CN106526097A - Automatic open-close type drill rod damage detection device - Google Patents
Automatic open-close type drill rod damage detection device Download PDFInfo
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- CN106526097A CN106526097A CN201710021373.0A CN201710021373A CN106526097A CN 106526097 A CN106526097 A CN 106526097A CN 201710021373 A CN201710021373 A CN 201710021373A CN 106526097 A CN106526097 A CN 106526097A
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- damage detection
- drilling rod
- detection apparatus
- rod damage
- heel teeth
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
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Abstract
The invention relates to a drill rod damage detection device, in particular to an automatic open-close type drill rod damage detection device. The automatic open-close type drill rod damage detection device comprises a base, an upper tank cover, an upper tank body, a lower tank body and an opening and closing assembly, wherein the base is fixedly provided with the lower tank body; the lower tank body is movably provided with the upper tank body; the upper tank body is fixedly provided with the upper tank cover; a centering rod is arranged in the middle position of the top part of the upper tank cover through a slide way in a sliding way; the front end of the upper tank body is in an opened shape; edge gear racks are symmetrically arranged at two sides in the upper tank body; a middle gear rack is arranged between the edge gear racks; the opening and closing assembly is arranged at the end heads of the edge gear racks and the middle gear racks. The automatic open-close type drill rod damage detection device disclosed by the invention is simple in structure and high in practicability, and during a working process, detection on drill rod damage can be automatically carried out under the situation that other devices on a platform are not interfered; the problem that drill column damage must be detected by an existing detection device under the situation that drilling is stopped is solved, the working efficiency is effectively increased, and the drill rod damage detection device is particularly suitable for being used for drill rod damage detection.
Description
Technical field
The present invention relates to a kind of drilling rod damage detection apparatus, and in particular to a kind of automatic folding type drilling rod damage check dress
Put.
Background technology
In drilling process, downhole tool is often subject to tension and compression, torsion, bending iso-stress.In the effect of these stress
Under, cause drilling rod surface to produce the situations such as abrasion, deformation, corrosion.If finding these problems not in time, damage reaches certain journey
After degree, the accident such as Drill Pipe Washout and fracture is may result in.After drilling rod occurs failure, can directly cause drilling period elongated, make
Cost increases, and serious meeting directly threatens the life security of workman, causes serious accident.With the development of drilling technology,
The drilling well amount of the Holes of Complicated Wells such as deep-well, horizontal well is more and more, and drilling rod safety is further important.
To prevent the very first time after drilling rod occurs to damage from detecting position and the degree that drilling rod occurs to damage, and prediction is bored
In the life-span of bar, the method for drilling rod flaw detection is conventionally used to, such as：Ultrasonic method, eddy-current method, magnetic particle method, osmosis, electromagnetic method and ray method
Can not detect when drill string works etc. detection method, can interfere with other devices on platform, and load and unload complicated and time consumption, detection efficiency
It is low.
Therefore, it is necessary to one kind can enter automatically in the case of other devices on platform can not interfered when drill string works
The device of row drilling rod damage check.
The content of the invention
It is an object of the invention to：A kind of simple structure is provided, detection efficiency is high, and accuracy is good, and which can be in drilling machine well mouth
The automatic folding type drilling rod damage detection apparatus of damage check are carried out to drilling rod.
The technical scheme is that：
A kind of automatic folding type drilling rod damage detection apparatus, including base, upper box lid, upper box, lower box and folding component, its
It is characterised by：Lower box is fixed with base, upper box on lower box, is movably installed with, upper box lid on upper box, is fixed with, on
The crown center position of case lid is slidably fitted with centering rod by slideway, and described upper box front end is opening shape, in top box body
Both sides are symmetrically arranged with heel teeth bar, and the termination that middle tooth bar, heel teeth bar and middle tooth bar are arranged between heel teeth bar is equipped with folding group
Part.
The inner surface of described upper box lid is fixed with motor, and motor side is equipped with idler gear by mounting seat, motor
Motor gear is housed on output shaft, motor gear is connected with idler gear engagement.
The boxboard centre position of described upper box is provided with power transmission shaft by bearing, and the two ends of power transmission shaft are fixed with respectively
Heel teeth rack wheel, heel teeth rack wheel are connected with the engagement of heel teeth bar respectively；Power transmission shaft between heel teeth rack wheel
It is upper that middle rack wheel is housed；Middle rack wheel is connected with idler gear and middle tooth bar engagement respectively.
Chute is provided with described middle tooth bar, chute is connected with heel teeth bar respectively built with connecting rod, the two ends of connecting rod.
Guide rail is symmetrically arranged with described lower box, slide block on guide rail, is slidably fitted with, on the lower box between guide rail
Equipped with electric pushrod, described slide block and electric pushrod are connected with upper box respectively.
Described folding component includes the folding ring being made up of two semi-rings, one end end of two semi-rings is respectively provided with
There is mounting ring, folding ring is movably arranged on middle tooth bar termination by bearing pin by mounting ring, divide on two semi-rings of bearing pin both sides
Connecting plate is not provided with, two semi-rings of folding ring are flexibly connected with heel teeth bar termination respectively by connecting plate；The two of folding ring
Individual half ring inner surface is evenly equipped with multiple damage detectors respectively.
Described damage detector includes pedestal, enclosing cover, rocker piece and probe, and enclosing cover is fixed with pedestal, leads in enclosing cover
Big spring is crossed equipped with rocker piece, one end of rocker piece extends to the outer end of enclosing cover, connecting rod, the termination of connecting rod are provided with rocker piece
Equipped with probe, on the connecting rod between probe and rocker piece, little spring is set with.
Roller is equipped with by bearing pin on described probe, on the probe of roller side, guide plate is provided with.
Described guide plate is crescent.
The beneficial effects of the present invention is：
The automatic folding type drilling rod damage detection apparatus simple structure, practicality are good, in the course of work, can not interfere on platform
Automatically the detection of drilling rod damage is carried out in the case of other devices；Solving existing detection means must be in the case where stopping boring
The problem for being detected can be damaged to drill string, effectively increase work efficiency, be particularly well-suited to the use of drilling rod damage check.
Description of the drawings
Fig. 1 is the structural representation of the present invention；
Fig. 2 is the structural representation of the lower box of the present invention；
Fig. 3 is the structural representation of the upper box of the present invention；
Fig. 4 is the structural representation of the upper box lid of the present invention；
Fig. 5 is the scheme of installation of the folding component of the present invention；
Fig. 6 is the structural representation of the detector of the present invention.
In figure：1st, base, 2, upper box lid, 3, upper box, 4, lower box, 5, folding component, 6, guide rail, 7, slide block, 8, electricity
Dynamic push rod, 9, heel teeth bar, 10, middle tooth bar, 11, folding ring, 12, bearing pin, 13, connecting plate, 14, damage detector, 15, base
Seat, 16, enclosing cover, 17, rocker piece, 18, probe, 19, roller, 20, guide plate, 21, bearing, 22, power transmission shaft, 23, heel teeth bar passes
Moving gear, 24, middle rack wheel, 25, centering rod, 26, motor, 27, idler gear, 28, motor gear, 29, chute,
30th, connecting rod.
Specific embodiment
The automatic folding type drilling rod damage detection apparatus include base 1, upper box lid 2, upper box 3, lower box 4 and folding group
Part 5.Lower box 4 is fixed with base 1.Guide rail 6 is symmetrically arranged with lower box 4, slide block 7 on guide rail 6, is slidably fitted with respectively,
Electric pushrod 8 is housed on the lower box 4 between guide rail 6, upper box 3 is arranged on lower box 3 by slide block 7；, on lower box 3
Electric pushrod 8 be connected with upper box 3, in the presence of electric pushrod 8, upper box 3 can be slided on guide rail 6 by slide block 7.
The front end of upper box 3 is opening shape, and in upper box 3, both sides are symmetrically arranged with heel teeth bar 9, is arranged between heel teeth bar 9
The termination for having middle tooth bar 10, heel teeth bar 9 and middle tooth bar 10 is equipped with folding component 5.
Folding component 5 includes that one end end of 11, two semi-rings of folding ring being made up of two semi-rings is respectively arranged with
Mounting ring, folding ring 11 are movably arranged on middle tooth bar 10 termination by bearing pin 12 by mounting ring, and the two and half of 12 both sides of bearing pin
Connecting plate 13 is respectively arranged with ring, two semi-rings of folding ring 11 are connected with the activity of 9 termination of heel teeth bar respectively by connecting plate 13
Connect；Two and half ring inner surfaces of folding ring 11 are evenly equipped with multiple damage detectors 14 respectively.
Damage detector 14 includes pedestal 15, enclosing cover 16, rocker piece 17 and probe 18, is fixed with by bolt on pedestal 15
Enclosing cover 16, is equipped with rocker piece 17 by big spring in enclosing cover 16, and one end of rocker piece 17 extends to the outer end of enclosing cover 16, rocker piece
Connecting rod is provided with 17, the termination of connecting rod is set with little spring on the connecting rod between probe 18 and rocker piece 17 equipped with probe 18.
Roller 19 is equipped with by pin on probe, on the probe 18 of 19 side of roller, meniscate guide plate 20 is provided with.
Upper box lid 2 is fixed with upper box 3, the crown center position of upper box lid 2 is slidably fitted with centering rod by slideway
25, centering rod 25 can be stretched out along slideway；Fixation is tightened by fastening bolt after stretching out.The inner surface of upper box lid 3 is fixed with motor
26,26 side of motor is equipped with idler gear 27 by mounting seat, and motor gear 28, motor gear are housed on the output shaft of motor 26
28 are connected with the engagement of idler gear 27.
The boxboard centre position of upper box 3 is provided with power transmission shaft 22 by bearing 21, and the two ends of power transmission shaft 22 are fixedly mounted with respectively
There is heel teeth rack wheel 23, heel teeth rack wheel 23 is connected with the engagement of heel teeth bar 9 respectively；Between heel teeth rack wheel 23
Power transmission shaft 22 on equipped with middle rack wheel 24；Middle rack wheel 24 respectively with idler gear 27 and center tooth
The engagement connection of bar 10.
Be provided with chute 29 on middle tooth bar 10, chute 29 built with connecting rod 30, the two ends of connecting rod 30 respectively with heel teeth bar 9
Connection.
The heel teeth bar 9 of the automatic folding type drilling rod damage detection apparatus can be realized between tooth bar in the presence of connecting rod 30
Drive mutually.During work, the device is installed on into inlet side first, then centering rod 25 is moved to into folding ring 11 and moved most
At big distance, and fixed with fastening bolt.
Then upper box 3 is moved by electric pushrod 8, is adjusted to 25 front end of centering rod and contacts with target stem.Open motor
26 motor gears 28 operate, and drive idler gear 27.Idler gear 27 drives middle rack wheel 24, so as to drive biography
Moving axis 22 and heel teeth rack wheel 23 operate.
Original state, only middle rack wheel 24 are engaged with middle tooth bar 10, the heel teeth rack wheel at two ends
23 are not engaged with heel teeth bar 9, and heel teeth rack wheel 23 dallies.As middle tooth bar 10 travels forward, folding ring 11 is progressively beaten
Open.After 10 motion certain distance of middle tooth bar, as 30 two ends of connecting rod in chute 29 are connected with heel teeth bar 9 respectively, and chute
29 is Baltimore groove, can have spacing effect to the slip of connecting rod 30, when the termination that connecting rod 30 is moved to chute 29 is blocked,
Middle tooth bar 14 drives heel teeth bar 9 to travel forward by connecting rod 30, and now folding ring 11 has reached maximum folding angle, with side
Tooth bar 9 travels forward；Heel teeth rack wheel 23 is progressively engaged with heel teeth bar 9, and three axle gears now are and tooth bar
Engagement.
In the presence of heel teeth rack wheel 23, heel teeth bar 9 moves forward；It is after a segment distance is moved, middle
Tooth bar 104 is disengaged from middle rack wheel 24, is nibbled as heel teeth rack wheel 23 now is in heel teeth bar 9
Conjunction state, and folding ring 11 now also reaches farthest displacement.10 stop motion of middle tooth bar.
Now in the presence of heel teeth bar 9 is continued to move along, two semi-rings of folding ring 11 are made in the promotion of heel teeth bar 9
Begin to shut off with, heel teeth bar 9 is continued to move along until completely closing（The guide plate 20 of damage detector 14 is formed to drill string
Enclose state, roller 19 can be rolled on drill string）, motor 26 shuts down, and device motion stops；Damage check can be passed through
Device 14 starts damage check to drill string.
After the completion of detection, motor 26 is inverted, motor 26 drives power transmission shaft 26 to invert, now due to the side at 26 two ends of power transmission shaft
Rack wheel 23 is engaged with heel teeth bar 9, and heel teeth bar 9 is moved rearwards by, and thus pulls two semi-rings of folding ring 11 to open which
Open.After heel teeth bar 9 is moved rearwards by a segment distance, middle tooth bar 10 is driven to be moved rearwards by together by connecting rod 30, now folding ring
11 open at utmost and move backward.After moving a segment distance backward, middle tooth bar 10 and middle rack wheel 24
Engage and continue to move backward, so that heel teeth bar 9 is disengaged from heel teeth rack wheel 23, heel teeth bar 9 is passed with heel teeth bar
After moving gear 23 is disengaged from；As middle tooth bar 10 is still engaged with middle rack wheel 24, with middle tooth bar 10
Continue be moved rearwards by, pull at the bearing pin 12 in the middle of folding ring 11 so as to begin to shut off.With middle tooth bar 10 continuation to
After move, folding ring 11 is completely closed, and now motor 26 is stalled.
The automatic folding type drilling rod damage detection apparatus simple structure, practicality are good, in the course of work, can not interfere flat
Automatically the detection of drilling rod damage is carried out on platform in the case of other devices；Solving existing detection means must be in the situation for stopping boring
It is lower to damage the problem for being detected to drill string, work efficiency is effectively increased, the use of drilling rod damage check is particularly well-suited to.
Claims (9)
1. a kind of automatic folding type drilling rod damage detection apparatus, including base（1）, upper box lid（2）, upper box（3）, lower box
（4）With folding component（5）, it is characterised in that：Base（1）On be fixed with lower box（4）, lower box（4）On be movably installed with
Casing（3）, upper box（3）On be fixed with upper box lid（2）, upper box lid（2）Crown center position be slidably fitted with by slideway
Centering rod（25）, described upper box（3）Front end be opening shape, upper box（3）Interior both sides are symmetrically arranged with heel teeth bar（9）, side
Tooth bar（9）Between arrange in the middle of tooth bar（10）, heel teeth bar（9）With middle tooth bar（10）Termination be equipped with folding component（5）.
2. a kind of automatic folding type drilling rod damage detection apparatus according to claim 1, it is characterised in that：Described top box
Lid（2）Inner surface be fixed with motor（26）, motor（26）Side is equipped with idler gear by mounting seat（27）, motor（26）'s
Motor gear is housed on output shaft（28）, motor gear（28）With idler gear（27）Engagement connection.
3. a kind of automatic folding type drilling rod damage detection apparatus according to claim 1, it is characterised in that：Described top box
Body（3）Boxboard centre position pass through bearing（21）Power transmission shaft is installed（22）, power transmission shaft（22）Two ends be fixed with side respectively
Rack wheel（23）, heel teeth rack wheel（23）Respectively with heel teeth bar（9）Engagement connection；Heel teeth rack wheel（23）
Between power transmission shaft（22）It is upper that middle rack wheel is housed（24）；Middle rack wheel（24）Respectively with idler gear
（27）With middle tooth bar（10）Engagement connection.
4. a kind of automatic folding type drilling rod damage detection apparatus according to claim 3, it is characterised in that：Described centre
Tooth bar（10）On be provided with chute（29）, chute（29）Built with connecting rod（30）, connecting rod（30）Two ends respectively with heel teeth bar（9）
Connection.
5. a kind of automatic folding type drilling rod damage detection apparatus according to claim 1, it is characterised in that：Described nowel
Body（4）On be symmetrically arranged with guide rail（6）, guide rail（6）On be slidably fitted with slide block（7）, guide rail（6）Between lower box（4）On
Equipped with electric pushrod（8）, described slide block（7）And electric pushrod（8）Respectively with upper box（3）Connection.
6. a kind of automatic folding type drilling rod damage detection apparatus according to claim 1, it is characterised in that：Described folding
Component（5）Including the folding ring being made up of two semi-rings（11）, folding ring（11）One end end of two semi-rings is respectively provided with
There are mounting ring, folding ring（11）Bearing pin is passed through by mounting ring（12）It is movably arranged on middle tooth bar（10）Termination, bearing pin（12）Two
Connecting plate is respectively arranged with two semi-rings of side（13）, folding ring（11）Two semi-rings pass through connecting plate（13）Respectively with side
Tooth bar（10）Termination is flexibly connected；Folding ring（11）Two and half ring inner surfaces be evenly equipped with multiple damage detectors respectively（14）.
7. a kind of automatic folding type drilling rod damage detection apparatus according to claim 6, it is characterised in that：Described damage
Detector（14）Including pedestal（15）, enclosing cover（16）, rocker piece（17）And probe（18）, pedestal（15）On be fixed with enclosing cover
（16）, enclosing cover（16）It is interior that rocker piece is equipped with by big spring（17）, rocker piece（17）One end extend to the outer end of enclosing cover（16）,
Rocker piece（17）On be provided with connecting rod, the termination of connecting rod is equipped with probe（18）, probe（18）With rocker piece（17）Between connecting rod
On be set with little spring.
8. a kind of automatic folding type drilling rod damage detection apparatus according to claim 7, it is characterised in that：Described probe
（18）It is upper that roller is equipped with by bearing pin（19）, roller（19）The probe of side（18）On be provided with guide plate（20）.
