Single plate double side stator type linear motor oil pumping machine

Abstract

The present invention provides a single plate double-sided stator type linear motor oil pumping machine with low manufacture cost, reasonable structure and long service life. The oil pumping machine includes main frame, frame fixing structure, linear motor mover and linear motor stator; and features that the linear motor stator is one single plate double-sided stator fixed onto the main frame and with two sides matched to the mover. The linear motor mover is block type combined structure comprising mover block and matched linear bearing type mover track, and the mover block is height adjustable block. The frame fixing structure has rotary pedestal and the linear motor has control circuit connected to an intelligent control system.

Description

technical field [0001] The invention relates to a linear motor pumping unit in oil exploitation equipment, in particular to a single-plate double-sided stator linear motor pumping unit which optimizes the structural design of the linear motor pumping unit by using the stator of the linear motor as its core equipment on both sides. . Background technique [0002] At present, the existing linear motor pumping units, after technical market investigation and literature search, including the retrieval of patented technology, we found that their basic structure is the stator clamping structure, that is, the linear motor mover is clamped in two pieces. Between the stator plates of the linear motor. This design structure has the following defects: 1. It is difficult to adjust the gap between the eight or more guide wheels on the outer sides of the linear motor mover and the edge guide rails of the two stator plates, and the clamping is too tight. During operation, not only the res...

AI Technical Summary

Problems solved by technology

This design structure has the following defects: 1. It is difficult to adjust the gap between the eight or more guide wheels on the outer sides of the linear motor mover and the edge guide rails of the two stator plates, and the clamping is too tight. During operation, not only the resistance is large, but also the bearing of the mover guide wheel is easily damaged; if the clamp is too loose, the mover body shakes between the stator plates during operation, and the guide wheel hits the track, which is also easy to damage the mover guide wheel bearings, thus shortening the service life of the linear motor

2. This stator clamping structure has high requirements on the flatness of the working surface of the stator and mover of the linear motor, as well as the flatness of the contact surface between the guide wheel and the guide rail, so the machining of these working surfaces of the linear motor components The accuracy requirements are increased accordingly, which will inevitably increase the manufacturing cost of the whole machine

3. Although this clamping structure of the stator is beneficial to the sealing and dustproofing of the motor, it causes great inconvenience to the maintenance and adjustment of the motor. In general, the maintenance staff must enter between the two stator plates of the motor, and in limited In the small box space, it is not only difficult to carry out maintenance work, but also extremely unsafe, especially when the motor mover needs to be replaced, the main frame of the motor must be laid down, the end of the frame must be opened, and the traction equipment must be used to move the motor. The motor mover is taken out, which not only wastes man-hours, but also increases equipment maintenance costs

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