Dustproof and waterproof component of idle wheel

A dustproof, waterproof, idler technology, applied to bearing components, components with teeth, belts/chains/gears, etc., can solve problems such as poor waterproof effect, high temperature ablation, poor heat dissipation, etc., and achieve good dustproof and waterproof , reduce belt breakage, and simple structure

Active Publication Date: 2013-08-28
DONGFENG MOTOR CORP HUBEI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to provide a dustproof and waterproof component for idler gears to solve the problems of poor dustproof and waterproof effects of existing idler gear components, poor heat dissipation, and easy high temperature ablation.

Method used

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  • Dustproof and waterproof component of idle wheel
  • Dustproof and waterproof component of idle wheel
  • Dustproof and waterproof component of idle wheel

Examples

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Embodiment Construction

[0020] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0021] see Figure 3-Figure 7 , an idler dustproof and waterproof assembly, including pulley 1, bearing 2, bearing support 3, retaining ring 4, bolt 7 and dust cover, constitute an idler assembly; the front end of the inner hole of the pulley 1 is provided with a convex Platform 13, ring groove 14 is arranged on the rear end hole wall of pulley 1 inner hole; The bearing 2 is press-fitted between the boss 13 and the annular groove 14 in the inner hole of the pulley 1, and the front end of the bearing 2 is against the boss 13; the retaining ring 4 is arranged in the annular groove 14 for To limit the axial movement of the bearing 2. The bearing support 3 is arranged at the rear end of the bearing 2, and the annular cylinder at the front end of the bearing support 3 is tightly pressed against the inner ring of the bearing 2, and the mi...

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Abstract

A dustproof and waterproof component of an idle wheel comprises a belt wheel (1), bearings (2), a bearing support (3), retaining rings (2), a bolt (7) and a dustproof cover. Grooves (15) are reserved on the middle-portion end face and the front-end annular cylinder outer circumference surface of the bearing support (3), diversion grooves (16) are reserved on a bolt flange and the big-diameter-end outer circumference surface of the bolt (7), the dustproof cover comprises a support (8) and a cover plate (9), a central hole (17) is reserved in the middle of the support (8), blades (10) are uniformly arranged on the end face of the support (8), threaded holes (12) are reserved among the blades (10), countersunk holes (11) corresponding to the threaded holes (12) are reserved in the cover plate (9), and the cover plate (9) is connected with the support (8) in a fastened manner through screws (5) which penetrate the support (8) to be connected with the end face of the belt wheel (1) in a mounted manner. The dustproof and waterproof component of the idle wheel is good in dustproof, waterproof and heat-dissipating effects.

Description

technical field [0001] The invention relates to an automobile mechanical transmission accessory, and more specifically relates to an idler wheel dustproof and waterproof assembly, which belongs to the technical field of automobile engine accessory drive systems. Background technique [0002] In a mechanical transmission, the idler pulley enables the steering of the transmission, enabling the transmission to change direction with minimal loss of efficiency. In fact, the working environment of the commercial vehicle transmission system is very harsh, high temperature, high pressure, loud noise, dusty, even in some very humid environments, moisture and dust can easily form mud and enter the transmission parts, thus affecting the transmission efficiency , resulting in accelerated idler bearing wear and shortened service life. The traditional idler dust-proof assembly has two structures, see figure 1 , figure 2 , including pulley 1, bearing 2, bearing support 3, retaining rin...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16H55/36F16C33/72F16C37/00
CPCF16H7/20
Inventor 涂志涛吴囿林张芳吴红亮
Owner DONGFENG MOTOR CORP HUBEI
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