Farmland rotary cultivator with adjustable rotary tillage depth

Abstract

The farmland rotary cultivator with the adjustable rotary tillage depth comprises a carrier body, the top of the carrier body is fixedly connected with an awning, the top of the carrier body is fixedly connected with a driver seat, the side wall of the carrier body is rotationally connected with a shock absorption mechanism, and the side wall of the shock absorption mechanism is fixedly connected with a maintenance mechanism. And a rotary tillage mechanism is fixedly connected to one side of the carrier body. The invention relates to the technical field of farmland rotary cultivators. When the driving wheels rotate to drive the carrier body to move, damping can be carried out when the equipment moves to a severe terrain through cooperation of first fixing blocks, first telescopic round rods, damping springs, extrusion discs, damping cylinders, first connecting blocks, transmission round rods and the driving wheels, and the comfort degree of a worker driving the equipment is improved; and meanwhile, the carrier body can be always kept relatively horizontal when moving to a severe terrain. Therefore, the rotary tillage blades can plough the land on the same horizontal line, and the situation that the depths of the land ploughed by the rotary tillage blades are uneven is avoided.

Description

Technical Field

[0001] The invention relates to the technical field of farmland rotary tillers, in particular to a farmland rotary tiller with adjustable tillage depth. Background Art

[0002] Rotary tillers are tilling machines that work with tractors to complete ploughing and harrowing operations. They are widely used because of their strong soil crushing ability and flat surface after ploughing. They can also cut up the root stubble buried below the surface, making it easier for the seeder to operate and providing a good seed bed for later sowing. Rotary tillers have the functions of breaking up the plow bottom layer, restoring the soil tillage layer structure, improving the soil's ability to store water and retain moisture, eliminating some weeds, reducing pests and diseases, leveling the surface, and improving the standard of agricultural mechanization operations.

[0003] At present, when a rotary tiller is plowing uneven terrain, the tilling blades plow the land to different depths, resulting in poor plowing effect of the equipment. At the same time, when the rotary tiller is plowing the land, plant roots in the land may be entangled on the rotary tiller blades, requiring staff to manually remove them.

[0004] To this end, the present invention provides a farmland rotary tiller with adjustable rotary tillage depth to solve the above problems. Summary of the invention

[0005] In view of the deficiencies in the prior art, the present invention provides a farmland rotary tiller with adjustable tillage depth, which solves the above problems.

[0006] To achieve the above objectives, the present invention is implemented through the following technical solutions: a rotary tiller with adjustable tillage depth, comprising a carrier body, a sunshade fixedly connected to the top of the carrier body, a driver's seat fixedly connected to the top of the carrier body, a shock-absorbing mechanism rotatably connected to the side wall of the carrier body, a maintenance mechanism fixedly connected to the side wall of the shock-absorbing mechanism, a rotary tillage mechanism fixedly connected to one side of the carrier body, an inner wall of the rotary tillage mechanism fixedly connected to the side wall of the shock-absorbing mechanism, and a top of the rotary tillage mechanism movably connected to the bottom of the maintenance mechanism; The shock-absorbing mechanism comprises a first fixed block, the side wall of the carrier body is fixedly connected to one side of the first fixed block, the bottom of the first fixed block is fixedly connected to an extrusion disc, the side wall of the extrusion disc is slidably connected to a damping cylinder, the bottom of the damping cylinder is fixedly connected to a first connecting block, the inner wall of the first connecting block is rotatably connected to a transmission round rod, and the side wall of the transmission round rod is fixedly connected to a driving wheel; The rotary tillage mechanism comprises a first transmission gear, the inner wall of the first transmission gear is fixedly connected to the side wall of the transmission round rod, the side wall of the first transmission gear is rotatably connected to a telescopic belt, the inner wall of the telescopic belt is fixedly connected to a second transmission gear, the inner wall of the second transmission gear is fixedly connected to a rotating round rod, and the side wall of the rotating round rod is fixedly connected to a rotary tillage blade; The side wall of the first fixed block is fixedly connected with a fixed vertical plate, a slide rail groove is opened in the fixed vertical plate, an electric slide rail is fixedly connected to the inner wall of the slide rail groove, the electric slide rail is slidably connected to a connecting round rod through an electronic slider, and a concave scraper is fixedly connected to one side of the connecting round rod.

