An electric drive pre-cutting sugarcane metering device

Abstract

The invention discloses an electric-driven pre-cut sugarcane seeding device, which belongs to the technical field of planting machinery. The electric-driven pre-cut sugarcane seeding device comprises a frame, a sugarcane seed filling mechanism, a secondary roller transmission mechanism, a secondary seeding mechanism, a seed guiding mechanism and a reseeding mechanism. The sugarcane seed filling mechanism adds sugarcane seeds to the primary seeding mechanism, the primary seeding mechanism discharges the sugarcane seeds to the secondary roller transmission mechanism, the secondary roller transmission mechanism adjusts and sorts the sugarcane seeds and transmits them to the secondary seeding mechanism, and finally the secondary seeding mechanism discharges the sugarcane seeds to both sides and enters the seed guiding mechanism to realize double-row seeding. When the infrared switch detects the missing seeds, the reseeding mechanism timely reseedes. The whole process only needs to manually supplement the sugarcane seeds of the seed frame and the reseeding mechanism to fully automatically realize the whole seeding process, has a high degree of automation, stable operation, solves the problems of seed jamming and missing seeds of the sugarcane seeding device, and greatly improves the seeding efficiency and accuracy.

Description

Technical Field

[0001] The present invention relates to the technical field of planting machinery, and particularly relates to an electric-driven pre-cut sugarcane metering and dropping device. Background Art

[0002] The mechanization level of the sugarcane planting link is low. At present, planters are mainly divided into real-time seed cutting type and pre-cut seed type. When the real-time seed cutting sugarcane planter operates, manual feeding of seeds is required, with a large labor intensity. The manual feeding speed varies, resulting in poor metering and dropping uniformity and low metering and dropping efficiency. While the pre-cut seed type sugarcane planter can operate without manual labor, with a high degree of automation and can improve production efficiency.

[0003] Among the current pre-cut seed planters, foreign large-scale planters have high efficiency, but also have high rates of missing and re-planting. Domestic planters generally have problems such as seed jamming, uneven metering and dropping, and high bud injury rate, and none of them can achieve high-speed and precise metering and dropping. Therefore, it is necessary to design a reasonable high-speed and precise electric-driven pre-cut sugarcane metering and dropping device to solve the above problems. Summary of the Invention

[0004] The purpose of the present invention is to overcome the problems in the prior art and provide an electric-driven pre-cut sugarcane metering and dropping device, which can solve problems such as seed jamming, uneven metering and dropping, and high bud injury rate in the pre-cut seed planter, and can perform high-speed and precise metering and dropping.

[0005] The present invention provides an electric-driven pre-cut sugarcane metering and dropping device, including a frame. A sugarcane seed filling mechanism, a primary metering and dropping mechanism, a secondary roller transmission mechanism, a secondary metering and dropping mechanism, and a seed guiding mechanism are sequentially arranged on the frame from top to bottom. A supplementary seeding mechanism is arranged on one side of the seed guiding mechanism. The device also includes a primary infrared detection switch arranged in the primary metering and dropping mechanism. The primary metering and dropping mechanism includes a primary seed box, and the remaining amount of sugarcane seeds in the primary seed box is detected by identifying whether there is sugarcane blocking at the position where the primary infrared detection switch is located. A secondary infrared detection switch is arranged on the secondary roller transmission mechanism. The secondary roller transmission mechanism includes a secondary seed box, and the remaining amount of sugarcane seeds in the secondary seed box is detected by identifying whether there is sugarcane blocking at the position where the secondary infrared detection switch is located. A metering and dropping infrared detection switch is arranged on the secondary metering and dropping mechanism. The secondary metering and dropping mechanism includes a secondary seed storage box, and the remaining amount of sugarcane seeds in the secondary seed box is detected by identifying whether there is sugarcane blocking at the position where the metering and dropping infrared detection switch is located. An outlet infrared detection switch is arranged on the seed guiding mechanism. If the outlet infrared detection switch does not detect sugarcane blocking, it indicates that seed leakage occurs at this time, and then the supplementary seeding mechanism performs supplementary seeding.

[0006] Preferably, the sugarcane seed filling mechanism includes a filling motor fixed on the frame, and the output shaft of the filling motor is arranged perpendicular to the frame. Four filling vertical bearing seats and a pair of spring switches are fixedly arranged on the frame. A seed box is placed on the frame, and a cover plate is slidably connected to the bottom of the seed box. Both sides of the cover plate are connected to the pair of spring switches. Additionally, a pair of first sprockets and a pair of second sprockets are provided. The first sprockets and the second sprockets are connected by a filling chain. The output shaft of the filling motor is connected to a first optical axis through a filling coupling. The first optical axis is inserted through the pair of first sprockets. The pair of second sprockets are connected by a second optical axis. Four push plates are evenly arranged on the two chains. When the push plates move, they push the cover plate to open the bottom of the seed box, causing the sugarcane seeds in the seed box to fall.

[0007] Preferably, the primary seed discharging mechanism includes a primary motor fixed on the frame. Additionally, two primary vertical bearing seats are provided. The primary motor is fixedly connected to a primary seed discharging roller dial through a primary coupling. The primary seed box is placed below the seed box. A tension spring mounting bracket is fixedly provided on one side of the primary seed box. The tension spring mounting bracket is fixedly connected to a baffle through a primary tension spring. The baffle is hinged at the outlet position of the primary seed box to control the falling of sugarcane seeds.

