• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    In a mast structure with at least two boom arms, which are pivotable relative to each other, the pivoting is effected by a hydraulic rotary drive having annular piston on a shaft-like inner ring, which are part of the rotary transmission. Furthermore, the rotary drive for the mast assembly is provided with outer rings, which are part of the transmission but also part of the piston-cylinder assembly.
    公开号:AT511833A4
    申请号:T1661/2011
    申请日:2011-11-10
    公开日:2013-03-15
    发明作者:Johann Dr Schabelreiter；Horst Dipl Ing Joebstl；Roland Dipl Ing Steinbauer
    申请人:Schwing Gmbh F；
    IPC主号:
    专利说明:

    PATENT OFFICER _
    DIPL ING. PETER ITZE 1U6Q VIENNA. AMERLINGSTRASSE 8 CMWALLAGASSE ^ · · · · · · «
    Schwing GmbH lmi.!. ·.! · *; * NOT) 11301 / I-Pw
    Mast construction, in particular for a truck-mounted concrete pump
    description
    The invention relates to a mast assembly in particular for a truck-mounted concrete pump and a truck-mounted concrete pump according to the preamble of claim 1 or claim IS.
    Mast structures consisting of at least two articulated arms pivotally connected to each other via a pivot axis are used for various working devices, in particular construction machines, such as excavators. However, one main application is concrete pumps, be they stationary or mobile, such as truck-mounted concrete pumps. Such Mastaufbauten are each composed of at least two, usually also more than two Mastarmen, which are hinged together at the ends. The mast arms carry Betonforderleitungen. To discharge the concrete to desired positions. In the construction of the building, the individual boom arms are extended by Verschwert, resulting in a change in the entire mast geometry results and thus different locations on the site are accessible through the mast. With the mast it is important to realize the greatest possible distances from the concrete pump to the point of loading the concrete at the construction site. Due to the large reach of the mast, this is subject to heavy loads, which essentially derive from the concrete-carrying conveyor lines running along the length of the mast and the concrete located therein. However, when using the truck-mounted concrete pumps, however, the load limits of the respective vehicle types may not be exceeded, which are usually vehicles approved for public road traffic, in particular trucks. While the masses of the conveyor pipes of the concrete can hardly be influenced at all, an optimization of its masses is required in order to obtain a longer reach of the mast.
    The joints between the masts are exposed to high demands. To obtain a sufficiently strong drive, are mostly
    Coupling gear in the manner of double-acting hydraulic cylinders, so-called
    Thrust piston gear, used for the pivoting movement. However, these have a relatively high weight due to the components of the coupling gear and the associated linear drive units and also require a high space requirement for construction reasons. This is problematic, however, because such truck-mounted concrete pumps are mounted on vehicles which are suitable for the vehicle
    Schwing GmbH::::. *:: * N * omi30i / i-Pw
    Mast construction in particular for a truck-mounted concrete pump must be allowed to operate on the road and therefore subject to certain regulations in terms of width and length. Furthermore, a disadvantage of the thrust piston transmission used is also that the angular velocity during the pivoting movement is relatively non-uniform. Therefore, the use of hydraulic load-holding valves on the hydraulic cylinders is absolutely necessary for the safe operation of this mast construction, since their yielding would cause an impermissible change in the angle of rotation between the mast arms. In addition, in such coupling gears in the manner of thrust piston transmissions, the pivoting of the two mast arms to each other only to a limited extent is possible, so that even about a limitation of the action and operation is accomplished.
    As with multi-arm mast superstructures usually the prevailing load in the last
    Mast arms is lower than in the first fattening arms, are used in the prior art as an alternative to the above-described kinematic system isolated at the joints to the mast end and hydraulic rotary actuators (DE 698 01 997 TI) with which uniform
    Angular speeds can be achieved. Although these funds build compared to
    Coupling or thrust piston transmissions are relatively small and are therefore also lighter in weight, but are not the necessary drive torques ready for pivoting the
    Joints of fattening arms are also necessary in the lower fattening area. In addition occurs
    Use of such hydraulic rotary actuators for load handling equipment, such as articulated arms of manipulators, mast arms and the like, the problem that the
    When the rotary drive is deactivated due to, for example, leakage, the load-carrying means or the boom arm still remains rotatable and can pivot. Such
    Twisting with deactivated drive but, as already stated above, in these
    Applications, especially in truck-mounted concrete pumps, inadmissible, which is why in the
    Technology corresponding braking devices are used on the rotary actuators, such as multi-disc brakes to twist the mast arms when deactivated
    Prevent rotary drive. In such disk brakes lamellar brake disc pairs are pressed against each other to prevent rotation of the mast arms relative to each other, which is here to pronounced wear parts Also, it is known to realize a brake that a flow of the
    Hydraulic fluid from at least one pressure chamber by separate 2 • · *. *:: * NÖamoi / i-Pw * · * ···
    Schwing GmbH ί # e
    Mast construction, in particular for a truck-mounted concrete pump
    Shut-off is prevented. However, these measures are relatively complex and prone to failure.
    The object of the invention is to provide a mast structure especially for truck-mounted concrete pumps or a truck-mounted concrete pump with such mast structures, with the mast arms can be uniformly swivel under load with structurally simple, robust and space-saving means over a large tilt angle and in each pivot position, the mast arms itself safely lock without much effort. In this case, a compact and balanced design should be possible.
    This object is achieved for a mast structure by the measures of the characterizing part of the feature 1, wherein expedient developments of the subclaims.
    According to the invention, a mast structure for particular truck pumps by a hydraulic drive is characterized in which at least one piston-cylinder assembly is provided with gear for converting a translatory Kolbenhin- and-herbewegung in a rotary motion for Mastarmverschwenkung, the at least two hydraulically driven, includes reciprocable annular piston, but also form a part of the rotary gear. Furthermore, these annular pistons cooperate with outer rings of the rotary transmission, which in turn are part of the piston-cylinder assembly, in particular part of the cylinder, and the annular piston overlap here and combing in a housing to form a cylinder chamber. This results in a so-to-speak integrated within the engine piston / cylinder assembly and thus a space-saving arrangement that allows at the same time over conventional thrust piston transmissions a very large pivoting of the mast arms to each other, in particular allows a rotation through 360 °. In addition, such a hydraulic drive ensures a constant rotary drive. Due to the fact that the annular pistons are part of the transmission, so to speak, even if the rotary drive fails, an automatic locking occurs as a result of the engagement of the toothings between the annular piston and the outer rings. 3
    Schwing GmbH Mast construction especially for a truck-mounted concrete pump
    NÖ011301 / I-Pw ···
    According to the claim 2, the annular piston sit axially displaceable on an inner ring and are rotatably connected thereto, which can be conveniently accomplished by positive engagement, in particular by a spline between the annular piston and inner ring. On this inner ring, which is preferably formed like a shaft, axle, wave-like or in the manner of a hollow cylinder and provided with an annular flange at one end, sit the outer rings, which cooperate with the annular piston, wherein the outer rings rotatably mounted relative to the inner ring, but axially against the Inner ring or are fixed to the inner ring. The outer rings in this case form in particular components of the housing of the rotary drive. The hydraulic rotary drive is thus made with few components and is therefore largely resistant to wear and low maintenance.
    Each ring piston is equipped with two oppositely directed serrations, which interact with complementary annular serrations on the outer rings. Characterized in that the annular piston alternately reciprocated, the teeth of the annular piston engage respectively in the corresponding teeth of the outer rings, wherein the driving flanks in each case accomplish a rotation of the outer rings on the toothed teeth. If the rotary drive fails or the rotary drive is deactivated in any other way, a self-locking effect is effected as a result of the engagement position of the various toothed teeth, so that the angular position once taken is in principle no longer changed. Separate braking devices are no longer required.
    According to the claim 4, the inner ring has an annular flange and is provided on its other side with a lid. Cover and annular flange can be connected via screw with the inner ring. Between the cover and the annular flange, the annular pistons and the outer rings are arranged, thus saving space in the smallest space. The structure of cover, annular flange, inner ring and outer rings then forms the cylinder for the therein accommodated and due to hydraulic fluid supply reciprocating annular piston, which alternately engage with reciprocating motion with the corresponding complementary teeth of the outer rings and provide the drive , 4 ··· # · «* · V ··· * ···« * ·· ♦ · * · ·
    Schwing GmbH: J. j.O f N0Q11301 / I-Pw
    Mast construction, in particular for a truck-mounted concrete pump
    It is obvious that the cooperating Stimverzahmingen of annular piston and outer rings are each directed towards each other, that is directed by the annular flange of the inner ring either away or in the direction of the annular flange. Stimulation here means, as shown in the drawing, that the teeth are not radially but axially aligned. In this case, the tooth flanks of the toothed teeth are formed so that the piston is converted into a rotary movement of the outer rings by the engagement position between the cooperating toothed teeth of the lifting drive.
    Conveniently, two annular pistons are used in accordance with the invention for a hydraulic rotary drive, which are surrounded by three outer rings. Of course, more annular piston can be realized on a rotary drive, in which case a corresponding plurality of outer rings are provided. However, it is also possible to use a plurality of successively connected rotary actuators instead of a rotary drive.
    The cohesion of the individual components of the rotary drive takes place here in a simple manner by screw, wherein the cover and ring flange bolted to the inner ring and the outer rings can be bolted together via radially projecting ring Schultem. For this purpose, several Schrauböffhungen are provided for the engagement of the screw over the circumference. Of course, the piston chambers and the piston are sealed in a suitable manner, as well as the individual components of the cylinder assembly, but this is at the discretion of the expert and therefore does not need to be specifically described and presented.
    Conveniently, the annular piston with a Hubversetzung be driven to each other, preferably in the case of two annular piston offset by half a stroke to each other.
    Here is preferably the one piston in its end position, while the other
    Piston is in a middle position. Conveniently, the annular piston can be acted upon on both sides, so that each piston two hydraulic connections are provided. The
    Control of the stroke of the annular piston is expediently, but not necessarily, mechanically and in particular with the aid of a suitable control disk, which the
    Switch impulse for the corresponding hydraulic valves for the hydraulic fluid supply 5 • ·
    • ·. .1. 0 f NÄ011301 / I-PW
    Schwing GmbH
    Mast construction intended especially for a truck-mounted concrete pump. The change in direction of the rotary drive, so the rotation reversal, this is done in a simple manner by reversing the stroke of the ring piston, due to the appropriate Hubversetzung the drive of the two pistons.
    In the context of the invention, self-protection for the described truck concrete pump as well as the hydraulic rotary drive itself is desired, which can also be used for other applications, such as excavators, cranes, drive a turntable for swivel assemblies and the like.
    Hereinafter, a preferred embodiment will be described with reference to the drawings. In it show in a purely schematic and non-limiting way
    Figure 1 is an exploded view of a preferred embodiment of the hydraulic drive;
    Figure 2 is a likewise exploded view of the drive according to claim 1 for explaining the order of assembly;
    Figure 3 is a side view of the preferred embodiment, also in exploded view;
    Figure 4 is an illustration of the hydraulic rotary drive in the assembled state;
    Figure 5 is a sequence of the components of the rotary drive during a part of the cycle during the piston movement;
    Figure 6 is a schematic representation of the effect of the spline between the annular piston and outer ring and Figure 7 is a representation of the application of a truck-mounted concrete pump.
    FIG. 1 shows an exploded view of a hydraulic generally designated 1
    Rotary drive, in particular as a pivot drive for the pivoting of the joint angle between two articulated arms of manipulators, in particular two mast arms of a
    Mast construction is used. Such mast structures are among others
    Truck-mounted concrete pumps used. These mast superstructures are composed of several mast arms arranged one behind the other and articulated with each other, which are separated by 6 • ·
    • NO0113O1 / I-PW
    Schwing GmbH
    Mast construction in particular for a truck-mounted concrete pump pivoting movement of the individual mast arms relative to each other in different operating positions and in a pivoted-in rest position are pivotable. In truck-mounted concrete pumps, the mast assembly is usually located on a turntable mounted on the vehicle frame. The mast assembly also carries piping conduits for conveying concrete. Such Mastauibauten, especially for truck-mounted concrete pumps are well known to those skilled in the art, so that in this respect no further details are required. For this purpose, reference may be made to the well-known prior art.
    The hydraulic rotary actuator 1 according to Figure 1 comprises an inner ring 2, which is designed as a splined shaft and insofar has a provided with a spline, here shaft-like wedge portion 3. Furthermore, the inner ring is provided at a front end with a radially outwardly projecting annular flange 4. The drive according to FIG. 1 also comprises three outer rings 5, 6 and 7, of which the outer ring 5 shown on the right in FIG. 1 is arranged adjacent to the annular flange 4. At this then joins the middle outer ring 6 and finally the left outer ring 7, which is held on the spline by a designated 80 lid, which in turn is fixedly connected to the end face of the inner ring 2, in particular screwed. The construction according to FIG. 1 further comprises two annular pistons 8 and 9, which can be reciprocated hydraulically and translationally within the structure. The annular piston 8, 9 are in this case held axially displaceable on the inner ring 2, but have on the inner circumference of Figure 2 closer apparent splines 10 and 11, which cooperate with the spline 3 of the inner ring 2, so that after placement of the annular piston 8 and Although these are axially displaceable along the inner ring 2, but rotatably connected to this inner ring, so are not rotatable relative to the inner ring.
    It should be noted that to simplify the presentation in such hydraulic rotary actuators usual sealant as well as hydraulic connections are not shown in detail. These can be chosen at will and suitably, but this is obvious to the person skilled in the art, so that it is not necessary to do so. 7
    Schwing GmbH # ♦ ♦
    Mast construction, in particular for a truck-mounted concrete pump
    FIG. 2 shows an installation method for forming the pivoting drive with the components shown in FIG. Visible is the inner ring 2 performing spline with spline 3, said designed as a shaft or shaft inner ring is provided at its end shown here right with a radially outwardly projecting and circumferentially formed annular flange 4. As will be described further below, the retaining flange 4 essentially has a holding function for the components arranged thereon. On the shank portion of this inner ring 2, the outer ring 5 shown in Figure 2 is first placed and pushed with its right side end face to the annular flange 4 and that towards the stop, the outer ring 5 forms a pivot bearing with the annular flange 4, since the outer ring relative to the inner ring 2 is rotatable.
    The outer ring 5 has a shank portion 5a and a stimulated outwardly projecting circumferential annular radial flange 5b, which is provided with Schrauböffiiungen 5 c over the circumference. Furthermore, a radially inwardly projecting annular shoulder 5d is provided on the outer ring 5 at the end adjacent to the annular flange 4, on the radial surface of which a peripheral annular toothing 5e is provided.
    In this outer ring 5, an annular piston 8 is inserted. This annular piston 8 has on both sides a shank portion 8a and in a central arrangement a circumferential annular outer shoulder 8b, on both of whose end faces each Stim teeth 8e are provided, which are directed opposite to each other, that is, the right in Figure 2 shown end teeth 8e points in the direction of the annular flange 4 and the outer ring 5, however, the teeth shown on the left 8e in the other direction, ie in the direction away from the annular flange 4. Clearly visible from Figure 2, the spline 10 for the rotational fixation of the piston with respect to the inner ring. The annular piston 8 is in this case inserted so far into the outer ring 5, that this abuts with its tooth teeth on the toothing of the outer ring 5.
    Finally, the middle outer ring 6 is fitted onto the annular piston 8 and pushed into abutment on the right outer ring 5. Also, this middle outer ring 6 has over the 8 ft ft: N00ii30i / i-Pw
    Schwing GmbH
    Mast construction, in particular for a truck-mounted concrete pump
    Circumferentially distributed Schrauböffiiungen 6c on. Further, in the middle of the outer ring 6, an inwardly projecting circumferential and annular radial shoulder 6d is provided, on the two end faces of which serrations 6e are formed, which in turn extend annularly. The toothed teeth 6e of the middle outer ring are oriented in the opposite direction to one another analogously to the annular toothings of the annular piston 8, that is to say the front toothing 6e shown in FIG. 2 points in the direction of the annular flange 4 of the same ring 2, whereas the toothed tooth 6e shown on the left points straight in the opposite direction.
    In this middle outer ring 6, an analogous to the annular piston 8 constructed and thus identical annular piston 9 is finally used, the same letter references are used for the same components as for the annular piston. 8
    Finally, the third and here shown left outer ring 7 is placed on this in turn abutting the counter-toothing ring piston 9 on the annular piston 9, wherein the outer ring 7 is constructed in principle identical to the outer ring 5, so that the comparable reference numerals have been used ,
    Finally, the lateral (left) termination forms the lid 80, which is also provided with circumferentially distributed screw holes 8c, by which the lid 80 can be fixedly connected to the inner ring 2 by screw connections, the screw openings for these screw connections on the side of the screw connections Inner ring 2 have been designated in Figure 2 with 3c.
    In that regard, the lid 80 is attached to the inner ring 4 and takes the three outer rings 5,6 and 7 between the annular flange 4 and cover 80, wherein these three outer rings 5 to 7, which engage on the shaft of the inner ring 2 two annular piston 8 and 9 overlap and with it. The outer rings 5 to 7 thereby form the housing of the rotary drive and the outer rings 5 to 7, which are connected to one another in a unit, are rotatably mounted with respect to the inner ring 2 with its annular flange 4 and with respect to FIG
    Inner ring 2 attached lid 80. In that regard, the outer rings 5 to 7 opposite to the
    Inner ring 2 with cover 80 rotatably, so that between the wave-like inner ring 2, as 9 «·« ·. f l301 / I-Pw
    Schwing GmbH
    Mast structure is designed expediently in particular for a car concrete pump hollow shaft, and the outer rings 5 to 7, a pivot bearing is formed. If necessary, this pivot bearing can be designed as a pure sliding bearing or as a rolling bearing.
    Inner ring 2 with annular flange 4, cover 8 and the three outer rings 5,6 and 7 in this case form a cylinder of a cylinder-piston arrangement within which the two annular pistons 8 and 9 axially reciprocally along the shaft of the inner ring 2 are added ,
    Incidentally, the structure also results from FIG. 3 in a side view, wherein the same reference numerals have been used in FIG. 3 as in FIG.
    Hydraulic connections 12 can also be removed purely schematically from FIG. 3 with respect to the left outer ring 7, the middle outer ring 6, here two connections are provided, and with respect to the right outer ring 5 with a hydraulic connection 12. Furthermore, spacers to be suitably provided can be seen from the FIGURE , which need not be discussed here. The Schrauböffiiungen are indicated by dashed line. The annular piston 8 and 9 are in this case driven hydraulically and that on both sides, which is why each annular piston 8 or 9 two hydraulic ports 12 are provided.
    The assembly of the components shown in Figures 1 to 3 finally results from Figure 4, which shows the pivot drive 1 in assembled and partially cut position. Again, the same reference numerals as in Figures 1 to 3 are used. From Figure 4 is quite clear that the two annular piston 8 and 9 axially movable within the structure of the annular flange 4, cover 80 and the outer rings and the shaft portion of the inner ring 2 are guided and thus by suitable
    Hydraulic fluid supply via the hydraulic connections 12 can be moved translationally back and forth. From Figure 4 also shows that, if necessary, the annular flange 4 on the
    Circumference distributed with openings 4c may be provided so that this through
    Screw connections and / or bolts or pin connections with the shaft 13 of the
    Inner ring can be connected. This is done appropriately a form-fitting
    Composite. For this purpose, the shaft 13 is provided at the end with corresponding openings 13e. * · · · Schwing GmbH · #. * Mast construction, especially for a truck-mounted concrete pump · »· · ···: N00il301 / I-Pw
    Inner ring 2 and annular flange 4 form a unit. As Figure 4 shows quite clearly, the outer ring 5 is in abutment with the annular flange 4 and the other two outer rings 6 and 7 are set to stop each other and fixed end side by the lid 80 and thus firmly received within the composite, but rotatably mounted, which is essential. As Figure 4 shows quite clearly, the two axially floating so-mounted annular piston 8 and 9 are axially movable in the direction of limiting the toothing of the outer rings. Of course, the pistons, this also the axially outwardly projecting shoulder 8b is sealed accordingly, so that is moved by applying hydraulic fluid on the left side or right side of the respective piston this corresponding translationally on the spline shaft of the inner ring 2 between the engagement positions with the teeth.
    It is essential that the hydraulic drive of the two annular piston is offset from one another, so that they are moved so to speak altematierend each other. This makes a constant rotary drive possible. In particular, the two hydraulically driven annular piston offset by half a stroke are controlled alternately to each other. The control takes place in a suitable manner and is preferably operated mechanically by a control disk, which is not shown here, which controls the switching pulses for the corresponding hydraulic valves for the supply of hydraulic fluid to the two annular piston. Such a mechanical control is advantageous because it allows an unaltered control in any operating condition. This is important for the engagement position of the cooperating teeth. In the staggered stroke arrangement of the piston by half a stroke, for example, one of the annular piston is in its end position, while the other piston is in a middle EingrifFstellung. In addition, during the switching phase of the direction of travel, the drive of the corresponding piston expediently rests for a short time.
    FIG. 5 shows by way of example the sequence of engagement positions of the two annular pistons in FIG
    Regarding the toothed teeth of the outer rings. The sequence shown in FIG. 5 in this case indicates a rotary drive, in which the three outer rings are moved in the clockwise direction, as indicated by arrow F1 in FIGS. 5a to 5d. The arrows F2 indicate the stroke direction, ie the translational movement of the two annular pistons. To mark 11
    Schwing GmbH
    : EflilBOl / I-Pw • 4 • * 4 ·
    Mast construction, in particular for a truck-mounted concrete pump, is that FIG. 5 again is shown purely schematically. Therefore, annular piston and outer rings are each provided only with the corresponding reference numerals S to 9, without providing the teeth of the individual components with the corresponding reference numerals. Obviously, the teeth of the two annular pistons 8, 9 alternately engage in the corresponding toothings of the corresponding outer rings, here in each case the annular piston 8 alternately in the outer rings 5 and 6 and annular piston 9 alternately in the outer rings 6 and 7. If, for example, the annular piston 9 with his In Figure 5 left teeth shown in Figure a moves to the left and engages in the corresponding S gemverzahnnung the left outer ring 7, this is rotated in the clockwise direction, wherein the right end toothing of the annular piston 9 comes out of engagement with the corresponding toothing of the middle outer ring. The same applies to the toothing of the annular piston 8. As a result of the reciprocating movement results in a mutual engagement, so that the rotary actuator can be rotated by any angle and that in a constant rotational movement, which can be finely controlled. By adapting the geometry of the toothing in the height direction, moreover, a flank adjustment of the contact surfaces of the teeth can be achieved, which causes the largest possible surface of the teeth can be used for the contact in the engaged position. Obviously, it is achieved via the engagement of the toothings that the outer rings are rotated due to the forces occurring at the tooth flanks as a result of the wedge force.
    FIG. 6 indicates the basic principle of the spline toothing. The teeth on the annular piston in this case engage in the toothing of the outer rings and thus convert the axial force of the piston movement Fa in a rotational force Fu. With each piston stroke thus a rotational movement is effected by the amount h of the counter-catheter.
    FIGS. 5a to 5d show the rotation of the outer rings in the clockwise direction.
    By reversing the stroke sequence of a control disk, for example driven ring piston an opposite direction of rotation is possible, so the rotation of the outer rings counterclockwise, but this is not reflected in the sequence of representations in Figure 5. 12 N0011301 / I-Pw
    Schwing GmbH · · · *. ; ;
    Mast construction especially for a car concrete pool ............
    Also not shown in the figures is the assignment of the components of the rotary drive to the fattening arms, which is obvious to the skilled person, for example, one of the two relatively pivotable mast arms with the annular flange 4 and / or the lid of the inner ring 2 to be firmly connected, whereas the other mast arm, which should be pivotable relative to the first mast arm by means of the rotary drive, be fixed with one or more of the outer rings. By appropriate rotation of the pivot drive then the entanglement or the pivoting of the two mast arms can be accomplished relative to each other, wherein the rotary drive is absolutely constant and depending on the construction of Mastarmaufbaus any pivoting of the mast arms relative to each other in an extremely compact design of the structure is possible.
    Depending on the design of the relatively pivotable mast arms, it is possible here to use only one hydraulic rotary drive, but it is also possible to use two or more, in particular axially aligned, hydraulic rotary drives per hinge axis. Conveniently, more than two annular piston can be used in the rotary drive, so that the rotary drive can be designed as a 3-piston system. This is ultimately dependent on the design of the hydraulic rotary actuators and also on the interpretation of the boom arms and their size and planned load bearing.
    In the case of engagement of the mutually cooperating toothed teeth between the annular pistons and the respective outer rings, the control takes place in such a way that, when the toothed teeth of an annular piston are retracted into the toothing of a corresponding outer ring, the teeth are inserted into a respective tooth gap, ie not tooth tip on tooth tip ride, so that when entering the end toothing of the annular piston in each case the driving flanks of the teeth of the tooth teeth accomplish the rotation of the corresponding outer ring, including the rotatably connected further outer rings.
    By way of example only, a preferred application of the invention will be illustrated with reference to FIG. 7 shows a movable truck-mounted concrete pump with a driver's cab 21 on a vehicle frame 22, on which a concrete pump is mounted. Furthermore, FIG. 7 shows a 13
    • 4 · ι · ΜΙ · ΙΜ MM
    Schwing GmbH j j 'j. N0011301 / I-Pw
    Mast construction, in particular for a car concrete lane ............
    Mast assembly 23 of a total of three mast arms 24,25 and 26, which are hinged together at their ends and swung out and also carry Rohrforderleitungen 27. The mast assembly 23 is in this case arranged on a turntable 28 and thus also pivotable about a vertical axis. 7 shows a conventional vehicle in which hydraulic pistons in the manner of thrust piston gears (29) are used for pivoting the mast arms, which are replaced by the rotary drive according to the invention. For example, according to the invention, the mast arms 25 and 26 are pivoted by a hydraulic rotary drive, wherein Here reasonably the inner ring or cover 80 and / or annular flange 4 may be fixedly connected to the mast arm 26 and the mast arm 25 fixed to the outer rings 5 to 7. By appropriate timing of the ring piston can then pivot the two mast arms 25 and 26 relative to each other respectively. This results in a precise, angular extension movement, which can also be approached precisely repeated as part of the overall control. The apparent from Figure 4 cavity 15 by the rotary drive due to the annular formation of the components he also allows the delivery line 27 can penetrate the center of the joint 30, as can be seen from Figure 7
    14
    权利要求:
    Claims (16)
    [1]
    PATENT OFFICER DIPL. ING. PETER ITZE 1UÖ0 WIEN, AMERLINGSTRASSE 8 CiiWAt ^ VGASSE4 ^ »» »« «« # * «« »» N0011301 / I-Pw Schwing GmbH *; . *; f Mast structure, in particular for a truck-mounted concrete pump. Claims 1. Mast construction, in particular for truck-mounted concrete pumps, with at least one first and one second mast arm, which are connected to each other in an articulated manner via an axle and which are connected by at least one hydraulic rotary drive rotatable relative to each other about this axis for the purpose of Mastarmverschwenkung, characterized by at least one piston-cylinder arrangement with gear for converting the translational piston reciprocating motion in a rotary motion for Mastarmverschwenkung, which at least two hydraulically driven annular piston (8,9) includes, which also form part of the transmission and with outer rings (5,6,7) of the transmission interact, which are also part of the piston-cylinder assembly.
