EP0359194A1 - Vorrichtung zum Schaben für eine Spindel oder eine Welle - Google Patents

Vorrichtung zum Schaben für eine Spindel oder eine Welle Download PDF

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Publication number
EP0359194A1
EP0359194A1 EP89116847A EP89116847A EP0359194A1 EP 0359194 A1 EP0359194 A1 EP 0359194A1 EP 89116847 A EP89116847 A EP 89116847A EP 89116847 A EP89116847 A EP 89116847A EP 0359194 A1 EP0359194 A1 EP 0359194A1
Authority
EP
European Patent Office
Prior art keywords
scraping
scraping device
peripheral surface
parts
structural member
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.)
Granted
Application number
EP89116847A
Other languages
English (en)
French (fr)
Other versions
EP0359194B1 (de
Inventor
Ole John Hansen
Torben Andersen
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.)
W S Shamban Europa AS
Original Assignee
W S Shamban Europa AS
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 W S Shamban Europa AS filed Critical W S Shamban Europa AS
Priority to AT89116847T priority Critical patent/ATE82877T1/de
Publication of EP0359194A1 publication Critical patent/EP0359194A1/de
Application granted granted Critical
Publication of EP0359194B1 publication Critical patent/EP0359194B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B08—CLEANING
    • B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
    • B08B9/00—Cleaning hollow articles by methods or apparatus specially adapted thereto 
    • B08B9/02—Cleaning pipes or tubes or systems of pipes or tubes
    • B08B9/023—Cleaning the external surface
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B08—CLEANING
    • B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
    • B08B1/00—Cleaning by methods involving the use of tools
    • B08B1/10—Cleaning by methods involving the use of tools characterised by the type of cleaning tool
    • B08B1/16—Rigid blades, e.g. scrapers; Flexible blades, e.g. wipers
    • B08B1/165—Scrapers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B08—CLEANING
    • B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
    • B08B1/00—Cleaning by methods involving the use of tools
    • B08B1/30—Cleaning by methods involving the use of tools by movement of cleaning members over a surface

