Intelligent grass seed spreading equipment for collapsible loess slope vegetation restoration

Abstract

The invention discloses an intelligent grass seed broadcast sowing device for collapsible loess slope vegetation restoration, and relates to the technical field of slope grass seed broadcast sowing, the intelligent grass seed broadcast sowing device comprises a mobile vehicle body for bearing the broadcast sowing device and moving along a slope protection square grid framework; the front mixed soil storage cavity is fixed at the top of the front end of the mobile vehicle body; the rear mixing soil storage cavity is fixed at the top of the rear end of the mobile vehicle body; the grass seed conveying cavity is fixed to the top of the movable vehicle body and located between the front mixed soil storage cavity and the rear mixed soil storage cavity; the front soil covering device is fixed at the front end of the mobile vehicle body and is connected with the front mixed soil storage cavity through a spiral conveying pipe; the rear soil covering device is fixed at the rear end of the mobile vehicle body and corresponds to the rear mixed soil storage cavity; the sowing device is fixed in the center of the bottom of the movable vehicle body, and the top is connected with the grass seed conveying cavity. According to the invention, uniform sowing of grass seeds in the grid area and uniform and dense soil covering layers are realized, and the sowing efficiency, the grass seed utilization rate and the slope consolidation stability are obviously improved.

Description

Technical Field

[0001] This invention relates to the field of grass seeding technology on slopes, and more specifically, to an intelligent grass seeding device for vegetation restoration of collapsible loess slopes. Background Technology

[0002] In the treatment of collapsible loess slopes, a grid framework technique is often used to stabilize the slope, dividing it into multiple grid areas to enhance stability. However, traditional vegetation restoration equipment faces significant technical bottlenecks when sowing grass seeds within these grid areas: First, although the grid framework divides the work units, traditional equipment lacks precise positioning capabilities, often resulting in grass seeds being sown onto the grid framework structure rather than within the grid areas due to path deviations, creating blind spots or repeated sowing and reducing restoration efficiency. Second, the loose nature and slope variations of collapsible loess make it difficult for traditional equipment to form a uniform soil cover layer within the grid areas, and uneven thickness of the subsoil cover layer easily leads to poor grass seed germination rates. Firstly, the topsoil cover layer is too thin, failing to effectively prevent rainwater erosion; too thick, it inhibits grass seed germination. Secondly, traditional seeding equipment lacks an adaptive adjustment mechanism, making it prone to soil clogging and uneven seed distribution due to slope vibration or changes in slope gradient when operating in grid areas, thus affecting slope consolidation. Thirdly, the three-dimensional structure of the grid framework places higher demands on the modular layout of the seeding equipment. Traditional equipment lacks sufficient coordination among its functional units, making it difficult to achieve precise coordination of "transportation-dispersion-guidance," resulting in low seeding accuracy and poor seed utilization. Therefore, it is necessary to provide intelligent grass seeding equipment for vegetation restoration of collapsible loess slopes to address the problems mentioned in the background. Summary of the Invention

[0003] To achieve the above objectives, the present invention provides the following technical solution: an intelligent grass seed spreading device for vegetation restoration of collapsible loess slopes, comprising:

[0004] The mobile vehicle, carrying the seeding equipment, moves along the slope protection grid framework.

[0005] The pre-mixing soil storage chamber is fixed to the top of the front end of the mobile vehicle body;

[0006] The post-mixing soil storage chamber is fixed to the top of the rear end of the mobile vehicle body;

[0007] The grass seed conveying chamber is fixed to the top of the mobile vehicle and is located between the front mixing and storage chamber and the rear mixing and storage chamber.

[0008] The front soil covering device is fixed to the front end of the mobile vehicle and is connected to the front mixing and storage chamber through a spiral conveying pipe.

[0009] The rear soil covering device is fixed at the rear end of the mobile vehicle and corresponds to the post-mixing soil storage chamber.

[0010] The sowing device is fixed at the bottom center of the mobile vehicle body and connected with the grass seed conveying cavity at the top.

[0011] Further, as a preferred, the front covering device in the embodiment includes:

[0012] The dispersing conveying assembly is fixed at the front end of the mobile vehicle body.

[0013] The self-adjusting covering assembly is fixed at the bottom of the dispersing conveying assembly and connected with the dispersing conveying assembly.

[0014] The driving mechanism is fixed at one end of the dispersing conveying assembly and the self-adjusting covering assembly to drive the dispersing conveying assembly and the self-adjusting covering assembly respectively.

[0015] Further, as a preferred, the dispersing conveying assembly includes:

[0016] The connecting frame is fixed at the front end of the mobile vehicle body and provided with an input port connected with the spiral conveying pipe at the top.

[0017] The guide inclined plates are symmetrically arranged and obliquely arranged at the top input port of the connecting frame.

[0018] The control transmission group is fixed at the bottom between the guide inclined plates.

[0019] The spiral conveying shafts are symmetrically arranged and connected at two ends of the control transmission group with opposite rotation directions.

