CN112144497B - Ship lift lock head working door maintenance platform and building method thereof - Google Patents
Ship lift lock head working door maintenance platform and building method thereof Download PDFInfo
- Publication number
- CN112144497B CN112144497B CN202010974377.2A CN202010974377A CN112144497B CN 112144497 B CN112144497 B CN 112144497B CN 202010974377 A CN202010974377 A CN 202010974377A CN 112144497 B CN112144497 B CN 112144497B
- Authority
- CN
- China
- Prior art keywords
- platform
- locking
- working door
- maintenance
- head working
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Classifications
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02C—SHIP-LIFTING DEVICES OR MECHANISMS
- E02C5/00—Mechanisms for lifting ships vertically
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66F—HOISTING, LIFTING, HAULING OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD
- B66F11/00—Lifting devices specially adapted for particular uses not otherwise provided for
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04H—BUILDINGS OR LIKE STRUCTURES FOR PARTICULAR PURPOSES; SWIMMING OR SPLASH BATHS OR POOLS; MASTS; FENCING; TENTS OR CANOPIES, IN GENERAL
- E04H5/00—Buildings or groups of buildings for industrial or agricultural purposes
- E04H5/02—Buildings or groups of buildings for industrial purposes, e.g. for power-plants or factories
- E04H5/06—Pits or building structures for inspection or services
Landscapes
- Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Architecture (AREA)
- Mechanical Engineering (AREA)
- Civil Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Ocean & Marine Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Types And Forms Of Lifts (AREA)
Abstract
A ship lift lock head working door maintenance platform and a building method thereof are disclosed, wherein a bottom maintenance platform is driven to lift by a winch hoist, the winch hoist is installed on a bent frame column, the bottom maintenance platform comprises a bottom walkway beam, an operation platform is laid at the upper end of the bottom walkway beam, guide wheels are installed on the left and right sides of the bottom walkway beam, a plurality of combined oil cylinders are installed at the bottom end of the bottom walkway beam, and the combined oil cylinders are inserted into positioning columns on the lock head working door to complete locking; the side is overhauld the platform and is installed on the maintenance position platform of the first work door left and right sides of floodgate, and the side is overhauld the platform and is included fixed platform and movable platform, and the movable platform all is equipped with the four corners flange board from top to bottom, all through the mutual detachable connection of four corners flange board between movable platform and the movable platform. The maintenance platform for the working door of the ship lift at the head can greatly reduce the workload of construction and protect the structure of the working door of the ship lift at the head from being damaged.
Description
Technical Field
The invention relates to construction equipment and a construction method of a navigation building, in particular to a maintenance platform of a sunken flat working door at the head of a ship lift lock with large span and high altitude overhanging edges and a building method thereof.
Background
When the ship lift lock head working door is overhauled, the overhaul platform needs to be set up due to the limitation of construction conditions and the limitation of construction environment, so that the maintenance operation of the lock head working door is carried out. At present, the method of erecting a full hall scaffold on the whole maintenance working face of the lock head working door of the ship lift by scaffold steel pipes is generally adopted to carry out the maintenance operation of the lock head working door.
The method for overhauling has the following defects: (1) the scaffold needs to consume a large amount of manpower and material resources, and the construction amount is further increased along with the increase of the width of a channel and the size of a working door at a gate head, so that the construction cost is increased; (2) due to the fact that the steel beam needs to be implanted into the longitudinal beam web plate of the working door to fix the scaffold, after construction is completed, the steel beam is removed by a cutting gun, certain damage can be caused to the quality of the gate head working door structure, and the service life of the subsequent gate head working door is influenced; (3) the erected scaffold is adopted for construction, and due to the quality problem of erection, certain potential safety hazards can be generated for subsequent construction; (4) scaffold frame is built consuming time and is removed inconveniently in the work progress, and then influences the construction progress.
Therefore, a new gate head working door maintenance platform needs to be developed and designed based on the analysis, so that maintenance construction is facilitated.
Disclosure of Invention
The invention aims to solve the technical problem of providing a ship lift lock head working door maintenance platform and a building method thereof.
In order to solve the technical problems, the technical scheme adopted by the invention is as follows:
a maintenance platform for a working door of a ship lift lock head comprises a bottom maintenance platform and a side maintenance platform;
the bottom maintenance platform is driven to lift through hoisting hoists on two sides, the hoisting hoists are mounted on bent frame columns, and the bent frame columns are arranged on lock walls on two sides of a ship lift channel;
the bottom maintenance platform comprises a bottom walkway beam, an operation platform is laid on the bottom walkway beam, guide wheels are arranged on the left and right sides of the bottom walkway beam and are matched with guide rails on the gate wall and the gate head working door; the bottom end of the bottom walkway beam is provided with a plurality of combined oil cylinders, and the combined oil cylinders are inserted into positioning columns on the gate head working door to complete locking;
the side is overhauld the platform and is installed on the maintenance position platform of the first work door left and right sides of floodgate, and the side is overhauld the platform and is included fixed platform and a plurality of movable platform, and wherein, the movable platform all is equipped with the four corners flange board from top to bottom, between movable platform and the movable platform, all can dismantle the connection each other through the four corners flange board between movable platform and the fixed platform.
The guide wheels comprise side guide wheels, positive guide wheels and reverse guide wheels, wherein the side guide wheels are matched with the reverse guide wheels and guide rails on the gate wall, and the positive guide wheels are matched with a panel of the gate head working door or a rear flange of the main longitudinal beam.
The positioning column is an L-shaped beam, the L-shaped beam is welded on a longitudinal beam web plate of the brake head working door, and the front end of the L-shaped beam is a box-shaped beam with a horn mouth.
And a second locking hole is formed in the web plate at the tail part of the box-type beam, a first locking hole is formed in the corresponding combined oil cylinder, and after the combined oil cylinder is inserted into the L-shaped beam, the locking pin is inserted into the second locking hole and locked with the first locking hole.
The hoisting hoist comprises a driving motor, an output shaft of the driving motor is connected with an input shaft of the speed reducer through a coupling, an output shaft of the speed reducer is connected with the winding drum, and the winding drum is wound with a steel wire rope and fixed after passing through a pulley; and a digital display stroke detection device is arranged on the hoisting hoist.
Install locking device about the bottom walking beam, locking device includes drive cylinder, locking roof beam and locking groove, and wherein, the curb plate end to end hinge of drive cylinder, locking roof beam and bottom walking beam, the locking groove sets up on the bent frame post, when drive cylinder stretches out, locking roof beam and locking groove joint.
A construction method for building an overhaul platform of a working door at the head of a ship lift comprises the following steps:
step 1): the lock head access door of the ship lift is dropped to retain water, water between the access door and the lock head working door is drained, and the lock head working door is lifted to an access position and locked;
step 2): an operator A reaches an operation platform at the top of the bent frame column through a step ladder arranged on the bent frame column, and an operator B reaches the installation position of the L-shaped beam through an inner channel of the brake head working door;
step 3): an operator A operates 2 winch hoists to pre-lift the bottom overhaul platform for 5cm, then operates 2 driving oil cylinders of the locking devices, the driving oil cylinders drive the locking beams to return, and the bottom overhaul platform is unlocked;
step 4): operating 2 winch hoists to drive the bottom maintenance platform to fall at a certain speed, enabling the side guide wheels and the reverse guide wheels to move downwards along guide rails arranged on the gate wall, enabling the guide rails of the front guide wheels to be gate head working door panels or gate head working door main longitudinal beams rear flanges, enabling the winch hoists to descend to a set height to stop running, and enabling the brake to be braked;
step 5): an operator A operates the combined oil cylinders to extend out one by one and inserts the combined oil cylinders into box-shaped beams of the corresponding L-shaped beams respectively, an operator B inserts locking pins into first locking holes of the corresponding combined oil cylinders and second locking holes of the corresponding L-shaped beams respectively for locking, and the construction of the bottom maintenance platform is completed;
step 6): hoisting the movable platform to the top of the fixed platform by using a crane, adjusting the positions of four foundation flanges of the movable platform to align the four foundation flanges of the movable platform with the four flanges at the top of the fixed platform, and fastening and connecting the four foundation flanges of the movable platform with bolts, so that the 1 st section of the movable platform is erected;
step 7): the movable platforms are sequentially erected from bottom to top by adopting the method in the step 6) until the whole side maintenance platform is completely erected;
step 8): after the bottom overhaul platform and the side overhaul platform are built, respectively arranging safety nets at the suspension edge sides;
step 9): after the overhaul of the working door of the brake head is finished, the safety net is removed, the movable platform at the uppermost end is hung by a crane, the connecting bolt between the movable platform at the uppermost end and the adjacent movable platform below the uppermost end is removed, and the removal of the nth section of movable platform is finished;
step 10): the movable platform is sequentially dismantled from top to bottom by adopting the method in the step 9) until the whole movable platform is dismantled;
step 11): an operator B moves out of the combined oil cylinder and the locking pin of the L-shaped beam, the operator A operates the combined oil cylinder to retract in place, and then operates the winch hoist to drive the bottom maintenance platform to lift until the bottom of the locking beam of the locking device is 5cm higher than the locking groove;
step 12): and operating a driving oil cylinder of the locking device to drive the locking beam to be pushed out, operating the winch hoist to drive the bottom maintenance platform to fall, contacting the bottom of the locking beam of the locking device with the locking groove, locking the bottom maintenance platform, switching off the upper brake of the winch hoist, and completing maintenance of the working door at the brake head.
The fixed platform of side maintenance platform has arranged personnel's passageway, and maintainer accessible side maintenance platform reaches end maintenance platform.
In the step 4), the falling height of the winch hoist can be controlled according to the overhaul of different parts of the brake head working door, so that the overhaul of all parts of the brake head working door can be realized.
The invention relates to a ship lift lock head working door maintenance platform and a construction method thereof, which have the following technical effects:
1) the platform is changed into a split type bottom maintenance platform and a side maintenance platform by adopting an integral scaffold structure, the platform is independently assembled, the middle bottom maintenance platform is convenient to adopt a lower-power winch hoist to meet the requirements of lifting and dropping the maintenance platform, the maintenance platforms on two sides are detachably mounted by adopting a plurality of sections of movable platforms, and thus the lifting difficulty and the assembly difficulty can be reduced to a great extent by matching with the elevation lifted by a brake head working door.
2) The left side and the right side of the maintenance platform are respectively provided with the winch hoist through the adoption, the balance of the maintenance platform in the operation process on the brake head working door is ensured, the two winch motors are simultaneously used for driving, the moving safety and reliability are ensured, and the potential overturning danger of the maintenance platform is effectively prevented.
3) The utility model discloses a maintenance platform, including the platform, the platform left and right sides is overhauld at the end, through overhaul the preceding of platform left and right sides at the end, back and side set up the forward guide pulley, reverse guide pulley and side direction guide pulley, can make to overhaul the platform when the operation, the guide effect through the leading wheel makes end maintenance platform relatively fixed on the panel or the main longitudinal beam of floodgate head working door, play the effect of fixed maintenance platform, the security of construction has been improved, can play the effect of direction through the side guide wheel, make to overhaul the platform and contact with the lateral wall at the removal in-process, the smooth and easy of maintenance platform at the removal in-process has been guaranteed.
4) The stroke detection device with the digital display is arranged on two sides of the bottom overhauling platform and is respectively connected with the two hoisting motors, so that the inclination phenomenon and the stress imbalance phenomenon of the overhauling platform can be timely detected, and the corresponding hoisting motors can be timely stopped to brake when the imbalance is detected, so that the construction safety is improved.
5) The maintenance platform can be conveniently disassembled, assembled and reused in the maintenance process of the plurality of ship lift lock head working doors, the labor amount of the platform is saved, the labor intensity is reduced, and the construction period is shortened.
6) The structure that does not need to break and trade original first work door of floodgate is set up to this maintenance platform, and fixed welding is good in advance, has guaranteed the integrality of original first work door of floodgate structure, has improved construction quality.
7) This maintenance platform removes convenient and reliable, and the whole maintenance process of completion large-span, the first working door of jumbo size floodgate that can be smooth has avoided traditional sectional type to set up the defect of scaffold frame, further improvement efficiency of construction and construction security, and its easy operation can also realize artifical automatic control moreover. This maintenance platform removes convenient reliably, and the whole maintenance process of completion large-span, the first working door of jumbo size floodgate that can be smooth has avoided traditional sectional type to set up the defect of scaffold frame, further improvement efficiency of construction and construction security, and its easy operation can also realize artifical automatic control moreover.
Drawings
The invention is further illustrated by the following examples in conjunction with the accompanying drawings:
fig. 1 is a schematic view of the overall arrangement of the present invention.
Fig. 2 is a schematic view of the present invention with the bottom service platform above.
Fig. 3 is a schematic view of the present invention with the bottom service platform positioned below.
Fig. 4 is a schematic structural view of a bottom service platform in the invention.
Fig. 5 is a schematic view of the structure of the locking device of fig. 4.
Fig. 6 is a schematic structural diagram of the combination cylinder in fig. 3.
FIG. 7 is a schematic structural view of a side service platform according to the present invention
Fig. 8 is a schematic structural view of the hoist of the present invention.
FIG. 9 is a schematic structural view of the butt joint of the combination cylinder and the L-shaped beam in the structure of the invention.
In the figure: the device comprises a bottom overhaul platform 1, a bottom walkway beam 2, a combined oil cylinder 3, an L-shaped beam 4, a bent frame column 5, a winch hoist 6, a locking device 7, a power source hydraulic system 8, a side overhaul platform 9, a fixed platform 10, a movable platform 11, a gate wall 12, a gate head working door 13, a pulley 201, a side guide wheel 202, a forward guide wheel 203, a reverse guide wheel 204, a steel grating 205, a guardrail 206, a skirting board 207, a first travel switch 301, a first locking hole 302, a driving motor 601, a coupling 602, a speed reducer 603, a winding drum 604, a steel wire rope 605, a digital display travel detection device 606, a driving oil cylinder 701, a locking beam 702 and a locking groove 703.
Detailed Description
As shown in fig. 1 to 9, the maintenance platform for the lock head working door of the ship lift comprises 2 bent frame columns 5, wherein the 2 bent frame columns 5 are symmetrically arranged on the lock walls 12 at two sides of a ship channel of the ship lift, and each bent frame column 5 is fixedly provided with a winch hoist 6 through a screw. The lower end of the winch hoist 6 is connected with the bottom overhaul platform 1, and the bottom overhaul platform 1 is driven to lift by the winch hoist 6.
The bottom maintenance platform 1 comprises a bottom walkway beam 2, a steel grating 205 is laid on the bottom walkway beam 2 to serve as a maintenance plane, and a guardrail 206 and a skirting board 207 are arranged on one side of the bottom walkway beam 2 to guarantee safety. The movable pulleys 201 installed on the left and right sides of the upper end of the bottom walkway beam 2 are used for connecting with the hoist 6.
Further, side guide wheels 202, a forward guide wheel 203, and a backward guide wheel 204 are mounted on the bottom walkway girder 2 on both the left and right. The guide wheels are used for guiding.
In addition, 6 combined oil cylinders 3 are fixedly arranged at the bottom of the bottom walkway beam 2 at equal intervals, and a first locking hole 302 is arranged at the extending end of each combined oil cylinder 3. The equal interval welding of the first working door 13 of floodgate that corresponds has 6L type roof beams 4, and every L type roof beam 4 front end is the box girder of horn mouth, and the horn mouth can play the guiding orientation effect, makes things convenient for 3 location of combination hydro-cylinder and inserts L type roof beam 4 fast.
A second locking hole 401 is formed in a web plate at the tail of the L-shaped beam 4, and the second locking hole 401 can be opposite to the first locking hole 302 at the end of the combined oil cylinder 3 after the combined oil cylinder 3 is inserted, so that a locking pin can be conveniently inserted for fixing.
In order to ensure the stroke precision of the combined oil cylinders 3, a first stroke switch 301 is installed on each combined oil cylinder 3, the first stroke switch 301 is connected with a power source hydraulic system 8 through a cable, when the combined oil cylinder extends for 1000mm and reaches a set stroke, the power source hydraulic system 8 is automatically stopped, the operation stroke deviation of the combined oil cylinder 3 is prevented from being overlarge, and the first locking hole 302 at the end part of the combined oil cylinder 3 is ensured to be accurately aligned with the second locking hole 401 of the L-shaped beam 4.
In addition, locking devices 7 are installed on the left and right sides of the bottom walkway girder 2. Each of the 2 locking devices 7 includes a driving cylinder 701, a locking beam 702, and a locking groove 703. One end of the driving oil cylinder 701 is hinged with the bottom walkway beam 2, the other end of the driving oil cylinder is hinged with the lower end of the locking beam 702, and the upper end of the locking beam 702 is hinged with the outer side of the bottom walkway beam 2. The corresponding bent frame column 5 is provided with a locking groove 703. When the driving oil cylinder 701 extends out, the locking beam 702 can be driven to rotate outwards and expand, and then the locking beam 702 is positioned in the locking groove 703 and is clamped with the locking groove 703 to complete locking.
The driving oil cylinder 701 is provided with a second travel switch 704; the second travel switch 704 is connected to the power source hydraulic system 8 through a cable, and when the driving cylinder 701 extends or retracts to a set travel, the power source hydraulic system 8 is automatically stopped.
In the device, the hoisting hoist 6 comprises a driving motor 601, the driving motor 601 has a braking function, an output shaft of the driving motor 601 is connected with an input shaft of a speed reducer 603 through a coupler 602, an output shaft of the speed reducer 603 is connected with a winding drum 604, a steel wire rope 605 is wound on the winding drum 604, and the steel wire rope 605 is wound on the pulley 201 and fixed.
The digital display stroke detection device 606 is installed on the winch hoist 6, and the bottom overhaul platform 1 can be lifted and dropped to any height according to the overhaul requirement.
Besides the liftable bottom maintenance platform 1, the invention is also provided with a side maintenance platform 9, and the side maintenance platform 9 can be used for maintaining the side water stop, the fixed wheels, the side wheels and the like of the brake head working door.
The side service platform 9 comprises a fixed platform 10 and a movable platform 11. The fixed platform 10 is welded and fixed on an embedded part of an overhaul position platform of the brake head working door 13 in advance; the four corners flange board in 11 bottoms of movable platform passes through bolt fastening connection with fixed platform 10 tops four corners flange board, and fixed platform 10 is the same with 11 structural style of movable platform.
Example 1:
the lower lock head working door 13 of the three gorges ship lift is of a multi-girder, double-hanging-point and double-panel structure. The manger plate panel and stagnant water are located the upstream face, and stainless steel stagnant water board and the side guide pulley of butt joint with ship lift ship reception chamber seal frame are arranged to the low reaches, and 13 overall dimension of lower lock head working door are: 28.84m 19.75m 4.72m (width x height x door thickness).
