CN204760937U - Stride flexible arc bracket link gear of bridge cable - Google Patents
Stride flexible arc bracket link gear of bridge cable Download PDFInfo
- Publication number
- CN204760937U CN204760937U CN201520391882.9U CN201520391882U CN204760937U CN 204760937 U CN204760937 U CN 204760937U CN 201520391882 U CN201520391882 U CN 201520391882U CN 204760937 U CN204760937 U CN 204760937U
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- cable
- pull bar
- swing arm
- translation pull
- shift fork
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Abstract
The utility model relates to a stride flexible arc bracket link gear of bridge cable. At present stride flexible arc bracket link gear of bridge cable commonly used can't satisfy the requirement that camber such as each section arc of cable is warp. The utility model discloses a characteristics are: including being used for supporting and driving swinging arms that the cable removed no. 1, shift fork and swinging arms no. 2 and the fixed slip rack of cable socket, gear for fix the fixed rack on the bridge floor, translation pull rod, and support frame, translation pull rod and support frame swing joint, the lower extreme of shift fork is fixed on the translation pull rod, and the lower extreme of swinging arms no. 1 and swinging arms no. 2 all rotates the connection on the translation pull rod, and swinging arms no. 1 and swinging arms no. 2 are located the both sides of shift fork respectively and about the shift fork symmetry, the pivot of gear is installed on the translation pull rod, the equal and gear engagement of slip rack and fixed rack. The utility model has the advantages of reasonable structure design, no matter the cable arc extends still compression, and the curvature radius of each section arc is always the same, ensures the cable safe operation.
Description
Technical field
The utility model relates to a kind of bridge cable expansion arc bracket link gear, is generally used for extra-high-tension cable laying along over strait, river-spanning bridge case beam.
Background technology
The technological difficulties that extra-high-tension cable lays along over strait, river-spanning bridge case beam are: effectively must resolve the cable large scale telescoping problem that cable causes because of bridge floor load deformation, the factor such as to expand with heat and contract with cold.Common solution is at two casees beam seam crossing installing cables expansion arc devices (being called for short offset device).Publication number is in the Chinese utility model patent of CN201992194U, disclose a kind of high-tension cable expansion arc device " a kind of sliding system be used in cable expansion arc ", as can be seen from device schematic diagram, simultaneously the cable segmental arc participating in distortion is supported by four cable brackets and several servo-actuated cable bearer, only pull the cable bracket of arc top with a pull bar in this mechanism, when cable socket sliding end moves, leading portion arc and back segment arc cable can be subject to very large axial tension, and it is unfettered to become row track, after a reciprocating motion, path repeatability is very poor, cable also will drag other cable bracket simultaneously, significant defect is the requirement that cannot meet cable each section of arc iso-curvature distortion.
Utility model content
The purpose of this utility model is to overcome above shortcomings in prior art, and a kind of reasonable in design is provided, no matter cable arc extends or compresses, the radius of curvature of each section of arc is always identical, finally reach cable arc not by axial force, only do slight and uniform alternating bending, guarantee the bridge cable expansion arc bracket link gear of fail safe in cable running.
The technical scheme in the invention for solving the above technical problem is: the design feature of this bridge cable expansion arc bracket link gear is: comprise the swing arm one for supporting and drive cable moving, for supporting and drive the shift fork of cable moving, for supporting and drive the swing arm two of cable moving, with the sliding rack that cable socket is fixing, gear, for being fixed on the stationary rack on bridge floor, translation pull bar and for support translation pull bar and give translation pull bar move horizontally the bracing frame carrying out leading, described translation pull bar and bracing frame are flexibly connected, the lower end of described shift fork is fixed on translation pull bar, the lower end of described swing arm one and the lower end of swing arm two are all rotatably connected on translation pull bar, described swing arm one and swing arm two lay respectively at the both sides of shift fork, this swing arm one and swing arm two are about shift fork symmetry, the rotating shaft of described gear is arranged on translation pull bar, described sliding rack and stationary rack are all and gears meshing.
As preferably, the rotating shaft of gear described in the utility model is arranged on one end of translation pull bar.
As preferably, bracing frame described in the utility model is provided with pilot hole, described translation pull bar is movably connected in the pilot hole of bracing frame.
As preferably, the horizontal structure of translation pull bar described in the utility model.
As preferably, shift fork described in the utility model is vertical shape structure.
As preferably, the horizontal structure of rotating shaft of gear described in the utility model, described sliding rack and stationary rack lay respectively at top and the bottom of gear.
As preferably, the length of swing arm one described in the utility model and the length of swing arm two are all less than the length of shift fork.
The utility model compared with prior art, have the following advantages and effect: the basic demand of power department to bridge cable retractor device is: when bridge stretches, external force can be produced, external force should make the machine frame movement of cable expansion arc device, thus drive cable moving, to overcome the potential difference at expansion joint, require that the track of mechanism's movement is consistent, and machine frame movement can not be moved with banded cable.Operation principle of the present utility model is: when dynamic bridge floor pulls cable moving distance L, the first fork moves horizontally 1/4th L, and shift fork moves horizontally 1/2nd L, and the second fork moves horizontally 3/4ths L.From principle, the utility model ensure that the curvature of cable arc each section of arc in telescopic process is consistent, the movement locus of each dragging point is constant all the time, can meet the basic demand of power department to bridge cable retractor device completely, corresponding structural member makes also has no difficulty.
The utility model makes the cable bracket be arranged in camber line flex point move on the track of setting, during work, no matter cable arc extends or compresses, the radius of curvature of each section of arc is always identical, finally reach cable arc not by axial force, only do slight and uniform alternating bending, guarantee cable security, run reliably.
Accompanying drawing explanation
Fig. 1 is the structural representation of bridge cable expansion arc bracket link gear in the utility model embodiment.
Fig. 2 is the structural representation in Fig. 1 after the amplification of A place.
Fig. 3 is the motion principle schematic diagram of bridge cable expansion arc bracket link gear in the utility model embodiment.
Embodiment
Below in conjunction with accompanying drawing, also by embodiment, the utility model is described in further detail, and following examples are that the utility model is not limited to following examples to explanation of the present utility model.
Embodiment.
See Fig. 1 to Fig. 3, in the present embodiment bridge cable expansion arc bracket link gear comprise for support and drive the swing arm 1 of cable moving, for support and drive the shift fork 2 of cable moving, for support and drive sliding rack 4 that the swing arm 23 of cable moving and cable socket fix, gear 5, for being fixed on stationary rack 6 on bridge floor, translation pull bar 7 and for supporting translation pull bar 7 and moving horizontally the bracing frame 8 carrying out leading to translation pull bar 7.
Translation pull bar 7 in the present embodiment and bracing frame 8 are flexibly connected, the usual horizontal structure of translation pull bar 7.The lower end of shift fork 2 is fixed on translation pull bar 7, and shift fork 2 is usually in vertical shape structure.The lower end of swing arm 1 and the lower end of swing arm 23 are all rotatably connected on translation pull bar 7, swing arm 1 and swing arm 23 lay respectively at the both sides of shift fork 2, this swing arm 1 and swing arm 23 are about shift fork 2 symmetry, the rotating shaft of gear 5 is arranged on translation pull bar 7, and sliding rack 4 and stationary rack 6 all engage with gear 5.
The rotating shaft of the present embodiment middle gear 5 is arranged on one end of translation pull bar 7 usually, and the usual horizontal structure of rotating shaft of gear 5, sliding rack 4 and stationary rack 6 lay respectively at top and the bottom of gear 5.Bracing frame 8 is provided with pilot hole usually, and translation pull bar 7 is movably connected in the pilot hole of bracing frame 8.The length of swing arm 1 and the length of swing arm 23 are all less than the length of shift fork 2 usually.
Bridge cable expansion arc bracket link gear in the present embodiment makes the cable bracket be arranged in camber line flex point move on the track of setting, during work, no matter cable arc extends or compresses, the radius of curvature of each section of arc is always identical, finally reach cable arc not by axial force, only do slight and uniform alternating bending, guarantee that in cable running, safety is without anxiety.When dynamic bridge floor pulls cable moving distance L, the first fork moves horizontally L1/4, and shift fork moves horizontally L1/2, and the second fork moves horizontally L3/4.
In addition, it should be noted that, the specific embodiment described in this specification, the shape, institute's title of being named etc. of its parts and components can be different, and the above content described in this specification is only to the explanation of the utility model structure example.The equivalence change that structure, feature and principle described in all foundation the utility model inventional idea are done or simple change, be included in the protection range of the utility model patent.The utility model person of ordinary skill in the field can make various amendment or supplements or adopt similar mode to substitute to described specific embodiment; only otherwise depart from structure of the present utility model or surmount this scope as defined in the claims, protection range of the present utility model all should be belonged to.
Claims (7)
1. a bridge cable expansion arc bracket link gear, it is characterized in that: comprise the swing arm one for supporting and drive cable moving, for supporting and drive the shift fork of cable moving, for supporting and drive the swing arm two of cable moving, with the sliding rack that cable socket is fixing, gear, for being fixed on the stationary rack on bridge floor, translation pull bar and for support translation pull bar and give translation pull bar move horizontally the bracing frame carrying out leading, described translation pull bar and bracing frame are flexibly connected, the lower end of described shift fork is fixed on translation pull bar, the lower end of described swing arm one and the lower end of swing arm two are all rotatably connected on translation pull bar, described swing arm one and swing arm two lay respectively at the both sides of shift fork, this swing arm one and swing arm two are about shift fork symmetry, the rotating shaft of described gear is arranged on translation pull bar, described sliding rack and stationary rack are all and gears meshing.
2. bridge cable expansion arc bracket link gear according to claim 1, is characterized in that: the rotating shaft of described gear is arranged on one end of translation pull bar.
3. bridge cable expansion arc bracket link gear according to claim 1, it is characterized in that: support frame as described above is provided with pilot hole, described translation pull bar is movably connected in the pilot hole of bracing frame.
4. the bridge cable expansion arc bracket link gear according to claim 1 or 2 or 3, is characterized in that: the horizontal structure of described translation pull bar.
5. the bridge cable expansion arc bracket link gear according to claim 1 or 2 or 3, is characterized in that: described shift fork is vertical shape structure.
6. the bridge cable expansion arc bracket link gear according to claim 1 or 2 or 3, is characterized in that: the horizontal structure of rotating shaft of described gear, described sliding rack and stationary rack lay respectively at top and the bottom of gear.
7. the bridge cable expansion arc bracket link gear according to claim 1 or 2 or 3, is characterized in that: the length of described swing arm one and the length of swing arm two are all less than the length of shift fork.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520391882.9U CN204760937U (en) | 2015-06-09 | 2015-06-09 | Stride flexible arc bracket link gear of bridge cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520391882.9U CN204760937U (en) | 2015-06-09 | 2015-06-09 | Stride flexible arc bracket link gear of bridge cable |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204760937U true CN204760937U (en) | 2015-11-11 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520391882.9U Active CN204760937U (en) | 2015-06-09 | 2015-06-09 | Stride flexible arc bracket link gear of bridge cable |
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| Country | Link |
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| CN (1) | CN204760937U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105870840A (en) * | 2016-06-01 | 2016-08-17 | 金川集团股份有限公司 | Cable dragging and moving device |
| CN112436461A (en) * | 2020-12-07 | 2021-03-02 | 安徽徽宁电器仪表集团有限公司 | Temperature sensing cable of convenient installation |
-
2015
- 2015-06-09 CN CN201520391882.9U patent/CN204760937U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105870840A (en) * | 2016-06-01 | 2016-08-17 | 金川集团股份有限公司 | Cable dragging and moving device |
| CN112436461A (en) * | 2020-12-07 | 2021-03-02 | 安徽徽宁电器仪表集团有限公司 | Temperature sensing cable of convenient installation |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder | ||
| CP01 | Change in the name or title of a patent holder |
Address after: The city of Hangzhou city of Zhejiang Province, 310022 Stonebridge Road No. 338 Patentee after: United Engineers Ltd in China Address before: The city of Hangzhou city of Zhejiang Province, 310022 Stonebridge Road No. 338 Patentee before: China Lianhe Engineering Co., Ltd., China |