DE8616596U1 - Device for attaching rollers - Google Patents

Description

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SKF GmbH Schweinfurt, June 18, 1986

DE 8 6 015 DE TPA / ko / mh

Laufro I I en

The innovation relates to a device for fastening rollers according to the preamble of the main claim

A device of this type is known from US Pat. No. 2,909. This is used to clamp two axially to each other staggered drive belt and is provided with two support bodies, on each of which a roller Is arranged rotatably via roller bearings. Both rollers are attached to a support plate, which is opposite to a The machine block can be swiveled around a fastening bolt is. This enables the drive belts to be tensioned together. In addition, after solving another Screw fastening the outer roller opposite the The inner straps can be pivoted separately, which enables both straps to be individually tensioned. the

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The supporting bodies of both tensioning pulleys lie over radius surfaces to each other and are because of the mutual adjustability very solid, which in the * production a great deal of effort is required, if this individual adjustability is not required, it results Starting points for a simpler and more cost-effective implementation,

The task of the innovation is to provide a device for fastening to create rollers of the type mentioned above, which is inexpensive and easy to manufacture and which is universal for stringing together several rollers suitable is.

The object is achieved in that the support body is designed essentially sleeve-shaped that a free

1 ¹ Sf end is provided with a reduced diameter compared to the outer surface of the seat for the bearing, which extends axially over the side surface of the bearing and that the other free end has a cup-shaped seat bore 0 adapted to the diameter of the seat for the bearing.

As a result, it is possible to achieve any number of running rollers axially juxtaposed with a single embodiment of the support body. The production is simple and can e.g. B. done in extrusion technology. Herste II outlay and storage are therefore also reasonably priced because only one version of the support body can be used for all of the running rollers in a row. In the production of a cylindrical seat is provided with a smaller diameter F for the later mounted bearing, up over the side surface of the bearing continues on the respective free end of time.

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This creates a section which runs cylindrically with the seat surface for the bearing and which is inserted into a corresponding section Seat bore can be introduced at the other free end of the adjoining support body. Through this is already a radially form-fitting fastening achieved between the two support bodies. Axial fastening is carried out using a screw bolt that passes through the support body leads and a tightening on another Machine part causes.

In further exemplary embodiments of the innovation is the j Carrier body is pot-shaped with a bottom, wherein

this at a distance from the free ends on both sides forming cup-shaped recesses and / or outside the Seat of the bearing arranged or as a separate, on a radially inwardly directed flange section

the support body adjacent disc can be executed.

The bottom can be arranged at one end of the support body and the support surface for the head of the Form screw bolt. The further explanations result Advantages in particular when extruding the support body. When the B ^ den is arranged between the free ends, can extrude extrusion using forward and backward flow technology take place. Due to the arrangement outside the seat of the bearing, preferably on the side of the seat bore tensioning of the bearing by fastening it with the screw bolt is largely avoided. In the Execution with a separate disc as the bottom only needs a board surface or a board inside the support body an annular flange can be provided, which can be produced with particularly little deformation work, 1 'whereby the production of the support body from tubular

j Hafbzeug becomes possible.

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The marked according to a further feature of the innovation Reinforcement of the edge can be necessary in particular with relatively thin-walled support bodies, to avoid crushing the free end when fastening.

In a preferred embodiment of the innovation the free end of the support body has a large axial length in the area of the seat bore and is through Separation of ring sections designed to be shortened. This measure is universal and simultaneous very individual adaptation of the support body possible in all axial positions «This is particularly true when the rollers are attached to the mounting surface of a machine block at a greater distance but should have a small distance from one another.

The innovation is described below using the example shown in the drawing.

Show it:

Fig. 1 shows the partial longitudinal section of a device with two rollers and

FIG. 2 shows the partial longitudinal section of one of the two used for the device according to FIG Support body.

The in Ffg. 1 device shown consists of two axially aligned support body / barrel unit th, which are fastened to a machine block 2 by means of a screw T. Each roller 3 is u on one

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own support body 4 arranged rotatably via a ball bearing 5 each. Both support body U go from one ^e: nzigen in Fig from the illustrated embodiment. 2. The one shown on the left in FIG. 1 corresponds identically to this embodiment. The one shown on the right is subsequently shortened by an annular section at both free ends 6, 7. However, a full installation would also be possible.

