CN203097301U - Prestressed tendon tensioning pre-tensioning device - Google Patents
Prestressed tendon tensioning pre-tensioning device Download PDFInfo
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- CN203097301U CN203097301U CN 201320019204 CN201320019204U CN203097301U CN 203097301 U CN203097301 U CN 203097301U CN 201320019204 CN201320019204 CN 201320019204 CN 201320019204 U CN201320019204 U CN 201320019204U CN 203097301 U CN203097301 U CN 203097301U
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Abstract
A prestressed tendon tensioning pre-tensioning device comprises a tensioning jack which is arranged on supporting legs and is provided with a tensioning rod, a tensioning nut, a tensioning handle, a tensioning screw rod, a locking nut and a nut screwing mechanism, wherein the tensioning nut and the tensioning handle are sleeved on the tensioning rod, and the tensioning screw rod and the locking nut are sleeved at the other end of the tensioning rod. The nut screwing mechanism comprises a hexagonal sleeve, a sleeve gear, intermediate gears with spindles, a rotating gear and a locking handle. The hexagonal sleeve is sleeved on the locking nut, the sleeve gear is sleeved on the outer side of one end of the hexagonal sleeve and is fixedly connected with the hexagonal sleeve, at least one intermediate gear is meshed with the sleeve gear and is evenly or unevenly arranged on the periphery of the sleeve gear, the rotating gear is an inner gear and is meshed with the intermediate gear, the locking handle is fixedly mounted on the outer periphery of the rotating gear through a locking handle mounting and connecting block, the handle can be rotated by 360 degrees, and the entire nut screwing mechanism is mounted on the supporting legs through a supporting base. The nut screwing mechanism of the prestressed tendon tensioning pre-tensioning device is small in size, light in weight and high in working efficiency.
Description
Technical field
The utility model relates to a kind of tensioning construction facility, particularly a kind of tension of prestressed tendon pre-tightening apparatus.
Background technology
At present, in some tensioning constructions, need a kind of stretch-draw jack, can in tensioned prestressing bar, can make the nut screwing clamping of tensioning screw rod end presstressed reinforcing steel keep certain pulling force again; Nut screwing clamping structure on the existing stretch-draw jack has two kinds, a kind of all is to use ratchet structure, be characterized in that structure is little, in light weight, but because handle can only rotate an angle (about general 60 degree), repeatable operation, just can tighten, problem is little when tentioning stroke is not long, but after the tentioning stroke length, just relatively wastes time and energy; Another kind of nut screwing clamping structure is to use chain gear transmission, can operate by manual and electronic dual mode, based on electric operating, but because of its complex structure and heavier, is subjected to the restriction of construction space.
Summary of the invention
The purpose of this utility model is to provide that a kind of nut screwing clamping mechanism that has is simple in structure, volume is little, tension of prestressed tendon pre-tightening apparatus in light weight, easy to operate, that service efficiency is high is to solve the problems referred to above that existing tension of prestressed tendon pre-tightening apparatus exists.
The technical scheme that addresses the above problem is: a kind of tension of prestressed tendon pre-tightening apparatus, comprise the stretch-draw jack that is installed in band tension rod on the spike, be enclosed within the tensioning nut on the tension rod, the stretch-draw handle, be enclosed within the tensioning screw rod and the locking nut thereof of the tension rod other end, it is characterized in that: this tension of prestressed tendon pre-tightening apparatus also comprises a nut screwing clamping mechanism, described nut screwing clamping mechanism comprises Hexagonal jacket, sleeve gear, the idler gear of band rotating shaft, swing pinion and set lever, Hexagonal jacket is enclosed within on the locking nut, sleeve gear is enclosed within the Hexagonal jacket one end outside and fixedlys connected with Hexagonal jacket, n idler gear and sleeve gear engagement, be distributed on the circumference of sleeve gear equably or anisotropically, swing pinion be internal gear and with the engagement of n idler gear, set lever is installed contiguous block by set lever and is fixedly mounted on the swing pinion excircle, whole nut screwing clamping mechanism is installed on the spike by supporting seat, and n is the arbitrary integer between the 1-10.
Its further technical scheme is: described tension of prestressed tendon pre-tightening apparatus, the idler gear that meshes with sleeve gear has 1-3.
Described tension of prestressed tendon pre-tightening apparatus, the number of teeth of swing pinion greater than idler gear and with the sleeve gear of idler gear engagement.
Described set lever 6 can 360 ° of rotations.
Because adopt technique scheme, the beneficial effect of the utility model tension of prestressed tendon pre-tightening apparatus is:
The nut screwing clamping mechanism that utility model tension of prestressed tendon pre-tightening apparatus has only more greatly than the profile of ratchet mechanism, Weight control is identical with ratchet mechanism substantially well; But the utility model adopts inside and outside gear meshing mode to transmit screwing force, 360 ° of rotations of handle energy, according to gear-driven characteristics, the outer ring number of teeth is many, and the inner ring number of teeth is few, and handle revolves and turns around, more than the rotatable circle of nut, thereby nut screwing clamping of the present utility model mechanism efficient is high more a lot of than ratchet mechanism, and easy to use, greatly reduces operator's working strength; In the jack tension presstressed reinforcing steel, just can turn nut, after putting in place, stretch-draw can tighten fast.
Be described further below in conjunction with the technical characterictic of drawings and Examples the utility model tension of prestressed tendon pre-tightening apparatus.
Description of drawings
Fig. 1: the overall structure of the utility model tension of prestressed tendon pre-tightening apparatus and user mode schematic diagram;
Fig. 2: the utility model tension of prestressed tendon pre-tightening apparatus adopts the structural representation of an idler gear transmission;
Fig. 3: the utility model tension of prestressed tendon pre-tightening apparatus adopts the structural representation of 3 idler gear transmissions.
The specific embodiment
A kind of tension of prestressed tendon pre-tightening apparatus, as shown in Figure 1, this tension of prestressed tendon pre-tightening apparatus comprises and is installed on the spike 3, the stretch-draw jack 8 of band tension rod 2, is enclosed within tensioning nut 9, stretch-draw handle 10 on the tension rod 2, be enclosed within the tensioning screw rod 14 and the locking nut 15 thereof of the tension rod other end, this tension of prestressed tendon pre-tightening apparatus also comprises a nut screwing clamping mechanism;
Described nut screwing clamping mechanism comprises idler gear 5, swing pinion 12 and the set lever 6 of Hexagonal jacket 1, sleeve gear 7, band rotating shaft 4, Hexagonal jacket 1 is enclosed within on the locking nut 15, sleeve gear 7 is enclosed within the Hexagonal jacket 1 one ends outside and fixedlys connected with Hexagonal jacket 1, n idler gear 5 meshes with sleeve gear 7, swing pinion 12 and 5 engagements of n idler gear, set lever 6 is installed contiguous block 61 by set lever and is fixedly mounted on the swing pinion 12, whole nut screwing clamping mechanism is installed on the spike 3 by supporting seat 11, and n is the arbitrary integer between the 1-10.
The idler gears 5 of described and sleeve gear 7 engagements have 1 (referring to Fig. 2) at least, also can be more, as 3 (referring to Fig. 3), 4 ... 10, as required, can also be more.
The installation and application of the utility model tension of prestressed tendon pre-tightening apparatus, it may further comprise the steps:
A. assembling nut is tightened mechanism:
1) sleeve gear 7 is installed on the Hexagonal jacket 1, then it is put into spike 3;
2) rotating shaft 4 is packed into idler gear 5, the supporting base 11 of packing into then puts swing pinion 12, is connected with the spike assembly that the front has installed, and tightens screw 13;
B. nut screwing clamping mechanism is passed tension rod 2 and installed to stretch-draw jack 8 afterbodys, load onto set lever 6 at last and get final product;
Earlier Hexagonal jacket is overlapped 1 to the nut 15 of screw rod 14 when C. using, rotation stretch-draw handle 10 makes screw rod 14 screw in tension rod 2 end screw threads, the position of adjusting tensioning nut 9, stretch-draw jack 8 carries out stretch-draw, after setting value is arrived in stretch-draw, rotational lock handle 6, at this moment swing pinion 12 drives idler gears 5 rotations, idler gear 5 drives sleeve gear 7 again and rotates, sleeve gear 7 passes to Hexagonal jacket 1 with rotation, and Hexagonal jacket 1 drives nut 15 rotations, until fastening nut 15 on screw rod 14.
Claims (4)
1. tension of prestressed tendon pre-tightening apparatus, comprise and be installed in the stretch-draw jack (8) that spike (3) is gone up band tension rod (2), be enclosed within the tensioning nut (9) on the tension rod (2), stretch-draw handle (10), be enclosed within the tensioning screw rod (14) and the locking nut (15) thereof of the tension rod other end, it is characterized in that: this tension of prestressed tendon pre-tightening apparatus also comprises a nut screwing clamping mechanism, described nut screwing clamping mechanism comprises Hexagonal jacket (1), sleeve gear (7), the idler gear (5) of band rotating shaft (4), swing pinion (12) and set lever (6), Hexagonal jacket (1) is enclosed within on the locking nut (15), sleeve gear (7) is enclosed within Hexagonal jacket (1) the one end outside and fixedlys connected with Hexagonal jacket (1), n idler gear (5) and sleeve gear (7) engagement, be distributed on the circumference of sleeve gear (7) equably or anisotropically, swing pinion (12) is internal gear and meshes with n idler gear (5), set lever (6) is installed contiguous block (61) by set lever and is fixedly mounted on swing pinion (12) excircle, whole nut screwing clamping mechanism is installed on the spike (3) by supporting seat (11), and n is the arbitrary integer between the 1-10.
2. tension of prestressed tendon pre-tightening apparatus according to claim 1 is characterized in that: have 1-3 with the idler gear (5) of sleeve gear (7) engagement.
3. tension of prestressed tendon pre-tightening apparatus according to claim 1 is characterized in that: the number of teeth of swing pinion (12) greater than idler gear (5) and with the sleeve gear (7) of idler gear (5) engagement.
4. according to claim 1,2 or 3 described tension of prestressed tendon pre-tightening apparatus, it is characterized in that: described set lever (6) can 360 ° of rotations.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320019204 CN203097301U (en) | 2013-01-15 | 2013-01-15 | Prestressed tendon tensioning pre-tensioning device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320019204 CN203097301U (en) | 2013-01-15 | 2013-01-15 | Prestressed tendon tensioning pre-tensioning device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203097301U true CN203097301U (en) | 2013-07-31 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320019204 Expired - Fee Related CN203097301U (en) | 2013-01-15 | 2013-01-15 | Prestressed tendon tensioning pre-tensioning device |
Country Status (1)
| Country | Link |
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| CN (1) | CN203097301U (en) |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103387191A (en) * | 2013-08-16 | 2013-11-13 | 广西国森机械有限公司 | Portable pre-stressed tensioning jack |
| CN104264544A (en) * | 2014-10-13 | 2015-01-07 | 河北益铁机电科技有限公司 | Pre-tensioning jack for pre-tensioned track board and method for tensioning pre-stressed twisted steel of track board by use of pre-tensioning jack |
| CN106758848A (en) * | 2017-01-19 | 2017-05-31 | 浙江兴土桥梁专用装备制造有限公司 | For the vertical prestressing bar intelligent tensioning equipment and application method of bridge construction |
| CN107869111A (en) * | 2016-09-23 | 2018-04-03 | 浙江兴土桥梁专用装备制造有限公司 | Prestressed Concrete Bridges vertical prestressing bar intelligent tensioning equipment and application method |
| CN108656339A (en) * | 2018-06-11 | 2018-10-16 | 湖北工业大学 | A kind of pipe pile mould automatic Tensioning device |
| CN108943380A (en) * | 2018-09-28 | 2018-12-07 | 山东豪迈机械制造有限公司 | A kind of locking device and deformed bar tensioning equipment |
| CN109093839A (en) * | 2018-08-10 | 2018-12-28 | 中国华西企业股份有限公司 | A kind of presstressed reinforcing steel stretching structure for pre-stress floor |
| CN110039650A (en) * | 2019-04-15 | 2019-07-23 | 湖北工业大学 | A kind of nut locking device for tubular piles stretching |
| CN110039651A (en) * | 2019-04-15 | 2019-07-23 | 湖北工业大学 | A kind of pile for prestressed pipe mould automatic Tensioning system based on hydraulic cylinder |
| CN110877322A (en) * | 2019-11-04 | 2020-03-13 | 北京城建设计发展集团股份有限公司 | Automatic screwing device for prestressed reinforced nut matched with hollow jack |
-
2013
- 2013-01-15 CN CN 201320019204 patent/CN203097301U/en not_active Expired - Fee Related
Cited By (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103387191A (en) * | 2013-08-16 | 2013-11-13 | 广西国森机械有限公司 | Portable pre-stressed tensioning jack |
| CN104264544A (en) * | 2014-10-13 | 2015-01-07 | 河北益铁机电科技有限公司 | Pre-tensioning jack for pre-tensioned track board and method for tensioning pre-stressed twisted steel of track board by use of pre-tensioning jack |
| CN107869111B (en) * | 2016-09-23 | 2023-07-21 | 浙江兴土桥梁专用装备制造有限公司 | Intelligent tensioning equipment for vertical prestressed tendons of prestressed concrete bridge and using method |
| CN107869111A (en) * | 2016-09-23 | 2018-04-03 | 浙江兴土桥梁专用装备制造有限公司 | Prestressed Concrete Bridges vertical prestressing bar intelligent tensioning equipment and application method |
| CN106758848A (en) * | 2017-01-19 | 2017-05-31 | 浙江兴土桥梁专用装备制造有限公司 | For the vertical prestressing bar intelligent tensioning equipment and application method of bridge construction |
| CN106758848B (en) * | 2017-01-19 | 2024-03-12 | 浙江兴土桥梁专用装备制造有限公司 | Intelligent vertical prestressed reinforcement tensioning equipment for bridge construction and use method |
| CN108656339A (en) * | 2018-06-11 | 2018-10-16 | 湖北工业大学 | A kind of pipe pile mould automatic Tensioning device |
| CN109093839A (en) * | 2018-08-10 | 2018-12-28 | 中国华西企业股份有限公司 | A kind of presstressed reinforcing steel stretching structure for pre-stress floor |
| CN109093839B (en) * | 2018-08-10 | 2024-02-27 | 中国华西企业股份有限公司 | Prestressed rib stretching structure for prestressed floor slab |
| CN108943380A (en) * | 2018-09-28 | 2018-12-07 | 山东豪迈机械制造有限公司 | A kind of locking device and deformed bar tensioning equipment |
| CN108943380B (en) * | 2018-09-28 | 2024-03-26 | 山东豪迈机械制造有限公司 | Locking device and prestressed reinforcement tensioning device |
| CN110039651A (en) * | 2019-04-15 | 2019-07-23 | 湖北工业大学 | A kind of pile for prestressed pipe mould automatic Tensioning system based on hydraulic cylinder |
| CN110039650B (en) * | 2019-04-15 | 2020-07-24 | 湖北工业大学 | Nut locking device for tubular pile tensioning |
| CN110039651B (en) * | 2019-04-15 | 2020-07-24 | 湖北工业大学 | Automatic tensioning system of prestressing force tubular pile mould based on hydraulic cylinder |
| CN110039650A (en) * | 2019-04-15 | 2019-07-23 | 湖北工业大学 | A kind of nut locking device for tubular piles stretching |
| CN110877322B (en) * | 2019-11-04 | 2020-11-24 | 北京城建设计发展集团股份有限公司 | Automatic screwing device for prestressed reinforced nut matched with hollow jack |
| CN110877322A (en) * | 2019-11-04 | 2020-03-13 | 北京城建设计发展集团股份有限公司 | Automatic screwing device for prestressed reinforced nut matched with hollow jack |
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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: 20130731 Termination date: 20200115 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |