Mechanism and method for quickly measuring rotating speed of auxiliary box intermediate shaft of portable type commercial vehicle

Abstract

The invention provides a mechanism and a method for quickly measuring the rotating speed of an auxiliary box intermediate shaft of a portable type commercial vehicle. The mechanism comprises a rotating speed clamping ring, a rotating speed measuring code disk, a rotating speed measuring cover and a rotating speed sensor, wherein one end of the auxiliary box intermediate shaft is connected with a rear cover shell through bearings; clamping grooves used for installing intermediate shaft check rings for locking the auxiliary box intermediate shaft are formed in the auxiliary box intermediate shaft; the rotating speed clamping ring is fixedly connected with the clamping groove; the rotating speed clamping ring is fixedly connected with the rotating speed measuring code disk, and the rotating speed clamping ring and the rotating speed measuring code disk are both coaxial to the auxiliary box intermediate shaft; the rotating speed measuring cover is fixedly connected with the rear cover shell, and the rotating speed sensor is arranged on the rotating speed measuring cover. When a complete vehicle is in normal running, the rotating speed measuring code disk does rotational motion along with the auxiliary box intermediate shaft, and a magnetic induction line of the rotating speed sensor is cut by a convex bond on the outer edge of the rotating speed measuring code disk; abnormal pointsof rotating speed fluctuation can be effectively analyzed, the reason can be determined through the abnormal points, field failure can be traced at the first time, and a speed changer requires not tobe disassembled from the complete vehicle and be decomposed for determining a fault source.

Description

technical field [0001] The invention belongs to the field of commercial vehicle main and auxiliary box structure transmissions, and relates to a portable commercial vehicle auxiliary box intermediate shaft fast speed measurement mechanism and method. Background technique [0002] The main and auxiliary box structure transmission for commercial vehicles has the characteristics of wide range of speed ratio, strong load capacity and easy operation. It is a mainstream functional component of commercial vehicles at home and abroad. However, due to the large speed ratio of the sub-box, the harsh working conditions, the general use of pneumatic shifting, the existence of shifting shocks, and the impact of product technology and manufacturing, the current domestic commercial vehicle transmission sub-box gear and synchronizer failure rate is relatively high. When there is abnormal sound or other problems in the auxiliary box of the whole vehicle, it is difficult to analyze it through...

AI Technical Summary

Problems solved by technology

However, if the speed of the intermediate shaft of the auxiliary box is measured in real time, since it is installed inside the transmission, it is necessary to install monitoring equipment on the periphery of the transmission or on the intermediate shaft for fixing by conventional means.

Machining or destroying the peripheral or internal parts of the transmission is not only time-consuming and labor-intensive, but also causes slow progress, and will affect the customer's later use

Therefore, conventional monitoring and testing methods have great limitations

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