Shallow ploughing and soil loosening device for forest grass restoration

Abstract

The invention discloses a shallow ploughing and soil loosening device for forest grass remediation. The shallow ploughing and soil loosening device comprises a supporting frame, a soil layering mechanism and a soil crushing mechanism. The supporting frame comprises two unit frame bodies which are arranged at intervals in the vertical direction, and a soil loosening space is formed between the two unit frame bodies. A set of soil layering mechanism is mounted on each unit frame body and is used for effectively separating a soil layer to be treated within a set depth range from soil on the upper surface layer and soil on the lower deep layer and guiding the soil into the soil loosening space. The soil layering mechanism is composed of a first rotary driving mechanism, a horizontally-arranged first rotating rod and a plurality of soil shifting forks fixed to the first rotating rod, and the driving mechanism drives the first rotating rod to rotate around a shaft, so that the soil shifting forks complete soil cutting and separation. The soil breaking mechanism is installed on the supporting frame, located in the soil loosening space between the two unit frame bodies and used for conducting breaking and loosening operation on soil which is separated and enters the space. According to the invention, the influence of shallow ploughing operation on surface soil is reduced.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of soil loosening devices, and particularly relates to a shallow tillage and soil loosening device for forest and grass restoration. BACKGROUND

[0002] The shallow tillage and soil loosening process in the forest and grass restoration operation aims to improve the air permeability and water permeability of sandy and dry and hardened soil, while strictly limiting the tillage depth (usually 5-20 cm) to avoid disturbing the deep original soil structure. However, the existing shallow tillage and soil loosening device generally causes excessive turning and damage to the surface soil during operation, resulting in the breaking of soil aggregates and the loosening of the surface cover. In severe environments with serious wind and water erosion, the surface soil after loosening lacks stable protection and is extremely easy to be lost under the action of strong wind or heavy rainfall, which not only reduces the ecological restoration effect of shallow tillage, but also may exacerbate the local water and soil loss problem, restricting the restoration and growth of forest and grass vegetation.

[0003] Therefore, the present application provides a shallow tillage and soil loosening device for forest and grass restoration to avoid the loss of surface soil caused by shallow tillage and soil loosening, resulting in poor restoration effect. SUMMARY

[0004] In order to overcome the shortcomings of the prior art, the purpose of the present application is to provide a shallow tillage and soil loosening device for forest and grass restoration, which can reduce the influence of shallow tillage operation on the surface soil and avoid the loss of surface soil, resulting in poor restoration effect.

[0005] The purpose of the present application is achieved by adopting the following technical solutions:

[0006] A shallow tillage and soil loosening device for forest and grass restoration comprises:

[0007] A support frame comprises two unit frame bodies, which are arranged at intervals in the vertical direction and form a soil loosening space;

[0008] A soil layering mechanism is installed on each of the two unit frame bodies, and the unit frame bodies and the soil layering mechanisms are arranged in sequence along the working path. The two soil layering mechanisms are used to separate the soil between them from the remaining soil layer, so that the soil can enter the soil loosening space. The soil layering mechanism comprises a first rotary driving mechanism, a first rotating rod and a plurality of soil shovels. The first rotary driving mechanism is installed on the unit frame body. The first rotating rod extends in the horizontal direction. One end of the first rotating rod is drivingly connected with the first rotary driving mechanism, and the other end of the first rotating rod is rotatably connected with the unit frame body. The first rotary driving mechanism is used to drive the first rotating rod to rotate around the axis of the first rotating rod. A plurality of soil shovels are installed on the first rotating rod to rotate with the first rotating rod;

[0009] A soil crushing mechanism is mounted on the support frame and located in the soil loosening space, and is used for crushing and loosening the separated soil on the working path.

[0010] Further, the plurality of soil forks are sequentially and spacedly distributed along the axial direction and the circumferential direction of the first rotating shaft, and the two first rotating shafts relatively rotate around their own axes to drive the soil forks belonging to different rotating shafts to relatively rotate, so that the shallow tillage and soil loosening device for forest and grass restoration has a movement trend along the working path.

