CN205225303U - Let in grades and press stock tray - Google Patents
Let in grades and press stock tray Download PDFInfo
- Publication number
- CN205225303U CN205225303U CN201521108039.1U CN201521108039U CN205225303U CN 205225303 U CN205225303 U CN 205225303U CN 201521108039 U CN201521108039 U CN 201521108039U CN 205225303 U CN205225303 U CN 205225303U
- Authority
- CN
- China
- Prior art keywords
- round platform
- pressure
- pallet
- laminate
- main body
- 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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- Pit Excavations, Shoring, Fill Or Stabilisation Of Slopes (AREA)
Abstract
The utility model discloses an one (b) plants let in grades and press stock tray, tray main body is by hot rolling steel stamping forming, tray main body is the rotary -table, its characterized in that: tray main body comprises two parts, includes that the round platform that contacts with the anchoring body asks the disk substrate body and sphere let and presses the body, the round platform asks disk substrate body holding surface to be circular, the sphere lets the pressure physical stamina enough overlap on the round platform holds in the palm the disk substrate body, the round platform asks disk substrate body center and sphere to let pressure body center at same axis, under the effect of crustal stress, the stock receives the tensile stress, causes to let the clamping ring by the compressive strain. The utility model discloses deformability is strong for let in grades and press stock tray adaptation country rock, and the gradable lets the pressure, and bearing capacity was big the later stage, better and the stock phase -match that excels in.
Description
Technical field
The present invention relates to the anchor rod system of mine working, traffic tunnel, the supporting of water conservancy culvert, particularly relate to the pallet on anchor pole.
Background technology
In Underground Roadway Bolts supporting, pallet is a vitals in Bolt System.Because the power of bolt action in surface, tunnel is that a centrostigma carries, if anchor nut directly acts on country rock, great for generation stress is concentrated, be easy to penetrate country rock and cause anchor pole to lose efficacy, adopt pallet to connect for this reason and realize load transmission, play carrying effect.Being uniformly distributed of anchor pole load can also be realized by pallet, optimize termination point of anchor rod stressed, expand bolt support scope, enhance the reliability of supporting simultaneously.
The pallet that current colliery uses mainly contains plate shaped pallet, cast iron pallet, butterfly pallet and M shape pallet etc.Easily distortion unloading suddenly or the fracture when roadway deformation pressure is large, adaptive deformation ability, makes pressure energy power weak, is difficult to mate with High strength bolt.
Utility model content
The utility model provides a kind of gradable pressure-relieving achor bar pallet, thus solves classification in high-ground stress roadway bolting support and allow pressure problem, can ensure that this pallet forms high-strength anchored force after installing, and can suitable for surrounding rock distortion to greatest extent.
The utility model adopts following technical scheme:
A kind of classification pressure-relieving achor bar pallet, described tray main body is Rotary-table and by hot-rolled steel punch forming, described tray main body is made up of two parts, comprises the round platform pallet matrix and the spherical laminate that allows that contact with anchoring body; Described round platform pallet matrix supporting surface is circular; The described spherical laminate that allows can be enclosed within round platform pallet matrix; Described round platform pallet matrix center and the spherical laminate center that allows are at same axis, by surface plate on round platform pallet matrix supporting surface, round platform pallet matrix, spherical allow laminate supporting surface, spherically allow the center of surface plate in laminate be located on same center line, add the stability of pallet; Under the effect of geostatic stress, anchor pole tension, causes and allows pressure ring by compressive strain, spherically allows laminate enter secondary to allow pressure, realize continuing supporting.
The press reason that allows of the present utility model is:
For the high-ground stress tunnel of bolt support, should deformation controlling for rock surrounding gateways, need again to discharge stress, be coupled with the strength and stiffness of anchor pole to reach country rock.When country rock release is heavily stressed, the initial stage is comparatively large, the later stage is less, needs " allowing " time release stress is large, needs " resisting " time little.Pallet matrix due to this classification pressure-relieving achor bar pallet is frustum cone structure, diameter increases and round table surface is provided with three circles allows pressure ring gradually from top to bottom, spherically allow laminate carry out classification from top to bottom to allow pressure, its drag increases gradually, not only " allowed " but also " resisting ", conveniently realize classification and allow pressure, ensure the safe and effective of bolt support structure.
The advantage of the utility model classification pressure-relieving achor bar pallet is:
Suitable for surrounding rock deformability is strong, and can carry out classification and allow pressure, later stage supporting capacity is large, and better and high strength anchor bar matches.
Accompanying drawing explanation
Fig. 1 be classification pressure-relieving achor bar pallet allow pressure before sectional drawing.
Fig. 2 be classification pressure-relieving achor bar pallet allow pressure after sectional drawing.
Wherein: 1, anchor pole; 2, pre-load nut; 3, rigidity packing ring; 4, the spherical laminate that allows; 5, pressure ring is allowed; 6, round platform pallet matrix; 7, country rock.
Detailed description of the invention
As shown in Figure 1, a kind of classification pressure-relieving achor bar pallet, comprises pre-load nut 2, rigidity packing ring 3, spherical laminate 4 and the round platform pallet matrix 6 of allowing; Described round platform pallet matrix 6 supporting surface is circular; The described spherical laminate 4 that allows can be enclosed within round platform pallet matrix 6; The round table surface of described round platform pallet matrix 6 has three circles allow pressure ring 5; The center of described round platform pallet matrix 6 and the spherical center allowing laminate 4 are on the same axis, by surface plate on round platform pallet matrix supporting surface, round platform pallet matrix, spherical allow laminate supporting surface, spherically allow the center of surface plate in laminate be located on same center line, add the stability of pallet; Under the effect of geostatic stress, anchor pole tension, causes and allows pressure ring by compressive strain, spherically allows laminate enter secondary to allow pressure, realize continuing supporting.
Further, described in allow pressure ring 5 inside for hollow structure, can deformation failure when reaching its utmost carrying ability.
As shown in Figure 2, under geostatic stress effect, owing to allowing the restriction of pressure ring 5, the spherical laminate 4 that allows first allows compressive strain, and along with pressure increases gradually, first lap loses supporting capacity by pressure ring 5, now spherically allows laminate 4 get into the second circle to allow pressure ring 5, by that analogy; Anchor rod pallet board allows the process geostatic stress of pressure be released, and now anchor rod pallet board throws away maintenance supporting capacity, reaches the object of lasting supporting with this.
More than illustrate and be only preferred embodiment of the present utility model; the utility model is not limited to enumerate above-described embodiment; any those of ordinary skill in the art are under the guidance of this manual; all equivalent alternative, the obvious variant made; within the essential scope all dropping on this manual, protection of the present utility model ought to be subject to.
Claims (4)
1. a classification pressure-relieving achor bar pallet, described tray main body is by hot-rolled steel punch forming, and described tray main body is Rotary-table, and described tray main body is made up of two parts, comprises the round platform pallet matrix and the spherical laminate that allows that contact with anchoring body; Described round platform pallet matrix supporting surface is circular, the round table surface of round platform pallet matrix has three circles allow pressure ring.
2. a kind of classification pressure-relieving achor bar pallet according to claim 1, is characterized in that the spherical laminate that allows can be enclosed within round platform pallet matrix, and can be limited by pressure ring by first lap.
3. a kind of classification pressure-relieving achor bar pallet according to claim 1, is characterized in that allowing pressure ring be hollow structure, can deformation failure when it reaches utmost carrying ability.
4. a kind of classification pressure-relieving achor bar pallet according to claim 1, it is characterized in that surface plate on round platform pallet matrix supporting surface, round platform pallet matrix, spherical allow laminate supporting surface, spherically allow the center of surface plate in laminate be located on same center line, round platform pallet matrix makes surface plate opening diameter in laminate identical with spherical.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521108039.1U CN205225303U (en) | 2015-12-29 | 2015-12-29 | Let in grades and press stock tray |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521108039.1U CN205225303U (en) | 2015-12-29 | 2015-12-29 | Let in grades and press stock tray |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205225303U true CN205225303U (en) | 2016-05-11 |
Family
ID=55900377
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201521108039.1U Expired - Fee Related CN205225303U (en) | 2015-12-29 | 2015-12-29 | Let in grades and press stock tray |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205225303U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105781599A (en) * | 2016-05-20 | 2016-07-20 | 辽宁工程技术大学 | Energy absorption anchor rod tray |
| CN107035395A (en) * | 2017-06-08 | 2017-08-11 | 山东科技大学 | Pressure-relieving achor bar pallet and application method with alarm function |
| 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 |
| 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 |
| CN111997670A (en) * | 2020-07-29 | 2020-11-27 | 中国矿业大学 | Ultrahigh-strength mining anchoring assembly and application |
-
2015
- 2015-12-29 CN CN201521108039.1U patent/CN205225303U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105781599A (en) * | 2016-05-20 | 2016-07-20 | 辽宁工程技术大学 | Energy absorption anchor rod tray |
| 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 |
| 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 |
| 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 |
| CN107035395A (en) * | 2017-06-08 | 2017-08-11 | 山东科技大学 | Pressure-relieving achor bar pallet and application method with alarm function |
| CN111997670A (en) * | 2020-07-29 | 2020-11-27 | 中国矿业大学 | Ultrahigh-strength mining anchoring assembly and application |
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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: 20160511 Termination date: 20161229 |