CN207419280U - Walking pushing tow system with flexural pivot device - Google Patents
Walking pushing tow system with flexural pivot device Download PDFInfo
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- CN207419280U CN207419280U CN201721536868.9U CN201721536868U CN207419280U CN 207419280 U CN207419280 U CN 207419280U CN 201721536868 U CN201721536868 U CN 201721536868U CN 207419280 U CN207419280 U CN 207419280U
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- slideway
- jack
- flexural pivot
- sliding block
- pivot device
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Abstract
The utility model is related to the deviation correcting device of sharp radius curve prestressed concrete beam, the walking pushing tow system specially with flexural pivot device.Walking pushing tow system with flexural pivot device, including thrustor, deviation correcting device and steel buttress, wherein thrustor includes level jack, vertical jack, slideway and sliding block, deviation correcting device includes horizontal correction jack, slideway is placed on pier top, sliding block is slidably arranged on slideway, level jack is arranged on one end of slideway and its piston rod is connected with sliding block, vertical jack is arranged on sliding block, flexural pivot device is provided at the top of vertical jack, steel buttress is also disposed at pier top and it is located at the other end of slideway, horizontal correction jack is fixed on pier top and its piston rod is connected with slideway.The utility model solves the problems, such as minor radius, the correction of variable curvature beams of concrete incremental launching construction central sill running body track and does not destroy girder construction.
Description
Technical field
The utility model is related to the deviation correcting device of sharp radius curve prestressed concrete beam, specially with flexural pivot device
Walking pushing tow system.
Background technology
During China is using across the railway concrete continuous beam of incremental launching method, it is using more horizontal method for correcting error
Correction is forced, i.e., bracket formed steel construction deviation-rectifying bracket is set in pier top both sides before construction, and places beam body correction large-tonnage
Lateral jack and idler wheel, the cross force that beam body both sides are acted on using correction jack are corrected beam body to predetermined rail
On mark.When continuous beam is sharp radius curve prestressed concrete beam, existing easement curve has circular curve, such minor radius and change again
The prestressed concrete beam of curvature is using forcing method for correcting error, it is ensured that beam body is accurate, safe pushing tow be in place it is extremely difficult, simultaneously
Horizontal correction jack adds the frequency of exposure of beam body side, increases the risk that beam body and pier shaft structure are destroyed, cracked.
The content of the invention
The utility model in order to solve minor radius, variable curvature beams of concrete incremental launching construction central sill running body track correction and not
Destroy girder construction the problem of, ad hoc meter only overcomes very little frictional force between slideway bottom and pier top, can lightly, flexibly change beam body
The walking pushing tow system with flexural pivot device of traffic direction, both ensure that beam body traffic direction was accurate, and had in turn avoided beam body
With pier shaft because the cracking risk generated during laterally correction power effect.
The utility model adopts the following technical scheme that realization：Walking pushing tow system with flexural pivot device, bag
Thrustor, deviation correcting device and steel buttress are included, wherein thrustor includes level jack, vertical jack, slideway and sliding block,
Deviation correcting device includes horizontal correction jack, and slideway is placed on pier top, and sliding block is slidably arranged on slideway, and level jack is set
It is connected in one end of slideway and its piston rod with sliding block, vertical jack is arranged on sliding block, and the top of vertical jack is set
There is flexural pivot device, flexural pivot device includes top plate and ball hinge, and the bottom surface of top plate is equipped with convex spherical, and ball hinge top surface is and convex ball
The concave spherical surface of face cooperation, steel buttress is also disposed at pier top and it is located at the other end of slideway, and horizontal correction jack is fixed on pier
It pushes up and its piston rod is connected with slideway.
In order to solve minor radius variable curvature curved prestressing force concrete continuous beam along predetermined traveling Trajectory Safety, accurate pushing tow
In place, the walking pushing tow system being made of in the setting of each pier top thrustor, deviation correcting device and steel buttress.It is filled using pushing tow
It puts and beam body is completed into cycle operation " with rising with falling, with into moving back "（The process of one cycle operation is：It is vertical in each pier top
Jack simultaneously lift beam body is lifted, more than steel buttress, level jack pulls sliding block to be moved on slideway simultaneously, beam body to
Direction jacking in place, vertical jack is fallen after being moved into place, and beam body is supported on steel buttress, and sliding block is retracted into initial position,
Then next cycle operation is carried out）, in the case that beam body is supported on steel buttress, horizontal correction jack only overcomes slideway bottom and pier
Frictional force between top inwardly or outwardly moves slideway, and slideway can make level in the angle of one very little of pier top unitary rotation
The jack direction of motion, into a micro- angle, so as to change the beam body direction of motion, ensures beam body with concrete beam body moving direction
It is in the right direction, precisely in place.In addition also according to continuous beam pushing tow weight is big, the spy more than vertical jack and beam bottom frequency of exposure
Point, designed, designed flexural pivot device.The vertical jack of the device containing flexural pivot in the contact process of beam bottom, can be real according to beam bottom
Out-of-flatness situation in border carries out adaptive adjustment contact angle, closely connected with beam bottom gapless, has both avoided jack during top beam
It should be destroyed by non-vertical power, in turn avoid beam body and crack due to stress surface is uneven.
The above-mentioned walking pushing tow system with flexural pivot device, further includes guide plate, guide plate is fixed on slideway both sides.
The above-mentioned walking pushing tow system with flexural pivot device is provided with rubber pad at the top of top plate.
The utility model need not directly by laterally correction power be applied directly to beam body both sides, it is only necessary to overcome slideway bottom with
Slideway is horizontally rotated the angle of a very little by the frictional force of the very little between pier top to desired trajectory direction, can lightly, spirit
Change beam body traffic direction livingly, not only ensure that beam body traffic direction is accurate, but also reduce beam body both sides because of masterpiece of laterally rectifying a deviation
With and generate cracking risk.It can be used in the incremental launching construction of simple supported box beam, continuous beam box beam and girder steel etc. from now on such
Horizontal deviation correcting device.
Description of the drawings
Fig. 1 is the structure diagram of the utility model.
Fig. 2 is the top view of Fig. 1.
Fig. 3 is the structure diagram of flexural pivot device.
In figure：1- transverse direction correction jacks, the vertical jack of 2-, 3- level jacks, 4- slideways, 5- sliding blocks, 6- are oriented to
Plate, 7- steel buttresses, 8- beam bodies, 9- pier tops, 10- top plates, 11- ball hinges.
Specific embodiment
Walking pushing tow system with flexural pivot device, including thrustor, deviation correcting device and steel buttress 7, wherein pushing tow
Device includes level jack 3, vertical jack 2, slideway 4 and sliding block 5, and deviation correcting device includes horizontal correction jack 1, slideway
4 are placed on pier top, and sliding block 5 is slidably arranged on slideway 4, and level jack 3 is arranged on one end of slideway and its piston rod and cunning
Block 5 connects, and vertical jack 2 is arranged on sliding block 5, and the top of vertical jack 2 is provided with flexural pivot device, and flexural pivot device includes
Top plate 10 and ball hinge 11, the bottom surface of top plate 10 are equipped with convex spherical, and 11 top surface of ball hinge is the concave spherical surface with convex spherical cooperation,
Steel buttress 7 is also disposed at pier top and it is located at the other end of slideway 4, and horizontal correction jack 1 is fixed on pier top and its piston rod
It is connected with slideway 4.
The above-mentioned walking pushing tow system with flexural pivot device, further includes guide plate 6, guide plate 6 is fixed on slideway two
Side.
The above-mentioned walking pushing tow system with flexural pivot device, the top of top plate 10 is provided with rubber pad.
When it is implemented, the front end of level jack 3 is provided with pedestal, which is bolted on the one of slideway
End, the stroke of level jack 3 is 0.75m, i.e., beam body each cycles advance 0.75m, and the specification of rubber pad is 55cm long, 55cm
Wide, 1cm thickness.
Claims (3)
1. the walking pushing tow system with flexural pivot device, it is characterised in that including thrustor, deviation correcting device and steel buttress
（7）, wherein thrustor include level jack（3）, vertical jack（2）, slideway（4）And sliding block（5）, deviation correcting device includes
Horizontal correction jack（1）, slideway（4）It is placed on pier top, sliding block（5）It is slidably arranged in slideway（4）On, level jack（3）
It is arranged on one end of slideway and its piston rod and sliding block（5）Connection, vertical jack（2）It is arranged on sliding block（5）On, it is vertical very heavy
Top（2）Top be provided with flexural pivot device, flexural pivot device includes top plate（10）And ball hinge（11）, top plate（10）Bottom surface on set
There are convex spherical, ball hinge（11）Top surface be with convex spherical cooperation concave spherical surface, steel buttress（7）It is also disposed at pier top and it is located at cunning
Road（4）The other end, horizontal correction jack（1）It is fixed on pier top and its piston rod and slideway（4）Connection.
2. the walking pushing tow system according to claim 1 with flexural pivot device, it is characterised in that further include guide plate
（6）, guide plate（6）It is fixed on slideway both sides.
3. the walking pushing tow system according to claim 1 or 2 with flexural pivot device, it is characterised in that top plate（10）'s
Top is provided with rubber pad.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721536868.9U CN207419280U (en) | 2017-11-17 | 2017-11-17 | Walking pushing tow system with flexural pivot device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721536868.9U CN207419280U (en) | 2017-11-17 | 2017-11-17 | Walking pushing tow system with flexural pivot device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207419280U true CN207419280U (en) | 2018-05-29 |
Family
ID=62306576
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721536868.9U Active CN207419280U (en) | 2017-11-17 | 2017-11-17 | Walking pushing tow system with flexural pivot device |
Country Status (1)
| Country | Link |
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| CN (1) | CN207419280U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109930494A (en) * | 2019-04-11 | 2019-06-25 | 中交二公局第五工程有限公司 | Suitable for the curve and in length and breadth bridge construction thrustor on slope |
| CN111206512A (en) * | 2018-11-21 | 2020-05-29 | 江苏城乡建设职业学院 | Rotary hydraulic bridge incremental launching construction device |
| CN112709138A (en) * | 2020-12-16 | 2021-04-27 | 东南大学 | Self-adaptive variable-angle contact device and contact method of walking machine |
| CN114703764A (en) * | 2022-06-07 | 2022-07-05 | 中铁三局集团有限公司 | Construction method for leveling and shifting high-speed rail inclined box girder |
-
2017
- 2017-11-17 CN CN201721536868.9U patent/CN207419280U/en active Active
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111206512A (en) * | 2018-11-21 | 2020-05-29 | 江苏城乡建设职业学院 | Rotary hydraulic bridge incremental launching construction device |
| CN111206512B (en) * | 2018-11-21 | 2024-01-30 | 江苏城乡建设职业学院 | Rotary hydraulic bridge pushing construction device |
| CN109930494A (en) * | 2019-04-11 | 2019-06-25 | 中交二公局第五工程有限公司 | Suitable for the curve and in length and breadth bridge construction thrustor on slope |
| CN109930494B (en) * | 2019-04-11 | 2024-03-26 | 中交二公局第五工程有限公司 | Bridge construction pushing device suitable for curves and longitudinal and transverse slopes |
| CN112709138A (en) * | 2020-12-16 | 2021-04-27 | 东南大学 | Self-adaptive variable-angle contact device and contact method of walking machine |
| CN114703764A (en) * | 2022-06-07 | 2022-07-05 | 中铁三局集团有限公司 | Construction method for leveling and shifting high-speed rail inclined box girder |
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