The support body 4 according to FIG. 2 is produced using extrusion technology and has 8 pot-shaped surfaces on both sides of a base Recesses 9 on. The bottom 8 has a central hole

10 for screw 1. The free one shown on the right The end 6 is provided with a seat 11 for the ball bearing 5 which is smaller in diameter than the jacket.

The seat 11 is made wider than the ball bearing 5, so that a section 12 is about halfway Width of the ball bearing 5 protrudes beyond its side surface. The adjoining the seat 11 Shoulder 13 serves as an attachment to the ball bearing 5. The other re free end 7 of the support body 4 has a seat bore

11, which has the same diameter as the seat surface 11 for the ball bearing 5 and thus can be slipped onto the seat surface 11 of an adjoining support body 4. The edge 15 is reinforced radially at this end. In FIG. 1 , the support body 4 shown on the right and plugged onto the section 12 of the support body 4 shown on the left and protruding beyond the ball bearing 5 can be seen. The ball bearing 5 in question is clamped axially between the rim 13 of the left and the edge surface 16 of the right Trsgkörpers 4 and thereby fastened * The ball bearing 5 of the roller 3 shown on the right is by caulking

of the shortened, free end 6 attached. The screw 1 is guided through the bores 10 in the bases 8 of both support bodies 4 and lies with its head 17 on the base 8 of the right support body 4. Thereby both are trag body 4 attached to the machine block 2 at the same time.

The bottoms 8 of the support body 4 are outside the seat 11 for the ball bearings 5. A deformation of the Bottom 8 by the axial fastening over the head 17 the screw 1 has no effect on the ball bearing 5. By the radially reinforced edge 15 of the left The support body 4 shown creates a larger support surface.

The illustrated embodiment of the device according to the innovation is only an example. In particular, the support body can also be used for individual rollers len or the like. Be used.

Claims (8)

I 111 SKF GmbH Schweinfurt, 06/18/1986 DE 86 015 DE TPA / ko / mh for the attachment of running surfaces 1. A device for securing rollers, consisting of at least one supporting body (H) with a support surface (11) for a further one coaxially to it which receives a roller 13) which is rotatably mounted thereon and which can be fixed by means of a screw bolt (1) arranged support body / roller unit, characterized in that the support body (H) is designed essentially sleeve-shaped, that a free end (6) with a diameter opposite the Reduced outer surface area of the seat (11) for the Bearing (5) is provided, which axially over the side \ area of the bearing (5) reaches away, and that the other free end (7) one of the seat (11) for the bearing (5) has a diameter-matched, cup-shaped seat bore (14). 2. Device according to claim 1, characterized in that η that the support body is pot-shaped with a bottom (8) is executed. -2- I ■ I I * · · Il · · · It * · · · t t · Ii ■ · · t · i Il B · · · I I I β ■ t -2- 3. Apparatus according to claim 1 or 2, characterized in that the bottom (8) at a distance from the free Ends (6, 7) on both sides to form pot-shaped recesses (9). 4. Device according to claims 1 to 3, characterized in that the bottom (8) is arranged outside the seat surface (11) of the bearing (5). 5. Device mch claims 1 to 4, characterized characterized in that the bottom (8) as a separate, on a radially inwardly directed flange portion of the support body (4) bearing disc is executed. 6. Device according to claims 1 to 5, characterized in that the edge (15) of the with Seat bore (14) provided end (7) is carried out radially reinforced. 7. Device according to claims 1 to 6, characterized in that the free end (7) of the support body (4) in the region of the seat bore (14) a has great axial length and by severing is designed to be shortened by ring sections. 8. Device according to claims 1 to 7, characterized in that a further a second roller blind (3) receiving the support body (4) with its Seat bore (14) on the seat surface (11) of the free end (6) protruding from the bearing (5) of the first support body (4) in a radially form-fitting manner and this bearing (5) between a rim (13) of the first and the edge surface (16) of the second support body (4) axially through the screw bolt (1) is arranged taut.