GB848861A - Improvements in or relating to tractor change-speed transmissions - Google Patents

Improvements in or relating to tractor change-speed transmissions

Info

Publication number
GB848861A
GB848861A GB20338/58A GB2033858A GB848861A GB 848861 A GB848861 A GB 848861A GB 20338/58 A GB20338/58 A GB 20338/58A GB 2033858 A GB2033858 A GB 2033858A GB 848861 A GB848861 A GB 848861A
Authority
GB
United Kingdom
Prior art keywords
gear
shaft
speed
gears
change
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
Application number
GB20338/58A
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of GB848861A publication Critical patent/GB848861A/en
Expired legal-status Critical Current

Links

Classifications

    • 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
    • F16H3/00—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion
    • F16H3/02—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion without gears having orbital motion
    • F16H3/20—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion without gears having orbital motion exclusively or essentially using gears that can be moved out of gear
    • F16H3/22—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion without gears having orbital motion exclusively or essentially using gears that can be moved out of gear with gears shiftable only axially
    • 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
    • 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
    • F16H2702/00—Combinations of two or more transmissions
    • F16H2702/02—Mechanical transmissions with planetary gearing combined with one or more other mechanical transmissions
    • F16H2702/04—Combinations of a speed-change mechanism without planetary gearing with a differential for driving a vehicle drive axle

Abstract

848,861. Change-speed gear. PORSCHE, F. June 25, 1958 [July 17, 1957], No. 20338/58. Class 80 (2). [Also in Group XXXI] A tractor change-speed mechanism comprises a torque amplifier arranged selectively to provide direct and indirect drive to a change-speed mechanism, means for providing slow or creeping speed, a mowing drive and a power take-off shaft arranged to be selectively driven at a speed proportional to engine speed or at a speed proportional to the ground speed of the tractor and is characterized in that a set of coaxial gears is rotatably mounted on an axial extension of the output shaft of the change-speed mechanism and the slow or creeping speed, the mowing drive and the indirect drive to the change-speed mechanism are derived from the coaxial gears. As shown, the input shaft 1, connected to an internal-combustion engine through a clutch mechanism (not shown), is provided with a gear 34 meshing with the gear-set 30 comprising, in a unitary structure, the gears 31, 32, 33. The gear 31 drives a gear 35 from which, through a belt-and-pulley drive, the mowing drive is taken. A torque amplifier gear-wheel 36, which is slidably mounted upon splines on a countershaft 14 rotatably mounted upon the shaft 1, may be brought to mesh with gear 33 to provide a reduction gear through which the shaft 14 is driven, the shaft 14 driving gears 11, 12 and 13 which may be selectively brought to mesh with the gears 7, 8 and 9, respectively, providing a change-speed gear arrangement driving a shaft 6 provided at its end with a bevel gear connection to a bevel gear 27 through which the tractor wheels are driven. The gear 36 is also provided with internal teeth 37 which may be brought to mesh with corresponding teeth upon the gear 34 providing a direct drive to the shaft 14. The creep speed may be taken from the gear 32 through a gear 41 slidable upon splines upon a shaft 39 in response to movement of a lever 42, and the gear 9. A gear-wheel 10 may be connected to a reversing-gear. Coaxial with the shafts 1 and 14 is a shaft 17 which drives, through gears 20 and 22, an output shaft 21 and, through bevels 20<SP>1</SP> and 23, a friction disc 24 and the transverse shaft upon which it is mounted. The shaft 17 may be driven either from the shaft 6 through gears 26 and 25 in which case the output shaft is synchronous with the driving-speed or from shaft 1 at constant speed by moving the member 25 so that it drivingly connects splines upon the shaft 1 with splines upon the shaft 17. A gear shift lever 16 is provided.
GB20338/58A 1957-07-17 1958-06-25 Improvements in or relating to tractor change-speed transmissions Expired GB848861A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE848861X 1957-07-17

Publications (1)

Publication Number Publication Date
GB848861A true GB848861A (en) 1960-09-21

Family

ID=6775716

Family Applications (1)

Application Number Title Priority Date Filing Date
GB20338/58A Expired GB848861A (en) 1957-07-17 1958-06-25 Improvements in or relating to tractor change-speed transmissions

Country Status (1)

Country Link
GB (1) GB848861A (en)

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