CN206144586U - Novel multistage pressure stock that lets - Google Patents
Novel multistage pressure stock that lets Download PDFInfo
- Publication number
- CN206144586U CN206144586U CN201621174519.2U CN201621174519U CN206144586U CN 206144586 U CN206144586 U CN 206144586U CN 201621174519 U CN201621174519 U CN 201621174519U CN 206144586 U CN206144586 U CN 206144586U
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- China
- Prior art keywords
- stopper
- help
- stake
- pressure
- lets
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- Expired - Fee Related
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Abstract
The utility model discloses a novel multistage pressure stock that lets, including the stock body of rod, layer board, let the pressure drag buddhist nun, help the stopper that expands, inflation stake, spring, nut. Let the pressure drag buddhist nun use the stock body of rod to install at the layer board and help between the bloated stopper as center line symmetry. Help the outer wall of the stopper that expands and the inner wall of inflation stake to be equipped with the wedge projection that the specification is unanimous. Helping that to expand the stopper local nested in the inflation stake and guarantee that nested part helps expand a stopper and an inflation intermeshing. Let the pressure drag buddhist nun be out of shape required pressure owing to helping expand stopper and frictional force between inflation stake intermeshing part to be greater than, when the stock because of the mining industry manifests during great deformations of violent production, let at first compressive deformation and realize that the one -level lets pressures of pressure drag buddhist nun, when the stock atress is bigger, the inflation stake can be helped the stopper that expands constantly to strut and realized that the secondary lets pressures, after the one end that the inflation stake has a wedge projection is strutted totally, helping bloated bottom surface meeting and the spring of filling in to contact at last, the last one -level of spring atress deformation realization lets the pressure.
Description
Technical field
This utility model is related to a kind of new multistage pressure-relieving achor bar, affiliated mine bolt technical field.
Background technology
In recent years, domestic many collieries all enter successively deep mining, great burying, highland pressure, the geology bar of high-ground stress
Part, to support work great difficulty is brought, and rock deformation is big, and ground pressure manifests strongly, existing support material low intensity, is prolonged
Malleability is poor, it is impossible to well adapt to surrouding rock deformation, occurs in that the disrumpent feelings failure phenomenon of large area anchor pole, has had a strong impact on the peace of mine
Full production.For this phenomenon, most domestic mine is started with from the mechanical property for improving anchor pole, is advised using support material is increased
The methods such as lattice, improvement material, Enhanced support constraint surrouding rock deformation, but this not only greatly increases support cost, and anchor pole
The phenomenon being pulled off still happens occasionally.
The content of the invention
This utility model overcomes the shortcomings of that prior art is present, and technical problem to be solved is to provide one kind and can realize
The multistage anchor pole for allowing pressure, effectively reduces anchor pole tension breakage phenomenon, so as to preferably safeguard the steady of the larger roadway surrounding rock of deflection
It is fixed.
In order to solve technical problem, the technical scheme that this utility model is adopted is：A kind of new multistage allows pressure anchor
Bar, including anchor rod body, supporting plate, allow pressure drag Buddhist nun, help swollen plug, expansion stake, spring, nut.The anchor pole bar between supporting plate and nut
Body is from top to bottom sequentially passed through and helps swollen plug, expansion stake, spring.Pressure drag Buddhist nun line centered on anchor rod body is allowed to be symmetrically mounted on supporting plate
With help between swollen plug.The outer wall of swollen plug and the inwall of expansion stake is helped to be provided with the consistent wedge-shaped protrusion of specification.Help swollen plug local nested
It is intermeshed in expanding in stake and ensureing that nested parts help swollen plug and expand stake.Will seek help swollen plug and expansion stake intermeshing simultaneously
Frictional force between part is more than the pressure for making pressure damping block deformation required.
The beneficial effects of the utility model are, as a result of such scheme when anchor pole acutely produce larger because manifests in mining industry
During deformation, allow pressure drag Buddhist nun compressive deformation first and realize that one-level allows pressure, due to helping swollen plug and expanding between stake intermeshing part
Higher than the pressure for making pressure damping block deformation required, when rockbolt stress is bigger, expansion stake can be helped swollen plug constantly to support to frictional force
Open realize it is secondary allow pressure, finally after expanding the one end of stake with wedge-shaped protrusion and being strutted completely, help the bottom surface of swollen plug can be with bullet
Spring is contacted, and spring stress deformation realizes that afterbody allows pressure.Therefore can substantially reduce anchor pole because stress is excessive be pulled off can
Can, while preferably safeguarding stablizing for the larger tunnel of deflection.
Description of the drawings
Below in conjunction with the accompanying drawings the utility model is described in further detail
Fig. 1 is principle schematic diagram. of the present utility model.
In Fig. 1,1. anchor rod body, 2. supporting plate, 3. allow pressure drag Buddhist nun, 4. help swollen plug, 5. expand stake, 6. spring, 7. nut.
Specific embodiment
As shown in figure 1, this utility model is a kind of new multistage presses anchor pole, including anchor rod body（1）, supporting plate（2）, allow pressure
Damping（3）, help swollen plug（4）, expansion stake（5）, spring（6）, nut（7）.Anchor rod body（1）From top to bottom sequentially pass through supporting plate
（2）, help swollen plug（4）, expansion stake（5）, spring（6）, allow pressure drag Buddhist nun（3）With anchor rod body（1）Centered on line be symmetrically mounted on support
Plate（2）With help swollen plug（4）Between.Help swollen plug（4）Outer wall and expansion stake（5）Inwall be provided with the consistent wedge-shaped protrusion of specification,
Help swollen plug（4）Local is nested in expansion stake（5）It is interior and ensure that nested parts help swollen plug（4）With expansion stake（5）Intermeshing, anchor pole
The body of rod（1）Least significant end outside country rock passes through nut（7）Tightly fix.
Claims (1)
1. a kind of new multistage pressure-relieving achor bar, including anchor rod body（1）, supporting plate（2）, allow pressure drag Buddhist nun（3）, help swollen plug（4）, expansion
Stake（5）, spring（6）, nut（7）, it is characterized in that：Anchor rod body（1）From top to bottom sequentially pass through supporting plate（2）, help swollen plug（4）、
Expansion stake（5）, spring（6）, allow pressure drag Buddhist nun（3）With anchor rod body（1）Centered on line be symmetrically mounted on supporting plate（2）With help swollen plug
（4）Between, help swollen plug（4）Outer wall and expansion stake（5）Inwall be provided with the consistent wedge-shaped protrusion of specification, help swollen plug（4）Locally
It is nested in expansion stake（5）It is interior and ensure that nested parts help swollen plug（4）With expansion stake（5）Intermeshing, anchor rod body（1）Positioned at enclosing
Least significant end outside rock passes through nut（7）Tightly fix.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621174519.2U CN206144586U (en) | 2016-10-27 | 2016-10-27 | Novel multistage pressure stock that lets |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621174519.2U CN206144586U (en) | 2016-10-27 | 2016-10-27 | Novel multistage pressure stock that lets |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206144586U true CN206144586U (en) | 2017-05-03 |
Family
ID=58623844
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621174519.2U Expired - Fee Related CN206144586U (en) | 2016-10-27 | 2016-10-27 | Novel multistage pressure stock that lets |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206144586U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107060810A (en) * | 2017-06-07 | 2017-08-18 | 神华集团有限责任公司 | It is a kind of adapt to roadway deformation allow pressure once supporting method |
| CN107060856A (en) * | 2017-06-07 | 2017-08-18 | 神华集团有限责任公司 | Allow pressure device outside a kind of active multistage frequency conversion |
| CN112901232A (en) * | 2021-04-07 | 2021-06-04 | 广西大学 | Multistage pressure stock that lets of compensation prestressing force loss |
-
2016
- 2016-10-27 CN CN201621174519.2U patent/CN206144586U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107060810A (en) * | 2017-06-07 | 2017-08-18 | 神华集团有限责任公司 | It is a kind of adapt to roadway deformation allow pressure once supporting method |
| CN107060856A (en) * | 2017-06-07 | 2017-08-18 | 神华集团有限责任公司 | Allow pressure device outside a kind of active multistage frequency conversion |
| CN107060810B (en) * | 2017-06-07 | 2020-09-25 | 神华集团有限责任公司 | Yielding primary support method adaptive to roadway deformation |
| CN112901232A (en) * | 2021-04-07 | 2021-06-04 | 广西大学 | Multistage pressure stock that lets of compensation prestressing force loss |
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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: 20170503 Termination date: 20171027 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |