A clay trenching and ridging machine

Abstract

This invention discloses a clay ditching and ridging machine, relating to the field of agricultural machinery technology. It includes a frame and a power mechanism, an air filter mechanism, an operating handle, a wheel assembly, a ditching blade assembly, and a ridging mechanism mounted on the frame. The air outlet of the air filter mechanism is connected to the power mechanism, which provides power to the ridging mechanism, the ditching blade assembly, and the wheel assembly. The wheel assembly, the ditching blade assembly, and the ridging mechanism are arranged sequentially from front to back. The ditching blade assembly is used for ditching, and the ridging mechanism is used for compacting and leveling the ridged surface after ditching. This invention's clay ditching and ridging machine solves the problem of soil and dust flying into the power mechanism during ditching and ridging, affecting the machine's service life, by incorporating an air filter mechanism.

Description

Technical Field

[0001] This invention relates to the field of agricultural machinery technology, and in particular to a clay trenching and ridging machine. Background Technology

[0002] In agricultural production, ridge cultivation is the most common cultivation method. Ridge cultivation has advantages such as promoting crop root growth, drainage and flood prevention, and concentrated fertilization, which helps improve crop quality and yield. Ridge cultivation requires a certain depth of furrows and a certain degree of ridge flatness.

[0003] In southern my country, fields are small and the soil is sticky. Existing small, hand-held ditching and ridging machines cannot reach the required ditching depth, and large, suspended ditching and ridging devices are unsuitable for the limited space required for turning in southern regions or for smaller facilities. Furthermore, after ditching, the soil along the ridge edges needs to be compacted and leveled to prevent collapse and maintain the ridge surface; existing ditching and ridging machines lack ridge-shaping capabilities. Additionally, during ditching and ridging, soil and dust are generated, which can easily enter gasoline / diesel engines, causing damage, increasing maintenance costs, and reducing machine lifespan. Summary of the Invention

[0004] The purpose of this invention is to provide a clay trenching and ridging machine, which solves the problem of soil and dust flying into the power mechanism during trenching and ridging, affecting the service life of the machine, by setting an air filter mechanism.

[0005] To achieve the above objectives, the present invention provides the following solution:

[0006] This invention provides a clay trenching and ridging machine, including a frame and a power mechanism, an air filter mechanism, an operating handle, a traveling wheel assembly, a trenching blade assembly, and a ridging mechanism mounted on the frame. The air outlet of the air filter mechanism is connected to the power mechanism, which provides power to the ridging mechanism, the trenching blade assembly, and the traveling wheel assembly. The traveling wheel assembly, the trenching blade assembly, and the ridging mechanism are arranged sequentially from front to back. The trenching blade assembly is used for trenching, and the ridging mechanism is used for compacting and leveling the ridge surface after trenching.

[0007] Preferably, the power mechanism is connected to the gearbox transmission assembly via a belt drive assembly, the gearbox transmission assembly is connected to the walking wheel assembly and the trenching blade assembly respectively, and the gearbox transmission assembly is connected to the ridging mechanism via a sprocket transmission mechanism.

[0008] Preferably, the air filter mechanism includes a front cover, a middle component, and a rear cover arranged sequentially. The front cover has several vent holes arranged circumferentially. An external air intake area is provided at the connection between the front cover and the middle component. An air intake channel is provided on the inner side of the middle component. A first filter cotton assembly, a first filter oil assembly, a cavity, a second filter cotton assembly, and a second filter oil assembly are arranged sequentially from front to back between the air intake channel and the middle component. A front-side air intake area is provided between the outer side of the first filter cotton assembly and the middle component. The first filter cotton assembly is sealed to the front cover. The cavity communicates with the air outlet. Air enters through the external air intake area, passes through the front-side air intake area, and sequentially enters the first filter oil assembly and the first filter cotton assembly for filtration. Then, it passes through the air intake channel and sequentially enters the second filter oil assembly and the second filter cotton assembly for filtration. Finally, it passes through the cavity and the air outlet into the power mechanism.

[0009] Preferably, the external air intake area is provided with a plurality of guide plates evenly arranged circumferentially along the middle part, the guide plates are inclined and the guide plates are at an angle of 30° to 45° with the front end face of the first filter cotton assembly.

[0010] Preferably, the walking wheel assembly includes an outer frame and a reduction mechanism. The reduction mechanism is located in the outer frame. The outer frame includes two rings and several angle irons. The two ends of each angle iron are respectively connected to one of the rings. The corners of the angle irons are arranged outward. The reduction mechanism includes an internal toothed outer hub, a planetary transmission gear, and a gear connecting shaft. The gear connecting shaft is used for transmission connection with the power mechanism. The internal toothed outer hub is connected to the rings. The gear connecting shaft is transmission connected to the internal toothed outer hub through the planetary transmission gear.

[0011] Preferably, the trenching blade assembly includes two blade bodies and a connecting end. The connecting end is used for transmission connection with the power mechanism. The two blade bodies are symmetrically arranged on both sides of the connecting end. Each blade body includes a plurality of blades evenly arranged along the circumference of the blade body. There is an angle α between the plane where the blade body is located and the vertical symmetry plane when the clay trenching and ridging machine is horizontally set. The angle α is 15° to 20°.

[0012] Preferably, the ridging mechanism includes a ridging frame, an eccentric wheel, a transmission link, a connecting structure, a first pusher plate drive link, a second pusher plate drive link, a first ridging pusher plate, and a second ridging pusher plate. The ridging frame is connected to the machine frame. The eccentric wheel is mounted on the ridging frame and rotates relative to the ridging frame. The eccentric wheel is used for transmission connection with the power mechanism. One end of the eccentric wheel is hinged to the transmission link, and the other end of the transmission link is hinged to the connecting structure. One end of the first pusher plate drive link is hinged to the connecting structure, and the other end of the first pusher plate drive link is hinged to the first pusher plate. The first pusher plate is also hinged to the ridging frame. One end of the second pusher plate drive link is hinged to the connecting structure, and the other end of the second pusher plate drive link is hinged to the second pusher plate. The second pusher plate is also hinged to the ridging frame. The first pusher plate and the second pusher plate are symmetrically arranged.

[0013] Preferably, the transmission link, the first push plate drive link, and the second push plate drive link have the same structure. Each of the transmission link, the first push plate drive link, and the second push plate drive link includes a link shaft and two spherical bearings. The two ends of the link shaft are respectively provided with a first threaded section, and each of the spherical bearings is provided with a second threaded section that matches the first threaded section. The link shaft and the spherical bearings are connected through the first threaded section and the second threaded section. The length of the transmission link, the first push plate drive link, or the second push plate drive link can be adjusted by adjusting the connection length of the first threaded section and the second threaded section.

[0014] The present invention achieves the following technical effects compared to the prior art:

[0015] The clay trenching and ridging machine of the present invention can achieve the operation effect of deep trenching in clay and compact and level the ridge surface after trenching in real time, which significantly improves the trenching and ridging operation effect in clay environment; the air filter mechanism of the present invention solves the problem that flying soil and sand dust enter the power mechanism during trenching and ridging, affecting the service life of the machine. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a schematic diagram of the clay trenching and ridging machine of the present invention;

[0018] Figure 2This is an external schematic diagram of the air filter mechanism of the present invention;

[0019] Figure 3 This is a schematic diagram showing the positions of the guide plate, the first filter cotton assembly, and the annular surface of the present invention.

[0020] Figure 4 This is a schematic diagram of the internal structure of the air filter mechanism of the present invention;

[0021] Figure 5 This is a schematic diagram of the ridging mechanism of the present invention;

[0022] Figure 6 This is a schematic diagram of the transmission link, the first push plate drive link, and the second push plate drive link of the present invention.

[0023] Figure 7 This is a schematic diagram of the operation of the ridging mechanism of the present invention;

[0024] Figure 8 This is a schematic diagram of the trenching blade assembly of the present invention;

[0025] Figure 9 This is a schematic diagram of the walking wheel assembly of the present invention;

[0026] Figure 10 This is a schematic diagram of the deceleration mechanism of the present invention;

[0027] Among them: 1-Power mechanism, 2-Air filter mechanism, 3-Operating handle, 4-Ridging mechanism, 5-Ditching blade assembly, 6-Walking wheel assembly, 7-Belt drive assembly, 8-Gearbox drive assembly, 9-Sprocket drive mechanism, 21-Front end cover, 22-Middle end piece, 23-Rear end cover, 211-Ventilation hole, 212-Annular surface, 221-Air outlet, 222-Air intake channel, 223-External air intake area, 224-Front side air intake area, 225-Cavity, 226-Guide plate, 241-First filter cotton assembly, 242-Second filter cotton assembly, 251-First oil filter assembly, 252- Second filter oil assembly, 41-ridger frame, 42-eccentric wheel, 43-transmission connecting rod, 44-first push plate, 45-connecting structure, 46-first push plate drive connecting rod, 47-second push plate drive connecting rod, 48-second push plate, 431-connecting rod shaft, 432-spherical bearing, 4311-screw part, 4321-threaded hole part, 441-moving end, 442-fixed end, 51-blade body, 52-connecting end, 61-external skeleton, 62-reduction mechanism, 611-angle iron, 612-ring, 621-internal toothed outer hub, 622-planetary transmission gear, 623-gear connecting shaft. Detailed Implementation

[0028] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0029] The purpose of this invention is to provide a clay trenching and ridging machine, which solves the problem of soil and dust flying into the power mechanism during trenching and ridging, affecting the service life of the machine, by setting an air filter mechanism.

[0030] To make the above-mentioned objects, features and advantages of the present invention more apparent and understandable, the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0031] like Figures 1 to 10 As shown: This embodiment provides a clay ditching and ridging machine, including a frame and a power mechanism 1, an air filter mechanism 2, an operating handle 3, a traveling wheel assembly 6, a ditching blade assembly 5, and a ridging mechanism 4 mounted on the frame. The air outlet 221 of the air filter mechanism 2 is connected to the power mechanism 1. The power mechanism 1 is a gasoline engine or a diesel engine. Filtered clean air is injected into the power mechanism 1 through the air outlet 221. The power mechanism 1 is used to provide power to the ridging mechanism 4, the ditching blade assembly 5, and the traveling wheel assembly 6. The traveling wheel assembly 6, the ditching blade assembly 5, and the ridging mechanism 4 are arranged sequentially from front to back. In this embodiment, the clay ditching and ridging machine is controlled to move forward by the operating handle 3. The ditching blade assembly 5 is used to turn over the newly entered soil, and the ridging mechanism 4 is used to perform ditching and ridging actions to compact and level the ridge surface after ditching.

[0032] Specifically, in this embodiment, the power mechanism 1 is connected to the gearbox transmission assembly 8 via the belt transmission assembly 7, the gearbox transmission assembly 8 is connected to the walking wheel assembly 6 and the trenching blade assembly 5 respectively, and the gearbox transmission assembly 8 is connected to the ridging mechanism 4 via the sprocket transmission mechanism 9.

[0033] In this embodiment, the air filter mechanism 2 is vertically arranged and includes a front cover 21, a middle part 22, and a rear cover 23 arranged sequentially from front to back. The front cover 21 has a plurality of vent holes 211 arranged along its circumference to discharge solid impurities such as dirt and dust from the air. An external air intake area 223 is provided at the connection between the front cover 21 and the middle part 22. An air intake channel 222 is provided on the inner side of the middle part 22. A first filter cotton assembly 241 and a first filter oil assembly are arranged sequentially from front to back between the air intake channel 222 and the middle part 22. 251, cavity 225, second filter cotton assembly 242, and second oil filter assembly 252. The outer diameter of the first filter cotton assembly 241 is smaller than the inner diameter of the middle part 22. When the first filter cotton assembly 241 is installed into the middle part 22, a front side air intake area 224 is formed between the outer side of the first filter cotton assembly 241 and the middle part 22. The first filter cotton assembly 241 is sealed to the annular surface 212 on the inner side of the front cover 21, so that air can only enter the air filter mechanism 2 through the front side air intake area 224. The cavity 225 is connected to the air outlet 221. During the operation of the ditching and ridging machine, the air required by the power mechanism 1 enters through the external air intake area 223, and some solid particles such as soil are discharged through the vent 211. The air then enters through the front side air intake area 224 and enters the first oil filter assembly 251 stored at the bottom of the front end of the middle part 22. After passing through the oil filter, it enters the first cotton filter assembly 241 installed at the front end of the middle part 22. After being filtered again by the first cotton filter assembly 241, it enters directly through the air intake channel 222 into the second oil filter assembly 252 stored at the bottom of the rear end cover 23. After passing through the oil filter again, it passes through the second cotton filter assembly 242 installed in the rear end cover 23. Finally, the clean air enters the cavity 225 formed by the middle part 22 and the rear end cover 23, and then enters the power mechanism 1 through the air outlet 221 to provide the air required for the operation of the power mechanism 1.

[0034] In this embodiment, the external air intake area 223 is provided with a plurality of guide plates 226 evenly arranged around the circumference of the middle component 22. The guide plates 226 are inclined and form an angle of 30° to 45° with the front end face of the first filter cotton assembly 241. When the equipment moves forward, this helps to create a vortex in the air entering the air filter mechanism 2 through the air intake channel 222, generating centrifugal force, thereby smoothly expelling denser dust such as dirt from the vent holes 211 of the front cover 21.

[0035] In this embodiment, the trenching blade assembly 5 includes two blade bodies 51 and a connecting end 52. The connecting end 52 is used for transmission connection with the power mechanism 1. The two blade bodies 51 are symmetrically arranged on both sides of the connecting end 52. Each blade body 51 includes a number of blades evenly arranged around the circumference of the blade body 51. There is an angle α between the plane where the blade body 51 is located and the vertical symmetry plane when the clay trenching and ridging machine is set horizontally (i.e., the plane where the gearbox transmission assembly 8 is located). The angle α is 15° to 20°, which ensures better fit with the southern field area during trenching and tillage operations, better dispersing of the sticky soil and plant root fragments, effectively improving the efficiency of trenching and tillage operations, and reducing the burden of subsequent ridging operations.

[0036] In this embodiment, the ridging mechanism 4 includes a ridging frame 41, an eccentric wheel 42, a transmission link 43, a connecting structure 45, a first push plate drive link 46, a second push plate drive link 47, a first push plate 44, and a second push plate. The ridging frame 41 is connected to the frame. The eccentric wheel 42 is mounted on the ridging frame 41 and rotates relative to the ridging frame 41. The eccentric wheel 42 is used for transmission connection with the power mechanism 1. One end of the eccentric wheel 42 is hinged to the transmission link 43, and the other end of the transmission link 43 is connected to the connecting structure 45. The first push plate drive link 46 is hinged at one end to the connecting structure 45, which is rotatably connected to the ridging machine frame 41. The other end of the first push plate drive link 46 is hinged to the first push plate 44, which is also hinged to the ridging machine frame 41. One end of the second push plate drive link 47 is hinged to the connecting structure 45, and the other end of the second push plate drive link 47 is hinged to the second push plate 48, which is also hinged to the ridging machine frame 41. The first push plate 44 and the second push plate 48 are symmetrically arranged. Driven by the power mechanism 1, the belt drive assembly 7 and the gearbox drive assembly 8 drive the sprocket drive mechanism 9 to rotate, which in turn drives the eccentric wheel 42 to rotate and causes the transmission rod 43 connected to it to move up and down. Through the connecting structure 45, the first push plate drive rod 46 and the second push plate drive rod 47 move up and down. Since the fixed ends 442 of the first push plate 44 and the second push plate 48 are both hinged to the ridging machine frame 41, and the moving ends 441 of the first push plate 44 and the second push plate 48 are respectively connected to the first push plate drive rod 46 and the second push plate drive rod 47, when the first push plate drive rod 46 and the second push plate drive rod 47 move up and down with the rotation of the connecting structure 45, the first push plate 44 and the second push plate 48 on both sides are driven to rotate around their respective fixed ends 442, pushing the soil after being tilled by the furrowing blade assembly 5 to both sides, thus completing the ridging operation.

