Installing structure for idler wheel

Abstract

The invention provides an installing structure for an idler wheel. The installing structure comprises the idler wheel for guiding a guide engine front end gear train belt, bearings, an installing table and a bolt. The outer rings of the bearings are sleeved with installing shaft holes of the idler wheel. The installing table is formed on an engine cylinder block and is adjacent to the idler wheel. The bolt sequentially penetrates the inner rings of the bearings, stretches into a bolt hole formed in the installing table and is fastened to the installing table. Stepped column bodies are axially arranged between the installing table and the bearings. The small-head ends of the stepped column bodies with the settable length are fastened and pressed into the inner rings of the bearings to be matched with a bolt cap of the bolt to clamp the inner rings of the bearings, the large-head ends of the stepped column bodies are fixedly connected with the installing table, and therefore the problem of limitation of the length and the size of the installing table is solved; and the axial position can be flexibly adjusted, and the universalization rate of the engine cylinder block is increased.

Description

technical field [0001] The invention belongs to the field of front-end gear trains of internal combustion engines, and in particular relates to an idler gear installation structure for front end gear trains of internal combustion engines. Background technique [0002] During the working process of the front wheel train of the engine, the working belt of the front wheel train is driven and guided by the rotation of the idler wheel in the front wheel train. The installation structure of the front stage gear train idler gear of the prior art is as follows: Figure 1 to Figure 3 Shown: [0003] The installation structure of the idler wheel of the front section consists of bolt 1, dust cover 2, pulley 3, bearing 4, gasket 5, and a long-lapped mounting table 8 on the engine block; bearing 4 is installed in the installation shaft hole of pulley 3 , the mounting table 8 has a bolt hole, the dust cover 2 covers one side of the bearing, and the bolt 1 passes through the dust cover 2,...

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to provide an idler gear installation structure, which solves the problem that the engine cylinder block needs to be equipped with different sizes of mounting platforms when the idler gears of different sizes are installed, and the versatility of the engine cylinder block is not high.

Images