[0007] Preferably, the shock-absorbing mechanism further comprises a shock-absorbing spring, the top of the shock-absorbing spring is fixedly connected to the bottom of the first fixing block, and the bottom of the first fixing block is fixedly connected to a first telescopic round rod.

[0008] Preferably, the bottom of the shock absorbing spring is fixedly connected to the top of the damping cylinder, the bottom of the first telescopic round rod is fixedly connected to the top of the damping cylinder, and the other side of the transmission round rod is rotatably connected to the side wall of the carrier body.

[0009] Preferably: the side wall of the carrier body is fixedly connected with a connecting cross plate, a sliding groove is opened in the connecting cross plate, a fixed hook is fixedly connected to the inner wall of the sliding groove, a second fixed block is fixedly connected to the bottom of the connecting cross plate, a second telescopic round rod is fixedly connected to the bottom of the second fixed block, a limiting spring is fixedly connected to the bottom of the second fixed block, a second telescopic round rod is fixedly connected to the bottom of the second connecting block, one side of the second fixed block is fixedly connected to an electric rotating rod, a rotating ring is fixedly connected to the side wall of the electric rotating rod, and a scraping hook is fixedly connected to the side wall of the rotating ring.

[0010] Preferably: the inner wall of the scraper hook is movably connected to the side wall of the fixed hook, the side wall of the scraper hook is movably connected to the inner wall of the sliding groove, the inner wall of the scraper hook is movably connected to the side wall of the rotary tillage blade, the inner wall of the second connecting block is rotatably connected to the side wall of the rotating round rod, and the bottom of the limit spring is fixedly connected to the top of the second connecting block.

[0011] Preferably: the maintenance mechanism also includes an oil storage cylinder, the top of the oil storage cylinder is fixedly connected to the bottom of the fixed vertical plate, the bottom of the fixed vertical plate is connected to an oil dripping pipe, the oil dripping pipe is provided with a solenoid valve, the bottom of the fixed vertical plate is fixedly connected to an electric push rod, and the bottom of the electric push rod is fixedly connected to a soft cleaning brush.

[0012] Preferably, the bottom of the cleaning soft brush is movably connected to the side wall of the telescopic belt, the inner wall of the concave scraper is movably connected to the side wall of the driving wheel, and the side wall of the concave scraper is slidably connected to the inner wall of the slide rail groove.

[0013] The present invention provides a farmland rotary tiller with adjustable tillage depth. Compared with the prior art, it has the following beneficial effects: (1) When the driving wheel rotates to drive the vehicle body to move, the first fixed block, the first telescopic round rod, the shock absorbing spring, the extrusion disc, the damping cylinder, the first connecting block, the transmission round rod and the driving wheel can be used to reduce shock when the equipment moves to a harsh terrain, thereby improving the comfort of the staff driving the equipment, and at the same time, the vehicle body can always remain relatively horizontal when it moves to a harsh terrain. The rotary tillage blades can plow the land at the same horizontal line, avoiding uneven plowing depths of the rotary tillage blades.

[0014] (2) When the driving wheel drives the rotary tiller blade to rotate and plow the land through the transmission round rod, the first transmission gear, the telescopic belt, the second transmission gear and the rotating round rod, the garbage attached to the side wall of the rotary tiller blade can be cleaned through the cooperation of the second fixed block, the second telescopic round rod, the limit spring, the second connecting block, the electric rotating rod, the rotating ring, the fixed hook and the scraping hook, so as to avoid the damage of the equipment caused by the plant roots attached to the side wall of the rotary tiller blade, and at the same time, avoid the rotary tiller blade from touching the stone and colliding with it hard during operation, thereby extending the service life of the rotary tiller blade.

[0015] (3) When the driving wheel of the rotary tiller with adjustable tillage depth rotates, the side wall of the driving wheel can be cleaned by the cooperation of the electric slide rail, the connecting round rod, the concave scraper, the oil storage cylinder, the oil dripping pipe, the electric push rod and the cleaning soft brush, thereby improving the grip of the driving wheel when it moves. At the same time, the telescopic belt, the first transmission gear and the second transmission gear can be maintained to prevent them from being blocked and damaged by stones and impurities. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a structural schematic diagram of a farmland rotary tiller with adjustable rotary tillage depth according to the present invention; Figure 2 It is a structural schematic diagram of the shock-absorbing mechanism of the present invention; Figure 3 It is a structural schematic diagram of the rotary tillage mechanism of the present invention; Figure 4 It is a schematic diagram of the position structure of the rotating ring and the scraping hook of the present invention; Figure 5 It is a structural schematic diagram of the maintenance mechanism of the present invention.

