CN120945805B - Crane for bridge deck construction and construction method thereof - Google Patents
Crane for bridge deck construction and construction method thereofInfo
- Publication number
- CN120945805B CN120945805B CN202511483934.XA CN202511483934A CN120945805B CN 120945805 B CN120945805 B CN 120945805B CN 202511483934 A CN202511483934 A CN 202511483934A CN 120945805 B CN120945805 B CN 120945805B
- Authority
- CN
- China
- Prior art keywords
- positioning
- rod
- sleeve
- box girder
- steel box
- 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.)
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Classifications
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D21/00—Methods or apparatus specially adapted for erecting or assembling bridges
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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
- B66C13/00—Other constructional features or details
- B66C13/04—Auxiliary devices for controlling movements of suspended loads, or preventing cable slack
- B66C13/08—Auxiliary devices for controlling movements of suspended loads, or preventing cable slack for depositing loads in desired attitudes or positions
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Bridges Or Land Bridges (AREA)
Abstract
The invention relates to the technical field of bridge deck cranes, and particularly discloses a crane for bridge deck construction and a construction method thereof, wherein the crane comprises a crane body and a lifting appliance, and a positioning assembly is arranged on the crane body and comprises a positioning rod horizontally assembled on the crane body in a sliding manner, a pushing piece connected with the positioning rod, a plurality of positioning plates assembled on the side surfaces of the positioning rod in a sliding manner and a driving piece connected with the positioning plates; the lifting appliance comprises a connecting part, and a positioning groove is formed in the connecting part; after the connecting part and the locating rod are positioned at the same height, the connecting part is moved by the lifting appliance so as to insert the locating rod into the locating groove, then the driving part drives the locating plates to move to be abutted against the inner wall of the locating groove so as to locate the steel box girder section, and then the pushing part drives the steel box girder section to be close to the steel box girder body through the locating rod and the connecting part.
Description
Technical Field
The invention relates to the technical field of bridge deck cranes, in particular to a crane for bridge deck construction and a construction method thereof.
Background
In bridge construction, the structures of steel box girders, precast girder segments, main girders of cable-stayed bridges, etc. generally need to splice multiple parts, wherein a crane is an important device in bridge deck construction, which is mainly used for hoisting heavy components to a designated position for subsequent installation.
The patent document with the bulletin number of CN212315387U discloses a bridge deck crane, the bridge deck 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 winding and unwinding of the traction rope to realize lifting movement of the movable pulley, and when the movable pulley is lifted to prop against the fixed pulley, the traction rope is clamped to drive the frame to slide, and the rigging is arranged on a pulley seat of the movable pulley.
Through setting up frame, fixed pulley, movable pulley, traction drive device and rigging and cooperate, through setting up traction drive device and frame interval predetermined distance, traction drive device's haulage rope can drive fixed pulley and movable pulley and rotate and realize the elevating movement of movable pulley, through setting up the rigging on the pulley seat of movable pulley, realize fixed mutually with the rope of being hung the thing to drive and hang the thing and go up and down. When the movable pulley rises to prop against the fixed pulley, the traction rope is clamped so as to drive the rack to slide. The lifting movement of the suspended object and the sliding of the frame are realized through the traction driving device.
But this scheme still has following problem, when carrying out hoist and mount construction to steel case roof beam, need splice a plurality of steel case roof beams one by one, and need carry out accurate location at the concatenation in-process. Specifically, the traction driving device lifts the steel box girder to a designated position through traction ropes and rigging, and then the steel box girder is installed and fixed after being positioned. However, due to the action of a traction rope or external wind force, when the steel box girder is lifted and then moves in the vertical or horizontal direction, the phenomenon of shaking is unavoidable, so that the steel box girder is inconvenient to position and the assembly construction efficiency is affected.
Disclosure of Invention
The invention provides a crane for bridge deck construction and a construction method thereof, and aims to solve the problem that assembly is affected easily due to shaking when a steel box girder is hoisted in the prior art.
The invention provides a crane for bridge deck construction, which comprises a crane body positioned above a steel box girder body, wherein the crane body comprises a lifting tool used for lifting a steel box girder section, a positioning assembly is arranged on the crane body and comprises a positioning rod horizontally assembled on the crane body in a sliding manner, a pushing piece connected with the positioning rod, a plurality of positioning plates slidingly assembled on the side surface of the positioning rod and a driving piece connected with the positioning plates, the lifting tool comprises a connecting part, a positioning groove for inserting the positioning rod is horizontally formed in the connecting part towards the positioning rod, after the connecting part and the positioning rod are positioned at the same height, the connecting part is moved through the lifting tool to insert the positioning rod into the positioning groove, then the driving piece drives the positioning plates to be in abutting connection with the inner wall of the positioning groove, so that the central lines of the positioning rod and the positioning groove are positioned on the same straight line, and then the pushing piece drives the steel box girder section to be close to the steel box girder body through the positioning rod and the connecting part.
The steel box girder supporting and positioning device has the advantages that the positioning rods and the positioning plates are matched with the connecting parts, so that the steel box girder segments are supported and positioned in an auxiliary mode, and negative influences caused by shaking are eliminated. Specifically, after connecting portion moves to with the locating lever at same height, the loop wheel machine body drives connecting portion and removes and be close to the locating lever for in the locating lever inserts the constant head tank, then the driving piece drives the locating plate and removes and be close to the constant head tank lateral wall, after a plurality of locating plates all with constant head tank inner wall butt, the central line of constant head tank is located same straight line with the central line of locating lever, and then realize the support of locating lever to connecting portion, make the steel case girder section more stable, avoid it to appear rocking the phenomenon, a plurality of locating plates and constant head tank inner wall butt simultaneously, make steel case girder section and steel case girder body align in the horizontal direction, so that after the impeller drives steel case girder section and removes to align with steel case girder body, fix a position it, promote follow-up assembly efficiency.
Preferably, the crane body is provided with a positioning sleeve, the positioning rod is slidably assembled in the positioning sleeve, the end part of the positioning sleeve is flush with the steel box girder body in the vertical direction, the positioning rod is provided with a baffle plate, and after the positioning rod is inserted into the positioning groove, the distance between the baffle plate and the positioning sleeve is the same as the distance between the steel box girder body and the steel box girder section.
The positioning device has the advantages that after the positioning rod is completely inserted into the positioning groove, the distance between the baffle and the positioning sleeve is the same as the distance between the steel box girder section and the steel box girder body, and when the pushing piece drives the positioning rod to move, the baffle and the positioning sleeve are abutted and then stopped to move, so that the moving distance of the positioning rod can be judged.
Preferably, the spout that is used for installing the locating plate has been seted up to the locating lever side, and the locating plate includes horizontal plate and vertical board, and horizontal plate and vertical board all are provided with two sets of, and the horizontal plate is provided with two and is located the horizontal both sides of locating lever respectively, and vertical board is provided with two and is located the upper and lower both sides of locating lever respectively, and the horizontal plate slides along the horizontal direction on the locating lever, and vertical board slides along vertical direction on the locating lever.
The horizontal plate corrects the connecting part in the horizontal direction, and the vertical plate corrects the connecting part in the vertical direction.
Preferably, the driving piece comprises a first motor, a second motor, an inner rod rotatably assembled in the positioning rod and a sleeve rod rotatably sleeved outside the inner rod, wherein the output end of the first motor is connected with the inner rod, the output end of the second motor is connected with the sleeve rod, the first motor drives the inner rod to rotate and controls the horizontal plate to move, and the second motor drives the sleeve rod to rotate and controls the vertical plate to move.
The sleeve rod is provided with a first sleeve block and a second sleeve block in a sliding manner, a first sleeve block is arranged on the outer portion of the sleeve rod in a sliding manner, a first sliding block is arranged on the vertical plate in a sliding manner along the length direction of the sleeve rod, a first connecting rod is arranged between the first sleeve block and the second sleeve block in a sliding manner, a second inner block is arranged on the outer portion of the inner rod in a sliding manner, a second threaded groove is arranged on the outer portion of the inner rod in a sliding manner, the second sliding block is arranged on the horizontal plate in a sliding manner along the length direction of the inner rod, a second sliding block is arranged between the second inner block and the first inner block, and a second connecting rod is arranged between the first inner block and the second sliding block in a sliding manner.
The inner rod has the advantages that the inner rod rotates to drive the inner block II to move close to the inner block I, the inner block I moves to drive the connecting rod II to rotate, the connecting rod II rotates to push the horizontal plate to move, and then the position of the horizontal plate is adjusted. The same, the loop bar drives the second sleeve block to move close to the first sleeve block, and the connecting rod drives the vertical plate to move, so that the position of the vertical plate is adjusted, and the connecting part is adjusted in the horizontal direction and the vertical direction respectively.
Preferably, the first sleeve block and the second sleeve block are arranged between the first inner block and the second inner block, and the rotating surface of the first connecting rod is perpendicular to the rotating surface of the second connecting rod.
The device has the advantages that the phenomenon that the first connecting rod and the second connecting rod interfere with each other is avoided, and the stability of the multiple structures during operation is ensured.
Preferably, the horizontal plate comprises a bearing part which is assembled in the chute in a sliding way and an abutting part which is assembled in the bearing part in a sliding way up and down, wherein a yielding groove is formed in one side of the bearing part, which is close to the abutting part, an intermediate plate is arranged on one side of the abutting part, which is close to the bearing part, and an elastic piece which is connected with the inner wall of the yielding groove is arranged on the intermediate plate, and the abutting part completely moves to the outside of the chute when abutting with the side wall of the positioning groove.
Preferably, two groups of guide plates are arranged on the inner wall of the positioning groove at intervals, the two groups of guide plates correspond to the two horizontal sides of the positioning rod respectively, each group of two guide plates are arranged along the length direction of the positioning rod at intervals, the gap between the two guide plates corresponds to the horizontal plate, the sides, close to each other, of the two guide plates are provided with guide inclined planes, and the horizontal plate moves between the two guide plates through the guide inclined planes.
Preferably, a first telescopic rod for connecting the two vertical plates is arranged between the two vertical plates, and a second telescopic rod for connecting the two horizontal plates is arranged between the two horizontal plates.
In a second aspect, the invention provides a bridge deck construction method, which adopts the crane for bridge deck construction, and comprises the following steps:
moving the crane body so that the end part of the positioning sleeve is flush with the end part of the steel box girder in the vertical direction;
Connecting a lifting appliance with the steel box girder section, lifting the steel box girder section by the crane body to move upwards, and driving the connecting part to approach the positioning rod after the connecting part moves to the same height as the positioning rod until the positioning rod is inserted into the positioning groove;
the driving piece drives the positioning plate to move to be matched with the inner wall of the positioning groove;
The pushing piece drives the positioning rod to move, meanwhile, the crane body drives the connecting part and the positioning rod to synchronously move, and after the baffle plate is abutted with the positioning sleeve, the positioning rod and the connecting part stop moving to assemble the steel box girder section.
The steel box girder connecting device has the advantages that before the steel box girder section is matched with the steel box girder body, the locating rod is matched with the locating groove on the connecting part, and under the auxiliary effect of the locating rod, the influence of shaking of the steel wire rope is eliminated, so that subsequent locating is conducted, and the assembly efficiency is improved.
The beneficial effects are that:
According to the invention, the positioning rod is matched with the positioning groove on the connecting part, after the positioning rod is inserted into the positioning groove, the positioning plates are moved to be abutted against the positioning groove in a plurality of directions, so that the center line of the positioning groove and the center line of the positioning rod are on the same straight line, the connecting part is supported by the positioning plates, and the positions of the steel box girder sections are corrected while shaking of the steel box girder sections is reduced, so that subsequent assembly is performed, and the assembly efficiency is improved.
Drawings
Fig. 1 is a schematic view of the overall structure of the present invention.
Fig. 2 is a schematic view of a partial structure in the present invention.
FIG. 3 is a schematic view of the structure of the positioning sleeve and the baffle plate in the invention.
Fig. 4 is a schematic view of a partial explosion of the positioning rod and the connecting part in the invention.
FIG. 5 is a schematic diagram showing the cooperation of the positioning rod and the positioning groove in the present invention.
Fig. 6 is a schematic view of the internal structure of the positioning rod in the present invention.
Fig. 7 is a schematic diagram of the structure at a in fig. 6.
Fig. 8 is a schematic diagram of the structure at B in fig. 6.
Fig. 9 is a schematic structural view of the positioning plate in the present invention.
Fig. 10 is a schematic view of the structure of the inner rod and the loop bar of the present invention.
FIG. 11 is a cross-sectional view of a water plate in the present invention.
Fig. 12 is a cross-sectional view of section A-A of fig. 11.
Reference numerals:
01. Steel box girder body, 02, steel box girder section, 1, crane body, 11, lifting appliance, 12, steel wire rope, 2, positioning rod, 21, chute, 3, pushing piece, 4, positioning plate, 41, horizontal plate, 411, sliding block two, 412, bearing part, 413, abutting part, 414, yielding groove, 415, middle plate, 416, elastic piece, 42, vertical plate, 421, sliding block one, 422, sliding rail, 5, driving piece, 51, motor one, 52, motor two, 53, inner rod, 531, threaded groove two, 54, sleeve rod, 541, threaded groove one, 6, connecting part, 61, lifting hook, 62, positioning groove, 7, positioning sleeve, 71, baffle plate, 72, linkage rod, 73, driving rod one, 74, driving rod two, 75, bevel gear group one, 76, bevel gear group two, 8, inner block one, 82, inner block two, 83, connecting rod two, 84, sleeve block one, 85, sleeve block two, 86, connecting rod one, 9, guide plate one, 91, 92, telescopic rod two.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings. The embodiments described below by referring to the drawings are illustrative and intended to explain the present invention and should not be construed as limiting the invention.
The invention discloses a crane for bridge deck construction.
Referring to fig. 1 to 12, a crane for bridge deck construction includes a hanger 11 mounted on a crane body 1, the hanger 11 is connected with the crane body 1 through a wire rope 12, the crane body 1 is located above a steel box girder body 01, the hanger 11 is used for hoisting a steel box girder section 02, wherein the steel box girder body 01 is formed by splicing a plurality of steel box girder sections 02. After the lifting appliance 11 is connected with the steel box girder section 02, the crane body 1 drives the lifting appliance 11 and the steel box girder section 02 to move upwards to be positioned at the same height as the steel box girder body 01 through the steel wire rope 12, then the steel box girder section 02 is horizontally moved to be close to the steel box girder body 01, and finally the steel box girder section 02 and the steel box girder body 01 are fixed.
The crane body 1 is provided with a positioning assembly, and when the steel box girder section 02 approaches the steel box girder body 01, the steel box girder section 02 is positioned by the positioning assembly, so that the end parts of the steel box girder section 02 and the steel box girder body 01 are aligned for subsequent assembly.
Referring to fig. 2, 3 and 4, the positioning assembly comprises a positioning rod 2, a pushing member 3, a positioning plate 4 and a driving member 5, wherein the positioning rod 2 horizontally slides on the crane body 1, the pushing member 3 is arranged as an air cylinder, the output end of the pushing member 3 is connected with the positioning rod 2 so as to drive the positioning rod 2 to move on the crane body 1, the positioning plate 4 is arranged on a plurality of sides of the positioning rod 2, the positioning plates 4 are slidably assembled on the positioning rod 2, and the driving member 5 is connected with the positioning plate 4 so as to drive the positioning plate 4 to slide relative to the positioning rod 2.
Referring to fig. 1 and 2, the hanger 11 includes a connecting portion 6 and two hooks 61 located at the bottom of the connecting portion 6, the connecting portion 6 is disposed along the length direction of the steel box girder section 02, a positioning groove 62 is formed at one end of the connecting portion 6 near the positioning rod 2, and the positioning groove 62 is disposed along the horizontal direction. The positioning groove 62 is used for inserting the positioning rod 2, and after the positioning rod 2 is inserted into the positioning groove 62, a gap is reserved between the positioning rod 2 and the positioning groove 62, so that the positioning rod 2 can be inserted into the positioning groove 62 when the connecting part 6 is close to the positioning rod 2.
Initially, the locating plate 4 is flush with the side surface of the locating rod 2, the locating plate 4 is in a retracted state, after the crane body 1 drives the steel box girder section 02 to move upwards to be at the same height as the steel box girder body 01, the connecting part 6 and the locating rod 2 are also at the same height, the steel box girder section 02 is driven to move close to the steel box girder body 01, and the locating rod 2 is gradually inserted into the locating groove 62. Then the driving piece 5 drives the locating plate 4 to move away from the locating rod 2 and gradually unfold, the driving piece 5 drives the locating plate 4 to be abutted with the inner wall of the locating groove 62, after a plurality of locating plates 4 are abutted with the inner wall of the locating groove 62, the center line of the locating rod 2 and the center line of the locating groove 62 are positioned on the same straight line, so that the steel box girder section 02 and the steel box girder body 01 are aligned in the horizontal direction, and meanwhile, the locating rod 2 can support the steel box girder section 02 through the locating plate 4, so that the shaking phenomenon of the steel box girder section 02 is reduced, and the unstable phenomenon of the steel wire rope 12 during hoisting is eliminated. And finally, the pushing piece 3 drives the positioning rod 2 to move close to the steel box girder body 01, and the crane body 1 simultaneously drives the connecting part 6 to move until the steel box girder section 02 abuts against the steel box girder body 01 so as to carry out subsequent installation.
Referring to fig. 1,2 and 3, a positioning sleeve 7 is provided on a crane body 1, a positioning rod 2 is slidably fitted in the positioning sleeve 7, and a baffle 71 is provided on the positioning rod 2. At the time of construction, the crane body 1 is moved so that the front end of the positioning sleeve 7 is flush with the end of the steel box girder 01 in the vertical direction. After the positioning rod 2 is completely inserted into the positioning groove 62, the distance between the baffle 71 and the positioning sleeve 7 is the same as the distance between the steel box girder end and the steel box girder body 01. The pushing piece 3 drives the positioning rod 2 to move, after the baffle 71 is abutted with the end part of the positioning sleeve 7, the steel box girder section 02 is abutted with the steel box girder body 01, and the positioning rod 2 stops moving, so that the moving distance of the positioning rod 2 is judged.
Referring to fig. 2, 3 and 4, two groups of connecting parts 6 are arranged in parallel, and the two connecting parts 6 are connected with a plurality of positions on the steel box girder section 02 so as to ensure the stability of the steel box girder section 02 during hoisting. Two positioning rods 2 and two connecting parts 6 are correspondingly arranged, and the two positioning rods 2 are arranged in parallel. A linkage rod 72 is provided between the two positioning rods 2, and an output end of the pushing member 3 is connected to the linkage rod 72. When the lifting appliance 11 drives the connecting parts 6 to horizontally move, the two groups of positioning rods 2 are respectively inserted into the two connecting parts 6 to assist in positioning the steel box girder section 02.
Referring to fig. 4, a plurality of sliding grooves 21 are formed in a side surface of the positioning rod 2, and the sliding grooves 21 are formed in the upper and lower sides and the left and right sides of the positioning rod 2.
Referring to fig. 5 and 9, the positioning plate 4 comprises two groups of horizontal plates 41 and vertical plates 42, wherein each group of horizontal plates 41 and each group of vertical plates 42 are arranged, each two horizontal plates 41 are respectively positioned on two horizontal sides of the positioning rod 2, each two vertical plates 42 are respectively arranged on two upper sides and two lower sides of the positioning rod 2, the horizontal plates 41 and the vertical plates 42 are both assembled in the sliding groove 21 in a sliding way, namely, the horizontal plates 41 slide in the sliding groove 21 along the horizontal direction, and the vertical plates 42 slide in the sliding groove 21 along the vertical direction.
The driving piece 5 drives the horizontal plates 41 and the vertical plates 42 to slide successively to be abutted with the inner wall of the positioning groove 62, after the two horizontal plates 41 are abutted with the inner wall of the positioning groove 62, the steel box girder section 02 is driven to be aligned with the steel box girder body 01 in the horizontal direction, and after the two vertical plates 42 are abutted with the inner wall of the positioning groove 62, the steel box girder section 02 is driven to be aligned with the steel box girder body 01 in the vertical direction.
In order to facilitate the alignment of the steel box girder segment 02 with the steel box girder body 01 in the vertical direction, when the steel box girder segment 02 is hoisted, the height of the steel box girder segment 02 is slightly lower than that of the steel box girder body 01, and in the process that the vertical plates 42 are abutted with the positioning grooves 62, the height of the connecting part 6 is properly lifted, so that the two vertical plates 42 are abutted with the inner walls of the positioning grooves 62, and the steel box girder segment 02 and the steel box girder body 01 are aligned in the vertical direction.
Referring to fig. 4, 5, 6 and 8, the driving member 5 includes a first motor 51, a second motor 52, an inner rod 53 and a sleeve rod 54, wherein the inner rod 53 and the sleeve rod 54 are rotatably assembled in the positioning rod 2, the sleeve rod 54 is rotatably sleeved outside the inner rod 53, the inner rod 53 and the center line of the positioning rod 2 are positioned on the same straight line, an output end of the first motor 51 is connected with the inner rod 53, an output end of the second motor 52 is connected with the sleeve rod 54, and the first motor 51 and the second motor 52 are arranged on the linkage rod 72. The end of the inner rod 53 extends out of the sleeve rod 54, a first driving rod 73 is arranged between the inner rods 53 in the two positioning rods 2, namely, the first driving rod 73 is perpendicular to the inner rods 53 in the two positioning rods 2, bevel gear sets 75 are arranged at two ends of the first driving rod 73, and the first driving rod 73 is connected with the two inner rods 53 through the bevel gear sets 75.
Referring to fig. 6 and 7, a second driving rod 74 is disposed between the loop bars 54 in the two positioning rods 2, that is, the second driving rod 74 is disposed perpendicular to the loop bars 54 in the two positioning rods 2, two bevel gear sets 76 are disposed at two ends of the second driving rod 74, and the second driving rod 74 is connected with the two loop bars 54 through the second bevel gear sets 76. The first motor 51 is connected to the first driving rod 73 via a coupling, and the second motor 52 is connected to the second driving rod 74 via a coupling.
The first motor 51 drives the two inner rods 53 to rotate simultaneously through the first driving rod 73, and the second motor 52 drives the two sleeve rods 54 to rotate simultaneously through the second driving rod 74.
Referring to fig. 8, 9 and 10, an inner block 8 is provided on the outside of the loop bar 54, the inner block 8 is rotatably provided on the outside of the loop bar 54, the end of the inner bar 53 extends to the outside of the loop bar 54, an inner block 82 is provided on the outside of the inner bar 53, and the inner block 82 is slidably fitted in the inner bar 53, that is, the inner block 82 slides on the inner bar 53 in the longitudinal direction of the inner bar 53. The first inner block 8 and the second inner block 82 are arranged at intervals, and a second threaded groove 531 which is in threaded fit with the second inner block 82 is formed in the inner rod 53. A second slide block 411 is slidably mounted on the horizontal plate 41, the sliding direction of the second slide block 411 is parallel to the inner rod 53, the second slide block 411 is located in the middle of the first inner block 8 and the second inner block 82, a second connecting rod 83 is rotatably arranged between the first inner block 8 and the second slide block 411 and between the second inner block 82 and the second slide block 411, and the second connecting rod 83 is in an inclined state.
When the inner rod 53 is rotated, the inner rod 53 drives the inner block II 82 to move close to the inner block I8 through the thread groove II 531, drives the connecting rod II 83 to rotate, and the connecting rod II 83 rotates to push the horizontal plate 41 to move so as to adjust the position of the horizontal plate 41.
Referring to fig. 8, 9 and 10, a first sleeve block 84 and a second sleeve block 85 are provided outside the sleeve rod 54, the first sleeve block 84 and the second sleeve block 85 are provided at intervals along the length direction of the sleeve rod 54, the first sleeve block 84 is rotatably provided outside the sleeve rod 54, the second sleeve block 85 is slidably provided along the length direction of the sleeve rod 54, and a first thread groove 541 in threaded engagement with the second sleeve block 85 is provided on the sleeve rod 54. A first slider 421 is slidably disposed on the vertical plate 42, and a sliding direction of the first slider 421 is parallel to a length direction of the loop bar 54. The first slide block 421 is positioned in the middle of the first sleeve block 84 and the second sleeve block 85, a first connecting rod 86 is rotatably connected between the first sleeve block 84 and the first slide block 421 and between the second sleeve block 85 and the first slide block 421, and the first connecting rod 86 is in an inclined state.
