CN101288916B - Polyethylene tube scraper - Google Patents

Polyethylene tube scraper Download PDF

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Publication number
CN101288916B
CN101288916B CN2008100616906A CN200810061690A CN101288916B CN 101288916 B CN101288916 B CN 101288916B CN 2008100616906 A CN2008100616906 A CN 2008100616906A CN 200810061690 A CN200810061690 A CN 200810061690A CN 101288916 B CN101288916 B CN 101288916B
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CN
China
Prior art keywords
guide rod
bracing frame
threaded guide
polyethylene tube
spanner
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
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CN2008100616906A
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Chinese (zh)
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CN101288916A (en
Inventor
郑津洋
施建峰
秦永泉
李翔
郭伟灿
徐平
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Zhejiang University ZJU
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Zhejiang University ZJU
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Publication date
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Priority to CN2008100616906A priority Critical patent/CN101288916B/en
Publication of CN101288916A publication Critical patent/CN101288916A/en
Application granted granted Critical
Publication of CN101288916B publication Critical patent/CN101288916B/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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Abstract

The invention relates to a peeling device for once eliminating an oxidizing layer on the outer surface of the end part of pipes, aiming to provide a peeler for qualitatively eliminating the polyethylene pipe oxidizing layer on the outer surface of pipes more conveniently and efficiently and faster. The peeler for eliminating the polyethylene pipe oxidizing layer comprises a knife tool, a power device, a movable converting device, a knife tool and pipe positioning device. The power device comprises a spanner and a threaded guide rod, thus forming a screw transmission structure; the movable converting device comprises a one-way push bearing and a push plate; the knife tool and pipe positioning device comprises a support frame and a rubber sleeve; wherein: the spanner is covered on the end part of the threaded guide rod which is matched with the spanner through a spanner hole; the threaded guide rod is connected with a support plate through guide screw thread; the push plate and the threaded guide rod are fixed together through the one-way push bearing and a blocking cover on the shaft end; the rubber sleeve is connected and fixed on the push plate through a bolt; the knife tool is connected and fixed on the support frame by the bolt. The peeling device of the invention has the advantages of simple structure and convenient use, thus effectively improving the work efficiency and the peeling surface quality of the pipe.

Description

Polyethylene tube scraper
Technical field
The present invention relates to a kind of disposable instrument of scraping of removing pipe fitting end outer surface oxide layer.More particularly, the present invention relates to a kind of pipeline scraper that in PE pipe electrofusion welding termination process, strikes off polyethylene tube outer surface oxide layer.
Background technology
It is one of the most frequently used connected mode of polyethylene pipe that electric smelting connects, and in the welding process, the existence of pipe outer surface oxide layer will seriously hinder the diffusion of vinyl polymer chain in the welding process, thereby reduce strength of welded joint greatly.Therefore, before carrying out the electric smelting welding, must first oxide skin scrape off tubing top layer fusion welded zone.
At present, it generally is to adopt dull and stereotyped scraper in using that the PE pipe electrofusion welding connects engineering, strikes off the pipe fitting oxide layer manually, wastes time and energy, can't ensure the quality of products inefficiency the time.Because the blade of dull and stereotyped scraper and the outside wall surface of pipe fitting belong to substantially and contact, so deep mixed cuts in a large number can occur on the pipe fitting surface after scraping removing oxide layer, this causes the weld defect of electric smelting welding point easily, thereby influences joint performance; The dull and stereotyped scraper of this external use is removed in the process of outer surface of pipe fittings oxide layer, the not round problem of rear tubular member occurs scraping through regular meeting, will have a strong impact on the quality of welding point.According to statistics, during workman's operate as normal, strike off a diameter 160mmPE pipe fitting surface oxide layer and take and be about more than the 10min, and scrape the rear surface quality and can't guarantee.Do not see the development report that relevant device is arranged both at home and abroad.
Higher and the blade rapid wear of dull and stereotyped scraper general cost easily gets rusty, in the practical engineering application, certain operations personnel directly strike off the pipe fitting oxide layer with stone, cutter or the porcelain fragment etc. of band sword, though provide cost savings, but wasted more time and manpower, and the rear tubular member surface quality is scraped in very difficult control.
Summary of the invention
The objective of the invention is to overcome deficiency of the prior art, the polyethylene tube scraper that scrapes off the pipe fitting surface oxide layer that provides a kind of more convenient and quicker efficiently to guarantee the quality.
The present invention is achieved by the following technical solutions:
A kind of polyethylene tube scraper comprises cutter; Also comprise power set, movement transforming device, cutter and pipe fitting positioner; Power set comprise spanner, threaded guide rod, constitute the screw drive structure, and movement transforming device comprises single thrust bearing, push pedal, and cutter and pipe fitting positioner comprise bracing frame, rubber sleeve;
Wherein: spanner is enclosed within the threaded guide rod end that cooperates with it by driving hole, threaded guide rod is connected with bracing frame by guide thread, push pedal and threaded guide rod are fixed together by single thrust bearing and axle head door, and rubber sleeve is fastened in the push pedal by bolt; Cutter is fastened on the bracing frame by bolt.
As a kind of improvement, the claw-like structure that support frame as described above is made up of three 60 ° of circular arc barrels.
As further improvement, described cutter comprises three blades, the overlapping in twos installation of blade end.
As further improvement, also be provided with the screw thread circular boop on the support frame as described above, the screw thread circular boop passes the C shape gusset annular that is welded on the bracing frame and is arranged on the bracing frame outer wall.
As further improvement, described threaded guide rod end also is provided with through hole, and the hole axle is axially vertical with threaded guide rod, is inserted with bearing pin in the through hole.
As further improvement, described single thrust bearing is installed in the upper and lower surface symmetry of push pedal, and the axle head door of threaded guide rod afterbody is fixed single thrust bearing by bolt.
As further improvement, the middle part near threaded guide rod between described spanner and bracing frame is provided with guide thread; This guide thread directly is welded on the bracing frame.
As further improvement, be provided with guide thread between support frame as described above and the single thrust bearing, this guide thread is connected with bracing frame by gusset.
As further improvement, described gusset is the bar shaped gusset, is connected by bolt with bracing frame or directly is welded on the bracing frame.
Compared with prior art, no matter be from scraping rear tubular member surface quality aspect or from the pipe cleaning operating aspect, the present invention scrapes piping tool than tradition significant advantage:
1, the time of striking off surface oxide layer shortens, and has improved operating efficiency;
2, the screw thread circular boop can cause the micro-deformation of bracing frame, and the control cutter is more accurately easy in the penetraction depth on pipe fitting surface;
3, by the power set application of force, saved manpower;
4, the cutting-in amount of cutter is identical, can effectively control the pipe fitting surface and scrape the back quality.
Description of drawings
Fig. 1: the overall structure generalized section of the specific embodiment of the invention;
Fig. 2: the overall structure A-A of the specific embodiment of the invention is to generalized section;
Fig. 3: spanner and threaded guide rod is connected cross-sectional schematic in the specific embodiment of the invention;
Fig. 4: push pedal is connected cross-sectional schematic with rubber sleeve in the specific embodiment of the invention;
Fig. 5: cutter is installed connection diagram in the specific embodiment of the invention.
1-spanner among the figure, 2-threaded guide rod, 3-guide thread, 4-bracing frame, 5-single thrust bearing, 6-C shape gusset, 7-cutter, 8-screw thread circular boop, 9-rubber sleeve, 10-push pedal, 11-bar shaped gusset.
The specific embodiment
With reference to the accompanying drawings, will describe the present invention below.
A kind of polyethylene tube scraper comprises cutter 7; Also comprise power set, movement transforming device, cutter 7 and pipe fitting positioner; Power set comprise spanner 1, threaded guide rod 2, constitute the screw drive structure, and movement transforming device comprises single thrust bearing 5, push pedal 10, and cutter 7 and pipe fitting positioner comprise bracing frame 4, rubber sleeve 9;
Wherein: spanner 1 is enclosed within threaded guide rod 2 ends that cooperate with it by driving hole, threaded guide rod 2 is connected with bracing frame 4 by guide thread, push pedal 10 and threaded guide rod 2 are fixed together by single thrust bearing 5 and axle head door, and rubber sleeve 9 is fastened in the push pedal 10 by bolt; Cutter 7 is fastened on the bracing frame 4 by bolt.
The claw-like structure that support frame as described above 4 is made up of three 60 ° of circular arc barrels; Also be provided with screw thread circular boop 8 on the bracing frame 4, screw thread circular boop 8 passes C shape gusset 6 annulars that are welded on the bracing frame 4 and is arranged on bracing frame 4 outer walls; 4 middle parts near threaded guide rod 2 of spanner 1 and bracing frame are provided with guide thread 3, and this guide thread 3 directly is welded on the bracing frame 4; Be provided with guide thread 3 between bracing frame 4 and the single thrust bearing 5, this guide thread 3 is connected with bracing frame 4 by bar shaped gusset 11; Bar shaped gusset 11 is connected by bolt with bracing frame 4 or directly is welded on the bracing frame 4; Cutter 7 comprises three blades, the overlapping in twos installation of blade end; Threaded guide rod 2 ends also are provided with through hole, and the hole axle is axially vertical with threaded guide rod 2, is inserted with bearing pin in the through hole, and spanner 1 comes off when preventing work; Single thrust bearing 5 is installed in the upper and lower surface symmetry of push pedal 10, and the axle head door of threaded guide rod 2 afterbodys is fixing with single thrust bearing 5 by bolt.
In order to further specify the use of structure of the present invention, it is as follows now will to use pipe cleaning process prescription of the present invention:
In the pipe cleaning process, rotate spanner 1 by hand, by the rotation of threaded guide rod 2 and the rotation of single thrust bearing 5, change the motion of rotation into axially-movable along pipe, be illustrated in figure 3 as the cross-sectional schematic that is connected of spanner 1 and threaded guide rod 2.
Pipe fitting is enclosed within on the rubber sleeve 9, the one, be beneficial to the pipe fitting plane positioning, the 2nd, utilize the push pedal 10 that is fixed on threaded guide rod 2 afterbodys to form pipe fitting and the relative motion that is fixed on the cutter 7 on the bracing frame 4, and can produce the relative motion that frictional resistance prevents pipe fitting and push pedal 10, be illustrated in figure 4 as push pedal 10 and be connected cross-sectional schematic with rubber sleeve 9.
The screw thread circular boop 8 of regulating bracing frame 4 outsides can cause the micro-deformation of bracing frame 4, thereby control cutter 7 finally can realize scraping off the purpose of pipe fitting surface suitable depth oxide layer in the penetraction depth on pipe fitting surface.Be illustrated in figure 5 as cutter 7 connection diagram is installed, this kind cloth position mode both can realize the adjustment in space between the blade by adjusting screw thread circular boop 8, also can remove its oxide layer with smooth installation pipe fitting; Bring the rotatory force of bracing frame 4 in the time of can providing certain resistance to offset threaded guide rod 2 rotations again, to guarantee only there is axial relative motion between cutter 7 and the pipe fitting.
At last, it is also to be noted that what more than enumerate only is specific embodiments of the invention.Obviously, the invention is not restricted to above embodiment, many distortion can also be arranged.All distortion that those of ordinary skill in the art can directly derive or associate from content disclosed by the invention all should be thought protection scope of the present invention.

Claims (9)

1. a polyethylene tube scraper comprises cutter; It is characterized in that, also comprise power set, movement transforming device, cutter and pipe fitting positioner; Power set comprise spanner, threaded guide rod, and movement transforming device comprises single thrust bearing, push pedal, and cutter and pipe fitting positioner comprise bracing frame, rubber sleeve;
Wherein: spanner is enclosed within the threaded guide rod end that cooperates with spanner by driving hole, threaded guide rod is connected with bracing frame by guide thread, push pedal and threaded guide rod are fixed together by single thrust bearing and axle head door, and rubber sleeve is fastened in the push pedal by bolt; Cutter is fastened on the bracing frame by bolt.
2. polyethylene tube scraper according to claim 1 is characterized in that, the claw-like structure that support frame as described above is made up of three 60 ° of circular arc barrels.
3. polyethylene tube scraper according to claim 1 is characterized in that, described cutter comprises three 125 ° of blades, the overlapping in twos installation of blade end.
4. polyethylene tube scraper according to claim 1 is characterized in that, also is provided with the screw thread circular boop on the support frame as described above, and the screw thread circular boop passes the C shape gusset annular that is welded on the bracing frame and is arranged on the bracing frame outer wall.
5. polyethylene tube scraper according to claim 1 is characterized in that, described threaded guide rod end also is provided with through hole, and the hole axle is axially vertical with threaded guide rod, is inserted with bearing pin in the through hole.
6. polyethylene tube scraper according to claim 1 is characterized in that, described single thrust bearing is installed in the upper and lower surface symmetry of push pedal, and the axle head door of threaded guide rod afterbody is fixed single thrust bearing by bolt.
7. polyethylene tube scraper according to claim 1 is characterized in that, the middle part near threaded guide rod between described spanner and bracing frame is provided with guide thread; This guide thread directly is welded on the bracing frame.
8. polyethylene tube scraper according to claim 1 is characterized in that, is provided with guide thread between support frame as described above and the single thrust bearing, and this guide thread is connected with bracing frame by gusset.
9. polyethylene tube scraper according to claim 8 is characterized in that, described gusset is the bar shaped gusset, is connected by bolt with bracing frame or directly is welded on the bracing frame.
CN2008100616906A 2008-05-23 2008-05-23 Polyethylene tube scraper Expired - Fee Related CN101288916B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2008100616906A CN101288916B (en) 2008-05-23 2008-05-23 Polyethylene tube scraper

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN2008100616906A CN101288916B (en) 2008-05-23 2008-05-23 Polyethylene tube scraper

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CN101288916A CN101288916A (en) 2008-10-22
CN101288916B true CN101288916B (en) 2010-04-14

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Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101544000B (en) * 2009-05-07 2011-01-26 浙江大学 Automatic cutting machine for outer curled edges of polyethylene pipes
CN102229012A (en) * 2011-06-24 2011-11-02 南京德邦金属装备工程有限公司 Non-ferrous metal heat exchange tube scraper
CN102773563B (en) * 2012-08-06 2014-08-20 山东豪迈机械制造有限公司 Special cutting device for flange seal line
CN106583494A (en) * 2016-11-11 2017-04-26 成都陵川特种工业有限责任公司 Scraper plate device used on vehicle silencing tube

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN201217107Y (en) * 2008-05-23 2009-04-08 浙江大学 Polyethylene pipe member scraping apparatus

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN201217107Y (en) * 2008-05-23 2009-04-08 浙江大学 Polyethylene pipe member scraping apparatus

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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
GR01 Patent grant
EE01 Entry into force of recordation of patent licensing contract

Application publication date: 20081022

Assignee: NINGBO AOPU PIPE TECHNOLOGY CO., LTD.

Assignor: Zhejiang University

Contract record no.: 2013330000400

Denomination of invention: Polyethylene tube scraper

Granted publication date: 20100414

License type: Exclusive License

Record date: 20131220

LICC Enforcement, change and cancellation of record of contracts on the licence for exploitation of a patent or utility model
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20100414

Termination date: 20210523

CF01 Termination of patent right due to non-payment of annual fee