CN211312219U

CN211312219U - Split type cable carrying crane for erecting suspension bridge main beam

Info

Publication number: CN211312219U
Application number: CN201921942532.1U
Authority: CN
Inventors: 杨恒; 苏巧江; 刘迪祥; 闫勇; 盛希; 刘玉兰; 杨晓
Original assignee: Hunan Road and Bridge Construction Group Co Ltd
Current assignee: Hunan Road and Bridge Construction Group Co Ltd
Priority date: 2019-11-12
Filing date: 2019-11-12
Publication date: 2020-08-21
Anticipated expiration: 2029-11-12

Abstract

The utility model discloses a split type cable carries loop wheel machine for setting up suspension bridge girder, including installing automobile body, movable mounting that can follow the main push-towing rope removal on the main push-towing rope and can hold tightly the main push-towing rope and open wing clamp subassembly through the elevating gear drive under the automobile body, hang by wing clamp subassembly and can the level pivoted subassembly that opens and shuts, hang the tackle pulley group on the subassembly that opens and shuts, hang girder hoist, the mountable on the tackle pulley group spare lifting unit that opens and shuts of girder on the subassembly that opens and shuts by wing clamp subassembly. The utility model has the characteristics of the suitability is strong, economic nature is good, bearing capacity is big, and the ability of lifting by crane the girder can exceed 400 tons, and the loop wheel machine removes lightly.

Description

Split type cable carrying crane for erecting suspension bridge main beam

Technical Field

The utility model belongs to suspension bridge construction equipment, concretely relates to split type cable carries loop wheel machine for setting up suspension bridge girder.

Background

In the construction of erecting the main girder of the suspension bridge, a cable-crossing crane is commonly used for lifting the main girder for installation, each new project of the cable-crossing crane needs to be modified, and the cost can reach half of the price of the new crane; the installation of the cross-cable crane is also complex, and a plurality of heavy components need to be assembled at high altitude; the cross-cable crane is driven by multi-purpose fuel oil power generation, so that the oil consumption is high, even if the cost is high.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a split type cable crane for erectting suspension bridge girder that suitability is strong, economic nature is good, bearing capacity is big.

Realize the utility model discloses the technical scheme that the purpose was adopted as follows:

the utility model provides a split type cable carries loop wheel machine for setting up suspension bridge girder, including installing automobile body, movable mounting that can follow the main push-towing rope removal on the main push-towing rope and can hold tightly the main push-towing rope and open wing clamp subassembly through the elevating gear drive under the automobile body, by the wing clamp subassembly hang and can the level pivoted subassembly that opens and shuts, hang the tackle pulley group on the subassembly that opens and shuts, hang girder hoist, the main girder reserve hoisting assembly of mountable on the subassembly that opens and shuts of tackle on the tackle pulley group.

The automobile body includes along the front and back wheel that the main push-towing rope removed, installs the frame on the wheel around, elevating gear is including installing exhibition wing hoisting frame and the hoisting jack on the frame, run through two central reference columns of installing on the automobile body up-and-down motion, establish respectively below the automobile body with two central locating piece of two central reference column fixed connection, establish below the automobile body with two central locating piece fixed connection's center pin.

The wing clamp assembly comprises a left unfolding wing and a right unfolding wing which are hinged on the central shaft, two bottom clamping pieces correspondingly installed at the bottoms of the left unfolding wing and the right unfolding wing, two side clamping pieces correspondingly hinged on the two bottom clamping pieces, and a top clamping piece hinged between the two side clamping pieces, wherein the two bottom clamping pieces, the two side clamping pieces and the top clamping piece form a surrounding structure which can hold the main cable tightly and can be opened; and a lifting jack of the lifting device is respectively connected with the outer end parts of the left and right wing-unfolding in the wing clamp component through a wing-unfolding rope and a pulley on the wing-unfolding lifting frame.

The subassembly that opens and shuts is including installing left and right exhibition wing jib at left and right exhibition wing outside end portion, articulating the horizontal beam couple of right side exhibition wing jib lower extreme and installing the exhibition wing balancing weight under the horizontal beam couple, articulating the horizontal beam activity of left side exhibition wing jib lower extreme and hanging the piece, but horizontal rotation install the horizontal beam under the horizontal beam activity hangs the piece, install the horizontal beam balancing weight at the horizontal beam left end.

The tackle pulley set comprises a tackle pulley set rotating beam arranged on the horizontal beam and positioned on the right side of the horizontal beam movable hoisting block, an upper tackle arranged below the tackle pulley set rotating beam, a lower tackle arranged below the upper tackle and connected through a tackle pulley set steel wire rope, and a lower tackle lifting appliance arranged at the lower end of the lower tackle.

The standby main beam lifting assembly is installed on the horizontal beam of the opening and closing assembly.

Advantageous effects

1. The utility model discloses install respectively on one of them main push-towing rope, do not need the contact each other, do not need synchronous marching when consequently shifting, the security is good.

2. Hoisting accessory adopts the pulley block, lifts by crane power equipment and installs on the cable tower, because the utility model discloses do not have from taking power device, and then do not need to install the tie-beam in order to place power equipment between 2 loop wheel machines, so the utility model discloses the dead weight is light. And the friction force inside and outside the crane is small, and the system is environment-friendly and has good energy-saving effect.

3. The main beam hoisting point is at the end part of the exhibition wing, so that a catwalk can be avoided, and the main beam hung under the exhibition wing is supported on the clamping piece, so that the clamping force of the clamping piece exceeds the dead weight of the main beam by more than 2 times according to the lever principle, and the self-locking effect is achieved.

4. The sling blocks the utility model discloses the solution that advances: in an idle state, moving the main beam hanger rope out of the rope groove of the lower sliding vehicle hanger, and then detaching the main beam hanger; then promote jack work, make the wing rope that opens pull open the exhibition wing to promote the exhibition wing, make end clamping piece, side clamping piece, top clamping piece break away from the main push-towing rope, interior empty being greater than the cable clamp outline, the horizontal beam right-hand member of the subassembly that opens and shuts removes the boiling water flat beam couple along with the exhibition wing left side, and the horizontal beam balancing weight is guaranteed the horizontal beam and is kept the level, rotates the horizontal beam to parallel with the main push-towing rope, the utility model discloses can shift to next segment girder hoist and mount position.

5. The utility model discloses have self-balancing nature, even at no-load state, the focus still can ensure that equipment does not topple at main push-towing rope center.

6. The utility model can be used for various suspension bridge girder erection schemes, and can directly lift the girder for installation on the river channel; under the unable condition that reachs the bridge of girder, can move roof beam system collaborative work with the cable, the utility model discloses after connecting the girder, the cable car can break off and pass from the space of lower carriage hoist and girder hoist with the contact of girder and move away.

7. Enough space is left in the wings to adapt to the situation that the crane is arranged on main cables with different diameters, the crane is changed only by replacing clamping pieces with different radiuses,

the utility model discloses an above-mentioned equipment erects the girder, has numerous advantages such as safe in operation, the dead weight is light, environmental protection, energy-conservation, do not need extra power to hold main push-towing rope tightly, self-balancing, the suitability is good, economic nature is good, bearing capacity is big, and the transport capacity can exceed 400 tons, and equipment fixing and simple to use, convenience.

The technical scheme of the utility model is further explained in the following with the attached drawings.

Drawings

Fig. 1 is a schematic view of the lifting main beam of the present invention.

Fig. 2 is a perspective view of the middle body, the wing of the present invention and an enlarged view of the position a.

Fig. 3 is a schematic diagram of the displacement operating mode of the present invention.

Fig. 4 is a schematic diagram of the short sling area of the present invention.

In the figure, 1, a vehicle body, 101, wheels, 102, a vehicle frame, 103, a wing-spreading lifting frame, 104, a lifting jack, 105, a wing-spreading rope, 1051, an auxiliary rope, 106, a central positioning column, 107, a central positioning block, 2, a wing clamp assembly, 201, a central shaft, 202, a left wing-spreading, 203, a right wing-spreading, 204, a bottom clamping piece, 205, a side clamping piece, 206, a top clamping piece, 3, an opening and closing assembly, 301, a wing-spreading suspension rod, 302, a horizontal beam hook, 3021, a hook hole, 303, a wing-spreading counterweight, 304, a horizontal beam movable suspension block, 305, a horizontal beam, 306, a horizontal beam counterweight, 4, a trolley group, 401, a trolley group rotating beam, 402, an upper main beam, 403, a trolley group steel wire rope, 404, a lower trolley, 405, a lower trolley, 5, a sling, 501, a main beam sling, 502, a main beam sling, 503, a main beam sling, 6, a, 8. The system comprises a walking traction rope, 9 main cables, 10 cable clamps, 11 sling, 12 main beams, 13 rail cable cars and 14 rail cables.

Detailed Description

As shown in fig. 1, the utility model provides a split type cable carries loop wheel machine for setting up suspension bridge girder, including installing automobile body 1 that can follow main push-towing rope 9 and remove on main push-towing rope 9, movable mounting can hold main push-towing rope 9 and open wing clamp subassembly 2 through the elevating gear drive under automobile body 1, hang and can horizontal pivoted by wing clamp subassembly 2 subassembly 3 that opens and shuts, hang 4 of the pulley group on subassembly 3 that opens and shuts, hang girder hoist 5 on 4 of pulley group, the spare lifting unit 6 of girder of mountable on subassembly 3 that opens and shuts.

As shown in fig. 1 and 2, the vehicle body 1 includes front and rear wheels 101 moving along a main cable 9, and a vehicle frame 102 mounted on the front and rear wheels 101, the lifting device includes a wing-spreading lifting frame 103 and a lifting jack 104 mounted on the vehicle frame 102, two central positioning columns 106 mounted in the middle of the vehicle body 1 in a penetrating manner and capable of moving up and down, two central positioning blocks 107 disposed below the vehicle body 1 and respectively fixedly connected to the two central positioning columns 106, and a central shaft 201 disposed below the vehicle body 1 and fixedly connected to the two central positioning blocks 107; the frame 102 is provided with two guide holes, and the two central positioning columns 106 are arranged in the guide holes and constrained by the guide holes to move up and down; the lifting jack 104 of the lifting device is respectively connected with the outer end parts of the left and right wing-spreading 202 and 203 in the wing clamp component 2 through the wing-spreading rope 105 via the pulley on the wing-spreading lifting frame 103, and the inner end parts of the left and right wing-spreading 202 and 203 are connected with the wing-spreading rope 105 through the auxiliary rope 1051.

As shown in fig. 1 and 2, the wing clip assembly 2 includes a central shaft 201 disposed below the vehicle body 1 and fixedly connected to two central positioning blocks 107, a left wing stretcher 202 and a right wing stretcher 203 hinged to the central shaft 201, two bottom clips 204 correspondingly mounted at the bottoms of the left wing stretcher 202 and the right wing stretcher 203, two side clips 205 correspondingly hinged to the two bottom clips 204, and a top clip 206 hinged between the two side clips 205; the two bottom clamping pieces 204, the two side clamping pieces 205 and the top clamping piece 206 form a five-piece clamping piece structure which can tightly hold the main cable 9 and open the main cable, load is pressed on the bottom clamping pieces 204, two ends of the central shaft 201 are respectively inserted into the two central positioning blocks 107, the two opening wing ropes 105 respectively pull the left and right

opening wings

202 and 203, so that the left and right

opening wings

202 and 203 can be opened and closed in a rotating mode around the central shaft 201, after the left and right

opening wings

202 and 203 are opened, the auxiliary ropes 1051 are tightened, and the left and right

opening wings

202 and 203 are lifted to the bottom of the vehicle body together with the opening wing ropes 105.

As shown in fig. 1 and 2, the lifting jack 104 pushes downward to drive the two wing-stretching ropes 105 to pull the left and

right wings

202 and 203 to stretch upward, and drive the bottom clip 204 and the side clips 205 to release the clasping state of the main cable 9; when the lifting jack 104 retracts, the two wing-opening ropes 105 are loosened to enable the left and right wing-

opening pieces

202 and 203 to fold downwards, and the bottom clamping piece 204 and the side clamping pieces 205 are driven to form a holding state for the main cable 9; after the bottom clamping piece 204 and the side clamping piece 205 are opened, the lifting jack 104 continues to jack downwards, the auxiliary rope 1051 is tensioned by the tensioning wing rope 105 to work together, the left and right expanding

wings

202 and 203 can move upwards along with the left and right expanding

wings

202 and 203 after the left and right expanding

wings

202 and 203 are opened under the constraint of the guide hole on the frame 102 through the central positioning column 106, the central point formed by the main cable 9 and the sling 11 moves upwards, the left and right expanding

wings

202 and 203 move upwards along with the left and right expanding

wings

202 and 203 to drive the top clamping piece 206 connected with the left and right expanding wings to be separated from the main cable 9, the left and right expanding

wings

202 and 203 move upwards until reaching the bottom of the frame 102, and the left and right expanding

wings

202 and 203 continue to be opened until enough space is reserved between the inner walls of the bottom clamping piece 204, the side clamping piece 205 and the top clamping piece 206 and the outer contour of the cable clamp 10; the front end of the frame 102 is connected with a traveling hauling rope 8 of a tower top traction winch, the frame 102 moves along a main cable 9 under the pulling of the traveling hauling rope 8, the front wheel 101 and the rear wheel 101 are attached to the top surfaces of the main cable 9 and the backing rail 7 in a dumbbell shape, the wheels 101 move by taking the main cable as a track, and when passing through a cable clamp 10 of a sling 11 on the main cable 9, the wheels can roll on the backing rail 7 covered on the cable clamp 10.

As shown in fig. 1 and 3, the opening and closing assembly 3 includes left and right winged hanging rods 301 installed at the outer ends of the left and right

winged wings

202 and 203, a horizontal beam hook 302 hinged at the lower end of the right winged hanging rod 301, a winged balancing weight 303 installed under the horizontal beam hook 302, a horizontal beam movable hanging block 304 hinged at the lower end of the left winged hanging rod 301, a horizontal beam 305 installed under the horizontal beam movable hanging block 304 in a horizontally rotatable manner, and a horizontal beam balancing weight 306 installed at the left end of the horizontal beam 305, and when the main beam 12 is hoisted, the right end of the horizontal beam 305 rests in a hook hole 3021 of the horizontal beam hook 302 to bear load. The utility model discloses during the aversion, the right-hand member of horizontal beam 305 shifts out to a left side from the hook hole 3021 of horizontal beam couple 302, relies on horizontal beam balancing weight 306 to keep balance, and horizontal beam 305 hangs the piece 304 center along the horizontal beam activity and rotates 90 parallel with main cable 9, can avoid blockking of hoist cable 11. The left and right exhibition wing suspender 301 is symmetrically distributed along the central plane formed by the main cable 9 and the sling 11, the left and right weight is also equal, the left and right exhibition wing suspender 301 is respectively hinged with the left exhibition wing 202 and the right exhibition wing 203 in a single direction, the transverse bridge is rotationally constrained, the treatment can ensure that the gravity center of the crane is below the center of the main cable 9 in each state, and the longitudinal bridge is rotatable to adapt to the inclination angle of the main cable 9 which changes everywhere.

As shown in fig. 1 and 3, the tackle pulley 4 includes a tackle pulley rotating beam 401 mounted on the horizontal beam 305 and located on the right side of the horizontal beam movable hoist block 304, an upper tackle 402 mounted below the tackle pulley rotating beam 401, a lower tackle 404 mounted below the upper tackle 402 and connected by a tackle pulley wire 403, and a lower tackle hanger 405 mounted at the lower end of the lower tackle 404. The utility model discloses during the aversion, horizontal beam 305 rotates 90, and the relative horizontal beam 305 of tackle pulley group swivel beam 401 rotates-90 and keeps motionless to guarantee that tackle pulley group wire rope 403's traction end is facing to the girder of installing on the top of the tower and promotes the hoist engine.

As shown in fig. 1 and 3, the main beam hanger 5 includes a detachable main beam hanger cross beam 502 and a main beam hanger longitudinal beam 503, the main beam hanger 5 is hung under the lower trolley hanger 405 by a left main beam hanger rope 501 and a right main beam hanger rope 501, and a sufficient space is left between the left main beam hanger rope 501 and the right main beam hanger rope 501 to cooperate with the operation of the track cable beam moving system. After girder 12 installed, demolish left and right girder hoist rope 501 from lower sliding hanger 405, demolish girder hoist crossbeam 502 and girder hoist longeron 503 and connect to put aside after hoist cable 11 installs, thereby alleviate the utility model discloses weight when empty load shifts reaches and waits lower festival section installation behind the successor position.

As shown in fig. 1 and 4, the main beam spare lifting assembly 6 mounted on the horizontal beam 305 is installed and activated when lifting the main beam 12 in the short sling area, and is connected to the main beam hanger 5.

When a main beam 12 of a suspension bridge is erected by matching with a track cable beam moving system, a vehicle body 1 of the utility model is moved to an installation position, a main beam hanger 5 is hung on a lower pulley hanger 405 by a main beam hanger rope 501, a track cable car 13 moves along a track cable 14 to transport the main beam 12 to the installation position of a main beam section, the main beam hanger 5 is connected with the main beam 12, a main beam lifting winch at the top of the tower is driven to recover a trolley wire rope 403, the main beam 12 is lifted, the connection between the track cable car 13 and the main beam 12 is removed, the track cable car 13 is removed, a main beam standby lifting component 6 is installed on a horizontal beam 305, the lower end of the main beam standby lifting component is connected with a main beam hanger longitudinal beam 503 of the main beam hanger 5, the main beam 12 is lifted by the main beam standby lifting component 6, then the main beam hanger rope 501 is removed, the connection between the lower pulley hanger 405 and the main beam hanger 5 is disconnected, the lower pulley 404 and the main beam hanger 405 are pulled to a position where the main, slings 11 are attached to the upper main beam 12. This process is also suitable for lifting the main girder 12 from the vessel, except that the lower trolley 404 is lowered with the lower trolley spreader 405 and the main girder spreader 5 above the vessel to lift the main girder 12.

Claims

1. The utility model provides a split type cable carries loop wheel machine for setting up suspension bridge girder, characterized by is including installing the automobile body that can follow the main push-towing rope removal on the main push-towing rope, movable mounting can hold tightly the main push-towing rope and open wing clamp subassembly through elevating gear drive under the automobile body, by the wing clamp subassembly hang and can the horizontal pivoted subassembly that opens and shuts, hang the tackle block on the subassembly that opens and shuts, hang the girder hoist on the tackle block, the spare lifting assembly of girder of mountable on the subassembly that opens and shuts.

2. The split type cable crane according to claim 1, wherein the body comprises front and rear wheels moving along the main cable, a frame mounted on the front and rear wheels, the lifting device comprises a wing-spreading lifting frame and a lifting jack mounted on the frame, two center positioning posts vertically movably mounted on the body, two center positioning blocks respectively fixedly connected to the two center positioning posts and arranged below the body, and a central shaft fixedly connected to the two center positioning blocks and arranged below the body.

3. The split type cable crane for erecting a main girder of a suspension bridge according to claim 2, wherein the wing clamp assembly comprises a left spreading wing and a right spreading wing hinged on the central shaft, two bottom clamping pieces correspondingly mounted at the bottoms of the left spreading wing and the right spreading wing, two side clamping pieces correspondingly hinged on the two bottom clamping pieces, and a top clamping piece hinged between the two side clamping pieces, wherein the two bottom clamping pieces, the two side clamping pieces and the top clamping piece form a surrounding structure capable of tightly holding the main cable and opening; and a lifting jack of the lifting device is respectively connected with the outer end parts of the left and right wing-unfolding in the wing clamp component through a wing-unfolding rope and a pulley on the wing-unfolding lifting frame.

4. The split type cable crane for erecting a main girder of a suspension bridge as claimed in claim 3, wherein the opening and closing assembly comprises left and right winged suspension rods installed at the outer ends of the left and right winged wings, a horizontal beam hook hinged at the lower end of the right winged suspension rod, a winged counter weight installed under the horizontal beam hook, a horizontal beam movable hanging block hinged at the lower end of the left winged suspension rod, a horizontal beam installed under the horizontal beam movable hanging block in a horizontally rotatable manner, and a horizontal beam counter weight installed at the left end of the horizontal beam.

5. The split type cable crane for erecting the main girder of the suspension bridge as claimed in claim 4, wherein the tackle set comprises a tackle set rotating beam installed on the horizontal beam and located on the right side of the horizontal beam movable hanging block, an upper tackle installed below the tackle set rotating beam, a lower tackle installed below the upper tackle and connected through a tackle set steel wire rope, and a lower tackle hanger installed at the lower end of the lower tackle.

6. The split type cable crane according to claim 4 or 5, wherein the main girder backup lifting assembly is installed on the horizontal beam of the opening and closing assembly.