CN216583827U - Ship lock maintenance door machine - Google Patents

Abstract

The application provides a ship lock overhauls a quick-witted, relates to ship lock and overhauls equipment technical field. The ship lock includes that the storage door storehouse and the access door groove that perpendicular to rivers direction was laid, and ship lock access door machine includes: the portal comprises portal legs, an upper longitudinal beam and an upper cross beam, and the upper longitudinal beam and the upper cross beam are connected to the top ends of the portal legs; the travelling mechanism is arranged on the door legs and can drive the door frame to transversely move between the door storage and the access door groove along the direction perpendicular to the water flow; the lifting mechanism is used for lifting the maintenance gate and is arranged on the upper longitudinal beam; the rotary lifting device is arranged on the upper cross beam and used for lifting materials. The ship lock maintenance portal crane makes full use of the upper cross beam structure, increases the lifting capacity, avoids influencing the structure, makes full use of the limited space, greatly improves the maintenance efficiency of the ship lock, and ensures the operation safety of the ship lock gate and the hoist.

Description

Ship lock maintenance door machine

Technical Field

The application relates to the technical field of ship lock maintenance equipment, particularly, relates to a ship lock maintenance portal crane.

Background

At present, in the overall design of a ship lock, a portal hoist is usually only used for lifting and transporting a ship lock maintenance gate. The construction and installation of the working gate, the working valve, the hydraulic hoist and the ship lock body, and the daily overhaul and maintenance and overhaul projects adopt an automobile type or floating type mobile crane to realize the hoisting and transferring operation. The rail perpendicular to lock chamber longitudinal arrangement of the gantry hoist of access door, in order to satisfy the requirement of navigation headroom, the hydraulic structure adopts the design form of reinforced concrete stand bent, and the construction investment is high, the cycle length, and the view nature is poor etc. is not enough.

Wherein, in the routine maintenance process, the river side is transported to from the land side to the difficulty of lock both sides work gate, valve, hydraulic pressure spare part, and unable timely maintenance influences water route transportation.

SUMMERY OF THE UTILITY MODEL

An object of this application is to provide a ship lock overhauls a quick-witted, and it can improve current maintenance in-process, and the transportation of spare part is inconvenient and lead to overhauing untimely, influences the problem of water route traffic.

The embodiment of the application is realized as follows:

the embodiment of the application provides a ship lock access door machine for deliver the material on the ship lock, the ship lock includes storage door storehouse and access door groove that perpendicular to rivers direction was laid, ship lock access door machine includes:

the door frame comprises door legs, an upper longitudinal beam and an upper cross beam, and the upper longitudinal beam and the upper cross beam are connected to the top ends of the door legs;

the travelling mechanism is arranged on the door legs and can drive the door frame to transversely move between the door storage and the access door slot along the direction perpendicular to the water flow;

the lifting mechanism is used for lifting the maintenance gate and is arranged on the upper longitudinal beam;

and the rotary lifting device is arranged on the upper cross beam and is used for lifting materials.

The portal frame can be under running gear's drive and can store up a storehouse and overhaul the round trip movement between the gate groove, and the device that rises can hoist the inspection gate, and along with the portal removes, the gyration hoist device then can the handling overhaul the material beyond the gate, equally can be along with portal round trip movement, with the transportation material, make the transportation from the land side of navigation lock to river side of the used material of maintenance more convenient, be convenient for improve maintenance efficiency, avoid influencing the navigation.

In addition, the ship lock maintenance portal crane provided according to the embodiment of the application can also have the following additional technical characteristics:

in an optional embodiment of the application, the rotary lifting device comprises a fixed support, an arm support, a rotary power mechanism, a rotary support and a lifting mechanism, the fixed support is connected to the upper cross beam, the rotary support is arranged on the fixed support, the rotary power mechanism is in transmission connection with the arm support through the rotary support to drive the arm support to rotate, and the lifting mechanism is movably connected to the arm support.

The lifting mechanism can lift materials up and down, the arm support provides movable support for translation of the materials, and the rotary power mechanism is matched with the rotary bearing to enable the materials to be moved within a certain rotation range so as to facilitate lifting or discharging.

In an optional embodiment of the application, the upper cross beam comprises a connecting section and an extension section, the extension section is connected with the connecting section and extends along the length direction of the connecting section, the connecting section is used for connecting the door leg and the upper longitudinal beam, the extension section is used for installing the rotary lifting device, and the projection of the rotary lifting device in the vertical direction is not overlapped with the projection of the upper longitudinal beam and the projection of the lifting mechanism in the vertical direction.

