EP0130765A2 - Aufgeweitete Schaufel für ein Schleuderrad zum Sandstrahlen - Google Patents

Aufgeweitete Schaufel für ein Schleuderrad zum Sandstrahlen Download PDF

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Publication number
EP0130765A2
EP0130765A2 EP84304275A EP84304275A EP0130765A2 EP 0130765 A2 EP0130765 A2 EP 0130765A2 EP 84304275 A EP84304275 A EP 84304275A EP 84304275 A EP84304275 A EP 84304275A EP 0130765 A2 EP0130765 A2 EP 0130765A2
Authority
EP
European Patent Office
Prior art keywords
vane
abrasive
face
throwing
vanes
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.)
Withdrawn
Application number
EP84304275A
Other languages
English (en)
French (fr)
Other versions
EP0130765A3 (de
Inventor
James H. Carpenter
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.)
Kennecott Corp
Original Assignee
Kennecott Corp
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 Kennecott Corp filed Critical Kennecott Corp
Publication of EP0130765A2 publication Critical patent/EP0130765A2/de
Publication of EP0130765A3 publication Critical patent/EP0130765A3/de
Withdrawn legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24C—ABRASIVE OR RELATED BLASTING WITH PARTICULATE MATERIAL
    • B24C5/00—Devices or accessories for generating abrasive blasts
    • B24C5/06—Impeller wheels; Rotor blades therefor
    • B24C5/062—Rotor blades or vanes; Locking means therefor
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24C—ABRASIVE OR RELATED BLASTING WITH PARTICULATE MATERIAL
    • B24C5/00—Devices or accessories for generating abrasive blasts
    • B24C5/06—Impeller wheels; Rotor blades therefor
    • B24C5/068—Transferring the abrasive particles from the feeding means onto the propeller blades, e.g. using central impellers

Definitions

  • This invention relates to a flared vane for an abrasive blasting wheel; more generally, it relates to new and useful improvements in abrasive blasting machines and, more particularly, it relates to the abrasive throwing blades or vanes used in such machines.
  • Abrasive blasting machines of the type having a wheel or rotor assembly provided with a plurality of abrasive throwing blades or vanes arranged radially about the face of the rotor are well known.
  • a stream of abrasive particulate material is fed into the path of the rotating wheel from an impeller secured to the centre of the rotor.
  • the vanes are adapted to receive and throw the abrasive from the periphery of the rotor at an appropriate discharge point in the machine casing at a blasting velocity to strip or clean metal castings, for example.
  • the throwing vanes due to the nature of the use thereof, are subject fo excessive wear and are therefore removably mounted on a runnerhead portion of the wheel assembly for replacement as needed.
  • the throwing vanes have been provided with varying configurations for improving the abrasive feed by increasing the length or widening the vane for changing the blast pattern as disclosed, for example, in U.S. Patents Nos. 3,242,615; 3,348,339 and 3,694,963.
  • the vanes In other blasting machines, the vanes have been tapered or curved for providing minimum power consumption or for noise reduction purposes, such as disclosed in U.S. Patent Nos. 1,196,885 and 3,872,624.
  • U.S. Patent No. 2,330,949 there is disclosed a rotatable abrasive spray head wherein the vanes comprise open face channel members having a flared configuration of 10 or more degrees for spraying the abrasive therefrom.
  • Another object of the present invention is to provide a throwing vane of novel configuration for effectively reducing wear thereof during use and prolonging the operating life of the vane.
  • a further object of the present invention is to provide a vane for a blasting wheel capable of effecting even distribution of abrasive material across the face of the vane during operation of the wheel.
  • the present invention contemplates a vane for use in a blasting wheel of an abrasive blasting machine.
  • the vane is provided with spaced longitudinally extending sidewalls which flare away from the heel of the vane at an angle preferably in the range of from 2 to 7 degrees.
  • Abrasive material fed to the heel during operation of the blasting wheel spreads transversely of the vane at a controlled rate of flow resulting in even distribution of abrasive along the entire face of the vane.
  • the present invention provides an abrasive wheel assembly comprising a rotor (12), a runnerhead (13) concentrically mounted on the said rotor for rotation at a predetermined operating RPM, a plurality of spaced radially arranged abrasive particle throwing vanes (14), means detachably securing the said vanes to the face of the said runnerhead, impeller means (18) carried by the said rotor for feeding particulate abrasive material to the said vanes, characterised in that the said vanes are provided with an abrasive throwing face (15) having spaced side portions (29, 30) flared away from the abrasive receiving heel end portion (16) of the said vane to the discharge end thereof (17) at a flare angle in the range of from 2° to 7°.
  • the present invention also provides an abrasive particle throwing vane for use in a rotatable blasting wheel assembly, the said vane comprising a heel end portion spaced from a discharge end portion, a particle throwing face surface intermediate the said end portions characterised in that the spaced sides of the said face flare away from the said heel end portion to the said discharge end of the said throwing face at a flare angle in the range of from 2° to 7°.
  • a throwing wheel assembly of an abrasive blasting machine is generally indicated by the reference numeral 10 in FIGS. 1 and 2.
  • Assembly 10 includes a central hub or rotor 12 to which is affixed a runnerhead 13 having a common axis therewith.
  • a plurality of curved vanes 14 are perpendicularly mounted on the face 15 of runnerhead 13 and extend generally radially from the axis of rotation of rotor 12.
  • An innermost heel portion 16 of each vane 14 is spaced a distance from the axis of rotation for receiving particulate abrasive material from an impeller means 18.
  • Impeller means 18 is disposed on the hub 12 between the heel ends 16 of vanes 14 for feeding the abrasive particles which are received from a fixed spout 20 to vanes 14 in a conventional manner.
  • Impeller means 18 comprises an open ended outer case 21 having flanges 22 connected to the machine casing and open to the spout 20.
  • An impeller 23 is disposed within case 21 and is rotatably affixed to hub 12.
  • Impeller 23 is provided with openings 24 for discharging abrasive received from spout 20 outwardly of case 21 through a discharge opening 25 therein upon rotation of wheel 10. In this manner, abrasives are fed to the heels 16 of vanes 14 as vanes 14 rotate past the opening 25. The abrasive is then moved along the face 15 of the vane from the heel 16 to the discharge end 17 for discharge therefrom at a selected blasting velocity.
  • the face of runnerhead 13 has formed therein a plurality of slots 26 which may be of suitable dovetail or other undercut configuration at an angle to a radial line.
  • Each slot 26 is adapted to receive a base 27 of a curved vane 14 with the base 27 being inserted into the slot 26 and removable therefrom from the periphery of the runnerhead. Once the base is inserted in a slot 26 it is retained therein by a suitable locking pin (not shown).
  • a vane 14 of novel configuration for increasing the wear characteristics thereof during use by providing even distribution of the abrasive feed.
  • sidewalls 29 and 30 are provided for each vane 14.
  • Sidewalls 29 and 30 are flared away from the centre line of face 15 of a vane 14 at an angle in the range of from 2 to 7 degrees, as designated "A" and "B", respectively, in accompanying FIG. 2, from heel portion 16 to the discharge end portion 17 of the vane.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)
EP84304275A 1983-06-30 1984-06-25 Aufgeweitete Schaufel für ein Schleuderrad zum Sandstrahlen Withdrawn EP0130765A3 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US50965683A 1983-06-30 1983-06-30
US509656 1983-06-30

Publications (2)

Publication Number Publication Date
EP0130765A2 true EP0130765A2 (de) 1985-01-09
EP0130765A3 EP0130765A3 (de) 1986-04-30

Family

ID=24027575

Family Applications (1)

Application Number Title Priority Date Filing Date
EP84304275A Withdrawn EP0130765A3 (de) 1983-06-30 1984-06-25 Aufgeweitete Schaufel für ein Schleuderrad zum Sandstrahlen

Country Status (4)

Country Link
EP (1) EP0130765A3 (de)
AU (1) AU2912584A (de)
CA (1) CA1242586A (de)
ZA (1) ZA844355B (de)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6811638B2 (en) 2000-12-29 2004-11-02 Kimberly-Clark Worldwide, Inc. Method for controlling retraction of composite materials
US7122334B2 (en) 1997-12-24 2006-10-17 Genencor International, Inc. Method of assaying wash performance of enzymes on a microtiter plate
WO2011107204A1 (de) * 2010-03-04 2011-09-09 Rösler Holding GmbH & Co. KG Schleuderrad
CN112264937A (zh) * 2020-10-19 2021-01-26 上海尚实能源科技有限公司 一种涡轮叶片的定位治具及榫头的加工方法

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP7016507B2 (ja) * 2017-04-21 2022-02-07 株式会社不二製作所 ブラスト加工装置の研磨材加速用インペラ，及びブラスト加工装置，並びに前記インペラの製造方法

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE861175A (fr) * 1977-11-24 1978-03-16 Cockerill Ougree Providence & Turbine de grenaillage a haute performance

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7122334B2 (en) 1997-12-24 2006-10-17 Genencor International, Inc. Method of assaying wash performance of enzymes on a microtiter plate
US6811638B2 (en) 2000-12-29 2004-11-02 Kimberly-Clark Worldwide, Inc. Method for controlling retraction of composite materials
WO2011107204A1 (de) * 2010-03-04 2011-09-09 Rösler Holding GmbH & Co. KG Schleuderrad
CN112264937A (zh) * 2020-10-19 2021-01-26 上海尚实能源科技有限公司 一种涡轮叶片的定位治具及榫头的加工方法
CN112264937B (zh) * 2020-10-19 2021-05-07 上海尚实能源科技有限公司 一种涡轮叶片的定位治具及榫头的加工方法

Also Published As

Publication number Publication date
AU2912584A (en) 1985-01-03
EP0130765A3 (de) 1986-04-30
CA1242586A (en) 1988-10-04
ZA844355B (en) 1985-01-30

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Inventor name: CARPENTER, JAMES H.