Pre-tightening device of coupled thrust ball bearings

A thrust ball bearing, paired technology, applied in the direction of bearings, flexible bearings, bearing components, etc., can solve the problems of complex structure, troublesome adjustment, difficult automatic compensation, etc., and achieve the effect of large contact area and uniform elastic force

Pending Publication Date: 2018-03-23
LUOYANG INST OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the structure of the preloading device of paired thrust ball bearings is complicated,

Method used

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  • Pre-tightening device of coupled thrust ball bearings

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Embodiment Construction

[0023] In order to further explain the technical means and effects that the present invention adopts to achieve the intended purpose of the invention, the specific implementation, structure, Features and their functions are described in detail below.

[0024] see figure 1 , a pair of thrust ball bearing preloading devices, including a nut 1, an annular inclined section spring 9, two clamping plates, two thrust ball bearings 3 back-to-back sets on the transmission shaft 10, the outer rings of the two thrust ball bearings 3 Both are supported on the bearing seat 4; the inner rings of the two thrust ball bearings 3 are fixed by the nut 1 and the first bushing 2, and the first bushing 2 is clamped between the nut 1 and the thrust ball bearing 3 near the end of the transmission shaft 10 Between the inner rings of the drive shaft 10, the nut 1 is installed on the end of the transmission shaft 10 and pressed against the first sleeve 2, which can move axially through rotation; the ou...

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Abstract

Disclosed is a pre-tightening device of coupled thrust ball bearings. The pre-tightening device of coupled thrust ball bearings includes a nut, a circular inclined section spring, and two clamping plates. The two thrust ball bearings are arranged on a transmission shaft back to back in a sleeving mode and the outer rings are all supported on a bearing seat; the inner rings of the two thrust ball bearings are fixed through the nut and a first shaft sleeve; the outer rings of the two thrust ball bearings are fixed through a bearing end cover, and a second shaft sleeve; a first clamping plate isarranged on the shaft shoulder of the transmission shaft; a second clamping plate is arranged on an inner ring of the thrust ball bearing close to the shaft shoulder of the transmission shaft; an elastic part is arranged between the first clamping plate and the second clamping plate in a clamping mode; and the elastic part is pressed by force when the nut is tightly screwed. According to the pre-tightening device of coupled thrust ball bearings, the circular inclined section spring is adopted, the contact area is larger and elastic force is uniformed. During arranging, the spring is forced togenerate certain pre-compression by screwing the nut tightly in different degrees, and amount of clearance generated by abrasion of a rolling element and a roller path can be compensated automaticallyin virtue of a characteristic of automatic recovery of deformation of a spring.

Description

technical field [0001] The invention belongs to the technical field of clearance elimination and preloading of thrust ball bearings, and in particular relates to a paired thrust ball bearing preloading device using inclined section springs. Background technique [0002] Thrust ball bearings can bear both radial force and one-way axial force, and have a higher limit speed. When used to support the transmission shaft, they are often used in pairs, which requires a structure to eliminate clearance and apply preload, otherwise the transmission accuracy, support rigidity and bearing service life will be reduced. At present, the structure of the preloading device of paired thrust ball bearings is complicated, the adjustment is troublesome, and the automatic compensation is difficult after wear and tear. Contents of the invention [0003] In view of the foregoing problems, the purpose of the present invention is to propose a pair of thrust ball bearing pretensioning devices usin...

Claims

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Application Information

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IPC IPC(8): F16C35/063F16C27/08
CPCF16C27/08F16C35/061F16C35/063F16C2240/14F16C2300/02F16C19/163F16C19/543F16C25/083
Inventor 常家东贾贵西岳遂录
Owner LUOYANG INST OF SCI & TECH
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