CN2352672Y

CN2352672Y - High efficiency oil pumping machine

Info

Publication number: CN2352672Y
Application number: CN 98240913
Authority: CN
Inventors: 周世海
Original assignee: Individual
Current assignee: Individual
Priority date: 1998-09-23
Filing date: 1998-09-23
Publication date: 1999-12-08
Anticipated expiration: 2008-09-23

Abstract

The utility model relates to an efficient energy saving beam pumping unit, which is composed of a drive transmission apparatus, a walking beam, a horse head, a bracket, a crank, a big connecting rod, a triangle support arm, a small connecting rod, and a pendulum rod, wherein, the middle part of the walking beam is hinged on a bearing seat of a bracket; a steel cable is arranged on the horse head; the crank is connected with the upper side of an output shaft of the driving device; the tail end of the walking beam is hinged with the triangle support arm which is hinged with cross beams which are arranged at the upper end of the small connecting rod and the big connecting rod; the other end of the small connecting rod is hinged with a bearing seat of a bracket; the lower end of the big connecting rod is hinged with the pendulum rod; the other end of the pendulum rod is hinged on a pin axle 16; a crank rolling wheel is arranged in a pendulum rod groove. The utility model has the advantages that the stroke of the steel cable is increased, and the power of a motor (namely, efficient energy saving) is reduced.

Description

Energy-efficient oil pumper

The utility model relates to a kind of energy-efficient oil pumper, the usefulness of main fuel feeding field oil recovery.

Prior art is seen Fig. 3.The output shaft 23 of drive transmission (containing motor 20, belt transmission secondary 21 and reduction box 22) reduction box drives crank 24 and rotates, and balance weight 25 is arranged on the crank.Connecting rod 26 lower ends and crank are hinged, and upper end and walking beam 27 tail ends are hinged, and the walking beam middle part is articulated on the bearing pin 29 of support 28, and the walking beam front end has horse head 30.During use, drive transmission drives crank and rotates around output shaft 23, and the front and back end that drives walking beams by connecting rod 26 is respectively around the axis swing of bearing pin 29, and the wire rope 31 on the horse head is with the crude oil extraction in the oil well.The deficiencies in the prior art part is: need to be equipped with more powerful motor and than great torque reducer box, thereby energy consumption and cost of equipment are bigger; Walking beam swings up and down that angle is little, and the wire rope stroke falls short of, so its oil recovery efficiency is lower.

The purpose of this utility model is to overcome above-mentioned weak point of the prior art and provides a kind of energy consumption to hang down and can increase the energy-efficient oil pumper of journey.

The purpose of this utility model can reach by following measure: the utility model is by drive transmission, walking beam, horse head, support, crank, big connecting rod, the triangle support arm, small rod and fork are formed, the walking beam middle part is articulated on the rack shaft holder, wire rope is arranged on the horse head, be connected with crank on the output shaft of drive transmission, crank end in addition has balance weight, beam travelling tail end is hinged with the triangle support arm, the triangle support arm also with small rod and big connecting rod on end floor beam hinged, small rod end in addition is hinged with rack shaft holder, big connecting rod lower end and fork are hinged, fork in addition end is articulated on the bearing pin 16, the crank roller fork groove of packing into.

The fork tail end has counterweight.

The drawing of accompanying drawing is described as follows:

Fig. 1 is total figure of the present utility model;

Fig. 2 is the diagrammatic top view of Fig. 1;

Fig. 3 is total figure of prior art.

The representative of accompanying drawing piece number:

1, bearing support 2, bearing pin 3, small rod 4, triangle support arm 5, bearing pin

6, bearing pin 7, bearing pin 8, crossbeam 9, big connecting rod 10, crank

11, circular arc 12, circular arc 13, bearing pin 14, hinge 15, fork

16, bearing pin 17, counterweight 18, oblong slots 19, crank roller 20, motor

21, belt transmission pair 22, reduction box 23, output shaft 24, crank 25, balance iron

26, connecting rod 27, walking beam 28, support 29, bearing pin 30, horse head

31, wire rope

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

Fig. 1 and Fig. 2 represent general structure of the present utility model.Walking beam 27 middle parts are articulated on the bearing pin 13 of support 28 top chocks 1, increase bearing pin 2 on the bearing support 1, and small rod 3 is articulated on the bearing pin 2 with bearing support 1.The end in addition of small rod is articulated on the bearing pin 5 of triangle support arm 4, and hinged at the bearing pin 6 of beam travelling tail end top and triangle support arm, crossbeam 8 is hinged with the bearing pin 7 of triangle support arm.The crossbeam two ends respectively are connected with a big connecting rod 9, and big connecting rod lower end and fork 15 tail ends are hinged.

During use, drive transmission drives crank 10 and rotates around output shaft 23 centers, be circular arc 11 swings on the big connecting rod lower end edge figure, big connecting rod upper end (bearing pin 7 that contains the triangle support arm) answers lifting to bigger position, but be subjected to the tractive of small rod 3 because of triangle support arm bearing pin 5, can only be along circular arc 12 liftings, thus the pivot angle of triangle support arm upper pin 6 increased around 1 center 13 of bearing support, promptly increased the pivot angle of horse head 30 and the path increment of wire rope.If when still keeping original stroke, promptly reduce the distance of big connecting rod lower end to the output shaft center, can reduce output torque and motor-driven power.

Bearing pin 16 is fixing, and an end of fork 15 is articulated on the bearing pin 16, and fork end in addition is articulated on the hinge 14 with big connecting rod 9 lower ends.There is oblong slots 18 at the fork middle part, and crank 10 1 ends are fixedlyed connected with the output shaft 23 of reduction box, and crank end in addition is connected with crank roller 19 and balance weight 25., the crank roller is packed in the oblong slots, and with the dragging track of oblong slots as the crank roller.The fork tail end has counterweight 17, can reduce the savings energy of steel wire no-load speed and increase up stroke.

During use, drive transmission device drives crank 10 and rotates around output shaft 23 centers, crank roller 19 drives fork 15 and swings up and down around bearing pin 16, crank roller 19 is made straight-line rolling along fork oblong slots 18, fork end hinge 14 drives big connecting rod and swings up and down, like this, just can reach the purpose that cuts down the consumption of energy.Its reason is as follows:

1, load acts on by wire rope 31, horse head 30, walking beam 27, big connecting rod 9 on the hinge 14 of fork 15, and this power forms a moment (being called load moment) to the axle center of bearing pin 16, and the arm of force length of this moment is constant.The power of motor 20 acts on the fork 15 by output shaft 23, crank 10, the crank roller 19 of belt, reductor, and this power forms a moment (being called kinetic moment) to bearing pin 16, and its arm of force length changes.During upstroke (impulse stroke), crank roller 19 rolls in the output shaft left of center, and the arm of force of kinetic moment is long, thereby laborsaving.

2, during down stroke (idle stroke), longer than the arm of force (distances in distance of centre of gravity bearing pin 16 axle center of balance weight 25) of balance weight 25 and counterweight 17 moments because of the arm of force of load moment, so the quality of the balance weight that load is mentioned is big, energy accumulation is many, the energy that discharges during upstroke is also many, so energy consumption is low.

3, during down stroke (idle stroke), fork 15 also by on carry, accumulated energy, discharge during upstroke (impulse stroke), the power that motor is needed reduces.

The utility model contrast prior art has and cuts down the consumption of energy 50% and improve the advantage of oil recovery efficiency.

Claims

1, a kind of energy-efficient oil pumper, comprise drive transmission device, crank, walking beam, horse head and support, the walking beam middle part is articulated on the support shaft, wire rope is arranged on the horse head, be connected with crank on the output shaft of drive transmission, it is characterized in that, also comprise big connecting rod, triangle support arm, small rod and fork, beam travelling tail end is hinged with the triangle support arm, the triangle support arm also with small rod and big connecting rod on end floor beam hinged, small rod in addition end is hinged with rack shaft holder, big connecting rod lower end and fork are hinged, fork in addition end is articulated on the bearing pin (16), the crank roller fork groove of packing into.

2, energy-efficient oil pumper according to claim 1 is characterized in that, the fork tail end has counterweight.