Title:
DRIVE CONTROL MECHANISM FOR WORK PART OF WORK VEHICLE
Document Type and Number:
Japanese Patent JP2015086995
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To resolve the problems found in a work vehicle such as a rice transplanter that it is necessary to additionally arrange a transmission device between a running part and a work part when the work part requires several stages of transmission power force and further when the vehicle shows slippage during running, the work is carried out at a high speed before reduction state of actual vehicle speed irrespective of the fact that the actual vehicle speed is decreased.SOLUTION: A hydraulic pump 80 of a running part 2 and a hydraulic motor 81 of a planting part 3 are connected in fluid by an external pipe 89, there is provided a PTO hydraulic infinite transmission device 20 for transmitting infinite work motive power from the running part 2 to the planting part 3 under an inclining operation of a movable slant plate 80a of the hydraulic pump 80, and further, an estimated vehicle speed Ve estimated from the first rotational speed R1 of the running power force is compared with an actual vehicle speed Vr calculated in reference to motion information obtained from a GPS sensor 93 by a controller 94. If the actual vehicle speed Vr is different from the estimated vehicle speed Ve, the inclination angle of the movable slant plate 80a is changed, and the second rotational speed R2 outputted from the hydraulic motor 81 can be adjusted to an appropriate rotational speed Rp suitable for performing the planting work.
Inventors:
INOUE MASAAKI
Application Number:
JP2013228425A
Publication Date:
May 07, 2015
Filing Date:
November 01, 2013
Export Citation:
Assignee:
KANZAKI KOKYUKOKI MFG CO LTD
International Classes:
F16H61/425; F16H61/02
Attorney, Agent or Firm:
Juichiro Yano