Hydraulic wrench pump station and its control system and method

By introducing bolt tightening torque sensors and IoT modules into the hydraulic wrench pump station, the automatic collection and transmission of bolt tightening data is realized, which solves the problem that cannot be automatically controlled in the existing technology, and realizes automatic control and data management of hydraulic wrench pump stations.

CN111608996BActive Publication Date: 2025-07-11HTS (BEIJING) E&E CORP LTD
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Patent Information

Application Number
CN202010376164.X
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2020-05-07
Publication Date
2025-07-11
Estimated Expiration
2040-05-07

AI Technical Summary

Technical Problem

Existing hydraulic wrench pump stations cannot automatically collect and transmit bolt fastening data to the database, resulting in the inability to achieve automatic control.

Method used

Bolt tightening torque sensor, wireless communication module, PLC control module, relay and Internet of Things module are used to upload bolt tightening torque data to the database through wireless data, and automatically control it through the control system.

Benefits of technology

It realizes automatic collection and transmission of bolt fastening data, realizes automatic control of hydraulic wrench pump station, and improves the efficiency and accuracy of data management.

✦ Generated by Eureka AI based on patent content.

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Patent Text Reader

Abstract

The present invention discloses a hydraulic wrench pump station and its control system and method. The hydraulic wrench pump station includes an oil tank, with a motor arranged above the oil tank. The motor drives a hydraulic pump, and the hydraulic pump is connected to an electromagnetic directional control valve through a first oil circuit. The electromagnetic directional control valve is also connected to one end of a fourth oil circuit, and the other end of the fourth oil circuit is connected to the oil tank. A cooling device is connected to the fourth oil circuit. It also includes a relay, a PLC control module, a bolt tightening torque sensor, and a wireless communication module. The relay is connected to the PLC control module, the PLC control module is connected to the motor, and the bolt tightening torque sensor is connected to the wireless communication module. The present invention also includes the control system and method of the above-mentioned hydraulic wrench pump station. Its purpose is to provide a hydraulic wrench pump station and its control system and method that can automatically collect data and transmit it to a database to achieve automatic control.
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Description

Technical Field

[0001] The present invention relates to the field of hydraulic pump stations, and particularly to a hydraulic wrench pump station for driving a hydraulic wrench, and its control system and method. Background Art

[0002] Nowadays, more and more large flange bolts in oil refining, wind power, heavy equipment, etc. are tightened by hydraulic wrenches, and the hydraulic wrenches use a hydraulic wrench pump station as a power source. Traditional hydraulic wrench pump stations can only provide a power source and cannot collect and upload the tightening data of flange bolts to a background cloud database for management. Existing hydraulic wrench pump stations usually use pen and paper to record the bolt tightening data and then enter it into the database. Some existing simpler intelligent wrench pump stations can use a USB flash drive as a transmission medium to copy data and then enter it into the database, but the operation is not easy and manual data copying is required, especially when the on-site working conditions do not allow the use of computers, etc. This results in the inability of traditional hydraulic wrench pump stations to achieve automatic control. Summary of the Invention

[0003] The technical problem to be solved by the present invention is to provide a hydraulic wrench pump station, its control system and method that can automatically collect data and transmit it to a database to achieve automatic control.

[0004] The hydraulic wrench pump station in the present invention includes an oil tank, an electric motor is provided above the oil tank, the electric motor drives a hydraulic pump located in the oil tank, the hydraulic pump is connected to an electromagnetic directional control valve through a first oil circuit, the electromagnetic directional control valve is used to connect one end of a second oil circuit and a third oil circuit, the other ends of the second oil circuit and the third oil circuit are used to connect to a hydraulic wrench, the electromagnetic directional control valve is also connected to one end of a fourth oil circuit, the other end of the fourth oil circuit is connected to the oil tank, and a cooling device is connected to the fourth oil circuit.

