A multi-capstan linkage system

Abstract

A kind of multi-capstan linkage system, including variable pump station, oil tank, signal amplifier, more than two capstans and with more than two capstan control platform, the input of variable pump station is connected with the output of oil tank, the output of variable pump station is connected with the input of signal amplifier, the output of variable pump station is connected with the oil inlet of multiple capstan control platform, the oil outlet of multiple capstan control platform is connected with the input of oil tank, capstan is connected with capstan control platform one by one, capstan control platform is connected with LS feedback oil circuit, LX feedback oil circuit and LY feedback oil circuit, the LS feedback oil circuit of adjacent capstan control platform is connected with LX feedback oil circuit, LY feedback oil circuit of all capstan control platform is connected together, when the load of certain capstan is greater than other capstans, push the change-over valve connected with other capstans, increase the load of this capstan, hydraulic oil can be accurately delivered to the capstan, will not all flow into the capstan with more load, accurate control between multiple capstans is realized.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of hydraulic pump station oil supply, and particularly relates to a multi-capstan linkage system. BACKGROUND

[0002] The hydraulic capstan is a kind of equipment powered by hydraulic system, and its working principle is to convert pressure into mechanical energy through hydraulic oil circuit, so as to drive the capstan to rotate. When multiple hydraulic capstans need to work simultaneously, the coordinated work of multiple capstans can be realized through the connection of oil circuit, the work efficiency and rescue ability are improved, the centralized control and management of multiple capstans are realized by using the flow and pressure transmission of hydraulic oil; in actual application, the technology of multiple hydraulic capstan connection oil circuit is widely used in vehicle rescue, engineering construction, outdoor exploration and other fields, and is particularly important in occasions requiring a large amount of traction or multiple capstans working together. SUMMARY

[0003] The problem to be solved by the present application is the linkage control between multiple capstans.

[0004] To achieve the above-mentioned purpose, the technical scheme of the present application is as follows: a multi-capstan linkage system, comprising a variable pump station, an oil tank, a signal amplifier, two or more capstans and a capstan control panel, the input end of the variable pump station is connected with the output end of the oil tank, the output end of the variable pump station is connected with the input end of the signal amplifier, the output end of the variable pump station is connected with the oil inlet of the capstan control panel, the oil outlet of the capstan control panel is connected with the input port of the oil tank, the capstan is connected with the capstan control panel one by one, the capstan control panel is provided with a reversing valve, a pressure balance valve and a shuttle valve, one side of the reversing valve is connected with the output end of the variable pump station, the input end of the oil tank and the output end of the pressure compensation valve, the other side is connected with the input end of the pressure compensation valve and the capstan, and the shuttle valve is connected with the pressure compensation valve.

[0005] The capstan control panel is connected with a feedback oil circuit, the feedback oil circuit comprises LS feedback oil circuit, LX feedback oil circuit and LY feedback oil circuit, the LS feedback oil circuit of the adjacent capstan control panel is connected with the LX feedback oil circuit, the LY feedback oil circuits of all capstan control panels are connected together, the LY feedback oil circuit is connected with the spring cavity of the pressure compensation valve, and the LS feedback oil circuit and the LX feedback oil circuit are connected with the shuttle valve.

[0006] The scheme connects the oil inlet of the plurality of winch operating platforms with the output end of the variable pump station, connects the oil return port of the plurality of winch operating platforms with the input end of the oil tank, connects the plurality of winches with the winch operating platforms one by one, and sends the hydraulic oil to the winch operating platforms through the variable pump station, sends the hydraulic oil flowing through the winch operating platforms to the connected winches through the reversing valve in the winch operating platform, and returns to the oil tank; the LS feedback oil path and the LX feedback oil path are connected through the shuttle valve in each winch operating platform, the LS feedback oil path and the LX feedback oil path are connected between adjacent winch operating platforms, so that the control signal oil of any winch operating platform can be fed back to the control end of the signal amplifier through the LS feedback oil path, and the execution time of the winch is shortened; the spring cavities of each pressure compensation valve are consistent in pressure through the LY feedback oil path connected together, so that the opening degree of the reversing valve is determined to determine the amount of hydraulic oil flowing to the winch connected with the winch operating platform, and linkage control between the plurality of winches is realized. BRIEF DESCRIPTION OF DRAWINGS

[0007] Figure 1 The whole hydraulic system schematic diagram of the embodiment of the application is shown in the figure.

[0008] Figure 2 The hydraulic system schematic diagram of the head winch operating platform in the embodiment of the application is shown in the figure.

[0009] Figure 3 The schematic diagram of the reversing valve in the embodiment of the application is shown in the figure.

[0010] Figure 4 The hydraulic system schematic diagram of the tail winch operating platform in the embodiment of the application is shown in the figure.

[0011] Figure 5 The hydraulic system schematic diagram of the winch in the embodiment of the application is shown in the figure. DETAILED DESCRIPTION

[0012] The application will be further described in detail in combination with the drawings and specific embodiments.

[0013] As Figures 1 to 2As shown, a multi-winch linkage system 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 two 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, and the output end of the variable pump station 1 is connected to the input end of the signal amplifier 3. The output end of 1 is connected to the oil inlet of multiple winch control panels 5, the oil outlet of multiple winch control panels 5 is connected to the input port of oil tank 2, and the winch 4 is connected one-to-one with the winch control panel 5. The winch control panel 5 is characterized by being equipped with a reversing valve 51, a pressure compensation 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 compensation valve 52, and the other side is connected to the input end of the pressure compensation valve 52 and the winch 4. The shuttle valve 53 is connected to the pressure compensation 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 an LY feedback oil circuit. The LS feedback oil circuit and LX feedback oil circuit of adjacent winch control panels 5 are connected together. The LY feedback oil circuit 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. The LS feedback oil circuit and 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. The head winch control panel 6, the middle winch control panel 7, and the tail winch control panel 8 are all connected to a 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. The variable pump station 1 pumps hydraulic oil into the multiple winch control consoles 5. The user manually pushes the directional valve 51 in the winch control console 5 connected to the winch 4 that needs to be controlled. In this embodiment, the directional valve 51 is a three-position six-way manual directional valve 51. When the directional valve 51 moves in one direction, the hydraulic oil output from the variable pump station 1 flows into the directional valve 51 through port P. The hydraulic oil flows from port C of the directional valve 51 to the pressure compensation valve 52. After passing through the pressure compensation valve 52, part of the hydraulic oil flows from port D of the directional valve 51 to port A of the directional valve 51, and then flows into the winch 4 through port B2. Then it flows from port A2 to port B, and then flows out through port E of the directional valve 51 to the return port T to return to the oil tank 2, so that the winch 4 moves in one direction.

[0016] When the reversing valve 51 moves in the other direction, the hydraulic oil outputted by the variable pump station 1 flows into the reversing valve through the P port, the hydraulic oil flows from the G port of the reversing valve 51 to 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 through the pressure compensation valve 52, 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 to the oil return port T through the I port of the reversing valve 51 to flow back to the oil tank 2, so as to realize the movement of the winch 4 in the other direction.

[0017] In the above process, when the hydraulic oil flows to the reversing valve 51 through the pressure compensation valve 52, part of the hydraulic oil flows to the shuttle valve 53 and then flows into the LS feedback oil path, and since all the LS feedback oil paths on the winch operating platform 5 are connected together, no matter which winch operating platform 5 is pushed, the signal oil will be transmitted to the LS feedback oil path of the head winch operating platform 6 through the LS feedback oil path, and then flows to the control end of the signal amplifier 3, so that the signal amplifier 3 is turned on, and then the signal oil is inputted 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 path, and since the LY feedback oil paths are connected in parallel, the signal oil is inputted into the spring cavity of the pressure compensation valve 52 through the LY feedback oil path, so that the pressures of the spring cavities of each pressure compensation valve are consistent, so that the hydraulic oil flows to each winch operating platform 5 evenly, and the amount of hydraulic oil flowing to the winch 4 is controlled by the opening size of the reversing valve 51.

[0018] As shown in Figure 2 and Figure 4 In the head winch operating platform 6, the LS feedback oil path is connected with the pressure compensation valve 52, and in the middle winch operating platform 7 and the tail winch operating platform 8, the LS feedback oil path and the pressure compensation valve 52 are provided with plugs 10, so that the signal oil in the LS feedback oil path of the head winch operating platform 6 does not flow to the pressure compensation valve 52 when flowing to the LS feedback oil paths of the middle winch operating platform 7 and the tail winch operating platform 8, and the LS feedback oil path and the spring cavity of the pressure compensation valve 52 are not provided with the plug 10, and are in communication, so that part of the hydraulic oil flows to the LY feedback oil path through the spring cavity of the pressure compensation valve 52, that is, the signal oil in the LY feedback oil path can only flow out from the LY feedback oil path in the head winch operating platform 6, and then flows to the spring cavity of the pressure compensation valve 52 in other winch operating platforms 5, so that the pressures of the spring cavities of all the pressure compensation valves 52 are consistent.

[0019] As shown in Figure 2As shown, in the embodiment, the second signal amplifier 61 is further arranged in the head winch console 6, the input end of the second signal amplifier 61 is connected with the variable pump station 1, the pressure compensation valve 52 is connected with 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 with the LY feedback oil circuit; when the LY feedback oil circuit in the head winch console obtains the signal oil from the LS feedback oil circuit and then transmits the signal oil to the LY feedback oil circuit in the other winch console 5, the signal oil flows through the second signal amplifier 61, at this time, the second signal amplifier 61 is turned on, then the second signal amplifier 61 takes oil from the oil tank 2 through the Pp port, the hydraulic oil flow in the LY feedback oil circuit is increased, and the pressure on both sides of the pressure compensation valve 52 between the winch consoles 5 is kept uniform at a faster response time.

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

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

[0022] The winch 4 is braked by the normally closed brake 47, when it is needed to drive the winch 4 to act, 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 of the winch 4, and the reliability is good; when the reversing valve 51 is reset to the middle position, the hydraulic oil stops being input; the hydraulic oil flows back to the reversing valve 51 from the oil cylinder of the normally closed brake 47.

[0023] As shown, Figure 1As shown, in the embodiment, the variable pump station 1 is connected with the winch operating platform 5 through a hydraulic control one-way valve 9, so as to prevent the oil in the winch operating platform 5 from flowing back to the variable pump station 1, and the oil return port of the winch operating platform 5 is connected with the input end of the oil tank 2 through a water cooling system 11, so that when the plurality of winches 4 and the plurality of variable pump stations 1 work for a long time, a large amount of heat is generated by the elements, so that the temperature of the hydraulic oil is increased, the hydraulic oil returns to the oil tank 2 through the oil return pipeline, if the hydraulic oil is not cooled, the heat generated by the elements cannot be quickly dissipated, and the elements are damaged greatly; the winch 4 and the winch operating platform 5 are connected with a signal oil return path T0, the signal oil return path T0 is connected with the oil tank 2, the signal oil return path T0 is connected with the shuttle valve 53, and the signal oil return path T0 makes the signal oil of the LS feedback oil path, the LX feedback oil path and the LY feedback oil path flow back to the oil tank 2.

[0024] In the present application, the LS feedback oil path and the LX feedback oil path are connected with each other through the shuttle valve 53 in each winch operating platform 5, the LS feedback oil path and the LX feedback oil path are connected between the adjacent winch operating platforms 5, so that the control signal oil of any winch operating platform 5 can be fed back to the control end of the signal amplifier 3 through the LS feedback oil path, and the execution time of the winch 4 is shortened; part of the signal oil in the LS feedback oil path in the head winch operating platform 6 flows into the LY feedback oil path through the spring cavity of the pressure compensation valve 52, and flows to the spring cavities of all the pressure compensation valves 52 through the LY feedback oil path connected in parallel, so that the pressures of the spring cavities of each pressure compensation valve are consistent, so that the hydraulic oil only flows to the winch 4 connected with the winch operating platform 5 opened by the reversing valve 51, and the linkage control between the plurality of winches 4 is realized.

Claims

1. A multi-capstan linkage system comprising a variable pump station (1), an oil tank (2), a signal amplifier (3), three or more capstans (4) and three or more capstan control stations (5), the input end of the variable pump station (1) being connected to the output end of the oil tank (2), the output end of the variable pump station (1) being connected to the input end of the signal amplifier (3), the output end of the variable pump station (1) being connected to the oil inlet of the capstan control stations (5), the oil outlet of the capstan control stations (5) being connected to the input end of the oil tank (2), the capstans (4) being connected to the capstan control stations (5) one-to-one, characterized in that: The winch operating platform (5) is provided with a reversing valve (51), a pressure compensation valve (52) and a shuttle valve (53), one side of the reversing valve (51) is connected with the output end of the variable pump station (1), the input end of the oil tank (2) and the output end of the pressure compensation valve (52), the other side is connected with the input end of the pressure compensation valve (52) and the winch (4), the shuttle valve (53) is connected with the pressure compensation valve (52), and the variable pump station (1) is connected with the winch operating platform (5) through a hydraulic control one-way valve (9); The winch (4) and the winch operating platform (5) are connected with a signal return oil path T0, the signal return oil path T0 is connected with the oil tank (2), and the signal return oil path T0 is connected with the shuttle valve (53); The winch operating platform (5) is connected with a feedback oil path, the feedback oil path comprises an LS feedback oil path, an LX feedback oil path and an LY feedback oil path, the LS feedback oil path of adjacent winch operating platforms (5) is connected with the LX feedback oil path, the LY feedback oil paths of all the winch operating platforms (5) are connected together, the LY feedback oil path is connected with the spring cavity of the pressure compensation valve (52), and the LS feedback oil path and the LX feedback oil path are connected with the shuttle valve (53).

2. The multi-capstan linkage system of claim 1, wherein: The winch operating platform (5) comprises a head winch operating platform (6), a middle winch operating platform (7) and a tail winch operating platform (8), and the head winch operating platform (6), the middle winch operating platform (7) and the tail winch operating platform (8) are all connected with winches (4).

3. A multi-capstan linkage system according to claim 2, characterised in that: The head winch operating platform (6) is further provided with a second signal amplifier (61), the input end of the second signal amplifier (61) is connected with the variable pump station (1), and the pressure compensation valve (52) is connected with the control end of the second signal amplifier (61) through the LY feedback oil path.

4. The multi-capstan linkage system of claim 2, wherein: The tail winch operating platform (8) is further provided with a first pressure reducing valve (85) and a fourth shuttle valve (86), the input end of the first pressure reducing valve (85) is connected with the output end of the variable pump station (1), the output end of the first pressure reducing valve (85) is connected with the fourth shuttle valve (86), and the fourth shuttle valve (86) is connected with the LS feedback oil path.

5. The multi-capstan linkage system of claim 1, wherein: The winch (4) is provided with a bidirectional hydraulic motor (41), the bidirectional hydraulic motor (41) is connected with the input end of the reversing valve in the winch operating platform and the output end of the reversing valve, meanwhile, the bidirectional hydraulic motor (41) is connected with the input end of the oil tank (2), the bidirectional hydraulic motor (41) and the reversing valve are connected with a fifth shuttle valve (42), a first one-way valve (43), a second one-way valve (44) and a fourth overflow valve (45), the fifth shuttle valve (42) is connected with the input end and the output end of the reversing valve in the winch operating platform, the first one-way valve (43), the second one-way valve (44) and the fourth overflow valve (45) are connected with the output end of the reversing valve in the winch operating platform, and the first one-way valve (43), the second one-way valve (44) and the fourth overflow valve (45) are connected in parallel at the output end of the reversing valve in the winch operating platform; the winch (4) is further provided with a second pressure reducing valve (46) and a normally closed brake (47), the output end of the fifth shuttle valve (42) is connected with the input end of the second pressure reducing valve (46), and the output end of the second pressure reducing valve (46) is connected with the oil cylinder of the normally closed brake (47).

6. The multi-capstan linkage system of claim 1, wherein: The water cooling system (11) is connected between the oil return port of the winch console (5) and the input end of the oil tank (2).

7. The multi-capstan linkage system of claim 2, wherein: The LS feedback oil circuit of the head winch console (6) is connected with the control end of the signal amplifier (3).

8. The multi-capstan linkage system of claim 2, wherein: In the head winch console (6), the LS feedback oil circuit is connected with the pressure compensation valve (52), and in the tail winch console (8), the LS feedback oil circuit is connected with the pressure compensation valve (52), and a plug (10) is arranged between the LS feedback oil circuit and the pressure compensation valve (52).

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