Because the projection of the rotary hoisting device in the vertical direction is not overlapped with the upper longitudinal beam and the hoisting mechanism, the rotary hoisting device can not be interfered when in work, and the space of the extension section can be effectively utilized, so that the function is realized and the trouble caused by insufficient space is avoided in the limited space of the ship lock.

In an optional embodiment of the application, the arm support is an L-shaped arm support, the L-shaped arm support includes a first arm and a second arm, the slewing crane device further includes a reinforcing arm, and two ends of the reinforcing arm are respectively connected to the first arm and the second arm and form a triangular structure with the first arm and the second arm.

The L-shaped arm support is matched with the reinforcing arm, so that the whole structure stability is better, the operation of the hoisting mechanism is more stable, and the overturning of the whole rotary hoisting device is avoided.

In an alternative embodiment of the application, the handling mechanism is movably arranged to the first arm, which extends in a horizontal direction.

The first arm provides a guide and a moving basis for the translation of the hoisting mechanism.

In an optional embodiment of the present application, the rotary hoisting device further includes a first limiting member and a second limiting member, and the first limiting member and the second limiting member are respectively disposed at two ends of the first arm to limit a moving range of the hoisting mechanism.

In an optional embodiment of the application, the rotating suspension device further includes a third limiting part and a trigger part, the third limiting part is disposed on the fixed support, the trigger part is disposed on the arm support, and the trigger part and the third limiting part are used for limiting a range of a working rotation angle of the arm support.

The third limiting part is matched with the trigger part, so that the range of the working rotating angle of the rotary lifting device is within a preset range, and interference with other mechanisms is avoided.

In an alternative embodiment of the present application, the range of the working rotation angle is H, satisfying 0 ≦ H ≦ 225.

Through the scope of design work rotation angle, can make full use of space, further promote the convenient degree of material handling.

In an alternative embodiment of the present application, the hoisting mechanism includes a first hoisting unit and a second hoisting unit, and the first hoisting unit and the second hoisting unit are respectively fixed to the upper longitudinal beam and respectively and independently operate.

The first unit and the second that rise together rise rises to rise the unit and can rise the gate as required, the common handling maintenance gate to can adjust the height of output and handling respectively, in order to adapt to the handling demand, the smooth handling of guarantee maintenance gate, also can consider simultaneously according to actual need, the suitable material of handling elevation, further promote the rate of utilization, improve maintenance efficiency.

In the optional embodiment of this application, ship lock access door machine includes the controller, the controller can the remote control running gear the hoisting mechanism with the work is put to the gyration hoist.

The corresponding mechanism is remotely controlled through the remote controller, so that an operator can finally move the rotary lifting device to a position convenient for operation according to the position condition when loading and unloading materials.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present application and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained from the drawings without inventive effort.

Fig. 1 is a schematic view of a ship lock service portal crane provided in an embodiment of the present application as it is deployed at a ship lock;

FIG. 2 is a front view of a ship lock access door machine;

FIG. 3 is a side view of a ship lock access door machine;

FIG. 4 is a top view of the ship lock service door machine;

figure 5 is a schematic view of a swing-sling device.

Icon: 1000-ship lock maintenance door machine; 11-door legs; 12-upper stringer; 13-upper cross beam; 131-a connecting segment; 132-an extension; 20-a running mechanism; 30-a hoisting mechanism; 31-a first lift unit; 32-a second hoist unit; 33-a movable pulley block device; 40-rotating a hoisting device; 41-fixed support; 421-a first arm; 422-a second arm; 43-a rotary power mechanism; 431-pinion gear; 44-a slewing bearing; 45-a hoisting mechanism; 451-hooks; 452-a control cable; 46-a reinforcing arm; 471-a first limit; 472-a second stop; 481 — third limit stop; 482-a trigger; 50-driver's cab; 60-electric room; 70-machine room; 80-a landing; 90-an anchoring device; 110-a power cable reel; 120-automatic beam grabbing device; 200-a door storage; 300-access door slot; 400-a herringbone gate; 500-gate head.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are some embodiments of the present application, but not all embodiments. The components of the embodiments of the present application, generally described and illustrated in the figures herein, can be arranged and designed in a wide variety of different configurations.

Thus, the following detailed description of the embodiments of the present application, presented in the accompanying drawings, is not intended to limit the scope of the claimed application, but is merely representative of selected embodiments of the application. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.

It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.

