US1764849A - Transmission - Google Patents

Description

June 17, 1930. A T. J. ocoNNoR 1,764,849

Inventar fifa-wwf Mmm Amira@- June 17, 1930. 1'. J. ocoNNoR 'lI ANSMISSION z sheets-sheet 2 Filed Sept. 14, 1927 Patented ,time 17, 193e UNITED Isra THOMAS J'. QCONNOB, OF GHABLSTON, WEST VIRGINIA TRANSMISSION l Application filedl September 14, 1927. Serial No. 219,464.

The present invention appertains to a variable speed and power transmission apparatus in the form of a planetary-centrifugal fluid driving mechanism for transmitting power from a drive shaft to a driven shaft.

The apparatus is of the type embodying a compound planet gear or multiple compound planet gears actuated and xed to the drive shaft and a centrifugal fluid impeller also actuated and fixed to the drive shaft, the iluid impeller being constructed so as to convey directional pressure to an outer drum which is connected to a pivot pinion that is free to rotate about the driven shaft, pivot pinion meshes with the planet gearv and the planet gear meshes with a gear fixed to the driven shaft.

The princi al object and novelty of the invention resi es in the fact that the drive gears are always in mesh, the iuid receiver allowing changes of speed by infinite Steps as greater or less power is required, as the load varies on the driven shaft and control means for receiving the drivin power from the drive shaft to the driven s aft, the same control being adapted to hold the connecting parts in fixed osition fordirect driv A still furt er important object of the invention resides in the provision of a transmission apparatus of this nature which is comparatively simple in its construction,.is automatic in taking heavy loads with reduced speed, has its parts compactl and conl veniently arranged,has cushlon e ect between drive anddriven shafts reducin shock of sudden loads, and iis thoroughly e cient and reliable in its operation.

Withthe above and numerous other objects in view as will appear as the description proceeds, the invention resides in certain novel features of construction, and in the combination and arranglement of 4parts as will be hereinafter more lly described and claimed.

yIn the drawing z'- Figure 1 is a fragmentary longitudinal y 5 Figure 5 is another sectlonal elevation thereof taken at right angles to that shown in Figure 4, and,

Figure 6 is a. diagrammatic sketch showin the multiple compound gears and genera o scheme.

Referring to the drawing in detail, it will be seen that the letter A denotes an impeller somewhat similar to what is used in centrifugal pumps. This impeller is cast in one with a series of channels 5 with the bla es 6 connecting the'side walls, these. blades being curved backward from tion. The liquid enters near the shaft through entrances 7 and due of the blades and the rotation the liquid is forced under pressure atl the outer edge. This impeller is keyed or xed to a drive shaft 8. The letter B denotes a disk with a bearing on the drive shaft and at its outer edge for tting in slots 11 in the 'drum 13. The drum is provided with a" sawtooth-like internal face 12 against which the fluid from the impeller A. The teeth 10- t in the slots naled on the drive shaft and having an extension 14 xed as at 15 to a plate 16 journaled on the driven shaft and having a pinion rtion 17 which meshes with a. gear 18 that has a pinion 1:portion 19. The naled on e shaft'20 su ported by a bracket 21 in and to which the drive shaft 8 is fixed and driven shaft 22 is journaled. The gears 18 19, coupled to the drive shaft, are to be oon- A sidered the driving elements driven directly Il view w ieee 5 the direction of rotal 'to the curvature 70' iprovided with teeth 10 75 11 of thdrum 1e jourso gear'18 is jour- 85 by the drive shaft 8. A gear 23 is keyed or otherwise xed to the driven shaft and meshes with the pinion 19. The disk B has a collar 24 operable by a suitable fork 25 'and is normally urged in one direction by means of a spring 26 for varying the space between part B and part 13 the teeth 10 m the slots 11 being always in mesh.

The operation of the transmission is as follows. The drive shaft 8 drives the impeller A and parts 21 and 20 in a positive direction. The resistance of the driven shaft 22 and the driven shaft gear 23 (under load) l to rotation, causes the plate 16, drum 13 and 14 and the disk B through a ratio of multiple compound gears 17, 18 and 19 to rotate in a reverse direction. The pressure of the fluid from the impeller A to thedrum 13 and 14 and plate 16, causes the pinion 1 7 to be checked gradually from itsreverse d1- rection thereby imparting driving force in a ositive direction to the gear 23 and the drive shaft 22. This occurs through the gears 19, 18 and 17 as a Variable pivot Ior the positive driving force of 8, 21 and 20. The planet bracket 21 functions as a positive (fixed) driving force and the receiver B through the parts above mentioned regulates the amount of force conveyed to the gear 23 fixed to the driven shaft 22, by regulation of the control fork 25. As the pinion 17 is checked in its negative or reverse rotation to a stopping point, then in a positive (forward) direction, the. driven shaft approaches the speed of the drive shaft as the pivot pinion 17 approaches the speed of the drive shaft. The fork 25 functions to' space the disk B from the art 13 allowing a space for the escape of gui under pressure from the impeller A, thereby allowing the drum 13 and 14, diskB plate 16 and pivot pinion 17 to slip to negative or reverse direction so as to release the driving y' force on the gear 23 which is fixed to the driven shaft 22. The rotationof the drive shaft is spent in rotating the pivot pinion 17 and parts B, 13, 14, 15 and 16 in a negative direction and no driving force is applied to the driven shaft until the fork 25 allows the spring 26 to close the disk B in respect to,

the part 13 and the impeller builds up a pressure again, which requires but a few' revolutions. The` port 25 can also be regulated to allow the spring 26 to force the disk B againstv the adjacent face of the impeller A thus causing a friction contact between the drive shaft 8 and the driven shaft 22 making a direct drive when desired, eliminating the fluid function and wear of the gears.

It is thought that the construction, operation, and advanta es of the `invention may be now understoo without a more detailed description thereof. In the diagram shown in Figure 6, I have shown a multiplication of the gearing which may be used if desired. The present embodiments of the invention `have been disclosed in detail merely by way of example since in actual practice they attain the features of advantage enumerated as desirable in the statement of the invention and the above description. It is apparent that in certain applications ofthis mechanism, reverse and forward rotation of the driven shaftwill be required, in which case a reversing gear f some standard design would be constructed in the driven shaft. It will be apparent that changes in the details of construction, and in the combination and arrangement of parts may be resorted to withoutdeparting from the spirit or scope of the invention as hereinafter claimed or sacrificing anlyI of its advantages.

aving thus described my invention, what I claimas new is 1. In a device of the character described comprising a casing with a quantity -of fluid therein, a drive and driven shaft extending into the casing, an impeller fixed to the drive shaft, a drum including a gear journaled for rotation on the drive and driven shafts, a gear fixed to the driven shaft, a bracket fixed tothe drive shaft, a lanet pin supported on the bracket and aving its axis concentric with the driven shaft, planetary gears journalled on the planet pm meshing with the first and second mentioned gears, and means slidably supported on the drive shaft and detachably `engageable with the drum for locking the drive and driven shaftV together thereby causing a direct drive.

2. In a device of the class described comprising acasing with a quantity of fluid therein, a drive and driven shaft extending into-the casing, an impeller fixed to the drive shaft within the Casin a drum including a gear journalled on t e drive and driven shafts independent of the impeller, a gear fixed to the driven shafta bracket fixed to the drive shaft, a planet pin supported on the bracket and having its axis concentric to the driven shaft, planetary gears journalled on the planet pin meshing with the first and second mentioned gears, the fluid force from the impeller resilientl effecting the power transmitted through t e gearing aforementioned and the drum being adapted to alter the fluid force received from the impeller for sensitive regulationy of the driven shaft when the drive shaft is in motion.

3. In a device of the class described comi driven shaft, planetary gears journalled on the planet pin meshing with the first and' second mentioned gears, the Huid force from the impeller resilientl efecting the power transmitted through the gearing aforementioned and the drum being adapted to alter theluid force received from the impeller for sensitive re ation of the driven shaft when the drive s 'aft is in motion, said impeller being partly immersed in uid and primed upon the initial starting of the drive shaft.

In testimony whereof I aix m si nature.

' THOMAS J. O ON OR.

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