    [2]
    2. mast assembly according to claim 1, characterized by a central, preferably formed by a spline inner ring (2) on which, preferably with a complementary spline annular piston (8,9) rotatably, but arranged axially displaceable in series one behind the other and with the annular piston (8,9) co-operating outer rings (5-7) are rotatably arranged but fixed axially.
    [3]
    3. Mast structure according to claim 1 or 2, characterized in that each annular piston (8, 9) has two annular teeth (8e, 9e) which are directed away from each other in each annular piston and with complementary annular teeth (5e, 6e, 7e) respectively a part of the outer rings (5,6,7) interaction.
    [4]
    4. Mast structure according to one of claims 1 to 3, characterized in that 1 Schwing GmbH:! Mast construction especially for a truck-mounted concrete pump • N0011301 / I-Pw the inner ring (2) is formed on one side with an annular flange (4) and on its other side with a flange-like cover (8), preferably on the inner ring (2) it can be fastened that the annular pistons (8, 9) and the outer rings (5-7) between the cover (8) and annular flange (4) are arranged, that the inner ring (2) with the annular flange (4), the lid (8) and the outer rings (5-7) forming the cylinder for the annular piston and limits the axial reciprocation of the annular piston on the inner ring, wherein the teeth (5e-9e) of the annular piston and outer rings constitute the transmission of the rotary drive.
    [5]
    5. Mast structure according to one of claims 1 to 4, characterized in that on the inner ring (2) two annular piston (8, 9) and three outer rings (5,6,7) are arranged, which engage over the annular piston (8,9) ,
    [6]
    6. Mast structure according to claim 5, characterized in that the annular flange (4) fitting (right) outer ring (5) on its inner circumference of a ring flange (4) directed away toothing (5e), preferably at a circumferential inner shoulder (5d) is formed of the outer ring (5) that the annular flange (4) adjacent (right) annular piston (8) directed to the annular flange (4) Stimulation (8e) for engagement with the end teeth (5e) of the annular flange (8) adjacent (Right) outer ring (5), that the lid (8) fitting (left) outer ring (7) on its inner circumference an annular flange (4) directed end toothing (7e) preferably on an inner shoulder (7d), which with a from the annular flange (4) directed away toothing (9e) of the lid (8) adjacent (left) annular piston (9) cooperates, and that between the right and left outer ring (5.7), a middle outer ring (6) is arranged two toothed teeth ( 6e), of which the annular flange (4) adjacent end teeth on the annular flange (4) and the cover (8) adjacent end teeth of the annular flange (4) is directed away, both toothed teeth (6e) preferably each on an inner shoulder (6d) of the middle outer ring (6) 2 • · • · N001130t / I-Pw Schwing GmbH:; ; Mast structure are arranged in particular for a truck-mounted concrete pump, and the two toothed teeth (6e) each cooperate with a further (second) end toothing (8e, 9e) of the annular piston (8,9) together.
    [7]
    7. mast assembly according to claim 6, characterized in that the Stimverzahnungen (5e to 9e) are complementary to each other, and preferably a continuous planar tooth flank contact between at least a portion of the teeth is guaranteed.
    [8]
    8. mast assembly according to claim 6 or 7, characterized in that the two end toothings of each annular piston (8,9) arranged centrally on the outer circumference of the annular piston and preferably on both sides of a central outer shoulder (8b, 9b) are provided.
    [9]
    9. mast assembly according to one of claims 1 to 8, characterized in that the cover (8) is arranged by means arranged over the circumference screw with the ring flange opposite end face of the inner ring (2), and that the outer rings (5, 6, 7 ) are connected to each other by each arranged over the circumference of screw, and that preferably the construction elements of the rotary drive, in particular cover, annular piston, outer rings and inner rings with flange, hollow, in particular annular and a central cavity through the rotary drive for the passage of pipes, Cables and the like forms.
    [10]
    10. mast assembly according to one of claims 1 to 9, characterized in that the toothed teeth (5e to 9e), in particular their teeth are contoured with their tooth flanks such that the translational reciprocating motion of the annular piston (8, 9) as a result of engagement Spur teeth in a rotational movement of the outer rings (5, 3

    4 Mast construction, in particular for a truck-mounted concrete pump 6, 7).
    [11]
    11. Mast structure according to one of claims 1 to 10, characterized in that the Ringkoiben (8,9) on the inner ring (2) in the boundary of the toothed teeth (5e to 7e) of the outer rings (5,6,7) are movable.