[0011] Further, the soil layering mechanism further comprises a plurality of blocking plates, and the plurality of blocking plates are mounted on the unit frame body and sequentially and spacedly arranged along the axial direction of the first rotating shaft, the blocking plates extend around the circumferential direction of the first rotating shaft and are spacedly arranged with the first rotating shaft, and the blocking plates are used for blocking the crushed stones on the soil separation path from entering the soil loosening space.

[0012] Further, the support frame comprises a linear telescopic device, and two ends of the linear telescopic device are respectively connected to the two unit frame bodies, and the linear telescopic device is used for adjusting the interval between the two unit frame bodies.

[0013] Further, the soil crushing mechanism comprises a second rotating shaft and a plurality of soil crushing teeth, the second rotating shaft extends in the horizontal direction, and two ends of the second rotating shaft are respectively rotatably connected to one of the unit frame bodies; and the plurality of soil crushing teeth are sequentially and spacedly distributed along the circumferential direction and the axial direction of the second rotating shaft.

[0014] Further, the soil crushing mechanism further comprises a second rotating driving mechanism, the second rotating driving mechanism is mounted on one of the support frames and drivingly connected with the second rotating shaft to drive the second rotating shaft to drive the soil crushing teeth to rotate around the axis of the second rotating shaft.

[0015] Further, the shallow tillage and soil loosening device for forest and grass restoration further comprises a compression roller, the compression roller is mounted on the support frame and extends in the horizontal direction, the compression roller is spacedly arranged with the unit frame body in the vertical direction, and the compression roller is used for abutting the ground.

[0016] Further, the support frame is provided with a plurality of height adjusting holes, and the plurality of height adjusting holes are sequentially and spacedly distributed along the vertical direction, the compression roller is rotatably inserted into the height adjusting hole, and the height adjusting hole is used for adjusting the interval between the compression roller and the unit frame body.

[0017] Further, the pressing roller has a water storage cavity extending along the axial direction of the pressing roller, and a plurality of water leakage holes arranged along the axial direction of the pressing roller and communicating with the water storage cavity.

[0018] Further, the shallow tillage device for forest and grass restoration further comprises a restoration roller installed on the support frame and used for abutting against the ground, and the restoration roller and the support frame are sequentially distributed along the working path, and the restoration roller is used for restoring the surface soil damaged when the support frame travels along the working path.

[0019] Compared with the prior art, the present application has the following beneficial effects:

[0020] 1. The two soil layering mechanisms are respectively installed on two unit frame bodies arranged in the vertical direction, which allows the two soil layering mechanisms to be independently installed and adjusted in space, thereby controlling the vertical distance between the soil forks belonging to the two different soil layering mechanisms. This distance directly determines the thickness of the target soil layer that is separated and introduced into the loosening space, so that the device can flexibly adapt to the differentiated requirements for shallow tillage depth (such as 5-10 cm or 10-20 cm) in different forest and grass restoration scenarios, improving the versatility and operation accuracy of the equipment. The rigid support frame formed by the two unit frame bodies provides a stable and non-interfering installation basis for the upper and lower soil layering mechanisms. This not only ensures that the two mechanisms can perform layering cutting operations synchronously and stably under complex soil conditions, but also forms a controlled operation chamber for the soil loosening space, effectively guiding the separated soil into the predetermined area and preventing the soil from spreading disorderly around during the loosening process, thereby improving the orderliness and efficiency of the operation. By integrating the soil layering mechanisms into independent unit frame bodies, each mechanism can be independently maintained, repaired or replaced. For example, different strength or angle of the tines can be selected for the upper and lower soil forks according to the hardness difference of the soil, thereby reducing the maintenance complexity of the overall equipment.

[0021] 2. The plurality of soil forks are installed on the first rotating rod to follow the rotation of the first rotating rod, thereby forming a stable and controllable cutting motion trajectory. This rotary cutting method causes less disturbance to the soil structure than the reciprocating or vibrating cutting method, and can more clearly separate the target soil layer from the upper and lower layers of soil, thereby reducing the incidental damage to the soil in the non-operation area. At the same time, the centrifugal force generated by the rotary motion also helps to smoothly transport the separated soil to the soil crushing mechanism, thereby optimizing the material flow path.

