US2043661A - Centrifugal driving mechanism - Google Patents

Centrifugal driving mechanism Download PDF

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US2043661A
US2043661A US739233A US73923334A US2043661A US 2043661 A US2043661 A US 2043661A US 739233 A US739233 A US 739233A US 73923334 A US73923334 A US 73923334A US 2043661 A US2043661 A US 2043661A
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shaft
drive shaft
supported
tubular
supporting
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Andrew F Howe
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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
    • F16H37/00—Combinations of mechanical gearings, not provided for in groups F16H1/00 - F16H35/00
    • F16H37/02—Combinations of mechanical gearings, not provided for in groups F16H1/00 - F16H35/00 comprising essentially only toothed or friction gearings
    • F16H37/06—Combinations of mechanical gearings, not provided for in groups F16H1/00 - F16H35/00 comprising essentially only toothed or friction gearings with a plurality of driving or driven shafts; with arrangements for dividing torque between two or more intermediate shafts
    • F16H37/08—Combinations of mechanical gearings, not provided for in groups F16H1/00 - F16H35/00 comprising essentially only toothed or friction gearings with a plurality of driving or driven shafts; with arrangements for dividing torque between two or more intermediate shafts with differential gearing
    • F16H37/0806—Combinations of mechanical gearings, not provided for in groups F16H1/00 - F16H35/00 comprising essentially only toothed or friction gearings with a plurality of driving or driven shafts; with arrangements for dividing torque between two or more intermediate shafts with differential gearing with a plurality of driving or driven shafts
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B04—CENTRIFUGAL APPARATUS OR MACHINES FOR CARRYING-OUT PHYSICAL OR CHEMICAL PROCESSES
    • B04B—CENTRIFUGES
    • B04B3/00—Centrifuges with rotary bowls in which solid particles or bodies become separated by centrifugal force and simultaneous sifting or filtering
    • B04B3/04—Centrifuges with rotary bowls in which solid particles or bodies become separated by centrifugal force and simultaneous sifting or filtering discharging solid particles from the bowl by a conveying screw coaxial with the bowl axis and rotating relatively to the bowl

Definitions

  • This invention relates to centrifugal driving mechanism, and has special reference to a driving mechanism for use in centrifugal driers.
  • Objects of the invention are to provide mproved mechanism for differentially rotating the screen and the distributing cone of a centrifugal drier at selected speeds; to provide means for connecting the differential driving mechanism with the screen and the distributing cone in such a way that the driving mechanism may be easily attached and detached; to provide a driving shaft supporting the differential driving mecha nism and a removable support for said shaft whereby said shaft and said differential driving mechanism may be supported in operative connection with the screen and the distributing cone and may be easily removed therefrom when desired; and to provide improved driving mechanism attaining all of the benefits and advantages of the improved driving mechanism herein disclosed, reference being made to the annexed drawings, in Which- Fig. l is a vertical sectional view of the invention assembled in operative connection with the screen and the distributing cone of a centrifugal drier.
  • Fig. 2 is an enlarged sectional view of the differential driving mechanism.
  • Fig. 3 is an enlarged sectional view of the screen and the distributing cone.
  • the shaft 1 is driven by the motor 5, the lower end of said shaft being journalled in a bearing 8 and the intermediate portion of said shaft being journalled in a bearing 9 in the bottom plate I.
  • a tubular coupling device IIJ is rigidly attached to the upper end of the shaft 1 and is provided with internal ribs I I adapted to engage in grooves I2 in the lower end of a vertical shaft I3 in axial alinement with the shaft 1.
  • the shaft I3 is attached to the distributing cone I4 of the centrifugal drier, so that said cone will be rotated at the same speed at which the shafts 1 and I3 rotate.
  • the coupling I0 is easily withdrawable from engagement with the lower end of the shaft I3 and may also easily be reengaged therewith. Accordingly, the coupling I0 does not interfere with the removal of the entire unit comprising the bottom plate I, the housing 4, theshaft 1 and all of the gearing supported by any of said 5 parts.
  • Differential gearing is mounted in connection with and is solely supported and operated by the shaft 1 for rotating the conical screen I5 of the centrifugal drier at a speed different from the l0 speed of rotation of the distributing cone I4; and, in the present instance, the screen I5 is driven at a slower rate of speed than the cone I4.
  • the shaft 1 extends through a pinion I6 in rigid connection with the bottom plate I, so 15 that said pinion cannot rotate.
  • a planetary series of gears I1 mesh with the pinion I6.
  • the gears I'I are rigidly attached to trunnions I8 supported in bearings I9 mounted in a supporting member 20 which is rigid with the shaft 'I and, 20 therefore, rotates at the same rate of speed as said shaft 1.
  • the gears I1 are supported below the supporting member 20.
  • Each trunnicn I8 has a pinion 2I rigidly attached to its upper end above the support 23, and the series of 25 pinions 2I mesh with an internal gear 22 formed in connection with a multiple gear 23.
  • the gear 23 is coaxial with the shaft 1 and is supported thereby for free and independent rotation with respect to said shaft 1.
  • the combination gear 30 member 23 includes a pinion 24 as an integral part thereof, and said pinion 24 is coaxial with the combination gear 23 and the shaft 1.
  • a planetary series of gears 25 mesh with the pinion 24 and are supported by the lower ⁇ ends 35 of trunnions 26.
  • the trunnions 26 are rotatively supported by a supporting member 21 rigid on the shaft 1, and each of said trunnions has attached to its upper end a pinion 28.
  • the upper end of the shaft 1 is journalled in a bearing 3l insertable in and withdrawable fromthe lower end of the tubular shaft 30 and supported on a 45 sleeve 32 mounted on the shaft 1 above the support 21.
  • the tubular shaft 3B may be driven at any desired speed relative to the speed of rotation of the shaft 1.
  • Ltubular shaft 30 may be rotated at the same speed 55 as the shaft 1; and, by using gears of a different ratio, the tubular shaft 3U may be rotated faster than the shaft 1; and, by using the gears of still a different ratio, the tubular shaft 39 may be rotated slower than the shaft 'I.
  • My invention embodies this complete idea of means.
  • the tubular shaft 3B is supported by and rotative in a bearing 33 supported by the stationary housing 2.
  • the upper end of the tubular shaft 30 is attached to the lower end o-f a tubular shaft 34 to the upper end of which the annular wall 35 is attached for rotation thereby.
  • the annular wall 35 is connected with the screen I5 by Webs 36 so. that said screen i5 will be rotated thereby.
  • the motor 5 may be controlled to rotate the shaft 1 at any desired speed 0f rotation and that, by using proper ratio of gearing, the screen I5 may be rotated in the same direction as the distributing cone I4 and at uniform or any selected differential speed of rotation.
  • the er1- tire motor housing including the bottom plate I of the stationary housing 2 may be removed while the shaft 'I remains journalled in the bearings 8 and S and carries with it the differential gearing excep-ting the internal gear 29 which is supported by the tubular shaft 30.
  • the gearing will be automatically and continuously lubri* cated when in operation by oil flowing through the tubes 3'!
  • the upper end of the shaft I3 is journalled in a bearing I3 mounted in and supported by the upper end of the tubular shaft 34.
  • the hub I4 of the distributing cone I4 bears against and is supported by a flange or collar 39 and such ange or collar is supported by the bearing I3 and by the upper end of the tubular shaft 34.
  • the distributing cone I4 and screen I5 may be of any appropriate form or construction, and the present invention is capable of a wide variety of uses irrespective of the mechanisms or parts to be driven thereby.
