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A tire breaking device and its control device used in the running process of a vehicle

A vehicle driving and control device technology, which is applied to vehicle testing, measuring devices, vehicle steering/bump performance, etc., and can solve the problems of inaccurate test results and long test time.

Inactive Publication Date: 2021-04-16
JILIN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, manual operation is mostly used for breaking tires. Due to human operation, the test results will be inaccurate and the test time will be longer.

Method used

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  • A tire breaking device and its control device used in the running process of a vehicle
  • A tire breaking device and its control device used in the running process of a vehicle
  • A tire breaking device and its control device used in the running process of a vehicle

Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0061] Taking the 9.0-20 14PR model tire as an example, the tire breaking device and its control device used in the running of the vehicle are further explained.

[0062] The tire section of the 9.0-20 14PR model is 259mm, the diameter of the rim is 508mm, and the outer diameter of the tire is 1018mm. Tire section height=(maximum diameter-rim diameter) / 2=(1018-508) / 2=255mm.

[0063] In the form of a bilateral rupture (eg figure 1 shown); and select a high-speed impact cylinder (moving speed up to 60m / s) as the impact mechanism; the bore of the high-speed impact cylinder is 40mm.

[0064] There are 4 blades in the cutter head; the measuring range of the pressure sensor is 0-300N, and the output voltage range is 0-10V; the solenoid valve 310 is arranged on the air supply pipeline of the high-speed impact cylinder.

[0065] Such as Figure 7 As shown, the PLC module is used as the controller, and the PLC module includes: FX3U-16MR basic module and FX3U-4AD analog input module....

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Abstract

The invention discloses a tire breaking device used in the running process of a vehicle, comprising: a bracket, which is fixedly installed on the rim; a plurality of impact mechanisms, which are detachably installed on the bracket; a plurality of cutter heads, which One-to-one corresponding installation on the impact mechanism; wherein, the cutter head can move towards the tire direction driven by the impact mechanism to puncture the tire; and return under the drive of the impact mechanism after puncturing the tire initial position. The tire breaking device used in the running process of the vehicle provided by the invention is fixedly installed on the wheel rim and rotates synchronously with the wheel, and punctures the tire at a fixed point during the high-speed running of the vehicle, and retracts the cutter head after the puncture; it can realize fast and stable Puncture the tire and prevent the tire from interfering with the puncture mechanism when the tire is deflated and rolling. At the same time, the invention also discloses a control device for the tire breaking device used in the running process of the vehicle, which is used for controlling the tire breaking device used in the running process of the vehicle.

Description

technical field [0001] The invention belongs to the technical field of automobile performance testing devices, and in particular relates to a tire breaking device and a control device thereof used in the running process of a vehicle. Background technique [0002] Due to the increasingly high requirements for the safety technical conditions of trucks and passenger cars, it is necessary to test the steering performance, braking performance and driving distance of certain models after a tire blowout according to the JT / T1178.1-2018 standard . Taking the steering performance test as an example, the test vehicle is required to drive along a straight line at a constant speed of 60km / h, simulate a tire blowout on one side of the steering shaft, keep the vehicle running straight, and use a steering dynamometer to measure the vehicle’s maintenance before and after the blowout. The maximum tangential force value applied to the outer edge of the steering wheel during straight-line dri...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01M17/007G01M17/06
CPCG01M17/007G01M17/06
Inventor 郑晋军王雨蒙王勋龙王欣
Owner JILIN UNIV
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