CN209578627U - A kind of adaptive prefabricated special-purpose assorted device of crane girder camber - Google Patents
A kind of adaptive prefabricated special-purpose assorted device of crane girder camber Download PDFInfo
- Publication number
- CN209578627U CN209578627U CN201920358418.8U CN201920358418U CN209578627U CN 209578627 U CN209578627 U CN 209578627U CN 201920358418 U CN201920358418 U CN 201920358418U CN 209578627 U CN209578627 U CN 209578627U
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- China
- Prior art keywords
- girder
- hydraulic cylinder
- cover board
- web plate
- camber
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Abstract
The utility model discloses a kind of adaptive prefabricated special-purpose assorted devices of crane girder camber, mainly by being connected and composed by valve and oil pump with fuel tank after the parallel connection of the multiple hydraulic cylinders of lineal layout, the top of each hydraulic cylinder piston rod passes through pin shaft respectively and is hinged with curved support frame, which passes through roll shaft respectively and be fixed with the roller for being used to support girder cover board.The utility model is by the parallel connection of multiple groups one-way cylinder so that each hydraulic cylinder lifting force is equal, and then obtain the workbench that each supporting point can float up and down, it is pressed using girder web plate self gravity to girder cover board, so that girder cover board deforms along two sides girder web plate sideline and is finally bonded with two sides girder web plate sideline, the welding between girder web plate and girder cover board can be carried out at this time, and efficiently and accurately is easy to construct, labor intensity of workers can be greatly reduced and produce to the crane girder of different length and camber adaptable.
Description
Technical field
The utility model belongs to crane manufacturing technology field, and in particular to a kind of crane girder camber is adaptive
Prefabricated special-purpose assorted device.
Background technique
Crane has been widely used in building, construction of road and bridge, logistic storage etc. as most common engineering machinery
Field, and main load bearing component of the crane girder as crane, intensity and reliability directly affect the matter of crane
Amount and safety reduce lifting usually using the method for prefabricated camber in the world to improve the bearing capacity of crane girder
The lower flexure strain that main beam generates in use.
Current each common crane girder camber method for prefabricating of manufacturing enterprise is: by girder cover board and big small baffle by wanting
It asks Combination Welding to complete, then the girder cover board after welding is placed on level ground, then the girder abdomen that camber will be cut
Plate and girder cover board group pair add cushion block to both ends along girder cover plate central so that girder cover board upward and with girder abdomen
Plate fitting, then welds two sides girder web plate and girder cover board.However, in actual production, not due to crane girder length
One, tonnage is different, required camber is also not quite similar, therefore guarantees girder cover board and master by adjusting cushion block height and spacing
Web fits closely very difficult, and generally requiring repeatedly mobile and replacement cushion block could make girder web plate and girder cover board paste
It closes closely, this results in crane girder cover board and girder web plate welding sequence efficiency extremely low, while also adding the labor of worker
Fatigue resistance.Therefore, it is badly in need of a kind of new crane girder camber method for prefabricating, to improve crane girder production efficiency, and protects
Girder quality is demonstrate,proved, labor intensity of workers is reduced.
Summary of the invention
The utility model solve the technical issues of there is provided a kind of efficiently and accurately, be easy to construct, worker can be greatly reduced
Labor intensity and to produce adaptable crane girder camber to the crane girder of different length and camber adaptively prefabricated
Special-purpose assorted device, the device pass through multiple groups list dedicated for the welding sequence of crane girder cover board and two sides girder web plate
Action oil cylinder is in parallel so that each hydraulic cylinder lifting force is equal, and then obtains the work that each supporting point can float up and down
Platform presses to girder cover board using girder web plate self gravity, so that girder cover board becomes along two sides girder web plate sideline
Shape is simultaneously finally bonded with two sides girder web plate sideline, can carry out the welding between girder web plate and girder cover board at this time.
The utility model adopts the following technical scheme that a kind of crane girder camber is adaptive to solve above-mentioned technical problem
Prefabricated special-purpose assorted device, it is characterised in that mainly by along the multiple hydraulic cylinders of lineal layout it is in parallel after by valve and oil pump with
Fuel tank connects and composes, and the top of each hydraulic cylinder piston rod passes through pin shaft respectively and is hinged with curved support frame, the curved support frame
Both ends pass through roll shaft respectively and are fixed with the roller for being used to support girder cover board.
Preferably, the hydraulic cylinder is all set in trench, which passes through bolt and trench top
Mounting plate be fixedly connected, the position for fixer cylinder pressure avoids hydraulic cylinder in work from toppling over, and connects each hydraulic cylinder
Oil pipe be layed in trench, each oil pipe is collected to after general pipeline by conduit coupling and passes sequentially through valve and oil pump and fuel tank
Connection.
A kind of adaptive method for prefabricating of crane girder camber, it is characterised in that specific steps are as follows:
Step S1: by along the multiple hydraulic cylinders of lineal layout it is in parallel after connected and composed with fuel tank by valve and oil pump it is each
The self-adaptation type crane girder welding bench that hydraulic cylinder supporting point can float up and down opens valve and connects oil pump electricity
Source is injected the hydraulic oil in fuel tank in each hydraulic cylinder by oil pump, when each hydraulic cylinder piston rod ejection height reaches 1/3
When~1/2 total kilometres, disconnects oil pump power supply and close valve, at this time each liquid in self-adaptation type crane girder welding bench
The thrust of pressure cylinder piston bar is equal, and the top of each hydraulic cylinder piston rod is hinged with curved support frame respectively；
Step S2: the girder cover board for being welded with large baffle and small baffle is placed in self-adaptation type crane girder welding
On platform, make the hydraulic cylinder piston rod below girder cover board by drops, girder cover board under girder cover board self gravitation effect
Hydraulic oil in lower cylinder flows out in the hydraulic cylinder that both ends are not pressed, so that both ends hydraulic cylinder piston rod pushes up completely
Out, remaining hydraulic cylinder piston rod below girder cover board drops to same equilbrium position；
Step S3: the girder web plate of well cutting is lifted to girder cover board, since girder web plate is in intermediate convex both ends
Recessed domes, girder web plate middle part first contact girder cover board and make in the middle part of girder cover board under girder web plate gravity
Sink, the hydraulic cylinder piston rod positioned at medium position declines and to make the hydraulic oil in the hydraulic cylinder flow to pressure at both sides lower
In hydraulic cylinder, so that two sides hydraulic cylinder jacks up, girder cover board two sides are upward under the collective effect of hydraulic cylinder and curved support frame
Arc fold bending, until girder cover board is bonded completely with two sides girder web plate, when girder cover board arc fold bending to complete fitting two sides
When girder web plate, the thrust acted below girder cover board on each hydraulic cylinder piston rod is equal, reaches equilibrium state；
Step S4: the girder cover board being bonded completely and two sides girder web plate are welded again.
Preferably, self-adaptation type crane girder welding bench described in step S1 is installed in trench, the trench
Depth is consistent with the height of cylinder of hydraulic cylinder, and cylinder ends ring flange connects by the way that bolt and the mounting plate on trench top are fixed
It connects, the position for fixer cylinder pressure avoids hydraulic cylinder in work from toppling over, and the oil pipe for connecting each hydraulic cylinder is layed in ground
In ditch.
Preferably, girder cover board described in step S2 carries out blanking, the large baffle and small using semi-automatic flame cutting
Partition carries out blanking using plasma Numerical control cutting.
Preferably, plasma numerical control Whole blanking is used after girder web plate described in step S3 is smoothed using roll bending uncoiling,
Obtain two pieces of girder web plates of no spreading weld seam.
Preferably, the detailed process of step S4 is by two workers or two automatic welders simultaneously from the middle part of girder cover board
To both ends welding, the welding of long weld seam between girder cover board and two sides girder web plate is completed.
Compared with the prior art, the utility model has the following advantages: crane girder web use etc. in the utility model
Ion CNC cutting, so that it is more accurate to start main beam camber curve, then by self-adaptation type crane girder welding
Platform completes the compression welding of crane girder cover board and two coxostermums, without artificial addition cushion block, reduces the labor of worker
Fatigue resistance, production efficiency are improved significantly, and product quality is effectively ensured.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the utility model middle girder web；
Fig. 2 is the structural schematic diagram that the girder cover board of large baffle and small baffle is welded in the utility model；
Fig. 3 is that the structure of the self-adaptation type crane girder welding bench in the utility model after placement girder cover board is shown
It is intended to；
Fig. 4 is the working state schematic representation of self-adaptation type crane girder welding bench in the utility model；
Fig. 5 is the structural schematic diagram of single hydraulic cylinder and curved support frame in the utility model；
Fig. 6 is the mounting structure state diagram of self-adaptation type crane girder welding bench in the utility model.
In figure: 1- hydraulic cylinder, 2- valve, 3- oil pump, 4- fuel tank, 5- piston rod, 6- pin shaft, 7- curved support frame, 8- master
Beam cover board, 9- roller, 10- trench, 11- mounting plate, 12- oil pipe, 13- conduit coupling, 14- large baffle, 15- small baffle, 16-
Girder web plate.
Specific embodiment
The technical solution of the utility model is described in detail in conjunction with attached drawing, a kind of crane girder camber is adaptive prefabricated dedicated
Corollary apparatus is mainly connected and composed by passing through valve 2 and oil pump 3 after 1 parallel connection of multiple hydraulic cylinders of lineal layout with fuel tank 4,
The top of each 1 piston rod 5 of hydraulic cylinder passes through pin shaft 6 respectively and is hinged with curved support frame 7,7 both ends of curved support frame difference
The roller 9 for being used to support girder cover board 8 is fixed with by roll shaft, the hydraulic cylinder 1 is all set in trench 10, the hydraulic cylinder 1
End flange disk is fixedly connected by bolt with the mounting plate 11 on 10 top of trench, and the position for fixer cylinder pressure 1 avoids work
Hydraulic cylinder 1 is toppled in work, and the oil pipe 12 for connecting each hydraulic cylinder 1 is layed in trench 10, and each oil pipe 12 passes through pipeline
Connector 13 passes sequentially through valve 2 after being collected to general pipeline and oil pump 3 is connect with fuel tank 4.
The adaptive method for prefabricating of crane girder camber described in the utility model, the specific steps are that:
Step S1: it is connected and composed valve 2 and oil pump 3 is passed through after 1 parallel connection of multiple hydraulic cylinders of lineal layout with fuel tank 4
The self-adaptation type crane girder welding bench that each 1 supporting point of hydraulic cylinder can float up and down opens valve 2 and connects oil
3 power supplys are pumped, are injected the hydraulic oil in fuel tank 4 in each hydraulic cylinder 1 by oil pump 3, when each 1 piston rod 5 of hydraulic cylinder ejects
When height reaches 1/3~1/2 total kilometres, disconnects 3 power supply of oil pump and close valve 2, self-adaptation type crane girder welds at this time
The thrust of each 1 piston rod 5 of hydraulic cylinder is equal in workbench, and the top of each 1 piston rod 5 of hydraulic cylinder is hinged with arc branch respectively
Support 7；
Step S2: the girder cover board 8 for being welded with large baffle 14 and small baffle 15 is placed in the weldering of self-adaptation type crane girder
It connects on workbench, depresses 1 piston rod 5 of hydraulic cylinder below girder cover board 8
It drops, the hydraulic oil in 8 lower cylinder 1 of girder cover board flows out in the hydraulic cylinder 1 that both ends are not pressed, so that both ends hydraulic cylinder
1 ejection completely of piston rod 5, remaining 1 piston rod 5 of hydraulic cylinder of 8 lower section of girder cover board drop to same equilbrium position；
Step S3: by the lifting of girder web plate 16 of well cutting to 8 top of girder cover board, since girder web plate 16 is in intermediate convex
The recessed domes in both ends, 16 middle part of girder web plate first contact girder cover board 8 and make winner under 16 gravity of girder web plate
Sink in the middle part of beam cover board 8, decline positioned at 1 piston rod 5 of hydraulic cylinder of medium position and the hydraulic oil in the hydraulic cylinder 1 is flow to
In the lower hydraulic cylinder 1 of pressure at both sides, so that two sides hydraulic cylinder 1 jacks up, 8 two sides of girder cover board are in hydraulic cylinder 1 and curved support
Upward arc fold bending under the collective effect of frame 7, until girder cover board 8 is bonded completely with two sides girder web plate 16, when girder cover board 8
When arc fold bending to complete fitting two sides girder web plate 16, act on 8 each 1 piston rod 5 of hydraulic cylinder in lower section of girder cover board
Thrust is equal, reaches equilibrium state；
Step S4: the girder cover board 8 being bonded completely and two sides girder web plate 16 are welded again.
Self-adaptation type crane girder welding bench described in step S1 is installed in trench, the depth and liquid of the trench
The height of cylinder of cylinder pressure is consistent, and cylinder ends ring flange is fixedly connected by bolt with the mounting plate on trench top, for solid
The position for determining hydraulic cylinder avoids hydraulic cylinder in work from toppling over, and the oil pipe for connecting each hydraulic cylinder is layed in trench.
Girder cover board described in step S2 carries out blanking using semi-automatic flame cutting, and the large baffle and small baffle use
Plasma Numerical control cutting carries out blanking.
Girder web plate described in step S3 obtains nothing and connects using plasma numerical control Whole blanking is used after roll bending uncoiling smoothing
Two pieces of girder web plates of long weld seam.
The detailed process of step S4 is from two workers or two automatic welders simultaneously from the middle part of girder cover board to both ends
The welding of long weld seam between girder cover board and two sides girder web plate is completed in welding.
The utility model passes through multiple groups nonoculture dedicated for the welding sequence of crane girder cover board and two sides girder web plate
With oil cylinder parallel connection so that each hydraulic cylinder lifting force is equal, and then it is flat to obtain the work that each supporting point can float up and down
Platform presses to girder cover board using girder web plate self gravity, so that girder cover board deforms along two sides girder web plate sideline
And be finally bonded with two sides girder web plate sideline, the welding between girder web plate and girder cover board can be carried out at this time.
The basic principle of the utility model, main feature and advantage has been shown and described above, it is practical new not departing from this
Under the premise of type spirit and scope, there are also various changes and modifications, these changes and improvements both fall within requirement and protect the utility model
The scope of the utility model of shield.
Claims (2)
1. a kind of adaptive prefabricated special-purpose assorted device of crane girder camber, it is characterised in that mainly by along the more of lineal layout
It is connected and composed by valve and oil pump with fuel tank after a hydraulic cylinder is in parallel, the top of each hydraulic cylinder piston rod passes through pin shaft respectively
It is hinged with curved support frame, which passes through roll shaft respectively and be fixed with the roller for being used to support girder cover board.
2. the adaptive prefabricated special-purpose assorted device of crane girder camber according to claim 1, it is characterised in that: described
Hydraulic cylinder is all set in trench, which is fixedly connected by bolt with the mounting plate on trench top, is used
Hydraulic cylinder in work is avoided to topple in the position of fixer cylinder pressure, the oil pipe for connecting each hydraulic cylinder is layed in trench,
Each oil pipe is collected to after general pipeline by conduit coupling to be passed sequentially through valve and oil pump and connect with fuel tank.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920358418.8U CN209578627U (en) | 2019-03-21 | 2019-03-21 | A kind of adaptive prefabricated special-purpose assorted device of crane girder camber |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920358418.8U CN209578627U (en) | 2019-03-21 | 2019-03-21 | A kind of adaptive prefabricated special-purpose assorted device of crane girder camber |
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| Publication Number | Publication Date |
|---|---|
| CN209578627U true CN209578627U (en) | 2019-11-05 |
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ID=68374642
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920358418.8U Expired - Fee Related CN209578627U (en) | 2019-03-21 | 2019-03-21 | A kind of adaptive prefabricated special-purpose assorted device of crane girder camber |
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| CN (1) | CN209578627U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109746614A (en) * | 2019-03-21 | 2019-05-14 | 郑州大学 | A kind of adaptive method for prefabricating of crane girder camber and its special-purpose assorted device |
-
2019
- 2019-03-21 CN CN201920358418.8U patent/CN209578627U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109746614A (en) * | 2019-03-21 | 2019-05-14 | 郑州大学 | A kind of adaptive method for prefabricating of crane girder camber and its special-purpose assorted device |
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20191105 Termination date: 20200321 |
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| CF01 | Termination of patent right due to non-payment of annual fee |