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Miniature ball screw integrated bearing assembly

A ball screw and bearing technology, applied in bearing components, shafts and bearings, belts/chains/gears, etc., can solve problems such as noise and steel ball collision, reduce noise, improve service life and accuracy, and improve fluency Effect

Pending Publication Date: 2019-04-12
CIXING GROUP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

(3) Due to the gap between the ball return device and the screw nut in the traditional ball screw pair, it is easy to cause noise problems caused by steel ball collisions

Method used

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  • Miniature ball screw integrated bearing assembly
  • Miniature ball screw integrated bearing assembly
  • Miniature ball screw integrated bearing assembly

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Embodiment Construction

[0030] Combine below Figure 2 to Figure 6 , the present invention is further described:

[0031] Such as Figure 2-Figure 4 As shown, a miniature ball screw integrated bearing assembly includes a nut 101 and a screw 102. Between the nut 101 and the screw 102, the ball 106 of the screw is used as a rolling body to convert the rotational motion of the nut 101 into a screw. Linear motion of the bar 102. Also includes a bearing, the bearing includes a bearing outer ring 104 and a bearing inner ring, a bearing steel ball 108 and a sealing ring 107 are arranged between the bearing outer ring 104 and the bearing inner ring, and the bearing steel ball 108 is fixed on the bearing outer ring 104 by a cage 105 and the inner ring of the bearing. The bearing inner ring and the screw nut 101 are integrated into one piece. The inner ring of the above-mentioned bearing is integrated with the screw nut. Compared with the prior art bearing interference fit and pressing into the screw nut, ...

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Abstract

The invention relates to a miniature ball screw integrated bearing assembly. The miniature ball screw integrated bearing assembly comprises a nut (101) and a screw (102), wherein a screw steel ball (106) is used as a rolling body between the nut (101) and the screw (102), so that the rotary motion of the nut (101) is changed into the linear motion of the screw (102).The miniature ball screw integrated bearing assembly is characterized by further comprising a bearing; and the bearing comprises a bearing outer ring (104) and a bearing inner ring, and the bearing inner ring and the nut (101) areintegrated into one piece. According to the miniature ball screw integrated bearing assembly, the bearing inner ring is integrated with the nut, and compared with the prior art that the bearing is pressed into the nut through interference fit, the condition of axial displacement of the bearing inner ring when a ball screw pair is operated does not occur, so that the service life of the ball screwpair is prolonged, and the precision is increased.

Description

technical field [0001] The invention relates to a bearing, in particular to a miniature ball screw integrated bearing assembly. Background technique [0002] Due to its high transmission efficiency and reversibility, the ball screw pair has been widely used in various manufacturing industries and is inseparable from our lives. But with the progress of the times and the development of science and technology, the traditional ball screw pair can no longer meet all the needs. [0003] The traditional combination of ball screw pair and bearing has the following technical problems: [0004] (1) When the screw rod of the traditional ball screw pair is connected to the inner ring of the bearing, there is an axial displacement of the inner ring of the bearing when the ball screw pair is working, which affects the service life and accuracy of the ball screw pair. [0005] (2) The traditional ball screw itself does not have a self-locking function. [0006] (3) Due to the gap betwee...

Claims

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Application Information

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IPC IPC(8): F16C33/58F16H25/24
CPCF16C33/581F16H25/24
Inventor 赵坤丁立波付阳恒
Owner CIXING GROUP
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