CN208545674U - A kind of large-tonnage rotator construction flexural pivot - Google Patents
A kind of large-tonnage rotator construction flexural pivot Download PDFInfo
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- CN208545674U CN208545674U CN201821050720.9U CN201821050720U CN208545674U CN 208545674 U CN208545674 U CN 208545674U CN 201821050720 U CN201821050720 U CN 201821050720U CN 208545674 U CN208545674 U CN 208545674U
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Abstract
A kind of large-tonnage rotator construction flexural pivot, lower spherical hinge structure are as follows: top surface is that the disk top surface of concave arc is fixed with a pin shaft, the circular concave of multiple concentric circles is evenly equipped on disk top surface, a steel ball is placed on each circular concave, each steel ball is covered with one and opens round-meshed steel plate thereon, alternatively, the piecemeal activity greater than radius of each steel ball is embedded in a circular concave, and the round upper opening diameter of the circular concave is less than steel ball diameter；Upper spherical hinge structure are as follows: the bottom surface of disk identical with lower flexural pivot disk diameter is outer convex, has a blind hole for supplying the pin shaft activity of lower flexural pivot to be inserted on the disk bottom surface and is provided with a plurality of annular groove for being formed corresponding to multiple steel balls of lower flexural pivot top surface and rolling cooperation.Upper and lower flexural pivot is mutually fixed with bridge pier and cushion cap respectively by rod iron when construction, forms rolling friction by flexural pivot.This flexural pivot has the features such as being skillfully constructed, structure is simple, and coefficient of friction is small, the rotator construction especially suitable for large-tonnage component.
Description
Technical field
The utility model relates to Bridge Rotation Construction Technique technical field, in particular to a kind of large-tonnage rotator construction flexural pivot.
Background technique
Bridge Rotation Construction Technique technique functions are got application in Arch Bridge Construction derived from Europe, and at first using vertical transfer method, then
Flat turn method is developed in succession and method that flat vertical transfer combines again, the bridge type suitable for rotator construction has arch bridge, beam bridge, rigid structure
Bridge and cable-stayed bridge.In recent years, China is inevitable in progress highway on a large scale and railway infrastructure construction, route design process
A reasonable construction method using rotator construction across existing highway and railway, especially across high-speed railway and
When highway, in order to not influence traffic normal operation and existing line foundation of road bed, also needed while using rotator construction
Minimum range of the pier location away from existing line roadbed is limited, this means that result is to turn using greatly across rotator construction
Body bridge develops towards large-tonnage and super-tonnage.
Flexural pivot is most important device in Bridge Rotation Construction Technique, is the combination of the support system and swing system of swivel structure
Body.Conventional flexural pivot carries out on-site consolidation using upper flexural pivot and lower flexural pivot currently on the market, and installation accuracy is necessarily by site operation
The influence of condition, environment temperature and humidity brings security risk to rotator construction.The lower flexural pivot of conventional flexural pivot currently on the market
By installing the sphere-contact of round nonmetallic slide plate and upper flexural pivot on spherical surface, tractive force size depends on turning weight when swivel
With the coefficient of sliding friction of nonmetallic slide plate, sliding confficient of static friction is 0.1 or so, has been difficult significantly to reduce the quiet of material and rub
Coefficient is wiped, directly limitation bridge rotating weight.
Utility model content
The purpose of this utility model in view of the problems of the existing technology propose one kind be able to bear large-tonnage component and
The small large-tonnage rotator construction flexural pivot of coefficient of friction.
Purpose of the utility model is realized as follows: a kind of large-tonnage rotator construction flexural pivot, lower spherical hinge structure are as follows: circle
The top surface of disk is concave arc, and disk end face center is fixed with a pin shaft, and is evenly equipped on disk top surface along multiple concentric circles
Multiple circular concaves are placed with a steel ball on each circular concave, are covered with one on each steel ball and are provided with circle thereon
The steel plate in hole, the diameter of the circular hole are less than the diameter of steel ball, alternatively, the piecemeal activity greater than radius of each steel ball is embedded in
In one circular concave, and the round upper opening diameter of the circular concave is less than steel ball diameter；Upper spherical hinge structure are as follows: disk
Diameter is identical as the disk diameter of lower flexural pivot, and the bottom surface of the disk is the outer convex to match with lower flexural pivot top surface, the disk
There is a blind hole being inserted into for the pin shaft activity of lower flexural pivot in bottom center, is provided on the disk bottom surface corresponding to the more of lower flexural pivot top surface
A concentric circles simultaneously forms a plurality of annular groove for rolling cooperation with steel ball.
It is used as when being fixed with construction on the top surface of the upper flexural pivot and the bottom surface of lower flexural pivot mutually solid with bridge pier and cushion cap respectively
The rod iron of connection；It is described that open round-meshed steel plate be a monolith steel plate for covering all steel balls.
There is the outwardly extending annulus of a circle on the adjacent surface periphery of the upper and lower flexural pivot respectively, it is uniformly distributed on two annulus
Have for bolted bolt hole.