In the description of the present application, it should be noted that the terms "inside", "outside", and the like indicate orientations or positional relationships based on orientations or positional relationships shown in the drawings or orientations or positional relationships where the product is used as it is, and are used for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus should not be construed as limiting the present application. Furthermore, the terms "first," "second," and the like are used merely to distinguish one description from another, and are not to be construed as indicating or implying relative importance.

In the description of the present application, it is also to be noted that, unless otherwise explicitly specified or limited, the terms "disposed" and "connected" are to be interpreted broadly, e.g., as being either fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present application can be understood in a specific case by those of ordinary skill in the art.

Examples

Referring to fig. 1 to 4, an embodiment of the present application provides a ship lock maintenance door machine 1000 for delivering materials on a ship lock, the ship lock including a door storage 200 and a maintenance door slot 300 arranged perpendicular to a water flow direction, the ship lock maintenance door machine 1000 including:

the gantry comprises door legs 11, an upper longitudinal beam 12 and an upper cross beam 13, wherein the upper longitudinal beam 12 and the upper cross beam 13 are connected to the top ends of the door legs 11;

the travelling mechanism 20 is arranged on the door legs 11, and the travelling mechanism 20 can drive the door frame to transversely move between the door storage 200 and the access door slot 300 along the direction perpendicular to the water flow;

the hoisting mechanism 30 is used for hoisting the maintenance gate, and the hoisting mechanism 30 is arranged on the upper longitudinal beam 12;

the rotary lifting device 40 is arranged on the upper cross beam 13, and the rotary lifting device 40 is used for lifting materials.

The arrangement of the whole ship lock access door machine 1000 in the ship lock can refer to fig. 1, and the herringbone door 400, the door storage 200 and the access door slot 300 can refer to the existing structure. Fig. 1 shows the water flow direction by arrows and shows the river side and the land side by letters in order to understand the location where the ship lock inspection door machine 1000 is applied.

The ship lock maintenance portal crane 1000 comprises a controller, and the controller can remotely control the running mechanism 20, the lifting mechanism 30 and the rotary lifting device 40 to work. The corresponding mechanism is remotely controlled through a remote controller, so that an operator can finally move the rotary lifting device 40 to a position convenient for operation according to the position condition when loading and unloading materials. The controller may be a control system in the cab 50, or may be a control box or other equipment that can be moved with the operator, as long as the operation is convenient for the operator.

Simply speaking, the portal can be under the drive of running gear 20 store up the door storehouse 200 and overhaul the door groove 300 between round trip movement, the lifting device can hoist and overhaul the gate, and along with the portal removes, the gyration hoist device 40 then can the handling overhaul the material beyond the gate, equally can be along with the portal round trip movement, with the transportation material, it is more convenient to make the transportation from the land side to the river side of lock of the used material of maintenance, be convenient for improve maintenance efficiency, avoid influencing the navigation.

It is understood that the structures of the electric room 60, the machine room 70, the landing 80, the anchoring device 90, and the like of the conventional door machine may refer to common devices in the prior art, and in addition, the structures of the power cable reel 110, and the like are not improved, and the structures and functions of these existing devices may refer to the prior art, and are not described herein again. In the present embodiment, a cart running mechanism is employed as the traveling mechanism 20, which can reciprocate between the door stocker 200 and the access door slot 300 to transfer the material. In addition, the electric control system of the rotary lifting device 40 of the embodiment is directly arranged in the electric room 60, and an electric room is not required to be separately arranged, so that the windward area can be reduced, the wind load can be reduced, and the stability of the whole machine can be improved.

Referring to fig. 5, the slewing crane apparatus 40 of the present application includes a fixed support 41, an arm support, a slewing power mechanism 43, a slewing bearing 44, and a hoisting mechanism 45, wherein the fixed support 41 is connected to the upper beam 13, the slewing bearing 44 is disposed on the fixed support 41, the slewing power mechanism 43 is in transmission connection with the arm support through the slewing bearing 44 to drive the arm support to rotate, and the hoisting mechanism 45 is movably connected to the arm support.

The lifting mechanism 45 can lift materials up and down, the arm support provides movable support for translation of the materials, and the rotary power mechanism 43 is matched with the rotary bearing 44 to enable the materials to be moved within a certain rotation range so as to facilitate lifting or discharging. The rotation power mechanism 43 may adopt a motor and a speed reducer, and is driven by the pinion 431 and the rotation support 44.

