CN203625787U - Launching nose supporting leg for long-span rapid bridge - Google Patents
Launching nose supporting leg for long-span rapid bridge Download PDFInfo
- Publication number
- CN203625787U CN203625787U CN201320718374.8U CN201320718374U CN203625787U CN 203625787 U CN203625787 U CN 203625787U CN 201320718374 U CN201320718374 U CN 201320718374U CN 203625787 U CN203625787 U CN 203625787U
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- CN
- China
- Prior art keywords
- oil cylinder
- guide pillar
- piston rod
- cylinder
- guide
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- 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.)
- Withdrawn - After Issue
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Abstract
The utility model discloses a launching nose supporting leg for a long-span rapid bridge, which consists of an oil cylinder bracket, a guide cylinder, an oil cylinder, a guide pillar assembly, a base plate and connecting cover boards. The oil cylinder bracket is welded at the end part of a launching nose; the oil cylinder bracket is provided with three mounting holes in the up-and-down direction; the oil cylinder is mounted in the middle mounting hole of the oil cylinder bracket; guide pillars of the guide pillar assembly are mounted in the mounting holes of the oil cylinder bracket on both sides through the guide cylinder; the upper parts of pillar ends of the guide pillar assembly are hinged to the piston rod end of the oil cylinder; the lower ends of the pillar ends of the guide pillar assembly are hinged to the base plate by the connecting cover boards; when a piston rod of the oil cylinder extends out, the guide pillar assembly extends out together; and when the piston rod of the oil cylinder is stressed, the guide pillar assembly is stressed together, so that the piston rod of the oil cylinder is protected. The launching nose supporting leg has the characteristics of compact structure and large stress, can be installed in a very small space, can meet the requirement of passing through an erecting mechanism without generating interference in the erecting process, and cannot damage the oil cylinder and the piston rod of the oil cylinder under a certain pressure and buckling load.
Description
Technical field
The utility model relates to the nose girder supporting leg of the quick bridge of a kind of large span, is particularly transported by special-purpose vehicle and sets up by nose girder, has the nose girder supporting leg of the motor-driven quick bridge of large span of following character.
Background technology
Along with the development of bridge technology and the requirement of bridge erection rapidity, the erection technique that bridge and nose girder can relative slidings arises at the historic moment.
In the erection process of above-mentioned long-span bridge, erecting device promotes spanning and slides to opposite bank by the slideway of nose girder, and for avoiding bridge damage with ground friction on the opposite bank and guarantee the transverse horizontal of spanning, nose girder end need arrange the supporting leg of certain altitude.This supporting leg is except requiring to bear the weight of spanning and nose girder, and setting up while having certain angle, also requirement can be born certain moment of flexure.But, limit by structure, nose girder end space Shan is little, and larger oil cylinder cannot be installed.For this reason, need to design a kind of nose girder supporting leg that can adapt to above-mentioned condition and there is special construction.
Utility model content
The purpose of this utility model is to solve the problems of the technologies described above, and provides a kind of different from from other supporting leg Shan little space, the quick bridge nose girder of large span end, overcomes a kind of nose girder supporting leg of bridge deadweight and bridge formation moment of flexure.
The utility model is achieved through the following technical solutions: the nose girder supporting leg of the quick bridge of a kind of large span is made up of cylinder bracket, guide cylinder, oil cylinder, guide pillar assembly, plinth plate and connection cover plate.
Cylinder bracket is made up of support and top board, and the top board of cylinder bracket and support are provided with the installation through hole of oil cylinder and guide cylinder, and cylinder bracket is installed on the end of the quick bridge nose girder of large span; Guide cylinder comprises steel pipe and axle sleeve, is installed in the top board of cylinder bracket and the through hole of support, and the upper end of steel pipe and the top board of cylinder bracket are welded and fixed, and the frame bottom of lower end and cylinder bracket is welded and fixed, and axle sleeve is loaded on steel duct; Oil cylinder is installed in the top board and support intermediate throughholes of cylinder bracket, fixes by the frame bottom of bolt and cylinder bracket; Guide pillar assembly is made up of guide pillar and guide pillar end, and the guide pillar end top of guide pillar assembly is provided with oval hole, and bottom is bulb; In the middle of plinth plate, be provided with interior ball seat; The guide pillar end top of guide pillar assembly is connected with bearing pin with the piston rod of oil cylinder; The bottom bulb of the guide pillar end of guide pillar assembly is connected into spherical hinge by the interior ball seat that connects cover plate and bolt and plinth plate.
On cylinder piston rod, be provided with circular hole, piston rod end is hemispherical, and bearing pin connects both through the oval hole on the guide pillar end of the circular hole on cylinder piston rod and guide pillar assembly.Plinth plate both sides are provided with paired V-arrangement link stopper, for stoping plinth plate to rotate around spherical hinge relative to the guide pillar end of guide pillar assembly under retracted state.
Be installed under the effect of the hydraulic hand-pump on nose girder, in the time that cylinder piston rod stretches out, guide pillar assembly stretches out together; While causing cylinder piston rod to bear moment of flexure because the relative plinth plate of oil cylinder piston rod axis is angled in the time building bridge, guide pillar assembly is stressed together, thereby has protected cylinder piston rod.
The advantage of the quick bridge nose girder of a kind of large span of the present utility model supporting leg is: it has the stressed large feature of compact conformation, can be in very little space mounting, in erection process, the requirement not interfering by erecting device be can meet, oil cylinder and piston rod thereof under certain pressure and bending load, do not damaged.
Accompanying drawing explanation
Fig. 1: the nose girder supporting leg of the quick bridge of a kind of large span of the utility model stretches out view;
Fig. 2: the nose girder supporting leg retracted state schematic diagram of the quick bridge of a kind of large span of the utility model;
Fig. 3: the nose girder support oil cylinder support schematic diagram of the quick bridge of a kind of large span of the utility model;
Fig. 4: the nose girder supporting leg guide pillar assembly schematic diagram of the quick bridge of a kind of large span of the utility model;
Fig. 5: the nose girder supporting leg Plane Installation schematic diagram of the quick bridge of a kind of large span of the utility model.
The specific embodiment
Below in conjunction with accompanying drawing, the utility model is described in further detail:
As shown in Figure 1, Figure 2, Figure 3, Figure 4, cylinder bracket 1 is made up of support 11 and top board 8, is provided with the installation through hole of oil cylinder 3 and guide cylinder 2 at top board 8 and support 11, and cylinder bracket 1 is installed on the end of the quick bridge nose girder of large span; Guide cylinder 2 comprises steel pipe 9 and axle sleeve 10, is installed in the top board 8 of cylinder bracket 1 and the through hole of support 11, and the top board 8 of the upper end of steel pipe 9 and cylinder bracket 1 is welded and fixed, and support 11 bottom weldings of lower end and cylinder bracket 1 are fixed, and axle sleeve 10 is loaded on steel pipe 9 inside; Oil cylinder 3 is installed in the top board 8 of cylinder bracket 1 and the bottom intermediate throughholes of support 11, fixes by bolt 12 and support 11 bottoms of cylinder bracket 1; Guide pillar assembly 4 is made up of guide pillar 7 and guide pillar end 13, and guide pillar end 13 tops of guide pillar assembly 4 are provided with oval hole, and bottom is bulb; Plinth plate 5 is welded construction, and centre is provided with interior ball seat 15; The top of the guide pillar end 13 of guide pillar assembly 4 is connected with bearing pin 14 with the piston rod of oil cylinder 3; The bottom bulb of the guide pillar end 13 of guide pillar assembly 4 is connected and fixed globulate hinge by connecting cover plate 6 and bolt 16 and the interior ball seat 15 of plinth plate 5.Guide pillar assembly 4 not only can rotate relative to the interior ball seat 15 of plinth plate 5, and the axis of guide pillar assembly 4 relatively plinth plate 5 forms the angle of maximum 15 °, and satisfied difference is set up the demand in place.
