CN2371367Y - Involute double hoisting sheave pumping unit - Google Patents
Involute double hoisting sheave pumping unit Download PDFInfo
- Publication number
- CN2371367Y CN2371367Y CN 98249542 CN98249542U CN2371367Y CN 2371367 Y CN2371367 Y CN 2371367Y CN 98249542 CN98249542 CN 98249542 CN 98249542 U CN98249542 U CN 98249542U CN 2371367 Y CN2371367 Y CN 2371367Y
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- CN
- China
- Prior art keywords
- wheels
- involute
- pumping unit
- rope
- involute type
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- Expired - Lifetime
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Abstract
The utility model relates to an involute type double hoisting sheave oil pumping unit. The utility model improves the operating performance of an oil pumping unit, reduces the acceleration and the peak value of the torque of an output shaft and eliminates the negative torque of a crank shaft. The utility model has obvious energy-saving effect. Two involute type wheels 9 of which the space is holosymmetric and two isodiametric wheels 10 of which the space is holosymmetric are arranged on a rotating shaft 14 which passes through a well head bracket 13, arc-shaped rope grooves are arranged on the two kinds of wheels, and the two involute type wheels 9 are connected with a crank on a speed reducer 5 by a wire rope 8 and a connecting rope device 7. The two involute type wheels 9 can be rotated by a motor 2 so as to drive the two isodiametric wheels 10 on a same shaft to rotate, so a sucker rod under a well does reciprocating movement in order to pump oil to the ground.
Description
The utility model relates to a kind of pumping unit on the oil field, belongs to the two head sheave pumping units of involute-type, and rope connector and shackle line and rope hanger on motor, speed reducer, the crank are arranged on the pumping unit.
Utilize on the oil field pumping unit underground crude oil pumping to ground.At present, widely used pumping unit can be divided into beam pumping unit and no beam pumping unit on the oil field; The transmission (being crank, connecting rod, crossbeam and wire rope combining form) that can divide positive drive and rigid and flexible to combine from the type of belt drive.Because pumping unit becomes in the well rotatablely moving into sucker rod straight line motion up and down reciprocatingly by members such as cranks, be that the pumping unit application of force is greater than carrying on the sucker rod in uphill process, suffered moment of torsion of each transmission part and pulling force are all very big on the pumping unit, and the down-hole sucker rod when descending by deadweight and lifting counterweight; Suffered moment of torsion in each transmission unit of pumping unit and pulling force imbalance in a reciprocal process like this, it is big to produce acceleration, and output shaft of gear-box produces negative torque, increased the dynamic load of pumping unit, cause the shock and vibration of complete machine, equipment is had destruction, shorten the life time of pumping unit.Adopt pumping unit firm, that flexibility combines type of belt drive, though the peak value that acceleration and moment of torsion are occurred decreases, and the pumping unit power performance is increased, when the sucker rod polished rod is disconnected take off or occurs hysteresis and flexible strand break take off after, to cause that horse head or crossbeam brush up against body frame, cause serious accident.In addition, when the needs workover eration, the pumping unit upper-part influences operation, because of pumping unit is to be fixed on the basis, moves difficulty, brings certain difficulty to workover eration like this.
The purpose of this utility model is to avoid the deficiency that exists in the above-mentioned present technology, and a kind of two head sheave pumping units of involute-type that do not have slide beam are provided.
The purpose of this utility model can reach by the following technical programs: staking on well head, the support rotatingshaft of having put on the shelf, being equipped with two on this has the involute type wheel of spacing and symmetry and two isometrical wheels that spacing and symmetry are arranged is housed on this, and the arc grooving of assembling is arranged on two kinds of wheels.Wherein two involute type wheels connect with rope connector with wire rope, and two isometrical wheels with another group wire rope connect with rope hanger on the well head.
In such scheme, the most long-armed of involute wheel can be more than or equal to isometrical radius of taking turns; For the length of stroke that realizes designing, can adopt greater than the isometrical of semicircle and take turns.Constitute the flexible pumping unit of this nothing walking beam by such scheme, adopt original motor and speed reducer, and last crank and counterweight, make the involute type wheel rotation by rope connector on the crank and wire rope, drive is taken turns rotation with isometrical on the rotatingshaft, drive the down-hole sucker rod by another group wire rope again and do linear reciprocating motion, to ground, can realize this purpose to underground crude oil pumping.
The utility model is compared with above-mentioned prior art can have following effect: (1) this pumping unit is no beam pumping unit, with the transmission that is used as power of involute-type head sheave, use the isometrical replacement horse head of taking turns greater than semicircle, because involute is the reducing curve, constitute the involute-type head sheave of curved profile, can make oil pumping mechanism produce asymmetric circulation, can underspeed, the peak value of acceleration and output shaft torque, eliminate the negative torque of crankshaft, improve the service behaviour of pumping unit, had remarkable energy saving effect.(2) type of belt drive that adopts crankshaft and the little head sheave 9 usefulness flexible members of involute directly to be connected, connecting rod, crossbeam and walking beam have been removed, thereby reduced the inertial load that in doing plane complicated motion, produces by connecting rod and crossbeam, the complete machine stable drive, flexible member is regulated by stepless regulator, and every flexible member stand under load is even.Improve the operating life of complete machine, because this machine has removed connecting rod and crossbeam, alleviated the weight of complete machine, and fundamentally solved because polished rod disconnected takes off and lag behind, flexible member fractures afterwards, crossbeam or horse head brush up against fractureing of body frame and connecting rod and cause the generation of accidents such as the machine of turning over.(3) structural type of the two head sheaves of employing, need not get out of the way well head when having realized workover eration can operate, and has improved operating efficiency.
Accompanying drawing 1 is this pumping unit working principle structural drawing;
Accompanying drawing the 2, the 3rd, master, the left view of involute-type head sheave (9) and isometrical wheel the (10) on the transmission shaft 14 on Fig. 1;
Accompanying drawing 4 is structural drawing of rope connector 7 on Fig. 1.
Below in conjunction with accompanying drawing the utility model is further described:
Shown in accompanying drawing 1 and 3, adopt counterweight 6 and rope connector 7, wire rope (8,11) and rope hanger 12 on motor 2 on original pumping unit, speed reducer 5, the crank, staking 13 in addition on well head.Support 13 rotatingshaft 14 of having put on the shelf can be installed bearing on the axle 14; The involute type wheel 9 that spacing and symmetry are arranged on two being housed on the rotatingshaft 14 and being equipped with two on axle 14 has isometrical 10, the two kinds of wheels (9,10) of taking turns of spacing and symmetry to assemble with key pin and axle; The arc grooving that assembling is arranged on two kinds of wheels (9,10), involute type wheel 9 connects with rope connector 7 around wire rope 8 on two, and two wheels 10 connect formation involute-type pair head sheave pumping units around organizing wire rope 11 separately with rope hanger 12 on the well head.
In such scheme, isometrical size of taking turns 10 radiuses decides according to the down-hole stroke, and it and involute type wheel 9 are coaxial wheels; The the most long-armed of involute type wheel 9 can be more than or equal to wheel 10 radius, and can adopt the wheel 10 greater than semicircle.Involute type wheel 9 is positioned on wheel 10 the breach orientation during installation, so that both sides weight balancing on the axle 14, and satisfies the transmission of high pulling torque.The two head sheave pumping units of involute-type are to be sitting on the support 1, and motor 2 usefulness belts 3 drive speed reducer 5 work on the support 1; Brake 4 is arranged on the speed reducer 5, crank on the output shaft, counterweight 6 and rope connector 7 are arranged on the crank, make 9 rotations of involute wheel, drive axle 14 and follow rotation by wire rope 8; Make the down-hole sucker rod do straight line motion up and down reciprocatingly by the coaxial wheel 10 of going up.
Claims (2)
1, a kind of two head sheave pumping units of involute-type that are used for the oil field oil pumping comprise rope connector (7) and shackle line (8,11) and rope hanger (12) on motor (2), speed reducer (5), the crank, it is characterized in that:
A. staking (13) on well head, support (13) rotatingshaft (14) of putting on the shelf, being equipped with two on the axle (14) has the involute type wheel (9) of spacing and symmetry and two isometrical wheels (10) that spacing and symmetry are arranged is housed on axle (14), and the arc grooving of assembling is arranged on two kinds of wheels (9,10);
B. two involute type wheels (9) connect with rope connector (7) with wire rope (8), and two wheels (10) connect with rope hanger (12) on the well head with wire rope (11).
2, pumping unit according to claim 1 is characterized in that: the most long-armed of involute type wheel (9) can be more than or equal to the radius of wheel (10).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 98249542 CN2371367Y (en) | 1998-12-07 | 1998-12-07 | Involute double hoisting sheave pumping unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 98249542 CN2371367Y (en) | 1998-12-07 | 1998-12-07 | Involute double hoisting sheave pumping unit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2371367Y true CN2371367Y (en) | 2000-03-29 |
Family
ID=33994265
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 98249542 Expired - Lifetime CN2371367Y (en) | 1998-12-07 | 1998-12-07 | Involute double hoisting sheave pumping unit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2371367Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2008017194A1 (en) * | 2006-07-24 | 2008-02-14 | Chengdu Round Oil Extraction Equipment Limited | A rotating wheel and variable moment pumping unit driven by motor |
| US10408200B2 (en) | 2015-03-19 | 2019-09-10 | Yanan Liu | Flexible beam vertical pumping unit |
| CN110725671A (en) * | 2019-12-03 | 2020-01-24 | 山西省平遥减速器有限责任公司 | Damage-proof pollution-free bailing type oil pumping machine |
-
1998
- 1998-12-07 CN CN 98249542 patent/CN2371367Y/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2008017194A1 (en) * | 2006-07-24 | 2008-02-14 | Chengdu Round Oil Extraction Equipment Limited | A rotating wheel and variable moment pumping unit driven by motor |
| US10408200B2 (en) | 2015-03-19 | 2019-09-10 | Yanan Liu | Flexible beam vertical pumping unit |
| CN110725671A (en) * | 2019-12-03 | 2020-01-24 | 山西省平遥减速器有限责任公司 | Damage-proof pollution-free bailing type oil pumping machine |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CX01 | Expiry of patent term |