CN116374849A - Crane for port operation - Google Patents

Abstract

The invention relates to the technical field of cranes, and discloses a crane used for port operations, which includes a main girder, a slideway groove is opened on the upper surface of the main beam, and a sliding platform is slidably connected to the inside of the slideway groove, and the outside of the sliding platform A trolley assembly is provided for driving the slide table to move. The outside of the slide table is fixedly connected with a first driving motor, the output shaft of the first drive motor is fixedly sleeved with a wire barrel, and the inside of the wire barrel is fixedly connected with a first steel wire rope. The end of the steel wire rope away from the wire barrel is fixedly connected with a hanging platform, and the lower end of the hanging platform is fixedly connected with a lifting hook. The outside of the first steel wire rope is provided with a support component and a stable support component. When the heavy hook drives the goods up, the rotating drum drives the second steel wire rope to shrink and pull the two sides of the upper end of the hanging platform. At this time, the second steel wire ropes on both sides exert an upward triangular support force on the hanging platform to reduce the lifting of the goods on the hanging platform. The rear shaking condition improves the stability of cargo transportation.

Description

A crane for port operations

technical field

The invention relates to the technical field of cranes, in particular to a crane used for port operations.

Background technique

Crane is a kind of heavy mechanical equipment used to carry and hoist heavy objects in ports, docks and other places. Port cranes are usually installed on docks, and can quickly and accurately handle cargo such as containers, bulk cargo, and large machinery and equipment. They are port cargo One of the indispensable equipment in loading and unloading operations. Among them, gantry cranes are mostly used for loading and unloading operations of large cargo. Shaped frame, two feet are installed under the main beam, which can walk directly on the track on the ground. The main beam is equipped with a lifting trolley and a lifting hook. The crane lifts and transports the goods through the lifting hook. , due to the heavy weight of the cargo, and the lifting hook is only fixed by a wire rope, when the hook drives the cargo up, the cargo is easy to shake, which easily causes the risk of the cargo falling off.

Contents of the invention

(1) Solved technical problems

Aiming at the deficiencies of the prior art, the invention provides a crane used for port operations.

(2) Technical solution

The present invention provides the following technical solutions: a crane for port operations, including a main girder, two girders are fixedly connected to both sides of the lower surface of the girder, and each of the two girders is fixedly installed on the side away from the main girder There is a sliding seat, the upper surface of the main beam is provided with a slideway groove, the inside of the slideway groove is provided with an opening communicating with the outside of the main beam, the inside of the slideway groove is slidably connected with a slide table, and the upper surface of the slide table is set as an opening shape, the outside of the slide table is provided with a trolley assembly for driving the slide table to move, the outside of the slide table is fixedly connected with the first drive motor, the output shaft of the first drive motor moves through the slide table and will enter the inside of the slide table, the first The outside of the output shaft of the drive motor is fixedly sleeved with a wire drum, and the inside of the wire drum is fixedly connected with a first wire rope. The first wire rope is wound inside the wire drum and extends to the bottom of the main beam through the slideway groove. The end of the first wire rope is far away from the wire drum. A suspension platform is fixedly connected, and the lower end of the suspension platform is fixedly connected with a lifting hook. The outside of the first wire rope is provided with a support assembly and a stable support assembly for improving the stability of the lifting hook when it is lowered. Linkage components for transmission of components.

Preferably, the trolley assembly includes a second drive motor, a mobile platform and a mobile tooth slot, the mobile platform is fixedly connected to the side of the slide table outside away from the first drive motor, and the second drive motor is fixedly connected to the outside of the mobile platform. The side of the mobile table close to the surface of the main beam is set as a hollow shape, and the output shaft of the second driving motor runs through and enters the hollow of the mobile table. The main beam is close to the side of the mobile platform, and the rotating teeth are meshed and connected to the inside of the mobile tooth groove.

Preferably, the support assembly includes a support platform and a connecting plate, the number of the connecting plates is two, and the two connecting plates are fixedly connected to the side of the supporting platform close to the sliding platform, and the supporting platform is slidably connected to the main beam through the connecting plate the lower surface, and the supporting platform is movably sleeved on the outside of the first steel wire rope.

