DE2914766A1 - AXIAL PRESSURE BEARING COMBINATION OF THE SPINDLE AXLE OF A CONE BREAKER - Google Patents

Description

29H766

- ο ■ * "

Axial thrust bearing combination of the spindle axis of a cone crusher

The subject of the present invention is an axial thrust bearing combination the spindle axis of a cone crusher, - soft, tone intermediate plate has, the upper surface of which is part of a concave spherical surface is against which the correspondingly shaped as a part of a convex spherical surface lower end of the upper part of the spindle axis lies.

In a common cone crusher thrust bearing combination, the lower surface of the intermediate plate is the thrust bearing combination a flat surface and thus the lower sliding surface of the thrust bearing combination is correspondingly flat. It follows, that the movement figure of the lower surface of the intermediate plate of the thrust bearing combination is 2 to 3 times as large as the movement figure of the upper surface of the intermediate plate.

The present invention has the object of the movement figures Balance the upper and the lower sliding surface of the intermediate plate and at the same time the controllability of the intermediate plate in its correct to improve geometric location. The thrust bearing combination according to the invention is mainly characterized in that the lower Surface of the intermediate plate is also shaped as a part of a concave spherical surface, against which surface the correspondingly as a part of a convex spherical surface is formed upper end of the lower part of the spindle axis. The subclaims give advantageous Further education.

The invention is explained in more detail in the description below and the accompanying drawings, where

909845/0722

29K766

1 shows a cone crusher as a sectional side view, which has a thrust bearing combination of the spindle axis as an embodiment of the invention,

Fig. 2 the thrust bearing combination of the spindle axis of a cone crusher according to FIG. 1 as enlarged and

FIG. 3 shows, in the manner corresponding to FIG. 2, an ordinary thrust bearing combination of the spindle axis.

It is not necessary, the entire construction of the in Fig. to describe cone crusher illustrated in detail because it is known with the exception of the detail of construction concerned by the invention and because the construction and operation of the Cone crusher can be determined from the drawings in sufficient detail.

The cone crusher comprises a spindle 1 which has a conical crushing jaw 3, which is mounted on the spindle axis 2a, 2b. Only the swing of part 2a of the spindle axis is compulsorily controlled, while the part 2a of the axle can rotate freely about its central axis. The setting of the cone crusher, i.e. the size of the Crushing gap 5 has been arranged to be adjustable by means of a hydraulic adjustment device. When pressure means the room is fed below the part 2b of the spindle axis, the spindle 1 rises and the crushing gap 5 becomes smaller. Correspondingly, when pressure medium is removed from the space 6, the spindle 1 lowers and the setting of the cone crusher increases.

In order to enable the positively controlled oscillatory movement of the upper axle part 2a of the spindle axis 2a, 2b of the ^ gel crusher, is between the parts 2a and 2b of the spindle axis a thrust bearing

909845/0722

BATH ORIGINAL

2.9U766

combination 4 according to Figure 2 has been arranged. The thrust bearing combination 4 has an intermediate plate 7, the upper surface 8 of which is part of a concave spherical surface and against which correspondingly as part of a convex spherical surface

formed lower end 10 of the upper part 2a of the spindle axis. The lower surface 9 of the intermediate plate 7 of the thrust bearing combination 4 is also shaped as part of a concave spherical surface, against which the correspondingly as part of a convex Spherical surface formed upper end of the lower axle part 2b of the spindle axis is located.

For comparison, a previously known thrust bearing combination 4 ^{J of} the spindle axis 2a ', 2b' of a cone crusher is shown in FIG. is a flat surface. In such conventional solutions, in which the lower surface 12 of the intermediate plate 7 'of the thrust bearing combination 4' is flat, the movement figure of the lower surface of the intermediate plate 7 'in relation to the lower axle part 2b of the spindle axis is 2 to 3 times as large as that Movement figure of the upper surface of the intermediate plate 7 'in relation to the upper axle part 2a of the spindle axis.

According to FIG. 2, in the thrust bearing combination 4 according to the invention, the curvature radius Rl of the upper part 8 is a concave one Spherical surface of the intermediate plate 7 smaller than the radius of curvature R2 of the lower part 8 of a concave spherical surface of the intermediate plate 7. If you change the ratios R1: R2 of the curvature radius of the upper and lower sliding surfaces of the intermediate plate, you can see the moving figures of the upper and lower sliding surfaces the intermediate plate 7 influence. The radius of curvature

Θ223

909845/0722

. , / _ 29H766

R 1 and R2 of the sliding surfaces 8 and 9 of the intermediate plate 7 are preferably chosen so that the movement paths of the intermediate plate 7 in relation to the upper part 2a of the spindle axis and to lower part 2b of the spindle axis correspond to one another, as is the case in the example of FIG.

By means of the thrust bearing combination according to the invention, the movement figures occurring in the bearing (sliding speeds) are compensated and the loose intermediate plate 7 has a better controllability in the correct geometric position.

⁹²²³ 909845/0722

Claims (3)

ve; l, it-ii _i} ZLiTL..ι 2 9 H 7 6 6 : -aieruuIte
8000 Munich 22 Steinsdorfstrasse 21-22 Telephone 089/22 94 41 RAUMA-REPOLA OY
Lakomon Tehtaat, PL 306-307, 33101 Tampere 10 / FINLAND Axial thrust bearing combination of the spindle axis of a cone crusher Patent claims: l.f Axial thrust bearing combination of the spindle axis of a cone crusher, which has an intermediate plate, the upper surface of which is part of a concave spherical surface, against which the corresponding the lower end of the upper part of the spindle axis, formed as part of a convex spherical surface, is located, characterized in that that the lower surface (9) of the intermediate plate (7) also as a part a concave spherical surface is formed against which the correspondingly formed as a part of a convex spherical surface upper End (11) of the lower part (2b) of the spindle axis. 2. Thrust bearing combination according to Ansoruch 1. characterized in that the curvature radius (Rl) of the upper part (3! A concave spherical surface of the Tv-ischenp '^ tte ( ⁷ ) of the thrust bearing combination (4) is smaller ":" ·: - Wö- exercise radius (R2) of the ^r "909845/0722 29H766 lower part (8) of a concave spherical surface of the intermediate plate (7). 3. thrust bearing combination according to claim 1, characterized in that the curvature radius (Rl and R2) of the sliding surfaces (8, 9) of the intermediate plate (7) are chosen so that the movement paths of the intermediate plate (7) in relation to the upper part (2a) and to the lower part (2b) of the spindle axis essentially correspond to one another. 909845/0722