[0008] Preferably, the primary infrared detection switch is fixed in the middle of the primary seed box and the detection end is placed inside the primary seed box. The primary infrared detection switch judges whether there is sugarcane blocking at the detection position, so as to judge the remaining amount of sugarcane seeds in the primary seed box, and decides to stop the operation of the filling motor through a signal. When the primary infrared detection switch does not detect sugarcane blocking, at this time, the remaining amount of sugarcane in the primary seed box is not much, and the filling motor starts to move to replenish sugarcane seeds in time.

[0009] Preferably, the secondary roller transmission mechanism further includes an electric sprocket roller installed at the bottom of the secondary seed box. A roller drive chain is sleeved on the electric sprocket roller. A number of driven sprocket rollers horizontally placed with the electric sprocket roller are provided on the frame. The roller drive chain is sleeved on the number of driven sprocket rollers. A secondary inlet electric roller is provided at the inlet of the secondary seed box. A storage tank is provided at the bottom of the secondary seed box on the frame. A storage inlet electric roller is provided at the inlet of the storage tank.

[0010] Preferably, the secondary infrared detection switch is arranged vertically downward above the secondary seed box. When the secondary infrared detection switch does not detect sugarcane blocking, it means that there are too many sugarcane seeds at this position. The operation of the electric sprocket roller is controlled through a signal to prevent the sugarcane seeds in the secondary seed box from being blocked. On the contrary, the secondary roller transmission mechanism starts to operate.

[0011] Preferably, the secondary seed storage box is fixedly connected to the frame. The secondary seed metering mechanism further includes a secondary motor, which is arranged in parallel behind the secondary seed storage box, and the output shaft of the secondary motor is arranged parallel to the secondary seed storage box. A driving sprocket is fixedly connected to the output shaft of the secondary motor, and a driven sprocket is additionally provided. The driving sprocket is connected to the driven sprocket through a chain. A third optical axis is inserted at one end of the driven sprocket. A crank is fixedly connected to one end of the third optical axis. A connecting rod is fixedly sleeved on the crank. A retaining edge bearing is arranged outside the connecting rod. A deep groove ball bearing is arranged at the contact position between the third optical axis and the secondary seed storage box. The crank is connected to a seed metering tooth seat through the connecting rod. The seed metering teeth are fixed on the seed metering tooth seat. Guide rails are provided on both sides of the secondary seed storage box. Sliders are slidably arranged in the guide rails. One side of the seed metering tooth seat is connected to the slider. The connecting rod is rotatably connected to the slider. A retaining tooth rotating shaft is rotatably inserted into the secondary seed storage box. A pair of retaining teeth and a secondary outlet spring mounting seat are fixedly sleeved on the retaining tooth rotating shaft. The retaining teeth and the secondary outlet spring mounting seat are both arranged at the outlet of the secondary seed storage box. The secondary outlet spring mounting seat is connected to the secondary seed storage box through a spring.

[0012] Preferably, the seed metering infrared detection switch is fixed in the middle of the secondary seed storage box for detecting the situation of sugarcane seeds at this place. When the seed metering infrared detection switch detects that there is a sugarcane seed blocking at this place, the secondary motor starts to move. On the contrary, the secondary motor stops moving. When the secondary infrared detection switch detects that there is a sugarcane seed blocking, and at the same time the seed metering infrared switch does not detect a sugarcane seed blocking, it indicates that there is a blockage of sugarcane seeds in the secondary seed box, and the electric sprocket roller rotates in the reverse direction to dredge the blocked sugarcane seeds.

[0013] Preferably, the seed guiding mechanism includes a seed guiding box, which is placed at the bottom of the secondary seed storage box and fixedly installed on the frame. An intermediate partition is fixed at the middle position of the seed guiding box. Inclined diversion plates are fixedly arranged on both sides of the intermediate partition. The outlet infrared detection switch is arranged on one side of the partition. The reseeding mechanism includes a reseeding box. A reseeding roller is arranged below the reseeding box. A reseeding motor is additionally provided. When the outlet infrared detection switch does not detect a sugarcane seed blocking for a period of time, it indicates that there is a seed leakage at the seed guiding port on this side, and the reseeding motor on this side starts to move for reseeding.

[0014] Compared with the prior art, the beneficial effects of the present invention are as follows: For an electric drive pre-cut sugarcane seed metering device of the present invention, only one artificial supplementary seed box and the sugarcane seeds of the supplementary reseeding mechanism are needed to fully automate the entire seed metering process, which has a high degree of automation and further improves the seed metering efficiency and accuracy;

[0015] Under the combined action of the primary infrared detection switch, secondary infrared detection switch, seeding infrared detection switch, and seeding infrared detection switch, the dropping of sugarcane seeds is controlled. The primary infrared detection switch determines whether there is sugarcane blocking at the detection point, thereby judging the remaining amount of sugarcane seeds in the primary seed box, and decides to stop the filling motor through a signal. When the primary infrared detection switch fails to detect sugarcane blocking, it means that the remaining amount of sugarcane in the primary seed box is not much, and the filling motor starts to move to replenish the sugarcane seeds in a timely manner; when the secondary infrared detection switch detects sugarcane blocking, it indicates that there are too many sugarcane seeds at this position, and the primary motor is controlled to stop operating through a signal to prevent the sugarcane seeds in the secondary seed box from jamming. Otherwise, the primary motor starts to operate; when the seeding infrared detection switch detects sugarcane blocking at this location, the secondary motor starts to move, otherwise the secondary motor stops moving. When the secondary infrared detection switch detects sugarcane blocking and the seeding infrared detection switch fails to detect sugarcane blocking at the same time, it means that there is a jamming situation of sugarcane seeds in the secondary seed box, and the electric sprocket roller rotates in the reverse direction to dredge the jammed sugarcane seeds.

