FR2414156A1 - Gearbox with main gear and two-branch group gear - is operated by hydraulic or pneumatic control motor regulated via valves by cam tracks carried by gear selector shaft - Google Patents

Gearbox with main gear and two-branch group gear - is operated by hydraulic or pneumatic control motor regulated via valves by cam tracks carried by gear selector shaft

Info

Publication number
FR2414156A1
FR2414156A1 FR7800216A FR7800216A FR2414156A1 FR 2414156 A1 FR2414156 A1 FR 2414156A1 FR 7800216 A FR7800216 A FR 7800216A FR 7800216 A FR7800216 A FR 7800216A FR 2414156 A1 FR2414156 A1 FR 2414156A1
Authority
FR
France
Prior art keywords
gear
control motor
cam tracks
gearbox
operated
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.)
Granted
Application number
FR7800216A
Other languages
French (fr)
Other versions
FR2414156B1 (en
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 FR7800216A priority Critical patent/FR2414156A1/en
Publication of FR2414156A1 publication Critical patent/FR2414156A1/en
Application granted granted Critical
Publication of FR2414156B1 publication Critical patent/FR2414156B1/fr
Granted 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
    • F16H61/00—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing
    • F16H61/24—Providing feel, e.g. to enable selection
    • 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
    • F16H63/40—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 comprising signals other than signals for actuating the final output mechanisms
    • F16H63/44—Signals to the control unit of auxiliary gearing

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Mechanically-Actuated Valves (AREA)

Abstract

The gearbox consists of a main gear and a two-branch group gear that can be changed by a pressure-operated control motor or cylinder. The gear is selected by a shaft that moves axially to select a gear branch and rotates to engage a gear within the branch. The shaft carries a component that has cam tracks corresponding to the gear branches. Near each of the cam tracks, the housing has a three-part two-position valve, to regulate the pressure fluid supply to the control motor in response to movement of the cams. The shapes, dimensions and positions of the cams are such that, with the shaft at the limit of its rotary motion, all the valves are closed, and only the valve that corresponds to the axial position of the shaft can be opened.
FR7800216A 1978-01-05 1978-01-05 Gearbox with main gear and two-branch group gear - is operated by hydraulic or pneumatic control motor regulated via valves by cam tracks carried by gear selector shaft Granted FR2414156A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7800216A FR2414156A1 (en) 1978-01-05 1978-01-05 Gearbox with main gear and two-branch group gear - is operated by hydraulic or pneumatic control motor regulated via valves by cam tracks carried by gear selector shaft

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7800216A FR2414156A1 (en) 1978-01-05 1978-01-05 Gearbox with main gear and two-branch group gear - is operated by hydraulic or pneumatic control motor regulated via valves by cam tracks carried by gear selector shaft

Publications (2)

Publication Number Publication Date
FR2414156A1 true FR2414156A1 (en) 1979-08-03
FR2414156B1 FR2414156B1 (en) 1983-12-16

Family

ID=9203152

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7800216A Granted FR2414156A1 (en) 1978-01-05 1978-01-05 Gearbox with main gear and two-branch group gear - is operated by hydraulic or pneumatic control motor regulated via valves by cam tracks carried by gear selector shaft

Country Status (1)

Country Link
FR (1) FR2414156A1 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0025198A2 (en) * 1979-09-10 1981-03-18 International Harvester Company Switching device for toothed gear-change boxes in group drive arrangement for motor vehicles
FR2473665A1 (en) * 1980-01-09 1981-07-17 Zahnradfabrik Friedrichshafen SPEED CONTROL DEVICE FOR A GEARBOX COMPRISING RELAY GROUPS

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0025198A2 (en) * 1979-09-10 1981-03-18 International Harvester Company Switching device for toothed gear-change boxes in group drive arrangement for motor vehicles
DE2936527A1 (en) * 1979-09-10 1981-03-19 International Harvester Company Mbh, 4040 Neuss SHIFTING DEVICE FOR GEAR-GEARS IN A GROUP DESIGN FOR MOTOR VEHICLES, ESPECIALLY FOR ARM TRACTORS
EP0025198B1 (en) * 1979-09-10 1983-05-11 International Harvester Company Switching device for toothed gear-change boxes in group drive arrangement for motor vehicles
FR2473665A1 (en) * 1980-01-09 1981-07-17 Zahnradfabrik Friedrichshafen SPEED CONTROL DEVICE FOR A GEARBOX COMPRISING RELAY GROUPS

Also Published As

Publication number Publication date
FR2414156B1 (en) 1983-12-16

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Legal Events

Date Code Title Description
ST Notification of lapse