An emergency cable retracting device for an unmanned platform

Abstract

The present invention discloses an emergency cable retracting device for an unmanned platform, which comprises a rigid suspension and a cable drum. The cable drum and the rigid suspension are both arranged on the platform deck. A guide wheel and a support wheel are arranged at intervals on the rigid suspension. A middle driven pulley is arranged between the guide wheel and the support wheel. The cable on the cable drum abuts against the support wheel via the middle driven pulley along the guide wheel, so that the transmission direction of the cable changes from an oblique upward direction to a horizontal direction. A front-end wire feeding module is arranged on the side of the rigid suspension away from the guide wheel, and the front-end wire feeding module clamps the cable and transports it in a horizontal direction. The emergency cable retracting device for an unmanned platform provided by the present invention drives the middle driven pulley to transmit the cable to a designated position through the front-end wire feeding module. The cable drum makes it convenient to retract and release the cable, and also plays a role in protecting the cable. The cable transmission has high reliability, high automation, stable and controllable transmission, and convenient cable recovery.

Description

Technical Field

[0001] The invention belongs to the technical field of electromechanical equipment of offshore oil unmanned platforms, and in particular relates to an emergency cable retracting and releasing device for unmanned platforms. Background Art

[0002] When personnel go to work on an unmanned platform, they usually use a remote-controlled retractable suspension bridge to get on the platform. When the power of the unmanned platform is lost, the remote-controlled suspension bridge cannot be used. Personnel can only climb a soft ladder or jump on the platform to get on the platform, which poses a greater risk of falling into the water or getting injured.

[0003] In bad weather, the unmanned platform loses power, which restricts the rapid resumption of oil field production. When the unmanned platform loses power, the remote control bridge system of the unmanned platform needs an emergency power supply, which is connected to the ship's own power system through an emergency cable, so that the unmanned platform remote control bridge can restore power supply.

[0004] Therefore, it is urgent to design an emergency cable retracting device for an unmanned platform to solve the problem of supplying power to the ship's own power system after the unmanned platform loses power mentioned above. Summary of the invention

[0005] In order to solve the technical problem mentioned in the background technology that the remote-controlled drawbridge cannot be used after the unmanned platform loses power, and personnel can only board the unmanned platform by climbing a soft ladder or jumping on the board, which involves a great risk of falling into the water or getting injured, an emergency cable retraction and release device for an unmanned platform is provided to solve the problem of supplying power to the ship's own power system after the unmanned platform loses power.

[0006] To achieve the above purpose, the specific technical solution of the emergency cable retracting device for an unmanned platform of the present invention is as follows: An emergency cable retracting and releasing device for an unmanned platform comprises a rigid suspension and a cable drum, both of which are arranged on the platform deck, guide wheels and support wheels are arranged on the rigid suspension at intervals, a middle driven pulley is arranged between the guide wheel and the support wheel, the cable on the cable drum abuts against the support wheel along the guide wheel via the middle driven pulley, so that the transmission direction of the cable changes from an oblique upward direction to a horizontal direction; a front end wire feeding module is arranged on the side of the rigid suspension away from the guide wheel, and the front end wire feeding module clamps the cable and transports it in a horizontal direction.

[0007] Furthermore, the front-end wire feeding module includes an end driving pulley and a motor, and the motor is axially connected to the end driving pulley through a coupling so that the end driving pulley drives the cable to move.

[0008] Furthermore, an end driven pulley is arranged above the end driving pulley at intervals, so that the protruding end of the cable is clamped between the end driving pulley and the end driven pulley.

[0009] Furthermore, the end driving pulley and the end driven pulley can be adjusted up and down in the vertical direction to clamp the cable.

[0010] Furthermore, the guide wheel is provided with a notch so that the protruding end of the cable can abut against the notch.

[0011] Furthermore, the middle driven pulley includes a first middle driven pulley and a second middle driven pulley, and the first middle driven pulley and the second middle driven pulley are connected to the rigid suspension frame at intervals in the vertical direction.

[0012] Furthermore, the first middle driven pulley and the second middle driven pulley can be adjusted up and down in the vertical direction, and the cable is clamped between the first middle driven pulley and the second middle driven pulley.

[0013] Furthermore, the supporting wheel and the guide wheel are located at the same height as the abutting end of the cable.

[0014] Furthermore, the middle driven pulley, guide wheel and support wheel are all arranged on the first connecting plate, and the first connecting plate is screwed to the rigid suspension beam by the first bolt. The screwing position of the first connecting plate is changed to change the inclination direction of the protruding end of the cable.

[0015] Furthermore, the front-end wire feeding module is arranged on the second connecting plate, and the second connecting plate is screwed to the rigid suspension beam by a second bolt. The screwing position of the second connecting plate is changed to change the distance between the first connecting plate and the second connecting plate.

[0016] The emergency cable retracting and releasing device for an unmanned platform of the present invention has the following advantages: The front-end wire feeding module drives the middle driven pulley to transmit the cable to the designated position. The cable reel makes it easy to retract and release the cable, and also protects the cable. The cable transmission is highly reliable, highly automated, and the transmission is stable and controllable, and the cable is easy to recycle. This application solves the problem of relying on auxiliary steel wire rope towing, making it easy to recycle and install the cable, and solving the problems of cable jams and knots when the cable is lowered. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall structure of the emergency cable retracting and releasing device of the unmanned platform of the present invention; Figure 2 It is a schematic diagram of the connection between the driven pulley in the middle of the emergency cable retracting device of the unmanned platform of the present invention and the first connecting plate; Figure 3 It is a structural schematic diagram of the front-end wire feeding module of the emergency cable retracting and releasing device of the unmanned platform of the present invention.

[0018] Description of the markings in the figure: 1. Rigid suspension; 2. Cable drum; 3. Guide wheel; 4. Support wheel; 5. Middle driven pulley; 51. First middle driven pulley; 52. Second middle driven pulley; 6. Cable; 7. Front end wire feeding module; 71. End driving pulley; 72. End driven pulley; 73. Motor; 8. First connecting plate; 9. Second connecting plate; 10. Platform deck. DETAILED DESCRIPTION

[0019] In order to make the purpose, technical solution and advantages of the embodiments of the present invention clearer, the technical solution in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the present invention.

[0020] Those skilled in the art will appreciate that, although some embodiments herein include certain features included in other embodiments but not other features, the combination of features of different embodiments is meant to be within the scope of the present invention and form different embodiments. For example, in the claims, any one of the claimed embodiments may be used in any combination.

[0021] Please refer to the attached Figure 1 To Attachment Figure 3 The invention describes an emergency cable retracting and releasing device for an unmanned platform.

[0022] like Figure 1 As shown, the emergency cable retracting and releasing device of the unmanned platform in the present invention includes a rigid suspension 1 and a cable drum 2, the cable drum 2 and the rigid suspension 1 are both arranged on the platform deck 10, the rigid suspension 1 is provided with guide wheels 3 and support wheels 4 at intervals, a middle driven pulley 5 is provided between the guide wheel 3 and the support wheel 4, the cable line 6 on the cable drum 2 is abutted against the support wheel 4 along the guide wheel 3 through the middle driven pulley 5, so that the transmission direction of the cable line 6 is changed from an oblique upward direction to a horizontal direction; a front end wire feeding module 7 is provided on the side of the rigid suspension 1 away from the guide wheel 3, and the front end wire feeding module 7 clamps the cable line 6 and transports it in a horizontal direction.

[0023] The front-end wire feeding module 7 drives the middle driven pulley 5 to transmit the cable 6 to the designated position. The cable reel 2 makes it easy to retract and release the cable 6, and also protects the cable 6. The cable 6 has strong transmission reliability, high degree of automation, stable and controllable transmission, and convenient cable recovery. The present application solves the problems of relying on auxiliary steel wire rope dragging, convenient cable recovery and installation, and cable jamming and knotting during cable release.

[0024] Further, if Figure 1 and Figure 3 As shown, the front-end wire feeding module 7 includes an end driving pulley 71 and a motor 73. The motor 73 is axially connected to the end driving pulley 71 through a coupling so that the end driving pulley 71 drives the cable 6 to move; an end driven pulley 72 is arranged above the end driving pulley 71 so that the protruding end of the cable 6 is clamped between the end driving pulley 71 and the end driven pulley 72; the end driving pulley 71 and the end driven pulley 72 can be adjusted up and down in the vertical direction to clamp the cable 6.

[0025] In this embodiment, the end driving pulley 71 is arranged at the protruding end of the rigid suspension 1, and the end driving pulley 71 is connected to the motor 73 through a coupling. Preferably, the motor 73 is an AC asynchronous motor, and the AC asynchronous motor drives the coupling to drive the end driving pulley 71 to rotate.

[0026] An end driven pulley 72 is provided above the end driving pulley 71, and the end driving pulley 71 and the end driven pulley 72 can be adjusted up and down in the vertical direction. Preferably, the protruding end of the cable 6 abuts against the end driving pulley 71, and the relative positions of the end driving pulley 71 and the end driven pulley 72 are adjusted so that the protruding end of the cable 6 is clamped between the end driving pulley 71 and the end driven pulley 72, and the end driving pulley 71 rotates, thereby driving the cable 6 to move.

[0027] Further, if Figure 1 As shown, the guide wheel 3 is provided with a slot so that the protruding end of the cable 6 can abut against the slot; the middle driven pulley 5 includes a first middle driven pulley 51 and a second middle driven pulley 52, and the first middle driven pulley 51 and the second middle driven pulley 52 are connected to the rigid suspension 1 at intervals in the vertical direction; the first middle driven pulley 51 and the second middle driven pulley 52 can be adjusted up and down in the vertical direction, and the cable 6 is clamped between the first middle driven pulley 51 and the second middle driven pulley 52.

[0028] In this embodiment, preferably, the guide wheel 3 is composed of a solid wheel and two ball bearings, so that a notch is formed on the guide wheel, so that the protruding end of the cable 6 abuts against the notch, thereby changing the moving direction of the cable 6.

[0029] A first middle driven pulley 51 and a second middle driven pulley 52 are provided on the rigid suspension beam 1 . The first middle driven pulley 51 and the second middle driven pulley 52 are arranged at intervals in the vertical direction, and the first middle driven pulley 51 is located above the second middle driven pulley 52 .

[0030] The first middle driven pulley 51 and the second middle driven pulley 52 can be adjusted up and down in the vertical direction, so that the cable 6 is clamped between the first middle driven pulley 51 and the second middle driven pulley 52, avoiding the lateral movement of the cable 6 before entering the end driving pulley 71 and the end driven pulley 72, thereby playing the role of positioning and transmitting the cable 6.

[0031] Further, if Figure 1 and Figure 2 As shown, the support wheel 4 and the guide wheel 3 are at the same height as the abutting end of the cable 6; the middle driven pulley 5, the guide wheel 3 and the support wheel 4 are all arranged on the first connecting plate 8, and the first connecting plate 8 is screwed to the rigid suspension beam 1 by the first bolt. The screwing position of the first connecting plate 8 is changed to change the inclination direction of the protruding end of the cable 6; the front end wire feeding module 7 is arranged on the second connecting plate 9, and the second connecting plate 9 is screwed to the rigid suspension beam 1 by the second bolt. The screwing position of the second connecting plate 9 is changed to change the spacing between the first connecting plate 8 and the second connecting plate 9.

[0032] In this embodiment, preferably, the supporting wheel 4 and the guide wheel 3 are located at the same height as the abutting end of the cable 6 to ensure that the cable 6 moves in the horizontal direction.

[0033] A first connecting plate 8 and a second connecting plate 9 are screwed at intervals on the extended end of the rigid suspension beam 1. Preferably, the middle driven pulley 5, the guide wheel 3 and the support wheel 4 are all connected to the first connecting plate 8, and the end driving pulley 71 and the end driven pulley 72 are connected to the second connecting plate 9.

[0034] By adjusting the screw connection position of the first connecting plate 8 on the rigid suspension beam 1, the inclination direction of the protruding end of the cable 6 is changed, and the support wheel 4 is ensured to support the cable 6 during the process of sending the cable 6 forward to the end driving pulley 71 and the end driven pulley 72.

[0035] By adjusting the screw connection position of the second connecting plate 9 on the rigid suspension beam 1, the lateral position of the protruding end of the cable 6 can be changed, which is convenient for connecting to the ship's own power system for power supply; the emergency cable can be released remotely in the event of a power outage on the unmanned platform, thereby ensuring the normal operation of the unmanned platform electric winch and suspension bridge in the event of a power outage.

[0036] The construction steps of the emergency cable retracting device of the unmanned platform in this application are as follows: When the platform loses power, the platform electric winch loses power and the suspension bridge cannot be used; At this time, the dual power switch is switched to the backup power supply, the cable 6 is released, and the motor 73 is powered by the UPS. When the ship approaches the unmanned platform, the crew on board remotely turns on the motor 73, and the motor 73 drives the end driving pulley 71 to rotate. The end driving pulley 71 pushes the cable 6 forward through the friction between the end driving pulley 71 and the cable 6. The cable 6 is guided and positioned by the guide wheel 3, the first middle driven pulley 51 and the second middle driven pulley 52 are pressed and fixed, and the support wheel 4 is used for transmission support. The cable 6 can reach the specified position to realize the power supply of the unmanned platform; The backup power cable 6 is connected to the ship's power supply through a waterproof cable connector, and the dual power cabinet is restored to power, and the electric winch is restored to power supply; After the cable 6 is finished being used, the cable 6 is retracted onto the cable reel 2 , the motor 73 is turned off, and the cable reel 2 is manually cranked to retract the cable 6 .

[0037] The emergency cable retracting device based on the unmanned platform drives the first middle driven pulley 51 and the second middle driven pulley 52 to convey the cable 6 to the designated position through the end active pulley 71 and the end driven pulley 72. The cable reel 2 makes it easy to retract the cable 6 and also protects the cable 6. The cable 6 has high reliability in transportation, high degree of automation, stable and controllable transportation, and convenient cable recovery. The present application solves the problems of relying on auxiliary steel wire rope towing, making it convenient to recover and install the cable 6, and solving the problems of the cable 6 being stuck and knotted when it is lowered.

[0038] Obviously, the above embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention. For those skilled in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all the embodiments here. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the claims of the present invention.

Claims

1. An emergency cable retracting device for an unmanned platform, characterized in that: It includes a rigid suspension and a cable drum, both of which are arranged on the platform deck. Guide wheels and support wheels are arranged on the rigid suspension at intervals, and a middle driven pulley is arranged between the guide wheel and the support wheel. The cable on the cable drum abuts against the support wheel along the guide wheel via the middle driven pulley, so that the transmission direction of the cable changes from an oblique upward direction to a horizontal direction. A front end wire feeding module is arranged on the side of the rigid suspension away from the guide wheel, and the front end wire feeding module clamps the cable and transports it in a horizontal direction.

2. The emergency cable retracting device for an unmanned platform according to claim 1, characterized in that: The front-end wire feeding module comprises an end driving pulley and a motor, and the motor is axially connected to the end driving pulley through a coupling so that the end driving pulley drives the cable to move.

3. The emergency cable retracting device for an unmanned platform according to claim 2, characterized in that: An end driven pulley is arranged above the end driving pulley at intervals, so that the protruding end of the cable is clamped between the end driving pulley and the end driven pulley.

4. The emergency cable retracting device for an unmanned platform according to claim 3 is characterized in that: The end driving pulley and the end driven pulley can be adjusted up and down in the vertical direction to clamp the cable.

5. The emergency cable retracting device for an unmanned platform according to claim 1, characterized in that: The guide wheel is provided with a notch so that the protruding end of the cable can abut against the notch.

6. The emergency cable retracting device for an unmanned platform according to claim 1, characterized in that: The middle driven pulley comprises a first middle driven pulley and a second middle driven pulley, and the first middle driven pulley and the second middle driven pulley are connected to the rigid suspension frame at intervals in the vertical direction.

7. The emergency cable retracting and releasing device for an unmanned platform according to claim 6, characterized in that: The first middle driven pulley and the second middle driven pulley can be adjusted up and down in the vertical direction, and the cable is clamped between the first middle driven pulley and the second middle driven pulley.

8. The emergency cable retracting and releasing device for an unmanned platform according to claim 1, characterized in that: The supporting wheel and the guide wheel are located at the same height as the abutting end of the cable.

9. The emergency cable retracting and releasing device for an unmanned platform according to claim 1, characterized in that: The middle driven pulley, guide wheel and support wheel are all arranged on the first connecting plate, and the first connecting plate is screwed to the rigid suspension beam through the first bolt. The screwing position of the first connecting plate is changed to change the inclination direction of the extended end of the cable.

10. The emergency cable retracting and releasing device for an unmanned platform according to claim 9, characterized in that: The front-end wire feeding module is arranged on the second connecting plate, and the second connecting plate is screwed on the rigid suspension beam by the second bolt. The screwing position of the second connecting plate is changed to change the distance between the first connecting plate and the second connecting plate.

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