CN2055837U - Trailing tension device for big tonnage rigging - Google Patents
Trailing tension device for big tonnage rigging Download PDFInfo
- Publication number
- CN2055837U CN2055837U CN 89217181 CN89217181U CN2055837U CN 2055837 U CN2055837 U CN 2055837U CN 89217181 CN89217181 CN 89217181 CN 89217181 U CN89217181 U CN 89217181U CN 2055837 U CN2055837 U CN 2055837U
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- CN
- China
- Prior art keywords
- traction
- jack
- rope
- anchor
- ground tackle
- Prior art date
- 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.)
- Expired - Lifetime
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Abstract
The utility model relates to a traction tension device for a big tonnage cable. The traction tension device for a big tonnage cable is composed of an anchor head, a steel stranded wire bundle (tool bundle) used for traction, a tension jack and a traction jack. The traction tension device for a big tonnage cable is characterized in that the anchor head is connected with an open type connecting head. One end of the tool bundle is provided with an extruded anchor tool. A static fixed anchor tool and a hydraulic top pressure device are arranged between the tension jack and the traction jack. The outer end of the traction jack is provided with a movable anchor tool. The traction tension device for a big tonnage cable is especially suitable for the traction and the tension for the stay cable or the flat cable of a big tonnage cable-stayed bridge. The utility model has the advantages of convenient traction, reliable anchoring, etc. The tool bundle can be easily assembled and disassembled. The jack can be singly used.
Description
The utility model belongs to the pre-stress construction facility.
At the construction work progress of cable stayed bridge, the two ends of drag-line need be penetrated respectively on the beam and tower on the rope hole reserved, and do preliminary fixingly, be called the extension rope, or claim that traction is in place, and then carry out next step stretch-draw anchor.Be no more than 300 tons little tonnage rope for working cable power, adopt the hoist engine wire rope directly to hang rope, can accomplish.But when working cable power surpass 300 tons, when adopting hoist engine to hang rope, because it is low to hang Suo Zhangli, be difficult to make the bitter end anchor head to pull out reservation rope hole on the tower, though when perhaps hanging rope, the bitter end anchor head has been pulled out reservation rope hole on the tower, and during next step stretch-draw, the bitter end anchor head can occur exposes too much, and does not meet the requirement of design and construction.
At present, traction job practices in place, stretch-draw anchor for the large-tonnage rope that working cable power is big, Suo Chong is also bigger is to adopt the way of lengthening tension rod, its device is at stay cable end anchor head place, connect tension rod, connect one section steel wire bundle (instrument rope) again, and then be connected with draw-gear by the stretch-draw jack.Wherein tension rod has two kinds of sizes, can use screw shell spreading or replacing.The traction stretching process of existing this device is: 1, with hoist engine anchor head is promoted to entrance, body of the tower rope hole, lower link bar one end is connected with anchor head, the other end is connected with steel wire bundle with traction by screw shell.This moment, steel wire bundle passed the centre bore of stretch-draw jack and the reservation rope hole on the Tower Column of A Cable Stayed Bridge.2, start the stretch-draw jack, tighten up steel wire bundle, drag-line is drawn, after steel wire bundle arrives most end, unload lower traction equipment, continue traction, stretch out reservation rope hole, finish distraction procedure until anchor head with lower link bar.3, lower link bar is used instead big pull bar, be stretched to design Suo Li, carry out anchoring, finish the stretch-draw anchor process.This shows, the existing apparatus course of work pull bar that need change the outfit, it is loaded down with trivial details to construct.
The purpose of this utility model is to adopt to have the steel wire bundle instrument bundle that pushes anchor, replaces the lengthening tension rod to draw and stretch-draw, to simplify job practices, improves the traction tensioning equipment of large-tonnage rope.
The traction tensioning equipment of large-tonnage rope of the present utility model is made up of with steel wire bundle (instrument bundle), stretch-draw jack, traction jack anchor head, traction, it is characterized in that anchor head is provided with the open type connector, instrument Shu Yiduan has the squash type ground tackle, can insert radially cracking of connector easily, between stretch-draw jack and traction jack, be provided with and decide ground tackle and hydraulic pressure top pressing device, moving ground tackle is set in traction jack outer end.The open type connector is a cylinder, and an end is provided with screw thread, and the other end is provided with uniform radially cracking along periphery.
Adopt the utility model, than establishing the traction tensioning equipment that adds long draw, have the following advantages: because moving ground tackle is in the top ground tackle outside, traction is to pass to decide after each duct of ground tackle locatees with steel wire bundle, enter moving ground tackle again, can improve moving ground tackle from the anchor performance; Because deciding ground tackle is provided with the hydraulic pressure top pressing device, utilizes the intermediate plate of hydraulic pressure strong ejection ground tackle, can make intermediate plate entirely enter anchor hole, can not try to shirk responsibility, anchoring is reliable; Special-purpose open type connector is connected drag-line with the instrument rope, the squash type ground tackle of instrument bitter end head is convenient to unload from the cracking of connector, and the open type connector is with the anchor head that is threaded in drag-line, convenient disassembly simultaneously, can connect many steel strand, improve the supporting capacity of instrument rope; Traction jack and stretch-draw jack adopt independent jack combination, all can use separately.This device is applicable to the traction stretch-draw of suspension cable or horizontal drawing rope.
Below in conjunction with drawings and Examples the utility model is further described.
Fig. 1 is the traction tensioning equipment traction working condition schematic diagram of large-tonnage rope
Fig. 2 is the traction tensioning equipment stretch-draw operating mode schematic diagram of large-tonnage rope
Fig. 3 is open type connector and squash type ground tackle connecting portion sectional drawing
As seen from the figure, the traction tensioning equipment of large-tonnage rope is made up of with steel wire bundle (instrument bundle) 4, stretch-draw jack 6, traction jack 9 anchor head 1 open type connector 2, traction, have squash type ground tackle 3 at instrument Shu Yiduan, between stretch-draw jack 6 and traction jack 9, be provided with and decide ground tackle 7 and hydraulic pressure top pressing device 8, be provided with moving ground tackle 10 in traction jack outer end.
Its distraction procedure is: start oil pump, make the stretch-draw jack piston extend certain position outward, close throttle and make it can not backhaul; Start the traction jack again, moving ground tackle automatic locking, the instrument rope affects drag-line by the open type connector, when the traction jack reaches impulse stroke, decide the intermediate plate of ground tackle with the ejection of hydraulic pressure top pressing device, anchor clamping tool rope, in the backhaul of traction jack, moving ground tackle is promptly opened automatically with the instrument rope relative slip is taken place.Backhaul finishes, and once more during stroke, moving ground tackle automatic locking decide ground tackle and is opened automatically at the traction jack, and the instrument rope continues mobile.So repeat work, can make the chill casting anchor head 1 of drag-line termination pull out reservation rope hole on the tower, temporarily fixing with anchor ring 5, it is in place to finish traction.
Its stretching process is: with nut temporarily fixedly after the chill casting anchor head, shed moving ground tackle, traction jack, hydraulic pressure top pressing device one by one, decide ground tackle, instrument rope, open type connector, in the stretch-draw jack, penetrate tension rod 11, and be screwed in the screw of chill casting anchor head, the tension rod nut 12 of screwing on again, with the stretch-draw jack drag-line is stretched to the regulation tonnage, anchor ring 5 carries out anchoring, promptly finishes stretch-draw anchor.
Above embodiment adopts the large-tonnage vertically-displacable jack of 500～1000 tons of stretching forces to make the stretch-draw jack, and the vertically-displacable jack that tractive force is 300～500 tons is made the traction jack, and the instrument bundle is provided with 12～19 steel wire bundles.
Claims (2)
1, a kind of traction tensioning equipment of large-tonnage rope, form with steel wire bundle (instrument bundle), stretch-draw jack, traction jack by anchor head, traction, it is characterized in that being provided with the open type connector at the anchor head place, traction has the squash type ground tackle with steel wire bundle one end, between stretch-draw jack and traction jack, be provided with and decide ground tackle, hydraulic pressure top pressing device, be provided with moving ground tackle in traction jack outer end.
2, the traction tensioning equipment of large-tonnage rope as claimed in claim 1 is characterized in that the open type connector is cylindrical, and an end is provided with screw thread, and the other end is provided with uniform radially cracking along periphery.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 89217181 CN2055837U (en) | 1989-09-27 | 1989-09-27 | Trailing tension device for big tonnage rigging |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 89217181 CN2055837U (en) | 1989-09-27 | 1989-09-27 | Trailing tension device for big tonnage rigging |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2055837U true CN2055837U (en) | 1990-04-11 |
Family
ID=4872483
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 89217181 Expired - Lifetime CN2055837U (en) | 1989-09-27 | 1989-09-27 | Trailing tension device for big tonnage rigging |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2055837U (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100398769C (en) * | 2004-02-02 | 2008-07-02 | 埃克特温特股份有限公司 | Cable tensioning system and method of operation |
| CN101845894A (en) * | 2010-06-23 | 2010-09-29 | 北京市建筑工程研究院 | U-shaped tool device for prestressed steel structure tensioning construction and construction method |
| CN102001602A (en) * | 2010-12-01 | 2011-04-06 | 常州液压成套设备厂有限公司 | Superhigh pressure stretching jack |
| CN102888997A (en) * | 2012-10-31 | 2013-01-23 | 北京银泰建预应力工程有限公司 | Device for inhaul cable tensioning construction in prestressed steel structure |
| CN103696371A (en) * | 2013-12-25 | 2014-04-02 | 中铁大桥局集团第四工程有限公司 | Stretching device and stretching method for slings of self-anchorage suspension bridges |
| CN110004835A (en) * | 2019-04-19 | 2019-07-12 | 中交第二航务工程局有限公司 | A kind of suspension cable anchor fixing device and pressure anchor method |
-
1989
- 1989-09-27 CN CN 89217181 patent/CN2055837U/en not_active Expired - Lifetime
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100398769C (en) * | 2004-02-02 | 2008-07-02 | 埃克特温特股份有限公司 | Cable tensioning system and method of operation |
| CN101845894A (en) * | 2010-06-23 | 2010-09-29 | 北京市建筑工程研究院 | U-shaped tool device for prestressed steel structure tensioning construction and construction method |
| CN102001602A (en) * | 2010-12-01 | 2011-04-06 | 常州液压成套设备厂有限公司 | Superhigh pressure stretching jack |
| CN102888997A (en) * | 2012-10-31 | 2013-01-23 | 北京银泰建预应力工程有限公司 | Device for inhaul cable tensioning construction in prestressed steel structure |
| CN103696371A (en) * | 2013-12-25 | 2014-04-02 | 中铁大桥局集团第四工程有限公司 | Stretching device and stretching method for slings of self-anchorage suspension bridges |
| CN110004835A (en) * | 2019-04-19 | 2019-07-12 | 中交第二航务工程局有限公司 | A kind of suspension cable anchor fixing device and pressure anchor method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CX01 | Expiry of patent term |