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Idle wheel device for gearbox of loader

A gearbox and loader technology, applied in transmission parts, mechanical equipment, gear lubrication/cooling, etc., can solve the problems of poor lubrication conditions of ball bearings, low reliability of gearboxes, and high failure rate, and achieve good operation and extended life, the effect of avoiding eccentric wear of the idler

Inactive Publication Date: 2013-04-10
龙工(上海)机械制造有限公司 +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The ball bearing 11 in this device is splash lubricated from the outside only by the second oil hole 22 on the oil guide ring 14 through the second oil ring groove 23 and the fourth oil hole 25, especially for ball bearings rotating at high speed. 11 is to prevent the entry of splashing oil, so the lubrication condition of the ball bearing is relatively bad, resulting in the bearing burning and high failure rate
The above-mentioned deficiency of the idler device is also one of the main reasons for the low reliability of this gearbox

Method used

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  • Idle wheel device for gearbox of loader
  • Idle wheel device for gearbox of loader
  • Idle wheel device for gearbox of loader

Examples

Experimental program
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Embodiment 1

[0021] The purpose of the present invention is to replace as few parts as possible without changing the layout of the gearbox and without changing the casing of the gearbox, and to overcome the shortcomings of the current idler device on the basis of ensuring the installation and interchangeability of the assembly. A new loader gearbox idler device to improve the reliability of the loader gearbox.

[0022] The present invention is a loader gearbox idler device, such as figure 2 As shown, it is a sectional view of an idler device of a loader gearbox. The box body 6 is connected with the box cover 7, and the box body 6 is connected with the box cover 7 through the first idler shaft 5, and an O-ring 10 is installed between the first idler shaft 5 and the box cover 7, so that the first idler shaft 5 and the The case covers 7 are sealed, and the first idler shaft 5 and the case cover 7 are fixed by bolts 8 and elastic washers 9 . The second lubricating pressure oil passage 20 is...

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Abstract

The invention discloses an idle wheel device for a gearbox of a loader. The idle wheel device comprises a box body, and the box body is connected with a box cover; the idle wheel device is characterized in that the box body is connected with the box cover through a first idle wheel shaft; a second lubricant pressure oil passage is arranged in the first idle wheel shaft; the second lubricant pressure oil passage is connected with a first small oil through hole which is formed in the first idle wheel shaft; the first idle wheel shaft is provided with a first idle wheel; and two rolling bearings with retaining rings are formed in the first idle wheel. The idle wheel device provided by the invention has the characteristics of high reliability, convenience in bearing lubrication, low noise and the like.

Description

technical field [0001] The invention relates to an idle gear device of a loader gearbox, belonging to the technical field of loader gearboxes. Background technique [0002] At present, the vast majority of wheel loaders at home and abroad use gear-type power shift gearboxes, and most gearboxes have idler working devices that can change directions. Such as figure 1 Shown is the sectional view of the existing idler device. In this device, comprise the second idle gear 12, the second idle gear 12 is installed on the casing 6 by the second idle gear shaft 15, has the first lubricating pressure oil channel 19 in the second idle gear shaft 15, the second idle gear shaft 15 , the periphery of which is equipped with a shaft sleeve 13, and the case cover 7 is fixed on the second idler shaft 15 through the elastic washer 9 and the bolt 8, so that the second idler shaft 12 cannot fall off, and the passage between the second idler shaft 15 and the case cover 7 The O-ring 10 is sealed...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16H57/023F16H57/04
Inventor 詹永红梅宇清刘霞王孙濂陈超
Owner 龙工(上海)机械制造有限公司
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