Crossing type grass laying method and grass laying mechanism

Abstract

The application discloses a cross type grass paving mode, which comprises a cross type blanking assembly, a conveying assembly and a grass pressing assembly. The cross type blanking assembly is used for cross stacking the scattered grasses to form a grass mat. The grass mat is conveyed to the ground by the conveying assembly, and then the grass mat is orderly pressed in the desert by the grass pressing assembly, so that the automatic paving of the windproof and sand-fixing turf is realized. The work efficiency of the small grass paving machine is greatly improved, and the grass paving cost is reduced.

Description

Technical Field

[0001] This invention relates to the operation mode and structure of agricultural mechanization, and more particularly to a cross-type straw laying method and a cross-type straw laying mechanism. Background Technology

[0002] Planting vegetation, especially plants adapted to the desert environment, in desert regions to implement a series of measures for ecological restoration and environmental improvement has profound significance, mainly reflected in the following aspects: First, ecological restoration and environmental protection: vegetation can fix sand and prevent sand dune movement and sandstorms. Plants can also absorb carbon dioxide and release oxygen through photosynthesis, helping to reduce the content of harmful gases in the air and improve air quality. Plants can absorb water from the soil and release it into the atmosphere through transpiration, promoting water cycle, increasing rainfall, and improving the quality of groundwater and surface water. Second, enhancing ecological balance and biodiversity: the increase of desert vegetation provides habitats and food sources for animals, helping to attract more plants and animals to the region, increasing biodiversity and ecosystem stability. At the same time, vegetation, as a producer, plays an important role in the ecosystem. Its existence provides the basic conditions for the survival of other organisms and helps maintain the integrity and stability of the entire food chain. Third, creating economic value and social benefits: desert vegetation can promote the development of local tourism. The unique desert plant landscape and ecological environment can attract tourists to visit and experience it.

[0003] Currently, desert turfing is mostly done manually, which is cumbersome and labor-intensive. For large-scale turfing and sand stabilization, traditional methods are inefficient and not conducive to widespread adoption. Furthermore, desert winds are strong, and the laid grass is easily damaged by the wind. The existing turfing methods cannot cope with the complex and ever-changing desert environment, and current turfing methods and equipment need further improvement. Summary of the Invention

[0004] The technical problem to be solved by the present invention is to provide a cross-type grass laying method that can automatically form a grass curtain and press it into the desert, as well as a corresponding grass laying mechanism.

[0005] To solve the above-mentioned technical problems, the technical solution of the present invention is:

[0006] A cross-laying method for grass involves using a cross-feeding component to lay loose grass in an overlapping manner on a conveying component. As the conveying component moves as a whole, it transports the overlapping loose grass to the ground to form a grass curtain. A grass pressing component then presses the grass curtain into the sand to complete the laying process.

[0007] Preferably, the conveying speed of the conveying component is adjustable.

[0008] A cross-type grass laying mechanism includes a cross-feeding component, a conveying component, and a grass pressing component. The cross-feeding component lays loose grass in a cross-overlapping manner on the conveying component. The conveying component transports the cross-overlapping loose grass to the ground to form a grass curtain. The grass pressing component presses the grass into the sand to complete the laying.

[0009] Preferably, the cross-feeding assembly includes a guide plate and a cross plate, the cross plate being disposed below the feed inlet at the lower end of the guide plate, the cross plate oscillating periodically, and during oscillation, the edge of the cross plate's outlet and the edge of the feed inlet forming an angle in the horizontal plane.

[0010] Preferably, the two ends of the cross plate are movably mounted on a pair of cross guide rails, the cross guide rails comprising two sets of guide rails that slide back and forth, the two sets of guide rails having different sliding speeds.

[0011] Preferably, the conveying assembly is a speed-adjustable conveyor belt.

[0012] Preferably, the straw pressing assembly includes a lifting mechanism and a laying disc mounted on the lifting mechanism, wherein the surface of the laying disc is perpendicular to the conveying direction of the conveying assembly.

