CN104149193A - Tensioning and anchoring device for concrete poles - Google Patents
Tensioning and anchoring device for concrete poles Download PDFInfo
- Publication number
- CN104149193A CN104149193A CN201410329431.2A CN201410329431A CN104149193A CN 104149193 A CN104149193 A CN 104149193A CN 201410329431 A CN201410329431 A CN 201410329431A CN 104149193 A CN104149193 A CN 104149193A
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- CN
- China
- Prior art keywords
- tensioning
- stretch
- draw
- tensioning head
- head
- 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.)
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28B23/00—Arrangements specially adapted for the production of shaped articles with elements wholly or partly embedded in the moulding material; Production of reinforced objects
- B28B23/02—Arrangements specially adapted for the production of shaped articles with elements wholly or partly embedded in the moulding material; Production of reinforced objects wherein the elements are reinforcing members
- B28B23/04—Arrangements specially adapted for the production of shaped articles with elements wholly or partly embedded in the moulding material; Production of reinforced objects wherein the elements are reinforcing members the elements being stressed
- B28B23/043—Wire anchoring or tensioning means for the reinforcements
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28B23/00—Arrangements specially adapted for the production of shaped articles with elements wholly or partly embedded in the moulding material; Production of reinforced objects
- B28B23/02—Arrangements specially adapted for the production of shaped articles with elements wholly or partly embedded in the moulding material; Production of reinforced objects wherein the elements are reinforcing members
- B28B23/04—Arrangements specially adapted for the production of shaped articles with elements wholly or partly embedded in the moulding material; Production of reinforced objects wherein the elements are reinforcing members the elements being stressed
- B28B23/06—Arrangements specially adapted for the production of shaped articles with elements wholly or partly embedded in the moulding material; Production of reinforced objects wherein the elements are reinforcing members the elements being stressed for the production of elongated articles
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- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Chemical & Material Sciences (AREA)
- Ceramic Engineering (AREA)
- Mechanical Engineering (AREA)
- Piles And Underground Anchors (AREA)
Abstract
The invention relates to a tensioning and anchoring device for concrete poles and belongs to the technical field of electric power transmission. The tensioning and anchoring device comprises a tensioning head used for fixedly connecting with a rebar, a tensioning puller used for connecting a jack and pulling the tensioning head and a threaded fastening support mounted on the tensioning head through a thread and used for stopping on a steel form to retain tensioning state of the tensioning head. The threaded fastening support is an anchoring plate comprising a plate bottom and bosses protruded on the front ends of the plate bottom. The bosses are provided with front end faces for fitting with the steel form in a blocking way. A thread hole is formed in the center of the plate bottom and matched with the thread of the tensioning head. According to the arrangement, the anchoring plate sleeving the tensioning head is rotated so as to be abutted against the steel form in a rapid and fastened manner. Besides, with large stressed area of the anchoring plate, tensioning force is evenly and stably applied to the steel form.
Description
Technical field
The present invention relates to a kind of concurrent stretching and anchoring device, belong to electric power conveying technology field.
Background technology
Along with the fast development of China's power industry, bearing capacity and life requirement to concurrent are also more and more higher, particularly prestressed concrete electric pole, and the low and long service life of its price, on market, demand is large.But the prestressed concrete electric pole that bearing capacity is larger, its stretching force bearing is also larger, and this just has higher requirement to the processing of prestressed concrete electric pole.In the process of manufacture of prestressed concrete electric pole, stretch-draw is critical process, and it directly has influence on the product quality of electric pole.
