Ground direct-drive screw pump oil extracting device

Abstract

The invention provides a ground direct-drive screw pump oil extracting device which comprises a base, a load-bearing frame, a drive device and a sealing connection sleeve. The load-bearing frame is installed on the base, the base is provided with a machine frame for fixing the load-bearing frame, the load-bearing frame is provided with a blowout preventer, the blowout preventer is provided with a sealing pipe sleeve, the load-bearing frame is provided with a rotary shaft, the drive device is installed on the machine frame, the output end of the drive device is connected with a speed changing box, the output end of the speed changing box is connected with a driving gear, the rotary shaft is provided with a driven gear matched with the driving gear, a polished rod penetrates through the rotary shaft, a protective cover is arranged on the load-bearing frame, a coded disc shell is arranged above the protective cover, a coded disc is arranged in the coded disc shell, the sealing connection sleeve is installed at the upper end of the rotary shaft, and a square clamp matched with the polished rod is arranged in the sealing connection sleeve. The oil extracting device is simple in structure, convenient to use and install, easy to operate, low in energy consumption, efficient and stable in operation, good in sealing effect, low in manufacturing cost, wide in application range, long in service life, safe and reliable.

Description

technical field [0001] The invention relates to a ground direct drive screw pump oil production device. Background technique [0002] At present, the conventional screw pump ground drive system is generally composed of an asynchronous motor, a belt and a reducer. The power output shaft of the motor converts electrical energy into mechanical energy, and drives the sucker rod through the belt and reducer through the house card, thereby driving the rotor of the screw pump. Realize the lifting of crude oil; such a drive system has difficulty in speed regulation and vibration under high-speed operation, and the high speed of the belt transmission easily leads to high heat generation and increased wear. In addition, the gearbox needs frequent maintenance, and the anti-reverse device is easy to damage itself The equipment, the whole structure is complicated, and the on-site installation operation process is cumbersome and inefficient. Contents of the invention [0003] The techn...

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Problems solved by technology

[0002] At present, the conventional screw pump ground drive system is generally composed of an asynchronous motor, a belt and a reducer. The power output shaft of the motor converts electrical energy into mechanical energy, and drives the sucker rod through the belt and reducer through the house card, thereby driving the rotor of the screw pump. Realize the lifting of crude oil; such a drive system has difficulty in speed regulation and vibration under high-speed operation, and the high speed of the belt transmission easily leads to high heat generation and increased wear. In addition, the gearbox needs frequent maintenance, and the anti-reverse device is easy to damage itself Equipment, the whole structure is complicated, and the on-site installation operation process is cumbersome and inefficient.

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