A sand-fixing agent and seed integrated spraying machine

Abstract

The present invention relates to a sand-fixing agent and seed integrated spraying machine, comprising a trailer and a sowing device and a sand-fixing agent spraying device installed on the trailer; the sowing device comprises a seeding mechanism, an exhaust mechanism, and a seed spraying mechanism, and the seeds discharged from the seeding mechanism are mixed with the wind blown out by the exhaust mechanism and can be sprayed by the seed spraying mechanism; the sand-fixing agent spraying device is used to spray the sand-fixing agent after the sowing device sows. The spraying machine of the present invention integrates the sowing device and the sand-fixing agent spraying device into one, and it has the operation functions of sowing and spraying the sand-fixing agent at the same time; the sowing device sows during the movement of the trailer, and the sand-fixing agent spraying device sprays the sand-fixing agent on the sand after the sowing device sows. The sowing of the sand and the spraying of the sand-fixing agent can be completed by only operating the spraying machine, thereby improving the automation degree of the operation, reducing the labor intensity, and improving the work efficiency.

Description

Technical Field

[0001] The invention relates to the technical field of sprayers, and in particular to a sprayer integrating a sand fixation agent and seeds. Background Art

[0002] Land desertification is a global ecological and environmental problem that seriously restricts the sustainable development of the economy. For sand control and fixation, many measures and methods have been proposed and adopted, such as planting various plants (such as pasture, shrubs, etc.) on sandy grasslands, deserts and other sandy land to form vegetation that can cover the sand and suppress wind and sand, and protect wind and sand forest belts. However, due to the fluidity of the sand surface, the probability of various plant seeds (such as pasture seeds, shrub seeds, etc.) implanting and germinating is small, the survival rate is low, and the growth is slow, and the effect of sand control and fixation cannot be achieved quickly.

[0003] In order to increase the survival rate of seeds sown on sandy land and improve the efficiency of sand fixation, windbreak and sand fixation personnel began to spray sand fixation agents on the sandy land where seeds were sown. The sand surface after the sand fixation agent is applied is not easy to flow, and the nutrients contained in the sand fixation agent are also conducive to the growth of seeds. However, at present, seed sowing and sand fixation agent spraying are implemented step by step by staff using simple devices, that is, first sowing on the sandy land with a seeding machine, and then spraying the sand fixation agent on the sandy land where seeds were sown with a simple sand fixation agent spraying device (such as a sprayer). The entire operation process has a low degree of automation, high labor intensity, and low work efficiency. Summary of the invention

[0004] The purpose of the present invention is to provide a sand fixation agent and seed integrated spraying machine to solve the technical problems of low automation, high labor intensity and low work efficiency in the existing sand sowing and sand fixation agent application operations.

[0005] The technical problem solved by the present invention can be achieved by adopting the following solutions:

[0006] A sand-fixing agent and seed integrated spraying machine, characterized in that: the spraying machine comprises a trailer and a sowing device and a sand-fixing agent spraying device installed on the trailer;

[0007] The sowing device includes a seeding mechanism, an exhaust mechanism, and a seed spraying mechanism. The seeds discharged from the seeding mechanism are mixed with the wind blown by the exhaust mechanism and can be sprayed by the seed spraying mechanism. The seeding mechanism includes a seed box, a seeding device for discharging seeds from the seed box, and a seeding pipe connected to the seeding device. The exhaust mechanism includes a fan and an exhaust pipe connected to the fan. The seed spraying mechanism includes an air-seed mixing pipe connected to the seeding pipe and the exhaust pipe, and a seed spraying head connected to the air-seed mixing pipe.

[0008] The seeds discharged into the lower seed tube by the seed meter and the wind discharged into the exhaust pipe from the fan can be mixed in the wind-seed mixing tube and then sprayed through the seed spraying head;

[0009] The seed spraying mechanism also includes an air-seed mixing negative pressure bin, which includes an air inlet pipe, an air storage cone installed at the lower end of the air inlet pipe and connected to the air inlet pipe, a seed inlet pipe, and a seed discharge cone installed at the lower end of the seed inlet pipe and connected to the seed inlet pipe. At least the lower part of the seed inlet pipe is located in the air storage cone, and the diameters of the air storage cone and the seed discharge cone gradually decrease from top to bottom.

[0010] The air inlet pipe is connected with the air outlet pipe, the seed inlet pipe is connected with the seed placement pipe, and the lower end of the air storage cone is connected with the air-seed mixing pipe; the air discharged from the exhaust pipe is discharged from the air storage cone through the air inlet pipe into the air-seed mixing pipe, and the seeds discharged from the seed placement pipe are discharged from the seed placement cone through the seed inlet pipe into the air-seed mixing pipe to mix with the air; the seed placement cone and the air storage cone are fixedly connected by a positioning pin arranged at the bottom of the seed placement cone;

[0011] The sand-fixing agent spraying device is used for spraying the sand-fixing agent after the sowing device sows.

[0012] Furthermore: the seeding mechanism also includes a seeding motor, a seeding active sprocket connected to the seeding motor, a first seeding shaft sprocket driven by the seeding active sprocket through a seeding active chain, and a seeding shaft connected to the first seeding shaft sprocket; the seeding motor can drive the seeding active sprocket to rotate, the rotation of the seeding active sprocket can drive the first seeding shaft sprocket to rotate, the rotation of the first seeding shaft sprocket can drive the seeding shaft to rotate, and the rotation of the seeding shaft can drive the seeding device to work to discharge the seeds in the seed box.

