US2740164A - Top weighting roller - Google Patents

Top weighting roller Download PDF

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Publication number
US2740164A
US2740164A US281611A US28161152A US2740164A US 2740164 A US2740164 A US 2740164A US 281611 A US281611 A US 281611A US 28161152 A US28161152 A US 28161152A US 2740164 A US2740164 A US 2740164A
Authority
US
United States
Prior art keywords
bearing housing
roller
gap
bearing
rolls
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
US281611A
Other languages
English (en)
Inventor
Schmid Erwin Friedrich
Raible Julius
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
SKF GmbH
Original Assignee
SKF Kugellagerfabriken GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by SKF Kugellagerfabriken GmbH filed Critical SKF Kugellagerfabriken GmbH
Application granted granted Critical
Publication of US2740164A publication Critical patent/US2740164A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01H—SPINNING OR TWISTING
    • D01H5/00—Drafting machines or arrangements ; Threading of roving into drafting machine
    • D01H5/18—Drafting machines or arrangements without fallers or like pinned bars
    • D01H5/70—Constructional features of drafting elements
    • D01H5/74—Rollers or roller bearings
    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01H—SPINNING OR TWISTING
    • D01H2700/00—Spinning or twisting machines; Drafting devices
    • D01H2700/245—Conception or fabrication of drafting cylinders

Definitions

  • top rolls of top weighting rollers cannot be removed for cleansing purposes without that special arrangements be made and without the use of special tools, it is of the greatest importance to prevent for as long periods as possible the objectionable entangling of some flying fibres into compact matter that may obstruct the spacing gap.
  • the restraining or braking action of the top rolls also occurs as a consequence of the radial impact of the top rolls which, though small in itself, may still suflice to squeeze together the penetrating fibres within the spacing gap into a mass getting more and more compact.
  • top rolls form, width, formsk a shorter sealing gap. ending in an abruptly expanding hollow space.
  • the space between the top roll and the bearing housing is sealed by.v a U-n'ng attached to the bearing house, which Ur-ring accumulations and dust tend to hardenv the. felt packing ring which again results in a ⁇ braking effect.
  • top Weighting roller construction in which, however, the top rolls are supported by roller bear'- ings fitted on a nonrevolving shaft, provides for a narrow sealing gap communicating with an enlarged hollow space
  • our invention consists in a top weighting roller for drawing mechanisms ofV Spinninu machines, 1n its elements, and the relation of the elements one to the other, as are described in the specification and sought to be defined in the claims.
  • Fig. 1 is a longitudinal section taken through a pair of top rolls, illustrating one embodiment of our inventionk on the left-hand side and a modification on the right-hand side;
  • Fig. 2 is a partly sectioned view of another modification of a pair of top rolls.
  • Fig. 3 is a partly sectioned View of still another modification of a pair of top rolls.
  • a beari g housing 2 embraces a roller shaft to the width of the ring flange 8. From the relief rv of ⁇ the top roll, as well as from a relief b provided in the bearmg housing behind the gap area, the hollow space 10 and may be subdivided by an intermediate web 11.
  • the chosen shape of the hollow space proves. advantageous in that the flying libre particles that may have got into it cannot reach the bearing directly but are first subjected to a detour.
  • the gap may also be of an angular design.
  • Fig. 1,. onthe right an angular gap 9, is shown. Both the' straight gap 9 and the angular gap 9' is formed directly by the top rolls and the bearing housing.
  • a flange sleeve 14- communicating with an abruptly enlarged hollow space 10'.
  • Fixed between the bearing outer ring 3 and the inturned end of the bearing housing 2 is a hood-like adapter 17 freely embracing the roller shaft 1 and forming with the bearing outer ring 3 an intermediate chamber 1S.
  • a hanged sleeve is resiliently and removably inserted into the hollow space of each top roll to form the gap with the bearing housing.
  • a flange sleeve 19 is inserted in the cylindrical bore of top rolls 6".
  • Another flange sleeve 20 is mounted on the bearing housing end.
  • the two flanges 21 and 22 of the sleeves 19 and 20, respectively, form with the bearing housing surface a ring gap 23.
  • the end of the ange sleeve 29 is bent-in to form a bottom ange 24 that embraces the roller shaft freely so that an intermediate chamber 25 is formed between the bottom flange 24 and the bearing outer ring 3.
  • two inserts are used to form the gap.
  • top rolls form directly or indirectly with the bearing housing surface short and very narrow axially extending sealing gaps with adjoining abruptly expanded hollow spaces.
  • the bearing balls rotating in grooves of the roller shaft are associated with cuplike bearing outer rings which are embraced by the ends of the bearing housing and enclose the roller shaft freely.
  • iianged sleeves may be tted into the bores of the top rolls and/or on the bearing housing ends to form angular sealing gaps.
  • the iianges of such sleeves may be directed towards each other.
  • the ends of the sleeves fitted on the bearing housing ends may be bent inwardly to form a bottom flange and also to serve as protective wall against the infiltration of fibre particles into the rolling bearings.
  • an intermediate chamber is formed in which flying fibre particles are retained if they actually get through the hollow space adioining and many times surpassing the sealing gap in dimensions to the additional chamber.
  • Such an intermediate chamber may also be formed by a hoodlike piece of formed sheet metal attached between a bearing outer ring and an end of the bearing housing, and embracing the roller shaft playing freely.
  • Another arrangernnt of the invention provides for radial bores in the top rolls, communicating with the hollow spaces provided for possible loose y accumulations so that after removal of the elastic covers pulled over the top roll members, which have to be renewed at infrequent intervals, the hollow spaces can easily be cleared by means of a needlelike tool or the like.
  • top rolls and the bearing housing may interlock with steplike surfaces as well.
  • Top weighting roller for drawing mechanisms of spinning machines, comprising a shaft, apair of top rolls fixediy mounted at the ends of the shaft, each roll having a wide hollow, the hollows opening toward one another, a stationary bearing housing rotatably receiving the shaft in annularly spaced relation and extending between and into the rolls, an antifriction bearing provided at each end of the bearing housing within the hollow of a roll, each bearing includinga grooved raceway provided in the shaft, to support a row of balls, and a cuplike outer race ring for a cup-contact with the balls, the outer race rings enclosing the shaft with play, the end portions of the bearing housing at least partly embracing the outer race rings, the rolls and the bearing housing being arranged and shaped so as to help form sealing gaps, said gaps being short and narrow in comparison with the hollows, the hollows expandingabruptly at ⁇ the inner ends of the gaps.
  • each sleeve being resiliently and removably inserted into each. of said hollows, each sleeve being provided with a iiange, said iianges and the relieved -surfaces of the bearing housing forming angular gaps.
  • a sleeve being mounted in the hollow of each of lthe top rollers and ori each end of the bearing housing, respectively, said sleeves being provided with anges, said iianges helping to form sealing gaps.
  • each of the sleeves mounted on the ends of the bearing housing being bent inwardly at its end and forming a bottom ange, each of said bottom iianges forming an intermediate chamber and embracing the rollershaft freely.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Textile Engineering (AREA)
  • Rolls And Other Rotary Bodies (AREA)
  • Spinning Or Twisting Of Yarns (AREA)
US281611A 1951-04-13 1952-04-10 Top weighting roller Expired - Lifetime US2740164A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE302117X 1951-04-13

Publications (1)

Publication Number Publication Date
US2740164A true US2740164A (en) 1956-04-03

Family

ID=6103948

Family Applications (1)

Application Number Title Priority Date Filing Date
US281611A Expired - Lifetime US2740164A (en) 1951-04-13 1952-04-10 Top weighting roller

Country Status (6)

Country Link
US (1) US2740164A (ko)
BE (1) BE510522A (ko)
CH (1) CH302117A (ko)
FR (1) FR1058957A (ko)
GB (1) GB708387A (ko)
NL (1) NL83255C (ko)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3381350A (en) * 1965-03-10 1968-05-07 Kemmler Sigmund Twin pressure-roller unit with ball bearings

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0510260Y2 (ko) * 1986-01-28 1993-03-12
GB2227529B (en) * 1986-01-28 1991-04-03 Csu Ltd Rotary structure

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US71477A (en) * 1867-11-26 Frederick c
US1258868A (en) * 1915-08-11 1918-03-12 Woonsocket Machine & Press Company Top roll.
US1286936A (en) * 1917-06-21 1918-12-10 Leon W Campbell Top roll.
US2267443A (en) * 1940-09-27 1941-12-23 Gen Motors Corp Top roll
FR884584A (fr) * 1941-08-02 1943-08-20 Ver Kugellagerfabriken Ag Paire de cylindres ou rouleaux fixes pour bancs d'étirage
US2355510A (en) * 1941-12-31 1944-08-08 Gen Motors Corp Top roll
US2525592A (en) * 1947-07-02 1950-10-10 Louis M Cotchett Top roll for textile drafting mechanisms

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US71477A (en) * 1867-11-26 Frederick c
US1258868A (en) * 1915-08-11 1918-03-12 Woonsocket Machine & Press Company Top roll.
US1286936A (en) * 1917-06-21 1918-12-10 Leon W Campbell Top roll.
US2267443A (en) * 1940-09-27 1941-12-23 Gen Motors Corp Top roll
FR884584A (fr) * 1941-08-02 1943-08-20 Ver Kugellagerfabriken Ag Paire de cylindres ou rouleaux fixes pour bancs d'étirage
US2355510A (en) * 1941-12-31 1944-08-08 Gen Motors Corp Top roll
US2525592A (en) * 1947-07-02 1950-10-10 Louis M Cotchett Top roll for textile drafting mechanisms

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3381350A (en) * 1965-03-10 1968-05-07 Kemmler Sigmund Twin pressure-roller unit with ball bearings

Also Published As

Publication number Publication date
BE510522A (ko)
FR1058957A (fr) 1954-03-22
CH302117A (de) 1954-10-15
GB708387A (en) 1954-05-05
NL83255C (ko)

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