[0020] Further, as a preferred, the self-adjusting covering assembly includes:

[0021] The positioning frame is fixed at the bottom of the connecting frame and connected with the connecting frame.

[0022] The limiting curved surface is divided into two parts and fixed at both sides of the connecting port between the positioning frame and the connecting frame.

[0023] The adjusting curved surface is rotationally arranged outside the limiting curved surface.

[0024] The output channel is fixed at the bottom of the limiting curved surface and connected with the limiting curved surface, and provided with a counterweight at both ends of the output channel, and the other side of the limiting curved surface at the front side corresponds to the output channel.

[0025] The conveying shaft body is rotationally arranged between the limiting curved surface and the adjusting curved surface, and a plurality of annular grooves corresponding to the output channel are arranged on the side wall of the conveying shaft body, and the other side of the limiting curved surface at the rear side is in the same horizontal plane as the central axis of the conveying shaft body.

[0026] Further, as a preferred, the rear covering device includes:

[0027] The spacers are linearly distributed and fixed to the rear end of the moving vehicle body;

[0028] The connecting shafts pass through the spacers and are rotatably connected to the spacers;

[0029] The connecting pieces are linearly distributed and are spaced apart from the spacers, and the two sides of the connecting pieces are spaced apart from the spacers and are fixedly connected to the connecting shafts;

[0030] The connecting plate connects the plurality of connecting pieces;

[0031] The conveying plate bodies are linearly distributed and are fixed to the side opposite to the connecting pieces on the connecting plate;

[0032] The rotating mechanism is fixed to the side of the rear mixing and soil storage cavity and is fixedly connected to one end of the connecting shaft through the telescopic shaft;

[0033] The pushing mechanism is fixed to the other side of the rear mixing and soil storage cavity and is rotatably connected to the other end of the connecting shaft.

[0034] Further, as a preferred, the spreading device comprises:

[0035] The control connecting assembly is fixed to the bottom of the moving vehicle body and is in communication with the grass seed conveying cavity at the top;

[0036] The dispersion assemblies are linearly distributed and are connected to the sides of the control connecting assembly;

[0037] The baffles are symmetrically distributed and are fixed to the two sides of the bottom of the moving vehicle body and are located on the two sides of the dispersion assemblies;

[0038] The conveying guide assemblies are asymmetrically distributed and are respectively arranged below the corresponding dispersion assemblies and are connected to the corresponding baffles;

[0039] The feeding channels are two and are composed of vertical segments and arc segments, the vertical segments are in communication with the grass seed conveying cavity through the control connecting assembly, and the arc segments are connected to the corresponding vertical segments and dispersion assemblies.

[0040] Further, as a preferred, the control connecting assembly comprises:

[0041] The connecting body is fixed to the bottom of the moving vehicle body and has a coaxial reversing mechanism inside, and the coaxial reversing mechanism connects the dispersion assemblies;

[0042] The conveying notch is arranged at the rear end of the connecting body and corresponds to the feeding channel.

[0043] Further, as a preferred, the dispersion assembly comprises:

[0044] The connecting ring is connected to the coaxial reversing mechanism in the connecting body.

[0045] The screening ring net is fixed on the outer ring of the connecting ring;

[0046] The shunt arc plates are arranged in multiple groups from the center to the outside, each group of the ring is provided with multiple shunt arc plates, and the spacing between the shunt arc plates on the same group on the outside and the shunt arc plates on the same group on the inside corresponds.

[0047] Further, as a preferred, the conveying guide assembly comprises:

[0048] The fixed surface is fixed on the side of the corresponding baffle, is located at the bottom of the dispersion assembly, and the bottom of the fixed surface is provided with a vibration mechanism composed of a motor and a cam;

[0049] The flow guide surface is located below the fixed surface, is attached to the baffle on the side, and is connected to the fixed surface through a buffer connecting surface, the rear end of the flow guide surface is linear, the side of the front end connected to the buffer connecting surface is linear, the other side is arc-shaped, corresponds to the dispersion assembly, and the two conveying guide assemblies exist overlap on the side away from the baffle.

[0050] Compared with the prior art, the beneficial effects of the present application are:

[0051] In the present application, by arranging the moving vehicle body to move longitudinally along the slope protection square lattice net framework, the precise positioning of the equipment operation path and the precise control of "one grid one operation" are realized, repeated operation or missed area is avoided, and the operation efficiency and positioning accuracy are improved;

[0052] Through the modular layout and layered covering structure design of the front soil covering device and the rear soil covering device, a reasonable soil covering structure of "thick at the bottom and thin at the top" is formed, the grass seed germination rate and the slope consolidation effect are improved;

[0053] Through the design of the counterweight block and the dynamic adjustment cavity of the self-adjusting soil covering assembly, the slope inclination is self-adapted and the soil is vertically output, the uneven covering caused by slope change is avoided, and the uniformity and density of the bottom soil covering layer are improved;

[0054] Through the design of the screening ring net and the multi-stage shunt arc plate of the dispersion assembly, the uniform dispersion and directional conveying of the grass seeds are realized, the uniformity of sowing is improved and the clump blockage is avoided;

[0055] Through the vibration flow guide and arc trajectory design of the conveying guide assembly, the grass seeds are prevented from adhering and no dead angle collection is realized, the grass seeds are accurately guided to the square lattice net area, and the sowing accuracy and efficiency are improved;

[0056] Through the design of the coaxial reverse rotation mechanism of the control connecting assembly, the upper and lower dispersion assemblies are driven to rotate in opposite directions, the continuous conveying and uniform dispersion of the grass seeds are realized, and the operation reliability and sowing stability are improved. BRIEF DESCRIPTION OF DRAWINGS

[0057] Figure 1 The overall structure schematic diagram of the grass seed intelligent sowing equipment for vegetation restoration of collapsible loess slope;

[0058] Figure 2 The top view of the grass seed intelligent sowing equipment for vegetation restoration of collapsible loess slope;

[0059] Figure 3 The structure schematic diagram of the dispersion conveying assembly;

[0060] Figure 4 The structure schematic diagram of the self-adjusting covering assembly;

[0061] Figure 5 The connection schematic diagram of the rear mixing soil storage cavity and the rear covering device;

[0062] Figure 6 The structure schematic diagram of the rear covering device;

[0063] Figure 7 The structure schematic diagram of the bottom of the sowing device;

[0064] Figure 8 The structure schematic diagram of the sowing device;

[0065] Figure 9 The structure schematic diagram of the control connection assembly, the dispersion assembly and the conveying guide assembly;

[0066] Figure 10 The working schematic diagram;

[0067] In the figure: 1, the moving vehicle body; 2, the front mixing soil storage cavity; 3, the rear mixing soil storage cavity; 4, the grass seed conveying cavity; 5, the front covering device; 6, the spiral conveying pipe; 7, the rear covering device; 8, the sowing device; 51, the dispersion conveying assembly; 52, the self-adjusting covering assembly; 53, the driving mechanism; 71, the spacer; 72, the connecting shaft; 73, the connecting piece; 74, the connecting plate; 75, the conveying plate body; 76, the rotating mechanism; 77, the pushing mechanism; 81, the control connection assembly; 82, the dispersion assembly; 83, the baffle; 84, the conveying guide assembly; 85, the feeding channel; 511, the connecting frame; 512, the guide inclined plate; 513, the control transmission group; 514, the spiral conveying shaft; 521, the positioning frame; 522, the limiting camber; 523, the adjusting camber; 524, the output channel; 525, the conveying shaft body; 811, the connecting main body; 812, the conveying gap; 821, the connecting ring; 822, the screening ring net; 823, the shunt cam plate; 841, the fixed surface; 842, the buffer connecting surface; 843, the flow guide surface. DETAILED DESCRIPTION

[0068] Please refer to Figures 1-10The grass seed intelligent sowing equipment for vegetation restoration of collapsible loess slope in the embodiment of the application comprises:

[0069] The mobile vehicle body 1 carries the sowing equipment and moves along the slope protection square grid framework;

[0070] The front mixed soil cavity 2 is fixed at the top of the front end of the mobile vehicle body 1;

[0071] The rear mixed soil cavity 3 is fixed at the top of the rear end of the mobile vehicle body 1;

[0072] The grass seed conveying cavity 4 is fixed at the top of the mobile vehicle body 1 and is located between the front mixed soil cavity 2 and the rear mixed soil cavity 3;

[0073] The front soil covering device 5 is fixed at the front end of the mobile vehicle body 1 and is connected with the front mixed soil cavity 2 through the spiral conveying pipe 6;

[0074] The rear soil covering device 7 is fixed at the rear end of the mobile vehicle body 1 and corresponds to the rear mixed soil cavity 3;

[0075] The sowing device 8 is fixed at the bottom center of the mobile vehicle body 1 and the top thereof is connected with the grass seed conveying cavity 4.

[0076] As a preferred embodiment, the mobile vehicle body 1 is used as a core bearing platform, which is longitudinally and accurately moved along the slope protection square grid framework (the square grid framework divides the slope into multiple square areas) through the bottom driving wheel set or external mechanical arm pushing, the bottom center of which is fixed with the sowing device 8, the front end of which is integrated with the front soil covering device 5 and the front mixed soil cavity 2, the rear end of which is configured with the rear soil covering device 7 and the rear mixed soil cavity 3, and the middle part of which is loaded with the grass seed conveying cavity 4, and the modular layout ensures the collaborative work of each functional unit - when the equipment is longitudinally moved along the square grid framework, the front mixed soil cavity 2 delivers the planting soil to the front soil covering device 5 through the spiral conveying pipe 6, the rear mixed soil cavity 3 synchronously supplies the soil to the rear soil covering device 7, and the grass seed conveying cavity 4 accurately delivers the seeds to the sowing device 8 through the feeding channel 85, so that the equipment can still maintain high work efficiency and sowing accuracy under complex slope terrain, the longitudinal movement path of the square grid framework realizes the accurate positioning of “one grid one work”, and repeated work or missed areas are avoided.

[0077] In the embodiment, the front soil covering device 5 comprises:

[0078] The dispersed conveying assembly 51 is fixed at the front end of the mobile vehicle body 1;

[0079] The self-adjusting soil covering assembly 52 is fixed at the bottom of the dispersed conveying assembly 51 and is in communication with the dispersed conveying assembly 51;

[0080] The driving mechanism 53 is fixed at one end of the dispersion conveying assembly 51 and the self-adjusting covering assembly 52, and drives the dispersion conveying assembly 51 and the self-adjusting covering assembly 52, respectively.

[0081] That is, when the mobile vehicle body 1 moves along the longitudinal direction of the slope protection square grid framework, the spiral conveying pipe 6 conveys the planting soil in the front mixed soil storage cavity 2 into the dispersion conveying assembly 51, and under the control of the driving mechanism 53, the planting soil is conveyed to both ends of the dispersion conveying assembly 51 by the dispersion conveying assembly 51, and then is conveyed downward into the self-adjusting covering assembly 52, and under the driving of the driving mechanism 53, the planting soil is covered in the square grid area.

[0082] In the embodiment, the dispersion conveying assembly 51 comprises:

[0083] The connecting frame 511 is fixed at the front end of the mobile vehicle body 1, and the top is provided with an input port connected with the spiral conveying pipe 6;

[0084] The guide inclined plate 512 is symmetrically arranged and provided with two, and is arranged in an inclined manner at the top input port of the connecting frame 511;

[0085] The control transmission group 513 is fixed at the bottom between the guide inclined plates 512;

[0086] The spiral conveying shaft 514 is symmetrically arranged and provided with two, and is connected at both ends of the control transmission group 513, and the rotation directions are opposite.

[0087] That is, the top input port of the connecting frame 511 is connected with the spiral conveying pipe 6, the guide inclined plates 512 are symmetrically arranged in an inclined manner to form a soil flow channel, the driving mechanism 53 controls the rotation of the spiral conveying shaft 514 at one end, and under the transmission of the control transmission group 513, the spiral conveying shaft 514 at the other end rotates in the opposite direction, the soil is uniformly dispersed through the shear force between the shafts, the soil conveying efficiency is effectively improved, and the uniformity of the bottom soil covering layer is ensured.

[0088] In the embodiment, the self-adjusting covering assembly 52 comprises:

[0089] The positioning frame 521 is fixed at the bottom of the connecting frame 511 and is in communication with the connecting frame 511;

[0090] The limiting curved surface 522 is divided into two parts and is fixed at both sides of the communication port between the positioning frame 521 and the connecting frame 511;

[0091] The adjusting curved surface 523 is arranged in a rotating manner outside the limiting curved surface 522;

[0092] The output channel 524 is fixed at the bottom of the limiting arc surface 522 and communicates with the limiting arc surface 522. The output channel 524 is provided with a counterweight at both ends, and the other side of the front limiting arc surface 522 corresponds to the output channel 524;

[0093] The conveying shaft body 525 is rotatably arranged between the limiting arc surface 522 and the adjusting arc surface 523. The side wall of the conveying shaft body 525 is provided with a plurality of annular grooves corresponding to the output channel 524, and the other side of the rear limiting arc surface 522 is in the same horizontal plane as the central axis of the conveying shaft body 525.

[0094] That is, the positioning frame 521 communicates with the connecting frame 511, the limiting arc surface 522 and the adjusting arc surface 523 form a dynamic adjusting cavity, the annular grooves on the surface of the conveying shaft body 525 cooperate with the output channel 524, and the rotating angle of the adjusting arc surface 523 is self-adaptive to the slope inclination under the action of the counterweight, and the output channel 524 is stably positioned. The rear limiting arc surface 522 is designed to be coplanar with the central axis of the shaft body, which limits the rotation range of the adjusting arc surface 523. When the mobile vehicle body 1 moves longitudinally on the slope, the adjusting arc surface 523 is adjusted to rotate to the rear side of the adjusting arc surface 523 on the limiting arc surface 522 under the action of the counterweight through the output channel 524, so that the output channel 524 is perpendicular to the horizontal plane downward, ensuring that the planting soil is quickly output and accurately falling into the square grid framework area, avoiding uneven soil covering caused by slope change, and self-adaptive ability without manual intervention, significantly improving the operation efficiency, while ensuring the uniformity of the bottom soil covering layer thickness, providing a stable bed for grass seed germination, and then under the continuous rotation of the conveying shaft body 525, the grooves on the conveying shaft body 525 drive the planting soil to move to the output channel 524. The groove design effectively increases the soil carrying capacity, cooperates with the vertical output directional guide, reduces the risk of soil clump blockage in the conveying process, and the dynamic cavity structure makes the soil form a continuous flow layer in the cavity, avoids the segregation of planting soil caused by slope vibration, ensures the compactness of the bottom soil covering layer, and enhances the consolidation effect on collapsible loess.

[0095] In this embodiment, the rear covering device 7 comprises:

[0096] The spacers 71 are linearly distributed and fixed at the rear end of the mobile vehicle body 1.

[0097] The connecting shaft 72 penetrates through the plurality of spacers 71 and is rotatably connected with the spacers 71.

[0098] The connecting pieces 73 are linearly distributed and arranged at intervals with the spacers 71. The connecting pieces 73 are fixedly connected with the connecting shaft 72 and are spaced apart from the spacers 71.

[0099] The connecting plate 74 connects the plurality of connecting pieces 73.

[0100] The conveying plate body 75 is linearly distributed and fixed on the side of the connecting plate 74 opposite to the connecting piece 73;

[0101] The rotating mechanism 76 is fixed on the side of the rear mixing and soil storing cavity 3 and is fixedly connected with one end of the connecting shaft 72 through an extension shaft;

[0102] The pushing mechanism 77 is fixed on the other side of the rear mixing and soil storing cavity 3 and is rotatably connected with the other end of the connecting shaft 72.

[0103] That is, the spacer 71 and the connecting shaft 72 constitute a rotating base frame, the connecting piece 73 and the conveying plate body 75 are linked through the connecting plate 74, the rotating mechanism 76 drives the connecting shaft 72 to rotate and adjust through the extension shaft, the inclination angle of the conveying plate body 75 is controlled, and the covering amount of the topsoil is controlled. When the conveying plate body 75 remains in the initial position, the planting soil conveying speed is constant. When the connecting shaft 72 controls the conveying plate body 75 to rotate towards the slope, the planting soil conveying speed is accelerated, and the covering amount of the topsoil is increased. Conversely, when the connecting shaft 72 controls the conveying plate body 75 to rotate away from the slope, the planting soil conveying speed is slowed down, and the covering amount of the topsoil is reduced. Moreover, the conveying plate body 75 is always in an inclined state when the moving vehicle body 1 is on the slope, so that the planting soil is conveyed into the grid area, the grass seeds are covered with soil, the loss of the grass seeds due to rainwater is effectively prevented, the seedling rate is improved, the topsoil covering thickness is less than the bottomsoil covering thickness, a reasonable covering structure of "thick bottom and thin top" is formed, and when the conveying plate body 75 covers the soil, the pushing mechanism 77 drives the connecting piece 73 to reciprocate between the spacers 71 through the connecting shaft 72, drives the conveying plate body 75 to move back and forth through the connecting plate 74, and makes the planting soil uniformly cover the surface of the grass seeds.

[0104] In this embodiment, the sowing device 8 comprises:

[0105] The control connecting assembly 81 is fixed at the bottom of the moving vehicle body 1 and is in communication with the grass seed conveying cavity 4 at the top;

[0106] The dispersion assembly 82 is arranged in two upper and lower parts and is connected with the side of the control connecting assembly 81;

[0107] The baffle 83 is symmetrically arranged in two parts and is fixed at the two sides of the bottom of the moving vehicle body 1 and is located at the two sides of the dispersion assembly 82;

[0108] The conveying guide assembly 84 is asymmetrically arranged in two parts and is arranged below the corresponding dispersion assembly 82 and is connected with the corresponding baffle 83;

[0109] The feeding channel 85 is arranged in two parts and is composed of a vertical segment and an arc segment. The vertical segment is in communication with the grass seed conveying cavity 4 through the control connecting assembly 81, and the arc segment is connected with the corresponding vertical segment and the dispersion assembly 82.

[0110] That is, the sowing device 8 realizes accurate sowing of grass seeds through a "transportation-dispersion-guidance" three-level cooperative mechanism. Under the control of the connecting assembly 81, the grass seeds in the grass seed transportation cavity 4 are accurately guided into the inner ring at the rear end of the dispersion assembly 82 through the feeding channel 85 (vertical section + arc section). The upper and lower dispersion assemblies 82 are driven to rotate reversely by the connecting assembly 81, and the grass seeds are dispersed and thrown out by using the centrifugal field and the screening ring net 822. Finally, the grass seeds are accurately guided to the center area of the square grid by the vibration flow guiding and arc trajectory matching of the transportation and guidance assembly 84, and the baffle 83 corresponding to the inner side of the slope protection grid framework, so that the grass seeds are evenly sowed, the sowing efficiency is effectively improved, and the waste and clump blockage of the grass seeds are avoided.

[0111] In this embodiment, the connecting assembly 81 comprises:

[0112] The connecting body 811 is fixed at the bottom of the mobile vehicle body 1, and the coaxial reverse rotation mechanism is arranged in the connecting body 811, and the coaxial reverse rotation mechanism is connected with the dispersion assembly 82.

