Air power collecting and discharging type precision seed sowing device

The technology of a cluster type and seed metering device is applied in the field of agricultural machinery, which can solve the problems of high requirements on processing accuracy, inability to realize wide-width operation, and the need for a double fan system, so as to improve the probability of seed filling and the performance of seed filling is stable and reliable. , the effect of improving the quality and stability of sowing

CN103004338AInactive Publication Date: 2013-04-03CHINA AGRI UNIV
7 Cites 25 Cited by

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Publication Date
2013-04-03
Estimated Expiration
Not applicable · inactive patent

Smart Images

  • Figure 1
    Figure 1
  • Figure 2
    Figure 2
  • Figure 3
    Figure 3
Patent Text Reader

Abstract

The invention relates to an air power collecting and discharging type precision seed sowing device, which is characterized by comprising a shell, a sealing cover plate, a seed sowing roller, a pressure relief wheel, a seed bed screen, a seed cleaning shifting finger, a seed guiding pipe, an impurity collecting plate and a seed stopping plate, wherein the shell is connected with the sealing cover plate by virtue of bolts, the seed sowing roller is arranged in the shell to form an operation air chamber, an air supply chamber and a seed chamber, the seed chamber is internally provided with an air supply pipe, the seed bed screen is arranged at a critical position of the air supply chamber and the operation air chamber, and the air supply chamber provides air flow for the operation air chamber by virtue of the seed bed screen and the air supply pipe; the seed cleaning shifting finger is arranged in the operation air chamber, is close to the roller in a gap and is in an L shape, a shorter side of the seed cleaning shifting finger is in a right trapezoid shape, and relative position between a bevelled edge of the trapezoid and a seed attaching hole can be adjusted by virtue of a seed cleaning shaft fixedly connected with the shorter side; the pressure relief wheel is arranged inside the seed sowing roller and is close to the interior of the roller by virtue of a tension spring; and the inlet of the seed guiding pipe is close to the roller in the gap and is dead against a contact point of the pressure relief wheel and the roller. The precision seed sowing device realizes centralized precision seed sowing, seed attaching pressure difference and a seed sending air flow are provided by virtue of a positive pressure system, a seed layer is disturbed by utilizing the air flow, and seed filling probability is improved. The precision seed sowing device is applicable to precision seed sowing of large-row-spacing crops such as corn and soybean.
Need to check novelty before this filing date? Find Prior Art

Description

technical field

[0001] The invention relates to a seed metering device in the field of agricultural machinery, in particular to a pneumatic collection and row type precision seed metering device. Background technique

[0002] Most of the current precision seed metering devices are "one device and one line". The structure of the seeder is bloated, and the adjustment in the field is cumbersome. Moreover, the seed metering device and the ditching soil covering device are fixed to the profiling mechanism, and the seed metering device vibrates greatly, which affects the work. stability. The collection and row seed metering device can realize "one device with multiple rows". The seeder has a compact structure, high seeding efficiency, convenient field adjustment, and meets the requirements of high-speed and wide-width operations. It is an advanced seeding method. At present, most of the pneumatic seed metering devices are air-flow seed drills, which cannot achieve precise sowing....

Examples

Embodiment Construction

[0020] The present invention will be described in detail below in conjunction with the embodiment (4-row pneumatic collection and row precision metering device) and accompanying drawings.

[0021] like Figure 1~6 As shown, the present invention includes a housing 10, a sealing cover plate 20, a seeding cylinder 30, a pressure relief wheel 40, a seed bed screen 50, a seed clearing finger 60, a seed guide tube 70, a miscellaneous plate 80 and a seed retaining plate 90. The right side of the housing 10 is fixed with the sealing cover 20 by bolts, and the two ends of the seeding cylinder 30 are respectively closely attached to the left side of the housing 10 and the sealing cover 20 to form a working air chamber 100. The pressure relief wheel 40 is arranged on the row In the seed drum 30 , the seed bed screen 50 , the clearing finger 60 , the seed guide pipe 70 , the miscellaneous plate 80 , and the seed retaining plate 90 are arranged in the working air chamber 100 .

[0022] ...