Multifunctional electric farming machine

Abstract

The utility model discloses a multifunctional electric farming machine which comprises a tractor, a rotary tillage mechanism and a lifting bracket mechanism arranged at the rear end of the tractor and used for lifting the rotary tillage mechanism. The upper supporting rod and the lower supporting rod are used for being connected with the supporting connecting frame in a buckled mode, and the left connecting plate and the right connecting plate are arranged at the two ends of the upper supporting rod and the two ends of the lower supporting rod in a sleeving mode and used for being connected with the lifting bracket mechanism in a pivoted mode. An upper buckling groove and a lower buckling groove which can be buckled to the upper supporting rod and the lower supporting rod are formed in the upper end and the lower end of the two sides of the supporting connecting frame correspondingly, and a bolt set or a plug pin penetrates through the supporting connecting frame to be locked and fixed to the left connecting plate and the right connecting plate.

Description

Technical Field:

[0001] The utility model relates to the field of agricultural machinery, specifically a multi-functional electric farming machine. Background Art:

[0002] Currently, large-scale agricultural tillage machinery mainly consists of two parts: a locomotive and a tillage device. The locomotive generally uses a tractor driven by a diesel internal combustion engine. The tillage device is installed on the locomotive or towed by the locomotive to achieve operations in the farmland. With the continuous development of new energy technologies, currently, small and medium-sized farming machines on the market have gradually started to use electric tractors as the power device of the farming machine. Compared with traditional tractors, electric tractors not only save energy and are environmentally friendly, but also have the advantages of smaller volume, lower noise, lower maintenance costs, simple operation (can be driverless), and high reliability, and are increasingly favored by the market.

[0003] Currently, farming machines using electric tractors on the market are usually in a driverless mode and work by remotely operating the farming machine. For example, a kind of agricultural rotary tiller with the Chinese patent publication number: CN 114271046 A. This patent includes: a traction locomotive 1, a rotary tillage mechanism 2, a traction mechanism 30 for connecting the traction locomotive 1 and the rotary tillage mechanism 2, a flipping drive member 6, and a support mechanism 8. However, this patent solution still has the following deficiencies:

[0004] 1. The rotary tillage mechanism 2 is fixed on the traction locomotive 1 through the traction mechanism 30, but the traction mechanism 30 is fastened with bolts, which is inconvenient for disassembly and assembly, and the rotary tillage mechanism 2 cannot be quickly replaced and maintained, resulting in poor versatility;

[0005] 2. Since the cutter shaft 22 is directly driven by the rotary tillage motors 23 at both ends, two rotary tillage motors 23 need to maintain synchronization. Otherwise, torque will be generated on the cutter shaft 22, resulting in an increase in internal stress, and the cutter shaft 22 is likely to break during tillage. Especially during the speed change process of the cutter shaft 22, it is usually difficult for the two rotary tillage motors 23 to maintain synchronous speed change, resulting in different stress changes at both ends of the cutter shaft 22, which is likely to cause increased wear and reduced lifespan. Moreover, when the rotary tiller is working, the soil is turned over, resulting in soil often falling into the belt drive assembly 24 directly linked to the cutter shaft 22 during operation, causing the transmission mechanism to jam;

[0006] 3. Due to the lack of sufficient support for the traction mechanism 30, the entire farming machine will swing left and right due to uneven ground during driving or in the retracted state, unable to maintain balance. If the swing amplitude is too large, it may also cause the vehicle to overturn;

[0007] 4. Two traction motors 11 are respectively used to drive the crawler drive wheels on the left and right sides to realize the drive of the locomotive body 10. By controlling the outputs of the two traction motors 11 on the left and right, the forward and backward movement and steering of the entire receiving vehicle body 10 are controlled. This causes both traction motors 11 to be in a working state whether the agricultural tractor is moving forward or turning. This not only increases energy consumption and affects the battery endurance of the agricultural tractor, but also causes the motors to overheat due to continuous long-term operation, affecting the service life of the motors. At the same time, when the agricultural tractor needs to keep moving in a straight line, it is necessary to ensure that the transmission mechanisms of the two crawlers are completely synchronized, otherwise there will be deviation.

