Bearing device with sensor and rolling bearing with sensor

A technology of rolling bearings and sensors, which is applied in bearing assembly, measuring devices, bearing components, etc., can solve the problems of increasing assembly man-hours, restricting miniaturization, increasing the number of parts and cost, etc., to improve tensile strength, reduce assembly man-hours, reduce The effect of the number of parts

Inactive Publication Date: 2008-05-28
NSK LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, it is necessary to arrange other parts such as the shielding plate such as the magnetic shunt 862 in the space between the bearing 850 with the sensor and the magnetic sensor 860, which not only increases the number of parts and the cost, but also increases the assembly man-hours, and there is also a need for its installation. Space Necessary Constraints Miniaturization Issues

Method used

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  • Bearing device with sensor and rolling bearing with sensor
  • Bearing device with sensor and rolling bearing with sensor
  • Bearing device with sensor and rolling bearing with sensor

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Experimental program
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Effect test

no. 1 approach

[0114] Fig. 1 is a sectional view of main parts showing a first embodiment of a sensor-equipped bearing device according to the present invention. Fig. 2 is a perspective view showing a sensor cover of the sensor-equipped bearing device of Fig. 1 . 3 is a cross-sectional view of main parts showing a state in which the sensor-equipped bearing device of FIG. 1 is fixed on the bearing housing; FIG. 4 is a right side view of FIG. 3; FIG. picture.

[0115] As shown in FIG. 1 , the sensor-equipped bearing device 1 has a rolling bearing 10 . The rolling bearing 10 has an inner ring 12 as a rotating side ring, an outer ring 13 as a fixed side ring, and a plurality of rolling elements 11 rotatably interposed between the inner ring 12 and the outer ring 13 . The plurality of rolling elements 11 are held at equal intervals in the circumferential direction by cages not shown.

[0116] In addition, the sensor-equipped bearing device 1 has a sensor 20 capable of detecting the state of th...

no. 2 approach

[0135] Fig. 6 is a perspective view illustrating a second embodiment of the sensor-equipped bearing device of the present invention. In addition, in the embodiment described below, the same code|symbol or equivalent code|symbol etc. is attached|subjected to the member etc. which have the structure and function equivalent to what already demonstrated, and description is simplified or omitted.

[0136] In the present embodiment, the protruding portion 31 of the sensor cover 30 is bent so as to protrude in the radial direction by forming a cutout portion of a part of the sensor cover 30 to form a single-leaf hinged door shape.

[0137] Other structures and functions are the same as those of the above-mentioned first embodiment.

no. 3 approach

[0139] 7 is a perspective view showing a sensor cover of a rolling bearing of a sensor-equipped bearing device according to a third embodiment of the present invention.

[0140] In the present embodiment, the protruding portion 41 of the sensor cover 40 is formed by bending a part of the sensor cover 40 to protrude in the radial direction toward the side (the side surface portion 40 c ) axially opposite to that of the second embodiment to form a single-leaf hinge. door shape.

[0141] Other structures and functions are the same as those of the above-mentioned first embodiment and second embodiment.

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PUM

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Abstract

The present invention relates to a bearing apparatus with a sensor and a rolling bearing with a sensor used to movers such as automobiles or railway carriers, facility machines of equipment, or machine tools. One of the embodiments comprises a sensor detecting conditions of the rolling bearing, a ring-shaped sensor cover housing the sensor therein and secured to a stationary-side bearing ring, and a ring shaped presser member secured to a bearing housing provided outside in a radius direction of the sensor cover, or secured to a shaft, and an opening portion is provided at a decided portion of the sensor cover, and projections standing toward a side of the presser member are furnished in the circumference of the opening portion, the presser member is defined with cutouts for inserting the projections, and the cutouts are arranged with the projections.

Description

[0001] This application is a branch of an invention patent application filed on April 28, 2005 by Japan Seiko Co., Ltd. with the name "Bearing Device with Sensor and Rolling Bearing with Sensor", the application number being 200380102231.3, and the international filing date being October 24, 2003. case application. technical field [0002] The present invention relates to a sensor-equipped bearing device and a sensor-equipped rolling bearing used for mobile bodies such as automobiles and railway vehicles, equipment machinery, and working machines. Phase sensor bearing units and sensor rolling bearings. Background technique [0003] For example, anti-lock braking systems (ABC) and traction control systems (TCS) are widely used in automobiles in recent years. Such controls must accurately detect the rotation speed of the wheels. For this purpose, the rotational speed (number of rotations) of a rolling bearing that rotatably supports the wheel with respect to the suspension is...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16C41/00G01P3/487
Inventor 青木护坂谷郁纪渡部将充
Owner NSK LTD
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