Valve body communicating structure
By designing the valve body communication structure and feedback oil circuit system, the problem of inconsistent pressure in the linkage of multiple winches is solved, and the pressure transmission between multiple actuators is achieved, which improves operating efficiency and safety.
Patent Information
- Application Number
- CN202422469755.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-12
- Publication Date
- 2025-08-01
- Estimated Expiration
- 2034-10-12
AI Technical Summary
When multi-windows are linked, it is difficult to achieve synchronous action and reasonable distribution of loads, especially in the distribution of hydraulic oil, which leads to a reduction in operating efficiency and safety.
A valve body communication structure is designed, through the pressure compensation valve and feedback oil circuit system, the working pressure value of the control table is transmitted to other control tables to ensure that the pressure values between multiple actuators are consistent. The LY feedback oil circuit and the LS feedback oil circuit are respectively connected to the spring cavity of the pressure compensation valve and the oil inlet part of the control table to realize pressure compensation and load distribution.
The synchronous transmission of pressure values during multi-windows linkage is realized, ensuring the consistent working pressure of each actuator and improving the efficiency and safety of operations.
Smart Images
Figure CN223177851U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of hydraulic transmission, and particularly relates to a valve body communication structure. Background Art
[0002] In many engineering and rescue operation scenarios, such as the towing of offshore ships, the pulling of large building components, the self-rescue and mutual rescue of off-road vehicles, etc., a single winch often fails to meet the requirements. The linkage of multiple winches has become an effective means to solve problems such as large loads and complex pulling directions. In ship towing operations, it may be necessary to apply pulling forces simultaneously from different angles. The linkage of multiple winches can provide more flexible and powerful pulling capabilities; the coordinated operation of different winches can be optimized and combined according to factors such as the shape and weight distribution of the operation object, improving the efficiency and safety of the operation. For example, in the hoisting and pulling of large building components, multiple winches pull from different directions to ensure the balance and stable movement of the components.
[0003] When multiple winches operate simultaneously, it is difficult to achieve synchronous actions and reasonable load distribution. For example, in a vehicle rescue scenario, if two winches are separately controlled by different operators without a coordination mechanism, it may lead to inconsistent pulling directions and even put the vehicle in a more dangerous situation; therefore, when multiple winches are linked, the reasonable distribution of hydraulic oil is particularly important. Summary of the Invention
[0004] The problem to be solved by the utility model is to obtain the pressure value borne by the valve body in the working console and transmit this pressure value to other consoles.
[0005] To achieve the above object, the technical solution of the utility model is: a valve body communication structure, the valve body is arranged in the console, the valve body includes a pressure compensation valve, a pressure valve cavity is opened on the console, the pressure compensation valve is arranged in the pressure valve cavity of the console, the console has an oil inlet part, a control part and an oil return part, the pressure compensation valve is arranged on the control part of the console, the oil inlet part and the oil return part are respectively located on opposite sides of the control part, an oil inlet port P is opened on the oil inlet part, and an oil return port T is opened on the oil return part; the pressure compensation valve is provided with a spring cavity, a first oil passage hole is opened on the side surface of the control part of the console, and the first oil passage hole communicates with the spring cavity of the pressure compensation valve; an LY oil passage hole is opened on the oil inlet part, and the LY oil passage hole communicates with the first oil passage hole; an LS oil passage hole is also opened on the oil inlet part, and the LS oil passage hole communicates with the spring cavity of the pressure compensation valve, the LY oil passage hole is connected with an LY feedback oil circuit, the LS oil passage hole is connected with an LS feedback oil circuit, and the LY feedback oil circuit communicates with the LS feedback oil circuit.
[0006] In this solution, when the console is working, the hydraulic oil flows through the LS feedback oil circuit to the spring cavity of the pressure compensation valve. At this time, the pressure in the spring cavity of the pressure compensation valve is consistent with the working pressure value. The hydraulic oil in the pressure spring cavity flows through the first oil passage hole and then through the LY oil passage hole, and then flows into the LY feedback oil circuit. The working pressure value is transmitted to other consoles through the LY feedback oil circuit. Brief Description of the Drawings
[0007] Figure 1 It is a top view of the overall structure of an embodiment of the present invention.
