A modular non-blocking rapeseed low-loss picking device

Abstract

The present invention discloses a modular non-blocking rapeseed low-loss picking device, which comprises a picker, a conveying mechanism and an agitator gathering mechanism which are arranged in sequence from front to back; the conveying mechanism comprises an annular conveying belt and a driving mechanism which drives the conveying belt to operate; the picker comprises a picking roller and a shield, the shield comprises a plurality of arc-shaped parts dispersedly arranged in the left-right direction, and there is a gap between adjacent arc-shaped parts; the driving mechanism comprises a plurality of groups of circulating driving components arranged in parallel, and also comprises a rod group overlapped between two adjacent groups of the circulating driving components, the rod group consists of thick rods and thin rods arranged in an alternating manner; the conveying belt is arranged in a circumferential manner, so that the surface of the conveying belt changes regularly in its circumferential direction, so that the seeds dropped during the movement of the rapeseed can be gathered at the trough position, which can effectively inhibit the rolling of the dropped rapeseed seeds on the belt surface and reduce the rolling loss of the seeds.

Description

Technical Field

[0001] The invention relates to the technical field of pickers, and in particular to a modular non-blocking rapeseed low-loss picking device. Background Art

[0002] During the harvesting process of rapeseed crops, it is necessary to go through the staged operations of cutting and drying first and then picking up. The picker is an important component for picking up rapeseed. Although the slide roller picker, which is currently the most widely used in the fields of forage and peanuts in China, can also be used for rapeseed picking operations, it cannot fully meet the needs of picking and harvesting rapeseed due to its own special structural limitations. The applicant's prior application CN207235493U discloses a two-stage picker, which solves the problem of uneven feeding of crops into the auger by adding a conveyor belt. In actual operation, it is difficult to keep the upper surface of the belt level, and the fallen grains will roll along the belt surface and be lost. In addition, the picker in this patent has poor operating effect when picking up scattered straw mats at the edge of the field and straw mats with poor laying uniformity. Patent CN215223222U discloses a picker shield, a picker and a harvester. This picker installs a picking spring tooth mechanism in the shield, and extends the spring teeth from the gap of the shield to perform picking operations, which can achieve good picking effects. However, in this solution, when the rapeseed grass passes through the picker shield, grains will fall into the gap between the shields and cause grain loss. Summary of the invention

[0003] Purpose of the invention: In order to overcome the deficiencies in the prior art, the present invention provides a modular, non-blocking, low-loss rapeseed picking device that can reduce seed loss during the picking process.

[0004] Technical solution: To achieve the above-mentioned purpose, the modular non-blocking rapeseed low-loss picking device of the present invention comprises a picker, a conveying mechanism and an augers and gathering mechanism arranged in sequence from front to back;

[0005] The conveying mechanism comprises an annular conveying belt and a driving mechanism for driving the conveying belt to operate;

[0006] The pick-up device comprises a pick-up roller and a shield, wherein the shield comprises a plurality of arc-shaped parts dispersedly arranged in the left-right direction, and there are gaps between adjacent arc-shaped parts; the pick-up roller comprises a plurality of groups of pick-up assemblies dispersedly installed in the circumferential direction, and each group of the pick-up assemblies has an elastic pick-up part extending from the gap;

[0007] The driving mechanism includes a plurality of groups of circulating drive components arranged in parallel, and also includes a rod group overlapped between two adjacent groups of the circulating drive components, the rod group consisting of thick rods and thin rods arranged in an alternating manner; in this scheme, the number of the circulating drive components is three, and two groups of rod groups are arranged between the three groups of circulating drive components, and the two groups of rod groups correspond to two conveyor belts; the conveyor belt is arranged in a surrounding manner and contacts with all the thick rods and the thin rods, so that the surface of the conveyor belt changes regularly in its surrounding direction.

[0008] By adopting the above structure, by changing the form of the driving mechanism of the conveyor belt to a form in which thick and thin rods are staggered, on the one hand, the conveyor belt is wavy, so that the fallen grains in the process of transporting rapeseed can be gathered at the trough position, which can effectively suppress the rolling of the fallen rapeseed grains on the belt surface and reduce the rolling loss of grains. As the rod group moves, the wavy surface also moves backward, pouring the grains at the trough into the auger collection mechanism, and the wavy belt surface is also conducive to promoting the rapeseed to move toward the auger collection mechanism. On the other hand, the phenomenon of belt deviation when the conveyor belt is driven by the traditional roller can be avoided, and the power transmission is smoother. No tensioning mechanism is required, saving space. In this scheme, one thick rod and two thin rods are arranged in a staggered manner, so that the belt surface of the conveyor belt can be more gently undulated, which can delay belt surface wear and fatigue damage and increase service life.

