Novel spline direct connection power driving structure of electric two-wheel mini-tiller
Through the spline direct connection structure and positioning shaft design, the problems of lack of reverse gear, complex installation and high noise in traditional micro-tillers are solved, and convenient installation and efficient power transmission of electric micro-tillers are achieved, improving operational comfort and use scenarios.
Patent Information
- Application Number
- CN202422307507.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-20
- Publication Date
- 2025-08-26
- Estimated Expiration
- 2034-09-20
AI Technical Summary
Traditional micro-tillers lack reverse gear function, are cumbersome to install, have large vibration and high noise, and use traditional gasoline engine power leads to inconvenient operation and high cost.
The spline direct connection structure is adopted, and the power transmission of the electric micro-tiller is achieved through the spline connection between the motor shaft and the power shaft, and the positioning shaft is set on the frame and the motor base for easy installation, replacing the traditional gasoline engine.
The transmission of the flexible force of the electric micro-tiller is realized, the installation process is simplified, the noise and vibration is reduced, the operation comfort and the diversity of use scenarios are improved, and the maintenance costs are reduced.
Smart Images

Figure CN223261901U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of drive structures, in particular to a spline direct-connected novel electric two-wheel micro-tillage machine power drive structure. Background Art
[0002] The micro-tiller is powered by a small diesel engine or gasoline engine and has the characteristics of light weight, small size and simple structure. It is widely used in dry land, paddy fields, orchards in plains, mountainous areas and hills. It can be equipped with corresponding equipment to perform operations such as pumping water, generating electricity, spraying, and irrigation. It can also tow a trailer for short-distance transportation. The micro-tiller can be freely used in the field, which is convenient for users to use and store, eliminating the trouble of large agricultural machinery being unable to enter mountain fields. It is the best choice for farmers and consumers to replace ox plowing.
[0003] In the prior art, the existing micro-tillage machine has no reverse gear setting during use and can only move forward. In addition, a traditional gasoline oil extraction machine is used to power the two-wheel micro-tillage machine. Not only is the installation of the gasoline oil extraction machine complicated and difficult, but it also generates a lot of noise during use, which can damage the operator's ears.
[0004] Therefore, a new type of spline direct-connected electric two-wheeled micro-tiller power drive structure is proposed. Utility Model Content
[0005] The purpose of the utility model is to provide a new type of electric two-wheeled micro-tiller with a spline direct connection power drive structure to solve the problems of traditional gasoline and diesel micro-tillers proposed in the above background technology, such as lack of reverse gear function, difficult and cumbersome installation, large vibration and high noise.
[0006] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a spline direct-connected new electric two-wheel micro-tiller power drive structure, comprising a micro-tiller body, the micro-tiller body including a frame, a motor base, a DC motor, and a gearbox body;
[0007] The frame is mounted on the micro-tiller body, a gearbox body is mounted on the bottom side of the frame, a motor seat is mounted on the upper side of the frame, a DC motor is mounted on the motor seat, a motor shaft is mounted on the DC motor, and a spline is provided on the inner wall of the motor shaft;
[0008] A power shaft is mounted on the gearbox body, a spline is provided on the outer surface of the power shaft, and the power shaft is mounted on the inner wall of the motor shaft by means of the spline.
[0009] Preferably, a plurality of positioning shafts are installed on the motor seat, a plurality of mounting slots are provided on the DC motor, and the plurality of positioning shafts are movably installed on the inner walls of the plurality of mounting slots.
[0010] Compared with the prior art, the beneficial effects of the present invention are:
[0011] The utility model adopts electric technology to operate, replacing the traditional gasoline and diesel micro-tillage machines without reverse gear function, difficult and cumbersome installation, large vibration, large noise and other problems, ensuring the comfort of the operator, eliminating the trouble of mechanical ignition and high failure rate, greatly reducing the daily use cost, and increasing more usage scenarios, such as (plowing paddy fields, pumping water, loosening soil in orchards and vegetable fields, weeding, ditching, leveling soil, spraying pesticides and sprinkling water during busy farming season), greatly reducing the problems of idleness and deterioration. BRIEF DESCRIPTION OF THE DRAWINGS
[0012] Figure 1 It is a schematic diagram of the main structure of the utility model;
[0013] Figure 2 This is a schematic diagram of the connection structure of the frame, motor base and DC motor of the utility model;
[0014] Figure 3 This is a side structural diagram of the motor base, DC motor and gearbox body of the utility model;
[0015] Figure 4 This is a schematic cross-sectional view of the DC motor and the gearbox body of the present invention;
[0016] In the figure: 1. Tiller body; 2. Frame; 3. Motor base; 4. DC motor; 5. Gearbox; 6. Power shaft; 7. Positioning shaft; 8. Mounting slot; 9. Motor shaft. DETAILED DESCRIPTION
[0017] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described 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 making creative efforts are within the scope of protection of the present invention.