The bolt hole is 8, and the radius of the steel ball is 3cm~6cm.
The upper and lower flexural pivot is the upper and lower flexural pivot of steel.
This large-tonnage rotator construction flexural pivot includes upper flexural pivot and lower flexural pivot；The upper flexural pivot lower end is convex spherical, institute
Stating lower flexural pivot upper end is concave spherical surface；The upper flexural pivot carries out assembling in factory with lower flexural pivot and edits, and is faced by bolt group
When fix；The upper flexural pivot and lower flexural pivot are made up of the rotating mechanism of flexural pivot pin shaft；The upper flexural pivot and lower flexural pivot pass through pre-
Rod iron is buried to be connected and fixed with bridge pier and cushion cap respectively；It is contacted between the upper flexural pivot and lower flexural pivot by steel ball group, makes flexural pivot
It is rolling friction when rotation.
Compared with prior art, this flexural pivot has the characteristics that and advantage:
1. being skillfully constructed, structure is simple, low manufacture cost.
It is contacted between flexural pivot and lower flexural pivot using steel ball group on 2., changing traditional sliding friction is rolling friction, tool
Have the advantages that bear large-tonnage and coefficient of friction is small；And upper and lower flexural pivot carries out assembling in factory and edits, and has structure precision high
The fast advantage with site construction.
The utility model makes to contact between flexural pivot and lower flexural pivot using steel ball group, changes traditional sliding friction as rolling
Dynamic friction has the advantages that bear large-tonnage and coefficient of friction is small；And upper and lower flexural pivot carries out assembling in factory and edits, and has knot
Structure precision height and the fast advantage of site construction.This flexural pivot when large-tonnage component rotator construction especially suitable for using.
Detailed description of the invention
Fig. 1 is the structural facades schematic diagram of rotator construction flexural pivot；
Fig. 2 is the upper end floor map of the lower flexural pivot of rotator construction flexural pivot；
Fig. 3 is the lower end plane schematic diagram of the upper flexural pivot of rotator construction flexural pivot；
Fig. 4 is the upper end schematic three dimensional views of the lower flexural pivot of rotator construction flexural pivot；
Fig. 5 is the lower end schematic three dimensional views of the upper flexural pivot of rotator construction flexural pivot.
Specific embodiment
Fig. 1 shows this large-tonnage rotator construction flexural pivot, lower 2 structure of flexural pivot are as follows: the top surface of disk is concave arc, disk
End face center is fixed with a pin shaft 6, and is evenly equipped with multiple circular concaves along multiple concentric circles on disk top surface, and each circle is recessed
It is placed with a steel ball 5 on face, one is covered on each steel ball 5 and opens round-meshed steel plate 7, the diameter of the circular hole thereon
Less than the diameter of steel ball 5, alternatively, the piecemeal activity greater than radius of each steel ball 5 is embedded in a circular concave, and should
The round upper opening diameter of circular concave is less than 5 diameter of steel ball, prevents steel ball from dropping out from circular concave；Upper flexural pivot
1 structure are as follows: the diameter of disk is identical as the disk diameter of lower flexural pivot, the bottom surface of the disk be match with lower flexural pivot top surface it is outer
There are a blind hole being inserted into for 6 activity of pin shaft of lower flexural pivot in convex, the disk bottom center, are provided with and correspond on the disk bottom surface
Multiple concentric circles of lower flexural pivot top surface simultaneously form a plurality of annular groove for rolling cooperation with steel ball 5.
Therefore the frame mode of steel ball and circular concave is two kinds, the first is cover-plate type (i.e. steel plate 7), circle
The section configuration of shape concave surface is semicircle or large semi-circular, and the projection diameter of a circle of circular concave is slightly larger than the diameter of steel ball,
The bore dia of steel plate 7 is slightly less than 5 diameter of steel ball, be for second it is embedded, do not have to cover board, in second, circular concave it is disconnected
Face shape is large semi-circular, and the diameter of the large semi-circular is slightly larger than steel ball diameter.
It is used as when being fixed with construction on the top surface of upper flexural pivot 1 and the bottom surface of lower flexural pivot 2 and is mutually connected firmly with bridge pier and cushion cap respectively
Rod iron 3；It is described that open round-meshed steel plate 7 be a monolith steel plate for covering all steel balls 5.The adjoining of upper and lower flexural pivot 1,2
There is the outwardly extending annulus of a circle on the periphery of face respectively, the bolt hole connected for bolt 4 is evenly equipped on two annulus.Bolt hole
It is 8, the radius of the steel ball 5 is 3cm~6cm.Upper and lower flexural pivot 1,2 is the upper and lower flexural pivot of steel.
