Soil regulation and control device for preventing grassland soil degradation

Abstract

The invention belongs to the technical field of agriculture, and discloses a soil regulation and control device for preventing grassland soil degradation, comprising a support frame for supporting the whole machine to ensure stability and durability; the suspension device is installed at the top end of the supporting frame and used for connecting the device to a tractor or other power equipment, and field movement and operation are facilitated; the side plate is mounted on one side of the supporting frame and used for limiting the soil; the mud blocking plate is movably installed at one end of the supporting frame and used for smoothing the soil surface after soil loosening; the transmission device comprises a gear box, a transmission shaft and a reverser, is used for transmitting power from a tractor to the soil loosening component, effectively prevents dust from invading the rotating shaft and the supporting piece through the double-protection design, reduces abrasion and fault risks, prolongs the service life of mechanical components, meanwhile prevents dust from entering the connecting portion of the rotating shaft and the transmission device, and improves the reliability of the tractor. Key parts are protected, stable operation of the transmission device is ensured, and the overall reliability and durability are improved.

Description

Technical Field

[0001] The present invention belongs to the technical field of agriculture, and particularly relates to a soil regulation device for preventing grassland soil degradation. Background Art

[0002] Grassland soil degradation generally refers to the deterioration of soil physical properties (such as structure, texture), chemical properties (such as nutrient status), and biological properties (such as the number and diversity of microorganisms). Such degradation will seriously affect the ecological functions and agricultural productivity of grasslands. Common degradation causes include overgrazing, soil erosion, soil salinization, acidification, pollution, and climate change, etc.;

[0003] Existing soil regulation devices and technologies mainly include various physical, chemical, and biological methods. For example: Physical methods: such as measures like deep plowing, soil loosening, reasonable irrigation for water conservation, and constructing a ground cover layer, aiming to improve soil structure and increase soil water storage and ventilation capabilities;

[0004] Chemical methods: Using soil conditioners, such as organic fertilizers, inorganic fertilizers, soil conditioners, etc., to provide nutrients for the soil and improve its physical and chemical properties;

[0005] Biological methods: including planting suitable plants for soil and slope protection, absorbing and fixing harmful substances in the soil through plants, or applying microbial fertilizers to improve the microbial activity and biodiversity of the soil and improve soil quality;

[0006] During the soil loosening process, a rotary tiller is needed. The soil loosening shovel of the rotary tiller is driven by a rotating shaft. Since there is a connection between the rotating shaft and the transmission structure, there are small gaps at this time. And because the soil loosening shovel enters the soil interior, soil splashes occur at this time. The splashed soil enters the interior of the transmission structure along the connection between the rotating shaft and the transmission structure, resulting in problems such as component wear, reduced transmission efficiency, and equipment failures due to dirt in the transmission structure interior. Summary of the Invention

[0007] In view of the problems in the prior art that when the soil loosening shovel enters the soil interior, soil splashes occur, and the splashed soil enters the interior of the transmission structure along the connection between the rotating shaft and the transmission structure, resulting in problems such as component wear, reduced transmission efficiency, and equipment failures due to dirt in the transmission structure interior, the present invention proposes the following technical solutions:

[0008] A soil regulation device for preventing grassland soil degradation, comprising:

[0009] Support frame: Supports the entire machine to ensure stability and durability;

[0010] Hanging device: Installed at the top of the support frame, used to connect the device to a tractor or other power equipment for easy field movement and operation;

[0011] Side plate: Installed on one side of the support frame for limiting the soil.

[0012] Mud blocking plate: Movably installed at one end of the support frame for smoothing the soil surface after loosening the soil.

[0013] Transmission device: Comprising a gearbox, a transmission shaft and a commutator, for transmitting power from the tractor to the soil loosening component.

[0014] Rotating shaft: Clamped and installed inside the transmission device for connecting other components.

[0015] Soil loosening shovel: Clamped and installed outside the rotating shaft for loosening the soil.

[0016] Cleaning structure, including a support sleeve, a partition sleeve, an inclined plate, an arc-shaped pipe and a flow blocking pipe. The support sleeve is clamped and installed inside the rotating shaft for supporting the rotating shaft. The partition sleeve is fixedly installed at one end of the support sleeve for shunting gas. The inclined plate is fixedly installed inside the partition sleeve. A plurality of the arc-shaped pipes are fixedly installed outside the partition sleeve and act together with the inclined plate to guide the gas flow.

[0017] As a preference of the above technical solution, a support member is fixedly installed on one end face of the side plate. Clamping sleeves are installed on both sides of the support member and the transmission device. The clamping sleeves are fixedly connected between the two end faces of the transmission device. A bearing is clamped and installed outside the clamping sleeve located on the support member. The rotating shaft is clamped between the outside of the bearing and the clamping sleeve on the transmission device. The commutator is fixedly installed at the top of the support frame. A transmission shaft is fixedly installed at one end of the commutator. A gearbox is installed at the bottom end of the support frame. The gearbox is composed of a worm and a turbine. The worm is fixedly installed at the bottom end of the commutator. The turbine is rotatably connected inside the gearbox. The clamping sleeve is fixedly installed outside the turbine.

[0018] As a preference of the above technical solution, an air outlet groove is opened inside the clamping sleeve. Sealing gaskets are clamped at the bottom end position of the air outlet groove on the outside of the support member and the transmission device. The sealing gaskets are attached to one end face of the rotating shaft.

[0019] As a preference of the above technical solution, a Venturi tube is clamped and installed in the middle of the support sleeve. A plurality of support rods fixedly connected to the partition sleeve are integrally formed on one end face of the Venturi tube.

[0020] As a preference of the above technical solution, a clamping ring is clamped and installed in the middle of one end face of the partition sleeve. A filter screen is fixedly installed on one end face of the clamping ring. Anti-slip grooves are opened on the outside of the clamping ring and friction pads are arranged inside the anti-slip grooves.

[0021] As a preferred embodiment of the above technical solution, a support bar is welded inside the support sleeve, and a fan blade is rotatably connected inside the support bar in the air outlet direction of the Venturi tube. A converging pipe is welded inside the support sleeve in the air outlet direction of the Venturi tube, and the air outlet end of the converging pipe is located inside the air inlet end of the choke tube.

[0022] As a preferred embodiment of the above technical solution, a fixing ring is welded on the outside of the choke tube, spring rods are equidistantly clamped on one end face of the fixing ring, the same aluminum disk is clamped and installed between one end faces of multiple spring rods, a sealing plug is fixedly installed on one end face of the aluminum disk, and the sealing plug is slidably connected to the air outlet port of the choke tube.

[0023] As a preferred embodiment of the above technical solution, an aluminum column is integrally formed on one end surface of the aluminum disk, and the aluminum column penetrates the sealing plug and is located inside the converging tube.

[0024] As a preferred embodiment of the above technical solution, the turbine inside the gear box is connected to the clamping sleeve via a key, and the worm and the turbine are meshed with each other.

[0025] The beneficial effects of the present invention are:

[0026] (1) The device adopts a double protection design to effectively prevent dust from invading the shaft and the support parts, reduce the risk of wear and failure, and extend the service life of mechanical parts. At the same time, it prevents dust from entering the connection between the shaft and the transmission device, protects key components, ensures the stable operation of the transmission device, and improves overall reliability and durability;

[0027] (2) The device effectively reduces the temperature of the transmission device by optimizing the heat dissipation structure, avoiding problems such as lubrication failure and component expansion caused by high temperature, thereby preventing overheating. Stable operating temperature helps the transmission components maintain efficient power transmission, reduce energy loss, and thus improve operating efficiency. At the same time, lower temperatures can slow down material aging and wear, extend the service life of the transmission device, reduce maintenance costs, and ensure long-term stable operation of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 The structure diagram of a soil control device for preventing grassland soil degradation in Example 1 is shown;

[0029] Figure 2 The front view of a soil control device for preventing grassland soil degradation in Example 1 is shown;

[0030] Figure 3 The figure shows a schematic diagram of the installation structure of the loosening shovel in the embodiment 1;

[0031] Figure 4 Shown is a cross-sectional view of the rotating shaft in Example 1;

[0032] Figure 5 The figure shows a schematic diagram of the installation structure of the spacer sleeve in Embodiment 1;

[0033] Figure 6 The figure shows a cross-sectional view of the support sleeve in Embodiment 1.

[0034] In the figure: 1, support frame; 2, suspension device; 3, side plate; 4, mud guard; 5, transmission device; 6, rotating shaft; 7, subsoiler; 8, support member; 9, air outlet groove; 10, gasket; 11, clamping sleeve; 12, bearing; 13, support sleeve; 14, Venturi tube; 15, support rod; 16, spacer sleeve; 17, arc tube; 18, inclined plate; 19, clamping ring; 20, filter screen; 21, support bar; 22, fan blade; 23, converging tube; 24, flow blocking tube; 25, fixing ring; 26, spring rod; 27, aluminum disc; 28, sealing plug; 29, aluminum column. Detailed implementation manners

[0035] To make the objectives, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions of the present invention will be clearly and completely described below in conjunction with the embodiments.

[0036] Embodiment 1: The present invention provides a soil regulation device for preventing grassland soil degradation, as Figures 1 to 6 shown, including: Support frame 1: Supports the entire machine to ensure stability and durability;

[0037] Suspension device 2: Installed at the top of the support frame 1, used to connect the device to a tractor or other power equipment for easy movement and operation in the field;

[0038] Side plate 3: Installed on one side of the support frame 1, used to limit the soil;

[0039] Mud guard 4: Movably installed at one end of the support frame 1, used to smooth the soil surface after loosening;

[0040] Transmission device 5: Comprises a gearbox, a transmission shaft and a commutator, used to transmit power from the tractor to the soil loosening components;

[0041] Rotating shaft 6: Clamped and installed inside the transmission device 5, used to connect other components;

[0042] Subsoiler 7: Clamped and installed outside the rotating shaft 6, used to loosen the soil;

[0043] The cleaning structure includes a support sleeve 13, a partition sleeve 16, an inclined plate 18, an arc-shaped pipe 17 and a flow-blocking pipe 24. The support sleeve 13 is snap-fitted and installed inside the rotating shaft 6 for supporting the rotating shaft 6. The partition sleeve 16 is fixedly installed at one end of the support sleeve 13. The partition sleeve 16 is in a hook shape for diverting gas. The inclined plate 18 is fixedly installed inside the partition sleeve 16. A plurality of arc-shaped pipes 17 are fixedly installed outside the partition sleeve 16 and cooperate with the inclined plate 18 to guide the gas flow;

[0044] During use, since the rotation of the rotating shaft 6 drives the inclined plate 18 and the arc-shaped pipe 17 to rotate synchronously, at this time, the inclined plate 18 and the arc-shaped pipe 17 jointly act to guide the gas flow, causing the gas to enter the inside of the rotating shaft 6. And during this process, since the gas moves along the outside and inside of the partition sleeve 16 respectively, the gas moving inside enters the outside of the flow-blocking pipe 24 and enters the connection parts between the rotating shaft 6 and the transmission device 5 and between the rotating shaft 6 and the support member 8 on the outside of the side plate 3 under the action of the flow-blocking pipe 24 and the partition sleeve 16, so that the gas flows from the inside to the outside, preventing external dust from entering the connection parts between the rotating shaft 6 and the transmission device 5 and between the rotating shaft 6 and the support member 8 on the outside of the side plate 3.

[0045] As Figure 1 and Figure 2 As shown in the figure, a support member 8 is fixedly installed on one end face of the side plate 3. Clamping sleeves 11 are installed on both sides of the support member 8 and the transmission device 5. The clamping sleeves 11 are fixedly connected between the two end faces of the transmission device 5. A bearing 12 is snap-fitted and installed on the outside of the clamping sleeve 11 located on the support member 8. The rotating shaft 6 is snap-fitted between the outside of the bearing 12 and the clamping sleeve 11 on the transmission device 5. The commutator is fixedly installed at the top of the support frame 1. One end of the commutator is fixedly installed with a transmission shaft. A gearbox is installed at the bottom of the support frame 1. The gearbox is composed of a worm and a turbine. Among them, the worm is fixedly installed at the bottom of the commutator, and the turbine is rotatably connected inside the gearbox. The clamping sleeve 11 is fixedly installed on the outside of the turbine. The turbine inside the gearbox and the clamping sleeve 11 are connected by a key. The worm and the turbine are meshed with each other for the rotation of the turbine, changing the rotation difficulty of the turbine;

[0046] When the commutator operates, it will drive the worm to rotate. The rotation of the worm further drives the turbine meshed with it to rotate synchronously. Since the clamping sleeve 11 is fixedly installed on the outside of the turbine, the rotation of the turbine will directly drive the clamping sleeve 11 to rotate together. The rotation of the clamping sleeve 11 further drives the rotating shaft 6 installed on it to rotate synchronously. During the rotation of the rotating shaft 6, it will drive the bearing 12 snap-fitted and installed on the outside of the clamping sleeve 11 on the support member 8 to operate synchronously. Through the synergistic effect of the above structure and transmission method, the rotation difficulty of the rotating shaft 6 during rotation is changed.

