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Bus fan-belt transmission mechanism

A belt drive and fan technology, which is applied to transmissions, engine components, machines/engines, etc., can solve the problems of insufficient engagement between the fan belt and the two belt grooves, difficulty in ensuring flatness, and insufficient assembly accuracy, and achieve vibration attenuation. , Save assembly and post-adjustment time, and ensure the effect of connection strength

Active Publication Date: 2013-05-08
北汽重型汽车有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The fan pulley and the intermediate pulley of the existing passenger car fan belt drive mechanism are installed separately, the flatness between the two is difficult to ensure, and the assembly accuracy is not enough, resulting in the fan belt not engaging well with the two belt grooves, and the assembly efficiency is low , the stability is not high

Method used

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  • Bus fan-belt transmission mechanism
  • Bus fan-belt transmission mechanism
  • Bus fan-belt transmission mechanism

Examples

Experimental program
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Embodiment Construction

[0025] see figure 1 A passenger car fan belt drive mechanism of this embodiment includes a crankshaft pulley 1, a crankshaft belt 2, an intermediate pulley assembly 3, a fan belt 4, a fan pulley assembly 5, a tripod assembly 6 and an adjusting screw 7.

[0026] The intermediate pulley 31 of the intermediate pulley assembly 3 is a double-layer pulley; the crankshaft belt 2 surrounds one layer of the crankshaft pulley 1 and the intermediate pulley 31; the fan belt 4 surrounds the other layer of the intermediate pulley 31 and the fan pulley assembly 5. The tripod assembly 6 is installed on the gantry frame structure of the passenger car underframe, and includes two inclined beams 61, a middle pulley mounting bracket 62, a fan pulley mounting bracket 63 and three top angle assemblies 64; two inclined beams 61 are The rectangular tube, the middle pulley mounting bracket 62 and the fan pulley mounting bracket 63 are stamped parts. The middle pulley mounting bracket 62 is the bottom sid...

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Abstract

The invention discloses a bus fan-belt transmission mechanism which comprises a crankshaft pulley, a crankshaft belt, a central pulley assembly, a fan belt, a fan pulley assembly and a triangular frame assembly. A central pulley of the central pulley assembly is a double-layer pulley. The crankshaft belt surrounds the crankshaft pulley and a layer of the central pulley. The fan belt surrounds the other layer of the central pulley and the fan belt pulley assembly. The triangular frame assembly comprises two inclined beams, a central pulley mounting support and a fan pulley mounting support. The central pulley mounting support is taken as a base edge to form a triangle frame of the triangular frame assembly with the two cant beams. The fan pulley mounting support is mounted in the center of the triangle frame. The fan pulley mounting support and the central pulley mounting support are mounted in the triangular frame assembly, so that assembly accuracy of the fan pulley mounting support and the central pulley mounting support on the triangular frame assembly is improved, and the fan belt can be well matched with two belt grooves. The bus fan-belt transmission mechanism is simple to assemble, and structure stability thereof is improved.

Description

Technical field [0001] The invention relates to a fan belt drive mechanism of a rear cooling system for a bus. Background technique [0002] With the development of rear-engined bus technology, the fan belt drive mechanism of the rear-mounted car cooling system is also constantly improving. In a common fan belt drive mechanism, the power source of the belt drive is the engine. The power output from the engine crankshaft pulley is transmitted to the intermediate pulley through the crankshaft belt, and then transmitted to the fan pulley through the fan belt to drive the fan to rotate to the radiator for heat dissipation. The fan pulley and the intermediate pulley of the existing passenger car fan belt drive mechanism are installed separately, the flatness between the two is difficult to ensure, and the assembly accuracy is not enough, resulting in insufficient engagement between the fan belt and the two belt grooves, and the assembly efficiency is low , The stability is not high. ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F01P5/04F16H7/02
Inventor 王雪飞钱建清李仁平陈顺华李波
Owner 北汽重型汽车有限公司
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