CN102852461A - Core drilling drill with barrier crushing and chip-discharge functions - Google Patents
Core drilling drill with barrier crushing and chip-discharge functions Download PDFInfo
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- CN102852461A CN102852461A CN2012103592613A CN201210359261A CN102852461A CN 102852461 A CN102852461 A CN 102852461A CN 2012103592613 A CN2012103592613 A CN 2012103592613A CN 201210359261 A CN201210359261 A CN 201210359261A CN 102852461 A CN102852461 A CN 102852461A
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- core drilling
- chip removal
- drilling drill
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Abstract
The invention relates to a core drilling drill with barrier crushing and chip-discharge functions. The core drilling drill is characterized by comprising a drill matrix which is in a hollow cylinder shape. A drill stem connection portion is arranged at the upper end, the lower end is radially retracted inwards to form a separation cutting ring, a boss surface formed by the inwards-retracted drill matrix is an inclined surface, and a coring mechanism arranging place is formed between the interior of the drill matrix and the separation cutting ring; and outer spirals are connected onto the outer surface of the drill matrix, and cutting tools evenly distributed on the circumference are connected onto the outer surface and the inclined surface of the separation cutting ring. According to the core drilling drill with barrier crushing and chip-discharge functions, space nearby the cutting tools is large, so that reduction of frictional heating between the drill and lunar soil is facilitated; besides, the surface of the drill is hardened and smoothed, so that the frictional heating is reduced greatly; and crushing, separation and chip discharging effects during the drilling are good, and the structure can further solve frictional heating problem to a certain extent, so that the drill is applicable to drill and sample on lunar surfaces.
Description
Technical field
The invention belongs to aerospace field, relate to a kind of drilling tool that under the aerospace environment, drills through moonscape soil, particularly a kind of core drilling drill bit with broken obstruct and chip removal function.
Background technology
Space flight and aviation is the human natural forward position engineering of exploring, walk space-ward and become the requisite sign of science and technology power, the lunar exploration engineering is a relaying stage of China's aerospace industry, stepped the first step of the external talent scout's rope of China, the achievement in this stage will be explored for next step outer space invaluable experience will be provided, the lunar exploration engineering mainly is to open the Mysterious Veil of lunar environment by remote measurement remote sensing and final moonfall, to launch a series of scientific research project for the moon after the moonfall, each link is extremely important, one of them will obtain the lunar surface material sample exactly, and this has just related to the research and development of moonscape boring tool.Owing to receiving the impact of moon vacuum environment, can't use cutting fluid to the drilling tool factor such as lower the temperature in the low and drilling process of lunar soil thermal conductivity, can cause that drill bit and the fricative heat of lunar soil can't distribute in the drilling process, affect the broken drilling depth efficient of drilling tool and the quality of coring; And menology soil layer complex structure, lunar soil density can't be determined with change in depth, rock distribution is random in the lunar soil of top layer, and the interlaced mechanical strength of lunar soil particle is large, all can cause cutting element serious wear in the drilling process, ruptures or come off, drill pipe buckling distortion produces the phenomenons such as bit freezing; And drill bit internal also will install the corning machine structure additional, thus must redesign existing core drill structure, to satisfy its specific (special) requirements.
Summary of the invention
In order to address the above problem, the invention provides a kind of core drilling drill bit with broken obstruct and chip removal function, satisfy the requirement of moon particular surroundings, carry out fragmentation, isolation and chip removal, be that collecting work reliably carries out.
The used technical scheme of the present invention is a kind of core drilling drill bit with broken obstruct and chip removal function, it is characterized in that comprising bit matrix, bit matrix is the open circles tubular, the upper end is provided with the drilling rod connecting portion, the footpath, lower end is inwardly received and is formed the isolation cut ring, receiving the boss face that forms in the bit matrix is the inclined-plane, bit matrix inner its with the isolation cut ring between formation one corning machine structure accommodation space; The bit matrix external surface is connected with external spiral, is connected with circumferential equally distributed cutting element with isolation cut ring external surface and inclined-plane.
The edge is concordant with isolation cut ring lower end edge under the described cutting element.
Described isolation cut ring lower end edge is provided with the ring cutting tooth of circumferential distribution, and the ring cutting crown is lower than cutting element downwards.
Described ring cutting tooth passes isolation cut ring inner surface and reaches its inside.
Described external spiral is one, and one in the cutting element all extends to the bit matrix external surface and is connected with this external spiral starting point.
Described external spiral is two, and cutting element is four, and wherein non-conterminous two cutting elements extend to the bit matrix external surface and connect with corresponding external spiral starting point.
Described external spiral head number equates with the cutting element number, and each cutting element all extends to the bit matrix external surface and connects with corresponding external spiral starting point.
Be provided with broken projection on the described inclined-plane between the adjacent cutting tool, broken projection is in the axially inside of the outer plane of flattening of bit matrix.
Cutting element maximum point external diameter is greater than the external spiral external diameter.
