CN2640792Y - Elastic clay buffer with shunt accumulation - Google Patents

Abstract

The utility model relates to an elastic cement buffer with shunt energy storage, which belongs to the technical field of buffer devices. At present, spring-friction buffers of various mechanical forms used on the coupler can no longer meet the needs of high-speed trains in performance because of their small capacity and serious wear and tear. The utility model proposes an elastic clay buffer with shunt energy storage, which is characterized in that: the outer skirt of the cylindrical buffer shell uniformly filled with elastic clay has two symmetrical semi-cylindrical accumulators, and the near end has energy discharge The hole communicates with the shell cavity. This structure greatly improves the buffer capacity and performance, and can be installed without changing the original coupler structure to replace the old buffer.

Description

A kind of elastic cement buffer with shunt energy storage

Technical field: The utility model relates to a buffer device, to be precise, a buffer in a coupler device that undertakes the function of vehicle traction and coupling, and is an elastic cement buffer.

Background technology: With the increase of vehicle load, total train weight and running speed, and the allowable coupling speed of trucks in marshalling yards, the mechanical spring-friction buffers and rubber buffers originally used on the couplers Due to its small buffer capacity, serious mechanical wear, permanent deformation, and unstable performance, the buffer can no longer adapt to the greater impact force of high-speed trains and higher shunting impact speeds. In recent years, in order to meet the operation needs of high-speed trains, passenger cars and freight cars, elastic cement buffers have appeared, which have the advantages of large buffer capacity, small resistance, simple structure, stable performance, small size and light weight.

Summary of the invention: This utility model seeks to further increase the buffer capacity of the elastic cement buffer through the improvement of the internal structure, that is, to increase the buffer capacity without changing the structure of the original coupler.

The utility model is realized in the following manner: at the opening of the cylindrical buffer shell evenly filled with elastic clay, the sealing cover of the freely movable piston rod positioned by the center hole is sealed and fastened, and the mud-like The movable piston with orifice is fastened on the piston rod, and the outer skirt of the casing has two symmetrical semi-cylindrical accumulators, and a discharge hole at the near end communicates with the shell cavity.

The buffer uses elastic cement as the medium, which has elasticity, compressibility and fluidity, and its physical and chemical properties have high stability in the range of -50 ~ +250 ° C, anti-aging, odorless, non-toxic, and environmentally friendly. No pollution. It has the characteristics of both solid and liquid properties, and its dynamic viscosity is tens to hundreds of times larger than ordinary hydraulic oil. Compared with ordinary friction buffers, it has a much larger capacity and less resistance.

Description of drawings: Fig. 1 is a sectional view of the structure principle of the utility model

Figure 2 is a side view of the structural principle

Specific implementation method: at the opening of the cylindrical buffer housing 2 evenly filled with elastic mastic 1, the sealing cover 3 of the freely movable piston rod positioned by the center hole is sealed and fastened, and the mud-like movement can be prevented in the cavity. The piston 4 with orifice is fastened on the piston rod 5 . There are two symmetrical semi-cylindrical accumulators 6 on the outer skirt of the shell, and an energy discharge hole 7 at the near end communicates with the shell cavity.

In the buffer body filled with elastic mastic material, the piston with orifice, when the piston rod is subjected to impact force, the elastic mastic material is compressed to generate resistance, the compression deformation of the mastic material absorbs the impact energy, and passes through the orifice and the discharge The energy is stored in the energy hole. Due to the characteristics of the cement material and the structural form of the accumulator, the greater the impact force, the greater the capacity of the buffer. When the pressure on the piston rod is removed, the volume of the elastic cement expands and flows back through the orifice and the energy relief hole, causing the piston to return to its original position.

Claims (1)

1, a kind of elastic cement buffer with the shunting accumulation of energy, by housing, piston, bar, seal cover cap, elastic cement is formed, it is characterized in that: evenly be full of the opening part of the cylindric energy disperser housing (2) of elastic cement (1), seal cover cap (3) sealing of being located the piston rod that can move freely by centre hole is fastening; Can hinder in cavity that the mud shape moves, the piston (4) of band cutoff port is fastened on the piston rod (5); The housing peripheral skirt has symmetry two semicircular cylinder energy storages (6), and close end is let out and can be communicated with the shell chamber in hole (7).

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