Auxiliary device and method for engine gear tightening

Abstract

The invention discloses an auxiliary device for engine gear tightening. The auxiliary device comprises a fixed plate and at least two positioning pins, wherein a plurality of pin holes are axially formed in the fixed plate, the positioning pins are movably inserted into the pin holes, a clamping assembly which is bulged to one side of the fixed plate is arranged in the middle of the fixed plate, the clamping assembly comprises a connecting block which is connected with the fixed plate, a clamping block which can be inserted into a gear groove of a gear and a connecting rod which is used for connecting the clamping block with the connecting block, the connecting rod is movably inserted into the connecting block, and a spring sleeves the connecting rod between the connecting block and the clamping block. According to the auxiliary device, the problem of rotation of the gear and the problem of damage to the gear can be effectively prevented. The invention further discloses an engine geartightening method. A motor gear system can be quickly tightened by using the method, so that the assembly efficiency and the production safety are increased, and the labor intensity is reduced.

Description

technical field [0001] The invention relates to the technical field of engine gear assembly, more specifically, it relates to an auxiliary device and method for tightening engine gears. Background technique [0002] During the assembly process of the engine, it is necessary to tighten multiple gears of the end face gear train on the body. In the actual assembly process, when the fastening bolts of the gears are tightened with a torque wrench, the gear train will rotate and the torque of the bolts cannot be guaranteed. If the torque of the engine gear fastening bolts is not enough, after the engine runs at high speed for a long time, it may cause faults such as gear flying out, which will seriously affect the quality of the engine. At present, the method to prevent the gear train from co-rotating is to directly block the meshing part of the gears with a crowbar, so that the gears cannot rotate so as to prevent the gear train from co-rotating. However, during the tightening p...

AI Technical Summary

Problems solved by technology

[0002] During the assembly process of the engine, it is necessary to tighten multiple gears of the end face gear train on the body. In the actual assembly process, when the fastening bolts of the gears are tightened with a torque wrench, the gear train will rotate and the torque of the bolts cannot be guaranteed. If the torque of the engine gear fastening bolts is not enough, after the engine runs at high speed for a long time, it may cause faults such as gear flying out, which will seriously affect the quality of the engine

At present, the method to prevent the gear train from rotating is to directly use a crowbar to block the meshing part of the gears so that the gears cannot rotate so as to prevent the gear train from rotating

However, during the tightening process, the crowbar may fall off from time to time, and the effect of preventing follow-up rotation is not good, and the crowbar may easily hurt people when the crowbar falls off, which has potential safety hazards. damage problem

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