CN206144585U - Novel multistage pressure stock that lets - Google Patents
Novel multistage pressure stock that lets Download PDFInfo
- Publication number
- CN206144585U CN206144585U CN201621172455.2U CN201621172455U CN206144585U CN 206144585 U CN206144585 U CN 206144585U CN 201621172455 U CN201621172455 U CN 201621172455U CN 206144585 U CN206144585 U CN 206144585U
- Authority
- CN
- China
- Prior art keywords
- leaf spring
- layer
- pressure
- spring
- clamping 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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- Piles And Underground Anchors (AREA)
Abstract
The utility model provides a novel multistage pressure stock that lets, includes the body of rod, mounting plate, last leaf spring, plays spring clamping, overhead gage, three -layer by clamping ring, time baffle, time leaf spring, bottom plate, nut. Its leading features is: the stock body of rod passes mounting plate, last leaf spring, overhead gage, three -layer from top to bottom by clamping ring, lower baffle, lower leaf spring, bottom plate, nut in proper order. Going up leaf spring and compriseing three steel sheet respectively with lower leaf spring, three steel sheet is together fixed by playing spring clamping. The three -layer is spherical by the clamping ring is outmost, the two -layer spheroidicity that be in the inside, and the radian minimum of the inside one deck. Because the three -layer is greater than leaf spring and leaf spring's intensity down by the intensity of clamping ring, when the stock atress increases with continuouslying, go up leaf spring and lower leaf spring realization one -level and let the pressure, afterwards, the three -layer lets the pressure by clamping ring realization second grade. Let the pressure through the two -stage, reduced the possibility of stock because of the too big damage of atress, more be favorable to maintaining the stability in tunnel.
Description
Technical field
This utility model is related to a kind of mining supports equipment, specifically a kind of new multistage pressure-relieving achor bar.
Background technology
Suspension roof support is referred to adopts in the construction of the earth's surface engineering and tunnel, stope etc. such as side slope, ground deep basal pit underground chamber
A kind of its support reinforcement mode, is especially widely used in current mining support field.Specifically with gold
Category part, wooden piece, polymer member or other materials make roofbolt, squeeze into the pre-drilled hole of earth's surface rock mass or chamber surrounding rock body
In, using its head, the special tectonic of the body of rod and afterbody supporting plate（Also can be without）, or depend on cohesive action by country rock with it is stable
Rock mass is combined together and produces suspension effectiveness, combination beam effect, reinforcing effect, to reach the purpose of supporting.Used at present
Common bolt elongation it is not enough, and intensity can be reduced after its extension, and these features cause it to meet existing depth
Portion's exploitation is pressed and shock proof requirement for allowing.
The content of the invention
To solve the above problems, this utility model provides a kind of new multistage pressure-relieving achor bar, when the country rock in mine laneway
When deforming or pressure becomes big, anchor pole can pass through the multistage supporting intensity and anchor pole for allowing pressure to keep anchor pole
Integrity.
The purpose of this utility model is achieved through the following technical solutions：
A kind of new multistage pressure-relieving achor bar, including the body of rod, mounting plate, upper steel plate spring, alligator clamp, overhead gage, three layers allow
Pressure ring, lower baffle plate, lower steel plate spring, bottom plate, nut.It is mainly characterized by：Anchor rod body from top to bottom sequentially passes through pop-up
Plate, upper steel plate spring, overhead gage, three layers allow pressure ring, lower baffle plate, lower steel plate spring, bottom plate, nut.Upper steel plate spring is with
Leaf spring is made up of respectively three steel plates, and three steel plates are fixed together by alligator clamp.Three layers allow pressure ring outermost layer for spherical,
The inside two-layer is elliposoidal, and the radian of most one layer of the inside is minimum, and three layers allow between pressure ring and upper steel plate spring and are provided with overhead gage,
Three layers allow between pressure ring and lower steel plate spring and are provided with lower baffle plate.
The beneficial effects of the utility model are：
As a result of above-mentioned technical proposal, when anchor pole acutely produces moderate finite deformation because ore deposit pressure manifests, upper steel plate spring
Realize that one-level allows pressure with lower steel plate spring elder generation compressive deformation, allow the intensity of pressure ring to be more than upper steel plate spring and lower steel plate due to three layers
Spring, therefore, when rockbolt stress continues to increase, three layers pressure ring can be deformed, that is, realize that two grades allow pressure.So, pass through
Two-stage allows pressure to substantially reduce the possibility that anchor pole is damaged because stress is excessive, is more beneficial for safeguarding stablizing for tunnel.
Description of the drawings
Fig. 1 is structural representation of the present utility model.
In Fig. 1,1 is the body of rod, and 2 is nut, and 3 is bottom plate, and 4 is alligator clamp, and 5 is lower steel plate spring, and 6 is lower baffle plate, and 7 are
Three layers allow pressure ring, and 8 is overhead gage, and 9 is upper steel plate spring, and 10 is mounting plate.
Specific embodiment
This utility model is further discussed below below in conjunction with accompanying drawing.
As shown in figure 1, a kind of new multistage pressure-relieving achor bar of this utility model, including the body of rod 1, nut 2, bottom plate 3, spring
Folder 4, lower steel plate spring 5,6, three layers of lower baffle plate allows pressure ring 7, overhead gage 8, upper steel plate spring 9, mounting plate 10.The body of rod 1 is by up to
Under sequentially pass through mounting plate 10, upper steel plate spring 9,8, three layers of overhead gage and allow pressure ring 7, lower baffle plate 6, lower steel plate spring 5, bottom plate
3rd, nut 2.Wherein, alligator clamp 4 by three Interal fixations together, respectively constitute upper steel plate spring 9 and lower steel plate spring 5.Will
The body of rod 1 is anchored in the borehole, makes mounting plate 10 be close to country rock, and makes to be in close contact between each ingredient, finally by nut 2
Screw, reach regulation pretightning force.
Claims (1)
1. a kind of new multistage pressure-relieving achor bar, including the body of rod（1）, nut（2）, bottom plate（3）, alligator clamp（4）, lower steel plate spring
（5）, lower baffle plate（6）, three layers allow pressure ring（7）, overhead gage（8）, upper steel plate spring（9）, mounting plate（10）, it is characterized in that the body of rod
（1）From top to bottom sequentially pass through mounting plate（10）, upper steel plate spring（9）, overhead gage（8）, three layers allow pressure ring（7）, lower baffle plate
（6）, lower steel plate spring（5）, bottom plate（3）, nut（2）, wherein three layers allow pressure ring（7）Intensity be more than upper steel plate spring（9）
With lower steel plate spring（5）Intensity.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621172455.2U CN206144585U (en) | 2016-10-27 | 2016-10-27 | Novel multistage pressure stock that lets |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621172455.2U CN206144585U (en) | 2016-10-27 | 2016-10-27 | Novel multistage pressure stock that lets |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206144585U true CN206144585U (en) | 2017-05-03 |
Family
ID=58623081
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621172455.2U Expired - Fee Related CN206144585U (en) | 2016-10-27 | 2016-10-27 | Novel multistage pressure stock that lets |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206144585U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110925000A (en) * | 2019-11-25 | 2020-03-27 | 绍兴文理学院 | Multi-stage yielding large-deformation tray with prestress self-applying function and using method |
| CN112832768A (en) * | 2021-02-01 | 2021-05-25 | 中国矿业大学(北京) | Roadway protection method based on small coal pillars |
-
2016
- 2016-10-27 CN CN201621172455.2U patent/CN206144585U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110925000A (en) * | 2019-11-25 | 2020-03-27 | 绍兴文理学院 | Multi-stage yielding large-deformation tray with prestress self-applying function and using method |
| CN110925000B (en) * | 2019-11-25 | 2021-03-16 | 绍兴文理学院 | Multi-stage yielding large-deformation tray with prestress self-applying function and using method |
| CN112832768A (en) * | 2021-02-01 | 2021-05-25 | 中国矿业大学(北京) | Roadway protection method based on small coal pillars |
| CN112832768B (en) * | 2021-02-01 | 2022-03-25 | 中国矿业大学(北京) | Roadway protection method based on small coal pillars |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170503 Termination date: 20171027 |