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Double-disk seal for top rollers of drafting assemblies

A technology of sealing device and drafting device, applied in drafting equipment, processing of textile materials, textiles and papermaking, etc., can solve problems such as functional damage, failure to achieve, and inability to withstand tests.

Inactive Publication Date: 2008-08-27
TEXPARTS GMBH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

And functional impairment occurs due to fibrous fuzz that collects on the sealing disc
The construction of the sealing device described in DE-AS 15 10 922 with these disadvantages cannot actually stand the test and thus will not be realized

Method used

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  • Double-disk seal for top rollers of drafting assemblies
  • Double-disk seal for top rollers of drafting assemblies
  • Double-disk seal for top rollers of drafting assemblies

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0024] The upper roller pair 1 shown in FIG. 1 has two roller bodies 2 , 3 which are mounted on a common continuous shaft 6 by means of roller bearings 4 , 5 . A saddle 8 is formed on the shaft 6, on which the shaft 6 is held by a conventional holding device. The inner cavities of each roller body 2, 3 are respectively sealed against contamination by a double disc sealing device 7, 7A according to the present invention.

[0025] FIG. 2 shows an enlarged representation of the double disc seal 7 acting between the roller body 2 and the shaft 6 . The support element for the sealing disk 9 is designed as an angle ring 10 , wherein the disk-shaped part 11 serves as a stop for the sealing disk 9 . The tubular part 12 of the angle ring 10 has a stop surface 13 on which a support element serving as a disc 14 is mounted and fixed by caulking. The disk 14 forms a stop for the sealing disk 15 . The sealing disk 9 and the sealing disk 15 are identical in structure. The sealing disks 9...

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PUM

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Abstract

The invention relates to a double-disk seal for top rollers of drafting assemblies. According to the invention, a roll body (2) is rotatably mounted on each end of an axle (6). Said double-disk seal comprises sealing disks (25) which are designed and arranged in such a manner that, in order to seal, they form a narrow slip-free sealing gap against the roller body (2). These sealing disks (25) are axially supported by supporting elements, of which at least one is provided in the form of an angle ring (24). The supporting elements (24) are realized in such a manner that another sealing gap (19,20) is situated in front of each outer sealing gap located between the sealing disk (25) and roller body (2). The complexity of production and assembly as well as the occurrence of failures are reduced due to the inventive double-disk seal.

Description

technical field [0001] The invention relates to a double disc seal for the upper roll of a drafting unit. Background technique [0002] In the case of upper rollers or pressure roller pairs on the drafting device of spinning frames, the interior of the roller housing, which usually contains the roller bearings, is sealed against the fiber fluff formed by the ambient air, e.g. as in DE 40 39 804 A1 or DE 195 09 055 C1 as published. The sealing device described therein consists of an integral U-shaped bobbin with double-sided flanges. These sealing devices, on the one hand, achieve the sealing effect from the two sealing gaps formed by the flanges to the outer ring hole, and on the other hand, achieve the sealing effect through the cavity between the two flanges. Fibers and dirt particles penetrating the outer sealing gap collect and are prevented from further penetrating into the roller bearing by the inner sealing gap. Such a seal is simple and cost-effective to manufactu...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): D01H5/74F16C33/78
CPCF16C33/78D01H5/74F16C2340/18
Inventor 威廉·比肯马耶尔
Owner TEXPARTS GMBH