Definitions

  • the present invention relates to a scraping device for cooperating with a peripheral surface of a structural member, such as a shaft, a spindle, or a cylinder, and having at least one scraping edge part, which is substantially parallel with or defines an acute angle ( ⁇ ) with the axial direction of the peripheral surface and is adapted to engage with such peripheral surface so as to scrape foreign matter therefrom when the structural member is rotated and/or moved axially relative to the scraping device.
  • a structural member such as a shaft, a spindle, or a cylinder
  • One or both of the inner peripheral edges of the annular scraping device then serve as a scraping edge or edges extending in a plane substantially perpendicular to the axis of the annular scrap­ing device.
  • the outer peripheral surface of the structural mem­ber to be scraped comprises surface parts defining an acute angle with the axis of the structural member, such as the opposite side surfaces of a thread formed at the outer peripheral surface of a threaded shaft or spindle
  • the conventional scraping device has pro­ven inefficient and dissatisfactory, because foreign matter present on the outer peripheral surface of the shaft or spindle tends to become jammed between the annular scraping device and such surface parts of the shaft or spindle which are non-parallel with the axis thereof.
  • US Patent No. 4,079,477 discloses a scraping device for removing soot and other foreign matter from annular channels formed in pistons.
  • This known scraping device is formed as a ring in which rollers for engaging with the outer peripheral surface of the piston are mounted.
  • the scraping device also comprises swingably mounted, spring biased scraping members extending into the annular channels. These scraping members have scraping edges extending substantially parallelly with the axis of the ring-shaped scraping device.
  • the present invention provides a scraping device of the type descri­bed above which may efficiently scrape threaded inner and outer peri­pheral surfaces of a structural member.
  • the scraping device according to the invention is characterized in that the scraping edge part or each of the scraping edge parts is formed along one side of a projection extending axially from at least one end of the scraping device.
  • the peripheral surface to be scraped and cleaned may be an inner pe­ripheral surface, such as the peripheral wall of a plain or threaded bore, or an outer peripheral surface, such as the peripheral surface of a rod, a shaft or a spindle with a plain or threaded outer peri­pheral surface.
  • the scraping device may comprise one or more scraping edge parts, and each of these edge parts may be assigned to and adap­ted to scrape specific parts of the peripheral surface to be scraped, for example the bottom and the top, respectively, of one or more threads. However, preferably the scraping edge parts will scrape in combination substantially the full profile of the thread.
  • the scraping edge part or parts extend(s) axially from at least one end of the scraping device, the peripheral surface of the structural member will pass the scraping edge part or parts and be scraped thereby before it comes into contact with the body member of the scraping device. This means that jamming of foreign matter between the peripheral surface of the structural member and the adjacent surface of the scraping device can be avoided even when such surfaces are complementary and in tight engagement with each other. Because the axial projections on which the scraping edges are formed may be integral with the scraping device itself, the scraping device according to the invention may be relatively simple to manufacture.
  • the scraping device may have any suitable shape.
  • the scraping device when the scraping device is adapted to cooperate with an inner peri­pheral surface, such as a threaded bore, the scraping device may be formed like a solid or hollow stopper or shaft.
  • the scraping device has an annular shape and is adapted to encircle the structural member, such as a shaft or a spindle, so as to engage with the outer peripheral surface thereof.
  • At least one end surface of the scraping device may define at least one substantially helical surface part, and the scraping edge part may then be formed by a step inter­connecting adjacent ends of the helical surface part or parts.
  • the helical surface parts and the scraping edge parts may define serration-like formations.
  • the scraping edge part or parts may extend in the axial direction of the peripheral surface to be scraped, and when the structural member is rotating in relation to the scraping device, the scraping edge parts will extend substantially perpendicular to the rotational di­rection. If, however, the scraping edge part defines an obtuse angle with the adjacent helical surface part, foreign matter scraped will tend to slide towards the free end of the scraping edge part, which means in an axial direction away from the scraping device.
  • the scraping device according to the invention may have a peripheral inner or outer surface cooperating with the peripheral outer or inner surface to be scraped.
  • the interengaging surfaces of the scraping device and of the structural member may be substantially complemen­tary, and the engagement may be more or less tight.
  • the structural member is rotated and/or moved axially relative to the scraping device.
  • the scraping de­vice is fixed, for example in a wall part of a housing, while the structural member is being moved.
  • the structural member is fixedly mounted, while the scraping device is being moved, for example together with a housing or chamber in which the scraping device is mounted.
  • the scraping device may be made from an elastomerical plastic or a harder plastics material or from metal, and the scraping edge part or parts of the scraping device may be rather blunt. Preferably, however, the scraping edge parts are more or less sharpened.
  • Fig. 1 shows a shaft or a spindle 10, which has a threaded part 11 extending through an opening defined in a housing wall 12.
  • An annular scraping device 13 is mounted in the opening of the housing wall 12 by means of a locking ring 14 engaging with an annular channel 15 defined in the outer peripheral surface of the scraping device 13 and with an inner annular channel 16 defined in the housing wall 12.
  • Fig. 2 shows the same as Fig. 1, but the scraping device 13 is adapted for rotation of the shaft or spindle 10 in opposite direction.
  • the inner peripheral surface of the scraping device 13 may be provided with internal threads 17 mating with the threads on the threaded part 11 of the spindle 10 extending there­ through.
  • At least one end surface of the scraping device is provided with one or more scraping edge parts 18 and 19 extending between the adjacent ends of helical end surface parts 20.
  • Each of the scraping edge parts may extend in a substantially axial direction of the an­nular scraping device 13 or of the spindle 10 surrounded thereby.
  • each of the scraping edge parts defines an acute angle ⁇ (Figs.
  • the scra­ping edge parts 18 and 19 are the inner edges of connecting surface parts 21 connecting the helical end surface parts 20. While these connecting surface parts 21 may extend substantially along axial planes, they are preferably chamfered or bevelled so as to define relatively sharp scraping edge parts. In the embodiments shown in Figs. 1-3 the scraping edge parts 18 and 19 have a profile so as to tightly engage with the tops 22 and the bottoms 23 of the thread formed on the threaded part 11 of the spindle 10.
  • the scraping edge parts 18 and 19 will efficiently scrape foreign matter, such as ice, oil, sand, dirt, etc., from the outer peripheral surface of the threaded part 11 of the spindle whereby such foreign matter is prevented from being transferred from one side of the housing wall 12 to another.
  • the shaft 10 has a plain outer cylindrical surface
  • the annular scraping device 13 has a cor­responding plain inner cylindrical surface.
  • This embodiment compri­ses only one scraping edge part 24 connecting adjacent ends of a single substantially helical end surface part 20.
  • the scraping device 13 shown in Fig. 4 could be mounted in a housing wall in a manner similar to that shown in Fig. 1, and the shaft 10 could be rotated and possibly also moved axially in relation to the scraping device 13. Alternatively, the shaft 10 could be stationarily mounted whereas the scraping device 13 could be moved in relation to the shaft 10.
  • the shaft or spindle 10 is normally made from steel or another metal but could also be made from plastic, such as fiber reinforced plast­ic.
  • the scraping device 13 is normally made from plastic but could alternatively be made from metal, such as aluminum, copper, brass or bronze. Alternatively, the scraping device may mainly be made from plastic while only the scraping edge parts are made from metal, or vice versa.
  • the scraping device according to the invention could be used in connection with spindles, shafts and rods used in force transmitting mechanisms in aircraft, ships and other vehicles, where such shafts or spindles are exposed to temperature and humidity con­ditions which are likely to cause deposition of ice.
  • the scraping device according to the invention could be used for removing any other type of foreign matter from the inner or outer peripheral surface of a structural member of the above mentioned type.
  • both end surfaces of the annular scraping device could be provided with scraping edge parts.
  • These scraping edge parts could, for example, be defined on serration-like projections or other projections formed on the end surface or end surfaces of the annular scraping device.

Landscapes

  • Mechanical Engineering (AREA)
  • Engineering & Computer Science (AREA)
  • Gripping On Spindles (AREA)
  • Centrifugal Separators (AREA)
  • Turning (AREA)
  • Extrusion Moulding Of Plastics Or The Like (AREA)
  • Encapsulation Of And Coatings For Semiconductor Or Solid State Devices (AREA)
  • Sliding-Contact Bearings (AREA)
  • Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)
  • Transmission Devices (AREA)
  • Investigation Of Foundation Soil And Reinforcement Of Foundation Soil By Compacting Or Drainage (AREA)
  • Shafts, Cranks, Connecting Bars, And Related Bearings (AREA)
  • Cleaning In General (AREA)
EP89116847A 1988-09-14 1989-09-12 Vorrichtung zum Schaben für eine Spindel oder eine Welle Expired - Lifetime EP0359194B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT89116847T ATE82877T1 (de) 1988-09-14 1989-09-12 Vorrichtung zum schaben fuer eine spindel oder eine welle.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DK511288A DK511288A (da) 1988-09-14 1988-09-14 Skrabeindretning til for eksempel en aksel eller spindel
DK5112/88 1988-09-14

Publications (2)

Publication Number Publication Date
EP0359194A1 true EP0359194A1 (de) 1990-03-21
EP0359194B1 EP0359194B1 (de) 1992-12-02

Family

ID=8139554

Family Applications (1)

Application Number Title Priority Date Filing Date
EP89116847A Expired - Lifetime EP0359194B1 (de) 1988-09-14 1989-09-12 Vorrichtung zum Schaben für eine Spindel oder eine Welle

Country Status (6)

Country Link
EP (1) EP0359194B1 (de)
AT (1) ATE82877T1 (de)
DE (2) DE68903712T2 (de)
DK (1) DK511288A (de)
FI (1) FI894331A (de)
NO (1) NO893665L (de)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL1013864C2 (nl) * 1999-12-16 2001-06-21 Berson Milieutech Inrichting voor het steriliseren van een vloeistof.
CN102310056A (zh) * 2010-07-07 2012-01-11 株式会社日立建筑系统 花键衬套的清扫装置及其组装工件夹具
GB2527119A (en) * 2014-06-13 2015-12-16 David Fullarton Apparatus and method for cleaning a helical member
WO2017098192A1 (en) * 2015-12-08 2017-06-15 FULLARTON, David Apparatus and method for cleaning a helical member

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106640472B (zh) * 2016-11-28 2018-09-18 浙江国正安全技术有限公司 一种防堵塞十字块柱塞结构
RU204373U1 (ru) * 2021-03-09 2021-05-21 Публичное акционерное общество «Татнефть» имени В.Д. Шашина Устройство для чистки крепежных изделий

