US1246409A - Mounting of rotary spindles for twisting and spinning machines and the like. - Google Patents

Description

B. W. FIELLMAN.

MOUNTING 0F ROTARY SPINDLES FOR TWISTING AND SPINNING MACHINES AND THE LIKE.

a APPLICATIOH FILED. JUNE 3, I9i6: 7 1,246,409. Pmnted Nov. 13,1917.

2 SHEETS-SHEET I.

I {NVENTOR WITNESSES w B. W. FJELLMAN.

MOUNTING OF ROTARY SPINDLES FOR TWISTING AND SPlNNlNG MACHINES AND THE LIKE.

- APPLlCATiON ms'o JUNE 3. 19m.

1 246,409. Patented Nov. 13, 1917.

2 SHEETSSHEET 2,

INVENTOR 6\ By A ltorneys,

thc'spindle is removed.

inv rnn snares PATENT orrron.

BENGT WIKTOR FJELLMAN, OF GOTTENBORG, SWEDEN, ASSIGNOR T0 AKTIEBOLAG ET SVENSK A KULLARGERFABRIKENJ OF GOTTENB RG, SWEDEN, A CORPORATION OF SWEDEN.

MCUNTINGDF ROTARY SPINIDLES FOE TWISTING AND' SPINNING MACHINES AN D THE LIKE. 0

Specification of Letters Patent.

Patented Nov. 13, 1917.

Application filed June 3, 1916. Serial No. 101,493.

To all whom it may concern:

-Be it known that I, Braver Huron FJELL- MAN, a subject of the King of Sweden, residing at Gottenborg, in the Kingdom of Sweden, have invented certain new and useful Improvements in Mountings of Edtary Spindles for Twisting and Spinning Machines and the like, of which the follow.- ing is a specification.

t has already been proposed to mount rotary spindles for twisting and spinning machines, and the like, on ball bearings. In devices of this kind hitherto known, the bearing is, generally, so arranged in a stationary sleeve holding the spindle that the whole bearing will be removed with the spindle, when the latter is lifted out or" the sleeve. When the spindle is to be reinserted, it is, therefore, connected with dilliculties to make the bearing enter the sleeve.

It has also been proposed to have the outer ring of the ball bearing firmly connected to the spindle and to place its'inner ,ring on the stationary sleeve, whereby in ment is objectionable, inasmuchas, in carelessly handling the detached spindle, the balls will easily escape and be lost.

In order to remove this drawback, the inner ring of the ball bearing is provided according to the invention, with an annular groove or raceway for the balls, which'are kept in position, by a ball retainer, on the inner ring, when the spindle and the outer ring are removed.

In the drawings, Figures 1 to 5 show each one form of embodiment of the invention. Figs. 1 and 2 show'longitudiual sections of means for mounting a twisting or spinning spindle. and Figs. 3 to 5 show such means in partial longitudinal section and partial side elevation.

In all the forms of embodiment, the lower part of the spindle 1 is-surrounded, in usual manner. by a sleeve 2, which, in turn. is surrounded by an outer sleeve 3 provided, at its outer side, with threads for securing it Such an arrange to .the frame of the spinning or twisting machine and formed, at its upper end, as, or provided with, an oil receptacle 31. Confor the bobbin, not shown, and, for the other, a protective cover for the oil receptacle 31. Attached to the outer sleeve 3 isfa hook 7, which is normally held by a spring in the vnectedv to the spindle liS a whirl 4, which, suitably, forms, for one thing, a holder 5 shown position, in order to prevent the spindle from being lifted out, when the bobbin is to be removed from the spindle, said hook being movable laterally sufficiently to permit the spindle 1 to be lifted out ofthe sleeve 2. 7 All details above described are 4. The ring 9 is provided with a track. for a the ballsflvhich, moreover, are kept in position by a ball retainer-15. The track onthe outer ring, or the whirl, of the bearing is made cylindrical and suitably dilates coni-' cally downward so that the outer ring (the whirl) and the spindle can be easily removed and replaced over the balls retained by the ball cage 15 in the track of the ring 9. In this form of embodiment, the spindle 1 in usual manner rests with its conical point in a corresponding recess in the sleeve 2 which in this form can be made of cast iron. space should be provided between the spindle 1 and the sleeve 2 to prevent friction between the said parts. This space widens downward so as to form an oil chamber, in that the spindle 1 tapers downwardly,'in a known manner. I

The form of embodiment shown in Fig. 2 diilers from that according to Fig. 1 only in the inner ring of the bearing being made It is to be observed that a certain.

integral with the sleeve 2, which to that end disposed substantially in the plane of theball bearing, and that such ball bearing,

when the parts are in their operative position, is at the upper end of the stationary sleeve, the mounting supporting the rotary spindle in a substantially vertical position.

In the forms of embodiment shown in Figs. 3 to 5, ball bearings are used which 7 are able to support the spindle and at the same time hold it radially. Thus, in this case, the spindle 1 need not rest with its point on the bottom of the sleeve 2 or on a special disk, but it need only have a lateral guide '11 at its lower end.

In the form of embodiment. shown in Fl 3, the inner ring of the ball bearing formed of a ring 9 secured to the sleeve 2, said ring being provided with a track for the series of balls. The outer ring of the bearing formed of a ring 12 secured to the whirl l and provided with a track partly covering the balls, said track being continued downward by a cylindrical bore, so that the outer ring can be raised together with the spindle and replaced around the series of balls,

which are kept in position by a ball retainer 1.5.

In Fig. 4 a bearing is shown having two series of balls 8 and 81, respectively, the upper series 81 of which serves to take up axial thrust and bears on. a conical or a spherical part of the track of the outer ring, which latter is made integral with the whirl, while the lower ball series 8 bears on a cylindrical part of the same track and, coi'isequently,

cannot take up but radial pressure. Both series of balls run in tracks in the sleeve 2 forming the inner ring.

Fig. 5 differs from Fig. at only in that the oil receptacle 31 is formed in Fig. 5 of a ring 13 attached to the sleeve 3, while, in Fig. 4, it is formed in the sleeve 3 proper.

in order to avoid any tendency to bending stresses on the spindle, the bearing is placed, in a known manner, so that the cord or driving belt is just opposite the balls or, in the of two or more series of balls, just opposite the series of balls taking up the radial pressure.

surrounding the lower end of the said spindle, and a ball bearing comprising a series of balls, an outer track ring carried by the spindle, an inner track ring at the upper end of the said stationary sleeve, said inner track ring having a groove forthe balls, and a ball retainer for holding the balls in the said groove when the spindle, and thereby the outer track ring, is removed.

2. The combination with a substantially vertical rotary spindle, ofa stationary sleeve surrounding the lower' end of the said spindle, and a ball bearing comprising a series of balls, a whirl fast with the spindle and having a belt-engaging portion and provided with an outer track ring, an inner track ring at the upper end of the said stationary sleeve, said inner track ring having a groove for the balls, a ball retainer for holding the balls in the said groove, the belt-engaging portion of the whirl being disposed substantially in the plane of the ball bearing.

3. The improved mounting for a rotary spindle as set forth in claim 2, the outer track ring being formed integral with the whirl.

4:. The improved mounting for a rotary spindle as set forth in claim 2, the inner track ring being formed integral with the stationary sleeve.

5. The improved mounting for a rotary spindle as set forth in claim 2, the outer track ring being formed integral with the whirl and the inner track ring being formed integral with the stationary sleeve.

6. The combination with a rotary spindle, of a stationary sleeve surrounding the said spindle, and a ball bearing comprising a series of balls for taking up radial load, a second series of balls for taking up axial thrust and for supporting the spindle, an outer track ring carried by the spindle, an inner track ring at the said stationary sleeve, said inner track ring having grooves for the balls, and a ball retainer for holding the balls at the inner track ring, when the spindle, and thereby the outer track ring, is removed.

In testimony whereof I aliiX my signature.

BENGT WIKTOR FJELLMAN.

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