In the embodiment, an electric hoist is adopted as the hoisting mechanism 45, for example, an electric hoist with a load of 3t can be selected, in fig. 5, the movable position of the hook 451 of the electric hoist is shown, the hooks 451 at the left and right ends are two limit positions where the hook 451 is shown in the middle in a transverse moving manner, and the control cable 452 can supply power to the electric hoist and transmit a control signal.

With reference to fig. 2 and fig. 4, the upper cross beam 13 of the present embodiment includes a connecting section 131 and an extending section 132, the extending section 132 is connected to the connecting section 131 and extends along the length direction of the connecting section 131, the connecting section 131 is used for connecting the door leg 11 and the upper longitudinal beam 12, the extending section 132 is used for installing the revolving suspension device 40, and the projection of the revolving suspension device 40 in the vertical direction is not overlapped with the projection of the upper longitudinal beam 12 and the lifting mechanism 30 in the vertical direction. Because the projection of the rotary hoisting device 40 in the vertical direction is not overlapped with the upper longitudinal beam 12 and the hoisting mechanism 30, the rotary hoisting device 40 can not be interfered when in work, and the space of the extension section 132 can be effectively utilized, so that in the limited space of the ship lock, the function is realized, and the trouble caused by insufficient space is avoided.

It should be noted that the automatic beam-grasping apparatus 120 shown in fig. 4 is detachably connected to the hoisting mechanism 30, and the hoisting mechanism 30 can fix and move the service gate in cooperation with the automatic beam-grasping apparatus 120. When the transportation of the inspection gate is performed, the swing lifting device 40 does not operate, so that the swing lifting device 40 and the automatic beam grabbing device 120 do not conflict in actual operation. When the rotary lifting device 40 needs to be used, the automatic beam grabbing device 120 can be detached or lowered to the lowest position, so that interference between the automatic beam grabbing device and the rotary lifting device 40 is avoided.

With reference to fig. 5, in this embodiment, the arm support is an L-shaped arm support, the L-shaped arm support includes a first arm 421 and a second arm 422, the swing device 40 further includes a reinforcing arm 46, two ends of the reinforcing arm 46 are respectively connected to the first arm 421 and the second arm 422, and the reinforcing arm, the first arm 421 and the second arm 422 form a triangular structure. The L-shaped arm support is matched with the reinforcing arm 46, so that the whole structure stability is better, the operation of the hoisting mechanism 45 is more stable, and the overturning of the whole rotary hoisting device 40 is avoided.

The swing mechanism 45 of the present embodiment is movably disposed on the first arm 421, and the first arm 421 extends in the horizontal direction. The first arm 421 provides a guide and a moving base for the translation of the trolley mechanism 45. Further, the rotating suspension device 40 further includes a first limiting member 471 and a second limiting member 472, and the first limiting member 471 and the second limiting member 472 are respectively disposed at two ends of the first arm 421 to limit the moving range of the suspension mechanism 45.

In addition, in order to ensure that the rotation range is controllable, the revolving suspension device 40 further includes a third limiting member 481 and a triggering member 482, the third limiting member 481 is disposed on the fixed support 41, the triggering member 482 is disposed on the arm support, and the triggering member 482 and the third limiting member 481 are used for limiting the range of the working rotation angle of the arm support. The third limiting member 481 is matched with the trigger 482, so that the range of the working rotation angle of the slewing crane device 40 is within a preset range, and interference with other mechanisms is avoided. In the embodiment, the range of the working rotation angle is H, and H is more than or equal to 0 degrees and less than or equal to 225 degrees. Through the scope of design work rotation angle, can make full use of space, further promote the convenient degree of material handling.

Referring to fig. 2 and 3, in the present embodiment, the hoisting mechanism 30 includes a first hoisting unit 31 and a second hoisting unit 32, and the first hoisting unit 31 and the second hoisting unit 32 are respectively fixed to the upper longitudinal beam 12 and operate independently. First lifting unit 31 and second play to rise unit 32 and can rise the gate as required, the common handling maintenance gate to can adjust the height of output and handling respectively, in order to adapt to the handling demand, guarantee to overhaul the smooth handling of gate, also can consider according to actual need simultaneously, the suitable material of handling elevation further promotes the rate of utilization, improves maintenance efficiency. In this embodiment, both the first lifting unit 31 and the second lifting unit 32 are provided with the movable pulley block device 33 to lift the automatic grab beam device 120 with more effort, thereby enabling the service gate to be lifted. The structure and the working process of the first lifting unit 31 and the second lifting unit 32 can also refer to the structure and the function of hoisting equipment used by a general gantry crane.