    [12]
    12. Mast structure according to one of claims 1 to 11, characterized in that the annular piston (8,9) staggered staggered, in particular offset by half a stroke are alternately hydraulically driven to each other, and that preferably each annular piston two hydraulic connections for the two-sided application of the piston associated with hydraulic fluid.
    [13]
    13. Mast structure according to claim 12, characterized in that the control of the annular piston (8, 9) mechanically by means of a (not shown in the drawing) control disk which determines the switching pulses for corresponding hydraulic valves for the hydraulic supply to the annular piston (8,9).
    [14]
    14. Mast structure according to one of claims 1 to 13, characterized in that the first mast arm with the inner ring (2), in particular the annular flange (4), and / or the lid (80) fixedly connected and the second mast arm with at least one of Outer rings (5, 6, 7) is firmly connected or vice versa.
    [15]
    15. truck concrete pump with a vehicle, a concrete pump with a connected pipe delivery line and with a mast structure with at least two mutually pivotable mast arms, the concrete pump and the mast assembly are arranged on the vehicle, characterized by 4 Schwing GmbH N0011301 / I-PW Φ mast assembly in particular for a truck-mounted concrete pump a mast assembly according to at least one of claims 1 to 14.
    [16]
    16. Hydraulic rotary drive, in particular for a mast construction or a mast construction supporting turntable, in particular a truck-mounted concrete pump, characterized by on the rotary drive related features of at least one of claims 1 to 14.

    FOR ELD £ R (IN); 2011 JWA1.T DIPL ΓΓΕΡ1T7P 5
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    US9453351B2|2016-09-27|
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    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    US4771646A|1987-01-05|1988-09-20|Vetco Gray Inc.|Rotating and indexing mechanism|
    EP0894915A1|1997-07-31|1999-02-03|Cifa S.P.A.|Concrete supply arm with articulated sections|
    AT332101B|1969-06-10|1976-09-10|Schwing Friedrich|DEVICE FOR SPREADING CONCRETE|
    US4519768A|1982-10-29|1985-05-28|Takenaka Komuten Co., Ltd.|Apparatus for horizontally casting concrete|
    DE3409474C2|1984-03-15|1986-11-27|Maschinenfabrik Walter Scheele GmbH & Co KG, 4750 Unna-Massen|Collapsible concrete distribution equipment|
    DE4208831A1|1992-03-19|1993-09-23|Putzmeister Maschf|CAR CONCRETE PUMP|
    US6959913B2|2003-06-13|2005-11-01|Dynamic Air Inc.|Actuator|
    FR2907869B1|2006-10-31|2009-11-27|Robotiques 3 Dimensions Sarl|ACTUATING DEVICE TRANSFORMING A MOVEMENT OF VA AND COMING TO TRANSLATION OR ROTATION MOVEMENT|
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    CN101793092B|2010-02-05|2011-07-06|三一重工股份有限公司|Concrete pump truck and boom device thereof|
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    DE102013209878A1|2013-05-28|2014-12-04|Putzmeister Engineering Gmbh|Implement with arranged on a turret work boom|
    DE102014200396A1|2014-01-13|2015-07-30|Putzmeister Engineering Gmbh|Truck-mounted concrete pump and protection circuit for it|
    DE102014203054A1|2014-02-20|2015-09-03|Putzmeister Engineering Gmbh|Concrete distributor boom, in particular a mobile concrete pump|
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    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    ATA1661/2011A|AT511833B1|2011-11-10|2011-11-10|MASTER CONSTRUCTION, ESPECIALLY FOR A AUTOBETON PUMP|ATA1661/2011A| AT511833B1|2011-11-10|2011-11-10|MASTER CONSTRUCTION, ESPECIALLY FOR A AUTOBETON PUMP|
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    CN201280063892.9A| CN103998368B|2011-11-10|2012-11-07|It is particularly useful for jib structure and the Vehicular concrete pump of Vehicular concrete pump|
    CN201610329185.XA| CN105947909B|2011-11-10|2012-11-07|Jib structure and Vehicular concrete pump|
    EP12790413.4A| EP2776360B1|2011-11-10|2012-11-07|Boom construction, in particular for a truck-mounted concrete pump, and truck-mounted concrete pump|
    US14/357,762| US9453351B2|2011-11-10|2012-11-07|Boom construction for a truck-mounted concrete pump|
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