A device for measuring the z-direction displacement of a wheel during dynamic driving of a vehicle

Abstract

The invention discloses a device for measuring the Z-direction displacement of a wheel during dynamic running of a vehicle, which comprises an L-shaped bracket, a slip ring bracket, a radial bearing, a stator shaft, a nut and a cable displacement sensor; the L-shaped bracket includes a vertical plate and a horizontal There are a plurality of first mounting holes on the horizontal plate; the slip ring bracket includes a central ring and a plurality of connecting arms, and a second mounting hole is opened on the connecting arms; the radial bearing is mounted on the central circle through the shaft hole. on the ring; the stator shaft is fitted on the radial bearing through the shaft hole, one end of the nut is connected to the connecting arm with the first screw through the second mounting hole, the other end of the nut is connected to the wheel, and the axis of the nut is aligned with the stator The axes of the shafts are parallel; the stay wire displacement sensor is installed on the bottom surface of the horizontal plate with the second screw through the first installation hole, and the wire end of the stay wire displacement sensor is installed on the stator shaft. The invention is used for measuring the Z-direction displacement signal of the wheel, and has the advantages of convenient arrangement, reliable measurement, strong universality and easy inspection.

Description

technical field [0001] The invention belongs to the technical field of automobile testing devices, and in particular relates to a device for measuring the Z-direction displacement of a wheel during dynamic running of a vehicle. Background technique [0002] Road spectrum collection is an extremely important work in the process of automobile research and development, and it is an important means to study the reliability of the whole vehicle, and provides a scientific basis for the design, analysis and test of the fatigue life of the whole vehicle and parts. [0003] At present, major domestic automobile companies have successively carried out road spectrum collection work. The Z-direction displacement signal of the dynamic driving wheel relative to the body of the vehicle is one of the important signals in the road spectrum collection. In the actual measurement and collection of wheel Z-direction displacement signals, major OEMs currently mainly use pull-wire displacement sen...

AI Technical Summary

Problems solved by technology

[0004] (1) The displacement sensor is arranged on the parts of the chassis under the vehicle, and the space is so narrow that it cannot even be arranged;

[0005] (2) The pasting arrangement is unreliable, and the underside of the car is easily hit by stones and easily falls off;

[0006] (3) The versatility is extremely poor, and the layout scheme of each model is different;

[0007] (4) The device is under the vehicle, which is not easy to install, inspect and maintain

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