The principle of the embodiment is as follows:

in the existing ship lock, the metal structures and the hoist parts used for overhauling the existing ship lock, more specifically, the working gates, valves, hydraulic parts, floating mooring columns and the like on two sides of the ship lock are difficult to transport from the land side to the river side, and the parts can only be hoisted and transported independently by an automobile type or a floating type mobile crane, so that the operation process is complex and consumes a long time.

The elevation of the position of the access door slot 300 of the ship lock is different from the elevation of the working gate, the valve and the like, so that the original hoisting equipment does not have the function of hoisting and transporting the working gate, the valve, the hydraulic hoist, the floating mooring pillar and other parts at the river side to the river side from the land side and carrying out on-site maintenance, and the safe operation period of the ship lock cannot be ensured.

Through to prior art research still discover, current ship lock engineering's maintenance gate design is in the lock bow 500 outside, and hydraulic pressure is opened and close the computer lab and is arranged on ship lock bow 500, and the rail direction of portal crane is the perpendicular to lock bow 500 and arranges, and when whole portal crane moved on the track and was close to the computer lab of opening and close, it was very close with the distance of opening and close the computer lab, consequently, the width design of whole portal crane received very big restriction, can't have great space to improve the design like general hydraulic engineering generally. In addition, because the track of the existing gantry is perpendicular to the water flow direction, the available space is narrower, and the gantry is not like a large space available along the water flow direction. Meanwhile, a structure or a mechanism with huge weight can not be designed for transferring materials, otherwise, the hydraulic structure attached to the ship lock engineering needs to be further improved, and the structure instability can be avoided. The cost investment is increased by the transformation and lifting, a large amount of construction time is consumed, and the transformation and lifting are very unfavorable for actual waterway transportation.

In order not to influence the normal work of ship lock, avoid producing great transformation input again to promote maintenance efficiency, can't change its size at whole current portal crane, under the very limited condition of installation space, this application has proposed a ship lock overhauls portal crane 1000.

Specifically, the used structure of portal of this application can refer to the structure of the body frame body of current portal machine, and this also means, can be under the condition of the body frame body of not changing current portal machine, uses the scheme of this application, forms a new ship lock and overhauls portal machine 1000, has saved the cost on the one hand, and on the other hand has also avoided great transformation and has influenced the holistic safe operation cycle of ship lock.

Further, please combine fig. 3 and fig. 4, the hoisting mechanism 30 of the present application can cooperate with the automatic beam grabbing device 120 to perform normal hoisting on the maintenance gate, and at this time, the electric block of the rotary hoisting device 40 keeps a retraction state, so as to avoid influencing the movement of the maintenance gate. For example, the boom can be rotated to the position shown in fig. 3, so that the maintenance gate is avoided, and the hoist room at the gate head 500 can be avoided, thereby preventing interference with the hoist. Please refer to fig. 4, the rotation range of the arm support is a range H in the figure, the whole swing crane device 40 fully utilizes the space of the upper beam 13, is installed in the extension section 132, and the rotation range is controlled at 225 °, and can move in the vertical space and the horizontal space, and the moving space is fully utilized, so that the components such as a working gate, a valve, a hydraulic hoist and the like can be lifted and transported in the range to the maximum extent, the work of an automobile type or a floating type flow crane is directly replaced, the control mode of controlling the electric hoist to lift and move transversely along the first arm 421 is simple, the operation difficulty is greatly reduced, a lot of time is saved, and the efficiency is greatly improved for the ship lock maintenance work.

The swing device 40 is disposed on the extension section 132, the structural strength of the door leg 11 is fully utilized, and the acting force can be transmitted to the connection section 131 and directly transmitted to the door leg 11, so that the overall structural strength is guaranteed. In addition, compared with hoisting equipment such as an automobile type hoisting device or a floating type mobile hoisting device, the weight of the rotary hoisting device 40 is light, the weight of hoisted materials can be borne under the condition that the structure of the rotary hoisting device 40 is guaranteed, the structural stability of the whole ship lock maintenance portal crane 1000 cannot be influenced, and due to the fact that the weight of the whole portal frame is small, the hydraulic structure does not need to be transformed, the cost and the time are saved, and normal water transportation work is not influenced.

In actual work, the maintenance gate needs to be lifted, the first lifting unit 31 and the second lifting unit 32 of the lifting mechanism 30 are matched with the automatic beam grabbing device 120 to carry out lifting, and at the moment, the rotary lifting device 40 does not work. After the access door is grabbed, the traveling mechanism 20 drives the entire door frame and the lifted access door to move from the door storage 200 to the access door slot 300. When other materials except for the maintenance gate need to be lifted, such as a working gate, a valve, a hoist and the like, the parts can be loaded on the hook 451 of the electric hoist on the river side, then the running mechanism 20 drives the gantry to move, the parts on the land side can be moved to the gate head 500 on the river side, and the corresponding parts can be maintained and replaced conveniently. Effectively solved the metallic structure and the hoist spare part handling of river side, overhauld the problem of difficulty, still make full use of the structure of current door machine simultaneously, promoted the frequency of utilization of current door machine, because originally can only be used for the handling to overhaul the gate, it is abundant inadequately to the utilization of equipment.

To sum up, the ship lock maintenance door machine 1000 of this application drives the door frame through running gear 20 and at the direction sideslip of perpendicular to rivers, can save the handling time of spare part, and hoisting mechanism 30 can the handling maintenance gate, parts such as rotary hoisting device 40 can handling work gate, rotary hoisting device 40 make full use of entablature 13 structure, the handling ability has both been increased, avoid influencing the structure again, still make full use of limited space, the maintenance efficiency of ship lock has greatly been promoted, the operation safety of ship lock gate and headstock gear has been ensured.

The above description is only a preferred embodiment of the present application and is not intended to limit the present application, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims (10)

1. The utility model provides a ship lock access door machine for deliver the material on the ship lock, the ship lock includes storage door storehouse and access door groove that perpendicular to water flow direction laid, its characterized in that, ship lock access door machine includes:

the door frame comprises door legs, an upper longitudinal beam and an upper cross beam, and the upper longitudinal beam and the upper cross beam are connected to the top ends of the door legs;

the travelling mechanism is arranged on the door legs and can drive the door frame to transversely move between the door storage and the access door slot along the direction perpendicular to the water flow;

the lifting mechanism is used for lifting the maintenance gate and is arranged on the upper longitudinal beam;

and the rotary lifting device is arranged on the upper cross beam and is used for lifting materials.

2. The ship lock maintenance portal crane according to claim 1, wherein the rotary hoisting device comprises a fixed support, an arm support, a rotary power mechanism, a rotary support and a hoisting mechanism, the fixed support is connected to the upper cross beam, the rotary support is arranged on the fixed support, the rotary power mechanism is in transmission connection with the arm support through the rotary support so as to drive the arm support to rotate, and the hoisting mechanism is movably connected to the arm support.

3. The ship lock maintenance door machine as claimed in claim 2, wherein the upper beam comprises a connecting section and an extension section, the extension section is connected with the connecting section and extends along the length direction of the connecting section, the connecting section is used for connecting the door leg and the upper longitudinal beam, the extension section is used for installing the rotary lifting device, and the projection of the rotary lifting device in the vertical direction is not overlapped with the projection of the upper longitudinal beam and the projection of the lifting mechanism in the vertical direction.

4. The ship lock access door machine of claim 2, wherein the arm support is an L-shaped arm support, the L-shaped arm support comprises a first arm and a second arm, the slewing crane device further comprises a reinforcing arm, and two ends of the reinforcing arm are respectively connected to the first arm and the second arm and form a triangular structure with the first arm and the second arm.

5. The ship lock service door machine of claim 4, wherein the swing mechanism is movably disposed at the first arm, the first arm extending in a horizontal direction.

6. The ship lock access door machine of claim 5, wherein the rotary lifting device further comprises a first limiting member and a second limiting member, and the first limiting member and the second limiting member are respectively disposed at two ends of the first arm to limit the moving range of the lifting mechanism.

7. The ship lock access door machine of claim 2, wherein the slewing crane device further comprises a third limiting member and a trigger member, the third limiting member is disposed on the fixed support, the trigger member is disposed on the arm support, and the trigger member and the third limiting member are used for limiting the range of the operating rotation angle of the arm support.

8. The ship lock access door machine of claim 7, wherein the range of the operating rotation angle is H, satisfying 0 ° ≦ H ≦ 225 °.

9. The ship lock access door machine of claim 1, wherein the hoisting mechanism comprises a first hoisting unit and a second hoisting unit, and the first hoisting unit and the second hoisting unit are respectively fixed to the upper longitudinal beam and respectively and independently work.

10. The ship lock access door machine of claim 1, wherein the ship lock access door machine comprises a controller, and the controller can remotely control the running mechanism, the lifting mechanism and the rotary lifting device to work.

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