Permanent magnetism synchronous non-gear-wheel driving screw pump type oil production machine

The utility model relates to a permanent magnet synchronous gearless traction screw pump oil extractor. The device adopts a radial and direct transmission or flexible closed loop steel wire rope radial transmission mode.The permanent magnet synchronous motor main shaft joints with the oil extraction rod shaft to extract oil through oil extracting rod traction screw pump; the main shaft of the tractor can be turned upwards; the flexible closed loop steel wire ropes in radical the main shaft rope wheel and the rod rope wheel; through switching on the oil extracting rod the screw pump is driven for operation and control a plurality of wells to work simultaneously. The control system of the device is designed to use axis of rotation to install a photoelectric rotating coder to collect rotating speed and angle signal; frequency, voltage, current through frequency conversion controller and programmable controller PLC can be adjusted to realize the control of rotating speed, starting and stopping. The utility has th