Novel four-wheel-drive mini-tiller with ditching function

Abstract

The invention belongs to the field of mini-tillers, and provides a novel four-wheel-drive mini-tiller with a ditching function, which comprises a four-wheel-drive gearbox assembly, the four-wheel-drive gearbox assembly is provided with a walking output shaft, the walking output shaft is provided with a rear wheel, the side surface of the four-wheel-drive gearbox assembly is fixedly provided with an engine, and the side surface of the four-wheel-drive gearbox assembly is provided with a furrow opener. The output end of the engine is connected with the input end of the four-wheel-drive gearbox assembly, an oil tank is arranged on the engine, and a handlebar is further arranged on the four-wheel-drive gearbox assembly. A bottom frame is installed on the side face, away from the handlebar, of the four-wheel-drive gearbox assembly, and a vertical arm is fixedly connected to the bottom frame. By improving the power input box assembly and arranging the purely mechanically-driven telescopic assembly, the output actuator can be mechanically driven, assistance of an electric power system is not needed, manual adjustment by workers is not needed, meanwhile, in the ditching process, the telescopic assembly can be operated to adjust the output actuator, use is more flexible, and operation is more convenient.

Description

Technical Field

[0001] The invention belongs to the field of micro-tillage machines, and in particular relates to a novel four-wheel drive micro-tillage machine with a furrowing function. Background Art

[0002] The micro-tillage machine is powered by a small diesel engine or gasoline engine, and has the characteristics of light weight, small size, simple structure and strong power. The micro-tillage machine is widely used in dry land, paddy fields, orchards, etc. in plains, mountainous areas and hills; it can be equipped with corresponding machines to perform operations such as pumping water, generating electricity, spraying and spraying, and is the best choice for farmers and consumers to replace ox plowing. Four-wheel drive micro-tillage machines are also widely used for trenching after being installed or modified. The strong power output and excellent control performance greatly shorten the trenching time.

[0003] At present, hand-held micro-tillers are widely used, but their structure is simple and they are composed of pure machinery. They are usually not equipped with an electric system, so when adjusting the trenching tool, the staff needs to make manual adjustments. When the trenching tool is heavy, one person cannot install and adjust it, and other people need to cooperate. The operation is more troublesome. In addition, during the trenching process, when you want to adjust the trenching tool, you need to stop the micro-tiller first and then adjust it. The flexibility is poor and the convenience is low. Summary of the invention

[0004] The purpose of the present invention is to provide a novel four-wheel drive micro-tillage machine with a furrowing function, aiming to solve the technical problems of troublesome operation and poor flexibility caused by the need to manually adjust the furrowing cutter in the prior art.

[0005] The present invention is implemented as follows: a novel four-wheel drive micro-tillage machine with a furrowing function comprises a four-wheel drive gearbox assembly, the four-wheel drive gearbox assembly is provided with a travel output shaft, a rear wheel is installed on the travel output shaft, an engine is fixedly installed on the side of the four-wheel drive gearbox assembly, the output end of the engine is connected to the input end of the four-wheel drive gearbox assembly, an oil tank is provided on the engine, the output end of the oil tank is connected to the oil inlet of the engine, the oil tank provides fuel for the engine, diesel or gasoline, and a handlebar is also provided on the four-wheel drive gearbox assembly;

[0006] A chassis is installed on the side of the four-wheel drive gearbox assembly away from the handlebars, a front wheel is installed at the bottom of one end of the chassis away from the handlebars, a vertical arm is fixedly connected to the chassis, a ditching mechanism for ditching the land is hinged on the vertical arm, and an input end of the ditching mechanism is drivingly connected to an output end of the four-wheel drive gearbox assembly;

[0007] A telescopic component is installed on the base frame, one end of which is connected to a ditching mechanism. The telescopic component is used to drive the ditching mechanism to rotate, so that the ditching mechanism is raised or lowered. When the ditching mechanism is lowered, the land can be ditched.

[0008] Further technical solution: The trenching mechanism includes a power input box assembly and an output actuator, the power input box assembly is hinged on the vertical arm, the output actuator is installed on the side of the power input box assembly, and the output end of the power input box assembly is connected to the input end of the output actuator.

[0009] Further technical solution: The power input box assembly includes an input box body, which is hinged on the base frame, an input shaft is rotatably installed inside the input box body, a driving bevel gear is fixedly installed on the input shaft, a passive bevel gear is also rotatably installed inside the input box body, the passive bevel gear is meshed with the driving bevel gear, and one end of the passive bevel gear is connected to the input end of the output actuator.

[0010] Further technical solution: an input pulley is fixedly installed on one end of the input shaft extending out of the input housing, an output pulley is fixedly installed on an output end of the four-wheel drive transmission assembly, and a transmission belt is connected between the output pulley and the input pulley.

[0011] Further technical solution: the telescopic assembly comprises a rotating sleeve hinged on the base frame, a movable rod is slidably mounted on one end of the rotating sleeve, one end of the movable rod is hinged on the output actuator, a screw is rotatably connected to the rotating sleeve, and one end of the screw extending into the rotating sleeve is threadedly connected to the movable rod;

[0012] In order to drive the screw to rotate, the telescopic assembly also includes a reversible transmission mechanism, which is installed on the base frame. One end of the reversible transmission mechanism is transmission-connected to the other end of the input shaft, and the other end of the reversible transmission mechanism is connected to the screw. When the input shaft rotates, the reversible transmission mechanism is used to drive the screw to rotate, and the screw drives the movable rod to extend or retract into the rotating sleeve, so that the movable rod drives the output actuator to move up or down.

