CN2897601Y - Prestressed tubular pile stretcher - Google Patents
Prestressed tubular pile stretcher Download PDFInfo
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- CN2897601Y CN2897601Y CN 200620101838 CN200620101838U CN2897601Y CN 2897601 Y CN2897601 Y CN 2897601Y CN 200620101838 CN200620101838 CN 200620101838 CN 200620101838 U CN200620101838 U CN 200620101838U CN 2897601 Y CN2897601 Y CN 2897601Y
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Abstract
The utility model discloses a pre-stressed concrete pipe pile main reinforcement tension device, which overcomes the shortcomings of uneven prestress, complex operation and great labor intensity after being anchored as the equipment in prior art can only be tensioned simultaneously as a body or separately in batch. The pre-stressed concrete pipe pile main reinforcement tension device comprises an annular support equipped with a cavity, a rotary supporting disk arranged inside the cavity of the annular support and a hydraulic device; jack fixing holes, of which the number is equal to the number of the main reinforcements of a steel reinforcement cage, are arranged at the margin around the supporting disk, and each fixing hole is equipped with a jack; the inlet oil pipe and outlet oil pipe of each jack are communicated with the hydraulic device. An inlet oil disk and an outlet oil disk are arranged at two end surfaces of the supporting disk, and oil chambers are arranged inside the inlet oil disk and outlet oil disk; pipe joints, of which the number is equal to the number of jacks, are arranged uniformly on the radial circumference surface of the inlet oil disk and outlet oil disk, and the pipe joints are connected with the corresponding jacks by oil pipes; the end surfaces of the inlet oil disk and outlet oil disk are equipped with pipe joints respectively, and the pipe joints are connected with the hydraulic device by the inlet oil pipe and the outlet oil pipe respectively. The utility model has the advantages of simple structure and wide application in the pre-stressed concrete pipe pile tension process.
Description
Technical field
The utility model relates to pile for prestressed pipe master muscle tensioning equipment manufacturing technology field, especially refers to a kind of special-purpose tensioning equipment that all main muscle is waited lotus stretch-draw synchronously, respectively in pile tube punching block end.
Background technology
Record according to related data, China in last century the eighties first from the manufacturing technology of external introduction prestressed concrete pipe pile, because this pile tube product possesses intensity height, good endurance, steady quality and economic dispatch advantage, popularize at home already, be widely used in all kinds of construction projects.But, no matter pile for prestressed pipe adopts pre-tensioning system, still adopting post-tensioned construction, the tension process of its prestressing force master muscle all is to be finished by the whole simultaneously or independent in batches stretch-draw of stretch-draw jack.This type of integral body or the production technology of independent stretch-draw simultaneously in batches, ubiquity have defective and the deficiency that rib prestressed inhomogeneous, the actual prestressing force of the master after the anchoring is big with design prestressing force error, the complex operation work efficiency is low.For this reason, the expectation of prestressed concrete pipe pile production unit is a kind of can to wait the special-purpose tensioning equipment of lotus stretch-draw to come out synchronously, respectively to all main muscle, to overcome above-mentioned defective and the deficiency that prior art exists, improve work efficiency and reduce labor strength, and improve stretch-draw quality conscientiously main muscle material.
The utility model content
The technical problems to be solved in the utility model be overcome tensioning equipment of the prior art can only be simultaneously whole or stretch-draw prestressing force concrete tubular pile master's muscle and main rib prestressed inhomogeneous after the anchoring that exists separately in batches, actual prestressing force is big with design prestressing force error, low and big defective and the deficiency of labour intensity of complex operation work efficiency, provide a kind of synchronous to society, wait the special tensioner of all main muscle of lotus stretch-draw concrete tubular pile respectively, to improve the production work efficiency, reduce labor strength and the stretch-draw quality of stablizing main muscle material, it is required to satisfy the prestressed concrete pipe pile production unit.
The technical scheme that its technical problem that solves the utility model adopts is: pile for prestressed pipe stretch-draw machine comprises the annular ledge that is provided with cavity, is located at rotatable support frame dish and hydraulic means in the annular ledge cavity; Described tray deck circumference is provided with the jack fixing hole identical with quantity with the distributing position of pile tube master muscle, and each fixing hole is provided with a jack; The turnover oil pipe of each jack all is communicated with hydraulic means.
The both ends of the surface of described tray deck are provided with into and out of food tray, describedly establish the grease chamber in food tray, and its circumferential surface radially is evenly equipped with the pipe joint identical with jack quantity, and described pipe joint connects corresponding jack oil inlet and outlet one by one through oil pipe; Describedly respectively establish pipe joint, respectively through connecting hydraulic means into and out of oil pipe into and out of the food tray end face; Described annular ledge is provided with a pair of support roller at the cavity edge near the bottom, and described support roller supports described tray deck circumferential outer surface; Described annular ledge both sides are provided with a pair of removable liftable supporter; Described removable liftable supporter comprises handwheel and the screw mandrel that links to each other with handwheel, and wire rod thread portion is engaged with nut, and described nut is connected with the annular ledge lateral margin via connecting plate; Described screw mandrel bottom supporting is in trundle bracket; Described hydraulic means comprises by motor-driven oil pump, is parallel with safety valve, overflow valve and reversal valve with the oil-out of described oil pump; The oil inlet and outlet of described reversal valve is respectively through connecting described into and out of food tray into and out of oil pipe.
The utility model pile for prestressed pipe stretch-draw machine, each bar master muscle all connects a jack in stretching process, and each jack is connected with same hydraulic means; Jack is synchronously during stretch-draw, equipressure is worked respectively, every stressed unanimity of main muscle, and main muscle material can be one of screw-thread steel, round steel, special-shaped rod iron or steel hinge line.After reaching the stretch-draw desired value, hold lotus, anchoring, off-load, tension process is finished.The utility model is compared than prior art, realize waiting synchronously, respectively lotus stretch-draw to make the suffered prestressing force of every main muscle more even, can effectively avoid main breaking of muscle and tendon to split or the generation of slippage casualty accident, stretching process is safe, and the actual prestressing force after the stretch-draw is more near design load.Tension process is all once finished by the hydraulic means startup in the punching block end, has improved production efficiency greatly.The utility model is simple in structure, easy to maintenance, cheap for manufacturing cost, can be widely used in all kinds of prestressed concrete pipe pile tension process.
Description of drawings
Fig. 1 is the utility model stretch-draw machine structural representation (omission hydraulic means).
Fig. 2 is the cross section structure schematic diagram of Fig. 1.
Fig. 3 is the removable liftable supporter structural representation of the utility model.
Fig. 4 is the C-C cutaway view of Fig. 1.
Fig. 5 is the utility model hydraulic means oil circuit figure.
Fig. 6 is the connection diagram of the utility model integral tension concrete tubular pile master muscle.
The specific embodiment
As depicted in figs. 1 and 2, the utility model pile for prestressed pipe stretch-draw machine comprises the annular ledge 18 that is provided with cavity 23, is located at rotatable support frame dish 19 and hydraulic means 1 in the annular ledge cavity 23; Described annular ledge 18 is provided with a pair of support roller 25 at cavity 23 perisporiums near the bottom, described tray deck 19 circumferential outer surfaces of described support roller 25 supportings.Described tray deck 19 circumference are provided with jack 22 fixing holes 20 identical with quantity with the distributing position of pile tube master muscle 2, and each fixing hole 20 is provided with a jack 22; The turnover oil pipe of each jack 22 all is communicated with hydraulic means 1.Annular ledge 18 both side edges connect a pair of removable liftable supporter 16 by connecting plate 17.The both ends of the surface of described tray deck 19 are connected with turnover food tray 29,35 respectively by bolt 28, establish grease chamber 30 in the described turnover food tray 29,35, and its circumferential surface is radially established a plurality of pipe joints 32, and the quantity of pipe joint 32 is identical with the quantity of jack 22.Each pipe joint 32 of described turnover food tray 29,35 connects corresponding jack 22 oil inlet and outlets one by one through oil pipe 33.The end face of described turnover food tray 29,35 is respectively established pipe joint 31, connects hydraulic means 1 through oil inlet pipe 27,26 respectively.Described annular ledge 18 is provided with several blocks 21 with the end face edge that tray deck 19 joins, and described tray deck 19 is made axial location.
As shown in Figure 3, described removable liftable supporter 16 comprises handwheel 36 and the screw mandrel 37 that links to each other with handwheel 36, and screw mandrel 37 threaded portions are engaged with nut 38, and described nut 38 is connected with annular ledge 18 lateral margins via connecting plate 17; Described screw mandrel 37 lower ends are provided with thrust bearing 41, supported in the fixing screw mandrel bearing 43 of castor 46 supports 44 in, screw mandrel 37 bottom centre are fixed with bearing baffle 45 by bolt 42, come off to prevent thrust bearing 41; The dustproof cover plate 39 that is fixed in screw mandrel bearing 43 by bolt 40 is established in described thrust bearing 41 upper surfaces.
As shown in Figure 4, described support roller 25 is located at the two ends frame on the bearing pin 47 of annular ledge 18 circumferential edges side plates 48.In order to reduce friction, establish bearing 49 between described support roller 25 and the bearing pin 47; The openend card of described bearing pin 47 has catch 50.
