CN206071628U - A kind of new pressure-relieving achor bar - Google Patents
A kind of new pressure-relieving achor bar Download PDFInfo
- Publication number
- CN206071628U CN206071628U CN201621127971.3U CN201621127971U CN206071628U CN 206071628 U CN206071628 U CN 206071628U CN 201621127971 U CN201621127971 U CN 201621127971U CN 206071628 U CN206071628 U CN 206071628U
- Authority
- CN
- China
- Prior art keywords
- pressure
- roof
- anchor pole
- pallet
- nut
- 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
Links
Abstract
This utility model discloses a kind of new pressure-relieving achor bar.Increase conical head on hex nut, make one, nut that there is certain chamfer angle, by the section in echelon of rounded corner in pallet, using chamfering realize pallet along slow movement from nut to anchor pole afterbody, and then realize anchor pole slowly allow pressure.This utility model is mainly used in mining engineering supporting field, in particular for anchor pole in Bracing Process have necessarily allow pressure distance Deep Roadway.
Description
Technical field：
This utility model is a kind of new pressure-relieving achor bar suspension device, it is adaptable to the colliery of deep mining, metal mine etc.
Mining engineering supporting field.
Background technology：
At present, in deeps mines recovery process, as tunnel buried depth is big, crustal stress is huge, and after roadway excavation, country rock becomes
Shape amount is big, and conventional anchor pole, is usually pulled off in the presence of crustal stress due to no deformation allowance in supported laneway, because
This, conventional anchor pole effect used in the Deep Roadway of heavily stressed and large deformation is undesirable.The appearance of pressure-relieving achor bar is solved well
Determine this problem, existing pressure-relieving achor bar is allowed by way of pressure ring installing additional between anchor rod pallet board and nut, realizes ground
The control that has for having control release and anchor pole of stress allows pressure.When the tension that anchor pole is subject to more than allow pressure ring intensity when, allow pressure
Ring compressive deformation, makes the anchorage length of whole anchor bar suspension device increase on a small quantity, to adapt to tunnel under high surrouding rock stress state
Large deformation, so as to avoid anchor pole from being pulled off because of the large deformation of roadway surrounding rock.But, the allowing of existing pressure-relieving achor bar presses through journey to be had
Paroxysmal feature, due to making pressure ring deformation more rapid, anchor rod pallet board is move to anchor pole afterbody and allow can be right during pressure
Anchor pole produces impact forces, unfavorable to anchor bar suspension device.
The content of the invention：
The pressure ring that allows to overcome pressure-relieving achor bar has the shortcomings that sudden and impact, this utility model profit in deformation process
Pressure device is allowed with roof-shaped pallet and conical head nut screw connection composition, there is provided a kind of new pressure-relieving achor bar, by pallet inner circle
It is trapezoidal inner circle structure that chamfered forms two sections.Wherein the inner circle structure at top is for the conehead with taper head nut
Coordinate, realize that roof-shaped pallet is moved to anchor pole afterbody along taper head nut using the Frictional Slipping of chamfering, and then realize slow
Allow pressure；And the inner circle structure of bottom is for continuing with next roof-shaped pallet, continued roof-shaped tray number by adjustment
Realize slowly allowing the change of pressure distance with the mode for changing conical head nut conehead length.This utility model by twisted steel anchor rod,
Roof-shaped pallet, taper head nut composition.
This utility model solves the technical scheme adopted by existing pressure-relieving achor bar technical problem, and the one of anchor pole hex nut
An outwardly circle ring column, circle ring column external diameter with hex nut edge regular hexagon inscribed circle as maximum outside diameter, to
Interior certain angle is formed slopely conehead, and the length of conehead is depending on allowing and pressing distance；Circle ring column internal diameter and hex nut internal diameter one
Cause, and retain screw thread.And roof-shaped pallet forms two chamferings, the section shape of pallet inner circle to top bottom at the middle part of pallet inner circle
Shape is the trapezoidal of two shared top margins.The chamfer angle of tray top inner circle is equal with the conehead inclination angle of taper head nut, pallet
Can move to anchor pole afterbody along the conehead of taper head nut under surrouding rock stress effect, as nut conehead and pallet are mutually squeezed
Pressure is acted on and inclination contact effect between the two, and nut conehead is subject to inside extruding force, so as to preferably be fastened on anchor pole
On screw thread, and tray top is subject to outside expansionary force, and in tray top, diameter of a circle slowly can increase, so as to anchor pole afterbody
It is mobile, make anchor pole slowly allow pressure.But pallet unconfined will not be moved to anchor pole afterbody, and anchor pole also unconfined will not allow pressure,
When reach design allow pressure distance after, tray top can be pushed up on hex nut, so as to terminate to allow pressure.Tray bottom inner circle fall
Angle angle is equal with the inclination angle of roof-shaped pallet roof-shaped bossing, to coordinate continuing for next roof-shaped pallet, so as to
That improves pressure-relieving achor bar allows pressure distance.
The beneficial effects of the utility model are, new pressure-relieving achor bar is eliminated and allows ring member, simplifies the installation of anchor pole
Program, while making full use of the parts of existing anchor pole, by roof-shaped pallet and taper head nut, realizes the slow of pressure-relieving achor bar
Slowly allow pressure, it is to avoid anchor pole to allow and impact failure is subject to during pressure.
Description of the drawings：
Fig. 1 is whole structure figure of the present utility model；
Fig. 2 is overall installation diagram of the present utility model, label title in Fig. 2：1st, twisted steel anchor rod, 2, roof-shaped pallet,
3rd, taper head nut；
Fig. 3 is twisted steel anchor rod part drawing of the present utility model；
Fig. 4 is roof-shaped trays of parts figure of the present utility model；
Fig. 5 is conical head nut part figure of the present utility model；
Fig. 6 is the assembling enlarged drawing of roof-shaped pallet of the present utility model and taper head nut；
Fig. 7 be it is of the present utility model enforcement installation steps figure, each label implication in Fig. 7：1～5 represents that enforcement is installed respectively
Step 1～5.
Fig. 8 is the partial enlargement comparison diagram of anchor pole afterbody before and after this utility model is applied to roadway surrounding rock generation large deformation.
Specific embodiment：
1st, as shown in step 1～2 in Fig. 7, first with jumbolter equipment in anchorage zone construction drill, then utilize
Compressed air injection hole is cleared up floating dust therein by air compressor.
2nd, as shown in step 3～4 in Fig. 7, resin explosive roll is withstood using the twisted steel anchor rod (1) shown in Fig. 3 and send into drilling
In, after foot of hole is reached, anchor pole punctures resin explosive roll so as to termination point of anchor rod is anchored at foot of hole.
3rd, as shown in step 5 in Fig. 7, installed such as Fig. 4～5 successively with shown structure according to Fig. 2 pressure-relieving achor bars integral installation
(2) two, shown roof-shaped pallet and taper head nut (3), wherein, the quantity of roof-shaped pallet (2) is according to allowing pressure distance to select
Select.Tighten and complete to install after taper head nut (3) applies prestressing force to pressure-relieving achor bar, pressure-relieving achor bar whole structure and installation diagram are such as
Shown in Fig. 1～2.Two roof-shaped pallets (2) are as shown in Figure 6 with the assembling enlarged drawing of taper head nut (3).Roadway surrounding rock is produced
Before and after large deformation, the partial enlargement contrast of anchor pole afterbody is as shown in Figure 8.
Claims (2)
1. a kind of new pressure-relieving achor bar, makes pressure-relieving achor bar slowly allow pressure using roof-shaped pallet and taper head nut, it is characterized in that：
Roof-shaped pallet can be moved along the conehead of taper head nut to anchor pole afterbody using chamfer configuration in pallet inner circle, make anchor pole
Allow pressure；Wherein, the inner circle top chamfer of the roof-shaped pallet is for using cooperatively with the conehead of taper head nut, roof-shaped support
The inner circle bottom chamfer of disk is used for the next roof-shaped pallet that continues.
2. new pressure-relieving achor bar according to claim 1, is characterized in that：The hex nut size of taper head nut compares conehead
Size it is big, enable anchor pole to allow pressure to terminate rear roof-shaped pallet and push up on hex nut, allow pressure to terminate rear roof for limiting
The movement of shape pallet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621127971.3U CN206071628U (en) | 2016-10-17 | 2016-10-17 | A kind of new pressure-relieving achor bar |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621127971.3U CN206071628U (en) | 2016-10-17 | 2016-10-17 | A kind of new pressure-relieving achor bar |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206071628U true CN206071628U (en) | 2017-04-05 |
Family
ID=58442574
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621127971.3U Expired - Fee Related CN206071628U (en) | 2016-10-17 | 2016-10-17 | A kind of new pressure-relieving achor bar |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206071628U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108775251A (en) * | 2018-06-08 | 2018-11-09 | 王跃平 | Anchor cable unloader |
-
2016
- 2016-10-17 CN CN201621127971.3U patent/CN206071628U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108775251A (en) * | 2018-06-08 | 2018-11-09 | 王跃平 | Anchor cable unloader |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170405 Termination date: 20171017 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |