Tea garden ditcher capable of dynamically cleaning in disc

Abstract

The invention relates to the technical field of agricultural instruments, and discloses a tea garden ditcher capable of dynamically cleaning in a disc, which is provided with a rack, a ditching wheel disc, a driver, a ditching blade and a fixed frame, the driver is connected with the tail part of the furrowing blade through a single crankshaft assembly; the furrowing blade disc inner scraper blade is in transmission connection with the furrowing wheel disc through a transmission rod; the ditching wheel disc comprises a connecting block, a connecting disc, a force transmission piece and two ditching discs, the two sides of the fixing frame are rotationally connected with in-disc scraping plates, the two in-disc scraping plates are close to the inner side faces of the two ditching discs respectively, a sliding block is connected to the fixing frame in a sliding mode, the inner ends of the two in-disc scraping plates are connected with the sliding block through a tension spring, and the force transmission piece is in transmission connection with the sliding block. The transmission rod is arranged between the furrowing wheel disc and the furrowing blade to realize power linkage, the periodic action of the furrowing blade is converted into dynamic pulling force on the two inner scraping plates through the transmission rod, and the two inner scraping plates dynamically scrape soil on the two inner side faces of the furrowing wheel disc under the action of the dynamic pulling force.

Description

Technical Field

[0001] The embodiments of the present invention relate to the technical field of agricultural machinery, and in particular to a tea garden trenching machine with dynamic cleaning inside the disc. Background Art

[0002] Tea garden fertilizer spreader is a key agricultural equipment for tea garden management in hilly areas. It digs loose soil through a trenching shovel that reciprocates on the machine body, and uses a trenching wheel on the machine body to roll along the excavated soil to squeeze the soil to create grooves. Since tea garden planting areas are mainly on hillsides with high altitudes, the surface of the tea garden is generally prone to clay compaction and root entanglement, and there is a lot of gravel in the soil. Traditional fertilizer spreaders often interrupt their operations due to wheel slippage and trencher blockage. Dynamic obstacle clearance capability and power distribution efficiency have become the core bottlenecks restricting the quality of fertilization.

[0003] In the prior art, Chinese patent publication number CN114711000A proposes a double-disc furrow opener for mixed grass sowing and fertilization. The device consists of a seeding wheel seat, a seeding disc, a support plate and other components. The double-disc device rotates to open furrows, and a rigidly fixed scraper is used to remove the soil between the discs to cover the fertilizer. Although this solution can achieve basic furrowing and fertilization functions, its design logic is mainly targeted at the soil environment for grass planting.

[0004] However, the existing technology still has the defect of easily damaged scrapers when applied to the soil on the hillside of tea gardens. When the excavator rolls along the excavated soil to dig trenches, the soil adhered to the inner side of the trenching wheel will continue to move toward the fixed scraper and be scraped off as the trenching wheel rolls. When a rigidly fixed scraper is used to continuously scrape the soil from the rotating trenching wheel, the excessive concentration of the interaction force between the scraper and the soil will cause the internal stress of the scraper to increase sharply, which may cause the scraper to deform or break at the connection between the scraper and the body, thereby reducing the scraping effect of the soil inside the trenching wheel. Summary of the Invention

[0005] To this end, an embodiment of the present invention provides a tea garden trenching machine with dynamic cleaning inside the disc to solve the problems in the prior art.

