A tractor-mounted seedling thinning device

Abstract

The invention discloses a tractor-suspended seedling thinning device, comprising a frame, a supporting and adjusting wheel and a thinning unit; the thinning unit comprises a four-bar floating mechanism, a mounting frame, a gearbox, a horizontal rotating cutter disc, a thinning shovel, a driving ground wheel and a driving wheel shaft; the mounting frame is fixedly connected to the four-bar floating mechanism, and the four-bar floating mechanism is connected to the bracket; a gearbox mounting seat, a horizontal bearing seat and a vertical bearing seat are respectively mounted at corresponding positions of the mounting frame; the gearbox is mounted on the gearbox mounting seat; a first sprocket is mounted on the gearbox input shaft; a connecting shaft sleeve is mounted on the gearbox output shaft, and the horizontal rotating cutter disc is mounted on the horizontal bearing seat through the mounting shaft thereon and is connected to the connecting shaft sleeve; thinning shovels are mounted in pairs on the horizontal rotating cutter disc; the driving wheel shaft is mounted on the vertical bearing seat; the driving ground wheel is fixedly mounted on both ends of the driving wheel shaft; a second sprocket is mounted on the driving wheel shaft; the first sprocket and the second sprocket are connected by a chain; and the power of the horizontal rotating cutter disc is provided by the driving ground wheel.

Description

Technical Field

[0001] The invention belongs to the field of crop thinning, and in particular relates to a tractor-mounted thinning device. Background Art

[0002] When planting some crops such as grains and vegetables, dense sowing is carried out in row sowing to ensure the emergence rate and improve sowing efficiency. Thinning and determination of seedlings are required in the seedling stage after the emergence of crops due to agronomic requirements. Thinning and determination of seedlings are mostly done manually, which is labor-intensive, inefficient, and has large differences in the spacing between seedlings. Summary of the invention

[0003] In order to solve the technical problems existing in the prior art, the present invention provides a tractor-mounted seedling thinning device, which adopts a tractor-mounted operation mode to achieve uniform thinning at equal distances. The tractor-mounted seedling thinning device of the present invention can achieve multi-row operation, high efficiency and good thinning effect.

[0004] The technical solution adopted by the present invention is as follows:

[0005] The present invention provides a tractor-mounted seedling thinning device, comprising a frame, a supporting and adjusting wheel and a seedling thinning unit; two supporting and adjusting wheels are installed at the bottom of the frame, and a row of seedling thinning units is installed on the bracket; each seedling thinning unit has the same structure, including a four-bar floating mechanism, a mounting frame, a gearbox, a first sprocket, a gearbox mounting seat, a connecting shaft sleeve, a horizontal bearing seat, a horizontal rotating knife disc, a seedling thinning shovel, a driving ground wheel, a driving wheel shaft, a vertical bearing seat, and a second sprocket;

[0006] The mounting frame is fixedly connected to the four-bar floating mechanism, and the four-bar floating mechanism is connected to the bracket;

[0007] The gearbox mounting seat, horizontal bearing seat and vertical bearing seat are respectively installed at corresponding positions of the mounting frame; the gearbox is installed on the gearbox mounting seat; a first sprocket is installed on the gearbox input shaft; a connecting sleeve is installed on the gearbox output shaft, and the horizontal rotating cutter disc is installed on the horizontal bearing seat through the mounting shaft thereon and connected to the connecting sleeve; thinning shovels are installed in pairs on the horizontal rotating cutter disc; the driving wheel shaft is installed on the vertical bearing seat; the driving ground wheel is fixedly installed at both ends of the driving wheel shaft; a second sprocket is installed on the driving wheel shaft; the first sprocket and the second sprocket are connected by a chain; the power of the horizontal rotating cutter disc is provided by the driving ground wheel.

[0008] As a further technical solution, a rectangular mounting hole is provided on the horizontal rotating knife disc; the thinning shovels are installed in pairs under the horizontal rotating knife disc, and the installation spacing of the thinning shovels can be adjusted through the rectangular mounting holes.

[0009] As a further technical solution, the height of the horizontal rotating cutter disc from the ground can be adjusted during installation.

[0010] As a further technical solution, the thinning device is connected to the tractor through a three-point suspension component when working.

[0011] As a further technical solution, the thinning shovel includes a mounting plate, a vertical pipe, and a shovel head; the mounting plate is provided with a mounting hole, a vertical pipe is installed at the bottom of the mounting plate, a shovel head is installed at the bottom of the vertical pipe, and the shovel head is used for thinning.

[0012] The beneficial effects of the above embodiments of the present invention are as follows:

[0013] 1. The power of the horizontal rotating cutter disc in the present invention is provided by the driving wheel through the transmission structure, so that there is a specific correlation between the driving wheel rotation speed and the horizontal rotating cutter disc rotation speed. By adjusting the transmission ratio of the gearbox, the seedling spacing required by different agronomic requirements can be met.

[0014] 2. The height of the horizontal rotating blade disc from the ground in the present invention can be adjusted during installation, so that the height of the thinning shovel can be adjusted to adapt to different working depths.

[0015] 3. The horizontal rotating knife disc in the present invention is provided with a rectangular mounting hole, so that the thinning shovels installed in pairs thereon can adjust the installation spacing of the thinning shovels through the rectangular mounting holes, and the thinning length and the seedling length can be adjusted by adjusting the installation spacing. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The accompanying drawings in the specification, which constitute a part of the present invention, are used to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute improper limitations on the present invention.

[0017] Figure 1 It is a front view of an embodiment of the present invention;

[0018] Figure 2 A top view of an embodiment of the present invention;

[0019] Figure 3 It is a front view of a thinning unit according to an embodiment of the present invention;

[0020] Figure 4 A side plan view of a thinning unit according to an embodiment of the present invention;

[0021] Figure 5 A side bottom view of a thinning unit according to an embodiment of the present invention;

[0022] Figure 6 A side plan view of a rotary cutter head assembly according to an embodiment of the present invention;

[0023] Figure 7A side bottom view of a rotary cutter head assembly according to an embodiment of the present invention;

[0024] In the figure, 1: frame; 2: three-point suspension component; 3: support adjustment wheel; 4: thinning unit; 5: four-bar floating mechanism; 6: mounting frame; 7: gearbox; 8: first sprocket; 9: gearbox mounting seat; 10: connecting sleeve; 11: horizontal bearing seat; 12: horizontal rotating knife disc; 13: thinning shovel; 14: driving ground wheel; 15: driving wheel shaft; 16: vertical bearing seat; 17: second sprocket. DETAILED DESCRIPTION

[0025] It should be noted that the following detailed descriptions are illustrative and intended to provide further explanation of the present invention. Unless otherwise specified, all technical and scientific terms used in the present invention have the same meanings as those commonly understood by those skilled in the art to which the present invention belongs.

[0026] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present invention. As used herein, unless otherwise explicitly stated in the present invention, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "include" and / or "include" are used in this specification, it indicates the presence of features, steps, operations, devices, components and / or combinations thereof;

[0027] For the convenience of description, if the words "up", "down", "left" and "right" appear in the present invention, they only indicate that they are consistent with the up, down, left and right directions of the drawings themselves, and do not limit the structure. They are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it cannot be understood as a limitation on the present invention.

[0028] Terminology explanation section: The terms "install", "connect", "connect", "fixed" and the like in the present invention should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral whole; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be an internal connection between two elements, or an interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to the specific circumstances.

[0029] As introduced in the background technology, there are deficiencies in the prior art. In order to solve the above technical problems, the present invention proposes a tractor-mounted thinning device.

[0030] In a typical embodiment of the present invention, Figure 1As shown, a tractor-mounted thinning device comprises a frame 1, a three-point suspension component 2, a support adjustment wheel 3 and a plurality of thinning units 4; Figure 2 As shown, a plurality of thinning units 4 are connected to the frame 1, and two supporting and adjusting wheels 3 are installed at the bottom of the frame 1, and the supporting and adjusting wheels 3 are installed at the bottom of the frame 1 through U-bolts; when working, the frame 1 is connected to the tractor through the three-point suspension component 2. Figure 2 In the embodiment, 7 thinning monomers 4 are given. Of course, it is not difficult to understand that in other embodiments, the number of thinning monomers 4 is not limited to the 7 disclosed in this embodiment.

[0031] The structure of each of the above-mentioned thinning monomers is the same. In this embodiment, one of them is taken as an example for explanation. The structure of the thinning monomer disclosed in this embodiment is as follows: Figure 3 , Figure 4 As shown, it includes a four-bar floating mechanism 5, a mounting frame 6, a gearbox 7, a first sprocket 8, a gearbox mounting 9, a connecting sleeve 10, a horizontal bearing seat 11, a horizontal rotating knife disc 12, a thinning shovel 13, a driving ground wheel 14, a driving wheel shaft 15, a vertical bearing seat 16, and a second sprocket 17; the overall structure of the thinning unit 4 is fixed to the frame 1 by U-bolts; the mounting frame 6 is fixedly connected to the four-bar floating mechanism 5, and the four-bar floating mechanism 5 is connected to the frame 1; the gearbox mounting seat 9, the horizontal bearing seat 11, and the vertical bearing seat 16 are respectively installed at corresponding positions of the mounting frame 6, and the specific gearbox mounting seat 9 is installed at the top of the middle position of the mounting frame 6, and the gearbox 7 is installed on the gearbox mounting seat 9; the input shaft of the gearbox 7 is horizontally arranged, and the first sprocket 8 is installed thereon; the output shaft of the gearbox 7 is vertically arranged, extending below the mounting frame 6, and a connecting sleeve 10 is installed on the output shaft of the gearbox 7. The horizontal rotating cutter head 12 is mounted on the horizontal bearing seat 11 via the mounting shaft thereon, and is connected to the connecting sleeve 10. The height of the horizontal rotating cutter head 12 from the ground can be adjusted during installation.

[0032] Furthermore, in this embodiment, a rectangular mounting hole is provided on the horizontal rotating blade disc 12; the thinning shovels 13 are installed in pairs under the horizontal rotating blade disc 12, and the installation spacing of the two thinning shovels 13 can be adjusted through the rectangular mounting holes. The adjustment of the installation spacing can realize the adjustment of the thinning length and the seedling length.

[0033] The two ends of the driving wheel shaft 15 are mounted on the vertical bearing seat 16; the vertical bearing seat 16 is fixed on the left and right sides of the mounting frame 6, and the driving ground wheel 14 includes two, which are fixedly mounted on the two ends of the driving wheel shaft 15 respectively; the middle part of the driving wheel shaft 15 is installed with a second sprocket 17, and the first sprocket 8 and the second sprocket 17 are connected by a chain; when the driving ground wheel 14 rotates, it drives the second sprocket 17 to rotate, and the second sprocket 17 drives the first sprocket 8 to rotate through the chain, and the first sprocket 8 is mounted on the input shaft of the reduction box, and the output shaft of the reduction box is connected to the horizontal rotating cutter disc 12, so the horizontal rotating cutter disc 12 rotates together, and the power of the horizontal rotating cutter disc 12 is provided by the driving ground wheel. The power of the horizontal rotating cutter disc in the present invention is provided by the driving ground wheel through the transmission structure, so that there is a specific correlation between the rotation speed of the driving wheel and the rotation speed of the horizontal rotating cutter disc, and the seedling spacing required by different agronomic requirements can be met by adjusting the transmission ratio of the gearbox.

[0034] Furthermore, the height of the horizontal rotating blade disc from the ground can be adjusted during installation, so that the height of the thinning shovel can be adjusted to adapt to different working depths.

[0035] like Figure 7 As shown, the thinning shovel 13 includes a mounting plate, a vertical pipe, and a shovel head; the mounting plate is provided with a mounting hole, a vertical pipe is installed at the bottom of the mounting plate, and a shovel head is installed at the bottom of the vertical pipe, and the shovel head is used for thinning.

[0036] The technical features of the above-described embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0037] Finally, it should be noted that relational terms such as first and second are merely used to distinguish one entity or operation from another entity or operation, but do not necessarily require or imply any actual relationship or order between these entities or operations.

[0038] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A tractor-mounted seedling thinning device, characterized in that: The invention comprises a frame, a supporting and adjusting wheel and a thinning unit; two supporting and adjusting wheels are installed at the bottom of the frame, and a row of thinning units is installed on the frame; each thinning unit has the same structure, including a four-bar floating mechanism, a mounting frame, a gearbox, a horizontal rotating blade disc, a thinning shovel and a driving ground wheel; the mounting frame is fixedly connected to the four-bar floating mechanism, and the four-bar floating mechanism is connected to the frame; the gearbox is installed on the mounting frame, and a first sprocket is installed on the input shaft of the gearbox; the output shaft of the gearbox extends vertically to the bottom of the mounting frame and is connected to the horizontal rotating blade disc, and thinning shovels are installed in pairs at the bottom of the horizontal rotating blade disc; a driving ground wheel is installed at the bottom of the mounting frame, and the driving ground wheel is installed on the driving wheel shaft; a second sprocket is installed on the driving wheel shaft; the first sprocket and the second sprocket are connected by a chain; a rectangular mounting hole is provided on the horizontal rotating blade disc, and the top of the thinning shovel is installed in the rectangular mounting hole; the thinning shovel comprises a mounting plate, a vertical pipe, and a shovel head; the mounting plate is provided with a mounting hole, a vertical pipe is installed at the bottom of the mounting plate, and a shovel head is installed at the bottom of the vertical pipe, and the shovel head is used for thinning.

2. The tractor-mounted thinning device according to claim 1, characterized in that: The height of the horizontal rotating cutter disc from the ground can be adjusted during installation.

3. The tractor-mounted thinning device according to claim 1, characterized in that: The thinning device is connected to the tractor through a three-point suspension component when working.

4. The tractor-mounted thinning device according to claim 1, characterized in that: A pair of driving wheels are provided, which are respectively connected to the two ends of the driving wheel shaft, and the driving shaft is fixed to the bottom of the mounting frame through a bearing.

5. The tractor-mounted thinning device according to claim 1, characterized in that: A pair of supporting and adjusting wheels are provided.

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