CN203937017U - Stretch-draw assembly for the production of end-plate-free prestressed-concrete pile - Google Patents

Stretch-draw assembly for the production of end-plate-free prestressed-concrete pile Download PDF

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Publication number
CN203937017U
CN203937017U CN201420289323.2U CN201420289323U CN203937017U CN 203937017 U CN203937017 U CN 203937017U CN 201420289323 U CN201420289323 U CN 201420289323U CN 203937017 U CN203937017 U CN 203937017U
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China
Prior art keywords
stretch
cutting ferrule
aperture
anchor ring
plate
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Withdrawn - After Issue
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CN201420289323.2U
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Chinese (zh)
Inventor
朱克平
张凤臣
徐飞
陆军
吴海涛
张前永
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JIANGSU GUFENG PIPE GROUP CO Ltd
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JIANGSU GUFENG PIPE GROUP CO Ltd
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Priority to CN201420289323.2U priority Critical patent/CN203937017U/en
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Abstract

The utility model provides a kind of stretch-draw assembly for the production of end-plate-free prestressed-concrete pile, comprises and is provided with the stretch board of stretch-draw through hole, the tensioning screw rod of some couplings, cutting ferrule nut and anchor ring also comprise support column, are provided with the baffle plate of wearing muscle hole.Cutting ferrule nut has the end of thread and the cutting ferrule end of perforation, and the aperture of cutting ferrule end is less than the aperture of the end of thread; It is semiorbicular anchor ring cover that the cutting ferrule nut connecting at each double thread and the inside of tensioning screw rod are provided with a pair of cross section; The internal diameter of anchor ring cover is greater than the muscle portion diameter of presstressed reinforcing steel and is less than its pier nose diameter; The external diameter of anchor ring is greater than the aperture of cutting ferrule nut cutting ferrule end and is less than the aperture of its end of thread.The utility model is simple in structure, easy to use.Aborning, use the utility model, can reduce the use of end plate, make the simple and reasonable of finished peg, improve the quality of finished peg; Rapidoprint and the expense of saving end plate, reduce production costs; Simplify the production process of prestressed-concrete pile, enhance productivity.

Description

Stretch-draw assembly for the production of end-plate-free prestressed-concrete pile
Technical field
The utility model relates to a kind of building mould, especially relates to a kind of accessory part of the mould for the production of prestressed concrete square pile or pile tube.
Background technology
China develops and applies prestressed-concrete pile since the sixties in 20th century.Through the development of five more than ten years, prestressed-concrete pile is widely used in the foundation engineering of all kinds of buildings or structures, as fields such as harbour, harbour, high-rise, public building, general industry and civil buildings, highway, bridges.At present, the prestressed-concrete pile that China is mainly used has pile tube and square pile.The structure member of these two kinds of stakes is similar, mainly comprises the parts such as steel reinforcement cage, concrete, end plate, anchor ear plate.Concrete and steel reinforcement cage form pile body.Steel reinforcement cage is comprised of non-prestressing tendon, deformed bar and tie hoop, by seam welder, tie hoop is welded on non-prestressed and presstressed reinforcing steel.End plate is assembled mutually with steel reinforcement cage, is located at pile body two ends, conventionally, the end plate near stretching end is called to end plate, and the end plate near stiff end is called to end tailgate.Anchor ear plate and end plate be by welding or the mode such as riveted joint is fixed together, thereby make the further anchor ear of end plate on pile body.
The assembling of end plate and steel reinforcement cage comprises following key step: (1) forms steel reinforcement cage by the presstressed reinforcing steel after non-prestressing tendon, heading and stirrup by seam welder roll welding; (2) end plate and the welding of anchor ear plate are formed to pile crown; (3) presstressed reinforcing steel after heading is first passed to end plate by wearing muscle hole, then move to counter sink, heading is stuck in counter sink.By above-mentioned steps, complete after the assembling of end plate and steel reinforcement cage, the mould that the assembly of end plate and steel reinforcement cage is moved into prefabricated pile carries out stretch-draw.
At present, utilize stretching machine to carry out prestressed stretch-draw, conventionally adopt tensioning head method.The pass order that adopts tensioning head method to carry out power in the process of stretch-draw is stretching machine → tensioning head → stretch-draw screw mandrel → stretch board → end tailgate → presstressed reinforcing steel → end plate → stiff end.From the pass order of above power, end plate and end tailgate all will bear prestressing force, thereby realize, presstressed reinforcing steel are applied to prestressing force.
When tensioned prestressing bar, end plate plays an important role.But, while utilizing end plate to carry out stretch-draw, there is following problem: the processing and fabricating program of (1) end plate is many, and material and processing charges are high; (2) when end plate and anchor ear plate are assembled, need to weld or rivet, increased operation, take cost of labor and device resource; (3) end plate material is thick and heavy, and anchor ear sheet material matter is thin light, all easily causes the distortion of anchor ear plate in the process of assembling, transportation, storage and use, affects finished peg quality; (4) in finished peg, include end plate, increased the cost of finished peg.
In sum, in prestressed-concrete pile, reduce the use of end plate, can reach and save finished peg production cost, improve finished peg quality, reduce production process, the object of enhancing productivity.
Summary of the invention
Technical problem: the deficiency existing for prior art, provides a kind of stretch-draw assembly for the production of end-plate-free prestressed-concrete pile.
Technical scheme: the stretch-draw assembly for the production of end-plate-free prestressed-concrete pile that the utility model provides, comprise stretch board, some tensioning screw rods corresponding with each presstressed reinforcing steel position, described stretch board is provided with the stretch-draw through hole mating with tensioning screw rod, its innovation is, it also comprises support column, baffle plate, cutting ferrule nut and anchor ring;
Described baffle plate and stretch board be arranged in parallel, and its shape, size are mated with the mould of concrete-pile, and baffle plate is provided with corresponding with each presstressed reinforcing steel position muscle hole of wearing; Support column vertical support is between stretch board and baffle plate; The quantity of the quantity of cutting ferrule nut and tensioning screw rod with its coupling is identical, and cutting ferrule nut has the end of thread and the cutting ferrule end of perforation, and the aperture of cutting ferrule end is less than the aperture of the end of thread; The cutting ferrule nut linking together at each double thread and the inside of tensioning screw rod, being equipped with a pair of cross section is semiorbicular anchor ring cover; The internal diameter of every anchor ring cover is greater than the muscle portion diameter of presstressed reinforcing steel, is less than the pier nose diameter of presstressed reinforcing steel; The external diameter of every anchor ring is greater than the aperture of cutting ferrule nut cutting ferrule end, is less than the aperture of the cutting ferrule nut end of thread.
For being easy to realize the balanced support of support column between stretch board and baffle plate, described support column arranges four.
Installation for ease of support column between stretch board and baffle plate, described support column has at least one end to be fixed on stretch board or baffle plate.
Preferably, for making support column and stretch board form an integral body to be applicable to produce the concrete-pile of all size, one end of described support column is fixed on stretch board, and the other end is not fixed with baffle plate, and baffle plate becomes an independently flat board.
Beneficial effect: the utility model is simple in structure, easy to use.Use the utility model to produce prestressed-concrete pile, reduced the use of end plate, make the simple and reasonable of finished peg, improved the quality of finished peg; Rapidoprint and the expense of also having saved end plate, reduced production cost; Meanwhile, also simplify the production process of prestressed-concrete pile, improved production efficiency.
Accompanying drawing explanation
Fig. 1 is stretch-draw components side view.
Fig. 2 is stretch board front view
Fig. 3 is baffle plate front view.
Fig. 4 is cutting ferrule nut amplification view.
Fig. 5 is anchor ring cover enlarged diagram.
Fig. 6 is that stretch-draw assembly is used the schematic top plan view at stretching end.
Fig. 7 is that stretch-draw assembly is used rear-end schematic top plan view.
In figure, have: stretch board 1, short steel column 2, baffle plate 3, cutting ferrule nut 4, tensioning screw rod 5, anchor ring sheet 6, through hole 7, the cutting ferrule end perforate 9 of wearing muscle hole 8, cutting ferrule nut, stretch-draw silk hole 10, stretch-draw screw mandrel 11, presstressed reinforcing steel 12, termination clamp 13, tensioning nut 14.
The specific embodiment
Referring to accompanying drawing, below in conjunction with embodiment and accompanying drawing, the utility model is further described.
Embodiment 1: use at stretching end, produce Endless board prestress concrete square pile.
The stretch-draw assembly of the present embodiment comprises stretch board 1, some tensioning screw rods 5 corresponding with each presstressed reinforcing steel 12 positions, and described stretch board 1 is provided with the stretch-draw through hole 7 mating with tensioning screw rod 5, also comprises support column 2, baffle plate 3, cutting ferrule nut 4 and anchor ring 6.One end vertical welding of four support columns 2 is fixed on stretch board 1, and baffle plate 3 is an independently flat board, and four support columns 2 are supported between stretch board 1 and baffle plate 3, make baffle plate 3 and stretch board 1 keeping parallelism, form the main body of the present embodiment.The shape of stretch board 1 and baffle plate 3 is square, and length and width size is all mated with the mould of concrete-pile, which is provided with corresponding with each presstressed reinforcing steel 12 positions muscle hole 8 of wearing.The quantity of cutting ferrule nut 4 is identical with the quantity of the tensioning screw rod 5 mating with its screw thread, and cutting ferrule nut 4 has the end of thread and the cutting ferrule end of perforation, and the aperture of cutting ferrule end perforate 9 is less than the aperture of the end of thread, referring to Fig. 5.Inside at every a pair of cutting ferrule nut 4 being together by a threaded connection and tensioning screw rod 5, being equipped with a pair of cross section is semiorbicular anchor ring cover 6, referring to Fig. 4, the internal diameter of every anchor ring cover 6 is greater than the muscle portion diameter of presstressed reinforcing steel 12, and is less than the pier nose diameter of presstressed reinforcing steel 12; The external diameter of every anchor ring cover 6 is greater than the aperture of cutting ferrule nut 4 cutting ferrule ends, and is less than the aperture of cutting ferrule nut 4 ends of thread, anchor ring cover 6 can be blocked and be placed in cutting ferrule nut 4.
The installation of stretch-draw assembly: the stretch-draw silk hole 10 on stretch board 1 is connected with stretch-draw screw mandrel 11.When producing Endless board prestress concrete square pile, utilize seam welder that presstressed reinforcing steel 12, non-prestressing tendon and stirrup are welded into after steel reinforcement cage, in one end of steel reinforcement cage, anchor ear plate and end plate are installed.The other end is installed stretch-draw assembly and stretching machine, be called stretching end, when stretch-draw assembly is installed, the wearing behind muscle hole 8 through baffle plate 3 by the presstressed reinforcing steel with heading 12, cutting ferrule nut 4 is enclosed within on presstressed reinforcing steel 12, and make on cutting ferrule nut 4 with the cutting ferrule end in cutting ferrule hole 9 towards baffle plate 3.Then, two anchor ring covers 6 are fastened on presstressed reinforcing steel 12 and are snapped in cutting ferrule nut 4.Mobile stretch-draw assembly, makes stretch-draw through hole 7 position alignment on cutting ferrule nut 4 and stretch board 1, and tensioning screw rod 5 is screwed in cutting ferrule nuts 4 through stretch-draw through hole 7, and presstressed reinforcing steel 12 is connected on stretch board 1.
After the installation of stretch-draw assembly, handling steel reinforcement cage body is put into the square pile mould of dimension size, make to be connected with stretch-draw assembly one end near stretching machine, steel reinforcement cage body with the other end of anchor ear plate and end plate away from stretching machine, referring to Fig. 6, Fig. 6 is that stretch-draw assembly is used the schematic top plan view at stretching end.At position, termination, stretch-draw screw mandrel 11, through termination clamp 13, is connected firmly end tail clamp and end plate in stake tail bit, and two clamps installing are all arranged on the outside of mould ends.The object that termination clamp 13 is set at the position, termination of stake is after presstressed reinforcing steel 12 stretch-draw complete, and by termination clamp 13, blocks mould ends, guarantees that stretch-draw assembly does not bounce back; The object that end tail clamp is set in the end tail bit of stake is in the process of tensioned prestressing bar 12, to guarantee that end plate does not move, thereby guarantees prestressedly in stretching process to apply smoothly, and removes the prestressing force in presstressed reinforcing steel 12 after stretching machine and can not lose.Install after two clamps, stretch-draw screw mandrel 11 is connected firmly with stretching machine, start stretching machine, tensioned prestressing bar 12.When the prestressing force in presstressed reinforcing steel 12 reaches regulation requirement, stop stretch-draw, termination clamp 13 is clamped on to mould ends, removal stretching machine.Afterwards, pass through cloth, vibrate, handling, the operations such as steam press maintenance, complete after the making of Endless board prestress concrete square pile, dismounting mould and stretch-draw assembly.When dismounting stretch-draw assembly, it should be noted that the presstressed reinforcing steel 12 first cutting off between stretch board 1 and baffle plate 3, remove after stretch-draw assembly, then the presstressed reinforcing steel 12 of the outstanding pile body of excision, make stake end keep smooth.
Then, dismantle stretch-draw assembly of the present utility model, in order to reusing.Demounting procedure of the present utility model is: turn on tensioning screw rod 5 and cutting ferrule nut 4, take out anchor ring cover 6 wherein and the broken end of presstressed reinforcing steel 12.
Embodiment 2: use at tail end, produce tailgate prestressed concrete square pile for no reason.
At the stake tail of single-unit stake, and the non-pile extension end of more piece stake, all can produce the prestressed concrete square pile of tailgate for no reason with the utility model, referring to Fig. 7.
The difference of the present embodiment and embodiment 1 is only, when using at the stake tail of single-unit stake or other non-pile extension end, stretching machine does not need to be connected with the utility model, thereby the present embodiment does not need the termination clamp 13 in embodiment 1, so, the stretch board 1 of the present embodiment is larger than baffle plate 3, and stretch board 1 is not to be placed in mould, and it is directly placed on outside mould tail end.
When using the utility model to produce end-plate-free pile for prestressed pipe, only the shape of stretch board 1, baffle plate 3 need be done to respective change, except rotary process, installation, production method and production Endless board prestress concrete square pile are basic identical, and this description repeats no more.

Claims (4)

1. the stretch-draw assembly for the production of end-plate-free prestressed-concrete pile, comprise stretch board (1), some tensioning screw rods (5) corresponding with each presstressed reinforcing steel (12) position, described stretch board (1) is provided with the stretch-draw through hole (7) mating with tensioning screw rod (5), it is characterized in that, it also comprises support column (2), baffle plate (3), cutting ferrule nut (4) and anchor ring (6);
Described baffle plate (3) and stretch board (1) be arranged in parallel, and its shape, size are mated with the mould of concrete-pile, and baffle plate (3) is provided with corresponding with each presstressed reinforcing steel (12) position muscle hole (8) of wearing;
Support column (2) vertical support is between stretch board (1) and baffle plate (3);
The quantity of the quantity of cutting ferrule nut (4) and tensioning screw rod (5) with its coupling is identical, and cutting ferrule nut (4) has the end of thread and the cutting ferrule end of perforation, and the aperture of cutting ferrule end is less than the aperture of the end of thread;
The cutting ferrule nut (4) linking together at each double thread and the inside of tensioning screw rod (5), being equipped with a pair of cross section is semiorbicular anchor ring cover (6); The internal diameter of every anchor ring cover (6) is greater than the muscle portion diameter of presstressed reinforcing steel (12), is less than the pier nose diameter of presstressed reinforcing steel (12); The external diameter of every anchor ring (6) is greater than the aperture of cutting ferrule nut (4) cutting ferrule end, is less than the aperture of cutting ferrule nut (4) end of thread.
2. stretch-draw assembly as claimed in claim 1, is characterized in that described support column (2) arranges four.
3. stretch-draw assembly as claimed in claim 2, is characterized in that described support column (2) has at least one end to be fixed on stretch board (1) or baffle plate (3).
4. stretch-draw assembly as claimed in claim 3, is characterized in that one end of described support column (2) is fixed on stretch board (1) above, and the other end is fixing with baffle plate (3).
CN201420289323.2U 2014-05-30 2014-05-30 Stretch-draw assembly for the production of end-plate-free prestressed-concrete pile Withdrawn - After Issue CN203937017U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
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Application Number Priority Date Filing Date Title
CN201420289323.2U CN203937017U (en) 2014-05-30 2014-05-30 Stretch-draw assembly for the production of end-plate-free prestressed-concrete pile

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104070603A (en) * 2014-05-30 2014-10-01 江苏固丰管桩集团有限公司 Tensioning assembly for producing prestressed concrete pile without end plate
CN106976149A (en) * 2016-01-18 2017-07-25 周兆弟 A kind of end plate of concrete prefabricated pile die
CN106976156A (en) * 2016-01-18 2017-07-25 周兆弟 A kind of tensioning board component of concrete prefabricated pile die

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104070603A (en) * 2014-05-30 2014-10-01 江苏固丰管桩集团有限公司 Tensioning assembly for producing prestressed concrete pile without end plate
CN104070603B (en) * 2014-05-30 2018-06-01 江苏固丰管桩集团有限公司 For producing the tensioning component of end-plate-free prestressed-concrete pile
CN106976149A (en) * 2016-01-18 2017-07-25 周兆弟 A kind of end plate of concrete prefabricated pile die
CN106976156A (en) * 2016-01-18 2017-07-25 周兆弟 A kind of tensioning board component of concrete prefabricated pile die
CN106976156B (en) * 2016-01-18 2022-09-09 周兆弟 Tensioning plate assembly of concrete precast pile mould

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