Air suction type wheat seed metering device capable of intelligently monitoring seed falling

Abstract

The invention relates to the technical field of agricultural seeding machinery, in particular to an air suction type wheat seed metering device capable of intelligently monitoring seed falling, which comprises a seed box, an air suction disc, an adsorption hole, a hollow rotating shaft, a rotating joint, an air suction pipe, a fixed rod, a chain wheel, a seed removing plate, a seed metering pipe and a foot margin shell, the outer side wall of the air suction cup is in contact with the inner side wall of the seed box, the air outlet end of the air suction cup is communicated with the air exhaust end of the hollow rotating shaft, a seed removing plate is installed at the bottom end of the interior of the seed box, the device further comprises an earthing burying assembly, a seed suction monitoring assembly, a seed falling monitoring assembly and an earthing burying monitoring assembly, and the seed suction monitoring assembly is installed on the seed box; a soil covering and burying assembly is mounted on the seed metering pipe, a soil covering and burying monitoring assembly is mounted on the soil covering and burying assembly, and a seed falling monitoring assembly is mounted on the seed metering pipe; the seed suction and falling states, the seed spacing uniformity and the earthing burying effect are monitored in real time, and precise seeding and quality feedback are achieved.

Description

Technical Field

[0001] The present invention relates to the technical field of agricultural seeding machinery, and in particular to a pneumatic wheat metering and seeding device for intelligently monitoring seed dropping. Background Art

[0002] Traditional pneumatic metering and seeding devices adsorb seeds through negative pressure and complete seeding by the rotation of the metering disc, but there are the following problems: 1. Poor reliability of seed suction: Due to air pressure fluctuations or differences in seed shapes, it is easy to have the phenomena of missed suction or multiple suction; 2. Lack of monitoring of seed dropping: It is impossible to detect in real time whether the seeds have successfully separated from the metering disc and accurately fallen into the seed furrow; 3. Lag in evaluation of seeding quality: The uniformity of seed spacing and the covering thickness need to be manually spot-checked, with low efficiency and difficult to cover comprehensively.

[0003] In the prior art, the patent document with the publication number CN206314191U discloses an automatic pressure relief and seed cleaning double-suction disc wheat precision metering and seeding device, which includes a housing and two parallel suction discs with air suction holes located inside the housing. The two suction discs are fixed on a rotating shaft passing through the housing at both ends. A seed scraping plate is arranged between the two suction discs. A pressure relief and seed cleaning pipe fixed on the housing is arranged outside the suction disc corresponding to the position where the seed scraping plate scrapes seeds. One end of the pressure relief and seed cleaning pipe is in contact with the suction disc, and the other end is communicated with the atmosphere. A seed dropping cavity is arranged below the seed scraping plate, and a seeding pipe communicating with the outside is fixed at the bottom of the seed dropping cavity. By arranging the pressure relief and seed cleaning pipe, the present invention makes it easy for the seed scraping plate to scrape off the seeds adsorbed in the air suction holes, and prolongs the service life of the metering and seeding device.

[0004] During the use process, it is found that the above device has the following problems: 1. Lack of monitoring of seed dropping: It is impossible to detect in real time whether the seeds have successfully separated from the metering disc and accurately fallen into the seed furrow; 2. Lag in evaluation of seeding quality: The uniformity of seed spacing and the covering thickness need to be manually spot-checked, with low efficiency and difficult to cover comprehensively. Summary of the Invention

[0005] To solve the above technical problems, the present invention provides a pneumatic wheat metering and seeding device for intelligently monitoring seed dropping.

[0006] An air-suction type wheat seed metering device for intelligently monitoring seed dropping of the present invention includes a seed box, an air suction disc, adsorption holes, a hollow rotating shaft, a rotary joint, an air extraction pipe, a fixed rod, a sprocket, a seed removal plate, a seed metering pipe and a floor shell. An air suction disc is arranged inside the seed box, the outer side wall of the air suction disc contacts with the inner side wall of the seed box, the air outlet end of the air suction disc is communicated with the air extraction end of the hollow rotating shaft, the hollow rotating shaft is rotatably connected with the seed box, one end of the air suction disc far away from the hollow rotating shaft is respectively provided with multiple groups of adsorption holes in a circumferential array, the air outlet end of the hollow rotating shaft is rotatably communicated with one end of the air extraction pipe through a rotary joint, a fixed rod is fixedly arranged between the air extraction pipe and the seed box, a sprocket is arranged on the hollow rotating shaft, a seed removal plate is installed at the bottom end inside the seed box, a seed metering pipe is arranged at the bottom end of the seed box, and a floor shell is installed at the bottom end of the seed metering pipe. The device further includes a soil covering and burying assembly, a seed suction monitoring assembly, a seed dropping monitoring assembly and a soil covering and burying monitoring assembly. The seed suction monitoring assembly is installed on the seed box, the soil covering and burying assembly is installed on the seed metering pipe, the soil covering and burying monitoring assembly is installed on the soil covering and burying assembly, and the seed dropping monitoring assembly is installed on the seed metering pipe. When in use, the seed box is installed on a support frame, the tractor drives the hollow rotating shaft to drive the air suction disc to rotate inside the seed box through the cooperation of a chain and the sprocket, an air extraction assembly is communicated with the output end of the air extraction pipe, so that the adsorption holes on the air suction disc adsorb the wheat seeds inside the seed box, then the adsorption holes drive the wheat seeds to be threshed through the seed removal plate, and then the wheat seeds fall into the trench through the seed metering pipe and the floor shell under the action of their own gravity. The seed suction monitoring assembly detects the seed suction condition of the adsorption holes in real time, the seed dropping monitoring assembly monitors the seed dropping condition in the seed metering pipe in real time, the soil covering and burying assembly performs soil covering operation on the landed wheat seeds, the soil covering and burying monitoring assembly monitors the exposure condition of the wheat seeds after soil covering, and the seed suction monitoring assembly, the seed dropping monitoring assembly and the soil covering and burying monitoring assembly transmit the monitoring information to the central control unit in real time, so as to monitor the seed suction, seed dropping states, the uniformity of seed spacing and the soil covering and burying effect in real time, and realize precise sowing and quality feedback.

[0007] Preferably, the soil covering and burying assembly includes a first support frame, a square frame, a lifting arm, a rotating shaft, a soil covering disc, a second support frame and a flattening roller. The first support frame is installed on the seed metering pipe, one end of the first support frame far away from the seed metering pipe is provided with a square frame, a lifting arm is slidably arranged inside the square frame, a wing bolt is screwed on the square frame, two groups of rotating shafts are symmetrically arranged on the lifting arm, and a group of soil covering discs are respectively rotatably installed on each rotating shaft. A second support frame is arranged on the lifting arm, and a flattening roller is installed on the second support frame. When in use, the staff adjusts the height of the lifting arm according to the use requirement. After the adjustment is completed, the wing bolt is rotated to tighten the lifting arm, and the two soil covering discs rotate adaptively. The two soil covering discs cooperate with each other to perform soil covering operation on the soil trench, and then the flattening roller rotates adaptively to flatten the wheat seeds after soil covering, so as to improve the soil covering efficiency.

[0008] Preferably, the seed suction monitoring component includes a sealing plate, a mounting seat, a positioning rod, a positioning hole, a first bolt, and a high-frame-rate industrial camera. An installation opening is provided on the seed box, a positioning rod is provided on the seed box, a positioning hole is provided on the sealing plate, the sealing plate seals the installation opening, a mounting seat is installed on the sealing plate, a high-frame-rate industrial camera is installed on the mounting seat, and the sealing plate is installed on the seed box through the first bolt. During use, the positioning rod is passed through the positioning hole to complete the preliminary positioning of the sealing plate, and then the sealing plate is fixedly installed on the seed box through multiple groups of first bolts. The high-frame-rate industrial camera is fixed inside the seed box under the support of the mounting seat. When the air suction cup adsorbs wheat seeds through multiple adsorption holes, the high-frame-rate industrial camera monitors the wheat seeds on the adsorption holes to achieve real-time monitoring of wheat seed suction.

[0009] Preferably, the seed dropping monitoring component includes a first opening, a second opening, a support, an inclined guide plate, a light curtain sensing transmitter, a light curtain sensing receiver, and a second bolt. A group of first openings and a group of second openings are respectively provided at both side ends of the seed discharging pipe. A group of inclined guide plates are respectively provided on two groups of supports. A light curtain sensing transmitter is installed on one group of supports, and a light curtain sensing receiver is installed on the other group of supports. The two groups of supports are installed on the seed discharging pipe through the second bolt. During use, the two groups of inclined guide plates respectively enter the inside of the seed discharging pipe through a group of first openings, the light curtain sensing transmitter and the light curtain sensing receiver respectively enter the inside of the seed discharging pipe through a group of second openings, and then the two groups of supports are fixedly connected to the seed discharging pipe through the second bolt. The light curtain sensing transmitter emits a light curtain signal, and the light curtain sensing receiver receives the light curtain signal. The two groups of inclined guide plates are in an inverted V shape. Wheat seeds fall between the light curtain sensing transmitter and the light curtain sensing receiver under the cooperation of the two groups of inclined guide plates, and the light curtain senses and detects the falling wheat seeds to achieve seed dropping detection.

[0010] Preferably, the soil covering and burying monitoring component includes a third support frame, a near-infrared camera, a support seat, and a third bolt. The support seat is fixedly installed on the second support frame through the third bolt. The third support frame is installed on the support seat, and a near-infrared camera is installed at the bottom end of the third support frame. After the flattening roller flattens the soil, the near-infrared camera collects images of the soil surface to monitor the exposure of wheat seeds and improve the monitoring efficiency.

[0011] Preferably, the adsorption holes are designed with a tapered taper.

[0012] Preferably, it further includes a chamfered portion, and the positioning rod is provided with a chamfered portion; the positioning rod is quickly inserted into the positioning hole under the cooperation of the chamfered portion to improve the installation efficiency.

[0013] Preferably, the near-infrared camera is inclined at an angle of 30 degrees with respect to the sowing direction.

[0014] Preferably, it further includes a limiting plate, and the limiting plate is installed on the seed removing plate; the seed removing plate and the limiting plate cooperate with each other to make the wheat seeds separated from the adsorption holes fall vertically into the seed discharging pipe, improving the sowing efficiency.

[0015] Preferably, a hydrophobic coating is plated on the inner side wall of the adsorption hole.

[0016] Compared with the prior art, the beneficial effects of the present invention are as follows: When in use, the seed box is installed on the support frame, and the tractor drives the air suction disc to rotate inside the seed box through the cooperation of the chain and the sprocket, and the air extraction component is communicated with the output end of the air extraction pipe, so that the adsorption holes on the air suction disc adsorb the wheat seeds inside the seed box. Then, the adsorption holes drive the wheat seeds to be threshed through the seed removing plate. After that, the wheat seeds fall into the trench through the seed discharging pipe and the floor housing under the action of their own gravity. The seed suction monitoring component detects the seed suction situation of the adsorption holes in real time, the seed dropping monitoring component monitors the seed dropping situation in the seed discharging pipe in real time, the soil covering and burying component performs the soil covering operation on the landed wheat seeds, and the soil covering and burying monitoring component monitors the exposure situation of the wheat seeds after soil covering. The seed suction monitoring component, the seed dropping monitoring component and the soil covering and burying monitoring component transmit the monitoring information to the central control unit in real time, and monitor the seed suction, seed dropping states, seed spacing uniformity and soil covering and burying effects in real time, realizing precise sowing and quality feedback. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 is the first axonometric structure schematic diagram of the present invention;

[0018] Figure 2 is Figure 1 the partial enlarged structure schematic diagram of part A in

[0019] Figure 3 is the second axonometric structure schematic diagram of the present invention;

[0020] Figure 4 is the exploded structure schematic diagram of the present invention;

[0021] Figure 5 is the enlarged structure schematic diagram of structures such as the sealing plate and the high-frame rate industrial camera;

[0022] Figure 6 is the enlarged structure schematic diagram of structures such as the air suction disc and the floor housing;

[0023] Figure 7 is the exploded structure schematic diagram of structures such as the lifting arm and the seed discharging pipe;

[0024] Figure 8 is the enlarged structure schematic diagram of structures such as the first support frame and the floor housing;

[0025] Figure 9 is Figure 8 the partial enlarged structure schematic diagram of part B in

[0026] Figure 10 It is an enlarged structural schematic diagram of structures such as a soil covering plate and a near-infrared camera.

[0027] Reference numerals in the drawings: 101, seed box; 102, air suction cup; 103, suction hole; 104, hollow rotating shaft; 105, rotary joint; 106, air extraction pipe; 107, fixed rod; 108, sprocket; 109, seed removal plate; 110, seed metering tube; 111, floor shell; 112, limit plate; 201, first support frame; 202, square box; 203, lifting arm; 204, rotating shaft; 205, soil covering plate; 206, second support frame; 207, flattening roller; 301, sealing plate; 302, mounting seat; 303, positioning rod; 304, positioning hole; 305, first bolt; 306, high-frame-rate industrial camera; 307, chamfered part; 401, first opening; 402, second opening; 403, support; 404, inclined guide plate; 405, light curtain sensing transmitter; 406, light curtain sensing receiver; 407, second bolt; 501, third support frame; 502, near-infrared camera; 503, support seat; 504, third bolt. Detailed implementation manners

[0028] For the convenience of understanding the present invention, the present invention will be described more comprehensively below with reference to the relevant drawings. The present invention can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, these embodiments are provided to make the disclosure of the present invention more thorough and comprehensive.

[0029] Embodiment 1

[0030] As Figures 1 to 10As shown in the figure, an air-suction type wheat seed metering device for intelligently monitoring seed dropping of the present invention includes a seed box 101, an air suction disc 102, adsorption holes 103, a hollow rotating shaft 104, a rotary joint 105, an air extraction pipe 106, a fixed rod 107, a sprocket 108, a seed removal plate 109, a seed metering pipe 110 and a floor housing 111. An air suction disc 102 is arranged inside the seed box 101. The outer side wall of the air suction disc 102 is in contact with the inner side wall of the seed box 101. The air outlet end of the air suction disc 102 is communicated with the air extraction end of the hollow rotating shaft 104. The hollow rotating shaft 104 is rotatably connected to the seed box 101. One end of the air suction disc 102 away from the hollow rotating shaft 104 is circumferentially arranged with multiple groups of adsorption holes 103. The air outlet end of the hollow rotating shaft 104 is rotationally communicated with one end of the air extraction pipe 106 through a rotary joint 105. A fixed rod 107 is fixedly arranged between the air extraction pipe 106 and the seed box 101. A sprocket 108 is arranged on the hollow rotating shaft 104. A seed removal plate 109 is installed at the bottom end inside the seed box 101. A seed metering pipe 110 is arranged at the bottom end of the seed box 101. A floor housing 111 is installed at the bottom end of the seed metering pipe 110. It further includes a soil covering and burying component, a seed suction monitoring component, a seed dropping monitoring component and a soil covering and burying monitoring component. A seed suction monitoring component is installed on the seed box 101. A soil covering component is installed on the seed metering pipe 110. A soil covering and burying monitoring component is installed on the soil covering component. A seed dropping monitoring component is installed on the seed metering pipe 110;

[0031] The soil covering and burying component includes a first support frame 201, a square frame 202, a lifting arm 203, a rotating shaft 204, a soil covering disc 205, a second support frame 206 and a flattening roller 207. A first support frame 201 is installed on the seed metering pipe 110. One end of the first support frame 201 away from the seed metering pipe 110 is provided with a square frame 202. A lifting arm 203 is slidably arranged inside the square frame 202. A wing nut is screwed on the square frame 202. Two groups of rotating shafts 204 are symmetrically arranged on the lifting arm 203. A group of soil covering discs 205 are respectively rotatably installed on each rotating shaft 204. A second support frame 206 is arranged on the lifting arm 203. A flattening roller 207 is installed on the second support frame 206;

[0032] The seed suction monitoring component includes a sealing plate 301, a mounting seat 302, a positioning rod 303, a positioning hole 304, a first bolt 305 and a high-frame rate industrial camera 306. An installation opening is arranged on the seed box 101. A positioning rod 303 is arranged on the seed box 101. A positioning hole 304 is arranged on the sealing plate 301. The sealing plate 301 seals the installation opening. A mounting seat 302 is installed on the sealing plate 301. A high-frame rate industrial camera 306 is installed on the mounting seat 302. The sealing plate 301 is installed on the seed box 101 through a first bolt 305;

[0033] The seed dropping monitoring component includes a first opening 401, a second opening 402, a support 403, an inclined guide plate 404, a light curtain sensing transmitter 405, a light curtain sensing receiver 406, and a second bolt 407. On both sides of the seed metering tube 110, a set of first openings 401 and a set of second openings 402 are respectively arranged. On two sets of supports 403, a set of inclined guide plates 404 are respectively arranged. A light curtain sensing transmitter 405 is installed on one set of supports 403, and a light curtain sensing receiver 406 is installed on the other set of supports 403. The two sets of supports 403 are installed on the seed metering tube 110 through the second bolt 407.

[0034] In this embodiment, during use, the seed box 101 is installed on the support frame. The tractor drives the hollow rotating shaft 104 through the cooperation of the chain and the sprocket 108 to drive the air suction cup 102 to rotate inside the seed box 101. The air extraction component is communicated with the output end of the air extraction pipe 106, so that the adsorption holes 103 on the air suction cup 102 adsorb the wheat seeds inside the seed box 101. Then, the adsorption holes 103 drive the wheat seeds to thresh through the seed removal plate 109. Then, the wheat seeds fall into the trench through the seed metering tube 110 and the floor housing 111 under the action of their own gravity. Adjust the height of the lifting arm 203. After the adjustment is completed, rotate the wing bolt to tighten the lifting arm 203. The two sets of soil covering discs 205 rotate adaptively. The two sets of soil covering discs 205 cooperate with each other to cover the soil in the soil trench. Then, the flattening roller 207 rotates adaptively to flatten the covered wheat seeds. When the air suction cup 102 adsorbs the wheat seeds through multiple adsorption holes 103, the high-frame rate industrial camera 306 monitors the wheat seeds on the adsorption holes 103 to realize real-time monitoring of wheat seed suction. The light curtain sensing transmitter 405 emits a light curtain signal, and the light curtain sensing receiver 406 receives the light curtain signal. The two sets of inclined guide plates 404 are in an inverted V shape. The wheat seeds fall between the light curtain sensing transmitter 405 and the light curtain sensing receiver 406 under the cooperation of the two sets of inclined guide plates 404. The light curtain senses and detects the dropped wheat seeds to realize seed dropping detection.

