CN213540265U - Cross rotary digging drill bit - Google Patents
Cross rotary digging drill bit Download PDFInfo
- Publication number
- CN213540265U CN213540265U CN202022698721.8U CN202022698721U CN213540265U CN 213540265 U CN213540265 U CN 213540265U CN 202022698721 U CN202022698721 U CN 202022698721U CN 213540265 U CN213540265 U CN 213540265U
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- Prior art keywords
- drill bit
- barrel
- cross
- thread
- holes
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- 238000005553 drilling Methods 0.000 claims abstract description 46
- 239000002689 soil Substances 0.000 claims abstract description 4
- 229910000851 Alloy steel Inorganic materials 0.000 claims description 4
- 238000010276 construction Methods 0.000 abstract description 6
- 230000000694 effects Effects 0.000 abstract description 2
- 238000010438 heat treatment Methods 0.000 description 6
- 238000009434 installation Methods 0.000 description 4
- 229910000831 Steel Inorganic materials 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 239000004576 sand Substances 0.000 description 3
- 239000010959 steel Substances 0.000 description 3
- 230000006978 adaptation Effects 0.000 description 2
- 230000002093 peripheral effect Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000007664 blowing Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 238000013467 fragmentation Methods 0.000 description 1
- 238000006062 fragmentation reaction Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
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Abstract
The utility model relates to a drill bit is dug soon to cross relates to the field of digging the drill bit soon, and it includes the barrel, the barrel lower extreme is the opening form, week side interval of barrel lower extreme is equipped with a plurality of first drill bits, lower extreme in the barrel can be dismantled and be connected with broken subassembly, broken subassembly is used for carrying out the breakage to the soil layer in the drilling. This application has the breakage rate that improves the drill bit, improves efficiency of construction's effect.
Description
Technical Field
The application relates to the field of rotary drilling bits, in particular to a cross-shaped rotary drilling bit.
Background
In the civil engineering construction process, a rotary drilling rig is often used for drilling and piling the foundation, the rotary drilling bit is one of the most important parts of the rotary drilling rig, and the structural performance of the rotary drilling rig has an important influence on the working efficiency of the rotary drilling rig.
A chinese patent with application number CN201820768366.7 discloses a drill bit of a rotary drilling machine, which comprises a drilling tool with a downward opening and a cylindrical shape, wherein the opening of the drilling tool is provided with drilling teeth, and a heat collecting cavity is arranged in the drilling tool; an air inlet communicated with the heat collection cavity is formed in the outer top wall of the drilling tool, and an air outlet communicated with the heat collection cavity is formed in the outer side wall of the drilling tool; a heating box is arranged on the outer top wall of the drilling tool, and an air outlet communicated with the air inlet is arranged on the inner bottom wall of the heating box; the heating box is internally provided with a heating wire for heating air and a fan for blowing the hot air to the air outlet; the outer side wall of the heating box is also provided with an air suction port, the air suction port is positioned on one side of the fan, and the air outlet is positioned on the other side of the fan.
With respect to the related art among the above, the inventors consider that the following drawbacks exist: when the drill bit operates on a firm stratum, the drilling teeth on the periphery of the lower end of the drilling tool crush the stratum on the periphery of the drilled hole, and the crushing rate is low, so that a constructor is required to crush the stratum in the drilled hole again, and the construction efficiency is reduced.
SUMMERY OF THE UTILITY MODEL
In order to improve the breakage rate of drill bit, improve the efficiency of construction, this application provides a drill bit is dug soon to cross.
The application provides a cross rotary drilling bit adopts following technical scheme:
the utility model provides a drill bit is dug soon to cross, includes the barrel, the barrel lower extreme is the opening form, week side interval of barrel lower extreme is equipped with a plurality of first drill bits, lower extreme in the barrel can be dismantled and be connected with broken subassembly, broken subassembly is used for carrying out the breakage to the soil layer in the drilling.
Through adopting above-mentioned technical scheme, the during operation, along with the barrel is rotatory, first drill bit is broken to the firm stratum in drilling week side, crushing unit carries out the breakage to firm stratum in the drilling, first drill bit and crushing unit combine together and carry out abundant breakage to the firm stratum of drilling department, improve the fragmentation rate of drill bit, thereby improve the efficiency of construction, when drilling to softer stratum, can follow the barrel with crushing unit and dismantle, avoid using crushing unit, prolong crushing unit's life.
Optionally, the crushing assembly comprises: the fixing frame, the second drill bit and the fixing piece;
the end of the fixing frame is provided with a sliding block, the inner side wall of the barrel is provided with a sliding groove, the sliding groove is vertically arranged, the lower end of the sliding groove is in an open shape, the sliding block is assembled with the sliding groove in a sliding mode, the fixing piece is provided with a plurality of groups, the sliding block is connected with the barrel through the plurality of groups in a separable mode, the second drill bits are arranged in a plurality of groups, and the second drill bits are arranged on the lower surface of the fixing frame at intervals.
Through adopting above-mentioned technical scheme, during operation, the second drill bit on the mount carries out the breakage to firm stratum in the drilling, along with the rotation of barrel, during the installation, slides the slider into the barrel along the opening part of spout lower extreme, and is fixed mount and barrel through the multiunit mounting, makes the installation of second drill bit more firm, guarantees going on smoothly of crushing work.
Optionally, the fixing frame is in a cross shape, the center of the fixing frame is located on the central axis of the cylinder, and the lower surface of the center of the fixing frame is provided with the first drill bit.
Through adopting above-mentioned technical scheme, crisscross mount and second drill bit combine together to form the broken radius of four drilling in the barrel, can realize that multiple repetition carries out the breakage to firm stratum in the drilling, further improve the percentage of damage of second drill bit.
Optionally, the sliding block is T-shaped, the sliding groove is also T-shaped, and the sliding block and the sliding groove are in sliding fit.
Through adopting above-mentioned technical scheme, the slider and the sliding adaptation of T shape spout of T shape, the installation of the mount of both being convenient for also can prevent that the mount from taking place to remove on the horizontal direction simultaneously, makes the installation of mount more firm.
Optionally, the fixing member is a locking bolt, the number of the locking bolts is two, two threaded through holes are formed in the inner side wall of the barrel body, the two threaded through holes are respectively located on two sides of the vertical portion of the sliding groove, the threaded through holes are communicated with the sliding groove, a threaded groove is formed in a position, corresponding to the threaded through holes, of the horizontal portion of the sliding block, and the locking bolt penetrates through the threaded through holes and is inserted into the threaded groove to lock and fix the sliding block and the barrel body.
Through adopting above-mentioned technical scheme, twist and move the locking bolt, make the locking bolt and thread groove, threaded through-hole between separate or be connected to realize the separation and the fixed between slider and the barrel, convenient operation is simple.
Optionally, the inner side wall of the cylinder body is provided with a plurality of sinking grooves, the sinking grooves are communicated with the threaded through holes, and one end, far away from the sliding block, of the locking bolt is located in the sinking grooves.
Through adopting above-mentioned technical scheme, the heavy groove makes the locking bolt keep away from the one end of thread groove can not protrusion in the inner wall of barrel, when avoiding digging the drilling soon, the locking bolt constantly contacts with firm stratum and causes wearing and tearing.
Optionally, the peripheral wall of barrel is equipped with the thread-like sand grip of many consistent directions of screwing.
Through adopting above-mentioned technical scheme, the sand grip has the guard action, can prevent that the barrel from being excessively worn and torn when drilling, and the frictional force when the barrel is dug soon can be reduced to the sand grip of screw thread form, more is favorable to digging the drilling soon of drill bit.
Optionally, the first drill bit and the second drill bit are both made of alloy steel.
Through adopting above-mentioned technical scheme, the intensity of first drill bit and second drill bit that alloy steel made can be improved to first drill bit, makes the drill bit not fragile when firm stratum digs the drilling soon, prolongs the life of drill bit.
In summary, the present application includes at least one of the following beneficial technical effects:
1. when the drill bit is used for drilling a softer stratum, the crushing assembly can be detached from the barrel, so that the use of the crushing assembly is avoided, and the service life of the crushing assembly is prolonged;
2. the cross-shaped fixing frame is combined with the second drill bit to form the crushing radii of four drill holes in the cylinder, so that firm stratums in the drill holes can be repeatedly crushed for multiple times, and the crushing rate of the second drill bit is further improved;
3. the locking bolt is screwed to separate or connect the locking bolt with the thread groove and the thread through hole so as to separate and fix the sliding block and the cylinder, and the operation is convenient and simple.
Drawings
FIG. 1 is a schematic diagram of the overall structure of an embodiment of the present application;
FIG. 2 is a schematic view of a connection structure between a slider and a cylinder according to an embodiment of the present application.
Reference numerals: 1. a barrel; 11. a chute; 12. sinking a groove; 2. a first drill bit; 3. a crushing assembly; 31. a fixed mount; 311. a slider; 32. a second drill bit; 33. a fixing member; 331. locking the bolt; 4. and (4) raised strips.
Detailed Description
The present application is described in further detail below with reference to figures 1-2.
The embodiment of the application discloses a drill bit is dug soon to cross. Referring to fig. 1, the cross rotary drilling bit comprises a barrel body 1, the barrel body 1 is made of steel materials, the lower end of the barrel body 1 is in an opening shape, a plurality of threaded protruding strips 4 which are consistent in rotating direction are welded on the outer peripheral wall of the barrel body 1, the protruding strips 4 are made of steel materials, a plurality of first drill bits 2 are welded on the lower end of the barrel body 1 at the periphery side of the lower end of the barrel body at uniform intervals, and the first drill bits 2 are obliquely arranged along the rotating direction of the barrel body 1 at the lower end of the.
The lower extreme in the barrel 1 can be dismantled and be connected with broken subassembly 3, and broken subassembly 3 is used for carrying out the breakage to the soil layer in the drilling, and broken subassembly 3 includes: a fixed mount 31, a second drill 32, and a fixing member 33; mount 31 is cross shape, the center department of mount 31 is located the center axis of barrel 1, mount 31 is made by the steel material, the lower surface welding of mount 31 center department has first drill bit 2, second drill bit 32 is equipped with a plurality ofly, second drill bit 32 also adopts alloy steel to make, the lower surface of mount 31 is located to a plurality of second drill bit 32 intervals, the lower extreme of second drill bit 32 also is laid along the precession direction slope of barrel 1, the lower extreme of second drill bit 32 is a little higher than the lower extreme of first drill bit 2.
Four ends of mount 31 all are equipped with slider 311, and slider 311 is the T shape, and slider 311 and mount 31 integrated into one piece, barrel 1's inside wall have been seted up spout 11, and spout 11 also is the T shape, and spout 11 is vertical lays and the lower extreme is the opening form, slider 311 and 11 sliding assembly of spout, slider 311 and 11 sliding adaptation of spout.
Referring to fig. 1 and 2, the fixing member 33 is provided with a plurality of sets, the plurality of sliding blocks 311 are detachably connected with the barrel body 1 through the plurality of sets of fixing members 33, the fixing member 33 is a locking bolt 331, the locking bolt 331 is provided with two screw through holes, the inner side wall of the barrel body 1 is provided with two screw through holes, the two screw through holes are respectively located at two sides of the vertical portion of the sliding groove 11, the screw through holes are communicated with the sliding groove 11, a screw groove is formed at a position where the horizontal portion of the sliding block 311 corresponds to the screw through holes, and the locking bolt 331 penetrates through the screw through holes and is inserted into the. The inner side wall of the barrel body 1 is provided with a plurality of sinking grooves 12, the sinking grooves 12 are communicated with the thread through holes, and one end of the locking bolt 331, which is far away from the sliding block 311, is positioned in the sinking grooves 12.