[0006] In order to achieve the above objectives, the embodiments of the present invention provide the following technical solutions: A tea garden trenching machine with dynamic cleaning inside the plate, having: frame; A trenching wheel disc is provided on the frame and is used to move in the trench. The trenching wheel disc includes a connecting block fixedly connected to the frame, a connecting plate fixedly connected to the bottom of the connecting block, and trenching plates for contacting one side of the trench are rotatably connected on both sides of the connecting plate; A driver, fixedly arranged on the frame; A trenching shovel, wherein the driver is connected to the tail of the trenching shovel via a single crankshaft assembly, and the scraper inside the trenching shovel disc is connected to the trenching wheel disc via a transmission rod. The tail of the trenching shovel performs circular motion around the rotation axis of the single crankshaft assembly under the power of the driver and performs repeated soil shoveling actions under the restraining action of the transmission rod; A fixing frame is mounted on the connecting block, and both sides of the fixing frame are rotatably connected to inner scrapers, the two inner scrapers are respectively close to the inner side surfaces of the two trenching discs, and the distances between the two inner scrapers and the corresponding trenching discs are set to enable the inner scrapers to scrape away the mud on the inner side surfaces of the trenching discs; A slider is slidably connected to the fixing frame, the front ends of the two inner scrapers of the disc protrude corresponding to the wheel surface of the ditching disc, and the inner ends are connected to the slider via a tension spring, and a force transmission member for connecting to the transmission rod is provided on the connecting block, and the force transmission member is in transmission connection with the slider; During the transmission process, the transmission rod controls the periodic lifting and lowering of the slider through the force transmission member, so as to periodically apply different amounts of tension to the inner ends of the two scrapers in the disc through the two tension springs, so as to periodically change the interaction force between the outer ends of the scrapers in the disc and the soil on the inner side surface of the corresponding trenching disc, so as to allow the scrapers in the disc to move around their rotation points.

[0007] As a preferred solution of the present invention, the transmission sleeve adjusts the longitudinal distance between the transmission sleeve and the two inner scrapers of the disk by sliding on the fixing frame, and the two inner scrapers of the disk are always located below the transmission sleeve.

[0008] As a preferred solution of the present invention, the force transmission member includes a sliding tube fixedly connected to the connecting block, a slider is slidably connected to the sliding tube, one end of the transmission rod is rotatably connected to the slider, a connecting rope is provided on one side of the slider and connected to the top of the slider, and when the slider slides in the sliding tube, the connecting rope controls the lifting of the slider, and a groove is provided on the end of the sliding tube close to the transmission rod.

[0009] As a preferred solution of the present invention, the trenching shovel performs repeated shoveling actions and one end of the transmission rod performs periodic stretching actions in the force transmission member. During the transmission process, the transmission frame applies dynamic tension of different sizes to the two tension springs through the force transmission member and the slider.

[0010] As a preferred solution of the present invention, the slider at any height position can provide tension to the two scrapers in the disk through the two tension springs respectively, and the height of the slider on the fixed frame is proportional to the tension provided by the slider to the scrapers in the disk through the tension springs.

[0011] As a preferred solution of the present invention, a connecting shaft and a limiting column are provided on both sides of the fixed frame, and the two scrapers in the disk are respectively rotatably connected to the connecting shaft. The two limiting columns are located between the slider and the corresponding scraper in the disk, and the limiting columns are used to limit the rotation range of the scraper in the disk.

[0012] As a preferred solution of the present invention, the scraper inside the disk includes an oblique blade section, a plate section and a force application section from the outer end to the inner end, the connecting shaft is located in the plate section, and the tension spring is located in the force application section.

[0013] As a preferred solution of the present invention, during the operation of the inner-disk scraper, the beveled edge section always protrudes from the side edge of the grooving disc wheel, and the rotation amplitude of the inner-disk scraper during the operation is proportional to the protruding length of the beveled edge section.

[0014] As a preferred solution of the present invention, the tension spring provides tension to cause the scraper in the disk to rotate until the force-applying section contacts the corresponding limiting column, and the scraper in the disk is at an initial angle when the force-applying section contacts the corresponding limiting column.

[0015] As a preferred embodiment of the present invention, the single crankshaft assembly includes a pair of bearings arranged on the frame, a main shaft body is rotatably connected in both bearings, corresponding bearings are extended from the opposite ends of the two main shaft bodies and are provided with connecting plates, an eccentric shaft body is commonly connected between the two connecting plates, a transmission sleeve is fixedly sleeved on both main shaft bodies, and the outer sides of the two transmission sleeves are transmission-connected to the output end of the driver through a sleeve chain; The output end of the driver causes the two main shafts to rotate in the two bearings through two chains, and the central axes of the two bearings and the two main shafts coincide with each other.

[0016] The embodiments of the present invention have the following advantages: The present invention converts the rotational motion of the driver on the frame into the periodic soil-shoveling motion of the trenching shovel through a single crankshaft assembly, and arranges a transmission rod between the trenching wheel disc and the trenching shovel to realize power linkage. By utilizing the transmission rod, the periodic motion of the trenching shovel is converted into a dynamic pulling force on the two inner scrapers of the disc. The inner scraper of the disc rotatably connected to the inner side of the trenching wheel disc realizes dynamic scraping of the soil on the two inner sides of the trenching wheel disc under the action of the dynamic pulling force, thereby reducing the probability of deformation and damage of the inner scraper of the disc and ensuring the effect of the inner scraper of the disc in scraping the soil on the two inner sides of the trenching wheel disc. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] To more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for the embodiments or the description of the prior art. Obviously, the drawings described below are merely exemplary, and those skilled in the art can derive other implementation drawings based on the provided drawings without inventive effort.

[0018] The structures, proportions, sizes, etc. illustrated in this specification are intended only to complement the contents disclosed herein and to facilitate understanding and reading by persons familiar with the art. They are not intended to limit the conditions under which the present invention may be implemented and therefore have no substantive technical significance. Any structural modifications, changes in proportions, or adjustments in sizes, without affecting the efficacy and objectives of the present invention, shall still fall within the scope of the technical contents disclosed herein.

[0019] Figure 1 This is a schematic diagram of the overall structure of the device in an embodiment of the present invention; Figure 2 Schematic diagram of the structure of a single crankshaft assembly in an embodiment of the present invention; Figure 3 A side view of the entire device according to an embodiment of the present invention; Figure 4 In the embodiment of the present invention Figure 3 A magnified view of middle A; Figure 5 Schematic diagram of the scraper in the disk in an embodiment of the present invention.

[0020] In the picture: 10- rack; 1-ditching wheel; 2-driver; 3-ditching blade; 4-single crankshaft assembly; 5-drive rod; 6-fixing frame; 7-scraper in the wheel; 8-slider; 101-connecting block; 102-connecting plate; 103-grooving plate; 104-force transmission member; 1041-sliding tube; 1402-sliding block; 1043-connecting rope; 1044-cutting groove; 401-bearing; 402-main shaft; 403-connecting piece; 404-eccentric shaft; 405-transmission sleeve; 601-coupling shaft; 602-limiting column; 701- oblique blade section; 702- plate section; 703- force application section; 801-tension spring. DETAILED DESCRIPTION

[0021] The following describes the implementation of the present invention using specific embodiments. Those skilled in the art will readily understand the other advantages and benefits of the present invention from the disclosure herein. Obviously, the embodiments described are only a portion of the present invention, not all of it. All other embodiments derived by persons of ordinary skill in the art based on the embodiments of the present invention without inventive effort are intended to fall within the scope of protection of the present invention.

[0022] like Figures 1 to 5 As shown, this embodiment provides a tea garden trenching machine with dynamic cleaning inside the disc. The present invention aims to solve the problem of easy damage of the scraper caused by soil adhesion inside the trenching wheel 1, which is mainly achieved by converting the periodic motion of the trenching shovel 3 into a dynamic pulling mechanism of the scraper 7 inside the disc.

[0023] have: Rack 10; The trenching wheel 1 is arranged on a frame 10 and is used to move in the trench. The trenching wheel 1 includes a connecting block 101 fixedly connected to the frame 10. A connecting plate 102 is fixedly connected to the bottom of the connecting block 101. Both sides of the connecting plate 102 are rotatably connected to trenching plates 103 for contacting one side of the trench. The driver 2 is fixedly mounted on the frame 10; The trenching shovel 3 has a driver 2 connected to the tail of the trenching shovel 3 via a single crankshaft assembly 4. The scraper 3 inside the trenching shovel is connected to the trenching wheel disc 1 via a transmission rod 5. The tail of the trenching shovel 3 moves in a circular motion around the rotation axis of the single crankshaft assembly 4 under the power of the driver 2 and performs repeated shoveling actions under the restriction of the transmission rod 5. A fixing frame 6 is mounted on the connecting block 102, and inner-disc scrapers 7 are rotatably connected to both sides of the fixing frame 6. The two inner-disc scrapers 7 are respectively close to the inner side surfaces of the two trenching discs 103, and the distance between the two inner-disc scrapers 7 and the corresponding trenching discs 103 is set to enable the inner-disc scrapers 7 to scrape away the mud on the inner side surfaces of the trenching discs 103; The fixed frame 6 is slidably connected to a slider 8. The front ends of the scrapers 7 in the two disks protrude from the wheel surface of the corresponding trenching disk 103. The inner ends are connected to the slider 8 through a tension spring 801. The connecting block 101 is provided with a force transmission member 104 for connecting to the transmission rod 5, and the force transmission member 104 is in transmission connection with the slider 8. During the transmission process, the transmission rod 5 controls the periodic lifting and lowering of the slider 8 through the force transmission member 104, so as to periodically apply different amounts of tension to the inner ends of the two inner scrapers 7 through the two tension springs 801, so as to periodically change the interaction force between the outer ends of the inner scrapers 7 and the soil on the inner side of the corresponding trenching disc 103, so as to allow the inner scrapers 7 to move around their rotation points.

[0024] The present invention provides two rotatable inner-disc scrapers 7 in the trenching wheel 1. When the two inner-disc scrapers 7 continuously scrape the mud inside the two trenching discs 103, the two inner-disc scrapers 7 rotate to unload the force to avoid stress concentration when scraping mud on the inner-disc scrapers 7. At the same time, the transmission rod 5 links the reciprocating motion of the trenching shovel 3 and applies a dynamic upward pulling force to the slider 8 through the force transmission member 104, so that the slider 8 applies a dynamic pulling force of resetting to the two inner-disc scrapers 7 through two tension springs 801, thereby ensuring the cleaning effect of the inner sides of the two trenching discs 103 and improving the problem of easy wear of the scraper in the clay environment of the tea garden.

[0025] The single crankshaft assembly 4 includes a pair of bearings 401 disposed on the frame 10. A main shaft body 402 is rotatably connected to each of the two bearings 401. Corresponding bearings 401 are extended from the facing ends of the two main shaft bodies 402 and are provided with connecting pieces 403. An eccentric shaft body 404 is commonly connected between the two connecting pieces 403. A transmission sleeve 405 is fixedly sleeved on each of the two main shaft bodies 402. The outer sides of the two transmission sleeves 405 are transmission-connected to the output end of the driver 2 via a sleeve chain. The output end of the driver 2 causes the two main shaft bodies 402 to rotate in the two bearings 401 through two chains, and the central axes of the two bearings 401 and the two main shaft bodies 402 coincide with each other.

[0026] Specifically, if Figure 2 As shown, in order to convert the rotational motion of the driver 2 into the periodic shoveling action of the trenching shovel 3, the driver 2 synchronously drives the transmission sleeve 405 through a double chain, driving the main shaft body 402 to rotate coaxially in the bearing 401; the eccentric shaft body 404 moves in a circular motion with the main shaft body 402, pushing the tail of the trenching shovel 3 to swing, and at the same time, under the constraint of the transmission rod 5, it is converted into a reciprocating earth-penetrating action of the shovel tip, ensuring low-resistance shoveling and transmitting power to the transmission rod 5.

[0027] The transmission sleeve 8 slides on the fixing frame 6 to adjust the longitudinal distance between the transmission sleeve 8 and the two inner scrapers 7 , and the two inner scrapers 7 are always located below the transmission sleeve 8 .

[0028] Specifically, the sliding stroke of the slider 8 is designed to adapt to different soil resistance conditions. When the scrapers 7 in the two discs do not scrape off the soil, the tension applied by the slider 8 to the two tension springs 801 is the initial tension applied by the two tension springs 801 to the scrapers 7 in the two discs.

