Seed cutting machine capable of adjusting cutting length

Abstract

The invention discloses a seed cutting machine capable of adjusting the cutting length. The seed cutting machine comprises a support; the feeding conveyor belt is mounted on the bracket; the compression roller is mounted on the bracket and is positioned above the rear end of the feeding conveyor belt; the seed cutting box is mounted on the bracket and is positioned behind the compression roller; the seed cutting box comprises a seed cutting frame; each eccentric wheel set comprises two eccentric wheels which are oppositely distributed left and right; one eccentric wheel frame is mounted on each eccentric wheel; each eccentric wheel frame is connected with the seed cutting frame through a moving mechanism in a manner of moving up and down and moving back and forth; one blade is arranged between the two eccentric wheel frames of each eccentric wheel set, and the two blades are oppositely arranged up and down; a gear transmission mechanism; and a driving device. By adopting the seed cutting machine, the cutting length of sugarcane seeds can be adjusted; the structure that the compression roller is matched with the feeding conveying belt can prevent the sugarcane from slipping on the feeding conveying belt to cause uncertainty of the seed cutting length, and the seed cutting quality is guaranteed.

Description

Technical Field

[0001] The invention relates to the technical field of agricultural machinery and equipment, in particular to a seed cutter with adjustable cutting length. Background Art

[0002] Sugarcane seed cutting is an important agricultural technology, which involves cutting sugarcane seed stems into segments suitable for planting to improve the germination rate and survival rate of sugarcane. At present, the main methods of sugarcane seed cutting include manual cutting and cutting machine cutting. Manual cutting has low work efficiency, and it is difficult to ensure the cutting length and quality. Cutting machine cutting is used to cut sugarcane seeds into segments suitable for planting, improve cutting efficiency, and reduce manual labor intensity; but the cutting length of existing cutters is difficult to adjust. Summary of the invention

[0003] The object of the present invention is to provide a seed cutter with adjustable cutting length, so as to overcome the disadvantage that the cutting length of the existing seed cutter is difficult to adjust.

[0004] To achieve the above-mentioned purpose, the present invention provides a seed cutter with adjustable cutting length, comprising: a bracket; a feeding conveyor belt, which is mounted on the bracket, and the transportation direction of the feeding conveyor belt is distributed from front to back, and is used to transport sugarcane seeds; a pressure roller, which is mounted on the bracket in a rotatable manner and is located above the rear end of the feeding conveyor belt, and the pressure roller and the feeding conveyor belt are spaced apart from each other to form a sugarcane pressing gap, and the axis of the pressure roller is distributed in the left-right direction; a seed cutting box, which is mounted on the bracket and is located behind the pressure roller, and is used to cut sugarcane seeds; wherein the seed cutting box comprises: a seed cutting frame, which is mounted on the bracket and is located behind the pressure roller; two eccentric wheel groups, the two eccentric wheel groups are relatively distributed up and down, and each of the eccentric wheel groups comprises two Eccentric wheels relatively distributed on the left and right, two of the eccentric wheels are rotatably mounted on the seed cutting frame; one of the eccentric wheel groups is connected by a connecting shaft; an eccentric wheel frame, one eccentric wheel frame is mounted on each of the eccentric wheels, and the eccentric wheel frame is connected to the corresponding eccentric wheel; each eccentric wheel frame is connected to the seed cutting frame by a moving mechanism in a manner that it can move up and down and forward and backward; two blades, one blade is provided between the two eccentric wheel frames of each eccentric wheel group, and the two blades are arranged opposite to each other up and down; and a gear transmission mechanism, the two eccentric wheel groups are connected by the gear transmission mechanism; and a driving device, which is used to drive the feeding transmission belt, the pressure roller and each eccentric wheel group to rotate.

[0005] Preferably, in the above technical solution, the gear transmission mechanism includes four gears, one gear is provided on the outer side of the rotating shaft of each eccentric wheel, and the two gears of the two eccentric wheels located on the same side are meshed and connected with each other.

[0006] Preferably, in the above technical solution, the pressure roller is provided with a plurality of evenly distributed rubber pressure plates along its circumferential direction.

[0007] Preferably, in the above technical solution, the height of the sugarcane pressing gap is adjustable.

[0008] Preferably, in the above technical solution, the driving device includes: a power device, which is used to provide rotational force; a reversing mechanism, which is used to connect the rotating shaft of the active roller of the feeding conveyor belt and the rotating shaft of the pressure roller; a first belt transmission mechanism, which is used to connect the power device and the rotating shaft of the active roller; and a second belt transmission mechanism, which is used to connect the rotating shaft of the active roller and the gear transmission mechanism.

[0009] Preferably, in the above technical solution, the reversing mechanism includes: a connecting arm, an upper end of which is provided with an arc-shaped hole opening toward the front and downward, and the rotating shaft of the pressure roller passes through the arc-shaped hole and can slide along the arc-shaped hole; a fixed arm, which is installed at the lower end of the connecting arm, and the lower ends of the connecting arm and the fixed arm are both provided with through holes for the rotating shaft of the active roller of the feeding conveyor belt to pass through; three fixed gears are provided in the fixed arm and meshed with each other in sequence along the up and down directions; wherein the fixed gear located at the bottom is fixedly connected to the rotating shaft of the active roller; and a movable arm, a lower end of which is rotatably connected to the upper end of the fixed arm, and the upper end of the movable arm is provided with a through hole for the rotating shaft of the pressure roller to pass through; a movable gear is provided in the movable arm and meshed with the fixed gear located at the top, and the movable gear is fixedly connected to the rotating shaft of the pressure roller; wherein the pressure roller is connected to the bracket in a manner that it can slide up and down.

[0010] Preferably, in the above technical scheme, the moving mechanism comprises: a transverse guide rail group, the seed cutting frame is provided with a transverse guide rail group at the positions corresponding to the left and right ends of the two blades, each of the transverse guide rail groups comprises at least two transverse guide rails parallel to each other, and the length of each transverse guide rail is distributed along the front-to-back direction; a transverse moving frame, each of the transverse guide rail groups is provided with a transverse moving frame, each of the transverse moving frames spans between the corresponding two transverse guide rails, and each of the transverse moving frames is provided with a transverse slider slidably connected with the transverse guide rail at the position corresponding to each corresponding transverse guide rail; and a vertical guide rail group, each of the transverse moving frames is provided with a vertical guide rail group on the inner side surface, each of the vertical guide rail groups comprises at least two vertical guide rails parallel to each other, and the length of each vertical guide rail is distributed along the upper and lower directions; each of the eccentric wheel frames spans between the corresponding two vertical guide rails, and each of the eccentric wheel frames is provided with a vertical slider slidably connected with the vertical guide rail at the position corresponding to each corresponding vertical guide rail.

[0011] Compared with the prior art, the present invention has the following beneficial effects:

[0012] 1. The seed cutter of the present invention can adjust the cutting length of the sugarcane seeds by adjusting the speed of the feeding transmission belt or the rotation speed of the two eccentric wheel groups, and the adjustment method is simple and convenient; wherein, the pressing roller cooperates with the structure of the feeding conveyor belt, that is, the sugarcane pressing gap can always clamp the sugarcane seeds and transport the sugarcane seeds to the seed cutting box at the rear, thereby avoiding the uncertainty of the cutting length caused by the sugarcane slipping on the feeding conveyor belt, and ensuring the cutting quality.

[0013] 2. The pressure roller of the present invention is provided with a plurality of evenly distributed rubber pressure plates along its circumferential direction, which can not only improve the sugarcane pressing and conveying effect, but also avoid damaging the sugarcane buds and improve the survival rate of the sugarcane seeds.

[0014] 3. The height of the sugarcane pressing gap of the present invention can be adjusted, which can adapt to sugarcane seeds of different diameters and avoid the phenomenon of sugarcane jamming, thereby ensuring that the seed cutting work can be carried out normally. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a three-dimensional structural schematic diagram of a seed cutter with adjustable cutting length according to the present invention.

[0016] Figure 2 It is a schematic diagram of the three-dimensional structure of the seed cutter with adjustable cutting length according to the present invention from another perspective.

[0017] Figure 3 2 is a schematic diagram of the structure of a seed cutting box according to the present invention.

[0018] Figure 4 It is a schematic diagram of the connection structure among the reversing mechanism, the pressure roller and the active roller according to the present invention.

[0019] Description of main reference numerals:

[0020] 1-feeding conveyor belt, 11-active roller, 2-second belt transmission mechanism, 3-pressure roller, 31-rubber pressure plate, 4-seed cutting box, 41-gear, 42-seed cutting frame, 43-connecting shaft, 44-eccentric wheel, 45-eccentric wheel frame, 46-vertical guide rail, 47-transverse guide rail, 48-transverse moving frame, 49-blade, 5-reversing mechanism, 51-movable arm, 52-movable gear, 53-arc hole, 54-fixed arm, 55-fixed gear, 56-connecting arm, 6-bracket, 7-diesel engine. DETAILED DESCRIPTION

[0021] The specific implementation modes of the present invention are described in detail below in conjunction with the accompanying drawings, but it should be understood that the protection scope of the present invention is not limited by the specific implementation modes.

[0022] Unless explicitly stated otherwise, throughout the specification and claims, the term “comprise” or variations such as “include” or “comprising”, etc., will be understood to include the stated elements or components but not to exclude other elements or components.

[0023] Figures 1 to 4 The schematic diagram of the structure of a seed cutter with adjustable cutting length according to a preferred embodiment of the present invention is shown. The seed cutter comprises a support 6, a feeding conveyor belt 1, a pressure roller 3, a seed cutting box 4 and a driving device.

[0024] refer to Figures 1 to 4, the feeding conveyor belt 1 is installed on the bracket 6, and the transportation direction of the feeding conveyor belt 1 is distributed from front to back, which is used to transport sugarcane seeds backward. The pressure roller 3 is installed on the bracket 6 in a rotatable manner and is located above the rear end of the feeding conveyor belt 1. The pressure roller 3 and the feeding conveyor belt 1 are spaced up and down to form a sugarcane pressing gap, and the axis of the pressure roller 3 is distributed in the left and right direction; the pressure roller 3 cooperates with the structure of the feeding conveyor belt 1, that is, the sugarcane pressing gap can always clamp the sugarcane seeds and transport the sugarcane seeds to the seed cutting box 4 at the rear, so as to avoid the uncertainty of the cutting length caused by the slipping of sugarcane on the feeding conveyor belt 1 and ensure the quality of the cutting. The seed cutting box 4 is installed on the bracket 6 and located behind the pressure roller 3, and is used to cut the sugarcane seeds. Among them, the seed cutting box 4 includes a seed cutting frame 42, two eccentric wheel groups, an eccentric wheel frame 45, two blades 49 and a gear transmission mechanism. The seed cutting frame 42 is installed on the bracket 6 and located behind the pressure roller 3. The two eccentric wheel groups are relatively distributed up and down, and each eccentric wheel group includes two eccentric wheels 44 relatively distributed left and right. The two eccentric wheels 44 are rotatably mounted on the seed cutting frame 42 through a rotating shaft. The rotating shafts between one of the eccentric wheel groups are connected by a connecting shaft 43, which is convenient for driving the eccentric wheel 44 to rotate. An eccentric wheel frame 45 is installed on each eccentric wheel 44, and the eccentric wheel frame 45 is eccentrically connected to the corresponding eccentric wheel 44. Each eccentric wheel frame 45 is connected to the seed cutting frame 42 through a moving mechanism in a manner that it can move up and down and move forward and backward. A blade 49 is provided between the two eccentric wheel frames 45 of each eccentric wheel group, and the two blades 49 are arranged relatively up and down to cut sugarcane seeds. The two eccentric wheel groups are connected by a gear transmission mechanism, which is used to drive the upper and lower eccentric wheel groups to rotate toward each other. Through the rotation of the eccentric wheel 44, the eccentric wheel frame 45 can be driven to move in the up and down direction and the front and back direction at the same time, thereby driving the two blades 49 to close and open each other, playing a seed cutting role. The driving device is used to drive the feeding transmission belt, the pressure roller 3 and each eccentric wheel group to rotate, so that the feeding conveyor belt 1 conveys the sugarcane seeds backwards. After the sugarcane seeds are conveyed backwards to the bottom of the pressure roller 3, the pressure roller 3 and the feeding conveyor belt 1 clamp each other and convey them backwards, so that the sugarcane seeds are conveyed to the seed cutting box 4, and finally the sugarcane seeds are cut by the seed cutting box 4. The eccentric wheel group structure can realize feeding and cutting of sugarcane seeds. The cutting length of the sugarcane seeds can be adjusted by adjusting the speed of the feeding transmission belt or the rotation speed of the two eccentric wheel groups, and the adjustment method is simple and convenient.

[0025] refer to Figures 1 to 3 Preferably, the gear transmission mechanism includes four gears 41, and a gear 41 is provided on the outer side of the rotating shaft of each eccentric wheel 44. The two gears 41 of the two eccentric wheels 44 on the same side are meshed and connected with each other. Through the action of the gears 41, the two eccentric wheels 44 on the same side can be driven to rotate inward relative to each other, thereby driving the two blades 49 to open and close and cut off the sugarcane seeds.

[0026] refer to Figure 1, Figure 2 and Figure 4 The pressing roller 3 may be a smooth roller structure made of rubber, and the pressing roller 3 may also be provided with a plurality of evenly distributed rubber pressing plates 31 along its circumferential direction. Preferably, the pressing roller 3 is provided with a plurality of evenly distributed rubber pressing plates 31 along its circumferential direction, which can not only improve the sugarcane pressing and conveying effect, but also avoid damaging the sugarcane buds and improve the survival rate of the sugarcane seeds.

[0027] refer to Figure 1 , Figure 2 and Figure 4 The height of the sugarcane pressing gap can be fixed or adjustable. Preferably, the height of the sugarcane pressing gap can be adjusted so that it can adapt to sugarcane seeds of different diameters and avoid the phenomenon of sugarcane jamming, thereby ensuring that the seed cutting work can proceed normally.

[0028] refer to Figures 1 to 4 , a driving device may be provided on each of the pressure roller 3, the feeding conveyor belt 1 and the seed cutting box 4, and each device is driven to rotate by a separate driving device; or all devices may be driven to rotate by one driving device. Preferably, the driving device includes a power device, a reversing mechanism 5, a first belt transmission mechanism and a second belt transmission mechanism 2. The power device is used to provide a rotational force, wherein the power device may be a diesel engine 7 or a motor or the like. The reversing mechanism 5 is used to connect the rotating shaft of the active roller 11 of the feeding conveyor belt 1 and the rotating shaft of the pressure roller 3, and is used to transmit the rotational force of the active roller 11 to the pressure roller 3, and can change the direction of the pressure roller 3, so that the active roller 11 and the pressure roller 3 rotate inwardly relative to each other, and play the role of clamping and conveying the sugarcane seeds backward. The first belt transmission mechanism is used to connect the rotating shaft of the power device and the active roller 11, and is used to transmit the rotational force of the power device to the active roller 11, driving the feeding conveyor belt 1 to rotate backward to convey the sugarcane seeds. The second belt transmission mechanism 2 is used to connect the rotating shaft of the active drum 11 and the rotating shaft of one of the gears 41 of the gear transmission mechanism, and is used to transmit the rotating force of the active drum 11 to the gear 41 of the seed cutting box 4, driving the eccentric wheel 44 to rotate, thereby driving the blade 49 to open and close, so as to play a seed cutting role, so as to match the feeding speed of the feeding conveyor belt 1 with the seed cutting speed of the seed cutting box 4. If it is necessary to adjust the cutting length of the sugarcane seeds, the synchronous pulley group of the second belt transmission mechanism 2 can be replaced to adjust the transmission ratio.

[0029] refer to Figure 1 , Figure 2 and Figure 4Preferably, the reversing mechanism 5 includes a connecting arm 56, a fixed arm 54 and a movable arm 51. The upper end of the connecting arm 56 is provided with an arc-shaped hole 53 opening toward the front and downward, and the rotating shaft of the pressing roller 3 passes through the arc-shaped hole 53 and can slide along the arc-shaped hole 53, so as to adjust the height of the pressing roller 3, that is, adjust the height of the sugarcane pressing gap. The fixed arm 54 is installed at the lower end of the connecting arm 56, and the lower end of the connecting arm 56 and the lower end of the fixed arm 54 are both provided with a through hole for the rotating shaft of the active roller 11 of the feeding conveyor belt 1 to pass through. Three fixed gears 55 are provided in the fixed arm 54, which are meshed and connected with each other in sequence along the up and down directions, and each fixed gear 55 can rotate. Among them, the fixed gear 55 located at the bottom is fixedly connected to the rotating shaft of the active roller 11. The lower end of the movable arm 51 is rotatably connected to the upper end of the fixed arm 54, and a through hole is provided at the upper end of the movable arm 51 for the rotation shaft of the pressure roller 3 to pass through, and the rotation shaft of the pressure roller 3 is sequentially arranged on the arc hole 53 and the through hole of the movable arm 51. A movable gear 52 is provided in the movable arm 51, which is meshed and connected with the fixed gear 55 located above, and the movable gear 52 is fixedly connected to the rotation shaft of the pressure roller 3. The pressure roller 3 is connected to the bracket 6 in a manner that it can slide up and down. Through the action of three fixed gears 55 and one movable gear 52, the rotation force of the active roller 11 can be transmitted to the pressure roller 3, and the direction of the pressure roller 3 can be changed, so that the feeding conveyor belt 1 and the pressure roller 3 rotate inward relative to each other; and when the diameter of the sugarcane seeds is large, the sugarcane seeds are bent, or multiple sugarcane seeds are transported at one time, the movable arm 51 can swing, so that the pressure roller 3 slides along the arc hole 53, drives the pressure roller 3 to slide up and down relative to the bracket 6, adjusts the height of the sugarcane pressing gap, avoids the phenomenon of sugarcane jamming, and ensures that the seed cutting work can be carried out normally.

[0030] refer to Figures 1 to 3Preferably, the moving mechanism includes a transverse guide rail group, a transverse moving frame 48 and a vertical guide rail group. The seed cutting frame 42 is provided with a transverse guide rail group at the positions corresponding to the left and right ends of the two blades 49, and each transverse guide rail group includes at least two transverse guide rails 47 parallel to each other, and the length of each transverse guide rail 47 is distributed along the front-to-back direction. A transverse moving frame 48 is provided on each transverse guide rail group, and each transverse moving frame 48 spans between the corresponding two transverse guide rails 47, and each transverse moving frame 48 is provided with a transverse slider that is slidably connected with the transverse guide rail 47 at the position corresponding to each corresponding transverse guide rail 47, so that the transverse moving frame 48 can move forward and backward. A vertical guide rail group is provided on the inner side of each transverse moving frame 48, and each vertical guide rail group includes at least two vertical guide rails 46 parallel to each other, and the length of each vertical guide rail 46 is distributed along the up-down direction. Each eccentric wheel frame 45 spans between two corresponding vertical guide rails 46, and each eccentric wheel frame 45 is provided with a vertical slider slidably connected with the vertical guide rail 46 at a position corresponding to each corresponding vertical guide rail 46, so that the eccentric wheel frame 45 can move up and down relative to the transverse moving frame 48. Through the rotation of the eccentric wheel 44 and the action of the moving mechanism, the two blades 49 can be driven to move in the up and down direction and the front and back direction at the same time, thereby driving the two blades 49 to open and close, so as to cut the delivered sugarcane seeds.

[0031] When in use, the feeding transmission belt and the pressure roller 3 can be used to transport the sugarcane seeds into the seed cutting box 4 and cut the sugarcane seeds. The whole machine has a simple structure and can adjust the cutting length of the sugarcane seeds.

[0032] The foregoing description of specific exemplary embodiments of the present invention is for the purpose of illustration and demonstration. These descriptions are not intended to limit the present invention to the precise form disclosed, and it is clear that many changes and variations can be made based on the above teachings. The purpose of selecting and describing the exemplary embodiments is to explain the specific principles of the present invention and its practical application, so that those skilled in the art can realize and utilize various different exemplary embodiments of the present invention and various different selections and changes. The scope of the present invention is intended to be limited by the claims and their equivalents.

Claims

1. A seed cutter with adjustable cutting length, characterized in that: include: Bracket; A feeding conveyor belt is installed on the bracket, and the transportation direction of the feeding conveyor belt is distributed from front to back, and is used for conveying sugarcane seeds; A pressing roller is rotatably mounted on the bracket and is located above the rear end of the feeding conveyor belt. The pressing roller and the feeding conveyor belt are spaced apart from each other to form a sugarcane pressing gap, and the axis of the pressing roller is distributed in the left-right direction. A seed cutting box, which is mounted on the support and located behind the pressing roller, is used to cut the sugarcane seeds; wherein the seed cutting box comprises: A seed cutting frame, which is mounted on the support and located behind the pressing roller; Two eccentric wheel groups, the two eccentric wheel groups are relatively distributed up and down, and each of the eccentric wheel groups includes two eccentric wheels relatively distributed left and right, and the two eccentric wheels are rotatably mounted on the seed cutting frame; one of the eccentric wheel groups is connected by a connecting shaft; An eccentric wheel frame, one eccentric wheel frame is installed on each eccentric wheel, and the eccentric wheel frame is connected to the corresponding eccentric wheel; each eccentric wheel frame is connected to the seed cutting frame through a moving mechanism in a manner that it can move up and down and forward and backward; Two blades, one of which is provided between the two eccentric wheel frames of each eccentric wheel group, and the two blades are arranged opposite to each other up and down; and A gear transmission mechanism, through which the two eccentric wheel sets are connected; and A driving device is used to drive the feeding transmission belt, the pressure roller and each eccentric wheel group to rotate.

2. The seed cutter with adjustable cutting length according to claim 1, characterized in that: The gear transmission mechanism includes four gears. One gear is provided on the outer side of the rotating shaft of each eccentric wheel. The two gears of the two eccentric wheels located on the same side are meshed and connected with each other.

3. The seed cutter with adjustable cutting length according to claim 1, characterized in that: The pressure roller is provided with a plurality of evenly distributed rubber pressure plates along its circumferential direction.

4. The seed cutter with adjustable cutting length according to claim 1, characterized in that: The height of the sugarcane pressing gap can be adjusted.

5. The seed cutter with adjustable cutting length according to claim 1, characterized in that: The driving device comprises: A power device for providing rotational force; A reversing mechanism, which is used to connect the rotating shaft of the driving roller of the feeding conveyor belt and the rotating shaft of the pressing roller; A first belt transmission mechanism, which is used to connect the power device and the rotating shaft of the active drum; and The second belt transmission mechanism is used to connect the rotating shaft of the active roller and the gear transmission mechanism.

6. The seed cutter with adjustable cutting length according to claim 5, characterized in that: The reversing mechanism comprises: A connecting arm, the upper end of which is provided with an arc-shaped hole opening toward the front and downward, and the rotating shaft of the pressing roller passes through the arc-shaped hole and can slide along the arc-shaped hole; A fixed arm, which is mounted on the lower end of the connecting arm, and the lower ends of the connecting arm and the fixed arm are both provided with through holes for the rotating shaft of the driving roller of the feeding conveyor belt to pass through; three fixed gears are provided in the fixed arm and are meshed and connected with each other in sequence along the up and down directions; wherein the fixed gear located at the bottom is fixedly connected to the rotating shaft of the driving roller; and A movable arm, whose lower end is rotatably connected to the upper end of the fixed arm, and the upper end of the movable arm is provided with a through hole for the rotating shaft of the pressure roller to pass through; a movable gear is provided in the movable arm and is meshed with the fixed gear located above, and the movable gear is fixedly connected to the rotating shaft of the pressure roller; wherein the pressure roller is connected to the bracket in a manner that it can slide up and down.

7. The seed cutter with adjustable cutting length according to claim 1, characterized in that: The moving mechanism comprises: A transverse guide rail group, wherein the seed cutting frame is provided with a transverse guide rail group at positions corresponding to the left and right ends of the two blades, each of the transverse guide rail groups comprises at least two transverse guide rails parallel to each other, and the length of each transverse guide rail is distributed along the front-to-back direction; A transverse moving frame, each of the transverse guide rails is provided with one transverse moving frame, each of the transverse moving frames spans between two corresponding transverse guide rails, and each of the transverse moving frames is provided with a transverse sliding block slidably connected with the transverse guide rail at a position corresponding to each corresponding transverse guide rail; and A vertical guide rail group, each of the horizontal movable frames is provided with a vertical guide rail group on the inner side, each of the vertical guide rail groups includes at least two front-to-rear parallel vertical guide rails, and the length of each vertical guide rail is distributed along the up-down direction; each of the eccentric wheel frames spans between the corresponding two vertical guide rails, and each of the eccentric wheel frames is provided with a vertical slider that is slidably connected with the vertical guide rail at a position corresponding to each corresponding vertical guide rail.

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