Hydraulic control system for industrial automation control

Abstract

The utility model relates to the technical field of hydraulic control systems, in particular to a hydraulic control system for industrial automation control, which comprises an oil inlet, a first one-way valve, a second one-way valve and a hydraulic control system, the first one-way valve is located between the oil inlet and the pressure reducing valve; an outlet of the pressure reducing valve is connected with an oil outlet; the energy accumulator is connected with the pressure reducing valve; the two ends of the first high-pressure ball valve are communicated with an inlet oil way and an outlet oil way of the second one-way valve respectively, and the second high-pressure ball valve is connected with the energy accumulator. Part of hydraulic oil can flow into the energy accumulator while hydraulic oil is supplied to a load, and when a power source is disconnected, short-term emergency oil supply can be provided; and continuous operation of the load is ensured. And meanwhile, the pressure sensor, the pressure reducing valve and the overflow valve work cooperatively, so that the system pressure stability can be enhanced and maintained, and the safety is improved.

Description

Technical Field

[0001] The present application relates to the technical field of hydraulic control systems, and in particular to a hydraulic control system for industrial automation control. Background Art

[0002] With the advancement of technology, the requirements for hydraulic systems in industrial automation are becoming increasingly stringent. Traditional hydraulic systems often suffer from issues such as low control accuracy, slow response time, and high maintenance costs. These limitations limit their widespread application in industrial automation. Therefore, developing efficient and stable hydraulic control systems has become a research priority. Hydraulic control systems currently available on the market fall into two main categories: mechanical control systems, which typically use mechanical components such as valves to regulate flow and pressure. However, due to the inherent limitations of mechanical components, these systems suffer from low control accuracy and slow response speeds. Electronic control systems, on the other hand, utilize electronic components to achieve precise flow and pressure control, but these systems are more expensive and have strict environmental requirements.

[0003] Existing hydraulic systems are limited in their ability to respond to emergencies. If a power source fails or the power goes out, the system often stops functioning immediately, losing the ability to provide emergency oil supply. This can cause production halts and even damage equipment. Therefore, providing a short-term emergency oil supply to ensure continuous operation of the load when the power source is disconnected has become a pressing issue. This project aims to develop a hydraulic control system for industrial automation to address this issue. Utility Model Content

[0004] In view of at least one of the above technical problems, the present application provides a hydraulic control system for industrial automation control, which adopts the following technical solution to solve the problem raised in the above background technology that once the power source fails or the power is cut off, the system often stops working immediately and cannot provide emergency oil supply.

[0005] According to one aspect of the present application, there is provided a hydraulic control system for industrial automation control, comprising:

[0006] The oil inlet is connected to the first one-way valve to provide hydraulic oil into the system.

[0007] The first one-way valve is located between the oil inlet and the pressure reducing valve. It only allows hydraulic oil to flow into the system from the oil inlet and prevents it from flowing in the opposite direction.

[0008] Pressure reducing valve, the outlet of the pressure reducing valve is connected to the oil outlet, and the pressure reducing valve is used to adjust the system pressure to ensure that the load receives a constant supply of hydraulic oil.

[0009] Accumulator: The accumulator is connected to the pressure reducing valve. The accumulator is used to store hydraulic oil and provide emergency energy support.

[0010] The first high-pressure ball valve, wherein both ends of the first high-pressure ball valve are respectively connected to the inlet oil circuit and the outlet oil circuit of the second one-way valve, the second high-pressure ball valve is connected to the accumulator, and the first high-pressure ball valve allows the hydraulic oil to flow out of the accumulator when the power source is disconnected.

[0011] The utility model is further configured such that the accumulator is connected to the pressure reducing valve via a second one-way valve, so as to control the flow of hydraulic oil to the accumulator.

[0012] The utility model is further configured such that the outlet of the pressure reducing valve is also connected to a pressure gauge interface, and the pressure gauge interface is used to install a pressure gauge to monitor the system pressure.

[0013] The utility model is further configured such that the outlet of the pressure reducing valve is also connected to an oil return port, which is connected to an oil return tank or an oil pool for collecting overflowed and refluxed hydraulic oil.

[0014] The utility model is further configured such that the accumulator is also connected to a second high-pressure ball valve, and the second high-pressure ball valve is used to supply oil to the accumulator after the power source is disconnected.

[0015] The utility model is further configured to include a relief valve, which is connected to the accumulator, the pressure reducing valve and the oil inlet. The relief valve is set higher than the system working pressure to prevent the system from over-pressurizing.

[0016] The utility model is further configured to include a pressure sensor, which is connected to the accumulator, the pressure reducing valve and the oil inlet. The pressure sensor is used to monitor the system pressure and provide judgment information on whether to control the power source to replenish oil.

[0017] The utility model is further configured such that the pressure reducing valve is provided with multiple stages, including a first-stage pressure reducing valve, a second-stage pressure reducing valve and a third-stage pressure reducing valve; the first-stage pressure reducing valve is used for initial pressure reduction, providing basic pressure to meet most load requirements, and when the first-stage pressure reducing valve cannot meet certain special load requirements, the second-stage pressure reducing valve is started to provide higher pressure, and if there is a higher pressure requirement, the third-stage pressure reducing valve is activated.

[0018] The utility model has the following technical effects:

[0019] This utility model not only supplies hydraulic oil to the load, but also diverts some of the hydraulic oil into the accumulator. This provides a short-term emergency oil supply when the power source is disconnected, ensuring continuous operation of the load. Furthermore, the pressure sensor, pressure reducing valve, and relief valve work together to maintain system pressure stability and improve safety. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the prior art. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.

[0021] Figure 1 It is a system diagram of this application.

[0022] Reference numerals:

[0023] 1. First one-way valve; 2. Pressure reducing valve; 3. Second one-way valve; 4. Accumulator; 5. First high-pressure ball valve; 6. Second high-pressure ball valve; 7. Overflow valve; 8. Pressure sensor; 9. Oil inlet; 10. Oil return port; 11. Oil outlet; 12. Pressure gauge interface. DETAILED DESCRIPTION

[0024] To make the above-mentioned objects, features, and advantages of the present application more clearly understood, the specific embodiments of the present application are described in detail below with reference to the accompanying drawings. The following description sets forth many specific details to facilitate a full understanding of the present application. However, the present application can be implemented in many other ways than those described herein, and those skilled in the art can make similar improvements without violating the scope of the present application. Therefore, the present application is not limited to the specific embodiments disclosed below.

[0025] In this embodiment of the present invention, Figure 1 As shown, a hydraulic control system for industrial automation control is provided, comprising:

[0026] The oil inlet 9 is connected to the first one-way valve 1 to provide hydraulic oil into the system.

[0027] The first one-way valve 1 is located between the oil inlet 9 and the pressure reducing valve 2, and only allows hydraulic oil to flow into the system from the oil inlet 9 and prevents it from flowing in the opposite direction.

[0028] The pressure reducing valve 2 has an outlet connected to the oil outlet 11. The pressure reducing valve 2 is used to adjust the system pressure to ensure that the load receives a constant supply of hydraulic oil.

[0029] The accumulator 4 is connected to the pressure reducing valve 2 and is used to store hydraulic oil to provide emergency energy support.

[0030] The first high-pressure ball valve 5, wherein both ends of the first high-pressure ball valve 5 are respectively connected to the inlet oil circuit and the outlet oil circuit of the second one-way valve 3, the second high-pressure ball valve 6 is connected to the accumulator 4, and the first high-pressure ball valve 5 allows the hydraulic oil to flow out of the accumulator 4 when the power source is disconnected.

[0031] The present invention is further configured such that the accumulator 4 is connected to the pressure reducing valve 2 via a second one-way valve 3 , so as to control the flow of hydraulic oil to the accumulator 33 .

[0032] The present invention is further configured such that the outlet of the pressure reducing valve 2 is also connected to a pressure gauge interface 12 , and the pressure gauge interface 12 is used to install a pressure gauge to monitor the system pressure.

[0033] The present invention is further configured such that the outlet of the pressure reducing valve 2 is further connected to an oil return port 10 , which is connected to an oil return tank or an oil pool for collecting overflowed and refluxed hydraulic oil.

[0034] The present invention is further configured such that the accumulator 4 is also connected to a second high-pressure ball valve 6 , and the second high-pressure ball valve 6 is used to supply oil to the accumulator 4 after the power source is disconnected.

[0035] The utility model is further configured to include a relief valve 7, which is connected to the accumulator 4, the pressure reducing valve 2 and the oil inlet 9. The relief valve 7 is set to a pressure higher than the system working pressure to prevent the system from over-pressurizing.

[0036] The present invention is further configured to include a pressure sensor 8. The pressure sensor 8 is connected to the accumulator 4, the pressure reducing valve 2 and the oil inlet 9. The pressure sensor 8 is used to monitor the system pressure and provide judgment information on whether to control the power source to replenish oil.

