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Locking mechanism

A locking mechanism and ratchet technology, applied in the direction of brake actuator, gear shifting mechanism, mechanical equipment, etc., can solve the problem of high labor intensity, and achieve the effect of alleviating labor intensity, maintaining braking force, and preventing return

Active Publication Date: 2018-10-16
MEISHAN CRRC BRAKE SCI & TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to provide a locking mechanism to improve the problem of too much labor intensity when braking in existing vehicles

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0053] refer to figure 1 , this embodiment provides a locking mechanism 40, including a front cover 30, an energy storage spring 44, an energy storage spring seat 43, a parking piston 42, a ratchet assembly 47 and an elastic sleeve 46, and the energy storage spring seat 43 is installed on the front cover 30, the parking piston 42 is slidingly connected with the front cover 30, the energy storage spring 44 is installed between the energy storage spring seat 43 and the parking piston 42, the energy storage spring 44 makes the energy storage spring seat 43 and the parking piston 42 have a tendency to be relatively far away, The ratchet assembly 47 is connected with the parking piston 42, and the ratchet assembly 47 can move together with the parking piston 42. One end of the elastic sleeve 46 is provided with a plurality of conical surfaces 463, and the plurality of conical surfaces 463 are arranged around the axis line of the elastic sleeve 46. The ratchet The movement of the co...

Embodiment 2

[0056] refer to Figure 2 to Figure 18 , The present embodiment provides a braking force maintaining device for railway wagons, including a cylinder block 10 , a piston assembly 50 , a cylinder body 20 , a front cover 30 , a release spring 60 and a locking mechanism 40 .

[0057] refer to Figure 4 , the cylinder base 10 is connected with the cylinder body 20 and the front cover 30 to form a sealed cavity 80, the piston assembly 50, the relief spring 60 and the locking mechanism 40 are installed in the cavity 80, and the cylinder base 10 is provided with an opening 11, The opening 11 communicates with the cavity 80, the piston assembly 50 is slidingly connected with the cylinder body 20, the piston assembly 50 can slide back and forth in the cavity 80, the locking mechanism 40 is used to fix the piston assembly 50, and the two ends of the relief spring 60 are respectively connected to The connection of the piston assembly 50 and the locking mechanism 40 is relieved by the spr...

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Abstract

The invention provides a locking mechanism, and belongs to the field of brake equipment. The locking mechanism comprises a front cover, an energy storage spring, an energy storage spring seat, a parking piston, a ratchet wheel assembly and an elastic sleeve, wherein the energy storage spring seat is installed on the front cover; the parking piston is slidably connected with the front cover; the energy storage spring is installed between the energy storage spring seat and the parking piston; the energy storage spring enables the energy storage spring seat and the parking piston to have a trendof relatively keeping away from each other; the ratchet wheel assembly is capable of moving with the parking piston; a plurality of conical surfaces are formed at one end of the elastic sleeve; and the ratchet wheel assembly moves to enable the plurality of conical surfaces to shrink or expand. The locking mechanism provided by the invention is capable of keeping a brake force; and during brake, the parking piston moves towards a direction away from the energy storage spring seat under the action of the energy storage spring to enable the conical surfaces of the elastic sleeve to shrink, a clamping force is formed for a piston rod due to the shrinking of the conical surfaces, so that the purpose of preventing the piston rod from retreating is achieved, and then the function of keeping thebrake force is achieved, and the labor intensity of operating personnel is greatly alleviated.

Description

technical field [0001] The invention relates to the field of brake equipment, in particular to a locking mechanism. Background technique [0002] The braking system of railway freight cars is usually equipped with a set of brake cylinders and a set of hand brakes. The brake cylinders complete the service braking (common braking, emergency braking). The hand brake is usually used in the following situations: It is used when parked; if the vehicle needs to stay on the ramp for a long time during operation, in order to prevent the leakage of the brake cylinder and naturally relieve the loss of braking effect, it is necessary to tighten the hand brake at this time; stop on the ramp to prevent rolling accidents , need to tighten the hand brake. To prevent the vehicle from being blown away by the strong wind, tighten the handbrake. Tightening the handbrake needs to be operated one by one, especially when the vehicle is running, tens of hundreds of vehicles are parked on the ramp...

Claims

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Application Information

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IPC IPC(8): F16D65/14F16D121/04F16D127/06
CPCF16D65/14F16D2127/06F16D2121/04Y02T10/70
Inventor 刘毅王开恩吕超安鸿肖维远全琼申燕飞韦雪丽申检宏杜霞李果肖晨胡玉梅毛富英时云霄吕亮
Owner MEISHAN CRRC BRAKE SCI & TECH CO LTD
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