Intelligently regulated and controlled oil pumping unit control method and high-strength wear-resistant oil rod structure thereof

Abstract

The invention relates to the technical field of oil pumping units, in particular to an intelligent regulation and control oil pumping unit control method and a high-strength wear-resisting oil rod structure thereof, an inner core part and a contact part composed of a plurality of arc-shaped plates are included, and a mounting plate used for mounting the contact part is arranged at the bottom end of the inner core part; a connecting assembly used for enhancing the stability of the arc-shaped plates installed on the installation plate is arranged between the installation plate and the arc-shaped plates, the arc-shaped plates are installed on the installation plate through the connecting assembly, the arc-shaped plates surround the inner core part, and a reminding assembly used for reminding a user that the contact part is abraded is arranged between the inner core part and each arc-shaped plate. One side of each arc-shaped plate is provided with a filling plate for filling gaps among the arc-shaped plates, and the face, away from the arc-shaped plates, of each filling plate is provided with a sealing structure for further improving the sealing performance of the contact part; and due to the arrangement of the reminding assembly, after the eccentric wear phenomenon of the sucker rod occurs, a worker can know and replace the sucker rod in time, and the purpose that the sucker rod is prevented from falling off is achieved.

Description

Technical Field

[0001] This application relates to the technical field of pumping units, and in particular to an intelligent control method for a pumping unit and a high-strength wear-resistant sucker rod structure therefor. Background Art

[0002] A pumping unit, i.e., a beam pumping unit, is one of the traditional oil production equipment. Its specific structure includes a frame, a base, a power system installed on the base, a transmission system connected to the power system, an execution system provided at the output end of the transmission system, and a pumping system provided at the output end of the execution system. The pumping system mainly includes a hanger installed at the output end of the execution system, a sucker rod installed at the other end of the hanger, a pump head installed on the ground, and a piston installed in the pump head. One end of the sucker rod away from the hanger is connected to the piston. Its usage method is as follows: start the power system, the power system drives the transmission system to drive the execution system to perform reciprocating up and down movements, so that the execution system drives the sucker rod through the hanger to drive the piston to perform reciprocating up and down movements in the pump head, changing the volume in the pump head, thereby pumping oil from underground.

[0003] However, after the pumping unit is used for a long time, the sucker rod is prone to eccentric wear, which may cause the sucker rod to fall off, making the pumping unit unable to work properly, and the fallen sucker rod also makes the subsequent replacement of the sucker rod more troublesome. Therefore, this application proposes an intelligent control method for a pumping unit and a high-strength wear-resistant sucker rod structure therefor, which is used to timely remind the staff to replace the sucker rod after the sucker rod shows eccentric wear, preventing the situation of the sucker rod falling off. Summary of the Invention

[0004] Aiming at the deficiencies of the prior art, the purpose of this application is to provide an intelligent control method for a pumping unit and a high-strength wear-resistant sucker rod structure therefor, which is used to timely remind the staff to replace the sucker rod after the sucker rod shows eccentric wear, preventing the situation of the sucker rod falling off.

[0005] The above object of the present application is achieved through the following technical solutions: A high-strength wear-resistant oil rod structure includes an inner core part and a contact part for contacting the pump head. The contact part is a cylinder composed of multiple arc-shaped plates. The bottom end of the inner core part is provided with a mounting plate for mounting the contact part. A reminder component for reminding the wear of the contact part is arranged between the inner core part and each arc-shaped plate. The reminder component includes a storage groove opened on the circumferential surface of the inner core part, a pressure sensor arranged inside the storage groove, an abutting column arranged on the side of the arc-shaped plate close to the inner core part for pressing the pressure sensor, and a support spring arranged inside the storage groove for applying a thrust to the arc-shaped plate. The pressure sensor is signal-connected to a display lamp. The display lamp is connected to a central control console. The display lamp is installed on the central control console. A warning component for enhancing the warning is arranged around the display lamp. The warning component includes a photosensitive sensor for detecting the brightness of the display lamp and an alarm connected to the photosensitive sensor. The photosensitive sensor is used to send an alarm signal to the alarm when the display lamp goes out.

[0006] By adopting the above technical solution, when installing the sucker rod, the inner core part is installed on the walking beam of the pumping unit, and one end of the contact part far away from the walking beam is installed in the pump head, and the bottom surface of the mounting plate is connected to the piston. Under normal conditions, the abutting column presses the pressure sensor. After the pressure sensor receives the pressure, it normally sends a signal to the console in the central control room, so that the console displays the signal of the normal operation of the sucker rod. When the staff uses the pumping unit for a long time and causes the sucker rod to be eccentrically worn, at this time, the eccentrically worn part is the contact part. Since the contact part is composed of multiple arc-shaped plates, one or more of the multiple arc-shaped plates are eccentrically worn. For the worn arc-shaped plate, the wear on its surface will inevitably cause its overall thickness to become smaller. At this time, the support spring will push the worn arc-shaped plate to move away from the inner core part, which causes the abutting column pressing the pressure sensor to no longer press the pressure sensor. At this time, the display light on the console goes out, and the staff on the console can know that the sucker rod is faulty, and can immediately turn off the pumping unit and replace the sucker rod in time, achieving the purpose of timely reminding the staff to replace the sucker rod after the sucker rod shows eccentric wear and preventing the sucker rod from falling off. Moreover, by setting the contact part as multiple arc-shaped plates, the staff can directly replace the eccentrically worn arc-shaped plate when replacing the sucker rod, and other arc-shaped plates that have not shown eccentric wear do not need to be replaced, thus saving the working cost of the pumping unit. Although the setting of the reminder component can timely remind the staff after the sucker rod shows eccentric wear, the notification method is to turn off the light, which may cause the staff on the console not to immediately notice that the display light goes out, resulting in the pumping unit not being able to stop working in time, causing the eccentrically worn sucker rod to fall off. The setting of the warning component solves this technical problem. Through the setting of the warning component, when the display light goes out and the photosensitive sensor does not detect the light source signal of the display light, it will send an alarm signal to the alarm, and at this time the alarm will give an alarm, so as to more obviously remind the staff of the sucker rod fault and enable the reminder component to more timely remind the staff of the sucker rod fault.

[0007] Further, a filling plate for filling the gap between the multiple arc-shaped plates is provided on one side of each of the multiple arc-shaped plates.

[0008] By adopting the above technical solution, the gap between the multiple arc-shaped plates is filled by the filling plate, preventing the petroleum from entering the inner core part through the gap between the multiple arc-shaped plates during the pumping of the sucker rod and affecting the normal operation of the pressure sensor.

[0009] Further, a sealing structure for further improving the sealing performance of the contact part is provided on the surface of the filling plate away from the arc-shaped plate.

[0010] Further, the sealing structure includes a sealing groove formed on the side of the filling plate away from the arc-shaped plate, a sealing plate disposed in the sealing groove, and a sealing spring disposed in the sealing groove for pushing the sealing plate to move out of the sealing groove. One end of the sealing spring is located in the sealing groove and fixedly connected to the filling plate, and the other end is fixedly connected to the sealing plate. The sealing groove penetrates the bottom surface of the filling plate.

[0011] By adopting the above technical solution, although the setting of the filling plate improves the sealing performance of the contact part, the contact part is composed of multiple arc-shaped plates spliced together. Since it is impossible to completely process a filling plate that perfectly fits the gaps between multiple arc-shaped plates in the prior art, there will still be fine gaps between multiple arc-shaped plates. The setting of the sealing structure solves this technical problem. Through the setting of the sealing structure, after multiple arc-shaped plates form the contact part, the sealing plates in the filling plates of each arc-shaped plate will be compressed. The compressed sealing plates will compress the sealing springs. At this time, the sealing springs will apply a thrust force to the sealing plates towards the outside of the sealing groove, causing the sealing plates to abut against another arc-shaped plate, thereby further filling the gaps between multiple arc-shaped plates and further improving the sealing performance of the contact part.

[0012] Further, a connecting component is provided between the mounting plate and the bottom end of the arc-shaped plate to enhance the stability of the arc-shaped plate mounted on the mounting plate.

[0013] Further, the connecting component includes a mounting groove formed on the upper surface of the mounting plate and penetrating the side surface of the mounting plate, clamping grooves formed on both sides of the mounting groove and penetrating the side surface of the mounting plate, and clamping pieces provided on both sides of the bottom end of the arc-shaped plate for inserting into the clamping grooves.

[0014] By adopting the above technical solution, the arc-shaped plate is mounted on the mounting plate through the connecting component. When installing the arc-shaped plate, the clamping pieces are inserted into the clamping grooves. In this way, when the pumping rod reciprocates up and down, the contact part will be clamped on the mounting plate, preventing the contact part from detaching from the mounting plate and affecting the pumping efficiency of the pumping unit.

[0015] Further, a wear-resistant coating material is applied to the side of the arc-shaped plate away from the inner core part.

[0016] By adopting the above technical solution, it is used to improve the wear-resistant effect of the contact part.

[0017] An intelligent control method for a pumping unit applied to the high-strength wear-resistant oil rod structure described in the above technical solution includes the following steps: S1. First, align the clamping pieces of multiple arc-shaped plates with the clamping grooves, and then push the arc-shaped plates towards the inner core part so that the bottom ends of the arc-shaped plates are located in the mounting grooves, and the clamping pieces are located in the clamping grooves. At this time, the abutting columns compress the support springs and press the pressure sensors; S2. When the sucker rod shows eccentric wear, the worn part is the contact part. Since the contact part is composed of multiple arc-shaped plates, one or more of the multiple arc-shaped plates are eccentrically worn. For the worn arc-shaped plate, the wear on its surface will inevitably cause its overall thickness to become smaller. At this time, the support spring will push the worn arc-shaped plate away from the inner core part, which causes the abutting column pressing the pressure sensor to no longer press the pressure sensor. S3. When the abutting column no longer presses the pressure sensor, the display light on the console goes out. After the display light goes out, the photosensitive sensor does not detect the light source signal of the display light, and it will send an alarm signal to the alarm. At this time, the alarm will give an alarm to remind the staff of the sucker rod failure.

[0018] In summary, the present application includes at least one of the following beneficial technical effects: Through the settings of the inner core part, the contact part and the reminder component, when the staff uses the pumping unit for a long time and causes eccentric wear of the sucker rod, the worn part is the contact part at this time. Since the contact part is composed of multiple arc-shaped plates, one or more of the multiple arc-shaped plates are eccentrically worn. For the worn arc-shaped plate, the wear on its surface will inevitably cause its overall thickness to become smaller. At this time, the support spring will push the worn arc-shaped plate away from the inner core part, which causes the abutting column pressing the pressure sensor to no longer press the pressure sensor. At this time, the display light on the console goes out, and the staff on the console can know the failure of the sucker rod, and can immediately turn off the pumping unit and replace the sucker rod in time, achieving the purpose of timely reminding the staff to replace the sucker rod after the sucker rod shows eccentric wear and preventing the situation of the sucker rod falling off. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 is a schematic structural diagram of the sucker rod; Figure 2 is along Figure 1 the A-A line in Figure 3 is Figure 2 the enlarged view of part A in Figure 4 is a specific structural diagram of the console; Figure 5 is a specific structural diagram of the arc-shaped plate; Figure 6 is the enlarged view of part B in Figure 7 is along Figure 6 the B-B line in Figure 8 is Figure 1 the enlarged view of part C in

[0020] Reference numerals: 1, sucker rod; 10, inner core part; 11, arc plate; 12, mounting plate; 2, reminder assembly; 20, storage groove; 21, pressure sensor; 22, abutting post; 23, support spring; 3, central control console; 30, display lamp; 4, warning assembly; 40, photosensitive sensor; 41, alarm; 5, filling plate; 6, sealing structure; 60, sealing groove; 61, sealing plate; 62, sealing spring; 7, connecting assembly; 70, mounting groove; 71, clamping groove; 72, clamping piece. Detailed implementation manners

[0021] The present application will be further described in detail below with reference to the accompanying drawings.

[0022] Example, referring to Figure 1 , Figure 2 , Figure 3 and Figure 4 , a high-strength wear-resistant oil rod structure, including an inner core part 10 and a contact part for contacting the pump head, the contact part being a cylinder composed of a plurality of arc plates 11, the bottom end of the inner core part 10 being provided with a mounting plate 12 for mounting the contact part, and a reminder assembly 2 for reminding that the contact part is worn is arranged between the inner core part 10 and each arc plate 11. The reminder assembly 2 includes a storage groove 20 opened on the circumferential surface of the inner core part 10, a pressure sensor 21 arranged inside the storage groove 20, an abutting post 22 arranged on the surface of the arc plate 11 close to the inner core part 10 for pressing the pressure sensor 21, and a support spring 23 arranged inside the storage groove 20 for applying a thrust to the arc plate 11. The pressure sensor 21 is signal-connected to a display lamp 30, the display lamp 30 is connected to a central control console 3, and the display lamp 30 is mounted on the central control console 3.

[0023] Under normal working conditions, the abutting post 22 continuously presses the pressure sensor 21. After the pressure sensor 21 receives a stable pressure signal, it will immediately send a signal of normal operation to the central control console 3. At this time, the indicator light on the central control console 3 lights up, indicating that the sucker rod 1 system is in good condition. However, if the sucker rod 1 shows eccentric wear due to long-term operation of the pumping unit, part or all of the arc-shaped plates 11 of the contact part will be affected. Since the design of these arc-shaped plates 11 allows independent wear, the eccentric wear will cause their thickness to decrease. At this time, the function of the support spring 23 appears. The support spring 23 will push the worn arc-shaped plate 11 to move slightly outwards, thereby relieving the pressure on the pressure sensor 21. This change will immediately trigger the display light 30 on the central control console 3 to go out, prompting the staff that there is a fault in the sucker rod 1 system. Based on this, the staff can quickly take action, shut down the pumping unit, and replace the damaged sucker rod 1 in time or replace the worn arc-shaped plate 11 alone. The setting of the above method can not only timely remind the staff when the sucker rod 1 shows eccentric wear, effectively prevent safety accidents caused by the falling off of the sucker rod 1, but also make the maintenance work more efficient and economical through the modular design of the contact part. Only the worn part needs to be replaced, greatly saving the operation and maintenance cost of the pumping unit.

[0024] Although the reminder component 2 can quickly send a warning to the staff of the central control console 3 by extinguishing the display light 30 when the sucker rod 1 encounters eccentric wear, there may be a risk of being ignored in this single visual reminder method. Especially in a busy or poorly lit working environment, the staff may not immediately notice the extinguishing of the display light 30, thus delaying the response to the pumping unit failure and increasing the risk of the sucker rod 1 falling off due to continuous eccentric wear. To solve this technical problem, in this embodiment, a set of warning components 4 is added around each display light 30 of the central control console 3. The warning component 4 includes a photosensitive sensor 40 and an alarm 41, which are connected by a circuit system. The photosensitive sensor 40, as the core component 4 of the warning component, has a highly sensitive light signal detection ability. The photosensitive sensor 40 monitors the state of the display light 30. Under normal operating conditions, when the display light 30 is on, the photosensitive sensor 40 can accurately capture the light source signal and remain silent. However, once the sucker rod 1 undergoes eccentric wear and causes the display light 30 to go out, the photosensitive sensor 40 will immediately sense this change because the photosensitive sensor 40 no longer receives the light signal from the display light 30. Immediately afterwards, the photosensitive sensor 40 will quickly respond and send a clear alarm signal to the alarm 41. The alarm 41, as the output end of the warning component 4, will immediately start and emit a clear and loud alarm sound once it receives the alarm signal. This audible alarm is undoubtedly more intuitive and difficult to ignore compared to a simple light change. The alarm 41 can attract the attention of the staff of the central control console 3 in the first time, prompting them to immediately take action to check and handle the fault situation of the sucker rod 1.

[0025] Through the setting of the warning component 4, this embodiment not only retains the function of the reminder component 2 to give a preliminary warning through the change of the light, but also further enhances the immediacy and effectiveness of the warning. Even in a complex and changeable working environment, it can ensure that the staff can quickly detect the abnormal situation of the sucker rod 1, so as to stop the operation of the pumping unit in time, effectively avoiding potential safety risks such as the falling off of the sucker rod 1 caused by eccentric wear, and further improving the overall safety and reliability of the pumping unit.

[0026] Refer to Figure 5 、 Figure 6 and Figure 7 In this embodiment, a filling plate 5 for filling the gaps between the multiple arc-shaped plates 11 is provided on one side of each of the multiple arc-shaped plates 11. By filling the gaps between the multiple arc-shaped plates 11 with the filling plate 5, it is possible to prevent the petroleum from entering the inner core part 10 through the gaps between the multiple arc-shaped plates 11 during the pumping process of the sucker rod 1 and affecting the normal operation of the pressure sensor 21.

