CN113120022B - Tread brake - Google Patents
Tread brake Download PDFInfo
- Publication number
- CN113120022B CN113120022B CN201911404236.0A CN201911404236A CN113120022B CN 113120022 B CN113120022 B CN 113120022B CN 201911404236 A CN201911404236 A CN 201911404236A CN 113120022 B CN113120022 B CN 113120022B
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- brake
- tread
- piston rod
- head
- brake shoe
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- 210000004907 gland Anatomy 0.000 claims description 9
- 238000013022 venting Methods 0.000 claims 3
- 230000000694 effects Effects 0.000 description 6
- 238000009423 ventilation Methods 0.000 description 5
- 239000000428 dust Substances 0.000 description 4
- 241001247986 Calotropis procera Species 0.000 description 3
- 238000004140 cleaning Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 238000006073 displacement reaction Methods 0.000 description 1
- 230000014509 gene expression Effects 0.000 description 1
- 238000010030 laminating Methods 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B61—RAILWAYS
- B61H—BRAKES OR OTHER RETARDING DEVICES SPECIALLY ADAPTED FOR RAIL VEHICLES; ARRANGEMENT OR DISPOSITION THEREOF IN RAIL VEHICLES
- B61H1/00—Applications or arrangements of brakes with a braking member or members co-operating with the periphery of the wheel rim, a drum, or the like
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Braking Arrangements (AREA)
Abstract
The invention provides a tread brake. Tread brake is used for braking rail vehicle's wheel, and tread brake includes: a brake shoe for engaging the wheel during braking; a brake head connected to the brake shoe to support the brake shoe; and a stop pad connected to an end of the brake head remote from the brake shoe for stopping the brake head when the brake head rotates relative to the brake shoe. By applying the technical scheme of the invention, the problem that the stability of the tread brake is affected due to the rotation of the brake head when the tread brake in the prior art brakes can be solved.
Description
Technical Field
The invention relates to the technical field of vehicle braking, in particular to a tread brake.
Background
The brake shoe directly acts on the tread of the wheel on the railway vehicle adopting the disc-shaped braking device, and has the function of improving the adhesion of the wheel rail and cleaning the tread of the wheel.
In the prior art, a tread brake generally comprises a brake shoe, a brake shoe holder, a steering adjustment mechanism and a cylinder, wherein the brake shoe holder is provided with a tail part which extends into a piston of the cylinder and is coaxial with the piston, a pin hole which is horizontally perpendicular to the center line is formed in the front half part of the tail part, a round slot hole is formed in the rear half part along the center line direction, the steering adjustment mechanism consists of a pin shaft, a belleville spring, a universal shaft, a ball and a universal screw, the pin shaft is arranged in the pin hole in the tail part of the brake shoe holder, the belleville spring and the universal shaft which are matched with the round slot hole in the tail part of the brake shoe holder are sequentially arranged in the round slot hole, the rear end of the universal shaft is a concave conical surface, the universal screw is arranged at the bottom center of the piston of the cylinder, and the front end surface of the universal shaft is a concave conical surface, and the ball is tightly clamped between the concave conical surface at the rear end of the universal shaft and the inner conical surface at the front end of the universal screw.
Because the cylinder piston directly pushes the brake shoe to move forwards, the structure is simple and the reliability is high. However, when the arc center of the brake shoe is not at the same height as the wheel center, the arc surface of the brake shoe cannot be completely attached to the wheel tread. In this case, the upper or lower end of the brake shoe must first contact the wheel, at which time the brake shoe pushes the brake head to rotate about the rotation pin under the combined action of the brake shoe pressure and the wheel tread, so that the brake shoe engages the wheel tread. However, if there is insufficient resistance to maintain this fit, stability of the tread brake is affected.
Disclosure of Invention
The invention mainly aims to provide a tread brake to solve the problem that the stability of the brake is affected due to the rotation of a brake head in the prior art.
In order to achieve the above object, the present invention provides a tread brake for braking wheels of a railway vehicle, the tread brake comprising: a brake shoe for engaging the wheel during braking; a brake head connected to the brake shoe to support the brake shoe; and a stop pad connected to an end of the brake head remote from the brake shoe for stopping the brake head when the brake head rotates relative to the brake shoe.
