CN113651247A

CN113651247A - Gantry hoisting device

Info

Publication number: CN113651247A
Application number: CN202110979228.XA
Authority: CN
Inventors: 潘海伟; 潘学剑; 王叶青; 袁浩; 潘雄; 潘海杰; 李旭光; 肖洋; 王先表; 朱志松; 王海平; 崔吉
Original assignee: Taizhou Wuzhou Shipbuilding Industry Co ltd
Current assignee: Taizhou Wuzhou Shipbuilding Industry Co ltd
Priority date: 2021-08-25
Filing date: 2021-08-25
Publication date: 2021-11-16
Anticipated expiration: 2041-08-25
Also published as: CN113651247B

Abstract

The invention provides a gantry hoisting device which comprises at least two side-by-side docks, wherein each dock is provided with a hoisting assembly; the hoisting assembly comprises two crane rails arranged on the slipway in parallel and a hoisting machine connected to the two crane rails in a sliding manner; a transition track is arranged between two adjacent berths, and two ends of the transition track respectively extend into the two berths and are crossed with two crane tracks in the berths; the transition assembly is arranged at the bottom of the crane and used for driving the crane to move along the transition track. Through removing the lifting machine on the adjacent berth for replace renting heavy crawler crane, it is lower to place and ground requirement to have, uses comparatively convenient advantage, moreover, uses above-mentioned mode to be used for accomplishing the equipment of jar body and hull, only needs the cost of labor of expenditure response, does not need the hire cost of heavy crawler crane, can reduce the manufacturing cost of liquefied petroleum gas ship in very big degree.

Description

Gantry hoisting device

Technical Field

The invention relates to a gantry crane, in particular to a gantry hoisting device.

Background

The liquefied petroleum gas ship, abbreviated as LPG ship, is a ship dedicated for transporting liquefied petroleum gas. In order to shorten the production cycle of the liquefied petroleum gas carrier, the hull structure is generally constructed separately from the tank structure. And after the hull structure and the tank structure are built, renting a heavy crawler crane to hoist the tank to the hull for installation. However, the method not only needs a large enough field, but also has high requirements on the foundation of a hoisting area, and is inconvenient to use.

Disclosure of Invention

In view of this, the present invention provides a gantry crane, which has the advantages of low requirements for site and foundation and convenient use.

In order to solve the technical problems, the technical scheme of the invention is as follows: a gantry hoisting device comprises at least two side-by-side docks, wherein each dock is provided with a hoisting assembly; the hoisting assembly comprises two crane rails arranged on the slipway in parallel and a crane connected to the two crane rails in a sliding manner; a transition track is arranged between two adjacent shipways, and two ends of the transition track respectively extend into the two shipways and are crossed with the two crane tracks in the shipways; the transition assembly is arranged at the bottom of the crane and used for driving the crane to move along the transition track.

Through the technical scheme, for the convenience of description, two adjacent berths are named as a first berth and a second berth respectively, when a tank body is hoisted to the inside of a ship body in the first berth, the crane on the second berth is controlled to move along the crane rail until the crane is opposite to the transition rail between the first berth and the second berth, then the crane is controlled to move along the transition rail through the transition assembly until the crane moves to the first berth, and pulleys on two sides of the crane are connected with the two crane rails on the first berth one by one. At the moment, two lifting machines exist in the first slipway, so that the tank body can be conveniently lifted and installed on the ship body. Through removing the lifting machine on the adjacent berth for replace renting heavy crawler crane, it is lower to place and ground requirement to have, uses comparatively convenient advantage, moreover, uses above-mentioned mode to be used for accomplishing the equipment of jar body and hull, only needs the cost of labor of expenditure response, does not need the hire cost of heavy crawler crane, can reduce the manufacturing cost of liquefied petroleum gas ship in very big degree.

Preferably, the transition assembly comprises a jacking mechanism and a transfer mechanism, the jacking mechanism is used for jacking the crane to enable the crane to be separated from the crane rail, and the transfer mechanism is used for driving the crane to move along the transition rail after the crane is separated from the crane rail.

Through the technical scheme, when the crane moves to be opposite to the transition track from top to bottom along the crane track, the crane is jacked up through the jacking mechanism, so that the crane and the crane track are separated from each other, then the crane is driven to move along the transition track through the transfer mechanism, so that the crane enters into an adjacent slipway, and the tank body and the ship body are assembled.

Preferably, the jacking mechanism comprises a jacking oil cylinder, a cylinder body of the jacking oil cylinder is used for supporting the slipway downwards, and a piston rod of the jacking oil cylinder is used for jacking the crane.

Through the technical scheme, during use, the jacking oil cylinder is placed between the crane and the slipway and the piston rod of the jacking oil cylinder is controlled to extend. When the cylinder body of the jacking oil cylinder is abutted against the top surface of the slipway and the piston rod of the jacking oil cylinder is abutted against the bottom of the crane, the jacking oil cylinder starts to jack the crane upwards, so that the crane is separated from the crane rail.

Preferably, a piston rod of the jacking oil cylinder is hinged to the crane, a lifting hook is arranged on a cylinder body of the jacking oil cylinder, a lifting ring is arranged at the bottom of the crane, and the lifting hook can be hooked on the lifting ring.

Through above-mentioned technical scheme, articulate jacking cylinder on the crane, so do not need artificial transport jacking cylinder for jacking cylinder's use becomes more convenient.

When needs use jacking cylinder, at first control lifting hook breaks away from rings, control jacking cylinder after that and around the pin joint downwardly rotating for jacking cylinder rotates to vertical state, later control jacking cylinder's piston rod extension, make jacking cylinder's cylinder body be close to gradually in the berth top surface, when jacking cylinder's cylinder body and berth top surface contact, jacking cylinder begins to jack up the crane upwards, make crane and crane track alternate segregation.

Preferably, the transfer mechanism comprises a rail trolley for supporting the crane and a transfer machine for pulling the crane, a limiting ring groove for clamping the transition track is formed in a wheel of the rail trolley, and a guy cable of the transfer machine is connected to the crane.

Through above-mentioned technical scheme, after using jacking cylinder control crane and loop wheel machine track separation, install the small rail car to the crane machine below, control jacking cylinder's piston rod shortens after that for the crane machine falls gradually and contacts with the small rail car, and later accessible commentaries on classics lifting machine pulling crane machine removes along transition track. The rail trolley is arranged below the lifting machine, so that the friction force during the transfer of the lifting machine can be effectively reduced, and the transfer process of the lifting machine becomes more convenient. The wheels of the rail trolley are provided with limiting ring grooves which can be matched with the transition track for limiting and guiding the movement of the crane.

Preferably, a transfer platform is arranged between every two adjacent berths, a mounting groove is formed in the transfer platform, the transition track is arranged at the bottom of the mounting groove, and wheels of the rail trolley can extend into the mounting groove.

Through above-mentioned technical scheme, use the transfer mechanism and be used for driving the in-process that the loop wheel machine removed along the transition track, the inside of mounting groove is stretched into to the wheel of small rail car. In the process, the mounting groove can be used for limiting and guiding the rail trolley, so that the rail trolley is not prone to deviation.

Preferably, an elastic protective film is arranged at the notch of the mounting groove, and the top surface of the elastic protective film is flush with the top surface of the transfer platform.

Through above-mentioned technical scheme, the notch department at the mounting groove sets up the elasticity protecting film, can prevent that impurity from entering into the mounting groove inside for the removal process of crane is difficult for receiving the influence. When the crane moves along the transition track, the crane can extrude the elastic protective film below, so that the elastic protective film below deforms and clings to the surface of the transition track. Meanwhile, the deformed elastic protective film can enter the limiting ring groove and is tightly attached to the inner groove wall of the limiting ring groove. In the process, the elastic protective film can scrape off impurities attached to the inner wall of the limiting ring groove, so that the movement of the crane is not easily influenced. When the crane is moved away from the upper part of the deformed elastic protective film, the elastic protective film recovers deformation and bounces off impurities above the elastic protective film, so that the movement of the crane is not easily influenced.

Preferably, a plurality of vent holes are arranged on the top of the elastic protective film in a penetrating manner.

Through the technical scheme, when the crane moves along the transition track, the crane can divide the mounting groove into two cavities which are not communicated with each other. For convenience of description, the chambers adjacent to the first dock are designated as first chambers and the chambers adjacent to the second dock are designated as second chambers. When the crane moves from the second slipway to the first slipway, the space in the first chamber is gradually reduced, and the air in the first chamber is exhausted through the exhaust holes to blow away impurities at the top of the elastic protective film, so that the crane moves more smoothly. Meanwhile, the space in the second chamber is gradually increased, and the outside air enters the interior of the second chamber through the exhaust hole, so that the deformation of the elastic protective film can be quickly recovered.

Preferably, a plurality of supporting blocks are arranged in the mounting groove, and the supporting blocks are uniformly distributed along the length direction of the mounting groove; the sliding groove is formed in the position, opposite to the supporting block, of the bottom of the mounting groove, the supporting spring is arranged in the sliding groove, the supporting block is connected in the sliding groove in a sliding mode, and the bottom of the supporting block is connected with the top of the supporting spring.

Through above-mentioned technical scheme, the supporting shoe is used for supporting the elasticity protecting film for the elasticity supports the difficult mounting groove that is absorbed in of membrane, and impurity is difficult for stopping at the top that the elasticity supported the membrane.

Preferably, a groove is formed in the inner side wall of the sliding groove, a rotating shaft is rotatably arranged in the groove, the rotating shaft is arranged along the vertical direction, a stop block is arranged on the side wall of the rotating shaft, the stop block can rotate left and right along with the rotating shaft, a return spring is arranged on the inner groove wall of the groove, the return spring is connected with the stop block, and the return spring pushes the stop block out of the groove through elasticity to limit the support block to move downwards;

the magnetic block is arranged on the stop block, the magnetic ring is coaxially arranged in the wheel of the small rail car, and when the small rail car is close to the stop block, the magnetic ring can pull the stop block into the groove through the magnetic block.

Through above-mentioned technical scheme, when the lifting machine is not close to yet, reset spring orders about the dog through elasticity and stretches into inside the recess for the restriction supporting shoe moves down, so the supporting shoe can carry out comparatively effectual support to elasticity protecting film, makes impurity be difficult for stopping at the top of elasticity protecting film. When the crane approaches, the suction force between the magnetic ring and the magnetic block is gradually increased, and the magnetic ring drives the stop dog to gradually enter the groove through the magnetic block. When the stop block completely enters the groove, the limiting effect of the stop block on the supporting block disappears, and the supporting block can freely slide in the groove at the moment. When the small rail car is close to the supporting block, the small rail car can press the supporting block into the sliding groove.

Drawings

FIG. 1 is a schematic structural diagram of an embodiment;

FIG. 2 is a partial schematic view of an embodiment;

fig. 3 is a schematic cross-sectional view of the transfer platform.

Reference numerals: 1. a slipway; 2. a hoisting assembly; 21. a crane rail; 22. hoisting a crane; 3. a transition track; 4. a transition component; 41. a jacking mechanism; 411. a jacking oil cylinder; 42. a transfer mechanism; 421. a rail trolley; 422. a transfer machine; 5. a hook; 6. a hoisting ring; 7. a limiting ring groove; 8. transferring the platform; 9. mounting grooves; 10. an elastic protective film; 11. an exhaust hole; 12. a support block; 13. a sliding groove; 14. a support spring; 15. a groove; 16. a rotating shaft; 17. a stopper; 18. a return spring; 19. a magnetic block; 20. a magnetic ring.

Detailed Description

The following detailed description of the embodiments of the present invention is provided in order to make the technical solution of the present invention easier to understand and understand.

A gantry hoisting device comprises at least two side-by-side berths 1 as shown in figure 1, and two adjacent berths 1 are parallel to each other. When in use, the building of the ship body and the tank body can be completed at the slipway 1.

The top of each slipway 1 is provided with a hoisting component 2, and when the lifting device is used, parts to be used can be hoisted through the hoisting component 2, so that the building process of the ship body and the tank body is more convenient and efficient.

The hoisting assembly 2 comprises two crane rails 21 arranged on the top surface of the slipway 1 side by side and a crane 22 connected on the two crane rails 21 in a sliding manner. In use, the crane 22 is controlled to move along the crane rail 21 for hoisting parts at different positions.

As shown in fig. 1, 2 and 3, a transfer platform 8 is disposed between two adjacent berths 1, and the top surface of the transfer platform 8 is flush with the top surface of the berths 1. Mounting groove 9 has been seted up to the top surface department of transferring platform 8, and inside the both ends of mounting groove 9 extended to transferring platform 8, and the extending direction and the loop wheel machine track 21 mutually perpendicular of mounting groove 9. The inside of mounting groove 9 is provided with transition track 3, and transition track 3 is located the tank bottom center department of mounting groove 9. The transition track 3 intersects two crane tracks 21 on the slipway 1.

An elastic protective film 10 is arranged at the notch of the mounting groove 9, and the top surface of the elastic protective film 10 is flush with the top surface of the transfer platform 8. The elastic protection film 10 can deform toward the installation groove 9 when being pressed, and if the downward pressure is large enough, the elastic protection film 10 can be tightly attached to the surface of the transition track 3. The top of the elastic protective film 10 is provided with a plurality of exhaust holes 11 in a penetrating way.

A plurality of grooves 13 that slide have been seted up to the tank bottom department of mounting groove 9, and a plurality of grooves 13 that slide evenly distributed along the length direction of mounting groove 9. Each sliding groove 13 is internally provided with a supporting spring 14, the top of the supporting spring 14 is connected with a supporting block 12, and the supporting block 12 is connected in the sliding groove 13 in a sliding manner. When the supporting spring 14 is in a force balance state, the top of the supporting block 12 abuts against the bottom surface of the elastic protection film 10 to support the elastic protection film 10.

The inner groove wall of the sliding groove 13 is provided with a groove 15, the inside of the groove 15 is rotatably provided with a rotating shaft 16, and the rotating shaft 16 is arranged along the vertical direction. The side wall of the rotating shaft 16 is provided with a stop 17, and the stop 17 can rotate along with the rotating shaft 16. A return spring 18 is arranged in the groove 15, one end of the return spring 18 is fixedly connected to the inner groove wall of the groove 15, and the other end of the return spring 18 is fixedly connected to the side wall of the stop block 17. When the return spring 18 is in a stress balance state, the stopper 17 protrudes from the notch of the groove 15, and the top of the stopper 17 abuts against the bottom of the supporting block 12 to support the supporting block 12. The inside of the stopper 17 is provided with a magnet 19.

The gantry hoisting device further comprises a transfer assembly 4, wherein the transfer assembly 4 is arranged at the bottom of the crane 22 and is used for driving the crane 22 to move along the transition track 3.

The transfer assembly 4 includes a jacking mechanism 41 and a transferring mechanism 42, the jacking mechanism 41 is used for jacking the crane 22 to separate the crane 22 from the crane rail 21, and the transferring mechanism 42 is used for driving the crane 22 to move along the transition rail 3 after the crane 22 is separated from the crane rail 21.

The jacking mechanism 41 comprises a jacking oil cylinder 411, a piston rod of the jacking oil cylinder 411 is hinged to the crane 22, and a cylinder body of the jacking oil cylinder 411 is used for downwards abutting against the top surface of the slipway 1. The cylinder body of the jacking cylinder 411 is provided with a lifting hook 5, the bottom of the crane 22 is provided with a lifting ring 6, and the lifting hook 5 can be hooked on the lifting ring 6.

The transfer mechanism 42 includes a trolley 421 for supporting the crane 22, and a hoist 422 for pulling the crane 22. The wheel of the small rail car 421 is provided with a limit ring groove 7 for the transition rail 3 to be clamped in, the wheel of the small rail car 421 is coaxially provided with a magnetic ring 20, when the small rail car 421 is close to the stop block 17, the magnetic ring 20 can pull the stop block 17 into the groove 15 through the magnetic block 19, and the guy cable of the lifting machine 422 is connected to the lifting machine 22.

The above are only typical examples of the present invention, and besides, the present invention may have other embodiments, and all the technical solutions formed by equivalent substitutions or equivalent changes are within the scope of the present invention as claimed.

Claims

1. A gantry hoisting device is characterized in that: the device comprises at least two side-by-side berths (1), wherein each berth (1) is provided with a hoisting assembly (2); the hoisting assembly (2) comprises two crane rails (21) arranged on the slipway (1) in parallel and a crane (22) connected to the two crane rails (21) in a sliding manner; a transition track (3) is arranged between every two adjacent berths (1), and two ends of the transition track (3) respectively extend into the two berths (1) and are crossed with the two crane tracks (21) in the berths (1); the transition assembly (4) is arranged at the bottom of the crane (22) and used for driving the crane (22) to move along the transition track (3).

2. The gantry crane apparatus of claim 1, wherein: the transition assembly (4) comprises a jacking mechanism (41) and a transfer mechanism (42), wherein the jacking mechanism (41) is used for jacking the crane (22) upwards so that the crane (22) is separated from the crane rail (21), and the transfer mechanism (42) is used for driving the crane (22) to move along the transition rail (3) after the crane (22) is separated from the crane rail (21).

3. The gantry crane apparatus of claim 2, wherein: climbing mechanism (41) are including jacking cylinder (411), the cylinder body of jacking cylinder (411) is with following support berth (1), the piston rod of jacking cylinder (411) is used for the top jack-up crane (22).

4. The gantry crane apparatus of claim 3, wherein: the piston rod of jacking cylinder (411) articulate in crane (22), be provided with lifting hook (5) on the cylinder body of jacking cylinder (411), the bottom of crane (22) is provided with rings (6), lifting hook (5) can be colluded and hang on rings (6).

5. The gantry crane apparatus of claim 2, wherein: transfer mechanism (42) including being used for supporting rail trolley (421) of loop wheel machine (22), be used for pulling the commentaries on classics of loop wheel machine (22) raise quick-witted (422), offer the confession on the wheel of rail trolley (421) transition track (3) are gone into spacing annular (7), the cable of the commentaries on classics of raise quick-witted (422) is connected on loop wheel machine (22).

6. The gantry crane apparatus of claim 1, wherein: adjacent two for transfer platform (8) between berth (1), mounting groove (9) have been seted up on transfer platform (8), transition track (3) set up the tank bottom department of mounting groove (9), the wheel of small rail car (421) can stretch into mounting groove (9).

7. The gantry crane apparatus of claim 6, wherein: an elastic protective film (10) is arranged at the notch of the mounting groove (9), and the top surface of the elastic protective film (10) is flush with the top surface of the transfer platform (8).

8. The gantry crane apparatus of claim 7, wherein: the top of the elastic protective film (10) is provided with a plurality of exhaust holes (11) in a penetrating way.

9. The gantry crane apparatus of claim 6, wherein: a plurality of supporting blocks (12) are arranged in the mounting groove (9), and the supporting blocks (12) are uniformly distributed along the length direction of the mounting groove (9); the sliding groove (13) is formed in the position, opposite to the supporting block (12), of the bottom of the mounting groove (9), a supporting spring (14) is arranged in the sliding groove (13), the supporting block (12) is connected in the sliding groove (13) in a sliding mode, and the bottom of the supporting block (12) is connected with the top of the supporting spring (14).

10. The gantry crane apparatus of claim 9, wherein: a groove (15) is formed in the inner side wall of the sliding groove (13), a rotating shaft (16) is arranged in the groove (15) in a rotating mode, the rotating shaft (16) is arranged in the vertical direction, a stop block (17) is arranged on the side wall of the rotating shaft (16), the stop block (17) can rotate left and right along with the rotating shaft (16), a return spring (18) is arranged on the inner groove wall of the groove (15), the return spring (18) is connected with the stop block (17), and the return spring (18) pushes the stop block (17) out of the groove (15) through elastic force so as to limit the supporting block (12) to move downwards;

the magnetic block (19) is arranged on the stop block (17), the magnetic ring (20) is coaxially arranged in a wheel of the small rail car (421), and when the small rail car (421) is close to the stop block (17), the magnetic ring (20) can pull the stop block (17) into the groove (15) through the magnetic block (19).