CN215204897U

CN215204897U - Foot-shaped hand brake lever

Info

Publication number: CN215204897U
Application number: CN202121425561.8U
Authority: CN
Inventors: 杨清帆; 杨诗卫; 彭燎; 张超德; 杨发先; 徐誌; 谷美娜; 杜英; 邹梦竹
Original assignee: CRRC Meishan Co Ltd
Current assignee: CRRC Meishan Co Ltd
Priority date: 2021-06-25
Filing date: 2021-06-25
Publication date: 2021-12-17
Anticipated expiration: 2031-06-25

Abstract

A foot-shaped hand brake lever is in an imitation foot shape and is provided with an input end, an output end and a fixed end, wherein each end is provided with a connecting hole; the fixed end is connected with a fixed fulcrum seat arranged on the vehicle body, the input end is connected with a chain assembly of a hand brake, and the output end is connected with a unit brake device on the bogie; the connecting line of the input end and the fixed end is an input force arm L1, the connecting line of the output end and the fixed end is an output force arm L2, L1 is greater than L2, and the included angle between the two force arms is theta. The hand brake lever adopts the design of imitating a foot shape, has novel, simple and reliable structure, replaces a hand brake pulley, is suitable for railway vehicles with short draw beams and narrow space, is used for amplifying the output force of a hand brake, and can meet the requirement of parking the vehicles on a specified ramp. The lengths of the input force arm L1 and the output force arm L2 and the included angle theta between the two force arms can be adjusted according to design requirements, so that the magnification of the lever can be changed.

Description

Foot-shaped hand brake lever

The technical field is as follows:

the utility model relates to a technical field is equipped in the railway transportation, in particular to railway freight car hand brake lever technical field, specific saying so, is a "sufficient" shape hand brake lever.

Background art:

the hand brake device is one of the important components of a railway wagon, and is used when a vehicle is parked at a station or is shunting. In order to ensure that the vehicle can be parked and braked on a specified slope, for the vehicle with the basic brake device arranged on the vehicle body, the hand brake device generally adopts a movable pulley or a horizontal hand brake lever to amplify the output force of the hand brake.

However, for the hand brake device of the railway wagon adopting the bogie integrated brake, the hand brake device is generally arranged in the region of a vehicle traction beam, and because the limitation of the vehicle structural space cannot be realized by arranging a movable pulley or a transmission-type hand brake lever, a novel hand brake lever is urgently needed to be designed and developed according to the vehicle structural space for amplifying the output force of the hand brake.

The invention content is as follows:

the utility model aims to solve the technical problem that a "sufficient" shape hand brake lever is provided, is applicable to short draw beam, the narrow and small railway vehicle in space for the output power of transmission and enlarged hand brake satisfies the requirement of vehicle parking braking on the regulation slope.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

the utility model provides a foot-shaped hand brake lever, which is in an imitation of foot shape and is provided with an input end, an output end and a fixed end, and each end is provided with a connecting hole; the fixed end is connected with a fixed fulcrum seat arranged on the vehicle body, the input end is connected with a chain assembly of a hand brake, and the output end is connected with a unit brake device on the bogie; the connecting line of the input end and the fixed end is an input force arm L1, the connecting line of the output end and the fixed end is an output force arm L2, and the included angle between the two force arms is theta.

The hand brake lever is machined in a forging mode or cut by adopting a high-strength plate material.

The thickness of the hand braking lever is 18 mm-25 mm.

The aperture of each end connecting hole is phi 21 mm.

The aperture of each end connecting hole is gradually increased according to the specification of the connecting round pin.

The excircle of the input end, the excircle of the output end and the excircle of the fixed end are concentric with the connecting holes corresponding to the excircle of the input end, the excircle of the output end and the excircle of the fixed end.

According to the strength requirement, the excircle of the input end, the excircle of the output end and the excircle of the fixed end and the connecting hole corresponding to the excircle can be made into an eccentric structure.

The input force arm L1 is larger than the output force arm L2.

The length of the input force arm L1 and the output force arm L2 and the included angle theta between the two force arms are determined according to the use requirements of different vehicles and the space structure of the vehicles.

Compared with the prior art, the utility model discloses following beneficial effect has:

1. the utility model adopts the design of imitating the shape of feet, has novel structure and is greatly different from the traditional brake lever with three collinear points.

2. The utility model discloses a forge or sheet material cut system processing and make, simple structure, reliable.

3. The utility model is used for enlarge the output power of hand brake machine, can satisfy the requirement of vehicle in regulation ramp parking.

4. The utility model discloses replaced hand brake pulley, be applicable to short draw beam, the narrow and small railway vehicle in space.

5. The utility model discloses a contained angle theta can be adjusted according to the design needs between the length of the input arm of force L1, the output arm of force L2 and the two arm of forces for change the magnification of lever.

To sum up, the utility model is suitable for a because the motorcycle type of the unable hand brake lever that sets up movable pulley or driven three point collineation of structural space restriction also can be applied to the motorcycle type that multiple adoption bogie unit braking, draw the beam region and arrange hand braking device for enlarge hand brake machine's output power. And the utility model discloses simple structure, reliable, overall dimension, magnification are adjustable as required according to the design, have extensive suitability.

Description of the drawings:

fig. 1 is a schematic perspective view of the present invention;

fig. 2 is a front view (concentric) of a first embodiment of the present invention;

fig. 3 is a front view (eccentric) of a first embodiment of the present invention;

fig. 4 is a front view of a second embodiment of the present invention.

Reference numerals:

1-input end, 2-output end, 3-fixed end and 4-connecting hole.

The specific implementation mode is as follows:

the utility model discloses it is right to combine specific embodiment mode further below, refer to fig. 1-4, the utility model provides a "sufficient" shape hand brake lever, this hand brake lever be "sufficient" shape, adopt the forging mode processing to make or adopt the sheet material of high strength to cut the system, according to intensity calculation needs, this hand brake lever's thickness is 18mm ~ 25mm, and preferred thickness is 20 mm. The hand brake lever is provided with an input end 1, an output end 2 and a fixed end 3, each end is provided with a connecting hole 4, the aperture of each end connecting hole 4 can be gradually increased according to the specification of a connecting round pin according to the strength requirement, and the aperture of each end connecting hole 4 is phi 21mm in the embodiment. The excircle of input 1, output 2 and stiff end 3 and connecting hole 4 corresponding to it are concentric (see figure 2), according to the intensity needs, the excircle of input 1, output 2 and stiff end 3 and connecting hole 4 corresponding to it also can make eccentric structure (see figure 3). The fixed end 3 is connected with a fixed fulcrum seat arranged on the vehicle body, the input end 1 is connected with a hand brake chain assembly, and the output end 2 is connected with a unit brake device on the bogie; the connecting line of the input end 1 and the fixed end 3 is an input force arm L1, the connecting line of the output end 2 and the fixed end 3 is an output force arm L2, the input force arm L1 is longer than the output force arm L2, so that the purpose of amplifying the braking force is achieved, and the included angle between the two force arms is theta. The length of the input force arm L1 and the output force arm L2 and the included angle theta between the two force arms are determined according to different vehicles and vehicle space structures, the magnification of the lever is changed, and the hand brake lever can also be made into a foot shape or a triangle shape (see figure 4) to meet the use requirements of different vehicles.

It should be noted that the foregoing is only illustrative of some of the principles of the invention, as numerous modifications and variations will readily occur to those skilled in the art. Accordingly, the description is not intended to limit the invention to the exact construction and operation shown and described, and accordingly, all suitable modifications and equivalents may be resorted to, falling within the scope of the invention.

Claims

1. A foot-shaped hand brake lever is characterized in that: the hand brake lever is in an imitated foot shape, an input end (1), an output end (2) and a fixed end (3) are arranged on the hand brake lever, and each end is provided with a connecting hole (4); the fixed end (3) is connected with a fixed fulcrum seat arranged on the vehicle body, the input end (1) is connected with a hand brake chain assembly, and the output end (2) is connected with a unit brake device on the bogie; the connecting line of the input end (1) and the fixed end (3) is an input force arm L1, the connecting line of the output end (2) and the fixed end (3) is an output force arm L2, and the included angle between the two force arms is theta.

2. The "foot" shaped hand brake lever of claim 1, wherein: the hand brake lever is machined in a forging mode or cut by adopting a high-strength plate material.

3. The "foot" shaped hand brake lever of claim 1, wherein: the thickness of the hand braking lever is 18 mm-25 mm.

4. The "foot" shaped hand brake lever of claim 1, wherein: the aperture of each end connecting hole (4) is phi 21 mm.

5. The "foot" shaped hand brake lever of claim 1, wherein: the aperture of each end connecting hole (4) is gradually increased according to the specification of the connecting round pin.

6. The "foot" shaped hand brake lever of claim 1, wherein: the excircle of input end (1), output end (2) and stiff end (3) and connecting hole (4) that correspond with it be concentric.

7. The "foot" shaped hand brake lever of claim 1, wherein: according to the strength requirement, the excircle of the input end (1), the excircle of the output end (2) and the excircle of the fixed end (3) and the connecting hole (4) corresponding to the excircle can be made into an eccentric structure.

8. The "foot" shaped hand brake lever of claim 1, wherein: the input force arm L1 is larger than the output force arm L2.

9. The "foot" shaped hand brake lever of claim 1, wherein: the lengths of the input force arm L1 and the output force arm L2 and the included angle theta between the two force arms are determined according to the use requirements of different vehicles and the space structure of the vehicles.