CN218649170U - Weeding equipment - Google Patents

Abstract

The utility model relates to weeding equipment, which comprises a frame, a chassis, a power mechanism, two traveling mechanisms, a weeding mechanism, a top dressing mechanism and a control system; the frame and the power mechanism are respectively arranged on the chassis, the two travelling mechanisms are symmetrically arranged on the left side and the right side of the chassis, and the power mechanism is respectively connected with the two travelling mechanisms through the transmission mechanism; the weeding mechanism is arranged at the front part of the frame and comprises a weeding knife and a second motor, and the second motor drives the weeding knife to rotate; the top dressing mechanism is arranged at the rear part of the frame; the control system is arranged on the frame and is respectively connected with the power mechanism, the weeding mechanism and the additional fertilizing mechanism. The utility model discloses collect arable land, weeding, topdressing as an organic whole, degree of automation is high, and the operating efficiency is high, has greatly reduced the negative effects to environment, soil and seedling growth.

Description

Weeding equipment

Technical Field

The utility model relates to a sesame weeding topdressing machinery technical field, concretely relates to weeding equipment.

Background

Sesame is an important characteristic oil crop in China as a traditional crop in China, has an area of 700 ten thousand mu every year and is mainly planted in double cropping areas such as Huanghuai and Jianghuai. The sesame seeds are generally sown in wide and narrow rows, the seedling stage is from the emergence of seedlings to the bud stage, the sesame seeds grow slowly, the height of the seedlings is less than 20 centimeters, row weeds of the sesame seeds grow extremely fast, the normal growth of the sesame seeds in the seedling stage is influenced, and the later-stage yield is greatly reduced. Weeding is mainly carried out in a mode of hoeing by manpower or spraying pesticides at present; the manual hoeing effect is very slow, the labor intensity is very high, the seedlings are very easy to be injured by spraying pesticides, and in addition, negative influences are caused on the environment, the soil and the growth of sesame seedlings. However, no sesame special intertillage weeding machine exists in the current market, only part of small herbicides are mainly prepared by modifying production machines of crops such as cotton, sunflower and the like, the small herbicides are not matched with agricultural technologies of sesame agricultural machines, and the small intertillage weeding machine is easy to be entangled and blocked in operation and has lower weeding efficiency. The reformed small-sized sesame intertillage weeder has the following defects: the small sesame intertillage weeding machine can only be provided with a single dedusting reamer, weeds in wide rows cannot be completely removed, and because sesame seedlings are fragile and more weeds exist around the sesame seedlings, i.e. weeds in narrow rows of sesame cannot be removed; most of weeding reamer on the weeder is fixed mounting on the machine, can not carry out artificial regulation according to the height of sesame to the height of weeding reamer, cause the phenomenon of weeding effect not good even hindering the seedling.

Therefore, the current sesame planting is mainly performed manually, the labor cost of production links such as weeding and harvesting accounts for about 60% of the whole production cost, the sesame planting cost in China is as high as 500 yuan/mu, and the American sesame planting cost with low labor cost and high mechanization degree is only 100-200 yuan/mu. The production mode with high cost and low benefit causes a plurality of farmers to abandon sesame production, thus leading the comprehensive productivity and competitiveness of the sesame in China to be stricken greatly.

In recent years, along with the improvement of living standard of people, the health care function of sesame (especially the black sesame) is more and more emphasized by people, so that the demand of the sesame is increased year by year, the productivity and the competitiveness of sesame raw materials are directly related to the stability and the durability of sesame product supply in China, but the domestic sesame production can not meet the market demand far away.

In view of the fact that sesame is used as a special health-care agricultural product, the structure adjustment of the planting industry of China is increased, the planting area of the sesame is gradually recovered, but the industrial development is still restricted due to the low mechanization degree and the high production cost of the sesame. Therefore, in sesame planting, the lack of key technologies and equipment for efficient intertillage and weeding is a bottleneck problem to be solved urgently at present.

SUMMERY OF THE UTILITY MODEL

To the problem that exists in present sesame planting, the utility model provides a weeding equipment, it collects to plough, weeds, topdressing as an organic whole, adapts to the field management of different regional sesame, and the high-efficient weeding of specially adapted sesame seedling period, it weeding respond well, greatly reduced intensity of labour, reduced the human input, greatly reduced the negative effects to environment, soil and sesame seedling growth simultaneously to limit ground.