The present invention is by being received in its inner corning machine structure accommodation space that forms in the bit matrix lower end, be used for laying the corning machine structure, the isolation cut ring that forms in its underpart is used for the inside and outside lunar soil of ring cutting isolation, the boss face that is connected to form between bit matrix and isolation cut ring is the inclined-plane, be used for guiding outside lunar soil to discharge boring along external spiral, effectively reduce frictional heating, near the cutting element space greatly also be conducive to reduce and lunar soil between frictional heating; The fragmentation during drilling of this device, isolation, chip removal are effective, and this structure has also well solved the problem of frictional heating, are applicable to menology probing sampling.
Description of drawings
Fig. 1 is embodiment of the invention structural representation.
Number in the figure title: 1 bit matrix; 2 drilling rod connecting portions; 3 isolation cut ring; 4 inclined-planes; 5 corning machine structure accommodation space; 6 external spirals; 7 cutting elements; 8 ring cutting teeth.
The specific embodiment
The embodiment of the invention as shown in Figure 1, this has the broken bit matrix 1 that is provided with the open circles tubular with the core drilling drill bit of chip removal function that intercepts, its upper end is provided with drilling rod connecting portion 2, be used for being connected with drilling rod, the footpath, lower end is inwardly received and is formed isolation cut ring 3, the boss face that the interior receipts of bit matrix 1 form is inclined-plane 4, forms a corning machine structure accommodation space 5 at bit matrix 1 inner its with 3 of isolation cut ring, is used for arrangement tubulose corning machine structure; Bit matrix 1 external surface is connected with external spiral 6, is connected with circumferential equally distributed cutting element 7 with isolation cut ring 3 external surfaces and inclined-plane 4, and external spiral 6 is connected with cutting element 7, and 7 times edges of cutting element are concordant with isolation cut ring 3 lower end edges; Isolation cut ring 3 lower end edges are provided with the ring cutting tooth 8 of circumferential distribution; Drilling rod is equipped with bit matrix 1 interior corresponding corning machine structure accommodation space 5 and gets the core packaging mechanism during use, get core packaging mechanism and seamless being combined together in isolation cut ring 3 tops, prevent that the lunar soil chip from entering therebetween, drilling rod and bit matrix 1 revolution during lower brill, carrying out ring cutting by 3 pairs of lunar soil of ring cutting tooth 8 and isolation cut ring separates, isolation cut ring 3 outside lunar soil are broken under cutting element 7 effects, the gathering sill that surrounds along isolation cut ring outside, inclined-plane and cutting element 7 enters external spiral 6 eliminating borings, can effectively reduce frictional heating; Along with entering, the lunar soil in the descending isolation cut ring 3 of drill bit gets the core packaging mechanism; Near this device cutting element the space greatly also be conducive to reduce and lunar soil between frictional heating, this bit face is arranged again all through the sclerosis smooth treatment, also reduced greatly frictional heating; Fragmentation during drilling, isolation, chip removal are effective, the solution that this structure can also be to a certain degree the problem of frictional heating, be applicable to menology probing sampling.
Ring cutting tooth 8 can be passed isolation cut ring 3 inner surfaces during the invention process and reach its inside, make the lunar soil diameter that enters in the isolation cut ring 3 less than isolation cut ring 3 internal diameters, be conducive to reduce friction; Can also on inclined-plane 4, broken projection be set 7 of adjacent cutting tools, during revolution feeds the fragment of holing be got rid of in the outside further broken, avoid bit freezing to make chip removal more smooth and easy.
Claims (8)
1. one kind has the broken core drilling drill bit that intercepts with chip removal function, it is characterized in that comprising bit matrix (1), bit matrix (1) is the open circles tubular, the upper end is provided with drilling rod connecting portion (2), the footpath, lower end is inwardly received and is formed isolation cut ring (3), receiving the boss face that forms in the bit matrix (1) is inclined-plane (4), bit matrix (1) inner its with isolation cut ring (3) between formation one corning machine structure accommodation space (5); Bit matrix (1) external surface is connected with external spiral (6), is connected with circumferential equally distributed cutting element (7) with isolation cut ring (3) external surface and inclined-plane (4).
2. the core drilling drill bit with broken obstruct and chip removal function according to claim 1 is characterized in that under the described cutting element (7) along concordant with isolation cut ring (3) lower end edge.
3. the core drilling drill bit with broken obstruct and chip removal function according to claim 2 is characterized in that described isolation cut ring (3) lower end edge is provided with the ring cutting tooth (8) of circumferential distribution, and ring cutting tooth (8) point is lower than cutting element (7) downwards
Core drilling drill bit with broken obstruct and chip removal function according to claim 3 is characterized in that described ring cutting tooth (8) passes isolation cut ring (3) inner surface and reaches its inside.
4. according to claim 1 have a broken core drilling drill bit that intercepts with chip removal function, it is characterized in that described external spiral (6) is one, one in the cutting element (7) all extends to bit matrix (1) external surface and is connected with this external spiral (6) starting point.
5. according to claim 1 have a broken core drilling drill bit that intercepts with chip removal function, it is characterized in that described external spiral (6) is two, cutting element (7) is four, and wherein non-conterminous two cutting elements (7) extend to bit matrix (1) external surface and connect with corresponding external spiral (6) starting point.
6. according to claim 1 have a broken core drilling drill bit that intercepts with chip removal function, it is characterized in that described external spiral (a 6) number equates with cutting element (7) number, each cutting element (7) all extends to bit matrix (1) external surface and connects with corresponding external spiral (6) starting point.
7. the core drilling drill bit with broken obstruct and chip removal function according to claim 1 is characterized in that being provided with broken projection between the upper adjacent cutting tool (7) in described inclined-plane (4), and broken projection is in the inside of the axial outer plane of flattening of bit matrix (1).
8. the core drilling drill bit with broken obstruct and chip removal function according to claim 1 is characterized in that described cutting element (7) maximum point external diameter is greater than external spiral (6) external diameter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012103592613A CN102852461A (en) | 2012-09-25 | 2012-09-25 | Core drilling drill with barrier crushing and chip-discharge functions |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012103592613A CN102852461A (en) | 2012-09-25 | 2012-09-25 | Core drilling drill with barrier crushing and chip-discharge functions |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102852461A true CN102852461A (en) | 2013-01-02 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012103592613A Pending CN102852461A (en) | 2012-09-25 | 2012-09-25 | Core drilling drill with barrier crushing and chip-discharge functions |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102852461A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107515134A (en) * | 2017-10-11 | 2017-12-26 | 哈尔滨工业大学 | The stagnant sealing structure of spiral grid type anti-sticking |
| CN109083598A (en) * | 2018-10-12 | 2018-12-25 | 哈尔滨工业大学 | The low high-effect simulation lunar rock coring drill bit of active force |
| CN109357906A (en) * | 2018-11-16 | 2019-02-19 | 哈尔滨工业大学 | A kind of hollow lunar soil core bit of integrated space spherical helix of chip chip removal |
| CN111504694A (en) * | 2020-05-20 | 2020-08-07 | 四川省地震局 | Light shielding type deep soil layer or soil sampler |
| CN115163060A (en) * | 2022-07-13 | 2022-10-11 | 中国科学院空间应用工程与技术中心 | Clamp type driving star deep sampling drilling system |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US1636896A (en) * | 1926-12-11 | 1927-07-26 | Oil Well Core Drilling Company | Core drill |
| DE19623887A1 (en) * | 1996-06-05 | 1997-12-11 | Witega Angewandte Werkstoff Forschung Gemeinnuetzige Gmbh Adlershof | Drilling bit used to extract near-surface core samples, e.g. from polluting waste dumps |
| CN201714324U (en) * | 2010-07-22 | 2011-01-19 | 大庆飞马鸿信钻采设备制造有限公司 | Scraper-type steel body PDC airtight coring bit |
| CN101999027A (en) * | 2008-05-13 | 2011-03-30 | 长年Tm公司 | Sonic drill bit for core sampling |
-
2012
- 2012-09-25 CN CN2012103592613A patent/CN102852461A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US1636896A (en) * | 1926-12-11 | 1927-07-26 | Oil Well Core Drilling Company | Core drill |
| DE19623887A1 (en) * | 1996-06-05 | 1997-12-11 | Witega Angewandte Werkstoff Forschung Gemeinnuetzige Gmbh Adlershof | Drilling bit used to extract near-surface core samples, e.g. from polluting waste dumps |
| CN101999027A (en) * | 2008-05-13 | 2011-03-30 | 长年Tm公司 | Sonic drill bit for core sampling |
| CN201714324U (en) * | 2010-07-22 | 2011-01-19 | 大庆飞马鸿信钻采设备制造有限公司 | Scraper-type steel body PDC airtight coring bit |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107515134A (en) * | 2017-10-11 | 2017-12-26 | 哈尔滨工业大学 | The stagnant sealing structure of spiral grid type anti-sticking |
| CN109083598A (en) * | 2018-10-12 | 2018-12-25 | 哈尔滨工业大学 | The low high-effect simulation lunar rock coring drill bit of active force |
| CN109357906A (en) * | 2018-11-16 | 2019-02-19 | 哈尔滨工业大学 | A kind of hollow lunar soil core bit of integrated space spherical helix of chip chip removal |
| CN111504694A (en) * | 2020-05-20 | 2020-08-07 | 四川省地震局 | Light shielding type deep soil layer or soil sampler |
| CN111504694B (en) * | 2020-05-20 | 2022-11-01 | 四川省地震局 | Light shielding type deep soil layer or soil sampler |
| CN115163060A (en) * | 2022-07-13 | 2022-10-11 | 中国科学院空间应用工程与技术中心 | Clamp type driving star deep sampling drilling system |
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Application publication date: 20130102 |