Speed ​​measuring device and installation method thereof

A technology of a speed measuring device and an installation method, which is applied in the direction of measuring device, linear/angular velocity measurement, speed/acceleration/shock measurement, etc., can solve the problems of rising wear, small speed sensing gap, and lowering the overall reliability level. The effect of anti-interference ability, large induction gap range and good assembly adaptability

Active Publication Date: 2018-04-10
湖南广思科技有限公司
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  • Abstract
  • Description
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  • Application Information

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Problems solved by technology

[0003] Among them, the photoelectric speed sensor contains a transmission bearing inside. Under the compound conditions of locomotive vibration, impact, high speed and long-term operation, the wear of the transmission bearing limits the overall reliability of the sensor; on the other hand, the sensor passes through the shaft. The square tenon at the end of the locomotive and the square hole sleeve at the end of the locomotive axle are connected to achieve transmission and speed measurement. Factors such as the matching size, lubrication state, and relative axial movement of the two connecting parts determine the wear between the two. If there is a slight abnormality, the wear will increase sharply. , rapidly lowering the overall reliability level or failing
[0004] The Hall speed sensor outputs the speed signal on the outer ring of the radial non-contact induction speed measuring toothed disc. The installation method of the shaft end is completely different from that of the photoelectric speed sensor. The sensing distance between the tooth top of the speed measuring tooth disc and the end face of the sensing head is 0.5mm -2.0mm, the sensor gap of the speed measurement is small, and the assembly adaptability is poor

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  • Speed ​​measuring device and installation method thereof
  • Speed ​​measuring device and installation method thereof
  • Speed ​​measuring device and installation method thereof

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Embodiment Construction

[0031] In order to facilitate the understanding of the present invention, the present invention will be described more fully below with reference to the associated drawings. Preferred embodiments of the invention are shown in the accompanying drawings. However, the present invention can be embodied in many different forms and is not limited to the embodiments described herein. On the contrary, these embodiments are provided to make the understanding of the disclosure of the present invention more thorough and comprehensive.

[0032] It should be noted that when an element is referred to as being “fixed” to another element, it can be directly on the other element or there can also be an intervening element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or intervening elements may also be present.

[0033] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as...

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Abstract

The speed measuring device of the present invention includes a magnetic disk and a sensor that cooperates with the magnetic disk. The magnetic disk includes a disk body and several magnetic parts arranged in the disk body. A magnetic induction channel is opened in the disk body, and the sensor includes an induction probe; several magnetic parts are sequentially arranged on the disk body and A periodically changing magnetic field is formed in the magnetic induction channel, and the induction probe extends into the magnetic induction channel to cut the magnetic induction lines of the magnetic field, and outputs a periodic pulse signal. The sensing gap range of the sensor in the speed measuring device of the present invention is large, the allowable eccentricity is large during installation, and the assembly adaptability is good. And there are no rotating parts and transmission parts inside the speed measuring device, and the saved space is all allocated to the electrical part, which is used to strengthen the anti-interference ability, which is safe and reliable. The invention also provides an installation method of the speed measuring device.

Description

technical field [0001] The invention belongs to the field of locomotive speed measurement, in particular to a speed measurement device and an installation method thereof. Background technique [0002] At present, in the field of railway locomotive speed measurement, photoelectric speed sensors with 200 pulses per circle or non-contact Hall speed sensors with 80 pulses per circle are mainly used. [0003] Among them, the photoelectric speed sensor contains a transmission bearing inside. Under the compound conditions of locomotive vibration, impact, high speed and long-term operation, the wear of the transmission bearing limits the overall reliability of the sensor; on the other hand, the sensor passes through the shaft. The square tenon at the end of the locomotive and the square hole sleeve at the end of the locomotive axle are connected to achieve transmission and speed measurement. Factors such as the matching size, lubrication state, and relative axial movement of the two...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B61C17/00G01P3/481
Inventor 彭俊吉樊翠萍王晓冰范增昌刘向平李笑龙陈文汉
Owner 湖南广思科技有限公司
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