手扶拖拉机行驶时,不仅受到由于地面不平度引起的振动影响,还受到比较严重的发动机振动的影响。手扶拖拉机大都是单缸机,这种发动机平衡差,产生的振动比较大。手扶拖拉机不仅存在座位振动对人的影响,还存在手把振动的影响。手把振动和座位振动一样,都会影响工作效率,严重的也会危害人的健康。驾驶员长期操作振动较大的手把,会引起手臂或手指上血管、神经及 Walking tractor driving, not only due to ground roughness caused by the impact of the vibration, but also by the more serious engine vibration. Walking tractors are mostly single-cylinder machine, the poor balance of this engine, resulting in greater vibration. Walking tractors not only exist on the impact of seat vibration, there are hand the impact of vibration. Hand vibration and seat vibration, as will affect the efficiency of work, will seriously endanger human health. Long-term operation of the driver vibration larger handle, will cause the arm or finger on the blood vessels, nerves and