[0016] The rollers are used to transport and adjust the sugarcane seeds, solving the problem of seed jamming caused by disordered sugarcane seeds, making the machine work more smoothly. The crank-slider mechanism drives the seeding teeth to achieve double-row seeding of sugarcane seeds on both sides, greatly improving the seeding efficiency.

[0017] An electric-driven sugarcane seeder provided by the present invention controls the working states of each motor through a sensing control system, improving the smoothness of the whole machine's operation. The structure of the present invention is compact and reasonable, flexible to use, convenient to disassemble and assemble, can be used in conjunction with a sugarcane planter, and can be adjusted according to the requirements of different planters to obtain different seeding speeds, which is convenient for sugarcane producers to use.

[0018] Existing pre-cut seed planters generally have problems such as seed jamming, uneven seeding, high bud injury rate, and currently cannot achieve high-speed and precise seeding. In response to these problems, chain plate lifting type is generally used for seeding at present. The present invention adopts a two-stage separation type for rough seeding and fine seeding, and realizes high-speed and precise seeding through the cooperation of sensors and motors, preventing seed jamming, and improving the seeding efficiency and uniformity. Description of the Drawings

[0019] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0020] Figure 2 It is a schematic diagram of the filling mechanism of the present invention;

[0021] Figure 3 It is a schematic diagram of the primary seeding mechanism of the present invention;

[0022] Figure 4 It is a schematic diagram of the secondary roller transmission mechanism of the present invention;

[0023] Figure 5 Schematic diagram of the secondary seed metering mechanism of the present invention;

[0024] Figure 6 Schematic diagram of the seed guiding mechanism of the present invention;

[0025] Figure 7 Schematic diagram of the supplementary seeding mechanism of the present invention;

[0026] Figure 8 Schematic diagram of the signal control system of the present invention.

[0027] Description of reference numerals: 1, frame; 2, sugarcane seed filling mechanism; 201, filling vertical bearing seat; 202, second optical axis; 203, second sprocket; 204, filling motor; 205, first sprocket; 206, spring switch; 207, seed box; 208, push plate; 209, filling chain; 210, first optical axis; 211, filling coupling; 3, primary seed metering mechanism; 301, primary seed box; 302, primary infrared detection switch; 303, tension spring mounting bracket; 304, primary tension spring; 305, primary motor; 306, primary coupling; 307, primary seed metering drum baffle; 308, primary vertical bearing seat; 309, baffle; 4, secondary roller transmission mechanism; 401, secondary seed box; 402, electric sprocket roller; 403, roller mounting plate; 404, roller drive chain; 405, driven sprocket roller; 406, seed storage tank, 407, electric roller at the seed storage inlet, 408, electric roller above the seed storage opening; 409, secondary infrared detection switch; 410, electric roller at the secondary inlet; 5, secondary seed metering mechanism; 501, secondary seed storage box; 502, retaining tooth rotating shaft; 503, retaining tooth; 504, tension spring; 505, seed metering infrared detection switch; 506, seed metering tooth; 507, secondary outlet tension spring mounting seat; 508, guide rail; 509, slider; 510, seed metering tooth seat; 511, connecting rod; 512, crank; 513, retaining edge bearing; 514, third optical axis; 515, driven sprocket; 516, secondary drive chain; 517, driving sprocket; 518, secondary motor; 519, deep groove ball bearing; 6, seed guiding mechanism; 61, seed guiding box; 62, intermediate partition; 63, diversion plate; 64, outlet infrared detection switch; 7, supplementary seeding mechanism; 71, supplementary seeding box; 72, supplementary seeding motor; 73, supplementary seeding roller. Detailed implementation manners

[0028] The following Figure 1-8 , in conjunction with the attached

[0029] AsFigure 1-8 As shown in the figure, it includes a frame 1. A cane seed filling mechanism 2, a primary seed discharging mechanism 3, a secondary roller transmission mechanism 4, a secondary seed discharging mechanism 5, a seed guiding mechanism 6, and a replanting mechanism 7 are successively arranged from top to bottom on the connected frame 1. The cane seed filling mechanism 2 supplements cane seeds into the primary seed discharging mechanism 3. The primary seed discharging mechanism 3 discharges the cane seeds into the secondary roller transmission mechanism 4. The secondary roller transmission mechanism 4 adjusts and sorts the cane seeds and transmits them to the secondary seed discharging mechanism 5. Finally, the secondary seed discharging mechanism 5 discharges the cane seeds to both sides and enters the seed guiding mechanism 6 to achieve double-row seed discharging. When seed leakage occurs, the replanting mechanism 7 replants. One side of the primary seed discharging mechanism 3 is provided with a primary infrared detection switch 302. The primary infrared detection switch 302 determines whether there is a sugarcane blockage at this place and decides the working state of the cane seed filling mechanism 2 through this signal. One side of the secondary roller transmission mechanism 4 is provided with a secondary infrared detection switch 409. The secondary infrared detection switch 409 determines whether there is a sugarcane blockage at this place and decides the working state of the primary seed discharging mechanism 3 through this signal. One side of the secondary seed discharging mechanism 5 is provided with a seed discharging infrared detection switch 505. The infrared detection switch determines whether there is a sugarcane blockage at this place and decides the working state of the secondary seed discharging mechanism 5 through this signal. The seed guiding mechanism 6 includes a seed guiding box 61. A middle partition 62 is fixed at the middle position of the seed guiding box 61. Inclined guiding plates 63 are fixedly arranged on both sides of the middle partition 62. One side of the middle partition 62 is provided with an outlet infrared detection switch 64. The outlet infrared detection switch 64 determines whether there is a sugarcane blockage at this place and decides the working state of the replanting mechanism 7 through this signal. The cane seed filling mechanism 2 includes a filling motor 204. The filling motor 204 is fixed on the frame 1, and the output shaft of the filling motor 204 is perpendicular to the frame 1. Four filling vertical bearing seats 201 and two spring switches 206 are fixedly arranged on the frame 1. The output shaft of the filling motor 204 is perpendicular to the frame 1. In addition, a pair of first sprockets 205 and a pair of second sprockets 203 are provided. The first sprockets 205 and the second sprockets 203 are connected by a chain. The output shaft of the filling motor 204 is connected with a first optical axis 210 through a coupling. The first optical axis 210 is inserted through a pair of first sprockets 205. The two second sprockets 203 are connected by a second optical axis 202. Four push plates 208 are evenly arranged on the two chains. A seed box 207 is placed on the frame 1. The bottom of the seed box 207 is slidably connected with a cover plate. Both sides of the cover plate are connected with a pair of the spring switches 206. When the push plate 208 moves, it pushes the cover plate to open the bottom of the seed box 207 so that the cane seeds in the seed box 207 fall.

