CN211202026U - Constant-resistance anchor rod for coal mine - Google Patents
Constant-resistance anchor rod for coal mine Download PDFInfo
- Publication number
- CN211202026U CN211202026U CN201921846346.8U CN201921846346U CN211202026U CN 211202026 U CN211202026 U CN 211202026U CN 201921846346 U CN201921846346 U CN 201921846346U CN 211202026 U CN211202026 U CN 211202026U
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- Prior art keywords
- constant
- sleeve
- anchor rod
- resistance
- rod body
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Abstract
The utility model discloses a constant-resistance anchor rod for coal mine, including anchor rod body, protection component, spacing component, constant-resistance sleeve, adapter sleeve and conical head, the one end outside of anchor rod body is provided with the protection component, the other end outside of anchor rod body is provided with spacing component, the outside of spacing component is provided with the constant-resistance sleeve, the adapter sleeve is installed in the one end connection of constant-resistance sleeve, a side end face outside of adapter sleeve is provided with the conical head, and the other end of anchor rod body passes spacing component, constant-resistance sleeve, adapter sleeve and conical head and passes through welded fastening connection; the constant-resistance anchor rod for the coal mine has a firm fixing effect, is stable in structure and is not easy to fall off; during the use, the pulling force that the stock body received is invariable, not only can adapt to the country rock deformation, also can improve the security performance moreover, has reduced the spoilage to the cost is effectively reduced.
Description
Technical Field
The utility model relates to a constant resistance technical field specifically is a constant resistance stock for coal mine.
Background
The anchor rod is the most basic component of roadway support in the contemporary coal mine, the anchor rod can reinforce the surrounding rocks of the roadway together, so that the surrounding rocks support themselves; the prior anchor rod is not only used in mines, but also used in engineering technology to carry out main body reinforcement on side slopes, tunnels and dam bodies; when the surrounding rock of the anchor rod is severely deformed, the anchor rod is very easy to be deformed by the pull rope until being broken, so that the damage rate of the anchor rod is extremely high, potential safety hazards are brought, and resource loss is greatly caused.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a constant resistance anchor rod for coal mine, which has firm fixing effect, stable structure and difficult falling off; during the use, the pulling force that the stock body received is invariable, not only can adapt to the country rock deformation, also can improve the security performance moreover, has reduced the spoilage to the cost is effectively reduced.
The purpose of the utility model can be realized by the following technical scheme:
a constant-resistance anchor rod for a coal mine comprises an anchor rod body, a protection component, a limiting component, a constant-resistance sleeve, a connecting sleeve and a conical head, wherein the protection component is arranged on the outer side of one end of the anchor rod body;
spacing subassembly includes stop collar, spacing hole, adapter sleeve, the tight screw in top and the tight screw rod in top, the other end outside at the stock body is installed in the stop collar plug-in connection, the one end outside of stop collar has the adapter sleeve through welded fastening installation, and the other end of stock body is pegged graft and is installed in the inside of adapter sleeve, the tight screw in top has evenly been seted up all around in the outside of adapter sleeve, the tight screw rod in top is installed through threaded connection in the inside of the tight screw in top, the tight screw in top is passed to the one end of the tight screw in top and is located the inboard stock body fastening connection of adapter sleeve.
As a further aspect of the present invention: the protection component comprises a protection base plate, a grout stopping plug and a fastening nut, the grout stopping plug is installed on the outer side of one end of the anchor rod body in an inserting mode, the protection base plate is arranged on the outer side of the grout stopping plug, the fastening nut is arranged on the outer side of the protection base plate, and one end of the anchor rod body penetrates through the grout stopping plug, the protection base plate and the fastening nut to be connected through threads.
As a further aspect of the present invention: the limiting hole is formed in the limiting sleeve, the inner side of the limiting hole is provided with an inner thread groove, one end of the constant-resistance sleeve is provided with an outer thread groove, and one end of the constant-resistance sleeve is fixedly installed with the limiting hole through thread hinging.
