Screw-type solid bowl centrifuge with multistage planetary gear train

The invention pertains to a screw-type solid-bowl centrifuge with a driven drum that is supported at both end surfaces and turns about a horizontal axis, and with a transport screw that is rotatably and coaxially arranged in the drum and can be driven at a different speed than the drum, where the dr...

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Main Author Beyer, Hans-Joachim
Format Patent
LanguageEnglish
Published 14.05.2002
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Abstract The invention pertains to a screw-type solid-bowl centrifuge with a driven drum that is supported at both end surfaces and turns about a horizontal axis, and with a transport screw that is rotatably and coaxially arranged in the drum and can be driven at a different speed than the drum, where the drive contains a multistage planetary gear train, the housing jacket of which is connected to the drum jacket, and with the drive shaft of the multistage planetary gear train being connected to the transport screw. The invention relates to a screw-type centrifuge configured in such a way that the use of multistage planetary gear trains allows for high peripheral speeds of the drum and large drum diameters. According to the invention the drum bearing on the gear train side is positioned between two stages of the multistage planetary gear train. The housing jacket of the multistage planetary gear train, which is connected to the drum jacket and therefore rotates at the same r.p.m., has an intermediate piece which has a small diameter and is housed by the drum bearing together with a shaft connecting the gear train stages. The system provided for in the invention, according to which the drum bearing on the gear train side is positioned between two stages of the multistage planetary gear train, is used in the case of very large decanters for which the drum rotates at very high peripheral speeds.
AbstractList The invention pertains to a screw-type solid-bowl centrifuge with a driven drum that is supported at both end surfaces and turns about a horizontal axis, and with a transport screw that is rotatably and coaxially arranged in the drum and can be driven at a different speed than the drum, where the drive contains a multistage planetary gear train, the housing jacket of which is connected to the drum jacket, and with the drive shaft of the multistage planetary gear train being connected to the transport screw. The invention relates to a screw-type centrifuge configured in such a way that the use of multistage planetary gear trains allows for high peripheral speeds of the drum and large drum diameters. According to the invention the drum bearing on the gear train side is positioned between two stages of the multistage planetary gear train. The housing jacket of the multistage planetary gear train, which is connected to the drum jacket and therefore rotates at the same r.p.m., has an intermediate piece which has a small diameter and is housed by the drum bearing together with a shaft connecting the gear train stages. The system provided for in the invention, according to which the drum bearing on the gear train side is positioned between two stages of the multistage planetary gear train, is used in the case of very large decanters for which the drum rotates at very high peripheral speeds.
Author Beyer, Hans-Joachim
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Snippet The invention pertains to a screw-type solid-bowl centrifuge with a driven drum that is supported at both end surfaces and turns about a horizontal axis, and...
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Title Screw-type solid bowl centrifuge with multistage planetary gear train
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