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Speed ​​measuring device with overspeed protection

A technology of overspeed protection and speed measuring device, which is applied in the direction of electromechanical devices, electrical components, structural connections, etc. It can solve the problems of being susceptible to interference and the reliability of speed measuring devices is not very high, so as to improve anti-interference performance and reduce electromechanical and equipment. Damage accidents, simple and reliable structure

Active Publication Date: 2015-09-30
SEC ELECTRIC MACHINERY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] In ordinary DC motors, a speed measuring encoder is often used to directly measure the speed of the motor. This kind of speed measuring device is not very reliable, susceptible to interference, and can only measure the speed of the motor, but lacks the function of providing timely protection for the motor and equipment

Method used

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  • Speed ​​measuring device with overspeed protection
  • Speed ​​measuring device with overspeed protection
  • Speed ​​measuring device with overspeed protection

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Embodiment Construction

[0020] The specific embodiments of the present invention will be further described below in conjunction with the accompanying drawings.

[0021] Such as figure 1 As shown, the present invention includes a first support 2 , a flange 3 , a first coupling 4 , an overspeed protection switch 5 , a second support 6 , a second coupling 7 and a speed measuring encoder 8 . Insert the first support 2 (such as Figure 4 , Figure 5 shown) is fixed on the motor bearing outer cover 1 by bolts, and the end of the motor shaft is connected by bolts to the flange 3 (such as figure 2 , image 3 shown) fixed and locked in the pre-reserved threaded hole of the shaft. The axle head 3-1 size of flange 3 is allocated according to the size of the installation inner hole of the first shaft coupling 4, stretches in the inner hole of the first shaft coupling 4 during installation. The speed measuring encoder 8 is fixed on the second support 6 by screws (such as Image 6 , Figure 7 shown) on. O...

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Abstract

The invention provides a speed measurement device provided with overspeed protection. An overspeed protection switch is mounted and fixed on a first support and connected with a flange through a first coupler; and then, a speed measurement encoder is mounted on a second support and connected with the overspeed protection switch through a second coupler. The speed measurement device provided with the overspeed protection switch not only is simple and reliable in structure and convenient to mount, but also can effectively transmit a rotation speed; on the premise of guaranteeing the speed measurement function, the double protection function for measurement and control of the rotation speed of a motor is realized through the overspeed protection switch; and the speed measurement device is directly connected with the motor, so that the anti-interference capacity is high, the reliability is high, and damage accidents of mechanical and electrical equipment can be effectively prevented.

Description

technical field [0001] The invention relates to the field of speed measuring devices for motors, in particular to the structure of a speed measuring device with an overspeed protection switch. Background technique [0002] In ordinary DC motors, a speed measuring encoder is often used to directly measure the speed of the motor. This kind of speed measuring device is not very reliable, susceptible to interference, and can only measure the speed of the motor, but lacks the function of providing timely protection for the motor and equipment . Contents of the invention [0003] In view of the above problems, the present invention provides a speed measurement device with an overspeed protection switch. On the premise of ensuring the speed measurement function, by installing an overspeed protection switch, the anti-interference and reliability of the speed measurement device are improved to a greater extent. When the motor When the speed exceeds the action speed range of the ov...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02K11/00H02K11/21
Inventor 宋俊陈如
Owner SEC ELECTRIC MACHINERY