CN115557399B - Shipborne speedboat crane and lifting method - Google Patents

Shipborne speedboat crane and lifting method Download PDF

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Publication number
CN115557399B
CN115557399B CN202211401474.8A CN202211401474A CN115557399B CN 115557399 B CN115557399 B CN 115557399B CN 202211401474 A CN202211401474 A CN 202211401474A CN 115557399 B CN115557399 B CN 115557399B
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China
Prior art keywords
lifting
frame
bearing
yacht
wheel
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CN202211401474.8A
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CN115557399A (en
Inventor
侯磊
李文燕
周磊
侯永康
侯林立
张研成
巴忠峰
王振
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Binzhou Polytechnic
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Binzhou Polytechnic
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Publication of CN115557399A publication Critical patent/CN115557399A/en
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
    • B66C23/00—Cranes comprising essentially a beam, boom, or triangular structure acting as a cantilever and mounted for translatory of swinging movements in vertical or horizontal planes or a combination of such movements, e.g. jib-cranes, derricks, tower cranes
    • B66C23/18—Cranes comprising essentially a beam, boom, or triangular structure acting as a cantilever and mounted for translatory of swinging movements in vertical or horizontal planes or a combination of such movements, e.g. jib-cranes, derricks, tower cranes specially adapted for use in particular purposes
    • B66C23/36—Cranes comprising essentially a beam, boom, or triangular structure acting as a cantilever and mounted for translatory of swinging movements in vertical or horizontal planes or a combination of such movements, e.g. jib-cranes, derricks, tower cranes specially adapted for use in particular purposes mounted on road or rail vehicles; Manually-movable jib-cranes for use in workshops; Floating cranes
    • B66C23/52—Floating cranes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
    • B66C23/00—Cranes comprising essentially a beam, boom, or triangular structure acting as a cantilever and mounted for translatory of swinging movements in vertical or horizontal planes or a combination of such movements, e.g. jib-cranes, derricks, tower cranes
    • B66C23/62—Constructional features or details
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
    • B66C23/00—Cranes comprising essentially a beam, boom, or triangular structure acting as a cantilever and mounted for translatory of swinging movements in vertical or horizontal planes or a combination of such movements, e.g. jib-cranes, derricks, tower cranes
    • B66C23/62—Constructional features or details
    • B66C23/72—Counterweights or supports for balancing lifting couples
    • B66C23/78—Supports, e.g. outriggers, for mobile cranes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
    • B66C23/00—Cranes comprising essentially a beam, boom, or triangular structure acting as a cantilever and mounted for translatory of swinging movements in vertical or horizontal planes or a combination of such movements, e.g. jib-cranes, derricks, tower cranes
    • B66C23/62—Constructional features or details
    • B66C23/82—Luffing gear
    • B66C23/821—Bracing equipment for booms
    • B66C23/823—Bracing equipment acting in vertical direction
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
    • B66C23/00—Cranes comprising essentially a beam, boom, or triangular structure acting as a cantilever and mounted for translatory of swinging movements in vertical or horizontal planes or a combination of such movements, e.g. jib-cranes, derricks, tower cranes
    • B66C23/88—Safety gear

Abstract

The invention relates to the technical field of marine equipment, in particular to a shipborne yacht crane and a lifting method.

Description

Shipborne speedboat crane and lifting method
Technical Field
The invention relates to the technical field of cranes, in particular to a ship-borne yacht crane and a lifting method.
Background
Ocean development has very practical significance for resource exploitation in China, and if comprehensive detection and timely guarantee measures are taken for the existing ocean energy and resources at present, the ocean development can generate great promotion effect on the economic development of China. The development and utilization of oceans requires the use of large vessels such as large exploration vessels, cargo ships, large construction ships, etc., which typically require the release of yachts in designated areas for specific marine operations.
In the prior art, an inflatable kayak is directly thrown into water, but the inflatable kayak is still required to jump into water to enter the kayak after being inflated by itself when being placed into water, and the kayak is difficult to operate when certain exploration equipment and a detection device are required to be carried to enter the kayak.
Disclosure of Invention
Aiming at the defects of the prior art, the invention provides a ship-borne yacht crane and a lifting method, the yacht can be stably released from a clamping plate of a large ship to the water surface through the ship-borne crane, so that personnel can conveniently enter the yacht, and equipment, materials and the like can be more conveniently carried on the yacht.
In order to achieve the purpose, the invention provides the following technical scheme:
a ship-borne yacht crane comprises a hoisting mechanism, a first lifting frame, a second lifting frame, a lifting portal frame, a cable, a yacht and a rolling frame, wherein the first lifting frame and the second lifting frame are arranged at the outer edge of a deck of a large ship, and the lifting portal frame is connected between the first lifting frame and the second lifting frame; a hoisting mechanism is further arranged on one side of the first lifting frame and one side of the second lifting frame, and a cable wound on the hoisting mechanism is connected with the speedboat after passing through the lifting portal; the lifting gantry comprises a first supporting column, a lifting cross beam, a second supporting column, a second lifting wheel and a first lifting wheel, the top ends of the first supporting column and the second supporting column are fixedly connected with the two ends of the lifting cross beam, and the second lifting wheel and the first lifting wheel are arranged on the lifting cross beam at intervals; the first lifting frame and the second lifting frame are identical in structure and respectively comprise a bottom plate base, a lifting platform, a bearing part, a scissor fork support and a translation mechanism, a first support column of the lifting portal frame is vertically fixed on the bearing part of the first lifting frame, and a second support column of the lifting portal frame is vertically fixed on the bearing part of the second lifting frame; one end of the bearing part is in sliding fit with the lifting platform, one end of the bearing part is driven to slide on the lifting platform through a translation mechanism, and the other end of the bearing part is supported on the scissor bracket in a sliding manner; the two groups of cables are provided, one ends of the two groups of cables are fixedly connected with the speedboat, then respectively wind around the second lifting wheel and the first lifting wheel, and are respectively wound on the winding mechanism; the bearing part is driven by the cooperation of the translation mechanism and the scissor bracket to change the inclination angle, so that the pitching angles of the first supporting column and the second supporting column are changed, and the yacht is moved to the outer side of a deck of a large ship and suspended.
Further, the hoisting mechanism comprises a hoisting bracket, a first vertical guide wheel, a second vertical guide wheel, a hoisting motor, a first winding drum, a second transposition wheel and a first transposition wheel; the winch support is fixed on a deck of a large ship, a first vertical guide wheel and a second vertical guide wheel are respectively arranged at the upper part of the winch support through a rotating shaft, and a second transposition wheel and a first transposition wheel are respectively arranged at the lower part of the winch support through a rotating shaft; the first winding drum and the second winding drum are coaxially and adjacently arranged, and are driven to synchronously rotate by the winding motor; one end of one of the two groups of cables is fixedly connected with the yacht, and then the yacht sequentially rounds a first lifting wheel, a first vertical guide wheel and a first transfer wheel and is wound on the first reel; one end of the other of the two groups of mooring ropes is fixedly connected with the yacht, and then the yacht sequentially rounds a second lifting wheel, a second vertical guide wheel and a second transposition wheel and is wound on the second winding drum; the first drum is wound around the cable in a direction opposite to a direction in which the second drum is wound around the cable.
Further, the fork shearing bracket comprises a first fork shearing frame and a second fork shearing frame, the lower ends of the first fork shearing frame and the second fork shearing frame are connected with the base plate base, and the upper ends of the first fork shearing frame and the second fork shearing frame are connected with the lifting platform; the first fork shearing frame and the second fork shearing frame have the same structure and respectively comprise a first lower connecting rod, a second lower connecting rod, a first upper connecting rod, a second upper connecting rod, a first short rod and a second short rod; the lower ends of the first lower connecting rod and the second lower connecting rod are respectively hinged with the base plate base, and the upper ends of the first upper connecting rod and the second upper connecting rod are respectively hinged with the lifting platform; the upper end of the first lower connecting rod and the lower end of the first upper connecting rod are hinged to the first end of the bearing linkage shaft; the upper end of the second lower connecting rod and the lower end of the second upper connecting rod are hinged to the first end of the side linkage shaft together; the upper end of the first short rod is hinged to the first end of the side linkage shaft, and the lower end of the first short rod is hinged to the middle of the first lower connecting rod; the lower end of the second short rod is hinged to the first end of the bearing linkage shaft, and the upper end of the second short rod is hinged to the middle of the second upper connecting rod; the first end of the bearing linkage shaft is hinged with the first fork shearing frame, and the second end of the bearing linkage shaft is hinged with the corresponding position of the second fork shearing frame; the first end of the side linkage shaft is hinged with the first fork shearing frame, and the second end of the side linkage shaft is hinged with the corresponding position of the second fork shearing frame; and two ends of the driving cylinder are respectively connected with the bearing linkage shaft and the side linkage shaft.
