CN116477466A

CN116477466A - Port gantry crane

Info

Publication number: CN116477466A
Application number: CN202211393195.1A
Authority: CN
Inventors: 吴同; 梁宇琪; 肖伟
Original assignee: Anhui Institute of Information Engineering
Current assignee: Anhui Institute of Information Engineering
Priority date: 2022-11-08
Filing date: 2022-11-08
Publication date: 2023-07-25

Abstract

The invention relates to the technical field of cranes, in particular to a port gantry crane, which comprises a top seat and a supporting arm; further comprises: the mounting frame is mounted at the bottom of the top seat; the roller is rotatably arranged in the inner cavity of the mounting frame; the first motor is mounted on one side wall of the mounting frame; the steel wire rope is wound and connected on the roller wall of the roller; the bottom of wire rope runs through the installing frame can produce gravity through the goods when the lifting hook drives the goods to rise, can realize driving roof downward movement, and the montant drives the inboard motion cover of U shaped plate through the link plate and establishes in the outside of lifting hook, can realize spacing to the lifting hook, prevents its deflection, can effectually avoid the goods to rise the in-process and take place pivoted condition to the lifting hook that proposes in the solution above-mentioned background art drives the goods and rises the in-process and rotate easily, has the problem of great potential safety hazard.

Description

Port gantry crane

Technical Field

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

Background

The gantry crane is a bridge crane with a horizontal bridge frame arranged on two supporting legs to form a portal frame shape. The crane runs on ground rails and is mainly used for carrying and installing in open-air storage yards, docks, power stations, ports, railway freight stations and the like. The lifting mechanism, the trolley running mechanism and the bridge structure of the gantry crane are basically the same as those of the bridge crane.

In the past, the lifting hook of the crane is arranged in a rotating way for conveniently hooking up the goods, and in the lifting process after hooking up the goods, the lifting hook often drives the goods to rotate, and particularly under the influence of wind force, the condition that overload load is caused to occur to equipment due to easy force generation of the condition, so that the use effect is not ideal enough due to the fact that the potential safety hazard is large.

For this purpose, a port gantry crane is proposed.

Disclosure of Invention

The invention aims to provide a port gantry crane, which solves the problems that the lifting hook provided in the background art drives goods to rotate easily in the lifting process and has larger potential safety hazard.

In order to achieve the above purpose, the present invention provides the following technical solutions:

a port gantry crane comprises a top seat and a supporting arm; further comprises: the mounting frame is mounted at the bottom of the top seat; the roller is rotatably arranged in the inner cavity of the mounting frame; the first motor is mounted on one side wall of the mounting frame; the steel wire rope is wound and connected on the roller wall of the roller; the bottom of the steel wire rope penetrates through the mounting frame, and the steel wire rope is in sliding connection with the mounting frame.

Preferably, the shell is installed to wire rope's bottom, shell inner wall sliding connection has the roof, the below of shell is provided with two revolving boards, two revolving boards rotate to be connected, the upside evenly fixedly connected with a plurality of bracing pieces in the top of revolving boards, each group the top of bracing piece is all run through the shell with roof fixed connection, each group the bracing piece all with shell sliding connection, the bottom of roof with evenly install a plurality of first springs between the inner chamber bottom of shell, the downside the lifting hook is installed to the bottom of revolving boards, be provided with in the shell and prevent deflection mechanism.

Through when the goods are hooked on the lifting hook, the lifting hook can generate gravity through the goods, the rotating plate can drive the top plate to move downwards through the supporting rod and extrude the first spring, and the follow-up anti-deflection mechanism, the overload reminding mechanism and the overload protection mechanism can be opened.

Preferably, the deflection preventing mechanism comprises two vertical rods, the two vertical rods are symmetrically and fixedly arranged at the bottom of the top plate, the two vertical rods are in sliding connection with the shell, the two vertical rods are movably arranged at the bottom ends of the vertical rods, the mounting plate is mounted at the rear side of the bottom of the shell, the two symmetrically arranged U-shaped plates are in sliding connection with the front wall of the mounting plate, the two U-shaped plates are movably connected with the bottom ends of the adjacent connecting plates, the two U-shaped plates are positioned at the two sides of the lifting hook, and the overload reminding mechanism is mounted at the bottom of the inner cavity of the shell.