Conventional stretching and anchoring device generally comprises stretch-draw traction piece, tensioning head, fastening support part etc.The patent No. is that 201320142479.3 Chinese patent discloses a kind of tensioning equipment for the large large tip of moment of flexure footpath prestressed reinforced concrete electric pole, and its stretch-draw traction piece is that stretch-draw pawl, tensioning head are steel plate ring, and fastening support part is fixed disk, also comprises support.The pulling shaft of jack is by tensioning nut and the screwed connection of stretch-draw pawl, and stretch-draw pawl is connected with steel plate ring, and Bar Anchorage is on steel plate ring.Described fixed disk is sheathed on steel plate ring outer wall, fixed disk is provided with the screw rod for withstanding punching block, and the pulling shaft of jack is through the through hole of support, and support withstands the flanged plate of punching block by the spike arranging on support, its spike is dismountable movable supporting feet, and is arranged in the spike cover on support.This tensioning equipment is connected transmission stretching force with steel plate ring by stretch-draw pawl, because stretch-draw pawl is connected with steel plate ring by longer hook pawl, under larger stretching force effect, hook pawl and be easily out of shape and cause stretching force suffered on steel plate ring inhomogeneous, also easily cause stretch-draw pawl and steel plate ring distortion.This tensioning equipment withstands punching block by the screw rod on fixed disk, lifting surface area between screw rod and punching block is very little, screw rod easily deforms compared with large pressure owing to being subject to, cause steel plate ring loosening, deformed bar stretch-draw effect dies down and even disappears, and the each screw rod of fastening needs of screw rod operates separately, operation is loaded down with trivial details.
Summary of the invention
The object of the present invention is to provide a kind of concurrent stretching and anchoring device of anchor disc as fastening support part that use, to solve the problem of fastening support part complex operation, discontinuity.
In order to realize above object, technical scheme of the present invention is as follows:
A kind of concurrent stretching and anchoring device, comprise for the tensioning head of the reinforcing bar that is connected, for be connected with jack and draw the stretch-draw traction piece of tensioning head, by Screw assembly on tensioning head for block on punching block to keep the screw threads for fastening support member of tensioning state of tensioning head, described screw threads for fastening support member is anchor disc, anchor disc comprises the boss of trying to get to the heart of a matter and being convexly set in the front end of trying to get to the heart of a matter, boss has the front end face for coordinating with punching block block, described in the center of trying to get to the heart of a matter be provided with and the screwed hole of described tensioning head threaded engagement.
Described boss is the annular boss on trying to get to the heart of a matter described in being fixedly connected on, or the upper edge of trying to get to the heart of a matter described in the being fixedly connected on circumferential equally distributed projection of trying to get to the heart of a matter.
Described stretch-draw traction piece is shaft-like tension rod, described tensioning head inside is provided with the through hole entering for the head of tension rod, on described through-hole wall, edge is circumferentially evenly arranged at intervals with the plural link plate extending to described through hole center, tension rod head is along being circumferentially evenly arranged at intervals with the plural stretch-draw pawl for coordinating with described link plate block, between described spaced link plate, leave the link plate gap that can pass through for stretch-draw pawl, between described spaced stretch-draw pawl, leave the stretch-draw pawl gap of passing through for link plate.
The cylindrical shell of establishing described through hole in described tensioning head comprises turns edge with the annular of being located at cylindrical shell periphery, the described annular upper edge that turns edge is circumferentially arranged at intervals with the reinforced hole for connecting reinforcement, the afterbody of described cylindrical shell is provided with external screw thread, is connected with the try to get to the heart of a matter screwed hole threaded engagement at center of described anchor disc.
Described link plate and the face of corresponding stretch-draw pawl contact are the inclined-plane that cooperatively interacts or the vertical plane perpendicular to tension rod axial line.
The present invention is sleeved on the anchor disc on tensioning head by setting, after stretching force is stable, can its top be pressed on punching block by rotation anchor disc, can realize anchor disc presses the Quick fastening top of punching block, and anchor disc is pressed by its Pan Bi and punching block top around, adopt outer fixed form, lifting surface area is large, and stretching force is acted on punching block uniformly and stably.In addition, anchor disc Pan Bi has surrounded a space, and tensioning head is positioned at this interior volume, and tension rod is through tensioning head inside, and three members are from inside to outside socketed, and compact conformation, has saved space.
Further, the present invention adopts interior stretch-draw, and stretch-draw pawl and link plate are set respectively on tension rod and tensioning head, realizes fastening and the disengagement of tension rod and tensioning head by the relative position that rotates the two, has realized tension rod and has been connected with the quick and convenient of tensioning head.By being set, shaft-like tension rod is connected with jack piston rod, the body of rod axial stable delivery of the stretching force that can make jack by tension rod is to tensioning head, can not produce the deflection of stretching force, stretch-draw pawl is the fixed lobe on tension rod, under the effect of larger stretching force, tension rod and stretch-draw pawl are all difficult for producing distortion, have effectively ensured even, the stable delivery of stretching force.
Brief description of the drawings
Fig. 1 is the structural representation of concurrent stretching and anchoring device embodiment of the present invention;
Fig. 2 is the cutaway view of the anchor disc in Fig. 1;
Fig. 3 is the side view of the anchor disc in Fig. 1;
Fig. 4 is the side view of the tension rod in Fig. 1;
Fig. 5 is the side view of the tensioning head in Fig. 1.
Detailed description of the invention
The embodiment of concurrent stretching and anchoring device of the present invention:
As Figure 1-5, concurrent stretching and anchoring device of the present invention comprise for the tensioning head 3 of the reinforcing bar that is connected, for be connected with jack and draw the stretch-draw draw-gear of tensioning head 3 and by Screw assembly on tensioning head 3 for block on punching block 7 to keep the screw threads for fastening support member of tensioning head 3 in tensioning state.Described screw threads for fastening support member is anchor disc 4, anchor disc 4 comprises tries to get to the heart of a matter 402 and be convexly set in the boss 401 of the front end of trying to get to the heart of a matter, boss 401 has the front end face for coordinating with punching block block, described in 402 centers of trying to get to the heart of a matter be provided with and the screwed hole of described tensioning head 3 threaded engagement.
In the above-described embodiments, described boss 401 is the upper edge of trying to get to the heart of a matter described in the being fixedly connected on circumferential equally distributed projection of trying to get to the heart of a matter.
In the above-described embodiments, described stretch-draw traction piece is shaft-like tension rod 2, described tensioning head 3 comprises that afterbody is provided with externally threaded cylindrical shell 303 and turns edge with the annular of being located at cylindrical shell 303 head peripheries, the described annular upper edge that turns edge is circumferentially arranged at intervals with the reinforced hole 301 for connecting reinforcement, deformed bar passes reinforced hole 301 and is fixed on tensioning head 3, described cylindrical shell 303 inside are provided with the through hole passing through for tension rod 2 heads, on described through-hole wall, edge is circumferentially evenly arranged at intervals with the plural link plate 302 extending to described through hole center, tension rod 2 heads are along being circumferentially evenly provided with the plural stretch-draw pawl 202 for coordinating with described link plate 302 blocks, stretch-draw pawl 202 is along evenly projection spaced apart of the tension rod body of rod 201 outer peripheral faces, between described spaced link plate 302, leave the link plate gap that can pass through for stretch-draw pawl 202, between described spaced stretch-draw pawl 202, leave the stretch-draw pawl gap of passing through for link plate 302.Tension rod 2 afterbody outer walls are provided with connecting thread and are connected with the screw thread on jack piston rod 6 by attaching nut 5.The try to get to the heart of a matter screwed hole threaded engagement at center of the external screw thread of described cylindrical shell 303 afterbodys and described anchor disc is connected.
In the above-described embodiments, the face that link plate 302 contacts with stretch-draw pawl 202 is the inclined-plane cooperatively interacting.
In the above-described embodiments, be connected and be provided with stretch-draw spike 1 with jack, described stretch-draw spike 1 comprises supporting disk 102 and is welded to connect the support cylindrical shell 101 on supporting disk, described support cylindrical shell 101 is welded on the cylinder on supporting disk 102 for one end, the other end that supports cylindrical shell 101 has can push up the planar annular vertical with support tube body axis being pressed on punching block 7, and described supporting disk 102 centers are provided with the through hole passing through for jack piston rod 6.
In the above-described embodiments, in the periphery of the boss 401 of described anchor disc 4, be provided with rotating handle.