Further, the tread brake further comprises: a cylinder connected to the brake shoe to provide a braking force to the brake shoe; the gland is fixedly connected with the cylinder; the first end of the disc spring is fixedly connected with the gland, and the second end of the disc spring is connected with the stop pad so that the stop pad provides power for stopping the brake head from rotating.
Further, the cylinder comprises a piston rod, the piston rod is provided with a containing cavity, one end, far away from a brake shoe, of the brake head extends into the containing cavity, a through hole is formed in the brake head, the tread brake further comprises a rotating pin, the rotating pin is inserted into the through hole, the brake head is rotatably arranged around the rotating pin, and the rotating pin is located in the containing cavity.
Further, the tread brake further comprises a rubber bushing disposed between the rotation pin and the brake head.
Further, the tread brake further comprises a plurality of check rings, which are arranged at two ends of the rotating pin along the axial direction of the rotating pin so as to limit the rotating pin to move along the axial direction of the rotating pin.
Further, the number of the pressing covers is two, external threads are arranged on the pressing covers, two threaded holes which are oppositely arranged are formed in the piston rod, so that the pressing covers are in threaded connection with the piston rod, wherein the stop pad is arranged between the brake head and the pressing covers, and the stop pad is pressed on the brake head under the action of the two pressing covers which are oppositely arranged.
Further, still be equipped with the spout on the piston rod, the spout is linked together with holding the chamber, and tread stopper still includes: the rack is arranged in the chute, and is movably arranged under the drive of the piston rod in the axial direction of the piston rod; the first end of the bolt is inserted into the chute and is meshed with the rack; when the piston rod stretches out, the rack moves under the drive of the piston rod, and the rack drives the latch to lift in the vertical direction.
Further, the tread brake further comprises: the bolt cover is arranged on at least part of the bolts, and the bolts are movably arranged relative to the bolt cover along the axial direction of the bolts; one end of the reset piece is abutted with the inner wall surface of the bolt cover, and the other end of the reset piece is abutted with the stop shoulder of the bolt, so that after the bolt is lifted, the reset piece drives the bolt to reset.
Further, the tread brake further comprises: the mounting seat is connected with the outer wall surface of the air cylinder and is used for mounting a bolt, and a mounting hole is formed in the mounting seat; and the guide ring is fixedly arranged in the mounting hole so as to limit the rotation of the bolt.
Further, the tread brake further comprises a ventilation device which is communicated with the air cylinder so as to exhaust the air in the air cylinder.
By adopting the technical scheme of the application, the stop pad is arranged, so that when the brake shoe and the brake head swing from an angle, the stop pad forms a friction resistance to the brake head to prevent the brake shoe and the brake head from swinging, and further the brake shoe and the wheel tread are always kept to be attached to the greatest extent. Compared with the prior art without a stop pad, the stop pad can apply positive pressure to the brake head, and when the brake shoe and the brake head have the trend of angle swinging due to vehicle vibration and the like, the stop pad can generate stop resistance to the brake head to prevent the brake shoe and the brake head from swinging, so that the brake shoe and the tread of the wheel are always kept to be attached to the greatest extent, and further, the braking effect of the tread brake is ensured.
Drawings
The accompanying drawings, which are included to provide a further understanding of the application and are incorporated in and constitute a part of this specification, illustrate embodiments of the application and together with the description serve to explain the application. In the drawings:
FIG. 1 shows a schematic structural view of an embodiment of a tread brake according to the present invention;
FIG. 2 shows a cross-sectional view of the tread brake of FIG. 1;
FIG. 3 shows a second cross-sectional view of the tread brake of FIG. 1;
FIG. 4 is a schematic view of the tread brake of FIG. 1 shown in a longitudinal orientation with the tread brake being oscillated; and
Fig. 5 shows a schematic view of the tread brake of fig. 1 in a laterally oscillating configuration.
Wherein the above figures include the following reference numerals:
1. a brake shoe; 2. a brake head; 21. a rotation pin; 211. a retainer ring; 22. a rubber bushing; 3. a stop pad; 4. a cylinder; 41. a piston rod; 411. a chute; 5. a gland; 6. a disc spring; 7. a rack; 8. a plug pin; 9. a latch cover; 10. a reset member; 11. a mounting base; 12. a guide ring; 13. a ventilation device; 14. a dust-proof pipe.
