US2788633A - Spindle centering device - Google Patents

Spindle centering device Download PDF

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Publication number
US2788633A
US2788633A US387408A US38740853A US2788633A US 2788633 A US2788633 A US 2788633A US 387408 A US387408 A US 387408A US 38740853 A US38740853 A US 38740853A US 2788633 A US2788633 A US 2788633A
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United States
Prior art keywords
spindle
bearing
casing
centering member
centering
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Expired - Lifetime
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US387408A
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English (en)
Inventor
Birkigt Louis
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Hispano Suiza Suisse SA
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Hispano Suiza Suisse SA
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H1/00—Toothed gearings for conveying rotary motion
    • F16H1/02—Toothed gearings for conveying rotary motion without gears having orbital motion
    • F16H1/04—Toothed gearings for conveying rotary motion without gears having orbital motion involving only two intermeshing members
    • F16H1/12—Toothed gearings for conveying rotary motion without gears having orbital motion involving only two intermeshing members with non-parallel axes
    • F16H1/16—Toothed gearings for conveying rotary motion without gears having orbital motion involving only two intermeshing members with non-parallel axes comprising worm and worm-wheel
    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01H—SPINNING OR TWISTING
    • D01H7/00—Spinning or twisting arrangements
    • D01H7/02—Spinning or twisting arrangements for imparting permanent twist
    • D01H7/04—Spindles
    • D01H7/08—Mounting arrangements
    • D01H7/12—Bolsters; Bearings

Definitions

  • the present invention has for its object improvements in the spindle-centering systems used for spinning or twisting frames of the rocking spindle type. It relates more specifically to spindles controlled by a worm and worm wheel and adapted to assume, more particularly when passing through predetermined critical speeds, a slight slope having for its result a transverse shifting of the lower end of the spindle.
  • the lower end of the oscillating spindle of a frame of the above-mentioned type rests in a step-bearing adapted to assume slight transverse movements in response to the modifications in the angular setting of the spindle, the movements of said step-bearing being controlled, at least beyond a predetermined amplitude of oscillation, by a centering member having a conical or similarly shaped bearing surface engaging a shoulder rigid with the stationary casing of the frame; the novel feature of the invention resides in that said centering member is urged into contact against said shoulder through the mere action of gravity, i. e. without resorting to the action of any elastic means.
  • Fig. l is an elevational partly sectional and partly torn off elevational view of a spinning spindle driven by a worm gear and provided with centering means in accordance with a first embodiment of the invention.
  • Fig. 2 is a similar view on a. larger scale of the lower part of a spindle of the same type executed in accordance with a second embodiment of the invention.
  • the spindle is controlled in the conventional manner by a worm wheel 1 meshing with a hollow worm 2 rigid with a coaxial sleeve 3 held centrally with reference to the casing 4 of the frame through the agency of an upper bearing 5 and of a lower bearing 6, said bearings being for instance constituted by ball bearings and being located respectively above and underneath the area of engagement between the worm Wheel 1 and the worm 2.
  • the sleeve 3 is engaged with a clearance by the actual spindle 7 which is mounted so as to be capable of oscillating within predetermined limits around a pivotal center C located above the upper bearing 5, the oscillating movement of said spindle around said pivotal center being accompanied by a transverse shifting of the lower end 70 of the spindle.
  • a centering member 14 is provided for cooperation with the oscillatory step-bearing, said centering member 14 engaging a shoulder 15 rigid with the casing 4 of the frame, the above-mentioned conical bearing surface A on the centering member being urged against the shoulder 15 solely through the action of gravity.
  • said centering member which is not urged by a spring into engagement with the shoulder 15 will execute, by reason of said vibrations of the frame, a number of successive bounces of a very small amplitude which have a tendency to lower the center of gravity of the centering member under the action of gravity; said bounces will allow said centering member to return gradually into its medial position and consequently will ensure the desired return of the step-bearing 8 into its medial position.
  • FIG. 1 provides s design. for'the centering system'whereby, the centering member 14 has a tendency to become centered through" the'sole action of its own weight as explained.
  • weight of the centering, member should be sufficient forthe member 14 to play efiiciently not only the part of a recentering member for the step bearing 8, but also that of a damperforthe oscillations'of said stepbearing.
  • the critical parameters are the weight of the cenflange P (which is practically a sphere with its center at v C) on asocket rigid with the casing 4'.
  • the 'upper flange-shaped edge 9a of said socket 9 is held fast betweenthe outer race of the lower ball bearing 6 and an element rigid with the casing 4.
  • the bodyof the centering member-14 assumes theshape 'of a sleeve having a'generally cylindrical shape and the height 'ofwhich is'substantially equal to that of the step-bearing 8.
  • Said body includes:an'upper'extension constituted by a' cylindrical sleeve 14a fitted with some-play between the above-mentioned socket'9 and-a wall rigid with the casing '4, said wall 13' forming for instance a sleevecar rying the bearing 6.
  • the step,bearin gv 8 and the centering member14 form then advantageously a unitary member, whereby the conical or the like self-centering bearing.
  • surface A is urgedagainst the stationary shoulder 15 no longer under the action of the weight of'the' sole centering'member 14 but alsounder the action of the-combined weights ofth'e step-bearing S, of the spindle 7 and of the bobbin carried by said spindle.
  • the actual weights of the spindle and of the bobbin are adapted to operate as centering forces byreason of said spindle beingslidably mounted so that consequently any trans-v verse-shifting, of the step-bearing has for it'sactionto raise the spindle which has obviously then a tendencyto return towards'its lowermost position under the actionof gravity.
  • Such a centering system incorporating a pendular step.- bearing has the advantage of being more stable than a system for which the conical bearing surface A lies, as in the case of Fig. 1, underneath the point at which the spindle 7 engages the bottom of the step-bearings:
  • Fig.1 2 shows by way of eXemplification-a preferred embodiment .of such acentering system.
  • the step-bearing 8 engages with a force fit a bore provided to this end insidev the member 14, said step-bearing being held fast through its lowerend, for instance by a crimped edge.
  • the centeringrzmember 14 includes as precedinglypan upwardly directed-extension constituted by the sleeve" 14a which stationary cup 19 surrounding the lower end of the tubularworm '2, thespindlepassing throughsaid cup with a 'clear ance suchthatthere remains an annular gap allowing the passage of lubricant through it betweenthe inner edge of the cup and the spindle, the cross-sectional area of said gap'being. less than that of the free space extending between the cooperating-surfaces of the tubular worm and of thespindle throughout the lower sectionof saidspindl'e:
  • the invention provides a spinning spindle of the oscillatory type provided with a particularly simple high efficiency centering system adapted to' damp even the high frequency" vibrations of the bobbin-carrying spindle.
  • a frame the combination of a casing, a vertical spindle adapted to oscillate slightly with reference to the casing, a worm gear carried by the casing and driving said spindle to make it rotate round its axis, a step-bearing adapted to carry the lower end of the spindle and to assume a slight lateral shifting with reference to the casing under the action of the oscillations assumed by the spindle, a centering member surrounding the stepbearing and vertically shiftable with reference thereto, a shoulder rigid with the casing and provided with an upwardly flaring surface coaxial with the centering member, said centering member being provided with an upwardly and outwardly directed surface resting on the bearing surface of the shoulder under the sole action of its own weight, independently of any further connection with the casing.
  • a frame the combination of a casing, a vertical spindle adapted to oscillate slightly with reference to the casing, a worm gear carried by the casing and driving said spindle to make it rotate round its axis, a step-bearing adapted to carry the lower end of the spindle and to assume the action of the oscillations assumed by the spindle, a centering member surrounding the step-bearing with a predetermined annular clearance between said step-bearing and said centering member, a shoulder rigid with the casing and provided with an upwardly flaring bearing surface coaxial with the centering member, said centering member being provided with an upwardly and outwardly directed surface resting on the bearing surface of the shoulder under the sole action of its own weight independently of any further connection with the casing and being adapted to damp the oscillating movements of the step-bearing exceeding the amplitude defined by the clearance between said centering member and said stepbearing.
  • a frame the combination of a casing, a vertical spindle adapted to oscillate slightly with reference to the casing, a worm gear carried by the casing and driving said spindle to make it rotate round its axis, a step-bearing adapted to carry the lower end of the spindle and to assume a slight lateral shifting with reference to the casing under the action of the oscillations assumed by the spindle, a centering member surrounding the step-bearing and fitted over the outer periphery of the latter, a shoulder rigid with the casing and provided with an upwardly flaring surface coaxial with the centering member, said centering member being provided with an upwardly and outwardly directed surface resting on the bearing surface of the shoulder under the sole action of its own weight, independently of any further connection with the casing and being adapted to damp the oscillations of the stepbearing away from a normal vertical position.
  • a frame the combination of a casing, a vertical spindle adapted to oscillate slightly with reference to the casing, a bobbin adapted to be carried by said spindle, a worm gear carried by the casing and driving said spindle to make it rotate round its axis, a step-bearing adapted to carry the lower end of the spindle and to assume a slight lateral shifting with reference to the casing under the action of the oscillations assumed by the spindle, a centering member surrounding the step-bearing and engaged by the latter, a shoulder rigid with the casing and provided with an upwardly flaring surface coaxial with the centering member, said centering member being provided with i spindle adapted to oscillate slightly with reference to the.
  • a bobbin adapted to be carried by said spindle, a worm gear carried by the casing and driving said spindle to make it rotate round its axis, a step-bearing adapted to carry the lower end of the spindle and to assume a slight lateral shifting with reference to the casing under the action of the oscillations assumed by the spindle, a
  • centering member surrounding the step-bearing and rigid with the latter, a shoulder rigid with the casing and provided with an upwardly flaring surface coaxial with the centering member, said centering member being provided with an upwardly and outwardly directed surface resting on the bearing surface of the shoulder under the sole action of its own weight associated with that of the stepbearing, of the spindle and of the bobbin on the spindle, independently of any further connection with the casing.
  • a frame the combination of a casing, 21 vertical spindle adapted to oscillate slightly with reference to the casing, a bobbin adapted to be carried by said spindle, a worm gear carried by the casing and driving said spindle to make it rotate round its axis, a step-bearing adapted to carry the lower end of the spindle and to assume a slight lateral shifting with reference to the casing under the action of the oscillations assumed by the spindle, a centering member surrounding the step-bearing and engaged by the latter, a shoulder rigid with the casing and provided with an upwardly flaring surface coaxial with the centering member and located at a level higher than that at which the lower end of the spindle engages the step bearing, said centering member being provided with an upwardly and outwardly directed surface resting on the bearing surface of the shoulder under the sole action of its own weight associated with that of the step-bearing, of the spindle and of the bobbin on the spindle, independently of any further
  • a frame the combination of a casing, a vertical spindle adapted to oscillate slightly with reference to the casing, a bobbin adapted to be carried by said spindle, a worm gear carried by the casing and driving said spindle to make it rotate round its axis, a step-bearing adapted to carry the lower end of the spindle and to assume a slight lateral shifting with reference to the casing under the action of the oscillations assumed by the spindle, a centering member surrounding the step'bearing and rigid with the latter, a shoulder rigid with the casing and provided with an upwardly flaring surface coaxial with the centering member, means preventing any rotation of the centering member with reference to the casing, said centering member being provided with an upwardly and outwardly directed surface resting on the bearing surface of the shoulder under the sole action of its own weight associated with that of the step-bearing, of the spindle and of the bobbin on the spindle, independently of any further connection with the casing.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Textile Engineering (AREA)
  • Spinning Or Twisting Of Yarns (AREA)
US387408A 1952-10-28 1953-10-21 Spindle centering device Expired - Lifetime US2788633A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
LU314282X 1952-10-28

Publications (1)

Publication Number Publication Date
US2788633A true US2788633A (en) 1957-04-16

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US387408A Expired - Lifetime US2788633A (en) 1952-10-28 1953-10-21 Spindle centering device

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US (1) US2788633A (en(2012))
BE (1) BE523816A (en(2012))
CH (1) CH314282A (en(2012))
GB (1) GB730849A (en(2012))
LU (1) LU31771A1 (en(2012))

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2940246A (en) * 1955-10-15 1960-06-14 Brevets Aero Mecaniques Spindle including a centrifugal clutch
US3309860A (en) * 1965-05-03 1967-03-21 Keyser Johann Jacob Spinning or twisting spindle with a dead spindle shank
US3916610A (en) * 1974-06-26 1975-11-04 Whitin Machine Works Roving frame bolster

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT242034B (de) * 1962-04-07 1965-08-25 Amparo Fiol Martinez Spindel für Spinnmaschinen

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US727255A (en) * 1901-08-27 1903-05-05 Thomas Ashworth Foot-step for spindles.
US1924176A (en) * 1931-07-01 1933-08-29 Saco Lowell Shops Roving frame
GB539410A (en) * 1940-05-04 1941-09-09 York Street Flax Spinning Co Ltd Improvements in bearings for the spindles of roving and of spinning and twisting frames
US2351951A (en) * 1940-08-01 1944-06-20 Marquette Metal Products Co Spindle for textile mill use
US2671702A (en) * 1949-03-29 1954-03-09 Meadows Mfg Company Spindle bearing
US2756117A (en) * 1952-03-13 1956-07-24 Louis M Cotchett Bolsters for spinning frames

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US727255A (en) * 1901-08-27 1903-05-05 Thomas Ashworth Foot-step for spindles.
US1924176A (en) * 1931-07-01 1933-08-29 Saco Lowell Shops Roving frame
GB539410A (en) * 1940-05-04 1941-09-09 York Street Flax Spinning Co Ltd Improvements in bearings for the spindles of roving and of spinning and twisting frames
US2351951A (en) * 1940-08-01 1944-06-20 Marquette Metal Products Co Spindle for textile mill use
US2671702A (en) * 1949-03-29 1954-03-09 Meadows Mfg Company Spindle bearing
US2756117A (en) * 1952-03-13 1956-07-24 Louis M Cotchett Bolsters for spinning frames

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2940246A (en) * 1955-10-15 1960-06-14 Brevets Aero Mecaniques Spindle including a centrifugal clutch
US3309860A (en) * 1965-05-03 1967-03-21 Keyser Johann Jacob Spinning or twisting spindle with a dead spindle shank
US3916610A (en) * 1974-06-26 1975-11-04 Whitin Machine Works Roving frame bolster

Also Published As

Publication number Publication date
LU31771A1 (en(2012))
CH314282A (fr) 1956-06-15
GB730849A (en) 1955-06-01
BE523816A (en(2012))

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