WO1983002307A1 - Agencement accessoire de transmission - Google Patents

Agencement accessoire de transmission Download PDF

Info

Publication number
WO1983002307A1
WO1983002307A1 PCT/US1981/001746 US8101746W WO8302307A1 WO 1983002307 A1 WO1983002307 A1 WO 1983002307A1 US 8101746 W US8101746 W US 8101746W WO 8302307 A1 WO8302307 A1 WO 8302307A1
Authority
WO
WIPO (PCT)
Prior art keywords
shaft
members
rotary
drive arrangement
secured
Prior art date
Application number
PCT/US1981/001746
Other languages
English (en)
Inventor
Corporation Towmotor
Original Assignee
Reid, Paul, A.
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 Reid, Paul, A. filed Critical Reid, Paul, A.
Priority to JP82500612A priority Critical patent/JPS58502158A/ja
Priority to EP19820900585 priority patent/EP0097156A4/fr
Priority to PCT/US1981/001746 priority patent/WO1983002307A1/fr
Publication of WO1983002307A1 publication Critical patent/WO1983002307A1/fr

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
    • F16H55/00—Elements with teeth or friction surfaces for conveying motion; Worms, pulleys or sheaves for gearing mechanisms
    • F16H55/02—Toothed members; Worms
    • F16H55/30—Chain-wheels
    • 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
    • F16H7/00—Gearings for conveying rotary motion by endless flexible members
    • F16H7/06—Gearings for conveying rotary motion by endless flexible members with chains

Definitions

  • This invention relates generally to a drive arrangement and more particularly to a power take-off system for driving engine accessories and the like.
  • the gears are suitably designed to provide the desired torque and horsepower to the pumps and to minimize the standout dimension of the integrated drive system, i.e., the distances separating the axes of rotation of the various gears from each other and from the rotational axis of the crankshaft. Since the various gears must necessarily mesh at their toothed peripheries, drive systems of this type cannot be packaged as compactly as desired.
  • chain and belt drive systems have also been used for this purpose, they tend to provide even larger standout dimensions.
  • the axes of rotation of the various pulleys and sprockets of these systems are disposed at even greater distances relative to each other.
  • some conventional drive systems of the above type may tend to increase shaft and bearing loads and create related
  • the present invention is directed to overcoming one or more of the problems as set forth above.
  • a drive arrangement comprises a rotary first shaft, at least two rotary first members secured on the first shaft, a rotary second shaft disposed in parallel relationship relative to the first shaft, at least one rotary second member secured on the second shaft and extending into nested relationship between the first members, and endless flexible drive means for transmitting rotary motion between the first and second members.
  • the first shaft is connected to the crankshaft of an engine and the second shaft is connected to an accessory of the engine, such as a pump thereof.
  • Figure 1 schematically illustrates a drive arrangement embodiment of the present invention interconnected between an engine and an accessory of the engine
  • Figure 2 is a side elevational view of the drive arrangement, taken in the direction of arrows II- II in Figure 1;
  • Figure 3 is a side elevational view illustrating a conventional chain and sprocket drive system.
  • FIG. 1 illustrates a drive arrangement 10 interconnected between an internal combustion engine 11 and an engine accessory 12, such as a fan, implement, lube, or scavenge pump.
  • Drive arrangement 10 provides a power take-off from a rotary output or crankshaft 13 of the engine for driving, the pump at the desired torque and horsepower levels. It will be understood by those skilled in the art that the drive arrangement has other power take-off applications, such as a final wheel drive for driving the wheels of a tractor or other land vehicle.
  • drive arrangement 10 comprises a rotary first shaft 14, suitably connected to the crankshaft through a standard coupling.
  • the shaft has at least two and preferably three rotary first members 15, 16, and 17 secured in longitudinally spaced relationship thereon.
  • shaft 14 is further connected in a suitable manner to an input shaft of a conventional transmission 18.
  • a rotary second shaft 19 has its rotational axis disposed in parallel relationship relative to the rotational axis of shaft 14 and has at least one and preferably two rotary members 20 and 21 secured thereon.
  • Rotary members 20 and 21 extend radially outwardly from shaft 19 into overlapping or nested
  • OMPI relationship between a respective pair of first members 15-17 The rotary members preferably nest as compactly as physically possible without interference and with consideration being given to various design parameters, such as the desired drive ratio.
  • An endless flexible drive means 22 surrounds the rotary members to transmit rotary motion from rotary members 15-17 to rotary members 20 and 21.
  • each of the rotary members constitutes a drive sprocket and drive means 22 constitutes a common chain, either of the block, roller, or silient type.
  • drive means 22 constitutes a common chain, either of the block, roller, or silient type.
  • a separate chain may be employed with each sprocket with the parallel single chains being suitably assembled on common pins to all strands to provide a relatively high horsepower capacity.
  • the Axial dimension required for the drive arrangement (the axial distance along shafts 14, 19) can be minimized by using an inverted-tooth "silent" chain, such as the Morse "Hy-Vo" or its equivalent.
  • This type of chain renders it unnecessary to space the overlapping sprockets as far apart as the chains of Figure 1 which require such spacing to clear side plates employed therewith.
  • the inverted-tooth "silent" chain enables the sprockets associated therewith to be placed as close together as manufacturing and assembly tolerances (or concern over windage losses) will permit.
  • the design parameters for the drive arrangement such as the size of the sprockets and number of teeth employed thereon, will depend on the particular application under consideration. For example, sprocket wheels with fewer than sixteen teeth may be employed for relatively low-speed applications, whereas sprocket wheels having eighteen to twenty-four teeth are normally desirable for high-speed applications.
  • first- sprockets 15- 17 and at least two second sprockets 20, 21 are preferred to avoid any bending across the width of chain 22 and any adverse loads on shafts 14, 19 and the support bearings therefor.
  • OMPI especially toothed belts of the type known in the art as "timing” belts.
  • chain drives are preferred due to their high efficiency, long service life, and zero slippage capabilities.
  • Other desired functions and design criteria for the chain drive can be found in Marks' Standard Handbook for Mechanical Engineers, Eighth Edition.
  • the unitized and modular accessory drive system may comprise an alternator, air conditioning compressor, and pumps for the fan, implement, transmission, and scavenge systems.
  • the unit is isolation-mounted on the right side of the vehicle's main frame, below the operator's compartment, and powered-off the engine flywheel by a U-joint-coupled accessory drive shaft, generally shown in Figure 1.
  • the unitized design of the accessory drive system tends to simplify engine-torque divider removal with a floor plate in the operator's compartment providing ready access to the drive system components for servicing purposes.
  • applicant's unique drive system wherein sprockets 15- 17, 20, and 21 are disposed in nested relationship, provides for the transmission of high engine torque and horsepower to input shaft 19 for pump 12 while yet
  • Figure 3 illustrates a conventional chain drive arrangement C wherein a substantially larger standout dimension S' is required for similar applications.

Abstract

Agencement de transmission (10), particulièrement approprié pour entraîner un accessoire de moteur, comme par exemple une pompe (12). L'agencement consiste en un premier arbre rotatif (14) auquel sont attachés au moins deux premiers organes rotatifs (15, 16) et en un deuxième arbre rotatif (19) auquel est attaché au moins un organe rotatif (20) qui vient s'emboîter radialement entre les premiers organes (15, 16). Un organe de transmission flexible sans fin (22) est entraîné suir les organes rotatifs d'un arbre à l'autre (14, 19). Un tel emboîtement assure la transmission d'un arbre à l'autre (14, 19) d'un moteur ayant un couple et une puissance élevés tout en minimisant la distance entre les arbres de l'unité de transmission (10) par rapport aux agencements conventionnels de ce type, à roue dentée, à courroie ou à chaîne. Dans le mode préférentiel de réalisation commerciale de cette invention, les organes rotatifs (15, 16, 20) ont chacun la forme d'un pignon, et la transmission flexible (22) est une chaîne sans fin.
PCT/US1981/001746 1981-12-24 1981-12-24 Agencement accessoire de transmission WO1983002307A1 (fr)

Priority Applications (3)

Application Number Priority Date Filing Date Title
JP82500612A JPS58502158A (ja) 1981-12-24 1981-12-24 補機の駆動装置
EP19820900585 EP0097156A4 (fr) 1981-12-24 1981-12-24 Agencement accessoire de transmission.
PCT/US1981/001746 WO1983002307A1 (fr) 1981-12-24 1981-12-24 Agencement accessoire de transmission

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/US1981/001746 WO1983002307A1 (fr) 1981-12-24 1981-12-24 Agencement accessoire de transmission

Publications (1)

Publication Number Publication Date
WO1983002307A1 true WO1983002307A1 (fr) 1983-07-07

Family

ID=22161580

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US1981/001746 WO1983002307A1 (fr) 1981-12-24 1981-12-24 Agencement accessoire de transmission

Country Status (3)

Country Link
EP (1) EP0097156A4 (fr)
JP (1) JPS58502158A (fr)
WO (1) WO1983002307A1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6743133B2 (en) 2000-04-19 2004-06-01 Joh. Winkelhofer & Sohne Gmbh Und Co. Kg Chain drive, especially a camshaft/camshaft drive for a motor vehicle
US7534181B2 (en) 2004-11-26 2009-05-19 Joh. Winklhofer & Söhne GmbH und Co. KG Chain drive with chain wheel and aligned support wheel
RU196219U1 (ru) * 2019-10-22 2020-02-19 Николай Иванович Хабрат Цепная передача с повышенным передаточным отношением Н.И. Хабрата

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1877339A (en) * 1932-09-13 Iitoiakta
US2492219A (en) * 1944-04-13 1949-12-27 Austin Motor Co Ltd Chain tensioner
US2500216A (en) * 1948-06-04 1950-03-14 Otto E Szekely Generator drive
US2613544A (en) * 1951-08-17 1952-10-14 Cullman Wheel Co Mounting for transmission gearing and guard
FR1063242A (fr) * 1952-06-30 1954-04-30 Sedis Transmissions Mec Chaîne de transmission et ses applications
US3151495A (en) * 1961-12-26 1964-10-06 Cyrus B Kurtz Gearing apparatus
US3193087A (en) * 1963-08-05 1965-07-06 Champion Spark Plug Co Conveyor assembly

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1877338A (en) * 1929-10-23 1932-09-13 Diamond Chain And Mfg Company Chain drive
GB470058A (en) * 1935-12-21 1937-08-09 Karl Salomon Improvements in or relating to chain drives

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1877339A (en) * 1932-09-13 Iitoiakta
US2492219A (en) * 1944-04-13 1949-12-27 Austin Motor Co Ltd Chain tensioner
US2500216A (en) * 1948-06-04 1950-03-14 Otto E Szekely Generator drive
US2613544A (en) * 1951-08-17 1952-10-14 Cullman Wheel Co Mounting for transmission gearing and guard
FR1063242A (fr) * 1952-06-30 1954-04-30 Sedis Transmissions Mec Chaîne de transmission et ses applications
US3151495A (en) * 1961-12-26 1964-10-06 Cyrus B Kurtz Gearing apparatus
US3193087A (en) * 1963-08-05 1965-07-06 Champion Spark Plug Co Conveyor assembly

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See also references of EP0097156A4 *

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6743133B2 (en) 2000-04-19 2004-06-01 Joh. Winkelhofer & Sohne Gmbh Und Co. Kg Chain drive, especially a camshaft/camshaft drive for a motor vehicle
US7534181B2 (en) 2004-11-26 2009-05-19 Joh. Winklhofer & Söhne GmbH und Co. KG Chain drive with chain wheel and aligned support wheel
RU196219U1 (ru) * 2019-10-22 2020-02-19 Николай Иванович Хабрат Цепная передача с повышенным передаточным отношением Н.И. Хабрата

Also Published As

Publication number Publication date
EP0097156A4 (fr) 1984-05-11
JPS58502158A (ja) 1983-12-15
EP0097156A1 (fr) 1984-01-04

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