A rotary tiller

Abstract

The invention discloses a rotary tiller, wherein a driving pulley is fixed on the output shaft of an engine, the driving pulley is connected to a driven pulley through a power belt, the driven pulley is fixed on the power shaft, a movable bevel gear is meshed with a rotary tiller bevel gear, the rotary tiller bevel gear is fixed on a rotary tiller reducer connecting shaft, the other end of the rotary tiller reducer connecting shaft is connected to the input shaft of the rotary tiller reducer, the output shaft of the rotary tiller reducer is connected with a universal joint coupling, the other end of the universal joint coupling is connected to the input shaft of a rotary tiller connecting reducer, the output shaft of the rotary tiller connecting reducer is connected to the rotating shaft of the rotary tiller, the other end of the rotary tiller rotating shaft is fixed with a connecting sleeve, the connecting sleeve is fixed on a rotary tiller lifting cylindrical rack, the rotary tiller lifting cylindrical rack is meshed with a gear 1, the gear 1 is fixed on a lifting transmission shaft, the lifting transmission shaft is fixed with a gear 2, and the gear 2 is meshed with a wheel lifting cylindrical rack. The invention has the beneficial effect of improving the working efficiency of tillage.

Description

Technical Field

[0001] The present invention relates to the technical field of agricultural machinery and equipment, and more particularly to a rotary tiller. 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.

[0003] In the vast rural areas, farmers' arable land plots vary in size and are not cultivated in a centralized manner but are rather scattered. When farmers need to cultivate land, other plots nearby may not be able to be cultivated, for example, others have just finished watering their land or there are crops on their land. In this way, existing rotary tillers have to turn around in the limited land and make multiple turns, which is laborious and time-consuming. Summary of the invention

[0004] In view of the above defects, the present invention provides a rotary tiller to solve the problem that the existing rotary tiller needs to turn around many times when tilling a small plot of land, which is laborious and time-consuming.

[0005] To achieve the above object, the present invention adopts the following technical solutions:

[0006] A rotary tiller comprises an upper frame, a lower frame and a frame connecting plate, the lower frame is fixed to the upper frame through the frame connecting plate, and fixing plates are fixed to the upper frame and the lower frame; an engine is fixed to the fixing plate of the upper frame, a driving pulley is fixed to the output shaft of the engine, the driving pulley is connected to the driven pulley through a power belt, the driven pulley is fixed to the power shaft, the power shaft is mounted on a bearing seat 1, the bearing seat 1 is fixed to a bearing seat bracket, and the bearing seat bracket is fixed to the fixing plate of the upper frame; spline shafts are fixed at both ends of the power shaft, a moving bevel gear is mounted on the spline shaft, a spline groove is provided on the inner ring of the moving bevel gear, and the spline shaft is inserted in the spline groove; two moving The bevel gears are all equipped with connecting rings, and the two connecting rings are respectively connected to the clutch fork 1 and the clutch fork 2. The clutch fork 1 and the clutch fork 2 are both equipped with plug shafts, which are fixed on the limit pin plug plate, the limit pin plug plate is fixed on the fixed column, and the fixed column is fixed on the fixed plate of the upper frame, wherein the clutch fork 1, the clutch fork 2 and the limit pin plug plate are all provided with plug holes, and the clutch fork 1 and the clutch fork 2 are fixed to the limit pin plug plate through the limit pin; the mobile bevel gear connected to the clutch fork 1 is meshed with a rotary tillage bevel gear, and the rotary tillage bevel gear is fixed on the rotary tillage reducer connecting shaft, and the other end of the rotary tillage reducer connecting shaft is connected to the input shaft of the rotary tillage reducer through a coupling, and the output of the rotary tillage reducer The shaft is connected with a universal joint coupling, and the other end of the universal joint coupling passes through the fixed plate of the lower frame and is connected to the input shaft of the rotary plow connecting the reducer, and the output shaft of the rotary plow connecting the reducer is connected to the rotating shaft of the rotary plow through a coupling, and the other end of the rotating shaft of the rotary plow is fixed with a connecting sleeve, and the connecting sleeve is fixed on the rotary plow lifting cylindrical rack, and the rotary plow lifting cylindrical rack is meshed with gear one, and gear one is fixed on the lifting transmission shaft, and the lifting transmission shaft is installed on the lifting transmission shaft sleeve, and the lifting transmission shaft sleeve is fixed on the transmission shaft sleeve support seat, and the transmission shaft sleeve support seat is fixed on the fixed plate of the lower frame; the lifting transmission shaft is also fixed with gear two, and gear two is meshed with the wheel lifting cylindrical rack, and the wheel A mounting shaft connecting plate is fixed to the lower end of the wheel lifting cylindrical rack, and wheel mounting shafts are fixed to both ends of the mounting shaft connecting plate, and wheel mounting bearings are installed on the wheel mounting shaft, and the outer ring of the wheel mounting bearing is fixed to the wheel; a pulley 1 is also fixed to the power shaft, and the pulley 1 is connected to the pulley 2 through a belt, and the pulley 2 is fixed to the fixed shaft of the pulley 2, and the fixed shaft of the pulley 2 is installed on the bearing seat 2, and the bearing seat 2 is fixed to the fixed plate of the upper frame, and a bevel gear 1 is fixed to the fixed shaft of the pulley 2, and the bevel gear 1 is meshed with the bevel gear 2, and the bevel gear 2 is fixed to the fixed shaft of the bevel gear 2, and the fixed shaft of the bevel gear 2 is installed on the bearing seat 3, and the bearing seat 3 is fixed to the fixed plate of the upper frame;The end of the bevel gear second fixed shaft away from the bevel gear second is processed with a spline, and the spline is installed on the bevel gear third, and the bevel gear third is meshed with the lifting bevel gear, and the inner ring of the bevel gear third is provided with a spline groove, and the spline is inserted in the spline groove. A connecting ring is mounted on the bevel gear third, and the connecting ring is connected to the clutch fork third, and a plug shaft is inserted on the clutch fork third, and the plug shaft is fixed on the limit pin plug plate, and the limit pin plug plate is fixed on the fixed column, and the fixed column is fixed on the fixed plate of the upper frame, wherein the clutch fork third and the limit pin plug plate are provided with plug holes, and the clutch fork third is fixed to the limit pin plug plate by the limit pin; the moving bevel gear connected to the clutch fork second is meshed with the lifting bevel gear, and the lifting bevel gear The gear is fixed on the lifting reducer connecting shaft, the lower end of the lifting reducer connecting shaft is connected to the input shaft of the lifting reducer through a coupling, the output shaft of the lifting reducer is connected to the lifting connecting shaft through a coupling, the lifting connecting shaft is installed on the lifting connecting shaft support seat, and the lifting connecting shaft support seat is fixed to the fixed plate of the lower frame; the lifting connecting shaft is fixed with a bevel gear 4 at one end away from the lifting reducer, the bevel gear 4 is meshed with a bevel gear 5, and the bevel gear 5 is fixed to the lifting transmission shaft; the bottom end of the fixed plate of the lower frame is fixed with a slewing support bearing, and the lower end of the slewing support bearing is fixed with a steering support platform; the rotary plow and wheels are arranged below the lower frame. ;

[0007] Furthermore, the rotary plow lifting cylindrical rack and the wheel lifting cylindrical rack are both equipped with support sleeves, and the support sleeves are fixed on the upper frame and the lower frame.

[0008] Furthermore, the rotary tillage reducer connecting shaft and the lifting reducer connecting shaft are both provided with shaft sleeves, the shaft sleeves are fixed on shaft sleeve mounting frames, and the shaft sleeve mounting frames are fixed on the fixing plate of the lower frame.

[0009] Furthermore, the upper frame and the lower frame are both welded by channel steel.

[0010] The beneficial effects of the present invention are as follows: the present device solves the problem that the existing rotary tillers need to turn around multiple times when tilling small plots, which is time-consuming and labor-intensive; the present device can conveniently turn around once after reaching the end of the field, saving time and labor and improving the efficiency of tilling. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 The structure diagram of a rotary tiller according to the present invention is shown in FIG. Figure 1 ;

[0012] Figure 2 yes Figure 1 A partial enlarged view of point A;

[0013] Figure 3 The structure diagram of a rotary tiller according to the present invention is shown in FIG. Figure 2 ;

[0014] Figure 4 yes Figure 3 A partial enlarged view of point B;

[0015] Figure 5 The structure diagram of a rotary tiller according to the present invention is shown in FIG. Figure 3 ;

[0016] Figure 6 yes Figure 5 A partial enlarged view of point C;

[0017] Figure 7 This is a schematic diagram of the connection between the moving bevel gear and the clutch fork 1. Figure 1 ;

[0018] Figure 8 This is a schematic diagram of the connection between the moving bevel gear and the clutch fork 1. Figure 2 ;

[0019] In the figure, 1, upper frame; 2, lower frame; 3, frame connecting plate; 4, engine; 5, driving pulley; 6, driven pulley; 7, power belt; 8, power shaft; 9, bearing seat 1; 10, bearing seat bracket; 11, spline shaft; 12, moving bevel gear; 13, rotary bevel gear; 14, rotary reducer connecting shaft; 15, rotary reducer; 16, clutch fork 1; 17, clutch fork 2; 18, clutch fork 3; 19, limit pin; 20, fixed column; 21, plug shaft; 22, universal joint coupling; 23, rotary plow; 24, rotary plow connected to reducer; 25, connecting sleeve; 26, rotary plow lifting cylindrical rack; 27, supporting sleeve; 28, gear 1; 29, wheel lifting cylindrical rack; 30, lifting transmission shaft; 31, lifting transmission 1. Axle sleeve; 32. Drive shaft sleeve support seat; 33. Pulley one; 34. Pulley two; 35. Belt; 36. Pulley two fixed shaft; 37. Bearing seat two; 38. Bevel gear one; 39. Bevel gear two; 40. Bearing seat three; 41. Bevel gear two fixed shaft; 42. Bevel gear three; 43. Lifting bevel gear; 44. Lifting reducer connecting shaft; 45. Lifting reducer; 46. Lifting connecting shaft; 47. Lifting connecting shaft support seat; 48. Bevel gear four; 49. Bevel gear five; 50. Gear two; 51. Slewing support bearing; 52. Steering support platform; 53. Wheel; 54. Wheel mounting shaft; 55. Mounting shaft connecting plate; 56. Wheel mounting bearing; 57. Bushing; 58. Bushing mounting frame; 59. Limit pin plug plate; 60. Connecting ring. DETAILED DESCRIPTION

[0020] The present invention will be described in detail below in conjunction with the accompanying drawings. Figure 1-8As shown, a rotary tiller comprises an upper frame 1, a lower frame 2 and a frame connecting plate 3, the lower frame 2 is fixed to the upper frame 1 through the frame connecting plate 3, and fixing plates are fixed to the upper frame 1 and the lower frame 2; an engine 4 is fixed to the fixing plate of the upper frame 1, a driving pulley 5 is fixed to the output shaft of the engine 4, the driving pulley 5 is connected to the driven pulley 6 through a power belt 7, the driven pulley 6 is fixed to a power shaft 8, the power shaft 8 is mounted on a bearing seat 9, the bearing seat 9 is fixed to a bearing seat bracket 10, and the bearing seat bracket 10 is fixed to the fixing plate of the upper frame 1; spline shafts 11 are fixed to both ends of the power shaft 8, and a movable bevel gear 1 is installed on the spline shaft 11 2. The inner ring of the movable bevel gear 12 is provided with a spline groove, and the spline shaft 11 is inserted into the spline groove; the two movable bevel gears 12 are both provided with a connecting ring 60, and the two connecting rings 60 are respectively connected to the clutch fork 1 16 and the clutch fork 2 17, and the clutch fork 1 16 and the clutch fork 2 17 are both inserted with an insert shaft 21, and the insert shaft 21 is fixed on the limit pin plug plate 59, and the limit pin plug plate 59 is fixed on the fixed column 20, and the fixed column 20 is fixed on the fixed plate of the upper frame 1, wherein the clutch fork 1 16, the clutch fork 2 17 and the limit pin plug plate 59 are all provided with a plug hole, and the clutch fork 1 16 and the clutch fork 2 17 are fixed to the limit pin plug plate 59 through the limit pin 19; and the clutch fork 1 The mobile bevel gear 12 connected to the shift fork 16 is meshed with a rotary tillage bevel gear 13, and the rotary tillage bevel gear 13 is fixed on the rotary tillage reducer connecting shaft 14. The other end of the rotary tillage reducer connecting shaft 14 is connected to the input shaft of the rotary tillage reducer 15 through a coupling. The output shaft of the rotary tillage reducer 15 is connected with a universal joint coupling 22. The other end of the universal joint coupling 22 passes through the fixed plate of the lower frame 2 and is connected to the input shaft of the rotary tillage plow connecting reducer 24. The output shaft of the rotary tillage plow connecting reducer 24 is connected to the rotating shaft of the rotary tillage plow 23 through a coupling. The other end of the rotating shaft of the rotary tillage plow 23 is fixed with a connecting sleeve 25, and the connecting sleeve 25 is fixed on the rotary tillage plow lifting cylindrical rack 26. The rotary tillage plow lifting The cylindrical rack 26 is meshed with a gear 1 28, which is fixed on a lifting transmission shaft 30, which is mounted on a lifting transmission shaft sleeve 31, which is fixed on a transmission shaft sleeve support seat 32, which is fixed on a fixed plate of the lower frame 2; a gear 2 50 is also fixed on the lifting transmission shaft 30, which is meshed with a wheel lifting cylindrical rack 29, a mounting shaft connecting plate 55 is fixed at the lower end of the wheel lifting cylindrical rack 29, a wheel mounting shaft 54 ​​is fixed at both ends of the mounting shaft connecting plate 55, a wheel mounting bearing 56 is mounted on the wheel mounting shaft 54, and a wheel 53 is fixed to the outer ring of the wheel mounting bearing 56;A pulley 1 33 is also fixed on the power shaft 8, and the pulley 1 33 is connected to a pulley 2 34 through a belt 35. The pulley 2 34 is fixed on a pulley 2 fixed shaft 36, and the pulley 2 fixed shaft 36 is installed on a bearing seat 2 37, and the bearing seat 2 37 is fixed on the fixed plate of the upper frame 1. A bevel gear 1 38 is fixed on the pulley 2 fixed shaft 36, and the bevel gear 1 38 is meshed with a bevel gear 2 39, and the bevel gear 2 39 is fixed on the bevel gear 2 fixed shaft 41, and the bevel gear 2 fixed shaft 41 is installed on the bearing seat 3 40, and the bearing seat 3 40 is fixed on the fixing plate of the upper frame 1; a spline is processed on one end of the bevel gear second fixing shaft 41 away from the bevel gear second 39, and a bevel gear third 42 is installed on the spline, and the bevel gear third 42 is meshed with the lifting bevel gear 43. The inner ring of the bevel gear third 42 is provided with a spline groove, and the spline is inserted in the spline groove. A connecting ring 60 is set on the bevel gear third 42, and the connecting ring 60 is connected to the clutch fork third 18. The clutch fork third 18 is inserted with an insert shaft 21, and the insert shaft 21 is fixed on the limit pin plug plate 59, and the limit pin plug plate 59 is fixed on the fixed column 20 The fixing column 20 is fixed on the fixing plate of the upper frame 1, wherein the clutch fork 3 18 and the limit pin plug plate 59 are provided with plug holes, and the clutch fork 3 18 is fixed to the limit pin plug plate 59 through the limit pin 19; the moving bevel gear 12 connected to the clutch fork 2 17 is meshed with a lifting bevel gear 43, and the lifting bevel gear 43 is fixed on the lifting reducer connecting shaft 44, and the lower end of the lifting reducer connecting shaft 44 is connected to the input shaft of the lifting reducer 45 through a coupling, and the output shaft of the lifting reducer 45 is connected to the lifting connecting shaft 4 through a coupling. 6. The lifting connecting shaft 46 is installed on the lifting connecting shaft support seat 47, and the lifting connecting shaft support seat 47 is fixed on the fixed plate of the lower frame 2; a bevel gear 48 is fixed on the end of the lifting connecting shaft 46 away from the lifting reducer 45, and the bevel gear 48 is meshed with a bevel gear 5 49, and the bevel gear 5 49 is fixed on the lifting transmission shaft 30; a slewing support bearing 51 is fixed on the bottom end of the fixed plate of the lower frame 2, and a steering support platform 52 is fixed on the lower end of the slewing support bearing 51; the rotary plow 23 and the wheel 53 are arranged below the lower frame 2;

