Steel plate spring assembly fatigue tester

Abstract

The invention relates to a steel plate spring assembly fatigue machine, which comprises a servo hydraulic cylinder and the like. A bracket is arranged in the middle of a base and is fixed with the servo hydraulic cylinder; a cylinder rod of the servo hydraulic cylinder is downward, and the head of the cylinder rod is provided with a jig; the outside of the servo hydraulic cylinder is fixedly provided with a displacement pickup; a head bulk head of the displacement pickup is connected with the cylinder rod; the two ends of the base are respectively provided with a support; the lower part of the support is processed with a screwed hole which a screw passes through; the two ends of the screw are supported and arranged on the base by a bearing; one end of the screw is provided with a handwheel; the inner sides of the two supports are respectively provided with a support jig; the end of the support jig is also processed with a screwed hole which is matched with the screw; the head of the screw is extended to the upper part of the supports and is provided with the handwheel. The fatigue machine has simple structure, convenient operation, space saving and low cost; the precise fatigue test can be carried out on the steel plate spring by the fatigue machine, thus guaranteeing the quality of products complying with standard code before installation and the product percent of pass.

Description

technical field [0001] The invention relates to a test device, in particular to a leaf spring assembly fatigue testing machine for the fatigue strength of leaf springs. Background technique [0002] In our life, leaf springs are used in many supplies. Leaf springs are widely used due to their high structural strength and large spanning distance. Leaf springs are generally used for support and vibration reduction, such as leaf springs on automobiles, leaf springs on trains, etc., which not only support the upper parts, but also absorb the vibration transmitted from the ground and play a buffering role. Prevents large vibrations from being transmitted to the upper part, reducing the bumpy feeling of the driver and passenger. Therefore, after these vehicles are running, the leaf spring will vibrate up and down frequently, and the amplitude varies. This has very high requirements on the fatigue strength of the leaf spring. If the fatigue strength of the leaf spring is not eno...

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Problems solved by technology

[0003] Some leaf spring fatigue testing machines currently used have complicated structures, and they are all giants. The loading mechanism is very heavy and requires a huge power to drive, so the cost is high, and it needs to occupy a large space, and the test is not convenient.

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