[0029] Furthermore, when the slider 8 is in the lowest position on the fixed frame 6, the initial tension applied by the slider 8 to the two tension springs is the smallest. At this time, if the scraper 7 in the disk scrapes the soil and comes into contact with high-resistance objects (such as roots, stones, etc.) in it, the scraper 7 in the disk will rotate rapidly to unload the force, reducing the damage to the scraper 7 in the disk caused by rapid rigid collision; when the slider 8 is in the highest position on the fixed frame 6, the initial tension applied by the slider 8 to the two tension springs is the largest, thereby applying a larger reset tension to the scraper 7 in the disk that rotates to the unloading state, ensuring that the scraper 7 in the disk can always maintain a relatively ideal scraping effect. This design takes into account both mud cleaning stability and structural safety.

[0030] This embodiment applies elastic tension to the ends of the two disk scrapers 7 so that the two disk scrapers 7 can reset themselves when they are rotated by force, thereby making the two disk scrapers 7 less susceptible to damage and ensuring the scraping effect. The top ends of the two tension springs 801 are fixedly connected to the corresponding positions on the connecting block 101. In order to ensure the scraping effect of the two disk scrapers 7, the tension of the two tension springs 801 needs to be set to the maximum value within an acceptable range, so that the two tension springs 801 apply a constant tension to the two disk scrapers 7 to achieve a similar effect. In this embodiment, the two tension springs 801 are set to dynamic tension, considering that the dynamic tension applied by the tension spring 801 to the disk scraper 7 when it is at the lowest tension and the highest tension is more suitable for complex soil scraping environments.

[0031] For example, it is assumed that the initial tension applied by the fixedly connected tension spring 801 to the disk scraper 7 is 100N, and the dynamic tension applied to the tension spring 801 in this embodiment makes the tension applied by the tension spring 801 to the disk scraper 7 be between 50N and 100N; when the disk scraper 7 collides with stones in the soil, the pressure it is subjected to is 200N, then the disk scraper 7 under the action of 100N tension will quickly rotate 15 degrees to unload the force, and the disk scraper 7 under the action of 50N tension will quickly rotate 30 degrees to unload the force, and under the action of the tension spring 801 with dynamic tension, the tension applied to the disk scraper 7 is less than 100N most of the time. Therefore, compared with the fixed tension spring 801, the dynamic tension spring 801 provided in this embodiment is more suitable for soil scraping in complex environments.

[0032] Among them, the force transmission member 104 includes a sliding tube 1041 fixedly connected to the connecting block 101, a slider 1042 is slidably connected in the sliding tube 1041, one end of the transmission rod 5 is rotatably connected to the slider 1042, and a connecting rope 1043 is provided on one side of the slider 1042 to connect with the top of the slider 8. When the slider 1042 slides in the sliding tube 1041, the connecting rope 1043 controls the lifting of the slider 8. A groove 1044 is opened on the end of the sliding tube 1041 near the transmission rod 5.

[0033] Specifically, in order to avoid power transmission jamming, the reciprocating motion of the transmission rod 5 pushes the slider 1042 to slide in the sliding tube 1041, and the slider 8 is pulled up and down by the connecting rope 1043; the groove 1044 allows the transmission rod 5 to freely extend when swinging, preventing the transmission rod 5 from colliding with the inner wall of the sliding tube 1041, ensuring that there is no rigid interference in the force transmission process, and improving the system reliability.

[0034] Among them, the trenching shovel 3 performs repeated shoveling actions and one end of the transmission rod 5 performs periodic stretching actions in the force transmission member 104. During the transmission process, the transmission frame 5 applies dynamic tension of different sizes to the two tension springs 801 through the force transmission member 104 and the slider 8.

[0035] The slider 8 at any height position can provide tension to the two inner scrapers 7 through the two tension springs 801 . The height of the slider 8 on the fixing frame 6 is proportional to the tension provided by the slider 8 to the inner scrapers 7 through the tension springs 801 .

[0036] Specifically, when the height of the slider 8 is lowered, the elongation of the tension spring 801 increases, thereby increasing the pulling force on the inner end of the scraper 7 in the disc, and improving the power of the scraper 7 in the disc to rotate and reset. At the same time, the longer the outer end of the scraper 7 in the disc protrudes from the inner outer edge of the ditching disc 106, the better the scraping effect; conversely, when the height of the slider 8 is lowered, the pulling force is reduced, so that the scraper 7 in the disc has a better effect of retreating and unloading when encountering hard objects. This proportional relationship ensures the dynamic matching of the scraping force and the soil resistance.

[0037] Among them, such as Figure 5 As shown, a connecting shaft 601 and a limiting column 602 are provided on both sides of the fixing frame 6, and the two inner scrapers 7 are respectively rotatably connected to the connecting shaft 601. The two limiting columns 602 are located between the slider 8 and the corresponding inner scraper 7. The limiting columns 602 are used to limit the rotation range of the inner scraper 7.

[0038] The scraper 7 in the disk includes an oblique blade section 701 , a plate section 702 and a force application section 703 from the outer end to the inner end. The connecting shaft 601 is located in the plate section 702 , and the tension spring 801 is located in the force application section 703 .

[0039] During the operation of the inner scraper 7 , the oblique blade section 701 always protrudes from the wheel side edge of the trenching disc 103 , and the rotation amplitude of the inner scraper 7 during the operation is proportional to the protruding length of the oblique blade section 701 .

[0040] The tension spring 801 provides tension to rotate the inner scraper 7 until the force-applying section 703 contacts the corresponding limiting post 602 , and when the force-applying section 703 contacts the corresponding limiting post 602 , the inner scraper 7 is at an initial angle.

[0041] Specifically, in order to enhance the effect of the scraper 7 inside the disc in scraping off mud and cutting off roots, the beveled blade section 701 of the scraper 7 inside the disc is designed to be a cutting-in type for scraping mud. At the initial angle, the beveled blade section 701 protrudes the inner wheel surface of the ditching disc 103 to the greatest extent; when the resistance exceeds the limit, the scraper rotates around the connecting shaft 601, and the beveled blade section 701 retracts toward the inner wheel surface of the ditching disc 103 to avoid hard objects, and the tension spring 801 automatically pulls it back to the initial position in contact with the limit column 602, realizing the integration of self-protection and reset.

[0042] In actual use, this device mainly includes: The two inner scrapers 7 are used to scrape away the dirt from the inner sides of the two trenching discs 103: during the rolling process of the trenching discs 103, dirt will adhere to the outer wheel surfaces of the two trenching discs 103, and as the trenching discs 103 rotate, the adhered dirt will come into contact with the two inner scrapers 7 through the oblique blade sections 701. The two inner scrapers 7 will cut off and peel off the dirt through the oblique blade sections 701, and use the rotational inertia of the disc body to throw the broken dirt away along the inclined surface, ensuring that the disc surface is continuously clean.

[0043] During the scraping process, the specific shape of the two disc scrapers 7 changes in the process of scraping the soil: when the disc scraper 7 is subjected to low resistance, the disc scraper 7 maintains the initial angle to maximize the scraping depth; when encountering gravel or root entanglement, the disc scraper 7 is subjected to increased force and rotates on the connecting shaft 601. At this time, the front end bevel blade section 701 of the disc scraper 7 retracts toward the wheel surface of the trenching disc 103, the protruding length of the bevel blade section 701 is reduced, and the angle with the wheel surface of the trenching disc 103 is increased to reduce the pressure and avoid structural damage.

[0044] The specific way in which the driver 2 controls the transmission of the transmission rod 5 through the single crankshaft assembly 4 is as follows: the driver 2 drives the single crankshaft assembly 4 to rotate as a whole through the action of the double chain and the transmission sleeve 405, and converts the circular motion into the reciprocating swing of the tail of the trenching shovel 3 through the eccentric shaft 404, while driving the transmission rod 5 to perform periodic push-pull motion.

