CN209308636U - A kind of rotary digging drill bit cutting drilling mechanism - Google Patents
A kind of rotary digging drill bit cutting drilling mechanism Download PDFInfo
- Publication number
- CN209308636U CN209308636U CN201821857482.2U CN201821857482U CN209308636U CN 209308636 U CN209308636 U CN 209308636U CN 201821857482 U CN201821857482 U CN 201821857482U CN 209308636 U CN209308636 U CN 209308636U
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- inserted seat
- seat board
- outer bottom
- cutting
- drill bit
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Abstract
The utility model discloses rotary digging drill bits to cut drilling mechanism, including Outer Bottom Plating, two pieces of inserted seat boards and several picks, the head and the tail of the two inserted seat boards successively connect, the upper surface of two toothholder plates is fixedly connected with Outer Bottom Plating, the lower end surface sequence of the toothholder plate is arranged with several picks, the top for several picks being arranged successively constitutes convex surface cutting cambered surface directed downwardly, and the most vertex of the cutting cambered surface constitutes anchor point.It includes 1. and solves the problems, such as that the quasi- heart of positioning is easily damaged during the work time, solve the problems, such as maintenance difficult, save cost；2. being constituted anchor point with the most vertex of two cutting cambered surfaces, double anchor points, more stable, not inclined hole in drilling process are constituted；3. the centre of liang inserted seat board is dented, effectively dispersion turning power, reduces and use failure, improve cutting tool service life.The utility model application piling machinery equipment.
Description
Technical field
The utility model relates to piling machinery equipment, cut drilling mechanism more particularly to a kind of rotary digging drill bit.
Background technique
The cutting drilling section of traditional rotary digging drill bit is mainly by revolution Outer Bottom Plating 1a, inserted seat board 2a, cutting tooth 3a, fixed
The composition such as level heart 4a.The quasi- heart of positioning on the market is mainly the structures such as three parted hairs, four parted hairs at present, due to positioning quasi- center portion 4a
It is higher than cutting tooth 3a, therefore can first bury, suffered power is very big, the failure conditions such as rupture, broken teeth often occurs, and hinder
The big influence rate of penetration of power.
Utility model content
The purpose of this utility model is to provide a kind of rotary digging drill bits to cut drilling mechanism, is existed with solving the quasi- heart of above-mentioned positioning
In drilling process, stress is excessive and the case where often damage, reduce using failure, improve the service life of drill bit.
The technical scheme adopted by the utility model is a kind of rotary digging drill bit cuts drilling mechanism, including Outer Bottom Plating, two pieces
The head and the tail of inserted seat board and several picks, the two inserted seat boards successively connect, the upper surface of two toothholder plates and Outer Bottom Plating
It is fixedly connected, the lower end surface sequence of the toothholder plate is arranged with several picks, the top structure for several picks being arranged successively
At convex surface cutting cambered surface directed downwardly, the most vertex of the cutting cambered surface constitutes anchor point.
It advanced optimizes, the lower end surface of the inserted seat board is arcwall face, and the arcwall face is consistent with cutting cambered surface arc.
It advanced optimizes, the inclination connection of the inserted seat board and Outer Bottom Plating, the inclined surface of the inserted seat board is away from rotation
Turn direction.
The utility model has the beneficial effects that cancelling the quasi- heart of drill baseplate interfix, with the most vertex structure of two cutting cambered surfaces
At anchor point, double anchor points are constituted.It has the advantage that
1. solving the problems, such as that the quasi- heart of traditional positioning is easily damaged during the work time, maintenance difficult is solved the problems, such as, save
Cost-saving；
2. is constituted anchor point with the most vertex of two cutting cambered surfaces, pair anchor points are constituted, it is more stable in drilling process, not partially
Hole；
3. the position of liang inserted seat board to connect is dented, effectively dispersion turning power, reduces and use failure, improve bite
Has service life.
Detailed description of the invention
The present invention will be further described with embodiment with reference to the accompanying drawing.
Fig. 1 is the structural schematic diagram of background technique；
Fig. 2 is the front view of the present embodiment；
Fig. 3 is the bottom view of the present embodiment.