As a further aspect of the present invention: the included angle between the tightly-jacking screw holes is 90 degrees.
As a further aspect of the present invention: the constant-resistance sleeve is sleeved on the outer side of the anchor rod body and is of a sleeve-shaped structure expanded under pressure.
As a further aspect of the present invention: the inner side of the connecting sleeve is provided with an inner thread groove, the other ends of the conical head and the constant-resistance sleeve are provided with outer thread grooves, and the conical head and the constant-resistance sleeve are fixedly connected with the connecting sleeve through thread hinge.
The utility model has the advantages that: when the constant-resistance anchor rod for the coal mine is installed, one end of the anchor rod body can be fixed through the protection assembly, the fixing effect is firm, the structure is stable, and the anchor rod is not easy to fall off; moreover, the grout stopping protection effect can be effectively improved through the protection component; meanwhile, when the anchor rod is used, the tension force applied to the anchor rod body is constant, the anchor rod body can adapt to surrounding rock deformation, the safety performance can be improved, the damage rate is reduced, and therefore the cost is effectively reduced.
Drawings
In order to facilitate understanding for those skilled in the art, the present invention will be further described with reference to the accompanying drawings.
FIG. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is an overall sectional view of the present invention;
fig. 3 is a cross-sectional view of the limiting assembly of the present invention;
in the figure: 1. an anchor body; 2. a guard assembly; 3. a limiting component; 4. a constant resistance sleeve; 5. connecting sleeves; 6. a conical head; 21. a protective backing plate; 22. a grout stopping plug; 23. fastening a nut; 31. a limiting sleeve; 32. a limiting hole; 33. fastening sleeves; 34. tightly propping against the screw hole; 35. and tightly pushing the screw rod.
Detailed Description
The technical solution of the present invention will be described clearly and completely with reference to the following embodiments, and it should be understood that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by a person of ordinary skill in the art without creative efforts belong to the protection scope of the present invention.
As shown in fig. 1-3, a constant-resistance anchor rod for coal mines comprises an anchor rod body 1, a protective component 2, a limiting component 3, a constant-resistance sleeve 4, a connecting sleeve 5 and a conical head 6, wherein the protective component 2 is arranged on the outer side of one end of the anchor rod body 1, the protective component 2 comprises a protective backing plate 21, a grout stop plug 22 and a fastening nut 23, the grout stop plug 22 is inserted and installed on the outer side of one end of the anchor rod body 1, the protective backing plate 21 is arranged on the outer side of the grout stop plug 22, the fastening nut 23 is arranged on the outer side of the protective backing plate 21, one end of the anchor rod body 1 penetrates through the grout stop plug 22, the protective backing plate 21 and the fastening nut 23 to be; the outer side of the other end of the anchor rod body 1 is provided with a limiting component 3, the outer side of the limiting component 3 is provided with a constant-resistance sleeve 4, the limiting component 3 comprises a limiting sleeve 31, a limiting hole 32, a fastening sleeve 33, a jacking screw hole 34 and a jacking screw 35, the limiting sleeve 31 is installed on the outer side of the other end of the anchor rod body 1 in an inserting mode, the limiting hole 32 is formed in the limiting sleeve 31, an inner thread groove is formed in the inner side of the limiting hole 32, an outer thread groove is formed in one end of the constant-resistance sleeve 4, one end of the constant-resistance sleeve 4 is fixedly installed with the limiting hole 32 through thread hinging, and therefore one end of the constant-resistance sleeve 4 is conveniently and fixedly installed in the limiting; a fastening sleeve 33 is fixedly installed on the outer side of one end of the limiting sleeve 31 through welding, the other end of the anchor rod body 1 is installed inside the fastening sleeve 33 in an inserted mode, jacking screw holes 34 are evenly formed in the periphery of the outer side of the fastening sleeve 33, the included angle between the jacking screw holes 34 is 90 degrees, and the connecting tightness of the anchor rod body 1 is improved; a jacking screw 35 is installed inside the jacking screw hole 34 in a threaded connection mode, and one end of the jacking screw 35 penetrates through the jacking screw hole 34 to be fixedly connected with the anchor rod body 1 located on the inner side of the fastening sleeve 33; the constant-resistance sleeve 4 is sleeved outside the anchor rod body 1, and the constant-resistance sleeve 4 is of a sleeve-shaped structure expanded under pressure, so that the buffering effect is improved; one end of the constant-resistance sleeve 4 is connected with a connecting sleeve 5, the outer side of the end surface of one side of the connecting sleeve 5 is provided with a conical head 6, and the other end of the anchor rod body 1 penetrates through the limiting component 3, the constant-resistance sleeve 4, the connecting sleeve 5 and the conical head 6 to be fixedly connected through welding; the inner side of the connecting sleeve 5 is provided with an inner thread groove, the other ends of the conical head 6 and the constant-resistance sleeve 4 are provided with outer thread grooves, and the conical head 6 and the constant-resistance sleeve 4 are fixedly connected with the connecting sleeve 5 through thread hinge, so that the conical head 6 and the constant-resistance sleeve 4 are fixedly connected with the connecting sleeve 5.
The utility model discloses a theory of operation: during installation, after the cone head 6 is fixedly connected with the end of the anchor rod body 1, the connecting sleeve 5 is sleeved and installed on the outer side of the anchor rod body 1, the connecting sleeve 5 is rotated, the cone head 6 is fixedly connected with the threads of the connecting sleeve 5, the constant resistance sleeve 4 is sleeved and installed on the outer side of the anchor rod body 1, the constant group sleeve is rotated, one end of the constant group sleeve is fixedly connected with the connecting sleeve 5 through threads, the limiting component 3 is installed, the limiting sleeve 31 is sleeved and installed on the outer side of the anchor rod body 1, one end of the constant group sleeve is inserted into the limiting hole 32, the limiting sleeve 31 is rotated, one end of the constant group sleeve is fixedly connected with the limiting hole 32 through threads, the tightening screw 35 on the outer side of the fastening sleeve 33 is screwed, one end of the tightening screw 35 penetrates through the tightening screw 34 to fix the anchor rod body 1, after fixation is completed, the protective component 2 is installed on the anchor rod body 1, the grout stop plug 22 and the fastening nut 23 are inserted and installed on the outer side of the anchor rod body 1, the grout stop plug 22 and the fastening nut 23 are rotated to fix the position of the protective backing plate 21 by the grout stop plug 22 and the fastening nut 23, after the installation is finished, the anchor rod is installed at a proper use position, when surrounding rock is deformed, the anchor rod body 1 receives a stretching effect, because the anchor rod body 1 is firmly fixed by the limiting component 3, when the stretching force reaches a certain degree, the constant-resistance sleeve 4 is extruded by the conical head 6, the constant-resistance sleeve 4 can be supported by the limiting component 3, so that the constant-resistance sleeve 4 is expanded and deformed, the pulling force on the anchor rod body 1 is converted into the elastic potential energy of the constant-resistance sleeve 4, the constant-resistance sleeve 4 is ensured to be deformed, the anchor rod body 1 can adapt to the deformation of the surrounding rock, the safety performance is improved, and the loss of the anchor rod body 1 is reduced, thereby also reducing the cost; the protection component 2 can effectively improve the grout stopping protection effect.
The preferred embodiments of the present invention disclosed above are intended only to help illustrate the present invention. The preferred embodiments are not intended to be exhaustive or to limit the invention to the precise embodiments disclosed. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the invention and its practical applications, to thereby enable others skilled in the art to best understand the invention for and utilize the invention. The present invention is limited only by the claims and their full scope and equivalents.
Claims (6)
1. The constant-resistance anchor rod for the coal mine is characterized by comprising an anchor rod body (1), a protection component (2), a limiting component (3), a constant-resistance sleeve (4), a connecting sleeve (5) and a conical head (6), wherein the protection component (2) is arranged on the outer side of one end of the anchor rod body (1), the limiting component (3) is arranged on the outer side of the other end of the anchor rod body (1), the constant-resistance sleeve (4) is arranged on the outer side of the limiting component (3), the connecting sleeve (5) is connected and installed at one end of the constant-resistance sleeve (4), the conical head (6) is arranged on the outer side of one side end face of the connecting sleeve (5), and the other end of the anchor rod body (1) penetrates through the limiting component (3), the constant-resistance sleeve (4), the connecting sleeve (5) and the;
spacing subassembly (3) include stop collar (31), spacing hole (32), adapter sleeve (33), the tight screw hole in top (34) and push up tight screw rod (35), the other end outside at stock body (1) is installed in the grafting of stop collar (31), there is adapter sleeve (33) in the one end outside of stop collar (31) through welded fastening, and the other end of stock body (1) is pegged graft and is installed in the inside of adapter sleeve (33), the tight screw hole in top (34) has evenly been seted up all around in the outside of adapter sleeve (33), the tight screw rod in top (35) is installed through threaded connection in the inside of the tight screw hole in top (34), the one end of the tight screw rod in top (35) is passed and is pushed up tight screw hole (34) and be located the inboard stock body (1) fastening connection of adapter sleeve (33).
2. The coal mine constant-resistance anchor rod according to claim 1, wherein the protection assembly (2) comprises a protection backing plate (21), a grout stop plug (22) and a fastening nut (23), the grout stop plug (22) is installed on the outer side of one end of the anchor rod body (1) in an inserting mode, the protection backing plate (21) is arranged on the outer side of the grout stop plug (22), the fastening nut (23) is arranged on the outer side of the protection backing plate (21), and one end of the anchor rod body (1) penetrates through the grout stop plug (22), the protection backing plate (21) and the fastening nut (23) to be connected through threads.
3. The constant-resistance anchor rod for the coal mine according to claim 1, wherein a limiting hole (32) is formed in the limiting sleeve (31), an inner thread groove is formed in the inner side of the limiting hole (32), an outer thread groove is formed in one end of the constant-resistance sleeve (4), and one end of the constant-resistance sleeve (4) is fixedly installed with the limiting hole (32) through thread hinge.
4. The constant-resistance anchor rod for coal mines according to claim 1, wherein the angle between the tightening screw holes (34) is 90 °.
5. The coal mine constant-resistance anchor rod according to claim 1, wherein the constant-resistance sleeve (4) is sleeved outside the anchor rod body (1), and the constant-resistance sleeve (4) is of a sleeve-shaped structure expanded under pressure.
6. The coal mine constant-resistance anchor rod according to claim 1, wherein an inner thread groove is formed in the inner side of the connecting sleeve (5), an outer thread groove is formed in the other end of the conical head (6) and the constant-resistance sleeve (4), and the conical head (6) and the constant-resistance sleeve (4) are fixedly connected with the connecting sleeve (5) through thread hinge.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921846346.8U CN211202026U (en) | 2019-10-30 | 2019-10-30 | Constant-resistance anchor rod for coal mine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921846346.8U CN211202026U (en) | 2019-10-30 | 2019-10-30 | Constant-resistance anchor rod for coal mine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211202026U true CN211202026U (en) | 2020-08-07 |
Family
ID=71856955
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921846346.8U Expired - Fee Related CN211202026U (en) | 2019-10-30 | 2019-10-30 | Constant-resistance anchor rod for coal mine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211202026U (en) |
-
2019
- 2019-10-30 CN CN201921846346.8U patent/CN211202026U/en not_active Expired - Fee Related
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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: 20200807 Termination date: 20211030 |