[0022] 3、 based on the soil breaking mechanism is installed in the support frame, and is located in the soil loosening space, the design will be directly set in the soil breaking mechanism in the soil loosening space formed by two unit frame bodies, the separated soil can enter the breaking area in the shortest path.This effectively avoids the soil scattering and energy loss in the transfer process, improves the overall efficiency and continuity of the soil loosening operation, and ensures the consistency of the loosening effect. BRIEF DESCRIPTION OF DRAWINGS

[0023] Figure 1 It is a structure schematic view of a shallow ploughing and soil loosening device for forest and grass repair of the application.

[0024] Figure 2 It is a side view of Figure 1

[0025] Figure 3 It is a soil layering mechanism of the application.

[0026] Figure 4 It is a soil breaking mechanism of the application.

[0027] Figure 5 It is a pressure roller profile view of the application.

[0028] In the figure: 1, support frame; 101, unit frame body; 2, soil loosening space; 3, soil layering mechanism; 301, first rotary drive mechanism; 302, first rotary rod; 303, soil fork; 4, soil breaking mechanism; 401, second rotary rod; 402, soil breaking tooth; 403, second rotary drive mechanism; 5, blocking plate; 6, linear extension device; 7, pressure roller; 701, water containing cavity; 702, water leakage hole; 8, height adjusting hole; 9, repair roller; 10, surface soil. DETAILED DESCRIPTION

[0029] In the following, the application will be further described in conjunction with the drawings and specific embodiments, and it should be noted that the following described embodiments or technical features can be combined in any way to form new embodiments without conflict.

[0030] It should be noted that when an element is referred to as being "fixed" to another element, it can be directly on the other element, or there can be a middle element. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or there can be a middle element. The "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only and do not represent the only implementation.

[0031] ​Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used in the description herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. As used herein, the term "and / or" includes any and all combinations of one or more of the associated listed items.

[0032] Referring to Figures 1-5 In a preferred embodiment of the present application, a shallow tillage device for forest and grass restoration includes a support frame 1, a soil layering mechanism 3, and a soil crushing mechanism 4. The support frame 1 includes two unit frame bodies 101, which are arranged vertically and spaced apart to form a soil loosening space 2. Each unit frame body 101 is provided with a soil layering mechanism 3. The unit frame bodies 101 and the soil layering mechanisms 3 are arranged along a working path. The two soil layering mechanisms 3 are used to separate the soil between them from the remaining soil layer, so that the soil can enter the soil loosening space 2. The soil layering mechanism 3 includes a first rotary drive mechanism 301, a first rotating rod 302, and a plurality of soil prongs 303. The first rotary drive mechanism 301 is installed on the unit frame body 101. The first rotating rod 302 extends horizontally. One end of the first rotating rod 302 is drivingly connected to the first rotary drive mechanism 301, and the other end is rotatably connected to the unit frame body 101. The first rotary drive mechanism 301 is used to drive the first rotating rod 302 to rotate about the axis of the first rotating rod 302. The plurality of soil prongs 303 are installed on the first rotating rod 302 to rotate with the first rotating rod 302. The soil crushing mechanism 4 is installed on the support frame 1 and located in the soil loosening space 2. The soil crushing mechanism 4 is used to crush and loosen the separated soil on the working path.

[0033] The working principle of the present application is as follows: during operation, the support frame 1 is pushed along the working path by external force, and the core working components (soil layering mechanism 3 and soil crushing mechanism 4) mainly operate at a predetermined soil depth and below. The two soil layering mechanisms 3 arranged vertically are activated, and the first rotating drive mechanism 301 of each soil layering mechanism 3 drives the horizontal first rotating rod 302 to rotate, which in turn drives the multiple soil forks 303 on the rod to rotate. The upper soil forks 303 cut into and remove the shallow soil, and the lower soil forks 303 cut into the deeper soil, and the target soil layer (such as a 5-20 cm hardened layer) between them is cut and separated from the soil layer. This separation process is completed underground, and the separated soil layer is introduced into the soil loosening space 2 formed by the two unit frame bodies 101. Then, the soil crushing mechanism 4 installed in this space performs crushing and loosening operation on the soil. Since all the soil loosening process is completed in this underground space, only part of the support frame 1 protrudes from the surface soil 10 to access the power source, and most of the surface soil 10 is not disturbed, thus effectively protecting the integrity and stability of the surface structure and avoiding the damage to the surface soil 10 caused by traditional shallow plowing and the resulting soil erosion problem.

