A double-drum winch and winch that is beneficial to the heat dissipation of umbilical cable

Abstract

The present invention belongs to the field of power equipment, and specifically relates to a double-drum winch and winch that is conducive to the heat dissipation of an umbilical cable, including a frame, an inner drum, an outer drum and a locking mechanism; a rotating mechanism is arranged at one end of the frame, a clutch is arranged at the other end, the clutch is connected to an external driving rotating device, and a spray pipe is arranged on the frame; one end of the inner drum is connected to the rotating mechanism, and the other end is connected to a lead screw for fixed-axis rotation, one end of the lead screw is docked with the clutch and connected to the fixed-axis rotation of the frame; the outer drum is movably sleeved on the inner drum and screwed with the lead screw, and a heat dissipation gap is provided between the outer drum and the inner drum; the locking mechanism is used to lock and fix the inner drum and the outer drum after overlapping. Since there is a heat dissipation gap between the outer drum and the inner drum, the heat dissipation efficiency can be improved, and the water sprayed from the spray pipe can not only be sprayed to the outer drum but also enter the heat dissipation gap, further improving the heat dissipation efficiency.

Description

Technical Field

[0001] The invention belongs to the field of electric power equipment, and in particular relates to a double-layer drum winch and a winch which are beneficial to the heat dissipation of an umbilical cable. Background Art

[0002] In recent years, due to the vigorous development of marine resources, the demand for underwater operation robots (ROV) has been increasing. Underwater operation robots are mainly connected by an umbilical cable, which transmits power and controls communication. With the development of technology, the diving depth of underwater robots is getting deeper and deeper. At present, the maximum working depth of underwater robots (ROV) in the world has reached about 11,000 meters, which leads to the umbilical cable connecting the robot getting longer and longer. When it is working, the umbilical cable wrapped on the winch will generate a lot of Joule heat, causing the temperature of the umbilical cable to increase sharply or even exceed its maximum allowable working temperature. In severe cases, thermal breakdown may even occur, causing umbilical cable failure, resulting in serious economic losses. Therefore, it is necessary to set up an umbilical cable cooling device to prevent the cable from overheating. At present, the umbilical cable cooling device on the winch mainly adopts a spraying device. When the temperature of the umbilical cable is too high, spraying is used to cool it down. However, the umbilical cable is a multi-layer cable wrapped on a drum, and the winch that only sprays the surface cannot quickly dissipate the heat of the middle and lower cables.

[0003] Secondly, when the underwater robot works in a shallow water environment, there will be a large amount of umbilical cables still wrapped around the winch. At this time, the heat dissipation of the umbilical cable is extremely important. Therefore, in order to ensure the safe operation of the underwater robot and expand its working depth, an umbilical cable winch that is conducive to the heat dissipation of the umbilical cable is urgently needed. Summary of the invention

[0004] The technical problem to be solved by the present invention is to provide a double-layer drum winch and winch which are beneficial to the heat dissipation of the umbilical cable, thereby solving the problem that the middle and lower cables are not easy to dissipate heat.

[0005] The present invention provides a double-drum winch which is beneficial to the heat dissipation of an umbilical cable, comprising:

[0006] A frame body, one end of which is provided with a rotating mechanism, and the other end of which is provided with a clutch, wherein the clutch is connected to an external driving rotating device, and a spray pipe is provided on the frame body;

[0007] The inner winding drum has one end connected to the rotating mechanism and the other end connected to a lead screw for fixed axis rotation. One end of the lead screw is connected to the clutch and is connected to the frame for fixed axis rotation.

[0008] The outer drum is movably sleeved on the inner drum and connected to the lead screw transmission. An umbilical cable entrance channel is provided on one end of the outer drum close to the rotating mechanism for the umbilical cable to enter the outer drum from the inner drum. A heat dissipation gap is provided between the outer drum and the inner drum.

[0009] The locking mechanism is used to lock and fix the inner layer reel and the outer layer reel after they overlap.

[0010] Optionally, the rotating mechanism includes a fixed disk fixedly connected to the frame, a rotating disk rotatably connected to the fixed disk, the rotating disk is transmission-connected to the inner reel, and the fixed disk is used to fix an external driving motor.

[0011] Optionally, the rotating disk and the inner winding drum are matched through splines.

[0012] Optionally, a photoelectric slip ring fixing hole is opened at the axis of the fixing plate.

[0013] Optionally, the locking mechanism includes a slot opened on the rotating disk, a protrusion arranged at one end of the outer reel and a latch inserted on the rotating disk, the slot and the protrusion cooperate to fix the outer reel and the rotating disk circumferentially, and the latch is used to fix the protrusion in the slot.

[0014] Optionally, the outer drum includes a shaft cylinder and baffles fixedly connected to both ends of the shaft cylinder, and the umbilical cable entrance channel includes an opening on the baffle near one end of the rotating mechanism and an oblique long opening on the shaft cylinder.

[0015] Optionally, a plurality of heat dissipation holes are provided on the inner layer roll.

[0016] Optionally, a plurality of heat dissipation holes 2 are provided on the outer layer roll.

[0017] Optionally, the length of the inner roll is not greater than the length of the outer roll.

[0018] The present invention provides a winch comprising a driving rotating device, a driving motor and a double-drum winch. The driving rotating device and the driving motor are drivingly connected to a clutch and a rotating mechanism respectively.

[0019] The beneficial effect of the present invention is that the double-layer drum winch provided by the present invention has an inner drum and an outer drum separated in the axial direction. At the beginning, the rotating mechanism only drives the inner drum to rotate, so that the umbilical cable is only wound or arranged on the inner drum. When the inner drum is wound to a certain number of layers, the screw rotates to drive the outer drum to move to one end until it overlaps with the inner drum, and the umbilical cable enters the outer drum from the umbilical cable entrance channel. At the same time, the locking mechanism fixes the inner drum and the outer drum together. The rotating mechanism drives the inner drum and the outer drum to rotate synchronously, and the umbilical cable is wound on the outer drum. When arranging, the reverse operation can be performed. Since there is a heat dissipation interval between the outer drum and the inner drum, the heat dissipation efficiency can be improved, and the water sprayed from the spray pipe can not only be sprayed on the outer drum but also enter the heat dissipation interval, further improving the heat dissipation efficiency, and solving the problem that the middle and lower cables in the prior art are not convenient for heat dissipation. The working efficiency of the winch is improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a structural schematic diagram of the double-drum winch of the present invention from a first viewing angle;

[0021] Figure 2 It is a structural schematic diagram of the double-drum winch of the present invention from a second viewing angle;

[0022] Figure 3 It is a schematic structural diagram of the double-drum winch of the present invention when the inner drum and the outer drum overlap;

[0023] Figure 4 It is a schematic structural diagram of the outer layer reel of the present invention.

[0024] In the figure: 100, frame; 200, rotating mechanism; 210, fixed disk; 211, photoelectric slip ring fixing hole; 220, rotating disk; 221, slot; 222, spline; 223, latch; 300, clutch; 400, inner reel; 401, heat dissipation hole 1; 500, outer reel; 510, shaft cylinder; 511, heat dissipation hole 2; 520, baffle; 521, opening; 522, oblique long opening; 523, bump; 600, spray pipe; 700, lead screw. DETAILED DESCRIPTION

[0025] like Figure 1-4 As shown, the present invention provides a double-drum winch that is beneficial to the heat dissipation of the umbilical cable, comprising: a frame 100, an inner drum 400, an outer drum 500 and a locking mechanism; wherein, a rotating mechanism 200 is arranged at one end of the frame 100, and a clutch 300 is arranged at the other end, the clutch 300 is connected to an external driving rotating device, and a spray pipe 600 is arranged on the frame 100; one end of the inner drum 400 is connected to the rotating mechanism 200, and the other end is connected to a lead screw 700 for fixed axis rotation, and the lead screw 700 is connected to the outer driving rotating device. One end of 00 is docked with the clutch 300 and is connected to the frame 100 for fixed-axis rotation; the outer reel 500 is movably sleeved on the inner reel 400 and is transmission-connected with the lead screw 700, and an umbilical cable entrance channel is opened on the end of the outer reel 500 close to the rotating mechanism 200, which is used for the umbilical cable to enter the outer reel 500 from the inner reel 400, and a heat dissipation gap is provided between the outer reel 500 and the inner reel 400; the locking mechanism is used to lock and fix the inner reel 400 and the outer reel 500 after overlapping.

[0026] Compared with the prior art, the double-drum winch provided by the present invention has an inner drum 400 and an outer drum 500 separated in the axial direction. At the beginning, the rotating mechanism 200 only drives the inner drum 400 to rotate, so that the umbilical cable is only wound or arranged on the inner drum 400. When the inner drum 400 is wound to a certain number of layers, the lead screw 700 rotates to drive the outer drum 500 to move to one end until it overlaps with the inner drum 400, and the umbilical cable enters the outer drum 500 from the umbilical cable entrance channel. At the same time, the locking mechanism locks the inner drum 400. Fixed together with the outer drum 500, the rotating mechanism 200 drives the inner drum 400 and the outer drum 500 to rotate synchronously, and the umbilical cable is wound on the outer drum 500. The operation can be reversed when arranging. Since there is a heat dissipation gap between the outer drum 500 and the inner drum 400, the heat dissipation efficiency can be improved, and the water sprayed by the spray pipe 600 not only sprays to the outer drum 500 but also enters the heat dissipation gap, which further improves the heat dissipation efficiency and solves the problem that the middle and lower cables are not easy to dissipate heat in the prior art.

[0027] In one embodiment, the rotating mechanism 200 includes a fixed disk 210 fixedly connected to the frame 100, and a rotating disk 220 rotatably connected to the fixed disk 210. The rotating disk 220 is transmission-connected to the inner layer reel 400, and the fixed disk 210 is used to fix the external driving motor.

[0028] In one embodiment, the rotating disk 220 and the inner layer reel 400 cooperate with each other through a spline 222. This not only ensures that the rotating disk 220 and the inner layer reel 400 run synchronously, but also facilitates the disassembly and assembly of the rotating disk 220 and the inner layer reel 400. Of course, in some embodiments, the rotating disk 220 and the inner layer reel 400 can also be fixed by screws or welding.

[0029] In one embodiment, a photoelectric slip ring fixing hole 211 is formed at the axis of the fixing plate 210 . A photoelectric slip ring is fixed on the output shaft of the external driving motor, and the photoelectric slip ring is installed in the photoelectric slip ring fixing hole 211 .

[0030] In one embodiment, the locking mechanism includes a slot 221 provided on the rotating disk 220, a protrusion 523 provided at one end of the outer layer reel 500, and a latch 223 inserted on the rotating disk 220. The slot 221 and the protrusion 523 cooperate to fix the outer layer reel 500 and the rotating disk 220 in the circumferential direction, and the latch 223 is used to fix the protrusion 523 in the slot 221. Specifically, the inner layer reel 400 and the outer layer reel 500 are separated from each other, see Figure 1, mainly occurs when the inner drum 400 is winding or arranging the cable. When the inner drum 400 is winding or arranging the cable, the outer drum 500 does not move, and the lead screw 700 is connected to the inner drum 400 through a bearing, so it will not affect the rotation of the lead screw 700; when the outer drum 500 needs to be used, the outer drum 500 is driven by the rotation of the lead screw 700 to move toward the rotating disk 220. At this time, the clutch 300 engages the driving rotating device and the lead screw 700, and is fixed to the rotating disk 220 through the card slot 221 and the protrusion 523, and is locked with the latch 223 to prevent the winch from shaking when rotating. When the inner drum 400 overlaps with the outer drum 500, see Figure 3 After the overlap is successful, the clutch 300 separates the lead screw 700 from the driving rotation device, the lead screw 700 is in a free state, and the outer layer reel 500 and the inner layer reel 400 are driven by the rotating disk 220 to rotate at the same speed.

[0031] In one embodiment, the outer drum 500 includes a shaft drum 510 and baffles 520 fixedly connected to both ends of the shaft drum 510, and the umbilical cable entrance channel includes an opening 521 on the baffle 520 near one end of the rotating mechanism 200 and an oblique long opening 522 on the shaft drum 510, which can guide the umbilical cable to be wound on the outer drum 500.

[0032] In one embodiment, a plurality of heat dissipation holes 401 are provided on the inner layer reel 400, which are conducive to the flow of spray water and improve the heat dissipation efficiency.

[0033] In one embodiment, a plurality of heat dissipation holes 511 are provided on the outer layer reel 500, which facilitate the flow of the spray water and partially flow to the inner layer reel 400, further improving the heat dissipation efficiency.

[0034] In one embodiment, the length of the inner drum 400 is not greater than that of the outer drum 500 , so that one end of the outer drum 500 can abut against the rotating disk 220 , facilitating smooth winding of the umbilical cable on the outer drum 500 .

[0035] The present invention provides a winch including a driving rotating device, a driving motor and a double-drum winch. The driving rotating device and the driving motor are drivingly connected to a clutch 300 and a rotating mechanism 200 respectively.

[0036] Working process of the present invention: Assuming that the designed water depth of ROV is 6000m, the umbilical cable needs to be wound on the winch in 12 layers. When ROV works at the designed water depth of 6000m, since the umbilical cable is completely wound on the winch only before being laid, the double-layer drum winch can be used as an ordinary winch. For the convenience of laying and recovering, only the outer drum 500 can be used for cable winding. When ROV works at a water depth of 1000m, the umbilical cable winch needs to be stacked in 10 layers. When the number of stacked layers is greater than 2 layers, the inner drum 400 can be used for cable winding and storage. When ROV is working, 5000m of umbilical cable is located on the water surface. For the convenience of laying and recovering, the laid 1000m umbilical cable needs to be stored in the outer drum 500, and then 1 / 2 of the remaining 5000m umbilical cable is stored in the outer drum 500, and 1 / 2 is stored in the inner drum 400. At the same time, cable storage allocation can also be performed according to the actual heat dissipation conditions of the inner layer drum 400 and the outer layer drum 500.

[0037] A person skilled in the art should understand that the discussion of any of the above embodiments is merely illustrative and is not intended to imply that the scope of protection of the present application is limited to these examples. In line with the concept of the present application, the technical features in the above embodiments or different embodiments may be combined, the steps may be implemented in any order, and there are many other variations of different aspects of one or more embodiments of the present application as described above, which are not provided in detail for the sake of simplicity.

[0038] One or more embodiments of the present application are intended to cover all such substitutions, modifications and variations that fall within the broad scope of the present application. Therefore, any omissions, modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of one or more embodiments of the present application should be included in the protection scope of the present application.

Claims

1. A double-drum winch that is beneficial to the heat dissipation of the umbilical cable, characterized in that: include: A frame body (100) is provided with a rotating mechanism (200) at one end and a clutch (300) at the other end, wherein the clutch (300) is connected to an external driving rotating device, and a spray pipe (600) is provided on the frame body (100); An inner layer reel (400) has one end connected to the rotating mechanism (200) and the other end connected to a lead screw (700) in a fixed-axis rotational manner; one end of the lead screw (700) is butted against the clutch (300) and is connected to the frame (100) in a fixed-axis rotational manner; An outer drum (500) is movably sleeved on the inner drum (400) and is drivingly connected to the lead screw (700); an umbilical cable entrance channel is provided on one end of the outer drum (500) close to the rotating mechanism (200) for the umbilical cable to enter the outer drum (500) from the inner drum (400); and a heat dissipation gap is provided between the outer drum (500) and the inner drum (400); The locking mechanism is used to lock and fix the inner layer reel (400) and the outer layer reel (500) after they overlap.

2. The double-drum winch according to claim 1, characterized in that: The rotating mechanism (200) comprises a fixed disk (210) fixedly connected to the frame (100), and a rotating disk (220) rotatably connected to the fixed disk (210); the rotating disk (220) is drivingly connected to the inner layer reel (400); and the fixed disk (210) is used to fix an external driving motor.

3. The double-drum winch according to claim 2, characterized in that: The rotating disk (220) and the inner layer reel (400) are matched via a spline (222).

4. The double-drum winch according to claim 2, characterized in that: A photoelectric slip ring fixing hole (211) is provided at the axis of the fixing plate (210).

5. The double-drum winch according to claim 2, characterized in that: The locking mechanism comprises a slot (221) provided on the rotating disk (220), a protrusion (523) provided at one end of the outer reel (500), and a latch (223) inserted on the rotating disk (220); the slot (221) and the protrusion (523) cooperate to fix the outer reel (500) and the rotating disk (220) in a circumferential direction; and the latch (223) is used to fix the protrusion (523) in the slot (221).

6. The double-drum winch according to any one of claims 1 to 5, characterized in that: The outer layer drum (500) comprises a shaft cylinder (510) and baffles (520) fixedly connected to both ends of the shaft cylinder (510), and the umbilical cable entrance channel comprises an opening (521) opened on the baffle (520) at one end close to the rotating mechanism (200) and an oblique long opening (522) opened on the shaft cylinder (510).

7. The double-drum winch according to any one of claims 1 to 5, characterized in that: The inner layer reel (400) is provided with a plurality of heat dissipation holes 1 (401).

8. The double-drum winch according to any one of claims 1 to 5, characterized in that: The outer layer reel (500) is provided with a plurality of heat dissipation holes (511).

9. The double-drum winch according to any one of claims 1 to 5, characterized in that: The length of the inner layer reel (400) is no greater than the length of the outer layer reel (500).

10. A winch, characterized in that: It comprises a driving rotating device, a driving motor and the double-drum winch according to any one of claims 1 to 9, wherein the driving rotating device and the driving motor are drivingly connected to the clutch (300) and the rotating mechanism (200) respectively.

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