Oil well pump experimental device

Abstract

The utility model discloses an oil well pump experiment device which comprises a fixed plate, a movable plate is installed on the top of the fixed plate, a cylinder body is installed on the top of the movable plate, a pump cylinder is arranged in an inner cavity of the cylinder body, a centralizing plug is installed at the bottom of the pump cylinder, and a centralizing connector is installed on the outer side of the pump cylinder. A plunger assembly is slidably installed at the top of the pump cylinder, a connecting strip is movably installed at the top of the plunger assembly, a stand column is fixedly welded to the top of the fixing plate, and a speed regulating motor is installed at the top of the stand column. The adjustable-speed motor drives the rotating rod to rotate, the rotating rod drives the crankshaft to rotate, the crankshaft drives the circular shaft to rotate synchronously, the circular shaft drives the connecting strip to move, the connecting strip drives the movable part to move, the movable part pulls the plunger assembly to move, and along with continuous rotation of the crankshaft, the plunger assembly is pulled to move up and down repeatedly, so that the action of the oil well pump during working is simulated.

Description

Technical Field

[0001] This utility model relates to the field of oil pump experimental technology, specifically to an oil pump experimental device. Background Technology

[0002] A pumping unit is a downhole device that lifts crude oil from a well to the surface, driven by a pumping unit. A typical pumping unit mainly consists of four parts: the pump barrel, the suction valve, the piston, and the discharge valve. Based on how the pumping unit is fixed in the well, it can be divided into tubular pumps and rod pumps. As a member of a rod pumping system, the pumping unit operates thousands of meters underground, and its actual working condition is unknown and cannot be replicated. Therefore, this application proposes an experimental apparatus for a pumping unit to simulate its operation and obtain information such as its working state and conditions. Utility Model Content

[0003] The purpose of this utility model is to provide an oil pump experimental device to solve the problem mentioned in the background art. This technical solution can simulate the operation of an oil pump and obtain information such as the working status and operating conditions of the oil pump.

[0004] To achieve the above objectives, this utility model provides the following technical solution: an oil pump experimental device, comprising a fixed plate, a movable plate mounted on the top of the fixed plate, a cylinder mounted on the top of the movable plate, a pump barrel disposed in the inner cavity of the cylinder, a straightening plug mounted at the bottom of the pump barrel, and a straightening connector mounted on the outer side of the pump barrel, a plunger assembly slidably mounted on the top of the pump barrel, a connecting strip movably mounted on the top of the plunger assembly, a column welded and fixedly mounted on the top of the fixed plate, a speed-regulating motor mounted on the top of the column, a rotating rod fixedly mounted on the outer side of the speed-regulating motor, a crankshaft fixedly mounted at one end of the rotating rod, and the crankshaft movably connected to the connecting strip.

[0005] Preferably, the straightening connector includes a sleeve, which is inserted into the top of the cylinder and sleeved on the outside of the pump cylinder. Several lead screws are threaded onto the outer wall of the sleeve, and one end of each lead screw is fixedly installed with an abutment head, which fits against the outer wall of the pump cylinder.

[0006] Preferably, a handwheel is fixedly installed at the end of the lead screw away from the contact head, and the outer wall of the handwheel is provided with a number of anti-slip textures.

[0007] Preferably, a base is fixedly installed at the bottom of the fixing plate.

[0008] Preferably, the movable plate has two horizontal grooves, and two fastening bolts are movably installed through the inner cavity of each of the two horizontal grooves. The top of the fixed plate has multiple positioning holes, and the bottom end of the fastening bolt is threaded into the inner cavity of the corresponding positioning hole.

[0009] Preferably, a motor base is fixedly installed on the top of the column, the speed-regulating motor is fixedly installed on the motor base, and one end of the rotating rod passes through the motor base and is movably connected to the motor base.

[0010] Preferably, a movable component is movably mounted at the bottom of the connecting strip, the movable component is fixedly connected to the top of the plunger assembly, and a round shaft is rotatably connected to the connecting strip, the round shaft being fixedly connected to the outer wall of the crankshaft.

[0011] Compared with the prior art, the beneficial effects of this utility model are:

[0012] By incorporating a speed-regulating motor, connecting bars, and a plunger assembly, the experiment requires driving the speed-regulating motor to rotate the rotating rod, which in turn rotates the crankshaft. The crankshaft then rotates the circular shaft synchronously, which in turn moves the connecting bar. The connecting bar then moves the movable parts, which in turn pull the plunger assembly. As the crankshaft continues to rotate, the plunger assembly is pulled and moved up and down repeatedly, thus simulating the operation of an oil pump. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the external structure of this utility model;

[0014] Figure 2 This is a partial cross-sectional structural diagram of the present invention;

[0015] Figure 3 This is a schematic diagram of the connection mechanism at the pump barrel, plunger assembly, and other components of this utility model.

