CN201933413U - Highly efficient variable-span transporting type lower guide girder machine - Google Patents
Highly efficient variable-span transporting type lower guide girder machine Download PDFInfo
- Publication number
- CN201933413U CN201933413U CN2010206876717U CN201020687671U CN201933413U CN 201933413 U CN201933413 U CN 201933413U CN 2010206876717 U CN2010206876717 U CN 2010206876717U CN 201020687671 U CN201020687671 U CN 201020687671U CN 201933413 U CN201933413 U CN 201933413U
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- nose girder
- rear support
- support leg
- lower guide
- machine
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Abstract
A highly efficient variable-span transporting type lower guide girder machine belongs to lower guide girder machines for high-speed railway bridge erection machines. A guide girder mechanism mainly comprises a lower guide girder machine, a lower guide girder rear support leg, an oblique brace and a lower guide girder front support leg, wherein the lower guide girder rear support leg is connected to the bottom face of one end of the lower guide girder machine, the oblique brace is connected between the lower guide girder machine and the lower guide girder rear support leg, the lower guide girder front support leg is connected to the bottom face of the other end of the lower guide girder machine, and a winch is connected to the interior of the lower guide girder machine and connected with the lower guide girder machine front support leg and the lower guide girder rear support leg through a steel wire rope. The highly efficient variable-span transporting type lower guide girder machine has the advantages that girder feeding before and after the tunnel, passing through the span and quick passing through the tunnel of a fixed-point lifting type lower girder machine can be achieved, the highly efficient variable-span transporting type lower guide girder machine is provided for construction of high-speed railway, operation of a tail hole in the front of the tunnel and a first hole in the rear of the tunnel can be achieved, erection of high-speed railway box girders passing through complex-terrain sections such as tunnels is achieved, changing span of the tail hole in the front of the tunnel is achieved quickly.
Description
Technical field
The utility model relates to the following nose girder machine that a kind of high-speed railway bridge formation machine uses, and particularly a kind of efficient change strides across nose girder machine under the tunnel type.
Background technology
At present, the traditional bridge formation of tunnel type excessively machine is packed by wheeled Beam transportation vehicle usually and is passed through the tunnel, in the process nose girder dismounting back split is transported, especially before setting up the tunnel behind last hole beam and the tunnel during the first hole beam operation loaded down with trivial details, before advancing tunnel nose girder is packed up, and after going out tunnel, reinstall nose girder, had a strong impact on tunnel and overall operation efficient.
Existing bridge formation machine, traditional change mode of striding is to finish by nose girder overhead traveling crane lifting displacement after the nose girder via hole stage, finishes by adjusting nose girder front leg strut link position, needs the dismounting front leg strut, front leg strut is hung and finish displacement on girder, needs auxiliary support oil cylinder lift adjustment height of landing leg in addition.In the process, the installation of front leg strut has the certain difficulty degree, has reduced and has become the whole efficiency of striding, and on the other hand, the lift in height in the installation has increased danger coefficient.
The utility model content
The purpose of this utility model is to provide a kind of efficient change to stride across nose girder machine under the tunnel type, and solution before advancing tunnel is packed up nose girder, and reinstalls nose girder after going out tunnel, has a strong impact on the problem of tunnel and overall operation efficient.
The purpose of this utility model is achieved in that this nose girder mechanism is mainly by nose girder machine, lower nose girder rear support leg, bearing diagonal and following nose girder front leg strut are formed down, on a bottom face of following nose girder machine, connect lower nose girder rear support leg, be connected with bearing diagonal between nose girder machine and the lower nose girder rear support leg down, nose girder front leg strut under connecting on the other end bottom surface of following nose girder machine, be connected with hoist engine in the nose girder machine down, hoist engine is connected with the back launching nose rear support leg with following nose girder front leg strut by wire rope.
Described nose girder machine down comprises first beam joint, second beam joint, the 3rd beam joint, the 4th beam joint, the 5th beam joint and hangs wing, first beam joint, second beam joint, the 3rd beam joint, the 4th beam joint and the 5th beam internode use strengthening stud to be linked in sequence, and are connected with in the end of first beam joint and hang wing.
Described nose girder rear support leg is made up of joint and nose girder rear support leg top rail on joint, the nose girder rear support leg under nose girder rear support leg ball pivot seat, nose girder rear support leg link, the nose girder rear support leg; On the bottom surface of nose girder rear support leg link two ends, be connected with nose girder rear support leg ball pivot seat, under the upper surface of nose girder rear support leg link two ends respectively has been linked in sequence nose girder rear support leg, save on joint and the nose girder rear support leg, between the upper end of saving on two nose girder rear support legs, be connected with the nose girder rear support leg top rail.
Described nose girder front leg strut comprises under the nose girder front leg strut joint, nose girder front leg strut top rail, nose girder front leg strut link and nose girder front leg strut ball pivot seat on joint, the nose girder front leg strut, on the bottom surface of nose girder front leg strut link two ends, be connected with nose girder front leg strut ball pivot seat, under the upper surface of nose girder front leg strut link two ends respectively has been linked in sequence the nose girder front leg strut, save on joint and the nose girder front leg strut, between the upper end of saving on two nose girder front leg struts, be connected with the nose girder rear support leg top rail.
Beneficial effect, owing to adopted such scheme, each beam joint of following nose girder machine adopts the rectangular box girder construction, load is stable, reduces distortion to greatest extent; Reasonable distribution beam joint length, the dismounting by the beam joint realize that fast the change that stride at the end before the tunnel strides task.In following nose girder machine upper surface track is set, after Beam transportation vehicle docks, finishes feeding beam, in addition, can be used as auxiliary supporting leg walking rails for hunchbacked beam carriage walking; Following nose girder machine bilateral is provided with ear formula track structure, and the underlying track has increased auxiliary supporting leg walking stability, has improved the safety of via hole operation.
Hang wing and adopt collapsible design, when crossing tunnel, obviously reduce the disassemble and assemble work amount, increase work efficiency.The built-in elevator of following nose girder machine by the design wiring, utilizes an elevator to finish down the action of packing up of nose girder front leg strut and lower nose girder rear support leg.
Following nose girder front leg strut and lower nose girder rear support leg all adopt ball hinged support, have strengthened time nose girder machine when feeding beam, the stability under the heavy duty; Nose girder front leg strut and nose girder rear support leg inside and outside sleeve binodal structure adopt the pin formula to fix, and oil cylinder all is installed, but quick-expansion changes height; Nose girder rear support leg adopts bolt to connect, and is aided with bearing diagonal, has realized that stable solidity connects, and the nose girder front leg strut adopts articulated structure, and the firm Rational structure in gentle back before having finished can absorb nose girder heavy duty distortion down to greatest extent.
Before having solved tunnel nose girder is packed up, and after going out tunnel, reinstalled nose girder, had a strong impact on the problem of tunnel and overall operation efficient, reached the purpose of this utility model.
Advantage: feeding beam behind the tunnel before the tunnel of nose girder machine under the hanging of can realizing having fixed a point, via hole operation and fast by the tunnel, for providing a kind of tunnel molding box roof beam structure of crossing efficiently, the high-speed railway construction establishes with nose girder mechanism down; Can finish the first hole operation behind the last hole and tunnel before the tunnel, realize passing through setting up of complex-terrain highway section high speed railway box girder such as tunnel.The forward and backward supporting leg of nose girder by hanger and flanged plate, is realized flexible and is rigidly connected respectively and between nose girder.Can realize fast that the change in last hole is striden before the tunnel.Can realize the jackknife action before the tunnel fast, finish the tunnel action.Forward and backward leg mechanism of nose girder by the built-in elevator of nose girder, finished the jackknife action of packing up of tunnel state.
Description of drawings
Fig. 1 is that nose girder machine structure is always schemed down.
Fig. 2 is following nose girder machine structure vertical view.
Fig. 3 is the nose girder rear support leg structure chart.
Fig. 4 is a nose girder front leg strut structure chart.
Fig. 5 is that the nose girder machine is crossed the tunnel view down.
Among the figure, 1, following nose girder machine; 2, following nose girder front leg strut; 3, bearing diagonal; 4, lower nose girder rear support leg; 5, hang wing; 6, first beam joint; 7, second beam joint; 8, the 3rd beam joint; 9, the 4th beam joint; 10, the 5th beam joint; 11, nose girder rear support leg ball pivot seat; 12, nose girder rear support leg link; 13, nose girder rear support leg saves down; 14, save on the nose girder rear support leg; 15, nose girder rear support leg top rail; 16, the nose girder front leg strut saves down; 17, save on the nose girder front leg strut; 18, nose girder front leg strut top rail; 19, nose girder front leg strut link; 20, nose girder front leg strut ball pivot seat.
The specific embodiment
Embodiment 1: this nose girder mechanism is mainly by nose girder machine 1, lower nose girder rear support leg 4, bearing diagonal 3 and following nose girder front leg strut 2 are formed down, on a bottom face of following nose girder machine 1, connect lower nose girder rear support leg 4, be connected with bearing diagonal 3 between nose girder machine 1 and the lower nose girder rear support leg 4 down, nose girder front leg strut 2 under connecting on the other end bottom surface of following nose girder machine 1, be connected with hoist engine in the nose girder machine 1 down, hoist engine is connected with back launching nose rear support leg 4 with following nose girder front leg strut 2 by wire rope.
Described nose girder machine down comprises first beam joint, 6, second beam joint the 7, the 3rd beam joint the 8, the 4th beam joint the 9, the 5th beam joint 10 and hangs wing 5,10 at first beam joint, 6, second beam joint the 7, the 3rd beam joint the 8, the 4th beam joint the 9 and the 5th beam joint uses strengthening stud to be linked in sequence, and is connected with in the end of first beam joint 6 and hangs wing 5.
Described nose girder rear support leg is made up of joint 14 and nose girder rear support leg top rail 15 on joint 13, the nose girder rear support leg under nose girder rear support leg ball pivot seat 11, nose girder rear support leg link 12, the nose girder rear support leg; On the bottom surface of nose girder rear support leg link 12 2 ends, be connected with nose girder rear support leg ball pivot seat 11, under the upper surface of nose girder rear support leg link 12 2 ends respectively has been linked in sequence nose girder rear support leg, save 14 on joint 13 and the nose girder rear support leg, between the upper end of joint 14 on two nose girder rear support legs, be connected with nose girder rear support leg top rail 15.
Described nose girder front leg strut comprise under the nose girder front leg strut save 17 on joint 16, the nose girder front leg strut, nose girder front leg strut top rail 18, nose girder front leg strut link 19 and nose girder front leg strut ball pivot seat 20, on the bottom surface of nose girder front leg strut link 19 2 ends, be connected with nose girder front leg strut ball pivot seat 20, under the upper surface of nose girder front leg strut link 19 2 ends respectively has been linked in sequence the nose girder front leg strut, save 17 on joint 16 and the nose girder front leg strut, between the upper end of joint 17 on two nose girder front leg struts, be connected with nose girder rear support leg top rail 18.
Among Fig. 1, following nose girder machine structure is by nose girder machine 1, nose girder rear support leg 4 and nose girder front leg strut 2 are formed down.
Among Fig. 2, following nose girder machine saves the 9, the 5th beam joint 10 by first beam joint, 6, second beam joint the 7, the 3rd beam joint the 8, the 4th beam and hangs wing 5 and form, and each beam internode adopts bolt to connect; Hang wing and be divided into two joints, cardinal extremity connects nose girder box body down by welding manner, and front end is formed overall structure by the bolted flange plate.Each beam joint upside and both sides are provided with track respectively, and the assembling back forms the long track of top camel beam dolly; After auxiliary supporting leg is installed, its running mechanism is set in down the nose girder machine respectively gets on the right track and the use of side lower railway.Last hole is set up and is become when striding before running into the tunnel, and fast quick-detach the 3rd beam joint 8 can realize that 24m sets up; Continue dismounting second beam joint 7, can realize that then 20m sets up.
Among Fig. 3, nose girder rear support leg 4 comprises that ball pivot seat 11, supporting leg save 14 down on joint 13, the supporting leg, bearing diagonal 3, link 12 and top rail 15.In the duty, ball pivot seat 11 drops on the bridge pier upper end, plays a supportive role the globular hinge face in its structure, but the out-of-level amount that a certain amount of abutment surface of adequate compensation causes; Last joint flanged plate connects by bolt, is cemented in down on the nose girder box body.Highly adjusting, flexible by the oil cylinder between link and top rail, joint lifting under driving, the position of bearing pin is inserted in change simultaneously, and the length of joint 13 and bearing diagonal 3 is finished the variation of nose girder rear support leg 4 height under changing.
Among Fig. 3, nose girder front leg strut 2 by spherical free bearing 20, supporting leg save 17 down on joint 16, the supporting leg, link 19 and top rail 18 form.Under the duty, ball pivot seat 20 drops on the bridge pier upper end, plays a supportive role; Last joint 17 hangers form pin with following nose girder machine hanger and are connected, and composition flexibly connects.Nose girder front leg strut 2 is highly regulated, and is flexible by the oil cylinder between link and top rail, drives joint lifting down, changes the position of inserting bearing pin simultaneously, finishes height change.
Among Fig. 5, nose girder is placed on the low level transportation crossing under the tunnel state, finish by folding nose girder rear support leg and nose girder front leg strut, and folding power is provided by a built-in elevator of nose girder, is delivered to nose girder rear support leg and nose girder front leg strut respectively by fixed pulley, and pulling is folding.Hang wing and connect,, finish jackknife action, reached the tunnel width by nose girder loop wheel machine driven rotary by opening flange.
Claims (4)
1. an efficient change strides across nose girder machine under the tunnel type, it is characterized in that: this nose girder mechanism is mainly by nose girder machine, lower nose girder rear support leg, bearing diagonal and following nose girder front leg strut are formed down, on a bottom face of following nose girder machine, connect lower nose girder rear support leg, be connected with bearing diagonal between nose girder machine and the lower nose girder rear support leg down, nose girder front leg strut under connecting on the other end bottom surface of following nose girder machine, be connected with hoist engine in the nose girder machine down, hoist engine is connected with the back launching nose rear support leg with following nose girder front leg strut by wire rope.
2. efficient change according to claim 1 strides across nose girder machine under the tunnel type, it is characterized in that: described nose girder machine down comprises first beam joint, second beam joint, the 3rd beam joint, the 4th beam joint, the 5th beam joint and hangs wing, first beam joint, second beam joint, the 3rd beam joint, the 4th beam joint and the 5th beam internode use strengthening stud to be linked in sequence, and are connected with in the end of first beam joint and hang wing.
3. efficient change according to claim 1 strides across nose girder machine under the tunnel type, it is characterized in that: described nose girder rear support leg is made up of joint and nose girder rear support leg top rail on joint, the nose girder rear support leg under nose girder rear support leg ball pivot seat, nose girder rear support leg link, the nose girder rear support leg; On the bottom surface of nose girder rear support leg link two ends, be connected with nose girder rear support leg ball pivot seat, under the upper surface of nose girder rear support leg link two ends respectively has been linked in sequence nose girder rear support leg, save on joint and the nose girder rear support leg, between the upper end of saving on two nose girder rear support legs, be connected with the nose girder rear support leg top rail.
4. efficient change according to claim 1 strides across nose girder machine under the tunnel type, it is characterized in that: described nose girder front leg strut comprises under the nose girder front leg strut joint, nose girder front leg strut top rail, nose girder front leg strut link and nose girder front leg strut ball pivot seat on joint, the nose girder front leg strut, on the bottom surface of nose girder front leg strut link two ends, be connected with nose girder front leg strut ball pivot seat, under the upper surface of nose girder front leg strut link two ends respectively has been linked in sequence the nose girder front leg strut, save on joint and the nose girder front leg strut, between the upper end of saving on two nose girder front leg struts, be connected with the nose girder rear support leg top rail.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206876717U CN201933413U (en) | 2010-12-30 | 2010-12-30 | Highly efficient variable-span transporting type lower guide girder machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206876717U CN201933413U (en) | 2010-12-30 | 2010-12-30 | Highly efficient variable-span transporting type lower guide girder machine |
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| Publication Number | Publication Date |
|---|---|
| CN201933413U true CN201933413U (en) | 2011-08-17 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010206876717U Expired - Lifetime CN201933413U (en) | 2010-12-30 | 2010-12-30 | Highly efficient variable-span transporting type lower guide girder machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201933413U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103422439A (en) * | 2013-07-25 | 2013-12-04 | 河北工业大学 | Lower guide beam bridge girder erection machine and method for complete machine passing through tunnel |
| CN103437290A (en) * | 2013-07-25 | 2013-12-11 | 河北工业大学 | Folding lower guide beam |
| CN107972641A (en) * | 2017-12-26 | 2018-05-01 | 徐工集团工程机械有限公司 | hydraulic leg mechanism and engineering machinery |
| CN113216001A (en) * | 2021-05-25 | 2021-08-06 | 白海龙 | Supporting leg structure for erecting bridge in bridge girder erection machine tunnel |
-
2010
- 2010-12-30 CN CN2010206876717U patent/CN201933413U/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103422439A (en) * | 2013-07-25 | 2013-12-04 | 河北工业大学 | Lower guide beam bridge girder erection machine and method for complete machine passing through tunnel |
| CN103437290A (en) * | 2013-07-25 | 2013-12-11 | 河北工业大学 | Folding lower guide beam |
| CN103422439B (en) * | 2013-07-25 | 2015-11-11 | 河北工业大学 | Tunnel approach crossed by a kind of lower nose girder bridge-erecting machine and complete machine thereof |
| CN107972641A (en) * | 2017-12-26 | 2018-05-01 | 徐工集团工程机械有限公司 | hydraulic leg mechanism and engineering machinery |
| CN113216001A (en) * | 2021-05-25 | 2021-08-06 | 白海龙 | Supporting leg structure for erecting bridge in bridge girder erection machine tunnel |
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Legal Events
| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20110817 |