WO2010002370A1 - Transmission compacte pour engins de travail - Google Patents

Transmission compacte pour engins de travail Download PDF

Info

Publication number
WO2010002370A1
WO2010002370A1 PCT/US2008/008277 US2008008277W WO2010002370A1 WO 2010002370 A1 WO2010002370 A1 WO 2010002370A1 US 2008008277 W US2008008277 W US 2008008277W WO 2010002370 A1 WO2010002370 A1 WO 2010002370A1
Authority
WO
WIPO (PCT)
Prior art keywords
housing
transmission
work machine
prime mover
pto
Prior art date
Application number
PCT/US2008/008277
Other languages
English (en)
Inventor
Brian Daniel Durbin
Thomas George Ore
Chad G. Vandenberg
Bradley Allen Merrill
Jeremie J. Peterson
Richard Neville Knowles
Original Assignee
Deere & Company
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 Deere & Company filed Critical Deere & Company
Priority to PCT/US2008/008277 priority Critical patent/WO2010002370A1/fr
Priority to CN2008801298256A priority patent/CN102066809A/zh
Priority to EP08779976A priority patent/EP2307763A4/fr
Priority to BRPI0822797-7A priority patent/BRPI0822797A2/pt
Publication of WO2010002370A1 publication Critical patent/WO2010002370A1/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
    • F16H57/00—General details of gearing
    • F16H57/02—Gearboxes; Mounting gearing therein
    • 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
    • F16H57/00—General details of gearing
    • F16H57/02—Gearboxes; Mounting gearing therein
    • F16H57/037—Gearboxes for accommodating differential gearings
    • 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
    • F16H57/00—General details of gearing
    • F16H57/02—Gearboxes; Mounting gearing therein
    • F16H2057/02013—Extension units for gearboxes, e.g. additional units attached to a main gear
    • 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
    • F16H57/00—General details of gearing
    • F16H57/02—Gearboxes; Mounting gearing therein
    • F16H2057/02026—Connection of auxiliaries with a gear case; Mounting of auxiliaries on the gearbox
    • 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
    • F16H57/00—General details of gearing
    • F16H57/02—Gearboxes; Mounting gearing therein
    • F16H2057/02039—Gearboxes for particular applications
    • F16H2057/02043—Gearboxes for particular applications for vehicle transmissions
    • 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
    • F16H57/00—General details of gearing
    • F16H57/02—Gearboxes; Mounting gearing therein
    • F16H2057/02039—Gearboxes for particular applications
    • F16H2057/02043—Gearboxes for particular applications for vehicle transmissions
    • F16H2057/02052—Axle units; Transfer casings for four wheel drive
    • 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
    • F16H57/00—General details of gearing
    • F16H57/02—Gearboxes; Mounting gearing therein
    • F16H2057/02039—Gearboxes for particular applications
    • F16H2057/02043—Gearboxes for particular applications for vehicle transmissions
    • F16H2057/02056—Gearboxes for particular applications for vehicle transmissions for utility vehicles, e.g. tractors or agricultural machines
    • 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
    • F16H57/00—General details of gearing
    • F16H57/02—Gearboxes; Mounting gearing therein
    • F16H2057/02086—Measures for reducing size of gearbox, e.g. for creating a more compact transmission casing

Definitions

  • the present invention relates to work machines, and more specifically to transmissions used in such work machines.
  • a work machine such as an agricultural tractor may be driven with motive force taking several different forms such as a rear wheel drive, four wheel drive (4WD) 1 mechanical front wheel drive (MFWD), endless track drive and other forms.
  • Transmissions providing outputs of these types also typically provide a power take off or PTO used to drive agricultural processing equipment at an RPM appropriate for the processing equipment.
  • PTO power take off
  • such transmissions frequently incorporate a creeper gear that provides a substantially lower vehicle ground speed than that obtainable with the normal speed range gears within the transmission.
  • the invention is a transmission for a work machine in which the transmission includes a first housing and a differential drive mechanism mounted in the first housing.
  • a second housing is removably mounted to one side of the first housing and supports a plurality of speed range gears.
  • the speed range gears receive a prime mover power input from a direction away from the first housing and have at least a power input to the differential drive mechanism.
  • a third housing is removably mounted to the second side of the first housing and has a mechanism within the third housing providing a secondary power output, the mechanism being driven by the prime mover through the first housing.
  • the invention in another form, includes a work machine having a prime mover providing a rotary output.
  • a transmission receives the output from the prime mover.
  • the transmission includes a first housing and a differential drive mechanism mounted in the first housing.
  • a second housing is removably mounted to a one side of the first housing.
  • a plurality of speed range gears are mounted in the second housing and receive the input from the prime mover.
  • the second housing is positioned between the first housing and the prime mover.
  • the speed range gears provide at least a power input to the differential drive mechanism.
  • a third housing is removably mounted to a second side of the first housing and has a mechanism within the third housing providing a secondary power output, the mechanism being driven from the prime mover through the first housing.
  • FIG. 1 is an external perspective view of a work machine incorporating a transmission which embodies the present invention
  • FIG. 2 is a partial sectioned view of the transmission shown in Fig. 1 taken on lines 2-2 of Fig. 1 ;
  • Fig. 3 is a perspective view of the transmission of Fig. 1 taken from a different perspective and partially cut away to show the internal components within the transmission.
  • Tractor 10 includes a transmission 12 coupled with a rear end differential 14 which in turn drives a pair of axles 16. Each rear axle 16 includes an outboard hub 18 to which a respective rear drive wheel (not shown) is mounted.
  • Transmission 12 includes a driven shaft 20 which is mechanically coupled with and receives rotational input from an internal combustion (IC) engine 22 shown schematically in Fig. 1. Driven shaft 20 transfers rotational power via appropriate speed range gears to differential 14 which in turn extends from the rear of and provides rotational input power to the rear end differential gear set 26 (see Fig. 2).
  • IC internal combustion
  • Driven shaft 20 extends through and is rotatably carried by housing 72 which likewise houses and rotatably carries a number of other components. Also positioned within and carried by housing 28 is an idler arrangement 30 which mechanically interconnects between a power input 32 and a power output 34.
  • power input includes an input shaft 36 and an input gear 38 carried by input shaft 36.
  • input shaft 36 is in fact the differential drive shaft 24 but could be a different rotatable drive shaft providing input power to idler arrangement 30.
  • Input shaft 36 receives input power from driven shaft 20 coupled with engine 22.
  • housing 12 consists of a first housing 70 containing differential 14 and a second housing 72 containing a plurality of speed range gears, generally indicated by reference character 74.
  • Speed range gears 74 are journaled within the housing 72 which is removably connected to housing 70 by appropriate fasteners. As shown in Fig. 2, speed range gears 74 are selectively connectable to drive shaft 24 providing an input to the ring gear 26 of the differential 14.
  • idler assembly 30 Also within housing 74 is contained in idler assembly 30 having an input shaft 44 with gear 46 meshing with a gear 38 on shaft 24. Gears 48 mesh with output shaft 40 providing drive to the MFWD 41.
  • gears 48 mesh with output shaft 40 providing drive to the MFWD 41.
  • the idler assembly 30 is laterally spaced from shaft 24 so that the mechanism for the gear ratios is placed within a compact overall envelope.
  • a creeper gear assembly 50 is positioned within housing 72 and housing 70 and is also laterally spaced from shaft 24 so that the mechanism takes up otherwise unused space within housing 70.
  • the idler mechanism 30 is positioned generally below shaft 24 so as to provide room for a hydraulic and lube pump assembly generally indicated by reference character 76. These are spaced laterally from the center of housing 72 but fit within the overall axial envelope of the housing.
  • the hydraulic and lube pump assembly 76 provide lubrication to the internal gears and components of the transmission 12 but also provide hydraulic fluid under pressure for other components of the work machine 10.
  • the housing 70 in addition to containing the differential assembly 14, has various gear reduction components 77 and service brakes 78 mounted in housing 70. End plates 80 integral with axles 16 are provided at the lateral ends of housing 70.
  • the transmission assembly 12 contains a third housing 82 removably secured to housing 70. Housing 82 includes a hitch 84 and contains an input drive 87 for a PTO generally indicated by reference character 86 in Fig. 3. The drive for PTO 86 extends from housing 72 through housing 70 into PTO 86. The drive 87 is offset relative to the differential gear set 26 so that the drive can pass through.
  • the PTO provides a predetermined RPM ratio with respect to the engine input shaft 22 and is adaptable to be coupled and decoupled as needed for a particular operating duty cycle.
  • the PTO 86 generally occupies no more than the axial depth of the housing 82 to further enhance a compact overall package.
  • a valve distribution body 88 is positioned on top of the housing 70 to provide a central location for the valving functions of the transmission 12 and receives pressurized fluid through internal passages (not shown) from the hydraulic and lube pump assembly 76.
  • the return fluid for the valve distribution body 88 is directed through the PTO 86 to provide efficient lubrication without un-necessary pressurization of fluid.
  • the overall arrangement of the components within the transmission 12 results in an architecturally compact transmission where the components are positioned so that a minimal overall transmission length is achieved. Extra components are positioned laterally either to the side, as with the hydraulic and lube pump assembly 76 or downward, as with the idler assembly 30 for the MFWD 41 so as to fill the non-axial space of the housing 72.
  • This arrangement of the components permits the application of the transmission 12 into a wider range of work machines.
  • the transmission 12 provides all the features that are normally found in transmissions of this type.
  • the arrangement of the parts within the transmission generally results in a transmission package that is roughly half the axial length of prior art transmissions.
  • the provision of the speed range gears 74 and MFWD drive within the housing 72 allows for efficient subassembly and subsequent connection to housing 70 which contains the differential 14 and associated speed reduction gears and service brakes 78.
  • the provision of the housing 86 on the opposite side of housing 70 allows for rapid selection of alternate option packages by simply fastening and un-fastening housing 86.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Details Of Gearings (AREA)
  • Motor Power Transmission Devices (AREA)