[0035] Embodiment 2

[0036] As Figures 1 to 10As shown in the figure, an air-suction type wheat seed metering device for intelligently monitoring seed dropping of the present invention includes a seed box 101, an air suction disc 102, adsorption holes 103, a hollow rotating shaft 104, a rotary joint 105, an air extraction pipe 106, a fixing rod 107, a sprocket 108, a seed removal plate 109, a seed metering pipe 110 and a floor shell 111. An air suction disc 102 is arranged inside the seed box 101. The outer side wall of the air suction disc 102 is in contact with the inner side wall of the seed box 101. The air outlet end of the air suction disc 102 is communicated with the air extraction end of the hollow rotating shaft 104. The hollow rotating shaft 104 is rotationally connected with the seed box 101. One end of the air suction disc 102 far from the hollow rotating shaft 104 is respectively provided with multiple groups of adsorption holes 103 in a circumferential array. The air outlet end of the hollow rotating shaft 104 is rotationally communicated with one end of the air extraction pipe 106 through a rotary joint 105. A fixing rod 107 is fixedly arranged between the air extraction pipe 106 and the seed box 101. A sprocket 108 is arranged on the hollow rotating shaft 104. A seed removal plate 109 is installed at the bottom end inside the seed box 101. A seed metering pipe 110 is arranged at the bottom end of the seed box 101. A floor shell 111 is installed at the bottom end of the seed metering pipe 110. It further includes a soil covering and burying component, a seed suction monitoring component, a seed dropping monitoring component and a soil covering and burying monitoring component. A seed suction monitoring component is installed on the seed box 101. A soil covering component is installed on the seed metering pipe 110. A soil covering and burying monitoring component is installed on the soil covering component. A seed dropping monitoring component is installed on the seed metering pipe 110;

[0037] The soil covering and burying component includes a first support frame 201, a square frame 202, a lifting arm 203, a rotating shaft 204, a soil covering disc 205, a second support frame 206 and a flattening roller 207. A first support frame 201 is installed on the seed metering pipe 110. One end of the first support frame 201 far from the seed metering pipe 110 is provided with a square frame 202. A lifting arm 203 is slidably arranged inside the square frame 202. A butterfly bolt is screwed on the square frame 202. Two groups of rotating shafts 204 are symmetrically arranged on the lifting arm 203. A group of soil covering discs 205 are respectively rotatably installed on each group of rotating shafts 204. A second support frame 206 is arranged on the lifting arm 203. A flattening roller 207 is installed on the second support frame 206;

[0038] The seed suction monitoring component includes a sealing plate 301, a mounting seat 302, a positioning rod 303, a positioning hole 304, a first bolt 305 and a high-frame rate industrial camera 306. An installation opening is arranged on the seed box 101. A positioning rod 303 is arranged on the seed box 101. A positioning hole 304 is arranged on the sealing plate 301. The sealing plate 301 seals the installation opening. A mounting seat 302 is installed on the sealing plate 301. A high-frame rate industrial camera 306 is installed on the mounting seat 302. The sealing plate 301 is installed on the seed box 101 through a first bolt 305;

[0039] The seed dropping monitoring component includes a first opening 401, a second opening 402, a support 403, an inclined guide plate 404, a light curtain sensor transmitter 405, a light curtain sensor receiver 406, and a second bolt 407. A set of first openings 401 and a set of second openings 402 are respectively arranged at both side ends of the seed discharging pipe 110. A set of inclined guide plates 404 are respectively arranged on two sets of supports 403. A light curtain sensor transmitter 405 is installed on one set of supports 403, and a light curtain sensor receiver 406 is installed on the other set of supports 403. The two sets of supports 403 are installed on the seed discharging pipe 110 through the second bolt 407;

[0040] The soil covering and burying monitoring component includes a third support frame 501, a near-infrared camera 502, a support base 503, and a third bolt 504. The support base 503 is fixedly installed on the second support frame 206 through the third bolt 504. The third support frame 501 is installed on the support base 503. The near-infrared camera 502 is installed at the bottom end of the third support frame 501;

[0041] It also includes a chamfered portion 307 and a limiting plate 112. The chamfered portion 307 is arranged on the positioning rod 303. The limiting plate 112 is installed on the seed discharging plate 109. The adsorption holes 103 adopt a tapered design. The near-infrared camera 502 forms an angle of thirty degrees with the sowing direction.

[0042] In this embodiment, during use, the seed box 101 is installed on the support frame. The tractor drives the air suction cup 102 to rotate inside the seed box 101 through the cooperation of the chain and the sprocket 108, so that the hollow rotating shaft 104 drives the air suction cup 102. The air extraction component is communicated with the output end of the air extraction pipe 106, so that the adsorption holes 103 on the air suction cup 102 adsorb the wheat seeds inside the seed box 101. Then, the adsorption holes 103 drive the wheat seeds to thresh through the seed discharging plate 109. Then, the wheat seeds fall into the trench through the seed discharging pipe 110 and the floor housing 111 under the action of their own gravity. Adjust the height of the lifting arm 203. After adjustment, rotate the wing bolt to tighten the lifting arm 203. The two sets of soil covering discs 205 rotate adaptively. The two sets of soil covering discs 205 cooperate with each other to cover the soil trench. Then, the flattening roller 207 rotates adaptively to flatten the covered wheat seeds. When the air suction cup 102 adsorbs the wheat seeds through multiple adsorption holes 103, the high-frame-rate industrial camera 306 monitors the wheat seeds on the adsorption holes 103 to realize real-time monitoring of wheat seed suction. The light curtain sensor transmitter 405 emits a light curtain signal, and the light curtain sensor receiver 406 receives the light curtain signal. The two sets of inclined guide plates 404 are in an inverted V shape. The wheat seeds fall between the light curtain sensor transmitter 405 and the light curtain sensor receiver 406 under the cooperation of the two sets of inclined guide plates 404. The light curtain senses and detects the dropped wheat seeds to realize seed dropping detection. After the flattening roller 207 flattens the soil, the near-infrared camera 502 collects images of the soil surface to monitor the exposure of wheat seeds.

[0043] The main functions achieved by the present invention are as follows:

[0044] 1. Multi-sensor collaboration realizes real-time quality monitoring of the entire seeding process from seed suction to seed dropping to soil covering;

[0045] 2. Support remote fault diagnosis and parameter optimization.

[0046] An air-suction type wheat seed metering device for intelligently monitoring seed dropping according to the present invention, its installation method, connection method or setting method are all common mechanical methods, and any method that can achieve its beneficial effects can be implemented; a feed pipe is provided at the top of the seed box 101; the air suction cup 102, high-frame rate industrial camera 306, light curtain sensing transmitter 405, light curtain sensing receiver 406 and near-infrared camera 502 of the air-suction type wheat seed metering device for intelligently monitoring seed dropping according to the present invention are purchased on the market. Those skilled in the art only need to install and operate according to the attached user manual, without the need for creative labor from those skilled in the art.

[0047] The above are only the preferred embodiments of the present invention. It should be noted that for those of ordinary skill in the art in this technical field, without departing from the technical principle of the present invention, several improvements and modifications can be made, and these improvements and modifications should also be regarded as the protection scope of the present invention.

Claims

1. An air-suction type wheat seed metering device for intelligent monitoring of seed dropping, comprising a seed box (101), an air suction disc (102), adsorption holes (103), a hollow rotating shaft (104), a rotary joint (105), an air extraction pipe (106), a fixed rod (107), a sprocket (108), a seed removal plate (109), a seed metering pipe (110) and a floor shell (111). An air suction disc (102) is arranged inside the seed box (101), the outer side wall of the air suction disc (102) is in contact with the inner side wall of the seed box (101), the air outlet end of the air suction disc (102) is communicated with the air extraction end of the hollow rotating shaft (104), the hollow rotating shaft (104) is rotationally connected with the seed box (101), one end of the air suction disc (102) far from the hollow rotating shaft (104) is respectively provided with multiple groups of adsorption holes (103) in a circumferential array, the air outlet end of the hollow rotating shaft (104) is rotationally communicated with one end of the air extraction pipe (106) through a rotary joint (105), a fixed rod (107) is fixedly arranged between the air extraction pipe (106) and the seed box (101), a sprocket (108) is arranged on the hollow rotating shaft (104), a seed removal plate (109) is installed at the bottom end inside the seed box (101), a seed metering pipe (110) is arranged at the bottom end of the seed box (101), and a floor shell (111) is installed at the bottom end of the seed metering pipe (110). It is characterized in that, It also includes a soil covering and burying component, a seed suction monitoring component, a seed dropping monitoring component, and a soil covering and burying monitoring component. The seed suction monitoring component is installed on the seed box (101), the soil covering and burying component is installed on the seed discharging pipe (110), the soil covering and burying monitoring component is installed on the soil covering and burying component, and the seed dropping monitoring component is installed on the seed discharging pipe (110).

