CN200963697Y - Operation pipeline trepanning machine - Google Patents

Operation pipeline trepanning machine Download PDF

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Publication number
CN200963697Y
CN200963697Y CN 200620052275 CN200620052275U CN200963697Y CN 200963697 Y CN200963697 Y CN 200963697Y CN 200620052275 CN200620052275 CN 200620052275 CN 200620052275 U CN200620052275 U CN 200620052275U CN 200963697 Y CN200963697 Y CN 200963697Y
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CN
China
Prior art keywords
gear
worm
supporting arm
fixed
shell
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.)
Expired - Fee Related
Application number
CN 200620052275
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Chinese (zh)
Inventor
甘兰芳
陈远明
谢星明
张前柏
李光杰
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Loudi Yongchang Energy Environment Protection Technology Development Co Ltd
Lysteel Co Ltd
Original Assignee
Loudi Yongchang Energy Environment Protection Technology Development Co Ltd
Lysteel Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Loudi Yongchang Energy Environment Protection Technology Development Co Ltd, Lysteel Co Ltd filed Critical Loudi Yongchang Energy Environment Protection Technology Development Co Ltd
Priority to CN 200620052275 priority Critical patent/CN200963697Y/en
Application granted granted Critical
Publication of CN200963697Y publication Critical patent/CN200963697Y/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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Abstract

The utility model discloses a running pipeline hole making machine for making holes on pipelines of DN900-DN1800. The running pipeline hole making machine comprises two parts of hole-boring part and hole-making part; the hole-boring part and the hole-making part are all arranged on the big gear 40, the big gear 40 is integrated to an entire body together with ball bearings 28, sealing ring 29F, and pressing wheel support 27; the entire body is connected to a reducing pipe 45 through a flange support base 30; the reducing pipe 45 is connected to the valve 46 through bolts; the valve 46 is connected to a short pipe 48 through bolts; the short pipe 48 is fixed on the main pipe 49 which is to be made a hole. The hole making machine is of two-arm boring-milling tool milling type; the work efficiency of hole making can be enhanced by 1-2 times; due to the combination of boring and milling, the remain of the edge of the pipe is small, the resistance of pipe running is small; the structure is reasonable, the assembly and adjustment work is convenient; due to the structure of support arm, the rigidity of the boring-milling tool is high, the pipe to be made a hole can be expanded to DN1800 range.

Description

The in-service pipeline tapping machine
Technical field
It is the in-service pipeline tapping machine of perforate on the band gas of DN900~DN1800 or the band liquid pipeline that the utility model relates to a kind of being used at caliber.
Background technology
To the pipeline under the running status, especially to (as the hole of opening different size on the DN900~DN1800) is that the pipeline engineering technical staff studies and a difficult problem that needs to solve for it at the in-service pipeline of transport gas or coal gas or water or oil always, one of difficult problem is an operating safety, as perforate on the pipeline that this inflammable or toxic gas of natural gas or coal gas is arranged or adorn arm in addition, if misoperation very easily causes security incident.Before the utility model, be used for its planform of the employed tapping machine of big caliber upper shed and be divided into two kinds substantially: a kind of is a bucket cutter formula tapping machine, and another kind of is that single armed bores milling cutter formula tapping machine.
Bucket cutter formula tapping machine generally is used on the following pipeline of DN600, its cutter heaviness, and fragile blade in the perforate in case accidents happened, must stop production earlier and reorganize operation in tap operation, and consequence is comparatively serious, is absolutely unsafe.
Single armed bores perforate on the pipeline that the present maximum of milling cutter formula tapping machine is used for DN1400, its weak point is that cantilever is long, it is main can only adopting drilling, the ducting side allowance is excessive, resistance strengthens influences the pipeline operation, adopt two groups of pellets shot from a slingshot and the sealing of two places because of combining between gear wheel and the supporting base again, processing assembling difficulty, simultaneously in fastening structural shape adjustment trouble.It is investigated to be used in the also relevant report of tapping machine on DN1800 or the bigger caliber, especially also be in development so that adorn the tapping machine of arm in addition for perforate on the big caliber of band gas, the operation of band liquid.
Summary of the invention
In order to solve the problem that prior art exists, the utility model provides a kind of and has improved perforate work efficiency, processing or assembling or easy to adjust can open the in-service pipeline tapping machine in any aperture safely on the pipeline of DN900~DN1800 operation gas or liquid.
For achieving the above object, the technical solution of the utility model is: in-service pipeline tapping machine described in the utility model is made up of boring and perforate two parts, boring is installed on the gear wheel 40 with the functor of perforate, gear wheel 40 is combined into integral body by rotating bearing ball 28, sealing ring 29F, contact roller support 27, the integral body of being formed is through flange bearing 30 reduced pipes 45, reduced pipe 45 usefulness bolts connection valve 46, valve 46 usefulness bolts connection short tube 48, short tube 48 is connected on the person in charge 49 who treats perforate.
Motor 1 connects worm and gear 2 by axle sleeve, worm and gear 2 connects drive link 17 by internal spline, the lower end of drive link 17 is fixed with drive link spline housing 43, drive link spline housing 43 connects drilling rod 16 down by internal spline, the top of following drilling rod 16 is fixed with down drill rod thread cover 14, drilling rod outer sliding sleeve 15 down, wherein descend drilling rod outer sliding sleeve 15 to be used for down drilling rod 16 and locatees and drilling rod 16 is slided up and down along drive link 17 inwalls.Bottom at following drilling rod 16 is connected with center bit 35, and drill bit locking plate 34 is arranged on the center bit 35.Following drill rod thread cover 14 utilizes internal thread to connect and goes up drilling rod 3, the top of last drilling rod 3 is fixed with the first half of clutch 4, the Lower Half of clutch 4 is fixed on the lower end of thread bush 6, spigot nut 5 and clamp nut 11 are fixed on the top of thread bush 6 by screw thread, and thrust bearing 12 and spring 13 are housed between spigot nut 5 and the thread bush 6.Handwheel 7 is fixed on the top of screw mandrel 10, and location and the sealing of sealing ring 9 of screw mandrel 10 by thrust bearing 8 avoids gas (as coal gas) or liquid (as water or oil) excessive.The top cylindrical of supporting arm axle 19 has supporting arm axle outer sliding sleeve 18, makes supporting arm axle 19 and shell 44 location and supporting arm axle 19 is slided up and down along the inwall of shell 44 by supporting arm axle outer sliding sleeve 18, and shell 44 is fixed on the center of gear wheel 40.Slide by the supporting arm axle inner sliding sleeve 36 and the location, outer of drive link 17 in the bottom of supporting arm axle 19, the lower end of supporting arm axle 19 links to each other with supporting arm 33 respectively through connecting bolt, and an end of supporting arm 33 respectively be loaded on the supporting arm bearing 31 or the 31A that bore on milling cutter 32 or the 32A and link to each other, bore milling cutter 32 or 32A and be connected the lower end of boring cutter spindle 21 or 21A, brill cutter spindle outer sliding sleeve 20 or 20A are equipped with in the top of boring cutter spindle 21 or 21A, make brill cutter spindle 21 or 21A and brill cutter spindle shell 22 or 22A location and brill cutter spindle 21 or 21A are slided up and down by boring cutter spindle outer sliding sleeve 20 or 20A, bore cutter spindle shell 22 or 22A symmetrical expression and be fixed on the gear wheel 40. Motor 24 or 24A connect worm and gear 23 or 23A by axle sleeve, and worm and gear 23 or 23A connect brill cutter spindle 21 or 21A by internal spline.Handwheel 41 connects worm and gear 42, and worm and gear 42 connects supporting arm axle 19 by internal thread.
Circumference handwheel 39 connects worm and gear 38, and worm and gear 38 connects pinion 37, and pinion 37 is meshing with each other with gear wheel 40, and pinion 37 is fixed on the flange bearing 30 by support.Handwheel 26 links to each other with contact roller 25, handwheel 26 is by 27 one-tenth uniform being fixed on the gear wheel 40 of periphery of contact roller support, gear wheel 40 is landed on the flange bearing 30 by rotating bearing ball 28, and guarantees that through sealing ring 29F gas (as coal gas) or liquid (as oil) are not excessive.
For the sealing that makes tapping machine fine, be provided with sealing ring, cylindrical at the worm gear upper and lower side of worm and gear 2 has sealing ring 29 or 29A, between the worm gear upper and lower side cylindrical of worm and gear 42 and shell 44, sealing ring 29B or 29C are arranged, at the worm gear upper and lower side cylindrical of worm and gear 23 or 23A and bore between cutter spindle shell 22 or the 22A sealing ring 29D or 29D ', 29E or 29E ' are arranged.
Adopt a kind of in-service pipeline tapping machine that as above technical scheme provides compared with prior art, can obtain following beneficial effect:
1. this tapping machine is that both arms bore milling cutter milling formula, and the operating efficiency of perforate can improve 1-2 doubly;
2. owing to adopted brill to mill combination, the ducting side allowance is little, and the pipeline running resistance is little;
3. rational in infrastructure, the processing assembling is with easy to adjust;
4. owing to adopted supporting arm structure, bore the cutter spindle good rigidly, so the pipeline of perforate can expand the DN1800 scope to.
Description of drawings
Fig. 1 is the package assembly schematic diagram of in-service pipeline tapping machine described in the utility model, also is Figure of abstract of the present utility model.
Fig. 2 is the A place enlarged diagram of Fig. 1.
Fig. 3 is the operating mode schematic diagram of in-service pipeline tapping machine described in the utility model.
Fig. 4 is the used worm and gear structural representation of this case.
The specific embodiment
Below in conjunction with accompanying drawing the novel specific embodiment of this reality is described in further detail
In-service pipeline tapping machine described in the utility model divide two partly (i.e. branch two procedures) form: to the person in charge's 49 borings of needing perforate partly (being drilling operating) with to being responsible for 49 perforates of opening required specification aperture partly (being the perforate operation), the functor that will have boring and perforate is installed on the gear wheel 40.
Boring partly comprises motor 1, worm and gear 2 or 42, last drilling rod 3, clutch 4, spigot nut 5, thread bush 6, handwheel 7, thrust bearing 8 or 12, sealing ring 9 or 29A or 29B or 29C, screw mandrel 10, clamp nut 11, spring 13, following drill rod thread cover 14, following drilling rod outer sliding sleeve 15, following drilling rod 16, drive link 17, supporting arm axle outer sliding sleeve 18, supporting arm axle 19, drill bit locking plate 34, center bit 35, supporting arm axle inner sliding sleeve 36, handwheel 41, drive link spline housing 43, shell 44.Motor 1 connects worm and gear 2 by axle sleeve, worm and gear 2 connects drive link 17 by internal spline, cylindrical at the worm gear upper and lower side of worm and gear 2 has sealing ring 29 or 29A, the lower end of drive link 17 is fixed with drive link spline housing 43, drive link spline housing 43 connects drilling rod 16 down by internal spline, drive link 17 can drive drilling rod 16 rotations down through drive link spline housing 43 like this, and the rotation of following drilling rod 16 can drive and be positioned at center bit 35 rotations of drilling rod 16 lower ends down.The top of following drilling rod 16 is fixed with down drill rod thread cover 14, drilling rod outer sliding sleeve 15 down, and being connected in down on the center bit 35 of drilling rod 16 bottoms has drill bit locking plate 34, and connection can be adopted and be threaded etc.Following drill rod thread cover 14 connects through internal thread goes up drilling rod 3, and the top of last drilling rod 3 is fixed with the first half of clutch 4, and the Lower Half of clutch 4 is fixed on the lower end of thread bush 6, and the effect of clutch 4 is to transmit the moment between drilling rod 3 and the spring 13.Spigot nut 5, clamp nut 11 are fixed on the top of thread bush 6 by screw thread, and thrust bearing 12 and spring 13 are housed between spigot nut 5 and the thread bush 6.Handwheel 7 is fixed on the top of screw mandrel 10, and there are thrust bearing 8, sealing ring 9 in outer, screw mandrel 10 upper end.Screw mandrel 10 can be avoided gas or liquid spill by the location of thrust bearing 8 and the sealing of sealing ring 9.Top cover 44A links to each other with shell 44 with connecting bolt, and shell 44 usefulness connecting bolts are fixed on the gear wheel 40.There is supporting arm axle outer sliding sleeve 18 outer, top of supporting arm axle 19, there is supporting arm axle inner sliding sleeve 36 on the edge in the bottom of supporting arm axle 19, the lower end of supporting arm axle 19 links to each other with supporting arm 33 through connecting bolt, and an end of supporting arm 33 links to each other with supporting arm bearing 31 or 31A on being loaded on brill milling cutter 32 or 32A.Handwheel 41 connects worm and gear 42, and worm and gear 42 connects supporting arm axle 19 by internal thread.
When need are responsible for 49 surface drilling with 35 pairs of center bits (as shown in Figure 3), starter motor 1, motor 1 drives drive link 17 by worm and gear 2 and rotates, drive link 17 drilling rod 16 under drive link spline housing 43 drives rotates, and drill rod thread cover 14 was along the scroll rotation about in the of 3 of last drilling rod under following drilling rod 16 passed through.Instantly the center bit 35 that 16 times enforcements of drilling rod are loaded on down drilling rod 16 lower ends touches when being responsible for 49 outer wall, following drilling rod 16 can force drilling rod 3 up, last drilling rod 3 separates clutch 4, clutch 4 first halves are compressed spring 13, this moment, this moment, operating personnel rotated handwheel 7 because the effect of thrust bearing 12 can only be dallied drilling rod 16, handwheel 7 drives screw mandrel 10 and rotates synchronously, and screw mandrel 10 makes thread bush 6 descending.Because it is whole that spigot nut 5, thread bush 6 and clamp nut 11 form, in the keyway of the key wedging shell 44 on the spigot nut 5, the effect of thrust bearing 12 in addition causes drilling rod 3 and center bit 35 rotations to be advanced to the surface drilling of being responsible for 49 downwards.When center drill bit 35 passed the person in charge 49 wall certain distance, the drill bit locking plate 34 on the center bit 35 was opened voluntarily to pin under gravity or centrifugal action and is responsible for 49 steel plate.Stop motor 1 and rotate, boring finishes.
