CN201292825Y

CN201292825Y - Full-balance type hydraulic transmission oil pumping unit

Info

Publication number: CN201292825Y
Application number: CNU2008201313395U
Authority: CN
Inventors: 徐洪德; 王新愚
Original assignee: Individual
Current assignee: Individual
Priority date: 2008-07-30
Filing date: 2008-07-30
Publication date: 2009-08-19
Anticipated expiration: 2018-07-30

Abstract

The utility model relates to a full-balanced hydraulic driving oil-pumping unit comprising a bidirectional hydraulic device which comprises an oil cylinder, an oil pump, a hydraulic pipeline and an automatic reversing device, wherein the oil pump is connected with the oil cylinder by the hydraulic pipeline, and the automatic reversing device is fixedly connected with a piston rod; a traveling pulley block is fixedly arranged on the piston rod, and a pulley block frame and a machine frame are fixedly arranged on a base; a rope is connected with a balanced box arranged in the machine frame by a travelling pulley block in a pulley frame and a mediate fixed pulley; the balanced box is hollow and can be used for placing a balancing weight, and an oil-pumping rope is connected with the oil-pumping rod by an oil-pumping guide pulley on the machine frame. The full-balanced hydraulic driving oil-pumping unit adopts the hydraulic device as a power source and can do work in the motion process on the upper and the lower directions of the oil-pumping unit, and the power source is connected with a load by the pulley block, thereby the long stroke of the oil-pumping rod can be realized under the situation of the short stroke of the hydraulic device; and as the double-action is achieved, the oil-pumping unit can achieve the full balance of one to one, thereby the energy consumption can be greatly saved.

Description

Full-balance hydraulic transmission oil sucking machine

One, technical field

The utility model relates to the oil pumper of from deep-well recover petroleum or liquid, is a kind of full-balance hydraulic transmission oil sucking machine.

Two, background technology

Since the thirties, hydraulic technique develops and is applied to industrial every field rapidly.In recent years, hydraulic technique all had tangible ascendant trend in the application of pumping unit both at home and abroad.For example, on oil pumper, use hydraulic technique, realize long stroke, the low jig frequency of oil pumper easily, the complete machine weight and the floor space of oil pumper are all significantly reduced.

Notification number discloses a kind of hydraulic drive oil pumping machine for the CN2514171Y Chinese patent literature, it has realized the hydraulic jack reciprocating motion by hydraulic oil pump, 3-position 4-way solenoid operated directional valve, leading block, wire rope etc., drive leading block and carry out the lifting operation, tractive sucker rod back and forth operation oil pumping in pit shaft then.

Application number is that 2006100919651 patent application discloses a kind of machinery hydraulic drive oil pumping machine of control automatically, the applicant has done further improvement simultaneously on the basis of this patent, utilize mechanical commutation device to replace solenoid operated directional valve in the CN2514171Y Chinese patent, improved its operational reliability greatly.

But all there is following shortcoming in above-mentioned patent: the one, only utilized the up acting of hydraulic cylinder, and motor flogs a dead horse when descending; The 2nd, because hydraulic cylinder does not do work when descending, tandem-driving bogie just can't reach the full balance with sucker rod; The 3rd, obtain the long stroke of oil pumper by the length that increases hydraulic cylinder, make length of stroke be subjected to greatly limiting and bringing a lot of potential faults.

The utility model passes through to realize that the two-way work doing of hydraulic cylinder is to realize the full balance of tandem-driving bogie and sucker rod; Owing to realize the two-way work doing and the full bascule of hydraulic cylinder, under identical load power, as long as the motor of full-balance hydraulic transmission oil sucking machine configuration reaches a half-power of traditional oil pumper motor; Utilize the long stroke under the short hydraulic cylinder device of running block realization simultaneously.

Three, summary of the invention

The utility model provides a kind of full-balance hydraulic transmission oil sucking machine, has overcome the deficiency of above-mentioned prior art, and it passes through to realize that the two-way work doing of hydraulic cylinder is to realize the full balance of tandem-driving bogie and sucker rod.

The technical solution of the utility model realizes by following measure: a kind of full-balance hydraulic transmission oil sucking machine, comprise hydraulic means, this hydraulic means comprises oil cylinder, piston and hydraulic pump, the rodless cavity of oil cylinder and rod chamber are connected with hydraulic pump by fluid pressure line, fixed installation organic frame and assembly pulley framework on machinery bed; Tandem-driving bogie is arranged in machine frame, and the machine frame top above tandem-driving bogie is equipped with leading block and oil pumping leading block, and an end of oil pumping rope is fixedly mounted on the tandem-driving bogie, and the other end is connected with sucker rod by the oil pumping leading block; On machinery bed, vertically installing oil cylinder, be equipped with in piston tip and be no less than one group running block, this running block comprises up movable pulley and descending movable pulley, one end of up rope is fixed on the tandem-driving bogie, bottom at machine frame is equipped with leading block, and its other end is connected with the assembly pulley framework behind the leading block of up rope by the machine frame bottom and the up movable pulley; One end of descending rope is fixed on the tandem-driving bogie, on the top of machine frame leading block is installed also, and its other end is connected with the assembly pulley framework behind the leading block of descending rope by machine frame top and the descending movable pulley.

In above-mentioned machine frame guide rail is installed, tandem-driving bogie moves up and down along guide rail; Tandem-driving bogie hollow can built-in balance weight.

Above-mentioned hydraulic means can comprise the hydraulic pump of variable, motor-driven reversal valve, pilot operated directional control valve, flow speed control valve, hydraulic control one-way valve, Three-way rotary valve, oil cylinder, on turn over oil cylinder, the discharge capacity of the hydraulic pump output of variable is passed through pilot operated directional control valve, hydraulic control one-way valve, Three-way rotary valve, entering oil cylinder rodless cavity promotion piston rod stretches out, the hydraulic control one-way valve on the rod chamber loop is opened in the effect of system pressure, hydraulic oil is through pilot operated directional control valve, Three-way rotary valve, radiator, strainer is to fuel tank, stir motor-driven reversal valve machine handle commutation with the control link stopper on the Fill argon clamping fixture that the piston rod end is connected, control oil channel promotes the pilot operated directional control valve commutation, pressure oil enters cylinder rod chamber, piston rod descends, hydraulic control one-way valve on the rodless cavity loop is opened, the hydraulic oil oil sump tank has just been finished a working cycles; On the cylinder rod chamber in-line, be provided with flow speed control valve; Oil return is passed through radiator, winter through rotating three way cock, return filter to fuel tank through pilot operated directional control valve, Three-way rotary valve, summer; Stable and the protection of hydraulic system pressure is to be carried out by accumulator, safety valve, pressure switch.

Above-mentioned running block has one group, and it comprises a up movable pulley and the assembly pulley that descending movable pulley is formed, and realizes that the oil pumper stroke reaches the twice of beam hanger stroke.

Above-mentioned running block has two groups, realizes that the oil pumper stroke reaches four times of beam hanger stroke.

The utility model compact conformation, volume is little, in light weight, energy consumption is low, fault rate is low, security performance is good, working stability is reliable, improved balance quality, realize that sucker rod is according to the oil production technology needs, do upper and lower variable motion, improve the mechanical performance of equipment operation, improved the stability of system.

Four, description of drawings

Accompanying drawing 1 is a structural representation of the present utility model.

Accompanying drawing 2 is hydraulic transmission principle figure of the present utility model.

Accompanying drawing 3 is the i.e. wire rope transmission schematic diagram of four multiplication speed systems of the utility model embodiment 1.

Accompanying drawing 4 is the wire rope transmission schematic diagram of twice speedup system for the utility model embodiment 2.

Accompanying drawing 5 is the utility model ballast box schematic diagram.

Coding in the accompanying drawing is respectively: 1 is leading block, and 2 is intermediary's fixed pulley, and 3 is the lanyard end points, 4 is oil cylinder, and 5 is machinery bed, and 6 is hydraulic pump, 7 is motor, and 8 is radiator, and 9 is strainer, 10 is fuel tank, and 11 is electric control box, and 12 is reversal valve, 13 are the commutation link stopper, and 14 is reversing gear bracket, and 15 is running block, 16 is up rope, and 17 is descending rope, and 18 is up movable pulley, 19 is descending movable pulley, and 20 are the oil pumping directive wheel, and 21 are the oil pumping rope, 22 is tandem-driving bogie, 23 is machine frame, and 24 is the assembly pulley framework, and 25 is sucker rod, 26 is the counterweight chamber, and 27 is the tandem-driving bogie housing; 28 is accumulator, and 29 is safety valve, and 30 are the oil-feed strainer, and 31 is Three-way rotary valve, and 32 is hydraulic control one-way valve, and 33 is flow speed control valve, and 34 is pilot operated directional control valve, and 35 is damper, and 36 is pressure meter, and 37 is pressure controller, and 38 is hydraulic hose,

Five, the specific embodiment

The utility model is not subjected to the restriction of following embodiment, can determine concrete embodiment according to the technical solution of the utility model and actual conditions.

Below in conjunction with embodiment and accompanying drawing the utility model is further described:

Embodiment 1, shown in accompanying

drawing

1 and 4, this full-balance hydraulic transmission oil sucking machine comprises hydraulic means, and this hydraulic means comprises oil cylinder 4, piston and hydraulic pump 6, oil cylinder is connected with hydraulic pump 6 by fluid pressure line, fixed installation machine frame 23 and assembly pulley framework 24 on machine 5 bases; Tandem-driving bogie 22 is arranged in machine frame 23, in machine frame 23 top and the bottom leading block 1 is installed all, oil pumping leading block 20 is installed on the top of machine frame, one end of oil pumping rope 21 is fixedly mounted on the tandem-driving bogie 22, and oil pumping rope 21 can be connected with sucker rod 25 by leading block 20 its other ends of back on machine frame 23 tops; On machinery bed 5, vertically installing oil cylinder 4, (embodiment 1 adopts one group running block 15 in piston tip the running block 15 that is no less than a group to be installed, as shown in Figure 3, be two speedups), this running block 15 comprises up movable pulley 18 and descending movable pulley 19, one end of up rope 17 is fixed on the tandem-driving bogie 22, in the bottom of machine frame 23 leading block 1 is installed, 18 its other ends are connected with assembly pulley framework 24 behind the leading block 1 of up rope 17 by machine frame 23 bottoms and the up movable pulley, one end of descending rope 16 is fixed on the tandem-driving bogie 22, top at machine frame 23 also is equipped with leading block 1, and its other end is connected with assembly pulley framework 24 behind the rope leading block 1 of descending rope 16 by machine frame 23 tops and the descending movable pulley.In when work: at first be equal in weight when balancing weight makes sucker rod 25 zero loads that tandem-driving bogie 22 and oil pumping rope 21 hung by counterweight chamber 22 in, placing; When piston moves upward, tandem-driving bogie 22 is moved downward, thereby sucker rod is moved upward finish the oil pumping process of oil well pump by oil pumping rope 21 by the up rope 17 of up running block 18 index; When piston moves downward, tandem-driving bogie 22 is moved upward, make sucker rod 26 fall to finishing the reseting procedure of oil well pump by own wt by the descending rope 19 of descending movable pulley 19 tractions; Such reciprocating motion has just realized the oil pumping operation.

Embodiment 2, as accompanying drawing 1, shown in 3 and 4, embodiment 2 is with the difference of embodiment 1: on the assembly pulley framework 24 of embodiment 2, intermediary's fixed pulley 2 respectively is installed down, running block 15 i.e. first group of running block and second group of running block of two groups are installed in piston tip, first group of running block comprises the first up movable pulley and the first descending movable pulley, second group of running block comprises the second up movable pulley and the second descending movable pulley, one end of up rope 17 is fixed on the tandem-driving bogie 22, and up rope 17 is by the leading block 1 of machine frame 23 bottoms, the first up movable pulley, its other end is connected with rope pulley framing 24 behind the following intermediary fixed pulley of rope drive system framework 17 and the second up movable pulley; One end of descending rope 16 is fixed on the tandem-driving bogie 22, and its other end is connected with assembly pulley framework 24 behind the last intermediary fixed pulley of leading block 1, the first descending movable pulley by machine frame 22 tops of balance rope 16, assembly pulley framework 24 and the second descending movable pulley.So just realized four multiplication speed, realized piston rod speed * 4=sucker rod hoisting velocity under the effect of running block, the oil cylinder of 1 meter of stroke just can be realized 4 meters stroke like this.Avoid the piston rod high-speed motion, made piston rod movement speed reach perfect condition, obtained prolongation the application life of oil cylinder.

Shown in accompanying drawing 1 to 4, hydraulic means comprises the hydraulic pump 6 of variable, motor-driven reversal valve 35, pilot operated directional control valve 34, flow speed control valve 33, hydraulic control one-way valve 32, Three-way rotary valve 31, oil cylinder 4, the discharge capacity of hydraulic pump 6 outputs of variable is by pilot operated directional control valve 34, hydraulic control one-way valve 32, Three-way rotary valve 31, entering oil cylinder 4 rodless cavities promotion piston rod stretches out, the hydraulic control one-way valve on the rod chamber loop 32 is opened in the effect of system pressure, hydraulic oil is through pilot operated directional control valve 35, Three-way rotary valve 31, radiator 8, strainer 9 is to fuel tank 10, control link stopper 13 on the Fill argon clamping fixture 14 that is connected with the piston rod end is stirred motor-driven reversal valve 12 machine handles commutation, control oil channel promotes pilot operated directional control valve 34 commutations, pressure oil enters oil cylinder 4 rod chambers, piston rod descends, hydraulic control one-way valve on the rodless cavity loop 32 is opened, hydraulic oil oil sump tank 10 has just been finished a working cycles; On the cylinder rod chamber in-line, be provided with flow speed control valve 33; Oil return is arrived fuel tank 10 through pilot operated directional control valve 34, Three-way rotary valve 31, summer through radiator 8, process rotation in winter three way cock 31, return filter 9; Stable and the protection of hydraulic system pressure is to be carried out by accumulator 41, safety valve 40, pressure switch 37.

Above technical characterictic has constituted most preferred embodiment of the present utility model, and it has stronger compliance and best implementation result, can increase and decrease non-essential technical characterictic according to actual needs, satisfies the demand of different situations.

Claims

1, a kind of full-balance hydraulic transmission oil sucking machine, by the hydraulic means that comprises motor, two-way outputting power, assembly pulley variable speed drive, counterweigh case and associated mechanical part are assembled into the Hydraulic Power Transmission System of two-way work doing, the stand arrangement that this system and base, support, machine frame and bindiny mechanism thereof constitute constitutes the agent structure of this machine, it is characterized in that: the vertical hydraulic jack that the piston-type variable flow direction is installed on machinery bed, be connected with hydraulic pump by fluid pressure line, formation can be exported the hydraulic power supply of both direction power up and down; Be equipped with in piston tip and be no less than one group running block, this assembly pulley comprises up movable pulley and descending movable pulley, the guiding fixed pulley is installed on base and machine frame, by rope, running block and guiding fixed pulley and the component of machine of fixedlying connected thereof assembly can two-way work doing variable speed drive; The counterweigh case that moves up and down only is installed in machine frame, and tandem-driving bogie hollow can be placed the balance weight of varying number as required, and the upper and lower of tandem-driving bogie all is connected with rope in the assembly pulley, forms the bascule identical with rod weight.

2, full-balance hydraulic transmission oil sucking machine according to claim 1, it is characterized in that hydraulic means comprises the hydraulic pump of variable, motor-driven reversal valve, pilot operated directional control valve, flow speed control valve, hydraulic control one-way valve, Three-way rotary valve, oil cylinder, on turn over oil cylinder, the discharge capacity of the hydraulic pump output of variable is passed through pilot operated directional control valve, hydraulic control one-way valve, Three-way rotary valve, entering oil cylinder rodless cavity promotion piston rod stretches out, the hydraulic control one-way valve on the rod chamber loop is opened in the effect of system pressure, hydraulic oil is through pilot operated directional control valve, Three-way rotary valve, radiator, strainer is to fuel tank, stir the reversal valve commutation with the control link stopper on the Fill argon clamping fixture that the piston rod end is connected, control oil channel promotes the pilot operated directional control valve commutation, pressure oil enters cylinder rod chamber, piston rod descends, hydraulic control one-way valve on the rodless cavity loop is opened, the hydraulic oil oil sump tank has just been finished a working cycles; On the cylinder rod chamber in-line, be provided with flow speed control valve; Oil return is passed through radiator, winter through rotating three way cock, return filter to fuel tank through pilot operated directional control valve, Three-way rotary valve, summer; Stable and the protection of hydraulic system pressure is to be carried out by accumulator, safety valve, pressure switch.

3, full-balance hydraulic transmission oil sucking machine according to claim 1 and 2, it is characterized in that the upper and lower intermediary's fixed pulley that respectively is equipped with of assembly pulley framework, in piston tip two groups running block is installed, every group of movable pulley all comprises up movable pulley and descending movable pulley; One end of up rope is fixed on the tandem-driving bogie, and its other end is connected with the assembly pulley framework behind the following intermediary fixed pulley of the leading block of up rope by the machine frame bottom, first up movable pulley, rope drive system framework and second the up movable pulley; One end of descending rope is fixed on the tandem-driving bogie, and its other end is connected with the assembly pulley framework behind the last intermediary fixed pulley of the leading block of descending rope by machine frame top, first descending movable pulley, assembly pulley framework and second the descending movable pulley.

4, full-balance hydraulic transmission oil sucking machine according to claim 3 is characterized in that running block has one group, and it comprises a up movable pulley and the assembly pulley that descending movable pulley is formed.

5, full-balance hydraulic transmission oil sucking machine according to claim 3 is characterized in that running block has two groups.