Multifunctional double-wheel cultivator

Abstract

The invention discloses a multifunctional double-wheel cultivator which comprises a ploughing frame, an adjusting bin is arranged at the rear end of the upper surface of the ploughing frame, moving wheels which are symmetrically distributed are arranged at the lower end of the ploughing frame, and the multifunctional double-wheel cultivator further comprises a wheel distance adjusting mechanism, a connecting mechanism, a supporting mechanism and a driving mechanism. The wheel distance adjusting mechanism comprises sliding grooves, sliding frames, rotating cylinders and a driven shaft, the sliding grooves are evenly formed in the bottom wall of the adjusting bin, the sliding frames are slidably connected to the left end and the right end among the three sliding grooves, the rotating cylinders are rotatably connected to the lower ends of the two sliding frames through bearings, and the driven shaft is rotatably connected to the bottom end of a first frame body at the lower end of the ploughing frame. According to the multifunctional double-wheel cultivator, the distance between the moving wheels can be rapidly and stably adjusted, meanwhile, stable self-locking can be achieved through the driving unit, rapid and stable supporting of the cultivator is achieved while work of the cultivator is not affected by the supporting mechanism, and the connecting requirements of cultivation components of different specifications can be met.

Description

Technical Field

[0001] The present invention relates to the technical field of tilling machines, and particularly to a multifunctional two-wheel tilling machine. Background Art

[0002] The multifunctional two-wheel tilling machine is driven by a diesel engine to a pulley, and then drives the driving wheels for tilling. The engine generates power, transmits the power to the transmission device, and then transmits it to the tilling device. The plow blades or rotary tillage knives of the tilling device turn over the land and loosen the soil, making the land more suitable for planting crops;

[0003] In the prior art: The patent with the authorization publication number CN104272899A discloses a multifunctional two-wheel tilling machine, including: a diesel engine, a diesel engine base, a base assembly, a stand, a first stand wire, a driving wheel, a locking nut, a spring washer, a flat washer, a towing frame, a double-tube plow assembly, a steering wire, a wire adjusting bracket, a steering handle, an armrest, an accelerator control handle, a clutch instrument operating handle, a gear shift lever, a clutch wire, a second stand wire, a center frame, a speed change gearbox, an accelerator wire, a V-belt pulley, a pulley guard, a V-belt;

[0004] Such multifunctional two-wheel tilling machines have some problems. For example, the distance between the moving wheels is fixed and cannot quickly and effectively adapt to the tilling spacing requirements of different crops, restricting the convenience of the multifunctional two-wheel tilling machine in different working environments. At the same time, the fixed position of the support unit affects the continuity of the tilling machine's movement during the tilling process of the multifunctional two-wheel tilling machine. It may cause the tilling machine to stop due to the obstruction of obstacles. The connection frame of the tilling components has a fixed specification and can only be connected to tilling components of a specific specification, and cannot be quickly and stably connected to different specification tilling components according to the tilling requirements of the land. Summary of the Invention

[0005] The technical problem to be solved by the present invention is to overcome the existing defects and provide a multifunctional two-wheel tilling machine that can achieve rapid and stable adjustment of the moving wheel spacing. At the same time, the driving unit can achieve stable self-locking, the support mechanism can achieve rapid and stable support of the tilling machine without affecting its work, and can meet the connection requirements of different specification agricultural tools, effectively solving the problems in the background art.

[0006] To achieve the above object, the present invention provides the following technical solution: A multifunctional two-wheel tilling machine, including a tilling frame, an adjustment bin is arranged at the rear end of the upper surface of the tilling frame, symmetrically distributed moving wheels are arranged at the lower end of the tilling frame, and further includes a wheel spacing adjustment mechanism, a connection mechanism, a support mechanism and a driving mechanism;

[0007] Wheel spacing adjustment mechanism: It includes a chute, a sliding frame, a rotating cylinder and a driven shaft. The chutes are evenly arranged on the bottom wall of the adjustment bin. Sliding frames are slidably connected to both the left and right ends between the three chutes. Rotating cylinders are rotatably connected to the lower ends of both sliding frames through bearings. The driven shaft is rotatably connected to the bottom end of the first frame at the lower end of the tilling frame. Symmetrically distributed rib grooves are arranged inside the rotating cylinders. Symmetrically distributed ribs are fixedly connected to both the left and right ends of the driven shaft. The ribs are slidably connected to the laterally adjacent rib grooves.

[0008] Connection mechanism: It is arranged at the rear end of the tilling frame;

[0009] Support mechanism: It is arranged at the front side of the bottom end of the tilling frame;

[0010] Drive mechanism: It is arranged at the rear end of the adjustment bin. The drive mechanism is used to drive the wheel spacing adjustment mechanism, which can achieve rapid and stable adjustment of the moving wheel spacing. At the same time, the drive unit can achieve stable self-locking. The support mechanism can achieve rapid and stable support of the tilling machine without affecting the operation of the tilling machine, and can meet the connection requirements of different specifications of farm tools.

[0011] Furthermore, the wheel spacing adjustment mechanism further includes a rotating shaft, a gear, a sliding plate and a sliding cylinder. The rotating shaft is rotatably connected to the upper end of the adjustment bin. A gear is fixedly connected to the lower end of the rotating shaft. The sliding plates are respectively fixedly connected to the rear ends of the right surfaces of the left sliding frame and the front ends of the left surfaces of the right sliding frame. The sliding cylinders are respectively fixedly connected to the front ends of the right surfaces of the left sliding frame and the rear ends of the left surfaces of the right sliding frame. The sliding cylinders are slidably connected to the laterally adjacent sliding plates. Rack plates are fixedly connected to the opposite inner surfaces of the two sliding plates. Both rack plates are meshed with the gear to achieve adjustment of the spacing between the two moving wheels.

[0012] Furthermore, the connection mechanism includes a T-shaped frame, a sliding cavity, a sliding seat and a connection seat. The T-shaped frame is fixedly connected to the lower end of the rear surface of the tilling frame. Three sliding cavities are arranged at the lower end of the T-shaped frame. Slide openings are arranged at the rear ends of the two sliding cavities located inside the cross bar of the T-shaped frame. Sliding seats are slidably connected between the slide openings and the longitudinally adjacent sliding cavities. Connection seats are fixedly connected to the rear ends of the sliding seats. A fixed connection seat is fixedly connected to the rear end of the lower surface of the T-shaped frame. The connection seat and the fixed connection seat are cooperatively installed with external tilling components to achieve position adjustment of the connection seat and meet the continuous requirements of different specifications of tilling components.

[0013] Furthermore, the connection mechanism further includes an adjustment seat, a connecting rod and a screw rod. The adjustment seat is slidably connected inside the sliding cavity located inside the vertical rod of the T-shaped frame. The connecting rods are rotatably connected to the lower ends of the sliding seats. The front ends of the connecting rods are rotatably connected to the lower ends of the adjustment seat. A screw rod is rotatably connected inside the longitudinally distributed sliding cavity. The middle part of the screw rod is threadedly connected to the inside of the adjustment seat to provide driving force for the position adjustment of the connection seat.

[0014] Furthermore, the supporting mechanism includes a support, a support handle, a torsion spring, a support rod and a limit rod. The support is symmetrically fixedly connected to the rear end of the lower surface of the plowing frame, a fixed shaft is fixedly connected between the two supports, and the left and right ends of the outer surface of the fixed shaft are rotatably connected, the lower end between the two support handles is fixedly connected to the support rod, and the upper ends of the two support handles are provided with bayonet holes, the limit rod is fixedly connected to the rear end of the lower surface of the plowing frame, and the two bayonet holes are respectively engaged with the corresponding ends of the limit rod, and torsion springs are fixedly connected between the support handle and the laterally adjacent supports, and the torsion springs are movably sleeved on the outer surface of the fixed shaft to assist in achieving stable support of the plowing frame.

[0015] Furthermore, the driving mechanism includes a worm wheel, a worm, an annular groove, a driving plate, a driving handle, a spring and a limiting gear, the worm wheel is fixedly connected to the upper end of the rotating shaft, the worm is rotatably connected to the right end of the adjusting bin, the worm and the worm wheel are meshingly connected, the rear end of the worm is fixedly connected to the driving plate, the middle part of the driving handle is slidingly connected to the lower end of the driving plate, the front end of the driving handle is fixedly connected to the limiting gear, a spring is fixedly connected between the limiting gear and the driving plate, the spring is movably sleeved on the outer surface of the driving handle, the annular groove is arranged in the middle part of the rear side surface of the adjusting bin, the inside of the annular groove is provided with evenly distributed tooth grooves, the teeth of the limiting gear are all plugged into the radially adjacent gears, so as to provide driving force for the wheel spacing adjustment mechanism, and at the same time can realize its own rapid self-locking.

[0016] Furthermore, the ends of the rotating drum away from the center of the tilling frame are fixedly connected to a fixing plate, the ends of the two fixing plates opposite to each other are fixedly connected to evenly distributed fixing screws, the interior of the moving wheel is provided with evenly distributed sockets, the outer surfaces of the fixing screws are plugged into the interior of radially adjacent sockets, and the ends of the fixing screws away from the center of the tilling frame are threadedly connected to nuts, thereby achieving stable installation of the moving wheel.

[0017] Furthermore, a diesel engine is provided at the front end of the upper surface of the plowing frame, a gearbox 1 is provided in the middle part of the upper surface of the plowing frame, the right end of the diesel engine output shaft is fixedly connected to a driving pulley, the right end of the power input shaft of the gearbox 1 is fixedly connected to a transmission pulley 2, the driving pulley and the transmission pulley 2 are connected through a transmission belt 1, the left end of the power output shaft of the gearbox 1 is fixedly connected to a transmission pulley 3, the lower end of the plowing frame is rotatably connected to a transmission shaft 2, the left end of the transmission shaft 2 is fixedly connected to a transmission pulley 4, the transmission pulley 3 and the transmission pulley 4 are connected through a transmission belt 2, the middle part of the transmission shaft 2 is fixedly connected to a transmission pulley 1, the middle part of the driven shaft is fixedly connected to a driven pulley, the driven pulley and the transmission pulley 1 are connected through a transmission belt 3, providing driving force for the movement of the tiller.

[0018] Further, a driving bevel gear is fixedly connected to the right end of the second transmission shaft. The first transmission shaft is rotatably connected to the right end of the lower surface of the tilling frame. A first transmission bevel gear is fixedly connected to the front end of the first transmission shaft. The driving bevel gear and the first transmission bevel gear are meshed and connected. A second transmission bevel gear is fixedly connected to the rear end of the first transmission shaft. A second gearbox is arranged at the rear end of the lower surface of the tilling frame. A driven bevel gear is fixedly connected to the right end of the power input shaft of the second gearbox. The driven bevel gear and the second transmission bevel gear are meshed and connected. The power output shaft of the second gearbox is cooperatively installed with the power input end of an external tilling component to provide driving force for the external tilling component.

[0019] Further, a toolbox is arranged at the upper end of the adjustment bin, and a handle is fixedly connected to the rear end of the tilling frame, which is convenient for personnel to use the tiller.

[0020] Compared with the prior art, the beneficial effects of the present invention are as follows: This multifunctional two-wheel tiller has the following advantages:

[0021] 1. The worm and worm gear mechanism is driven by a driving handle, and then the gear acts on two sliding plates, so that the two sliding frames move towards each other, thereby realizing the adjustment of the distance between the moving wheels. At the same time, the rotating cylinder and the driven shaft are slidably connected through rib grooves and ribs, which ensures the rotation of the moving wheels while not affecting the adjustment of the distance between the moving wheels. At the same time, the driving unit can make the teeth of the limit gear inserted into the internal teeth of the annular groove under the action of the spring force to achieve stable self-locking.

[0022] 2. During the process of the tiller moving forward, when the support handle and the support rod encounter an obstacle, the support handle rotates backward, so that the support rod slides over the outer surface of the obstacle. At the same time, the torsion spring force acts on the support handle to realize the reset of the support handle, without affecting the work of the tiller. When the tiller stops, the gravity of the tilling frame acts on the support rod, and the support handle rotates forward. At the same time, the limit rod provides support for the support handle, thereby ensuring that the support mechanism can quickly and stably support the tiller.

[0023] 3. The screw drives the link mechanism to realize the synchronous position adjustment of the two connecting seats, so that the connecting seats can meet the connection requirements of different specifications of tilling components, and then the tiller can be closely matched with different tilling components, improving the tilling efficiency of the tiller. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 is a schematic structural diagram of the present invention;

[0025] Figure 2 is a schematic structural diagram of the right side of the present invention;

[0026] Figure 3 is a schematic cross-sectional structural diagram of the interior of the present invention;

[0027] Figure 4 is a schematic cross-sectional structural diagram of the rear side of the present invention;

[0028] Figure 5 Schematic cross-sectional structure diagram of the adjustment bin of the present invention;

[0029] Figure 6 Enlarged structure diagram at position A of the present invention;

[0030] Figure 7 Enlarged structure diagram at position B of the present invention;

[0031] Figure 8 Enlarged structure diagram at position C of the present invention;

[0032] Figure 9 Enlarged structure diagram at position D of the present invention;

[0033] Figure 10 Schematic cross-sectional structure diagram of the upper side of the adjustment bin of the present invention;

[0034] Figure 11 Schematic cross-sectional structure diagram of the T-shaped frame of the present invention;

[0035] Figure 12 Partial structure diagram of the wheel spacing adjustment mechanism of the present invention.

[0036] In the figure: 1 tillage frame, 2 adjustment bin, 3 wheel spacing adjustment mechanism, 31 rotating shaft, 32 gear, 33 sliding groove, 34 sliding frame, 35 rotating cylinder, 36 driven shaft, 37 sliding plate, 38 sliding cylinder, 4 connecting mechanism, 41 T-shaped frame, 42 sliding cavity, 43 sliding seat, 44 adjustment seat, 45 connecting rod, 46 screw rod, 47 connecting seat, 5 support mechanism, 51 support, 52 support handle, 53 torsion spring, 54 support rod, 55 limiting rod, 6 driving mechanism, 61 worm gear, 62 worm, 63 annular groove, 64 driving plate, 65 driving handle, 66 spring, 67 limiting gear, 7 moving wheel, 8 driven belt pulley, 9 transmission shaft one, 10 transmission shaft two, 11 driving belt pulley one, 12 diesel engine, 13 gearbox one, 14 driving belt pulley, 15 driving belt pulley two, 16 driving belt pulley three, 17 driving belt pulley four, 18 gearbox two, 19 fixing screw. Detailed implementation manners

[0037] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0038] Please refer to Figures 1-12, this embodiment provides a technical solution: a multifunctional double-wheel tiller, including a tilling frame 1. At the rear end of the upper surface of the tilling frame 1, an adjustment chamber 2 is provided. At the lower end of the tilling frame 1, symmetrically distributed moving wheels 7 are provided. At the upper end of the adjustment chamber 2, a toolbox is provided, which stores auxiliary repair tools for the tiller. At the rear end of the tilling frame 1, a handle is fixedly connected, and the traveling direction of the tiller is controlled through the handle. It also includes a wheel spacing adjustment mechanism 3, a connection mechanism 4, a support mechanism 5, and a drive mechanism 6;

[0039] Wheel spacing adjustment mechanism 3: It includes a chute 33, a sliding frame 34, a rotating cylinder 35, and a driven shaft 36. The chutes 33 are evenly arranged on the bottom wall of the adjustment chamber 2. At the left and right ends between the three chutes 33, sliding frames 34 are slidably connected. At the lower ends of the two sliding frames 34, rotating cylinders 35 are rotatably connected through bearings. The driven shaft 36 is rotatably connected to the bottom end of the first frame at the lower end of the tilling frame 1. Inside the rotating cylinders 35, symmetrically distributed rib grooves are provided. At the left and right ends of the driven shaft 36, symmetrically distributed ribs are fixedly connected, and the ribs are slidably connected to the laterally adjacent rib grooves. The wheel spacing adjustment mechanism 3 also includes a rotating shaft 31, a gear 32, a sliding plate 37, and a sliding cylinder 38. The rotating shaft 31 is rotatably connected to the upper end of the adjustment chamber 2. At the lower end of the rotating shaft 31, a gear 32 is fixedly connected. The sliding plates 37 are respectively fixedly connected to the rear end of the right side surface of the left sliding frame 34 and the front end of the left side surface of the right sliding frame 34. The sliding cylinders 38 are respectively fixedly connected to the front end of the right side surface of the left sliding frame 34 and the rear end of the left side surface of the right sliding frame 34. The sliding cylinders 38 are slidably connected to the laterally adjacent sliding plates 37. On the opposite inner surfaces of the two sliding plates 37, rack plates are fixedly connected, and the two rack plates are meshed with the gear 32. At the end of the rotating cylinder 35 away from the center of the tilling frame 1, fixed disks are fixedly connected. At the opposite ends of the two fixed disks, evenly distributed fixed screws 19 are fixedly connected. Inside the moving wheels 7, evenly distributed jacks are provided. The outer surfaces of the fixed screws 19 are inserted into the radially adjacent jacks. At the end of the fixed screw 19 away from the center of the tilling frame 1, nuts are threadedly connected. When the rotating shaft 31 rotates to drive the gear 32 to rotate, the gear 32 causes the two rack plates to move relatively. The rack plates drive the longitudinally adjacent sliding plates 37 to move in the corresponding sliding cylinders 38 in the direction close to the center of the tilling frame 1, thereby causing the two sliding frames 34 to move in the direction close to the center of the tilling frame 1 between the three chutes 33. The movement of the two sliding frames 34 drives the vertically adjacent rotating cylinders 35 to move in the direction close to the center of the tilling frame 1. At the same time, the ribs slide in the corresponding rib grooves. The movement of the rotating cylinders 35 drives the laterally adjacent fixed disks to move in the direction close to the center of the tilling frame 1. When the fixed disks reach the required spacing, the jacks inside the moving wheels 7 are inserted into the corresponding fixed screws 19, and then the nuts are threadedly connected to the ends of the fixed screws 19 away from the center of the tilling frame 1 in sequence to lock the positions of the moving wheels 7 and the laterally adjacent fixed disks;

[0040] Connecting mechanism 4: It is arranged at the rear end of the tilling frame 1. The connecting mechanism 4 includes a T-shaped frame 41, a sliding cavity 42, a sliding seat 43 and a connecting seat 47. The T-shaped frame 41 is fixedly connected to the lower end of the rear side surface of the tilling frame 1. Three sliding cavities 42 are arranged at the lower end of the T-shaped frame 41. The rear ends of the two sliding cavities 42 located inside the cross bar of the T-shaped frame 41 are both provided with sliding openings. A sliding seat 43 is slidably connected between the sliding opening and the longitudinally adjacent sliding cavity 42. The rear ends of the sliding seats 43 are fixedly connected with connecting seats 47. A fixed connecting seat is fixedly connected to the rear end of the lower surface of the T-shaped frame 41. The connecting seat 47 and the fixed connecting seat are cooperatively installed with an external tilling component. The connecting mechanism 4 further includes an adjusting seat 44, a connecting rod 45 and a screw rod 46. The adjusting seat 44 is slidably connected inside the sliding cavity 42 located inside the vertical rod of the T-shaped frame 41. The connecting rods 45 are rotatably connected to the lower ends of the sliding seats 43. The front ends of the connecting rods 45 are rotatably connected to the lower end of the adjusting seat 44. A screw rod 46 is rotatably connected inside the longitudinally distributed sliding cavity 42. The middle part of the screw rod 46 is threadedly connected to the inside of the adjusting seat 44. According to the specifications of the external tilling component to be used, rotate the screw rod 46. The rotation of the screw rod 46 causes the adjusting seat 44 to longitudinally slide inside the corresponding sliding cavity 42. The longitudinal movement of the adjusting seat 44 drives the front ends of the two connecting rods 45 to longitudinally move. At the same time, the rear ends of the connecting rods 45 both pull the corresponding sliding seats 43 to laterally slide inside the corresponding sliding cavities 42. The sliding directions of the two sliding seats 43 are opposite. The movement of the sliding seats 43 both drives the longitudinally adjacent connecting seats 47 to laterally move. When the connecting seat 47 reaches the required position, stop rotating the screw rod 46, and then stably connect the connecting unit of the connecting seat 47, the fixed connecting seat and the external tilling component with a pin shaft;

[0041] Support mechanism 5: It is arranged at the front side of the bottom end of the tillage frame 1. The support mechanism 5 includes a support 51, a support handle 52, a torsion spring 53, a support rod 54 and a limit rod 55. The supports 51 are symmetrically and fixedly connected to the rear end of the lower surface of the tillage frame 1. A fixed shaft is fixedly connected between the two supports 51. The left and right ends of the outer surface of the fixed shaft are rotatably connected to the support handles 52 respectively. A support rod 54 is fixedly connected to the lower end between the two support handles 52. Bayonets are arranged at the upper ends of the two support handles 52. The limit rod 55 is fixedly connected to the rear end of the lower surface of the tillage frame 1. The two bayonets are respectively clamped with the corresponding ends of the limit rod 55. Torsion springs 53 are fixedly connected between the support handle 52 and the laterally adjacent support 51. The torsion springs 53 are all movably sleeved on the outer surface of the fixed shaft. During the running of the tillage machine, when the support handle 52 and the support rod 54 encounter an obstacle, the support rod 54 is subjected to resistance, causing the support handle 52 to rotate backward around the central axis of the fixed shaft. At the same time, the two torsion springs 53 are twisted to hold a special force. When the support rod 54 slides over the outer surface of the obstacle, the elastic force of the torsion spring 53 acts on the corresponding support handle 52, and the support handles 52 all rotate forward around the central axis of the fixed shaft to realize the reset of the support handle 52 without affecting the running of the tillage machine. When the tillage machine stops, the gravity of the tillage frame 1 acts on the support rod 54 through the support handle 52. At the same time, the support handle 52 rotates forward around the central axis of the fixed shaft. The bayonets at the upper ends of the support handle 52 are respectively clamped with the corresponding ends of the limit rod 55. The support handle 52, the limit rod 55 and the tillage frame 1 form a triangle. At the same time, the support rod 54 contacts the ground and cooperates with the two moving wheels 7 to realize the stable support of the tillage frame 1;

[0042] Drive mechanism 6: It is arranged at the rear end of the adjustment bin 2. The drive mechanism 6 is used to drive the wheel spacing adjustment mechanism 3. The drive mechanism 6 includes a worm gear 61, a worm 62, an annular groove 63, a drive plate 64, a drive handle 65, a spring 66 and a limit gear 67. The worm gear 61 is fixedly connected to the upper end of the rotating shaft 31. The worm 62 is rotatably connected to the right end of the adjustment bin 2. The worm 62 and the worm gear 61 are meshed and connected. A drive plate 64 is fixedly connected to the rear end of the worm 62. The middle part of the drive handle 65 is slidably connected to the lower end of the drive plate 64. A limit gear 67 is fixedly connected to the front end of the drive handle 65. A spring 66 is fixedly connected between the limit gear 67 and the drive plate 64. The spring 66 is movably sleeved on the outer surface of the drive handle 65. The annular groove 63 is arranged in the middle of the rear side surface of the adjustment bin 2. Uniformly distributed tooth grooves are arranged inside the annular groove 63. The teeth of the limit gear 67 are inserted into the radially adjacent gears. The central axes of the annular groove 63 and the worm 62 coincide. Pull the drive handle 65 backward. The backward movement of the drive handle 65 drives the limit gear 67 to move backward. The limit gear 67 is disengaged from the annular groove 63. At the same time, the backward movement of the limit gear 67 causes the spring 66 to be elastically compressed. Then, the drive plate 64 is rotated by the drive handle 65. The rotation of the drive handle 64 drives the worm 62 to rotate. The rotation of the worm 62 drives the worm gear 61 to rotate. The rotation of the worm gear 61 drives the rotating shaft 31 to rotate. When the fixed disk reaches the required spacing, stop rotating the drive handle 65. The elastic force of the spring 66 pushes the limit gear 67 forward. The limit gear 67 re-enters the inside of the annular groove 63. The teeth of the limit gear 67 are inserted into the radially adjacent tooth grooves, thereby realizing the position locking of the drive handle 65. While the worm 62 and the worm gear 61 are self-locked, the position locking of the drive handle 65 further improves the position locking stability of the worm 62;

[0043] Among them: A diesel engine 12 is arranged at the front end of the upper surface of the tillage frame 1. A first gearbox 13 is arranged in the middle of the upper surface of the tillage frame 1. The right end of the output shaft of the diesel engine 12 is fixedly connected with a driving pulley 14. The right end of the power input shaft of the first gearbox 13 is fixedly connected with a second transmission pulley 15. The driving pulley 14 and the second transmission pulley 15 are connected by a first transmission belt. The left end of the power output shaft of the first gearbox 13 is fixedly connected with a third transmission pulley 16. The lower end of the tillage frame 1 is rotatably connected with a second transmission shaft 10. The left end of the second transmission shaft 10 is fixedly connected with a fourth transmission pulley 17. The third transmission pulley 16 and the fourth transmission pulley 17 are connected by a second transmission belt. A first transmission pulley 11 is fixedly connected to the middle of the second transmission shaft 10. A driven pulley 8 is fixedly connected to the middle of the driven shaft 36. The driven pulley 8 and the first transmission pulley 11 are connected by a third transmission belt;

