CN114194956A - Intelligent retraction device for ship shore power cable - Google Patents
Intelligent retraction device for ship shore power cable Download PDFInfo
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- CN114194956A CN114194956A CN202111585318.7A CN202111585318A CN114194956A CN 114194956 A CN114194956 A CN 114194956A CN 202111585318 A CN202111585318 A CN 202111585318A CN 114194956 A CN114194956 A CN 114194956A
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- 238000000034 method Methods 0.000 claims description 4
- 238000004804 winding Methods 0.000 abstract description 21
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- 230000008569 process Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
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- 238000010276 construction Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H75/00—Storing webs, tapes, or filamentary material, e.g. on reels
- B65H75/02—Cores, formers, supports, or holders for coiled, wound, or folded material, e.g. reels, spindles, bobbins, cop tubes, cans, mandrels or chucks
- B65H75/34—Cores, formers, supports, or holders for coiled, wound, or folded material, e.g. reels, spindles, bobbins, cop tubes, cans, mandrels or chucks specially adapted or mounted for storing and repeatedly paying-out and re-storing lengths of material provided for particular purposes, e.g. anchored hoses, power cables
- B65H75/38—Cores, formers, supports, or holders for coiled, wound, or folded material, e.g. reels, spindles, bobbins, cop tubes, cans, mandrels or chucks specially adapted or mounted for storing and repeatedly paying-out and re-storing lengths of material provided for particular purposes, e.g. anchored hoses, power cables involving the use of a core or former internal to, and supporting, a stored package of material
- B65H75/44—Constructional details
- B65H75/48—Automatic re-storing devices
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H75/00—Storing webs, tapes, or filamentary material, e.g. on reels
- B65H75/02—Cores, formers, supports, or holders for coiled, wound, or folded material, e.g. reels, spindles, bobbins, cop tubes, cans, mandrels or chucks
- B65H75/34—Cores, formers, supports, or holders for coiled, wound, or folded material, e.g. reels, spindles, bobbins, cop tubes, cans, mandrels or chucks specially adapted or mounted for storing and repeatedly paying-out and re-storing lengths of material provided for particular purposes, e.g. anchored hoses, power cables
- B65H75/38—Cores, formers, supports, or holders for coiled, wound, or folded material, e.g. reels, spindles, bobbins, cop tubes, cans, mandrels or chucks specially adapted or mounted for storing and repeatedly paying-out and re-storing lengths of material provided for particular purposes, e.g. anchored hoses, power cables involving the use of a core or former internal to, and supporting, a stored package of material
- B65H75/40—Cores, formers, supports, or holders for coiled, wound, or folded material, e.g. reels, spindles, bobbins, cop tubes, cans, mandrels or chucks specially adapted or mounted for storing and repeatedly paying-out and re-storing lengths of material provided for particular purposes, e.g. anchored hoses, power cables involving the use of a core or former internal to, and supporting, a stored package of material mobile or transportable
- B65H75/42—Cores, formers, supports, or holders for coiled, wound, or folded material, e.g. reels, spindles, bobbins, cop tubes, cans, mandrels or chucks specially adapted or mounted for storing and repeatedly paying-out and re-storing lengths of material provided for particular purposes, e.g. anchored hoses, power cables involving the use of a core or former internal to, and supporting, a stored package of material mobile or transportable attached to, or forming part of, mobile tools, machines or vehicles
- B65H75/425—Cores, formers, supports, or holders for coiled, wound, or folded material, e.g. reels, spindles, bobbins, cop tubes, cans, mandrels or chucks specially adapted or mounted for storing and repeatedly paying-out and re-storing lengths of material provided for particular purposes, e.g. anchored hoses, power cables involving the use of a core or former internal to, and supporting, a stored package of material mobile or transportable attached to, or forming part of, mobile tools, machines or vehicles attached to, or forming part of a vehicle, e.g. truck, trailer, vessel
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H75/00—Storing webs, tapes, or filamentary material, e.g. on reels
- B65H75/02—Cores, formers, supports, or holders for coiled, wound, or folded material, e.g. reels, spindles, bobbins, cop tubes, cans, mandrels or chucks
- B65H75/34—Cores, formers, supports, or holders for coiled, wound, or folded material, e.g. reels, spindles, bobbins, cop tubes, cans, mandrels or chucks specially adapted or mounted for storing and repeatedly paying-out and re-storing lengths of material provided for particular purposes, e.g. anchored hoses, power cables
