Multi-winch connecting oil way

Abstract

A multi-winch connecting oil way comprises a variable pump station, an oil tank, a first signal amplifier and more than three executive components, feedback oil ways are further connected among the executive components and comprise an LS feedback oil way, an LX feedback oil way and an LY feedback oil way, the LS feedback oil way of the head executive component is connected with the control end of the first signal amplifier, and the LX feedback oil way of the head executive component is connected with the control end of the second signal amplifier. The LS feedback oil way and the LX feedback oil way of every two adjacent execution elements are connected, the LS feedback oil way and the LX feedback oil way of each independent execution element are connected in the corresponding execution element through a valve, and the LY feedback oil ways of the head execution element, the middle execution element and the tail execution element are connected together in parallel. The control signal feedback oil paths LY among the plurality of executive components are connected in parallel, so that the pressure differences among the executive components are consistent, and a certain executive component can be accurately controlled independently.

Description

Technical Field

[0001] The utility model relates to the technical field of oil supply of hydraulic pump stations, in particular to a multi-winch connecting oil circuit. Background Art

[0002] A hydraulic winch is a device powered by a hydraulic system. Its operating principle is to convert pressure into mechanical energy through hydraulic oil circuits, thereby driving the winch's rotation. When multiple hydraulic winches need to operate simultaneously, connecting the oil circuits allows them to work together, improving work efficiency and rescue capabilities. The flow and pressure transmission of hydraulic oil allows for centralized control and management of multiple winches. In practical applications, the technology of connecting multiple hydraulic winches with oil circuits is widely used in vehicle rescue, engineering construction, outdoor exploration, and other fields. This technology is particularly important in situations requiring large amounts of traction or the coordinated operation of multiple winches. Summary of the Invention

[0003] In order to solve the problem of multi-winch linkage control, the utility model provides a multi-winch connection oil circuit

[0004] To achieve the above-mentioned purpose, the technical solution of the present invention is: a multi-winch connecting oil circuit, including a variable pump station, an oil tank, a signal amplifier, two or more winches and two or more winch control consoles, the input end of the variable pump station is connected to the output end of the oil tank, the output end of the variable pump station is connected to the input end of the signal amplifier, the output end of the variable pump station is connected to the oil inlet of multiple winch control consoles, the oil outlets of multiple winch control consoles are connected to the input port of the oil tank, the winches are connected one-to-one with the winch control consoles, the winch control consoles are provided with a reversing valve, a pressure balancing valve and a shuttle valve, one side of the reversing valve is connected to the output end of the variable pump station, the input end of the oil tank and the output end of the pressure compensating valve, and the other side is connected to the input end of the pressure compensating valve and the winch, and the shuttle valve is connected to the pressure compensating valve.

[0005] The winch control panel is connected to a feedback oil circuit, which includes the LS feedback oil circuit, the LX feedback oil circuit and the LY feedback oil circuit. The LS feedback oil circuits of adjacent winch control panels are connected to the LX feedback oil circuit, and the LY feedback oil circuits of all winch control panels are connected together. The LY feedback oil circuit is connected to the spring chamber of the pressure compensating valve, and the LS feedback oil circuit and the LX feedback oil circuit are connected to the shuttle valve.

[0006] This solution connects the oil inlets of multiple winch control panels with the output ends of the variable pump station, the oil return ports of multiple winch control panels with the input ends of the oil tank, and multiple winches are connected to the winch control panels one-to-one. The hydraulic oil is transported to the winch control panels through the variable pump station, and the hydraulic oil flowing through the winch control panels is transported to the connected winches by controlling the reversing valve in the winch control panels, and then returned to the oil tank; each winch control panel is connected to an LS feedback oil circuit and an LX feedback oil circuit through a shuttle valve, and the LS feedback oil circuit and the LX feedback oil circuit between adjacent winch control panels are connected, so that the control signal oil of any winch control panel can be fed back to the control end of the signal amplifier through the LS feedback oil circuit, thereby shortening the execution time of the winch; the LY feedback oil circuits connected in parallel make the pressure of the spring chamber of each pressure compensation valve consistent, so that the degree of opening of the reversing valve determines the amount of hydraulic oil flowing to the winch connected to the winch control panel, thereby realizing linkage control between multiple winches. BRIEF DESCRIPTION OF THE DRAWINGS

[0007] Figure 1 This is a schematic diagram of the overall hydraulic system of an embodiment of the utility model;

[0008] Figure 2 This is a schematic diagram of the hydraulic system of the head winch console in the embodiment of the present utility model;

[0009] Figure 3 This is a schematic diagram of a reversing valve in an embodiment of the present utility model;

[0010] Figure 4 This is a schematic diagram of the hydraulic system of the tail winch console in the embodiment of the present utility model;

[0011] Figure 5 This is a schematic diagram of the winch hydraulic system in an embodiment of the present utility model. DETAILED DESCRIPTION

[0012] The present invention will be described in further detail below with reference to the accompanying drawings and specific implementation methods.

[0013] like Figures 1 to 2As shown, a multi-winch connection oil circuit includes a variable pump station 1, an oil tank 2, a signal amplifier 3, two or more winches 4 and two or more winch control consoles 5. In this embodiment, there are two winch control consoles 5 and winches 4. The number of winch control consoles 5 and winches 4 can be increased according to the usage scenario, and the number of variable pump stations 1 can also be increased. In this embodiment, there is one variable pump station 1, the input end of the variable pump station 1 is connected to the output end of the oil tank 2, the output end of the variable pump station 1 is connected to the input end of the signal amplifier 3, and the variable pump station The output end of 1 is connected to the oil inlet of multiple winch control panels 5, the oil outlets of multiple winch control panels 5 are connected to the input port of the oil tank 2, and the winch 4 is connected one-to-one with the winch control panel 5. It is characterized in that: the winch control panel 5 is provided with a reversing valve 51, a pressure compensating valve 52 and a shuttle valve 53, one side of the reversing valve 51 is connected to the output end of the variable pump station 1, the input end of the oil tank 2 and the output end of the pressure compensating valve 52, and the other side is connected to the input end of the pressure compensating valve 52 and the winch 4, and the shuttle valve 53 is connected to the pressure compensating valve 52.

[0014] The winch control panel 5 is connected to a feedback oil circuit, which includes an LS feedback oil circuit, an LX feedback oil circuit and a LY feedback oil circuit. The LS feedback oil circuits of adjacent winch control panels 5 are connected to the LX feedback oil circuit, and the LY feedback oil circuits of all winch control panels 5 are connected together. The LY feedback oil circuit is connected to the spring chamber of the pressure compensation valve 52, and the LS feedback oil circuit and the LX feedback oil circuit are connected to the shuttle valve 53; the winch control panel 5 includes a head winch control panel 6, a middle winch control panel 7 and a tail winch control panel 8, and the head winch control panel 6, the middle winch control panel 7 and the tail winch control panel 8 are all connected to the winch 4.

[0015] like Figures 2 to 3 As shown, multiple winch control consoles 5 are connected to the output end of the variable pump station 1, and hydraulic oil is pumped into the multiple winch control consoles 5 through the variable pump station 1. The user manually pushes the reversing valve 51 in the winch control console 5 connected to the winch 4 to be controlled. In this embodiment, the reversing valve 51 is a three-position six-way manual reversing valve 51. When the reversing valve 51 moves in one direction, the hydraulic oil output by the variable pump station 1 flows into the reversing valve 51 through the P port, and the hydraulic oil flows from the C port of the reversing valve 51 to the pressure compensation valve 52. After passing through the pressure compensation valve 52, part of the hydraulic oil flows from the D port of the reversing valve 51 to the A port of the reversing valve 51, and then flows into the winch 4 through the B2 port, and then flows to the B port through the A2 port, and then flows out through the E port of the reversing valve 51 to the return oil port T and flows back to the oil tank 2, so that the winch 4 can move in one direction.

[0016] When the reversing valve 51 moves in the other direction, the hydraulic oil output by the variable pump station 1 flows into the reversing valve through the P port, and the hydraulic oil flows from the G port of the reversing valve 51 to the pressure compensation valve 52. After passing through the pressure compensation valve 52, part of the hydraulic oil flows from the F port of the reversing valve 51 to the B port of the reversing valve 51, and then flows into the winch 4 through the A2 port, and then flows to the A port through the B2 port, and then flows out through the I port of the reversing valve 51 to the oil return port T and flows back to the oil tank 2, so that the winch 4 can move in the other direction.

[0017] In the above process, when the hydraulic oil flows to the reversing valve 51 through the pressure compensating valve 52, part of the hydraulic oil flows to the shuttle valve 53 and then flows into the LS feedback oil circuit. Since the LS feedback oil circuits on all winch control consoles 5 are connected together, no matter which winch control console 5's reversing valve is pushed, the signal oil will be transported to the LS feedback oil circuit of the head winch control console 6 through the LS feedback oil circuit, and then flow to the control end of the signal amplifier 3, so that the signal amplifier 3 is turned on, and then the signal oil is input to the feedback end of the variable pump station 1 through the signal amplifier 3 to generate a load signal, and the variable pump station 1 increases the output of the hydraulic oil; another part of the hydraulic oil flows into the LY feedback oil circuit. Since the LY feedback oil circuits are all connected in parallel, the signal oil is input into the spring chamber of the pressure compensating valve 52 through the LY feedback oil circuit, so that the pressure of the spring chamber of each pressure compensating valve is consistent, so that the hydraulic oil flows evenly to each winch control console 5, and the amount of hydraulic oil flowing to the capstan 4 is controlled by the opening size of the reversing valve 51.

[0018] like Figure 2 and Figure 4 As shown, in this embodiment, in the head winch control panel 6, the LS feedback oil circuit is connected to the pressure compensating valve 52, and in the middle winch control panel 7 and the tail winch control panel 8, a plug 10 is provided between the LS feedback oil circuit and the pressure compensating valve 52, so that when the signal oil in the LS feedback oil circuit of the head winch control panel 6 flows to the LS feedback oil circuit of the middle winch control panel 7 and the tail winch control panel 8, it will not flow to the pressure compensating valve 52, and there is no plug 10 between the LS feedback oil circuit of the head winch control panel 6 and the spring chamber of the pressure compensating valve 52, and the LS feedback oil circuit and the spring chamber of the pressure compensating valve 52 are connected, and part of the hydraulic oil flows to the LY feedback oil circuit through the spring chamber of the pressure compensating valve 52, that is, the signal oil in the LY feedback oil circuit can only flow out from the LY feedback oil circuit in the head winch control panel 6, and then flow to the spring chambers of the pressure compensating valves 52 in other winch control panels 5, so that the pressures of the spring chambers of all pressure compensating valves 52 are consistent.

[0019] like Figure 2As shown, in this embodiment, a second signal amplifier 61 is further provided in the head winch control panel 6, the input end of the second signal amplifier 61 is connected to the variable pump station 1, the pressure compensation valve 52 is connected to the control end of the second signal amplifier 61 through the LY feedback oil circuit, and the output end of the second signal amplifier 61 is connected to the LY feedback oil circuit; when the LY feedback oil circuit in the head winch control panel obtains the signal oil from the LS feedback oil circuit and transmits the signal oil to the LY feedback oil circuit in other winch control panels 5, it will flow through the second signal amplifier 61. At this time, the second signal amplifier 61 is turned on, and then the second signal amplifier 61 takes oil from the oil tank 2 through the Pp port, and the hydraulic oil flow in the LY feedback oil circuit increases, so that the pressure on both sides of the pressure compensation valve 52 between each winch control panel 5 remains uniform, and the response time is faster.

[0020] like Figure 4 As shown, in this embodiment, a first pressure reducing valve 85 and a fourth shuttle valve 86 are further provided in the tail winch control console 8, the input end of the first pressure reducing valve 85 is connected to the output end of the variable pump station 1, the output end of the first pressure reducing valve 85 is connected to the fourth shuttle valve 86, and the fourth shuttle valve 86 is connected to the LS feedback oil circuit.

[0021] like Figure 5 As shown, in this embodiment, the winch 4 is provided with a bidirectional hydraulic motor 41, which is connected to the input end of the reversing valve 51 in the winch control panel and the output end of the reversing valve 51. At the same time, the bidirectional hydraulic motor 41 is connected to the input end of the oil tank 2. A fifth shuttle valve 42, a first one-way valve 43, a second one-way valve 44 and a fourth relief valve 45 are connected between the bidirectional hydraulic motor 41 and the reversing valve. The fifth shuttle valve 42 is connected to the input end and the output end of the reversing valve 51 in the winch control panel 5. The first one-way valve 43, the second one-way valve 44 and the fourth overflow valve 45 are connected to the output end of the reversing valve in the winch operating console, and the first one-way valve 43, the second one-way valve 44 and the fourth overflow valve 45 are connected in parallel to the output end of the reversing valve in the winch operating console; the winch 4 also has a second pressure reducing valve 46 and a normally closed brake 47, the output end of the fifth shuttle valve 42 is connected to the input end of the second pressure reducing valve 46, and the output end of the second pressure reducing valve 46 is connected to the oil cylinder of the normally closed brake 47.

[0022] The winch 4 is braked by the normally closed brake 47. When the winch 4 needs to be driven, a part of the hydraulic oil output from the reversing valve 51 flows into the fifth shuttle valve 42, and then flows through the second pressure reducing valve 46 and is input into the normally closed brake 47, so that the normally closed brake 47 releases the brake on the winch 4, which has good reliability; when the reversing valve 51 is reset to the middle position, the hydraulic oil stops being input; the hydraulic oil flows back from the oil cylinder of the normally closed brake 47 to the reversing valve 51.

[0023] like Figure 1As shown, in this embodiment, a hydraulically controlled one-way valve 9 is connected between the variable pump station 1 and the winch control panel 5 to prevent the oil in the winch control panel 5 from flowing back into the variable pump station 1, and a water cooling system 11 is connected between the return oil port of the winch control panel 5 and the input end of the oil tank 2. When multiple winches 4 and multiple variable pump stations 1 work for a long time, the components will generate a large amount of heat, which will increase the temperature of the hydraulic oil. The hydraulic oil returns to the oil tank 2 through the return oil pipeline. If the hydraulic oil is not cooled, the heat generated by the components cannot be quickly dissipated, causing greater damage to the components; the winch 4 and the winch control panel 5 are connected to the signal return oil circuit T0, which is connected to the oil tank 2 through the signal return oil circuit T0, and the signal return oil circuit T0 is connected to the shuttle valve 53. Through the return oil circuit T0, the signal oil of the LS feedback oil circuit, the LX feedback oil circuit and the LY feedback oil circuit flows back to the oil tank 2.

[0024] In the above scheme, each winch control panel 5 is connected to an LS feedback oil circuit and an LX feedback oil circuit through a shuttle valve 53. By connecting the LS feedback oil circuit and the LX feedback oil circuit between adjacent winch control panels 5, the control signal oil of any winch control panel 5 can be fed back to the control end of the signal amplifier 3 through the LS feedback oil circuit, thereby shortening the execution time of the winch 4; in the head winch control panel 6, part of the signal oil in the LS feedback oil circuit flows into the LY feedback oil circuit through the spring chamber of the pressure compensation valve 52, and flows to the spring chambers of all pressure compensation valves 52 through the LY feedback oil circuits connected in parallel, so that the pressure of the spring chamber of each pressure compensation valve is consistent, so that the hydraulic oil will only flow to the winch 4 connected to the winch control panel 5 with the reversing valve 51 opened, thereby realizing the linkage control between multiple winches 4.

Claims

1. A multi-winch connection oil circuit, comprising a variable pump station (1), an oil tank (2), a signal amplifier (3), three or more winches (4) and three or more winch control consoles (5), wherein the input end of the variable pump station (1) is connected to the output end of the oil tank (2), the output end of the variable pump station (1) is connected to the input end of the signal amplifier (3), the output end of the variable pump station (1) is connected to the oil inlets of the plurality of winch control consoles (5), the oil outlets of the plurality of winch control consoles (5) are connected to the input end of the oil tank (2), and the winches (4) and the winch control consoles (5) are connected one-to-one, characterized in that: The winch control console (5) is provided with a reversing valve (51), a pressure compensating valve (52) and a shuttle valve (53). One side of the reversing valve (51) is connected to the output end of the variable pump station (1), the input end of the oil tank (2) and the output end of the pressure compensating valve (52), and the other side is connected to the input end of the pressure compensating valve (52) and the winch (4). The shuttle valve (53) is connected to the pressure compensating valve (52). The capstan control panel (5) is connected to a feedback oil circuit, which includes an LS feedback oil circuit, an LX feedback oil circuit, and a LY feedback oil circuit. The LS feedback oil circuits of adjacent capstan control panels (5) are connected to the LX feedback oil circuit, and the LY feedback oil circuits of all capstan control panels (5) are connected together. The LY feedback oil circuit is connected to the spring chamber of the pressure compensation valve (52), and the LS feedback oil circuit and the LX feedback oil circuit are connected to the shuttle valve (53).

2. The multi-winch connecting oil circuit according to claim 1, characterized in that: The winch control panel (5) comprises a head winch control panel (6), a middle winch control panel (7) and a tail winch control panel (8), and the head winch control panel (6), the middle winch control panel (7) and the tail winch control panel (8) are all connected to the winch (4).

3. The multi-winch connecting oil circuit according to claim 2, characterized in that: A second signal amplifier (61) is also provided in the head winch control console (6), the input end of the second signal amplifier (61) is connected to the variable pump station (1), and the pressure compensation valve (52) is connected to the control end of the second signal amplifier (61) via the LY feedback oil circuit.

4. The multi-winch connecting oil circuit according to claim 2, characterized in that: A first pressure reducing valve (85) and a fourth shuttle valve (86) are also provided in the tail winch control console (8). The input end of the first pressure reducing valve (85) is connected to the output end of the variable pump station (1), and the output end of the first pressure reducing valve (85) is connected to the fourth shuttle valve (86). At the same time, the fourth shuttle valve (86) is connected to the LS feedback oil circuit.

5. The multi-winch connecting oil circuit according to claim 1, characterized in that: The winch (4) is provided with a bidirectional hydraulic motor (41), which is connected to the input end of the reversing valve in the winch control panel and the output end of the reversing valve. At the same time, the bidirectional hydraulic motor (41) is connected to the input end of the oil tank (2). A fifth shuttle valve (42), a first one-way valve (43), a second one-way valve (44) and a fourth overflow valve (45) are connected between the bidirectional hydraulic motor (41) and the reversing valve. The fifth shuttle valve (42) is connected to the input end and the output end of the reversing valve in the winch control panel. The first one-way valve (4 3), the second one-way valve (44) and the fourth relief valve (45) are connected to the output end of the reversing valve in the winch operating console, and the first one-way valve (43), the second one-way valve (44) and the fourth relief valve (45) are connected in parallel to the output end of the reversing valve in the winch operating console; the winch (4) also has a second pressure reducing valve (46) and a normally closed brake (47), the output end of the fifth shuttle valve (42) is connected to the input end of the second pressure reducing valve (46), and the output end of the second pressure reducing valve (46) is connected to the oil cylinder of the normally closed brake (47).

6. The multi-winch connecting oil circuit according to claim 1, characterized in that: A hydraulically controlled one-way valve (9) is connected between the variable pump station (1) and the winch control console (5).

7. The multi-winch connecting oil circuit according to claim 1, characterized in that: A water cooling system (11) is connected between the oil return port of the winch control console (5) and the input end of the oil tank (2).

8. The multi-winch connecting oil circuit according to claim 2, characterized in that: The LS feedback oil circuit of the head winch control console (6) is connected to the control end of the signal amplifier (3).

9. The multi-winch connecting oil circuit according to claim 2, characterized in that: In the head winch control panel (6), the LS feedback oil circuit is connected to the pressure compensation valve (52), and in the tail winch control panel (8), a plug (10) is provided between the LS feedback oil circuit and the pressure compensation valve (52).

10. The multi-winch connecting oil circuit according to claim 1, characterized in that: The winch (4) and the winch control console (5) are connected to a signal oil return line T0, which is connected to the oil tank (2) through the signal oil return line T0, and the signal oil return line T0 is connected to the shuttle valve (53).

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