CN207420604U - A kind of superelevation anticorrosive classification pressure-relieving achor bar by force - Google Patents
A kind of superelevation anticorrosive classification pressure-relieving achor bar by force Download PDFInfo
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- CN207420604U CN207420604U CN201721295281.3U CN201721295281U CN207420604U CN 207420604 U CN207420604 U CN 207420604U CN 201721295281 U CN201721295281 U CN 201721295281U CN 207420604 U CN207420604 U CN 207420604U
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- Prior art keywords
- anticorrosive
- superelevation
- pressure
- force
- rod
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Abstract
It is especially a kind of for the superelevation of deep-well large deformation impact tunnel or chamber support anticorrosive classification pressure-relieving achor bar by force the utility model is related to a kind of superelevation anticorrosive classification pressure-relieving achor bar by force, include the integrally cylindrical body of rod, the top of the body of rod is provided with screw thread；The top of the body of rod is fixedly installed pallet, further includes multistage and allows pressure component and high-strength nut.The utility model has the advantages that：It can realize that multistage allow pressure automatically according to surrouding rock deformation, solve the problems, such as that current prop is deformed and limited by material property；The tensile strength of the body of rod can reach 1000MPa, improve supporting intensity, and shank diameter can be reduced under identical tensile strength, further reduces material cost and worker's work is strong, can improve Business Economic Benefit, alleviate enterprise's pressure；The anticorrosive cycle greatly improves, and greatly reduces the situation of anchor pole corrosion failure, improves the security in tunnel, and reliability is higher.
Description
Technical field
The utility model is related to a kind of superelevation, anticorrosive classification pressure-relieving achor bar, especially one kind are rushed for deep-well large deformation by force
Hit the superelevation of tunnel or chamber support anticorrosive classification pressure-relieving achor bar by force.
Background technology
For colliery tunnel support, with deep increase is adopted, more and more mines enter deep mining, and " three is high
The problem of one disturbance ", is on the rise.There is impact phenomenon and rheological behavior in roadway surrounding rock.For some mines, almost
90% tunnel will reprocess 3-4 times every year, considerably increase production cost, seriously constrain mine normal production and continue, right
Efficiently production brings grave danger to safety of coal mines.The strength of materials of anchor pole cannot meet the requirement of deep-well tunnel supporting at present
.On the other hand, due to the complexity of underground coal mine environment, anchor pole is subject to strength reduction, pole after the corrosion such as mine water, hydrogen sulfide
Easily it is corroded and fails.Therefore there is an urgent need for a kind of anchor poles for adapting to deep-well complex conditions roadway support.
In order to solve the problems, such as this, many experts and scholars are studied from many aspects.It is proposed in terms of support technology
Multiple technologies method.If secondary supporting is theoretical, first using the method for deformation of the surrounding rock in tunnel is allowed to discharge surrouding rock stress, using firm
Property supporting deformation controlling for rock surrounding gateways.A passive yield supporting is then used after Telescopic U-shaped steel invention.With bolt support technology
Development, strength once supporting technology improve country rock rigidity by high pre-stress, and when reaching critical conception, rock deformation is drastically
It reduces.The it is proposed of yield supporting technology is solves the problems, such as that this proposes one beneficial to direction, but currently yield supporting product
Performance is limited be subject to support material, and performance is unsatisfactory.Allowing based on sheeting caps, plastic base plate, which is pressed component and allowed, presses anchor
Bar, anchor cable intensity have that low-intensity allows pressure.Allowing based on rubber pad or rubber slab presses component and pressure-relieving achor bar, anchor
Rope there are problems that not realizing the expected pressure that allows.Using spring as allow pressure device manufacture is of high cost and precision controlling difficulty is big.
Allow laminated structure and pressure-relieving achor bar, anchor cable are affected by environment big, and performance is unstable using chemical packing material as allow pressure material.It bores
Allow laminated structure and pressure-relieving achor bar, anchor cable in hole, directionality is good, but it is big to be faced with sets of holes construction, difficulty of construction, involves great expense
Problem, it is difficult to apply at the scene.Prior current pressure-relieving achor bar be all single resistance allow pressure and cannot be with surrouding rock deformation
Realization multistage allow pressure.
On the other hand, the diameter of increase anchor pole simply had not only added cost but also had added difficulty of construction, it is important that existing
Some construction tools need to redesign, it is clear that increasing bolt diameter simply can not solve the problems, such as.Therefore experts and scholars are from carrying
It is studied in terms of the high anchor pole strength of materials.The anchor pole of 600MPa had been invented in recent years, but had still been deposited in actual use
In the situation that anchor pole is disrumpent feelings.And compared with the strength of materials of external 800MPa, China's anchor pole strength of materials is relatively low.
In terms of anchor pole corrosion resistance is improved, anchor pole is generally manufactured using carbon steel at present, underground subsurface environment tide
Containing corrosive elements such as hydrogen sulfide in wet and coal seam, electrochemistry and chemical attack easily occurs.But use epoxy with anchor cable
Resinous coat carries out anti-corrosion difference, and anchor pole does not take anti-corrosion measure generally.
Repeatedly reprocessed for tunnel, the deficiency of existing pressure-relieving achor bar, relatively low, the not corrosion-resistant anchor pole strength of materials the problem of.
Set forth herein a kind of strong anticorrosive multistage pressure-relieving achor bars of superelevation to solve the multiple rework issues in tunnel with relatively low cost, realizes
Yield supporting is classified, reduces bolt diameter, the corrosion resistance for improving anchor pole.In existing disclosed document, also fail to obtain phase
Close the report of support technology.
Utility model content
To solve the above problems, the purpose of this utility model is to provide a kind of superelevation anticorrosive classification pressure-relieving achor bar by force,
It can realize that multistage allow pressure automatically according to surrouding rock deformation.
The detailed technology scheme that the utility model is taken is：A kind of superelevation anticorrosive classification pressure-relieving achor bar by force, including whole
The cylindrical body of rod of body, the top of the body of rod are provided with screw thread；The top of the body of rod is fixedly installed pallet, further include multistage allow pressure structure
Part and high-strength nut, multistage allow pressure component to include inner tube and casing, and inner tube, casing are sequentially sleeved on the body of rod from lower to upper,
Inner tube, which reach out to, is provided at least one layer of external tooth platform, high-strength nut screw in screw thread, pallet, the external tooth platform of top layer, casing,
High-strength nut supports successively.
Preferably, casing is drum type.
The installation that casing possesses elasticity, the strong anticorrosive classification pressure-relieving achor bar of superelevation for improving the utility model can be made in advance should
Power, while can prevent from excessively allowing pressure；Furthermore it is also possible to which casing is made, which also to possess, allows the function of pressure, further improve and pressure is allowed to imitate
Fruit.
Further, the top of inner tube is provided with the inner wall patch of the guide protrusions of circular ring shape, guide protrusions outer wall and casing
It closes.
Casing can be made not rocked in the plane perpendicular to the body of rod, it is ensured that the axle center of casing and the axis of external tooth platform
The heart overlaps, casing is evenly distributed on external tooth platform the resist force of external tooth platform, so as to improve the superelevation of the utility model
The reliability of strong anticorrosive classification pressure-relieving achor bar.
Preferably, screw thread is trapezoidal thread.
It can ensure the self-locking property of high-strength nut, be allowed so as to improve the strong anticorrosive classification of the superelevation of the utility model
Press the reliability of anchor pole.
Further, it is both provided with rigid gasket between pallet and inner tube, between casing and high-strength nut.
Multistage can be made to allow pressure component entirety uniform force, the strong anticorrosive classification of superelevation for improving the utility model allows pressure anchor
The reliability of bar.
Further, drag reduction gasket is provided between high-strength nut and rigid gasket.
The prestressed of the strong anticorrosive classification pressure-relieving achor bar of superelevation of the utility model can be improved, so as to further
Improve the reliability of the strong anticorrosive classification pressure-relieving achor bar of superelevation of the utility model.
As a kind of embodiment, external tooth platform is eight layers.
Preferably, casing 22 is made of No. 20 steel
Compared with prior art, the utility model has the advantages that：
(1) it can realize that multistage allow pressure automatically according to surrouding rock deformation, solve current prop and deform by material property
Limitation the problem of.
(2) tensile strength of the body of rod can reach 1000MPa, improve supporting intensity, can be reduced under identical tensile strength
Shank diameter, further reduces material cost and worker's work is strong, so as to greatly reduce bargh, especially with deep-well
The support cost of the mine in large deformation impact tunnel, it is stagnant in current bargh, business economic can be improved
Benefit alleviates enterprise's pressure.
(3) the anticorrosive cycle greatly improves, and greatly reduces the situation of anchor pole corrosion failure, improves the safety in tunnel
Property, reliability is higher.
Description of the drawings
Fig. 1 is a kind of structure diagram of the strong anticorrosive classification pressure-relieving achor bar of superelevation in the utility model.In Fig. 1, slightly
Solid line represents screw thread 11.
Fig. 2 is the enlarged diagram at the I of Fig. 1.In Fig. 2, heavy solid line arrows expression allow pressure when casing 22 moving direction.
