CN205036299U - Roof bolting bit - Google Patents
Roof bolting bit Download PDFInfo
- Publication number
- CN205036299U CN205036299U CN201520689178.1U CN201520689178U CN205036299U CN 205036299 U CN205036299 U CN 205036299U CN 201520689178 U CN201520689178 U CN 201520689178U CN 205036299 U CN205036299 U CN 205036299U
- Authority
- CN
- China
- Prior art keywords
- drill
- bit
- chip area
- chip
- base portion
- 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
Links
Abstract
The utility model provides a roof bolting bit, includes integrated into one piece's drillstock portion and drill bit base portion, drill bit base portion sets up on the upper portion of drillstock portion, drill bit base portion include that at least two are the wing body that the spiral arranged around the axle center, install the drill lip blade in the upper end of the wing body, the position of being connected with drillstock portion in the lower part of the wing body is equipped with the chip removal slot part, the chip removal slot part is including being curved chip groove A and chip groove B, and chip groove A is from the wing lower part spiral downwardly extending physically of drill lip blade front end, and chip groove B is from chip groove A's afterbody spiral downwardly extending, the inside logical water course that has a perfect understanding drillstock portion, chip removal slot part and drill bit base portion center that is equipped with of roof bolting bit, be equipped with connecting thread in the logical water course. The utility model discloses a roof bolting bit's chip groove B and chip groove A are the spiral cambered surface, and chip groove B connects chip removal groove A, this design when guaranteeing roof bolting bit chip removal effect, the influence of little reduction because of setting up the chip groove and reducing the roof bolting bit bulk strength of trying one's best.
Description
Technical field
The utility model belongs to engineering, bit technique field, mine, particularly relates to a kind of anchor bit.
Background technology
Anchor bit plays vital effect in the tunneling process in the field such as engineering, mine, and the quality of bit performance directly affects drilling efficiency and boring cost.Existing anchor bit is substantially all be connected with drilling rod by a sleeve pipe, and its connection procedure bothers, and waste time and energy, bonding strength is not high yet, in addition existing anchor bit, and chip removal ability is poor, often due to stone flour accumulation damage instrument, can delay construction speed.Existing publication number is the technical scheme that the Chinese patent of 202645431U discloses that a kind of design combined with arc-shaped ring groove by chip area improves the chip removal ability of anchor bit, but this kind of design reduces the intensity of anchor bit.
Utility model content
The purpose of this utility model is to solve the problems of the technologies described above, and provides a kind of anchor bit.
The technical solution of the utility model is:
A kind of anchor bit, it is characterized in that: comprise integrated drill shank and drill bit base portion, drill bit base portion is arranged on the top of drill shank, and described drill bit base portion comprises at least two wing bodies helically arranged around axle center, is provided with drill lip blade in the upper end of wing body; The position be connected with drill shank in the bottom of wing body is provided with chip area portion, described chip area portion comprises the chip area A and chip area B that are arc, chip area A is from the lower part helical of the wing body of drill lip blade front end to downward-extension, and chip area B is from the afterbody screw downward-extension of chip area A; Described anchor bit inside is provided with the waterway at through drill shank, chip area portion and drill bit base portion center, is provided with connecting thread in described waterway.
Preferably, the opening of waterway between wing body is square orifice or circular port.
Preferably, the external surface of described wing body is the face of cylinder, and the external surface of institute's finned body is positioned on the same face of cylinder.
Preferably, the outside diameter of described drill shank is less than the outside diameter on the face of cylinder, wing external surface place, and the difference of two outside diameters is more than or equal to 4mm.
The beneficial effects of the utility model are:
Chip area B and the chip area A of the anchor bit of this utility model are spiral cambered surface, and chip area B connects chip area A, this design is while guarantee anchor bit chip removal effect, and little minimizing reduces the impact of anchor bit bulk strength because arranging chip area as far as possible.
