CN110402338B - Brake pad holder assembly, brake pad assembly, braking device and railway vehicle - Google Patents
Brake pad holder assembly, brake pad assembly, braking device and railway vehicle Download PDFInfo
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- CN110402338B CN110402338B CN201780076617.3A CN201780076617A CN110402338B CN 110402338 B CN110402338 B CN 110402338B CN 201780076617 A CN201780076617 A CN 201780076617A CN 110402338 B CN110402338 B CN 110402338B
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D55/00—Brakes with substantially-radial braking surfaces pressed together in axial direction, e.g. disc brakes
- F16D55/02—Brakes with substantially-radial braking surfaces pressed together in axial direction, e.g. disc brakes with axially-movable discs or pads pressed against axially-located rotating members
- F16D55/22—Brakes with substantially-radial braking surfaces pressed together in axial direction, e.g. disc brakes with axially-movable discs or pads pressed against axially-located rotating members by clamping an axially-located rotating disc between movable braking members, e.g. movable brake discs or brake pads
- F16D55/224—Brakes with substantially-radial braking surfaces pressed together in axial direction, e.g. disc brakes with axially-movable discs or pads pressed against axially-located rotating members by clamping an axially-located rotating disc between movable braking members, e.g. movable brake discs or brake pads with a common actuating member for the braking members
- F16D55/2245—Brakes with substantially-radial braking surfaces pressed together in axial direction, e.g. disc brakes with axially-movable discs or pads pressed against axially-located rotating members by clamping an axially-located rotating disc between movable braking members, e.g. movable brake discs or brake pads with a common actuating member for the braking members in which the common actuating member acts on two levers carrying the braking members, e.g. tong-type brakes
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D65/00—Parts or details
- F16D65/14—Actuating mechanisms for brakes; Means for initiating operation at a predetermined position
- F16D65/16—Actuating mechanisms for brakes; Means for initiating operation at a predetermined position arranged in or on the brake
- F16D65/18—Actuating mechanisms for brakes; Means for initiating operation at a predetermined position arranged in or on the brake adapted for drawing members together, e.g. for disc brakes
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D2121/00—Type of actuator operation force
- F16D2121/02—Fluid pressure
- F16D2121/04—Fluid pressure acting on a piston-type actuator, e.g. for liquid pressure
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D2125/00—Components of actuators
- F16D2125/02—Fluid-pressure mechanisms
- F16D2125/04—Cylinders
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D2125/00—Components of actuators
- F16D2125/18—Mechanical mechanisms
- F16D2125/58—Mechanical mechanisms transmitting linear movement
- F16D2125/64—Levers
Abstract
A brake lining support assembly, brake lining assembly, arresting gear and rail vehicle, brake lining support assembly includes: the brake pad holder (20), the first side of the brake pad holder (20) is provided with a mounting surface which is matched and mounted with the brake pad (10); the brake pad stop block (30) can extend into the through groove (23), two ends of the brake pad stop block (30) are located on the second side of the brake pad support (20), and the brake pad stop block (30) is provided with a first limiting position and a first avoiding position which extend into the through groove (23) to limit the movement of the brake pad (10); the anti-disengaging mechanism (40), the anti-disengaging mechanism (40) includes an anti-disengaging pin shaft (41), the anti-disengaging pin shaft (41) is movably arranged on the second side of the brake pad holder (20), the anti-disengaging pin shaft (41) has a second limiting position for blocking the movement of the brake pad stopper (30) and a second avoiding position for allowing the movement of the brake pad stopper (30), and when the anti-disengaging pin shaft (41) is located at the second limiting position, the anti-disengaging pin shaft (41) penetrates through the brake pad stopper (30) or is abutted against one side of the brake pad stopper (30) departing from the brake pad (10); the technical problem that the brake pad (10) is easy to fall off from the brake pad support (20) is solved.
Description
Technical Field
The invention relates to the technical field of rail transit vehicle braking, in particular to a brake pad support assembly, a brake pad assembly, a braking device and a rail vehicle.
Background
At present, the brake pad for the brake caliper is limited mainly by installing a rotatable brake pad stop block at the bottom of a dovetail groove of the brake pad support and locking the brake pad stop block by using an elastic snap spring. Because present track route is not complete no sediment track, the foreign matter on the track rolls over the messenger and can bounce and hit brake lining dog or dog jump ring at the wheel, leads to the brake lining dog to the inefficacy of brake lining limiting displacement to cause the brake lining to drop.
The document with the application number of CN 201410480216.2 discloses a method for assembling a brake pad holder and installing an elastic cylindrical pin in a clamping mechanism, and particularly discloses that after the brake pad is installed, a split pin is additionally installed in the cylindrical elastic pin at the rotating position of a brake pad stop block, so that interference is generated between the cylindrical elastic pin and a matching hole of the brake pad stop block, thereby inhibiting the rotation of the brake pad stop block and preventing the brake pad from loosening. The difficulty of the brake pad block rotating can be increased to a certain extent by the method, but the method depends on the interference magnitude between the cylindrical elastic pin and the brake pad block matching hole. If the interference is insufficient or under the action of larger external force, the brake pad stop block still can be forced to rotate, so that the brake pad is separated. Therefore, the brake lining support in the prior art can not effectively limit the position of the brake lining when the brake lining support is matched with the brake lining, so that the brake lining is easy to fall off from the brake lining support.
Disclosure of Invention
The invention provides a brake pad holder assembly, a brake pad assembly, a braking device and a railway vehicle, and aims to solve the technical problem that a brake pad in the prior art is easy to fall off from the brake pad holder.
According to an aspect of the present invention, there is provided a brake pad holder assembly, comprising: the brake pad support is provided with a first side and a second side which are oppositely arranged, the first side of the brake pad support is provided with an installation surface which is matched with the brake pad for installation, and the brake pad support is provided with a through groove; the brake pad stop block can extend into the through groove, two ends of the brake pad stop block are positioned on the second side of the brake pad support, the first end of the brake pad stop block is rotatably connected with the brake pad support, the second end of the brake pad stop block is detachably connected with the brake pad support, and the brake pad stop block is provided with a first limiting position which extends into the through groove to limit the movement of the brake pad and a first avoiding position which is far away from the through groove to allow the brake pad to move out; the brake lining support assembly further comprises an anti-disengaging mechanism, the anti-disengaging mechanism comprises an anti-disengaging pin shaft, the anti-disengaging pin shaft is movably arranged on the second side of the brake lining support, the anti-disengaging pin shaft is provided with a second limiting position for blocking the brake lining stop block to move and a second avoiding position for allowing the brake lining stop block to move, and when the anti-disengaging pin shaft is located at the second limiting position, the anti-disengaging pin shaft penetrates through the brake lining stop block or is abutted to one side of the brake lining deviating from the brake lining stop block.
Further, the anti-drop mechanism further comprises: the rotating matching structure is arranged on the second side of the brake pad support and connected with the anti-falling pin shaft, and the rotating matching structure can enable the anti-falling pin shaft to axially move through rotation of the central axis of the anti-falling pin shaft, so that the anti-falling pin shaft moves between the second avoiding position and the second limiting position.
