CN2206360Y - Material-saving energy-saving oil pumping unit - Google Patents

Abstract

The utility model belongs to the technical field of petroleum oil-extraction machinery. The utility model is sheathed with a retractable auxiliary walking beam on a walking beam of the material-saving energy-saving oil pumping unit. A counterweight is arranged in a counterweight gabion. The top and the bottom of the counterweight gabion are all provided with a hinge. The hinges are respectively hinged with adjustable rods of the auxiliary walking beam and the walking beam. The counterweight gabion can set the counterweight of the walking beam at any scheduled positions to obtain optimum balance according to the well condition. The counterweight gabion also has sufficient space to contain the counterweight made up of cheap ores with high specific gravity. Thus the material-saving energy-saving oil pumping unit is constituted. The utility model inherits the advantages of a conventional out phase type walking beam oil pumping unit. Compared with the conventional out phase type walking beam oil pumping unit, the power is saved by 15% more than actuality at least; the weight of the complete appliance is lightened by 50%; the installation electric capacitance is decreased by 60%.

Description

Material-saving energy-saving oil pumping unit

The utility model belongs to petroleum recovering machinery technical field.

The oil field is being extensive use of now by GB GB11649-89 design, the various beam pumping units made, and it is by motor, speed reducer, and balancer weight, and support, support, crank, connecting rod, walking beam quadratic crank mechanism are formed.They not only can be general satisfy the oil production technology requirement, unique advantage such as steal so that sturdy reliable, durable in use, simple in structure, convenient operating maintenance, anti-theft are anti-, well received.Yet,, cause negative consequence for user and manufactory commercial city because the restriction of this type of type self structure and working principle need expend a large amount of ferrous materials and the excessive motor of use capacity.

In recent years Kai Fa gas/liquid balance beam type oil pump with its novel structure and dexterous covert beam balance, has realized that province's material is energy-conservation.But according to the scene reflection, it is by chance sturdy inadequately reliable, the Operation and Maintenance more complicated; Especially it has some parts exquisite valuable, very easily causes pilferage, is forced to stop production; Simultaneously, the manufacturing difficulty of this machine is bigger, though complete machine is light, cost is still higher, thereby also fails to be applied.

Task of the present utility model provides a kind of beam pumping unit, and it utilizes beam balance and uses the cheap sand of part, stone material, and can keep and bring into play the distinct advantages of now using beam pumping unit again can energy-conservation province material.

For solving above-mentioned task, the solution that the utility model adopts is: a kind of beam pumping unit, it is made up of motor, speed reducer, balancer weight, walking beam, horse head, crank, connecting rod, support, base etc., it is characterized in that: suit a scalable secondary walking beam in the walking beam, and supporting rollern, actuation gear tooth bar pair, lock bolt and safe postioning abutment are housed between this two walking beam; Balancer weight places balancer weight basket/case, and balancer weight basket/case has hinge up and down, and is hinged with scalable secondary walking beam and the adjustable rod member of walking beam respectively.There has been scalable secondary walking beam to reach the balancer weight basket/case that firmly is hinged on two walking beams, both can beam balance have been focused on to regulate arbitrarily in its plane of movement and be positioned at the precalculated position by the hole condition requirement, to obtain optimum balance, can there be sufficient room to hold the balancer weight made from cheap high gravity ore sand again, have constituted province's material energy-saving balance beam type pumping machine.

Above-mentioned speed reducer, crank, connecting rod can split both sides at support with horse head---and promptly rear-mounted; Also can install in the same side---be front-located mode; Select for use according to the different type of machines flexible design.

Make for convenience, or make full use of space increasing balance dynamics, scalable secondary walking beam can be made hollow, also can become solid with high gravity concrete or other weight filling.

For moving situation and the weight reduction that improves complete machine, for walking beam, the face shaping of its structure can be traditional rectilinear, also can be leg-of-mutton.

Supporting rollern is the scalable secondary walking beam of supporting, and it also can be the plane slideway of polishing by the raceway that roller or roller or steel ball are formed.

Used actuation gear tooth bar pair in order to drive scalable secondary walking beam, it also can be a screw pair, or hydraulic cylinder mechanism, or the rope sheave haulage gear, or the lever sled is dialled mechanism.

For the scalable secondary walking beam that mixes up the position, lock bolt is adopted in necessary solid and reliable locking here, also can singly use voussoir or pin or brake shoe or ratchet or hydrodynamic body, also can be their assembly parts.

Safe and reliable in order to ensure complete machine also will make the safe postioning abutment spacing to scalable secondary walking beam on walking beam, this can be a rigidity, and also can be becomes flexible with block rubber or spring or fluid cylinder.

Balancer weight in this programme is that proportion is higher than 4.2 barite or iron ore or manganese ore stone sand, or sand, piece, powder mixture, is contained in balancer weight basket/case.This balancer weight price is less than 5% of cast iron balancer weight in the past, so reduced the anxiety of pilferage greatly!

Said balancer weight basket/case is the utensil that holds balancer weight, can be integrated type, also can be split layer drawer assembly type.

The utility model in use, can take out the original data of pumping well or take out pumping well dynamograph indicator diagram according to changing, optimum balance polished rod effect curve is selected in design, according to this curve, can calculate the balancer weight and the movement locus of its center of gravity that need in the space, by adjusting the position that scalable secondary walking beam stretches out walking beam, the upper-lower position or the drift angle of the relative walking beam axis of balancer weight basket/case, the position of balancer weight center of gravity in basket/case, the size of balancer weight quality etc., just can meet the demands very easily, make balance of well pumping unit moment and pumping unit load moment at waveform, phase place, obtain comprehensive optimum Match on the size, generally acknowledge the very good gas/liquid balanced oil extractor of counterbalance effect thereby its counterbalance effect can be met or exceeded.

The utility model is compared with existing type, has the following advantages:

1. it keeps and has developed existing with aforesaid all distinct advantages of beam pumping unit.

2. it has significantly reduced the ferrous materials consumption of complete machine.

Is 33500kg as one with the CYJY14-4.8-73HB(gross mass) suitable the utility model model machine, the not enough 16500kg of its gross mass (disregarding the sandstone material) saves ferrous materials 17000kg, only reaches 49.3% of former machine quality.

3. it is saved electric energy and reduces motor installation electricity capacity.

According to the model machine on-the-spot test, than homotype non-synchronous crank balance pumping unit, can actual more piece economize electric energy 15% at least, reduce the former motor 55kw that uses of electric motor power 60%(, now use 22kw).

Below in conjunction with accompanying drawing, embodiment the content of technological scheme is described in further detail.

Fig. 1 is an embodiment of the present utility model;

Fig. 2 is the indicator diagram that beam-pumping unit records on polished rod;

Fig. 3 is that the developed curve (being the polished rod load curve) of above-mentioned indicator diagram and balace weight act on the equilibrant curve (being balance polished rod effect curve) on the polished rod;

Fig. 4 is the assembling schematic representation of another scalable secondary walking beam and walking beam;

Fig. 5 is a kind of schematic representation of triangle walking beam; Fig. 6 is an A-A sectional drawing among Fig. 4.

Fig. 1 is one and is installed on the oil well 2 single beam balance, rear-mounted beam pumping unit, the same with conventional beam-pumping unit, it is by motor 15, speed reducer 14, be placed on the balancer weight 17 in the balancer weight basket 22, walking beam 5, horse head 4, crank 13, connecting rod 12, support 6, base 1, polished rod 3 formations such as grade.Different is to have penetrated a scalable secondary walking beam 11 in the middle of the tail end of its walking beam 5, and its end is by hinge 21 articulated baskets 22.Hinge 21 can have diverse location on basket 22, to adjust the upper-lower position of basket 22 relative walking beam 5 horizontal axiss.Basket 22 can also be done the deflection of several angle by being hinged on the adjustable rod member 24 of walking beam on the hinge 23 around the axis of hinge 21.Adjustable rod member 24 by rod member with positive and negatively buckle screw rod and spend blue nut to constitute, can elongate or shorten easily, and locking.Place the balancer weight 17 in the basket 22, have loader 19 and gravity flow to draw off device 16, obviously, what the balancer weight of present embodiment was used is heavy mineral sand in bulk.Suspension hook 20 is housed on the balancer weight 17, and basket 22 is provided with removable pin plate hole 18, can place manual hoist crane or jack in case of necessity balancer weight handling is again arrived new position, and insert another group pin plate hole 18 with the pin plate on the basket 22, retightens.

Supporting rollern 7 is installed in the upper right side of secondary walking beam 11, below the upper flange on walking beam 5, with secondary walking beam 11 can about roll, roller 7a is installed in the left-end point of the lower wing plate of walking beam 5, supports secondary walking beam 11.

Actuation gear tooth bar pair 9 by being contained in the tooth bar on the secondary walking beam 11 and forming with the gear that axle passes walking beam 5, when needing, can place level with walking beam 5, removes the gear shaft that commentaries on classics exposes in the walking beam both sides with the sleeve spanner, drives secondary walking beam 11.

The lock bolt 8 and the 8a of four band handwheels are housed in the both sides of walking beam, behind secondary walking beam 11 settings, should tight a bolt 8 and 8a, with secondary walking beam 11 lockings.

Safe postioning abutment 10 is contained in walking beam 5 left ends and stretches in the walking beam, firmly connects with walking beam 5 usefulness screws, in case after the locking of secondary walking beam, accident is deviate from.

Ordinate P is a polished rod load among Fig. 2 and Fig. 3, the kN of unit.Horizontal ordinate S is the polished rod vertical displacement, the m of unit.The curve I is an actual indicator card of oil well, because of horse head is to-and-fro motion, so the curve I is sealed.In order to say something, in Fig. 3, it has been launched.The A point is the lower dead centre of polished rod motion, and the B point is the upper dead center of polished rod motion, and the curve II is of the present utility model with machine two routine balance polished rod effect curves, and the curve III is the typical balance polished rod effect curve of gas/liquid balance beam type oil pump.As seen from Figure 3, the counterbalance effect that shows of curve II obviously is better than the curve III.And when reality was used, the curve II can also reach better balance boundary by the comprehensive adjustment of secondary walking beam, balancer weight basket, balancer weight etc.

Among Fig. 4, the secondary walking beam 11 that raceway that 7b is made up of roller and roller 7a are supporting the filling concrete jointly, secondary walking beam 11 relies on removes the leading screw that changes screw pair 9a, can freely stretch, also have two locking nut 8b on it, can be the secondary walking beam locking that links with leading screw.Absolute reliable for what guarantee to lock, also on walking beam 5, fixed leaf spring 10a, it penetrates in the walking beam 5, is bearing in secondary walking beam 11 tops, rolls out walking beam 5 to limit secondary walking beam 11 with roller 7b; Also wear the taper pin 10b of double headed roller locknut 8c in the side of walking beam 5 and secondary walking beam 11, also play location and locking effect.(see figure 6)

Walking beam 5 is triangles among Fig. 5, and adjustable rod member 24 1 ends and walking beam are hinged, and the other end has hinge 23 and balancer weight basket 22 to join, and 7a is the support roller of the secondary walking beam of supporting.Adjustable rod member 24 is shorter among this figure, and is more stable when stressed.

From Fig. 1 as seen, the utility model: 1. what adopt is beam balance, crank does not participate in balance substantially, so physical length of crank, far be shorter than the beam pumping unit of pure crank balance, thereby speed reducer reduces significantly apart from ground level, connecting rod increases a lot, load and balancer weight from horse head obtained balance on walking beam in addition, and the stressed and kinetic characteristic of crank mechanism is moreover improved; 2. equilibrant and load split in the both sides of support and all are that vertical is downward, and the suffered horizontal component of support is more much smaller than conventional beam-pumping unit; 3. the balancer weight basket places outside the walking beam end, and very big space is all arranged up and down, can make very big volume, so both can hold a large amount of ballast ore sand material, can reduce itself center of gravity again; 4. walking beam is strengthened because of setting up adjustable rod member, makes main cross section materials attenuate greatly; 5. secondary walking beam cantilever arm is changeable, needn't change balancer weight, just can change trimming moment on a large scale.

All these have not only reduced the center of gravity of complete machine, have improved the moving situation of quadratic crank mechanism, have increased the stability of complete machine, and make support simplify speed reducer support step-down.In addition, polished rod moves when the section of upper and lower dead point, and the balance weight average is in the optimum position, can eliminate the generator state operation of motor and realize light-load starting.So the gross mass of complete machine significantly alleviates, need not to use the motor of excess capacity, and save electric energy.

Claims (10)

1, a kind of province material energy-saving balance beam type pumping machine, it is made up of motor, speed reducer, balancer weight, walking beam, horse head, crank, connecting rod, support, base etc., it is characterized in that: suit a scalable secondary walking beam in the walking beam, and supporting rollern, actuation gear tooth bar pair, lock bolt and safety stop are housed between this two walking beam; Balancer weight places balancer weight basket/case, and balancer weight basket/case has hinge up and down, and is hinged with scalable secondary walking beam and the adjustable rod member of walking beam respectively.

2, beam pumping unit according to claim 1 is characterized in that: speed reducer, crank, connecting rod can split both sides at support with horse head---and promptly rear-mounted, also can install in the same side---be front-located mode.

3, beam pumping unit according to claim 1 is characterized in that: scalable secondary walking beam can be made hollow, also can become solid with high gravity ore concrete or other weight filling.

4, beam pumping unit according to claim 1 is characterized in that: walking beam can be a lineal shape, also can be leg-of-mutton.

5, beam pumping unit according to claim 1 is characterized in that: the raceway that supporting rollern is made up of roller or roller or steel ball also can be the plane slideway of polishing.

6, beam pumping unit according to claim 1 is characterized in that: actuation gear tooth bar pair also can be a screw pair, or hydraulic cylinder mechanism, or the rope sheave haulage gear, or the lever sled is dialled mechanism.

7, beam pumping unit according to claim 1 is characterized in that: lock bolt can singly be used voussoir or pin or brake shoe or ratchet or hydrodynamic body, also can be their assembly parts.

8, beam pumping unit according to claim 1 is characterized in that: safe limiting stopper can be a rigidity, also can be to have block rubber or spring or fluid cylinder to become flexible.

9, beam pumping unit according to claim 1 is characterized in that: balancer weight is that proportion is higher than 4.2 barite or iron ore or manganese ore stone sand, or sand, piece, powder mixture.

10, beam pumping unit according to claim 1 is characterized in that: balancer weight basket/case can be an integrated type, also can be split layer drawer assembly type.