Abstract

L'invention porte sur une transmission compacte (12) pour un engin de travail (10), laquelle transmission comprend un boîtier central (70) pour un mécanisme de différentiel (14), un réducteur de vitesse (77) et des freins de service (78) s'étendant sur une paire d'essieux (16). Un second boîtier est fixé de façon amovible sur le boîtier central (72) et contient des engrenages pour plage de vitesse (74), un entraînement de roue avant mécanique (41) et un ensemble super-réducteur de vitesse (50). Ce boîtier (72) contient également les pompes de lubrifiant et hydraulique (76) qui sont latéralement espacées de l'entrée d'entraînement. Un corps de soupape (88) positionné au-dessus du boîtier central assure une commande de tous les ensembles de soupape. Un second boîtier (82) est fixé au boîtier central (72) et permet un montage pour une prise de force (86) qui est entraînée à travers le boîtier central (72) et est positionnée pour un retrait et un remplacement efficaces d'une diversité d'options de prise de force.
PCT/US2008/008277 2008-07-03 2008-07-03 Transmission compacte pour engins de travail WO2010002370A1 (fr)

Priority Applications (4)

Application Number Priority Date Filing Date Title
PCT/US2008/008277 WO2010002370A1 (fr) 2008-07-03 2008-07-03 Transmission compacte pour engins de travail
CN2008801298256A CN102066809A (zh) 2008-07-03 2008-07-03 用于作业机械的紧凑的变速器
EP08779976A EP2307763A4 (fr) 2008-07-03 2008-07-03 Transmission compacte pour engins de travail
BRPI0822797-7A BRPI0822797A2 (pt) 2008-07-03 2008-07-03 Transmissão para uma máquina mecânica, e, máquina mecânica

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/US2008/008277 WO2010002370A1 (fr) 2008-07-03 2008-07-03 Transmission compacte pour engins de travail

Publications (1)

Publication Number Publication Date
WO2010002370A1 true WO2010002370A1 (fr) 2010-01-07

Family

ID=41466232

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2008/008277 WO2010002370A1 (fr) 2008-07-03 2008-07-03 Transmission compacte pour engins de travail

Country Status (4)