[0034] Based on the installation of the two soil layering mechanisms 3 on the two vertically spaced unit frame bodies 101, this structure allows independent installation and adjustment of the two soil layering mechanisms 3 in space, thereby controlling the vertical distance between the soil forks 303 belonging to the two different soil layering mechanisms 3. This distance directly determines the thickness of the target soil layer that is separated and introduced into the loosening space, allowing the device to flexibly adapt to the different requirements for shallow plowing depth (such as 5-10 cm or 10-20 cm) in different forest and grass restoration scenarios, improving the versatility and operation accuracy of the equipment. The rigid support frame formed by the two unit frame bodies 101 provides a stable and non-interfering installation basis for the upper and lower soil layering mechanisms 3. This not only ensures that the two mechanisms can perform layering cutting operation synchronously and stably under complex soil conditions, but also forms a controlled operation chamber for the soil loosening space 2, effectively guiding the separated soil into the predetermined area and preventing the soil from spreading disorderly around during the loosening process, thereby improving the orderliness and efficiency of the operation. By integrating the soil layering mechanisms 3 into independent unit frame bodies 101, it is convenient to maintain, repair or replace each mechanism independently. For example, different strength or angle forks can be selected for the upper and lower soil forks 303 according to the hardness of the soil, reducing the maintenance complexity of the overall equipment.

[0035] Based on the installation of multiple shovels 303 on the first rotating rod 302, the stable and controllable cutting motion trajectory is formed by following the rotation of the first rotating rod 302. This rotary cutting method has less disturbance to the soil structure than the reciprocating or vibrating cutting method, and can more clearly separate the target soil layer from the upper and lower layers of soil, reducing the incidental damage to the soil in the non-working area. At the same time, the centrifugal force generated by the rotary motion also helps to smoothly transport the separated soil to the soil crushing mechanism 4, optimizing the material flow path.

[0036] Based on the installation of the soil crushing mechanism 4 on the support frame 1 and in the soil loosening space 2, the design directly sets the soil crushing mechanism 4 inside the soil loosening space 2 formed by the two unit frame bodies 101, so that the separated soil can enter the crushing area in the shortest path. This effectively avoids the scattering and energy loss of the soil during transfer, improves the overall efficiency and continuity of the loosening operation, and ensures the consistency of the loosening effect.

[0037] It is worth noting that in the present application, the support frame 1 should be connected to a power driving mechanism, such as a common tractor traction device or a self-powered chassis, to provide the traction required for the device to move forward. At the same time, the power of the first rotary driving mechanism 301 and the soil crushing mechanism 4 can be provided by the power output shaft of the traction vehicle through a transmission system, or driven by an independent power source such as a hydraulic system, motor, etc. provided by the device, so as to ensure that each working part obtains stable, reliable and independently adjustable power input during movement, and realizes efficient and coordinated continuous operation. The support frame 1 connected to the power driving mechanism is extended above the surface soil 10, and it is worth noting that the contact area with the surface soil 10 should be minimized while ensuring the structural strength of the support frame 1, so as to avoid causing too wide a trench in the surface soil 10 during movement. The soil crushing mechanism 4 mentioned in the present application includes but is not limited to structural forms such as rotary knife shaft, vibrating tooth plate or auger loosener, etc. The specific implementation can be adapted and selected according to the soil texture, degree of compaction and operation efficiency requirements, so as to ensure that the compacted soil layer introduced into the soil loosening space 2 is fully and uniformly crushed and loosened.

[0038] More preferably, the plurality of soil forks 303 are arranged in sequence along the axial and circumferential direction of the first rotating shaft 302, and the two first rotating shafts 302 rotate relatively around their own axes to drive the soil forks 303 attached to different rotating shafts to rotate relatively, and make the shallow tillage device for forest and grass restoration have a movement trend of moving along the working path. This design makes the cutting and stripping effect continuous and uniform on the working width and depth. At the same time, the two first rotating shafts 302 are configured to rotate towards each other (i.e. relatively rotate) around their own axes, thereby driving the soil forks 303 mounted thereon to rotate in opposite directions. This relative rotation movement not only can more efficiently cut, strip and transport the target soil layer between the upper and lower layers, but also can generate a forward traction component during operation, giving the entire device a movement trend of moving autonomously along the working path, which helps to reduce external traction load and improve operation efficiency and maneuverability.