[0017] In the figure: 1, vehicle body; 2, sunshade; 3, driver's seat; 4, shock-absorbing mechanism; 5, rotary tillage mechanism; 6, maintenance mechanism; 40, first fixed block; 41, first telescopic round rod; 42, shock-absorbing spring; 43, extrusion disc; 44, damping cylinder; 45, first connecting block; 46, transmission round rod; 47, driving wheel; 50, first transmission gear; 501, telescopic belt; 502, second transmission gear; 51, connecting horizontal plate; 511, sliding groove; 512, fixed Fixed hook; 52, second fixed block; 521, second telescopic round rod; 522, limit spring; 53, second connecting block; 54, rotating round rod; 55, rotary tillage blade; 56, electric rotating rod; 57, rotating ring; 58, scraping hook; 60, fixed vertical plate; 61, slide rail groove; 62, electric slide rail; 63, connecting round rod; 64, concave scraper; 65, oil storage cylinder; 66, oil drip pipe; 67, solenoid valve; 68, electric push rod; 69, cleaning soft brush. DETAILED DESCRIPTION

[0018] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0019] Embodiment 1: See also Figure 1-Figure 2 A rotary tiller with adjustable tillage depth, comprising a carrier body 1, a sunshade 2 fixedly connected to the top of the carrier body 1, a driver's seat 3 fixedly connected to the top of the carrier body 1, a shock-absorbing mechanism 4 rotatably connected to the side wall of the carrier body 1, a maintenance mechanism 6 fixedly connected to the side wall of the shock-absorbing mechanism 4, a rotary tillage mechanism 5 fixedly connected to one side of the carrier body 1, an inner wall of the rotary tillage mechanism 5 fixedly connected to the side wall of the shock-absorbing mechanism 4, and a top of the rotary tillage mechanism 5 movably connected to the bottom of the maintenance mechanism 6; The shock-absorbing mechanism 4 includes a first fixed block 40, a side wall of the carrier body 1 is fixedly connected to one side of the first fixed block 40, a squeezing disc 43 is fixedly connected to the bottom of the first fixed block 40, a damping cylinder 44 is slidably connected to the side wall of the squeezing disc 43, a first connecting block 45 is fixedly connected to the bottom of the damping cylinder 44, a transmission round rod 46 is rotatably connected to the inner wall of the first connecting block 45, and a driving wheel 47 is fixedly connected to the side wall of the transmission round rod 46; The rotary tillage mechanism 5 includes a first transmission gear 50, the inner wall of the first transmission gear 50 is fixedly connected to the side wall of the transmission round rod 46, the side wall of the first transmission gear 50 is rotatably connected to a telescopic belt 501, the inner wall of the telescopic belt 501 is fixedly connected to a second transmission gear 502, the inner wall of the second transmission gear 502 is fixedly connected to a rotating round rod 54, and the side wall of the rotating round rod 54 is fixedly connected to a rotary tillage blade 55; A fixed vertical plate 60 is fixedly connected to the side wall of the first fixed block 40, a slide rail groove 61 is opened in the fixed vertical plate 60, an electric slide rail 62 is fixedly connected to the inner wall of the slide rail groove 61, the electric slide rail 62 is slidably connected to a connecting rod 63 through an electronic slider, and a concave scraper 64 is fixedly connected to one side of the connecting rod 63; The shock absorbing mechanism 4 further includes a shock absorbing spring 42, the top of the shock absorbing spring 42 is fixedly connected to the bottom of the first fixed block 40, the bottom of the first fixed block 40 is fixedly connected to the first telescopic round rod 41, the bottom of the shock absorbing spring 42 is fixedly connected to the top of the damping cylinder 44, the bottom of the first telescopic round rod 41 is fixedly connected to the top of the damping cylinder 44, and the other side of the transmission round rod 46 is rotatably connected to the side wall of the carrier body 1; It should be noted that the staff enters the vehicle body 1 and sits on the driver's seat 3 to start the vehicle. The vehicle body 1 drives the driving wheel 47 to rotate through the transmission rod 46 to drive the equipment to move. When the driving wheel 47 passes over an uneven ground, the driving wheel 47 drives the damping cylinder 44 to rise through the transmission rod 46 and the first connecting block 45, so that the equipment can remain relatively level when moving on any terrain. The cooperation between the extrusion disc 43 and the damping cylinder 44 prevents the damping cylinder 44 from rising too quickly and hitting the bottom of the first fixed block 40, causing damage to the equipment. The cooperation between the shock-absorbing spring 42 and the first telescopic rod 41 can reduce the shock of the vehicle body 1 when it is moving, thereby improving the comfort of the staff when driving the equipment.