[0021] The rotary plow lifting cylindrical rack 26 and the wheel lifting cylindrical rack 29 are both equipped with support sleeves 27, and the support sleeves 27 are fixed on the upper frame 1 and the lower frame 2;

[0022] The rotary tillage reducer connecting shaft 14 and the lifting reducer connecting shaft 44 are both provided with a shaft sleeve 57, the shaft sleeve 57 is fixed on a shaft sleeve mounting frame 58, and the shaft sleeve mounting frame 58 is fixed on a fixing plate of the lower frame 2;

[0023] The upper frame 1 and the lower frame 2 are both welded by channel steel.

[0024] In this embodiment, when the device is required to plow the land, the rotary plow 23 and the wheel 53 of the device are in Figure 1In the state shown, there is an operator on the fixed plate of the upper frame 1; at this time, the engine 4 is started, the engine 4 drives the active pulley 5 to rotate, the active pulley 5 drives the driven pulley 6 to rotate through the power belt 7, the driven pulley 6 drives the power shaft 8 to rotate, the power shaft 8 drives the spline shaft 11 to rotate, the spline shaft 11 drives the moving bevel gear 12 to rotate, at this time, the clutch fork 16 is turned by hand, so that the clutch fork 16 drives the moving bevel gear 12 to engage with the rotary tillage bevel gear 13, the rotary tillage bevel gear 13 will drive the rotary tillage reducer connecting shaft 14 to rotate, the rotary tillage reducer connecting shaft 14 will drive the universal joint coupling 22 to rotate through the rotary tillage reducer 15, the universal joint coupling 22 will drive the rotary tillage plough 23 to rotate through the rotary tillage plough connecting reducer 24, so that the rotary tillage The plow 23 drives the device forward while plowing the land; when the land needs to turn when plowing to the end of the field, the clutch fork 16 is turned by hand to make the clutch fork 16 drive the moving bevel gear 12 to disengage from the rotary bevel gear 13, and the clutch fork 2 17 is turned by hand to make the clutch fork 2 17 drive the moving bevel gear 12 to engage with the lifting bevel gear 43. At this time, the lifting bevel gear 43 will drive the lifting reducer connecting shaft 44 to rotate, and the lifting reducer connecting shaft 44 will drive the lifting connecting shaft 46 to rotate through the lifting reducer 45, and the lifting connecting shaft 46 will drive the bevel gear 4 48 to rotate, and the bevel gear 4 48 will drive the bevel gear 5 49 to rotate, and the bevel gear 5 49 will drive the lifting transmission shaft 30 to rotate, and the lifting transmission shaft 30 will drive gear 1 28 and gear 2 50 to rotate. When the rotary plow 23 is moved, gear 1 28 will drive the rotary plow 23 to rise through the rotary plow lifting cylindrical rack 26, and gear 2 50 will drive the wheel 53 to descend through the wheel lifting cylindrical rack 29. When the rotary plow 23 leaves the ground, the wheel 53 has not yet touched the ground. At this time, the steering support platform 52 is in contact with the ground. At this time, the clutch fork 2 17 is rotated to make the clutch fork 2 17 drive the moving bevel gear 12 to disengage from the lifting bevel gear 43. At this time, the rotary plow 23 and the wheel 53 no longer move. At this time, the device is rotated by hand to make the fixed plate of the lower frame 2 drive the slewing support bearing 51 to rotate, so that the device can be turned. After the turning is completed, the clutch fork 3 18 is rotated by hand to make the clutch fork 3 18 drive the bevel gear 3 42 to engage with the lifting bevel gear 43. At this time, the bevel gear The three 42 will drive the lifting bevel gear 43 to rotate in the opposite direction, so that the lifting bevel gear 43 drives the lifting reducer connecting shaft 44 to rotate in the opposite direction, and the lifting reducer connecting shaft 44 will drive the lifting connecting shaft 46 to rotate in the opposite direction through the lifting reducer 45, and the lifting connecting shaft 46 will drive the bevel gear four 48 to rotate in the opposite direction, and the bevel gear four 48 will drive the bevel gear five 49 to rotate in the opposite direction, and the bevel gear five 49 will drive the lifting transmission shaft 30 to rotate in the opposite direction, and the lifting transmission shaft 30 will drive the gear one 28 and the gear two 50 to rotate in the opposite direction, and the gear one 28 will drive the rotary plow 23 to descend through the rotary plow lifting cylindrical rack 26, and the gear two 50 will drive the wheel 53 to rise through the wheel lifting cylindrical rack 29, so that the rotary plow 23 contacts the ground again, and the steering support platform 52 is separated from the ground;At this time, the clutch fork 3 18 is rotated to make the clutch fork 3 18 drive the bevel gear 3 42 to disengage from the lifting bevel gear 43, and the clutch fork 1 16 is rotated to make the clutch fork 1 16 drive the moving bevel gear 12 to mesh with the rotary bevel gear 13, and the rotary plow 23 will work again; the device can achieve a successful turn, saving time and effort, and improving the efficiency of farming. ;

[0025] The above technical solutions only reflect the preferred technical solutions of the technical solutions of the present invention. Some changes that may be made to certain parts thereof by technicians in this technical field all reflect the principles of the present invention and fall within the protection scope of the present invention.

Claims

1. A rotary tiller, characterized in that: The invention comprises an upper frame (1), a lower frame (2) and a frame connecting plate (3), wherein the lower frame (2) is fixed to the upper frame (1) via the frame connecting plate (3), and fixing plates are fixed to the upper frame (1) and the lower frame (2); an engine (4) is fixed to the fixing plate of the upper frame (1), a driving pulley (5) is fixed to the output shaft of the engine (4), the driving pulley (5) is connected to a driven pulley (6) via a power belt (7), the driven pulley (6) is fixed to a power shaft (8), the power shaft (8) is mounted on a bearing seat (9), the bearing seat (9) is fixed to a bearing seat bracket (10), and the bearing seat bracket (10) is fixed to the fixing plate of the upper frame (1) The two ends of the power shaft (8) are fixed with a spline shaft (11), a movable bevel gear (12) is installed on the spline shaft (11), the inner ring of the movable bevel gear (12) is provided with a spline groove, and the spline shaft (11) is inserted into the spline groove; the two movable bevel gears (12) are both provided with a connecting ring (60), the two connecting rings (60) are respectively connected to the clutch fork 1 (16) and the clutch fork 2 (17), the clutch fork 1 (16) and the clutch fork 2 (17) are both inserted with an insert shaft (21), the insert shaft (21) is fixed on the limit pin plug plate (59), the limit pin plug plate (59) is fixed on the fixed column (20), and the fixed column (20) is fixed on the fixed plate of the upper frame (1), The clutch fork 1 (16), the clutch fork 2 (17) and the limit pin plug plate (59) are all provided with plug holes, and the clutch fork 1 (16) and the clutch fork 2 (17) are fixed to the limit pin plug plate (59) via the limit pin (19); the movable bevel gear (12) connected to the clutch fork 1 (16) is meshed with a rotary bevel gear (13), and the rotary bevel gear (13) is fixed to the rotary reducer connecting shaft (14), and the other end of the rotary reducer connecting shaft (14) is connected to the input shaft of the rotary reducer (15) via a coupling, and the output shaft of the rotary reducer (15) is connected to a universal joint coupling (22), and the other end of the universal joint coupling (22) passes through the fixed shaft of the lower frame (2). The fixed plate is connected to an input shaft of a rotary plow connecting reducer (24); the output shaft of the rotary plow connecting reducer (24) is connected to a rotating shaft of the rotary plow (23) via a coupling; a connecting sleeve (25) is fixed to the other end of the rotating shaft of the rotary plow (23); the connecting sleeve (25) is fixed to a rotary plow lifting cylindrical rack (26); the rotary plow lifting cylindrical rack (26) is meshed with a gear 1 (28); the gear 1 (28) is fixed to a lifting transmission shaft (30); the lifting transmission shaft (30) is mounted on a lifting transmission shaft sleeve (31); the lifting transmission shaft sleeve (31) is fixed to a transmission shaft sleeve support seat (32); the transmission shaft sleeve support seat (32) is fixed to a fixed plate of the lower frame (2);The lifting transmission shaft (30) is also fixed with a second gear (50), the second gear (50) is meshed with a wheel lifting cylindrical rack (29), a mounting shaft connecting plate (55) is fixed to the lower end of the wheel lifting cylindrical rack (29), a wheel mounting shaft (54) is fixed to both ends of the mounting shaft connecting plate (55), a wheel mounting shaft (54) is mounted on