Axial force and static torque combination device

Abstract

The invention discloses an axial force and static torque combination device. The device comprises an axial force test device, a static torque test device and an outer cover structure which integratesthe axial force test device and the static torque test device into a whole. The device has the advantages that according to the technical scheme, an axial force test structure and a static torque teststructure are combined into one overall outer framework, the integrity of the device is achieved, and installation and testing are convenient and rapid; through the arrangement of a bearing structure, the problems of data linearity distortion of a load sensor when non-vertical force acts on a bearing surface of the load sensor and data linearity distortion of a static torque sensor when non-rotational force acts on a bearing inner sleeve of the static torque sensor are effectively avoided, and the correctness of data linearity is guaranteed; and the whole device only has one outgoing cable, so that the integrity of the device is reflected.

Description

technical field [0001] The invention relates to a testing device, in particular to a testing device for axial force and thread torque in testing the friction coefficient of threaded fasteners. Background technique [0002] Threaded fasteners are mechanical parts used in almost all mechanical equipment. The performance of threaded fasteners is one of the most important technologies that affect the reliability of mechanical connection technology. To ensure that each threaded fastener can work normally after tightening, there will be over-tightening, under-tightening and under-tightening after the occurrence of solidification. It is necessary to test the static torque (hereinafter referred to as static torque) and axial force of the threaded fastener. In the traditional test method, only one performance test can be completed alone when using a testing machine for testing, such as a separate static torsion test or a separate axial force test. The equipment structure is complicat...

AI Technical Summary

Problems solved by technology

In the traditional test method, only one performance test can be completed alone when using a testing machine for testing, such as a separate static torsion test or a separate axial force test. The equipment structure is complicated and the operating procedures are cumbersome; When there is a non-perpendicular force acting on the bearing surface of the load sensor, the linearity of the load sensor data will be distorted; similarly, when the static torque sensor tests static torsion, and when there is a non-rotational force on the inner sleeve of the static torque sensor, the linearity of the static torque sensor data will be distorted. distortion, the existing equipment cannot effectively guarantee the correctness of the test data linearity of the load sensor and the static torque sensor

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