[0113] The transportation gap 812 is arranged at the rear end of the connecting body 811 and corresponds to the feeding channel 85.

[0114] That is, the connecting body 811 is internally provided with the coaxial reverse rotation mechanism, which drives the upper and lower dispersion assemblies 82 to rotate reversely. The dispersion assembly 82 rotates to the direction where the corresponding transportation and guidance assembly 84 is located, disperses the grass seeds, and transports the grass seeds to the corresponding transportation and guidance assembly 84. The transportation gap 812 limits the position of the feeding channel 85, connects the grass seed transportation cavity 4 through the vertical section, and is seamlessly connected with the dispersion assembly 82 through the arc section, so as to ensure the continuous transportation of the grass seeds from the grass seed transportation cavity 4 to the dispersion assembly 82, fix the transportation position of the grass seeds, and make the grass seeds always transported to the inner ring at the rear end of the dispersion assembly 82. During the rotation of the dispersion assembly 82, the grass seeds move to the position where the transportation and guidance assembly 84 is located and are dispersed outward, so as to ensure the uniform sowing of the grass seeds and improve the operation reliability.

[0115] In this embodiment, the dispersion assembly 82 comprises:

[0116] The connecting ring 821 is connected with the coaxial reverse rotation mechanism in the connecting body 811.

[0117] The screening ring net 822 is fixed on the outer ring of the connecting ring 821.

[0118] The shunt arc plate 823 is arranged in multiple groups from the center to the outside, each group of the ring is provided with a plurality of shunt arc plates 823, and the interval between the shunt arc plates 823 in the same group on the outside and the shunt arc plates 823 in the same group on the inside corresponds.

[0119] That is, when the mobile vehicle body 1 moves longitudinally along the slope protection square grid framework, the dispersion assembly 82 is in an inclined state parallel to the slope, the connecting ring 821 is connected with the coaxial reversing mechanism, the screening ring net 822 is rotated, the rotating speed is controlled, and the high rotating speed (centrifugal solidification) is avoided to cause the grass seeds to be unable to fall through the screen hole. When the screening ring net 822 rotates, the grass seeds on the screening ring net 822 are subjected to the centrifugal force and the gravity of the grass seeds. Under the action of the centrifugal force, the grass seeds move outward on the screening ring net 822, and under the limitation of the multi-stage shunt arc plate 823, the grass seeds move outward step by step. In the moving process, the dispersed grass seeds fall through the mesh onto the conveying guide assembly 84 under the action of gravity. When the screening ring net 822 rotates and drives the grass seeds to move upward, the grass seeds continuously move downward on the screening ring net 822 until the grass seeds move to the outside of the screening ring net 822 or fall through the screen hole. The two conveying guide assemblies 84 on the two sides corresponding to the two dispersion assemblies 82 cover the square area, and the gradient spacing design of the screening ring net 822 and the shunt arc plate 823 makes the grass seed dispersion more uniform, improves the uniformity of sowing, and meets the strict requirements of high and steep slope repair on the distribution accuracy of grass seeds.

[0120] In the embodiment, the conveying guide assembly 84 comprises:

[0121] The fixed surface 841 is fixed on the side of the corresponding baffle 83 and is located at the bottom of the dispersion assembly 82. The bottom of the fixed surface 841 is provided with a vibration mechanism composed of a motor and a cam.

[0122] The flow guide surface 843 is located below the fixed surface 841, is attached to the baffle 83 on the side, and is connected with the fixed surface 841 through the buffer connecting surface 842. The rear end of the flow guide surface 843 is linear, the front end is linear on one side and is arc-shaped on the other side, and the two conveying guide assemblies 84 overlap on the side away from the baffle 83.

[0123] That is, after the grass seeds enter the guide surface 843 through the dispersing assembly 82, the vibration mechanism at the bottom of the fixed surface 841 directly contacts the guide surface 843 to generate high-frequency vibration, preventing the grass seeds from adhering to the guide surface 843 (reducing the blockage rate), buffering through the buffer connecting surface 842 to maintain the stability of the fixed surface 841 and the overall stability of the device, and under the action of vibration, the grass seeds are transported along the guide surface 843 into the grid area; the arc-shaped edge of the guide surface 843 is designed to make the grass seeds on the dispersing assembly 82 fall completely onto the guide surface 843, and the overlapping parts of the guide surface 843 are used to disperse part of the grass seeds to the side opposite to the rotation direction under the action of rotation when the grass seeds are transported to the initial position on the dispersing assembly 82, so as to collect the grass seeds in all directions, that is, the rear linear segment ensures the vertical falling of the grass seeds, and the front arc-shaped segment corresponds to the dispersing assembly 82 to realize the dead-angle-free collection of the grass seeds, and the guide surfaces 843 of the two conveying and guiding assemblies 84 exist overlapping areas in the horizontal direction to collect the grass seeds in all directions while ensuring the full coverage of the grass seeds in the grid area through the cross-guiding design.

[0124] In specific implementation, first, the vehicle body 1 is moved along the longitudinal direction of the slope protection square grid framework, and the front soil covering device 5, the grass seed conveying cavity 4 and the rear soil covering device 7 are sequentially operated and stopped in the moving process from bottom to top with a single square grid area as a standard. The front mixed soil storage cavity 2 delivers the planting soil to the dispersed conveying assembly 51 of the front soil covering device 5 through the spiral conveying pipe 6. After the soil is received by the top input port of the connecting frame 511, the guide inclined plate 512 forms a flow guide channel, the driving mechanism 53 drives the single-side spiral conveying shaft 514, and under the transmission of the control transmission group 513, the two spiral conveying shafts 514 are reversely rotated, the soil is dispersed by the inter-shaft shearing force and is conveyed to the self-adjusting soil covering assembly 52. The positioning frame 521 is communicated with the connecting frame 511, the limiting camber surface 522 and the adjusting camber surface 523 constitute a dynamic cavity, under the action of the counterweight, the adjusting camber surface 523 is self-adaptive to the slope inclination, the surface groove of the conveying shaft body 525 drives the soil to be vertically output through the output channel 524, and a uniform bottom soil covering layer is formed. Then, the grass seed conveying cavity 4 precisely guides the grass seeds into the rear end inner ring of the dispersed assembly 82 of the sowing device 8 through the feeding channel 85 (vertical section + arc section), the built-in coaxial reverse rotation mechanism of the connecting main body 811 drives the two dispersed assemblies 82 to be reversely rotated, the grass seeds are dispersed and thrown out under the action of the screening ring network 822 and the multi-stage shunt arc plate 823, the flow guide surface 843 realizes no-dead-angle collection through the arc-shaped edge design, the overlapping area of the two conveying guide assemblies 84 ensures that the grass seeds are fully covered in the square grid area, the bottom vibration mechanism of the fixed surface 841 prevents the grass seeds from adhering, and finally the grass seeds are precisely sowed into the square grid center area under the guidance of the baffle 83. Finally, the rear mixed soil storage cavity 3 supplies soil to the rear soil covering device 7, the rotating mechanism 76 adjusts the inclination angle of the conveying plate body 75 through the telescopic shaft driving connecting shaft 72, the pushing mechanism 77 drives the connecting piece 73 to reciprocate between the interval pieces 71, the planting soil on the conveying plate body 75 is uniformly covered on the surface of the grass seeds, and a reasonable covering structure of “thick at the bottom and thin at the top” is formed. Through the three-level collaborative mechanism of “conveying-dispersing-guiding”, the device realizes the precise positioning, uniform dispersion and directional conveying of the grass seeds in the complex terrain of the collapsible loess slope, effectively improves the sowing efficiency and grass seed utilization rate, reduces the sowing error, and effectively improves the seedling rate and slope consolidation effect.

[0125] The above describes only the preferred specific implementation of the present application, but the protection scope of the present application is not limited thereto, any person skilled in the art can make equivalent replacement or change according to the technical scheme and the inventive concept of the present application within the technical range disclosed by the present application, which should be covered in the protection scope of the present application.

Claims

1. A smart grass seeding device for vegetation restoration of collapsible loess slopes, characterized in that: include: The mobile vehicle (1) carries the seeding equipment and moves along the slope protection grid framework; The pre-mixed soil storage chamber (2) is fixed to the top of the front end of the mobile vehicle body (1); The post-mixing soil storage chamber (3) is fixed to the top of the rear end of the mobile vehicle body (1); The grass seed conveying chamber (4) is fixed on the top of the mobile vehicle body (1) and located between the front mixing storage chamber (2) and the rear mixing storage chamber (3); The front soil covering device (5) is fixed at the front end of the mobile vehicle body (1) and connected to the front mixing soil storage chamber (2) through the spiral conveying pipe (6); The rear soil covering device (7) is fixed at the rear end of the mobile vehicle body (1) and corresponds to the rear mixing soil storage chamber (3); The sowing device (8) is fixed at the bottom center of the mobile vehicle (1) and its top is connected to the grass seed conveying chamber (4).

2. The intelligent grass seed spreading device for vegetation restoration of collapsible loess slopes according to claim 1, characterized in that: The pre-covering device (5) includes: The distributed conveying assembly (51) is fixed to the front end of the mobile vehicle body (1); The self-adjusting soil covering component (52) is fixed to the bottom of the distributed conveying component (51) and is connected to the distributed conveying component (51); The drive mechanism (53) is fixed at one end of the distributed conveying component (51) and the self-adjusting soil covering component (52), respectively driving the distributed conveying component (51) and the self-adjusting soil covering component (52).

3. The intelligent grass seed spreading device for vegetation restoration of collapsible loess slopes according to claim 2, characterized in that: The distributed conveying assembly (51) includes: The connecting frame (511) is fixed to the front end of the mobile vehicle body (1), and the top is provided with an input port connected to the spiral conveying pipe (6); Two guide ramps (512) are symmetrically distributed and are inclinedly set at the top input port of the connecting frame (511); The control transmission assembly (513) is fixed at the bottom between the guide ramps (512); Two spiral conveyor shafts (514) are symmetrically distributed and connected to the two ends of the control transmission group (513) respectively, and rotate in opposite directions.

4. The intelligent grass seed spreading device for vegetation restoration of collapsible loess slopes according to claim 3, characterized in that: The self-adjusting soil covering component (52) includes: The positioning frame (521) is fixed to the bottom of the connecting frame (511) and is connected to the connecting frame (511); The limiting arc surface (522) is divided into two parts and fixed on both sides of the connection between the positioning frame (521) and the connecting frame (511); Adjust the arc surface (523), which is rotatably set on the outside of the limiting arc surface (522); The output channel (524) is fixed at the bottom of the limiting arc surface (522) and connects to the limiting arc surface (522). Counterweights are provided at both ends of the output channel (524), and the other side of the limiting arc surface (522) corresponds to the output channel (524). The conveying shaft (525) is rotatably disposed between the limiting arc surface (522) and the adjusting arc surface (523). The side wall of the conveying shaft (525) is provided with a plurality of annularly distributed grooves corresponding to the output channel (524), and the other side of the rear limiting arc surface (522) is at the same horizontal plane as the central axis of the conveying shaft (525).

5. The intelligent grass seed spreading device for vegetation restoration of collapsible loess slopes according to claim 1, characterized in that: The backfilling device (7) includes: Spacers (71) are arranged in a straight line and fixed to the rear end of the moving vehicle body (1); The connecting shaft (72) passes through multiple spacers (71) and is rotatably connected to the spacers (71); Multiple connectors (73) are arranged in a straight line and spaced apart from the spacers (71). There is a gap between the two sides of the connectors (73) and the spacers (71), and they are fixedly connected to the connecting shaft (72). Connecting plate (74), connecting multiple connectors (73); Multiple conveyor plates (75) are arranged in a straight line and fixed on the side of the connecting plate (74) opposite to the connecting piece (73); The rotating mechanism (76) is fixed to the side of the post-mixed soil storage cavity (3) and is fixedly connected to one end of the connecting shaft (72) via a telescopic shaft; The pushing mechanism (77) is fixed on the other side of the post-mixing soil storage cavity (3) and is rotatably connected to the other end of the connecting shaft (72).

6. The intelligent grass seed spreading device for vegetation restoration of collapsible loess slopes according to claim 1, characterized in that: The spreading device (8) includes: The control connection component (81) is fixed to the bottom of the mobile vehicle body (1) and its top is connected to the grass seed conveying chamber (4); Two distributed components (82) are provided vertically and vertically, and are connected to the side of the control connection component (81); Two baffles (83) are symmetrically distributed and fixed on both sides of the bottom of the moving vehicle body (1), located on both sides of the dispersing assembly (82); The conveying guide component (84) is provided in two asymmetrical distributions, respectively located below the corresponding dispersing component (82) and connected to the corresponding baffle (83); The feeding channel (85) has two sections, consisting of a vertical section and an arc section. The vertical section passes through the control connection assembly (81) and is connected to the grass seed conveying chamber (4). The arc section connects the corresponding vertical section and the dispersing assembly (82).

7. The intelligent grass seed spreading device for vegetation restoration of collapsible loess slopes according to claim 6, characterized in that: The control connection component (81) includes: The connecting body (811) is fixed to the bottom of the mobile vehicle body (1) and has a coaxial reversing mechanism inside, which is connected to the dispersing component (82). The conveying gap (812) is located at the rear end of the connecting body (811) and corresponds to the feeding channel (85).

8. The intelligent grass seed spreading device for vegetation restoration of collapsible loess slopes according to claim 7, characterized in that: The dispersion component (82) includes: The inner ring of the connecting ring (821) is connected to the coaxial reversing mechanism in the connecting body (811); Screening ring (822) is fixed on the outer ring of connecting ring (821); The flow divider arc plate (823) is arranged in multiple groups from the center outwards. Each group has multiple groups arranged in a ring, and the flow divider arc plate (823) in the outer group corresponds to the flow divider arc plate (823) in the inner group.

9. The intelligent grass seed spreading device for vegetation restoration of collapsible loess slopes according to claim 8, characterized in that: The delivery guide assembly (84) includes: The fixed surface (841) is fixed to the side of the corresponding baffle (83) and located at the bottom of the dispersion component (82). The bottom of the fixed surface (841) is provided with a vibration mechanism, which consists of a motor and a cam. The guide surface (843) is located below the fixed surface (841), and its side is in contact with the baffle (83). It is connected to the fixed surface (841) through the buffer connection surface (842). The rear end of the guide surface (843) is straight, the front end is straight at the connection point with the buffer connection surface (842), and the other side is arc-shaped, corresponding to the dispersing component (82). The two conveying guide components (84) overlap on the side away from the baffle (83).

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