CN2485424Y - Anchoring bolts with uniform strength joints - Google Patents
Anchoring bolts with uniform strength joints Download PDFInfo
- Publication number
- CN2485424Y CN2485424Y CN 01236992 CN01236992U CN2485424Y CN 2485424 Y CN2485424 Y CN 2485424Y CN 01236992 CN01236992 CN 01236992 CN 01236992 U CN01236992 U CN 01236992U CN 2485424 Y CN2485424 Y CN 2485424Y
- Authority
- CN
- China
- Prior art keywords
- rod
- joint cover
- isostrength
- conical
- anchoring
- 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 - Lifetime
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Abstract
The utility model relates to the mine laneway supporting technique, in particular to an anchoring rod with uniform strength joints, which has rod bodies, and the rod bodies are connected by adopting the cone joint sleeve, which can better realize strengthening(deepening) high intensity anchoring fixing, and can pull the supporting distance, and reduce the number of used anchoring rods with high working efficiency, and the supporting safety is greatly improved.
Description
The utility model relates to the mine timbering technology, is a kind of Isostrength conical-section roof bolt.
The anchor pole that is used for the mine timbering field at present, be overall structure, this whole anchor pole in use can not satisfy following actual conditions: when driving highly is lower than 1.8 meters, add when jumbolter occupies certain altitude that very difficult installation length is the anchor pole more than 1.8 meters; When lengthening (deeply) anchoring, driving coal road height is generally when 2.8 meters left and right sides, and in order to control the top board globality, the anchorage depth that needs to extend is 4-8 rice when above, and whole anchor pole can not use.Those skilled in the art once attempted to adopt common coupling sleeve extension bar body, but intensity is lower, safety is relatively poor, adopt many plying of steel strand to make the anchor cable anchoring that extends, but repeatedly roof fall accident in use occurs, its main cause is, anchoring agent major part in the anchoring of deep is not or not top, anchor cable easily passes the anchoring agent, and the distortion of anchoring long (deeply) degree does not reach the lengthening anchoring effect.
The purpose of this utility model is, a kind of Isostrength conical-section roof bolt is provided, it is had the following advantages: can realize the anchoring of lengthening (deeply) high strength preferably, can better controlled top board integral body not be damaged with deep even layer, improve supporting stability, increase substantially supporting safety etc.
The utility model for the technical scheme of finishing the foregoing invention purpose and providing is, it has the body of rod, and the body of rod adopts awl joint cover to be connected with the body of rod.The body of rod one end is processed into cone body, and awl joint cover is installed on cone body and cone body.On the internal diameter of awl joint cover screw thread is set.The outside journal axle of awl joint cover is to equating, internal diameter is the bipyramid end diameter shape of joining.The outside journal axle of awl joint cover is to equating that the internal diameter of awl joint cover also can be tapered.That is: the internal diameter of awl joint cover is unidirectional taper.The body of rod matches with it.On cone body and the cone body screw thread is set.The external diameter of awl joint cover is Φ 27mm, and body of rod diameter is Φ 22mm.
The utility model is known through a large amount of experiments, it can reach following advantage: can realize the anchoring of lengthening (deeply) high strength preferably, can better controlled top board integral body not be subjected to brokenly ring with deep even layer, improve supporting stability, can draw back the supporting array pitch, reduce and use anchor pole quantity, production efficiency height, and increased substantially the supporting safety.
Description of drawings: accompanying drawing 1 is a structural representation of the present utility model, and the contrast drawings and Examples elaborate to the utility model:
4 is bodies of rod among the figure, the 7th, and the body of rod, the body of rod 4 adopts awl joint cover 1 to be connected with the body of rod 7, and the body of rod 4 one ends are processed into cone body 3, and the body of rod 7 one ends are processed into cone body 6, and awl joint cover 1 is installed on cone body 3 and cone body 6.On the internal diameter of awl joint cover 1 screw thread is set.The outside journal axle of awl joint cover 1 is to equating, internal diameter is the bipyramid end diameter shape of joining.The outside journal axle of awl joint cover 1 is to equating that the internal diameter of awl joint cover 1 is tapered, that is: unidirectional tapered, the body of rod matches with it, on cone body 3 and the cone body 6 screw thread is set.The external diameter of awl joint cover is Φ 27mm, and the diameter of the body of rod is Φ 22mm.The body of rod described in the utility model can be that a joint or more piece constitute, rib 5 on the body of rod can be unidirectional and type in the shape of a spiral, anchor pole bearing strength of the present utility model is distributed on the awl joint cover 1 and the body of rod, on cone body 3 and the cone body 6, awl joint cover 1 external diameter and internal diameter minimum-value aperture sectional area are equal to or greater than body of rod sectional area, that is: make connecting portion bearing strength sectional area be equal to or greater than body of rod sectional area, make its grade strong.
Awl joint cover aperture, 1 two ends is M24 * 1.5 among the utility model embodiment, and center bore 2 is Φ 16mm, and the length of centre bore 2 is 12mm, cone body 3 and cone body 6 length are respectively 40mm, tapering is the 3-6 degree, and the external diameter of awl joint cover 1 is Φ 27mm, and body of rod diameter is Φ 22mm.Present embodiment anchor pole bearing strength 〉=240KN.The described one-way spiral rib 5 of present embodiment can fully stir the anchoring agent, under the turning effort of rib 5, will stir the anchoring agent as far as possible along helical axis to shifting top (deeply) portion onto, guarantee that anchoring section in top (deeply) portion, reaches lengthening (deeply) anchoring purpose.
Claims (7)
1, Isostrength conical-section roof bolt, it has the body of rod (4), the body of rod (7), it is characterized in that: the body of rod (4) adopts awl joint cover (1) to be connected with the body of rod (7).
2, Isostrength conical-section roof bolt according to claim 1 is characterized in that: the body of rod (4) one ends are processed into cone body (3), and the body of rod (7) one ends are processed into cone body (6), go up installation awl joint cover (1) at cone body (3) and cone body (6).
3, Isostrength conical-section roof bolt according to claim 1 is characterized in that: on the internal diameter of awl joint cover (1) screw thread is set.
4, Isostrength conical-section roof bolt according to claim 1 is characterized in that: the outside journal axle of awl joint cover (1) is to equating, internal diameter is the bipyramid end diameter shape of joining.
5, Isostrength conical-section roof bolt according to claim 1 is characterized in that: the outside journal axle of awl joint cover (1) is to equating that the internal diameter of awl joint cover (1) is tapered.
6, Isostrength conical-section roof bolt according to claim 1 is characterized in that: on cone body (3) and the cone body (6) screw thread is set.
7, Isostrength conical-section roof bolt according to claim 1 is characterized in that: the external diameter of awl joint cover 1 is Φ 27mm, and body of rod diameter is Φ 22mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01236992 CN2485424Y (en) | 2001-05-24 | 2001-05-24 | Anchoring bolts with uniform strength joints |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01236992 CN2485424Y (en) | 2001-05-24 | 2001-05-24 | Anchoring bolts with uniform strength joints |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2485424Y true CN2485424Y (en) | 2002-04-10 |
Family
ID=33649864
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 01236992 Expired - Lifetime CN2485424Y (en) | 2001-05-24 | 2001-05-24 | Anchoring bolts with uniform strength joints |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2485424Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100344859C (en) * | 2001-05-24 | 2007-10-24 | 孔祥清 | Isostrength conical-section roof bolt |
-
2001
- 2001-05-24 CN CN 01236992 patent/CN2485424Y/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100344859C (en) * | 2001-05-24 | 2007-10-24 | 孔祥清 | Isostrength conical-section roof bolt |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Effective date of abandoning: 20010524 |
|
| C25 | Abandonment of patent right or utility model to avoid double patenting |