[0005] It further includes a relay, a PLC control module, a bolt tightening torque sensor and a wireless communication module. The relay is connected to the PLC control module, the PLC control module is connected to the electric motor, the relay is used to receive a status signal and output a first control signal to the PLC control module, the PLC control module is used to be controlled to output a second control signal to the electric motor, the bolt tightening torque sensor is connected to the wireless communication module, the bolt tightening torque sensor is used to collect bolt tightening torque data and output the collected bolt tightening torque data to the wireless communication module, and the wireless communication module is used to convert the bolt tightening torque data into wireless data and upload it to the database.

[0006] In the hydraulic wrench pump station of the present invention, a fifth oil passage and a sixth oil passage are respectively connected between the first oil passage and the fourth oil passage. An overflow valve is connected to the fifth oil passage, and a proportional overflow valve is connected to the sixth oil passage. The connection points of the fifth oil passage with the first oil passage and the fourth oil passage are respectively a first connection point and a second connection point. The connection points of the sixth oil passage with the first oil passage and the fourth oil passage are respectively a third connection point and a fourth connection point. The first connection point and the third connection point are sequentially arranged on the first oil passage along the direction from the hydraulic pump to the electromagnetic directional valve. The second connection point and the fourth connection point are located between the electromagnetic directional valve and the cooling device. The fourth connection point and the second connection point are sequentially arranged on the fourth oil passage along the direction from the electromagnetic directional valve to the cooling device.

[0007] In the hydraulic wrench pump station of the present invention, a seventh oil passage is connected between the third oil passage and the fourth oil passage. A safety valve is connected to the seventh oil passage. The connection point of the seventh oil passage with the fourth oil passage is a fifth connection point. The fifth connection point is located between the fourth connection point and the electromagnetic directional valve.

[0008] In the hydraulic wrench pump station of the present invention, a pressure sensor is connected to the first oil passage. The pressure sensor is connected to the third connection point.

[0009] The hydraulic wrench pump station of the present invention further includes a frame. The fuel tank is arranged on the frame. The motor, electromagnetic directional valve, pressure sensor, cooling device, safety valve, overflow valve and proportional overflow valve are arranged on the cover plate of the fuel tank.

[0010] In the hydraulic wrench pump station of the present invention, the electromagnetic directional valve is connected to a valve block. The valve block is connected to a transition block. A quick connector is connected to the transition block. Oil passages are provided in both the valve block and the transition block. The electromagnetic directional valve and the quick connector are communicated through the oil passage. The quick connector is used to connect the second oil passage and the third oil passage.

[0011] In the hydraulic wrench pump station of the present invention, a liquid crystal display screen is arranged above the frame. Side plates are respectively arranged on both opposite sides in the middle of the frame. Rollers are arranged at the bottom of the frame. An electrical box is further arranged on the cover plate of the fuel tank.

[0012] In the hydraulic wrench pump station of the present invention, the cooling device is an air-cooling device.

[0013] The control system of the above hydraulic wrench pump station in the present invention includes a third-party Internet of Things module, a flange intelligent management subsystem, and a flange intelligent fastening subsystem that are connected in sequence. The third-party Internet of Things module is respectively connected to the wireless communication module and the relay of the hydraulic wrench pump station. The third-party Internet of Things module is used to receive the wireless data uploaded by the wireless communication module and upload it to the flange intelligent management subsystem. The third-party Internet of Things module is also used to receive the first instruction issued by the flange intelligent management subsystem, translate it into a recognizable status signal, and then issue it to the relay. The flange intelligent management subsystem is used to calculate the wireless data uploaded by the third-party Internet of Things module and upload the calculation result to the flange intelligent fastening subsystem. The flange intelligent management subsystem is also used to receive the second instruction issued by the flange intelligent fastening subsystem, convert it into a first instruction, and issue it to the third-party Internet of Things module. The flange intelligent fastening subsystem is used to receive the calculation result uploaded by the flange intelligent management subsystem, make a judgment based on the calculation result, and then issue a first instruction to the flange intelligent management subsystem.

[0014] The control method of the above hydraulic wrench pump station in the present invention includes the following steps:

[0015] Use a bolt tightening torque sensor to collect bolt tightening torque data and output it to the wireless communication module.

[0016] Use the wireless communication module to convert the bolt tightening torque data into wireless data.

[0017] Upload the wireless data to the flange intelligent management subsystem through the third-party Internet of Things module.

[0018] Use the flange intelligent management subsystem to calculate the wireless data and upload the calculation result to the flange intelligent fastening subsystem.

[0019] Use the flange intelligent fastening subsystem to make a judgment based on the calculation result and then issue a second instruction to the flange intelligent management subsystem.

[0020] Use the flange intelligent management subsystem to convert the second instruction into a first instruction and issue it to the third-party Internet of Things module.

[0021] Use the third-party Internet of Things module to translate the first instruction into a recognizable status signal and issue it to the relay.

[0022] Use the relay to convert the status signal into a first control signal and output it to the PLC control module.

[0023] Use the PLC control module to convert the first control signal into a second control signal and output it to the motor to control the working state of the motor.

[0024] The difference between the hydraulic wrench pump station and its control system and method of the present invention and the prior art lies in that the bolt tightening torque sensor in the present invention is used to collect bolt tightening torque data and output the collected bolt tightening torque data to the wireless communication module. The wireless communication module is used to convert the bolt tightening torque data into wireless data and upload it to the database. The status signal generated after being processed by the database is output to the relay, and the relay outputs a first control signal to the PLC control module. The PLC control module is used to output a second control signal to the motor in a controlled manner to control the working state of the motor, thereby realizing the automatic control of the pump station. In the present invention, the process of the database processing data is as follows: uploading the wireless data to the flange intelligent management subsystem through a third-party Internet of Things module, the flange intelligent management subsystem calculates the wireless data and uploads the calculation result to the flange intelligent tightening subsystem. The flange intelligent tightening subsystem makes a judgment according to the calculation result and issues a second instruction to the flange intelligent management subsystem. The flange intelligent management subsystem converts the second instruction into a first instruction and issues it to the third-party Internet of Things module. The third-party Internet of Things module translates the first instruction into an identifiable status signal and issues it to the relay.

[0025] The present invention will be further described below with reference to the accompanying drawings. Description of the Drawings

[0026] Figure 1 It is a perspective view of the hydraulic wrench pump station in the present invention;

[0027] Figure 2 It is a front view of the hydraulic wrench pump station in the present invention;

[0028] Figure 3 It is a right view of the hydraulic wrench pump station in the present invention;

[0029] Figure 4 It is a rear view of the hydraulic wrench pump station in the present invention;

[0030] Figure 5 It is a left view of the hydraulic wrench pump station in the present invention;

[0031] Figure 6 It is a perspective view of the hydraulic wrench pump station in the present invention (hiding the fuel tank and side plates);

[0032] Figure 7 It is a front view of the hydraulic wrench pump station in the present invention (hiding the fuel tank and side plates);

[0033] Figure 8 It is a right view of the hydraulic wrench pump station in the present invention (hiding the fuel tank and side plates);

[0034] Figure 9 It is a rear view of the hydraulic wrench pump station in the present invention (hiding the fuel tank and side plates);

[0035] Figure 10 This is the left view of the hydraulic wrench pump station in the present invention (the fuel tank and side plates are hidden);

[0036] Figure 11 This is the schematic diagram of the hydraulic wrench pump station in the present invention (before the electromagnetic directional valve changes direction);

[0037] Figure 12 This is the schematic diagram of the hydraulic wrench pump station in the present invention (after the electromagnetic directional valve changes direction);

[0038] Figure 13 This is the schematic diagram of the control system structure of the hydraulic wrench pump station in the present invention. Specific embodiments

[0039] As Figure 11 shown, and in combination with Figure 12 shown, the hydraulic wrench pump station in the present invention includes a fuel tank 1, above which there is a motor 3. The motor 3 drives a hydraulic pump 2 located in the fuel tank 1. The hydraulic pump 2 is connected to an electromagnetic directional valve 6 through a first oil circuit 5. The electromagnetic directional valve 6 is used to connect one end of a second oil circuit 7 and a third oil circuit 9. The other ends of the second oil circuit 7 and the third oil circuit 9 are used to connect to a hydraulic cylinder 8 of a hydraulic wrench. The electromagnetic directional valve 6 is also connected to one end of a fourth oil circuit 10. The other end of the fourth oil circuit 10 is connected to the fuel tank 1. A cooling device 11 is connected to the fourth oil circuit 10.

