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 casingInfo
- 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- Withdrawn
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.
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)
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)
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 |
-
1977
- 1977-06-09 FR FR7717641A patent/FR2393991A1/en not_active Withdrawn
Patent Citations (1)
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)
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 |