Universal joint connection device for sucker rod in inclined well section of surface-driven oil production screw pump well
A connecting device and universal joint technology, which is applied in the direction of drill pipe, drilling equipment, earthwork drilling and mining, etc., can solve the problems of not being able to bear tension but only being able to bear pressure
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[0015] The present invention will be further described below in conjunction with accompanying drawing and specific embodiment:
[0016] The present invention as figure 1 , figure 2 , image 3 , Figure 4 As shown, the two ends of the universal joint 2 are equipped with pressure bearing ball seats 6, the end of the deflection shaft 8 is connected with the box joint 1 through threads, and the spherical surface of the other end is passed through the pressure bearing ball seat 6 and the spherical pressure cap 7 axis. fixed on the universal joint 2, the steel ball 3 is installed in the semicircular arc groove on the inner circular surface of the end of the universal joint 2 and the ball socket on the spherical surface at the end of the deflection shaft 8, the steel ball 3 can be Axial movement in the semi-arc groove on the inner circular surface of the end of the joint joint 2, the deflecting shaft 8 transmits torque through the steel ball 3, and at the same time the deflecting...
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Abstract
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