A test device for static load characteristics of motorcycle front shock absorber

Abstract

The invention provides a motorcycle front shock absorber static load feature test device, which comprises an upper clamping device and a lower driving device, wherein the upper clamping device and the lower driving device are separated at top and bottom and are in arrangement in a way of mutually deviating from an axial line, the upper clamping device comprises a machine seat, a lower platform is connected onto the machine seat, the lower platform is sequentially provided with a guide rail seat, a linear guide rail and an upper slide table from top to bottom, the upper slide table can leftwards and rightwards move, a first front-and-back pin support seat arranged at the left side of the upper slide table is pinned and connected with an installing plate in inclined arrangement, two sets of identical front-and-back isolated clamping mechanisms are connected onto the outer side surface of the installing plate in a way of sharing one axial line, a second front-and-back pin support seat arranged at the right side is pinned and connected with an adjustable support rod provided with a straight groove, the upper end of the adjustable support rod is pinned and connected with the installing plate, a delta-shaped support frame structure with the adjustable inner angle size is formed, the lower driving device comprises a driving mechanism, a force sensor and a force exerting pin seat, the force sensor and the force exerting pin seat are sequentially connected with the driving mechanism, and the upper end surface of the force sensor is also connected with a displacement sensor. The motorcycle front shock absorber static load feature test device has the advantages that the structure is simple, the installation inclination angle is convenient to regulate, and the shock absorber static load feature test requirements specified by relevant standards can be met.

Description

Technical field [0001] The invention belongs to the technical field of product performance testing and testing, and relates to a static load characteristic test device, in particular to a static load characteristic test device for a front shock absorber of a motorcycle. Background technique [0002] As a key component in a moving vehicle, the shock absorber plays an important role in the comfort, safety and maneuverability of the moving vehicle. The purpose of the static load characteristic (StaticLoadCharacteristics) test is to test the static resistance of the shock absorber in addition to the damping force. The static load characteristics include the static friction between the relative moving parts inside the shock absorber, the resistance of the air chamber volume change, and the resistance due to tilt The additional frictional resistance caused by the force and deformation of the installation (especially the front shock absorber) is a synthesis of the dimensional processing...

AI Technical Summary

Problems solved by technology

[0004] The shock absorber test bench produced by famous foreign test machine manufacturers, such as the shock absorber test bench sold by MTS in the United States, is driven by hydraulic servo cylinders, and can be used to test the performance characteristics, static friction characteristics, spring static characteristics and other items of shock absorbers. The test has certain versatility, but the static load characteristic test cannot be carried out, especially for the static load characteristic of the front shock absorber. Due to the different installation forms and sensor positions, it is necessary to install a special clamping mechanism, which is difficult to realize Test of static load characteristics

[0005] The shock absorber performance comprehensive test bench developed on the basis of the invention patent "Motorcycle front suspension recovery characteristic impact test method" (ZL200910031324.0) can not only test the dynamic recovery characteristics of the front shock absorber, but also test the front shock absorber. The static load characteristics of the shock absorber, but due to the use of the pull-up drive method, the installation inclination angle between the pull rope and the front shock absorber changes dynamically during the compression and recovery process of the shock absorber, which has a certain impact on the test accuracy

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