Hanging drawing machine

Abstract

The invention provides a hanging and drawing machine. The hanging and drawing machine comprises a supporting unit, a holding unit, an adjusting and lifting device, a lifting system, a front-back adjusting device and a hanging and taking device. The supporting unit is composed of a fixed frame and a multi-stage frame and provides stable supporting. The enclasping units are symmetrically arranged on the two sides of the supporting unit and used for accurately enclasping the pumping unit stand column; the lifting device and the lifting system are adjusted to work cooperatively to control the height of the hanging device; the front-back adjusting device drives the hanging and taking device to move front and back in the horizontal plane, and accurate hanging and taking of the sucker rod are achieved. The hanging pumping machine has the advantages of being compact in structure, easy and convenient to operate, high in adaptability and the like, the problems that a traditional crane is long in operation preparation time, difficult to adjust, high in cost, large in danger and the like can be effectively solved, and the maintenance efficiency and safety of the sucker rod are remarkably improved.

Description

Technical Field

[0001] The invention relates to the technical field of crude oil extraction, in particular to a hanging pumping machine. Background Art

[0002] As an effective crude oil extraction equipment, the oil pumping unit has always been one of the main equipment for oil field production. Due to the aging of the packing and the maintenance of the equipment, the sucker rod needs to be lifted to a certain height frequently to replace the packing and overhaul the equipment. Due to the high height and heavy weight, a crane is generally used for lifting operations. Due to the long preparation time before the crane operation, the distance is far and difficult to adjust when hanging the sucker rod, the crane cost is high, many operators are required, the risk factor is high during the operation, and the operation site needs to be large. A special equipment is required for hanging and pumping operations. Summary of the invention

[0003] In view of the above-mentioned technical deficiencies, the purpose of the present invention is to provide a hanging pumping machine to reduce the preparation time before operation and improve work efficiency.

[0004] To achieve the above object, the present invention adopts the following technical solution:

[0005] A hanging pumping machine is installed on a driving host through a quick connection device, comprising:

[0006] The support unit is a main component for providing support force; one end of the quick connection device is fixedly mounted on the support unit;

[0007] The clamping units are configured with two, symmetrically arranged on both sides of the supporting unit, and are used to clamp the pumping unit column;

[0008] An adjustable lifting device is installed on the top of the support unit;

[0009] A lifting system, installed on the support unit, for controlling and adjusting the lifting and lowering of the lifting device on the support unit;

[0010] The front and rear adjustment device is installed on the adjustment lifting device, and the front and rear adjustment device is driven to move left and right in the horizontal plane through the adjustment lifting device;

[0011] The hanging device is installed on the front and rear adjustment device and is used to hang the sucker rod; the hanging device is driven to move forward and backward in the horizontal plane through the front and rear moving device.

[0012] Preferably, the support unit includes a fixed frame and a multi-stage frame; the quick connecting device is installed on the fixed frame; the multi-stage frame can be movably installed on the upper part of the fixed frame; the height of the lifting device is controlled and adjusted by adjusting the length of the multi-stage frame extending out of the fixed frame by the lifting system; an angle level is installed on the fixed frame; two legs are symmetrically installed on both sides of the fixed frame, namely a left leg and a right leg; the legs include a leg swing arm, a leg extension arm, a leg driving device, a hinge device and a support plate; a leg pin is installed at one end of the leg swing arm, and is hingedly installed on the fixed frame through the leg pin; one end of the leg extension arm is telescopically installed at the other end of the leg swing arm, and the leg extension arm is driven to extend or retract by a driving device arranged on the leg swing arm; the leg driving device is fixed on the leg extension arm; the hinge device is hingedly connected to the leg driving device, the support plate is fixed at the lower end of the hinge device, and the support plate is controlled to move upward or downward by the leg driving device.

[0013] Preferably, the clamping unit comprises an arm, an arm driving device, an arm swinging arm, an arm extension arm, and a chuck; the arm and the arm driving device are hingedly mounted on the fixed frame; one end of the arm driving device is hingedly mounted on the arm; one end of the arm extension arm is telescopically mounted on the arm, and the arm extension arm is driven to extend and retract by a driving device arranged on the arm; the chuck is hingedly mounted on the other end of the arm extension arm; the two arms of the clamping unit are a left arm and a right arm; the chuck is controlled to be accurately clamped on the oil pumping unit column by extending the arm extension arm in coordination with the opening and closing of the arm swinging arm.

[0014] Preferably, there are two adjusting and lifting devices, which are symmetrically arranged on both sides of the supporting unit; the adjusting and lifting devices include a side-shift guide rail, a side-shift frame, a side-shift drive seat, and a side-shift drive device; there are two side-shift guide rails, which are fixed on the multi-stage frame in parallel and at intervals up and down; the side-shift frame is slidably arranged on the side-shift guide rail; the side-shift drive seat is fixed on the multi-stage frame; the first end of the side-shift drive device is hinged on the side-shift drive seat, and the other end is connected to the side-shift frame, and the side-shift frame is driven to move back and forth on the side-shift guide rail by the side-shift drive device.

[0015] Preferably, the front and rear adjustment device includes front and rear guide rails, a front and rear adjustment device, a horizontal pulley, and a longitudinal pulley; the front and rear guide rails are C-shaped and are arranged between the two adjustment and lifting devices; the front and rear guide rails are fixed on the side shift frame; the hanging device is arranged on the inner side of the front and rear guide rails; one end of the front and rear adjustment device is hinged on the side shift frame, and the other end is connected to the hanging device; two horizontal pulleys and two longitudinal pulleys are each configured, and are symmetrically arranged on both sides of the hanging device; the horizontal pulley is rotatably arranged inside the front and rear guide rails and connected to the hanging device; the longitudinal pulley is rotatably arranged on the outside of the front and rear guide rails and is in rolling contact with the front and rear guide rails; the hanging device is driven by the front and rear adjustment device to move in the front and rear directions on the front and rear guide rails.

[0016] Preferably, the angle level includes a support base, a back plate, a rotating shaft, a swinging disk and a magnet; the magnet is fixed on the support base; the rotating shaft is rotatably fixed vertically on the support base; the swinging disk is installed on the rotating shaft; the back plate is fixed on the support base and is located between the support base and the swinging disk; the swinging disk is fan-shaped; and the magnet is attracted to the fixed frame.

[0017] Preferably, the hanging device includes a bracket and two hanging components; the horizontal pulley and the longitudinal pulley are installed on the bracket; the bracket is provided with a groove adapted to the sucker rod; the two hanging components are symmetrically arranged on both sides of the groove; the hanging component includes a hanging drive device, a compression spring, and an eccentric pressure plate; the eccentric pressure plate is rotatably arranged on the bracket; one end of the hanging drive device is hinged on the bracket, and the other end is hinged on the eccentric pressure plate; one end of the compression spring is fixed on the bracket, and the other end is fixed on the eccentric pressure plate; a toothed groove is arranged on the eccentric pressure plate.

[0018] Preferably, a protrusion is fixedly provided on the eccentric pressure plate of one of the hanging assemblies; and a concave block matching with the protrusion is fixedly provided on the other eccentric pressure plate.

[0019] The utility model relates to a hanging pumping machine, which is used for repairing the sucker rod of crude oil extraction equipment.

[0020] Compared with the prior art, the present invention has the following beneficial effects:

[0021] Efficient and convenient: It is connected to the drive host through a quick connection device, which reduces the preparation time before operation and improves work efficiency.

[0022] Precise adjustment: The multi-level frame, adjustable lifting device and front and rear adjustment device are used to achieve precise positioning of the sucker rod in the horizontal and vertical directions, improving the accuracy of hanging and taking.

[0023] Strong adaptability: The clamping unit and outrigger design can adapt to different types of pumping unit columns and uneven ground, expanding the scope of application of the equipment.

[0024] High safety: The load data during the lifting process is monitored in real time through the load sensor, and the over-value alarm function effectively protects the safety of the equipment and sucker rods; remote control operation reduces the direct contact of operators and reduces the danger.

[0025] Stable structure: The design of the support unit and angle level ensures the stability of the equipment, maintaining vertical and horizontal balance even in complex environments.

[0026] Easy maintenance: The modular design facilitates the disassembly and maintenance of the equipment, reducing the cost of use.

[0027] Environmental protection and energy saving: Compared with traditional cranes, the hanging pumping machine of the present invention has a small size and low energy consumption, which is more in line with the requirements of green operations. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 It is a structural schematic diagram of the present invention;

[0029] Figure 2 It is a structural schematic diagram of the regulating and lifting device in the present invention;

[0030] Figure 3 It is a schematic structural diagram of the front and rear adjustment device in the present invention;

[0031] Figure 4 It is a structural schematic diagram of the right supporting leg in the present invention;

[0032] Figure 5 for Figure 1 Schematic diagram of the cross section along the AA direction;

[0033] Figure 6 It is a structural schematic diagram of the angle level meter in the present invention;

[0034] Figure 7 is a control system diagram of the present invention;

[0035] Figure 8 for Figure 3 Schematic diagram of the cross section along the BB direction;

[0036] Fig. 9 for Figure 8 Schematic diagram of the cross section along the CC direction.

[0037] in:

[0038] 1. Pumping unit column; 2. Pumping rod; 3. Christmas tree; 4. Drive main engine; 5. Lifting system; 6. Quick connection device; 7. Fixed frame; 8. Multi-stage frame; 9. Adjustable lifting device; 91. Lateral guide rail; 92. Lateral drive seat; 10. Front and rear adjustment device; 101. Horizontal pulley; 102. Longitudinal pulley; 103. Load sensor; 11. Lateral frame; 111. Front and rear guide rail; 12. Lateral drive device; 13. Front and rear drive device; 14. Right outrigger; 15. Left outrigger; 151. Outrigger pin; 152. Outrigger swing arm; 153. Outrigger Leg extension arm; 154, leg driving device; 155, hinge device; 156, support plate; 16, right arm; 161, arm driving device; 162, arm swing arm; 163, arm extension arm; 164, chuck; 17, left arm; 18, angle level; 181, support seat; 182, back plate; 183, rotating shaft; 184, swing plate; 185, magnet; 19, hanging device; 191, bracket; 192, hanging drive device; 193, compression spring; 194, eccentric pressure plate; 198, protrusion; 199, concave block; 1910, tooth groove. DETAILED DESCRIPTION

[0039] The present invention will be further described below in conjunction with the accompanying drawings.

[0040] like Figures 1 to 9 As shown, a hanging pumping machine is installed on a driving host 4 through a quick connection device 6, comprising:

[0041] The support unit is the main component for providing support force; one end of the quick connection device 6 is fixedly mounted on the support unit;

[0042] The clamping units are provided with two and are symmetrically arranged on both sides of the supporting unit, and are used to clamp the pumping unit column 1;

[0043] An adjustable lifting device 9 is mounted on the top of the supporting unit;

[0044] A lifting system 5, installed on the support unit, for controlling and adjusting the lifting and lowering of the lifting device 9 on the support unit;

[0045] The front and rear adjustment device 10 is installed on the adjustment and lifting device 9, and the front and rear adjustment device 10 is driven to move left and right in the horizontal plane by the adjustment and lifting device 9;

[0046] The hanging device 19 is installed on the front-rear adjustment device 10 and is used to hang the sucker rod 2. The hanging device 19 is driven to move forward and backward in the horizontal plane by the front-rear moving device.

[0047] It also includes a control cabinet, which is used to control the operation of the components and can be remotely controlled.

[0048] In this embodiment, the support unit includes a fixed frame 7 and a multi-stage frame 8; the quick connection device 6 is installed on the fixed frame 7; the multi-stage frame 8 can be movably installed on the upper part of the fixed frame 7; the height of the lifting device 9 is controlled by adjusting the length of the multi-stage frame 8 extending out of the fixed frame 7 through the lifting system 5; an angle level 18 is installed on the fixed frame 7; the lifting process of the sucker rod 2 is monitored in real time through the load sensor 103, the maximum load value is set, the load data is fed back in real time, and an over-value alarm is issued to protect the safety of the equipment and the sucker rod 2. Two legs are symmetrically installed on both sides of the fixed frame 7, namely the left leg 15 and the right leg 14; the legs include a leg swing arm 152, a leg extension arm 153, a leg driving device 154, a hinge device 155 and a support plate 156; a leg pin 151 is installed at one end of the leg swing arm 152, and is hingedly installed on the fixed frame 7 through the leg pin 151; one end of the leg extension arm 153 is telescopically installed at the other end of the leg swing arm 152, and the leg extension arm 153 is driven to extend or retract by a driving device arranged on the leg swing arm 152; the leg driving device 154 is fixed on the leg extension arm 153; the hinge device 155 is hingedly connected to the leg driving device 154, so that the support plate can swing within a certain range. The left leg 15 and the right leg 14 can simultaneously control the support plate 156 to move downward, and at the same time control the downward movement height according to the height of the ground. The hinge device 155 can achieve a close fit on uneven ground; the support plate 156 is fixed to the lower end of the hinge device 155, and the support plate 156 is controlled to move upward or downward by the leg driving device 154.

[0049] In this embodiment, the clamping unit includes an arm, an arm driving device 161, an arm swinging arm 162, an arm extension arm 163, and a chuck 164; the arm and the arm driving device 161 are hingedly mounted on the fixed frame 7; one end of the arm driving device 161 is hingedly mounted on the arm; one end of the arm extension arm 163 is telescopically mounted on the arm, and the arm extension arm 163 is driven to extend and retract by a driving device arranged on the arm; the chuck 164 is hingedly mounted on the other end of the arm extension arm 163; the arms of the two clamping units are the left arm 17 and the right arm 16; the chuck 164 is controlled to be accurately clamped on the oil pumping unit column 1 by extending the arm extension arm 163 in coordination with the opening and closing of the arm swinging arm 162.

[0050] In the present embodiment, two adjusting and lifting devices 9 are provided, which are symmetrically arranged on both sides of the supporting unit; the adjusting and lifting devices 9 include a side shift guide rail 91, a side shift frame 11, a side shift drive seat 92, and a side shift drive device 12; two side shift guide rails 91 are provided, which are fixed on the multi-stage frame 8 in parallel and at intervals up and down; the side shift frame 11 is slidably provided on the side shift guide rail 91; the side shift drive seat 92 is fixed on the multi-stage frame 8; the first end of the side shift drive device 12 is hinged on the side shift drive seat 92, and the other end is connected to the side shift frame 11, and the side shift frame 11 is driven by the side shift drive device 12 to move back and forth on the side shift guide rail 91.

[0051] In this embodiment, the front and rear adjustment device 10 includes a front and rear guide rail 111, a front and rear adjustment device 10, a horizontal pulley 101, and a longitudinal pulley 102; the front and rear guide rail 111 is C-shaped and is arranged between the two adjustment and lifting devices 9; the front and rear guide rail 111 is fixed on the side shift frame 11; the hanging device 19 is arranged on the inner side of the front and rear guide rail 111; one end of the front and rear adjustment device 10 is hinged on the side shift frame 11, and the other end is connected to the hanging device 19; two horizontal pulleys 101 and two longitudinal pulleys 102 are each configured, and are symmetrically arranged on both sides of the hanging device 19; the horizontal pulley 101 is rotatably arranged inside the front and rear guide rail 111 and is connected to the hanging device 19; the longitudinal pulley 102 is rotatably arranged on the outside of the front and rear guide rail 111 and is in rolling contact with the front and rear guide rail 111; the hanging device 19 is driven by the front and rear adjustment device 10 to move in the front and rear directions on the front and rear guide rails 111.

[0052] In this embodiment, the angle level 18 includes a support base 181, a back plate 182, a rotating shaft 183, a swing plate 184 and a magnet 185; the magnet 185 is fixed on the support base 181; the rotating shaft 183 is rotatably fixed on the support base 181 vertically; the swing plate 184 is installed on the rotating shaft 183; the back plate 182 is fixed on the support base 181 and is located between the support base 181 and the swing plate 184; the back plate 182 is sprayed with bright and obvious colors; the swing plate 184 is fan-shaped; and the magnet 185 is attracted to the fixed frame 7. The angle level 18 can be used to determine whether the front-back and left-right directions are vertical.

[0053] In this embodiment, the hanging device 19 includes a bracket 191 and two hanging components; the horizontal pulley 101 and the longitudinal pulley 102 are installed on the bracket 191; the bracket 191 is provided with a groove adapted to the sucker rod 2; the two hanging components are symmetrically arranged on both sides of the groove; the hanging component includes a hanging drive device 192, a compression spring 193, and an eccentric pressure plate 194; the eccentric pressure plate 194 is rotatably arranged on the bracket 191; one end of the hanging drive device 192 is hinged on the bracket 191, and the other end is hinged on the eccentric pressure plate 194; one end of the compression spring 193 is fixed on the bracket 191, and the other end is fixed on the eccentric pressure plate 194; a toothed groove 1910 is provided on the eccentric pressure plate 194; the sucker rod 2 is clamped between the two eccentric pressure plates 194 by the rotation of the two eccentric pressure plates 194, so as to facilitate the sucker rod 2 to be lifted out of the oil production tree 3.

[0054] In this embodiment, a protrusion 198 is fixedly provided on the eccentric pressure plate 194 of one of the hanging assemblies; a concave block 199 matching with the protrusion 198 is fixedly provided on the other eccentric pressure plate 194 .

[0055] A hanging pumping machine is used for repairing the sucker rod 2 of crude oil extraction equipment.