[0027] Although the setting of the filling plate 5 improves the sealing performance of the contact part, the contact part is composed of multiple arc-shaped plates 11 spliced together. Since the filling plate 5 that can perfectly fit the gaps between the multiple arc-shaped plates 11 cannot be completely processed in the prior art, there will still be fine gaps between the multiple arc-shaped plates 11. To solve this technical problem, a sealing structure 6 for further improving the sealing performance of the contact part is provided on the surface of the filling plate 5 away from the arc-shaped plate 11. The sealing structure 6 includes a sealing groove 60 opened on the surface of the filling plate 5 away from the arc-shaped plate 11, a sealing plate 61 arranged in the sealing groove 60, and a sealing spring 62 arranged in the sealing groove 60 for pushing the sealing plate 61 to move out of the sealing groove 60. One end of the sealing spring 62 is located in the sealing groove 60 and fixedly connected to the filling plate 5, and the other end is fixedly connected to the sealing plate 61. The sealing groove 60 penetrates the bottom surface of the filling plate 5. Through the setting of the sealing structure 6, after the multiple arc-shaped plates 11 form the contact part, the sealing plate 61 in the filling plate 5 of each arc-shaped plate 11 will be compressed, and the compressed sealing plate 61 will compress the sealing spring 62. At this time, the sealing spring 62 will exert a thrust on the sealing plate 61 towards the outside of the sealing groove 60, so that the sealing plate 61 abuts against another arc-shaped plate 11, thereby further filling the gaps between the multiple arc-shaped plates 11 and further improving the sealing performance of the contact part.

[0028] Refer to Figure 8In this embodiment, a connection component 7 is provided between the mounting plate 12 and the bottom end of the arc-shaped plate 11 to enhance the stability of the arc-shaped plate 11 mounted on the mounting plate 12. The connection component 7 includes a mounting groove 70 opened on the upper surface of the mounting plate 12 and penetrating the side surface of the mounting plate 12, clamping grooves 71 opened on both sides of the mounting groove 70 and penetrating the side surface of the mounting plate 12, and clamping pieces 72 provided on both sides of the bottom end of the arc-shaped plate 11 for inserting into the clamping grooves 71. The arc-shaped plate 11 is mounted on the mounting plate 12 through the connection component 7. When the arc-shaped plate 11 is mounted, the clamping pieces 72 are inserted into the clamping grooves 71, so that when the sucker rod 1 reciprocates up and down, the contact part is stuck, preventing the contact part from detaching from the mounting plate 12 and affecting the pumping efficiency of the pumping unit.

[0029] In this embodiment, a wear-resistant coating material is applied to the surface of the arc-shaped plate 11 away from the inner core part 10 to improve the wear resistance of the contact part.

[0030] Specific implementation process: First, align the clamping pieces 72 of multiple arc-shaped plates 11 with the clamping grooves 71, and then push the arc-shaped plates 11 towards the inner core part 10 so that the bottom ends of the arc-shaped plates 11 are located in the mounting grooves 70 and the clamping pieces 72 are located in the clamping grooves 71. At this time, the abutting column 22 compresses the support spring 23 to press the pressure sensor 21. When the staff uses the pumping unit for a long time and the sucker rod 1 is eccentrically worn, the eccentric wear occurs at the contact part. Since the contact part is composed of multiple arc-shaped plates 11, one or more of the multiple arc-shaped plates 11 are eccentrically worn. For the worn arc-shaped plate 11, the wear on its surface will inevitably cause its overall thickness to become smaller. At this time, the support spring 23 will push the worn arc-shaped plate 11 to move away from the inner core part 10, which causes the abutting column 22 pressing the pressure sensor 21 to no longer press the pressure sensor 21. At this time, the display lamp 30 on the console 3 goes out. After the display lamp 30 goes out, the photosensitive sensor 40 does not detect the light source signal of the display lamp 30, and will send an alarm signal to the alarm 41. At this time, the alarm 41 will give an alarm to remind the staff of the failure of the sucker rod 1.

[0031] The embodiments of this specific implementation manner are all preferred embodiments of this application, and do not limit the protection scope of the application accordingly. Therefore, all equivalent changes made according to the structure, shape, and principle of this application should be covered within the protection scope of this application.

Claims

1. A high-strength wear-resistant oil rod structure, characterized in that, It includes a core part (10) and a contact part for contacting the pump head. The contact part is a cylinder composed of multiple arc-shaped plates (11). An installation plate (12) for installing the contact part is arranged at the bottom end of the core part (10). A reminder component (2) for reminding the wear of the contact part is arranged between the core part (10) and each arc-shaped plate (11). The reminder component (2) includes a receiving groove (20) opened on the circumferential surface of the core part (10), a pressure sensor (21) arranged inside the receiving groove (20), an abutting column (22) arranged on the side of the arc-shaped plate (11) close to the core part (10) for pressing the pressure sensor (21), and a support spring (23) arranged inside the receiving groove (20) for applying a thrust to the arc-shaped plate (11). The pressure sensor (21) is signal-connected to a display lamp (30). The display lamp (30) is connected to a central control console (3). The display lamp (30) is installed on the central control console (3). A warning component (4) for enhancing the warning is arranged around the display lamp (30). The warning component (4) includes a photosensitive sensor (40) for detecting the light of the display lamp (30) and an alarm (41) connected to the photosensitive sensor (40). The photosensitive sensor (40) is used to send an alarm signal to the alarm (41) when the display lamp (30) goes out.

2. The high-strength wear-resistant sucker rod structure according to claim 1, characterized in that On one side of each of the multiple arc-shaped plates (11), a filling plate (5) for filling the gap between the multiple arc-shaped plates (11) is provided.

3. The structure of a high-strength wear-resistant sucker rod according to claim 2, characterized in that A sealing structure (6) for further improving the sealing performance of the contact part is arranged on the side of the filling plate (5) away from the arc-shaped plate (11).

4. The structure of a high-strength wear-resistant sucker rod according to claim 3, wherein, The sealing structure (6) includes a sealing groove (60) opened on the side of the filling plate (5) away from the arc-shaped plate (11), a sealing plate (61) arranged in the sealing groove (60), and a sealing spring (62) arranged in the sealing groove (60) for pushing the sealing plate (61) to move out of the sealing groove (60). One end of the sealing spring (62) is located inside the sealing groove (60) and fixedly connected to the filling plate (5), and the other end is fixedly connected to the sealing plate (61). The sealing groove (60) penetrates the bottom surface of the filling plate (5).

5. The high-strength wear-resistant sucker rod structure according to claim 1, characterized in that A connection component (7) for enhancing the stability of the arc-shaped plate (11) installed on the installation plate (12) is arranged between the installation plate (12) and the bottom end of the arc-shaped plate (11).

6. The high-strength wear-resistant sucker rod structure according to claim 5, wherein, The connection component (7) includes an installation groove (70) opened on the upper surface of the installation plate (12) and penetrating the side surface of the installation plate (12), clamping grooves (71) opened on both sides of the installation groove (70) and penetrating the side surface of the installation plate (12), and clamping pieces (72) arranged on both sides of the bottom end of the arc-shaped plate (11) for inserting into the clamping grooves (71).

7. The structure of a high-strength wear-resistant oil rod according to claim 1, characterized in that, The side of the arc-shaped plate (11) away from the core part (10) is coated with a wear-resistant coating material.

8. An intelligent control method for a pumping unit applied to the high-strength wear-resistant oil rod structure according to any one of claims 1-7, comprising the following steps: S1. First, align the clamping pieces (72) of multiple arc-shaped plates (11) with the clamping grooves (71), and then push the arc-shaped plates (11) towards the inner core part (10) so that the bottom ends of the arc-shaped plates (11) are located in the installation grooves (70) and the clamping pieces (72) are located in the clamping grooves (71). At this time, the abutting columns (22) compress the support springs (23) to press the pressure sensors (21). S2. When the sucker rod (1) shows eccentric wear, the eccentrically worn part is the contact part at this time. Since the contact part is composed of multiple arc-shaped plates (11), one or more of the multiple arc-shaped plates (11) are eccentrically worn. For the worn arc-shaped plate (11), the overall thickness thereof will inevitably become smaller due to wear on its surface. At this time, the support spring (23) will push the worn arc-shaped plate (11) to move away from the inner core part (10), which causes the abutting column (22) pressing the pressure sensor (21) to no longer press the pressure sensor (21). S3. When the abutting column (22) no longer presses the pressure sensor (21), the display lamp (30) on the console (3) goes out. After the display lamp (30) goes out, the photosensitive sensor (40) does not detect the light source signal of the display lamp (30), and will send an alarm signal to the alarm (41). At this time, the alarm (41) will give an alarm to remind the staff that the sucker rod (1) is faulty.

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