CN107950183B

CN107950183B - Rice harvester

Info

Publication number: CN107950183B
Application number: CN201711323458.0A
Authority: CN
Inventors: 刘志发
Original assignee: Individual
Current assignee: Individual
Priority date: 2017-12-13
Filing date: 2017-12-13
Publication date: 2020-07-31
Anticipated expiration: 2037-12-13
Also published as: CN107950183A

Abstract

The invention relates to a harvester, in particular to a rice harvester, which comprises a harvesting conveyor, a rack, a transmission device and two pushing and conveying devices, wherein the harvesting conveyor is fixedly connected to the rack, the transmission device is rotatably connected to the inside of the rack, the transmission device and the harvesting conveyor are in gear transmission, the two pushing and conveying devices are fixedly connected to the transmission device, and the two pushing and conveying devices are arranged inside the rack; the pushing and conveying device comprises two wheel discs and a plurality of scraping plates, each wheel disc comprises a wheel disc body, a plurality of sliding rods and a plurality of springs, a plurality of rectangular sliding grooves distributed along the radial direction of the wheel disc body are formed in the wheel disc body, and the sliding rods are respectively connected into the rectangular sliding grooves through threads; a rice harvester can discharge harvested rice at uniform intervals, has no residue after discharge, is favorable for spreading and airing, and can avoid rice grains from falling off.

Description

Rice harvester

Technical Field

The invention relates to a harvester, in particular to a rice harvester.

Background

For example, patent application No. CN201410117065.4 discloses a highland crack rice harvester, which comprises a rice harvester body, wherein the rice harvester body comprises a walking power system provided with a continuously variable transmission and a walking power machine, an operation power system provided with an operation power machine and an operation console, a chassis provided with a walking device, a driving platform arranged on the chassis, a header and a separating device respectively arranged at two ends of the chassis, a conveying device with two ends respectively connected with the header and the separating device, a grain tank arranged on the separating device, and a reel arranged on the header, and a hydraulic lifting platform is arranged between the walking device and the chassis. The rice is bent by the reel during harvesting, which causes the problem of rice grain falling.

Disclosure of Invention

The invention aims to provide a rice harvester, which can discharge harvested rice at intervals, so that the discharged rice has no residue and is beneficial to spreading and airing; can realize the transport of rice when the cutting to the process of reaping can not lead to the rice to empty, avoids the rice grain to drop.

The purpose of the invention is realized by the following technical scheme:

a rice harvester comprises a harvesting conveyor, a rack, two transmission devices and two pushing and conveying devices, wherein the harvesting conveyor is fixedly connected to the rack, the transmission devices are rotatably connected to the rack, the transmission devices and the harvesting conveyor are in gear transmission, the two pushing and conveying devices are fixedly connected to the transmission devices, and the two pushing and conveying devices are arranged inside the rack; bulldoze conveyor includes two rim plates and a plurality of scraper blade, the rim plate includes rim plate body, a plurality of slide bar and a plurality of spring, be provided with on the rim plate body along a plurality of rectangle spouts of radial distribution of rim plate body, a plurality of slide bars are respectively through threaded connection in a plurality of rectangle spouts, the spring cup joints on the slide bar, the equal welded connection slider in both ends of scraper blade, set up the slide opening on the slider, two rim plates set up relatively, the slider at scraper blade both ends is sliding connection respectively on the slide bar of two rim plates, the scraper blade is located the outer end of spring.

As a further optimization of the technical scheme, the rice harvester comprises a harvesting conveyor, wherein the harvesting conveyor comprises a shaft seat, a plurality of cutter head assemblies, two transmission wheel sets and two transmission chains, the cutter head assemblies are rotatably connected to the shaft seat, the two transmission wheel sets are rotatably connected to the right end of the shaft seat and oppositely arranged, the cutter head assemblies are distributed along an arc to form a harvesting conveying wheel set I and a harvesting conveying wheel set II, the harvesting conveying wheel set I and the harvesting conveying wheel set II are symmetrically arranged relative to the central line of the shaft seat, the distance between the harvesting conveying wheel set I and the harvesting conveying wheel set II is sequentially reduced from outside to inside, and the two transmission wheel sets are respectively connected with the harvesting conveying wheel set I and the harvesting conveying wheel set II through the transmission chains.

As a further optimization of the technical scheme, the rice harvester comprises a cutter head assembly, a chain wheel I, a circular blade and a conveying roller, wherein the chain wheel I, the circular blade and the conveying roller are fixedly connected to the cutter shaft from bottom to top in sequence, the cutter shaft is rotatably connected to a shaft seat, and the heights of the circular blades on the harvesting conveying wheel set I and the harvesting conveying wheel set II are reduced from outside to inside in sequence.

As a further optimization of the technical scheme, the rice harvester comprises a transmission wheel set, a chain wheel II, a boss and a conical gear I, wherein the chain wheel II, the boss and the conical gear I are fixedly connected to the transmission shaft from bottom to top in sequence, and the boss and the conical gear I are located inside a rack.

As a further optimization of the technical scheme, the transmission device of the rice harvester comprises a driving wheel shaft, two land wheels and two bevel gears II, wherein the two land wheels are respectively connected to two ends of the driving wheel shaft through bolts, the two land wheels are located at the outer ends of a rack, the middle end of the driving wheel shaft is fixedly connected with the two bevel gears II, and the two bevel gears II are respectively meshed with the two bevel gears I.

As a further optimization of the technical scheme, the rice harvester comprises a rack, wherein the rack comprises a partition plate, a box body, two traction connecting pieces and a hydraulic telescopic cylinder connecting piece, the right end of the lower end face of the box body is connected with the two traction connecting pieces through bolts, the upper end of the right end face of the box body is connected with the hydraulic telescopic cylinder connecting piece through bolts, the box body is provided with a discharge port and a feed port, the discharge port is arranged at the lower end of the right end face of the box body, the feed port is arranged at the middle end of the left end face of the box body, the partition plate is connected to the left end of the box body through bolts and is located in the middle of the feed port, and the.

As a further optimization of the technical scheme, the rice harvester is characterized in that the left end of the partition plate is provided with the guide tip part, the partition plate is provided with two arc-shaped plates, and the upper ends of the two arc-shaped plates incline towards the inner parts of the feed inlet I and the feed inlet II respectively.

As a further optimization of the technical scheme, the invention provides the rice harvester, and the number of teeth of the plurality of chain wheels I on the harvesting conveying wheel set I and the harvesting conveying wheel set II is sequentially reduced from outside to inside.

The rice harvester of the invention has the following beneficial effects:

the rice harvester is provided with the pushing and pressing conveying device, so that harvested rice can be uniformly discharged at intervals, no residue is left in the discharged rice, and the rice harvester is beneficial to tiling and airing; be provided with and reap the conveyer, can realize the transport of rice when the cutting to reap the process and can not lead to the rice to empty, can avoid the rice grain to drop.

Drawings

The invention is described in further detail below with reference to the accompanying drawings and specific embodiments.

FIG. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is a first schematic view of the harvesting conveyor of the present invention;

FIG. 3 is a schematic view of a shaft seat structure of the present invention;

FIG. 4 is a second schematic view of the harvesting conveyor configuration of the present invention;

FIG. 5 is a schematic view of the cutterhead assembly of the present invention;

FIG. 6 is a schematic structural view of a drive wheel assembly of the present invention;

FIG. 7 is a schematic view of the frame structure of the present invention;

FIG. 8 is a schematic view of the frame structure of the present invention;

FIG. 9 is a schematic view of the transmission of the present invention;

FIG. 10 is a schematic view of the transmission and push conveyor configuration of the present invention;

FIG. 11 is a schematic view of the push conveyor of the present invention;

FIG. 12 is a schematic illustration of the wheel disc construction of the present invention;

FIG. 13 is a schematic view of the squeegee configuration of the invention.

In the figure: a harvesting conveyor 1; a shaft seat 1-1; a cutter head assembly 1-2; 1-2-1 of a cutter shaft; the chain wheel I1-2-2; 1-2-3 of a circular blade; conveying rollers 1-2-4; a transmission wheel set 1-3; a transmission shaft 1-3-1; chain wheels II 1-3-2; 1-3-3 of a boss; 1-3-4 parts of a bevel gear; 1-4 of a transmission chain; a frame 2; a partition plate 2-1; a guiding tip part 2-1-1; 2-1-2 of an arc plate; a box body 2-2; a discharge port 2-2-1; a feed inlet 2-2-2; 2-3 of a traction connecting piece; 2-4 parts of a hydraulic telescopic cylinder connecting piece; a transmission device 3; a driving wheel shaft 3-1; 3-2 of land wheel; a bevel gear II 3-3; a pushing and conveying device 4; 4-1 of a wheel disc; a wheel disc body 4-1-1; a slide bar 4-1-2; 4-1-3 of a spring; a scraper 4-2.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

The first embodiment is as follows:

the embodiment is described below with reference to fig. 1 to 13, and a rice harvester includes a harvesting conveyor 1, a frame 2, a transmission device 3 and a pushing and conveying device 4, wherein the harvesting conveyor 1 is fixedly connected to the frame 2, the transmission device 3 is rotatably connected to the frame 2, the transmission device 3 and the harvesting conveyor 1 are in gear transmission, two pushing and conveying devices 4 are provided, two pushing and conveying devices 4 are fixedly connected to the transmission device 3, and two pushing and conveying devices 4 are both arranged inside the frame 2;

the pushing and conveying device 4 comprises two wheel discs 4-1 and a plurality of scraping plates 4-2, the wheel discs 4-1 comprise wheel disc bodies 4-1-1, a plurality of sliding rods 4-1-2 and a plurality of springs 4-1-3, a plurality of rectangular sliding chutes distributed along the radial direction of the wheel disc bodies 4-1-1 are arranged on the wheel disc bodies 4-1-1, the plurality of sliding rods 4-1-2 are respectively connected in the plurality of rectangular sliding chutes through threads, the springs 4-1-3 are sleeved on the sliding rods 4-1-2, sliding blocks are welded and connected at two ends of the scraping plates 4-2, sliding holes are arranged on the sliding blocks, the two wheel discs 4-1 are oppositely arranged, the sliding blocks at two ends of the scraping plates 4-2 are respectively connected on the sliding rods 4-1-2 of the two wheel discs 4-1 in a sliding manner, the scraper 4-2 is positioned at the outer end of the spring 4-1-3; when in use, the frame 2 is arranged at the front end of a motor vehicle, and the invention moves leftwards under the pushing of the motor vehicle; in the moving process, the transmission device 3 drives the harvesting conveyor 1 to harvest and convey the harvested rice to the inside of the rack 2; meanwhile, the transmission device 3 drives the pushing and conveying device 4 to rotate, rice collected in the rack 2 is extruded and discharged under the action of the pushing and conveying device 4, the right end of the rack 2 can be connected with a container connected to a motor vehicle while being connected with the motor vehicle, and the harvested rice is pushed into the container through the pushing and conveying device 4; when the right end of the frame 2 is not connected with a container, harvested rice can be flatly laid in a field at certain uniform intervals under the action of the pushing and conveying device 4 and used for airing incompletely dried rice seedlings, intermittent discharge is realized through the plurality of scrapers 4-2, and airing is facilitated and harvesting after airing is facilitated; the scrapers 4-2 are attached to the bottom end face of the inside of the rack 2 under the action of the springs 4-1-3, so that rice in the inside of the rack 2 can be pushed, and rice residue is avoided.

The second embodiment is as follows:

the following describes the present embodiment with reference to fig. 1 to 13, and the present embodiment further describes the first embodiment, the harvesting conveyor 1 includes a shaft seat 1-1, a plurality of cutter assemblies 1-2, two transmission wheel sets 1-3 and two transmission chains 1-4, the cutter assemblies 1-2 are rotatably connected to the shaft seat 1-1, the two transmission wheel sets 1-3 are rotatably connected to the right end of the shaft seat 1-1, the two transmission wheel sets 1-3 are oppositely arranged, the cutter assemblies 1-2 are distributed along an arc to form a harvesting conveying wheel set i and a harvesting conveying wheel set ii, the harvesting conveying wheel set i and the harvesting conveying wheel set ii are symmetrically arranged relative to the center line of the shaft seat 1-1, the distance between the harvesting conveying wheel set i and the harvesting conveying wheel set ii is sequentially reduced from outside to inside, the two transmission wheel sets 1-3 are respectively connected with a harvesting conveying wheel set I and a harvesting conveying wheel set II through transmission chains 1-4; the distance between the harvesting conveying wheel set I and the harvesting conveying wheel set II is sequentially reduced from outside to inside, so that the harvesting conveyor 1 harvests rice when moving from right to left, the two transmission wheel sets 1-3 drive the harvesting conveying wheel set I and the harvesting conveying wheel set II through the transmission chains 1-4 respectively, and the plurality of cutter head assemblies 1-2 can cut off the lower part of the rice and convey the rice to the rack 2 when rotating.

The third concrete implementation mode:

the second embodiment is further described with reference to fig. 1-13, wherein the cutter head assembly 1-2 includes a cutter shaft 1-2-1, a chain wheel i 1-2-2, a circular blade 1-2-3 and a conveying roller 1-2-4, the chain wheel i 1-2-2, the circular blade 1-2-3 and the conveying roller 1-2-4 are fixedly connected to the cutter shaft 1-2-1 from bottom to top, the cutter shaft 1-2-1 is rotatably connected to the shaft seat 1-1, the heights of the circular blades 1-2-3 of the harvesting conveying wheel set i and the harvesting conveying wheel set ii are sequentially reduced from outside to inside, so that the rice cut by the circular blades 1-2-3 at the outer end is not broken by the circular blades 1-2 during the inward conveying process 3 cutting off again and preventing the rice from falling off in the conveying process; the circular blades 1-2-3 can cut rice and support the cut rice, and compared with a traditional rice harvester, the rice harvester does not cause the rice to topple over during harvesting, and can avoid the falling of mature rice grains; the conveying roller 1-2-4 is contacted with the rice, and the conveying roller 1-2-4 conveys the rice to the right end through rotation.

The fourth concrete implementation mode:

the embodiment is described below with reference to fig. 1 to 13, and the embodiment will be further described, where the transmission wheel set 1-3 includes a transmission shaft 1-3-1, a sprocket ii 1-3-2, a boss 1-3-3 and a conical gear i 1-3-4, the sprocket ii 1-3-2, the boss 1-3-3 and the conical gear i 1-3-4 are fixedly connected to the transmission shaft 1-3-1 from bottom to top, the boss 1-3-3 and the conical gear i 1-3-4 are located inside the frame 2, the boss 1-3-3 is used to axially position the transmission shaft 1-3-1, the rotation directions of the two transmission shafts 1-3-1 are opposite, the rice on the two sides of the partition plate 2-1 can be conveyed to the right end under the action of the cutter head assembly 1-2.

The fifth concrete implementation mode:

this embodiment mode will be described below with reference to fig. 1 to 13, and this embodiment mode will further describe a fourth embodiment mode, the transmission device 3 comprises a driving wheel shaft 3-1, two land wheels 3-2 and two bevel gears II 3-3, the two land wheels 3-2 are respectively connected with the two ends of the driving wheel shaft 3-1 through bolts, the two land wheels 3-2 are positioned at the outer end of the frame 2, the middle end of the driving wheel shaft 3-1 is fixedly connected with two bevel gears II 3-3, the two conical gears II 3-3 are respectively meshed with the two conical gears I1-3-4, the two land wheels 3-2 rotate in contact with the ground, and the two land wheels 3-2 drive the two land wheels 3-2 and the two bevel gears II 3-3 drive the transmission wheel set 1-3 to move.

The sixth specific implementation mode:

the embodiment is described below with reference to fig. 1-13, and the embodiment further describes the first embodiment, the frame 2 includes a partition plate 2-1, a box 2-2, a traction connector 2-3 and a hydraulic telescopic cylinder connector 2-4, the right end of the lower end face of the box 2-2 is connected with two traction connectors 2-3 through bolts, the upper end of the right end face of the box 2-2 is connected with the hydraulic telescopic cylinder connector 2-4 through bolts, the box 2-2 is provided with a discharge port 2-2-1 and a feed port 2-2-2, the discharge port 2-2-1 is arranged at the lower end of the right end face of the box 2-2, the feed port 2-2-2 is arranged at the middle end of the left end face of the box 2-2, the rice harvester is characterized in that the partition plate 2-1 is connected to the left end of the box body 2-2 through a bolt, the partition plate 2-1 is located in the middle of the feed port 2-2-2, the partition plate 2-1 divides the feed port 2-2 into a feed port I and a feed port II, two ridges of rice can be harvested at the same time, the harvested rice enters the box body 2-2 through the feed port I and the feed port II, and the partition plate 2-1 and the conveying roller 1-2-4 jointly extrude the cut rice, so that the rice is conveyed to the right end; the traction connecting piece 2-3 is hinged on a motor vehicle through a pin shaft, the hydraulic telescopic cylinder connecting piece 2-4 is hinged and fixedly connected with a hydraulic cylinder arranged on the motor vehicle, the lifting of the harvester can be controlled through the stretching of the hydraulic cylinder, the inclination angle of the harvesting conveyor 1 can be controlled, and the harvesting height can be adjusted.

