Winch hydraulic system for high-speed cable laying and cable laying method

Abstract

According to the technical scheme, the winch hydraulic system for high-speed cable unwinding is characterized by comprising a winding drum, and the winding drum is used for conducting unwinding and winding operation on a cable; the hydraulic motor is arranged to be an inner five-star hydraulic motor, and the hydraulic motor is provided with two liquid inlets and outlets; the oil tank is used for supplying oil to the hydraulic motor; the electromagnetic proportioning pump is used for controlling the flow direction and the flow rate of oil entering the hydraulic motor during cable winding and unwinding; the number of the one-way valves is two, the two one-way valves are arranged corresponding to the two liquid inlets and outlets respectively, and the two one-way valves are used for communicating the two liquid inlets and outlets with the oil tank when the winch freely releases the cable. And through the arrangement of the electromagnetic proportioning pump and the one-way valve, the hydraulic motor can be in a vacuum free wheel working condition during high-speed cable laying, and free high-speed cable laying of the cable is achieved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of seabed exploration, and more particularly to a winch hydraulic system for high-speed cable paying-out and a cable paying-out method. BACKGROUND

[0002] In the prior art, there are mainly two methods to realize vertical profile observation, one is through sea-based or underwater marine observation, and the other is to use a ship-borne sensor to measure the vertical profile of marine elements; the first method can only perform fixed-point observation, and the second method is to use a deck winch to pull the observation equipment up and down along the water body to collect observation vertical profile element data in real time. This method has a unique advantage in rapid marine element collection compared to the first method, but it needs to stop the ship for each profile element data collection and observation, and cannot continuously collect and observe different profile element data. To complete the measurement of all profiles in a specific sea area, a large amount of manpower, material resources and time are needed, and the measurement cost is high. SUMMARY

[0003] In view of the deficiencies in the prior art, the purpose of the present application is to provide a winch hydraulic system for high-speed cable paying-out and a cable paying-out method, which can make the hydraulic motor in a vacuum freewheeling condition during high-speed cable paying-out by setting an electromagnetic proportional pump and a check valve, and realize free high-speed cable paying-out.

[0004] To achieve the above purpose, the present application provides the following technical scheme: a winch hydraulic system for high-speed cable paying-out, comprising a drum, the drum is used for paying-out and winding the cable;

[0005] a hydraulic motor, the hydraulic motor is set as an internal five-star hydraulic motor, the hydraulic motor is provided with two inlet and outlet ports;

[0006] an oil tank, the oil tank is used for supplying oil to the hydraulic motor;

[0007] an electromagnetic proportional pump, the electromagnetic proportional pump is used for controlling the flow direction and flow rate of the oil entering the hydraulic motor during cable paying-out and winding;

[0008] and a check valve, the check valve is provided with two check valves, and the two check valves correspond to the two inlet and outlet ports respectively, the two check valves are used for connecting the two inlet and outlet ports with the oil tank during free cable paying-out of the winch.

[0009] The present application is further provided as follows: further comprising a two-position six-way valve, the two-position six-way valve is used for controlling the communication mode of the inlet and outlet ports of the hydraulic motor with the check valve and the electromagnetic proportional pump during winding, paying-out and free paying-out.

[0010] The present invention is further configured to include a belt brake, which is disposed at the drum for braking the drum.

[0011] The present invention is further configured to include a brake solenoid valve, which is connected to the band brake to control the band brake to perform and stop braking actions.

[0012] The invention is further configured to include an operating handle, which is used to control the flow direction and flow rate of hydraulic oil supplied by the electromagnetic proportional pump to the hydraulic motor according to its own swing direction and swing angle.

[0013] The present invention is further configured to include a return oil pipeline, one end of which is connected to the oil tank and the other end of which is connected to two one-way valves.

[0014] The present invention is further configured to include a first connecting pipe and a second connecting pipe, one end of the first connecting pipe and the second connecting pipe being connected to a two-position six-way valve, and the other end being connected to an electromagnetic proportional pump.

[0015] The present invention is further configured to include a hot oil release valve, wherein the hot oil release valve is connected to a first connecting pipeline and a second connecting pipeline and is connected to a return oil pipeline through a release pipeline;

[0016] And a cooler, which is connected to the return oil line for cooling the hot oil released by the hot oil release valve.

[0017] The present invention is further configured to include a low-temperature oil tank, wherein the low-temperature oil tank is connected to the return oil pipeline via a pipeline to store the oil cooled by the cooler;

[0018] A suction filter is installed at the oil outlet of the low-temperature oil tank;

[0019] And an auxiliary pump, which is used to replenish the electromagnetic proportional pump with oil filtered by the suction filter from the low-temperature oil tank.

[0020] The present invention is further configured to include a fine filter, which is used to finely filter the oil supplied by the auxiliary pump to the electromagnetic proportional pump.

[0021] In summary, the present invention has the following advantages over the prior art: the present invention, through the setting of electromagnetic proportional pump and one-way valve, enables the hydraulic motor to be in vacuum free wheel condition during high-speed cable laying, thereby realizing free and high-speed cable laying. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the overall structure of an embodiment.

[0023] In the figure: 1, electromagnetic proportional pump; 2, fine filter; 3, auxiliary pump; 5, suction filter; 6, hot oil release valve; 7, cooler; 8, check valve; 10, two-position six-way valve; 11, brake solenoid valve; 12, band brake; 13, winding drum. DETAILED DESCRIPTION

[0024] In order to make the person skilled in the art better understand the technical solutions of the present application, the technical solutions of the present application will be described clearly and completely below in combination with the drawings of the present application. Based on the embodiments in the present application, other similar embodiments obtained by the person skilled in the art without making creative efforts shall belong to the protection scope of the present application. In addition, the direction words mentioned in the following embodiments, such as "up", "down", "left", "right", etc. are only the directions of the drawings, therefore, the direction words used are used for illustration but not for limiting the present application.

[0025] The present application will be further described below in combination with the drawings and preferred embodiments.

[0026] Embodiment: A high-speed cable paying-off winch hydraulic system, comprising a winding drum 13, a hydraulic motor, an oil tank, an electromagnetic proportional pump 1 and check valves 8, the winding drum 13 is used for paying-off and winding operation of the cable; the hydraulic motor is set as an internal five-star hydraulic motor, the hydraulic motor is provided with two inlet and outlet ports; the oil tank is used for oil supply for the hydraulic motor; the electromagnetic proportional pump 1 is used for controlling the flow direction and flow rate of the oil into the hydraulic motor when paying-off and winding the cable; the check valves 8 are provided with two and the two check valves 8 correspond to the two inlet and outlet ports respectively, the two check valves 8 are used for connecting the two inlet and outlet ports with the oil tank when the winch is freely paying-off the cable.

[0027] When paying-off and winding the cable, the direction of the oil into the hydraulic motor is controlled by the electromagnetic proportional pump 1, that is, the oil suction and discharge direction of the hydraulic motor is changed, thereby realizing the switching of the control of the cable winding and paying-off function. When fast paying-off the cable is needed, the two inlet and outlet ports of the hydraulic motor are respectively connected with the oil tank through the check valves 8, that is, the oil is discharged to the oil tank through the check valves 8. Since the winding drum 13 is directly driven by the hydraulic motor, the hydraulic motor is in the vacuum free wheel state at this time, the winding drum 13 has small blocking torque at this time, and the free paying-off of the cable is realized under the action of the cable load tension.

[0028] Specifically, the embodiment further comprises a two-position six-way valve 10, which is used for controlling the connection mode of the inlet and outlet ports of the hydraulic motor with the check valves 8 and the electromagnetic proportional pump 1 when winding, paying-off and freely paying-off the cable.

[0029] Through the setting of the two-position six-way valve 10, the communication mode of the inlet and outlet of the hydraulic motor with the one-way valve 8 and the electromagnetic proportional pump 1 in the winding, unwinding and free cable releasing states can be met, and the number of hydraulic element settings can be reduced, so that the hydraulic system is simple and reliable, and the failure rate is low.

[0030] Specifically, the embodiment further comprises a band brake 12 arranged at the winding drum 13 for brake operation of the winding drum 13.

[0031] Specifically, the embodiment further comprises a brake solenoid valve 11 connected with the band brake 12 for controlling the band brake 12 to execute and stop brake action.

[0032] Specifically, the embodiment further comprises an operation handle for controlling the flow direction and flow rate of the hydraulic oil into the hydraulic motor of the electromagnetic proportional pump 1 according to the direction and angle of swing of the operation handle.

[0033] Specifically, the embodiment further comprises an oil return pipeline, one end of which is in communication with the oil tank, and the other end is in communication with the two one-way valves 8.

[0034] Specifically, the embodiment further comprises a first communication pipeline and a second communication pipeline, one end of each of the first communication pipeline and the second communication pipeline is in communication with the two-position six-way valve 10, and the other end is in communication with the electromagnetic proportional pump 1.

[0035] Specifically, the embodiment further comprises a hot oil release valve 6 and a cooler 7, the hot oil release valve 6 is in communication with the first communication pipeline and the second communication pipeline and is in communication with the oil return pipeline through a release pipeline; the cooler 7 is arranged on the oil return pipeline for cooling the hot oil released by the hot oil release valve 6.

[0036] Specifically, the embodiment further comprises a low-temperature oil tank, a suction filter 5 and an auxiliary pump 3, the low-temperature oil tank is connected with the oil return pipeline through a pipeline for storing the oil cooled by the cooler 7; the suction filter 5 is arranged at the oil outlet end of the low-temperature oil tank; the auxiliary pump 3 is used to supplement the oil filtered by the suction filter 5 into the electromagnetic proportional pump 1 from the low-temperature oil tank.

[0037] Specifically, the embodiment further comprises a fine filter 2 for fine filtering the oil supplemented by the auxiliary pump 3 into the electromagnetic proportional pump 1.

[0038] Embodiment two: a high-speed cable releasing method of a winch hydraulic system, when the cable is being collected or released, the direction of the oil into the hydraulic motor is controlled by the electromagnetic proportional pump 1 according to the direction of the handle rotation and the flow of the oil into the hydraulic motor is controlled by the electromagnetic proportional pump 1 according to the amplitude of the handle rotation through the switching of the two-position six-way valve 10, thus controlling the cable collecting and releasing operation and being able to control the speed of the cable collecting and releasing.

[0039] When the brake is needed, the brake solenoid valve 11 is powered, the band brake 12 is engaged, and the brake operation of the drum 13 is realized.

[0040] When the high-speed cable releasing is needed, the two-position six-way valve 10 is powered, the inlet and outlet of the hydraulic motor are communicated with the oil tank through the two one-way valves 8, the hydraulic motor reaches the vacuum freewheeling control, thus realizing the free high-speed cable releasing under the driving of the self-tension of the cable, so that the towed body on the cable can descend at the speed close to the free fall, and the high-speed cable releasing is realized.

[0041] The above is only the preferred embodiment of the present application, the protection scope of the present application is not limited to the above embodiment, any technical solution belonging to the idea of the present application is within the protection scope of the present application. It should be pointed out that, for the ordinary skilled in the art, some improvements and decorations without departing from the principle of the present application are also considered as the protection scope of the present application.

Claims

1. A high-speed cable laying winch hydraulic system, characterized in that: Includes a drum (13) for unwinding and rewinding the cable; A hydraulic motor, wherein the hydraulic motor is configured as an internal five-star hydraulic motor, and the hydraulic motor is provided with two inlet and outlet ports; An oil tank, which supplies oil to the hydraulic motor; An electromagnetic proportional pump (1) is used to control the direction and flow rate of oil entering the hydraulic motor during cable winding and unwinding. And a one-way valve (8), wherein there are two one-way valves (8) and the two one-way valves (8) are respectively set to the two inlet and outlet ports. The two one-way valves (8) are used to connect the two inlet and outlet ports to the oil tank when the winch is freely releasing the cable.

2. The hydraulic system for a high-speed cable laying winch according to claim 1, characterized in that: It also includes a two-position six-way valve (10), which is used to control the connection between the inlet and outlet of the hydraulic motor and the check valve (8) and the electromagnetic proportional pump (1) in the winding, unwinding and free-winding states.

3. The high-speed cable laying winch hydraulic system according to claim 2, characterized in that: It also includes a band brake (12) which is disposed at the drum (13) for braking the drum (13).

4. The high-speed cable laying winch hydraulic system according to claim 3, characterized in that: It also includes a brake solenoid valve (11), which is connected to the band brake (12) for controlling the band brake (12) to perform and stop braking actions.

5. The high-speed cable laying winch hydraulic system according to claim 4, characterized in that: It also includes an operating handle, which is used to control the flow direction and flow rate of hydraulic oil supplied by the electromagnetic proportional pump (1) to the hydraulic motor according to its own swing direction and swing angle.

6. The high-speed cable laying winch hydraulic system according to claim 5, characterized in that: It also includes a return oil pipeline, one end of which is connected to the oil tank and the other end is connected to two one-way valves (8).

7. The winch hydraulic system and cable-laying method for high-speed cable laying according to claim 6, characterized in that: It also includes a first connecting pipe and a second connecting pipe, one end of which is connected to a two-position six-way valve (10), and the other end is connected to an electromagnetic proportional pump (1).

8. The high-speed cable laying winch hydraulic system according to claim 7, characterized in that: It also includes a hot oil release valve (6), which is connected to the first connecting pipeline and the second connecting pipeline and is connected to the return oil pipeline through the release pipeline; And a cooler (7), which is connected to the return oil line for cooling the hot oil released by the hot oil release valve (6).

9. The hydraulic system for a high-speed cable laying winch according to claim 8, characterized in that: It also includes a low-temperature oil tank, which is connected to the return oil line via a pipeline to store the oil cooled by the cooler (7); A suction filter (5) is provided at the oil outlet of the low-temperature oil tank; And an auxiliary pump (3), which is used to replenish the oil filtered by the suction filter (5) from the low temperature oil tank into the electromagnetic proportional pump (1).

10. The high-speed cable laying winch hydraulic system according to claim 9, characterized in that: It also includes a fine filter (2), which is used to fine filter the oil supplied by the auxiliary pump (3) to the electromagnetic proportional pump (1).

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