CN112977533A - Rail vehicle and hand braking system thereof - Google Patents
Rail vehicle and hand braking system thereof Download PDFInfo
- Publication number
- CN112977533A CN112977533A CN201911291945.2A CN201911291945A CN112977533A CN 112977533 A CN112977533 A CN 112977533A CN 201911291945 A CN201911291945 A CN 201911291945A CN 112977533 A CN112977533 A CN 112977533A
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- wire rope
- hand brake
- pulley
- fixedly connected
- brake system
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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
- B61H13/00—Actuating rail vehicle brakes
- B61H13/02—Hand or other personal actuation
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B61—RAILWAYS
- B61H—BRAKES OR OTHER RETARDING DEVICES SPECIALLY ADAPTED FOR RAIL VEHICLES; ARRANGEMENT OR DISPOSITION THEREOF IN RAIL VEHICLES
- B61H11/00—Applications or arrangements of braking or retarding apparatus not otherwise provided for; Combinations of apparatus of different kinds or types
- B61H11/06—Applications or arrangements of braking or retarding apparatus not otherwise provided for; Combinations of apparatus of different kinds or types of hydrostatic, hydrodynamic, or aerodynamic brakes
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
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- Fluid Mechanics (AREA)
- Braking Arrangements (AREA)
Abstract
The embodiment of the application relates to the technical field of railway vehicles, in particular to a railway vehicle and a hand braking system thereof. The hand braking system comprises a hand brake, a windable connecting piece, a balance pulley, a pulley mounting rack and a rope; the hand brake comprises a handle, an input shaft and an output shaft; the handle is rotatably arranged on the input shaft and is used for driving the input shaft to rotate; the windable connecting piece is fixedly connected between the output shaft and the pulley mounting rack and is used for converting the rotary motion of the output shaft into linear motion; the balance pulley is rotatably mounted on the pulley mounting frame around a rotating shaft; one end of the rope is fixedly connected with the first brake cylinder, and the other end of the rope is fixedly connected with the second brake cylinder after bypassing the balance pulley. The hand brake system can provide a large braking force.
Description
Technical Field
The application relates to the technical field of railway vehicles, in particular to a railway vehicle and a hand braking system thereof.
Background
The hand braking system is an important component of the railway passenger car braking system. Hand brake systems are typically used in the following conditions: when shunting operation is carried out, the vehicle speed is adjusted or the vehicle is stopped, so that the shunting operation safety is ensured; when the train or the vehicle is parked on a sloping line, the train or the vehicle is prevented from sliding away; when the vehicle is at a platform or on a special line, the vehicle can be prevented from being blown away by strong wind by implementing the hand braking action. The existing hand braking system rotates a hand wheel through manpower, and a chain drives or a lever stirs a foundation braking device, so that a brake shoe compresses a wheel tread to brake a wheel. With the continuous development of railway passenger and freight train technology in China, if a large ramp or heavy vehicle load needs larger braking force, the problem of insufficient braking force of the existing hand braking system is caused.
Disclosure of Invention
The embodiment of the application provides a railway vehicle and a hand braking system thereof, wherein the hand braking system can provide large braking force.
According to a first aspect of embodiments of the present application, there is provided a hand brake system comprising a hand brake, a windable coupling, a balance pulley, a pulley mount, and a cable;
the hand brake comprises a handle, an input shaft and an output shaft;
the handle is rotatably arranged on the input shaft and is used for driving the input shaft to rotate;
the windable connecting piece is fixedly connected between the output shaft and the pulley mounting rack and is used for converting the rotary motion of the output shaft into linear motion;
the balance pulley is rotatably mounted on the pulley mounting frame around a rotating shaft;
one end of the rope is fixedly connected with the first brake cylinder, and the other end of the rope is fixedly connected with the second brake cylinder after bypassing the balance pulley.
Preferably, the cable comprises a steel cable, a first steel cable and a second steel cable, wherein:
the steel cable bypasses the balance pulley, wherein one end of the steel cable is fixedly connected with the first steel cable, and the other end of the steel cable is fixedly connected with the second steel cable;
the first steel wire rope is fixedly connected with the first brake cylinder;
and the second steel wire rope is fixedly connected with the second brake cylinder.
Preferably, the cable further includes a first return spring sleeved on the periphery of the first steel wire rope, a first limiting member fixedly mounted on the first steel wire rope, a first limiting bracket for penetrating the first steel wire rope, a second return spring sleeved on the periphery of the second steel wire rope, a second limiting member fixedly mounted on the second steel wire rope, and a second limiting bracket for penetrating the second steel wire rope;
the first limiting part is positioned between the first limiting bracket and the first brake cylinder; the first reset spring is positioned between the first limiting piece and the first limiting bracket and used for resetting the first steel wire rope;
the second limiting part is positioned between the second limiting bracket and the second brake cylinder; the second return spring is located between the second limiting part and the second limiting support and used for enabling the second steel wire rope to return.
Preferably, the reversing mechanism is further included for reversing the first wire rope and the second wire rope.
Preferably, the reversing mechanism is formed by a fixed pulley.
Preferably, a guide pulley for guiding the coilable attachment member is further included.
Preferably, the coilable connector is a chain, wire rope or chain.
Preferably, the hand brake comprises a transmission mechanism in transmission connection between the input shaft and the output shaft.
Preferably, the transmission mechanism is a gear transmission mechanism.
According to a second aspect of the embodiments of the present application, there is also provided a rail vehicle, which includes a vehicle body, and further includes any one of the hand brake systems provided in the above technical solutions, where the hand brake system is installed on the vehicle body.
The railway vehicle and the hand braking system thereof provided by the embodiment of the application have the following beneficial effects:
when the hand brake system is used for braking, force is applied to the hand brake through the handle, the output shaft of the hand brake rotates to enable the windable connecting piece to wind, the balance pulley is pulled to move through the windable connecting piece, the rope which bypasses the balance pulley moves along with the balance pulley, and the two brake cylinders are controlled to generate braking force through the two ends of the rope respectively. Because two brake cylinders can be controlled simultaneously to the hand braking system of this application and braking force is produced, consequently, above-mentioned hand braking system can realize the function of two brake cylinders of a hand brake control, can provide great braking force, has solved current rail vehicle and has parked not enough problem of braking force when heavily loaded or the great circuit of slope.
In addition, the hand brake system can simultaneously control the two brake cylinders to generate braking force, when one brake cylinder is stuck, the other brake cylinder can still apply the braking force, and the safe braking of the railway vehicle can be 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 application, illustrate embodiment(s) of the application and together with the description serve to explain the application and not to limit the application. In the drawings:
fig. 1 is a schematic structural diagram of a hand braking system according to an embodiment of the present disclosure;
FIG. 2 is a schematic top view of the hand brake system provided in FIG. 1;
FIG. 3 is a schematic top view of the hand brake system provided in FIG. 1;
FIG. 4 is a schematic view of the lower portion of the hand brake system provided in FIG. 1;
fig. 5 is a schematic view illustrating an assembly structure of a first wire rope portion in the hand brake system provided in fig. 4.
Reference numerals:
1-a hand brake system; 2-a vehicle body;
11-hand brake; 12-a handle; 13-a coilable connector; 14-a balance pulley; 15-a pulley mounting frame; 16-a rope; 17-a fixed pulley; 18-a guide pulley; 21-a first brake cylinder; 22-a second brake cylinder;
161-a wire rope; 162-a first wire rope; 163-second steel cord; 164-a first return spring; 165-a first stop; 166-a first limit bracket; 167-a second return spring; 168-a second stop; 169-second limit bracket.
Detailed Description
In order to make the technical solutions and advantages of the embodiments of the present application more apparent, the following further detailed description of the exemplary embodiments of the present application with reference to the accompanying drawings makes it clear that the described embodiments are only a part of the embodiments of the present application, and are not exhaustive of all embodiments. 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 embodiment of the application provides a railway vehicle, which comprises a vehicle body 2 and a hand braking system 1 arranged on the vehicle body 2; the hand brake system 1 is operated by a human power to press brake shoes against wheel treads to brake a vehicle.
As shown in the structure of fig. 1, the hand brake system 1 includes a hand brake 11, a windable coupling 13, a balance pulley 14, a pulley mounting bracket 15, and a rope 16; as shown in the structure of fig. 1, the hand brake 11 may be directly mounted on the end wall of the vehicle body 2, or the mounting frame may be welded on the end wall of the vehicle body 2, and then the hand brake 11 is mounted on the mounting frame; the hand brake 11 includes a handle 12, an input shaft (not shown), and an output shaft (not shown); a handle 12 rotatably mounted to the input shaft for driving the input shaft to rotate; when the hand brake is performed, an operator applies a braking force through the handle 12 and outputs the braking force through the output shaft of the hand brake 11; the hand brake 11 may further include a transmission mechanism drivingly connected between the input shaft and the output shaft; the transmission mechanism can be a gear transmission mechanism;
the windable connecting piece 13 is fixedly connected between the output shaft and the pulley mounting frame 15 and is used for converting the rotary motion of the output shaft into linear motion; as shown in fig. 1, 2 and 3, the windable connecting member 13 is a chain, one end of the chain is fixedly connected to the hand brake 11, more specifically, one end of the chain is fixedly connected to the output shaft, and the other end of the chain is fixedly connected to the pulley mounting bracket 15; the windable connecting piece 13 is connected between the output shaft of the hand brake 11 and the pulley mounting bracket 15, so that when the output shaft rotates, the windable connecting piece 13 can be wound on the output shaft to pull the pulley mounting bracket 15 to move; the coilable connecting member 13 can be a chain, a wire rope, a steel cable 161 or a chain, or can be other types of components, and in the present application, the chain is taken as an example for illustration;
the balance pulley 14 is rotatably mounted to the pulley mounting bracket 15 about a rotation shaft; as shown in the structure of fig. 1, 2 and 3, a pulley mounting bracket 15 is fixedly mounted at the bottom end of the chain, a rotating shaft is mounted on the pulley mounting bracket 15, and a balance pulley 14 is mounted on the rotating shaft, so that the balance pulley 14 can rotate around the rotating shaft;
one end of the cable 16 is fixedly connected with the first brake cylinder 21, and the other end of the cable is fixedly connected with the second brake cylinder 22 after passing through the balance pulley 14. As shown in fig. 1 and 4, a first brake cylinder 21 and a second brake lever are fixedly connected to two ends of a cable 16, respectively, the middle of the cable 16 is wound on a balance pulley 14, when the balance pulley 14 moves upwards under the driving of a pulley mounting frame 15, the cable 16 is stretched, and the ends of the cable 16 control the first brake cylinder 21 and the second brake cylinder 22 to brake, so as to generate a braking force; by providing brake cylinders at both ends of the cable 16, when the operator applies a braking force to the hand brake 11, both brake cylinders can be controlled simultaneously to perform braking.
When braking is performed by using the hand brake system 1, the hand brake 11 is applied with force by the handle 12, the output shaft of the hand brake 11 is rotated to wind the windable coupling 13, the balance pulley 14 is pulled by the windable coupling 13 to move, the rope 16 wound around the balance pulley 14 moves along with the balance pulley 14, and both ends of the rope 16 control both brake cylinders to generate braking force. Because two brake cylinders can be controlled simultaneously to hand brake system 1 of this application and braking force is produced, consequently, above-mentioned hand brake system 1 can realize the function of two brake cylinders of a hand brake 11 control, can provide great braking force, has solved current rail vehicle and has parked not enough problem of braking force when heavily loaded or the great circuit of slope.
Meanwhile, the hand brake system 1 can simultaneously control the two brake cylinders to generate braking force, when one brake cylinder is clamped, the other brake cylinder can still apply the braking force, and the safe braking of the railway vehicle can be ensured, so that the hand brake system 1 further has an anti-clamping function, and the safety and the reliability of the braking of the railway vehicle can be improved.
In a particular embodiment, as shown in the configuration of fig. 4 and 5, the cable 16 includes a steel cable 161, a first steel cable 162 and a second steel cable 163, wherein:
the steel cable 161 passes around the balance pulley 14, wherein one end is fixedly connected with the first steel cable 162, and the other end is fixedly connected with the second steel cable 163; the first steel wire rope 162 is fixedly connected with the first brake cylinder 21; the second cable 163 is fixedly connected to the second brake cylinder 22. As shown in the 3-configuration, the wire rope 161 may extend in a vertical direction, and the first wire rope 162 and the second wire rope 163 are laid on the bottom of the vehicle body 2.
Because one end fixedly connected with first wire rope 162, the other end fixedly connected with second wire rope 163 behind the wire rope 161 bypass balance pulley 14, first wire rope 162 and first brake cylinder 21 fixed connection, second wire rope 163 and second brake cylinder 22 fixed connection divide into two through the output power of wire rope 161 hand brake 11, can realize controlling two brake cylinders, have not only improved the brake force, but also improved the reliability of braking.
Specifically, as shown in fig. 4 and fig. 5, the cable 16 may further include a first return spring 164 sleeved on the outer periphery of the first steel cable 162, a first limiting member 165 fixedly installed on the first steel cable 162, a first limiting bracket 166 for passing through the first steel cable 162, a second return spring 167 sleeved on the outer periphery of the second steel cable 163, a second limiting member 168 fixedly installed on the second steel cable 163, and a second limiting bracket 169 for passing through the second steel cable 163; the first limiting member 165 is positioned between the first limiting bracket 166 and the first brake cylinder 21; the first return spring 164 is located between the first limiting member 165 and the first limiting bracket 166, and is used for returning the first steel wire rope 162; a second limit stop 168 is located between the second limit bracket 169 and the second brake cylinder 22; the second return spring 167 is located between the second limiting member 168 and the second limiting bracket 169, and is used for returning the second wire rope 163.
When the first steel wire rope 162 is pulled by braking, the first return spring 164 is compressed under the restriction of the first limiting bracket 166 and the first limiting member 165 by the first return spring 164 sleeved on the periphery of the first steel wire rope 162, the first limiting member 165 fixedly installed on the first steel wire rope 162 and the first limiting bracket 166 used for penetrating the first steel wire rope 162, and the first return spring 164 is arranged between the first limiting member 165 and the first limiting bracket 166; when the operator stops applying force to handle 12, compressed first return spring 164 is automatically returned by the elastic force, and first brake cylinder 21 and first wire 162 are returned to stop braking.
Similarly, the second return spring 167 is disposed between the second limiting member 168 and the second limiting bracket 169 through the second return spring 167 sleeved on the outer periphery of the second steel wire rope 163, the second limiting member 168 fixedly mounted on the second steel wire rope 163, and the second limiting bracket 169 for passing through the second steel wire rope 163, and when the second steel wire rope 163 is pulled by braking, the second return spring 167 is compressed under the limitation of the second limiting member 168 and the second limiting bracket 169; when the operator stops applying the force to the handle 12, the compressed second return spring 167 is automatically returned by the elastic force, so that the second brake cylinder 22 and the second wire rope 163 are returned to stop braking.
Through the arrangement of the first return spring 164 and the second return spring 167, when the hand brake system 1 stops applying force and releases braking, the brake cylinder can be ensured to be smoothly reset under the action of the elastic force of the compressed return spring, and the brake pad is separated from the wheel tread and is restored to a released state. The return spring can be arranged in a mechanism on the vehicle or a mechanism under the vehicle according to the specific conditions of the space, the requirement and the like of the railway vehicle, and the realized functions are the same.
In order to smoothly control the brake cylinders by the first and second wire ropes 162 and 163, the hand brake system 1 may further include a reversing mechanism for reversing the directions of the first and second wire ropes 162 and 163. As shown in the configuration of fig. 5, a steering mechanism including three fixed pulleys 17 is provided in the extending direction of first wire 162 connected to first brake cylinder 21, and the direction of extension of the end of first wire 162 is made to coincide with the force receiving direction of first brake cylinder 21 by turning first wire 162 using fixed pulleys 17. Similarly, a direction changing mechanism may be provided in the extending direction of the second wire 163 so that the extending direction of the end of the second wire 163 matches the force receiving direction of the second brake cylinder 22. In actual use, the number and the positions of the fixed pulleys 17 can be determined according to the actual condition of the brake cylinder.
As shown in the structure of fig. 1, the hand brake system 1 may further include a guide pulley 18 for guiding the windable coupling member 13, the windable coupling member 13 may be extended along a predetermined path by the guide pulley 18, an interference phenomenon may be prevented by the guide pulley 18, and the windable coupling member 13 may be smoothly moved by the guide pulley 18.
In the various embodiments, the steel cable 161 is adopted to transmit the braking force, which is beneficial to meeting the air tightness and fire prevention requirements of the whole vehicle; because the steel cable 161 comprises an inner steel belt and a housing sleeved outside the steel belt, during use, force can be transmitted through the inner steel belt, the steel belt can move smoothly inside the housing, namely the housing is fixed, and the steel belt slides inside the housing, so that force between the hand brake 11 and the brake cylinder is transmitted through the inner steel belt.
While the preferred embodiments of the present application have been described, additional variations and modifications in those embodiments may occur to those skilled in the art once they learn of the basic inventive concepts. Therefore, it is intended that the appended claims be interpreted as including preferred embodiments and all alterations and modifications as fall within the scope of the application.
It will be apparent to those skilled in the art that various changes and modifications may be made in the present application without departing from the spirit and scope of the application. Thus, if such modifications and variations of the present application fall within the scope of the claims of the present application and their equivalents, the present application is intended to include such modifications and variations as well.
Claims (10)
1. A hand brake system is characterized by comprising a hand brake, a windable connecting piece, a balance pulley, a pulley mounting rack and a rope;
the hand brake comprises a handle, an input shaft and an output shaft;
the handle is rotatably arranged on the input shaft and is used for driving the input shaft to rotate;
the windable connecting piece is fixedly connected between the output shaft and the pulley mounting rack and is used for converting the rotary motion of the output shaft into linear motion;
the balance pulley is rotatably mounted on the pulley mounting frame around a rotating shaft;
one end of the rope is fixedly connected with the first brake cylinder, and the other end of the rope is fixedly connected with the second brake cylinder after bypassing the balance pulley.
2. The hand brake system of claim 1, wherein the cable comprises a wire rope, a first wire rope, and a second wire rope, wherein:
the steel cable bypasses the balance pulley, wherein one end of the steel cable is fixedly connected with the first steel cable, and the other end of the steel cable is fixedly connected with the second steel cable;
the first steel wire rope is fixedly connected with the first brake cylinder;
and the second steel wire rope is fixedly connected with the second brake cylinder.
3. The hand brake system of claim 2, wherein the cable further comprises a first return spring sleeved on the periphery of the first steel wire rope, a first limiting member fixedly mounted on the first steel wire rope, a first limiting bracket for passing through the first steel wire rope, a second return spring sleeved on the periphery of the second steel wire rope, a second limiting member fixedly mounted on the second steel wire rope, and a second limiting bracket for passing through the second steel wire rope;
the first limiting part is positioned between the first limiting bracket and the first brake cylinder; the first reset spring is positioned between the first limiting piece and the first limiting bracket and used for resetting the first steel wire rope;
the second limiting part is positioned between the second limiting bracket and the second brake cylinder; the second return spring is located between the second limiting part and the second limiting support and used for enabling the second steel wire rope to return.
4. The hand brake system of claim 3, further comprising a reversing mechanism for reversing the first and second wire ropes.
5. The hand brake system of claim 4, wherein the reversing mechanism is comprised of a fixed pulley.
6. The hand brake system of claim 1, further comprising a guide pulley for guiding the windable attachment.
7. The hand brake system of any one of claims 1-6, wherein the coilable connector is a chain, a wire rope, or a chain.
8. A hand brake system according to any one of claims 1 to 6, wherein the hand brake includes a transmission mechanism drivingly connected between the input shaft and the output shaft.
9. The hand brake system of claim 8, wherein the transmission is a gear transmission.
10. A rail vehicle comprising a vehicle body, characterized in that it further comprises a hand brake system according to any one of claims 1-9, said hand brake system being mounted to said vehicle body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911291945.2A CN112977533B (en) | 2019-12-16 | 2019-12-16 | Rail vehicle and hand braking system thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911291945.2A CN112977533B (en) | 2019-12-16 | 2019-12-16 | Rail vehicle and hand braking system thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN112977533A true CN112977533A (en) | 2021-06-18 |
| CN112977533B CN112977533B (en) | 2023-03-21 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911291945.2A Active CN112977533B (en) | 2019-12-16 | 2019-12-16 | Rail vehicle and hand braking system thereof |
Country Status (1)
| Country | Link |
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| CN (1) | CN112977533B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2024027069A1 (en) * | 2022-08-05 | 2024-02-08 | 中车唐山机车车辆有限公司 | Hand brake system and railway vehicle |
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| CN208376727U (en) * | 2018-06-28 | 2019-01-15 | 德韧干巷汽车系统（上海）有限公司 | A kind of hand brake stay cable connection structure |
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| EP1607296A1 (en) * | 2004-06-16 | 2005-12-21 | Peugeot Citroen Automobiles S.A. | Secondary electric vehicle brake, including a force returning device |
| CN200951777Y (en) * | 2006-09-15 | 2007-09-26 | 沈阳合普铁道科技有限公司 | Sliding-block linkage mechanism and apparatus of parking antiskidding device for railway stock |
| CN101778746A (en) * | 2007-08-09 | 2010-07-14 | 卢卡斯汽车股份有限公司 | Fixing plate for an emergency brake lever of a drum brake in the initial installation for generating a permanent pre-stressing of the bowden cable |
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| WO2024027069A1 (en) * | 2022-08-05 | 2024-02-08 | 中车唐山机车车辆有限公司 | Hand brake system and railway vehicle |
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| Publication number | Publication date |
|---|---|
| CN112977533B (en) | 2023-03-21 |
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