Centrifugal needle-type air suction seed discharge device
A technology of centrifugal needle type and seed metering device, which is applied in the direction of seeder parts, etc., can solve the problems of increased seed jams, seed jams, and reduced seeding quality, and achieve the effects of good operation quality, novel structure, and low missed seeding rate
Active Publication Date: 2019-08-06
黑龙江省双福机械有限公司
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Problems solved by technology
In the practice of production operation, it was found that after the negative pressure of the air flow is cut off, the seeds are sorted by the weight of the seeds, and the phenomenon of seed jams that cannot be discharged often occurs, the rate of missed seeding increases, and the quality of seeding decreases. The number of phenomena will increase, and the rate of missed broadcasts is on the rise
Method used
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Embodiment Construction
[0011] Embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings. A centrifugal needle type air suction seed metering device includes a seed box 11, a drive shaft 3 and a follower shaft 9 that are parallel to each other and rotatable in sequence from top to bottom above the seed box 11, and on the drive shaft 3 Fixed drive sprocket A1 and drive sprocket B2, sprocket type drive sleeve 14 is fixed on the follower shaft 9, sprocket type needle seat 13 is rotatably set on the follower shaft 9, and chain A15 is set on the drive shaft 9. On the sprocket A1 and the sprocket type driving sleeve 14, the chain B4 is set on the driving sprocket B2 and the sprocket type needle seat 13, and a negative pressure air passage 8 is arranged on the axial center position of the follower shaft 9, and the chain B4 A plurality of seed-absorbing needles 12 are installed sequentially and uniformly on the wheel-type needle holder 13 along the c...
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The invention discloses a centrifugal needle-type air suction seed discharge device, and belongs to agricultural machines. A driving shaft and a follow-up shaft are assembled on a seed box, driving chain wheels A and B are fixedly installed on the driving shaft, a chain wheel type driving sleeve is fixedly installed on the follow-up shaft, a chain wheel type needle base rotatably sleeves the follow-up shaft, a chain A connects the driving chain wheel A with the chain wheel type driving sleeve, a chain B connects the driving chain wheel B with the chain wheel type needle base, a negative pressure air path is arranged on the follow-up shaft, a plurality of seed suction needles are installed on the chain wheel type needle base, a flexible seed protection belt with notches wraps the outer sides of the circumferences of the seed suction needles, the flexible seed protection belt is supported by belt rollers I, II, III, IV and V, the belt roller I is a driving roller, and gas nozzles and seed guide pipes are arranged at the notches of the flexible seed protection belt. According to the device, the combined action of seed gravity, rotary centrifugal force and airflow blowing force is adopted to discharge seeds from the seed suction needles, and the seed discharge operation of the air suction seed discharge device is completed; the device has the advantages of realizing reliable seed discharge, having a low missed seeding rate and few operation faults, and being compact and reasonable in structure.
Description
technical field [0001] The invention belongs to agricultural machinery and mainly relates to an air suction seed metering device. Background technique [0002] Most of the current air-suction seed metering devices use negative pressure suction cups to complete the suction and discharge operations of seeds. This type of air-suction seed metering device not only has the defect of large structural size, especially in the seeding process of cutting off the negative pressure suction of the airflow, it can only rely on the self-weight of the seeds to remove the seeds adsorbed on the air holes of the negative pressure air plate from the sucker. discharge from the hole. In the practice of production operation, it is found that after the negative pressure of the air flow is cut off, the seeds are sorted by the weight of the seeds, and the phenomenon of seed jams that cannot be discharged often occurs, the rate of missed seeding increases, and the quality of seeding decreases. This ...
Claims
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Login to View More IPC IPC(8): A01C7/20
CPCA01C7/20
Inventor 唐汉王金武姜业明徐常塑崔涛廖宜涛
Owner 黑龙江省双福机械有限公司