DE9012811U1 - Grate cooler - Google Patents

Description

&igr; · · ■■■

Grate cooler

The invention relates to a moving grate cooler according to the preamble of claim 1.
5

I It is known that the movable beauty frames of

'"■ Store in freezers on roller beds &idigr;&lgr;&igr;. To the &idigr;'.&agr;-

§ ger of these roller blocks are 1=but - especially with

I higher operating temperatures - regarding lubrication and

I &iacgr;&ogr; sealing is to be carried out in accordance with the law. The external sealing of these eolian blocks is very simple.

f; The invention is therefore based on the object of

>; 15 moving grate cooler as defined in the preamble of claim 1

I so that the support

&iacgr;-; fastening of the oscillating frame to the fixed abutment

I used equipment can be manufactured in a simple manner

[ can and in operation - even at higher temperatures -

f 20 is practically maintenance-free.

This object is achieved according to the invention by the ^{characterizing} features of claim 1. Expedient

Embodiments of the invention are the subject of the dependent claims.

&igr; In the inventive moving grate cooler, the input

direction for supporting the swing frame by support

[' swing formed, which at their upper and lower

30 end are provided with a convex curved support surface and roll freely over these support surfaces on the oscillating frame and on the stationary abutment.

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II · * 4 » · III

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Such a support is completely maintenance-free, since a pure rolling process takes place on the contact surfaces, which does not require lubrication and whose function cannot be impaired by temperature influences.

In order to avoid sliding movements between the support arms on the one hand and the swing frame and the stationary abutment on the other hand, a guide device is expediently provided according to the invention, which at the same time prevents the support arms from tipping in the longitudinal direction of the cooler. With suitable dimensions, no significant wear on this guide device is to be expected.

Two embodiments of the invention are illustrated in the drawing. They show

Fig.l a section (transverse to the longitudinal direction of the moving grate cooler) through the support and

guidance system,

Fig.2 a sectional view along the line II-II

the Fig.l,
25

Fig. 3 and 4 Representations corresponding to Fig.2, but

in different movement positions

of the Schwir.grahmen,

Fig.5 a schematic representation (corresponding

Fig.l) of another embodiment,

Fig.6 is a detailed view (in the direction of arrow VI) of Fig.5.

The grate cooler shown in detail in Figs. 1 to 4 contains a conveyor belt that is driven by a drive device (not shown).

ij.uuv.uny (i.e. perpendicular to the plane of the drawing in Fig. 1) back and forth movable oscillating frame 1, which is supported on a stationary abutment 2 by support swings 3, 3', which are connected to one another via two rods 4, 5.

The support arms 3, 3' are each provided with a convexly curved support surface 3a or 3b at their upper and lower ends, over which they roll freely on a running shoe 6 or 7 connected to the swing frame 1 or the stationary abutment 2. The running shoes 6, 7 are provided with a flat running surface 6a or 7a for this purpose.

In order to avoid sliding movements between the support arms 3, 3' on the one hand and the swing frame 1 and the stationary abutment 2 on the other hand, a guide device is also provided. It contains two guide members 8, 8', which are firmly connected to the support arms 3, 3' via the rods 4, 5. The guide members 8, 8' each have a guide slot 8a at their upper and lower ends.

Furthermore, the guide device mentioned includes two guide pins 9, 10 and 9', 10' attached to the swing frame 1 and the stationary abutment 2, the center distance of which corresponds to the distance between the two support surfaces 3a, 3b of the support arms 3, 3' and which are inserted into the

engage in the lower and upper guide slots 8a of the guide members 8, 8'.

The center distance of the guide pins 9, 10 and 9', iO' ^ is thus selected such that practically no relative movement occurs in the guide slot 8a (< 0.1 mm). Significant wear on the guide device is therefore not to be expected.

Fig. 2 to 4 illustrate how, when the swing frame 1 moves back and forth (in the direction of the double arrow 11), the support arms 3, 3' roll freely with their upper and lower support surfaces 3a, 3b on the swing frame 1 or on the stationary abutment 2. The guide device (guide members 8, 8' and guide pins 9, 10 or 9', 10') prevent sliding movements on the support surfaces and tilting of the support arms in the longitudinal direction of the cooler.

In the second embodiment illustrated in Figs. 5 and 6, the support rockers 3, 3' are provided with a convexly curved support surface at their upper and lower ends in the same way as in the embodiment explained above, over which they roll on the running shoe 6 or 7 connected to the swing frame 1 or the stationary abutment 2.

Deviating from the embodiment according to Figs. 1 to 4, the guide device is designed in the variant in Figs. 5 and 6.

An upper and lower toothed segment 12, 13 and 12', 13' are connected to the two support arms 3, 3' in a rotationally fixed manner. These toothed segments are in engagement with

Toothings 6b, 7b and 6b', 7b', which are provided on the running shoes 6, 7 and 6', 7' and form straight toothed racks (cf. Fig.fi). The average toothing distance of the toothings 6b, 7b and 6', 7b' corresponds to the distance between the two support surfaces Ja, 3b of the support rockers 3, 3'.

In this embodiment, too, the guide device ensures that the support surfaces 3a, 3b of the supporting rockers 3, 3' perform a pure rolling movement and no sliding movement relative to the swing frame 1 or the stationary abutment 2.

Claims (5)

I * · Jt It Il I · Protection claims P 7143 1. Slide cooler, containing a) a conveyor belt driven by a drive device dcr direction back and forth to the movable swing frame (;P for driving movable grate plates, b) and a device for supporting the swing frame on a fixed abutment, characterized in that c) the device for supporting the swing frame is formed by support swings (3, 3') which are each provided with a convexly curved support surface (3a, 3b) at their upper and lower ends and roll freely over these support surfaces on the swing frame (1) and on the stationary abutment (2). 2. A moving grate cow according to claim 1, characterized by a guide device for preventing sliding movements between the support rockers (3, 3 ^�Lgr; ) on the one hand and the swinging frame (1) and the stationary Abutment (2) on the other hand. 3. Reciprocating grate cooler according to claims 1 and 2, characterized in that a guide device is provided in the region of each support rocker (3, 3'). 4. Reciprocating grate cooler according to claim 2, characterized by the following elements of the guide device: a) at least one guide member (8, 8') which is connected to the support arm (3, 3') in a rotationally fixed manner and which is provided with a guide slot (8a) at its upper and lower ends, b) two guide pins (9, 10 or 9', 10') fastened to the oscillating frame (1) or to the stationary abutment (2) and engaging in the guide slots (8a) of the guide member (8, 8'), the centre distance of which corresponds to the distance between the two support surfaces (3a, 3b) of the support arms (3, 3'). 5. Reciprocating grate cooler according to claim 2, characterized by the following elements of the guidance system:
15 a) an upper and lower toothed segment (12, 13 or 12', 13') connected in a rotationally fixed manner to the support arm (3, 3'), b) two on the swing frame (1) or on the stationary Wi the bearing (2) intended for engagement of the toothed segments (12, 13 or 12', 13') (6b, 7b or 6b', 7b'), the average tooth spacing of which corresponds to the distance between the two support surfaces (3a, 3b) of the support rockers (3, 3') corresponds.