Double-horse-head permanent magnet direct-drive oil pumping unit driving device

Abstract

The invention relates to the technical field of oil pumping units, and discloses a double-horse-head permanent magnet direct-drive oil pumping unit driving device, first sliding grooves are formed in the top ends of the inner walls of the two sides of a U-shaped frame, first sliding blocks are slidably connected to the interiors of the first sliding grooves, and lifting pressing plates are fixed to the ends, away from the first sliding grooves, of the first sliding blocks, a servo motor works to drive a transmission rod to rotate, the transmission rod drives an internal thread sleeve to rotate through external thread teeth, the internal thread sleeve drives a lifting pressing plate to descend through limiting sliding of a first sliding block in a first sliding groove, the lifting pressing plate drives a locking clamping plate to descend through a spring telescopic rod, and therefore a movable roller slides on the outer wall of a transmission shaft, and when the horsehead rotates, the locking clamping plate can be driven to be inserted into the locking groove through deformation recovery of the spring telescopic rod, the inserted locking clamping plate can lock the transmission shaft, the weight generated by inertia of the horsehead is borne through the locking clamping plate, and the protection effect on the driving mechanism is effectively achieved.

Description

Technical field [0001] The present invention relates to the field of penetrating machines, in particular a double-headed permanent magnet direct drive carrier drive. Background technique [0002] The peeling machine is an essential equipment in oil extraction. Generally, each crude oil production well uses at least one pumping machine, and the petroleum hidden in the underground is extracted from the oil through the pumping tube. [0003] The driving device of the double-headed pumping machine is combined by the drive box, the drive wheel, the transmission shaft, the gear plate, the active wheel, the permanent magnet motor, and the drive belt. The active wheel is rotated by the permanent magnet motor. The active wheel passes through the drive. The belt drives the drive wheel rotation, the drive wheel drives the engaged gear disc rotation, and then rotates through the drive pan, the rotation shaft passes through the crank, the link to the boiler, and the smaller range, when mainte...

AI Technical Summary

Problems solved by technology

[0003] The driving device of the double donkey head pumping unit is composed of a drive box, a transmission wheel, a transmission shaft, a gear plate, a driving wheel, a permanent magnet motor and a transmission belt. The permanent magnet motor drives the driving wheel to rotate, and the driving wheel passes through the transmission The belt drives the transmission wheel to rotate, and the transmission wheel drives the meshing and connected gear disc to rotate, and then drives the transmission shaft to rotate through the transmission disc, and the rotating shaft drives the double donkey head of the pumping unit to rotate repeatedly in a small range through the crank and connecting rod. The driving rotation needs to stop, the permanent magnet motor stops rotating, the transmission wheel locks the gear plate through the meshing connection, so that it drives the transmission shaft to stop rotating, but because the double donkey heads are heavy, after the transmission shaft stops rotating, the donkey head is easy Inertia exerts pressure on the crank. Due to the connection between the crank and the transmission shaft, the pressure force on the crank will be transmitted to the gear plate through the transmission shaft, which will easily cause damage to the teeth, which will cause the drive device to restart. Local transmission is unstable and stable, so a double donkey head permanent magnet direct drive pumping unit driving device is proposed

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