[0037] The utility model is further configured such that the pressure reducing valve 2 is provided with multiple stages, including a first-stage pressure reducing valve, a second-stage pressure reducing valve and a third-stage pressure reducing valve; the first-stage pressure reducing valve is used for initial pressure reduction, providing a basic pressure to meet most load requirements; when the first-stage pressure reducing valve cannot meet certain special load requirements, the second-stage pressure reducing valve is activated to provide a higher pressure; if there is a higher pressure requirement, the third-stage pressure reducing valve is activated

[0038] Working principle: After the power source is input, the hydraulic oil enters the system from the oil inlet 9, passes through the first one-way valve 1 to the pressure reducing valve 2, and the pressure reducing valve 2 is responsible for adjusting the system pressure to ensure that the load is supplied with a constant supply of hydraulic oil. Part of the hydraulic oil is directly supplied to the load, and at the same time, part of the hydraulic oil after decompression flows into the accumulator 4 through the second one-way valve 3. The pressure set by the pressure reducing valve 2 is lower than the inflation pressure of the accumulator 4, ensuring that the accumulator 4 always has sufficient pressure reserve. In addition, the overflow valve 7 is connected to the inlet and outlet oil system of the accumulator 4, and is set higher than the system working pressure to prevent the system from over-pressure. When the system pressure exceeds the set value, the overflow valve 7 opens to release excess hydraulic oil to ensure the safe operation of the system. During the above process, the pressure sensor 8 continuously monitors the system pressure and sends a signal to the controller to control the oil replenishment of the power source. The controller can adjust the output of the power source according to the signal of the pressure sensor 8 to keep the system pressure stable.

[0039] When the power source is accidentally disconnected, the first high-pressure ball valve 5 automatically opens, allowing the hydraulic oil to flow out of the accumulator 4. At this time, the pressure reducing valve 2 continues to work, reducing the pressure of the hydraulic oil in the accumulator 4 and supplying it to the load, ensuring continuous operation of the system.

[0040] The above are merely preferred embodiments of the present application and do not constitute any form of limitation to the present application. Any person skilled in the art can, without departing from the scope of the technical solution of the present application, use the methods and technical contents disclosed above to make many possible changes and modifications to the technical solution of the present application, or modify it into an equivalent embodiment with equivalent changes. Therefore, all equivalent changes made based on the shape, structure and principle of the present application without departing from the content of the technical solution of the present application should be included in the scope of protection of the present application.

Claims

1. A hydraulic control system for industrial automation control, characterized in that: include: An oil inlet (9), the oil inlet (9) is connected to the first one-way valve (1) and is used to provide hydraulic oil to enter the system; a first one-way valve (1), the first one-way valve (1) being located between the oil inlet (9) and the pressure reducing valve (2); A pressure reducing valve (2), wherein the outlet of the pressure reducing valve (2) is connected to an oil outlet (11); an accumulator (4), the accumulator (4) being connected to the pressure reducing valve (2); A first high-pressure ball valve (5), wherein both ends of the first high-pressure ball valve (5) are respectively connected to the inlet oil circuit and the outlet oil circuit of the second one-way valve (3).

2. A hydraulic control system for industrial automation control according to claim 1, characterized in that: The accumulator (4) is connected to the pressure reducing valve (2) via a second one-way valve (3).

3. The hydraulic control system for industrial automation control according to claim 1, characterized in that: The outlet of the pressure reducing valve (2) is also connected to a pressure gauge interface (12).

4. The hydraulic control system for industrial automation control according to claim 1, characterized in that: The outlet of the pressure reducing valve (2) is also connected to an oil return port (10).

5. The hydraulic control system for industrial automation control according to claim 1, characterized in that: The accumulator (4) is also connected to a second high-pressure ball valve (6).

6. The hydraulic control system for industrial automation control according to claim 1, characterized in that: It also includes an overflow valve (7), which is connected to the accumulator (4), the pressure reducing valve (2) and the oil inlet (9).

7. The hydraulic control system for industrial automation control according to claim 1, characterized in that: It also includes a pressure sensor (8), the pressure sensor (8), an accumulator (4), a pressure reducing valve (2) and an oil inlet (9).

8. The hydraulic control system for industrial automation control according to claim 1, characterized in that: The pressure reducing valve (2) is provided with multiple stages, including a first-stage pressure reducing valve, a second-stage pressure reducing valve and a third-stage pressure reducing valve.

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