As shown in Figure 5, described hydraulic means 1 comprises the oil pump 53 that is driven by motor 34, for guaranteeing the hydraulic means trouble free service, described oil pump 53 oil-outs safety valve 51 in parallel, overflow valve 52 and reversal valve 54, the oil inlet and outlet of described reversal valve 54 is described into and out of food tray 29,35 through connecting into and out of oil pipe 27,26 respectively, the described jack 22 that connects separately through oil pipe 33 into and out of food tray 29,35.
Shown in continuing in conjunction with the accompanying drawings below, narration the utility model tensioning process flow process.As shown in Figure 6, the utility model product is located at punching block 7 one ends, and punching block 7 ends are fixed with gripper shoe 5 by bolt 6, according to the pile tube model and the specification of desire production, select corresponding tray deck 19 to be installed in the described annular ledge 18,21 pairs of tray decks 19 of some blocks are installed are made axial location.The stretchable holes 24 that all main muscle 2 of steel reinforcement cage are offered from gripper shoe 5 corresponding positions is passed through gripper shoe 5, puts moveable anchor 4 successively one by one, connects jack 22 more separately.Steel reinforcement cage master muscle 2 materials can be one of screw-thread steel, round steel, special-shaped rod iron or steel hinge line.Described tray deck 19 is offered jack fixing hole 20 according to the external diameter of distributing position, quantity and the jack 22 of pile tube master muscle, and for example jack 22 is selected the YC50-150 model for use, and external diameter is φ 60mm, and then fixing hole 20 is made φ 62mm.Jack 22 is made axial restraint by shaft block ring after penetrating fixing hole 20.Regulate removable liftable supporter 16, rotate handwheel 36, make tray deck 19 centers and pile tube to be tensioned center contour, rely on this product bottom castor 46 to move, make tray deck 19 centers and pile tube to be tensioned center overlapping.Again by two support rollers, 25 swinging mounting dishes 19, make main muscle 2 to be tensioned aim at jack one by one and pass through jack 22.Primer fluid pressure device 1 work, oil pump 53 to described oil-feed dish 29 fuel feeding, and are injected each jack 22, moveable anchor 3 clampings of jack 22 left ends and stretch-draw master muscle 2 through oil pipe 33 through oil inlet pipe 27.Because the hydraulic oil in the described oil-feed dish 29 lead to whole jack 22 of being located at tray deck 19 synchronously through pipe joint 32, oil pipe 33, so the tensile force that each jack 22 produces is consistent and synchronous, the prestressing force that every main muscle 2 is subjected to is identical, the strain unanimity of generation.After tensile force reaches the stretch-draw desired value, hold lotus, earlier by described moveable anchor 4 anchoring master muscle 2, hydraulic means 1 off-load then, stretch-draw is finished.
The utility model pile for prestressed pipe stretch-draw machine is compared than prior art, and the suffered prestressing force of every main muscle is even, and after testing, actual prestressing force and design load relative deviation after the anchoring are little; Stretching process is safe, and the stretch-draw engineering is finished in that the punching block end is disposable, effectively avoids main breaking of muscle and tendon in the traditional work to split the generation of slippage casualty accident.To whole main muscle synchronous tensions, improved production efficiency.
Claims (5)
1, a kind of pile for prestressed pipe stretch-draw machine, comprise the annular ledge (18) that is provided with cavity (23), be located at rotatable support frame dish (19) and hydraulic means (1) in the annular ledge cavity (23), it is characterized in that: described tray deck (19) circumference is provided with jack (22) fixing hole (20) identical with quantity with the distributing position of pile tube master muscle (2), and each fixing hole (20) is provided with a jack (22); The turnover oil pipe of each jack (22) all is communicated with hydraulic means (1).
2, pile for prestressed pipe stretch-draw machine according to claim 1, it is characterized in that: the both ends of the surface of described tray deck (19) are provided with into and out of food tray (29,35), describedly in food tray (29,35), establish grease chamber (30), its circumferential surface radially is evenly equipped with the pipe joint (32) identical with jack (22) quantity, and described pipe joint (32) connects corresponding jack (22) oil inlet and outlet one by one through oil pipe (33); Describedly respectively establish pipe joint (31), respectively through connecting described hydraulic means (1) into and out of oil pipe (27,26) into and out of food tray (29,35) end face.
3, pile for prestressed pipe stretch-draw machine as claimed in claim 1 or 2 is characterized in that: described annular ledge (18) is provided with a pair of support roller (25) at cavity (23) edge near the bottom, and described support roller (25) supports described tray deck (19) circumferential outer surface.
4, as pile for prestressed pipe stretch-draw machine as described in the claim 3, it is characterized in that: described annular ledge (18) both sides are provided with a pair of removable liftable supporter (16); Described removable liftable supporter (16) comprises handwheel (36) and the screw mandrel (37) that links to each other with handwheel (36), and screw mandrel (37) threaded portion is engaged with nut (38), and described nut (38) is connected with annular ledge (18) lateral margin via connecting plate (17); Described screw mandrel (37) bottom supporting is in trundle bracket (44).
5, as pile for prestressed pipe stretch-draw machine as described in the claim 4, it is characterized in that: described hydraulic means (1) comprises the oil pump (53) that is driven by motor (34), is parallel with safety valve (51), overflow valve (52) and reversal valve (54) with the oil-out of described oil pump (53); The oil inlet and outlet of described reversal valve (54) is respectively through connecting described into and out of food tray (29,35) into and out of oil pipe (27,26).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620101838 CN2897601Y (en) | 2006-03-17 | 2006-03-17 | Prestressed tubular pile stretcher |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620101838 CN2897601Y (en) | 2006-03-17 | 2006-03-17 | Prestressed tubular pile stretcher |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2897601Y true CN2897601Y (en) | 2007-05-09 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200620101838 Expired - Lifetime CN2897601Y (en) | 2006-03-17 | 2006-03-17 | Prestressed tubular pile stretcher |
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| CN (1) | CN2897601Y (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102390083A (en) * | 2011-07-29 | 2012-03-28 | 广东建华管桩有限公司 | Novel part assembly and method for stretching main steel bar in producing prestressed pipe pile |
| CN104589489A (en) * | 2014-12-26 | 2015-05-06 | 湖南恒瑞管桩科技有限公司 | Tubular pile prestress tensioning machine |
| CN105464107A (en) * | 2016-01-13 | 2016-04-06 | 俞晓东 | Fixing device used for manufacturing steel strand reinforcement cages, manufacturing equipment and manufacturing method |
| CN105881734A (en) * | 2014-12-04 | 2016-08-24 | 宿迁力引实业有限公司 | Tensioner for concrete prestressed piles |
| CN111122032A (en) * | 2020-01-07 | 2020-05-08 | 中交天津港湾工程研究院有限公司 | Post-implantation type post-tensioned pre-stress large pipe pile body axial force testing device and testing method |
-
2006
- 2006-03-17 CN CN 200620101838 patent/CN2897601Y/en not_active Expired - Lifetime
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102390083A (en) * | 2011-07-29 | 2012-03-28 | 广东建华管桩有限公司 | Novel part assembly and method for stretching main steel bar in producing prestressed pipe pile |
| CN102390083B (en) * | 2011-07-29 | 2012-11-21 | 广东建华管桩有限公司 | Novel part assembly and method for stretching main steel bar in producing prestressed pipe pile |
| CN105881734A (en) * | 2014-12-04 | 2016-08-24 | 宿迁力引实业有限公司 | Tensioner for concrete prestressed piles |
| CN105881734B (en) * | 2014-12-04 | 2018-03-02 | 江苏力引建材科技股份有限公司 | A kind of concrete pre-stress stake tensioning apparatus |
| CN104589489A (en) * | 2014-12-26 | 2015-05-06 | 湖南恒瑞管桩科技有限公司 | Tubular pile prestress tensioning machine |
| CN105464107A (en) * | 2016-01-13 | 2016-04-06 | 俞晓东 | Fixing device used for manufacturing steel strand reinforcement cages, manufacturing equipment and manufacturing method |
| CN105464107B (en) * | 2016-01-13 | 2017-09-22 | 俞晓东 | Manufacturing equipment and manufacture method for manufacturing steel strand wires steel reinforcement cage |
| CN111122032A (en) * | 2020-01-07 | 2020-05-08 | 中交天津港湾工程研究院有限公司 | Post-implantation type post-tensioned pre-stress large pipe pile body axial force testing device and testing method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20090320 Address after: No. 462, Yanjiang East Road, Zhenhai District, Ningbo City, Zhejiang Province, zip code: 315200 Co-patentee after: China Construction Third Engineering Division Co., Ltd. Patentee after: China Communications Third Navigation Engineering Bureau Co., Ltd. Ningbo branch Address before: Along the road, Zhenhai District of Zhejiang city of Ningbo province No. 462 of the third Harbor Engineering Bureau of Ningbo branch, zip code: 315200 Patentee before: Wang Weiming |
|
| ASS | Succession or assignment of patent right |
Owner name: ZHONGJIAO THIRD NAVIGATIONAL FAIRS ENGINEERING BUR Free format text: FORMER OWNER: WANG WEIMING Effective date: 20090320 |
|
| CX01 | Expiry of patent term |
Granted publication date: 20070509 |
|
| EXPY | Termination of patent right or utility model |