In order to achieve the above object, the utility model provides a following technical scheme:

a weeding device comprises a frame, a chassis, a power mechanism, two traveling mechanisms, a weeding mechanism, a top dressing mechanism and a control system; the frame and the power mechanism are respectively arranged on the chassis, the two travelling mechanisms are symmetrically arranged on the left side and the right side of the chassis, and the power mechanism is respectively connected with the two travelling mechanisms through a transmission mechanism; the weeding mechanism is arranged at the front part of the rack and comprises a weeding knife and a second motor, and the second motor drives the weeding knife to rotate; the top dressing mechanism is arranged at the rear part of the rack; the control system is installed on the rack and is respectively connected with the power mechanism, the weeding mechanism and the topdressing mechanism.

Further, a plurality of the weeding mechanisms are arranged in parallel at the front part of the frame.

Furthermore, the weeding mechanism also comprises a knife rest, a transmission device and a speed reducer; the second motor and the speed reducer are integrated and integrally mounted on a bearing plate at the front end of the rack, the speed reducer is connected with the knife rest through the transmission device, and the weeding knife is mounted at the bottom end of the knife rest; the second motor drives the knife rest and the weeding knife to rotate through the transmission device.

Further, a preset angle alpha exists between the plane where the weeding knife is located and the ground.

Furthermore, the weeding knife is an arc-shaped weeding knife, and the cutting edge of the weeding knife is provided with densely distributed sawteeth.

Further, the second motor is a stepping motor.

Further, a plurality of the topdressing mechanisms are arranged at the rear part of the rack side by side.

Furthermore, the top application mechanism comprises a fertilizer box, a fixed supporting device, a height adjusting device, a first furrow opener, a second furrow opener and a fertilizer outlet; the fertilizer box is arranged on the rack behind the weeding mechanism; the height adjusting device is fixed on the rack below the fertilizer box, the first furrow opener and the second furrow opener are respectively fixed on the height adjusting device through the fixed supporting device, and the first furrow opener and the second furrow opener are arranged in a staggered manner from front to back;

a plurality of second furrow openers arranged at intervals of the top dressing mechanisms are arranged behind the interval positions of a plurality of first furrow openers arranged at intervals in the front row in a staggered manner with the first furrow openers;

the fertilizer outlet is arranged behind the first furrow opener; the fertilizer outlet is connected with a valve of the fertilizer outlet at the bottom of the fertilizer box through a fertilizer pipe.

Furthermore, weeding equipment still includes the battery, the battery is power unit, weeding mechanism, additional fertilizer mechanism and control system power supply.

Further, the control system comprises an image acquisition device, a support and a main controller; the image acquisition device is arranged on the rack through the bracket and is used for acquiring image information in front of the rack and transmitting the image information to the main controller; the main controller is arranged on the rack; the main controller is respectively connected with the power mechanism, the weeding mechanism and the additional fertilizing mechanism.

The utility model has the advantages that:

the utility model provides a weeding equipment overall structure is compact, collects arable land, weeding, additional fertilizer as an organic whole, greatly reduced manufacturing cost, through weeding mechanism weeding back, utilize the furrow opener ditching to hold up the ridge, reach and clear away weeds in the wide line, bury ruderal purpose in the narrow line, improved weeding effect greatly, will the utility model is used for sesame Tian Jianguan in the middle of, can avoid or reduce the effect that the sesame received the waterlogging in the key growth period of flowering phase, the utility model discloses a plurality of furrow openers that saw-tooth shape distributes further improve weeding effect and additional fertilizer effect.

The utility model discloses a ditching mode of double furrow opener, a plurality of furrow opener through adopting the interval to set up digs and digs, then, sets up the fertilizer outlet at the rear of the first furrow opener of front stall, utilizes the second furrow opener of interval setting to carry out formal ditching, and the soil of formal ditching jack-up covers on the fertilizer application material, has both guaranteed fertilizer and has gone into soil, has controlled fertilizer and the distance of the seed or the seedling of broadcasting in the future again effectively, avoids appearing burning kind or burning seedling phenomenon. Meanwhile, as the fertilizer is turned over and covered at the position of the furrow, when the sowing is finished and the seeds are covered with soil, the furrow-opening type covering soil is preferably adopted, so that the applied fertilizer and the covering soil can be brought to the furrow where the seeds are positioned to form a ridge, the stirring and mixing effects between the fertilizer and the soil are realized, the fertilizer is more uniformly distributed, meanwhile, because the soil exists above the fertilizer before the furrowing and covering soil, the covering soil covers the seeds firstly after the furrowing, and the direct contact of the fertilizer seeds is avoided. In addition, the drainage of the ridge with the seeds or the seedlings is greatly increased by adopting the ditching soil covering.

The utility model discloses the automatic walking of complete machine, weeding mechanism weed and additional fertilizer mechanism fertilizies under control system control. Control system passes through image acquisition device collection frame the place ahead image information, confirms the region of treating the weeding, and the weeding sword rotates under the drive of second motor, treats the regional accurate weeding of weeding.

The utility model discloses the setting of well a plurality of weeding mechanisms can be to many ridges weeding operation in step, promotes field management production mode and is changed to intensive type by extensive type, and the liberation is more labours, and the operation is simple and easy, and the grass removal rate can reach 95% in the broad line, has obviously improved weeding effect. The utility model discloses compare with current sesame weeding mode, its degree of automation is high, and is easy and simple to handle, the operating efficiency is high, but every hour continuous operation 20-30 mu, greatly reduced cost of labor and pesticide cost's input, realized the high-efficient weeding of sesame crop, greatly reduced the negative effects to environment, soil and sesame seedling growth simultaneously to the limit, the utility model provides a do not have suitable arable land weeding machinery's actual production problem in the sesame cultivation.

Drawings

Fig. 1 is a perspective view of the weeding apparatus of the present invention;

fig. 2 is a front view of the weeding apparatus of the present invention;

fig. 3 is a side view of the weeding apparatus of the present invention;

fig. 4 is a schematic structural view of the weeding mechanism of the present invention;

fig. 5 is a schematic structural view of the middle top application mechanism of the present invention.

Wherein: 1-a frame, 2-a walking mechanism, 21-a tire, 22-a transmission shaft, 23-a steel ring, 24-a connecting rod, 3-a weeding mechanism, 31-a weeding knife, 32-a knife rest, 33-a transmission device, 34-a speed reducer, 35-a second motor, 4-a topdressing mechanism, 41-a fertilizer box, 42-a fixed supporting device, 43-a first furrow opener, 44-a second furrow opener, 45-a fertilizer discharging port, 5-a control system, 51-an image acquisition device, 52-a bracket, 53-a main controller and 6-a battery.

Detailed Description

The following description will be made in detail with reference to the accompanying drawings and examples. The following examples are merely illustrative of the present invention and are not intended to limit the scope of the present invention.

In the present specification, terms of orientation or positional relationship such as up, down, left, right, inside, outside, front, rear, head, and tail are established based on the orientation or positional relationship shown in the drawings. The corresponding positional relationship may also vary depending on the drawings, and therefore, should not be construed as limiting the scope of protection.

In the present invention, the terms "mounted", "connected", "fixed", etc. should be understood in a broad sense, for example, they may be fixedly connected, detachably connected, integrally connected, or mechanically connected, the components may also be electrically connected or may communicate with each other, directly connected, or indirectly connected through an intermediate medium, or may be connected through two components, or may be in an interaction relationship between two components. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

The embodiment describes a weeding apparatus, which not only can realize high-efficiency weeding, but also can carry out topdressing, ditching and ridge raising. The embodiment takes the forward weeding direction of the weeding equipment as the front, and takes the opposite direction as the back.

As shown in fig. 1, the weeding device comprises a frame 1, a chassis, a power mechanism, a transmission mechanism, two traveling mechanisms 2, a weeding mechanism 3, a top dressing mechanism 4 and a control system 5. Frame 1 is fixed in the chassis top, power unit installs on the chassis, the left and right sides on the chassis is installed to two running gear 2 symmetries, weeding mechanism 3 installs in the front portion of frame 1, top application mechanism 4 installs the rear portion at frame 1, control system 5 installs in frame 1, control system 5 and power unit, weeding mechanism 3 and top application mechanism 4 link to each other respectively, under control system 5 control, power unit drives 2 actions of running gear through drive mechanism and makes weeding equipment walk, weeding mechanism 3 weeds and top application mechanism 4 fertilizies.

The power mechanism comprises a first motor and a speed reducer, and the speed reducer of the embodiment is provided with an electromagnetic clutch. The first motor is connected with the transmission mechanism through the speed reducer, and the transmission mechanism is respectively connected with the two walking mechanisms 2. The drive mechanism of this embodiment can adopt the combined mechanism of straight line transmission and the subassembly that turns to in the current two driving cars, and first motor passes through drive mechanism and drives 2 rotation actions of two running gear, and then realizes advancing, retreating and turning to of weeding equipment.

As shown in fig. 1 and 3, the traveling mechanism 2 includes a tire 21, a transmission shaft 22, a steel ring 23 and a connecting rod 24, the tire 21 is sleeved on the outer circumference of the steel ring 23, the transmission shaft 22 passes through the center of the steel ring 23, one end of the transmission shaft 22 is connected with the transmission mechanism, the other end is installed inside a rolling bearing, the outer side of the rolling bearing is connected with the bottom end of the connecting rod 21, and the top end of the connecting rod 24 is connected with the frame 1.

The front part of frame 1 sets up a plurality of weeding mechanisms 3 side by side, can plant the interval that grows to require to set up between the weeding monomer according to the sesame, improves herbicidal efficiency greatly.

As shown in fig. 1, 2 and 4, the weeding mechanism 3 includes a weeding blade 31, a blade holder 32, a transmission 33, a speed reducer 34 and a second motor 35. Second motor 35 is as an organic whole with reduction gear 34, integral erection is on the bearing plate of frame 1 front end portion, reduction gear 34 links to each other with transmission 33 top, it rotates to drive transmission 33, reduction gear 34 can set up different speed reduction ratios in order to adapt to different field operating modes according to field sesame weeding actual conditions, knife rest 32 top and transmission 33 bottom bolted connection, the welding is in knife rest 32 bottom in the middle part of weeding sword 31, this embodiment will weed sword 31 and knife rest 32 fixed connection, can make weeding sword 31 more firm in structure when weeding, avoid weeding sword 31 not hard up, the circumstances such as drop reduces the weeding effect. The plane where the weeding knife 31 is located is inclined towards the ground from the fixed end of the knife rest 32, a certain angle alpha exists between the plane and the ground, preferably, the angle alpha is 5-10 degrees, and the angle between the weeding knife 31 and the ground can be adjusted through a universal joint arranged at the connecting part of the knife rest 32 and the transmission device 33 according to the working conditions on site, so that the weeding effect can be further improved. The second motor 35 drives the knife rest 32 and the weeding knife 31 to rotate through the transmission device 33, so that the weeding knife 31 turns to an area to be weeded to accurately weed, and the rotation frequency of the weeding knife 31 is adjusted through the speed reducer 34, so that the weeding knife 31 can weed like a sickle, and can weed by cutting back and forth.

In this embodiment, the weeding knife 31 is an inward concave arc-shaped weeding knife, and the cutting edge of the weeding knife 31 is provided with densely distributed sawteeth, so that the weeding efficiency is improved. The knife rest 32 is a bending structure, and is bent towards the front of the weeding equipment, so that the stress at the joint of the knife rest 32 and the transmission device 33 is favorably reduced, and the bending structure is also convenient for adjusting the included angle between the plane of the weeding knife 31 and the ground. The second motor 35 can adopt a stepping motor, and the reliable and stable operation of the weeding mechanism 3 can be ensured under the control of the control system 5, and the control is simple and accurate.

The multiple top dressing mechanisms 4 are arranged side by side at the rear part of the frame 1 and are arranged corresponding to the multiple weeding mechanisms 3. As shown in fig. 3 and 5, the top dressing mechanism 4 includes a fertilizer box 41, a fixed support device 42, a first furrow opener 43, a second furrow opener 44, a height adjusting device and a fertilizer outlet 45. Behind the weeding mechanism 3, a fertilizer box 41 is mounted on the frame 1 for holding fertilizer. The height adjusting device is welded and fixed on the rack 1 below the fertilizer box 41, the first furrow opener 43 and the second furrow opener 44 are fixedly arranged on the height adjusting device through the fixed supporting device 42 respectively, and the second furrow opener 44 is positioned at the rear side of the first furrow opener 43, so that the first furrow opener 43 and the second furrow opener 44 are staggered front and back, and a preset distance is reserved between two ditches which are opened by the first furrow opener 43 and the second furrow opener 44. The first furrow opener 43 and the second furrow opener 44 can be driven by the height adjusting device to adjust the height of the pitch from the ground. The whole first furrow opener 43 of this embodiment weeding equipment and second furrow opener 44 are two rows of arrangements of zigzag, and when weeding, the grass root that stretches into the soil is eradicateed to accessible ditching form, and sets up two rows of furrow openers around and be favorable to reducing the ditching interval, improves the weeding effect.

The first furrow opener 43 and the second furrow opener 44 are respectively composed of a support cylinder and a plowshare, and the plowshare is welded and fixed at the bottom end of the support cylinder.

The upper end and the lower end of the support cylinder of the first furrow opener 43 are closed, and the inner side surface of the closed end at the lower end is an inclined surface inclining downwards from the forward direction to the backward direction, so that the fertilizer can be prevented from remaining in the support cylinder. An opening is formed in the upper portion of the side portion of the supporting cylinder and used for being connected with a valve at a fertilizer outlet at the bottom end of the fertilizer box 41 through a fertilizer discharging pipe (not shown in the figure), the fertilizer outlet 45 is formed in the rear end of the joint of the supporting cylinder and the plowshare, fertilizer in the fertilizer box 41 is discharged from the fertilizer outlet 45 through the supporting cylinder, the fertilizer is applied, and the fertilizer applying efficiency is high. The fertilizer outlet 45 of this embodiment can also be directly connected with the valve of the fertilizer outlet at the bottom end of the fertilizer box 41 through the fertilizer pipe, and the fertilizer pipe can be fixed outside the branch cylinder or can pass through to the fertilizer outlet 45 from the inner side of the branch cylinder.

During fertilization, the fertilizer discharging port 45 is opened, a valve at the bottom end of the fertilizer box 41 is opened for fertilization, the second furrow opener 44 is utilized for formal ditching, the covering soil formed by ditching of the second furrow opener 44 covers the fertilized seeds, so that not only is the fertilizer buried, but also the distance between the fertilizer and the seeds or seedlings sowed in the future is effectively controlled, the phenomena of seed burning or seedling burning are avoided, and the fertilizer loss is also avoided.

In this embodiment, the fixing and supporting device 42 is an S-shaped curved plate, one end of which is connected with the height adjusting device, and the other end of which is sleeved on the supporting cylinder, and the S-shaped curved plate is beneficial to reducing the vibration of the trencher 43 in the trenching process.

Set up adjusting part at fertilizer outlet 45, adjusting part includes tube barrel structure and bolt, and tube barrel structure welded fastening is in the fertilizer outlet 45 outsides, and is equipped with the opening corresponding with fertilizer outlet 45 on the tube barrel structure lateral wall, and fertilizer falls to ground by tube barrel structure lower extreme opening. The bolt is inserted into the pipe barrel structure, and the opening and closing of the fertilizer outlet 45 can be realized by adjusting the insertion depth of the bolt in the pipe barrel structure, and the opening size of the fertilizer outlet 45 can be adjusted, so that the fertilizing amount is further adjusted.

In addition, a battery 6 is arranged on the frame 1 at the rear side of the fertilizer box 41 and supplies power to electric equipment in weeding equipment, such as the control system 5, the power mechanism, the speed reducer 34, the second motor 35, a valve, a height adjusting device and the like.

As shown in fig. 1 and 2, the control system 5 includes an image pickup device 51, a stand 52, and a main controller 53. The image capturing device 51 is mounted on the gantry 1 via a bracket 52 and faces the front of the gantry 1, and is configured to capture an image of the front of the gantry 1. The main controller 53 is installed on the frame 1, and is connected with the image acquisition device 51, the power mechanism, the speed reducer 34, the second motor 35, the valve and the height adjusting device are respectively in data connection, the main controller 53 acquires image information of weeds and sesames in front of the frame 1 through the image acquisition device 51, a digital signal processing module is arranged in the main controller 53, the image information acquired by the image acquisition device 51 is analyzed and processed through the digital signal processing module to obtain an area to be weeded, the main controller 53 controls the power mechanism, the speed reducer 34 and the second motor 35 to act according to the area information to be weeded, the weeding knife 31 is driven to weed, when land needs to be cultivated, and weeds are sowed or matched with weeds, the main controller 53 controls the height adjusting device to descend the furrow opener to a preset position, and when fertilizer needs to be applied, the main controller 53 opens the valve of the corresponding topdressing mechanism 4.

The image capturing device 51 in this embodiment may be a high definition camera. In addition, control system 5 still is equipped with a plurality of branch controllers, sets up respectively on weeding mechanism 3, and main control unit 53 links to each other with second motor 35 through dividing the controller, and main control unit 53 drives weeding sword 31 through dividing corresponding second motor 35 of controller control and rotates, can make each weeding sword 31 weed respectively to improve weeding efficiency.

While the principles of the invention have been described in detail in connection with the preferred embodiments thereof, it will be understood by those skilled in the art that the above-described embodiments are merely illustrative of exemplary implementations of the invention and are not limiting of the scope of the invention. The details in the embodiments do not constitute the limitations of the scope of the present invention, and any obvious changes such as equivalent transformation, simple replacement, etc. based on the technical solution of the present invention all fall within the protection scope of the present invention without departing from the spirit and scope of the present invention.

Claims (10)

1. Weeding equipment is characterized by comprising a rack (1), a chassis, a power mechanism, two traveling mechanisms (2), a weeding mechanism (3), a top dressing mechanism (4) and a control system (5); the frame (1) and the power mechanism are respectively arranged on the chassis, the two travelling mechanisms (2) are symmetrically arranged on the left side and the right side of the chassis, and the power mechanism is respectively connected with the two travelling mechanisms (2) through a transmission mechanism; the weeding mechanism (3) is installed on the front portion of the rack (1), the weeding mechanism (3) comprises a weeding knife (31) and a second motor (35), and the second motor (35) drives the weeding knife (31) to rotate; the top dressing mechanism (4) is arranged at the rear part of the rack (1); the control system (5) is installed on the rack (1), and the control system (5) is connected with the power mechanism, the weeding mechanism (3) and the topdressing mechanism (4) respectively.

2. A weeding apparatus according to claim 1, wherein a plurality of said weeding mechanisms (3) are arranged side by side in the front of the frame (1).

3. A weeding apparatus according to claim 1 or 2, wherein the weeding mechanism (3) further comprises a blade holder (32), a transmission (33) and a speed reducer (34); the second motor (35) and the speed reducer (34) are integrated and integrally mounted on a bearing plate at the front end of the rack (1), the speed reducer (34) is connected with the knife rest (32) through the transmission device (33), and the weeding knife (31) is mounted at the bottom end of the knife rest (32); the second motor (35) drives the knife rest (32) and the weeding knife (31) to rotate through the transmission device (33).

4. A weeding apparatus according to claim 1, wherein the blade (31) is positioned in a plane at a predetermined angle α to the ground.

5. The weeding apparatus according to claim 1, wherein the weeding knife (31) is an arc-shaped weeding knife, and the cutting edge of the weeding knife (31) is provided with densely distributed saw teeth.

6. A weeding apparatus as claimed in claim 1, wherein the second motor (35) is a stepper motor.

7. A weeding apparatus according to claim 2, wherein a plurality of said top dressing mechanisms (4) are arranged side by side at the rear of the frame (1).

8. A weeding apparatus according to claim 1 or 7, wherein the top application mechanism (4) comprises a fertilizer box (41), a fixed support device (42), a height adjustment device, a first furrow opener (43), a second furrow opener (44) and a fertilizer outlet (45); the fertilizer box (41) is arranged on the frame (1) behind the weeding mechanism (3); the height adjusting device is fixed on the rack (1) below the fertilizer box (41), the first furrow opener (43) and the second furrow opener (44) are respectively fixed on the height adjusting device through the fixed supporting device (42), and the first furrow opener (43) and the second furrow opener (44) are arranged in a staggered mode in the front-back direction;

a plurality of second furrow openers (44) arranged at intervals of the top dressing mechanisms (4) are arranged behind the interval positions of the first furrow openers (43) arranged at intervals in the front row in a staggered manner with the first furrow openers (43);

the fertilizer outlet (45) is arranged behind the first furrow opener (43); the fertilizer outlet (45) is connected with a valve of a fertilizer outlet at the bottom end of the fertilizer box (41) through a fertilizer pipe.

9. A weeding apparatus according to claim 1, further comprising a battery (6), wherein the battery (6) powers the power mechanism, the weeding mechanism (3), the top dressing mechanism (4) and the control system (5).

10. A weeding apparatus as claimed in claim 1, wherein the control system (5) comprises an image acquisition device (51), a bracket (52) and a master controller (53); the image acquisition device (51) is arranged on the rack (1) through the bracket (52) and is used for acquiring image information in front of the rack (1) and transmitting the image information to the main controller (53); the main controller (53) is arranged on the frame (1); the main controller (53) is respectively connected with the power mechanism, the weeding mechanism (3) and the additional fertilizing mechanism (4).

Images