CN201054877Y

CN201054877Y - Air absorbing type small seeding rate rice blanket shaped seeding tray seedling-culturing precision grain drill

Info

Publication number: CN201054877Y
Application number: CNU2007200379723U
Authority: CN
Inventors: 闵启超; 吴崇友; 唐宗义; 肖体琼; 张敏; 张文毅
Original assignee: Nanjing Research Institute for Agricultural Mechanization Ministry of Agriculture
Current assignee: Nanjing Research Institute for Agricultural Mechanization Ministry of Agriculture
Priority date: 2007-05-24
Filing date: 2007-05-24
Publication date: 2008-05-07
Anticipated expiration: 2017-05-24

Abstract

The utility model discloses a precise suction planter for small-sowing paddy blanket-type seedling cultivation, including a frame, a seeding component and an air valve. The frame is provided with a positioning spare part for accurately placing a seedling cultivation disc and a rotary arm connected with the seeding component; the seeding component consists of a handle, a shell, a seed suction plate and a seed storage slot; the air inlet of the air valve is connected with the seeding component and the air outlet is connected with a negative pressure source. The utility model is characterized in that the seed suction holes on the seed suction plate of the seeding component are alignedly distributed in determinant of a matrix; the upper part of the seed suction hole is provided with a cylindrical concave hole for holding the vertical paddy seeds. The planter can accurately plant 1 to 2 paddy seeds into 960 rectangular panes of 14mm*11.67mm distributed on the seedling cultivation disc respectively and meet the seeding requirement of crossbred paddy blanket-type seedling cultivation. The utility model has the advantages of reliable performance, simple structure and low price, thus enhancing the development of crossbred paddy mechanical seedling transplantation once widely promoted and used.

Description

Air-Suction Low-capacity Blanket Rice Seedling Precision Seeder

Technical field

The utility model relates to a kind of seeding machinery, and especially a kind of pneumatic seeder of the amount of broadcasting rice seedlings in blanket-like seedling precise sowing for a short time that is applicable in the raising rice seedlings dish belongs to agricultural machinery technological field.

Background technology

In recent years, China's rice planting machine fast development, particularly paddy machinery rice transplanting technology maturation, popularizing area are significantly risen year by year.For realizing the paddy machinery rice transplanting, before with the rice transplanter rice transplanting, at first be in the seedling dish, to cultivate normalized blanket shape rice seedling.Conventional rice generally requires every cave to transplant 2～3 strain rice shoots, and the seeding quantity of every dish is about 3000 during seedling planting.Existing rice plate breeding seedling implanted device adopts grooved pulley type or indent type sowing parts usually, can satisfy the requirement of conventional rice blanket shape seedling precise sowing.

But, produce hybrid rice (or super hybrid rice) area in China south, growth characteristics according to this veriety paddy rice, require every cave to transplant 1 strain, 2 strain rice shoots at the most, therefore compare with conventional rice, the raising rice seedlings in blanket-like tray that is suitable for machine rice transplantation, the seeding quantity of every dish will be reduced to about 1500, and all can get rice shoot for guaranteeing seedling claw of transplanter at every turn, requirement is divided into 960 rectangle grids that are of a size of 14mm * 11.67mm that ranks align with the seedling dish, accurately sows 1～2 seed in each rectangle grid.According to literature search, also do not have to satisfy the raising rice seedlings in blanket-like tray of the amount of broadcasting for a short time precise sowing equipment of this requirement at present both at home and abroad, and can't reach requirement yet with the by artificial seeding.Therefore, the seedling planting limitation of the technology machine transplanting of rice seedling technology in hybrid rice (comprising super hybrid rice) produces, use.

Develop by the applicant, the patent No. is 00261737.4 disclosed utility model patent grow seedlings of vegetable sower, be made up of sowing parts that connect negative pressure source etc., seed is inhaled one by one on the aperture of seed board during sowing, can accurately contraposition sowing in seedling-cultivating tray.But when carrying out the hybrid rice seedling planting with these facility, because seeding quantity is bigger more than 10 times than grow seedlings of vegetable seeding quantity, and rice paddy seed is microscler, volume is big, rough surface, inhaling poor mobile performance on kind of the plate, so can not be suitable for.

Summary of the invention

The technical problems to be solved in the utility model is by the architecture advances to above-mentioned grow seedlings of vegetable sower, to propose good, the simple in structure Air-Suction Low-capacity Blanket Rice Seedling Precision Seeder of a kind of serviceability.

To achieve these goals, Air-Suction Low-capacity Blanket Rice Seedling Precision Seeder of the present utility model, comprise frame, sowing parts and air valve, this frame be provided with accurate placement seedling dish locating element and with sowing parts hinged pivoted arm, these sowing parts are by handgrip, housing, inhaling kind of plate forms with storage kind of groove, the air inlet of this air valve connects the sowing parts, the gas outlet connects negative pressure source, its architecture advances is: the suction hole that described sowing parts are inhaled on kind of the plate becomes rectangular ranks aligned fashion, is shaped on to hold above described suction hole to be the cylindrical shrinkage pool of erectting the attitude seed rice.

The cylindrical shrinkage pool of above-mentioned suction kind plate is coaxial with suction hole, and the former degree of depth is that length, the diameter of 2/3～3/4 seed rice is 3～5mm, and the latter's diameter is 0.9～1.2mm.

In the utility model when work, place the upright position with pivoted arm earlier, will sow the parts upset upwards, and the paddy rice kind in storage this moment kind of the groove flow into inhales on kind of the plate, and in the time of will sow parts again and rock as dead axle, seed just can be tiled in suction and plant on the plate and make move left and right.Be understood that, owing on suction kind of plate, be provided with the cylindrical shrinkage pool that can hold seed rice, the seed rice that is trapped in when mobile wherein and is held by suction hole, neither can be subjected to the impact of mobile seed rice and come off, also can reduce greatly to plant the obstruction that mobile seed rice produces on the plate surface, thereby guarantee good sowing performance inhaling.

Evidence, with Air-Suction Low-capacity Blanket Rice Seedling Precision Seeder sowing of the present utility model, 960 of column alignment of can being expert at are of a size of in the rectangle grid of 14mm * 11.67mm and critically broadcast into 1～2 seed rice, can satisfy the requirement of hybrid rice seedlings in blanket-like tray seedling planting.Therefore, the utility model has solved the difficult problem of hybrid rice seedlings in blanket-like tray seedling planting, and have simple in structure, be convenient to make, advantages of cheap price, in case promote the use of the development that will promote the hybrid rice mechanized planting.

Description of drawings

Below in conjunction with accompanying drawing the utility model is further described.

Fig. 1 is the structural representation of the utility model embodiment.

Fig. 2 is a sowing parts enlarged drawing embodiment illustrated in fig. 1.

Fig. 3 is that the A of Fig. 2 is to partial enlarged drawing.

Fig. 4 is the B-B zoomed-in view of Fig. 3.

Embodiment

An embodiment of the present utility model is provided in the accompanying drawing without limitation, and the utility model will be further described below in conjunction with this embodiment.

The Air-Suction Low-capacity Blanket Rice Seedling Precision Seeder of present embodiment as can be seen from Fig. 1～4, mainly form by frame 1, sowing parts 3, air valve 5 etc., its mid frame 1 is provided with pivoted arm 2 and locating element 4, sowing parts 3 are made up of handgrip 9, housing 7, suction kind of plate 8 and storage kind of a groove 10, air valve 5 is connected with the housing 7 of sowing parts 3, and its inlet, outlet connects sowing parts 3 and negative pressure source respectively.

Sowing parts 3 are hinged by pivoted arm 2 and frame 1, and locating element 4 is installed on the table top of frame 1.Inhaling kind of the PVC plastic plate that plate 8 usefulness 8mm are thick makes, be connected with housing 7 and constitute an airtight cavity volume, 960 that are shaped on the column alignment of embarking on journey on position and the seedling dish on suction kind of the plate 8 are of a size of 14mm * corresponding suction hole 11 in 11.67mm rectangle grid center, are shaped on the cylindrical shrinkage pool 12 coaxial with it above each suction holes 11.According to different seeds, the diameter of suction hole 11 is 0.9～1.2mm, and the diameter of cylindrical shrinkage pool 12 is 3～5mm, and the degree of depth is the length of 2/3～3/4 seed rice.

When the air-sucking type seedling cultivation of rice sower of present embodiment is worked, earlier pivoted arm 3 is placed the upright position, the upset of sowing parts 3 is made progress, paddy rice kind in storage this moment kind of the groove 10 flow into inhales on kind of the plate 8, in the time of will sowing parts 3 again and rock as dead axle, seed just can be tiled on suction kind of the plate 8 and make move left and right, the part seed drops in the cylindrical shrinkage pool 12 and is held by suction hole 11, at this moment will sow parts 3 upsets downwards, the seed that is not held will flow in storage kind of the groove 10, then pivoted arm 2 is turned clockwise, make sowing parts 3 be in the top of seedling dish, the control lever of air valve 5 is pressed on the air valve baffle plate 6 that is connected with frame 1 and has cut off negative pressure source, so seed drops in the seedling dish by the deadweight aligned position.

The advantage that the Air-Suction Low-capacity Blanket Rice Seedling Precision Seeder of present embodiment has: the one, simple in structure, processing technology good, cost is low; The 2nd, the seeding accuracy height, leakage sowing rate is lower than 3%; The 3rd, production efficiency is higher, and per hour sowing can reach more than 200 dishes; The 4th, the sowing processing ease, labour intensity is little.What therefore the utility model was applied has good prospects.

In addition to the implementation, the utility model can also have other embodiments, adopts the technical scheme that is equal to replacement or equivalent transformation formation, all drops within the protection domain of the utility model requirement.

Claims

1. Air-Suction Low-capacity Blanket Rice Seedling Precision Seeder, comprise frame, sowing parts and air valve, this frame be provided with accurate placement seedling dish locating element and with sowing parts hinged pivoted arm, these sowing parts are made up of handgrip, housing, suction kind plate and storage kind of a groove, the air inlet of this air valve connects the sowing parts, the gas outlet connects negative pressure source, it is characterized in that: the suction hole that described sowing parts are inhaled on kind of the plate becomes rectangular ranks aligned fashion, is shaped on to hold above described suction hole to be the cylindrical shrinkage pool of erectting the attitude seed rice.

2. according to the described Air-Suction Low-capacity Blanket Rice Seedling Precision Seeder of claim 1, it is characterized in that: described cylindrical shrinkage pool is coaxial with suction hole, and its degree of depth is the length of 2/3～3/4 seed rice.

3. according to the described Air-Suction Low-capacity Blanket Rice Seedling Precision Seeder of claim 2, it is characterized in that: the diameter of described cylindrical shrinkage pool is 3～5mm.

4. according to claim 1,2 or 3 described Air-Suction Low-capacity Blanket Rice Seedling Precision Seeders, it is characterized in that: described suction hole diameter is 0.9～1.2mm.