CN214273521U - Hard drill bit of rock drilling machine - Google Patents
Hard drill bit of rock drilling machine Download PDFInfo
- Publication number
- CN214273521U CN214273521U CN202120306689.6U CN202120306689U CN214273521U CN 214273521 U CN214273521 U CN 214273521U CN 202120306689 U CN202120306689 U CN 202120306689U CN 214273521 U CN214273521 U CN 214273521U
- Authority
- CN
- China
- Prior art keywords
- drill
- drill bit
- drilling rod
- rock
- rod
- 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.)
- Active
Links
Images
Landscapes
- Earth Drilling (AREA)
Abstract
The utility model discloses a rock drill stereoplasm drill bit, including the drilling rod, the drilling rod bottom is provided with the drill bit, on the drill bit and with the drilling rod linkage segment on be provided with spiral escape canal, the drilling rod surface is provided with semi-circular groove and arc wall, the crisscross setting of semi-circular groove and arc wall, the drilling rod top is provided with the erection segment, and the drilling rod is close to the top erection segment and is provided with the hoop, the cross section of erection segment is regular hexagon. The utility model discloses easy dismounting, firm in connection, the ability reinforce of transmission moment of torsion, shock resistance is big, and it is convenient to drill.
Description
Technical Field
The utility model relates to a rock drilling machine, in particular to rock drilling machine stereoplasm drill bit.
Background
A rock drilling machine is an engineering mechanical device used in rock mining, and the rock drilling machine has the working purpose that a hole with a certain diameter is drilled in rock, so that explosive can be filled in the hole to explode and decompose the rock. The former drill bit is connected with a rock drilling machine by threads, so that the assembly and disassembly are troublesome, the transmission torque is small, the connection is not firm, and the impact resistance is poor.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a easy dismounting, firm in connection, the better rock drill stereoplasm drill bit of shock resistance.
In order to achieve the above purpose, the utility model adopts the technical scheme that: the utility model discloses a rock drill stereoplasm drill bit, including the drilling rod, the drilling rod bottom is provided with the drill bit, on the drill bit and with the drilling rod linkage segment on be provided with spiral escape canal, the drilling rod surface is provided with semi-circular groove and arc wall, the crisscross setting of semi-circular groove and arc wall, the drilling rod top is provided with the installation section, and the drilling rod is close to the top installation section and is provided with the circle hoop, the cross section of installation section is regular hexagon.
Preferably, the semicircular grooves and the arc-shaped grooves are three and respectively correspond to the drainage grooves.
Preferably, the circular hoop surface is provided with an external thread.
Preferably, the drill rod and the drill bit surface are both provided with a wear resistant layer.
Compared with the prior art, the utility model has the advantages of: the utility model discloses easy dismounting, firm in connection, the ability reinforce of transmission moment of torsion, shock resistance is big, and it is convenient to drill.
Drawings
Fig. 1 is a schematic structural view of the present invention;
fig. 2 is a cross-sectional view taken at a-a in fig. 1.
Detailed Description
The present invention will be further explained with reference to the accompanying drawings.
Referring to fig. 1 and 2, the utility model discloses a rock drill stereoplasm drill bit, including drilling rod 1, 1 bottom of drilling rod is provided with the drill bit, be provided with spiral escape way 2 on the drilling bit and on 1 linkage segment with drilling rod, 1 surface of drilling rod is provided with semi-circular groove 5 and arc wall 6, and semi-circular groove 5 and the crisscross setting of arc wall 6, and 1 top of drilling rod is provided with erection section 3, and drilling rod 1 is close to top erection section 3 and is provided with circular hoop 4, the cross section of erection section 3 is regular hexagon, semi-circular groove 5 and arc wall 6 are three, and semi-circular groove 5 and arc wall 6 correspond the escape way 2 setting respectively, circular hoop 4 surface is provided with the external screw thread, drilling rod 1 and drill bit surface all are provided with the wearing layer, and the wearing layer is the galvanizing coat.
When the drill bit works, the spiral drainage grooves 2 on the drill bit and the drill rod 1 can conveniently discharge rock debris, reduce the abrasion of the drill bit by rocks, prolong the service life of the drill bit and facilitate drilling; the semicircular groove 5 and the arc-shaped groove 6 are arranged, so that when the drilling machine tunnels, the semicircular groove 5 and the arc-shaped groove 6 can continuously and orderly discharge the ballast outwards along with the rotation of the drill rod 1, and the phenomenon of drill jamming caused by the ballast blocking around the drill rod 1 is avoided; the regular hexagon mounting section 3 and the round hoop 4 with external threads are arranged, so that the mounting and dismounting are convenient, the connection is firm, and the falling is not easy; the wear-resistant layer made of the zinc coating greatly improves the wear-resistant degree of the drill bit.
The utility model discloses easy dismounting, firm in connection, the ability reinforce of transmission moment of torsion, shock resistance is big, and it is convenient to drill.
Claims (4)
1. The utility model provides a rock drill stereoplasm drill bit, includes the drilling rod, and the drilling rod bottom is provided with drill bit, its characterized in that: the drill bit and the drill rod connecting section are provided with spiral drainage grooves, the surface of the drill rod is provided with a semicircular groove and an arc-shaped groove, the semicircular groove and the arc-shaped groove are arranged in a staggered mode, the top of the drill rod is provided with an installation section, the drill rod is provided with a circular hoop close to the top installation section, and the cross section of the installation section is a regular hexagon.
2. A rock drill hard bit according to claim 1, characterized in that: the semicircular groove and the arc-shaped groove are three and respectively correspond to the discharge groove.
3. A rock drill hard bit according to claim 1, characterized in that: the surface of the circular hoop is provided with external threads.
4. A rock drill hard bit according to claim 1, characterized in that: and wear-resistant layers are arranged on the surfaces of the drill rod and the drill bit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120306689.6U CN214273521U (en) | 2021-02-03 | 2021-02-03 | Hard drill bit of rock drilling machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120306689.6U CN214273521U (en) | 2021-02-03 | 2021-02-03 | Hard drill bit of rock drilling machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214273521U true CN214273521U (en) | 2021-09-24 |
Family
ID=77770209
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120306689.6U Active CN214273521U (en) | 2021-02-03 | 2021-02-03 | Hard drill bit of rock drilling machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214273521U (en) |
-
2021
- 2021-02-03 CN CN202120306689.6U patent/CN214273521U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| AU2009337174B2 (en) | Drill bit for a down-the-hole drill | |
| CN201034015Y (en) | Rock reamer with helical centralizer | |
| CN210195667U (en) | Novel drill bit with protective drill | |
| CN214273521U (en) | Hard drill bit of rock drilling machine | |
| CN201363103Y (en) | Compound anti-wear torque-reducing tool | |
| CN204457433U (en) | Anti-inclination composite drilling tool | |
| CN212428595U (en) | Constant-speed spiral rotary drilling bit | |
| CN203129963U (en) | Long screw pitch combined type dual-cone dual-screw spiral drilling bucket | |
| CN112065283A (en) | Diamond bit for large-caliber drilling construction | |
| CN201851036U (en) | Antifriction and resistance-diminishing centralizing short piece | |
| CN201679444U (en) | Low torque reamer | |
| CN214616392U (en) | Constant-torque and constant-weight-on-bit drilling device | |
| CN212898391U (en) | Borehole repairing device | |
| CN207813517U (en) | Anti- mud drum reducing centralizer | |
| CN106761481B (en) | A kind of automatic adjustment bit pressure tool | |
| CN101949265A (en) | Sapphire spiral complex comprehensive drilling bit | |
| CN112502638A (en) | Constant-torque and constant-weight-on-bit drilling device | |
| CN104854299A (en) | Rock bit tip and rock bit | |
| CN102213078A (en) | Internal spiral nozzle with diversion trench | |
| WO2020007343A1 (en) | Fixed cutting structure-composite cone drill bit | |
| CN213039228U (en) | Rock drilling tool with taper trapezoidal thread structure | |
| CN218376364U (en) | Drill column type centralizer | |
| CN211737067U (en) | Drill rod for in-hole cutting repair | |
| CN208024276U (en) | Petroleum geology exploration drill bit | |
| CN217681628U (en) | Small-bore rope coring drill rod centralizer |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |