Research And Design Of The Front-mounted Haybine

Along with the adjustment of the agricultural structure and the implementation of conversion of cropland to forest and grassland ecosystem engineering, the plant area of the superior quality herbage is ever increasing. Currently, it is statisticed that there are 17,333,000 hm2 natural herbage farms in Gansu Province and 533,000 hm2 medicago sative L. which is at the top of our country among them. Most of the herbage farms are medium or mini-sized at the clover produce at present, the production scale is partial to small, the degree of mechanization is low. The herbage harvesting equipment was mainly discal mower without flattenning device and manual harvesting was also used. This not only causes the low work efficiency, high cost and the labor intensity in twice or three times each year, but also wastes a great deal of manpower and material resources, more important that it prolongs dehydrate times of the medicago and results in great protein losing and bad clover product quantity. The imported machine technique is perfect and the function is credible, but the price is expensive, the producing organization requests high and the kit function is bad with the domestic machine. It can't adapt to the demand for medium small scale clover produce.Base on this, a research program was established which developed a medium haybine which can not only cut grass in high-speed, with widespread kit motive but also flatten in time and adapt the demand for medium small scale clover produce. It's main characteristics are: the haybine was placed right ahead on the medium tractor; the eccentric reel stir the clover to the stand and push to the compression roller in time; the toothed chain-cutter was adopted which has many strong points ,such as configuration compact, motivate transmission simple, high productivity and low cost; it adopted the cheveron compression roller which can flatten clover and have the function of the grab which can raise the compression result.The paper fully applied method of machine design and machine principles to design individual parts on the front-mounted haybine, and perform load analyzing and strength evaluation on the mainly shafts and the wheel gears. Then the software of AutoCAD 2004 and CAXA were used to complete the whole series drawings for the machine.