  • Mechanism of the character described comprising spaced bearings, a shaft journalled in said bearings, an additional shaft in axial alinement with said first shaft, a coupling rigid with one of said shafts and having detachable engagement with the other shaft, a member rotative by said second shaft, an additional rotary member supporting said first rotary member, gearing supported by said rst shaft for rotating said additional rotary member differentially with respect to said first member as desired, and a detachable support for said bearings whereby said first shaft and said gearing may be removed as a unit.
  • Mechanism of the character described comprising two members to be relatively rotated one about the other, a bearing supporting one of said members by the other, a shaft supporting one of said members, a drive shaft, means for rotating said first shaft by said drive shaft, differential gearing supported wholly by said drive shaft, connections operated by said differential gearing for rotating said other member differentially with respect to that member which is supported by said first shaft, and a detachable support for said drive shaft whereby said shaft and said gearing may be removed as a unit.
  • Mechanism of the character described comprising two members to be relatively rotated one about the other, a bearing supporting one of said members by the other, a shaft supporting one of said members, a drive shaft, means for rotating said first shaft by said drive shaft, differential gearing supported wholly by said drive shaft, connections operated by said differential gearing for rotating said other member differentially with respect to that member which is supported by said first shaft, and a detachable support for said drive shaft whereby said drive shaft and said differential gearing may be removed as a unit.
  • Mechanism of the character described comprising two members to be differentially rotated, a tubular shaft supporting one of said members, a shaft supporting the other one of said members and extending axially into said tubular shaft, a bearing in said tubular shaft supporting said second shaft, a drive shaft, means detachably connecting said drive shaft with said second shaft, differential gearing supported by said drive shaft, means for rotating said tubular shaft by said differential gearing, and means for supporting said drive shaft and thereby said gearing for removal orV replacement as a unit.
  • Mechanism of the character described comprising two members to be differentially rotated, a tubular shaft supporting one of said members, a shaft supporting the other one of said members and extending axially into said tubular shaft, a bearing in said tubular shaft supporting said second shaft, a drive shaft, means detachably connecting said drive shaft with said second shaft, differential gearing supported by said drive shaft, means for rotating said tubular shaft by said differential gearing, and a removable support for said drive shaft whereby said drive shaft and said differential gearing may be removed and reassembled in cooperative relation with said tubular shaft and said first shaft as a unit.
  • Mechanism of the character described comprising a rigid housing, two members to be relatively rotated, a tubular shaft supporting one of said members, a shaft supporting the other member and extending into said tubular shaft, a bearing in said tubular shaft supporting said second shaft, a drive shaft, means for rotating said second shaft by said drive shaft, differential gearing said second shaft, a drive shaft in axial alinement with said second shaft, a detachable connection for rotating said second shaft by said drive shaft, differential gearing supported by said drive shaft in said housing and operatively connected with said tubular shaft for rotating said tubular shaft differentially with respect to said second shaft, and a detachable support for said drive shaft whereby said drive shaft and said gearing may be removed as a unit.
  • Mechanism of the character described comprising two coaxial shafts supported for relative rotation, a bearing in one of said shafts supporting the other shaft, a drive shaft supported in axial alinement with one of said two coaxial shafts and detachably connected therewith, a detachable support for supporting said drive shaft, and differential gearing wholly supported by said detachable support and said drive shaft and operatively connected with the other of said two coaxial shafts.
  • Mechanism of the character described comprising two coaxial shafts supported for relative rotation, a bearing in one of said shafts supporting the other shaft, a rigid housing supporting said shafts, a drive shaft in axial alinement with one of said two coaxial shafts and operatively connected therewith, differential gearing supported by said drive shaft and said housing for rotating the other one of said two coaxial shafts differentially with respect to said drive shaft, and a detachable support for said drive shaft whereby said drive shaft and said gearing may be removed as a unit.
  • Mechanism of the character described comprising a rigid supporting housing, a tubular shaft rotatively supported by said housing, a shaft extending into said tubular shaft and supported thereby for relative rotation, spaced bearings in said housing, a drive shaft rotativelyjournalled in said bearings in axial alinement with said second shaft and operatively connected therewith, differential gearing wholly supported by said drive shaft and operatively connected with said tubular shaft for rotating said tubular shaft differentially with respect to said drive shaft and said second shaft, a motor between said bearings for rotating said drive shaft, and a detachable support for said drive shaft and said motor whereby said shaft and said motor and said gearing may be removed as a unit.
  • Mechanism of the character described comprising a rigid housing, spaced bearings supported by said housing, a tubular shaft rotatively supported by said bearings, a shaft extending into said tubular shaft for relative rotation, a bearing in said tubular shaft supporting said second shaft, a detachable support attached to said housing, a drive shaft rotatively journalled in said detachable support and supported thereby in axial alinement with said second shaft, a detachable coupling for rotating said second shaft by said drive shaft and at the same rate of speed, and differential gearing wholly supported by said detachable support and said drive shaft in said housing and operatively connected with said tubular shaft for rotating said tubular shaft differentially with respect to said drive shaft and said second shaft.
  • Mechanism of the character described comprising a tubular shaft, a shaft extending into said tubular shaft for relative rotation, a bearing in said tubular shaft supporting said second shaft, a drive shaft coaxial with said tubular shaft and in axial alinement with said second shaft, a coupling having detachable connection with one of said two last named shafts for rotating said second shaft by said drive shaft and at the same rate of speed, a bearing in said tubular shaft for one end of said drive shaft, means on said drive shaft for supporting said bearing, differential gearing supported by said drive shaft for rotating said tubular shaft differentially with respect to said drive shaft and said second shaft, a support for supporting said drive shaft and said differential gearing in cooperative relation with respect to said second shaft and said tubular shaft, and detachable means holding said support whereby said support and said drive shaft and said gearing may be removed as a unit.
  • Mechanism of the character described comprising a tubular shaft, a shaft extending into said tubular shaft for relative rotation, a bearing in said tubular shaft supporting said second shaft, a drive shaft coaxial with said tubular shaft and in axial alinement with said second shaft, a coupling having detachable connection with one of said two last named shafts for rotating said second shaft by said drive shaft and at the same rate of speed, a bearing in said tubular shaft for one end of said drive shaft, means on said drive shaft for supporting said bearing, differential gearing supported by said drive shaft for rotating said tubular shaft differentially with respect to said drive shaft and said second shaft, a support for supporting said drive shaft and said differential gearing in cooperative relation with respect to said second shaft and said tubular shaft whereby said drive shaft and said gearing may be removed as a unit, and means supported and operated by said gearing for applying lubricant to said gearing as an incident to the operation thereof.
  • Mechanism of the character described comprising a tubular shaft, spaced bearings in said tubular shaft, a shaft journalled in one of said bearings and extending into said tubular shaft for relative rotation, a removable support, a drive shaft supported by said removable support and. by one of said bearings coaxially with respect to said tubular shaft and in axial alinement with said second shaft, a coupling rigid with said tubular shaft and having detachable engagement with said second shaft for rotating said second shaft by said drive shaft, a gear member attached to said tubular shaft and operatively connected with said gearing for rotating said tubular shaft, and means for supporting said drive shaft and said differential gearing for removal and replacement as a unit.

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Description

June9, 1936. A. F. HowE 2,043,661
CENTRFUGAL DRIVING MECHANISM Filed Aug. 1o, 1934 :s sheets-sheet 2 June 9, 1936., A, F, HOW'E 2,043,661
CENTRIFUGAL DRIVING MECHANISM lPatented June 9, 1936 UNITED STATES PATENT CFFICE 14 Claims.
This invention relates to centrifugal driving mechanism, and has special reference to a driving mechanism for use in centrifugal driers.
