CN1831508A - Rotation drilling rod faigue-testing machine - Google Patents
Rotation drilling rod faigue-testing machine Download PDFInfo
- Publication number
- CN1831508A CN1831508A CNA2006100187827A CN200610018782A CN1831508A CN 1831508 A CN1831508 A CN 1831508A CN A2006100187827 A CNA2006100187827 A CN A2006100187827A CN 200610018782 A CN200610018782 A CN 200610018782A CN 1831508 A CN1831508 A CN 1831508A
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- drilling rod
- fixator
- drill pipe
- pipe sub
- support
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Abstract
A fatigue tester of rotary drilling rod is prepared as passing the drilling rod through eccentric hole then firm - joining it with pulley, connecting pulley by isolation plate between bearing and base, screwing left end of drilling rod into cork with thread on the second drilling rod joint fixer and right end into left part of thread hole on the first drilling rod joint fixer, screwing output port of oil pipe on impulse hydraulic pump into right part of thread hole on the first drilling rod joint fixer and setting pressure transducer being connected to alarm unit on oil pipe.
Description
Technical field
The present invention relates to a kind of rotation drilling rod faigue-testing machine.
Background technology
In the various technological means of exploratory development subterranean resource, probing is the most direct technological means.Can realize drilling target quickly and efficiently, except drilling technology and probing parameter designing, how reducing drilling accident be the major influence factors that drilling cost was finished and reduced to the assurance engineering smoothly.Under the drilling technology condition of determining, what drilling project progress and drilling cost were had the greatest impact is drilling accident, and modal drilling accident to be drill pipe sub tired fractures, the crack, come off etc.The quality of the quality of drilling rod, especially joint quality has directly influenced the progress and the cost of drilling project.At present, to the evaluation of drill pipe sub mainly by staff's experience and to the familiarity of certain tame manufacturer's product, the quantification notion that neither one is clear and definite.
In the drilling process, drilling tool is except being subjected to pulling force, also will be subjected to the bending stress of alternate, because the perturbed force that changes of the cycle of transverse vibration that stratigraphic fluctuation, rotation etc. cause and twisting vibration, and the high-voltage pulse of drilling rod interior flushing liquid etc. has quickened the fatigure failure and the inefficacy of drilling tool.Drilling tool failure except causing drilling tool loss, fishing operation and to stop to creep into loss bigger, even can cause drilling depth to scrap.
The drilling rod failure type mainly contains excessive deformation, crackle, pierces through or fracture and surface damage.Yet, the drilling rod crackle, pierce through or fatigue break shared large percentage in the drill string failure accidents, mainly due to stress pierce through, reason such as fatigue break, fatigue crack and corrosion fatigue causes.Therefore, before drilling rod work, if the performances such as fatigue resistence to drilling rod have individual quantitatively evaluating, drilling rods such as promptly under specific boring and specific drilling liquid pressure condition, how long just drilling rod can be worked can take place that stress pierces through, fatigue break, fatigue crack and corrosion fatigue damage.Before drilling rod is about to fatigure failure takes place, can in time change drilling rod, can effectively prevent to cause unnecessary loss owing to the fatigue of drilling rod.
Summary of the invention
The object of the present invention is to provide and a kind ofly can simulate drilling rod working condition and rotation drilling rod faigue-testing machine that the fatigue resistence of drilling rod is detected in boring.
To achieve these goals, technical scheme of the present invention is: rotation drilling rod faigue-testing machine, it is characterized in that it draws together support 1, numerical control electric machine 2, belt 3, pulse hydraulic pump 4, pressure transducer 5, oil pipe 6, the first drill pipe sub fixator 7, bearing 9, belt pulley 10, the second drill pipe sub fixator 11,1 one-tenth on support
Type, belt pulley 10 is provided with eccentric orfice, and drilling rod 8 passes eccentric orfice fixedlys connected with belt pulley 10, and belt pulley 10 is connected by the central dividing plate of bearing 9 with support 1; The middle part of the second drill pipe sub fixator 11 is provided with one and protrudes threaded plug, the left end of drilling rod 8 screws in the threaded plug of the second drill pipe sub fixator 11, the second drill pipe sub fixator 11 is fixedlyed connected with the left plate of support 1, the middle part of the first drill pipe sub fixator 7 is provided with a threaded apertures, the right-hand member of drilling rod 8 screws in the left part of the threaded apertures of the first drill pipe sub fixator 7, the first drill pipe sub fixator 7 is fixedlyed connected with the right plate of support 1, and oil pipe 6 output ports of pulse hydraulic pump 4 are screwed in the right part of the threaded apertures of the first drill pipe sub fixator 7 by the high-pressure oil pipe joint; Oil pipe 6 is provided with pressure transducer 5, and pressure transducer 5 is connected with warning device; Numerical control electric machine 2 is fixed on the support 1, and the output shaft of numerical control electric machine 2 is provided with timer, and the output shaft of numerical control electric machine 2 is connected with belt pulley 10 by belt 3.
