• 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 rotor part (2) of a high-pressure cleaning mill (0), which can be mounted rotatably on a stator part (1) by means of water pressure about its longitudinal axis, wherein the rotor part (2) has a stator recess (203) starting from a connection side (200) at least one drive nozzle channel (2031) opens, so that the rotor part (2) upon pressurization by the recoil water emerging from the at least one drive nozzle channel (2031) rotatable in a direction of rotation and driven in a feed direction, an optimized cleaning effect while protecting the inner walls of Tubes and channels are reached. This is achieved in that the rotor part (2) in one piece in the form of a spherical cap (20) is configured, on the ball surface (202) at least one groove (204) with a Nutenschneidkante (2040) from a connection side (200) to a Pol side of the spherical cap (20) is arranged to extend, so that the at least one Nutenschneidkante (2040) is used in operation as a milling edge, which acts on deposits.
    公开号:CH710535A2
    申请号:CH01974/14
    申请日:2014-12-18
    公开日:2016-06-30
    发明作者:Lendi Christoph；Riebli René
    申请人:Enz Technik Ag；
    IPC主号:
    专利说明:

    Technical area
    The present invention describes a rotor part of a high-pressure cleaning cutter, which is rotatably mounted by means of water pressure about its longitudinal axis on a stator, wherein the rotor part has a Statoraussparung from a connection side, which opens into at least one drive nozzle channel, so that the rotor part when pressurized by the Return of escaping water from the at least one drive nozzle channel rotatable in a direction of rotation and can be driven in a feed direction, which by mechanical action of the surface of the rotor part on deposits in pipes and / or channels a cleaning effect can be achieved, and a high-pressure cleaning cutter with a rotor part.
    State of the art
    High pressure or high pressure cleaning nozzles have been known for some time, which are used for cleaning pipe and / or channel inner walls by means of cleaning fluids. Such cleaning nozzles generally have a stator part and a rotor part rotatable on the stator part, wherein the rotor part can be rotated by means of discharge of a fluid, usually water, under pressures of up to 3000 bar. The rotor part is thereby rotated by the exiting fluid, moved in a feed direction and thereby emerging from a cleaning nozzle from the rotor part fluid exerts a cleaning effect upon impact of the fluid in the form of a cleaning jet on the pipe and / or channel inner wall.
    A possible such fluid-operated cleaning nozzle is to be found in the applicant's CH 699 422, but also shown for example in CN 203 635 378. In order to achieve satisfactory cleaning effects with such cleaning nozzles, the producible cleaning jet must have sufficient exit length and force to allow deposits to be removed from the interior walls. If the fluid pressure is too high, it may happen that the fluid jet tends to atomise, so that the resulting cleaning effect decreases. However, depending on the nature of the deposit, the water jet emerging from the cleaning nozzle is often insufficient to clean the interior walls as desired, especially mineral deposits.
    It has been created with a fluid drivable Hochdruckreinigungsfräsen which can be introduced into pipes and / or channels, wherein mechanical cleaning of a rotor part of the high-pressure cleaning machine with deposits a cleaning effect is achieved. Such a high-pressure cleaning cutter has a stator part in the form of a carriage, on which the milling head rotatable by means of water is arranged in front of it.
    The stator in this case carries a plurality of cleaning nozzles, which are acted upon for rinsing impurities with water. Also with water, the rotor part is set in rotation, wherein the water emerges from a rotary nozzle. The rotor part is designed with such a large diameter that it can be guided as close as possible in the immediate vicinity of the pipe and / or channel inner walls. As a rule, the rotor part is conically tapered and usually reinforced with carbide inserts or even diamond teeth. Such a rotor part penetrates into small passages of heavily contaminated pipes and channels, so that with such a rotor part even stubborn mineral deposits and roots can be removed from the inner walls. A disadvantage of such cleaning nozzles or high-pressure cleaning milling is a lack of flexibility, a large structure, the complex construction and heavy use of the pipe and channel walls to be cleaned. Although such high-pressure cleaning cutters are characterized by long service life, but are complicated to manufacture and include a large amount of components. Due to the height, the operation is cumbersome and the mashing cleaning nozzle must be carefully adapted to the pipes to be cleaned, which is possible by adjusting the carriage dimensions and the cutting teeth.
    It is a handy drivable by water high-pressure cleaning mill known which comprises a milling head in the form of a cage made of metal welded together cage struts. This cage is placed on a sleeve, whereby a rotor part is formed. A stator part can be fastened to the sleeve, through which water can be fed to the rotor part. By at least one exiting water jet, the rotor part can be rotated. The edges of the cage struts form milling edges, which can be brought into contact with deposits during rotation of the cage, wherein deposits are cut off or milled off.
    A disadvantage of such a high-pressure cleaning cutter that during milling the pipe and / or channel inner walls are attacked. Due to the water pressure in connection with the cage construction, the rotor part in the form of the cage reaches extremely high speeds in the range of sometimes more than 10,000 revolutions per minute at pressures of 100 bar. Due to such high rotational speeds of the cage-like rotor part, damage to the inner walls to be cleaned are often unavoidable. Consequently, the cleaned pipes and channels must be subsequently inspected retroactively by means of inspection systems with camera for damage, which leads to an unacceptable additional effort. In order to protect the inner walls of the pipes and channels to be cleaned, the high-pressure cleaning cutters of the prior art can be operated with reduced water pressure or the mass of the rotor part is reduced, whereby damage to the inner walls is not necessarily caused. Understandably, however, the cleaning effect is also reduced by these measures.
    Presentation of the invention
    The present invention has for its object a commercially available simple compact driven by a fluid high-pressure cleaning machine is created, by means of which an optimized cleaning effect is achieved, the inner walls of the tubes and channels but are also reliably protected.
    So far, it has not been possible with a high-pressure cleaning cutter rooting of pipes and channels to cut and eliminate mineral deposits and at the same time to protect the interior walls.
    A suitable high-pressure cleaning cutter is achieved by using a rotor part in the form of a spherical cap, which is simply plugged onto a stator and rotatable about this by means of exiting liquid jet, along the ball surface a plurality of grooves are formed with Nutenschneidkanten. The spherical cap represents a compact spherical segment body with comparatively high mass.
    The rotor part with higher mass is braked by braking jets from brake channels exiting to rotational speeds which are below comparable high-pressure cleaning cutters, so that can be worked with higher energies due to greater mass but lower rotational speeds gentle on the inner wall.
    Also, the production of the compact rotor part is compared to high-pressure cleaning milling of the prior art easier possible, especially as can be dispensed with welding a cage struts to a cage.
    Brief description of the drawings
    A preferred embodiment of the subject invention will be described below in connection with the accompanying drawings.<Tb> FIG. FIG. 1 shows an exploded view of a high-pressure cleaning mill with a milling effect, comprising a stator part and a rotor part, during. FIG<Tb> FIG. 2 <SEP> shows a longitudinal section only through the rotor part of the high-pressure cleaning machine.<Tb> FIG. 3a shows a front view of the pole side of the rotor part according to FIG. 2, wherein channels are indicated by dashed lines within the rotor part.<Tb> FIG. 3b shows a longitudinal section through the rotor part of FIG. 3a along the line C-C, while FIG<Tb> FIG. 3c <SEP> shows a longitudinal section through the rotor part from FIG. 3a along the line B-B.<Tb> FIG. 3d <SEP> shows a side view of the rotor part from FIG. 3a, whereby unbalance bores are indicated by dashed lines.
    description
    The high-pressure cleaning mill 0 described here comprises a rotationally fixed stator part 1 and a rotor part 2 which can be connected to the stator part 1 and rotatable about a longitudinal axis L. The stator part 1 is substantially cylindrical in shape and has a connection 10 to which a water pipe is directly or indirectly connected is indirectly connectable. The high-pressure cleaning machine 0 described here can be operated with water, in particular with recycled water. During operation, a supply hose is connected to the connection 10 of the stator part 1, so that the high-pressure cleaning machine 0 can be subjected to pressures of up to 3 kbar. An insertion 11 of the stator 1 is inserted into a stator recess 203 in the rotor part 2. The stator 1 can thus be connected to the rotor part 2, whereby the complete high-pressure cleaning machine 0 is formed. For the design of the stator 1 and the terminal 10 some designs from the prior art are known. It is important that a sufficiently stable operative connection between the stator part 1 and rotor part 2 can be achieved, which is maintained even when pressurized and a rotational movement of the rotor part 2, as will be described later, allowed.
    The rotor part 2 is compact in one piece as a spherical cap 20 and thus designed as a spherical segment body. From a connection side 200 of the spherical cap 20 in the ball segment body in the direction of the longitudinal axis L to an opposite Polsseite 201 projecting, the Statoraussparung 203, the spherical cap 20 is partially formed across. On the ball surface 202, a plurality of grooves 204 are arranged. The grooves 204 are here milled into the spherical surface 202, preferably each have the same depth and extend from the connection side 200 via the ball surface 202 to the pole side 201.
    Before the Statoraussparungsöffnung 2030, the grooves 204 are completed, so that the seat of the stator 1 is not disturbed in the Statoraussparung 203 and a stable connection can be achieved. The grooves 204 are milled on the pole side 201 as close as possible to the pole of the spherical cap 20, the grooves 204 but not reach the pole of the spherical cap on the pole side 201.
    In order to simplify the production, wherein the grooves 204, the Statoraussparung and channels are milled from the solid, a cylindrical portion 205 in the region of an equatorial line of the spherical cap 20 is provided.
    In Fig. 2, the rotor part 2 is shown in the form of spherical cap 20 alone, wherein the rotation taking place in operation is indicated by a circular arrow. From the stator recess 203 branching drive nozzle channels 2031 lead water out of the Statoraussparung 203 out of the rotor part 2, whereby on the one hand the rotation of the rotor part 2 about the longitudinal axis L is achieved and second feed in the feed direction V, which indicated by a dashed arrow is, is generated. Here preferably three drive nozzle channels 2031 are introduced into the body of the spherical cap 20, with which the rotation and the feed can be achieved. The rotation achievable due to the orientation of the drive nozzle channels 2031 can be described here with a "left-hand rule". Wherein the thumb indicates the feed direction V, while the rotation of the rotor part 2 follows the course of the fingers, as shown in Fig. 2.
    The upstream in the direction of rotation Nutenschneidkanten 2040 each groove 204, meet in the operation of the high-pressure cleaning 0 first on deposits such as calcifications or rooting and act on this.
    In order to couple the drive nozzle channels 2031 to the stator recess 203, supply channels 2032 are drilled from the spherical surface 202 to the stator recess 203 in this case. From these supply channels 2032 branch off the drive nozzle channels 2031.
    The front view of the rotor part 2 according to FIG. 3a shows in dashed lines a total of three supply channels 2032, which lead from the stator recess 203 to the outside through the spherical cap 20, are distributed symmetrically in 120 ° steps along the circumference and extend in the direction of the spherical surface 202 , Here, the supply channels 2032 open into a drive nozzle channel 2031 and into a respective brake channel 2033. While the drive nozzle channels 2031 are oriented in such a way that rotation in the direction of rotation R is achievable, the brake channels 2033 and the rotational speed are decelerating opposite to the orientation of the drive nozzle channels 2031 arranged. The use of a brake channel 2033 is sufficient, which at least partially crosses the spherical cap 20. Upon pressurization, a brake jet is generated, which emerges from the at least one brake channel 2033 and generates a recoil, which causes a deceleration of the rotational speed of the rotor part 2.
    For a braked rotation is achieved, the angle between the brake channels 2033 can be optimized relative to the longitudinal axis L or the flow through the brake channels 2033 can be adjusted. To define the flow, various nozzle inserts can be introduced into the brake channels 2033 and / or the drive nozzle channels 2031.
    When pressurized water is passed from the Statoraussparung 203 via the supply channels 203 in the drive nozzle channels 2031 and the brake channels 2033, whereby the rotor member 2 is rotatable about the longitudinal axis L with a braked rotational speed. The rotational speeds achievable with the high-pressure cleaning machine 0 according to the invention were approximately 7000 rpm in tests, which is only about half as fast as rotational speeds measured in the case of high-pressure cleaning milling machines known from the prior art.
    As the sectional view Fig. 3b along the line C-C shows, the supply channel 2032 can be introduced as a bore from the ball surface 202 at a defined angle to the stator recess 203. This supply channel 2032 is provided at its surface-side end with a blind plug, so that water can escape only through the likewise drilled drive nozzle channels 2031 and brake channels 2033. Here, by way of example, an angle of 49 ° between the longitudinal axis L and the supply channel 2032 is selected.
    In the area of the pole side 201, an optional flushing channel 2034 directed away from the connection side 200 is arranged. This flushing channel 2034 is preferably configured aligned at an angle to the longitudinal axis L and serves to deliver a flushing jet. In particular, the flushing passage 2034 is recessed at an angle of 5 ° to 25 °, more preferably about 10 °. When water is applied to the rotor part 2, an additional flushing jet from the flushing channel 2034 is thus accessible in the direction of the feed direction V, as indicated by the dashed arrow in FIG. 3c.
    The rotor part 2 shown here is formed as a spherical cap 20, wherein a flattening in the region of the connection side 200 of a ball was made. Accordingly, the Kalottenbauhöhe h is made smaller than the maximum diameter D of the ball segment body or the full ball due to this flattening. In order to achieve sufficient stability of the spherical cap 20, a ratio of the cup height h to the diameter D of greater than 0.7 is preferably selected.
    As experiments have shown, the cleaning efficiency can be increased even if the spherical cap 20 is provided with an imbalance. Such an imbalance can be achieved by different means. Here were two unbalance holes 206 of the same diameter but different depth, provided in the form of blind holes. Such imbalance bores 206 are simply millable into the spherical cap 20, preferably from the connection side 200, whereby an inhomogeneous weight distribution of the mass of the spherical cap 20 can be achieved. The resulting imbalance results in rotation of the spherical cap 20 to a striking movement, which leads to a tapping of mineral deposits, such as calcifications.
    As can be seen in the figures shown here, the grooves 204 are spaced from each other spirally introduced into the spherical surface 202 extending. Experiments have shown that removed deposits are best transported away when this helical or helical arrangement of the grooves 204 is used. By a helical course of the grooves 204, longer portions of the groove cutting edges 2040 come into contact with the deposits to be removed on the inner walls of the pipes and / or channels, whereby the efficiency is increased. As has also been shown, self-sharpening of the groove cutting edges 2040 during operation takes place in such oriented grooves 204. So long service life with self-sharpening Nutenschneidkanten 2040 can be achieved. The milling of spirally running grooves 204 is only slightly more complicated than milling parallel to the longitudinal axis of the spherical cap 20th
    Due to the special design of the rotor part 2 as solid one-piece tip-free and rounded to the pole side 201 spherical cap 20 with grooves 204, a high-pressure cleaning cutter 0 with optimized milling action can be achieved. Due to the shape of the rotor part 2 in the form of the spherical cap 20, the rotor part 2 reaches a high weight with optimized mass distribution with sufficiently strong wall thickness, so that a robust rotor part 2 can be achieved. The average wall thickness is more homogeneous and larger than in the case of conical or cuboid-shaped rotor parts 2.
    The rotor part 2 in the form of the spherical cap 20 is due to the one-piece extremely robust and easy to manufacture. The preparation takes place by creating a closed full spherical cap 20 from a full ball. As material for the rotor part 2, alloys from the group of stainless steels are used. In a next step, channels, such as the stator recess 203, supply channels 2032, drive nozzle channels 2031 and brake channels 2033, and optionally a flushing channel 2034 are milled from the solid. Subsequently, the grooves 204 are mounted on the ball surface 202 by milling. Optionally, at least one unbalance bore 206 can be drilled into the body of the spherical cap 20.
    Such a compact shape of the spherical cap 20 is easier to produce than a shape of welded together struts. By using brake channels 2033, the resulting rotational speed can be kept comparatively low. Accordingly, a rotor part 2 with increased mass and optimized rotational speed can be achieved, whereby the milling efficiency is improved.
    LIST OF REFERENCE NUMBERS
    [0032]<Tb> 0 <September> High-pressure cleaning milling machine<Tb> 1 <September> stator<Tb> <September> 10 <September> Connection<Tb> 2 <September> rotor part<Tb> <September> 20 <September> spherical cap<Tb> <September> <September> 200 <September> Connection page<Tb> <September> <September> 201 <September> pole side<Tb> <September> <September> 202 <September> sphere<Tb> <September> <September> 203 <September> Statoraussparung<tb> <SEP> <SEP> <SEP> 2030 Stator recess opening<tb> <SEP> <SEP> <SEP> 2031 drive nozzle channels<tb> <SEP> <SEP> <SEP> 2032 Supply Channel<tb> <SEP> <SEP> <SEP> 2033 Brake Channel<tb> <SEP> <SEP> <SEP> 2034 Flushing channel<Tb> <September> <September> 204 <September> Nut<tb> <SEP> <SEP> <SEP> 2040 Groove Cutting Edge<tb> <SEP> <SEP> 205 <SEP> cylindrical section<tb> <SEP> <SEP> 206, 206 Imbalance holes<Tb> V <September> feed direction<Tb> R <September> direction of rotation<Tb> L <September> longitudinal axis<Tb> h <September> Kalottenbauhöhe<Tb> D <September> Diameter
    权利要求:
    Claims (13)
    [1]
    1. rotor part (2) of a high-pressure cleaning cutter (0) which is rotatable by means of water pressure about its longitudinal axis (L) on a stator (1), wherein the rotor part (2) has a Statoraussparung (203) from a connection side (200) starting , which in at least one drive nozzle channel (2031) opens, so that the rotor part (2) upon pressurization by the recoil emerging water from the at least one drive nozzle channel (2013) rotatable in a rotational direction (R) and in a feed direction (V) can be driven, by mechanical action of the surface of the rotor part (2) on deposits in pipes and / or channels a cleaning effect can be achieved, characterized in thatthe rotor part (2)is integrally formed in the form of a spherical cap (20), wherein on the ball surface (202) at least one groove (204) with a Nutenschneidkante (2040) from a connection side (200) to a Polseite (201) of the spherical cap (20) arranged to extend is, so that the at least one Nutenschneidkante (2040) is used in operation as a milling edge, which acts on deposits.
    [2]
    2. rotor part (2) of a high-pressure cleaning mill (0) according to claim 1, wherein the grooves (204) spirally from the connection side (200) to the pole side (201) extending into the ball surface (202) of the spherical cap (20) introduced, preferably milled, are.
    [3]
    3. rotor part (2) of a high-pressure cleaning mill (0) according to any one of the preceding claims, wherein at least six mutually separated grooves (204) are introduced.
    [4]
    4. rotor part (2) of a high-pressure cleaning cutter (0) according to one of the preceding claims, wherein the spherical cap (20) has a flattening in the region of the connection side (200) such that the ratio of a Kalottenbauhöhe (h) to the maximum diameter (D) of Ball segment body is greater than 0.7.
    [5]
    5. rotor part (2) of a high-pressure cleaning cutter (0) according to one of the preceding claims, wherein at least one, the spherical cap (20) at least partially crossing the brake channel (2033) is introduced, which is oriented such that the recoil of a producible brake beam, a reduction of Rotation speed of the rotor part (2) causes.
    [6]
    6. Rotor part (2) of a high-pressure cleaning mill (0) according to claim 5, wherein at least one supply channel (2032) is introduced into the spherical cap (20), which opens into the at least one drive nozzle channel (2031) and the at least one brake channel (2033), whereby water on the channels (2031, 2033) is divisible.
    [7]
    7. rotor part (2) of a high-pressure cleaning cutter (0) according to claim 5 or 6, wherein the supply channel (2032) is provided on the ball surface side with a blind plug and the at least one drive nozzle channel (2031) and the at least one brake channel (2033) is provided with a nozzle insert ,
    [8]
    8. rotor part (2) of a high-pressure cleaning cutter (0) according to any one of claims 6 or 7, wherein three supply channels (2032) are provided, which are distributed along the circumference of the spherical cap (20) and each in a drive nozzle channel (2031) and a brake channel (2033) open, so that a total of three supply channels (2032), three drive nozzle channel (2031) and three brake channels (2033), the spherical cap (20) are arranged partially crossing.
    [9]
    9. rotor part (2) of a high-pressure cleaning cutter (0) according to one of the preceding claims, wherein the spherical cap (20) with an imbalance, preferably by attaching at least one imbalance bore (206) equipped.
    [10]
    10. rotor part (2) of a high-pressure cleaning milling machine (0) according to claim 9, wherein two unbalance holes (206, 206) in each case as a blind hole from the connection side (200) in the direction Polseite (201) are arranged to extend.
    [11]
    11. rotor part (2) of a high-pressure cleaning cutter (0) according to one of the preceding claims, wherein in the region of the pole side (201) from the connection side (200) directed away Spülkanal (2034) is arranged, from which a flushing jet angled to the longitudinal axis (L ) is deliverable.
    [12]
    12. rotor part (2) of a high pressure cleaning cutter (0) according to any one of the preceding claims, wherein a cylindrical portion (205) in the region of an equatorial line of the spherical cap (20) is provided.
    [13]
    13. High-pressure cleaning cutter (0), comprising a rotor part (2) according to one of the preceding claims.
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    同族专利:
    公开号 | 公开日
    CH710535B1|2018-06-29|
    DE202015106761U1|2016-03-07|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    WO2018234293A2|2017-06-19|2018-12-27|protectismundi GmbH|Method and device for producing a rotating hollow jet|
    法律状态:
    2020-10-15| PFA| Name/firm changed|Owner name: ENZ TECHNIK AG, CH Free format text: FORMER OWNER: ENZ TECHNIK AG, CH |
    2020-10-30| NV| New agent|Representative=s name: PRINS INTELLECTUAL PROPERTY AG, CH |
    优先权:
    申请号 | 申请日 | 专利标题
    CH01974/14A|CH710535B1|2014-12-18|2014-12-18|Rotor part for a high-pressure cleaning machine.|CH01974/14A| CH710535B1|2014-12-18|2014-12-18|Rotor part for a high-pressure cleaning machine.|
    DE202015106761.5U| DE202015106761U1|2014-12-18|2015-12-11|High-pressure cleaning milling machine|
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