Belt tensioning device for maintenance of pumping unit equipment

Abstract

The utility model belongs to the technical field of belt tensioning of oil pumping unit equipment, and discloses a belt tensioning device for maintenance of the oil pumping unit equipment, which comprises an operating platform, and an adjustable tensioning component is mounted on the surface of the operating platform. The adjustable tensioning assembly comprises a supporting plate installed on the surface of the operation table, a supporting arm rotationally connected to the surface of one side of the supporting plate, an adjusting disc used for adjusting tensioning, a movable rod, a driving plate, a moving block, an installation plate and a two-way lead screw, and a limiting and stabilizing assembly is installed on the surface of the installation plate. The limiting and stabilizing assembly comprises limiting rods and limiting discs, the limiting rods are slidably connected to the interiors of through holes formed in the surfaces of the two moving blocks, the limiting discs are symmetrically installed on the surface of the two-way lead screw, and the adjusting disc is rotationally connected to the surface of the other side of the supporting plate. And it is avoided that when the belt is loosened, an operator cannot conduct tensioning adjustment on the belt conveniently.

Description

Technical Field

[0001] This utility model belongs to the field of belt tensioning technology for oil pumping unit equipment, specifically a belt tensioning device for the maintenance of oil pumping unit equipment. Background Technology

[0002] A pumping unit is a machine used for extracting oil, commonly known as a "nodding donkey." It is the most important lifting device in a rod-type pumping system. Based on whether it has a walking beam, it can be divided into beam-type pumping units and beamless pumping units. The basic characteristics of beam-type pumping units are simple structure, easy manufacturing, and convenient use. In particular, they can operate reliably in oil fields around the clock for extended periods.

[0003] Therefore, despite its disadvantages such as large acceleration of the donkey head suspension point, poor balance effect, low efficiency, large size and bulkiness during long strokes, it is still the most widely used pumping unit. Existing pumping units use a motor to drive a belt to rotate, and the belt drives the gearbox to work.

[0004] However, the tension of the belts used in existing oil pumping units is not easy to adjust. After prolonged use, the belts tend to loosen and slip, making it difficult for the motor to drive the pulleys smoothly and effectively, which is not conducive to use.

[0005] Therefore, a belt tensioning device for the maintenance of oil pumping unit equipment is proposed to address the above problems. Utility Model Content

[0006] To address the problems mentioned in the background art, this utility model provides a belt tensioning device for the maintenance of oil pumping unit equipment. It has the advantage of being able to easily adjust the belt tension, thus avoiding the inconvenience for operators to adjust the belt tension when it becomes loose.

[0007] To achieve the above objectives, this utility model provides the following technical solution: a belt tensioning device for the maintenance of oil pumping unit equipment, including an operating table;

[0008] An adjustable tensioning assembly is installed on the surface of the operating table. The adjustable tensioning assembly includes a support plate installed on the surface of the operating table, a support arm rotatably connected to one side of the support plate, an adjusting disc, a movable rod, a drive plate, a moving block, a mounting plate, and a two-way lead screw for adjusting tension.

[0009] The mounting plate is equipped with a limit stabilizing component, which includes a limit rod slidably connected to a through hole on the surface of the two moving blocks and a limit disc symmetrically mounted on the surface of the bidirectional lead screw.

[0010] Preferably, the adjusting disc is rotatably connected to the other side surface of the support plate, and one end of the support arm is connected to the adjusting disc. Two mounting plates are symmetrically mounted on the surface of the support plate. The bidirectional lead screw is rotatably connected between the two mounting plates. Two moving blocks are symmetrically threaded to the surface of the bidirectional lead screw. Two movable rods are symmetrically mounted on the surface of the adjusting disc. One end of the driving plate is rotatably connected to the surface of the movable rod, and the other end of the driving plate is hinged to the moving block.

[0011] Preferably, an auxiliary handle is mounted on one side surface of one of the mounting plates, one end of which passes through the mounting plate and is connected to one end of the bidirectional lead screw.

[0012] Preferably, a tensioning wheel is rotatably connected within a groove on the surface of the support arm.

[0013] Preferably, the support arm is configured in an L-shape.

[0014] Preferably, the two limiting discs are symmetrically mounted on the surface of the bidirectional lead screw, and both ends of the limiting rod pass through the moving block and are respectively connected to the two mounting plates.

[0015] Preferably, the limiting plate is located on the side of the bidirectional lead screw surface where the threads are formed.