Preferably, the supporting assembly also includes a rotating wheel, a fixed platform and a lower notch, the lower notch is set on the side of the main beam close to the supporting platform, the fixed platform is fixedly connected to the side of the supporting platform close to the main beam, and the fixed platform It is U-shaped, and the inside of the fixed table is connected with a rotating wheel through a rotating shaft, and the rotating wheel is connected to the inside of the lower notch in rotation.

Preferably, the number of the stable support assemblies is set to two, and the two stable support assemblies are respectively arranged on both sides of the lower surface of the support platform, and each stable support assembly includes two fixing plates, and the two fixing plates are respectively fixed It is connected to both sides of the lower surface of the support platform, and the side where the two fixed plates are close to each other is rotatably connected with a central axis, and the outer surface of the central axis is fixedly sleeved with a rotating drum, and the outer surface of the rotating drum is fixedly connected with a second steel wire rope. The steel wire rope is wound outside the rotating drum, and the end of the second steel wire rope away from the rotating drum is fixedly connected to the outside of the hanging platform.

Preferably, an inner groove is provided inside the fixed plate on one side, and one end of the central shaft moves through the fixed plate on one side and extends to the inside of the inner groove. The outer meshing connection is connected with connecting teeth, the inner part of the connecting teeth is fixedly connected with a circular shaft, and the two ends of the circular shaft are respectively connected in rotation to the two sides of the inner wall of the inner groove.

Preferably, the linkage assembly includes an inner chamber, a first rotating roller, a first transmission belt, a second rotating roller and a second transmission belt, the inner chamber is set inside the support platform, and the two ends of the first rotating roller are respectively connected in rotation The two sides of the inner wall of the cavity and the two sides of the second drive belt are respectively movably socketed on the outside of the first rotating roller and the output shaft of the first drive motor, and the second drive belt is driven to rotate by the output shaft of the first drive motor.

Preferably, the number of the second rotating rollers is two, and the two second rotating rollers are respectively connected to both sides of the inner chamber in rotation, the first transmission belt is movably sleeved on the outside of the two second rotating rollers, and the second rotating roller The two rotating rollers are engaged with the connecting teeth.

Preferably, the outside of the fixed plate is configured to support the steering assembly of the drum, the steering assembly includes a steering plate, the steering plate is fixedly connected to the outside of the fixing plate, the lower surface of the steering plate is fixedly connected with a short plate, and the short plate There is a wire slot inside, and the second wire rope moves through the wire slot and extends to be fixed to the outside of the hanging platform;

The inner wall of the trunking is provided with a bottom groove, and both sides of the inner wall of the bottom groove are provided with side grooves. A sleeve shaft is slidingly connected between the two side grooves. The shaft is rotatably connected to the inside of the line groove, and the second wire rope is lapped on the outer surface of the hanging wheel, and both sides of the outside of the sleeve shaft are movably socketed with inserting plates, which are slidably connected to the inside of the side groove, and the lower end of the inserting plate A spring is fixedly connected, and the end of the spring away from the inserting plate is fixedly connected to the inner wall of the side groove.

(3) Beneficial effects

Compared with the prior art, the present invention provides a crane for port operations, which has the following beneficial effects:

1. For the crane used for port operations, when the cargo is lifted by the lifting hook, the first drive motor drives the wire drum to shrink the first wire rope and lift the cargo upward for transportation. When the lifting hook drives the cargo to rise , the second transmission belt synchronously drives the central shaft transmission, and drives the second steel wire rope to shrink through the rotating drum to pull the two sides of the upper end of the hanging platform. The stability of the crane platform and the lifting hook when pulling the goods up reduces the shaking of the goods on the platform and improves the stability of cargo transportation.

