Fatigue test device for vehicle vacuum booster pallet

Abstract

The invention relates to an automobile vacuum booster supporting plate fatigue testing device which can be matched with a drawing and pressing machine for conducting supporting plate fatigue tests. The fatigue testing device comprises a fixed support rack, a fixed base plate (3) and a rapid linking structure, wherein the fixed support rack is mounted on a test platform of the drawing and pressing machine, the fixed base plate (3) is arranged on the fixed support rack, a top end of the rapid linking structure is fixedly connected with the drawing and pressing machine, and a bottom end of the rapid linking structure is used for installing a test support plate in a fixing manner and placing the test support plate below the fixed base plate (3); during testing processes, the drawing and pressing machine drives the test support plate to move up and down in a reciprocating manner via the rapid linking structure, and the test support plate and the fixed base plate (3) are enabled to extrude each other cyclically in a contacting manner. Compared with technologies of the prior art, the testing device disclosed in the invention is simple to install, a testing period can be greatly shortened, the whole device is simple in structure and low in testing and device cost, and the testing device is convenient to popularize and apply.

Description

technical field [0001] The invention relates to the field of an automobile vacuum booster experimental measuring device, in particular to a fatigue test device for a supporting plate of an automobile vacuum booster. Background technique [0002] Automobile vacuum booster is a key component in automobile braking system. Because it plays a vital role in driving safety, the vacuum booster has always been one of the focuses of research on the automotive braking system. [0003] The automotive vacuum booster is mainly composed of control valve parts, riveted parts of the rear housing, pressure blocks, diaphragms, booster discs, retainers, front housing parts, master cylinder springs, feedback discs, valve bodies, pallets and other components . The control valve parts are composed of valve stem, valve stem return spring, rubber valve spring, rubber valve parts and air valve seat and other parts. [0004] With the introduction of the concept of automobile lightweight, the third-...

AI Technical Summary

Problems solved by technology

The previous bench test was carried out by installing the booster assembly on the durability test bench. Under normal circumstances, the number of times the booster moves is 20,000 times per day, plus the disassembly, assembly and debugging of the test engineer. It takes at least 25 days for 310,000 tests, which is extremely unfavorable for product development and production

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