CN104389527B - Center structure of excavator drill rod - Google Patents
Center structure of excavator drill rod Download PDFInfo
- Publication number
- CN104389527B CN104389527B CN201410549343.3A CN201410549343A CN104389527B CN 104389527 B CN104389527 B CN 104389527B CN 201410549343 A CN201410549343 A CN 201410549343A CN 104389527 B CN104389527 B CN 104389527B
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- CN
- China
- Prior art keywords
- drilling rod
- driving tube
- section
- triangle
- driving
- Prior art date
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Classifications
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- 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
- E21B17/00—Drilling rods or pipes; Flexible drill strings; Kellies; Drill collars; Sucker rods; Cables; Casings; Tubings
Abstract
The invention relates to a center structure of an excavator drill rod. The excavator drill rod comprises n sections of main rods and a section of a core rod, wherein each section of the main rods comprises a drill rod and a driving pipe connected with each other; each section of the driving pipes is provided with a driving pipe inner key in the length direction thereof; strip outer keys as long as the drill rods are arranged outside the second to nth drill rods and the core rod in the length direction; and drill rod-centered key bar structures are welded in the connection right-angled positions of the strip outer keys and the drill rods. As the drill rod-centered key bar structures are welded in the connection right-angled positions of the strip outer keys and the drill rods, when the driving pipes drive the next sections of the drill rods, the next sections of the drill rods naturally slide to the center positions of the driving pipes under the effect of welding the drill rod-centered key bar structures in the connection right-angled positions of the strip outer keys and the drill rods, the better coaxiality of the driving pipes and the drill rods is kept, and uneven stress of the drill rods due to the working deviation of the key bars caused by the eccentricity of the driving pipes is prevented.
Description
Technical field
The present invention relates to a kind of excavate driver drilling rod, a kind of center configuration for excavating driver drilling rod is specifically related to.
Background technology
Rotary drilling rig is broadly divided into three parts i.e.：Chassis portion, segment of drillpipe, drill bit bore toothed portion.Chassis portion work(
Energy：Hydraulic energy is converted into by hydraulic pump by the mechanical energy of engine, by the control of distributing valve by hydraulic energy, is passed on demand
Power head motor, is converted into mechanical energy by motor, then by reductor and unit head gear-box and internal key set, passes to drilling rod
Part.
The function of segment of drillpipe：Drilling rod is by often saving drilling rod and often saving drilling rod driving tube by base plate of rotary drill rig mechanical energy
Next section drilling rod and drilling rod driving tube are passed to, and until the core bar of drilling rod being passed to square toes position, are connected with the square toes of drill bit
Connect, torsional forces is passed to and toothed portion is bored for drill bit.
Drill bit bores the function of toothed portion:It is connected with the square set of drill bit by drilling rod square toes, mechanical energy is ultimately transferred to bore
Head bores toothed portion, carries out cutting, extrudes, crushes by boring native, husky, rock in tooth device to hole, reaches the purpose of drilling depth, thus may be used
See that drilling rod serves important torsional forces transmission effect in the part of whole rotary drilling rig, so the quality of drilling rod is directly
Have influence on the performance of the whole machine function of rotary drilling rig.
The drilling rod for using at present without centering means, as gap must be left between every section drilling rod, in working order under, pass
Progressively increase pressure and torsional forces when external key three keys there was only a half bond in transmitting torque power, same pressurized plane is also such.It is very bright
It is aobvious one half bond to be become in power transmission by the power transmission simultaneously of three keys, very big is injured to drilling rod.
Utility model content
The technical problem to be solved is to provide a kind of center configuration for excavating driver drilling rod, in overcoming prior art
Due to when the strip external key on the outside of driving tube internal key and drilling rod cooperates drives next section drilling rod, due to necessary between drilling rod
Leave gap, in working order under, transmit plus-pressure and three keys of external key only have a half bond in transmitting torque during torsional forces
Power, significantly affects uniform, the conforming defect of drilling rod stress.
The technical scheme that the present invention solves above-mentioned technical problem is as follows：A kind of center configuration for excavating driver drilling rod, the digging
Pick driver drilling rod includes n section mobile jibs and a section core bar, often saves drilling rod and the driving tube that mobile jib includes being connected with each other, often saves in driving tube
Driving tube internal key along its length is provided with, outside the second to the n-th drilling rod and core bar, is provided with equal with run of steel along its length
Strip external key and its outside spacers arrange bearing structure, it is characterised in that what the strip external key was connected with drilling rod
Right angle is welded with drilling rod spline structure placed in the middle.
The invention has the beneficial effects as follows：As the right angle that strip external key is connected with drilling rod is welded with drilling rod key placed in the middle
Bar structure, when driving tube drives next section drilling rod, it is placed in the middle that the right angle being connected with drilling rod in strip external key is welded with drilling rod
Spline structure function under, next section drilling rod slides to the center of driving tube naturally so that driving tube keeps preferable with drilling rod
Alignment, it is to avoid by the work disengaging of spline caused by the eccentric institute of driving tube, the drilling rod unbalance stress that causes.
On the basis of above-mentioned technical proposal, the present invention can also do following improvement.
A kind of center configuration for excavating driver drilling rod of the invention as described above, further, the spline center configuration is section
For the strip welding rod of triangle, the section is fixed on the strip external key for the strip welding rod of triangle and is connected with drilling rod
The right angle for connecing.
A kind of center configuration for excavating driver drilling rod as described above, further, drilling rod spline structure placed in the middle also includes, is located at
The section of the right angle that the driving tube internal key is connected with driving tube be triangle spline, and with driving tube internal key and driving tube one
Body machining is made.
A kind of center configuration for excavating driver drilling rod as described above, further, the spline of the triangle is isosceles right angle three
Angular, waist length is equal to gap between adjacent inside tube and outboard tube.
Using the beneficial effect of above-mentioned further scheme it is：The right angle being connected with drilling rod due to strip external key and driving
Pipe internal key and the spline structure of the right angle that driving tube connects be section be isosceles triangle spline and waist length be equal to it is adjacent interior
Gap between side pipe and outboard tube, driving tube drive next pole when rotating, as two sections exist for isosceles triangle spline
In the presence of driving force, powered next section drilling rod slides to the center of drive rod naturally, serves effect placed in the middle, it is to avoid quilt
The work disengaging of spline, the drilling rod unbalance stress for causing caused by the eccentric institute of driving tube.
A kind of center configuration for excavating driver drilling rod as described above, further, also including end face center configuration, the end face is occupied
Middle structure be section be right angled triangle spline, the section be triangle spline be located at the driving tube internal key lower end and with
Driving tube and driving tube internal key all-in-one are processed into；One right-angle side of the right angled triangle is connected with driving tube, another
The length of individual right-angle side is gap between adjacent inside tube and outboard tube, and is fixed with driving tube internal key lower end.
Using the beneficial effect of above-mentioned further scheme it is：Due to the connection in driving tube internal key lower end and driving tube lower end
Place is provided with triangle spline, and when driving tube drives the bearing structure on next section drilling rod, the section is right angled triangle key
The contact outside of the pressure-bearing surface of bar and bearing structure, in the presence of plus-pressure, next pole is slipped to center naturally, protects
The alignment with driving tube is held, play end face effect placed in the middle, it is to avoid taken off by the work of the caused spline of the eccentric institute of driving tube
From the drilling rod unbalance stress for causing.
Description of the drawings
Fig. 1 is a kind of center configuration horizontal section schematic diagram excavated in driver drilling rod between two neighboring drilling rod of the present invention；
Fig. 2 is enlarged diagram at Figure 1A；
Fig. 3 is that the end face center configuration in a kind of center configuration for excavating driver drilling rod of the present invention between two neighboring drilling rod is indulged
To generalized section；
Fig. 4 is enlarged diagram at 3A；
Fig. 5 is strip external key and bearing structure schematic diagram on every section drilling rod；
Fig. 6 be prior art in do not have drilling rod placed in the middle spline structure when, drilling rod drive when structural representation；
When Fig. 7 present invention increases drilling rod spline structure placed in the middle, structural representation when drilling rod drives.
In accompanying drawing, the list of parts representated by each label is as follows：
1st, the interior side lever of adjacent two drilling rod, 2, the strip external key on the outside of interior side lever, 3, the outboard beam of adjacent two drilling rod
Driving tube, 4, driving tube internal key, 5, section for triangle strip welding rod, 6, section be triangle spline, 7, outside interior side lever
The bearing structure of side, 8, end face center configuration.
Specific embodiment
The principle and feature of the present invention are described below in conjunction with accompanying drawing, example is served only for explaining the present invention, and
It is non-for limiting the scope of the present invention.
A kind of center configuration for excavating driver drilling rod of the present invention, the excavation driver drilling rod include n section mobile jibs and a section core bar, often
Section mobile jib includes drilling rod and the driving tube being connected with each other, drilling rod and driving tube girth welding, often saves and is provided with driving tube along driving
The driving tube internal key in length of tube direction, is provided with the length equal with run of steel along its length outside the second to the n-th drilling rod and core bar
Bar shaped external key and bearing structure, as shown in Figure 1, 2, strip external key on the inner side drilling rod 1 between two neighboring drilling rod 2 with should
The right angle of the connection of drilling rod 1 is welded with drilling rod spline structure 5 placed in the middle.
A kind of center configuration for excavating driver drilling rod of the present invention, preferred embodiment mode is：The spline center configuration is to cut
Strip welding rod 5 of the face for triangle, welding rod length are identical with 2 length of strip external key, strip of the section for triangle
Shape welding rod is fixed on the right angle that strip external key is connected with the drilling rod.
Drilling rod spline structure placed in the middle also includes the section for being located at the right angle that driving tube internal key 4 is connected with the driving tube 3
For triangle spline, and it is processed into driving tube internal key 4 and 3 all-in-one of driving tube.The spline of the triangle is that isosceles are straight
Angle triangle, waist length are equal to gap between adjacent inside tube and outboard tube.Driving tube drives next section drilling rod when rotating, due to
Two sections are isosceles triangle spline in the presence of driving force, and powered next section drilling rod is slided in drive rod naturally
The heart, serves effect placed in the middle, it is to avoid by the work disengaging of spline caused by driving tube eccentric institute, the drilling rod stress for causing is not
.
A kind of center configuration for excavating driver drilling rod of the present invention, preferred real mode is：As shown in Figure 3,4, also occupy including end face
Middle structure, it is right angled triangle spline 8 that the end face center configuration is section, and the section is located at described for triangle spline 8
The lower end of driving tube internal key 4 and it is processed into driving tube 3 and 4 all-in-one of driving tube internal key；The right angled triangle spline 8
One right-angle side 81 is connected with driving tube 3, the length of another right-angle side 82 be adjacent inner side drilling rod 1 and outside drilling rod 5 it
Between gap, and fix with 4 lower end of driving tube internal key.Due to being provided with the junction of 3 lower end of driving tube in 4 lower end of driving tube internal key
Triangle spline, when driving tube 4 drive it is next section drilling rod 1 on bearing structure 7 when, the section be right angled triangle spline with
The contact outside of the pressure-bearing surface 9 of bearing structure, i.e. driving tube lower end triangle spline form a bell shape and tie to pressure-bearing
Structure adds a straw hat, and in the presence of plus-pressure, next pole is slipped to center naturally, keeps coaxial with driving tube
Property, play end face effect placed in the middle, it is to avoid by the work disengaging of spline caused by the eccentric institute of driving tube, the drilling rod stress that causes
It is uneven.
The foregoing is only presently preferred embodiments of the present invention, not to limit the present invention, all spirit in the present invention and
Within principle, any modification, equivalent substitution and improvements made etc. should be included within the scope of the present invention.
Claims (4)
1. it is a kind of excavate driver drilling rod center configuration, the excavation driver drilling rod include n section mobile jib and one section core bar, often save mobile jib bag
The drilling rod and driving tube being connected with each other is included, the driving tube internal key being provided with driving tube along its length is often saved, the second to the n-th bores
Between being provided with outside bar and core bar along its length on the outside of the strip external key equal with run of steel and the second to the n-th drilling rod and core bar
Every the bearing structure for arranging, it is characterised in that it is placed in the middle that the right angle that the strip external key is connected with drilling rod is welded with drilling rod
Spline structure；
The spline structure is the strip welding rod that section is triangle, and the section is fixed on for the strip welding rod of triangle
The right angle that the strip external key is connected with drilling rod.
2. a kind of center configuration for excavating driver drilling rod according to claim 1, it is characterised in that also including being located at the driving
Spline of the section of the right angle that pipe internal key is connected with driving tube for triangle, and add with driving tube internal key and driving tube all-in-one
Work is made.
3. a kind of center configuration for excavating driver drilling rod according to claim 2, it is characterised in that the spline of the triangle is
Isosceles right triangle, waist length are equal to gap between adjacent inside tube and outboard tube.
4. according to any one of claims 1 to 3 it is a kind of excavate driver drilling rod center configuration, it is characterised in that also including end
Face center configuration, the end face center configuration are the spline that section is right angled triangle, and the section is the key of right angled triangle
Bar is located at the lower end of the driving tube internal key and is processed into driving tube internal key all-in-one；One of the right angled triangle is straight
The arm of angle is connected with driving tube, and the length of another right-angle side is gap between adjacent inside tube and outboard tube, and and driving tube
Internal key lower end is fixed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410549343.3A CN104389527B (en) | 2014-10-16 | 2014-10-16 | Center structure of excavator drill rod |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410549343.3A CN104389527B (en) | 2014-10-16 | 2014-10-16 | Center structure of excavator drill rod |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104389527A CN104389527A (en) | 2015-03-04 |
| CN104389527B true CN104389527B (en) | 2017-03-22 |
Family
ID=52607476
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410549343.3A Active CN104389527B (en) | 2014-10-16 | 2014-10-16 | Center structure of excavator drill rod |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104389527B (en) |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8162067B2 (en) * | 2009-04-24 | 2012-04-24 | Weatherford/Lamb, Inc. | System and method to expand tubulars below restrictions |
| CN202483469U (en) * | 2012-03-16 | 2012-10-10 | 北京市三一重机有限公司 | Drilling rod and rotary drilling rig |
| CN102900375B (en) * | 2012-09-28 | 2015-07-08 | 三一重工股份有限公司 | Rotary drilling rig and rotary drill rod thereof |
| CN203531763U (en) * | 2013-10-31 | 2014-04-09 | 上海中联重科桩工机械有限公司 | Drill rod and rotary drilling rig |
| CN204163639U (en) * | 2014-10-16 | 2015-02-18 | 英联鑫博(天津)机械制造有限公司 | A kind of center configuration of drilling machine drilling rod |
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2014
- 2014-10-16 CN CN201410549343.3A patent/CN104389527B/en active Active
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| Publication number | Publication date |
|---|---|
| CN104389527A (en) | 2015-03-04 |
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| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CB03 | Change of inventor or designer information | ||
| CB03 | Change of inventor or designer information |
Inventor after: Zhao Xinyu Inventor before: Zhao Xinyu Inventor before: Hu Lianqi |
|
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20200331 Address after: No.236 CaoShi village, Songzhuang Town, Tongzhou District, Beijing Patentee after: Zhao Xinyu Address before: 301800 Baodi 232 state-owned factory, Tianjin Patentee before: YINGLIAN XINBO (TIANJIN) MACHINERY MANUFACTURING Co.,Ltd. |