CN116101910B - Prefabricated slab beam lifting system of hoisting machine - Google Patents
Prefabricated slab beam lifting system of hoisting machine Download PDFInfo
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- CN116101910B CN116101910B CN202211540821.5A CN202211540821A CN116101910B CN 116101910 B CN116101910 B CN 116101910B CN 202211540821 A CN202211540821 A CN 202211540821A CN 116101910 B CN116101910 B CN 116101910B
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- 230000007246 mechanism Effects 0.000 claims abstract description 44
- 230000002457 bidirectional effect Effects 0.000 claims description 22
- 230000000087 stabilizing effect Effects 0.000 claims description 11
- 238000009434 installation Methods 0.000 claims description 4
- 230000000149 penetrating effect Effects 0.000 claims description 4
- 230000002093 peripheral effect Effects 0.000 claims description 4
- 210000002421 cell wall Anatomy 0.000 claims description 3
- 238000000034 method Methods 0.000 abstract description 10
- 238000005265 energy consumption Methods 0.000 abstract description 3
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 238000010276 construction Methods 0.000 description 4
- 238000006073 displacement reaction Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 2
- 230000003028 elevating effect Effects 0.000 description 2
- 230000002349 favourable effect Effects 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 210000001503 joint Anatomy 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 239000011435 rock Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C19/00—Cranes comprising trolleys or crabs running on fixed or movable bridges or gantries
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C13/00—Other constructional features or details
- B66C13/04—Auxiliary devices for controlling movements of suspended loads, or preventing cable slack
- B66C13/06—Auxiliary devices for controlling movements of suspended loads, or preventing cable slack for minimising or preventing longitudinal or transverse swinging of loads
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C5/00—Base supporting structures with legs
- B66C5/02—Fixed or travelling bridges or gantries, i.e. elongated structures of inverted L or of inverted U shape or tripods
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Carriers, Traveling Bodies, And Overhead Traveling Cranes (AREA)
Abstract
The application relates to the technical field of hoisting machines, in particular to a precast slab beam hoisting system of a hoisting machine. The precast slab beam lifting system of the hoisting machine comprises an auxiliary girder, a transverse traveling wheel box, a supporting beam, a transverse traveling crown block, a lifting mechanism and a supporting leg mechanism, wherein the auxiliary girder is fixedly connected to the supporting leg mechanism, the transverse traveling wheel box is slidably connected to the auxiliary girder, the supporting beam is fixedly connected to the transverse traveling wheel box, the transverse traveling crown block is slidably connected to the supporting beam, the lifting mechanism comprises a winch and a lifting rope, the winch is fixedly connected to the transverse traveling crown block, one end of the lifting rope is fixedly connected with the output end of the winch, and the other end of the lifting rope is connected with the precast slab beam. The application can keep the auxiliary girder fixed in the process of lifting and moving the precast slab beam, thereby leading the lifting system to be more stable, and being beneficial to reducing the energy consumption because only the precast slab beam is required to be lifted.
Description
Technical Field
The invention relates to the technical field of hoisting machines, in particular to a precast slab beam hoisting system of a hoisting machine.
Background
The hoisting machine is mainly used for erecting the prefabricated plate beams, and the hoisting machine is used for lifting the prefabricated plate beams and then conveying the prefabricated plate beams to a position for laying down, so that the prefabricated plate beams can be erected at the designated position.
In the related art, the lifting mechanism of bridge girder erection machine is disclosed, including the thousand-foot worm dolly, the base and remove the frame, the inside of thousand-foot worm dolly roof both sides all is provided with the moving structure, and the top of thousand-foot worm dolly all is provided with the base, one side of base one side thousand-foot worm dolly roof is provided with control panel, one side of base all is provided with conveying structure, and one side on base top all is provided with the third pneumatic rod, four inside corners of base all evenly is provided with first pneumatic rod, and the top of first pneumatic rod all extends to the top of base, the inside intermediate position department of base all is provided with the second pneumatic rod, and the top of second pneumatic rod all extends to the top of base, the equal fixedly connected with of first pneumatic rod top removes the frame, and all evenly there is the baffle in four inside corners of removal frame through the articulated elements, the top of removing the frame all is provided with the support frame, and four inside corners of support frame all set up flutedly, one side of baffle all extends to the inside of recess. The lifting mechanism can allow the supporting frame to pass through unidirectionally, and the supporting frame is lifted and accumulated by utilizing the cooperation of the baffle and the groove, so that the device is continuously lifted.
Aiming at the related technology, the inventor considers that the supporting frame is lifted up synchronously along with the precast beam slab, so that the stability of the supporting frame is reduced, and the potential safety hazard is caused.
Disclosure of Invention
In order to improve stability of a lifting system of a hoisting machine, the application provides a prefabricated plate girder lifting system of the hoisting machine.
The application provides a precast slab beam lifting system of a hoisting machine, which adopts the following technical scheme:
The utility model provides a precast slab roof beam lifting system of lifting machine, includes auxiliary girder, sideslip wheel case, stretcher, sideslip crown block, is used for promoting precast slab roof beam's elevating system and is used for sliding connection landing leg mechanism on the lifting machine girder, auxiliary girder fixed connection is on landing leg mechanism, sideslip wheel case sliding connection is on auxiliary girder, stretcher fixed connection is on the sideslip wheel case, sideslip crown block sliding connection is on the stretcher, elevating system includes hoist engine and lifting rope, hoist engine fixed connection is on the sideslip crown block, the one end of lifting rope and the output fixed connection of hoist engine, the other end of lifting rope is connected with precast slab roof beam.
Through adopting above-mentioned technical scheme, landing leg mechanism can remove along the hoisting machine girder, and after landing leg mechanism moved to the assigned position, the auxiliary girder was located to wait to install the department top promptly, and this moment, with lifting rope and prefabricated slab beam fixed, again operation sideslip wheel case and sideslip crown block remove, can lift the pump with prefabricated slab beam and remove to the assigned position. In the process of lifting and moving the prefabricated plate beams, the supporting leg mechanism and the auxiliary main beam are fixed and do not move, and the supporting beam moves horizontally at the same height, so that the whole lifting system is more stable in the moving process of the prefabricated plate beams, and the energy consumption is reduced due to the fact that only the prefabricated plate beams are required to be lifted.
In a specific implementation manner, the supporting leg mechanism comprises a main supporting leg, an auxiliary supporting leg and a longitudinal moving wheel box, wherein the main supporting leg and the auxiliary supporting leg are fixedly connected to the auxiliary main girder, the longitudinal moving wheel box is installed at one ends of the main supporting leg and the auxiliary supporting leg, which are far away from the auxiliary main girder, and the longitudinal moving wheel box is in sliding connection with the main girder of the hoisting machine.
Through adopting above-mentioned technical scheme, the operation is indulged and is moved the wheel case, can drive main landing leg and auxiliary landing leg and remove along the lifting machine girder to remove auxiliary girder to prefabricated plate girder top. The auxiliary main beam can be fixed at the same position by operating the longitudinal moving wheel box for fixation, and the stability of the whole lifting system in the lifting process can be improved.
In a specific embodiment, the hoisting rope comprises a hoisting rope, a hoisting beam, a connecting rope and a hook for connection with the prefabricated slab beam, one end of the hoisting rope is fixedly connected with the output end of the hoist, the other end of the hoisting rope is fixedly connected with the hoisting beam, one end of the connecting rope is connected with the hoisting beam, and the other end of the connecting rope is fixedly connected with the hook.
By adopting the technical scheme, the hoist can wind the hoist rope at the output end, and can pull the lifting beam to rise, so that the lifting work of the precast slab beam is completed. The connecting ropes are pulled to different directions of the lifting beams, so that the hooks can be moved to the proper positions, and the prefabricated plate beams can be stably fixed on the hooks.
In a specific implementation manner, the traversing crown block is provided with an auxiliary stabilizing mechanism, the auxiliary stabilizing mechanism comprises a telescopic arm, a mounting beam, a clamping arm and a driving component for driving the clamping arm to move, the telescopic arm is fixedly connected to the traversing crown block, the mounting beam is fixedly connected to one end of the telescopic arm, which is far away from the traversing crown block, at least two clamping arms are slidably connected to the mounting beam, the driving component is mounted on the mounting beam, and the driving component is connected with the clamping arm.
Through adopting above-mentioned technical scheme, when lifting rope and prefabricated roof beam link together the back, through the flexible arm of operation and drive and move the subassembly, remove the centre gripping arm to prefabricated roof beam department to at least two centre gripping arms of drive press from both sides tight prefabricated roof beam, can reduce prefabricated roof beam and rock in the removal in-process, thereby further improve whole lifting system's stability.
In a specific implementation mode, the driving assembly comprises a bidirectional screw rod, a toothed ring, a driving motor, a driving gear and a limiting piece for limiting the driving gear to rotate, wherein the bidirectional screw rod is rotationally connected to a mounting beam, the threads at two ends of the bidirectional screw rod are opposite in direction, screw holes are formed in the clamping arms, the bidirectional screw rod penetrates through the screw holes, the toothed ring is in threaded connection with the hole wall of the screw holes, the toothed ring is coaxially connected with the bidirectional screw rod, the driving motor and the limiting piece are fixedly connected to the mounting beam, the driving gear is fixedly connected to a motor shaft of the driving motor, the driving gear is meshed with the peripheral wall of the toothed ring, and the limiting piece is clamped with the driving gear.
Through adopting above-mentioned technical scheme, driving motor, drive gear and ring gear cooperation can drive two-way lead screw and rotate, consequently, the centre gripping arm that is located two-way lead screw both ends can be to opposite direction removal to realize the effect that the centre gripping arm pressed from both sides tightly or breaks away from prefabricated slab beam. And because the thread self-locking function of the bidirectional screw rod, when the limiting piece limits the rotation of the driving gear, the clamping arm can be stably fixed on the mounting beam, so that the prefabricated plate beam is more stable in the moving process.
In a specific implementation mode, the limiting piece comprises a limiting cylinder and a limiting block, the limiting cylinder is fixedly connected to the mounting beam, the limiting block is fixedly connected to the telescopic end of the limiting cylinder, and the limiting block is clamped with the driving gear.
Through adopting above-mentioned technical scheme, spacing cylinder is used for driving the stopper and removes, and when the stopper inserts between two adjacent teeth on the driving gear periphery wall, the stopper can with driving gear joint to the restriction driving gear rotates. When the limiting block is separated from the driving gear, the driving gear can rotate under the driving of the driving motor.
In a specific implementation mode, the clamping arm comprises a sliding block, a clamping rod and a roller, a sliding groove is formed in the bottom wall of the mounting beam, an inner groove is formed in the groove wall of the sliding groove, the sliding block and the roller are arranged in the inner groove, the roller is arranged on the sliding block, the roller is in butt joint with the groove wall of the inner groove, the clamping rod is inserted into the sliding groove, and the clamping rod is fixedly connected with the sliding block.
By adopting the technical scheme, the roller is favorable for reducing the friction force born by the sliding block and is favorable for moving the sliding block and the clamping rod. The sliding block is used for connecting the clamping rods on the mounting beam in a sliding manner, so that the clamping rods are separated from the mounting beam, and the clamping rods can stably clamp the prefabricated slab beam.
In a specific implementation mode, the telescopic arm comprises a frame and a telescopic hydraulic cylinder, the frame is fixedly connected to the traversing crown block, the stretcher beam is arranged in the frame in a penetrating mode, the telescopic hydraulic cylinder is fixedly connected to the frame, and the mounting beam is fixedly connected to one end, far away from the frame, of the telescopic hydraulic cylinder.
Through adopting above-mentioned technical scheme, the frame is used for fixing flexible pneumatic cylinder on the sideslip crown block, and flexible pneumatic cylinder extends or shortens, can drive the centre gripping arm and remove prefabricated plate girder department, and the centre gripping arm of being convenient for presss from both sides tight prefabricated plate girder.
In summary, the present application includes at least one of the following beneficial technical effects:
1. the auxiliary main beam, the transverse moving wheel box, the supporting beam, the transverse moving crown block, the lifting mechanism and the supporting leg mechanism are arranged, so that the auxiliary main beam can be kept fixed in the process of lifting and moving the prefabricated plate beam, a lifting system is more stable, and the energy consumption is reduced because only the prefabricated plate beam needs to be lifted;
2. according to the application, the telescopic arm, the mounting beam, the clamping arm and the driving and moving assembly are arranged, so that the prefabricated plate beam can be clamped in the process of moving the prefabricated plate beam, and the shaking of the prefabricated plate beam in the moving process can be reduced, thereby further improving the stability of the whole lifting system;
3. according to the application, the two-way screw rod, the toothed ring, the driving motor, the driving gear and the limiting piece are arranged, so that the clamping arms at the two ends of the two-way screw rod can be driven to move in opposite directions at the same time, and the clamping arms can clamp or separate from the prefabricated plate girder.
Drawings
Fig. 1 is a schematic structural view of a precast slab beam lifting system of a hoisting machine in embodiment 1 of the present application.
Fig. 2 is a schematic view of the structure of the lifting mechanism in embodiment 1 of the present application.
Fig. 3 is a schematic structural view of a precast slab beam lifting system of a hoisting machine in embodiment 2 of the present application.
Fig. 4 is a schematic structural view of an auxiliary stabilizing mechanism in embodiment 2 of the present application.
Fig. 5 is a cross-sectional view of the clamp arm in embodiment 2 of the present application.
Fig. 6 is a sectional view of the displacement assembly in embodiment 2 of the present application.
Reference numerals illustrate:
1. An auxiliary main beam; 2. a traversing wheel box; 3. a beam; 4. a traversing crown block; 5. a lifting mechanism; 51. a hoist; 52. a hoisting rope; 521. a hoisting rope; 522. lifting the beam; 523. a connecting rope; 524. a hook; 6. a leg support mechanism; 61. a main leg; 62. an auxiliary leg; 63. a longitudinally moving wheel box; 7. a telescoping arm; 71. a frame; 72. a telescopic hydraulic cylinder; 8. mounting a beam; 81. a slip groove; 82. an inner tank; 83. a groove; 9. a clamping arm; 91. a screw hole; 92. a sliding block; 93. a clamping rod; 94. a roller; 10. a displacement assembly; 101. a two-way screw rod; 102. a toothed ring; 103. a driving motor; 104. a drive gear; 105. a limiting piece; 1051. a limit cylinder; 1052. a limiting block; 11. hoisting a main beam of the machine; 12. a track.
Detailed Description
Referring to fig. 1, the hoist includes a hoist girder 11, a rail 12 and a lifting system, wherein the girder and the rail 12 are fixedly installed on a concrete foundation, the rail 12 is parallel to the hoist girder 11, and the girder and the rail 12 are slidably connected with the lifting system. And (3) moving the lifting system to a to-be-constructed position, and then operating the lifting system to move the prefabricated slab beam to the to-be-constructed position, so that the construction can be performed. The lifting system is stable in the process of lifting and moving the precast slab beam, and has important significance for maintaining construction safety.
The application is described in further detail below with reference to fig. 1-6.
In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the apparatus or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present invention.
The embodiment of the application discloses a prefabricated plate girder lifting system of a hoisting machine.
Example 1
Referring to fig. 1, the prefabricated slab beam lifting system of the hoisting machine comprises a secondary main beam 1, a traversing wheel box 2, a stretcher beam 3, a traversing crown block 4, a lifting mechanism 5 and a supporting leg mechanism 6. The leg mechanism 6 is slidably connected to the main beam and the rail 12, and the leg mechanism 6 is disposed in the vertical direction. The auxiliary girder 1 is riveted at the top end of the supporting leg mechanism 6, the auxiliary girder 1 is arranged along the horizontal direction, the transverse moving wheel box 2 is connected to the auxiliary girder 1 in a sliding way, the supporting beam 3 is riveted on the transverse moving wheel box 2, and the supporting beam 3 is arranged along the horizontal direction and is mutually perpendicular to the auxiliary girder 1. The traversing crown block 4 is connected on the stretcher beam 3 in a sliding way, and the lifting mechanism 5 is arranged on the traversing crown block 4.
The supporting leg mechanism 6 moves along the main beam 11 of the hoisting machine, the traversing gear box 2 moves along the auxiliary main beam 1, and the traversing crown block 4 moves along the stretcher beam 3. The supporting leg mechanism 6, the transverse moving wheel box 2 and the transverse moving crown block 4 are respectively operated, so that the lifting mechanism 5 can be moved to the position above the to-be-constructed position.
Referring to fig. 1, the leg mechanism 6 includes a main leg 61, an auxiliary leg 62, and a vertical movement wheel box 63, the main leg 61 and the auxiliary leg 62 are all disposed in the vertical direction, the top ends of the main leg 61 and the auxiliary leg 62 are all riveted with the auxiliary main girder 1, and the bottom ends of the auxiliary leg 62 of the main leg 61 are all riveted with the vertical movement wheel box 63. The longitudinal wheel box 63 on the auxiliary leg 62 is in sliding connection with the main beam 11 of the hoisting machine, and the longitudinal wheel box 63 on the main leg 61 is in sliding connection with the rail 12.
The auxiliary girder 1 can be moved to above the place to be constructed by operating the vertical moving wheel box 63 to move.
Referring to fig. 2, the hoisting mechanism 5 includes a hoist 51 and a hoisting rope 52, and the hoist 51 is riveted to the traversing crown block 4. The hoisting ropes 52 comprise hoisting ropes 521, hoisting beams 522, connecting ropes 523 and hooks 524. The hoisting ropes 521 are several, the same end of all the hoisting ropes 521 is fixedly connected with the output end of the hoist 51, the other end of the hoisting ropes 521 is fixedly connected with the lifting beam 522, and the lifting beam 522 is positioned below the stretcher beam 3. The connecting ropes 523 are several, the top ends of all connecting ropes 523 are fixedly connected with the lifting beam 522, and the bottom end of each connecting rope 523 is fixedly connected with a hook 524.
The implementation principle of the embodiment 1 is as follows: the vertical moving wheel box 63 is operated to move, the auxiliary girder 1 is moved to the position above the to-be-constructed place, and then the vertical moving wheel box 63 is operated to be fixed. And then the transverse moving wheel box 2 and the transverse moving crown block 4 are operated to slide, the supporting beam 3 is moved to the upper part of the prefabricated plate beam, and then the transverse moving wheel box 2 and the transverse moving crown block 4 are operated to be fixed.
And then starting the winch 51, moving the lifting beam 522 and the hooks 524 to the upper part of the precast slab beam, clamping the hooks 524 with the steel bars on the precast slab beam, and operating the winch 51 to pull the lifting beam 522, wherein the precast slab beam and the lifting beam 522 synchronously move.
When the precast panel beam is moved to a proper height, the lifting beam 522 is stopped from being lifted. And then, the transverse traveling crane 4 is operated to move, after the precast slab beam is moved to the position above the position to be constructed, the transverse traveling crane 4 is stopped to move, then, the winch 51 is operated, and the position to be constructed is placed below the precast slab beam, so that the lifting and moving work of the precast slab beam is completed.
Example 2
Referring to fig. 3 and 4, this embodiment is different from embodiment 1 in that an auxiliary stabilizing mechanism is provided on the traversing crown block 4. There are two auxiliary stabilizing mechanisms, and the lifting beam 522 is located between the two auxiliary stabilizing mechanisms.
The auxiliary stabilizing mechanism comprises a telescopic arm 7, a mounting beam 8, a clamping arm 9 and a displacement assembly 10. The telescopic boom 7 sets up along vertical direction, and telescopic boom 7's top and sideslip crown block 4 fixed connection, and installation roof beam 8 rivet is in telescopic boom 7's bottom, and installation roof beam 8 sets up along the horizontal direction, and the length direction of installation roof beam 8 is perpendicular with the length direction of stretcher beam 3. The number of the clamping arms 9 of each auxiliary stabilizing mechanism may be two, three or four, etc., and the auxiliary stabilizing mechanism of this embodiment has two clamping arms 9, one clamping arm 9 is slidably connected to the right end of the mounting beam 8, and the other clamping arm 9 is slidably connected to the left end of the mounting beam 8.
Referring to fig. 4, the telescopic arm 7 includes a frame 71 and a telescopic hydraulic cylinder 72, the frame 71 is sleeved on the beam 3, the top end of the frame 71 is riveted with the traversing crown block 4, the telescopic hydraulic cylinder 72 is arranged in the vertical direction, the top end of the telescopic hydraulic cylinder 72 is riveted with the bottom end of the frame 71, and the telescopic end of the telescopic hydraulic cylinder 72 faces downwards.
Referring to fig. 4 and 5, the mounting beam 8 is riveted to the bottom end of the telescopic cylinder 72, and the mounting beam 8 is perpendicular to the telescopic cylinder 72. The bottom wall of the mounting beam 8 is provided with a sliding groove 81, the groove wall of the sliding groove 81 is provided with an inner groove 82, and the length direction of the sliding groove 81 and the length direction of the inner groove 82 are the same as the length direction of the mounting beam 8.
The clamping arm 9 includes sliding block 92, clamping rod 93 and gyro wheel 94, and sliding block 92 and gyro wheel 94 all are located inside groove 82, and gyro wheel 94 has a plurality of, and gyro wheel 94 installs on sliding block 92, and gyro wheel 94 and the cell wall butt of inside groove 82, gyro wheel 94 erect sliding block 92 in inside groove 82. The holding rod 93 is disposed in the vertical direction, and the top end of the holding rod 93 is inserted into the sliding groove 81 and welded to the sliding block 92.
Referring to fig. 5 and 6, the displacement assembly 10 includes a bidirectional screw rod 101, a toothed ring 102, a driving motor 103, a driving gear 104, and a stopper 105. The toothed ring 102 is a ring with teeth on the outer peripheral wall, and the bidirectional screw rod 101 is inserted into the toothed ring 102 and integrally connected with the toothed ring 102. The toothed ring 102 is positioned in the middle of the bidirectional screw rod 101, and the screw threads of the bidirectional screw rods 101 on two sides of the toothed ring 102 are opposite in direction. The bidirectional screw rod 101 and the toothed ring 102 are both positioned in the inner groove 82, and both ends of the bidirectional screw rod 101 are both rotationally connected with the end wall of the inner groove 82. The sliding block 92 is provided with a screw hole 91, and the bidirectional screw rod 101 is arranged in the screw hole 91 in a penetrating way and is in threaded connection with the hole wall.
The groove wall of the inner groove 82 is provided with a groove 83, the groove 83 penetrates through the top wall of the mounting beam 8, and the driving motor 103 and the driving gear 104 are located in the groove 83. The driving motor 103 is riveted with the groove wall of the groove 83, the driving gear 104 is coaxially connected to the motor shaft of the driving motor 103, and the driving gear 104 is meshed with the outer peripheral wall of the toothed ring 102.
Referring to fig. 6, the limiting member 105 includes a limiting cylinder 1051 and a limiting block 1052, the limiting cylinder 1051 is riveted on the top wall of the mounting beam 8, the telescopic ends of the limiting block 1052 and the limiting cylinder 1051 are inserted into the groove 83, and the limiting block 1052 is riveted with the telescopic end of the limiting cylinder 1051.
The limiting cylinder 1051 is operated to extend, the limiting cylinder 1051 pushes the limiting block 1052 to be close to the driving gear 104, and after the limiting block 1052 is inserted between two adjacent teeth of the driving gear 104, the limiting cylinder 1051 is closed, and the limiting block 1052 can stop the driving gear 104 from rotating. When the limiting cylinder 1051 is shortened, the limiting block 1052 can be pulled away from the driving gear 104, and after the limiting block 1052 is separated from the driving gear 104, the limiting cylinder 1051 is closed, and the driving gear 104 can rotate under the driving of the driving motor 103.
The implementation principle of the embodiment 2 is as follows: when the prefabricated plate beam is lifted to a proper height, the winch 51 is closed, the telescopic hydraulic cylinder 72 is started, the telescopic hydraulic cylinder 72 pushes the mounting beam 8 to move downwards, when the clamping rods 93 move to the position above the prefabricated plate beam, the driving motor 103 is started, the driving motor 103 drives the bidirectional screw to rotate, two sliding blocks 92 on the same bidirectional screw rotate in the directions away from each other, the clamping rods 93 move synchronously along with the sliding blocks 92, and when the distance between the two clamping rods 93 is greater than the width of the prefabricated plate beam, the driving motor 103 is closed.
Then, the holding rods 93 are pushed to move downward continuously, after the prefabricated plate beam is inserted between the two holding rods 93, the telescopic hydraulic cylinder 72 is closed, then the driving motor 103 is started to rotate reversely, the two sliding blocks 92 on the same bidirectional screw rod move towards the directions approaching to each other, and when the two holding rods 93 clamp the prefabricated plate beam, the driving motor 103 is closed.
And then the limiting cylinder 1051 is started, the limiting cylinder 1051 pushes the limiting block 1052 to move, when the limiting block 1052 is clamped with the driving gear 104, the limiting cylinder 1051 is closed, and the driving gear 104 is fixed on a motor shaft of the driving motor 103.
Then the prefabricated plate beam is moved to the position above the construction site, the limiting block 1052 is separated from contact with the driving gear 104, the two clamping rods 93 are driven to be far away from the prefabricated plate beam, and then the prefabricated plate beam can be lowered to the construction site.
The above embodiments are not intended to limit the scope of the present application, so: all equivalent changes in structure, shape and principle of the application should be covered in the scope of protection of the application.
Claims (3)
1. The utility model provides a precast slab roof beam lifting system of hoisting machine which characterized in that: the hoisting device comprises an auxiliary main beam (1), a transverse moving wheel box (2), a supporting beam (3), a transverse moving crown block (4), a hoisting mechanism (5) for hoisting a precast slab beam and a supporting leg mechanism (6) for being slidingly connected to a main beam (11) of a hoisting machine, wherein the auxiliary main beam (1) is fixedly connected to the supporting leg mechanism (6), the transverse moving wheel box (2) is slidingly connected to the auxiliary main beam (1), the supporting beam (3) is fixedly connected to the transverse moving wheel box (2), the transverse moving crown block (4) is slidingly connected to the supporting beam (3), the hoisting mechanism (5) comprises a hoisting machine (51) and a hoisting rope (52), the hoisting machine (51) is fixedly connected to the transverse moving crown block (4), one end of the hoisting rope (52) is fixedly connected to the output end of the hoisting machine (51), and the other end of the hoisting rope (52) is connected to the precast slab beam.
The hoisting rope (52) comprises a hoisting rope (521), a hoisting beam (522), a connecting rope (523) and a hook (524) used for being connected with the precast slab beam, one end of the hoisting rope (521) is fixedly connected with the output end of the hoist (51), the other end of the hoisting rope (521) is fixedly connected with the hoisting beam (522), one end of the connecting rope (523) is connected with the hoisting beam (522), and the other end of the connecting rope (523) is fixedly connected with the hook (524);
The device is characterized in that an auxiliary stabilizing mechanism is arranged on the traversing crown block (4), the auxiliary stabilizing mechanism comprises a telescopic arm (7), a mounting beam (8), a clamping arm (9) and a driving and moving assembly (10) for driving the clamping arm (9) to move, the telescopic arm (7) is fixedly connected to the traversing crown block (4), the mounting beam (8) is fixedly connected to one end, far away from the traversing crown block (4), of the telescopic arm (7), at least two clamping arms (9) are slidably connected to the mounting beam (8), the driving and moving assembly (10) is arranged on the mounting beam (8), and the driving and moving assembly (10) is connected with the clamping arm (9);
The driving assembly (10) comprises a bidirectional screw rod (101), a toothed ring (102), a driving motor (103), a driving gear (104) and a limiting piece (105) for limiting the rotation of the driving gear (104), wherein the bidirectional screw rod (101) is rotationally connected to a mounting beam (8), the screw threads at two ends of the bidirectional screw rod (101) are opposite in direction, screw holes (91) are formed in clamping arms (9), the bidirectional screw rod (101) is arranged in the screw holes (91) in a penetrating mode, the bidirectional screw rod (101) is in threaded connection with the hole walls of the screw holes (91), the toothed ring (102) is coaxially connected with the bidirectional screw rod (101), the driving motor (103) and the limiting piece (105) are fixedly connected to the mounting beam (8), the driving gear (104) is fixedly connected to a motor shaft of the driving motor (103), the driving gear (104) is meshed with the peripheral walls of the toothed ring (102), and the limiting piece (105) is clamped with the driving gear (104);
The limiting piece (105) comprises a limiting cylinder (1051) and a limiting block (1052), the limiting cylinder (1051) is fixedly connected to the mounting beam (8), the limiting block (1052) is fixedly connected to the telescopic end of the limiting cylinder (1051), and the limiting block (1052) is clamped with the driving gear (104);
the telescopic boom (7) comprises a frame (71) and a telescopic hydraulic cylinder (72), the frame (71) is fixedly connected to the traversing crown block (4), the supporting beam (3) is arranged in the frame (71) in a penetrating mode, the telescopic hydraulic cylinder (72) is fixedly connected to the frame (71), and the mounting beam (8) is fixedly connected to one end, far away from the frame (71), of the telescopic hydraulic cylinder (72).
2. The precast slab beam lifting system of a hoisting machine of claim 1, wherein: the supporting leg mechanism (6) comprises a main supporting leg (61), an auxiliary supporting leg (62) and a longitudinal moving wheel box (63), wherein the main supporting leg (61) and the auxiliary supporting leg (62) are fixedly connected to the auxiliary main girder (1), the longitudinal moving wheel box (63) is installed at one end, far away from the auxiliary main girder (1), of the main supporting leg (61) and the auxiliary supporting leg (62), and the longitudinal moving wheel box (63) is in sliding connection with the main girder (11) of the hoisting machine.
3. The precast slab beam lifting system of a hoisting machine of claim 1, wherein: the utility model provides a clamping arm (9) is including sliding block (92), clamping lever (93) and gyro wheel (94), be equipped with on the diapire of installation roof beam (8) and slide groove (81), be equipped with inside groove (82) on the cell wall of sliding groove (81), sliding block (92) and gyro wheel (94) are all located in inside groove (82), gyro wheel (94) are installed on sliding block (92), gyro wheel (94) and the cell wall butt of inside groove (82), clamping lever (93) are inserted and are located in sliding groove (81), clamping lever (93) and sliding block (92) fixed connection.
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| CN116101910A (en) | 2023-05-12 |
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