Drive hub bearing unit spin riveting pressure measurement system and measurement method

A wheel hub bearing and measurement method technology, applied in force/torque/work measuring instrument, measuring force, measuring device, etc., can solve problems such as uncertain axial preload effect, fracture of flange shaft, affecting driving safety, etc. Achieve the effects of reasonable structural design, guaranteed safety, and simple measurement methods

Pending Publication Date: 2017-10-03
ZHEJIANG WANXIANG PRECISION IND +1
View PDF0 Cites 5 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] The current wheel hub bearing unit with spin riveting structure has no means of monitoring the axial pressure caused by the spin riveting process, and only detects the axial preload of the raceway before and after the spin riveting. This test only reflects the preload of the raceway and cannot obtain the hub The axial pressure value remaining

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Drive hub bearing unit spin riveting pressure measurement system and measurement method
  • Drive hub bearing unit spin riveting pressure measurement system and measurement method
  • Drive hub bearing unit spin riveting pressure measurement system and measurement method

Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0035] Example 1:

[0036] Such as Figure 2 to Figure 3 As shown, a driving wheel hub bearing unit spin riveting pressure measurement system, including outer ring 1, outer row of steel balls 2, inner row of steel balls 3, flange 5, outer cage 6, inner cage 7, bolts 11 and Strain gauge 9, the drive wheel hub bearing unit is provided with an inner ring 4; part of the structure of the inner ring 4 is cut and polished to form a strain ring 4a and a spin riveting ring 4b. The strain ring 4a is in clearance fit with the flange 5 journal, and the fit gap is 0.040mm, the use of this fit gap can prevent the circumferential strain effect of the strain ring 4a and the flange 5 journal due to the interference fit, and also avoid the reduction of the axial guiding effect due to the excessive gap; the spin riveting ring 4b Interference fit with flange 5; small end face of strain ring 4a and small end face of riveting ring 4b are attached to each other; the number of strain gauges 9 is 4, and ...

Example Embodiment

[0049] Example 2:

[0050] As in Embodiment 1, the difference is only that there is one strain gauge 9, which is pasted on the outer diameter of the strain ring 4a. The axial positioning is consistent with that in Embodiment 1, and the circumferential positioning is randomly arranged in the 360-degree circumferential direction.

[0051] A method for measuring the spin riveting pressure of a drive wheel hub bearing unit includes the following steps:

[0052] A. Part preparation. Part of the structure of the inner ring 4 of the drive hub bearing unit is cut and polished to form a strain ring 4a and a spin riveting ring 4b; the strain ring 4a and the flange 5 journal are in clearance fit, and the fit gap is 0.042mm; The riveting ring 4b and the flange plate 5 maintain a 0.024mm interference fit; a strain gauge 9 is pasted on the outer diameter of the strain ring 4a;

[0053] B. The parts are matched. After the outer ring 1, the outer row of steel balls 2, the inner row of steel balls 3, ...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

No PUM Login to view more

Abstract

The invention belongs to the field of automobile hub bearing unit production, and in particular relates to a driving hub bearing unit spin riveting pressure measuring system and a measuring method thereof. The measurement system includes outer ring, outer row of steel balls, inner row of steel balls, flange, outer cage, inner cage, bolts and strain gauges. The invention has a reasonable structural design and a simple and convenient measurement method, and can accurately measure the axial pressure value remaining on the hub bearing unit after the riveting process of the hub bearing unit is completed, so as to determine the axial preload effect of the bearing when the bearing is loaded, and avoid the inner ring The problem of breakage of the flange shaft caused by loosening and slipping ensures the safety of driving. Moreover, the measurement method of the present invention can demonstrate the rationality of the design of the spin riveting structure and select reasonable process parameters.

Description

technical field [0001] The invention belongs to the field of automobile hub bearing unit production, and in particular relates to a driving hub bearing unit spin riveting pressure measuring system and a measuring method thereof. Background technique [0002] The current wheel hub bearing unit with spin riveting structure has no means of monitoring the axial pressure caused by the spin riveting process, and only detects the axial preload of the raceway before and after the spin riveting. This test only reflects the preload of the raceway and cannot obtain the hub The axial pressure value remaining on the hub bearing unit after the bearing unit spin riveting process makes the axial preload effect uncertain when the bearing is installed. Due to the lack of monitoring means, it is easy to cause the inner ring to loosen and slip due to insufficient preload in actual use, and eventually lead to the fracture of the flange shaft, affecting driving safety. Contents of the invention...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
IPC IPC(8): G01L5/00G01L1/22
CPCG01L1/2262G01L5/0076
Inventor 黄德杰周旭姜金东
Owner ZHEJIANG WANXIANG PRECISION IND
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap