CN202228046U

CN202228046U - Double-well oil pumping unit of direct-drive motor

Info

Publication number: CN202228046U
Application number: CN201120063215XU
Authority: CN
Inventors: 肖文生; 崔俊国; 王全宾
Original assignee: BEIJING LANDY GREAT EXPLOIT SCIENCE AND TECHNOLOGY DEVELOP Co Ltd
Current assignee: Landy Weiye Technology Group Co., Ltd.
Priority date: 2011-02-23
Filing date: 2011-02-23
Publication date: 2012-05-23
Anticipated expiration: 2021-02-23

Abstract

The utility model discloses a double-well oil pumping unit of a direct-drive motor. The double-well oil pumping unit is composed of a permanent magnet motor, a shaft coupler, a head sheave assembly, a belt assembly, a guide wheel assembly, an expanding pulley assembly, a girder assembly and a counter weight. The double-well pumping unit of the direct-drive motor is characterized in that the output shaft of the permanent magnet motor is directly connected with the head sheave assembly through the shaft coupler; one end of the belt assembly, which is provided with four belt heads, is connected with a main wellhead polish rod after bypassing the guide wheel assembly; two belt heads outside the other end of the belt assembly is connected with the counter weight after bypassing the head sheave assembly while two belt heads inside the other end of the belt assembly is connected with an auxiliary wellhead polish rod after bypassing the expanding pulley assembly; and the expanding pulley assembly can be adjusted to adapt to two wells with different well spaces. The double-well pumping unit of the direct-drive motor has the beneficial effect that the main shaft of the head sheave assembly is directly driven to rotate through the rotation of the permanent magnet motor without a deceleration device and a reversing mechanism ; during working, two wells are used as the counter weight of each other, so that the effect of deep pumping of a big pump can be realized so as to obviously increase the yield of oilfields; and the double-well pumping unit of the direct-drive motor has good economy and reduces energy and material consumptions.

Description

The direct driving motor twin-well oil-pumping machine

Technical field

The utility model is the novel oil production mechanical device of oil recovery aspect, oil field, belongs to oil recovery machiner technical research field.

Background technology

At present, oil production method has oil flow production and mechanical oil recovery method, along with the continuous development in oil field, adopts the oil field of oil flow production method the phenomenon of water logging with strong water logging to occur in the middle and later periods, in order to guarantee crude oil yield, just must adopt the mechanical oil recovery method.At present, on average about 20%, its energy consumption accounts for 1/3rd of field produces total energy consumption to China's oil pumping system efficient, improves oil pumping system efficient, and reducing the oil pumping system energy consumption is to reduce cost of crude oil production and the effective way that improves the business economic benefit.

The maturation day by day of oil exploration and drilling technology makes the cluster well exploitation become the oil field development trend day by day, more than 800 of the existing cluster well groups of China, more than 3000 mouthful of well, annual more than 500 mouthful of the cluster well that increase newly.Along with being on the increase of ocean oil well, land infill well and cluster well, such oil well is also adopted the mining type of a machine one well, not only can make the electric energy huge waste, and equipment cost is also very expensive.But the mechanical oil recovery technology of cluster well is very backward; Development becomes and presses for the energy-efficient cluster well oil extractor of exploitation; The advantage of cluster well oil extractor is to make full use of the close characteristics of Liang Koujing, with an oil pumper two mouthfuls of wells is pumped simultaneously, two mouthfuls of wells mutual balance of loading; Can reduce energy consumption, the material consumption of oil pumping system, satisfy the DP technology needs to greatest extent; Help the remote supervisory The Application of Technology, to guarantee oil well safe operation normally and efficiently; Be convenient to improve the oil pumping system pumping efficiency.

Summary of the invention

For practicing thrift equipment cost, reduce energy consumption, the material consumption of cluster well oil pumping system, we develop a kind of novel oil recovery machiner---direct driving motor twin-well oil-pumping machine according to the development level of oil field present situation and motor.The utility model meets the DP technology requirement, on the basis that cuts down the consumption of energy, improves oil recovery, uses the design concept of simplifying; Have superior performance, security of operation is stable, and maintenance cost is low; The efficient advantages of higher, particularly promoting the use of of cluster well suits on the oil field.

The utility model is that the technical scheme that problem adopted that solution proposes is: the direct driving motor twin-well oil-pumping machine is made up of magneto, shaft coupling, day wheel assembly, belt assembly, guide wheel assembly, expanding pulley assembly, truss assembly, counterweight, it is characterized in that the output shaft of magneto directly is connected with shaft coupling with a day wheel assembly; Belt assembly one end is walked around the guide wheel assembly and is connected with the main shaft mouth polish rod, and this end has four leather belt heads; Two leather belt heads in the outside of the other end are walked around day wheel assembly and are connected with counterweight, and two leather belt heads of the inside are walked around the expanding pulley assembly and linked to each other with the service shaft mouth polish rod; On the expanding pulley assembly locating pin structure is arranged.What magneto was selected for use is multipole permanent-magnet synchronous low-speed big AC servo motor, can realize rotating control at an easy rate; Shaft coupling adopts the flange spline coupling, to strengthen the ability of transfer torque, reduces energy loss; The truss assembly comprises truss footstock, truss body supports, weight guide, truss base, and the truss body supports adopts flange plate bolt to be connected with truss footstock, truss base; Counterweight adopts four block casting iron ways of connecting, and counterweight can split like this, the processing convenient transportation.

The beneficial effect of the utility model is:

1. realize the twin-well oil pumping, and can be through regulating expanding pulley to adapt to the oil well of different well spacings.

2. the truss assembly structure is simple, and is in light weight, and floor space is little, saves raw material.

3. saved deceleration device, made the compact conformation of oil pumper, weight saving, efficient significantly improves.

4. application of frequency conversion technology realizes soft start and soft stop and does not have the switching-over of impact, has cancelled complicated changement.

6. can realize long stroke, low jig frequency, obviously increase field output.

7. cost performance is high, and good economy performance has reduced energy consumption, material consumption.

Description of drawings

Fig. 1 is that magneto is connected sketch map with a day wheel assembly, has represented that the output shaft of magneto passes through the relation that shaft coupling directly links to each other with the sky wheel assembly.

Fig. 2 is a guide wheel assembly elevation.

Fig. 3 is an expanding pulley assembly elevation.

Fig. 4 is a belt assembly normal axomometric drawing.

Fig. 5 is a truss assembly normal axomometric drawing.

Fig. 6 is the oil pumper lateral view.

Fig. 7 is the oil pumper normal axomometric drawing.

In the drawings, 1. magneto, 2. shaft coupling, 3. day wheel assembly, 4. guide wheel assembly, 5. alignment pin; 6. fag end, 7. connector is 8. gone up elevator, and 9.U shape piece 10. descends elevator; 11. belt, 12. truss footstocks, 13. truss body supports, 14. weight guides, 15. truss bases.

The specific embodiment

Further illustrate the structure and the operating principle of the utility model below in conjunction with accompanying drawing.

In Fig. 1, the output shaft of magneto (1) directly links to each other with a day wheel assembly (3) through shaft coupling (2), and a day wheel assembly (3) is as a whole wheel, axle and web weldering, and two ends fit on bearing constitutes; Guide wheel assembly (4) structure is identical with day wheel assembly (3), and just size is little, like Fig. 2; In Fig. 3, the expanding pulley assembly is realized the selection of diverse location through alignment pin (5).

In Fig. 4, the belt assembly is made up of fag end (6), connector (7), last elevator (8), U-shaped piece (9), following elevator (10), belt (11) etc.Main shaft mouth one end has four leather belt heads, two leather belt heads of service shaft mouth one end, and two leather belt heads link to each other with counterweight in addition.Leather belt head and fag end (6) are when being connected, and the installing hole of fag end (6) the inside is installed O shape rubber ring earlier.

In Fig. 5; The truss footstock (12) of truss assembly and truss base (15) are that the i iron with different model is welded according to the designing and calculating size; Truss body supports (13) be by four rectangular steel pipes as supporting leg, middle form with the square tube reinforcement of weld, the employing flange plate bolt is connected between truss body supports (13) and truss footstock (12), truss base (15) three; Weight guide (14) is fixed on the inboard of truss assembly.

Fig. 6 and Fig. 7 are the direct driving motor twin-well oil-pumping machine that assembles; Magneto (1) places above the truss footstock (12) of truss assembly through shaft coupling (2) and the integral body that sky wheel assembly (3) is connected to; Guide wheel assembly (4) is installed in a side of truss assembly, and the expanding pulley assembly is installed in relative opposite side; Belt assembly one end is walked around the guide wheel assembly and is connected with the main shaft mouth polish rod, and this end has four leather belt heads; Two leather belt heads in the outside of the other end are walked around day wheel assembly and are connected with counterweight, and two leather belt heads of the inside are walked around the expanding pulley assembly and linked to each other with the service shaft mouth polish rod.

Claims

1. a direct driving motor twin-well oil-pumping machine is made up of magneto, shaft coupling, day wheel assembly, belt assembly, guide wheel assembly, expanding pulley assembly, truss assembly, counterweight, it is characterized in that the output shaft of magneto directly is connected with shaft coupling with a day wheel assembly.

2. direct driving motor twin-well oil-pumping machine according to claim 1 is characterized in that belt assembly one end walks around the guide wheel assembly and be connected with the main shaft mouth polish rod, and this end has four leather belt heads; Two leather belt heads in the outside of the other end are walked around day wheel assembly and are connected with counterweight, and two leather belt heads of the inside are walked around the expanding pulley assembly and linked to each other with the service shaft mouth polish rod.

3. direct driving motor twin-well oil-pumping machine according to claim 1 is characterized in that on the expanding pulley assembly locating pin structure being arranged.