Further, the rotating matching structure comprises a first tooth-shaped part and a second tooth-shaped part which are meshed with each other, the first tooth-shaped part is arranged at the first end of the anti-falling pin shaft, and the second tooth-shaped part is arranged on the brake pad support.
Further, in the first tooth profile part and the second tooth profile part, one of them includes the benchmark tooth profile unit, another includes the cooperation tooth profile unit, the benchmark tooth profile unit includes first deep tooth and shallow tooth, the axial depth of first deep tooth is greater than the axial depth of shallow tooth, the cooperation tooth profile unit includes the second deep tooth, the axial depth of the second deep tooth is greater than the axial depth of shallow tooth in the benchmark tooth profile unit in the cooperation tooth profile unit, the first deep tooth or the shallow tooth of benchmark tooth profile unit are through the second deep tooth cooperation with the cooperation tooth profile unit, make the anticreep round pin axle rotatory and lock in second limit position or the second position of dodging relative to the central line axis of anticreep round pin axle.
Furthermore, the reference tooth-shaped units comprise a plurality of groups, the matching tooth-shaped units comprise a plurality of groups, and the number of the reference tooth-shaped units is the same as that of the matching tooth-shaped units and is arranged in a one-to-one correspondence manner.
Further, the number of the reference tooth profile units is different from the number of the mating tooth profile units, and the relative position of the second deep tooth in each set of the mating tooth profile units and the corresponding reference tooth profile unit in the circumferential direction is the same.
Furthermore, the developed tooth profiles of the first deep tooth, the second deep tooth and the shallow tooth all comprise an oblique line segment and a straight line segment, and the oblique directions of the oblique line segments of the first deep tooth, the second deep tooth and the shallow tooth are the same.
Further, the developed tooth shapes of the first deep tooth, the second deep tooth and the shallow tooth are all composed of two oblique line sections.
Further, the first deep tooth and the shallow tooth are of a continuous tooth profile structure.
Further, a transition section is arranged between the first deep tooth and the shallow tooth, and/or a transition section is arranged between two adjacent groups of reference tooth-shaped units, or a transition section is arranged between two adjacent groups of matched tooth-shaped units.
Further, the anti-drop mechanism further comprises: the supporting seat is arranged on the second side of the brake pad support, the anti-falling pin shaft is arranged on the supporting seat in a penetrating mode, and the rotating matching structure is arranged between the anti-falling pin shaft and the supporting seat.
Furthermore, a threaded hole is formed in the supporting seat, a threaded section matched with the threaded hole is formed in the outer peripheral face of the anti-falling pin shaft, and the threaded hole and the threaded section form a rotary matching structure.
Further, the rotating fit structure comprises a first tooth-shaped portion and a second tooth-shaped portion which are meshed with each other, the first tooth-shaped portion is arranged at the first end of the anti-falling pin shaft, the second tooth-shaped portion is arranged on the supporting seat, and the second end of the anti-falling pin shaft penetrates through the supporting seat and extends towards the brake pad stop block.
Further, the anti-drop mechanism further comprises: the elastic piece is arranged between the supporting seat and the anti-falling pin shaft and used for applying pressure towards the direction of the second tooth-shaped part to the first tooth-shaped part.
Further, be provided with the shaft shoulder between the first end of anticreep round pin axle and the second end, the one end and the shaft shoulder butt of elastic component, the other end and the supporting seat butt of elastic component.
Further, the brake lining support assembly further comprises: the gear sleeve is sleeved at the first end of the anti-falling pin shaft, and a first tooth-shaped part is arranged on one side of the gear sleeve, which is close to the second end of the anti-falling pin shaft; the ratchet bush is arranged on the brake pad support, the second end of the anti-falling pin shaft penetrates through the ratchet bush, and a second toothed part is arranged on one side, close to the first end of the anti-falling pin shaft, of the ratchet bush.
According to another aspect of the present invention, there is provided a brake pad assembly comprising a brake pad holder assembly and a brake pad, the brake pad holder assembly being the above-mentioned brake pad holder assembly, the brake pad being detachably disposed at a first side of the brake pad holder assembly.
According to another aspect of the present invention, there is provided a brake apparatus including a brake pad holder assembly, the brake pad holder assembly being provided as described above.
Further, the braking device is a brake caliper.
According to another aspect of the present invention, there is provided a rail vehicle including a brake pad carrier assembly, the brake pad carrier assembly being provided as described above.
By adopting the brake pad support assembly provided by the invention, the brake pad stop block is firstly rotated to the first limit position to limit the brake pad to fall off from the brake pad, and then the anti-falling pin shaft is positioned at the second limit position to limit the rotation of the brake pad stop block, so that the phenomenon that the brake pad falls off from the brake pad when a vehicle runs is better avoided, the technical problem that the brake pad is easy to fall off from the brake pad support in the prior art is solved, and the reliability and the safety of the installation of the brake pad on the brake pad support are improved.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this application, illustrate embodiments of the invention and, together with the description, serve to explain the invention and not to limit the invention. In the drawings:
FIG. 1 is a schematic structural diagram of a brake pad assembly provided in accordance with an embodiment of the present invention;
FIG. 2 illustrates an exploded view of a damper blade assembly provided in accordance with an embodiment of the present invention;
FIG. 3 is a schematic structural diagram illustrating the anti-drop pin shaft provided by the embodiment of the invention in a second limiting position;
fig. 4 is a schematic structural diagram illustrating the anti-drop pin shaft provided by the embodiment of the invention when rotating from the second limiting position to the second avoiding position;
fig. 5 is a schematic structural diagram illustrating the anti-drop pin shaft about to enter a second avoidance position according to the embodiment of the invention;
fig. 6 is a schematic structural diagram illustrating the anti-drop pin shaft provided by the embodiment of the invention in a second avoidance position;
fig. 7 is a front view of an anti-slip pin according to an embodiment of the invention;
fig. 8 is a left side view of the anti-slip pin according to the embodiment of the invention;
FIG. 9 is a schematic structural diagram illustrating a rotation fit structure provided in accordance with an embodiment of the present invention;
FIG. 10 illustrates a schematic structural view of the first tooth form and the second tooth form provided in FIG. 9;
FIG. 11 is a schematic view of the engagement of the first deep tooth and the second deep tooth of FIG. 10;
FIG. 12 shows a schematic view of the meshing arrangement of the shallow teeth and the second deep teeth of FIG. 10;
FIG. 13 illustrates a schematic structural view of a first tooth form and a second tooth form provided in accordance with a further embodiment of the present invention;
FIG. 14 is a schematic structural diagram illustrating a horizontal transition section provided between two adjacent second deep teeth according to a further embodiment of the present invention;
FIG. 15 is a schematic structural diagram illustrating a horizontal transition section provided between two adjacent second deep teeth according to a further embodiment of the present invention;
FIG. 16 is a schematic view of the engagement of the second deep tooth with the first deep tooth of FIG. 15;
FIG. 17 is a schematic view of the second deep tooth meshing with the shallow tooth of FIG. 15;
FIG. 18 is a schematic view of the tooth transition of FIG. 15 engaged with a shallow tooth;
FIG. 19 illustrates a cross-sectional view of a damper blade assembly provided in accordance with an embodiment of the present invention;
FIG. 20 shows a partial enlarged view at A in FIG. 19;
FIG. 21 illustrates a front view of a brake pad assembly provided in accordance with an embodiment of the present invention;
FIG. 22 illustrates a front view of a brake pad holder provided in accordance with an embodiment of the present invention;
FIG. 23 illustrates a cross-sectional view of a brake pad holder provided in accordance with an embodiment of the present invention;
FIG. 24 is a schematic structural diagram of a brake pad holder provided in accordance with an embodiment of the present invention;
fig. 25 is a schematic structural view illustrating a braking apparatus according to an embodiment of the present invention.