[0030] In this application, the output shaft of the filling motor 204 is connected to the first optical axis 210 through a coupling, is rotationally fitted through a vertical bearing block, and is arranged perpendicular to the bracket. Two first sprockets 205 are fixed on the first optical axis 210, and two second sprockets 203 fixed on the second optical axis 202 are driven to rotate through two chains. Four push plates 208 are fixed on the chains to push the seed box 207 forward. Under the action of the spring switch 206, the sugarcane seeds in the seed box 207 fall into the primary seed metering mechanism 3. The sugarcane is supplemented to the primary seed metering mechanism 3 by the sugarcane filling mechanism 2. The primary seed metering mechanism 3 discharges the sugarcane seeds into the secondary roller transmission mechanism 4. The secondary roller transmission mechanism 4 adjusts and sorts the sugarcane seeds and transmits them to the secondary seed metering mechanism 5. Finally, the secondary seed metering mechanism 5 discharges the sugarcane seeds to the front and back sides into the seed guiding mechanism 6 to achieve double-row seed metering. This application only needs one person to supplement the sugarcane seeds in the seed box 207 and the supplementary reseeding mechanism 7 to fully automate the entire seed metering process, with a high degree of automation, further improving the seed metering efficiency and accuracy. The sugarcane seeds are transported and adjusted by rollers, solving the problem of seed jamming caused by disordered sugarcane seeds and making the machine work more smoothly. The seed metering teeth 506 are driven by a crank-slider mechanism to discharge the sugarcane seeds to both sides to achieve double-row seed metering, greatly improving the seed metering efficiency. The working states of each motor are controlled through a sensing control system to improve the smoothness of the whole machine. The structure of the present invention is compact and reasonable, flexible to use, convenient to disassemble and assemble, can be used in conjunction with a sugarcane planter, and can be adjusted according to the requirements of different planters to obtain different seed metering speeds, which is convenient for sugarcane producers to use;

[0031] Existing pre-cut seed planters generally have problems such as seed jamming, uneven seed metering, and a high rate of damaged buds. Currently, high-speed and precise seed metering cannot be achieved. In response to these problems, chain plate lifting type is generally used for seed metering. The present invention uses a two-stage separation type for rough and precise seed metering, and realizes high-speed and precise seed metering through the cooperation of sensors and motors, preventing seed jamming, and improving the seed metering efficiency and uniformity.

[0032] In the present invention, the primary infrared detection switch 302, the secondary infrared detection switch 409, the seed metering infrared detection switch 505, the outlet infrared detection switch 64, etc. are all connected to the PLC controller, and the PLC controller controls the filling motor 204, the primary motor 305, the electric sprocket roller 402, the secondary motor 518, and the reseeding motor 72.

[0033] Preferably, as Figure 1As shown in FIG. 3, the first - stage seed - metering mechanism 3 includes a first - stage motor 305. The first - stage motor is fixed on the frame 1, and there are also two vertical bearing seats. The output shaft of the first - stage motor 305 is perpendicular to the frame 1. The first - stage motor 305 is fixedly connected with a first - stage seed - metering drum dial 307 through a coupling. A first - stage seed box 301 is fixedly connected to the frame 1. A spring mounting bracket 303 is fixedly provided on one side of the first - stage seed box 301. The spring mounting bracket 303 is fixedly connected with a baffle 309 through a first - stage spring 304. A first - stage infrared detection switch 302 is fixed in the middle of the first - stage seed box 301 facing the inside. The first - stage infrared detection switch 302 judges the remaining situation of the sugarcane seeds in the first - stage seed box 301 by judging whether there is sugarcane blocking at this place, and determines the working state of the seed filling mechanism 2 through this signal. When the first - stage infrared detection switch 302 detects that there is no sugarcane blocking, the remaining amount of sugarcane in the first - stage seed box 301 is not much, and the filling motor 204 starts to move to replenish the sugarcane seeds into the first - stage seed box 301 in time. On the contrary, the filling motor 204 stops moving. The baffle 309 is hinged at the outlet position of the first - stage seed box 301 to control the dropping of the sugarcane seeds.

[0034] In this application, the output shaft of the first - stage motor 305 is connected to the first - stage seed - metering drum dial 307 through a coupling, rotates and cooperates through two vertical bearing seats, and is arranged perpendicular to the bracket. The first - stage motor 305 drives the first - stage seed - metering drum dial 307 to rotate clockwise through the coupling, and discharges the sugarcane seeds in the first - stage seed box 301 into the second - stage roller transmission mechanism 4. The baffle 309 is arranged at the outlet of the first - stage seed box 301 and can form an opening - closing structure by rotating at the outlet. The first - stage spring 304 connects the spring mounting bracket 303 and the baffle 309. When the first - stage seed - metering drum dial 307 discharges the sugarcane seeds, the baffle 309 controls the discharge amount of sugarcane seeds each time to be 3 - 4 pieces. The first - stage infrared detection switch 302 is fixed in the middle of the first - stage seed box 301 facing the inside. The first - stage infrared detection switch 302 judges the remaining situation of the sugarcane seeds in the first - stage seed box 301 by judging whether there is sugarcane blocking at this place, and determines the working state of the seed filling mechanism 2 through this signal. When the first - stage infrared detection switch 302 detects that there is no sugarcane blocking, the remaining amount of sugarcane in the first - stage seed box 301 is not much, and the filling motor 204 starts to move to replenish the sugarcane seeds into the first - stage seed box 301 in time. On the contrary, the filling motor 204 stops moving, realizing the continuous replenishment of sugarcane seeds into the first - stage seed box 301 and avoiding emptying and seed jamming in the first - stage seed - metering mechanism 3.

[0035] Preferably, as Figure 1-4As shown in the figure, the secondary roller transmission mechanism 4 includes a secondary seed box 401, which is fixedly connected to the frame 1. An electric sprocket roller 402 is arranged at the bottom of the secondary seed box 401. A roller drive chain 404 is sleeved on the electric sprocket roller 402. A number of driven sprocket rollers 405 horizontally placed with the electric sprocket roller 402 are arranged on the frame 1. The roller drive chain 404 is sleeved on a number of driven sprocket rollers 405. A secondary inlet electric roller 410 is arranged at the entrance of the secondary seed box 401. A seed storage tank 406 is arranged on the frame 1. A seed storage inlet electric roller 407 is arranged at the entrance of the seed storage tank 406. The secondary roller transmission mechanism 4 includes a secondary seed box 401, which is fixedly connected to the frame 1. An electric sprocket roller 402 is arranged at the bottom of the secondary seed box 401. A roller drive chain 404 is sleeved on the electric sprocket roller 402. A number of driven sprocket rollers 405 are arranged on the frame 1. The roller drive chain 404 is sleeved on a number of driven sprocket rollers 405. A secondary inlet electric roller 410 is arranged at the entrance of the secondary seed box 401. A seed storage tank 406 is arranged on the frame 1. A seed storage inlet electric roller 407 is arranged at the entrance of the seed storage tank 406.

[0036] In this application, the secondary inlet electric roller 410, the seed storage inlet electric roller 407, and the electric roller 408 above the seed storage opening arranged at different positions of the secondary seed box 401 adjust the posture of the sugarcane seeds discharged by the primary seed metering mechanism 3, and control the number of sugarcane seeds entering the secondary seed box 401 to prevent the occurrence of sugarcane seed blockage, accumulation, and disorder in the secondary roller transmission mechanism 4. The secondary infrared detection switch 409 is arranged vertically downward above the secondary seed box 401 to detect the situation of sugarcane seeds at the entrance of the seed storage tank 406, and determine the working state of the primary seed metering mechanism 3 through this signal. When the secondary infrared detection switch 409 detects that there is sugarcane seed occlusion at this position, it means that there are too many sugarcane seeds at this position and the primary seed metering mechanism 3 stops moving. Otherwise, the primary seed metering mechanism 3 starts to move. Control the sugarcane seeds in the secondary seed box 401 to a reasonable quantity, sort the sugarcane seeds, and prevent the phenomenon of sugarcane seed accumulation so that the sugarcane seeds can fall into the secondary seed metering mechanism 5 orderly through the seed storage tank 406.

[0037] Preferably, as Figure 1-5As shown in the figure, the secondary seed metering mechanism 5 includes a secondary seed storage box 501. The secondary seed storage box 501 is fixedly connected to the frame 1. The secondary motor 518 is arranged in parallel behind the secondary seed storage box 501, and the output shaft of the secondary motor 518 is arranged parallel to the secondary seed storage box 501. A driving sprocket 517 is fixedly connected to the output shaft of the secondary motor 518. There is also a driven sprocket 515. The driving sprocket 517 is connected to the driven sprocket 515 through a chain. One end of the driven sprocket 515 is inserted with a third optical shaft 514. One end of the third optical shaft 514 is fixedly connected with a crank 512. A connecting rod 511 is fixedly sleeved on the crank 512. A retaining edge bearing 513 is arranged outside the connecting rod 511. A deep groove ball bearing 519 is arranged at the contact position between the third optical shaft 514 and the secondary seed storage box 501. The crank 512 is connected with a seed metering tooth seat 510 through the connecting rod 511. The seed metering teeth 506 are fixed on the seed metering tooth seat 510. Guide rails 508 are opened on both sides of the secondary seed storage box 501. Sliders 509 are slidably arranged in the guide rails 508. One side of the seed metering tooth seat 510 is connected with the slider 509. The connecting rod 511 is rotatably connected with the slider 509. A retaining tooth rotating shaft 502 is rotatably inserted into the secondary seed storage box 501. A pair of retaining teeth 503 and a secondary outlet spring mounting seat 507 are fixedly sleeved on the retaining tooth rotating shaft 502. The retaining teeth 503 and the secondary outlet spring mounting seat 507 are both arranged at the outlet of the secondary seed storage box 501. The secondary outlet spring mounting seat 507 is connected with the secondary seed storage box 501 through a spring 504. The seed metering infrared detection switch 505 is fixed in the middle of the secondary seed storage box 501, used to detect the situation of the cane seeds at this place, and determine the working state of the secondary seed metering mechanism 5 through this signal. When the seed metering infrared detection switch 505 detects that there is a cane seed blocking at this place, the secondary seed metering mechanism 5 starts to move. On the contrary, the secondary seed metering mechanism 5 stops moving. When the secondary infrared detection switch 505 detects that there is a cane seed blocking, and at the same time the seed metering infrared switch does not detect the cane seed blocking, it means that there is a blockage of the cane seeds in the secondary seed box 401. The electric sprocket roller 402 rotates in the reverse direction to dredge the blocked cane seeds.

[0038] In this application, the output shaft of the secondary motor 518 is connected to the driving sprocket 517 and is connected to the driven sprocket 515 through a chain to drive the optical axis to rotate. The optical axis is arranged parallel to the rear of the secondary seed storage box 501, and a deep groove ball bearing 519 is arranged at the contact between the optical axis and the secondary seed storage box 501. The fixed crank 512 at both ends of the optical axis drives the slider 509 and the seed metering tooth seat 510 to move back and forth in parallel through the connecting rod 511, pushing up the seed metering teeth 506 fixed on the seed metering tooth seat 510. At this time, the sugarcane seeds in the secondary seed storage box 501 will be discharged to the front and back sides to the seed metering and guiding mechanism 6. Stop teeth 503 are arranged at both sides of the outlet of the secondary seed storage box 501. The stop teeth 503 are fixed on the stop tooth rotating shaft 502. The stop tooth rotating shaft 502 rotates at a certain angle of 90° at the outlet of the secondary seed storage box 501. The mounting seat of the secondary outlet tension spring 504 is fixed to the stop tooth rotating shaft 502 and is connected to the secondary seed storage box 501 through the tension spring 504, enabling the stop teeth 503 to rotate elastically, controlling the discharge of only one sugarcane seed each time to prevent seed jamming and achieve accurate seed metering. The seed metering infrared detection switch 505 is fixed in the middle of the secondary seed storage box 501 to detect the situation of sugarcane seeds at this position and determine the working state of the secondary seed metering mechanism 5 through this signal. When the seed metering infrared detection switch 505 detects that there is sugarcane seed occlusion at this position, the secondary seed metering mechanism 5 starts to move to prevent seed jamming and achieve continuous discharge of sugarcane seeds.

[0039] Preferably, as Figure 6-7 shown, the reseeding mechanism 7 includes a reseeding box 71. A reseeding roller 73 is provided below the reseeding box 71. Another reseeding motor 72 is provided. When the outlet infrared detection switch 64 does not detect sugarcane seed occlusion for a period of time, it indicates that there is a seed leakage at the seed guiding port on this side. Then the reseeding motor 72 on this side starts to move for reseeding.

[0040] The usage method of the electric-driven sugarcane seed metering device of the present invention is as follows:

[0041] During operation, the seed frame 207 filled with sugarcane seeds is manually placed into the sugarcane seed filling mechanism 2. Since there may be a small probability of seed leakage during the seed metering process, to ensure no seed leakage, 10 sugarcane seeds need to be manually added to each of the two reseeding mechanisms 7.

[0042] Turn on the power of the whole machine. The filling motor 204, the primary motor 305, the secondary inlet electric roller 410, the seed storage inlet electric roller 407, the electric roller 408 above the seed storage port, and the electric sprocket roller 402 are in working condition. The filling motor 204 starts to work, driving the push plate 208 on the chain to push the seed frame 207 above the primary seed box 301. At this time, the spring switch 206 squeezes the buckle on the bottom plate of the seed frame 207 to deform and open the bottom plate, and the sugarcane seeds in the seed frame 207 fall into the primary seed box 301. When the primary infrared detection switch 302 detects that there is a sugarcane seed blockage, the filling motor 204 stops working. At the same time, a new seed frame 207 is manually placed into the sugarcane seed filling mechanism 2 in time to ensure that the sugarcane seed filling mechanism 2 always has a basket of sugarcane seeds ready.

[0043] Under the action of the elastic baffle 309, the primary motor 305 works to drive the primary seed discharging roller dial 307 to rotate clockwise to discharge the sugarcane seeds in the primary seed box 301. The seed discharging efficiency is about 2.5 seeds / s. When the primary infrared detection switch 302 does not detect the sugarcane seed blockage, the filling motor 204 starts to work to continue supplementing the sugarcane seeds in the seed frame 207 into the primary seed box 301.

[0044] The sugarcane seeds discharged by the primary seed discharging roller dial 307 enter the secondary seed box 401. The secondary inlet electric roller 410 at the inlet of the secondary seed box 401 rotates clockwise to adjust some inclined and stacked sugarcanes. Then, the electric sprocket roller 402 and the sprocket roller at the bottom of the secondary seed box 401 rotate clockwise to transport and sort the sugarcane seeds, so that the sugarcane seeds continuously enter the secondary seed storage box 501 through the seed storage groove 406. At the same time, the other two electric rollers on the secondary seed box 401 further sort and adjust the sugarcane seeds to ensure that there is no accumulation and blockage of sugarcane seeds. When the secondary infrared detection switch 409 above the secondary seed box 401 detects the sugarcane seeds, it means that there are too many sugarcane seeds in the secondary seed box 401. At this time, the primary motor 305 stops working. When the secondary infrared detection switch 409 does not detect the sugarcane seed blockage, the primary motor 305 continues to work to ensure that the sugarcane seeds in the secondary seed box 401 are within a certain quantity range and can smoothly enter the secondary seed storage box 501.

[0045] When the seed metering infrared detection switch 505 detects the occlusion of the sugarcane seeds in the secondary seed storage box 501, the secondary motor 518 starts to work. Through the driving sprocket 517, chain, driven sprocket 515, optical axis, crank 512, connecting rod 511, slider 509, and seed metering tooth seat 510, it drives the front and rear sides of the seed metering teeth 506 to move, discharging the sugarcane seeds at a speed of 2.5 seeds per second. At the same time, under the action of the elastic retaining teeth 503, only one sugarcane seed is discharged each time and enters the seed guiding mechanism 6. After the outlet infrared detection switch 64 detects the seed metering situation, the sugarcane seeds enter the sugarcane furrow through the seed guiding mechanism 6, completing the entire seed metering process. When the outlet infrared detection switch 64 on one side of the seed guiding mechanism 6 fails to detect the occlusion of the sugarcane seeds for a period of time, it indicates that there is a seed leakage at the seed guiding port on that side. Then the reseeding motor 72 on that side starts to move for reseeding, further reducing the seed leakage rate.

[0046] An electric-driven sugarcane seed metering device provided by the present invention only requires one artificial supplementary seed box 207 and the sugarcane seeds of the supplementary reseeding mechanism 7 to fully automate the entire seed metering process. It has a high degree of automation, further improving the seed metering efficiency and accuracy. By using rollers to transport and adjust the sugarcane seeds, it solves the problem of seed jamming caused by disordered sugarcane seeds, making the machine work more smoothly. The seed metering teeth 506 are driven by a crank-slider mechanism to achieve double-row seed metering by discharging the sugarcane seeds to both sides, greatly improving the seed metering efficiency. An electric-driven sugarcane seed metering device provided by the present invention controls the working states of each motor through a sensing control system, enhancing the smoothness of the whole machine's operation. The structure of the present invention is compact and reasonable, flexible to use, convenient for disassembly and assembly, can be used in conjunction with a sugarcane planter, and can be adjusted according to the requirements of different planters to obtain different seed metering speeds, which is convenient for sugarcane producers to use.

[0047] Although the embodiments of the present invention have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An electric drive pre-cut sugarcane metering device, comprising a frame (1), characterized in that, the frame (1) is successively provided with a sugarcane seed filling mechanism (2), a primary metering mechanism (3), a secondary roller transmission mechanism (4), a secondary metering mechanism (5) and a seed guiding mechanism (6) from top to bottom. A supplementary seeding mechanism (7) is arranged on one side of the seed guiding mechanism (6). It further includes: a primary infrared detection switch (302), arranged in the primary metering mechanism (3). The primary metering mechanism (3) includes a primary seed box (301), and the remaining situation of the sugarcane seeds in the primary seed box (301) is detected by identifying whether there is sugarcane blocking at the position where the primary infrared detection switch (302) is located; a secondary infrared detection switch (409), arranged on the secondary roller transmission mechanism (4). The secondary roller transmission mechanism (4) includes a secondary seed box (401), and the remaining situation of the sugarcane seeds in the secondary seed box (401) is detected by identifying whether there is sugarcane blocking at the position where the secondary infrared detection switch (409) is located; a metering infrared detection switch (505), arranged on the secondary metering mechanism (5), and whether there is sugarcane blocking at the position where the metering infrared detection switch (505) is located is identified; an outlet infrared detection switch (64), arranged on the seed guiding mechanism (6). If the outlet infrared detection switch (64) does not detect sugarcane blocking, it indicates that there is a seed leakage phenomenon at this time, and then the supplementary seeding mechanism (7) performs supplementary seeding; The secondary seed metering mechanism (5) includes a secondary seed storage box (501), the secondary seed storage box (501) is fixedly connected to the frame (1), a seed storage groove (406) is provided at the bottom of the secondary seed box (401), the secondary seed storage box (501) is placed on the lower side of the seed storage groove (406), a secondary motor (518) is arranged in parallel behind the secondary seed storage box (501), and the output shaft of the secondary motor (518) is arranged in parallel with the secondary seed storage box (501). The output shaft of the secondary motor (518) is fixedly connected with a driving sprocket (517), and a driven sprocket (515) is further provided. The driving sprocket (517) is connected to the driven sprocket (515) through a secondary transmission chain (516). One end of the driven sprocket (515) is inserted with a third optical axis (514), one end of the third optical axis (514) is fixedly connected with a crank (512), a connecting rod (511) is fixedly sleeved on the crank (512), a retaining edge bearing (513) is arranged outside the connecting rod (511), a deep groove ball bearing (519) is arranged at the contact position between the third optical axis (514) and the secondary seed storage box (501). The crank (512) is connected with a seed metering tooth seat (510) through the connecting rod (511), and seed metering teeth (506) are fixed on the seed metering tooth seat (510). Guide rails (508) are provided on both sides of the secondary seed storage box (501), sliders (509) are slidably arranged in the guide rails (508), one side of the seed metering tooth seat (510) is connected with the slider (509), and the connecting rod (511) is rotatably connected with the slider (509). A retaining tooth rotating shaft (502) is rotatably inserted into the secondary seed storage box (501), a pair of retaining teeth (503) and a secondary outlet tension spring mounting seat (507) are fixedly sleeved on the retaining tooth rotating shaft (502), the retaining teeth (503) and the secondary outlet tension spring mounting seat (507) are both arranged at the outlet of the secondary seed storage box (501), and the secondary outlet tension spring mounting seat (507) is connected with the secondary seed storage box (501) through a tension spring (504).

