WO2015072995A1 - Boîte de vitesses à relais mécanique conçue pour un service de transmission à changement de vitesse dans un véhicule - Google Patents

Boîte de vitesses à relais mécanique conçue pour un service de transmission à changement de vitesse dans un véhicule Download PDF

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Publication number
WO2015072995A1
WO2015072995A1 PCT/US2013/070021 US2013070021W WO2015072995A1 WO 2015072995 A1 WO2015072995 A1 WO 2015072995A1 US 2013070021 W US2013070021 W US 2013070021W WO 2015072995 A1 WO2015072995 A1 WO 2015072995A1
Authority
WO
WIPO (PCT)
Prior art keywords
transmission section
support tool
service support
countershaft
axially extending
Prior art date
Application number
PCT/US2013/070021
Other languages
English (en)
Inventor
Brian E. GORDON
Original Assignee
Volvo Truck Corporation
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 Volvo Truck Corporation filed Critical Volvo Truck Corporation
Priority to PCT/US2013/070021 priority Critical patent/WO2015072995A1/fr
Publication of WO2015072995A1 publication Critical patent/WO2015072995A1/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
    • F16H57/023—Mounting or installation of gears or shafts in the gearboxes, e.g. methods or means for assembly
    • 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
    • F16H2057/0062—Tools specially adapted for assembly of 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
    • F16H2057/02026—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
    • 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
    • F16H37/04—Combinations of toothed gearings only
    • F16H37/042—Combinations of toothed gearings only change gear transmissions in group arrangement
    • F16H37/043—Combinations of toothed gearings only change gear transmissions in group arrangement without gears having orbital motion

Definitions

  • the present invention relates to range transmission design for in chassis service. BACKGROUND OF THE INVENTION
  • chassis service of the range transmission section of compound transmissions is a common practice because it saves time and cost relative to removing the range transmission section or the complete compound transmission from the vehicle.
  • chassis service typically involves installing a number of restraining clips through an access cover located at the top of the range transmission section. Access to this opening may be difficult due to the proximity of chassis components, such as the body of the vehicle and the frame. The process also involves removal of internal fasteners and replacement with additional restraining clips. Additionally, after the range housing is removed several additional clips must be installed to secure internal components.
  • Out of chassis service typically involves using holding covers that secure range transmission section internal components to the range housing. Once the holding covers are installed, the entire range transmission section may be removed; however, owing to the fact that the range transmission section can weigh in excess of 200 LBS, removal and
  • the present invention relates to an improved range transmission design for in chassis service.
  • a method for providing a compound transmission comprises the steps of, providing a transmission housing, providing a main transmission section with at least one gear ratio, wherein the main transmission section is located within and supported by the transmission housing and provided with at least one countershaft that internally defines a first axially extending service support tool receiving cavity, providing a range transmission section with at least one gear ratio, wherein the range transmission section is provided with at least one countershaft that internally defines a second axially extending service support tool receiving cavity, and providing the at least one countershaft of the main transmission section and the at least one countershaft of the range transmission section with a co-axial relationship so that the first and second axially extending service support tool cavities each define at least a portion of a tool receiving pathway that is dimensioned to receive a service support tool, which, in combination with the at least one countershaft of the main transmission section, can support the at least one counter shaft of the range transmission section and associated gears during service.
  • a vehicle compound transmission comprises a transmission housing, a main transmission section, and a range transmission section.
  • the main transmission section is provided with at least one gear ratio, is located within and supported by the transmission housing, and is provided with at least one countershaft that internally defines a first axially extending service support tool receiving cavity.
  • the range transmission section is provided with at least one gear ratio and at least one countershaft that internally defines a second axially extending service support tool receiving cavity that is coaxial with the first axially extending service support tool receiving cavity.
  • the first and second axially extending service support tool receiving cavities are dimensioned to receive a service support tool, which, in combination with the at least one countershaft of the main transmission section, supports the at least one counter shaft of the range
  • a method for supporting at least one countershaft of a range transmission section of a compound transmission during in vehicle service comprises the step of making the service support tool receiving cavities accessible, inserting a service support tool into the at least one first and second axially extending service support tool receiving cavities, and using the service tool in combination with the at least one counter shaft of the main transmission section to support the at least one counter shaft of the range transmission section and associated gears during service.
  • a method for providing a compound transmission comprises the steps of, providing a transmission housing, providing a main transmission section with at least one gear ratio, wherein the main transmission section is located within and supported by the transmission housing and provided with at least one countershaft that internally defines a first axially extending service support tool receiving cavity, providing a range transmission section with at least one gear ratio, wherein the range transmission section is provided with at least one countershaft that internally defines a second axially extending service support tool receiving cavity, and providing the at least one countershaft of the main transmission section and the at least one countershaft of the range transmission section with a co-axial relationship so that the first and second axially extending service support tool cavities each define at least a portion of a tool receiving pathway that is dimensioned to receive a service support tool, which, in combination with the at least one countershaft of the main transmission section, can support the at least one counter shaft of the range transmission section and associated gears during service.
  • the method for providing a compound transmission further includes the steps of providing the service support tool and using the service support tool in combination with the at least one countershaft of the main transmission section to support the at least one counter shaft of the range transmission section and associated gears during service.
  • a vehicle compound transmission comprises a transmission housing, a main transmission section, and a range transmission section.
  • the main transmission section is provided with at least one gear ratio, is located within and supported by the transmission housing, and is provided with at least one countershaft that internally defines a first axially extending service support tool receiving cavity.
  • the range transmission section is provided with at least one gear ratio and at least one countershaft that internally defines a second axially extending service support tool receiving cavity that is coaxial with the first axially extending service support tool receiving cavity.
  • the first and second axially extending service support tool receiving cavities are dimensioned to receive a service support tool, which, in combination with the at least one countershaft of the main transmission section, supports the at least one counter shaft of the range
  • the vehicle compound transmission further comprises the service support tool that is received by the first and second axially extending service support tool receiving cavities and, which, in combination with the at least one countershaft of the main
  • transmission section supports the at least one counter shaft of the range transmission section and associated gears during service.
  • a method for supporting at least one countershaft of a range transmission section of a compound transmission during in vehicle service comprises the step of making the service support tool receiving cavities accessible, inserting a service support tool into the at least one first and second axially extending service support tool receiving cavities, and using the service tool in combination with the at least one counter shaft of the main transmission section to support the at least one counter shaft of the range transmission section and associated gears during service.
  • FIG. 1 depicts a sectional view of a compound transmission according to one embodiment.
  • FIG. 2 depicts a sectional view of a compound transmission according to one embodiment.
  • FIG. 3 depicts a sectional view of a compound transmission and a service support tool according to one embodiment.
  • FIG. 4 depicts a sectional view of a compound transmission and a service support tool according to one embodiment.
  • FIG. 5 depicts a sectional view of a compound transmission and a service support tool according to one embodiment.
  • FIG. 6 depicts a sectional view of a compound transmission and a service support tool according to one embodiment.
  • FIG. 1 illustrates a compound transmission 10 according to one embodiment of the present invention.
  • the compound transmission 10 is provided with a main transmission section 20 and a range transmission section 40, also known as an auxiliary transmission section, located within and supported by a housing 1 1 of the compound transmission 10.
  • the housing 11 is provided with a range housing section 1 1a and a main housing section 1 lb.
  • the main transmission section 20 includes an input shaft 25, a plurality of gears, as at 26, a countershaft 27, and an output shaft 28.
  • the input shaft 25 receives torque from engine output shaft (not shown).
  • the input shaft 25 transfers torque to the countershaft 27 and the countershaft 27 transfers torque to the output shaft 28. Additionally, those of ordinary skill in the art will further appreciate that the input shaft 25 may transfer torque directly to the output shaft 28 when the main transmission section 20 is operating in direct drive.
  • At least one gear ratio is available to the main transmission section 20.
  • six gear ratios are available to the main transmission section 20.
  • One of the six gear ratios is utilized when the main transmission section 20 is operated in direct drive and the other five gear ratios are utilized when the countershaft 27 receives torque from the input shaft 25 and transfers torque to the output shaft 28, via gears 46.
  • the range transmission section 40 includes a plurality of gears, as at 46, a counter shaft 47, and an output shaft 48.
  • gears 46 the countershaft 47 receives torque from the output shaft 28 of the main transmission section and transfers torque to the output shaft 48.
  • the output shaft 28 may transfer torque directly to the output shaft 48 when the range transmission section 40 is operating in direct drive.
  • At least one and preferably at least two gear ratios are available to the range transmission section 40.
  • the range transmission 40section is provided with two gear ratios. The first gear ratio is utilized when the range transmission section is operated in direct drive and the second gear ratio is utilized when the countershaft 47 receives torque from the output shaft 28 of the main transmission section and transfers torque to the output shaft 48, via gears 46. It will be apparent to those of ordinary skill in the art that the total number of available gear ratios available to the transmission 10 is equal to the product of the gear ratios available to the main transmission section 20 and the gear ratios available to the range transmission section 40.
  • the compound transmission 10 is configured for simple in vehicle service of the range transmission section 40. According to another aspect of the present embodiment, the compound transmission 10 is configured so that a service support tool 100 (FIGS. 3-6) in combination with the countershaft 27 of the main transmission section 20 supports the at least one counter shaft 47 of the range transmission section 40 and any associated gears 46 during service.
  • a service support tool 100 FIGS. 3-6
  • the countershaft 27 of the main transmission section 20 internally defines a first axially extending service support tool receiving cavity 21.
  • the countershaft 47 of the range transmission section 40 internally defines a second axially extending service support tool receiving cavity 41 that is coaxial with the first axially extending service support tool receiving cavity 21.
  • the first and second axially extending service support tool receiving cavities 21, 41 each define at least a portion of a tool receiving pathway 12 in the compound transmission 10 that is dimensioned to receive a service support tool 100.
  • FIGS. 2-6 using the service support tool 100 to support the countershaft 47 of the range transmission section 40 during vehicle service is depicted.
  • the method commences with making the service support tool receiving cavities 21 accessible. As shown by a comparison of FIGS. 2 and 3, in the illustrated transmission 10, this may involve removing a bearing retainer 70 for the second counter shaft 47; however, this will depend on the design of the transmission.
  • the service support tool 100 is installed into the first and second service support tool receiving cavities 21, 41. As shown, the service support tool 100 is an elongated rod.
  • the service support tool 100 in combination with the countershaft 27 of the main transmission section 20 may be used to support the counter shaft 47, gears 46, and the output shaft 48. Thereafter, to provide better access to the counter shaft 47, gears 46, and the output shaft 48, during service, a variety of range transmission section components can be removed, including, for example, and not limitation, the access cover 71 for the range transmission section 40, an air cylinder cover 72 for the range transmission section 40, a range shift fork 73 for the range transmission section 40, the output bearings 74 for the output shaft 48 and the range housing 1 la may be removed, as shown in FIGS. 2-6. With the service support tool 100 installed, the range housing 1 la is no longer needed to support the counter shaft 47, gears 46, and the output shaft 48 during service.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Details Of Gearings (AREA)
  • Structure Of Transmissions (AREA)

Abstract

La présente invention concerne une boîte de vitesses à relais mécanique de véhicule qui comprend un logement de transmission, une section de transmission principale et une section de transmission à changement de vitesse. La section de transmission principale est pourvue d'au moins un rapport de démultiplication, est placée dans le logement de transmission et soutenue par ce dernier, est pourvue d'au moins un arbre de renvoi qui définit à l'intérieur une première cavité de réception d'outil de support de service s'étendant axialement. La section de transmission à changement de vitesse est pourvue d'au moins un rapport de démultiplication et d'au moins un arbre de renvoi qui à l'intérieur définit une seconde cavité de réception d'outil de support de service s'étendant axialement qui est coaxiale à la première cavité de réception d'outil de support de service s'étendant axialement. Les première et seconde cavités de réception d'outil de support de service s'étendant axialement sont dimensionnées de façon à recevoir un outil de support de service qui, en combinaison avec ledit au moins un arbre de renvoi de la section de transmission principale, soutient ledit au moins un arbre de renvoi de la section de transmission à changement de vitesse et des engrenages associés au cours du service.
PCT/US2013/070021 2013-11-14 2013-11-14 Boîte de vitesses à relais mécanique conçue pour un service de transmission à changement de vitesse dans un véhicule WO2015072995A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PCT/US2013/070021 WO2015072995A1 (fr) 2013-11-14 2013-11-14 Boîte de vitesses à relais mécanique conçue pour un service de transmission à changement de vitesse dans un véhicule

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/US2013/070021 WO2015072995A1 (fr) 2013-11-14 2013-11-14 Boîte de vitesses à relais mécanique conçue pour un service de transmission à changement de vitesse dans un véhicule

Publications (1)

Publication Number Publication Date
WO2015072995A1 true WO2015072995A1 (fr) 2015-05-21

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Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2013/070021 WO2015072995A1 (fr) 2013-11-14 2013-11-14 Boîte de vitesses à relais mécanique conçue pour un service de transmission à changement de vitesse dans un véhicule

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WO (1) WO2015072995A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110397720A (zh) * 2018-04-18 2019-11-01 铃木株式会社 自动变速器

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4409859A (en) * 1981-04-30 1983-10-18 Dana Corporation Shift-rail interlock bracket for compound transmission
US5390561A (en) * 1993-05-20 1995-02-21 Eaton Corporation Compound transmission
US5421216A (en) * 1993-05-14 1995-06-06 Eaton Corp Compound transmission having hybrid single and twin countershafts
US5546823A (en) * 1993-05-20 1996-08-20 Eaton Corporation High-capacity compound transmission

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4409859A (en) * 1981-04-30 1983-10-18 Dana Corporation Shift-rail interlock bracket for compound transmission
US5421216A (en) * 1993-05-14 1995-06-06 Eaton Corp Compound transmission having hybrid single and twin countershafts
US5390561A (en) * 1993-05-20 1995-02-21 Eaton Corporation Compound transmission
US5546823A (en) * 1993-05-20 1996-08-20 Eaton Corporation High-capacity compound transmission

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110397720A (zh) * 2018-04-18 2019-11-01 铃木株式会社 自动变速器
CN110397720B (zh) * 2018-04-18 2022-08-26 铃木株式会社 自动变速器

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