Light roller cage ear with gas spring hydraulic damper

Abstract

The invention provides a light roller cage ear with a gas spring hydraulic damper. The roller cage ear is formed by hinging a base, a bracket and a damper, wherein a roller component is arranged on the bracket; the damper consists of a cylinder, a damping valve, a plunger and a damper length adjusting rod; the damping valve is connected with the cylinder; high-pressure nitrogen is filled in the upper part of an air chamber; hydraulic oil is filled in the lower part of the air chamber; the roller component comprises light hubs with lightening holes and clamping rings; bolts penetrate through bolt holes on the clamping rings and hubs and are matched with the semi-circular grooves on a corrosion-resisting roller to form a circular hole, and the corrosion-resisting rollers are fixed on the hubs. The roller cage ear has the advantages that the impact energy can be quickly absorbed by the damper, the bearing capacity is high, the damping performance is high, the impact on a tank channel is small, the initial elasticity and the length of the damper can be conveniently adjusted, and the damper is fully sealed and is long in service life; the roller component is simple in structure, rubber wheels are easily replaced, the hubs have a fully-sealed structure, and the service life of a bearing is long; besides, the roller cage ear is light in weight and long in service life and is not required to be maintained.

Description

1. Technical field [0001] The invention relates to lifting transportation equipment, which is a light-duty roller tank lug used on a shaft lifting container. Its function is to keep the lifting container running safely and smoothly along the rigid tank road. 2. Background technology [0002] At present, two types of shock absorbers are widely used in the roller lugs used on the vertical well hoisting container. The first is the spring buffer roller lugs; the second is the hydraulic buffer roller lugs. [0003] Roller lugs with spring cushioning are available in two forms: coil springs and butterfly springs: coil springs are rarely used because of their small elasticity; disc springs have large load-bearing capacity, small deformation, and can quickly absorb impact energy, so they are currently widely used. In the roller can lug shock absorber, but the butterfly spring shock absorber has the following disadvantages: [0004] 1. The disc spring has a large elasticity, and th...

AI Technical Summary

Problems solved by technology

[0011] In order to overcome the shortcomings and deficiencies of the existing roller lug products, the present invention provides a light-duty roller lug with gas spring hydraulic damping, which solves the following shortcomings and deficiencies in the existing products:

[0012] 1. Solved the disadvantages of the butterfly spring shock absorber, such as large impact on the tank, difficult adjustment of the spring preload and length of the shock absorber, water, dust, easy corrosion of the spring, fatigue fracture, and short service life of the shock absorber; overcome The hydraulic shock absorber cannot quickly absorb large impact energy, the impact force of the roller and the tank is large, the hydraulic oil pressure in the hydraulic chamber is too high, oil leakage is easy, the initial elasticity of the shock absorber is low, and the length adjustment is difficult.

[0013] 2. Solve the problems of solid hubs with large mass, large inertia, large bearing force, early damage to bearings, and fast wear of wear-resistant rollers; overcome frictional heating of wear-resistant rollers during work, temperature rise, deformation and swelling, and wear-resistant The phenomenon of relative rotation between the roller and the hub solves the disadvantages of wear and consumption of the wear-resistant roller, difficulty in replacing the wear-resistant roller, etc.

Images