When the goods are hooked on the lifting hook, the lifting hook can generate gravity through the goods, the rotating plate can drive the top plate to move downwards through the supporting rod and extrude the first spring, the vertical rod can move downwards through the connecting plate to drive the U-shaped plate to move inwards, the two U-shaped plates can be mutually close to the outer side of the lifting hook in a sleeved mode, limiting on the lifting hook can be achieved, and deflection of the lifting hook is prevented.

Preferably, the overload reminding mechanism comprises a second spring, the top end of the second spring and the bottom of the top plate are provided with first contact blocks, an alarm is installed on one side wall of the shell, the two first contact blocks are electrically connected with the alarm together, and an overload protection mechanism is arranged above the shell.

When the weight of goods is large, and the weight exceeds the rated load of equipment, the rotating plate can drive the top plate to move downwards through the supporting rod and extrude the first spring, and the two first contact blocks are in contact, so that the alarm can be controlled to be started to remind.

Preferably, the overload protection mechanism comprises risers, each group of risers are fixedly connected with the bottom of the installation frame, a winding drum is arranged between every two adjacent risers, each winding drum is rotatably connected with each group of risers through a rotating shaft, ropes are wound on the roller walls of each winding drum, the bottom ends of the ropes are fixedly connected with the top of the shell, a second motor is arranged on one side of each winding drum, the output end of the second motor is fixedly connected with the rotating shaft on each winding drum, and the first contact blocks are jointly electrically connected with the second motor.

When two first contact blocks contact, can control the second motor to open simultaneously, can realize at this moment that the output shaft of second motor drives two reels through the pivot and rotates, can realize rolling to tight state to the rope and hold the shell, reaches overload protection's purpose, and the lifting hook drives the condition that the goods appears droing when can effectually preventing overload.

Preferably, the oil storage cavity has been seted up in the top of installing frame, the ball groove has all been seted up outward to the both ends bearing of roller, two even movable mounting has a plurality of balls in the ball groove, each group the ball all contacts with adjacent the bearing on the roller, two the ball groove all through the through-hole with the inside in oil storage cavity is linked together, all be provided with sealing mechanism on the both sides inner wall of installing frame.

The lubricating oil in the oil storage cavity can enter the ball groove through the through hole and lubricate the balls, and the rotating shaft on the roller can be lubricated through the balls, so that the rotating effect of the roller can be effectively improved.

Preferably, the sealing mechanism comprises sealing frames, two sealing frames are sleeved on the rotating shafts of the adjacent winding rollers, the two sealing frames are fixedly connected with the inner walls of the mounting frames, and recovery mechanisms are arranged on the outer walls of the two side walls of the mounting frames.

Through the setting of sealing frame, can realize preventing unnecessary lubricating oil discharge in the roller pivot, reach sealed purpose to follow-up recovery to it.

Preferably, the recovery mechanism comprises a collection frame, the tops of the two collection frames are movably connected with a sleeve, a third spring is installed between the bottom of the sleeve and the collection frame, a connecting pipe is movably inserted into the top of the sleeve, and the top end of the connecting pipe penetrates through the installation frame and is fixedly connected with the sealing frame.

The lubricating oil in the sealing frame can be discharged into the collecting frame through the connecting pipe, so that the purpose of collecting is achieved, when the collecting frame needs to be taken down, the sleeve is only required to be pressed downwards to extrude the third spring, the sleeve is enabled to move to the lower side of the connecting pipe, and the collecting frame can be taken down.

Preferably, the top sliding connection of collecting the frame has the kicking bar, the oil slider is installed to the bottom of kicking bar, the top of kicking bar is provided with the U-shaped frame, the U-shaped frame with collect the top fixed connection of frame.

When the lubricating oil collected in the collecting frame becomes more, the oil floating block can be driven to move upwards, so that the floating rod moves upwards to enable the two second contact blocks to be contacted, and the subsequent lamp can be conveniently triggered to be lighted.

Preferably, the top end of the floating rod and the top of the inner cavity of the U-shaped frame are provided with second contact blocks, the side walls of the two collecting frames are provided with lamps, and the two adjacent second contact blocks are jointly and electrically connected with the adjacent lamps.

When the two second contact blocks are in contact, the control lamp can be turned on, and the reminding purpose is achieved, so that workers can be reminded to take out the lamp for recycling.

Compared with the prior art, the invention has the beneficial effects that:

1. when the lifting hook drives the goods to lift, gravity is generated through the goods, the top plate can be driven to move downwards, the vertical rod drives the U-shaped plate to move inwards through the connecting plate to be sleeved on the outer side of the lifting hook, the lifting hook can be limited, the deflection of the lifting hook is prevented, and the situation that the goods rotate in the lifting process can be effectively avoided.

2. When the weight of goods is great, when exceeding equipment rated load, can realize that two first contact blocks contact, alarm warning work can control the second motor to open simultaneously and make the rope wind to tight state and hold the shell, reaches overload protection's purpose, and the lifting hook drives the condition that drops to appear when can effectually preventing overload.

Drawings

FIG. 1 is an overall cross-sectional view of the present invention;

FIG. 2 is a front view of the housing of the present invention;

FIG. 3 is an enlarged view of the structure of portion A of FIG. 1 in accordance with the present invention;

FIG. 4 is an enlarged view of the structure of portion B of FIG. 1 in accordance with the present invention;

FIG. 5 is an enlarged view of the structure of portion C of FIG. 4 in accordance with the present invention;

fig. 6 is an enlarged view of the structure of the portion D in fig. 1 according to the present invention.

In the figure: 1. a top base; 2. a support arm; 3. a mounting frame; 4. a roller; 5. a first motor; 6. a wire rope; 7. a housing; 8. a top plate; 9. a rotating plate; 10. a lifting hook; 11. a support rod; 12. a first spring; 13. a vertical rod; 14. a connecting plate; 15. a U-shaped plate; 16. a mounting plate; 17. a second spring; 18. a first contact block; 19. an alarm; 20. a riser; 21. a reel; 22. a rope; 23. a second motor; 24. an oil storage chamber; 25. a through hole; 26. a ball groove; 27. a ball; 28. a sealing frame; 29. a collection frame; 30. a connecting pipe; 31. an oil float block; 32. a floating rod; 33. a U-shaped frame; 34. a second contact block; 35. a lamp; 36. a sleeve; 37. and a third spring.

Detailed Description

The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.

Referring to fig. 1 to 6, the present invention provides a portal crane for a port, which has the following technical scheme:

a port gantry crane comprises a top seat 1 and a supporting arm 2; further comprises: the mounting frame 3 is mounted at the bottom of the top seat 1; the roller 4 is rotatably arranged in the inner cavity of the mounting frame 3; a first motor 5, the first motor 5 being mounted on one side wall of the mounting frame 3; the steel wire rope 6 is wound on the roller wall of the roller 4; the bottom of wire rope 6 runs through installing frame 3, and wire rope 6 and installing frame 3 sliding connection.

As an embodiment of the present invention, referring to fig. 1, 2, 3 and 6, a housing 7 is installed at the bottom end of the wire rope 6, and the inner wall of the housing 7 slides. Be connected with roof 8, the below of shell 7 is provided with two revolving boards 9, two revolving boards 9 rotate to be connected, the even fixedly connected with of top of upside revolving board 9 a plurality of bracing pieces 11, the top of each group bracing piece 11 all runs through shell 7 and roof 8 fixed connection, each group bracing piece 11 all with shell 7 sliding connection, evenly install a plurality of first springs 12 between the bottom of roof 8 and the inner chamber bottom of shell 7, lifting hook 10 is installed to the bottom of downside revolving board 9, be provided with in the shell 7 and prevent deflection mechanism.

The specific working process is as follows: through when the goods are hooked on the lifting hook 10, the lifting hook 10 can generate gravity through the goods, the rotating plate 9 can drive the top plate 8 to move downwards through the supporting rod 11 and extrude the first spring 12, and the follow-up anti-deflection mechanism, the overload reminding mechanism and the overload protection mechanism can be opened.

As an implementation mode of the invention, referring to fig. 1, 2 and 3, the anti-deflection mechanism comprises two vertical rods 13, the two vertical rods 13 are symmetrically and fixedly installed at the bottom of the top plate 8, the two vertical rods 13 are slidably connected with the housing 7, the bottom ends of the two vertical rods 13 are movably provided with connecting plates 14, a mounting plate 16 is installed at the rear side of the bottom of the housing 7, the front wall of the mounting plate 16 is slidably connected with two symmetrically arranged U-shaped plates 15, the two U-shaped plates 15 are movably connected with the bottom ends of the adjacent connecting plates 14, the two U-shaped plates 15 are located at two sides of the lifting hook 10, and the overload reminding mechanism is installed at the bottom of the inner cavity of the housing 7.

The specific working process is as follows: when the lifting hook 10 is hooked with a cargo, the lifting hook 10 can generate gravity through the cargo, the rotating plate 9 can drive the top plate 8 to move downwards through the supporting rod 11 and extrude the first spring 12, the vertical rod 13 can move downwards through the connecting plate 14 to drive the U-shaped plate 15 to move inwards, the two U-shaped plates 15 can be mutually close to and sleeved on the outer side of the lifting hook 10, the lifting hook 10 can be limited, and deflection of the lifting hook 10 is prevented.

As an embodiment of the present invention, referring to fig. 1 and 3, the overload reminding mechanism includes a second spring 17, first contact blocks 18 are mounted on the top end of the second spring 17 and the bottom of the top plate 8, an alarm 19 is mounted on a side wall of the housing 7, the two first contact blocks 18 are electrically connected with the alarm 19 together, and an overload protection mechanism is disposed above the housing 7.

The specific working process is as follows: when the weight of the goods is large and exceeds the rated load of the equipment, the rotating plate 9 can drive the top plate 8 to move downwards through the supporting rod 11 and press the first springs 12, the two first contact blocks 18 are in contact, and at the moment, the alarm 19 is controlled to be started to remind.

As an embodiment of the present invention, referring to fig. 1, the overload protection mechanism includes risers 20, each group of risers 20 is fixedly connected with the bottom of the installation frame 3, a drum 21 is disposed between two adjacent risers 20, two drums 21 are rotatably connected with each group of risers 20 through a rotating shaft, ropes 22 are wound on roller walls of the two drums 21, bottom ends of the two ropes 22 are fixedly connected with the top of the housing 7, a second motor 23 is mounted on a side wall of one side of the risers 20, an output end of the second motor 23 is fixedly connected with the rotating shaft on the drum 21, and the two first contact blocks 18 are electrically connected with the second motor 23 together.

The specific working process is as follows: when two first contact blocks 18 contact, can control second motor 23 to open simultaneously, can realize at this moment that the output shaft of second motor 23 drives two reels 21 through the pivot and rotates, can realize rolling to the tight state to the rope 22 and hold shell 7, reaches overload protection's purpose, can effectually prevent that lifting hook 10 drives the condition that the goods appears droing when overload.

As an embodiment of the present invention, referring to fig. 1 and 4, an oil storage cavity 24 is formed in the top of the mounting frame 3, ball grooves 26 are formed outside bearings at both ends of the roller 4, a plurality of balls 27 are uniformly and movably mounted in the two ball grooves 26, each set of balls 27 is contacted with bearings on the adjacent roller 4, the two ball grooves 26 are communicated with the inside of the oil storage cavity 24 through a through hole 25, and sealing mechanisms are arranged on inner walls at both sides of the mounting frame 3.

The specific working process is as follows: the lubricating oil in the oil storage cavity 24 can enter the ball groove 26 through the through hole 25 and lubricate the ball 27, and the rotating shaft on the roller 4 can be lubricated through the ball 27, so that the rotating effect of the roller 4 can be effectively improved.

As an embodiment of the present invention, referring to fig. 4, the sealing mechanism includes sealing frames 28, two sealing frames 28 are respectively sleeved on the rotating shafts of the adjacent rollers 4, the two sealing frames 28 are respectively fixedly connected with the inner wall of the mounting frame 3, and recovery mechanisms are respectively arranged on the outer walls of the two side walls of the mounting frame 3.

The specific working process is as follows: by the arrangement of the sealing frame 28, the redundant lubricating oil on the rotating shaft of the roller 4 can be prevented from being discharged, and the purpose of sealing is achieved, so that the roller is convenient to recover later.

As an embodiment of the present invention, referring to fig. 1, 4 and 5, the recovery mechanism includes a collection frame 29, the top of two collection frames 29 is movably connected with a sleeve 36, a third spring 37 is installed between the bottom of the sleeve 36 and the collection frame 29, a connection pipe 30 is movably inserted into the top of the sleeve 36, and the top end of the connection pipe 30 is fixedly connected with the sealing frame 28 through the mounting frame 3.

The specific working process is as follows: the lubricating oil in the sealing frame 28 can be discharged into the collecting frame 29 through the connecting pipe 30, so that the purpose of collecting is achieved, and when the collecting frame 29 needs to be taken down, the sleeve 36 only needs to be pressed down to press the third spring 37, and the sleeve 36 is enabled to move to the lower side of the connecting pipe 30, so that the collecting frame 29 can be taken down.

