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Axle-supporting device

A technology for supporting devices and axles, which is applied in bearing assembly, axles, measuring devices, etc., can solve the problems of decreased magnetic flux density, dependence on resolution, and inability to accurately measure rotation, and achieve the effect of reducing manufacturing costs and restraining cost increases.

Inactive Publication Date: 2010-01-06
JTEKT CORP
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  • Abstract
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  • Claims
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AI Technical Summary

Problems solved by technology

[0004] In the above-mentioned axle support device with a rotation detection device, although it is very desirable to improve the resolution of the rotation detection and realize the small diameter of the detection device, in the axle support device using the pulse ring, since the resolution depends on the pulse The number of magnetic poles carried by the ring, so in ord

Method used

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Embodiment Construction

[0066] Embodiments of the present invention will be described below with reference to the drawings.

[0067] In the following description, the left, right and up and down refer to the left and right and up and down in each figure. In addition, the left side is the inner side of the vehicle, and the right side is the outer side of the vehicle.

[0068] figure 1 The axle support device in the first embodiment shown has: a suspension member 1 mounted on a vehicle body, an axle member 2 for mounting a wheel, an outer ring 5 mounted on the suspension member 1, a The inner ring 6 on the axle part 2 , the rolling bearing 3 , and the sensor device 4 , wherein the bearing 3 has a plurality of rolling elements 7 arranged between two raceway rings 5 ​​, 6 and a cage 8 holding these rollers.

[0069] The rolling bearing 3 is a multi-row angular contact ball bearing. Between the outer ring 5 and the inner ring 6, there are left and right rows of balls as rolling elements 7. The outer rin...

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Abstract

A sensor device (4) is provided with a resolver having a stator (21) installed on a suspension member (1) and a rotor (31) provided on an axle member (2). The axle member (2) is constituted of a drive shaft (11) connected to a power transmission device and a hub shaft (12) having a wheel installation portion (13) and fixed to the drive shaft (11). The stator (21) is press-fitted into a wheel-side end portion in the axial direction, of a knuckle (1a) of the suspension member (1). The rotor (31) is press-fitted into the hub shaft (12) of the axle member (2). The stator (21) and the rotor (31) are radially opposed to each other. A rolling bearing (3) has two rows, or left and right rows, of rolling bodies (7). An outer ring (5) is made in one piece having two rows of raceway grooves. An inner ring (6) is a divided type where each division has a row of a raceway groove.

Description

[0001] This application is a divisional application of the invention patent application with the international application number PCT / JP2004 / 003148, the international application date is March 10, 2004, and the Chinese national application number is 200480006486.4. technical field [0002] The present invention relates to an axle support device for supporting the axle of a vehicle wheel, and a sensor device integrated with the axle support device for detecting various information of the vehicle is installed on the axle support device. Background technique [0003] In railway vehicles and automobiles, while supporting the axle or the rotating shaft that transmits the rotation to the axle, in order to detect the rotational speed, rotation angle, etc. of the axle, an axle support device with a rotation detection device has been used, It has a rolling bearing, a sensor device provided on the rolling bearing, and an impulse ring as a detected portion (see Japanese Utility Model La...

Claims

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Application Information

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IPC IPC(8): B60B35/18F16C41/00G01B7/30G01P3/42
Inventor 小八木桂肋阪照之井上昌弘
Owner JTEKT CORP
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