CN202659174U - Single-cone single-screw twist drill - Google Patents
Single-cone single-screw twist drill Download PDFInfo
- Publication number
- CN202659174U CN202659174U CN 201220321630 CN201220321630U CN202659174U CN 202659174 U CN202659174 U CN 202659174U CN 201220321630 CN201220321630 CN 201220321630 CN 201220321630 U CN201220321630 U CN 201220321630U CN 202659174 U CN202659174 U CN 202659174U
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- Prior art keywords
- square toes
- auger
- helical blade
- twist drill
- installing plate
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- Expired - Fee Related
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Abstract
The utility model discloses a single-cone single-screw twist drill. The single-cone single-screw twist drill is characterized in that a spiral blade (6) is arranged on the periphery of a twist drill pipe (5). A rectangular head mounting plate (8) is welded at the upper end of the twist drill pipe (5). A triangle reinforcing plate (7) is connected between the upper end of the twist drill pipe (5) and the rectangular-head mounting plate (8). A twist drill lug (10) is arranged on the external wall of the top of a rectangular head (11). An aim point (1) is arranged at the lower end of the twist drill pipe (5). The upper end of the spiral blade (6) is connected with the rectangular-head mounting plate (8), and the lower end of the spiral blade (6) extends to the lower end of the twist drill pipe (5). Pick boxes (4) with cutting picks (3) are evenly arranged on the cone-head section of the spiral blade (6). The single-cone single-screw twist drill is designed to enhance drilling rate of a drill bit and solve the problem that cracked aim point is hard to replace.
Description
Technical field
The present invention relates to the mechanical drill field, relate in particular to a kind of bipyramid list spiral shell auger.
Background technology
Rotary drilling rig is the heavy caliber high efficiency pore-forming equipment that uses in a kind of foundation construction, and its utilization remains that the drilling rod of vertical direction directly rotates excavation over the ground, thereby forms fast the stake hole of required diameter and the degree of depth on ground.This rotary drilling rig is because power is large, power is strong, easy to use, pore-forming is quick, so be widely used in the foundation construction process of engineering construction.Different according to formation drilling, short augers is divided into the short augers of rock and the short augers of soil layer.The rock screw drill bit is divided into conehead and flat-headed formula generally speaking, and the soil layer augers is the tack form.In use there is following problem in traditional single spiral shell augers of single cone: 1, the single-screw drill bit is in drilling process, and stability makes the hole irregularity that comes outbreak out not, and rate of penetration is slow; 2, under being suppressed, the guiding tap web bursts apart and is difficult to change.
The utility model content
A kind of bipyramid list spiral shell auger that the utility model provides its objective is to promote the drill bit rate of penetration, solves the difficult problem of changing of the accurate heart that bursts apart.
For carrying out above purpose, the technical solution adopted in the utility model: the single spiral shell auger of a kind of single cone, it comprises the accurate heart (1), bolt (2), pick (3), pick box (4), auger tube (5), helical blade (6), triangle gusset (7), square toes installing plate (8), square toes small gusset (9), auger hanger (10) and square toes (11); It is characterized in that: described auger tube (5) periphery is provided with helical blade (6), auger tube (5) upper end is welded with square toes installing plate (8), be connected with triangle gusset (7) between auger tube (5) upper end and the square toes installing plate (8), be provided with auger hanger (10) on square toes (11) external wall of upper portion, auger tube (5) lower end is equipped with the accurate heart (1); Described helical blade (6) upper end is connected with square toes installing plate (8), and the lower end extends to auger tube (5) lower end, and helical blade (6) conehead partly is evenly distributed with pick box (4), and pick (3) is installed on the pick box (4); Become the different angles distributing installation that 4 picks (3) are arranged on the accurate heart (1); Square toes (11) are installed on the square toes installing plate (8), are connected with square toes small gusset (9) between square toes (11) and the square toes installing plate (8).
Described auger tube (5) is cylindrical auger tube.
Described pick (3) becomes 50 ° of angles with helical blade (6) outer face, also becomes 50 ° of angles simultaneously under helical blade (6).
The described accurate heart (1) is the detachable accurate heart, and the accurate heart (1) is fixed on the auger tube (5) by bolt (2).
Described helical blade (6) is right-hand screw, and helical blade (6) the first half is the forward type blade, and the latter half is two conehead type blades.
The beneficial effects of the utility model: not only energy consumption is little for the single spiral shell auger of single cone described in the utility model, and has good stability, can effectively promote rate of penetration simultaneously.The detachable accurate heart makes the working service of drill bit convenient.The cloth tooth angle degree section of pick emulates the advanced, the creeping into of special use and weathered rocks, ovum gravel stratum that cementing properties is good.
Description of drawings
Fig. 1 is assembling 3 D stereo schematic diagram of the present utility model.
Numerical reference shown in the figure is expressed as: 1, the accurate heart; 2, bolt; 3, pick; 4, pick box; 5, auger tube; 6, helical blade; 7, triangle gusset; 8, square toes installing plate; The square toes small gusset; 10, auger hanger; 11, square toes.
The specific embodiment
By reference to the accompanying drawings the utility model is done further explaination.
As shown in Figure 1, assembly connection of the present utility model closes: described auger tube 5 peripheries are provided with helical blade 6, auger tube 5 upper ends are welded with square toes installing plate 8, be connected with triangle gusset 7 between auger tube 5 upper ends and the square toes installing plate 8, be provided with auger hanger 10 on square toes 11 external wall of upper portion, auger tube 5 lower ends are equipped with the accurate heart 1; Described helical blade 6 upper ends are connected with square toes installing plate 8, and the lower end extends to auger tube 5 lower ends, and helical blade 6 coneheads partly are evenly distributed with pick box 4, and pick 3 is installed on the pick box 4; Become the different angles distributing installation that 4 picks 3 are arranged on the accurate heart 1; Square toes 11 are installed on the square toes installing plate 8, are connected with square toes small gusset 9 between square toes 11 and the square toes installing plate 8.
When drill bit when creeping into, the pick 3 on the accurate heart 1 contacts the stratum at first, and formation drilling, the face of creeping into is a plane, makes drilling direction more accurate, stable.Along with going deep into of creeping into, the pick 3 on the blade screw blade 6 is started working, constantly driving.Because the radius of cylindrical auger tube 5 is less than the radius of the accurate heart 1, the earth that excavates and auger tube 5 frictions are little, are beneficial to and creep into, and save energy consumption.
Above the single spiral shell auger of a kind of single cone provided by the utility model is described in detail, herein principle of the present utility model and embodiment are set forth, the explanation of above embodiment just is used for helping to understand method of the present utility model and core concept thereof; Simultaneously, for one of ordinary skill in the art, according to thought of the present utility model, all will change in specific embodiments and applications, in sum, this description should not be construed as restriction of the present utility model.
Claims (5)
1. a list is bored single spiral shell auger, and it comprises the accurate heart (1), bolt (2), pick (3), pick box (4), auger tube (5), helical blade (6), triangle gusset (7), square toes installing plate (8), square toes small gusset (9), auger hanger (10) and square toes (11); It is characterized in that: described auger tube (5) periphery is provided with helical blade (6), auger tube (5) upper end is welded with square toes installing plate (8), be connected with triangle gusset (7) between auger tube (5) upper end and the square toes installing plate (8), be provided with auger hanger (10) on square toes (11) external wall of upper portion, auger tube (5) lower end is equipped with the accurate heart (1); Described helical blade (6) upper end is connected with square toes installing plate (8), and the lower end extends to auger tube (5) lower end, and helical blade (6) conehead partly is evenly distributed with pick box (4), and pick (3) is installed on the pick box (4); Become the different angles distributing installation that 4 picks (3) are arranged on the accurate heart (1); Square toes (11) are installed on the square toes installing plate (8), are connected with square toes small gusset (9) between square toes (11) and the square toes installing plate (8).
2. the single spiral shell auger of a kind of single cone according to claim 1 is characterized in that described auger tube (5) is cylindrical auger tube.
3. the single spiral shell auger of a kind of single cone according to claim 1 is characterized in that described pick (3) becomes 50 ° of angles with helical blade (6) outer face, also becomes 50 ° of angles simultaneously under helical blade (6).
4. the single spiral shell auger of a kind of single cone according to claim 1 is characterized in that the described accurate heart (1) is the detachable accurate heart, and the accurate heart (1) is fixed on the auger tube (5) by bolt (2).
5. the single spiral shell auger of a kind of single cone according to claim 1 is characterized in that described helical blade (6) is right-hand screw, and helical blade (6) the first half is the forward type blade, and the latter half is two conehead type blades.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220321630 CN202659174U (en) | 2012-07-05 | 2012-07-05 | Single-cone single-screw twist drill |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220321630 CN202659174U (en) | 2012-07-05 | 2012-07-05 | Single-cone single-screw twist drill |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202659174U true CN202659174U (en) | 2013-01-09 |
Family
ID=47454084
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220321630 Expired - Fee Related CN202659174U (en) | 2012-07-05 | 2012-07-05 | Single-cone single-screw twist drill |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202659174U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103510850A (en) * | 2013-10-16 | 2014-01-15 | 武汉武船机电设备有限责任公司 | Piling drilling rig |
| CN104863524A (en) * | 2015-05-25 | 2015-08-26 | 中国矿业大学 | Drill rod with cutting teeth on helical blade |
| CN109236191A (en) * | 2018-11-06 | 2019-01-18 | 中铁六局集团有限公司 | Long spire modified drilling pouring pile hole construction method |
-
2012
- 2012-07-05 CN CN 201220321630 patent/CN202659174U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103510850A (en) * | 2013-10-16 | 2014-01-15 | 武汉武船机电设备有限责任公司 | Piling drilling rig |
| CN103510850B (en) * | 2013-10-16 | 2017-04-05 | 武汉武船机电设备有限责任公司 | A kind of piling drilling rig |
| CN104863524A (en) * | 2015-05-25 | 2015-08-26 | 中国矿业大学 | Drill rod with cutting teeth on helical blade |
| CN109236191A (en) * | 2018-11-06 | 2019-01-18 | 中铁六局集团有限公司 | Long spire modified drilling pouring pile hole construction method |
| CN109236191B (en) * | 2018-11-06 | 2019-11-12 | 中铁六局集团有限公司 | Long spire modified drilling pouring pile hole construction 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: 20130109 Termination date: 20150705 |
|
| EXPY | Termination of patent right or utility model |