2. The crane used for port operations controls the first driving motor to drive the wire barrel to rotate and lower the suspension platform and lifting hook, lower the lifting hook to the top of the cargo and lift the cargo, and the wire barrel rotates At the same time, the output shaft of the first drive motor synchronously drives the second transmission belt to carry out synchronous transmission, the rotation of the second transmission belt drives the first rotating roller and makes the first transmission belt rotate, the first transmission belt drives the connecting teeth and makes the sleeve teeth drive the central shaft to rotate, When the axis rotates, it drives the drum to rotate and makes the second steel wire rope extend downward synchronously with the first steel wire rope. The pulling support of the second steel wire rope cooperates with the central pulling of the hanging platform by the first steel wire rope to achieve the effect of stably lowering the hanging platform and the lifting hook.

3. For the crane used for port operations, after lifting the goods, start the second drive motor to mobilize the mobile platform and make the sliding platform move laterally inside the slideway groove, so that the goods follow the sliding platform to move laterally For transportation, the second driving motor drives the rotating gear to rotate inside the moving tooth slot and drives the moving table to move laterally on the upper surface of the main beam through the meshing transmission. When the sliding table moves, it drives the supporting table to make the rotating wheel move inside the lower slot. Sliding, through the support platform, the sliding positioning of the sliding table is applied below, which improves the smooth performance of the sliding table when it moves.

4. For the crane used for port operations, when the second steel wire rope is extended downwards following the first steel wire rope, the second steel wire rope moves inside the wire groove when extending along with the first wire rope, and the second wire rope moves through the wire groove. Redirection enables the second steel wire rope to remain above the hanging platform to support the hanging platform, ensuring that the upward stable support performance is provided for the hanging platform.

5. For the crane used for port operations, by setting the wire pulley to cooperate with the spring, when the second wire rope moves in the wire groove, the second wire rope moves on the outside of the wire pulley and drives the wire pulley to move in the wire groove. Rotation, through the rotation of the hanging wheel, the frictional resistance generated by the movement of the second wire rope in the wire groove is reduced, and at the same time, the spring provides upward elasticity for the sleeve shaft through the spring, so that the sleeve shaft drives the hanging wheel to contact the second wire rope, avoiding The condition that the second wire rope is separated from the appearance of the wire pulley ensures the continuous contact between the second wire rope and the wire pulley, so as to improve the stability of the movement of the second wire rope.

Description of drawings

Fig. 1 is a structural representation of the present invention;

Fig. 2 is a schematic structural view of the supporting platform in Fig. 1 of the present invention;

Fig. 3 is a schematic view of the upward structure of the supporting platform in Fig. 2 of the present invention;

Fig. 4 is a partial cross-sectional structural schematic diagram of the supporting platform in Fig. 1 of the present invention;

Fig. 5 is the structural representation of turning plate in Fig. 3 of the present invention;

Fig. 6 is a partial bottom-view structure diagram of the main girder in Fig. 1 of the present invention.

In the figure: 1, the main beam; 11, the frame beam; 12, the slide seat; 13, the first wire rope; 14, the slideway groove; 15, the lifting hook; 16, the slide table; 17, the first driving motor; 18 , spool; 19, suspension platform; 2, trolley assembly; 21, second drive motor; 22, mobile platform; 23, mobile tooth groove; 24, rotating gear; 3, support component; 31, support platform; 32, connection Plate; 33, rotating wheel; 34, fixed platform; 35, lower notch; 4, stable support assembly; 41, fixed plate; 42, rotating drum; 43, second wire rope; 44, inner groove; 45, central axis; 46. Set teeth; 47. Connecting teeth; 48. Round shaft; 5. Steering assembly; 51. Steering plate; 52. Short board; 53. Wire groove; 54. Side groove; 55. Bottom groove; 57. Hanging wheel; 58. Sleeve shaft; 59. Spring; 7. Linkage assembly; 71. Inner cavity; 72. The first rotating roller; 73. The first transmission belt; 74. The second rotating roller; 75. The second transmission belt .

Detailed ways

The present invention will be described in further detail below in conjunction with the accompanying drawings, wherein the same components are represented by the same reference numerals. It should be noted that the words "front", "rear", "left" and "right" used in the following description , "upper" and "lower", "bottom" and "top" refer to directions in the drawings, and the words "inner" and "outer" refer to directions toward or away from the geometric center of a particular component, respectively.

