CN200985492Y - Construction positioning device for suspending bridge main cable - Google Patents
Construction positioning device for suspending bridge main cable Download PDFInfo
- Publication number
- CN200985492Y CN200985492Y CN 200620164807 CN200620164807U CN200985492Y CN 200985492 Y CN200985492 Y CN 200985492Y CN 200620164807 CN200620164807 CN 200620164807 CN 200620164807 U CN200620164807 U CN 200620164807U CN 200985492 Y CN200985492 Y CN 200985492Y
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- fastening
- hoof
- main cable
- bridge main
- hydraulic jack
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Abstract
A positioning apparatus of a main cable of a suspended-cable comprises at least a reaction frame1, a hydraulic jack 2, and a fastening hoof 4, is characterized in that the reaction frame1 is a positive six-rowed box body, every surface of which is connected with a hydraulic jack 2 which is tightly connected with the fastening hoof 4; a symmetric couple of jut ears are arranged at each side of the fastening hoof 4, and spacing devices consisting of a spacing screw 5, a spacing bolt nut 6, a spacing plate 8 are symmetrically fixed on the jut ears. The jut ear of the fastening hoof 4, with the length, the width, and the thickness of 200 to 300 mm, 100 to 200 mm, and 50 to 70 mm respectively, is used to symmetrically fix the spacing screw 5 and the spacing bolt nut 6. The structure of the apparatus of this utility model has a moderate dimension and a reasonable design and is safe and reliable. In addition, the utility model provides the reliable fastening and positioning with low cost.
Description
Technical field
The utility model relates to a kind of fastening positioning device, particularly a kind of suspension bridge main cable construction positioner.
Background technology
Fast development along with infrastructures such as highway in China traffic as the strongest suspension bridge of span ability, progressively becomes one of first-selected bridge type of striding river, passage over strait.At home, main rope of suspension bridge generally is made up of tens of up to a hundred prefabricated parallel wire units (PWS is commonly called as strand), after the sag adjustment that constitutes whole strands of main push-towing rope finishes, has the space between each strand, and its apparent diameter is than big many of desired diameter.In order to carry out follow-up engineering construction smoothly, need the main push-towing rope cross section fastening be circular, dwindle internal voids as far as possible, use tight cable machine to carry out tight cable for this reason.Fastener is as the groundwork mechanism of tight cable machine, its objective is the void content requirement that realizes that the main push-towing rope cross section is circular and reach regulation.Fastener mainly is made up of fastening hoof, hydraulic jack and reaction frame.Reaction frame is the hexagon box structure, be used for six hydraulic jack of support fixation, jack freely stretches under the control of hydraulic system, advances six fastening hoof centerings of oil cylinder end circular jointly, and main push-towing rope is squeezed into circle gradually by six jack under the effect of fastening hoof.The tight cable machine of the main span footpath above main rope of suspension bridge of km generally needs the jam-packed power more than 1200 tons, therefore the jack volume and weight is bigger, in fastening process, six hydraulic jack are arranged in the diverse location of reaction frame, because jack piston self gravitation effect, multiple factor affecting such as the fluid pressure line that is connected with six hydraulic jack is different in size in addition, cause six jack cylinders propellings and retraction speed not to wait, each fastening hoof can not be synchronously near and push main push-towing rope, at this moment main push-towing rope can be squeezed partially or be caused damage, and the tight cable construction quality and the construction safety of main push-towing rope caused adverse effect.The fastening positioning device design size is difference along with the variation of main rope of suspension bridge diameter, so its design size selection is excessive, and tight cable work efficiency reduces, and is less economical; Design size is too small, causes fastening hoof entirely on the centerly not put in place, does not reach the technical requirements of main push-towing rope void content 18%.
Summary of the invention
In order to overcome the partially crowded or damage of main push-towing rope meeting quilt that traditional tight cable machine structure defective itself causes, the utility model provides a kind of suspension bridge main cable construction positioner, it can guarantee that main push-towing rope is shaped the cross section, back for circular, reach the construction requirement of void content, its construction quality of the tight cable of main push-towing rope that makes reasonable in design improves, and job safety is reliable.
The technical solution of the utility model is: design a kind of suspension bridge main cable construction positioner, which comprises at least reaction frame 1, hydraulic jack 2, fastening hoof 4, it is characterized in that: reaction frame 1 is positive six rib casings, be connected with a hydraulic jack 2 on each face of positive six rib casings, hydraulic jack 2 is fixedlyed connected with fastening hoof 4, there is a pair of ear that stretches out that is symmetrical structure fastening hoof 4 both sides, and position-limit mechanism is fixed on stretching out on the ear of fastening hoof 4.
The telescopic oil cylinder 3 of described hydraulic jack 2 and fluid pressure line 7 are communicated with, and the telescopic oil cylinder 3 of six hydraulic jack 2 is communicated with a table oil pump by fluid pressure line 7 respectively.
Described position-limit mechanism is connected and composed by spacing screw rod 5, stop nut 6, limiting plate 8.
There is a pair of ear that stretches out that is symmetrical structure described fastening hoof 4 both sides, and each stretches out the ear length degree and is chosen in 200-300mm, and width is chosen in 100-200mm, and thickness is chosen in 50-70mm.
Form a concentric structure on six faces of described reaction frame 1 after corresponding six fastening hoof 4 centerings.
The spacing stroke of described position-limit mechanism is chosen in 90-140mm.
Described fastening hoof 4 stretch out ear, each stretches out the ear length degree is 250mm, width is 150mm, highly is 60mm.
The spacing stroke of described position-limit mechanism is 100mm.
Characteristics of the present utility model are: before the tight cable construction of tight cable machine, measure distance between stop nut 6 and the limiting plate 8 with ruler, determine the spacing stroke of spacing screw rod 5 in advance by the position of adjusting stop nut 6; When tight cable construction begins, under the control of hydraulic mechanism, the fastening hoof 4 of telescopic oil cylinder 3 pushing tows of six hydraulic jack 2 is to the reaction frame 1 center centering of advancing, because every fastening hoof both sides are connected with the spacing screw rod 5 of adjusting stroke in advance, when the fastening faster hoof of speed arrives the centering position of setting in advance, stop to advance, the fastening hoof that latency speed is relatively slow, when six fastening hoof all arrive the centering position of setting, the cross section of pressurized main push-towing rope is a circular cross-section, has also reached the requirement of the tight cable void content of main push-towing rope simultaneously.The beneficial effect of a kind of suspension bridge main cable construction positioner of the utility model is, when carrying out tight cable construction operation, collapsing length by pre-set spacing screw rod, automatically control the centering position of six fastening hoof, the apparatus structure moderate dimensions of the utility model design, reasonable in design, safe and reliable, fastening location is reliable, and cost is low.
Description of drawings
Below in conjunction with the embodiment accompanying drawing the utility model is further described.
Fig. 1 is a fastening positioning device overall structure schematic diagram;
Fig. 2 fastens the preceding working state schematic representation of the tight cable construction of bit location (A-A section) for each;
Fig. 3 fastens the tight cable construction of bit location (A-A section) back working state schematic representation for each.
Among the figure: 1, reaction frame; 2, hydraulic jack; 3, telescopic oil cylinder; 4, fastening hoof; 5, spacing screw rod; 6, stop nut; 7, fluid pressure line; 8, limiting plate.
The specific embodiment
Embodiment as shown in Figure 1, this device is connected and composed by reaction frame 1, hydraulic jack 2, fastening hoof 4, position-limit mechanism, position-limit mechanism is connected and composed by spacing screw rod 5, stop nut 6, limiting plate 8.There is a pair of ear that stretches out that is symmetrical structure fastening hoof 4 both sides, in order to symmetrical fixed limit screw rod 5 and stop nut 6.Fastening hoof 4 is symmetrical arcuate structures, each fastening hoof 4 stretch out ear length degree size Selection at 200-300mm, width dimensions is chosen in 100-200mm, thickness is 50-70mm, it is 250mm that optimum size is chosen in length, width is 150mm, thickness is 60mm.The spacing stroke of position-limit mechanism is chosen in 90-140mm, best stroke 100mm.The physical dimension of embodiment is moderate not only to have met safety and construction efficiency requires but also can not make the heavy cost of structure too high.Reaction frame 1 is positive six rib casings, is connected with a hydraulic jack 2 on each face of positive six rib casings, and the telescopic oil cylinder 3 of hydraulic jack 2 is fixedlyed connected with fastening hoof 4, and fastening hoof 4 is connected with position-limit mechanism.Fluid pressure line 7 is fixed in the positive six rib casings of reaction frame 1, is communicated with six hydraulic jack 2 respectively, and the telescopic oil cylinder 3 of six hydraulic jack 2 is communicated with a table oil pump by fluid pressure line 7 respectively.Six hydraulic jack 2 are fixed on the reaction frame 1 respectively symmetrically, telescopic oil cylinder 3 direction of exerting pressure of every jack all point to the center of hexagon reaction frame, and form a concentric structure be connected with 4, six fastening hoof centerings of fastening hoof of arc-shaped structure in the end of inboard after; Spacing screw rod 5 one ends are connected and fixed by nut and fastening hoof 4, and the hole that the other end passes limiting plate 8 is connected with stop nut 6.
Fig. 2 fastens the preceding working state schematic representation of the tight cable construction of bit location (A-A section) for each.As shown in Figure 2, spacing screw rod 5 one ends are fixedlyed connected with the ear that stretches out that fastening hoof 4 stretches out by nut, and the hole that the other end passes limiting plate 8 is connected with stop nut 6.Before the tight cable construction of tight cable machine, adjust stop nut 6 in advance, measure distance between stop nut 6 and the limiting plate 8 with ruler, so that accurately control the stroke 100mm of spacing screw rod 5.
Fig. 3 fastens the tight cable construction of bit location (A-A section) back working state schematic representation for each.As shown in Figure 3, after tight cable construction beginning, under the control of hydraulic mechanism, hydraulic jack 2 is exerted pressure by the oil transportation of fluid pressure line 7, the fastening hoof 4 of telescopic oil cylinder 3 pushing tows is to the center of reaction frame 1 centering of advancing, because fastening hoof 4 both sides are connected with the spacing screw rod 5 of adjusting stroke in advance, when fastening hoof 4 arrives the centering position of setting, stop to advance.
After tight cable construction beginning, under the control of hydraulic mechanism, hydraulic jack 2 is exerted pressure by the oil transportation of fluid pressure line 7, the fastening hoof 4 of telescopic oil cylinder 3 pushing tows is to the center of reaction frame 1 centering of advancing, because fastening hoof 4 both sides are connected with the spacing screw rod 5 of adjusting stroke in advance, when fastening hoof 4 arrives the centering position of setting, stop to advance.Because a kind of suspension bridge main cable construction positioner of the utility model, every fastening hoof both sides are connected with the spacing screw rod 5 of adjusting stroke in advance, when the fastening faster hoof of speed arrives the centering position of setting in advance, stop to advance, the fastening hoof 4 that latency speed is relatively slow, when six fastening hoof 4 all arrived the centering position of setting, the cross section of pressurized main push-towing rope was a circular cross-section, had also reached the requirement of the tight cable void content of main push-towing rope simultaneously.
Claims (8)
1, a kind of suspension bridge main cable construction positioner, which comprises at least reaction frame (1), hydraulic jack (2), fastening hoof (4), it is characterized in that: reaction frame (1) is positive six rib casings, be connected with a hydraulic jack (2) on each face of positive six rib casings, hydraulic jack (2) is fixedlyed connected with fastening hoof (4), there is a pair of ear that stretches out that is symmetrical structure fastening hoof (4) both sides, and position-limit mechanism is fixed on stretching out on the ear of fastening hoof (4).
2, a kind of suspension bridge main cable construction positioner according to claim 1, it is characterized in that: the telescopic oil cylinder (3) of described hydraulic jack (2) and fluid pressure line (7) are communicated with, and the telescopic oil cylinder (3) of six hydraulic jack (2) is communicated with a table oil pump by fluid pressure line (7) respectively.
3, a kind of suspension bridge main cable construction positioner according to claim 1 is characterized in that: described position-limit mechanism is connected and composed by spacing screw rod (5), stop nut (6), limiting plate (8).
4, a kind of suspension bridge main cable construction positioner according to claim 1 is characterized in that: described fastening hoof (4) stretch out ear, each stretches out the ear length degree and is chosen in 200-30mm, width is chosen in 100-200mm, thickness is chosen in 50-70mm.
5, a kind of suspension bridge main cable construction positioner according to claim 1 is characterized in that: form a concentric structure on six faces of described reaction frame (1) after corresponding six fastening hoof (4) centering.
6, a kind of suspension bridge main cable construction positioner according to claim 1, it is characterized in that: the spacing stroke of described position-limit mechanism is chosen in 90-140mm.
7, a kind of suspension bridge main cable construction positioner according to claim 1 is characterized in that: described fastening hoof (4) stretch out ear, each stretches out the ear length degree is 250mm, width is 150mm, highly is 60mm.
8, a kind of suspension bridge main cable construction positioner according to claim 1, it is characterized in that: the spacing stroke of described position-limit mechanism is 100mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620164807 CN200985492Y (en) | 2006-12-26 | 2006-12-26 | Construction positioning device for suspending bridge main cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620164807 CN200985492Y (en) | 2006-12-26 | 2006-12-26 | Construction positioning device for suspending bridge main cable |
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| Publication Number | Publication Date |
|---|---|
| CN200985492Y true CN200985492Y (en) | 2007-12-05 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200620164807 Expired - Lifetime CN200985492Y (en) | 2006-12-26 | 2006-12-26 | Construction positioning device for suspending bridge main cable |
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| CN (1) | CN200985492Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101210414B (en) * | 2006-12-26 | 2010-12-22 | 中交第二公路工程局有限公司 | Fastening positioning device for suspension bridge main cable construction |
| CN103434933A (en) * | 2013-08-13 | 2013-12-11 | 中国核工业华兴建设有限公司 | Large member hoisting in-position device and in-position method |
| CN105507129A (en) * | 2015-12-11 | 2016-04-20 | 中铁大桥局集团第二工程有限公司 | Suspension bridge main cable tightening tool structure and design method |
| CN112144399A (en) * | 2020-10-12 | 2020-12-29 | 马征 | A frock clamp for suspension bridge hoist cable is fixed |
-
2006
- 2006-12-26 CN CN 200620164807 patent/CN200985492Y/en not_active Expired - Lifetime
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101210414B (en) * | 2006-12-26 | 2010-12-22 | 中交第二公路工程局有限公司 | Fastening positioning device for suspension bridge main cable construction |
| CN103434933A (en) * | 2013-08-13 | 2013-12-11 | 中国核工业华兴建设有限公司 | Large member hoisting in-position device and in-position method |
| CN103434933B (en) * | 2013-08-13 | 2015-02-18 | 中国核工业华兴建设有限公司 | Large member hoisting in-position device and in-position method |
| CN105507129A (en) * | 2015-12-11 | 2016-04-20 | 中铁大桥局集团第二工程有限公司 | Suspension bridge main cable tightening tool structure and design method |
| CN105507129B (en) * | 2015-12-11 | 2017-04-19 | 中铁大桥局集团第二工程有限公司 | Suspension bridge main cable tightening tool structure and design method |
| CN112144399A (en) * | 2020-10-12 | 2020-12-29 | 马征 | A frock clamp for suspension bridge hoist cable is fixed |
| CN112144399B (en) * | 2020-10-12 | 2021-04-16 | 马征 | A frock clamp for suspension bridge hoist cable is fixed |
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| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20071205 |
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| EXPY | Termination of patent right or utility model |