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
  • B24C5/066—Housings; Accessories therefor, e.g. liners

Definitions

• the invention relates to a blast wheel housing with an outer housing, which consists of at least one cover element, two side elements and two of these comprised, spaced apart arranged end wall elements, and with at least one usable in the outer housing lining insert, the at least one lining cover element, two lining side elements and two of this comprises, spaced apart lining end wall elements comprises.
• the slinger wheels consist essentially of at least one side plate with attached throwing blades, which extend substantially radially.
• the blast wheel is arranged in a blast wheel housing and rotatably mounted there.
• the blast wheel has only in a partial area on the outer circumference of the blast wheel an opening from which the blasting agent can escape.
• the remaining areas of the outer housing are closed and provided with lining elements, via which a protection of the actual outer housing against the abrasive abrasive particles is given.
• the lining elements are designed as wearing parts and therefore must be easy to insert into the outer housing or to remove it again.
• the blasting agent In order to be able to direct the blasting agent through the opening, it is applied via a Leithulse which is fixedly arranged in the center of the rotating blast wheel.
• the Leithulse with the subsequent Strahlkarzu galung is attached to a Leithulsendeckel, which in turn is attached to a recess on a side wall element of the contemplatgehauses. Due to the flange-like connection of outer housing and Leithulsendeckel different angular positions are set.
• the jet turbine is fastened to a blast cabin via a screw connection with a foundation or the base element. The screws pass through holes in the foot elements of the outer housing.
• the object of the invention is therefore to enable removal of the screw connections even when the screw connection is blocked by contamination, without damaging the blower wheel housing with its attachments.
• the overall height can be reduced, since within the T-slot only the mostly hexagonal or otherwise provided with key surfaces part of the screw head needs to be added. Unless the Height is not an important criterion, the mother may be concealed and show the screw head to the outside in reverse order.
• the T-groove is about as wide as the key width, so that the screw head or the mother used there is guided against rotation.
• an embodiment is advantageous in which in the groove bottom of the T-groove a recess is made, which ends in front of the open end of the T-groove.
• the clamping claws are designed as clamping element and have at least at one end an angularly projecting edge.
• the clamping element is rotatably mounted on the Spannspatzenlagerelement or on the base member.
• the pivot point is determined by a screw, which is preferably inserted with its head in the T-groove on Spannspatzenlagerelement or on the base member. If the screw and thus the fulcrum between clamping claw and Spannspatzenlagerelement at the intended screwing in the T-groove, it would - if the bias of the screw subside - blocking a protruding edge on the Spannpratzenvoretti rotation torsionally positive on the body of Spannpratzenlagerele- element.
• the head of the screw is fixed due to the depression in the groove bottom in the region of the intended Verschraubungsticians.
• the screw together with the clamping element could only slip out of the T-slot if the screwed connection has rotated so far that the screw head can come out of the recess in the groove, ie there is a great axial play on the screw connection. If a self-locking nut is used, the risk of such loosening of the screw connection and thus the risk that the clamping element can slip out is largely minimized.
• the clamping element can be rotated freely.
• the angled protruding edge of the clamping element can pass the Spannspatzenlagerelement over to allow easy disassembly of the component.
• a further embodiment provides that a lining insert can be used as wear protection in the outer housing, which consists of at least two trapezoidal lining side elements and two lining end wall elements, wherein a lining cover element via two clamping claws which are attached to a Spannpratzenla- gerelement on the outer housing, lockable on the liner insert is. Also in the lining cover fastening within the outer housing, the connection formation according to the invention is advantageous.
• the attachment of the Spannpratzenlagerelements for the lining cover can be simplified in that it has a projection, shoulder or extension, which is inserted into a compatible recess in the outer outer housing.
• This connection can be realized as a press fit or secured by means of a welding point.
• the Leithülsendeckel must be attached to the side wall member, it is appropriate that at least three Spannspatzenlageretti are mounted on the side wall member of the outer housing to the LeithggsenapplicationausEnglishung in each of which a T-slot is introduced. Its open end is preferably disposed away from the LeithülsenapplicationausEnglishung so that the T-slots radially outward with respect to the center of the Leithggsendeckel.
• the foot elements are preferably two spaced parallel and mirror-symmetrical aligned foot angle. These are easy to produce, for example by folding the side wall elements, and can be clamped well on the clamps.
• a further object of the invention is therefore also to make the lateral wear protection formed by the lining side wall elements easier to replace.
• this object is achieved by a blast wheel with the features of claim 13 or with the features of claim 14.
• Fig. 3 is a Spannpratzenvorplatz foot angle in section;
• Fig. 4, 5 a Spannpratzenvorraum on the lining cover element in plan view and in section;
• FIG. 6 shows a further embodiment of a clamping claw device on the lining cover element in plan view
• FIG. 8 is a detail view of the blower wheel housing of FIG. 1,
• FIG. 9a shows a detail view of a first connection of lining elements on the blower wheel housing from FIG. 1;
• Fig. 9b is a detail view of a second connection of lining elements.
• FIG. 1 shows a blast wheel housing 100 with a turbine 200 installed therein.
• the turbine 200 is essentially composed of a motor 201, a blast wheel 202 with throwing blades 203 and an impeller 204.
• the blast wheel housing 100 is formed by an outer housing 10 and a liner insert 20.
• the outer housing 10 encloses the impeller 202, 203, 204 except for the bottom area open at the bottom. It is formed inter alia of trapezoidal side wall elements 14, which are arranged at a distance from each other, in particular are aligned parallel to each other. Sideways here side wall elements 11, 12 are attached. Above a lid member 15 is placed.
• the side member 11 in Fig. 1 extends from a rear, flat portion 11.4 on a first, at right angles employed leg 11.3, which is again bent so that there is another short leg 11.2, the outer edge 11.1 either with the lateral outer edge the end wall element 14 is connected or welded directly onto the surface of the end wall element 14.
• an adjusting screw 12.2 is arranged, with which the lining side member 22 is pressed onto the lining end elements 23, 24.
• a screw connection 12.1 connects the flange-like bent upper edge of the side edge element 12 with a cover element 15.
• the outer housing 10 is cut open and allows the view of the lining insert 20, which is formed here of flat steel plates.
• the foot angle 16 is bent from the side wall member 14 and rests on a base member 17.
• the upper part 17.1 has a width which allows the lateral insertion of a shaft of a screw 76.
• the width of a lower part 17.2 corresponds approximately to the wrench size of the screw head, so that it is guided against rotation in the groove.
• a clamping element element 71 of the clamping claw device 70 bridges with its width the groove 17.1 and lies with a rear, protruding edge 71.1 on both sides of the groove 17.1 on the base member 17.
• the screw 76 passes through the clamping element 71 and is provided at the top with a cap nut 77. By tightening the screwed connection, the clamping element presses on the foot angle 16 and clamps it firmly to the base element 17.
• FIGS. 2a to 2c show an anti-twist device on the example of the clamping claw device 50 for the guide sleeve cover:
• Fig. 2a shows a starting position in which a clamping member 51 is aligned with its downwardly projecting edge 51.1 parallel to a Spannspatzenlagerelement 52 having a groove 52.1, in which a screw 56 is positioned. If the screw 56 is located in the front in the groove 52.1, the clamping element 51 can be rotated relative to the Spannspatzenlagerelement 52.
• FIG. 2b shows how, during rotation, the edge 51.1 passes at a corner 53 of the clamping clip bearing element 52, FIG. when the screw is positioned at the very front of the groove.
• FIG. 2 d shows a position in which the screw 56 is drawn back within the groove 52. 1 so far that the edge 51. 1 rests against the clamping flange bearing element 52 at the front. In this position, a positive connection is given by the surfaces lying in front of each other and no more rotation possible.
• the lining cover element 25 includes a peripheral recess 25.1, into which a clamping element 61 of a clamping device 60 positively engages and is fixed against rotation.
• the clamping element 61 is mounted on a Spannpratzenlagerele- element 62, which is pressed with a projection 62.1 in a compatible recess in the end wall 12. The connection is made via a screw 66.
• Fig. 6 shows a modification of the previously described with reference to Figures 4 and 5 embodiment, wherein in a here Spannpratzenvorplatz 60 'no recess in the lid 25 is no longer present, but an anti-rotation is achieved in that a clamping member 61' is supported with its back directly to the inside of the side wall member 12.
• Fig. 7 shows the separate lining insert 20, which is formed completely in the illustrated embodiment of flat plates 21 ... 25.
• a liner end wall member 14 and liner sidewall members 21, 22 engage their upper edges in corresponding grooves in the liner cover member 25.
• the plate-shaped ele- ments 21, 22, 25 are connected to each other via clamping means, which are attached to the side facing away from the spinner wheel outside, so that there is no risk that the abrasive penetrates into threaded holes of the tension and blocks them.
• the end wall elements 23, 24 have large recesses to introduce or store the turbine with blast wheel.
• FIG. 8 shows a detail of the spinner wheel housing at the transition from the cover to the side.
• the end wall 14 is fixedly connected to the end wall lining element 24 via a screw connection 14.6.
• the end wall 14 is closed by a flange 14.5.
• the end wall lining element 24 has at its lateral edge positioning cams 24.1, one of which is shown in Fig. 3.
• a correspondingly compatible Nockenageaus originallyung 22.1 is formed on the opposite side.
• 9a shows the connection of the lining elements 22, 24, 25 in a detailed view. Here it can be seen in particular that in the cover element 25 grooves are introduced into which the elements 22, 24 are inserted.
• Fig. 9b a slightly modified connection is shown.
• the side wall elements 22 'and the end wall element 24' are provided with a stepped, stepped-fold-shaped upper edge. Accordingly compatible with the outer edges of the lid member 25 'are designed. Due to the shiplap formation of this compound results in a space-saving impact without overhang of the cover member at a triple deflection in the joint gap and a correspondingly good sealing effect against penetrating blasting.

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• Engineering & Computer Science (AREA)
• Mechanical Engineering (AREA)
• Structures Of Non-Positive Displacement Pumps (AREA)
• Clamps And Clips (AREA)
• Centrifugal Separators (AREA)
• Connection Of Plates (AREA)
• Grinding-Machine Dressing And Accessory Apparatuses (AREA)
• Gates (AREA)
• Saccharide Compounds (AREA)
• Supercharger (AREA)
• Manufacturing Optical Record Carriers (AREA)
• Mechanical Treatment Of Semiconductor (AREA)

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• 2007
  • 2007-02-28 US US12/224,579 patent/US8267753B2/en active Active
  • 2007-02-28 AT AT07726558T patent/ATE448910T1/de active
  • 2007-02-28 RU RU2008138897/02A patent/RU2417872C2/ru active
  • 2007-02-28 ES ES07726558T patent/ES2339178T3/es active Active
  • 2007-02-28 DE DE502007002045T patent/DE502007002045D1/de active Active
  • 2007-02-28 PL PL07726558T patent/PL1989022T3/pl unknown
  • 2007-02-28 WO PCT/EP2007/051922 patent/WO2007099135A2/fr active Application Filing
  • 2007-02-28 EP EP07726558A patent/EP1989022B1/fr active Active
• 2012
  • 2012-08-09 US US13/570,646 patent/US8360829B2/en active Active

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