Double-layer drum winch facilitating heat dissipation of umbilical cable, and winch apparatus
Patent Information
- Authority / Receiving Office
- WO · WO
- Patent Type
- Applications
- Current Assignee / Owner
- CRRC SMD (SHANGHAI) LTD
- Filing Date
- 2025-04-09
- Publication Date
- 2026-07-23
AI Technical Summary
The umbilical cable in the existing winch has poor heat dissipation in the middle and lower layers, which leads to increased temperature and may cause thermal breakdown, affecting the safe operation of the underwater robot and causing economic losses.
Design a double-layer drum winch with the inner and outer drums axially separated. The inner drum rotates first to wind the cable, and when a certain number of layers are reached, the outer drum moves, overlaps, and locks, rotating synchronously. There is a heat dissipation gap between the outer and inner layers, and water sprayed from the spray pipe also enters the gap to improve heat dissipation efficiency.
This improved the winch's heat dissipation efficiency, ensuring the safety of the umbilical cable at different depths, preventing thermal breakdown, and enhancing the winch's working efficiency.
Smart Images
Figure CN2025088097_23072026_PF_FP_ABST
Abstract
Description
A double-layer drum winch and winch that facilitates heat dissipation of umbilical cables Technical Field
[0001] This invention belongs to the field of power equipment, specifically relating to a double-layer drum winch and winch that facilitates heat dissipation of umbilical cables. Background Technology
[0002] In recent years, due to the vigorous development of marine resources, the demand for underwater robots (ROVs) has been increasing. ROVs are primarily connected by an umbilical cable, which handles power transmission and communication control. With technological advancements, underwater robots are diving at increasingly greater depths; currently, the world's largest ROV has reached a working depth of approximately 11,000 meters. This has led to increasingly longer umbilical cables connecting the robots. During operation, the umbilical cable wound around the winch generates a large amount of Joule heat, causing its temperature to rise sharply and even exceed its maximum allowable operating temperature. In severe cases, thermal breakdown can occur, leading to umbilical cable failure and significant economic losses. Therefore, umbilical cable cooling devices are needed to prevent overheating. Currently, the main cooling device on the winch is a spray system, which cools the umbilical cable when it becomes too hot. However, the umbilical cable consists of multiple layers wound around the drum, and a winch that only sprays the surface cannot quickly dissipate heat from the middle and lower layers of the cable.
[0003] Secondly, when underwater robots operate in shallow water environments, a large number of umbilical cables remain entangled in the winch. At this time, heat dissipation of the umbilical cables is extremely important. Therefore, in order to ensure the safe operation of underwater robots and expand their working depth, there is an urgent need for an umbilical cable winch that facilitates heat dissipation of the umbilical cables. 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 that facilitates heat dissipation of umbilical cables, thereby solving the problem that heat dissipation is not convenient for the middle and lower layers of cables.
[0005] This invention provides a double-layer drum winch that facilitates heat dissipation in umbilical cables, comprising:
[0006] The frame has a rotating mechanism at one end and a clutch at the other end. The clutch is connected to an external driving rotating device. Spray pipes are installed on the frame.
[0007] The inner drum is connected to a rotating mechanism at one end and a lead screw is rotatably connected to a fixed axis at the other end. One end of the lead screw is connected to a clutch and rotatably connected to the frame body at a fixed axis.
[0008] An outer drum is movably sleeved on an inner drum and connected to a lead screw drive. An umbilical cable inlet channel is provided on one end of the outer drum near the rotating mechanism for the umbilical cable to enter the outer drum from the inner drum. There is a heat dissipation gap between the outer drum and the inner drum.
[0009] The locking mechanism is used to lock and fix the inner and outer rolls after they overlap.
[0010] Optionally, the rotating mechanism includes a fixed disk fixedly connected to the frame and a rotating disk rotatably connected to the fixed disk on a fixed axis. The rotating disk is connected to the inner drum in a transmission connection, and the fixed disk is used to fix an external drive motor.
[0011] Optionally, the rotating disk and the inner drum are connected by a spline.
[0012] Optionally, the fixed disk has a photoelectric slip ring fixing hole at its axis.
[0013] Optionally, the locking mechanism includes a slot formed on the rotating disk, a protrusion disposed at one end of the outer drum, and a latch inserted on the rotating disk. The slot and the protrusion cooperate to fix the outer drum 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 and baffles fixedly connected to both ends of the shaft, and the umbilical cable inlet channel includes an opening on the baffle near the rotating mechanism and an oblique elongated opening on the shaft.
[0015] Optionally, the inner roll has multiple heat dissipation holes.
[0016] Optionally, the outer roll is provided with a plurality of heat dissipation holes.
[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 including a drive rotation device, a drive motor and a double-layer drum winch, wherein the drive rotation device and the drive motor are respectively drivenly connected to a clutch and a rotation mechanism.
[0019] The beneficial effects of this invention are as follows: The double-layer drum winch provided by this invention has an inner drum and an outer drum separated axially. Initially, the rotating mechanism only drives the inner drum to rotate, so that the umbilical cable is only wound or laid on the inner drum. When the inner drum has wound a certain number of layers of cable, the screw rotates, driving the outer drum to move to one end until it overlaps with the inner drum. The umbilical cable enters the outer drum from the umbilical cable inlet 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, winding the umbilical cable onto the outer drum. The winding can be done in reverse. Because there is a heat dissipation gap between the outer drum and the inner drum, the heat dissipation efficiency can be improved. Furthermore, the water sprayed from the spray pipe not only sprays onto the outer drum but also enters the heat dissipation gap, further improving the heat dissipation efficiency and solving the problem of poor heat dissipation for the middle and lower layers of cables in the prior art. This improves the working efficiency of the winch. Attached Figure Description
[0020] Figure 1 is a structural schematic diagram of the double-layer drum winch of the present invention from one perspective;
[0021] Figure 2 is a schematic diagram of the structure of the double-layer drum winch of the present invention from a second perspective;
[0022] Figure 3 is a schematic diagram of the structure of the double-layer drum winch of the present invention when the inner drum and the outer drum overlap;
[0023] Figure 4 is a schematic diagram of the structure of the outer roll of the present invention.
[0024] In the diagram: 100, frame; 200, rotating mechanism; 210, fixed plate; 211, photoelectric slip ring fixing hole; 220, rotating plate; 221, slot; 222, spline; 223, latch; 300, clutch; 400, inner drum; 401, heat dissipation hole one; 500, outer drum; 510, shaft cylinder; 511, heat dissipation hole two; 520, baffle; 521, opening; 522, oblique long opening; 523, protrusion; 600, spray pipe; 700, lead screw. Detailed Implementation
[0025] As shown in Figures 1-4, the present invention provides a double-layer drum winch that facilitates heat dissipation of umbilical cables, comprising: a frame 100, an inner drum 400, an outer drum 500, and a locking mechanism; wherein, a rotating mechanism 200 is provided at one end of the frame 100, and a clutch 300 is provided at the other end, the clutch 300 being connected to an external driving rotating device, and a spray pipe 600 is provided on the frame 100; one end of the inner drum 400 is connected to the rotating mechanism 200, and the other end is rotatably connected to a lead screw 700 on a fixed axis, the lead screw... One end of the lever 700 is connected to the clutch 300 and rotates on the frame 100; the outer drum 500 is movably sleeved on the inner drum 400 and is connected to the lead screw 700 for transmission; the outer drum 500 has an umbilical cable inlet channel on one end near the rotating mechanism 200 for the umbilical cable to enter the outer drum 500 from the inner drum 400; there is a heat dissipation gap between the outer drum 500 and the inner drum 400; the locking mechanism is used to lock and fix the inner drum 400 and the outer drum 500 after they overlap.
[0026] Compared with the prior art, the double-layer drum winch provided by the present invention has an inner drum 400 and an outer drum 500 separated axially. Initially, the rotating mechanism 200 only drives the inner drum 400 to rotate, so that the umbilical cable is only wound or laid on the inner drum 400. When the inner drum 400 has wound a certain number of layers of cable, the lead screw 700 rotates, driving the outer drum 500 to move to one end until it overlaps with the inner drum 400. The umbilical cable enters the outer drum 500 from the umbilical cable inlet 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, winding the umbilical cable onto the outer drum 500. The operation can be reversed during cable laying. Since there is a heat dissipation gap between the outer drum 500 and the inner drum 400, the heat dissipation efficiency can be improved. In addition, the water sprayed by the spray pipe 600 can not only spray onto the outer drum 500 but also enter the heat dissipation gap, further improving the heat dissipation efficiency and solving the problem of poor heat dissipation of the middle and lower layer cables 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 on a fixed axis. The rotating disk 220 is connected to the inner drum 400 in a transmission manner, and the fixed disk 210 is used to fix the external drive motor.
[0028] In one embodiment, the rotating disk 220 and the inner drum 400 are connected by a spline 222. This not only ensures that the rotating disk 220 and the inner drum 400 operate synchronously, but also facilitates the assembly and disassembly of the rotating disk 220 and the inner drum 400. Of course, in some embodiments, the rotating disk 220 and the inner drum 400 can also be fixed by screws or welding.
[0029] In one embodiment, the fixed disk 210 has a photoelectric slip ring fixing hole 211 on its shaft. A photoelectric slip ring is fixed on the output shaft of an external drive 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 formed on the rotating disk 220, a protrusion 523 disposed at one end of the outer drum 500, and a latch 223 inserted into the rotating disk 220. The slot 221 and the protrusion 523 cooperate to fix the outer drum 500 and the rotating disk 220 circumferentially, and the latch 223 is used to fix the protrusion 523 in the slot 221. Specifically, the separation condition of the inner drum 400 and the outer drum 500, as shown in Figure 1, mainly occurs when the inner drum 400 is winding or laying cables. When the inner drum 400 is winding or laying cables, the outer drum 500 does not move, and the lead screw 700 is connected to the inner drum 400 through a bearing, so it does not affect the rotation of the lead screw 700. When the outer drum 500 needs to be used, the outer drum 500 is driven to move towards the rotating disk 220 by the rotation of the lead screw 700. At this time, the clutch 30 The drive rotating device and lead screw 700 are engaged and fixed to the rotating disk 220 via the slot 221 and the protrusion 523. The latch 223 is used to lock them to prevent the winch from shaking when rotating. When the inner drum 400 and the outer drum 500 overlap, as shown in Figure 3, after successful overlap, the clutch 300 separates the lead screw 700 from the drive rotating device. The lead screw 700 is in a free state, and the outer drum 500 and the inner drum 400 are driven to rotate by the rotating disk 220 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. The umbilical cable inlet channel includes an opening 521 on the baffle 520 near the rotating mechanism 200 and an oblique elongated 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, the inner roll 400 is provided with a plurality of heat dissipation holes 401, which facilitates the flow of spray water and improves heat dissipation efficiency.
[0033] In one embodiment, the outer drum 500 is provided with a plurality of heat dissipation holes 511, which facilitates the flow of spray water and partially flows to the inner drum 400, thereby further improving heat dissipation efficiency.
[0034] In one embodiment, the length of the inner drum 400 is not greater than the length of the outer drum 500, so that one end of the outer drum 500 can abut against the rotating disk 220, making it easier for the umbilical cable to be smoothly wound onto the outer drum 500.
[0035] The present invention provides a winch including a drive rotation device, a drive motor and a double-layer drum winch, wherein the drive rotation device and the drive motor are respectively drivenly connected to a clutch 300 and a rotation mechanism 200.
[0036] The working process of this invention is as follows: Assuming the ROV is designed for a water depth of 6000m, and the umbilical cable needs to be wound in 12 layers on the winch, when the ROV operates at the designed water depth of 6000m, since the umbilical cable is only fully wound on the winch before deployment, the double-layer drum winch can be used as a regular winch. For convenient deployment and retrieval, only the outer drum 500 can be used for cable winding. When the ROV operates at a water depth of 1000m, the umbilical cable winch needs to be stacked in 10 layers. When the stacking number is greater than 2 layers, the inner drum 400 can be used for cable winding and storage. When the ROV is operating, 5000m of umbilical cable is on the water surface. For convenient deployment and retrieval, the deployed 1000m of umbilical cable needs to be stored in the outer drum 500, and then half of the remaining 5000m of umbilical cable is stored in the outer drum 500 and the other half in the inner drum 400. At the same time, cable storage can be allocated according to the actual heat dissipation of the inner drum 400 and the outer drum 500.
[0037] Those skilled in the art should understand that the discussion of any of the above embodiments is merely exemplary and is not intended to imply that the scope of protection of this application is limited to these examples; within the framework of this application, the technical features of the above embodiments or different embodiments can also be combined, the steps can be implemented in any order, and there are many other variations of different aspects of one or more embodiments of this application as described above, which are not provided in detail for the sake of brevity.
[0038] One or more embodiments in this application are intended to cover all such substitutions, modifications, and variations that fall within the broad scope of this application. Therefore, any omissions, modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of one or more embodiments in this application should be included within the protection scope of this application.
Claims
1. A double-layer drum winch that facilitates heat dissipation of umbilical cables, characterized in that, include: The frame (100) has a rotating mechanism (200) at one end and a clutch (300) at the other end. The clutch (300) is connected to an external driving rotating device. The frame (100) is equipped with a spray pipe (600). The inner drum (400) is connected to the rotating mechanism (200) at one end and the other end is rotatably connected to the lead screw (700) on a fixed axis. One end of the lead screw (700) is connected to the clutch (300) and rotatably connected to the frame (100) on a fixed axis. An outer drum (500) is movably sleeved on an inner drum (400) and connected to a lead screw (700) for transmission. An umbilical cable inlet channel is provided on one end of the outer drum (500) near the rotating mechanism (200) for the umbilical cable to enter the outer drum (500) from the inner drum (400). There is a heat dissipation gap between the outer drum (500) and the inner drum (400). A locking mechanism is used to lock and fix the inner roll (400) and the outer roll (500) after they overlap.
2. The double-layer drum winch according to claim 1, characterized in that, 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) on a fixed axis. The rotating disk (220) is connected to the inner drum (400) in a transmission connection. The fixed disk (210) is used to fix the external drive motor.
3. The double-layer drum winch according to claim 2, characterized in that, The rotating disk (220) and the inner drum (400) are connected by a spline (222).
4. The double-layer drum winch according to claim 2, characterized in that, The fixed disk (210) has a photoelectric slip ring fixing hole (211) on its axis.
5. The double-layer drum winch according to claim 2, characterized in that, The locking mechanism includes a slot (221) on the rotating disk (220), a protrusion (523) at one end of the outer drum (500), and a latch (223) inserted into the rotating disk (220). The slot (221) and the protrusion (523) cooperate to fix the outer drum (500) and the rotating disk (220) circumferentially, and the latch (223) is used to fix the protrusion (523) in the slot (221).
6. The double-layer drum winch according to any one of claims 1-5, characterized in that, The outer drum (500) includes a shaft drum (510) and baffles (520) fixedly connected to both ends of the shaft drum (510). The umbilical cable inlet channel includes an opening (521) on the baffle (520) near the rotating mechanism (200) and an oblique elongated opening (522) on the shaft drum (510).
7. The double-layer drum winch according to any one of claims 1-5, characterized in that, The inner roll (400) has multiple heat dissipation holes (401).
8. The double-layer drum winch according to any one of claims 1-5, characterized in that, The outer roll (500) has multiple heat dissipation holes (511).
9. The double-layer drum winch according to any one of claims 1-5, characterized in that, The length of the inner roll (400) is not greater than the length of the outer roll (500).
10. A winch, characterized in that, It includes a drive rotation device, a drive motor, and a double-layer drum winch as described in any one of claims 1-9, wherein the drive rotation device and the drive motor are respectively driven connected to the clutch (300) and the rotation mechanism (200).