US3348339A - Abrasive blasting wheels and vanes - Google Patents

Abrasive blasting wheels and vanes Download PDF

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Publication number
US3348339A
US3348339A US458150A US45815065A US3348339A US 3348339 A US3348339 A US 3348339A US 458150 A US458150 A US 458150A US 45815065 A US45815065 A US 45815065A US 3348339 A US3348339 A US 3348339A
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United States
Prior art keywords
wheel
abrasive
vanes
vane
face
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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 - Lifetime
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US458150A
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English (en)
Inventor
Jr Joseph E Bowling
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
Pangborn Corp
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Pangborn Corp
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Publication date
Application filed by Pangborn Corp filed Critical Pangborn Corp
Priority to US458150A priority Critical patent/US3348339A/en
Priority to DE19661577556 priority patent/DE1577556A1/de
Priority to NL6605160A priority patent/NL6605160A/xx
Application granted granted Critical
Publication of US3348339A publication Critical patent/US3348339A/en
Assigned to KENNECOTT CORPORATION reassignment KENNECOTT CORPORATION MERGER (SEE DOCUMENT FOR DETAILS). EFFECTIVE DEC. 31, 1980 NORTH DAKOTA Assignors: BEAR CREEK MINING COMPANY, BEAR TOOTH MINING COMPANY, CARBORUNDUM COMPANY THE, CHASE BRASS & COPPER CO. INCORPORATED, KENNECOTT EXPLORATION, INC., KENNECOTT REFINING CORPORATION, KENNECOTT SALES CORPORATION, OZARK LEAD COMPANY, PLAMBEAU MINING CORPORATION, RIDGE MINING CORPORATION (ALL MERGED INTO)
Anticipated expiration legal-status Critical
Expired - Lifetime 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

Definitions

  • a rotatable abrasive blasting wheel assembly includes a plurality of abrasive propelling vanes radially mounted on a rotatable wheel. The vanes alternately tilt forward and backward with respect to the wheel surface and include flared discharge ends so that the resulting blast pattern has a uniform distribution of abrasive particles over a substantially wider area than the width of each vane.
  • This invention relates to an abrading apparatus and more particularly to an apparatus for widening the abrasive blast stream of abrasive blasting wheels.
  • wide blasting patterns are most desirable when treating strip or sheet metal such as sheet steel.
  • the use of wide blast patterns reduces the number of blast wheels required for such an operation.
  • Patent No. 2,983,082 Another method which has been somewhat effective is that described in Patent No. 2,983,082. This method depends totally upon causing the abrasive particles to rebound out of the path of the incoming particles While actually concentrating the particles each wave thus 3,348,339 Patented Oct. 24, 1967 however tending to produce interference between particles in the same wave. This factor is increasingly important when blasting with very small particles.
  • Another object of the invention is to provide a new and novel rotatable blasting wheel assembly wherein the abrasive throwing vanes are flared at their discharge end with the vanes alternately tilted with respect to the surface of the blasting wheel.
  • FIG. 1 is a side view of the rotatable blast wheel assembly of the present invention
  • FIG. 1a is a View similar to FIG. 1 in a different phase of operation
  • FIG. 1b schematically shows the total effect of the blast streams shown in FIGS. 1 and 1a;
  • FIG. 2 is a plan view of a portion of the rotatable blast wheel assembly shown in FIG. 1;
  • FIG. 3 is a side elevation of a backwardly tilted vane or blade used in the assembly of FIGS. 1-2;
  • FIG. 4 is a top view of the blade shown in FIG. 3;
  • FIG. 5 is an end view of the blade shown in FIGS. 3-4;
  • FIG. 6 is a bottom view of the blade shown in FIGS. 3-5;
  • FIG. 7 is a side elevation of a forwardly tilted vane or blade used in the assembly of FIGS. 1-2;
  • FIG. 8 is a top view of the blade shown in FIG. 7;
  • FIG. 9 is an end view of the blade shown in FIGS. 7-8.
  • This invention overcomes the limitations of prior devices as described above by spreading the blast pattern in width rather than in length without at the same time changing the width of the feeding elements. This is accomplished by having the vanes canted or tilted alternately forward and backward, and at the same time by flaring the outer or discharge ends of the vanes in the direction of particle flow. This method causes the alternate particle -waves to strike the workpiece in a side-by-side attitude from the stream; the present device effectively uses lesser volume and lesser horsepower.
  • FIGS. 1 and 2 a rotatable blast wheel assembly is shown in FIGS. 1 and 2 which includes a blast wheel 1 having vane supporting channels 3 for supporting alternately tilted or canted vanes 5 and 7.
  • the vanes 5 and 7 are held in channels 3 by, for example, suitable locking pins 9 which fit into the channels 3 and the cutouts 11 in the dovetail base 13 of the vanes 5 and 7.
  • Channels 3 are for example 2 /4 inches wide at their widest point to receive vanes 5 and 7 which are slightly less than 2% inches wide at their widest point.
  • An indent 14 in the base 13 of the vane houses a pressure spring which rests on the floor of the vane channel 3.
  • the spring (not shown) urges the blades or vanes 5 and 7 upwardly to give a good tight fit of the base walls of the vane against the channel walls in the wheel 1.
  • Vanes 5 and 7 are fed abrasive particles which are introduced into spout 30 into impeller cage 32 and through slot 34 in the impeller cage.
  • the abrasive propelling face 15 of the backwardly inclined vane 7 is best shown in FIG. 3.
  • a strengthening rib 17 is formed at the end of the face 15 of the vane. This provides reinforced strength for the vane during its rotation and operation.
  • the vane has an outer extending edge or flange 19 at the upper edge thereof by which an open trough or channel is formed with the face 15 along which the abrasive flows. As clearly shown in FIG. 3 the discharge or outer end of each vane 7 is flared by inclining the upper edge 19 outwardly away from the surface of wheel 1.
  • FIG. 4 is a top view of vane 7 having its face 15 tilted away the direction of rotation of the wheel 1.
  • vane 7 has a negative slant with its discharge face 15 being inclined at an obtuse angle of, for example, about 6 with respect to the outer surface of wheel 1.
  • the inclination is best shown in FIG. 5 which indicates the degree of slant of discharge face 15 by reference to the center line 27 of vane 7 which is perpendicular to the outer surface of wheel 1.
  • FIG. 7 best shows abrasive propelling face 16 of the forwardly inclined vane or blade 5.
  • a strengthening rib 17 and an upper flange are also provided on vane 5.
  • the upper flange 2.0 of vane 5 is parallel to the surface of throwing wheel 1.
  • the lower edge 22, however, is inclined toward throwing wheel 1 thus causing the discharge end of vane 5 to be flared.
  • FIGS. 8 and 9 similarly show vane 5 which slants toward the direction of rotation of wheel 1 or in other words has a positive slant with its discharge face 16 being inclined at an acute angle, of for example, about 6 with respect to the outer surface of wheel 1.
  • the extent of slant is also indicated in FIG. 9 by reference to the center line 27.
  • FIG. 1 illustrates the resultant "blasting pattern with alternately canted vanes 5 and 7, each having oppositely flared discharge ends.
  • the workpiece 21 for example, a stainless steel coil
  • FIGS. 1, la and 1b The resultant widened blasting pattern is clearly apparent from FIGS. 1, la and 1b.
  • stream S of the forward canted vanes 5 moves along lowered flared edge 22, strikes work piece 20, and ricochets away from the line of travel of the incoming waves.
  • stream s from the backward canted vanes 7 moves along upper flared edge 19 and also richochets away from the line of an incoming wave after striking work piece 20.
  • the blasting pat: tern width is greatly increased, as shown in FIG. 112, over the blasting pattern of a conventional blasting assembly while at the same time, drastically reducing the stream density.
  • FIG. 1 The feed elements for the tilted vanes are most clearly shown in FIG. 1.
  • abrasive particles. are fed into spout 30 to the impeller which includes irripeller vanes 34 and impeller cage 36 having a slot 35.
  • the width of the abrasive flow path is, of course, the width of slot 35.
  • flared edge 22 of forwardly canted vane 5 is substantially in line with one end of slot 35
  • flared edge 19 of backwardly inclined vane 7 is substantially in line with the other end of slot 35.
  • the combined blasting elfect from vanes 5 and 7 is a widened symmetrical pattern.
  • a rotatable abrasive blasting wheel assembly comprising a rotatable wheel, said wheel having a surface perpendicular to the axis of rotation of said wheel, abrasive propelling vanes secured to said wheel, each of said vanes having a lower edge disposed against said wheel, said lower edge being parallel to said surface from its inner edge near the center of said wheel to the periphery of said wheel, each of said vanes having a planar abrasive propelling face with a feed end near the center of said wheel and a discharge end near the periphery of said wheel, said discharge end of each face being flared outwardly relative to said surface and with respect to said feed end, the abrasive propelling face of every other vane being forwardly inclined at an acute angle with respect to said surface, and the abrasive propelling face of the intervening vanes being backwardly inclined at an obtuse angle with respect to said surface.
  • An abrasive propelling vane for use in rotatable blasting wheel assemblies, said vane comprising a base support with a planar supporting surface, a feed end, a discharge end, a planar abrasive propel-ling face between said feed end and said discharge end, a first flange on said abrasive propelling face remote from said surface, a second flange on said abrasive propelling face adjacent said surface, said second flange being parallel to said surface, said first flange terminating at the discharge end in a flared portion which is inclined toward said surface, and said abrasive propelling face being tilted forward out of perpendicular alignment with said surface.
  • An abrasive propelling vane for use in rotatable blasting wheel assemblies said v-ane comprising a base support with a planar supporting surface, a feed end, a discharge end, a planar abrasive propelling face between said feed end and said discharge end, a first flange on said abrasive propelling face remote from said surface, a second flange on said abrasive propelling face adjacent said surface, said second flange being parallel to said surface, said first flange terminating at the discharge end in a flared portion which is inclined away from said surface, and said abrasive propelling face being tilted backward out of perpendicular alignment with'said surface.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Polishing Bodies And Polishing Tools (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)
US458150A 1965-05-24 1965-05-24 Abrasive blasting wheels and vanes Expired - Lifetime US3348339A (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
US458150A US3348339A (en) 1965-05-24 1965-05-24 Abrasive blasting wheels and vanes
DE19661577556 DE1577556A1 (de) 1965-05-24 1966-04-14 Schleifstrahlvorrichtung
NL6605160A NL6605160A (es) 1965-05-24 1966-04-18

