DE1943321U - MIXING DRUM BEARING FOR CONCRETE MIXING MACHINES. - Google Patents

Description

RA. 236 389 * -5.5.66

Applicant

Company URBAN GMBH., 562 Velbert / Rhld., Industriestr. 35,

Mixing drum bearing for concrete mixing machines

The innovation relates to a mixer drum bearing for concrete misso machines, in which the inwardly curved bottom of the drum is stiffened by a plate washer and the drum's axis of rotation is firmly anchored in a bush welded in the crossbeam.

In such a mixing machine, the mixing drum) is in operation the same exposed to permanent strong alternating bending stress. To ensure that the drum runs smoothly and smoothly ensure that their bearings must therefore be as far apart as possible on the one hand and be arranged in such a way on the other hand that they inevitably assume a coaxial position to the ring gear carried by the drum. At the same time, the bearing must but also be trained in the way? that the drum can easily be detached from the drum rotation axis if necessary » In addition, in order to achieve a simple and inexpensive production of the bearing the same must be designed in such a way that this mainly the drum components can be used. The known bearings do not meet these requirements of the type mentioned above, since these usually have several additional castings and the like to be machined in expensive operations. use"

- 1 -

A mixing drum bearing for a drum of the type mentioned at the beginning Gattang, to which the deficiencies described do not adhere to which fully meets the requirements, is created according to the innovation in that the two roller bearings supporting drum axis of rotation penetrates both the plate washer and the drum base in such a way that the one lower roller bearing in one inwardly cup-shaped recess of the plate washer and the upper "roller bearing in one on the inner surface of the drum base screwed cap rests. Here, according to the innovation, the rolling bearings are given a solid support in that the lower rolling bearing rests with its inner ring on the face of the traverse bushing and with the outer ring in the recess of the plate washer rests, the upper roller bearing rests with its inner ring on a shoulder shoulder of the drum axis of rotation and its Outer ring by means of the cap against the reinforced by a bead Perforated edge of the drum base is pressed. This design of the drum mounting initially has the advantage achieved that for receiving the roller bearings on the one hand the inwardly curved drum base and on the other hand the outwardly curved The plate bottom is designed accordingly, so that the bearings are as far apart as possible and thus the Yiech-Seibiegebeinspruchungen that occur the mixing drum can collect in an advantageous manner «

Since the drum axis of rotation or its roller bearing is arranged in a cup-shaped recess in the plate washer, besides «· which inevitably ensures a coaxial bearing of the drum to its ring gear. In addition, since the newly trained

- 2nd

The warehouse does not require any additional cast parts, only a simple stamped part (cap), storage is simple and tail « lig in the production »By simply removing the on the drum base With the screwed end cap, the mixing drum can also be easily detached from the drum's axis of rotation if necessary. In order to avoid any dimensional differences in the attachment of the To compensate for the sprocket worn by the mixing drum? According to the innovation, the inner ring of the lower roller bearing is at rest with the interposition of one or more intermediate rings on the traverse bushing.

The subject of innovation is on the drawing in an exemplary embodiment shown, namely show?

. "Fig. 1 in natural size an average through the innovation according to trained drum bearing and

Pig. 2, on a reduced scale, an average through the lower part of the mixing drum with the axis of rotation fixed in the cross member.

In the cross member 1, the bush 2 is welded, in which the drum axis of rotation 3 is firmly anchored by means of the screw 4. The axis 3 penetrates both the cup washer 5 and the curved one Drum base 6. The axis 3 carries two roller bearings 7 and 8, the one lower bearing 7 with its inner ring being interposed of intermediate rings 9 rests on the end face of the sleeve 2 and is held by means of the snap ring 10. With the outer ring, the roller bearing 7 lies in an inwardly cup-shaped manner Well 11 of the plate 5 a. The inner ring of the other upper roller bearing 8 rests on a shoulder shoulder of the axis 3 and

is held by means of a snap ring 12. The outer ring of the roller bearing 8 is pressed against the edge of the hole in the drum base 6, which is stiffened by a border 14, by means of the cap fastening screws 15, by a cap 13 which extends over the axle end 3 protruding slightly into the drum. The mixing drum can be removed from the axle 3 by loosening the fastening screws 15.

- A

Claims (3)

P.A. 2 36 Protection claims see chap 1. Mixing drum storage for concrete Misoh machines, in which the inwardly curved bottom of the 'drum through a plate washer is stiffened and the drum axis of rotation in one in the traverse welded sleeve is firmly anchored, characterized in that the two roller bearings (7, 8) supporting axis (3) and the cup washer (5) and the drum base (6) penetrates in such a way that the one lower roller bearing (7) in an inward direction cup-shaped recess (11) of the plate (5) and the other upper roller bearing (8) in one on the inner surface of the drum base (6) screwed cap (13) is arranged. 2. drum bearing according to claim 1, characterized in that the Rolling bearing (7) with its inner ring on the face of the traverse bushing (2) and rests with the outer ring in the recess (11) of the cup washer (5), whereby the rolling bearing (8) rests with its inner ring on a shoulder shoulder of the axis (3) and its outer ring by means of the cap (13) against the through a Flanging (14-) reinforced perforated edge of the drum base (6) pressed will. 3. Drum bearing according to claim 1 and 2 _f, characterized in that the inner ring of the roller bearing (7) rests on the cross-member bushing (2) with the interposition of one or more intermediate rings (9).