CN104163387B - Prestressed stretch-draw jack - Google Patents
Prestressed stretch-draw jack Download PDFInfo
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- CN104163387B CN104163387B CN201310180866.0A CN201310180866A CN104163387B CN 104163387 B CN104163387 B CN 104163387B CN 201310180866 A CN201310180866 A CN 201310180866A CN 104163387 B CN104163387 B CN 104163387B
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- anchor
- ring
- top pressure
- fluid port
- hydraulic fluid
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Abstract
A kind of prestressed stretch-draw jack, including：Top anchor tube, top pressure body, top pressure spring, top carve ring, anchor cup, moveable anchor, return spring holder, back-moving spring, inner casing, middle cylinder, outer shell, angle coupling, oil return pipe, cutting ferrule, positive angle plinth, closure, lock ring, union (screwed)bonnet (UB, return cylinder hydraulic fluid port, go out cylinder hydraulic fluid port, wherein top pressure spring crouches carves in ring on top, withstands top anchor tube afterbody；Carve ring and be connected by screw thread with top pressure body in top；Top pressure body is connected through a screw thread with middle cylinder；Return spring holder puts back-moving spring and withstands moveable anchor afterbody；Moveable anchor carves conjunction with anchor cup by 8 ° of inclined-planes；Anchor cup is connected through a screw thread inner casing；Closure clasps outer shell；Lock ring pins inner casing groove；Union (screwed)bonnet (UB is connected through a screw thread outer shell and holds out against lock ring, and the porch of oil return pipe sets back cylinder hydraulic fluid port, and cylinder hydraulic fluid port is provided with out above positive angle plinth.
Description
Technical field
The present invention relates to a kind of special equipment of tension steel strand, more particularly to a kind of prestressed stretch-draw jack.
Background technology
Prestressed stretch-draw jack is the special equipment of tension steel strand.By the moveable anchor of its internal configuration, can be achieved
It is automatic to anchor and move back anchor automatically.The SDB Series Manual oil pumps that product can generally use with our company and market, KZDB, STDB system
Row extra-high pressure electric oil pump, the pneumatic oil pump of FDB series support the use, and are a kind of versatility, compatible all good prestressed stretch-draw
Special equipment.It can be widely applied to the prestressd anchor cable tensioning such as railway, highway, bridge, building, colliery, tunnel, Mine anchorage cable branch
Protector for collar domain.
The type prestressed stretch-draw jack for the tension steel strand that existing market uses, can be substantially met in construction operation makes
With the requirement of side.But likewise, the prestressed stretch-draw jack that market uses, weight is all between 30~40Kg.Make in construction
During industry, often want flush end due to need of work, during direct labor and face upward act equipment, 30~40Kg weight is to production line
Worker cause very big inconvenience and burden, they carry great labor intensity.
In order to solve the above-mentioned technical problem, inventor reduces the labor intensity of coal miner by every means, redesigns
A kind of prestressed stretch-draw jack, there is good mechanical performance, workability is good, easy to process, and wearability is good, corrosion resistance
The advantages that energy, good in oxidation resistance.
Our product quality is alleviated more than 50% by improving, and the cost of transportation of product can be reduced.True
The labor intensity for ensuring safety and worker being greatly reduced on the basis of product quality, improves production efficiency.Use 7075 t6 aluminium
Alloy substituted for the most heavy parts such as outer shell and middle cylinder and the top pressing device of YCD prestressed stretch-draw jack.7075 t6 aluminium alloys
Have the following advantages that：(1) high intensity heat-treatable alloy.(2) good mechanical properties.(3) workability is good, and wearability is good.(4)
Corrosion resistance, good in oxidation resistance.Rigid material can be replaced completely using this material.
The content of the invention
The prestressed stretch-draw jack of the present invention includes：Ring, anchor cup, work are carved in top anchor tube, top pressure body, top pressure spring, top
Have anchor, return spring holder, back-moving spring, inner casing, middle cylinder, outer shell, angle coupling, oil return pipe, cutting ferrule, positive angle plinth, sealing
Lid, lock ring, union (screwed)bonnet (UB, return cylinder hydraulic fluid port, go out cylinder hydraulic fluid port, wherein top pressure spring crouches carves in ring on top, withstand top anchor tube afterbody；Top
Ring is carved to be connected with top pressure body by screw thread；Top pressure body is connected through a screw thread with middle cylinder；Return spring holder covers upper reset spring
Withstand moveable anchor afterbody；Moveable anchor carves conjunction with anchor cup by 8 ° of inclined-planes；Anchor cup is connected through a screw thread inner casing；Closure clasps outer
Cylinder；Lock ring pins inner casing groove；Union (screwed)bonnet (UB is connected through a screw thread outer shell and holds out against lock ring, and the porch of oil return pipe sets back cylinder
Hydraulic fluid port, positive angle plinth top are provided with out cylinder hydraulic fluid port.
