DE1897209U - CENTRAL LARGE ROLLER BEARING. - Google Patents

Description

Eisenwerk ROTHE ERDE G »m.b * H.

Center-free slewing bearing

The innovation relates to a center-free, egg & or multi-row Large antifriction bearings with race rings and additional rings divided across the direction of rotation of the balls *

It is known to divide the outer ring of a wire ball bearing preferably in two equal halves transversely to the direction of travel of the balls to be divided * After inserting voting inserts into the separation points, these are bridged by two screws and the halves pressed together. The result is that the radial play perpendicular to the separation point is equal to 0, while in the direction of There is radial play. Since the roundness of the bearing and thus also the smoothness of the running depends on the bearing setting this roundness cannot always be present. There is also a ball bearing ring for Pahreeuge known, its a ring is made in several parts and is held in place by an undivided flat iron ring. A ball bearing ring for vehicles cannot absorb the forces that a slewing bearing without a center has to absorb.

The bearing according to the innovation avoids the aforementioned out-of-roundness and creates a center-free large roller bearing which is completely divided into ring segments, so that it is possible to build such a bearing around a finished construction. With the new store it is no longer necessary to dismantle heavy structures in order to replace a store 1 , the first installation can also take place completely independently of the current status of the structure receiving the store.

This was the case, for example, with the storage of the furnace gas closure bell not possible for a blast furnace that was equipped with normal roller bearings or with the previous wire ball bearings, the bearing can be changed effortlessly * The innovation makes it possible to change such a bearing without the upper ones having to remove heavy structures of the furnace that reach into the furnace through the free center of the bearing

The object is achieved according to the innovation in that all rings of a rolling element rotary connection, e.g. a wire ball bearing rotary connection radially into several ring segments be subdivided «In order to achieve the high accuracy that can be achieved with such slewing rings, also with the divided To obtain rings, it is suggested to add one or two additional, also radially divided intermediate rings to be installed in the bearing. By offsetting the individual separation points against each other and screwing the rings together by perpendicular Screw connections, i.e. axially acting connecting screws, the same running accuracy of the bearings as with undivided Bearing rings achieved. In suitable cases, instead of the division of the intermediate rings, ring-shaped parts of the upper and / or lower support structure or additional rings for precise fixing of the bearing are also used

The bearing according to the innovation can not only be designed as a grooved bearing »Ground, but also as wire ball bearings by inserting the running wires on the corresponding grooves designed as wire beds the bearing rings are inserted. The inaccuracies that can occur with only cross-split wire ball bearings, are in the newly carried out division by a Readjustability that can only be operated in the axial direction eliminated «It can be done by inserting adjustment shims.

Several embodiments of a bearing according to the innovation are shown schematically in the drawing.

Fig. 1 is a sectional drawing of a deep groove bearing rotary joint, in which the five rings that make up it / different Places are cut,

Fig. 2 is a section through a wire ball bearing rotary joint, which is formed from four cut rings and

Fig. 3 is a section through a deep groove bearing rotary joint, at the additional rings connected to the upper and lower support structure to form the rotary joint are used, so that again five cut bings are put together to form a rotary joint

In Figure 1, the five rings that form the rotary joint are shown in dash-dotted lines in one level each at the front left and top right. In the schematic perspective, each ring is cut radially at a different point. In the design of the rotary joint, these radial cuts are distributed as evenly as possible over the entire circumference. The outer rings are labeled 1 and 2, the inner rings 3, 4 and 5 · Rings 2 and 4 are used to increase and maintain the accuracy of a rotary joint with radially split rings · A hole for the screws connecting the ring segments is named with 6 . In the embodiment of the innovation as a wire ball bearing rotary connection according to Fig. 2, 1 ¹ and 2 ^{f are} the outer rings and 3 'and 4 ^{1 are} the inner rings, where 4' is to be regarded as an additional ring · 7 are the ball cages and 8 are the running wires. Serves to engage with the drive pinion an inner toothing 9 in which groove bearing according to Fig, 3 1 ^M and 2 ', the outer rings and 3 ^M, 4 ^M and 5 ^M, the inner rings · In this case, the ring 2 ^W with the upper support structure 11 and the Ring 4 "connected to the lower support structure 10 to form a unit«

Protection claims

Claims (4)

1295 May 25, 1964 E 14 785 / 47b Gm Fa. Eisenwerk ROTHE ERDE G.m.b.H. RA, 382 088 * 29 Protection claims: 1. Center-free, single or multiple row slewing bearing with transverse Race rings and additional rings divided for the direction of movement of the balls, characterized in that all Staggered rings (1 * 2,3,4,5) of a ¥ älzkörper rotary connection Places radially divided into ring segments and by means of axially acting connecting screws arranged perpendicular to the ring surface or the like. are connected »being the centering and compliance with the running accuracy of the bearing by inserting equally divided intermediate rings (2, 4) is. 2 «¥ roller bearing according to claim 1, characterized by gekeniazeich net that the intermediate rings (2,4) by radially divided additional rings (2 ", 4") on the upper and / or lower support structure (10,11) are replaced. 3 · Rolling bearings according to claims 1 and 2, characterized in that the additional rings (2 ^H , 4 ^M ) are connected to the support structure (10, 11) to form a unit. 4. Rolling bearing according to one or more of the preceding claims, characterized in that the radial sub-locations of the rings (ibis 5) over the entire circumference of the Camp are distributed » . ».. m-» UnMfeqt {U »***« n * 9 »« * $ * utMo * O hl dta wtotH «!« ««. Cnie. ««. . «. OW, o * *« r We *