Winch oil way system and control method thereof

Abstract

The invention discloses a winch oil way system and a control method thereof, and relates to the technical field of drilling equipment, in particular to the winch oil way system and the control method thereof. The oil outlet pipeline is used for supplying oil to the gear box; wherein a pumping pipe group is connected between the oil inlet pipeline and the oil outlet pipeline, the pumping pipe group comprises a plurality of pumping pipes which are connected in parallel, and each pumping pipe is provided with a lubricating oil pump. The lubricating system has the advantages that the reliability of the lubricating system is improved, and a plurality of oil pump motor sets which are standby for each other are used for supplying oil to a plurality of gear boxes simultaneously. Even if one oil pump motor set breaks down, other standby oil pump motor sets can still continue to provide lubricating oil for the gearbox, and therefore the reliability of the whole lubricating system is improved. Downtime caused by a single point of fault is obviously reduced, and continuous operation of the winch is ensured.

Description

Technical Field

[0001] The invention relates to the technical field of drilling equipment, and in particular to a drawworks oil circuit system and a control method thereof. Background Art

[0002] In the related art, the main lubrication method of AC variable frequency winch equipped with dual gearboxes is as follows: each of the two gearboxes is equipped with a lubrication system, and each single-channel lubrication system is equipped with an oil pump motor unit to supply lubricating oil to the gearbox. Since each single-channel lubrication system is equipped with only one oil pump motor unit for supplying lubricating oil, if the oil pump motor unit is damaged, the lubrication system will lose power and the winch will not be able to operate normally. The winch can only be put into operation after waiting for the replacement of the new oil pump motor unit, which will cause a large waste of time for the drilling rig operation. Summary of the invention

[0003] The present invention aims to overcome the shortcomings of the above-mentioned related technologies and provides a winch oil circuit system and a control method thereof.

[0004] The technical solution adopted by the present invention is as follows:

[0005] A winch lubrication system, characterized by comprising:

[0006] Oil inlet pipeline, which is used to receive the oil returned from the gearbox;

[0007] An oil outlet pipeline, which is used to supply oil to the gearbox;

[0008] Among them, a pumping pipe group is connected between the oil inlet pipeline and the oil outlet pipeline. The pumping pipe group includes a plurality of pumping pipes connected in parallel with each other, and each pumping pipe is provided with a lubricating oil pump.

[0009] Further, the pumping pipe group is provided with a plurality of groups;

[0010] The oil inlet pipeline includes a plurality of oil inlet pipes, each of which corresponds to each pumping pipe group one by one, and the oil inlet end of each oil inlet pipe is respectively used to connect to the oil return port of the corresponding gear box, and the oil inlet ends of the plurality of pumping pipes of the pumping pipe group can be directly or indirectly connected in parallel to the oil outlet end of the corresponding oil inlet pipe;

[0011] The oil outlet pipeline includes multiple oil outlet pipes, each oil outlet pipe corresponds to each group of pumping pipe groups one by one, the oil outlet end of each oil outlet pipe is used to connect to the oil inlet of the corresponding gear box, and the oil outlet ends of the multiple pumping pipes of the pumping pipe group can be connected in parallel to the oil inlet end of the corresponding oil outlet pipe.

[0012] Furthermore, the oil inlet pipeline includes a plurality of oil inlet pipes and an oil inlet manifold, the oil inlet end of each oil inlet pipe is respectively used to connect to the oil return port of the corresponding gearbox, the oil outlet end of each oil inlet pipe is connected to the oil inlet end of the oil inlet manifold, and the oil inlet ends of the plurality of pumping pipes of the pumping pipe group can be directly or indirectly connected in parallel to the oil outlet end of the oil inlet pipe manifold;

[0013] The oil outlet pipeline includes multiple oil outlet pipes and an oil outlet manifold. The oil outlet end of each oil outlet pipe is used to connect to the oil inlet of the corresponding gearbox, and the oil inlet end of each oil outlet pipe is connected to the oil outlet end of the oil outlet manifold. The oil outlet ends of the multiple pumping pipes of the pumping pipe group can be connected in parallel to the oil inlet end of the oil outlet pipe manifold.

[0014] Furthermore, it also includes a radiator and a disc brake hydraulic oil circuit. The disc brake hydraulic oil circuit is provided with a hydraulic oil pump, and the oil outlet manifold and the disc brake hydraulic oil circuit are both arranged through the radiator.

[0015] Furthermore, the disc brake hydraulic oil circuit and the oil inlet pipeline are provided with temperature sensors.

[0016] Furthermore, it includes a control system, a pumping pipe group is provided with a filter, a pressure sensor, a pressure gauge and a flow sensor, the oil outlet pipeline is provided with a throttle valve, and the temperature sensor, lubricating oil pump, pressure sensor, flow sensor and throttle valve are all electrically connected to the control system.

[0017] Furthermore, an overflow pipeline is provided between the oil inlet pipeline and the oil outlet pipeline, and the overflow pipeline is provided with an overflow valve.

[0018] Furthermore, the pumping pipe assembly is provided with a one-way valve.

[0019] Furthermore, the oil inlet pipeline is connected with a pumping pipe through the lubricating oil tank.

[0020] Furthermore, a control method for a winch oil circuit system comprises the following steps:

[0021] S1: The oil inlet line temperature sensor and the disc brake hydraulic oil line temperature sensor in the winch oil system are used to monitor the gearbox lubricating oil temperature and the disc brake hydraulic station oil tank oil temperature respectively;

[0022] S2: When any oil inlet line temperature sensor detects that the gearbox lubricating oil temperature is higher than 65°C, the system controls the start of the radiator to reduce the lubricating oil temperature;

[0023] S3: When the disc brake hydraulic oil circuit temperature sensor detects that the oil temperature of the disc brake hydraulic station tank is higher than 60°C, the system controls the start of the hydraulic oil pump and radiator to reduce the hydraulic oil temperature;

[0024] S4: When the disc brake hydraulic oil circuit temperature sensor detects that the oil temperature of the disc brake hydraulic station tank is lower than 50°C, the system controls to stop the hydraulic oil pump to prevent overcooling;

[0025] S5: When all oil inlet line temperature sensors detect that the gearbox lubricating oil temperature is lower than 55°C, and the disc brake hydraulic oil circuit temperature sensor detects that the disc brake hydraulic station tank oil temperature is lower than 50°C, the system controls to stop the hydraulic oil pump and radiator to save energy and reduce unnecessary operation.

[0026] In summary, due to the adoption of the above technical solution, the beneficial effects of the present invention are:

[0027] 1. Improve the reliability of the lubrication system: Use multiple oil pump motors that serve as backup for each other to supply oil to multiple gearboxes at the same time. Even if one of the oil pump motors fails, the other backup oil pump motors can continue to provide lubricating oil to the gearbox, thereby improving the reliability of the entire lubrication system. This design significantly reduces downtime caused by single-point failures and ensures continuous operation of the winch.

[0028] 2. Improve lubrication effect: Add flow control and monitoring components to the gearbox oil inlet pipeline. Through real-time monitoring and adjustment, ensure that each gearbox can get proper lubricating oil supply to avoid poor lubrication caused by insufficient oil supply. In addition, flow control and monitoring can also help identify potential failure points and perform preventive maintenance in advance.

[0029] 3. Optimize the heat dissipation system: Divide the internal pipeline of the radiator into two routes, one for the gearbox lubricating oil and the other for the disc brake hydraulic oil. Since the radiator of the disc brake hydraulic station is integrated into the winch radiator, the size of the disc brake hydraulic station can be further reduced. This design not only improves the heat dissipation efficiency, but also saves space, making the layout of the entire system more compact and reasonable. The design of the integrated radiator also helps to reduce installation costs and maintenance difficulties.

[0030] 4. Real-time monitoring and control: By setting up monitoring equipment such as temperature sensors and pressure sensors, real-time monitoring of the lubrication system and hydraulic system can be achieved. When abnormal temperature or pressure is detected, the system will automatically start or stop the corresponding equipment, such as the radiator or hydraulic oil pump, to ensure the stable operation of the system. In addition, the flow rate of the lubricating oil can be adjusted as needed to meet different working conditions. This intelligent control method not only improves the automation level of the system, but also enhances the adaptability and flexibility of the system.

[0031] 5. Energy saving and consumption reduction: This intelligent control method helps to reduce energy consumption and extend the service life of equipment. By accurately controlling the start and stop of the equipment, unnecessary energy waste can be avoided, and the wear and tear of the equipment can also be reduced.

[0032] 6. Improve safety: Through real-time monitoring and automatic adjustment, the risk of human operational errors can be reduced.

[0033] 7. Simplified maintenance process: Due to the use of multiple oil pump motor units that serve as backup for each other, maintenance personnel can perform repairs or replacements without affecting production. In addition, the design of the integrated radiator also makes maintenance work more convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] Figure 1 This is a lubrication principle diagram of a double gearbox winch according to an embodiment of the present invention;

[0035] Figure 2 This is a lubrication principle diagram of a double gearbox winch according to a second embodiment of the present invention;

[0036] Figure 3 This is a logic diagram for start-stop control of the radiator and the oil pump of the present invention.

[0037] Markings in the figure:

[0038] 1-Oil inlet pipeline, 2-Oil outlet pipeline, 3-Overflow valve, 4-Lubricating oil tank, 5-Pumping pipe, 6-Lubricating oil pump, 7-Temperature sensor, 8-Filter, 9-Pressure sensor, 10-Flow sensor, 11-Radiator, 12-Disc brake hydraulic oil circuit, 13-Hydraulic oil pump, 14-Overflow pipeline, 15-Throttle valve, 16-Check valve, 17-Pressure gauge.

[0039] Specific Examples

[0040] The present invention will be described in detail below in conjunction with the accompanying drawings.

[0041] In order to make the purpose, technical solution and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0042] like Figure 1 , 2 As shown, a winch lubrication system is characterized by comprising:

[0043] Oil inlet pipeline 1, oil inlet pipeline 1 is used to receive the oil returned from the gear box;

[0044] Oil outlet pipeline 2, oil outlet pipeline 2 is used to supply oil to the gear box;

[0045] A pumping pipe group is connected between the oil inlet pipeline 1 and the oil outlet pipeline 2 . The pumping pipe group includes a plurality of pumping pipes 5 connected in parallel with each other. Each pumping pipe 5 is provided with a lubricating oil pump 6 .

[0046] Embodiment 1:

[0047] like Figure 1 As shown, there are multiple groups of pumping pipe groups;

[0048] The oil inlet pipeline 1 includes a plurality of oil inlet pipes, each of which corresponds to each pumping pipe group one by one, and the oil inlet end of each oil inlet pipe is respectively used to connect to the oil return port of the corresponding gear box, and the oil inlet ends of the plurality of pumping pipes 5 of the pumping pipe group can be directly or indirectly connected in parallel to the oil outlet end of the corresponding oil inlet pipe;

[0049] The oil outlet pipeline 2 includes multiple oil outlet pipes, each oil outlet pipe corresponds one-to-one to each group of pumping pipe groups, and the oil outlet end of each oil outlet pipe is used to connect to the oil inlet of the corresponding gear box. The oil outlet ends of the multiple pumping pipes 5 of the pumping pipe group can be connected in parallel to the oil inlet end of the corresponding oil outlet pipe.

[0050] Specifically, in this embodiment, two gear boxes are provided, each gear box corresponds to a separate pumping pipe group, the pumping pipe group includes two pumping pipes 5, both pumping pipes 5 are provided with lubricating oil pumps 6, and a one-way valve 16 is installed at the discharge end of the lubricating oil pump 6, so that one oil pump motor group is used and the other is used as a backup. When one of the oil pump motor groups is detected to be damaged, the other oil pump motor group can be immediately started to continue to provide power for the lubrication system. The entire lubrication system provides 4 oil pump motor groups, which greatly improves the redundancy of the oil pump.

[0051] Embodiment 2

[0052] Furthermore, the oil inlet pipeline 1 includes a plurality of oil inlet pipes and an oil inlet manifold, the oil inlet end of each oil inlet pipe is respectively used to connect to the oil return port of the corresponding gearbox, the oil outlet end of each oil inlet pipe is connected to the oil inlet end of the oil inlet manifold, and the oil inlet ends of the plurality of pumping pipes 5 of the pumping pipe group can be directly or indirectly connected in parallel to the oil outlet end of the oil inlet pipe manifold;

[0053] The oil outlet pipeline 2 includes multiple oil outlet pipes and an oil outlet collecting pipe. The oil outlet end of each oil outlet pipe is used to connect to the oil inlet of the corresponding gearbox. The oil inlet end of each oil outlet pipe is connected to the oil outlet end of the oil outlet collecting pipe. The oil outlet ends of the multiple pumping pipes 5 of the pumping pipe group can be connected in parallel to the oil inlet end of the oil outlet pipe collecting pipe.

[0054] Specifically, in this embodiment, if Figure 2As shown, it also includes two gear boxes, and the oil circuits of the two gear boxes are collected to the lubricating oil tank 4 through the oil inlet pipeline 1. A pumping pipe group is set inwardly of the lubricating oil, and two pumping pipes 5 are set in the pumping pipe group. Lubricating oil pumps 6 are set on the two pumping pipes 5, and a one-way valve 16 is installed at the discharge end of the lubricating oil pump 6, so that one oil pump motor group is used and the other is used as a standby. When one of the oil pump motor groups is detected to be damaged, the other oil pump motor group can be started immediately to continue to provide power for the lubrication system. The oil outlet pipeline 2 is further branched into two oil outlet pipes, which supply oil to the two gear boxes respectively, so that the lubricating oil can circulate through the gear mechanism. Among them, at least one lubricating oil pump 6 on the pumping pipe 5 is used as a standby oil pump and does not participate in the daily oil supply work. In this embodiment, two pumping pipes 5 (corresponding to two lubricating oil pumps 6) are used. When the working oil pump fails, the control system will automatically switch to the standby oil pump to ensure the continuous operation of the lubrication system. This design significantly improves the reliability of the lubrication system, reduces the downtime caused by single point failures, and ensures the continuous operation of the winch.

[0055] Furthermore, a control method for a winch oil circuit system includes the following steps:

[0056] S1: connect the winch gearbox oil circuit and the pumping pipe group to form a closed loop, so that the lubricating oil circulates through the gear mechanism;

[0057] S2: including a control system, into which parameters such as the working standard pressure and flow rate of the pumping pipe group are input;

[0058] In this embodiment, the winch oil circuit system adds flow control and monitoring components to the gearbox oil inlet pipeline 1. These components can monitor the oil inlet in real time and adjust it through the control system to ensure that the oil inlet of the two gearboxes remains balanced. For example, when the oil inlet of one gearbox is too large, the control system will appropriately reduce the oil inlet of the gearbox; and vice versa. This can effectively avoid the problem of poor lubrication caused by unbalanced oil inlet and improve the overall lubrication effect. In addition, flow control and monitoring can also help identify potential failure points and perform preventive maintenance in advance.

[0059] S3: When the pumping pipe group is pumping oil, at least one non-working standby oil pump is left in the lubricating oil pumps 6 on the multiple pumping pipes 5;

[0060] S4: The data of the pressure sensor 9 and the flow sensor 10 provided in the pumping pipe group are transmitted back to the control system, and the oil pumps involved in the work are calculated;

[0061] S5: When the pressure or flow rate is less than the set value, add the lubricating oil pump 6 to participate in the work, or shut down the working lubricating oil pump 6 and start the lubricating oil pump 6 on the standby pumping pipe 5, and inspect the lubricating oil pump 6;

[0062] S6: When the pressure or flow rate is greater than the set value, reduce the number of lubricating oil pumps 6 involved in the work, or open the overflow pipeline 14.

[0063] Furthermore, it also includes a radiator 11 and a disc brake hydraulic oil circuit 12 . The disc brake hydraulic oil circuit 12 is provided with a hydraulic oil pump 13 . The oil outlet manifold and the disc brake hydraulic oil circuit 12 are both provided through the radiator 11 .

[0064] In this embodiment, the radiator 11 of the winch oil circuit system is designed in the form of an internal pipeline divided into two paths. One path is used for the heat dissipation of the gearbox lubricating oil, and the other path is used for the heat dissipation of the disc brake hydraulic oil. This design allows the radiator 11 of the disc brake hydraulic station to be integrated into the winch radiator 11, thereby reducing the overall size of the disc brake hydraulic station. In addition, a temperature sensor 7 is also provided on the radiator 11 to monitor the temperature of the lubricating oil. When it is detected that the lubricating oil temperature is higher than 65°C, the system will automatically start the radiator 11 for cooling. This design not only improves the heat dissipation efficiency, but also saves space, making the layout of the entire system more compact and reasonable. The design of the integrated radiator 11 also helps to reduce installation costs and maintenance difficulties.

[0065] Furthermore, the disc brake hydraulic oil circuit 12 and the oil inlet pipeline 1 are provided with temperature sensors 7 .

[0066] Furthermore, it includes a control system, the pumping pipe group is provided with a filter 8, a pressure sensor 9, a pressure gauge 17 and a flow sensor 10, the oil outlet pipeline 2 is provided with a throttle valve 15, and the temperature sensor 7, the lubricating oil pump 6, the pressure sensor 9, the flow sensor 10 and the throttle valve 15 are all electrically connected to the control system.

[0067] In this embodiment, a filter 8, a pressure sensor 9 and a flow sensor 10 are respectively provided in the pumping pipe group in the winch oil circuit system and the disc brake hydraulic oil circuit 12. These components can ensure the quality of the lubricating oil and hydraulic oil, and monitor the pressure and flow of the system at the same time. When the pressure or flow is less than the set value, the system will increase the number of oil pumps involved in the work or increase the operating frequency of the oil pump; when the pressure or flow is greater than the set value, the system will reduce the number of oil pumps involved in the work or reduce the power of the oil pump. In addition, when the oil pump motor unit is detected to be damaged, the control system will automatically switch to the standby lubricating oil pump 6 and shut down the working lubricating oil pump 6 for maintenance personnel to overhaul. This design improves the automation level of the system and enhances the adaptability and flexibility of the system; at the same time, the pressure gauge 17 allows the operator to intuitively observe the internal pressure of the oil circuit, so as to grasp the operation of the machine at the first time.

[0068] Furthermore, an overflow pipeline 14 is provided between the oil inlet pipeline 1 and the oil outlet pipeline 2 , and the overflow pipeline 14 is provided with an overflow valve 3 .

[0069] In a specific embodiment, an overflow pipeline 14 is provided between the winch oil inlet pipeline 1 and the oil outlet pipeline 2, and an overflow valve 3 is provided. When the system pressure exceeds the set value, the overflow valve 3 will automatically open to return the excess lubricating oil to the oil inlet main pipe or the lubricating oil tank 4. This design can avoid equipment damage caused by excessive pressure, and also ensure the stable operation of the lubrication system.

[0070] Furthermore, the pumping pipe assembly is provided with a one-way valve 16 .

[0071] Furthermore, the oil inlet pipeline 1 is connected to a pumping pipe 5 through a lubricating oil tank 4 .

[0072] The lubricating oil is collected by the lubricating oil tank 4, and the lubricating oil reserve is used to indirectly supply oil to the pumping pipe group to prevent the oil inlet pipeline 1 from failing but the machine continues to run and no lubricating oil is pumped into the gear box by the lubricating oil tank 4. A certain amount of lubricating oil can be reserved by the lubricating oil tank 4, which can effectively prevent the above situation from happening.

[0073] Furthermore, a control method for a winch oil circuit system comprises the following steps:

[0074] S1: The oil inlet line 1 temperature sensor 7 and the disc brake hydraulic oil line 12 temperature sensor 7 in the winch oil system are used to monitor the gear box lubricating oil temperature and the disc brake hydraulic station oil tank oil temperature respectively;

[0075] S2: When the temperature sensor 7 of any oil inlet pipeline 1 detects that the gearbox lubricating oil temperature is higher than 65°C, the system controls the start-up of the radiator 11 to reduce the lubricating oil temperature;

[0076] S3: When the temperature sensor 7 of the disc brake hydraulic oil circuit 12 detects that the oil temperature of the disc brake hydraulic station tank is higher than 60°C, the system controls the start of the hydraulic oil pump 13 and the radiator 11 to reduce the hydraulic oil temperature;

[0077] S4: When the temperature sensor 7 of the disc brake hydraulic oil circuit 12 detects that the oil temperature of the disc brake hydraulic station tank is lower than 50°C, the system controls to stop the hydraulic oil pump 13 to prevent overcooling;

[0078] S5: When all the oil inlet line 1 temperature sensors 7 detect that the gearbox lubricating oil temperature is lower than 55°C, and the disc brake hydraulic oil circuit 12 temperature sensor 7 detects that the disc brake hydraulic station tank oil temperature is lower than 50°C, the system controls to stop the hydraulic oil pump 13 and the radiator 11 to save energy and reduce unnecessary operation.

[0079] In this embodiment, temperature sensors 7 are respectively provided in the oil inlet pipeline 1 and the disc brake hydraulic oil circuit 12 in the winch oil circuit system. These temperature sensors 7 are used to monitor the gearbox lubricating oil and the oil tank oil temperature of the disc brake hydraulic station. When any temperature sensor 7 detects that the gearbox lubricating oil temperature is higher than 65°C, the system will control the start of the radiator 11 to reduce the lubricating oil temperature; when the disc brake hydraulic oil circuit 12 temperature sensor 7 detects that the oil tank oil temperature of the disc brake hydraulic station is higher than 60°C, the system will control the start of the hydraulic oil pump 13 and the radiator 11 to reduce the hydraulic oil temperature. In this way, the lubricating oil and hydraulic oil can be effectively prevented from overheating, and the service life of the equipment can be extended.

[0080] The specific installation steps are as follows:

[0081] 1. Install multiple sensors: Install multiple high-precision temperature sensors 7 evenly distributed on the oil inlet pipeline 1 of the winch, as well as pressure sensors 9, flow sensors 10 and throttle valves 15 on each pipeline, to ensure that the position of each sensor can accurately measure the internal state of the oil circuit.

[0082] 2. Connect the sensor to the control system: Connect the signal line of each sensor to the input of the winch control system. Make sure all connections are firm and reliable to avoid signal interference and data loss.

[0083] 3. Calibrate the sensor: Calibrate each sensor before use to ensure that its measurement accuracy meets the requirements. Record the calibration parameters of each sensor for subsequent reference and maintenance.

[0084] 4. Set temperature threshold: Set a reasonable temperature threshold (e.g. 65°C) in the winch control system. When the temperature detected by any sensor exceeds this threshold, the system should automatically trigger the corresponding control action.

[0085] 5. Write control logic: Write a control program so that the system can make a comprehensive judgment based on the data of multiple temperature sensors 7. For example, the average method or majority voting method can be used to determine the final temperature value. If the data of a certain sensor is abnormal, the data can be filtered out through the algorithm to prevent false triggering.

[0086] 6. Testing and debugging: After completing the above steps, conduct comprehensive testing and debugging. Simulate temperature changes under various working conditions to verify the stability and reliability of the system. Ensure that the system can accurately respond and perform corresponding control actions under different temperature conditions.

[0087] 7. Monitoring and maintenance: During the actual operation, regularly check the working status and measurement data of the temperature sensor 7. If any abnormality is found, the faulty sensor should be promptly processed and replaced. At the same time, regularly maintain and upgrade the control system to ensure its long-term stable operation.

[0088] Embodiment 3

[0089] A plurality of temperature sensors 7 are arranged on the oil inlet pipeline 1

[0090] In a specific embodiment, a plurality of temperature sensors 7 are provided on the oil inlet pipeline 1 of the winch oil system. These temperature sensors 7 are used to monitor the temperature of the gearbox lubricating oil to prevent false triggering or to take an average value of multiple temperature measuring points. When any temperature sensor 7 detects that the gearbox lubricating oil temperature is higher than 65°C, the system will control the start-up of the radiator 11 to lower the lubricating oil temperature. By providing a plurality of temperature sensors 7, false triggering caused by a single sensor failure can be effectively avoided, thereby improving the reliability and accuracy of the system. In addition, the average value of multiple temperature measuring points can also more accurately reflect the actual temperature of the lubricating oil, which helps to more accurately control the working state of the cooling system.

[0091] The above description is only a preferred embodiment of the invention and is not intended to limit the invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the invention should be included in the protection scope of the invention.

Claims

1. A winch lubrication system, characterized in that: include: An oil inlet pipeline (1), the oil inlet pipeline (1) being used to receive oil return from the gear box; An oil outlet pipeline (2), the oil outlet pipeline (2) being used to supply oil to the gear box; A pumping pipe group is connected between the oil inlet pipeline (1) and the oil outlet pipeline (2), and the pumping pipe group includes a plurality of pumping pipes (5) connected in parallel with each other, and each of the pumping pipes (5) is provided with a lubricating oil pump (6).

2. A winch oil system according to claim 1, characterized in that: The pumping pipe group is provided with multiple groups; The oil inlet pipeline (1) comprises a plurality of oil inlet pipes, each of which corresponds to each group of the pumping pipe groups one by one, the oil inlet end of each of the oil inlet pipes being respectively used to connect to the oil return port of the corresponding gear box, and the oil inlet ends of the plurality of pumping pipes (5) of the pumping pipe group can be directly or indirectly connected in parallel to the oil outlet end of the corresponding oil inlet pipe; The oil outlet pipeline (2) comprises a plurality of oil outlet pipes, each of which corresponds to each group of the pumping pipe groups one by one, and the oil outlet end of each of the oil outlet pipes is respectively used to connect to the oil inlet of the corresponding gear box, and the oil outlet ends of the plurality of pumping pipes (5) of the pumping pipe group can be connected in parallel to the oil inlet end of the corresponding oil outlet pipe.

3. According to the winch oil system of claim 1, it is characterized in that: The oil inlet pipeline (1) comprises a plurality of oil inlet pipes and an oil inlet manifold, the oil inlet end of each of the oil inlet pipes being respectively used to connect to the oil return port of the corresponding gearbox, the oil outlet end of each of the oil inlet pipes being collectively connected to the oil inlet end of the oil inlet manifold, and the oil inlet ends of the plurality of pumping pipes (5) of the pumping pipe group being directly or indirectly connected in parallel to the oil outlet end of the oil inlet manifold; The oil outlet pipeline (2) comprises a plurality of oil outlet pipes and an oil outlet collecting pipe, the oil outlet end of each of the oil outlet pipes being respectively used to connect to the oil inlet of the corresponding gear box, the oil inlet end of each of the oil outlet pipes being collected and connected to the oil outlet end of the oil outlet collecting pipe, and the oil outlet ends of the plurality of pumping pipes (5) of the pumping pipe group can be connected in parallel to the oil inlet end of the oil outlet pipe collecting pipe.

4. A winch oil system according to claim 3, characterized in that: It also includes a radiator (11) and a disc brake hydraulic oil circuit (12), wherein the disc brake hydraulic oil circuit (12) is provided with a hydraulic oil pump (13), and the oil outlet manifold and the disc brake hydraulic oil circuit (12) are both provided through the radiator (11).

5. A winch oil system according to claim 4, characterized in that: The disc brake hydraulic oil circuit (12) and the oil inlet pipeline (1) are provided with temperature sensors (7).

6. A winch oil system according to claim 5, characterized in that: The invention comprises a control system, wherein the pumping pipe group is provided with a filter (8), a pressure sensor (9), a pressure gauge (17) and a flow sensor (10), the oil outlet pipeline (2) is provided with a throttle valve (15), and the temperature sensor (7), the lubricating oil pump (6), the pressure sensor (9), the flow sensor (10) and the throttle valve (15) are all electrically connected to the control system.

7. A winch oil system according to claim 1, characterized in that: An overflow pipeline (14) is provided between the oil inlet pipeline (1) and the oil outlet pipeline (2), and the overflow pipeline (14) is provided with an overflow valve (3).

8. A winch oil system according to claim 1, characterized in that: The pumping pipe assembly is provided with a one-way valve (16).

9. A winch oil system according to claim 1, characterized in that: It comprises a lubricating oil tank (4), and the oil inlet pipeline (1) is connected to a pumping pipe (5) via the lubricating oil tank (4).

10. A control method for a winch oil circuit system, applied to a winch oil circuit system according to any one of claims 1 to 9, characterized in that: The following steps are involved: S1: The oil inlet pipeline (1) temperature sensor (7) and the disc brake hydraulic oil circuit (12) temperature sensor (7) in the winch oil circuit system are used to monitor the gear box lubricating oil temperature and the disc brake hydraulic station oil tank oil temperature respectively; S2: When the temperature sensor (7) of any oil inlet pipeline (1) detects that the gearbox lubricating oil temperature is higher than 65°C, the system controls the radiator (11) to start to reduce the lubricating oil temperature; S3: When the temperature sensor (7) of the disc brake hydraulic oil circuit (12) detects that the oil temperature of the disc brake hydraulic station tank is higher than 60° C., the system controls the start of the hydraulic oil pump (13) and the radiator (11) to reduce the temperature of the hydraulic oil; S4: When the temperature sensor (7) of the disc brake hydraulic oil circuit (12) detects that the oil temperature of the disc brake hydraulic station tank is lower than 50°C, the system controls to stop the hydraulic oil pump (13) to prevent overcooling; S5: When the temperature sensors (7) of the multiple oil inlet pipelines (1) all detect that the gearbox lubricating oil temperature is lower than 55°C, and the temperature sensor (7) of the disc brake hydraulic oil circuit (12) detects that the oil temperature of the disc brake hydraulic station tank is lower than 50°C, the system controls to stop the hydraulic oil pump (13) and the radiator (11) to save energy and reduce unnecessary operation.

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