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Sensor unit and instrumented bearing comprising such a sensor unit

一种传感器单元、传感器的技术，应用在转换传感器输出、仪器、测量仪器组件等方向，能够解决导线焊接裸露、焊接损坏夹套等问题，达到防止损坏的效果

Active Publication Date: 2015-10-07
AB SKF
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] This output connector can be pulled by shock, vibration, or mishandling, causing solder damage or the jacket being pulled out, exposing the wires and solder

Method used

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  • Sensor unit and instrumented bearing comprising such a sensor unit
  • Sensor unit and instrumented bearing comprising such a sensor unit
  • Sensor unit and instrumented bearing comprising such a sensor unit

Examples

Experimental program
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Embodiment Construction

[0032] Figure 1 to Figure 8 Instrumented bearing A is shown on . The instrumented bearing A comprises a bearing B comprising an outer ring 2 forming a non-rotatable element, an inner ring 4 forming a rotatable element, and rolling elements such as balls 6 arranged between the outer ring 2 and the inner ring 4 . The rolling bearing B has an axis of rotation X-X'.

[0033] The instrumented bearing also includes a sensor unit 8 , which includes an encoder 82 , which rotates rapidly with the inner ring 4 . The encoder 82 includes a metal frame 82a and a magnetic ring 82b.

[0034] The sensor unit 8 also comprises a sensor body 84 having an annular shape centered around the axis X-X′ and comprising a plurality of sensing elements 86 fixed relative to the bezel 2 and adapted to be detected by an encoder 82 The rotational speed and direction of the encoder 82 or the angular position is sensed by the change of the magnetic field generated by the rotation about the axis X-X'. The ...

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PUM

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Abstract

This sensor unit (8) for sensing the angular position of a rotatable element (4) with respect to a non-rotatable element (2) comprises an encoder (82) fast in rotation with the rotatable element (4), and a sensor body (84) fixed with respect to the non-rotatable element (2). The sensor body includes at least one sensing element (86) adapted to sense the angular position or the rotation speed and direction of the encoder (82), a support member (88) for signal processing means, and an output connector (94) for transmitting sensing data, the output connector (94) comprising at least one electrical wire (94a) connected to the support member (88). The sensor unit (8) comprises a tubular body (95), adapted to accommodate the output connector (94), divided into a first half shell (950) integral with the sensor body (84) and a second half shell (952) assembled with the first half shell (950) around the output connector (94). An internal surface (956) of the tubular body (95) comprises at least one radial ridge (956a, 956b) adapted to block a translation of the output connector (94) along a longitudinal axis (X95) of the tubular body (95) by penetrating into a sheath (94b) of the output connector (94).

Description

technical field [0001] The invention relates to a sensor unit for sensing the angular position of a rotatable element relative to a non-rotatable element. The invention also relates to an instrumented bearing comprising a rolling bearing and such a sensor unit. Background technique [0002] Instrumented bearings are equipped with a sensor unit that typically includes an output connector plugged on the sensor unit's printed circuit board and adapted to send sensed data to a receiving device. Output connectors typically include several electrical leads that are soldered to a printed circuit board. The wires are protected by a jacket, and the jacket covers and protects the weld. [0003] Such output connectors can be pulled by shock, vibration, or mishandling, causing solder damage or the jacket being pulled out, exposing the wires and solder. When the jacket is removed, the airtightness of the connector is lost and water or foreign particles can come into contact with the w...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01D11/24
CPCG01D11/245G01D5/245G01P3/443G01P3/487G01D5/2006
Inventor O.切夫F.巴卡特N.多梅特J.卡纳克
Owner AB SKF
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