[0047] As Figure 3 and Figure 4As shown, an air outlet groove 9 is provided inside the clamping sleeve 11. A sealing gasket 10 is clamped at the bottom end position of the outer sides of the support member 8 and the transmission device 5. One end of the air outlet groove 9 away from the sealing gasket 10 is inclined, and the sealing gasket 10 is attached to one end face of the rotating shaft 6.

[0048] At this time, two outward flowing gases are formed through the outer sides of the partition sleeve 16 and the choke tube 24. During the flow of these two gases, they respectively enter the outer sides of the rotating shaft 6 and the support member 8 and the outer sides of the rotating shaft 6 and the transmission device 5 along the air outlet groove 9. Due to the inclined air outlet groove 9 at this time, the gas flows outward, and the gas is compressed to form a ring shape on the outer sides of the rotating shaft 6 and the support member 8 or the rotating shaft 6 and the transmission device 5, and finally the gas flows out, preventing external dust from entering the inside of the rotating shaft 6 and the support member 8 or the rotating shaft 6 and the transmission device 5, ensuring the internal cleanliness.

[0049] As Figure 4 and Figure 6 shown, a Venturi tube 14 is clamped and installed in the middle of the support sleeve 13. A plurality of support rods 15 fixedly connected to the partition sleeve 16 are integrally formed on one end face of the Venturi tube 14.

[0050] Under the action of the support rods 15, the Venturi tube 14 and the partition sleeve 16 are fixed. And under the action of the Venturi tube 14, the gas can be accelerated, changing the acceleration difficulty of the gas.

[0051] As Figure 1 and Figure 2 shown, a clamping ring 19 is clamped and installed in the middle of one end face of the partition sleeve 16. A filter net 20 is fixedly installed on one end face of the clamping ring 19. Anti-slip grooves are provided on the outer side of the clamping ring 19 and friction pads are arranged inside the protective grooves.

[0052] Under the action of the friction pads and the protective grooves, the partition sleeve 16 and the clamping ring 19 are clamped and fixed, preventing the separation between the partition sleeve 16 and the clamping ring 19. And under the action of the filter net 20, the problem of dust entering synchronously when external gas enters is prevented.

[0053] As Figure 4 and Figure 6 shown, support bars 21 are welded inside the support sleeve 13. A fan blade 22 is rotatably connected inside the support bars 21 in the air outlet direction of the Venturi tube 14. A converging tube 23 is welded inside the support sleeve 13 in the air outlet direction of the Venturi tube 14. The air outlet end of the converging tube 23 is located inside the air inlet end of the choke tube 24.

[0054] Under the action of the support bar 21, it is used to position the fan blade 22, changing the positioning difficulty of the fan blade 22. At the same time, the gas accelerated by the Venturi tube 14 blows to the outside of the fan blade 22. At this time, when the wind flows, it will pass through the surface of the fan blade 22. According to Bernoulli's principle, where the fluid velocity increases, the pressure will decrease, making the flow velocity of the wind on the upper surface of the fan blade 22 greater than that on the lower surface. Thus, a lower pressure is generated on the upper surface of the fan blade 22 and a higher pressure is generated on the lower surface. This pressure difference will form an upward lift force to push the fan blade 22 to rotate. When the fan blade 22 rotates, it will further accelerate the flow velocity, changing the difficulty of increasing the gas flow velocity.

[0055] As Figure 4 and Figure 6 shown, a fixing ring 25 is welded to the outside of the choke tube 24. One end face of the fixing ring 25 is equidistantly clamped with spring rods 26. A same aluminum disc 27 is clamped and installed between one end faces of the plurality of spring rods 26. A sealing plug 28 is fixedly installed on one end face of the aluminum disc 27. The sealing plug 28 is slidably connected to the air outlet port of the choke tube 24. An aluminum column 29 is integrally formed on one end face of the aluminum disc 27. The aluminum column 29 penetrates through the sealing plug 28 and is located inside the converging tube 23;

[0056] The fast-flowing gas blows to the outside of the sealing plug 28, thereby pushing the sealing plug 28 to move. When the sealing plug 28 moves, it drives the aluminum disc 27 to move. When the aluminum disc 27 moves, it drives the spring rods 26 to be stretched, changing the stretching difficulty of the spring rods 26, and reducing the distance between the aluminum disc 27 and the turbine. Thus, the heat absorption property of the aluminum disc 27 is used to adsorb the heat during the operation of the turbine. The heat adsorbed by the aluminum disc 27 enters the inside of the aluminum column 29 and enters the inside of the converging tube 23 along the aluminum column 29. At this time, the outside gas blows against the outside of the aluminum column 29 during the flowing process, thereby taking away the heat and further reducing the temperature during the operation of the transmission device 5.

