CN212315387U

CN212315387U - Bridge floor crane

Info

Publication number: CN212315387U
Application number: CN202020232733.9U
Authority: CN
Inventors: 邓啟飞; 谭品
Original assignee: Foshan Yueyouchuang Steel Structure Co ltd
Current assignee: Foshan Yueyouchuang Steel Structure Co ltd
Priority date: 2020-02-28
Filing date: 2020-02-28
Publication date: 2021-01-08
Anticipated expiration: 2030-02-28

Abstract

The utility model provides a bridge floor loop wheel machine, bridge floor loop wheel machine includes the frame, the fixed pulley, the movable pulley, traction drive and rigging, the fixed pulley rotationally sets up in frame top one end, the movable pulley sets up under the fixed pulley, traction drive sets up with the other end interval predetermined distance of frame, traction drive has the haulage rope, the haulage rope is around locating fixed pulley and movable pulley on, the elevating movement who drives fixed pulley and movable pulley rotation and realize the movable pulley through receiving and releasing of haulage rope, when the movable pulley rises to holding with the fixed pulley counterbalance, thereby the haulage rope is held by the card and is driven the frame and slide, the rigging sets up on the pulley seat of movable pulley. The utility model discloses the bridge floor loop wheel machine can realize being hung the elevating movement of thing and the slip of frame through traction drive device, compares with prior art, so design simple structure, and is easy and simple to handle, and manufacturing cost is lower. Use the utility model discloses easy and simple to handle when bridge crane breaks bridge, effectively shorten the dismantlement time limit for a project.

Description

Bridge floor crane

Technical Field

The utility model relates to a bridge floor crane.

Background

CN201810522320.1 discloses a rotatable bridge deck crane for assembling steel box girders, CN201910640077.8 discloses a central double-cable-plane cable-stayed bridge cable-passing bridge deck crane and a construction method thereof, CN201810311489.2 discloses a central cable-plane steel box girder integral bridge deck crane, and CN201220339990.8 discloses a novel bridge deck crane. The bridge deck crane of the above four patent application documents has a common feature that: two sets of power devices are required to work, one set of power device is arranged at the top of the truss and used for lifting heavy objects, and the other set of power device is arranged at the bottom of the truss and used for driving the crane to walk. Thus, the design structure is complex and the manufacturing cost is high. Therefore, it is necessary to design a new bridge deck crane to solve the existing problems.

SUMMERY OF THE UTILITY MODEL

In view of the above, in order to meet the market demand, the present invention needs to provide a bridge crane with simple structure and low manufacturing cost.

The utility model adopts the technical proposal that:

a bridge floor crane comprises a frame, a fixed pulley, a movable pulley, a traction driving device and a rigging, wherein the fixed pulley is rotatably arranged at one end of the top of the frame, the movable pulley is arranged under the fixed pulley, the traction driving device is arranged at a preset distance from the other end of the frame, the traction driving device is provided with a traction rope, the traction rope is wound on the fixed pulley and the movable pulley, the fixed pulley and the movable pulley are driven to rotate through retraction and release of the traction rope so as to realize the lifting motion of the movable pulley, when the movable pulley rises to abut against the fixed pulley, the traction rope is clamped by the clamp so as to drive the frame to slide, and the rigging is arranged on a pulley seat of the movable pulley.

Furthermore, the traction rope is arranged on the fixed pulley and the movable pulley in a winding way after penetrating through the guide piece.

Furthermore, the guide piece adopts a guide wheel, and a guide groove matched with the traction rope is formed on the periphery of the guide wheel.

Further, the frame includes the underframe frame, the top frame, first bracing piece, second bracing piece and diagonal draw bar, the width of underframe frame is greater than the width of top frame, the length of underframe frame is equivalent with the length of top frame, the top frame is located the oblique top of underframe frame, underframe frame one end both sides are respectively through first bracing piece and top frame one end both sides fixed connection, underframe frame other end both sides are articulated with top frame other end both sides through diagonal draw bar respectively, form the bottom wide, the narrow terrace with edge structure in top, the one end both sides that are fixed with first bracing piece on the underframe frame are fixed with the one end both sides fixed connection of diagonal draw bar through second bracing piece and top frame, relative both sides and first bracing piece between underframe frame and the top frame, second bracing piece and diagonal draw bar cooperation form two triangle-shaped structures.

Further, the fixed pulley is rotatably arranged at one end of the top frame, which is fixed with the first supporting rod.

Further, the guide member is arranged on the bottom frame and located between the two second support rods which are oppositely arranged.

Furthermore, the fixed pulleys and the movable pulleys are correspondingly arranged in multiple groups up and down.

Further, the traction driving device adopts a winch.

Further, the rigging employs shackles, such as hooks, tensioners, clenches or collars.

The utility model discloses the bridge floor loop wheel machine cooperatees through setting up frame, fixed pulley, movable pulley, traction drive and rigging, through will traction drive with frame interval predetermined distance setting, traction drive's haulage rope can drive fixed pulley and movable pulley rotation and realize the elevating movement of movable pulley, through setting up the rigging on the pulley seat of movable pulley, is convenient for fix mutually with the rope of being hung the thing to it goes up and down to drive to be hung the thing. When the movable pulley rises to abut against the fixed pulley, the traction rope is clamped to drive the rack to slide. The lifting movement of the hoisted object and the sliding of the rack can be realized through the traction driving device, and compared with the prior art, the lifting device has the advantages of simple design structure, simple and convenient operation and lower manufacturing cost.

Use the utility model discloses when bridge crane breaks bridge, along with dismantling the in-process bridge body and shorten gradually, traction drive can be used for driving the case roof beam decline, can be used for driving the frame again and slide along the bridge floor, and is easy and simple to handle, effectively shortens the dismantlement time limit for a project.

The preferred embodiments of the present invention and their advantageous effects will be described in further detail with reference to specific embodiments.

Drawings

The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention and not to limit the invention. In the drawings, there is shown in the drawings,

FIG. 1: the overall structure of the bridge deck crane of the utility model is schematically shown in the front view;

FIG. 2: the side view of the local structure of the bridge deck crane of the utility model is a schematic diagram;

FIG. 3: the utility model discloses the bridge floor loop wheel machine is installed in the user state picture of bridge floor.

Detailed Description

The following detailed description of the embodiments of the present invention will be made with reference to the accompanying drawings. It is to be understood that the description of the embodiments herein is for purposes of illustration and explanation only and is not intended to limit the invention.

Please refer to fig. 1 and 2, a preferred embodiment of the present invention provides a bridge deck crane, which comprises a frame 1, a fixed pulley 2, a movable pulley 3, a traction driving device 4, a guiding element 5 and a rigging 6, wherein the fixed pulley 2 is rotatably disposed at one end of the top of the frame 1, the movable pulley 3 is disposed under the fixed pulley 2, the traction driving device 4 is disposed at a predetermined distance from the other end of the frame 1, the guiding element 5 is disposed at the bottom of the frame 1, the traction driving device 4 has a traction rope 41, the traction rope 41 passes through the guiding element 5 and is wound on the fixed pulley 2 and the movable pulley 3, and the fixed pulley 2 and the movable pulley 3 are driven to rotate to realize the lifting movement of the movable pulley 3 by the retraction of the traction rope 41. When the movable pulley 3 ascends to abut against the fixed pulley 2, the traction rope 41 is clamped to drive the frame 1 to slide. The rigging 6 is provided on the pulley holder of the movable pulley 3 and is used for locking a rope bound to an object to be lifted. Set up in frame 1 bottom through guide 5, can guide haulage rope 41 to frame 1 bottom for haulage rope 41 acts on the pulling force direction slope of frame 1 upwards, can reduce frame 1 and the frictional force on ground at the slip in-process, is favorable to the gliding stability of frame 1. It is understood that the guide 5 may be omitted and the traction rope 41 of the traction drive 4 is directly wound around the fixed sheave 2 and the movable sheave 3.

The utility model discloses the bridge floor loop wheel machine is through setting up frame 1, fixed pulley 2, movable pulley 3, traction drive 4 and rigging 6 and cooperate, through will traction drive 4 and 1 interval predetermined distance setting in frame, traction drive 4's haulage rope 41 can drive fixed pulley 2 and movable pulley 3 and rotate and realize movable pulley 3's elevating movement, through setting up rigging 6 on movable pulley 3's pulley holder, be convenient for and the rope of being hung the thing is fixed mutually to it goes up and down to drive the thing of being hung. When the movable pulley 3 ascends to abut against the fixed pulley 2, the traction rope 41 is clamped to drive the frame 1 to slide. The lifting movement of the hoisted object and the sliding of the frame 1 can be realized through the traction driving device 4, and compared with the prior art, the design has the advantages of simple structure, simple and convenient operation and lower manufacturing cost.

The frame 1 comprises a bottom frame 11, a top frame 12 and a first supporting rod 13, the width of the bottom frame 11 is greater than that of the top frame 12, the length of the bottom frame 11 is equal to that of the top frame 12, the top frame 12 is located above the bottom frame 11, two sides of one end of the bottom frame 11 are fixedly connected with two sides of one end of the top frame 12 through the first support rods 13 respectively, two sides of the other end of the bottom frame 11 are hinged with two sides of the other end of the top frame 12 through the diagonal draw bars 15 respectively to form a frustum structure with a wide bottom and a narrow top, two sides of one end of the bottom frame 11, which is fixed with the first support rods 13, are fixedly connected with two sides of one end of the diagonal draw bars 15 through the second support rods 14 and the top frame 12, and two opposite sides between the bottom frame 11 and the top frame 12 are matched with the first support rods 13, the second support rods 14 and the diagonal draw bars 15 to form two triangular structures. The fixed pulley 2 is rotatably provided at one end of the top frame 12 to which the first support rod 13 is fixed. The guide 5 is disposed on the bottom frame 11 and between two second support rods 14 disposed oppositely. The frame 1 is designed in such a way that the structure is simple and the supporting stability is good. In order to further enhance the stability of the support, a reinforcing rod 16 is fixedly connected between the two first support rods 13 which are oppositely arranged. Preferably, the first support bar 13, the second support bar 14 and the diagonal draw bar 15 are detachably connected to the bottom frame 11 and the top frame 12 through bolts, so as to facilitate detachment and transportation and reduce the occupied space.

The frame 1 is provided with an anchoring structure 7 for fixing the frame 1 on a supporting surface, so that the frame 1 is prevented from toppling over due to overlarge stress on the inclined extending end at the top of the frame 1 in the hoisting process. The anchor structure 7 is disposed on the bottom frame 11, and the specific structure of the anchor structure 7 is well known to those skilled in the art and will not be described herein again.

The fixed pulley 2 and the movable pulley 3 can be correspondingly arranged in a plurality of groups up and down to play a role of saving power.

In this embodiment, the traction drive 4 is a hoist disclosed in the related art.

In this embodiment, the guide member 5 is a guide wheel, and a guide groove engaged with the traction rope 41 is formed on the outer periphery of the guide wheel.

In this embodiment, the rigging 6 is a shackle, but is not limited thereto, and may be a hook, a tensioner, a cable clamp, a loop, or the like.

Referring to fig. 3, the bridge deck crane of the present invention is well adapted to the bridge dismantling construction, and therefore, the present invention also provides a method for using the above bridge deck crane to dismantle a bridge, wherein the bridge body is formed by splicing a plurality of sections of box girders 8, the frame 1 and the traction driving device 4 are fixed on the bridge deck at a predetermined distance, the box girders 8 to be dismantled are bound and fixed by ropes and then hung on the rigging 6, the box girders 8 are dismantled, the traction ropes 41 of the traction driving device 4 are lowered to drive the fixed pulleys 2 and the movable pulleys 3 to rotate so as to lower the box girders 8 to the barge on the river surface, the ropes are taken down from the box girders 8, the frame 1 and the bridge deck are released from being fixed so that the frame 1 can slide relative to the bridge deck, the traction ropes 41 of the traction driving device 4 drive the fixed pulleys 2 and the movable pulleys 3 to rotate so as to lift the ropes hung on the rigging 6, when the movable pulley 3 rises to abut against the fixed pulley 2, the traction rope 41 is clamped to drive the frame 1 to slide to the next hoisting position towards one end of the traction driving device 4, then the frame 1 is fixed on the bridge floor, the box girder 8 to be disassembled is bound and fixed through the rope and then is suspended on the rigging 6, the corresponding steps are continuously circulated, and multiple times of hoisting operation are executed. Use the utility model discloses when bridge crane breaks the bridge, along with dismantling the in-process bridge body and shorten gradually, traction drive 4 can be used for driving box girder 8 and descend, can be used for driving frame 1 again and slide along the bridge floor, and is easy and simple to handle, effectively shortens the dismantlement time limit for a project.

As long as the idea created by the present invention is not violated, various different embodiments of the present invention can be arbitrarily combined, and all the embodiments should be regarded as the content disclosed by the present invention; the utility model discloses an in the technical conception scope, carry out multiple simple variant and different embodiments to technical scheme and go on not violating the utility model discloses the arbitrary combination of the thought of creation all should be within the protection scope.

Claims

1. The utility model provides a bridge floor loop wheel machine, includes frame (1), traction drive (4) and rigging (6), its characterized in that: the movable pulley traction device is characterized by further comprising a fixed pulley (2) and a movable pulley (3), the fixed pulley (2) is rotatably arranged at one end of the top of the rack (1), the movable pulley (3) is arranged under the fixed pulley (2), the traction driving device (4) and the other end of the rack (1) are arranged at a preset distance, the traction driving device (4) is provided with a traction rope (41), the traction rope (41) is wound on the fixed pulley (2) and the movable pulley (3), the fixed pulley (2) and the movable pulley (3) are driven to rotate through retraction and release of the traction rope (41) to realize lifting movement of the movable pulley (3), when the movable pulley (3) rises to abut against the fixed pulley (2), the traction rope (41) is held to drive the rack (1) to slide, and the rigging (6) is arranged on a pulley seat of the movable pulley (3).

2. A bridge deck crane according to claim 1, wherein: the traction rope is characterized by further comprising a guide piece (5) arranged at the bottom of the rack (1), and the traction rope (41) penetrates through the guide piece (5) and is wound on the fixed pulley (2) and the movable pulley (3).

3. A bridge deck crane according to claim 2, wherein: the guide piece (5) adopts a guide wheel, and a guide groove matched with the traction rope (41) is formed on the periphery of the guide wheel.

4. A bridge deck crane according to claim 2, wherein: the rack (1) comprises a bottom frame (11), a top frame (12), a first supporting rod (13), a second supporting rod (14) and diagonal pulling rods (15), wherein the width of the bottom frame (11) is larger than that of the top frame (12), the length of the bottom frame (11) is equivalent to that of the top frame (12), the top frame (12) is positioned above the bottom frame (11) in an inclined manner, two sides of one end of the bottom frame (11) are fixedly connected with two sides of one end of the top frame (12) through the first supporting rod (13), two sides of the other end of the bottom frame (11) are hinged with two sides of the other end of the top frame (12) through the diagonal pulling rods (15) respectively to form a prismatic table structure with wide bottom and narrow top, two sides of one end, which is fixedly provided with the first supporting rod (13), of the bottom frame (11) are fixedly connected with two sides of one end, which is fixedly provided with the diagonal pulling rods (15), of the top frame, the two opposite sides between the bottom frame (11) and the top frame (12) are matched with the first supporting rod (13), the second supporting rod (14) and the diagonal draw bar (15) to form two triangular structures.

5. A bridge deck crane according to claim 4, wherein: the fixed pulley (2) is rotatably arranged at one end of the top frame (12) fixed with a first supporting rod (13).

6. A bridge deck crane according to claim 4, wherein: the guide piece (5) is arranged on the bottom frame (11) and is positioned between two second support rods (14) which are oppositely arranged.

7. A bridge deck crane according to claim 1, wherein: the fixed pulley (2) and the movable pulley (3) are correspondingly arranged in groups up and down.

8. A bridge deck crane according to claim 1, wherein: the traction driving device (4) adopts a winch.

9. A bridge deck crane according to claim 1, wherein: the rigging (6) employs shackles, such as hooks, tensioners, clenchers or collars.