CN203271620U - Combined drill rod - Google Patents
Combined drill rod Download PDFInfo
- Publication number
- CN203271620U CN203271620U CN 201320115614 CN201320115614U CN203271620U CN 203271620 U CN203271620 U CN 203271620U CN 201320115614 CN201320115614 CN 201320115614 CN 201320115614 U CN201320115614 U CN 201320115614U CN 203271620 U CN203271620 U CN 203271620U
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- CN
- China
- Prior art keywords
- blades
- vanelets
- drilling rod
- spiral vane
- small
- 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.)
- Withdrawn - After Issue
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Abstract
A combined drill rod is formed by multiple unit drill rods; each unit drill rod comprises a hollow rod body, spiral blades and small blades; the unit drill rod is characterized in that one or more spiral blades and one or more groups of small blades can be arranged, and are arranged on the outer wall of the hollow rod body by raidally surrounding the hollow rod body; the small blades are positioned above the spiral blades; when the multiple spiral blades or the multiple groups of small blades are arranged, the small and spiral blades are arranged in a crossing mode from top to bottom; 2, 3 or 4 small blades can be arranged in each group of small blades, and are radially symmetrical along the hollow rod body or arranged in equal angles at intervals; the blade faces of the spiral blades and the wing faces of the small blades are inclined towards the same direction; the free ends of the spiral and small blades are all the arc faces coaxial with the hollow rod body; and net-like wear-resistant layers are arranged on the arc faces. The combined drill rod has the characteristics of stable drilling, uniform stirring, high wear-resistant property of the blades and the like, thus improving the drilling efficiency of a drill rig and improving the holing or grooving quality of the drilling.
Description
Technical field
The combined drilling rod that the utility model relates to the stratum brill pick of a kind of suitable sand soil and stirs, extensively urban architecture, subway foundation pit are gone along with sb. to guard him and the construction of diaphragm wall needs such as dyke seepage control and reinforced soft soil ground.
Background technology
at the highrise building underground installation, the Deep Foundation Pit of Metro Stations excavating, in the process of construction of river dyke antiseepage processing and Soft Soil reinforcing improvement etc., because colonnade formula soil water mud wall engineering method (being the SMW engineering method) has sealing, bear the water and soil side pressure, bear the function of drawing vertical load in anchor or adverse construction method, compare with the foundation pit enclosure structure of other patterns, adopting the SMW engineering method to build underground retaining wall, to have a construction noise little, little to surrounding environment influence, it is good that adjacent pile body overlaps barrier performance fully, environmental protection and energy saving, without the construction public hazards, duration is short, the advantages such as reduced investment and soil layer are applied widely, thereby used in a large number and promoted in modern underground foundation construction.
Drilling rod coordinates sandy soil in the prior art, use SMW engineering method rig when the pick construction is bored on the sandy soil stratum, the general drilling rod that adopts the large blade of pure screw type to consist of coordinates the operation of sand soil drilling tool, soil layer can occur bores pick and stirs quality problems inhomogeneous, that serious wear easily appears in the large blade of spirality, directly affect construction quality and operating efficiency, and cause drilling quality unstable, directly affect the construction quality of diaphragm wall curtain wall.
Summary of the invention
The purpose of this utility model is according to the deficiencies in the prior art, provide a kind of bore pick stable and stir, operating efficiency is high and screw type blade and the high combined drilling rod of vanelets abrasion resistance.
The utility model is achieved through the following technical solutions:
A kind of combined drilling rod is comprised of a plurality of unit drilling rod, and the unit drilling rod comprises hollow lever, spiral vane, vanelets, male joint and female joint; It is characterized in that described spiral vane has one or more pieces, described vanelets has one or more groups, and they are arranged on its outer wall in radial mode around hollow lever; Described each group vanelets can be 2,3 or 4, and arranges along hollow lever radial symmetric or equal angles interval; The two ends up and down of described hollow lever are respectively equipped with male joint and female joint.
The utility model can be that described vanelets (3) is positioned at above described spiral vane (2).
The utility model can also be, described spiral vane (2) is multi-disc and vanelets (3) during for many groups, wherein vanelets (3) and spiral vane (2) arranged crosswise from top to bottom.
The utility model can also be that the blade face of described spiral vane and the aerofoil of vanelets tilt towards same direction.
The utility model can also be that the free end of described spiral vane and vanelets is the arc surface with the hollow lever concentric, is equipped with netted wearing layer on this arc surface.
The combined drilling rod of the utility model has following beneficial effect:
1) bore pick stable and stir, operating efficiency is high;
2) spiral vane and vanelets abrasion resistance are high;
3) effectively improve the efficiency of construction of auger in the pick of chiltern earth boring auger, improve the surface quality of pore-forming or grooving, extend the application life of drilling rod.
Description of drawings
Fig. 1 is the perspective view of the combined drilling rod of the utility model;
Fig. 2 is the front view of Fig. 1.
The specific embodiment
Described embodiment is further described the utility model below in conjunction with accompanying drawing.
As depicted in figs. 1 and 2, a kind of combined drilling rod is comprised of a plurality of unit drilling rod, and the unit drilling rod comprises hollow lever 1, spiral vane 2, vanelets 3, male joint 4 and female joint 5; It is characterized in that described spiral vane 2 has one or more pieces, described vanelets 3 has one or more groups, and they are arranged on its outer wall in radial mode around hollow rods 1, and wherein said leaflet 3 is positioned at described spiral vane 2 tops; Described spiral vane 2 is multi-disc and vanelets 3 during for many groups, wherein vanelets 3 and spiral vane 2 arranged crosswise from top to bottom; Described each group vanelets 3 can be 2,3 or 4, and arranges along hollow lever 1 radial symmetric or equal angles interval; The blade face 22 of described spiral vane 2 and the aerofoil 32 of vanelets 3 tilt towards a direction; The two ends up and down of described hollow lever 1 are respectively equipped with male joint 4 and female joint 5, can connect respectively female joint 5 and the male joint 4 of other unit drilling rods, and a plurality of unit drilling rod connects into certain-length to reach the brill pick degree of depth of construction requirement; The free end 23,33 of described spiral vane 2 and vanelets 3 is the arc surface with hollow lever 1 concentric, be equipped with netted wearing layer 231,331 on this arc surface, this netted wearing layer 231, hardness 〉=HRC48 of 331, the welding rod built-up welding that employing has higher hardness and anti-wear performance forms, as contain tungsten, chromium, molybdenum, vanadium or their combined alloy more than two kinds and two kinds the higher hardness hardfacing electrode arranged, can effectively slow down spiral vane 2 and vanelets 3 free ends 23,33 wearing and tearing.
The combined drilling rod of the utility model have the pick of boring stable and stir, operating efficiency is high and spiral vane and vanelets abrasion resistance high, effectively improve auger in the efficiency of construction of chiltern earth boring auger pick, improve the surface quality of pore-forming or grooving, extend the application life of drilling rod.
Claims (5)
1. a combined drilling rod, be comprised of a plurality of unit drilling rod, and the unit drilling rod comprises hollow lever (1), spiral vane (2), vanelets (3), male joint (4) and female joint (5); It is characterized in that described spiral vane (2) has one or more pieces, described vanelets (3) has one or more groups, they all are arranged on its outer wall in radial mode around hollow lever (1), described each group vanelets (3) is 2,3 or 4, and arranges along hollow lever (1) radial symmetric or equal angles interval; The two ends up and down of described hollow lever (1) are respectively equipped with male joint (4) and female joint (5).
2. combined drilling rod according to claim 1, is characterized in that described vanelets (3) is positioned at above described spiral vane (2).
3. combined drilling rod according to claim 1 is characterized in that described spiral vane (2) for multi-disc and vanelets (3) during for many groups, wherein vanelets (3) and spiral vane (2) arranged crosswise from top to bottom.
4. combined drilling rod according to claim 1, is characterized in that the blade face (22) of described spiral vane (2) and the aerofoil (32) of vanelets (3) tilt towards same direction.
5. combined drilling rod according to claim 1, the free end (23,33) that it is characterized in that described spiral vane (2) and vanelets (3) is the arc surface with hollow lever (1) concentric, is equipped with netted wearing layer (231,331) on this arc surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320115614 CN203271620U (en) | 2013-03-14 | 2013-03-14 | Combined drill rod |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320115614 CN203271620U (en) | 2013-03-14 | 2013-03-14 | Combined drill rod |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203271620U true CN203271620U (en) | 2013-11-06 |
Family
ID=49502058
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320115614 Withdrawn - After Issue CN203271620U (en) | 2013-03-14 | 2013-03-14 | Combined drill rod |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203271620U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104453710A (en) * | 2014-11-24 | 2015-03-25 | 平顶山市铁福来机电设备有限公司 | Drilling equipment for coal seam large-diameter boring construction |
| CN105484680A (en) * | 2015-12-15 | 2016-04-13 | 荣昌精密机械(苏州)有限公司 | Combined drill rod applied to spiral drilling machine |
| CN106761473A (en) * | 2016-12-29 | 2017-05-31 | 上海广大基础工程有限公司 | A kind of drilling rod |
| CN110094167A (en) * | 2019-06-20 | 2019-08-06 | 吕梁学院 | A kind of novel mechanical rotation Counterboring apparatus |
-
2013
- 2013-03-14 CN CN 201320115614 patent/CN203271620U/en not_active Withdrawn - After Issue
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104453710A (en) * | 2014-11-24 | 2015-03-25 | 平顶山市铁福来机电设备有限公司 | Drilling equipment for coal seam large-diameter boring construction |
| CN104453710B (en) * | 2014-11-24 | 2016-08-24 | 河南铁福来装备制造股份有限公司 | A kind of drilling equipment for drilling of coal seam large-diameter borehole construction |
| CN105484680A (en) * | 2015-12-15 | 2016-04-13 | 荣昌精密机械(苏州)有限公司 | Combined drill rod applied to spiral drilling machine |
| CN105484680B (en) * | 2015-12-15 | 2017-12-05 | 温州聚龙知识产权有限公司 | A kind of combined drill rod applied to twist bit |
| CN106761473A (en) * | 2016-12-29 | 2017-05-31 | 上海广大基础工程有限公司 | A kind of drilling rod |
| CN110094167A (en) * | 2019-06-20 | 2019-08-06 | 吕梁学院 | A kind of novel mechanical rotation Counterboring apparatus |
| CN110094167B (en) * | 2019-06-20 | 2024-02-09 | 吕梁学院 | Novel mechanical rotary reaming device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20131106 Effective date of abandoning: 20141113 |
|
| C20 | Patent right or utility model deemed to be abandoned or is abandoned |