Mining machinery lifting self-locking device
A self-locking device and mechanical technology, applied in mechanical equipment, supporting machines, machines/stands, etc., can solve the problems of mechanical fall and damage, poor self-locking effect, poor protection effect, etc., and achieve high safety and practicability. High, safety-enhancing effect
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[0022] Embodiment: by starting the driving motor 13, the driving motor 13 works to drive the second two-way screw mandrel 28 to rotate, and the rotating second two-way screw mandrel 28 can drive the first two-way screw mandrel 5 to rotate through the shaft coupling 11, and the rotating first two-way screw mandrel 28 can rotate. The screw mandrel 5 and the second two-way screw mandrel 28 can drive two nut blocks 6 on its upper end to move towards or back to each other. At this moment, the nut block 6 drives the guide slide block 9 to slide in the guide chute 10 through the guide rod 7, and then can Drive the support plate 1 to move up and down through the first hinged rod 4 and the second hinged rod 18 to realize the adjustment of the height of the support plate 1. After the adjustment is completed, the drive motor 13 is turned off, and the first two-way screw rod 5 and the second two-way screw are stopped. The driving force of the rod 28 can further realize the locking of the s...
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