When carrying out tensioning：Hydraulic oil is entered by going out cylinder hydraulic fluid port, promotes middle cylinder reach, after ring is carved on top leaves moveable anchor,
Moveable anchor moves forward in the presence of back-moving spring and holds steel strand wires tightly.With the entrance of hydraulic oil, middle cylinder constantly moves forward, when
Start tension steel strand when top pressure body front end top is to Anchor Cable Anchorage on steel strand wires.Stop supplying when tensioning is to predetermined load
Oil, load is constant, now pushes up anchor tube in the presence of top pressure spring by the intermediate plate jacking anchor ring in Anchor Cable Anchorage, realizes anchor cable
The anchoring of anchorage and steel strand wires.
When exiting tensioning：Hydraulic oil is entered by returning cylinder hydraulic fluid port, is moved after middle cylinder, after ring top is carved to moveable anchor in top, instrument
Moved after anchor anchors and the outer steel strand wires opened, unclamp holding, the automatic of implementation tool anchor move back anchor.
Preferably, outer shell (11) and the manufacture material of middle cylinder (10) and top pressure body (2) are used as using 7075 t6 aluminium alloys
Material.
Brief description of the drawings
Fig. 1 is the prestressed stretch-draw jack profile of the present invention.
1- pushes up anchor tube；2- top pressure bodies；3- top pressure springs；4- carves ring in top；5- anchor cups；6- moveable anchors；7- return spring holders；
8- back-moving springs；9- inner casings；10- middle cylinders；11- outer shells；12- angle couplings；13- oil return pipes；14- cutting ferrules；The positive angle joints of 15-
Seat；16- closures；17- lock rings；18- union (screwed)bonnet (UBs；19- returns cylinder hydraulic fluid port；20- goes out cylinder hydraulic fluid port.
Embodiment
As shown in figure 1, the prestressed stretch-draw jack of the present invention includes：Push up anchor tube 1, top pressure body 2, top pressure spring 3, top
Carve ring 4, anchor cup 5, moveable anchor 6, return spring holder 7, back-moving spring 8, inner casing 9, middle cylinder 10, outer shell 11, angle coupling 12, oil return
Pipe 13, cutting ferrule 14, positive angle plinth 15, closure 16, lock ring 17, union (screwed)bonnet (UB 18, return cylinder hydraulic fluid port 19, go out cylinder hydraulic fluid port 20, its
Middle top pressure spring 3, which crouches, to be carved on top in ring 4, withstands the afterbody of anchor tube 1；Carve ring 4 and be connected by screw thread with top pressure body 2 in top；Top pressure
Body 2 is connected through a screw thread with middle cylinder 10；7 sets of upper reset springs 8 of return spring holder withstand the afterbody of moveable anchor 6；Moveable anchor 6 and anchor
Cup 5 carves conjunction by 8 ° of inclined-planes；Anchor cup 5 is connected through a screw thread inner casing 9；Closure 16 clasps outer shell 11；It is recessed that lock ring 17 pins inner casing 9
Groove；Union (screwed)bonnet (UB 18 is connected through a screw thread outer shell and holds out against lock ring 17, and the porch of oil return pipe 13 sets back cylinder hydraulic fluid port, positive corner connection
The top of headstock 15 is provided with out cylinder hydraulic fluid port.
When carrying out tensioning：Hydraulic oil is entered by going out cylinder hydraulic fluid port 20, is promoted middle cylinder 10 to move forward, is carved ring 4 when top and leave instrument
After anchor 6, moveable anchor 6 moves forward in the presence of back-moving spring 8 and holds steel strand wires tightly.With the entrance of hydraulic oil, middle cylinder 10
Constantly reach, start tension steel strand when the front end of top pressure body 2 top is to Anchor Cable Anchorage on steel strand wires.When tensioning carries to predetermined
Fuel cut-off during lotus, load is constant, now pushes up anchor tube 1 in the presence of top pressure spring by the intermediate plate jacking anchor ring in Anchor Cable Anchorage
In, realize the anchoring of Anchor Cable Anchorage and steel strand wires.
When exiting tensioning：Hydraulic oil is entered by returning cylinder hydraulic fluid port 19, is moved after middle cylinder 10, is carved the top of ring 4 when top and is arrived moveable anchor 6
Afterwards, moved after moveable anchor anchors and the outer steel strand wires opened, unclamp holding, the automatic of implementation tool anchor move back anchor.
Outer shell (11) and middle cylinder (10) and the manufacture material of top pressure body (2) are used as using 7075 t6 aluminium alloys.
The foregoing is only a specific embodiment of the invention, but protection scope of the present invention is not limited thereto, any
Those familiar with the art the invention discloses technical scope in, change or replacement can be readily occurred in, should all be contained
Cover within protection scope of the present invention.Therefore, protection scope of the present invention should be based on the protection scope of the described claims.
Claims (2)
1. a kind of prestressed stretch-draw jack, including：Anchor tube (1) is pushed up, top pressure body (2), top pressure spring (3), pushes up and carves ring (4),
Anchor cup (5), moveable anchor (6), return spring holder (7), back-moving spring (8), inner casing (9), middle cylinder (10), outer shell (11), heading joint
Head (12), oil return pipe (13), cutting ferrule (14), positive angle plinth (15), closure (16), lock ring (17), union (screwed)bonnet (UB (18), return
Cylinder hydraulic fluid port (19), go out cylinder hydraulic fluid port (20)；Top pressure spring (3), which crouches, to be carved on top in ring (4), withstands anchor tube (1) afterbody；Carve ring in top
(4) it is connected by screw thread with top pressure body (2)；Top pressure body (2) is connected through a screw thread with middle cylinder (10)；Return spring holder (7)
Set upper reset spring (8) withstands moveable anchor (6) afterbody；Moveable anchor (6) carves conjunction with anchor cup (5) by 8 ° of inclined-planes；Anchor cup (5) passes through
It is threadedly coupled inner casing (9)；Closure (16) clasps outer shell (11)；Lock ring (17) pins inner casing (9) groove；Union (screwed)bonnet (UB (18) is logical
Cross threaded connection outer shell and hold out against lock ring (17)；The porch of oil return pipe (13) sets back cylinder hydraulic fluid port, on positive angle plinth (15)
Side is provided with out cylinder hydraulic fluid port；
When carrying out tensioning：Hydraulic oil is entered by going out cylinder hydraulic fluid port (20), is promoted middle cylinder (10) reach, is carved ring (4) when top and leave work
After having anchor (6), moveable anchor (6) moves forward in the presence of back-moving spring (8) and holds steel strand wires tightly, with entering for hydraulic oil
Entering, middle cylinder (10) constantly moves forward, and starts tension steel strand when top pressure body (2) front end top is to Anchor Cable Anchorage on steel strand wires,
The fuel cut-off when tensioning is to predetermined load, load is constant, now pushes up anchor tube (1) in the presence of top pressure spring by Anchor Cable Anchorage
In intermediate plate jacking anchor ring in, realize the anchoring of Anchor Cable Anchorage and steel strand wires；
When exiting tensioning：Hydraulic oil is entered by returning cylinder hydraulic fluid port (19), and middle cylinder (10) is moved afterwards, is carved ring (4) top when top and is arrived moveable anchor
(6) moved after, after moveable anchor anchors and the outer steel strand wires opened, unclamp holding, the automatic of implementation tool anchor move back anchor.
2. prestressed stretch-draw jack as claimed in claim 1, it is characterised in that be used as outer shell using 7075 t6 aluminium alloys
And middle cylinder (10) and the manufacture material of top pressure body (2) (11).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310180866.0A CN104163387B (en) | 2013-05-16 | 2013-05-16 | Prestressed stretch-draw jack |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310180866.0A CN104163387B (en) | 2013-05-16 | 2013-05-16 | Prestressed stretch-draw jack |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104163387A CN104163387A (en) | 2014-11-26 |
| CN104163387B true CN104163387B (en) | 2018-02-13 |
Family
ID=51907401
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310180866.0A Active CN104163387B (en) | 2013-05-16 | 2013-05-16 | Prestressed stretch-draw jack |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104163387B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104860226A (en) * | 2015-04-27 | 2015-08-26 | 同济大学 | Prestress tensioning jack equipment with adjustable limiting device |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0913672A (en) * | 1995-07-04 | 1997-01-14 | P S Co Ltd | Frp tensional material, its fixing method and fixing tool |
| CN2235436Y (en) * | 1995-12-18 | 1996-09-18 | 吕文炎 | Multi-function hydraulic jack for pushing or drawing |
| JP3983374B2 (en) * | 1998-03-13 | 2007-09-26 | 株式会社三和技研 | Anchor re-tension method and re-tension jig |
| CN2455694Y (en) * | 2000-12-30 | 2001-10-24 | 焦金太 | Pre-stressed anti-rotary jack |
| CN2547714Y (en) * | 2002-05-28 | 2003-04-30 | 奉化市南方机械制造有限公司 | Dual-pump oil jack |
| CN203392785U (en) * | 2013-05-16 | 2014-01-15 | 吕洪伟 | Pre-stressed tensioning jack |
-
2013
- 2013-05-16 CN CN201310180866.0A patent/CN104163387B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN104163387A (en) | 2014-11-26 |
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| Date | Code | Title | Description |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20190730 Address after: 100072 Beijing Tongzhou District Zhongguancun Science and Technology Park Tongzhou Park Jinqiao Science and Technology Industrial Base Jingsheng South Fourth Street Jia No. 13 Building C Patentee after: Beijing Hydraulic Machinery Co. Ltd. the Hanhai Scarlett Address before: 100072 No. 302, 3rd Gate, 31st Floor, Huaishuling No. 3 Hospital, Fengtai District, Beijing Patentee before: Lv Hongwei |
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| TR01 | Transfer of patent right |