| 摘要 |
<p>Disclosed is an upper transmission system of engineering machinery. The upper transmission system comprises an upper engine (1), a clutch (2), and a transfer case (3); the clutch (2) is installed on a rear end surface of a flywheel (11) of the upper engine (1), and a power input shaft of the transfer case (3) is connected to the clutch (2) by means of driving; when the upper transmission system is used, in a severely cold environment, if it is difficult to start the upper engine (1), the clutch (2) may be operated to separate from the upper engine (1), to disconnect the upper engine (1) from the transfer case (3), so that the upper engine (1) disengages from loads such as the transfer case (3). In this way, start-up resistance of the upper engine (1) can be reduced, so that the upper engine (1) is started in time and normally. After the upper engine (1) is started, the clutch (2) can be operated to be combined with the upper engine (1), so that the upper engine (1) transmits power to components such as the transfer case (3), to implement normal operation of the whole machine. Also disclosed is engineering machinery having the upper transmission system.</p> |