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4079477A (en) * 1976-08-04 1978-03-21 Helt Raymond E Apparatus for cleaning piston ring grooves
DE2716608C2 (de) * 1976-04-21 1982-10-07 Vsesojuznyj naučno-issledovatel'skij institut po sboru, podgotovke i transportu nefti i nefteproduktov "VNIISPTNEFT", Ufa Bearbeitungswerkzeug für Maschinen zur Reinigung derAußenfläche von Rohren
EP0081636A1 (de) * 1981-12-02 1983-06-22 Firma Carl Freudenberg Radialwellendichtring mit einer federnd gegen die abgedichtete Welle gepressten Dichtlippe aus einem gummielastischen Werkstoff
GB2149459A (en) * 1983-11-07 1985-06-12 Howden James & Co Ltd A scoop for picking up lubricant
SE441418B (sv) * 1984-02-27 1985-10-07 Bror Elofson Skrapa for att avlegsna beleggningar eller partiklar pa periferin av ett roterande hjul eller pa ett endlost lopande band
US4621386A (en) * 1983-11-30 1986-11-11 Aeplc Scraper rings
EP0243197A1 (de) * 1986-04-25 1987-10-28 Friedrichsfeld AG Keramik- und Kunststoffwerke Werkzeuge zur Bearbeitung von Röhren
GB2194614A (en) * 1986-08-22 1988-03-09 Fusion Equipment Ltd Pipe scraper

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4407511A (en) * 1981-07-24 1983-10-04 General Motors Corporation Seal and scraper assembly

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2716608C2 (de) * 1976-04-21 1982-10-07 Vsesojuznyj naučno-issledovatel'skij institut po sboru, podgotovke i transportu nefti i nefteproduktov "VNIISPTNEFT", Ufa Bearbeitungswerkzeug für Maschinen zur Reinigung derAußenfläche von Rohren
US4079477A (en) * 1976-08-04 1978-03-21 Helt Raymond E Apparatus for cleaning piston ring grooves
EP0081636A1 (de) * 1981-12-02 1983-06-22 Firma Carl Freudenberg Radialwellendichtring mit einer federnd gegen die abgedichtete Welle gepressten Dichtlippe aus einem gummielastischen Werkstoff
GB2149459A (en) * 1983-11-07 1985-06-12 Howden James & Co Ltd A scoop for picking up lubricant
US4621386A (en) * 1983-11-30 1986-11-11 Aeplc Scraper rings
SE441418B (sv) * 1984-02-27 1985-10-07 Bror Elofson Skrapa for att avlegsna beleggningar eller partiklar pa periferin av ett roterande hjul eller pa ett endlost lopande band
EP0243197A1 (de) * 1986-04-25 1987-10-28 Friedrichsfeld AG Keramik- und Kunststoffwerke Werkzeuge zur Bearbeitung von Röhren
GB2194614A (en) * 1986-08-22 1988-03-09 Fusion Equipment Ltd Pipe scraper

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL1013864C2 (nl) * 1999-12-16 2001-06-21 Berson Milieutech Inrichting voor het steriliseren van een vloeistof.
CN102310056A (zh) * 2010-07-07 2012-01-11 株式会社日立建筑系统 花键衬套的清扫装置及其组装工件夹具
CN102310056B (zh) * 2010-07-07 2014-03-12 株式会社日立建筑系统 花键衬套的清扫装置及其组装工件夹具
GB2527119A (en) * 2014-06-13 2015-12-16 David Fullarton Apparatus and method for cleaning a helical member
WO2017098192A1 (en) * 2015-12-08 2017-06-15 FULLARTON, David Apparatus and method for cleaning a helical member

Also Published As

Publication number Publication date
DE359194T1 (de) 1990-08-16
NO893665L (no) 1990-03-15
EP0359194B1 (de) 1992-12-02
NO893665D0 (no) 1989-09-13
DK511288A (da) 1990-03-15
FI894331A (fi) 1990-03-15
ATE82877T1 (de) 1992-12-15
FI894331A0 (fi) 1989-09-13
DE68903712T2 (de) 1993-04-01
DE68903712D1 (de) 1993-01-14
DK511288D0 (da) 1988-09-14

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