The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

Please refer to Fig. 1-Fig. 6, the present invention provides a kind of technical scheme: a kind of crane that is used for port operation, comprises main girder 1, and the both sides of main girder 1 lower surface all are fixedly connected with two girders 11, every two The side of each frame beam 11 away from the main beam 1 is fixedly equipped with a sliding seat 12, the upper surface of the main beam 1 is provided with a slideway groove 14, and the inside of the slideway groove 14 is provided with an opening communicating with the outside of the main beam 1. The inside of slideway groove 14 is slidably connected with slide table 16, and the upper surface of slide table 16 is made as opening shape, and the outside of slide table 16 is provided with the dolly assembly 2 that is used to drive slide table 16 to move, and the outside of slide table 16 is fixedly connected with The first drive motor 17, the output shaft of the first drive motor 17 movably passes through the slide table 16 and will enter the inside of the slide table 16, the output shaft of the first drive motor 17 is fixedly sleeved with the wire barrel 18 outside, and the inside of the wire barrel 18 is fixed Connected with a first steel wire rope 13, the first steel wire rope 13 is wound inside the wire barrel 18 and extends to the bottom of the main beam 1 through the slideway groove 14, and the end of the first steel wire rope 13 away from the wire barrel 18 is fixedly connected with a suspension platform 19, the suspension platform 19 The lower end of the first wire rope 13 is fixedly connected with a lifting hook 15, and the outside of the first wire rope 13 is provided with a support assembly 3 and a stable support assembly 4 for improving the stability of the lifting hook 15, and the outside of the wire barrel 18 is provided with a stable support assembly 4 A linkage assembly 7 for transmission.

The trolley assembly 2 includes a second drive motor 21, a mobile platform 22 and a mobile slot 23. The mobile platform 22 is fixedly connected to the side of the sliding platform 16 away from the first drive motor 17, and the second drive motor 21 is fixedly connected to the mobile platform. 22, the side of the mobile platform 22 close to the surface of the main beam 1 is hollow, the output shaft of the second driving motor 21 moves through and enters the hollow of the mobile platform 22, and the output shaft of the second driving motor 21 is fixedly sleeved There is a rotating tooth 24, and the moving tooth groove 23 is opened on the side of the main beam 1 close to the mobile platform 22, and the rotating tooth 24 is meshed and connected to the inside of the moving tooth groove 23.

The support assembly 3 includes a support platform 31 and a connecting plate 32, the number of the connecting plates 32 is two, and the two connecting plates 32 are fixedly connected to the side of the supporting platform 31 close to the sliding platform 16, and the supporting platform 31 slides through the connecting plate 32 It is connected to the lower surface of the main beam 1, and the support platform 31 is movably sleeved on the outside of the first steel wire rope 13. The support assembly 3 also includes a rotating wheel 33, a fixed platform 34 and a lower notch 35, and the lower notch 35 is provided on the main beam. 1 The side close to the support platform 31, the fixed platform 34 is fixedly connected to the side of the support platform 31 close to the main beam 1, the fixed platform 34 is U-shaped, and the inside of the fixed platform 34 is connected with a rotating wheel 33 through a rotating shaft, and the rotating wheel 33 The swivel connection is inside the lower notch 35 .

The number of stable support assemblies 4 is set to two, and the two stable support assemblies 4 are respectively arranged on both sides of the lower surface of the support table 31. Each stable support assembly 4 includes two fixed plates 41, and the two fixed plates 41 are respectively Fixedly connected to both sides of the lower surface of the support platform 31, the side of the two fixed plates 41 close to each other is rotatably connected to a central axis 45, and the outer surface of the central axis 45 is fixedly sleeved with a rotating drum 42, and the outer surface of the rotating drum 42 is fixedly connected There is a second wire rope 43, the second wire rope 43 is wound outside the drum 42, the end of the second wire rope 43 away from the drum 42 is fixedly connected to the outside of the suspension platform 19, and the inside of the fixed plate 41 on one side is provided with an inner groove 44 , one end of the central axis 45 moves through the fixed plate 41 on one side and extends to the inside of the inner groove 44. The outer fixed sleeve of the central axis 45 is sleeved with set teeth 46, and the outer meshing connection of the set teeth 46 is connected with connecting teeth 47. The inside of 47 is fixedly connected with a circular shaft 48, and the two ends of the circular shaft 48 are respectively rotatably connected to both sides of the inner wall of the inner groove 44.

The outside of the fixed plate 41 is provided with a steering assembly 5 for supporting the drum 42, the steering assembly 5 includes a steering plate 51, the steering plate 51 is fixedly connected to the outside of the fixing plate 41, and the lower surface of the steering plate 51 is fixedly connected with a short plate 52 , the inside of the short board 52 is provided with a wire groove 53, the second wire rope 43 moves through the wire groove 53 and extends to be fixed with the outside of the suspension platform 19, the inner wall of the wire groove 53 is provided with a bottom groove 55, and both sides of the bottom groove 55 inner wall are A side groove 54 is provided, and a sleeve shaft 58 is slidably connected between the two side grooves 54, and the outside of the sleeve shaft 58 is movably sleeved with a thread pulley 57, and the thread pulley 57 is connected to the inside of the wire groove 53 by rotating the sleeve shaft 58. And the second wire rope 43 is lapped on the outer surface of the hanging wheel 57, and the both sides of sleeve shaft 58 outside are all movably socketed with flashboard 56, and flashboard 56 is slidably connected in the inside of side groove 54, and the lower end of flashboard 56 is fixed A spring 59 is connected, and one end of the spring 59 away from the inserting plate 56 is fixedly connected to the inner wall of the side groove 54 .

The linkage assembly 7 includes an inner chamber 71, a first rotating roller 72, a first transmission belt 73, a second rotating roller 74 and a second driving belt 75, and the inner chamber 71 is set inside the support table 31, and the two ends of the first rotating roller 72 The two sides of the inner wall of the inner cavity 71 are respectively rotated and connected, and the two sides of the second transmission belt 75 are respectively movably socketed on the outside of the first rotating roller 72 and the output shaft of the first drive motor 17, and the second transmission belt 75 passes through the first drive motor. The output shaft of 17 is driven to rotate, and the quantity of the second rotating roller 74 is two, and the two second rotating rollers 74 are respectively rotated and connected to the two sides inside the inner cavity 71, and the first transmission belt 73 is movably sleeved on the two second rotating rollers. The outside of the roller 74, and the second rotating roller 74 is engaged with the connecting tooth 47.

When using,

The first step is to drive the spool 18 to rotate by controlling the first driving motor 17 and lower the suspension platform 19 and the lifting hook 15, lower the lifting hook 15 to the top of the goods and lift the goods, and the spool 18 rotates When the output shaft of the first driving motor 17 synchronously drives the second transmission belt 75 to carry out synchronous transmission, the second transmission belt 75 rotates to drive the first rotating roller 72 and makes the first transmission belt 73 rotate, and the first transmission belt 73 drives the connecting teeth 47 and makes the sleeve The teeth 46 drive the central shaft 45 to rotate, while the central shaft 45 rotates and drives the drum 42 to rotate and make the second steel wire rope 43 follow the first steel wire rope 13 to extend downward synchronously. At this time, the suspension platform 19 and the lifting hook 15 are When moving downwards, the two sides of the suspension platform 19 are respectively pulled and supported by the second steel wire ropes 43 on both sides, and the center of the suspension platform 19 is pulled by the first steel wire rope 13 to stabilize the suspension platform 19 and the lifting hook 15. Effect.

In the second step, when the goods are hoisted by the lifting hook 15, the first driving motor 17 drives the wire barrel 18 to shrink the first wire rope 13 and lift the goods upwards for transportation. When the lifting hook 15 drives the goods to rise, The second transmission belt 75 synchronously drives the central shaft 45 to drive, and drives the second steel wire rope 43 to shrink through the rotating drum 42 to pull the two sides of the upper end of the suspension platform 19. The triangular support force can improve the stability of the suspension platform 19 and the lifting hook 15 when pulling the goods up, reduce the shaking of the suspension platform 19 with the goods rising, and improve the stability of cargo transportation.

