A kind of double cavity mechanical seed metering device

A kind of seed metering device and mechanical technology, which is applied in the direction of seeder parts, etc., can solve the problems of high seed damage rate, seed filling, seed protection, difficulty in clearing seeds, and poor effect, so as to achieve less seed stockpiling and improve seeding stability The effect of increasing the volume of the seed cavity

CN104255142BActive Publication Date: 2016-02-24HUAZHONG AGRI UNIV
5 Cites 0 Cited by

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Publication Date
2016-02-24

Smart Images

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

Abstract

The invention discloses a mechanical type dual-cavity seeding apparatus. Two cavities are bilaterally symmetric. The mechanical type dual-cavity seeding apparatus comprises a seed box, shells, a seed feeding pipe, a seed charging nozzle, a left overturning type seed discharging cover, a right overturning type seed discharging cover, a left seed separating hairbrush, a right seed separating hairbrush, a seed discharging disc and a seed discharging shaft. A groove of the seed discharging disc, wall surfaces of the left shell and the right shell, the left seed separating hairbrush and the right seed separating hairbrush form a left seed filling cavity and a right seed filling cavity which are communicated with the seed feeding pipe, holes are formed in disc surfaces of two sides of the seed discharging disc, a left arc-shaped seed removing and protecting plate and a right arc-shaped seed removing and protecting plate as well as the left seed separating hairbrush and the right seed separating hairbrush are arranged on the inner sides of the left shell and the right shell, the left seed separating hairbrush and the right seed separating hairbrush prevent seeds from directly entering the seed charging nozzle from the left seed filling cavity and the right seed filling cavity, an upper end opening of the seed charging nozzle is aligned to the holes in the seed discharging disc, and seeds are filled in the holes along with the rotation of the seed discharging disc in a seed filling region, and then enter a seed removing region and a seed protecting region to complete seed removing and seed protecting, and finally enter a seed charging region to complete seed filling. The mechanical type dual-cavity seeding apparatus is novel in structure; by adopting a manner of filling the seeds, protecting the seeds and discharging seeds on the side edge of a dual-cavity vertical disc, the mechanical type dual-cavity seeding apparatus is compact in structure, capable of achieving precise and less hole sowing, and adjustable in row spacing.
Need to check novelty before this filing date? Find Prior Art

Description

technical field

[0001] The invention relates to the technical field of sowing machinery in agricultural machinery, in particular to a double-cavity mechanical seed metering device, which is suitable for precision sowing of approximately round seeds such as cotton, beans, corn, or irregularly shaped seeds such as rice and wheat . Background technique

[0002] The seed meter is the core component of the seeder, and its working quality directly affects the overall performance of the seeder. Existing seed metering devices can be mainly divided into two categories: mechanical type and pneumatic type. Pneumatic seed metering devices have no strict requirements on seed size and shape, strong adaptability, and little damage to seeds, but the structure is complex; mechanical seed metering devices have strict requirements on seed size, low seed metering accuracy, and serious damage to seeds. It is difficult to achieve high-speed operation, but the structure is simple, the manufactur...

Examples

Embodiment 1

[0044] like figure 1 and figure 2 As shown, a kind of double-cavity mechanical seed metering device of the present invention is left and right symmetrical, and on the left and right housings 18 and 12 of the seed metering device, left and right arc-shaped seed clearing and protecting plates 17 and 22 are fixed by bolts And left and right every kind of hairbrush 21 and 9, every kind of hairbrush separates the filling district in the filling chamber 24 with the district of throwing seeds. Seeds enter the hole 101 in the seed filling area with the disturbance of the seeding disc 10, and then enter the seed clearing and protecting area. The seeding area completes the seeding process.

[0045] A double-cavity mechanical seed metering device, comprising a seed box 1, a right arc-shaped seed clearing and protecting plate 2, a left arc-shaped seed clearing and protecting plate 17, an intermediate housing 3, a right-turning seed unloading cover 7, a left-turning Type unloading cove...