Automatic control hydraulic system of water conservancy gate

Abstract

The utility model discloses an automatic control hydraulic system of a water conservancy gate. The automatic control hydraulic system comprises an oil storage module, a driving module, a locking control module, a lifting control module, a pair of locking oil cylinders and a pair of lifting oil cylinders. The oil storage module stores hydraulic oil; the input end of the driving module is connected with the oil storage module, the output end of the driving module is connected with the locking control module and the lifting control module, and the driving module pumps hydraulic oil of the oil storage module to the locking control module and the lifting control module; the locking control module is connected with the pair of locking oil cylinders and the oil storage module, and the locking control module conveys hydraulic oil to the locking oil cylinders and returns oil to the oil storage module; the lifting control module is connected with the pair of lifting oil cylinders and the oil storage module, and the lifting control module conveys hydraulic oil to the lifting oil cylinders and returns oil to the oil storage module. The hydraulic control system can meet all action control requirements of the hydraulic gate, is high in safety and low in cost, and can respectively realize full-automatic control and full-manual control.

Description

Technical Field

[0001] The utility model relates to the technical field of hydraulic systems, in particular to an automatic control hydraulic system for a water conservancy gate. Background Art

[0002] In the field of water conservancy projects, hydraulic gates are crucial for regulating water flow, controlling water levels, ensuring flood control, and managing water resources. Their operational efficiency and level of automation directly impact the stability and efficiency of the entire water conservancy system. With modern industry's increasing demands for product quality and production efficiency, the development of an automated hydraulic control system for hydraulic gates has become an urgent need within the industry. Summary of the Invention

[0003] According to an embodiment of the present utility model, there is provided an automatic control hydraulic system for a water conservancy gate, comprising: an oil storage module, a drive module, a locking control module, a lifting control module, a pair of locking cylinders and a pair of lifting cylinders;

[0004] The oil storage module stores hydraulic oil;

[0005] The input end of the driving module is connected to the oil storage module, and the output end of the driving module is connected to the locking control module and the lifting control module respectively. The driving module pumps the hydraulic oil in the oil storage module to the locking control module and the lifting control module;

[0006] The locking control module is connected to a pair of locking cylinders and an oil storage module. The locking control module delivers hydraulic oil to the locking cylinders and returns the oil to the oil storage module.

[0007] The lifting control module is connected to a pair of lifting cylinders and an oil storage module. The lifting control module delivers hydraulic oil to the lifting cylinders and returns the oil to the oil storage module.

[0008] Furthermore, the oil storage module includes: an oil tank, a level control indicator and an air filter;

[0009] The oil tank stores hydraulic oil;

[0010] The liquid level control indicator is arranged on the fuel tank and is used to monitor the liquid level of the fuel tank;

[0011] The air filter is arranged on the fuel tank and is used to filter the air;

[0012] The fuel tank is connected to the drive module, the locking control module and the lifting control module.

[0013] Furthermore, the drive module comprises: a pair of oil suction filters, a double gear pump and a drive motor;

[0014] The double gear pump is connected to the drive motor;

[0015] The duplex gear pump includes a small pump and a large pump;

[0016] A pair of oil suction filters are arranged in the oil storage module and are connected to the input end of the small pump and the input end of the large pump respectively;

[0017] The output end of the small pump is connected to the locking control module, and the output end of the large pump is connected to the lifting control module.

[0018] Furthermore, the locking control module includes: a pair of first electromagnetic reversing valves and a pair of superimposed hydraulically controlled one-way valves;

[0019] The oil inlets of a pair of first electromagnetic reversing valves are connected and connected to the output end of the small pump, and the oil drain ports of a pair of first electromagnetic reversing valves are connected and connected to the oil storage module;

[0020] A pair of first electromagnetic reversing valves are respectively connected to a pair of superimposed hydraulically controlled one-way valves, and a pair of superimposed hydraulically controlled one-way valves are respectively connected to a pair of locking cylinders;

[0021] The two working oil ports of the first electromagnetic reversing valve are respectively connected to the two oil inlets of the superimposed hydraulic control one-way valve, and are respectively connected to the two ends of the locking cylinder through the two oil outlets of the superimposed hydraulic control one-way valve.

[0022] Furthermore, the locking control module further comprises: a non-leakage solenoid valve, a first relief valve and a first pressure gauge;

[0023] The two ends of the non-leakage solenoid valve are respectively connected to the oil inlet and the oil drain port of a pair of first solenoid reversing valves;

[0024] The two ends of the first overflow valve are respectively connected to the oil inlet and the oil drain of a pair of first electromagnetic reversing valves;

[0025] The first pressure gauge is arranged at the input end of the first relief valve and is used to monitor the oil pressure.

[0026] Furthermore, the lifting control module includes: a second electromagnetic reversing valve, a high-pressure filter, an oil return filter and a pair of rectifier plates;

[0027] The two ends of the high-pressure filter are connected to the oil inlet of the large pump and the second electromagnetic reversing valve respectively;

[0028] The two ends of the oil return filter are respectively connected to the oil drain port of the second electromagnetic reversing valve and the oil storage module;

[0029] High-pressure filter and return oil filter filter hydraulic oil;

[0030] A pair of rectifier plates are respectively provided with a proportional throttle valve and a flow control valve, the input ends of the pair of rectifier plates are connected to the first working oil port of the second electromagnetic reversing valve, and the output ends of the pair of rectifier plates are respectively connected to the rod cavity ends of the pair of lifting cylinders;

[0031] The rodless cavity ends of a pair of lifting oil cylinders are connected and are also connected to the second working oil port of the second electromagnetic reversing valve.

[0032] Furthermore, the lifting control module further comprises: a superimposed relief valve, a second pressure gauge and a pressure transmitter;

[0033] The two ends of the superimposed relief valve are respectively connected to the oil inlet and the oil drain of the second electromagnetic reversing valve;

[0034] The second pressure gauge and the pressure transmitter are arranged at the input end of the superimposed relief valve. The second pressure gauge displays the oil pressure and the pressure transmitter outputs a pressure signal.

[0035] Furthermore, a two-position two-way valve and a third pressure gauge are connected in sequence between the rectifier plate and the lifting cylinder, and the third pressure gauge is used to display the oil pressure.

[0036] Furthermore, it also includes: a manual module, the manual module is connected to the oil storage module and a pair of lifting cylinders, and the manual module manually drives the lifting cylinders to move.

[0037] Furthermore, the manual module includes: a manual pump, a second relief valve, a manual reversing valve and a pair of plate-type ball valves;

[0038] The input end of the manual pump is connected to the oil storage module, and the output end of the manual pump is connected to the oil inlet of the manual reversing valve;

[0039] The first working oil port of the manual reversing valve is connected to the rodless cavity end of a pair of lifting cylinders, the second working oil port of the manual reversing valve is connected to the rod cavity end of a pair of lifting cylinders through a pair of plate ball valves, and the oil drain port of the manual reversing valve is connected to the oil storage module;

[0040] The two ends of the second overflow valve are respectively connected to the oil inlet and the oil drain port of the manual reversing valve.

[0041] The automatic control hydraulic system of the water conservancy gate according to the embodiment of the utility model can meet all the motion control requirements of the water conservancy gate, has high safety, low cost, and can realize full automatic control and full manual control respectively.

[0042] It is to be understood that both the foregoing general description and the following detailed description are exemplary, and are intended to provide further explanation of the technology as claimed. BRIEF DESCRIPTION OF THE DRAWINGS

[0043] Figure 1 This is a schematic diagram of an automated control hydraulic system for a water conservancy gate according to an embodiment of the present utility model;

[0044] Figure 2 This is a schematic diagram of an oil storage module of an automated control hydraulic system for a water conservancy gate according to an embodiment of the present utility model;

[0045] Figure 3 This is an enlarged view of the locking control module of the automatic control hydraulic system of the water conservancy gate according to the embodiment of the utility model;

[0046] Figure 4 An enlarged view of the lifting control module of the automatic control hydraulic system of the water conservancy gate according to an embodiment of the utility model. DETAILED DESCRIPTION

[0047] The preferred embodiments of the present invention will be described in detail below with reference to the accompanying drawings to further illustrate the present invention.

[0048] First, combine Figures 1 to 4 The automatic control hydraulic system of a water conservancy gate according to an embodiment of the present utility model is described, which is used for the hydraulic control of large water conservancy gates and has a wide range of application scenarios.

[0049] like Figures 1 to 4 As shown, the automatic control hydraulic system of the water conservancy gate according to the embodiment of the present utility model includes: an oil storage module, a drive module, a locking control module, a lifting control module, a pair of locking cylinders 1 and a pair of lifting cylinders 2.

[0050] Specifically, if Figures 1 to 4 As shown, in this embodiment, the oil storage module stores hydraulic oil; the input end of the drive module is connected to the oil storage module, and the output end of the drive module is connected to the locking control module and the lifting control module respectively. The drive module pumps the hydraulic oil from the oil storage module to the locking control module and the lifting control module; the locking control module is connected to a pair of locking cylinders 1 and the oil storage module, and the locking control module delivers hydraulic oil to the locking cylinder 1 and returns the oil to the oil storage module; the lifting control module is connected to a pair of lifting cylinders 2 and the oil storage module, and the lifting control module delivers hydraulic oil to the lifting cylinder 2 and returns the oil to the oil storage module. In this embodiment, the locking control module and the lifting control module achieve precise and independent control of the locking and lifting of the gate. The automated control system replaces traditional manual operation, greatly improving work efficiency and reducing labor costs and operation time. The locking control module ensures that the gate will not move accidentally when locked, while the lifting control module achieves smooth lifting and lowering of the gate by precisely controlling the extension and retraction of the cylinders, avoiding safety accidents caused by improper operation.

[0051] Specifically, if Figures 1 to 4As shown, in this embodiment, the oil storage module includes: an oil tank 31, a liquid level control indicator 32 and an air filter 33; the oil tank 31 stores hydraulic oil; the liquid level control indicator 32 is set on the oil tank 31, and is used to monitor the liquid level of the oil tank 31, so that the operator can timely understand the remaining amount of hydraulic oil, thereby avoiding equipment damage or accidents caused by depletion of hydraulic oil; the air filter 33 is set on the oil tank 31, and is used to filter air and maintain the cleanliness of the hydraulic oil; the oil tank 31 is connected to the drive module, the locking control module and the lifting control module.

[0052] Specifically, if Figures 1 to 4 As shown, in this embodiment, the drive module includes: a pair of oil suction filters 41, a double gear pump and a drive motor 42; the double gear pump is connected to the drive motor 42; the double gear pump includes a small pump 43 and a large pump 44, and the system can adjust the flow and pressure of the hydraulic oil according to different working requirements. The small pump 43 is used for the locking control module to provide a smaller flow and pressure to meet the needs of the locking action; the large pump 44 is used for the lifting control module to provide a larger flow and pressure to meet the greater power requirements of the gate lifting; a pair of oil suction filters 41 are arranged in the oil storage module, and are respectively connected to the input end of the small pump 43 and the input end of the large pump 44 to filter the hydraulic oil entering the gear pump and prevent impurities and contaminants from entering the pump body; the output end of the small pump 43 is connected to the locking control module, and the output end of the large pump 44 is connected to the lifting control module.

[0053] Further, if Figures 1 to 4 As shown, in this embodiment, the locking control module includes: a pair of first solenoid reversing valves 51 and a pair of superimposed hydraulically controlled one-way valves 52; the oil inlets of the pair of first solenoid reversing valves 51 are connected and connected to the output end of the small pump 43, and the oil drain ports of the pair of first solenoid reversing valves 51 are connected and connected to the oil storage module; the pair of first solenoid reversing valves 51 are respectively connected to a pair of superimposed hydraulically controlled one-way valves 52, and the pair of superimposed hydraulically controlled one-way valves 52 are respectively connected to a pair of locking cylinders 1; the two working oil ports of the first solenoid reversing valve 51 are respectively connected to the two oil inlets of the superimposed hydraulically controlled one-way valve 52, and are respectively connected to the two ends of the locking cylinder 1 through the two oil outlets of the superimposed hydraulically controlled one-way valve 52. The first electromagnetic reversing valve 51 is controlled by an electrical signal and can quickly and accurately switch the oil circuit to achieve precise control of the locking cylinder 1. The superimposed hydraulically controlled one-way valve 52 plays a role in maintaining pressure and preventing oil backflow in the system. When the locking cylinder 1 completes the locking action, the superimposed hydraulically controlled one-way valve 52 can maintain the pressure in the cylinder stable, prevent locking failure due to external pressure changes, and improve the stability and safety of gate locking.

[0054] Furthermore, Figures 1 to 4As shown, in this embodiment, the locking control module further includes: a non-leakage solenoid valve 53, a first relief valve 54 and a first pressure gauge 55; the two ends of the non-leakage solenoid valve 53 are respectively connected to the oil inlet and oil drain port of a pair of first electromagnetic reversing valves 51, which can quickly cut off the oil circuit when the system stops working or an abnormality occurs to prevent oil leakage, greatly reducing the safety hazards that may be caused by oil leakage and improving the overall safety of the system; the two ends of the first relief valve 54 are respectively connected to the oil inlet and oil drain port of a pair of first electromagnetic reversing valves 51, and when the system pressure exceeds the set value, it automatically opens and releases excess oil, thereby protecting system components from damage due to excessive pressure; the first pressure gauge 55 is arranged at the input end of the first relief valve 54 for monitoring the oil pressure.

[0055] Further, if Figures 1 to 4 As shown, in this embodiment, the lifting control module includes: a second electromagnetic reversing valve 61, a high-pressure filter 62, a return oil filter 63 and a pair of rectifier plates 64; the two ends of the high-pressure filter 62 are respectively connected to the large pump 44 and the oil inlet of the second electromagnetic reversing valve 61; the two ends of the return oil filter 63 are respectively connected to the oil drain port of the second electromagnetic reversing valve 61 and the oil storage module; the high-pressure filter 62 and the return oil filter 63 filter the hydraulic oil, and the two filters are respectively arranged on the oil inlet path and the oil return path of the hydraulic oil, effectively filtering out impurities and pollutants in the hydraulic oil, ensuring the hydraulic oil entering the lifting cylinder 2 Oil cleanliness; a pair of rectifier plates 64 are respectively provided with a proportional throttle valve 65 and a flow control valve 66 to adjust the flow and pressure of the hydraulic oil. The input ends of a pair of rectifier plates 64 are connected and connected to the first working oil port of the second electromagnetic reversing valve 61. The output ends of a pair of rectifier plates 64 are respectively connected to the rod cavity ends of a pair of lifting cylinders 2. The rectifier plates 64 utilize the principle of a bridge rectifier circuit and four one-way valves, which are connected in pairs to control the flow direction of the hydraulic oil and realize dual control of flow and pressure; the rodless cavity ends of a pair of lifting cylinders 2 are connected and connected to the second working oil port of the second electromagnetic reversing valve 61.

[0056] Furthermore, Figures 1 to 4 As shown, in this embodiment, the lifting control module further includes: a superimposed relief valve 67, a second pressure gauge 68 and a pressure transmitter 69; the two ends of the superimposed relief valve 67 are respectively connected to the oil inlet and oil drain port of the second electromagnetic reversing valve 61, which serves as a safety valve to limit the maximum pressure of the system and prevent the system from overloading; the second pressure gauge 68 and the pressure transmitter 69 are arranged at the input end of the superimposed relief valve 67, the second pressure gauge 68 displays the oil pressure, and the pressure transmitter 69 outputs a pressure signal to facilitate remote monitoring and control.

[0057] Furthermore, Figures 1 to 4As shown, in this embodiment, a 2 / 2-way valve 7 and a third pressure gauge 8 are sequentially connected between the rectifier plate 64 and the lift cylinders 2. The third pressure gauge 8 is used to display the oil pressure. The 2 / 2-way valve 7 is a 2 / 2-way directional shut-off valve. Through the rectifier plate 64, the 2 / 2-way valve 7, and the pressure gauge, the hydraulic oil flow and pressure in the pair of lift cylinders 2 are maintained consistent, achieving synchronous lifting.

[0058] Specifically, if Figures 1 to 4 As shown, in this embodiment, it also includes: a manual module, the manual module is connected to the oil storage module and a pair of lifting cylinders 2, and the manual module manually drives the lifting cylinders 2 to ensure that the gate can work normally when there is no electricity.

[0059] Further, if Figures 1 to 4 As shown, in this embodiment, the manual module includes: a manual pump 91, a second relief valve 92, a manual reversing valve 93, and a pair of plate-type ball valves 94. The input end of the manual pump 91 is connected to the oil storage module, and the output end of the manual pump 91 is connected to the oil inlet of the manual reversing valve 93. The first working oil port of the manual reversing valve 93 is connected to the rodless chamber end of the pair of lift cylinders 2. The second working oil port of the manual reversing valve 93 is connected to the rod chamber end of the pair of lift cylinders 2 through a pair of plate-type ball valves 94. The oil drain port of the manual reversing valve 93 is connected to the oil storage module. The two ends of the second relief valve 92 are respectively connected to the oil inlet and oil drain port of the manual reversing valve 93. The manual module serves as a redundant component of the hydraulic system, increasing the system's reliability and fault tolerance. The design of components such as the manual pump 91 and the manual reversing valve 93 allows operators to directly operate the system without relying on electricity. The second relief valve 92 is configured to limit the maximum pressure output by the manual pump 91.

[0060] like Figures 1 to 4 As shown, this hydraulic system uses dual gear pumps to independently control the gate's lift and lock functions. A small pump 43 uses the working medium to power the cylinder controlling the gate's lock, while a large pump 44 uses the working medium to power the cylinder controlling the gate's lift. Due to the gate's heavy weight and limited installation space for the control system, the lift is controlled by two cylinders. The speeds of the two cylinders are controlled by a proportional throttle valve 65 and a flow control valve 66, ensuring synchronized operation. When the two cylinders control the gate's lift to the desired position, an electrical signal controls the leak-proof solenoid valve 53, closing it and locking the working medium within the cylinders to maintain pressure for a long time. The two cylinders in the locking function can operate independently or simultaneously. After the electrical signal-controlled cylinders complete their operation, a hydraulic lock (i.e., a hydraulically controlled check valve 52) maintains pressure. Both pump outlets in this system are equipped with relief valves to ensure long-term operation. However, when the cylinders are not operating, the working medium temperature in the system does not rise too rapidly.

[0061] Above, refer to Figures 1 to 4 The invention describes an automatic control hydraulic system for a water conservancy gate according to an embodiment of the invention, which can meet all motion control requirements of the water conservancy gate, has high safety, low cost, and can realize full automatic control and full manual control respectively.

[0062] It should be noted that, in this specification, the terms "comprises," "includes," or any other variations thereof are intended to encompass non-exclusive inclusion, such that a process, method, article, or apparatus comprising a series of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus. In the absence of further limitations, the elements defined by the phrase "comprising..." do not exclude the presence of other identical elements in the process, method, article, or apparatus comprising the elements.

[0063] Although the present invention has been described in detail through the above preferred embodiments, it should be understood that the above description should not be considered as limiting the present invention. After reading the above description, various modifications and alternatives to the present invention will be readily apparent to those skilled in the art. Therefore, the scope of protection of the present invention shall be defined by the appended claims.

Claims

1. An automatic control hydraulic system for a water conservancy gate, characterized in that: Includes: oil storage module, drive module, locking control module, lifting control module, a pair of locking cylinders and a pair of lifting cylinders; The oil storage module stores hydraulic oil; The input end of the driving module is connected to the oil storage module, and the output end of the driving module is connected to the locking control module and the lifting control module respectively. The driving module pumps the hydraulic oil in the oil storage module to the locking control module and the lifting control module; The locking control module is connected to the pair of locking cylinders and the oil storage module, and the locking control module delivers the hydraulic oil to the locking cylinders and returns the oil to the oil storage module; The lifting control module is connected to the pair of lifting cylinders and the oil storage module. The lifting control module delivers the hydraulic oil to the lifting cylinders and returns the oil to the oil storage module.

2. The automatic control hydraulic system for water conservancy gates according to claim 1, characterized in that: The oil storage module includes: an oil tank, a liquid level control indicator and an air filter; The oil tank stores the hydraulic oil; The liquid level control indicator is provided on the oil tank and is used to monitor the liquid level of the oil tank; The air filter is arranged on the fuel tank and is used to filter the air; The oil tank is connected to the driving module, the locking control module and the lifting control module.

3. The automatic control hydraulic system for water conservancy gates according to claim 1, characterized in that: The drive module includes: a pair of oil suction filters, a double gear pump and a drive motor; The double gear pump is connected to the drive motor; The double gear pump comprises a small pump and a large pump; The pair of oil suction filters are arranged in the oil storage module and are respectively connected to the input end of the small pump and the input end of the large pump; The output end of the small pump is connected to the locking control module, and the output end of the large pump is connected to the lifting control module.