[0057] Working principle: During the actual use of this device, the support frame 1 is connected to the tractor through the suspension device 2. At this time, the transmission device 5 transmits the power from the tractor to the rotating shaft 6. Then, when the transmission device 5 operates, it drives the rotating shaft 6 to rotate. When the rotating shaft 6 rotates, it drives the subsoiler 7 to rotate. Then, it drives the support frame 1 to slowly enter the soil interior, making the bottom end of the side plate 3 fit with the top end of the soil. During this process, the side plate 3 can enter the soil interior to ensure that the filter screen 20 is above the soil. At the same time, the subsoiler 7 enters the soil interior. At this time, during the soil loosening process by the subsoiler 7, dust splashes everywhere inside the support frame 1, and the splashed soil is smoothed under the action of the mud guard 4. By connecting with the tractor through the suspension device 2, it ensures the stable operation of the device. The transmission device 5 transmits the power to the rotating shaft 6, driving the subsoiler 7 to rotate, realizing soil loosening, the side plate 3 fitting with the soil, ensuring the correct position of the filter screen 20, and the mud guard 4 smoothing the splashed soil, reducing dust flying and protecting the environment;

[0058] Since the rotation of the rotating shaft 6 drives the inclined plate 18 and the arc-shaped pipe 17 to rotate synchronously, at this time, the inclined plate 18 and the arc-shaped pipe 17 jointly act to guide the gas flow. When the gas flows, it passes through the filter screen 20 for filtration. The gas guided by the arc-shaped pipe 17 enters the outside of the partition sleeve 16 and enters the connection part between the rotating shaft 6 and the support member 8 along the outside of the partition sleeve 16. At this time, it enters the outside of the rotating shaft 6 and the support member 8 through the air outlet groove 9. At this time, due to the inclined air outlet groove 9, the gas flows outwards, and the gas is compressed to form a ring outside the rotating shaft 6 and the support member 8, and finally the gas flows outwards, preventing external dust from entering the inside of the rotating shaft 6 and the support member 8, ensuring the internal cleanliness. The gas flows outside the partition sleeve 16 and forms a ring-shaped air flow through the air outlet groove 9. Part of the gas enters the Venturi tube 14 along the partition sleeve 16, and at the same time, the gas in the middle directly enters the Venturi tube 14 along the inclined plate 18. Under the action of the Venturi tube 14, the gas can be accelerated, changing the acceleration difficulty of the gas. The accelerated gas blows to the outside of the fan blade 22. At this time, when the wind flows, it will pass through the surface of the fan blade 22. According to Bernoulli's principle, the flow rate is further accelerated. The accelerated gas enters the inside of the choke tube 24 and enters the outside of the rotating shaft 6 and the transmission device 5 along the action of the choke tube 24, so that the gas flows from the inside to the outside, preventing external dust from entering the connection part between the rotating shaft 6 and the transmission device 5, effectively preventing dust from entering the inside of the rotating shaft 6 and the support member 8, protecting mechanical components, and extending the service life. At the same time, it effectively prevents dust from entering the connection part between the rotating shaft 6 and the transmission device 5, protects key components, and ensures the normal operation of the transmission device 5;

[0059] At the same time, the fast-flowing gas blows to the outside of the sealing plug 28, thereby pushing the sealing plug 28 to move. When the sealing plug 28 moves, it drives the aluminum disc 27 to move. When the aluminum disc 27 moves, it drives the spring rod 26 to stretch, changing the stretching difficulty of the spring rod 26, and reducing the distance between the aluminum disc 27 and the turbine. Thus, the heat absorption property of the aluminum disc 27 is used to absorb the heat generated during the operation of the turbine. The heat absorbed by the aluminum disc 27 enters the aluminum column 29 and enters the converging pipe 23 along the aluminum column 29. At this time, the gas flowing outside blows on the outside of the aluminum column 29 during the flow process, thereby taking away the heat, further reducing the temperature during the operation of the transmission device 5, effectively reducing the temperature of the transmission device 5, preventing overheating, and improving the operation efficiency and service life of the transmission device 5.

[0060] The above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit them.