[0040] The hydraulic wrench pump station in the present invention further includes a relay, a PLC control module, a bolt tightening torque sensor, and a wireless communication module. The relay is connected to the PLC control module. The PLC control module is connected to the motor 3. The relay is used to receive a status signal and output a first control signal to the PLC control module. The PLC control module is used to output a second control signal to the motor 3 in a controlled manner. The bolt tightening torque sensor is connected to the wireless communication module. The bolt tightening torque sensor is used to collect bolt tightening torque data and output the collected bolt tightening torque data to the wireless communication module. The wireless communication module is used to convert the bolt tightening torque data into wireless data and upload it to a database.

[0041] As Figure 11 、 12As shown in the figure, in the hydraulic wrench pump station of the present invention, a fifth oil passage 13 and a sixth oil passage 27 are respectively connected between the first oil passage 5 and the fourth oil passage 10. An overflow valve 14 is connected to the fifth oil passage 13, and a proportional overflow valve 16 is connected to the sixth oil passage 27. The connection points of the fifth oil passage 13 with the first oil passage 5 and the fourth oil passage 10 are respectively a first connection point 28 and a second connection point 29. The connection points of the sixth oil passage 27 with the first oil passage 5 and the fourth oil passage 10 are respectively a third connection point 30 and a fourth connection point 31. Along the direction of the hydraulic pump 2 to the electromagnetic directional valve 6 (i.e., the oil supply direction) on the first oil passage 5, the first connection point 28 and the third connection point 30 are successively arranged. The second connection point 29 and the fourth connection point 31 are located between the electromagnetic directional valve 6 and the cooling device 11. Along the direction of the electromagnetic directional valve 6 to the cooling device 11 (i.e., the oil return direction) on the fourth oil passage 10, the fourth connection point 31 and the second connection point 29 are successively arranged.

[0042] As Figure 11 、 12 As shown in the figure, in the hydraulic wrench pump station of the present invention, a seventh oil passage 15 is connected between the third oil passage 9 and the fourth oil passage 10. A safety valve 12 is connected to the seventh oil passage 15. The connection point of the seventh oil passage 15 with the fourth oil passage 10 is a fifth connection point 32, and the fifth connection point 32 is located between the fourth connection point 31 and the electromagnetic directional valve 6.

[0043] As Figure 11 、 12 As shown in the figure, a pressure sensor 4 is connected to the first oil passage 5, and the pressure sensor 4 is connected to the third connection point 30.

[0044] Next, in combination with Figure 11 、 12 it is explained how the hydraulic oil realizes commutation in the electromagnetic directional valve 6. As Figure 11 shown in the figure, before the electromagnetic directional valve 6 commutates, the hydraulic oil enters the electromagnetic directional valve 6 through the first oil passage 5, and then enters the cylinder body below the piston of the hydraulic cylinder 8 through the second oil passage 7. At the same time, the hydraulic oil in the cylinder body above the piston enters the electromagnetic directional valve 6 through the third oil passage 9, and then returns to the fuel tank 1 through the fourth oil passage 10. At this time, the piston rod of the hydraulic cylinder 8 extends. As Figure 12 shown in the figure, after the electromagnetic directional valve 6 completes commutation, the hydraulic oil enters the electromagnetic directional valve 6 through the first oil passage 5, and then enters the cylinder body above the piston of the hydraulic cylinder 8 through the third oil passage 9. At the same time, the hydraulic oil in the cylinder body below the piston enters the electromagnetic directional valve 6 through the second oil passage 7, and then returns to the fuel tank 1 through the fourth oil passage 10. At this time, the piston rod of the hydraulic cylinder 8 retracts. Through the telescopic movement of the piston rod, the hydraulic wrench can be driven to work.

