Soil covering device for ridging seeder

Abstract

The present invention discloses a soil covering device for a ridging seeder, which comprises a bracket, a soil spreading component, a cover, and a connecting piece for movably connecting the bracket to the seeder frame. The soil spreading component includes a rotating roller and blades. The two end shafts of the rotating roller are movably connected to the bracket, and a driving wheel is provided at one end and is in transmission connection with a driving device. At least one blade is axially installed on the circumferential surface of the rotating roller. The rotating roller rotates in the direction opposite to the ridge, and the cover installed on the bracket above the soil spreading component extends towards the ridge direction, covering the upper part of the wide width of the ridge top surface. The present invention is installed on the rear frame of the ridging seeder. The driving device drives the rotating roller to rotate in the direction opposite to the ridge through a sprocket, and the blades stir the soil above the ridge side to fly to both sides, and under the blocking and control of the cover, it falls on the thin paper on the top surface of the ridge. Therefore, after the seeder travels one trip, the operations of ridging, sowing, paper covering, and soil covering are completed simultaneously, greatly improving the farming efficiency and reducing the manual labor.

Description

Technical Field

[0001] The invention relates to the field of agricultural machinery, and more particularly to a soil covering device for a ridging and seeding machine. Background Art

[0002] Ridge planting refers to the formation of rows of earth ridges on cultivated land, with the middle filled high and trenches formed on both sides, and crops are planted on the raised ridges in the middle. Currently, the ridge-forming seeder on agricultural machinery can realize that after walking on the cultivated land, the soil on both sides will be piled into ridges, and the ridges will be sown and covered with paper at the same time. Covering with paper can effectively prevent the evaporation of water in the soil and prevent birds from stealing food, but a thin layer of soil needs to be covered on the paper to prevent the paper from being blown away. In the past, some soil was shoveled manually to cover the paper, which not only consumed extra labor, but also had low operating efficiency. Summary of the invention

[0003] In view of the deficiencies in the prior art, the purpose of the present invention is to provide a soil covering device for a ridge-forming seeder that solves the above-mentioned problems, which can realize automatic soil covering after ridge-forming, sowing and paper covering, thereby improving farming efficiency and reducing labor.

[0004] To achieve the above object, the present invention provides the following technical solutions:

[0005] The soil covering device of a ridging seeder comprises a bracket, a soil shifting assembly, a cover and a connecting piece for movably connecting the bracket to a seeder frame. The soil shifting assembly comprises a roller and blades. The shaft heads at both ends of the roller are movably connected to the bracket, one end is provided with a transmission wheel which is transmission-connected to a driving device, at least one blade is axially installed on the circumference of the roller, the roller rotates in the opposite direction to the ridge, and the cover installed on the bracket above the soil shifting assembly extends in the direction of the ridge, and the cover covers the wide width of the top surface of the ridge.

[0006] The driving device drives the roller to rotate in the opposite direction of the ridge, and the blades push the soil on the upper side of the ridge toward the ridge. Under the obstruction of the cover, the soil falls on the ridge surface, achieving the effect of covering the paper with soil.

[0007] A further improved technical solution of the present invention is that the outer edge of the blade is bent 2-3 cm wide in the opposite direction of the rotation of the roller to form an inclined paddle, and the inclined angle of the inclined paddle is not greater than 30°. The inclined angle of the inclined paddle moves the soil so that the soil is concentrated and flies above the ridge, reducing the soil flying into the furrow in the middle of the ridge.

[0008] A further improved technical solution of the present invention is that the cover is an arc-shaped plate located above the top surface of the ridge, with its outer side inclined downward, and the side is at the same height as or lower than the top surface of the ridge. The shape of the cover prevents soil from flying over the ridge and falling into the ridge ditch on the other side of the ridge.

[0009] A further improved technical solution of the present invention is that the connecting member includes a sleeve and a connecting plate, the sleeve is movably sleeved on the upper cross bar of the bracket, and the connecting plate fixedly connected to the sleeve is installed on the seed drill frame. The sleeve is sleeved on the upper cross bar of the bracket to form a rotation connection, so that the bracket has better flexibility and can better adapt to the ridge slope.

[0010] A further improved technical solution of the present invention is that three blades are arranged at equal intervals on the circumference of the roller. The three blades evenly move the soil in turn, and the amount of soil moved matches the walking speed of the seeding vehicle, so as to cover the soil in an appropriate amount.

[0011] A further improved technical solution of the present invention is that a support plate is connected to the bracket, and the support plate is close to the side of the ridge. The support plate moves along the side wall of the ridge, so that the soil intake of the blade edge is uniform.

[0012] A further improved technical solution of the present invention is that an adjustment slot or adjustment hole is provided on the connection part between the support plate and the bracket to adjust the forward extension distance of the installed support plate. By adjusting the installation position of the slot hole, the support plate can be fixed at a suitable position in front and behind, and the support plate is attached to the side wall of the ridge, so as to adjust the depth of the soil eating amount of the oblique edge of the blade.

[0013] A further improved technical solution of the present invention is that a tension spring is connected to the bracket or the cover, and the top end of the tension spring is connected to the seed drill frame.

[0014] A further improved technical solution of the present invention is that a retaining plate inclined toward the ridge is longitudinally arranged on the inner wall of the cover on the side close to the soil-moving assembly. The retaining plate blocks part of the flying soil so that the raised soil can evenly fall on the paper on the top surface of the ridge.

[0015] A further improved technical solution of the present invention is that a paper pressing board is suspended above the top surface of the ridge, and the paper pressing board is composed of a plurality of ribs forming a rectangular board frame. The paper pressing board is pressed on the paper on the top surface of the ridge to prevent the paper from being blown away by the blade wind.

[0016] Beneficial effects of the present invention:

[0017] 1. This device is installed on the rear frame of the ridging seeder. The seeder's own driving device or a separately installed driving device is used to drive the rotating roller to rotate in the opposite direction of the ridge through the sprocket. The blades push the soil above the ridge to both sides and fall on the thin paper on the top surface of the ridge under the control of the cover. Therefore, after each trip of the seeder, the ridging, sowing, paper covering and soil covering operations are completed at the same time, which greatly improves agricultural efficiency and reduces manual labor.

[0018] 2. The upper part of the device is movably connected to the seeder frame, the baffle is close to the side of the ridge, and the tension spring is elastically pulled, so that the device can adapt to the changes of the ridge and move more smoothly and stably. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1Schematic front view structure of the present invention;

[0020] Figure 2 Schematic rear view structure of the present invention;

[0021] Figure 3 Schematic structure of the pressure plate. Detailed implementation manner

[0022] As Figures 1 to 3 shown, the present invention includes a bracket 1, a soil scraping component 2, a cover 3, and a connecting piece 4 that movably connects the bracket to the seeder frame 10. The bracket 1 is composed of an upper cross bar 11 and two vertical plates on both sides. The soil scraping component includes a rotating roller 21 and blades 22. The two end axles of the rotating roller 21 are movably connected to the bottoms of the two vertical plates on both sides of the bracket 1. A transmission wheel 23 is provided at one end and is chain-drivenly connected to a driving device 24. The driving device can be the driving device of the seeder itself or a separately installed motor as shown in the figure. The rotating roller 21 rotates in the opposite direction to the ridge 5. Three blades 22 are axially and equidistantly installed on the circumferential surface of the rotating roller 21. The outer edge part of the blade 22 with a width of 2 - 3 cm is bent in the opposite direction of the rotation direction of the rotating roller to form an inclined scraping piece 221. The inclination angle of the inclined scraping piece 221 is not greater than 30°. The cover 3 installed on the bracket above the soil scraping component extends towards the ridge direction and covers the upper width of the ridge top surface. The connecting piece 4 includes a sleeve 41 and a connecting plate 42. The sleeve 41 is movably sleeved on the upper cross bar 11 of the bracket, and the connecting plate 42 fixedly connected to the sleeve is installed on the seeder frame 10.

[0023] In order to prevent the flying soil from crossing the ridge and falling into the furrow on the other side outside, the cover 3 is located above the ridge top surface, and its outer side edge inclines downward, and the edge is flush with or lower than the top surface of the ridge.

[0024] The bracket 1 is movably connected to the seeder frame 10, so that the device can adapt to walking along the ridge, make reasonable avoidance, but is not restricted. The device is not stable during walking and the soil scraping effect is not good. Therefore, a backing plate 6 is connected to the bracket 1, and the backing plate abuts against the side of the ridge. A tension spring 8 is connected to the bracket 1 (or the cover 3), and the top end of the tension spring 8 is connected to the seeder frame 10. The backing plate 6 is closely attached to the side of the ridge. At the same time, the telescopic performance of the tension spring 8 pulls the device to ensure that the soil intake amount at the edge of the blade is the same during walking.

[0025] Because according to the requirement of the amount of soil covering, the soil intake amount at the edge of the blade needs to be adjusted, so an adjustment groove 71 (or adjustment hole) is provided at the connection part 7 between the backing plate 6 and the bracket 1 to adjust the installation position and select the fixed forward extension distance of the backing plate.

[0026] A retaining plate 31 that inclines towards the ridge direction is longitudinally provided on the inner wall of the cover 3 on the side close to the soil scraping component. The retaining plate blocks part of the flying soil so that the lifted soil can evenly fall on the paper on the ridge top surface.

[0027] When the blade rotates, a certain amount of wind force is generated. To prevent the paper from being blown away, a pressing paper board 9 is suspended above the ridge top surface. The pressing paper board 9 is composed of multiple strip ribs to form a rectangular plate frame.

[0028] The above description is only the preferred embodiment of the present invention, and the protection scope of the present invention is not limited to the above embodiments. All technical solutions falling within the idea of the present invention belong to the protection scope of the present invention. It should be pointed out that for those of ordinary skill in the art, without departing from the principle of the present invention, several improvements and refinements should also be regarded as the protection scope of the present invention.

Claims

1. The soil covering device of the ridging seeder is characterized in that: It includes a bracket (1), a soil scraping component (2), a cover (3), and a connecting piece (4) that movably connects the bracket to the seeder frame (10). The soil scraping component includes a rotating roller (21) and blades (22). The two end shafts of the rotating roller (21) are movably connected to the bracket (1). One end is provided with a transmission wheel (23) that is in transmission connection with a driving device (24). At least one blade (22) is axially installed on the circumferential surface of the rotating roller (21). The rotating roller (21) rotates in the opposite direction to the ridge (5). The cover (3) installed on the bracket above the soil scraping component extends towards the ridge. The cover (3) covers the upper part of the wide width of the ridge top surface; the connecting piece (4) includes a sleeve (41) and a connecting plate (42). The sleeve (41) is movably sleeved on the upper cross bar (11) of the bracket. The connecting plate (42) fixedly connected to the sleeve is installed on the seeder frame (10); a backing plate (6) is connected to the bracket (1). The backing plate abuts against the side of the ridge. An adjustment groove (71) or adjustment hole is provided at the connecting part (7) between the backing plate (6) and the bracket (1) to adjust the forward extension distance of the backing plate; a tension spring (8) is connected to the bracket (1). The top end of the tension spring (8) is connected to the seeder frame (10).

2. The soil covering device of the ridging seeder according to claim 1, characterized in that: The outer edge part of the blade (22) with a width of 2 - 3 cm is bent in the opposite direction of the rotation of the rotating roller to form an inclined scraping piece (221), and the inclination angle of the inclined scraping piece (221) is not greater than 30°.

3. The soil covering device of the ridging seeder according to claim 1, characterized in that: The cover (3) is an arc-shaped plate located above the ridge top surface. Its outer side edge inclines downward, and the edge is flush with or lower than the ridge top surface.

4. The soil covering device of the ridging seeder according to claim 1, wherein: Three blades (22) are equidistantly arranged on the circumferential surface of the rotating roller.

5. The soil covering device of the ridging seeder according to claim 1, characterized in that: A soil retaining plate (31) that inclines towards the ridge is longitudinally provided on the inner wall of the cover (3) on the side close to the soil scraping component.

6. The soil covering device of the ridging seeder according to claim 1, characterized in that: A pressing paper board (9) is suspended above the ridge top surface. The pressing paper board is composed of multiple strip ribs to form a rectangular plate frame.

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