The third step is to start the second drive motor 21 after lifting the goods to mobilize the mobile platform 22 and make the sliding platform 16 move laterally inside the slideway groove 14, so that the goods follow the sliding platform 16 for lateral movement and transportation , the second driving motor 21 drives the rotating gear 24 to rotate inside the moving tooth groove 23 and drives the moving table 22 to move laterally on the upper surface of the main beam 1 through the meshing transmission, and drives the supporting table 31 to make the rotating wheel move while the sliding table 16 is moving. 33 slides inside the lower notch 35, and applies downward sliding positioning to the slide table 16 via the support table 31, which improves the stability of the slide table 16 when it moves.

Although the embodiments of the present invention have been shown and described, those skilled in the art can understand that various changes, modifications and substitutions can be made to these embodiments without departing from the principle and spirit of the present invention. and modifications, the scope of the invention is defined by the appended claims and their equivalents.

Claims (9)

1. A crane used for port operations, including a main girder (1), two girders (11) are fixedly connected to both sides of the lower surface of the main girder (1), and each two girders (11) are far away from the main girder. One side of the beam (1) is fixedly installed with a sliding seat (12), which is characterized in that: the upper surface of the main beam (1) is provided with a slideway groove (14), and the inside of the slideway groove (14) is provided with The opening that communicates with the outer bottom of the main beam (1), the sliding platform (16) is slidably connected to the inside of the slideway groove (14), the upper surface of the sliding platform (16) is set as an opening, and the outside of the sliding platform (16) is set There is a trolley assembly (2) for driving the slide table (16) to move, the outside of the slide table (16) is fixedly connected with a first drive motor (17), and the output shaft of the first drive motor (17) runs through the slide table (16) ) and will enter the inside of the sliding table (16), the output shaft of the first driving motor (17) is fixedly sleeved with the wire barrel (18), and the inside of the wire barrel (18) is fixedly connected with the first steel wire rope (13), the second A wire rope (13) is wound inside the wire barrel (18) and extends to the bottom of the main beam (1) through the slideway groove (14). The end of the first wire rope (13) away from the wire barrel (18) is fixedly connected with a suspension platform ( 19), the lower end of the suspension platform (19) is fixedly connected with a lifting hook (15), and the outside of the first steel wire rope (13) is provided with a supporting component (3) for improving the lowering stability of the lifting hook (15) and In the stable support component (4), a linkage component (7) for transmission with the stable support component (4) is arranged outside the bobbin (18). 2. A crane for port operations according to claim 1, characterized in that: the trolley assembly (2) includes a second drive motor (21), a mobile platform (22) and a mobile cog (23 ), the mobile station (22) is fixedly connected to the side of the slide table (16) away from the first drive motor (17), the second drive motor (21) is fixedly connected to the outside of the mobile station (22), and the mobile station (22 ) The side close to the surface of the main beam (1) is made hollow, the output shaft of the second drive motor (21) moves through and enters the hollow of the mobile platform (22), and the output shaft of the second drive motor (21) is fixed externally The rotating tooth (24) is sleeved, and the moving tooth groove (23) is opened on the side of the main beam (1) close to the mobile platform (22), and the rotating tooth (24) is meshed and connected to the inside of the moving tooth groove (23). 3. A crane for port operations according to claim 1, characterized in that: the support assembly (3) includes a support platform (31) and connecting plates (32), the number of connecting plates (32) The two connecting plates (32) are fixedly connected to the side of the support platform (31) close to the sliding platform (16), and the support platform (31) is slidably connected to the side of the main beam (1) through the connecting plate (32). lower surface, and the supporting platform (31) is movably sleeved on the outside of the first steel wire rope (13). 