[0008] Figure 2 It is an exploded schematic view of the overall structure of an embodiment of the present invention.
[0009] Figure 3 It is Figure 1 a cross-sectional view taken along the line C-C in Detailed Description of the Embodiment
[0010] The present invention will be further described in detail below with reference to the drawings and specific embodiments.
[0011] As Figures 1 to 3 shown, a valve body communication structure, the valve body is arranged in the console, the valve body includes a pressure compensation valve 2, a pressure valve cavity 11 is opened on the console 1, the pressure compensation valve 2 is arranged in the pressure valve cavity 11 of the console 1, the console 1 has an oil inlet part 12, a control part 13 and an oil return part 14, the pressure compensation valve 2 is arranged on the control part 13 of the console 1, the oil inlet part 12 and the oil return part 14 are respectively located on opposite sides of the control part 13, an oil inlet P is opened on the oil inlet part 12, and an oil return port T is opened on the oil return part 14.
[0012] The pressure compensation valve 2 is provided with a spring cavity 21, a first oil passage hole 131 is opened on the side surface of the control part 13 of the console 1, and the first oil passage hole 131 is communicated with the spring cavity 21 of the pressure compensation valve 2; an LY oil passage hole 0 is opened on the oil inlet part 12, and the LY oil passage hole 0 is communicated with the first oil passage hole 131; an LS oil passage hole 122 is also opened on the oil inlet part 12, and the LS oil passage hole 122 is communicated with the spring cavity 21 of the pressure compensation valve 2, the LY oil passage hole 0 is connected with an LY feedback oil circuit, the LS oil passage hole is connected with an LS feedback oil circuit, and the LY feedback oil circuit is communicated with the LS feedback oil circuit.
[0013] When the console 1 is working, hydraulic oil flows into the console 1 from the oil inlet P. Part of the hydraulic oil flows through the LS oil hole 122 into the LS feedback oil circuit, and then flows into the spring chamber 21 of the pressure compensation valve 2 through the LS feedback oil circuit. At this time, the pressure value in the spring chamber 21 of the pressure compensation valve 2 is the working pressure value, and the hydraulic oil in the spring chamber 21 flows through the first oil hole 131 and the LY oil hole 0 into the LY feedback oil circuit, and transmits the working pressure value to other consoles 1 or actuators through the LY feedback oil circuit to ensure that the working pressure values among multiple actuators are consistent.
[0014] As Figure 2 shown, in this embodiment, an A oil port is opened on one side of the pressure compensation valve 2 on the control part 13 of the console 1, and a B oil port is opened on the side of the control part 13 opposite to the A oil port. The A oil port and the B oil port are communicated with the oil inlet P and the oil return port T. At the same time, the A oil port and the B oil port are connected to the actuator through a pipeline, and the console 1 is used to control the hydraulic oil to flow through the actuator.
[0015] In this embodiment, an LX oil hole 141 is opened on the oil return part 14. The LX oil hole 141 is communicated with the LS oil hole 122. The LX oil hole 141 is connected with an LX feedback oil circuit, and the LX feedback oil circuit is communicated with the LS feedback oil circuit. The maximum working pressure value is transmitted to the spring chamber 21 of the pressure compensation valve 2 through the LX and LS feedback oil circuits.
[0016] As Figure 3 shown, in this embodiment, a control handle 132 is arranged on the control part 13 of the console 1. The control handle 132 is connected with a reversing valve 3, and the connection and disconnection between the reversing valve 3 and the pressure compensation valve 2 are controlled through the control handle 132; the reversing valve 3 is located below the pressure compensation valve 2. The reversing valve 3 has a first output oil port 31. The first output oil port 31 of the reversing valve 3 is connected with a pressure oil circuit 133, and the pressure oil circuit 133 is communicated with the pressure valve cavity 11. The lower end of the pressure compensation valve 2 is movably located in the pressure oil circuit 133; the reversing valve 3 also has a second output oil port 32 and a first input oil port 33, and the second output oil port 32 and the first input oil port 33 are communicated with the pressure valve cavity 11.
