US 11,897,327 B2
Transmission of agricultural work vehicle
Jung Su Han, Anyang-si (KR); Ki Taeg Lee, Anyang-si (KR); Won Woo Park, Anyang-si (KR); Ji Hun Yu, Anyang-si (KR); Taek Seong Kim, Anyang-si (KR); and Young-Gyu Lee, Anyang-si (KR)
Assigned to LS MTRON LTD., Anyang-si (KR)
Appl. No. 17/274,711
Filed by LS MTRON LTD., Anyang-si (KR)
PCT Filed Aug. 21, 2019, PCT No. PCT/KR2019/010627
§ 371(c)(1), (2) Date Mar. 9, 2021,
PCT Pub. No. WO2020/060043, PCT Pub. Date Mar. 26, 2020.
Claims priority of application No. 10-2018-0111812 (KR), filed on Sep. 18, 2018; and application No. 10-2018-0111815 (KR), filed on Sep. 18, 2018.
Prior Publication US 2021/0347255 A1, Nov. 11, 2021
Int. Cl. B60K 17/08 (2006.01); B60K 17/02 (2006.01); F16H 3/00 (2006.01); F16D 13/52 (2006.01)
CPC B60K 17/08 (2013.01) [B60K 17/02 (2013.01); F16D 13/52 (2013.01)] 14 Claims
OG exemplary drawing
 
1. A transmission of an agricultural working vehicle, the transmission comprising:
a preceding transmission portion configured to perform shifting with respect to driving transmitted from an engine of the agricultural working vehicle;
a clutch portion connected to the preceding transmission portion to selectively output driving transmitted from the preceding transmission portion;
an adjustment portion connected to the clutch portion to perform shifting with respect to driving transmitted from the clutch portion; and
a succeeding transmission portion connected to the adjustment portion to perform shifting with respect to driving transmitted from the adjustment portion,
wherein the preceding transmission portion comprises a first preceding transmission unit configured to perform shifting with respect to the driving transmitted from the engine and a second preceding transmission unit configured to perform shifting with respect to the driving transmitted from the engine,
wherein the clutch portion comprises a first clutch unit connected to the first preceding transmission unit to selectively output driving transmitted from the first preceding transmission unit and a second clutch unit connected to the second preceding transmission unit to selectively output driving transmitted from the second preceding transmission unit,
wherein the adjustment portion comprises a first adjustment unit connected to the first clutch unit to perform shifting with respect to the driving transmitted from the first clutch unit using a gear ratio and a second adjustment unit connected to the second clutch unit to perform shifting with respect to the driving transmitted from the second clutch unit using a gear ratio different from that of the first adjustment unit, and
wherein the succeeding transmission portion comprises a first succeeding transmission unit connected to the first adjustment unit to perform shifting with respect to driving transmitted from the first adjustment unit and a second succeeding transmission unit connected to the second adjustment unit to perform shifting with respect to driving transmitted from the second adjustment unit,
wherein the first preceding transmission unit comprises a first preceding transmission shaft and a first preceding transmission gear which is coupled to the first preceding transmission shaft to be idly rotatable in order to rotate due to the driving transmitted from the engine,
wherein the second preceding transmission unit comprises a second preceding transmission shaft and a second preceding transmission gear which is coupled to the second preceding transmission shaft to be idly rotatable in order to rotate due to the driving transmitted from the engine,
wherein the first clutch unit is coupled to the first preceding transmission shaft, and the second clutch unit is coupled to the second preceding transmission shaft,
wherein the first succeeding transmission unit comprises a first succeeding transmission shaft and a first succeeding transmission gear coupled to the first succeeding transmission shaft to be idly rotatable,
wherein the second succeeding transmission unit comprises a second succeeding transmission shaft and a second succeeding transmission gear coupled to the second succeeding transmission shaft to be idly rotatable,
wherein the first adjustment unit comprises a first adjustment shaft coupled to the first clutch unit, a first adjustment input gear coupled to the first adjustment shaft and a first adjustment output gear engaged non-coaxially with the first adjustment input gear and coupled to the first succeeding transmission shaft of the first succeeding transmission unit,
wherein the second adjustment unit comprises a second adjustment shaft coupled to the second clutch unit, a second adjustment input gear coupled to the second adjustment shaft and a second adjustment output gear engaged non-coaxially with the second adjustment input gear and coupled to the second succeeding transmission shaft of the second succeeding transmission unit, and
wherein a gear ratio of the second adjustment output gear to the second adjustment input gear and a gear ratio of the first adjustment output gear to the first adjustment input gear are different from each other.