- B65H75/38—Cores, formers, supports, or holders for coiled, wound, or folded material, e.g. reels, spindles, bobbins, cop tubes, cans, mandrels or chucks specially adapted or mounted for storing and repeatedly paying-out and re-storing lengths of material provided for particular purposes, e.g. anchored hoses, power cables involving the use of a core or former internal to, and supporting, a stored package of material
- B65H75/44—Constructional details
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H75/00—Storing webs, tapes, or filamentary material, e.g. on reels
- B65H75/02—Cores, formers, supports, or holders for coiled, wound, or folded material, e.g. reels, spindles, bobbins, cop tubes, cans, mandrels or chucks
- B65H75/34—Cores, formers, supports, or holders for coiled, wound, or folded material, e.g. reels, spindles, bobbins, cop tubes, cans, mandrels or chucks specially adapted or mounted for storing and repeatedly paying-out and re-storing lengths of material provided for particular purposes, e.g. anchored hoses, power cables
- B65H75/38—Cores, formers, supports, or holders for coiled, wound, or folded material, e.g. reels, spindles, bobbins, cop tubes, cans, mandrels or chucks specially adapted or mounted for storing and repeatedly paying-out and re-storing lengths of material provided for particular purposes, e.g. anchored hoses, power cables involving the use of a core or former internal to, and supporting, a stored package of material
- B65H75/44—Constructional details
- B65H75/4402—Guiding arrangements to control paying-out and re-storing of the material
- B65H75/4405—Traversing devices; means for orderly arranging the material on the drum
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H75/00—Storing webs, tapes, or filamentary material, e.g. on reels
- B65H75/02—Cores, formers, supports, or holders for coiled, wound, or folded material, e.g. reels, spindles, bobbins, cop tubes, cans, mandrels or chucks
- B65H75/34—Cores, formers, supports, or holders for coiled, wound, or folded material, e.g. reels, spindles, bobbins, cop tubes, cans, mandrels or chucks specially adapted or mounted for storing and repeatedly paying-out and re-storing lengths of material provided for particular purposes, e.g. anchored hoses, power cables
- B65H75/38—Cores, formers, supports, or holders for coiled, wound, or folded material, e.g. reels, spindles, bobbins, cop tubes, cans, mandrels or chucks specially adapted or mounted for storing and repeatedly paying-out and re-storing lengths of material provided for particular purposes, e.g. anchored hoses, power cables involving the use of a core or former internal to, and supporting, a stored package of material
- B65H75/44—Constructional details
- B65H75/4418—Arrangements for stopping winding or unwinding; Arrangements for releasing the stop means
- B65H75/4428—Arrangements for stopping winding or unwinding; Arrangements for releasing the stop means acting on the reel or on a reel blocking mechanism
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H75/00—Storing webs, tapes, or filamentary material, e.g. on reels
- B65H75/02—Cores, formers, supports, or holders for coiled, wound, or folded material, e.g. reels, spindles, bobbins, cop tubes, cans, mandrels or chucks
- B65H75/34—Cores, formers, supports, or holders for coiled, wound, or folded material, e.g. reels, spindles, bobbins, cop tubes, cans, mandrels or chucks specially adapted or mounted for storing and repeatedly paying-out and re-storing lengths of material provided for particular purposes, e.g. anchored hoses, power cables
- B65H75/38—Cores, formers, supports, or holders for coiled, wound, or folded material, e.g. reels, spindles, bobbins, cop tubes, cans, mandrels or chucks specially adapted or mounted for storing and repeatedly paying-out and re-storing lengths of material provided for particular purposes, e.g. anchored hoses, power cables involving the use of a core or former internal to, and supporting, a stored package of material
- B65H75/44—Constructional details
- B65H75/4436—Arrangements for yieldably braking the reel or the material for moderating speed of winding or unwinding
- B65H75/4442—Arrangements for yieldably braking the reel or the material for moderating speed of winding or unwinding acting on the reel
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H75/00—Storing webs, tapes, or filamentary material, e.g. on reels
- B65H75/02—Cores, formers, supports, or holders for coiled, wound, or folded material, e.g. reels, spindles, bobbins, cop tubes, cans, mandrels or chucks
- B65H75/34—Cores, formers, supports, or holders for coiled, wound, or folded material, e.g. reels, spindles, bobbins, cop tubes, cans, mandrels or chucks specially adapted or mounted for storing and repeatedly paying-out and re-storing lengths of material provided for particular purposes, e.g. anchored hoses, power cables
