CN107852903B

CN107852903B - Soil-dressing spray-seeding vehicle

Info

Publication number: CN107852903B
Application number: CN201711366228.2A
Authority: CN
Inventors: 胡学军; 陶伏山
Original assignee: Hunan Sanqieryi Ecological Protection Co ltd
Current assignee: Hunan Sanqieryi Ecological Protection Co ltd
Priority date: 2017-12-18
Filing date: 2017-12-18
Publication date: 2023-08-08
Anticipated expiration: 2037-12-18
Also published as: CN107852903A

Abstract

The invention discloses a soil-alienating spraying and seeding vehicle, which comprises a spraying and seeding vehicle body (4), wherein a screening device (1), a storage stirring device (2), a spraying device (3), a controller (5) and a power system (6) are arranged on the spraying and seeding vehicle body (4), the discharge end of the screening device (1) is communicated with the feed end of the storage stirring device (2), the discharge end of the storage stirring device (2) is communicated with the feed end of the spraying device (3), the power system (6) respectively provides power for the screening device (1), the storage stirring device (2) and the spraying device (3), and the controller (5) is respectively electrically connected with the screening device (1), the storage stirring device (2), the spraying device (3) and the power system (6). The soil-alighting spraying and seeding vehicle is flexible to move, has compact structure and strong applicability, and has obvious advantages compared with the existing soil-alighting spraying and seeding equipment especially in the mine and mountain wind power plant, expressway, railway and other greening projects.

Description

Soil-dressing spray-seeding vehicle

Technical Field

The invention relates to the technical field of soil-dressing spray seeding equipment, in particular to a soil-dressing spray seeding vehicle.

Background

The soil-dressing spray-seeding technique is characterized by that it uses water as carrier, and utilizes the water as carrier, and mixes the seeds of grass, flowers and trees, etc. with fertilizer, high-molecular adhesive and water-retaining agent, at the same time can mix a large quantity of organic matters for improving soil, such as wood dust, paper fibre, cotton fibre and straw, etc., and adds a proper quantity of yellow loam, red loam, sandy loam, clay or partial strong wind fossil soil-sandwiched soil, and uniformly stirs them to form large-proportion high-concentration slurry, then uniformly sprays them on the target slope surface. Is an advanced vegetation reconstruction technology introduced from abroad. The technology is generally used in Europe, north America and Japan at the end of 90 s, the academy of traffic department introduces a soil spraying technology from Japan, and is rapidly popularized and used in the national highway greening industry, and the technology becomes an effective vegetation reconstruction method for protecting vegetation on high-speed highway (iron) roadside slopes, protecting river levee biology and reconstructing large-scale green land.

The main equipment of the foreign soil spraying and seeding is a key for influencing the construction quality and efficiency. At present, the domestic and international foreign soil spraying and seeding equipment mostly adopts a towed or vehicle loading type, the vehicle loading type foreign soil spraying and seeding equipment is flexible to move, the applicability is very strong, and the advantages are more obvious especially in mine and mountain wind power plants, high-speed construction roads, railways and other re-greening projects. The existing soil-dressing spray seeding equipment mainly has the following defects: (1) The maximum particles of the soil are required to be less than or equal to 10mm, the limitation on soil selection is large, and the utilization rate of the soil is low; (2) The screening device is not integrated on the spray seeding vehicle, and a rotary screen, a vibrating screen and other independent screening machines are adopted, so that the size is large, the efficiency is low, the movement flexibility is poor, wet soil cannot be screened, the soil screening efficiency is low, the screening effect is poor, and the utilization rate of soil is low; (3) The paddle type stirring blades or the integral spiral blades are adopted, wherein the paddle type stirring blades have the advantages of low cost and high efficiency, but the slurry is easy to sink; when the integral spiral blade is adopted, the slurry is not easy to sink, but the stirring efficiency is low, and the maintenance is difficult; (4) adopting a polygonal material box, and easily collecting materials; (5) Most stirring is mechanical, and the driving structure is complex and low in power; or the independent power source is used for driving, the structure is complex, the reliability is low, and the maintenance cost is high; (6) And the single injection mechanism is adopted, so that only single-side operation is realized, and the flexibility is not enough.