Above-described embodiment in use, stretch-draw spike is fixed on jack holder, the support cylindrical shell of stretch-draw spike 101 tops are pressed on punching block 7, jack piston rod 6 is passed to the through hole at stretch-draw spike supporting disk 102 centers and is connected with tension rod, after deformed bar is also fixed through reinforced hole corresponding on tensioning head 3 301, tensioning head 3 is connected in to anchor disc 4 by the external screw thread on its cylindrical shell 303 afterbodys and tries to get to the heart of a matter in the screwed hole at 402 centers, and rotate anchor disc 4 to suitable position.Stretch-draw pawl 202 on tension rod 2 heads is corresponding with the link plate gap in tensioning head cylindrical shell 303, make tension rod 2 through tensioning head 3, rotating tension rod 2 makes stretch-draw pawl 202 corresponding with link plate 302 positions again, the connecting thread of tension rod 2 afterbodys and attaching nut 5 are tightened and be connected, and jack piston rod 6 is connected with attaching nut 5.Start jack, the deformed bar being connected on tensioning head 3 is carried out to stretch-draw, when stretch-draw reaches predetermined elongation value or predetermined stretching force, stop stretch-draw and also stablize the pressure of jack, screw anchor disc 4 anchor disc 4 block tops are pressed on punching block 7, decompression, and by extremely corresponding with tensioning head link plate 302 positions the stretch-draw pawl gap rotation on tension rod 2, tension rod 2 is exited from tensioning head 3, complete stretch-draw operation.Now, the stretching force on deformed bar is passed to anchor disc 4 by tensioning head 3, and is evenly passed on punching block 7 by the dish wall 401 of anchor disc 4.
In other embodiments of the invention, described boss 401 is the annular boss on trying to get to the heart of a matter described in being fixedly connected on.
Described tension rod 2 afterbodys and jack piston rod 6 weld together in other embodiments of the invention.
In other embodiments of the invention, the face that described link plate 302 contacts with corresponding stretch-draw pawl 202 is the vertical plane perpendicular to tension rod axial line.
In other embodiments of the invention, described stretch-draw spike 1 adopts and structure identical in prior art.
Claims (5)
1. a concurrent stretching and anchoring device, comprise the tensioning head (3) for the reinforcing bar that is connected, for be connected and draw the stretch-draw traction piece of tensioning head with jack, by Screw assembly on tensioning head (3) for block on punching block to keep the screw threads for fastening support member of tensioning state of tensioning head (3), it is characterized in that: described screw threads for fastening support member is anchor disc (4), anchor disc (4) comprises the boss (401) of trying to get to the heart of a matter (402) and being convexly set in the front end of trying to get to the heart of a matter, boss (401) has the front end face for coordinating with punching block (7) block, described trying to get to the heart of a matter (402) center is provided with the screwed hole with described tensioning head (3) threaded engagement.
2. concurrent stretching and anchoring device according to claim 1, it is characterized in that: described boss (401) is the annular boss on trying to get to the heart of a matter described in being fixedly connected on, or the upper edge of trying to get to the heart of a matter described in the being fixedly connected on circumferential equally distributed projection of trying to get to the heart of a matter.
3. concurrent stretching and anchoring device according to claim 1 and 2, it is characterized in that: described stretch-draw traction piece is shaft-like tension rod (2), described tensioning head (3) inside is provided with the through hole entering for the head of tension rod (2), on described through-hole wall, edge is circumferentially evenly arranged at intervals with the plural link plate (302) extending to described through hole center, tension rod (2) head is along being circumferentially evenly arranged at intervals with the plural stretch-draw pawl (202) for coordinating with described link plate block, between described spaced link plate (302), leave the link plate gap that can pass through for stretch-draw pawl (202), between described spaced stretch-draw pawl (202), leave the stretch-draw pawl gap of passing through for link plate (302).
4. concurrent stretching and anchoring device according to claim 3, it is characterized in that: in described tensioning head (3) comprises, establish the cylindrical shell (303) of described through hole and be located at the peripheral annular of cylindrical shell (303) and turn edge, the described annular upper edge that turns edge is circumferentially arranged at intervals with the reinforced hole (301) for connecting reinforcement, the afterbody of described cylindrical shell (303) is provided with external screw thread, is connected with the try to get to the heart of a matter screwed hole threaded engagement at center of described anchor disc.
5. concurrent stretching and anchoring device according to claim 3, is characterized in that: described link plate (302) and the face of corresponding stretch-draw pawl (202) contact are the inclined-plane that cooperatively interacts or the vertical plane perpendicular to tension rod (2) axial line.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410329431.2A CN104149193B (en) | 2014-07-10 | 2014-07-10 | A kind of concurrent stretching and anchoring device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410329431.2A CN104149193B (en) | 2014-07-10 | 2014-07-10 | A kind of concurrent stretching and anchoring device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104149193A true CN104149193A (en) | 2014-11-19 |
| CN104149193B CN104149193B (en) | 2016-11-23 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410329431.2A Active CN104149193B (en) | 2014-07-10 | 2014-07-10 | A kind of concurrent stretching and anchoring device |
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| Country | Link |
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| CN (1) | CN104149193B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106113251A (en) * | 2016-06-30 | 2016-11-16 | 河南鼎力杆塔股份有限公司 | Frock checked by a kind of jack |
| CN106182401A (en) * | 2016-07-29 | 2016-12-07 | 河南鼎力杆塔股份有限公司 | The intelligent tensioning system that a kind of concurrent produces |
| CN108908693A (en) * | 2018-06-29 | 2018-11-30 | 周兆弟 | A kind of prestressed, reinforced stretching machine |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20050188526A1 (en) * | 2002-03-21 | 2005-09-01 | Kim Seung S. | Method and apparatus of manufacturing electric pole |
| CN102092095A (en) * | 2009-12-15 | 2011-06-15 | 北京中铁房山桥梁有限公司 | Device and method for transversely tensioning prestress of trapezoid sleeper |
| CN202200392U (en) * | 2011-07-29 | 2012-04-25 | 广东建华管桩有限公司 | Tensioning component for tensioning main reinforcements of pre-stressed pipe piles |
| CN202764001U (en) * | 2012-08-06 | 2013-03-06 | 山东中能杆塔有限公司 | Annular concrete pole prestress inward-tension device |
| CN203957119U (en) * | 2014-07-10 | 2014-11-26 | 国家电网公司 | Concurrent stretching and anchoring device |
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2014
- 2014-07-10 CN CN201410329431.2A patent/CN104149193B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20050188526A1 (en) * | 2002-03-21 | 2005-09-01 | Kim Seung S. | Method and apparatus of manufacturing electric pole |
| CN102092095A (en) * | 2009-12-15 | 2011-06-15 | 北京中铁房山桥梁有限公司 | Device and method for transversely tensioning prestress of trapezoid sleeper |
| CN202200392U (en) * | 2011-07-29 | 2012-04-25 | 广东建华管桩有限公司 | Tensioning component for tensioning main reinforcements of pre-stressed pipe piles |
| CN202764001U (en) * | 2012-08-06 | 2013-03-06 | 山东中能杆塔有限公司 | Annular concrete pole prestress inward-tension device |
| CN203957119U (en) * | 2014-07-10 | 2014-11-26 | 国家电网公司 | Concurrent stretching and anchoring device |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106113251A (en) * | 2016-06-30 | 2016-11-16 | 河南鼎力杆塔股份有限公司 | Frock checked by a kind of jack |
| CN106182401A (en) * | 2016-07-29 | 2016-12-07 | 河南鼎力杆塔股份有限公司 | The intelligent tensioning system that a kind of concurrent produces |
| CN106182401B (en) * | 2016-07-29 | 2019-05-14 | 河南鼎力杆塔股份有限公司 | A kind of intelligent tensioning system of concurrent production |
| CN108908693A (en) * | 2018-06-29 | 2018-11-30 | 周兆弟 | A kind of prestressed, reinforced stretching machine |
| CN108908693B (en) * | 2018-06-29 | 2024-03-15 | 周兆弟 | Steel bar prestress tensioning machine |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104149193B (en) | 2016-11-23 |
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