Transmission mechanism for four-wheel drive micro-tillage machine

Abstract

The present invention relates to the technical field of micro-tillage machines, and in particular to a transmission mechanism for a four-wheel drive micro-tillage machine, comprising a transmission case body, the exterior of which is an inverted "V" shape, comprising a transmission assembly, the transmission assembly being arranged at the tip of the transmission case body; a built-in drive assembly, the built-in drive assembly being arranged inside the transmission case body; two liquid guide assemblies, the two liquid guide assemblies being arranged at the openings of the transmission case body; a liquid pumping assembly, the liquid pumping assembly being transmission-connected with the transmission assembly; wherein the transmission assembly comprises an active rod and an active wheel control assembly, the present invention is provided with a lever assembly, the lever assembly can control the active wheel control assembly, and the active wheel control assembly can control the active wheel, so that the active wheel can be respectively meshed with a first transmission wheel group and a second transmission wheel group, and the first transmission wheel group and the second transmission wheel group can be driven separately, so that the user can use it conveniently.

Description

Technical Field

[0001] The invention relates to the technical field of micro-tillage machines, in particular to a transmission mechanism for a four-wheel drive micro-tillage machine. background

[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, etc. The micro-tillage machine is widely used in dry land, paddy fields, orchards, etc. in plains, mountainous areas, and hills. Equipped with corresponding equipment, it can be used for pumping, power generation, spraying, and spraying. It can also be used to tow a trailer for short-distance transportation. The micro-tillage machine can be used freely in the field, which is convenient for users to use and store, eliminating the trouble that large agricultural machinery cannot enter the fields in mountainous areas. It is the best choice for farmers and consumers to replace cattle plowing.

[0003] The Chinese invention patent (CN202010477945.8) discloses a travel box for a four-wheel drive micro-tillage machine, including a micro-tillage machine body, a gearbox detachably connected to the micro-tillage machine body, the gearbox is connected to a middle travel box and a front travel box for transmitting the output power of the gearbox, the middle travel box is connected to a lower travel box, a lower circular hole is provided on the side wall of the lower travel box, and a lower transmission shaft is rotatably connected in the lower circular hole, and the output power of the gearbox drives the lower transmission shaft to rotate through the middle travel box; a front circular hole is provided on the side wall of the front travel box, and a front transmission shaft is rotatably connected in the front circular hole, and the output power of the gearbox drives the front transmission shaft to rotate; a bottom hole is provided at the bottom of the lower travel box, and a bottom plate for sealing the bottom hole is detachably connected to the bottom of the lower travel box; and a heat dissipation hole is provided on the front travel box. It mainly solves the problem that the transmission shaft and belt exposed to the outside are damaged by the splash of stones during tillage, thereby affecting the normal operation of the micro-tillage machine.

[0004] Has the following problems:

[0005] (1) During the use of the existing device, the driving wheel in the transmission box is prone to discontinuity when driving and separating, which easily increases the wear of the internal gears. When the lubricating fluid in the device adheres to the gears, the lubricating fluid cannot adhere to the entire surface of the gears, thereby reducing the transmission efficiency.

[0006] (2) During the use of existing equipment, the gears collide with each other during the meshing process, which produces fine iron chips, resulting in the presence of iron chip impurities in the lubricating fluid, reducing the effectiveness of the lubricating fluid. At the same time, the debris in the lubricating fluid reduces the meshing effect of the gears, accelerates the wear of the gears, and reduces the service life of the gears.

[0007] (3) When the existing equipment is in use, the driving structure inside the equipment is often fixedly connected together, and the driving structure cannot be driven and controlled independently, which reduces the use effect of the equipment. Summary of the invention

[0008] The object of the present invention is to provide a transmission mechanism for a four-wheel drive micro-tillage machine to solve the problems raised in the above background technology.

[0009] The technical solution of the present invention is: a transmission mechanism for a four-wheel drive micro-tillage machine, comprising a transmission box body, the outer portion of the transmission box body is an inverted "V" shape, and comprises a transmission assembly, and the transmission assembly is arranged at the tip of the transmission box body;

[0010] A built-in drive assembly, wherein the built-in drive assembly is arranged inside the transmission box body;

[0011] Two liquid guide components, the two liquid guide components are arranged at the openings of the transmission box body;

[0012] A liquid pumping assembly, the liquid pumping assembly is transmission-connected to the transmission assembly;

[0013] Among them, the transmission assembly includes an active rod and an active wheel control assembly, the active rod is rotatably arranged on the outer wall of the transmission box body, a belt driving wheel is sleeved on the outside of one end of the active rod, and a active wheel is slidably arranged on the other end of the active rod, a blind hole is opened in the center of the active rod, and the active wheel control assembly is arranged inside the active rod.

[0014] Furthermore, one side of the transmission box body is open, and a transmission box fixing cover is provided outside the opening of the transmission box body.

[0015] Furthermore, the built-in drive assembly includes a first transmission wheel group and a second transmission wheel group, and the first transmission wheel group and the second transmission wheel group are meshed with the driving wheel, the first transmission wheel group and the second transmission wheel group are respectively arranged at the opening ends of the transmission box body, and the distance between the first transmission wheel group and the belt driving wheel is greater than the distance between the second transmission wheel group and the belt driving wheel.

[0016] Furthermore, the liquid extraction component includes a liquid guide box, a filter box and a liquid collecting plate, the interior of the liquid guide box is provided with a liquid guide membrane and a push rod limiting plate, and one side of the liquid guide box is connected to a liquid outlet box, the liquid outlet box is communicated with the interior of the liquid guide box, a rectangular through hole is provided in the central through hole of the push rod limiting plate, and a push rod is passed through the central through hole of the push rod limiting plate, a threaded hole is provided at one end of the push rod, and an arc-shaped sheet is provided at the other end of the push rod, the arc-shaped end of the push rod is pressed against one side of the liquid guide membrane, a built-in reciprocating screw is provided in the threaded hole at one end of the push rod, and one end of the built-in reciprocating screw Fixed at one end of the active rod, there are two filter boxes in total, and the two filter boxes are arranged below the transmission box body. There are two liquid collecting plates in total, and the outer surfaces of the two liquid collecting plates are arc-shaped. Through holes are opened on the inner sides of the two liquid collecting plates. Liquid guide holes are opened on the outer wall of the transmission box body, and the two liquid collecting plates are connected to the filter boxes through the liquid guide holes. The tops of the two filter boxes are connected with liquid inlet pipes, and the other ends of the liquid inlet pipes are connected to the lower end of the liquid guide box. The top of the liquid outlet box is connected with a liquid outlet pipe, and the other end of the liquid outlet pipe is connected to the liquid guide assembly.

[0017] Furthermore, a first liquid blocking sheet is provided at the connection between the liquid guiding box and the liquid inlet pipe, and a second liquid blocking sheet is provided at the connection between the liquid outlet box and the liquid guiding box.

[0018] Furthermore, the liquid guiding component includes two liquid guiding plates, and a plurality of liquid guiding cavities are provided inside the two liquid guiding plates, and a plurality of liquid guiding seats are provided on the outer walls of the liquid guiding plates, each of the liquid guiding seats is connected to each liquid guiding cavity, and a liquid outlet hole is provided on the outer walls of the liquid guiding seats, and the liquid guiding seats correspond to the meshing parts of the built-in driving components.

[0019] Furthermore, the driving wheel control assembly includes a built-in limit rod, which is arranged inside the active rod, and the outer wall of the built-in limit rod is provided with two driving wheel drive seats. The outer wall of the active rod is provided with a drive seat moving hole matching the driving wheel drive seat, and the driving wheel drive seat is slidably arranged in the drive seat moving hole, and the inner side of the driving wheel is provided with a groove matching the driving wheel drive seat, and the end of the built-in limit rod away from the driving wheel drive seat is connected to a lever assembly.

[0020] Furthermore, the lever assembly includes a transfer rod, a rectangular through hole is opened at one end of the transfer rod, and a rotating seat is hingedly arranged in the through hole at one end of the transfer rod, a through hole is opened at the center of the rotating seat, a bearing is fixed in the center through hole of the rotating seat, and the bearing sleeve is arranged on the outside of the built-in limit rod.

[0021] Furthermore, the interior of the filter box is filled with filter media, and a threaded hole is opened at the lower end of the filter box, and a plug is arranged in the threaded hole at the lower end of the filter box.

[0022] Furthermore, the filter medium is made of composite fiber, and the filter medium is filled inside the filter box.

[0023] The present invention provides a transmission mechanism for a four-wheel drive micro-tillage machine through improvement, which has the following improvements and advantages compared with the prior art:

[0024] First, the present invention is provided with a lever assembly, which can control the driving wheel control assembly, and the driving wheel control assembly can control the driving wheel, so that the driving wheel can be engaged with the first transmission wheel group and the second transmission wheel group respectively, and can drive the first transmission wheel group and the second transmission wheel group separately, which is convenient for users to use, and can solve the problem that one driving source in the existing equipment needs multiple linkage wheels for transmission, reduce the use of linkage wheels, and improve the transmission effect;

[0025] Second, the internal liquid guide component of the present invention can guide the lubricating liquid, and can accurately guide the lubricating liquid to the first transmission wheel set and the second transmission wheel set, so that the lubricating liquid can adhere to the first transmission wheel set and the second transmission wheel set, thereby improving the transmission efficiency of the first transmission wheel set and the second transmission wheel set;

[0026] Thirdly, the liquid pumping assembly of the present invention can extract the lubricating liquid, and the force of the active rod rotation is used as the power in the liquid pumping assembly, which can reduce the setting of the power source and reduce the energy consumption, and the liquid pumping assembly can guide the lubricating liquid into the liquid guiding assembly to guide the lubricating liquid;

[0027] Fourthly, the filter box of the present invention is arranged below the transmission box body, and a filter medium is arranged inside the filter box, and impurities in the lubricating liquid are filtered through the filter medium to prevent the lubricating liquid entering the liquid guide component from containing impurities, thereby improving the lubricating effect of the lubricating liquid, and a plug is arranged at the bottom of the filter box, so that the user can replace the filter medium inside the filter box conveniently, and it is convenient for the later maintenance;

[0028] Fifth, the present invention is provided with a configuration in which the center line of the first transmission wheel group and the center line of the second transmission wheel group are not on the same horizontal line, so that the driving wheel can engage with the first transmission wheel group and the second transmission wheel group at the same time, and the driving wheel slides on the active rod, and the first transmission wheel group or the second transmission wheel group can be controlled separately through the active rod, which is convenient for the user to control the first transmission wheel group and the second transmission wheel group separately, and convenient for the user to operate. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] The present invention will be further explained below in conjunction with the accompanying drawings and Examples:

[0030] Figure 1 is a stereogram of the present invention;

[0031] Figure 2 It is a schematic diagram of the internal structure of the transmission box body of the present invention;

[0032] Figure 3 is a front view of the present invention;

[0033] Figure 4 is a top view of the present invention;

[0034] Figure 5 is a cross-sectional view of a transmission case body of the present invention;

[0035] Figure 6 The present invention Figure 3 The enlarged structural diagram at A in the middle;

[0036] Figure 7 The present invention Figure 5 The enlarged structural diagram at B in the middle;

[0037] Figure 8 The present invention Figure 5 The enlarged structural diagram at C in the middle;

[0038] Fig. 9 It is a schematic diagram of the top rod structure of the present invention;

[0039] Fig.10 It is a side view of the mandrel limiting piece of the present invention;

[0040] Fig.11 is a cross-sectional view of a liquid guide plate of the present invention;

[0041] Fig.12 is a side view of the transfer rod of the present invention;

[0042] Explanation of the accompanying drawings: 1. Transmission box body; 2. Transmission box fixed cover; 3. Belt drive wheel; 4. Liquid guide box; 5. First transmission wheel group; 6. Second transmission wheel group; 7. Filter box; 8. Liquid collecting plate; 9. Liquid guide seat; 10. Liquid outlet pipe; 11. Liquid inlet pipe; 12. Driving wheel; 13. Liquid guide plate; 14. Adapter rod; 15. Active rod; 16. Built-in limit rod; 17. Liquid guide hole; 18. Filter medium; 19. Plug; 20. Liquid guide membrane; 21. Built-in reciprocating screw; 22. Push rod; 23. Push rod limit plate; 24. First liquid blocking plate; 25. Second liquid blocking plate; 26. Liquid outlet box; 27. Liquid outlet box limit seat; 28. Active wheel drive seat; 29. ​​Drive seat moving hole; 30. Liquid guide cavity; 31. Liquid outlet hole; 32. Rotating seat; 33. Bearing. DETAILED DESCRIPTION

[0043] The present invention is described in detail below, and the technical solutions in the embodiments of the present invention are clearly and completely described. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0044] The present invention provides a transmission mechanism for a four-wheel drive micro-tillage machine through improvement. Figure 1-Figure 12 As shown, it includes a transmission box body 1, the outer portion of the transmission box body 1 is an inverted "V" shape, and includes a transmission assembly, which is arranged at the tip of the transmission box body 1;

[0045] A built-in drive assembly, which is arranged inside the transmission box body 1;

[0046] Two liquid guide components, which are arranged at the openings of the transmission box body 1;

[0047] A liquid pumping assembly, the liquid pumping assembly is transmission-connected with the transmission assembly;

[0048] Among them, the transmission assembly includes an active rod 15 and a driving wheel control assembly. The active rod 15 is rotatably arranged on the outer wall of the transmission box body 1. A belt driving wheel 3 is sleeved on the outside of one end of the active rod 15, and a driving wheel 12 is slidably arranged on the other end of the active rod 15. A blind hole is opened in the center of the active rod 15, and the driving wheel control assembly is arranged inside the active rod 15.

[0049] The transmission component is used for power transmission. The belt drive wheel 3 is connected to an external power source through a belt. At the same time, the built-in drive component can mesh with the driving wheel 12, so that the built-in drive component is controlled by the driving wheel 12, and the built-in drive component can be connected to other external devices through transmission. At the same time, the transmission component can be used for power in the liquid pumping component, so that the liquid guiding component can re-introduce the lubricating liquid into the liquid guiding component without the need for additional external drive, and the lubricating liquid is introduced into the built-in drive component through the liquid guiding component to lubricate the built-in drive component, thereby preventing the gears in the built-in drive component from being worn due to insufficient lubricating liquid, thereby increasing the service life of the built-in drive component.

[0050] Furthermore, one side of the transmission box body 1 is open, and a transmission box fixing cover 2 is provided outside the opening of the transmission box body 1 .

[0051] Furthermore, the built-in driving assembly includes a first transmission wheel group 5 and a second transmission wheel group 6, and the first transmission wheel group 5 and the second transmission wheel group 6 are engaged with the driving wheel 12, the first transmission wheel group 5 and the second transmission wheel group 6 are respectively arranged at the opening ends of the transmission box body 1, and the distance between the first transmission wheel group 5 and the belt driving wheel 3 is greater than the distance between the second transmission wheel group 6 and the belt driving wheel 3.

[0052] according to Figure 4 As shown, the first transmission wheel set 5 and the second transmission wheel set 6 are staggered by a certain distance, so that the driving wheel 12 can mesh with the first transmission wheel set 5 or the second transmission wheel set 6 alone for transmission when sliding, or when the driving wheel 12 moves to the middle part of the first transmission wheel set 5 or the second transmission wheel set 6, the driving wheel 12 can mesh with the first transmission wheel set 5 and the second transmission wheel set 6 at the same time, and drive the first transmission wheel set 5 and the second transmission wheel set 6 for transmission. The first transmission wheel set 5 and the second transmission wheel set 6 are used for driving work of different external drive components and tillage components. At the same time, the first transmission wheel set 5 and the second transmission wheel set 6 form different connection states with the driving wheel 12, and the driving wheel 12 can move on the active rod 15, so that the driving wheel 12 can mesh with the first transmission wheel set 5 or the second transmission wheel set 6 alone, or mesh with the first transmission wheel set 5 and the second transmission wheel set 6 at the same time, so that the operating state of the first transmission wheel set 5 and the second transmission wheel set 6 can be controlled, which is convenient for users to operate.

[0053] Furthermore, the liquid extraction component includes a liquid guide box 4, a filter box 7 and a liquid collecting plate 8, the interior of the liquid guide box 4 is provided with a liquid guide membrane 20 and a push rod limiting plate 23, and one side of the liquid guide box 4 is connected to a liquid outlet box 26, the liquid outlet box 26 is connected to the interior of the liquid guide box 4, a rectangular through hole is provided in the center through hole of the push rod limiting plate 23, and a push rod 22 is passed through the center through hole of the push rod limiting plate 23, a threaded hole is provided at one end of the push rod 22, and an arc-shaped sheet is provided at the other end of the push rod 22, the arc-shaped end of the push rod 22 is pressed against one side of the liquid guide membrane 20, a built-in reciprocating screw 21 is provided in the threaded hole at one end of the push rod 22, and the built-in reciprocating screw 21 is provided in the threaded hole at one end of the push rod 22 One end of the screw rod 21 is fixed to one end of the active rod 15, and there are two filter boxes 7, which are arranged below the transmission box body 1. There are two liquid collecting plates 8, and the two liquid collecting plates 8 are arc-shaped on the outside, and through holes are provided on the inside of the two liquid collecting plates 8. A liquid guide hole 17 is provided on the outer wall of the transmission box body 1, and the two liquid collecting plates 8 are connected to the filter box 7 through the liquid guide hole 17. The tops of the two filter boxes 7 are connected with a liquid inlet pipe 11, and the other ends of the liquid inlet pipe 11 are connected to the lower end of the liquid guide box 4. The top of the liquid outlet box 26 is connected with a liquid outlet pipe 10, and the other end of the liquid outlet pipe 10 is connected to the liquid guide component.

[0054] The liquid pumping assembly is used to suck out the lubricating liquid. When the active rod 15 is running and rotating, the active rod 15 can drive the built-in reciprocating screw 21 to rotate, and the rotating built-in reciprocating screw 21 will drive the push rod 22 to reciprocate, so that the push rod 22 can push the liquid guiding membrane 20 to deform, and during the deformation process, the liquid guiding membrane 20 can generate suction in the liquid guiding box 4, the liquid inlet pipe 11 and the filter box 7, so that the lubricating liquid inside the liquid collecting plate 8 will be sucked into the liquid guiding box 4, and at the same time, the liquid guiding box 4 can introduce the lubricating liquid into the liquid outlet box 26, and introduce the solution into the liquid guiding assembly through the liquid outlet box 26 and the liquid outlet pipe 10 to transport the lubricating liquid. In this way, the lubricating liquid no longer relies on the meshing transmission of the gears, thereby improving the flow effect of the lubricating liquid in the device, increasing the contact effect between the internal gears of the device and the lubricating liquid, and improving the lubrication effect of the gears. At the same time, the device does not require an additional driving structure, reduces the setting of other power devices, reduces the production cost, and also facilitates the subsequent maintenance work.

[0055] Furthermore, a first liquid blocking sheet 24 is provided at the connection between the liquid guiding box 4 and the liquid inlet pipe 11 , and a second liquid blocking sheet 25 is provided at the connection between the liquid outlet box 26 and the liquid guiding box 4 .

[0056] The first liquid blocking sheet 24 and the second liquid blocking sheet 25 play a role of preventing the lubricating liquid in the liquid guiding box 4 and the liquid outlet box 26 from flowing back.

[0057] Furthermore, the liquid guiding component includes a liquid guiding plate 13, and there are two liquid guiding plates 13 in total. A plurality of liquid guiding cavities 30 are provided inside the two liquid guiding plates 13, and a plurality of liquid guiding seats 9 are provided on the outer wall of the liquid guiding plate 13, each liquid guiding seat 9 is connected to each liquid guiding cavity 30, and a liquid outlet hole 31 is provided on the outer wall of the liquid guiding seat 9, and the liquid guiding seat 9 corresponds to the meshing portion of the built-in driving component.

[0058] The liquid guiding cavity 30 inside the liquid guiding plate 13 serves to contain the lubricating liquid. At the same time, each liquid guiding cavity 30 is connected to the corresponding liquid guiding seat 9, so that the lubricating liquid inside each liquid guiding seat 9 will not be confused. At the same time, the lubricating liquid inside the liquid guiding seat 9 is discharged through the liquid outlet hole 31, and the lubricating liquid can be accurately introduced into the built-in driving component to lubricate the built-in driving component, thereby improving the use effect of the lubricating liquid inside the device.

[0059] Furthermore, the driving wheel control assembly includes a built-in limit rod 16, which is arranged inside the active rod 15. The outer wall of the built-in limit rod 16 is provided with two driving wheel drive seats 28. The outer wall of the active rod 15 is provided with a drive seat moving hole 29 matching the driving wheel drive seat 28. The driving wheel drive seat 28 is slidably arranged in the drive seat moving hole 29. The inner side of the driving wheel 12 is provided with a groove matching the driving wheel drive seat 28. The end of the built-in limit rod 16 away from the driving wheel drive seat 28 is connected to a lever assembly.

[0060] The driving wheel control assembly is used to control the position of the driving wheel 12. During the use of the device, the user changes the position of the built-in limit rod 16 through the lever assembly. At the same time, the built-in limit rod 16 will push the driving wheel drive seat 28 to drive the driving wheel 12 to slide, so that the engagement state of the driving wheel 12 with the first transmission wheel group 5 and the second transmission wheel group 6 can be controlled, thereby controlling the operating state of the second transmission wheel group 6.

[0061] Furthermore, the lever assembly includes a transfer rod 14, a rectangular through hole is opened at one end of the transfer rod 14, and a rotating seat 32 is hingedly arranged in the through hole at one end of the transfer rod 14, a through hole is opened in the center of the rotating seat 32, a bearing 33 is fixed in the center through hole of the rotating seat 32, and the bearing 33 is sleeved on the outside of the built-in limit rod 16.

[0062] The rotating seat 32 in the through hole of the transfer rod 14 can rotate, so that the rotating seat 32 will not jam one end of the built-in limiting rod 16, and the built-in limiting rod 16 can rotate through the bearing 33, so that the built-in limiting rod 16 can rotate together with the active rod 15, and the active wheel driving seat 28 outside the built-in limiting rod 16 will be stuck on the inner side of the active wheel 12, so that the active wheel 12 is driven to rotate together, and the active wheel 12 will not be unable to drive the first transmission wheel group 5 and the second transmission wheel group 6.

[0063] Furthermore, the interior of the filter box 7 is filled with a filter medium 18 , and a threaded hole is opened at the lower end of the filter box 7 , and a sealing plug 19 is arranged in the threaded hole at the lower end of the filter box 7 .

[0064] Furthermore, the filter medium 18 is made of composite fiber, and the filter medium 18 is filled inside the filter box 7 .

[0065] The filter medium 18 inside the filter box 7 plays a role in filtering impurities and can filter out impurities in the lubricating fluid. At the same time, after opening the seal 19, the user can replace the filter medium 18, which is convenient for the user to perform maintenance later.

[0066] Working principle: first, the device is set on the micro-tillage machine, and the output ends of the first transmission wheel group 5 and the second transmission wheel group 6 are connected to the external working components. Then, when in use, the power device drives the belt drive wheel 3 to rotate through the belt, and then the belt drive wheel 3 will drive the active rod 15 to rotate, and the active rod 15 will drive the active wheel 12 to rotate through the active wheel drive seat 28, so that the active wheel 12 will drive the first transmission wheel group 5 and the second transmission wheel group 6 to work. If it is necessary to control the first transmission wheel group 5 and the second transmission wheel group 6, the built-in limit rod 16 can be driven by the adapter rod 14 to move inside the active rod 15, and then the built-in limit rod 16 can extend or retract inside the active rod 15, and then the active wheel drive seat 28 outside the built-in limit rod 16 will drive the active wheel 12 to slide, so that the active wheel 12 can mesh with the first transmission wheel group 5 or the second transmission wheel group 6 alone when sliding, or the active wheel 12 moves to the first transmission wheel group 5. When the driving wheel 12 is in the middle of the first transmission wheel group 5 or the second transmission wheel group 6, the driving wheel 12 can mesh with the first transmission wheel group 5 and the second transmission wheel group 6 at the same time, and drive the first transmission wheel group 5 and the second transmission wheel group to transmit, so as to control the meshing state of the driving wheel 12 with the first transmission wheel group 5 and the second transmission wheel group 6, so that the running state of the first transmission wheel group 5 and the second transmission wheel group 6 can be controlled, so that when the device is used for the walking of the tillage equipment, the driving wheel 12 can be meshed with the second transmission wheel group 6 to control the walking wheel to walk, and the through hole controls the rotation speed of the driving wheel 12 to increase the walking speed of the tillage equipment, and the device is used for tillage. When the soil is broken, the driving wheel 12 can be connected to the first transmission wheel group 5 and the second transmission wheel group 6 by meshing at the same time, so that the tillage equipment can be moved while tilling the land, and can be used for driving multiple parts. When the driving wheel 12 is meshed with the first transmission wheel group 5 alone, the tillage component is controlled alone to break the soil, and the maintenance and cleaning of the tillage component in the later stage is convenient. At the same time, when the active rod 15 rotates, it will drive the built-in reciprocating screw rod 21 to rotate, and then the built-in reciprocating screw rod 21 will push the push rod 22 to reciprocate, and the push rod 22 will push the liquid-conducting membrane 20 to expand or contract, and the liquid-conducting membrane 20 is deformed. A negative pressure state is formed inside the liquid guiding box 4, which can generate suction force among the liquid guiding box 4, the liquid inlet pipe 11 and the filter box 7, so that the lubricating liquid inside the liquid collecting plate 8 will be sucked into the liquid guiding box 4, and at the same time, the lubricating liquid in the liquid guiding box 4 can push open the edge gap of the second liquid blocking plate 25 and enter the liquid outlet box 26, and the second liquid blocking plate 25 can prevent the lubricating liquid inside the liquid outlet box 26 from flowing back into the liquid guiding box 4, and the solution is introduced into the liquid guiding component through the liquid outlet box 26 and the liquid outlet pipe 10 to transport the lubricating liquid. At the same time, the device does not require an additional driving structure, reduces the setting of other power devices, reduces the production cost, and also facilitates the subsequent maintenance work. At the same time, when the lubricating liquid enters the filter box 7,The filter medium 18 inside the filter box 7 plays a role in filtering impurities, and can filter out impurities in the lubricating liquid. At the same time, after opening the sealing plug 19, the user can replace the filter medium 18, which is convenient for the user to perform maintenance later. Each liquid guide cavity 30 is connected to the corresponding liquid guide seat 9, so that the lubricating liquid inside each liquid guide seat 9 will not be confused. At the same time, the lubricating liquid inside the liquid guide seat 9 is discharged through the liquid outlet 31, and the lubricating liquid can be accurately introduced into the built-in drive component to lubricate the built-in drive component, thereby improving the use effect of the lubricating liquid inside the device.

Claims

1. A transmission mechanism for a four-wheel drive micro-tillage machine, comprising a transmission box body (1), wherein the transmission box body (1) is externally in an inverted "V" shape, and is characterized in that: It comprises a transmission assembly, which is arranged at the tip of a transmission box body (1); A built-in drive assembly, wherein the built-in drive assembly is arranged inside the transmission box body (1); Two liquid guide components, the two liquid guide components are arranged at the openings of the transmission box body (1); A liquid pumping assembly, the liquid pumping assembly is transmission-connected to the transmission assembly; The transmission assembly comprises an active rod (15) and an active wheel control assembly, wherein the active rod (15) is rotatably arranged on the outer wall of the transmission box body (1), a belt driving wheel (3) is sleeved on one end of the active rod (15), and an active wheel (12) is slidably arranged on the other end of the active rod (15), a blind hole is opened in the center of the active rod (15), and the active wheel control assembly is arranged inside the active rod (15); The liquid extraction assembly comprises a liquid guide box (4), a filter box (7) and a liquid collecting plate (8); a liquid guide membrane (20) and a push rod limiting plate (23) are arranged inside the liquid guide box (4); a liquid outlet box (26) is connected to one side of the liquid guide box (4); the liquid outlet box (26) is communicated with the inside of the liquid guide box (4); a rectangular through hole is provided in the central through hole of the push rod limiting plate (23); a push rod (22) is passed through the central through hole of the push rod limiting plate (23); a threaded hole is provided at one end of the push rod (22); an arc-shaped sheet is provided at the other end of the push rod (22); the arc-shaped end of the push rod (22) is pressed against one side of the liquid guide membrane (20); a built-in reciprocating screw (21) is provided in the threaded hole at one end of the push rod (22); and the built-in reciprocating screw (21) is provided One end is fixed to one end of the active rod (15), and there are two filter boxes (7) in total. The two filter boxes (7) are arranged below the transmission box body (1), and there are two liquid collecting plates (8) in total. The two liquid collecting plates (8) are arc-shaped on the outside, and through holes are provided on the inside of the two liquid collecting plates (8). The outer wall of the transmission box body (1) is provided with a liquid guide hole (17), and the two liquid collecting plates (8) are connected to the filter box (7) through the liquid guide hole (17). The tops of the two filter boxes (7) are connected with liquid inlet pipes (11), and the other ends of the liquid inlet pipes (11) are connected to the lower end of the liquid guide box (4). The top of the liquid outlet box (26) is connected with a liquid outlet pipe (10), and the other end of the liquid outlet pipe (10) is connected to the liquid guide component; A first liquid blocking sheet (24) is provided at the connection between the liquid guiding box (4) and the liquid inlet pipe (11), and a second liquid blocking sheet (25) is provided at the connection between the liquid outlet box (26) and the liquid guiding box (4).

