CN105604488B - A kind of cutting tooth type drill bit - Google Patents
A kind of cutting tooth type drill bit Download PDFInfo
- Publication number
- CN105604488B CN105604488B CN201610141964.7A CN201610141964A CN105604488B CN 105604488 B CN105604488 B CN 105604488B CN 201610141964 A CN201610141964 A CN 201610141964A CN 105604488 B CN105604488 B CN 105604488B
- Authority
- CN
- China
- Prior art keywords
- tooth
- disk
- fixed
- brill
- reamer
- 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.)
- Active
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Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B10/00—Drill bits
- E21B10/26—Drill bits with leading portion, i.e. drill bits with a pilot cutter; Drill bits for enlarging the borehole, e.g. reamers
- E21B10/32—Drill bits with leading portion, i.e. drill bits with a pilot cutter; Drill bits for enlarging the borehole, e.g. reamers with expansible cutting tools
- E21B10/325—Drill bits with leading portion, i.e. drill bits with a pilot cutter; Drill bits for enlarging the borehole, e.g. reamers with expansible cutting tools the cutter being shifted by a spring mechanism
Abstract
The invention discloses a kind of cutting tooth type drill bit, including drilling pipe, the bottom of the drilling pipe is fixed with fixed disk, brill disk is fixed with the fixed disk, the brill disk is provided with fixed brill tooth, and the outer peripheral edge for boring disk is also hinged with reamer tooth, spring is provided between the reamer tooth and brill disk.The present invention increases replaceable cutting tooth type reamer tooth on disk is bored, and reamer tooth opens after hard stone is run into, angled with former fixed brill tooth; strengthen broken rock dynamics, protect former fixed brill tooth, while reamer tooth can be changed independently upon wear; the overall wearability for improving drill bit, saves cost.
Description
Technical field
Technical field of building construction of the present invention, and in particular to cutting tooth type drill bit.
Background technology
Existing cutting tooth type drill bit, tooth is bored to be fixed, drill bit runs into bulk gravel or hard soil during soil body rotary digging
Easily snapped off during body, and once brill tooth in part fractures, other wear rates for boring teeth can increase significantly, be unfavorable for cost control.
The content of the invention
The technical problems to be solved by the invention are just to provide a kind of cutting tooth type drill bit, suitable for rubble and build dregs body
Excavate, tooth is bored in effectively protection, reduces the wear rate for boring tooth.
In order to solve the above technical problems, the present invention adopts the following technical scheme that：A kind of cutting tooth type drill bit, including drilling pipe, institute
The bottom for stating drilling pipe is fixed with fixed disk, and brill disk is fixed with the fixed disk, and the brill disk is provided with fixed brill tooth, the brill
The outer peripheral edge of disk is also hinged with reamer tooth, and spring is provided between the reamer tooth and brill disk.
Preferably, the brill disk is circumferentially with two covering of the fan portions along fixed disk, one of them of the covering of the fan portion is circumferential
Side is provided with installing plate, and the installing plate, which favours, bores the setting of disk plane, and the installing plate in two covering of the fan portions is on fixed disk
Circumferentially-spaced 180 degree set and incline direction on the contrary, the fixed brill tooth include along the distribution of installing plate length direction several
Fixed drill bit.
Preferably, the fixed disk center is provided with the newel with two covering of the fan portion one, the newel is provided with
Fixed drill bit.
Preferably, the reamer tooth is located at covering of the fan portion outer peripheral edge, the reamer tooth in two covering of the fan portions is in fixed disk
Upper circumferentially-spaced 180 degree is set.
Preferably, the brill disk is vertically and fixedly provided with side plate in reamer tooth both sides, fixed spiral shell is provided between biside plate
Bolt, the reamer tooth are rotatably connected on fixing bolt.
Preferably, the reamer tooth is provided with least two reaming bits.
Preferably, being additionally provided with rotary digging casing on the outside of the drilling pipe, the rotary digging casing bottom is circumferentially arranged with cutting tooth.
The technical solution adopted by the present invention, increase replaceable cutting tooth type reamer tooth on disk is bored, after hard stone is run into
Reamer tooth opens, angled with former fixed brill tooth, strengthens broken rock dynamics, protects former fixed brill tooth, while reamer tooth
It can independently change upon wear, the overall wearability for improving drill bit, save cost.
Brief description of the drawings
The invention will be further described with reference to the accompanying drawings and detailed description：
Fig. 1 is the structural representation of the present invention；
Fig. 2 is the cross-sectional view for boring disk；
Fig. 3 is fixed disk bottom surface structure schematic diagram；
Fig. 4 is reamer tooth operation principle comparison diagram.
Embodiment
As shown in Figure 1 to Figure 3, a kind of cutting tooth type drill bit, including drilling pipe 10, the bottom of the drilling pipe 10 are fixed with fixed disk
11, it is fixed with the fixed disk 11 and bores disk 12, the brill disk 12 is provided with fixed brill tooth 13.The brill disk 12 is all along fixed disk
Installing plate is provided with to one of them circumferential side provided with two covering of the fan portions, the covering of the fan portion, the installing plate favours brill
Disk plane is set, and circumferentially-spaced 180 degree is set the installing plate in two covering of the fan portions on fixed disk and incline direction is on the contrary, described
Fixed brill tooth includes several fixed drill bits being distributed along installing plate length direction.The fixed disk center is provided with and two covering of the fans
The newel of portion's one, the newel are provided with fixed drill bit.
Further, on the basis of said structure, replaceable cutting tooth type reamer tooth 16, reamer are increased on disk is bored
Tooth 16 is hinged on the outer peripheral edge for boring disk, and spring 17 is provided between the reamer tooth 16 and brill disk 12.The reamer tooth 16 is set
In the reamer tooth on covering of the fan portion outer peripheral edge, two covering of the fan portions, circumferentially-spaced 180 degree is set on fixed disk.The brill disk 12 exists
Reamer tooth both sides are vertically and fixedly provided with side plate 14, and fixing bolt 15 is provided between biside plate, and the reamer tooth 16, which rotates, to be connected
It is connected on fixing bolt 15.The reamer tooth is provided with least two reaming bits.Rotary digging casing is additionally provided with the outside of the drilling pipe
2, the rotary digging casing bottom is circumferentially arranged with cutting tooth 21.Assuming that the operating angle of former fixed brill tooth is 40 ° of ＜, reaming is designed
It is 20 °+5 ° to bore and bore tooth counterclockwise angle difference with original after tooth opens, and when low pressure produces mutation, machine includes opening, from former drill bit bottom
Portion stretches out new brill tooth and constructed, and bores tooth and stretches out outside casing；Drill bit is lifted up, the reamer tooth of opening is in casing lower edge
Pressure under re-close,
As shown in figure 4, when reamer tooth lower compression, machine tug, which is closed, opens, and reamer tooth opens under spring force,
Periphery catalase construction is carried out prior to internal fixed brill tooth, plays a part of the internal fixed brill tooth of protection；When drill bit is from rotary digging
When being proposed in casing, rotary digging casing bottom applies the extruding force to inner side, spring contraction to reamer tooth, and machine tug is closed, reaming
Tooth is bored to re-close.
Claims (1)
1. a kind of cutting tooth type drill bit, including drilling pipe, the bottom of the drilling pipe is fixed with fixed disk, and brill is fixed with the fixed disk
Disk, the brill disk are provided with fixed brill tooth, it is characterised in that：The outer peripheral edge for boring disk is also hinged with reamer tooth, the expansion
Spring is provided between hole drill tooth and brill disk, the brill disk is circumferentially with two covering of the fan portions along fixed disk, and the covering of the fan portion is wherein
One circumferential side is provided with installing plate, and the installing plate, which favours, bores the setting of disk plane, and the installing plate in two covering of the fan portions exists
Circumferentially-spaced 180 degree is set on fixed disk and incline direction is on the contrary, the fixed brill tooth includes being distributed along installing plate length direction
Several fixed drill bits, the fixed disk center is provided with the newel with two covering of the fan portions one, and the newel is provided with
Fixed drill bit, the reamer tooth are located at covering of the fan portion outer peripheral edge, and the reamer tooth in two covering of the fan portions is on fixed disk between circumference
Set every 180 degree, the brill disk is vertically and fixedly provided with side plate in reamer tooth both sides, and fixing bolt, institute are provided between biside plate
State reamer tooth to be rotatably connected on fixing bolt, the reamer tooth is provided with least two reaming bits, the drilling pipe outside
Rotary digging casing is additionally provided with, the rotary digging casing bottom is circumferentially arranged with cutting tooth；When reamer tooth lower compression, reamer tooth
Opened under spring force, periphery catalase construction is carried out prior to internal fixed brill tooth, play the internal fixed brill tooth of protection
Effect, when drill bit proposes from rotary digging casing, rotary digging casing bottom applies the extruding force to inner side to reamer tooth, and spring is received
Contracting, reamer tooth re-close.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610141964.7A CN105604488B (en) | 2016-03-12 | 2016-03-12 | A kind of cutting tooth type drill bit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610141964.7A CN105604488B (en) | 2016-03-12 | 2016-03-12 | A kind of cutting tooth type drill bit |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105604488A CN105604488A (en) | 2016-05-25 |
| CN105604488B true CN105604488B (en) | 2017-12-29 |
Family
ID=55984774
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610141964.7A Active CN105604488B (en) | 2016-03-12 | 2016-03-12 | A kind of cutting tooth type drill bit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105604488B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111485828A (en) * | 2020-04-30 | 2020-08-04 | 章警帅 | Piling equipment for building |
| CN112267839A (en) * | 2020-11-13 | 2021-01-26 | 中铁四局集团建筑工程有限公司 | Drill bit for rotary drilling rig |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2026482C1 (en) * | 1990-01-25 | 1995-01-09 | Институт горного дела Дальневосточного отделения РАН | Drilling device |
| CN201521250U (en) * | 2009-09-28 | 2010-07-07 | 孟凡友 | Rotary drilling bit for rotary drilling rig |
| CN202370432U (en) * | 2011-08-12 | 2012-08-08 | 北京市三一重机有限公司 | Rotary drilling tool and rotary drilling machine with the same |
| CN103967419B (en) * | 2014-04-24 | 2017-01-25 | 北京市三一重机有限公司 | Drilling bucket and rotary drilling rig |
| CN205558813U (en) * | 2016-03-12 | 2016-09-07 | 中天建设集团有限公司 | Pick type drill bit |
-
2016
- 2016-03-12 CN CN201610141964.7A patent/CN105604488B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN105604488A (en) | 2016-05-25 |
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