Novel electric walking tractor

Abstract

The utility model relates to the technical field of agricultural instruments, and discloses a novel electric walking tractor which comprises a tractor body, a planetary differential gear set is fixedly connected into the tractor body, a fixing block is fixedly connected to the front end of the planetary differential gear set, and a rotating shaft is rotationally connected to the top end of the fixing block. The top end of the rotating shaft is fixedly connected with a rotating block, the front end of the planetary differential gear set is fixedly connected with a second butt joint tooth, the front end of the second butt joint tooth is slidably connected with a first butt joint tooth, and the end, away from the second butt joint tooth, of the first butt joint tooth is fixedly connected with a rotating column. A fixing assembly used for fixing is arranged at the top end of the fixing block. In the utility model, the efficient direct-current motor is adopted to ensure strong power and is matched with the planetary gearbox for mechanical transmission, the effective output torque of the tractor is improved, a clutch between the driving motor and the gearbox is cancelled, and various power and non-power machines and tools can be quickly switched from front to back through PTO power output, so that the purposes of multiple functions, zero carbon emission and environmental protection are achieved; the transmission chain structure and manufacturing cost are simplified, and the fault probability is reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to agricultural machinery technical field especially relates to a novel electric hand tractor. BACKGROUND

[0002] In the whole agricultural machinery field, electrification has become an irresistible trend, electric agricultural machines have many advantages such as zero emission and low noise, meet the concept of environmental protection and sustainable development, many large agricultural machines are gradually exploring electrification transformation, and products such as electric tractors and electric harvesters are emerging, and such a big environment also promotes the development of hand tractors towards electrification to adapt to the comprehensive requirements of mechanical performance and environmental protection in new era agricultural production.

[0003] The electric hand tractor is composed of a frame, a battery, a motor, a controller, a transmission assembly, a steering assembly, a brake assembly and an operating assembly, and the working principle of the electric hand tractor is that the battery provides electric energy to the motor, the motor transmits power to the wheels through the transmission assembly, so that the tractor travels.

[0004] Some existing electric hand tractors have many disadvantages, such as insufficient power, which makes it difficult to move and low efficiency in heavy load operation, inflexible torque adjustment, which is difficult to adapt to different working condition requirements and affects the operation quality, inconvenient power reversing and adjustment operation, which consumes manpower and time and increases the risk of operation errors, PTO power output switching machine is complicated, which reduces the efficiency of agricultural machine switching, delays the agricultural time, and the transmission chain structure is complex, not only the manufacturing cost is high, but also the failure frequency is high, which increases the maintenance cost and downtime, seriously restricts the use efficiency and economic benefit, therefore, a novel electric hand tractor is proposed to solve the above problems. UTILITY MODEL CONTENTS

[0005] In order to make up for the above shortcomings, the utility model provides a novel electric hand tractor, which aims at improving the problem that the electric hand tractor and other machines in the prior art cannot be quickly connected and the stability between transmission.

[0006] In order to achieve the above purpose, the utility model adopts the following technical scheme:

[0007] A new electric hand tractor, comprising a body, a motor fixedly connected inside the body, a drive shaft fixedly connected to the driving end of the motor, the drive shaft being rotatably connected to the inside of the body, a worm gear provided inside the body, a worm fixedly connected to the rear end of the drive shaft, the worm gear and the worm being meshed, a differential fixedly connected inside the worm gear, a PTO shaft rotatably connected inside the body, a gear box fixedly connected to the outside of the PTO shaft, the gear box and the drive shaft being meshed, and a limiting assembly provided at the rear end of the body for limiting;

[0008] As a further description of the above technical solution:

[0009] The top end of the body is fixedly connected with a handlebar, and the top end of the handlebar is fixedly connected with an instrument panel.

[0010] As a further description of the above technical solution:

[0011] The front end of the body is fixedly connected with a fixed block, the top end of the fixed block is rotatably connected with a rotating shaft, the outside of the rotating shaft is fixedly connected with a rotating block, the top end of the fixed block is fixedly connected with a fixed column, and the outside of the fixed column is provided with a fixing assembly for fixing.

[0012] As a further description of the above technical solution:

[0013] The inside of the fixed block is slidably connected with a transmission shaft, and the PTO shaft is in contact with the transmission shaft.

[0014] As a further description of the above technical solution:

[0015] The fixing assembly comprises a threaded block, the inside of the threaded block is threadedly connected to the outside of the fixed column, the rear end of the threaded block is rotatably connected with a sliding ring, and the end of the sliding ring away from the threaded block is fixedly connected with a plurality of fixed teeth.

[0016] As a further description of the above technical solution:

[0017] The inside of the fixed block is slidably connected with a transmission shaft, and the PTO shaft is in contact with the transmission shaft.

[0018] As a further description of the above technical solution:

[0019] The inside of the sliding ring is slidably connected to the outside of the fixed column, and the outside of the fixed column is slidably connected to the inside of the rotating block.

[0020] As a further description of the above technical solution:

[0021] The transmission shaft is externally slidably connected to the inside of the rotating block, and the top end of the machine body is provided with an adjusting handle.

[0022] The utility model has the advantages of:

[0023] 1. In the utility model, the electric tractor adopts a high-efficiency direct-current motor to ensure strong power, and cooperates with a planetary gear box of mechanical transmission to improve the effective output torque of the tractor, reverses before and after one-key starting, adjusts speed and output power with one finger, and adjusts the operation handle, and the PTO power output can quickly switch various power and non-power implements before and after, achieves multifunction, zero carbon emission and environmental protection, cancels the clutch between the driving motor and the gearbox, simplifies the transmission chain structure and manufacturing cost, reduces the failure probability, adjusts the height of the handle, reverses the handle to work, and is suitable for different implement functions.

[0024] 2. In the utility model, the fixed column is fixed and limited by the fixed block and the rotating block, so that the kinetic energy transmission between the tractor and the implement is stable, the connecting structure also has the characteristics of quick disassembly and installation, so that when different functional power implements need to be replaced, such as replacing the plowing implement with the seeding implement, the operator does not need to use complex tools or spend a lot of time, and only needs to simply operate according to the established steps to quickly complete the disassembly and installation work, greatly improves the work efficiency, and truly realizes the function of driving various power implements, and provides great convenience for diversified operation in agricultural production. BRIEF DESCRIPTION OF DRAWINGS

[0025] Figure 1 A three-dimensional schematic view of a novel electric hand-held tractor is provided for the utility model;

[0026] Figure 2 A structural schematic view of the adjusting handle of the novel electric hand-held tractor is provided for the utility model;

[0027] Figure 3 For Figure 2 An enlarged view of position A in the middle;

[0028] Figure 4 A structural schematic view of the fixed block of the novel electric hand-held tractor is provided for the utility model;

[0029] Figure 5 For Figure 4 An enlarged view of position B in the middle.

[0030] LEGEND:

[0031] 1, body; 2, motor; 3, drive shaft; 4, worm gear; 5, gear box; 6, PTO shaft; 7, adjusting handle; 8, instrument panel; 9, handle; 10, fixed block; 11, rotating shaft; 12, rotating block; 13, fixed column; 14, threaded block; 15, sliding ring; 16, fixed tooth; 17, fixed groove; 18, transmission shaft; 19, differential; 20, worm; 21, clamping block. DETAILED DESCRIPTION

[0032] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the utility model.

[0033] Reference Figures 1 to 3 An embodiment provided by the utility model: a novel electric hand tractor, comprising a body 1, which serves as the core framework of the whole device and provides a stable bearing basis and installation space for many other parts. A motor 2 is fixedly connected inside the body 1, which serves as a power source and provides core power support for the operation of the tractor and the driving of subsequent implements, has the ability of efficiently converting electric energy into mechanical energy, and can stably output power to meet the needs of different working scenes. A drive shaft 3 is fixedly connected to the driving end of the motor 2, which is like a bridge for power transmission, transmits the power generated by the motor 2 outward, and is rotatably connected to the inside of the body 1, which, through precise bearing and other rotary connection structures, ensures that the drive shaft 3 can rotate smoothly and stably inside the body 1, reducing energy loss and frictional resistance;

[0034] A worm gear 4 is arranged inside the body 1, which plays a key role in the whole power transmission system and can change the transmission direction and transmission ratio of other parts. A worm 20 is fixedly connected to the rear end of the drive shaft 3, and the worm 20 is meshed with the worm gear 4. This transmission combination of the worm 20 and the worm gear 4 has unique advantages, such as being able to achieve a large transmission ratio, so that the high-speed low-torque power output by the motor 2 can be converted into low-speed high-torque power suitable for agricultural implement operation, enhancing the adaptability of the tractor to different working resistances. For example, when deep plowing or pulling heavy load implements, enough power can be stably output.

[0035] The differential 19 is fixedly connected to the inside of the worm wheel 4. The differential 19 can reasonably distribute power to the left and right wheels when the tractor turns or when the driving resistance of the left and right wheels is different, so as to ensure that the wheels can rotate at different speeds, realize smooth and flexible steering operation, avoid problems such as tire wear and steering difficulty caused by the same wheel speed, and greatly improve the maneuverability and controllability of the tractor in the complex terrain in the field.

[0036] The PTO shaft 6 is rotatably connected to the inside of the machine body 1. The gear box 5 is fixedly connected to the outside of the PTO shaft 6. The gear box 5 is in meshing connection with the driving shaft 3. The gear box 5 can adjust the speed of the power transmitted by the driving shaft 3 according to the actual working condition, and then connect different power machines to realize different working effects. The rear end of the machine body 1 is provided with a limiting assembly for limiting. The limiting assembly can limit the position of the related parts during the operation of the tractor, so as to ensure the stability and safety of the operation. The top end of the machine body 1 is fixedly connected with the handle 9. The handle 9 is an important part for the operator to control the driving direction of the tractor, and provides a good control feeling for the operator. The handle 9 can be turned forward and backward to realize direction changing and is suitable for different machine functions. The top end of the handle 9 is fixedly connected with the instrument panel 8. The instrument panel 8 can display the working state information of the tractor in real time, such as speed and power, so as to facilitate the operator to understand the operation of the tractor in time and make corresponding adjustment;

[0037] The front end of the machine body 1 is fixedly connected with the fixed block 10. The fixed block 10 provides a stable basic structure for connecting other machines. The top end of the fixed block 10 is rotatably connected with the rotating shaft 11. The rotating shaft 11 can make the rotating block 12 connected therewith rotate flexibly, so as to facilitate the connection and operation of the machine. The rotating shaft 11 is fixedly connected with the rotating block 12 outside. The rotating block 12 plays a key role in the process of connecting the machine. The top end of the fixed block 10 is fixedly connected with the fixed column 13. The fixed column 13 provides a stable support structure for the fixed assembly. The outside of the fixed column 13 is provided with a fixed assembly for fixing. The fixed assembly can ensure the firmness of the connection between the machine and the tractor, and prevent loosening during operation. The inside of the fixed block 10 is slidably connected with the transmission shaft 18. The transmission shaft 18 can slide in the fixed block 10 to realize power transmission. The PTO shaft 6 is in contact with the transmission shaft 18, so as to ensure the effective transmission of power from the inside of the tractor to the outside machine.

[0038] Referring to Figure 1 , Figure 4 and Figure 5The fixed assembly comprises a threaded block 14, the inside of which is threadedly connected to the outside of the fixed column 13, and the threaded connection enables the threaded block 14 to move accurately on the fixed column 13. The rear end of the threaded block 14 is rotationally connected with a sliding ring 15, which can move correspondingly with the movement of the threaded block 14, ensuring the continuity of the connection action. The end of the sliding ring 15 away from the threaded block 14 is fixedly connected with a plurality of fixed teeth 16, and the inside of the rotating block 12 and the fixed block 10 is provided with a fixed groove 17, the fixed teeth 16 can be matched with the fixed groove 17 on other components to realize firm connection, and the fixed groove 17 provides a space for the fixed teeth 16 to be embedded, ensuring the stability of the connection;

[0039] The outside of the fixed teeth 16 is slidably connected in the inside of the fixed groove 17, and through the sliding connection, the stable connection between the fixed block 10 and the rotating block 12 is realized. The inside of the sliding ring 15 is slidably connected to the outside of the fixed column 13, ensuring the smoothness of the sliding ring 15 during movement. The outside of the fixed column 13 is slidably connected to the inside of the rotating block 12, facilitating the rotation of the rotating block 12 during operation. The outside of the transmission shaft 18 is slidably connected to the inside of the rotating block 12, enabling the transmission shaft 18 to move smoothly in the rotating block 12, ensuring the stability of power transmission. The top end of the machine body 1 is provided with an adjusting handle 7, and the top end of the adjusting handle 7 is provided with a clamping block 21. By rotating the adjusting handle 7, the adjusting handle 7 is clamped at different positions of the clamping block 21, so as to realize the height adjustment of the handle 9.

[0040] Working principle: When the staff needs to use the hand-held tractor, the motor 2 can be started to drive the driving shaft 3 to rotate, so that the driving shaft 3 drives the worm gear 4 to rotate, realizing the operation of the whole tractor. Through the connection of the driving shaft 3 and the gear box 5, different power machines can be connected to realize different effects. The speed and torque of the PTO shaft 6 can be changed by controlling the adjusting handle 7. The large gear drives the small gear to increase the speed but reduce the torque, and vice versa. When the tractor is in use, the instrument panel 8 can be used to understand the state of the tractor, facilitating operation.

[0041] The worker can connect different implements to the electric hand-held tractor as needed to achieve different effects, for example, the electric hand-held tractor is fixed with a plow to form a plowing machine; the implement itself is connected to the fixed block 10 by sliding the transmission shaft 18 into the inside of the fixed block 10, and the transmission shaft 18 is connected to the fixed teeth 16; after the connection, the rotating block 12 is rotated to make the rotating block 12 contact the fixed block 10; then, the threaded block 14 is manually rotated, the threaded block 14 is moved outside the fixed column 13 by the rotation of the threaded block 14, the sliding ring 15 is slid outside the fixed column 13 by the movement of the threaded block 14, the fixed teeth 16 are slid into the inside of the fixed groove 17 by the sliding of the sliding ring 15, the position of the fixed block 10 and the rotating block 12 is fixed, the stability of the position is ensured by the threaded connection between the threaded block 14 and the fixed column 13, thereby the connection between the driving end of the electric hand-held tractor and the force receiving end of other implements is completed, the stability of the connection is ensured, and thus the power output of the electric hand-held tractor can drive various power implements to achieve different effects and meet different use requirements.

[0042] Finally, it should be noted that: the above only for the preferred embodiments of the present application, and not for limiting the present application, although the foregoing detailed description of the present application, for the person skilled in the art, it still can be modified, or part of the technical features of the equivalent replacement, within the spirit and principles of the present application, any modification, equivalent replacement, improvement, etc., should be included in the scope of protection of the present application.

Claims

1. A novel electric walking tractor, comprising a body (1), characterized in that: A motor (2) is fixedly connected inside the body (1). A drive shaft (3) is fixedly connected to the drive end of the motor (2). The drive shaft (3) is rotatably connected to the inside of the body (1). A worm gear (4) is provided inside the body (1). A worm (20) is fixedly connected to the rear end of the drive shaft (3). The worm gear (4) and the worm (20) are meshed. A differential (19) is fixedly connected inside the worm gear (4). A PTO shaft (6) is rotatably connected inside the body (1). A gearbox (5) is fixedly connected to the outside of the PTO shaft (6). The gearbox (5) is meshed with the drive shaft (3). A limiting component for limiting is provided at the rear end of the body (1).

2. The novel electric walking tractor according to claim 1, characterized in that: A handle (9) is fixedly connected to the top of the body (1), and an instrument panel (8) is fixedly connected to the top of the handle (9).

3. A novel electric walking tractor according to claim 1, characterized in that: A fixing block (10) is fixedly connected to the front end of the body (1), a rotating shaft (11) is rotatably connected to the top of the fixing block (10), a rotating block (12) is fixedly connected to the outside of the rotating shaft (11), a fixing column (13) is fixedly connected to the top of the fixing block (10), and a fixing component for fixing is provided on the outside of the fixing column (13).

4. A novel electric walking tractor according to claim 3, characterized in that: The fixed block (10) is internally slidably connected to a drive shaft (18), and the PTO shaft (6) is in contact with the drive shaft (18).

5. A novel electric walking tractor according to claim 4, characterized in that: The fixing component includes a threaded block (14), the internal thread of which is connected to the outside of the fixing post (13). A sliding ring (15) is rotatably connected to the rear end of the threaded block (14), and a plurality of fixing teeth (16) are fixedly connected to one end of the sliding ring (15) away from the threaded block (14).

6. A novel electric walking tractor according to claim 5, characterized in that: The rotating block (12) and the fixed block (10) are both provided with a fixing groove (17), and the outside of the fixing tooth (16) is slidably connected to the inside of the fixing groove (17).

7. A novel electric walking tractor according to claim 5, characterized in that: The inside of the sliding ring (15) is slidably connected to the outside of the fixed column (13), and the outside of the fixed column (13) is slidably connected to the inside of the rotating block (12).

8. A novel electric walking tractor according to claim 4, characterized in that: The external drive shaft (18) is slidably connected to the inside of the rotating block (12), and an adjustment handle (7) is provided at the top of the body (1), with a locking block (21) at the top of the adjustment handle (7).

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