Rotary tillage device convenient for ridging

Abstract

The length direction of a machine frame body is perpendicular to the advancing direction of a rotary cultivator, and a row of vertical rotary blades A and a row of vertical rotary blades B are correspondingly arranged on the side, facing the running direction of the rotary cultivator, of the bottom of the machine frame body and the side, back to the running direction of the rotary cultivator, of the bottom of the machine frame body respectively. The vertical rotary blades A and the vertical rotary blades B are arranged in a staggered mode, and the vertical rotary blades A and the adjacent vertical rotary blades B are partially overlapped in the length direction of the rack body. According to the rotary tillage device convenient for ridging, the row of vertical rotary tillage cutters A and the other row of vertical rotary tillage cutters B are arranged at the bottom of the rack body, and the driving wheel A and the driving wheel B are driven by the driving box to respectively drive the vertical rotary tillage cutters A and the vertical rotary tillage cutters B at the same time; therefore, the land covered by the rack body can be effectively subjected to rotary tillage when the rotary cultivator advances, and ridges are formed at the rotary tillage positions of the vertical rotary blades B.

Description

Technical Field

[0001] The utility model relates to the technical field of agricultural machinery, in particular to a rotary tillage device which is convenient for ridging. Background Art

[0002] Arable land is the foundation of agricultural production, and its effectiveness directly or indirectly impacts subsequent agricultural production processes and crop growth and development. Long-term no-till or shallow tillage practices can lead to the formation of a hard subsoil layer between the tillage layer and the subsoil. A thick subsoil layer can affect crop root growth, hindering water and nutrient absorption, and negatively impacting crop growth. Vertical rotary tillers enable deep loosening and deep tillage, effectively breaking up the subsoil layer, improving soil structure and deep soil properties. Deep tillage also improves soil permeability, all of which are crucial for increasing crop yields. However, deep loosening and deep tillage using a ridge-forming rotary tillage system also presents technical challenges. First, its poor soil pulverization capacity can easily lead to large clods. Second, deep tillage requires a thicker soil depth than horizontal rotary tillers, which inevitably requires higher power consumption, resulting in higher operating costs. Furthermore, ensuring effective soil pulverization requires additional power for a separate pulverization unit, further increasing power consumption. In addition, after ridge formation, it is convenient to sow along the ridges so that the plants are planted evenly, avoiding the waste of land resources caused by sparse planting density or the impact of plant growth caused by dense planting density. However, existing rotary tillers using vertical rotary blades cannot automatically form soil into ridges after rotary tillage, requiring subsequent operations to achieve this, which increases farming costs and prolongs the time required for agricultural planting. Utility Model Content

[0003] The purpose of this utility model is to overcome the shortcomings of the existing technology and provide a rotary tillage device that is convenient for ridge forming. A row of vertical rotary tillage blades A and another row of vertical rotary tillage blades B are arranged at the bottom of the frame, and the drive box drives the transmission wheel A and the transmission wheel B to simultaneously drive the vertical rotary tillage blades A and the vertical rotary tillage blades B, so that the land covered by the frame can be effectively tilled when the rotary tiller moves forward, and ridges can be formed at the positions where the vertical rotary tillage blades B are tilled.

[0004] The technical solution adopted by this utility model is:

[0005] The rotary tillage device convenient for ridging comprises a frame body with an elongated structure, the length direction of the frame body being perpendicular to the forward direction of the rotary tiller, and a row of vertical rotary tillage blades A and a row of vertical rotary tillage blades B being respectively provided on one edge of the bottom of the frame body facing the direction of travel of the rotary tiller and on the side facing away from the direction of travel of the rotary tiller, the vertical rotary tillage blades A and the vertical rotary tillage blades B being staggered with each other, and each vertical rotary tillage blade A and each vertical rotary tillage blade B being rotatably connected to the frame body, and each vertical rotary tillage blade A and each vertical rotary tillage blade B being transmission connected to a drive box provided on the frame body, the vertical rotary tillage blade A throwing soil to the outside when tilling, and the vertical rotary tillage blade B throwing soil to the inside of the vertical rotary tillage blade B when tilling, and the vertical rotary tillage blade A and the adjacent vertical rotary tillage blade B partially overlap in the length direction of the frame body.

[0006] A further improvement scheme of the present utility model is that the frame body is provided with a transmission groove with an open top, and the groove of the transmission groove is provided with a detachable and fixed cover plate, and the transmission wheel A corresponding to the vertical rotary tiller A and the transmission wheel B corresponding to the vertical rotary tiller B are rotatably connected in the transmission groove respectively, and the transmission wheel A and the transmission wheel B are respectively connected to each other in transmission, and the transmission part A at the top of the vertical rotary tiller A extends upward into the transmission groove and is fixed coaxially with the transmission wheel A, and the transmission part B at the top of the vertical rotary tiller B extends upward into the transmission groove and is fixed coaxially with the transmission wheel B, and a drive shaft is fixed coaxially to the top of one of the transmission wheels A or the transmission wheel B, and the drive shaft passes through the cover plate upward and is drive-connected to the drive box above the cover plate.