Further, the translation mechanism comprises a translation motor, a driving gear, a first reduction gear, a first screw, a first nut seat, a second screw, a second reduction gear and a connecting shaft; the lifting platform comprises a U-shaped base plate, a second sliding rail and a first sliding rail, wherein the second sliding rail and the first sliding rail are arranged on two sides of an opening of the U-shaped base plate in parallel; a translation motor is arranged at the closed end of the U-shaped substrate, a driving gear is arranged at the output end of the translation motor, and a first reduction gear and a second reduction gear are respectively connected to two sides of the driving gear in a transmission manner; the first reduction gear is provided with a first screw, the second reduction gear is provided with a second screw, the first screw is rotatably arranged on one side of the first slide rail, and the second screw is rotatably arranged on one side of the second slide rail; the first screw is connected with a first nut seat through threads, and the first nut seat is slidably borne on the first slide rail; the second screw rod is connected with a second nut seat through threads, and the second nut seat is slidably borne on the second slide rail; and a connecting shaft is fixedly connected between the first nut seat and the second nut seat.
Furthermore, the bearing part comprises a bearing substrate, a bearing slide rail and limiting rings, one end of the bearing substrate is rotatably connected with the connecting shaft through a bearing, the lower side of the other end of the bearing substrate is provided with the two bearing slide rails which are arranged in parallel, the bearing linkage shaft is slidably arranged in the bearing slide rails, the bearing slide rails are provided with the two limiting rings, and the two limiting rings are located on two sides of the bearing slide rails.
Furthermore, the rolling frame comprises a first L-shaped support, a rotating roller and a second L-shaped support, the first L-shaped support and the second L-shaped support are arranged between the first lifting frame and the second lifting frame side by side, a plurality of rotating rollers are rotatably arranged between the first L-shaped support and the second L-shaped support, and the rotating rollers cover a deck area between the first lifting frame and the second lifting frame and a part of an area of the ship side wall adjacent to the deck area.
The invention relates to a yacht lifting method, which comprises the following steps:
step a, a driving cylinder is started, a first lifting frame and a second lifting frame are controlled to ascend synchronously, a first fork shearing frame and a second fork shearing frame are unfolded, a bearing universal driving shaft slides in a bearing slide rail, the inclination angle of a bearing part is increased, the pitching angles of a first supporting column and a second supporting column are further decreased, and when a lifting cross beam ascends synchronously along with the first lifting frame and the second lifting frame, the pitching angles of the first supporting column and the second supporting column are decreased, so that a speedboat connected with the lower portion of the lifting cross beam through a cable ascends for a certain distance and then moves laterally;
b, starting a translation motor, and driving a connecting shaft to translate towards the outer side of the opening of the U-shaped substrate through the transmission of a gear mechanism, the first screw rod, the second screw rod, the first nut seat and the second nut seat so as to further rotate the bearing substrate on the connecting shaft, so that the pitching angles of the first supporting column and the second supporting column are reduced, and the lifting beam and the yacht below the lifting beam further move towards the outer side of the deck;
c, starting a winch motor to enable the yacht to move downwards and be flush with the deck of the large ship, and simultaneously controlling a translation motor to work and adjusting the gap between the yacht and the edge of the deck to achieve a safe gap range so that personnel and equipment can enter the yacht conveniently;
and d, controlling the winch motor to enable the speed boat to continuously descend to the water surface, and realizing the transfer of the speed boat from the deck of the large ship to the water surface.
And step c, controlling the translation motor to work, realizing the minimum gap between the speed boat and the edge of the deck, and guiding and supporting the speed boat through the rotating rollers on the side surface of the deck to realize the downward movement of the speed boat attached to the side surface of the deck.
Compared with the prior art, the invention provides a ship-borne yacht crane and a lifting method, and the ship-borne yacht crane has the following beneficial effects:
1. the first lifting frame and the second lifting frame can change the inclination angle of the bearing part while lifting, so that the pitch angle of the lifting gantry is changed, the yacht placed on a large ship deck is lifted and translated, the motion trail of the yacht after lifting and during translation is more stable, and personnel can climb the yacht and the equipment can be conveniently carried; after the yacht is moved to the outside of the deck, the yacht is placed on the water surface through the hoisting mechanism.
2. The first lifting frame and the second lifting frame comprise a plurality of connecting rods, so that the lifting platform can move forwards while lifting, and the lifting gantry on the lifting platform can move forwards more conveniently; meanwhile, compared with a scissor lifting platform with a sliding rail structure in the prior art, the connecting rod structures of the first lifting frame and the second lifting frame are connected with the lifting platform and the base plate through the hinged seats, so that the first lifting frame and the second lifting frame can bear stronger transverse tilting force when the lifting portal frame at the top of the lifting platform receives the transverse tilting force.
3. The translation mechanism can more accurately control the forward movement distance of the lifting beam in the rear-section stroke, so that the control on the distance between the yacht and the edge of the deck of the large ship is more convenient and faster, and the boarding safety of personnel can be further ensured.
Drawings
Fig. 1 is a schematic view of the overall structure of a boat-mounted yacht crane of the present invention;
FIG. 2 is a schematic structural view of the lifting state of the yacht crane of the present invention;
FIG. 3 is a schematic view of the structure of the lift table of the present invention;
FIG. 4 is a schematic top view of the lift table of the present invention;
FIG. 5 is a front view of the lift table of the present invention;
FIG. 6 is a side schematic view of the lift table of the present invention;
FIG. 7 is a schematic view of the yacht crane of the present invention fully deployed;
fig. 8 is a schematic structural view of a hoisting mechanism of the present invention;
in the figure: the lifting device comprises a hoisting mechanism 1, a hoisting bracket 11, a first vertical guide wheel 12, a second vertical guide wheel 13, a hoisting motor 14, a first reel 15, a second reel 16, a second transposition wheel 17, a first transposition wheel 18, a first lifting frame 2, a second lifting frame 3, a bottom plate base 31, a lifting platform 32, a U-shaped base plate 321, a second sliding rail 322, a first sliding rail 323, a bearing part 33, a bearing base plate 331, a bearing sliding rail 332, a limiting ring 333, a first scissor bracket 34, a first lower connecting rod 341, a second lower connecting rod 342, a first upper connecting rod 343, a second upper connecting rod 344, a first short rod 345, a second short rod 346, a driving cylinder 347, a side linkage shaft 348, a bearing linkage shaft 349, a translation mechanism 35, a translation motor 351, a driving gear 352, a first reduction gear 353, a first screw rod 354, a first nut seat 355, a second nut seat 356, a second reduction screw rod 357, a second reduction gear 358, a connecting shaft 359, a second scissor 36, a lifting bracket 4, a first support column 41, a lifting column 42, a second support column 44, a second support column 44, a lifting wheel support 72, a first lifting bracket 7, a lifting fork frame 71, a first lifting fork frame L-shaped cross beam 71, a first lifting rope 71, a second lifting rope 71 and a second lifting fork shaped cross beam 7.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be obtained by a person skilled in the art without making any creative effort based on the embodiments in the present invention, belong to the protection scope of the present invention.
The invention is described in detail below according to the attached drawings 1-8, the boat-mounted yacht crane of the invention comprises a hoisting mechanism 1, a first lifting frame 2, a second lifting frame 3, a lifting portal frame 4, a cable 5, a yacht 6 and a rolling frame 7, wherein the first lifting frame 2 and the second lifting frame 3 are arranged at the outer edge of a deck of a large ship, and the lifting portal frame 4 is connected between the first lifting frame 2 and the second lifting frame 3; a hoisting mechanism 1 is further arranged on one side of the first lifting frame 2 and one side of the second lifting frame 3, and a cable 5 wound on the hoisting mechanism 1 is connected with a speedboat 6 after passing through a lifting portal frame 4; the lifting gantry 4 comprises a first supporting column 41, a lifting beam 42, a second supporting column 43, a second lifting wheel 44 and a first lifting wheel 45, the top ends of the first supporting column 41 and the second supporting column 43 are fixedly connected with the two ends of the lifting beam 42, and the lifting beam 42 is provided with the second lifting wheel 44 and the first lifting wheel 45 at intervals; the first lifting frame 2 and the second lifting frame 3 have the same structure and respectively comprise a bottom plate base 31, a lifting platform 32, a bearing part 33, a scissor fork support and a translation mechanism 35, wherein a first support column 41 of the lifting portal frame 4 is vertically fixed on the bearing part 33 of the second lifting frame 3, and a second support column 43 of the lifting portal frame 4 is vertically fixed on the bearing part 33 of the first lifting frame 2; one end of the bearing part 33 is in sliding fit with the lifting table 32, one end of the bearing part 33 is driven to slide on the lifting table 32 through a translation mechanism 35, and the other end of the bearing part 33 is supported on the scissor bracket in a sliding manner; the two groups of cables 5 are provided, one ends of the two groups of cables 5 are fixedly connected with the yacht 6, and then respectively wind around the second lifting wheel 44 and the first lifting wheel 45 and then are respectively wound on the winding mechanism 1; the bearing part 33 is driven by the cooperation of the translation mechanism 35 and the scissor bracket to change the inclination angle, so that the pitching angles of the first support column 41 and the second support column 43 are changed, and the yacht 6 is moved to the outer side of the deck of the large ship and suspended.
Further, the hoisting mechanism 1 comprises a hoisting bracket 11, a first vertical guide wheel 12, a second vertical guide wheel 13, a hoisting motor 14, a first reel 15, a second reel 16, a second transposition wheel 17 and a first transposition wheel 18; the hoisting support 11 is fixed on a deck of a large ship, a first vertical guide wheel 12 and a second vertical guide wheel 13 are respectively arranged at the upper part of the hoisting support 11 through a rotating shaft, and a second transposition wheel 17 and a first transposition wheel 18 are respectively arranged at the lower part of the hoisting support 11 through a rotating shaft; the first winding drum 15 and the second winding drum 16 are coaxial and are arranged adjacently, and the first winding drum 15 and the second winding drum 16 are driven to synchronously rotate by the winding motor 14; one end of one of the two groups of cables 5 is fixedly connected with the yacht 6, and then the cable is wound on the first reel 15 after sequentially winding around the first lifting wheel 45, the first vertical guide wheel 12 and the first transfer wheel 18; one end of the other of the two groups of the cables 5 is fixedly connected with the yacht 6, and then the other of the two groups of the cables 5 sequentially rounds a second lifting wheel 44, a second vertical guide wheel 13 and a second transposition wheel 17 and is wound on the second winding drum 16; the first reel 15 winds the cable 5 in a direction opposite to the direction in which the second reel 16 winds the cable 5.
Further, the scissor bracket comprises a first scissor bracket 34 and a second scissor bracket 36, the lower ends of the first scissor bracket 34 and the second scissor bracket 36 are connected with the base plate 31, and the upper ends of the first scissor bracket 34 and the second scissor bracket 36 are connected with the lifting platform 32; the first fork arm 34 and the second fork arm 36 have the same structure, and each fork arm comprises a first lower connecting rod 341, a second lower connecting rod 342, a first upper connecting rod 343, a second upper connecting rod 344, a first short rod 345 and a second short rod 346; the lower ends of the first lower connecting rod 341 and the second lower connecting rod 342 are hinged to the base plate base 31, and the upper ends of the first upper connecting rod 343 and the second upper connecting rod 344 are hinged to the lifting platform 32; the upper end of the first lower connecting rod 341 and the lower end of the first upper connecting rod 343 are hinged to the first end of a bearing linkage shaft 349; the upper end of the second lower connecting rod 342 and the lower end of the second upper connecting rod 344 are jointly hinged at a first end of a side linkage shaft 348; the upper end of the first short rod 345 is hinged at the first end of the side linkage shaft 348, and the lower end of the first short rod 345 is hinged at the middle part of the first lower connecting rod 341; the lower end of the second short rod 346 is hinged at the first end of the bearing linkage shaft 349, and the upper end of the second short rod 346 is hinged at the middle part of the second upper connecting rod 344; a first end of the bearing linkage shaft 349 is hinged with the first fork shearing frame 34, and a second end of the bearing linkage shaft 349 is hinged with the corresponding position of the second fork shearing frame 36; a first end of the side linkage shaft 348 is hinged with the first fork shearing frame 34, and a second end of the side linkage shaft 348 is hinged with the corresponding position of the second fork shearing frame 36; two ends of the driving cylinder 347 are respectively connected with the bearing linkage shaft 349 and the side linkage shaft 348.
Further, the translation mechanism 35 includes a translation motor 351, a driving gear 352, a first reduction gear 353, a first screw 354, a first nut seat 355, a second nut seat 356, a second screw 357, a second reduction gear 358, and a connecting shaft 359; the lifting platform 32 comprises a U-shaped base plate 321, a second slide rail 322 and a first slide rail 323, wherein the second slide rail 322 and the first slide rail 323 are arranged on two sides of an opening of the U-shaped base plate 321 in parallel; a translation motor 351 is arranged at the closed end of the U-shaped substrate 321, a driving gear 352 is arranged at the output end of the translation motor 351, and a first reduction gear 353 and a second reduction gear 358 are respectively connected to two sides of the driving gear 352 in a transmission manner; the first reduction gear 353 is provided with a first screw 354, the second reduction gear 358 is provided with a second screw 357, the first screw 354 is rotatably disposed on one side of the first slide rail 323, and the second screw 357 is rotatably disposed on one side of the second slide rail 322; a first nut seat 355 is connected to the first screw 354 through threads, and the first nut seat 355 is slidably carried on the first slide rail 323; a second nut seat 356 is connected to the second screw 357 through a screw, and the second nut seat 356 is slidably carried on the second slide rail 322; a connecting shaft 359 is fixedly connected between the first nut seat 355 and the second nut seat 356.
Further, the bearing part 33 includes a bearing substrate 331, a bearing slide rail 332 and a limit ring 333, one end of the bearing substrate 331 is connected to the connecting shaft 359 in a rotatable manner through a bearing, the lower side of the other end of the bearing substrate 331 is provided with two bearing slide rails 332 arranged in parallel, the bearing linkage shaft 349 is slidably arranged in the bearing slide rails 332, the bearing slide rails 332 are provided with two limit rings 333, and the two limit rings 333 are located on two sides of the bearing slide rails 332.
Further, the rolling frame 7 comprises a first L-shaped support 71, a rotating roller 72 and a second L-shaped support 73, the first L-shaped support 71 and the second L-shaped support 73 are arranged between the first lifting frame 2 and the second lifting frame 3 side by side, a plurality of rotating rollers 72 are rotatably arranged between the first L-shaped support 71 and the second L-shaped support 73, and the rotating rollers 72 cover a deck area between the first lifting frame 2 and the second lifting frame 3 and a partial area of the ship side wall adjacent to the deck area.
The working process of the invention realizes the lifting of the speedboat by the following steps:
step a, a driving cylinder 347 is started, the first lifting frame 2 and the second lifting frame 3 are controlled to ascend synchronously, the first scissor frame 34 and the second scissor frame 36 are unfolded, the bearing linkage shaft 349 slides in the bearing slide rail 332, the inclination angle of the bearing part 33 is increased, the pitching angles of the first supporting column 41 and the second supporting column 43 are reduced, and when the lifting cross beam 42 ascends synchronously along with the first lifting frame 2 and the second lifting frame 3, the pitching angles of the first supporting column 41 and the second supporting column 43 are reduced, so that the yacht 6 connected through the cable 5 below the lifting cross beam 42 ascends for a certain distance and then moves laterally;
step b, starting the translation motor 351, and driving the connecting shaft 359 to translate towards the outer side of the opening of the U-shaped base plate 321 through the transmission of the gear mechanism, the first screw rod 354, the second screw rod 357, the first nut seat 355 and the second nut seat 356, so as to further rotate the bearing base plate 331 on the connecting shaft 359, thereby reducing the pitch angles of the first supporting column 41 and the second supporting column 43, and further moving the lifting beam 42 and the yacht 6 below the lifting beam 42 to the outer side of the deck;
c, starting the hoisting motor 14 to enable the yacht 6 to move downwards and be flush with the deck of the large ship, and simultaneously controlling the translation motor 351 to work and adjusting the gap between the yacht 6 and the edge of the deck to achieve a safe gap range so that personnel and equipment can enter the yacht 6 conveniently;
and d, controlling the winch motor 14 to enable the speed boat 6 to continuously descend to the water surface, and realizing the transfer of the speed boat 6 from the deck of the large ship to the water surface.
And the step c further comprises the steps of controlling the translation motor 351 to work, realizing the minimum gap between the speed boat 6 and the edge of the deck, guiding and supporting the speed boat 6 through the rotating roller 72 on the side surface of the deck, and realizing the downward movement of the speed boat 6 attached to the side surface of the deck.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims (3)

1. The utility model provides a ship-borne yacht hoist, includes hoist mechanism (1), first crane (2), second crane (3), promotes portal (4), hawser (5), yacht (6) and roll frame (7), its characterized in that:
the first lifting frame (2) and the second lifting frame (3) are arranged on the outer edge of a deck of the large ship, and a lifting portal frame (4) is connected between the first lifting frame (2) and the second lifting frame (3);
one side of the first lifting frame (2) and one side of the second lifting frame (3) are also provided with a hoisting mechanism (1), and a cable (5) wound on the hoisting mechanism (1) is connected with a yacht (6) after passing through a lifting portal frame (4);
the lifting gantry (4) comprises a first supporting column (41), a lifting beam (42), a second supporting column (43), a second lifting wheel (44) and a first lifting wheel (45), the top ends of the first supporting column (41) and the second supporting column (43) are fixedly connected with the two ends of the lifting beam (42), and the lifting beam (42) is provided with the second lifting wheel (44) and the first lifting wheel (45) at intervals;
the first lifting frame (2) and the second lifting frame (3) are identical in structure and respectively comprise a bottom plate base (31), a lifting platform (32), a bearing part (33), a scissor fork support and a translation mechanism (35), a first support column (41) of the lifting portal frame (4) is vertically fixed on the bearing part (33) of the second lifting frame (3), and a second support column (43) of the lifting portal frame (4) is vertically fixed on the bearing part (33) of the first lifting frame (2);
one end of the bearing part (33) is in sliding fit with the lifting platform (32), one end of the bearing part (33) is driven to slide on the lifting platform (32) through a translation mechanism (35), and the other end of the bearing part (33) is supported on the scissor bracket in a sliding manner;
the two groups of mooring ropes (5) are provided, one ends of the two groups of mooring ropes (5) are fixedly connected with the yacht (6), and then respectively wind around the second lifting wheel (44) and the first lifting wheel (45) and are respectively wound on the winding mechanism (1);
the bearing part (33) is driven by the cooperation of the translation mechanism (35) and the scissor bracket to change the inclination angle, so that the pitching angles of the first supporting column (41) and the second supporting column (43) are changed, and the yacht (6) is moved to the outer side of a deck of a large ship and suspended;
the hoisting mechanism (1) comprises a hoisting support (11), a first vertical guide wheel (12), a second vertical guide wheel (13), a hoisting motor (14), a first winding drum (15), a second winding drum (16), a second transposition wheel (17) and a first transposition wheel (18);
the winch support (11) is fixed on a deck of a large ship, a first vertical guide wheel (12) and a second vertical guide wheel (13) are respectively arranged at the upper part of the winch support (11) through a rotating shaft, and a second transposition wheel (17) and a first transposition wheel (18) are respectively arranged at the lower part of the winch support (11) through a rotating shaft;
the first winding drum (15) and the second winding drum (16) are coaxially and adjacently arranged, and the first winding drum (15) and the second winding drum (16) are driven to synchronously rotate by the winding motor (14);
one end of one of the two groups of mooring ropes (5) is fixedly connected with the yacht (6), and then the mooring ropes wind around the first reel (15) after sequentially passing around the first lifting wheel (45), the first vertical guide wheel (12) and the first transfer wheel (18);
one end of the other of the two groups of mooring ropes (5) is fixedly connected with the yacht (6), and then the other mooring rope sequentially rounds a second lifting wheel (44), a second vertical guide wheel (13) and a second transposition wheel (17) and is wound on the second winding drum (16);
the first reel (15) is wound around the cable (5) in a direction opposite to the direction in which the second reel (16) is wound around the cable (5);
the scissor bracket comprises a first scissor bracket (34) and a second scissor bracket (36), the lower ends of the first scissor bracket (34) and the second scissor bracket (36) are connected with the base plate (31), and the upper ends of the first scissor bracket (34) and the second scissor bracket (36) are connected with the lifting platform (32);
the first fork shearing frame (34) and the second fork shearing frame (36) are identical in structure and respectively comprise a first lower connecting rod (341), a second lower connecting rod (342), a first upper connecting rod (343), a second upper connecting rod (344), a first short rod (345) and a second short rod (346);
the lower ends of the first lower connecting rod (341) and the second lower connecting rod (342) are respectively hinged with the bottom plate base (31), and the upper ends of the first upper connecting rod (343) and the second upper connecting rod (344) are respectively hinged with the lifting platform (32);
the upper end of the first lower connecting rod (341) and the lower end of the first upper connecting rod (343) are jointly hinged to a first end of a bearing linkage shaft (349);
the upper end of the second lower connecting rod (342) and the lower end of the second upper connecting rod (344) are jointly hinged to the first end of the side universal driving shaft (348);
the upper end of the first short rod (345) is hinged at the first end of the side linkage shaft (348), and the lower end of the first short rod (345) is hinged at the middle part of the first lower connecting rod (341);
the lower end of the second short rod (346) is hinged at the first end of the bearing linkage shaft (349), and the upper end of the second short rod (346) is hinged at the middle part of the second upper connecting rod (344);
the first end of the bearing linkage shaft (349) is hinged with a first fork shearing frame (34), and the second end of the bearing linkage shaft (349) is hinged with the corresponding position of a second fork shearing frame (36);
the first end of the side linkage shaft (348) is hinged with the first fork shearing frame (34), and the second end of the side linkage shaft (348) is hinged with the corresponding position of the second fork shearing frame (36);
two ends of the driving cylinder (347) are respectively connected with the bearing linkage shaft (349) and the side linkage shaft (348);
the translation mechanism (35) comprises a translation motor (351), a driving gear (352), a first reduction gear (353), a first screw rod (354), a first nut seat (355), a second nut seat (356), a second screw rod (357), a second reduction gear (358) and a connecting shaft (359);
the lifting platform (32) comprises a U-shaped base plate (321), a second sliding rail (322) and a first sliding rail (323), wherein the second sliding rail (322) and the first sliding rail (323) are arranged on two sides of an opening of the U-shaped base plate (321) in parallel;
a translation motor (351) is arranged at the closed end of the U-shaped substrate (321), a driving gear (352) is arranged at the output end of the translation motor (351), and a first reduction gear (353) and a second reduction gear (358) are respectively connected to two sides of the driving gear (352) in a transmission manner;
a first screw (354) is arranged on the first reduction gear (353), a second screw (357) is arranged on the second reduction gear (358), the first screw (354) is rotatably arranged on one side of the first slide rail (323), and the second screw (357) is rotatably arranged on one side of the second slide rail (322);
a first nut seat (355) is connected to the first screw rod (354) through threads, and the first nut seat (355) is slidably carried on the first sliding rail (323);
a second nut seat (356) is connected to the second screw rod (357) through a thread, and the second nut seat (356) is slidably carried on the second slide rail (322);
a connecting shaft (359) is fixedly connected between the first nut seat (355) and the second nut seat (356);
the bearing part (33) comprises a bearing substrate (331), a bearing slide rail (332) and limiting rings (333), one end of the bearing substrate (331) is rotatably connected with the connecting shaft (359) through a bearing, two bearing slide rails (332) which are arranged in parallel are arranged on the lower side of the other end of the bearing substrate (331), the bearing linkage shaft (349) is slidably arranged in the bearing slide rails (332), two limiting rings (333) are arranged on the bearing slide rails (332), and the two limiting rings (333) are positioned on two sides of the bearing slide rails (332);
the rolling frame (7) comprises a first L-shaped support (71), a rotating roller (72) and a second L-shaped support (73), the first L-shaped support (71) and the second L-shaped support (73) are arranged between the first lifting frame (2) and the second lifting frame (3) side by side, a plurality of rotating rollers (72) are rotatably arranged between the first L-shaped support (71) and the second L-shaped support (73), and the rotating rollers (72) cover a deck area between the first lifting frame (2) and the second lifting frame (3) and a partial area of an adjacent ship side wall of the deck area.
2. A method of lifting a yacht using the on-board yacht crane of claim 1, comprising the steps of:
step a, a driving cylinder (347) is started, the first lifting frame (2) and the second lifting frame (3) are controlled to ascend synchronously, the first scissor frame (34) and the second scissor frame (36) are unfolded, the bearing linkage shaft (349) slides in the bearing slide rail (332), the inclination angle of the bearing part (33) is increased, the pitch angles of the first supporting column (41) and the second supporting column (43) are reduced, and when the lifting cross beam (42) ascends synchronously along with the first lifting frame (2) and the second lifting frame (3), the pitch angles of the first supporting column (41) and the second supporting column (43) are reduced, so that the speedboat (6) connected with the lower portion of the lifting cross beam (42) through a cable (5) ascends for a certain distance and then moves laterally;
step b, a translation motor (351) is started, and through transmission of a gear mechanism, a first screw rod (354), a second screw rod (357), a first nut seat (355) and a second nut seat (356), a connecting shaft (359) is driven to translate towards the outer side of an opening of a U-shaped base plate (321), further rotation of a bearing base plate (331) on the connecting shaft (359) is achieved, so that the pitching angles of a first supporting column (41) and a second supporting column (43) are reduced, and the lifting beam (42) and the yacht (6) below the lifting beam further move towards the outer side of a deck;
c, starting a winch motor (14), enabling the speed boat (6) to move downwards and be flush with the deck of the large-scale ship, simultaneously controlling a translation motor (351) to work, and adjusting the gap between the speed boat (6) and the edge of the deck to achieve a safe gap range, so that personnel and equipment can enter the speed boat (6);
and d, controlling the winch motor (14) to enable the speed boat (6) to continuously descend to the water surface, and realizing the transfer of the speed boat (6) from the deck of the large ship to the water surface.
3. The yacht lifting method of claim 2, wherein the step c further comprises:
the translation motor (351) is controlled to work, the minimum gap between the yacht (6) and the edge of the deck is achieved, the yacht (6) is guided and supported by the rotating rollers (72) on the side face of the deck, and the yacht (6) is attached to the side face of the deck and moves downwards.
CN202211401474.8A 2022-11-10 2022-11-10 Shipborne speedboat crane and lifting method Active CN115557399B (en)

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5951227A (en) * 1998-07-28 1999-09-14 J. Ray Mcdermott, S.A. Deep water lowering apparatus
CN105621272A (en) * 2014-11-04 2016-06-01 无锡晟欧船舶设备有限公司 Boat crane
CN208054767U (en) * 2017-12-15 2018-11-06 广州船舶及海洋工程设计研究院 A kind of ship topside lifting gear
CN108190718A (en) * 2017-12-22 2018-06-22 国家海洋局第海洋研究所 A kind of multi-functional ship combination hydraulic A type frame
CN210064981U (en) * 2019-04-08 2020-02-14 无锡晟欧船舶设备有限公司 Telescopic single-arm boat and raft hanging bracket and crane
CN210000504U (en) * 2019-05-07 2020-01-31 佛山市南海珠峰造船有限公司 yacht parking device
CN210236889U (en) * 2019-06-13 2020-04-03 无锡市华海船用设备有限公司 Davit boat raft gallows
CN210825189U (en) * 2019-06-20 2020-06-23 无锡市华海船用设备有限公司 Hydraulic crane with rescue boat crane
NL2023375B1 (en) * 2019-06-25 2021-02-01 Kenz Figee Group B V Vessel with hoisting device

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