As an embodiment of the present invention, referring to fig. 1, 4 and 5, a floating rod 32 is slidably connected to the top of the collecting frame 29, an oil float 31 is mounted to the bottom of the floating rod 32, a U-shaped frame 33 is disposed above the floating rod 32, and the U-shaped frame 33 is fixedly connected to the top of the collecting frame 29.

The specific working process is as follows: when the amount of the lubricating oil collected in the collection frame 29 increases, the oil float 31 can be driven to move upwards, so that the float rod 32 moves upwards to enable the two second contact blocks 34 to be contacted, and the subsequent lamp 35 can be triggered to light.

As an embodiment of the present invention, referring to fig. 4, the top end of the floating rod 32 and the top of the inner cavity of the U-shaped frame 33 are both provided with the second contact blocks 34, the side walls of the two collecting frames 29 are both provided with the lamps 35, and the two adjacent second contact blocks 34 are electrically connected with the adjacent lamps 35 together.

The specific working process is as follows: when the two second contact blocks 34 are in contact, the control lamp 35 can be turned on, so that the reminding purpose is achieved, and workers can be reminded to take out the lamp for recycling.

Working principle: firstly, the first motor 5 is started, the output shaft of the first motor 5 drives the winding roller 4 to rotate through the rotating shaft, the winding roller 4 can start to release the steel wire rope 6, the steel wire rope 6 can be driven to move downwards through the gravity effect of the shell 7 and the lifting hook 10, meanwhile, the shell 7 drives the winding drum 21 to rotate through the rope 22 and drives the output shaft of the second motor 23 to rotate, and after the lifting hook 10 is placed at a position of goods downwards, the lifting hook 10 is hooked at the hooked end of the goods.

When the lifting hook 10 is used for hooking cargoes, the lifting hook 10 can generate gravity through the cargoes, the rotating plate 9 can drive the top plate 8 to move downwards through the supporting rod 11 and extrude the first spring 12, the vertical rod 13 can move downwards through the connecting plate 14 to drive the U-shaped plate 15 to move inwards, the two U-shaped plates 15 can be mutually close to be sleeved outside the lifting hook 10, the lifting hook 10 can be limited to prevent deflection of the lifting hook 10, when the gravity of the cargoes is large, the rotating plate 9 can drive the top plate 8 to move downwards through the supporting rod 11 and extrude the first spring 12, the two first contact blocks 18 are in contact, at the moment, the alarm 19 can be controlled to be started to remind a user, the second motor 23 can be controlled to be started, at the moment, the output shaft of the second motor 23 can drive the two drums 21 to rotate through the rotating shaft, the rope 22 can be wound to a tight state, and the shell 7 can be pulled and held, and the overload protection purpose is achieved.

When the roller 4 rotates, the lubricating oil in the oil storage cavity 24 can enter the ball groove 26 through the through hole 25 and lubricate the ball 27, the rotating shaft on the roller 4 can be lubricated through the ball 27, the rotating effect of the roller 4 can be effectively improved, the redundant lubricating oil on the rotating shaft of the roller 4 can be prevented from being discharged through the arrangement of the sealing frame 28, the sealing purpose is achieved, the lubricating oil in the sealing frame 28 can be discharged into the collecting frame 29 through the connecting pipe 30, when the collecting frame 29 needs to be taken down, the sleeve 36 only needs to be pressed downwards to extrude the third spring 37, the sleeve 36 can be made to move to the lower part of the connecting pipe 30, the collecting frame 29 can be taken down, when the lubricating oil collected in the collecting frame 29 becomes more, the upward movement of the oil floating block 31 can be driven, the upward movement of the floating rod 32 can be made to make the two second contact blocks 34 be connected, the control lamp 35 can be lightened, the reminding purpose can be achieved, and the staff can be reminded to take out and recycle the lubricating oil conveniently.

Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. A port gantry crane comprises a top seat (1) and a supporting arm (2);

the method is characterized in that: further comprises:

the mounting frame (3) is mounted at the bottom of the top seat (1);

the roller (4) is rotatably arranged in the inner cavity of the mounting frame (3);

a first motor (5), wherein the first motor (5) is arranged on one side wall of the mounting frame (3);

the steel wire rope (6) is wound and connected on the roller wall of the roller (4); the bottom end of the steel wire rope (6) penetrates through the mounting frame (3), and the steel wire rope (6) is in sliding connection with the mounting frame (3).