[0007] A further improvement scheme of the present utility model is that the vertical rotary tiller A includes a blade holder A for fixedly connected to the frame body, the bottom of the blade holder A is coaxially connected to a cutter shaft A and a circular cutter disc around a vertical axis, the cutter shaft A is passed through the vertical axis of the blade holder A, the transmission part A is provided at the top of the cutter shaft A passing upward through the cutter holder A, the bottom end of the cutter shaft A is provided with a soil drilling part A, the bottom edge of the circular cutter disc is evenly distributed with a plurality of downwardly arranged cutter rods A with the axis of the cutter shaft A as the center, a plurality of blades A are provided at equal intervals from bottom to top on the side of the cutter rod A facing the rotation direction, the blades A are located above the soil drilling part A, the cutter shaft A is coaxially fixed to the axis of the circular cutter disc, and the blades A throw the soil upward along their respective rotation directions.

[0008] A further improvement of the present invention is that the drilling part A is a conical structure with a top diameter larger than a bottom diameter, and a blade B is provided on the side wall edge of the drilling part A, and the blade B is arranged in a spiral ascending manner along the conical surface of the drilling part A.

[0009] A further improvement of the present invention is that the tool holder A is a circular groove A opening downward, and an axial hole A for passing the tool shaft A is provided at the axis center of the groove bottom of the circular groove A, and a bearing sleeve A is provided coaxially at the top surface of the groove bottom of the circular groove A corresponding to the hole edge position of the axial hole A, and a positioning convex ring A is provided inwardly at the connection between the axial hole A and the bearing sleeve A, and the bearing sleeve A and the tool shaft A are rotatably connected through bearings A respectively, and an annular cover A for axially fixing the bearing A is fixed at the end of the bearing sleeve A away from the tool holder A, and the circular cutter disc is rotatably connected to the inner wall of the groove wall of the circular groove A, and a positioning convex ring B is coaxially provided on the outer wall of the circular cutter disc, and the top and bottom of the positioning convex ring B are rotatably connected to the inner wall of the groove wall of the circular groove A through bearings B and bearings C respectively, and an annular cover B for axially fixing the bearing C is fixed at the groove wall of the circular groove A at the groove mouth position, and the tool rod A extends downward from the center hole of the annular cover B respectively.

[0010] A further improvement of the present invention is that the vertical rotary tiller B includes a blade holder B for being fixedly connected to the frame body, the bottom of the blade holder B is coaxially connected to a blade shaft B and an annular blade disc around a vertical axis, the blade shaft B is passed through the vertical axis of the blade holder B, the transmission part B is provided at the top of the blade holder B passing upward, the bottom end of the blade shaft B is provided with a soil drilling part B, the side wall of the blade shaft B is provided with multiple blade layers at equal intervals from bottom to top, and the blade layer includes multiple blade layers uniformly spaced with the axis of the blade shaft B as the center. The annular cutter disc is provided with a plurality of downwardly arranged cutter bars B evenly distributed on the bottom edge with the axis of the cutter shaft B as the center. A plurality of blades E are evenly spaced from bottom to top on the side of the cutter bar B facing the rotation direction. The blades E are located above the drilling part B. The cutter shaft B and the annular cutter disc are connected by a rotating transmission device, and the rotating transmission device is located at the top of the cutter bar B. When the cutter shaft B and the annular cutter disc rotate, the blades C and the blades E respectively throw the soil upward along their respective rotation directions.

[0011] A further improvement of the present invention is that the drilling part B is a conical structure with a top diameter larger than a bottom diameter, and a blade D is provided on the side wall edge of the drilling part B, and the blade D is arranged in a spiral ascending manner along the conical surface of the drilling part B.

[0012] A further improvement of the present invention is that the blade C and the blade E are respectively inclined upward along their respective rotation directions, and the angle between the blade C and the horizontal plane gradually increases along the direction from the free end of the blade C to the connection end with the knife shaft B, and the angle between the blade E and the horizontal plane gradually increases along the direction from the free end of the blade E to the connection end with the knife rod B; the blade E is inclined toward the side of the knife shaft B along the direction away from the connected knife rod B, and the blade E is inclined downward along the direction away from the connected knife rod B.

[0013] A further improvement of the present invention is that the tool holder B is a circular groove B opening downward, and an axial hole B for passing the tool shaft B is provided at the axial center of the groove bottom of the circular groove B, and a bearing sleeve B and a bearing sleeve C are respectively provided coaxially at the top surface and bottom surface of the groove bottom of the circular groove B corresponding to the hole edge position of the axial hole B, and the axial hole B is provided with a positioning convex ring C inwardly corresponding to the connection between the bearing sleeve B and the bearing sleeve C, and the bearing sleeve B and the bearing sleeve C are rotatably connected to the tool shaft B through bearings D and bearings E respectively, and an annular cover C for axially fixing the bearing D and an annular cover for axially fixing the bearing E are respectively fixed to the end of the bearing sleeve B away from the tool holder B and the end of the bearing sleeve C away from the tool holder B. D, the annular cutter disc is rotatably connected in the annular groove formed by the circular groove B and the bearing sleeve C, the inner side wall and outer side wall of the annular cutter disc are respectively coaxially provided with a positioning convex ring D and a positioning convex ring E, the top and bottom of the positioning convex ring D are respectively rotatably connected to the bearing sleeve C through the bearing F and the bearing H, the top and bottom of the positioning convex ring E are respectively rotatably connected to the groove wall of the circular groove B through the bearing G and the bearing I, the edge of the annular cover D extends outward to contact the bearing H and axially fix the bearing H, the groove wall of the circular groove B is fixed with an annular cover E for axially fixing the bearing I at the groove position, and the cutter bar B extends downward from the annular hole formed between the annular cover D and the annular cover E.

[0014] A further improvement of the present invention is that the rotation transmission device includes a sun gear fixed coaxially to the cutter shaft B, an inner ring gear fixed coaxially with the annular cutter disc through the cutter rod B, and a plurality of planetary gears evenly distributed between the sun gear and the inner ring gear with the axis of the cutter shaft B as the center. The sun gear is connected to the inner ring gear through the planetary gears, and the planetary gears are rotationally connected to the cutter holder B through the shaft.

[0015] The beneficial effects of the present invention are:

[0016] First, the rotary tillage device of the present invention is convenient for ridge forming. A row of vertical rotary tillage blades A and another row of vertical rotary tillage blades B are arranged at the bottom of the frame, and the drive box drives the transmission wheel A and the transmission wheel B to simultaneously drive the vertical rotary tillage blades A and the vertical rotary tillage blades B, so that the land covered by the frame can be effectively tilled when the rotary tiller moves forward, and ridges can be formed at the position where the vertical rotary tillage blades B are tilled.

[0017] Second, the rotary tillage device of the present invention is convenient for ridge formation. Through the drilling part A and blade B provided on the cutter shaft A of the vertical rotary tiller A and the cutter bar A and blade A provided on the circular cutter disc, the drilling part A and blade B can facilitate the rotary tiller to drill into the soil and turn over and throw up the soil. The cutter bar A and blade A can facilitate the effective cutting of the soil and throw up the soil. After being thrown up, the soil passes through the cutter bar A and blade A or passes through the vertical rotary tiller B or falls to the ground and is broken up, thereby realizing rotary tillage of the land.

[0018] Third, the rotary tillage device of the present invention is convenient for ridge formation. During the rotary tillage by the vertical rotary tiller A, the soil at the rotary tillage position is cut, turned over and thrown up, and part of the soil is thrown to the surroundings under the action of centrifugal force, and part of the soil thrown toward the vertical rotary tiller B will fall at the rotary tillage position of the vertical rotary tiller B under the action of the vertical rotary tiller B, so that in the process of the rotary tiller moving forward, gullies are formed at the rotary tillage position of the vertical rotary tiller A and ridges are formed at the rotary tillage position of the vertical rotary tiller B.

[0019] Fourth, the rotary tillage device of the present invention is convenient for ridge formation. Through the drilling part B and blades D and C provided on the cutter shaft B of the vertical rotary tiller B and the cutter bar B and blade E provided on the annular cutter disc, the drilling part B and blade D can facilitate the rotary tiller to drill into the soil and turn over and throw up the soil. The cutter bar B and blade E can facilitate the effective cutting of the soil and throw up the soil. The blade C can effectively break up the thrown soil, thereby realizing rotary tillage of the land.

[0020] Fifth, the rotary tillage device of the present invention is convenient for ridging. The blade C can not only break up the thrown soil, but also use the rotation inertia to throw the soil toward the cutter bar B and the blade E to further break up the soil and throw it inward.

[0021] Sixth, the rotary tillage device of the present invention, which is convenient for ridge formation, can not only transmit power directly to the cutter shaft B through the action of the rotating transmission device, so that the blade C and the soil drilling part B of the cutter shaft B can rotate at high speed, which is convenient for the vertical rotary tillage blade B to be inserted into the soil and the thrown soil to be effectively broken up; at the same time, it can also transmit power to the annular cutter disc, so that the cutter rod B and the blade E of the annular cutter disc can rotate at a relatively low speed and high torque, which is convenient for the cutter rod B and the blade E to have sufficient force to cut and throw the land.

[0022] Seventh, in the rotary tillage device that is convenient for ridging of soil, the cutter shaft B and the annular cutter disc are respectively connected to the cutter frame B through corresponding bearings, which not only ensures the rotation of the cutter shaft B and the annular cutter disc, but also provides effective radial and axial support for the cutter shaft B and the annular cutter disc relative to the cutter frame B, thereby increasing the maximum bearing capacity of the cutter shaft B and the annular cutter disc when working.