2. The air-suction type wheat seed metering device for intelligent monitoring of seed dropping according to claim 1, wherein, The soil covering and burying component includes a first support frame (201), a square frame (202), a lifting arm (203), a rotating shaft (204), a soil covering disc (205), a second support frame (206), and a flattening roller (207). The first support frame (201) is installed on the seed discharging pipe (110). One end of the first support frame (201) away from the seed discharging pipe (110) is provided with a square frame (202). A lifting arm (203) is slidably arranged inside the square frame (202). A wing bolt is screwed on the square frame (202). Two groups of rotating shafts (204) are symmetrically arranged on the lifting arm (203). A group of soil covering discs (205) are respectively rotatably installed on each group of rotating shafts (204). A second support frame (206) is arranged on the lifting arm (203), and a flattening roller (207) is installed on the second support frame (206).

3. The air-suction type wheat seed metering device for intelligent monitoring of seed dropping according to claim 1, wherein The seed suction monitoring component includes a sealing plate (301), a mounting seat (302), a positioning rod (303), a positioning hole (304), a first bolt (305), and a high-frame-rate industrial camera (306). An installation opening is provided on the seed box (101), a positioning rod (303) is provided on the seed box (101), a positioning hole (304) is provided on the sealing plate (301). The sealing plate (301) seals the installation opening. A mounting seat (302) is installed on the sealing plate (301), a high-frame-rate industrial camera (306) is installed on the mounting seat (302), and the sealing plate (301) is installed on the seed box (101) through the first bolt (305).

4. The air-suction type wheat seed metering device for intelligent monitoring of seed dropping according to claim 1, characterized in that, The seed dropping monitoring component includes a first opening (401), a second opening (402), a support (403), an inclined guide plate (404), a light curtain sensor transmitter (405), a light curtain sensor receiver (406), and a second bolt (407). A group of first openings (401) and a group of second openings (402) are respectively arranged at both side ends of the seed discharging pipe (110). A group of inclined guide plates (404) are respectively arranged on two groups of supports (403). A light curtain sensor transmitter (405) is installed on one group of supports (403), a light curtain sensor receiver (406) is installed on the other group of supports (403), and the two groups of supports (403) are installed on the seed discharging pipe (110) through the second bolt (407).

5. The air-suction type wheat metering device for intelligent monitoring of seed dropping according to claim 2, characterized in that, The soil covering and burying monitoring component includes a third support frame (501), a near-infrared camera (502), a support base (503), and a third bolt (504). The support base (503) is fixedly installed on the second support frame (206) through the third bolt (504). The third support frame (501) is installed on the support base (503), and a near-infrared camera (502) is installed at the bottom end of the third support frame (501).

6. The air-suction type wheat seed metering device for intelligently monitoring seed dropping according to claim 1, wherein, The adsorption holes (103) adopt a tapered design.

7. The air-suction type wheat seed metering device for intelligent monitoring of seed dropping according to claim 3, characterized in that, It further includes a chamfered portion (307), and the positioning rod (303) is provided with a chamfered portion (307).

8. The air-suction type wheat seed metering device for intelligently monitoring seed dropping according to claim 7, wherein, The near-infrared camera (502) has an inclination angle of thirty degrees with the sowing direction.

9. The air-suction type wheat seed metering device for intelligent monitoring of seed dropping according to claim 1, wherein It further includes a limiting plate (112), and the seed removal plate (109) is installed with a limiting plate (112).

10. The air-suction type wheat seed metering device for intelligent monitoring of seed dropping as claimed in claim 1, wherein The inner side wall of the adsorption holes (103) is plated with a hydrophobic coating.

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