CN113039879A

CN113039879A - Weeding machine

Info

Publication number: CN113039879A
Application number: CN201911379675.0A
Authority: CN
Inventors: 胡济荣; 其他发明人请求不公开姓名
Original assignee: Zhejiang Xinglaihe Agricultural Equipment Co ltd
Current assignee: Zhejiang Xinglaihe Agricultural Equipment Co ltd
Priority date: 2019-12-27
Filing date: 2019-12-27
Publication date: 2021-06-29

Abstract

The invention relates to the technical field of agricultural equipment, in particular to a weeding machine. The weeding machine comprises a walking part, a weeding part, a connecting frame assembly and a fixing frame assembly, wherein a connecting steel frame is arranged at the rear end of the walking part, the connecting frame assembly is fixed on the connecting steel frame, and the fixing frame assembly is fixed at the front end of the weeding part; the connecting frame assembly comprises an upper connecting plate and hook plates on two sides, the fixing frame assembly comprises an upper connecting shaft and a lower connecting shaft, the upper connecting shaft is placed on the upper connecting plate, and the hook plates are hung on the lower connecting shaft; the weeding portion comprises a main beam, mounting supports and roller assemblies, wherein the main beam is fixed on the rear side of the fixing frame assembly, a plurality of groups of the mounting supports are fixed on the main beam, the mounting supports are vertically arranged, and the roller assemblies are fixed at the lower ends of the mounting supports. The weeding machine disclosed by the invention is high in weeding efficiency, can meet the production requirements of large-area planting farmers, and is high in economy and applicability.

Description

Weeding machine

Technical Field

The invention relates to the technical field of agricultural equipment, in particular to a weeding machine.

Background

The rice has a cultivation history of more than 7000 years in China, the rice is produced in the first year in the world, and 2 hundred million and more tons of rice are produced in each year. However, the environment of the rice field is greatly beneficial to the propagation and growth of weeds, and the domestic rice field has various weeds and higher growth density, thereby causing great threat to the safe production of rice and reducing the yield of the rice by 15-30%.

At present, domestic weeding machines mainly comprise small-sized hand-held cultivator, the cultivator can work only by hands of workers, the efficiency is very low, the seedling rolling phenomenon is easy to cause during turning, and the weeding requirements of farmers with large planting areas cannot be met, so most of the farmers select chemical herbicides to weed.

In a new era of advocating green ecology, the use of chemical herbicides is running counter to the environmental protection. In the using process, the soil and water sources can be polluted, and a large number of non-target organisms can be killed, so that natural enemies of pests and other beneficial animals die; moreover, chemical herbicides in plants can be transported through the food chain step by step and accumulate continuously, which poses potential threats to humans and animals. Chemical weeding is driven to move toward mechanical weeding for various reasons, and the weeding has obvious effects on protecting cultivation development, increasing crop yield and improving crop quality.

Disclosure of Invention

In order to solve the problems of environmental pollution and secondary pollution caused by chemical weeding, poor applicability of the existing weeding machine and low weeding efficiency, the invention aims to provide the weeding machine which has high weeding efficiency, can meet the production requirements of large-area planting farmers and has high economical efficiency and applicability.

In order to achieve the purpose, the invention adopts the following technical scheme:

the weeding machine comprises a walking part, a weeding part, a connecting frame assembly and a fixing frame assembly, wherein a connecting steel frame is arranged at the rear end of the walking part, the connecting frame assembly is fixed on the connecting steel frame, and the fixing frame assembly is fixed at the front end of the weeding part;

the connecting frame assembly comprises an upper connecting plate and hook plates on two sides, the fixing frame assembly comprises an upper connecting shaft and a lower connecting shaft, the upper connecting shaft is placed on the upper connecting plate, and the hook plates are hung on the lower connecting shaft;

the weeding portion comprises a main beam, mounting supports and roller assemblies, wherein the main beam is fixed on the rear side of the fixing frame assembly, a plurality of groups of the mounting supports are fixed on the main beam, the mounting supports are vertically arranged, and the roller assemblies are fixed at the lower ends of the mounting supports.

Furthermore, the connecting frame assembly further comprises side plates, a middle connecting shaft, a support, an adjusting pull rod welding piece, a hook and a pipe sleeve, the middle connecting shaft penetrates through the side plates on two sides, the hook plates are fixed at two ends of the middle connecting shaft, the support is fixed on the side plates and provided with limiting holes, the adjusting pull rod welding piece is provided with a limiting piece, the adjusting pull rod welding piece penetrates through the limiting holes, the tail end of the adjusting pull rod welding piece is movably connected with the hook plates, the pipe sleeve is fixed on the support, one end of the hook is fixed with an elastic cylindrical pin B and penetrates through the pipe sleeve, and one side of the pipe sleeve is provided with a positioning groove for accommodating the elastic cylindrical pin B.

Further, the mount bracket assembly with be equipped with balancing unit between the weeding portion, balancing unit includes the extension spring and goes up the link plate, link plate under the extension spring, extension spring adjusting screw, the link plate is fixed on the mount bracket assembly on the extension spring, extension spring adjusting screw wears to establish and fixes on the link plate on the extension spring, the link plate is fixed at weeding portion front end under the extension spring, two the extension spring symmetry sets up in weeder central line both sides, the both ends of extension spring respectively with extension spring adjusting screw with the extension spring is connected with link plate under the extension spring.

Further, the fixed frame subassembly with be equipped with stop device between the portion of weeding, stop device includes gag lever post and limiting plate, the gag lever post is fixed on the steelframe is connected to both sides, the limiting plate is established weeder central line both sides separately and is fixed weeding portion is last, limiting plate front side downwardly extending form with spacing portion of gag lever post matched with.

Further, the weeder uses the tire of walking portion as the gyro wheel, is located to be equipped with vice kickboard subassembly on the tire orbit of marcing, wheel components includes long wheel components, short wheel components and central wheel components, central wheel components fixes girder middle part rear side, the front side of central wheel components is equipped with central kickboard, central kickboard is fixed at mount subassembly downside, on the girder, the branch is listed as long wheel components's both sides connect gradually long wheel components, vice kickboard subassembly and short wheel components, long wheel components is equipped with a set of or adjacent multiunit.

Furthermore, the central roller assembly comprises a plurality of groups of long rollers arranged in the advancing direction, the long roller assembly comprises a plurality of groups of long rollers arranged in the advancing direction, the short roller assembly comprises a plurality of groups of short rollers arranged in the advancing direction, the long rollers and the short rollers are formed by a group of blades annularly arranged around the axes of the long rollers and the short rollers, the front parts of the blades are bent clockwise and provided with tips, the short rollers are uniformly distributed at intervals by single blades and short double blades, and the long rollers are uniformly distributed at intervals by long double blades and three blades.

Further, weeding portion still includes linking bridge, installation roof beam, link plate, weeding harrow, installation roof beam parallel arrangement is in the girder rear side, linking bridge connects girder and installation roof beam, and the multiunit the link plate is fixed on the installation roof beam, the vertical setting of link plate, the weeding harrow is fixed the link plate lower part, the weeding harrow with wheel components interval arranges.

Furthermore, the weeding harrow comprises a positioning frame and harrow teeth, wherein the positioning frame is fixed on the lower portion of the hanging plate, a plurality of arc-shaped harrow teeth are symmetrically arranged on two sides of the positioning frame, one end of each harrow tooth is fixed on the positioning frame, the other end of each harrow tooth is in arc-shaped horn mouth transition, and the harrow teeth on two sides are contacted with the end portions.

Further, the weeder also comprises a device for disassembling and assembling the roller grass system, which is used for fixedly connecting the mounting bracket with the main beam, and comprises

The pressing plate component A comprises a pressing plate A;

the pressing plate component B comprises a pressing plate B, a bottom plate and a cover plate, the pressing plate A and the pressing plate B are respectively provided with two sides of a main beam and clamp the main beam, the bottom plate and the cover plate are fixed on the back side of the pressing plate B and are surrounded with the pressing plate B to form a mounting groove matched with the mounting bracket for supplying the mounting bracket to penetrate through.

Furthermore, the weeder also comprises a grass raking system dismounting device for fixedly connecting the connecting support with the mounting beam, a connecting plate B is vertically arranged on the mounting beam, the beam hanging connecting seat assembly comprises a connecting seat, a bolt, a nut and a handle bolt assembly, the connecting seat is wholly square, rectangular grooves for the connecting plate B and the connecting support to penetrate are respectively formed in two adjacent side faces of the connecting seat, three pairs of nut bolts are respectively arranged on three adjacent side faces of the connecting seat, and the handle bolt assembly is positioned on one side face without forming the rectangular grooves.

By adopting the technical scheme, the invention has the beneficial effects that: 1) the weeding part is carried behind the traveling part of the high-speed transplanter, so that high-efficiency weeding operation can be performed; 2) weeding among rows is carried out through a rolling grass system arranged in the weeding part, and multi-row weeding can be simultaneously realized; 3) the rake system arranged through the weeding part can weed among plants and can weed multiple plants simultaneously, thus meeting the production requirement of large-area planting farmers, protecting the ecological environment and improving the economic benefit.

Drawings

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

FIGS. 2 and 3 are schematic views of a connector assembly of the present invention;

FIG. 4 is a schematic view of the use of the connector assembly of the present invention;

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

FIG. 6 is a schematic view of the connector assembly hanging on the fixing frame assembly according to the present invention;

FIG. 7 is a schematic view of a 7-row weeding and weeding system according to the invention;

FIG. 8 is a schematic view of a 9-row weeding system according to the present invention;

FIG. 9 is a schematic view of a 7-row weeding and raking system according to the present invention;

FIGS. 10 and 11 are schematic views of a short roller and a long roller according to the present invention;

FIG. 12 is a schematic view of a rake according to the present invention;

FIGS. 13 and 14 are schematic views of a balancing device and a limiting device according to the present invention;

FIGS. 15 and 16 are schematic views of the device for mounting and dismounting the roller grass system according to the present invention;

fig. 17, 18 and 19 are schematic views of the grass raking system dismounting device of the invention.

Fig. 20 is a schematic view of the entire structure of the weeding section.

Detailed Description

In order to make the technical solutions of the present invention more clear to those skilled in the art, the present invention will now be described in further detail with reference to the accompanying drawings.

Example 1

In the description of the present invention, it should be noted that the terms "front", "rear", "upper", "lower", "inner", "outer", "lateral", "vertical", "longitudinal", and the like indicate orientations or positional relationships corresponding to the traveling direction of the weeding machine, and are only for convenience of description and simplification of description, and thus, are not to be construed as limiting the present invention.

As shown in fig. 1, the weeding machine comprises a walking part 1, a weeding part, a connecting frame assembly 2 and a fixing frame assembly 3, wherein a connecting steel frame 11 is arranged at the rear end of the walking part 1, the connecting frame assembly 2 is fixed on the connecting steel frame 11, and the fixing frame assembly 3 is fixed at the front end of the weeding part;

as shown in fig. 2 and 3, the connecting frame assembly 2 includes an upper connecting plate 201 at the top and hook plates 202 at two sides, the fixing frame assembly 3 includes an upper connecting shaft 31 and a lower connecting shaft 32, a shaft groove for accommodating the upper connecting shaft 31 is formed in the middle of the upper connecting plate 201, the upper connecting shaft 31 is placed in the shaft groove, and the hook plates 202 are hung on the lower connecting shaft 32, so that the connection between the fixing frame assembly 3 and the connecting frame assembly 2 is realized, and the weeding portion is carried at the rear end of the walking portion 1 to perform weeding operation during the traveling process of the walking portion 1.

Link subassembly 2 still includes the curb plate, well connecting axle 204, and support 205, regulation pull rod weldment 206, hook 207, pipe box 209, two the vertical setting of curb plate and the corresponding a plurality of through-holes of having seted up, through down three running through of arranging in proper order from the last the connecting axle of through-hole and connecting plate between the curb plate connects two the curb plate, well connecting axle 204 is located curb plate middle part and the outer end that stretches out the both sides board overlap in proper order establish the gasket with couple board 202, couple board 202 is the hook form, two the one end of couple board 202 with well connecting axle 204 welding just can rotate around well connecting axle 204 together. Deviate from couple board 202 arc mouth direction sets up support 205, support 205 is L type and side and fixes on the curb plate, spacing hole has been seted up on the front side top of support 205, spacing hole is the type of falling protruding, it sets up and runs through to adjust pull rod weldment 206 slope spacing hole, it is equipped with two nut A210 to adjust the cover on the pull rod weldment 206, it lies in on the adjustment pull rod weldment 206 nut A210 downside close fit elasticity cylindric lock A211, and it has round pin axle 212 to lie in one side couple board 202 middle part welding, the bottom of adjusting pull rod weldment 206 cup joint in round pin axle 212 and joint have opening retaining ring A214 in order to prevent to adjust pull rod weldment 206 tail end and deviate from. The support 205 downside is located and adjusts pull rod weldment 206 upside and is equipped with the reference column, the cover is equipped with torsional spring 217 on the reference column, the torsion arm of torsional spring 217 supports and leans on adjust pull rod weldment 206 upside, gives it makes it arrange in adjusting pull rod weldment 206 motion process the spring restoring force of spacing hole below makes the process of action more smooth and easy. The pipe sleeve 209 is welded on the bracket 205, the hook 207 is U-shaped and comprises a handle end, the other end far away from the handle end is provided with an elastic cylindrical pin B215 and penetrates through the pipe sleeve 209, and the part of the hook 207 extending out of the pipe sleeve 209 is sleeved with a spring 208 and is clamped with an opening retainer B216 at the bottom end of the hook 207 to prevent the spring 208 from falling off. The end of the pipe sleeve 209 on the side of the elastic cylindrical pin B215 is provided with a positioning groove for accommodating the elastic cylindrical pin B215.

As shown in fig. 4 to 6, when the traveling unit 1 carries the weeding unit, the hook plate 202 is hooked on the lower link shaft 32 as follows: the method comprises the following steps: the adjusting pull rod weldment 206 is broken upwards and enters the upper part of the limiting hole; step two: the adjusting pull rod weldment 206 is pushed inwards until the nut A210 and the elastic cylindrical pin A211 sink into the limiting hole on the bracket 205, and the hook plates 202 on the two sides rotate clockwise around the middle connecting shaft 204 along with the inward pushing of the adjusting pull rod weldment 206 until the lower connecting shaft 32 on the fixed frame assembly 3 is clamped; step three: the adjusting pull rod weldment 206 is pressed downwards to enter the lower part of the limiting hole, and the adjusting pull rod weldment 206 is limited from sliding outwards along the axial direction due to the fact that the surface area of the nut A210 is larger than the area of the lower part of the limiting hole; step four: pulling the hook 207 outwards against the elastic force of the spring 208, so that the elastic cylindrical pin B215 is pulled out of the positioning groove on the pipe sleeve 209; step five: rotating the hook 207 counterclockwise by 180 degrees; step six: the hook 208 is put back into the positioning groove, at this time, the handle end of the hook 207 props against the adjusting pull rod weldment 206, so that the adjusting pull rod weldment 206 can only fall into the lower part of the limiting hole, the adjusting pull rod weldment 206 is limited to rotate along the pin shaft 212, and the hook plate 202 is reliably hung on the lower connecting shaft 32 of the fixed frame component 3.

The walking part is provided with a hydraulic system, the fixing frame component 3 is fixed on the connecting steel frame 11 in a clamping mode, and the connecting steel frame 11 drives the fixing frame component 3 to move up and down through the hydraulic system. 3 rear side lower parts of mount subassembly are equipped with the axle sleeve, the portion of weeding passes through connecting axle that is equipped with in the axle sleeve is connected with mount subassembly 3, because the portion of weeding is connected with mount subassembly 3 through the connecting axle, consequently the portion main part of weeding can 360 degrees pivoting, consequently, mount subassembly 3 with it can only rock at the small-angle within range to be used for control messenger's portion of weeding to weed between the portion of weeding with stop device.

As shown in fig. 13 and 14, the balancing device includes an upper hanging plate 41 of the tension spring, a lower hanging plate 42 of the tension spring, a tension spring 43 and a tension spring adjusting screw 44, the two ends of the top of the fixing frame component 3 are fixedly connected with the upper hanging plate 41 of the tension spring through bolts, the upper hanging plate 41 of the tension spring is provided with through holes, one end of the tension spring adjusting screw 44 penetrates through the through holes of the upper hanging plate 41 of the tension spring and is locked by two nuts B45, the other end of the tension spring adjusting screw is provided with through holes along the direction perpendicular to the axial direction, the lower hanging plate 42 of the tension spring is welded in the middle of the front end of the weeding part and is symmetrically provided with two through holes at the front end, the two ends of the tension spring 43 are bent into a hook shape, one end of the tension spring 43 extends.

Stop device includes gag lever post 51 and limiting plate 52, two the 11 rear ends of steelframe are connected in both sides are fixed to the gag lever post 51 symmetry, the weeder central line both sides are established and the welding is divided to the limiting plate 52 symmetry the portion front end that weeds, limiting plate 52 front side downwardly extending form with gag lever post 51 matched with spacing portion, the upper portion parcel of gag lever post 51 has rubber, limiting plate 52 adopts thicker thickness, all makes stop device can resist more violent the rocking when weeding the operation of portion, will weed the rocking angle restriction of portion within 9 degrees, this stop device long service life, durable.

As shown in fig. 20, the weeding section includes a rolling grass system for inter-row weeding and a rake grass system for inter-plant weeding.

As shown in fig. 7, the weeding machine is 7 rows, and the 2 nd and 6 th rows use the tire 12 of the walking part 1 as a roller, the grass rolling system comprises a main beam 61, a connecting frame, a mounting bracket 67, a central roller assembly 63, a long roller assembly 64, an auxiliary floating plate assembly 65 and a short roller assembly 66, the main beam 61 is fixed at the rear side of the fixing bracket assembly 3, the connecting frame is fixed at the back side of the middle part of the main beam 61 and surrounds the main beam 61 into a mouth shape, the mounting bracket 67 is vertically fixed at one side of the connecting frame far away from the main beam 61, the central roller assembly 63 is fixed at the lower end of the mounting bracket 67, a central floating plate 69 is arranged at the front side of the central roller assembly 63, and the central floating plate 69 is fixed at the lower side of the fixing bracket. A plurality of groups of mounting brackets 67 are vertically fixed on the main beam 61, are positioned at the lower ends of the mounting brackets 67, are arranged on two sides of the central floating plate 69, are sequentially fixed with a long roller assembly 64, an auxiliary floating plate assembly 65 and a short roller assembly 66, and the auxiliary floating plate assembly 65 is positioned on the traveling track of the tire 12.

