Strip sowing belt straw cleaning device

Abstract

A kind of strip of cultivated seedling zone straw cleaning device is equipped with first support and second support, the bottom end of the first support and second support is rotatably connected with first sprocket and second sprocket respectively, the upper side between the first sprocket and second sprocket is also equipped with third sprocket, the third sprocket is connected with the power output device on the tractor used in cooperation;The outer side of the first sprocket, second sprocket and third sprocket is also equipped with double-row staggered elastic tooth, the double-row staggered elastic tooth is equipped with chain and is engaged with the first sprocket, second sprocket and third sprocket.It can change the angle of contact with soil according to the change of terrain, ensure the working depth, and further improve the cleaning ability to ditch. It will not form a closed space, and the soil can be retained on the ground while cleaning the straw, reducing the soil thrown to the straw belt.

Description

Technical Field

[0001] This utility model relates to the field of agricultural machinery, specifically to a strip tillage seedling strip straw cleaning device. Background Technology

[0002] Strip tillage, as one of the main techniques promoted in the conservation tillage system, has advantages such as high operational efficiency, low cost, and good crop emergence. Straw strip removal is a key step in strip tillage, and its effectiveness directly affects the quality of the tillage operation, thus influencing emergence and crop yield. The straw removal device, as a crucial component of the strip tiller, directly impacts the overall quality of the tillage operation.

[0003] Existing straw clearing devices primarily use disc-type components as their key parts. During operation, the rack of the straw-removing wheel contacts the straw or stubble on the ground, and the resistance or friction of the straw or stubble drives the wheel to rotate. The rotating rack picks up longer straws and throws them to the side and rear. This structure has significant limitations, specifically: 1. Cleaning width is limited by the disc diameter. The cleaning width of disc-type cleaning devices is mainly affected by the depth of the disc's penetration into the soil and the diameter of the disc. If the penetration depth remains unchanged, increasing the cleaning width requires increasing the disc diameter.

[0004] 2. Most of the rotating parts are passive, resulting in unsatisfactory cleaning effects. Passive straw-removing wheels rely on the ground reaction force or straw resistance during machine movement to rotate, leading to: unstable rotation speed (insufficient rotation at low speeds and easy slippage at high speeds); easy to stop rotating in conditions of sparse straw or soft, wet soil; and a structural design that is usually at a fixed angle, making it impossible to adjust the working angle and depth according to straw density. Summary of the Invention

[0005] In view of the above situation, in order to solve the problems existing in the above technology, this utility model proposes a strip tillage seedling strip straw cleaning device, which is provided with a first support and a second support. The bottom ends of the first support and the second support are respectively rotatably connected to a first sprocket and a second sprocket. A third sprocket is also provided above the first sprocket and the second sprocket. The third sprocket is connected to the power output device on the tractor used in conjunction with it. The outer sides of the first sprocket, the second sprocket and the third sprocket are also provided with double rows of staggered spring teeth. The double rows of staggered spring teeth are provided with chains that mesh with the first sprocket, the second sprocket and the third sprocket.

[0006] According to the present application, a strip tillage seedling strip straw cleaning device is provided, wherein the first support includes a first sprocket retainer and a first welded support; the bottom end of the first sprocket retainer is provided with a through hole for connecting the first sprocket, and the top end of the first sprocket retainer is provided with a first connecting post; the lower part of the first welded support is provided with a first round tube, and the first connecting post is inserted and connected to the first round tube.

[0007] It also includes a first spring limiting pin; the first connecting post is provided with a plurality of limiting holes, the side of the first round tube is provided with a first opening, the first spring limiting pin is inserted into one of the plurality of limiting holes through the first opening, and a first conforming spring is also provided inside the first round tube outside the first connecting post between the first spring limiting pin and the top of the first round tube.

[0008] A first spring stop is provided outside the first connecting post between the first contour spring and the first spring limiting pin.

[0009] According to the present application, a strip tillage seedling strip straw cleaning device is provided, wherein the second support includes a second sprocket holder and a second welded support; the bottom end of the second sprocket holder is provided with an adjusting connection part for connecting the second sprocket, and the top end of the second sprocket holder is provided with a second connecting post; the lower part of the second welded support is provided with a second round tube part, and the second connecting post is inserted and connected in the second round tube part.

