• 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:
    Spring pressure brake with electromagnetic release in the form of a triangular brake with multiple circuits. Spring pressure brake with electromagnetic release for incorporation into a machine wall or similar with a brake rotor that can be moved axially with continuous friction linings on both sides (ie left and right), presenting the brake at spring pressure (br) a bobbin case and several anchor discs associated with the bobbin case and pressing the brake rotor to achieve the braking effect on one side (left) against the machine wall or similar and with the other side (right) against the anchor discs, where the spring pressure brake has a bobbin holder with a triangular base cross section and three anchor discs are associated with the bobbin holder. (Machine-translation by Google Translate, not legally binding)
    公开号:ES2613327A2
    申请号:ES201631497
    申请日:2016-11-22
    公开日:2017-05-23
    发明作者:Günther Klingler；Ludwig Braun；Christoph Dropmann；Josef Eisenburger；Michael Fichtl
    申请人:Chr Mayr GmbH and Co KG；
    IPC主号:
    专利说明:

    Spring pressure brake with electromagnetic release in the form of a triangular brake with multiple circuits
    In the field of elevator technology, in crane technology and in the field of vertical movement axes, spring-loaded brakes with electromagnetic unlocking have been established for the deceleration and stop of the corresponding drives.
    Such braking systems must be configured redundantly for safety reasons, which can be achieved by incorporating several individual brakes with in each case only one brake circuit or by incorporating only one brake with several internal brake circuits. to the drives.
    In this regard, it is common for each of the brake circuits present to contribute in the same way to the total braking torque of the brake. In this regard, in terms of redundancy requirements, it is sufficient that in the event of a breakdown of a brake circuit 100% of the torque required for the deceleration and stop of the drive still occurs.
    The object of the invention set forth in this case is an improved spring pressure brake with several internal brake circuits according to the preamble of the main claim.
    A spring pressure brake is known from the state of the art, as disclosed in DE 10 2005 022 898 A1 as a so-called segmented brake. In this regard, a spring-loaded brake with electromagnetic release is described for incorporation into a machine wall, which is composed of two bobbin holders designed essentially with a rectangular shape and two anchor discs associated with the two bobbin holders and also essentially configured with rectangular shape. In this regard, the braking effect is achieved because a rotor connected with torsion resistance and axially movable with a shaft is held by the force of springs between the anchoring discs and a machine wall.
    To release the brake, colloquially also called unlocking, current is applied to the magnetic coils of the bobbin holder, thereby pulling the anchoring discs into
    against the force of the coil holder springs.
    The reduced number of brake circuits is disadvantageous in this spring pressure brake according to the state of the art.
    By means of the two brake circuits present in this brake, the brake achieves a braking torque of 200% of the torque required for deceleration and stopping of the drive during normal operation. Therefore, in the case of a breakdown of a brake circuit there is 100% of the required brake torque. In this sense, the design of all the machine components has to take into account the maximum braking torque that occurs of 200%, which results in partly heavier and more complex constructions.
    Therefore, in the case of an emergency stop, for example the users of an elevator are exposed to very high acceleration forces. In addition, the brake according to the state of the known prior art requires, due to the two bobbin holders present a relatively high handling and mounting effort: two bobbin holders have to be mounted with in each case several fasteners to the machine wall and adjusted.
    A refinement of the spring pressure brake discussed above is known from DE 10 2006 016 434 A1. This brake also has two brake circuits, although the bobbin holder designed essentially with a rectangular cross section is made in one piece and is also equipped with two rectangular anchor discs.
    By means of the construction mode disclosed in this document, the handling and assembly effort of the brake can be considerably reduced, that is, only the incorporation and regulation of a bobbin holder is required. However, this brake also has only two brake circuits, so that in this case also during normal operation in the case of proper operation of both brake circuits, 200% of the torque required for deceleration is available and drive stop. That is to say, also in this case all the components of the corresponding installation must be designed for this overheating of the braking torque up to 200%, with all known disadvantages.
    Moreover, an additional spring pressure brake in the form of a so-called four-segment brake is known from EP 2 201 260 B1. In this sense, a brake is disclosed, which has a preferably square bobbin holder with four individual coils arranged therein, a square anchor disk being associated with each individual coil. In this way, the brake can be designed in such a way that in the case of a correct operation of the four brake circuits 133% of the torque required for the deceleration and stop of the drive is available and in such a way that, consequently , the brake still produces 100% of the braking torque in the event of a brake circuit breakdown.
    In this way, on the one hand it is possible to construct the brake as such with a smaller size, and on the other hand the other components of the installation can be designed for smaller braking loads and thereby be carried out in a lighter and more economical way.
    In the so-called four-segment brake, the high number of parts to be manufactured in a partially complicated manner and the increased effort associated with it for handling and mounting the brake are disadvantageous. Since the operation of each brake circuit must also be monitored in the multi-circuit brakes by detecting the elevation of the anchor discs individually through microswitches, four microswitches must be installed correspondingly in the four-segment brake. and connect them to the customer's control, which means a considerable effort on the part of the manufacturer and the brake user.
    Accordingly, the objective of the present invention is to provide a spring-loaded brake with electromagnetic unlocking with multiple circuits, which, with respect to the spring-loaded brakes according to the prior art, meets the following additional requirements profile:
    - Compact and simple brake construction with few functional parts.
    - Economic manufacture of the brake and its components.
    - Robust realization of the brake.
    - Sufficient number of brake circuits for a reduced over lift of the maximum braking torque.
    - Simple handling and simple brake installation at the location of the
    client.
    This objective profile is achieved by a spring-loaded brake with electromagnetic release with the characteristics of claim 1.
    Accordingly, it is proposed to perform the spring pressure brake in such a way that the bobbin holder essentially has the shape of a triangle. In addition, it is proposed that the magnetic coils are preferably made in a round manner and are arranged in the area of the corners of the triangle. Finally, it is proposed that an anchor disk with a preferably round shape be associated with each magnetic coil.
    In this way, a spring pressure brake with electromagnetic release with three brake circuits is generated, which with respect to the design of the braking torques during normal operation and in the case of a breakdown of a brake circuit presents, with a 150% proportion to 100%, only a relatively small over-rise of the braking torque.
    With respect to the technical effort for manufacturing, handling and incorporation, with the brake there are also clear advantages compared to the prior art.
    By means of the triangular shape of the bobbin holder, the brake can be constructed in a clearly more compact, lightweight and using fewer resources than in the systems exposed according to the prior art.
    Above all, by means of the possibility of incorporating the bobbin holder to a machine wall in a statically determined way by fixing it through three points that are in the area of the corners of the bobbin holder, the manipulation and incorporation of the brake are essentially simplified .
    By means of the presence of three brake circuits only the movements of three anchoring discs have to be monitored and evaluated, for which only three sensors have to be incorporated, regulated and connected to the user's control.
    In addition, there is the possibility of adapting the external contours of the bobbin holder and the three anchoring discs such that the anchoring discs can be made as simple rotating parts. Correspondingly, the three magnetic coils can be provided geometrically in a round, preferably circular, embodiment.
    It can be summarized that by means of the construction mode described briefly in the present document of the spring-loaded brake according to the invention a brake is exposed, which has an over-elevation of the only reduced torque with clear advantages over the state of the art with respect to manufacturing, handling and incorporation.
    Additional particularities and advantageous details of the spring pressure brake according to the invention are obtained from the description of the preferred embodiments shown below.
    It shows:
    Figure 1 the perspective representation of a drive motor with a built-in spring-loaded brake
    Figure 2 an exploded perspective representation of the drive motor with the spring-loaded brake according to the invention
    figure 3 a front view of the drive of figure 1
    figure 4 a longitudinal section A-A through the brake drive of figure 3
    Figure 5 a longitudinal section B-B through the brake drive of Figure 3
    figure 6 a detail view B of the longitudinal section B-B of figure 5
    figure 7 a view C of figure 3
    Figure 8 shows a detailed view D of view C of Figure 7.
    Figure 1 shows the basic construction of the spring pressure brake (BR) according to the invention as well as its incorporation into the front wall (6) of a motor (M). Therefore, the spring pressure brake (BR) is concentrically incorporated with respect to the axis of rotation (R) of the motor (M) to the machine wall (6), the brake bobbin holder (1) being attached ( BR) through separating bushings (4) and screws (5) firmly with the motor (M).
    Three anchoring discs (2) are associated to the bobbin holder (1), which are mounted axially mobile in relation to the bobbin holder (1) but with torsional resistance. Between the anchoring discs (2) and the complementary friction surface (6) is a brake rotor (3), which on the flat surfaces directed towards the bobbin case
    (1) and the machine wall (6) is equipped with annular friction linings (3.1). On the side directed in the opposite direction to the motor (M) of the bobbin holder are three manual unlocking levers (7), which are operatively linked with the three anchoring discs (2) of the spring pressure brake (BR).
    Additional details of the spring pressure brake (BR) according to the invention can be seen in the exploded representation of Figure 2. In this regard, the spring pressure brake (BR) is represented in a state, in which it is removed from the motor (M) and in which the brake rotor (3) is removed from the motor shaft (8).
    In this regard, the spring pressure brake (BR) shown is composed of a bobbin holder (1) and three anchoring discs (2), which are advantageously made as mostly circular discs. The anchoring discs are guided on the guide bolts (9) pressurized into bobbin holder bores (1) with torsion resistance and axially movable on the bobbin case (1). On the front side of the spring pressure brake (BR), the three manual unlocking levers (7), which act in conjunction with the anchoring discs (2) through braces (7.1) provided with nuts (7.2) are shown again. ).
    The brake rotor (3) is equipped on both sides with friction linings (3.1) and is engaged through the rotor teeth (3.2) with the shaft teeth (8.1) of the motor shaft (8), so that The brake rotor (3) is mounted with torsion resistance and axially movable on the motor shaft (8).
    Figure 3 shows a front view of the motor (M), in which the concentric incorporation of the spring pressure brake (BR) to the machine wall (6) as well as the arrangement of the three manual release levers can be clearly seen. (7) on the bobbin holder (1).
    In Figure 4 a first longitudinal section AA is shown through the spring pressure brake (BR) of Figure 3. From this it can be seen the incorporation of the bobbin holder (1) of the spring pressure brake (BR) a the machine wall (6) through spacer bushes (4) and screws (5). In addition, compression springs can be seen
    (10) found in axial perforations of the bobbin holder (1) as well as the magnetic coils (1.1) inserted in axial recesses of the bobbin holder (1). Through the guide bolts (9), the three anchoring discs (2) are connected to the torsion-resistant bobbin holder and axially movable. Between the anchoring discs (2) and the machine wall (6) is the brake rotor (3) equipped on both sides with friction linings
    (3.1) and mounted on the toothed shaft (8.1) with torsion resistance as well as axially movable.
    In the decelerated state of the motor (M), the force of the compression springs (10) acts on the anchoring discs (2) and thus holds the brake rotor (3) between the anchoring discs
    (2) and the machine wall (6). In this regard, no current flows through the magnetic coils (1.1) in the bobbin holder (1). To release the spring pressure brake (BR), an electric voltage is applied to the magnetic coils (1.1) embedded in the bobbin holder (1), thereby generating a magnetic field, which pulls the anchoring discs (2) against the force of compression springs (10). Consequently, the motor shaft (8) with the brake rotor (3) can be freely rotated.
    According to an exemplary embodiment, three groups of annular magnetic coils (1.1) are arranged in the bobbin holder (1), these groups being composed of in each case at least two individual coils.
    According to another embodiment, the braking torque of the spring pressure brake (BR) can be adjusted by varying the axial pretension of the compression springs (10) and / or by varying the number of compression springs (10)
    Figure 5 shows an additional longitudinal section B-B through the spring pressure brake (BR) according to the invention of Figure 3. In this figure two additional technical characteristics of the brake can be observed:
    - First of all, the manual unlocking device must be mentioned, whose objective is, by manual action, to move the anchoring discs (2) against the force of the compression springs (10) and thereby allow a free rotation of the rotor of brake (3) and of the motor shaft (8) associated with it. This function is mainly used in the case of a power failure. In this regard, the manual unlocking device is composed of a screw-shaped shoulder strap (7.1), which passes through the manual unlocking lever (7), the bobbin holder (1), in each case an anchoring disk (2) and the support ring (7.5), and is secured with a nut (7.2) on the rear side of the manual release lever (7).
    Between the manual release lever (7) and the bobbin holder (1) are inserted in depressions (7.6) rolling bodies (7.4) in the form of balls, which during normal operation of the spring pressure brake (BR) are kept engaged by a retention spring (7.3). In the case of a twisting of the manual unlocking lever (7) around the longitudinal axis of the tie rod (7.1), the rolling bodies (7.4) slide out of the depressions (7.6) of the manual unlocking lever (7). In this way, the manual release lever (7) and the nut (7.2) carry out an axial movement against the force of the retaining spring (7.3) with the rod (7.1) and ultimately cause it through the support ring (7.5) a movement of the anchor disk (2) against the force of the compression springs (10), until the brake rotor (3) is discharged and can rotate freely with the motor shaft ( 8).
    - In addition, the spring pressure brake (BR) described is equipped with a sound attenuation unit, whose spatial situation is deduced from detail B in Figure 5.
    Figure 6 shows this detail B in an enlarged manner. Therefore, the sound attenuation unit (11) is composed of an axially threaded stud (11.1) in the bobbin holder (1) and a locknut (11.2) associated with the latter, requesting the stud (11.1) with its associated end An elastomeric ring (11.4) as well as a concentric damping plate (11.5) with respect to it is attached to the anchoring disc (2) through a pressure disc (11.3).
    The two concentric damping elements, that is, the elastomeric ring (11.4) and the damping plate (11.5) can be adjusted in the axial direction by means of the stud
    (11.1) in such a way that they are in contact with the anchoring disc (2) permanently or only when the spring pressure brake (BR) is released. By adapting the axial position of the damping elements through the studs (11.1) as well as by adapting the thickness and / or hardness of the damping elements, the spring pressure brake (BR) can be optimally damped ) in terms of noise when released and / or applied.
    In Figure 7, in the design of the view C, the spatial situation of a sensor (12) arranged in a recess of the bobbin holder (1) can be observed, whose objective is to detect the axial situation of the anchoring disc (2) with respect to the bobbin holder
    (1) and therefore the loose or applied state of the spring pressure brake (BR) and notify it to a supervision unit not shown in more detail.
    The sensor (12) can be realized, as shown, as a mechanical switch with a switch pusher (12.1), which registers, through a set screw (12.2) with locknut (12.3) attached to the anchoring disk (2), the axial movement of the anchor disk (2).
