Marine double-crane linkage travelling crane system

Abstract

The marine double-crane linkage travelling crane system comprises a longitudinal rail and a transverse rail, a longitudinal walking frame is arranged on the longitudinal rail through driving of a longitudinal walking driving mechanism in a walking mode, and a transverse walking frame is arranged on the transverse rail connected with the longitudinal walking frame through driving of a transverse walking driving mechanism in a walking mode. An electric chain hoist is mounted on the transverse walking frame; transverse walking driving mechanisms, transverse walking frames and electric chain hoists are arranged on the two transverse rails, so that a double-hoisting walking array with different transverse rails and the same longitudinal rail is formed; the double-hoisting walking array is provided with two transverse walking hoisting assembly units; the double-hoisting walking array is provided with a linkage device connected between the two transverse walking hoisting assembly units; the linkage state between the two transverse walking hoisting assembly units can be adjusted through mutual conversion between the tightening state and the loosening state of the linkage device, and higher operation efficiency, better operation flexibility and safety and higher adaptability are provided.

Description

Technical Field

[0001] The invention belongs to the technical field of marine cranes, and in particular relates to a marine double-hoisting linkage crane system. Background Art

[0002] In traditional marine crane operations, single-lift lifting equipment has efficiency and stability problems when handling overlong and overweight cargoes. In order to improve operating efficiency and safety, some use a technical solution of setting two lifting mechanisms in a single track to cooperate with each other to lift cargoes. Because the center of gravity of the lifting is still on the track, the side of the track lacks protection, and the problem of limited stability during cargo lifting, which leads to the inability to ensure safety, is still not completely solved. Especially when lifting heavy cargoes, the stability problem is particularly prominent. In order to ensure safety, the speed can only be reduced, but this affects efficiency, and it is difficult to balance safety and efficiency. Summary of the invention

[0003] Purpose of the invention: In order to overcome the deficiencies in the prior art, the present invention provides a ship-mounted double-hoisting linkage driving system, which adjusts the linkage state between two horizontally traveling hoisting assembly units by switching the tightness of the linkage device, thereby improving the stability and safety in single and double hoisting operations.

[0004] Technical solution: To achieve the above-mentioned purpose, a marine double-hoist linkage crane system of the present invention comprises a longitudinal track and a transverse track, a longitudinal traveling frame is arranged on the longitudinal track and driven by a longitudinal traveling driving mechanism, a transverse traveling frame is arranged on the transverse track connected to the longitudinal traveling frame and driven by a transverse traveling driving mechanism, and an electric chain hoist is installed on the transverse traveling frame;

[0005] The longitudinal track and the transverse track are both double tracks arranged in parallel, and the two transverse tracks are provided with the transverse travel drive mechanism, the transverse travel frame and the electric chain hoist, forming a double hoisting travel array with different transverse tracks and the same longitudinal track; the transverse travel drive mechanism, the transverse travel frame and the electric chain hoist on the same transverse track form a transverse travel hoisting assembly unit, and the double hoisting travel array has two transverse travel hoisting assembly units;

[0006] The double hoisting walking array has a linkage device, and the two horizontal walking hoisting assembly units belonging to the double hoisting walking array are connected through the linkage device; the linkage device includes a tightening state and a loosening state, and the linkage state between the two horizontal walking hoisting assembly units is adjusted by mutual conversion between the tightening and loosening states.

[0007] Furthermore, when the two transverse traveling hoisting assembly units are in a synchronous transverse traveling state along their respective corresponding transverse tracks, the linkage device is in a tightened state, and the two transverse traveling hoisting assembly units are pulled by each other through the linkage device to maintain a linkage transverse traveling relationship;

[0008] When the two transverse traveling hoisting assembly units are in an independent transverse traveling state along their corresponding transverse tracks, the linkage device is in a relaxed state, thereby releasing the linkage transverse traveling relationship between the two transverse traveling hoisting assembly units.

[0009] Furthermore, when the double-hoisting walking array is in a transverse walking state along the longitudinal track, the linkage device is in a tightened state to fix the distance between the two transverse walking hoisting assembly units.

[0010] Furthermore, the linkage device includes a pair of horizontal telescopic mechanisms, which are symmetrically installed on the same mounting seat in a back-to-back posture. The horizontal telescopic mechanisms are connected to the transverse walking and hoisting assembly units one by one, and the horizontal telescopic mechanisms realize the conversion of the tightening and relaxing states of the linkage device by performing extension and contraction actions.

[0011] Furthermore, the extension and contraction actions of the two horizontal telescopic mechanisms are kept synchronous.

[0012] Furthermore, a short rope segment is provided at the telescopic end of the horizontal telescopic mechanism, and the horizontal telescopic mechanism is connected to the hook frame of the electric chain hoist through the short rope segment.