[0010] The adjusting connection part is provided with an adjusting groove, and the second sprocket is rotatably connected to the adjusting groove via a second pin. Tension adjusters are also connected to both ends of the second pin. The tension adjuster includes a top plate and connecting plates on both sides of the top plate. The ends of the connecting plates are connected to the second pin. Tension screws are provided on the top plate, and the ends of the tension screws pass through the top plate and abut against the housing of the adjusting connection part.

[0011] It also includes a second spring limiting pin; the second connecting post is provided with a plurality of limiting holes, the side of the second round tube is provided with a second opening, the second spring limiting pin is inserted into one of the plurality of limiting holes through the second opening, and a second conforming spring is also provided inside the second round tube outside the second connecting post between the second spring limiting pin and the top of the second round tube.

[0012] A second spring baffle is also provided outside the second connecting post between the second contour spring and the second spring limiting pin.

[0013] According to the present application, a strip tillage seedling strip straw cleaning device is provided, wherein the bottom ends of the first support and the second support are respectively rotatably connected to a first sprocket and a second sprocket via a first pin and a second pin.

[0014] The first and second pins are respectively provided with baffles and expansion pins at both ends for restricting the first sprocket and the second sprocket from moving axially along the first and second pins.

[0015] After adopting the technology proposed in this utility model, the strip tillage seedling strip straw cleaning device according to the embodiment of this utility model has the following beneficial effects: 1. The double-row staggered spring teeth have a larger contact area with the soil, which can improve the cleaning effect of straw.

[0016] 2. The depth adjustment mechanism is a spring, which can change the contact angle with the soil according to the terrain changes, ensuring the working depth and thus improving the cleaning ability of the trench.

[0017] 3. The double-row, triangular arrangement of the spring teeth will not form a closed space, and while clearing the straw, it can keep the soil on the surface and reduce the amount of soil thrown into the straw strip.

[0018] 4. The length and diameter of the spring teeth and the size of the spring can be adjusted according to different soil types and straw coverage. Attached Figure Description

[0019] Figure 1 Here is a structural diagram of the crop stalk clearing device according to this application; Figure 2 The diagram shows the first support structure of the crop stalk clearing device according to this application. Figure 3 This is a structural diagram of the second support column of the crop stalk clearing device according to this application; Figure 4 This is a diagram of the double-row staggered spring tooth structure of the strip tillage seedling strip straw cleaning device according to this application.

[0020] In the picture, First Pillar 1 First sprocket retainer 11 First connecting post 12 First Welding Support 13 First circular tube section 14 First opening 141 First spring limiting pin 15 First conformal spring 16 First spring stop 17 Second Pillar 2 Second sprocket retainer 21 Second connecting post 22 Second welding support 23 Second round tube section 24 Second opening 242 Second spring limiting pin 25 Second conformal spring 26 Second spring stop 27 Adjustable connecting part 29 Adjusting long slot 290 First sprocket 3 Second sprocket 4 Third sprocket 5 Double-row interlaced spring teeth 6 First pin 71 Second pin 72 baffle 73 Sales increased by 74 Tensioner Regulator 8 Top plate 81 Connecting plate 82 83 tensioning screw Detailed Implementation

[0021] Preferred embodiments of the present invention will now be described with reference to the accompanying drawings. The following description, with reference to the accompanying drawings, is provided to aid in understanding exemplary embodiments of the present invention as defined by the claims and their equivalents. It includes various specific details to aid understanding, but these are to be considered exemplary only. Therefore, those skilled in the art will recognize that various changes and modifications can be made to the embodiments described herein without departing from the scope and spirit of the present invention. Furthermore, detailed descriptions of functions and structures well known in the art will be omitted to make the specification clearer and more concise.

[0022] like Figure 1-4 As shown, a strip tillage seedling and straw cleaning device includes a first support column 1 and a second support column 2. The bottom ends of the first support column 1 and the second support column 2 are rotatably connected to a first sprocket 3 and a second sprocket 4, respectively. A third sprocket 5 is also provided above the first sprocket 3 and the second sprocket 4. The third sprocket 5 is connected to the power take-off device on a tractor used in conjunction with it. Double rows of interlaced spring teeth 6 are also provided on the outer sides of the first sprocket 3, the second sprocket 4 and the third sprocket 5. A chain is provided on the double rows of interlaced spring teeth 6 to mesh with the first sprocket 3, the second sprocket 4 and the third sprocket 5.

[0023] The first support column 1 includes a first sprocket retainer 11 and a first welded support column 13; the bottom end of the first sprocket retainer 11 is provided with a through hole for connecting the first sprocket 3, and the top end of the first sprocket retainer 11 is provided with a first connecting post 12; the lower part of the first welded support column 13 is provided with a first round tube portion 14, and the first connecting post 12 is inserted and connected to the first round tube portion 14.

[0024] It also includes a first spring limiting pin 15; the first connecting post 12 is provided with a plurality of limiting holes, the first round tube portion 14 is provided with a first opening 141 on its side, the first spring limiting pin 15 is inserted into one of the plurality of limiting holes through the first opening 141, and a first contour spring 16 is also provided inside the first round tube portion 14 outside the first connecting post 12 between the first spring limiting pin 15 and the top of the first round tube portion 14.

[0025] A first spring baffle 17 is provided outside the first connecting post 12 between the first contour spring 16 and the first spring limiting pin 15.

[0026] The second support column 2 includes a second sprocket retainer 21 and a second welded support column 23; the bottom end of the second sprocket retainer 21 is provided with an adjusting connection part 29 for connecting the second sprocket 3, and the top end of the second sprocket retainer 21 is provided with a second connecting post 22; the lower part of the second welded support column 23 is provided with a second round tube part 24, and the second connecting post 22 is inserted and connected in the second round tube part 24.

[0027] The adjusting connection part 29 is provided with an adjusting groove 290. The second sprocket 3 is rotatably connected to the adjusting groove 290 via a second pin 72. Tension adjusters 8 are also connected to both ends of the second pin 72. The tension adjuster 8 includes a top plate 81 and connecting plates 82 provided on both sides of the top plate 81. The ends of the connecting plates 82 are connected to the second pin 72. Tension screws 83 are provided on the top plate 81. The ends of the tension screws 83 pass through the top plate 81 and abut against the housing of the adjusting connection part 29.

[0028] It also includes a second spring limiting pin 25; the second connecting post 22 is provided with a plurality of limiting holes, the second round tube portion 24 is provided with a second opening 242 on its side, the second spring limiting pin 25 is inserted into one of the plurality of limiting holes through the second opening 242, and a second contour spring 26 is also provided inside the second round tube portion 24 outside the second connecting post 22 between the second spring limiting pin 25 and the top of the second round tube portion 24.

[0029] A second spring baffle 27 is also provided outside the second connecting post 22 between the second contour spring 26 and the second spring limiting pin 25.

[0030] The bottom ends of the first support column 1 and the second support column 2 are rotatably connected to the first sprocket 3 and the second sprocket 4 via the first pin 71 and the second pin 72, respectively.

[0031] The first pin 71 and the second pin 72 are respectively provided with baffles 73 and expansion pins 74 for restricting the first sprocket 3 and the second sprocket 4 from moving axially along the first pin 71 and the second pin 72.

[0032] According to the strip tillage seedling strip straw cleaning device of this application, the positional relationship of the first sprocket 3, the second sprocket 4 and the third sprocket 5 forms a triangular arrangement, and the double-row staggered spring teeth 6 on the outer side also form a triangular arrangement structure, thereby forming a double-row spring tooth triangular arrangement.

[0033] According to the strip tillage seedling strip straw cleaning device of this application, the first pin 71 and the second pin 72 are respectively provided with baffles 73 and expansion pins 74 at both ends for restricting the first sprocket 3 and the second sprocket 4 to move axially along the first pin 71 and the second pin 72. The expansion pins 74 pass through the radial holes respectively provided at both ends of the first pin 71 and the second pin 72 and are tightened to restrict the baffles 73 from moving outward, thereby restricting the first sprocket 3 and the second sprocket 4 to move axially along the first pin 71 and the second pin 72.

[0034] According to the strip tillage and straw clearing device of this application, during installation, the tops of the first support column 1 and the second support column 2 are welded to the frame connected to the tractor. The first sprocket 3 is then connected to the first support column 1 via a pin, and the second sprocket 4 is connected to the second support column 2 via a pin. The two pins are axially limited using expansion pins and baffles. After engaging the double-row staggered spring teeth with the sprockets, the tensioning bolts are adjusted for tension. The third sprocket 5 is the drive sprocket and should be connected to the drive unit output from the tractor, with the tractor's power driving the sprocket's rotation.

[0035] During operation, as the machine moves forward, the third sprocket 5 rotates counterclockwise, driving the double-row interlaced teeth to rotate. The spring teeth on the double-row interlaced teeth can effectively separate the straw in the strip-tilled area to the un-operated area, achieving the purpose of clearing the straw in the strip-tilled area.

[0036] The function of the first support column 1 and the second support column 2 is to connect the strip tillage and straw clearing device to the frame, while also enabling the device to achieve a contouring effect. The force exerted by the ground and straw on the double-row staggered spring teeth can be buffered by the spring. The spring advance can be adjusted by adjusting the hole position between the spring limit pin and the sprocket retainer, thereby adjusting the contouring intensity.

[0037] Figure 4 The diagram shows a double-row staggered spring tooth design. The double-row staggered spring tooth design is based on the sprocket. Chain plates are fixed on both sides of the chain to arrange and fix the spring teeth. The spring teeth are designed in double rows and staggered arrangement, which can effectively increase the probability of contact between the spring teeth and the straw, and clean the strip tillage operation area.

[0038] The strip tillage and straw clearing device of this application adopts a sprocket and chain transmission method, and achieves flexible adjustment of the working width through a stepless adjustment mechanism. This solves the problem that the clearing width of existing straw clearing devices is limited by the diameter of the disc.

[0039] The strip tillage and straw clearing device of this application employs a power-driven active rotating component, significantly improving the slippage phenomenon during operation. Simultaneously, the cylindrical frame connection design allows the device to flexibly adjust the operating angle and depth according to actual field conditions (including straw thickness and operating width), thereby effectively enhancing the cleaning effect. This solves the problem that existing straw-removing wheels, mostly with passive rotating components, suffer from unsatisfactory cleaning results.

[0040] The beneficial effects of the strip tillage seedling strip straw cleaning device according to this application are as follows: 1. The double-row staggered spring teeth have a larger contact area with the soil, which can improve the cleaning effect of straw.

[0041] 2. The depth adjustment mechanism is a spring, which can change the contact angle with the soil according to the terrain changes, ensuring the working depth and thus improving the cleaning ability of the trench.

[0042] 3. The double-row, triangular arrangement of the spring teeth will not form a closed space, and while clearing the straw, it can keep the soil on the surface and reduce the amount of soil thrown into the straw strip.

[0043] 4. The length and diameter of the spring teeth and the size of the spring can be adjusted according to different soil types and straw coverage.

[0044] The present invention has been described in detail above. Specific examples have been used to illustrate the principle and implementation of the present invention. The description of the above embodiments is only for the purpose of helping to understand the method and core idea of ​​the present invention. At the same time, for those skilled in the art, there will be changes in the specific implementation and application scope based on the idea of ​​the present invention. Therefore, the content of this specification should not be construed as a limitation of the present invention.

[0045] Through the above description of the embodiments, those skilled in the art can clearly understand that this utility model is implementable. Of course, the situations listed above are merely examples, and this utility model is not limited thereto. Those skilled in the art should understand that other modifications or simplifications of the technical solutions of this utility model can be appropriately applied to this utility model and should be included within the scope of this utility model.

Claims

1. A strip tillage seedling strip straw cleaning device, characterized in that, The device is provided with a first support column (1) and a second support column (2). The bottom ends of the first support column (1) and the second support column (2) are rotatably connected to a first sprocket (3) and a second sprocket (4). A third sprocket (5) is provided above the first sprocket (3) and the second sprocket (4). The third sprocket (5) is connected to the power output device on the tractor. Double rows of interlaced spring teeth (6) are provided on the outer sides of the first sprocket (3), the second sprocket (4) and the third sprocket (5). A chain is provided on the double rows of interlaced spring teeth (6) to mesh with the first sprocket (3), the second sprocket (4) and the third sprocket (5).

2. The strip tillage seedling strip straw cleaning device according to claim 1, characterized in that, The first support column (1) includes a first sprocket retainer (11) and a first welded support column (13); the bottom end of the first sprocket retainer (11) is provided with a through hole for connecting the first sprocket (3), and the top end of the first sprocket retainer (11) is provided with a first connecting column (12); the lower part of the first welded support column (13) is provided with a first round tube (14), and the first connecting column (12) is inserted and connected in the first round tube (14).

3. The strip tillage seedling strip straw cleaning device according to claim 2, characterized in that, It also includes a first spring limiting pin (15); the first connecting post (12) is provided with a plurality of limiting holes, the first round tube part (14) is provided with a first opening (141) on the side, the first spring limiting pin (15) is inserted into one of the plurality of limiting holes through the first opening (141), and the first round tube part (14) is also provided with a first contour spring (16) between the first spring limiting pin (15) and the top of the first round tube part (14) on the outside of the first connecting post (12).

4. The strip tillage seedling strip straw cleaning device according to claim 3, characterized in that, A first spring baffle (17) is provided outside the first connecting post (12) between the first contour spring (16) and the first spring limiting pin (15).

5. The strip tillage seedling strip straw cleaning device according to claim 1, characterized in that, The second support column (2) includes a second sprocket retainer (21) and a second welded support column (23); the bottom end of the second sprocket retainer (21) is provided with an adjusting connection part (29) for connecting the second sprocket (4), and the top end of the second sprocket retainer (21) is provided with a second connecting post (22); the lower part of the second welded support column (23) is provided with a second round tube part (24), and the second connecting post (22) is inserted and connected in the second round tube part (24).

6. The strip tillage seedling strip straw cleaning device according to claim 5, characterized in that, The adjusting connection part (29) is provided with an adjusting groove (290), and the second sprocket (4) is rotatably connected to the adjusting groove (290) via the second pin (72); tension adjusters (8) are also connected to both ends of the second pin (72), the tension adjuster (8) includes a top plate (81) and connecting plates (82) provided on both sides of the top plate (81), the end of the connecting plate (82) is connected to the second pin (72); tension screws (83) are provided on the top plate (81), and the end of the tension screws (83) passes through the top plate (81) and abuts against the housing of the adjusting connection part (29).

7. The strip tillage seedling strip straw cleaning device according to claim 5, characterized in that, It also includes a second spring limiting pin (25); the second connecting post (22) is provided with a plurality of limiting holes, the second round tube part (24) is provided with a second opening (242) on the side, the second spring limiting pin (25) is inserted into one of the plurality of limiting holes through the second opening (242), and the second round tube part (24) is also provided with a second contour spring (26) between the second spring limiting pin (25) and the top of the second round tube part (24) on the outside of the second connecting post (22).

8. The strip tillage seedling strip straw cleaning device according to claim 7, characterized in that, A second spring baffle (27) is provided outside the second connecting post (22) between the second contour spring (26) and the second spring limiting pin (25).

9. The strip tillage seedling strip straw cleaning device according to claim 1, characterized in that, The bottom ends of the first support (1) and the second support (2) are rotatably connected to the first sprocket (3) and the second sprocket (4) via the first pin (71) and the second pin (72), respectively.

10. A strip tillage seedling strip straw cleaning device according to claim 9, characterized in that, The first pin (71) and the second pin (72) are respectively provided with baffles (73) and expansion pins (74) for restricting the first sprocket (3) and the second sprocket (4) from moving axially along the first pin (71) and the second pin (72).

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