# US 10,307,764 B2 · Machinery frame for a roller crusher

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- Number: US 10,307,764 B2
- Document ID: US10307764B2
- Status: Granted
- Kind: B2
- Application number: 15/161,225
- Filed: 2016-05-21
- Published: 2016-11-24
- Granted: 2019-06-04
- Earliest claimed: 2015-05-21
- Assignees: TAKRAF GmbH
- Applicants: TAKRAF GmbH
- Inventors: Burkhard Petack; Marko Schmidt; Karsten Ebenhan; Patrick Neufeldt
- Web page: https://patentgrep.com/patent/US10307764B2

## CPC

- B02C 4/02: with two or more rollers
- B02C 4/28: Details
- B02C 4/30: Shape or construction of rollers
- B30B 3/04: co-operating with one another, e.g. with co-operating cones
- B30B 15/04: Frames; Guides
- B02C: CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN ({household tools and machines for pulverising foodstuffs, e.g. coffee and spice mills A47J42/00; pharmaceutical mortars A61J3/02; mechanical processing of refuse and garbage B03B9/06; dressing mould materials by grinding B22C5/04}; obtaining metallic powder by crushing, grinding or milling B22F9/04; {recovery of plastics by disintegrating B29B17/00; crushing raw materials in starch making C08B30/02; beaters for papermaking D21D1/02; crushing devices specially for transport in mines E21F13/002; slag crushing devices F23J1/00; fuel milling devices in combustion apparatus F23K1/00; household devices for crushing coal F24B15/02; ice disintegrating devices F25C5/02})
- B30B: PRESSES IN GENERAL (producing ultra-high pressure or ultra-high pressure and high temperature to effect modifications of a substance, e.g. for making artificial diamonds B01J3/00 ){(compressing means for refuse receptacles B65F1/1405)}

## Abstract

The present invention relates to a machine frame for a roll crusher that has two side walls and two end walls, where the mentioned end walls accommodate the storage of the rolls. The end walls are split horizontally in the area of the mounting of the rollers, and vertically between the mountings of the upper part. One advantage is that to remove a roller, removal of the respective upper end wall is sufficient. In a preferred embodiment of the invention, the adjacent upper parts of the end walls do not touch. An advantage of this is that tilting of the end wall upper parts among each other or in contact with the side walls is prevented during removal. Furthermore, the gap resulting from the distance between the front wall upper parts in the preferred embodiment would be sealed, with the advantage that no material and dust can exit.

## Claims

### Claim 1

A roller crusher comprising a machinery frame and crushing rollers removably mounted to the machinery frame,
wherein said machinery frame comprises two side walls and two end walls, with said crushing rollers being removably mounted to the end walls of the machinery frame,
wherein each end wall is taking up two adjacent bearings for the crushing rollers of the roller crusher, and
wherein each end wall is separated as follows:
horizontally in a roller mounting area in a horizontal plane that is containing axes for the crushing rollers and dividing each end wall into a lower cowl portion and an upper cowl portion, and
vertically between the adjacent bearings and between the upper cowl portion of each end wall, so that in the roller mounting area of each end wall, the upper cowl portion separates into two adjacent end wall upper parts that are releasable from the lower cowl portion and from each other.

### Claim 2 (depends on 1)

A roller crusher according to claim 1, wherein the upper cowl portions of the adjacent bearings do not touch each other.

### Claim 3 (depends on 1)

A roller crusher according to claim 1, wherein the adjacent end wall upper parts of each end wall are connected to each other in a sealed manner.

### Claim 4 (depends on 1)

A roller crusher according to claim 1, wherein the upper cowl portions of the adjacent bearings are connected by at least one connecting element.

### Claim 5 (depends on 4)

A roller crusher according to claim 4, wherein the at least one connecting element is a planar structure, which rests on the end wall to be connected to the upper cowl portions.

### Claim 6 (depends on 1)

A roller crusher according to claim 1, wherein the two adjacent end wall upper parts of the upper cowl portion of each end wall are connected to their respective adjoining side wall and the lower cowl portion of each end wall.

### Claim 7 (depends on 6)

A roller crusher according to claim 6, wherein a connection between a side wall lower cowl portion and end wall upper cowl portion and/or the connection between the end wall upper parts of the upper cowl portion and the adjoining side wall is by a screw connection.