[0017] By pushing the control handle 132, the connection and disconnection between the first output oil port 31 of the reversing valve 3 and the pressure oil circuit 133, and the connection and disconnection between the second output oil port 32 and the first input oil port 33 and the pressure valve cavity 11 are controlled; when the first output oil port 31 is communicated with the pressure oil circuit 133, hydraulic oil flows into the pressure oil circuit 133 to push the pressure compensation valve 2 upwards. After the pressure compensation valve 2 is pushed up, the second output oil port 32 is communicated with the first input oil port 33, and the hydraulic oil flows from the second output oil port 32 to the first input oil port 33, and then flows into the LS feedback oil circuit and the actuator connected to the oil ports A and B respectively.
[0018] In this embodiment, the oil port opening of the directional control valve 3 has a fixed size. By pushing the operating handle, the size of the part of each oil port of the directional control valve 3 communicating with the oil circuit can be controlled according to the load condition of the actuator, so as to control the flow rate of the hydraulic oil flowing into the actuator. When multiple actuators are linked, the working pressure value is transmitted to the spring chamber 21 of the pressure compensating valve 2 in the console 1 connected to each actuator through the LY oil circuit, that is, the pressure in the spring chamber 21 is the same. The operator only needs to push the directional control valve 3 according to the amount of load to control the size of the oil port of the directional control valve 3 communicating with the oil circuit. When multiple actuators are working and the load changes, the pressure value in the spring chamber 21 of the pressure compensating valve 2 will also change, so as to proportionally distribute the supply of hydraulic oil according to the load.
Claims
1. A valve body communication structure, the valve body is arranged in the console (1), characterized in that: The valve body includes a pressure compensation valve (2). A pressure valve cavity (11) is formed on the console (1). The pressure compensation valve (2) is arranged in the pressure valve cavity (11) of the console (1). The console (1) has an oil inlet part (12), a control part (13) and an oil return part (14). The pressure compensation valve (2) is arranged on the control part (13) of the console (1). The oil inlet part (12) and the oil return part (14) are respectively located on the opposite sides of the control part (13). An oil inlet P is formed on the oil inlet part (12), and an oil return port T is formed on the oil return part (14). The pressure compensation valve (2) is provided with a spring cavity (21). A first oil passage hole (131) is formed on the side surface of the control part (13) of the console (1). The first oil passage hole (131) is communicated with the spring cavity (21) of the pressure compensation valve (2). An LY oil passage hole (121) is formed on the oil inlet part (12). The LY oil passage hole (121) is communicated with the first oil passage hole (131). An LS oil passage hole (122) is further formed on the oil inlet part (12). The LS oil passage hole (122) is communicated with the spring cavity (21) of the pressure compensation valve (2). The LY oil passage hole (121) is connected with an LY feedback oil circuit, and the LS oil passage hole (122) is connected with an LS feedback oil circuit. The LY feedback oil circuit is communicated with the LS feedback oil circuit.
2. The valve body communication structure according to claim 1, characterized in that: An A oil port is formed on one side of the pressure compensation valve (2) on the control part (13) of the console (1), and a B oil port is formed on the side of the control part (13) opposite to the A oil port.
3. The valve body connection structure according to claim 1, characterized in that: An LX oil passage hole (141) is formed on the oil return part (14). The LX oil passage hole (141) is communicated with the LS oil passage hole (122). The LX oil passage hole (141) is connected with an LX feedback oil circuit.
4. The valve body communication structure according to claim 1, characterized in that: A control handle (132) is arranged on the control part (13) of the console (1). The control handle (132) is connected with a reversing valve (3). The connection and disconnection between the reversing valve (3) and the pressure compensation valve (2) are controlled by the control handle (132).
5. The valve body connection structure according to claim 4, characterized in that: The reversing valve (3) is located below the pressure compensation valve (2). The reversing valve (3) has a first output oil port (31). The first output oil port (31) of the reversing valve (3) is connected with a pressure oil circuit (133). The pressure oil circuit (133) is communicated with the pressure valve cavity (11). The lower end of the pressure compensation valve (2) is movably located in the pressure oil circuit (133).
6. The valve body communication structure according to claim 5, wherein: The reversing valve (3) further has a second output oil port (32) and a first input oil port (33). The second output oil port (32) and the first input oil port (33) are communicated with the pressure valve cavity (11).