[0009] Furthermore, the circulating drive assembly is a chain assembly, which includes two sprockets arranged in a front and rear configuration and a chain arranged around the two sprockets, and the chain links of the chain are provided with connecting ears.

[0010] Furthermore, the cross section of the thick rod is U-shaped, and both ends of the thick rod have sheet-shaped connecting parts, the connecting parts are connected to the connecting ears, and the connecting parts are placed on the outside of the connecting ears.

[0011] Furthermore, the thin rod is a round rod, and connecting pieces are fixed at both ends of the thin rod, the connecting pieces are connected to the connecting ears, and the connecting pieces are located on the inner side of the connecting ears.

[0012] By making the thick rod and the thin rod different in thickness and shape, the belt surface support and elasticity of the conveyor belt can be taken into account. The thick rod has a larger size and a U-shaped cross-section, which plays a major supporting role to prevent the belt surface from collapsing; the thin rod is thinner and has a certain degree of elasticity, which can provide elastic support to the belt surface.

[0013] In one solution, the conveyor belt is arranged between thick rods and thin rods, so that the thick rods are located on the inner side of the conveyor belt and the thin rods are located on the outer side of the conveyor belt. In this way, the conveyor belt can be kept taut and pass through all the thick rods and thin rods without the need for additional fixings.

[0014] In another solution, in order to maintain the connection between the conveyor belt and the thin rod so that the conveyor belt is in a taut state, a connection relationship between the conveyor belt and the thin rod can be established through a fixing piece, the fixing piece has an arc-shaped portion arranged around the thin rod, and also has connecting ears located on both sides of the arc-shaped portion, and the connecting ears are fixed relative to the conveyor belt by gluing or riveting.

[0015] Furthermore, it also includes an air suction mechanism, which can suck the rapeseed grains that fall into the gaps between the arc-shaped parts.

[0016] Furthermore, the air suction mechanism includes an air suction branch pipe fixed on the lower side of the inner wall of each of the arc-shaped parts, and also includes a main pipeline connecting all the air suction branches, and the main pipeline is connected to the fan; each of the air suction branch pipes has a strip-shaped suction port on both sides; the lower edge of the suction port is equipped with a flexible guide portion extending into the gap and inclined upward, and the upper edges of the two flexible guide portions corresponding to the two sides of the same gap are in contact with each other.

[0017] Furthermore, the flexible guiding part is a brush or a rubber plate.

[0018] With the above structure, the rapeseed grains that fall into the gap between the arc-shaped parts can be guided by the flexible guide part to roll toward the suction port, and are sucked into the air suction branch pipe by the suction port and merged into the main pipe by the air suction branch pipe, and the main pipe extracts and stores the collected grains. In this way, the grains that fall into the gap can be effectively collected. Since the flexible guide part is flexible and the inclination direction of the flexible guide part follows the movement direction of the elastic picking part, the movement of the elastic picking part will not be hindered. The elastic picking part can smoothly pass through the gap between the two flexible guide parts corresponding to the gap, and basically does not affect the collection of the fallen grains.

[0019] Furthermore, the lower edge of the suction port expands outward, and the flexible guide portion extends along the lower edge, so that the seeds can flow toward the suction port along the flexible guide portion.

[0020] Furthermore, both sides of the arc-shaped member have outward flanges, so that the cross section of the arc-shaped member is U-shaped. With this structure, during the picking process, the grains that fall onto the arc-shaped member can flow along the grooves on the arc-shaped member to the conveying mechanism, and then be conveyed to the auger collection mechanism via the conveying mechanism.

[0021] Furthermore, the picker also includes a fixing plate, both ends of all the arc-shaped members are fixed on the fixing plate, all the air suction branches pass through the fixing plate, and the main pipeline is placed at the rear side of the fixing plate. The structural layout is reasonable and compact, which is convenient for modifying the existing picker to realize air suction recovery of fallen grains.

[0022] Beneficial effects: The modular non-blocking rapeseed low-loss picking device of the present invention has the following beneficial effects:

[0023] (1) By changing the form of the driving mechanism of the conveyor belt to a form in which thick and thin rods are arranged in a staggered manner, on the one hand, the conveyor belt is wavy, so that the rapeseed seeds that fall during the movement can be gathered at the trough position, which can effectively inhibit the rolling of the fallen rapeseed seeds on the belt surface and reduce the rolling loss of seeds. As the rod group moves, the wavy surface also moves backward, pouring the seeds at the trough into the auger collection mechanism. The wavy belt surface is also conducive to promoting the rapeseed to move toward the auger collection mechanism. On the other hand, the phenomenon of belt deviation when the traditional roller drives the conveyor belt can be avoided, and the power transmission is smoother. No tensioning mechanism is required, saving space.

[0024] (2) By providing an air suction mechanism, the rapeseed grains that fall into the gap between the arc-shaped parts can be guided by the flexible guide part to roll toward the suction port, and are sucked into the air suction branch pipe by the suction port and merged into the main pipe by the air suction branch pipe. The main pipe extracts the collected grains for storage. In this way, the grains that fall into the gap can be effectively collected. Since the flexible guide part is flexible and the inclination direction of the flexible guide part follows the movement direction of the elastic picking part, the movement of the elastic picking part will not be hindered. The elastic picking part can smoothly pass through the gap between the two flexible guide parts corresponding to the gap, and basically does not affect the collection of the fallen grains. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a top view of the structure of the modular non-blocking rapeseed low-loss picking device;

[0026] Figure 2 It is a three-dimensional structural diagram of the conveying mechanism;

[0027] Figure 3 for Figure 2 The enlarged structure diagram of part A in the middle;

[0028] Figure 4 It is the combined structural diagram of the conveying mechanism and the rod group;

[0029] Figure 5 It is a cross-sectional structural diagram of the conveying mechanism in the first embodiment;

[0030] Figure 6 A partial cross-sectional structural diagram of the conveying mechanism in the second embodiment;

[0031] Figure 7 This is a structural diagram of the picker;

[0032] Figure 8 for Figure 7 The enlarged structure diagram of part B;

[0033] Fig. 9 It is a layout diagram of the air suction branch pipe and the flexible guide part.

[0034] In the figure: 1-pickup device; 1A-pickup roller; 1B-shield; 11-arc-shaped member; 12-pickup assembly; 12a-elastic pickup member; 2-conveying mechanism; 21-conveying belt; 22-circulation drive assembly; 22a-sprocket; 22b-chain; 22c-connecting ear; 23-thick rod; 23a-connecting part; 24-thin rod; 25-connecting piece; 26-fixing piece; 3-auger collection mechanism; 4-air suction mechanism; 41-air suction branch pipe; 41a-suction port; 42-flexible guide part; 43-main pipeline. DETAILED DESCRIPTION

[0035] The present invention will be further described below in conjunction with the accompanying drawings.

[0036] like Figure 1 The assembled non-blocking rapeseed low-loss picking device shown in the figure comprises a picker 1, a conveying mechanism 2 and an augers and collection mechanism 3 arranged in sequence from front to back; Figure 2 As shown, the conveying mechanism 2 includes an annular conveying belt 21 and a driving mechanism for driving the conveying belt 21 to operate; Figure 7 As shown, the pickup 1 includes a pickup roller 1A and a shield 1B, the shield 1B includes a plurality of arc-shaped parts 11 dispersedly arranged in the left-right direction, and there is a gap between adjacent arc-shaped parts 11; the pickup roller 1A includes a plurality of groups of pickup components 12 dispersedly installed in the circumferential direction, and each group of the pickup components 12 has an elastic pickup component 12a extending from the gap; the driving mechanism includes a plurality of groups of circulating drive components 22 arranged in parallel, and also includes a rod group overlapped between two adjacent groups of the circulating drive components 22, and the rod group is composed of staggered thick rods 23 and thin rods 24; in this embodiment, the number of circulating drive components 22 is three groups, and two groups of rod groups are arranged between the three groups of circulating drive components 22, and the two groups of rod groups correspond to two conveyor belts 21; the conveyor belt 21 is arranged in a surrounding manner and contacts with all the thick rods 23 and the thin rods 24, so that the surface of the conveyor belt 21 changes regularly in its surrounding direction.

[0037] By adopting the above structure, by changing the form of the driving mechanism of the conveyor belt 21 to a form in which thick and thin rods are arranged alternately, on the one hand, the conveyor belt 21 is wavy, so that the fallen grains in the process of transporting rapeseed can be gathered at the trough position, which can effectively inhibit the rolling of the fallen rapeseed grains on the belt surface and reduce the rolling loss of grains. With the movement of the rod group, the wavy surface also moves backward, pouring the grains at the trough into the augers and collecting mechanism 3, and the wavy belt surface is also conducive to promoting the rapeseed to move toward the augers and collecting mechanism 3. On the other hand, the phenomenon of the belt running off when the traditional roller drives the conveyor belt 21 can be avoided, and the power transmission is smoother. No tensioning mechanism is required, saving space. In this embodiment, one thick rod 23 and two thin rods 24 are arranged in an alternate manner, so that the belt surface of the conveyor belt 21 can be made to fluctuate more gently, which can delay the wear and fatigue damage of the belt surface and increase the service life.

[0038] In this embodiment, the circulating drive assembly 22 is a chain assembly, which includes two sprockets 22a arranged in front and rear and a chain 22b arranged around the two sprockets 22a, and the chain links of the chain 22b are provided with connecting ears 22c. Figure 3-4 As shown, the cross section of the thick rod 23 is U-shaped, and the two ends thereof have sheet-shaped connecting parts 23a, the connecting parts 23a are connected to the connecting ears 22c, and the connecting parts 23a are placed on the outside of the connecting ears 22c. The thin rod 24 is a round rod, and the two ends thereof are fixed with connecting pieces 25, the connecting pieces 25 are connected to the connecting ears 22c, and the connecting pieces 25 are placed on the inside of the connecting ears 22c.

[0039] By making the thick rod 23 and the thin rod 24 different in thickness and shape, the belt surface support and belt surface elasticity of the conveyor belt 21 can be taken into account. The thick rod 23 has a larger size and a U-shaped cross-section, which plays a major supporting role to prevent the belt surface from collapsing; the thin rod 24 is thinner and has a certain degree of elasticity, which can elastically support the belt surface.

[0040] In one embodiment, if Figure 5 As shown, the conveyor belt 21 is arranged to be interlaced between the thick rods 23 and the thin rods 24, so that the thick rods 23 are located on the inner side of the conveyor belt 21, and the thin rods 24 are located on the outer side of the conveyor belt 21. In this way, no additional fixing parts are required to keep the conveyor belt 21 taut and pass through all the thick rods 23 and the thin rods 24.

[0041] In another embodiment, in order to maintain the connection between the conveyor belt 21 and the thin rod 24 so that the conveyor belt 21 is in a taut state, the connection relationship between the conveyor belt 21 and the thin rod 24 can be established by a fixing member 26, such as Figure 6In the illustrated embodiment, the fixing member 26 has an arc-shaped portion disposed around the thin rod 24 and also has connecting ears located on both sides of the arc-shaped portion. The connecting ears are fixed relative to the conveyor belt 21 by gluing or riveting.

[0042] The harvesting picking device also includes an air suction mechanism 4, which can suck the rapeseed grains that fall into the gaps between the arc-shaped members 11. Figure 7-8 As shown, the air suction mechanism 4 includes an air suction branch pipe 41 fixed to the lower middle side of the inner wall of each arc-shaped member 11, and also includes a main pipeline 43 connecting all the air suction branch pipes 41, and the main pipeline 43 is connected to the fan; Fig. 9 As shown, each of the air suction branch pipes 41 has strip-shaped suction ports 41a on both sides; the lower edge of the suction port 41a is provided with a flexible guide portion 42 extending into the gap and tilted upward, and the upper edges of the two corresponding flexible guide portions 42 on both sides of the same gap are in contact with each other. The flexible guide portion 42 is a brush or a rubber plate.

[0043] With the above structure, the rapeseed grains falling into the gap between the arc-shaped members 11 can be guided by the flexible guide part 42 to roll toward the suction port 41a, and are sucked into the air suction branch pipe 41 by the suction port 41a and merged into the main pipe 43 by the air suction branch pipe 41, and the main pipe 43 extracts and stores the collected grains. In this way, the grains falling into the gap can be effectively collected. Since the flexible guide part 42 is flexible and the inclination direction of the flexible guide part 42 follows the movement direction of the elastic pick-up member 12a, the movement of the elastic pick-up member 12a will not be hindered, and the elastic pick-up member 12a can smoothly pass through the gap between the two flexible guide parts 42 corresponding to the gap, and basically does not affect the collection of the fallen grains.

[0044] The lower edge of the suction port 41 a expands outward, and the flexible guide portion 42 extends along the lower edge, so that the grains can flow toward the suction port 41 a along the flexible guide portion 42 .

[0045] The arc-shaped member 11 has outward flanges on both sides, so that the cross section of the arc-shaped member 11 is U-shaped. With this structure, during the picking process, the grains that fall onto the arc-shaped member 11 can flow along the grooves on the arc-shaped member 11 to the conveying mechanism 2, and are conveyed to the auger collection mechanism 3 via the conveying mechanism 2.

[0046] The picker 1 further includes a fixing plate 13, both ends of all the arc-shaped members 11 are fixed on the fixing plate 13, all the air suction branches 41 pass through the fixing plate 13, and the main pipeline 43 is placed at the rear side of the fixing plate 13. The structural layout is reasonable and compact, and it is convenient to modify the existing picker 1 to realize air suction recovery of fallen grains.

[0047] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principle of the present invention. These improvements and modifications should also be regarded as the scope of protection of the present invention.

Claims

1. A modular non-blocking rapeseed low-loss picking device, comprising a picker (1), a conveying mechanism (2) and an auger collecting mechanism (3) arranged in sequence from front to back; The conveying mechanism (2) comprises an annular conveying belt (21) and a driving mechanism for driving the conveying belt (21) to operate; The picker (1) comprises a pick-up roller (1A) and a shield (1B); the shield (1B) comprises a plurality of arc-shaped parts (11) dispersedly arranged in the left-right direction, and gaps are provided between adjacent arc-shaped parts (11); the pick-up roller (1A) comprises an elastic pick-up part (12a) extending from the gap; Features: The driving mechanism comprises a plurality of groups of circulating driving components (22) arranged in parallel, and also comprises a rod group overlapped between two adjacent groups of the circulating driving components (22), wherein the rod group is composed of thick rods (23) and thin rods (24) arranged in a staggered manner; the conveying belt (21) is arranged in a circumferential manner, so that the surface of the conveying belt (21) changes regularly in a concave and convex manner in its circumferential direction; It also comprises an air suction mechanism (4), wherein the air suction mechanism (4) is capable of sucking rapeseed grains that fall into the gaps between the arc-shaped members (11); The air suction mechanism (4) comprises an air suction branch pipe (41) fixed to the lower middle side of the inner wall of each arc-shaped member (11), and also comprises a main pipe (43) connecting all the air suction branch pipes (41), wherein the main pipe (43) is connected to a fan; both sides of each of the air suction branch pipes (41) are provided with a strip-shaped suction port (41a); a flexible guide portion (42) extending into the gap and tilted upward is installed at the lower edge of the suction port (41a), and the upper edges of the two corresponding flexible guide portions (42) on both sides of the same gap are in contact with each other.

2. The modular non-blocking rapeseed low-loss picking device according to claim 1 is characterized in that: The circulating drive assembly (22) is a chain assembly, comprising two sprockets (22a) arranged in a front and rear arrangement and a chain (22b) arranged around the two sprockets (22a), wherein the chain links of the chain (22b) are provided with connecting ears (22c).

3. The modular non-blocking rapeseed low-loss picking device according to claim 2 is characterized in that: The cross section of the thick rod (23) is U-shaped, and has sheet-shaped connecting portions (23a) at both ends, wherein the connecting portions (23a) are connected to the connecting ears (22c).

4. The modular non-blocking rapeseed low-loss picking device according to claim 2 is characterized in that: The thin rod (24) is a round rod, with connecting pieces (25) fixed at both ends, and the connecting pieces (25) are connected to the connecting ears (22c).

5. The modular non-blocking rapeseed low-loss picking device according to claim 1 is characterized in that: The flexible guiding part (42) is a brush or a rubber plate.

6. The modular non-blocking rapeseed low-loss picking device according to claim 1 is characterized in that: The lower edge of the suction port (41a) expands outwards, and the flexible guide portion (42) extends along the lower edge.

7. The modular non-blocking rapeseed low-loss picking device according to claim 1 is characterized in that: Both sides of the arc-shaped member (11) have outward flanged portions, so that the cross-section of the arc-shaped member (11) is U-shaped.

8. The modular non-blocking rapeseed low-loss picking device according to claim 1 is characterized in that: The picker (1) further comprises a fixing plate (13), both ends of all the arc-shaped members (11) are fixed on the fixing plate (13), all the air suction branch pipes (41) pass through the fixing plate (13), and the main pipe (43) is placed on the rear side of the fixing plate (13).

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