Transmission gear for transverse mounting and motor vehicle with transmission gear mounted therein

• US 4,523,493 A
• Filed: 09/16/1982
• Issued: 06/18/1985
• Est. Priority Date: 09/23/1981
• Status: Expired due to Fees

• Current Assignee: Deere & Company
• Original Assignee: Deere & Company
• Inventors: Wei.beta., Heinz
• Primary Examiner(s): Staab, Lawrence J.
• Assistant Examiner(s): NOT, DEFINED
• Application Number:
  US06/419,091
• Time in Patent Office: 1,006 Days
• Field of Search: 74/15.8, 74/15.82, 74/15.84, 74/15.66, 74/714, 74/606 R, 74/740, 74/694, 74/695, 74/700, 74/701, 180/53 R, 180/53 B
• US Class Current: 475/205
• CPC Class Codes: B60K 17/04 characterised by arrangement, location, or kind of gearing electric equipment or propulsion of electrically-propelled vehicles B60L
• CPC Class Codes: B60K 17/08 of mechanical type
• CPC Class Codes: F16H 37/042 change gear transmissions in group arrangement
• CPC Class Codes: Y10T 74/2186 Gear casings

Abstract

A transmission is mounted transversely in an agricultural or construction vehicle with a chassis frame. The transmission components are arranged substantially on two main shafts which are parallel, one to the other, and transverse to the engine input shaft. The drive runs, on the engine side, through a bevel gear drive. The transmission housing is formed of two shells and the plane of the joint therebetween contains the axial centerlines of the main shafts.

Claims

1. A transmission for transverse mounting in a vehicle having an in-line engine, the transmission comprising:

a longitudinal engine-driven shaft;

a hollow shaft driven by the engine shaft;

a transverse shaft extending through the hollow shaft, the hollow shaft driving the transverse shaft;

a range gear disposed on one side of the engine shaft, the hollow shaft driving the transverse shaft via the range gear; and

a change-speed gear driven by the transverse shaft and disposed on the side of the engine shaft opposite from the range gear.

2. In a vehicle having an in-line engine, a transverse gear box comprising:

a longitudinal engine-driven shaft;

an input shaft lying on a first transverse shaft line;

bevel gear means for coupling the engine-driven shaft to the input shaft;

an output shaft lying on a second transverse shaft line parallel to the first transverse shaft line;

a change-speed gear coupled between the input shaft and the output shaft;

an epicyclic range gear on one of the shaft lines, the epicyclic range gear driving the input shaft;

a pair of half-shafts on the second shaft line;

a differential gear between the output shaft and the pair of half-shafts; and

a hollow shaft driven by the bevel gear means, the hollow shaft driving the epicyclic range gear, the input shaft extending through the hollow shaft from the epicyclic range gear to the change-speed gear.

3. The transverse gear box of claim 2, further comprising:

a creep gear on the first shaft line; and

means for coupling the creep gear to the hollow shaft.

4. The transverse gearbox of claim 3, wherein the bevel gear means comprises:

a drive bevel gear meshing with first and second oppositely rotating bevel gears rotatably mounted on the hollow shaft; and

forward and reverse clutches disposed between the hollow shaft and the first and second bevel gears, respectively, the creep gear comprising an epicyclic gear which reverses its sense of rotation, and the means for coupling comprising a creep clutch between the second bevel gear and the hollow shaft.

5. The transverse gear box of claim 4, wherein the range gear comprises:

a two-stage epicyclic gear with an input annulus fixed with respect to the hollow shaft; and

means for selectively actuating the stages.

6. The transverse gearbox of claim 5, further comprising:

a direct drive clutch between the input annulus and the input shaft.

7. The transverse gearbox of claim 5, wherein:

the input annulus is fixed with respect to an output annulus of the creep gear.

8. The transverse gearbox of claim 7, wherein:

the creep gear has a non-rotating planet wheel carrier; and

the creep clutch is between the second bevel gear and a sun wheel of the creep gear.