CN201943671U

CN201943671U - Flexible transmission evolvent type oil pumping machine

Info

Publication number: CN201943671U
Application number: CN2011200847575U
Authority: CN
Inventors: 梁宏宝; 陈颖; 赵玲; 李冰; 杨丽波; 孙旭东; 孟庆伟
Original assignee: Northeast Petroleum University
Current assignee: Northeast Petroleum University
Priority date: 2011-03-28
Filing date: 2011-03-28
Publication date: 2011-08-24
Anticipated expiration: 2021-03-28

Abstract

The utility model discloses a flexible transmission evolvent type oil pumping machine, comprising a motor, a decelerator, double cranks, a balance block, a roll cylinder and a flexible oil pumping rope, wherein the motor of the oil pumping machine runs to drive the decelerator to rotate, so as to drive a first crank and a second crank to rotate synchronously; the first and the second cranks rotate to drag a first and a second flexible oil pumping ropes, so as to drag a first and a second evolvent rolls to reciprocate around a first support shaft within a certain angle; the first support shaft reciprocates within a certain angle to drive a first roller to reciprocate synchronously and to drag a third and a fourth flexible oil pumping ropes simultaneously, and finally to drag an oil pumping pump fixedly connected with a sixth flexible oil pumping rope to reciprocate through a rope hanger, so as to drive the oil pumping pump to run. As the flexible transmission evolvent type oil pumping machine uses an evolvent roller structure, so that the power performance of the whole machine is improved; by using a compound balance way, constant power is realized, and the power saving rate reaches over 45%.

Description

Flexible transmission involute formula oil pumper

Technical field

The utility model relates to used lifting device in the oil recovery field, oil field, relates to a kind of oil pumper specifically.

Background technology

Pumping production accounts for more than 90% of China's field produces machine-pumped oil well.The subject matter that exists in the beam pumping unit oil recovery process is that the energy transmission link is many, system effectiveness is low, volume is big, energy consumption is big, the iron and steel cement consumption is big at present.Its main cause is that the power transmission link is many, motor power output and the reducer torque ripple is big, function singleness, size and deadweight are bigger, thereby needs heavy-duty motor, the energy consumption height, and pay(useful) load is low.

Summary of the invention

The purpose of this utility model is at the problem that exists in the background technology, a kind of new pumping unit is provided, this oil pumper operates steadily, simple in structure, reduced the energy transmission link, motor power output and reducer torque ripple have been reduced, and can realize power of motor permanent on the occasion of, energy-efficient.

In order to realize the foregoing invention purpose, the technical scheme that the application adopts is: flexible transmission involute formula oil pumper comprises bed frame system, power drive system, balance sysmte, exchange system, wherein the bed frame system, comprise frame, reducer base and motor, frame base; Described dynamical system comprises motor, reducer and first, second crank, and wherein the output axle key of reducer connects first, second symmetrical crank; Described balance sysmte comprises first, second balance weight and the 3rd balance weight that are installed in respectively on first, second crank; Described exchange system comprises cylinder mechanism, directive wheel and flexible oil pumping rope, cylinder mechanism wherein, comprise that first circle rolls and is symmetrical in first round first, second involute that rolls and rolls, on the periphery that first circle rolls, uniform three circuit orbits, the circumferentially track of operation of an edge is set on the side face that first, second involute rolls, and first circle rolls and two involutes roll equal key and are connected on first back shaft, and the two ends of first back shaft are provided with heavily loaded roller bearing and are fixed on the frame; Directive wheel wherein comprises that two second circles roll, and on the periphery that each second circle rolls a circuit orbit is set, and two second circles roll heavily loaded roller bearing and are connected on second back shaft; The second back shaft two ends are fixed on outstanding on the tilted supporter on frame right side; The total six roots of sensation of described flexible oil pumping rope, be respectively the first, second, third, fourth, the 5th, the 6th flexible oil pumping rope, wherein an end of first, second flexible oil pumping rope is hinged on first, second crank, and the other end is separately fixed at the end that first, second involute rolls; Three, an end of the 4th flexible oil pumping rope is wrapped in that first circle rolls on the track of both sides and is fixing, and two second circles of the other end by directive wheel roll and are connected on the polished rod eye; One end of the 5th flexible oil pumping rope is fixed on the 3rd balance weight, and the other end is wrapped on the first round intermediate orbit that rolls also fixing, and the end that the 6th flexible oil pumping is restricted is connected on the polished rod eye, and the other end is connected with the oil well pump of down-hole.

The beneficial effects of the utility model are: because this flexibility transmission involute formula oil pumper has adopted the involute roller structure, improved the power performance of complete machine; Adopt the plural equilibrium mode, realized permanent positive; Adopt direct balance, can reduce 30 ~ 40% to polished rod load, greatly reduced the suspension point moment of torsion, the maximal rate of suspension point and the peak value of acceleration decline to a great extent, and maximum polished rod load reduces, and load fluctuation diminishes, compare with conventional pumping unit, the reduction box moment of torsion can descend more than 45%, and the motor installed power descends more than 40%, and power saving rate has reached more than 45%.

Description of drawings

Fig. 1 is the structural representation of the flexible transmission involute of the utility model formula oil pumper.

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

Fig. 3 is the vertical view of cylinder mechanism.

Fig. 4 is the power of motor curve map of the application's oil pumper.

Among the figure: frame-1, reducer base-2, motor, frame base-3, motor-4, reducer-5, the first crank-6, second crank-6 ', first balance weight-7, the second balance weight-7 ', the 3rd balance weight-8, cylinder mechanism-9, directive wheel-10, the first circle rolls-11, first involute rolls-12, second involute rolls-12 ', first back shaft-13, the second back shaft-14, the first flexible oil pumping rope-15, the second flexible oil pumping rope-15 ', the 3rd flexible oil pumping rope the-16, the 4th flexible oil pumping rope-16 ', polished rod eye-17, the 5th flexible oil pumping rope the-18, the 6th flexible oil pumping rope-19.

The specific embodiment

The utility model is described in further detail below in conjunction with accompanying drawing:

In conjunction with shown in Figure 2, this flexibility transmission involute formula oil pumper comprises bed frame system, power drive system, balance sysmte, exchange system by Fig. 1, and wherein the bed frame system comprises frame 1, reducer base 2 and motor, frame base 3; Described dynamical system comprises motor 4, reducer 5 and first, second crank 6,6 ', and wherein the output axle key of reducer 4 connects first, second symmetrical crank 6,6 '; Described balance sysmte comprises first, second balance weight 7, the 7 ' and the 3rd balance weight 8 that are installed in respectively on first, second crank 6,6 '; Described exchange system comprises cylinder mechanism 9, directive wheel 10 and flexible oil pumping rope, wherein cylinder mechanism 9, comprise that first circle rolls 11 and be symmetrical in first first, second involute of rolling of circle and roll 12,12 ', as shown in Figure 3: roll on 11 the periphery at first circle, uniform three circuit orbits, roll at first, second involute on 12,12 ' the side face the circumferentially track of operation of an edge is set, first circle rolls 11 and two involutes and rolls equal key and be connected on first back shaft 13, and the two ends of first back shaft 13 are provided with heavily loaded roller bearing and are fixed on the frame 1; Described directive wheel 10 comprises that two second circles roll, and on the periphery that each second circle rolls a circuit orbit is set, and two second circles roll heavily loaded roller bearing and are connected on second back shaft 14; Second back shaft, 14 two ends are fixed on the tilted supporter on frame 1 right side; The total six roots of sensation of described flexible oil pumping rope, be respectively the first, second, third, fourth, the 5th, the 6th flexible oil pumping rope, wherein end of first, second flexible oil pumping rope 15,15 ' is hinged on first, second crank 6,6 ', and the other end is separately fixed at first, second involute and rolls 12,12 ' end; Three, an end of the 4th flexible oil pumping rope 16,16 ' is wrapped in that first circle rolls on the track of 11 both sides and is fixing, and two second circles of the other end by directive wheel 10 roll and are connected on the polished rod eye 17; One end of the 5th flexible oil pumping rope 18 is fixed on the 3rd balance weight 8, and the other end is wrapped in that first circle rolls on 11 the intermediate orbit and is fixing, and an end of the 6th flexible oil pumping rope 19 is connected on the polished rod eye 17, and the other end is connected with the oil well pump of down-hole.

The process of the application's pumping production is: motor rotates and drives the reducer rotation, further drives first, second crank and rotates synchronously; First, second flexible oil pumping rope of first, second crank rotation traction, and then draw first, second involute and roll around the back and forth rolling in the certain angle scope of first back shaft; First back shaft back and forth rotates in certain angle, drive first circle and roll synchronously back and forth rotation, draw the 3rd, the 4th flexible oil pumping rope simultaneously, finally move back and forth by the affixed oil well pump of polished rod eye traction and the 6th flexible oil pumping rope, make oil well pump work, regulate the balance of whole system in the reciprocating motion process by first, second, third balance weight.

As shown in Figure 4, the band cross wires from figure as can be seen, power curve illustrated that the motor perseverance does positive work, and curve ratio is more steady, has reduced power of motor consumption, has reached energy-efficient purpose all more than zero line.

Claims

1. flexible transmission involute formula oil pumper comprises bed frame system, power drive system, balance sysmte, exchange system, and described bed frame system comprises frame, reducer base and motor, frame base; Described dynamical system comprises motor, reducer and first, second crank, it is characterized in that: the output axle key of reducer connects first, second symmetrical crank; Described balance sysmte comprises first, second balance weight and the 3rd balance weight that are installed in respectively on first, second crank; Described exchange system comprises cylinder mechanism, directive wheel and flexible oil pumping rope, cylinder mechanism wherein, comprise that first circle rolls and is symmetrical in first round first, second involute that rolls and rolls, on the periphery that first circle rolls, uniform three circuit orbits, the circumferentially track of operation of an edge is set on the side face that first, second involute rolls, and first circle rolls and two involutes roll equal key and are connected on first back shaft, and the two ends of first back shaft are provided with heavily loaded roller bearing and are fixed on the frame; Directive wheel wherein comprises that two second circles roll, and on the periphery that each second circle rolls a circuit orbit is set, and two second circles roll heavily loaded roller bearing and are connected on second back shaft; The second back shaft two ends are fixed on outstanding on the tilted supporter on frame right side; The total six roots of sensation of described flexible oil pumping rope, be respectively the first, second, third, fourth, the 5th, the 6th flexible oil pumping rope, wherein an end of first, second flexible oil pumping rope is hinged on first, second crank, and the other end is separately fixed at the end that first, second involute rolls; Three, an end of the 4th flexible oil pumping rope is wrapped in that first circle rolls on the track of both sides and is fixing, and two second circles of the other end by directive wheel roll and are connected on the polished rod eye; One end of the 5th flexible oil pumping rope is fixed on the 3rd balance weight, and the other end is wrapped on the first round intermediate orbit that rolls also fixing, and the end that the 6th flexible oil pumping is restricted is connected on the polished rod eye, and the other end is connected with the oil well pump of down-hole.