CN86200343U

CN86200343U - Combined seed paddle with tangential rubbleband elastic seed hook

Info

Publication number: CN86200343U
Application number: CN 86200343
Authority: CN
Inventors: 张木林; 王玮
Original assignee: AGRICULTURAL MECHANIZATION SCIENTIFIC INST SHANXI PROV
Current assignee: AGRICULTURAL MECHANIZATION SCIENTIFIC INST SHANXI PROV
Priority date: 1986-01-17
Filing date: 1986-01-17
Publication date: 1986-10-29

Abstract

The utility model discloses a combined seed paddle with tangential rubber plate elastic seed hook, which belongs to the technical field of design manufacturing technology of agricultural machines. The utility model has the advantages that the seed broken rate of the vertical cell wheeling type seeding apparatus is reduced; the seeding rate is enhanced; the cost of the utility model is reduced; the service life of the utility model is prolonged. The utility model is characterized in that a wire suspended wall elastic seeding hook which is in a U shape can softly toggle seeds; the seeds whose weights are higher than the upper surface of the cells are toggled out of the cells; the seeds whose weights are lower than the upper surface of the cells are pressed into the cells; a tangential rubber plate not only has the function of pressing the seeds into the cells, but also has the function of preventing the seeds from getting out of the cells. The utility model is a seed paddle which specializes in vertical cell wheeling type seeding apparatus.

Description

Combined seed paddle with tangential rubbleband elastic seed hook

The utility model belongs to AGRICULTURAL MACHINE DESIGN manufacturing technology field.

The vertical nest eye Type Seed Metering Device of existing program request, bunch planting intertillage crop is being filled kind at the end, with a radially seed scraping device that is loaded on the rear wall of seeder unit shell the inside, is pasting the seed plate periphery, and unnecessary seed is scraped off.Because the scrambling of seed geometry, the seed that has fills plants when being over, also have partly and leak outside the nest eye, existing radially hairbrush, offset plate seed scraping device can not scrape seed the nest eye reliably, cause seed between nest eye limit and seeder unit shell rear wall, to be sheared, to push and fragmentation, cause seed broken rate, be generally 2～3%.External brush kind of the wheel vicariad brush that adopts, seed broken rate reduces to 2%.In the actual production, owing to do not adopt the standardization seed, the seed broken rate of this class seeding unit is up to 5%.

The purpose of this utility model is a kind of combined elastic seed scraping device of design, to reduce the seed broken rate of vertical nest eye Type Seed Metering Device.

Fig. 1 shows tangential offset plate elasticity seed hook combined seed paddle structure principle chart.This seed scraping device is made up of tangential offset plate (1) and elasticity seed hook (2).The elasticity seed hook utilizes a bolt and adds big flat washer and is fixed on housing (6) the inside rear wall.Tangential offset plate is pressed under the elasticity seed hook, and the front is met kind of limit and dialled the hook constraint by the U-shaped on the elasticity seed hook; The back withstands on the seeder unit shell rear wall; About retrained by the seeder unit shell two side.Tangential offset plate (1) is thick 3～5 a millimeters rectangular rubber plate, long 30～35 millimeters, widely exposes wide equating in housing with seed plate.After in it is fixed on seeder unit shell,, and pushed down by the press section of elasticity seed hook (2) (8) along tangentially being close on the seed plate of seed plate (5) periphery.Elasticity seed hook (2) curves with 1.5～2 millimeters 65Mn spring steel wires of diameter, and shape as shown in Figure 2.It can be divided into canned paragraph (7), press section (8), back bending section (9) and U-shaped and dial four sections on hook (10) etc.The seed guiding groove cross section that U-shaped is dialled the crooked head shapes of hook and seed plate with, with 0～0.5 millimeter of seed guiding groove spacing.After the installation, U-shaped is dialled plane, hook gib head place and is crossed the seed plate axle center.Set bolt passes between two canned paragraphs (7) of elasticity seed hook (2) by adding big flat washer, is fixed in seeder unit shell the inside rear wall.Tangential offset plate (1) is dialled hook towards U-shaped one side is meeting kind of a limit, and itself and U-shaped are dialled 1～2 millimeter of the spacing of hook (10).

