CN203050642U

CN203050642U - Energy-saving type tower type oil pumping machine

Info

Publication number: CN203050642U
Application number: CN 201320023959
Authority: CN
Inventors: 洪日; 金成群
Original assignee: Individual
Current assignee: Individual
Priority date: 2013-01-17
Filing date: 2013-01-17
Publication date: 2013-07-10
Anticipated expiration: 2023-01-17

Abstract

Provided is an energy-saving type tower type oil pumping machine. The energy-saving type tower type oil pumping machine comprises a base, supports, an upper platform, a weight box, an oil pumping rod, a small chain wheel, a big chain wheel, a motor, a driving wheel, a driving shaft, a bearing support, an electronic control cabinet, a square cone and a sensor. The energy-saving type tower type oil pumping machine is characterized in that a small gear fixed on the driving shaft is meshed with a big gear installed on the bearing support, an energy-saving pendulum is fixed on the big gear, and therefore an energy-saving device is formed. The weight (W) of the energy-saving pendulum is equal to Rit oil/ 2Hsin phi, wherein R is the radius of the driving wheel, i is a transmission ratio between the small gear and the big gear, t oil is the weight of an oil column in an oil pumping pipe, H is the distance from the gravity center of the energy-saving pendulum to the gyration center of the energy-saving pendulum, and phi is the pendulum angle of the energy-saving pendulum. According to the energy-saving type tower type oil pumping machine, anti-clockwise torsion generated from the oil pumping rod and the oil column is equal to clockwise torsion generated from the weight box plus clockwise torsion generated from the motor to the driving shaft plus clockwise torsion generated from the energy-saving pendulum to the driving shaft, and the motor can be started or braked in a non-loaded state, and therefore a complete machine can acquire maximum energy saving.

Description

Energy-saving tower shelf type oil pumping machine

Technical field

The utility model relates to extracting device of oil, relates generally to energy-saving tower shelf type oil pumping machine.

Technical background

The patent No. is that ZL200720147684.3 gearless transmission oil pumping machine and the patent No. are that 200410011020.5 oil pumping workover rigs etc. all belong to tower shelf type oil pumping machine at present, their common feature is to operate steadily, with conventional beam-pumping unit, to compare energy-saving effect better, but starting current and stalling current when its motor frequently commutates are larger, thereby affect significantly whole energy-saving effect, concerning tower shelf type oil pumping machine, load when sucker rod rises and descends is fully different, and their difference is larger, how to realize in this case larger energy-conservation be urgent problem.

Summary of the invention

The purpose of this utility model is to provide a kind of energy-saving tower shelf type oil pumping machine, solves because of the electric motor starting of oil pumper or the excessive large problem that consumes energy of electric current of braking.

For achieving the above object, the utility model provides a kind of energy-saving tower shelf type oil pumping machine, comprise base, support, upper mounting plate, ballast box, sucker rod, minor sprocket, hinge wheel, motor, driving wheel, driving shaft, bearing bracket stand, electrical control cubicles, square gear wheel, sensor, it is characterized in that: fixing pinion and the gear wheel phase interlock be arranged on bearing bracket stand on driving shaft, be fixed with energy-conservation pendulum on gear wheel, so just formed energy saver, the weight W of energy-conservation pendulum=R i t _oil /2Hsin Φ, wherein, the radius that R is driving wheel, i is the gearratio between pinion and gear wheel, t _oilfor the weight of the oil column in oil pick-up tube, the center of gravity that H is energy-conservation pendulum is to the energy-conservation distance turned between center that swings back, the pendulum angle that Φ is energy-conservation pendulum.

The clockwise moment of torsion that the clockwise moment of torsion that clockwise moment of torsion+motor that the counter clockwise direction moment of torsion that the utility model sucker rod and oil column produce=ballast box produces produces driving shaft+energy-conservation pendulum produces driving shaft, i.e. (t _bar+ t _oil) R=(t _bar+ t _oil/ 2) R+T _electricity+ (W H sin Φ)/i.The weight of sucker rod is t _bar, the weight of ballast box is (t _bar+ t _oil /2) moment of torsion that, motor produces on driving shaft is T _electricityif realize that motor is T in non-loaded lower starting or braking _electricity=0, it is energy-conservation that complete machine obtains maximum, namely (W H sin Φ)/i=Rt _oil/ 2, i.e. W=R i t _oil/ 2Hsin Φ, meet above-mentioned condition motor and just can start under no-load condition or brake, and same sucker rod start or just can obtain the energy-conservation of maximum while brake under high limit position.Concerning motor, bringing onto load starting or braking are started with bringing onto load not or the merit of braking its consumption differs greatly, and add its Fraquent start or braking, so its energy-saving effect clearly.Starting under this no-load condition or the energy-saving principle of braking are applicable to the oil pumper that motor commutates fully, thereby realize larger energy-conservation.

The accompanying drawing explanation

Fig. 1 is structural representation of the present utility model.

Fig. 2 is the lateral view of Fig. 1.

The specific embodiment

With reference to Fig. 1, Fig. 2, the utility model comprises base 2, support 3, upper mounting plate 10, counterweight 5, counterweight lifting rope 6, sucker rod 7, polished rod eye 9, minor sprocket 12, hinge wheel 16, motor 11, chain 13, sucker rod lifting rope 19, driving wheel 17, driving shaft 18, bearing bracket stand 21, electrical control cubicles 1, side's gear wheel 20, sensor 22, it is characterized in that: fixing pinion 15 and the gear wheel phase interlock be arranged on bearing bracket stand 21 on driving shaft 18, energy-conservation pendulum 8 is fixed on gear wheel 14, so just formed energy saver, the weight of energy-conservation pendulum is W, the center of gravity of energy-conservation pendulum is H to the energy-conservation distance turned between center that swings back, the radius of driving wheel is R, the weight of sucker rod is t _bar, the weight of the oil column in oil pick-up tube is t _oil, the weight of ballast box is (t _bar+ t _oil /2), the pendulum angle of energy-conservation pendulum is ± Φ that the gearratio between pinion 15 and gear wheel 14 is that the moment of torsion that the i motor produces on driving shaft 18 is T _electricity, when ± Φ be equal to or less than ± 90 °, when sucker rod starts to rise in the lowest limit position, the equilibrium relation of the moment of torsion on driving wheel both sides is as follows:

The clockwise moment of torsion that the clockwise moment of torsion that clockwise moment of torsion+motor that the counter clockwise direction moment of torsion that sucker rod and oil column produce=ballast box produces produces driving shaft+energy-conservation pendulum produces driving shaft, i.e. (t _bar+ t _oil) R=(t _bar+ t _oil/ 2) R+T _electricity+ (W H sin Φ)/i.

If realize that complete machine starts or brakes T under without the power consumption state _electricity=0 (W H sin Φ)/i=Rt so _oil/ 2.

W=R i t _oil/ 2Hsin Φ, meet above-mentioned condition complete machine and just can start or braking under without the power consumption state, and at this moment complete machine obtains maximum energy-conservation.

Same sucker rod start or meets above-mentioned condition while brake and just can obtain the energy-conservation of maximum under high limit position.

Claims

1. an energy-saving tower shelf type oil pumping machine, comprise base, support, upper mounting plate, ballast box, sucker rod, minor sprocket, hinge wheel, motor, driving wheel, driving shaft, bearing bracket stand, electrical control cubicles, square gear wheel, sensor, it is characterized in that: fixing pinion and the gear wheel phase interlock be arranged on bearing bracket stand on driving shaft, be fixed with energy-conservation pendulum on gear wheel, so just formed energy saver, the weight W of energy-conservation pendulum=R i t _oil /2Hsin Φ, wherein, the radius that R is driving wheel, i is the gearratio between pinion and gear wheel, t _oilfor the weight of the oil column in oil pick-up tube, the center of gravity that H is energy-conservation pendulum is to the energy-conservation distance turned between center that swings back, the pendulum angle that Φ is energy-conservation pendulum.