Anti-falling centering device for sucker rod
A sucker rod and anti-separation technology, which is applied to drill pipes, drilling equipment, earth-moving drilling, etc., can solve the problem of reducing the service life of the screw pump, the sucker rod stuck in the oil well, and the sucker rod being easily stuck. and other problems, to achieve the effect of shortening the maintenance period, high connection strength, preventing eccentricity and vibration
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[0013] As shown in the figure, the sucker rod 1 is connected to the universal device 2, the screw pump is connected to the anti-loosening device 4 through the connection end 5 of the screw pump, and a connector 3 is interspersed and connected between the universal device and the anti-loosening device. The anti-off device spring assembly 6 is installed on the anti-off device.
[0014] The connector is a tubular structure, one end of which is inserted into the connection hole of the universal device, and the connector and the universal device are fastened by threading or welding.
[0015] The other end of the connector is fastened in the sleeve, and is tightly connected with the connection end of the anti-loosening device through threads.
[0016] The connector is made by hot forging process.
[0017] Since the connector is processed by upsetting and forging, the metallographic structure is dense, the connection strength is high, and the torsion resistance is large, so it can e...
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