CN113853900A

CN113853900A - Solid-state fertilizer deep-fertilizing machine

Info

Publication number: CN113853900A
Application number: CN202111261495.XA
Authority: CN
Inventors: 钱孟波; 李希斌; 王雍商
Original assignee: Zhejiang A&F University ZAFU
Current assignee: Zhejiang A&F University ZAFU
Priority date: 2021-10-28
Filing date: 2021-10-28
Publication date: 2021-12-31

Abstract

The invention discloses a solid fertilizer deep fertilizing machine, which comprises: a frame; the hole digging device is arranged on the rack and comprises a spiral drill bit and a rotary lifting device, and the rotary lifting device drives the spiral drill bit to rotate and lift; the fertilizing device is arranged on the rack and comprises a fertilizer box, a fertilizer measuring mechanism and a fertilizing pipe, wherein the fertilizer measuring mechanism is used for keeping constant fertilizer application amount, an outlet of the fertilizer box is connected with an inlet of the fertilizer measuring mechanism, and an outlet of the fertilizer measuring mechanism is connected with an inlet of the fertilizing pipe; and the soil covering device comprises a liftable soil collecting box, a first connecting piece and a connecting rod, wherein the first connecting piece is rotatably connected to the rear end of the auger bit, one end of the connecting rod is hinged to the first connecting piece, the other end of the connecting rod is hinged to the inner wall of the soil collecting box, and the soil collecting box is sleeved outside the auger bit. The deep fertilizer applicator can complete the work of granular deep fertilizer application, reduces the labor cost and has high working efficiency.

Description

Solid-state fertilizer deep-fertilizing machine

Technical Field

The application relates to agricultural machinery, in particular to a solid-state fertilizer deep-fertilizing machine.

Background

At present, most of forest orchards in rural areas in China still adopt an artificial fertilizer spreading mode with low efficiency for fertilization, and the fertilization mode not only causes fertilizer waste, but also causes large-area rural non-point source pollution. And the traditional fertilizing machine can only complete one part of the whole fertilizing operation link, and needs manpower to assist in fertilizing. Therefore, a new orchard fertilizer applicator is urgently needed to be developed to solve the problems.

In the market, two main modes of common orchard deep fertilization operation are available, one mode is that a hole-shaped hole is dug in soil by using a hole digging device, and fertilizer is applied into the hole; the second method is to use a ditching device to dig a strip deep ditch near the root of the fruit tree and apply fertilizer into the ditch.

The existing small orchard fertilizing machine is mainly a ditcher, and although mechanization is realized, the horizontal root system of the fruit tree is easy to damage, and the efficiency is low; the small ditcher has the inherent mechanical characteristics that the ditching depth is generally below 150mm, the insufficient depth causes the volatile of granular fertilizer, the utilization rate is low, and the environment is polluted.

Disclosure of Invention

The purpose of this application embodiment is to provide a fertile deep fertilizing machine of solid-state to solve current ditching machine and fragile fruit tree horizontal root system, and efficiency is lower, the ditching degree of depth is little, leads to the fertile volatilizing of granule, the low and polluted environment's of low-usage problem.

According to the embodiment of the application, a solid-state fertilizer deep fertilizing machine is provided, which comprises:

a frame;

the hole digging device is arranged on the rack and comprises a spiral drill bit and a rotary lifting device, and the rotary lifting device drives the spiral drill bit to rotate and lift;

the fertilizing device is arranged on the rack and comprises a fertilizer box, a fertilizer measuring mechanism and a fertilizing pipe, wherein the fertilizer measuring mechanism is used for keeping constant fertilizer application amount, an outlet of the fertilizer box is connected with an inlet of the fertilizer measuring mechanism, and an outlet of the fertilizer measuring mechanism is connected with an inlet of the fertilizing pipe; and

the soil covering device comprises a liftable soil collecting box, a first connecting piece and a connecting rod, wherein the first connecting piece is rotatably connected to the rear end of the auger bit, one end of the connecting rod is hinged to the first connecting piece, the other end of the connecting rod is hinged to the inner wall of the soil collecting box, and the soil collecting box is sleeved outside the auger bit.

