DE2009562B2 - ABRASIVE WHEEL WITH INTERCHANGEABLE BLADES - Google Patents

Description

of blasting media, as they have any suitable shape in machines and support disks.

Systems for cleaning castings, descaling sen, which deviate from the shape shown,

of forgings and for similar work. Further details of the invention can be found in the

be turned. The drawing and description. It

Centrifugal wheels with a rotational sense are known

tion. This is made possible by the fact that this FIG. 1 shows a partial section through a centrifugal wheel in centrifugal wheels with symmetrical blades from a plane through GG (see FIG. 3),
(U.S. Patent 2119 813), with Fig. 2 showing a partial section through the blade showing a conversion of the centrifugal wheels for right-hand flange,

or left-hand rotation unnecessary. Such symmetrical /, · »F i g. 3 a view of the ejector wheel disk,

Shovels should have a F i g on both sides. 4 a view of the rear angled

wear-resistant lining, which is an unnecessary th blade flange.

Price increases. In contrast, the first F i g. 1 shows the centrifugal wheel housing 1

the blade according to the report only has a drive shaft 2 with flange 3 and support disk 4 on one side

wear-resistant lining. Due to its symmetry, the blade 5 is attached to the support disk 4, with

trie and the symmetry of the support disc in the case of the positioning pin 8 of the blade 5 in the drilling

minor retrofitting costs for tion 9 of the support plate 4 intervenes. SS is a for

Suitable for right or left rotation. The longitudinal axis of the blade is the vertical median plane,

Blades are also known which are provided with one and 7 ribs for covering the screw 13.

Flange angled at the rear over the entire 50 holes 11 with countersinks on both sides

Blade length on the impeller disk attached to the attachment of the support disk on the shaft flange 3

(U.S. Patent 3,287,858). In both cases, screw 12.

len the blades are embedded in the disc. In Fig. 2 is the angled attachment

This requires a correspondingly thick and therefore supply flange 6 of the blade 5 to be seen, which is

heavy disc with expensive machining because of 55 pen 7 connects to the blade web. A screw hole

the high hardness that this part must have in order to be fastened is denoted by 14 and the ar-

the abrasive attack of the jet medium on the bilateral blade surface with 15.

resist. In addition, the long flange causes the Fig. 3 shows the support disc4 with drilling

a large weight of the blades and thus high gene 9 for the positioning pin 8, threaded holes

Price. Ultimately, a centrifugal wheel is known according to 60 10 for the screws 13 and holes 11 for the

British patent 743 381, the disk of which the disk 4 is attached to the shaft flange 3.

no recessed indentations for the blades. 4 shows the contour of the fastening flange

and that can therefore be easier at this point. 6 with positioning pin 8 and screw hole

In this version, however, the disc with the 14th

Mounting flange on the shaft in one piece, 65 According to the one shown in FIG. 1 recognizable construct that for each direction of rotation a complete set tion results that the support disc 4 no Nu-blades and holding parts are provided inüs- ten or profile identifies so that they can, for. B. made of sheet metal sen. can be produced. All breakthroughs can

nen be round and are continuous, so that it is screwed on with lenflansch, one a centrifugal wheel simple drilling machines manufactured from one side for clockwise or counter-clockwise rotation are given due to their symmetry

ι! .β T ^ L j · »« · «. P .... . , i- ii__ o_u _n .. £ s1 on »ΐη <* ff for Kfirnts-

can be. By taking these measures, the Front and back are mirror images, so that, depending

according to which side the support disc on the weI- 5 den.

for right or left rotation e g y

metrics, the same bucket can be attached to a support disc mounted for clockwise or counter-clockwise rotation

1 sheet of drawings

Claims (1)

In contrast to the rare case Claim that centrifugal wheels by umpoiea of their drive motors work in both clockwise and counter-clockwise When flying on a shaft flange, it is very common that shot blasting machines screwed «blasting abrasive wheel, consisting of 5 in some places with right-hand rotation and in other from a point provided with through bores with counterclockwise rotating impellers. NEN, flat support disc, on which the blades are piece. An important requirement is therefore with an angled attachment spinner for clockwise or counterclockwise rotation with the screwed on the flange and equipping it with a positioning part. The fulfillment cones are locally fixed, thereby ge-io this requirement results in eme Vennindening of indicates that each bore (11) is used to store spare parts and enlarged piece Attaching the support disc (4) to the shaft flange pay during manufacture. (3) with a bore (9) for a positioning The invention accordingly proposes a special pin (8) on the same straight line 15 of a centrifugal wheel with exchangeable blades (GG) going through the simple, easy and inexpensive to manufacture construction method of the support disc center point and on both sides the same ansen front, which is characterized in that each bores, that the threaded bores tion for attaching the support disk to the shaft (10) for attaching the blades (5) with respect to the flange with a hole for a position zapder the direction of rotation of the centrifugal wheel behind the fen on the same straight line going through the support bores (9) for the positioning pin (8) and has the same countersinks on a tangent (TT) through these sides, so that the and that the positioning pin (8) and the threaded holes for fastening the blades screw hole (14) of each blade (5) in e: ner to the longitudinal axis perpendicular to the direction of rotation of the centrifugal wheel, the central plane (SS) ter the bores for the positioning pins are in each case. as lie on a tangent through this and that the Positioning pin and the screw hole each The blade lie in a central plane perpendicular to its longitudinal axis. The invention relates to a Schleuderrad Konstruk- It can of course the Posi ionierzapf jn tion with interchangeable blades ^for the Bosch lever 3 ° on the blade and the associated hole in the r