As shown in fig. 10 and 11, the roller assemblies are divided into a long roller assembly 64, a short roller assembly 66 and a central roller assembly 63, the central roller assembly 63 includes multiple groups of long rollers arranged in the traveling direction, the long roller assembly 64 includes multiple groups of long rollers arranged in the traveling direction, the short roller assembly 66 includes multiple groups of short rollers arranged in the traveling direction, the long rollers and the short rollers are formed by a group of blades annularly arranged around the axis of the long rollers and the short rollers, the front portions of the blades are bent in the clockwise direction and provided with tips, the short rollers are uniformly spaced by a single blade 661 and a short double blade 662, and the long rollers are uniformly spaced by a long double blade 641 and a three blade 642.

As shown in fig. 9, the rake system comprises a connecting bracket 71, a mounting beam, a hanging plate 752, a rake 753, the mounting beams are arranged at the rear side of the main beam 61 in parallel, two connecting brackets 71 which are arranged perpendicular to the main beam are connected with the main beam 61 and the mounting beams, the hanging plate 752 is fixed on the mounting beam, the hanging plate 752 is vertically arranged, the weeding harrow 753 is fixed at the lower end of the hanging plate 752, the weeding harrow 753 is longitudinally positioned between the adjacent roller assemblies and is longitudinally provided with two groups, the mounting beams comprise a first mounting beam 731, a second mounting beam 741 and a third mounting beam 751 which are arranged in parallel and connected by the connecting bracket 71, the inter-plant rake rows of the weeding machine are 6 rows, the front and rear groups of rake 753 in the middle two rows are respectively fixed on the second mounting beam 741 and the third mounting beam 751, the other four rows of front and rear groups of weeding harrows 753 are respectively fixed on the first mounting beam 731 and the second mounting beam 741.

As shown in fig. 12, the weeding harrow comprises a positioning frame 7531 and harrow teeth 7532, wherein the positioning frame 7531 is fan-shaped and fixed at the lower part of a hanging plate 752, six harrow teeth 7532 are symmetrically arranged at two sides, the harrow teeth 7532 are arc-shaped, one end of each harrow tooth is connected with the positioning frame 7531, the other end of each harrow tooth is in arc transition through an arc bell mouth, and the harrow teeth 7532 at two sides touch at the end parts. The six rake teeth 7532 are made of 65Mn materials, and are subjected to heat treatment to achieve certain toughness and rigidity, so that the rake teeth have elastic structures and are not easy to damage, the tail ends of the rake teeth adopt arc transition of arc-shaped bellmouths, the bellmouth arc transition enables the bellmouth arc to contact rice seedlings in a point-to-point mode, and the opening elasticity is small, so that the seedling injury phenomenon is reduced, and the seedling injury rate is smaller than 5%; the arc shape can increase and contact the area of sliding between soil, through the upper and lower position of adjusting the weeding rake teeth to adjust the dynamics of effect between weeding rake teeth and soil, thereby improve weeding operating efficiency.

The intensity of weeding operation can be adjusted by adjusting the up-and-down position of the inner-measuring harrow teeth 7532, the inter-plant weeding parts cross two sides of a seedling row when the machine works, weeds, pulls or buries inter-plant weed as the machine moves forward for 6.7 kilometers per hour, and weeding efficiency is about 75%.

In another embodiment, as shown in fig. 12, a set of long roller assemblies 64 is further arranged between the auxiliary floating plate assembly 65 and the short roller assembly 66, and correspondingly, a set of weeding harrows 753 are added outside the grass raking system, and the weeding machine can be upgraded to a 9-row weeding machine.

In yet another embodiment, two sets of long roller assemblies 64 are further arranged between the auxiliary floating plate assembly 65 and the short roller assembly 66, and correspondingly, two sets of weeding harrows 753 are added outside the grass raking system, and the weeding machine can be upgraded to an 11-row weeding machine.

The invention also comprises a device for dismounting the grass rolling system, which is used for fixing the mounting bracket 67 connected with the roller assembly or the floating plate assembly on the main beam 61.