[0016] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0017] 1. This utility model, by setting an adjustable tensioning component, can easily adapt and adjust the tension of the belt, avoiding the inconvenience for operators to adjust the tension of the belt in the oil pumping unit when the belt becomes loose, thus facilitating the operation of the equipment.

[0018] 2. This utility model, by setting a limiting and stabilizing component, enables the moving block to slide stably, ensuring that the moving block does not deviate during the sliding process, thus ensuring the stability and reliability of the movement process. The limiting plate provides a physical limit to prevent the moving block from continuing to move, so that the support arm returns to the untensioned state. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0020] Figure 2 This is a schematic diagram of the structure of the adjusting disc and support plate of this utility model;

[0021] Figure 3 This is a schematic diagram of the structure of the adjusting disc and movable rod of this utility model;

[0022] Figure 4This is a schematic diagram of the structure of the drive board and moving block of this utility model;

[0023] Figure 5 This is a schematic diagram of the moving block and bidirectional lead screw of this utility model.

[0024] In the diagram: 1. Control panel; 2. Adjustable tensioning assembly; 21. Support plate; 22. Support arm; 23. Adjusting disc; 24. Movable rod; 26. Drive plate; 27. Moving block; 28. Mounting plate; 29. ​​Two-way lead screw; 210. Auxiliary handle; 211. Tensioning wheel; 3. Limiting and stabilizing assembly; 31. Limiting rod; 32. Limiting disc. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0026] like Figures 1 to 5 As shown, this utility model provides a belt tensioning device for the maintenance of oil pumping unit equipment, including an operating table 1;

[0027] An adjustable tensioning assembly 2 is installed on the surface of the operating table 1. The adjustable tensioning assembly 2 includes a support plate 21 installed on the surface of the operating table 1, a support arm 22 rotatably connected to one side of the support plate 21, an adjusting disc 23 for adjusting tension, a movable rod 24, a drive plate 26, a moving block 27, a mounting plate 28, and a two-way lead screw 29.

[0028] The adjusting disc 23 is rotatably connected to the other side surface of the support plate 21, and one end of the support arm 22 is connected to the adjusting disc 23. Two mounting plates 28 are symmetrically mounted on the surface of the support plate 21. A bidirectional lead screw 29 is rotatably connected between the two mounting plates 28. Two moving blocks 27 are symmetrically threaded to the surface of the bidirectional lead screw 29. Two movable rods 24 are symmetrically mounted on the surface of the adjusting disc 23. One end of the drive plate 26 is rotatably connected to the surface of the movable rod 24, and the other end of the drive plate 26 is hinged to the moving block 27. This design allows for convenient adjustment of the belt tension, preventing the operator from inconveniencing belt tension adjustment in the pumping unit when the belt becomes loose, thus facilitating operation.

[0029] An auxiliary handle 210 is mounted on one side surface of one of the mounting plates 28. One end of the auxiliary handle 210 passes through the mounting plate 28 and is connected to one end of the bidirectional lead screw 29, making it convenient for the operator to drive the bidirectional lead screw 29 and further improving the effectiveness of the device.

[0030] A tensioning wheel 211 is rotatably connected in a groove on the surface of the support arm 22, which allows the belt to be tensioned, effectively reducing frictional resistance during rotation, reducing energy loss, and improving transmission efficiency.

[0031] The support arm 22 is designed in an L-shape, which allows for the use of lever principle to adjust the tension of the belt.

[0032] The mounting plate 28 is equipped with a limit stabilizing component 3. The limit stabilizing component 3 includes a limit rod 31 that is slidably connected to the through holes on the surfaces of the two moving blocks 27 and a limit disc 32 that is symmetrically mounted on the surface of the bidirectional lead screw 29.

[0033] Two limiting discs 32 are symmetrically installed on the surface of the bidirectional lead screw 29. Both ends of the limiting rod 31 pass through the moving block 27 and are respectively connected to the two mounting plates 28, so that the moving block 27 slides stably and avoids deviation during the sliding process, ensuring the stability and reliability of the movement process. The limiting discs 32 provide physical limits to prevent the moving block 27 from continuing to move, so that the support arm 22 returns to the untensioned state.

[0034] The limiting plate 32 is located on the side of the surface of the bidirectional lead screw 29 where the thread is formed, thereby limiting the movement position of the moving block 27.

[0035] Among them, structures such as the bidirectional lead screw 29 are existing technologies, and their working principle is a well-known technology. The appropriate model is selected according to the actual use.

[0036] Working principle and process: First, securely install the operating platform 1 next to the pumping unit, ensuring that the support plate 21 is perpendicular to the belt running direction. Utilize the L-shaped structure of the support arm 22 to precisely adjust the position of the tension wheel 211 so that it is directly opposite the belt running path. At this time, the tension wheel 211 is in a slack state when it initially contacts the belt, preparing for subsequent tension adjustment.

[0037] The maintenance personnel hold the auxiliary handle 210 and rotate it, causing the double-acting screw 29 to rotate synchronously. Thanks to its unique design with opposing threads, the double-acting screw 29 drives two moving blocks 27 to move in opposite directions along its axis. During the movement of the moving blocks 27, the drive plate 26, hinged to them, pushes the movable rod 24, which in turn rotates the adjusting disc 23. The rotation of the adjusting disc 23 further causes the support arm 22 to swing around the support plate 21. Utilizing the L-shaped structure of the support arm 22, the horizontal movement is cleverly converted into vertical pressure, causing the tensioning wheel 211 to gradually tighten the belt, effectively eliminating belt slack and achieving belt tension adjustment.

[0038] The rotating tensioner 211 effectively reduces frictional resistance with the belt. During belt drive, the tensioner 211 rotates smoothly with the belt, reducing energy loss and improving transmission efficiency. Simultaneously, the low-friction rotational environment helps extend the service life of the tensioner 211 and its bearings, reducing equipment maintenance costs.

[0039] When the moving block 27 is driven to move by the bidirectional lead screw 29, the limiting rod 31 plays a key role. The moving block 27 always slides along the limiting rod 31, which can not only ensure that the moving block 27 always slides smoothly along the limiting rod 31, but also effectively resist lateral forces, avoid deviation, and ensure the stability and reliability of the movement process.

[0040] When the movable block 27 moves to contact the limiting plate 32, the limiting plate 32 provides a physical limit to prevent the movable block 27 from moving further. At this time, the support arm 22 is in an untensioned state.

[0041] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A belt tensioning device for the maintenance of an oil pumping unit, comprising an operating table (1); Its features are: An adjustable tensioning assembly (2) is installed on the surface of the operating table (1). The adjustable tensioning assembly (2) includes a support plate (21) installed on the surface of the operating table (1), a support arm (22) rotatably connected to one side of the support plate (21), and an adjusting disc (23), a movable rod (24), a drive plate (26), a moving block (27), a mounting plate (28), and a two-way lead screw (29) for adjusting the tension. The mounting plate (28) is equipped with a limit stabilizing component (3), which includes a limit rod (31) slidably connected in a through hole on the surface of the two moving blocks (27) and a limit disc (32) symmetrically mounted on the surface of the bidirectional lead screw (29).

2. The belt tensioning device for maintenance of an oil pumping unit according to claim 1, characterized in that: The adjusting disc (23) is rotatably connected to the other side surface of the support plate (21), and one end of the support arm (22) is connected to the adjusting disc (23). Two mounting plates (28) are symmetrically mounted on the surface of the support plate (21). The bidirectional lead screw (29) is rotatably connected between the two mounting plates (28). Two moving blocks (27) are symmetrically threaded to the surface of the bidirectional lead screw (29). Two movable rods (24) are symmetrically mounted on the surface of the adjusting disc (23). One end of the driving plate (26) is rotatably connected to the surface of the movable rod (24), and the other end of the driving plate (26) is hinged to the moving block (27).

3. The belt tensioning device for maintenance of an oil pumping unit according to claim 1, characterized in that: An auxiliary handle (210) is mounted on one side surface of one of the mounting plates (28), one end of which passes through the mounting plate (28) and is connected to one end of the bidirectional lead screw (29).

4. The belt tensioning device for maintenance of an oil pumping unit according to claim 1, characterized in that: A tensioning wheel (211) is rotatably connected in a groove on the surface of the support arm (22).

5. A belt tensioning device for maintenance of an oil pumping unit according to claim 1, characterized in that: The arm (22) is configured in an L-shape.

6. A belt tensioning device for maintenance of an oil pumping unit according to claim 1, characterized in that: Two limiting discs (32) are symmetrically mounted on the surface of the bidirectional lead screw (29). Both ends of the limiting rod (31) pass through the moving block (27) and are respectively connected to the two mounting plates (28).

7. A belt tensioning device for maintenance of an oil pumping unit according to claim 1, characterized in that: The limiting plate (32) is located on the side of the surface of the bidirectional lead screw (29) where the thread is formed.

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