[0013] Preferably, a shock-absorbing component is provided between the lifting mechanism and the laying tray.

[0014] Preferably, the cross-feeding assembly is provided with a grass-scattering device above it to disperse the grass. The grass-scattering device provides grass to the cross-feeding assembly. The grass-scattering device includes a spiked cylinder formed by multiple ratchet plates arranged coaxially. The central drive shaft of the spiked cylinder is fixedly connected to each of the ratchet plates, and the arrangement of each ratchet plate is different.

[0015] After adopting the above solution, the present invention has the following characteristics:

[0016] The cross-stacking method and mechanism designed in this invention can stack loose straw materials in a cross pattern to form a straw mat, which is then laid on the desert surface via a conveying component. The straw mat is then pressed down in an orderly manner by a pressing component, achieving automatic laying of windbreak and sand-fixing turf. This significantly improves the working efficiency of small-scale straw-laying machinery, reduces stacking costs, enhances stacking quality, reduces labor costs, and increases the stability and reliability of the work process. The equipment and method involved in this solution are not only simple to operate and have low manufacturing costs, but also possess advantages that large-scale straw-laying machinery lacks, such as small size, flexible use, and high mobility. Its application can solve problems such as high labor intensity from manual straw insertion and inconsistent straw pressing depth, greatly improving the speed of straw laying and reducing the labor intensity of workers. Attached Figure Description

[0017] Figure 1 This is a flowchart of the grass laying method of the present invention;

[0018] Figure 2 This is a perspective view of the grass-laying mechanism of the present invention;

[0019] Figure 3 This is a bottom view of the cross-feeding assembly of the present invention;

[0020] Figure 4 This is a perspective view of the cross-feeding component of the present invention;

[0021] Figure 5 This is a perspective view of the cross guide rail of the present invention;

[0022] Figure 6 This is a perspective view of the conveying component of the present invention;

[0023] Figure 7 This is a perspective view of the grass-pressing component of the present invention;

[0024] Figure 8 This is a perspective view of the shock-absorbing component of the present invention;

[0025] Figure 9 This is a perspective view of a grass-laying vehicle that utilizes the grass-laying mechanism of this invention;

[0026] Figure 10 This is a 3D view of the hay storage area of ​​the hay-laying cart;

[0027] Figure 11 This is a bottom view of the hay-laying cart. Detailed Implementation

[0028] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0029] This invention provides a cross-laying method, such as... Figure 1 As shown, during laying, the feeding structure lays the loose grass in a crisscross pattern on the conveying assembly. The conveying assembly moves along with the grass-laying vehicle, transporting the overlapping grass to the ground to form a grass curtain. The conveying speed of the conveying assembly is adjustable. Because the speed of the cross-feeding assembly is relatively stable, the amount of loose grass falling per unit area on the conveyor belt can be adjusted by regulating the conveyor belt speed. This allows for the creation of grass curtains of different densities based on different geological features or vegetation characteristics. The speed of the grass-laying vehicle directly determines the flatness of the grass curtain on the ground, leaving space for the pressing depth of the pressing assembly. The pressing assembly then presses the grass into the sand to complete the laying. Furthermore, the depth of the pressing assembly can be adjusted by controlling the speed and driving time of the screw motor, ensuring the grass curtain reaches a sufficient depth to guarantee the laying effect.

[0030] This invention also discloses a cross-type grass-laying mechanism, through which the above-mentioned grass-laying method can be achieved, specifically as follows: Figure 2-8As shown, the grass laying mechanism includes a cross-feeding component, a conveying component, and a grass pressing component. The cross-feeding component lays the loose grass in a cross-overlapping manner on the conveying component. The conveying component transports the cross-overlapping loose grass to the ground to form a grass curtain. The grass pressing component presses the grass into the sand to complete the laying.

[0031] Specifically, the cross-feeding assembly includes a guide plate 1 and a cross plate 2. The guide plate 1 is an inclined flat plate, and its angle is adjustable. The guide plate 1 can be mounted on the frame of a desert paving vehicle equipped with a cross-feeding mechanism via an angle adjuster 11. The angle adjuster 11 can be a pair of connecting plates 110 with arc-shaped grooves 111. The angle adjuster 11 is fixed to the frame with screws, and the guide plate 1 is hinged to the angle adjuster 11. The angle of the guide plate is adjusted and fixed by tightening and loosening the locking screws 112. The guide plate 1 is adjusted to a suitable sliding angle according to the moisture content and type of different batches of forage. After the forage is broken up, it falls onto the guide plate 1 and slides down the guide plate 1 under the action of gravity. To prevent loose forage from sliding off the sides of the guide plate 1, guide strips 12 can be set on the edges of the guide plate 1. The lower end of the guide plate 1 is the feeding port 13. The cross plate 2 is located below the feed inlet 13 at the lower end of the guide plate 1. The cross plate 2 swings periodically. During the swing, the edge of the discharge port 21 of the cross plate 2 and the edge of the feed inlet 13 form an angle in the horizontal plane, causing the cross plate 2 to guide the loose grass to fall and overlap each other. To ensure that the center of the cross plate 2 is always located below the center of the guide plate 1 for optimal feed effect, the two ends of the cross plate 2 can be movably mounted on a pair of cross guide rails 3. The cross guide rails 3 include two sets of guide rails that slide back and forth, namely the first guide rail 31 and the second guide rail 32. The sliding speeds of the two sets of guide rails are different, and the difference in the speed of the guide rails causes the cross plate 2 on the guide rail to form various angles with the edge of the feed inlet 13. The difference in sliding speed of the guide rails can be equal in speed but opposite in direction. That is, when the first guide rail 31 moves forward, the second guide rail 32 simultaneously retracts backward. When the first guide rail 31 reaches its forward limit position, it begins to retract, while the second guide rail 32 reaches its rear limit position and begins to move forward. When the second guide rail 32 reaches its forward limit position, their directions are reversed again, and the two sets of guide rails alternate forward in this cyclical manner. When the loose grass falls onto the cross plate 2, due to the different extension and retraction of the two sets of guide rails, the cross plate 2 provides support for the angle of the loose grass's fall and prepares for the grass to cross and overlap. Therefore, the two sets of guide rails are collectively referred to as the cross guide rail 3. The cross guide rail 3 can be installed with electromechanical control equipment and operated synchronously, such as a synchronously controlled hydraulic cylinder or a synchronously controlled push rod. By synchronously outputting different extension and retraction amounts to the two sets of guide rails, the swinging of the cross plate 2 can be achieved. The cross guide rail 3 can also be implemented using a sector gear, and the sector gear scheme will be described in detail below. In this embodiment, the cross guide rail 3 is extended and retracted by the meshing of gears driven by a DC motor. Specifically, each set of guide rails includes a primary gear set and a secondary gear set. The primary gear set includes a driving wheel 34 fixedly connected to and coaxially arranged with the output shaft of the DC motor 33 and driven wheels 35 located on both sides of the driving wheel 34. The driving wheel 34 meshes with the two driven wheels 35 at the same time.The secondary gear set includes two sector gears 36 and a double-sided rack 37 located at the center of the two sector gears 36. Both sides of the double-sided rack 37 can mesh with the sector gears 36 to form a gear-rack transmission. Each sector gear 36 is coaxially and fixedly connected to a driven wheel 35 in the primary gear set and rotates synchronously with the driven wheel 35. A slider 38 is fixedly connected to the double-sided rack 37, or the slider 38 is integrally formed with the rack. A guide rail seat 39 is provided below the slider 38, and a sliding bar matching the guide rail seat 39 is provided on the bottom surface of the slider 38. The slider 38 is slidably mounted on the guide rail seat 39 via the sliding bar. When the DC motor 33 drives the driving wheel 34 to rotate, it simultaneously drives the two driven wheels 35 to rotate in the same direction, thus driving the sector gears 36 coaxially connected to them to rotate in the same direction. Since the sector gears 36 are distributed on both sides of the double-sided rack 37, the two sector gears 36 will drive the rack to move in opposite directions, one in the forward direction and the other in the reverse direction. In actual operation, two sector gears 36 mesh with the double-sided rack 37 successively, driving the rack 37 to extend or retract the slider 38. When one sector gear 36 is engaged with the rack 37, the teeth of the other sector gear 36 disengage from the rack 37, ceasing meshing. The alternating engagement of the two sector gears 36 with the rack 37 achieves the reciprocating motion of the slider 38, i.e., the extension and retraction of the guide rail. Since the two sets of guide rails need to slide in opposite directions after achieving reciprocating motion, this function can be achieved by continuously adjusting the two DC motors 33 to find the engagement point, enabling the two guide rails to extend and retract alternately. A cross plate 2 is installed on the guide rail. Specifically, the cross plate 2 can be installed on the slider 38. During installation, a strip groove can be set on the cross plate 2, for example, a horizontal strip groove can be set at each end of the cross plate 2. Then, it is loosely installed on the slider 38 by the cross plate mounting bolt 30. The cross plate mounting bolt 30 passes through the strip groove and is inserted into the upper surface of the cross guide rail 3. The cross plate 2 can rotate freely around the cross mounting bolt 30. When the slider 38 slides, if the slider 38 of the first guide rail 31 drives one end of the cross plate 2 forward, the slider 38 of the second guide rail 32 drives the other end of the cross plate 2 backward. The cooperation of the cross guide rails 3 pulls the cross plate 2 so that it forms an angle with the edge of the grass guide plate 1. When the grass falls on the grass guide plate 1, it is affected by the angle of the cross plate 2, so that the grass can be distributed in a front-to-back manner, forming a cross-overlapping state, which improves the connection of the grass curtain.

[0032] The conveying assembly is installed directly below the cross-feeding assembly. The conveying assembly can be a conveyor belt 40. The conveying assembly includes a conveyor motor 41 that drives the conveyor belt 40, a drive shaft 42 and a driven shaft 43 located at both ends of the conveyor belt 40, and a synchronous pulley structure that transmits the output of the conveyor motor 41 to the drive shaft 42. Specifically, the conveyor motor 41 is fixedly mounted on the vehicle frame through a conveyor motor support seat. A small pulley 45 is coaxially fixed to the output shaft of the conveyor motor 41. A small belt 44 is sleeved on the small pulley 45. The other end of the small belt 44 is sleeved on the drive shaft 42. When the conveyor motor 41 is driven, the small pulley 45 acts as the drive wheel and drives the drive shaft 42 to rotate through the small belt 44. The transmission ratio can be 2, so the synchronous pulley mechanism also acts as a speed reducer structure. The drive shaft 42 and driven shaft 43 are also fixedly mounted on the vehicle frame via bearings 46 and bearing seats 47 to support the conveyor belt 40. When the conveyor motor 41 drives the conveyor belt 40, the normal operation of the conveyor belt 40 is achieved through the cooperation of the drive shaft 42 and driven shaft 43. Furthermore, in order to control the density of the resulting straw mat, the conveyor assembly can be designed as a speed-adjustable conveyor belt 40. This can be achieved by controlling the speed output of the conveyor motor or by adding a switchable gear set. After the loose grass passes through the cross-feeding assembly, it falls onto the conveyor belt 40. The advancement of the conveyor belt 40 causes the continuously falling loose grass to form a straw mat, completely realizing the conversion from loose grass to straw mat, and the grass falls onto the desert surface as the conveyor belt 40 continues to advance.

[0033] As the paving vehicle travels at a constant straight-line speed, the conveying assembly forms the overlapping loose grass into a straw mat and lays it flat on the desert surface. The straw mat covering the desert surface needs to be pressed into the sand by the pressing assembly to prevent it from being blown away by the wind. The pressing assembly includes a lifting mechanism and a laying disc 51 mounted on the lifting mechanism. The surface of the laying disc 51 is perpendicular to the conveying direction of the conveying assembly. Specifically, in this embodiment, the lifting mechanism is a diamond-shaped lifting mechanism. The diamond-shaped lifting mechanism includes a ball screw motor module that provides power and a diamond-shaped support 52 that converts the axial rotation of the screw 55 into lifting motion. The diamond-shaped support 52 includes four rod-shaped support members of equal length arranged in a diamond shape. Vertically adjacent support members are hinged to each other and the connection is movable to ensure that the two support members can be opened and closed around the hinge point. At the same time, a threaded fixing seat 53 matching the screw 55 is fixed at the connection. Horizontally adjacent support members can be directly hinged to each other, or further, simultaneously hinged to a horizontal block 54, on which the laying disc 51 is mounted. The ball screw motor module includes a horizontally arranged screw 55 and a screw motor 56 coaxially connected to the screw 55. Both ends of the screw 55 are mounted on the vehicle frame via bearings and mounting seats 57 and move horizontally with the laying vehicle. One threaded fixing seat 53 of the diamond bracket 52 is fixed to the mounting seat 57, and the other threaded fixing seat 53 is sleeved on the screw 55. When the screw motor 56 drives the screw 55 to rotate around its axis, since one end of the diamond bracket 52 is fixed, the other end will move back and forth along the screw 55, thereby causing the diamond bracket 52 to change between wide and narrow, which in turn causes the horizontal block 54 to move up and down. The laying vehicle can stop appropriately during straw compaction, or the compaction can be scheduled when the vehicle speed is low. Depending on the sandy terrain, the rotation of the screw motor 56 is controlled to control the downward stroke of the laying disc 51, ensuring the straw mat is pressed into the designated depth and the straw mat laying is completed. Furthermore, to prevent longitudinal overload when encountering obstacles such as hard rocks during laying, a shock-absorbing component 58 can be installed between the lifting mechanism and the laying disc 51. Specifically, two parallel mounting strips 581 extend downwards from the horizontal block 54, and the laying disc 51 is positioned between the mounting strips 581. The laying disc 51 is mounted on a central shaft 582, with four legs 583 extending outwards from both ends of the central shaft 582. The central shaft 582 is generally "I"-shaped, and each leg 583 is mounted on the outer side of the mounting strip 581 via a spring 584. When an obstacle is encountered, the spring 584 is compressed, and the central shaft 582 and the laying disc 51 are lifted as a whole to achieve shock absorption.

[0034] In addition, a grass-scattering device can be installed above the cross-feeding assembly to disperse the grass. The main structure of the grass-scattering device 8 is a spiked cylinder 82 formed by multiple ratchet wheels 81 arranged coaxially. The central drive shaft 83 of the spiked cylinder 82 is fixedly connected to each ratchet wheel 81. The ratchet wheels 81 act as active grass-scattering plates to disperse the grass. The arrangement of each ratchet wheel 81 is different, and the spikes of the ratchet wheels 81 are staggered. When the spiked cylinder 82 rotates, the ratchet wheels 81 can fully disperse, separate, and scrape off the grass. Due to inertia, the dispersed grass rotates once under the drive of the ratchet wheels 81 and falls onto the grass guide plate 1 of the cross-feeding assembly, successfully preventing the grass from tangling. The spiked cylinder 82 is rotatably mounted on the frame 6 of the automatic paving vehicle through bearings at both ends. The spiked cylinder 82 is also equipped with a synchronous pulley 84 coaxial with the ratchet wheels 81. The spiked cylinder motor 85 is installed on the frame 6, and the spiked cylinder motor 85 and the synchronous pulley 84 are synchronized through a belt 86. Furthermore, a gear set can be added between the spiked barrel motor 85 and the synchronous pulley 84 to achieve a speed reduction effect, or the speed reduction effect can be achieved directly by using the ratio between the spiked barrel motor 85 and the synchronous pulley 84. In this embodiment, the transmission ratio is 2. When the automatic paving vehicle starts working, the spiked barrel motor 85 starts running, and the synchronous pulley 84 provides power to the central drive shaft 83 of the spiked barrel 82. Since the bottom surface of the hay storage area has an inclined angle, the scattered hay can slide downwards under the action of gravity. At the same time, due to the action of the ratchet 81 on the surface of the spiked barrel 82, the hay is continuously transported downwards.

[0035] The aforementioned cross-type mulching mechanism can be applied to desert mulching vehicles, such as... Figure 1-11 As shown, in addition to the aforementioned cross-type paving mechanism, the desert paving vehicle also includes a vehicle frame 6 for supporting and installing various vehicle assembly components, a hay storage area 7 for storing large quantities of hay, and a hay-loosening device 8 that carries the hay out of the hay storage area, breaks it up, and then transports it to the cross-feeding assembly.

[0036] Specifically, to ensure the sturdiness and structural strength of the automated paving vehicle, the frame 6 can be made of galvanized material, which has strong durability and can meet the requirements of stable operation of the automated paving vehicle in harsh working environments. The upper frame 61 of the frame 6 is also equipped with a transparent acrylic shell, which effectively prevents external wind and sand from adversely affecting the automated paving vehicle, while also allowing direct monitoring of the remaining amount of forage inside the vehicle and the stable operation of various components. A vision forming sensor 63 can also be installed on the front acrylic plate of the automated paving vehicle to effectively observe road conditions and transmit road information in a timely manner. An infrared sensor 64 can be installed on the rear acrylic plate of the automated paving vehicle to effectively receive signals emitted from the outside and control the operation of the control motors of various components inside the automated paving vehicle.

[0037] The hay storage area 7 is installed on the upper part of the vehicle frame 6 and is used to store a large amount of unprocessed hay. The bottom plate 71 of the hay storage area is sloping, and a hay-loosening device 8 is installed near the lower edge of the bottom plate to guide and disperse the hay from the hay storage area. A cross-feeding assembly is installed below the hay-loosening device 8. The hay storage area 7 is composed of four plates of different sizes spliced ​​together: the bottom surface 71 and the three side surfaces 72 other than the hay-feeding opening. To ensure the smoothness of the plate surface, the plates can all be made of stainless steel, and the plates can be connected by welding. A bracket can be constructed below the bottom plate 71 using square tubes 73 with an inner diameter of 20mm x 20mm and a thickness of 2mm to support the hay storage area 7. To avoid excessive hay accumulation causing difficulties in unloading, in this embodiment, the maximum depth of the hay storage area 7 is 314mm, the minimum is 165mm, and the tilt angle is 18°. Meanwhile, an image recognition sensor 74 can be installed at the top of the hay storage area 7 to monitor the storage and conveying status of the hay storage area 7 in a timely and effective manner. A 10mm wide outlet 75 is reserved at the bottom of the hay storage area 7 near the hay distributing device 8 to facilitate cooperation with the hay distributing device 8.

[0038] The vehicle frame 6 also houses the vehicle drive unit and travel rollers. Specifically, in addition to the upper frame 61 used for assembling various vehicle assembly components, the vehicle frame 6 includes a chassis frame 91. The chassis frame 91 houses the chassis drive structure, the core of which can be composed of four sets of motor-driven gear pairs 97. The chassis frame 91 of the chassis drive structure can be constructed from U-shaped steel sections, providing strong stability. The motor-driven gear pairs 97 are fixed to the chassis frame 91 via shafts 92, bearings, and chassis bearing seats 93 using screws and nuts. The use of four independent sets of motor-driven gear pairs 97 allows the vehicle to be more flexible and controllable to adapt to the changing road conditions in the desert, while also making the vehicle's movement more stable. When the vehicle needs to travel in a straight line, the four sets of motor-driven gear pairs can maintain the same speed. When the automated paving vehicle needs to turn, differential slip steering is achieved by assigning different speeds to the four sets of motor-driven gear pairs 97. During installation, the axle of wheel 94 can be kept stationary relative to the position of chassis frame 91 and perpendicular to the direction of vehicle travel. The introduction of gear pair 95 mainly increases the torque of wheel motor 96, giving the vehicle better driving capability.

[0039] Furthermore, all motors involved in this solution can be equipped with remote control modules, which can be used to control the motor's start-up and speed regulation, thereby enabling the stable operation of various functional components of the automatic paving vehicle under remote control.

[0040] The above description is merely a preferred embodiment of the present invention and does not constitute any limitation on the technical scope of the present invention. Therefore, any changes or modifications made in accordance with the claims and description of the present invention should fall within the scope of the patent of the present invention.

Claims

1. A cross-type grass-laying mechanism, characterized in that... The system includes a cross-feeding assembly, a conveying assembly, and a pressing assembly. The cross-feeding assembly lays loose grass in a cross-overlapping pattern on the conveying assembly, which then transports the overlapping grass to the ground to form a grass curtain. The pressing assembly presses the grass into the sand to complete the laying process. The cross-feeding assembly includes a guide plate and a cross plate. The cross plate is located below the feed inlet at the lower end of the guide plate. The cross plate oscillates periodically, and during oscillation, the edges of the discharge inlet and the feed outlet of the cross plate form an angle in the horizontal plane. The two ends of the cross plate are movably mounted on a pair of cross guide rails. The cross guide rails include two sets of guide rails that slide back and forth at different speeds. Each set of guide rails includes a primary gear set and a secondary gear set. The primary gear set includes a driving wheel fixedly connected to and coaxially arranged on the output shaft of a DC motor, and driven wheels located on both sides of the driving wheel. The driving wheel meshes with both driven wheels simultaneously. The secondary gear set includes two sector gears and a gear located at the center of the two sector gears. The device comprises a double-sided rack, the two sides of which can mesh with the sector gears to form a rack and pinion transmission. Each sector gear is coaxially and fixedly connected to a driven wheel in the first-stage gear set and rotates synchronously with the driven wheel. A slider is fixedly connected to the double-sided rack, and a guide rail seat is provided below the slider. The slider is slidably mounted on the guide rail seat. A cross plate is mounted on the slider. A horizontal strip groove is provided at each end of the cross plate. The cross plate is loosely mounted on the slider by a cross plate mounting bolt. The cross plate mounting bolt passes through the strip groove and is inserted into the upper surface of the cross guide rail. The cross plate can rotate freely around the cross mounting bolt. A grass-scattering device is provided above the cross feeding assembly to scatter grass. The grass-scattering device includes a spiked cylinder formed by multiple ratchet plates arranged coaxially. The central drive shaft of the spiked cylinder is fixedly connected to each ratchet plate. The arrangement of each ratchet plate is different.

2. The cross-type straw-laying mechanism according to claim 1, characterized in that: The conveying assembly is a speed-adjustable conveyor belt.

3. The cross-type grass-laying mechanism according to claim 1, characterized in that: The straw pressing assembly includes a lifting mechanism and a laying disc mounted on the lifting mechanism, the surface of which is perpendicular to the conveying direction of the conveying assembly.

4. A cross-type grass-laying mechanism according to claim 3, characterized in that: A shock-absorbing component is provided between the lifting mechanism and the laying tray.

5. A cross-laying method using any one of the cross-laying mechanisms described in claims 1-4, characterized in that: The cross-feeding component lays the loose grass in a cross-overlapping manner on the conveying component. As the conveying component moves as a whole, it transports the cross-overlapping loose grass to the ground to form a grass curtain. The grass pressing component presses the grass curtain into the sand to complete the laying.

6. The cross-laying method according to claim 5, characterized in that: The conveying speed of the conveying component is adjustable.

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