CN205135420U - Spade that area pushed down guide card drill bit of digging a well - Google Patents
Spade that area pushed down guide card drill bit of digging a well Download PDFInfo
- Publication number
- CN205135420U CN205135420U CN201520990700.XU CN201520990700U CN205135420U CN 205135420 U CN205135420 U CN 205135420U CN 201520990700 U CN201520990700 U CN 201520990700U CN 205135420 U CN205135420 U CN 205135420U
- Authority
- CN
- China
- Prior art keywords
- spade
- drill bit
- guide card
- scraping blade
- well
- 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
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- Earth Drilling (AREA)
Abstract
The utility model relates to a spade that area pushed down guide card drill bit of digging a well, especially, relate to a well drilling drill bit, this drill bit is by the drilling rod, bore and hold in the palm, the reaming guide card pushes down, the long doctor -bar of spade, the short doctor -bar of spade, the cutting edge of a knife is constituteed, fixed on the relief of arc shovel have concurrently increase downward moment and reaming function push down the reaming guide card, utilize the structure principle and the advantage of luoyang shovel and fluted drill, greatly increased among the drill bit the tool joint perpendicular decurrent moment and the moment of torsion in when cutting, and simultaneously, the spade structure also is favorable to the reinforcing to dash the effect of chisel. This drill bit simple structure, manufacturing, maintenance cost are hanged down. During the construction, it is more laborsaving than original drill bit saves labour, effectively reduce intensity of labour. Can promote the efficiency of creeping into of rig by a wide margin.
Description
Technical field
The utility model relates to the spade well drill that a kind of band presses down guide card, belongs to drilling machinery, particularly relates to a kind of drilling bit.
Background technology
Well-digging machinery is different with operating principle according to the structure of well-rig, mainly contains three types: be respectively the large class of rotary drill, impact drill and combinationdrill 3.Wherein, combinationdrill application is wider.This type of rig combines the advantage of lifting beater mechanism and rotary shearing mechanism, utilizes the acting in conjunction of rushing cutter power and rotary cutting power of drill bit free-falling, reaches best drilling effect.At present, the rig used in rural area well-digging mostly also is this type of rig, and accordingly, generally use a kind of cylindrical hollow boring bit, lower end is the annular edge of a knife or the zigzag edge of a knife of cutting sth. askew.Be fixed with for broken silt, the reaming steel disc expanding hole diameter at its side horizontal.Due to this drill bit structurally existing defects, when creeping into, lack power vertically downward; Meanwhile, the too level and smooth structure of outer rim causes it lack necessary moment of torsion and rush cutter power, and when causing construction, workman operates on the ground and requires great effort very much, and drilling efficiency is lower, and cannot creep into layer of sand firm in structure.
Summary of the invention
The utility model object is, there is provided a kind of structure simple, the band that drilling efficiency is high presses down the spade well drill of guide card, this drill bit is by drilling rod, bore holder, press down reaming guide card, the long scraping blade of first spade, the short scraping blade of second spade, cutting knife-edge forms, the back-off of arc shovel secures have concurrently increase downward moment and hole expansion function press down reaming guide card, utilize structural principle and the advantage of luoyang spade and fluted drill, moment of torsion when to considerably increase in drill bit drilling process moment vertically downward and cut, simultaneously, spade structure is also conducive to the effect strengthening punching cutter.This drill bit structure is simple, manufactures, maintenance cost is low.During construction, save labor than original drill bit, effectively reduce labour intensity.Significantly can promote the drilling efficiency of rig.
A kind of band described in the utility model presses down the spade well drill of guide card, this drill bit by drilling rod, bore holder, press down reaming guide card, the long scraping blade of the first spade, the short scraping blade of the second spade, cutting knife-edge form, fix the long scraping blade of the first spade (4) and the short scraping blade of the second spade (5) in the bilateral symmetry of boring holder (2), be fixed with at the lateral surface of the long scraping blade of the first spade (4) and the short scraping blade of the second spade (5) and press down reaming guide card (3); The shovel of the long scraping blade of the first spade (4) and the short scraping blade of the second spade (5), along being above processed with interior straight outer oblique cutting knife-edge (6), fixes drilling rod (1) on the top of boring holder (2).
Press down reaming guide card (3) and be set to angle of inclination reverse each other.
Accompanying drawing explanation
Fig. 1 is the utility model structural representation;
Fig. 2 is the utility model elevation;
Fig. 3 is the utility model left view;
Fig. 4 is the utility model upward view.
Legend: 1, drilling rod; 2, holder is bored; 3, reaming guide card is pressed down; 4, the long scraping blade of spade; 5, the short scraping blade of spade; 6, cutting knife-edge.
Detailed description of the invention
The utility model by the restriction of following embodiment, can not determine concrete embodiment according to the technical solution of the utility model and actual conditions.
