Bi-directional electromechanical actuation type test-bed for damper

Abstract

The invention discloses a two-way electromechanical actuation type shock absorber test bench, the base (7) of which is an "L"-shaped base (7) rigidly connected by a base (10) and a column (6), a power mechanism, The transmission mechanism and the executive mechanism are an integrated electromechanical actuator (9), and a steering mechanism for driving the electromechanical actuator (9) to rotate in the vertical plane is arranged on the base (7), and the base (10) and the column (6) respectively has a locking mechanism (8) for locking the electromechanical actuator (9), and an adjustable reaction force seat (1) is respectively installed on the base (10) and the column (6). It has the advantages of good dynamic performance, high working precision, wide test range, strong adaptability, low energy consumption, low noise, no pollution, quick and convenient operation, etc.

Description

Technical field [0001] The present invention relates to an electromechanical actuated shock absorber test device used for shock absorber performance test, in particular to a two-way electromechanical actuated shock absorber used for shock absorber performance test of rolling stock and other means of transportation Test Bench. Background technique [0002] Shock absorbers are important components of rolling stock and other means of transportation. Whether the matching of damping parameters is reasonable or not directly affects the running quality of rolling stock, so performance tests on shock absorbers are often performed. The shock absorber test bench must first have the function of applying push-pull force to the shock absorber and performing linear reciprocating motion. The range of its working speed is expected to be continuously adjustable between 0.001 meters per second and 0.5 meters per second. At the same time, it should be able to Control the stroke and frequency ...

AI Technical Summary

Problems solved by technology

The belt transmission used in the test bench is flexible transmission, and the power is transmitted by friction, so the dynamic characteristics are poor, the control accuracy is low, the efficiency is not high, the operation of the moving beam is inconvenient, and there is no test for setting horizontal shock absorbers Working conditions; another example is the J95 two-way oil pressure shock absorber test bench contained in the color insert of the 38th volume of "Railway Vehicles" (No. 3, 2000). To realize the test conditions in both vertical and horizontal directions, two sets of cylinder piston actuators are used. In addition to mechanical and electrical devices, a hydraulic oil supply system is required. The whole system is complicated, and the speed range of reciprocating motion is difficult to meet the actual situation. Need, oil leakage will inevitably cause pollution and noise pollution

The frequency of the reciprocating motion of the shock absorber test bench cannot be adjusted steplessly

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