Bore cutter spindle shell 22 or 22A and be fixed on the gear wheel 40 with the connecting bolt symmetry, be equipped with in boring cutter spindle shell 22 or 22A and bore cutter spindle 21 or 21A, brill milling cutter 32 or 32A are connected (as be threaded etc.) with the lower end of brill cutter spindle 21 or 21A.And the distance of boring cutter spindle shell 22, both central axis of 22A decides with the hole of opening much specifications as required on the person in charge 49, can adjust its relative position to adapt to the usefulness of all size pipeline, therefore can be fixed with the position, hole that N (integer of N 〉=1) group is bored cutter spindle shell 22,22A on gear wheel 40, the time spent is not sealed.Intake and exhaust (liquid) pipe also is housed on gear wheel 40.Motor 24 or 24A connect worm and gear 23 or 23A by axle sleeve, and worm and gear 23 or 23A connect brill cutter spindle 21 or 21A by internal spline.At the worm gear upper and lower side of worm and gear 23 or 23A and bore sealing ring 29D or 29D ' and 29E or 29E ' are arranged between cutter spindle shell 22 or the 22A.Handwheel 41 connects worm and gear 42, and worm and gear 42 connects supporting arm axle 19 by internal thread.Between the worm gear upper and lower side cylindrical of worm and gear 42 and shell 44, sealing ring 29B or 29C are arranged.Circumference handwheel 39 worm and gears 38, worm and gear 38 pinions 37, pinion 37 is engagement mutually with gear wheel 40, pinion 37 is fixed on the flange bearing 30 through support.Described worm and gear 38 is a prior art, and product can be bought in market.Handwheel 26 contact rollers 25, contact roller 25 is fixed on the flange bearing 30 through contact roller support 27.And handwheel 26 evenly is fixed on by contact roller support 27 on the periphery of gear wheel 40, and the thrust of 25 pairs of gear wheels 40 of contact roller is adjustable.Rotate handwheel 26 and can rotate gear wheel 40 at a slow speed again equably, gear wheel 40 is landed on the flange bearing 30 through rotating bearing ball 28, between flange bearing 30 and the gear wheel 40 sealing ring 29F is arranged.Flange bearing 30 usefulness bolts connection reduced pipe 45, reduced pipe 45 usefulness bolts are contained on the valve 46, the usefulness that the flashboard 47 in the valve 46 cuts out or opens for valve 46, flashboard 47 is opened during tapping machine work, and tapping machine flashboard 47 is after hours closed.Valve 46 usefulness bolts connection short tube 48, short tube 48 is connected in to be responsible on 49.
Described worm and gear 2 or 42 23 or 23A be voluntarily the design product (as shown in Figure 4), it is made of worm gear 50, worm screw 51, bearing 52 or 52A, sealing ring 53 or 53A, shell 54 or 54A, worm gear 50, worm screw 51 mesh each other, and bearing 52 or 52A and sealing ring 53 or 53A are housed between worm screw 51 and shell 54 or 54A.
When need were opened the hole of required specification with brill milling cutter 32 or 32A on the person in charge 49, selected earlier brill cutter spindle 22 or the symmetric position of 22A on gear wheel 40 were also fixed, and simultaneously other symmetrical holes on the gear wheel 40 are shut in order to avoid gas or liquid spill.Operating personnel rotate handwheel 41, handwheel 41 makes supporting arm axle 19 descending by worm and gear 42, the descending drive supporting arm 33 of supporting arm axle 19, brill milling cutter 32 or 32A and brill cutter spindle 21 or 21A are also descending, touch (as shown in Figure 3) when being responsible for 49 roof when boring milling cutter 32 or 32A, starter motor 24 or 24A, motor 24 or 24A drive by worm and gear 23 or 23A and bore cutter spindle 21 or 21 and rotate, and the rotation of boring cutter spindle 21 or 21A drives the brill milling cutter 32 that is attached thereto or 32A and rotates wall boring to being responsible for 49.When be responsible for 49 drilled during through certain depth (its degree of depth can by the camera or television monitoring device or the manhole inspection that are loaded on the gear wheel 40), this moment, operating personnel rotated circumference handwheel 39, circumference handwheel 39 drives gear wheel 40 by worm and gear 38 and slowly rotates, make brill milling cutter 32 or 32A make circular motion and the milling person in charge 49 tube wall (be responsible for 49 and can be steel pipe) along the cylindrical of being responsible for 49, owing to be responsible for 49 tube wall camber track, when boring milling cutter 32 or 32A and mill the certain distance or the degree of depth, rotate handwheel 41 and make brill milling cutter 32 or 32A feed, mill when being responsible for 49 tube wall minimum point (be gear wheel 40 pass by circumference 90 °) then reversing handle 41 and make and bore milling cutter 32 or 32A withdrawing and get back to and be responsible for 49 pipe top (having rotated 180 °) when boring milling cutter 32 or 32A corresponding to gear wheel 40 up to boring milling cutter 32 or 32A, be that perforate finishes, disable motor 24,24A, to bore milling cutter 32 or 32A and rotate 90 °, make the lowest part that bores the milling cutter 32 or the 32A aligning person in charge 49, rotating handwheel 41 allows brill milling cutter 32 or 32A and supporting arm 33 return to original position, allow motor 1 counter-rotating make rising with the reverse rotation of following drilling rod 16 of drill bit locking plate 34 pinnings again from being responsible for 49 steel plates that bore under milling, steel plate under brill mills rises to flashboard 47 when above, disable motor 1, flashboard 47 in the valve-off 46, and open blast pipe on the gear wheel 40, when confirming to be responsible for 49 no gases or leak of liquid, be dismountable in-service pipeline tapping machine described in the utility model (being main frame), realize the described purpose of this case.

Claims (2)

1, a kind of in-service pipeline tapping machine is characterized in that: motor (1) connects worm and gear (2) by axle sleeve, and worm and gear (2) connects drive link (17) by internal spline, at the cylindrical of the worm gear upper and lower side of worm and gear (2) sealing ring (29,29A) is arranged; The lower end of drive link (17) is fixed with drive link spline housing (43), drive link spline housing (43) connects drilling rod (16) down by internal spline, the top of following drilling rod (16) is fixed with down drill rod thread cover (14), following drilling rod outer sliding sleeve (15), and being connected in down on the center bit (35) of drilling rod (16) bottom has drill bit locking plate (34); Following drill rod thread cover (14) connects through internal thread goes up drilling rod (3), and the top of last drilling rod (3) is fixed with the first half of clutch (4), and the Lower Half of clutch (4) is fixed on the lower end of thread bush (6); Spigot nut (5), clamp nut (11) are fixed on the top of thread bush (6) by screw thread, and thrust bearing (12), spring (13) are housed between spigot nut (5) and the thread bush (6); Handwheel (7) is fixed on the top of screw mandrel (10), and there are thrust bearing (8), sealing ring (9) in outer, screw mandrel (10) upper end; There is supporting arm axle outer sliding sleeve (18) outer, top of supporting arm axle (19), there is supporting arm axle inner sliding sleeve (36) on the edge in the bottom of supporting arm axle (19), the lower end of supporting arm axle (19) links to each other with supporting arm (33) through connecting bolt, and an end of supporting arm (33) links to each other with supporting arm bearing (31,31A) on being loaded on brill milling cutter (32,32A); Handwheel (41) connects worm and gear (42), and worm and gear (42) connects supporting arm axle (19) by internal thread, between the worm gear upper and lower side cylindrical of worm and gear (42) and shell (44) sealing ring (29B, 29C) is arranged; Top cover (44A) links to each other with shell (44) with connecting bolt, and shell (44) is fixed on the gear wheel (40) with connecting bolt; Boring cutter spindle shell (22,22A) is fixed on the gear wheel (40) with the connecting bolt symmetry, in boring cutter spindle shell (22,22A), be equipped with and bore cutter spindle (21,21A), the top of boring cutter spindle (21,21A) is equipped with and is bored cutter spindle outer sliding sleeve (20,20A), and the lower end of boring milling cutter (32,32A) and brill cutter spindle (21,21A) is connected; Motor (24,24A) connects worm and gear (23,23A) by axle sleeve, and worm and gear (23,23A) connects by internal spline and bores cutter spindle (21,21A); At the worm gear upper and lower side cylindrical of worm and gear (23,23A) and bore between the cutter spindle shell (22,22A) sealing ring (29D, 29D ', 29E, 29E ') is arranged; Circumference handwheel (39) connection worm and gear (38), worm and gear (38) connection pinion (37), pinion (37) is meshing with each other with gear wheel (40), and pinion (37) is fixed on the flange bearing (30) through support; Handwheel (26) connection contact roller (25), contact roller (25) is fixed on the flange bearing (30) through contact roller support (27), gear wheel (40) is landed on the flange bearing (30) through rotating bearing ball (28), between flange bearing (30) and the gear wheel (40) sealing ring (29F) is arranged, flange bearing (30) joins reduced pipe (45) with bolt, reduced pipe (45) is contained on the valve (46) with bolt, and valve (46) joins short tube (48) with bolt, and short tube (48) is connected on the person in charge (49).
2, in-service pipeline open rolling machine according to claim 1, it is characterized in that: worm and gear (2,42,23,23A) is made of worm gear (50), worm screw (51), bearing (52,52A), sealing ring (53,53A) and shell (54,54A), worm gear (50), worm screw (51) mesh each other, and bearing (52,52A), sealing ring (53,53A) are housed between worm screw (51) and shell (54,54A).
CN 200620052275 2006-09-18 2006-09-18 Operation pipeline trepanning machine Expired - Fee Related CN200963697Y (en)

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Application Number Priority Date Filing Date Title
CN 200620052275 CN200963697Y (en) 2006-09-18 2006-09-18 Operation pipeline trepanning machine

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Application Number Priority Date Filing Date Title
CN 200620052275 CN200963697Y (en) 2006-09-18 2006-09-18 Operation pipeline trepanning machine

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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104174894A (en) * 2014-07-28 2014-12-03 天津二十冶建设有限公司 On-line drilling method for gas instrument pressure obtaining pipe
CN106041175A (en) * 2016-07-25 2016-10-26 无锡市曙光高强度紧固件有限公司 Punching machine for hardware parts
CN108127144A (en) * 2018-01-23 2018-06-08 蚌埠捷顺机器有限公司 A kind of tapping equipment of automotive hub valve port
CN109681027A (en) * 2019-02-01 2019-04-26 北京清源华建环境科技有限公司 A kind of locker for rinsing door rinses door and control method
CN110227835A (en) * 2019-04-15 2019-09-13 黄晓明 Pipeline tapping bores, pipeline tapping device and its application method

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104174894A (en) * 2014-07-28 2014-12-03 天津二十冶建设有限公司 On-line drilling method for gas instrument pressure obtaining pipe
CN106041175A (en) * 2016-07-25 2016-10-26 无锡市曙光高强度紧固件有限公司 Punching machine for hardware parts
CN106041175B (en) * 2016-07-25 2018-01-19 无锡市曙光高强度紧固件有限公司 A kind of hardware puncher
CN108127144A (en) * 2018-01-23 2018-06-08 蚌埠捷顺机器有限公司 A kind of tapping equipment of automotive hub valve port
CN109681027A (en) * 2019-02-01 2019-04-26 北京清源华建环境科技有限公司 A kind of locker for rinsing door rinses door and control method
CN109681027B (en) * 2019-02-01 2023-09-22 湖南清源华建环境科技有限公司 Locking device for flushing door, flushing door and control method
CN110227835A (en) * 2019-04-15 2019-09-13 黄晓明 Pipeline tapping bores, pipeline tapping device and its application method
CN110227835B (en) * 2019-04-15 2021-08-20 黄晓明 Pipeline opening device and using method thereof

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GR01 Patent grant
C17 Cessation of patent right
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20071024

Termination date: 20091019