Embodiment
Below in conjunction with accompanying drawing, application principle of the present utility model is further described:
A kind of band described in the utility model presses down the spade well drill of guide card, this drill bit is by drilling rod, bore holder, press down reaming guide card, the long scraping blade of first spade, the short scraping blade of second spade, cutting knife-edge forms, the long scraping blade of the first spade 4 and the short scraping blade 5 of the second spade is fixed in the bilateral symmetry of boring holder 2, be fixed with at the lateral surface of the long scraping blade of the first spade 4 and the short scraping blade 5 of the second spade and press down reaming guide card 3, the reaming guide card 3 that presses down being fixed on the lateral surface of the long scraping blade of the first spade 4 and the short scraping blade 5 of the second spade is set to angle of inclination, the angle of inclination pressing down reaming guide card 3 is reverse each other, the shovel of the long scraping blade of the first spade 4 and the short scraping blade of the second spade 5 is along being above processed with interior straight outer oblique cutting knife-edge 6, drilling rod 1 is fixed on the top of boring holder 2,
As shown in Figure 1,2,3, 4, the spade well drill that band described in the utility model presses down guide card is combined with structural principle and the advantage of luoyang spade and fluted drill; The long scraping blade of first spade 4 and the short scraping blade of the second spade 5 are designed to the shovel type structure with interior curved arc shape, the length of the long scraping blade of the first spade 4 and the short scraping blade of the second spade 5 is variant, and between the long scraping blade of the first spade 4 and the short scraping blade of the second spade 5, leave certain space, not only substantially increase moment of torsion and the dynamics of bit cutting ground, and be conducive to keeping stable hole diameter, meanwhile, be convenient to the silt particle that cuts to backflow discharge with the impact of current; The shovel type structure of the long scraping blade of the first spade 4 and the short scraping blade of the second spade 5 can strengthen drill bit downward rush cutter effect, when drilling rod is pounded for 1 time, drill bit strength focuses on the spear of the first spade long scraping blade 4 lower end, because stressed area is very little, cause the impulse force of unit area very large, be conducive to broken rock and soil; The long scraping blade of the first spade 4 and the short scraping blade of the second spade 5 shovel along on be processed with interior straight outer oblique cutting knife-edge 6, make drill bit in running, possess powerful cutting and rush cutter ability; Respectively be provided with one at the lateral surface of the long scraping blade of the first spade 4 and the short scraping blade 5 of the second spade and press down reaming guide card 3, guide card 3 one end, companding hole is high, the other end is low, forms inclination angle in the horizontal direction, and the angle of inclination pressing down reaming guide card 3 is reverse each other, when drill bit rotates clockwise, press down reaming guide card 3 to cut in the ground of below, drill bit moves down and makes drill bit produce a downforce vertically downward, the dynamics of boring under greatly strengthen drill bit thereupon, meanwhile, the effect expanding boring is played; The short scraping blade 5 of first spade long scraping blade 4, second spade is with brill holder 2 and press down between reaming guide card 3 technique of welding can be adopted to be connected and fixed, and securing member also can be adopted to be connected and fixed, maintenance process simulation of being more convenient for.
The alloy steel products manufacture that parts described in the utility model can adopt hardness higher, to ensure that drill bit has higher drilling efficiency and application life.
Claims (2)
1. a band presses down the spade well drill of guide card, it is characterized in that this drill bit by drilling rod, bore holder, press down reaming guide card, the long scraping blade of the first spade, the short scraping blade of the second spade, cutting knife-edge form, fix the long scraping blade of the first spade (4) and the short scraping blade of the second spade (5) in the bilateral symmetry of boring holder (2), be fixed with at the lateral surface of the long scraping blade of the first spade (4) and the short scraping blade of the second spade (5) and press down reaming guide card (3); The shovel of the long scraping blade of the first spade (4) and the short scraping blade of the second spade (5), along being above processed with interior straight outer oblique cutting knife-edge (6), fixes drilling rod (1) on the top of boring holder (2).
2. band according to claim 1 presses down the spade well drill of guide card, it is characterized in that pressing down reaming guide card (3) is set to angle of inclination reverse each other.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520990700.XU CN205135420U (en) | 2015-12-03 | 2015-12-03 | Spade that area pushed down guide card drill bit of digging a well |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520990700.XU CN205135420U (en) | 2015-12-03 | 2015-12-03 | Spade that area pushed down guide card drill bit of digging a well |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205135420U true CN205135420U (en) | 2016-04-06 |
Family
ID=55621227
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520990700.XU Expired - Fee Related CN205135420U (en) | 2015-12-03 | 2015-12-03 | Spade that area pushed down guide card drill bit of digging a well |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205135420U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107401388A (en) * | 2017-08-31 | 2017-11-28 | 中交二航局第四工程有限公司 | A kind of rig bit freezing processing unit and method |
-
2015
- 2015-12-03 CN CN201520990700.XU patent/CN205135420U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107401388A (en) * | 2017-08-31 | 2017-11-28 | 中交二航局第四工程有限公司 | A kind of rig bit freezing processing unit and method |
| CN107401388B (en) * | 2017-08-31 | 2023-08-29 | 中交二航局第四工程有限公司 | Drilling machine stuck drill processing device and method |
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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: 20160406 Termination date: 20161203 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |