CN2377812Y

CN2377812Y - Disc type seedling-cultivating precision sower

Info

Publication number: CN2377812Y
Application number: CN 99231853
Authority: CN
Inventors: 周明军; 刘卫; 程勇
Original assignee: CHENGDU AGRICULTURAL MACHINERY INST
Current assignee: CHENGDU AGRICULTURAL MACHINERY INST
Priority date: 1999-06-14
Filing date: 1999-06-14
Publication date: 2000-05-17
Anticipated expiration: 2009-06-14

Abstract

The utility model discloses a disc type seedling-cultivation precision sower, which is composed of a sowing device, a sowing frame, a seed containing disc, a seed disc frame and an electric gas system of a machine frame, wherein, the sowing device is mainly composed of a seed suction cavity, a seed suction plate, a two-way scavenging valve, a fan storehouse, a filter storehouse, a vacuum fan, a dust suction bag, a connection pipeline and a handle of a seed disc. The utility model has the utility model points that the utility model adopts the built-in vacuum fan and the two-way scavenging valve. Thereby, the utility model can realize the gas blowing seed charging of positive pressure and seed suction of negative pressure gas. Thus the utility model can reduce blockage and improve seeding quality.

Description

A kind of disc type seedling growing precision sower

The utility model relates to a kind of sower, particularly a kind of disc type seedling growing precision sower.

Sower conduct and the supporting agricultural electromechanical equipments of new agricultural technology such as seedling of paddy rice factory and rice transplanting, substantially all adopt mechanical pothole formula sowing a few years ago, this mode is bigger to the damage of seed, and the amount of broadcasting inaccuracy, the hole rate height, recent domestic another sower that occurred, i.e. vacuum adsorption type sower is though this sower is charged seed accurately, the amount of broadcasting is accurate, damage to seed is less, but still has a shortcoming, and Here it is at work, because seed is unclean, be mixed with many kinds of shells and needle-like impurity, when the sower absorbed seed, may adsorb these impurity, when charging seed, these impurity are because in light weight, shape is little, combines tightr with the suction hole, be difficult for falling, influence seeding quantity thereby stop up the suction hole by deadweight.

The purpose of this utility model is to provide a kind of disc type seedling growing precision sower, and this sower can be removed automatically and inhale hole impurity, reduces and stops up, and improves seeding quality.

For achieving the above object, the solution that the utility model adopts is: seeder is formed by inhaling kind of a chamber, seeds sucker, movable pulley, blower fan storehouse, filtering cabin, vacuum blower, dust collecting sleeve, two-way scavenging air valve and duct coupling, wherein vacuum blower places in the blower fan storehouse, dust collecting sleeve places in the filtering cabin, three openings are arranged on the valve body of two-way scavenging air valve, one of them opening links to each other with suction kind of a chamber, two other opening links to each other with two duct couplings respectively, the other end of two duct couplings respectively with vacuum blower storehouse and filtering cabin on the hole join.

Above-mentioned two-way scavenging air valve is made up of valve body, valve shaft, valve port, rubber shrouding, tensioning spring and spring plate washer, wherein valve port is four, the rubber shrouding is two, middle two valve ports and spring plate washer and valve body are integrally welded, valve shaft is worn in the centre bore of broadcasting on the valve port plate, can be fixed on the valve shaft with two rubber shroudings of different valve port closures, have three to plant the opening that the chamber links to each other with duct coupling with suction respectively on the valve body.

Below in conjunction with drawings and Examples the utility model is described in further detail.

Fig. 1 is a structure chart of the present utility model.

Fig. 2 is the end view of seeder among Fig. 1.

Fig. 3 be among Fig. 2 seeder along the cutaway view of A-A line.

