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Instrumented roller bearing device

A roller bearing and instrumentation technology, applied in the field of instrumented roller bearings, achieves the effect of simple structure and simple installation

Inactive Publication Date: 2009-05-06
AB SKF
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] A significant disadvantage of this device is the inclusion of a sensor unit provided with an area of ​​axial abutment against the front radial surface of the non-rotating ring of the roller bearing
This can be very troublesome, especially in the case of small-sized roller bearings whose front face is used as a reference surface against a shoulder or some other surface of the associated housing

Method used

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  • Instrumented roller bearing device
  • Instrumented roller bearing device
  • Instrumented roller bearing device

Examples

Experimental program
Comparison scheme
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Embodiment Construction

[0043] It can be seen from the figure that the instrumented roller bearing device 1 includes a roller bearing 2 and a detection assembly 3 associated with the roller bearing 2 . The roller bearing 2 comprises an outer ring 4, an inner ring 5, a row of roller elements 6, in this case balls, a frame 7 for maintaining an even circumferential spacing of the roller elements 6, and a A sealing plate 8 in the groove 9 which forms a narrow channel with the axial land of the inner ring 5 .

[0044] The rings 4 and 5 each comprise a raceway 4a, 5a on their bore and axially outer surface respectively. The raceways 4a and 5a are toroidal in shape and may be formed by machining a part of a tube or from an annular blank.

[0045] The outer ring 4 also includes two grooves 9 and 10 near the radial front surface of said outer ring 4 . The grooves 9 and 10 are symmetrical with respect to a plane passing through the center of the roller element 6 .

[0046] The rings 4 and 5 are symmetrical wi...

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PUM

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Abstract

The invention provides a instrumentation roller bearing device, comprising a rotating ring (5), a non-rotating ring (4), a testing component (3), and a detection of component (3) equipped with a sensor unit (11). The sensor unit (11) comprises an external annular part (11b) and positioning in the external annular part (11b) on the sensor unit and to maintain axial rings in the non-rotating device. The outer diameter of the external annular part (11b) is less than the diameter of the first non-rotating ring radial surface (4b) in diameter.

Description

technical field [0001] The invention relates to the field of instrumented roller bearings, which can detect rotational parameters, such as angular velocity, displacement, etc., of elements of a rotating ring fastened to the bearing. Background technique [0002] It is known that such instrumented roller bearings comprise a bearing mounted with a sensor unit comprising sensors interacting with an encoder element fixed to a rotating part of the bearing or an assembly connected to a rotating ring of the bearing. [0003] The sensor unit is often made of injection molded plastic and includes one or more sensors connected to signal processing circuitry. The sensor unit often includes a connector for outputting the signal from the instrumented roller bearing to an external signal acquisition system. [0004] For mounting the sensor unit to a non-rotating ring of a roller bearing, a ring of hook-like protrusions or a continuous annular rib that fits into a groove of said non-rotat...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01P3/44F16C41/00F16C19/52F16C33/80
CPCF16C19/06F16C19/52G01P3/487F16C33/80F16C41/007G01P3/443F16C2300/02
Inventor 西尔万·乔萨特奥利维尔·朱伯特利蒂希亚·珀蒂
Owner AB SKF