Country Link
EP (1) EP2307763A4 (fr)
CN (1) CN102066809A (fr)
BR (1) BRPI0822797A2 (fr)
WO (1) WO2010002370A1 (fr)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP6130285B2 (ja) * 2013-11-08 2017-05-17 本田技研工業株式会社 変速機取付構造
JP6331993B2 (ja) * 2014-11-27 2018-05-30 スズキ株式会社 自動変速機
CN106438940A (zh) * 2016-08-31 2017-02-22 重庆铁马工业集团有限公司 一种变分一体化箱体
DE102017223312A1 (de) * 2016-12-28 2018-06-28 Suzuki Motor Corporation Automatikgetriebe
JP6565946B2 (ja) * 2017-01-27 2019-08-28 トヨタ自動車株式会社 制御部品ユニットの取付構造
FR3072618B1 (fr) * 2017-10-24 2019-11-01 Poclain Hydraulics Industrie Prise de force deportee pour machine hydraulique
CN113819227A (zh) * 2021-09-26 2021-12-21 一汽解放汽车有限公司 一种中桥减速器总成

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4579183A (en) * 1984-02-20 1986-04-01 Kanzaki Kokyukoki Mfg. Co., Ltd. Transmission for self-propelled working vehicles
US5913950A (en) * 1996-01-08 1999-06-22 Kanzaki Kokyukoki Mfg. Co., Ltd. Transmission for a working vehicle
US5947218A (en) * 1996-07-08 1999-09-07 Kanzaki Kobyukoki Mfg. Co., Ltd. Power take-off transmission for a working vehicle
US5988004A (en) * 1997-09-15 1999-11-23 Mtd Products Inc Internal power take-off shaft
US20010030083A1 (en) * 1999-04-22 2001-10-18 Subrata Roy Lubrication system
US6324842B1 (en) * 1998-01-20 2001-12-04 Kanzaki Kokyukoki Mfg. Co., Ltd. Axle driving apparatus

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1122569A (fr) * 1954-04-14 1956-09-10 Porsche Kg Tracteur, et notamment tracteur agricole avec arbre de prise de force
GB2179413B (en) * 1985-08-20 1990-04-04 Kubota Ltd Tractor transmission
US4794807A (en) * 1986-06-12 1989-01-03 Kubota, Ltd. Tractor transmission
US4785682A (en) * 1987-05-20 1988-11-22 Honda Giken Kogyo Kabushiki Kaisha Power transmission device
US4938085A (en) * 1987-06-30 1990-07-03 Honda Giken Kogyo Kabushiki Kaisha Power transmission system in a tractor
JPH10217784A (ja) * 1997-02-07 1998-08-18 Kanzaki Kokyukoki Mfg Co Ltd トラクタの動力取出し装置
JP3602413B2 (ja) * 2000-06-30 2004-12-15 株式会社クボタ トラクタミッションの潤滑装置
JP2003127684A (ja) * 2001-10-25 2003-05-08 Iseki & Co Ltd 移動農機
JP2004345568A (ja) * 2003-05-23 2004-12-09 Yanmar Co Ltd トラクタ

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4579183A (en) * 1984-02-20 1986-04-01 Kanzaki Kokyukoki Mfg. Co., Ltd. Transmission for self-propelled working vehicles
US5913950A (en) * 1996-01-08 1999-06-22 Kanzaki Kokyukoki Mfg. Co., Ltd. Transmission for a working vehicle
US6553759B2 (en) * 1996-01-08 2003-04-29 Kanzaki Kokyukoki Mfg. Co., Ltd. Transmission for a working vehicle
US5947218A (en) * 1996-07-08 1999-09-07 Kanzaki Kobyukoki Mfg. Co., Ltd. Power take-off transmission for a working vehicle
US5988004A (en) * 1997-09-15 1999-11-23 Mtd Products Inc Internal power take-off shaft
US6324842B1 (en) * 1998-01-20 2001-12-04 Kanzaki Kokyukoki Mfg. Co., Ltd. Axle driving apparatus
US20010030083A1 (en) * 1999-04-22 2001-10-18 Subrata Roy Lubrication system

Also Published As

Publication number Publication date
EP2307763A1 (fr) 2011-04-13
CN102066809A (zh) 2011-05-18
BRPI0822797A2 (pt) 2015-06-30
EP2307763A4 (fr) 2011-11-09

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