2. The transmission mechanism for a four-wheel drive micro-tillage machine according to claim 1, characterized in that: One side of the transmission box body (1) is in an open shape, and a transmission box fixing cover (2) is arranged outside the opening of the transmission box body (1).

3. The transmission mechanism for a four-wheel drive micro-tillage machine according to claim 1, characterized in that: The built-in drive assembly comprises a first transmission wheel group (5) and a second transmission wheel group (6), and the first transmission wheel group (5) and the second transmission wheel group (6) are meshed with a driving wheel (12), the first transmission wheel group (5) and the second transmission wheel group (6) are respectively arranged at the open end of the transmission box body (1), and the distance between the first transmission wheel group (5) and the belt driving wheel (3) is greater than the distance between the second transmission wheel group (6) and the belt driving wheel (3).

4. The transmission mechanism for a four-wheel drive micro-tillage machine according to claim 1, characterized in that: The liquid guide assembly comprises a liquid guide plate (13), wherein two liquid guide plates (13) are provided, wherein a plurality of groups of liquid guide cavities (30) are provided inside the two liquid guide plates (13), and a plurality of liquid guide seats (9) are provided on the outer wall of the liquid guide plate (13), wherein each of the liquid guide seats (9) is connected to each of the liquid guide cavities (30), and a liquid outlet hole (31) is provided on the outer wall of the liquid guide seat (9), and the liquid guide seat (9) corresponds to the meshing portion of the built-in driving assembly.

5. The transmission mechanism for a four-wheel drive micro-tillage machine according to claim 1, characterized in that: The driving wheel control assembly comprises a built-in limit rod (16), the built-in limit rod (16) is arranged inside the driving rod (15), the outer wall of the built-in limit rod (16) is provided with two driving wheel drive seats (28), the outer wall of the active rod (15) is provided with a drive seat moving hole (29) matching the driving wheel drive seat (28), the driving wheel drive seat (28) is slidably arranged in the drive seat moving hole (29), the inner side of the driving wheel (12) is provided with a groove matching the driving wheel drive seat (28), and the end of the built-in limit rod (16) away from the driving wheel drive seat (28) is connected to a lever assembly.

6. The transmission mechanism for a four-wheel drive micro-tillage machine according to claim 5, characterized in that: The lever assembly comprises a transfer rod (14), one end of which is provided with a rectangular through hole, and a rotating seat (32) is hingedly arranged in the through hole at one end of the transfer rod (14), a through hole is arranged at the center of the rotating seat (32), a bearing (33) is fixed in the center through hole of the rotating seat (32), and the bearing (33) is sleeved on the outside of the built-in limiting rod (16).

7. The transmission mechanism for a four-wheel drive micro-tillage machine according to claim 1, characterized in that: The interior of the filter box (7) is filled with a filter medium (18), and a threaded hole is provided at the lower end of the filter box (7), and a sealing plug (19) is provided in the threaded hole at the lower end of the filter box (7).

8. The transmission mechanism for a four-wheel drive micro-tillage machine according to claim 7, characterized in that: The filter medium (18) is made of composite fiber, and the filter medium (18) is filled inside the filter box (7).

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