[0020] Embodiment 2: See also Figure 3-Figure 4 A rotary tiller with adjustable tillage depth, wherein a connecting horizontal plate 51 is fixedly connected to the side wall of a carrier body 1, a sliding groove 511 is provided in the connecting horizontal plate 51, a fixing hook 512 is fixedly connected to the inner wall of the sliding groove 511, a second fixing block 52 is fixedly connected to the bottom of the connecting horizontal plate 51, a second telescopic round rod 521 is fixedly connected to the bottom of the second fixing block 52, a limiting spring 522 is fixedly connected to the bottom of the second telescopic round rod 521, a second connecting block 53 is fixedly connected to the bottom of the second fixing block 53, and a second fixing block 53 is fixedly connected to the bottom of the second telescopic round rod 53. One side is fixedly connected with an electric rotating rod 56, a rotating ring 57 is fixedly connected with the side wall of the electric rotating rod 56, a scraping hook 58 is fixedly connected with the side wall of the rotating ring 57, the inner wall of the scraping hook 58 is movably connected with the side wall of the fixed hook 512, the side wall of the scraping hook 58 is movably connected with the inner wall of the sliding groove 511, the inner wall of the scraping hook 58 is movably connected with the side wall of the rotary tillage blade 55, the inner wall of the second connecting block 53 is rotatably connected with the side wall of the rotating round rod 54, and the bottom of the limit spring 522 is fixedly connected with the top of the second connecting block 53; It should be noted that when the driving wheel 47 rotates, the driving wheel 47 drives the rotary tillage blade 55 to rotate and till the land through the first transmission gear 50, the telescopic belt 501, the second transmission gear 502 and the rotating rod 54. The cooperation between the second telescopic rod 521, the limit spring 522 and the second connecting block 53 prevents the rotary tillage blade 55 from touching stones during rotary tillage and being damaged by forced impact. When the rotary tillage blade 55 is plowing the land, the electric rotating rod 56 is started, and the electric rotating rod 56 drives the scraper hook 58 to rotate through the rotating ring 57. When the scraper hook 58 rotates, the soil on the side wall of the rotary tillage blade 55 is scraped off to prevent the side wall of the rotary tillage blade 55 from being covered with soil and affecting its plowing efficiency. The plant roots attached to the side wall of the rotary tillage blade 55 are hooked off through the hook on the top of the scraper hook 58 to prevent them from being entangled in the side wall of the rotating round rod 54 and causing damage to it. When the scraper hook 58 rotates to the inside of the sliding groove 511, the plant roots hooked off by the scraper hook 58 can be collected through the setting of the fixed hook 512 to prevent too many plant roots from being hooked off on the surface of the scraper hook 58 and affecting its cleaning efficiency.

[0021] Embodiment three: See also Figure 5 A rotary tiller with adjustable tillage depth, the maintenance mechanism 6 also includes an oil storage cylinder 65, the top of the oil storage cylinder 65 is fixedly connected to the bottom of the fixed vertical plate 60, the bottom of the fixed vertical plate 60 is connected to an oil dripping pipe 66, the oil dripping pipe 66 is provided with a solenoid valve 67, the bottom of the fixed vertical plate 60 is fixedly connected to an electric push rod 68, the bottom of the electric push rod 68 is fixedly connected to a cleaning soft brush 69, the bottom of the cleaning soft brush 69 is movably connected to the side wall of the telescopic belt 501, the inner wall of the concave scraper 64 is movably connected to the side wall of the driving wheel 47, and the side wall of the concave scraper 64 is slidably connected to the inner wall of the slide rail groove 61; It should be noted that when the driving wheel 47 moves, too much mud will adhere to the surface, affecting its grip. The electric slide rail 62 is started, and the electric slide rail 62 drives the concave scraper 64 to move to the side wall of the driving wheel 47 through the connecting round rod 63 to scrape off the mud adhered to the side wall of the driving wheel 47. The electric push rod 68 is started, and the electric push rod 68 drives the cleaning soft brush 69 to move to the top of the telescopic belt 501 to clean the side wall of the telescopic belt 501 to avoid excessive impurities adhering to the surface of the telescopic belt 501 and affecting the rotation of the telescopic belt 501. The solenoid valve 67 is opened, and the lubricating oil inside the oil storage cylinder 65 drips to the side wall of the telescopic belt 501 through the oil dripping tube 66 to lubricate it, thereby improving the transmission efficiency of the telescopic belt 501.

