FR2393991A1 - Heavy construction vehicle gearbox - has preassembled layshaft gears, clutches and bearings inserted through opening in front of casing - Google Patents

Heavy construction vehicle gearbox - has preassembled layshaft gears, clutches and bearings inserted through opening in front of casing

Info

Publication number
FR2393991A1
FR2393991A1 FR7717641A FR7717641A FR2393991A1 FR 2393991 A1 FR2393991 A1 FR 2393991A1 FR 7717641 A FR7717641 A FR 7717641A FR 7717641 A FR7717641 A FR 7717641A FR 2393991 A1 FR2393991 A1 FR 2393991A1
Authority
FR
France
Prior art keywords
casing
clutches
opening
preassembled
construction vehicle
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.)
Withdrawn
Application number
FR7717641A
Other languages
French (fr)
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.)
ZF Friedrichshafen AG
Original Assignee
ZF Friedrichshafen AG
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 ZF Friedrichshafen AG filed Critical ZF Friedrichshafen AG
Priority to FR7717641A priority Critical patent/FR2393991A1/en
Publication of FR2393991A1 publication Critical patent/FR2393991A1/en
Withdrawn legal-status Critical Current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
    • F16H3/08—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion without gears having orbital motion exclusively or essentially with continuously meshing gears, that can be disengaged from their shafts
    • F16H3/087—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion without gears having orbital motion exclusively or essentially with continuously meshing gears, that can be disengaged from their shafts characterised by the disposition of the gears
    • F16H3/093—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion without gears having orbital motion exclusively or essentially with continuously meshing gears, that can be disengaged from their shafts characterised by the disposition of the gears with two or more countershafts
    • 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
    • F16H63/00—Control outputs from the control unit to change-speed- or reversing-gearings for conveying rotary motion or to other devices than the final output mechanism
    • F16H63/02—Final output mechanisms therefor; Actuating means for the final output mechanisms
    • F16H63/30—Constructional features of the final output mechanisms
    • F16H63/3023—Constructional features of the final output mechanisms the final output mechanisms comprising elements moved by fluid pressure
    • F16H63/3026—Constructional features of the final output mechanisms the final output mechanisms comprising elements moved by fluid pressure comprising friction clutches or brakes
    • 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
    • F16H3/08—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion without gears having orbital motion exclusively or essentially with continuously meshing gears, that can be disengaged from their shafts
    • F16H3/087—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion without gears having orbital motion exclusively or essentially with continuously meshing gears, that can be disengaged from their shafts characterised by the disposition of the gears
    • F16H3/093—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion without gears having orbital motion exclusively or essentially with continuously meshing gears, that can be disengaged from their shafts characterised by the disposition of the gears with two or more countershafts
    • F16H2003/0936—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion without gears having orbital motion exclusively or essentially with continuously meshing gears, that can be disengaged from their shafts characterised by the disposition of the gears with two or more countershafts with multiple countershafts comprising only two idle gears and one gear fixed to the countershaft

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Structure Of Transmissions (AREA)
  • General Details Of Gearings (AREA)

Abstract

The gearbox for a heavy construction vehicle has four forward gear ratios and three reverse gear ratios, and has a hydrodynamic torque converter preceding it. The gear casing is in one piece and the layshaft gears are on layshafts fixed in the casing and the input shaft is mounted in a casing cover which closes a front opening of the gear casing. This opening is made large enough to enable the layshaft gears, clutches and bearings which have been preassembled, to be inserted through it. This gives a saving in production costs. The gear system includes clutches for the first and fourth gear ratios.
FR7717641A 1977-06-09 1977-06-09 Heavy construction vehicle gearbox - has preassembled layshaft gears, clutches and bearings inserted through opening in front of casing Withdrawn FR2393991A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7717641A FR2393991A1 (en) 1977-06-09 1977-06-09 Heavy construction vehicle gearbox - has preassembled layshaft gears, clutches and bearings inserted through opening in front of casing

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7717641A FR2393991A1 (en) 1977-06-09 1977-06-09 Heavy construction vehicle gearbox - has preassembled layshaft gears, clutches and bearings inserted through opening in front of casing

Publications (1)

Publication Number Publication Date
FR2393991A1 true FR2393991A1 (en) 1979-01-05

Family

ID=9191870

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7717641A Withdrawn FR2393991A1 (en) 1977-06-09 1977-06-09 Heavy construction vehicle gearbox - has preassembled layshaft gears, clutches and bearings inserted through opening in front of casing

Country Status (1)

Country Link
FR (1) FR2393991A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1985005426A1 (en) * 1984-05-17 1985-12-05 Windsor Smith Claude P Change speed gear trains

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2529248A1 (en) * 1975-07-01 1977-01-13 Zahnradfabrik Friedrichshafen Multistage gear box with unitary housing - has large opening through which gear subassemblies are passed

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2529248A1 (en) * 1975-07-01 1977-01-13 Zahnradfabrik Friedrichshafen Multistage gear box with unitary housing - has large opening through which gear subassemblies are passed

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1985005426A1 (en) * 1984-05-17 1985-12-05 Windsor Smith Claude P Change speed gear trains

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Legal Events

Date Code Title Description
ST Notification of lapse