A cellar-type transplanting hole forming mechanism

Abstract

The invention discloses a cellar-type transplanting hole-forming mechanism, which includes a hole-forming frame body, and two non-circular gear mechanisms with the same structure are installed on the hole-forming frame body, and the two non-circular gear mechanisms move along the hole-forming frame body The direction is arranged side by side, and there is a power transmission mechanism between the two non-circular gear mechanisms; the output ends of the two non-circular gear mechanisms are respectively fixedly connected with a cavity-forming crank, the two cavity-forming cranks are arranged in parallel, and the tops of the two cavity-forming cranks are respectively fixed and installed Crank connection shafts, horizontally arranged cavitation connecting rods are hinged between the two crank connection shafts, and two bevel gear commutators respectively corresponding to the two crank connection shafts are fixedly installed at the bottom of the cavitation connection rods, each bevel gear commutator There is a spur gear mechanism for transmission between the input shaft and the corresponding crank connecting shaft, the output shaft of each bevel gear commutator is set vertically downward, and the bottom end is fixed with a vertically downwardly set cavitation device; the design of the invention is reasonable , It can form an approximately cylindrical well cellar with regular shape, which is used to meet the requirements of heat preservation and moisture retention of the well cellar.

Description

technical field [0001] The invention belongs to the technical field of agricultural machinery, and in particular relates to a cellar-type transplanting hole forming mechanism. Background technique [0002] Well-pit transplanting is based on the "Darcy's Law" of hydraulics. Before transplanting, a circular well pit with a diameter of 6-8cm, a depth of 18-20cm, and a relatively uniform upper and lower diameter is formed in the soil, and then the crop seedlings Planted in the well cellar. With the change of external temperature and humidity, the hydraulic gradient produced by the well pit will make the soil moisture in the well pit evaporate or condense, so as to maintain the relative stability of the temperature and humidity in the well pit, and provide a suitable temperature, humidity and nutrition for the growth of crop seedlings surroundings. Through the pit-type transplanting, the cultivation of strong seedlings and timely early planting are completed in the pit at the s...

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Problems solved by technology

[0003] The traditional hole forming method is mainly artificial hole forming. Although this kind of hole forming method can meet the agronomic requirements of well cellar transplanting, due to the high labor intensity and low efficiency of artificial hole forming method, the quality of hole forming cannot be guaranteed during continuous operation. ; In order to improve the efficiency of cavitation, the current mechanized cavitation operation mode is adopted, and the cavitation mechanism is installed on the walking device to realize cavitation while walking. It is impossible to completely offset the working speed of the walking device, and the final shape of the well cellar formed is a "trumpet" shaped well cellar with a larger upper opening and a smaller lower opening, which seriously affects the effect of heat preservation and moisture retention in the well cellar; The depth of the pit and the requirements for forming a circular well pit with relatively uniform upper and lower diameters. Another solution is to keep the walking device stationary when the cavitation machine forms a cave. Caves are formed intermittently by cycle start and stop. Although this method of forming holes can meet the requirements of forming a well cellar, the efficiency of cavitation is still low due to intermittent pauses, and the impact caused by intermittent pauses also reduces the reliability of the machine tool.

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