Shimmy tester of elastic shaft coupling

Abstract

The invention relates to a large-torque multifunctional shimmy tester for testing an elastic shaft coupling and detecting the relevant parameters comprising a dynamic damping coefficient, a static damping coefficient, rigidity, durability (fatigue life) and the like of the elastic shaft coupling. The tester comprises a hydraulic servo system, measurement and control hardware, measurement and control software, a force / motion switching mechanism, a sensor detecting device and a connecting device. The tester is characterized in that a hydraulic cylinder is connected with the force / motion switching mechanism based on the spiral transmission of balls through a connecting device, and the straight reciprocating motion of a piston rod is switched to the left and right reciprocating swing of an output member so that static and dynamic torsion swing tests on the elastic shaft coupling are realized; the hydraulic cylinder can also be directly connected with the elastic shaft coupling through theconnecting device so that axial and radial pull-press tests on the elastic shaft coupling are realized; and the output torque of the tester is 0-30 kN.m, the output force of the hydraulic cylinder is0-150 kN, the frequency is 0.12 Hz, the values of the tester can be controlled and regulated, and the precision of the tester is 1%.

Description

technical field [0001] The invention relates to a high-torque multifunctional shimmy testing machine for performing static and dynamic tension-compression, torsion, and fatigue tests on elastic couplings. Background technique [0002] Elastic coupling is a commonly used power transmission component, mainly used in the transmission shaft system powered by diesel engine, which can change the natural frequency of the shaft system, reduce the vibration hazard of the shaft system, and compensate the displacement of the shaft system. It is widely used in various Class machinery, ships, petroleum, chemical industry, mining and related weapons and equipment and other fields. Since the elastic coupling will be affected by many factors such as material, process, structure and environment during the production process, its important parameters such as damping coefficient and stiffness will be different. In order to ensure that each batch of products meets the user's requirements, befor...

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Problems solved by technology

[0008] Another object of the present invention is to solve the problem that the output torque of the existing torsion fatigue testing machine cannot meet the requirements of the elastic coupling, to achieve large output torque and high test accuracy, especially for the elastic coupling used to connect the flywheel and the shaft High torque multifunctional shimmy testing machine for testing

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