Diesel engine gear train transmission device with exceeding belt pulley

A technology of transmission and pulley, applied in the direction of toothed elements, belt/chain/gear, hoisting device, etc., can solve problems such as unfavorable belt transmission system

Inactive Publication Date: 2011-06-08
DONGFENG CHAOYANG DIESEL ENGINE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Frequent speed changes of the engine will be very unfavorable to the belt drive system

Method used

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  • Diesel engine gear train transmission device with exceeding belt pulley
  • Diesel engine gear train transmission device with exceeding belt pulley
  • Diesel engine gear train transmission device with exceeding belt pulley

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Embodiment Construction

[0008] The structural principles of the present invention will be further described below in conjunction with the accompanying drawings and examples. But the content covered by the present invention is not limited to the following examples.

[0009] The technical scheme of the diesel engine gear train transmission device with an overrunning pulley is realized as follows: the diesel engine gear train transmission is composed of a shock absorber pulley 1, an idler pulley 2, a water pump pulley 3, an overrunning pulley 4, a transmission belt 5, and a tension pulley 6 system (such as figure 1 ). Wherein the overrunning pulley 4 is composed of a belt pulley 7, an outer ring frame 8, an inner ring frame 10, a contact seal 11, a radial needle roller bearing 12, a sealing washer 13, a protective cover 14 and a shaft sleeve 16. The outer ring frame 8 and the inner ring frame 10 are placed between the belt pulley 7 and the shaft sleeve 16 , and the end faces of the belt pulley 7 and t...

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PUM

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Abstract

The invention discloses a diesel engine gear train transmission device with an exceeding belt pulley changing an engine belt pulley into an exceeding belt pulley as an improvement. The diesel engine gear train transmission system comprises a shock absorber belt pulley, an idler pulley, a water pump belt pulley, the exceeding belt pulley, a transmission belt and a tensioning pulley, wherein the exceeding belt pulley is composed of a belt plate, an inner ring frame, an outer ring frame, contact type seals, a radial needle roller bearing, a seal washer and a shaft sleeve; the inner ring frame and the outer ring frame are arranged between the belt pulley and the shaft sleeve; the belt plate and the end surface of one side of the inner ring frame are provided with the contact type seals; and a space formed by the inner ring frame and the outer ring frame is provided with a clutch roller and a spring. By removing the connection between the belt and an engine shaft of the exceeding belt pulley, the weight of the engine is relieved from the torque vibration, thus the transmission belt only can drive the engine in single direction, the excessive sliding and shaking of the belt can be avoided in the accelerating and decelerating processes of the engine, and the influence of the engine on the belt driving system is reduced.

Description

technical field [0001] The invention belongs to the structure of an internal combustion engine, and in particular relates to a device which adopts an overrunning belt pulley and is applied to the transmission of a diesel engine wheel train. Background technique [0002] Under the action of the moment formed by gas pressure and inertial force, the crankshaft system of the internal combustion engine will generate torsional vibration around the axis in the vertical plane. This torsional vibration is transmitted to all engine accessories, and the engine accessories are repeatedly accelerated with ignition and compression. and slow down. Frequent speed changes of the engine will be very detrimental to the belt drive system. The main manifestations are: 1) The pulley system is required to have a high tension; 2) The whole machine cannot meet the expected NVH performance (NVH: noise, vibration, etc.); 3) The belt vibrates, cracks, and the replacement cycle is shortened. At the s...

Claims

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Application Information

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IPC IPC(8): F02B63/04F16H55/36F16F15/131F16D41/06
Inventor 张永胜张宏辉胡志强张俊波李洋张海涛刘向东朱志昊
Owner DONGFENG CHAOYANG DIESEL ENGINE
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