Claims

1. A soil control device for preventing grassland soil degradation, characterized in that: include: Support frame (1); Suspension device (2): installed on the top of the support frame (1); Side plate (3): installed on one side of the support frame (1) and used to limit the position of the soil; Mud blocking plate (4): movably mounted on one end of the support frame (1) and used to smooth the soil surface after loosening; Transmission device (5): including a gear box, a transmission shaft and a commutator, used to transmit power from the tractor to the soil loosening component; Rotating shaft (6): mounted inside the transmission device (5) and used to connect other components; Soil loosening shovel (7): mounted on the outside of the rotating shaft (6) and used for loosening the soil; The cleaning structure comprises a support sleeve (13), a separation sleeve (16), an inclined plate (18), an arc tube (17) and a flow-blocking tube (24); the support sleeve (13) is mounted in a snap-fit ​​manner inside a rotating shaft (6) for supporting the rotating shaft (6); the separation sleeve (16) is fixedly mounted on one end of the support sleeve (13) for diverting gas; the inclined plate (18) is fixedly mounted on the inner side of the separation sleeve (16); a plurality of arc tubes (17) are fixedly mounted on the outer side of the separation sleeve (16) and work together with the inclined plate (18) to guide the flow of gas.

2. The soil control device for preventing grassland soil degradation according to claim 1, characterized in that: A support member (8) is fixedly mounted on one end surface of the side plate (3), and a clamping sleeve (11) is mounted on both sides of the support member (8) and the transmission device (5). The clamping sleeve (11) is fixedly connected to the two end surfaces of the transmission device (5), and a bearing (12) is clamped and mounted on the outer side of the clamping sleeve (11) on the support member (8). The rotating shaft (6) is clamped between the outer side of the bearing (12) and the clamping sleeve (11) on the transmission device (5). The commutator is fixedly mounted on the top of the support frame (1), and a transmission shaft is fixedly mounted on one end of the commutator. A gear box is mounted on the bottom end of the support frame (1), and the gear box is composed of a worm and a turbine, wherein the worm is fixedly mounted on the bottom end of the commutator, and the turbine is rotatably connected to the inside of the gear box, and the clamping sleeve (11) is fixedly mounted on the outer side of the turbine.

3. The soil control device for preventing grassland soil degradation according to claim 2, characterized in that: An air outlet groove (9) is provided inside the clamping sleeve (11), and a sealing gasket (10) is clamped at the bottom end of the air outlet groove (9) outside the support member (8) and the transmission device (5), and the sealing gasket (10) is attached to one end surface of the rotating shaft (6).

4. The soil control device for preventing grassland soil degradation according to claim 2, characterized in that: A venturi tube (14) is clamped and installed in the middle of the support sleeve (13), and a plurality of support rods (15) fixedly connected to the separation sleeve (16) are integrally formed on one end surface of the venturi tube (14).

5. The soil control device for preventing grassland soil degradation according to claim 4, characterized in that: A clamping ring (19) is clamped and installed in the middle of one end surface of the separation sleeve (16), and a filter screen (20) is fixedly installed on one end surface of the clamping ring (19). An anti-skid groove is provided on the outside of the clamping ring (19) and a friction pad is arranged inside the anti-skid groove.

6. The soil control device for preventing grassland soil degradation according to claim 1, characterized in that: A support bar (21) is welded inside the support sleeve (13), a fan blade (22) is rotatably connected inside the support bar (21) in the air outlet direction of the Venturi tube (14), a convergence tube (23) is welded inside the support sleeve (13) in the air outlet direction of the Venturi tube (14), and the air outlet end of the convergence tube (23) is located inside the air inlet end of the choke tube (24).

7. The soil control device for preventing grassland soil degradation according to claim 6, characterized in that: A fixing ring (25) is welded on the outside of the choke tube (24); spring rods (26) are equidistantly clamped on one end face of the fixing ring (25); a same aluminum disk (27) is clamped and installed between one end faces of a plurality of the spring rods (26); a sealing plug (28) is fixedly installed on one end face of the aluminum disk (27); and the sealing plug (28) is slidably connected to the air outlet port of the choke tube (24).

8. The soil control device for preventing grassland soil degradation according to claim 7, characterized in that: An aluminum column (29) is integrally formed on one end surface of the aluminum plate (27), and the aluminum column (29) penetrates the sealing plug (28) and is located inside the converging tube (23).

9. The soil control device for preventing grassland soil degradation according to claim 2, characterized in that: The turbine inside the gear box is connected to the clamping sleeve (11) via a key, and the worm and the turbine are meshed with each other.

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