[0008] In view of this, the inventor proposes the following technical solutions. Summary of the Utility Model:

[0009] The purpose of the present utility model is to overcome the deficiencies of the prior art and provide a multifunctional electric agricultural tractor.

[0010] To solve the above technical problems, the present utility model adopts the following technical solutions: A multifunctional electric agricultural tractor, comprising: a tractor, a rotary tillage mechanism, and a lifting bracket mechanism disposed at the rear end of the tractor and used for lifting the rotary tillage mechanism. A snap-fastening mounting frame for disassembling and assembling the rotary tillage mechanism is provided on the lifting bracket mechanism. The snap-fastening mounting frame includes an upper support rod and a lower support rod for snap-fastening a support connection frame, and left and right connection plates sleeved on both ends of the upper support rod and the lower support rod and used for pivotally connecting with the lifting bracket mechanism. Upper snap-fastening grooves and lower snap-fastening grooves capable of being snap-fastened to the upper support rod and the lower support rod are respectively provided at the upper and lower ends on both sides of the support connection frame, and are locked and fixed by passing bolts or pins through the support connection frame and the left and right connection plates.

[0011] Furthermore, in the above technical solution, the lifting bracket mechanism includes four tie rod assemblies disposed between the snap-fastening mounting frame and the tractor, a lifting lower connecting rod pivotally mounted on the snap-fastening mounting frame, a lifting upper connecting rod pivotally mounted on the tractor and movably pivotally connected with the lifting lower connecting rod, and a driving ejector rod pivotally mounted on the tractor and pivotally connected with the lifting upper connecting rod to push it to swing. Among them, the four tie rod assemblies are respectively pivotally connected to the four corners of the snap-fastening mounting frame.

[0012] Furthermore, in the above technical solution, the drawbar assembly includes a support sleeve, a first fish-eye ball head and a second fish-eye ball head telescopically arranged at both ends of the support sleeve, a first fixing bolt rod for fixing the first fish-eye ball head to the snap-fastening quick-release frame, a first fish-eye mounting sleeve and a second fish-eye mounting sleeve sleeved on the first fixing bolt rod and pressing against both sides of the first fish-eye ball head, a first fish-eye ball arranged at the end of the first fish-eye ball head and used for mating and docking with the first fish-eye mounting sleeve and the second fish-eye mounting sleeve, a second fixing screw rod for fixing the second fish-eye ball head to the tractor, a third fish-eye mounting sleeve and a fourth fish-eye mounting sleeve sleeved on the second fixing screw rod and pressing against both sides of the second fish-eye ball head, and a second fish-eye ball arranged at the end of the second fish-eye ball head and used for mating and docking with the third fish-eye mounting sleeve and the fourth fish-eye mounting sleeve.

[0013] Furthermore, in the above technical solution, the tractor includes a frame main body, a left crawler wheel and a right crawler wheel arranged on both sides of the frame main body, a drive module arranged in the frame main body and used for driving the left crawler wheel and the right crawler wheel to work, and a battery unit arranged in the frame main body and used for supplying electric energy to the drive module. Among them, the drive module is located at the front end of the frame main body, the lifting bracket mechanism is hinged and installed at the rear end of the frame main body, and the battery unit is located in the middle of the frame main body.

[0014] Furthermore, in the above technical solution, the drive module includes a speed change gearbox, a steering servo arranged on the speed change gearbox and used for controlling the steering of the tractor, a shift servo arranged on the speed change gearbox and used for controlling the forward and backward movement of the tractor, a traveling motor arranged on the speed change gearbox, and a transmission pulley group arranged between the traveling motor and the speed change gearbox.

[0015] Furthermore, in the above technical solution, an installation bracket for supporting the traveling motor and the transmission pulley group is arranged on the speed change gearbox. The installation bracket includes a support vertical plate fixed to the speed change gearbox and a sliding block slidably arranged on the support vertical plate and used for fixing the traveling motor. One end of the support vertical plate is provided with an installation groove for the sliding block to move, and a plurality of second strip-shaped grooves for installing and adjusting the position of the sliding block are arranged in the installation groove.