When the sleeve rod 54 rotates, the first threaded groove 541 drives the second sleeve block 85 to move close to the first sleeve block 84, the first slide block 421 slides on the vertical plate 42, and the first connecting rod 86 rotates to push the vertical plate 42 to move, so as to adjust the position of the vertical plate 42. The first connecting rod 86 is disposed on the upper and lower sides of the sleeve rod 54, so that when the second sleeve block 85 moves, the two sets of vertical plates 42 can be adjusted at the same time, and the two sets of vertical plates 42 are driven to move at the same time. And because the first inner block 8 is in rotating fit with the sleeve rod 54, when the sleeve rod 54 rotates to adjust the position of the vertical plate 42, the first inner block 8 can rotate relative to the sleeve rod 54 to keep a static state, so that the phenomenon of interference with the rotation of the sleeve rod 54 is avoided.
Referring to fig. 9 and 10, the first sleeve block 84 and the second sleeve block 85 are disposed between the first inner block 8 and the second inner block 82, the rotation surface of the first connecting rod 86 is perpendicular to the rotation surface of the second connecting rod 83, the phenomenon that the second sleeve block 85 and the second inner block 82 interfere with each other is avoided, the first connecting rod 86 and the second connecting rod 83 interfere with each other, the positions of the horizontal plate 41 and the vertical plate 42 can be adjusted successively, and the structures do not interfere with each other.
Referring to fig. 11 and 12, the horizontal plate 41 includes a receiving portion 412 and an abutting portion 413, the receiving portion 412 is slidably mounted in the chute 21, the abutting portion 413 is slidably mounted on the receiving portion 412 up and down, a relief groove 414 is formed in a side of the receiving portion 412 adjacent to the abutting portion 413, an intermediate plate 415 is disposed in the relief groove 414 on a side of the abutting portion 413 adjacent to the receiving portion 412, a spring piece 416 is disposed on the intermediate plate 415, the spring piece 416 is provided as a spring, the spring piece 416 is disposed in a vertical direction, and both ends of the spring piece 416 are respectively connected with the intermediate plate 415 and an inner wall of the relief groove 414.
The receiving portion 412 moves to drive the abutting portion 413 to abut against the inner wall of the positioning groove 62, and when the abutting portion 413 abuts against the inner wall of the positioning groove 62, the abutting portion 413 moves completely to the outside of the chute 21, that is, the abutting portion 413 can slide relative to the receiving portion 412. After the horizontal plate 41 abuts against the positioning groove 62, the vertical plate 42 is driven to abut against the inner wall of the positioning groove 62, and when the vertical plate 42 is matched with the inner wall of the positioning groove 62, the connecting portion 6 is driven to move in the vertical direction to adjust the position of the connecting portion, and in the adjusting process, the abutting portion 413 moves along with the connecting portion 6, that is, the abutting portion 413 moves relative to the receiving portion 412 until the two vertical plates 42 are both abutted against the inner wall of the positioning groove 62. By arranging the abutting part 413 to be in sliding fit with the receiving part 412, the phenomenon that the vertical plate 42 is interfered with the inner wall of the positioning groove 62 after the abutting part 413 abuts against the inner wall of the positioning groove 62 is avoided. And the elastic member 416 is disposed, after the assembly is completed, the abutting portion 413 is separated from the inner wall of the positioning groove 62, and the elastic member 416 can drive the abutting portion 413 to move to the initial position so as to perform the next auxiliary positioning operation.
Referring to fig. 11, two elastic members 416 are provided, and the two elastic members 416 are respectively disposed on the upper and lower sides of the middle plate 415, and the two elastic members 416 are always in a compressed state, so as to drive the abutting portion 413 to move to an initial position after the abutting portion 413 is separated from the inner wall of the positioning groove 62.
Referring to fig. 5, two sets of guide plates 9 are provided on the inner wall of the positioning groove 62, the two sets of guide plates 9 correspond to the horizontal sides of the positioning rod 2, each two guide plates 9 are one set, and the two guide plates 9 are arranged at intervals along the length direction of the positioning rod 2, that is, the gap between the two guide plates 9 corresponds to the horizontal plate 41, and after the positioning rod 2 is completely inserted into the positioning groove 62, the horizontal plate 41 is located between the two guide plates 9. The two guide plates 9 are provided with guide inclined planes on one sides close to each other, when the horizontal plate 41 moves away from the positioning rod 2, the horizontal plate 41 can move between the two guide plates 9 through the guide inclined planes, and after the horizontal plate 41 moves between the two guide plates 9, the distance between the baffle plate 71 and the positioning sleeve 7 is the same as the distance between the steel box girder section 02 and the steel box girder body 01. So that after the baffle 71 is abutted against the positioning sleeve 7, the steel box girder section 02 is aligned with the steel box girder body 01, and the positioning of the two is realized.
Referring to fig. 9, a sliding rail 422 is disposed on each of the horizontal plate 41 and the vertical plate 42 near the positioning rod 2, a first slide 421 is slidably mounted in the sliding rail 422, and a second slide 411 is also slidably mounted in the corresponding sliding rail 422, that is, the first slide 421 is engaged with the vertical plate 42 via the sliding rail 422, and the second slide 411 is slidably engaged with the horizontal plate 41 via the sliding rail 422. Since the inner block two 82 and the sleeve block two 85 are fixed while moving, the inner block one 8 and the sleeve block one 84 are fixed, so that the first slide 421 and the second slide 411 can move along with the rotation of the first link 86 or the second link 83, and the positions of the first slide 421 and the second slide 411 are limited by the slide rail 422, so that the stability of the first slide 421 and the second slide 411 during movement is ensured.
Referring to fig. 9, a first telescopic rod 91 for connecting the first and second telescopic rods is disposed between the two vertical plates 42, a second telescopic rod 92 for connecting the first and second telescopic rods is disposed between the two horizontal plates 41, the first telescopic rod 91 is perpendicular to the vertical plates 42, the second telescopic rod 92 is perpendicular to the horizontal plates 41, namely the first telescopic rod 91 is perpendicular to the second telescopic rod 92, the first telescopic rod 91 and the second telescopic rod 92 are identical in structure and are of telescopic rod-shaped structures, stability between the two vertical plates 42 is guaranteed through the first telescopic rod 91, and stability between the horizontal plates 41 is guaranteed through the second telescopic rod 92.
The invention has the implementation principle that after the crane body 1 drives the connecting part 6 to move to be positioned at the same height with the positioning rod 2, the crane body 1 drives the connecting part 6 to be close to the positioning rod 2, so that the positioning rod 2 is inserted into the positioning groove 62, then the motor I51 and the motor II 52 drive the inner rod 53 and the sleeve rod 54 to move in sequence, so that the horizontal plate 41 and the vertical plate 42 are abutted against the inner wall of the positioning groove 62, the center line of the positioning groove 62 and the center line of the positioning rod 2 are positioned on the same straight line, at the moment, the steel box girder section 02 and the steel box girder body 01 are aligned in the horizontal direction, then the pushing piece 3 drives the positioning rod 2 to move, the positioning rod 2 drives the connecting part 6 to move through the vertical plate 42 and the horizontal plate 41, and the crane body 1 is synchronously driven until the baffle 71 is abutted against the end of the positioning sleeve 7, at the moment, the steel box girder section 02 and the end of the steel box girder body 01 are aligned, and the positioning of the two is completed, so that the subsequent installation is convenient.
Through setting up vertical board 42 and horizontal plate 41 and constant head tank 62 cooperation in the side of locating lever 2, at the hoist and mount in-process that drives steel case girder segment 02 and be close to steel case girder body 01, the phenomenon that the steel case girder segment 02 appears rocking is reduced, can fix a position steel case girder segment 02 in the horizontal direction simultaneously to follow-up assembly is carried out, assembly efficiency is promoted.
The invention also discloses a bridge deck construction method, and the crane for bridge deck construction is adopted.
A bridge deck construction method comprises the following steps:
s1, moving the crane body 1 so that the end part of the positioning sleeve 7 is level with the end part of the steel box girder body 01 in the vertical direction;
S2, connecting a lifting appliance 11 with the steel box girder section 02, lifting the steel box girder section 02 by the crane body 1 to move upwards, and driving the connecting part 6 to approach the positioning rod 2 until the positioning rod 2 is inserted into the positioning groove 62 after the connecting part 6 moves to the same height as the positioning rod 2;
S3, the driving piece 5 drives the positioning plate 4 to move to be matched with the inner wall of the positioning groove 62;
s4, the pushing piece 3 drives the positioning rod 2 to move, meanwhile, the crane body 1 drives the connecting portion 6 to synchronously move with the positioning rod 2, after the baffle 71 is abutted with the positioning sleeve 7, the positioning rod 2 and the connecting portion 6 stop moving, and the steel box girder section 02 is assembled.
While embodiments of the present invention have been shown and described above, it will be understood that the above embodiments are illustrative and not to be construed as limiting the invention, and that variations, modifications, alternatives and variations may be made to the above embodiments by one of ordinary skill in the art within the scope of the invention.
Claims (7)
1. The crane for bridge deck construction comprises a crane body positioned above a steel box girder body, and is characterized in that a positioning assembly is arranged on the crane body and comprises a positioning rod horizontally assembled on the crane body, a pushing piece connected with the positioning rod, a plurality of positioning plates slidingly assembled on the side surface of the positioning rod and a driving piece connected with the positioning plate, wherein the lifting tool comprises a connecting part, a positioning groove for inserting the positioning rod is horizontally formed in the connecting part towards the positioning rod, after the connecting part and the positioning rod are positioned at the same height, the connecting part is moved through the lifting tool to insert the positioning rod into the positioning groove, then the driving piece drives the positioning plates to be in abutting connection with the inner wall of the positioning groove, so that the central lines of the positioning rod and the positioning groove are positioned on the same straight line, and then the pushing piece drives the steel box girder section to be close to the steel box girder body through the positioning rod and the connecting part;
The side of the positioning rod is provided with a chute for installing the positioning plate, the positioning plate comprises a horizontal plate and a vertical plate, the horizontal plate and the vertical plate are both provided with two groups, the horizontal plate is provided with two groups and is respectively positioned on the horizontal two sides of the positioning rod, the vertical plate is provided with two groups and is respectively positioned on the upper side and the lower side of the positioning rod, the horizontal plate slides on the positioning rod along the horizontal direction, and the vertical plate slides on the positioning rod along the vertical direction;
The driving piece comprises a first motor, a second motor, an inner rod rotationally assembled in the positioning rod and a sleeve rod rotationally sleeved outside the inner rod, the output end of the first motor is connected with the inner rod, the output end of the second motor is connected with the sleeve rod, the first motor drives the inner rod to rotate and controls the horizontal plate to move, and the second motor drives the sleeve rod to rotate and controls the vertical plate to move;
The sleeve rod is externally provided with a first sleeve block and a second inner block in a rotating mode, the sleeve rod is externally provided with a first sleeve block, a first threaded groove matched with the second sleeve block is formed in the outer portion of the sleeve rod, a first sliding block is arranged on the vertical plate in a sliding mode along the length direction of the sleeve rod, the first sliding block is located between the first sleeve block and the second sleeve block, a connecting rod is arranged between the first sleeve block and the first sliding block and between the second sleeve block and the first sliding block in a rotating mode, the inner rod is externally provided with a second inner block in a sliding mode, a second threaded groove matched with the second inner block is formed in the outer portion of the inner rod in a sliding mode, the second sliding block is arranged on the horizontal plate in the length direction of the inner rod in a sliding mode, the second sliding block is located in the middle of the second inner block and the first inner block, and the connecting rod is arranged between the second inner block and the second sliding block in a rotating mode.
2. The crane for bridge deck construction according to claim 1, wherein the crane body is provided with a positioning sleeve, the positioning rod is slidably assembled in the positioning sleeve, the end part of the positioning sleeve is flush with the steel box girder body in the vertical direction, the positioning rod is provided with a baffle plate, and after the positioning rod is inserted into the positioning groove, the distance between the baffle plate and the positioning sleeve is the same as the distance between the steel box girder body and the steel box girder section.
3. The crane for bridge deck construction according to claim 1, wherein the first and second sleeve blocks are disposed between the first and second inner blocks, and a rotation surface of the first link is perpendicular to a rotation surface of the second link.
4. The crane for bridge deck construction according to claim 1, wherein the horizontal plate comprises a receiving part slidingly assembled in the chute and an abutting part slidingly assembled in the receiving part up and down, a yielding groove is formed in one side of the receiving part close to the abutting part, an intermediate plate is arranged on one side of the abutting part close to the receiving part, a spring piece connected with the inner wall of the yielding groove is arranged on the intermediate plate, and the abutting part completely moves to the outside of the chute when abutting against the side wall of the positioning groove.
5. The crane for bridge deck construction according to claim 1, wherein two sets of guide plates are provided on the inner wall of the positioning groove at intervals, the two sets of guide plates correspond to the horizontal sides of the positioning rod, each set of two guide plates is provided with one set of guide plates along the length direction of the positioning rod at intervals, the gap between the two guide plates corresponds to the horizontal plate, the sides of the two guide plates, which are close to each other, are provided with guide inclined planes, and the horizontal plate moves between the two guide plates through the guide inclined planes.
6. The crane for bridge deck construction according to claim 1, wherein a first telescopic rod connecting the two is provided between the two vertical plates, and a second telescopic rod connecting the two is provided between the two horizontal plates.
7. A bridge deck construction method using the crane for bridge deck construction according to claim 2, comprising the steps of:
moving the crane body so that the end part of the positioning sleeve is flush with the end part of the steel box girder in the vertical direction;
Connecting a lifting appliance with the steel box girder section, lifting the steel box girder section by the crane body to move upwards, and driving the connecting part to approach the positioning rod after the connecting part moves to the same height as the positioning rod until the positioning rod is inserted into the positioning groove;
the driving piece drives the positioning plate to move to be matched with the inner wall of the positioning groove;
The pushing piece drives the positioning rod to move, meanwhile, the crane body drives the connecting part and the positioning rod to synchronously move, and after the baffle plate is abutted with the positioning sleeve, the positioning rod and the connecting part stop moving to assemble the steel box girder section.
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| CN202511483934.XA CN120945805B (en) | 2025-10-17 | 2025-10-17 | Crane for bridge deck construction and construction method thereof |
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| CN202511483934.XA CN120945805B (en) | 2025-10-17 | 2025-10-17 | Crane for bridge deck construction and construction method thereof |
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Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117303228A (en) * | 2023-10-07 | 2023-12-29 | 中交三公局第一工程有限公司 | Mast type hollow girder erecting crane |
| CN117602502A (en) * | 2023-11-23 | 2024-02-27 | 中铁广州工程局集团有限公司 | Bridge deck crane hoist |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| JP5632212B2 (en) * | 2010-06-25 | 2014-11-26 | 川田工業株式会社 | Heavy goods transport installation equipment |
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Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117303228A (en) * | 2023-10-07 | 2023-12-29 | 中交三公局第一工程有限公司 | Mast type hollow girder erecting crane |
| CN117602502A (en) * | 2023-11-23 | 2024-02-27 | 中铁广州工程局集团有限公司 | Bridge deck crane hoist |
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