Dustproof device for rotary cultivator

Abstract

The dustproof device for the rotary cultivator particularly relates to the technical field of dust prevention of the rotary cultivator and comprises a device shell, the left end and the right end of the inner side of the device shell are jointly and rotationally connected with a rotary tillage component, and a transmission driving component is arranged at the top end of the device shell. The transmission driving part is fixedly connected to the right end of the rotary tillage part through the right end of the device shell, a driving motor is arranged at the end, away from the rotary tillage part, of the transmission driving part, and a humidifying and dustproof part is fixedly connected to the outer surface of the upper side of the device shell. According to the dustproof device for the rotary cultivator, dust can be effectively prevented from being generated by humidifying the dustproof component and conveying water to humidify land, the size of a water outlet can be controlled by adjusting a spiral blocking column to control the water conveying amount, an inner sleeve shaft of a coaxial reverse rotation sleeve rod structure is matched with various conical teeth in a driving assembly, and the dustproof device is convenient to use. The rotary tillage tool bits can rotate in staggered and opposite working directions and at different speeds, and adaptability and efficiency of rotary tillage operation are enhanced.

Description

Technical Field

[0001] The utility model relates to the technical field of dust prevention for rotary tillers, in particular to a dust prevention device for a rotary tiller. Background Technique

[0002] When a rotary tiller is operating, its high-speed rotating blades will stir the soil, resulting in a large amount of dust being raised. The main function of the dust prevention device is to control and block the raised dust to protect the health of operators and reduce environmental pollution. The dust prevention device for a rotary tiller is a device specially designed for a rotary tiller to reduce the raising and spreading of dust.

[0003] Chinese patent document CN212487112U discloses a dust prevention device for a rotary tiller, which includes a cover plate, a fixing block and a dust prevention arc cover. The bending arc of the dust prevention arc cover is consistent with the inner bending arc of the cover plate. Both ends of the bottom of the dust prevention arc cover are symmetrically and slidably clamped and connected with a pair of sliding connecting rods. The bottom ends of the two sliding connecting rods are jointly connected with an installation ring. The installation ring is sleeved on the outer surface of the fixing block. A plurality of bolt holes are penetrated through the installation ring, and the installation ring is fixedly connected with the bottom end surface of the cover plate through fastening bolts penetrating through the bolt holes.

[0004] Although the above device can facilitate the removal of grass clippings and dust on the inner surface of the dust prevention arc cover through the movement of the scraping piece, it can only prevent dust for itself, and cannot limit the diffusion of dust in terms of environmental protection. Under different operation requirements, it cannot prevent the generation and diffusion of dust, and the dust prevention effect is single. In addition, the rotary tillage device can only generate a force with a single direction and the same speed, and cannot till and loosen the land well, so the rotary tillage effect is low. Content of the Utility Model

[0005] The purpose of the utility model is to provide a dust prevention device for a rotary tiller to solve the problems raised in the above background technique.

[0006] To achieve the above purpose, the utility model provides the following technical solution: A dust prevention device for a rotary tiller, which includes a device housing. The left and right ends inside the device housing are jointly rotatably connected with a rotary tillage component. A transmission driving component is arranged at the top end of the device housing. The transmission driving component is fixedly connected to the right end of the rotary tillage component through the right end of the device housing. A driving motor is arranged at one end of the transmission driving component far away from the rotary tillage component. A humidifying and dust prevention component is fixedly connected to the outer surface on the upper side of the device housing.

[0007] Preferably, the rotary tillage component includes a coaxial reverse rotation sleeve rod. One end of the coaxial reverse rotation sleeve rod is rotatably connected to a support rotating head, and the outer surface of the support rotating head is fixedly connected to the inside of the device housing. Four rotary tillage cutter heads are fixedly connected to the outer surface of the coaxial reverse rotation sleeve rod. One side of the coaxial reverse rotation sleeve rod away from the support rotating head is rotatably connected to a support fixing ring, and the outer surface of the support fixing ring is fixedly connected to the inner side of the device housing. The end of the coaxial reverse rotation sleeve rod away from the support rotating head is fixedly connected to a drive assembly.

[0008] Preferably, the coaxial reverse rotation sleeve rod includes a fixed support shaft. One end of the fixed support shaft is rotatably connected to the support rotating head. A forward rotation sleeve shaft is rotatably connected to the outer surface of the fixed support shaft. A reverse rotation sleeve shaft one is rotatably connected to the outer surface of the forward rotation sleeve shaft. A reverse rotation sleeve shaft two is rotatably connected to the outer surface of the reverse rotation sleeve shaft one. The outer surface of the reverse rotation sleeve shaft two is rotatably connected to the inner side of the support fixing ring. The length of the reverse rotation sleeve shaft two is one-third of that of the reverse rotation sleeve shaft one. The length of the reverse rotation sleeve shaft one is one-half of that of the forward rotation sleeve shaft. The length of the forward rotation sleeve shaft is two-thirds of that of the fixed support shaft. The ends of the fixed support shaft, the forward rotation sleeve shaft, the reverse rotation sleeve shaft one, and the reverse rotation sleeve shaft two away from the support rotating head are all commonly connected to the left end of the drive assembly and are fixedly connected with rotating discs at the ends close to the support rotating head. The outer surfaces of the four rotating discs are respectively fixedly connected to the inner sides of the four rotary tillage cutter heads.

[0009] Preferably, the drive assembly includes a drive outer bevel gear. A drive inner bevel gear is fixedly connected to the middle of the top end of the drive outer bevel gear. An anti-rotation outer bevel gear is connected to the inner core on the side of the drive inner bevel gear close to the support fixing ring at the top end. The left end of the anti-rotation outer bevel gear is fixedly connected to the right end of the reverse rotation sleeve shaft two. A forward rotation outer bevel gear is meshingly connected to the side of the drive outer bevel gear away from the support fixing ring at the top end. The left end of the forward rotation outer bevel gear is fixedly connected to the right end of the fixed support shaft. An anti-rotation inner bevel gear is meshingly connected to the left side of the drive inner bevel gear at the top end. The left end of the anti-rotation inner bevel gear is fixedly connected to the right end of the reverse rotation sleeve shaft one. A forward rotation inner bevel gear is meshingly connected to the right side of the drive inner bevel gear at the top end. The left end of the forward rotation inner bevel gear is fixedly connected to the right end of the forward rotation sleeve shaft. The diameters of the forward rotation inner bevel gear and the anti-rotation inner bevel gear are smaller than those of the anti-rotation outer bevel gear and the forward rotation outer bevel gear. The bottom end of the drive outer bevel gear is fixedly connected to a transmission drive component.

[0010] Preferably, the humidifying and dust-proof component includes a humidifying and dust-proof baffle. The humidifying and dust-proof baffle is in a J shape. The left and right ends of the humidifying and dust-proof baffle are fixedly connected to the inner side of the device housing. A diversion assembly is fixedly connected to the top of the straight part of the humidifying and dust-proof baffle. An inlet interface is fixedly connected to the back end of the diversion assembly. A plurality of atomizing nozzles are fixedly connected below the curved part at the bottom side of the humidifying and dust-proof baffle.

[0011] Preferably, a plurality of diversion drip grooves are separately arranged on the inner straight surface of the humidifying dust shield plate, and the outward angle of the upper end of the diversion drip groove close to the diversion component is an inclined surface, and a water outlet is provided at the corresponding position of the diversion component on the upper side of the humidifying dust shield plate.

[0012] Preferably, the deflector assembly comprises a deflector box, the bottom end of which is fixedly connected to the upper side of the humidifying dust shield plate and the inner side is connected to the inside of the humidifying dust shield plate, a threaded water retaining groove is provided in the middle of the top of the deflector box, a spiral retaining column is threadedly connected to the threaded water retaining groove, a water inlet is provided at the rear side of the threaded water retaining groove, the outer side of the water inlet is fixedly connected to the front end of the water inlet interface, drain ports connected to the inside of the deflector box are provided on the left and right sides of the threaded water retaining groove, and a deflector inclined plate is fixedly connected to the inner bottom end of the deflector box.

[0013] Preferably, the spiral blocking column can fit tightly with the threaded water retaining groove to cover and block the water inlet, the guide ramp is high in the middle and low at both ends, and the upper outward angle of the end of the guide ramp away from the water inlet interface is a slope.

[0014] Compared with the prior art, the beneficial effects of the utility model are:

[0015] 1. The utility model can deliver water to humidify the land through the humidifying dust shield, guide assembly, water inlet interface and atomizing nozzle, effectively preventing dust from being generated, and can control the water delivery volume by adjusting the size of the water outlet by adjusting the spiral baffle column. Users can adjust it according to actual needs, which improves the cleanliness of the working environment, reduces the pollution of dust to the surrounding environment, and improves environmental protection.

[0016] 2. The utility model can cooperate with various bevel teeth in the drive assembly in the coaxial counter-rotating sleeve rod structure, which can realize the dislocation of the rotary tillage cutter head, the opposite working direction and the rotation at different speeds. This can make the rotary tiller more fully and evenly till the land during work, improve the looseness and quality of the land, and enhance the adaptability and efficiency of rotary tillage operations. Brief Description of the Figures

[0017] Figure 1 is a schematic diagram of the structure of the utility model,

[0018] Figure 2 is a schematic diagram of the structure of the rotary tillage component of the utility model,

[0019] Figure 3 is a schematic diagram of the coaxial counter-rotating connecting rod structure of the utility model,

[0020] Figure 4 is a schematic diagram of the structure of the humidifying and dustproof component of the utility model,

[0021] Figure 5Schematic diagram of the diversion component structure of the present utility model

[0022] Figure 6 Schematic diagram of the diversion box structure of the present utility model

[0023] In the figure: 1. Humidification and dust-proof component; 11. Diversion component; 111. Spiral retaining column; 112. Diversion box; 113. Diversion inclined plate; 12. Water inlet interface; 13. Humidification and dust-proof plate; 14. Atomizing nozzle; 2. Transmission drive component; 3. Device housing; 4. Rotary tillage component; 41. Support rotating head; 42. Rotary tillage cutter head; 43. Coaxial counter-rotating sleeve rod; 431. Rotating disk; 432. Fixed support shaft; 433. Forward rotating sleeve shaft; 434. First reverse rotating sleeve shaft; 435. Second reverse rotating sleeve shaft; 44. Support fixing ring; 45. Drive component; 451. Counter-rotating external bevel gear; 452. Counter-rotating internal bevel gear; 453. Drive internal bevel gear; 454. Drive external bevel gear; 455. Forward rotating internal bevel gear; 456. Forward rotating external bevel gear. Specific implementation manners

[0024] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0025] Please refer to Figure 1 , the present utility model provides a technical solution for a dust-proof device for a rotary tiller: A dust-proof device for a rotary tiller includes a device housing 3. The device housing 3 plays a role of protection and limitation to prevent soil and sundries from splashing. The left and right ends of the inner side of the device housing 3 are jointly rotatably connected with a rotary tillage component 4. The rotary tillage operation is performed on the land through the rotary tillage component 4. A transmission drive component 2 is arranged at the top end of the device housing 3. The transmission drive component 2 is fixedly connected to the right end of the rotary tillage component 4 through the right end of the device housing 3. A drive motor is arranged at one end of the transmission drive component 2 away from the rotary tillage component 4. The device is powered by the drive motor. The transmission drive component 2 transmits the power to the rotary tillage component 4 through the right end of the device housing 3. After obtaining the power, the rotary tillage component 4 starts to rotate. A humidification and dust-proof component 1 is fixedly connected to the outer surface on the upper side of the device housing 3, which can humidify the land and make the soil moist, thereby suppressing the raising of dust and achieving the dust-proof effect.

[0026] Please refer to Figure 2, the rotary tillage component 4 includes a coaxial counter-rotating sleeve rod 43. After obtaining power, the coaxial counter-rotating sleeve rod 43 starts to rotate. One end of the coaxial counter-rotating sleeve rod 43 is rotatably connected to a support rotating head 41. The outer surface of the support rotating head 41 is fixedly connected to the inside of the device housing 3. Four rotary tillage cutter heads 42 are fixedly connected to the outer surface of the coaxial counter-rotating sleeve rod 43. One side of the outer surface of the coaxial counter-rotating sleeve rod 43 away from the support rotating head 41 is rotatably connected to a support fixing ring 44. The outer surface of the support fixing ring 44 is fixedly connected to the inner side of the device housing 3. One end of the coaxial counter-rotating sleeve rod 43 away from the support rotating head 41 is fixedly connected to a driving assembly 45. Through the cooperation of various bevel gears in the driving assembly 45, the dislocation, opposite working directions, and different rotation speeds of the rotary tillage cutter heads 42 are realized. The support rotating head 41 and the support fixing ring 44 are respectively fixed to the inner side of the device housing 3, providing support and fixation for the coaxial counter-rotating sleeve rod 43 to ensure its stable operation.

[0027] Please refer to Figure 3 , the coaxial counter-rotating sleeve rod 43 includes a fixed support shaft 432. One end of the fixed support shaft 432 is rotatably connected to the support rotating head 41. A forward rotating sleeve shaft 433 is rotatably connected to the outer surface of the fixed support shaft 432. A first reverse rotating sleeve shaft 434 is rotatably connected to the outer surface of the forward rotating sleeve shaft 433. A second reverse rotating sleeve shaft 435 is rotatably connected to the outer surface of the first reverse rotating sleeve shaft 434. The outer surface of the second reverse rotating sleeve shaft 435 is rotatably connected to the inner side of the support fixing ring 44. The length of the second reverse rotating sleeve shaft 435 is one-third of that of the first reverse rotating sleeve shaft 434. The length of the first reverse rotating sleeve shaft 434 is one-half of that of the forward rotating sleeve shaft 433. The length of the forward rotating sleeve shaft 433 is two-thirds of that of the fixed support shaft 432. One end of the fixed support shaft 432, the forward rotating sleeve shaft 433, the first reverse rotating sleeve shaft 434, and the second reverse rotating sleeve shaft 435 away from the support rotating head 41 are all commonly connected to the left end of the driving assembly 45, and rotating discs 431 are fixedly connected to one end of each of them close to the support rotating head 41. The outer surfaces of the four rotating discs 431 are respectively fixedly connected to the inner sides of the four rotary tillage cutter heads 42.

[0028] The forward rotating sleeve shaft 433, the first reverse rotating sleeve shaft 434, and the second reverse rotating sleeve shaft 435 rotate in different directions respectively because they are in a sleeve-to-sleeve manner. The forward rotating sleeve shaft 433 rotates in the same direction as the fixed support shaft 432, while the first reverse rotating sleeve shaft 434 and the second reverse rotating sleeve shaft 435 rotate in the opposite direction to the fixed support shaft 432. Since the lengths of the respective sleeve shafts are different, they will not cause collisions between the driven rotary tillage cutter heads 42 during rotation.

[0029] Please refer to Figure 3, the driving component 45 includes a driving external bevel gear 454. In the middle of the top end of the driving external bevel gear 454, a driving internal bevel gear 453 is fixedly connected. On the inner core of the top end of the driving internal bevel gear 453, near one side of the supporting fixed ring 44, a reverse-rotation external bevel gear 451 is connected. The left end of the reverse-rotation external bevel gear 451 is fixedly connected to the right end of the reverse-rotation sleeve shaft two 435. On the side of the top end of the driving external bevel gear 454 away from the supporting fixed ring 44, a forward-rotation external bevel gear 456 is meshed and connected. The left end of the forward-rotation external bevel gear 456 is fixedly connected to the right end of the fixed support shaft 432. On the left side of the top end of the driving internal bevel gear 453, a reverse-rotation internal bevel gear 452 is meshed and connected. The left end of the reverse-rotation internal bevel gear 452 is fixedly connected to the right end of the reverse-rotation sleeve shaft one 434. On the right side of the top end of the driving internal bevel gear 453, a forward-rotation internal bevel gear 455 is meshed and connected. The left end of the forward-rotation internal bevel gear 455 is fixedly connected to the right end of the forward-rotation sleeve shaft 433. The diameters of the forward-rotation internal bevel gear 455 and the reverse-rotation internal bevel gear 452 are smaller than those of the reverse-rotation external bevel gear 451 and the forward-rotation external bevel gear 456. The bottom end of the driving external bevel gear 454 is fixedly connected to the transmission driving component 2.

