CN202878483U - Long drill way passing device for whole bundle of prestress steel strands - Google Patents
Long drill way passing device for whole bundle of prestress steel strands Download PDFInfo
- Publication number
- CN202878483U CN202878483U CN201220407716XU CN201220407716U CN202878483U CN 202878483 U CN202878483 U CN 202878483U CN 201220407716X U CN201220407716X U CN 201220407716XU CN 201220407716 U CN201220407716 U CN 201220407716U CN 202878483 U CN202878483 U CN 202878483U
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- connector
- drill way
- hole
- whole bundle
- steel strands
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- Expired - Fee Related
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Abstract
A long drill way passing device for a whole bundle of prestress steel strands comprises a connector and a positioning device. The connector is in a conical shape. A drawing-in through hole is formed in the upper end of the connector. An internal thread connection hole is formed in the bottom portion of the connector. The positioning device is in a protrusion shape. A connection external thread is arranged on one end of the protrusion shape. Positioning holes are formed at the bottom of the positioning device in an annular mode. The problem that a bundle of prestress steel strands is prone to intertwining in the process of passing a drill way inside a corrugated pipe. The long drill way passing device for the whole bundle of prestress steel strands has the advantages that the whole bundle of prestress steel strands can pass through the drill way once for all, drill way passing time is saved and working efficiency is improved.
Description
Technical field
The utility model relates to the whole bundle punching machine of a kind of slotted hole road prestress wire, particularly a kind of in the post stressed concrete work progress, the frock that is used for the whole bundle perforation of prestress wire is the isolated plant that auxiliary prestress wire is realized whole bundle perforation.
Background technology
In recent years, the post stressed concrete construction method is widely used in the construction of the prefabricated components such as continuous box girder, and prestressed pore passage length is generally at 50m～200m, and it is one important procedure of Post-tension Prestress Construction process that prestressing tendon is bored a hole.After orifice throat length surpassed 50m, the difficulty of steel strand integral bundle perforation strengthened.When whole bundle steel strand wires adopted single perforation, follow-up steel strand wires were difficult for passing prestressed pore passage, twine easily, caused controlling tension stress and the elongation deviation exceeds code requirement.
The utility model content
Its purpose of the utility model just is to provide a kind of slotted hole road prestress wire whole bundle punching machine, thereby has solved the problem that winding easily occurs in bellows in the prestressing tendon perforation procedure.Have the characteristics of whole bundle steel strand wires disposable wearing piping, saved the aperture time, improved operating efficiency.
The technical scheme that realizes above-mentioned purpose and take comprises connector and positioner, and described connector is conical, and the connector top is provided with the traction through hole, and the connector bottom is provided with threaded connection hole; Described positioner is convex, and convex one end is provided with connecting thread, and the positioner bottom is provided with the circular orientation hole.
Compared with prior art the utlity model has following advantage.
After using this device, solved that steel wire bundle in the post-stressed steel strand tension process occurs to twine and the perforation that causes does not freely reach the problem of Bellow Expansion Joint Failure in bellows.Have the characteristics of whole bundle steel strand wires disposable wearing piping, saved the aperture time, improved operating efficiency.
Description of drawings
The utility model is described in further detail below in conjunction with accompanying drawing.
Fig. 1 is the positioning device structure schematic front view.
Fig. 2 is the positioning device structure diagrammatic top view.
Fig. 3 is connector structural representation front view.
Fig. 4 is connector structural representation top view.
The specific embodiment
This device comprises connector 4 and positioner 1, and shown in Fig. 1,3, described connector 4 is conical, and connector 4 tops are provided with traction through hole 5, and connector 4 bottoms are provided with internal thread connecting hole 6; Described positioner 1 is convex, and convex one end is provided with and connects external screw thread 3, and positioner 1 bottom is provided with circular orientation hole 2, shown in Fig. 2,4.
Described circular orientation hole 2 diameters are 5.6mm.
When prestressing tendon is installed, compressor wire of every steel strand wires core is passed this device (such as Fig. 3) locating hole to be fixed, then this part is tightened with the superstructure of device and be connected, guarantee that steel wire bundle is connected with this punching machine.Hauling rope by hoist engine links to each other with penetrating device, starts turning hoisting machine at the duct other end, draws this device and brings and pass whole bundle prestress wire into duct.Because adopt this punching machine, each root steel strand wires relative position of prestressing tendon remains constant, and the phenomenon of off normal can not occur, penetrate in the process in the prestressing tendon traction, do not twine between each root steel strand wires.
The design feature of this device:
Positioner is mechanical fastening system, and this fixture has that handling speed is fast, the reliable advantage of firm position.After prestressing tendon is fixing with this device, be fixed together by locating hole each root steel strand wires with steel wire bundle, the position is relatively fixing between each root steel strand wires, be evenly arranged, form the circular hole of an overall structure by the device top and be connected with pulling equipment, prestressing tendon integral body is slowly walked in the duct.
The cardinal principle of this programme is to adopt the whole bundle positioner of prestress wire accurately to locate prestressing tendon fixing.The whole bundle punching machine of prestress wire location adopts steel ingot to form (Fig. 3) by lathe grinding boring, makes precision and intensity and satisfies the Post-tension Prestress Construction technological requirement.Positioner and steel wire bundle connecting hole hole dia 5.6mm, hole count is steel wire bundle quantity and is evenly arranged.Production process is as follows: (1) is according to the lashing steel strand wires radical on the drawing and circular orientation bore dia, determine positioner diameter and connector hole count, and machine-shaping, evenly hole at the positioner front end, before the prestressing tendon perforation, steel wire bundle core steel wire is passed positioner locating hole and fixing; (2) then the positioner coupling part is tightened with the connector of putting on steel wire bundle and be connected; (3) with haulage cable with after the preformed hole on connector part top is connected, the prestressing tendon integrally dragging is passed the duct, convenient and quick construction, firm position is reliable.
Claims (2)
1. whole bundle punching machine of slotted hole road prestress wire, comprise connector (4) and positioner (1), it is characterized in that described connector (4) is conical, connector (4) top is provided with traction through hole (5), and connector (4) bottom is provided with internal thread connecting hole (6); Described positioner (1) is convex, and convex one end is provided with and connects external screw thread (3), and positioner (1) bottom is provided with circular orientation hole (2).
2. the whole bundle punching machine of a kind of slotted hole road prestress wire according to claim 1 is characterized in that described circular orientation hole (2) diameter is 5.6mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201220407716XU CN202878483U (en) | 2012-08-17 | 2012-08-17 | Long drill way passing device for whole bundle of prestress steel strands |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201220407716XU CN202878483U (en) | 2012-08-17 | 2012-08-17 | Long drill way passing device for whole bundle of prestress steel strands |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202878483U true CN202878483U (en) | 2013-04-17 |
Family
ID=48069945
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201220407716XU Expired - Fee Related CN202878483U (en) | 2012-08-17 | 2012-08-17 | Long drill way passing device for whole bundle of prestress steel strands |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202878483U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108104479A (en) * | 2018-01-24 | 2018-06-01 | 柳州欧维姆机械股份有限公司 | A kind of whole beam draft gear of prestress wire and its construction method for prestressing tendon integrally dragging |
-
2012
- 2012-08-17 CN CN201220407716XU patent/CN202878483U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108104479A (en) * | 2018-01-24 | 2018-06-01 | 柳州欧维姆机械股份有限公司 | A kind of whole beam draft gear of prestress wire and its construction method for prestressing tendon integrally dragging |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130417 Termination date: 20170817 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |