Rice seedling raising nutrient soil taking and screening integrated machine

Abstract

This invention discloses an integrated rice seedling nutrient soil collection and sieving machine, comprising a main component including a tractor, a tractor frame fixed on the tractor frame, and a soil collection frame movably connected to the tractor frame; a soil collection component including a rotary tiller shaft rotatably connected to the front end of the soil collection frame, with several rotary tiller blades arranged on the rotary tiller shaft, a soil transmission chamber on the soil collection frame behind the rotary tiller shaft, a soil transmission shaft rotatably connected to the soil collection frame, a soil throwing port on the soil collection frame behind the soil transmission shaft, left and right soil transmission blades with opposite spiral directions respectively provided on the soil transmission shafts on the left and right sides of the soil throwing port, and several soil throwing plates arranged on the soil transmission shaft in front of the soil throwing port, which can throw the soil backward through the soil throwing port; and a soil sieving component including a soil sieving roller rotatably connected to the upper end of the tractor frame, which can transmit the thrown soil into the soil sieving roller; this invention integrates rotary tillage, soil collection, and soil sieving into one unit, resulting in high operating efficiency.

Description

Technical Field

[0001] This invention relates to the field of agricultural machinery technology, and in particular to an integrated machine for sieving and extracting nutrient soil for rice seedling cultivation. Background Technology

[0002] The rice seedling raising process using machine transplanting requires a large amount of nutrient soil. However, currently, the nutrient soil is collected manually per acre in the field and sieved semi-mechanized. This results in a slow seedling raising process, a long production cycle, and low production efficiency. Domestic and internationally produced sieving machines are all fixed, single-function machines that require the use of soil collection and transportation machinery. Their structure and processes are very complex, and they also require a significant amount of auxiliary labor. Summary of the Invention

[0003] The purpose of this section is to outline some aspects of embodiments of the present invention and to briefly describe some preferred embodiments. Simplifications or omissions may be made in this section, as well as in the abstract and title of this application, to avoid obscuring the purpose of these documents; however, such simplifications or omissions should not be construed as limiting the scope of the invention.

[0004] In view of the problems existing in the above and / or existing methods of soil transportation for rice seedling cultivation, the present invention is proposed.

[0005] Therefore, the purpose of this invention is to provide an integrated machine for collecting and sieving nutrient soil for rice seedling cultivation, which can realize online soil collection, sieving, and collection.

[0006] To solve the above-mentioned technical problems, the present invention provides the following technical solution: a rice seedling nutrient soil collection and sieving machine, comprising,

[0007] The main components include a tractor unit, on which a tractor frame is fixedly connected, and on which a soil-boring frame is vertically connected;

[0008] The soil sampling assembly includes a rotary tiller shaft rotatably connected to the front end of the soil sampling frame, on which several rotary tillers are arranged. A support plate is fixedly connected to the bottom of the soil sampling frame behind the rotary tiller shaft. A soil transfer cavity is formed on the inner wall of the soil sampling frame and the upper side of the support plate. A soil transfer shaft is rotatably connected to the soil sampling frame above the support plate. A soil throwing port is opened on the soil sampling frame behind the center of the soil transfer shaft. Left and right soil transfer blades with opposite spiral directions are respectively provided on the soil transfer shafts on the left and right sides of the soil throwing port. Several soil throwing plates are arranged on the soil transfer shaft between the left and right soil transfer blades. The soil throwing plates can throw the soil backward through the soil throwing port.

[0009] The soil screening assembly includes a soil screening roller with a soil screening chamber rotatably connected to the upper end of the traction frame. The soil screening roller has several soil screening holes arranged around its outer circumference, allowing soil thrown backward to be transferred into the soil screening roller. A collection box with an upward-facing collection port is fixedly connected to the frame. A collection support is fixedly connected between the front of the collection box and the traction frame below the soil screening roller. A collection drive wheel and a collection driven wheel are rotatably connected to the front and rear ends of the collection support, respectively. A fine soil conveyor belt is connected between the collection drive wheel and the collection driven wheel. Fine soil transported backward from the fine soil conveyor belt falls into the collection box through the collection port.

[0010] As a preferred embodiment of the rice seedling nutrient soil collection and sieving integrated machine of the present invention, it further includes a soil conveying and crushing component. The soil conveying and crushing component includes a soil conveying frame with an upward opening fixedly connected to the rear side of the soil collection frame. Soil thrown backward from the soil throwing port falls onto the soil conveying frame. The front and rear ends of the soil conveying frame are respectively rotatably connected to a first rotating shaft and a second rotating shaft. The left and right ends of the first rotating shaft inside the soil conveying frame are respectively connected to a first soil conveying sprocket. The left and right ends of the second rotating shaft inside the soil conveying frame are respectively connected to a second soil conveying sprocket. The first soil conveying sprocket is connected to the corresponding second soil conveying sprocket via a first soil conveying chain. A plurality of soil conveying scrapers are connected between the two first soil conveying chains. When the soil conveying scraper rotates to the downward position, the soil conveying scraper can scrape the soil on the soil conveying frame upward.

[0011] As a preferred embodiment of the rice seedling nutrient soil sieving and screening integrated machine of the present invention, the soil conveying and crushing assembly further includes an intermediate soil conveying shell with an upward-facing soil inlet located behind the soil conveying frame and fixedly connected to the traction frame. Soil output from the rear end of the soil conveying frame falls into the intermediate soil conveying shell through the soil inlet. A soil conveying and crushing shell is fixedly connected to the right side of the intermediate soil conveying shell. The upper end of the soil crushing shell is fixedly connected to the traction frame. A third rotating shaft is rotatably connected to the intermediate soil conveying shell. The third rotating shaft is provided with a spirally arranged rear soil conveying blade. The right end of the screening roller is rotatably connected to the soil conveying and crushing shell. Soil in the intermediate soil conveying shell can be input into the soil conveying and crushing shell through the rear soil conveying blade. Soil in the soil conveying and crushing shell can enter the screening chamber.

[0012] As a preferred embodiment of the rice seedling nutrient soil sieving and screening integrated machine of the present invention, the soil crushing shell includes a side soil transmission shell body fixedly connected to the right side of the middle soil transmission shell. The front end of the side soil transmission shell body is fixed with a downwardly inclined and forward-extending soil crushing shell body. The forward-extending end of the side soil transmission shell body is inclined upward. The lower part of the soil crushing shell body is rotatably connected to a crushing shaft. Several crushing blades are arranged on the crushing shaft. The soil in the soil transmission crushing shell is crushed by the crushing blades and enters the soil screening chamber. The left end of the crushing shaft is fixedly connected to a right connecting sleeve. The right end of the soil screening shaft is connected to the right connecting sleeve. Soil cutting rods are also arranged on the outer periphery of the right connecting sleeve.

[0013] As a preferred embodiment of the rice seedling nutrient soil sieving and screening machine of the present invention, wherein: an upper soil transmission shell extending into the sieving chamber is fixedly connected to the left side of the crushing shell body, the left end of the crushing shaft extends into the upper soil transmission shell, the crushing shaft extending into the upper soil transmission shell is provided with spirally arranged upper soil transmission blades, and the left end of the upper soil transmission shell has a soil outlet, and the crushed soil enters the sieving chamber through the upper soil transmission blades.

[0014] As a preferred embodiment of the rice seedling nutrient soil sieving and screening integrated machine of the present invention, wherein: the rear end of the side soil transmission shell body is rotatably connected to a fourth rotating shaft, the upper end of the side soil transmission shell body is rotatably connected to a fifth rotating shaft, the left and right ends of the fourth rotating shaft inside the side soil transmission shell body are respectively connected to lower soil transmission sprockets, the left and right ends of the fifth rotating shaft inside the side soil transmission shell body are respectively connected to upper soil transmission sprockets, the lower soil transmission sprockets are connected to the upper soil transmission sprockets via a second soil transmission chain, a soil transmission ring is connected between the two second soil transmission chains, and a plurality of soil-blocking plates are arranged on the soil transmission ring to prevent soil from sliding down.

[0015] As a preferred embodiment of the rice seedling nutrient soil sieving and screening machine of the present invention, the center of the soil screening roller is rotatably connected to a soil screening shaft, and several soil cutting rods are arranged on the outer periphery of both the left and right ends of the soil screening shaft.

[0016] As a preferred embodiment of the rice seedling nutrient soil sieving and screening machine of the present invention, wherein: a debris cleaning sleeve that can rotate or slide along the outer circumference of the sieving shaft is connected to the sieving shaft, a debris cleaning shovel is fixedly connected to the outer circumference of the debris cleaning sleeve, and the end of the debris cleaning shovel away from the debris cleaning sleeve is slidably connected to the inner wall of the sieving roller.

[0017] As a preferred embodiment of the rice seedling nutrient soil sieving and screening integrated machine of the present invention, the following features are provided: a left connecting sleeve rotatably connected to the sieving roller is connected to the left side of the sieving shaft; several cutting rods are arranged around the outer periphery of the left connecting sleeve; a mounting countersunk hole is opened at the right end of the sieving shaft; a rotatable transmission screw is connected inside the mounting countersunk hole; a movable nut is threaded onto the transmission screw; a movable block is rotatably connected to the movable nut; the limiting step of the movable nut is fitted against one side of the movable block in the axial direction; a limiting plate is sleeved on the transmission screw and fixedly connected to the movable nut; the limiting plate is fitted against the other side of the movable block in the axial direction. Several sliding grooves connected to the mounting holes are arranged around the outer periphery of the soil screening shaft close to the left connecting sleeve. Several limiting plates corresponding to the sliding grooves are connected around the outer periphery of the moving block. The limiting plates can slide along the corresponding sliding grooves. An annular rotating groove is opened at one end of the debris cleaning sleeve relative to the left connecting sleeve. The debris cleaning sleeve is rotatably connected to the outer periphery of the limiting plate through the rotating groove. A synchronous moving sleeve sleeve is fixedly connected to one end of the debris cleaning sleeve relative to the left connecting sleeve and sleeved on the soil screening shaft. The right end of the transmission screw is rotatably connected to the crushing shell body. A debris cleaning motor is fixedly connected to the right side of the soil crushing shell body. The debris cleaning motor is connected to the transmission screw.

[0018] As a preferred embodiment of the rice seedling nutrient soil sieving and screening machine of the present invention, wherein: a soil retaining ring is fixed on the moving block, the soil retaining ring always covers the sliding groove, and the outer circumference of the soil retaining ring is attached to the inner ring of the sieving shaft.

[0019] The beneficial effects of this invention are as follows: The rotary tiller throws the tilled soil backward, and the soil falling onto the support plate is transported to the center of the soil-collecting frame by the left and right soil-transfer blades. The soil concentrated in the central area of ​​the soil-collecting frame is thrown backward by the throwing plate and falls onto the soil transfer frame through the throwing port, thus achieving soil collection. The moving soil transfer scraper scrapes the soil in the soil transfer frame, and the soil moving backward falls into the middle soil transfer housing through the inlet. The rear soil transfer blades transport the soil into the side soil transfer housing body. The soil entering the side soil transfer housing body is lifted upward and falls into the soil crushing housing body. The crushing blade rotates and crushes the soil. The crushed soil is transported into the screening roller by the upper soil transfer blade. The rotation speed between the screening roller and the screening shaft is different. The cutting rod on the right connecting sleeve is set close to the left side of the upper soil transfer housing. The soil output from the upper soil transfer housing to the left is further cut into uncrushed soil clods by the continuously rotating cutting rod, which further facilitates soil collection. To improve soil screening efficiency, the debris-clearing shovel and the screening roller rotate synchronously. Fine soil sieved through the screening holes falls onto the fine soil conveyor belt, thus achieving screening. The conveyor belt transports the fine soil upwards, and it falls from the rear end of the conveyor belt into a collection box for collection. After the screening operation is complete, adjust the angle of the debris-clearing shovel so that the bottom center of the shovel is at its lowest position. At this time, stones, weeds, and other debris accumulate on the screening roller to the right of the shovel or inside the shovel. These can be placed on the right side of the screening roller. The debris cleaning box, when activated by the motor, moves the debris cleaning shovel to the right, pushing the debris inside the sieving roller into the debris cleaning box. When the right side of the debris cleaning shovel is close to the right side of the sieving roller, the debris can be manually pushed into the debris cleaning box, thus cleaning the debris inside the sieving roller, facilitating the next sieving operation and improving the sieving effect. In summary, this invention integrates soil collection, sieving, soil gathering, and debris cleaning into one unit, which helps improve the production efficiency of rice seedling nutrient soil. Attached Figure Description

[0020] To more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the following description of the embodiments will be briefly introduced. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. Wherein:

[0021] Figure 1 The three-dimensional structure of the present invention Figure 1 .

[0022] Figure 2 for Figure 1 A magnified view of a portion of point A in the middle.

[0023] Figure 3 The three-dimensional structure of the present invention Figure 2 .

[0024] Figure 4 for Figure 3 A magnified view of a section at point B.

[0025] Figure 5 This is a three-dimensional structural diagram of the soil transfer frame in the present invention in a transparent state.

[0026] Figure 6 for Figure 5 A magnified view of a section at point C.

[0027] Figure 7 The three-dimensional structure of the present invention Figure 3 .

[0028] Figure 8 for Figure 7 A magnified view of a section at point D.

[0029] Figure 9 This is a three-dimensional structural diagram of the soil transport and crushing shell in the present invention when it is in a transparent state.

[0030] Figure 10 for Figure 9 A magnified view of a section at point E in the middle.

[0031] Figure 11 for Figure 9 A magnified view of a section at point F.

[0032] Figure 12 The three-dimensional structure of the present invention Figure 4 .

[0033] Figure 13 for Figure 11 A magnified view of a section at point G.

[0034] Figure 14 This is a partial view of the soil screening roller.

[0035] Figure 15 for Figure 14 A magnified view of a section at point H.

[0036] Figure 16 for Figure 14 A magnified view of a section at point I.

[0037] Figure 17 This is a three-dimensional structural diagram of the debris cleaning sleeve and debris cleaning shovel fixed together in this invention.

[0038] Figure 18 This is a three-dimensional structural diagram of the synchronously moving sleeve in this invention.

[0039] In the diagram, 100 is the soil-collecting assembly, 101 is the soil-collecting driven sprocket, 102 is the soil-collecting transmission chain, 103 is the first soil-collecting transmission sprocket, 104 is the rotary tiller blade, 105 is the left soil transfer blade, 106 is the soil-throwing plate, 107 is the right soil transfer blade, 108 is the soil transfer shaft, 109 is the rotary tiller blade shaft, 200 is the main assembly, 201 is the soil-collecting frame, 201a is the soil-throwing port, 201b is the support plate, 202 is the traction frame, 203 is the trailer, 204 is the lifting rod, 205 is the lifting drive, 300 is the soil-screening assembly, 301 is the collection box, 301a is the collection port, 302 is the fine soil conveyor belt, 303 is the collection bracket, 304 is the soil-screening roller, 304a is the soil-screening hole, and 30 is the soil-screening hole. 4b Slide rail, 305 Soil screening shaft, 305a Sliding groove, 306 Collection drive shaft, 307 Right connecting sleeve, 308 Debris cleaning shovel, 309 Debris cleaning motor, 310 Transmission screw, 311 Moving nut, 312 Synchronous moving sleeve, 313 Rotation limit plate, 314 Moving block, 314a Soil retaining ring, 315 Debris cleaning sleeve, 315a Rotating sinkhole, 316 Limiting plate, 317 Soil cutting rod, 318 Left connecting sleeve, 400 Power transmission assembly, 401 Second side soil sampling sprocket, 402 Third side soil sampling sprocket, 403 Second side soil sampling chain, 404 Middle chain for soil screening, 405 Middle transmission box, 406 Fourth transmission sprocket. 407 Soil sampling intermediate chain, 408 Soil screening intermediate sprocket, 409 First side soil sampling chain, 410 Second soil sampling drive sprocket, 411 Soil sampling intermediate shaft, 412 Second drive shaft, 413 First side soil sampling sprocket, 414 Soil sampling intermediate sprocket, 415 Collection drive sprocket, 416 Soil screening intermediate shaft, 417 First drive sprocket, 418 Third drive sprocket, 419 First drive shaft, 420 Second drive sprocket, 421 Soil screening side chain, 422 Collection chain, 423 Collection driven sprocket, 424 Soil screening side sprocket, 425 Drive wheel, 426 Soil screening drive belt, 427 Soil screening wheel, 500 Soil conveying and crushing assembly, 501 Soil 501a Soil conveying and crushing shell, 501b Side soil conveying shell body, 502 Soil conveying frame, 503 First soil conveying chain, 504 Soil conveying scraper, 505 Second soil conveying sprocket, 506 Fourth rotating shaft, 507 Lower soil conveying sprocket, 508 Second soil conveying chain, 509 Retaining plate, 510 Soil conveying ring, 511 Crushing shaft, 511a Slot, 512 Crushing blade, 513 Upper soil conveying blade, 514 Upper soil conveying shell, 515 Middle soil conveying shell, 516 Rear soil conveying blade, 517 Second rotating shaft, 518 Fifth rotating shaft, 519 Upper soil conveying sprocket. Detailed Implementation

[0040] To make the above-mentioned objects, features and advantages of the present invention more apparent and understandable, the specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

[0041] Many specific details are set forth in the following description in order to provide a full understanding of the invention. However, the invention may also be practiced in other ways different from those described herein, and those skilled in the art can make similar extensions without departing from the spirit of the invention. Therefore, the invention is not limited to the specific embodiments disclosed below.

[0042] Secondly, the term "one embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in one embodiment" appearing in different places in this specification does not necessarily refer to the same embodiment, nor is it a single or selective embodiment that is mutually exclusive with other embodiments.

[0043] Example 1

[0044] Reference Figure 1 and Figure 2 This is the first embodiment of the present invention, which provides an integrated machine for collecting and sieving nutrient soil for rice seedling raising, which can realize the integrated operation of tillage, soil collection, soil sieving and soil collection.

[0045] A rice seedling nutrient soil collection and sieving integrated machine includes a main component 200, which includes a tractor. A tractor frame 202 is fixedly connected to the frame of the tractor. A soil collection frame 201 is vertically connected to the tractor frame 202. Two lifting drives 205, which are spaced apart in the left-right direction, are hinged to the tractor frame 202. The lifting drives 205 are preferably hydraulic cylinders. The forward end of the lifting drive 205 is connected to a telescopic rod that is inclined downward and extends forward, capable of reciprocating linear motion. The front end of the telescopic rod is hinged to the rear end of the soil collection frame 201. The two lifting drives 205 are symmetrically arranged about the center of the soil collection frame 201 in the left-right direction. A soil collection component 100 for collecting soil is connected to the soil collection frame 201, and a soil screening component 300 for screening soil is connected to the tractor frame 202. A soil conveying and crushing component 500 for conveying and crushing soil in the direction of the soil screening roller 304 is provided between the soil collection component 100 and the soil screening component 300.

[0046] In the initial state, that is, before the application is in the field, the lifting rod 204 is in the retracted state; when the walking device drives the application to the field to prepare for operation via the traction frame 202, the lifting drive 205 is activated, causing the lifting rod 204 to extend. The lifting rod 204 drives the soil-taking frame 201 to rotate downward. When the rotary tiller shaft 109 descends to the required height, that is, when the tillage depth of the rotary tiller 104 meets the operation requirements, the lifting drive 205 stops operating.

[0047] Specifically, the soil-taking assembly 100 includes a soil-taking frame 201 with a rotary tiller shaft 109 rotatably connected to its front end. Several rotary tiller blades 104 are arranged on the rotary tiller shaft 109. A support plate 201b is fixedly connected to the bottom of the soil-taking frame 201 behind the rotary tiller shaft 109. A soil transfer chamber is formed between the inner wall of the soil-taking frame 201 and the upper side of the support plate 201b. A soil transfer shaft 108 is rotatably connected to the soil-taking frame 201 above the support plate 201b. A soil discharge port 201a is opened on the soil-taking frame 201 behind the center of the soil transfer shaft 108. Soil transfer shafts 108 are located on the left and right sides of the soil discharge port 201a. The machine is equipped with a left soil conveying blade 105 and a right soil conveying blade 107, which are spirally arranged and have opposite spiral directions. Several soil throwing plates 106 are arranged on the soil conveying shaft 108 between the left soil conveying blade 105 and the right soil conveying blade 107. The soil throwing plates 106 can throw the soil backward through the soil throwing port 201a. The rotary tillage blade shaft 109, which extends to the left outside the soil-collecting frame 201, and the soil conveying shaft 108 are respectively connected to the soil-collecting driven sprocket 101 and the first soil-collecting transmission sprocket 103. The first soil-collecting transmission sprocket 103 is connected to the soil-collecting driven sprocket 101 via the soil-collecting transmission chain 102.

[0048] Specifically, the soil screening assembly 300 includes a soil screening roller 304 with a soil screening cavity rotatably connected to the upper end of the traction frame 202. The soil screening roller 304 has a plurality of soil screening holes 304a arranged on its outer periphery, and the soil thrown backward can be transferred into the soil screening roller 304. A collection box 301 with an upward collection port 301a is fixedly connected to the frame. A collection support 303 is fixedly connected between the front of the collection box 301 and the traction frame 202 below the soil screening roller 304. A collection drive wheel and a collection driven wheel are rotatably connected to the front and rear ends of the collection support 303, respectively. A fine soil conveyor belt 302 is connected between the collection drive wheel and the collection driven wheel. The fine soil conveyed backward from the fine soil conveyor belt 302 falls into the collection box 301 through the collection port 301a.

[0049] During operation, the rotary tiller shaft 109 rotates, driving the rotary tiller blades 104 to rotate. The rotary tiller blades 104 throw the tilled soil backward. The soil falling onto the support plate 201b is transported to the center of the soil-collecting frame 201 via the left soil conveying blade 105 and the right soil conveying blade 107. The soil concentrated in the central area of ​​the soil-collecting frame 201 is thrown backward by the soil-throwing plate 106. The soil output through the soil-throwing port 201a is transported into the soil-screening roller 304. The fine soil screened through the soil-screening hole 304a falls onto the fine soil conveyor belt 302, achieving soil screening. The fine soil conveyor belt 302 transports the fine soil upward, and the fine soil falls from the rear end of the fine soil conveyor belt 302 into the collection box 301, achieving fine soil collection. This embodiment integrates soil collection, soil screening, and soil collection, improving the production efficiency of rice seedling nutrient soil.

[0050] Example 2

[0051] Reference Figures 9-13 This is the second embodiment of the present invention. This embodiment provides an integrated rice seedling nutrient soil collection and sieving machine, which can further realize the transmission and crushing of soil after soil collection and improve soil sieving efficiency.

[0052] Specifically, the soil conveying and crushing assembly 500 includes a soil conveying frame 502 with an upward opening fixedly connected to the rear side of the soil scraper frame 201, and a middle soil conveying shell 515 with an upward-facing soil inlet fixedly connected to the rear of the soil conveying frame 502 and to the traction frame 202. Soil thrown backward from the throwing port 201a falls onto the soil conveying frame 502. The front and rear ends of the soil conveying frame 502 are respectively rotatably connected to a first rotating shaft and a second rotating shaft 517. The left and right ends of the second rotating shaft 517 of the soil conveying frame 502 facing outward are rotatably connected to the traction frame 202. The left and right ends of the first rotating shaft inside the soil conveying frame 502 are respectively connected to a first soil conveying sprocket. The left and right ends of the second rotating shaft 517 inside the soil conveying frame 502 are respectively connected to a first soil conveying sprocket. A second soil transmission sprocket 505 is connected to the first soil transmission sprocket, which is connected to the corresponding second soil transmission sprocket 505 via a first soil transmission chain 503. Several soil transmission scrapers 504 are connected between the two first soil transmission chains 503. When the soil transmission scrapers 504 rotate downwards, they can scrape the soil on the soil transmission frame 502 upwards. The soil output from the rear end of the soil transmission frame 502 falls into the intermediate soil transmission housing 515 through the inlet. A soil transmission crushing housing 501 is fixedly connected to the right side of the intermediate soil transmission housing 515. The upper end of the soil transmission crushing housing 501 is fixedly connected to the traction frame 202. A third rotating shaft is rotatably connected to the intermediate soil transmission housing 515. The third rotating shaft is equipped with a screw... The rear soil conveying blade 516 is rotated. The soil conveying and crushing housing 501 includes a side soil conveying housing body 501b fixedly connected to the right side of the middle soil conveying housing 515. The front end of the side soil conveying housing body 501b is fixed with a downwardly inclined and forward-extending soil crushing housing body 501a. The forward-extending end of the side soil conveying housing body 501b is inclined upward. The rear end of the side soil conveying housing body 501b is rotatably connected to a fourth rotating shaft 506 fixedly connected to a third rotating shaft. The upper end of the side soil conveying housing body 501b is rotatably connected to a fifth rotating shaft 518. The left and right ends of the fourth rotating shaft 506 inside the side soil conveying housing body 501b are respectively connected to lower soil conveying sprockets 507. The left and right ends of the fifth rotating shaft 518 inside the main body 501b are respectively connected to the upper soil transmission sprocket 519. The lower soil transmission sprocket 507 is connected to the upper soil transmission sprocket 519 via the second soil transmission chain 508. A soil transmission ring 510 is connected between the two second soil transmission chains 508. Several baffles 509 are arranged on the soil transmission ring 510 to prevent soil from sliding down. The lower part of the soil crushing shell body 501a is rotatably connected to the crushing shaft 511. Several crushing blades 512 are arranged on the crushing shaft 511. The left end of the crushing shaft 511 is fixedly connected to the right connecting sleeve 307. The right end of the soil screening shaft 305 is connected to the right connecting sleeve 307. The left side of the crushing shell body 501a is fixedly connected to the upper soil transmission shell 514 that extends into the soil screening chamber.The left end of the crushing shaft 511 extends into the upper soil conveying housing 514. The crushing shaft 511, extending into the upper soil conveying housing 514, is equipped with spirally arranged upper soil conveying blades 513. The left end of the upper soil conveying housing 514 has a soil outlet. The crushed soil enters the sieve chamber through the upper soil conveying blades 513.

[0053] Soil thrown backward by the soil-throwing plate 106 falls into the soil transfer frame 502. The second rotating shaft 517 rotates, and the two first soil transfer chains 503 drive several soil transfer scrapers 504 to move. The soil transfer scrapers 504 scrape the soil in the soil transfer frame 502, and the backward-moving soil falls into the middle soil transfer housing 515 through the soil inlet. The third rotating shaft rotates, and the soil is transferred into the side soil transfer housing body 501b by the rear soil transfer blades 516. The third rotating shaft drives the fourth rotating shaft 506 to rotate, and the fourth rotating shaft 506 drives the lower soil transfer sprocket 507 to rotate. The lower soil transfer sprocket 507 drives the upper soil transfer chain via the second soil transfer chain 508. As wheel 519 rotates, the second soil conveying chain 508 drives the soil conveying ring 510 to move. The soil conveying ring 510 drives the retaining plate 509 to move. The retaining plate 509 can scrape the soil onto the soil conveying ring 510. The upper end face of the soil conveying ring 510 moves upward continuously, driving the soil to rise. The retaining plate 509 can also prevent the soil from sliding down. The soil that is lifted upward falls into the soil crushing shell body 501a. The crushing shaft 511 rotates, driving the crushing blade 512 to rotate. The crushing blade 512 crushes the soil. The crushed soil is conveyed into the screening roller 304 through the upper soil conveying blade 513. When the crushed soil is screened again, the screening is easier and more efficient.

[0054] Example 3

[0055] Reference Figure 4 , Figure 5 and Figure 14 This is the third embodiment of the present invention, which provides an integrated machine for sieving and removing nutrient soil for rice seedling raising, which can further facilitate soil sieving and improve soil sieving efficiency.

[0056] Specifically, a soil screening shaft 305 is rotatably connected to the center of the soil screening roller 304. A left connecting sleeve 318 is rotatably connected to the left side of the soil screening shaft 305 and is connected to the soil screening roller 304. Several cutting rods 317 are arranged on the outer periphery of the right connecting sleeve 307 and the left connecting sleeve 318. The rotation speed of the soil screening shaft 305 is greater than the rotation speed of the soil screening roller 304.

[0057] The rotational speeds of the soil screening roller 304 and the soil screening shaft 305 are different. The cutting rod 317 on the right connecting sleeve 307 is set close to the left side of the upper soil transmission housing 514. The soil output from the upper soil transmission housing 514 to the left is further cut into uncrushed soil clods by the continuously rotating cutting rod 317, which further facilitates soil screening and improves soil screening efficiency.

[0058] Example 4

[0059] Reference Figures 14-18 This is the fourth embodiment of the present invention. This embodiment provides an integrated rice seedling nutrient soil sieving machine. After sieving, it can further clean the debris inside the sieving roller 304 and remove it from the sieving roller 304, thereby improving the effect of the next sieving.

[0060] Specifically, a debris cleaning sleeve 315 is connected to the soil screening shaft 305, which can rotate or slide along the outer periphery of the soil screening shaft 305. A debris cleaning shovel 308 is fixedly connected to the outer periphery of the debris cleaning sleeve 315. The end of the debris cleaning shovel 308 away from the debris cleaning sleeve 315 is slidably connected to the inner wall of the soil screening roller 304. The upward-facing end of the debris cleaning shovel 308 has an inclined surface that slopes downward from left to right. The right end of the debris cleaning shovel 308 is to the right of the debris cleaning sleeve 315, increasing the distance that the debris cleaning sleeve 315 moves to the right. This ensures that before the debris cleaning sleeve 315 touches the left side of the right connecting sleeve 307, the right end of the debris cleaning shovel 308 has already exceeded the right side of the soil screening roller 304 or is close to the right side of the soil screening roller 304, making it convenient to clean the debris inside the debris cleaning shovel 308.

[0061] Specifically, the right-facing end of the soil screening shaft 305 has a countersunk hole, into which a rotatable transmission screw 310 is connected. A movable nut 311 is threaded onto the transmission screw 310, and a movable block 314 is rotatably connected to the movable nut 311. The limiting step of the movable nut 311 is fitted against one side of the movable block 314 in the axial direction. A limiting plate 316, which is fixedly connected to the movable nut 311, is sleeved on the transmission screw 310. The limiting plate 316 is fitted against the movable block 314 in the axial direction. On the other side of the direction, several sliding grooves 305a communicating with the mounting holes are arranged around the outer periphery of the soil screening shaft 305 close to the left connecting sleeve 318. Several rotation limiting plates 313 corresponding to the sliding grooves 305a are fixedly connected to the outer periphery of the moving block 314. The rotation limiting plates 313 can slide along the corresponding sliding grooves 305a. The debris cleaning sleeve 315 has an annular rotating groove 315a at one end opposite the left connecting sleeve 318. The debris cleaning sleeve 315 is rotatably connected to the rotation limiting plate 315a via the rotating groove 315a. Around the outer periphery of plate 313, a synchronously moving sleeve 312, which is sleeved on the soil screening shaft 305, is fixedly connected to one end of the debris cleaning sleeve 315 relative to the left connecting sleeve 318. The left end of the transmission screw 310 is rotatably connected inside the soil screening shaft 305, and the right end of the transmission screw 310 is rotatably connected inside the crushing shaft 511. A debris cleaning motor 309 is fixedly connected to the right side of the soil crushing housing body 501a. The debris cleaning motor 309 is connected to the transmission screw 310. A soil retaining ring 31 is fixed on the moving block 314. 4a. The outer periphery of the limiting plate 316 is attached to the inner ring of the retaining ring 314a. The inner ring of the retaining ring 314a is circular. The retaining ring 314a always covers the sliding groove 305a. The outer periphery of the retaining ring 314a is attached to the inner ring of the sieve shaft 305. The crushing shaft 511 has an annular slot 511a on the outer periphery of the side of the moving block 314 in the axial direction. The retaining ring 314a can move horizontally along the slot 511a, increasing the distance that the debris cleaning shovel 308 moves to the right, which facilitates the cleaning of debris.

[0062] The outer edge of the debris-cleaning shovel 308 has several sliding grooves, and the inner side of the screening roller 304 has several slide rails 304b corresponding to the sliding grooves. The debris-cleaning shovel 308 can be slidably connected to the slide rails 304b via the sliding grooves, so that the debris-cleaning shovel 308 and the screening roller 304 can rotate synchronously. After the screening operation is completed, the angle of the debris-cleaning shovel 308 is adjusted so that the bottom center of the debris-cleaning shovel 308 is at its lowest position. At this time, stones, weeds and other debris accumulate in the screening roller 304 on the right side of the debris-cleaning shovel 308, with a small portion remaining in the debris-cleaning shovel 308. The screening shaft 305 and the screening roller 304 stop rotating. A debris-cleaning box can be placed on the right side of the screening roller 304. The debris-cleaning motor 309 is activated, and the transmission screw... Rotation of screw 310 causes the moving nut 311 to move. Screw 310 and limit plate 316 move the moving block 314. Moving block 314 moves the debris cleaning sleeve 315 via limit plate 313. Debris cleaning sleeve 315 moves the debris cleaning shovel 308. The direction of movement of debris cleaning motor 309 is controlled, causing debris cleaning shovel 308 to move to the right. Debris cleaning shovel 308 pushes debris in the soil screening roller 304. The debris is pushed into the debris cleaning box. When the right side of debris cleaning shovel 308 is close to the right side of soil screening roller 304, the debris in debris cleaning shovel 308 can be manually pushed into the debris cleaning box to clean the debris in soil screening roller 304, facilitating the next soil screening operation and improving the soil screening effect.

[0063] Through Examples 1 to 4, the present invention integrates soil collection, sieving, collection and debris removal into one process, which helps to improve the production efficiency of rice seedling nutrient soil.

[0064] Example 5

[0065] Reference Figures 3-8 , Figure 12 and Figure 13 This is the fourth embodiment of the present invention. This embodiment provides an integrated machine for sieving and removing nutrient soil for rice seedling raising, which can further realize the rotation of each shaft and the sieving roller 304.

[0066] Specifically, it also includes a transmission assembly 400, which includes an intermediate transmission box 405 fixedly connected to the traction frame 202. The left and right ends of the intermediate transmission box 405 are respectively connected to a first transmission shaft 419 and a second transmission shaft 412. A first transmission sprocket 417, a second transmission sprocket 420, and a third transmission sprocket 418 are connected to the first transmission shaft 419. A collection drive shaft 306 extending to the left of the collection bracket 303 is connected to a collection transmission sprocket 415. The traction drive shaft 415 is located behind the collection transmission sprocket 415. A driven sprocket 423 for collecting is rotatably connected to the frame 202. A first drive sprocket 417 is connected to the driven sprocket 423 via a collecting chain 422. A collecting drive sprocket 415 cooperates with the collecting chain 422. A middle sprocket 408 for collecting is connected to a soil-sieving shaft 305 extending to the left of the soil-sieving roller 304. A second drive sprocket 420 is connected to the middle sprocket 408 via the middle sprocket 404. A middle sprocket 416 for collecting is rotatably connected to the traction frame 202 behind the soil-sieving roller 304. The upper part is connected to the drive wheel 425 and the soil screening side sprocket 424. The soil screening roller 304 is connected to the outer periphery of the soil screening wheel 427. The drive wheel 425 is connected to the soil screening wheel 427 via the soil screening drive belt 426. The outer diameter of the drive wheel 425 is smaller than the outer diameter of the soil screening wheel 427. The soil screening side sprocket 424 is connected to the third drive sprocket 418 via the soil screening side chain 421. The second drive shaft 412 is connected to the fourth drive sprocket 406. The second rotating shaft 517, which extends to the right out of the soil transmission frame 502, is connected to the soil taking intermediate sprocket 414 and the first side sprocket 427. A first left soil transmission sprocket is connected to a second rotating shaft 517 extending to the left outside the soil transmission frame 502, and a second left soil transmission sprocket is connected to a third rotating shaft extending to the left outside the intermediate soil transmission housing 515. The first left soil transmission sprocket is connected to the second left soil transmission sprocket via a left soil transmission chain. A fourth transmission sprocket 406 is connected to a soil extraction intermediate sprocket 414 via a soil extraction intermediate chain 407. A soil extraction intermediate shaft 411 is rotatably connected between the right side of the soil transmission frame 502 and the right end of the soil extraction machine frame 201. The soil extraction intermediate shaft 411 is connected to a second soil extraction drive sprocket 410 and a second side soil extraction sprocket 401. The first side soil extraction sprocket 413 is connected to the second soil extraction drive sprocket 410 via a first side soil extraction chain 409. The soil extraction machine extending to the right outside the soil extraction frame 201 is connected to a third side soil extraction sprocket 402. The second side soil extraction sprocket 401 is connected to the third side soil extraction sprocket 402 via a second side soil extraction chain 403.

[0067] This application connects a towing frame and a traveling device. The traveling device drives the trailer 203 forward via the towing frame. A hydraulic motor mounted on the traveling device provides power to the intermediate transmission box 405 (this is prior art; the traveling device is not shown, but it can preferably be a tractor). During soil screening, the first drive shaft 419 and the second drive shaft 412 of the intermediate transmission box 405 simultaneously output power. The first drive shaft 419 drives the first drive sprocket 417, the second drive sprocket 420, and the third drive sprocket 418 to rotate. The first drive sprocket 417 drives the collecting drive sprocket 415 to rotate via the collecting chain 422. The collection drive sprocket 415 drives the collection drive wheel to rotate, and the collection drive wheel drives the collection driven belt to rotate via the fine soil conveyor belt 302; the second transmission sprocket drives the soil screening intermediate sprocket 408 to rotate via the soil screening intermediate chain 404, and the soil screening sprocket drives the soil screening shaft 305 to rotate; the third transmission sprocket 418 drives the soil screening side sprocket 424 to rotate via the soil screening side chain 421, and the soil screening side sprocket 424 drives the soil screening intermediate shaft 416 to rotate, and the soil screening intermediate shaft 416 drives the transmission wheel 425 to rotate, and the transmission wheel 425 drives the soil screening wheel 427 to rotate via the soil screening transmission belt 426, and the soil screening wheel 427 drives the soil screening roller 304 to rotate. The speed of the soil screening roller 304 is less than the speed of the soil screening shaft 305; the second drive shaft 412 drives the fourth drive sprocket 406 to rotate, the fourth drive sprocket 406 drives the soil sampling intermediate sprocket 414 to rotate via the soil sampling intermediate chain 407, the soil sampling intermediate sprocket 414 drives the second rotating shaft 517 to rotate, the second rotating shaft 517 drives the first side soil sampling sprocket 413 to rotate, the first side soil sampling sprocket 413 drives the second soil sampling transmission sprocket 410 to rotate via the first side soil sampling chain 409, the second soil sampling transmission sprocket 410 drives the soil sampling intermediate shaft 411 to rotate, and the soil sampling intermediate shaft 411 drives the second side soil sampling sprocket 405 to rotate. 1. Rotation: The second-side soil-collecting sprocket 401 drives the third-side soil-collecting sprocket 402 to rotate via the second-side soil-collecting chain 403. The third-side soil-collecting sprocket 402 drives the soil transmission shaft 108 to rotate. The soil transmission shaft 108 drives the first soil-collecting transmission sprocket 103 to rotate. The first soil-collecting transmission sprocket 103 drives the soil-collecting driven sprocket 101 to rotate via the soil-collecting transmission chain 102. The soil-collecting driven sprocket 101 drives the rotary tillage blade shaft 109 to rotate. In this embodiment, an intermediate transmission box 405 simultaneously provides power to each rotating component in the soil-collecting assembly 100, the soil transmission and crushing assembly 500, and the soil screening assembly 300.

[0068] It should be noted that the direction "forward" mentioned in the above embodiments is consistent with the forward direction of the walking device, the opposite direction to forward is backward, and the direction perpendicular to the forward and backward direction and parallel to the ground is the left and right direction. The above embodiments are only used to illustrate the technical solution of the present invention and are not intended to limit it. Although the present invention has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solution of the present invention without departing from the spirit and scope of the technical solution of the present invention, and all such modifications or substitutions should be covered within the scope of the technical solution of the present invention.

Claims

1. A rice seedling nutrient soil sieving and extracting integrated machine, characterized in that: It includes, The main component (200) includes a tractor, on which a tractor frame (202) is fixedly connected, and a soil scraper frame (201) is vertically connected to the tractor frame (202). The soil sampling assembly (100) includes a soil sampling frame (201) with a rotary tiller shaft (109) rotatably connected to its front end. A plurality of rotary tiller blades (104) are arranged on the rotary tiller shaft (109). A support plate (201b) is fixedly connected to the bottom of the soil sampling frame (201) behind the rotary tiller shaft (109). A soil transfer cavity is formed between the inner wall of the soil sampling frame (201) and the upper side of the support plate (201b). A soil transfer shaft (108) is rotatably connected to the soil sampling frame (201) above the support plate (201b). (108) A soil throwing port (201a) is opened on the soil sampling frame (201) at the rear of the center. The soil transmission shaft (108) on the left and right sides of the soil throwing port (201a) is respectively equipped with a left soil transmission blade (105) and a right soil transmission blade (107) with opposite spiral directions. Several soil throwing plates (106) are arranged on the soil transmission shaft (108) between the left soil transmission blade (105) and the right soil transmission blade (107). The soil throwing plates (106) can throw the soil backward through the soil throwing port (201a). The soil screening assembly (300) includes a soil screening roller (304) with a soil screening cavity rotatably connected to the upper end of the traction frame (202). The soil screening roller (304) has a plurality of soil screening holes (304a) arranged on its outer periphery. Soil thrown backward can be transferred into the soil screening roller (304). A collection box (301) with an upward collection port (301a) is fixedly connected to the frame. A collection bracket (303) is fixedly connected between the front part of the collection box (301) and the traction frame (202) below the soil screening roller (304). A collection drive wheel and a collection driven wheel are rotatably connected to the front and rear ends of the collection bracket (303), respectively. A fine soil conveyor belt (302) is connected between the collection drive wheel and the collection driven wheel. Fine soil conveyed backward from the fine soil conveyor belt (302) falls into the collection box (301) through the collection port (301a). A soil conveying and crushing assembly (500) includes a soil conveying frame (502) with an upward opening fixedly connected to the rear side of the soil scraper frame (201), and a middle soil conveying shell (515) with an upward inlet fixedly connected to the rear of the soil conveying frame (502) and the traction frame (202). Soil thrown backward from the throwing port (201a) falls onto the soil conveying frame (502). The soil conveying frame (502) has two front and rear sections. The soil transfer frame (502) is rotatably connected to a first rotating shaft and a second rotating shaft (517) respectively. The left and right ends of the first rotating shaft inside the soil transfer frame (502) are respectively connected to first soil transfer sprockets. The left and right ends of the second rotating shaft (517) inside the soil transfer frame (502) are respectively connected to second soil transfer sprockets (505). The first soil transfer sprockets are connected to the corresponding second soil transfer sprockets (505) via a first soil transfer chain (503). The two first soil transfer chains (503) are connected... There are several soil conveying scrapers (504). When the soil conveying scraper (504) rotates to face downwards, the soil conveying scraper (504) can scrape the soil on the soil conveying frame (502) upwards. The soil output from the rear end of the soil conveying frame (502) falls into the middle soil conveying shell (515) through the soil inlet. The right side of the middle soil conveying shell (515) is fixedly connected to the soil conveying crushing shell (501). The upper end of the soil conveying crushing shell (501) is fixedly connected to the traction frame (202). The middle soil conveying shell (515) is rotatably connected to the third rotating shaft. The third rotating shaft is provided with a spirally arranged rear soil conveying blade (516). The right end of the soil screening roller (304) is rotatably connected to the soil conveying crushing shell (501). The soil in the middle soil conveying shell (515) can be input into the soil conveying crushing shell (501) through the rear soil conveying blade (516). The soil in the soil conveying crushing shell (501) can enter the soil screening chamber.

2. The rice seedling nutrient soil collection and sieving integrated machine as described in claim 1, characterized in that: The soil conveying and crushing housing (501) includes a side soil conveying housing body (501b) fixedly connected to the right side of the middle soil conveying housing (515). The front end of the side soil conveying housing body (501b) is fixed with a downwardly inclined and forward-extending soil crushing housing body (501a). The forward-extending end of the side soil conveying housing body (501b) is inclined upward. The lower part of the soil crushing housing body (501a) is rotatably connected to a crushing shaft (511). Several crushing blades (512) are arranged on the crushing shaft (511). The soil in the soil conveying and crushing housing (501) is crushed by the crushing blades (512) and then enters the soil screening chamber.

3. The rice seedling nutrient soil collection and sieving integrated machine as described in claim 2, characterized in that: The left side of the crushing housing body (501a) is fixedly connected to an upper soil transmission housing (514) that extends into the soil screening chamber. The left end of the crushing shaft (511) extends into the upper soil transmission housing (514). The crushing shaft (511) that extends into the upper soil transmission housing (514) is provided with spirally arranged upper soil transmission blades (513). The left end of the upper soil transmission housing (514) has a soil outlet. The crushed soil enters the soil screening chamber through the upper soil transmission blades (513). The left end of the crushing shaft (511) is fixedly connected to a right connecting sleeve (307). The right end of the soil screening shaft (305) is connected to the right connecting sleeve (307). Cutting rods (317) are also arranged on the outer periphery of the right connecting sleeve (307).

4. The rice seedling nutrient soil collection and sieving integrated machine as described in claim 2, characterized in that: The rear end of the side soil transmission housing body (501b) is rotatably connected to a fourth rotating shaft (506), and the upper end of the side soil transmission housing body (501b) is rotatably connected to a fifth rotating shaft (518). The left and right ends of the fourth rotating shaft (506) inside the side soil transmission housing body (501b) are respectively connected to lower soil transmission sprockets (507), and the left and right ends of the fifth rotating shaft (518) inside the side soil transmission housing body (501b) are respectively connected to upper soil transmission sprockets (519). The lower soil transmission sprocket (507) is connected to the upper soil transmission sprocket (519) via a second soil transmission chain (508). A soil transmission ring (510) is connected between the two second soil transmission chains (508), and a number of retaining plates (509) are arranged on the soil transmission ring (510) to prevent soil from sliding.

5. The rice seedling nutrient soil collection and sieving integrated machine as described in any one of claims 1 to 3, characterized in that: The center of the soil screening roller (304) is rotatably connected to the soil screening shaft (305), and several soil cutting rods (317) are arranged on the outer periphery of both the left and right ends of the soil screening shaft (305).

6. The rice seedling nutrient soil collection and sieving integrated machine as described in claim 5, characterized in that: The soil screening shaft (305) is connected to a debris cleaning sleeve (315) that can rotate or slide along the outer periphery of the soil screening shaft (305). A debris cleaning shovel (308) is fixedly connected to the outer periphery of the debris cleaning sleeve (315). The end of the debris cleaning shovel (308) away from the debris cleaning sleeve (315) is slidably connected to the inner wall of the soil screening roller (304).

7. The rice seedling nutrient soil collection and sieving integrated machine as described in claim 6, characterized in that: The left side of the soil screening shaft (305) is connected to a left connecting sleeve (318) that is rotatably connected to the soil screening roller (304). Several cutting rods (317) are arranged around the outer periphery of the left connecting sleeve (318). The right end of the soil screening shaft (305) has a countersunk hole for mounting. A rotatable transmission screw (310) is connected inside the countersunk hole. A movable nut (311) is threaded onto the transmission screw (310). A movable block (314) is rotatably connected to the upper part. The limiting step of the movable nut (311) is attached to one side of the movable block (314) in the axial direction. A limiting plate (316) is sleeved on the transmission screw (310) and fixedly connected to the movable nut (311). The limiting plate (316) is attached to the other side of the movable block (314) in the axial direction. Several screen shafts (305) close to the left connecting sleeve (318) have several mounting holes arranged around their outer periphery. A sliding groove (305a) is provided. The outer periphery of the moving block (314) is connected to several limiting plates (313) corresponding to the sliding groove (305a). The limiting plates (313) can slide precisely along the corresponding sliding groove (305a). A circular rotating groove (315a) is opened at one end of the debris cleaning sleeve (315) relative to the left connecting sleeve (318). The debris cleaning sleeve (315) is rotatably connected to the limiting plate (315a) via the rotating groove (315a). On the outer periphery of the debris cleaning sleeve (315), a synchronous moving sleeve (312) sleeved on the soil screening shaft (305) is fixedly connected to one end of the debris cleaning sleeve (315) relative to the left connecting sleeve (318). The right end of the transmission screw (310) is rotatably connected to the crushing shell body (501a). A debris cleaning motor (309) is fixedly connected to the right side of the soil crushing shell body (501a). The debris cleaning motor (309) is connected to the transmission screw (310).

8. The rice seedling nutrient soil collection and sieving integrated machine as described in claim 7, characterized in that: A retaining ring (314a) is fixed on the movable block (314), the retaining ring (314a) always covers the sliding groove (305a), and the outer circumference of the retaining ring (314a) is attached to the inner ring of the soil screening shaft (305).

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