Motor driving equipment of oil pumping unit

Abstract

The utility model relates to the technical field of oil pumping units, and particularly discloses oil pumping unit motor driving equipment which comprises a speed reducer and a mounting table, a motor and a gear box are arranged on the mounting table, an inner gear sleeve is rotatably arranged in the gear box, an output shaft of the motor is connected with the inner gear sleeve, and the output shaft of the motor is connected with the speed reducer. One end of the inner gear sleeve extends out of the gear box, the end part of the input shaft of the speed reducer is connected with an outer gear shaft matched with the inner gear sleeve, and the mounting table is provided with a motor base adjusting mechanism connected with the motor and the gear box. Through the arrangement of the outer gear shaft, the inner gear sleeve and the motor base adjusting mechanism, the device is convenient to maintain and disassemble, the threaded rod can be rotated by rotating the rotary handle, the movable block is driven to move along the axis of the threaded rod, then the movable plate is moved, the motor and the gear box are moved, the outer gear shaft is separated from the inner gear sleeve, and the device is convenient to maintain and disassemble. And the speed reducer can be separated from the motor.

Description

Technical Field

[0001] The utility model relates to the technical field of oil pumping units, in particular to an oil pumping unit motor driving device. Background Art

[0002] The traditional oil pumping unit transmission mode is mainly based on belt drive. Especially in the middle and late stages of oil field production and development, the oil pumping unit needs to be adjusted to a lower stroke frequency due to the working conditions of the oil pumping unit and the downhole fluid supply capacity. While reducing the motor speed, in order to increase the belt drive speed ratio, the small pulley of the motor is made too small to drive the large pulley on the reduction box to rotate, which leads to a decrease in the belt transmission capacity. Especially during the upper stroke of the oil pumping unit, the instantaneous drag torque increases, which sometimes causes the belt to slip or even break.

[0003] After searching, the utility model patent with publication number CN217282550U discloses a connection structure between a permanent magnet synchronous direct-drive motor and a reducer for a beam pumping unit. Through the setting of a coupling sleeve, the stator and the rotor are directly made on a special ball cage coupling sleeve, and the rotating shaft of the reducer is directly extended into the ball cage coupling sleeve inside the rotor, saving installation space. The belt connection link of the motor can be directly removed without adding any equipment, thereby directly modifying the beam pumping unit and ensuring that the motor can still operate normally without being concentric with the reducer. This connection method can effectively improve the motor driving efficiency, save maintenance costs, and ensure reliable operation.

[0004] However, the stator and rotor are made directly on a special ball cage coupling sleeve, and the shaft of the reducer is directly extended into the ball cage coupling sleeve inside the rotor. It is inconvenient to repair and disassemble the device, and the transmission ratio adjustment is relatively limited. It is also affected by shaft deviation and vibration force, resulting in reduced efficiency and even possible damage to the internal parts of the motor. In order to solve the above problems, we propose a pumping unit motor drive device. Utility Model Content

[0005] The purpose of the utility model is to provide an oil pump motor driving device to solve the problems that the device is inconvenient to repair, maintain and disassemble, the transmission ratio adjustment is relatively limited, and it will be affected by shaft deviation and vibration force, resulting in reduced efficiency and even possible damage to the internal parts of the motor.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a pumping unit motor drive device, including a reducer and a mounting platform, a motor and a gear box are arranged on the mounting platform, the end of the motor close to the output shaft is fixedly connected to the gear box, an internal gear sleeve is rotatably arranged in the gear box, the internal gear sleeve is connected to the output shaft of the motor, one end of the internal gear sleeve extends out of the gear box, the end of the reducer input shaft is connected to an external gear shaft adapted to the internal gear sleeve, and a motor base adjustment mechanism connected to the motor and the gear box is arranged on the mounting platform.

[0007] According to the above technical solution, the motor base adjustment mechanism includes a fixed plate fixedly connected to the mounting platform, a movable plate is slidably mounted on the upper end of the fixed plate, the upper end of the movable plate is fixedly connected to the motor and the gear box, and a movable component and a locking component are provided between the fixed plate and the movable plate.

[0008] According to the above technical solution, the locking assembly includes baffles symmetrically arranged on the upper end of the fixed plate, the movable plate is slidably arranged between the baffles, a locking hole is penetrated on the side wall of the baffle on one side, and a threaded hole corresponding to the locking hole is provided on the side wall of the baffle on the other side, and a through hole matching the locking hole and the threaded hole is penetrated on the side wall of the movable plate adjacent to the baffle.

[0009] According to the above technical solution, an installation groove is provided at the upper end of the fixed plate, and the movable assembly includes a movable block fixedly connected to the bottom of the movable plate, a threaded rod screwed to the movable block is rotatably assembled in the installation groove, and a rotary handle connected to the threaded rod is rotatably assembled on the fixed plate.

[0010] According to the above technical solution, the inner wall of the mounting groove is provided with a mounting hole, the rotary handle is rotatably assembled on the upper end of the fixed plate, the bottom of the rotary handle extends into the mounting hole and is fixedly connected to a worm, and the end of the threaded rod is fixedly connected to a worm wheel meshing with the worm.

[0011] According to the above technical solution, a gear set is provided in the gear box, and the gear set is connected to the output shaft of the motor and the internal gear sleeve respectively.

[0012] According to the above technical solution, the teeth of the inner gear sleeve and the outer gear shaft are close to each other at the ends thereof in an arc shape.

[0013] According to the above technical solution, one end of the inner gear sleeve away from the reducer extends to the outside of the gear box and is fixedly connected to a rotating disk.

[0014] According to the above technical solution, a coupling is connected between the reducer input shaft and the external gear shaft.

[0015] Compared with the prior art, the beneficial effects of the utility model are:

[0016] The utility model is convenient for maintenance and disassembly of the device by providing an external gear shaft, an internal gear sleeve and a motor base adjustment mechanism. By rotating the rotary handle, the threaded rod can be rotated to drive the moving block to move along the axis of the threaded rod, and then the moving plate can be moved, so that the motor and the gear box can be moved, and the external gear shaft can be disengaged from the internal gear sleeve, and the reducer can be separated from the motor. Through the transmission of the gear set in the gear box, a larger transmission ratio can be achieved, and the transmission requirements can be met more flexibly, preventing the influence of shaft deviation and vibration force, which will lead to a decrease in efficiency and even possible damage to the internal parts of the motor.

[0017] The utility model is provided with a locking assembly. After the movable plate is moved to a suitable position, a bolt is inserted into the locking hole and a through hole opposite to the locking hole, and the threaded end of the bolt is screwed into the threaded hole, so that the bolt can fix the movable plate and the baffle, and then fix the motor and the gear box, thereby improving the stability of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall structure of the utility model oil pumping unit motor driving device;

[0019] Figure 2 It is a schematic diagram of the moving assembly and the locking assembly of the utility model;

[0020] Figure 3 It is a cross-sectional view of the inner gear sleeve and the outer gear shaft of the utility model;

[0021] Figure 4 This is the connection diagram of the mobile component of the utility model

[0022] Figure 5 It is a schematic diagram of the mobile block of the utility model.

[0023] In the figure: 1. reducer; 2. mounting table; 3. motor; 4. gear box; 5. inner gear sleeve; 6. outer gear shaft; 7. motor base adjustment mechanism; 71. fixed plate; 72. moving plate; 73. moving assembly; 731. moving block; 732. threaded rod; 733. rotary handle; 734. worm; 735. worm wheel; 74. locking assembly; 741. baffle; 742. locking hole; 743. threaded hole; 744. through hole; 8. turntable; 9. gear set; 91. driving cylindrical gear; 92. transmission cylindrical gear; 93. driven gear; 10. coupling. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0025] See also Figure 1-5 The utility model provides a technical solution: an oil pump motor driving device, including a reducer 1 and a mounting platform 2, on which a motor 3 and a gear box 4 are arranged, and the end of the motor 3 is fixedly connected to the gear box 4. Through the gear transmission in the gear box 4, a larger transmission ratio can be achieved, which can more flexibly meet the transmission requirements and prevent the influence of shaft deviation and vibration force, which may lead to a decrease in efficiency and even damage to the internal parts of the motor.

[0026] An internal gear sleeve 5 is rotatably arranged inside the gear box 4. The output shaft of the motor 3 extends deep into the gear box 4 and is connected to the internal gear sleeve 5 through gears. The output shaft of the motor 3 can drive the internal gear sleeve 5 to rotate. One end of the internal gear sleeve 5 extends out of the gear box 4. An external gear shaft 6 matched with the internal gear sleeve 5 is connected to the end of the input shaft of the reducer 1. The teeth of the external gear shaft 6 have the same shape as the teeth of the internal gear sleeve 5. When using this device, the external gear shaft 6 is inserted into the internal gear sleeve 5. Through the cooperation of teeth, the external gear shaft 6 can rotate with the rotation of the internal gear sleeve 5, thereby driving the input shaft of the reducer 1 to rotate.

[0027] The mounting platform 2 is provided with a motor base adjustment mechanism 7 connected to the motor 3 and the gear box 4. The motor base adjustment mechanism 7 can be used to move the motor 3 and the gear box 4 forward and backward, so that the outer gear shaft 6 can be inserted into or removed from the inner gear sleeve 5, so that the reducer 1 can be separated from the motor 3, which is convenient for maintenance and disassembly of the device.

[0028] Specifically, the motor base adjustment mechanism 7 includes a fixed plate 71 fixedly connected to the mounting table 2, and a movable plate 72 is slidably mounted on the upper end of the fixed plate 71. The upper end of the movable plate 72 is fixedly connected to the motor 3 and the gear box 4. The movable plate 72 is L-shaped, which is convenient for fixing the motor 3 and the gear box 4. A movable component 73 is provided between the fixed plate 71 and the movable plate 72. When the motor drive equipment needs to be maintained and installed or disassembled, the movable plate 72 can be moved by the set movable component 73, and then the motor 3 and the gear box 4 can be moved, which is convenient for repair, maintenance and disassembly of the device.

[0029] A locking assembly 74 is also provided between the fixed plate 71 and the movable plate 72. After the motor drive device is maintained and installed, the movable plate 72 can be fixed by the provided locking assembly 74, thereby fixing the motor 3 and the gear box 4, thereby improving the stability of the device.

[0030] Specifically, the locking assembly 74 includes a baffle 741 symmetrically arranged at the upper end of the fixed plate 71, the baffle 741 is fixedly connected to the fixed plate 71, and the movable plate 72 is slidably arranged between the two baffles 741. A locking hole 742 is penetrated on the side wall of the baffle 741 on the side away from the reducer 1, and a threaded hole 743 corresponding to the locking hole 742 is provided on the side wall of the baffle 741 on the other side. The side wall of the movable plate 72 adjacent to the baffle 741 is penetrated by a through hole 744 adapted to the locking hole 742 and the threaded hole 743, and the threaded hole 743 is used to fix the bolts passing through the through hole 744 and the locking hole 742.

[0031] After moving the movable plate 72 to a suitable position, insert the bolt into the locking hole 742 and the through hole 744 opposite to the locking hole 742, and screw the threaded end of the bolt into the threaded hole 743, so that the bolt fixes the movable plate 72 and the baffle 741 to improve the stability of the device.

[0032] Specifically, a mounting groove is provided at the upper end of the fixed plate 71, and the movable assembly 73 includes a movable block 731 fixedly connected to the bottom of the movable plate 72. The movable plate 72 and the movable block 731 are an integrally formed structure. A threaded rod 732 is rotatably mounted between the opposite inner walls of the mounting groove. The threaded rod 732 passes through the movable block 731 and is threadedly connected thereto. A rotary handle 733 connected to the threaded rod 732 is rotatably mounted on the fixed plate 71. By rotating the rotary handle 733, the threaded rod 732 can be rotated, thereby driving the movable block 731 to move along the axis of the threaded rod 732, thereby causing the movable plate 72 to move forward and backward. A sliding hole is also provided on the movable block 731, and a guide rod slidably connected to the inner wall of the sliding hole is fixedly connected between the opposite inner walls of the mounting groove.

[0033] Specifically, the inner wall of the mounting groove is provided with a mounting hole, and the handle 733 is rotatably assembled on the upper end of the fixed plate 71. The handle 733 includes a handle and a rotating rod. The rotating rod fixed at the bottom of the handle passes through the fixed plate 71 and is rotatably connected thereto. The lower end of the rotating rod extends into the mounting hole and is fixedly connected to a worm 734. A worm wheel 735 is fixedly connected to the end of the threaded rod 732. The worm wheel 735 is meshed with the worm 734. By rotating the handle, the worm 734 can drive the worm wheel 735 to rotate, thereby driving the threaded rod 732 to rotate. The worm 734 is meshed with the worm wheel 735, which has a self-locking feature, thereby further improving the stability of the device.

[0034] Specifically, a gear set 9 is provided in the gear box 4, and the gear set 9 includes a driving cylindrical gear 91 sleeved on the output shaft of the motor 3. A transmission cylindrical gear 92 meshing with the driving cylindrical gear 91 is assembled in the gear box 4 through the rotation of the shaft rod. A driven gear 93 meshing with the transmission cylindrical gear 92 is fixedly sleeved on the outer wall of the internal gear sleeve 5. The number of the transmission cylindrical gears 92 is determined according to the distance between the output shaft of the motor 3 and the input shaft of the reducer 1.

[0035] Specifically, the tooth ends of the inner gear sleeve 5 and the outer gear shaft 6 that are close to each other are both set to be arc-shaped, which improves the positioning accuracy: the arc-shaped ends on both sides can slide along the arc-shaped contour more easily when inserted into each other, which helps to more accurately insert the tooth ends of the inner gear sleeve 5 and the outer gear shaft 6 that are close to each other.

[0036] Specifically, one end of the inner gear sleeve 5 away from the reducer 1 extends to the outside of the gear box 4 and is fixedly connected to a turntable 8. By rotating the turntable 8, the relative positions of the teeth of the inner gear sleeve 5 and the outer gear shaft 6 can be adjusted.

[0037] Specifically, a coupling 10 is connected between the input shaft of the reducer 1 and the external gear shaft 6 to facilitate the installation of the external gear shaft 6. The coupling 10 can be a diaphragm coupling, which can effectively absorb various impact loads, reduce vibration and noise, and improve the overall performance and reliability of the equipment.

[0038] Working principle:

[0039] When the oil pump motor drive equipment needs to be repaired and maintained, the threaded rod 732 can be rotated by rotating the handle 733, driving the moving block 731 to move along the axis of the threaded rod 732, and then moving the moving plate 72, thereby moving the motor 3 and the gear box 4, so that the outer gear shaft 6 is disengaged from the inner gear sleeve 5, and the reducer 1 can be separated from the motor 3, which is convenient for maintenance and disassembly of the device.

[0040] After the maintenance is completed, rotate the handle 733 in the opposite direction to insert the outer gear shaft 6 into the inner gear sleeve 5. After moving the movable plate 72 to a suitable position, insert the bolt into the locking hole 742 and the through hole 744 opposite to the locking hole 742, and screw the threaded end of the bolt into the threaded hole 743, so that the bolt fixes the movable plate 72 and the baffle 741 to improve the stability of the device.

[0041] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

[0042] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A pumping unit motor driving device, comprising a reducer (1) and a mounting platform (2), characterized in that: The mounting platform (2) is provided with an electric motor (3) and a gear box (4); the end of the electric motor (3) close to the output shaft is fixedly connected to the gear box (4); an internal gear sleeve (5) is rotatably provided inside the gear box (4); the internal gear sleeve (5) is connected to the output shaft of the electric motor (3); one end of the internal gear sleeve (5) extends out of the gear box (4); the end of the input shaft of the reducer (1) is connected to an external gear shaft (6) matched with the internal gear sleeve (5); and the mounting platform (2) is provided with a motor base adjustment mechanism (7) connected to the electric motor (3) and the gear box (4).

2. The oil pumping unit motor driving device according to claim 1, characterized in that: The motor base adjustment mechanism (7) comprises a fixed plate (71) fixedly connected to the mounting platform (2); a movable plate (72) is slidably mounted on the upper end of the fixed plate (71); the upper end of the movable plate (72) is fixedly connected to the motor (3) and the gear box (4); and a movable component (73) and a locking component (74) are provided between the fixed plate (71) and the movable plate (72).

3. The oil pumping unit motor driving device according to claim 2, characterized in that: The locking assembly (74) comprises a baffle (741) symmetrically arranged at the upper end of the fixed plate (71); the movable plate (72) is slidably arranged between the baffles (741); a locking hole (742) is penetrated through the side wall of the baffle (741) on one side; a threaded hole (743) corresponding to the locking hole (742) is disposed on the side wall of the baffle (741) on the other side; a through hole (744) adapted to the locking hole (742) and the threaded hole (743) is penetrated through the side wall of the movable plate (72) adjacent to the baffle (741); the threaded hole (743) is used to fix the bolt passing through the through hole (744) and the locking hole (742).

4. The oil pumping unit motor driving device according to claim 2, characterized in that: The upper end of the fixed plate (71) is provided with a mounting groove, the movable assembly (73) comprises a movable block (731) fixedly connected to the bottom of the movable plate (72), a threaded rod (732) screwed to the movable block (731) is rotatably mounted in the mounting groove, and a rotary handle (733) connected to the threaded rod (732) is rotatably mounted on the fixed plate (71).

5. The oil pumping unit motor driving device according to claim 4, characterized in that: The inner wall of the mounting groove is provided with a mounting hole, the rotary handle (733) is rotatably assembled on the upper end of the fixed plate (71), the bottom of the rotary handle (733) extends into the mounting hole and is fixedly connected to a worm (734), and the end of the threaded rod (732) is fixedly connected to a worm wheel (735) meshing with the worm (734).

6. The oil pumping unit motor driving device according to claim 1, characterized in that: The gear box (4) is provided with a gear set (9), and the gear set (9) is respectively connected to the output shaft of the motor (3) and the internal gear sleeve (5).

7. The oil pumping unit motor driving device according to claim 1, characterized in that: The tooth ends of the inner gear sleeve (5) and the outer gear shaft (6) that are close to each other are both configured in an arc shape.

8. The oil pumping unit motor driving device according to claim 1, characterized in that: One end of the inner gear sleeve (5) away from the reducer (1) extends to the outside of the gear box (4) and is fixedly connected to a rotating disk (8).

9. The oil pumping unit motor driving device according to claim 1, characterized in that: A coupling (10) is connected between the input shaft of the reducer (1) and the external gear shaft (6).

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