Shock absorbing device and engine system

Abstract

The invention discloses a shock absorbing device and an engine system and belongs to the technical field of shock absorption. The shock absorbing device comprises a shell and a transmission shaft. Theshell is connected to a rotating driving part and a plurality of inner convex teeth are circumferentially arranged on the inner wall of the shell; the transmission shaft is arranged on the shell in apenetrating manner, a plurality of outer convex teeth are circumferentially arranged on the outer wall of the transmission shaft, the outer convex teeth and the inner convex teeth are distributed alternately, and rubber shock absorbing blocks are arranged between the adjacent outer convex teeth and inner convex teeth. When a flywheel drives the shell to rotate, the inner convex teeth on the shellpull the transmission shaft to rotate through the rubber shock absorbing blocks, the transmission shaft then drives a follow-up transmission system to rotate, and elastic damping of the rubber shockabsorbing blocks can convert rigid impact to elastic impact so as to achieve shock absorption. The rigidity of the rubber shock absorbing blocks is easily controlled, the rigidity of the rubber shockabsorbing blocks is smaller, and the vibration energy can be consumed in form of heat energy more effectively, so that torsional vibration is inhibited, the inherent frequency of the integral device is avoided to the maximum extent, and the shock absorbing effect is good.

Description

technical field [0001] The invention relates to the technical field of engine damping, in particular to a damping device and an engine system. Background technique [0002] At present, most engineering vehicles are driven by internal combustion engines. During the working process of the engine, the elasticity of the crankshaft and the periodic torque acting on the shafting make the engine always have torsional vibration. Torsional vibration will cause the shaft system to bear alternating stress. With the accumulation of fatigue, it will cause sudden fracture of the crankshaft, transmission system shaft, bolts, gears, etc.; The noise will aggravate the wear of other parts, and even serious damage accidents such as breakage of transmission system parts will occur. [0003] Installing the torsional shock absorber can adjust the torsional natural vibration frequency of the crankshaft without changing the structure, moment of inertia and stiffness of other transmission systems, ...

AI Technical Summary

Problems solved by technology

However, the working environment of bulldozers is relatively complicated, mostly in mines, coal yards and water conservancy projects. Sometimes the shock and vibration generated by the engine will be very large. Due to the limitation of the structure of the spring shock absorber itself, for example, the torsional stiffness of the spring is relatively large, and the stiffness is not high. Good control, the spring stiffness produced is poor in consistency, the quality is extremely unstable, and the working angle is small, which cannot effectively avoid the resonance zone of the whole machine, which seriously affects the performance of the bulldozer

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