| 摘要 |
<p>The present invention is to provide a transmission gearbox comprising a gearshift shifting mechanism formed by a gearshift hub (45), a first push rod (441), a second push rod (442), a first sliding block (434) and a second sliding block (422) to transfer engine driving force from a driven shaft (41) through a linking shaft (42) and/or a main shaft (43) to an output shaft (62), wherein the first sliding block is slidably mounted on the main shaft; the main shaft has mounted thereon a first forward gear (433), a first low-range gear (432), and a transmission gear (431); the second sliding block is slidably mounted on the linking shaft; the linking shaft has mounted thereon a back gear (421) a second low-range gear (424), a second forward gear (425), and a</p> |
