Indirectly driven traction type pumping unit
A pumping unit and traction technology, applied in the field of traction pumping units and indirect drive traction pumping units, can solve the problems of insufficient loss-of-load protection, limited application environment, limited traction force, etc., and increase the use of The effect of life and safety factor, increased safety, and balanced force distribution
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[0028] according to Figure 1-5 The specific structure of the present invention will be described in detail. The indirect drive traction pumping unit includes a frame 19, a frame 4, a suspension device arranged on the frame 19, a traction device and the like. Among them, the suspension device has no traction power, and basically only plays the role of balancing bearing capacity. It includes an upper suspension wheel 1 arranged on the top of the frame 19. The upper suspension wheel 1 suspends the sucker rod 3 and the counterweight 18 respectively on both sides of the upper suspension wheel 1 through the suspension steel wire rope 2. Oil, the counterweight 18 moves up and down inside the frame 19 along the guide rail 17. The last suspension wheel 1 that is arranged on frame 19 tops is a non-powered mechanism, only plays suspension and guiding effect, so its diameter can be done very big. The diameter of suspension wire rope 2 depends on the hanging weight of suspension device...
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