(1)4S-85 garlic harvester The garlic excavator developed by Xuzhou Agricultural Machinery Technology Extension Station passed the appraisal of scientific and technological achievements in Jiangsu Province and obtained the invention patent. When this machine is used with Dongfeng-12 walking tractor, it can complete a variety of operations such as breaking ground, breaking stones, cutting roots and screening strips at one time. Suitable for plots with water content less than 30%, such as sandy soil and sandy loam. Advanced structure, convenient installation, simple operation, high efficiency, 40 times that of manual operation, and the damage rate is reduced by more than 70% compared with manual harvesting, and it is operated once every 667㎡. Its main technical performance indicators are: excavation depth is 5 ~ 12 cm, working width is 60 ~ 85 cm, breakage rate is ≤2%, garlic rate is ≥95%, and working efficiency is 667 ~ 1334 m2 per hour. (2) 4DS-75A garlic harvester was jointly developed by Shandong Agricultural Machinery Science and Technology Research Institute and Shandong Yutai Agricultural Ring Factory. This machine can be used with11.0 ~13.2 kw small wheeled tractor to complete garlic harvesting. The digging and harvesting device of this machine is located at the front of the tractor. The whole machine is divided into four parts: excavation work part, transverse conveying part, rear conveying part and lifting part. Its working efficiency is 467 ~ 667 m2/h, the net yield is more than 99%, and the crushing rate is less than 65438 0%. (3)4HS-700 peanut and garlic harvester was developed by Kejian Agricultural Machinery Research Institute in Laixi City, Qingdao, and all technical indexes can meet the agronomic requirements of peanut and garlic harvesting. This machine is matched with a four-wheeled tractor with output power of 13.2 ~ 2 1.3 kW. No matter shaking soil or laying, it can achieve good garlic harvest effect without damaging garlic. Its harvest efficiency is 60 times that of manual harvest, the harvest range is 70 cm, the fruit burying rate is less than 3%, and the fruit breaking rate is less than1%. (4)XC- 168 Garlic Harvester is produced by Shandong Xinchun Technology Co., Ltd. ... The structure of this machine is unique, the blades are horizontal propellers, and the harvesting efficiency is high. A person can harvest 2 ~ 3.33 hectares of garlic every day. Good working quality, hydraulic control depth, no restriction of row spacing, no garlic injury, no entanglement and no blockage, and suitable for all kinds of soils. (5)TL-VS 120 garlic harvester Xinjiang Tailong Machinery Factory was successfully developed. According to the calculation of 10 hour per day, this machine can harvest 2 ~ 2.67 hectares of garlic, while the artificial harvest is only 333.5 m2 per person per day. Its blade is a horizontal propeller type, the working width is generally 120cm, and the excavation depth is 15 ~ 30cm. The depth is controlled by hydraulic pressure, which is not limited by row spacing, does not hurt garlic, entangle or block, and is suitable for all kinds of soil. (6)4S-60 garlic harvester is a new type of agricultural machinery jointly developed by Jiangsu Agricultural Machinery Development and Application Center and Xuzhou Agricultural Machinery Technology Extension Station. It is installed at the front end of Dongfeng-12 walking tractor, and can complete garlic excavation, separation, transportation and paving at one time. The machine is not limited by the planting distance of garlic, and can be used for flat cultivation and ridge cultivation, and does not affect the seedling height and seedling height. Suitable for garlic fields with and without plastic film, and suitable for garlic fields such as sandy soil, loam and medium clay with water content of about 15% ~ 25%. Its supporting power is 8.8 kW walking tractor, the working width is 60 cm, the working depth is 7 ~ 15 cm, the garlic exposure rate is ≥95%, the breakage rate is ≤2%, and the productivity is 667 ~ 1334 m2. (7)TF-VS Series Rhizome Crops Harvester Liaoning Agricultural Mechanization Research Institute cooperated with an agricultural machinery research unit in Korea to develop and produce new agricultural machinery products with international advanced level by adopting Korean technology. This machine is mainly used for harvesting garlic, and can also be used for harvesting root crops such as peanuts, onions, carrots, sweet potatoes and potatoes. It has the characteristics of wide application range, good working performance, simple operation and maintenance, high product reliability and so on. In the design of the harvester, the power transmission system adopts the special transmission mode of "eccentric rotation and center separation", and uses asynchronous vibrating screen (rake) to separate root crops from soil, which not only enhances the harvesting effect and improves the recovery rate, but also greatly reduces the power consumption during operation, saves energy, reduces production cost and reduces environmental pollution. The machine adopts triple rotary tunneling, and the harvester blade adopts new materials and unique heat treatment technology, which is durable and can be used for working in solid soil. This series of machine tools has three specifications: TF-VS 136, TF-VS 166 and TF-VS 196. The weight of the whole machine is between 445 and 490 kg, the input shaft speed is 450 rpm, the supporting power is between 2 1.9-36.5 kW, and the excavation depth is deep. It is connected with the tractor in a three-point connection mode. The working width, the digging depth, the vibration frequency of the separating rake and the angle of the blade can be adjusted according to the actual situation, and the operation is very simple.