the wheel mounting shaft (54), a wheel mounting bearing (56) is mounted on the outer ring of the wheel mounting bearing (56), and a wheel (53) is fixed to the outer ring of the wheel mounting bearing (56); the power shaft (8) is also fixed with a first pulley (33), the first pulley (33) is connected to a second pulley (34) via a belt (35), the second pulley (34) is fixed to a second pulley fixed shaft (36), and the second pulley fixed shaft (36) is mounted on a second bearing seat (37). The second bearing seat (37) is fixed on the fixed plate of the upper frame (1), the second pulley fixed shaft (36) is fixed with a bevel gear (38), the first bevel gear (38) is meshed with a bevel gear (39), the second bevel gear (39) is fixed on the second bevel gear fixed shaft (41), the second bevel gear fixed shaft (41) is installed on the third bearing seat (40), and the third bearing seat (40) is fixed on the fixed plate of the upper frame (1); the second bevel gear fixed shaft (41) is processed with a spline at one end away from the second bevel gear (39), the third bevel gear (42) is installed on the spline, the third bevel gear (42) is meshed with the lifting bevel gear (43), the inner ring of the third bevel gear (42) is provided with a spline groove, the spline is inserted in the spline groove, and the third bevel gear (42) is on the third bevel gear (42). A connecting ring (60) is provided, the connecting ring (60) is connected to the clutch fork 3 (18), the clutch fork 3 (18) is plugged with an insert shaft (21), the insert shaft (21) is fixed to a limit pin plug plate (59), the limit pin plug plate (59) is fixed to a fixed column (20), the fixed column (20) is fixed to a fixed plate of the upper frame (1), wherein the clutch fork 3 (18) and the limit pin plug plate (59) are both provided with plug holes, the clutch fork 3 (18) is fixed to the limit pin plug plate (59) via a limit pin (19); the moving bevel gear (12) connected to the clutch fork 2 (17) is meshed with a lifting bevel gear (43), the lifting bevel gear (43) is fixed to a lifting reducer connecting shaft (44), and the lifting reducer connecting shaft (45) is connected to the clutch fork 3 (18). The lower end of the lifting and lowering reducer (4) is connected to the input shaft of the lifting and lowering reducer (45) through a coupling, the output shaft of the lifting and lowering reducer (45) is connected to the lifting and lowering connecting shaft (46) through a coupling, the lifting and lowering connecting shaft (46) is installed on the lifting and lowering connecting shaft support seat (47), and the lifting and lowering connecting shaft support seat (47) is fixed to the fixed plate of the lower frame (2); the lifting and lowering connecting shaft (46) is fixed with a bevel gear four (48) at one end away from the lifting and lowering reducer (45), the bevel gear four (48) is meshed with a bevel gear five (49), and the bevel gear five (49) is fixed to the lifting and lowering transmission shaft (30); the bottom end of the fixed plate of the lower frame (2) is fixed with a slewing support bearing (51), and the lower end of the slewing support bearing (51) is fixed with a steering support platform (52);The rotary plow (23) and wheels (53) are arranged below the lower frame (2); The rotary plow lifting cylindrical rack (26) and the wheel lifting cylindrical rack (29) are both provided with support sleeves (27), and the support sleeves (27) are fixed on the upper frame (1) and the lower frame (2); The rotary tillage reducer connecting shaft (14) and the lifting reducer connecting shaft (44) are both provided with shaft sleeves (57), the shaft sleeves (57) are fixed on shaft sleeve mounting frames (58), and the shaft sleeve mounting frames (58) are fixed on the fixing plate of the lower frame (2); The upper frame (1) and the lower frame (2) are both welded from channel steel.

Images