2. The electric drive pre-cut sugarcane seed metering device according to claim 1, characterized in that, The cane seed filling mechanism (2) includes a filling motor (204) fixed to the frame (1). Four filling vertical bearing seats (201) and a pair of spring switches (206) are fixedly arranged on the frame (1). A seed box (207) is placed on the frame (1). The bottom of the seed box (207) is slidably connected with a cover plate. Both sides of the cover plate are connected to the pair of spring switches (206). Additionally, there is a pair of first sprockets (205) and a pair of second sprockets (203). The first sprockets (205) and the second sprockets (203) are connected by a filling chain (209). The output shaft of the filling motor (204) is connected with a first optical shaft (210) through a filling coupling (211). The first optical shaft (210) is inserted through the pair of first sprockets (205). The pair of second sprockets (203) are connected by a second optical shaft (202). Four push plates (208) are evenly arranged on the pair of filling chains (209). When the push plates (208) move, they push the cover plate to open the bottom of the seed box (207) so that the cane seeds in the seed box (207) fall off.

3. The electric-driven pre-cut cane seed metering device according to claim 2, characterized in that the primary metering mechanism (3) includes a primary motor (305) fixed to the frame (1). There are also two primary vertical bearing seats (308). The output shaft of the primary motor (305) is horizontally arranged. The primary motor (305) is fixedly connected with a primary metering drum paddle (307) through a primary coupling (306). The primary seed box (301) is placed below the seed box (207). A spring mounting bracket (303) is fixedly arranged on one side of the primary seed box (301). The spring mounting bracket (303) is fixedly connected with a baffle (309) through a primary spring (304). The baffle (309) is hinged at the outlet position of the primary seed box (301) to control the falling of the cane seeds.

4. The electric-driven pre-cut cane seed metering device according to claim 3, characterized in that the primary infrared detection switch (302) is fixed in the middle of the primary seed box (301) and its detection end is placed inside the primary seed box (301). The primary infrared detection switch (302) judges whether there is cane seed occlusion within a certain period of time at the detection position, so as to judge the remaining situation of the cane seeds in the primary seed box (301), and decides to stop the operation of the filling motor (204) through a signal. When the primary infrared detection switch (302) does not detect cane seed occlusion, at this time, the remaining amount of cane seeds in the primary seed box (301) is not much, and the filling motor (204) starts to move to replenish the cane seeds in time.

5. The electric-driven pre-cut cane seed metering device according to claim 4, characterized in that The secondary roller transmission mechanism (4) includes an electric sprocket roller (402), which is installed at the bottom of the secondary seed box (401). The secondary seed box (401) is arranged on one side of the primary seed metering drum deflector (307). A roller drive chain (404) is wound around the electric sprocket roller (402), and the roller drive chain (404) is sleeved on the electric sprocket roller (402). A number of driven sprocket rollers (405) horizontally placed with the electric sprocket roller (402) are provided on the frame (1), and the roller drive chain (404) is sleeved on a number of the driven sprocket rollers (405). The entrance of the secondary seed box (401) is placed below the exit of the primary seed box (301). A secondary entrance electric roller (410) is provided at the entrance of the secondary seed box (401). The frame (1) is provided with a secondary seed box (401). An electric roller above the seed storage opening (408) is provided above the entrance of the seed storage tank (406), and an electric roller at the seed storage entrance (407) is provided below the entrance of the seed storage tank (406).

6. An electric drive pre-cutting sugarcane seed metering device according to claim 5, characterized in that, the secondary infrared detection switch (409) is arranged vertically downward above the secondary seed box (401). When the secondary infrared detection switch (409) detects that the sugarcane seeds are blocked, it indicates that there are too many sugarcane seeds at this position. The primary motor (305) is controlled to stop operating through a signal to prevent the sugarcane seeds in the secondary seed box (401) from being blocked. On the contrary, the primary motor (305) starts to operate.

7. An electric drive pre-cutting sugarcane seed metering device according to claim 6, characterized in that, the seed metering infrared detection switch (505) is fixed in the middle of the secondary seed storage box (501) for detecting the situation of sugarcane seeds at this place. When the seed metering infrared detection switch (505) detects that there are sugarcane seeds blocked at this place, the secondary motor (518) starts to move. On the contrary, the secondary motor (518) stops moving. When the secondary infrared detection switch (409) detects that there are sugarcane seeds blocked and at the same time the seed metering infrared detection switch (505) does not detect that the sugarcane seeds are blocked, it indicates that there is a blockage situation of the sugarcane seeds in the secondary seed box (401), and the electric sprocket roller (402) rotates in the reverse direction to dredge the blocked sugarcane seeds.

8. An electric drive pre-cutting sugarcane seed metering device according to claim 7, characterized in that, The seed guiding mechanism (6) includes a seed guiding box (61). The seed guiding box (61) is placed at the bottom of the secondary seed storage box (501) and fixedly installed on the frame (1). An intermediate partition plate (62) is fixedly arranged at the middle position of the seed guiding box (61). Inclined diversion plates (63) are fixedly arranged on both sides of the intermediate partition plate (62). The outlet infrared detection switch (64) is arranged on one side of the partition plate (62). The reseeding mechanism (7) includes a reseeding box (71). A reseeding roller (73) is arranged below the reseeding box (71), and a reseeding motor (72) is additionally provided. When the outlet infrared detection switch (64) fails to detect the occlusion of sugarcane seeds for a period of time, it indicates that there is a seed leakage at the seed guiding port on this side, and then the reseeding motor (72) on this side starts to move for reseeding.

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