Objects of the invention are to provide mproved mechanism for differentially rotating the screen and the distributing cone of a centrifugal drier at selected speeds; to provide means for connecting the differential driving mechanism with the screen and the distributing cone in such a way that the driving mechanism may be easily attached and detached; to provide a driving shaft supporting the differential driving mecha nism and a removable support for said shaft whereby said shaft and said differential driving mechanism may be supported in operative connection with the screen and the distributing cone and may be easily removed therefrom when desired; and to provide improved driving mechanism attaining all of the benefits and advantages of the improved driving mechanism herein disclosed, reference being made to the annexed drawings, in Which- Fig. l is a vertical sectional view of the invention assembled in operative connection with the screen and the distributing cone of a centrifugal drier.
Fig. 2 is an enlarged sectional view of the differential driving mechanism.
Fig. 3 is an enlarged sectional view of the screen and the distributing cone.
40 a stationary support that may be removed as a unit simply by removing the screws 3.
The shaft 1 is driven by the motor 5, the lower end of said shaft being journalled in a bearing 8 and the intermediate portion of said shaft being journalled in a bearing 9 in the bottom plate I. A tubular coupling device IIJ is rigidly attached to the upper end of the shaft 1 and is provided with internal ribs I I adapted to engage in grooves I2 in the lower end of a vertical shaft I3 in axial alinement with the shaft 1. The shaft I3 is attached to the distributing cone I4 of the centrifugal drier, so that said cone will be rotated at the same speed at which the shafts 1 and I3 rotate. The coupling I0 is easily withdrawable from engagement with the lower end of the shaft I3 and may also easily be reengaged therewith. Accordingly, the coupling I0 does not interfere with the removal of the entire unit comprising the bottom plate I, the housing 4, theshaft 1 and all of the gearing supported by any of said 5 parts.
Differential gearing is mounted in connection with and is solely supported and operated by the shaft 1 for rotating the conical screen I5 of the centrifugal drier at a speed different from the l0 speed of rotation of the distributing cone I4; and, in the present instance, the screen I5 is driven at a slower rate of speed than the cone I4.
The shaft 1 extends through a pinion I6 in rigid connection with the bottom plate I, so 15 that said pinion cannot rotate. A planetary series of gears I1 mesh with the pinion I6. The gears I'I are rigidly attached to trunnions I8 supported in bearings I9 mounted in a supporting member 20 which is rigid with the shaft 'I and, 20 therefore, rotates at the same rate of speed as said shaft 1. The gears I1 are supported below the supporting member 20. Each trunnicn I8 has a pinion 2I rigidly attached to its upper end above the support 23, and the series of 25 pinions 2I mesh with an internal gear 22 formed in connection with a multiple gear 23. The gear 23 is coaxial with the shaft 1 and is supported thereby for free and independent rotation with respect to said shaft 1. The combination gear 30 member 23 includes a pinion 24 as an integral part thereof, and said pinion 24 is coaxial with the combination gear 23 and the shaft 1.
A planetary series of gears 25 mesh with the pinion 24 and are supported by the lower` ends 35 of trunnions 26. The trunnions 26 are rotatively supported by a supporting member 21 rigid on the shaft 1, and each of said trunnions has attached to its upper end a pinion 28.
The pinions 28, which are rigid with the re- 40 spective trunnions 26, mesh with an internal gear 29 attached to a tubular shaft 3i). The upper end of the shaft 1 is journalled in a bearing 3l insertable in and withdrawable fromthe lower end of the tubular shaft 30 and supported on a 45 sleeve 32 mounted on the shaft 1 above the support 21. When the screws 3 are removed the shaft 1 and the differential gearing supported thereby may be removed as a unit with the support comprising the parts I and 4.
Accordingly, by using gearing of the desired ratio, the tubular shaft 3B may be driven at any desired speed relative to the speed of rotation of the shaft 1. By using gears of one ratio, the
Ltubular shaft 30 may be rotated at the same speed 55 as the shaft 1; and, by using gears of a different ratio, the tubular shaft 3U may be rotated faster than the shaft 1; and, by using the gears of still a different ratio, the tubular shaft 39 may be rotated slower than the shaft 'I. My invention embodies this complete idea of means.
The tubular shaft 3B is supported by and rotative in a bearing 33 supported by the stationary housing 2. The upper end of the tubular shaft 30 is attached to the lower end o-f a tubular shaft 34 to the upper end of which the annular wall 35 is attached for rotation thereby. The annular wall 35 is connected with the screen I5 by Webs 36 so. that said screen i5 will be rotated thereby.
It is now clear that the motor 5 may be controlled to rotate the shaft 1 at any desired speed 0f rotation and that, by using proper ratio of gearing, the screen I5 may be rotated in the same direction as the distributing cone I4 and at uniform or any selected differential speed of rotation. Merely by removing the screws 3, the er1- tire motor housing including the bottom plate I of the stationary housing 2 may be removed while the shaft 'I remains journalled in the bearings 8 and S and carries with it the differential gearing excep-ting the internal gear 29 which is supported by the tubular shaft 30. The gearing will be automatically and continuously lubri* cated when in operation by oil flowing through the tubes 3'! supported vertically by the supports 2G and 21 between the gears I'I and having forwardly extended open portions 38 on their lower ends which operate in oil contained in the housing 2. The planetary rotation of the tubes 37 about the axis of the shaft 1 with the open end portions 38 of said tubes operating in the oil will cause continuous flow of oil through the respective tubes above the support 21. Discharge of the oil from the open upper ends of the tubes 37 will permit the oil to flow onto and lubricate all of the gearing and the bearings therefor.
' As clearly shown the upper end of the shaft I3 is journalled in a bearing I3 mounted in and supported by the upper end of the tubular shaft 34. The hub I4 of the distributing cone I4 bears against and is supported by a flange or collar 39 and such ange or collar is supported by the bearing I3 and by the upper end of the tubular shaft 34. These elements constitute an embodiment of means for supporting the shaft I3 and thereby the distributing cone I4 by the shaft 34 and the bearing I3', even when the drive shaft 'I and the differential gearing mounted thereon are removed.
It should now be apparent that this invention attains all of its intended objects and purposes efficiently and satisfactorily and constitutes a highly convenient mechanism for its intended uses. The distributing cone I4 and screen I5 may be of any appropriate form or construction, and the present invention is capable of a wide variety of uses irrespective of the mechanisms or parts to be driven thereby.
I claim:
1. Mechanism of the character described comprising spaced bearings, a shaft journalled in said bearings, an additional shaft in axial alinement with said first shaft, a coupling rigid with one of said shafts and having detachable engagement with the other shaft, a member rotative by said second shaft, an additional rotary member supporting said first rotary member, gearing supported by said rst shaft for rotating said additional rotary member differentially with respect to said first member as desired, and a detachable support for said bearings whereby said first shaft and said gearing may be removed as a unit.
2.*Mechanism of the character described comprising two members to be relatively rotated one about the other, a bearing supporting one of said members by the other, a shaft supporting one of said members, a drive shaft, means for rotating said first shaft by said drive shaft, differential gearing supported wholly by said drive shaft, connections operated by said differential gearing for rotating said other member differentially with respect to that member which is supported by said first shaft, and a detachable support for said drive shaft whereby said shaft and said gearing may be removed as a unit.
3. Mechanism of the character described comprising two members to be relatively rotated one about the other, a bearing supporting one of said members by the other, a shaft supporting one of said members, a drive shaft, means for rotating said first shaft by said drive shaft, differential gearing supported wholly by said drive shaft, connections operated by said differential gearing for rotating said other member differentially with respect to that member which is supported by said first shaft, and a detachable support for said drive shaft whereby said drive shaft and said differential gearing may be removed as a unit.
4. Mechanism of the character described comprising two members to be differentially rotated, a tubular shaft supporting one of said members, a shaft supporting the other one of said members and extending axially into said tubular shaft, a bearing in said tubular shaft supporting said second shaft, a drive shaft, means detachably connecting said drive shaft with said second shaft, differential gearing supported by said drive shaft, means for rotating said tubular shaft by said differential gearing, and means for supporting said drive shaft and thereby said gearing for removal orV replacement as a unit.
5. Mechanism of the character described comprising two members to be differentially rotated, a tubular shaft supporting one of said members, a shaft supporting the other one of said members and extending axially into said tubular shaft, a bearing in said tubular shaft supporting said second shaft, a drive shaft, means detachably connecting said drive shaft with said second shaft, differential gearing supported by said drive shaft, means for rotating said tubular shaft by said differential gearing, and a removable support for said drive shaft whereby said drive shaft and said differential gearing may be removed and reassembled in cooperative relation with said tubular shaft and said first shaft as a unit.
6. Mechanism of the character described comprising a rigid housing, two members to be relatively rotated, a tubular shaft supporting one of said members, a shaft supporting the other member and extending into said tubular shaft, a bearing in said tubular shaft supporting said second shaft, a drive shaft, means for rotating said second shaft by said drive shaft, differential gearing said second shaft, a drive shaft in axial alinement with said second shaft, a detachable connection for rotating said second shaft by said drive shaft, differential gearing supported by said drive shaft in said housing and operatively connected with said tubular shaft for rotating said tubular shaft differentially with respect to said second shaft, and a detachable support for said drive shaft whereby said drive shaft and said gearing may be removed as a unit.
8. Mechanism of the character described comprising two coaxial shafts supported for relative rotation, a bearing in one of said shafts supporting the other shaft, a drive shaft supported in axial alinement with one of said two coaxial shafts and detachably connected therewith, a detachable support for supporting said drive shaft, and differential gearing wholly supported by said detachable support and said drive shaft and operatively connected with the other of said two coaxial shafts.
9. Mechanism of the character described comprising two coaxial shafts supported for relative rotation, a bearing in one of said shafts supporting the other shaft, a rigid housing supporting said shafts, a drive shaft in axial alinement with one of said two coaxial shafts and operatively connected therewith, differential gearing supported by said drive shaft and said housing for rotating the other one of said two coaxial shafts differentially with respect to said drive shaft, and a detachable support for said drive shaft whereby said drive shaft and said gearing may be removed as a unit.
10. Mechanism of the character described comprising a rigid supporting housing, a tubular shaft rotatively supported by said housing, a shaft extending into said tubular shaft and supported thereby for relative rotation, spaced bearings in said housing, a drive shaft rotativelyjournalled in said bearings in axial alinement with said second shaft and operatively connected therewith, differential gearing wholly supported by said drive shaft and operatively connected with said tubular shaft for rotating said tubular shaft differentially with respect to said drive shaft and said second shaft, a motor between said bearings for rotating said drive shaft, and a detachable support for said drive shaft and said motor whereby said shaft and said motor and said gearing may be removed as a unit.
11. Mechanism of the character described comprising a rigid housing, spaced bearings supported by said housing, a tubular shaft rotatively supported by said bearings, a shaft extending into said tubular shaft for relative rotation, a bearing in said tubular shaft supporting said second shaft, a detachable support attached to said housing, a drive shaft rotatively journalled in said detachable support and supported thereby in axial alinement with said second shaft, a detachable coupling for rotating said second shaft by said drive shaft and at the same rate of speed, and differential gearing wholly supported by said detachable support and said drive shaft in said housing and operatively connected with said tubular shaft for rotating said tubular shaft differentially with respect to said drive shaft and said second shaft.
