| Project/Area Number |
60460216
|
|---|
| Research Category |
Grant-in-Aid for General Scientific Research (B)
|
| Allocation Type | Single-year Grants |
|---|
| Research Field |
農業機械
|
|---|
| Research Institution | Kyushu University |
|---|
Principal Investigator |
HASHIGUCHI Koichi Kyushu University, 農学部, 助教授 (10038250)
|
|---|
| Co-Investigator(Kenkyū-buntansha) |
YAMANAKA Shoichiro Kyushu University, 農学部, 助手 (20038251)
SAKAI Jun Kyushu University, 農学部, 教授 (70024536)
|
|---|
| Project Period (FY) |
1985 – 1986
|
| Project Status |
Completed (Fiscal Year 1986)
|
| Budget Amount *help |
¥5,200,000 (Direct Cost: ¥5,200,000)
Fiscal Year 1986: ¥800,000 (Direct Cost: ¥800,000)
Fiscal Year 1985: ¥4,400,000 (Direct Cost: ¥4,400,000)
|
|---|
| Keywords | Tillage / Rotary / Feedback / Transmission Efficiency / 伝達効率 |
|---|
| Research Abstract |
The power transmission system from an engine to a rotary tillage axle is regarded to be a closed-loop system including a feedback power through a driving wheel axle. The results obtained from theoretical analysis and soil bin tests are as follows:
1) Equations for predictions of feedback- and return-powers and a travelling power from a rotary tillage resistance were derived.
2) The power transmission efficiency from an engine to a rotary axle was formulated.
3) In order to verify the applicabilities of these equations and clarify actual values of rotary tillage resistance, the measurement system for a rotary tillage resistance, the engine power and wheel powers was made. Soil bin test was performed by use of this system.
4) According to the test results, the direction of rotary tillage resistance was 30-60deg. from the forward direction. The tillage power return and feedback ratios, and the engine-rotary power transmission efficiency were 0.07-0.11, 0.02-0.04, 0.92-0.97, 0.2-0.4 and about 90%, which were well approximated by the equations formulated above.
|