[0016] Furthermore, in the above technical solution, the steering servo includes a servo gearbox, a servo rotor swingably arranged at the bottom of the servo gearbox, a steering motor arranged on the servo gearbox and used for driving the servo rotor to swing, and a plurality of reduction gear pairs arranged in the servo gearbox and used for transmitting power between the steering motor and the servo rotor.

[0017] Furthermore, in the above technical solution, the speed-changing gearbox includes a box body, an input main shaft, a left output shaft, a right output shaft, a speed-changing main shaft, and a clutch main shaft. Among them, a speed-changing gear set for transmitting power is provided on the input main shaft and the speed-changing main shaft, and a clutch gear set for transmitting power is provided on the clutch main shaft, the left output shaft, and the right output shaft. Moreover, a left clutch module and a right clutch module that can contact and press against the steering gear rotor are respectively provided at both ends of the clutch main shaft.

[0018] After adopting the above technical solution, the present utility model has the following beneficial effects compared with the prior art:

[0019] 1. In the present utility model, a buckling quick-installation frame is arranged between the lifting bracket mechanism and the rotary tillage mechanism to achieve quick disassembly and assembly, thereby facilitating the replacement and maintenance of the rotary tillage mechanism, and enabling the quick replacement of agricultural mechanisms with different functions, such as a lawn mower, etc. Secondly, in the rotary tillage mechanism, the power of the rotary knife motor is simultaneously transmitted to the left rotary knife and the right rotary knife through the transmission component in the middle to ensure the synchronization of the left rotary knife and the right rotary knife and avoid the generation of internal stress resulting in fracture.

[0020] 2. In the present utility model, an upper support rod and a lower support rod are arranged on the buckling quick-installation frame to achieve quick buckling with the support connection frame of the rotary tillage mechanism, and the support connection frame, the left connecting plate, and the right connecting plate are penetrated together through a bolt group or a pin to realize the locking and fixation of the rotary tillage mechanism and the buckling quick-installation frame. Description of the drawings:

[0021] Figure 1 is the structural diagram of the present utility model;

[0022] Figure 2 is the structural diagram of the rotary tillage mechanism in the present utility model;

[0023] Figure 3 is the internal structural diagram of the transmission component in the present utility model;

[0024] Figure 4 is the structural diagram of the transmission component in the present utility model;

[0025] Figure 5 is the structural diagram of the tractor in the present utility model;

[0026] Figure 6 is the structural diagram of the lifting bracket mechanism in the present utility model;

[0027] Figure 7 is the exploded view of the pull rod assembly in the present utility model;

[0028] Figure 8 is the structural diagram of the drive module in the present utility model;

[0029] Figure 9It is the internal structure diagram of the drive module in the present utility model;

[0030] Figure 10 It is the structure diagram of the steering servo in the present utility model. Specific implementation manner:

[0031] The present utility model will be further described below in conjunction with specific embodiments and the accompanying drawings.

[0032] See Figures 1 to 10 As shown, it is a multi-functional electric farming machine, including a tractor 1, a rotary tillage mechanism 2, and a lifting bracket mechanism 3 arranged at the rear end of the tractor 1 and used for lifting the rotary tillage mechanism 2. A snap-fastening mounting frame 4 for disassembling and assembling the rotary tillage mechanism 2 is arranged on the lifting bracket mechanism 3; the rotary tillage mechanism 2 includes a support connection frame 21 for snap-fastening on the snap-fastening mounting frame 4, a rotary cutter motor 22 arranged on the support connection frame 21, a transmission component 23 arranged in the middle of the support connection frame 21 and used for connecting the rotary cutter motor 22 to transmit power, and a left rotary cutter 24 and a right rotary cutter 25 mounted on both sides of the lower end of the transmission component 23. By arranging the snap-fastening mounting frame 4 between the lifting bracket mechanism 3 and the rotary tillage mechanism 2 to achieve quick disassembly and assembly, it is convenient to replace and maintain the rotary tillage mechanism 2, and it can also achieve quick replacement of agricultural mechanisms with different functions, such as: a lawn mower, etc. Secondly, the power of the rotary cutter motor 22 is simultaneously transmitted to the left rotary cutter 24 and the right rotary cutter 25 by the transmission component 23 in the middle of the rotary tillage mechanism 2 to ensure the synchronization of the left rotary cutter 24 and the right rotary cutter 25 and avoid the generation of internal stress resulting in fracture.

[0033] The snap-fastening mounting frame 4 includes an upper support rod 41 and a lower support rod 42 for the support connection frame 21 to snap-fasten, and left connecting plates 43 and right connecting plates 44 sleeved on both ends of the upper support rod 41 and the lower support rod 42 and used for pivotally connecting with the lifting bracket mechanism 3. Upper snap-fastening grooves 211 and lower snap-fastening grooves 212 that can be snap-fastened to the upper support rod 41 and the lower support rod 42 are respectively arranged at the upper and lower ends on both sides of the support connection frame 21, and are locked and fixed by passing a bolt group or a pin through the support connection frame 21 and the left connecting plates 43 and the right connecting plates 44. By arranging the upper support rod 41 and the lower support rod 42 on the snap-fastening mounting frame 4 to achieve quick snap-fastening with the support connection frame 21 of the rotary tillage mechanism 2, and passing the support connection frame 21, the left connecting plates 43 and the right connecting plates 44 together with a bolt group or a pin, the locking and fixing of the rotary tillage mechanism 2 and the snap-fastening mounting frame 4 are realized.

[0034] On both sides of the support connection frame 21, there are left support plates 213 and right support plates 214 for buckling to the upper support rod 41 and the lower support rod 42, and the upper buckling groove 211 and the lower buckling groove 212 are respectively located at the upper and lower ends of the left support plate 213 and the right support plate 214. On the left support plate 213 and the right support plate 214, there are also first limit mounting holes 215 and second limit mounting holes 216 for the bolt group or the pin to pass through respectively, and both the first limit mounting hole 215 and the second limit mounting hole 216 are located between the upper buckling groove 211 and the lower buckling groove 212.

[0035] The transmission assembly 23 includes a drive shaft 231 for installing the left rotary cutter 24 and the right rotary cutter 25, an output bevel gear set 232 sleeved on the drive shaft 231, a bevel gear shaft 233 vertically arranged on one side of the drive shaft 231 and located between the rotary cutter motor 22 and the output bevel gear set 232, and a machine housing 234 covering the bevel gear shaft 233 and the output bevel gear set 232. Among them, one end of the bevel gear shaft 233 meshes with the output bevel gear set 232, and the other end of the bevel gear shaft 233 is connected to the output shaft of the rotary cutter motor 22.

[0036] The lifting bracket mechanism 3 includes four tie rod assemblies 31 arranged between the buckling quick - mounting frame 4 and the tractor 1, a lifting lower connecting rod 32 hinged to the buckling quick - mounting frame 4, a lifting upper connecting rod 33 hinged to the tractor 1 and movably hinged to the lifting lower connecting rod 32, and a driving ejector rod 34 hinged to the tractor 1 and hinged to the lifting upper connecting rod 33 to push it to swing. Among them, the four tie rod assemblies 31 are respectively hinged to the four corners of the buckling quick - mounting frame 4, and movable joints are provided at both ends of the tie rod assemblies 31. The buckling quick - mounting frame 4 is connected to the tractor 4 by the four tie rod assemblies 31, and the tractor 1 and the buckling quick - mounting frame 4 are pulled by the lifting lower connecting rod 32 and the lifting upper connecting rod 33. The driving ejector rod 34 jacks up or lowers the lifting upper connecting rod 33, so that the buckling quick - mounting frame 4 is lifted or lowered, thereby driving the rotary tillage mechanism 2 to flip, and the rotary tillage mechanism 2 is stably supported by the four tie rod assemblies 31. After the rotary tillage mechanism 2 is lifted, the distance between the rotary tillage mechanism 2 and the tractor 4 can be shortened, and the torque during swinging can be reduced, thereby effectively avoiding vehicle overturning.