- B65H75/38—Cores, formers, supports, or holders for coiled, wound, or folded material, e.g. reels, spindles, bobbins, cop tubes, cans, mandrels or chucks specially adapted or mounted for storing and repeatedly paying-out and re-storing lengths of material provided for particular purposes, e.g. anchored hoses, power cables involving the use of a core or former internal to, and supporting, a stored package of material
- B65H75/44—Constructional details
- B65H75/4481—Arrangements or adaptations for driving the reel or the material
- B65H75/4486—Electric motors
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H2701/00—Handled material; Storage means
- B65H2701/30—Handled filamentary material
- B65H2701/34—Handled filamentary material electric cords or electric power cables
Landscapes
- Storing, Repeated Paying-Out, And Re-Storing Of Elongated Articles (AREA)
Abstract
The invention provides an intelligent ship shore power cable winding and unwinding device which is provided with a control mechanism, a winding and unwinding mechanism, a left-right moving mechanism and a metal support for installing the mechanisms. The control mechanism is provided with a controller and a sensor A or a sensor B or a sensor C, and the controller can collect signals of the sensors and control the rotation of a motor in the retraction mechanism; the left-right moving mechanism is provided with a bidirectional screw rod, a track parallel to the bidirectional screw rod and a moving rod vertical to the bidirectional screw rod and the moving track; the transmission chain can drive the bidirectional screw rod and the rotating shaft to synchronously rotate. The marine cable is orderly arranged in a small occupied space, is proper in tightness and is freely wound and unwound.
Description
Technical Field
The invention relates to a cable reel and a winding control technology thereof.
Background
In the processes of cargo loading and unloading, equipment maintenance and ship construction of a ship berthing wharf, a shore power supply is generally used for saving resources, and the basic requirements of ship lighting life are met. The shore power access system is an important component of a ship electronic system, the ship shore power cable is a cable for connecting a ship with a shore power supply, the position of the ship is changed, the cable is safely put in, the service life of the cable can be guaranteed, and the normal working capacity of the system is indirectly improved. Meanwhile, shore power can reduce port pollution caused by diesel power generation of ships.
At present, the existing ship for collecting and releasing the shore power cable mainly depends on manpower to pull the cable reel for assisting, the ship is influenced by wind waves, the cable is rubbed with the side edge of a ship body in the collecting and releasing process of the shore power cable, and the high-strength friction easily causes the rubber scratch on the surface of the cable. The ship is close to the shore, the cable is loose and far from the shore, and the cable is strained or even broken, so that unsafe phenomena are easily caused.
The invention with the application number of 2014105945407 provides an automatic winding device for a cable reel tail wire, which comprises a roller conveying line, a winding mechanism and a rack, wherein ball screw linear driving devices and linear guide rails are arranged on the left side and the right side of the top of the rack; the winding mechanism comprises a movable plate, a push rod cylinder, a swing rod and a cable tail wire winding cylinder, and two ends of the movable plate are respectively connected with a lead screw slide block on the ball screw linear driving device and a guide rail slide block on the linear guide rail. The invention does not relate to the unwinding technology of the cable.
The invention with the application number of 2019107551277 relates to an automatic feeding wire spool for a 3D printer, which comprises a rack, a wire guide mechanism, a material storage disk, a synchronous belt transmission mechanism, a driven gear, a driving gear rotating mechanism and a driving gear moving mechanism, wherein the driven gear and the material storage disk are both rotatably arranged on the rack, the wire guide mechanism and the driving gear rotating mechanism are both fixedly arranged on the rack, and the feeding end of the wire guide mechanism is opposite to the discharging end of the material storage disk; the driving gear is fixedly arranged at the working end of the driving gear rotating mechanism and is meshed with the driven wheel. The invention mainly introduces a transmission mechanism and has no innovation on the cable winding and unwinding components.