4. The automatic control hydraulic system for water conservancy gates according to claim 3, characterized in that: The locking control module includes: a pair of first electromagnetic reversing valves and a pair of superimposed hydraulically controlled one-way valves; The oil inlets of the pair of first electromagnetic reversing valves are connected to each other and are connected to the output end of the small pump; the oil drain ports of the pair of first electromagnetic reversing valves are connected to each other and are connected to the oil storage module; The pair of first electromagnetic reversing valves are respectively connected to the pair of superimposed hydraulically controlled one-way valves, and the pair of superimposed hydraulically controlled one-way valves are respectively connected to the pair of locking cylinders; The two working oil ports of the first electromagnetic reversing valve are respectively connected to the two oil inlets of the superimposed hydraulically controlled one-way valve, and are respectively connected to the two ends of the locking cylinder through the two oil outlets of the superimposed hydraulically controlled one-way valve.

5. The automatic control hydraulic system for water conservancy gates according to claim 4, characterized in that: The locking control module further comprises: a non-leakage solenoid valve, a first relief valve and a first pressure gauge; The two ends of the non-leakage solenoid valve are respectively connected to the oil inlet and the oil drain port of the pair of first solenoid reversing valves; The two ends of the first overflow valve are respectively connected to the oil inlet and the oil drain of the pair of first electromagnetic reversing valves; The first pressure gauge is arranged at the input end of the first relief valve and is used to monitor the oil pressure.

6. The automatic control hydraulic system for water conservancy gates according to claim 3, characterized in that: The lifting control module includes: a second electromagnetic reversing valve, a high-pressure filter, an oil return filter and a pair of rectifier plates; The two ends of the high-pressure filter are respectively connected to the oil inlet of the large pump and the second electromagnetic reversing valve; The two ends of the oil return filter are respectively connected to the oil drain port of the second electromagnetic reversing valve and the oil storage module; The high-pressure filter and the return oil filter filter the hydraulic oil; The pair of rectifier plates are respectively provided with a proportional throttle valve and a flow control valve, the input ends of the pair of rectifier plates are connected to the first working oil port of the second electromagnetic reversing valve, and the output ends of the pair of rectifier plates are respectively connected to the rod cavity ends of the pair of lifting cylinders; The rodless cavity ends of the pair of lifting cylinders are connected to each other and are also connected to the second working oil port of the second electromagnetic reversing valve.

7. The automatic control hydraulic system for water conservancy gates according to claim 6, characterized in that: The lifting control module further comprises: a superimposed relief valve, a second pressure gauge and a pressure transmitter; The two ends of the superimposed relief valve are respectively connected to the oil inlet and the oil drain of the second electromagnetic reversing valve; The second pressure gauge and the pressure transmitter are arranged at the input end of the superimposed relief valve, the second pressure gauge displays the oil pressure, and the pressure transmitter outputs a pressure signal.

8. The automatic control hydraulic system for a water conservancy gate according to claim 6 or 7, characterized in that: A two-position two-way valve and a third pressure gauge are connected in sequence between the rectifier plate and the lifting cylinder, and the third pressure gauge is used to display the oil pressure.

9. The automatic control hydraulic system for water conservancy gates according to claim 1, characterized in that: It also includes a manual module, which is connected to the oil storage module and the pair of lifting cylinders, and the manual module manually drives the lifting cylinders to move.

10. The automatic control hydraulic system for water conservancy gates according to claim 9, characterized in that: The manual module includes: a manual pump, a second relief valve, a manual reversing valve and a pair of plate-type ball valves; The input end of the manual pump is connected to the oil storage module, and the output end of the manual pump is connected to the oil inlet of the manual reversing valve; The first working oil port of the manual reversing valve is connected to the rodless cavity ends of the pair of lifting cylinders, the second working oil port of the manual reversing valve is connected to the rod cavity ends of the pair of lifting cylinders through the pair of plate-type ball valves, and the oil drain port of the manual reversing valve is connected to the oil storage module; Two ends of the second overflow valve are respectively connected to the oil inlet and the oil drain of the manual reversing valve.

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