As shown in fig. 15 and 16, the dismounting device of the roller grass system comprises a pressure plate assembly a621 and a pressure plate assembly B622, wherein the pressure plate assembly a621 comprises a pressure plate a, two sides of the pressure plate a are bent to form concave parts matched with the outer surface of the main beam 61, and two sides of the pressure plate a are welded with threaded sleeves 6212; the clamp plate subassembly B622 includes clamp plate B6225, bottom plate 6221, apron 6222, clamp plate B6225 both sides bending type form with girder 61 surface assorted concave part, the both sides welding of clamp plate B6225 has screw thread cover 6212, the welding of apron 6222 one side is at clamp plate B6225 dorsal part, bottom plate 6221 is the bent plate that the cross-section is the L type, bottom plate 6221 one end with apron 6222 welded fastening, other end welded fastening are at clamp plate B6225's dorsal part, bottom plate 6221, apron 6222, clamp plate B6225 enclose close form with installing support 67 adaptation is used for supplying the rectangle mounting groove that installing support 67 wore to establish. The pressing plate component A621 and the pressing plate component B622 are respectively arranged on two sides of the main beam 61 and tightly hold the main beam 61 and are matched with the threaded sleeve 6212 through fasteners, and the dismounting device is built.

The top of the long roller assembly 64, the top of the short roller assembly 66, the top of the auxiliary floating plate assembly 65 and the top of the central roller assembly 63 are respectively provided with a mounting bracket 67, the mounting bracket 67 is longitudinally provided with 4 through holes B671, one end of the bottom plate 6221 and one end of the cover plate 6222 are symmetrically provided with through holes a6224, the mounting bracket 67 upwardly penetrates into the mounting groove to enable the fourth longitudinal through hole B671 to be aligned with the through hole a6224, and a pin shaft 624 penetrates through the through hole a6224 and the through hole B671 and then is locked by being clamped with an R-shaped split pin 625 at the tail end. The height of each roller assembly and the height of the sub-floating plate assembly 65 can be adjusted by selecting different through holes B671 arranged in the longitudinal direction on the mounting bracket 67. A welding nut 6223 is arranged on one side, away from the through hole A6224, of the bottom plate 6221, and the mounting bracket 67 is fastened through the cooperation of the bolt 623 and the welding nut 6223.

To disassemble the components, the bolts 623 are loosened by a wrench, the R-shaped cotter pin 625 is removed, and the pin 624 is removed, and the components are separated in sequence.

The invention also comprises a grass raking system dismounting device which comprises a hanging beam connecting seat assembly 721 and a pressure plate assembly C722, wherein the hanging beam connecting seat assembly 721 is used for fixedly connecting the connecting support 71 and the mounting beam, and the pressure plate assembly C722 is used for fixedly connecting the main beam 61 and the connecting support 71.

The clamp plate subassembly C722 includes clamp plate C7221, the dorsal side welding of clamp plate C7221 has connecting plate A7223, the through-hole has been seted up at connecting plate A7223 both ends, clamp plate subassembly C722 from the below hold tightly girder 61 and through the fastener with thread bush 6212's cooperation is fixed on girder 61, two sets of clamp plate subassembly C722 is fixed on the girder.

Two connecting supports 71 are distributed on the rear side of the main beam 61, the connecting supports 71 are located on the inner side of the pressing plate component C722, a plurality of through holes are formed in the connecting supports 71, the connecting supports 71 are aligned with the holes in the pressing plate component C722 and are fastened through bolts, and connection of the connecting supports 71 and the main beam 61 is achieved.

Hang beam connecting seat subassembly 721 includes connecting seat 7211, three nut 7212 bolts 7213 and handle bolt subassembly 7214 of group, connecting seat 7211 wholly is squarely, seted up respectively on the adjacent both sides face of connecting seat 7211 and run through the rectangular groove of connecting seat 7211, three pairs of nut 7212 bolts 7213 set up respectively in on the adjacent three side of connecting seat 7211, handle bolt subassembly 7214 is located and has not offered the side in rectangular groove.

The inner weeding harrow component comprises a first mounting beam 731, hanging plates 752 and weeding harrow 753, wherein the first mounting beam 731 is positioned at the outer sides of two mounting brackets 67 and is respectively fixedly provided with two hanging plates 752 in a hanging manner, the bottom end of each hanging plate 752 is fixed with the weeding harrow 753 through an easily-disassembled bolt 754, a connecting plate B76 is also vertically arranged on the first mounting beam 731 close to the mounting bracket 67, the lower side of the connecting plate B76 is inserted into one rectangular groove of a hanging beam connecting seat component 721, a handle bolt component 7214 is rotated, an inner bolt 7213 of the hanging beam connecting seat component 721 is screwed to the bottom and is fastened through a corresponding nut 7212, the mounting bracket 67 penetrates through the other rectangular groove of the hanging beam connecting seat component 721, at the moment, the position of the hanging beam connecting seat component on the mounting bracket 67 is adjusted, so that the first mounting beam 731 is parallel to the weeding part 61, and the position of the inner weeding harrow component is suitable, then the bolts 7213 on the remaining two sides of the hanging beam connecting seat assembly 721 are screwed to the bottom and fastened by corresponding nuts 7212, so that the orthogonal fixation of the first mounting beam 731 and the mounting bracket 67 is realized.

