Composite oil sucking rod centralizer
A technology for sucker rods and centralizers, which is applied to drill pipes, drilling equipment, and earthwork drilling and production, and can solve the problems of difficult replacement, increased contact surface between the ball and the inner wall of the tubing, direct contact and eccentric wear of the sucker rod and the inner wall of the tubing and other problems, to avoid direct contact and eccentric wear, to facilitate the replacement of balls, and to reduce friction
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[0023] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.
[0024] see Figure 1-6 , a composite sucker rod centralizer, including an outer cylinder 2 that is movably fitted inside a sucker pipe 1 and an eccentric wear mechanism 3 fixedly installed on the surface of the outer cylinder 2. Six mounting grooves 21 are provided on the surface of the outer cylinder 2. The inner wall of cylinder 2 is provided with oil guide holes 4, the number of oil guide holes 4 is six, and the six oil guide holes 4 are spirally and symmet...
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