[0023] Eighth, the rotary tillage device of the present invention, which is convenient for ridging, provides power to the cutter shaft B through the transmission part B, and connects the cutter shaft B with the annular cutter disc through the rotating transmission device of the planetary gear structure. Therefore, there is no need to provide power to the additional soil crushing device. Only the vertical rotary tillage blade B itself needs to be powered. Not only does it not generate additional energy consumption, but it also ensures the stability of the transmission and the uniform distribution of speed and torque. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 This is a schematic cross-sectional view of the main view of this application.

[0025] Figure 2 This is a top view schematic cross-sectional view of the cover plate of this application.

[0026] Figure 3 It is an enlarged schematic diagram of the main cross-section of the vertical rotary tiller A.

[0027] Figure 4 It is an enlarged schematic diagram of the main cross-section of the vertical rotary tiller B. DETAILED DESCRIPTION

[0028] Combine Figures 1 to 4 It can be seen that the rotary tillage device for ridge forming includes a frame body 1 with a long strip structure, the length direction of the frame body 1 is perpendicular to the forward direction of the rotary tiller, and a row of vertical rotary tiller blades A2 and a row of vertical rotary tiller blades B3 are respectively provided on the side edge of the bottom of the frame body 1 facing the direction of travel of the rotary tiller and the side facing away from the direction of travel of the rotary tiller. The vertical rotary tiller blades A2 and vertical rotary tiller blades B3 are staggered with each other, and each vertical rotary tiller blade A2 and each vertical rotary tiller blade B3 are respectively rotatably connected to the frame body 1, and each vertical rotary tiller blade A2 and each vertical rotary tiller blade B3 are transmission connected to the drive box 6 provided on the frame body 1. When the vertical rotary tiller A2 is rotating, the soil is thrown to the outside, and when the vertical rotary tiller B3 is rotating, the soil is thrown to the inside of the vertical rotary tiller B3. The vertical rotary tiller blade A2 and the adjacent vertical rotary tiller blade B3 partially overlap in the length direction of the frame body 1.

[0029] The frame body 1 is provided with a transmission groove 4 with an open top, and the groove of the transmission groove 4 is provided with a detachable and fixed cover plate 5. The transmission wheel A7 corresponding to the vertical rotary tiller A2 and the transmission wheel B8 corresponding to the vertical rotary tiller B3 are rotatably connected in the transmission groove 4 respectively, and the transmission wheel A7 and the transmission wheel B8 are respectively connected to each other in transmission. The transmission part A204 at the top of the vertical rotary tiller A2 extends upward into the transmission groove 4 and is fixed coaxially with the transmission wheel A7. The transmission part B304 at the top of the vertical rotary tiller B3 extends upward into the transmission groove 4 and is fixed coaxially with the transmission wheel B8. A drive shaft 9 is fixed coaxially to the top of one of the transmission wheels A7 or the transmission wheel B8, and the drive shaft 9 passes upward through the cover plate 5 and is drivingly connected to the drive box 6 above the cover plate 5.

[0030] The vertical rotary tiller A2 includes a blade holder A201 for being fixedly connected to the frame body 1. The bottom of the blade holder A201 is coaxially connected to a blade shaft A202 and a circular blade disc 203, and the blade shaft A202 is arranged at the vertical axis of the blade holder A201. The transmission part A204 is arranged at the top of the blade shaft A202 that passes through the blade holder A201 upward. The bottom end of the blade shaft A202 is provided with a soil drilling part A205. The circular The bottom edge of the cutter disc 203 is evenly distributed with multiple downward-set cutter rods A207 centered on the axis of the cutter shaft A202. The side of the cutter rod A207 facing the rotation direction is evenly spaced from bottom to top with multiple blades A208. The blades A208 are located above the drilling part A205. The cutter shaft A202 is coaxially fixed to the axis of the circular cutter disc 203. The blades A208 throw the soil upward along their respective rotation directions.

[0031] The drilling part A205 is a conical structure with a top diameter larger than a bottom diameter. A blade B206 is provided on the side wall edge of the drilling part A205. The blade B206 is arranged in a spiral along the conical surface of the drilling part A205.

[0032] The blades A208 are inclined upward from the inside to the outside.

[0033] The tool holder A201 is a circular groove A211 opening downward, and an axial hole A210 for passing the tool shaft A202 is provided at the axis center of the bottom of the circular groove A211. A bearing sleeve A212 is provided coaxially at the top surface of the bottom of the circular groove A211 corresponding to the hole edge position of the axial hole A210. A positioning convex ring A213 is provided inwardly at the connection between the axial hole A210 and the bearing sleeve A212. The bearing sleeve A212 is rotatably connected to the tool shaft A202 through bearings A214 respectively. The end of the bearing sleeve A212 away from the tool holder A201 is fixed with a useful The circular cutter disc 203 is rotatably connected to the inner wall of the circular groove A211, and the outer wall of the circular cutter disc 203 is coaxially provided with a positioning convex ring B216. The top and bottom of the positioning convex ring B216 are rotatably connected to the inner wall of the circular groove A211 through bearings B217 and C218 respectively. The groove wall of the circular groove A211 is fixed with an annular cover B219 for axially fixing the bearing C218 at the slot position, and the cutter rod A207 extends downward from the center hole of the annular cover B219.