[0037] Specifically, when the eccentric wheel 42 is in its initial state, the transmission connecting rod 43 is at its lowest point, and the first push plate 44 and the second push plate 48 on both sides are in a closed state; when the power mechanism 1 drives the eccentric wheel 42 to rotate 180°, as Figure 7As shown on the right, the transmission connecting rod 43 mounted on the eccentric wheel 42 moves to its highest position, causing the connecting structure 45 to rotate 30-45°. The first push plate 44 and the second push plate 48, hinged at one end to the ridging machine frame 41, rotate 30-45° around their respective fixed ends 442 under the drive of the first push plate driving connecting rod 46 and the second push plate driving connecting rod 47, respectively. At this time, the first push plate 44 and the second push plate 48 on both sides are in the open state. When the eccentric wheel 42 rotates 180° back to its initial state, the first push plate 44 and the second push plate 48 on both sides return to their original closed state. Driven by the power mechanism 1, the belt drive assembly 7 and the gearbox drive assembly 8 drive the sprocket drive mechanism 9, enabling the first push plate 44 and the second push plate 48 on both sides to open and close back and forth as the eccentric wheel 42 rotates, pushing the soil treated by the trenching blades to both sides, thus achieving the ridging operation.

[0038] In this embodiment, the transmission link 43, the first push plate drive link 46, and the second push plate drive link 47 have the same structure. The transmission link 43, the first push plate drive link 46, and the second push plate drive link 47 all include a link shaft 431 and two spherical bearings 432. The screw portions 4311 at both ends of the link shaft 431 are respectively provided with a first threaded section. Each spherical bearing 432 is provided with a threaded hole portion 4321. The threaded hole portion 4321 is provided with a second threaded section that matches the first threaded section. The link shaft 431 and the spherical bearings 432 are connected through the first threaded section and the second threaded section. The length of the transmission link 43, the first push plate drive link 46, or the second push plate drive link 47 can be adjusted by adjusting the connection length of the first threaded section and the second threaded section. Based on the actual soil conditions, if the ridging angle of the current ridging mechanism 4 cannot meet the requirements after tilling with the furrowing blades, the following adjustments are made: The number of turns of tightening the screw part 4311 and the threaded hole part 4321 of the spherical bearing 432 is reduced, increasing the overall length of the first push plate drive link 46 and the second push plate drive link 47. Simultaneously, the number of turns of tightening the screw part 4311 and the threaded hole part 4321 is increased, shortening the transmission link 43 and increasing the opening angle of the first push plate 44 and the second push plate 48 on both sides. The swing angle of the first push plate 44 and the second push plate 48 needs to be adjusted according to the soil's hardness. Generally, if the soil is sticky, the swing angle of the first push plate 44 and the second push plate 48 needs to be larger to achieve a better shaping effect. If the soil is loose, the ridge surface shaping can be achieved by adjusting the dimensions of the transmission link 43, the first push plate drive link 46, and the second push plate drive link 47 to reduce the angle of the first push plate 44 and the second push plate 48.

[0039] In this embodiment, the walking wheel assembly 6 includes an outer frame 61 and a reduction mechanism 62. The reduction mechanism 62 is located within the outer frame 61. The outer frame 61 includes two circular rings 612 and several angle irons 611. The angle irons 611 are evenly arranged along the circumference of the circular rings 612. Each angle iron 611 has its two ends welded to a circular ring 612, with the corners of the angle irons 611 facing outwards. The wheel-shaped structure, formed by evenly welding the two ends of multiple sets of angle irons 611 to the outside of the two circular rings 612, allows the clay ditching and ridging machine to move smoothly in the narrow, sticky soil areas of southern China. During ditching and ridging operations, the corners of the angle irons 611 make linear contact with the field, preventing excessive clay from being stirred up and increasing the walking burden. Furthermore, the even distribution of multiple sets of angle irons 611 prevents the machine from sinking into soft soil during operation, ensuring smooth operation. The stability of the operation; the reduction mechanism 62 includes an internal gear outer hub 621, planetary transmission gears 622 and gear connecting shaft 623. The gear connecting shaft 623 is used for transmission connection with the power mechanism 1. The internal gear outer hub 621 is connected to the ring 612. The gear connecting shaft 623 and the internal gear outer hub 621 are connected by three sets of planetary transmission gears 622. The planetary transmission gears 622 mesh with the internal gear outer hub 621 and the gear connecting shaft 623 respectively, transmitting the power of the gearbox transmission assembly 8 to the internal gear outer hub 621 through the gear connecting shaft 623. This drives the external frame 61 welded to the outside of the internal gear outer hub 621 to move, reducing the power output of the reduction mechanism 62 to a suitable speed output, ensuring that the walking wheel assembly 6 travels at low speed, and is linked with the ditching blade assembly 5 and the ridging mechanism 4 to complete the ditching and ridging operation.

[0040] The power unit 1 of the clay trenching and ridging machine in this embodiment is equipped with an air filter 2. The air filter 2 is a layered air impurity filtration structure, which can effectively separate and remove impurities such as broken soil from the air. The two-stage filtration ensures the cleanliness of the air entering the power unit 1, preventing damage to the power unit 1 due to impurities in the air. This solves the problem of soil and dust flying into the power unit 1 during trenching and ridging, which affects the service life of the machine. In this embodiment, the blade body 51 is arranged at an angle, which reduces the blade resistance during trenching and is conducive to achieving the effect of deep trenching in clay. In this embodiment, the speed reduction mechanism 62... Built into the ditching wheels, it can significantly reduce the walking speed during ditching operations, further improving the effect of deep ditching in clay. At the same time, when ditching is not required, the machine's transport speed can be increased by changing the walking wheels. In this embodiment, the ridging mechanism 4, while completing the ditching operation, compacts and shapes the ridge surface in real time, improving the ditching effect. Furthermore, according to the looseness of the soil, the dimensions of the transmission connecting rod 43, the first push plate drive connecting rod 46, and the second push plate drive connecting rod 47 are adjusted, thereby changing the swing angle of the first push plate 44 and the second push plate 48, which is suitable for shaping the ridge surface of soil with different moisture contents.

[0041] This specification uses specific examples to illustrate the principles and implementation methods of the present invention. The descriptions of the above embodiments are only for the purpose of helping to understand the method and core ideas of the present invention. Furthermore, those skilled in the art will recognize that, based on the ideas of the present invention, there will be changes in the specific implementation methods and application scope. Therefore, the content of this specification should not be construed as a limitation of the present invention.

Claims

1. A clay trenching and ridging machine, characterized in that: The machine includes a frame and a power mechanism, an air filter mechanism, an operating handle, a traveling wheel assembly, a ditching blade assembly, and a ridging mechanism mounted on the frame. The air outlet of the air filter mechanism is connected to the power mechanism. The power mechanism provides power to the ridging mechanism, the ditching blade assembly, and the traveling wheel assembly. The traveling wheel assembly, the ditching blade assembly, and the ridging mechanism are arranged sequentially from front to back. The ditching blade assembly is used to make ditches, and the ridging mechanism is used to compact and level the ridged surface after ditching. The ridging mechanism includes a ridging frame, an eccentric wheel, a transmission link, a connecting structure, a first push plate drive link, a second push plate drive link, a first push plate, and a second push plate. The ridging frame is connected to the machine frame. The eccentric wheel is mounted on the ridging frame and rotates relative to the ridging frame. The eccentric wheel is used for transmission connection with the power mechanism. One end of the eccentric wheel is hinged to the transmission link, and the other end of the transmission link is hinged to the connecting structure. One end of the first push plate drive link is hinged to the connecting structure, and the other end of the first push plate drive link is hinged to the first push plate near the upper part. The fixed end of the first push plate near the lower part is also hinged to the ridging frame. One end of the second push plate drive link is hinged to the connecting structure, and the other end of the second push plate drive link is hinged to the second push plate near the upper part. The fixed end of the second push plate near the lower part is also hinged to the ridging frame. The first push plate and the second push plate are symmetrically arranged. The transmission link, the first push plate drive link, and the second push plate drive link have the same structure. Each of the transmission link, the first push plate drive link, and the second push plate drive link includes a link shaft and two spherical bearings. The two ends of the link shaft are respectively provided with a first threaded section, and each of the spherical bearings is provided with a second threaded section that matches the first threaded section. The link shaft and the spherical bearings are connected through the first threaded section and the second threaded section. The length of the transmission link, the first push plate drive link, or the second push plate drive link can be adjusted by adjusting the connection length of the first threaded section and the second threaded section.

2. The clay trenching and ridging machine according to claim 1, characterized in that: The power mechanism is connected to the gearbox transmission assembly via a belt drive assembly. The gearbox transmission assembly is connected to the walking wheel assembly and the trenching blade assembly. The gearbox transmission assembly is connected to the ridging mechanism via a sprocket transmission mechanism.

3. The clay trenching and ridging machine according to claim 1, characterized in that: The air filter mechanism includes a front cover, a middle component, and a rear cover arranged sequentially. The front cover has several vent holes along its circumference. An external air intake area is provided at the connection between the front cover and the middle component. An air intake channel is provided on the inner side of the middle component. Between the air intake channel and the middle component, from front to back, are arranged a first filter cotton assembly, a first filter oil assembly, a cavity, a second filter cotton assembly, and a second filter oil assembly. A front-side air intake area is provided between the outer side of the first filter cotton assembly and the middle component. The first filter cotton assembly is sealed to the front cover. The cavity communicates with the air outlet. Air enters through the external air intake area, passes through the front-side air intake area, and sequentially enters the first filter oil assembly and the first filter cotton assembly for filtration. Then, it passes through the air intake channel and sequentially enters the second filter oil assembly and the second filter cotton assembly for filtration. Finally, it passes through the cavity and the air outlet into the power mechanism.

4. The clay trenching and ridging machine according to claim 3, characterized in that: The external air intake area is provided with a plurality of guide plates evenly arranged along the circumference of the middle component. The guide plates are inclined and the angle between the guide plates and the front end face of the first filter cotton assembly is 30° to 45°.

5. The clay trenching and ridging machine according to claim 1, characterized in that: The walking wheel assembly includes an outer frame and a reduction mechanism. The reduction mechanism is located in the outer frame. The outer frame includes two rings and several angle irons. The two ends of each angle iron are connected to one of the rings. The corners of the angle irons face outwards. The reduction mechanism includes an internal gear outer hub, a planetary transmission gear, and a gear connecting shaft. The gear connecting shaft is used for transmission connection with the power mechanism. The internal gear outer hub is connected to the rings. The gear connecting shaft and the internal gear outer hub are transmission connected through the planetary transmission gear.

6. The clay trenching and ridging machine according to claim 1, characterized in that: The trenching blade assembly includes two blade bodies and a connecting end. The connecting end is used for transmission connection with the power mechanism. The two blade bodies are symmetrically arranged on both sides of the connecting end. Each blade body includes a plurality of blades evenly arranged along the circumference of the blade body. There is an angle α between the plane where the blade body is located and the vertical symmetry plane when the clay trenching and ridging machine is set horizontally. The angle α is 15°~20°.

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