A belt adjusting device for a pumping unit

Abstract

The utility model relates to petroleum machinery field, concretely relates to an oil pumping unit belt adjusting device, it includes frame, still includes the locating seat and sliding seat for installing drive motor, the guiding cylinder is installed on the frame, the guiding sleeve is slidably installed on the guiding cylinder, the locating seat is installed on the guiding sleeve, the adjusting sleeve is slidably installed on the guiding sleeve, the sliding seat is installed on the adjusting sleeve, the lead screw is installed on the locating seat, the first threaded sleeve is rotatably installed on the sliding seat, the first threaded sleeve is sleeved on the lead screw and is threadedly matched, the first threaded sleeve is equipped with the screwing portion for matching spanner, the speed reducer is installed on the frame, the output sleeve of speed reducer is installed with second threaded sleeve, the second threaded sleeve is sleeved on the lead screw and is threadedly matched, the adjusting motor for driving the operation of speed reducer is installed on the speed reducer. The oil pumping unit belt adjusting device can be adapted to the drive motor of different size, increase the adaptation range of product, improve the versatility of product.

Description

Technical Field

[0001] This utility model relates to the field of petroleum machinery, specifically to a belt adjustment device for an oil pumping unit. Background Technology

[0002] In oilfield extraction operations, the pumping unit is one of the core pieces of equipment, and its operational stability and efficiency directly affect production benefits. The pumping unit is powered by a drive motor, which transmits power to the pumping unit via belt drive. Therefore, the belt tension is crucial for power transmission. Insufficient belt tension can easily lead to slippage, reduced transmission efficiency, and accelerated belt wear; excessive tension, on the other hand, will increase the motor load, accelerate bearing wear, and even cause equipment failure. Therefore, a tensioning platform is needed to house the drive motor and adjust the belt tension.

[0003] Meanwhile, the drive motor models and sizes used in oil pumping units of different power are quite different. The existing tensioning platform is difficult to flexibly adapt to drive motors with different base sizes, resulting in poor versatility. This forces the replacement of the entire installation base or cumbersome modifications on site, which not only increases maintenance costs but also affects operational efficiency and needs to be improved. Utility Model Content

[0004] The purpose of this invention is to provide a belt adjustment device for an oil pumping unit to address the above problems, thereby solving the problem that the existing tensioning platform has poor versatility and cannot adapt to drive motors with different base sizes.

[0005] To achieve the above objectives, this utility model discloses a belt adjustment device for an oil pumping unit, including a frame. Its structural features include: a positioning seat and a sliding seat for mounting a drive motor; a guide cylinder mounted on the frame; a guide sleeve slidably mounted on the guide cylinder; a positioning seat mounted on the guide sleeve; an adjusting sleeve slidably mounted on the guide sleeve; a sliding seat mounted on the adjusting sleeve; a lead screw mounted on the positioning seat; and a first threaded sleeve rotatably mounted on the sliding seat. The first threaded sleeve is fitted onto the lead screw, and the two are threadedly engaged. The first threaded sleeve has a tightening part for engaging a wrench.

[0006] The original motor mounting base is divided into a positioning base and a sliding base. When a large-sized drive motor needs to be installed, the wrench is locked on the screwing part, and then the first threaded sleeve is rotated. The first threaded sleeve cooperates with the lead screw and drives the sliding base away from the positioning base, thereby adapting to drive motors of different sizes, increasing the product's compatibility and improving its versatility.

[0007] A speed reducer is mounted on the frame. A second threaded sleeve is installed on the output sleeve of the speed reducer, and the second threaded sleeve is fitted onto the lead screw, with the two threads engaging. An adjusting motor is mounted on the speed reducer to drive its operation. The speed reducer's structure includes an internal worm gear and a worm shaft. The output shaft of the adjusting motor is connected to the worm shaft, and the speed reducer's output sleeve is located on the worm gear. When the adjusting motor operates, the second threaded sleeve engages with the lead screw, thereby causing the positioning seat and sliding seat to move horizontally, thus adjusting the belt tension.

[0008] There are two guide cylinders, which are spaced apart and arranged parallel to each other. Each guide cylinder is equipped with a guide sleeve that slides and engages with the corresponding guide cylinder. This prevents individual guide cylinders from twisting or deforming, ensuring smoother and more reliable operation.

[0009] A mounting base is installed on the sliding seat, and a bearing is mounted on the mounting base. The first threaded sleeve is rotated and mounted on the mounting base via the bearing. This reduces the resistance when the wrench rotates the first threaded sleeve, making manual operation easier and less strenuous.

[0010] A limiting sleeve is installed at the end of the guide sleeve away from the positioning seat to block the sliding seat, which is located between the positioning seat and the limiting sleeve. This prevents the sliding seat from accidentally sliding out of the guide sleeve during adjustment, thus avoiding equipment damage.

[0011] The lower part of the positioning seat is equipped with a lead screw seat, one end of the lead screw is installed in the lead screw seat, and the lead screw and the lead screw seat are connected by a pin. The lead screw is reliably installed and easy to disassemble and maintain.

[0012] Both the positioning seat and the sliding seat are equipped with connecting slots for connecting the drive motor. The drive motor is installed by passing bolts through the base and connecting slots of the drive motor and finally tightening the nuts.

[0013] The cross-section of the screwing part is hexagonal, and the screwing part as a whole is hexagonal, which makes it easy to match with open-end wrenches.

[0014] The frame is equipped with a control box for controlling the operation of the regulating motor, which integrates the control circuit for the regulating motor.

[0015] In summary, the beneficial effects of this utility model are as follows: the original motor mounting base is divided into a positioning base and a sliding base. When a large-sized drive motor needs to be installed, the wrench is placed on the screwing part, and then the first threaded sleeve is rotated. The first threaded sleeve cooperates with the lead screw and drives the sliding base away from the positioning base, thereby adapting to drive motors of different sizes, increasing the product's compatibility range, and improving the product's versatility. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the shaft side structure of the belt adjustment device; Figure 2This is a schematic diagram of the lead screw installation structure; Figure 3 for Figure 2 A magnified view of the local structure at point A; Figure 4 for Figure 2 A magnified schematic diagram of the local structure at point B; Figure 5 A schematic diagram of the structure when a large-size drive motor is installed in the belt adjustment device; Figure 6 A schematic diagram of the structure when a small-sized drive motor is installed in the belt adjusting device.

[0017] In the diagram: 1. Frame; 2. Positioning seat; 3. Sliding seat; 4. Lead screw; 5. Adjusting motor; 6. Reducer; 7. Control box; 8. Mounting seat; 9. Connecting groove; 10. Guide cylinder; 11. Guide sleeve; 12. Adjusting sleeve; 13. Tightening part; 14. First threaded sleeve; 15. Limit sleeve; 16. Lead screw seat; 17. Pin. Detailed Implementation

[0018] The specific embodiments of this utility model will be further described in detail below with reference to the accompanying drawings and examples. The following examples are used to illustrate this utility model, but are not intended to limit the scope of this utility model.

[0019] The following is a description of preferred embodiments of the present invention in conjunction with the accompanying drawings.

[0020] An oil pumping unit belt adjustment device includes a frame 1, a positioning seat 2 and a sliding seat 3 for mounting a drive motor. A guide cylinder 10 is mounted on the frame 1, and a guide sleeve 11 is slidably mounted on the guide cylinder 10. The positioning seat 2 is mounted on the guide sleeve 11, and an adjustment sleeve 12 is slidably mounted on the guide sleeve 11. The sliding seat 3 is mounted on the adjustment sleeve 12. A lead screw 4 is mounted on the positioning seat 2, and a first threaded sleeve 14 is rotatably mounted on the sliding seat 3. The first threaded sleeve 14 is fitted onto the lead screw 4, and the two are threadedly engaged. The first threaded sleeve 14 has a tightening part 13 for engaging a wrench. (See attached diagram) Figure 1 The original motor mounting base 8 is divided into a positioning base 2 and a sliding base 3. When a large-sized drive motor needs to be installed, the wrench is locked on the screwing part 13, and then the first threaded sleeve 14 is rotated. The first threaded sleeve 14 cooperates with the lead screw 4 and drives the sliding base 3 away from the positioning base 2, thereby adapting to drive motors of different sizes, increasing the product's compatibility range and improving its versatility.

[0021] See attached document Figure 2A reducer 6 is mounted on the frame 1. A second threaded sleeve is mounted on the output sleeve of the reducer 6, and the second threaded sleeve is fitted onto the lead screw 4 with a threaded engagement. An adjusting motor 5 is mounted on the reducer 6 to drive its operation. The reducer 6 consists of an internal worm gear and a worm shaft. The output shaft of the adjusting motor 5 is connected to the worm shaft, and the output sleeve of the reducer 6 is located on the worm gear. When the adjusting motor 5 is activated, the second threaded sleeve engages with the lead screw 4, thereby causing the positioning seat 2 and the sliding seat 3 to move horizontally, thus adjusting the belt tension. Two guide cylinders 10 are provided, spaced apart and parallel to each other. Each guide cylinder 10 is equipped with a guide sleeve 11 that slides and engages with the corresponding guide cylinder 10. This prevents individual guide cylinders 10 from twisting or deforming, ensuring smoother and more reliable operation.

[0022] See attached document Figure 5 A mounting base 8 is installed on the sliding seat 3, and a bearing is installed on the mounting base 8. The first threaded sleeve 14 is rotatably mounted on the mounting base 8 via the bearing. This reduces the resistance when the wrench rotates the first threaded sleeve 14, making manual operation easier and less strenuous. (See attached diagram.) Figure 6 A limiting sleeve 15 is installed at the end of the guide sleeve 11 away from the positioning seat 2 to block the sliding seat 3. The sliding seat 3 is located between the positioning seat 2 and the limiting sleeve 15. This can prevent the sliding seat 3 from accidentally sliding out of the guide sleeve 11 during the adjustment process, thus avoiding damage to the equipment.

[0023] See attached document Figure 3 A lead screw seat 16 is installed at the lower part of the positioning seat 2. One end of the lead screw 4 is installed in the lead screw seat 16. The lead screw 4 and the lead screw seat 16 are connected by a pin 17. The lead screw 4 is reliably installed and easy to disassemble and maintain. (See attached diagram) Figure 1 Both the positioning seat 2 and the sliding seat 3 are provided with connecting grooves 9 for connecting the drive motor. The drive motor is installed by passing bolts through the base of the drive motor and the connecting grooves 9, and finally tightening the nuts. The screwing part 13 has a hexagonal cross-section, and the overall shape of the screwing part 13 is hexagonal, making it easy to match with tools such as open-end wrenches. (See attached diagram.) Figure 4 The frame 1 is equipped with a control box 7 for controlling the operation of the regulating motor 5. The control box 7 integrates the control circuit of the regulating motor 5.

[0024] 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 substitutions can be made without departing from the technical principles of the present utility model, and these improvements and substitutions should also be considered within the protection scope of the present utility model.

Claims

1. A belt adjustment device for an oil pumping unit, comprising a frame (1), characterized in that, It also includes a positioning seat (2) and a sliding seat (3) for mounting the drive motor. A guide cylinder (10) is mounted on the frame (1). A guide sleeve (11) is slidably mounted on the guide cylinder (10). The positioning seat (2) is mounted on the guide sleeve (11). An adjusting sleeve (12) is slidably mounted on the guide sleeve (11). The sliding seat (3) is mounted on the adjusting sleeve (12). A lead screw (4) is mounted on the positioning seat (2). A first threaded sleeve (14) is rotatably mounted on the sliding seat (3). The first threaded sleeve (14) is fitted on the lead screw (4) and the two are threaded together. The first threaded sleeve (14) is provided with a screwing part (13) for cooperating with a wrench.

2. The oil pumping unit belt adjustment device as described in claim 1, characterized in that, A speed reducer (6) is installed on the frame (1). A second threaded sleeve is installed on the output sleeve of the speed reducer (6). The second threaded sleeve is fitted on the lead screw (4) and the two are threaded together. An adjustment motor (5) for driving the speed reducer (6) is installed on the speed reducer (6).

3. The oil pumping unit belt adjustment device as described in claim 1, characterized in that, The guide cylinder (10) is provided in two, with the two guide cylinders (10) spaced apart and arranged in parallel. Each guide cylinder (10) is equipped with a guide sleeve (11) that slides and engages with the corresponding guide cylinder (10).

4. The oil pumping unit belt adjustment device as described in claim 1, characterized in that, The sliding seat (3) is equipped with a mounting seat (8), and the mounting seat (8) is equipped with a bearing. The first threaded sleeve (14) is rotatably mounted on the mounting seat (8) through the bearing.

5. The oil pumping unit belt adjustment device as described in claim 1, characterized in that, The guide sleeve (11) is equipped with a limiting sleeve (15) for blocking the sliding seat (3) at the end away from the positioning seat (2), and the sliding seat (3) is located between the positioning seat (2) and the limiting sleeve (15).

6. The oil pumping unit belt adjustment device as described in claim 1, characterized in that, The lower part of the positioning seat (2) is equipped with a lead screw seat (16), one end of the lead screw (4) is installed in the lead screw seat (16), and the lead screw (4) and the lead screw seat (16) are connected by a pin (17).

7. The oil pumping unit belt adjustment device as described in claim 1, characterized in that, Both the positioning seat (2) and the sliding seat (3) are provided with connecting slots (9) for connecting the drive motor.

8. The oil pumping unit belt adjustment device as described in claim 1, characterized in that, The cross-section of the screwing part (13) is hexagonal.

9. The oil pumping unit belt adjustment device as described in claim 1, characterized in that, The frame (1) is equipped with a control box (7) for controlling the operation of the regulating motor (5).

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