[0018] Example: See Figure 1-4 The utility model provides a technical solution: a spline direct-connected new electric two-wheeled micro-tiller power drive structure, including a micro-tiller body 1, the micro-tiller body 1 includes a frame 2, a motor base 3, a DC motor 4, and a gearbox body 5;
[0019] In order to make the transmission more efficient, the frame 2 is installed on the micro-tiller body 1, and a gearbox body 5 is installed on the bottom side of the frame 2, and a motor base 3 is installed on the upper side of the frame 2. A DC motor 4 is installed on the motor base 3, and a motor shaft 9 is installed on the DC motor 4. A spline is provided on the inner wall of the motor shaft 9, and a power shaft 6 is installed on the gearbox body 5. A spline is provided on the outer surface of the power shaft 6. The power shaft 6 is installed on the inner wall of the motor shaft 9 by a spline manner, and is connected to the motor shaft 9 by a spline manner, so that it can be more effectively and efficiently transmitted and durable, and the installation is also more convenient and quick. At the same time, the motor shaft 9 on the DC motor 4 and the power shaft 6 on the gearbox body 5 are docked and fixed by a direct connection manner, thereby realizing forward and reverse power transmission, which is not only simple in structure, but also more convenient and flexible in use.
[0020] In order to install the DC motor 4 more firmly, multiple positioning shafts 7 are installed on the motor base 3, and multiple mounting grooves 8 are opened on the DC motor 4. The multiple positioning shafts 7 are movably installed on the inner walls of the multiple mounting grooves 8. By inserting the positioning shafts 7 into the inner walls of the mounting grooves 8, the DC motor 4 can be positioned and installed quickly and efficiently, making it more secure during use and preventing displacement.
[0021] The working principle is as follows: when in use, first fix the gearbox body 5 to the bottom side of the frame 2 by means of bolts or welding, and then fix the motor base 3 to the frame 2 by means of bolts and nuts, so that the middle position of the motor base 3 can be in the same vertical direction as the middle position of the gearbox body 5, and then place the DC motor 4 on the motor base 3, so that the positioning shaft 7 on the motor base 3 can be just inserted into the mounting slot 8 on the DC motor 4, and at the same time, the middle position of the DC motor 4 and the middle position of the gearbox body 5 are still kept in the same vertical direction, and at the same time, the power on the gearbox body 5 is kept in the same vertical direction. The shaft 6 can be directly plugged into the inner wall of the motor shaft 9 on the DC motor 4, and then the DC motor 4 is fixed to the motor base 3 with bolts. At this time, the DC motor 4 and the gearbox body 5 can be quickly assembled together. When in use, the switch on the DC motor 4 is started, and the DC motor 4 is powered by the carrier power supply. The DC motor 4 drives the motor shaft 9 to rotate, and the motor shaft 9 drives the power shaft 6 to rotate through the spline, and the power shaft 6 drives the gearbox body 5 to rotate, thereby not only improving the transmission efficiency, but also realizing forward and reverse power transmission. It is not only simple in structure, but also convenient and practical.
[0022] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.
Claims
1. A new type of spline direct-connected electric two-wheeled micro-tiller power drive structure, characterized by: The micro-tillage machine body (1) includes a frame (2), a motor base (3), a DC motor (4), and a gearbox body (5); The frame (2) is mounted on the micro-tillage machine body (1), a gearbox body (5) is mounted on the bottom side of the frame (2), a motor base (3) is mounted on the top side of the frame (2), a DC motor (4) is mounted on the motor base (3), a motor shaft (9) is mounted on the DC motor (4), and a spline is provided on the inner wall of the motor shaft (9); A power shaft (6) is mounted on the gearbox body (5), a spline is provided on the outer surface of the power shaft (6), and the power shaft (6) is mounted on the inner wall of the motor shaft (9) in a spline manner.
2. The power drive structure of a novel electric two-wheeled micro-tiller with direct spline connection according to claim 1 is characterized in that: A plurality of positioning shafts (7) are mounted on the motor seat (3), a plurality of mounting slots (8) are provided on the DC motor (4), and the plurality of positioning shafts (7) are movably mounted on the inner walls of the plurality of mounting slots (8).