Disclosure of Invention
The purpose of the invention is as follows:
the intelligent ship shore power cable winding and unwinding device can automatically regulate and control the length of a cable, prevent the cable from being rubbed, loosened or broken in the winding and unwinding process and prolong the service life of the cable.
The technical scheme is as follows:
the intelligent ship shore power cable winding and unwinding device provided by the invention is provided with a control mechanism, a winding and unwinding mechanism, a left-right moving mechanism and a metal support for installing the mechanisms. The control mechanism controls the movement of the retracting mechanism, and the retracting mechanism provides power for the retracting mechanism and the left-right moving mechanism.
A control mechanism:
the controller, the sensor A, or the sensor B (or the sensor A has no sensor B and has the function of the sensor B), or the sensor C is provided.
The controller is provided with a remote controller; the controller can collect cable length signals of the sensor A or the sensor B, can collect cable tightness signals of the sensor C, and can control the operation (positive rotation, negative rotation and stop) of a motor in the following retraction mechanism; the controller can control the motor through a frequency converter so as to save energy, reduce consumption and accurately control the rotating speed.
The sensor A is positioned near a cable receiving and releasing port on a movable rod of a left-right moving mechanism and senses a warning line marked on a cable. When the cable wire is wound to the wire-receiving warning wire, the controller controls the motor to automatically stop for processing, and any other external control cannot instruct the motor to receive the wire for transferring so as to protect the connecting plug at the tail end of the cable.
The sensor B is positioned under the sensor A, senses a warning line marked on the cable and is used for giving an alarm for the paying-off length value. When the cable is applied to the length value of the paying-off warning line (such as 5 meters and 3 meters remained on the cable reel), the controller controls the alarm to automatically alarm (sound and light alarm can be given) to prompt manual emergency treatment.
The sensor C is positioned below the cable drum (preferably, the center of the cable drum is close to the lower part of the central point of a connecting line of the center of a bidirectional screw rod and the center of the bidirectional screw rod, and the cable is larger in sagging degree), the sensor C can detect the loose or tight state of the cable through laser beams, upload data to the controller, and control the motor to rotate for fine adjustment through the controller to perform fine adjustment processing on the receiving or releasing of the cable (the motor slightly rotates forwards and winds when the cable is loose, and the motor slightly rotates backwards when the cable is tight).
The monitoring measures can automatically ensure the relaxation degree of the cable, are particularly suitable for the cable reel to take up and pay off the cable for standby, and avoid accidents caused by the fact that the cable is too much drooped and is mistakenly collided by other machines. The cable is prevented from being excessively tensioned, and the cable is prevented from being damaged or even broken.
A retraction mechanism:
the device comprises a motor, a transmission chain and a cable reel; the motor can drive the rotating shaft of the cable reel to rotate, and the rotating shaft is connected with the bidirectional screw rod through a transmission chain and drives the bidirectional screw rod to synchronously rotate.
The motor can rotate forward, reversely and stop. Or the rotational speed of the motor can be adjusted by means of a frequency converter.
The transmission chain is connected with a rotating shaft (the rotating shaft is connected and driven by a motor driving shaft) of the cable drum and the screw rod (for example, the rotating shaft is connected with a gear on the rotating shaft of the screw rod through a gear on the rotating shaft of the motor and a chain), the rotating speed ratio of the rotating shaft to the rotating shaft of the screw rod is set to be 1:1 or other required ratios, the linear speed of a cable at a winding and unwinding position and the linear speed of a cable at a winding position of the cable drum are ensured to be consistent, and the bidirectional screw rod and the rotating shaft can be driven to synchronously run (rotate forwards and backwards or stop).
One end of the cable is fixedly connected to a starting position of the cable reel winding, the cable is wound when the cable reel rotates in the forward direction, and the cable is released when the cable reel rotates in the reverse direction. The cable can be wound on the cable drum in multiple layers, and each layer can be wound by multiple turns. The cables of adjacent layers are slightly staggered, and the cable of a certain circle of the upper layer falls into the middle groove of two circles of the lower layer. Preferably, the number of turns of the odd layers is one more than that of the even layers, so that the arrangement of cable turns is orderly and not easy to be disordered.
The left-right moving mechanism comprises:
the wire arranging machine is provided with a bidirectional screw rod (or called a wire arranging device), one or two rails arranged in parallel with the bidirectional screw rod, and a moving rod perpendicular to the bidirectional screw rod and the moving rails.
The axial surface of the bidirectional screw rod is provided with a forward rotating thread and a reverse rotating thread, and the two threads are staggered to form a pattern appearance.
The moving rod is provided with a fixed nut (or other components with internal threads, the screw rod can rotate, and the nut does not rotate) which is screwed on the bidirectional screw rod, so that when the bidirectional screw rod rotates, power for moving the moving rod to move left and right can be provided. The movable rod is additionally provided with a sliding block which is connected to the rail in a sliding manner, so that the sliding block slides on the rail when the movable rod moves left and right, and the small moving resistance and high precision of the movable rod are ensured.
The movable rod is provided with a cable receiving and releasing port through which the cable passes and is released, and the movable rod is in clearance fit with the cable, so that the cable basically passes through and is released freely; when the movable rod moves on the bidirectional screw rod, the cable passing through the retracting opening is driven to move along with the cable. The cables are orderly arranged, rolled or released on the cable drum under the dual functions of rotation of the cable drum and left-right movement of the moving rod.
Preferably, the pitch between adjacent threads (two forward threads or two reverse threads) corresponds to the diameter of the cable, and the shift lever shifts substantially one pitch on the bidirectional screw rod when the cable is rotated one turn on the cable drum, so that the windings are arranged in order and are not easily overlapped or loosened. At least the diameter of the cable is required to be positive integral multiple of the thread pitch, so that the winding and the rotary winding can be arranged relatively neatly, and the parameters with good matching need to be designed and determined in advance.
Because there is the distance of variation in size (inlayer distance is far away, and outer distance is little) between cable drum quotation and the two-way lead to the rolling action on the cable drum to remove the translation rate and lag behind the translation rate that cable received and released the mouth on the two-way lead screw, pile easily between the cable of adjacent number of turns together, lead to the cable on this layer excessively closely can not evenly arrange. Preferably, adjacent threads have a pitch slightly larger than the diameter of the cable (N turns per layer and D diameter for the cable, the pitch is set to (N + 1) D/N-N (N + 2) D/N to overcome the hysteresis deviation caused by the flexibility of the cable, and such winding arrangement is more orderly as evidenced by modeling analysis and experiments), so that the cable can accommodate differences caused by different distances under the dual action of cable reel pulling force and its own weight, allowing the cable routing position to adjust autonomously to the ordered arrangement (not too loose, but not to push the subsequent turn onto the previous turn; this is not done without manual intervention in conventional reels).
When the bidirectional screw rod rotates forwards, the forward thread drives the moving rod to move towards one direction through the nut, and when the moving rod moves from one end to the other end on the bidirectional screw rod, the cable is just wound on the cable drum by one layer.
When the nut reaches the end, if the bidirectional screw rod continues to rotate in the forward direction, the moving rod cannot continue to move forwards, and the nut is driven by the reverse thread at the last position to drive the moving rod to move reversely on the bidirectional screw rod. The cable then follows back on the cable drum and winds another layer. So as to reciprocate.
When the cable reel discharges the cables, the motor drives the cable reel to rotate reversely, the bidirectional screw rod synchronously rotates reversely, the cables are discharged one by one, and the cables are discharged one by one.
The number of the forward threads is one more than that of the reverse threads, so that the number of turns of the odd layers is one more than that of the even layers, and when the moving rod moves to one end of the bidirectional screw rod, the nut can drive the moving rod to automatically and reversely translate.
Further preferably:
the invention can be provided with a rotary chassis, and shore power can be conveniently plugged in the port or starboard of the ship when the port or starboard is leaned against the shore.
The wire coil motor is not provided with a brake for self-locking, so that the phenomena that a cable is broken or a shore power box is damaged due to the rise of water level and the like are avoided;
the shore power and marine diesel generating set power supply system is provided with the change-over switch, so that the accident of short circuit explosion caused by voltage phase surge is avoided.
Has the advantages that:
1. the cable paying-off length is protected, and the cable is prevented from being broken due to the fact that the cable is completely paid off;
2. after the cable is completely wound, the motor automatically stops when safety margin is left, the remote controller is operated to automatically close, and the plug is protected from being damaged by pulling;
3. the cable paying-off is protected in a loosening way, the motor is automatically controlled to rotate reversely to tighten the cable, and mess of the cable of the wire coil is avoided;
4. when the cable normally runs, the controller can automatically control the motor to receive and release the cable through the frequency converter, so that the phenomenon that the cable is too loose and too tight is avoided;
5. the device of the invention occupies less space, and can be used for not only retracting and releasing cables, but also retracting and releasing materials such as ropes, hoses and the like. The cable is particularly suitable for the retraction of ship cables, so that the ship cables are orderly arranged in a small space, are moderate in tightness and are freely retracted.
Drawings
FIG. 1 is a schematic perspective view of the present invention;
FIG. 2 is an axial sectional view of the bidirectional screw of the present invention;
fig. 3 is a schematic view of the cable arrangement position on the cable drum according to the present invention.
In the figures, 1-stent; 2-a rotating shaft; 3-a cable; 4-cable reel; 5-a slide block; 6. 11-a track; 7-cable tail end; 8-a receiving and releasing port; 9-moving the rod; 10-a bidirectional screw rod; 12-sensor a; 13-a drive chain; 14-a controller; 15-an electric motor; 20-positive thread; 30-reverse threading.
Detailed Description
The intelligent ship shore power cable winding and unwinding device shown in fig. 1 is provided with a control mechanism, a winding and unwinding mechanism, a left-right moving mechanism and a support for installing the mechanisms.
The control mechanism controls the movement of the retracting mechanism, and the retracting mechanism provides power for the retracting mechanism and the left-right moving mechanism; the control mechanism is provided with a controller which can control the operation of the following motor in the retraction mechanism; the retraction mechanism is provided with a motor, a transmission chain and a cable reel; the motor can drive the rotating shaft of the cable reel to rotate, and the rotating shaft is connected with the bidirectional screw rod through a transmission chain and drives the bidirectional screw rod to synchronously rotate.
The control mechanism is also provided with a sensor A, the sensor A is positioned near a cable receiving and releasing port on the movable rod, the controller can collect a cable length signal obtained by the sensor A, and the controller controls the motor to automatically stop when the wire is sensed to be completely received.
The left-right moving mechanism is provided with a bidirectional screw rod, a track arranged in parallel with the bidirectional screw rod and a moving rod vertical to the bidirectional screw rod and the moving track; the axial surface of the bidirectional screw rod is provided with forward rotating threads and reverse rotating threads which are arranged in a staggered mode; the moving rod is provided with a fixed nut which is screwed on the bidirectional screw rod, and when the bidirectional screw rod rotates, the moving rod can be caused to move left and right; the moving rod is also provided with a sliding block which is connected with the track in a sliding way; the moving rod is provided with a cable receiving and releasing port through which a cable passes, and when the moving rod moves left and right on the bidirectional screw rod, the cable passing through the receiving and releasing port is driven to move left and right; the cables are orderly arranged, rolled or released on the cable drum under the dual functions of rotation of the cable drum and left-right movement of the moving rod.
When the bidirectional screw rod rotates forwards, the forward thread drives the moving rod to move towards one direction through the nut, and when the moving rod moves from one end to the other end on the bidirectional screw rod, a layer of cable is just wound on the cable drum; when the cable coil is terminated, the moving rod cannot move forwards continuously, the nut is driven by the reverse thread at the last position to drive the moving rod to move reversely on the bidirectional screw rod, and the cable is wound on another layer on the cable coil along with the return.
The pitch between adjacent threads corresponds to the diameter of the cable, and the shift lever shifts substantially one pitch on the bidirectional screw rod when the cable rotates one turn on the cable drum. As shown in fig. 2, the number of forward threads on the bidirectional screw is one more than the number of reverse threads, so that as shown in fig. 3, the number of turns of the odd layers of the cable drum is one more than that of the even layers.
Claims (9)
1. An intelligent ship shore power cable take-up and pay-off device is provided with a control mechanism, a take-up and pay-off mechanism, a left-right moving mechanism and a bracket for mounting the mechanisms; the method is characterized in that:
the control mechanism controls the movement of the retracting mechanism, and the retracting mechanism provides power for the retracting mechanism and the left-right moving mechanism;
the control mechanism is provided with a controller which can control the operation of the following motor in the retraction mechanism;
the retraction mechanism is provided with a motor, a transmission chain and a cable reel; the motor can drive a rotating shaft of the cable reel to rotate, and the rotating shaft is connected with and drives the bidirectional screw rod to synchronously rotate through the transmission chain;
the left-right moving mechanism is provided with a bidirectional screw rod, a track arranged in parallel with the bidirectional screw rod and a moving rod vertical to the bidirectional screw rod and the moving track;
the axial surface of the bidirectional screw rod is provided with forward rotating threads and reverse rotating threads which are arranged in a staggered mode;
the moving rod is provided with a fixed nut which is screwed on the bidirectional screw rod, and when the bidirectional screw rod rotates, the moving rod can be caused to move left and right; the moving rod is also provided with a sliding block which is connected with the track in a sliding way;
the moving rod is provided with a cable receiving and releasing port through which a cable passes, and when the moving rod moves left and right on the bidirectional screw rod, the cable passing through the receiving and releasing port is driven to move left and right; the cables are orderly arranged, rolled or released on the cable drum under the dual functions of rotation of the cable drum and left-right movement of the moving rod.
2. The intelligent retraction device for ship shore power cables of claim 1, wherein:
the control mechanism is also provided with a sensor A, a sensor B or a sensor C, the sensor A, B is positioned near a cable receiving and releasing port on the moving rod, and the sensor C is positioned below the cable drum;
the controller can collect the cable length signals obtained by the sensor A or the sensor B and correspondingly control the rotation state of the motor; when the sensor A senses that the cable is completely received, the controller controls the motor to automatically stop, or when the sensor B senses that the warning line is marked, the controller controls the alarm to give an alarm; or after the sensor C senses the tightness signal of the cable, the controller controls the motor to finely adjust the cable receiving and releasing amount.
3. The intelligent retraction device for ship shore power cables of claim 1, wherein: when the bidirectional screw rod rotates forwards, the forward thread drives the moving rod to move towards one direction through the nut, and when the moving rod moves from one end to the other end on the bidirectional screw rod, a layer of cable is just wound on the cable drum; when the cable coil is terminated, the moving rod cannot move forwards continuously, the nut is driven by the reverse thread at the last position to drive the moving rod to move reversely on the bidirectional screw rod, and the cable is wound on another layer on the cable coil along with the return.
4. The intelligent retraction device for ship shore power cables as claimed in claim 2, wherein:
the sensor C is positioned near the center of the cable reel and below the center point of the connecting line of the center of the bidirectional screw rod.
5. The intelligent retraction device for ship shore power cables according to claim 1 or 3, characterized in that: the rotating speed ratio of the rotating shaft to the bidirectional screw rod is 1: 1.
6. the intelligent retraction device for ship shore power cables according to claim 1 or 3, characterized in that: the pitch between adjacent threads corresponds to the diameter of the cable, and the shift lever shifts substantially one pitch on the bidirectional screw rod when the cable rotates one turn on the cable drum.
7. The intelligent retraction device for ship shore power cables according to claim 5 or 6, wherein: a certain gap is formed between adjacent threads, namely the thread pitch is slightly larger than the diameter of the cable; the number of turns per layer being N, the diameter of the cable being D, the pitch being (N + 1) D/N- (N + 2) D/N.
8. The intelligent retraction device for ship shore power cables of claim 6, wherein: the forward threads are one more than the reverse threads such that the odd layers have one more turn than the even layers.
9. The intelligent retraction device for ship shore power cables according to claim 1, 2 or 3, characterized in that: the rotary chassis is arranged, and shore power can be plugged in when a port or a starboard of the ship leans against the shore.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111223263 | 2021-10-20 | ||
| CN2021112232635 | 2021-10-20 |
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| CN114194956A true CN114194956A (en) | 2022-03-18 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202111585318.7A Pending CN114194956A (en) | 2021-10-20 | 2021-12-23 | Intelligent retraction device for ship shore power cable |
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