12. Mechanism of the character described comprising a tubular shaft, a shaft extending into said tubular shaft for relative rotation, a bearing in said tubular shaft supporting said second shaft, a drive shaft coaxial with said tubular shaft and in axial alinement with said second shaft, a coupling having detachable connection with one of said two last named shafts for rotating said second shaft by said drive shaft and at the same rate of speed, a bearing in said tubular shaft for one end of said drive shaft, means on said drive shaft for supporting said bearing, differential gearing supported by said drive shaft for rotating said tubular shaft differentially with respect to said drive shaft and said second shaft, a support for supporting said drive shaft and said differential gearing in cooperative relation with respect to said second shaft and said tubular shaft, and detachable means holding said support whereby said support and said drive shaft and said gearing may be removed as a unit.
13. Mechanism of the character described comprising a tubular shaft, a shaft extending into said tubular shaft for relative rotation, a bearing in said tubular shaft supporting said second shaft, a drive shaft coaxial with said tubular shaft and in axial alinement with said second shaft, a coupling having detachable connection with one of said two last named shafts for rotating said second shaft by said drive shaft and at the same rate of speed, a bearing in said tubular shaft for one end of said drive shaft, means on said drive shaft for supporting said bearing, differential gearing supported by said drive shaft for rotating said tubular shaft differentially with respect to said drive shaft and said second shaft, a support for supporting said drive shaft and said differential gearing in cooperative relation with respect to said second shaft and said tubular shaft whereby said drive shaft and said gearing may be removed as a unit, and means supported and operated by said gearing for applying lubricant to said gearing as an incident to the operation thereof.
14. Mechanism of the character described comprising a tubular shaft, spaced bearings in said tubular shaft, a shaft journalled in one of said bearings and extending into said tubular shaft for relative rotation, a removable support, a drive shaft supported by said removable support and. by one of said bearings coaxially with respect to said tubular shaft and in axial alinement with said second shaft, a coupling rigid with said tubular shaft and having detachable engagement with said second shaft for rotating said second shaft by said drive shaft, a gear member attached to said tubular shaft and operatively connected with said gearing for rotating said tubular shaft, and means for supporting said drive shaft and said differential gearing for removal and replacement as a unit.
ANDREW F. HOWE.
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Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2458706A (en) * 1945-05-14 1949-01-11 Centrifugal & Mechanical Ind I Differential gearing for centrifugal machines
US2511585A (en) * 1946-01-10 1950-06-13 Centrifugal & Mechanical Ind I Centrifuge
US3247972A (en) * 1961-12-26 1966-04-26 Dorr Oliver Inc Centrifugal screening apparatus
US3402822A (en) * 1966-08-17 1968-09-24 Dorr Oliver Inc Screening centrifuges
US6387032B1 (en) * 1998-02-17 2002-05-14 Westfalia Separator Ag Screw-type solid bowl centrifuge with multistage planetary gear train
US20100144483A1 (en) * 2009-03-19 2010-06-10 Nirmal Kumar Aiyakkannu Yaw assembly for a rotatable system and method of assembling the same

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2458706A (en) * 1945-05-14 1949-01-11 Centrifugal & Mechanical Ind I Differential gearing for centrifugal machines
US2511585A (en) * 1946-01-10 1950-06-13 Centrifugal & Mechanical Ind I Centrifuge
US3247972A (en) * 1961-12-26 1966-04-26 Dorr Oliver Inc Centrifugal screening apparatus
US3402822A (en) * 1966-08-17 1968-09-24 Dorr Oliver Inc Screening centrifuges
US6387032B1 (en) * 1998-02-17 2002-05-14 Westfalia Separator Ag Screw-type solid bowl centrifuge with multistage planetary gear train
US20100144483A1 (en) * 2009-03-19 2010-06-10 Nirmal Kumar Aiyakkannu Yaw assembly for a rotatable system and method of assembling the same
US7828686B2 (en) * 2009-03-19 2010-11-09 General Electric Company Yaw assembly for a rotatable system and method of assembling the same

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