Wherein the figures include the following reference numerals:
10. a brake pad; 11. clamping the boss; 20. a brake pad support; 21. a first protrusion; 22. a second protrusion; 23. a through groove; 24. a slot; 30. a brake pad stop; 31. the stop block rotates the pin; 40. an anti-drop mechanism; 41. an anti-drop pin shaft; 411. a shaft shoulder; 42. a rotation fit structure; 421. a first tooth-shaped portion; 421a, a second deep tooth; 422. a second tooth-shaped portion; 422a, a first deep tooth; 422b, shallow teeth; 423. a gear sleeve pin; 43. a supporting seat; 44. an elastic member; 45. a gasket; 50. a clamp spring; 60. an upper pin shaft; 70. an upper pin shaft gasket; 80. an upper pin shaft limiting pin; 91. a support pin; 92. a cotter pin; 93. a spring; 94. the brake pad supports the retaining sleeve; 95. and an elastic pin.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the invention, its application, or uses. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
As shown in fig. 1 to 6, the present invention provides a brake pad holder assembly, which includes: brake lining support 20, brake lining stopper 30 and anti-drop mechanism 40. The brake pads 10 are used in cooperation with a brake disc to convert a clamping force of a clamp into a braking force on a wheel axle. The brake pad holder 20 is a main body for mounting the brake pad 10, the brake pad holder 20 has a first side and a second side which are oppositely arranged, the first side of the brake pad holder 20 has a mounting surface which is matched with the brake pad 10 to be mounted, and the brake pad 10 is detachably mounted on the mounting surface. The first end and the second end of the brake pad stopper 30 are both located at the second side of the brake pad holder 20, the first end of the brake pad stopper 30 is rotatably arranged on the brake pad holder 20, the second end of the brake pad stopper 30 is detachably connected with the brake pad holder 20, the brake pad holder 20 is provided with a through groove 23, and the brake pad stopper 30 has a first limit position extending into the through groove 23 to limit the movement of the brake pad 10 and a first avoidance position far away from the through groove 23 to allow the movement of the brake pad 10. When the brake pad stopper 30 is located at the first limit position, the middle portion of the brake pad stopper 30 passes through the through slot 23 and is disposed below the brake pad 10 and abuts against the brake pad 10 to limit the movement of the brake pad 10, and when the second end of the brake pad stopper 30 rotates in a direction away from the brake pad 10 and causes the brake pad stopper 30 to exit from the through slot 23 and the brake pad 10 can be moved out of the brake pad holder 20, the brake pad stopper 30 is located at the first avoidance position. The anti-disengaging mechanism 40 includes an anti-disengaging pin 41, wherein the anti-disengaging pin 41 is movably disposed on the second side of the brake pad holder 20, the anti-disengaging pin 41 has a second limiting position for blocking the movement of the brake pad stopper 30 and a second avoiding position for allowing the movement of the brake pad stopper 30, and when the anti-disengaging pin 41 is located at the second limiting position, the anti-disengaging pin 41 passes through the brake pad stopper 30 or abuts against one side of the brake pad stopper 30 deviating from the brake pad 10.
With the brake pad holder assembly in this embodiment, the brake pad stopper 30 is rotated to the first avoiding position, and then the brake pad 10 is mounted on the mounting surface of the brake pad holder 20, at this time, the brake pad 10 is located on the first side of the brake pad holder 20, and then the brake pad stopper 30 is rotated to the first limiting position around the first end, so that the middle part of the brake pad stopper 30 passes through the through groove 23 of the brake pad holder 20 and is disposed below the brake pad 10 and abuts against the lower part of the brake pad 10, and then the anti-drop pin 41 is located at the second limiting position, so as to further limit the rotation of the brake pad stopper 30. The brake pad stopper 30 can reliably limit the position of the brake pad 10 by the anti-drop pin 41, thereby preventing the brake pad 10 from dropping off from the brake pad holder 20. Because the current track route is not a completely slag-free track, when the rail vehicle runs on the track, foreign matters on the track may bounce and hit the brake pad stopper 30 when the wheels run over, so that the brake pad stopper 30 is ineffective in limiting the brake pad 10, and the brake pad 10 falls off. And adopt the brake lining support subassembly in this embodiment, when brake lining dog 30 received the foreign matter striking or was in other unexpected circumstances, owing to there is anticreep round pin axle 41 to be located the second limit position, will make brake lining dog 30 can not take place to rotate to the phenomenon that brake lining 10 drops from brake lining support 20 has been avoided better, the brake lining 10 that has solved among the prior art easily follows the technical problem that brake lining support 20 goes up to drop, the reliability and the security that brake lining 10 installed on brake lining support 20 have been improved.
Specifically, the anti-release mechanism 40 further includes a rotation matching structure 42, the rotation matching structure 42 is disposed on the second side of the brake pad holder 20 and connected to the anti-release pin 41, and the rotation matching structure 42 enables the anti-release pin 41 to axially move through rotation around the central axis of the anti-release pin 41, so that the anti-release pin 41 has a second limiting position that blocks the brake pad block 30 from exiting from the through groove 23 and a second avoiding position that allows the brake pad block 30 to exit from the through groove 23; when the anti-falling pin 41 is located at the second limiting position, the anti-falling pin 41 can pass through the brake pad stopper 30 to limit the movement of the brake pad stopper 30, or the movement of the brake pad stopper 30 can be limited by the outer circular surface or end of the anti-falling pin 41 abutting against the side of the brake pad stopper 30 away from the brake pad 10. In this embodiment, the end of the anti-falling pin 41 abuts against the side of the brake pad block 30 away from the brake pad 10, so as to reduce the occupied space of the brake pad block 30 and make the structure more compact.
Wherein, the rotatory cooperation structure can also adopt lead screw and nut complex structure, sets up anticreep round pin axle 41 into the lead screw, and the second side of brake lining support 20 is provided with the supporting seat that has the internal thread as the nut, through the cooperation between lead screw and the nut, can realize axial displacement with anticreep round pin axle 41 through the screw rotation, and then can make this anticreep round pin axle 41 can be in the second restriction position or the second dodges the position.
As shown in fig. 2, the rotation-fitting structure 42 includes a first tooth 421 and a second tooth 422 that mesh with each other. The first tooth-shaped part 421 is arranged at the first end of the anti-release pin shaft 41, the second tooth-shaped part 422 is arranged at the second side of the brake pad holder 20, the first end of the anti-release pin shaft 41 penetrates through the second tooth-shaped part 422 and is connected with the first tooth-shaped part 421, the second end of the anti-release pin shaft 41 is used for limiting the brake pad stopper 30, the axial distance between the first tooth-shaped part 421 and the second tooth-shaped part 422 is changed through the relative rotation of the first tooth-shaped part 421 and the second tooth-shaped part 422, and therefore the axial position of the anti-release pin shaft 41 can be changed, and the anti-release pin shaft 41 moves between the second limiting position and the second avoiding position. Specifically, the first tooth-shaped portion 421 may be configured as a tooth sleeve, the second tooth-shaped portion 422 is configured as a ratchet bushing, the tooth sleeve is sleeved on the first end of the anti-drop pin shaft 41, the ratchet bushing is fixed on the support frame on the second side of the brake pad holder 20 through interference fit, and of course, the ratchet bushing may also be integrated with the support frame of the brake pad holder 20.