The body of rod 1；Screw thread 11；Pallet 12；Multistage, which allows, presses component 2；Inner tube 21；External tooth platform 211；Guide protrusions 212；Casing
22；High-strength nut 3；Rigid gasket 4；Drag reduction gasket 5.
Specific embodiment
It please refers to Fig.1, Fig. 2, the utility model is a kind of superelevation anticorrosive classification pressure-relieving achor bar by force, including whole in column
The body of rod 1 of shape.The body of rod 1 is that the strong corrosion resistant steel of superelevation (internal number is the steel of TJGK17-01, temporarily undisclosed) is made.The body of rod 1
It is made of the strong corrosion resistant steel of superelevation, yield strength is more than 800MPa, tensile strength is more than 1000MPa, and corrosion resistance is common
1.4~1.7 times of mining screw-thread steel.Correspondingly, under identical tensile strength, the diameter of the body of rod 1 can correspondingly reduce, from
And the material cost and labor strength of the body of rod 1 can be reduced.
The top of the body of rod 1 is provided with screw thread 11；The top fixed setting (usually welding) of the body of rod 1 has pallet 12.In general,
The length of screw thread 11 is 120cm~180cm.
The strong anticorrosive classification pressure-relieving achor bar of the superelevation of the utility model further includes multistage and allows pressure component 2 and high-strength nut 3.
Multistage allows pressure component 2 to include inner tube 21 and casing 22, and inner tube 21, casing 22 are sequentially sleeved in the body of rod 1 from lower to upper
On.
Inner tube 21, which reach out to, is provided at least one layer (as shown in Figure 1, a horizontal circle external tooth platform 211 is outer for one layer
Tooth platform 211) external tooth platform 211.Casing 22 is made of No. 20 steel.
High-strength nut 3 screws in screw thread 11.Preferably, screw thread 11 is trapezoidal thread.It can ensure the self-locking performance of high-strength nut 3
Can, so as to improve the reliability of the strong anticorrosive classification pressure-relieving achor bar of the superelevation of the utility model.
Pallet 12, the external tooth platform 211 of top layer, casing 22, high-strength nut 3 support successively.In general, the internal diameter of casing 22 is small
In the outer diameter of external tooth platform 211.
A kind of operation principle of the strong anticorrosive classification pressure-relieving achor bar of superelevation in the utility model is：In use, by the body of rod 1
Embedment anchor hole simultaneously pours fixation, and pallet 12 is made to be bonded with the top of anchor hole.When surrouding rock deformation, country rock drives the body of rod 1 to use bar
Body 1 moves downward, and the body of rod 1 drives casing 22 to move downward by high-strength nut 3, and casing 22 is made constantly to support the outer of top layer
Tooth platform 211, when casing 22 support external tooth platform 211 resist force be more than top layer external tooth platform 211 intensity threshold when, top layer
211 sleeve 22 of external tooth platform cut (that realizes the first order allows pressure).When the external tooth platform 211 set in inner tube 21 for two layers or
During more than two layers of person, after 211 sleeve 22 of external tooth platform on upper strata is cut, casing 22 is moved down until supporting second top one
The external tooth platform 211 of layer, and so on can realize the pressure that allows more than two-stage or two-stage, you can with automatically according to surrouding rock deformation
Realize that multistage allows pressure.
Preferably, casing 22 is drum type, i.e., the middle part of casing 22 is outwards protruded (Xiang the direction in the axle center away from the body of rod 1).
Casing 22 can be made to possess elasticity, the prestressed for the strong anticorrosive classification pressure-relieving achor bar of superelevation for improving the utility model, together
When can prevent from excessively allowing pressure；Furthermore it is also possible to casing 22 is made, which also to possess, allows the function of pressure, further improve and allow pressure effect.
Certain casing 22 or straight tube shape.
Preferably, the top of inner tube 21 is provided with the guide protrusions 212 of circular ring shape, 212 outer wall of guide protrusions and casing 22
Inner wall fitting.Casing 22 can be made not rocked in the plane perpendicular to the body of rod 1, it is ensured that the axle center of casing 22 with it is outer
The axle center of tooth platform 211 overlaps, casing 22 is evenly distributed on external tooth platform 211 resist force of external tooth platform 211, so as to carry
The reliability of the strong anticorrosive classification pressure-relieving achor bar of the superelevation of high the utility model.
As a kind of more typical embodiment, external tooth platform 211 is eight layers.It can realize eight grades or more of the pressure that allows.
Further, it is both provided with rigid gasket 4 between pallet 12 and inner tube 21, between casing 22 and high-strength nut 3.It can
So that multistage allows the whole uniform force of pressure component 2, improve the utility model the strong anticorrosive classification pressure-relieving achor bar of superelevation it is reliable
Property.
Further, drag reduction gasket 5 is provided between high-strength nut 3 and rigid gasket 4.The utility model can be improved
The prestressed of the strong anticorrosive classification pressure-relieving achor bar of superelevation, it is anticorrosive by force so as to further improve the superelevation of the utility model
It is classified the reliability of pressure-relieving achor bar.
It is to be appreciated that term " " center ", " longitudinal direction ", " transverse direction ", "front", "rear", "left", "right", " vertical ", " water
It is flat ", " top ", " bottom ", " interior ", the orientation of the instructions such as " outer " or position relationship for based on orientation shown in the drawings or position relationship,
Only it is the present invention and simplified description for ease of description rather than indicates or imply signified device or element must have specifically
Orientation is specific azimuth configuration and operation, thus it is not intended that protecting the limitation of content to the present invention.
Above specific embodiment is only the preferred embodiment of this creation, all in this wound not to limit this creation
Any modification, equivalent substitution, improvement and etc. done within the spirit and principle of work, should be included in this creation protection domain it
It is interior.
Claims (8)
1. a kind of superelevation anticorrosive classification pressure-relieving achor bar by force, including the whole cylindrical body of rod (1), the top of the body of rod (1) is set
It is equipped with screw thread (11)；The top of the body of rod (1) is fixedly installed pallet (12),
It is characterized in that：It further includes multistage and allows pressure component (2) and high-strength nut (3), multistage allows pressure component (2) to include inner tube
(21) and casing (22), inner tube (21), casing (22) are sequentially sleeved in from lower to upper on the body of rod (1), and inner tube (21) extends outwardly
Ground is provided at least one layer of external tooth platform (211), and high-strength nut (3) screws in screw thread (11), pallet (12), the external tooth platform of top layer
(211), casing (22), high-strength nut (3) support successively.
2. a kind of superelevation as described in claim 1 anticorrosive classification pressure-relieving achor bar by force, it is characterised in that：Described sleeve pipe (22) is
Drum type.
3. a kind of superelevation as described in claim 1 anticorrosive classification pressure-relieving achor bar by force, it is characterised in that：Said inner tube (21)
Top is provided with the guide protrusions (212) of circular ring shape, and guide protrusions (212) outer wall is bonded with the inner wall of described sleeve pipe (22).
4. a kind of superelevation as described in claim 1 anticorrosive classification pressure-relieving achor bar by force, it is characterised in that：Screw thread (11) is trapezoidal
Screw thread.
5. a kind of superelevation as described in claim 1 anticorrosive classification pressure-relieving achor bar by force, it is characterised in that：The pallet (12) with
Rigid gasket (4) is both provided between said inner tube (21), between described sleeve pipe (22) and the high-strength nut (3).
6. a kind of superelevation as claimed in claim 5 anticorrosive classification pressure-relieving achor bar by force, it is characterised in that：The high-strength nut
(3) drag reduction gasket (5) is provided between the rigid gasket (4).
7. a kind of superelevation as described in claim 1-6 is any anticorrosive classification pressure-relieving achor bar by force, it is characterised in that：The external tooth
Platform (211) is eight layers.
8. a kind of superelevation as claimed in claim 7 anticorrosive classification pressure-relieving achor bar by force, it is characterised in that：Described sleeve pipe (22) is
No. 20 steel are made.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721295281.3U CN207420604U (en) | 2017-09-24 | 2017-09-24 | A kind of superelevation anticorrosive classification pressure-relieving achor bar by force |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721295281.3U CN207420604U (en) | 2017-09-24 | 2017-09-24 | A kind of superelevation anticorrosive classification pressure-relieving achor bar by force |
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| Publication Number | Publication Date |
|---|---|
| CN207420604U true CN207420604U (en) | 2018-05-29 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721295281.3U Expired - Fee Related CN207420604U (en) | 2017-09-24 | 2017-09-24 | A kind of superelevation anticorrosive classification pressure-relieving achor bar by force |
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| Country | Link |
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| CN (1) | CN207420604U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111119964B (en) * | 2019-12-27 | 2021-03-02 | 山西中科赛德能源科技有限公司 | A stock anchor beam supporting construction for coal mine tunnel |
-
2017
- 2017-09-24 CN CN201721295281.3U patent/CN207420604U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111119964B (en) * | 2019-12-27 | 2021-03-02 | 山西中科赛德能源科技有限公司 | A stock anchor beam supporting construction for coal mine tunnel |
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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: 20180529 Termination date: 20190924 |
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| CF01 | Termination of patent right due to non-payment of annual fee |