Portable dynamic wheel type calibrator for roller opposite force type automobile brake inspection bench

Abstract

The invention discloses a portable dynamic wheel type calibrator for a roller opposite force type automobile brake inspection bench. The portable dynamic wheel type calibrator comprises a brake force loading and detecting device, a wheel weight loading device, a braking device and a tire simulation device, wherein the braking device and the tire simulation device are arranged on a lower machine frame and are in transmission connection, the wheel weight loading device comprises a ground fixing frame, a press rod, a pressurization screw rod, an upper machine frame and a weighing sensor, the brake force loading and detecting device comprises a brake pressurization machine and a force sensor, the brake pressurization machine transmits the brake force to the brake device, the force sensor is connected with the brake device, the brake force intensity is output into simulation signals through the force sensor, the simulation signals are uploaded to a computer after being processed by a single chip microcomputer, and the computer calculates and displays the brake force ascending curve, the maximum brake force and the brake force during the dynamic wheel weight. The portable dynamic wheel type calibrator has the beneficial effects that the dynamic detection of the brake force is realized, and the work state of the automobile brake inspection bench is simulated, so the portable dynamic wheel type calibrator the advantage of high calibration authenticity and accuracy.

Description

technical field [0001] The invention relates to a tester for automobile test equipment, in particular to a portable dynamic wheel-type tester for a roller reaction force vehicle brake tester. Background technique [0002] According to the requirements of the current standard GB / T 13564-2005 and the metrological verification regulations JJG906-2009, the roller reaction force automobile brake tester should apply force to the roller or its equivalent position for static verification. Because the brake tester The following factors will cause data differences in the test results when testing vehicles: 1. Instrument factors: software fraud, slip rate setting and accuracy, force calibration, circuit time constant, data acquisition and processing. 2. Factors affecting the resistance of the mechanical stand and the ground: the center distance of the roller is different, the height difference between the front and rear rollers is different, whether the reducer reaches the maximum requ...

AI Technical Summary

Problems solved by technology

Therefore, the brake test bench with qualified static test results and the actual test results of the vehicle brake test bench are sometimes very different, and the real braking force of the vehicle cannot be accurately measured on the brake test bench.

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