Specific embodiment
A kind of rotary digging drill bit cutting drilling mechanism as shown in Figures 2 and 3, including 1, two piece of inserted seat board 2 of Outer Bottom Plating, two
The head and the tail of inserted seat board 2 successively connect, and the upper surface of two inserted seat boards 2 is fixedly connected with Outer Bottom Plating 1, the lower end of inserted seat board 2
Face sequence arrangement is fixedly connected with several picks 3, and the increment for the pick 3 being arranged successively constitutes convex surface cutting cambered surface directed downwardly
31, the most vertex of cutting cambered surface 31 constitutes anchor point 32.
The quasi- heart of positioning among traditional drill baseplate is eliminated, anchor point is constituted with the most vertex of two cutting cambered surfaces 31
32, constitute anchor point 32.It has the advantage that
1. solving the problems, such as that the quasi- heart of positioning is easily damaged during the work time, solves the problems, such as maintenance difficult, save cost；
2. is constituted anchor point with the most vertex of two cutting cambered surfaces 31, pair anchor points 32 are constituted, it is more stable in drilling process, no
Inclined hole；
3. the position that liang inserted seat board 2 connects is dented, effectively dispersion turning power, reduces and use failure, improve bite
Has service life.
Further, the lower end surface of inserted seat board 2 is arcwall face, and arcwall face is consistent with cutting 31 arc of cambered surface.To make
3 extension elongation of pick of installation is consistent.
Further, two inserted seat boards 2 are curved panel, and the arcwall face of two toothholder plates 2 and direction of rotation are in the same direction.Into inserted
Seat board 2 is designed as arcwall face plate, during precession, effectively disperses the stress of inserted seat board 2, improves inserted seat board 2
Service life.
Further, inserted seat board 2 is connect with the inclination of Outer Bottom Plating 1, and the inclined surface of inserted seat board 2 deviates from direction of rotation.
Inserted seat board 2 uses inclined design with Outer Bottom Plating 1, optimizes the force way of inserted seat board 2, improves inserted 2 service life of seat board.
Certainly, the utility model is not limited to above embodiment, and those skilled in the art are without prejudice to originally
Equivalent deformation or replacement can be also made under the premise of utility model spirit, these equivalent variation or replacement are all contained in the application
In claim limited range.
Claims (3)
1. a kind of rotary digging drill bit cuts drilling mechanism, it is characterised in that: including Outer Bottom Plating (1), two pieces inserted seat board (2), two institutes
The head and the tail for stating inserted seat board (2) successively connect, and the upper surface of the two inserted seat boards (2) is fixedly connected with Outer Bottom Plating (1), described
The lower end surface sequence arrangement of inserted seat board (2) is fixedly connected with several picks, and the increment for the pick (3) being arranged successively is constituted
The most vertex of one convex surface cutting cambered surface (31) directed downwardly, cutting cambered surface (31) constitutes anchor point (32).
2. rotary digging drill bit according to claim 1 cuts drilling mechanism, it is characterised in that: under the inserted seat board (2)
End face is arcwall face, and the arcwall face is consistent with cutting cambered surface (31) arc.
3. rotary digging drill bit according to claim 1 or 2 cuts drilling mechanism, it is characterised in that: the inserted seat board (2) with
Outer Bottom Plating (1) inclination connection, the inclined surface of the inserted seat board (2) deviate from direction of rotation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821857482.2U CN209308636U (en) | 2018-11-12 | 2018-11-12 | A kind of rotary digging drill bit cutting drilling mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821857482.2U CN209308636U (en) | 2018-11-12 | 2018-11-12 | A kind of rotary digging drill bit cutting drilling mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209308636U true CN209308636U (en) | 2019-08-27 |
Family
ID=67672915
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821857482.2U Active CN209308636U (en) | 2018-11-12 | 2018-11-12 | A kind of rotary digging drill bit cutting drilling mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209308636U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
-
2018
- 2018-11-12 CN CN201821857482.2U patent/CN209308636U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP02 | Change in the address of a patent holder |
Address after: No. 1310, Kaiyuan Road, Changlong street, Changsha County, Changsha City, Hunan Province Patentee after: Changsha Golden Drill Machinery Co.,Ltd. Address before: 410000 Kaiyuan Road community, Xingsha street, Changsha County, Changsha City, Hunan Province Patentee before: Changsha Golden Drill Machinery Co.,Ltd. |
|
| CP02 | Change in the address of a patent holder |