CN217421064U - Combined type detachable core drilling machine drill bit - Google Patents
Combined type detachable core drilling machine drill bit Download PDFInfo
- Publication number
- CN217421064U CN217421064U CN202221153069.4U CN202221153069U CN217421064U CN 217421064 U CN217421064 U CN 217421064U CN 202221153069 U CN202221153069 U CN 202221153069U CN 217421064 U CN217421064 U CN 217421064U
- Authority
- CN
- China
- Prior art keywords
- drill bit
- connecting end
- main body
- upper connecting
- lower connecting
- 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
- 238000005553 drilling Methods 0.000 title claims abstract description 25
- 230000008878 coupling Effects 0.000 claims 1
- 238000010168 coupling process Methods 0.000 claims 1
- 238000005859 coupling reaction Methods 0.000 claims 1
- 230000006378 damage Effects 0.000 abstract description 5
- 229910000831 Steel Inorganic materials 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 239000010959 steel Substances 0.000 description 3
- 238000005070 sampling Methods 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- 230000006978 adaptation Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000004568 cement Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 230000000087 stabilizing effect Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Images
Landscapes
- Sampling And Sample Adjustment (AREA)
Abstract
The utility model discloses a combined detachable core drilling machine drill bit, which comprises an upper connecting end (1), a drill bit main body (2), a lower connecting end (3) and cutter teeth (4); the drill bit main body (2) is of a hollow round tubular structure with openings at two ends, and the top and the bottom of the drill bit main body are respectively provided with a thread convex part (21); the upper connecting end is of a hollow round tubular structure with an opening at the bottom, a thread concave part (5) is formed at the bottom of the upper connecting end, and the thread concave part is matched and screwed with the thread convex part, so that the upper connecting end is detachably connected to the top of the drill bit main body; the lower connecting end is a hollow circular tube structure with openings at two ends, and a thread concave part is formed at the top of the lower connecting end, so that the lower connecting end is detachably connected to the bottom of the drill bit main body; the plurality of cutter teeth are respectively arranged at the bottom of the lower connecting end at intervals. The utility model discloses a split type detachable drill bit structure takes out inside core appearance fast, the simple operation, and can not damage the core appearance.
Description
Technical Field
The utility model relates to a road surface engineering test equipment especially relates to a modular but core machine drill bit is got to split.
Background
In the pavement engineering, sampling and coring are required to be carried out on a concrete pavement, and the sampling and coring are used for detecting performance parameters such as ultimate compressive strength and the like of the concrete pavement so as to ensure that the concrete pavement meets the construction requirements. At present, the road surface coring adopts special coring equipment, and a round tubular drill bit is drilled into the lower part of the road surface for coring operation.
After the coring equipment in the prior art is used for coring on the road surface, a core sample is difficult to take out from the inside of a drill bit and needs to be knocked by a hammer to be taken out, the core sample is easy to damage, coring is needed again after the core sample is damaged, operation is inconvenient, workload is increased, and excessive damage is caused to a road junction. Meanwhile, if the core sample is long, for example, the core sample of the cement stabilized macadam base layer comprises a water stabilizing base layer and a base layer through core, the length of the core sample can reach 75cm, the core sample is taken out from a drill bit in a knocking mode, the workload is high, the efficiency is low, and the breakage rate of taking out the core sample is very high. In addition, the drill bit is easy to wear in long-term operation, the integrated drill bit needs to be replaced integrally, steel resources are wasted, and particularly the drill bit with a long length is adopted.
Disclosure of Invention
An object of the utility model is to provide a modular but core machine drill bit is got to split takes out inside core appearance, simple operation fast through split type detachable drill bit structure, and can not damage the core appearance.
The utility model discloses a realize like this:
a combined type detachable core drilling machine drill bit comprises an upper connecting end, a drill bit main body, a lower connecting end and cutter teeth; the drill bit main body is of a hollow round tubular structure with openings at two ends, and the top and the bottom of the drill bit main body are respectively provided with a thread convex part; the upper connecting end is of a hollow round tubular structure with an opening at the bottom, a thread concave part is formed at the bottom of the upper connecting end, and the thread concave part is matched and screwed with the thread convex part, so that the upper connecting end is detachably connected to the top of the drill bit main body; the lower connecting end is a hollow round tubular structure with openings at two ends, and a thread concave part is formed at the top of the lower connecting end, so that the lower connecting end is detachably connected to the bottom of the drill bit main body; the plurality of cutter teeth are respectively arranged at the bottom of the lower connecting end at intervals.
The drill bit main body comprises two drill bit units of a semicircular tubular structure, the two drill bit units are spliced into the hollow circular tubular structure through the connecting assembly, and the splicing surfaces of the two drill bit units are in plane contact.
The connecting assembly comprises a connecting buckle and a connecting groove, the connecting buckle and the connecting groove are respectively arranged on two sides of the middle part of the drill bit unit, and the connecting buckle can be buckled in the connecting groove, so that the two drill bit units are detachably spliced into the drill bit main body with the hollow circular tubular structure through the connecting buckle and the connecting groove.
The top of the upper connecting end is provided with a connecting end, so that the upper connecting end is connected with the drill bit driving end of the core drilling machine in a matching manner through the connecting end, and the rotating direction of the drill bit driving end of the core drilling machine is opposite to the screwing direction of the threads of the thread concave part and the thread convex part.
The connecting end and the upper connecting end are coaxially arranged with the drill bit driving end of the core drilling machine.
The upper connecting end, the drill bit main body and the lower connecting end are coaxially arranged, the outer diameters of the upper connecting end, the drill bit main body and the lower connecting end are consistent, and the inner diameters of the upper connecting end, the drill bit main body and the lower connecting end are consistent.
Compared with the prior art, the utility model, following beneficial effect has:
1. the utility model discloses owing to be equipped with upper portion link, drill bit main part and lower part link, can connect soon through the detachable screw thread of screw thread convex part and screw thread concave part, and screw thread tightening direction and drill bit rotation opposite direction have guaranteed the drill bit and have got the integrality of core in-process, are convenient for completely take out the core appearance in the drill bit after the dismantlement, need not the hammer and strike, guarantee that the core appearance is intact, can reduce the repeated coring of unnecessary and the road surface destruction on the basis that satisfies experimental testing requirement.
2. The utility model discloses owing to be equipped with the drill bit main part that constitutes through the concatenation of drill bit unit, the drill bit main part can be dismantled, has further made things convenient for the core appearance to take out fast in the drill bit, can pass through the connector link lock joint simultaneously in the spread groove, the quick installation and the use of the drill bit main part of being convenient for, connect the reliability high, the simple operation.
3. The utility model discloses owing to adopt removable fraction structure, only need change after the sword tooth wearing and tearing lower part link can, need not whole change drill bit, practiced thrift steel consumption greatly, the cost is reduced can improve economic benefits to a certain extent.
Drawings
FIG. 1 is a sectional exploded view of the combined detachable core drill bit of the present invention;
fig. 2 is a schematic structural diagram of the overlooking angle of the combined detachable core drilling bit of the present invention.
In the figure, 1 upper connecting end, 11 connecting end, 2 drill bit main body, 21 thread convex part, 22 drill bit unit, 23 connecting buckle, 24 connecting groove, 3 lower connecting end, 4 cutter teeth and 5 thread concave part.
Detailed Description
The invention will be further explained with reference to the drawings and the specific embodiments.
Referring to the attached drawings 1 and 2, the combined detachable core drilling machine drill bit comprises an upper connecting end 1, a drill bit main body 2, a lower connecting end 3 and cutter teeth 4; the drill bit main body 2 is a hollow round tubular structure with two open ends, and the top and the bottom of the drill bit main body 2 are respectively provided with a thread convex part 21; the upper connecting end 1 is a hollow round tubular structure with an opening at the bottom, a thread concave part 5 is formed at the bottom of the upper connecting end 1, and the thread concave part 5 is matched and screwed with the thread convex part 21, so that the upper connecting end 1 is detachably connected to the top of the drill bit main body 2; the lower connecting end 3 is a hollow round tubular structure with two open ends, and a thread concave part 5 is formed at the top of the lower connecting end 3, so that the lower connecting end 3 can be detachably connected to the bottom of the drill bit main body 2; a plurality of cutter teeth 4 are respectively arranged at the bottom of the lower connecting end 3 at intervals. After the cutter teeth 4 are drilled into the concrete pavement to core, the upper connecting end 1 and the lower connecting end 3 can be rotated by a special wrench to be separated from the drill bit main body 2, so that a core sample can be taken out conveniently.
Preferably, the length of the upper connecting end 1 is 10cm, the total height of the lower connecting end 3 and the cutter tooth 4 is 5cm, the height of the thread concave portion 5 and the thread convex portion 21 is 2cm, and the diameter of the thread concave portion 5 and the thread convex portion 21 is 155 mm. The width of sword tooth 4 is 5mm, and the external diameter of arranging of a plurality of sword tooth 4 is 160mm, and the internal diameter is 150 mm. The upper connecting end 1, the drill bit main body 2, the lower connecting end 3 and the cutter teeth 4 can be made of high-strength steel, and the whole drill bit and each rotary joint are guaranteed to be firm and reliable in structure.
The drill bit main body 2 comprises two drill bit units 22 with a semicircular tubular structure, the two drill bit units 22 are spliced into a hollow circular tubular structure through a connecting assembly, and the splicing surfaces of the two drill bit units 22 are in plane contact. The drill unit 22 is detachably separable to further facilitate removal of the core sample inside.
The connecting assembly comprises a connecting buckle 23 and a connecting groove 24, the connecting buckle 23 and the connecting groove 24 are respectively arranged on two sides of the middle part of the drill bit unit 22, the connecting buckle 23 can be buckled in the connecting groove 24, and the two drill bit units 22 are detachably spliced into the drill bit main body 2 with a hollow round tubular structure through the connecting buckle 23 and the connecting groove 24. The quick assembly and disassembly of the drill unit 22 is realized by the fastening of the connecting buckle 23 and the connecting groove 24, and the core sample is convenient to take out from the drill body 2.
The top of the upper connecting end 1 is provided with a connecting end 11, so that the upper connecting end 1 is connected with the drill bit driving end of the core drilling machine in a matching manner through the connecting end 11, the rotating direction of the drill bit driving end of the core drilling machine is opposite to the screwing direction of the threads of the thread concave part 5 and the thread convex part 21, and the upper connecting end 1 and the lower connecting end 3 are prevented from being separated from the drill bit column body 2 during rotary drilling. Preferably, the connecting end 11 may be of a size and shape compatible with the connecting end of prior art drills to ensure a fit with the drill driving end of the core drill. Preferably, the height of the connecting end 11 is 40mm and the inner diameter is 36 mm.
The connecting end 11, the upper connecting end 1 and the drill bit driving end of the core drilling machine are coaxially arranged, and the drill bit driving end of the core drilling machine is ensured to safely drive the whole drill bit to perform core drilling operation through the connecting end 11.
The upper connecting end 1, the drill bit main body 2 and the lower connecting end 3 are coaxially arranged, the outer diameters of the upper connecting end 1, the drill bit main body 2 and the lower connecting end 3 are consistent, the inner diameters of the upper connecting end 1, the drill bit main body 2 and the lower connecting end 3 are consistent, and the stress uniformity of all parts of the whole drill bit is ensured. The internal diameter and the external diameter of upper portion link 1, bit main body 2 and lower part link 3 all are according to the internal diameter and the external diameter design of prior art's integral type drill bit, and the external diameter of upper portion link 1, bit main body 2 and lower part link 3 is 158mm, and the internal diameter is 152mm to with coring machine adaptation.
Referring to fig. 1 and fig. 2, the using method of the present invention is:
1. the preparation work of age determination, core drilling position selection and the like is the same as that of a common drill bit, and the detailed description is omitted here.
2. Assembling a drill bit: fixing the upper connecting end 1 by using an universal wrench, combining 2 drill bit units 22 of the drill bit main body 2 together and fastening and fixing the drill bit units through a connecting buckle 23 and a connecting groove 24, aligning and then rotationally screwing a thread convex part 21 at the top of the drill bit main body 2 with a thread concave part 5 of the upper connecting end 1, and fixing by using another universal wrench; the threaded recess 5 of the lower connection end 3 is screwed to the threaded protrusion 21 of the drill body 2 in the manner described above.
3. After the drill bit part is assembled, the upper connecting end 1 is connected with the drill bit driving end of the core drilling machine in a matching mode through the connecting end 11.
4. The core taking machine takes cores according to a conventional operation program, and the operation flow is not described again.
5. After coring, the core sample is positioned in the upper connecting end 1, the drill bit main body 2 and the lower connecting end 3, the drill bit main body 2, the lower connecting end 3 and the upper connecting end 1 are disassembled and taken down by using 2 universal wrenches according to an assembling method, and the upper connecting end 1 can be arranged on the coring machine without being disassembled.
6. The connector links 23 and the connector grooves 24 are opened, the 2 drill units 22 are separated, and the core sample is taken out.
7. And (5) repeating the step 2 to assemble the drill bit part again, and continuing to drill the next core sample.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and should not be taken as limiting the scope of the present invention, therefore, any modifications, equivalents, improvements and the like made within the spirit and principles of the present invention should be included in the scope of the present invention.
Claims (6)
1. The utility model provides a modular core machine drill bit can split which characterized by: comprises an upper connecting end (1), a drill bit main body (2), a lower connecting end (3) and cutter teeth (4); the drill bit main body (2) is of a hollow round tubular structure with openings at two ends, and the top and the bottom of the drill bit main body (2) are respectively provided with a thread convex part (21); the upper connecting end (1) is of a hollow round tubular structure with an opening at the bottom, a thread concave part (5) is formed at the bottom of the upper connecting end (1), and the thread concave part (5) is matched and screwed with the thread convex part (21) so that the upper connecting end (1) is detachably connected to the top of the drill bit main body (2); the lower connecting end (3) is of a hollow round tubular structure with openings at two ends, and a threaded concave part (5) is formed at the top of the lower connecting end (3) so that the lower connecting end (3) can be detachably connected to the bottom of the drill bit main body (2); a plurality of cutter teeth (4) are respectively arranged at the bottom of the lower connecting end (3) at intervals.
2. The combined detachable core drilling bit of claim 1, wherein: the drill bit main body (2) comprises two drill bit units (22) of a semicircular tubular structure, the two drill bit units (22) are spliced into the hollow circular tubular structure through the connecting component, and the splicing surfaces of the two drill bit units (22) are in plane contact.
3. The combined detachable core drilling bit of claim 2, wherein: coupling assembling include connector link (23) and spread groove (24), connector link (23) and spread groove (24) set up respectively in the middle part both sides of drill bit unit (22), connector link (23) can the lock joint in spread groove (24), make two drill bit units (22) pass through connector link (23) and spread groove (24) detachable concatenation become drill bit main part (2) of cavity circle tubular structure.
4. The combined detachable core drilling bit of claim 1, wherein: the top of the upper connecting end (1) is provided with a connecting end (11), so that the upper connecting end (1) is connected with the drill bit driving end of the core drilling machine in a matching manner through the connecting end (11), and the rotating direction of the drill bit driving end of the core drilling machine is opposite to the screwing direction of the threads of the thread concave part (5) and the thread convex part (21).
5. The combined detachable core drilling bit of claim 4, wherein: the connecting end (11) and the upper connecting end (1) are arranged coaxially with the drill bit driving end of the core drilling machine.
6. The combined detachable core drilling bit of claim 1, wherein: the drill bit is characterized in that the upper connecting end (1), the drill bit main body (2) and the lower connecting end (3) are coaxially arranged, the outer diameters of the upper connecting end (1), the drill bit main body (2) and the lower connecting end (3) are consistent, and the inner diameters of the upper connecting end (1), the drill bit main body (2) and the lower connecting end (3) are consistent.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221153069.4U CN217421064U (en) | 2022-05-13 | 2022-05-13 | Combined type detachable core drilling machine drill bit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221153069.4U CN217421064U (en) | 2022-05-13 | 2022-05-13 | Combined type detachable core drilling machine drill bit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217421064U true CN217421064U (en) | 2022-09-13 |
Family
ID=83187151
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221153069.4U Expired - Fee Related CN217421064U (en) | 2022-05-13 | 2022-05-13 | Combined type detachable core drilling machine drill bit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217421064U (en) |
-
2022
- 2022-05-13 CN CN202221153069.4U patent/CN217421064U/en not_active Expired - Fee Related
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US20210262291A1 (en) | Dual-Member Pipe Assembly | |
| US2708105A (en) | Combination core and plug bit | |
| CN107288671B (en) | Construction method of soft crushed coal rock mass drilling, sealing and injecting integrated extendable anchor rod | |
| CN217421064U (en) | Combined type detachable core drilling machine drill bit | |
| CN206693919U (en) | Drill hole of drilling machine reaming bit | |
| CN214836160U (en) | Drill rod capable of being rapidly disassembled | |
| CN201420507Y (en) | Irregular polygon grooving drill rod | |
| CN102248205B (en) | Quick transition joint | |
| WO2003097991A1 (en) | A thread joint for a drill string for percussive rock-drilling | |
| CN109915026A (en) | A kind of self-centering concentric simultaneous casing drilling tool | |
| US2685462A (en) | Rock drill | |
| CN101105116A (en) | Reamer bit structure | |
| CN204754803U (en) | A endless form crossover sub for pneumatic downhole hammer that is just circulating | |
| CN206632472U (en) | A kind of sheet material Manual tapping device | |
| CN211007327U (en) | Steel bar connector | |
| CN210829110U (en) | Quick detachable combination formula bore bit tail cover | |
| CN2473252Y (en) | Movable joint for joining equal strength reinforced bar machinery | |
| CN210678502U (en) | Multi-specification adjustable ratchet wrench | |
| CN202867481U (en) | Self-tapping self-locking wood screw spike | |
| CN220219180U (en) | Novel draw sword | |
| CN111058772A (en) | Eccentric drilling tool | |
| CN214944069U (en) | Mining quick assembly disassembly drilling rod | |
| CN204591168U (en) | Can the auger stem that is threaded of rotating | |
| CN209780781U (en) | Multi-section assembled drill rod | |
| CN211172724U (en) | Screw-thread steel connecting sleeve convenient to installation |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20220913 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |