Reciprocating pump facilitating maintenance of motor shaft auxiliary supporting sliding bearing and sealing structure

Abstract

The invention discloses a reciprocating pump facilitating maintenance of a motor shaft auxiliary supporting sliding bearing and a sealing structure, and relates to the field of petroleum engineering equipment. The reciprocating pump specifically comprises a motor shaft auxiliary supporting seat, a sliding bearing seat, M12 screw washer sets, an elastic check ring for a hole, an inner wrapping framework rotating lip-shaped sealing ring, a sealing seat, the sliding bearing, cylinders, M16 bolts, a small sealing cover plate assembly, M12 screw holes, a positioning outer circle, a partition groove and the like. With the adoption of the structure, a gear shield and an inclined bull gear are not required to be disassembled, so that not only are the sliding bearing of an auxiliary support of a motor shaft and the inner wrapping framework rotating lip-shaped sealing ring convenient to maintain, but also the original precision of the sliding bearing and the inner wrapping framework rotating lip-shaped sealing ring is not changed after maintenance, and the service life of the sliding bearing and the service life of the inner wrapping framework rotating lip-shaped sealing ring are prolonged.

Description

technical field [0001] The invention relates to the field of petroleum engineering equipment, in particular to a reciprocating pump which facilitates maintenance of a motor shaft auxiliary support sliding bearing and a sealing structure. Background technique [0002] Now there are two reciprocating pumps with very similar structures in the field of petroleum engineering equipment, namely, drilling pumps and fracturing pumps. The biggest similarity is that the belt drive in the secondary transmission of the original main motor to the crankshaft and the gear drive have been cancelled. At this stage, only one stage of gear pair transmission is retained, that is, the small gears are directly installed at both ends of the motor shaft support bearing to drive the large gears at both ends of the crankshaft, which greatly shortens the original transmission chain and makes the two reciprocating pumps work together. The size and weight of the pump set are greatly reduced, and the powe...

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Problems solved by technology

[0004] These two reciprocating pumps with similar structures not only solve the deformation of the pinion shaft of the outrigger beam, but also add the function of installing the disc pump tool on the auxiliary support part of the motor shaft, so that the gear guard can not be disassembled during the disc pump. This structure needs to be equipped with vulnerable parts on the auxiliary support of the motor shaft, including the skeleton rotating lip seal ring, and there is also a need for maintenance

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