The middle weeding harrow component comprises a second mounting beam 741, hanging plates 752 and weeding harrow 753, the middle weeding harrow component and the inner weeding harrow component are arranged in the same way and are fixed in the same way, and only two groups of weeding harrow 753 are additionally arranged between the two mounting brackets 67.

The outer weeding harrow subassembly contains third installation roof beam 751, link plate 752, weeding harrow 753, outer weeding harrow subassembly sets up the same and fixed mode unanimity with interior weeding harrow subassembly, only includes two sets of weeding harrow 753 that set up between two installing support 67.

The rake system is disassembled in the following way: after the handle of the handle bolt assembly 7214 is rotated anticlockwise and the nuts 7212 and bolts 7213 on the inner side of the hanging beam connecting seat assembly 721 are loosened, the inner, middle and outer weeding harrow assemblies can be taken down respectively. After the nuts 7212 and bolts 7213 on the remaining two sides of the hanging beam connecting seat assembly 721 are loosened, the hanging beam connecting seat assembly 721 can be removed. The mounting bracket 67 can be removed by loosening the bolts 7213 that secure the mounting bracket 67.

The weeding principle of the invention is as follows: weeds are pressed into the silt by the advancing of the rollers, or the silt is driven to cover the weeds to weed when the rollers advance, the height of the roller system can be automatically adjusted by the central floating plate according to the silt, the auxiliary floating plate is used for assisting in adjustment, the rollers at the left end and the right end are narrower than the middle of the roller system, and the phenomenon of seedling rolling is reduced when the high-speed rice transplanter turns; the weeding harrow can drag weeds through the harrow teeth of the weeding harrow to loosen the root system of the weeds so as to achieve the purpose of weeding among plants.

The invention can weed in fields of 7 to 11 rows by carrying the weeding part behind the driving part of the high-speed transplanter, and the weeding machine can weed in rows and plants. Because the weeder is carried on the high-speed transplanter, the weeding efficiency is higher, and the weeding requirements of large-area planting farmers can be met, so that chemical weedicides are not needed to be used, green rice can be produced, and the local ecological environment can be protected.

The above description is only an embodiment of the present invention, and not intended to limit the scope of the present invention, and all equivalent changes made by using the contents of the present specification and the drawings, or applied directly or indirectly to the related technical fields, are included in the scope of the present invention.

Claims

1. Weeder, including walking portion (1), weeding portion, link assembly spare (2), mount subassembly (3), its characterized in that: a connecting steel frame (11) is arranged at the rear end of the walking part (1), the connecting frame assembly (2) is fixed on the connecting steel frame (11), and the fixing frame assembly (3) is fixed at the front end of the weeding part;

the connecting frame assembly (2) comprises an upper connecting plate (201) and hook plates (202) on two sides, the fixing frame assembly (3) comprises an upper connecting shaft (31) and a lower connecting shaft (32), the upper connecting shaft (31) is placed on the upper connecting plate (201), and the hook plates (202) are hung on the lower connecting shaft (32);

weeding portion includes girder (61), installing support (67), wheel components, girder (61) are fixed the mount subassembly (3) rear side, the multiunit installing support (67) are fixed on girder (61), the vertical setting of installing support (67), wheel components fixes at installing support (67) lower extreme.

2. A weeding machine as claimed in claim 1, wherein: the connecting frame assembly (2) further comprises side plates, a middle connecting shaft (204), a support (205), an adjusting pull rod welding piece (206), a hook (207) and a pipe sleeve (209), wherein the middle connecting shaft (204) penetrates through the side plates on two sides, the hook plates (202) are fixed at two ends of the middle connecting shaft (204), the support (205) is fixed on the side plates and provided with a limiting hole, the adjusting pull rod welding piece (206) is provided with a limiting piece, the adjusting pull rod welding piece (206) penetrates through the limiting hole, the tail end of the adjusting pull rod welding piece is movably connected with the hook plates (202), the pipe sleeve (209) is fixed on the support (205), one end of the hook (207) is fixed with an elastic cylindrical pin B (215) and penetrates through the pipe sleeve (209), and one side of the pipe sleeve (209) is provided with a positioning groove for accommodating the elastic cylindrical pin B (.

3. A weeding machine as claimed in claim 1, wherein: fix frame subassembly (3) with be equipped with balancing unit between the weeding portion, balancing unit includes that the extension spring goes up link plate (41), link plate (42) under the extension spring, extension spring (43), extension spring adjusting screw (44), link plate (41) are fixed on fix frame subassembly (3) on the extension spring, extension spring adjusting screw (44) wear to establish to be fixed on link plate (41) on the extension spring, link plate (42) are fixed at weeding portion front end, two under the extension spring (43) symmetry sets up in weeder central line both sides, the both ends of extension spring (43) respectively with extension spring adjusting screw (44) with link plate (42) are connected under the extension spring.

4. A weeding machine as claimed in claim 1, wherein: fixing frame subassembly (3) with be equipped with stop device between the portion of weeding, stop device includes gag lever post (51) and limiting plate (52), gag lever post (51) symmetry is fixed on both sides link steelframe (11), limiting plate (52) symmetry is divided and is established weeder central line both sides and welding and is in the portion front end of weeding, limiting plate (52) front side down extension form with gag lever post (51) matched with spacing portion.

5. A weeding machine as claimed in claim 1, wherein: the weeder uses tire (12) of walking portion (1) as the gyro wheel, is located and is equipped with vice kickboard subassembly (65) on tire (12) the orbit of marcing, the roller subassembly includes long roller subassembly (64), short roller subassembly (66) and central roller subassembly (63), central roller subassembly (63) are fixed girder (61) middle part rear side, the front side of central roller subassembly (63) is equipped with central kickboard (69), central kickboard (69) are fixed at fixed frame subassembly (3) downside, on girder (61), the branch is listed as the both sides of central roller subassembly (63) connect gradually long roller subassembly (64), vice kickboard subassembly (65) and short roller subassembly (66), long roller subassembly (64) are equipped with a set of or adjacent multiunit.

6. A weeding machine as claimed in claim 5, wherein: central authorities wheel components (63) contain the long gyro wheel of the multiunit that the advancing direction arranged, long wheel components (64) contain the long gyro wheel of the multiunit that the advancing direction arranged, short wheel components (66) contain the short gyro wheel of the multiunit that the advancing direction arranged, long gyro wheel and short gyro wheel constitute by a set of blade that encircles its axle center and establish, the blade is anterior along clockwise bending and be equipped with most advanced, short gyro wheel is by single vane (661) and short biplate (662) interval equipartition, long gyro wheel is by long biplate (641) and triplate (642) interval equipartition.

7. A weeding machine as claimed in claim 1, wherein: weeding portion still includes linking bridge (71), installation roof beam, link plate (752), weeding harrow (753), installation roof beam parallel arrangement is in girder (61) rear side, linking bridge (71) are connected girder (61) and installation roof beam, multiunit link plate (752) are fixed on the installation roof beam, link plate (752) vertical setting, weeding harrow (753) is fixed link plate (752) lower part, weeding harrow (753) with wheel components interval arrangement.

8. A weeding machine as claimed in claim 7, wherein: the weeding harrow (753) comprises a positioning frame (7531) and harrow teeth (7532), wherein the positioning frame (7531) is fixed to the lower portion of a hanging plate (752), a plurality of arc-shaped harrow teeth (7532) are symmetrically arranged on two sides of the positioning frame, one end of each harrow tooth (7532) is fixed to the positioning frame (7531), the other end of each harrow tooth adopts an arc-shaped horn mouth for transition, and the harrow teeth (7532) are in contact with the end portions.

9. A weeding machine as claimed in claim 7 or 8, wherein: still include grass raking system dismouting device for the fixed connection of linking bridge (71) and installation roof beam, vertically on the installation roof beam be equipped with connecting plate B (76), hang roof beam connecting seat subassembly (721) including connecting seat (7211), bolt (7213), nut (7212), handle bolt subassembly (7214), connecting seat (7211) wholly is squarely, offer the confession on the adjacent both sides face of connecting seat (7211) respectively the rectangular channel that connecting plate B (76) and linking bridge (71) were worn to establish, three pairs of nut (7212) bolt (7213) set up respectively in on the adjacent three side of connecting seat (7211), handle bolt subassembly (7214) are located and have not offered on the side of rectangular channel.

10. A weeding machine as claimed in claim 1, wherein: also comprises a grass rolling system dismounting device which is used for fixedly connecting the mounting bracket (67) and the main beam (61), and comprises

A platen assembly A (621), the platen assembly A (621) comprising a platen A;

pressure plate subassembly B (622), pressure plate subassembly B (622) includes pressure plate B (6225), bottom plate (6221) and apron (6222), pressure plate A and pressure plate B (6225) divide and establish girder (61) both sides and press from both sides tightly girder (61), bottom plate (6221) are fixed with apron (6222) the dorsal part of pressure plate B (6225) and with pressure plate B (6225) enclose close form with installing support (67) adaptation is in order to be used for the confession installing support (67) wears the mounting groove of establishing.