From Fig. 1, Fig. 2, Fig. 3 can find out, the utility model is by seeder, sowing frame 1, contain kind of a dish 2, plant plate rail 3 and frame electrical system 4 compositions, wherein seeder is by inhaling kind of a chamber 5, inhale kind of a plate 6, two-way scavenging air valve 7, blower fan storehouse 8, filtering cabin 9, vacuum blower 10, dust collecting sleeve 11, movable pulley 12, duct coupling 13 and seed pan joystick 14 are formed, above-mentioned vacuum blower 10 places in the blower fan storehouse 8, dust collecting sleeve 11 is loaded in the filtering cabin 9, be airtight between two storehouses, cover plate of useful bolted-on all on two storehouses, inhale kind of a plate 6 and be fixed by bolts to suction kind of chamber 5 times, many apertures are arranged on the plate, inhale on kind of the chamber 5 and have a slot, an opening joins on this hole and the valve body, inventive point of the present utility model is that one is to have adopted vacuum blower 10, former domestic vacuum cleaners have been replaced, and blower fan 10 is placed in the blower fan storehouse 8, thereby improved greatly blower fan heat dissipating state, source of the gas conveyance conduit and air drag have been shortened, reduced energy consumption, another improvements are to have adopted two-way scavenging air valve 7, replaced former unidirectional scavenging air valve, thereby can realize negative pressure aspiration kind, positive pressure gas is charged seed, the structure of scavenging air valve 7 such as Fig. 2, shown in Figure 3, this scavenging air valve is the tandem reversal valve, it is by valve body 7a, valve shaft 7b, valve port 7c, rubber shrouding 7d, tensioning spring 7e and spring plate washer 7f form, wherein valve port 7d is totally four, be respectively 7c (I), 7c (II), 7c (III), 7c (IV), valve port 7c (II), 7c (III) and spring plate washer 7f and valve body 7d are integrally welded, all there is a hole at the center of valve port 7c (II) and 7c (III), valve shaft 7b passes this Kong Bingke and slidably reciprocates along the length direction of valve body, there is a tensioning spring 7e at the middle part of valve shaft 7b, the end of spring 7e contacts with spring plate washer 7f, the other end is limited on the valve shaft 7b, like this because the effect of spring 7e, it is normality and confined state that valve shaft 7b can form two states, rubber shrouding 7d is two, they are separately fixed on the valve shaft 7b, under the valve shaft normality, two rubber shrouding 7d respectively with valve port 7c (I) and 7c (III) closure, under confined state, two rubber shrouding 7d respectively with valve port 7c (II) and 7c (III) closure, thereby realize commutation, valve body 7a is a steel pipe, two is a flange, respectively with valve port 7c (I) and 7c (IV) bolt, there are three openings the valve body side, wherein two openings join by the hole on duct coupling 13 and vacuum blower storehouse 8 and the filtering cabin 9 respectively, and the another one opening joins with suction kind of a chamber 5.

The reversal valve that the utility model adopted can be finished bidirectional-movement, the air-blowing of seal malleation is charged seed, negative pressure aspiration kind, detailed process is as follows,: under normal conditions, rubber shrouding 7d respectively with valve port 7c (I), 7c (III) closure, air enters into valve port 7c (III) by the hole of inhaling on kind of the plate 6, enter into dust collecting sleeve 11 again, by vacuum blower 10, discharge again by valve 7c (IV), finish thus and inhale the action of planting, after depressing the scavenging air valve handle, rubber shrouding 7d again respectively with valve port 7c (II), 7c (IV) closure, air enters into dust collecting sleeve 11 by valve port 7c (I), enter into vacuum blower 10 again, enter 7c (III) by valve port again and enter into suction kind of a chamber 5, discharge, finish the action of charging seed thus by suction hole.The scavenging air valve handle amplitude of pressing down is adjustable, thereby controlled is blown the current rate of planting.

Use of the present utility model is: (1) connects power supply; (2) power-on switch; (3) regulate the power button to being fit to state; (4) depress seed pan joystick 14, seeder is pushed on the seed pan 2, up-down vibration seed pan handle 14 makes seed contact with seeder; (5) after seeder sucts seed, depress seed pan joystick 14 again, with seeder is counter be pushed on the plastic floppy disk location after, depress the scavenging air valve handle, promptly drop into a seed in the every cave of floppy disk, finish a process.

The utility model is owing to adopted built-in vacuum blower and two-way scavenging air valve, thereby the utility model can avoid impurity to stop up suction hole, thereby improves seeding accuracy (reaching about 98%), and does not shut down that can clear up is blocked inhales the hole, thereby can improve work efficiency.

Claims

1. disc type seedling growing precision sower, it is by seeder, the sowing frame, contain kind of a dish, plant plate rail, seed pan joystick and frame electrical system are formed, it is characterized in that: seeder comprises inhales kind of a chamber, seeds sucker, movable pulley, the blower fan storehouse, filtering cabin, vacuum blower, dust collecting sleeve, can make seeder realize charging seed and inhaling the two-way scavenging air valve and the duct coupling of planting, wherein vacuum blower places in the blower fan storehouse, dust collecting sleeve places in the filtering cabin, three openings are arranged on the valve body of two-way scavenging air valve, one of them opening links to each other with suction kind of a chamber, two other opening links to each other with two duct couplings respectively, the other end of two duct couplings respectively with vacuum blower storehouse and filtering cabin on the hole join.

2. a kind of disc type seedling growing precision sower according to claim 1, it is characterized in that: two-way scavenging air valve is made up of valve body, valve shaft, valve port, rubber shrouding, tensioning spring and spring plate washer, wherein valve port is four, the rubber shrouding is two, middle two valve ports and spring plate washer and valve body are integrally welded, valve shaft interts in the centre bore on the valve port plate, can be fixed on the valve shaft with two rubber shroudings of different valve port closures, have three to plant the opening that the chamber links to each other with duct coupling with suction respectively on the valve body.