2. A port gantry crane according to claim 1, characterized in that: the utility model discloses a wire rope, including shell (7), steel wire rope (6), shell (7) inner wall sliding connection has roof (8), the below of shell (7) is provided with two revolving boards (9), two revolving boards (9) rotate to be connected, and the upside evenly fixedly connected with a plurality of bracing pieces (11) in the top of revolving boards (9), each group bracing piece (11) the top all runs through shell (7) with roof (8) fixed connection, each group bracing piece (11) all with shell (7) sliding connection, the bottom of roof (8) with evenly install a plurality of first springs (12) between the inner chamber bottom of shell (7), the downside lifting hook (10) are installed to the bottom of revolving boards (9), be provided with in shell (7) and prevent deflection mechanism.

3. A port gantry crane according to claim 2, characterized in that: the anti-deflection mechanism comprises two vertical rods (13), wherein the two vertical rods (13) are symmetrically and fixedly arranged at the bottom of the top plate (8), the two vertical rods (13) are in sliding connection with the shell (7), the two vertical rods (13) are movably arranged at the bottom of the shell (7), the mounting plate (16) is arranged at the rear side of the bottom of the shell (7), the front wall of the mounting plate (16) is in sliding connection with two symmetrically arranged U-shaped plates (15), the two U-shaped plates (15) are all in movable connection with the bottom of the adjacent connecting plate (14), the two U-shaped plates (15) are located at the two sides of the lifting hook (10), and the overload reminding mechanism is arranged at the bottom of the inner cavity of the shell (7).

4. A port gantry crane according to claim 3, characterized in that: the overload reminding mechanism comprises a second spring (17), first contact blocks (18) are arranged at the top end of the second spring (17) and the bottom of the top plate (8), an alarm (19) is arranged on one side wall of the shell (7), the two first contact blocks (18) are electrically connected with the alarm (19) together, and an overload protection mechanism is arranged above the shell (7).

5. The port gantry crane of claim 4, wherein: the overload protection mechanism comprises risers (20), each group of risers (20) are fixedly connected with the bottom of the mounting frame (3), two adjacent risers (20) are provided with reels (21), each group of reels (21) are rotatably connected with the corresponding group of risers (20) through rotating shafts, ropes (22) are wound on roller walls of the reels (21), the bottoms of the ropes (22) are fixedly connected with the top of the shell (7), a second motor (23) is mounted on one side of the side wall of the risers (20), the output ends of the second motor (23) are fixedly connected with the rotating shafts on the reels (21), and the two first contact blocks (18) are jointly electrically connected with the second motor (23).

6. A port gantry crane according to claim 1, characterized in that: an oil storage cavity (24) is formed in the top of the mounting frame (3), ball grooves (26) are formed in the outer sides of bearings at the two ends of the roller (4), a plurality of balls (27) are uniformly and movably mounted in the ball grooves (26), the balls (27) are in contact with the bearings on the roller (4) adjacent to each other, the ball grooves (26) are communicated with the inside of the oil storage cavity (24) through holes (25), and sealing mechanisms are arranged on the inner walls of the two sides of the mounting frame (3).

7. The port gantry crane of claim 6, wherein: the sealing mechanism comprises sealing frames (28), two sealing frames (28) are sleeved on the rotating shafts of the adjacent winding rollers (4), the two sealing frames (28) are fixedly connected with the inner wall of the mounting frame (3), and recovery mechanisms are arranged on the outer walls of the two side walls of the mounting frame (3).

8. The port gantry crane of claim 7, wherein: the recovery mechanism comprises a collection frame (29), two top movable connection of the collection frame (29) is provided with a sleeve (36), a third spring (37) is arranged between the bottom of the sleeve (36) and the collection frame (29), a connecting pipe (30) is movably inserted into the top of the sleeve (36), and the top of the connecting pipe (30) penetrates through the mounting frame (3) and is fixedly connected with the sealing frame (28).

9. The port gantry crane of claim 8, wherein: the top sliding connection of collection frame (29) has puddle (32), oil slider (31) are installed to the bottom of puddle (32), the top of puddle (32) is provided with U-shaped frame (33), U-shaped frame (33) with the top fixed connection of collection frame (29).

10. A port gantry crane according to claim 9, characterized in that: the top of the floating rod (32) and the top of the inner cavity of the U-shaped frame (33) are provided with second contact blocks (34), the side walls of the two collecting frames (29) are provided with lamps (35), and the two adjacent second contact blocks (34) are electrically connected with the adjacent lamps (35) together.