Rotary device with sensor and method for forming apparatus for measuring load on rolling bearing unit

A technology of rotating device and rolling bearing, which is applied in the direction of measuring device, rolling contact bearing, bearing assembly, etc., can solve the problems of contamination of the rotation speed detection sensor detection accuracy, damage to the durability of the rolling bearing unit, and reduction of rolling fatigue life, etc. Effects of flux leakage, large manufacturing tolerances, enhanced joint strength

Inactive Publication Date: 2006-06-28
NSK LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

As a result, the durability of the rolling bearing unit including the load measuring device incorporated therein may be impaired (decreased rolling fatigue life)
Also, contamination of lubricating oil with powdery or microfibrous materials may cause a decrease in the detection accuracy of the rotation speed detection sensor

Method used

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  • Rotary device with sensor and method for forming apparatus for measuring load on rolling bearing unit
  • Rotary device with sensor and method for forming apparatus for measuring load on rolling bearing unit
  • Rotary device with sensor and method for forming apparatus for measuring load on rolling bearing unit

Examples

Experimental program
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Effect test

example 1

[0097] Example 1 includes a magnet sensor 5 positioned outside the two rows of bearings 2 and 3, and example 3 includes a magnet sensor 5 positioned between the two rows of bearings (two holders 14), such as Figure 4 shown.

[0098] exist Figure 4Among them, the hub unit used for the wheel bearing is composed of hub wheel 13 and angular contact ball bearing 17. The hub wheel 13 has a radially outward flange 13a on which a wheel, not shown, is mounted, and a hollow shaft 13b having a bearing rotatably supported by an angular contact ball bearing 17 Assembly area. The angular contact ball bearing 17 is of the double row outward type, comprising an inner ring, a separate outer ring 16, a plurality of balls 18a, 18b and two crowned cages 14a, 14b, wherein said inner ring is formed directly on the hollow shaft 13b The inner ring race 15a on the top and the inner ring member 15c fitted on the small-diameter circumference of the hollow shaft 13b with the inner race 15b are forme...

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Abstract

The invention discloses a rotating device, comprising a main body; a rolling bearing attached to the main body, the rolling bearing comprising an inner ring, an outer ring and a cage for rollingly holding rolling members; a ring magnet with multi-pole magnetization; a back a back yoke forming member; a magnetic sensor located on said body. The ring magnet and the back yoke forming member are integrally provided on the holder and opposed to the magnetic sensor with a predetermined distance.

Description

technical field [0001] The present invention relates to a rotating device having a sensor capable of measuring the rotating speed of a bearing holder used in the rotating device to detect the rotating speed of a rotating shaft or to estimate the rotating device and a method of forming the rotating device on the load. [0002] Furthermore, the device for measuring the load on a rolling bearing unit according to the invention relates to the improvement of a rolling bearing unit for supporting the wheels of moving bodies such as automobiles, rail vehicles and transport vehicles, said device for measuring the load on a rolling bearing unit (one or two of radial load and axial load) in order to ensure the stability of the moving body during its movement. Background technique [0003] At present, a rotating device for detecting the rotational speed of a rotating shaft supported by a bearing generally has, for example, a magnetic encoder mounted on a rotating portion of the bearin...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16C19/52G01P3/487F16C19/18F16C33/41F16C41/00G01L5/00G01P3/44
Inventor 青木护小野浩一郎柳泽知之
Owner NSK LTD
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