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为了适应目前农村多种经营的需要,提高现有机器的性能,我们厂针对东风—12型手扶拖拉机存在的问题,进行了如下改进。 1.增加整机配重铁,提高了牵引力。东风—12型手扶拖拉机原设计没有配重铁,运输作业时,由于主机结构重量较轻(只有340公斤),常会在上坡,特别是上陡坡时出现轮胎打滑现象。这不但影响了拖拉机的装载量,而且还加速了轮胎的磨损。为了解决这一问题,我们在两驱动轮的外侧各增加了两块配重块,其中一块20公斤,另一块7.25公斤。当4块配重块同时装到主机上时,整机驱动轮可增加正压力54.5公斤力,若按橡胶轮胎在沙石路面上
In order to meet the current needs of a variety of business operations in rural areas, improve the performance of existing machines, our factory for Dongfeng -12 walking tractor problems, made the following improvements. 1. Increase the machine with heavy iron, increased traction. Dongfeng -12 tractor was originally designed without heavy iron, transport operations, due to the lighter host structure (only 340 kg), often in the uphill, especially on the steep slope tire slip phenomenon. This not only affects the tractor load, but also accelerates tire wear. In order to solve this problem, we added two counterweights on the outer sides of the two driving wheels, one of which is 20kg and the other is 7.25kg. When the 4 weights at the same time installed on the host machine, the whole drive wheel can increase the positive pressure of 54.5 kg force, if by rubber tires on the gravel road