The present invention adopts belt pulley 10 to be provided with eccentric orfice, and drilling rod 8 passes eccentric orfice fixedlys connected with belt pulley 10, and belt pulley 10 is driven by numerical control electric machine 2, provides the bending stress of alternate to drilling rod, can simulate drilling rod working condition in boring.Oil pipe 6 delivery outlets of pulse hydraulic pump 4 (adopt general high-pressure oil pipe joint to be connected with the right-hand member aperture enclosure-type connection of drilling rod 8, the first drill pipe sub fixator 7), oil pipe 6 is provided with pressure transducer 5: when drilling rod (comprises drill pipe sub, the two ends of drilling rod are called drill pipe sub, the two end portions thickening, one end is an internal thread, the other end is an external thread) damage or the inefficacy of any form take place, pulse in the drilling rod takes place unusual, pressure transducer 5 is passed to warning device with signal, warning device is reported to the police, the staff can check drilling rod, promptly after drilling rod work how long stress has taken place and has pierced through, fatigue break, failure mode such as fatigue crack and corrosion fatigue; Thereby determine that this drilling rod can be in the maximal work time under this kind boring working condition; Thereby realize the fatigue resistence of drilling rod is detected.
Description of drawings
Fig. 1 is a structural representation of the present invention
Fig. 2 is that Fig. 1 is along A-A line cut-open view
Fig. 3 is drilling rod working condition synoptic diagram in boring
Fig. 4 is the schematic diagram of warning device
Among the figure: 1-support, 2-numerical control electric machine, 3-belt, 4-pulse hydraulic pump, 5-pressure transducer, the 6-oil pipe, the 7-first drill pipe sub fixator, 8-drilling rod, 9-bearing, the 10-belt pulley, the 11-second drill pipe sub fixator, 12-drilling rod movement locus (adjustable size), 13-boring.
Embodiment
As shown in Figure 1 and Figure 2, rotation drilling rod faigue-testing machine, it is characterized in that it draws together support 1, numerical control electric machine 2, belt 3, pulse hydraulic pump 4, pressure transducer 5, oil pipe 6, the first drill pipe sub fixator 7, bearing 9, belt pulley 10, the second drill pipe sub fixator 11,1 one-tenth on support
Type, belt pulley 10 is provided with eccentric orfice, drilling rod (or claim the revolution drilling rod, interior be cavity, i.e. tubing) 8 pass eccentric orfice fixedly connected with belt pulley 10 (outside of belt pulley is a circle, by Bearing Installation on support; Inside is eccentric, a clamp device is installed on eccentric orfice drilling rod is clamped; When belt rotated, eccentric orfice was done eccentric motion, provided alterante stress to drilling rod, and drilling rod does not turn round), belt pulley 10 is connected by the central dividing plate of bearing 9 with support 1; The middle part of the second drill pipe sub fixator 11 is provided with one and protrudes threaded plug, the left end of drilling rod 8 screws in that (there is a protrusion at the middle part of the second drill pipe sub fixator 11 in the threaded plug, solid screwed stopper, can with drilling rod by being threaded and the sealing of drilling rod being provided, carry out between the second drill pipe sub fixator 11 and the support 1 that plug-in type connects and use bolt) at four jiaos and support 1, the second drill pipe sub fixator 11 is fixedlyed connected with the left plate of support 1, the middle part of the first drill pipe sub fixator 7 is provided with a threaded apertures (through hole), the right-hand member of drilling rod 8 screws in the left part of threaded apertures, the first drill pipe sub fixator 7 is fixedlyed connected with the right plate of support 1, and oil pipe 6 delivery outlets of pulse hydraulic pump 4 are screwed in the right part of the threaded apertures of the first drill pipe sub fixator 7 by the high-pressure oil pipe joint; Oil pipe 6 is provided with pressure transducer 5, and pressure transducer 5 is connected with warning device: numerical control electric machine 2 is fixed on the support 1, and the output shaft of numerical control electric machine 2 is provided with timer, and the output shaft of numerical control electric machine 2 is connected with belt pulley 10 by belt 3.
The main effect of numerical control electric machine provides power to drilling rod, and its rotating speed is adjustable, is equivalent to the different gears of rig.Numerical control electric power is provided with timer simultaneously, can write down the working time of numerical control electric machine and total revolution.
Pulse hydraulic pump, pulse hydraulic pump provides liquid pulse pressure to drilling rod.Simulate in the actual drilling process work engineering of washing fluid.
Generally, the working condition that drilling rod bores boring is crooked as Fig. 3, L is the half-wave length of drilling rod when boring work, therefore, when the torture test machine testing, half-wavelength when working in different bore diameters according to drilling rod determines to be provided with on the belt pulley 10 eccentric throw (eccentric throw of drilling rod 8) of eccentric orfice, the course of work of simulation drilling rod in boring, adjust the eccentric throw of eccentric orfice in conjunction with the annular gap between drilling rod and the boring, the bending stress of alternate is provided to drilling rod, the position deviation degree of eccentric orfice depends on the working clearance between drilling rod and the boring, can regulate.
As shown in Figure 4, warning device principle of work explanation:
(1) pressure transducer is installed in the inside of drilling rod and high-pressure oil pipe joint, and being connected to computer console, pressure signal is by the computing machine Filtering Processing, and process program setting normal range, when the pressure signal of pressure transducer occurs less than the pressure signal set, alarm equipment alarm.Simultaneously, timer stops to clock.
(2) when warning device took place to report to the police, computer console sent cut-offing instruction to relay, cuts off the electricity supply, and the numerical control electric machine quits work.
(3) staff can know the length that drilling rod can the working time under similar condition of work by timer, promptly can estimate the life-span and the quality of drilling rod.
(4) staff further can check the concrete failure mode of drilling rod by the drilling rod lossless detection instrument of special use, and promptly stress pierces through, fatigue break, fatigue crack still be corrosion fatigue etc.
Rotation drilling rod faigue-testing machine of the present invention has versatility, goes for the quality testing evaluation of all drilling rods.Because when drilling rod is worked in different apertures, the abominable degree of its condition of work is not quite similar.Drill pipe diameter is constant, and the aperture is big more, and the pressure of the drill is high more, the easy more destruction of drilling rod.Therefore, can estimate the maximum operating time that drilling rod can bear as long as know the diameter of drilling rod and the condition of work of drilling rod under this condition of work.For the drilling rod and the form of in different borings, working of different-diameter, as long as adjust the eccentric throw of eccentric mover.Certainly for deep hole and superdeep holes, the diameter of general boring requires to change little, so the result and the actual conditions that detect are more approaching.
Claims (1)
1. rotation drilling rod faigue-testing machine, it is characterized in that it draws together support (1), numerical control electric machine (2), belt (3), pulse hydraulic pump (4), pressure transducer (5), oil pipe (6), the first drill pipe sub fixator (7), bearing (9), belt pulley (10), the second drill pipe sub fixator (11), support (1) becomes
Type, belt pulley (10) is provided with eccentric orfice, and drilling rod (8) passes eccentric orfice fixedlys connected with belt pulley (10), and belt pulley (10) is connected by the central dividing plate of bearing (9) with support (1); The middle part of the second drill pipe sub fixator (11) is provided with one and protrudes threaded plug, the left end of drilling rod (8) screws in the threaded plug of the second drill pipe sub fixator (11), the second drill pipe sub fixator (11) is fixedlyed connected with the left plate of support (1), the middle part of the first drill pipe sub fixator (7) is provided with a threaded apertures, the right-hand member of drilling rod (8) screws in the left part of the threaded apertures of the first drill pipe sub fixator (7), the first drill pipe sub fixator (7) is fixedlyed connected with the right plate of support (1), oil pipe (6) output port of pulse hydraulic pump (4) is screwed in the right part of the threaded apertures of the first drill pipe sub fixator (7) by the high-pressure oil pipe joint: oil pipe (6) is provided with pressure transducer (5), pressure transducer (5) is connected with warning device: numerical control electric machine (2) is fixed on the support (1), the output shaft of numerical control electric machine (2) is provided with timer, and the output shaft of numerical control electric machine (2) is connected with belt pulley (10) by belt (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2006100187827A CN100487412C (en) | 2006-04-14 | 2006-04-14 | Rotation drilling rod faigue-testing machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2006100187827A CN100487412C (en) | 2006-04-14 | 2006-04-14 | Rotation drilling rod faigue-testing machine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1831508A true CN1831508A (en) | 2006-09-13 |
| CN100487412C CN100487412C (en) | 2009-05-13 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2006100187827A Expired - Fee Related CN100487412C (en) | 2006-04-14 | 2006-04-14 | Rotation drilling rod faigue-testing machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN100487412C (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106769396A (en) * | 2017-02-08 | 2017-05-31 | 中国地质大学（武汉） | A kind of horizontal directional drill drilling rod fatigue damage detecting system |
| CN107157544A (en) * | 2017-06-15 | 2017-09-15 | 北京爱康宜诚医疗器材有限公司 | Medical swing saw |
-
2006
- 2006-04-14 CN CNB2006100187827A patent/CN100487412C/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106769396A (en) * | 2017-02-08 | 2017-05-31 | 中国地质大学（武汉） | A kind of horizontal directional drill drilling rod fatigue damage detecting system |
| CN106769396B (en) * | 2017-02-08 | 2019-03-01 | 中国地质大学（武汉） | A kind of horizontal directional drill drilling rod fatigue damage detection system |
| CN107157544A (en) * | 2017-06-15 | 2017-09-15 | 北京爱康宜诚医疗器材有限公司 | Medical swing saw |
Also Published As
| Publication number | Publication date |
|---|---|
| CN100487412C (en) | 2009-05-13 |
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| 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 | ||
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Granted publication date: 20090513 Termination date: 20100414 |