[0030] The transmission driving component 2 transmits power to the driving external bevel gear 454 and the driving internal bevel gear 453. Since the reverse-rotation external bevel gear 451 and the reverse-rotation internal bevel gear 452 are on the left side of the driving internal bevel gear 453 and the driving external bevel gear 454, the rotation directions of the reverse-rotation sleeve shaft two 435 and the reverse-rotation sleeve shaft one 434 are the same. Since the forward-rotation internal bevel gear 455 and the forward-rotation external bevel gear 456 are on the right side of the driving internal bevel gear 453 and the driving external bevel gear 454, the rotation directions of the fixed support shaft 432 and the forward-rotation sleeve shaft 433 are the same. Since the reverse-rotation internal bevel gear 452 and the forward-rotation internal bevel gear 455 are jointly meshed and connected to the driving internal bevel gear 453, and the forward-rotation external bevel gear 456 and the reverse-rotation external bevel gear 451 are jointly meshed and connected to the driving external bevel gear 454, the rotational speed of the driving internal bevel gear 453 is faster than that of the driving external bevel gear 454, thus realizing the rotation of the fixed support shaft 432, the forward-rotation sleeve shaft 433, the reverse-rotation sleeve shaft one 434, and the reverse-rotation sleeve shaft two 435 in different directions and speeds, and further driving the rotary tillage cutter head 42 to perform complex rotary tillage operations.

[0031] Please refer to Figure 4 , the humidifying and dust-proof component 1 includes a humidifying dust-proof plate 13. The humidifying dust-proof plate 13 is in a J shape. The left and right ends of the humidifying dust-proof plate 13 are fixedly connected to the inner side of the device housing 3. At the top end of the straight surface part of the humidifying dust-proof plate 13, a diversion component 11 is fixedly connected. At the rear end of the diversion component 11, a water inlet interface 12 is fixedly connected. Below the bottom curved surface part of the humidifying dust-proof plate 13, a plurality of atomizing nozzles 14 are fixedly connected.

[0032] Please refer to Figure 4 , on the inner straight surface part of the humidifying dust-proof plate 13, a plurality of diversion dripping grooves are provided. The outer corner at one end of the diversion dripping groove close to the diversion component 11 is an inclined surface. At the corresponding position of the diversion component 11 on the upper side of the humidifying dust-proof plate 13, a water passing port is provided.

[0033] Water enters the diversion assembly 11 from the water inlet interface 12. The diversion assembly 11 conducts preliminary distribution and guidance of the water flow and can control the amount of water. After passing through the diversion assembly 11, the water enters the humidifying dust-proof plate 13, and through the dripping tank, the water guided in the diversion assembly 11 can be dripped onto the rotary tillage land at a certain frequency. The excess water will flow to the bottom end of the humidifying dust-proof plate 13, and the water is atomized and sprayed out through the atomizing nozzle 14, realizing the suppression of dust in the rotary tillage operation.

[0034] Please refer to Figure 5 and Figure 6 As shown in, the diversion assembly 11 includes a diversion box 112. The bottom end of the diversion box 112 is fixedly connected to the upper side of the humidifying dust-proof plate 13 and the inner side is communicated with the inside of the humidifying dust-proof plate 13. A threaded water retaining groove is opened in the middle of the top end of the diversion box 112. A spiral retaining column 111 is threadedly connected to the threaded water retaining groove. An inlet is opened at the rear side of the threaded water retaining groove. The outside of the inlet is fixedly connected to the front end of the water inlet interface 12. Waterproof openings communicating with the inside of the diversion box 112 are opened on the left and right sides of the threaded water retaining groove. A diversion inclined plate 113 is fixedly connected to the bottom end inside the diversion box 112.

[0035] Please refer to Figure 5 and Figure 6 As shown in, the spiral retaining column 111 can closely fit with the threaded water retaining groove to cover and block the inlet. The diversion inclined plate 113 is in a shape with a high middle and low ends. The outer corner at the upper end of the end of the diversion inclined plate 113 away from the water inlet interface 12 is an inclined surface.

