Combined type short-stroke buffer device

Abstract

The invention discloses a combined type short-stroke buffer device. The combined type short-stroke buffer device comprises collision heads, disc springs, a spring, a piston rod, a shell, a back flow hole, a cylinder wall, a sponge layer, a piston, damping holes, a disc spring support and a base, wherein the disc springs are arranged on the collision heads and are fixedly connected with the base through the disc spring support. According to the combined type short-stroke buffer device disclosed by the invention, the collision heads are quickly collided by a buffered object, the piston rod is pushed to move, oil liquid in a high pressure cavity is compressed by the piston and is discharged through the damping holes, the temperature of the oil liquid can be increased by a damping action so as to convert kinetic energy of the buffered object into thermal energy, the speed of the piston rod can be reduced, meanwhile, a part of energy is stored in the disc springs, the buffered object and a buffer motion part do return motion under the action of disc spring forces after the energy stored in the disc spring reaches a maximum value, the oil liquid reversely flows through the damping holes and the back flow hole of a hydraulic buffer, the energy is continuously consumed, and the situation of buffering larger energy in a short stroke is realized; the combined type short-stroke buffer device is suitable for an occasion which is in need of buffering larger energy in the short stroke; the buffering is smooth; the structure is simple, and the installation is easy.

Description

technical field [0001] The invention belongs to the field of high-voltage switch operating mechanism, and more specifically relates to a combined short-stroke buffer device. Background technique [0002] The buffer is an important part of the high-voltage switch operating mechanism and other devices. If there is no effective buffer, its service life may be shortened due to the direct impact of the moving parts of the operating mechanism, or it may directly cause the moving parts to rebound and fail to maintain points. Closed position. The existing hydraulic buffer has a long buffer stroke and a low unit buffer capacity, which is difficult to meet the application occasions that need to buffer large energy in a short stroke, so it is necessary to develop a new type of buffer device. Contents of the invention [0003] Aiming at the defects of the prior art, the present invention provides a combined short-stroke buffer device, the purpose of which is to participate in bufferi...

AI Technical Summary

Problems solved by technology

[0002] The buffer is an important part of the high-voltage switch operating mechanism and other devices. If there is no effective buffer, its service life may be shortened due to the direct impact of the moving parts of the operating mechanism, or it may directly cause the moving parts to rebound and fail to maintain points. Closed position

The existing hydraulic buffer has a long buffer stroke and a low unit buffer capacity, which is difficult to meet the application occasions that need to buffer large energy in a short stroke, so it is necessary to develop a new type of buffer device

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