The seventh embodiment:

the embodiment is described below with reference to fig. 1 to 13, and the sixth embodiment is further described in the present embodiment, wherein a guiding tip portion 2-1-1 is arranged at the left end of the partition plate 2-1, the partition plate 2-1 is provided with two arc-shaped plates 2-1-2, and the upper ends of the two arc-shaped plates 2-1-2 are respectively inclined towards the interior of the feed inlet i and the interior of the feed inlet ii; under the action of the two arc-shaped plates 2-1-2, rice entering the box body 2-2 can be respectively poured towards two ends at the feed inlet I and the feed inlet II, so that the rice can be conveniently discharged, and meanwhile, the rice is prevented from being wound and pushed by the conveying device 4.

The specific implementation mode is eight:

the third embodiment is further described with reference to fig. 1-13, in which the number of teeth of the plurality of sprockets i 1-2-2 on the harvesting conveying wheel set i and the harvesting conveying wheel set ii is sequentially decreased from outside to inside, so that the rotation speeds of the outside-to-inside circular blades 1-2-3 and the conveying rollers 1-2-4 are sequentially increased, rice is prevented from falling off between two adjacent conveying rollers 1-2-4, rice rotating with the outside conveying rollers 1-2-4 is transferred to the right along with the inside conveying rollers 1-2-4 when contacting with the inside conveying rollers 1-2-4, and the rotation speed of the inside conveying rollers 1-2-4 is fast, which is beneficial to rice conveying; and the baffle can be additionally arranged to block the space between the two conveying rollers 1-2-4, so that the rice can be prevented from falling off.

The invention relates to a rice harvester, which has the working principle that: when in use, the frame 2 is arranged at the front end of a motor vehicle, and the invention moves leftwards under the pushing of the motor vehicle; in the moving process, the transmission device 3 drives the harvesting conveyor 1 to harvest and convey the harvested rice to the inside of the rack 2; meanwhile, the transmission device 3 drives the pushing and conveying device 4 to rotate, rice collected in the rack 2 is extruded and discharged under the action of the pushing and conveying device 4, the right end of the rack 2 can be connected with a container connected to a motor vehicle while being connected with the motor vehicle, and the harvested rice is pushed into the container through the pushing and conveying device 4; when the right end of the frame 2 is not connected with a container, harvested rice can be flatly laid in a field at certain uniform intervals under the action of the pushing and conveying device 4 and used for airing incompletely dried rice seedlings, intermittent discharge is realized through the plurality of scrapers 4-2, and airing is facilitated and harvesting after airing is facilitated; the scrapers 4-2 are attached to the bottom end face of the inside of the rack 2 under the action of the springs 4-1-3, so that rice in the inside of the rack 2 can be pushed, and rice residues are avoided;

because the distance between the harvesting conveying wheel set I and the harvesting conveying wheel set II is sequentially reduced from outside to inside, the harvesting conveyor 1 harvests rice when moving from right to left, the two transmission wheel sets 1-3 respectively drive the harvesting conveying wheel set I and the harvesting conveying wheel set II through the transmission chains 1-4, and the plurality of cutter head assemblies 1-2 can cut off the lower part of the rice and convey the rice into the rack 2 when rotating;

the heights of the circular blades 1-2-3 on the harvesting conveying wheel set I and the harvesting conveying wheel set II are sequentially reduced from outside to inside, so that the rice cut by the outer end circular blade 1-2-3 cannot be cut again by the inner side circular blade 1-2-3 in the process of conveying the rice to the inside, and the rice cannot fall off in the process of conveying the rice; the circular blades 1-2-3 can cut rice and have a supporting effect on the cut rice, and compared with a traditional rice harvester, the rice harvester can not cause the rice to topple over during harvesting, and can avoid the falling of mature rice grains; the conveying roller 1-2-4 is contacted with the rice, and the conveying roller 1-2-4 conveys the rice to the right end through rotation.

It is to be understood that the above description is not intended to limit the present invention, and the present invention is not limited to the above examples, and that various changes, modifications, additions and substitutions which are within the spirit and scope of the present invention and which may be made by those skilled in the art are also within the scope of the present invention.

Claims

1. A rice harvester comprising a harvesting conveyor (1), a frame (2), a transmission (3) and a push conveyor (4), characterized in that: the harvesting conveyor (1) is fixedly connected to the rack (2), the transmission device (3) is rotatably connected to the rack (2), the transmission device (3) and the harvesting conveyor (1) are in gear transmission, two pushing and conveying devices (4) are arranged, the two pushing and conveying devices (4) are fixedly connected to the transmission device (3), and the two pushing and conveying devices (4) are arranged inside the rack (2);

the pushing and conveying device (4) comprises two wheel discs (4-1) and a plurality of scraping plates (4-2), the wheel discs (4-1) comprise wheel disc bodies (4-1-1), a plurality of sliding rods (4-1-2) and a plurality of springs (4-1-3), a plurality of rectangular sliding grooves distributed along the wheel disc bodies (4-1-1) in the radial direction are arranged on the wheel disc bodies (4-1-1), the sliding rods (4-1-2) are respectively connected in the rectangular sliding grooves through threads, the springs (4-1-3) are sleeved on the sliding rods (4-1-2), sliding blocks are welded and connected to the two ends of the scraping plates (4-2), sliding holes are formed in the sliding blocks, and the two wheel discs (4-1) are arranged oppositely, the sliding blocks at the two ends of the scraper (4-2) are respectively connected to the sliding rods (4-1-2) of the two wheel discs (4-1) in a sliding manner, and the scraper (4-2) is located at the outer end of the spring (4-1-3).

2. A rice harvester according to claim 1, wherein: reap conveyer (1) including axle bed (1-1), a plurality of cutter head assembly (1-2), two transmission wheelset (1-3) and two driving chain (1-4), a plurality of cutter head assembly (1-2) rotate to be connected on axle bed (1-1), two transmission wheelset (1-3) rotate to be connected at the right-hand member of axle bed (1-1), two transmission wheelset (1-3) set up relatively, a plurality of cutter head assembly (1-2) are along arc distribution constitution reap transport wheelset I and reap transport wheelset II, reap transport wheelset I and reap the central line symmetry setting of transport wheelset II for axle bed (1-1), the distance between reaping transport wheelset I and the reaping transport wheelset II reduces from the extroversion-in proper order, two transmission wheelset (1-3) are connected through driving chain (1-4) respectively and are reaped transport wheelset I and reap transport wheelset II And a conveying wheel set II.

3. A rice harvester according to claim 2, wherein: cutter head assembly (1-2) includes arbor (1-2-1), sprocket I (1-2-2), circular blade (1-2-3) and conveying roller (1-2-4) from the bottom up fixed connection in proper order on arbor (1-2-1), arbor (1-2-1) rotate to be connected on axle bed (1-1), the height of reaping conveying wheelset I and reaping a plurality of circular blade (1-2-3) on the conveying wheelset II reduces from the outside in proper order.

4. A rice harvester according to claim 2, wherein: the transmission wheel set (1-3) comprises a transmission shaft (1-3-1), a chain wheel II (1-3-2), a boss (1-3-3) and a conical gear I (1-3-4), the chain wheel II (1-3-2), the boss (1-3-3) and the conical gear I (1-3-4) are fixedly connected to the transmission shaft (1-3-1) from bottom to top in sequence, and the boss (1-3-3) and the conical gear I (1-3-4) are located inside the rack (2).

5. A rice harvester according to claim 4, wherein: the transmission device (3) comprises a driving wheel shaft (3-1), two land wheels (3-2) and two bevel gears II (3-3), the two land wheels (3-2) are respectively connected to two ends of the driving wheel shaft (3-1) through bolts, the two land wheels (3-2) are located at the outer ends of the rack (2), the middle end of the driving wheel shaft (3-1) is fixedly connected with the two bevel gears II (3-3), and the two bevel gears II (3-3) are respectively meshed with the two bevel gears I (1-3-4).

6. A rice harvester according to claim 1, wherein: the machine frame (2) comprises a partition plate (2-1), a box body (2-2), two traction connecting pieces (2-3) and a hydraulic telescopic cylinder connecting piece (2-4), the right end of the lower end face of the box body (2-2) is connected with the two traction connecting pieces (2-3) through bolts, the upper end of the right end face of the box body (2-2) is connected with the hydraulic telescopic cylinder connecting piece (2-4) through bolts, the box body (2-2) is provided with a discharge port (2-2-1) and a feed port (2-2-2), the discharge port (2-2-1) is arranged at the lower end of the right end face of the box body (2-2), the feed port (2-2-2) is arranged at the middle end of the left end face of the box body (2-2), the partition plate (2-1) is connected at the left end of the box body (2, the baffle (2-1) is positioned in the middle of the feed inlet (2-2-2), and the baffle (2-1) divides the feed inlet (2-2-2) into a feed inlet I and a feed inlet II.

7. A rice harvester according to claim 3, wherein: and a plurality of chain wheels I (1-2-2) on the harvesting conveying wheel set I and the harvesting conveying wheel set II are sequentially reduced in tooth number from outside to inside.