[0036] Water flows from the water inlet interface 12 into the inlet. First, it contacts the spiral retaining column 111. Under the cooperation of the spiral retaining column 111 and the threaded water retaining groove, the inlet is intercepted. By rotating the spiral retaining column 111, the spiral retaining column 111 can be gradually separated from the threaded water retaining groove, gradually opening the water discharge port. The water can then flow into the diversion inclined plate 113 through the water discharge port, and through the inclined guidance of the diversion inclined plate 113, the water is evenly guided to the humidifying dust-proof plate 13.

[0037] Working principle:

[0038] First, start the drive motor. The power is transmitted to the transmission drive component 2, and then to the drive assembly 45 of the rotary tillage component 4, driving the outer bevel gear 454 to rotate, driving the associated forward-rotation outer bevel gear 456, reverse-rotation outer bevel gear 451, forward-rotation inner bevel gear 455, and reverse-rotation inner bevel gear 452 to operate, causing the fixed support shaft 432, forward-rotation sleeve shaft 433, reverse-rotation sleeve shaft one 434, and reverse-rotation sleeve shaft two 435 to rotate in different directions and at different speeds, driving the rotary tillage cutter head 42 to perform rotary tillage operations on the land. At the same time, water enters the diversion assembly 11 through the water inlet interface 12. In the diversion assembly 11, the water flows through the threaded water retaining groove, and the flow rate is adjusted by the spiral stop post 111, and then flows out from the waterproof port into the diversion box 112. The diversion inclined plate 113 in the diversion box 112 guides the water to evenly enter the humidifying and dust-proof plate 13. The water flows along the diversion drip groove inside the humidifying and dust-proof plate 13 and finally is atomized and sprayed out through the atomizing nozzle 14 to humidify the land during rotary tillage and suppress dust from rising.

[0039] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A dust prevention device for a rotary tiller, comprising a device housing (3), characterized in that: The left and right ends of the inner side of the device housing (3) are connected to a rotary tillage component (4) for joint rotation; a transmission drive component (2) is provided at the top of the device housing (3); the transmission drive component (2) is fixedly connected to the right end of the rotary tillage component (4) through the right end of the device housing (3); a driving motor is provided at the end of the transmission drive component (2) away from the rotary tillage component (4); and a humidifying and dustproof component (1) is fixedly connected to the upper outer surface of the device housing (3).

2. The dust prevention device for a rotary tiller according to claim 1, characterized in that: The rotary tillage component (4) comprises a coaxial reverse rotating sleeve rod (43), one end of the coaxial reverse rotating sleeve rod (43) is rotatably connected to a supporting rotating head (41), the outer surface of the supporting rotating head (41) is fixedly connected to the inside of the device housing (3), the outer surface of the coaxial reverse rotating sleeve rod (43) is fixedly connected to four rotary tillage blades (42), the side of the outer surface of the coaxial reverse rotating sleeve rod (43) away from the supporting rotating head (41) is rotatably connected to a supporting fixing ring (44), the outer surface of the supporting fixing ring (44) is fixedly connected to the inside of the device housing (3), and the end of the coaxial reverse rotating sleeve rod (43) away from the supporting rotating head (41) is fixedly connected to a driving assembly (45).

3. The dust prevention device for a rotary tiller according to claim 2, characterized in that: The coaxial reverse rotation sleeve rod (43) comprises a fixed support shaft (432), one end of which is rotatably connected to the support rotation head (41), the outer surface of the fixed support shaft (432) is rotatably connected to a forward rotation sleeve shaft (433), the outer surface of the forward rotation sleeve shaft (433) is rotatably connected to a reverse rotation sleeve shaft 1 (434), the outer surface of the reverse rotation sleeve shaft 1 (434) is rotatably connected to a reverse rotation sleeve shaft 2 (435), the outer surface of the reverse rotation sleeve shaft 2 (435) is rotatably connected to the inner side of the support fixed ring (44), and the length of the reverse rotation sleeve shaft 2 (435) is equal to that of the reverse rotation sleeve shaft 1 (434). 34), the length of the reverse rotating sleeve shaft 1 (434) is one-half of the length of the forward rotating sleeve shaft (433), and the length of the forward rotating sleeve shaft (433) is two-thirds of the length of the fixed support shaft (432); the ends of the fixed support shaft (432), the forward rotating sleeve shaft (433), the reverse rotating sleeve shaft 1 (434), and the reverse rotating sleeve shaft 2 (435) away from the supporting rotating head (41) are all commonly connected to the left end of the driving component (45), and the ends close to the supporting rotating head (41) are all fixedly connected to a rotating disk (431), and the outer surfaces of the four rotating disks (431) are respectively fixedly connected to the inner sides of the four rotary tiller heads (42).

4. The dust prevention device for a rotary tiller according to claim 3, characterized in that: The driving assembly (45) comprises a driving outer bevel gear (454), the middle part of the top end of the driving outer bevel gear (454) is fixedly connected with a driving inner bevel gear (453), the inner core of the top end of the driving inner bevel gear (453) close to the supporting fixed ring (44) is connected with a reverse-rotating outer bevel gear (451), the left end of the reverse-rotating outer bevel gear (451) is fixedly connected to the right end of the reverse-rotating sleeve shaft (435), the top end of the driving outer bevel gear (454) away from the supporting fixed ring (44) is meshedly connected with a forward-rotating outer bevel gear (456), the left end of the forward-rotating outer bevel gear (456) is fixedly connected to the right end of the fixed supporting shaft (432), The left side of the top end of the driving inner bevel gear (453) is meshedly connected with a reverse-rotating inner bevel gear (452), and the left end of the reverse-rotating inner bevel gear (452) is fixedly connected to the right end of the reverse-rotating sleeve shaft (434). The right side of the top end of the driving inner bevel gear (453) is meshedly connected with a forward-rotating inner bevel gear (455), and the left end of the forward-rotating inner bevel gear (455) is fixedly connected to the right end of the forward-rotating sleeve shaft (433). The diameters of the forward-rotating inner bevel gear (455) and the reverse-rotating inner bevel gear (452) are smaller than those of the reverse-rotating outer bevel gear (451) and the forward-rotating outer bevel gear (456), and the bottom end of the driving outer bevel gear (454) is fixedly connected to the transmission drive component (2).

5. The dust prevention device for a rotary tiller according to claim 1, characterized in that: The humidifying dustproof component (1) comprises a humidifying dust shield plate (13), the humidifying dust shield plate (13) is J-shaped, the left and right ends of the humidifying dust shield plate (13) are fixedly connected to the inner side of the device housing (3), the top of the straight surface of the humidifying dust shield plate (13) is fixedly connected to a guide component (11), the rear end of the guide component (11) is fixedly connected to a water inlet interface (12), and a plurality of atomizing nozzles (14) are fixedly connected below the bottom curved surface of the humidifying dust shield plate (13).

6. The dust prevention device for a rotary tiller according to claim 5, characterized in that: The inner straight surface of the humidifying dust shield plate (13) is provided with a plurality of diversion drip grooves, and the outward angle of the diversion drip groove above one end close to the diversion component (11) is an inclined surface, and a water outlet is provided at a corresponding position of the diversion component (11) on the upper side of the humidifying dust shield plate (13).

7. The dust prevention device for a rotary tiller according to claim 5, characterized in that: The flow guide assembly (11) comprises a flow guide box (112), the bottom end of the flow guide box (112) is fixedly connected to the upper side of the humidifying dust shield plate (13) and the inner side is connected to the inside of the humidifying dust shield plate (13), a threaded water retaining groove is provided in the middle of the top end of the flow guide box (112), the threaded water retaining groove is threadedly connected to a spiral retaining column (111), a water inlet is provided at the rear side of the threaded water retaining groove, the outer side of the water inlet is fixedly connected to the front end of the water inlet interface (12), waterproof openings connected to the inside of the flow guide box (112) are provided on the left and right sides of the threaded water retaining groove, and a flow guide inclined plate (113) is fixedly connected to the inner bottom end of the flow guide box (112).

8. The dust prevention device for a rotary tiller according to claim 7, characterized in that: The spiral blocking column (111) can fit tightly with the threaded water retaining groove to cover and block the water inlet, and the guide inclined plate (113) is in a shape with a high middle portion and low ends, and the upper outward angle of the end of the guide inclined plate (113) away from the water inlet interface (12) is an inclined surface.

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