Four-wheel miniature tillage equipment

Abstract

The utility model belongs to the technical field of agricultural machinery, and particularly relates to four-wheel miniature tillage equipment which comprises a power assembly and further comprises a front gearbox, a second steering transmission part, a rear transmission case, a front axle, a rear axle, a tillage mechanism and an adjusting structure. The front gearbox is in transmission connection with the rear transmission case through a second steering transmission part; the power output of the front gearbox drives a front wheel shaft, the power output of the rear gearbox drives a rear wheel shaft and a tilling mechanism, and the front wheel shaft and the rear wheel shaft are both provided with walking wheels; the adjusting structure is used for adjusting the height of the tillage mechanism; the utility model aims to realize a four-wheel-drive tillage mode, has larger traction force under all road conditions, and can ensure uniform tire wear and increase of starting and climbing capabilities; the tilling depth of the tilling mechanism can be adjusted through the adjusting structure, and the tilling mechanism is suitable for various tilling conditions.

Description

Technical Field

[0001] The utility model relates to the technical field of agricultural machinery, in particular to a four-wheel micro-tillage equipment. Background Art

[0002] Tillers and tractors are both agricultural machinery that can be used for farming.

[0003] 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. It is widely used in dry land, paddy fields, orchards, etc. in plains, mountainous areas, and hills. The user group of micro-tillage machines is mainly farmers, and they are often used in mountainous and hilly areas. They must take into account low price, light weight and small size. At present, the mainstream micro-tillage machines on the market are mainly hand-held micro-tillage machines. The existing micro-tillage machines include a frame, a handrail frame, a power part, a gearbox, etc. The power part transmits the torque to the gearbox through a clutch or a belt for speed change. After the gearbox changes speed, it transmits the torque to the drive wheel shaft to drive the tillage machine, such as rotary tillage, weeding, ditching and other operations.

[0004] Existing micro-tillers mainly control the gear position of the gearbox through a one-lever type, with the farming scenario as the main consideration. The applicable scenarios are relatively simple and the power is not strong. For example, when it needs to tow goods or climb steep slopes, the micro-tiller is prone to slipping, insufficient power, and uncontrollable tillage depth. Utility Model Content

[0005] In order to overcome the shortcomings of the prior art, the purpose of the utility model is to provide a four-wheel micro-tillage equipment to realize a four-wheel drive tillage mode, have greater traction under all road conditions, ensure uniform tire wear and increase starting and climbing capabilities; the tillage depth of the tillage mechanism can be adjusted by adjusting the structure, and is suitable for a variety of tillage conditions.

[0006] The technical solution adopted by the utility model is as follows:

[0007] A four-wheeled micro-tillage equipment comprises a power assembly, a front gearbox, a rear transmission box, a front wheel axle, a rear wheel axle, a first steering transmission part, a tillage mechanism and an adjustment structure, wherein the power output end of the power assembly is transmission-connected to the front gearbox, and the front gearbox is transmission-connected to the rear transmission box;

[0008] The power output of the front gearbox drives the front wheel axle, the power output of the rear transmission box drives the rear wheel axle and the first steering transmission part, and the first steering transmission part drives the tillage mechanism;

[0009] The adjustment structure and the first steering transmission part are used to adjust the height of the tilling mechanism.

[0010] Compared with the prior art, the beneficial effects of the present invention are:

[0011] 1. The gear position of the tiller is changed by setting the front gearbox to control the driving speed. The power of the powertrain is transmitted to the rear wheels and the tilling mechanism through the rear transmission box to realize the four-wheel drive tillage mode. It has greater traction under all road conditions, which can ensure uniform tire wear and increase starting and climbing capabilities.

[0012] 2. When tilling, the powertrain drives and cooperates with the weight of the tilling equipment to drive the tilling equipment to till the land. During the tilling process, the operator does not need to hold the hand or apply downward force, which greatly reduces the labor intensity.

[0013] 3. When the micro-tillage machine is in the tillage state, the tillage depth of the tillage mechanism can be adjusted by adjusting the structural structure and the first steering transmission part, which is suitable for various tillage conditions.

[0014] As a preferred embodiment of the utility model, the rear transmission box includes a rear housing and a rear transmission assembly, and the rear transmission assembly includes a rear power input shaft, a rear power intermediate shaft and a rear power output shaft installed in the rear housing;

[0015] A first bevel gear is fixedly mounted on the rear power intermediate shaft, and first bevel gears are fixedly mounted on both the rear power input shaft and the rear power output shaft. The first bevel gear meshes with the first bevel gear, and the rear power intermediate shaft is drivingly connected to the driving rear wheel shaft.