[0013] Further technical solution: the reversible transmission mechanism comprises a second rotating rod, a third rotating rod, a fourth rotating rod and a fifth rotating rod rotatably mounted on the base frame, a transfer input sprocket is fixedly mounted on one end of the second rotating rod, a transfer output sprocket is fixedly mounted on the other end of the input shaft extending out of the input box, and an output chain is transmission-connected between the transfer output sprocket and the transfer input sprocket;

[0014] The other end of the second rotating shaft is fixedly installed with a driving bevel gear, and the third rotating shaft is rotatably installed with a forward bevel gear and a reverse bevel gear that are relatively arranged, and the forward bevel gear and the reverse bevel gear are both meshed with the driving bevel gear, and the opposite sides of the forward bevel gear and the reverse bevel gear are fixedly connected with a driven clamping tooth, and the third rotating shaft is slidably installed with a reversing clamping member through a sliding key, and the two side surfaces of the reversing clamping member are fixedly connected with an active clamping tooth matched with the driven clamping tooth, and the active clamping tooth can be engaged with the driven clamping tooth, and the base frame is rotatably connected with a rotating pin, one end of the rotating pin is fixedly connected with a lifting fork, and one end of the lifting fork is limitably connected with the reversing clamping member through a limit block, and the other end of the rotating pin is fixedly connected with a shift handle;

[0015] The lever is rotated, and the lever drives the lifting fork to rotate through the rotating pin. The lifting fork drives the reversing clamp to move through the limit block, so that the reversing clamp is engaged with different driven clamping teeth. Then, the forward bevel gear or the reverse bevel gear drives the third rotating rod to rotate through the reversing clamp. Since the forward bevel gear and the reverse bevel gear rotate in different directions, the third rotating rod rotates in different directions, so that the height of the output actuator can be adjusted.

[0016] In order to facilitate the operation of the lifting fork, a push-pull rod (not shown in the figure) can be connected to the handle, and one end of the push-pull rod can be extended to the handlebar, so that the user can adjust the height of the output actuator at the handlebar position;

[0017] A first transmission pair is connected between the third rotating rod and the fourth rotating rod, and a second transmission pair is connected between the fourth rotating rod and the fifth rotating rod. In this embodiment, the first transmission pair is a bevel gear pair, the second transmission pair is a worm gear pair, and the fifth rotating rod is connected to one end of the screw rod through a double universal joint.

[0018] Further technical solution: A tensioning mechanism is also installed on the base frame, and the tensioning mechanism includes a fixed tube fixedly connected to the base frame, a lifting plate is slidably installed on the top of the fixed tube, a first tension spring is connected between the lifting plate and the fixed tube, a tensioning pulley is rotatably installed on the top of the lifting plate, and the tensioning pulley is connected to the transmission belt.

[0019] Further technical solution: the tensioning mechanism also includes a locking mechanism, which includes a fixed slideway fixed to the side of the fixed tube and connected to the inside of the fixed tube, a locking rack is slidably installed inside the fixed slideway, a second tension spring is connected between the locking rack and the fixed slideway, a limiting rack is embedded on the side of the lifting plate close to the locking rack, the limiting rack can mesh with the locking rack, a first strong magnet is arranged on one side of the bottom of the locking rack, a second strong magnet is arranged inside one end of the bottom of the locking rack, the second strong magnet has the same magnetic property as the first strong magnet on the opposite side, the first strong magnet can push the second strong magnet and the locking rack out, so that the locking rack and the limiting rack mesh, thereby fixing the lifting plate, preventing it from rising and falling, and avoiding the loosening of the transmission belt;

[0020] A magnetic flux opening adapted to the first strong magnet is provided on the side of the fixed slideway. The magnetic flux opening is located between the first strong magnet and the second strong magnet. The magnetic flux opening avoids weakening of the magnetic force between the first strong magnet and the second strong magnet.

[0021] Further technical solution: the locking mechanism also includes a material tray and a toggle shell, the material tray is fixedly installed on the side of the fixed slide, the first rotating rod is rotatably installed on the bottom frame, the toggle shell is fixedly connected to one end of the first rotating rod, the material tray is located inside the toggle shell, and the axis of the toggle shell coincides with the axis of the material tray, the first strong magnet is located inside the toggle shell, and a plurality of evenly distributed toggle plates are fixedly connected to the inner side wall of the first strong magnet, a material discharge channel is opened on the side of the material tray close to the toggle shell, and the toggle shell can toggle the first strong magnet into the material discharge channel at the top of the material tray through the toggle plate;

[0022] In order to prevent the first strong magnet from falling out of the toggle housing, a material-blocking round edge is provided on the side of the fixed slideway, and the material-blocking round edge closes the opening of the toggle housing;

[0023] In order to prevent the first strong magnet from falling to the bottom of the material tray again, the locking mechanism also includes a limit assembly, the limit assembly includes a stopper half ring, the stopper half ring is rotatably mounted on the material tray, a return bending spring is connected between the stopper half ring and the material tray, and a feeding notch connected to the feeding channel is provided at the bottom of the stopper half ring, the limit assembly includes two stopper assemblies, the two stopper assemblies are symmetrically mounted on both sides of the stopper half ring, the stopper assembly includes a fixing plate fixedly connected to the stopper half ring, the end side surface of the fixing plate is fixedly connected to a cross column, the side surface of the cross column is fixedly connected to a stopper bent rod, and a storage groove for the movement of the cross column and the stopper bent rod is provided on the material tray;

[0024] In order to enable the locking mechanism to automatically lock and unlock, the material blocking assembly further comprises a telescopic limit column, which is slidably mounted on one end of the horizontal column close to the toggle housing, a compression spring is connected between the telescopic limit column and the horizontal column, and one end of the telescopic limit column extending out of the horizontal column is hemispherical;

[0025] In order to be able to drive the material blocking half ring to rotate through the telescopic limiting column, a plurality of evenly distributed material blocking plates are fixedly connected to the side of the toggle housing close to the material tray, and the material blocking plates and the telescopic limiting column are staggered;

[0026] In order to drive the shell to be moved in time and reduce the operation of the staff, one end of the first rotating rod and one end of the fourth rotating rod are fixedly connected.

[0027] Compared with the prior art, the present invention has the following beneficial effects:

[0028] 1. The present invention improves the power input box assembly and sets a purely mechanically driven telescopic component, so that the output actuator can be mechanically driven without the assistance of the power system or manual adjustment by the staff. At the same time, during the trenching process, the telescopic component can also be operated to adjust the output actuator, which is more flexible and convenient to use.

[0029] 2. The present invention can make the input pulley and the output pulley always in transmission connection by setting the tensioning mechanism, without installing the transmission belt after adjusting the output actuator, and the output actuator can be adjusted to any height, which is more convenient to use;

[0030] 3. The present invention sets a locking mechanism. When adjusting the output actuator, the fourth rotating rod will first disengage the locking rack and the limiting rack to release the lock on the lifting plate. Then, under the action of the first tension spring, the tensioning wheel will always tension the transmission belt to prevent the transmission belt from loosening and falling off. After the adjustment is completed, under the repulsion of the first strong magnet and the second strong magnet, the locking rack and the limiting rack will mesh again, and then the lifting plate will be fixed to prevent the transmission belt from loosening, thereby preventing the transmission belt from slipping and improving the trenching efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 It is a schematic diagram of the overall front view structure of the present invention.

[0032] Figure 2 It is a schematic diagram of the overall rear view structure of the present invention.

[0033] Figure 3 For the present invention Figure 1 Enlarged schematic diagram at point A in the middle.

[0034] Figure 4 It is a schematic diagram of the overall partial front view structure of the present invention.

[0035] Figure 5 In the present invention Figure 4 Schematic enlarged view of part B in it.

[0036] Figure 6 Schematic side view of the overall local structure in the present invention.

[0037] Figure 7 Schematic side view cross-sectional structure of the overall local part in the present invention.

[0038] Figure 8 Schematic installation structure of the tensioning mechanism and the locking mechanism in the present invention.

[0039] Figure 9 Schematic side view structure of the locking mechanism in the present invention.

[0040] Figure 10 Schematic side view structure of the material tray in the present invention.

[0041] Figure 11 Schematic structure of the material retaining half-ring in the present invention.

[0042] Figure 12 Schematic side view cross-sectional structure of the locking mechanism in the present invention.

[0043] Figure 13 Schematic side view structure of the ditching mechanism in the present invention.

[0044] Figure 14 Schematic front view structure of the ditching mechanism in the present invention.

[0045] Figure 15 Schematic top view cross-sectional structure of the ditching mechanism in the present invention.

[0046] Figure 16 Schematic front view expanded cross-sectional structure of the output actuator in the present invention.

[0047] Figure 17 Schematic front view partial cross-sectional structure of the output actuator in the present invention.

[0048] In the attached drawings: 1. Four-wheel drive transmission assembly; 2. Rear wheel; 10. Fuel tank; 11. Telescopic assembly; 111. Screw rod; 112. Rotating sleeve; 113. Movable rod; 12. Chassis; 13. Output pulley; 14. Tensioning mechanism; 141. Tensioning pulley; 142. Fixed pipe; 143. Lifting plate; 144. First tension spring; 15. Locking mechanism; 151. Limit rack; 152. Fixed slideway; 153. Locking rack; 154. Second tension spring; 155. Dialing housing; 156. Tray; 157. Reset bending spring; 158. First rotating rod; 159. Half ring for blocking material; 1510. Dialing plate; 1511. First strong magnet; 1512. Rounding edge for blocking material; 1513. Material discharging channel; 1514. Magnetic flux port; 1515. Fixed plate; 1516. Storage groove; 1519. Cross column; 1520. Bending rod for blocking material; 1521. Telescopic limit post; 1522. Compression spring; 1523. Notch for material discharging; 1524. Dialing plate for blocking material; 16. Reversible transmission mechanism; 161. Dividing input sprocket; 162. Second rotating rod; 163. Positive rotation bevel gear; 164. Third rotating rod; 165. First transmission pair; 166. Fourth rotating rod; 167. Second transmission pair; 168. Fifth rotating rod; 169. Double universal joint; 1610. Driven cogs; 1611. Driving bevel gear; 1612. Reversing card; 1613. Limit block; 1614. Lifting shift fork; 1615. Reverse rotation bevel gear; 1616. Shifting handle; 1617. Rotating pin; 45. Vertical arm; 46. Front wheel; 47. Transmission belt; 48. Output chain;

[0049] 3. Input pulley; 4. Input shaft; 5. Input housing; 6. Driving bevel gear; 7. Engine; 8. Driven bevel gear; 9. Dividing output sprocket;

[0050] 17. Shifting fork; 18. Shifting rocker arm; 19. Shifting triple gear; 20. Intermediate driven gear; 21. Reversing fork; 22. Reversing driving gear; 23. Working shift fork shaft; 24. Transmission housing two; 25. Hollow spline shaft two; 26. First auxiliary shaft; 27. Reverse rotation intermediate gear; 28. Second auxiliary shaft; 29. Working reverse rotation driven gear; 30. Working output gear shaft; 31. Working driven gear; 32. Tool shaft housing; 33. Working end gear shaft; 34. End large gear; 35. Working housing gland; 36. Working tool shaft; 37. Ditching tool; 38. Working positive rotation driven gear; 39. Intermediate driving gear; 40. Hollow spline shaft three; 41. Working second gear; 42. Working third gear; 43. Working first gear; 44. Reversing rocker arm. Detailed implementation mode

[0051] In order to make the purpose, technical solution and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0052] The specific implementation of the present invention is described in detail below in conjunction with specific embodiments.

[0053] like Figures 1 - 17 As shown, a novel four-wheel drive micro-tillage machine with a furrowing function provided by the present invention comprises a four-wheel drive gearbox assembly 1, wherein the four-wheel drive gearbox assembly 1 is provided with a travel output shaft, and a rear wheel 2 is installed on the travel output shaft, and an engine 7 is fixedly installed on the side of the four-wheel drive gearbox assembly 1, and the output end of the engine 7 is connected to the input end of the four-wheel drive gearbox assembly 1, and an oil tank 10 is provided on the engine 7, and the output end of the oil tank 10 is connected to the oil inlet of the engine 7, and the oil tank 10 provides fuel, diesel or gasoline, for the engine 7, and a handlebar is also provided on the four-wheel drive gearbox assembly 1;

[0054] A base frame 12 is installed on the side of the four-wheel drive transmission assembly 1 away from the handlebars, and a front wheel 46 is installed at the bottom of one end of the base frame 12 away from the handlebars. A vertical arm 45 is fixedly connected to the base frame 12, and a ditching mechanism for ditching the land is hinged on the vertical arm 45. The input end of the ditching mechanism is drivingly connected to an output end of the four-wheel drive transmission assembly 1;

[0055] A telescopic component 11 is installed on the base frame 12, one end of the telescopic component 11 is connected to the ditching mechanism, and the telescopic component 11 is used to drive the ditching mechanism to rotate, so that the ditching mechanism rises or falls, and when it falls, the land can be ditched.

[0056] like Figures 1 - 2 and Figures 13 - 17 As shown, a new four-wheel drive micro-tillage machine with a furrowing function provided by the present invention, in this embodiment, the furrowing mechanism includes a power input box assembly and an output actuator, the power input box assembly is hinged on the vertical arm 45, the output actuator is installed on the side of the power input box assembly, and the output end of the power input box assembly is connected to the input end of the output actuator.

[0057] like Figures 1 - 2 and Figures 13 - 17As shown, a new type of four-wheel drive micro-tillage machine with a furrowing function provided by the present invention, in this embodiment, the power input box assembly includes an input box body 5, the input box body 5 is hinged on the base frame 12, an input shaft 4 is rotatably installed inside the input box body 5, a driving bevel gear 6 is fixedly installed on the input shaft 4, a passive bevel gear 8 is also rotatably installed inside the input box body 5, the passive bevel gear 8 is meshed with the driving bevel gear 6, and one end of the passive bevel gear 8 is connected to the input end of the output actuator.

[0058] like Figures 1 - 2 As shown, a new four-wheel drive micro-tillage machine with a furrowing function provided by the present invention is provided. In this embodiment, an input pulley 3 is fixedly installed on one end of the input shaft 4 extending out of the input housing 5, and an output pulley 13 is fixedly installed on an output end of the four-wheel drive gearbox assembly 1, and a transmission belt 47 is connected between the output pulley 13 and the input pulley 3.

[0059] The power transmission route of the output actuator is:

[0060] Route 1: engine 7—four-wheel drive gearbox assembly 1—output pulley 13, transmission belt 47, input pulley 3—input shaft 4—active bevel gear 6—passive bevel gear 8—output actuator;

[0061] The second route: engine 7—four-wheel drive transmission assembly 1—output pulley 13, transmission belt 47, input pulley 3—input shaft 4—transfer output sprocket 9—power split.

[0062] like Figures 1 - 6 As shown, a novel four-wheel drive micro-tillage machine with a furrowing function provided by the present invention is provided. In this embodiment, the telescopic assembly 11 includes a rotating sleeve 112 hinged on the base frame 12, and a movable rod 113 is slidably mounted on one end of the rotating sleeve 112. One end of the movable rod 113 is hinged on the output actuator, and a screw rod 111 is rotatably connected to the rotating sleeve 112. One end of the screw rod 111 extending into the rotating sleeve 112 is threadedly connected to the movable rod 113;

[0063] In order to drive the screw 111 to rotate, the telescopic assembly 11 also includes a reversible transmission mechanism 16, which is installed on the base frame 12. One end of the reversible transmission mechanism 16 is transmission-connected to the other end of the input shaft 4, and the other end of the reversible transmission mechanism 16 is connected to the screw 111. When the input shaft 4 rotates, the reversible transmission mechanism 16 is used to drive the screw 111 to rotate, and the screw 111 drives the movable rod 113 to extend or retract into the rotating sleeve 112, so that the movable rod 113 drives the output actuator to move up or down.

[0064] like Figures 1 - 6As shown, a novel four-wheel drive micro-tillage machine with a furrowing function provided by the present invention is provided. In this embodiment, the reversible transmission mechanism 16 includes a second rotating rod 162, a third rotating rod 164, a fourth rotating rod 166 and a fifth rotating rod 168 rotatably mounted on the chassis 12, a transfer input sprocket 161 is fixedly mounted on one end of the second rotating rod 162, a transfer output sprocket 9 is fixedly mounted on the other end of the input shaft 4 extending out of the input box 5, and an output chain 48 is transmission-connected between the transfer output sprocket 9 and the transfer input sprocket 161;

[0065] The other end of the second rotating rod 162 is fixedly installed with a driving bevel gear 1611, and the third rotating rod 164 is rotatably installed with a forward bevel gear 163 and a reverse bevel gear 1615 which are arranged opposite to each other. The forward bevel gear 163 and the reverse bevel gear 1615 are both meshed with the driving bevel gear 1611, and the opposite sides of the forward bevel gear 163 and the reverse bevel gear 1615 are fixedly connected with a driven tooth 1610, and a reversing card 1610 is slidably installed on the third rotating rod 164 through a sliding key. 612, both sides of the reversing card 1612 are fixedly connected with active teeth adapted to the driven teeth 1610, and the active teeth can be engaged with the driven teeth 1610, and the base frame 12 is rotatably connected with a rotating pin 1617, one end of the rotating pin 1617 is fixedly connected with a lifting fork 1614, one end of the lifting fork 1614 is limitedly connected with the reversing card 1612 through a limiting block 1613, and the other end of the rotating pin 1617 is fixedly connected with a lever 1616;

[0066] The handle 1616 is rotated, and the handle 1616 drives the lifting fork 1614 to rotate through the rotating pin 1617. The lifting fork 1614 drives the reversing clamp 1612 to move through the limit block 1613, so that the reversing clamp 1612 is engaged with different driven clamps 1610, and the forward bevel gear 163 or the reverse bevel gear 1615 drives the third rotating rod 164 to rotate through the reversing clamp 1612. Since the forward bevel gear 163 and the reverse bevel gear 1615 have different rotation directions, the rotation direction of the third rotating rod 164 is also different, so that the height of the output actuator can be adjusted;

[0067] In order to facilitate the operation of the lifting fork 1614, a push-pull rod (not shown in the figure) can be connected to the handle 1616, and one end of the push-pull rod can be extended to the handlebar, so that the user can adjust the height of the output actuator at the handlebar position;

[0068] A first transmission pair 165 is connected between the third rotating rod 164 and the fourth rotating rod 166, and a second transmission pair 167 is connected between the fourth rotating rod 166 and the fifth rotating rod 168. In this embodiment, the first transmission pair 165 is a bevel gear pair, the second transmission pair 167 is a worm gear pair, and the fifth rotating rod 168 is connected to one end of the screw 111 through a double universal joint 169.

[0069] When the four-wheel drive transmission assembly 1 drives the input shaft 4 to rotate through the output pulley 13, the transmission belt 47 and the input pulley 3, the input shaft 4 also drives the transfer output sprocket 9 to rotate, and the transfer output sprocket 9 drives the transfer input sprocket 161 to rotate through the output chain 48, and the transfer input sprocket 161 drives the second rotating rod 162 and the driving bevel gear 1611 to rotate, and the driving bevel gear 1611 drives the forward bevel gear 163 and the reverse bevel gear 1615 to rotate synchronously, and the dial handle 1616 is turned, and the dial handle 1616 drives the lifting fork 1614 to rotate, so that the lifting fork 1614 drives the reversing clamp 1612 to engage with different driven clamping teeth 1610, so that the forward bevel gear 163 or the reverse bevel gear 1615 can drive the reversing clamp 1612 to rotate, and make the rotation directions different, so that the output actuator can be driven to rise or fall;

[0070] The reversing card 1612 drives the third rotating rod 164 to rotate, the third rotating rod 164 can drive the fourth rotating rod 166 to rotate through the first transmission pair 165, the fourth rotating rod 166 can drive the fifth rotating rod 168 to rotate through the second transmission pair 167, the fifth rotating rod 168 drives the screw 111 to rotate through the double universal joint 169, and when the movable rod 113 drives the output actuator to rotate, the double universal joint 169 can ensure the connection between the screw 111 and the fifth rotating rod 168 to prevent the fifth rotating rod 168 from affecting the movement of the rotating sleeve 112.

[0071] like Figures 1 - 3 and Figures 6 - 12As shown in the figure, a new type of four-wheel drive micro-tiller with a ditching function provided by the present invention. When adjusting the output actuator, since the input pulley 3 does not rotate around the output pulley 13, when the output actuator descends, the distance between the input pulley 3 and the output pulley 13 is shortened, and the transmission belt 47 on the input pulley 3 and the output pulley 13 will become loose. Therefore, after the adjustment is completed, the staff needs to re-adjust or install the transmission belt 47, which is rather troublesome to use. In this embodiment, a tensioning mechanism 14 is further installed on the chassis 12. The tensioning mechanism 14 includes a fixed pipe 142 fixedly connected to the chassis 12. The top end of the fixed pipe 142 is slidably installed with a lifting plate 143. A first tension spring 144 is connected between the lifting plate 143 and the fixed pipe 142. The top end of the lifting plate 143 is rotatably installed with a tensioning pulley 141. The tensioning pulley 141 is in transmission connection with the transmission belt 47.

[0072] When adjusting the output actuator, the first tension spring 144 will drive the lifting plate 143 to rise and fall. The lifting plate 143 tightens the transmission belt 47 through the tensioning pulley 141, thereby preventing the transmission belt 47 from loosening or affecting the adjustment of the output actuator, and there is no need to re-adjust the transmission belt 47.

[0073] As Figures 1 - 3 and Figures 6 - 12 As shown in the figure, a new type of four-wheel drive micro-tiller with a ditching function provided by the present invention. Due to the existence of the first tension spring 144, the tensioning pulley 141 will become unstable. When encountering harder soil, slippage may occur between the transmission belt 47 and the output pulley 13, affecting the ditching efficiency. Therefore, in this embodiment, the tensioning mechanism 14 further includes a locking mechanism 15. The locking mechanism 15 includes a fixed slideway 152 fixed on the side of the fixed pipe 142 and communicating with the inside of the fixed pipe 142. A locking rack 153 is slidably installed inside the fixed slideway 152. A second tension spring 154 is connected between the locking rack 153 and the fixed slideway 152. A limiting rack 151 is embedded on the side of the lifting plate 143 close to the locking rack 153. The limiting rack 151 can engage with the locking rack 153. One side of the bottom of the locking rack 153 is provided with a first strong magnet 1511. A second strong magnet is arranged inside one end of the bottom of the locking rack 153. The magnetic properties of the second strong magnet and the opposite side of the first strong magnet 1511 are the same. The first strong magnet 1511 can push out the second strong magnet and the locking rack 153, so that the locking rack 153 engages with the limiting rack 151, thereby fixing the lifting plate 143 and preventing it from rising and falling, avoiding the loosening of the transmission belt 47;

[0074] A magnetic flux opening 1514 adapted to the first strong magnet 1511 is opened on the side of the fixed slide 152. The magnetic flux opening 1514 is located between the first strong magnet 1511 and the second strong magnet. The magnetic flux opening 1514 avoids weakening of the magnetic force between the first strong magnet 1511 and the second strong magnet.

[0075] like Figures 1 - 3 and Figures 6 - 12 As shown, a new type of four-wheel drive micro-tillage machine with a furrowing function provided by the present invention is provided. When adjusting the output actuator, the lifting plate 143 needs to be in an active state. In order to release the locking rack 153 from locking the limiting rack 151, in this embodiment, the locking mechanism 15 also includes a material tray 156 and a toggle shell 155. The material tray 156 is fixedly mounted on the side of the fixed slide 152. A first rotating rod 158 is rotatably mounted on the base frame 12. The toggle shell 155 is fixedly connected to one end of the first rotating rod 158. The material tray 156 is located inside the toggle housing 155, and the axis of the toggle housing 155 coincides with the axis of the material tray 156. The first strong magnet 1511 is located inside the toggle housing 155. A plurality of evenly distributed toggle plates 1510 are fixedly connected to the inner side wall of the first strong magnet 1511. A material discharge channel 1513 is provided on the side of the material tray 156 close to the toggle housing 155. The toggle housing 155 can toggle the first strong magnet 1511 into the material discharge channel 1513 at the top of the material tray 156 through the toggle plates 1510.

[0076] In order to prevent the first strong magnet 1511 from falling out of the toggle housing 155, a material-blocking round edge 1512 is provided on the side of the fixed slideway 152, and the material-blocking round edge 1512 closes the opening of the toggle housing 155;

[0077] In order to prevent the first strong magnet 1511 from falling to the bottom of the material tray 156 again, the locking mechanism 15 also includes a limiting assembly, which includes a blocking half ring 159, which is rotatably mounted on the material tray 156, and a return spring 157 is connected between the blocking half ring 159 and the material tray 156. A material discharge notch 1523 connected to the material discharge channel 1513 is provided at the bottom of the blocking half ring 159. The limiting assembly includes two blocking assemblies, which are symmetrically mounted on both sides of the blocking half ring 159, respectively. The blocking assembly includes a fixing plate 1515 fixedly connected to the blocking half ring 159, a cross column 1519 is fixedly connected to the side of the end of the fixing plate 1515, and a blocking bent rod 1520 is fixedly connected to the side of the cross column 1519. A storage groove 1516 for the movement of the cross column 1519 and the blocking bent rod 1520 is provided on the material tray 156;

[0078] In order to enable the locking mechanism 15 to automatically lock and unlock, the material blocking assembly further includes a telescopic limit column 1521, which is slidably mounted on one end of the horizontal column 1519 close to the toggle housing 155, and a compression spring 1522 is connected between the telescopic limit column 1521 and the horizontal column 1519, and one end of the telescopic limit column 1521 extending out of the horizontal column 1519 is hemispherical;

[0079] In order to drive the material blocking half ring 159 to rotate through the telescopic limiting column 1521, a plurality of evenly distributed material blocking plates 1524 are fixedly connected to the side of the shifting housing 155 close to the material tray 156, and the material blocking plates 1524 are staggered with the telescopic limiting column 1521;

[0080] In order to drive the toggle housing 155 in time and reduce the operation of the staff, one end of the first rotating rod 158 and one end of the fourth rotating rod 166 are fixedly connected.

[0081] When the output actuator is adjusted, the fourth rotating rod 166 will drive the screw 111 to rotate through the second transmission pair 167. At the same time, the fourth rotating rod 166 will also drive the first rotating rod 158 to rotate. The first rotating rod 158 drives the toggle housing 155 to rotate. The toggle housing 155 drives the first strong magnet 1511 to move through the toggle plate 1510, so that the first strong magnet 1511 and the second strong magnet are misaligned. Under the elastic force of the second tension spring 154, the locking rack 153 retracts into the fixed slide 152, thereby releasing its lock on the limit rack 151 and the lifting plate 143. At the same time, the toggle housing 155 also The material blocking paddle 1524 will be driven to rotate, and the material blocking paddle 1524 will drive the cross column 1519 and the material blocking half ring 159 to rotate through the telescopic limit column 1521, so that the material blocking bent rod 1520 extends into the material discharge channel 1513. When the material blocking half ring 159 is blocked by the material tray 156, the material blocking paddle 1524 will squeeze the telescopic limit column 1521 into the cross column 1519 and continue to move over the cross column 1519. When the toggle housing 155 rotates at a faster speed, the material blocking paddle 1524 can keep the material blocking bent rod 1520 in the material discharge channel 1513, so that it will not return to the storage groove 1516.

[0082] When the paddle 1510 drives the first strong magnet 1511 to move to the top of the material tray 156, the first strong magnet 1511 will fall into the material discharge channel 1513, and then the first strong magnet 1511 will be blocked by the material blocking bent rod 1520, so that it cannot fall, thereby preventing the first strong magnet 1511 from pushing the locking rack 153 away and preventing the locking rack 153 from locking the limit rack 151;

[0083] After the output actuator is adjusted, the fourth rotating rod 166 and the first rotating rod 158 stop rotating, and the toggle shell 155 stops rotating. Under the elastic force of the reset bending spring 157 and the gravity of the first strong magnet 1511, the material-blocking bent rod 1520 retreats to the inside of the storage groove 1516 again, and the first strong magnet 1511 passes over the material-blocking bent rod 1520 and falls to the bottom of the toggle shell 155. The first strong magnet 1511 repels the second strong magnet again, so that the locking rack 153 and the limiting rack 151 engage again to lock the lifting plate 143, thereby avoiding the loosening and slipping of the transmission belt 47 and improving the trenching efficiency.

[0084] In order to prevent the movement of the telescopic assembly 11 , the reversible transmission mechanism 16 and the locking mechanism 15 from being disrupted by the soil, a protective cover may be provided on the base frame 12 to protect the telescopic assembly 11 , the reversible transmission mechanism 16 and the locking mechanism 15 .

[0085] The output actuator can be any type of trenching output device in the prior art, such as Figures 13 - 17 As shown, a novel four-wheel drive micro-tillage machine with a furrowing function provided by the present invention is provided. In this embodiment, the output actuator includes a second gearbox body 24, and the second gearbox body 24 is installed on the side of the input box body 5. A secondary first shaft 26, a secondary second shaft 28 and a working output gear shaft 30 are rotatably installed inside the second gearbox body 24. The secondary first shaft 26, the secondary second shaft 28 and the working output gear shaft 30 are arranged in a triangle, and one end of the secondary first shaft 26 is fixedly installed with one end of the passive bevel gear 8;

[0086] A shift triple gear 19 is slidably mounted on the auxiliary first shaft 26 through splines. Three gear positions gears with different diameters are provided on the shift triple gear 19. A hollow spline shaft three 40 is rotatably mounted on the working output gear shaft 30. A working second gear 41, a working third gear 42, and a working first gear 43 are fixedly mounted on the hollow spline shaft three 40. The working second gear 41, the working third gear 42, and the working first gear 43 can respectively mesh with the three gear position gears on the shift triple gear 19, thereby realizing the switching of three working gear positions. A transition driving gear 39 is also fixedly mounted on the hollow spline shaft three 40. A hollow spline shaft two 25 is rotatably mounted on the auxiliary first shaft 26. A transition driven gear 20 is fixedly mounted on the hollow spline shaft two 25. The transition driven gear 20 and the transition driving gear 39 are always meshed. A reversing driving gear 22 is also slidably mounted on the hollow spline shaft two 25 through splines. A reverse rotation intermediate gear 27 is fixedly mounted on the auxiliary second shaft 28. The reverse rotation intermediate gear 27 can mesh with the reversing driving gear 22 to realize the reverse rotation of the working tool. A working reverse rotation driven gear 29 and a working forward rotation driven gear 38 are also fixedly mounted on the working output gear shaft 30. The working reverse rotation driven gear 29 is always meshed with the reverse rotation intermediate gear 27. The working forward rotation driven gear 38 can mesh with the reversing driving gear 22 to realize the forward rotation of the working tool;

[0087] A working fork shaft 23 is also fixedly mounted on the gearbox body two 24. A shift fork 17 and a reversing fork 21 are slidably mounted on the working fork shaft 23. The shift fork 17 is limit-connected to the shift triple gear 19, and the shift fork 17 can drive the shift triple gear 19 to slide linearly synchronously. The reversing fork 21 is limit-connected to the reversing driving gear 22, and the reversing fork 21 can drive the reversing driving gear 22 to slide linearly synchronously. A shift rocker arm 18 and a reversing rocker arm 44 are rotatably mounted on the gearbox body two 24. One end of the shift rocker arm 18 is rotatably mounted with the shift fork 17. One end of the reversing rocker arm 44 is rotatably mounted with the reversing fork 21. Both the shift fork 17 and the driving bevel gear 6 are eccentric rocker structures;

[0088] A cutter shaft housing 32 is fixedly installed on the side of the second transmission housing 24. A working end gear shaft 33 is rotatably installed on the cutter shaft housing 32. A working driven gear 31 is fixedly installed at one end of the working end gear shaft 33 close to the second transmission housing 24. The working driven gear 31 and the bevel gear on the working output gear shaft 30 are always meshed. A working cutter shaft 36 is rotatably installed on the cutter shaft housing 32. A large end gear 34 is fixedly installed at one end of the working cutter shaft 36 located inside the cutter shaft housing 32. The large end gear 34 and the bevel gear on the working end gear shaft 33 are always meshed. Grooving cutters 37 are fixedly installed at both ends of the working cutter shaft 36 extending out of the cutter shaft housing 32;

[0089] To facilitate the replacement of the grooving cutters 37 and the working cutter shaft 36, a maintenance opening is provided on the side of the cutter shaft housing 32. A working housing gland 35 is fixedly installed on the side of the cutter shaft housing 32. The working housing gland 35 seals the maintenance opening.

[0090] Working gears; three low-speed front rotations + three high-speed rear rotations

[0091] Speed change and reversing output route: The shift triple gear 19 can be meshed with the first working gear 43, the second working gear 41, and the third working gear 42 on the working output gear shaft 30 respectively, so as to realize the output of the rotational speeds of three working gears. The reversing rocker arm 44 drives the reversing fork 21 to move. The reversing fork 21 drives the reversing driving gear 22 to be meshed with the working forward rotation driven gear 38 to realize the forward rotation output;

[0092] Transmission route for forward rotation output of three working gears: Driven bevel gear 8—First auxiliary shaft 26—Shift triple gear 19—Second working gear 41 (Third working gear 42, Third working gear 42, First working gear 43, First working gear 43)—Hollow spline shaft three 40—Transition driving gear 39—Transition driven gear 20—Hollow spline shaft two 25—Reversing driving gear 22—Working forward rotation driven gear 38—Working output gear shaft 30—Working driven gear 31—Working end gear shaft 33—Large end gear 34—Working cutter shaft 36—Grooving cutters 37;

[0093] When the grooving cutters 37 are stuck, the reversing rocker arm 44 can be driven to drive the reversing driving gear 22 to move, so that the reversing driving gear 22 is meshed with the reverse rotation intermediate gear 27 to realize the reverse rotation output:

[0094] Three working gear positions reverse rotation output transmission route: driven bevel gear 8 — auxiliary first shaft 26 — shift triple gear 19 — working second gear 41 (working third gear 42, working first gear 43) — hollow spline shaft three 40 — transition drive gear 39 — transition driven gear 20 — hollow spline shaft two 25 — reversing drive gear 22 — reverse rotation intermediate gear 27 — working reverse rotation driven gear 29 — working output gear shaft 30 — working driven gear 31 — working end gear shaft 33 — end large gear 34 — working tool shaft 36 — ditching tool 37.

[0095] The above are only the preferred embodiments of the present invention, and are not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

[0096] In addition, it should be understood that although this specification is described according to the embodiments, not every embodiment only contains an independent technical solution. This narrative way of the specification is only for clarity. Those skilled in the art should regard the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A novel four-wheel drive micro-tillage machine with a furrowing function, comprising a four-wheel drive gearbox assembly, the four-wheel drive gearbox assembly is provided with a travel output shaft, a rear wheel is installed on the travel output shaft, an engine is fixedly installed on the side of the four-wheel drive gearbox assembly, the output end of the engine is connected to the input end of the four-wheel drive gearbox assembly, the engine is provided with a fuel tank, and the four-wheel drive gearbox assembly is also provided with a handlebar, characterized in that: A chassis is installed on the side of the four-wheel drive gearbox assembly away from the handlebars, a front wheel is installed at the bottom of one end of the chassis away from the handlebars, a vertical arm is fixedly connected to the chassis, a ditching mechanism for ditching the land is hinged on the vertical arm, and an input end of the ditching mechanism is drivingly connected to an output end of the four-wheel drive gearbox assembly; A telescopic component is installed on the base frame, one end of the telescopic component is connected to the ditching mechanism, and the telescopic component is used to drive the ditching mechanism to rotate.

2. The novel four-wheel drive micro-tillage machine with ditching function according to claim 1 is characterized in that: The trenching mechanism includes a power input box assembly and an output actuator. The power input box assembly is hinged on the vertical arm, and the output actuator is installed on the side of the power input box assembly. The output end of the power input box assembly is connected to the input end of the output actuator.