[0022] Meanwhile, the contents not described in detail in this specification belong to the prior art known to those skilled in the art.

[0023] During operation, the staff enters the vehicle body 1 and sits on the driver's seat 3 to start the vehicle. The vehicle body 1 drives the driving wheel 47 to rotate through the transmission round rod 46 to drive the equipment to move. When the driving wheel 47 passes over an uneven ground, the driving wheel 47 drives the damping cylinder 44 to rise through the transmission round rod 46 and the first connecting block 45, so that the equipment can remain relatively horizontal on any terrain. The cooperation between the extrusion disc 43 and the damping cylinder 44 prevents the damping cylinder 44 from rising too fast and hitting the bottom of the first fixed block 40, causing damage to the equipment. The cooperation between the shock-absorbing spring 42 and the first telescopic round rod 41 can reduce the shock of the vehicle body 1 when it is moving, thereby improving the comfort of the staff driving the equipment. When the driving wheel 47 rotates, the driving wheel 47 drives the rotary tillage blade 55 to rotate and till the land through the first transmission gear 50, the telescopic belt 501, the second transmission gear 502 and the rotating round rod 54. The cooperation between the second telescopic round rod 521, the limit spring 522 and the second connecting block 53 prevents the rotary tillage blade 55 from touching stones during rotary tillage and being damaged by forced impact. When the rotary tillage blade 55 is plowing the land, the electric rotating rod 56 is started, and the electric rotating rod 56 drives the scraper hook 58 to rotate through the rotating ring 57. When the hook 58 rotates, the soil on the side wall of the rotary tillage blade 55 is scraped off to prevent the side wall of the rotary tillage blade 55 from being covered with soil and affecting its plowing efficiency. The plant roots attached to the side wall of the rotary tillage blade 55 are hooked off by the hook at the top of the scraping hook 58 to prevent them from being wound around the side wall of the rotating round rod 54 and causing damage to it. When the scraping hook 58 rotates to the inside of the sliding groove 511, the plant roots hooked off by the scraping hook 58 can be collected by the setting of the fixed hook 512 to prevent the scraping hook 58 from hooking off too many plant roots on the surface and affecting its cleaning efficiency. When the driving wheel 47 moves, too much mud will adhere to the surface, affecting its grip. The electric slide rail 62 is started, and the electric slide rail 62 drives the concave scraper 64 to move to the side wall of the driving wheel 47 through the connecting round rod 63 to scrape off the mud adhered to the side wall of the driving wheel 47. The electric push rod 68 is started, and the electric push rod 68 drives the cleaning soft brush 69 to move to the top of the telescopic belt 501 to clean the side wall of the telescopic belt 501 to prevent excessive impurities from adhering to the surface of the telescopic belt 501 and affecting the rotation of the telescopic belt 501. The solenoid valve 67 is opened, and the lubricating oil inside the oil storage cylinder 65 drips to the side wall of the telescopic belt 501 through the oil dripping pipe 66 to lubricate it, thereby improving the transmission efficiency of the telescopic belt 501.