[0013] Furthermore: the seeding mechanism also includes a stirring device capable of stirring the seeds in the seed box, the stirring device includes a second seeding shaft sprocket, a stirring shaft chain, a stirring shaft sprocket, a stirring shaft, and a stirring blade fixed on the stirring shaft; the rotation of the seeding shaft can drive the second seeding shaft sprocket to rotate, the rotation of the second seeding shaft sprocket can transmit power to the stirring shaft sprocket via the stirring shaft chain, the rotation of the stirring shaft sprocket can drive the stirring shaft and the stirring blade to rotate, and the stirring blade can stir the seeds in the seed box when rotating.

[0014] Furthermore: the sand-fixing agent spraying device includes a sand-fixing agent tank, a sand-fixing agent pump, a sand-fixing agent delivery pipe, and a sand-fixing agent nozzle which are connected in sequence. The sand-fixing agent pump can pump the sand-fixing agent in the sand-fixing agent tank through the sand-fixing agent delivery pipe to the sand-fixing agent nozzle for spraying.

[0015] Furthermore: the seeding machine also includes a suppression device, which is used to suppress the seeds sprayed by the seeding device.

[0016] Further: the spraying machine also includes a loosening device, which is used to loosen the sand surface before the sowing device sows.

[0017] Furthermore: the spraying machine also includes a spraying frame installed on the trailer, and the loosening device, the seed spraying head, the suppression device, and the sand fixation agent spraying head are installed on the spraying frame in sequence from front to back.

[0018] Furthermore: the spraying machine also includes a PLC controller. During the operation of the spraying machine, the PLC controller can control the fan, the seed meter, and the sand fixation agent pump to start in sequence.

[0019] The sand-fixing agent and seed integrated spraying machine of the present invention integrates a sowing device and a sand-fixing agent spraying device into one body. The sowing device sows while the trailer is moving, and the sand-fixing agent spraying device sprays the sand-fixing agent on the sand after the sowing device sows. The spraying machine has the operation functions of sowing and spraying the sand-fixing agent at the same time. The sowing and spraying of the sand-fixing agent can be completed by operating the spraying machine, thereby improving the automation of the operation, reducing the labor intensity, and improving the work efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0021] Figure 1 , Figure 2 1 is a schematic diagram of the structure of a sand fixation agent and seed integrated spraying machine according to an embodiment of the present invention;

[0022] Figure 3 This is a rear view of a sand fixation agent and seed integrated spraying machine according to an embodiment of the present invention;

[0023] Figure 4 , Figure 5 This is a partial structural detail diagram of a sand fixation agent and seed integrated spraying machine according to an embodiment of the present invention;

[0024] Figure 6 , Figure 7 It is a schematic structural diagram of a wind-seed mixing negative pressure bin of a sprayer integrating sand-fixing agent and seeds according to an embodiment of the present invention;

[0025] Figure 8 This is a structural block diagram of a control system for a sand fixation agent and seed integrated spraying machine according to a second embodiment of the present invention;

[0026] Fig. 9 This is a working diagram of a control system for a sand fixation agent and seed integrated spraying machine according to a second embodiment of the present invention;

[0027] Fig.10 This is a control panel diagram of a control system for a sand fixation agent and seed integrated spraying machine according to a second embodiment of the present invention;

[0028] Fig.11 2 is a schematic diagram of the structure of a sand fixation agent and seed integrated spraying machine according to a third embodiment of the present invention;

[0029] Fig.12 , Fig.13 2 is a schematic diagram of the structure of a sand fixation agent and seed integrated spraying machine according to a fourth embodiment of the present invention;

[0030] Fig.14 2 is a schematic diagram of the structure of a spraying head of a spraying machine integrating a sand-fixing agent and seeds according to a fourth embodiment of the present invention;

[0031] Fig.15 , 16 1 is a schematic diagram of the structure of a shallow ditch opener for a spraying machine integrating a sand fixation agent and seeds according to a fourth embodiment of the present invention;

[0032] Fig.17 4 is a schematic diagram of the structure of an elastic sand covering device of a spraying machine integrating a sand-fixing agent and a seed according to a fourth embodiment of the present invention;

[0033] Fig.18 4 is a schematic structural diagram of a contoured pressure wheel assembly of a sprayer integrating a sand-fixing agent and seeds according to a fourth embodiment of the present invention;

[0034] Main parts and numbers:

[0035] Trailer: 1; Trailer drawbar: 11;

[0036] Seeding device: 2;

[0037] Seeding mechanism; seed box: 211; seeding device: 212; seeding tube: 213; seeding motor: 214; seeding driving sprocket: 215; seeding driving chain: 216; first seeding shaft sprocket: 217; seeding shaft: 218; second seeding shaft sprocket: 2191; stirring shaft chain: 2192; stirring shaft sprocket: 2193; tensioning wheel: 2194;

[0038] Exhaust mechanism; fan: 221; exhaust pipe: 222;

[0039] Seeding mechanism; air-seed mixing tube: 231; seeding head: 232; seeding head: 232'; air-seed mixing negative pressure chamber: 233; air inlet pipe: 2331; air storage cone: 2332; seed inlet pipe: 2333; seed discharge cone: 2334; positioning pin: 2335; upper cover: 23321;

[0040] Sand-fixing agent spraying device: 3; sand-fixing agent tank: 31; sand-fixing agent pump: 32; sand-fixing agent delivery pipe: 33; sand-fixing agent nozzle: 34; sand-fixing agent valve: 35; sand-fixing agent spraying amount regulating valve: 36; sand-fixing agent intermediate delivery pipe: 331; sand-fixing agent diversion pipe: 332;

[0041] Soil covering and suppressing device: 4; elastic sand covering device: 41; contoured suppressing wheel assembly: 42; contoured suppressing wheel: 421; mounting frame: 422; compression spring: 423;

[0042] Loosening device: 5; loosening harrow: 51; contour shovel: 52; shallow furrow opener: 53; depth limiting wheel: 54;

[0043] Spraying frame: 6; spraying left frame: 61; spraying right frame: 62; spraying middle frame: 63; spraying left frame connecting pin: 641; spraying right frame connecting pin: 642; hydraulic cylinder: 65; hydraulic three-point suspension: 65'; spraying frame zipper: 66; spraying sand fixation agent frame: 67; spraying sand fixation agent left frame: 671; spraying sand fixation agent right frame: 672; spraying sand fixation agent middle frame: 673; spraying sand fixation agent left frame rotation axis: 681; spraying sand fixation agent right frame rotation axis: 682; spraying sand fixation agent left frame fixed pin: 683; spraying sand fixation agent right frame fixed pin: 684; spraying frame connecting pin: 69;

[0044] Generators: 7;

[0045] PLC controller: 81; control cabinet: 82. DETAILED DESCRIPTION

[0046] In order to more clearly demonstrate the objectives, technical solutions and advantages of the present invention, the embodiments of the present invention will be further described in detail below with reference to the accompanying drawings.

[0047] Embodiment 1

[0048] Figures 1 to 3 This is a structural schematic diagram of the integrated sand-fixing agent and seed sprayer of the present embodiment. As shown in the figure, the sprayer includes a trailer 1, a sowing device 2 and a sand-fixing agent spraying device 3 installed on the trailer 1; when the trailer 1 is moving, the sowing device 2 sows sand-fixing seeds, and the sand-fixing agent spraying device 3 sprays the sand-fixing agent after the sowing device 2 sows.

[0049] The trailer 1 can be moved by a traveling power device through a trailer traction frame 11. Furthermore, the trailer 1 is a wide tire traction trailer with a steering device, and its operating speed on desert terrain is 2-3 km / h.

[0050] like Figure 4 , 5 Further details of the structure of the sowing device 2 are shown, such as Figure 1 , 4As shown in Figure 5, the sowing device 2 includes a seeding mechanism, an exhaust mechanism, and a seed spraying mechanism. The seeds discharged from the seeding mechanism can be sprayed by the seed spraying mechanism after being mixed with the wind blown out by the exhaust mechanism. The seeds can be sprayed after being mixed with the wind. The spraying rate of the seeds in this embodiment is greater than 30 to 50 seeds per square meter. The seeds sprayed by the sowing device in this embodiment are shrub seeds. Furthermore, the shrub seeds must be pelletized. The structure of the seeds after the pelletization treatment is uniform and easy to sow, and there will be no overhead and blockage during the sowing process. In addition, the pelletized seeds are beneficial to the nutrients and moisture of the seeds for germination, which can promote the germination of shrub seeds, increase the germination rate of shrub seeds, and improve the efficiency of sand control.

[0051] Further, the seeding mechanism includes a seed box 211, a seeding device 212 for discharging seeds from the seed box 211, and a seeding tube 213 connected to the seeding device 212; the exhaust mechanism includes a fan 221 and an exhaust pipe 222 connected to the fan 221; the seed spraying mechanism includes a wind-seed mixing pipe 231 connected to the seeding tube 213 and the exhaust pipe 222, and a seed spraying head 232 connected to the wind-seed mixing pipe 231; the seeds discharged into the seeding tube 213 by the seeding device 212 and the wind discharged into the exhaust pipe 222 from the fan 221 can be mixed in the wind-seed mixing pipe 231, and then sprayed by the seed spraying head 232. Further, the seed box adopts a large seed box with a volume of 400L to reduce the number of seeding times and improve work efficiency; in order to control the seeding amount, the seeding device adopts an outer groove wheel seeding device; the fan adopts a centrifugal fan with a power of 3KW and a speed of 2900r / min.

[0052] Furthermore, the seeding mechanism also includes a seeding motor 214, a sowing active sprocket 215 connected to the seeding motor 214, a first seeding shaft sprocket 217 driven by the sowing active sprocket 215 through a sowing active chain 216, and a seeding shaft 218 connected to the first seeding shaft sprocket 217; the seeding motor 214 can drive the sowing active sprocket 215 to rotate, the rotation of the sowing active sprocket 215 can drive the first seeding shaft sprocket 217 to rotate, the rotation of the first seeding shaft sprocket 217 can drive the seeding shaft 218 to rotate, and the rotation of the seeding shaft 218 can drive the seeding device 212 to work to discharge the seeds in the seed box 211.

[0053] In order to prevent the seeds from being sown in the air or blocked, the seeding mechanism further includes a stirring device capable of stirring the seeds in the seed box 211, the stirring device including a second seeding shaft sprocket 2191, a stirring shaft chain 2192, a stirring shaft sprocket 2193, a stirring shaft, and stirring blades fixed on the stirring shaft; the rotation of the seeding shaft 218 can drive the second seeding shaft sprocket 2191 to rotate, the rotation of the second seeding shaft sprocket 2191 can transmit power to the stirring shaft sprocket 2193 via the stirring shaft chain 2192, the rotation of the stirring shaft sprocket 2193 can drive the stirring shaft and the stirring blades to rotate, and the stirring blades can stir the seeds in the seed box 211 when rotating. Furthermore, as Figure 4 As shown, a tensioning wheel 2194 is arranged to prevent the sprocket from slipping.

[0054] Further, the seed spraying mechanism also includes: Figure 6 and Figure 7 The wind seed mixing negative pressure chamber 233 shown in the figure comprises an air inlet pipe 2331, an air storage cone 2332 installed at the lower end of the air inlet pipe 2331 and connected to the air inlet pipe 2331, a seed inlet pipe 2333, and a seed discharge cone 2334 installed at the lower end of the seed inlet pipe 2333 and connected to the seed inlet pipe 2333. The middle and lower parts of the seed inlet pipe 2333 and the seed discharge cone 2334 are all located in the air storage cone 2332. The air storage cone 2332 and the seed discharge cone 2334 are arranged in a manner that the air inlet pipe 2333 and the seed discharge cone 2334 are arranged in a manner that the air inlet pipe 2333 and the seed discharge cone 2334 are arranged in a manner that the air inlet pipe 2333 and the seed discharge cone 2334 are arranged in a manner that the air inlet pipe 2333 and the seed discharge cone 2334 are arranged in a manner that the air inlet pipe 2331 and the air storage cone 2332 ... The diameter of the conical cylinder 2334 gradually decreases from top to bottom; the air inlet pipe 2331 is connected to the exhaust pipe 222, the seed inlet pipe 2333 is connected to the seed lowering pipe 213, and the lower end of the air storage conical cylinder 2332 is connected to the wind seed mixing pipe 231; the air discharged from the exhaust pipe 222 is discharged into the wind seed mixing pipe 231 by the air storage conical cylinder 2332 through the air inlet pipe 2331, and the seeds discharged from the seed lowering pipe 213 are discharged into the wind seed mixing pipe 231 by the seed discharge conical cylinder 2334 through the seed discharge pipe 213 and mixed with the air. Further, the seed discharge conical cylinder 2334 and the air storage conical cylinder 2332 are fixedly connected by a positioning pin 2335 arranged at the bottom of the seed discharge conical cylinder. Further, a total of four sets of wind seed mixing negative pressure bins are arranged. When the seeds fall from the seed box outlet, they pass through the wind-seed mixing negative pressure chamber structure to reach the seed spraying head, and finally the seeds are evenly sprayed on the working surface of the mobile sand dune. In this embodiment, the diameter of the grass seed should be less than or equal to 6 mm.

[0055] The wind seed mixing negative pressure bin structure of this embodiment has two input wind lines: one generates positive pressure and the other generates negative pressure, which are finally gathered at the bottom of the mixing negative pressure bin structure to mix the seeds and exhaust air flow and then transport them to the seed spraying head.

[0056] The wind input line that generates positive pressure is an exhaust mechanism, namely, a fan 221 and an exhaust pipe 222 connected to the fan 221. The air inlet pipe 2331 is connected to the exhaust pipe 222, and the wind power comes from the fan. The wind enters the air storage cone 2332 through the exhaust pipe and the air inlet pipe 2331. The bottom of the seed inlet pipe 2333 and the seed discharge cone 2334 both fall into the lower end of the air storage cone 2332. After the seeds are discharged from the seed discharge cone 2334, they are mixed with the wind at the lower end of the air storage cone 2332, and are sprayed out after reaching the seed spraying head with the exhaust air flow.

[0057] The wind input line that generates negative pressure is the seeding mechanism, the upper end of the seed inlet pipe 2333 is connected to the lower end of the seed lower pipe 213, and the upper end of the seed lower pipe is connected to the lower end of the seed outlet of the seed box, and the upper end of the seed box of the seed box is open as another input wind line of the wind seed mixed negative pressure bin structure, and the opening is the air inlet that generates negative pressure and then generates suction. The wind seed mixed negative pressure bin structure of this embodiment combines the negative pressure air inlet and the seed input into the same structure, and when the seed output falls into the negative pressure bin, it is synchronized with the negative pressure air intake process.

[0058] With this wind-seed mixed negative pressure bin structure, the wind force input from the air inlet pipe 2331 to the air storage cone 2332 is positive pressure, while the wind force input from the seed discharge cone 2334 to the seed inlet pipe 233 and all the way to the open upper end of the seed leakage box of the seed box is negative pressure.

[0059] In the traditional wind seed spraying structure, when the seeds are discharged into the seeding tube and mixed with the discharged wind, the airflow is easy to generate vortex at the outlet of the seeding tube, which makes the seeds unable to be discharged into the wind-seed mixing tube. With the wind-seed mixing negative pressure bin structure, negative pressure can be generated in the wind-seed mixing negative pressure bin, that is, suction can be generated at the bottom of the seeding cone 2334, and the suction can suck the seeds into the wind-seed mixing tube and make them reach the seed spraying head, so that the seeds can be sprayed smoothly.

[0060] By using the wind-seed mixing negative pressure bin of this embodiment, the air outlet of the fan is connected to the wind-seed mixing negative pressure bin through an exhaust pipe, and the seeds dropped from the outer groove wheel seeding device are transported to the spray head through the wind-seed mixing pipe, and finally sprayed onto the desertified grassland or desert, realizing near-natural sowing.

[0061] When the sowing device of this embodiment is working, the seeding motor is started first, and the seeding shaft is driven to rotate through the transmission mechanism. The rotation of the seeding shaft drives the seeding device to work to sow the seeds. The sown seeds fall into the wind-seed mixing negative pressure bin through the seed lowering tube and the seed inlet tube, and are mixed with the wind blown out by the fan and enter the wind-seed mixing negative pressure bin through the exhaust pipe and the air inlet pipe. Then, the seeds to be sown are blown to the seed spraying head through the wind-seed mixing pipe, thereby sowing the seeds.

[0062] The sand-fixing agent spraying device 3 is used to spray the sand-fixing agent after the sowing device 2 sows. Figure 1 ,4 As shown in Figure 5, the sand-fixing agent spraying device 3 includes a sand-fixing agent tank 31, a sand-fixing agent pump 32, a sand-fixing agent delivery pipe 33, and a sand-fixing agent nozzle 34 which are connected in sequence. The sand-fixing agent pump 32 can pump the sand-fixing agent in the sand-fixing agent tank 31 through the sand-fixing agent delivery pipe 33 to the sand-fixing agent nozzle 34 for spraying. Furthermore, there are multiple sand-fixing agent nozzles. In this embodiment, the sand-fixing agent adopts a plant fiber bio-based sand-fixing agent, which has strong water solubility and is green and environmentally friendly. The spraying of the sand-fixing agent can make the surface of the moving sand dunes form a crust, and the sand surface sprayed with the sand-fixing agent is not easy to flow, so as to prevent the sand and seeds from being blown away by the wind, thereby playing an anti-wind erosion role; and the sand-fixing agent contains water and nutrients, which are conducive to the survival and growth of the sprayed seeds.

[0063] Furthermore, the capacity of the sand-fixing agent tank is 5T; the sand-fixing agent pump has a power of 2.5KW and a flow rate of 50m 3 / h large flow sand fixation agent pump;

[0064] Further, such as Figure 4 As shown, the sand-fixing agent delivery pipe 33 includes a sand-fixing agent intermediate delivery pipe 331 and a sand-fixing agent diversion pipe 332 .

[0065] Furthermore, the sand-fixing agent spraying device 3 also includes a sand-fixing agent valve 35 and a sand-fixing agent spray amount regulating valve 36 installed on the sand-fixing agent delivery pipe 33. When the sand-fixing agent valve 35 is in an open state, the sand-fixing agent pump 32 can pump out the sand-fixing agent in the sand-fixing agent tank 31, and the sand-fixing agent spray amount regulating valve 36 is used to adjust the sand-fixing agent spray amount.

[0066] When the sand-fixing agent spraying device of this embodiment is working, the sand-fixing agent pump works to transport the sand-fixing agent in the sand-fixing agent tank through the sand-fixing agent valve, the sand-fixing agent intermediate delivery pipe, and the sand-fixing agent diversion pipe to the sand-fixing agent nozzle, thereby evenly spraying the sand-fixing agent (in the form of atomization and water droplets) onto the surface of the mobile sand dune management.

[0067] Furthermore, the spraying machine also includes a loosening device 5, which is used to loosen the sand surface before the sowing device 2 sows. Figure 4 As shown, the loosening device 5 of this embodiment includes a loosening rake 51, which loosens the sand surface, and the raking layer depth is 2-3 cm. The loosened sand surface becomes rough, and then the seeds sprayed by the seed spraying head fall on the loosened sand surface, which is conducive to the fixation of the seeds. Further, the loosening device 5 also includes a profiling shovel 52, which plays the role of profiling the loosening rake and controlling the depth.

[0068] Furthermore, the spraying machine further comprises a soil covering and suppressing device 4, which is used to cover and suppress the seeds sprayed by the sowing device 2. Figure 1 , 2As shown in Figures 4 and 5, the soil covering and pressing device of this embodiment is a pressing roller, which is used to cover and press the sprayed seeds with soil to further fix the seeds.

[0069] Further, the spraying machine also includes a spraying frame 6 installed on the trailer 1, and the loosening device 5, the seed spraying head 232, the soil covering and suppressing device 4, and the sand fixation agent spraying head 34 are installed on the spraying frame 6 in sequence from front to back. Further, the spraying frame is arranged at the rear of the trailer, and its width is 6 meters. Further, as shown in the figure, the sand fixation agent diversion pipe is fixed on the spraying frame through a U-shaped card and a U-shaped card plate.

[0070] Furthermore, in order to facilitate transportation and operation, the spraying frame 6 is designed as a foldable spraying frame, which can be folded up during transportation and opened during operation to increase the spraying area. Figures 1 to 5 As shown, the spraying frame 6 includes a spraying left frame 61, a spraying right frame 62, and a spraying middle frame 63. The spraying left frame 61 and the spraying middle frame 63 are hinged by a spraying left frame connecting pin 641, and the spraying right frame 62 and the spraying middle frame 63 are hinged by a spraying right frame connecting pin 642; further, a spraying frame zipper 66 is provided between the spraying left frame 61, the spraying right frame 62 and the spraying middle frame 63. During the folding and unfolding process, the spraying left frame 61 rotates around the spraying left frame connecting pin 641, and the spraying right frame 62 rotates around the spraying right frame connecting pin 642. Figure 1 , 4 5. The spraying rack is in the unfolded state. Figure 2 , 3 The middle spraying frame is in a folded state, and in the folded state, the right spraying frame and the left spraying frame are both in a state perpendicular to the middle spraying frame.

[0071] Further, such as Figure 4 As shown, the spraying frame 6 also includes a hydraulic cylinder 65 that connects the spraying frame 6 to the trailer 1. When the travel power device drives the trailer to travel, the hydraulic control button in the travel power device is operated to extend the hydraulic cylinder, which will cause the spraying frame as a whole to rotate around the spraying frame connecting pin.

[0072] Furthermore, in order to simplify the transmission structure of the spraying machine, the spraying machine also includes a generator 7, which provides power for the sand fixation agent pump, the fan, and the seeding motor 21.

[0073] When the spraying machine of this embodiment is in operation, first fill the sand-fixing agent tank with sand-fixing agent, adjust the spraying frame to Figure 1 , Figure 4 , Figure 5In the unfolded state shown, adjust the sand-fixing agent valve to the open state. Then start the generator, so that the sand-fixing agent pump, fan, and seeding motor are in working state, and the sprayer starts to work. During the movement of the trailer, the loosening device first loosens the sand surface to be sown, and the sowing device sprays the seeds on the loosened sand. Then the soil covering and suppressing device covers the seeds sprayed by the sowing device, and finally the sand-fixing agent spraying device sprays the sand-fixing agent on the sand where the seeds have been sown.