3. The novel four-wheel drive micro-tillage machine with ditching function according to claim 2 is characterized in that: The power input box assembly includes an input box body, which is hinged on the base frame. An input shaft is rotatably installed inside the input box body, and a driving bevel gear is fixedly installed on the input shaft. A passive bevel gear is also rotatably installed inside the input box body, and the passive bevel gear is meshed with the driving bevel gear. One end of the passive bevel gear is connected to the input end of the output actuator.

4. The novel four-wheel drive micro-tillage machine with ditching function according to claim 3 is characterized in that: An input pulley is fixedly mounted on one end of the input shaft extending out of the input housing, an output pulley is fixedly mounted on an output end of the four-wheel drive gearbox assembly, and a transmission belt is connected between the output pulley and the input pulley.

5. The novel four-wheel drive micro-tillage machine with furrowing function according to claim 3 is characterized in that: The telescopic assembly comprises a rotating sleeve hinged on the base frame, a movable rod is slidably mounted on one end of the rotating sleeve, one end of the movable rod is hinged on the output actuator, a screw is rotatably connected to the rotating sleeve, and one end of the screw extending into the rotating sleeve is threadedly connected to the movable rod; The telescopic assembly also includes a reversible transmission mechanism, which is installed on the base frame. One end of the reversible transmission mechanism is transmission-connected to the other end of the input shaft, and the other end of the reversible transmission mechanism is connected to the screw. When the input shaft rotates, the reversible transmission mechanism is used to drive the screw to rotate.

6. The novel four-wheel drive micro-tillage machine with furrowing function according to claim 5 is characterized in that: The reversible transmission mechanism comprises a second rotating rod, a third rotating rod, a fourth rotating rod and a fifth rotating rod rotatably mounted on the base frame, a transfer input sprocket is fixedly mounted on one end of the second rotating rod, a transfer output sprocket is fixedly mounted on the other end of the input shaft extending out of the input box, and an output chain is transmission-connected between the transfer output sprocket and the transfer input sprocket; The other end of the second rotating rod is fixedly installed with a driving bevel gear, and the third rotating rod is rotatably installed with a forward bevel gear and a reverse bevel gear that are relatively arranged, and the forward bevel gear and the reverse bevel gear are both meshed with the driving bevel gear, and the opposite sides of the forward bevel gear and the reverse bevel gear are fixedly connected with a driven clamping tooth. The second rotating rod is slidably installed with a reversing clamping member, and the two side surfaces of the reversing clamping member are fixedly connected with an active clamping tooth matched with the driven clamping tooth, and the active clamping tooth can be engaged with the driven clamping tooth. The base frame is rotatably connected with a rotating pin, one end of the rotating pin is fixedly connected with a lifting fork, and one end of the lifting fork is limitably connected to the reversing clamping member through a limit block. The other end of the rotating pin is fixedly connected with a shift handle; A first transmission pair is connected between the third rotating rod and the fourth rotating rod, a second transmission pair is connected between the fourth rotating rod and the fifth rotating rod, and the fifth rotating rod is connected to one end of the screw rod through a double universal joint.

7. The novel four-wheel drive micro-tillage machine with furrowing function according to claim 6 is characterized in that: The base frame is also provided with a tensioning mechanism, which includes a fixed tube fixedly connected to the base frame, a lifting plate slidably installed on the top of the fixed tube, a first tension spring connected between the lifting plate and the fixed tube, a tensioning pulley rotatably installed on the top of the lifting plate, and the tensioning pulley is connected to the transmission belt.

8. The novel four-wheel drive micro-tillage machine with furrowing function according to claim 7 is characterized in that: The tensioning mechanism also includes a locking mechanism, which includes a fixed slide fixed to the side of the fixed tube and connected to the inside of the fixed tube, a locking rack is slidably installed inside the fixed slide, a second tension spring is connected between the locking rack and the fixed slide, a limiting rack is embedded in the side of the lifting plate close to the locking rack, the limiting rack can engage with the locking rack, a first strong magnet is provided on one side of the bottom of the locking rack, a second strong magnet is provided inside one end of the bottom of the locking rack, and the second strong magnet has the same magnetic property as the opposite side of the first strong magnet.

9. The novel four-wheel drive micro-tillage machine with furrowing function according to claim 8 is characterized in that: The locking mechanism also includes a material tray and a toggle shell, the material tray is fixedly mounted on the side of the fixed slide, a first rotating rod is rotatably mounted on the bottom frame, the toggle shell is fixedly connected to one end of the first rotating rod, the material tray is located inside the toggle shell, and the axis of the toggle shell coincides with the axis of the material tray, the first strong magnet is located inside the toggle shell, a plurality of evenly distributed toggle plates are fixedly connected to the inner side wall of the first strong magnet, and a material discharge channel is opened on the side of the material tray close to the toggle shell; The side of the fixed slideway is provided with a material-blocking round edge for closing the opening of the toggle housing; The locking mechanism also includes a limit assembly, the limit assembly includes a stopper half ring, the stopper half ring is rotatably mounted on the material tray, a return bending spring is connected between the stopper half ring and the material tray, the limit assembly includes two stopper assemblies, the two stopper assemblies are symmetrically mounted on both sides of the stopper half ring, the stopper assembly includes a fixed plate fixedly connected to the stopper half ring, a cross column is fixedly connected to the side surface of the end of the fixed plate, a stopper bent rod is fixedly connected to the side surface of the cross column, and a storage groove for the movement of the cross column and the stopper bent rod is opened on the material tray; The material blocking assembly also includes a telescopic limit column, which is slidably mounted on one end of the horizontal column close to the toggle housing, a compression spring is connected between the telescopic limit column and the horizontal column, and one end of the telescopic limit column extending out of the horizontal column is hemispherical; A plurality of evenly distributed material blocking plates are fixedly connected to the side of the toggle housing close to the material tray, and the material blocking plates and the telescopic limiting columns are staggeredly distributed; One end of the first rotating rod is fixedly connected to one end of the fourth rotating rod.

Images