Motor reversing double-belt traction L-shaped structure oil pumping unit with power part arranged on ground

Abstract

The utility model relates to a motor reversing double-belt traction L-shaped structure oil pumping unit with a power part arranged on the ground, which comprises a base, the base comprises a first base and a second base, a stand column is arranged on the first base, and one side, close to the second base, of the stand column is hinged with the second base through a connecting plate; a motor, a brake, a gear box and belt traction wheels are arranged on the second base; each belt traction wheel comprises a first traction wheel and a second traction wheel which are arranged side by side; a load hanging rod is arranged on the side, away from the motor, of the stand column and connected with the first traction wheel through a first guide mechanism. The stand column is of a frame structure, a rectangular cavity is formed in the middle of the stand column, a balance weight part capable of doing reciprocating motion is arranged in the cavity of the stand column, and the balance weight part is connected with the second traction wheel through a second guide mechanism.

Description

Technical Field

[0001] This utility model relates to the field of oil extraction equipment technology, and in particular to an L-shaped oil pumping unit with a power unit located on the ground and a motor with reversing double belt traction. Background Technology

[0002] In the oilfield development sector, pumping units are one of the core pieces of equipment, and their performance directly affects the oilfield's extraction efficiency and economic benefits. Currently, the mainstream pumping units on the market mainly include beam pumping units and tower pumping units. Beam pumping units have a simple structure and low manufacturing cost, but they suffer from short strokes and low system efficiency, making them difficult to meet the needs of deep oil wells. In addition, beam pumping units experience significant reversing shocks, leading to a high equipment failure rate and high maintenance costs. Tower pumping units have long strokes and high load capacities, making them suitable for deep well extraction, but they are bulky, resulting in high transportation and installation costs, and their core components are often located at high altitudes, making maintenance difficult.

[0003] In recent years, the complex mechanical reversing structure and non-adjustable stroke of existing L-shaped pumping units have led to high failure rates and difficulty in meeting the deep well production needs of different well conditions. In addition, existing belt-driven pumping units mostly adopt a single belt design on one side, which has problems such as high risk of belt breakage and inconvenient maintenance. Utility Model Content

[0004] The purpose of this invention is to overcome the defects in the existing technology and provide an L-shaped oil pumping unit with a power unit located on the ground and a motor with reversing double belt traction.

[0005] To achieve the above objectives, the technical solution of this utility model is to design an L-shaped oil pumping unit with a power unit placed on the ground and a motor reversing double-belt traction, including a base. The base includes a first base and a second base. A column is provided on the first base, and a connecting plate is provided on the side of the column near the second base and is hinged to the second base.

[0006] A motor is provided on the second base, and a brake is provided on the second base position corresponding to one side of the drive shaft of the motor. A gearbox is provided on the second base corresponding to the side of the brake away from the motor. The input end of the gearbox is connected to the drive shaft of the motor. The gearbox has a pair of output ends in a direction perpendicular to the axial direction of the drive shaft. Each output end is provided with a belt traction wheel. Each belt traction wheel includes a first traction wheel and a second traction wheel arranged side by side.

[0007] A load-bearing rod is provided on the side of the column away from the motor, and the load-bearing rod is connected to the first traction wheel through a first guide mechanism;

[0008] The column has a frame structure, and the middle part of the column is a rectangular cavity. A counterweight that can reciprocate is provided in the cavity of the column. The counterweight is connected to the second traction wheel through a second guide mechanism.

[0009] In a further preferred embodiment, the first guiding mechanism includes a pair of first guide wheels disposed on the top of the column and a pair of second guide wheels disposed on the corresponding first base at the bottom of the column. Each first guide wheel and the second guide wheel directly below it are provided with a first traction belt. One end of each first traction belt is connected to a corresponding first traction wheel, and the other ends of the two first traction belts are simultaneously connected to the load hanging rod through a lock.

[0010] In a further preferred embodiment, the second guiding mechanism includes a pair of third guide wheels disposed at the top of the column and a pair of fourth guide wheels disposed on the side of the bottom of the column. Each of the third guide wheels and the fourth guide wheel directly below it is provided with a second traction belt. One end of each second traction belt is connected to a corresponding second traction wheel, and the other ends of the two second traction belts are simultaneously connected to the counterweight through a lock.

[0011] A further preferred technical solution is that a pair of pulleys are respectively provided on the upper long side and the lower long side of the counterweight and roll in cooperation with the corresponding inner surface of the column; a pair of pulleys are also provided on the upper short side and the lower short side of the counterweight and roll in cooperation with the corresponding inner surface of the column.

[0012] In a further preferred embodiment, a support rod is provided between the column and the second base, and is placed obliquely on the second base.

[0013] In a further preferred embodiment, the number of support rods is two, one end of each support rod is hinged to the column, and the other end is hinged to the second base. The column and the second base are respectively provided with second hinge seats, and the end of the support rod is connected to the second hinge seat by bolts and nuts.

[0014] A further preferred technical solution is that a support column is provided on the second base, and a third hinge seat is provided at the upper end of the support column. The column can be folded and installed on the second base and supported by the support column and the connecting plate.

[0015] The advantages and beneficial effects of this utility model are as follows: the L-shaped vertical pumping unit is compact and easy to transport; the L-shaped pumping unit adopts a folding design, which makes it small in size during transportation and unfolds into an L-shaped structure during installation, which can solve the problem of inconvenient transportation and installation of tower pumping units to a certain extent; it combines the advantages of tower pumping units and L-shaped vertical pumping units, and has the characteristics of long stroke, high load, and easy transportation and maintenance. At the same time, it adopts a two-way four-belt traction system, which effectively improves the safety and reliability of the equipment. Attached Figure Description

[0016] Figure 1 The axial side of this utility model Figure 1 ;

[0017] Figure 2 The axial side of this utility model Figure 2 ;

[0018] Figure 3 Axonometric view of a portion of this utility model Figure 1 ;

[0019] Figure 4 Axonometric view of a portion of this utility model Figure 2 ;

[0020] Figure 5 The axial side of this utility model Figure 3 ;

[0021] Figure 6 This is an axonometric view of the present invention in its folded state;

[0022] In the diagram: 10, base; 11, first base; 12, second base; 20, column; 21, connecting plate; 30, first guide mechanism; 31, first guide wheel; 32, first traction belt; 33, second guide wheel; 40, second guide mechanism; 41, third guide wheel; 42, second traction belt; 43, fourth guide wheel; 50, counterweight; 60, support rod; 70, belt traction wheel; 80, gearbox; 90, brake; 100, motor; 110, support column; 120, load-bearing hanging rod. Detailed Implementation

[0023] The specific embodiments of this utility model will be further described below with reference to the accompanying drawings and examples. The following examples are only used to more clearly illustrate the technical solution of this utility model and should not be construed as limiting the scope of protection of this utility model.

[0024] like Figure 1-5As shown, an L-shaped pumping unit with a power unit located on the ground and a motor with dual-belt traction includes a base 10. The base includes a first base 11 and a second base 12. A column 20 is provided on the first base 11. The side of the column 20 closest to the second base 12 is hinged to the second base 12. The first base 11 and the column 20 can be tilted towards the hinged side, so that the first base 11 and the column 20 are stacked on the second base 12, forming a folding structure between the first base 11 and the column 20 and the second base 12, which facilitates the transportation and disassembly of the base 10 and the column 20.

[0025] The column 20 has a pair of connecting plates 21 near the second base 12 on one side. Each connecting plate 21 has a connecting hole. The second base 12 has a first hinge seat corresponding to the connecting plate 21. The connecting plate 21 and the first hinge seat are connected by bolts and nuts. At the same time, below the hinge position between the column 20 and the second base 12, the first base 11 and the second base 12 are connected by bolts and nuts. Thus, when the bolts and nuts between the first base 11 and the second base 12 are tightened with the bolts and nuts between the first base 11 and the column 20, the first base 11, the second base 12, and the column 20 are simultaneously fixedly connected, so that the column 20 can be fixed on the base 10.

[0026] A motor 100 is mounted on the second base 12. The drive shaft of the motor 100 faces the column 20. A brake 90 is mounted on the second base 2 corresponding to the drive shaft of the motor 100. The brake 90 is a friction brake, which can be classified as a disc brake, an externally clamping brake, an internally expanding shoe brake, a band brake, a combined band brake, a double-shoe brake, a multi-shoe brake, a simple band brake, a single-disc brake, a multi-disc brake, a fixed caliper brake, a floating brake, etc. A gearbox 80 is mounted on the second base 12 away from the motor 100. The input end of the gearbox 80 is connected to the drive shaft of the motor 100. The gearbox 80 has a pair of output ends in a direction perpendicular to the axial direction of the drive shaft. The pair of output ends are symmetrically arranged with respect to the axis of the input shaft. Each output end has a belt traction wheel 70. Each belt traction wheel 70 includes a first traction wheel and a second traction wheel arranged side by side.

[0027] The motor 100, brake 90, gearbox 80, and belt traction pulley 70 constitute a power and braking assembly. The motor 100 converts electrical energy into kinetic energy and drives the belt traction pulley 70 to reciprocate through the gearbox 80, increasing the torque to provide driving force for the pumping unit. At the same time, the brake 90 uses frictional torque to reduce the speed of the drive shaft or stop its rotation, thereby decelerating, stopping, or keeping the moving parts (or moving machinery) in a stopped state, thus realizing the operation and braking of the pumping unit.

[0028] The load hanging rod 120 is provided on the side of the column 20 away from the motor 100. The load hanging rod 120 is connected to the first traction wheel through the first guide mechanism 30. The first guide mechanism 30 includes a pair of first guide wheels 31 provided on the top of the column 20 and a pair of second guide wheels 33 provided on the first base 11 under the column 20. Each first guide wheel 31 and the second guide wheel 32 directly below it are provided with a first traction belt 32. One end of each first traction belt 32 is connected to one of the first traction wheels, and the other ends of the two first traction belts 32 are connected to the load hanging rod 120 through a lock.

[0029] The column 20 is a frame structure with a rectangular cavity in the middle. A counterweight 50 capable of reciprocating motion is provided inside the cavity. The counterweight 50 is connected to the second traction wheel via a second guide mechanism 40. The second guide mechanism 40 includes a pair of third guide wheels 41 disposed at the top of the column and a pair of fourth guide wheels 43 disposed on the side of the bottom of the column 20. Each third guide wheel 41 and the fourth guide wheel 43 directly below it are provided with a second traction belt 42. One end of each second traction belt 42 is connected to one of the second traction wheels, and the other ends of the two second traction belts 42 are simultaneously connected to the counterweight 50 via a lock.

[0030] A pair of pulleys are provided on the upper and lower long sides of the counterweight 50, respectively, and roll in cooperation with the inner surface of the corresponding column 20. A pair of pulleys are also provided on the upper and lower short sides of the counterweight 50, and roll in cooperation with the inner surface of the corresponding column 20. This can prevent the counterweight 50 from rubbing against the column 20 and improve work efficiency.

[0031] A support rod 60 is also provided between the column 20 and the second base 12, and is inclined on the second base 12. In one embodiment, there are two support rods 60. The two ends of each support rod 60 are respectively hinged to the column 20 and the second base 12. The column 20 and the second base 12 are provided with second hinge seats. The end of the support rod 60 is connected to the second hinge seat by bolts and nuts. The support rod 60 can provide auxiliary support for the column 20, increase the rigidity of the column 20, and prevent the column 20 from tipping over.

[0032] like Figure 6 As shown, a support column 110 is also provided on the second base 12. The upper end of the support column 110 is provided with a third hinge seat. When the connecting bolts and nuts of the first base 11 and the second base 12 are loosened, the column 20 can rotate around the first hinge seat on the second base 12, so that the column 20 folds on the second base 12. The second hinge seat on the column 20 can engage with the third hinge seat on the support column 110 and then be connected by bolts and nuts. In this way, the column 20 is set parallel to the second base 12 under the support of the connecting plate 21 and the support column 110, so that the column 20 folds on the second base 12.

[0033] The oil pumping unit is mainly divided into two parts: the main unit and the column. In normal operation, it has an L-shaped structure. The main unit includes core power components such as the second base 12, motor 100, gearbox 80, brake 90, and belt traction pulley 70; the column includes the first base 11, column 20, counterweight module, first guide module, and second guide module.

[0034] The main unit is mounted on the second base 12 near the ground, which makes daily maintenance and repairs convenient as it eliminates the need for climbing, significantly improving the reliability and economy of the equipment.

[0035] The system employs a bidirectional four-belt traction system, with one end of each belt connected to the belt traction wheel of the main unit. The other ends of two belts pass through the first guide wheel 31 and the second guide wheel 33 in sequence and are connected to the load hanging rod 120. The other ends of the other two belts pass through the third guide wheel 41 and the fourth guide wheel 43 in sequence and are connected to the counterweight module. The bidirectional four-belt traction system has a high safety factor, long service life, and large load-bearing capacity. The elastic buffer of the belts themselves effectively reduces the impact of reversing, ensuring the smooth operation of the downhole equipment.

[0036] The counterweight module is equipped with a pulley structure on its periphery, which can slide up and down along the track formed by the column 20.

[0037] The main unit and the column unit adopt a folding design. The column unit can rotate through the connection point with the main unit. The pumping unit can be folded into a rectangular structure during transportation and storage. When the pumping unit is in oil production, it unfolds into an L-shaped structure and its overall stability is enhanced by two support rods.

[0038] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of the present utility model, and these improvements and modifications should also be considered within the protection scope of the present utility model.

Claims

1. A pumping unit of L-shaped structure with motor and double-belt traction with partial placement of power parts on the ground, comprising a base, characterized in that, The base comprises a first base and a second base, the first base is provided with a stand column, the stand column is hinged to the second base through a connecting plate on the side close to the second base; The second base is provided with a motor, the drive shaft of the motor is provided with a brake on one side, the brake is provided with a gear box on the side away from the motor, the input end of the gear box is connected with the drive shaft of the motor, the gear box is provided with a pair of output ends in the direction perpendicular to the axial direction of the drive shaft, each output end is provided with a belt traction wheel, each belt traction wheel comprises a first traction wheel and a second traction wheel arranged side by side; A load hanging rod is arranged on the side of the stand column away from the motor, and the load hanging rod is connected with the first traction wheel through a first guide mechanism; The stand column is a frame structure, the middle part of the stand column is a rectangular cavity, a counterweight is arranged in the cavity of the stand column and can reciprocate, and the counterweight is connected with the second traction wheel through a second guide mechanism.

2. A power partially ground based electric motor commutated dual belt hauled L shaped structure's pumping unit according to claim 1, characterized in that, The first guide mechanism comprises a pair of first guide wheels arranged at the top of the stand column and a pair of second guide wheels arranged on the corresponding first base at the bottom of the stand column, one first guide wheel and the second guide wheel directly below are provided with a first traction belt, one end of each first traction belt is connected with a corresponding first traction wheel, and the other ends of the two first traction belts are connected with the load hanging rod through a lock.

3. A power partially ground based electric motor commutated dual belt hauled L shaped structure's pumping unit according to claim 1, characterized in that, The second guide mechanism comprises a pair of third guide wheels arranged at the top of the stand column and a pair of fourth guide wheels arranged on the side surface of the stand column at the bottom, each third guide wheel and the fourth guide wheel directly below are provided with a second traction belt, one end of each second traction belt is connected with a corresponding second traction wheel, and the other ends of the two second traction belts are connected with the counterweight through a lock.

4. A power partially ground based electric motor commutated dual belt hauled L shaped structure's pumping unit according to claim 1, characterized in that, A pair of pulleys are arranged on the upper long side and the lower long side of the counterweight respectively and roll with the corresponding inner side surface of the stand column, and a pair of pulleys are also arranged on the upper short side and the lower short side of the counterweight and roll with the corresponding inner side surface of the stand column.

5. A power partially ground based electric motor commutated dual belt hauled L shaped structure's pumping unit according to claim 1, characterized in that, A support rod is further arranged between the stand column and the second base and inclined on the second base.

6. A power partially ground based electric motor commutated dual belt hauled L shaped structure's pumping unit according to claim 5, characterized in that, The number of the support rod is two, one end of each support rod is hinged to the stand column, the other end is hinged to the second base, a second hinge seat is arranged on the stand column and the second base respectively, and the end of the support rod is connected with the second hinge seat through a bolt and a nut.

7. A power partially ground based electric motor commutated dual belt hauled L shaped structure's pumping unit according to claim 6, characterized in that, A support column is further arranged on the second base, a third hinge seat is arranged on the upper end of the support column, and the stand column can be foldably arranged on the second base and supported through the support column and the connecting plate.

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