On described oil cylinder 3 piston rods, be provided with circular hole, piston rod end is hemispherical, and bearing pin 14 connects both through the oval hole on the guide pillar end 13 of the circular hole on oil cylinder 3 piston rods and guide pillar assembly 4.Plinth plate 5 both sides are provided with paired V-arrangement link stopper 17, for stoping plinth plate 5 to rotate around spherical hinge relative to the guide pillar end 13 of guide pillar assembly 4 under retracted state.When supporting leg is by erecting device while bridge formation with assurance, do not produce interference.
As shown in Figure 5, nose girder end is dichotomous structure, and nose girder supporting leg is installed left and right both sides, nose girder end.
Under erected state, make the relative guide pillar end of oil cylinder axis of nose girder supporting leg and the spherical hinge of plinth plate rotate to an angle because nose girder and ground are angled, maximum angle rotatable is ± 15 °.
Claims (3)
1. the nose girder supporting leg of the quick bridge of large span, formed by cylinder bracket (1), guide cylinder (2), oil cylinder (3), guide pillar assembly (4), plinth plate (5) and connection cover plate (6), it is characterized in that: cylinder bracket (1) is made up of support (11) and top board (8), top board (8) and support (11) are provided with the installation through hole of oil cylinder (3) and guide cylinder (2), and cylinder bracket (1) is installed on the end of the quick bridge nose girder of large span; Guide cylinder (2) comprises steel pipe (9) and axle sleeve (10), be installed in the through hole of top board (8) and support (11), the upper end of steel pipe (9) and top board (8) are welded and fixed, and lower end and support (11) bottom welding is fixed, and axle sleeve (10) is loaded on steel pipe (9) inside; Oil cylinder (3) is installed in the intermediate throughholes of top board (8) and support (11), fixing with support (11) bottom by bolt (12); Guide pillar assembly (4) is made up of guide pillar (7) and guide pillar end (13), and guide pillar end (13) top is provided with oval hole, and bottom is bulb; In the middle of plinth plate, be provided with interior ball seat (15); The top of guide pillar end (13) is connected with the bearing pin for piston rod (14) of oil cylinder (3); The bottom bulb of guide pillar end (13) is connected and fixed globulate hinge by connecting cover plate (6) and bolt (16) and the interior ball seat (15) of plinth plate (5).
2. the nose girder supporting leg of the quick bridge of a kind of large span according to claim 1, it is characterized in that: on described oil cylinder (3) piston rod, be provided with circular hole, piston rod end is hemispherical, and bearing pin (14) connects both through the circular hole on oil cylinder (3) piston rod and the oval hole on guide pillar end (13).
3. the nose girder supporting leg of the quick bridge of a kind of large span according to claim 1, is characterized in that: plinth plate (5) both sides are provided with paired V-arrangement link stopper (17), for stoping plinth plate (5) to rotate around spherical hinge relative to guide pillar end (13) under retracted state.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320718374.8U CN203625787U (en) | 2013-11-15 | 2013-11-15 | Launching nose supporting leg for long-span rapid bridge |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320718374.8U CN203625787U (en) | 2013-11-15 | 2013-11-15 | Launching nose supporting leg for long-span rapid bridge |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203625787U true CN203625787U (en) | 2014-06-04 |
Family
ID=50812279
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320718374.8U Withdrawn - After Issue CN203625787U (en) | 2013-11-15 | 2013-11-15 | Launching nose supporting leg for long-span rapid bridge |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203625787U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104631339A (en) * | 2013-11-15 | 2015-05-20 | 湖北华舟重工应急装备股份有限公司 | Guide beam landing leg of long-span rapid bridge |
-
2013
- 2013-11-15 CN CN201320718374.8U patent/CN203625787U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104631339A (en) * | 2013-11-15 | 2015-05-20 | 湖北华舟重工应急装备股份有限公司 | Guide beam landing leg of long-span rapid bridge |
| CN104631339B (en) * | 2013-11-15 | 2016-05-04 | 湖北华舟重工应急装备股份有限公司 | The nose girder supporting leg of the quick bridge of a kind of large span |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20140604 Effective date of abandoning: 20160504 |
|
| C25 | Abandonment of patent right or utility model to avoid double patenting |