Unit braking cylinder with hand braking device

Abstract

The invention discloses a unit braking cylinder with a hand braking device. The unit braking cylinder comprises an integral diaphragm, a piston assembly, a cylinder assembly, a cylinder cover assembly, a sealing pad, a sealing ring, a supporting ring, a lubricating sleeve, a relieving spring, a hand braking lever, push iron, a dustproof sleeve, an automatic brake lining gap one-way adjusting device and a manual brake lining gap adjusting device. The push iron is fixedly connected with a piston rod. The hand braking lever is in pin joint with a hand braking seat fixedly connected to a cylinder cover. The bidirectional function of force during hand braking is achieved, the clamping stagnation phenomenon can be avoided, a double-nut conical surface clutch structure is adopted for the automatic brake lining gap one-way adjusting device, the structure is simple, the accessory universality is good, a protruding structure is adopted for a cylinder body, the cylinder body is integrally formed in a spinning mode, the airtightness of the cylinder body can be ensured, middle-arranged type installation of the unit braking cylinder can also be achieved, and the unit braking cylinder is complete in function, compact in structure and capable of meeting the requirement for fast truck loading.

Description

technical field [0001] The invention relates to the technical field of rapid railway freight car braking, in particular to a unit brake cylinder with a hand brake device. Background technique [0002] At present, the running speed of domestic railway freight cars is below 120km / h. Therefore, the braking system adopts tread braking. [0003] With the rise of e-commerce in recent years, the market presents an urgent demand for railway wagons with a speed of 160km / h and above. As the speed of trucks increases, the braking power will increase quadratically when the braking distance is constant. The braking capacity of the traditional one-side tread where the brake shoes are in contact with the wheels is restricted by thermal stress and cannot meet the requirements of the above-mentioned speed vehicles. parking request. For this reason, disc brakes are required on fast railway wagons. Instead of the traditional friction brake between the brake shoe and the tread, the disc brake...

AI Technical Summary

Problems solved by technology

[0005] However, the piston stroke of the brake cylinder of traditional trucks is relatively large, and the two-way automatic adjustment of the brake shoe clearance adjuster not only wastes the function, but also has a bulky structure and large external dimensions, which can no longer meet the loading requirements of the disc brake device.

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