CN205012953U - Drill bit of rotary drilling rig - Google Patents
Drill bit of rotary drilling rig Download PDFInfo
- Publication number
- CN205012953U CN205012953U CN201520683462.8U CN201520683462U CN205012953U CN 205012953 U CN205012953 U CN 205012953U CN 201520683462 U CN201520683462 U CN 201520683462U CN 205012953 U CN205012953 U CN 205012953U
- Authority
- CN
- China
- Prior art keywords
- reaming
- slag
- tube body
- drill bit
- coring tube
- 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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Abstract
The utility model discloses a drill bit of rotary drilling rig belongs to the construction machinery field, including the drill bit main part, the drill bit main part includes the reaming barrel and gets the core barrel, the reaming barrel with get the core barrel and pass through welded connection, the upper end of reaming barrel is equipped with drilling rod connecting device, is equipped with the hobbing cutter that the reaming was used on the excircle lateral wall of reaming barrel, the lateral wall bottom of this reaming barrel is equipped with evenly distributed's roller bit, it is equipped with the coring bit to get core cylinder side wall bottom, it is equipped with into the sediment and bores the end and let out the sediment and bore the end to get core barrel bottom. This drill bit carries out reaming work when getting the core, utilize double -deck hole heart location, prevents the axiality error of pile foundation hole site, sparingly frequently varies the time of drill bit, advances the sediment voluntarily, lets out the sediment, reduces workman intensity of labour.
Description
Technical field
The utility model belongs to building machinery field, particularly relates to a kind of drilling bit of rotary-digging drilling rig.
Background technology
Rotary drilling rig is the construction machinery of pore-forming operation in a kind of applicable building foundation engineering.Mainly be suitable for the soil layer constructions such as sand, cohesive soil, slity soil, be used widely in the multiple foundation basic constructions such as castinplace pile, diaphragm wall, underpin.
The drill bit of rotary drilling rig has a variety of, and conventional has reaming bit and coring bit.In traditional work progress, in the face of pile foundation hole diameter is when about 2.5m, both are separately constructions, and namely first use coring bit, rear reaming bit realizes the requirement of aperture and hole depth.This kind of construction technology construction is got up, the drill bit of the conversion rotary drilling rig that repeat, and makes constructor work quantitative change greatly, and converts the drill bit waste plenty of time of rotary drilling rig frequently, affects programming.
Summary of the invention
In order to overcome above-mentioned the deficiencies in the prior art part, the utility model provides a kind of drilling bit of rotary-digging drilling rig, and this drill bit carries out reaming work while getting core, the double-hole heart is utilized to locate, prevent the coaxiality error of pile foundation hole position, save the time of frequent changes drill bit, reduce labor strength.
For achieving the above object, the utility model adopts following technical scheme: a kind of drilling bit of rotary-digging drilling rig, comprise drill main body, drill main body comprises reaming cylindrical shell and coring tube body, reaming cylindrical shell and coring tube body are by being welded to connect, the upper end of reaming cylindrical shell is provided with drill rod connecting device, the cylindrical sidewall of reaming cylindrical shell is provided with the hobboing cutter of reaming, the sidewall bottom of this reaming cylindrical shell is provided with equally distributed rock bit, coring bit is provided with bottom described coring tube body sidewall, be provided with slag input bottom described coring tube body to bore the end and let out the slag brill end, slag input is bored the end and is let out slag input hinged seat that slag bores the end by being arranged on and letting out slag and bore bottom hinge and connect, let out slag bore the end by be arranged near coring tube body sidewall let out slag hinged seat and coring tube body sidewall is hinged, coring tube body inside wall is provided with strikes out mechanism, aforementioned slag of letting out bores the end and is provided with and the hook ring struck out mechanism and coordinate, the side wall upper part of coring tube body is provided with opening.
In technique scheme, described strike out mechanism comprise strike out, strike out bar, strike out hinged seat, return springs, described striking out is connected with the inside wall of coring tube body by striking out hinged seat, strike out one end to coordinate with hook ring, the other end is hinged with strikes out bar, strike out bar through reaming cylindrical shell, reaming cylindrical shell is provided with return springs with the junction of striking out bar.
In technique scheme, described return springs is spring.
The beneficial effects of the utility model are: this drill bit carries out reaming work getting core while, utilize the double-hole heart to locate, prevent the coaxiality error of pile foundation hole position, save the time of frequent changes drill bit, automatic slag input, let out slag, reduce labor strength.
Accompanying drawing explanation
Fig. 1 is perspective view of the present utility model.
Fig. 2 is cross-sectional view of the present utility model.
Fig. 3 is cross-section front view.
Wherein: 1. reaming cylindrical shell, 2. coring tube body, 3. hobboing cutter, 4. rock bit, 5. coring bit, 6. the end, is bored in slag input, 7. lets out slag and bores the end, 8. slag input hinged seat, 9. let out slag hinged seat, 10. hook ring, 11. strike out, and 12. strike out bar, and 13. strike out hinged seat, 14. springs, 15. openings.
Detailed description of the invention
Below in conjunction with drawings and the specific embodiments, the utility model is described in further detail.
As Fig. 1, a kind of drilling bit of rotary-digging drilling rig shown in Fig. 2 and Fig. 3, comprise drill main body, drill main body is split type, drill main body comprises reaming cylindrical shell 1 and coring tube body 2, reaming cylindrical shell 1 and coring tube body 2 are by being welded to connect, the upper end of reaming cylindrical shell 1 is provided with drill rod connecting device, the cylindrical sidewall of reaming cylindrical shell 1 is provided with the hobboing cutter 3 of reaming, the sidewall bottom of this reaming cylindrical shell 1 is provided with equally distributed rock bit 4, described coring tube body 2 sidewall bottom is provided with coring bit 5, be provided with slag input bottom described coring tube body 2 to bore the end 6 and let out the slag brill end 7, slag input is bored the end 6 and is let out slag input hinged seat 8 that slag bores the end 7 by being arranged on to bore the end 7 hinged with letting out slag, let out slag to bore the end 7 and let out the side walls hinged of slag hinged seat 9 and coring tube body 2 by being arranged near cylinder lateral wall, coring tube body 2 inside wall is provided with strikes out mechanism, aforementioned slag of letting out bores the end 7 and is provided with and the hook ring 10 struck out mechanism and coordinate, the side wall upper part of coring tube body 2 is provided with opening 15, arranging opening 15 is to prevent drill bit in rotary course after slag input too much, rock or earth extruding enter in drilling bucket.This drill bit carries out reaming work while getting core, utilizes the double-hole heart to locate, prevents the coaxiality error of pile foundation hole position, saves the time of frequent changes drill bit, automatic slag input, lets out slag, reduces labor strength.
In technique scheme, described mechanism of striking out comprises and strikes out 11, strikes out bar 12, strikes out hinged seat 13 and return springs, describedly strike out 11 and be connected with the inside wall of coring tube body 2 by striking out hinged seat 13, strike out 11 one end to coordinate with hook ring 10, the other end is hinged with strikes out bar 12, strike out bar 12 through reaming cylindrical shell 1, reaming cylindrical shell 1 is provided with return springs with the junction of striking out bar 12.
In technique scheme, described return springs is spring 14.
When using drill bit of the present utility model, when rotary drilling rig by drill bit start boring, in boring procedure, coring bit carries out headwork, and hobboing cutter 3 and rock bit 4 carry out reaming, slag input bore the end 6 holed after earth and rock block extruding to varus, the earth got out and rock fragment enter in drill bit by the slag input brill end 6 of varus, and when slag input amount reaches capacity, the rock fragment and the earth that enter drill bit are released by the opening 15 on coring tube body 2.Now, drill bit is needed to propose from pit foundation hole, the slag input of varus is bored the end 6 and is pushed down by the earth in drill bit and rock fragment, then rotary drilling rig rotates to an angle, again unit head is declined, when the base plate of unit head drops to drill bit position, can withstand and strike out bar 12, strike out bar 12 to move downward, strike out 11 thus separate with hook ring 10, now let out the slag brill end 8 to open, earth in drill bit and rock fragment are come down in torrents away, then unit head is upwards promoted, drill bit is put into ground, let out slag to bore the end 8 and close, hook ring 10 with strike out 11 and again engage, spring 14 will be struck out bar 12 and tighten up, prevent from striking out bar 12 to move downward by gravity and make to strike out 11 and be separated with hook ring 10.
The above; be only the utility model preferably detailed description of the invention; but protection domain of the present utility model is not limited thereto; anyly be familiar with those skilled in the art in the technical scope that the utility model discloses; the change that can expect easily or replacement, all should be encompassed within protection domain of the present utility model.
Claims (3)
1. a drilling bit of rotary-digging drilling rig, it is characterized in that: comprise drill main body, drill main body comprises reaming cylindrical shell and coring tube body, reaming cylindrical shell and coring tube body are by being welded to connect, the upper end of reaming cylindrical shell is provided with drill rod connecting device, the cylindrical sidewall of reaming cylindrical shell is provided with the hobboing cutter of reaming, the sidewall bottom of this reaming cylindrical shell is provided with equally distributed rock bit, coring bit is provided with bottom described coring tube body sidewall, be provided with slag input bottom described coring tube body to bore the end and let out the slag brill end, slag input is bored the end and is let out slag input hinged seat that slag bores the end by being arranged on and letting out slag and bore bottom hinge and connect, let out slag bore the end by be arranged near coring tube body sidewall let out slag hinged seat and coring tube body sidewall is hinged, coring tube body inside wall is provided with strikes out mechanism, aforementioned slag of letting out bores the end and is provided with and the hook ring struck out mechanism and coordinate, the side wall upper part of coring tube body is provided with opening.
2. a kind of drilling bit of rotary-digging drilling rig according to claim 1, it is characterized in that: described in strike out mechanism and comprise and strike out, strike out bar, strike out hinged seat and return springs, described striking out is connected with the inside wall of coring tube body by striking out hinged seat, strike out one end to coordinate with hook ring, the other end is hinged with strikes out bar, strike out bar through reaming cylindrical shell, return springs is located at reaming cylindrical shell and the junction of striking out bar.
3. a kind of drilling bit of rotary-digging drilling rig according to claim 2, is characterized in that: described return springs is spring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520683462.8U CN205012953U (en) | 2015-09-07 | 2015-09-07 | Drill bit of rotary drilling rig |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520683462.8U CN205012953U (en) | 2015-09-07 | 2015-09-07 | Drill bit of rotary drilling rig |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205012953U true CN205012953U (en) | 2016-02-03 |
Family
ID=55211562
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520683462.8U Expired - Fee Related CN205012953U (en) | 2015-09-07 | 2015-09-07 | Drill bit of rotary drilling rig |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205012953U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105735901A (en) * | 2016-05-06 | 2016-07-06 | 中铁大桥局集团第四工程有限公司 | Combinative drilling tool of rotary excavating drilling machine |
| CN106014262A (en) * | 2016-06-08 | 2016-10-12 | 叶晓明 | Non-circular impact-reaming device for bored pile and reaming method of non-circular impact-reaming device |
| CN106639888A (en) * | 2016-10-25 | 2017-05-10 | 北京中车重工机械有限公司 | Rotary drilling rig and drilling bucket assembly thereof |
| CN107842314A (en) * | 2017-11-14 | 2018-03-27 | 中国煤炭地质总局水文地质局 | A kind of heavy caliber reaming bit and large-diameter well drilling method |
| EP3517727A1 (en) * | 2018-01-24 | 2019-07-31 | BAUER Maschinen GmbH | Core-drilling tool |
-
2015
- 2015-09-07 CN CN201520683462.8U patent/CN205012953U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105735901A (en) * | 2016-05-06 | 2016-07-06 | 中铁大桥局集团第四工程有限公司 | Combinative drilling tool of rotary excavating drilling machine |
| CN106014262A (en) * | 2016-06-08 | 2016-10-12 | 叶晓明 | Non-circular impact-reaming device for bored pile and reaming method of non-circular impact-reaming device |
| CN106014262B (en) * | 2016-06-08 | 2018-06-29 | 叶晓明 | A kind of expanding method of the non-circular impact Counterboring apparatus of drilled pile |
| CN106639888A (en) * | 2016-10-25 | 2017-05-10 | 北京中车重工机械有限公司 | Rotary drilling rig and drilling bucket assembly thereof |
| CN107842314A (en) * | 2017-11-14 | 2018-03-27 | 中国煤炭地质总局水文地质局 | A kind of heavy caliber reaming bit and large-diameter well drilling method |
| EP3517727A1 (en) * | 2018-01-24 | 2019-07-31 | BAUER Maschinen GmbH | Core-drilling tool |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160203 Termination date: 20180907 |