    Likewise, the sensor can be made as a contactless proximity switch, the regulation of which can take place by adjusting through the set screw (12.2) represented or by an axial displacement of the sensor position (12) with respect to the disc of anchor (2). List of reference signs:
    1 bobbin holder 1.1 magnetic coil
    2 anchor disk
    3 brake rotor 3.1 friction lining
    3.2 rotor gear 4 spacer bushing 5 screw 6 machine wall 7 manual release lever 7.1 brace
    7.2 nut
    7.3 retention spring
    7.4 rolling body
    7.5 support ring
    7.6 depression 8 motor tree
    8.1 Tree gear 9 guide bolts 10 compression spring 11 sound attenuation unit
    11.1 stud 11.2 locknut
    11.3 pressure disc
    5 11.4 11.5elastomeric ring damping plate
    12 sensor
    10 12.1switch pusher
    12.2 set screw
    fifteen 12.3 BRspring lock brake nut
    M engine
    twenty Raxis of rotation
    权利要求:
    Claims (12)
    [1]
    one. Spring press brake (BR) with electromagnetic release for incorporation into a machine wall or similar with a brake rotor (3) that can move axially with continuous friction linings (3.1) on both sides (i.e. left and right), presenting the spring-loaded brake (BR) a bobbin holder (1) and several anchoring disks (2) associated to the bobbin holder (1) and pressing the brake rotor (3) to achieve the braking effect on one side (left) against the machine wall (8) or similar and with the other side (right) against the anchoring discs (2), characterized in that the spring-loaded brake (BR) has a bobbin holder (1 ) with a triangular base cross section and because three anchoring discs (2) are associated with the bobbin holder (1).
    [2]
    2. Spring pressure brake (BR) according to claim 1, characterized in that three annular magnetic coils (1.1) are arranged in the bobbin holder (1).
    [3]
    3. Spring pressure brake (BR) according to claim 1, characterized in that three groups of annular magnetic coils (1.1) are arranged in the bobbin holder (1), these groups being composed of at least two individual coils in each case.
    [4]
    Four. Spring pressure brake (BR) according to at least one of the preceding claims, characterized in that the anchoring discs (2) have a round base geometry.
    [5]
    5. Spring pressure brake (BR) according to at least one of the preceding claims, characterized in that the anchoring discs (2) can be moved individually by means of manual unlocking levers (7) operated manually against the force of the compression springs (10) to release the spring pressure brake.
    [6]
    6. Spring pressure brake (BR) according to at least one of the preceding claims, characterized in that the lifting movement of each anchor disk (2) is recorded by a sensor (12).
    [7]
    7. Spring pressure brake (BR) according to at least one of the claims
    above, characterized in that the lifting movements of the anchoring discs (2) are recorded by mechanical switches.
    [8]
    8. Spring pressure brake (BR) according to at least one of the preceding claims, characterized in that the lifting movements of the anchoring discs (2) are recorded by contactless switches.
    [9]
    9. Spring pressure brake (BR) according to at least one of the preceding claims, characterized in that the impact noises of the anchoring discs (2) on the bobbin holder (1) and / or the brake rotor (3) are attenuated .
    [10]
    10. Spring pressure brake (BR) according to at least one of the preceding claims, characterized in that elastomeric rings (11.4) and / or damping plates (11.5) are used to attenuate the impact noise of the anchor discs (2). .
    [11]
    eleven. Spring pressure brake (BR) according to at least one of the preceding claims, characterized in that the axial pretension of the elastomeric rings
    (11.4) and / or the damping plates (11.5) is made adjustable.
    [12]
    12. Spring pressure brake (BR) according to at least one of the preceding claims, characterized in that the brake torque of the spring pressure brake (BR) can be adjusted by varying the axial pretension of the compression springs ( 10) and / or by varying the number of compression springs (10).
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    同族专利:
    公开号 | 公开日
    DE102016121313A1|2017-05-24|
    ES2613327B1|2018-01-15|
    ES2613327R1|2017-06-02|
    CN106763323B|2020-08-04|
    DE202015106367U1|2017-02-24|
    CN106763323A|2017-05-31|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    US2368317A|1942-09-16|1945-01-30|George J Meyer|Motor brake adjusting means|
    US2756846A|1952-01-30|1956-07-31|Tourneau Robert G Le|Adjustment for electrically controlled brake unit|
    US3470987A|1967-12-26|1969-10-07|Warner Electric Brake & Clutch|Magnetically released friction brake|
    US3735843A|1971-09-10|1973-05-29|Littell F J Machine Co Chicago|Disc brake structure|
    JPS58184328A|1982-04-21|1983-10-27|Tsubakimoto Chain Co|Non-excitation operation type electromagnetic brake|
    US4496922A|1983-12-05|1985-01-29|Warner Electric Brake & Clutch Company|Electromagnetically released coupling|
    DE3424595C2|1984-07-04|1992-12-03|Ortlinghaus-Werke Gmbh, 5632 Wermelskirchen, De|
    DE29510246U1|1995-06-23|1995-08-24|Mayr Christian Gmbh & Co Kg|Electrically operated brake, in particular friction brake|
    DE19814078C5|1998-03-30|2009-03-26|Ziehl-Abegg Ag|Electromagnetic spring pressure brake|
    DE19834093C2|1998-07-29|2000-09-07|Brinkmann Gmbh & Co Kg|Electromagnetically ventilated spring pressure brake|
    DE19922251A1|1999-05-14|2000-11-16|Mayr Christian Gmbh & Co Kg|Optical sensor for determination of the position of the anchor plate of an electromagnetically activated compression spring brake, where an applied current ensures the brake is off, with a reflector used to indicate brake position|
    DE10006255A1|2000-02-11|2001-08-16|Mayr Christian Gmbh & Co Kg|Electromagnetic safety brake for machine element has annular brake pad carrier secured to end face of drive disc facing braked machine element to fit radially into gap between latter and armature disc |
    US6439355B1|2000-12-18|2002-08-27|The Hilliard Corporation|Electromagnetic spring-actuated brake system|
    DE202004014088U1|2004-09-10|2004-11-18|Chr. Mayr Gmbh + Co Kg|Damping plate for braking of friction lining especially in spring pressure brake has air gap which during braking is reduced and in extreme cases reduced to zero so that first and second damping plates are in contact|
    FR2884572B1|2005-04-19|2007-05-25|Warner Electric Europ S A S So|DEVICE FOR BRAKING A ROTATING SHAFT OF A DRIVE SOURCE, SUCH AS AN ELECTRIC MOTOR|
    DE102005022898A1|2005-05-18|2006-11-23|Chr. Mayr Gmbh + Co Kg|Arrangement of spring pressure operated brakes, comprises friction coatings at both sides of rotating element|
    DE102006016434A1|2006-04-07|2007-10-11|Chr. Mayr Gmbh & Co. Kg|Square brake|
    DE202007014518U1|2007-10-17|2007-12-20|Chr. Mayr Gmbh + Co. Kg|Four-segment brake|
    ES2362332B1|2009-12-18|2012-02-13|Luis Alzola Elizondo|SEQUENTIAL ELECTROMAGNETIC BRAKE FOR ELEVATORS.|
    JP5472126B2|2011-01-07|2014-04-16|株式会社安川電機|Electromagnetic brakes, rotating electrical machines and elevators|
    CN102767582A|2012-07-05|2012-11-07|成都瑞迪机械实业有限公司|Manual release type high torque electromagnetic brake|
    CN104370238A|2014-11-26|2015-02-25|成都瑞迪机械实业有限公司|Disc brake|
    US20170363163A1|2015-01-09|2017-12-21|Thyssenkrupp Elevator Ag|Sequential electromechanical brake with advanced emergency tripping|EP3638917B1|2017-06-15|2021-04-07|Warner Electric Europe S.A.S|Device for braking a rotary shaft|
    法律状态:
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    优先权:
    申请号 | 申请日 | 专利标题
    DE202015106367|2015-11-23|
    DE202015106367.9U|DE202015106367U1|2015-11-23|2015-11-23|Electromagnetically releasing spring-loaded brake in the form of a multi-circuit triangular brake|
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