Winch console

Abstract

A winch control board comprises a one-way valve, a multi-way reversing valve, a pressure compensation valve, a first shuttle valve, a pressure reducing valve and a second shuttle valve. The input end of the one-way valve is connected with the oil inlet P. The output end of the one-way valve is connected with the input end of the pressure reducing valve. One side of the multi-way reversing valve is connected with the oil inlet P, the output end of the pressure compensation valve and the oil return opening T, the other side of the multi-way reversing valve is connected with the input end of the pressure compensation valve, the first control end of the pressure compensation valve and the execution element, the output end of the pressure compensation valve is further connected with one end of the first shuttle valve, and the other end of the first shuttle valve is connected with the oil return opening T; the middle end of the first shuttle valve is connected with one end of the second shuttle valve; the output end of the pressure reducing valve is connected with the other end of the second shuttle valve, and the middle end of the second shuttle valve is connected with the feedback oil way. By means of the structure, operation of the winch operation table control system is more stable.

Description

Technical Field

[0001] The present invention relates to the technical field of hydraulic systems, and in particular to a winch control console. Background Art A hydraulic winch is a device that uses a hydraulic system to provide power. Its working principle is to convert pressure into mechanical energy through a hydraulic oil circuit, thereby driving the winch to rotate. Today, hydraulic winches are used in construction engineering, navigation, and emergency rescue. In order to control the work of the winch, the winch is often connected to a winch console. The winch console, as the control center of the winch, integrates various control components to achieve precise control and monitoring of the winch. Through the console, the operator can easily control the start, stop, speed adjustment, and direction control of the winch to ensure the safety of the winch. Full operation; the winch requires good working stability from start to stop. Therefore, when setting the hydraulic system of the operating table, it is generally necessary to set up a feedback oil circuit to better control the hydraulic oil circuit system of the winch. The traditional method is usually to collect feedback signals on the drive motor of the winch. In this way, when the winch is started, if the oil circuit between the hydraulic pump and the hydraulic motor of the winch is too long, signal lag is likely to occur, and a reversing valve is generally installed in the winch oil circuit system to control the start and stop of the winch. Then, if the steering valve is not operated, the feedback signal cannot be collected. Summary of the invention

[0002] The purpose of the present invention is to provide a winch operating console. By utilizing the structure of the present invention, a feedback signal can be obtained in time when the hydraulic control system of the winch operating console is started. After the hydraulic control system of the winch operating console is started, a feedback signal from the output end of the multi-way reversing valve can be obtained, making the operation of the hydraulic control system of the winch operating console more stable.

[0003] To achieve the above-mentioned purpose, the technical scheme of the present invention is: a winch control console, including an oil inlet part, a control part and an oil return part, an oil inlet port P is provided on the oil inlet part, an oil return port T is provided on the oil return part, and a multi-way reversing valve, a pressure compensating valve, a first shuttle valve, a pressure reducing valve, a check valve and a second shuttle valve are arranged in the control console, the input end of the check valve is connected to the oil inlet port P, and the output end of the check valve is connected to the input end of the pressure reducing valve; one side of the multi-way reversing valve is connected to the oil inlet port P, the output end of the pressure compensating valve and the oil return port T, the other side of the multi-way reversing valve is connected to the input end of the pressure compensating valve, the first control end of the pressure compensating valve and the actuator, the output end of the pressure compensating valve is also connected to one end of the first shuttle valve, the other end of the first shuttle valve is connected to the oil return port T, and the middle end of the first shuttle valve is connected to one end of the second shuttle valve; the output end of the pressure reducing valve is connected to the other end of the second shuttle valve, and the middle end of the second shuttle valve is connected to the feedback oil circuit.

[0004] The above-mentioned winch control panel has an oil inlet P connected to a hydraulic pump. When the hydraulic pump is started, the multi-way reversing valve is in operation. The hydraulic oil enters the pressure reducing valve through the oil inlet P through the one-way valve, and then enters the second shuttle valve after being stabilized by the pressure reducing valve. A feedback signal is given through the middle end of the second shuttle valve. In this way, a feedback signal is generated when the winch control panel is started; when the multi-way reversing valve is started, the hydraulic oil enters the pressure reducing valve through the oil inlet P through the one-way valve, and enters the pressure compensating valve through the multi-way reversing valve. Under the action of the hydraulic oil, the pressure compensating valve is opened, and the hydraulic oil at the input end of the pressure compensating valve enters the first shuttle valve through the pressure compensating valve, and then enters the second shuttle valve through the second shuttle valve. The middle end of a shuttle valve enters the other end of a second shuttle valve. If the hydraulic oil pressure at the other end of the second shuttle valve is greater than the pressure at the output end of the pressure reducing valve, the hydraulic oil at the other end of the second shuttle valve is given a feedback signal through the middle end of the second shuttle valve. If the hydraulic oil pressure at the other end of the second shuttle valve is less than the pressure at the output end of the pressure reducing valve, the hydraulic oil at the output end of the pressure reducing valve is given a feedback signal through the middle end of the second shuttle valve. In this way, on the one hand, the feedback signal can be selected, and on the other hand, when the hydraulic oil pressure at the other end of the second shuttle valve is greater than the pressure at the output end of the pressure reducing valve, the feedback signal at the output end of the multi-way valve can be obtained, making the operation of the hydraulic control system more stable.

[0005] Furthermore, a pressure valve cavity is opened on the control part, the pressure compensating valve is arranged in the pressure valve cavity of the control part, the pressure compensating valve is provided with a spring cavity, and a first oil hole is opened on the side of the control part, the first oil hole is connected with the spring cavity of the pressure compensating valve; the pressure signal value in the system is transmitted to the spring cavity of the pressure compensating valve through the first oil hole.

[0006] Furthermore, a LY oil hole is provided on the oil inlet portion, the LY oil hole is communicated with the first oil hole, and the LY oil hole is connected to a LY feedback oil circuit; an LS oil hole is also provided on the oil inlet portion, the LS oil hole is connected to an LS feedback oil circuit, and the LS feedback oil circuit is connected to the middle end of the first shuttle valve and one end of the second shuttle valve; the pressure difference of the hydraulic oil at both ends of the first shuttle valve and the second shuttle valve is used to filter the maximum pressure value signal of the system, and then the maximum pressure value signal is transmitted to the spring chamber of the pressure compensation valve through the LS feedback oil circuit.

[0007] Furthermore, an oil port A is provided on one side of the pressure compensation valve on the control part of the operating console, and an oil port B is provided on the side of the control part opposite to the oil port A; an operating handle is provided on the control part, and the operating handle is connected to the multi-way reversing valve, and the connection and disconnection of the reversing valve and the pressure compensation valve are controlled by the operating handle; the oil port A and the oil port B are respectively connected to the oil inlet and oil outlet of the actuator, and by turning the operating handle, the hydraulic oil is controlled to flow from the multi-way reversing valve and then flow into the actuator, thereby controlling the start and stop of the actuator.

[0008] Furthermore, the multi-way reversing valve is located below the pressure compensating valve, the multi-way reversing valve has a first output oil port, the first output oil port of the multi-way reversing valve is connected to the pressure valve chamber, and the lower end of the pressure compensating valve is movably located in the pressure oil circuit.

[0009] Furthermore, the reversing valve also has a second oil output port and a first oil input port, and the second oil output port and the first oil input port are communicated with the pressure valve chamber.

[0010] Furthermore, a first overflow valve is provided between the middle end of the first shuttle valve and the oil return port T0, so that the oil pressure at the middle end of the first shuttle valve can be better controlled, and a filter is provided between the middle end of the first shuttle valve and the first overflow valve, so that the first overflow valve can be better prevented from being blocked.

[0011] Furthermore, a second relief valve is connected between the oil inlet P and the oil return port T. This can better limit the oil pressure of the oil inlet P and better protect the hydraulic control system; the set pressure of the second relief valve is greater than the set pressure of the first relief valve. In this way, it can be ensured that after the multi-way reversing valve is switched, when the oil pressure of the hydraulic control system does not exceed the set pressure of the second relief valve, there is hydraulic oil at the middle end of the first shuttle valve.

[0012] Furthermore, a reversing valve is provided between the oil inlet P and the input end of the one-way valve, the input end of the reversing valve is connected to the oil inlet P, and the output end of the reversing valve is connected to the input end of the one-way valve and the control end of the reversing valve. In this way, it is possible to better control whether to supply oil to the pressure reducing valve.

[0013] Furthermore, a first stop valve is provided at the output end of the oil inlet P, a second stop valve is provided at the oil outlet T, and a third stop valve is provided between the output end of the one-way valve and the pressure gauge. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the overall hydraulic control system of an embodiment of the present invention; Figure 2 It is an exploded view of the overall structure of the winch control panel in the embodiment of the present invention; Figure 3 Schematic diagram of the structure of a multi-way reversing valve in an embodiment of the present invention; Figure 4 For the embodiment of the present invention Figure 1 The enlarged schematic diagram at A in the middle; Figure 5 It is a schematic diagram of the structure of a pressure compensation valve in an embodiment of the present invention; Figure 6 A top view of a winch control panel according to an embodiment of the present invention; Figure 7 for Figure 6 Sectional view at C-C in the middle. DETAILED DESCRIPTION

[0015] The present invention is further described in detail below with reference to the accompanying drawings and specific embodiments.

[0016] like Figure 1 As shown, a winch control console includes an oil inlet part 12, a control part 13 and an oil return part 14. An oil inlet port P is opened on the oil inlet part 12, and an oil return port T is opened on the oil return part 14. A multi-way reversing valve 2, a pressure compensation valve 3, a first shuttle valve 4, a pressure reducing valve 5, a one-way valve 8 and a second shuttle valve 7 are arranged in the control console 1.

[0017] The oil inlet P is used to connect to the hydraulic pump. The oil inlet P is connected to one side of the multi-way reversing valve 2 and the input end of the reversing valve 6. One side of the multi-way reversing valve 2 is also connected to one end of the first shuttle valve 4 and the oil return port T. The other side of the multi-way reversing valve 2 is connected to the input end of the pressure compensation valve 3, the first control end of the pressure compensation valve 3 and the actuator. In this embodiment, the multi-way reversing valve is a manual three-position nine-way reversing valve. Specifically, Figure 2 and Figure 3 As shown, in the original state of the multi-way reversing valve, the 01st end of the multi-way reversing valve 2 is connected to the oil inlet P, the 02nd end of the multi-way reversing valve 2 is connected to the input end of the pressure compensation valve 3 and the first control end of the pressure compensation valve 3, the 03rd end and the 04th end of the multi-way reversing valve 2 are empty, the 05th end of the multi-way reversing valve 2 is externally connected to the output end of the pressure compensation valve 3 and one end of the first shuttle valve 4, the 06th end and the 08th end of the multi-way reversing valve 2 are respectively connected to the A port and the B port of the actuator, the 07th end of the multi-way reversing valve 2 is externally connected to the oil outlet T, and the 09th end and the 010th end of the multi-way reversing valve 2 are empty.

[0018] like Figure 4 As shown, the pressure compensating valve 3 is a two-position two-way adjustable reversing valve; a pressure valve chamber 11 is provided on the control part 13, the pressure compensating valve 3 is arranged in the pressure valve chamber 11 of the control part 13, the pressure compensating valve 3 is provided with a spring chamber 35, a first oil hole 131 is provided on the side of the control part 13, and the first oil hole 131 is connected with the spring chamber 35 of the pressure compensating valve 3; an LY oil hole 121 is provided on the oil inlet part 12, the LY oil hole 121 is connected with the first oil hole 131, and the LY oil hole 121 is connected with the LY feedback oil circuit; the pressure compensating valve 3 includes an input end 31, a first control end 32, an output end 33 and a second control end 34, the output end 33 of the pressure compensating valve 3 is connected with one end of the first shuttle valve 4 and one side of the multi-way reversing valve, and the second control end 34 of the pressure compensating valve 3 has a spring, and the spring is arranged in the spring chamber 35.

