Bearing unit of drive gear wheel

A technology of driving gears and bearings, which is applied in the field of auto parts, can solve the problems affecting the bearing capacity, restricting the quality of the central transmission mechanism of the driving middle axle, and affecting the production efficiency of the chassis assembly line, so as to achieve good economic and social benefits and shorten production. Assembly time, the effect of improving production assembly efficiency and quality

Inactive Publication Date: 2009-03-25
ZHEJIANG ZHAOFENG MECHANICAL & ELECTRONICS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The adjustment effect of the bearing pretightening force directly affects the bearing capacity of the bearing. On the one hand, this restricts the quality of the central transmission mechanism of the driving middle axle, and on the other hand, it also affects the production efficiency of the entire chassis assembly line.

Method used

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  • Bearing unit of drive gear wheel

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Effect test

Embodiment Construction

[0012] Refer to figure 1 , Driving gear bearing unit, including unit outer ring 1, two inner rings 2, two rows of tapered rollers 3, two width retainers 4 and lock catches 5. The inner side of the unit outer ring 1 is provided with two rows of parallel cones The two inner races are respectively matched with the outer races of the two inner rings 2 to form two rolling raceways; the two inner rings 2 are positioned and fixed by the lock 5; the two rows of tapered rollers 3 are respectively placed in the two pairs of cages 4 The two rows of tapered rollers 3 are respectively located in two rolling raceways and are in rolling contact with the raceways; guided by the retainer 4, the outer ring 1 of the unit is provided with a flange for directly connecting with the bridge body transition box shell. The whole unit is a fixed whole, and its pre-tightening force has been adjusted, and there is no need to set an adjustment pad for adjustment, which simplifies the structure and improves the...

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PUM

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Abstract

The invention discloses a driving gear bearing unit, comprising a unit external ring, two internal rings, two rows of conical rollers, two pairs of retainers and lock catches; the internal side of the unit external ring is provided with two rows of conical internal runways which are arranged in parallel and respectively matched with the external runways of the two internal rings so as to form two movable runways; the two internal rings are fixedly positioned by the lock catches; two rows of the conical rollers are respectively arranged in the two pairs of retainers and guided by the retainers to be respectively arranged in the two movable runways and contact with the runways in a rolling way; the unit external ring 1 is provided with a flange which is directly connected with a bridge transition box shell. The driving gear bearing unit is an integration with the finely-adjusted pre-tightening force, needs no adjustment by adjusting washers, simplifies the structure, has simple and convenient installation, shortens the production assembly time of the dual-linked driving bridge central transmission mechanism and ensures the best usage effect of the bearing unit.

Description

【Technical Field】 [0001] The present invention relates to automobile parts, in particular to a driving gear bearing unit used for the slewing support of a driving bevel gear shaft of a double drive middle axle central transmission mechanism of a heavy commercial vehicle. 【Background technique】 [0002] At present, in the double-drive middle axle central transmission mechanism of heavy commercial vehicles, the slewing support of the driving gear is composed of two sets of strictly selected single row medium-sized tapered roller bearings installed in pairs. It is composed of roller bearings, spacer rings, bearing seats, outer ring glands, adjusting gaskets and other parts. [0003] In the assembly process, there are many bearing installation parts and the assembly is complicated. The adjustment of the bearing pre-tightening force is realized by adjusting the adjusting shim on the bearing outer ring gland. The installation distance of the driving and driven gears is realized by adju...

Claims

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Application Information

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IPC IPC(8): B60B35/18F16C19/38F16C33/58F16C33/66
CPCF16C19/386F16C2361/61
Inventor 孔爱祥周守虎马文静康乃正
Owner ZHEJIANG ZHAOFENG MECHANICAL & ELECTRONICS CO LTD
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