CN206617142U - A kind of moving balance walking beam sucking machine - Google Patents

Abstract

The utility model discloses a kind of moving balance walking beam sucking machine, including asynchronous machine, support, horse head, walking beam, shifting balance device, connecting rod, decelerator, counterweight block, crank and base.It is poor for the conventional beam pumping unit counterbalance effect of solution, the problem of crank axle net moment of torsion peak change is big, shifting balance device is installed to walking beam, shifting balance device is made up of dual-axle motor, crank, connecting rod, sliding block, dual-axle motor is fixed on center bearing seat and puts top, and crank is installed at motor output shaft two ends, and crank uses pin shaft joint connecting rod, connecting rod tail end installs sliding block, and sliding block lower end sets roller.Walking beam cross section is I-shaped, and sliding block is arranged in walking beam slideway, moved along walking beam length direction as reciprocating linear into slideway by marginal position both sides weld side plate shape, so as to realize the dynamic complex balance of oil pumper.The utility model is simple in construction, reasonable in design, and security and stability is high, applied widely, can dynamically adjust the trimming moment of oil pumper, reach energy-saving purpose.

Description

A kind of moving balance walking beam sucking machine

Technical field

The utility model is related to technical field of petroleum extraction, belongs to oil recovery machiner equipment, particularly a kind of shifting balance trip Girder-like oil pump.

Background technology

For a long time, conventional beam pumping unit is always important oil exploration equipment, and beam pumping unit has Simple in construction, safe and reliable advantage, but inefficiency and energy consumption is higher.In one complete stroke cycle, upstroke is carried Lotus is much larger than down stroke, and polished rod load is continually changing to form load difference, cause the change of oil pumping machine crank axle net moment of torsion amplitude compared with Greatly, the service life and motor operation efficiency of decelerator be directly affects.Therefore improving balance of well pumping unit rate becomes energy-conservation It is crucial.In order to overcome the shortcoming of conventional beam-pumping unit, CN201420765751.8, CN201320762209.2, CN201320726180.2, CN201420864371.X etc. propose to install lead screw guide rails and shifting balance weight, motor on walking beam Leading screw rotation is driven, balance weight is moved on walking beam, by the position for turning to adjustment weight of controlled motor, balance is reached The purpose of torque.The leading screw accuracy of manufacture requires higher, and large-scale oil pumper requires that leading screw length reaches certain standard, and therefore, it is difficult to full The foot processing request.In addition CN201620884807.0, CN201220223433.X, CN201320383095.0 etc. propose taking out Oil machine walking beam afterbody installs balance regulator, i.e., the lead screw guide rails with balance weight are installed on tail boom, pass through leading screw rotating band The heavy balance to adjust walking beam on pumping units of dynamic balancing.This scheme increases the load of leading screw, and the design of tail boom makes structure tend to be multiple It is miscellaneous, there is certain potential safety hazard.Therefore, the utility model spy proposes a kind of moving balance walking beam sucking machine.

Utility model content

The purpose of this utility model is to solve the problem of beam pumping unit presently, there are, for existing balance scheme It is not enough that there is provided a kind of moving balance walking beam sucking machine.

In order to achieve the above object, the technical solution of the utility model is as follows.

A kind of moving balance walking beam sucking machine includes asynchronous machine, support, horse head, walking beam, shifting balance device, company Bar, decelerator, counterweight block, crank, base, wherein shifting balance device by dual-axle motor, left crank, left connecting rod, left slider, Right crank, right connecting rod, right sliding block composition.

Dual-axle motor is fixedly mounted on center bearing seat and puts top, and the output shaft of dual-axle motor installs left and right crank, bent Handle, in order to reduce frictional resistance, is installed by the left and right connecting rod of pin shaft joint, connecting rod tail end pin shaft joint sliding block in sliding block lower end Roller.

The cross section of walking beam is in I-shaped, and marginal position both sides, which are welded and fixed inside side plate, walking beam, stays sufficient space to be formed Double slideways, sliding block is arranged in slideway.

Oil pumping machine crank drives counterweight block to move downward acting during upstroke, while dual-axle motor drives left and right crank Rotation so that left and right connecting rod promotes two sliding blocks to be moved along a straight line towards walking beam right-hand member, helps asynchronous machine lifting load, during down stroke Two sliding blocks are moved along a straight line towards walking beam left end, and such sliding block is moved back and forth in walking beam slideway, by adjusting slider in the position of walking beam Put dynamic equilibrium oil pumper load moment.

The utility model has the advantage of：1., being capable of dynamic equilibrium load compared with current conventional beam-pumping unit Torque, effectively reduction crank axle net moment of torsion peak value, improve balance of well pumping unit rate, extend the shelf life of decelerator and motor. 2. compared with current lead screw guide rails balanced oil extractor, oil pumper it is more efficient, security is more preferable.3. it is simple in construction, install It is convenient, it is adaptable to the beam pumping unit of different model.

Brief description of the drawings

Fig. 1 is general structure schematic diagram of the present utility model.

