CN106489380B - Aspirated-air type low level is vertically charged seed feed mechanism for seed - Google Patents

Abstract

Aspirated-air type low level feed mechanism for seed of vertically charging seed belongs to agricultural machinery；Drive shaft is equipped on fixing sleeve, active disk is fixedly mounted on the driving shaft, eccentric disc and eccentric aspiration disk are packed on fixing sleeve, closing disk is sealed to be mounted on eccentric disc, it is equipped between sealing closing disk and active disk and turns shaft type suction discharging tube, arc air-flow is set on eccentric aspiration disk internal face following side and blocks boss, on eccentric aspiration disk, plants case is equipped at the side-lower position of eccentric aspiration disk, sealing closing disk and active disk, clear kind of hairbrush configuration is at the suction kind mouth of plants case；This device realizes air-suction seeding unit low level, operation of vertically charging seed, the kind grain being discharged by air-suction seeding unit directly row can be broadcast on kind of bed soil earth, seed spout is omitted, has the characteristics that structure novel, simple, reasonable, seeding operation is high-quality, precision is high, service-strong.

Description

Aspirated-air type low level is vertically charged seed feed mechanism for seed

Technical field

The invention belongs to agricultural machinery, relates generally to a kind of air-suction seeding unit.

Background technology

Due to the defect in existing air-suction seeding unit structure design, when being fitted in operation on seeding machinary, aspirated-air type Feed mechanism for seed seeding point is higher, to ensure its seeding operation quality, kind of grain after air-suction seeding unit discharge must by one section compared with It can be just put in kind of bed soil earth after the seed spout conveying of long size, it is not only complicated, but also since kind of grain is in seed spout In transmission process with tube wall it is irregular, collided without control, seeding operation quality do not improved preferably.Therefore design one Kind of aspirated-air type low level is vertically charged seed feed mechanism for seed, very necessary to meet and adapt to precise sowing operation use.

Invention content

The purpose of the invention is aiming at the above-mentioned problems of the prior art, the reality used in conjunction with production operation It needs, the aspirated-air type low level of new construction of R ＆ D design a kind of is vertically charged seed feed mechanism for seed, is reached simplified structure, guarantee and is improved aspiration The purpose of formula feed mechanism for seed seeding operation quality.

What the purpose of the invention was realized in：Drive shaft is rotatably equipped in fixing sleeve, in the driving Concentric on the end of axis to be fixedly mounted with active disk, eccentric disc is packed on fixing sleeve outside, the disk of the eccentric disc The eccentric central point of hole line of central point and eccentric disc configures in vertical direction, is gone up outside the fixing sleeve, is located at bias The eccentric aspiration disk with air entry, the axis of the axial line and eccentric disc of the bias aspiration disk are fixedly mounted at disk side Heart line overlaps, and sealing closing disk is rotatably mounted on eccentric disc circumferential outer surface, the sealing closing disk and eccentric gas It inhales disk sealing cooperation and constitutes aspiration negative pressure chamber, what is reciprocally swung on position between sealing closing disk and active disk matches Dress turns shaft type and inhales discharging tube, and the shaft type suction kind tube axis line that turns configures in vertical direction, turns shaft type and inhales discharging tube and aspiration Negative pressure chamber is connected to, and arc air-flow is arranged on the eccentric aspiration disk internal face side lower part position opposite with sealing closing disk Block boss, the arc air-flow that boss upper end is blocked to be located at eccentric aspiration disk disc centre point horizontal diameter line position On, and be in that the contact sealing cooperation of air-flow or connection the non-contact of air-flow is blocked to open with turning shaft type to inhale the negative pressure aspiration mouth of discharging tube Cooperation is opened, is matched on eccentric aspiration disk, at the side-lower position of eccentric aspiration disk, sealing closing disk and active disk Fill plants case, clear kind of hairbrush be fitted at the suction kind mouth of plants case, it is described turn shaft type and inhale discharging tube and may pass through clear kind of hairbrush be inserted into kind In case, so far constitutes aspirated-air type low level and vertically charge seed feed mechanism for seed.

The invention uses active disk, turns shaft type suction discharging tube, seal cover board, eccentric disc and eccentric aspiration disk Fabricated structure realizes air-suction seeding unit low level, operation of vertically charging seed, and the kind grain that air-suction seeding unit can be discharged is direct Row broadcasts on kind of bed soil earth, and seed spout is omitted, have structure novel, it is simple, rationally, seeding operation is high-quality, precision is high, Service-strong feature.

Description of the drawings

Fig. 1 is that aspirated-air type low level is vertically charged seed feed mechanism for seed overall structure schematic three dimensional views；

Fig. 2 is the sectional view along A-A of Fig. 1；

Fig. 3 is eccentric aspiration disc structure schematic diagram.

Piece number explanation in figure：

1, drive shaft, 2, fixing sleeve, 3, active disk, 4, turn shaft type inhale discharging tube, 5, sealing closing disk, 6, off-centre operation Disk, 7, eccentric aspiration disk, 8, plants case, 9, arc air-flow block boss, 10, clear kind of hairbrush, 11, air entry.

Specific implementation mode

The invention embodiment is described in detail below in conjunction with the accompanying drawings.A kind of vertical row of charging seed of aspirated-air type low level Kind of device is rotatably equipped with drive shaft 1 in fixing sleeve 2, concentric on the end of the drive shaft 1 to be fixedly mounted with active disk 3, eccentric disc 6 is packed on 2 outside of fixing sleeve, in the disc centre point of the eccentric disc 6 and the eccentric orfice of eccentric disc 6 Heart point line configures in vertical direction, goes up outside the fixing sleeve 2, is fixedly mounted with air entry at 6 side of eccentric disc The axial line of 11 eccentric aspiration disk 7, the bias aspiration disk 7 is overlapped with the axial line of eccentric disc 6, seals closing disk 5 are rotatably mounted on 6 circumferential outer surface of eccentric disc, and the sealing closing disk 5 seals cooperation structure with eccentric aspiration disk 7 At aspiration negative pressure chamber, what is reciprocally swung on position between sealing closing disk 5 and active disk 3 equipped turns shaft type suction kind Pipe 4, shaft type suction 4 axial line of discharging tube that turns configure, turn shaft type and inhale discharging tube 4 and company of aspiration negative pressure chamber in vertical direction Logical, setting arc air-flow blocks boss on the eccentric 7 internal face side lower part position opposite with sealing closing disk 5 of aspiration disk 9, the arc air-flow blocks 9 upper end of boss to be located on eccentric 7 disc centre point horizontal diameter line position of aspiration disk, and It is in that the contact sealing cooperation of air-flow or the non-contact unlatching of connection air-flow is blocked to match with turning shaft type to inhale the negative pressure aspiration mouth of discharging tube 4 It closes, matches on eccentric aspiration disk 7, at the side-lower position of eccentric aspiration disk 7, sealing closing disk 5 and active disk 3 Fill plants case 8, clear kind of hairbrush 10 be fitted at the suction kind mouth of plants case 8, it is described turn shaft type and inhale discharging tube 4 and may pass through clear kind of hairbrush 10 insert Enter into plants case 8.

When operation, on fixing sleeve 2, the rotary motion of drive shaft 1 through active disk 3, turn shaft type inhale discharging tube 4 drive it is close It seals closing disk 5 to rotate relative to eccentric aspiration disk 7 on eccentric disc 6, negative-pressure gas makes through air entry 11 by sealing dome The aspiration negative pressure chamber that plate 5 is constituted with eccentric aspiration disk 7 generates negative pressure, when turn shaft type inhale the negative inspiratory pressure mouth of discharging tube 4 with When arc air-flow blocks boss 9 to be detached from cooperation, the shaft type suction discharging tube 4 that turns in plants case 8 adsorbs seed, by clear kind of hairbrush After 10 remove extra seed, produced out of plants case 8；It is turned to when inhaling the seed-bearing negative inspiratory pressure mouth for turning shaft type suction discharging tube 4 When with being in contact with it blocking cooperation at arc air-flow blocking boss 9, turning shaft type and inhaling negative-pressure sucking disappearance in discharging tube 4, due to arc Shape air-flow blocks the initiating terminal of boss 9 to be located at eccentric 7 disc centre point horizontal diameter line position of aspiration disk, conducts oneself with dignity in seed Being rotated with sealing closing disk 5 makes seed low level discharge in vertical direction under tangential inertial force collective effect, directly broadcast and come kind of a ditch On soil.

Claims (1)

1. The feed mechanism for seed 1. a kind of aspirated-air type low level is vertically charged seed rotatably is equipped with drive shaft (1), described in fixing sleeve (2) It is concentric on the end of drive shaft (1) to be fixedly mounted with active disk (3), it is characterised in that：Eccentric disc (6) is packed in fixing sleeve (2) on outside, the disc centre point of the eccentric disc (6) and the eccentric perpendicular side of central point of hole line of eccentric disc (6) To configuration, the eccentric gas with air entry (11) is fixedly mounted on the fixing sleeve (2) outside, at eccentric disc (6) side Disk (7) is inhaled, the axial line of the bias aspiration disk (7) is overlapped with the axial line of eccentric disc (6), sealing closing disk (5) It is rotatably mounted on eccentric disc (6) circumferential outer surface, the sealing closing disk (5) seals with eccentric aspiration disk (7) Cooperation constitutes aspiration negative pressure chamber, and what is reciprocally swung on position between sealing closing disk (5) and active disk (3) equipped turns Shaft type inhale discharging tube (4), it is described turn shaft type inhale discharging tube (4) axial line configure in vertical direction, turn shaft type inhale discharging tube (4) with Aspiration negative pressure chamber is connected to, and is set on the eccentric aspiration disk (7) the internal face side lower part position opposite with sealing closing disk (5) Setting arc air-flow blocks boss (9), the arc air-flow that boss (9) upper end is blocked to be located at eccentric aspiration disk (7) disk On central point horizontal diameter line position, and the negative pressure aspiration mouth of discharging tube (4) is inhaled in the contact sealing for blocking air-flow with shaft type is turned Cooperation or the non-contact unlatching cooperation of connection air-flow on eccentric aspiration disk (7), are located at eccentric aspiration disk (7), sealing circle Plants case (8) is equipped at the side-lower position of cover board (5) and active disk (3), clear kind of hairbrush (10) is fitted in the suction kind of plants case (8) Mouthful place, it is described turn shaft type and inhale discharging tube (4) may pass through clear kind of hairbrush (10) to be inserted into plants case (8) interior.