Indoor endurance testing machine for tire

Abstract

The invention relates to an indoor durability testing machine for a tire. The indoor durability testing machine comprises a base, a drum mechanism, a pressure applying device and a force measuring device; one end of the force measuring device is mounted on the base, and the other end is connected with the pressure applying device; the pressure applying device is used for applying forces required under different conditions to the tire; the tire is tightly contacted with a rotary drum of the rotary drum mechanism, the rotary drum is a rotary drum with a non-smooth surface, the surface of the rotary drum can be designed according to actual road conditions, and the force measuring device measures the pressure applied to the tire by the pressure applying device and the six-component force of the tire under different road conditions. The device not only can test the durability of the tire, but also can test the six-component force of the tire under different conditions at the same time, so that the test efficiency is greatly improved, and the experiment test cost is saved.

Description

technical field [0001] The invention relates to a tire indoor durability testing machine, in particular to a drum structure and a force measuring device of the durability testing machine, and belongs to the technical field of tire testing. Background technique [0002] In the tire development process, after the blueprint model design and sample tire production are completed, performance testing is required. The durability of the tire is related to the safety of the vehicle and is an important indicator that the tire manufacturer must test. Only after measuring the durability of tires and confirming that they meet the internal standards of the manufacturer or national safety standards can they be mass-produced and put on the market. The durability of a tire is directly related to its deformation, and the damaged parts and durability time of tires vary greatly under different deformation states. The deformation of the tire is greatly affected by the road surface structure and...

AI Technical Summary

Problems solved by technology

Carrying out actual road tests to evaluate the durability of tires has the disadvantages of long cycle time and high cost, which cannot meet the actual needs of rapid tire development. The use of indoor tire durability testing machines for tire durability testing is currently widely used by tire manufacturers. test method

The drum is the core component of the tire durability testing machine. However, the drum of the traditional tire durability testing machine is in the form of a smooth plane structure, which cannot reflect the structural characteristics of the road surface and the deformation characteristics of the tire when turning, resulting in indoor test results of tire durability. Seriously inconsistent with the actual road test results, and then misleading the direction of tire design and improvement, resulting in waste of resources and potential safety hazards and other adverse consequences

[0003] At the same time, the traditional tire durability testing machine has a single function and can only perform durability tests. It cannot measure the six-component force of the tire under different road conditions or deformation states. To measure the six-component force during the rolling process of the tire, the tire needs to be removed. and transferred to a special testing machine for testing. For example, patent 201410054711.7 discloses a test bench for measuring the six-component force of tires, which can directly measure the forces in three directions and the moments in three directions on the tires, but cannot perform durability tests. , which reduces test efficiency and increases energy consumption

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