[0045] The specific way in which the slider 8 is controlled to rise and fall through the force transmission member 104 during the transmission process of the transmission rod 5 is as follows: when the transmission rod 5 is pushed and pulled, the slider 1042 of the force transmission member 104 slides back and forth in the slide tube 1041, so that the slider 1042 pulls the connecting rope 1043 to apply a dynamic pulling force to the top of the slider 8. Since the slider 8 always applies elastic pulling force to the two inner scrapers 7 of the two disks through the two tension springs 801, under normal circumstances, the slider 8 is at the lowest position on the fixed frame 6. When the dynamic pulling force applied by 1043 to the top of the slider 8 is greater than the downward pulling force exerted on the slider 8, the slider 8 will move up on the fixed frame 6. When the dynamic pulling force applied by 1043 to the top of the slider 8 is less than the downward pulling force exerted on the slider 8, the slider 8 will move down on the fixed frame 6; the lifting amplitude of the slider 8 is synchronized with the action cycle of the trenching shovel 3 to ensure dynamic adjustment of the tension of the tension spring 801.

[0046] The lifting of the slider 8 is associated with two tension springs 801 that control the resetting of the two scrapers 7 in the disk: when the slider 8 is at the lowest position, the tension spring 801 is relaxed, allowing the scrapers 7 in the disk to rotate under the thrust of the mud to avoid obstacles and unload force; and when the slider 8 moves upward, the tension spring 801 is gradually tightened, gradually increasing the tension that resets the scrapers 7 in the disk to the initial angle, ensuring the real-time mud scraping effect of the scrapers 7 in the disk, and forming a closed-loop reset control.

[0047] Although the present invention has been described in detail above using general descriptions and specific embodiments, it will be apparent to those skilled in the art that modifications and improvements may be made thereto. Therefore, such modifications and improvements, without departing from the spirit of the present invention, are intended to be within the scope of protection claimed herein.

Claims

1. A tea garden trenching machine with dynamic cleaning inside the disc, characterized in that: have: Rack (10); A ditching wheel disc (1), the ditching wheel disc (1) being arranged on the frame (10) and being used for moving in the ditch, the ditching wheel disc (1) comprising a connecting block (101) fixedly connected to the frame (10), a connecting disc (102) being fixedly connected to the bottom of the connecting block (101), and ditching discs (103) for contacting one side of the ditch being rotatably connected to both sides of the connecting disc (102); A driver (2) fixedly mounted on the frame (10); A trenching shovel (3), wherein the driver (2) is connected to the tail of the trenching shovel (3) via a single crankshaft assembly (4), and the scraper (3) inside the trenching shovel disc is connected to the trenching wheel disc (1) via a transmission rod (5). The tail of the trenching shovel (3) performs a circular motion around the rotation axis of the single crankshaft assembly (4) under the power of the driver (2) and performs repeated shoveling actions under the limiting action of the transmission rod (5); A fixing frame (6) is mounted on the connecting block (102), and both sides of the fixing frame (6) are rotatably connected to inner scrapers (7), the two inner scrapers (7) being close to the inner side surfaces of the two ditching discs (103), and the distances between the two inner scrapers (7) and the corresponding ditching discs (103) are set so that the inner scrapers (7) can scrape away the mud on the inner side surfaces of the ditching discs (103); A slider (8) is slidably connected to the fixing frame (6), the front ends of the two inner scrapers (7) protrude from the wheel surface of the ditching disc (103), and the inner ends are connected to the slider (8) via a tension spring (801), and a force transmission member (104) for connecting to the transmission rod (5) is provided on the connecting block (101), and the force transmission member (104) is in transmission connection with the slider (8); During the transmission process, the transmission rod (5) controls the periodic lifting and lowering of the slider (8) through the force transmission member (104), so as to periodically apply different amounts of tension to the inner ends of the two inner scrapers (7) through the two tension springs (801), so as to periodically change the interaction force between the outer ends of the inner scrapers (7) and the soil on the inner side surface of the corresponding ditching plate (103), so as to allow the inner scrapers (7) to move around their rotation points.

2. A tea garden trenching machine with dynamic cleaning in the disc according to claim 1, characterized in that: The transmission sleeve (8) is slid on the fixing frame (6) to adjust the longitudinal distance between the two inner-disk scrapers (7), and the two inner-disk scrapers (7) are always located below the transmission sleeve (8).

3. A tea garden trenching machine with dynamic cleaning in the disc according to claim 1, characterized in that: The force transmission member (104) comprises a sliding tube (1041) fixedly connected to the connecting block (101), a slider (1042) being slidably connected to the sliding tube (1041), one end of the transmission rod (5) being rotatably connected to the slider (1042), a connecting rope (1043) being provided on one side of the slider (1042) being connected to the top end of the slider (8), and when the slider (1042) slides in the sliding tube (1041), the slider (8) is controlled to rise and fall by the connecting rope (1043), and a slot (1044) is provided on the end of the sliding tube (1041) close to the transmission rod (5).

4. A tea garden trenching machine with dynamic cleaning in the disc according to claim 3, characterized in that: The trenching shovel (3) performs repeated earth-shoveling actions, and one end of the transmission rod (5) performs periodic stretching actions in the force transmission member (104). During the transmission process, the transmission frame (5) applies dynamic tensions of different magnitudes to the two tension springs (801) through the force transmission member (104) and the slider (8).

5. The tea garden trenching machine with dynamic cleaning in the disc according to claim 1, characterized in that: The slider (8) at any height position can provide tension to the two disk scrapers (7) respectively through the two tension springs (801), and the height of the slider (8) on the fixing frame (6) is proportional to the tension provided by the slider (8) to the disk scrapers (7) through the tension springs (801).

6. A tea garden trenching machine with dynamic cleaning in the disc according to claim 1, characterized in that: A connecting shaft (601) and a limiting column (602) are provided on both sides of the fixing frame (6); the two disk scrapers (7) are rotatably connected to the connecting shaft (601), and the two limiting columns (602) are located between the slider (8) and the corresponding disk scraper (7); the limiting columns (602) are used to limit the rotation range of the disk scraper (7).

7. A tea garden trenching machine with dynamic cleaning inside the disc according to claim 6, characterized in that: The disk inner scraper (7) comprises, from the outer end to the inner end, an oblique blade section (701), a plate section (702), and a force-applying section (703), the connecting shaft (601) being located in the plate section (702), and the tension spring (801) being located in the force-applying section (703).

8. A tea garden trenching machine with dynamic cleaning inside the disc according to claim 7, characterized in that: During the operation of the inner disk scraper (7), the oblique blade section (701) always protrudes from the wheel side edge of the ditching disk (103), and during the operation of the inner disk scraper (7), the rotation amplitude of the inner disk scraper (7) is proportional to the protruding length of the oblique blade section (701).

9. A tea garden trenching machine with dynamic cleaning inside the disc according to claim 8, characterized in that: The tension spring (801) provides a pulling force to make the scraper (7) inside the disk tend to rotate until the force-applying section (703) contacts the corresponding limiting column (602), and when the force-applying section (703) contacts the corresponding limiting column (602), the scraper (7) inside the disk is at an initial angle.

10. The tea garden trenching machine with dynamic cleaning inside the disc according to claim 1, characterized in that: The single crankshaft assembly (4) includes a pair of bearings (401) arranged on the frame (10), a main shaft body (402) is rotatably connected in the two bearings (401), the corresponding bearings (401) are extended from the opposite ends of the two main shaft bodies (402) and are provided with connecting pieces (403), an eccentric shaft body (404) is commonly connected between the two connecting pieces (403), a transmission sleeve (405) is fixedly sleeved on the two main shaft bodies (402), and the outer sides of the two transmission sleeves (405) are transmission-connected to the output end of the driver (2) through a sleeve chain; The output end of the driver (2) causes the two main shaft bodies (402) to rotate in the two bearings (401) through two chains, and the central axes of the two bearings (401) and the two main shaft bodies (402) coincide with each other.

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