[0016] Beneficial effect: The first bevel gear is meshed with the first bevel gears on both sides to transmit the power of the rear power input shaft to the rear power intermediate shaft, and the rear power intermediate shaft is used to transmit the power to the driving rear wheel shaft, thereby driving the rear wheel and the tillage mechanism to operate.

[0017] As a preferred embodiment of the utility model, the rear power intermediate shaft and the driving rear wheel shaft are driven by multiple sets of double gears, and the rotation speed of the multiple sets of double gears is gradually slowed down.

[0018] Beneficial effects: In order to better cultivate in various terrains and environments, the radius of the rear wheel is often larger than that of the front wheel. The speed reduction is achieved through multiple sets of double gears to ensure that the linear speed of the front and rear wheels is the same, making the structure of the whole machine simpler and more compact, light in weight and small in size.

[0019] As a preferred embodiment of the utility model, the adjustment structure includes a telescopic assembly and a rotating support frame, the movable end of the telescopic assembly is hinged to the tilling mechanism, one end of the first steering transmission part is transmission-connected to the power output end of the rear transmission box, the other end of the first steering transmission part is transmission-connected to the power input end of the tilling mechanism, the rotating support frame is rotatably connected to the rear transmission box, and the tilling mechanism is fixedly mounted on the rotating support frame.

[0020] Compared with the prior art, the beneficial effects of the present invention are:

[0021] 1. Through the mutual cooperation of the first steering transmission part, the telescopic assembly and the rotating support frame, the tillage mechanism rotates with the connection between the rotating support frame and the rear transmission box as the fulcrum, so as to lift or lower the tillage mechanism. When the micro-tillage machine is in the driving state, the tillage mechanism is higher than the ground. When the micro-tillage machine is in the tillage state, the tillage mechanism is lower than the ground. The driving state and the tillage state can be switched without disassembling the tillage mechanism.

[0022] 2. When the micro-tillage machine is in the tillage state, the tillage depth of the tillage mechanism can be adjusted, which is suitable for a variety of tillage conditions.

[0023] As a preferred embodiment of the utility model, the first steering transmission part includes a front universal joint, a first connecting shaft, and a rear universal joint connected in sequence, the front universal joint or the rear universal joint is slidingly connected to the first connecting shaft, the front universal joint is transmission connected to the output end of the rear gearbox, and the rear universal joint is transmission connected to the input end of the tillage mechanism.

[0024] Beneficial effects:

[0025] 1. When the tillage mechanism adjusts its height or the tillage shakes, the tillage mechanism and the rear wheel will be relatively offset. By setting the front universal joint and the rear universal joint, the degree of freedom between the tillage mechanism and the rear wheel can be compensated, which can extend the service life of the tillage equipment.

[0026] 2. By setting a first connecting shaft with a sliding connection, the first steering transmission part as a whole can be retracted within a certain range, and the height of the tilling mechanism can be adjusted by cooperating with the telescopic component, and disassembly and assembly are more convenient.

[0027] As a preferred embodiment of the present utility model, through holes are provided on the rotating support frame and the rear transmission box, a rotating shaft is detachably mounted in the through hole of the rotating support frame, and the rotating shaft is rotatably connected to the rear transmission box.

[0028] Beneficial effect: By providing a detachable rotating shaft, the overall disassembly and assembly of the support frame is more convenient.

[0029] As a preferred embodiment of the present utility model, the telescopic assembly is a hydraulic cylinder and a hydraulic pump transmission-connected to the power assembly, and the hydraulic pump drives the hydraulic cylinder to telescope.

[0030] Beneficial effect: The power source is provided to the hydraulic pump through the power train, and there is no need to set up an additional power source to control the hydraulic cylinder, thus saving costs.

[0031] As a preferred embodiment of the utility model, the cylinder body of the hydraulic cylinder can be detachably mounted on the tillage mechanism and is rotatably connected to the tillage mechanism, and the piston rod of the hydraulic cylinder can be detachably mounted on the rear transmission box and is rotatably connected to the rear transmission box.

[0032] Beneficial effect: When disassembling the tillage mechanism, it is sufficient to remove the hydraulic cylinder and the rotating shaft. Since the front universal joint or the rear universal joint is slidingly connected to the first connecting shaft, the first connecting shaft is directly disconnected, making the tillage mechanism easy to disassemble and assemble, and can be replaced by other operating machinery to meet different usage requirements.

[0033] As a preferred embodiment of the utility model, the tilling mechanism includes a tilling power input shaft and a tilling power output shaft, the first steering transmission part is connected to the tilling power output shaft, the tilling power input shaft and the tilling power output shaft are driven by a sprocket, and a rotary tilling wheel is fixedly connected to the tilling power output shaft.

[0034] Beneficial effects: Due to the characteristics of the rotary tiller wheel when it is working, the tilling mechanism is subjected to a large impact force. The power is transmitted through the sprocket and can withstand a large load. It is suitable for high-load transmission and makes the rotary tiller wheel run more smoothly. Compared with gear transmission, the installation is simpler and the maintenance cost is low.

[0035] As a preferred embodiment of the utility model, it also includes a hydraulic pump that drives the hydraulic cylinder to move. A hydraulic pump power shaft is rotatably installed on the rear transmission box. The hydraulic pump power shaft is transmission-connected to the rear power intermediate shaft, and the hydraulic pump power shaft provides power for the hydraulic pump.

[0036] Beneficial effect: The hydraulic pump is driven by the power of the rear gearbox, and no additional power source is required. BRIEF DESCRIPTION OF THE DRAWINGS

[0037] Figure 1 This is a schematic diagram of the structure of a four-wheeled micro-tillage equipment of the utility model;

[0038] Figure 2 This is a schematic diagram of the transmission structure of a four-wheel micro-tillage equipment embodiment of the utility model;

[0039] Figure 3 It is a structural schematic diagram of an adjustment structure in an embodiment of a four-wheel micro-tillage equipment of the utility model;

[0040] Figure 4 The utility model is a schematic diagram of the structure of a rear gearbox in a four-wheel micro-tillage equipment embodiment.

[0041] The reference numerals include: hydraulic cylinder 1, first steering transmission part 2, front universal joint 21, first connecting shaft 22, rear universal joint 23, power assembly 31, front gearbox 32, second steering transmission part 33, rear gearbox 34, rear housing 341, rear power input shaft 342, rear power intermediate shaft 343, rear power intermediate shaft 344, first disc bevel gear 345, first bevel gear 346, double gear 347, front wheel axle 35, rear wheel axle 36, tillage mechanism 4, box body 41, rotating support frame 42, rotating shaft 43, cotter pin 44, bolt 45, tillage power input shaft 46, tillage power output shaft 47, hydraulic pump 51, hydraulic pump power shaft 52. DETAILED DESCRIPTION

[0042] Typical embodiments that embody the features and advantages of the present invention will be described in detail in the following description. It should be understood that the present invention can have various changes in different embodiments without departing from the scope of the present invention, and the descriptions and illustrations therein are essentially for illustrative purposes rather than for limiting the present invention.

[0043] In the description of the present application, the terms "first", "second", "one side", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the structure referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0044] like Figure 3 As shown, this embodiment discloses an adjustment structure, including a telescopic assembly, a first steering transmission part 2 installed on the rear transmission box 34 and a rotating support frame 42, the moving end of the telescopic assembly is hinged to the tillage mechanism 4, one end of the first steering transmission part 2 is transmission-connected to the power output end of the rear transmission box 34, the other end of the first steering transmission part 2 is transmission-connected to the power input end of the tillage mechanism 4, the rotating support frame 42 is rotationally connected to the rear transmission box 34, and the tillage mechanism 4 is fixedly installed on the rotating support frame 42; the tillage mechanism 4 can be rotated at an angle in a vertical plane relative to the rear transmission box 34 through the first steering transmission part 2, the telescopic assembly and the rotating support frame 42.

[0045] In this embodiment, the telescopic assembly is preferably one, but may also be multiple; the telescopic assembly and the rotating support frame 42 are respectively arranged on both sides of the first steering transmission part 2, or may be arranged on the same side.

[0046] The first steering transmission part 2 includes a front universal joint 21, a first connecting shaft 22, and a rear universal joint 23 which are connected in sequence. The rear universal joint 23 is slidably connected to the first connecting shaft 22. The front universal joint 21 is transmission-connected to the output end of the rear transmission box 34. The rear universal joint 23 is transmission-connected to the input end of the tillage mechanism 4.

[0047] The rotating support frame 42 and the rear transmission box 34 are both provided with through holes, and a rotating shaft 43 is detachably mounted in the through hole of the rotating support frame 42, and the rotating shaft 43 is rotatably connected to the rear housing 341;

[0048] The cylinder body of the hydraulic cylinder 1 is detachably mounted on the rear housing 341 and is rotatably connected to the tilling mechanism 4 . The piston rod of the hydraulic cylinder 1 is detachably mounted on the rear transmission box 34 and is rotatably connected to the rear transmission box 34 .

