CN112389489A - Tread brake and have its rail vehicle - Google Patents
Tread brake and have its rail vehicle Download PDFInfo
- Publication number
- CN112389489A CN112389489A CN201910741626.0A CN201910741626A CN112389489A CN 112389489 A CN112389489 A CN 112389489A CN 201910741626 A CN201910741626 A CN 201910741626A CN 112389489 A CN112389489 A CN 112389489A
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- brake
- assembly
- wheel
- tread
- stop
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- 239000000789 fastener Substances 0.000 claims description 3
- 238000006243 chemical reaction Methods 0.000 description 14
- 230000000712 assembly Effects 0.000 description 12
- 238000010008 shearing Methods 0.000 description 11
- 230000000694 effects Effects 0.000 description 4
- 238000009434 installation Methods 0.000 description 4
- 238000005452 bending Methods 0.000 description 3
- 241001391944 Commicarpus scandens Species 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000006011 modification reaction Methods 0.000 description 2
- 230000001627 detrimental Effects 0.000 description 1
- 229910003460 diamond Inorganic materials 0.000 description 1
- 239000010432 diamond Substances 0.000 description 1
- 230000003137 locomotive Effects 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
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Classifications
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- 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
Abstract
The invention provides a tread brake and a railway vehicle with the tread brake. A tread brake for braking a wheel of a railway vehicle, the tread brake comprising: a brake assembly mounted on a bogie of a railway vehicle to apply a braking force to a wheel; the stopping component is connected with the brake component and the bogie, and is used for stopping a first acting force and a second acting force applied to the brake component when the brake component applies a braking force to the wheel; wherein, backstop subassembly is including a plurality of backstop structures that connect gradually, and a plurality of backstop structures are integrated into one piece structure. By applying the technical scheme of the invention, the problem of poor mounting stability of the tread brake on the bogie in the prior art can be solved.
Description
Technical Field
The invention relates to the technical field of railway vehicles, in particular to a tread brake and a railway vehicle with the tread brake.
Background
Locomotive vehicles, urban rail transit vehicles and partial rail engineering vehicles widely adopt a tread braking mode, a plurality of bosses are arranged on the side face of a common tread braking unit, and each boss is provided with a bolt hole. The tread braking unit is fixed on the bogie through bolt connection, and when the tread braking unit brakes the wheel, all the force is transmitted to the bogie through the bolt.
As the bolt is subjected to larger shearing force, the bolt is always broken in the vehicle braking process, and the vehicle running safety is seriously influenced. For this reason, a technique of adding a stopper surface to the bogie has been developed to reduce the stress of the bolt.
The stop component in the prior art is a plane, the stop plane is in contact with the boss and is perpendicular to the positive pressure direction of the brake shoe, so that the stop component can counteract the reaction force F of part of the positive pressure of the brake shoe, and the aim of reducing the stress of the bolt is fulfilled.
However, when the vehicle is braked, the tread brake unit receives a friction force of the wheel rotating relative to the brake shoe in addition to a reaction force F of the brake shoe positive pressure, and the friction force is about 0.3 to 0.5 times of the brake shoe positive pressure. The stop component with the single plane can not offset the friction force, the fastening bolt can transmit all the friction force, and the stop effect is limited. Moreover, the stop assembly in the prior art is located at one end of the tread brake far away from the brake shoe, so that the bending moment generated by the counterforce of the braking force around the stop assembly is large, and the stability of fixedly mounting the tread brake unit on the bogie is not facilitated.
Disclosure of Invention
The invention mainly aims to provide a tread brake and a railway vehicle with the same, and aims to solve the problem that the mounting stability of the tread brake on a bogie in the prior art is poor.
To achieve the above object, according to one aspect of the present invention, there is provided a tread brake for braking a wheel of a railway vehicle, the tread brake comprising: a brake assembly mounted on a bogie of a railway vehicle to apply a braking force to a wheel; the stopping component is connected with the brake component and the bogie, and is used for stopping a first acting force and a second acting force applied to the brake component when the brake component applies a braking force to the wheel; wherein, backstop subassembly is including a plurality of backstop structures that connect gradually, and a plurality of backstop structures are integrated into one piece structure.
Further, a plurality of stop structures are connected in sequence to form a stop assembly with an arc-shaped surface.
Further, the brake assembly comprises a connecting column, the connecting column is connected with one side of the bogie, which faces the brake assembly, and the brake assembly is connected onto the bogie through the connecting column.
Furthermore, the connecting column is a cylinder, and the arc surface is matched with the outer surface of the cylinder.
Further, the stop assembly is disposed at an end of the brake assembly distal from the wheel.
Further, the stop assembly is connected with the bogie through a fastener.
Further, the radian of the arc-shaped surface is greater than or equal to 90 degrees and less than 360 degrees.
Further, the opening of the arcuate surface faces the wheel.
Further, the brake assembly comprises a plurality of connecting columns, at least one connecting column is arranged at one end, far away from the wheel, of the bogie, and the tread brake comprises at least one stopping assembly which is arranged on the periphery of the connecting column, far away from the wheel.
According to another aspect of the invention, a rail vehicle is provided, comprising a wheel, a bogie connected with the wheel, and a tread brake arranged on the bogie, wherein the tread brake is the tread brake.
Further, the truck and the tread brake are removably connected.
The tread brake applying the technical scheme of the invention is mainly applied to a railway vehicle to brake wheels, and comprises a brake assembly and a stop assembly, wherein the brake assembly is used for applying brake force to the wheels to stop the wheels from rotating, the stop assembly is matched with the brake assembly to counteract the reaction force of the wheels to the brake assembly, the brake in the prior art can only counteract the vertical reaction force on the contact surface of the wheels, but cannot counteract the friction force in the tangential direction of the wheels, the friction force enables the brake to generate bending moment, and the brake is easy to damage, the tread brake of the invention is provided with the stop assembly, the stop assembly is provided with an arc surface which is used for counteracting the first action force and the second action force along the tangential direction of the brake assembly, the reliability of the connection between the brake assembly and a bogie is ensured, and the problem of poor stability of the tread brake in the prior art on the bogie is solved, easily fall off.
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 shows a schematic structural view of a first embodiment of a tread brake of a railway vehicle according to the invention;
FIG. 2 shows a cross-sectional view A-A of the tread brake of FIG. 1;
FIG. 3 shows a schematic structural view of the brake assembly of FIG. 1;
FIG. 4 shows a front view of FIG. 3;
FIG. 5 is a schematic structural view of a second embodiment of a stop assembly of the tread brake according to the present invention;
FIG. 6 shows a front view of FIG. 5; and
FIG. 7 is a schematic structural view of a third embodiment of a tread brake according to the present invention.
Wherein the figures include the following reference numerals:
10. a brake assembly; 11. connecting columns; 12. brake shoes; 20. a stop assembly; 21. a first stop structure; 22. a second stop structure; 23. a third stop structure; 30. a bogie; 40. and (7) wheels.
Detailed Description
It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict. The present invention will be described in detail below with reference to the embodiments with reference to the attached drawings.
Example one
In this embodiment, as shown in the stress analysis in fig. 2, the first acting force is: when the tread brake applies a braking force to the wheel 40, the reaction force given by the wheel 40 is received by the tread brake, that is, the tread brake receives a positive pressure along the radial direction of the wheel 40, and for the sake of understanding, in the following description, the first force is denoted by F; the second acting force is as follows: when the tread brake applies a braking force to the wheel 40, friction is also generated between the shoes 12 of the tread brake and the wheel 40 due to the rotation of the wheel 40, i.e. the friction applied by the tread brake in the tangential direction of the wheel 40, and for ease of understanding, the second force is denoted Fc in the following description.
Since the wheel 40 is in different operating states, there are two different states of clockwise rotation and counterclockwise rotation, and the direction of the friction force received by the tread brake is opposite, for the sake of convenience, in the state shown in fig. 2, the friction force received by the tread brake when the wheel 40 rotates clockwise (or when the wheel has a tendency to rotate clockwise) is Fc1The tread brake experiences a friction force Fc when the wheel 40 is rotating counterclockwise (or has a tendency to rotate counterclockwise)2。
The invention provides a tread brake for braking a wheel 40 of a rail vehicle, the tread brake comprising: a brake assembly 10 mounted on a bogie 30 of a railway vehicle to apply braking force to wheels 40; a stopping assembly 20 connected to both the brake assembly 10 and the bogie 30, such that when the brake assembly 10 applies a braking force to the wheel 40, the stopping assembly 20 stops F and Fc received by the brake assembly 10; the stopping assembly 20 includes a plurality of stopping structures connected in sequence, and the plurality of stopping structures are integrally formed.
The tread brake of the invention is mainly applied to a railway vehicle to brake a wheel, as shown in fig. 1 and 2, the tread brake comprises a brake assembly 10 and a stop assembly 20, the brake assembly 10 is used for applying a braking force to a wheel 40 to stop the wheel from rotating, the stop assembly 20 is matched with the brake assembly 10 to counteract F and Fc of the wheel to the brake assembly, the brake in the prior art can only counteract F and cannot counteract Fc, the Fc enables a fastening bolt connecting the brake assembly 10 and a bogie 30 to generate shearing stress, and the fastening bolt is easy to break, the tread brake of the invention ensures the reliability of the connection between the brake assembly and the bogie by arranging the stop assembly 20 and the stop assembly 20 is used for counteracting F and Fc of the brake assembly 10, thereby solving the problem that the tread brake in the prior art has poor mounting stability on the bogie, the fastening bolt is easily broken.
Further, backstop subassembly 20 includes a plurality of backstop structures that connect gradually, and a plurality of backstop structures are the integrated into one piece structure, and then have guaranteed whole backstop subassembly 20's structural strength for backstop subassembly 20 can effective backstop F and Fc.
Preferably, as shown in FIG. 2, a plurality of stop structures are connected in series to form a stop assembly 20 having an arcuate surface.
The arcuate surfaces serve to counteract F and Fc experienced by the brake assembly, ensuring the reliability of the connection of the brake assembly 10 to the truck 30.
Of course, in alternative embodiments not shown in the drawings, a plurality of stopping structures may be connected in sequence to form a U-shaped surface, a diamond-shaped surface, a square-shaped surface, a V-shaped surface, etc., and it is within the scope of the present application that the shape of stopping assembly 20 is effective to stop the shape of the first and second forces to which braking assembly 10 is subjected.
As shown in fig. 2, in the present embodiment, the brake assembly 10 includes an attachment column 11, the attachment column 11 is connected to a side of the bogie 30 facing the brake assembly 10, and the brake assembly 10 is connected to the bogie 30 through the attachment column 11. The connecting column 11 is a cylinder, and the arc surface is matched with the outer surface of the cylinder.
Preferably, the brake assembly 10 in the present embodiment includes four connecting columns 11, the connecting columns 11 are connected with the bogie 30 through fastening bolts to fix the brake assembly 10 on the bogie 30, and the stop assembly 20 at least partially offsets shearing force applied to the bolts through cooperation with the connecting columns 11, so as to ensure installation stability of the brake assembly, and make connection of the brake assembly and the bogie more reliable.
Further, as shown in fig. 2, in the present embodiment, the stopper assembly 20 is disposed at an end of the brake assembly 10 away from the wheel 40.
Preferably, the stopper assembly 20 in this embodiment is disposed at an end of the brake assembly 10 away from the wheel 40, so that the force applied to the connecting column 11 between the stopper assembly 20 and the bogie 30 can be effectively reduced, and the connection stability between the brake assembly 10 and the bogie 30 can be ensured.
Of course, in an alternative embodiment not shown in the drawings, when the stopping assembly 20 has an annular structure such as a diamond surface, a square surface, a circular surface, etc., the stopping assembly 20 can be directly sleeved on the periphery of the connecting column 11, and the setting of the stopping assembly 20 is not limited to the end far away from the wheel 40, so that a worker can set the stopping assembly appropriately according to the setting position of the connecting column 11; when the stopper assembly 20 has a structure having an opening, such as a U-shaped surface, a V-shaped surface, etc., the stopper assembly 20 is disposed at an end of the brake assembly 10 away from the wheel 40, thereby effectively stopping the shearing force applied to the attachment column 11.
The stop assembly 20 is connected to the bogie 30 by fasteners. The radian of the arc surface is more than or equal to 90 degrees and less than 360 degrees. The opening of the arcuate surface faces the wheel 40.
As shown in fig. 2, the tread brake in this embodiment preferably comprises two stop assemblies 20, the two stop assemblies 20 are welded to the bogie 30 by connecting plates, the stop assemblies 20 are arranged close to the connecting column 11, and the inner rings of the stop assemblies 20 are wrapped on the side of the connecting column 11 away from the wheel to counteract the reaction force of the brake assembly 10 on the wheel and reduce the shearing force applied to the fastening bolts.
Of course, in an alternative embodiment not shown in the drawings, the number of stop assemblies 20 is not limited to two, and may be set according to the specific structure of the brake assembly.
The brake assembly 10 comprises a plurality of connecting columns 11, at least one connecting column 11 is arranged at one end of the bogie 30 far away from the wheel 40, the tread brake comprises at least one stop assembly 20, and the stop assembly 20 is arranged at the periphery of the connecting column 11 far away from the wheel 40.
Of course, in an alternative embodiment not shown in the drawings, the stop assembly 20 may be disposed on the outer periphery of the connecting column 11 near the wheel 40, and the worker may set the connecting column 11 according to different arrangement modes and conditions of shear stress applied to the fastening bolts to ensure the connection strength of the fastening bolts.
As shown in fig. 2, the brake assembly 10 in this embodiment is provided with four connecting columns 11 spaced apart from each other, the connecting columns 11 are used for connecting the brake assembly 10 to the bogie 30, in this embodiment, two stop assemblies 20 are preferably provided, the two stop assemblies 20 are respectively provided on the two connecting columns 11 far away from the wheels, when the brake assembly brakes the wheels 40, the wheels 40 also generate F and Fc to the brake assembly 10, and the F and Fc are transmitted to the bogie through the connecting columns, and the stop assemblies are used for reducing the relative acting force between the bogie and the connecting columns.
The invention also provides a railway vehicle, which comprises wheels 40, a bogie 30 connected with the wheels 40 and a tread brake arranged on the bogie 30, wherein the tread brake is the tread brake. The truck 30 is removably connected to the tread brake.
In this embodiment, a transition plate is provided between the bogie 30 and the tread brake, and the tread brake is connected to the bogie 30 via the transition plate.
The rail vehicle provided by the invention comprises wheels, a bogie and the tread brake, wherein the tread brake is arranged on the bogie, and when the wheels are braked, the tread brake is close to the wheels and applies acting force and friction force to the wheels, so that the rotating speed of the wheels is reduced, and the aim of braking the wheels is fulfilled.
In the prior art, rolling stock, urban rail transit vehicle and partial rail engineering vehicle widely adopt tread braking mode. The tread brake applies pressure to the brake shoe 12 to bring the brake shoe 12 into contact with the wheel 40, resulting in a positive pressure on the brake shoe 12 and friction to apply a braking action to the wheel 40. The tread brake is fastened and mounted on the bogie 30 by bolts, the tread brake comprises a stop assembly 20, when the tread brake brakes the wheel 40, the wheel 40 exerts a reaction force F of a positive pressure on a brake shoe 12 of the tread brake, namely a first acting force; stop assembly 20 may be used to counteract the force F experienced by a portion of the tread brake.
In addition, during braking, friction is also generated between the shoe 12 of the tread brake and the wheel 40, depending on the direction of rotation of the wheel, and if the wheel rotates clockwise (or tends to rotate clockwise), the tread brake is subjected to a friction Fc2If the wheel is turning counterclockwise (or has a tendency to turn counterclockwise), the tread brake experiences a frictional force Fc1。
The stop assembly 20 'of the prior art is a flat surface, i.e. only a first stop surface is provided, which is perpendicular to the direction of the positive pressure applied to the brake shoe 12, so that the stop assembly 20' can only counteract the reaction force F of the positive pressure applied to a portion of the brake shoe 12, but cannot counteract the friction force Fc1And Fc2So that the fastening bolts are still subjected to Fc1(Fc2) The directional shear forces are detrimental to the stability of the tight mounting of the tread brake on the truck 30.
The technical scheme of the application is implemented by the following modes:
the tread brake has several circular raised parts, which may be screw bolts, and the tread brake is installed onto the bogie via the raised parts, i.e. the screw bolts, and the circular arc surface on the stopping assembly surrounds the circular raised parts on the tread brake.
When the tread brake is applied, the stop assembly counteracts a portion of the brake shoe positive pressure reaction force F and the wheel-to-brake shoe friction force Fc.
As an improvement of the embodiment of the invention, the circular arc surface on the stop component surrounds the circular convex part on the tread brake, and the surrounding mode can be semicircular surrounding, full circular surrounding or other surrounding angles.
As an improvement of the embodiment of the invention, the circular arc surface on the stop component surrounds a plurality of circular convex parts on the tread brake, and the number of circular arc surrounding can be less than or equal to the number of the circular convex parts on the tread brake.
As an improvement of the embodiment of the invention, the tread brake is fastened and installed on the bogie through a bolt.
As shown in FIGS. 1 and 2, in one embodiment of the tread brake of the present invention, the stop assembly 20 is mounted on a truck 30, and the tread brake is mounted on the truck 30, and may be attached using a side mount.
For clarity of description of the positions and directions described in the present application, the second direction is referred to as forward in the present application, whereas the direction opposite to the second direction, i.e., the direction indicated by the arrow F of the reaction force of the positive pressure of the brake shoe in FIG. 2, is referred to as backward; the radial direction of the wheel 40 parallel to the ground direction is defined as a longitudinal direction.
In this embodiment, four stop assemblies, preferably bolts, are provided on the tread brake, and the truck 30 stops two bolts on the tread brake that are far from the wheel by the stop assemblies 20.
When the tread brake is braking, the shoe 12 may be pushed in a second direction toward the wheel 40 to compress the tread of the wheel 40. At this point, the wheel exerts on the shoe 12 a reaction force F of a positive brake-shoe pressure, and also exerts on the shoe a sliding friction force Fc which reacts with the braking force, which is divided into a clockwise friction force Fc1 for the wheel and a counterclockwise friction force Fc2 for the wheel, so that when the wheel is turned (or tends to turn), the stop assembly counteracts a portion F and a portion Fc at the interface with the stop assembly on the tread brake.
When the tread brake is released, the brake shoe can be moved away from the wheel in a first direction to effect release of the wheel.
The second direction and the first direction can be arranged along any radial direction on the circumference of the wheel, namely, the brake shoe can approach or move away from the wheel along any radial direction of the wheel to realize braking or releasing of the wheel; in this embodiment, the second direction and the first direction are parallel to the longitudinal direction, i.e., the brake shoe can be moved toward or away from the wheel in the longitudinal direction.
Compared with the prior art, the invention has the beneficial effects that: after the stop surface is changed into the arc surface from the plane, the brake shoe friction force perpendicular to the positive pressure direction of the brake shoe can be effectively offset while the advantage of counteracting the counterforce brought by the positive pressure of the brake shoe in the original structure is kept, the shearing force received by the fastening bolt is reduced, and the stability of the fixed installation of the tread brake on the bogie is improved.
Example two
The difference between the second embodiment and the first embodiment is:
as shown in fig. 4 to 6, in the second embodiment, the tread brake includes four stopper assemblies 20, and the four stopper assemblies 20 are respectively disposed on the peripheries of the four connecting columns 11 of the brake assembly 10 to reduce the relative force between the bogie 30 and the connecting columns 11.
Through the above setting, four backstop subassemblies 20 carry out the backstop to the effort that is used in on spliced pole 11 respectively, have guaranteed the stability that every spliced pole 11 is connected, have avoided breaking because of spliced pole 11 receives the shearing force.
The other structures of the second embodiment are the same as those of the first embodiment, and are not described herein again.
EXAMPLE III
The difference between the third embodiment and the first embodiment is that:
referring to fig. 7, in the third embodiment, a plurality of stopper structures are connected in sequence to form a stopper assembly 20 having a U-shaped surface.
In the third embodiment, the connecting column 11 has an oval outer surface, and the U-shaped surface of the stopper member 20 is matched with the oval outer surface of the connecting column 11.
Specifically, the stop assembly 20 includes a first stop structure 21, a second stop structure 22, and a third stop structure 23, and the first stop structure 21, the second stop structure 22, and the third stop structure 23 are integrally formed as a unitary structure.
Wherein the first stopping structure 21 is perpendicular to the direction of the first acting force F. In the embodiment, the first stopping structure 21 is arranged, so that the first acting force F is stopped, the shearing action of part or all of the first acting force F on the brake assembly 10 is counteracted, and the stability of installation between the brake assembly 10 and the bogie 30 is ensured; the second stop structure 22 and the third stop structure 23 are both angled with respect to the first stop structure 21. The second acting force Fc is perpendicular to the first acting force F, so that the second stopping structure 22 or the third stopping structure 23 can stop the second acting force Fc, or stop the component force of the second acting force Fc, thereby reducing the shearing action of the second acting force Fc on the brake assembly 10 and ensuring the installation strength of the brake assembly 10.
Taking the state of the wheel 40 shown in fig. 2 as an example, when the wheel 40 rotates clockwise or tends to rotate clockwise, the brake assembly 10 applies a braking force to the wheel 40, so that the wheel 40 is subjected to a vertically upward frictional force, and the brake assembly 10 is subjected to a reaction force of the vertically downward frictional force, that is, a second acting force Fc2At this time, the third stopping structure 23 exerts the second acting force Fc2Plays a role of stopping, and reduces the second vertical downward acting force Fc borne by the fastening bolt2The shearing action of (1). Likewise, the second stop structure 22 exerts a second vertically upward force Fc upon the wheel 40 when it is rotating counterclockwise or tends to rotate counterclockwise1Plays a role of stopping to reduce the second acting force Fc of the fastening bolt in the vertical direction2The shearing action of (1).
Preferably, the second stop structure 22 and the third stop structure 23 in the third embodiment are parallel to each other.
From the above description, it can be seen that the above-described embodiments of the present invention achieve the following technical effects:
the tread brake is mainly applied to a railway vehicle to brake a wheel, and comprises a brake assembly and a stop assembly, wherein the brake assembly is used for applying a braking force to the wheel to stop the wheel from rotating, the stop assembly is matched with the brake assembly to counteract the reaction force of the wheel to the brake assembly, the brake in the prior art can only counteract the vertical reaction force on the contact surface of the wheel and cannot counteract the friction force in the tangential direction of the wheel, the friction force enables the brake to generate bending moment, and the fastening bolt is easy to break, the tread brake of the invention is provided with the stop assembly, the stop assembly is provided with an arc surface, the arc surface is used for counteracting the first acting force and the second acting force along the tangential direction of the brake assembly, the reliability of the connection between the brake assembly and a bogie is ensured, and the problem of poor stability of the tread brake in the prior art on the bogie is solved, easily fall off.
The above is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and various modifications and changes will occur to 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 (11)
1. A tread brake for braking a wheel (40) of a railway vehicle, the tread brake comprising:
a brake assembly (10) mounted on a bogie (30) of the rail vehicle to apply a braking force to the wheel (40);
a stop assembly (20) connected to both the brake assembly (10) and the truck (30) such that when the brake assembly (10) applies a braking force to the wheel (40), the stop assembly (20) acts to stop a first force and a second force experienced by the brake assembly (10);
the stop assembly (20) comprises a plurality of stop structures which are connected in sequence, and the stop structures are integrally formed.
2. The tread brake according to claim 1, wherein the plurality of stop structures are connected in series to form a stop assembly (20) having an arcuate surface.
3. Tread brake according to claim 2, characterized in that the brake assembly (10) comprises a connecting column (11), which connecting column (11) is connected to the side of the bogie (30) facing the brake assembly (10), the brake assembly (10) being connected to the bogie (30) via the connecting column (11).
4. Tread brake according to claim 3, characterized in that the connecting column (11) is a cylinder, the curved surface fitting the outer surface of the cylinder.
5. The tread brake according to any of claims 1 to 4, wherein the stop assembly (20) is provided at an end of the brake assembly (10) remote from the wheel (40).
6. The tread brake according to any of claims 1 to 4, wherein the stop assembly (20) is connected to the bogie (30) by fasteners.
7. The tread brake according to any one of claims 2 to 4, wherein the arc of the arcuate surface is greater than or equal to 90 ° and less than 360 °.
8. The tread brake according to any of claims 2 to 4, wherein the opening of the arcuate surface is directed towards the wheel (40).
9. The tread brake according to claim 3, wherein the brake assembly (10) comprises a plurality of connecting studs (11), at least one connecting stud (11) being arranged at an end of the bogie (30) remote from the wheel (40), the tread brake comprising at least one stop assembly (20), the stop assembly (20) being arranged at the periphery of the connecting stud (11).
10. A rail vehicle comprising a wheel, a bogie (30) connected to the wheel and a tread brake arranged on the bogie (30), characterized in that the tread brake is a tread brake according to any one of claims 1 to 9.
11. The rail vehicle of claim 10, wherein the truck (30) is removably connected to the tread brake.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910741626.0A CN112389489A (en) | 2019-08-12 | 2019-08-12 | Tread brake and have its rail vehicle |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910741626.0A CN112389489A (en) | 2019-08-12 | 2019-08-12 | Tread brake and have its rail vehicle |
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| Publication Number | Publication Date |
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| CN112389489A true CN112389489A (en) | 2021-02-23 |
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| CN201910741626.0A Pending CN112389489A (en) | 2019-08-12 | 2019-08-12 | Tread brake and have its rail vehicle |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113954900A (en) * | 2021-10-28 | 2022-01-21 | 中车南京浦镇车辆有限公司 | Bogie and railway vehicle with same |
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2019
- 2019-08-12 CN CN201910741626.0A patent/CN112389489A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113954900A (en) * | 2021-10-28 | 2022-01-21 | 中车南京浦镇车辆有限公司 | Bogie and railway vehicle with same |
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