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Foot-shaped hand brake lever

A hand-brake lever and fixed-end technology, which is applied in the fields of railway transportation equipment and railway freight car hand-brake levers, can solve the problems of amplifying the output force of the hand-brake and the inability to set the hand-brake lever, etc.

Pending Publication Date: 2021-09-10
CRRC MEISHAN
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, for the hand brake devices of railway wagons with bogie integrated braking, the hand brake devices are generally arranged in the traction beam area of ​​the vehicle. Due to the structural space limitation of the vehicle, it is impossible to install the movable pulley or the hand brake lever of the transmission style, so it is urgent It is necessary to design and develop a new type of hand brake lever according to the vehicle structure space, which is used to amplify the output force of the hand brake

Method used

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  • Foot-shaped hand brake lever
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Embodiment Construction

[0028] The present invention will be further described below in conjunction with specific embodiments, see Figure 1 ~ Figure 4 , the present invention provides a "foot" shaped hand brake lever, the hand brake lever is shaped like a "foot", processed by forging or cut from high-strength sheet metal, according to the needs of strength calculation, the hand brake lever The thickness of the brake lever is 18mm-25mm, preferably 20mm. 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 connection hole 4, and according to the strength requirement, the diameter of the connection hole 4 at each end can be increased step by step according to the specification of the connecting round pin, In this embodiment, the diameters of the connecting holes 4 at each end are φ21mm. The outer circles of the input end 1, the output end 2 and the fixed end 3 and the corresponding connection holes 4 are concentric (see figure 2 ), acco...

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Abstract

A foot-shaped hand brake lever is in a foot-like 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 mounted on a vehicle body, the input end is connected with a hand brake chain assembly, and the output end is connected with a unit brake device on a 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 larger than L2, and the included angle between the two force arms is theta. The hand brake lever adopts the foot-like design, so the hand brake lever is novel, simple and reliable in structure, replaces a hand brake pulley, is suitable for railway vehicles with short traction beams and narrow spaces, is used for amplifying the output force of a hand brake, and can meet the parking requirements of the vehicles on specified ramps; moreover, 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 as to change the amplification factor of the lever.

Description

Technical field: [0001] The invention relates to the technical field of railway transportation equipment, in particular to the technical field of hand brake levers for railway wagons, in particular to a "foot" shaped hand brake lever. Background technique: [0002] The hand brake device is one of the important components of the railway freight car, which is used when the vehicle is parked or shunted at the station. In order to ensure that the vehicle can be parked and braked on a specified slope, for vehicles whose foundation brake device is arranged on the vehicle body, the hand brake device generally uses a movable pulley or a horizontal hand brake lever to amplify the force of the hand brake. output force. [0003] However, for the hand brake devices of railway wagons with bogie integrated brakes, the hand brake devices are generally arranged in the traction beam area of ​​the vehicle. Due to the structural space limitation of the vehicle, it is impossible to install a m...

Claims

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Application Information

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IPC IPC(8): B61H13/02
CPCB61H13/02
Inventor 杨清帆杨诗卫彭燎张超德杨发先徐誌谷美娜杜英邹梦竹
Owner CRRC MEISHAN
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