[0049] like Figure 1 As shown, the utility model also provides a four-wheeled micro-tillage device, including the above-mentioned tillage adjustment structure, and also includes a power assembly 31, a front gearbox 32, a second steering transmission part 33, a rear transmission box 34, a front wheel axle 35, a rear wheel axle 36 and a tillage mechanism 4, wherein the power output end of the power assembly 31 is transmission-connected with the front gearbox 32, and the front gearbox 32 is transmission-connected with the rear transmission box 34 through the second steering transmission part 33;

[0050] The power output of the front gearbox 32 drives the front wheel axle 35, and the power output of the rear transmission box 34 drives the rear wheel axle 36 and the tillage mechanism 4. Both the front wheel axle 35 and the rear wheel axle 36 are equipped with walking wheels.

[0051] Among them, Figure 2 and Figure 4 As shown, the rear transmission box 34 includes a rear housing 341 and a rear transmission assembly, and the rear transmission assembly includes a rear power input shaft 342, a rear power output shaft 343 and a rear power intermediate shaft 344 installed in the rear housing 341;

[0052] The rear power intermediate shaft 344 is fixedly mounted with a first bevel gear 345 , and the rear power input shaft 342 and the rear power output shaft 343 are both fixedly mounted with first bevel gears 346 , the first bevel gear 346 is meshed with the first bevel gear 345 , and the rear power intermediate shaft 344 is drivingly connected with the driving rear wheel shaft 36 .

[0053] Among them, Figure 4 As shown, the rear power intermediate shaft 344 and the driving rear wheel shaft 36 are transmitted through multiple sets of double gears 347, and the rotation speed of the multiple sets of double gears 347 is gradually slowed down.

[0054] Among them, Figure 3As shown, the tillage mechanism 4 includes a box body 41, and the rotating support frame 42 is fixedly connected to the box body 41;

[0055] The telescopic assembly is a hydraulic cylinder 1, the cylinder body of the hydraulic cylinder 1 is detachably mounted on the rear housing 341 through a cotter pin 44, and the piston rod of the hydraulic cylinder 1 is detachably mounted on the box body 41 through a cotter pin 44;

[0056] The tilling mechanism 4 includes a tilling power input shaft 46 installed in a box body 41 , the rear universal joint 23 is installed on the tilling power input shaft 46 , and the front universal joint 21 is installed on the rear power output shaft 343 .

[0057] In this embodiment, the rotating shaft 43 is a hollow shaft. During installation, a bolt 45 is passed through the hollow shaft and then fixed with a nut. The cotter pin 44 can be replaced with other latch pins.

[0058] Among them, Figure 2 As shown, the tillage mechanism 4 includes a tillage power input shaft 46 and a tillage power output shaft 47, the rear universal joint 23 is fixedly connected to the tillage power output shaft 47, the tillage power input shaft 46 and the tillage power output shaft 47 are driven by a sprocket, and a rotary tillage wheel is fixedly connected to the tillage power output shaft 47.

[0059] Among them, Figure 2 and Figure 3 As shown, a hydraulic pump power shaft 52 is rotatably mounted on the rear housing 341 , and the hydraulic pump power shaft 52 is drivingly connected to the rear power intermediate shaft 344 , and the hydraulic pump power shaft 52 provides power for the hydraulic pump 51 .

[0060] In this embodiment, the rear power intermediate shaft 344 and the hydraulic pump power shaft 52 are connected via gear transmission.

[0061] Specific use (working) process:

[0062] When switching to the driving state, the hydraulic cylinder 1 contracts. Since the rear universal joint 23 and the first connecting shaft 22 are slidably connected, both ends of the hydraulic cylinder 1 are hinged, so that the tilling mechanism 4 is lifted up and does not contact the ground. The shift assembly is used to cut off the power transmission between the rear gearbox 34 and the tilling mechanism 4.

[0063] When switching to the tillage state, the hydraulic cylinder 1 extends, and the tillage mechanism 4 moves downward to contact the ground. According to the tillage demand, the extension amount of the hydraulic cylinder 1 is adjusted, and then the tillage depth of the tillage mechanism 4 is adjusted. The shift assembly is used to start the power transmission between the rear gearbox 34 and the tillage mechanism 4;

[0064] When the tillage mechanism 4 needs to be disassembled, the bolt 45 is loosened, the cotter pin 44 is removed, the rotating shaft 43 is pulled out, the rear universal joint 23 is separated from the first connecting shaft 22, and the oil pipe connected to the hydraulic cylinder 1 is removed to complete the disassembly.

[0065] The above-mentioned implementation modes are only preferred implementation modes of the present invention, and cannot be used to limit the protection scope of the present invention. Any non-substantial changes and substitutions made by technicians in this field on the basis of the present invention shall fall within the scope of protection required by the present invention.

Claims

1. A four-wheeled micro-tillage device, comprising a power assembly, characterized in that: It also includes a front gearbox, a rear transmission box, a front wheel axle, a rear wheel axle, a first steering transmission part, a tillage mechanism and an adjustment structure, wherein the power output end of the power assembly is transmission-connected to the front gearbox, and the front gearbox is transmission-connected to the rear transmission box; The power output of the front gearbox drives the front wheel axle, the power output of the rear transmission box drives the rear wheel axle and the first steering transmission part, and the first steering transmission part drives the tillage mechanism; The adjustment structure and the first steering transmission part are used to adjust the height of the tilling mechanism.

2. The four-wheel micro-tillage equipment according to claim 1, characterized in that: The rear transmission case comprises a rear housing and a rear transmission assembly, wherein the rear transmission assembly comprises a rear power input shaft, a rear power intermediate shaft and a rear power output shaft installed in the rear housing; A first bevel gear is fixedly mounted on the rear power intermediate shaft, and first bevel gears are fixedly mounted on both the rear power input shaft and the rear power output shaft. The first bevel gear meshes with the first bevel gear, and the rear power intermediate shaft is drivingly connected to the driving rear wheel shaft.

3. The four-wheeled micro-tillage equipment according to claim 2, characterized in that: The rear power intermediate shaft and the driving rear wheel shaft are driven by multiple sets of double gears, and the rotation speed of the multiple sets of double gears is gradually slowed down.

4. The four-wheel micro-tillage equipment according to claim 1, characterized in that: The adjustment structure includes a telescopic assembly and a rotating support frame, the moving end of the telescopic assembly is hinged to the tillage mechanism, one end of the first steering transmission part is transmission-connected to the power output end of the rear transmission box, the other end of the first steering transmission part is transmission-connected to the power input end of the tillage mechanism, the rotating support frame is rotationally connected to the rear transmission box, and the tillage mechanism is fixedly mounted on the rotating support frame; The tillage mechanism can rotate at an angle on a vertical plane relative to the rear transmission box through the first steering transmission part, the telescopic component and the rotating support frame.

5. The four-wheeled micro-tillage equipment according to claim 4, characterized in that: The first steering transmission part includes a front universal joint, a first connecting shaft, and a rear universal joint connected in sequence. The front universal joint or the rear universal joint is slidingly connected to the first connecting shaft, the front universal joint is transmission connected to the output end of the rear gearbox, and the rear universal joint is transmission connected to the input end of the tillage mechanism.

6. The four-wheel micro-tillage equipment according to claim 4, characterized in that: The rotating support frame and the rear transmission box are both provided with through holes, and a rotating shaft is detachably mounted in the through hole of the rotating support frame, and the rotating shaft is rotatably connected to the rear transmission box.

7. The four-wheeled micro-tillage equipment according to claim 4, characterized in that: The telescopic assembly is a hydraulic cylinder and a hydraulic pump transmission-connected to the power assembly, and the hydraulic pump drives the hydraulic cylinder to telescope.

8. The four-wheeled micro-tillage equipment according to claim 7, characterized in that: The cylinder body of the hydraulic cylinder can be detachably mounted on the tillage mechanism and is rotatably connected to the tillage mechanism; the piston rod of the hydraulic cylinder can be detachably mounted on the rear transmission box and is rotatably connected to the rear transmission box.

9. The four-wheel micro-tillage equipment according to claim 1, characterized in that: The tillage mechanism includes a tillage power input shaft and a tillage power output shaft, the first steering transmission part is connected to the tillage power output shaft, the tillage power input shaft and the tillage power output shaft are driven by a sprocket, and a rotary tillage wheel is fixedly connected to the tillage power output shaft.

10. The four-wheel micro-tillage equipment according to claim 7, characterized in that: It also includes a hydraulic pump for driving the hydraulic cylinder to move. A hydraulic pump power shaft is rotatably installed on the rear transmission box. The hydraulic pump power shaft is transmission-connected to the rear power intermediate shaft. The hydraulic pump power shaft provides power for the hydraulic pump.

Images