4. A crane for port operations according to claim 3, characterized in that: the support assembly (3) also includes a rotating wheel (33), a fixed platform (34) and a lower notch (35) , the lower notch (35) is provided on the side of the main beam (1) close to the support platform (31), the fixed platform (34) is fixedly connected to the side of the support platform (31) close to the main beam (1), and the fixed platform ( 34) is U-shaped, and the inside of the fixed table (34) is connected to the rotating wheel (33) through the rotation of the rotating shaft, and the rotating wheel (33) is connected to the inside of the lower notch (35) in rotation. 5. A crane for port operations according to claim 1 or 3, characterized in that: the number of the stable support assemblies (4) is set to two, and the two stable support assemblies (4) are respectively arranged on On both sides of the lower surface of the support platform (31), each stable support assembly (4) includes two fixed plates (41), and the two fixed plates (41) are fixedly connected to the two sides of the lower surface of the support platform (31). side, the side of the two fixed plates (41) that are close to each other is rotatably connected with the central shaft (45), and the outer surface of the central shaft (45) is fixedly sleeved with the drum (42), and the outer surface of the drum (42) is fixedly connected There is a second wire rope (43), the second wire rope (43) is wound around the outside of the drum (42), and the end of the second wire rope (43) away from the drum (42) is fixedly connected to the outside of the suspension platform (19). 6. A crane for port operations according to claim 5, characterized in that: an inner groove (44) is opened inside the fixed plate (41) on one side, and one end of the central shaft (45) is movable Through the fixed plate (41) on one side and extend to the inside of the inner groove (44), the outer fixed sleeve of the central shaft (45) is connected with set teeth (46), and the outer meshing connection of the set teeth (46) is connected with connecting teeth ( 47), the inside of the connecting tooth (47) is fixedly connected with a round shaft (48), and the two ends of the round shaft (48) are respectively connected to both sides of the inner wall of the inner groove (44) in rotation. 7. A crane for port operations according to claim 1 or 3, characterized in that: the linkage assembly (7) includes an inner cavity (71), a first rotating roller (72), a first transmission belt (73), the second rotating roller (74) and the second transmission belt (75), the inner cavity (71) is set inside the supporting platform (31), and the two ends of the first rotating roller (72) are respectively connected to the inner cavity (71) The two sides of the inner wall and the two sides inside the second drive belt (75) are respectively movably socketed on the outside of the first rotating roller (72) and the output shaft of the first drive motor (17), and the second drive belt (75) passes through The output shaft of the first drive motor (17) drives the rotation. 8. A crane for port operations according to claim 7, characterized in that: the number of the second rotating rollers (74) is two, and the two second rotating rollers (74) are respectively connected in rotation On both sides of the inner cavity (71), the first transmission belt (73) is movably sleeved on the outside of the two second rotating rollers (74), and the second rotating rollers (74) are engaged with the connecting teeth (47). 9. A crane for port operations according to claim 6, characterized in that: the outside of the fixed plate (41) is provided with a steering assembly (5) for supporting the drum (42), and the steering assembly ( 5) Including a turning plate (51), the turning plate (51) is fixedly connected to the outside of the fixing plate (41), the lower surface of the turning plate (51) is fixedly connected to a short plate (52), and the inside of the short plate (52) A wire slot (53) is provided, and the second steel wire rope (43) moves through the wire slot (53) and extends to be fixed to the outside of the suspension platform (19); The inner wall of the trunking (53) is provided with a bottom groove (55), and both sides of the inner wall of the bottom groove (55) are provided with side grooves (54), and a sleeve shaft (58) is slidingly connected between the two side grooves (54). , the outer movable sleeve of the sleeve shaft (58) is connected with the wire pulley (57), and the wire pulley (57) is connected to the inside of the wire slot (53) through the rotation of the sleeve shaft (58), and the second wire rope (43) overlaps On the outer surface of the hanging wheel (57), the both sides of the sleeve shaft (58) are movably socketed with flashboards (56), and the flashboards (56) are slidably connected to the inside of the side grooves (54), and the flashboards ( The lower end of 56) is fixedly connected with a spring (59), and the end of the spring (59) away from the flashboard (56) is fixedly connected to the inner wall of the side groove (54).

Images