CN201953357U

CN201953357U - Novel roller-type oil pumping machine

Info

Publication number: CN201953357U
Application number: CN201120050426XU
Authority: CN
Inventors: 梁宏宝; 李举辉; 韩修廷
Original assignee: DAQING EMPOLDER SECTION HUACHUANG ELECTRON Co Ltd
Current assignee: Jinze, Heilongjiang Sheng Rui Polytron Technologies Inc
Priority date: 2011-03-01
Filing date: 2011-03-01
Publication date: 2011-08-31
Anticipated expiration: 2021-03-01

Abstract

The utility model relates to a novel roller-type oil pumping machine, which mainly solves the problem that the conventional flexible oil pumping machine has a small stroke and is not suitable for a large-stroke oil well. The novel roller-type oil pumping machine is characterized in that: a guide wheel (8) and a roller wheel group (9) are fixed to the top of a machine body frame (1); the roller wheel group (9) consists of a large roller (17) and a small roller (13) which are coaxial; the guide wheel (8) is aligned with the small roller (13) in the roller wheel group (9); a traction wheel (5) is fixed at one end, opposite to a gear box output shaft, on a crank (6); the traction wheel (5), the guide wheel (8) and the small roller (13) are connected through an oil pumping rope A (7); and the large roller (17) is wound with an oil pumping rope B (10) and is aligned with a well opening. The novel roller-type oil pumping machine has the characteristics of small crank and large stroke, and is particularly suitable for the large-stroke oil well.

Description

Novel drum type pumping unit

Technical field

The utility model relates to the used reducer of field, oil field oil pumper, and a kind of specifically oil pumper secondary balancing is speed reducer dedicated.

Background technology

Pumping production is the main means of China's field produces, accounts for more than 90% of machine-pumped oil well.A large amount of flexible oil pumpers has replaced traditional sucker rod oil pumper at present, and its advantage is economize on electricity, efficient height, and the subject matter of existence is that stroke is little, is not suitable for the use of big stroke oil well.Main cause is that flexible oil pumper structure is little, and corresponding motor, reducer, throw of crankshaft structure all diminish, and want to improve stroke, can only improve the length of throw of crankshaft, and waste steel like this.

Summary of the invention

In order to overcome the deficiency that existing flexible oil pumper stroke is little, be not suitable for big stroke oil well, the utility model provides a kind of novel drum type pumping unit, and this novel drum type pumping unit has the characteristics of small crank, big stroke, is specially adapted to big stroke oil well.

The technical solution of the utility model is: a kind of novel drum type pumping unit, comprise the crank that connects on organism frame, gear-box and the output shaft thereof, the top of described organism frame is fixed with directive wheel and cylinder wheels, the cylinder wheels are made up of coaxial swift and doffer, doffer in directive wheel and the cylinder wheels aligns, the end that described crank is relative with gearbox output shaft is fixed with traction wheel, is connected by oil pumping rope A between traction wheel, directive wheel and the doffer, twines restrict B and align of oil pumping on the swift with well head.

The side of described organism frame is fixed with the stroke governor motion of arc, and having on the described stroke governor motion can be along the slide block of its slide, is fixed on the slide block after the end of oil pumping rope A is walked around traction wheel.

Described crank is two, place the output shaft two ends of gear-box respectively, corresponding traction wheel, directive wheel are two, and respectively there is a doffer swift both sides on the described cylinder wheels, directive wheel A and doffer A align, and directive wheel B and doffer B align.

Described swift is 2:1 with the ratio of the radius of doffer.

The utlity model has following beneficial effect: because this novel drum type pumping unit adopts technique scheme, between oil pumping rope A and oil pumping rope B, add rolling wheels, oil pumping rope A twines on the doffer of rolling wheels, oil pumping rope B twines on the swift of rolling wheels, crank rotates and drives big or small cylinder rotation, and since on the cylinder wheels radius ratio of big doffer greater than 1, under oil pumper general structure size constancy, the constant situation of oil pumping throw of crankshaft, the oil pumper stroke is enlarged.Simultaneously,, save steel, be particularly suitable for big stroke beam-pumping unit by the size that the radius ratio that changes big doffer can be regulated stroke.

Description of drawings:

Fig. 1 is a structural representation of the present utility model;

Fig. 2 is the structural representation of cylinder wheels;

Vertical view when Fig. 3 is two for directive wheel.

1-organism frame among the figure, 2-gear-box, 3-gear-box support, 4-reducer, the 5-traction wheel, 6-crank, 7-oil pumping rope A, 8-directive wheel A, 9-cylinder wheels, 10-oil pumping rope B, 11-stroke governor motion, 12-key A, 13-doffer A, 14-bearing cover, 15-bearing support, 16-self-aligning bearing, the 17-swift, 18-axle, 19-key B, 20-doffer B, 21-directive wheel B, 22-oil pumping rope C.

The specific embodiment:

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

By Fig. 1, shown in Figure 2, a kind of novel drum type pumping unit comprises organism frame 1, gear-box support 3, gear-box 2, reducer 4, and reducer 4, gear-box 2 are fixed on the gear-box support 3, and gear-box support 3 is fixed on organism frame 1 inside.Connecting crank 6 on gear-box 2 output shafts, electric motor starting drive reducer 4 and rotate, and the power of reducer 4 outputs drives crank 6 rotations by gear-box 2 commutation backs, and the outside of a relative end with gearbox output shaft is fixed with traction wheel 5 on the crank 6.The top of described organism frame 1 is fixed with directive wheel 8 and cylinder wheels 9, directive wheel 8 vertical direction are alignd with gear-box 2 output shafts of bottom, cylinder wheels 9 are made up of coaxial swift 17 and doffer A13, and the doffer 13 in directive wheel A8 and the cylinder wheels 9 aligns.Is connected by oil pumping rope A7 between traction wheel 5, directive wheel 8 and the doffer A13, twines restrict B10 and align of oil pumping on the swift 17 in the cylinder wheels 9 with well head.When traction wheel 5 rotates with crank 6, can drive doffer A13 by oil pumping rope A7 and rotate, swift 17 together rotates with doffer A13, moves up and down thereby drive oil pumping rope B10, recovers the oil.And because the radius ratio of large and small cylinder under the constant situation of oil pumper general structure size constancy, oil pumping throw of crankshaft, enlarges the oil pumper stroke greater than 1 on the cylinder wheels.Simultaneously,, save steel, be particularly suitable for big stroke beam-pumping unit by the size that the radius ratio that changes large and small cylinder can be regulated stroke.

The side of described organism frame 1 can be fixed with the stroke governor motion 11 of arc, on the stroke governor motion 11 track is arranged, having on the track can be along the slide block of its slip, at this moment, after walking around traction wheel 5, the end of oil pumping rope A7 is fixed on the slide block, the other end is fixed on the doffer 13, by the diverse location of slide block at stroke governor motion 11, the size that can regulate stroke.When crank 6 when 12 positions (vertically upward promptly), slide block moves upward to the top that can reach along track, when crank 6 when 12 inverse position hour hands move to 6 positions (vertically downward promptly), slide block moves in orbit and can reach bottom, crank 6 transports upwards from the below that slide block moves upward along track again the merits and demerits journey again, reaches the purpose of automatic adjusting stroke.

In order to make cylinder wheels 9 stress equalizations, as preferably, described crank 6 is two, place the output shaft two ends of gear-box 2 respectively, as shown in Figure 3, corresponding traction wheel, directive wheel is two, respectively there is a doffer A13 swift 17 both sides on the described cylinder wheels 9, doffer B20, directive wheel A8 and doffer A13 align, directive wheel B21 and doffer B20 align, oil pumping rope A7 walks around traction wheel 5, be fixed on behind the directive wheel 8 on the doffer A13, the end of oil pumping rope C22 is fixed on the stroke governor motion of opposite side, walks around its corresponding traction wheel, be fixed on behind the directive wheel B21 on the doffer B20.

The structure of cylinder wheels 9 as shown in Figure 2, swift 17 is fixed on the axle 18 by key B19, doffer A13, doffer B20 are fixed on the axle 18 by key A12, axle 18 supports by bearing support 15, and self-aligning bearing 16 is arranged in the bearing support 15, there is bearing cover 14 outside.As preferably, described swift 17 is 2:1 with the ratio of the radius of doffer 13, like this, can the oil pumper stroke be expanded be twice under the constant situation of oil pumper general structure size constancy, oil pumping throw of crankshaft.

During this drum type pumping unit work, the gear in the reducer 4 driven gear casees 2 rotates, thereby drives crank 6 rotations, and crank 6 rotates by the moving cylinder of oil pumping rope band, thereby makes the downhole pump oil pumping.When crank 6 by 12 positions during to the motion of 6 positions, cylinder rotates counterclockwise, and drives oil pump plunger piston and moves upward; When crank 6 by 6 positions during to the motion of 12 positions, cylinder clockwise rotates, this moment, oil pump plunger piston moved downward by self gravitation.And so forth, realize oil pumping.

Claims

1. novel drum type pumping unit, comprise organism frame (1), the crank (6) that connects on gear-box (2) and the output shaft thereof, it is characterized in that: the top of described organism frame (1) is fixed with directive wheel (8) and cylinder wheels (9), cylinder wheels (9) are made up of coaxial swift (17) and doffer (13), doffer (13) in directive wheel (8) and the cylinder wheels (9) aligns, described crank (6) is gone up an end relative with gearbox output shaft and is fixed with traction wheel (5), traction wheel (5), is connected by oil pumping rope A (7) between directive wheel (8) and the doffer (13), swift (17) is gone up and is twined restrict B (10) and align with well head of oil pumping.

2. novel drum type pumping unit according to claim 1, it is characterized in that: the side of described organism frame (1) is fixed with the stroke governor motion (11) of arc, having on the described stroke governor motion (11) can be along the slide block of its slide, is fixed on the slide block after the end of oil pumping rope A (7) is walked around traction wheel (5).

3. novel drum type pumping unit according to claim 1 and 2, it is characterized in that: described crank (6) is two, place the output shaft two ends of gear-box (2) respectively, corresponding traction wheel, directive wheel are two, respectively there are a doffer A, B (13 in swift (17) both sides on the described cylinder wheels (9), 20), directive wheel A (8) and doffer A (13) align, and directive wheel B (21) and doffer B (20) align.

4. novel drum type pumping unit according to claim 3 is characterized in that: described swift (17) is 2:1 with the ratio of the radius of doffer (13).