[0034] A plurality of connecting rods A209 evenly distributed around the axis of the cutter shaft A202 are provided at the lower part of the side wall of the cutter shaft A202 and above the drilling part A205. The number and circumferential position of the connecting rods A209 match the cutter rod A207, and the corresponding cutter rods A207 are fixedly connected to the cutter shaft A202 respectively.

[0035] The blade A220 is provided on the side facing the rotation direction and the bottom of the blade rod A207.

[0036] The vertical rotary tiller B3 includes a blade holder B301 for being fixedly connected to the frame body 1. The bottom of the blade holder B301 is coaxially connected to a blade shaft B302 and an annular blade disc 303, which rotate around a vertical axis. The blade shaft B302 is arranged at the vertical axis of the blade holder B301. The transmission part B304 is arranged at the top of the blade shaft B302 that passes through the blade holder B301 upward. The bottom end of the blade shaft B302 is provided with a soil drilling part B305. The side wall of the blade shaft B302 is provided with multiple blade layers at equal intervals from bottom to top. The blade layer includes a plurality of blades C306 evenly distributed around the axis of the blade shaft B302. The bottom edge of the annular cutter disc 303 is evenly distributed with multiple downwardly arranged cutter rods B308 centered on the axis of the cutter shaft B302. The side of the cutter rod B308 facing the rotation direction is evenly spaced from bottom to top with multiple blades E309. The blade E309 is located above the drilling part B305. The cutter shaft B302 and the annular cutter disc 303 are connected by a rotating transmission device. The rotating transmission device is located at the top of the cutter rod B308. When the cutter shaft B302 and the annular cutter disc 303 rotate, the blade C306 and the blade E309 respectively throw the soil upward along their respective rotation directions.

[0037] A screw rod 332 is coaxially provided at the bottom end of the cutter shaft B302 , and a screw rod 334 is coaxially provided at the top center of the drilling part B305 . A threaded groove 333 matching the screw rod 332 is provided at the top center of the screw rod 334 .

[0038] The drilling part B305 is a conical structure with a top diameter larger than a bottom diameter. A blade D307 is provided on the side wall edge of the drilling part B305. The blade D307 is arranged in a spiral along the conical surface of the drilling part B305.

[0039] A shaft sleeve 331 is coaxially fixed on the outer wall of the cutter shaft B302 corresponding to the rotation transmission device and the drilling part B305, and the blades C306 are respectively fixed to the outer wall of the shaft sleeve 331. The shaft sleeve 331 and the cutter shaft B302 are circumferentially fixedly connected by a key.

[0040] The blade C306 and blade E309 are respectively tilted upward along their respective rotation directions, and the angle between the blade C306 and the horizontal plane gradually increases along the direction from the free end of the blade C306 to the connection end with the knife shaft B302, and the angle between the blade E309 and the horizontal plane gradually increases along the direction from the free end of the blade E309 to the connection end with the knife rod B308; the blade E309 is tilted toward the side of the knife shaft B302 along the direction away from the connected knife rod B308, and the blade E309 is tilted downward along the direction away from the connected knife rod B308.

[0041] The blades E309 are respectively arranged between two adjacent blade layers.

[0042] The tool holder B301 is a circular groove B opening downward, and an axial hole B313 for passing the tool shaft B302 is provided at the axial center of the bottom of the circular groove B. A bearing sleeve B315 and a bearing sleeve C316 are coaxially provided at the top and bottom surfaces of the bottom of the circular groove B corresponding to the hole edge of the axial hole B313. A positioning convex ring C317 is provided inwardly at the connection between the bearing sleeve B315 and the bearing sleeve C316 corresponding to the axial hole B313. The bearing sleeve B315 and the bearing sleeve C316 are rotatably connected to the tool shaft B302 through bearings D318 and E319 respectively. An annular cover C321 for axially fixing the bearing D318 and an annular cover D322 for axially fixing the bearing E319 are fixed to the end of the bearing sleeve B315 away from the tool holder B301 and the end of the bearing sleeve C316 away from the tool holder B301 respectively. The annular cutter disc 303 is rotatably connected to the annular groove 314 formed by the circular groove B and the bearing sleeve C316. The inner and outer side walls of the annular cutter disc 303 are coaxially provided with a positioning convex ring D323 and a positioning convex ring E324. The top and bottom of the positioning convex ring D323 are rotatably connected to the bearing sleeve C316 through the bearing F325 and the bearing H327 respectively. The top and bottom of the positioning convex ring E324 are rotatably connected to the groove wall of the circular groove B through the bearing G326 and the bearing I328 respectively. The edge of the annular cover D322 extends outward to contact the bearing H327 and axially fix the bearing H327. The groove wall of the circular groove B is fixed with an annular cover E329 for axially fixing the bearing I328 at the groove position. The cutter rod B308 extends downward from the annular hole formed between the annular cover D322 and the annular cover E329.

[0043] The rotation transmission device includes a sun gear 310 coaxially fixed to the cutter shaft B302, an inner ring gear 311 coaxially fixed to the annular cutter disc 303 through the cutter rod B308, and a plurality of planetary gears 312 evenly distributed between the sun gear 310 and the inner ring gear 311 with the axis of the cutter shaft B302 as the center. The sun gear 310 is connected to the inner ring gear 311 through the planetary gears 312, and the planetary gears 312 are rotationally connected to the cutter holder B301 through the shaft.

[0044] The shaft is connected to the annular cover D322.

[0045] A connecting block 330 is fixed to the inner edge of the knife rod B308 , and the connecting block 330 is fixedly connected to the inner gear ring 311 .

[0046] The blade B335 is provided on the side facing the rotation direction and the bottom of the blade rod B308.

[0047] When the present application is used, when the drive box 6 of the rotary tiller is driven, the drive box 6 transmits power to the corresponding transmission wheel A7 through the drive shaft 9, and then the transmission wheel A7 transmits power to the adjacent transmission wheel B8 at the same time, and the transmission wheel B8 then transmits power to the adjacent transmission wheel A7 in turn, and so on, so that all the transmission wheels obtain power at the same time, and then drive the corresponding vertical rotary tiller A2 and vertical rotary tiller B3 to rotate and work at the same time.

[0048] When the transmission wheel A7 obtains power and rotates, the rotational power drives the corresponding cutter shaft A202 through the transmission part A204, which drives the drilling part A205 and the cutter bar A207 to rotate at high speed. As a result, the drilling part A205 can drive the vertical rotary blade A2 to drill downward into the soil to be rotary tilled, and at the same time, the blade B206 of the drilling part A205 breaks up the soil and turns it upward. When the rotary tiller moves forward, the cutter bar A208 rotates to the side facing the forward direction. During the rotation process, the cutter bar A208 not only cuts the soil with the blade A220, but also turns or throws a large amount of the cut soil upward while cutting the soil. Among the soil thrown upward, a part is further broken up when it passes through the high-speed rotating blade A208 during the rising and falling process, and is thrown outward under the action of centrifugation. Then, during the outward throwing process, it encounters the rotating vertical blade A208. The rotary tiller B3 is further broken up when it falls to the ground; some of the soil is blocked and broken by colliding with the cutter bar A208 or the other blades A208, and then falls on the ground within the range surrounded by the rotation of the cutter bar A208 and is further broken up; as the vertical rotary tiller A2 continuously throws out some of the cut soil during tillage, the soil at the position of the vertical rotary tiller A2 is reduced, and in the process of the rotary tiller moving forward, the soil at the position where the vertical rotary tiller A2 is rotating forms a gully extending along the direction of the rotary tiller; in addition, the rotary tillage depth is adjusted by adjusting the different sizes of the drilling part 2055 and adjusting the distance that the rotary tiller frame 1 moves up and down.

[0049] When the transmission wheel B8 obtains power to rotate, the rotational power drives the corresponding cutter shaft B302 through the transmission part B304 to drive the sun gear 310, blade C306 and drilling part B305 to rotate at high speed. At the same time, the sun gear 310 drives the inner ring gear 311 to rotate at low speed through the planetary gear 312, so that the cutter rod B308 drives the blade E309 to rotate at low speed and high torque. The drilling part B305 can drive the vertical rotary tiller B3 to drill downward into the soil to be tilled, and at the same time, the blade D307 of the drilling part B305 breaks up the soil and turns it upward. When the rotary tiller moves forward, the cutter bar B308 rotates to the side facing the forward direction. During the rotation, not only does the blade B335 cut the soil, but the blade E309 also turns or throws a large amount of cut soil upward while cutting the soil. Among the soil thrown upward, a part is further broken up again when passing through the high-speed rotating blade C306 during the rising and falling process, and is thrown outward under the centrifugal action. Then, when it encounters the rotating cutter bar B308 during the outward throwing process, it is further broken up again and partially blocked to prevent the broken soil from being thrown further outward, so that most of the soil remains within the rotation range of the cutter bar B308, so that most of the broken soil remains in the circular range formed by the rotation of the cutter bar B308 and moves along the forward direction of the rotary tiller. The soil thrown up by the blade C306 is further broken up when it encounters the rotating blade E309 and is further thrown up within the rotation range of the blade bar B308, so that the soil can continue to be broken up by the remaining blades C306 or blade E309. The more broken up soil is easier to be thrown up, so that the more broken up soil is finally dropped onto the ground surface later, and the soil on the ground surface is looser, which is convenient for subsequent sowing operations. In addition, the soil can be gathered within the range of the blade bar B308. In addition, after the vertical rotary tiller A2 throws the soil to the surroundings during rotary tillage, the soil thrown in the direction of the vertical rotary tiller B3 will continue to be broken up within the range of the vertical rotary tiller B3 due to the structure and rotation of the vertical rotary tiller B3, so that the soil at the place where the vertical rotary tiller B3 is rotary tilled forms a ridge extending in the direction of the rotary tiller as the rotary tiller moves forward; in addition, the rotary tillage depth can be adjusted by adjusting the different sizes of the drilling part B305 and adjusting the distance that the frame body 1 moves up and down.

Claims

1. A rotary tillage device for ridge formation, characterized by: The invention comprises a frame body (1) of a long strip structure, wherein the length direction of the frame body (1) is perpendicular to the forward direction of the rotary tiller, and the bottom edge of the frame body (1) facing the direction of travel of the rotary tiller and the side facing away from the direction of travel of the rotary tiller are respectively provided with a row of vertical rotary tiller blades A (2) and a row of vertical rotary tiller blades B (3), wherein the vertical rotary tiller blades A (2) and the vertical rotary tiller blades B (3) are arranged in an interlaced manner. (3) are respectively connected to the frame body (1) for rotation, and each vertical rotary tiller blade A (2) and each vertical rotary tiller blade B (3) are connected to the drive box (6) provided on the frame body (1) for transmission. When the vertical rotary tiller blade A (2) is rotating, the soil is thrown outward, and when the vertical rotary tiller blade B (3) is rotating, the soil is thrown inward of the vertical rotary tiller blade B (3). The vertical rotary tiller blade A (2) and the adjacent vertical rotary tiller blade B (3) partially overlap in the length direction of the frame body (1).

2. The rotary tillage device for ridge formation according to claim 1, characterized in that: The frame body (1) is provided with a transmission groove (4) with an open top, and the groove of the transmission groove (4) is provided with a detachable and fixed cover plate (5), and a transmission wheel A (7) corresponding to the vertical rotary tiller A (2) and a transmission wheel B (8) corresponding to the vertical rotary tiller B (3) are rotatably connected in the transmission groove (4), respectively. The transmission wheel A (7) and the transmission wheel B (8) are respectively connected to each other in a transmission manner, and the transmission part A (204) at the top of the vertical rotary tiller A (2) extends upward into the transmission groove (4) and is fixed coaxially with the transmission wheel A (7), and the transmission part B (304) at the top of the vertical rotary tiller B (3) extends upward into the transmission groove (4) and is fixed coaxially with the transmission wheel B (8), and a driving shaft (9) is fixed coaxially to the top of one of the transmission wheels A (7) or the transmission wheel B (8), and the driving shaft (9) passes upward through the cover plate (5) and is connected to the driving box (6) above the cover plate (5).

3. The rotary tillage device for ridge formation according to claim 2, characterized in that: The vertical rotary tiller A (2) comprises a blade holder A (201) for fixed connection with the frame body (1), the bottom of the blade holder A (201) is coaxially connected to a blade shaft A (202) and a circular blade disc (203) around a vertical axis, the blade shaft A (202) is passed through the vertical axis of the blade holder A (201), the transmission part A (204) is provided at the top end of the blade shaft A (202) passing through the blade holder A (201) upwards, and the bottom end of the blade shaft A (202) is provided with a soil drilling part A (205). The bottom edge of the circular cutter disc (203) is evenly distributed with a plurality of downwardly arranged cutter bars A (207) with the axis of the cutter shaft A (202) as the center. The cutter bar A (207) is provided with a plurality of blades A (208) at equal intervals from bottom to top on the side facing the rotation direction. The blades A (208) are located above the soil drilling part A (205). The cutter shaft A (202) is coaxially fixed to the axis of the circular cutter disc (203). The blades A (208) respectively throw soil upward along their respective rotation directions.

4. The rotary tillage device for ridge formation according to claim 3, characterized in that: The soil drilling portion A (205) is a conical structure with a top diameter larger than a bottom diameter. A blade B (206) is provided on the sidewall edge of the soil drilling portion A (205). The blade B (206) is arranged to rise in a spiral along the conical surface of the soil drilling portion A (205).

5. The rotary tillage device for ridge formation according to claim 3, characterized in that: The tool holder A (201) is a circular groove A (211) with an opening downward, and an axial hole A (210) for passing the tool shaft A (202) is provided at the axial center of the groove bottom of the circular groove A (211), and a bearing sleeve A (212) is provided coaxially at the top surface of the groove bottom of the circular groove A (211) corresponding to the hole edge position of the axial hole A (210), and a positioning convex ring A (213) is provided inwardly at the connection between the axial hole A (210) and the bearing sleeve A (212), and the bearing sleeve A (212) and the tool shaft A (202) are rotatably connected respectively by bearings A (214), and the end of the bearing sleeve A (212) away from the tool holder A (201) is fixed with a An annular cover A (215) is provided for axially fixing the bearing A (214); the circular cutter disc (203) is rotatably connected to the inner wall of the groove of the circular groove A (211); a positioning convex ring B (216) is provided coaxially on the outer wall of the circular cutter disc (203); the top and bottom of the positioning convex ring B (216) are rotatably connected to the inner wall of the groove of the circular groove A (211) through a bearing B (217) and a bearing C (218), respectively; an annular cover B (219) for axially fixing the bearing C (218) is fixed to the groove wall of the circular groove A (211) at the groove opening position; and the cutter rod A (207) extends downward from the center hole of the annular cover B (219).

6. The rotary tillage device for ridge formation according to claim 2, characterized in that: The vertical rotary tiller B (3) includes a blade holder B (301) for fixed connection with the frame body (1), the bottom of the blade holder B (301) is coaxially connected to a blade shaft B (302) and an annular blade disc (303) around a vertical axis, the blade shaft B (302) is arranged at the vertical axis of the blade holder B (301), the transmission part B (304) is arranged at the top of the blade shaft B (302) passing through the blade holder B (301) upward, the bottom end of the blade shaft B (302) is provided with a soil drilling part B (305), and the side wall of the blade shaft B (302) is evenly spaced from bottom to top. The blade layer includes a plurality of blades C (306) uniformly distributed around the axis of the blade shaft B (302). ), a plurality of downwardly arranged cutter bars B (308) are evenly distributed on the bottom edge of the annular cutter disc (303) with the axis of the cutter shaft B (302) as the center, a plurality of blades E (309) are evenly spaced from bottom to top on the side of the cutter shaft B (308) facing the rotation direction, the blades E (309) are located above the soil drilling part B (305), the cutter shaft B (302) and the annular cutter disc (303) are connected by a rotation transmission device, and the rotation transmission device is located at the top of the cutter bar B (308), when the cutter shaft B (302) and the annular cutter disc (303) rotate, the blades C (306) and the blades E (309) respectively throw the soil upward along their respective rotation directions.

7. The rotary tillage device for ridge formation according to claim 6, characterized in that: The soil drilling portion B (305) is a conical structure with a top diameter larger than a bottom diameter. A blade D (307) is provided on the side wall edge of the soil drilling portion B (305). The blade D (307) is arranged to form a spiral rise along the conical surface of the soil drilling portion B (305).

8. The rotary tillage device for ridge formation according to claim 6, characterized in that: The blade C (306) and the blade E (309) are respectively inclined upward along their respective rotation directions, and the angle between the blade C (306) and the horizontal plane gradually increases along the direction from the free end of the blade C (306) to the end connected to the blade shaft B (302), and the angle between the blade E (309) and the horizontal plane gradually increases along the direction from the free end of the blade E (309) to the end connected to the blade rod B (308); the blade E (309) is inclined toward the side of the blade shaft B (302) along the direction away from the connected blade rod B (308), and the blade E (309) is inclined downward along the direction away from the connected blade rod B (308).

9. The rotary tillage device for ridge formation according to claim 6, characterized in that: The tool holder B (301) is a circular groove B with an opening downward, and an axial hole B (313) for passing the tool shaft B (302) is provided at the axial center of the groove bottom of the circular groove B. The top surface and bottom surface of the groove bottom of the circular groove B are respectively provided with a bearing sleeve B (315) and a bearing sleeve C (316) coaxially at the position of the hole edge of the axial hole B (313). The axial hole B (313) is provided with a positioning convex ring C (316) inwardly corresponding to the connection between the bearing sleeve B (315) and the bearing sleeve C (316). 17), the bearing sleeve B (315) and the bearing sleeve C (316) are rotatably connected to the cutter shaft B (302) via the bearing D (318) and the bearing E (319), respectively; an annular cover C (321) for axially fixing the bearing D (318) and an annular cover D (322) for axially fixing the bearing E (319) are fixed to one end of the bearing sleeve B (315) away from the cutter holder B (301) and one end of the bearing sleeve C (316) away from the cutter holder B (301), respectively; The annular cutter disc (303) is rotatably connected to the annular groove (314) formed by the circular groove B and the bearing sleeve C (316). The inner side wall and the outer side wall of the annular cutter disc (303) are coaxially provided with a positioning convex ring D (323) and a positioning convex ring E (324). The top and bottom of the positioning convex ring D (323) are rotatably connected to the bearing sleeve C (316) through the bearing F (325) and the bearing H (327). The top and bottom of the positioning convex ring E (324) are respectively The annular cover D (322) is rotatably connected to the groove wall of the circular groove B through the bearing G (326) and the bearing I (328), the edge of the annular cover D (322) extends outward to contact the bearing H (327) and axially fix the bearing H (327), and the groove wall of the circular groove B is fixed with an annular cover E (329) for axially fixing the bearing I (328) at the groove position, and the knife bar B (308) extends downward from the annular hole formed between the annular cover D (322) and the annular cover E (329).

10. The rotary tillage device for ridge formation according to claim 6, characterized in that: The rotation transmission device comprises a sun gear (310) coaxially fixed to the cutter shaft B (302), an inner gear ring (311) coaxially fixed to the annular cutter disc (303) via the cutter rod B (308), and a plurality of planetary gears (312) uniformly distributed between the sun gear (310) and the inner gear ring (311) with the axis of the cutter shaft B (302) as the center. The sun gear (310) is transmission-connected to the inner gear ring (311) via the planetary gears (312), and the planetary gears (312) are rotationally connected to the cutter holder B (301) via the shaft.

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