CN111788927A

CN111788927A - Agricultural farmland weeder

Info

Publication number: CN111788927A
Application number: CN202010690978.0A
Authority: CN
Inventors: 谢翠华; 邹董董; 郑冬松; 朱丽; 曹莉
Original assignee: Wenzhou University Oujiang College
Current assignee: Dragon Totem Technology Hefei Co ltd
Priority date: 2020-07-17
Filing date: 2020-07-17
Publication date: 2020-10-20
Anticipated expiration: 2040-07-17
Also published as: CN111788927B

Abstract

The invention discloses an agricultural farmland weeding machine, which belongs to the technical field of agricultural machinery and comprises a rack, a weeding assembly and a shovel assembly, wherein the weeding assembly comprises a motor, a transmission shaft and weeding blades; the shovel soil subassembly includes sleeve, blade disc, blade and transmission the outside of blade disc is provided with a plurality of the blade, the cutting edge of blade is parallel with the generating line of blade disc, the bottom place height of blade is less than weeding blade place height. According to the device, the soil shoveling assembly is arranged on the outer side of the weeding blade, so that soil shoveling can be performed in advance before weeding, and the leveling of the land during weeding is ensured, so that the weeding blade is well protected, and the weeding efficiency can be improved.

Description

Agricultural farmland weeder

Technical Field

The invention belongs to the technical field of agricultural machinery, and particularly relates to an agricultural farmland weeding machine.

Background

A weeder is also called a lawnmower, a lawn trimmer and the like, and is a mechanical tool for trimming lawns, vegetation and the like. The device consists of a cutter head, an engine, a traveling wheel, a traveling mechanism, a blade, a handrail, a controller and the like. The output speed of the blade is greatly increased by utilizing the high-speed rotation of the engine, the operation time of weeders is saved, and a large amount of manpower resources are reduced.

Stones in the farmland are few, but the farmland needs to be cultivated for loosening, so that the land in the farmland is mostly uneven, and when a conventional weeding machine is adopted for weeding, the blade is easily contacted with the convex soil, so that the blade is damaged, and even the situation that the blade is clamped possibly can happen to further cause the damage of an engine.

Disclosure of Invention

In view of the above, the present invention provides an agricultural field weeding machine, in which a shoveling assembly is disposed outside a weeding blade, so that shoveling can be performed in advance before weeding, leveling of the land during weeding can be ensured, the weeding blade can be well protected, and weeding efficiency can be improved.

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

the invention relates to an agricultural farmland weeding machine, which comprises a rack, a weeding assembly and a soil shoveling assembly, wherein the weeding assembly comprises a motor, a transmission shaft and weeding blades, the motor is fixed on the rack, the transmission shaft is in transmission connection with the motor, and the weeding blades are connected to the tail end of the transmission shaft; the shovel soil subassembly includes sleeve, blade disc, blade and transmission, the sleeve cover establish the outside of transmission shaft and with frame fixed connection, the inside cavity of blade disc is the frustum type, the blade disc encircle in the outside of weeding blade and the center of blade disc with sleeve normal running fit, the blade disc pass through transmission with transmission synchronous drive connects, the outside of blade disc is provided with a plurality of the blade, the cutting edge of blade is parallel with the generating line of blade disc, the bottom position height of blade is less than the weeding blade position height.

Further, the upper end of blade disc has set firmly the roof, the centre bore has been seted up at the center of roof, the blade disc passes through centre bore and sleeve normal running fit, the fixed limiting plate that is used for going up the roof spacing that is provided with on the sleeve.

Further, transmission includes first gear, second gear and pivot, the inboard of blade disc is provided with the ring gear on the surface, first gear is connected with the transmission shaft transmission, the second gear simultaneously with first gear and ring gear meshing, the second gear through the pivot with limiting plate transmission connects, the blade disc passes through the second gear drives the rotation.

Further, the blade with the blade disc can be dismantled and be connected, the outside of blade disc has set firmly and is used for the mounting panel of blade location installation, offer on the mounting panel and be used for connecting the installation department of blade.

Furthermore, two blades are a set of, and two blades are separated by and are arranged and all set up along the circumference of blade disc, separate by between two blades and form the ascending passageway that is used for earth to pass through.

Further, the upper end of blade is provided with an annular channel, set up an opening that is used for discharging earth on the annular channel, the upper end of passageway that rises with the annular channel intercommunication.

Furthermore, the length of the blade extending out of the bottom of the cutter head is one third of that of the blade.

Further, the rack is also provided with a protection device, the protection device comprises an annular touch panel, an inner support, an outer support, a return spring and a switch, the inner side of the annular touch panel is fixedly connected to the inner support, the inner support is slidably arranged in the outer support, the outer support is fixedly connected with the rack, the return spring is arranged between the inner support and the outer support, one end of the return spring is fixedly connected with the inner support, the other end of the return spring is in contact with the switch, the switch controls the opening and closing of the motor, the annular touch panel is touched to transmit force to the inner support, the inner support compresses the spring and triggers the switch, and the motor is immediately closed under the action of the switch.

The invention has the beneficial effects that:

the agricultural farmland weeding machine comprises a rack, a weeding assembly and a soil shoveling assembly, wherein a cutter disc of the soil shoveling assembly surrounds the outer side of a weeding blade, the center of the cutter disc is in running fit with a sleeve, and the soil shoveling assembly is arranged on the outer side of the weeding blade, so that soil shoveling can be performed in advance before weeding, and the smoothness of the soil during the next weeding is ensured, so that the weeding blade is well protected, and the weeding efficiency can be improved.

According to the invention, the transmission device is arranged, the cutter disc is in synchronous transmission connection with the transmission shaft through the transmission device, so that the soil shoveling assembly and the weeding assembly can run synchronously, the control complexity is reduced, the rotation speed of the cutter disc is less than that of the blades through the transmission device, the moment of the blades during soil shoveling is ensured, the soil shoveling force is increased, most of rugged terrains can be coped with, after soil shoveling is finished, the rotation speed state of the motor is not required to be adjusted, the shearing speed of the weeding blades can be simultaneously ensured, the weeding efficiency is improved, the two components are mutually matched and do not influence each other, and the integral working efficiency is improved.

Additional advantages, objects, and features of the invention will be set forth in the description which follows and in part will become apparent to those having ordinary skill in the art upon examination of the following or may be learned from practice of the invention. The objectives and other advantages of the invention may be realized and attained by the means of the instrumentalities and combinations particularly pointed out hereinafter.

Drawings

In order to make the object, technical scheme and beneficial effect of the invention more clear, the invention provides the following drawings for explanation:

FIG. 1 is a first schematic structural diagram of the apparatus of the present invention;

FIG. 2 is a second schematic structural view of the apparatus of the present invention;

FIG. 3 is a front view of the apparatus of the present invention;

FIG. 4 is a bottom view of the apparatus of the present invention;

FIG. 5 is a schematic structural view of the transmission of the present invention;

FIG. 6 is a schematic view of the installation of the annular touch plate of the present invention;

fig. 7 is a schematic diagram of the transmission of the present invention.

The drawings are numbered as follows: the weeding machine comprises a frame 1, a motor 2, a transmission shaft 3, weeding blades 4, a sleeve 5, a cutter head 6, blades 7, an upper top plate 8, a limiting plate 9, a first gear 10, a second gear 11, a rotating shaft 12, an inner gear ring 13, a mounting plate 14, a lifting channel 15, an annular channel 16, an opening 17, an annular contact plate 18, an inner support 19, an outer support 20, a spring 21 and a switch 22.

Detailed Description

The embodiments of the present invention are described below with reference to specific embodiments, and other advantages and effects of the present invention will be easily understood by those skilled in the art from the description of the present specification. The invention is capable of other and different embodiments and of being practiced or of being carried out in various ways, and its several details are capable of modification in various respects, all without departing from the spirit and scope of the present invention. It should be noted that the drawings provided in the following embodiments are only for illustrating the basic idea of the present invention in a schematic way, and the features in the following embodiments and examples may be combined with each other without conflict.

Wherein the showings are for the purpose of illustrating the invention only and not for the purpose of limiting the same, and in which there is shown by way of illustration only and not in the drawings in which there is no intention to limit the invention thereto; to better illustrate the embodiments of the present invention, some parts of the drawings may be omitted, enlarged or reduced, and do not represent the size of an actual product; it will be understood by those skilled in the art that certain well-known structures in the drawings and descriptions thereof may be omitted.

The same or similar reference numerals in the drawings of the embodiments of the present invention correspond to the same or similar components; in the description of the present invention, it should be understood that if there is an orientation or positional relationship indicated by terms such as "upper", "lower", "left", "right", "front", "rear", etc., based on the orientation or positional relationship shown in the drawings, it is only for convenience of description and simplification of description, but it is not an indication or suggestion that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and therefore, the terms describing the positional relationship in the drawings are only used for illustrative purposes, and are not to be construed as limiting the present invention, and the specific meaning of the terms may be understood by those skilled in the art according to specific situations.

As shown in fig. 1 to 7, the agricultural farmland weeding machine comprises a frame 1, a weeding assembly and a shovel assembly, wherein the weeding assembly comprises a motor 2, a transmission shaft 3 and weeding blades 4, the motor 2 is fixed on the frame 1, the transmission shaft 3 is in transmission connection with the motor 2, and the weeding blades 4 are connected to the tail end of the transmission shaft 3; the scraper assembly includes sleeve 5, blade disc 6, blade 7 and transmission, sleeve 5 cover establish the outside of transmission shaft 3 and with 1 fixed connection in frame, 6 inside cavities of blade disc are the frustum type, blade disc 6 encircle in the outside of weeding blade 4 and the center of blade disc 6 with 5 normal running fit of sleeve, blade disc 6 pass through transmission with 3 synchronous drive of transmission shaft are connected, the outside of blade disc 6 is provided with a plurality of blade 7, the cutting edge of blade 7 is parallel with the generating line of blade disc 6, the bottom place height of blade 7 is less than the height at 4 places of weeding blade.

The agricultural farmland weeding machine comprises a frame 1, a weeding assembly and a soil shoveling assembly, wherein a cutter head 6 of the soil shoveling assembly surrounds the outer side of a weeding blade 4, the center of the cutter head 6 is in running fit with a sleeve 5, and the soil shoveling assembly is arranged on the outer side of the weeding blade 4, so that soil shoveling treatment can be performed in advance before weeding, and the smoothness of the soil during weeding next time is ensured, so that the weeding blade is well protected, and the weeding efficiency can be improved. According to the invention, the transmission device is arranged, the cutter head 6 is in synchronous transmission connection with the transmission shaft 3 through the transmission device, so that the soil shoveling component and the weeding component can run synchronously, the control complexity is reduced, the rotation speed of the cutter head 6 is lower than that of the blades through the transmission device, the moment of the blades 7 during soil shoveling is ensured, the soil shoveling force is increased, most of rugged terrains can be coped, the rotation speed state of the motor 2 is not required to be adjusted after soil shoveling is finished, the shearing speed of the weeding blades 4 can be simultaneously ensured, the weeding efficiency is improved, the two components are mutually matched and do not influence each other, and the integral working efficiency is improved

In this embodiment, the upper end of blade disc 6 has set firmly roof 8, and in the invention, the main aspects opening 17 of blade disc 6 is down, the upper end of blade disc 6 is the tip opening 17 of blade disc 6, the centre bore has been seted up at the center of roof 8, blade disc 6 passes through centre bore and sleeve 5 normal running fit, specifically set up through the bearing cooperation can, sleeve 5 is fixed in frame 1, the downthehole installation bearing of centre bore rotates in the outside of sleeve 5 to be connected, the fixed limiting plate 9 that is used for going up roof 8 spacing on the sleeve 5, limiting plate 9 can set up two from top to bottom for roof 8 carries on spacingly along the axial of sleeve 5, prevents droing of blade disc 6.

In this embodiment, the transmission device includes a first gear 10, a second gear 11 and a rotating shaft 12, an inner gear ring 13 is arranged on the surface of the inner side of the cutter head 6, the first gear 10 is in transmission connection with the transmission shaft 3, the second gear 11 is simultaneously meshed with the first gear 10 and the inner gear ring 13, the second gear 11 is in transmission connection with the limiting plate 9 through a rotating shaft 12, the cutter head 6 is driven to rotate through the second gear 11, and through the arrangement, the structure can be simplified, the control complexity is reduced, the rotating speed of the cutter head 6 is lower than that of the blades by arranging the transmission device, the moment of the blades 7 when shoveling soil is ensured, the soil shoveling force is increased, most of the concave-convex terrains can be coped with, after the soil shoveling is finished, the rotating speed state of the motor 2 is not required to be adjusted, the shearing speed of the weeding blades 4 can be ensured, and the weeding efficiency is improved. In order to prevent the influence of splashed soil or weeds on the transmission device, a bottom plate is detachably arranged on the inner side of the cutter head 6, and the bottom plate divides the upper part of the cutter head 6 into a transmission protection area for protecting the transmission device.

In this embodiment, the blade 7 and the blade disc 6 can be dismantled and be connected, the outside of blade disc 6 sets firmly be used for the mounting panel 14 of blade 7 location installation, offer on the mounting panel 14 and be used for connecting the installation department of blade 7. Through with blade 7 with blade disc 6 can dismantle the connection, can in time change when one of them blade 7 receives the damage, when having guaranteed work efficiency, reduced the maintenance cost, through setting up mounting panel 14, can firmly fix blade 7, improved the stability that blade 7 shoveled soil, prevent that it is not hard up.

In this embodiment, two blades 7 are a set of, and two blades 7 are separated by and arrange and all set up along the circumference of blade disc 6, are separated by between two blades 7 and form the ascending passageway 15 that is used for earth to pass through, through separating two blades 7 and set up, can leave certain transport space for the earth of shoveling, play certain guide effect to earth, prevent its department injury peasant that splashes, improved safe handling coefficient. Specifically, the upper end of blade 7 is provided with an annular channel 16 for receive each earth that rises passageway 15, plan its unified processing, set up an opening 17 that is used for discharging earth on the annular channel 16, discharge through opening 17 is unified, the upper end of rising passageway 15 with annular channel 16 intercommunication.

In this embodiment, the length that blade 7 stretches out 6 bottoms of blade disc is the length of one-third blade 7, through 6 bottoms with 7 depths of blade disc, can make blade 7 cut into earth more easily and carry out the work of shovel soil, has improved the efficiency of shovel soil, through stretching out its length of one-third, can guarantee the structural strength of 7 work positions of blade, reduces stress concentration.

In this embodiment, the rack 1 is further provided with a protection device, the protection device includes an annular contact plate 18, an inner support 19, an outer support 20, a return spring 21 and a switch 22, the inner side of the annular contact plate 18 is fixedly connected to the inner support 19, the inner support 19 is slidably disposed in the outer support 20, the outer support 20 is fixedly connected to the rack 1, the return spring 21 is disposed between the inner support 19 and the outer support 20, one end of the return spring 21 is fixedly connected to the inner support 19, the other end of the return spring is in contact with the switch 22, the switch 22 controls the opening and closing of the motor 2, the annular contact plate 18 is touched to transmit force to the inner support 19, the inner support 19 compresses the spring 21 and triggers the switch 22, and the motor 2 is immediately closed under the action of the switch 22.

Finally, it is noted that the above-mentioned preferred embodiments illustrate rather than limit the invention, and that, although the invention has been described in detail with reference to the above-mentioned preferred embodiments, it will be understood by those skilled in the art that various changes in form and detail may be made therein without departing from the scope of the invention as defined by the appended claims.

Claims

1. An agricultural farmland weeder, which is characterized in that: the weeding machine comprises a rack, a weeding assembly and a soil shoveling assembly, wherein the weeding assembly comprises a motor, a transmission shaft and weeding blades, the motor is fixed on the rack, the transmission shaft is in transmission connection with the motor, and the weeding blades are connected to the tail end of the transmission shaft; the shovel soil subassembly includes sleeve, blade disc, blade and transmission, the sleeve cover establish the outside of transmission shaft and with frame fixed connection, the inside cavity of blade disc is the frustum type, the blade disc encircle in the outside of weeding blade and the center of blade disc with sleeve normal running fit, the blade disc pass through transmission with transmission synchronous drive connects, the outside of blade disc is provided with a plurality of the blade, the cutting edge of blade is parallel with the generating line of blade disc, the bottom position height of blade is less than the weeding blade position height.

2. An agricultural field weeding machine according to claim 1, wherein: the upper end of blade disc has set firmly the roof, the centre bore has been seted up at the center of roof, the blade disc passes through centre bore and sleeve normal running fit, the fixed limiting plate that is used for on the sleeve the roof is spacing.

3. An agricultural field weeding machine according to claim 2, wherein: the transmission device comprises a first gear, a second gear and a rotating shaft, an inner side surface of the cutter head is provided with an inner gear ring, the first gear is connected with the transmission shaft in a transmission mode, the second gear simultaneously engages with the first gear and the inner gear ring, the second gear is connected with the limiting plate in a transmission mode through the rotating shaft, and the cutter head rotates by being driven by the second gear.

4. An agricultural field weeding machine according to any one of claims 1 to 3, wherein: the blade with the connection can be dismantled to the blade disc, the outside of blade disc has set firmly and is used for the mounting panel of blade location installation, offer on the mounting panel and be used for connecting the installation department of blade.

5. An agricultural field weeding machine according to claim 4, wherein: the two blades are a set of, and two blades are separated by and are arranged and all set up along the circumference of blade disc, are separated by between two blades and form the ascending passageway that is used for earth to pass through.

6. An agricultural field weeding machine according to claim 5, wherein: the upper end of blade is provided with an annular channel, set up an opening that is used for discharging earth on the annular channel, the upper end of passageway that rises with the annular channel intercommunication.

7. An agricultural field weeding machine according to claim 6, wherein: the length of the blade extending out of the bottom of the cutter head is one third of that of the blade.

8. An agricultural field weeding machine according to claim 1, wherein: the protection device is further arranged on the rack and comprises an annular touch panel, an inner support, an outer support, a reset spring and a switch, the inner side of the annular touch panel is fixedly connected to the inner support, the inner support is arranged in the outer support in a sliding mode, the outer support is fixedly connected with the rack, the reset spring is arranged between the inner support and the outer support, one end of the reset spring is fixedly connected with the inner support, the other end of the reset spring is in contact with the switch, the switch controls the opening and closing of the motor, the annular touch panel is touched to transmit force to the inner support, the inner support compresses the spring and triggers the switch, and the motor is immediately closed under the action of the switch.