CN103388404A - Tractor provided with mandril and used for finished steel strand bundle - Google Patents
Tractor provided with mandril and used for finished steel strand bundle Download PDFInfo
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- CN103388404A CN103388404A CN2013103415153A CN201310341515A CN103388404A CN 103388404 A CN103388404 A CN 103388404A CN 2013103415153 A CN2013103415153 A CN 2013103415153A CN 201310341515 A CN201310341515 A CN 201310341515A CN 103388404 A CN103388404 A CN 103388404A
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Abstract
The invention discloses a tractor provided with a mandril and used for a finished steel strand bundle. The tractor comprises a banding ring, the mandril and a traction pull ring, one end, provided with a conical head, of the mandril is inserted into the center end part of the finished steel strand bundle, the other end, provided with threads, of the mandril is arranged at one end of a traction pull ring threaded hole of the traction pull ring in a rotating match way, the other end of the traction pull ring is provided with a pull ring, the banding ring is sleeved at the outer edge part of the mandril inserted into the finished steel strand bundle in a cut-through way, so as to band tightly the finished steel strand bundle, and the outline dimension of the tractor is smaller than the inner diameter of a construction duct through which the finished steel strand bundle is subsequently dragged to pass. The tractor has the beneficial effects that the finished steel strand bundle and the mandril are fastened and connected into a whole by the banding ring, and the mandril effectively drives the finished steel strand bundle to move together; threaded connection is adopted between the mandril and the finished steel strand bundle, so that the strength is reliable, the replacement is convenient, the finished steel strand bundle can pass through the construction duct effectively and safely under the dragging of traction equipment, winding among steel strands and deformation are avoided, and construction efficiency is high.
Description
Technical field
The present invention relates to the tractor of finished product steel wire bundle, more particularly to be a kind of tractor of finished product steel wire bundle cored bar.
Background technology
, it is necessary to which many prestressing tendons are made in order in building, road and bridge construction, penetrate in the prestressed pore passage prepared, i.e., in corrugated conduit.Finished product steel wire bundle（Also known as " comb compiles beam "）Worn in corrugated conduit when sending, it is necessary to set a special tractor in finished product steel wire bundle front end.The quality of retractor structures design and the convenience of application, the quality to construction have a significant impact.
Chinese utility model patent 201120371131.2 discloses the threading-in device that a kind of steel strand wires comb compiles beam, the threading-in device includes lead seat and connects head, lead seat outer wall is threaded, connect head and contain front end circular cone and rear end hollow cylinder, the axle center of circular cone is provided with through hole, the inwall of hollow cylinder is provided with internal thread, connects an inwall for rear end hollow cylinder and is connected with lead seat outer wall thread, connecting an other end has suspension ring.
Above-mentioned patent of the prior art exists following not enough：1st, have between lead seat and suspension ring one it is special connect head, connect head for front end circular cone, rear end hollow cylinder, and have internal thread in corresponding construction, processing is inconvenient.2nd, at the construction field (site), it is necessary to will first connect head connects lead seat, then the hollow cylinder that a rear end is connected in suspension ring connection will be connected, construction procedure is relatively complicated.3rd, connecting head and connecting suspension ring needs that different specifications are made according to the radical of steel strand wires, will so prepare a set of of different size at the construction field (site) and connect head and connect suspension ring, and use inconvenience.
The content of the invention
Plug two ends are fastened on finished product steel wire bundle and traction draw ring respectively it is an object of the invention to overcome the deficiencies of the prior art and provide one kind, with a kind of simple in construction, the tractor of finished product steel wire bundle cored bar of convenient connection pulling equipment.
Solving the technical scheme of above-mentioned technical problem is：A kind of tractor of finished product steel wire bundle cored bar, the tractor includes：Hoop, plug and traction draw ring；Plug band conehead one end insertion finished product steel wire bundle central end, the threaded other end of plug is screwed mounted in traction draw ring screwed hole one end of traction draw ring, and the other end of traction draw ring is provided with the draw ring of connection pulling equipment；The hoop insertion is sleeved on the peripheral edge portion and banding of plug insertion finished product steel wire bundle on finished product steel wire bundle；The outer profile size of the tractor is less than follow-up traction finished product steel wire bundle and wears the construction duct internal diameter sent.
Preferred scheme is：Described plug band conehead one end is that bottom face is big, along plug axis to the conical horn shape of threaded another extreme direction decreasing dimensions.
Preferred scheme is：The draw ring hole size of the traction draw ring other end and pulling equipment or the drawing supporting setting of instrument.
The beneficial effects of the invention are as follows：The present invention overcomes the shortcoming of prior art, and advantages of the present invention is as follows：
1）Finished product steel wire bundle is fastenedly connected and is integrated by the present invention using hoop with plug, makes plug effectively drive finished product steel wire bundle to move together；Tractor of the present invention is formed using threaded connection between plug and traction draw ring, intensity is reliable, change convenient；Under pulling equipment dragging, energy effective and safe is by finished product steel wire bundle through construction duct bellows, and perforation procedure is avoided that winding and deformation between steel strand wires, and efficiency of construction is high.
2）The dedicated extruded equipment and tool construction that finished product steel wire bundle end is fixed on hoop are simple, and low cost, gripping effect is good, and hoop can be firmly integrated with plug and finished product steel wire bundle.
3）Connection screw thread of the present invention between plug and traction draw ring can use standard size, and with easy to process, interchangeability is good, uses the advantage for changing convenient, low cost.
Brief description of the drawings
Fig. 1 is that the present invention is assemblied in structural representation on finished product steel wire bundle；
Fig. 2 is A-A sectional views in Fig. 1；
Fig. 3 is the sectional view in Fig. 1；
Fig. 4 is the P portions enlarged drawing in Fig. 3.
《Number explanation in accompanying drawing》
1：Finished product steel wire bundle；1a：Single steel strand；2：Hoop；2a：Technique impression；3：Plug；3a：Plug conical end；3b：Plug male end；4：Draw draw ring；4a, traction draw ring screwed hole；4b：Draw ring.
Embodiment
Embodiments of the invention are described in further detail below in conjunction with the accompanying drawings.
Fig. 1 is that the present invention is assemblied in structural representation on finished product steel wire bundle；Fig. 2 is A-A sectional views in Fig. 1；Fig. 3 is the sectional view in Fig. 1；Fig. 4 is the P portions enlarged drawing in Fig. 3.
The present invention provides a kind of tractor of finished product steel wire bundle cored bar, and the tractor includes：Hoop 2, plug 3 and traction draw ring 4；The plug 3 is with the central end of conehead one end insertion finished product steel wire bundle 1, and the threaded other end of plug 3 is screwed mounted in traction draw ring screwed hole 4a one end of traction draw ring 4, and the other end of traction draw ring 4 is provided with the draw ring 4b of connection pulling equipment；The insertion of hoop 2 is sleeved on the peripheral edge portion and banding of the insertion finished product of plug 3 steel wire bundle 1 on finished product steel wire bundle 1；The outer profile size of the tractor is less than follow-up traction finished product steel wire bundle 1 and wears the construction duct internal diameter sent.
The plug 3 is that bottom face is big with conehead one end, along the axis of plug 3 to the conical horn shape of threaded another extreme direction decreasing dimensions.
The draw ring 4b hole sizes of the traction other end of draw ring 4 and pulling equipment or the drawing supporting setting of instrument.
In particular, hoop 2 in a kind of tractor for finished product steel wire bundle cored bar that the present invention is provided is tubular annulus, the inwall of hoop 2 is pressed on finished product steel wire bundle 1, the size of the internal diameter of hoop 2, is finished product steel wire bundle radical equipped as required to determine；The position that hoop 2 is sleeved on finished product steel wire bundle 1 is to be located at the peripheral edge portion that plug 3 inserts finished product steel wire bundle 1, extrudes hoop 2 with dedicated extruded equipment, leaves technique impression 2a after extruding on the external diameter of hoop 2；Hoop 2 is integrated with finished product steel wire bundle 1 and plug 3 after extruding, is realized when pulling plug 3, the servo-actuated effect of finished product steel wire bundle 1.
The internal diameter of hoop 2 is determined according to the steel strand wires radical for needing to use in practice, can be changed in the range of 30~200mm；The external diameter of hoop 2 is less than the internal diameter of construction duct bellows.
As shown in Figure 1, Figure 3, the left end of the plug 3 inserts and is wrapped in the central end of finished product steel wire bundle 1, and the left end band conehead of plug 3 is in conical horn shape, and the right-hand member of plug 3 is plug male end 3b；The structure of the conical horn shape of plug 3 is：Left end with conehead is that bottom face is big, along the axis of plug 3 to the conical horn shape of threaded right-hand member direction decreasing dimensions.Effect of the plug 3 with conehead be：When the right-hand member of plug 3 when pulled, drive finished product steel wire bundle 1 to move together using the circular cone inclined-plane of plug 3, realize plug 3 and the integrative-structure of finished product steel wire bundle 1, i.e., when plug 3 when pulled, finished product steel wire bundle 1 is servo-actuated effect.
The plug male end 3b and traction draw ring screwed hole 4a sizes can be made into standard size, and above-mentioned part is easy to fabricate and exchanged.
The left end of the traction draw ring 4 is connected for traction draw ring screwed hole 4a, traction draw ring screwed hole 4a with the plug male end 3b of the right-hand member of plug 3, and the right-hand member of traction draw ring 4 has a draw ring 4b and pulling equipment or drawing instrument（Figure is not regarded）Connection.Pulling equipment or drawing instrument generally select haulage cable（Figure is not regarded）Haulage cable one end passes through and is fixed tightly on the draw ring 4b of traction draw ring 4, the haulage cable other end is connected with hoist engine again, hoist engine is started to be drawn, the movement of whole finished product steel wire bundle 1 smoothly in bellows can be driven, finished product steel wire bundle 1 is drawn into removal bellows, then carries out next step tension steel strand process.
The course of work of present example is as follows：
First, it is finished product steel wire bundle 1 the single steel strand 1a combs of regulation radical to be compiled into arrangement, by plug 3 with the central end of conehead one end insertion finished product steel wire bundle 1, keeps the external screw thread of the right-hand member of plug 3 to be exposed at the outside of finished product steel wire bundle 1, as shown in Figure 1；
Secondly, hoop 2 is inserted in the peripheral edge portion that plug 3 inserts finished product steel wire bundle 1, hoop 2 is extruded with special extrusion equipment, makes the banding of hoop 2 on finished product steel wire bundle 1, hoop 2 and the plug conical end 3a extruding of finished product steel wire bundle 1 and the left end of plug 3 are integrated.As shown in Figure 2；
Finally, the traction draw ring screwed hole 4a for drawing the left end of draw ring 4 is connected on the plug male end 3b of the right-hand member of plug 3, forms structure as shown in Figure 1, Figure 3.
One embodiment of the present of invention is described in detail above, the content is only presently preferred embodiments of the present invention, it is impossible to be considered as limit the present invention practice scope.All impartial changes done according to the present invention or improvement, without substantial innovative change, in the covering scope that the present invention all should be belonged to.
Claims (3)
1. a kind of tractor of finished product steel wire bundle cored bar, it is characterised in that the tractor includes：Hoop（2）, plug（3）With traction draw ring（4）；The plug（3）Band conehead one end insertion finished product steel wire bundle（1）Central end, plug（3）The threaded other end is screwed mounted in traction draw ring（4）Traction draw ring screwed hole（4a）One end, draws draw ring（4）The other end be provided with connection pulling equipment draw ring（4b）；The hoop（2）Insertion is sleeved on plug（3）Insert finished product steel wire bundle（1）Peripheral edge portion and banding in finished product steel wire bundle（1）On；The outer profile size of the tractor is less than follow-up traction finished product steel wire bundle（1）Wear the construction duct internal diameter sent.
2. a kind of tractor of finished product steel wire bundle cored bar according to claim 1, it is characterised in that the plug（3）Band conehead one end is that bottom face is big, along plug（3）Conical horn shape from axis to threaded another extreme direction decreasing dimensions.
3. a kind of tractor of finished product steel wire bundle cored bar according to claim 1, it is characterised in that the traction draw ring（4）The draw ring of the other end（4b）Hole size and pulling equipment or the drawing supporting setting of instrument.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013103415153A CN103388404A (en) | 2013-08-06 | 2013-08-06 | Tractor provided with mandril and used for finished steel strand bundle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013103415153A CN103388404A (en) | 2013-08-06 | 2013-08-06 | Tractor provided with mandril and used for finished steel strand bundle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103388404A true CN103388404A (en) | 2013-11-13 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013103415153A Pending CN103388404A (en) | 2013-08-06 | 2013-08-06 | Tractor provided with mandril and used for finished steel strand bundle |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101173546A (en) * | 2007-11-22 | 2008-05-07 | 广西壮族自治区公路桥梁工程总公司 | Cable reeving device and its reeving method |
| JP2009127283A (en) * | 2007-11-22 | 2009-06-11 | Jsd:Kk | Method of anchoring plurality of prestressing steel strands by after-bond method, and tool for use therein |
| CN101660354A (en) * | 2009-09-11 | 2010-03-03 | 中铁大桥局集团第五工程有限公司 | Prestress steel strand penetrating device |
| CN202227278U (en) * | 2011-09-30 | 2012-05-23 | 天津鑫坤泰预应力专业技术有限公司 | Penetrating guide for carding and braiding steel strands |
| CN203487792U (en) * | 2013-08-06 | 2014-03-19 | 天津鑫坤泰预应力专业技术有限公司 | Finished steel strand bundle tractor with core rod |
-
2013
- 2013-08-06 CN CN2013103415153A patent/CN103388404A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101173546A (en) * | 2007-11-22 | 2008-05-07 | 广西壮族自治区公路桥梁工程总公司 | Cable reeving device and its reeving method |
| JP2009127283A (en) * | 2007-11-22 | 2009-06-11 | Jsd:Kk | Method of anchoring plurality of prestressing steel strands by after-bond method, and tool for use therein |
| CN101660354A (en) * | 2009-09-11 | 2010-03-03 | 中铁大桥局集团第五工程有限公司 | Prestress steel strand penetrating device |
| CN202227278U (en) * | 2011-09-30 | 2012-05-23 | 天津鑫坤泰预应力专业技术有限公司 | Penetrating guide for carding and braiding steel strands |
| CN203487792U (en) * | 2013-08-06 | 2014-03-19 | 天津鑫坤泰预应力专业技术有限公司 | Finished steel strand bundle tractor with core rod |
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Application publication date: 20131113 |