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US458150A US3348339A (en) 1965-05-24 1965-05-24 Abrasive blasting wheels and vanes

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Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3436867A (en) * 1966-09-09 1969-04-08 Benfur Eng Co Blasting machine blade formation for producing a divergent stream of abrasive
US3629975A (en) * 1969-10-10 1971-12-28 Carborundum Co Particle-throwing apparatus
US3694963A (en) * 1970-03-25 1972-10-03 Wheelabrator Frye Inc Centrifugal blasting wheel
US3731432A (en) * 1972-01-05 1973-05-08 Carborundum Co Apparatus for removing wustite scale centrifugal blasting
EP0119399A2 (de) * 1983-03-19 1984-09-26 Messer Griesheim Gmbh Schleuderrad zum Abstrahlen von Strahlmitteln auf zu bearbeitende Werkstücke
US4941297A (en) * 1983-06-30 1990-07-17 Pangborn Corporation Flared vane for abrasive blasting wheel
US5239786A (en) * 1992-04-22 1993-08-31 Pangborn Corporation Inside pipe cleaner
US5476412A (en) * 1994-06-22 1995-12-19 Blast Cleaning Products Ltd. Blade and wheel plate for blast cleaning wheel and method of connecting a blade to the wheel plate
US10384327B2 (en) * 2014-09-25 2019-08-20 Wheelabrator Group Limited Blade for centrifugal blast wheel machine and method of maintaining a centrifugal blast wheel machine

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2929400A1 (de) * 1979-07-20 1981-02-12 Vogel & Schemmann Masch Schleuderrad fuer strahlmittelanlagen

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US469642A (en) * 1892-02-23 Sand blast machine
US2077637A (en) * 1934-05-26 1937-04-20 American Foundry Equip Co Abrasive throwing machine
US2314069A (en) * 1938-05-31 1943-03-16 Mills Alloys Inc Abrasive blast
US2983082A (en) * 1958-04-24 1961-05-09 Pangborn Corp Abrasive throwing vanes with ribbed wearing face
US3242615A (en) * 1963-08-05 1966-03-29 Pangborn Corp Apparatus for widening the abrasive blast stream of abrasive blasting wheels

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US469642A (en) * 1892-02-23 Sand blast machine
US2077637A (en) * 1934-05-26 1937-04-20 American Foundry Equip Co Abrasive throwing machine
US2314069A (en) * 1938-05-31 1943-03-16 Mills Alloys Inc Abrasive blast
US2983082A (en) * 1958-04-24 1961-05-09 Pangborn Corp Abrasive throwing vanes with ribbed wearing face
US3242615A (en) * 1963-08-05 1966-03-29 Pangborn Corp Apparatus for widening the abrasive blast stream of abrasive blasting wheels

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3436867A (en) * 1966-09-09 1969-04-08 Benfur Eng Co Blasting machine blade formation for producing a divergent stream of abrasive
US3629975A (en) * 1969-10-10 1971-12-28 Carborundum Co Particle-throwing apparatus
US3694963A (en) * 1970-03-25 1972-10-03 Wheelabrator Frye Inc Centrifugal blasting wheel
US3731432A (en) * 1972-01-05 1973-05-08 Carborundum Co Apparatus for removing wustite scale centrifugal blasting
EP0119399A2 (de) * 1983-03-19 1984-09-26 Messer Griesheim Gmbh Schleuderrad zum Abstrahlen von Strahlmitteln auf zu bearbeitende Werkstücke
EP0119399A3 (en) * 1983-03-19 1986-06-04 Messer Griesheim Gmbh Impeller wheel for projecting abrasive blasts on work pieces to be treated
US4941297A (en) * 1983-06-30 1990-07-17 Pangborn Corporation Flared vane for abrasive blasting wheel
US5239786A (en) * 1992-04-22 1993-08-31 Pangborn Corporation Inside pipe cleaner
US5476412A (en) * 1994-06-22 1995-12-19 Blast Cleaning Products Ltd. Blade and wheel plate for blast cleaning wheel and method of connecting a blade to the wheel plate
US10384327B2 (en) * 2014-09-25 2019-08-20 Wheelabrator Group Limited Blade for centrifugal blast wheel machine and method of maintaining a centrifugal blast wheel machine

Also Published As

Publication number Publication date
NL6605160A (es) 1966-11-25
DE1577556A1 (de) 1969-11-06

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AS Assignment

Owner name: KENNECOTT CORPORATION

Free format text: MERGER;ASSIGNORS:BEAR CREEK MINING COMPANY;BEAR TOOTH MINING COMPANY;CARBORUNDUM COMPANY THE;AND OTHERS;REEL/FRAME:003961/0672

Effective date: 19801230