CN2176432Y - String-assembling and shell-expanding roofbolt - Google Patents
String-assembling and shell-expanding roofbolt Download PDFInfo
- Publication number
- CN2176432Y CN2176432Y CN 93229694 CN93229694U CN2176432Y CN 2176432 Y CN2176432 Y CN 2176432Y CN 93229694 CN93229694 CN 93229694 CN 93229694 U CN93229694 U CN 93229694U CN 2176432 Y CN2176432 Y CN 2176432Y
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- CN
- China
- Prior art keywords
- shell
- rope body
- rod
- rope
- string
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- 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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- Devices Affording Protection Of Roads Or Walls For Sound Insulation (AREA)
Abstract
The utility model belongs to the technique of tunnel support of coal mines, and particularly relates to a string-assembling type and shell-expanding anchor bolt used for tunnel support. The utility model solves the technical problem that the connection and the reuse of ends of steel strings which are anchor bolt bodies. A string conical body (10) tensions the shell-expanding (9), and a wedge conical body (8) connecting with a string body (6) of the lower end of the shell-expanding (7) passes through the tensioned shell-expanding (7). A string bolt body is buckled and pressed with the lower end of the string body (6) penetrating in the inner hole of a blot body (5), the lower end of the blot body sheathed with screw thread and an exterior joint (11) become integrated, and are locked and anchored with screw nuts (1) through supporting boards (3), (4). The utility model has advantages of simple structure, convenient operation, reusable function, and strong anchoring force.
Description
The utility model belongs to the colliery tunnel support technology, particularly a kind of bloated shell anchor pole of rope body formula combination that is used for roadway support.
Adopt pipe seam anchor bar, reinforced anchor bolt and cement grouted bolt at colliery tunnel support at present, pipe seam anchor bar is in the anchor head anchoring more, and the intrinsic conehead petrosal foramen degree of depth needs to deepen, increase cost, mixing system cement during the use of cement grouted bolt needs the time health, can not produce anchored force immediately, and reinforced anchor bolt needs drift, tapered sleeve is used with the shell that expands, clamping trouble is located inaccurately, influences anchored force, and it is multiplexing that the body of rod is that monolithic can not reclaim, and increases support cost.
The purpose of this utility model is to overcome the technical deficiency of split assembling, and provides a kind of rope body formula combination bloated shell anchor pole.
Task of the present utility model is achieved in that the bloated shell anchor pole of body formula combination of restricting, and is the two bloated shell anchor head anchoring rod of bicone in proper order in the same way in the upper end of rope body, by the expansion and the country rock hole wall generation frictional resistance of cone and bloated shell, realizes anchor rod anchored supporting.Fixing upper and lower bloated shell is end to end, the rope cone is formed by rope body and cone in upper end at the rope body, shell expands in the swelling, the wedge cone connects bloated shell under the shell lower end swelling of expanding, rope body lower end penetrates body of rod endoporus and withholds into the rope body of rod, body of rod lower end is with screw thread, be combined into one with socket, by supporting plate by the nut check anchoring.
The bloated shell anchor pole of the utility model rope body formula combination, have simple in structure, characteristics easy to use, that anchored force is big, rope body and cone are cast the rope cone, and the rope body and the body of rod are withheld to be integral and formed the rope body of rod, have solved wire rope as the binding of the wire rope termination of anchor bar body and multiplexing technical problem, assembling is convenient in the termination socket under the body of rod, reusable, utilize the waste steel wire rope, reduce support cost.
Specifically describe with by way of example below in conjunction with accompanying drawing.
Fig. 1 shows the bloated shell anchor structure sectional drawing of rope body formula combination.
Fig. 2 shows the bloated shell anchor pole rope body of rod section of structure of rope body formula combination.
Fig. 3 shows rope body of rod A-A sectional drawing.
Fig. 4 shows rope body of rod B-B sectional drawing.
1-nut among the figure; The 2-packing ring; 3,4 supporting plates; The 5-body of rod; The 6-body of restricting; The 7-shell that expands; 8-wedge cone; The 9-shell that expands; The 10-cone of restricting; The 11-socket
Fig. 1 shows the bloated shell anchor structure sectional drawing of rope body formula combination, the bloated shell anchor pole of rope body formula combination, in rope body (6) upper end in the same way on the fixed order, following bloated shell (9), (7) end to end, rope body (6) upper end rope body and cone are formed rope cone (10), shell (9) expands in the swelling, wedge cone (8) connects bloated shell (7) lower end and passes the bloated shell (7) of swelling from rope body (6), rope body (6) lower end penetrates the body of rod (5) endoporus and withholds into the rope body of rod, the body of rod (5) lower end is with screw thread, same socket (11) is combined into one, by circular supporting plate (3), (4), by nut (1) locking anchoring.
Fig. 2 shows the bloated shell anchor pole rope body of rod section of structure of rope body formula combination, the rope body of rod is a combined type, be divided into anchored end rope cone (10), the body of rod (5) two parts, be rope body and cone composition rope cone in rope body (6) upper end, rope body (6) lower end penetrates the body of rod (5) endoporus and withholds into the rope body of rod, lower end at the body of rod is with screw thread, the rope body (6) and the body of rod (5) are inseparable, rope body (6) upper end is combined as casting processing with cone, rope body (6) lower end penetrates in the body of rod (5) hole, withhold into the rope body of rod through forcing press, make the rope body, cone, the body of rod Trinity.
Fig. 3 shows the sectional drawing of rope body (6) and cone combination, and core is rope body (6), and excircle part is a cone.
Fig. 4 shows that it is the rope body of rod that the rope body (6) and the body of rod (5) are withheld, and core is the body (6) of restricting, and the section hexahedron is withheld into the rope body of rod.
Before using the bloated shell anchor pole muck hole of rope body formula combination, at first remove foreign material such as the interior dust of petrosal foramen, the shell (9) that expands in the cone of will restricting then (10) swelling pushes at the bottom of the petrosal foramen, use Special ground tackle to make bloated shell (9) and the swelling of petrosal foramen wall, after pack into wedge cone (8) and bloated shell (7) down, use special tool to make bloated shell (7) and the swelling of petrosal foramen wall, pack into then annular backing plate (3), (4), increase lifting surface area, locking nut (1) compresses supporting plate, reaches the anchoring requirement.Also can in petrosal foramen, inject the spray of cement mortar anchor, increase the anchoring support ability according to the different requirements of roadway support.
The bloated shell anchor pole technical performance of rope body formula combination
Practical anchored force 〉=48KN
Maximum anchored force 〉=55-60KN
Rope body of rod Fracture Force 〉=62-86KN
Displacement＜25mm
The combination of rope body formula is expanded the shell anchor pole applicable to the various lithology except that loose rock, mud stone, and bore diameter is φ 3.8-42mm, the yield supporting of ambient humidity 0-50 ℃ various rock gangways.
Claims (4)
1, a kind of rope body formula in rope body (6) upward fixing expand shell (9), (7) makes up the shell anchor pole that expands, it is characterized in that restricting, the upper and lower bloated shell of fixed order (9), (7) are end to end in the same way for body (6) upper end, rope body (6) lower end penetrates the body of rod (5) endoporus and withholds into the rope body of rod, the lower end is with screw thread and connects socket (11), by supporting plate (3), (4), by the nut check anchoring.
2, the bloated shell anchor pole of rope body formula combination according to claim 1, rope cone (10) the swelling bloated shell (9) of body (6) upper end for rope body and cone composition is characterized in that restricting, wedge cone (8) connects bloated shell (7) lower end and passes the bloated shell (7) of swelling from rope body (6), rope body (6) lower end will penetrate the body of rod (5) endoporus and withhold into the rope body of rod, and the body of rod (5) lower end is with screw thread and connects socket (11).
3, the bloated shell anchor pole of rope body formula combined type according to claim 1 is characterized in that supporting plate (3), (4) are for circular.
4, the bloated shell anchor pole of rope body formula combination according to claim 1 is characterized in that the body of rod (5) and socket (11) are separable.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 93229694 CN2176432Y (en) | 1993-11-15 | 1993-11-15 | String-assembling and shell-expanding roofbolt |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 93229694 CN2176432Y (en) | 1993-11-15 | 1993-11-15 | String-assembling and shell-expanding roofbolt |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2176432Y true CN2176432Y (en) | 1994-09-07 |
Family
ID=33806513
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 93229694 Expired - Fee Related CN2176432Y (en) | 1993-11-15 | 1993-11-15 | String-assembling and shell-expanding roofbolt |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2176432Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102536281A (en) * | 2012-02-10 | 2012-07-04 | 张志勇 | High tensile strength scraper reverse hanging device as well as assembling and processing method thereof |
| CN104944252A (en) * | 2015-06-29 | 2015-09-30 | 苏州莱茵电梯制造有限公司 | Device for combining rope head of elevator car pulling rope |
-
1993
- 1993-11-15 CN CN 93229694 patent/CN2176432Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102536281A (en) * | 2012-02-10 | 2012-07-04 | 张志勇 | High tensile strength scraper reverse hanging device as well as assembling and processing method thereof |
| CN104944252A (en) * | 2015-06-29 | 2015-09-30 | 苏州莱茵电梯制造有限公司 | Device for combining rope head of elevator car pulling rope |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |