CN201433745Y

CN201433745Y - Wheeled oil pumping unit

Info

Publication number: CN201433745Y
Application number: CN2009200933215U
Authority: CN
Inventors: 金成群; 洪正录
Original assignee: Individual
Current assignee: Individual
Priority date: 2009-04-01
Filing date: 2009-04-01
Publication date: 2010-03-31
Anticipated expiration: 2019-04-01

Abstract

A wheeled oil pumping unit comprises a bearing frame, a base, a pumping rod, a pumping rod hauling rope, a counterbalance, a counterbalance hauling rope, a driving wheel, a driving wheel frame, a power device and an electrical control device. The wheeled oil pumping unit is characterized in that a pull wheel is mounted at the top end of the bearing frame, the bottom part of the bearing frame is mounted on the base which is connected with the driving wheel frame via a hinge axis, the driving wheel is mounted on the driving wheel frame, the pumping rod is connected to one side of the pull wheelcircumference while the counterbalance is connected to the other side thereof, the middle of the driving cord is fixed on the driving wheel, and the two ends of the driving cord are wound on the driving wheel in reverse directions and are respectively connected to the two sides of the pull wheel circumference. Under the control of the electrical control device, an electric motor of the utility model replaces a four- link reverse mechanism of the walking beam type oil pumping unit in a manner of reverse of direction as per the program, and the pumping rod and the counterbalance are respectivelyhung on two sides of the pull wheel to realize the static balancing, therefore, the oil pumping unit has high balancing precision and reversing efficiency, small reversing impact, and easy adjustmentof stroke and stroke frequency.

Description

Wheel type oil pumping unit

Technical field

The present invention relates to extracting device of oil, especially relate to a kind of wheel type oil pumping unit.

Background technology

Present oil field beam pumping unit such as CYJ type oil pumper commonly used, the complete mechanical switching mechanism of its commutation by quadric chain, the efficient that commutates is low, reversing impact big, transfer the stroke difficulty, and balancing is also difficult.

Summary of the invention

Technical problem to be solved by this invention provides a kind of motor under the control of electric control gear, the four connecting rod changements that replace beam pumping unit according to the mode of the positive and negative commutation of program, and the mode that sucker rod and counterweight are hung in the head sheave both sides realizes static balancing, so this machine balance quality height, commutation efficient height, reversing impact is little, transfers stroke, jig frequency easy.

For solving the problems of the technologies described above, the invention provides a kind of wheel type oil pumping unit, comprise bearing support, base, sucker rod, the beam hanger pull rope, counterweight, the counterweight pull rope, driving wheel, drive wheel carrier, power set, electric control gear, it is characterized in that: the bearing support top is equipped with head sheave, the bearing support bottom is installed on the base, connect the driving wheel carrier by hinge axis on the base, driving wheel is installed in and drives on the wheel carrier, sucker rod is connected to a side in head sheave wheel week, counterweight is connected to the opposite side in head sheave wheel week, drive the rope center fixed on driving wheel, drive the both sides that the rope two ends are wound in driving wheel in the opposite direction and are connected to head sheave wheel week separately.

Motor of the present invention is under the control of electric control gear, the four connecting rod changements that replace beam pumping unit according to the mode of the positive and negative commutation of program, and the mode that sucker rod and counterweight are hung in the head sheave both sides realizes static balancing, so this machine balance quality height, commutation efficient height, reversing impact is little, transfers stroke, jig frequency easy.

Description of drawings:

Fig. 1 is the structural representation of first embodiment of the invention;

Fig. 2 is the left view of Fig. 1;

Fig. 3 is a second embodiment of the present invention structural representation;

Fig. 4 is the left view of Fig. 3.

The specific embodiment

Embodiment 1

With reference to Fig. 1, Fig. 2, the present invention includes base 1, hinge axis 2, drive wheel carrier 3, brake 4, small belt pulley 5, motor 6, sucker rod 7, polished rod eye 8, belt 9, beam hanger pull rope 10, drive rope 11, bearing support 12, it wheel shaft 13, little counterweight 14, head sheave 15, locator 16, counterweight pull rope 17, counterweight 18, driving wheel 19, big belt pulley 20, live axle 21, electrical control cubicles 22, encoder 23, head sheave 15 is installed on the bearing support 12 by sky wheel shaft 13, bearing support 12 is installed in again on the base 1, driving wheel 19 is installed in by live axle 21 and drives on the wheel carrier 3, driving wheel carrier 3 is installed on the base 1 by hinge axis 2, sucker rod 7 is linked the side that head sheave 15 is taken turns week by polished rod eye 8 and beam hanger pull rope 10, and counterweight 18 is connected to the opposite side that head sheave 15 is taken turns week by counterweight pull rope 17, the center fixed that drives rope 11 is on driving wheel 19, and take turns on the both sides in week according to linking head sheave 15 behind several circles of rightabout winding driving wheel respectively at the two ends of driving rope 11.When the driving rope was belt, then the belt two ends were connected in respectively on the both sides in head sheave wheel week, drive belt transmission with driving wheel then.

Power set comprise that motor 6, small belt pulley 5, big belt pulley 20, belt 9, motor 6 are installed on the driving wheel carrier 3, small belt pulley 5 is installed on the motor output shaft, big belt pulley 20 is installed on the live axle 21, and belt 9 connects small belt pulley 5 and big belt pulley 20.

Electric control gear adopts the form of electrical control cubicles 22, and it links to each other with encoder 23 and locator 16 with motor 6.

Because driving wheel carrier 3 is connected on the base 1 by hinge axis 2, therefore regulate the tensile force that drives rope 11 by the weight size at driving wheel 19 positions, it is simple in structure, reliable, and regulates tensile force by the machine own wt, works the reversing impact effect of eliminating complete machine simultaneously.

Little counterweight 14 is installed in the inboard of head sheave 15, and it produces different moment in the locus difference to head sheave 15, thereby reduces the reversing impact and the current of commutation greatly, produces big energy-saving effect.

Generally speaking, this machine simplified widely complex machines structure, greatly reduce the machine manufacturing cost, and manufacturing process is also simple, bring simultaneously energy-conservation greatly, save the effect of steel greatly, and it is easy to regulate every technical data, use simple, convenient, with the remote controller adjusting, therefore safe especially fully.

Embodiment 2

With reference to Fig. 3, Fig. 4, embodiment 2 is with embodiment 1 difference: counterweight 18 is fixed on the head sheave 15 by rocking arm among the embodiment 2, does not therefore have counterweight pull rope 17 and little counterweight 14, and other and embodiment 1 are identical.

Claims

1, a kind of wheel type oil pumping unit, comprise bearing support, base, sucker rod, the beam hanger pull rope, counterweight, the counterweight pull rope, driving wheel, drive wheel carrier, power set, electric control gear, it is characterized in that: the bearing support top is equipped with head sheave, the bearing support bottom is installed on the base, connect the driving wheel carrier by hinge axis on the base, driving wheel is installed in and drives on the wheel carrier, sucker rod is connected to a side in head sheave wheel week, counterweight is connected to the opposite side in head sheave wheel week, drive the rope center fixed on driving wheel, drive the both sides that the rope two ends are wound in driving wheel in the opposite direction and are connected to head sheave wheel week separately.