• 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:
    The invention relates to a brake pad holder (1) for a rail vehicle, comprising at least one locking device (7) and a slide rail (9) running in the direction of a brake pad holder longitudinal axis (8) for receiving a brake pad. In order to provide advantageous design conditions, it is proposed that the locking device (7) has an eccentric shaft (10) with an eccentric (2) arranged on a first end face, a bushing (12) connected to the brake pad holder (1) and a spring (13). wherein the eccentric shaft (10) is guided in the bush (12) in a manner and the spring (13) is coaxial with the eccentric shaft (10) in a manner that the eccentric (2) forces against the brake pad and the Brake pad holder (1) exercises. The eccentric shaft (10), due to its mobility in the direction of an eccentric shaft longitudinal axis (20) against the restoring action of the spring (13) allows a distance compensation between the brake pad and the brake pad holder (1). Thereby the e.g. influenced by different thermal expansions of these two components game between the brake pad and the brake pad holder (1) reduced. As a result, wear and damage to a friction braking system and disturbing noise emissions are reduced.
    公开号:AT518751A1
    申请号:T50349/2016
    申请日:2016-04-19
    公开日:2017-12-15
    发明作者:Ing Dr Gerhild Schinagl Dipl；Ing Rüdiger Zenz Dipl
    申请人:Siemens Ag Österreich；
    IPC主号:
    专利说明:

    Brake pad holder for a rail vehicle
    The invention relates to a brake pad holder for a rail vehicle, with at least one
    Locking device and a running in the direction of a brake pad holder longitudinal axis slide rail for receiving a brake pad.
    Brake pads for rail vehicles must securely lock brake pads, i. protect against unintentional movements as well as loss. For this reason, locking devices are used.
    In addition to a corresponding level of safety, these must enable rapid replacement of brake linings over a long service life and be resistant to mechanical and thermal stresses or wear and other environmental influences.
    Individual components must be easily and quickly exchanged during maintenance and servicing. Furthermore, a locking device is to be able to compensate for a play between the brake pad and the brake pad holder even under the effect of thermal expansions, etc.
    In the prior art, for example, EP 2 587 086 B1 describes a locking device of a brake pad holder for a rail vehicle. The brake pad holder includes a slide rail with a dovetail portion in which a brake pad can be locked.
    On the brake pad holder in the region of the slide rail or on a bolt vertically aligned elastic means are arranged, which exert a vertical force on the brake pad to block it in the slide rail.
    The bolt is inserted in a lower portion of the brake pad holder in a transverse to a brake pad holder longitudinal axis extending guide rail and there is a locking of the brake pad due to a vertical force of the bolt on the brake pad. The latch and the guide rail are e.g. wedge-shaped.
    Said approach has in its known form the disadvantage that a tool is required for the introduction of the bolt in the guide rail.
    Furthermore, the vertically oriented, elastic means are particularly heavily loaded by the vertical components of contact forces between the brake pad and a brake disc.
    Furthermore, the elastic means are thermally heavily loaded by their arrangement in close proximity to the brake pad.
    The invention is therefore based on the object to provide a comparison with the prior art improved brake pad holder.
    According to the invention this object is achieved with a brake pad holder of the type mentioned, in which the locking device comprises an eccentric shaft with a arranged on a first face eccentric, connected to the brake pad holder and a spring, wherein the eccentric shaft is guided in a manner in the socket and the spring is arranged coaxially with the eccentric shaft in a manner such that the eccentric exerts forces against the brake pad and the brake pad holder.
    The eccentric shaft allows due to their mobility in the direction of an eccentric shaft longitudinal axis against the restoring effect of the spring an advantageous distance compensation between the brake pad and the brake pad holder. Thereby the e.g. influenced by different thermal expansions of these two components game between the brake pad and the brake pad holder reduced. Consequently, wear and damage to one
    Friction brake system and disturbing noise emissions reduced in a favorable manner.
    Furthermore, no tools are required for locking and releasing the locking device.
    An advantageous embodiment is obtained if a helical groove is formed on the lateral surface of the eccentric shaft, and if a helical profile is provided as a counter contour to the helical groove on the inner circumferential surface of the socket.
    This measure causes a self-locking effect of the eccentric shaft in the socket due to the frictional contact between the helical groove and the helical profile. The movement in connection with the locking and releasing the locking device is characterized kinematically defined and unintentional movements of the eccentric shaft in the direction of the eccentric shaft longitudinal axis are difficult.
    It is advantageous if the locking device comprises a low-wear sliding block and that for the
    Recording a slotted guide is provided when the sliding block has a bearing surface on which in a locked state of
    Locking device of the brake pad is applied when the sliding block has a contact surface on which in a locked state of the locking device of
    Exzenter rests, and when the sliding block has a recess into which engages in a locked state of the locking device of the eccentric.
    This measure reduces problems due to mechanical and thermal stresses as well as wear of the locking device. The sliding block is designed as the compared to the eccentric and the eccentric shaft more mechanically and thermally loaded component made of a low-wear material and can be replaced quickly and inexpensively due to its design and its arrangement on the brake pad holder without much effort. The frequency of a complete replacement of the locking device is reduced.
    An advantageous solution is obtained when the brake pad is inserted into the slide rail when the sliding block is inserted with side surfaces parallel to arranged on the brake pad holder guide surfaces and with a base parallel to a arranged on the brake pad holder contact surface in the brake pad holder when the eccentric shaft in the Socket is inserted, and if the eccentric shaft so long to a
    Eccentric shaft longitudinal axis is rotated until the eccentric rests against the contact surface and engages in the recess. By this measure, the brake pad holder is locked in the slide rail. The method described is characterized by simplicity and robustness, it is for its implementation no tools required. An exchange of brake pads can be completed quickly. By guiding the eccentric shaft in the bush and the eccentric in the sliding block an encapsulation effect of said components against the environment and consequently a high resistance to contamination is further achieved.
    A high level of security against the failure of the lock and brake pad loss is on the combined effect of the restoring force of the spring, the vertical contact force between the sliding block and the brake pad, frictional forces in the contacts between the components of the locking device and the positive connection between the eccentric and the Well causes.
    Furthermore, the spring is well protected due to their arrangement on the side facing away from the brake pad side of the brake pad holder against thermal stresses due to a braking operation.
    Contact forces between the brake pad and a brake disc are transmitted via the sliding block, the eccentric and the eccentric shaft in particular to the socket, the load on the spring due to the said contact forces is low.
    The invention will be explained in more detail by means of exemplary embodiments.
    They show by way of example:
    Fig. 1: An oblique view of a first, exemplary
    Embodiment of a brake pad holder according to the invention, the front side thereof and a locking device being shown in an exploded view,
    Fig. 2: An oblique view of the first, exemplary
    Embodiment of a brake pad holder according to the invention, wherein the rear side and a locking device are shown in an exploded view,
    Fig. 3: a detail view of the first, exemplary
    Embodiment of a brake pad holder according to the invention, wherein a section of an eccentric shaft, a spring in a sectional view and a section of a bush are shown,
    Fig. 4: An elevation of a sliding block as it is used in the first exemplary embodiment, and
    Fig. 5: An oblique view of a second, exemplary
    Embodiment of an inventive
    Brake pad holder, wherein the rear side and a locking device are shown in exploded view.
    A shown in Fig. 1 oblique view of the front of a first exemplary embodiment of a brake pad holder 1 comprises a running in the direction of a Bremsbelaghalterlängsachse 8, designed as a dovetail guide rail 9, a slotted guide 23 with two mutually parallel guide surfaces 6 and a contact surface 19 and a socket 12th
    The slotted guide 23 is arranged in the lower region of the brake pad holder 1, below the slide rail 9. The guide surfaces 6 extend transversely to the slide rail 9, the contact surface 19 is aligned parallel thereto.
    The bushing 12 is likewise arranged below the slide rail 9, its longitudinal axis extending transversely to the brake pad holder longitudinal axis 8.
    The bush 12 is part of a locking device 7.
    This further comprises an eccentric shaft 10 with a cylindrical eccentric 2 and a sliding block 15. These components are shown in exploded view.
    The eccentric shaft 10 has on a first end face of the eccentric 2, on a second end face a not shown in Fig. 1, but in Fig. 3 shown flange 11. This comprises immediately adjacent to the first end face of the eccentric shaft 10, a first cylindrical part and immediately adjacent to the end face of the first cylindrical part, a second cylindrical part with a larger diameter than the first cylindrical part. The center of the second cylindrical part lies on the projection of the end face circumference of the first cylindrical part. The first cylindrical part and the second cylindrical part do not protrude beyond the projection of the end surface circumference of the eccentric shaft 10.
    On the side of the flange 11 is connected to this and about the eccentric shaft 10 and coaxially extending therefrom, a not shown in Fig. 1, but shown in Fig. 3 spring 13 is arranged. This causes a running in the direction of the Exzenterwellenlängsachse 20 spring force 22nd
    The sliding block 15 has a contact surface 16 for the application of the eccentric 2 and, parallel to its base 18, a semi-cylindrical recess 17 for the engagement of the eccentric 2. The inner shell surface of the recess 17 is congruent with the mantle surface of the eccentric second
    The recess 17 is not shown in Fig. 1, but in Fig. 4.
    Furthermore, a bearing surface 4 is provided for a brake pad on the sliding block 15.
    The sliding block 15 is made of a high-strength, wear-resistant steel. For the locking of a brake lining, not shown in Fig. 1 on the brake pad holder 1 of the brake pad is arranged with a on its back
    Dovetail profile inserted into the slide rail 9. The sliding block 15 is inserted with side surfaces 5 parallel to the arranged on the brake pad holder 1 guide surfaces 6 and with a base 18 parallel to the disposed on the brake pad holder 1 contact surface 19 and adjacent thereto in the slotted guide 23 of the brake pad holder 1.
    The support surface 4 points in the direction of the top of the brake pad holder 1, the contact surface 16 in the direction of the bottom, i. is facing the socket 12.
    The eccentric shaft 10 is inserted into the bushing 12, wherein the eccentric shaft longitudinal axis 20 is coaxial with the longitudinal axis of the bush 12. The mantle surface of the eccentric shaft 10 is congruent with the inner circumferential surface of the bush 12.
    In the course of the movement, the spring 13 applies to a correspondingly executed, shown in Fig. 2 female end face 21 and it builds up on the spring force 22.
    As soon as the first cylindrical part of the eccentric 2 is aligned with the abutment surface 16 of the sliding block 15, the eccentric shaft 10 is rotated about the eccentric shaft longitudinal axis 20 until the first cylindrical part abuts against the abutment surface 16 and the second cylindrical part engages in the recess 17 on the Sliding block engages.
    In this state, the eccentric shaft 10 is locked via the eccentric 2 in the sliding block 15. A vertical clamping force acts from the eccentric 2 forth on the support surface 4 of the sliding block 15 on the brake pad and locks it in the slide rail 9. The spring force 22 acts restoring in the direction of the Exzenterwellenlängsachse 20 and presses the eccentric 2 in the recess 17 and the base 18th of the sliding block 15 to the contact surface 19 on the brake pad holder. 1
    FIG. 2 shows an oblique view of the rear side of a first, exemplary embodiment of a brake pad holder 1 according to the invention.
    A female end face 21 is shown. Incidentally, the content of FIG. 2 corresponds to that of FIG. 1.
    3 shows a detailed view of a first, exemplary embodiment of a brake pad holder 1 according to the invention with a locking device 7 according to the invention, wherein a section of an eccentric shaft 10 with a flange 11, a spring 13 in a sectional view and a section of a bushing 12 are shown.
    The spring 13 is designed as a cylindrical helical compression spring, but other variants are conceivable according to the invention, such as e.g. Disc springs, flat springs or torsion springs in a corresponding arrangement with respect to the eccentric shaft 10th
    The spring 13 is connected to the flange 11, arranged around the eccentric shaft 10 and extends coaxially thereto.
    It is shown an assembly state in which the spring 13 bears against a bushing end face 21, is thereby compressed and generates a spring force 22.
    In the arrangement of the spring 13 shown in Fig. 3 is an advantageous solution. However, different arrangements and orientations of the spring 13 and the spring force 22 are conceivable according to the invention.
    4 shows a sliding block 15 according to the invention, as it is used for the first embodiment variant of a brake pad holder 1 according to the invention described in connection with FIGS. 1 and 2.
    The sliding block 15 is shown as an elevation with projecting side surfaces 5. It comprises on its underside a projecting abutment surface 16 projecting for an eccentric 2 shown in Figs. 1 and Fig. 2 and on its upper side a projecting bearing surface 4 for a brake pad.
    Further, a semi-cylindrical recess 17 is provided on the sliding block 15, the inner circumferential surface is congruent with the lateral surface of the eccentric 2.
    The eccentric 2 can be inserted into the recess 17 and locked so, as described in connection with FIG. 1, the sliding block 15 on the brake pad holder 1. For a shown in Fig. 5, the second embodiment of a brake pad holder 1 according to the invention, different from FIG 4, provided on the sliding block 15 no recess 17.
    5 shows a perspective view of the rear side of a second, exemplary embodiment of a brake pad holder 1 according to the invention.
    In contrast to FIG. 2, an eccentric shaft 10 has a helical groove 3 and a bush 12 has a helical profile 14. The helical groove 3 is formed on the lateral surface of the eccentric shaft 10, the helical profile 14 on the inner circumferential surface of the sleeve 12th
    A sliding block 15 does not have the recess 17 shown in Fig. 4.
    In contrast to the method described in connection with FIG. 1 for the locking of a brake pad on the brake pad holder 1, the eccentric shaft 10 is screwed into the bush 12 via a kinematically defined movement sequence based on the helical groove 3 and the helical profile 14.
    The process ends for this second, exemplary embodiment with the application of an eccentric 2 in a contact surface 16. The eccentric shaft 10 is due to the combined positive and form fit of the fit between the helical groove 3 and the helical profile 14 and due to a spring force 22 at a movement and a release of the sliding block 15 and the brake pad prevented.
    Incidentally, the illustrated principle corresponds to the embodiment variant shown in FIGS. 1 to 4.
    List of designations 1 Brake pad holder 2 Eccentric 3 Helical groove 4 Support surface 5 Side surfaces 6 Guide surfaces 7 Locking device 8 Brake pad holder longitudinal axis 9 Slide rail 10 Eccentric shaft 11 Flange 12 Bushing 13 Spring 14 Helical profile 15 Sliding block 16 Contact surface 17 Recess 18 Base 19 Contact surface 20 Eccentric shaft longitudinal axis 21 Socket end surface 22 Spring force 23 Slotted guide
    权利要求:
    Claims (6)
    [1]
    claims
    1. Brake pad holder for a rail vehicle, comprising at least one locking device and a running in the direction of a brake pad holder longitudinal slide rail for receiving a brake pad, characterized in that the locking device (7) has an eccentric shaft (10) arranged on a first end face eccentric (2) a bushing (12) connected to the brake pad holder (1) and a spring (13), the eccentric shaft (10) being guided in the bushing (12) in a manner coaxial with the spring (13) Eccentric shaft (10) is arranged, that the eccentric (2) exerts forces against the brake pad and the brake pad holder (1).
    [2]
    2. Brake pad holder according to claim 1, characterized in that on the lateral surface of the eccentric shaft (10) has a helical groove (3) is formed, and that on the inner circumferential surface of the bushing (12) a helical profile (14) as a mating contour to the helical groove (3 ) is provided.
    [3]
    3. Brake pad holder according to claim 1, characterized in that the locking device (7) comprises a low-wear sliding block (15) and that for its inclusion a slotted guide (23) is provided, that the sliding block (15) has a bearing surface (4) on which in a locked state of the locking device (7) bears the brake pad that the sliding block (15) has a contact surface (16) against which in a locked state of the locking device (7) of the eccentric (2), and that the sliding block (15 ) has a recess (17) into which in a locked state of the locking device (7) of the eccentric (2) engages.
    [4]
    4. Brake pad holder according to claim 2, characterized in that the locking device (7) comprises a low-wear sliding block (15) and that for its inclusion a slotted guide (23) is provided, that the sliding block (15) has a support surface (4) which rests in a locked state of the locking device (7) of the brake pad, and that the sliding block (15) has a contact surface (16) against which in a locked state of the locking device (7) of the eccentric (2).
    [5]
    5. A method for locking a brake pad on a brake pad holder according to claim 3, characterized in that the brake pad is inserted into the slide rail (9) that the sliding block (15) with side surfaces (5) arranged parallel to the brake pad holder (1) Guide surfaces (6) and with a base (18) parallel to a arranged on the brake pad holder (1) contact surface (19) is inserted into the brake pad holder (1) that the eccentric shaft (10) is inserted into the bushing (12), and in that the eccentric shaft (10) is rotated about an eccentric shaft longitudinal axis (20) until the eccentric (2) bears against the contact surface (16) and engages in the recess (17).
    [6]
    6. A method for locking a brake pad on a brake pad holder according to claim 4, characterized in that the brake pad is inserted into the slide rail (9), that the sliding block (15) with side surfaces (5) arranged parallel to on the brake pad holder (1) Guide surfaces (6) and with a base (18) parallel to a arranged on the brake pad holder (1) contact surface (19) is inserted into the brake pad holder (1) that the eccentric shaft (10) is inserted into the bushing (12), and in that the eccentric shaft (10) is rotated about an eccentric shaft longitudinal axis (20) until the eccentric (2) bears against the contact surface (16).
    类似技术:
    公开号 | 公开日 | 专利标题
    EP3236100B1|2020-04-01|Brake lining holder for a rail vehicle
    DE2804808A1|1979-08-09|BRAKE SHOE BRACKET FOR A PARTING DISC BRAKE, ESPECIALLY FOR MOTOR VEHICLES
    DE2510036C2|1984-07-19|Floating caliper disc brake
    DE2713360A1|1977-09-29|FLOATING CALIPER DISC BRAKE
    DE2816559C2|1986-06-19|Guide for a partially lined disc brake, in particular for motor vehicles
    WO2010086088A1|2010-08-05|Connection of a brake lining and a lining mount
    EP0640519B1|1997-06-25|Central buffer coupling for railway vehicles
    DE2707058C2|1982-06-09|Floating caliper guide for the floating caliper of a partially lined disc brake
    DE2636443A1|1977-02-17|DISC BRAKE
    DE2508070A1|1975-09-18|FLOATING CALIPER PARTIAL PAD DISC BRAKE WITH TORQUE-ABSORBING, CANTILEVER-TYPE PIN
    DE2003028A1|1970-12-23|Disc brake
    DE3014057C2|1990-12-13|
    DE102014112664A1|2016-03-03|Disc brake of a motor vehicle, brake caliper, brake pad and arrangement of at least one brake pad in a lining shaft opening of a brake caliper
    DE2705788A1|1977-08-25|Disc brake with axially movable caliper - has engaging bores with pad related clearance and caliper secured cantilever bolts
    EP0331884A1|1989-09-13|Spot-type disc brake, especially disc brake with internal caliper
    DE102012210673A1|2014-01-02|Wear-compensatory connector has free wheel mechanism that is configured to reduce relative movement between point of application and engagement point
    EP0147522B1|1988-10-26|Floating caliper disc brake
    EP1277611A1|2003-01-22|External hinge for a backrest bearing
    DE102014006954A1|2015-11-12|Guide device for a floating caliper disc brake
    DE4215195A1|1993-11-11|Elastic bearing for support arm with outer socket - has easily removed elastic element from separate bearing socket for re-using or recycling materials at end of service life
    DE102012009296B4|2016-06-16|Slide Rail
    DE7829168U1|1979-03-15|DISC BRAKE
    DE19651633C1|1998-08-06|Automatic adjustment for clutch
    DE102010043164A1|2012-05-03|Swivel module for trailer coupling, has locking element that is engaged with groove-shaped guide track which is extended on peripheral surface of locking bolt
    DE3023333A1|1982-01-14|Disc brake shoe retainer - has U=shaped brackets fixed back to back, with axial arms at ends through shoes and engaging bores in housing
    同族专利:
    公开号 | 公开日
    EP3236100A1|2017-10-25|
    EP3236100B1|2020-04-01|
    AT518751B1|2019-01-15|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    JP2009068566A|2007-09-12|2009-04-02|Akebono Brake Ind Co Ltd|Simply operated pad installing mechanism|
    JP2010078059A|2008-09-26|2010-04-08|Akebono Brake Ind Co Ltd|One-touch type pad attachment mechanism|
    DE102013011673A1|2013-07-12|2015-01-15|Knorr-Bremse Systeme für Nutzfahrzeuge GmbH|Brake pad holder of a disc brake|CN112178084A|2019-07-05|2021-01-05|克诺尔轨道车辆系统有限公司|Pad retainer for a railway vehicle brake pad carrier|JP2012057643A|2010-09-06|2012-03-22|Akebono Brake Ind Co Ltd|Pad mounting mechanism|DE102018118514A1|2018-07-31|2020-02-06|Knorr-Bremse Systeme für Schienenfahrzeuge GmbH|Brake pad holder and tool for a rail vehicle|
    CN112268081B|2020-10-26|2022-02-08|河北翔金超环保科技有限公司|Eccentric wear prevention electric hydraulic brake|
    法律状态:
    2019-09-15| PC| Change of the owner|Owner name: SIEMENS MOBILITY GMBH, AT Effective date: 20190814 |
    2021-12-15| HC| Change of the firm name or firm address|Owner name: SIEMENS MOBILITY AUSTRIA GMBH, AT Effective date: 20211108 |
    优先权:
    申请号 | 申请日 | 专利标题
    ATA50349/2016A|AT518751B1|2016-04-19|2016-04-19|Brake pad holder for a rail vehicle|ATA50349/2016A| AT518751B1|2016-04-19|2016-04-19|Brake pad holder for a rail vehicle|
    EP17164936.1A| EP3236100B1|2016-04-19|2017-04-05|Brake lining holder for a rail vehicle|
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