[0045] AsFigure 1 as shown in and in combination with Figures 2 - 10 As shown in Figures 2 - 10 , the hydraulic wrench pump station in the present invention further includes a frame 25, on which the fuel tank 1 is provided. On the cover plate 22 of the fuel tank 1, the motor 3, the electromagnetic directional valve 6, the pressure sensor 4, the cooling device 11, the safety valve, the overflow valve and the proportional overflow valve 16 are provided.

[0046] In the hydraulic wrench pump station of the present invention, the electromagnetic directional valve 6 is connected to the valve block 21, the valve block 21 is connected to the transition block 20, a quick connector 19 is connected to the transition block 20, oil channels are provided in both the valve block 21 and the transition block 20, the electromagnetic directional valve 6 and the quick connector 19 are communicated through the oil channels, and the quick connector 19 is used to connect the second oil circuit 7 and the third oil circuit 9.

[0047] In the hydraulic wrench pump station of the present invention, a liquid crystal display screen 17 is provided above the frame 25. The liquid crystal display screen 17 is arranged on the frame 25 through the mounting plate 18. On both opposite sides of the middle part of the frame 25, a side plate 24 is provided respectively. At the bottom of the frame 25, rollers 26 are provided. On the cover plate 22 of the fuel tank 1, an electrical box 23 is also provided. The liquid crystal display screen 17 is connected to the PLC control module and is used to display and set the parameters and status of the PLC control module. The electrical box 23 is used to accommodate electrical components.

[0048] In the hydraulic wrench pump station of the present invention, the cooling device 11 is an air-cooling device. The safety valve and the overflow valve are arranged in the valve block 21.

[0049] such as Figure 13 As shown in Figure 13 , the control system of the above-mentioned hydraulic wrench pump station in the present invention includes a third-party Internet of Things module, a flange intelligent management subsystem and a flange intelligent fastening subsystem which are connected in sequence. The third-party Internet of Things module is respectively connected to the wireless communication module and the relay of the hydraulic wrench pump station. The third-party Internet of Things module is used to receive the wireless data uploaded by the wireless communication module and upload it to the flange intelligent management subsystem. The third-party Internet of Things module is also used to receive the first instruction issued by the flange intelligent management subsystem, translate it into an identifiable status signal and then issue it to the relay. The flange intelligent management subsystem is used to calculate the wireless data uploaded by the third-party Internet of Things module and upload the calculation result to the flange intelligent fastening subsystem. The flange intelligent management subsystem is also used to receive the second instruction issued by the flange intelligent fastening subsystem, convert it into the first instruction and issue it to the third-party Internet of Things module. The flange intelligent fastening subsystem is used to receive the calculation result uploaded by the flange intelligent management subsystem, make a judgment according to the calculation result and then issue the first instruction to the flange intelligent management subsystem.

[0050] The control method of the above-mentioned hydraulic wrench pump station in the present invention includes the following steps:

[0051] Use a bolt tightening torque sensor to collect bolt tightening torque data and output it to a wireless communication module.

[0052] Use the wireless communication module to convert the bolt tightening torque data into wireless data.

[0053] Upload the wireless data to the flange intelligent management subsystem through a third - party Internet of Things module.

[0054] Use the flange intelligent management subsystem to calculate the wireless data and upload the calculation result to the flange intelligent tightening subsystem.

[0055] Use the flange intelligent tightening subsystem to make a judgment based on the calculation result and issue a second instruction to the flange intelligent management subsystem.

[0056] Use the flange intelligent management subsystem to convert the second instruction into a first instruction and issue it to the third - party Internet of Things module.

[0057] Use the third - party Internet of Things module to translate the first instruction into a recognizable status signal and issue it to the relay.

[0058] Use the relay to convert the status signal into a first control signal and output it to the PLC control module.

[0059] Use the PLC control module to convert the first control signal into a second control signal and output it to Motor 3 to control the working state of Motor 3.

[0060] The bolt tightening torque sensor in the present invention is used to collect bolt tightening torque data and output the collected bolt tightening torque data to the wireless communication module. The wireless communication module is used to convert the bolt tightening torque data into wireless data and upload it to the database. The status signal generated after database processing is output to the relay. The relay outputs a first control signal to the PLC control module. The PLC control module is used to output a second control signal to Motor 3 under control to control the working state of Motor 3. Motor 3 drives the hydraulic pump 2 to perform operations such as start - up, loading, and stop, thereby realizing the automatic control of the pump station. In the present invention, the process of database data processing is as follows: upload the wireless data to the flange intelligent management subsystem through a third - party Internet of Things module. The flange intelligent management subsystem calculates the wireless data and uploads the calculation result to the flange intelligent tightening subsystem. The flange intelligent tightening subsystem (mobile phone APP) makes a judgment based on the calculation result and issues a second instruction to the flange intelligent management subsystem. The flange intelligent management subsystem converts the second instruction into a first instruction and issues it to the third - party Internet of Things module. The third - party Internet of Things module translates the first instruction into a recognizable status signal (0 / 1 signal) and issues it to the relay.

[0061] In the present invention, unless otherwise clearly specified and defined, terms such as "installed", "connected", "joined", "fixed", etc. shall be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or integrated; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and it may be the communication inside two elements or the interaction relationship between two elements, unless otherwise clearly defined. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0062] The above-described embodiments are only descriptions of the preferred embodiments of the present invention and do not limit the scope of the present invention. Without departing from the design spirit of the present invention, various deformations and improvements made by those of ordinary skill in the art to the technical solutions of the present invention shall fall within the protection scope determined by the claims of the present invention.

Claims

1. A hydraulic wrench pump station, characterized in that: It includes a fuel tank, above which there is a motor. The motor drives a hydraulic pump located in the fuel tank. The hydraulic pump is connected to an electromagnetic directional valve through a first oil circuit. The electromagnetic directional valve is used to connect one end of a second oil circuit and a third oil circuit. The other ends of the second oil circuit and the third oil circuit are used to connect to a hydraulic wrench. The electromagnetic directional valve is also connected to one end of a fourth oil circuit, and the other end of the fourth oil circuit is connected to the fuel tank. A cooling device is connected to the fourth oil circuit. It further includes a relay, a PLC control module, a bolt tightening torque sensor, and a wireless communication module. The relay is connected to the PLC control module, and the PLC control module is connected to the motor. The relay is used to receive a status signal and output a first control signal to the PLC control module. The PLC control module is used to output a second control signal to the motor in a controlled manner. The bolt tightening torque sensor is connected to the wireless communication module. The bolt tightening torque sensor is used to collect bolt tightening torque data and output the collected bolt tightening torque data to the wireless communication module. The wireless communication module is used to convert the bolt tightening torque data into wireless data and upload it to a database. The status signal generated after the database processes the data is output to the relay. The process of the database processing data is as follows: The wireless data is uploaded to the flange intelligent management subsystem through a third-party Internet of Things module. The flange intelligent management subsystem calculates the wireless data and uploads the calculation result to the flange intelligent tightening subsystem. The flange intelligent tightening subsystem makes a judgment based on the calculation result and issues a second instruction to the flange intelligent management subsystem. The flange intelligent management subsystem converts the second instruction into a first instruction and issues it to the third-party Internet of Things module. The third-party Internet of Things module translates the first instruction into an identifiable status signal and issues it to the relay.

2. The hydraulic wrench pump station according to claim 1, wherein: A fifth oil circuit and a sixth oil circuit are respectively connected between the first oil circuit and the fourth oil circuit. An overflow valve is connected to the fifth oil circuit, and a proportional overflow valve is connected to the sixth oil circuit. The connections of the fifth oil circuit with the first oil circuit and the fourth oil circuit are respectively a first connection point and a second connection point. The connections of the sixth oil circuit with the first oil circuit and the fourth oil circuit are respectively a third connection point and a fourth connection point. The first connection point and the third connection point are sequentially arranged on the first oil circuit along the direction from the hydraulic pump to the electromagnetic directional valve. The second connection point and the fourth connection point are located between the electromagnetic directional valve and the cooling device. The fourth connection point and the second connection point are sequentially arranged on the fourth oil circuit along the direction from the electromagnetic directional valve to the cooling device.

3. The hydraulic wrench pump station according to claim 2, characterized in that: A seventh oil circuit is connected between the third oil circuit and the fourth oil circuit. A safety valve is connected to the seventh oil circuit. The connection of the seventh oil circuit with the fourth oil circuit is a fifth connection point, and the fifth connection point is located between the fourth connection point and the electromagnetic directional valve.

4. The hydraulic wrench pump station according to claim 3, wherein: A pressure sensor is connected to the first oil circuit, and the pressure sensor is connected to the third connection point.

5. The hydraulic wrench pump station according to claim 4, wherein: It further includes a frame, on which the fuel tank is provided. The motor, electromagnetic directional valve, pressure sensor, cooling device, safety valve, overflow valve, and proportional overflow valve are provided on the cover of the fuel tank.

6. The hydraulic wrench pump station according to claim 5, wherein: The electromagnetic directional valve is connected to the valve block, the valve block is connected to the transition block, a quick connector is connected to the transition block, oil channels are provided in both the valve block and the transition block, the electromagnetic directional valve and the quick connector are communicated through the oil channels, and the quick connector is used to connect the second oil circuit and the third oil circuit.

7. The hydraulic wrench pump station according to claim 6, characterized in that: A liquid crystal display screen is provided above the frame, side plates are provided on both opposite sides of the middle part of the frame, rollers are provided at the bottom of the frame, and an electrical box is further provided on the cover plate of the fuel tank.

8. The hydraulic wrench pump station according to claim 7, characterized in that: The cooling device is an air-cooling device.

9. The control system of the hydraulic wrench pump station according to any one of claims 1-8, characterized in that: It includes a third-party Internet of Things module, a flange intelligent management subsystem, and a flange intelligent fastening subsystem connected in sequence. The third-party Internet of Things module is respectively connected to the wireless communication module and the relay of the hydraulic wrench pump station. The third-party Internet of Things module is used to receive the wireless data uploaded by the wireless communication module and upload it to the flange intelligent management subsystem. The third-party Internet of Things module is also used to receive the first instruction issued by the flange intelligent management subsystem, translate it into an identifiable status signal, and then issue it to the relay. The flange intelligent management subsystem is used to calculate the wireless data uploaded by the third-party Internet of Things module and upload the calculation result to the flange intelligent fastening subsystem. The flange intelligent management subsystem is also used to receive the second instruction issued by the flange intelligent fastening subsystem, convert it into the first instruction, and issue it to the third-party Internet of Things module. The flange intelligent fastening subsystem is used to receive the calculation result uploaded by the flange intelligent management subsystem, make a judgment according to the calculation result, and then issue the first instruction to the flange intelligent management subsystem.

10. A control method for the hydraulic wrench pump station according to any one of claims 1-8, characterized in that, It includes the following steps: Use a bolt tightening torque sensor to collect bolt tightening torque data and output it to the wireless communication module. Use the wireless communication module to convert the bolt tightening torque data into wireless data. Upload the wireless data to the flange intelligent management subsystem through the third-party Internet of Things module. Use the flange intelligent management subsystem to calculate the wireless data and upload the calculation result to the flange intelligent fastening subsystem. Use the flange intelligent fastening subsystem to make a judgment according to the calculation result and then issue the second instruction to the flange intelligent management subsystem. Use the flange intelligent management subsystem to convert the second instruction into the first instruction and issue it to the third-party Internet of Things module. Use the third-party Internet of Things module to translate the first instruction into an identifiable status signal and issue it to the relay. Use the relay to convert the status signal into the first control signal and output it to the PLC control module. Use the PLC control module to convert the first control signal into the second control signal and output it to the motor to control the working state of the motor.

Citation Information

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