Roller-bearing preloading adjustment structure and method

A technology for adjusting the structure of roller bearings, applied in the direction of bearing components, shafts and bearings, rigid supports of bearing components, etc., can solve the problems of high manufacturing cost and installation cost, low efficiency, and prolonged operation cycle of parts, and achieve reduction Use, efficient effect

Inactive Publication Date: 2017-10-24
CHONGQING GEARBOX
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In the prior art, the clearance adjustment and preload of roller bearings are usually realized by grinding and adjusting pads, and its axial fixation is mainly realized by bearing end covers. When assembling bevel gears or worms, usually It is necessary to adjust the axial position of the bevel gear or worm, which is also to adjust

Method used

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  • Roller-bearing preloading adjustment structure and method
  • Roller-bearing preloading adjustment structure and method
  • Roller-bearing preloading adjustment structure and method

Examples

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Embodiment 1

[0048] Such as Figure 1-7 As shown, the present invention discloses a roller bearing preload adjustment structure, which includes a roller bearing 1 , a bearing housing 2 and a bearing lock nut 3 .

[0049] Wherein, the roller bearing 1 can be installed on the transmission shaft, and the transmission shaft can be an input shaft or an output shaft. The roller bearing 1 is supported by the bearing housing 2 , and the outer diameter of the roller bearing 1 is in contact with the inner hole wall of the bearing housing 2 .

[0050] The bearing seat 2 is installed on the casing, and the outer end of the inner ring of the bearing seat 2 has an internal fine thread at a suitable position.

[0051]The bearing lock nut 3 is provided with an outer fine thread that engages with the inner fine thread on the bearing seat 2, and the inner end surface of the bearing lock nut 3 abuts against the outer ring of the roller bearing 1, wherein the bearing is locked The inner end surface of the n...

Embodiment 2

[0057] In the second embodiment provided by the present invention, the roller bearing preload adjustment structure in this embodiment is similar to the roller bearing preload adjustment structure in Embodiment 1, and the similarities will not be repeated here. Only the differences are presented.

[0058] In this embodiment, it is specifically disclosed that the roller bearing preload adjustment structure also includes a stop washer 4 detachably installed on the bearing seat 2, the stop washer 4 can lock the bearing lock nut 3, and the stop washer 4 The setting further strengthens the connection firmness between the bearing lock nut 3 and the bearing housing 2, and prevents the bearing lock nut 3 from loosening due to vibration and the like.

[0059] Further, the present invention specifically discloses a specific connection structure between the stop washer 4 and the bearing seat 2: a plurality of bosses 301 are evenly distributed on the end surface of the bearing lock nut 3, ...

Embodiment 3

[0074] In the third embodiment provided by the present invention, the roller bearing preload adjustment structure in this embodiment is similar to the roller bearing preload adjustment structure in Embodiment 2, and the similarities will not be repeated here. Only the differences are presented.

[0075] In this embodiment, it is specifically disclosed that in the roller bearing preload adjustment structure, the end surface of the bearing lock nut 3 is uniformly provided with a plurality of grooves. The stop washer 4 includes a third plate, a fourth plate and a fifth plate, the third plate is vertically connected to the fourth plate, the fifth plate is vertically connected to the fourth plate, and the third plate and the fifth plate are arranged symmetrically, that is, The movable washer 4 is a U-shaped plate with a vertical bottom. A second threaded hole is opened on the third plate, a third threaded hole is opened on the fifth plate, both the third plate and the fifth plate ...

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PUM

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Abstract

The invention discloses a roller bearing preload adjustment structure and method. The roller bearing preload adjustment structure includes: a roller bearing capable of being installed on a transmission shaft; a bearing seat supporting the roller bearing, and the bearing seat is installed in a box On the body, and the inner ring of the bearing seat is provided with an internal thread; the bearing lock nut is provided with an external thread that engages with the internal thread on the bearing seat, and the inner side of the bearing lock nut is in contact with the roller bearing the outer ring abutment. The roller bearing preload adjustment structure disclosed in the present invention adjusts the bearing lock nut when adjusting the axial positioning of the roller bearing. Since the bearing lock nut and the bearing seat are threaded, the bearing lock nut rotates One turn, forward or backward by one pitch, so as to ensure that the clearance and preload of the roller bearing meet the technical requirements, and realize the axial position adjustment of the transmission parts such as the gear on the transmission shaft. The use of grinding parts is reduced, and the adjustment can be realized only by rotating the bearing lock nut, which has high efficiency.

Description

technical field [0001] The invention relates to the technical field of bearings, in particular to a roller bearing preload adjustment structure and method. Background technique [0002] Roller bearings are one of the widely used parts in modern machinery, which has the advantages of small frictional resistance, low power loss, and easy start-up. When in use, the roller bearing needs to be positioned axially to adjust the axial position of transmission parts such as gears to ensure that the clearance and preload of the bearing meet the technical requirements; the accuracy of its axial positioning and adjustment will affect Roller bearing clearance, normal backlash and gear coloring will cause impact loads on the active and passive gears, which will aggravate the wear of the gears. It will cause the roller bearing to overheat or burn out, which directly determines the assembly quality and service life of mechanical parts. [0003] In the prior art, the clearance adjustment a...

Claims

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Application Information

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IPC IPC(8): F16C35/063F16C35/06F16H57/023
CPCF16C35/063F16C35/06F16H57/023
Inventor 王猛高德芳宋绍峰谭俊周飞鸿
Owner CHONGQING GEARBOX
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