CN202745735U - Integral type multi-edge drill stem - Google Patents
Integral type multi-edge drill stem Download PDFInfo
- Publication number
- CN202745735U CN202745735U CN 201220412448 CN201220412448U CN202745735U CN 202745735 U CN202745735 U CN 202745735U CN 201220412448 CN201220412448 CN 201220412448 CN 201220412448 U CN201220412448 U CN 201220412448U CN 202745735 U CN202745735 U CN 202745735U
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- China
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- drilling rod
- rod body
- excision
- monolithic
- many ribs
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Abstract
The utility model provides an integral type multi-edge drill stem which comprises a drill stem body with a circulating groove arranged inside, wherein quick union connectors are respectively arranged at two ends of the drill stem body, at least one spiral groove is arranged in the outer wall of the drill stem body, at least two severing faces are arranged on the surface of the drill stem body, and seamed edges are formed between the severing faces and annular faces on the outer wall of the drill stem body. The integral type multi-edge drill stem has the advantages of being smart in structural design, high in strength, smooth in inner hole slagging, big in gaps between annuluses, and high in powder discharging efficiency.
Description
Technical field
The utility model relates to coal mine machinery exploitation field of tool, relates in particular to a kind ofly for the soft projecting coal bed and staggered coal bed gas extraction drilling equipment for drilling of soft or hard under the coal mine, specifically refers to a kind of many ribs of monolithic drilling rod.
Background technology
At present, the working drilling rod form of coal mine down-hole drilling is varied, mainly contain round bur bar, auger stem and Three-edged drill stem etc., but round bur bar deslagging gap is too small, it is excessive that auger stem then consumes the rig moment of torsion, Three-edged drill stem then can not be derived cinder when bit freezing, therefore all can not realize deep well drilling.
Published Chinese invention patent " irregularly shaped multi-land notch groove drill rod ", patent publication No. is CN101566049A, scribed discontinuous helicla flute on common many ribs drilling rod surface, utilize the coal dust at the bottom of the seamed edge of drilling rod stirs the hole, utilize discontinuous helicla flute to assist deslagging, in the coal mine down-hole drilling construction, obtained good effect.But should abnormal shape cutting drilling rod be split-type structural, the joint at body of rod two ends and the body of rod peg graft by interference fit or friction welding together.Use contrast to find through producing with actual, the drilling rod manufacturing procedure of split-type structural is many, production efficiency is low, drilling rod intensity is lower, and no matter joint and the body of rod are the Split type drill rods that couples together by interference fit or friction welding mode, all have the problem of diameter of bore sudden change at joint and body of rod connecting portion, thereby cause fluid media (medium) poor in the trafficability characteristic of drill pipe bore, and have energy loss, reduced drilling efficiency.In addition, the tangent plane of irregularly shaped multi-land notch groove drill rod is the plane, exists annular clearance little, the inefficient shortcoming of row's powder.
Summary of the invention
The technical problems to be solved in the utility model is for the existing weak point of prior art, provides that a kind of structure design is ingenious, drilling rod intensity is high, the endoporus deslagging is unobstructed, and annular clearance is large, high a kind of many ribs of the monolithic drilling rod of row's powder efficient.
Technical solution of the present utility model is, following a kind of many ribs of monolithic drilling rod is provided, comprise that inside is provided with the drilling rod body of circulation groove, described drilling rod body two ends are respectively equipped with quick union, described drilling rod body outer wall is provided with and is no less than one helicla flute, described drilling rod body surface is provided with and is no less than two excision face, and described excision face forms seamed edge with drilling rod body outer wall ring surface.
Adopt the technical program, the utility model is set up excision face, and forms seamed edge with drilling rod body annular outer wall, and its structure has increased the annular space area of passage, and a plurality of seamed edges of drilling rod body can stir again the coal dust of hole bottom sediments simultaneously; The helicla flute that arranges has the effect of auxiliary deslagging, after a plurality of seamed edges of drilling rod body stir coal dust, and under the effect of scouring media, can be by helicla flute fast and effeciently outside the tap; Snap joint is set, two drilling rods of connection that can be easily and fast; In addition, all-in-one-piece jackrod structure has improved torsional strength and the flexural strength of drilling rod, has prolonged the application life of drilling rod.
As preferably, the quick union that described drilling rod body two ends arrange is respectively male joint and female joint, is provided with external screw thread in the described male joint, is provided with internal thread in the female joint.Adopt the technical program, be of value to two rapid abutting joint between the drilling rod, and have certain bonding strength.
As preferably, described helicla flute and internal and external screw thread all are directly to process on the drilling rod body, with the drilling rod body be the integral type structure.Adopt the technical program, be of value to the manufacturing procedure that reduces drilling rod, enhance productivity, reduce production costs.
As better, described excision face circularizes around drilling rod body outer wall, and is evenly arranged.Adopt the technical program, be of value to and reduce the vibrations that produce when rotating, rotary course is more steady.
As better, the excision degree of depth h1 of excision face middle part is greater than or equal to the excision degree of depth h2 of two ends joint area on the described drilling rod body outer wall.Adopt the technical program, be of value to increase annular space area of passage, can better stir again the coal dust of hole bottom sediments, be convenient to discharge.
As better, described spiral fluted cross section is circular arc or square; Described excision face is plane or curved surface; Described drilling rod body is different according to the excision face excision degree of depth, is divided into helicla flute continuity drilling rod or helicla flute discontinuity drilling rod body.Adopt the technical program, can select suitable spiral fluted cross sectional shape, excision face shape and the excision face excision degree of depth according to what of coal dust discharge rate in the actual working environment, can effectively reduce the processing cost of drilling rod, and the larger income of acquisition.
Description of drawings
Fig. 1 is the structural representation of the utility model drilling rod.
Fig. 2 is the sectional view at A-A place among Fig. 1.
Fig. 3 is that the utility model excision face is the jackrod structure schematic diagram (h1=h2) of curved surface.
Fig. 4 is the sectional view at A-A place among Fig. 3.
Fig. 5 is that the utility model helicla flute is square jackrod structure schematic diagram.
Fig. 6 is the sectional view at A-A place among Fig. 5.
Fig. 7 is that the utility model excision face is four jackrod structure schematic diagram.
Fig. 8 is the sectional view at A-A place among Fig. 7.
Fig. 9 is that the utility model helicla flute is the jackrod structure schematic diagram of bipitch helical line.
Figure 10 is the sectional view at A-A place among Fig. 9.
Figure 11 is the different jackrod structure schematic diagram of the utility model excision face excision degree of depth (h1〉h2).
Figure 12 is the sectional view at A-A place among Figure 11.
Figure 13 is the sectional view at B-B place among Figure 11.
Shown in the figure: 1, drilling rod body, 2, circulation groove, 3.1, male joint, 3.2, female joint, 4, helicla flute, 5, excision face, 6, seamed edge.
The specific embodiment
For ease of explanation, below in conjunction with accompanying drawing, a kind of many ribs of monolithic drilling rod of utility model is elaborated.
Embodiment: as shown in Fig. 1 and Fig. 2, a kind of many ribs of monolithic drilling rod, comprise that inside is provided with the drilling rod body 1 of circulation groove 2, described drilling rod body 1 two ends are respectively equipped with quick union, described drilling rod body 1 outer wall is provided with a helicla flute 4, described drilling rod body 1 surface is provided with three excision faces 5, described excision face 5 forms seamed edge 6 with drilling rod body 1 outer wall ring surface, the quick union that described drilling rod body 1 two ends arrange is respectively male joint 3.1 and female joint 3.2, be provided with external screw thread in the described male joint 3.1, be provided with internal thread in the female joint 3.2, described helicla flute 4 and in, external screw thread all is directly to process on drilling rod body 1, described excision face circularizes around drilling rod body 1 outer wall, and be evenly arranged, the excision degree of depth h1 of excision face 5 middle parts equals the excision degree of depth h2 of two ends joint area on described drilling rod body 1 outer wall, the cross section of described helicla flute 4 is circular arc, described excision face 5 is the plane, and described drilling rod body is helicla flute 4 continuity helix drilling rod bodies 1.
Above-described embodiment can also be done with down conversion, and as shown in Fig. 3 and Fig. 4, excision face 5 is curved surface; Shown in Fig. 5 and Fig. 6, described helicla flute cross section is square; Shown in Fig. 7 and Fig. 8, described drilling rod body 1 surface is provided with four excision faces 5; As shown in Fig. 9 and Figure 10, described drilling rod body 1 outer wall is provided with two helicla flutes 4; Shown in Figure 11, Figure 12 and Figure 13, described drilling rod body is helicla flute 4 discontinuity helix drilling rod bodies 1, and the excision degree of depth h1 of excision face 5 middle parts is greater than excision degree of depth h2 of two ends joint area etc. on described drilling rod body 1 outer wall.
The combinations thereof relation can be according to the working environment any combination of reality, just enumerate no longer one by one at this, main purpose is in order to reduce procedure, cut down finished cost, enhance productivity, can also well guarantee working strength of the present utility model simultaneously, and the excision face of setting up, and form seamed edge with drilling rod body annular outer wall, increased the annular space area of passage, effectively discharge coal dust, the monolithic construction design of drilling rod has improved torsional strength and the flexural strength of drilling rod, has prolonged the application life of drilling rod.
In the above-described embodiments, preferred forms of the present utility model is described, obviously, under inventive concept of the present utility model, still can make a lot of variations.At this, should illustrate that any change of making all will fall in the protection domain of the present utility model under inventive concept of the present utility model.
Claims (8)
1. many ribs of monolithic drilling rod, comprise that inside is provided with the drilling rod body (1) of circulation groove (2), it is characterized in that: described drilling rod body (1) two ends are respectively equipped with quick union, described drilling rod body (1) outer wall is provided with the helicla flute (4) that is no less than, described drilling rod body (1) surface is provided with the excision face (5) that is no less than two, and described excision face (5) forms seamed edge (6) with drilling rod body (1) outer wall ring surface.
2. many ribs of monolithic drilling rod according to claim 1, it is characterized in that: the quick union that described drilling rod body (1) two ends arrange is respectively male joint (3.1) and female joint (3.2), described male joint is provided with external screw thread on (3.1), and female joint is provided with internal thread on (3.2).
3. many ribs of monolithic drilling rod according to claim 1 and 2, it is characterized in that: described helicla flute (4) and internal and external screw thread all are directly to process on drilling rod body (1), with drilling rod body (1) be the integral type structure.
4. many ribs of monolithic drilling rod according to claim 1 is characterized in that: described excision face circularizes around drilling rod body (1) outer wall, and is evenly arranged.
5. many ribs of monolithic drilling rod according to claim 4, it is characterized in that: the excision degree of depth h1 of excision face (5) middle part is greater than or equal to the excision degree of depth h2 of two ends joint area on described drilling rod body (1) outer wall.
6. many ribs of monolithic drilling rod according to claim 3, it is characterized in that: the cross section of described helicla flute (4) is circular arc or square.
7. many ribs of monolithic drilling rod according to claim 4, it is characterized in that: described excision face (5) is plane or curved surface.
8. many ribs of monolithic drilling rod according to claim 4 is characterized in that: described drilling rod body is different according to excision face (5) the excision degree of depth, is divided into helicla flute (4) continuity drilling rod body (1) or helicla flute (4) discontinuity drilling rod body (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220412448 CN202745735U (en) | 2012-08-20 | 2012-08-20 | Integral type multi-edge drill stem |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220412448 CN202745735U (en) | 2012-08-20 | 2012-08-20 | Integral type multi-edge drill stem |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202745735U true CN202745735U (en) | 2013-02-20 |
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ID=47705152
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220412448 Expired - Fee Related CN202745735U (en) | 2012-08-20 | 2012-08-20 | Integral type multi-edge drill stem |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202745735U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102787812A (en) * | 2012-08-20 | 2012-11-21 | 山东九商工程机械有限公司 | Integral multi-prismatic drill pipe |
-
2012
- 2012-08-20 CN CN 201220412448 patent/CN202745735U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102787812A (en) * | 2012-08-20 | 2012-11-21 | 山东九商工程机械有限公司 | Integral multi-prismatic drill pipe |
| CN102787812B (en) * | 2012-08-20 | 2015-09-30 | 山东九商工程机械有限公司 | A kind of monolithic many ribs drilling rod |
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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: 20130220 Termination date: 20150820 |
|
| EXPY | Termination of patent right or utility model |