The effect of elasticity seed hook is mildly to stir seed; The effect of tangential offset plate is mildly to smear by seed and protection seed to deviate from from the nest intraocular.Tangential offset plate is an elastomeric material, and the elasticity seed hook is again cantilever-shaped fixing.Therefore, the two also can have certain activity because the elasticity of itself can have certain activity along the nest eye surface of seed plate periphery perpendicular to nest eye surface.These two kinds of activities can cause a kind of toggle action to the seed of its below nest intraocular.If a seed is arranged, part is leaked beyond nest eye surface, when its along with seed plate goes to U-shaped when dialling hook (10) below, just the top U-shaped that can make progress is dialled hook.U-shaped is dialled hook because of flexible, by the jack-up that make progress, then with reaction force acts in seed, the result has two; Spill a fraction of seed of nest eye, because of being in, center of gravity dials under the hook application point, mildly pressed by the elasticity seed hook to next, then by whippy tangential offset plate downwards mildly by smearing, be pressed into the nest eye, the filling gesture that this has promptly strengthened seed, the seed that enters the nest eye is hidden by tangential offset plate, can prevent deviating from; Spill most seed of nest eye, dial on the hook application point, by the mildly extrapolated nest eye of elasticity seed hook because of center of gravity is in.Because the elasticity seed hook is to make with 1.5～2 millimeters steel wires of diameter, kind of the district that touches that U-shaped is dialled hook takes the shape of the letter U again, so seed chance kind of a hook easily horizontally slips up and down, dials on the hook and can extremely not withstand on, and therefore also just is not easy to shear, push seed, thereby has avoided fragmentation.

The more existing hairbrush of the utility model, offset plate seed scraping device have three advantages: the one, and seed broken rate is extremely low, has only about 0.2%; The 2nd, can bring up to 99% with seed-filling rate by hairbrush, below 95% of offset plate seed scraping device correspondence; The 3rd, the service life of having improved seed scraping device.Its more existing brush is planted the advantage that wheeled seed scraping device is simple in structure in addition, cost is low.

Fig. 1 shows tangential offset plate elasticity seed hook combined seed paddle structure principle chart.Among the figure: the tangential rubber slab of 1-; 2-elasticity seed hook; 3-nest eye; The 4-seed guiding groove; The 5-seed plate; The 6-seeder unit shell.

Fig. 2 shows elasticity seed adjustment hook structure figure.Among the figure: the 7-canned paragraph; The 8-press section; 9-back bending section; 10-U shape is dialled hook.

The elasticity of elasticity seed hook depends on the spacing between wire quality, diameter, heat treatment and pressing plate segment length, back bending segment length and two sections, and steel wire is advisable with the 65Mn spring steel wire of 1.5～2 millimeters of diameters; The pressing plate segment length is 100 millimeters; The back bending segment length is 65～70 millimeters; Spacing is 2～4 millimeters between press section and the back bending section; Cold roll forming, not heat treatment.

Claims

A kind of seed scraping device that supplies dispenser to use, it is made up of tangential offset plate [1] and elasticity seed hook [2], it is characterized in that:

A, tangential offset plate, rubber slab is made, and thick 3～4 millimeters, long 30～35 millimeters, widely exposes wide equating in housing with seed plate.It tangentially gently is pressed on the periphery of seed plate by the elasticity seed hook along seed plate after being fixed in the seeder unit shell;

B, elasticity seed hook, the 65Mn spring steel wire clod wash that diameter is 1.5～2 millimeters, likeness in form " L " shape.Earlier the guiding principle silk is curved U-shaped, the seed guiding groove cross section of crooked head shapes and seed plate together; With the two legs bending of " U " shape steel wire, form stiff end again; After with bending section to stiff end two leg bending direction back bending; At last the bending head is carried stiff end two leg direction bendings, form " U-shaped is dialled hook ".U-shaped is dialled 0～0.5 millimeter of hook and seed guiding groove spacing.After the installation, U-shaped is dialled plane, hook gib head place and is crossed the seed plate axle center;

C, the U-shaped of meeting kind of limit and elasticity seed hook of tangential offset plate is dialled 1～2 millimeter of hook spacing.