[0016] Figure 4 This is a schematic diagram of the structure of the straightening joint of this utility model;

[0017] Figure 5 This is a schematic diagram of the structure on the fixing plate of this utility model.

[0018] In the diagram: 1. Fixed plate; 2. Movable plate; 3. Horizontal groove; 4. Fastening bolt; 5. Positioning hole; 6. Base; 7. Cylinder body; 8. Pump barrel; 9. Plunger assembly; 10. Straightening plug; 11. Movable part; 12. Connecting strip; 13. Round shaft; 14. Crankshaft; 15. Rotating rod; 16. Speed ​​regulating motor; 17. Motor base; 18. Column; 19. Straightening connector; 191. Sleeve; 192. Handwheel; 193. Anti-slip texture; 194. Lead screw; 195. Contact head. Detailed Implementation

[0019] 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.

[0020] Please see Figures 1 to 5 This utility model provides a technical solution: an oil pump experimental device, including a fixed plate 1, a movable plate 2 installed on the top of the fixed plate 1, a cylinder 7 installed on the top of the movable plate 2, a pump barrel 8 arranged in the inner cavity of the cylinder 7, a straightening plug 10 installed at the bottom of the pump barrel 8, the straightening plug 10 is used to initially limit the installation between the pump barrel 8 and the cylinder 7, and a straightening connector 19 is installed on the outside of the pump barrel 8, the straightening connector 19 is used to further limit the installation between the pump barrel 8 and the cylinder 7, improving the stability of the pump barrel 8 installation, a plunger assembly 9 is slidably installed on the top of the pump barrel 8, a connecting strip 12 is movably installed on the top of the plunger assembly 9, a column 18 is welded and fixedly installed on the top of the fixed plate 1, a speed regulating motor 16 is installed on the top of the column 18, a rotating rod 15 is fixedly installed on the outside of the speed regulating motor 16, a crankshaft 14 is fixedly installed at one end of the rotating rod 15, and the crankshaft 14 is movably connected to the connecting strip 12.

[0021] Please see Figure 2 and Figure 4 The straightening connector 19 includes a sleeve 191, which is inserted into the top of the cylinder 7 and sleeved on the outside of the pump cylinder 8. Several lead screws 194 are threaded on the outer wall of the sleeve 191. Each lead screw 194 has a fixed contact head 195 at one end. The contact head 195 fits against the outer wall of the pump cylinder 8. By rotating the lead screw 194, the contact head 195 is driven to abut against the outer wall of the pump cylinder 8, thereby limiting the position of the pump cylinder 8.

[0022] Please see Figure 4 A handwheel 192 is fixedly installed at the end of the lead screw 194 away from the contact head 195. Several anti-slip textures 193 are provided on the outer wall of the handwheel 192. By rotating the handwheel 192, the lead screw 194 is driven to rotate, thereby completing the subsequent limit operation. The multiple anti-slip textures 193 can increase friction and improve the force-bearing effect.

[0023] Please see Figure 1 and Figure 2 A base 6 is fixedly installed at the bottom of the fixed plate 1. The base 6 works in conjunction with the fixed plate 1 to improve the overall stability of the equipment.

[0024] Please see Figure 2 and Figure 5The movable plate 2 has two horizontal grooves 3, and two fastening bolts 4 are installed through the inner cavity of each horizontal groove 3. The top of the fixed plate 1 has multiple positioning holes 5, and the bottom end of the fastening bolt 4 is threaded into the inner cavity of the corresponding positioning hole 5. By threading the fastening bolt 4 into the positioning hole 5, the movable plate 2 and the fixed plate 1 can be fixedly installed and connected, which is convenient to operate and easy to disassemble later.

[0025] Please see Figure 2 and Figure 3 A motor base 17 is fixedly installed on the top of the column 18, and a speed-regulating motor 16 is fixedly installed on the motor base 17. One end of the rotating rod 15 passes through the motor base 17 and is movably connected to the motor base 17. The setting of the motor base 17 makes the operation of the speed-regulating motor 16 more stable.

[0026] Please see Figure 2 and Figure 3 A movable part 11 is movably installed at the bottom of the connecting strip 12. The movable part 11 is fixedly connected to the top of the plunger assembly 9. A round shaft 13 is rotatably connected to the connecting strip 12. The round shaft 13 is fixedly connected to the outer wall of the crankshaft 14. This arrangement allows the connecting strip 12 to be movably installed between the plunger assembly 9 and the crankshaft 14. The connecting strip 12 can drive the plunger assembly 9 to move up and down repeatedly as the crankshaft 14 rotates.

[0027] Working principle: When using this application, first connect the lower end of the oil pump to be tested to the straightening plug 10, then put the oil pump and the straightening plug 10 into the cylinder 7 together. Use the straightening plug 10 to initially limit the lower part of the oil pump. Then, insert the straightening connector 19 into the cylinder 7 and rotate multiple handwheels 192, so that the handwheels 192 drive the lead screw 194 to rotate. Through the threaded connection between the lead screw 194 and the outer wall of the sleeve 191, the lead screw 194 pushes the contact head 195 to press against the outer wall of the pump barrel 8 to achieve positioning. At this time, the double straightening effect of the straightening connector 19 and the straightening plug 10 makes the oil pump more stable inside the cylinder 7.

[0028] The variable speed motor 16 can then be driven to rotate the rotating rod 15, which in turn drives the crankshaft 14 to rotate. The crankshaft 14 drives the round shaft 13 to rotate synchronously, which in turn drives the connecting bar 12 to move. The connecting bar 12 then drives the movable part 11 to move, which in turn pulls the plunger assembly 9 to move. As the crankshaft 14 continues to rotate, the plunger assembly 9 is pulled to move up and down repeatedly, thus simulating the operation of an oil pump.

[0029] 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. An experimental apparatus for an oil pump, comprising a fixed plate (1), characterized in that: A movable plate (2) is installed on the top of the fixed plate (1), a cylinder (7) is installed on the top of the movable plate (2), a pump cylinder (8) is provided in the inner cavity of the cylinder (7), a straightening plug (10) is installed at the bottom of the pump cylinder (8), and a straightening connector (19) is installed on the outside of the pump cylinder (8). A plunger assembly (9) is slidably installed on the top of the pump cylinder (8), and a connecting strip (12) is movably installed on the top of the plunger assembly (9). A column (18) is welded and fixedly installed on the top of the fixed plate (1), a speed regulating motor (16) is installed on the top of the column (18), a rotating rod (15) is fixedly installed on the outside of the speed regulating motor (16), a crankshaft (14) is fixedly installed at one end of the rotating rod (15), and the crankshaft (14) is movably connected to the connecting strip (12).

2. The experimental apparatus for an oil pump according to claim 1, characterized in that: The straightening connector (19) includes a sleeve (191), which is inserted into the top of the cylinder (7) and sleeved on the outside of the pump cylinder (8). Several lead screws (194) are threaded on the outer wall of the sleeve (191), and one end of each lead screw (194) is fixedly installed with an abutment (195), which fits against the outer wall of the pump cylinder (8).

3. The experimental apparatus for an oil pump according to claim 2, characterized in that: A handwheel (192) is fixedly installed at the end of the lead screw (194) away from the contact head (195), and a number of anti-slip patterns (193) are formed on the outer wall of the handwheel (192).

4. The experimental apparatus for an oil pump according to claim 1, characterized in that: The base (6) is fixedly installed at the bottom of the fixing plate (1).

5. The experimental apparatus for an oil pump according to claim 1, characterized in that: The movable plate (2) has two horizontal grooves (3), and two fastening bolts (4) are installed through the inner cavity of each of the two horizontal grooves (3). The top of the fixed plate (1) has multiple positioning holes (5), and the bottom end of the fastening bolts (4) is threaded into the inner cavity of the corresponding positioning holes (5).

6. The experimental apparatus for an oil pump according to claim 1, characterized in that: A motor base (17) is fixedly installed on the top of the column (18), and the speed-regulating motor (16) is fixedly installed on the motor base (17). One end of the rotating rod (15) passes through the motor base (17) and is movably connected to the motor base (17).

7. The experimental apparatus for an oil pump according to claim 1, characterized in that: A movable part (11) is movably installed at the bottom of the connecting strip (12). The movable part (11) is fixedly connected to the top of the plunger assembly (9). A round shaft (13) is rotatably connected to the connecting strip (12). The round shaft (13) is fixedly connected to the outer wall of the crankshaft (14).

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