Disclosure of Invention

Aiming at the defects and shortcomings in the background art, the invention aims to provide the soil-alienating spray seeding vehicle which is flexible to move, compact in structure and high in applicability.

In order to solve the technical problems, the technical scheme provided by the invention is as follows:

the utility model provides a visitor soil spray seeding car, includes the spray seeding car body, be equipped with screening plant, storage agitating unit, injection apparatus, controller and driving system on the spray seeding car body, screening plant's discharge end is linked together with storage agitating unit's feed end, and storage agitating unit's discharge end is linked together with injection apparatus's feed end, driving system provides power for screening plant, storage agitating unit and injection apparatus respectively, the controller is connected with screening plant, storage agitating unit, injection apparatus and driving system electricity respectively for control screening plant, storage agitating unit and injection apparatus carry out screening operation, stirring operation and injection operation respectively and control braking force system provides power for screening plant, storage agitating unit and injection apparatus. The power system consists of a diesel engine, a special slurry pump and the like; the hydraulic system consists of an oil pump, a hydraulic valve, a motor, an oil cylinder, a hydraulic pipeline and the like which are directly arranged at the diesel oil power take-off port.

Foretell guest soil spraying and seeding car, preferably, screening plant includes the screening fill, the below of screening fill is equipped with screening mechanism, and screening mechanism's one end is equipped with the discharge gate, screening mechanism includes screening drive arrangement and many screening axles of locating the below of screening fill side by side, the epaxial a plurality of screening gears that are provided with along axial interval of screening, screening drive arrangement passes through the equidirectional rotation of many screening axles of chain drive, many screening axles are from being close to the one end of discharge gate is the setting of inclining to the other end.

In the soil-dressing spray-seeding vehicle, preferably, the bottom of the feed box is arc-shaped.

In the soil-alienating spraying and seeding vehicle, preferably, two chain wheels are arranged at the end part of each screening shaft, the number of teeth of the two chain wheels on the same screening shaft is the same, and the number of teeth of the chain wheels on adjacent screening shafts is different.

In the soil-dressing spray-seeding vehicle, preferably, each sieving gear is provided with at least one long sieving tooth, and the length ratio of the long sieving tooth to the short sieving tooth on the sieving gear is (1.5-1.8): 1; the long screening teeth on the adjacent screening gears are arranged in a staggered mode, and the long screening teeth on the plurality of screening gears are spirally arranged along the axial direction of the screening shaft.

According to the soil-alighting spraying and seeding vehicle, preferably, the discharging gate is provided with the discharging gate, the screening hopper is provided with the discharging oil cylinder for opening or closing the discharging gate, the bottom of the discharging oil cylinder is hinged to the screening hopper, and the piston rod of the discharging oil cylinder is hinged to the discharging gate.

In the soil-dressing spray-seeding vehicle, the number of the screening shafts is preferably 4-10.

In the soil-dressing spray-seeding vehicle, preferably, the screening driving device is a hydraulic motor or a gear motor.

Foretell alien soil spray seeding car, preferably, storage agitating unit locates the below of screening mechanism is equipped with assembled stirring vane in the storage agitating unit, assembled stirring vane includes (mixing) shaft and multi-disc locating blade subassembly on the (mixing) shaft, the blade subassembly includes the staple bolt, set firmly stirring branch on the staple bolt, be equipped with first blade and second blade on the stirring branch, first blade and second blade are crossing to be 90 contained angles, and the outline of second blade is the arc, and multi-disc blade subassembly is installed on the (mixing) shaft with detachable mode along the axial of (mixing) shaft through the staple bolt, crisscross contained angle that is between the adjacent blade subassembly.

In the soil-alienating spray seeding vehicle, preferably, the plurality of blade assemblies are divided into two groups, wherein one group of blade assemblies are arranged on the stirring shaft from the left end to the right end of the stirring shaft at equal intervals, and an included angle of 120 degrees is formed between every two adjacent blade assemblies; the other group of blade components are equidistantly arranged on the stirring shaft from the right end to the left end of the stirring shaft, and an included angle of 120 degrees is formed between every two adjacent blade components.

In the soil-dressing spray seeding vehicle, preferably, the number of the blade assemblies is 6-18, and each group comprises 3-9 blade assemblies.

In the soil-alienating spray seeding vehicle, preferably, two first blades of adjacent blade assemblies in the same group are not parallel; the two second blades of the adjacent blade assemblies in the same group are not parallel; the second blades in each group of blade assemblies are spirally arranged along the axial direction of the stirring shaft, and the spiral directions of the second blades in the two groups of blade assemblies are opposite.

In the soil-alienating spray seeding vehicle, preferably, the first blade intersects with the cross section of the stirring shaft to form an included angle, and the first blade intersects with the longitudinal axis of the stirring shaft to form an included angle; the second blade and the first blade are mutually perpendicular; and folded edges are arranged on two sides of the second blade.

In the soil-covering spraying and seeding vehicle, preferably, the two sets of spraying devices are respectively arranged at two sides of the spraying and seeding vehicle body, and each set of spraying device comprises a nozzle.

Compared with the prior art, the invention has the advantages that:

(1) The foreign soil spraying and seeding vehicle integrates screening, stirring and spraying into one spraying and seeding vehicle, adopts a set of power system to provide power for screening, stirring and spraying, has flexible movement, compact structure and strong applicability, and is particularly suitable for being applied to the re-greening engineering of mines and mountain wind power plants, highways, railways and the like.

(2) According to the screening device of the foreign soil spraying and seeding vehicle, the screening shafts are arranged side by side below the screening hopper, and are arranged in an upward inclination mode from one end close to the discharge port to the other end, and when screening is performed, the screening driving device drives the screening shaft to rotate in a direction away from the discharge port, so that the whole raw soil in the screening hopper has a trend of upward movement, and the screening efficiency and the screening effect of the screening device are greatly improved.

(3) The number of teeth of the chain wheels on the adjacent screening shafts is set to be different, the adjacent screening shafts are connected with the screening driving device through a chain, and when screening is carried out, the rotating speeds of the adjacent screening shafts are different, so that the stirring effect on raw soil in the screening hopper is further improved, and the screening effect is further improved.

(4) According to the invention, at least one long screening tooth is arranged on the screening gear, so that when wet soil with larger water content is screened, the long screening tooth can effectively destroy wet soil blockage, and the blocked wet soil in a gear gap is periodically cleaned, so that the screening effect and the screening efficiency of the screening device are further improved.

(5) Compared with the screening device of the existing alien soil spraying and seeding machine, the screening device of the alien soil spraying and seeding machine has the advantages of compact structure, high screening efficiency, good screening effect, high raw soil utilization rate and the like, can efficiently screen out soil with the thickness of less than 30mm, has good screening effect on wet soil with the water content of 30-60%, can save soil, can reduce the requirement on raw soil, and can meet the construction in rainy seasons.

(6) The stirring device in the soil-alienating spray seeding vehicle adopts the assembled stirring blades, the assembled stirring blades are divided into two groups by adopting the plurality of first blades and the plurality of second blades which are mutually staggered, the second blades in each group are spirally arranged along the axis of the stirring shaft, the second blades in the two groups are opposite in rotation direction, and the assembled stirring blades have small axial force, good stirring effect and high stirring efficiency.

(7) According to the assembled stirring blade in the soil-alighting spraying and seeding vehicle, the stirring support rod, the first blade and the second blade are detachably arranged on the stirring shaft through the anchor ear, and the blade assembly is fastened and connected with the stirring shaft through the bolts, so that the assembled stirring blade is convenient to assemble, disassemble and maintain.

(8) According to the assembled stirring blade in the alien soil spraying and seeding vehicle, the outer contour of the second blade is arc-shaped, and the second blade is matched with the material box with the arc-shaped bottom, so that the second blade can be better attached to the inner wall of the storage stirring device for stirring, and the alien soil spraying and seeding vehicle has no dead angle, no accumulated materials and easy cleaning; simultaneously, the stirring efficiency is greatly improved, and the situations of slurry deposition and slurry pump blockage are effectively avoided.

In summary, the alien soil spraying and seeding vehicle has the advantages of high soil utilization rate, high screening efficiency, good screening effect, compact structure, good movement flexibility, good slurry stirring effect, difficult slurry deposition, convenient maintenance of stirring blades, wide application range and the like, can efficiently screen out soil with the thickness of less than 30mm, has low requirements on raw soil, has good screening effect on wet soil with the water content of 30-60%, and meets the construction requirements in rainy seasons.

Drawings

Fig. 1 is a schematic structural view of the soil-alienating spray seeding vehicle of the present invention.

Fig. 2 is a schematic cross-sectional view taken along the A-A plane in fig. 1.

Fig. 3 is a schematic top view of fig. 1.

Fig. 4 is a schematic structural view of a screening device in the alien soil spraying and seeding vehicle.

Fig. 5 is a left side schematic view of fig. 4.

Fig. 6 is a schematic bottom view of fig. 4.

Fig. 7 is a schematic top view of fig. 4.

Fig. 8 is a schematic structural view of a screening shaft in the alien soil spraying and seeding vehicle of the present invention.

Fig. 9 is a schematic structural view of an assembled stirring blade in the alien earth spraying and seeding vehicle.

Fig. 10 is a left side schematic view of fig. 9.

Fig. 11 is a partial enlarged view at B in fig. 9.

Legend description:

1. a screening device; 2. a storage stirring device; 3. a spraying device; 4. a spray seeding vehicle body; 5. a controller; 6. a power system; 101. screening hopper; 102. a screening driving device; 103. a sieving shaft; 104. a chain; 105. a discharge door; 106. a discharging oil cylinder; 207. a stirring shaft; 208. a blade assembly; 301. a nozzle; 1031. screening gears; 1032. a sprocket; 10311. long screening teeth; 2081. a hoop; 2082. stirring support rods; 2083. a first blade; 2084. a second blade; 2085. and (5) flanging.

Detailed Description

The present invention will be described more fully hereinafter with reference to the accompanying drawings, in which preferred embodiments are shown, for the purpose of illustrating the invention, but the scope of the invention is not limited to the specific embodiments shown.

It will be understood that when an element is referred to as being "fixed, affixed, connected, or in communication with" another element, it can be directly fixed, affixed, connected, or in communication with the other element or intervening elements may be present.

Unless defined otherwise, all technical and scientific terms used hereinafter have the same meaning as commonly understood by one of ordinary skill in the art. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the scope of the present invention.

Examples:

as shown in fig. 1 to 11, the soil-alienating spray seeding vehicle of the invention comprises a spray seeding vehicle body 4, wherein a screening device 1, a storage stirring device 2, a spraying device 3, a controller 5 and a power system 6 are arranged on the spray seeding vehicle body 4. The discharge end of the screening device 1 is communicated with the feed end of the material storage stirring device 2. The discharge end of the storage stirring device 2 is communicated with the feed end of the injection device 3. The power system 6 provides power for the sieving device 1, the material storage stirring device 2 and the injection device 3 respectively. The controller 5 is electrically connected with the sieving device 1, the material storage stirring device 2, the spraying device 3 and the power system 6 respectively, and is used for controlling the sieving device 1, the material storage stirring device 2 and the spraying device 3 to perform sieving operation, stirring operation and spraying operation respectively and controlling the power system 6 to provide power for the sieving device 1, the material storage stirring device 2 and the spraying device 3. The screening device 1 is used for screening soil, separating out oversized soil, stones, tree roots or other sundries which cannot be screened through the gaps between teeth, so that the soil reaches a proper size; the storage stirring device 2 is used for storing the sieved soil, and mixing and stirring the soil, seeds such as grass seeds, flowers, forests and the like, fertilizer, polymer adhesive, water-retaining agent, soil conditioner and the like to form slurry; the spraying device 3 is used for spraying the slurry formed by stirring onto a target slope surface for ecological re-greening. The soil-alienating spray seeding vehicle integrates screening, stirring and spraying onto one spray seeding vehicle, adopts a set of power system 6 to provide power for screening, stirring and spraying, and has flexible movement, compact structure and strong applicability.

In this embodiment, the screening device 1 includes a screening bucket 101, a screening mechanism is disposed below the screening bucket 101, and a discharge port is disposed at one end of the screening mechanism. The screening mechanism comprises a screening drive 102 and a plurality of screening shafts 103 arranged side by side below the screening hopper 101. A plurality of sieving gears 1031 are provided on the sieving shaft 103 at intervals in the axial direction. The screening driving device 102 drives a plurality of screening shafts 103 to rotate in the same direction through a chain 104. The screening shafts 103 are arranged in an upward-inclined manner from one end close to the discharge port to the other end. This screening plant 1 is when screening, and screening axle 103 rotates to the one side of keeping away from the discharge gate for the former soil in the screening bucket 101 has the trend of upward movement, has improved screening efficiency and screening effect greatly, has improved former soil utilization ratio. The soil spraying and seeding vehicle can efficiently screen out soil below 30mm, and has low requirements on original soil.

As shown in fig. 8, in this embodiment, two sprockets 1032 are provided at the end of each sieving shaft 103, the number of teeth of two sprockets 1032 on the same sieving shaft 103 is the same, and the number of teeth of sprockets 1032 on adjacent sieving shafts 103 is different. In this way, the rotation speeds of the adjacent screening shafts 103 are different when the adjacent screening shafts rotate, so that the stirring effect on the raw soil in the screening hopper 101 is further improved, and the screening effect of the screening device is further improved. At least one long screening tooth 10311 is arranged on each screening gear 1031, the long screening teeth 10311 on the adjacent screening gears 1031 are arranged in a staggered mode, and the long screening teeth 10311 on the plurality of screening gears 1031 are spirally arranged along the axial direction of the screening shaft 103. The screening teeth on the screening gears 1031 are designed in unequal length, long screening teeth 10311 are arranged on each screening gear 1031, wet soil blockage can be destroyed by the long screening teeth 10311, blocked wet soil in gear gaps is cleaned periodically, screening effect and screening efficiency are further improved, and the foreign soil spraying and seeding vehicle is suitable for screening wet soil with high water content and meets construction requirements in rainy seasons.

In this embodiment, as shown in fig. 5, a discharge door 105 is disposed at the discharge port, a discharge cylinder 106 for opening or closing the discharge door 105 is mounted on the screening bucket 101, the bottom of the discharge cylinder 106 is hinged on the screening bucket 101, and a piston rod of the discharge cylinder 106 is hinged with the discharge door 105. The number of the sieving shafts 103 can be adjusted according to actual construction conditions and different requirements on sieving capacity, and 4-10 sieving shafts 103 are preferably adopted. While the screening driving means 102 preferably employs a gear motor or a hydraulic motor.

In this embodiment, screening mechanism's below side is located to storage agitating unit 2, be equipped with assembled stirring vane in the storage agitating unit 2, assembled stirring vane includes (mixing) shaft 207 and multi-disc blade assembly 208 of locating on the (mixing) shaft 207, blade assembly 208 includes staple bolt 2081, stirring branch 2082 has been set firmly on the staple bolt 2081, be equipped with first blade 2083 and second blade 2084 on the stirring branch 2082, first blade 2083 and the crossing 90 contained angles that are of second blade 2084, the outline of second blade 2084 is the arc, multi-disc blade assembly 208 passes through staple bolt 2081 and installs on the (mixing) shaft 207 with detachable mode along the axial of (mixing) shaft 207, crisscross contained angle that is between the adjacent blade assembly 208. The outline of second blade 2084 is the arc, with storage agitating unit 2's bottom shape phase-match, the inner wall of storage agitating unit 2 can be pressed close to better to second blade 2084 when the stirring, has further improved the stirring effect, has effectively avoided the deposit of thick liquids. The multi-blade assembly 208 is detachably mounted on the stirring shaft 207 along the axial direction of the stirring shaft 207 through the anchor ear 2081, the anchor ear 2081 is in fastening connection with the stirring shaft 207 through bolts, and the assembled stirring blade in the soil-shifting spray seeding vehicle is convenient to assemble and disassemble and convenient to maintain.

In this embodiment, as shown in fig. 9, the blade assemblies 208 are divided into two groups, wherein one group of blade assemblies 208 is installed on the stirring shaft 207 from the left end to the right end of the stirring shaft 207 at equal intervals, and an included angle of 120 ° is formed between adjacent blade assemblies 208. Another set of blade assemblies 208 are mounted on stirring shaft 207 at equal intervals from the right end to the left end of stirring shaft 207, with adjacent blade assemblies 208 being angled at 120 °. With such an arrangement, the stirring efficiency of the stirring blade can be further improved. The number of blade assemblies 208 may be set according to the actual production situation, and is preferably 6 to 18, wherein each group includes 3 to 9 blade assemblies 208.

