Differential type spherical surface expanding mechanism

A spherical expansion and differential technology, which is applied in the direction of differential transmission, mechanical equipment, transmission, etc., can solve the problems of complex structure of the expansion mechanism, expensive expansion wheel, high use and maintenance costs, and achieve processing and maintenance costs. Low profile, simple shape, and easy replacement

Inactive Publication Date: 2018-08-03
HARBIN INST OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, there have been meridian expansion mechanisms and helical expansion mechanisms at home and abroad, but there are problems such as complex structure of the expansion mechanism, high price of the expansion wheel, high use and maintenance costs, which greatly restrict its wide application.

Method used

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  • Differential type spherical surface expanding mechanism
  • Differential type spherical surface expanding mechanism
  • Differential type spherical surface expanding mechanism

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] Use 15.081mm steel balls and ceramic balls for experimental verification, such as figure 1 , figure 2 As shown, according to the diameter of the ball to be detected, the relative position of the baffles 10 on both sides is adjusted, and the structure of the baffles 10 is as follows image 3 , Figure 4 As shown, the detected ball is located just above the driving wheel 8 and the differential wheel 9, so that the detected ball can be in a constant position during the rotation and deflection process; the first bearing end cover 5 is used to fix the first paired angle The contact ball bearing 6, the first pair of angular contact ball bearings 6 supports the driving wheel shaft 4, ensuring the rotation accuracy of the driving wheel 8; the body 7 supports the entire mechanism, ensuring the relative positional relationship between each component; the second bearing end cover 12 To fix the second pair of angular contact ball bearings 11 , the second pair of angular contact ...

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PUM

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Abstract

The invention provides a differential type spherical surface expanding mechanism and belongs to the technical field of spherical surface expanding detection. A first servo motor and a second servo motor are fixed by a first servo motor fixing support and a second servo motor fixing support respectively; a first coupler and a second coupler are connected with the first and second servo motors and adriving axle; the driving axle is connected with a driving wheel; a first bearing end cover is used for fixing first paired angular contact ball bearings; the first paired angular contact ball bearings support the driving axle; a machine body supports the whole mechanism, and the driving wheel and a differential wheel cooperate to drive a detected ball to perform rotary motion and yaw motion; a baffle limits the position of the detected ball; second paired angular contact ball bearings support a differential axle; a second bearing end cover is used for fixing second paired angular contact ball bearings; the differential axle is connected with the differential wheel. The mechanism has clear working principles, is simple and reliable in mechanical structure, controllable in operation process, adaptable to expanding motion of spherical surfaces with different diameters, low in processing and maintenance cost and convenient to replace.

Description

technical field [0001] The invention relates to a differential spherical surface expansion mechanism, which belongs to the technical field of spherical surface expansion detection. Background technique [0002] The ball is the core component of the ball bearing to achieve rolling friction, and its surface quality has an important impact on the motion accuracy, service life and dynamic performance of the ball bearing. Whether it is a steel ball or a ceramic ball, the ball blank and the processing technology will cause surface scratches, peeling, white spots, cracks and other defects, resulting in local stress concentration, which seriously reduces the rolling contact fatigue life, produces abnormal vibration and noise, and easily causes Bearings fail early and fail to reach their expected life, threatening the performance indicators of the entire mechanical system. For this reason, ball surface quality inspection is an indispensable process in the ball bearing inspection pro...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N21/952F16H48/34
CPCF16H48/34F16H2048/343G01N21/951
Inventor 赵小力岳亚美高鹏古乐王黎钦郑德志
Owner HARBIN INST OF TECH
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