[0044] Wherein: a driving bevel gear is fixedly connected to the right end of the second transmission shaft 10, the first transmission shaft 9 is rotatably connected to the right end of the lower surface of the farming frame 1, a first driving bevel gear is fixedly connected to the front end of the first transmission shaft 9, the driving bevel gear and the first driving bevel gear are meshed and connected, a second driving bevel gear is fixedly connected to the rear end of the first transmission shaft 9, a second transmission 18 is arranged at the rear end of the lower surface of the farming frame 1, a driven bevel gear is fixedly connected to the right end of the power input shaft of the second transmission 18, the driven bevel gear and the second driving bevel gear are meshed and connected, and the power output shaft of the second transmission 18 is cooperatively installed with the power input end of an external farming component.

[0045] The working principle of a multi-functional double-wheel tiller provided by the present invention is as follows: During operation, according to the tilling spacing of the crops, the operator first pulls the driving handle 65 backward. The backward movement of the driving handle 65 drives the limit gear 67 to move backward. The limit gear 67 disengages from the annular groove 63. At the same time, the backward movement of the limit gear 67 causes the spring 66 to be elastically compressed. Then, the operator rotates the driving plate 64 through the driving handle 65. The rotation of the driving handle 64 drives the worm 62 to rotate. The rotation of the worm 62 drives the worm wheel 61 to rotate. The rotation of the worm wheel 61 drives the rotating shaft 31 to rotate. The rotation of the rotating shaft 31 drives the gear 32 to rotate. The gear 32 causes the two rack plates to move relatively. The rack plates both drive the longitudinally adjacent sliding plates 37 to move toward the center of the tilling frame 1 inside the corresponding sliding cylinders 38. As a result, the two sliding frames 34 both move toward the center of the tilling frame 1 between the three sliding grooves 33. The movement of the two sliding frames 34 both drives the vertically adjacent rotating cylinders 35 to move toward the center of the tilling frame 1. At the same time, the ribs all slide inside the corresponding rib grooves. The movement of the rotating cylinders 35 both drives the horizontally adjacent fixed disks to move toward the center of the tilling frame 1. When the fixed disks reach the required spacing, the operator stops rotating the driving handle 65. The elastic force of the spring 66 pushes the limit gear 67 forward. The limit gear 67 re-enters the inside of the annular groove 63. The teeth of the limit gear 67 are inserted into the radially adjacent tooth grooves, thereby realizing the position locking of the driving handle 65. While the worm 62 and the worm wheel 61 are self-locked, the position locking of the driving handle 65 further improves the position locking stability of the worm 62. Then, the operator inserts the jacks inside the moving wheels 7 into the corresponding fixed screws 19 respectively. Then, the operator threads the nuts onto the ends of the fixed screws 19 away from the center of the tilling frame 1 in sequence to realize the position locking of the moving wheels 7 and the horizontally adjacent fixed disks. When the installation of the two moving wheels 7 is completed, according to the specifications of the external tilling components to be used, the operator rotates the screw 46. The rotation of the screw 46 causes the adjusting seat 44 to slide longitudinally inside the corresponding sliding cavity 42. The longitudinal movement of the adjusting seat 44 drives the front ends of the two connecting rods 45 to move longitudinally. At the same time, the rear ends of the connecting rods 45 both pull the corresponding sliding seats 43 to slide transversely inside the corresponding sliding cavities 42. The sliding directions of the two sliding seats 43 are opposite. The movement of the sliding seats 43 both drives the longitudinally adjacent connecting seats 47 to move transversely. When the connecting seats 47 reach the required positions, the operator stops rotating the screw 46. Then, the connecting seats 47 and the connection units of the fixed connecting seats and the external tilling components are stably connected through pins. After the connection is stable, the operator starts the diesel engine 12. The output shaft of the diesel engine 12 rotates to drive the driving pulley 14 to rotate. The driving pulley 14 drives the driven pulley two 15 through the first transmission belt. The rotation of the driven pulley two 15 drives the power input shaft of the first gearbox 13 to rotate. The first gearbox 13 adjusts the rotational speed. Then, the power output shaft of the first gearbox 13 rotates to drive the driven pulley three 16. The driven pulley three 16 drives the driven pulley four 17 to rotate through the second transmission belt.The rotation of the fourth transmission pulley 17 drives the rotation of the second transmission shaft 10. The rotation of the second transmission shaft 10 drives the rotation of the first transmission pulley 11. The first transmission pulley 11 drives the driven pulley 8 through the third transmission belt. The rotation of the driven pulley 8 drives the driven shaft 36. The rotation of the driven shaft 36 drives the rotation of the two rotating cylinders 35 under the action of the rib grooves and ribs. The rotation of the rotating cylinders 35 drives the rotation of the laterally adjacent fixed disks, thereby driving the rotation of the moving wheels 7. The rotation of the moving wheels 7 realizes the movement of the tiller. The operator controls the traveling direction of the tiller through the handle, and then the external tilling components perform tilling operations. During the traveling of the tiller, when the support handle 52 and the support rod 54 encounter an obstacle, the support rod 54 is subjected to resistance, causing the support handle 52 to rotate backward around the central axis of the fixed shaft, and at the same time causing the two torsion springs 53 to hold a special force. When the support rod 54 slides over the outer surface of the obstacle, the elastic force of the torsion spring 53 acts on the corresponding support handle 52, and the support handle 52 rotates forward around the central axis of the fixed shaft to realize the reset of the support handle 52 without affecting the traveling of the tiller. When the tiller stops, the gravity of the tilling frame 1 acts on the support rod 54 through the support handle 52, and at the same time the support handle 52 rotates forward around the central axis of the fixed shaft. The bayonets at the upper ends of the support handles 52 are respectively clamped with the corresponding ends of the limit rods 55. The support handle 52, the limit rod 55 and the tilling frame 1 form a triangle. At the same time, the support rod 54 contacts the ground and cooperates with the two moving wheels 7 to realize the stable support of the tilling frame 1.

[0046] It should be noted that the diesel engine disclosed in the above embodiments may be selected as A498BT-6A.

[0047] The above are only the embodiments of the present invention, and do not limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made by using the content of the specification and drawings of the present invention, or directly or indirectly applied in other related technical fields, shall be equally included in the patent protection scope of the present invention.

Claims

1. A multifunctional two-wheel tilling machine, comprising a tilling frame (1), a regulating bin (2) is arranged at the rear end of the upper surface of the tilling frame (1), and symmetrically distributed moving wheels (7) are arranged at the lower end of the tilling frame (1), characterized in that: It further includes a wheel spacing adjustment mechanism (3), a connection mechanism (4), a support mechanism (5) and a drive mechanism (6). Wheel spacing adjustment mechanism (3): It includes a chute (33), a sliding frame (34), a rotating cylinder (35) and a driven shaft (36). The chutes (33) are evenly arranged on the bottom wall of the adjustment bin (2). Sliding frames (34) are slidably connected to both the left and right ends between the three chutes (33). The lower ends of the two sliding frames (34) are rotatably connected to the rotating cylinder (35) through bearings. The driven shaft (36) is rotatably connected to the bottom end of the first frame at the lower end of the tilling frame (1). Symmetrically distributed rib grooves are arranged inside the rotating cylinder (35). Symmetrically distributed ribs are fixedly connected to both the left and right ends of the driven shaft (36). The ribs are slidably connected to the laterally adjacent rib grooves respectively. Connection mechanism (4): It is arranged at the rear end of the tilling frame (1). Support mechanism (5): It is arranged at the front side of the bottom end of the tilling frame (1). Drive mechanism (6): It is arranged at the rear end of the adjustment bin (2). The drive mechanism (6) is used to drive the wheel spacing adjustment mechanism (3).

2. The multifunctional two-wheel tiller according to claim 1, characterized in that: The wheel spacing adjustment mechanism (3) further includes a rotating shaft (31), a gear (32), a sliding plate (37) and a sliding cylinder (38). The rotating shaft (31) is rotatably connected to the upper end of the adjustment bin (2). The gear (32) is fixedly connected to the lower end of the rotating shaft (31). The sliding plates (37) are respectively fixedly connected to the rear end of the right side surface of the left sliding frame (34) and the front end of the left side surface of the right sliding frame (34). The sliding cylinders (38) are respectively fixedly connected to the front end of the right side surface of the left sliding frame (34) and the rear end of the left side surface of the right sliding frame (34). The sliding cylinders (38) are all slidably connected to the laterally adjacent sliding plates (37). Rack plates are fixedly connected to the opposite inner surfaces of the two sliding plates (37). The two rack plates are both meshed with the gear (32).

3. The multifunctional two-wheel tiller according to claim 1, wherein: The connection mechanism (4) includes a T-shaped frame (41), a sliding cavity (42), a sliding seat (43) and a connection seat (47). The T-shaped frame (41) is fixedly connected to the lower end of the rear side surface of the tilling frame (1). Three sliding cavities (42) are arranged at the lower end of the T-shaped frame (41). Slide openings are arranged at the rear ends of the two sliding cavities (42) located inside the cross bar of the T-shaped frame (41). The sliding seats (43) are slidably connected between the slide openings and the longitudinally adjacent sliding cavities (42). The connection seats (47) are fixedly connected to the rear ends of the sliding seats (43). A fixed connection seat is fixedly connected to the rear end of the lower surface of the T-shaped frame (41). The connection seats (47) and the fixed connection seat are cooperatively installed with external tilling components.

4. A multifunctional double-wheel tiller according to claim 3, characterized in that: The connecting mechanism (4) further includes an adjusting seat (44), a connecting rod (45) and a screw rod (46). The adjusting seat (44) is slidably connected to the inside of a sliding cavity (42) located inside the longitudinal rod of the T-shaped frame (41). The connecting rods (45) are rotatably connected to the lower end of the sliding seat (43). The front ends of the connecting rods (45) are rotatably connected to the lower end of the adjusting seat (44). A screw rod (46) is rotatably connected to the inside of the longitudinally distributed sliding cavity (42). The middle part of the screw rod (46) is threadedly connected to the inside of the adjusting seat (44).

5. A multi-functional double-wheel tiller according to claim 1, characterized in that: The supporting mechanism (5) includes a support (51), a support handle (52), a torsion spring (53), a support rod (54) and a limiting rod (55). The supports (51) are symmetrically and fixedly connected to the rear end of the lower surface of the tilling frame (1). A fixed shaft is fixedly connected between the two supports (51). The left and right ends of the outer surface of the fixed shaft are rotatably connected to the support handles (52). A support rod (54) is fixedly connected to the lower end between the two support handles (52). The upper ends of the two support handles (52) are each provided with a bayonet. The limiting rod (55) is fixedly connected to the rear end of the lower surface of the tilling frame (1). The two bayonets are respectively clamped with the corresponding ends of the limiting rod (55). A torsion spring (53) is fixedly connected between the support handle (52) and the laterally adjacent support (51). The torsion springs (53) are movably sleeved on the outer surface of the fixed shaft.

6. A multifunctional double-wheel tiller according to claim 2, characterized in that: The driving mechanism (6) includes a worm gear (61), a worm (62), an annular groove (63), a driving plate (64), a driving handle (65), a spring (66) and a limiting gear (67). The worm gear (61) is fixedly connected to the upper end of the rotating shaft (31). The worm (62) is rotatably connected to the right end of the adjusting bin (2). The worm (62) and the worm gear (61) are meshed and connected. The rear end of the worm (62) is fixedly connected to the driving plate (64). The middle part of the driving handle (65) is slidably connected to the lower end of the driving plate (64). The front end of the driving handle (65) is fixedly connected to the limiting gear (67). A spring (66) is fixedly connected between the limiting gear (67) and the driving plate (64). The spring (66) is movably sleeved on the outer surface of the driving handle (65). The annular groove (63) is arranged in the middle of the rear side surface of the adjusting bin (2). Uniformly distributed tooth grooves are arranged inside the annular groove (63). The teeth of the limiting gear (67) are inserted into the radially adjacent gears.

7. A multifunctional two-wheel tiller according to claim 1, characterized in that: Fixed disks are fixedly connected to one ends of the rotating drums (35) far away from the center of the tilling frame (1). Uniformly distributed fixed screw rods (19) are fixedly connected to the opposite ends of the two fixed disks. Uniformly distributed jacks are arranged inside the moving wheels (7). The outer surfaces of the fixed screw rods (19) are inserted into the radially adjacent jacks. Nuts are threadedly connected to the ends of the fixed screw rods (19) far away from the center of the tilling frame (1).

8. A multifunctional two-wheel tiller according to claim 1, characterized in that: At the front end of the upper surface of the tilling frame (1), a diesel engine (12) is provided. In the middle of the upper surface of the tilling frame (1), a first transmission (13) is provided. The right end of the output shaft of the diesel engine (12) is fixedly connected to a driving pulley (14). The right end of the power input shaft of the first transmission (13) is fixedly connected to a second transmission pulley (15). The driving pulley (14) and the second transmission pulley (15) are connected by a first transmission belt. The left end of the power output shaft of the first transmission (13) is fixedly connected to a third transmission pulley (16). The lower end of the tilling frame (1) is rotatably connected to a second transmission shaft (10). The left end of the second transmission shaft (10) is fixedly connected to a fourth transmission pulley (17). The third transmission pulley (16) and the fourth transmission pulley (17) are connected by a second transmission belt. In the middle of the second transmission shaft (10), a first transmission pulley (11) is fixedly connected. In the middle of the driven shaft (36), a driven pulley (8) is fixedly connected. The driven pulley (8) and the first transmission pulley (11) are connected by a third transmission belt.

9. The multifunctional two-wheel tiller according to claim 8, characterized in that: The right end of the second transmission shaft (10) is fixedly connected to a driving helical gear. The lower surface of the right end of the tilling frame (1) is rotatably connected to a first transmission shaft (9). The front end of the first transmission shaft (9) is fixedly connected to a first driven helical gear. The driving helical gear and the first driven helical gear are meshed. The rear end of the first transmission shaft (9) is fixedly connected to a second driven helical gear. At the rear end of the lower surface of the tilling frame (1), a second transmission (18) is provided. The right end of the power input shaft of the second transmission (18) is fixedly connected to a driven helical gear. The driven helical gear and the second driven helical gear are meshed. The power output shaft of the second transmission (18) is cooperatively installed with the power input end of an external tilling component.

10. A multifunctional two-wheel tiller according to claim 1, characterized in that: At the upper end of the adjustment bin (2), a toolbox is provided. The rear end of the tilling frame (1) is fixedly connected to a handle.

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