[0037] The pull rod assembly 31 includes a support sleeve 31A, a first fish-eye ball head 31B and a second fish-eye ball head 31C telescopically arranged at both ends of the support sleeve 31A, a first fixing bolt rod 31H for fixing the first fish-eye ball head 31B and the snap-fastening frame 4, a first fish-eye mounting sleeve 31D and a second fish-eye mounting sleeve 31E sleeved on the first fixing bolt rod 31H and pressing against both sides of the first fish-eye ball head 31B, a first fish-eye ball 31I arranged inside the end of the first fish-eye ball head 31B and used for mating and docking with the first fish-eye mounting sleeve 31D and the second fish-eye mounting sleeve 31E, a second fixing screw 31J for fixing the second fish-eye ball head 31C and the tractor 1, a third fish-eye mounting sleeve 31F and a fourth fish-eye mounting sleeve 31G sleeved on the second fixing screw 31J and pressing against both sides of the second fish-eye ball head 31C, and a second fish-eye ball 31K arranged inside the end of the second fish-eye ball head 31C and used for mating and docking with the third fish-eye mounting sleeve 31F and the fourth fish-eye mounting sleeve 31G. Wherein, one end of the first fish-eye ball head 31B is set as a screw part 31B1 extending into the support sleeve 31A, and a first adjusting nut 31B2 for adjusting the telescopic length of the first fish-eye ball head 31B is installed on the screw part 31B1. The other end of the first fish-eye ball head 31B is set as a sleeve part 31B3 for installing the first fish-eye ball 31I and allowing the first fixing bolt rod 31H to pass through. The second fish-eye ball head 31C has the same structure as the first fish-eye ball head 31B. By arranging fish-eye ball head structures at both ends of the pull rod assembly 31 for connection, through the cooperation of the fish-eye ball and the fish-eye mounting sleeve, the connection at the end of the pull rod assembly 31 can be deflected within a certain angle range, and the elongation and shortening of the pull rod assembly 31 are realized through the telescopable first fish-eye ball head 31B and the second fish-eye ball head 31C, so as to realize the position adjustment of the rotary tillage mechanism 2, so that the rotary tillage mechanism 2 can keep working in a straight line and the tillage depth at each place is kept consistent.

[0038] The driving push rod 34 and the lifting upper connecting rod 33 are connected through a third fish-eye ball head 351, a third fixing bolt rod 352, a fifth fish-eye mounting sleeve 353 and a sixth fish-eye mounting sleeve 354. A third fish-eye ball for allowing the third fixing bolt rod 352 to pass through and mating and docking with the fifth fish-eye mounting sleeve 353 and the sixth fish-eye mounting sleeve 354 is further arranged inside the third fish-eye ball head 3351. The lifting lower connecting rod 32 and the lifting upper connecting rod 33 are connected through a first pin shaft 36, and a first strip-shaped groove 321 for allowing the first pin shaft 36 to slide is arranged on the lifting lower connecting rod 32.

[0039] The tractor 1 includes a frame main body A, a left crawler wheel B and a right crawler wheel C arranged on both sides of the frame main body A, a drive module D arranged inside the frame main body A and used to drive the left crawler wheel B and the right crawler wheel C to work, and a battery unit E arranged inside the frame main body A and used to supply electric energy to the drive module D. Among them, the drive module D is located at the front end of the frame main body A, the lifting bracket mechanism 3 is hinged and installed at the rear end of the frame main body A, and the battery unit E is located in the middle of the frame main body A.

[0040] The drive module D includes a speed change gearbox D1, a steering servo D2 arranged on the speed change gearbox D1 and used to control the steering of the tractor 1, a shift servo D3 arranged on the speed change gearbox D1 and used to control the forward and backward movement of the tractor 1, a traveling motor D4 arranged on the speed change gearbox D1, and a transmission pulley group D5 arranged between the traveling motor D4 and the speed change gearbox D1.

[0041] An installation bracket D6 for supporting the traveling motor D4 and the transmission pulley group D5 is arranged on the speed change gearbox D1. The installation bracket D6 includes a support vertical plate D61 fixed on the speed change gearbox D1 and a sliding block D62 slidably arranged on the support vertical plate D61 and used to fix the traveling motor D4. One end of the support vertical plate D61 is provided with an installation groove D63 for the sliding block D62 to move, and a plurality of second strip-shaped grooves D64 for installing and adjusting the position of the sliding block D62 are arranged in the installation groove D63.

[0042] The steering servo D2 includes a servo gearbox D21, a servo rotor D22 swingably arranged at the bottom of the servo gearbox D21, a steering motor D23 arranged on the servo gearbox D21 and used to drive the servo rotor D22 to swing, and a plurality of reduction gear pairs D24 arranged inside the servo gearbox D21 and used to transmit power between the steering motor D23 and the servo rotor D22.

[0043] The speed change gearbox D1 includes a box body, an input main shaft D12, a left output shaft D13, a right output shaft D14, a speed change main shaft D15 and a clutch main shaft D16. Among them, a speed change gear set D17 for transmitting power is arranged on the input main shaft D12 and the speed change main shaft D15, a clutch gear set D18 for transmitting power is arranged on the clutch main shaft D16 and the left output shaft D13 and the right output shaft D14, and left and right clutch modules D19 and D100 capable of contacting and pressing against the servo rotor D22 are respectively arranged at both ends of the clutch main shaft D16.

[0044] In summary, when the utility model works, the rotary tillage mechanism 2 is driven by the tractor 1 to move. When tilling is required, the rotary tillage mechanism 2 is lowered through the lifting bracket mechanism 3, so that the left rotary cutter group 24 and the right rotary cutter group 25 of the rotary tillage mechanism 2 are inserted into the soil. Driven by the rotary cutter motor 22, the left rotary cutter group 24 and the right rotary cutter group 25 start to work, and at the same time, the tractor 1 pulls the rotary tillage mechanism 2 forward to achieve tilling. Further, when replacing the agricultural mechanism, for example, a weeding machine, it is necessary to first lift the rotary tillage mechanism 2 through the lifting bracket mechanism 3, loosen the bolts or pins between the rotary tillage mechanism 2 and the snap-fastening mounting frame 4, and then manually or with the help of a crane, lift the rotary tillage mechanism 2 upward and remove it from the snap-fastening mounting frame 4. Of course, in order to facilitate the removal of the rotary tillage mechanism 2, the rotary tillage mechanism 2 can also be pulled out of the soil and placed on the ground. After removing the locking bolts or pins, it swings downward through the lifting bracket mechanism 3 and disengages from the rotary tillage mechanism 2. Finally, the weeding machine is installed on the snap-fastening mounting frame 4 to complete the replacement of the agricultural mechanism.

[0045] Certainly, the above are only specific embodiments of the utility model, and are not intended to limit the scope of implementation of the utility model. Any equivalent changes or modifications made according to the structure, features, and principles described in the scope of the patent application of the utility model should be included in the scope of the patent application of the utility model.

Claims

1. Multifunctional electric farming machine, comprising a tractor (1), a rotary tillage mechanism (2), and a lifting bracket mechanism (3) arranged at the rear end of the tractor (1) and used for lifting the rotary tillage mechanism (2), characterized in that: A snap-fastening frame (4) for disassembling and assembling the rotary tillage mechanism (2) is arranged on the lifting bracket mechanism (3). The snap-fastening frame (4) includes an upper support rod (41) and a lower support rod (42) for snap-fastening the support connecting frame (21), and left and right connecting plates (43) and (44) sleeved at both ends of the upper support rod (41) and the lower support rod (42) and used for pivotally connecting with the lifting bracket mechanism (3). Upper snap-fastening grooves (211) and lower snap-fastening grooves (212) capable of being snapped onto the upper support rod (41) and the lower support rod (42) are respectively arranged at the upper and lower ends on both sides of the support connecting frame (21), and are locked and fixed by passing bolts or pins through the support connecting frame (21) and the left and right connecting plates (43) and (44).

2. The multi-functional electric farming machine according to claim 1, characterized in that: The lifting bracket mechanism (3) includes four tie rod assemblies (31) arranged between the snap-fastening frame (4) and the tractor (1), a lifting lower connecting rod (32) hingedly installed on the snap-fastening frame (4), a lifting upper connecting rod (33) hingedly installed on the tractor (1) and movably hinged to the lifting lower connecting rod (32), and a driving ejector rod (34) hingedly installed on the tractor (1) and hinged to the lifting upper connecting rod (33) to push it to swing. Among them, the four tie rod assemblies (31) are respectively hinged at the four corners of the snap-fastening frame (4).

3. The multi-functional electric farming machine according to claim 2, characterized in that: The tie rod assembly (31) includes a support sleeve (31A), a first fish-eye ball head (31B) and a second fish-eye ball head (31C) telescopically arranged at both ends of the support sleeve (31A), a first fixed bolt rod (31H) for fixing the first fish-eye ball head (31B) to the snap-fastening frame (4), first and second fish-eye mounting sleeves (31D) and (31E) sleeved on the first fixed bolt rod (31H) and pressing against both sides of the first fish-eye ball head (31B), a first fish-eye ball (31I) arranged inside the end of the first fish-eye ball head (31B) and used for mating and docking with the first and second fish-eye mounting sleeves (31D) and (31E), a second fixed screw (31J) for fixing the second fish-eye ball head (31C) to the tractor (1), third and fourth fish-eye mounting sleeves (31F) and (31G) sleeved on the second fixed screw (31J) and pressing against both sides of the second fish-eye ball head (31C), and a second fish-eye ball (31K) arranged inside the end of the second fish-eye ball head (31C) and used for mating and docking with the third and fourth fish-eye mounting sleeves (31F) and (31G).

4. The multi-functional electric farming machine according to any one of claims 1-3, characterized in that: The tractor (1) includes a frame body (A), a left crawler wheel (B) and a right crawler wheel (C) arranged on both sides of the frame body (A), a drive module (D) arranged inside the frame body (A) and used to drive the left crawler wheel (B) and the right crawler wheel (C) to work, and a battery unit (E) arranged inside the frame body (A) and used to supply electric energy to the drive module (D). Among them, the drive module (D) is located at the front end of the frame body (A), the lifting bracket mechanism (3) is hinged and installed at the rear end of the frame body (A), and the battery unit (E) is located in the middle of the frame body (A).

5. The multi-functional electric farming machine according to claim 4, characterized in that: The drive module (D) includes a speed change gearbox (D1), a steering servo (D2) arranged on the speed change gearbox (D1) and used to control the steering of the tractor (1), a shift servo (D3) arranged on the speed change gearbox (D1) and used to control the forward and backward movement of the tractor (1), a traveling motor (D4) arranged on the speed change gearbox (D1), and a transmission pulley group (D5) arranged between the traveling motor (D4) and the speed change gearbox (D1).

6. The multi-functional electric farming machine according to claim 5, characterized in that: An installation bracket (D6) for supporting the traveling motor (D4) and the transmission pulley group (D5) is arranged on the speed change gearbox (D1). The installation bracket (D6) includes a support vertical plate (D61) fixed on the speed change gearbox (D1) and a sliding block (D62) slidably arranged on the support vertical plate (D61) and used to fix the traveling motor (D4). One end of the support vertical plate (D61) is provided with an installation groove (D63) for the sliding block (D62) to move, and a plurality of second strip grooves (D64) for installing and adjusting the position of the sliding block (D62) are arranged in the installation groove (D63).

7. The multi-functional electric farming machine according to claim 5, characterized in that: The steering servo (D2) includes a servo gearbox (D21), a servo rotor (D22) arranged at the bottom of the servo gearbox (D21) in a swingable manner, a steering motor (D23) arranged on the servo gearbox (D21) and used to drive the servo rotor (D22) to swing, and a plurality of reduction gear pairs (D24) arranged inside the servo gearbox (D21) and used to transmit power between the steering motor (D23) and the servo rotor (D22).

8. The multi-functional electric farming machine according to claim 7, characterized in that: The speed change gearbox (D1) includes a box body, an input main shaft (D12), a left output shaft (D13), a right output shaft (D14), a speed change main shaft (D15), and a clutch main shaft (D16). Among them, a speed change gear group (D17) for transmitting power is arranged on the input main shaft (D12) and the speed change main shaft (D15), a clutch gear group (D18) for transmitting power is arranged on the clutch main shaft (D16), the left output shaft (D13), and the right output shaft (D14), and a left clutch module (D19) and a right clutch module (D100) that can contact and press against the servo rotor (D22) are respectively arranged at both ends of the clutch main shaft (D16).

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