[0013] Furthermore, the linkage device also includes a guide rail, a turntable and a lifting mechanism arranged in sequence from top to bottom; the guide rail is installed on the longitudinal walking frame and is parallel to the transverse track; the lower end of the lifting mechanism is connected to the mounting seat; the guide rail is used to drive the horizontal telescopic mechanism to follow the transverse walking of the transverse walking hoisting assembly unit and follow the displacement; the turntable is used to drive the horizontal telescopic mechanism to rotate in the horizontal plane to adjust the direction to remain toward the transverse walking hoisting assembly unit; the lifting mechanism is used to drive the horizontal telescopic mechanism to rise and fall following the lifting state of the transverse walking hoisting assembly unit.

[0014] Furthermore, limit baffles are respectively arranged at the bottom of the guide rail near both ends.

[0015] Beneficial effects: Through the design of the double-hoisting walking array, the system of the present invention can realize the coordinated operation of two hoisting units, significantly improving the efficiency of cargo loading and unloading; through the tightening and loosening state conversion of the linkage device, the linkage state between the two horizontal walking hoisting assembly units can be flexibly adjusted to adapt to different operation requirements; the double-hoisting linkage system pulls each other through the linkage device during synchronous horizontal walking to maintain a linked horizontal walking relationship, thereby enhancing the stability of the system and having stronger adaptability and higher safety. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the top view structure of the present invention;

[0017] Figure 2 It is a schematic diagram of the main structure of the present invention;

[0018] Figure 3 It is a structural schematic diagram of the linkage device;

[0019] Figure 4 It is a structural schematic diagram of the linkage device connected between the horizontal travel hoisting assembly units. DETAILED DESCRIPTION

[0020] The present invention will be further described below in conjunction with the accompanying drawings.

[0021] like Figure 1 , Figure 2 as well as Figure 4 As shown, a ship-used double-hoisting linkage driving system comprises a longitudinal track 1 and a transverse track 2. A longitudinal traveling frame 4 is provided on the longitudinal track 1 through a longitudinal traveling driving mechanism 3 to drive the traveling. A transverse traveling frame 6 is provided on the transverse track 2 connected to the longitudinal traveling frame 4 through a transverse traveling driving mechanism 5 to drive the traveling. An electric chain hoist 7 is installed on the transverse traveling frame 6. The longitudinal track 1 and the transverse track 2 are both double tracks arranged in parallel. The two transverse tracks 2 are both provided with the transverse traveling driving mechanism 5, the transverse traveling frame 6 and the electric chain hoist 7 to form a double-hoisting traveling array with different transverse tracks and the same longitudinal track. The The lateral travel drive mechanism 5, the lateral travel frame 6 and the electric chain hoist 7 form a lateral travel hoisting assembly unit 10. The double hoisting travel array has two lateral travel hoisting assembly units 10; the double hoisting travel array has a linkage device 8, and the two lateral travel hoisting assembly units 10 belonging to the double hoisting travel array are connected through the linkage device 8; the linkage device 8 includes a tightening state and a loosening state, and the linkage state between the two lateral travel hoisting assembly units 10 is adjusted by mutual conversion between the tightening and loosening states, providing higher operating efficiency, better operational flexibility and safety, and stronger adaptability. The specific linkage state is mainly divided into the following three working conditions:

[0022] Working condition one: When the two transverse walking hoisting assembly units 10 are in a synchronous transverse walking state along their respective corresponding transverse tracks 2, the linkage device 8 is in a tightened state, and the two transverse walking hoisting assembly units 10 are pulled against each other through the linkage device 8 to maintain a linked transverse walking relationship. The actual application of this working condition can be divided into two types, one is that the two transverse walking hoisting assembly units 10 hoist the same cargo, and the other is that the two transverse walking hoisting assembly units 10 hoist their respective corresponding cargoes, but synchronous transverse walking must be ensured. In the above case, after the two transverse walking hoisting assembly units 10 are linked through the tightened linkage device 8, the synchronization of the transverse walking of the two transverse walking hoisting assembly units 10 can be ensured, thereby ensuring that the lifting center of gravity is always between the two transverse tracks 2, rather than on the transverse track 2, and the lifting center of gravity is ensured not to change in the linkage state, thereby improving the lifting stability and safety.

[0023] Working condition 2: When the two transversely traveling hoisting assembly units 10 are independently traveling transversely along their corresponding transverse tracks 2, the linkage device 8 is in a relaxed state, and the linkage transverse traveling relationship between the two transversely traveling hoisting assembly units 10 is released. The actual application of this working condition is: the two transversely traveling hoisting assembly units 10 independently carry out transversely traveling cargo hoisting, at this time the linkage state is released, the independent hoisting operations between the two do not affect each other, and the hoisting efficiency is higher.

