A bushing durability test device

Abstract

The invention discloses a lining durability test device comprising a first supporting base, a second supporting base, a first connecting shaft, a second connecting shaft, a first flange plate, a second flange plate, a screw rod, an anti-loosening plug rod and a balance mechanism. The first flange plate and the second flange plate are arranged between the first supporting base and the second supporting base. The first connecting shaft is rotatably arranged on the first supporting base. The first connecting shaft is axially provided with a first through hole which is through in a left-and-right direction. The second connecting shaft is rotatably arranged on the second supporting base. The first flange plate and the first connecting shaft are fixedly connected. The first flange plate is provided with a second through hole which is communicated with the first through hole. The second flange plate is fixed on the second connecting shaft. One end of the screw rod is connected on the second flange plate in a screwed way, and the other end of the screw rod is arranged in the second through hole. The anti-loosening plug rod is arranged in the first through hole. The balance mechanism is respectively connected with the first connecting shaft and the second connecting shaft. The advantages of the lining durability test device are that reliability is high and test cost is low.

Description

technical field [0001] The invention relates to the field of production testing equipment for mechanical parts, in particular to a bushing durability testing device. Background technique [0002] With the development of the automobile industry, people have higher and higher demands on automobiles in terms of energy saving, environmental protection, comfort and reliability. In the guiding device of the suspension system (such as: swing arm, rear axle, etc.), more and more hinge points connected with the body are connected by bushings. With its good vibration isolation performance, elastic characteristics and attenuation characteristics, the bushing has become an indispensable and important component in automobiles. The existing bushing generally includes a metal outer tube and a metal inner tube coaxially arranged, and the metal outer tube and the metal inner tube are fixedly connected by a vulcanization process. As one of the key components of the automobile, the bushing i...

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Problems solved by technology

[0004] However, the existing bushing durability test device has the following problems: during the test, the torsion bar will also be subjected to the axial force from the torsion hydraulic cylinder and the radial force from the linear hydraulic cylinder, so the durability During the test, the torsion bar is easily broken and scrapped. Since the torsion bar is a non-standard part matched with the bushing, it needs special processing and the cost is high. Therefore, the reliability of the existing bushing durability test device is low. , the test processing cost is high, and the test process is interrupted due to multiple breaks of the torsion bar during the test process and the replacement cycle is long, so the durability of the bushing cannot be effectively and timely evaluated.

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