In the assembled stirring vane, the two first vanes 2083 of adjacent vane assemblies 208 in the same group are not parallel. Nor are there any parallelism between two second blades 2084 of adjacent blade assemblies 208 in the same set. The blade assemblies 208 in the same group are arranged in a way that the blade assemblies 208 in each group are rotated at equal intervals by 120 degrees along the stirring shaft 207, the blade assemblies 208 in each group form a spiral shape, and the rotation directions of the blade assemblies 208 in the two groups are opposite. The second blades 2084 of each set of blade assemblies 208 are spirally disposed along the axial direction of the stirring shaft 207, and the second blades 2084 of the two sets of blade assemblies 208 are spirally opposite in direction. Therefore, the assembly type stirring blade has small axial force, good stirring effect and high stirring efficiency.

In the assembled stirring blade, L-shaped folded edges 2085 are arranged on two sides of a first blade 2083. Therefore, for the fluid with small viscosity, the turbulence effect can be improved, the fluid flows in a state of revolving around the axis, and meanwhile, the stirring effect and stirring efficiency are further improved due to the effect of pushing to the left and right sides.

In the assembled stirring vane, two sets of spraying devices 3 are arranged, the two sets of spraying devices 3 are respectively arranged on two sides of the spray seeding vehicle body 4, and each set of spraying device 3 comprises a nozzle 301. In this way, the target slopes on both sides of the vehicle body can be conveniently and simultaneously or selectively sprayed.

The working principle of the soil-alienating spray seeding vehicle is as follows:

raw soil is added into the screening bucket 101, the screening driving device 102 is started to drive the screening shafts 103 to rotate anticlockwise in the same direction (rotate in the direction away from the discharge hole), soil meeting the size requirement is filled in the gap between the screening gears 1031, and the screening gears 1031 drive the soil to fall down when the soil rotates below, and as the screening shafts 103 are arranged in an upward inclination way from one end close to the discharge hole to the other end, the raw soil in the screening bucket 101 has a tendency of upward movement as a whole, and the screening efficiency is improved; when the raw soil is wet soil with higher water content, the long screening teeth 10311 on the screening gear 1031 periodically destroy wet soil blockage in the gear gap, and clean the blocked wet soil; the excessive-sized soil, stones, tree roots or other sundries which cannot be screened through the gaps between the teeth are mixed in the raw soil, roll in the screening hopper 101, the reverse screening driving device 102 enables the screening shafts 103 to rotate clockwise (rotate towards the direction of the discharge port), the discharge port is opened, and the residual slag which cannot be screened in the screening hopper 101 (the excessive-sized soil, stones, tree roots or other sundries which cannot be screened through the gaps between the teeth) is discharged out of the screening hopper 101; the sieved soil falls into the storage stirring device 2, and seeds such as grass seeds, flowers, forests and the like, fertilizer, polymer binder, water-retaining agent, soil conditioner and the like are added, mixed and stirred to form slurry; and then spraying the slurry formed by stirring on a target slope by a spraying device 3 to perform ecological re-greening.

The foreign soil spraying and seeding vehicle has the advantages of high screening efficiency, good screening effect, high raw soil utilization rate, compact structure, good moving flexibility, good slurry stirring effect, difficult slurry deposition, convenient maintenance of stirring blades and wide application range. Can be highly efficientThe soil with the grain size less than 30mm is sieved, and particularly has a good sieving effect on wet soil with the water content of 30% -60%. The screening device of the foreign soil spray seeding vehicle screens dry raw soil which can reach 20-30 m per hour ³ The utilization rate of undisturbed soil availability can reach 90%; wet soil with the screening water content of 30-60% can reach 8-10 m per hour ³ The utilization rate of undisturbed soil availability can reach 80%; can save the soil and reduce the requirement on undisturbed soil, and can meet the construction in rainy season.

The above description is only of the preferred embodiments of the present invention and is not intended to limit the present invention, but various modifications and variations can be made to the present invention by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The utility model provides a foreign soil spraying and seeding vehicle, includes spraying and seeding vehicle body (4), its characterized in that, be equipped with screening plant (1), storage agitating unit (2), injection apparatus (3), controller (5) and driving system (6) on spraying and seeding vehicle body (4), the discharge end of screening plant (1) is linked together with the feed end of storage agitating unit (2), and the discharge end of storage agitating unit (2) is linked together with the feed end of injection apparatus (3), driving system (6) provide power for screening plant (1), storage agitating unit (2) and injection apparatus (3) respectively, controller (5) are connected with screening plant (1), storage agitating unit (2), injection apparatus (3) and driving system (6) electricity respectively;

the screening device (1) comprises a screening hopper (101), a screening mechanism is arranged below the screening hopper (101), one end of the screening mechanism is provided with a discharge hole, the screening mechanism comprises a screening driving device (102) and a plurality of screening shafts (103) which are arranged below the screening hopper (101) side by side, a plurality of screening gears (1031) are arranged on the screening shafts (103) along the axial direction at intervals, the screening driving device (102) drives the screening shafts (103) to rotate in the same direction through a chain (104), and the screening shafts (103) are arranged in an upward inclination mode from one end close to the discharge hole to the other end;

two chain wheels (1032) are arranged at the end part of each screening shaft (103), the number of teeth of the two chain wheels (1032) on the same screening shaft (103) is the same, and the number of teeth of the chain wheels (1032) on adjacent screening shafts (103) is different;

at least one long screening tooth (10311) is arranged on each screening gear (1031); the length ratio of the long screening teeth (10311) to the short screening teeth on the screening gear (1031) is (1.5-1.8): 1; the long screening teeth (10311) on the adjacent screening gears (1031) are arranged in a staggered mode, and the long screening teeth (10311) on the plurality of screening gears (1031) are spirally arranged along the axial direction of the screening shaft (103);

the utility model discloses a screening mechanism, including screening mechanism, material storage agitating unit (2) are located the below of screening mechanism is equipped with assembled stirring vane in material storage agitating unit (2), assembled stirring vane includes (207) and multi-disc locating blade subassembly (208) on (207) stirring axle, blade subassembly (208) are including staple bolt (2081), stirring branch (2082) have been set firmly on staple bolt (2081), be equipped with first blade (2083) and second blade (2084) on stirring branch (2082), crossing 90 contained angles that are of first blade (2083) and second blade (2084), the outline of second blade (2084) is the arc, and the workbin bottom is with second blade (2084) assorted convex, and multi-disc blade subassembly (208) are installed on (207) in the detachable mode along the axial of (207) of staple bolt (2081), are the contained angle between adjacent blade subassembly (208).

2. The earth-moving spray vehicle of claim 1, wherein: the discharging port is provided with a discharging door (105), a discharging oil cylinder (106) for opening or closing the discharging door (105) is arranged on the screening hopper (101), the bottom of the discharging oil cylinder (106) is hinged on the screening hopper (101), and a piston rod of the discharging oil cylinder (106) is hinged with the discharging door (105).

3. The earth-moving spray vehicle of claim 1, wherein: the blade assemblies (208) are divided into two groups, wherein one group of blade assemblies (208) are arranged on the stirring shaft (207) from the left end to the right end of the stirring shaft (207) at equal intervals, and an included angle of 120 degrees is formed between every two adjacent blade assemblies (208); the other group of blade assemblies (208) are arranged on the stirring shaft (207) from the right end to the left end of the stirring shaft (207) at equal intervals, and an included angle of 120 degrees is formed between every two adjacent blade assemblies (208).

4. The earth-moving spray vehicle of claim 1, wherein: non-parallel between two first blades (2083) of adjacent blade assemblies (208) in the same group; nor are two second blades (2084) of adjacent blade assemblies (208) in the same group parallel to each other; the second blades (2084) in each group of blade assemblies (208) are spirally arranged along the axial direction of the stirring shaft (207), and the spiral directions of the second blades (2084) in the two groups of blade assemblies (208) are opposite.

5. The earth-moving spray vehicle of claim 1, wherein: the first blade (2083) intersects with the cross section of the stirring shaft (207) to form an included angle, and the first blade (2083) intersects with the longitudinal axis of the stirring shaft (207) to form an included angle; the second blade (2084) and the first blade (2083) are arranged perpendicular to each other; both sides of the first blade (2083) are provided with folded edges (2085).

6. The earth-moving spray seeding vehicle according to any one of claims 1 to 5, wherein: the two sets of spraying devices (3) are respectively arranged at two sides of the spraying vehicle body (4), and each set of spraying device (3) comprises a nozzle (301).