Drive unit

A technology of drive unit and rotary joint, which is applied in the direction of passing components, rolling contact bearings, and rotating bearings. It can solve the problems of support and shaft clearance, unfavorable consumption of inherent lubricating materials, and increased temperature, and achieve small concentricity deviation. Effect
CN102216663BInactive Publication Date: 2015-08-26SMS DEMAG AG
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Patent Information

Authority / Receiving Office
CN ¡ China
Patent Type
Patents(China)
Current Assignee / Owner
SMS DEMAG AG
Publication Date
2015-08-26
Estimated Expiration
Not applicable ¡ inactive patent

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Abstract

The invention relates to a rotary union for supplying and / or discharging a medium under pressure into or out of an axial cavity of a rotating machine part, comprising a union part (12), which does not rotate and is fixed relative to the device, a rotary union part (15) and with bearing means as well as sealing components, which act in a radial sealing plane between the rotary union part (15) and the union part (12) fixed relative to the device. The rotary union is characterized in that the bearing means comprise individual step bearings (13, 14), which fix the radial distance between the union part (12) fixed relative to the device and the rotary union part (15).
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Description

technical field

[0001] The invention relates to a swivel joint (DrehdurchfĂźhrung) for feeding and / or discharging a pressurized medium into and / or out of an axial cavity of a rotating mechanical part, the swivel joint having a non-rotating A joint part, a rotating joint part with a bearing means and a sealing means which acts in a radial sealing plane between the rotating joint part and the joint part fixed on the device. Background technique

[0002] A swivel joint generally includes a non-rotating joint part fixed at the device and a joint part rotating together with a rotating mechanical part, wherein a sealing device is arranged between the joint part fixed at the device and the rotating joint part. Such swivel joints are used to supply coolant to rolls or rollers, which are to some extent shafts or axles supported at their ends by bearings. Under heavier loads, these rotating mechanical parts suffer from a certain deflection of the shaft, which causes a so-called angula...

Claims

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