Portable calibration device for parking braking performance tester

Abstract

The invention relates to a portable calibration device for a parking braking performance tester. The portable calibration device for the parking braking performance tester comprises a force application system, a stress system and an auxiliary structure, wherein the force application system comprises a force application end, a worm and gear boost device, a force application lead screw and a force application link joint, the stress system comprises a stress link joint, a movable stress-end joint, a standard sensor, a sensor double-thread connection piece and a movable fixed-end joint, the auxiliary structure comprises a separating plate, an outer shell and a lever, the worm and gear boost device is installed at the force application end, a worm gear of the worm and gear boost device is connected with the force application lead screw in a meshing mode, the rear end of the force application lead screw is connected with the lever through the force application link joint, the lever is connected with the movable stress-end joint through the stress link joint, the movable stress-end joint is connected with the standard sensor through the sensor double-thread connecting piece, the movable fixed-end joint which corresponds to the movable stress-end joint is installed at the force application end, and a tested sensor is connected between the sensor double-thread connecting piece and the movable fixed-end joint.

Description

technical field [0001] The invention relates to a calibration device for a vehicle parking brake performance tester, in particular to a portable tester calibration test device. Background technique [0002] (1) At present, the calibration device of the tension sensor in the parking brake performance tester often has a rather large structure, so the weight is heavy and the volume is large. Therefore, the place of use is relatively fixed during use, and the handling is inconvenient, making on-site calibration almost impossible. [0003] (2) The current calibration device of this type requires a large force due to different force application methods, and is generally not suitable for manual force application. [0004] (3) The current calibration device of this type has a small working space and is not conducive to tool operation, so it is quite difficult to install and disassemble the sensor under test. [0005] (4) For current calibration devices of this type, the force-appl...

AI Technical Summary

Problems solved by technology

Therefore, the place of use is relatively fixed during use, and it is inconvenient to carry, and it is almost impossible to calibrate on site

[0003] (2) At present, this type of calibration device requires a large force due to different force application methods, and is generally not suitable for manual force application.

[0004] (3) The current calibration device of this type is difficult to install and disassemble the sensor under test because of the small working space, which is not conducive to tool operation

[0005] (4) For current calibration devices of this type, the force applying system and the force receiving system are often in the same working environment, and there is no isolation from the outside world

Therefore, the working environment is relatively harsh, and at the same time, it lacks safety and overall aesthetics of the instrument.

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