Detailed Description
It should be noted that, without conflict, the embodiments of the present application and features of the embodiments may be combined with each other. The application will be described in detail below with reference to the drawings in connection with embodiments.
Referring to fig. 1 to 3, the present embodiment provides a tread brake for braking wheels of a railway vehicle. The tread brake of this embodiment comprises a brake shoe 1, a brake head 2 and a stop pad 3. Wherein, the brake shoe 1 is used for being attached to the wheel during braking; the brake head 2 is connected with the brake shoe 1 to support the brake shoe 1; the stop pad 3 is connected to an end of the brake head 2 remote from the brake shoe 1 to stop the brake head 2 as the brake head 2 rotates relative to the brake shoe 1.
In this embodiment, the stop pad 3 is provided, so that when the brake shoe 1 and the brake head 2 tend to swing from an angle, the stop pad 3 will form a stop force on the brake head 2, preventing the brake shoe 1 and the brake head 2 from swinging, and further ensuring that the brake shoe 1 and the wheel tread always keep the maximum fit. Compared with the prior art without the stop pad 3, the stop pad 3 in the embodiment can apply a positive pressure to the brake head 2, and when the brake shoe 1 and the brake head 2 have a trend of angle swinging due to vehicle vibration and the like, the stop pad 3 can generate a stop resistance to the brake head 2 to prevent the brake shoe 1 and the brake head 2 from swinging, so that the brake shoe 1 and the tread of the wheel are ensured to be always attached to the maximum extent, and further the braking effect of the tread brake is ensured.
As shown in fig. 1 to 3, in the present embodiment, the tread brake further includes a cylinder 4, a gland 5, and a disc spring 6. The cylinder 4 is connected with the brake shoe 1 to provide braking force to the brake shoe 1; the gland 5 is fixedly connected with the cylinder 4; the first end of the disc spring 6 is fixedly connected with the gland 5, and the second end of the disc spring 6 is connected with the stop pad 3 to provide power for the stop pad 3 to stop the brake head 2 from rotating.
The cylinder 4 is used for providing braking force to the brake shoe 1 so that the brake shoe 1 is attached to the tread of the wheel to realize the braking of the wheel.
Specifically, as shown in fig. 2, in the present embodiment, there are two pressing caps 5, the pressing caps 5 are provided with external threads, the piston rod 41 is provided with two threaded holes which are oppositely arranged, so that the pressing caps 5 are in threaded connection with the piston rod 41, wherein the stop pad 3 is arranged between the brake head 2 and the pressing caps 5, so that the stop pad 3 is pressed on the brake head 2 under the action of the two pressing caps 5 which are oppositely arranged. Because the one end and gland 5 fixed connection of dish spring 6, the other end is connected with backstop pad 3 to when brake head 2 appears rotating the trend, backstop pad 3 keeps motionless under the elasticity effect of dish spring 6, and backstop brake head 2's rotation, and then guarantees brake shoe 1 and the laminating degree of wheel tread, realizes the braking to the wheel.
Preferably, the stop pad 3 in this embodiment is a friction pad. When the brake head 2 tends to rotate, the friction pad generates a frictional resistance to stop the brake head 2 from rotating as the brake head 2 rotates.
As shown in fig. 2 and 3, in this embodiment, the cylinder 4 comprises a piston rod 41, the piston rod 41 having a receiving cavity into which the end of the brake head 2 remote from the brake shoe 1 protrudes, the brake head 2 being provided with a through hole; the tread brake further comprises a rotation pin 21, the rotation pin 21 being inserted in the through hole, the brake head 2 being rotatably arranged around the rotation pin 21, wherein the rotation pin 21 is located in the receiving cavity.
Further, the tread brake also includes a rubber bushing 22, the rubber bushing 22 being disposed between the rotation pin and the brake head.
In this embodiment, when assembling the tread brake, the rubber bush 22 is fitted into the through hole, and then the rotation pin 21 is fitted into the rubber bush 22, so that the brake head 2 can be laterally deflected with respect to the piston rod 41, and wear of the rotation pin 21 can be prevented from occurring when it rotates in the through hole. The pivot pin 21 is then inserted into an internal bore in the inner wall of the piston rod 41, thereby providing a hinged connection between the piston rod 41 and the brake head 2.
Specifically, as shown in fig. 4, when the center of the arc of the brake shoe 1 is not at the same height as the center of the wheel, the arc surface of the brake shoe 1 cannot be fitted to the tread of the wheel. In this case, the upper or lower end of the brake shoe 1 must first contact the wheel, at this time, under the combined action of the brake shoe pressure and the wheel tread, the brake shoe 1 pushes the brake head 2 to rotate around the rotation pin 21, at this time, the extension plane of the brake head 2 also rotates around the rotation pin 21, and the brake head 2 and the stop pad 3 have relative displacement until the brake shoe 1 and the wheel tread are maximally fitted. Due to the elastic force of the disc spring 6, the stop pad 3 always applies a positive pressure to the brake head, and if the brake shoe 1 and the brake head 2 have a tendency to swing angularly due to vehicle vibration and the like, the friction pad forms a friction resistance to the brake head 2 to prevent the brake shoe 1 and the brake head 2 from swinging, so that the brake shoe 1 and the wheel tread always keep the maximum fit.
As shown in fig. 5, when the shoe 1 is deflected laterally from the tread, the shoe 1 cannot fully engage the tread. At this time, one end of the brake shoe 1 in the direction perpendicular to the paper surface must first contact the wheel, at this time, under the combined action of the pressure of the brake shoe 1 and the wheel tread, the rubber bushing 22 deforms, so that the deformation of the disc spring 6 on one side of the brake shoe 1 is increased, the deformation of the disc spring 6 on the other side is reduced, and the brake shoe 1 deflects in the transverse direction, so that the tile surface of the brake shoe 1 is completely attached to the wheel tread in the transverse direction. After the braking is released, the rubber bush 22 and the disc spring 6 are restored to the original state under the action of the self elastic force, and the brake shoe 1 is reset in the transverse direction.
Therefore, through the arrangement, the technical scheme of the embodiment can realize deflection of the brake shoe 1 in two directions, ensure that the brake shoe 1 is kept to be attached to the tread to the greatest extent, ensure the braking effect and protect the tread.
Preferably, as shown in fig. 2, in the present embodiment, the tread brake further includes a plurality of check rings 211, and the check rings 211 are provided at both ends of the rotation pin 21 in the axial direction of the rotation pin 21 to restrict the rotation pin 21 from moving in the axial direction thereof.
By the above arrangement, the movement of the rotation pin 21 in the axial direction can be effectively prevented, and the stable connection between the piston rod 41 and the brake head 2 can be ensured.
As shown in fig. 3, in this embodiment, the piston rod 41 is further provided with a sliding groove 411, the sliding groove 411 is communicated with the accommodating cavity, and the tread brake further comprises a rack 7 and a latch 8. The rack 7 is arranged in the sliding groove 411, and in the axial direction of the piston rod 41, the rack 7 is movably arranged under the drive of the piston rod 41; the first end of the bolt 8 is inserted into the sliding groove 411, and the first end is meshed with the rack 7; when the piston rod 41 extends, the rack 7 moves under the drive of the piston rod 41, and the rack 7 drives the latch 8 to lift in the vertical direction.
Specifically, when the tread brake is braked, compressed air is filled from the air inlet of the air cylinder 4, the compressed air pushes the piston rod 41 to move so as to drag the brake head 2 and the brake shoe 1 to extend towards the wheel, and the brake shoe 1 is pressed on the tread of the wheel, so that the cleaning and braking of the wheel are realized. When the piston rod 41 is extended, the rack 7 will be driven in motion. As shown in fig. 2, the rack 7 is extended leftward by the drive of the piston rod 41, the left tooth surface of the rack 7 acts on the lower end of the plug 8, and the plug 8 is lifted relative to the bush in the axial direction thereof by the drive of the rack 7.
In this embodiment, as shown in fig. 3, the tread brake further comprises a latch cover 9 and a return member 10. A plug pin cover 9 is provided on at least part of the plug pin 8, and the plug pin 8 is provided movably with respect to the plug pin cover 9 in the axial direction of the plug pin 8; one end of the reset piece 10 is abutted with the inner wall surface of the bolt cover 9, and the other end of the reset piece 10 is abutted with a stop shoulder of the bolt 8, so that after the bolt 8 is lifted, the reset piece 10 drives the bolt 8 to reset.
Preferably, the restoring member 10 in this embodiment is a spring.
When the latch 8 is raised, the spring is compressed. As the piston rod 41 continues to extend outwards, the latch 8 slides over the first tooth surface of the rack 7, and then the latch 8 falls under the action of the elastic force of the spring to reset and mesh with the next tooth slot on the rack 7. The lower end of the latch 8 is successively engaged with the teeth on the rack 7 as the distance of forward movement of the piston rod 41 increases.
When the tread brake is released, compressed air in the air cylinder 4 is discharged, the piston rod 41 drives the brake shoe 1 to leave the wheel under the action of the elasticity of the reset spring in the air cylinder 4, and at the moment, the lower end of the bolt 8 and the right tooth surface of the rack 7 form self-locking, so that the rack 7 cannot move rightwards along with the piston rod 41. When the left end of the sliding groove 411 is abutted against the left end of the rack 7, the piston rod 41 stops moving, so that the retraction distance of the piston rod 41 is controlled, the distance between the brake shoe 1 and the wheel is kept within a fixed range, and the aim of flexibly adjusting the gap between the brake shoe 1 and the tread of the wheel is fulfilled.
As shown in fig. 1 to 3, in this embodiment, the tread brake further comprises a mounting seat 11 and a guide ring 12. The mounting seat 11 is connected with the outer wall surface of the air cylinder 4 and is used for mounting the bolt 8, and a mounting hole is formed in the mounting seat 11; the guide ring 12 is fixedly installed in the installation hole to limit the rotation of the latch 8.
Specifically, the circumference of the guide ring 12 has an arc segment and a straight line segment, and the outer circumference of the plug pin 8 having an outer contour guide ring 12 fitted to the outer circumference of the guide ring 12 is fixedly installed in the installation hole to restrict the rotation of the plug pin 8 so that the plug pin 8 can only slide in the axial direction thereof with respect to the guide ring 12.
As shown in fig. 2, in this embodiment, the tread brake further comprises a ventilation device 13, and the ventilation device 13 communicates with the cylinder 4 to exhaust the gas in the cylinder 4.
Preferably, the ventilation means 13 is arranged outside the mounting seat 11, and the air inlet of the cylinder 4 is arranged at the bottom of the cylinder.
As shown in fig. 1 to 3, in the present embodiment, the tread brake further includes a dust tube 14, one end of the dust tube 14 is sleeved on the end of the brake head 2 facing the cylinder 4, and the other end of the dust tube 14 is sleeved on the end of the mounting seat 11 facing the brake shoe 1.
Through the arrangement, foreign matters such as dust can be effectively prevented from entering the tread brake, and the service life of the tread brake is prolonged.
From the above description, it can be seen that the above embodiments of the present invention achieve the following technical effects:
Due to the arrangement of the stop pad, when the brake shoe and the brake head swing from an angle, the stop pad forms a friction resistance for the brake head to prevent the brake shoe and the brake head from swinging, thereby ensuring that the brake shoe and the wheel tread always keep the maximum fit. Compared with the prior art without a stop pad, the stop pad can apply positive pressure to the brake head, and when the brake shoe and the brake head have the trend of angle swinging due to vehicle vibration and the like, the stop pad can generate stop resistance to the brake head to prevent the brake shoe and the brake head from swinging, so that the brake shoe and the tread of the wheel are always kept to be attached to the greatest extent, and further, the braking effect of the tread brake is ensured.
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 exemplary embodiments according to the present application. As used herein, the singular is also intended to include the plural unless the context clearly indicates otherwise, and furthermore, it is to be understood that the terms "comprises" and/or "comprising" when used in this specification are taken to specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof.
The relative arrangement of the components and steps, numerical expressions and numerical values set forth in these embodiments do not limit the scope of the present invention unless it is specifically stated otherwise. Meanwhile, it should be understood that the sizes of the respective parts shown in the drawings are not drawn in actual scale for convenience of description. Techniques, methods, and apparatus known to one of ordinary skill in the relevant art may not be discussed in detail, but should be considered part of the specification where appropriate. In all examples shown and discussed herein, any specific values should be construed as merely illustrative, and not a limitation. Thus, other examples of the exemplary embodiments may have different values. It should be noted that: like reference numerals and letters denote like items in the following figures, and thus once an item is defined in one figure, no further discussion thereof is necessary in subsequent figures.
In the description of the present invention, it should be understood that the azimuth or positional relationships indicated by the azimuth terms such as "front, rear, upper, lower, left, right", "lateral, vertical, horizontal", and "top, bottom", etc., are generally based on the azimuth or positional relationships shown in the drawings, merely to facilitate description of the present invention and simplify the description, and these azimuth terms do not indicate and imply that the apparatus or elements referred to must have a specific azimuth or be constructed and operated in a specific azimuth, and thus should not be construed as limiting the scope of protection of the present invention; the orientation word "inner and outer" refers to inner and outer relative to the contour of the respective component itself.
Spatially relative terms, such as "above … …," "above … …," "upper surface on … …," "above," and the like, may be used herein for ease of description to describe one device or feature's spatial location relative 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 in use or operation in addition to the orientation depicted in the figures. For example, if the device in the figures is turned over, elements described as "above" or "over" other devices or structures would then be oriented "below" or "beneath" the other devices or structures. Thus, the exemplary term "above … …" may include both orientations "above … …" and "below … …". The device may also be positioned in other different ways (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.
In addition, the terms "first", "second", etc. are used to define the components, and are only for convenience of distinguishing the corresponding components, and the terms have no special meaning unless otherwise stated, and therefore should not be construed as limiting the scope of the present invention.
The above description is only of the preferred embodiments of the present invention and is not intended to limit the present invention, but various modifications and variations can be made to the present invention by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (7)
1. A tread brake for braking wheels of a railway vehicle, the tread brake comprising:
a brake shoe (1) for engaging the wheel during braking;
A brake head (2) connected to said brake shoe (1) for supporting said brake shoe (1);
A stop pad (3) connected to an end of the brake head (2) remote from the brake shoe (1) to stop the brake head (2) when the brake head (2) rotates relative to the brake shoe (1);
the tread brake further comprises:
a cylinder (4) connected to the brake shoe (1) to provide a braking force to the brake shoe (1);
the gland (5) is fixedly connected with the cylinder (4);
The first end of the disc spring (6) is fixedly connected with the gland (5), and the second end of the disc spring (6) is connected with the stop pad (3) so as to provide power for stopping the brake head (2) from rotating for the stop pad (3);
The cylinder (4) comprises a piston rod (41), the piston rod (41) is provided with a containing cavity, one end of the brake head (2) far away from the brake shoe (1) stretches into the containing cavity, and a through hole is formed in the brake head (2); the tread brake further comprises a rotating pin (21), wherein the rotating pin (21) is inserted into the through hole, the brake head (2) is rotatably arranged around the rotating pin (21), and the rotating pin (21) is positioned in the accommodating cavity;
The tread brake further comprises a rubber bushing (22), said rubber bushing (22) being arranged between the rotation pin (21) and the brake head (2).
2. The tread brake according to claim 1, further comprising a plurality of check rings (211), the check rings (211) being provided at both ends of the rotation pin (21) in the axial direction of the rotation pin (21) to restrict the rotation pin (21) from moving in the axial direction thereof.
3. Tread brake according to claim 1, characterized in that the number of the said covers (5) is two, the said covers (5) are provided with external threads, the said piston rod (41) is provided with two threaded holes arranged opposite to each other, so that the said covers (5) are screwed with the said piston rod (41), wherein the said stop pad (3) is arranged between the said brake head (2) and the said covers (5), so that the said stop pad (3) is pressed against the said brake head (2) under the action of the said two said covers (5) arranged opposite to each other.
4. Tread brake according to claim 1, characterized in that the piston rod (41) is further provided with a chute (411), the chute (411) being in communication with the containing cavity, the tread brake further comprising:
A rack (7) arranged in the sliding groove (411), wherein the rack (7) is movably arranged under the drive of the piston rod (41) in the axial direction of the piston rod (41);
The first end of the bolt (8) is inserted into the sliding groove (411), and the first end is meshed with the rack (7);
When the piston rod (41) stretches out, the rack (7) moves under the drive of the piston rod (41), and the rack (7) drives the bolt (8) to lift in the vertical direction.
5. The tread brake of claim 4, the tread brake is characterized by further comprising:
A plug pin cover (9), wherein the plug pin cover (9) is arranged on at least part of the plug pins (8) in a covering manner, and the plug pins (8) are movably arranged relative to the plug pin cover (9) along the axial direction of the plug pins (8);
The reset piece (10), the one end of reset piece (10) with the internal face butt of bolt lid (9), the other end of reset piece (10) with the fender shoulder butt of bolt (8), in order to after bolt (8) rise, reset piece (10) drive bolt (8) reset.
6. The tread brake of claim 4, the tread brake is characterized by further comprising:
the mounting seat (11) is connected with the outer wall surface of the air cylinder (4) and used for mounting the bolt (8), and a mounting hole is formed in the mounting seat (11);
and the guide ring (12) is fixedly arranged in the mounting hole so as to limit the rotation of the bolt (8).
7. Tread brake according to any one of claims 1 to 6, further comprising a venting device (13), the venting device (13) being in communication with the cylinder (4) for venting the gas in the cylinder (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911404236.0A CN113120022B (en) | 2019-12-30 | 2019-12-30 | Tread brake |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911404236.0A CN113120022B (en) | 2019-12-30 | 2019-12-30 | Tread brake |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN113120022A CN113120022A (en) | 2021-07-16 |
| CN113120022B true CN113120022B (en) | 2024-09-10 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911404236.0A Active CN113120022B (en) | 2019-12-30 | 2019-12-30 | Tread brake |
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| Country | Link |
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| CN (1) | CN113120022B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114678237B (en) * | 2021-12-20 | 2024-05-17 | 国网上海市电力公司 | Pin shaft for circuit breaker, arc extinguishing chamber using pin shaft and circuit breaker |
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| CN103693069A (en) * | 2013-12-30 | 2014-04-02 | 常州南车铁马科技实业有限公司 | Tread brake device |
| CN211765569U (en) * | 2019-12-30 | 2020-10-27 | 常州中车铁马科技实业有限公司 | Tread brake |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104620011B (en) * | 2012-09-12 | 2017-03-29 | 纳博特斯克有限公司 | Stopping brake releases device, brake cylinder device and brake unit manually |
| CN102815317B (en) * | 2012-09-19 | 2014-12-10 | 常州南车铁马科技实业有限公司 | Tread sweeper |
| CN103342129A (en) * | 2013-07-29 | 2013-10-09 | 南车株洲电力机车有限公司 | Brake head device for locomotive brake |
| CN105644581B (en) * | 2014-11-12 | 2019-07-23 | 克诺尔车辆设备(苏州)有限公司 | The tread brake device of rail vehicle |
| CN104442895A (en) * | 2014-11-26 | 2015-03-25 | 南京浦镇海泰制动设备有限公司 | Tread brake |
| CN204956514U (en) * | 2015-09-21 | 2016-01-13 | 南车株洲电力机车有限公司 | Can prevent brake shoe brake head device of mill partially |
| CN206383970U (en) * | 2016-12-13 | 2017-08-08 | 常州中车铁马科技实业有限公司 | A kind of tread sweeping device |
-
2019
- 2019-12-30 CN CN201911404236.0A patent/CN113120022B/en active Active
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2551527Y (en) * | 2002-06-21 | 2003-05-21 | 株洲电力机车厂 | Tread cleaner of railway locomotive |
| CN201083243Y (en) * | 2007-09-25 | 2008-07-09 | 常州市铁马科技实业有限公司 | Tread sweeping device |
| CN103693069A (en) * | 2013-12-30 | 2014-04-02 | 常州南车铁马科技实业有限公司 | Tread brake device |
| CN211765569U (en) * | 2019-12-30 | 2020-10-27 | 常州中车铁马科技实业有限公司 | Tread brake |
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