9. a kind of automatic folding type drilling rod damage detection apparatus according to claim 8, it is characterised in that：Described guiding
Plate（20）For crescent.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710021373.0A CN106526097B (en) | 2017-01-12 | 2017-01-12 | A kind of automatic folding type drilling rod damage detection apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710021373.0A CN106526097B (en) | 2017-01-12 | 2017-01-12 | A kind of automatic folding type drilling rod damage detection apparatus |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106526097A true CN106526097A (en) | 2017-03-22 |
| CN106526097B CN106526097B (en) | 2019-04-02 |
Family
ID=58335469
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710021373.0A Active CN106526097B (en) | 2017-01-12 | 2017-01-12 | A kind of automatic folding type drilling rod damage detection apparatus |
Country Status (1)
| Country | Link |
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| CN (1) | CN106526097B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109113709A (en) * | 2018-10-19 | 2019-01-01 | 中国石油大学(北京) | It is installed on the drill string damage well head on-Line Monitor Device for boring disk |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101419191A (en) * | 2008-12-08 | 2009-04-29 | 中国石油天然气股份有限公司 | Portable drill rod magnetic memory detector |
| CN201318160Y (en) * | 2008-12-23 | 2009-09-30 | 上海神开石油化工装备股份有限公司 | Magnetic memory detection apparatus |
| CN101551360A (en) * | 2009-04-22 | 2009-10-07 | 中国海洋石油总公司 | A magnetic memory detection device of oil drill rod micro-crack |
| CN101936951A (en) * | 2010-07-05 | 2011-01-05 | 中国石油集团渤海钻探工程有限公司 | Method for detecting mechanical system of drilling machine well mouth drill stem flux leakage detector |
| CN203455310U (en) * | 2013-09-22 | 2014-02-26 | 中国石油集团渤海钻探工程有限公司 | Probe mounting outer cylinder of magnetic-flux leakage defection system for pipe |
| CN204203167U (en) * | 2014-09-18 | 2015-03-11 | 中国石油大学(北京) | Drilling tool damage wellhead detecting device |
| CN104502462A (en) * | 2014-12-26 | 2015-04-08 | 四川兴天源材料检测技术有限公司 | Ultrasonic wave online inspection and flaw detection equipment for thickening region and friction weld joint of drill stem |
| CN105675714A (en) * | 2016-04-14 | 2016-06-15 | 长江大学 | Drill stem damage detecting device |
| CN206399929U (en) * | 2017-01-12 | 2017-08-11 | 长江大学 | A kind of drilling rod damage detection apparatus |
-
2017
- 2017-01-12 CN CN201710021373.0A patent/CN106526097B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101419191A (en) * | 2008-12-08 | 2009-04-29 | 中国石油天然气股份有限公司 | Portable drill rod magnetic memory detector |
| CN201318160Y (en) * | 2008-12-23 | 2009-09-30 | 上海神开石油化工装备股份有限公司 | Magnetic memory detection apparatus |
| CN101551360A (en) * | 2009-04-22 | 2009-10-07 | 中国海洋石油总公司 | A magnetic memory detection device of oil drill rod micro-crack |
| CN101936951A (en) * | 2010-07-05 | 2011-01-05 | 中国石油集团渤海钻探工程有限公司 | Method for detecting mechanical system of drilling machine well mouth drill stem flux leakage detector |
| CN203455310U (en) * | 2013-09-22 | 2014-02-26 | 中国石油集团渤海钻探工程有限公司 | Probe mounting outer cylinder of magnetic-flux leakage defection system for pipe |
| CN204203167U (en) * | 2014-09-18 | 2015-03-11 | 中国石油大学(北京) | Drilling tool damage wellhead detecting device |
| CN104502462A (en) * | 2014-12-26 | 2015-04-08 | 四川兴天源材料检测技术有限公司 | Ultrasonic wave online inspection and flaw detection equipment for thickening region and friction weld joint of drill stem |
| CN105675714A (en) * | 2016-04-14 | 2016-06-15 | 长江大学 | Drill stem damage detecting device |
| CN206399929U (en) * | 2017-01-12 | 2017-08-11 | 长江大学 | A kind of drilling rod damage detection apparatus |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109113709A (en) * | 2018-10-19 | 2019-01-01 | 中国石油大学(北京) | It is installed on the drill string damage well head on-Line Monitor Device for boring disk |
| CN109113709B (en) * | 2018-10-19 | 2023-10-17 | 中国石油大学(北京) | Drill string damage wellhead on-line monitoring device mounted on drilling disc surface |
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| Publication number | Publication date |
|---|---|
| CN106526097B (en) | 2019-04-02 |
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