Upper 1 lower end of flexural pivot is convex spherical, and lower 2 upper end of flexural pivot is concave spherical surface；Upper flexural pivot 1 carries out group in factory with lower flexural pivot 2
Dress edits, and is fixed temporarily by 8 pairs of bolts 4, when rotator construction, temporary fixing lifting.The upper flexural pivot 1 and lower ball
Hinge 2 is made up of the rotating mechanism of flexural pivot pin shaft 6；The upper flexural pivot 1 and lower flexural pivot 2 by rod iron 3 respectively with bridge pier and cushion cap
It is connected and fixed；It is contacted between the upper flexural pivot 1 and lower flexural pivot 2 by steel ball 5, rolling friction when rotating flexural pivot.
In conjunction with Fig. 2 and Fig. 4, lower 2 upper end of flexural pivot is concave spherical surface, and the steel ball 5 is embedded in the recessed ball in lower 2 upper end of flexural pivot
In face, and being covered in lower 2 upper end of flexural pivot by steel plate 7 does not fall off steel ball 5, and steel ball is also able to rotate, and passes through steel ball 5
Original place rolls the purpose for making bridge realize swivel.
In conjunction with Fig. 3 and Fig. 5, upper 1 lower end of flexural pivot is convex spherical, provides rolling when the slideway 8 is swivel for steel ball 5
Sliding way, lower flexural pivot 2 is always stationary state in entire rotation process, and upper flexural pivot 1 is by slideway 8 with 5 slip band of steel ball
Dynamic top bridge rotation.
The utility model makes to contact between flexural pivot and lower flexural pivot using steel ball group, changes traditional sliding friction as rolling
Dynamic friction has the advantages that bear large-tonnage and coefficient of friction is small；And upper and lower flexural pivot carries out assembling in factory and edits, and has knot
Structure precision height and the fast advantage of site construction.
Claims (5)
1. a kind of large-tonnage rotator construction flexural pivot, which is characterized in that lower flexural pivot (2) structure are as follows: the top surface of disk is imploded arcs
Shape, disk end face center is fixed with a pin shaft (6), and is evenly equipped with multiple circular concaves along multiple concentric circles on disk top surface,
It is placed with a steel ball (5) on each circular concave, is covered with one on each steel ball (5) and opens round-meshed steel plate thereon
(7), the diameter of the circular hole is less than the diameter of steel ball (5), alternatively, the piecemeal activity greater than radius of each steel ball (5) is embedding
Enter in a circular concave, and the round upper opening diameter of the circular concave is less than steel ball (5) diameter；Upper flexural pivot (1) structure
Are as follows: the diameter of disk is identical as the disk diameter of lower flexural pivot, and the bottom surface of the disk is the outer convex arc to match with lower flexural pivot top surface
There are a blind hole being inserted into for pin shaft (6) activity of lower flexural pivot in shape, the disk bottom center, are provided under corresponding on the disk bottom surface
Multiple concentric circles of flexural pivot top surface simultaneously form a plurality of annular groove for rolling cooperation with steel ball (5).
2. a kind of large-tonnage rotator construction flexural pivot according to claim 1, which is characterized in that the upper flexural pivot (1)
As the rod iron (3) mutually connected firmly with bridge pier and cushion cap respectively when being fixed with construction on top surface and the bottom surface of lower flexural pivot (2)；It is described to open
Round-meshed steel plate (7) is a monolith steel plate for covering all steel balls (5).
3. a kind of large-tonnage rotator construction flexural pivot according to claim 2, which is characterized in that the upper and lower flexural pivot (1,
2) there is the outwardly extending annulus of a circle on adjacent surface periphery respectively, the spiral shell for bolt (4) connection is evenly equipped on two annulus
Keyhole.
4. a kind of large-tonnage rotator construction flexural pivot according to claim 3, which is characterized in that the bolt hole is 8,
The radius of the steel ball (5) is 3cm~6cm.
5. a kind of large-tonnage rotator construction flexural pivot according to claim 1 or 2 or 3 or 4, which is characterized in that on described,
Lower flexural pivot (1,2) is the upper and lower flexural pivot of steel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821050720.9U CN208545674U (en) | 2018-07-03 | 2018-07-03 | A kind of large-tonnage rotator construction flexural pivot |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821050720.9U CN208545674U (en) | 2018-07-03 | 2018-07-03 | A kind of large-tonnage rotator construction flexural pivot |
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| Publication Number | Publication Date |
|---|---|
| CN208545674U true CN208545674U (en) | 2019-02-26 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821050720.9U Expired - Fee Related CN208545674U (en) | 2018-07-03 | 2018-07-03 | A kind of large-tonnage rotator construction flexural pivot |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108660942A (en) * | 2018-07-03 | 2018-10-16 | 西南交通大学 | A kind of large-tonnage rotator construction flexural pivot |
-
2018
- 2018-07-03 CN CN201821050720.9U patent/CN208545674U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108660942A (en) * | 2018-07-03 | 2018-10-16 | 西南交通大学 | A kind of large-tonnage rotator construction flexural pivot |
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190226 Termination date: 20210703 |
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| CF01 | Termination of patent right due to non-payment of annual fee |