CN204691738U - A kind of two stationary annular tooth bar tower-type pumping unit - Google Patents

Abstract

The utility model relates to a kind of two stationary annular tooth bar tower-type pumping unit, and it is primarily of motor, reducer, reversing gear bracket, round frame, annular rack, annular gathering sill, pinion, frame, wire rope, crown sheave, polished rod eye, balance weight composition.Frame is installed on ground, and frame bilateral symmetry is placed with the annular gathering sill being fixed to ground, and annular rack is fixed on annular gathering sill; Described round frame is positioned over inside frame, and can be pumped along frame by vertical wheel, realizes oil pumping operation; Round frame is divided into two-layer; Described reversing gear bracket is placed and is come and gone frame top, and by horizontal roller can in round frame bilateral reciprocation, realize commutation; Reversing gear bracket is divided into two-layer, and top is fixed with reducer, and below is fixed with motor, middle by belt transmission.The utility model two annular rack symmetries are installed on frame both sides, reasonable stress, and supporting capacity is large; Belt transmission is flexible driving, has the effect of buffering absorbing; Structure is simply novel.

Description

A Double Fixed Ring Rack Tower Pumping Unit

technical field

The utility model relates to a tower pumping unit with double fixed ring racks, which belongs to the field of oil production machinery and equipment in the petroleum and natural gas industry.

Background technique

The pumping unit is the most important equipment for oilfield mechanical oil recovery. With the continuous development of oil and gas resources, the depth of the oil layer is increasing, and the pumping unit is gradually developing in the direction of large-scale and energy-saving. At present, in the rod-type oil production machinery and equipment in the oil field, there are mainly beam pumping units, chain pumping units, hydraulic pumping units, long ring rack test pumping units and the like. The beam pumping unit has the disadvantages of heavy weight, high energy consumption, short stroke, and large structural size when realizing a long stroke; the chain pumping unit has the disadvantages of poor reliability, complicated reversing mechanism, special chain links and spindle pins are easy to break , not suitable for heavy loads and other disadvantages; the hydraulic pumping unit has the disadvantages that the hydraulic system is too complicated, which increases the failure rate of hydraulic components, and the leakage of hydraulic oil inevitably causes pollution and other disadvantages; Chinese patent 200920019023.1 discloses a It is a utility model of a long ring rack pumping unit, which belongs to a single rack pumping unit; the motor and the reducer are connected by a belt, and the reducer and the driving wheel will slide horizontally when reversing. When reversing, since the reducer will move horizontally with the drive wheel, while the motor is fixed, this will cause the belt to be very tight when the reducer moves to the far left or right end with the drive wheel, and in the middle The belt is very loose in position, which will have a great impact on the working efficiency and stability of the pumping unit; the ring rack and the balance slider reciprocate up and down to drive the sucker rod to realize the oil pumping operation. , the rack will be very high, and the stability of the pumping unit will deteriorate.

Contents of the invention

The purpose of this utility model is to overcome the deficiencies of the prior art and provide a double-fixed ring rack tower pumping unit, which has two ring racks and is symmetrically fixed on the ground, the motor and the reducer Installed in the reversing frame and move together with the reversing frame and the reciprocating frame, the motor and the reducer can be used as a part of the balance weight, and the up and down reciprocating movement of the reciprocating frame realizes the oil pumping operation. It realizes the advantages of low frame height and high reliability during long stroke, and solves the problem of belt tension change when belt transmission is used, and improves the efficiency of the pumping unit.

The technical scheme adopted in the utility model is:

The utility model is a double-fixed annular rack tower pumping unit, which is mainly composed of a motor, a reducer, a reversing frame, a reciprocating frame, an annular rack, an annular guide groove, a pinion, a frame, a steel wire rope, a sky wheel, a suspension Rope device, balance weight composition. The frame is installed on the ground, and ring-shaped guide grooves fixed to the ground are placed symmetrically on both sides of the frame, and the ring rack is fixed on the ring-shaped guide groove; the shuttle frame is placed inside the frame, and can be moved along the vertical rollers The frame reciprocates up and down to realize the oil pumping operation; the reciprocating frame is divided into two layers, the reversing frame is placed on the top, and the balance weight is placed below; Reciprocating motion realizes commutation; the commutation frame is divided into two layers, the upper part is fixed with a reducer, the lower part is fixed with a motor, and the middle is driven by a belt. There are 4 horizontal rollers on the upper and lower sides of the reversing frame, and 4 vertical rollers on the left and right sides of the reciprocating frame.

The rotary motion output by the motor is transmitted to the reducer through the belt. Driven by the output shaft of the reducer, the pinion rotates and drives the reducer, guide wheel, motor, reversing frame, and reciprocating frame to reciprocate up and down. When the left side of the ring rack rotates clockwise, the reciprocating frame moves upward, and the polished rod moves downward, which is a downstroke; after reversing, the pinion rotates clockwise on the right side of the ring rack, then the reciprocating frame moves downward, and the polished rod moves downward. The upward movement is an upstroke. The guide wheel with a slightly larger diameter is coaxially installed with the pinion and can rotate freely, but is constrained by the annular guide groove. Under the constraints of the guide wheel and the annular guide groove, the pinion and the ring rack can always maintain good meshing. While the pinion is engaged in the upper and lower semicircular parts of the ring rack, the commutation frame moves laterally to realize the reversing. The upper beam of the reciprocating frame is connected with a steel wire rope that goes around the sky wheel, and the oil pump is driven by the rope hanger and the polished rod to realize the oil pumping operation.

Compared with the prior art, the utility model has the following advantages:

1. The ring rack is fixed on the ground, and the pinion drives the reciprocating frame to reciprocate up and down, which greatly reduces the height of the pumping unit and makes it easy to realize long strokes; 2. Two ring racks are symmetrically installed on both sides of the frame, and the force is reasonable , large bearing capacity; 3. The motor and reducer move up and down with the reciprocating frame, which can be used as a part of the counterweight, and there is no problem of belt tightness change like the long ring rack pumping unit, which improves the efficiency of the pumping unit; 4. The belt transmission is a flexible transmission, which has the function of buffering and absorbing vibration, which can effectively protect the motor and improve the service life of the motor. 5. Simple and novel structure.

Description of drawings

Fig. 1 is a structural schematic diagram of a double-fixed annular rack tower pumping unit of the present invention;

Fig. 2 is a schematic diagram of the right view structure of Fig. 1;

In the figure: 1. Rack, 2. Reciprocating frame, 3. Polished rod, 4. Rope hanger, 5. Reversing frame, 6. Steel wire rope, 7. Sky wheel, 8. Ring rack, 9. Ring guide groove, 10. Horizontal roller, 11. Reducer, 12. Vertical roller, 13. Belt, 14. Balance weight, 15. Motor, 16. Pinion, 17. Guide wheel.

Detailed ways

Below in conjunction with accompanying drawing, the technical scheme of the utility model is described in detail:

As shown in Fig. 1 and Fig. 2, a double-fixed ring rack tower pumping unit of the present invention is mainly composed of a motor 15, a reducer 11, a reversing frame 5, a reciprocating frame 2, a ring rack 8, and a ring guide Groove 9, pinion 16, frame 1, wire rope 6, sky wheel 7, rope hanger 4, balance weight 14 form. The frame 1 is installed on the ground, and the two sides of the frame 1 are symmetrically placed with an annular guide groove 9 fixed to the ground, and the ring rack 8 is fixed on the annular guide groove 9; the reciprocating frame 2 is placed inside the frame 1 , and can reciprocate up and down along the frame 1 through the vertical roller 12 to realize the oil pumping operation; the reciprocating frame 2 is divided into two layers, the reversing frame 5 is placed on the top, and the balance weight 14 is placed below; the reversing frame 5 is placed and reciprocated Frame 2 top, and can reciprocate along reciprocating frame 2 left and right by horizontal roller 10, realize commutation; There are respectively 4 horizontal rollers 10 on the upper and lower sides of the reversing frame 5, and 4 vertical rollers 12 are respectively arranged on the left and right sides of the reciprocating frame 2.

The rotary motion output by the motor 15 is transmitted to the reducer 11 through the belt 13. Driven by the output shaft of the reducer 11, the pinion 16 makes a rotary motion, driving the reducer 11, the guide wheel 17, the motor 15, the commutator frame 5, the reciprocating The frame 2 reciprocates up and down; if the pinion 16 rotates clockwise on the left side of the ring rack 8, the reciprocating frame 2 moves upward, and the polished rod 3 moves downward, which is a downstroke; 8. When the right side rotates clockwise, the reciprocating frame 2 moves downward, and the polished rod 3 moves upward, which is an upstroke. The guide wheel 17 with slightly larger diameter is coaxially installed with the pinion 16 and can rotate freely, but is restricted by the annular guide groove 9. Under the constraints of the guide wheel 17 and the annular guide groove 9, the pinion 16 and the ring rack 8 are always Able to maintain a good mesh. When the pinion 16 engages with the upper and lower semicircular parts of the ring rack 8, the reversing frame 5 moves laterally to realize reversing. The upper beam of the reciprocating frame 2 is connected with the wire rope 6 that walks around the sky wheel 7, and drives the oil pump by the rope hanger 4 and the polished rod 3 to realize the oil pumping operation.

Claims (2)

1. a two stationary annular tooth bar tower-type pumping unit, primarily of motor (15), reducer (11), reversing gear bracket (5), come and go frame (2), annular rack (8), annular gathering sill (9), pinion (16), frame (1), wire rope (6), crown sheave (7), polished rod eye (4), balance weight (14) forms, it is characterized in that, described frame (1) is installed on ground, frame (1) bilateral symmetry is placed with the annular gathering sill (9) being fixed to ground, annular rack (8) is fixed on annular gathering sill (9), described round frame (2) is positioned over frame (1) inner side, and can be pumped along frame (1) by vertical wheel (12), coming and going frame (2) is divided into two-layer, and reversing gear bracket (5) is placed in top, and balance weight (14) is placed in below, described reversing gear bracket (5) is placed and round frame (2) top, and along round frame (2) bilateral reciprocation, can realize commutation by horizontal roller (10).

2. the two stationary annular tooth bar tower-type pumping unit of one according to claim 1, it is characterized in that, reversing gear bracket (5) is divided into two-layer, and top is fixed with reducer (11), below is fixed with motor (15), middle by belt (13) transmission; Reversing gear bracket (5) respectively has 4 horizontal rollers (10) in both sides up and down, and coming and going frame (2) each side has 4 vertical wheel (12).