Automobile tyre fixture

Abstract

The invention discloses an automobile tyre fixture, which comprises a fixture body, wherein two telescopic rods are arranged inside the clamp body, the two telescopic rods extend outwards or contract inwards from both ends of the fixture body simultaneously, stroke lengths of the two telescopic rods extending outwards or contracting inwards are identical, the end heads of the two telescopic rods are symmetrically provided with tyre positioning mechanisms, each tyre positioning mechanism comprises a positioning plate and a positioning shaft perpendicularly connected with the positioning plate, each positioning plate is fixedly connected with the end head of the corresponding telescopic rod, each positioning shaft is sleeved with a tread connecting part in contact connection with a tread of a tyre, each positioning plate is further provided with a measuring equipment connecting part, and the measuring equipment connecting parts on the end heads of the two telescopic rods are positioned on the same horizontal plane. The automobile tyre fixture is simple in structure and convenient to operate, realizes the effect of taking the tyre of an automobile wheel as a benchmark, facilitates subsequent measurement equipment to measure an automobile wheel toe-in, ensures that data results of other subsequent measurement works are real and precise, and improves the subsequent adjustment precision of the automobile wheel toe-in.

Description

technical field [0001] The invention relates to a clamp for clamping automobile tires, in particular to a clamp for automobile tires, which belongs to the technical field of automobiles. Background technique [0002] The toe-in of the wheel refers to the angle between the forward direction of the vehicle body and the plane of the wheel. Looking at the direction in which the two wheels point from top to bottom, the pair of front wheels (or rear wheels) pointing inward at the front end is the toe-in of the wheel, pointing outward When the car is rear-wheel drive, the front wheels usually have toe-in, and when the car is front-wheel drive, the front wheels The rear toe, this is to compensate for the change of the steering linkage and the steering wheel during the driving of the car. When the car is running, the front toe or rear toe decreases or disappears, because the wheels have to return under the action of acceleration. At the same time, the steering rod system is slightly...

AI Technical Summary

Problems solved by technology

[0003] At present, domestic automobile manufacturers and automobile maintenance centers are not very accurate when adjusting the toe-in of automobile wheels. The fixation method is to use a clamp to clamp on the wheel hub on the outer side of the car tire, and take the wheel hub of the car tire as the benchmark for measurement, so the toe-in of the wheel measured in the end is based on the wheel hub, not the tire. The real toe-in of the car wheel, the measurement result based on the wheel hub is very different from the measurement result based on the tire, because the tire is in contact with the ground instead of the wheel hub, so the toe-in of the car wheel measured by the prior art The resulting data is untrue and inaccurate, which eventually leads to untrue and accurate data results of other subsequent measurement work, which affects the adjustment of the toe-in of the car wheel

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