Accompanying drawing explanation
Fig. 1 is the front view of the structural representation of the utility model anchor bit;
Fig. 2 is the left view of the structural representation of the utility model anchor bit;
The top view of Fig. 3 to be waterway be Fig. 1 of square opening;
The top view of Fig. 4 to be waterway be Fig. 1 of circular port;
1. drill shanks, 2. chip area portion, 3. drill bit base portion, 4. drill lip blade, the 5. flat hole of wing body, 6. rectangle, 7. waterway, 8. chip area A, 9. connecting thread, 10. chip area B in figure.
Detailed description of the invention
Specific embodiment of the utility model as Figure 1-4, a kind of anchor bit, comprise integrated drill shank and drill bit base portion, drill bit base portion is arranged on the top of drill shank, described drill bit base portion comprises at least two wing bodies helically arranged around axle center, is provided with drill lip blade in the upper end of wing body; The position be connected with drill shank in the bottom of wing body is provided with chip area portion, described chip area portion comprises the chip area A and chip area B that are arc, chip area A is from the lower part helical of the wing body of drill lip blade front end to downward-extension, and chip area B is from the afterbody screw downward-extension of chip area A; Described anchor bit inside is provided with the waterway at through drill shank, chip area portion and drill bit base portion center, is provided with connecting thread in described waterway.
Drill shank and the drill bit base portion of anchor bit are one-body molded, and intensity is high, easy for installation; Chip area B and chip area A is spiral cambered surface, and chip area B connects chip area A, and this design is while guarantee anchor bit chip removal effect, and as far as possible little minimizing reduces the impact of anchor bit bulk strength because arranging chip area; The opening of waterway between wing body is square orifice, water outlet great efforts, and impulse force is strong, is beneficial to chip removal, reduces fault rate; The outside diameter of drill shank is less than the outside diameter on the face of cylinder, wing external surface place, and the difference of two outside diameters is more than or equal to 4mm, can ensure chip space, be beneficial to chip removal.
Claims (4)
1. an anchor bit, it is characterized in that: comprise integrated drill shank and drill bit base portion, drill bit base portion is arranged on the top of drill shank, and described drill bit base portion comprises at least two wing bodies helically arranged around axle center, is provided with drill lip blade in the upper end of wing body; The position be connected with drill shank in the bottom of wing body is provided with chip area portion, described chip area portion comprises the chip area A and chip area B that are arc, chip area A is from the lower part helical of the wing body of drill lip blade front end to downward-extension, and chip area B is from the afterbody screw downward-extension of chip area A; Described anchor bit inside is provided with the waterway at through drill shank, chip area portion and drill bit base portion center, is provided with connecting thread in described waterway.
2. anchor bit according to claim 1, is characterized in that: the opening of waterway between wing body is square orifice or circular port.
3. anchor bit according to claim 1, is characterized in that: the external surface of described wing body is the face of cylinder, and the external surface of institute's finned body is positioned on the same face of cylinder.
4. anchor bit according to claim 3, is characterized in that: the outside diameter of described drill shank is less than the outside diameter on the face of cylinder, wing external surface place, and the difference of two outside diameters is more than or equal to 4mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520689178.1U CN205036299U (en) | 2015-09-08 | 2015-09-08 | Roof bolting bit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520689178.1U CN205036299U (en) | 2015-09-08 | 2015-09-08 | Roof bolting bit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205036299U true CN205036299U (en) | 2016-02-17 |
Family
ID=55295208
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520689178.1U Expired - Fee Related CN205036299U (en) | 2015-09-08 | 2015-09-08 | Roof bolting bit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205036299U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110242218A (en) * | 2019-05-11 | 2019-09-17 | 邹城兖矿泰德工贸有限公司 | Alloy anchor bit |
-
2015
- 2015-09-08 CN CN201520689178.1U patent/CN205036299U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110242218A (en) * | 2019-05-11 | 2019-09-17 | 邹城兖矿泰德工贸有限公司 | Alloy anchor bit |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160217 Termination date: 20170908 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |