Cable winding and unwinding device and cable winding and unwinding system

Abstract

The utility model discloses a cable winding and unwinding device, and belongs to the technical field of ocean exploration equipment. A passive compensation hydraulic cylinder is arranged between a cross beam and a hoisting point pulley in the mooring rope winding and unwinding device and connected with an energy accumulator, so that when the mooring rope winding and unwinding device is in a working state on a ship body, the ship body is subjected to the action of factors such as wind, waves and flow on the sea surface to ascend, the ship body has large inertia, and the mooring rope winding and unwinding device can be used for winding and unwinding the mooring rope. The exploration equipment cannot immediately rise along with the cable, the tension of the cable is increased to drive the hoisting point pulley connected with the hydraulic telescopic rod to move in the direction away from the passive compensation hydraulic cylinder, hydraulic oil in the hydraulic cylinder flows to the energy accumulator, and the passive compensation hydraulic cylinder and the energy accumulator are equivalent to a compression spring; and the generated resilience force can compensate the impact force generated by the hoisting point pulley, so that the effect of compensating the rising motion of the ship body is achieved, the undesirable phenomenon that the A frame main body is subjected to the impact load is effectively avoided, and the normal operation of the winding and unwinding system integrated with the cable winding and unwinding device is ensured.

Description

Technical Field

[0001] The present application relates to the technical field of marine exploration equipment, and in particular to a cable retraction and deployment device and a retraction and deployment system. Background Art

[0002] In ship lifting equipment, the cable retraction device is an important equipment in the retraction system. It is installed on the hull and can perform lifting at different angles. It has the characteristics of large lifting capacity and wide adaptability.

[0003] Typically, a cable retraction device deploys and recovers exploration equipment (e.g., ROV) by cooperating with a winch in the retraction system. However, since the ship's hull is susceptible to the effects of wind, waves, currents, and other factors on the sea surface, the A-frame in the cable retraction device is extremely susceptible to impact, affecting the safety of the deployment and recovery of the exploration equipment. Utility Model Content

[0004] The present invention provides a cable retraction device and system. This solves the problem in the prior art where cable retraction devices are subject to impact, affecting the safety of deploying and recovering exploration equipment. The technical solution is as follows:

[0005] In one aspect, a cable retracting and releasing device is provided, the cable retracting and releasing device comprising:

[0006] A-frame body, passive compensation hydraulic cylinder, accumulator and lifting point pulley;

[0007] The A-frame body includes: a crossbeam, and two support frames fixedly connected to the two ends of the crossbeam, respectively, and the support frames are used to be fixed on the hull;

[0008] The passive compensation hydraulic cylinder is distributed in the area between the two support frames, the passive compensation hydraulic cylinder has a hydraulic telescopic rod, and the bottom of the passive compensation hydraulic cylinder is hinged to the central area of the crossbeam;

[0009] The accumulator is mounted on the A-frame body and connected to the passive compensation hydraulic cylinder;

[0010] The top of the suspension point pulley is hinged to the end of the hydraulic telescopic rod, and the suspension point pulley is used for threading and winding the cable.

[0011] Optionally, the passive compensation hydraulic cylinder has an oil cylinder cavity that carries the hydraulic telescopic rod, the oil cylinder cavity includes a rod cavity and a rodless cavity, and the rod cavity is connected to the accumulator.

[0012] Optionally, the passive compensation hydraulic cylinder has an oil port connected to the rod chamber; the cable retraction and release device also includes: a connecting hose, one end of the connecting hose is connected to the oil port, and the other end of the connecting hose is connected to the accumulator.

[0013] Optionally, there are two oil ports, and the two oil ports are respectively located on both sides of the hydraulic telescopic rod; there are two connecting hoses, and the two connecting hoses correspond one-to-one to the two oil ports respectively.

[0014] Optionally, the connecting hose includes: a hose body and a connecting elbow, one end of the hose body is connected to the accumulator, and the other end is connected to the connecting elbow, and the end of the connecting elbow facing away from the hose body is connected to the passive compensation hydraulic cylinder.

[0015] Optionally, the bottom of the passive compensation hydraulic cylinder has a through hole communicating with the rodless cavity, and the rodless cavity is a vacuum cavity;

[0016] The cable retracting and releasing device includes a blocking piece fixed at the through hole.

[0017] Optionally, the suspension point pulley includes: a pulley body and a pulley bracket, the pulley body is hinged to the pulley bracket, the pulley bracket has a first connecting hole; the end of the hydraulic telescopic rod has a second connecting hole connected to the first connecting hole;

[0018] The cable retracting and releasing device further includes: a screw and a fastening nut, wherein one end of the screw passes through the first connecting hole and the second connecting hole and is threadedly connected to the fastening nut.

[0019] In another aspect, a retractable system is provided, comprising:

[0020] A winch, a cable and a cable retracting device, wherein the winch is mounted on a support frame in the cable retracting device, a portion of the cable is wound around the winch, and a portion of the cable extending from the winch is wound around a suspension point pulley in the cable retracting device, and the cable retracting device is any one of the cable retracting devices given above.

[0021] The beneficial effects of the technical solutions provided in the embodiments of the present application include at least:

[0022] A cable retraction and deployment device may include: an A-frame body, a passive compensating hydraulic cylinder, an accumulator, and a lifting point pulley. A passive compensating hydraulic cylinder is disposed between the crossbeam and the lifting point pulley in the cable retraction and deployment device, and is connected to the accumulator. When the cable retraction and deployment device is in operation on a vessel, and the vessel is subjected to upward movement due to wind, waves, currents, and other factors on the sea surface, the vessel has significant inertia, and the exploration equipment cannot immediately ascend with it. Increased cable tension drives the lifting point pulley connected to the hydraulic telescopic rod away from the passive compensating hydraulic cylinder. Hydraulic oil in the passive compensating hydraulic cylinder flows toward the accumulator. The passive compensating hydraulic cylinder and accumulator act as compression springs, generating a rebound force that compensates for the impact force generated by the lifting point pulley, thereby compensating for the upward movement of the vessel. This effectively prevents the A-frame body from being subjected to adverse impact loads and ensures the normal operation of the retraction and deployment system integrated with the cable retraction and deployment device. It should be noted that hydraulic oil in the accumulator can also flow into the passive compensating hydraulic cylinder, causing the hydraulic telescopic rod to recover its stroke. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.

[0024] Figure 1 This is a structural diagram of a cable retracting and releasing device provided in an embodiment of the present application;

[0025] Figure 2 yes Figure 1 A schematic diagram of a portion of the structure of the cable retracting and releasing device shown in FIG.

[0026] Figure 3 This is a schematic diagram from another perspective of a partial structure of a cable retracting and releasing device provided in an embodiment of the present application;

[0027] Figure 4 This is a partial structural cross-sectional view of a cable retracting and releasing device provided in an embodiment of the present application;

[0028] Figure 5 This is a partial structural diagram of another cable retracting and releasing device provided in an embodiment of the present application;

[0029] Figure 6 This is a partial structural front view of a cable retracting and releasing device provided in an embodiment of the present application;

[0030] Figure 7 It is a structural diagram of a retractable system provided in an embodiment of the present application.

[0031] The above drawings illustrate specific embodiments of the present application, which will be described in more detail below. These drawings and the textual description are not intended to limit the scope of the present application in any way, but rather to illustrate the concepts of the present application to those skilled in the art by reference to specific embodiments. DETAILED DESCRIPTION

[0032] In order to make the objectives, technical solutions and advantages of this application clearer, the implementation methods of this application will be further described in detail below with reference to the accompanying drawings.

[0033] Please refer to Figure 1 、 Figure 2 and Figure 3 , Figure 1 This is a structural diagram of a cable retracting and releasing device integrated into a retracting and releasing system provided in an embodiment of the present application. Figure 2 yes Figure 1 A schematic diagram of a portion of the structure of the cable retracting and releasing device is shown in FIG. Figure 3 This is a schematic diagram from another perspective of a partial structure of a cable retraction and deployment device provided in an embodiment of the present application. The cable retraction and deployment device can be integrated into a retraction and deployment system to deploy and retrieve exploration equipment. The cable retraction and deployment device 000 may include: an A-frame body 100, a passive compensation hydraulic cylinder 200, an accumulator 300, and a lifting point pulley 400.

[0034] The A-frame body 100 of the cable retracting and releasing device 000 may include a crossbeam 101 and two support frames 102 fixedly connected to the ends of the crossbeam 101. The support frames 102 can be fixed to the hull. In other words, the cable retracting and releasing device 000 can be fixed to the hull via the support frames 102 in the A-frame body 100.

[0035] The passive compensating hydraulic cylinder 200 in the cable retracting and releasing device 000 may be distributed in the area between the two support frames 102 . The passive compensating hydraulic cylinder 200 may have a hydraulic telescopic rod 201 , and the bottom of the passive compensating hydraulic cylinder 200 may be hinged to the central area of the beam 101 .

[0036] The accumulator 300 in the cable retracting and releasing device 000 may be mounted on the A-frame body 100 and connected to the passive compensation hydraulic cylinder 200 .

[0037] The top of the suspension point pulley 400 in the cable retracting and releasing device 000 can be hinged to the end of the hydraulic telescopic rod 201 in the passive compensation hydraulic cylinder 200, and the suspension point pulley 400 can be used to thread the cable 002.

[0038] In the embodiment of the present application, a passive compensation hydraulic cylinder 200 is provided between the crossbeam 101 and the hanging point pulley 400 in the cable retracting and releasing device 000, and the passive compensation hydraulic cylinder 200 is connected to the accumulator 300. In this way, when the cable retracting and releasing device 000 is in a working state on the hull, when the hull is subjected to the influence of factors such as wind, waves, and currents on the sea surface and is subjected to upward movement, the hull has a large inertia, and the exploration equipment cannot immediately rise accordingly. The increase in cable tension drives the hanging point pulley 400 connected to the hydraulic telescopic rod 201 to move away from the passive compensation hydraulic cylinder 200, and the hydraulic oil in the passive compensation hydraulic cylinder 200 flows to the accumulator 300. The passive compensation hydraulic cylinder 200 and the accumulator 300 are equivalent to compression springs. The rebound force generated can compensate for the impact force generated by the hanging point pulley 400, thereby compensating for the upward movement of the hull, thereby effectively avoiding the adverse phenomenon of the A-frame body 100 being subjected to impact loads, thereby ensuring the normal operation of the retracting and releasing system integrated with the cable retracting and releasing device 000. It should be noted that the hydraulic oil in the accumulator 300 can also flow into the passive compensation hydraulic cylinder 200 to restore the stroke of the hydraulic telescopic rod 201.

[0039] In summary, embodiments of the present application provide a cable retraction and deployment device, which may include: an A-frame body, a passive compensating hydraulic cylinder, an accumulator, and a lifting point pulley. By disposing a passive compensating hydraulic cylinder between the crossbeam and the lifting point pulley in the cable retraction and deployment device, and connecting the passive compensating hydraulic cylinder to the accumulator, when the cable retraction and deployment device is in operation on a vessel, and the vessel is subjected to upward movement due to factors such as wind, waves, and currents on the sea surface, the vessel has significant inertia, and the exploration equipment cannot immediately rise with it. Increased cable tension drives the lifting point pulley connected to the hydraulic telescopic rod away from the passive compensating hydraulic cylinder, causing hydraulic oil in the passive compensating hydraulic cylinder to flow into the accumulator. The passive compensating hydraulic cylinder and the accumulator act as compression springs, generating a rebound force that can compensate for the impact force generated by the lifting point pulley, thereby compensating for the upward movement of the vessel. This effectively prevents the A-frame body from being subjected to adverse impact loads and ensures the normal operation of the retraction and deployment system integrated with the cable retraction and deployment device. It should be noted that the hydraulic oil in the accumulator can also flow into the passive compensating hydraulic cylinder, causing the hydraulic telescopic rod to recover its stroke.

[0040] Optional, please refer to Figure 4 , Figure 4It is a partial structural cross-sectional view of a cable retracting and releasing device provided in an embodiment of the present application. The passive compensation hydraulic cylinder 200 in the cable retracting and releasing device 000 may have an oil cylinder cavity that carries a hydraulic telescopic rod 201. The oil cylinder cavity may include a rod cavity a1 and a rodless cavity a2. The rod cavity a1 in the passive compensation hydraulic cylinder 200 may be connected to the accumulator 300. In this way, when the cable retracting and releasing device is in a working state on the hull, when the hull is subjected to the influence of factors such as wind, waves, and currents on the sea surface and performs an upward movement, the hull has a large inertia, and the exploration equipment cannot immediately rise with it. The increase in cable tension drives the lifting point pulley 400 connected to the hydraulic telescopic rod 201 to move away from the passive compensation hydraulic cylinder, and the hydraulic telescopic rod 201 extends, causing the hydraulic oil in the rod cavity a1 to flow to the accumulator 300. For example, the accumulator 300 can also be connected to a constant pressure source and a relief valve (not shown in the figure), so that the constant pressure source can keep the pressure of the accumulator 300 basically in a constant state, further ensuring that the passive compensation hydraulic cylinder 200 has a better buffering effect on the impact of the suspension pulley 400.

[0041] It should be noted that the rod chamber a1 and the rodless chamber a2 in the passive compensation hydraulic cylinder 200 can be distributed on both sides of the piston 201a in the hydraulic telescopic rod 201, and the piston 201a of the hydraulic telescopic rod 201 can be in sliding contact with the inner wall of the cylinder cavity.

[0042] In the examples of this application, please refer to Figure 4 and Figure 5 , Figure 5 It is a partial structural diagram of another cable retraction and release device provided in an embodiment of the present application. The passive compensation hydraulic cylinder 200 may have an oil port b1 connected to the rod chamber a1 in the cylinder cavity. The cable retraction and release device 000 may also include: a connecting hose 500, one end of which may be connected to the oil port b1 of the passive compensation hydraulic cylinder 200, and the other end of the connecting hose 500 may be connected to the accumulator 300. In this case, by using the connecting hose 500 to connect to the accumulator 300 and the passive compensation hydraulic cylinder 200 respectively, the suspension pulley 400 can drive the passive compensation hydraulic cylinder 200 to swing while being able to swing freely, and the connecting hose 500 will not affect the swing of the passive compensation hydraulic cylinder 200.

[0043] In the present application, the number of oil ports b1 of the passive compensating hydraulic cylinder 200 can be two, and the two oil ports b1 can be located on both sides of the hydraulic telescopic rod 201 in the passive compensating hydraulic cylinder 200. The two connecting hoses 500 can correspond to the two oil ports b1 one by one. Here, each connecting hose 500 can be connected to the oil port b1 in the corresponding passive compensating hydraulic cylinder 200. In this way, by setting two oil ports b1 in the passive compensating hydraulic cylinder 200 and then connecting through two connecting hoses 500, while ensuring the flow rate of the hydraulic oil, the size of the connecting hose 500 will not be large. For example, Figure 5 As shown, the connecting hose 500 may include a hose body 501 and a connecting elbow 502. One end of the hose body 501 may be connected to the accumulator 300, and the other end of the hose body 501 may be securely connected to the connecting elbow 502. The end of the connecting elbow 502 facing away from the hose body 501 may be connected to the passive compensation hydraulic cylinder 200. It should be noted that when two oil ports b1 are provided in the passive compensation hydraulic cylinder 200 to connect to the two connecting hoses 500, the dimensions of the hose body 501 and the connecting elbow 502 in the connecting hose 500 can be kept small.

[0044] Optional, such as Figure 4 As shown, the bottom of the passive compensating hydraulic cylinder 200 may have a through hole b2 that communicates with the rodless chamber a2 of the cylinder body. The rodless chamber a2 of the cylinder body may be a vacuum chamber. The cable retraction and release device 000 may include a sealing member 600 that can be fixed to the through hole b2 of the passive compensating hydraulic cylinder 200. In this case, by setting the rodless chamber a2 in the cylinder body as a vacuum chamber, the passive compensating hydraulic cylinder 200 can provide a certain amount of rebound force to the hydraulic telescopic rod 201 during buffering and compensation, further ensuring a good buffering and compensation effect of the passive compensating hydraulic cylinder 200.

[0045] In the examples of this application, please refer to Figure 6 , Figure 6This is a partial structural front view of a cable retraction and deployment device provided in an embodiment of the present application. The suspension point pulley 400 in the cable retraction and deployment device 000 may include a pulley body 401 and a pulley bracket 402. The pulley body 401 may be hingedly connected to the pulley bracket 402. The pulley bracket 402 may have a first connection hole c1. The end of the hydraulic telescopic rod 201 may have a second connection hole c2 that communicates with the first connection hole c1 in the pulley body 401. The cable retraction and deployment device 000 may also include a screw 700 and a fastening nut 800. One end of the screw 700 may pass through the first connection hole c1 in the pulley body 401 and the second connection hole c2 in the hydraulic telescopic rod 201, and then be threadedly connected to the fastening nut 800. In this case, by setting a second connecting hole c2 at the end of the hydraulic telescopic rod 201, setting a first connecting hole c1 in the pulley bracket 402, and connecting the passive compensation hydraulic cylinder 200 and the suspension point pulley 400 by means of screws 700 and fastening nuts 800, it is convenient for operators to assemble, disassemble and repair the passive compensation hydraulic cylinder 200 and the suspension point pulley 400.

[0046] In summary, embodiments of the present application provide a cable retraction and deployment device, which may include: an A-frame body, a passive compensating hydraulic cylinder, an accumulator, and a lifting point pulley. By disposing a passive compensating hydraulic cylinder between the crossbeam and the lifting point pulley in the cable retraction and deployment device, and connecting the passive compensating hydraulic cylinder to the accumulator, when the cable retraction and deployment device is in operation on a vessel, and the vessel is subjected to upward movement due to factors such as wind, waves, and currents on the sea surface, the vessel has significant inertia, and the exploration equipment cannot immediately rise with it. Increased cable tension drives the lifting point pulley connected to the hydraulic telescopic rod away from the passive compensating hydraulic cylinder, causing hydraulic oil in the passive compensating hydraulic cylinder to flow into the accumulator. The passive compensating hydraulic cylinder and the accumulator act as compression springs, generating a rebound force that can compensate for the impact force generated by the lifting point pulley, thereby compensating for the upward movement of the vessel. This effectively prevents the A-frame body from being subjected to adverse impact loads and ensures the normal operation of the retraction and deployment system integrated with the cable retraction and deployment device. It should be noted that the hydraulic oil in the accumulator can also flow into the passive compensating hydraulic cylinder, causing the hydraulic telescopic rod to recover its stroke.

[0047] The present application also provides a retractable system 00, please refer to Figure 7 , Figure 7Schematic diagram of a cable retraction system according to an embodiment of the present application. Cable retraction system 00 may include a winch 001, a cable 002, and a cable retraction device 000. Winch 001 may be mounted on a support frame 102 within cable retraction device 000. A portion of cable 002 may be wound around winch 001, and the portion of cable 002 extending from winch 001 may be wound around a suspension point pulley 400 within cable retraction device 000. For example, cable retraction device 000 may be any of the aforementioned cable retraction devices.

[0048] It should be noted that in the accompanying drawings, the sizes of layers and regions may be exaggerated for clarity of illustration. It will also be understood that when an element or layer is referred to as being "on" another element or layer, it may be directly on the other element, or there may be an intermediate layer. In addition, it will be understood that when an element or layer is referred to as being "under" another element or layer, it may be directly under the other element, or there may be more than one intermediate layer or element. In addition, it will also be understood that when a layer or element is referred to as being "between" two layers or elements, it may be the only layer between the two layers or elements, or there may also be more than one intermediate layer or element. Similar reference numerals throughout the text indicate similar elements.

[0049] In this application, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance. The term "plurality" refers to two or more than two, unless expressly limited otherwise.

[0050] The above description is merely an optional embodiment of the present application and is not intended to limit the present application. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present application shall be included in the scope of protection of the present application.

Claims

1. A cable retracting and releasing device, characterized in that: include: A-frame body, passive compensation hydraulic cylinder, accumulator and lifting point pulley; The A-frame body includes: a crossbeam, and two support frames fixedly connected to the two ends of the crossbeam, respectively, and the support frames are used to be fixed on the hull; The passive compensation hydraulic cylinder is distributed in the area between the two support frames, the passive compensation hydraulic cylinder has a hydraulic telescopic rod, and the bottom of the passive compensation hydraulic cylinder is hinged to the central area of the crossbeam; The accumulator is mounted on the A-frame body and connected to the passive compensation hydraulic cylinder; The top of the suspension point pulley is hinged to the end of the hydraulic telescopic rod, and the suspension point pulley is used for threading and winding the cable.

2. The cable retracting and releasing device according to claim 1, wherein: The passive compensation hydraulic cylinder has an oil cylinder cavity that carries the hydraulic telescopic rod. The oil cylinder cavity includes a rod cavity and a rodless cavity. The rod cavity is connected to the accumulator.

3. The cable retracting and releasing device according to claim 2, characterized in that: The passive compensation hydraulic cylinder has an oil port communicating with the rod chamber; The cable retracting and releasing device further includes a connecting hose, one end of which is connected to the oil port, and the other end of which is connected to the accumulator.

4. The cable retracting and releasing device according to claim 3, characterized in that: There are two oil ports, and the two oil ports are respectively located on both sides of the hydraulic telescopic rod; there are two connecting hoses, and the two connecting hoses correspond one-to-one to the two oil ports.

5. The cable retracting and releasing device according to claim 3, characterized in that: The connecting hose includes a hose body and a connecting elbow. One end of the hose body is connected to the accumulator, and the other end is connected to the connecting elbow. The end of the connecting elbow facing away from the hose body is connected to the passive compensation hydraulic cylinder.

6. The cable retracting and releasing device according to any one of claims 2 to 5, characterized in that: The bottom of the passive compensation hydraulic cylinder has a through hole communicating with the rodless cavity, and the rodless cavity is a vacuum cavity; The cable retracting and releasing device includes a blocking piece fixed at the through hole.

7. The cable retracting and releasing device according to any one of claims 1 to 5, characterized in that: The suspension point pulley comprises: a pulley body and a pulley bracket, wherein the pulley body is hinged to the pulley bracket, and the pulley bracket has a first connecting hole; an end of the hydraulic telescopic rod has a second connecting hole communicating with the first connecting hole; The cable retracting and releasing device further includes: a screw and a fastening nut, wherein one end of the screw passes through the first connecting hole and the second connecting hole and is threadedly connected to the fastening nut.

8. A retractable system, characterized in that: include: A winch, a cable and a cable retracting device, wherein the winch is mounted on a support frame in the cable retracting device, a portion of the cable is wound around the winch, and a portion of the cable extending from the winch is wound around a suspension point pulley in the cable retracting device, and the cable retracting device is the cable retracting device described in any one of claims 1 to 7 above.

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