Overspeed inductor for mine car

[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 contact

[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 the