[0039] More preferably, the soil layering mechanism 3 further comprises a plurality of blocking plates 5, which are installed on the unit frame body 101 and arranged in sequence along the axial direction of the first rotating shaft 302. The blocking plates 5 extend around the circumferential direction of the first rotating shaft 302 and are arranged in sequence along the axial direction of the first rotating shaft 302. The blocking plates 5 are used to block the gravel on the soil separation path from entering the soil loosening space 2. These blocking plates 5 are fixedly installed on the corresponding unit frame body 101 and arranged in sequence along the axial direction of the first rotating shaft 302, forming a continuous physical barrier. Each blocking plate 5 is designed as an arc or polygonal structure coaxial with the first rotating shaft 302, so that it can extend in the circumferential direction around the rotating contour of the first rotating shaft 302, while maintaining a reasonable safety gap between the rotating shaft and the rotating soil fork 303 thereon. This gap not only ensures the free rotation of the first rotating shaft 302 and the soil fork 303 without interference, but also needs to be small enough to block larger size foreign matter. This structure design enables the blocking plates 5 to effectively intercept and block hard or entangled impurities such as gravel, plant roots, building residues, etc. in the soil within the working path of the soil layering mechanism 3, especially in the area where the soil fork 303 cuts and transports the soil. By separating and guiding these potentially harmful impurities out of the working path in advance, the blocking plate 5 system can prevent them from entering the subsequent soil loosening space 2 together with the target soil, thereby avoiding accidental impact, entanglement, jamming or excessive wear of the soil crushing mechanism 4 located in this space. This not only reduces the risk of equipment failure and maintenance frequency, but also effectively ensures the continuity and stability of the soil crushing operation, ultimately improving the operation reliability and service life of the entire shallow tillage device in complex outdoor environments.

[0040] More preferably, the support frame 1 comprises a linear telescopic device 6, the two ends of the linear telescopic device 6 are respectively connected to the two unit frame bodies 101, and the linear telescopic device 6 is used to adjust the interval between the two unit frame bodies 101. By driving the telescopic movement of the linear telescopic device 6 (such as a hydraulic oil cylinder, an electric push rod or a screw adjusting mechanism), the two unit frame bodies 101 can be directly brought closer or farther apart in the vertical direction, thereby adjusting the installation interval between the two in real time and accurately. This adjustment process directly determines the vertical distance between the upper and lower soil layering mechanisms 3, and in turn continuously and controllably changes the working thickness of the target soil layer separated and introduced into the soil loosening space 2. In the present application, this design gives the device high working flexibility, which can quickly and accurately adjust the shallow plowing depth on site according to the specific requirements of different forest and grass restoration projects (such as 5 cm, 10 cm or 20 cm), without the need to replace parts, thereby improving the versatility and adaptability of the equipment. Its precise depth control ensures that the soil loosening operation is always strictly within the preset shallow range, fundamentally avoiding the risk of damaging the deep native soil structure or disturbing the surface protective layer due to improper depth, greatly improving the operation accuracy and reliability.

