Tyre six-component force testing device for eliminating unbalance loading

Abstract

The invention relates to a tyre six-component force testing device for eliminating unbalance loading, the device comprises a tyre, a simulated road, a tyre positioning loading mechanism, and also comprises a base, two pillars, two six-component force sensors, an one-component force sensor, four spherical hinges and a loading plate, wherein a first pillar (2) and a second pillar (5) are fixed to the base (1), a first six-component force sensor (3) and a second six-component force sensor (6) are respectively fixed to the first pillar (2) and the second pillar (5), the upper ends of a first spherical hinge (4) and a second spherical hinge (7) are fixedly connected with the lower surface of the loading plate (8), and the lower ends of the same are respectively fixedly connected with the first six-component force sensor (3) and the second six-component force sensor (6); the tyre positioning loading mechanism (13) is arranged on the loading plate (8); the upper end of a third spherical hinge (9) is fixed to the lower surface of the loading plate (8), the upper end of the one-component force sensor (10) is fixedly connected with the third spherical hinge (9), the lower end of the same is fixedly connected with a fourth spherical hinge (11), and the fourth spherical hinge (11) is fixed to the base (1). The tyre six-component force testing device of the present invention achieves the purpose of measuring the six-component force of a huge tyre by use of small-range sensors.

Description

technical field [0001] The invention relates to a tire mechanics testing device, in particular to a tire six-component force testing device for eliminating unbalanced loads. Background technique [0002] The six-component force of heavy-duty and large-load tires is the basis for the performance analysis and design of automobiles and aircraft. Its rolling dynamics performance - the six-component force characteristic affects the safety, handling stability, ride comfort and NVH performance of the car; affects the take-off of the aircraft , Landing, braking, turning and taxiing phases are related to the safety of automobiles and aircraft. The study of the six-component force characteristics is an important content of automobile tire dynamics and aircraft ground dynamics. [0003] In the patent (CN102435449B), the six-component force sensor is installed on the side of the tire coaxial with the tire rotation axis, which can accurately measure the tire six-component force in the sm...

AI Technical Summary

Problems solved by technology

[0003] In the patent (CN102435449B), the six-component force sensor is installed on the side of the tire coaxial with the tire rotation axis, which can accurately measure the tire six-component force in the small-load tire contact footprint, but when measuring heavy-duty car tires or aviation tires , the tires have one thing in common - the load on the tire is very large

At this time, because there is a certain distance between the center of the tire contact footprint and the center of the six-component force sensor, and there is a moment arm between the tire vertical force and lateral force and the sensor center, the moment generated by the tire vertical force and lateral force can easily make the six-component force The turning moment of the component force sensor around the X axis exceeds the range. When the load on the tire is relatively large, the device cannot measure the six-component force of the tire. The large-range six-component force sensor must be replaced, but the high-precision and large-range six-component force The cost of the sensor is very expensive, and the range cannot meet the requirements

In addition, currently there are few devices that can measure the six-component force of tires with large loads, the structure is complicated, and the cost is expensive.

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