Bypass hydraulic control module reconfiguration structure

Abstract

This utility model relates to a reconfigurable structure for a bypass hydraulic control module, comprising: a hydraulic control module, a cooling device, an oil tank, an unpressurized return oil pipe, and a pressurized return oil pipe; the hydraulic control module includes a proportional valve and a safety valve, the inlets of which are connected to the oil tank via a filter assembly, and the outlet of the proportional valve is connected to the inlet of the cooling device; the unpressurized return oil pipe connects the outlet of the safety valve to the oil tank; the pressurized return oil pipe connects the outlet of the cooling device to the oil tank. The beneficial effects of this utility model are: the oil exiting the proportional valve has hydraulic pressure, improving the cooling effect; simultaneously, an overpressure valve is connected between the inlet and outlet of the cooling device, allowing the oil to return to the oil tank from the overpressure valve when the oil pressure is too high, protecting the safe operation of the cooling device; the reserved ports of the hydraulic control module are readily available, allowing the cooling device to connect to these reserved ports, minimizing modification costs while achieving the cooling purpose.

Description

Technical Field

[0001] This utility model relates to the field of hydraulics, and in particular to a bypass hydraulic control module reconfiguration structure. Background Technology

[0002] The oil supply station for the hydraulic actuators in the unit's bypass system provides drive and regulating oil to all valves in the high and low pressure bypasses. Although an oil tank heating module has been designed, according to design specifications, under extreme conditions such as frequent high-flow operation of the hydraulic system, or in abnormal ambient temperature conditions, overheating of the hydraulic control module will lead to heavy-load operation of the system. Furthermore, exceeding the designed oil temperature will cause oil quality deterioration. Therefore, it is necessary to design and optimize a hydraulic control module that can prevent heavy-load operation of the system and also prevent oil quality deterioration. Utility Model Content

[0003] The purpose of this invention is to overcome the shortcomings of the existing technology and provide a reconfigurable structure for a bypass hydraulic control module.

[0004] This bypass hydraulic control module reconfiguration structure includes: a hydraulic control module, a cooling device, an oil tank, an unpressurized return oil pipe, and a pressurized return oil pipe; the cooling device includes a cooling device inlet and a cooling device outlet; the hydraulic control module includes a proportional valve and a safety valve, the inlets of the proportional valve and the safety valve are connected to the oil tank through a filter assembly, and the outlet of the proportional valve is connected to the cooling device inlet; the unpressurized return oil pipe connects the outlet of the safety valve to the oil tank; and the pressurized return oil pipe connects the outlet of the cooling device to the oil tank.

[0005] Preferably, the cooling device consists of a cooler and a fan. The inlet of the cooler is connected to the liquid outlet of the proportional valve via a third hose, and the outlet of the cooler is connected to the pressurized return oil pipe via a second hose.

[0006] As a preferred embodiment, the hydraulic control module is also equipped with an overpressure valve, which is connected to the inlet and outlet of the cooling device.

[0007] Preferably, the pressure setting value of the safety valve is greater than that of the proportional valve.

[0008] Preferably, a pressure valve is connected to the pressurized return oil pipe between the outlet of the cooling device and the oil tank.

[0009] Preferably, a shut-off valve is provided on the pressurized return oil pipe connecting the outlet of the cooling device and the pressure valve.

[0010] Preferably, the hydraulic control module is also provided with a first reserved port and a second reserved port, the cooling device inlet is connected to the first reserved port, and the cooling device outlet is connected to the second reserved port.

[0011] The beneficial effects of this utility model are:

[0012] 1) The cooling device of this utility model is equipped with a proportional valve. The oil coming out of the proportional valve has a certain hydraulic pressure, which makes the flow through the cooler relatively large, thus improving the cooling effect. At the same time, an overpressure valve is connected between the inlet and outlet of the cooling device. When the oil pressure exceeds the cooling capacity range of the cooling device, the oil returns to the oil tank from the overpressure valve, thus protecting the safe operation of the cooling device.

[0013] 2) The first and second reserved ports of the hydraulic control module of this utility model are readily available reserved ports. The cooling device is connected to the reserved ports, which minimizes the cost of improvement and achieves the cooling purpose. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of a hydraulic system.

[0015] Explanation of reference numerals in the attached drawings: 1. First hose; 2. Hydraulic pump; 5. Motor; 7. Filter assembly; 9. Check valve; 10. Proportional valve; 11. Safety valve; 12. Flow control valve; 13. Second hose; 14. Third hose; 15. Overpressure valve; 16. Fan; 17. Cooler; 18. Pressure valve; 19. Shut-off valve; 20. Oil tank; T. Pressurized return oil pipe; T1. Unpressurized return oil pipe; 21. First reserved port; 22. Second reserved port; 23. Hydraulic control module; 24. Cooling device; 25. Cooling device inlet; 26. Cooling device outlet. Detailed Implementation

[0016] The present invention will be further described below with reference to embodiments. The description of the embodiments below is only for the purpose of helping to understand the present invention. It should be noted that, for those skilled in the art, several modifications can be made to the present invention without departing from the principle of the present invention, and these improvements and modifications also fall within the protection scope of the claims of the present invention.

[0017] As one embodiment, a bypass hydraulic control module reconfiguration structure is proposed, such as... Figure 1As shown, it includes: a hydraulic control module 23, a cooling device 24, an oil tank 20, an unpressurized return oil pipe T1, and a pressurized return oil pipe T; the cooling device 24 includes a cooling device inlet 25 and a cooling device outlet 26; the hydraulic control module 23 includes a proportional valve 10 and a safety valve 11, the inlets of the proportional valve 10 and the safety valve 11 are connected to the oil tank 20 through a filter assembly 7, and the outlet of the proportional valve 10 is connected to the cooling device inlet 25; the unpressurized return oil pipe T1 connects the outlet of the safety valve 11 to the oil tank 20; the pressurized return oil pipe T connects the cooling device outlet 26 to the oil tank 20; the cooling device 24 consists of a cooler 17 and a fan 16. The cooler 17 is composed of a third hose 14 and a proportional valve 10 outlet, and a second hose 13 and a pressurized return oil pipe T. Because the oil circulates continuously, a large amount of oil will cause the oil temperature to rise. If the oil is exposed to high ambient temperatures, the temperature will exceed unacceptable levels, accelerating the aging of sealing components and rapidly deteriorating the oil quality. When the oil temperature reaches 55°C, the fan 16 is activated; when the oil temperature drops to 50°C, the fan 16 stops. The cooler 17 and the fan 16 work together to cool the oil, preventing oil deterioration and extending the equipment's service life.

[0018] like Figure 1 As shown, the filter assembly 7 is used to filter oil. A pumping device is connected between the filter assembly 7 and the oil tank 20. The pumping device includes a first hose 1, a hydraulic pump 2, and a motor 5. The motor 5 controls the hydraulic pump 2 to pump the oil in the oil tank 20 into the filter assembly 7 through the first hose 1. A check valve 9 is connected to the outlet of the filter assembly 7 to prevent oil backflow. The hydraulic control module 23 also includes a flow control valve 12, which is connected in parallel at both the inlet and outlet of the safety valve 11.

[0019] like Figure 1 As shown, a proportional valve 10 is installed in front of the cooling device 24. The oil coming out of the proportional valve 10 has a certain hydraulic pressure, which makes the flow through the cooler 17 relatively large, thus improving the cooling effect. At the same time, the hydraulic control module 23 is also equipped with an overpressure valve 15. The overpressure valve 15 is connected to the cooling device inlet 25 and the cooling device outlet 26. When the oil pressure exceeds the cooling capacity range of the cooling device 24, the oil can return to the oil tank 20 from the overpressure valve 15, protecting the safe operation of the cooling device 24.

[0020] like Figure 1As shown, the pressure setting value of safety valve 11 is 280 bar, and the pressure setting value of proportional valve 10 is 260 bar. The pressure setting value of safety valve 11 is greater than the pressure setting value of proportional valve 10. Safety valve 11 is connected to oil tank 20, and proportional valve 10 is connected to cooling device 24, so that the pressure of oil entering cooling device 24 is between the pressure setting values ​​of safety valve 11 and proportional valve 10. When the oil pressure is 260-280 bar, oil flows into cooling device 24. When the oil pressure is greater than 280 bar, oil returns to oil tank 20, protecting cooling device 24 from overload.

[0021] like Figure 1 As shown, a pressure valve 18 is connected to the pressurized return oil pipe T between the outlet of the cooling device 24 and the oil tank 20 to prevent oil in the oil tank 20 from flowing into the cooling device 24; a shut-off valve 19 is connected to the pressurized return oil pipe T between the outlet of the cooling device 24 and the pressure valve 18. When the oil flow rate is too high, the shut-off valve 19 is opened to accelerate the flow of oil into the oil tank 20.

[0022] like Figure 1 As shown, the hydraulic control module 23 is also provided with a first reserved port 21 and a second reserved port 22. The cooling device inlet 25 is connected to the first reserved port 21, and the cooling device outlet 26 is connected to the second reserved port 22. The first reserved port 21 and the second reserved port 22 are existing reserved ports. The cooling device 24 is connected to the reserved ports, which reduces the cost of improvement and achieves the cooling purpose at the same time.

Claims

1. A bypass hydraulic control module reconfiguration structure, characterized in that, include: The system includes a hydraulic control module, a cooling device, an oil tank, an unpressurized return oil pipe, and a pressurized return oil pipe. The cooling device includes a cooling device inlet and a cooling device outlet. The hydraulic control module includes a proportional valve and a safety valve. The inlets of the proportional valve and the safety valve are connected to the oil tank via a filter assembly, and the outlet of the proportional valve is connected to the cooling device inlet. The unpressurized return oil pipe connects the outlet of the safety valve to the oil tank. The pressurized return oil pipe connects the outlet of the cooling device to the oil tank.

2. The bypass hydraulic control module reconfiguration structure according to claim 1, characterized in that, The cooling device consists of a cooler and a fan. The inlet of the cooler is connected to the liquid outlet of the proportional valve via a third hose, and the outlet of the cooler is connected to the pressurized return oil pipe via a second hose.

3. The bypass hydraulic control module reconfiguration structure according to claim 1, characterized in that, The hydraulic control module is also equipped with an overpressure valve, which is connected to the inlet and outlet of the cooling device.

4. The bypass hydraulic control module reconfiguration structure according to claim 1, characterized in that, The pressure setting value of the safety valve is greater than that of the proportional valve.

5. The bypass hydraulic control module reconfiguration structure according to claim 1, characterized in that, A pressure valve is connected to the pressurized return oil pipe between the outlet of the cooling device and the oil tank.

6. The bypass hydraulic control module reconfiguration structure according to claim 4, characterized in that, A shut-off valve is installed on the pressurized return oil pipe connecting the outlet of the cooling device and the pressure valve.

7. The bypass hydraulic control module reconfiguration structure according to claim 1, characterized in that, The hydraulic control module is also equipped with a first reserved port and a second reserved port. The inlet of the cooling device is connected to the first reserved port, and the outlet of the cooling device is connected to the second reserved port.

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