Liquid damping shock absorber for engineering machinery

Abstract

The invention discloses a liquid damping shock absorber for engineering machinery. The liquid damping shock absorber comprises a connecting bolt, a main rubber spring, two throttling disks, a metal shell, an inertia channel, a decoupling disk, a rubber base membrane, and a connecting seat which is embedded in the upper part of the main rubber spring, wherein the main rubber spring is connected with the upper end of the metal shell; the main rubber spring and the metal shell form a closed liquid chamber; the connecting bolt is fixedly connected with the connecting seat; the throttling disks are positioned in the closed liquid chamber and fixedly connected with one end of the connecting bolt; the inertia channel is fixedly connected with the inner wall of the metal shell and positioned below the throttling disks; the decoupling disk is positioned in the inertia channel; the rubber base membrane is fixedly connected with the inner wall of the metal shell and positioned below the inertia channel. The shock absorber is used for isolating vibration and lowering noise of the engineering machinery, in particular for isolating mechanical vibration within wider broadband and reducing large amplitude shaking at low frequency.

Description

technical field [0001] The invention relates to a shock absorber, in particular to a liquid damping shock absorber for engineering machinery. Background technique [0002] Vibration isolators for construction machinery are used to isolate the vibration transmitted from the powertrain to the frame to improve the driver's ride comfort; to reduce the large vibration of the frame caused by uneven bottom surfaces and emergency braking, etc. Protect the various parts of the powertrain to prolong its service life and reduce costs; isolate or reduce cab shaking caused by uneven ground or emergency braking, and improve the driver's ride comfort. [0003] In the prior art, rubber shock absorbers are usually used for vibration isolation of construction machinery, and the hysteresis characteristic of rubber is used to realize vibration isolation. But very poor for large-scale shaking effect, can affect the working performance and the life-span of each parts and complete machine of engi...

AI Technical Summary

Problems solved by technology

However, the effect of large-scale shaking is very poor, which will affect the working performance and life of the engine parts and the whole machine, and greatly affect the driver's comfort and reduce work efficiency.

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