[0056] Usage process

[0057] The main engine 4 is driven to connect the hanging pump through the quick connection device 6, and the main engine 4 is driven to move the hanging pump in front of the pumping unit. By observing the angle level 18, the angle is adjusted until the swing plate 184 on the angle level 18 completely covers the back plate 182. The left and right legs 14 are extended horizontally until they reach the appropriate position, and the operator swings them to the appropriate angle to achieve the best support effect. The left and right legs 14 are extended vertically, and the left and right legs 14 will adapt to the different heights of the ground.

[0058] When extended to different lengths, the support plate 156 will deflect a certain angle to adapt to the inclined ground and fit more closely. Extend the left and right arms 16, adjust the arm opening and closing angles and the extended length to control the chuck 164 to clamp the oil production machine column, so as to realize the hanging and pumping operations of oil production machines of different brands and models. The sucker rod 2 is placed on the hanging device 19 through front and back adjustment and left and right adjustment. The hanging drive device 192 is extended to drive the left and right eccentric pressure plates 194 to rotate and gradually approach the sucker rod 2. No matter which side of the eccentric pressure plate 194 contacts the sucker rod 2 first, the eccentric pressure plate 194 on this side will stop or slow down to make a certain amount of left and right compensation. The toothed grooves on the rotating pressure plate can more effectively contact the sucker rod 2 and fix it firmly. The compression springs 193 on both sides have a certain reserved pressure. When the hanging and taking drive device 192 fails, the compression springs 193 will tightly press the left and right eccentric pressure plates 194, and use the downward weight of the sucker rod 2 to rotate the left and right eccentric pressure plates 194 inward. The more inward the rotation, the greater the pressure on the sucker rod 2, and the more firmly it is fixed. The C-shaped front and rear guide rails 111 can prevent the sand and dust on the operation site from polluting the track. At the same time, the longitudinal rollers on both sides can achieve the upper limit in the left and right directions. The horizontal rollers are built into the C-shaped front and rear guide rails 111, which are easy to move. Control the lifting system 5 and adjust the lifting device 9 to lift, drive the sucker rod 2 to lift to reach the required height, and lock the sucker rod 2 under the load. Complete the hanging and pumping operation. With remote control operation, the operator can understand the operation situation more clearly, control the moving speed of each part of the equipment, and feedback the load data in real time through the load sensor 103 to adjust the operation mode and feed speed.

Claims

1. A pumping machine, mounted on a driving host (4) via a quick connection device (6), characterized in that: include: A support unit is a main component for providing support force; one end of the quick connection device (6) is fixedly mounted on the support unit; Two clamping units are provided and symmetrically arranged on both sides of the support unit, and are used to clamp the oil pumping unit column (1); An adjustable lifting device (9) is mounted on the top of the supporting unit; A lifting system (5) installed on the support unit and used to control and adjust the lifting and lowering of the lifting device (9) on the support unit; The front-rear adjustment device (10) is installed on the adjustment and lifting device (9), and the front-rear adjustment device (10) is driven to move left and right in a horizontal plane by the adjustment and lifting device (9); The hanging device (19) is installed on the front-rear adjustment device (10) and is used to hang the sucker rod (2); the hanging device (19) is driven to move forward and backward in a horizontal plane by the front-rear moving device.

2. A hanging pumping machine as claimed in claim 1, characterized in that: The support unit comprises a fixed frame (7) and a multi-stage frame (8); the quick connection device (6) is mounted on the fixed frame (7); the multi-stage frame (8) is movably mounted on the upper part of the fixed frame (7); the height of the lifting device (9) is controlled and adjusted by adjusting the length of the multi-stage frame (8) extending out of the fixed frame (7) through the lifting system (5); an angle level (18) is mounted on the fixed frame (7); two legs are symmetrically mounted on both sides of the fixed frame (7), namely a left leg (15) and a right leg (14); the legs comprise a leg swing arm (152), a leg extension arm (153), a leg driving device (154), a hinge device (155) and a support plate (156); One end of the leg swing arm (152) is provided with a leg pin shaft (151), which is hingedly mounted on the fixed frame (7) via the leg pin shaft (151); one end of the leg extension arm (153) is telescopically mounted on the other end of the leg swing arm (152), and the leg extension arm (153) is driven to extend or retract via a driving device arranged on the leg swing arm (152); the leg driving device (154) is fixed on the leg extension arm (153); the hinge device (155) is hingedly connected to the leg driving device (154), and the support plate (156) is fixed on the lower end of the hinge device (155), and the support plate (156) is controlled to move upward or downward via the leg driving device (154).

3. A hanging pumping machine as claimed in claim 2, characterized in that: The clamping unit comprises an arm, an arm driving device (161), an arm swinging arm (162), an arm extension arm (163), and a chuck (164); the arm and the arm driving device (161) are hingedly mounted on the fixed frame (7); one end of the arm driving device (161) is hingedly mounted on the arm; one end of the arm extension arm (163) is telescopically mounted on the arm, and the arm extension arm (163) is driven to extend and retract by a driving device arranged on the arm; the chuck (164) is hingedly mounted on the other end of the arm extension arm (163); the two arms of the clamping unit are a left arm (17) and a right arm (16); the chuck (164) is controlled to be accurately clamped on the oil pumping unit column (1) by extending the arm extension arm (163) in coordination with the opening and closing of the arm swinging arm (162).

4. A hanging pumping machine as claimed in claim 2, characterized in that: The adjusting and lifting devices (9) are provided with two and are symmetrically arranged on both sides of the supporting unit; the adjusting and lifting devices (9) include a side shift guide rail (91), a side shift frame (11), a side shift drive seat (92), and a side shift drive device (12); two side shift guide rails (91) are provided and are fixed on the multi-stage frame (8) in parallel and at intervals; the side shift frame (11) is slidably arranged on the side shift guide rail (91); the side shift drive seat (92) is fixed on the multi-stage frame (8); a first end of the side shift drive device (12) is hinged on the side shift drive seat (92), and the other end is connected to the side shift frame (11), and the side shift frame (11) is driven by the side shift drive device (12) to move back and forth on the side shift guide rail (91).

5. A hanging pumping machine as claimed in claim 4, characterized in that: The front-to-back adjustment device (10) comprises a front-to-back guide rail (111), a front-to-back adjustment device (10), a horizontal pulley (101), and a longitudinal pulley (102); the front-to-back guide rail (111) is C-shaped and is arranged between the two adjustment and lifting devices (9); the front-to-back guide rail (111) is fixed on the side shift frame (11); the hanging device (19) is arranged on the inner side of the front-to-back guide rail (111); one end of the front-to-back adjustment device (10) is hinged on the side shift frame (11), and the other end is connected to the hanging device (19); The horizontal pulley (101) and the longitudinal pulley (102) are each configured with two, and are symmetrically arranged on both sides of the hanging device (19); the horizontal pulley (101) is rollably arranged inside the front and rear guide rails (111) and is connected to the hanging device (19); the longitudinal pulley (102) is rollably arranged outside the front and rear guide rails (111) and is in rolling contact with the front and rear guide rails (111); the hanging device (19) is driven by the front and rear adjustment device (10) to move on the front and rear guide rails (111) in the front and rear directions.

6. A hanging pumping machine as claimed in claim 2, characterized in that: The angle level (18) comprises a support seat (181), a back plate (182), a rotating shaft (183), a swinging disc (184) and a magnet (185); the magnet (185) is fixed on the support seat (181); the rotating shaft (183) is rotatably and vertically fixed on the support seat (181); the swinging disc (184) is mounted on the rotating shaft (183); the back plate (182) is fixed on the support seat (181) and is located between the support seat (181) and the swinging disc (184); the swinging disc (184) is in the shape of a fan; and the magnet (185) is attracted to the fixed frame (7).

7. A hanging pumping machine as claimed in claim 5, characterized in that: The hanging device (19) comprises a bracket (191) and two hanging components; the horizontal pulley (101) and the longitudinal pulley (102) are installed on the bracket (191); a groove matching the sucker rod (2) is provided on the bracket (191); the two hanging components are symmetrically arranged on both sides of the groove; the hanging component comprises a hanging drive device (192), a compression spring (193), and an eccentric pressure plate (194); the eccentric pressure plate (194) is rotatably arranged on the bracket (191); one end of the hanging drive device (192) is hinged on the bracket (191), and the other end is hinged on the eccentric pressure plate (194); one end of the compression spring (193) is fixed on the bracket (191), and the other end is fixed on the eccentric pressure plate (194); a toothed groove (1910) is provided on the eccentric pressure plate (194).

8. A hanging pumping machine as claimed in claim 7, characterized in that: A protrusion (198) is fixedly provided on one of the eccentric pressure plates (194) of the hanging assembly; and a concave block (199) matching with the protrusion (198) is fixedly provided on the other eccentric pressure plate (194).

9. A hanging pumping machine as claimed in any one of claims 1 to 8, characterized in that: Applicable to the maintenance of sucker rods (2) of crude oil extraction equipment.

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