[0041] More preferably, the soil crushing mechanism 4 comprises a second rotating rod 401 and a plurality of soil crushing teeth 402, the second rotating rod 401 extends in the horizontal direction, and the two ends of the second rotating rod 401 are respectively rotatably connected to one of the unit frame bodies 101; the plurality of soil crushing teeth 402 are uniformly and spacedly distributed along the circumference and axis of the second rotating rod 401. In the present embodiment, the second rotating rod 401 can be connected to a rotating drive mechanism or passively rotated and broken by the movement of the device, and when the second rotating rod 401 is driven to rotate, the soil crushing teeth 402 uniformly distributed in the circumferential and axial directions of the second rotating rod 401 are driven to rotate. These soil crushing teeth 402 perform multi-angle, multi-level cutting, impact and tearing on the hardened soil blocks introduced into the soil loosening space 2 from the soil layering mechanism 3, thereby achieving soil crushing and loosening. Among them, the soil crushing teeth 402 densely and uniformly distributed along the circumference and axis form a continuous crushing working surface, which can process the soil entering the cavity without dead angle, improve the uniformity and fineness of the soil crushing, and ensure the working quality of the shallow plowing and soil loosening. Through the rotatable connection of the two ends of the second rotating rod 401 and the unit frame body 101, the structure of the entire soil crushing mechanism 4 is stable in support and reliable in power transmission, and can withstand the unbalanced load and vibration generated during soil crushing, thereby improving the durability and reliability of the equipment in harsh working conditions.

[0042] More preferably, the soil breaking mechanism 4 further comprises a second rotary driving mechanism 403 mounted on one of the support frames 1 and drivingly connected with the second rotary rod 401 to drive the second rotary rod 401 to rotate the soil breaking teeth 402 around the axis of the second rotary rod 401. The second rotary driving mechanism 403 (e.g. a hydraulic motor, an electric motor or an external power source connected through a transmission shaft) directly transmits power to the second rotary rod 401 to drive it to rotate at high speed around its own axis, which in turn drives all the soil breaking teeth 402 fixed thereon to perform synchronous rotary cutting motion. This design makes the power input of the soil breaking mechanism 4 independent and controllable. The second rotary driving mechanism 403 provides an independent and powerful power source, ensuring that the soil breaking teeth 402 can rotate stably and at high speed under high torque, thereby effectively breaking various types of hardened soil and improving the soil breaking efficiency and operation capacity. The operator can optimize the soil breaking effect and energy consumption by controlling the second rotary driving mechanism 403 according to the soil hardness, water content and other working conditions, thereby enhancing the adaptability and intelligent level of the equipment.

[0043] More preferably, the shallow tillage and soil loosening device for forest and grass restoration further comprises a pressure roller 7 mounted on the support frame 1 and extending in the horizontal direction, the pressure roller 7 being arranged vertically spaced apart from the unit frame body 101, and the pressure roller 7 being used for abutting against the ground. When the device completes the shallow tillage and soil loosening operation of the front soil and moves forward, the pressure roller 7 mounted at the rear part immediately performs moderate rolling and flattening on the ground surface just subjected to loosening treatment. The rolling and compacting action of the pressure roller 7 can make the slightly raised or loose surface soil 10 after loosening re-dense and adhere to the underlying soil, effectively reducing soil pores, preventing rapid evaporation of water, and creating a stable foundation for seed germination or turf growth. Moreover, the pressure roller 7 can also flatten the working surface and flatten the local unevenness or rut marks that may be generated during the loosening process, which helps to restore the flatness of the ground surface, reduces the risk of water and soil loss, and improves the aesthetics and functionality of the restoration area. This design has the functions of depth limiting and supporting, and the pressure roller 7 can assist in stabilizing the working height of the entire device through continuous contact with the ground surface, especially in undulating terrain, to ensure uniform and consistent shallow tillage depth, while also sharing part of the equipment weight to improve the stability of traction and operation.

[0044] More preferably, the support frame 1 is provided with a plurality of height adjustment holes 8, which are arranged in the vertical direction in sequence and at intervals, and the pressure roller 7 is rotatably inserted into the height adjustment holes 8, and the height adjustment holes 8 are used to adjust the spacing between the pressure roller 7 and the unit frame body 101. The pressure roller 7 is rotatably inserted into a selected pair of height adjustment holes 8 through the rotating shafts at both ends, so as to be installed on the support frame 1, and the insertion position can be adjusted according to the operation requirements. By installing in different height adjustment holes, the vertical installation height of the pressure roller 7 relative to the unit frame body 101 can be changed, thereby directly adjusting the vertical spacing distance between the pressure roller 7 and the unit frame body 101. This mechanical adjustment structure enables the operator to flexibly adjust the compaction strength of the pressure roller 7 on the ground surface according to different soil conditions and operation requirements. By maintaining the stability of the relative position between the pressure roller 7 and the soil loosening mechanism, the design not only ensures the ground surface leveling and compaction effect, but also ensures the coordination and unity of the soil loosening and compaction processes.

[0045] More preferably, the pressure roller 7 has a water containing cavity 701 extending along the axis of the pressure roller 7, and a plurality of water leakage holes 702 arranged in sequence and at intervals along the axis of the pressure roller 7 and communicating with the water containing cavity 701. Before operation, a proper amount of clean water can be injected into the water containing cavity 701 through a water injection port, or an external water supply source can be connected. During operation, as the pressure roller 7 rolls on the ground surface, the water in the cavity slowly and uniformly seeps out through the circumferentially distributed water leakage holes 702 under the action of gravity and centrifugal force, directly moisturizing the surface layer soil 10 being rolled. This structural design realizes the dual functions of compaction and local irrigation. While rolling and leveling the ground surface, the pressure roller 7 can instantly increase the humidity of the surface layer soil 10 through continuous and controllable water seepage, effectively inhibiting the dust generated during rolling, and providing preliminary water supply for newly sown grass seeds or seedlings. The operation area's conservation capacity and initial survival rate are improved, and the adaptability and ecological benefits of the device in arid and semi-arid areas of forest and grass restoration projects are particularly enhanced.

[0046] More preferably, the shallow tillage device for forest and grass restoration further comprises a restoration roller 9 installed on the support frame 1 and used for abutting against the ground, the restoration roller 9 and the support frame 1 are sequentially distributed along the working path, and the restoration roller 9 is used for restoring the surface soil 10 damaged when the support frame 1 travels along the working path. When the device is pushed forward by an external traction equipment, the support frame 1 and the unit frame body 101 and other structures working in the soil need to extend upwards out of the ground to connect the traction point, and the rigid structure extending out of the ground will inevitably roll and push away the surface soil directly below in the traveling process, thereby forming two continuous gullies or compacted zones on the working path. The restoration roller 9 installed at the rear of the support frame 1 follows closely behind and fills, combs and levels the two gullies formed due to the travel of the support frame 1, thereby restoring the damaged surface continuity. The structure has the beneficial effect that it can actively eliminate the incidental damage of the device structure to the ground, and ensure that after the completion of the shallow tillage operation, the surface of the entire working path can be restored to a flat and coherent state except for the target loosened area, thereby minimizing the risk of water and soil loss caused by the passage of the working machine and ensuring the integrity of the surface soil 10.

[0047] In the description of the present specification, the description of the terms "one embodiment", "some embodiments", "an example", "a specific example" or "some examples" and the like means that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present application. Moreover, the specific features, structures, materials or characteristics described can be combined in any appropriate manner in any one or more embodiments or examples. In addition, different embodiments or examples described in the specification and the features of different embodiments or examples can be combined and combined by those skilled in the art without contradiction.

[0048] In addition, the terms "first", "second" are only for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined with "first", "second" can explicitly or implicitly include at least one of the features. In the description of the present application, the meaning of "a plurality of" is two or more, unless otherwise specifically limited.

[0049] The above is only a specific embodiment of the present application, but the protection scope of the present application is not limited thereto, and any person skilled in the art can easily think of various changes or replacements within the technical scope disclosed in the present application, which should be covered within the protection scope of the present application. Therefore, the protection scope of the present application should be subject to the protection scope of the claims.

Claims

1. A shallow tillage and loosening device for forest and grassland restoration, characterized in that, include: The support frame (1) includes two unit frames (101), which are arranged at intervals in the vertical direction to form a loose soil space (2). Soil stratification mechanism (3): Each of the two unit frames (101) is equipped with a soil stratification mechanism (3). The unit frames (101) and the soil stratification mechanisms (3) are distributed sequentially along the working path. The two soil stratification mechanisms (3) are used to separate the soil between them from the remaining soil layers so that the soil can enter the soil loosening space (2). The soil stratification mechanism (3) includes a first rotary drive mechanism (301), a first rotating rod (302), and multiple soil-pulling forks (303). The first rotary drive mechanism (301) is installed on the unit frame. Body (101); the first rotating rod (302) extends horizontally, one end of the first rotating rod (302) is driven to be connected to the first rotary drive mechanism (301), and the other end of the first rotating rod (302) is rotatably connected to the unit frame (101). The first rotary drive mechanism (301) is used to drive the first rotating rod (302) to rotate around the axis of the first rotating rod (302); a plurality of soil-pulling forks (303) are installed on the first rotating rod (302) to follow the rotation of the first rotating rod (302); The soil crushing mechanism (4) is installed on the support frame (1) and located in the soil loosening space (2). The soil crushing mechanism (4) is used to crush and loosen the soil separated on the working path.

2. The shallow tillage and loosening device for forest and grassland restoration according to claim 1, characterized in that, Multiple soil-removing forks (303) are distributed sequentially and at intervals along the axial and circumferential directions of the first rotating rod (302). Two of the first rotating rods (302) rotate relative to each other around their own axes to drive the soil-removing forks (303) belonging to different rotating rods to rotate relative to each other, and to make the shallow tillage and loosening device for forest and grassland restoration have a tendency to move along the working path.

3. The shallow tillage and loosening device for forest and grassland restoration according to claim 1, characterized in that, The soil stratification mechanism (3) also includes a plurality of baffles (5), which are installed on the unit frame (101) and are arranged sequentially at intervals along the axial direction of the first rotating rod (302). The baffles (5) extend around the circumference of the first rotating rod (302) and are arranged at intervals from the first rotating rod (302). The baffles (5) are used to prevent gravel on the soil separation path from entering the soil loosening space (2).

4. The shallow tillage and loosening device for forest and grassland restoration according to claim 1, characterized in that, The support frame (1) includes a linear telescopic device (6), the two ends of which are respectively connected to two unit frames (101). The linear telescopic device (6) is used to adjust the interval between the two unit frames (101).

5. A shallow tillage and loosening device for forest and grassland restoration according to claim 1, characterized in that, The soil-breaking mechanism (4) includes a second rotating rod (401) and a plurality of soil-breaking teeth (402). The second rotating rod (401) extends in the horizontal direction, and the two ends of the second rotating rod (401) are rotatably connected to one of the unit frames (101). The plurality of soil-breaking teeth (402) are distributed sequentially at intervals along the circumference and axial direction of the second rotating rod (401).

6. A shallow tillage and loosening device for forest and grassland restoration according to claim 5, characterized in that, The soil crushing mechanism (4) further includes a second rotary drive mechanism (403), which is installed on one of the support frames (1) and driven to be connected to the second rotating rod (401) to drive the second rotating rod (401) to drive the soil crushing teeth (402) to rotate around the axis of the second rotating rod (401).

7. A shallow tillage and loosening device for forest and grassland restoration according to claim 1, characterized in that, The shallow tillage and loosening device for forest and grassland restoration also includes a pressure roller (7), which is installed on the support frame (1) and extends in the horizontal direction. The pressure roller (7) and the unit frame (101) are arranged at intervals in the vertical direction. The pressure roller (7) is used to abut against the ground.

8. A shallow tillage and loosening device for forest and grassland restoration according to claim 7, characterized in that, The support frame (1) is provided with a plurality of height adjustment holes (8), which are distributed sequentially at intervals along the vertical direction. The pressure roller (7) is rotatably inserted into the height adjustment hole (8), and the height adjustment hole (8) is used to adjust the interval between the pressure roller (7) and the unit frame (101).

9. A shallow tillage and loosening device for forest and grassland restoration according to claim 7, characterized in that, The pressure roller (7) has a water-containing cavity (701) and a plurality of water-draining holes (702). The water-containing cavity (701) extends along the axial direction of the pressure roller (7). The plurality of water-draining holes (702) are arranged sequentially at intervals along the axial direction of the pressure roller (7) and communicate with the water-containing cavity (701).

10. A shallow tillage and loosening device for forest and grassland restoration according to claim 1, characterized in that, The shallow tillage and loosening device for forest and grassland restoration also includes a repair roller (9), which is installed on the support frame (1) and used to contact the ground. The repair roller (9) and the support frame (1) are distributed sequentially along the working path. The repair roller (9) is used to repair the surface soil damaged by the support frame (1) when it moves along the working path.

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