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Overspeed inductor for mine car

A sensor and mine car technology, applied in the direction of equipment with unique mechanical means, can solve the problems of insufficient sensitivity and easy damage of mechanical overspeed sensors, and achieve the effect of simple structure, convenient maintenance and high sensitivity

Inactive Publication Date: 2012-05-09
唐进元
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In order to overcome the problem that the existing speed sensor is easily damaged in harsh environments and the sensitivity of the mechanical overspeed sensor is not enough, the invention provides an overspeed sensor for mine cars, which can adapt to the harsh mine environment and will not generate electric sparks. and has a high sensitivity

Method used

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  • Overspeed inductor for mine car
  • Overspeed inductor for mine car
  • Overspeed inductor for mine car

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0012] see figure 1 , weld the bottom plate 1 on the shell 6, install the sliding core 2 in the shell 6, fix the ball 3 on the metal spring 4, fix the other end of the metal spring 4 on the bolt 5, install the bolt 5 on the shell On the body 6, the sealing ring 7 is installed in the cover plate 8, and the cover plate 8 is fixed on the shell 6 with screws 9. The overspeed sensor for the mine car is installed on the rotating shaft, and the sliding core 2 tends to move forward along the axial direction under the centrifugal force, but the ball 3 prevents the sliding core 2 from moving under the action of the metal spring 4. When the rotation speed of the mechanical overspeed sensing mechanism increases gradually, the centrifugal force of the sliding core 2 increases gradually, and the contact force between the sliding core 2 and the ball 3 increases. Since the matching part of the sliding core 2 and the ball 3 is a wedge-shaped groove, Therefore, the component force of the conta...

Embodiment 2

[0014] see figure 1 , weld the bottom plate 1 on the housing 6, install the sliding core 2 in the housing 6, fix the ball 3 on the rubber spring 4, fix the other end of the rubber spring 4 on the bolt 5, install the bolt 5 on the housing On the body 6, the sealing ring 7 is installed in the cover plate 8, and the cover plate 8 is fixed on the shell 6 with screws 9. The overspeed sensor for the mine car is installed on the rotating shaft, and the sliding core 2 tends to move forward along the axial direction under the centrifugal force, but the ball 3 prevents the sliding core 2 from moving under the action of the rubber spring 4. When the rotation speed of the mechanical overspeed sensing mechanism increases gradually, the centrifugal force of the sliding core 2 increases gradually, and the contact force between the sliding core 2 and the ball 3 increases. Since the matching part of the sliding core 2 and the ball 3 is a wedge-shaped groove, Therefore, the component force of ...

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PUM

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Abstract

The invention relates to an overspeed inductor for a mine car, which mainly comprises a base plate, a sliding core, a round sphere and a shell, and is characterized in that the base plate is fixed with the shell, the sliding core can be moved in the shell freely along an axis direction, the round sphere is in contact with a wedge slot on the sliding core and is connected with an elastic element, the other end of the elastic element is fixed on a bolt, the bolt is arranged on the shell, a cover plate is connected with the shell through a screw, and a seal ring is arranged in the cover plate. According to the invention, the speed of a rotary machine is measured by a purely mechanical structure, the structure is simple, an extra power supply and electronic elements are not needed, the maintenance is convenient, and the sensitivity is high.

Description

technical field [0001] The patent of the present invention relates to an overspeed sensor for a mine car. Background technique [0002] The overspeed sensor for the mine car is mainly used to automatically detect the speed of the mine car when it is running underground. When the speed of the mine car exceeds the set value, the overspeed sensor will automatically trigger the actuator to automatically brake the mine car. The current overspeed sensor mainly uses the speed sensor to convert the speed change into an electrical signal, and then judges the speed according to the electrical signal. This method requires an additional power source, and sparks are easily generated during operation, and the equipment has relatively high environmental requirements. High, it is not suitable for workplaces with harsh environments such as mines. On the other hand, the existing mechanical overspeed sensor is not sensitive enough. After the mine car runs overspeed, the actuator cannot be tri...

Claims

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Application Information

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IPC IPC(8): G01P3/16
Inventor 唐进元陈海锋
Owner 唐进元