Fig. 2 is shifting balance apparatus structure schematic diagram.

Fig. 3 is shifting balance apparatus structure schematic diagram left view.

In figure：1- asynchronous machines, 2- supports, 3- horse heads, 4- walking beams, 5- dual-axle motors, the left cranks of 6-, 7- left connecting rods, 8- Left slider, 9- connecting rods, 10- decelerators, 11- counterweight blocks, 12- cranks, 13- bases, the right cranks of 14-, 15- right connecting rods, 16- is right Sliding block.

Embodiment

Specific embodiment of the present utility model is described in further detail below in conjunction with the accompanying drawings.

As shown in Figure 1, Figure 2, Figure 3 shows, a kind of moving balance walking beam sucking machine of the utility model includes asynchronous machine 1, branch Frame 2, horse head 3, walking beam 4, dual-axle motor 5, left crank 6, left connecting rod 7, left slider 8, connecting rod 9, decelerator 10, counterweight block 11, Crank 12, base 13, right crank 14, right connecting rod 15, right sliding block 16, wherein by dual-axle motor 5, left crank 6, left connecting rod 7, left cunning Block 8, right crank 14, right connecting rod 15, the composition shifting balance device of right sliding block 16.

Dual-axle motor 5 is fixedly mounted on above the bearing block position of walking beam 4, and the output shaft of dual-axle motor 5 is respectively mounted left song Handle 6 and right crank 14, double-crank are parallel to each other in the longitudinal surface of walking beam 4.Left crank 6 is using pin shaft joint left connecting rod 7, left connecting rod 7 Tail end pin shaft joint left slider 8, in order to reduce frictional resistance, roller is installed in the lower end of left slider 8.Similarly right crank 14 uses phase With pin shaft joint right connecting rod 15, the right sliding block 16 of the tail end pin shaft joint of right connecting rod 15, roller is installed in the right lower end of sliding block 16.

The cross section of walking beam 4 is in I-shaped, and marginal position both sides are welded and fixed side plate, and mainly anti-limited slip block departs from trip to side plate Beam causes security incident.Sufficient space is left inside walking beam 4 and forms double slideways, sliding block is arranged in walking beam slideway.

The output shaft of decelerator 10 installs crank 12, and counterweight block 11 is fixed on crank 12, and crank 12 passes through pin shaft joint Connecting rod 9.When upstroke works, crank 12 turns clockwise, and counterweight block 11 moves downward acting, while dual-axle motor 5 drives Left crank 6 and right crank 14 rotate so that left connecting rod 7 and right connecting rod 15 make plane motion, promote left slider 8 and the court of right sliding block 16 The right-hand member of walking beam 4 moves along a straight line, and helps the lifting load of asynchronous machine 1.When sucker rod runs to top dead-centre, sliding block is moved to walking beam 4 Low order end, reaches trimming moment maximum.When down stroke works, left slider 8 and right sliding block 16 move along a straight line towards the left end of walking beam 4, When sucker rod reaches bottom dead centre, sliding block is moved near the installation site of dual-axle motor 5, reaches trimming moment minimum value.So Left and right sliding block（8、16）In the slideway of walking beam 4 move back and forth, by adjusting slider walking beam 4 position dynamic equilibrium oil pumper Load moment.According to the size of the left and right crank of the actual model change of oil pumper and connecting rod, the sliding block of selection appropriate mass is adapted to not The work requirements of same type machine.

Technical concept of the present utility model is the foregoing is only, protection domain of the present utility model is not limited with this.It is all Made any equivalent modifications and variations in spirit of the present utility model and principle, should all cover and be protected of the present utility model In the range of shield.

Claims (2)

1. a kind of moving balance walking beam sucking machine, by asynchronous machine（1）, support（2）, horse head（3）, walking beam（4）, dual-axle motor （5）, left crank（6）, left connecting rod（7）, left slider（8）, connecting rod（9）, decelerator（10）, counterweight block (11), crank (12), bottom Seat (13), right crank (14), right connecting rod (15), right sliding block (16) composition, it is characterised in that：By dual-axle motor (5), left crank (6), left connecting rod (7), left slider (8), right crank (14), right connecting rod (15), right sliding block (16) composition shifting balance device, twin shaft Motor（5）It is fixedly mounted on walking beam（4）Above bearing block position, dual-axle motor（5）Output shaft be respectively mounted left crank（6）With Right crank（14）, left crank（6）With right crank（14）Left connecting rod is coupled using bearing pin respectively（7）And right connecting rod（15）, connecting rod tail Hold pin shaft joint left slider（8）With right sliding block (16), roller is installed in sliding block lower end.

2. a kind of moving balance walking beam sucking machine according to claim 1, it is characterised in that：Walking beam（4）Cross section is in I-shaped, marginal position both sides are welded and fixed side plate, and side plate is used for anti-limited slip block（8、16）Depart from walking beam（4）Cause safe thing Therefore, walking beam（4）Leave sufficient space and form double slideways, sliding block in inside（8、16）In slideway.