CN205297607U - Device is applyed to NPR constant -resistance stock pretightning force - Google Patents
Device is applyed to NPR constant -resistance stock pretightning force Download PDFInfo
- Publication number
- CN205297607U CN205297607U CN201620044257.1U CN201620044257U CN205297607U CN 205297607 U CN205297607 U CN 205297607U CN 201620044257 U CN201620044257 U CN 201620044257U CN 205297607 U CN205297607 U CN 205297607U
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- stretch
- draw
- npr
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- stock
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Abstract
The utility model relates to a device is applyed to NPR constant -resistance stock pretightning force, it includes applys the device body, applying the device body and including the stock tray, this stock tray right flank middle part is provided with the perforation, is provided with the stock nut in this perforation, is provided with the stake of shaft type stretch -draw worker on this stock tray right flank, and the right flank of this stretch -draw worker stake is connected with the stretch -draw machine, it has the NPR constant -resistance stock soon to twist in the stock nut on the stock tray, and on the adapter that revolves in the stake of stretch -draw worker was twisted to the right side end of this NPR constant -resistance stock, the pubescent anchor rope was connected to the other end of this adapter, and it is quick -witted continuous that this weak point anchor rope alternated stretch -draw worker and stretch -draw, stretch -draw worker stake left side bottom is provided with the pretension opening, it utilizes the stretch -draw machines of the anchor rope in colliery, realizes that a machine is dual -purpose, sparingly equips the acquisition cost, has simple structure, can reduce cost and greatly improved advantage such as work efficiency height.
Description
Technical field
This utility model relates to a kind of NPR constant-resistance bolt pretension bringing device.
Background technology
For China's coal-mine soft-rock tunnel Large Deformation Support technical barrier, need when having use NPR constant-resistance anchor pole to apply significantly high pretightning force, its pretightning force of anchor pole for 25t to reach 18t, and the high-strength screw-thread steel bolt pretension of routine only has 2-3t, conventional bolt pretension constantly rotates nut realize the pretightning force of anchor pole mainly through torque wrench or pneumatic impact spanner applying moment of torsion, maximum being only capable of reaches 4-5t, excessive moment of torsion is easily caused anchor pole and is twisted off, therefore seriously restrict the applying of anchor pole high pretightening force, this problem is not yet had at present to solution. For to apply the novel NPR constant-resistance anchor pole of very big pretightning force, adopt the spanner of the pretension of common bolt, it is clear that pretightning force requirement can not be met. Although the anchorage cable stretching machine power that only has that can realize high pretightening force stretch-draw at present disclosure satisfy that, but anchor cable and anchor pole are diverse rod body materials, anchor cable is flexible body, is only capable of realizing stretch-draw and can not realize reversing, and anchorage cable stretching machine can not directly be adapted on anchor pole. Therefore, in the urgent need to a kind of novel pretightning force bringing device, anchorage cable stretching machine is applied on NPR constant-resistance anchor pole, it is achieved high pretightening force applies, and allows NPR constant-resistance anchor pole put in coal production.
Utility model content
The purpose of this utility model is in that the defect for prior art and deficiency, a kind of simple in construction is provided, a kind of NPR constant-resistance bolt pretension bringing device reasonable in design, easy to use, it can not only meet the stretch-draw demand to novel anchor rod pretightning force, and fully use the existing anchor cable pretightning force tensioner in colliery to realize the applying to bolt pretension, utilize the tensioner of the anchor cable in colliery, realize dual-use, save equipment acquisition cost, there is simple in construction, cost can be reduced and greatly improve work efficiency advantages of higher.
For achieving the above object, the technical solution adopted in the utility model is:
A kind of NPR constant-resistance bolt pretension bringing device described in the utility model, it includes bringing device body, described bringing device body includes anchor rod pallet board, it is provided with perforation in the middle part of this anchor rod pallet board right flank, this perforation is provided with anchor nut, being provided with the stretch-draw work stake of tubular on this anchor rod pallet board right flank, the right flank of this stretch-draw work stake is connected to stretching machine;Twisting in anchor nut on described anchor rod pallet board and be rotary with NPR constant-resistance anchor pole, the right-hand end of this NPR constant-resistance anchor pole is twisted on the adapter being spun in stretch-draw work stake, and the other end of this adapter is connected to short anchor cable, and this short anchor cable is inserted through stretch-draw work stake and is connected with stretching machine; Described stretch-draw work stake left bottom is provided with pretension opening.
Further, described stretch-draw work stake is provided with skylight.
After adopting said structure, this utility model has the beneficial effect that a kind of NPR constant-resistance bolt pretension bringing device described in the utility model, it can not only meet the stretch-draw demand to novel anchor rod pretightning force, and fully use the existing anchor cable pretightning force tensioner in colliery to realize the applying to bolt pretension, utilize the tensioner of the anchor cable in colliery, it is achieved dual-use, save equipment acquisition cost, there is simple in construction, cost can be reduced and greatly improve work efficiency advantages of higher.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model;
Fig. 2 is the structural representation of pre-spanner of the present utility model.
Description of reference numerals:
1, anchor rod pallet board; 2, anchor nut; 3, stretch-draw work stake; 4, NPR constant-resistance anchor pole; 5, pretension opening; 6, adapter; 7, short anchor cable; 8, stretching machine; 9, pre-spanner.
Detailed description of the invention
Below in conjunction with accompanying drawing, this utility model is further described.
As shown in Figure 1 and Figure 2, a kind of NPR constant-resistance bolt pretension bringing device described in the utility model, it includes bringing device body, described bringing device body includes anchor rod pallet board 1, it is provided with perforation in the middle part of this anchor rod pallet board 1 right flank, being provided with anchor nut 2 in this perforation, this anchor rod pallet board 1 right flank is provided with the stretch-draw work stake 3 of tubular, the right flank of this stretch-draw work stake 3 is connected to stretching machine 8; Twist in anchor nut 2 on described anchor rod pallet board 1 and be rotary with NPR constant-resistance anchor pole 4, the right-hand end of this NPR constant-resistance anchor pole 4 is twisted on the adapter 6 being spun in stretch-draw work stake 3, the other end of this adapter 6 is connected to short anchor cable 7, and this short anchor cable 7 is inserted through stretch-draw work stake 3 and is connected with stretching machine 8; Described stretch-draw work stake 3 left bottom is provided with pretension opening 5.
Preferred as one of the present utility model, described stretch-draw work stake 3 is provided with skylight.
In this utility model, in anchorage cable stretching machine front end, install a switching device additional, switching device has a short anchor cable, make stretching machine pass through the stretch-draw to short anchor cable, indirectly realize the stretch-draw to anchor pole. But it is to increase switching device, anchorage cable stretching machine does not have the strong point, by increasing similar cylinder type stretch-draw work stake, as the anchorage cable stretching machine strong point, support force required for anchorage cable stretching machine is delivered on country rock, and in stretch-draw work stake lateral openings, it is achieved the anchor nut after stretch-draw is tightened reservation pretightning force.
When this utility model uses, first short anchor cable 7 is connected with adapter 6, then adapter 6 is tightened on NPR constant-resistance anchor pole 4, then tensioning tooling is allowed to pass the short anchor cable on adapter, make stretch-draw work stake 3 arrive to NPR constant-resistance anchor pole 4 drags, the last stretching machine 8 short anchor cable 7 of traverse, start hydraulic test and bite short anchor cable 7 by stretching machine 8, NPR constant-resistance anchor pole 4 is carried out stretch-draw, when reaching the pretightning force that this type anchor pole specifies, keep pretightning force, anchor nut 2 on anchor pole are tightened from the skylight of stretch-draw work stake 3 with pre-spanner 9, return stretching machine 8, complete this type anchor pole and apply pretightning force process.
A kind of NPR constant-resistance bolt pretension bringing device described in the utility model, it can not only meet the stretch-draw demand to novel anchor rod pretightning force, and fully use the existing anchor cable pretightning force tensioner in colliery to realize the applying to bolt pretension, utilize the tensioner of the anchor cable in colliery, realize dual-use, save equipment acquisition cost, there is simple in construction, cost can be reduced and greatly improve work efficiency advantages of higher.
The above is only better embodiment of the present utility model, therefore all equivalences done according to the structure described in this utility model patent claim, feature and principle change or modify, and are all included in this utility model patent claim.
Claims (2)
1. a NPR constant-resistance bolt pretension bringing device, it is characterized in that: it includes bringing device body, described bringing device body includes anchor rod pallet board (1), it is provided with perforation in the middle part of this anchor rod pallet board (1) right flank, this perforation is provided with anchor nut (2), being provided with stretch-draw work stake (3) of tubular on this anchor rod pallet board (1) right flank, the right flank of this stretch-draw work stake (3) is connected to stretching machine (8); Twist in anchor nut (2) on described anchor rod pallet board (1) and be rotary with NPR constant-resistance anchor pole (4), the right-hand end of this NPR constant-resistance anchor pole (4) is twisted on the adapter (6) being spun in stretch-draw work stake (3), the other end of this adapter (6) is connected to short anchor cable (7), and this short anchor cable (7) is inserted through stretch-draw work stake (3) and is connected with stretching machine (8); Described stretch-draw work stake (3) left bottom is provided with pretension opening (5).
2. a kind of NPR constant-resistance bolt pretension bringing device according to claim 1, it is characterised in that: described stretch-draw work stake (3) is provided with skylight.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620044257.1U CN205297607U (en) | 2016-01-18 | 2016-01-18 | Device is applyed to NPR constant -resistance stock pretightning force |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620044257.1U CN205297607U (en) | 2016-01-18 | 2016-01-18 | Device is applyed to NPR constant -resistance stock pretightning force |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205297607U true CN205297607U (en) | 2016-06-08 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620044257.1U Expired - Fee Related CN205297607U (en) | 2016-01-18 | 2016-01-18 | Device is applyed to NPR constant -resistance stock pretightning force |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205297607U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111451943A (en) * | 2020-04-14 | 2020-07-28 | 中国石油大学(华东) | Hollow sucker rod tensile force applying device and shot blasting method |
| CN114215174A (en) * | 2021-11-11 | 2022-03-22 | 中国矿业大学(北京) | Constant-resistance large-deformation anchoring device suitable for building structure earthquake-resistant node |
| CN114960676A (en) * | 2022-06-16 | 2022-08-30 | 广州市第二市政工程有限公司 | Construction method of pressure injection type tubular pile enclosure supporting structure with embedded flexible anchor rod |
-
2016
- 2016-01-18 CN CN201620044257.1U patent/CN205297607U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111451943A (en) * | 2020-04-14 | 2020-07-28 | 中国石油大学(华东) | Hollow sucker rod tensile force applying device and shot blasting method |
| CN111451943B (en) * | 2020-04-14 | 2022-02-08 | 中国石油大学(华东) | Hollow sucker rod tensile force applying device and shot blasting method |
| CN114215174A (en) * | 2021-11-11 | 2022-03-22 | 中国矿业大学(北京) | Constant-resistance large-deformation anchoring device suitable for building structure earthquake-resistant node |
| CN114960676A (en) * | 2022-06-16 | 2022-08-30 | 广州市第二市政工程有限公司 | Construction method of pressure injection type tubular pile enclosure supporting structure with embedded flexible anchor rod |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160608 Termination date: 20170118 |