CN209066250U - Scalable inverted arch trestle - Google Patents
Scalable inverted arch trestle Download PDFInfo
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- CN209066250U CN209066250U CN201821745598.7U CN201821745598U CN209066250U CN 209066250 U CN209066250 U CN 209066250U CN 201821745598 U CN201821745598 U CN 201821745598U CN 209066250 U CN209066250 U CN 209066250U
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- inverted arch
- trestle
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Abstract
The utility model belongs to tunnel trestle technical field, discloses a kind of scalable inverted arch trestle.It is mainly characterized in that including back pedal, connection pontic and front pedal, connecting pontic includes left girder, right girder, front beam, rear cross beam and attachment beam, front pedal is located above the attachment beam, is connected between front pedal and the attachment beam by push-pull mechanism.The support of preceding branch is placed in the inverted arch initially dug first, trestle rear-wheel is placed on ready-made smooth-riding surface, inverted arch is first dug into forward a distance, front pedal is forward extended out to the front for correcting before making front pedal and being overlapped on inverted arch, material in front of inverted arch is transported outward by front pedal, connection pontic and back pedal, after a distance is dug forward in tunnel, front pedal is retracted, inverted arch is excavated forward in continuation, then front pedal is stretched out rides over the front end of front pedal again in front of inverted arch, accelerates construction speed；The cement solidification time attains full and complete satisfaction, and improves construction quality.
Description
Technical field
The utility model belongs to trestle technical field more particularly to a kind of scalable inverted arch trestle.
Background technique
With the rapid development of our country's economy, China's items infrastructure be also evolving and improve due to landform,
Domain is more complicated, just needs to build a large amount of tunnels when building the infrastructure such as highway, railway to meet production and life and require.
In constructing tunnel, in order to shorten the construction period, while excavation in front of tunnel, tunnel bottom needs to carry out concrete lining, but
It excavates the earthwork generated or stone is needed by just transporting tunnel in the tunnel construction sections of lining cutting, therefore developed tunnel trestle and come in fact
The transportation problem of existing concrete lining section.Construction inverted arch big to driving interference is always to fail to solve very well in domestic constructing tunnel
A great problem, most of constructing tunnels are applied or the method for simple trestle carries out inverted arch construction using half side.Existing stack
Bridge includes that back pedal, connection pontic and front pedal, the connection pontic include left girder, right girder, front beam, rear cross beam and company
Connect beam, be provided with front support leg below the front beam, be provided with trestle rear-wheel below the rear cross beam, front pedal, after
Pedal all with connect pontic and fix, one section (generally 3 meters) of every excavation, it is necessary to move forward a trestle, the above method is deposited
In following defect: first, each work surface all stops operation, and affects construction speed, extends construction when trestle moves forward
Duration；Second, the back pedal due to trestle is located on the smooth-riding surface being ready for, due to using advanced excavating machinery, dig
Driving degree is very fast, excavates 3 meters of inverted arch times and greatly shortens, but cement solidification needs the time long, needs the cement at trestle rear
Trestle could be moved forward after being cured, at trestle rear when cement solidification, various processes, which are all stopped, waits cement solidifications.
Utility model content
Just to be to provide that a kind of construction speed is fast, construction quality is high scalable faces upward for the technical problems to be solved in the utility model
Encircle trestle.
To solve the above problems, the technical solution that the scalable inverted arch trestle of the utility model uses are as follows: including back pedal, even
Pontic and front pedal are connect, the connection pontic includes left girder, right girder, front beam, rear cross beam and attachment beam, in the preceding cross
It is provided with front support leg below beam, trestle rear-wheel is provided with below the rear cross beam, the front pedal is located at the attachment beam
Top is connected between the front pedal and the attachment beam by push-pull mechanism.
Its additional technical feature are as follows:
The push-pull mechanism includes the roller frame close to the front beam front end, is provided on the roller frame and power horse
Up to the roller of connection, it is provided with upper top oil cylinder below the roller frame, mandril and the fixed company of the roller frame of oil cylinder are pushed up on this
It connects, top oil cylinder is fixed with the front beam on this, and the front pedal is located above the roller.
Scalable inverted arch trestle provided by the utility model compared with prior art, have the advantage that first, due to
It include left girder, right girder, front beam, rear cross beam and connection including back pedal, connection pontic and front pedal, the connection pontic
Beam is provided with front support leg below the front beam, and trestle rear-wheel, the front pedal position are provided with below the rear cross beam
Above the attachment beam, between the front pedal and the attachment beam by push-pull mechanism connect, construction when, first will before
Branch support is placed in the inverted arch initially dug, and trestle rear-wheel is placed on ready-made smooth-riding surface, forward by inverted arch first
3 meters are dug, front pedal is forward extended out 3 meters, the front end of front pedal is placed exactly in the front of inverted arch, before the material in front of inverted arch passes through
Pedal, connection pontic and back pedal transport outward, and after a distance is dug forward in tunnel, front pedal is retracted, and continue forward
3 meters of inverted arch to be excavated, front pedal is then stretched out 6 meters, the front end of front pedal is ridden over again in front of inverted arch, continue tunneling, and
The operations such as casting concrete can also be carried out to subsequent inverted arch, 17 meters of front pedal overall length, final extension elongation is 12 meters, inverted arch
Every 3 meters, to previous digging, are pushed away with this example, and after the entire 12 meters of strokes of front pedal are covered, front pedal is all withdrawn, and trestle is whole to Forward
12 meters dynamic, the mobile number of trestle reduces 3 times or more, and traveling time greatly shortens, and accelerates construction speed, shortens construction work
Phase；The cement solidification time attains full and complete satisfaction, and improves construction quality；Second, since the push-pull mechanism includes close to described
The roller frame of front beam front end is provided with the roller connecting with power motor on the roller frame, is arranged below the roller frame
There is upper top oil cylinder, the mandril that oil cylinder is pushed up on this is fixedly connected with the roller frame, and top oil cylinder is fixed with the front beam on this, institute
It states front pedal to be located above the roller, when pedal moves forward or back before necessary, upper top oil cylinder mandril be stretched out, roller frame band
Dynamic roller rises to above attachment beam, and front pedal slides on a rolle, and reduces resistance to sliding and the mill to attachment beam and front pedal
Damage, behind in-position, the mandril retraction of upper top oil cylinder, front pedal rear end is contacted with attachment beam, and stability is good, avoids pressure
Power is excessive to cause roller and upper top oil cylinder impaired, more convenient to use.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the scalable inverted arch trestle of the utility model；
Fig. 2 is enlarged drawing at A in Fig. 1；
Fig. 3 is the lateral plan of scalable inverted arch trestle；
Fig. 4 is enlarged drawing at B in Fig. 2；
Fig. 5 is the front view of scalable inverted arch trestle.
Specific embodiment
With reference to the accompanying drawings and detailed description the structure to the scalable inverted arch trestle of the utility model and use principle
It is described in further details.
As shown in Figure 1, Figure 2, shown in Fig. 3, Fig. 4 and Fig. 5, the structural schematic diagram of the scalable inverted arch trestle of the utility model, this reality
It include back pedal 1, connection pontic 2 and front pedal 3 with Novel stretchable inverted arch trestle, connection pontic 2 includes left girder 4, right master
Beam 5, front beam 6, rear cross beam 7 and attachment beam 8, are provided with front support leg 9 below front beam 6, are provided with below rear cross beam 7
Trestle rear-wheel 10, the rear of front pedal 3 are located at 8 top of attachment beam, are connected between front pedal 3 and attachment beam 8 by push-pull mechanism 11.
Front pedal 3 can be moved forward and backward above attachment beam 8.
In construction, preceding branch support 9 is placed in the inverted arch initially dug first, trestle rear-wheel 10, which is placed on, have been done
On good smooth-riding surface, inverted arch is first dug forward to 3 meters, front pedal 3 is forward extended out 3 meters, the front end of front pedal 3, which is placed exactly in, faces upward
The front of arch, the material in front of inverted arch are transported outward by front pedal 3, connection pontic 2 and back pedal 1, are dug forward in tunnel
After a distance, front pedal 3 is retracted, continues to excavate 3 meters of inverted arch forward, front pedal 3 is then stretched out 6 meters, before front pedal 3
End is ridden over again in front of inverted arch, continues tunneling, but also can carry out the operations such as casting concrete to subsequent inverted arch.Former riding
Plate overall length can be designed as 17 meters, and final extension elongation is 12 meters, and every 3 meters of inverted arch, to previous digging, are pushed away, front pedal is entire with this example
After 12 meters of strokes are covered, front pedal is all withdrawn, and trestle integrally moves forward 12 meters, and the mobile number of trestle reduces 3 times or more, is moved
The dynamic time greatly shortens, and accelerates construction speed, shortens the construction period；The cement solidification time attains full and complete satisfaction, and improves
Construction quality.
As shown in Fig. 2, Fig. 3, Fig. 4 and Fig. 5, push-pull mechanism 11 includes the roller frame 12 close to 6 front end of front beam, in the rolling
It is provided with the roller 14 connecting with power motor 13 in tub 12, upper top oil cylinder 15 is provided with below the roller frame 12, on this
The mandril 16 of top oil cylinder 15 is fixedly connected with roller frame 12, and top oil cylinder 15 and front beam 6 are fixed on this, and front pedal 3 is located at roller
14 tops.When pedal 3 moves forward or back before necessary, the mandril 16 of upper top oil cylinder 15 is stretched out, roller frame 12 drives roller 14
It rising to above attachment beam, front pedal 3 slides on roller 14, reduce resistance to sliding and the abrasion to attachment beam and front pedal,
Behind in-position, the mandril 16 of upper top oil cylinder 15 bounces back, and front pedal rear end is contacted with attachment beam, and stability is good, avoids
Pressure is excessive to cause roller and upper top oil cylinder impaired, more convenient to use.
The protection scope of the utility model is not limited solely to above-described embodiment, as long as structure is scalable with the utility model
Inverted arch trestle structure is same or similar, just falls in the range of the utility model protection.
Claims (2)
1. scalable inverted arch trestle, including back pedal, connection pontic and front pedal, the connection pontic include left girder, right master
Beam, front beam, rear cross beam and attachment beam are provided with front support leg below the front beam, are arranged below the rear cross beam
There is trestle rear-wheel, it is characterised in that: the front pedal is located above the attachment beam, between the front pedal and the attachment beam
It is connected by push-pull mechanism.
2. scalable inverted arch trestle according to claim 1, it is characterised in that: the push-pull mechanism includes before described
The roller frame of crossbeam front end is provided with the roller connecting with power motor on the roller frame, is provided with below the roller frame
Upper top oil cylinder, the mandril that oil cylinder is pushed up on this are fixedly connected with the roller frame, and top oil cylinder is fixed with the front beam on this, described
Front pedal is located above the roller.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821745598.7U CN209066250U (en) | 2018-10-26 | 2018-10-26 | Scalable inverted arch trestle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821745598.7U CN209066250U (en) | 2018-10-26 | 2018-10-26 | Scalable inverted arch trestle |
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| Publication Number | Publication Date |
|---|---|
| CN209066250U true CN209066250U (en) | 2019-07-05 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201821745598.7U Active CN209066250U (en) | 2018-10-26 | 2018-10-26 | Scalable inverted arch trestle |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109183601A (en) * | 2018-10-26 | 2019-01-11 | 河北创恒智能装备科技有限公司 | Telescopic intelligent multifunctional inverted arch trestle and the construction method with the trestle |
-
2018
- 2018-10-26 CN CN201821745598.7U patent/CN209066250U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109183601A (en) * | 2018-10-26 | 2019-01-11 | 河北创恒智能装备科技有限公司 | Telescopic intelligent multifunctional inverted arch trestle and the construction method with the trestle |
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