[0024] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0025] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A rotary tiller with adjustable tillage depth, comprising a carrier body (1), characterized in that: The top of the carrier body (1) is fixedly connected to a sunshade (2), the top of the carrier body (1) is fixedly connected to a driver's seat (3), the side wall of the carrier body (1) is rotatably connected to a shock-absorbing mechanism (4), the side wall of the shock-absorbing mechanism (4) is fixedly connected to a maintenance mechanism (6), one side of the carrier body (1) is fixedly connected to a rotary tillage mechanism (5), the inner wall of the rotary tillage mechanism (5) is fixedly connected to the side wall of the shock-absorbing mechanism (4), and the top of the rotary tillage mechanism (5) is movably connected to the bottom of the maintenance mechanism (6); The side wall of the carrier body (1) is fixedly connected to a connecting transverse plate (51), a sliding groove (511) is provided in the connecting transverse plate (51), and a fixing hook (512) is fixedly connected to the inner wall of the sliding groove (511); a second fixing block (52) is fixedly connected to the bottom of the connecting transverse plate (51), a second telescopic round rod (521) is fixedly connected to the bottom of the second fixing block (52), a limiting spring (522) is fixedly connected to the bottom of the second fixing block (52), and a second connecting block (53) is fixedly connected to the bottom of the second telescopic round rod (521); one side of the second fixing block (52) is fixedly connected to an electric rotating rod (56), a rotating ring (57) is fixedly connected to the side wall of the electric rotating rod (56), and a scraping hook (58) is fixedly connected to the side wall of the rotating ring (57); The shock-absorbing mechanism (4) comprises a first fixed block (40), the side wall of the carrier body (1) is fixedly connected to one side of the first fixed block (40), the bottom of the first fixed block (40) is fixedly connected to an extrusion disc (43), the side wall of the extrusion disc (43) is slidably connected to a damping cylinder (44), the bottom of the damping cylinder (44) is fixedly connected to a first connecting block (45), the inner wall of the first connecting block (45) is rotatably connected to a transmission rod (46), and the side wall of the transmission rod (46) is fixedly connected to a driving wheel (47); The rotary tillage mechanism (5) comprises a first transmission gear (50), the inner wall of the first transmission gear (50) being fixedly connected to the side wall of the transmission round rod (46), the side wall of the first transmission gear (50) being rotatably connected to a telescopic belt (501), the inner wall of the telescopic belt (501) being fixedly connected to a second transmission gear (502), the inner wall of the second transmission gear (502) being fixedly connected to a rotating round rod (54), and the side wall of the rotating round rod (54) being fixedly connected to a rotary tillage blade (55); A fixed vertical plate (60) is fixedly connected to the side wall of the first fixed block (40), a slide rail groove (61) is provided in the fixed vertical plate (60), an electric slide rail (62) is fixedly connected to the inner wall of the slide rail groove (61), the electric slide rail (62) is slidably connected to a connecting round rod (63) via an electronic slider, and a concave scraper (64) is fixedly connected to one side of the connecting round rod (63).

2. The rotary tiller with adjustable tillage depth according to claim 1, characterized in that: The shock-absorbing mechanism (4) further comprises a shock-absorbing spring (42), the top of the shock-absorbing spring (42) being fixedly connected to the bottom of the first fixing block (40), and the bottom of the first fixing block (40) being fixedly connected to a first telescopic round rod (41).

3. The rotary tiller with adjustable tillage depth according to claim 2, characterized in that: The bottom of the shock absorbing spring (42) is fixedly connected to the top of the damping cylinder (44), the bottom of the first telescopic round rod (41) is fixedly connected to the top of the damping cylinder (44), and the other side of the transmission round rod (46) is rotatably connected to the side wall of the carrier body (1).

4. The rotary tiller with adjustable tillage depth according to claim 1, characterized in that: The inner wall of the scraping hook (58) is movably connected to the side wall of the fixed hook (512), the side wall of the scraping hook (58) is movably connected to the inner wall of the sliding groove (511), the inner wall of the scraping hook (58) is movably connected to the side wall of the rotary tillage blade (55), the inner wall of the second connecting block (53) is rotatably connected to the side wall of the rotating round rod (54), and the bottom of the limit spring (522) is fixedly connected to the top of the second connecting block (53).

5. The rotary tiller with adjustable tillage depth according to claim 1, characterized in that: The maintenance mechanism (6) further comprises an oil storage cylinder (65), the top of the oil storage cylinder (65) being fixedly connected to the bottom of the fixed vertical plate (60), the bottom of the fixed vertical plate (60) being connected to an oil dripping pipe (66), the oil dripping pipe (66) being provided with a solenoid valve (67), the bottom of the fixed vertical plate (60) being fixedly connected to an electric push rod (68), the bottom of the electric push rod (68) being fixedly connected to a soft cleaning brush (69).

6. The rotary tiller with adjustable tillage depth according to claim 5, characterized in that: The bottom of the cleaning soft brush (69) is movably connected to the side wall of the telescopic belt (501), the inner wall of the concave scraper (64) is movably connected to the side wall of the driving wheel (47), and the side wall of the concave scraper (64) is slidably connected to the inner wall of the slide rail groove (61).

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