[0074] When the spraying machine stops working and needs to be moved, first stop the sand fixation agent pump, fan and seeding motor to make the working parts non-working, and then adjust the sand fixation agent valve to the closed state; then rotate the left spraying frame and the right spraying frame around their respective hinge axes, even if the spraying frame is in such a state. Figure 2 , 3 The folded state is shown; finally, the hydraulic cylinder is retracted to lift the spraying frame for easy transportation.

[0075] Embodiment 2

[0076] In order to further improve the automation of the spraying machine, the difference between this embodiment and the first embodiment is that the spraying machine also includes a control system, which is used for state detection and action control of the spraying machine. The control system includes a PLC controller 81. During the operation of the spraying machine, the PLC controller 81 can control the fan motor, the seeding motor, and the sand fixation agent pump motor to start in sequence. Further, the PLC controller controls the actions of the peripherals through the instructions of the command element; the PLC controller 81 is installed in a control cabinet 82, and the control cabinet 82 is installed on the trailer 1.

[0077] Furthermore, the 10 input points and 8 output points of the PLC controller are used, and the output form is relay output. Furthermore, 5 AC contactors are selected to control the sequential start and stop of the three motors, and 1 Delta inverter is selected to achieve one-to-two start of the motors. The operating frequency feedback of the motor is realized by setting the multi-function terminal of the Delta inverter. The PLC controller switches the motor between the industrial frequency and the variable frequency through feedback, and indicates the working status through the indicator light. Figure 8 Shown is a structural block diagram of the control system of this embodiment.

[0078] Furthermore, the control system of this embodiment has two control modes: automatic control and manual control. After selecting the automatic control mode, the AC contactor KM1 is closed, the output end of the frequency converter is connected to the fan motor, and the frequency converter starts to start the fan motor according to the internal settings; when the fan motor runs to the set frequency, the PLC controller disconnects the AC contactor KM1, and closes the AC contactor KM2 after 0.5 seconds (this step can prevent the AC contactor from acting in time, and the AC power is reversed to the output end of the frequency converter during switching and burns the equipment); the power supply of the fan motor is put into operation to complete the start of the fan motor. After the fan motor is started, the delayed AC contactor KM5 is closed to start the seeding motor. After the seeding motor is started, the AC contactor KM3 is closed, the output end of the frequency converter is connected to the sand fixation agent pump motor, and the PLC controller issues a command to the frequency converter to start and run the sand fixation agent pump motor according to the internal settings; in this way, the automatic control of the control system is completed. In addition, in order to meet the special needs of the control system debugging, a manual control mode is also set, and any motor can be started and stopped separately in the manual mode. Fig. 9 Shown is the specific operation process of automatic control and manual control of the control system.

[0079] Furthermore, the control system includes: Fig.10 The control panel shown in the figure has a rotary switch on the control panel, through which the automatic control mode and the manual control mode can be switched; the control panel is also provided with an automatic start button, and start and stop buttons for the fan motor, the seeding motor, and the sand fixation agent pump motor, and manual control of the start and stop of the three motors can be achieved through the start and stop buttons of each motor.

[0080] The specific operation process of automatic control of the control system is as follows: under the condition of ensuring reliable power supply, turn the rotary switch to the automatic position, press the automatic start button, the indicator light comes on, indicating that the automatic working process starts; the air motor drives the fan to start first, then the seeding motor drives the seeding device to start conveying seeds, and the sand fixation agent pump motor drives the sand fixation agent pump to start spraying sand fixation agent.

[0081] The specific operation process of manual control of the control system is as follows: Under the condition of ensuring reliable power supply, the operator turns the rotary switch to the manual position, and then presses the fan motor start button, seeding motor start button, and sand fixation agent pump start button in sequence. If you need to stop a motor, press the corresponding stop button.

[0082] Furthermore, the control system can be wirelessly remotely controlled. In the automatic control operation state, the automatic operation and stop of the system can be controlled by the remote control button.

[0083] Embodiment 3

[0084] Fig.11 It is the structural diagram of the spraying machine of this embodiment, as shown in Fig.11 As shown, the difference between this embodiment and the first and second embodiments is that a sand-fixing agent frame 67 is further fixedly installed on the spraying frame 6, and the sand-fixing agent nozzle 34 is fixed on the sand-fixing agent frame 67; further, in order to facilitate transportation and work, the sand-fixing agent frame 67 is foldable, which includes a sand-fixing agent left frame 671, a sand-fixing agent right frame 672, and a sand-fixing agent middle frame 673. The sand-fixing agent left frame 671 and the sand-fixing agent middle frame 673 are hinged by a sand-fixing agent left frame rotating shaft 681, and the sand-fixing agent right frame 672 and the sand-fixing agent middle frame 673 are hinged by a sand-fixing agent right frame rotating shaft 682. During the folding and unfolding process, the sand-fixing agent left frame 671 rotates around the sand-fixing agent left frame rotating shaft 681, and the sand-fixing agent right frame 672 rotates around the sand-fixing agent right frame rotating shaft 682. In addition, the spraying frame and the trailer are connected by the spraying frame connecting pin 69. Further, the width of the sand-fixing agent frame 67 when unfolded is 6 meters. The sand-fixing agent frame 67 is unfolded in the working state. When the operation is completed or short-distance transportation is completed, the sand-fixing agent left frame and the sand-fixing agent right frame are rotated 180 degrees and folded back, and the sand-fixing agent left frame fixing pin 683 and the sand-fixing agent right frame fixing pin 684 are used to fix them respectively. After folding back, the width is less than the trailer width.

[0085] Furthermore, the sand-fixing agent pump of the present embodiment adopts a diaphragm pump. When the diaphragm pump is working, the sand-fixing agent in the sand-fixing agent tank is transported to the sand-fixing agent nozzle through the sand-fixing agent valve and the sand-fixing agent delivery pipe.

[0086] Furthermore, the number of the sand fixation agent nozzles is 7.

[0087] Furthermore, the diaphragm pump is driven by the AC motor, and a belt transmission can be used between the AC motor and the diaphragm pump. The specific belt transmission assembly includes a large pulley, a small pulley and a belt. The diaphragm pump is fixed on the trailer through a base.

[0088] Embodiment 4

[0089] like Fig.12 , 13 The structure diagram of the spraying machine of this embodiment is shown. The difference between this embodiment and the first embodiment, the second embodiment and the third embodiment is that the following structures are improved:

[0090] Fig.14 FIG. 2 is a schematic diagram of the structure of the spray head 232' used in the spraying machine of this embodiment. Fig.14 As shown, the seed spray head 232' of this embodiment includes an internally threaded cylindrical tube and a fan-shaped nozzle connected to each other. Further, the cone angle of the fan-shaped nozzle is 120 degrees, and the outlet width of the fan-shaped nozzle is less than or equal to 6 mm. Further, this embodiment has three groups of seed spray heads 232'. The seeds sprayed by the seed spray head are generally fan-shaped.

[0091] Furthermore, the aeration device of this embodiment includes: Fig.15 Or the shallow ditch opener 53 shown in 16 and Fig.13 The depth gauge wheel 54 shown in FIG. Fig.15 The notch of the medium shallow ditch opener is semicircular. Fig.16 The notch shape of the middle shallow furrow opener is triangular. The shallow furrow opener 53 and the depth limiting wheel 54 are both installed on the spraying frame. The shallow furrow opener can play the role of loosening and leveling the sand, and the depth limiting wheel can play the role of limiting the depth of the shallow furrow opener into the soil.

[0092] Furthermore, the soil covering and suppression device of this embodiment includes: Fig.17 The elastic sand covering device 41 shown in Fig.18 The profiling suppressing wheel assembly 42 shown. Further, the material selected for the elastic sand covering device 41 is a rubber plate with a smooth surface and can be folded for use. Further, the profiling suppressing wheel assembly 42 includes a profiling suppressing wheel 421, a mounting frame 422 and a compression spring 423, and the profiling suppressing wheel 421 and the compression spring 423 are both mounted on the mounting frame 422. Further, the profiling suppressing wheel is a single-wheel profiling suppressing wheel with a profiling width of 300 mm. Under the action of the compression spring, the suppressing wheel always keeps in contact with the sand surface. Further, the spraying machine is equipped with a total of 10 sets of single-wheel profiling suppressing wheels. When the soil covering and suppressing device is working, the elastic sand covering device covers the sand on the sprayed seeds, and then the profiling suppressing wheel suppresses the sand covering the surface of the seeds, and the profiling suppressing wheel can also play a role of profiling with the terrain.

[0093] Further, in this embodiment, the spraying frame 6 and the trailer 1 are connected by Fig.13 The hydraulic three-point suspension device 65' shown in FIG.

[0094] Furthermore, the present embodiment has a foldable sand-fixing agent frame and a seed spraying frame. The sand-fixing agent frame includes a left sand-fixing agent frame, a right sand-fixing agent frame, and a middle sand-fixing agent frame, and the seed spraying frame includes a left seed spraying frame, a middle seed spraying frame, and a right seed spraying frame. The sand-fixing agent frame and the seed spraying frame are simultaneously unfolded in the working state, with a width of 3.6 meters. When the operation is completed or short-distance transportation is carried out, the sand-fixing agent frame can be rotated 180 degrees by rotating the pin shaft, and the seed spraying frame can be folded back 120 degrees. After folding back, the width of the sand-fixing agent frame and the seed spraying frame are both less than the width of the trailer, which is convenient for transportation.

[0095] The spraying machine of this embodiment organically matches the bio-based sand-fixing agent, the near-natural restoration of desertified grassland and mechanized operation, and realizes the integration of sand fixation, wind erosion prevention, near-natural restoration of vegetation and mechanized construction at the same time, completing multiple processes of ditching, seed spraying, sand covering, suppression and spraying of sand-fixing agent at one time. In addition, the spraying machine of this embodiment can be remotely controlled automatically or manually controlled. When the remote control is in operation, the fan, seed discharge motor, sand-fixing agent valve and sand-fixing agent pump are automatically started in sequence according to the sowing technical process requirements.

[0096] The seed drill of the present embodiment is towed by a crawler tractor with a horsepower of ≥100. When operating, first adjust the flow of the shallow ditch opener, the elastic sand covering device, the contoured pressing wheel and the sand fixation agent nozzle, start the generator and the fan, and start the seed discharge motor and the sand fixation agent pump under normal traction of the crawler tractor. The shallow ditch opener opens shallow furrows on the surface of the mobile sand dune, and then the seed spraying head sprays seeds. Then the elastic sand covering device covers the sand, which is suppressed by the contoured pressing wheel assembly, and finally the sand fixation agent is sprayed through the sand fixation agent nozzle to complete all operation procedures.

[0097] The above is only a specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art can easily think of changes or substitutions within the technical scope disclosed by the present invention, which should be included in the protection scope of the present invention. Therefore, the protection scope of the present invention should be based on the protection scope of the claims.

Claims

1. A sand-fixing agent and seed integrated spraying machine, characterized in that: The spraying machine comprises a trailer (1), a sowing device (2) and a sand-fixing agent spraying device (3) installed on the trailer (1); The sowing device (2) comprises a seeding mechanism, an exhaust mechanism, and a seed spraying mechanism. The seeds discharged from the seeding mechanism are mixed with the wind blown out by the exhaust mechanism and can be sprayed by the seed spraying mechanism. The seeding mechanism comprises a seed box (211), a seeding device (212) for discharging seeds from the seed box (211), and a seeding tube (213) connected to the seeding device (212). The exhaust mechanism comprises a fan (221) and an exhaust pipe (222) connected to the fan (221). The seed spraying mechanism comprises an air-seed mixing pipe (231) connected to the seeding tube (213) and the exhaust pipe (222), and a seed spraying head (232) connected to the air-seed mixing pipe (231). The seeds discharged into the lower seeding tube (213) by the seed metering device (212) and the wind discharged into the exhaust pipe (222) from the fan (221) can be mixed in the wind-seed mixing tube (231) and then sprayed through the seed spraying head (232); The seed spraying mechanism also includes an air-seed mixing negative pressure chamber (233), which includes an air inlet pipe (2331), an air storage cone (2332) installed at the lower end of the air inlet pipe (2331) and connected to the air inlet pipe (2331), a seed inlet pipe (2333), and a seed discharge cone (2334) installed at the lower end of the seed inlet pipe (2333) and connected to the seed inlet pipe (2333), at least the lower part of the seed inlet pipe (2333) is located in the air storage cone (2332), and the diameters of the air storage cone (2332) and the seed discharge cone (2334) gradually decrease from top to bottom; The air inlet pipe (2331) is connected to the air outlet pipe (222), the seed inlet pipe (2333) is connected to the seed placement pipe (213), and the lower end of the air storage cone (2332) is connected to the air-seed mixing pipe (231); the air discharged from the air outlet pipe (222) is discharged from the air storage cone (2332) into the air-seed mixing pipe (231) via the air inlet pipe (2331), and the seeds discharged from the seed placement pipe (213) are discharged from the seed placement cone (2334) into the air-seed mixing pipe (231) via the seed inlet pipe (2333) to be mixed with the air; the seed placement cone (2334) and the air storage cone (2332) are fixedly connected via a positioning pin (2335) provided at the bottom of the seed placement cone; The sand-fixing agent spraying device (3) is used to spray the sand-fixing agent after the sowing device (2) sows.

2. The sand-fixing agent and seed integrated spraying machine according to claim 1, characterized in that: The seeding mechanism further comprises a seeding motor (214), a seeding driving sprocket (215) connected to the seeding motor (214), a first seeding shaft sprocket (217) driven by the seeding driving sprocket (215) via a seeding driving chain (216), and a seeding shaft (218) connected to the first seeding shaft sprocket (217); the seeding motor (214) can drive the seeding driving sprocket (215) to rotate, the rotation of the seeding driving sprocket (215) can drive the first seeding shaft sprocket (217) to rotate, the rotation of the first seeding shaft sprocket (217) can drive the seeding shaft (218) to rotate, and the rotation of the seeding shaft (218) can drive the seeding device (212) to work so as to discharge the seeds in the seed box (211).

3. The sand-fixing agent and seed integrated spraying machine according to claim 2, characterized in that: The seeding mechanism also includes a stirring device capable of stirring the seeds in the seed box (211), the stirring device including a second seeding shaft sprocket (2191), a stirring shaft chain (2192), a stirring shaft sprocket (2193), a stirring shaft, and a stirring blade fixed to the stirring shaft; the rotation of the seeding shaft (218) can drive the second seeding shaft sprocket (2191) to rotate, the rotation of the second seeding shaft sprocket (2191) can transmit power to the stirring shaft sprocket (2193) via the stirring shaft chain (2192), the rotation of the stirring shaft sprocket (2193) can drive the stirring shaft and the stirring blade to rotate, and the stirring blade can stir the seeds in the seed box (211) when rotating.

4. The sand-fixing agent and seed integrated spraying machine according to claim 1, characterized in that: The sand-fixing agent spraying device (3) comprises a sand-fixing agent tank (31), a sand-fixing agent pump (32), a sand-fixing agent delivery pipe (33), and a sand-fixing agent nozzle (34) which are connected in sequence. The sand-fixing agent pump (32) can pump the sand-fixing agent in the sand-fixing agent tank (31) through the sand-fixing agent delivery pipe (33) to the sand-fixing agent nozzle (34) for spraying.

5. The sand-fixing agent and seed integrated spraying machine according to claim 4, characterized in that: The seed drill also includes a suppression device (4), which is used to suppress the seeds sprayed by the seeding device (2).

6. The sand-fixing agent and seed integrated spraying machine according to claim 5, characterized in that: The spraying machine also includes a loosening device (5), which is used to loosen the sand surface before the sowing device (2) sows.

7. The sand-fixing agent and seed integrated spraying machine according to claim 6, characterized in that: The spraying machine also includes a spraying frame (6) installed on the trailer (1), and the loosening device (5), the seed spraying head (232), the suppression device (4), and the sand fixation agent spraying head (34) are installed on the spraying frame (6) in sequence from front to back.

8. The sand-fixing agent and seed integrated spraying machine according to claim 4, characterized in that: The spraying machine also includes a PLC controller (81). During the operation of the spraying machine, the PLC controller (81) can control the fan (221), the seed meter (212), and the sand fixation agent pump (32) to start in sequence.

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