According to the attached drawings, the construction method for building the maintenance platform by adopting the working door at the head of the ship lift comprises the following steps:
step 1): the lower lock head access door of the three gorges ship lift is dropped to stop water, water between the lower lock head access door and the lower lock head working door is drained, and the lower lock head working door is lifted to a 76 m-elevation access position and locked;
step 2): an operator A reaches an operating platform at the top of the bent frame column 5 through a step ladder arranged on the bent frame column 5, and an operator B reaches the mounting position of the L-shaped beam 4 through an inner channel of the lower gate head working door;
step 3): an operator A operates 2 winch hoists 6 to pre-lift the bottom overhaul platform 1 for 5cm, then operates the driving oil cylinders 701 of the two locking devices 7 to drive the locking beams 702 to return, and the bottom overhaul platform 1 is unlocked;
step 4): operating 2 hoisting hoists 6 to drive the bottom overhaul platform 1 to fall at a certain speed, enabling the side guide wheels 202 and the reverse guide wheels 204 to move downwards along guide rails arranged on the gate wall 12, enabling the front guide wheels 203 to move downwards along the back flange of a main longitudinal beam of a lower gate head working door panel or a lower gate head working door, enabling the hoisting hoists 6 to descend to a set height to stop running, and enabling a brake to be braked;
step 5): an operator A operates the 6 combined oil cylinders 3 to extend out one by one and inserts the 6 combined oil cylinders into box-type beams of the L-shaped beams 4 respectively, an operator B inserts the locking pins into second locking holes 401 of the 6 combined oil cylinders 3 and the 6L-shaped beams 4 respectively for locking, and the construction of the bottom overhaul platform 1 is completed;
step 6): hoisting a first section of movable platform 11 to the top of a fixed platform by using a crane, adjusting the positions of four foundation flanges of the movable platform 11 to enable the four foundation flanges of the movable platform 11 to be aligned with the four flanges of the top of the fixed platform 10, fastening and connecting by using bolts, and finishing the erection of a section 1 of movable platform 11;
step 7): repeating the step 6), aligning the four foundation flanges of the second section of movable platform 11 with the four flanges at the top of the first section of movable platform 11, and completing the construction of the side maintenance platform 9;
step 8): after the bottom overhaul platform 1 and the side overhaul platform 9 are built, respectively arranging safety nets at the suspension edge sides;
step 9): after the lower gate head working door is overhauled (in the embodiment, the water stop of the gate head working door is overhauled and replaced, the bottom overhaul platform does not need to move, and if the gate head working door is subjected to antiseptic treatment or other overhaul projects, the platform needs to be moved), the safety net is removed, the second section of movable platform 11 is hung by a crane, the connecting bolts between the movable platform 11 and the fixed platform 10 are removed, and the second section of movable platform 11 is removed;
step 10): repeating the step 9), and dismantling the first section of the movable platform 11;
step 11): the operator B moves out of the locking pins of the combined oil cylinder 3 and the L-shaped beam 4, the operator A operates the combined oil cylinder 3 to retract in place, and then operates the winch hoist 6 to drive the bottom maintenance platform 1 to lift until the bottom of the locking beam 702 of the locking device 7 is higher than a locking groove 7035 cm;
step 12): the driving oil cylinder 701 of the locking device 7 is operated to drive the locking beam 702 to be pushed out, then the winch hoist 6 is operated to drive the bottom maintenance platform 1 to fall for 5cm, so that the bottom of the locking beam 702 of the locking device 7 is contacted with the locking groove 703, the bottom maintenance platform 1 is locked, the upper brake of the winch hoist 6 is powered off, and the lower brake head working door is maintained.
Preferably, personnel's passageway has been arranged to side maintenance platform 9's fixed platform 10, and maintainer accessible side maintenance platform 9 reachs end maintenance platform 1, avoids the staff to take the manned hanging flower basket and reachs end maintenance platform, ensures construction safety.
Preferably, in the step 4), the falling height of the hoisting hoist 6 can be controlled according to the overhaul of different parts of the lower brake head working door, so that the overhaul of all parts of the lower brake head working door can be realized.
Preferably, the side maintenance platform 9 is a combination of a fixed platform 10 with a height of 11m and 2 sections of movable platforms 11 with a height of 4.5m according to the arrangement position and the type of the lower lock head working door of the three gorge ship lift.
Example 2:
the upper lock head working door of the three gorges ship lift is of a structure with multiple main beams, double lifting points and double panels. The water retaining panel and the stagnant water are located the upstream face, and the low reaches are arranged and are received the stainless steel sealing plate and the side guide pulley of the sealed frame butt joint of ship compartment with the ship lift, and the outer shape size of the first working gate of upper lock is: 27.6m × 17m × 5.67m (width × height × door thickness).
The construction method for building the maintenance platform by adopting the upper lock head working door of the ship lift is described in detail as follows, which comprises the following steps:
step 1): and (3) placing the upper lock head inspection and repair door of the three gorges ship lift to block water, draining water between the upper lock head inspection door and the upper lock head working door, lifting the upper lock head working door to an 186 m-height door garage, and grabbing a beam by using a bridge hoist to fix the door body, so that the door body is prevented from overturning under the action of environmental load. (ii) a
Step 2): an operator A reaches an operation platform at the top of the bent frame column through a step ladder arranged on the bent frame column 5, and an operator B reaches the installation position of the L-shaped beam 4 through an inner channel of the upper gate head working door;
step 3): an operator A operates 2 winch hoists 6 to pre-lift the bottom overhaul platform 1 for 5cm, then operates a driving oil cylinder 701 of a locking device 7 to drive the locking beam 702 to return, and the bottom overhaul platform 1 is unlocked;
step 4): operating 2 hoisting hoists 6 to drive the bottom overhaul platform 1 to fall at a certain speed, moving the side guide wheels 202 and the reverse guide wheels 204 downwards along guide rails arranged on a gate wall, wherein the guide rails of the front guide wheels 203 are front gate head working door panels or rear flange edges of main longitudinal beams of the front gate working doors, and the hoisting hoists 6 descend to a set height to stop running and brake the upper gates of the brakes;
step 5): an operator A operates the 6 combined oil cylinders 3 to extend out one by one and inserts the 6 box-shaped beams of the L-shaped beams 4 into the oil cylinders respectively, an operator B inserts the locking pins into the 6 combined oil cylinders 3 and the second locking holes 401 of the 6L-shaped beams 4 respectively for locking, and the construction of the bottom overhaul platform 1 is completed;
step 6): hoisting a first section of movable platform 11 onto four flanges of an embedded part of an upper gate head working door inspection position platform by using a crane, adjusting the positions of the four foundation flanges of the first section of movable platform 11 to align the four foundation flanges of the movable platform 11 with the four flanges of the embedded part, and fastening and connecting the four foundation flanges of the movable platform 11 with bolts to finish the erection of the first section of movable platform 11;
step 7): repeating the step 6), connecting other three sections of movable platforms 11 according to the method in the step 6), and completing the construction of the side overhaul platform 9;
step 8): after the bottom overhaul platform 1 and the side overhaul platform 9 are built, respectively arranging safety nets at the suspension edge sides;
step 9): after the upper gate head working door is overhauled, the safety net is removed, the fourth section of movable platform 11 is hung by a crane, connecting bolts of four foundation flanges of the fourth section of movable platform 11 and four top flanges of the third section of movable platform 11 are removed, and the fourth section of movable platform 11 is removed;
step 10): repeating the step 9), and dismantling other three sections of movable platforms 11 according to the step 9);
step 11): the operator B moves out of the locking pins of the combined oil cylinder 3 and the L-shaped beam 4, the operator A operates the combined oil cylinder 3 to retract in place, and then operates the winch hoist 6 to drive the bottom maintenance platform 1 to lift until the bottom of the locking beam 702 of the locking device 7 is higher than a locking groove 7035 cm;
step 12): the driving oil cylinder 701 of the locking device 7 is operated to drive the locking beam 702 to be pushed out, then the winch hoist 6 is operated to drive the bottom maintenance platform 1 to fall, so that the bottom of the locking beam 702 of the locking device 7 is contacted with the locking groove 703, the bottom maintenance platform (1) is locked, the upper brake of the winch hoist 6 is powered off, and the maintenance of the first working door of the upper brake is completed.
Preferably, personnel's passageway has been arranged to side maintenance platform 9's fixed platform 10, and maintainer accessible side maintenance platform 9 reachs end maintenance platform 1, avoids the staff to take the manned hanging flower basket and reachs end maintenance platform, ensures construction safety.
Preferably, in the step 4), the falling height of the hoisting hoist 6 can be controlled according to the overhaul of different parts of the upper brake head working door, so that the overhaul of all parts of the upper brake head working door can be realized.
Preferably, the side maintenance platform 9 is a combination of four movable platforms 11 with 4.5m height according to the arrangement position and the type of the upper lock head working door of the three gorge ship lift.
Claims (4)
1. The utility model provides a ship lift lock head working door maintenance platform which characterized in that: comprises a bottom maintenance platform (1) and a side maintenance platform (9);
the bottom maintenance platform (1) is driven to lift through the hoisting hoist (6) on two sides, the hoisting hoist (6) is arranged on the bent frame columns (5), and the bent frame columns (5) are arranged on the lock walls (12) on two sides of the ship lift channel;
the bottom maintenance platform (1) comprises a bottom walkway beam (2), an operation platform is laid on the bottom walkway beam (2), guide wheels are arranged on the left and right sides of the bottom walkway beam (2), and the guide wheels are matched with guide rails on a gate wall (12) and a gate head working door (13); a plurality of combined oil cylinders (3) are mounted at the bottom end of the bottom walkway beam (2), and the combined oil cylinders (3) are inserted into positioning columns on the brake head working door (13) to complete locking;
the side maintenance platform (9) is arranged on maintenance position platforms on the left side and the right side of the gate head working door (13), the side maintenance platform (9) comprises a fixed platform (10) and a plurality of sections of movable platforms (11), wherein four-corner flange plates are respectively arranged on the upper part and the lower part of each movable platform (11), and the movable platforms (11) are detachably connected with the movable platforms (11) through the four-corner flange plates;
the locking device (7) is installed on the left and right sides of the bottom walkway beam (2), the locking device (7) comprises a driving oil cylinder (701), a locking beam (702) and a locking groove (703), wherein the driving oil cylinder (701), the locking beam (702) and side plates of the bottom walkway beam (2) are hinged end to end, the locking groove (703) is arranged on the racking column (5), and when the driving oil cylinder (701) extends out, the locking beam (702) is clamped with the locking groove (703);
the guide wheels comprise side guide wheels (202), positive guide wheels (203) and reverse guide wheels (204), wherein the side guide wheels (202) and the reverse guide wheels (204) are matched with guide rails on the gate wall (12), and the positive guide wheels (203) are matched with a panel of the gate head working door (13) or a rear flange of a main longitudinal beam;
the positioning column is an L-shaped beam (4), the L-shaped beam (4) is welded on a longitudinal beam web plate of the brake head working door (13), and the front end of the L-shaped beam (4) is a horn-shaped box beam;
and a second locking hole (401) is formed in a web plate at the tail of the box-type beam, a first locking hole (302) is formed in the corresponding combined oil cylinder (3), and after the combined oil cylinder (3) is inserted into the L-shaped beam (4), the locking pin is inserted into the second locking hole (401) and locked with the first locking hole (302).
2. The vessel elevator lock head working door maintenance platform of claim 1, wherein: the hoisting hoist (6) comprises a driving motor (601), an output shaft of the driving motor (601) is connected with an input shaft of a speed reducer (603) through a coupling (602), an output shaft of the speed reducer (603) is connected with a winding drum (604), and a steel wire rope (605) is wound on the winding drum (604) and fixed after passing through a pulley (201); and a digital display stroke detection device (606) is arranged on the hoisting hoist (6).
3. The method for building and constructing the maintenance platform of the working door at the head of the ship lift according to any one of claims 1 to 2, is characterized by comprising the following steps:
step 1): the lock head access door of the ship lift is dropped to retain water, water between the access door and the lock head working door (13) is drained, and the lock head working door (13) is lifted to an access position and locked;
step 2): an operator A arrives at an operation platform at the top of the bent frame column (5) through a step ladder arranged on the bent frame column (5), and an operator B arrives at the installation position of the L-shaped beam (4) through an inner channel of the brake head working door (13);
step 3): an operator A operates 2 hoisting hoists (6) to pre-lift the bottom overhaul platform (1) for 5cm, then operates the driving oil cylinders (701) of 2 locking devices (7), the driving oil cylinders (701) drive the locking beams (702) to return, and the bottom overhaul platform (1) is unlocked;
step 4): the method comprises the following steps that 2 winch hoists (6) are operated to drive a bottom maintenance platform (1) to fall at a certain speed, side guide wheels (202) and reverse guide wheels (204) move downwards along guide rails arranged on a gate wall, guide rails of a positive guide wheel (203) are arranged on a gate head working door panel or a gate head working door main longitudinal beam rear flange, the winch hoists (6) descend to a set height to stop running, and a brake is applied to the gate;
step 5): an operator A operates the combined oil cylinders (3) to extend out one by one and inserts the combined oil cylinders into box beams of the corresponding L-shaped beams (4) respectively, an operator B inserts locking pins into first locking holes (302) of the corresponding combined oil cylinders (3) and second locking holes (401) of the L-shaped beams (4) respectively for locking, and the bottom overhaul platform (1) is built and constructed;
step 6): hoisting a movable platform (11) to the top of a fixed platform by using a crane, adjusting the positions of four foundation flanges of the movable platform (11) to enable the four foundation flanges of the movable platform (11) to be aligned with the four flanges at the top of the fixed platform (10) and to be fastened and connected by using bolts, and finishing the erection of the section 1 of the movable platform (11);
step 7): the movable platforms (11) are sequentially erected from bottom to top by adopting the method in the step 6) until the whole side maintenance platform is completely erected;
step 8): after the bottom overhaul platform (1) and the side overhaul platform (9) are built, respectively arranging safety nets at the suspension side;
step 9): after the overhaul of the working door of the brake head is finished, the safety net is removed, the movable platform (11) at the uppermost end is hung by a crane, the connecting bolt between the movable platform (11) at the uppermost end and the adjacent movable platform (11) below is removed, and the removal of the nth section of movable platform (11) is finished;
step 10): the movable platform (11) is sequentially dismantled from top to bottom by adopting the method in the step 9) until the whole movable platform (11) is dismantled;
step 11): an operator B moves out of the locking pins of the combined oil cylinder (3) and the L-shaped beam (4), the operator A operates the combined oil cylinder (3) to retract to the right position, and then operates the winch hoist (6) to drive the bottom maintenance platform (1) to lift until the bottom of the locking beam (702) of the locking device (7) is 5cm higher than the locking groove (703);
step 12): a driving oil cylinder (701) of the locking device (7) is operated to drive the locking beam (702) to be pushed out, then the winch hoist (6) is operated to drive the bottom maintenance platform (1) to fall, the bottom of the locking beam (702) of the locking device (7) is contacted with the locking groove (703), and the bottom maintenance platform (1) is locked; the upper brake of the winch hoist (6) is powered off, and the maintenance of the brake head working door (13) is completed.
4. The erection construction method of the ship lift lock head working door maintenance platform according to claim 3, characterized in that: a personnel channel is arranged on a fixing platform (10) of the side overhauling platform (9), and an overhauling person can reach the bottom overhauling platform (1) through the side overhauling platform (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010974377.2A CN112144497B (en) | 2020-09-16 | 2020-09-16 | Ship lift lock head working door maintenance platform and building method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010974377.2A CN112144497B (en) | 2020-09-16 | 2020-09-16 | Ship lift lock head working door maintenance platform and building method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN112144497A CN112144497A (en) | 2020-12-29 |
| CN112144497B true CN112144497B (en) | 2021-09-14 |
Family
ID=73893103
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010974377.2A Active CN112144497B (en) | 2020-09-16 | 2020-09-16 | Ship lift lock head working door maintenance platform and building method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112144497B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114232579B (en) * | 2021-12-31 | 2022-12-20 | 长江三峡通航管理局 | Rapid maintenance method and maintenance platform for ship lift compartment door |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE10202150A1 (en) * | 2002-01-22 | 2003-07-31 | Olt Oberflaechen Luft Und Troc | Maintenance working bay for inspection and repair of railway wagon has overhead gantry with extending gantry and access pit under support rails to allow access to all parts of vehicle |
| CN105220911B (en) * | 2015-10-28 | 2017-06-23 | 中国长江电力股份有限公司 | A kind of power station flood discharge runner inspection platform and its erection method |
-
2020
- 2020-09-16 CN CN202010974377.2A patent/CN112144497B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN112144497A (en) | 2020-12-29 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US5255489A (en) | Construction apparatus for buildings and constructing method therewith | |
| CN108033367B (en) | Synchronous lifting device and lifting method for steel column and cylinder frame alternately supported steel platform and tower crane | |
| CN108625483B (en) | Equipment for jacking construction of assembled additional elevator shaft structure | |
| CN110820579A (en) | Construction method based on movable steel box girder road-crossing construction working platform | |
| CN105839542B (en) | Bridge High-pier rises outrigger turning-over certainly | |
| CN112144497B (en) | Ship lift lock head working door maintenance platform and building method thereof | |
| CN107142954B (en) | Steel hanging box lifting system for integral lifting and lifting method thereof | |
| CN113265952A (en) | Hoisting method for integral prefabrication of steel cover beam | |
| CN108928783B (en) | Shear type climbing hoisting machine for existing building additionally installed elevator | |
| CN109095319B (en) | Construction elevator and climbing frame integrated operation system | |
| CN105220911A (en) | A kind of power station flood discharge runner inspection platform and erection method thereof | |
| CN216141084U (en) | Built-in well construction elevator | |
| CN211472175U (en) | Aerial working platform device suitable for steel bridge construction | |
| CN111455854B (en) | Semi-automatic protective shed frame used in construction of viaduct crossing railway and erection method | |
| CN210563531U (en) | Steel structure support for building protection | |
| CN114108446A (en) | High-speed railway stay cable bridge structure and construction method | |
| CN210563326U (en) | Overhead unit type overhead sliding splicing operation platform | |
| CN112761187A (en) | Electric lifting movable mould frame for large-diameter working well | |
| CN113216593A (en) | Anti-falling hoisting device for elevator shaft of high-rise building | |
| CN111188273A (en) | Large-section steel truss girder erection system of large-span steel-concrete composite bridge and construction method | |
| CN220116071U (en) | Travelling car operation platform | |
| CN220767752U (en) | But full section construction of large-span overwater operation beam bottom is through-hole removal operation platform | |
| CN116181041B (en) | Building machine of multilayer quick construction | |
| CN220827702U (en) | Steel structure bridge girth construction platform capable of being quickly disassembled and assembled and moved | |
| CN116335398B (en) | Multilayer rapid construction method |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |