JPS6456279A - Change gear and steering system - Google Patents

Change gear and steering system

Info

Publication number
JPS6456279A
JPS6456279A JP20938087A JP20938087A JPS6456279A JP S6456279 A JPS6456279 A JP S6456279A JP 20938087 A JP20938087 A JP 20938087A JP 20938087 A JP20938087 A JP 20938087A JP S6456279 A JPS6456279 A JP S6456279A
Authority
JP
Japan
Prior art keywords
speed
hydraulic
going
varied
ratio
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.)
Pending
Application number
JP20938087A
Other languages
Japanese (ja)
Inventor
Ryoichi Maruyama
Eiki Yamada
Tsutomu Ishino
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.)
Komatsu Ltd
Original Assignee
Komatsu Ltd
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 Komatsu Ltd filed Critical Komatsu Ltd
Priority to JP20938087A priority Critical patent/JPS6456279A/en
Publication of JPS6456279A publication Critical patent/JPS6456279A/en
Pending legal-status Critical Current

Links

Abstract

PURPOSE:To obtain continuously variable transmission traveling with a wide speed range for both going-forward and going-afterward by combining a non- stage transmission and a mechanical transmission and connecting a clutch through switching of a going-forward/afterward change-over device. CONSTITUTION:When only the first-speed clutch is connected, a planetary gear 12c, the third speed gear 231 and 24 of the third speed epicyclic gear 12 in addition to a planetary gears 9c, 8c, and 11c of the second speed epicyclic gear 9 are fixed. Right and left hydraulic pumps 4 and 5 are of the variable- volume hydraulic pump, while right and left hydraulic motors 6 and 7 are of the fixed type hydraulic motor. Therefore, the ratio of the volume of the hydraulic pump to that of the hydraulic motor can be varied within the predetermined range. Accordingly, the ratio of the revolving speed of the hydraulic motor to that of the hydraulic pump can also be varied. As a result, the revolving speed of gears 21 and 22 can also be varied. With this contrivance, one can obtain continuously variable transmission traveling of a vehicle by, for example, connecting only the first speed clutch 14 and varying the revolving speed ratio of the hydraulic motors 6 and 7.
JP20938087A 1987-08-25 1987-08-25 Change gear and steering system Pending JPS6456279A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP20938087A JPS6456279A (en) 1987-08-25 1987-08-25 Change gear and steering system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP20938087A JPS6456279A (en) 1987-08-25 1987-08-25 Change gear and steering system

Publications (1)

Publication Number Publication Date
JPS6456279A true JPS6456279A (en) 1989-03-03

Family

ID=16571957

Family Applications (1)

Application Number Title Priority Date Filing Date
JP20938087A Pending JPS6456279A (en) 1987-08-25 1987-08-25 Change gear and steering system

Country Status (1)

Country Link
JP (1) JPS6456279A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5466197A (en) * 1990-11-30 1995-11-14 Kabushiki Kaisha Komatsu Seisakusho Mechanical-hydraulic transmission
WO1998051523A1 (en) * 1997-05-14 1998-11-19 Yanmar Agricultural Equipment Co., Ltd. Drive unit for crawler working vehicles
US8711885B1 (en) * 1981-11-03 2014-04-29 Personalized Media Communications LLC Signal processing apparatus and methods

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8711885B1 (en) * 1981-11-03 2014-04-29 Personalized Media Communications LLC Signal processing apparatus and methods
US5466197A (en) * 1990-11-30 1995-11-14 Kabushiki Kaisha Komatsu Seisakusho Mechanical-hydraulic transmission
WO1998051523A1 (en) * 1997-05-14 1998-11-19 Yanmar Agricultural Equipment Co., Ltd. Drive unit for crawler working vehicles
US6336886B1 (en) 1997-05-14 2002-01-08 Yanmar Agricultural Equipment Co. Drive unit for crawler working vehicles

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