Flow-throttling hole hydraulic buffer

Abstract

The invention discloses a throttling orifice hydraulic buffer. It includes buffer body, inner and outer back springs, throttling wall, supercharge sliding sleeve, buffering contact. The cylindrical surface of the buffering contact and the throttling wall is set two grooves set throttling orifice to block oil moving. The invention has impact velocity automatic adaptability, can keep shock absorbing capacity stable by adapting the variety of the hydraulic oil viscosity under major temperature variety.

Description

technical field [0001] The invention relates to a hydraulic buffer technology, in particular to an orifice hydraulic buffer. Background technique [0002] The buffer is also called the limit protector, which is an important part of many equipment to protect itself. When absorbing the same energy, the volume of the mechanical buffer is much larger than that of the hydraulic buffer, and there is rebound after buffering; the hydraulic buffer is small in size and heavy in weight. It is light, can increase the use space of the equipment, has no rebound when buffering, the equipment bears small impact force, small vibration, and small deceleration, thus prolonging the life of the equipment. Marine equipment is required to be small in size and light in weight, so hydraulic buffers are getting more and more attention in the development of marine equipment. However, the current hydraulic buffer has two major defects: one is poor adaptability to impact speed. When the equipment fail...

AI Technical Summary

Problems solved by technology

However, the current hydraulic buffer has two major defects: one is poor adaptability to impact speed

When the equipment fails, the speed at which it hits the buffer is not the same each time. When designed according to high speed, the buffering effect cannot be fully exerted at low speed; when designed according to low speed, the equipment cannot be well protected during high-speed failure; the second is the operating temperature range Small

The ship has a wide range of activities, the ambient temperature often changes, and the viscosity of the hydraulic oil also changes accordingly, resulting in a change in the cushioning stiffness and greatly affecting the cushioning performance

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