CN2387149Y - Fast stretching appts. for roofbolt - Google Patents
Fast stretching appts. for roofbolt Download PDFInfo
- Publication number
- CN2387149Y CN2387149Y CN 99232378 CN99232378U CN2387149Y CN 2387149 Y CN2387149 Y CN 2387149Y CN 99232378 CN99232378 CN 99232378 CN 99232378 U CN99232378 U CN 99232378U CN 2387149 Y CN2387149 Y CN 2387149Y
- Authority
- CN
- China
- Prior art keywords
- anchor
- bearing
- anchor pole
- tensioner
- ring
- 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.)
- Expired - Fee Related
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Abstract
The utility model relates to a special device for rapidly exerting prestressing on an anchor rod. The utility model is provided with a hollow fixed supporting seat of which the top is provided with a hydraulic ram with a pressure meter. The piston end of the hydraulic ram is provided with a movable supporting seat which is provided with two draw rods which are arranged in parallel and pass through the top surface of the fixed supporting seat. The lower end of each of the draw rods is fixedly connected with an anchor ring which tightly hoops the anchor rod, and the inner ring surface of the anchor ring is provided with a plurality of slip-type anchor sheets.
Description
The utility model relates to a kind of in side slope, the city basement foundation ditch, and Engineering anchor rods such as tunnel apply prestressed device to anchor pole during the plate brad supporting operation specially fast.
Prestressing force at anchor pole applies in the operation, at present more common method is that screw rod applies method, and the shortcoming of this method is to need very big tightening device when applying power, structure with all more complicated are installed, also need to join in addition specially to measure prestressed instrument, efficiency of construction is low.
The purpose of this utility model is the above-mentioned shortcoming that overcomes prior art, provides a kind of simple in structure, and easy construction is the quick tensioner of anchor pole efficiently.
The quick tensioner of anchor pole of realization the utility model purpose has a hollow type and decides bearing, be equipped with one at the top that this hollow type is decided bearing and have a manometric hydraulic jack, piston end at hydraulic jack is provided with a moving bearing, described moving bearing have two be arranged in parallel pass the pull bar of deciding the bearing end face, the upper end of pull bar and a top board are affixed, and the lower end is connected with the anchor ring of a banding anchor pole.Inner ring surface at anchor ring is provided with several piece slip-type anchor sheet.
The operating principle of the quick tensioner of this anchor pole is as follows:
Earlier trivial of anchor pole is inserted in the exposed junction of anchor pole and is close to the crag ancient piece of jade, round, flat and with a hole in its centre face of desiring supporting, the bottom of deciding bearing of this tensioner is flat on trivial of the anchor pole, and making the exposed junction of anchor pole pack into anchor ring, the slip-type anchor sheet of packing into is finished being connected between this tensioner and anchor pole.Give the oil cylinder reinforcing by handle, the overhanging bearing that will move of oil cylinder piston drives anchor ring to away from the motion of supporting wall direction by pull bar, and anchor ring drives anchor pole and makes anchor pole generation stretcher strain, promptly realizes anchor pole is applied prestressed purpose.The prestressed big I that is applied is intuitively grasped at any time by the pressure meter on the oil cylinder.
The utility model adopts and to have manometric oil cylinder and substitute the screw rod pressure exerting arrangement and come anchor pole is applied prestressing force, and it is light and handy to have structure, simple to operate, and the efficiency of construction height can intuitively be grasped the advantage of the size etc. of the power that applies simultaneously.Be applicable to steel pipe, reinforced anchor bolt (rope), soil nailings etc. use when applying prestressing force fast.
Provide exemplifying embodiment of the present utility model below in conjunction with accompanying drawing.
Fig. 1 structural representation of the present utility model
Fig. 2 decides the seat structure schematic diagram.
Structural representation between Fig. 3 slip-type anchor sheet and anchor ring.
Visit Fig. 1～3, hollow type decide bearing and is the quadrangle oil cylinder installing plate 3 that is erected at the pillar 2,10,11,12 on the footing and is arranged on four root posts that distributes by 1,13, four on two foundation pin and is constituted.Can adopt the bolt type column.The hydraulic jack that has an oil pressure gauge 4 be installed on the oil cylinder installing plate 3.Moving bearing 6 is arranged on the oil cylinder piston end.An available screw 15 will move bearing 6 and be connected on the oil cylinder piston.Two pull bars that be arranged in parallel 16,17.One end and moving bearing 6 are affixed, and the other end passes oil cylinder installing plate 3 affixed anchor rings 9.Slip-type anchor sheet 8 is arranged in the inner ring surface of anchor ring (referring to Fig. 3).7 is anchor pole (shown in the double dot dash line) among the figure.
The quick tensioner of this anchor pole is according to different needs, and the big I of the oil cylinder application of force forms seriation, and the anchor sheet also can form seriation according to the bolt diameter size.
Claims (2)
1. the quick tensioner of anchor pole, it is characterized in that described tensioner has a hollow type and decides bearing, be equipped with one at the top that this hollow type is decided bearing and have a manometric hydraulic jack, piston end at hydraulic jack is provided with a moving bearing, described moving bearing have two be arranged in parallel pass the pull bar of deciding the bearing end face, be connected with the anchor ring of a banding anchor pole in the lower end of pull bar, be provided with several piece slip-type anchor sheet at the inner ring surface of anchor ring.
2. the quick tensioner of anchor pole as claimed in claim 1, it is characterized in that described hollow type decide bearing by two foundation pin and four be quadrangle distribute be erected at footing pillar and be arranged on four pillars and constituted at the oil cylinder installing plate of end.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 99232378 CN2387149Y (en) | 1999-08-18 | 1999-08-18 | Fast stretching appts. for roofbolt |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 99232378 CN2387149Y (en) | 1999-08-18 | 1999-08-18 | Fast stretching appts. for roofbolt |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2387149Y true CN2387149Y (en) | 2000-07-12 |
Family
ID=34021070
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 99232378 Expired - Fee Related CN2387149Y (en) | 1999-08-18 | 1999-08-18 | Fast stretching appts. for roofbolt |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2387149Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100595419C (en) * | 2007-09-28 | 2010-03-24 | 中国矿业大学 | Large-stroke stretching device for static-indeterminant supporting anchorage cable |
| CN103243714A (en) * | 2013-05-28 | 2013-08-14 | 唐山德泰机械制造有限公司 | High-strength pre-stressed anchor rod |
| CN106284344A (en) * | 2016-10-18 | 2017-01-04 | 中国船舶重工集团公司第七�三研究所 | A kind of hydraulic single-cylinder tensioner |
-
1999
- 1999-08-18 CN CN 99232378 patent/CN2387149Y/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100595419C (en) * | 2007-09-28 | 2010-03-24 | 中国矿业大学 | Large-stroke stretching device for static-indeterminant supporting anchorage cable |
| CN103243714A (en) * | 2013-05-28 | 2013-08-14 | 唐山德泰机械制造有限公司 | High-strength pre-stressed anchor rod |
| CN103243714B (en) * | 2013-05-28 | 2015-06-10 | 唐山德泰机械制造有限公司 | High-strength pre-stressed anchor rod |
| CN106284344A (en) * | 2016-10-18 | 2017-01-04 | 中国船舶重工集团公司第七�三研究所 | A kind of hydraulic single-cylinder tensioner |
| CN106284344B (en) * | 2016-10-18 | 2018-06-22 | 中国船舶重工集团公司第七一三研究所 | A kind of hydraulic single-cylinder tensioner |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C57 | Notification of unclear or unknown address | ||
| DD01 | Delivery of document by public notice |
Addressee: Chengdu Sihai Geotechnical Engineering Co., Ltd. Document name: Notification of Termination of Patent Right |
|
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |