CN107939287B - Lengthened push rod of drilling trolley - Google Patents
Lengthened push rod of drilling trolley Download PDFInfo
- Publication number
- CN107939287B CN107939287B CN201711454802.XA CN201711454802A CN107939287B CN 107939287 B CN107939287 B CN 107939287B CN 201711454802 A CN201711454802 A CN 201711454802A CN 107939287 B CN107939287 B CN 107939287B
- Authority
- CN
- China
- Prior art keywords
- rod body
- stress shaft
- stress
- auxiliary rod
- shaft
- 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.)
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Links
- 238000005553 drilling Methods 0.000 title abstract description 8
- 239000011159 matrix material Substances 0.000 claims abstract description 6
- 238000000034 method Methods 0.000 description 4
- 239000000758 substrate Substances 0.000 description 3
- 241001391944 Commicarpus scandens Species 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B7/00—Special methods or apparatus for drilling
- E21B7/02—Drilling rigs characterised by means for land transport with their own drive, e.g. skid mounting or wheel mounting
- E21B7/025—Rock drills, i.e. jumbo drills
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B12/00—Accessories for drilling tools
Landscapes
- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Mining & Mineral Resources (AREA)
- Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Mechanical Engineering (AREA)
- Earth Drilling (AREA)
Abstract
The invention discloses a lengthened push rod of a drilling trolley, which belongs to the field of engineering machinery and comprises a main rod body, an auxiliary rod body, a stress shaft and a locking nut, and is characterized in that: the main rod body comprises a main rod body matrix and an external thread end; the auxiliary rod body comprises an auxiliary rod body base body and an internal thread end, a stress shaft mounting hole is formed in the auxiliary rod body base body, a cambered surface capable of reducing concentrated stress of the stress shaft during working and prolonging the service life of the stress shaft is arranged in the stress shaft mounting hole, and an anti-rotation groove for applying force during assembling the lengthened push rod is formed in the outer side of the auxiliary rod body base body; the stress shaft comprises an external thread and a stress shaft base body, the end part of the external thread is provided with a chamfer angle a, the end part of the stress shaft base body far away from the external thread is provided with a chamfer angle b, a pin hole is formed below the chamfer angle b, and the main rod body and the auxiliary rod body are relatively fixed through threaded connection; the stress shaft is inserted into a hole of the auxiliary rod body, and the stress shaft and the hole are in interference fit; the locking nut is connected with the stress shaft through threads and is relatively fixed.
Description
Technical Field
The invention belongs to the field of engineering machinery, and particularly relates to an extension push rod of a drill jumbo.
Background
The main rod body of the lengthened push rod of the drilling trolley and the stress shaft have larger section difference, and the mechanical property of the material of the stress shaft is lower than that of the main rod body after the final forming although the main rod body and the stress shaft are processed by the same heat treatment process, so that the overall service life balance of the lengthened push rod is influenced. In the drilling process, the stress bearing carries larger force, and under the periodical impact and torsion effects, the stress shaft is easy to break at the root connected with the main rod body. After the stress shaft is broken, the whole lengthened push rod is scrapped, so that great waste is caused. Based on the above problems, it is necessary to invent a drill jumbo lengthening push rod to lengthen the balance of the whole life of the push rod and reduce the use cost.
Disclosure of Invention
In order to solve the problems, the invention provides an extension push rod of a drilling trolley.
The invention is realized by the following technical scheme: the lengthened push rod of the drilling jumbo comprises a main rod body, an auxiliary rod body, a stress shaft and a locking nut, wherein the main rod body comprises a main rod body matrix and an external thread end; the auxiliary rod body comprises an auxiliary rod body base body and an internal thread end, a stress shaft mounting hole is formed in the auxiliary rod body base body, a cambered surface capable of reducing concentrated stress of the stress shaft during working and prolonging the service life of the stress shaft is arranged in the stress shaft mounting hole, and an anti-rotation groove for applying force during assembling the lengthened push rod is formed in the outer side of the auxiliary rod body base body; the stress shaft comprises an external thread and a stress shaft base body, the end part of the external thread is provided with a chamfer angle a, the end part of the stress shaft base body far away from the external thread is provided with a chamfer angle b, a pin hole is formed below the chamfer angle b, and the main rod body and the auxiliary rod body are relatively fixed through threaded connection; the stress shaft is inserted into a hole of the auxiliary rod body, and the stress shaft and the hole are in interference fit; the locking nut is connected with the stress shaft through threads and is relatively fixed. The number of the anti-rotation grooves evenly distributed on the outer side of the internal thread end is 4.
The invention has the beneficial effects that: the invention can effectively lengthen the balance of the whole service life of the push rod, and the stress shaft can be detached and replaced by a new stress shaft if the stress shaft is broken in the use process, so that the whole lengthened push rod can still be normally used, and the use cost is reduced.
Drawings
FIG. 1 is a schematic diagram of the structure of the present invention;
FIG. 2 is a schematic view of the internal structure of FIG. 1;
FIG. 3 is a schematic view of the main pole body;
FIG. 4 is a schematic view of the structure of the secondary rod body;
FIG. 5 is a schematic view of a force bearing shaft structure;
fig. 6 is a schematic view of the internal structure of fig. 4.
In the figure: 1. the novel anti-rotation device comprises a main rod body, 2 parts of auxiliary rod bodies, 3 parts of stress shafts, 4 parts of locking nuts, 1-1 parts of main rod body substrates, 1-2 parts of external thread ends, 2-1 parts of auxiliary rod body substrates, 2-2 parts of internal thread ends, 2-3 parts of stress shaft mounting holes, 2-4 parts of cambered surfaces, 2-5 parts of anti-rotation grooves, 3-1 parts of chamfer angles a,3-2 parts of chamfer angles b,3-3 parts of chamfer angles b, pin holes, 3-4 parts of external threads and 3-5 parts of stress shaft substrates.
The specific embodiment is as follows: the lengthened push rod of the drilling jumbo comprises a main rod body 1, an auxiliary rod body 2, a stress shaft 3 and a locking nut 4, wherein the main rod body 1 comprises a main rod body matrix 1-1 and an external thread end 1-2; the auxiliary rod body comprises an auxiliary rod body base body 2-1 and an internal thread end 2-2, a stress shaft mounting hole 2-3 is formed in the auxiliary rod body base body 2-1, an arc surface 2-4 capable of reducing concentrated stress when the stress shaft 3 works and prolonging service life of the stress shaft is arranged in the stress shaft mounting hole 2-3, and an anti-rotation groove 2-5 used for applying force when an extension push rod is assembled is arranged on the outer side of the auxiliary rod body base body 2-1; the stress shaft 3 comprises an external thread 3-4 and a stress shaft matrix 3-5, the end part of the external thread 3-4 is provided with a chamfer angle a3-1, the end part of the stress shaft matrix 3-5 far away from the external thread 3-4 is provided with a chamfer angle b3-2, a pin hole 3-3 is arranged below the chamfer angle b3-2, and the main rod body 1 and the auxiliary rod body 2 are relatively fixed through threaded connection; the stress shaft 3 is inserted into a hole of the auxiliary rod body 2, and the stress shaft and the hole are in interference fit; the locking nut 4 is connected with the stress shaft 3 through threads and is relatively fixed. The number of the anti-rotation grooves 2-5 evenly distributed on the outer side of the internal thread end 2-2 is 4.
When the lengthened push rod is assembled, the anti-rotation groove 2-5 is clamped by a tool, the auxiliary rod body 2 is screwed on the main rod body 1 until the auxiliary rod body cannot rotate, the chamfer angle a3-1 of the stress shaft 3 is inserted into the stress shaft mounting hole 2-3, the chamfer angle b3-2 is tapped by the tool until the stress shaft 3 cannot enter continuously, and then the end face of the chamfer angle a3-1 of the stress shaft 3 is attached to the end face of the external thread end 1-2. The main rod body 1 is separated from the auxiliary rod body 2, the blocking nut 4 and the external thread 3-4 are screwed until the screwing cannot be continued, and then the main rod body 1 and the auxiliary rod body 2 are screwed again until the screwing cannot be completed, so that the whole lengthening push rod is completed.
When the stress shaft 3 is broken, the main rod body 1 is separated from the auxiliary rod body 2, the locking nut 4 is separated from the external thread 3-4, a tool is used for knocking the end face of the chamfer angle a3-1 until the stress shaft 3 is separated from the auxiliary rod body 2, the stress shaft 3 is replaced, and the lengthened push rod is recovered according to the assembly step of the lengthened push rod.
The invention can effectively lengthen the balance of the whole service life of the push rod, and the stress shaft can be detached and replaced by a new stress shaft if the stress shaft is broken in the use process, so that the whole lengthened push rod can still be normally used, and the use cost is reduced.
Claims (2)
1. The utility model provides a drill jumbo extension push rod, includes the main rod body (1), vice body of rod (2), atress axle (3) and lock nut (4), its characterized in that: the main rod body (1) comprises a main rod body matrix (1-1) and an external thread end (1-2); the auxiliary rod body comprises an auxiliary rod body base body (2-1) and an internal thread end (2-2), a stress shaft mounting hole (2-3) is formed in the auxiliary rod body base body (2-1), an arc surface (2-4) capable of reducing concentrated stress of the stress shaft (3) during working and prolonging the service life of the stress shaft is arranged in the stress shaft mounting hole (2-3), and an anti-rotation groove (2-5) for applying force during assembling of an extension push rod is formed in the outer side of the auxiliary rod body base body (2-1); the bearing shaft (3) comprises an external thread (3-4) and a bearing shaft base body (3-5), a chamfer angle a (3-1) is arranged at the end part of the external thread (3-4), a chamfer angle b (3-2) is arranged at the end part of the bearing shaft base body (3-5) far away from the external thread (3-4), a pin hole (3-3) is formed below the chamfer angle b (3-2), and the main rod body (1) and the auxiliary rod body (2) are relatively fixed through threaded connection; the stress shaft (3) is inserted into a hole of the auxiliary rod body (2) and is in interference fit with the auxiliary rod body; the locking nut (4) is connected with the stress shaft (3) through threads and is relatively fixed.
2. A drill jumbo extension pushrod according to claim 1, characterized in that: the number of anti-rotation grooves (2-5) uniformly distributed on the outer side of the internal thread end (2-2) is 4.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711454802.XA CN107939287B (en) | 2017-12-28 | 2017-12-28 | Lengthened push rod of drilling trolley |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711454802.XA CN107939287B (en) | 2017-12-28 | 2017-12-28 | Lengthened push rod of drilling trolley |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107939287A CN107939287A (en) | 2018-04-20 |
| CN107939287B true CN107939287B (en) | 2023-11-10 |
Family
ID=61940640
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711454802.XA Active CN107939287B (en) | 2017-12-28 | 2017-12-28 | Lengthened push rod of drilling trolley |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107939287B (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2173860Y (en) * | 1993-08-12 | 1994-08-10 | 东北大学 | Drill rod |
| CN203050539U (en) * | 2013-02-01 | 2013-07-10 | 成都大漠石油机械有限公司 | Two-section petroleum drill rod |
| CN103982138A (en) * | 2014-05-30 | 2014-08-13 | 无锡市安迈工程机械有限公司 | Automatic expanding drill for drilling machine |
| CN106194225A (en) * | 2015-05-04 | 2016-12-07 | 河南理工大学 | Reverse wedge shape reaming at the bottom of a kind of bolthole hole strengthens anchoring property method |
| CN106223860A (en) * | 2016-08-19 | 2016-12-14 | 李泓胜 | A kind of using method of interior reaming PDC drill bit |
| CN207701073U (en) * | 2017-12-28 | 2018-08-07 | 徐州徐工铁路装备有限公司 | A kind of drill jumbo lengthening push rod |
-
2017
- 2017-12-28 CN CN201711454802.XA patent/CN107939287B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2173860Y (en) * | 1993-08-12 | 1994-08-10 | 东北大学 | Drill rod |
| CN203050539U (en) * | 2013-02-01 | 2013-07-10 | 成都大漠石油机械有限公司 | Two-section petroleum drill rod |
| CN103982138A (en) * | 2014-05-30 | 2014-08-13 | 无锡市安迈工程机械有限公司 | Automatic expanding drill for drilling machine |
| CN106194225A (en) * | 2015-05-04 | 2016-12-07 | 河南理工大学 | Reverse wedge shape reaming at the bottom of a kind of bolthole hole strengthens anchoring property method |
| CN106223860A (en) * | 2016-08-19 | 2016-12-14 | 李泓胜 | A kind of using method of interior reaming PDC drill bit |
| CN207701073U (en) * | 2017-12-28 | 2018-08-07 | 徐州徐工铁路装备有限公司 | A kind of drill jumbo lengthening push rod |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107939287A (en) | 2018-04-20 |
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