[0024] Working condition three: When the double hoisting walking array is in a state of horizontal walking along the longitudinal track 1, the linkage device 8 is in a tightened state to fix the distance between the two horizontal walking hoisting assembly units 10. The actual application of this working condition is: the two horizontal walking hoisting assembly units 10 may be hoisting the same cargo or different cargoes, but the destinations of the vertical walking are the same. In order to improve the stability of the vertical walking hoisting operation, the two horizontal walking hoisting assembly units 10 are connected by the tightened linkage device 8 to ensure a fixed distance between the two, which can greatly reduce the probability and amplitude of shaking during the vertical walking process and improve stability and safety.

[0025] Therefore, the advantages of the present invention are as follows:

[0026] (1) Improve work efficiency: Through the design of the dual hoisting walking array, the system can realize the coordinated operation of two hoisting units, significantly improving the efficiency of cargo loading and unloading;

[0027] (2) Enhanced operational flexibility: The system can flexibly adjust the linkage state between the two horizontal traveling hoisting assembly units through the tightening and loosening state conversion of the linkage device to adapt to different operation requirements;

[0028] (3) Improved stability: The double-hanging linkage system pulls each other through the linkage device during synchronous lateral movement, maintaining a linked lateral movement relationship and enhancing the stability of the system;

[0029] (4) Strong adaptability: The system can adapt to different ship structures and cargo loading and unloading requirements, and has good versatility and adaptability;

[0030] (5) Improved safety: Through linkage devices and precise control, the system can reduce potential safety hazards during operation and improve the safety of operations.

[0031] like Figure 3 and Figure 4 As shown, the linkage device 8 includes a pair of horizontal telescopic mechanisms 9, which are symmetrically mounted on the same mounting seat 11 in a back-to-back posture. The horizontal telescopic mechanisms 9 are connected to the horizontal walking hoisting assembly unit 10 in a one-to-one correspondence. The horizontal telescopic mechanisms 9 realize the conversion of the tightening and relaxing states of the linkage device 8 by performing extension and contraction actions. In order to make the adjustment at both ends as balanced as possible, it is necessary to ensure that the extension and contraction actions of the two horizontal telescopic mechanisms 9 are synchronized. The telescopic end of the horizontal telescopic mechanism 9 is provided with a short rope segment 12, and the horizontal telescopic mechanism 9 is connected to the hook frame 70 of the electric chain hoist 7 through the short rope segment 12. The position where the horizontal telescopic mechanism 9 is connected is close to the hoisted goods. This position has the best effect in ensuring stability. In addition, the use of the short rope segment 12 ensures the flexibility of the connection with the hook frame 70 of the electric chain hoist 7, and can further improve the flexibility of the horizontal telescopic mechanism 9 in the horizontal plane posture. The linkage device 8 also includes a guide rail 13, a turntable 14 and a lifting mechanism 15 arranged in sequence from top to bottom; the guide rail 13 is installed on the longitudinal travel frame 4 and is parallel to the transverse track 2; the lower end of the lifting mechanism 15 is connected to the mounting seat 11; the guide rail 13 is used to drive the horizontal telescopic mechanism 9 to follow the transverse travel of the transverse travel hoisting assembly unit 10 and follow the displacement; the turntable 14 is used to drive the horizontal telescopic mechanism 9 to rotate in the horizontal plane to adjust the direction to keep it facing the transverse travel hoisting assembly unit 10; the lifting mechanism 15 is used to drive the horizontal telescopic mechanism 9 to rise and fall following the lifting state of the transverse travel hoisting assembly unit 10. The horizontal telescopic mechanism 9 and the short rope segment 12 equipped in the system, as well as the guide rail 13, the turntable 14 and the lifting mechanism 15, realize precise control and efficient operation, and ensure the safety of the hoisting operation, wherein the horizontal telescopic mechanism 9 can be selected as an electric push rod, the guide rail 13 is an electric guide rail, the turntable 14 is an electric turntable, and the lifting mechanism 15 can be selected as an extendable lift.

[0032] In order to improve the anti-collision protection of the linkage device 8, limit baffles 16 are respectively provided at the bottom of the guide rail 13 near both ends.

[0033] It should be noted that when two lateral traveling hoisting assembly units 10 independently carry out lateral traveling cargo hoisting, there is no connection between the two. At this time, in order to prevent the existence of the linkage device 8 from affecting the independent lateral traveling hoisting operation, it is necessary to release the connection between one of the lateral traveling hoisting assembly units 10 and the linkage device 8, that is, to remove the short rope segment 12 at one end from the hook frame 70 of the electric chain hoist 7, so as not to affect the independent lateral traveling hoisting operation of the two lateral traveling hoisting assembly units 10. When linkage is required during hoisting, the short rope segment 12 can be reconnected to the hook frame 70.

[0034] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principle of the present invention. These improvements and modifications should also be regarded as the scope of protection of the present invention.

Claims

1. A ship-mounted double-hoist linkage crane system, comprising a longitudinal track (1) and a transverse track (2), wherein a longitudinal traveling frame (4) is provided on the longitudinal track (1) and driven to travel by a longitudinal traveling driving mechanism (3), and a transverse traveling frame (6) is provided on the transverse track (2) connected to the longitudinal traveling frame (4) and driven to travel by a transverse traveling driving mechanism (5), wherein an electric chain hoist (7) is installed on the transverse traveling frame (6); Features: The longitudinal track (1) and the transverse track (2) are both double tracks arranged in parallel, and the two transverse tracks (2) are provided with the transverse travel drive mechanism (5), the transverse travel frame (6) and the electric chain hoist (7), so as to form a double hoisting travel array with different transverse tracks and the same longitudinal track; the transverse travel drive mechanism (5), the transverse travel frame (6) and the electric chain hoist (7) on the same transverse track (2) form a transverse travel hoisting assembly unit (10), and the double hoisting travel array has two transverse travel hoisting assembly units (10); The double hoisting walking array has a linkage device (8), and the two transverse walking hoisting assembly units (10) belonging to the double hoisting walking array are connected via the linkage device (8); the linkage device (8) includes a tightening state and a loosening state, and the linkage state between the two transverse walking hoisting assembly units (10) is adjusted by mutual conversion between the tightening and loosening states.

2. A ship-mounted double-hoist linkage crane system according to claim 1, characterized in that: When the two transversely moving hoisting assembly units (10) are in a synchronous transversely moving state along their respective corresponding transverse tracks (2), the linkage device (8) is in a tightened state, and the two transversely moving hoisting assembly units (10) are pulled against each other through the linkage device (8) to maintain a linked transverse moving relationship; When the two transversely traveling hoisting assembly units (10) are independently traveling transversely along their corresponding transverse tracks (2), the linkage device (8) is in a relaxed state, thereby releasing the linkage transversely traveling relationship between the two transversely traveling hoisting assembly units (10).

3. A ship-mounted double-hoist linkage crane system according to claim 2, characterized in that: When the double hoisting walking array is in a state of transverse walking along the longitudinal track (1), the linkage device (8) is in a tightened state to fix the distance between the two transverse walking hoisting assembly units (10).

4. A ship-mounted double-hoist linkage crane system according to claim 2, characterized in that: The linkage device (8) comprises a pair of horizontal telescopic mechanisms (9), which are symmetrically mounted on the same mounting seat (11) in a back-to-back posture. The horizontal telescopic mechanisms (9) are connected to the transverse traveling hoisting assembly unit (10) in a one-to-one correspondence. The horizontal telescopic mechanisms (9) realize the conversion of the tightening and relaxing states of the linkage device (8) by performing extension and contraction actions.

5. A ship-mounted double-hoist linkage crane system according to claim 4, characterized in that: The extension and contraction actions of the two horizontal telescopic mechanisms (9) are kept synchronous.

6. A ship-mounted double-hoist linkage crane system according to claim 5, characterized in that: The telescopic end of the horizontal telescopic mechanism (9) is provided with a short rope section (12), and the horizontal telescopic mechanism (9) is connected to the hook frame (70) of the electric chain hoist (7) via the short rope section (12).

7. A ship-mounted double-hoist linkage crane system according to claim 6, characterized in that: The linkage device (8) further comprises a guide rail (13), a turntable (14) and a lifting mechanism (15) which are arranged in sequence from top to bottom; the guide rail (13) is mounted on the longitudinal travel frame (4) and is parallel to the transverse track (2); the lower end of the lifting mechanism (15) is connected to the mounting seat (11); the guide rail (13) is used to drive the horizontal telescopic mechanism (9) to follow the transverse travel of the transverse travel hoisting assembly unit (10) and follow the displacement; the turntable (14) is used to drive the horizontal telescopic mechanism (9) to rotate in a horizontal plane to adjust the direction to remain toward the transverse travel hoisting assembly unit (10); the lifting mechanism (15) is used to drive the horizontal telescopic mechanism (9) to rise and fall following the lifting state of the transverse travel hoisting assembly unit (10).

8. A ship-mounted double-hoist linkage crane system according to claim 7, characterized in that: Limiting baffles (16) are respectively arranged at the bottom of the guide rail (13) near both ends.

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