As shown in fig. 9, one of the first tooth 421 and the second tooth 422 includes a reference tooth unit, and the other includes a mating tooth unit. That is, it may be provided that the first tooth 421 includes a reference tooth unit, and the second tooth 422 includes a mating tooth unit; it is also possible that the first tooth 421 comprises a mating tooth unit and the second tooth 422 comprises a reference tooth unit. Specifically, the reference tooth unit includes a first deep tooth 422a and a shallow tooth 422b, and the axial depth of the first deep tooth 422a is greater than the axial depth of the shallow tooth 422 b. The matching tooth-shaped unit comprises a second deep tooth 421a, the axial depth of the second deep tooth 421a in the matching tooth-shaped unit is greater than the axial depth of the shallow tooth 422b in the reference tooth-shaped unit, and the first deep tooth 422a or the shallow tooth 422b of the reference tooth-shaped unit is matched with the second deep tooth 421a of the matching tooth-shaped unit, so that the anti-falling pin 41 rotates relative to the central axis of the anti-falling pin 41 and is locked at a second limiting position or a second avoiding position.
As shown in fig. 3 to 6 and 9 to 12, when the second deep tooth 421a rotates to the first deep tooth 422a and engages therewith, at this time, the anti-falling pin 41 is at the second limiting position, and the anti-falling pin 41 will limit the rotation of the brake pad block 30, so that the brake pad 10 and the brake pad holder 20 are reliably connected together. When the second deep tooth 421a rotates to the shallow tooth 422b and engages with the shallow tooth 422b, the anti-slip pin 41 is at the second retracted position, and the anti-slip pin 41 does not limit the rotation of the brake pad block 30, so that the brake pad 10 can be smoothly detached from the brake pad holder 20. Since the axial depth of the deep tooth along the second tooth-shaped portion 422 is greater than the axial depth of the shallow tooth along the second tooth-shaped portion 422, the axial height of the anti-drop pin 41 in the second avoidance position is higher than that in the second limit position, and the height difference between the two is just the height difference between the deep tooth and the shallow tooth.
The number of the reference tooth profile units and the number of the mating tooth profile units may be designed as required, and in the embodiment of the present invention, the number of the reference tooth profile units is the same as the number of the mating tooth profile units, and the positions of all the second deep teeth 421a relative to the reference tooth profile units are the same during the rotation. With such an arrangement, the anti-falling pin 41 can enter the second avoidance position from the second restriction position or enter the second restriction position from the second avoidance position after rotating by a certain angle, so that the operator can flexibly, easily and stably operate the anti-falling mechanism 40. Three sets of mating tooth units are annularly disposed on the first tooth 421 in this embodiment, and correspondingly three sets of reference tooth units are disposed on the second tooth 422.
Of course, the number of the reference tooth-shaped units may be different from the number of the matching tooth-shaped units, but it is required to ensure that the relative positions of the second deep teeth 421a in each group of matching tooth-shaped units and the corresponding reference tooth-shaped units are the same in the circumferential direction, so as to ensure that the anti-falling pin 41 moves stably.
In order to facilitate the relative rotation of the first tooth 421 and the second tooth 422, one sidewall of the first deep tooth 422a may be set to be linear, and the other sidewall of the first deep tooth 422a may be an arc or a diagonal segment, and at the same time, one sidewall of the shallow tooth 422b may be linear, and the other sidewall of the shallow tooth 422b may be an arc or a diagonal segment. In order to make the second deep tooth 421a and the shallow tooth 422b stably cooperate to make the anti-drop pin 41 stably located at the second avoidance position, the arc shape of the shallow tooth 422b is set to be consistent with the arc shape of the deep tooth, and the included angle between the two side walls of the shallow tooth 422b is set to be consistent with the included angle between the two side walls of the first deep tooth 422 a.
The tooth-shaped structure in this embodiment is a combination of a straight line shape and an arc shape, so that the anti-drop pin 41 can only rotate along an arc-shaped segment in the tooth-shaped structure, and the straight line shape in the tooth-shaped structure limits the rotation direction of the anti-drop pin 41 on the one hand, and on the other hand, the anti-drop pin 41 can stably maintain a second avoiding position or a second limiting position, so as to better achieve the effect of preventing the brake lining 10 from dropping by the anti-drop mechanism 40.
As shown in fig. 13, the developed tooth profiles of the first deep tooth 422a, the second deep tooth 421a, and the shallow tooth 422b may be formed by two diagonal segments. Therefore, the first tooth-shaped portion 421 can move the anti-slip pin 41 to rotate clockwise or counterclockwise, which is convenient for operation.
In order to facilitate the anti-falling pin 41 to smoothly enter the second limiting position or the second avoiding position, in this embodiment, the first deep tooth 422a and the shallow tooth 422b are connected, and the linear side wall of the shallow tooth 422b is connected with the arc-shaped side wall of the first deep tooth 422a, wherein the second deep tooth 421a is structurally matched with the first deep tooth 422 a.
Of course, it is also possible to have a transition between a first deep tooth 422a and a shallow tooth 422b and/or to provide a transition between two adjacent sets of reference tooth units, or to provide a transition between two adjacent second deep teeth 421 a. The transition section can be a horizontal section or a tooth-shaped transition section and the like. The moving mode of the anti-falling pin shaft 41 can be adjusted by arranging the transition section so as to adapt to different motion requirements. As shown in fig. 14 to 18, in a further embodiment provided by the present invention, a tooth-shaped transition section is provided between two adjacent second deep teeth 421 a. When the working process of the anti-disengaging device is changed into that the second deep tooth 421a is meshed with the first deep tooth 422a, the anti-disengaging pin shaft 41 is located at a second limiting position, the second deep tooth 421a is meshed with the shallow tooth 422b after rotating for a certain angle, and at the moment, the anti-disengaging pin shaft 41 is located at a second avoiding position; after the second deep tooth 421a continues to rotate for a certain angle, the tooth-shaped transition section thereof meshes with the shallow tooth 422b, and at this time, the anti-drop pin 41 is located between the second limiting position and the second avoiding position, and the specific position is determined according to the depth of the tooth-shaped transition section.
In this embodiment, the first tooth-shaped portion 421 (i.e., the tooth sleeve) and the second tooth-shaped portion 422 (i.e., the ratchet bushing) are both located above the brake pad stopper 30, the anti-falling pin 41 is disposed on the second side of the brake pad holder 20 along the substantially vertical direction, the first end of the anti-falling pin 41 is located above the second end, the first end of the anti-falling pin 41 is fixedly connected to the first tooth-shaped portion 421 through the tooth sleeve pin 423, when the second deep tooth 421a is engaged with the first deep tooth 422a, the second end of the anti-falling pin 41 is located at the second limit position, and when the second deep tooth 421a is engaged with the shallow tooth 422b, the second end of the anti-falling pin 41 is located at the second avoidance position. In the present embodiment, the gear sleeve pin 423 has an open pin structure, and the gear sleeve pin 423 is used for connecting the first tooth 421 and the anti-slip pin 41. The first tooth-shaped portion 421 has a first pin hole, which is a first through hole and is disposed on the first tooth-shaped portion 421 in pairs. Correspondingly, a second pin hole is also correspondingly disposed on the anti-drop pin shaft 41, and the second pin hole is a second through hole, and the second pin hole in this embodiment is radially disposed. When the anti-release mechanism 40 is installed, the first end of the anti-release pin shaft 41 first passes through the second toothed portion 422, then the first toothed portion 421 is sleeved on the first end of the anti-release pin shaft 41, and then the anti-release pin shaft 41 and the first toothed portion 421 are connected together by the toothed sleeve pin 423.
In order to fix the anti-falling mechanism 40 on the second side of the brake pad holder 20, the anti-falling mechanism 40 further includes a supporting seat 43, the supporting seat 43 is disposed on the second side of the brake pad holder 20, the anti-falling pin 41 is disposed on the supporting seat 43, and the rotation matching structure 42 is disposed between the anti-falling pin 41 and the supporting seat 43. Specifically, in the embodiment of the present invention, the supporting seat 43 is provided with a third through hole matching with the outer diameter of the second toothed portion 422, so that the second toothed portion 422 is firmly fixed on the blade holder 20. The second tooth-shaped portion 422 and the first tooth-shaped portion 421 cooperate to limit the axial position of the retaining pin 41.
In this embodiment, the anti-falling mechanism 40 further includes an elastic member 44, the elastic member 44 is disposed between the supporting seat 43 and the anti-falling pin 41, and the elastic member 44 is used for applying a pressure to the first tooth-shaped portion 421 in a direction toward the second tooth-shaped portion 422, so that the first tooth-shaped portion 421 and the second tooth-shaped portion 422 are always in a meshing contact state. The elastic member 44 in this embodiment is a spring, and the elastic force of the spring is used to ensure the constant engagement of the first tooth 421 and the second tooth 422.
As shown in fig. 19 and 20, specifically, a shoulder 411 is provided between the first end and the second end of the retaining pin 41, a spacer 45 is provided on an end surface of the shoulder 411 facing the first end of the retaining pin 41, one end of the elastic member 44 abuts against the spacer 45, and the other end of the elastic member 44 abuts against the bottom of the support base 43. The inner diameter of the spring is slightly larger than the diameter of the anti-slip pin 41, and the inner diameter of the spring is smaller than the outer diameter of the shoulder 411 to limit the position of the spring. With such an arrangement, when the anti-falling pin 41 rotates along the oblique line direction of the tooth-shaped structure (i.e. along the oblique line section direction of the first deep tooth or shallow tooth unfolding tooth shape), because both ends of the spring are not in contact with the anti-falling pin 41, the anti-falling pin 41 does not drive the spring to rotate, thereby preventing the spring from twisting. Meanwhile, the gasket 45 in this embodiment may be replaced by other similar parts such as a bearing, or the contact portion between the spring and the shoulder of the anti-falling pin 41 or the end surface of the anti-falling spring and the support seat 43 of the brake pad holder 20 may be fully lubricated, so that the gasket and the like may not be required.
In another embodiment (not shown in the figures) provided by the present invention, the rotation matching structure may also be a screw thread matching structure, specifically, a screw thread hole is provided on the supporting seat, a screw thread section matching with the screw thread hole is provided on the outer circumferential surface of the anti-drop pin shaft, and the movement of the anti-drop pin shaft can also be realized through screw thread matching.
As shown in fig. 7 and 8, the lower plane of the shoulder 411 and the upper plane of the brake pad block 30 in this embodiment are parallel, when the anti-falling pin 41 is located at the second limiting position, the lower plane of the shoulder 411 is located above the upper plane of the brake pad block 30, and is closely attached to the brake pad block 30 through the peripheral surface of the anti-falling pin 41, so that the reliability of the anti-falling pin 41 in stopping the brake pad block 30 can be improved, and the brake pad 10 is better prevented from being separated from the brake pad holder 20. Through setting up shoulder 411 can provide the support for elastic component 44 to can be under the condition of the rotatory cooperation structure 42 on anticreep round pin axle 41 upper portion became invalid, can provide vertical support for it, make anticreep round pin axle 41 be unlikely to from the landing of brake lining support 20.
Specifically, the anti-separation mechanism 40 includes a plurality of supporting seats 43, the supporting seats 43 are arranged at intervals along the vertical direction, and the anti-separation pin shaft 41 is sequentially inserted into the supporting seats 43. The anti-slip mechanism 40 may include one or more support seats 43. In order to fix the anti-slip pin 41 better to limit the movement in the axial direction, the anti-slip mechanism 40 in this embodiment has two supporting seats 43, and the two supporting seats 43 are disposed at intervals. One of the supporting bases 43 is used to fix the second toothed portion 422, and the other supporting base 43 is provided with a fourth through hole matched with the anti-falling pin 41, and the aperture of the fourth through hole should be slightly larger than the diameter of the anti-falling pin 41, so that the anti-falling pin 41 can move smoothly in the axial direction. Since the first tooth 421 is disposed at the first end of the anti-drop pin 41, the second tooth 422 cooperating with the first tooth 421 is also disposed near the first end of the anti-drop pin 41, and the supporting seat 43 for fixing the second tooth 422 is correspondingly disposed near the first end of the anti-drop pin 41. Accordingly, a support seat 43 for fixing and restraining the escape pin 41 is provided near the second end of the escape pin 41, that is, the support seat 43 for fixing the second toothed portion 422 is provided at an upper portion of the support seat 43 for fixing and restraining the escape pin 41.
As shown in fig. 21 to 23, in order to facilitate connection between the brake pad 10 and the brake pad holder 20, a locking boss 11 is provided on one side of the brake pad 10 facing the mounting surface, a slot 24 is provided on the mounting surface of the brake pad holder 20, an opening is provided on one side of the slot 24 facing the brake pad stopper 30, and the other side of the slot 24 opposite to the opening is a closed end (when viewed in the drawing direction, the top of the slot 24 is a closed end, and the lower portion of the slot 24 is an open end). The insertion groove 24 in this embodiment is an annular groove provided with an opening. When the brake pad 10 is installed on the brake pad holder 20, the clamping boss 11 enters the slot 24 from the opening and is clamped and matched with the slot 24, so that the brake pad 10 is connected with the brake pad holder 20. Then, the brake lining stopper 30 is rotated to be in the first limit position to limit the clamping boss 11 to withdraw from the opening, so as to ensure the reliable connection between the brake lining 10 and the brake lining holder 20.
Specifically, the width of the slot opening of the slot 24 is smaller than the width of the slot bottom of the slot 24, and the structural size of the clamping boss 11 is matched with that of the slot 24, so that the clamping boss 11 is tightly matched with the slot 24. In the present embodiment, the slot 24 has a dovetail groove structure.
Specifically, the brake pad assembly further includes a clamp spring 50, the clamp spring 50 is disposed between the second end of the brake pad stopper 30 and the brake pad holder 20, the clamp spring 50 is used for elastically self-locking the second end of the brake pad stopper 30 at a first limit position, so that the brake pad stopper 30 is at the first limit position extending into the through slot 23 and abutting against the lower portion of the clamping boss 11 of the brake pad 10, and the clamp spring 50 in this embodiment is a U-shaped clamp spring 50. In this embodiment, a first protrusion 21 is disposed on one side of the through groove 23 of the brake pad holder 20, a second protrusion 22 is disposed on the other side of the through groove 23 of the brake pad holder 20, a first open groove is disposed at the first protrusion 21, a second open groove is disposed at the second protrusion 22, and when the first end of the brake pad stopper 30 is located in the first open groove and the second end of the brake pad stopper 30 is located in the second open groove, the brake pad stopper 30 is located at the first limit position. To facilitate rotation of the first end of the brake pad stop 30, the brake pad holder assembly of this embodiment further includes a stop rotation pin 31. Meanwhile, a fifth through hole is formed at the first end of the brake pad block 30, and a corresponding sixth through hole is also formed in the first opening slot matched with the fifth through hole, so that the block rotating pin 31 can smoothly pass through the sixth through hole in the first opening slot to be inserted into the corresponding fifth through hole in the brake pad block 30. A seventh through hole is formed in the second end of the brake pad block 30, an eighth through hole is formed in a second opening groove matched with the seventh through hole, the seventh through hole and the eighth through hole are arranged in a staggered mode, one end of the U-shaped clamp spring 50 penetrates into the seventh through hole in the second end of the brake pad block 30, and the other end of the U-shaped clamp spring 50 penetrates into the eighth through hole in the second opening groove. The U-shaped clamp spring 50 in this embodiment has a certain elasticity, and can provide a certain locking force for the brake pad stopper 30, and can restrict the brake pad stopper 30 from rotating at will, so that the brake pad stopper 30 is located at the first restriction position, namely, in a state of extending into the through groove 23 and abutting against the lower part of the clamping boss 11 arranged at the back of the brake pad 10, thereby fixing the brake pad 10 on the brake pad holder 20.
When the brake pad 10 needs to be removed from the brake pad holder 20, after the U-shaped clamp spring 50 is twisted by a certain angle by using a conventional tool (such as a screwdriver) to allow the brake pad stopper 30 to leave the first limiting position, the brake pad stopper 30 can be withdrawn from the through groove 23, and the clamping boss 11 of the brake pad 10 can be withdrawn from the slot 24.
When the brake pad stopper 30 is in the first retracted position, the U-shaped clamp spring 50 can limit the rotation range of the brake pad stopper 30, so that the clamping boss 11 of the brake pad 10 can be withdrawn from the slot 24. When the brake pad block 30 is at the first limit position, the brake pad block 30 may provide a certain locking force to prevent the brake pad block 30 from being rotated arbitrarily.
In this embodiment, the brake pad carrier assembly further includes an upper pin shaft assembly, which mainly includes an upper pin shaft 60, an upper pin shaft pad 70 and an upper pin shaft limit pin 80. The upper pin 60 has a flange surface at one end and a hole radially formed at the other end. The upper pin 60 is installed in the first bushing hole and the second bushing hole of the brake pad holder 20, and the flange surface of the upper pin is attached to the end surface of the first bushing hole to prevent the upper pin 60 from falling off downward. After the upper pin shaft 60 is installed in the first and second bushing holes, the upper pin shaft gasket 70 is sleeved from the end of the upper pin shaft 60 away from the flange surface, then the upper pin shaft limiting pin 80 is partially installed in the opening of the upper pin shaft 60, and the part of the upper pin shaft limiting pin 80 extending out of the upper pin shaft 60 limits the upper pin shaft gasket 70 from vertically falling off.
In order to facilitate the rotation of the anti-drop pin shaft 41, a structure facilitating the rotation of the tool is further designed on the anti-drop pin shaft 41, so that an inner hexagonal counter bore may be designed on the end surface of the second end of the anti-drop pin shaft 41, and design manners such as a hexagonal head design, a fabrication hole or a fabrication groove may also be adopted.
As shown in fig. 3, when the anti-separation mechanism 40 is in the anti-separation locking state, the anti-separation pin 41 is in the second limiting position, and at this time, the second deep tooth 421a of the first tooth-shaped portion 421 is matched with the first deep tooth 422a of the second tooth-shaped portion 422, so that the peripheral surface of the anti-separation pin 41 is attached to the first plane of the brake pad block 30, and the brake pad block 30 cannot be rotated to be opened. At this time, even if the clip spring 50 fails, the locking action of the damper blade stopper 30 to the damper blade 10 is ensured so that the damper blade stopper 30 is stably positioned at the first restriction position.
As shown in fig. 4 to 6, when the brake pad 10 needs to be removed or replaced, the rotation limitation of the brake pad stopper 30 by the anti-drop pin 41 needs to be cancelled, so that the anti-drop pin 41 is in the second avoidance position. At this time, by rotating the retaining pin 41, the second deep tooth 421a of the first tooth-shaped portion 421 slides along the inclined tooth surface of the first deep tooth 422a of the second tooth-shaped portion 422, and the retaining pin 41 is rotated and lifted up.
When the anti-slip pin 41 rotates to the highest position of the tooth surface meshing between the first toothed portion 421 and the second toothed portion 422, the anti-slip pin 41 compresses the elastic member 44 to reach the highest position, and then under the action of the elastic member 44, the anti-slip pin 41 and the first toothed portion 421 fall down, and the second deep tooth 421a of the first toothed portion 421 is engaged with the shallow tooth 422b of the second toothed portion 422 and maintains a stable state. Compared with the second limit position, the positions of the anti-release pin shaft 41 and the first tooth-shaped portion 421 at the second avoidance position are raised by a certain height, and the raised height is the difference between the heights of the first deep tooth 422a and the shallow tooth 422b of the second tooth-shaped portion 422. At this time, the escape pin 41 cannot limit the brake pad stopper 30. At this time, the brake pad stopper 30 can be rotated to open by pulling the clamp spring 50, and the brake pad 10 can be detached.
In yet another embodiment of the present invention, as shown in fig. 24, the brake lining holder assembly comprises a brake lining holder 20, a support pin 91, a cotter pin 92, a spring 93, a brake lining holder sleeve 94, an elastic pin 95, a brake lining stopper 30 and a clamp spring 50, wherein a brake lining is mounted on the brake lining holder 20, an interface of the brake lining holder 20 adopts a dovetail interface of UIC standard, the brake lining is a powder metallurgy brake lining, an upper pin shaft mounting seat which is mounted in cooperation with an upper arm of a second concave frame of a brake caliper lever is provided on an upper portion of the brake lining holder 20, an upper pin shaft hole which is matched with the upper support pin 91 is formed on the upper pin shaft mounting seat, a cotter pin hole which is matched with the cotter pin 92 is formed on a lower end of the upper support pin 91, a lower pin shaft mounting seat which is mounted in cooperation with a lower arm of the second concave frame of the brake caliper lever is provided on a lower portion of the brake lining holder 20, a lower pin shaft hole which is matched with the lower support pin, the lower extreme of lower part support pin 91 is equipped with brake lining support spacer sleeve, is provided with the elastic pin 95 that is used for fixed lower part support pin 91 on the brake lining support spacer sleeve, and it has spring 93 to lie in brake lining support spacer sleeve top cover on lower part support pin 91, lies in brake lining support spacer sleeve department on the brake lining support 20 and is equipped with brake lining dog 30, and brake lining support 20 is connected with brake lining dog 30 through jump ring 50.
In yet another embodiment of the present invention, there is provided a brake pad assembly including a brake pad holder assembly, which is the brake pad holder assembly provided in the above-mentioned embodiments, and which is effective to stably couple the brake pad 10 and the brake pad holder 20 together. When the brake pad assembly of this embodiment is used, the brake pad 10 needs to be mounted on the brake pad holder 20, and then the anti-drop pin 41 is located at the second limiting position to prevent the brake pad 10 from dropping off from the brake pad holder 20. With the brake apparatus of the present embodiment, the locking mechanism 40 has a locked state and a released state of the brake pad 10, and enables the brake pad 10 and the brake pad holder 20 to be firmly connected when in the locked state.
In a further embodiment of the invention, as shown in figure 25, there is provided a brake arrangement, in particular a brake calliper, comprising a brake pad carrier assembly, in particular the brake pad carrier assembly provided by the above embodiment.
In a further embodiment of the present invention, there is provided a rail vehicle comprising a brake pad carrier assembly, in particular, the brake pad carrier assembly provided in the above embodiment.
It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments according to the present application. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, and it should be understood that when the terms "comprises" and/or "comprising" are used in this specification, they specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof, unless the context clearly indicates otherwise.
The relative arrangement of the components and steps, the numerical expressions and numerical values set forth in these embodiments do not limit the scope of the present invention unless specifically stated otherwise. Meanwhile, it should be understood that the sizes of the respective portions shown in the drawings are not drawn in an actual proportional relationship for the convenience of description. Techniques, methods, and apparatus known to those of ordinary skill in the relevant art may not be discussed in detail but are intended to be part of the specification where appropriate. In all examples shown and discussed herein, any particular value should be construed as merely illustrative, and not limiting. Thus, other examples of the exemplary embodiments may have different values. It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, further discussion thereof is not required in subsequent figures.
In the description of the present invention, it is to be understood that the orientation or positional relationship indicated by the orientation words such as "front, rear, upper, lower, left, right", "lateral, vertical, horizontal" and "top, bottom", etc. are usually based on the orientation or positional relationship shown in the drawings, and are only for convenience of description and simplicity of description, and in the case of not making a reverse description, these orientation words do not indicate and imply that the device or element being referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore, should not be considered as limiting the scope of the present invention; the terms "inner and outer" refer to the inner and outer relative to the profile of the respective component itself.
Spatially relative terms, such as "above … …," "above … …," "above … …," "above," and the like, may be used herein for ease of description to describe one device or feature's spatial relationship to another device or feature as illustrated in the figures. It will be understood that the spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if a device in the figures is turned over, devices described as "above" or "on" other devices or configurations would then be oriented "below" or "under" the other devices or configurations. Thus, the exemplary term "above … …" can include both an orientation of "above … …" and "below … …". The device may be otherwise variously oriented (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.
It should be noted that the terms "first", "second", and the like are used to define the components, and are only used for convenience of distinguishing the corresponding components, and the terms have no special meanings unless otherwise stated, and therefore, the scope of the present invention should not be construed as being limited.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (19)
1. A brake pad holder assembly, said brake pad holder assembly comprising:
the brake pad holder (20) is provided with a first side and a second side which are oppositely arranged, the first side of the brake pad holder (20) is provided with a mounting surface which is matched and mounted with the brake pad (10), and the brake pad holder (20) is provided with a through groove (23);
the brake pad stop block (30) can extend into the through groove (23), two ends of the brake pad stop block (30) are located on the second side of the brake pad holder (20), the first end of the brake pad stop block (30) is rotatably connected with the brake pad holder (20), the second end of the brake pad stop block (30) is detachably connected with the brake pad holder (20), and the brake pad stop block (30) is provided with a first limiting position which extends into the through groove (23) to limit the movement of the brake pad (10) and a first avoiding position which is far away from the through groove (23) to allow the brake pad (10) to move out;
the brake pad holder assembly is characterized in that the brake pad holder assembly further comprises an anti-falling mechanism (40), the anti-falling mechanism (40) comprises an anti-falling pin shaft (41), the anti-falling pin shaft (41) is movably arranged on the second side of the brake pad holder (20), the anti-falling pin shaft (41) is provided with a second limiting position for blocking the movement of the brake pad stopper (30) and a second avoiding position for allowing the brake pad stopper (30) to move, and when the anti-falling pin shaft (41) is located at the second limiting position, the anti-falling pin shaft (41) penetrates through the brake pad stopper (30) or is abutted against one side of the brake pad stopper (30) departing from the brake pad (10);
the anti-drop mechanism (40) further includes:
rotatory cooperation structure (42), rotatory cooperation structure (42) set up the second side of brake lining support (20), and with anticreep round pin axle (41) are connected, rotatory cooperation structure (42) can make anticreep round pin axle (41) through center on axial displacement is realized in the rotation of the central axis of anticreep round pin axle (41), thereby makes anticreep round pin axle (41) are in the second restriction position with the second dodges and removes between the position.
2. The brake pad carrier assembly according to claim 1, wherein the rotation engagement structure (42) comprises a first tooth-shaped portion (421) and a second tooth-shaped portion (422) that engage with each other, the first tooth-shaped portion (421) being disposed at a first end of the anti-drop pin (41), the second tooth-shaped portion (422) being disposed on the brake pad carrier (20).
3. Brake pad carrier assembly according to claim 2, characterized in that one of the first tooth-shaped portion (421) and the second tooth-shaped portion (422) comprises a reference tooth-shaped unit and the other comprises a mating tooth-shaped unit, the reference tooth-shaped unit comprises a first deep tooth (422a) and a shallow tooth (422b), the axial depth of the first deep tooth (422a) is greater than the axial depth of the shallow tooth (422b), the mating tooth-shaped unit comprises a second deep tooth (421a), the axial depth of the second deep tooth (421a) in the mating tooth-shaped unit is greater than the axial depth of the shallow tooth (422b) in the reference tooth-shaped unit, the first deep tooth (422a) or the shallow tooth (422b) of the reference tooth-shaped unit cooperates with the second deep tooth (421a) of the mating tooth-shaped unit to rotate and lock the anti-release pin (41) relative to the central axis of the anti-release pin (41) and in the second limit position or the second escape position And (4) placing.
4. The brake lining carrier assembly of claim 3, wherein said reference tooth units comprise a plurality of sets and said cooperating tooth units comprise a plurality of sets, said reference tooth units being the same number as said cooperating tooth units and being arranged in a one-to-one correspondence.
5. Brake lining carrier assembly according to claim 3, characterized in that the number of reference tooth profile elements differs from the number of cooperating tooth profile elements, the second deep tooth (421a) in each set of cooperating tooth profile elements being in the same relative position in the circumferential direction as the corresponding reference tooth profile element.
6. The brake pad holder assembly according to claim 3, wherein the developed tooth profiles of the first deep tooth (422a), the second deep tooth (421a) and the shallow tooth (422b) each comprise an oblique line segment and a straight line segment, and the oblique line segments of the first deep tooth (422a), the second deep tooth (421a) and the shallow tooth (422b) have the same direction.
7. The brake pad carrier assembly according to claim 3, wherein the developed tooth profile of the first deep tooth (422a), the second deep tooth (421a) and the shallow tooth (422b) are each composed of two diagonal segments.
8. The brake pad carrier assembly of claim 3, wherein the first deep tooth (422a) and the shallow tooth (422b) are a continuous tooth structure.
9. The brake pad carrier assembly according to claim 3, wherein there is a transition between the first deep tooth (422a) and the shallow tooth (422b) and/or a transition between two adjacent sets of the reference tooth units or a transition between two adjacent sets of the mating tooth units.
10. The brake pad holder assembly according to claim 1, wherein the anti-drop mechanism (40) further comprises:
the supporting seat (43) is arranged on the second side of the brake pad support (20), the anti-falling pin shaft (41) penetrates through the supporting seat (43), and the rotating matching structure (42) is arranged between the anti-falling pin shaft (41) and the supporting seat (43).
11. The brake lining support assembly of claim 10, wherein said supporting seat is provided with a threaded hole, said outer circumferential surface of said anti-slip pin shaft is provided with a threaded section engaged with said threaded hole, and said threaded hole and said threaded section form said rotation engagement structure.
12. The brake pad carrier assembly of claim 10, wherein the rotational engagement structure (42) includes a first tooth-shaped portion (421) and a second tooth-shaped portion (422) that engage with each other, the first tooth-shaped portion (421) being disposed at a first end of the anti-drop pin (41), the second tooth-shaped portion (422) being disposed on the support base (43), a second end of the anti-drop pin (41) passing through the support base (43) and extending toward the brake pad stop (30).
13. The brake pad holder assembly according to claim 12, wherein the anti-drop mechanism (40) further comprises:
the elastic piece (44) is arranged between the supporting seat (43) and the anti-falling pin shaft (41), and the elastic piece (44) is used for applying pressure towards the direction of the second tooth-shaped part (422) to the first tooth-shaped part (421).
14. The brake lining carrier assembly according to claim 13, wherein a shoulder is provided between the first end and the second end of the anti-slip pin shaft (41), one end of the elastic member (44) abuts against the shoulder, and the other end of the elastic member (44) abuts against the support seat (43).
15. The brake pad holder assembly of claim 2, further comprising:
the gear sleeve is sleeved at the first end of the anti-falling pin shaft (41), and the first tooth-shaped part (421) is arranged on one side of the gear sleeve, which is close to the second end of the anti-falling pin shaft (41);
the ratchet bush is arranged on the brake pad support (20), the second end of the anti-falling pin shaft (41) penetrates through the ratchet bush, and the second tooth-shaped part (422) is arranged on one side, close to the first end of the anti-falling pin shaft (41), of the ratchet bush.
16. A brake lining assembly comprising a brake lining carrier assembly and a brake lining (10), wherein the brake lining carrier assembly is as claimed in any one of claims 1 to 15, the brake lining (10) being removably arranged on a first side of a brake lining carrier (20) of the brake lining carrier assembly.
17. A brake rigging including a brake pad carrier assembly, wherein said brake pad carrier assembly is as claimed in any one of claims 1 to 15.
18. A braking apparatus in accordance with claim 17, characterised in that the braking apparatus is a brake caliper.
19. A rail vehicle including a brake pad carrier assembly, wherein the brake pad carrier assembly is as claimed in any one of claims 1 to 15.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611157433.3A CN106641042B (en) | 2016-12-15 | 2016-12-15 | A kind of brake clamp unit that can identify lever deformation |
| CN2016111574333 | 2016-12-15 | ||
| PCT/CN2017/116648 WO2018108170A1 (en) | 2016-12-15 | 2017-12-15 | Brake pad support assembly, brake pad assembly, braking device, and a rail vehicle |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110402338A CN110402338A (en) | 2019-11-01 |
| CN110402338B true CN110402338B (en) | 2021-06-11 |
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Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611157433.3A Active CN106641042B (en) | 2016-12-15 | 2016-12-15 | A kind of brake clamp unit that can identify lever deformation |
| CN201780076617.3A Active CN110402338B (en) | 2016-12-15 | 2017-12-15 | Brake pad holder assembly, brake pad assembly, braking device and railway vehicle |
Family Applications Before (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611157433.3A Active CN106641042B (en) | 2016-12-15 | 2016-12-15 | A kind of brake clamp unit that can identify lever deformation |
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| Country | Link |
|---|---|
| CN (2) | CN106641042B (en) |
| WO (1) | WO2018108170A1 (en) |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2018108131A1 (en) * | 2016-12-15 | 2018-06-21 | 中车戚墅堰机车车辆工艺研究所有限公司 | Brake cylinder, brake clamp unit and rail vehicle |
| CN106641042B (en) * | 2016-12-15 | 2018-12-25 | 常州中车铁马科技实业有限公司 | A kind of brake clamp unit that can identify lever deformation |
| CN109340277B (en) * | 2018-09-07 | 2021-03-19 | 南京中车浦镇海泰制动设备有限公司 | Hydraulic brake clamp |
| DE102018122726A1 (en) * | 2018-09-17 | 2020-03-19 | Bpw Bergische Achsen Kg | Sheet metal arrangement for a disc brake and disc brake with a sheet metal arrangement for a vehicle |
| CN112855809B (en) * | 2021-01-04 | 2023-01-13 | 中车青岛四方车辆研究所有限公司 | Pneumatic brake cylinder and brake caliper unit |
| CN115158390B (en) * | 2022-07-29 | 2024-03-01 | 中国铁道科学研究院集团有限公司 | Lightweight braking clamp unit |
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- 2016-12-15 CN CN201611157433.3A patent/CN106641042B/en active Active
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| GB2013803A (en) * | 1978-02-03 | 1979-08-15 | Teves Gmbh Alfred | Disc brakes |
| US4271936A (en) * | 1978-09-21 | 1981-06-09 | Knorr-Bremse Gmbh | Closure for retaining an insertable brake lining in a brake lining holder for disk brakes |
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Also Published As
| Publication number | Publication date |
|---|---|
| CN106641042B (en) | 2018-12-25 |
| WO2018108170A1 (en) | 2018-06-21 |
| CN106641042A (en) | 2017-05-10 |
| CN110402338A (en) | 2019-11-01 |
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Address after: 213011 258 Wuyi Road, Changzhou, Jiangsu Patentee after: CRRC Qishuyan Locomotive and Rolling Stock Technology Research Institute Co.,Ltd. Country or region after: China Patentee after: CRRC CHANGZHOU TECH-MARK INDUSTRIAL Co.,Ltd. Address before: 213011 258 Wuyi Road, Changzhou, Jiangsu Patentee before: CRRC QISHUYAN INSTITUTE Co.,Ltd. Country or region before: China Patentee before: CRRC CHANGZHOU TECH-MARK INDUSTRIAL Co.,Ltd. |