Furthermore, a chassis capable of walking is installed on the machine frame.

Further, the rotary lifting device includes:

a drive mechanism and a hydraulic pump;

the spline shaft is coupled with the output end of the driving mechanism, and the lower end of the spline shaft is fixedly connected with the spiral drill bit; and

and the cylinder body of the hydraulic cylinder is communicated with the inlet and the outlet of the hydraulic pump, and the push rod of the hydraulic cylinder drives the spline shaft to move up and down.

Further, the drive mechanism includes:

a power source; and

the input end of the reduction gearbox is connected with the output end of the power source, and the output end of the reduction gearbox is coupled with the spline shaft.

Further, the reduction box includes:

a box body;

the input shaft is supported in the box body and driven to rotate by the power source;

the first bevel gear is fixed on the input shaft; and

and the second bevel gear is sleeved on the spline shaft and is used for being meshed with the first bevel gear.

Further, the reduction box includes:

and the third bevel gear is sleeved on the spline shaft and fixedly connected with the second bevel gear, the third bevel gear is used for being meshed with the first bevel gear, and the first bevel gear can only be meshed with one of the second bevel gear and the third bevel gear.

Further, fertile mechanism of volume includes:

the upper end and the lower end of the container are both open;

the upper guide sleeve is fixed at a fertilizer storage port at the upper end of the container;

the lower guide sleeve is fixed at a fertilizer outlet at the lower end of the container;

the upper tongue plate is slidably arranged in the upper guide sleeve and is provided with a first opening and a first shielding part;

the lower tongue plate is slidably arranged in the lower guide sleeve and is provided with a second opening and a second shielding part; and

two ends of the second connecting piece are respectively fixedly connected with the upper tongue plate and the lower tongue plate;

when the first opening is communicated with the fertilizer storage opening of the container, the second shielding portion blocks the fertilizer discharge opening of the container, and when the first shielding portion blocks the fertilizer discharge opening of the container, the second opening is communicated with the fertilizer storage opening of the container.

Further, fertile mechanism of volume still includes:

and one end of the spring is connected with the container, and the other end of the spring is connected with the second connecting piece.

Further, the hydraulic pump adopts a bidirectional variable pump.

Furthermore, a first inlet and outlet of the bidirectional variable pump is communicated with a rod end of the hydraulic cylinder, and a second inlet and outlet is communicated with a rodless end of the hydraulic cylinder.

The technical scheme provided by the embodiment of the application can have the following beneficial effects:

according to the embodiment, the spiral drill bit and the rotary lifting device are adopted to carry out hole digging operation and control lifting, so that holes can be easily opened, and a channel is provided for fertilization. The fertilizer using mechanism can fix the fertilizing amount, accurately control the filling and releasing of the fertilizer and meet the agricultural requirement of quantitative fertilization; the structural design of the soil covering device can overcome the problem of soil bonding on the wall of the soil collecting platform, and the soil covering operation can be efficiently completed. The scheme provided by the embodiment of the invention overcomes the defect of deep fertilization of orchard granules, and has the advantages of simple structure, accurate control, complete working process, small damage to vegetation soil and the like; can outstanding granule deep fertilization work of accomplishing in the orchard, reduce the cost of labor, work efficiency is high. The invention overcomes the defect of orchard particle deep fertilization and has the advantages of simple structure, accurate control, complete working process, small damage to vegetation soil and the like; can outstanding granule deep fertilization work of accomplishing in the orchard, reduce the cost of labor, work efficiency is high.

It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the application.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present application and together with the description, serve to explain the principles of the application.

Fig. 1 is a schematic front view of a solid fertilizer deep applicator according to an exemplary embodiment.

Fig. 2 is a left side view of a solid fertilizer applicator according to an exemplary embodiment.

FIG. 3 is a schematic view of a helical drill bit shown in accordance with an exemplary embodiment.

FIG. 4 is a schematic diagram illustrating a retarder construction according to an exemplary embodiment.

FIG. 5 is a schematic diagram of a hydraulic reversing circuit according to an exemplary embodiment.

Fig. 6 is a schematic structural view of a fertilizing apparatus according to an exemplary embodiment.

Fig. 7 is a schematic diagram of a structure of a fertilizer metering mechanism according to an exemplary embodiment.

Fig. 8 is a schematic view of a structure of a casing device according to an exemplary embodiment.

Fig. 9 is a schematic view illustrating the working principle of the soil covering device according to an exemplary embodiment.

The reference numerals in the figures are:

100. a frame;

200. a hole digging device;

210. a helical drill bit; 211. a soil cutting blade; 212. positioning a drill tip; 213. a main shaft; 214. a helical blade;

220. a rotary lifting device; 221. a power source; 222. a speed reducer; 2221. a box body; 2222. an input shaft; 2223. a first bevel gear; 2224. a second bevel gear; 2225. a third bevel gear; 2226. a fixing member; 2227. a first link; 2228. a drive member; 223. a spline shaft; 224. a hydraulic pump; 225. a hydraulic cylinder; 226. a first overflow valve; 227. a second overflow valve; 228. a third overflow valve; 229. a two-position two-way hydraulic control reversing valve; 230. a first check valve; 231. a second one-way valve; 232. a third check valve; 233. a fourth check valve; 234. an auxiliary pump; 235. a third connecting member;

300. a fertilizing device; 310. a fertilizer box; 320. a fertilizer metering mechanism; 321. a container; 322. an upper guide sleeve; 323. a lower guide sleeve; 324. a tongue plate; 325. a lower tongue plate; 326. a second connecting member; 327. a spring; 328. a fertilizer storage port; 329. a fertilizer outlet; 330. fertilizing a pipe; 331. a wedge block; 332. a toggle piece; 333. a fourth connecting member;

400. a soil covering device; 410. a soil collection box; 420. a first connecting member; 430. a connecting rod;

500. a chassis.

Detailed Description

Reference will now be made in detail to the exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, like numbers in different drawings represent the same or similar elements unless otherwise indicated. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with the present application. Rather, they are merely examples of apparatus and methods consistent with certain aspects of the present application, as detailed in the appended claims.

The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. As used in this application and the appended claims, the singular forms "a", "an", and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It should also be understood that the term "and/or" as used herein refers to and encompasses any and all possible combinations of one or more of the associated listed items.

It is to be understood that although the terms first, second, third, etc. may be used herein to describe various information, such information should not be limited to these terms. These terms are only used to distinguish one type of information from another. For example, first information may also be referred to as second information, and similarly, second information may also be referred to as first information, without departing from the scope of the present application. The word "if" as used herein may be interpreted as "at … …" or "when … …" or "in response to a determination", depending on the context.

Referring to fig. 1 to 8, an embodiment of the present invention provides a solid-state deep fertilizer applicator, which may include: the hole digging device 200 is arranged on the rack 100 and comprises a spiral drill 210 and a rotary lifting device 220, and the rotary lifting device 220 drives the spiral drill 210 to rotate and lift; the fertilizer applying device 300 is arranged on the rack 100 and comprises a fertilizer box 310, a fertilizer measuring mechanism 320 for constant fertilizer applying amount and a fertilizer applying pipe 330, wherein the outlet of the fertilizer box 310 is connected with the inlet of the fertilizer measuring mechanism 320, and the outlet of the fertilizer measuring mechanism 320 is connected with the inlet of the fertilizer applying pipe 330; the soil covering device 400 comprises a retractable soil collecting box 410, a first connecting piece 420 and a second connecting rod 430, wherein the first connecting piece 420 is rotatably connected to the rear end of the auger bit 210, one end of the second connecting rod 430 is hinged to the first connecting piece 420, the other end of the second connecting rod 430 is hinged to the inner wall of the soil collecting box 410, and the soil collecting box 410 is sleeved outside the auger bit 210.

The spiral drill 210 is driven to rotate and descend by the rotary lifting device 220, the spiral drill 210 carries a designated operation point to dig a pit downwards, the soil collection box 410 is gradually opened along with the descending of the spiral drill 210 to collect soil thrown by the spiral drill 210, when the pit is dug to a set depth, the spiral drill 210 stops drilling the pit, the spiral drill 210 is reversely rotated and ascended, when the spiral drill 210 is lifted to a set height, the fertilizer box 310 feeds the fertilizer to the fertilizer mechanism 320, the fertilizer flows into the dug pit through the fertilizer application pipe 330, after the fertilizer application action is completed, the spiral drill 210 continuously ascends to drive the soil collection box 410 to be gradually closed and push all the collected soil into the pit, and the deep fertilizer application is completed.

According to the embodiment, the auger bit 210 and the rotary lifting device 220 are adopted to carry out hole digging operation and control lifting, so that holes can be easily opened, and a channel is provided for fertilization. The fertilizer using mechanism 320 can fix the fertilizer amount, accurately control the filling and releasing of the fertilizer and meet the agricultural requirement of quantitative fertilization; the structural design of the soil covering device 400 can overcome the problem of soil adhesion on the wall of the soil collecting platform, and the soil covering operation can be efficiently completed. The scheme provided by the embodiment of the invention overcomes the defect of deep fertilization of orchard granules, and has the advantages of simple structure, accurate control, complete working process, small damage to vegetation soil and the like; can outstanding granule deep fertilization work of accomplishing in the orchard, reduce the cost of labor, work efficiency is high.

In one embodiment of the present invention, the frame 100 is provided with a chassis capable of walking, so that the reworking area can be conveniently moved.

In an embodiment of the present invention, as shown in fig. 3, the auger bit 210 includes an earth cutting blade 211, a positioning drill tip 212, a main shaft 213, and a helical blade 214, wherein the helical blade 214 is fixed on the main shaft 213, the bottom of the helical blade 214 is connected with the earth cutting blade 211, and the positioning drill tip 212 is fixed at the bottom section center of the main shaft 213. Compared with a single-head spiral drill mechanism of a double-head spiral drill, the single-head spiral drill mechanism is simpler, lighter in weight and more energy-saving in the process of hole digging operation.

In an embodiment of the present invention, the rotary lifting device 220 includes: the spiral drilling machine comprises a driving mechanism, a spline shaft 223, a hydraulic pump 224 and a hydraulic cylinder 225, wherein the spline shaft 223 is coupled with the output end of the driving mechanism, and the lower end of the spline shaft 223 is fixedly connected with the spiral drill 210; the cylinder body of the hydraulic cylinder 225 is communicated with the inlet and outlet of the hydraulic pump 224, and the push rod of the hydraulic cylinder 225 drives the spline shaft 223 to move up and down. In particular, the amount of the solvent to be used,

the push rod of the hydraulic cylinder 225 can be sleeved on the upper end of the spline shaft 223 through the third connecting piece 235, the third connecting piece 235 and the spline shaft 223 can be rotatably connected through a bearing, the auger bit 210 rotates under the action of the driving mechanism, although the auger bit 210 has a self-tapping function, the longitudinal driving force is lacked, therefore, the push rod of the hydraulic cylinder 225 is driven to extend through the hydraulic pump 224, and then the push rod acts on the upper end of the spline shaft 223 through the third connecting piece 235, a downward force is applied to the upper end of the spline shaft 223, and therefore the auger bit 210 synchronously moves downwards. The rotary lifting device 220 is hydraulically controlled, can output stable power and can stably control the spline shaft 223 to move up and down.

Further, the drive mechanism includes: the input end of the reduction gearbox is connected with the output end of the power source 221, and the output end of the reduction gearbox is coupled with the spline shaft 223. The power source 221 may be a gasoline engine, and the gasoline engine drives the spline shaft 223 to rotate through a reduction gearbox. The spline shaft 223 drives the hydraulic pump 224 to run, and the hydraulic cylinder 225 is driven to move by oil absorption and pressing of the hydraulic pump 224, so that the spline shaft 223 is pushed to move up and down, and the spiral drill 210 is lifted and lowered.

In an embodiment of the present invention, as shown in fig. 4, the reduction box includes: a housing 2221, an input shaft 2222, a first bevel gear 2223 and a second bevel gear 2224, wherein the input shaft 2222 is supported in the housing 2221 and is driven to rotate by the power source 221; the first bevel gear 2223 is fixed to the input shaft 2222; the second bevel gear 2224 is fitted over the spline shaft 223, and the second bevel gear 2224 is engaged with the first bevel gear 2223. Through the engagement of the first bevel gear 2223 and the second bevel gear 2224, the torque of the input shaft 2222 can be stably transmitted, and a stable transmission ratio is achieved.

Further, the reduction box includes: a third bevel gear 2225, the third bevel gear 2225 is sleeved on the spline shaft 223 and is fixedly connected with the second bevel gear 2224, the third bevel gear 2225 is used for being meshed with the first bevel gear 2223, and the first bevel gear 2223 can only be meshed with one of the second bevel gear 2224 and the third bevel gear 2225. The lifting mode can be freely switched, and the spline shaft 223 is controlled to move up and down.

Further, the reduction gearbox further comprises a clutch, and the clutch drives the second bevel gear 2224 and the third bevel gear 2225 to move up and down, so that one bevel gear is meshed with the first bevel gear 2223. The number of teeth of second bevel gear 2224 and third bevel gear 2225 is different, the number of teeth of second bevel gear 2224 is less, the number of teeth of third bevel gear 2225 is more, when second bevel gear 2224 is engaged with first bevel gear 2223, high-speed rotation is realized, and helical bit 210 can be driven to descend for feeding; when the third bevel gear 2225 is engaged with the first bevel gear 2223, the helical drill 210 is driven to ascend and retreat by rotating at a low speed. The auger bit 210 rotates at a high speed to descend, so that the hole digging time can be reduced, the working efficiency is improved, the auger bit 210 rotates at a low speed to ascend, the damage to the auger bit is reduced, and the service life is prolonged.

Specifically, the clutch may include a fixing part 2226, a first link 2227, and a driving part 2228, where the fixing part 2226 is respectively and fixedly connected to the second bevel gear 2224 and the third bevel gear 2225, one end of the first link 2227 is hinged to the fixing part 2226, the other end is hinged to the driving part 2228, and the driving part 2228 is hinged to the case 2221, and the second bevel gear 2224 and the third bevel gear 2225 slide on the spline shaft 223 by driving the driving part 2228 to rotate, so that engagement switching may be achieved, and a clutch function may be achieved.

In an embodiment of the present invention, as shown in fig. 5, a hydraulic oil path formed by the hydraulic pump 224 and the hydraulic cylinder 225 may further include a first relief valve 226, a second relief valve 227, a third relief valve 228, a two-position two-way pilot-operated directional valve 229, a first check valve 230, a second check valve 231, a third check valve 232, a fourth check valve 233, and an auxiliary pump 234, the hydraulic pump 224 may be a bidirectional variable pump, the hydraulic cylinder 225 and the bidirectional variable pump form a main fluid circuit, and the second relief valve 227, the first check valve 230, the second check valve 231, the third check valve 232, and the fourth check valve 233 form a directional fluid circuit and are connected in parallel to the main fluid circuit. The third spill valve 228 is connected in one-way communication with a two-position, two-way pilot operated directional valve 229, which is connected to the hydraulic cylinder 225. The first relief valve 226 and the auxiliary pump 234 are connected in parallel to the directional flow circuit formed by the second relief valve 227.

The hydraulic cylinder 225 and the bidirectional variable pump form a main fluid circuit, the auger bit rotates at a high speed, and the bidirectional variable pump rotates in a forward direction. The oil feed is greater than the oil discharge through the hydraulic cylinder 225, creating a pressure differential that produces a positive motion. On the contrary, when the auger bit rotates reversely, the bidirectional variable pump is driven to rotate reversely, and the oil discharge amount of the hydraulic cylinder 225 is larger than the oil inlet amount, so that reverse motion is generated. The second overflow valve 227, the first check valve 230, the second check valve 231, the third check valve 232 and the fourth check valve 233 form a directional flow circuit, the first overflow valve 226 and the auxiliary pump 234, the flow rate is controlled through the second overflow valve 227, the overload of the system is prevented, and the oil supplement of the circuit and the pump emptying are realized through the auxiliary pump 234 and the overflow valve 226. The third overflow valve 228 and the two-position two-way pilot operated directional control valve 229 form a one-way flow, and discharge the redundant oil on the oil suction side of the bidirectional variable pump back to the oil tank. When the auger bit 210 is driven by the gasoline engine to rotate at a high speed, the bidirectional variable pump is driven by the bit to rotate in the forward direction, hydraulic oil is injected into the rodless cavity of the hydraulic cylinder 225 through the left oil path, at the moment, the oil inlet of the hydraulic cylinder 225 is larger than the oil discharge, pressure difference is generated, the piston is pushed to move outwards, and the bit stably drills downwards under the drive of the piston to perform hole digging operation. When the auger bit 210 rotates reversely, the bidirectional variable pump is driven to rotate reversely, at this time, the oil supply direction is changed, hydraulic oil is injected into the rod cavity of the hydraulic cylinder 225 through the right oil path, the oil discharge amount of the double-acting cylinder is greater than the oil inlet amount, the piston is pushed back inwards, and the auger bit is driven to lift back.

The hydraulic cylinder 225 and the bidirectional variable pump form a main fluid loop, which generates pressure to control lifting. The flow stability of the hydraulic circuit is enhanced by the first relief valve 226, the second relief valve 227 and the third relief valve 228, and the oil is replenished to the circuit by the auxiliary pump 234. The hydraulic device can quickly and stably control the direction and the movement of the drill bit.

In order to prevent pump suction and smooth movement of the hydraulic cylinder 225, a first relief valve 226 and a second relief valve 2267 are also provided in the hydraulic circuit,

in an embodiment of the present invention, as shown in fig. 6 and 7, the fertilizer measuring mechanism 320 includes: the container 321, an upper guide sleeve 322, a lower guide sleeve 323, an upper tongue plate 324, a lower tongue plate 325 and a second connecting piece 326, wherein the upper end and the lower end of the container 321 are both open; the upper guide sleeve 322 is fixed on a fertilizer storage port 328 at the upper end of the container 321; the lower guide sleeve 323 is fixed at a fertilizer outlet 329 at the lower end of the container 321; the upper tongue plate 324 is slidably disposed in the upper guide sleeve 322, and has a first opening and a first shielding portion; the lower tongue plate 325 is slidably arranged in the lower guide sleeve 323 and is provided with a second opening and a second shielding part; two ends of the second connecting piece 326 are fixedly connected with the upper tongue plate 324 and the lower tongue plate 325 respectively; when the first opening is communicated with the fertilizer storage opening 328 of the container 321, the second blocking part blocks the fertilizer outlet 329 of the container 321, and when the first blocking part blocks the fertilizer storage opening 328 of the container 321, the second opening is communicated with the fertilizer outlet 329 of the container 321, so that the fertilizing amount of each time is equal to the volume of the container 321, and the fertilizing is performed smoothly.

Further, the fertilizer metering mechanism 320 further includes: a spring 327 and a telescopic driving assembly, wherein one end of the spring 327 is connected with the container 321, and the other end is connected with the second connecting piece 326. The telescopic driving assembly pushes the second connector 326 towards the container 321, the spring 327 is compressed, and when the telescopic driving assembly is disconnected from the pushing force, the spring 327 pushes the container back to the original position, the container 321 is communicated with the fertilizer box 310 and disconnected from the fertilizer pipe 330, and the fertilizer in the fertilizer box 310 flows into the container 321 for the next fertilization.

Further, the retraction driving assembly comprises a wedge-shaped block 331, a shifting member 332 and a fourth connecting member 333, the wedge-shaped block 331 is fixed on the second connecting member 326, the fourth connecting member 333 is fixed on the third connecting member 235, the shifting member 332 is mounted on the fourth connecting member 333, the wedge-shaped block 331 is matched with the shifting member 332, the shifting member 332 realizes lifting movement along with the third connecting member 235, in the lifting process, when the shifting member 332 is in contact with the wedge-shaped block 331, in the movement of the shifting member 332 moving upwards continuously, the wedge-shaped block 331 is pushed to drive the second connecting member 326 to compress the spring 327, the fertilizer storage port 328 starts to be closed gradually, the fertilizer discharge port 329 starts to be opened gradually, and fertilizer in the container 321 is discharged to the fertilizer application pipe 330; in the descending process, in the movement of downward movement of the toggle piece 332, the wedge-shaped block 331 is gradually pushed to be reduced, the compressed spring 327 starts to be gradually restored, the fertilizer storage port 328 starts to be gradually opened, the fertilizer discharge port 329 starts to be gradually closed, and fertilizer gradually enters the container 321.

In order to reduce the abrasion caused by the contact between the wedge-shaped block 331 and the toggle member 332, a roller may be installed on the toggle member 332.

It should be noted that, in the above ascending process and descending process, the wedge 331 and the toggle member 332 are always in contact, and certainly, the toggle member 332 may also cross the wedge 331 after ascending to the topmost end, and at this time, the toggle member 332 needs to be pivoted on the fourth connecting member 333 and needs a limiting member to limit the rotation range of the toggle member 332, so that when the toggle member 332 and the wedge 331 are in contact, a supporting force can be provided for the toggle member 332, and after crossing the wedge 331, when the toggle member 332 is about to descend along with the fourth connecting member 333, due to the pivot, the toggle member can rotate and wind back below the wedge 331.

In an embodiment of the present invention, as shown in fig. 8 and 9, the soil covering device 400 includes a retractable soil collecting box 410, a first connecting member 420, and a second connecting rod 430, the first connecting member 420 is rotatably connected to the rear end of the auger bit 210 to synchronously displace the soil collecting box 410 and the auger bit 210, one end of the second connecting rod 430 is hinged to the first connecting member 420, the other end is hinged to the inner wall of the soil collecting box 410, and the soil collecting box 410 is sleeved outside the auger bit 210. When the auger bit 210 descends under the driving of the spline shaft 223, the first connecting piece 420 moves downward along with the drill shaft, the second connecting rod 430 is pushed downward by the driving of the hinge, and the soil collecting box 410 is driven to slide outward, so that the soil collecting box 410 is horizontally opened, and soil (indicated by black solid circles) thrown out by digging holes is continuously collected in the soil collecting box 410. After the hole is dug, the spiral blade 214 of the drill head rises with the soil, and the fertilizer measuring mechanism 320 discharges the fertilizer after the drill head leaves the soil surface (white hollow circles indicate fertilizer application particles). The first connecting piece 420 ascends along with the auger bit 210 to force the second connecting rod 430 to pull the soil collection box 410 to doze towards the hole, the soil collection box 410 can be horizontally opened and closed along with the movement of the auger bit 210, and the collected soil can be pushed back to the excavated hole after fertilization is finished.

During operation, a driver drives the deep fertilizer applicator to a designated operation point, the gasoline engine is started, the output rotating speed is reduced through the reduction gearbox, the transverse transmission of the output shaft of the tractor is changed into longitudinal transmission through bevel gear transmission in the reduction gearbox, when the first bevel gear 2223 is meshed with the first bevel gear 2223, the spline shaft 223 rotates at a high speed to drive the hydraulic pump 224 to work, the hydraulic cylinder 225 contracts to push the spiral drill 210 to descend, and the soil collection box 410 gradually expands along with the descent of the spiral drill 210 to collect the thrown soil. When the auger is to be driven to a set depth, the driver 2228 is rotated to shift the engagement of the second bevel gear 2224 with the first bevel gear 2223 to the engagement of the third bevel gear 2225 with the first bevel gear 2223 (i.e., shifting), the auger bit 210 is reversed, the hydraulic pump 224 is also reversed, and the hydraulic cylinder 225 is caused to push the auger bit 210 in the reverse direction and pull it upward. When the auger head 210 is lifted to a predetermined height, the fertilizer outlet 329 is opened and the fertilizer storage 328 is closed, and fertilizer flows into the dug hole along the fertilizer pipe. After the fertilization is completed, the auger bit 210 continues to rise, the container 321 is pulled back by the spring 327, the fertilizer outlet 329 is closed, and the fertilizer storage 328 is opened to prepare for the next fertilization. As the auger bit 210 rises, it causes the soil collection bin 410 to gradually close and push the lifted soil all the way into the hole. As the auger bit 210 continues to rise to the highest point, the drive 2228 rotates to disengage the bevel gears and the bit stops rotating up. And then, the driver drives the trolley to the next fertilizer application point, the soil compacting device at the tail of the vehicle can compact loose soil, and the hole digging, fertilizer application and soil covering process is finished.

Other embodiments of the present application will be apparent to those skilled in the art from consideration of the specification and practice of the disclosure disclosed herein. This application is intended to cover any variations, uses, or adaptations of the invention following, in general, the principles of the application and including such departures from the present disclosure as come within known or customary practice within the art to which the invention pertains. It is intended that the specification and examples be considered as exemplary only, with a true scope and spirit of the application being indicated by the following claims.

It will be understood that the present application is not limited to the precise arrangements described above and shown in the drawings and that various modifications and changes may be made without departing from the scope thereof. The scope of the application is limited only by the appended claims.

Claims

1. A solid-state fertilizer deep fertilizing machine is characterized by comprising:

a frame;

2. The solid state fertilizer deep applicator of claim 1, wherein a walkable chassis is mounted on the frame.

3. Solid state fertilizer deep applicator according to claim 1, characterized in that said rotary lifting means comprise:

a drive mechanism and a hydraulic pump;

4. Solid state fertilizer deep applicator according to claim 3, characterized in that said driving mechanism comprises:

a power source; and

5. The solid state fertilizer deep applicator of claim 4, wherein the reduction gearbox comprises:

a box body;

the first bevel gear is fixed on the input shaft; and

6. The solid state fertilizer deep applicator of claim 5, wherein the reduction gearbox comprises:

7. The solid fertilizer deep applicator of claim 1, wherein the fertilizer metering mechanism comprises:

the upper end and the lower end of the container are both open;

8. The solid state fertilizer deep applicator of claim 7, wherein the fertilizer metering mechanism further comprises:

9. The solid fertilizer deep applicator of claim 1, wherein the hydraulic pump is a bidirectional variable pump.

10. The solid state fertilizer deep applicator of claim 9 wherein the first inlet and outlet of the bidirectional variable pump are in communication with the rod end of the hydraulic cylinder and the second inlet and outlet are in communication with the rodless end of the hydraulic cylinder.