[0019] An LS oil hole 122 is also provided on the oil inlet part 12, and the LS oil hole 122 is connected to the LS feedback oil circuit, and the LS feedback oil circuit is connected to the middle end of the first shuttle valve 4 and one end of the second shuttle valve 7; the hydraulic oil flows into the first shuttle valve 4 through the multi-way reversing valve 2 and the pressure compensation valve 3, and flows into the LS feedback oil circuit through the middle end of the first shuttle valve 4 and one end of the second shuttle valve 7, and the signal oil flowing into the LS feedback oil circuit after pressure screening by the first shuttle valve 4 and the second shuttle valve 7 is the maximum pressure signal value in the system, which unifies the pressure value when the system is working and improves the working stability of the system.

[0020] The other end of the first shuttle valve 4 is connected to the oil return port T, the middle end of the first shuttle valve 4 is connected to the other end of the second shuttle valve 7, and the middle end of the first shuttle valve 4 is connected to the first relief valve 5 through the filter 15, and the output end of the first relief valve 5 is connected to the oil return port T0. By providing the filter 15, the hydraulic oil entering the first relief valve 5 is filtered, which can better protect the first relief valve 5.

[0021] In this embodiment, an oil port A is provided on one side of the pressure compensation valve 3 on the control part 13 of the control console 1, and an oil port B is provided on the side of the control part 13 opposite to the oil port A; an operating handle 132 is provided on the control part 13, and the operating handle 132 is connected to the multi-way reversing valve 2, and the connection and disconnection between the reversing valve 3 and the pressure compensation valve 3 are controlled by the operating handle 132; the oil port A and the oil port B are respectively connected to the oil inlet and oil outlet of the actuator, and by turning the operating handle 132, the hydraulic oil is controlled to flow from the multi-way reversing valve 2 and then flow into the actuator, thereby controlling the start and stop of the actuator.

[0022] In this embodiment, the multi-way reversing valve 2 is located below the pressure compensating valve 3. The multi-way reversing valve 2 has a first oil output port 21. The first oil output port 21 of the multi-way reversing valve 3 is connected to the pressure valve chamber 11. The lower end of the pressure compensating valve 3 is movably located in the pressure oil circuit 133. The reversing valve 3 also has a second oil output port 22 and a first oil input port 23. The second oil output port 22 and the first oil input port 23 are connected to the pressure valve chamber 11.

[0023] The connection and disconnection between the first output oil port 21 of the reversing valve 3 and the pressure oil circuit 133, as well as the connection and disconnection between the second output oil port 22 and the first input oil port 23 and the pressure valve chamber 11 are controlled by pushing the operating handle 132; when the first output oil port 21 is connected to the pressure oil circuit 133, the hydraulic oil flows into the pressure oil circuit 133 to lift the pressure compensation valve 3 upward, and after the pressure compensation valve 3 is lifted, the second output oil port 22 is connected to the first input oil port 23, and the hydraulic oil flows from the second output oil port 22 to the first input oil port 23, and then flows to the LS feedback oil circuit and the actuators connected to the oil ports A and B respectively.

[0024] like Figure 1 and Figure 3 As shown, a reversing valve 6 is provided between the oil inlet P and the input end of the one-way valve 8, the input end of the reversing valve 6 is connected to the oil inlet P, and the output end of the reversing valve 6 is connected to the input end of the one-way valve 8 and the control end of the reversing valve 6. In this embodiment, the reversing valve 6 is a three-position three-way reversing valve. By providing the reversing valve 6, whether to supply oil to the pressure reducing valve 5 can be controlled according to the hydraulic oil pressure of the oil outlet P.

[0025] The output end of the one-way valve 8 is connected to the input end of the pressure reducing valve 5. In order to test the hydraulic pressure at the output end of the one-way valve 8, a pressure relief valve is installed at the output end P of the one-way valve 8. P A pressure gauge 9 is connected to the output end P of the check valve 8. P A third stop valve 83 is provided between the pressure gauge 9. When the hydraulic oil pressure needs to be detected, the third stop valve 83 is opened. When the hydraulic oil pressure does not need to be detected, the third stop valve 83 is closed. In the present invention, the one-way valve 8 is provided to prevent the hydraulic oil leading to the pressure reducing valve 5 from flowing back into the reversing valve 6.

[0026] In order to better protect the hydraulic control system, a second relief valve 7 is connected between the oil inlet P and the oil return port T. In the present invention, the set pressure of the second relief valve 7 is greater than the set pressure of the first relief valve 5. In this way, when the oil pressure at the oil inlet P is not greater than the set pressure of the second relief valve 7, oil supply to the pressure compensation valve 3 can be guaranteed.

[0027] The output end of the pressure reducing valve 5 is connected to one end of the second shuttle valve 7, the oil drain end of the pressure reducing valve 5 is connected to the oil outlet T0, and the set pressure of the pressure reducing valve 5 is less than the set pressure of the first relief valve 5. The middle end of the second shuttle valve 7 is connected to the feedback oil circuit.

[0028] In order to better control the hydraulic control system, a first stop valve 81 is provided at the output end of the oil inlet P. Only when the first stop valve 81 is opened can the hydraulic control system be normally supplied with oil. A second stop valve 82 is provided on the oil outlet T. Only when the second stop valve 82 is opened can oil return be realized.

[0029] In this embodiment, with the diagram as the viewing direction, if the hydraulic pump supplying oil to the oil inlet P is started and the first stop valve 81 is opened, the hydraulic oil first enters the pressure reducing valve 5 from the reversing valve 6 and the one-way valve 8. According to the set pressure of the pressure reducing valve 5, a constant oil pressure is generated at the output end of the pressure reducing valve 5, and oil is supplied to the feedback oil circuit through the second shuttle valve 7.

[0030] After the above steps, if the multi-way reversing valve 2 is pushed upward, Figure 1 and Figure 2As shown, part of the hydraulic oil at the oil inlet P passes through the multi-way reversing valve 2 and enters the input end and the control end of the pressure compensating valve 3, and causes the pressure compensating valve 3 to reverse. At this time, the pressure compensating valve 3 is turned on, and the hydraulic oil entering the input end of the pressure compensating valve 3 enters one end of the first shuttle valve 4 and one side of the multi-way reversing valve 2 through the output end of the pressure compensating valve 3. The hydraulic oil passing through the first shuttle valve 4 enters from the middle end of the first shuttle valve 4 to the other end of the second shuttle valve 7. The hydraulic oil entering one side of the multi-way reversing valve 2 enters the A port of the actuator, and the hydraulic oil at the B port of the actuator returns from the multi-way reversing valve 2 to the oil return port T, and then returns to the oil tank. If the hydraulic oil pressure at the other end of the second shuttle valve 7 is greater than the pressure at the output end of the pressure reducing valve 5, the hydraulic oil at the other end of the second shuttle valve 7 is given a feedback signal through the middle end of the second shuttle valve 7. If the hydraulic oil pressure at the other end of the second shuttle valve 7 is less than the pressure at the output end of the pressure reducing valve 5, the hydraulic oil at the output end of the pressure reducing valve 5 is given a feedback signal through the middle end of the second shuttle valve 7. In this way, on the one hand, the feedback signal can be selected, and on the other hand, when the hydraulic oil pressure at the other end of the second shuttle valve 7 is greater than the pressure at the output end of the pressure reducing valve 5, the feedback signal at the output end of the multi-way valve can be obtained, making the operation of the hydraulic control system more stable. Therefore, in the present invention, the feedback signal can be obtained in time when the winch operating platform is started, and the feedback signal at the output end of the multi-way reversing valve 2 can be obtained after the winch operating platform is started, making the operation of the winch operating platform more stable.

[0031] If the multi-way directional valve 2 is pushed downward, except that the oil inlet and oil outlet entering the A port and the B port of the actuator are interchanged, the rest of the working principle is consistent with the above.

[0032] In the present invention, the actuator is a hydraulic motor on the winch.

Claims

1. A winch control console, comprising an oil inlet portion (12), a control portion (13) and an oil return portion (14), wherein an oil inlet port P is provided on the oil inlet portion (12), and an oil return port T is provided on the oil return portion (14), wherein: The control console (1) is provided with a multi-way reversing valve (2), a pressure compensating valve (3), a first shuttle valve (4), a pressure reducing valve (5), a check valve (8) and a second shuttle valve (7). The input end of the check valve (8) is connected to the oil inlet P, and the output end of the check valve (8) is connected to the input end of the pressure reducing valve (5); one side of the multi-way reversing valve (2) is connected to the oil inlet P, the output end of the pressure compensating valve (3) and the oil return port T, and the other side of the multi-way reversing valve (2) is connected to the input end of the pressure compensating valve (3), the first control end of the pressure compensating valve (3) and the actuator; the output end of the pressure compensating valve (3) is also connected to one end of the first shuttle valve (4), the other end of the first shuttle valve (4) is connected to the oil return port T, and the middle end of the first shuttle valve (4) is connected to one end of the second shuttle valve (7); the output end of the pressure reducing valve (5) is connected to the other end of the second shuttle valve (7), and the middle end of the second shuttle valve (7) is connected to the feedback oil circuit.

2. The winch operating console according to claim 1, characterized in that: A pressure valve chamber (11) is provided on the control part (13), the pressure compensation valve (3) is arranged in the pressure valve chamber (11) of the control part (13), the pressure compensation valve (3) is provided with a spring chamber (35), and a first oil hole (131) is provided on a side surface of the control part (13), the first oil hole (131) being in communication with the spring chamber (35) of the pressure compensation valve (3).

3. The winch operating console according to claim 2, characterized in that: The oil inlet portion (12) is provided with an LY oil hole (121), the LY oil hole (121) is in communication with the first oil hole (131), and the LY oil hole (121) is connected to a LY feedback oil circuit; the oil inlet portion (12) is also provided with an LS oil hole (122), the LS oil hole (122) is connected to an LS feedback oil circuit, and the LS feedback oil circuit is connected to the middle end of the first shuttle valve (4) and one end of the second shuttle valve (7).

4. The winch operating console according to claim 2, characterized in that: An oil port A is provided on one side of the pressure compensation valve (3) on the control unit (13) of the control console (1), and an oil port B is provided on the side of the control unit (13) opposite to the oil port A; an operating handle (132) is provided on the control unit (13), and the operating handle (132) is connected to the multi-way reversing valve (2), and the connection and disconnection between the multi-way reversing valve (2) and the pressure compensation valve (3) are controlled by the operating handle (132).

5. The valve body communication structure according to claim 4, characterized in that: The multi-way reversing valve (2) is located below the pressure compensating valve (3), the multi-way reversing valve (2) has a first oil output port (21), the first oil output port (21) of the multi-way reversing valve (2) is connected to the pressure valve chamber (11), and the lower end of the pressure compensating valve (3) is movably located in the pressure oil circuit (133).

6. The valve body communication structure according to claim 5, characterized in that: The reversing valve (3) further comprises a second oil output port (22) and a first oil input port (23), and the second oil output port (22) and the first oil input port (23) are in communication with the pressure valve chamber (11).

7. The winch operating console according to claim 1, characterized in that: An oil return port T0 is provided on the oil inlet portion (12), a first overflow valve (5) is provided between the middle end of the first shuttle valve (4) and the oil return port T0, and a filter screen (15) is provided between the middle end of the first shuttle valve (4) and the first overflow valve (5).

8. The winch operating console according to claim 7, characterized in that: A second relief valve (7) is connected between the oil inlet port P and the oil return port T. The set pressure of the second relief valve (7) is greater than the set pressure of the first relief valve (5).

9. The winch operating console according to claim 1, characterized in that: A reversing valve (6) is provided between the oil inlet P and the input end of the one-way valve (8); the input end of the reversing valve (6) is connected to the oil inlet P, and the output end of the reversing valve (6) is connected to the input end of the one-way valve (8) and the control end of the reversing valve (6).

10. The winch operating console according to claim 1, characterized in that: A first stop valve (81) is provided at the output end of the oil inlet P, a second stop valve (82) is provided at the oil outlet T, and a third stop valve (83) is provided between the output end of the one-way valve (8) and the pressure gauge (9).

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