CN2249821Y

CN2249821Y - Tower-rocker-arm above-setting two action long range oil sucker

Info

Publication number: CN2249821Y
Application number: CN 95210384
Authority: CN
Inventors: 王晓东
Original assignee: 王自治
Priority date: 1995-05-05
Filing date: 1995-05-05
Publication date: 1997-03-19
Anticipated expiration: 2005-05-05

Abstract

The utility model belongs to the field of a mechanical device, which relates to a tower-rocker-arm above-setting double-action long-range oil sucker. The utility model is supported by a tower, is provided with a pulley transmission system and a crown block system, and has double actions of a long stroke pumping unit and a pumping mast. A speed reducer and a motor are arranged on a rocker arm, which causes that the utility model has the double actions of transmission and balance weight. Besides, the utility model also has the performances of flood prevention and theft prevention. The utility model is a pumping device which has the advantages of novel design, simple structure, reliable performance, energy saving and high efficiency.

Description

Pylon rocking arm overhead double acting long stroke pumping unit

The utility model relates to a kind of plant equipment, especially for the oil pumper of oil field machinery oil.

Oil pumper is the ground installation of sucker-rod pumping, in order to increase length of stroke, improve the oil pumping effect, tower shelf type oil pumping machine has had bigger development, makes length of stroke reach 7-9m, the height of pylon is generally at 12-14m, although so high pylon is arranged, when workover treatment, still need be at the special-purpose derrick of the upright workover treatment of well head, because the mechanical oil recovery well operations is frequent, the resettlement of derrick and to stand up workload very big.The common practice is that the derrick to operation troop outfit sufficient amount is stood up and moved by professional contingent, and is special in the work of preparing of constructing, and is furnished with special lifting handling equipment.In order to prevent the generation of external interference and the accident of falling the derrick, operation finishes must in time reclaim or to move another mouthful to aboveground, runs into weather, road and vehicle problem, and operation will be affected.

In addition, the crank connecting link changement is used for oil pumper, and technology is all very ripe, but reducer, crank and motor all are to be fixed on the base, and self only plays drive disk assembly.Thereby all to add crank spin balancing mechanism.Type is big more, and weight increases.Also owing to place low position not possess flood control, theftproof performance in certain areas.

The purpose of this utility model is that a kind of " pylon rocking arm overhead double acting long stroke pumping unit " will be provided, because it has the function of workover treatment derrick, thereby the imagination of a derrick of a bite well is achieved.In addition, reducer, crank and motor are placed on the rocking arm, can not only improve its behavior in service, and play the double action of transmission and counterweight, cancelled crank balance counterweight in the original four-bar mechanism, reached the purpose of material-saving loss of weight significantly.Next is, because reducer and motor are in the high-order bit, and become dynamically in static state, has flood control and antitheft effect again.

The purpose of this utility model is achieved like this: be to have increased a height (H) on pylon (1) again, there is an assembly pulley (overhead traveling crane) (19) in last the place ahead, its centering well head center, axle center, reducer (10) and motor (13) are fixed on the rocking arm (3) that supports with pylon (1), (15) one on connecting rod connects with crank (11), and the other end connects with base (2).

Double acting oil pumper described in the utility model, fixed pulley group (6) that its oil pumper transmission is used and directive wheel (5) have wheel carrier separately, there is a bearing pin (17) guiding wheel carrier lower end, connect by little rocking bar (8) between running block (7) and the rocking arm, the counterweight formula of moving about tandem-driving bogie (4) adjustable range has been cancelled the crank balance counter weight device between A, B.There is the Cable chute (23) of some groups of symmetries on base (2) left outer the right.Polished rod eye (24) has taked the duplex type head respectively by band snakelike tank pressing plate bindiny mechanism with the type of attachment of steel wire rope head.

Double acting oil pumper described in the utility model, the overhead traveling crane of its operating system (19) center and well head center have a directive wheel (20) at tower center line top, and a directive wheel (21) is arranged on base (2).

Concrete structure of the present utility model is provided by following embodiment and accompanying drawing thereof.

Accompanying drawing 1 is the lateral view of pylon rocking arm overhead double acting long stroke pumping unit.

Accompanying drawing 1 as can be seen, this oil pumper comprises a pylon (1), base (2).Be on the rocking arm (3) of support reducer (10), crank (11), motor (13), electrical machine belt pulley (14) and connecting rod (15) to be arranged with pylon (1).When motor driving reducer rotated, crank (11) rotated, and drove upper and lower the shaking of rocking arm (3), by the transmission of wire rope (9), made polished rod eye (24) do upper and lower reciprocating motion, realized oil pumping machine oil pumping work.

As can be seen from Figure 1, at tower top an overhead traveling crane (19), traveling system (18), directive wheel (20) (21) and wire rope (22) are arranged.When workover treatment, at first stop oil pumper, after the unloading, directive wheel (5) and wheel carrier under the effect of bearing pin (17) in the impouring pylon.Polished rod eye (24) and wire rope (9) are attached to the front of pylon (1) simultaneously.Working rig pendulum is pulled out order reeve by cable-feeding to working rig cylinder wire rope (22) after the suitable distance in oil pumper back.Wire rope is put on traveling system (18) by behind the directive wheel (21) (20), can play the lower tubular column job execution.

Extract wire rope (22) again out after job execution is intact, can recover oil pumping.At first directive wheel (5) is resetted and fixing, again polished rod eye (24) and sucker rod are hung, can open to take out and resume production.

Claims

1, a kind of pylon rocking arm overhead double acting long stroke pumping unit with crank-link mechanism, it is characterized in that on the basis of oil pumper pylon (1), having increased a height (H), there is an Overhead travelling crane system (19) in the place ahead, top, reducer in the crank connecting link changement (10) motor (13) is installed on the rocking arm (3), and connecting rod (15) two connects with base (2) crank (11) respectively.

2, pylon rocking arm overhead double acting long stroke pumping unit according to claim 1, it is characterized in that: a bearing pin (17) is arranged at the wheel carrier bottom of front jockey wheel (5).

3, according to wanting profit to require 1 described pylon rocking arm overhead double acting long stroke pumping unit, it is characterized in that: there are two directive wheels (20), (21) in the underground work system.

4, pylon rocking arm overhead double acting long stroke pumping unit according to claim 1, it is characterized in that: connect by little rocking bar (8) between running block (7) and the rocking arm (3), the counterweight formula of moving about tandem-driving bogie (4) adjustable range has been cancelled the crank balance counter weight device between A, B.