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US 6,802,644 B2Granted
Internal mixer with bearing housings having a dirt particle outlet
AssigneeThyssenKrupp Elastomertechnik GmbH
InventorsWalter Häder, Andreas Limper
Life of this patent
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Abstract
In an internal mixer, the bearing housings of the bearing arrangements for the journals of the rotors are mounted directly on the end walls of the housing. The gaps which are formed between the rotor and the end wall and between the journal and the end wall are connected to the outside by way of outlets. These outlets bridge the bearing which is encapsulated in the bearing housing.
Claims12
An internal mixer, comprising
- a housing (1),
- which encloses a mixing chamber (4), and
- which has end walls (2, 3) facing each other;
- at least one rotor (9, 10),
- which is disposed in the mixing chamber (4),
- which has mixing devices,
- which defines a gap (36) towards the end wall (2, 3), and
- which has journals (15, 16, 15″) that pass through the end walls (2, 3) out of the mixing chamber (4), forming an annular gap (37) that is connected to the gap (36);
- and
- bearing arrangements (17),
- which are disposed outside the mixing chamber (4),
- which have a bearing housing (20, 20′, 20″), and
- in each of which a journal (15, 16, 15″) is run on a bearing (26);
- wherein the bearing housings (20, 20′, 20″) are disposed on the end walls (2, 3);
- and
- wherein allocated to each bearing housing (20, 20′, 20″) is at least one dirt-particle outlet (40, 40″) which is connected to the annular gap (37) and bridges the bearing (26).
13 more elements
Dependencies are inferred from the claim text.