The implementation principle of the cross-shaped rotary drilling bit in the embodiment of the application is as follows: the during operation, along with barrel 1 is rotatory, first drill bit 2 is broken to the firm stratum of drilling week side, firm stratum is broken in the second drill bit 32 on the mount 31 is to drilling, first drill bit 2 and second drill bit 32 combine together and carry out abundant breakage to the firm stratum of drilling department, the percentage of damage of drill bit is improved, thereby improve the efficiency of construction, when drilling to softer stratum, can dismantle broken subassembly 3 from barrel 1, avoid using broken subassembly 3, prolong the life of broken subassembly 3.
The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.
Claims (8)
1. The utility model provides a drill bit is dug soon to cross which characterized in that: including barrel (1), barrel (1) lower extreme is the opening form, the week side interval of barrel (1) lower extreme is equipped with a plurality of first drill bits (2), lower extreme in barrel (1) can be dismantled and be connected with broken subassembly (3), broken subassembly (3) are used for carrying out the breakage to the soil layer in the drilling.
2. The cross-shaped rotary drilling bit according to claim 1, wherein: the crushing assembly (3) comprises: a fixed frame (31), a second drill (32) and a fixed piece (33);
the tip of mount (31) all is equipped with slider (311), spout (11) have been seted up to the inside wall of barrel (1), spout (11) are vertical to be laid and the lower extreme is the opening form, slider (311) with spout (11) sliding assembly, mounting (33) are equipped with the multiunit, and are a plurality of slider (311) with respectively through the multiunit between barrel (1) mounting (33) detachable's connection, second drill bit (32) are equipped with a plurality ofly, and are a plurality of second drill bit (32) interval is located the lower surface of mount (31).
3. The cross-shaped rotary drilling bit according to claim 2, wherein: the fixing frame (31) is in a cross shape, the center of the fixing frame (31) is located on the central axis of the cylinder body (1), and a first drill bit (2) is arranged on the lower surface of the center of the fixing frame (31).
4. The cross-shaped rotary drill bit according to claim 3, characterized in that: the sliding block (311) is T-shaped, the sliding groove (11) is also T-shaped, and the sliding block (311) is matched with the sliding groove (11) in a sliding mode.
5. The cross-shaped rotary drilling bit according to claim 4, wherein: the fixing piece (33) is a locking bolt (331), the locking bolt (331) is provided with two, two thread through holes are formed in the inner side wall of the barrel body (1), the two thread through holes are respectively located on two sides of the vertical portion of the sliding groove (11), the thread through holes are communicated with the sliding groove (11), a thread groove is formed in the position, corresponding to the thread through holes, of the horizontal portion of the sliding block (311), and the locking bolt (331) penetrates through the thread through holes and is inserted into the thread groove to lock and fix the sliding block (311) and the barrel body (1).
6. The cross-shaped rotary drilling bit according to claim 5, wherein: the inner side wall of the barrel body (1) is provided with a plurality of sinking grooves (12), the sinking grooves (12) are communicated with the thread through hole, and one end, far away from the sliding block (311), of the locking bolt (331) is located in the sinking grooves (12).
7. The cross-shaped rotary drilling bit according to claim 6, wherein: the periphery wall of the cylinder body (1) is provided with a plurality of thread-shaped convex strips (4) with consistent turning directions.
8. The cross-shaped rotary drill bit according to claim 7, characterized in that: the first drill bit (2) and the second drill bit (32) are both made of alloy steel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022698721.8U CN213540265U (en) | 2020-11-20 | 2020-11-20 | Cross rotary digging drill bit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022698721.8U CN213540265U (en) | 2020-11-20 | 2020-11-20 | Cross rotary digging drill bit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213540265U true CN213540265U (en) | 2021-06-25 |
Family
ID=76485141
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022698721.8U Expired - Fee Related CN213540265U (en) | 2020-11-20 | 2020-11-20 | Cross rotary digging drill bit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213540265U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN118208150A (en) * | 2024-05-21 | 2024-06-18 | 中铁建工集团第二建设有限公司 | Rotary excavating device and method for building construction |
-
2020
- 2020-11-20 CN CN202022698721.8U patent/CN213540265U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN118208150A (en) * | 2024-05-21 | 2024-06-18 | 中铁建工集团第二建设有限公司 | Rotary excavating device and method for building construction |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20210625 |