Mowing motor with speed reduction teeth

Abstract

The utility model relates to a mowing motor with speed reduction teeth, which comprises a supporting shaft, a hub assembly, a driving wheel skin assembly, a fixed seat assembly, a stator and rotor assembly and a planetary speed reduction assembly, the stator and rotor assembly comprises a stator iron core and a rotor, and the rotor is provided with a rotor connecting part. The planetary speed reduction assembly comprises a sun gear, a gear ring, a planet carrier, a plurality of planet gear shafts and a plurality of planet gears, the sun gear is provided with a sun gear part and a sun gear disc, and the sun gear is arranged on the supporting shaft in a sleeving mode and fixedly connected with the rotor connecting part through the sun gear disc; one end of the supporting shaft is provided with a sun gear, the other end of the supporting shaft is provided with a planet gear shaft, the planet gears are arranged on the corresponding planet gear shafts through bearing sleeves and meshed with the sun gear, the gear rings are arranged outside the planet gears in a sleeving mode and meshed with the planet gears, the other end of the supporting shaft is provided with a fixing base connecting part, and the fixing base assembly is fixedly connected to the fixing base connecting part. The device is high in reliability, long in service life, low in noise, compact in structure, small in size, light in weight and convenient to install and replace.

Description

Technical Field

[0001] This utility model relates to the field of hub motor technology, and in particular to a lawnmower motor with reduction gears. Background Technology

[0002] Lawn mowers are mainly used in parks, lawns, golf courses and other places where lawns need to be mowed regularly. The machines are small in size, light in weight and flexible in movement. Therefore, the motors used on the wheels of lawn mowers usually have corresponding requirements for their size, weight, noise, service life and ease of installation.

[0003] Currently, lawnmower motors on the market have the following problems: large size, heavy weight, inconvenient to carry, install and replace, and loud noise. Utility Model Content

[0004] To address the aforementioned problems, this utility model proposes a lawnmower motor with reduction gears that is highly reliable, has a long lifespan, low noise, compact structure, small size, light weight, and is easy to install and replace.

[0005] This utility model is achieved through the following technical solution: a lawnmower motor with reduction gears, including a support shaft, a hub assembly, a drive wheel assembly, a stator and rotor assembly disposed within the hub assembly, and a planetary reduction assembly. The stator and rotor assembly includes a stator core and a rotor arranged coaxially. The rotor has a rotor connection part, which is sleeved on the support shaft by two bearings. The planetary reduction assembly includes a sun gear, a gear ring, a planetary gear carrier, several planetary gear shafts, and several planetary gears.

[0006] Furthermore, the wheel hub assembly includes a wheel hub and a cover plate. The wheel hub is a semi-enclosed structure. The closed end of the wheel hub is sleeved on the support shaft through a bearing. The cover plate is sleeved on the support shaft through a bearing and pressed tightly to the open end of the wheel hub. An oil seal is provided between the outer side of the cover plate and the support shaft to ensure the sealing performance and cleanliness of the entire wheel hub assembly.

[0007] To improve the reliability and compactness of the structural connection, the drive wheel assembly is sleeved and connected to the hub. The sun gear has a sun gear section and a sun disk. The sun gear is sleeved on the support shaft and fixedly connected to the rotor connection section through the sun disk. The planetary gear carrier is sleeved and connected to one end of the support shaft. The planetary gear shafts are evenly arranged in the planetary gear carrier along the circumference. The planetary gears are sleeved on the corresponding planetary gear shafts through bearings and mesh with the sun gear. The gear ring is sleeved on the outside of the planetary gears and meshes with the planetary gears.

[0008] To facilitate quick assembly and disassembly of the motor and the lawnmower frame and improve installation and maintenance convenience, the lawnmower motor with reduction gear also includes a mounting bracket assembly. The other end of the support shaft has a mounting bracket connection part, and the mounting bracket assembly is fixedly connected to the mounting bracket connection part.

[0009] The mounting bracket assembly is used to quickly and conveniently install the motor onto the wheel-side frame of the lawnmower. It includes a motor mounting bracket and a mounting plate. The motor mounting bracket has a mounting bracket connection hole that matches the outer circle of the mounting bracket connection part. The mounting bracket connection part has an anti-rotation cutting surface. The motor mounting bracket is sleeved on the mounting bracket connection part. The mounting plate is set corresponding to the motor mounting bracket and fits against the anti-rotation cutting surface. The motor mounting bracket and the mounting plate are connected and fixedly clamped onto the mounting bracket connection part by fasteners.

[0010] To improve gear strength, enhance its impact resistance and transmission smoothness, extend motor lifespan, and reduce overall motor noise, the planetary gears, sun gear, and ring gear are all helical gears.

[0011] To ensure the sealing performance of the connection between the motor and the frame and prevent water from entering the internal wiring, a waterproof sealing plug is also included. The waterproof sealing plug is fitted onto the wiring passing between the mounting bracket assembly and the frame.

[0012] The beneficial effects of this utility model are as follows: This lawnmower motor with reduction gears increases torque and improves efficiency while reducing noise by designing a planetary reduction mechanism composed entirely of helical gears within the motor; by directly mounting the drive wheel skin onto the hub and optimizing the arrangement and connection of components such as the sun gear and rotor, the structural reliability of the lawnmower motor is improved while also increasing its structural compactness, reducing its size and weight, and enhancing its flexibility and portability; by designing a mounting bracket assembly consisting of a motor mounting base and a mounting plate at the end of the support shaft, the ease of installation and maintenance of the lawnmower motor is improved; in addition, the speed of this lawnmower motor with reduction gears can be adjusted according to work requirements. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the structure of the lawnmower motor with reduction gear of this utility model;

[0014] Figure 2 This is a cross-sectional view of the lawn mowing motor with reduction gear of this utility model;

[0015] Figure 3 This is an exploded view of the lawnmower motor with reduction gear of this utility model;

[0016] In the diagram: 1. Support shaft; 11. Fixed seat connection; 111. Anti-rotation slit; 2. Stator and rotor assembly; 21. Stator core; 22. Rotor; 221. Rotor connection; 3. Planetary reduction assembly; 31. Sun gear; 311. Sun gear section; 312. Sun disk; 32. Gear ring; 33. Planetary gear carrier; 34. Planetary gear shaft; 35. Planetary gear; 4. Drive wheel skin assembly; 5. Fixed seat assembly; 51. Motor mounting base; 511. Fixed seat connection hole; 52. Fixed plate; 6. Hub assembly; 61. Hub; 62. Cover plate; 7. Waterproof sealing plug; 8. Oil seal. Detailed Implementation

[0017] The preferred embodiments of the present invention will now be described in detail with reference to the accompanying drawings, so that the advantages and features of the present invention can be more easily understood by those skilled in the art, thereby providing a clearer and more definite definition of the scope of protection of the present invention.

[0018] like Figure 1-3 The illustrated lawnmower motor with reduction gears includes a support shaft 1, a drive wheel assembly 4, a mounting base assembly 5, a hub assembly 6, a waterproof sealing plug 7, a stator and rotor assembly 2 and a planetary reduction assembly 3 disposed within the hub assembly 6. The stator and rotor assembly 2 includes a stator core 21 and a rotor 22 coaxially arranged. The rotor has a rotor connecting part 221, which is sleeved on the support shaft 1 via two bearings. The planetary reduction assembly 3 includes a sun gear 31, a ring gear 32, a planetary gear carrier 33, several planetary gear shafts 34, and several planetary gears. The sun gear 31 has a sun gear portion 311 and a sun disk 312. The sun gear 31 is sleeved on the support shaft 1 and fixedly connected to the rotor connection portion 221 through the sun disk 312. The planetary gear carrier 33 is sleeved and connected to one end of the support shaft 1. The planetary gear shafts 34 are evenly arranged in the planetary gear carrier 33 along the circumference. The planetary gears 35 are sleeved on the corresponding planetary gear shafts 34 through bearings and mesh with the sun gear 31. The gear ring 32 is sleeved on the outside of the planetary gears 35 and meshes with the planetary gears 35.

[0019] The hub assembly 6 includes a hub 61 and a cover plate 62. The hub 61 is a semi-enclosed structure. The closed end of the hub 61 is sleeved on the support shaft 1 through a bearing. The cover plate 62 is sleeved on the support shaft 1 through a bearing and pressed tightly to the open end of the hub 61. An oil seal 8 is provided between the outer side of the cover plate 62 and the support shaft 1. The drive wheel skin assembly 4 is sleeved and connected to the hub 61.

[0020] The other end of the support shaft 1 has a fixed seat connection part 11. The fixed seat assembly 5 is fixedly connected to the fixed seat connection part 11. The fixed seat assembly 5 includes a motor fixed seat 51 and a fixing plate 52. The motor fixed seat 51 has a fixed seat connection hole 511 that matches the outer circle of the fixed seat connection part 11. The fixed seat connection part 11 has an anti-rotation cut surface 111. The motor fixed seat 51 is sleeved on the fixed seat connection part 11. The fixing plate 52 is set corresponding to the motor fixed seat 51 and fits against the anti-rotation cut surface 111. The motor fixed seat 51 and the fixing plate 52 are connected and fixedly clamped on the fixed seat connection part 11 by fasteners.

[0021] As an important component of the lawnmower's power transmission system, the reduction gear mower motor is installed by simply using fasteners to mount the entire motor onto the corresponding position on the lawnmower frame via the motor mounting bracket 51. The waterproof sealing plug 7 is fitted onto the wiring between the mounting bracket assembly and the frame. During operation, the stator and rotor assembly 2, acting as the motor, provides driving force for the vehicle's movement. The planetary reduction assembly 3 reduces speed and increases torque, ensuring stable operation of the lawnmower. The planetary gears 35, sun gear 31, and ring gear 32 within the planetary reduction assembly 3 are all helical gears, offering high impact resistance, smooth transmission, and low noise, providing a comfortable driving experience.

[0022] In all examples shown and described herein, any specific values ​​should be interpreted as merely exemplary and not as limitations; therefore, other examples of exemplary embodiments may have different values.

[0023] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0024] Furthermore, in the description of the embodiments of this utility model, unless otherwise explicitly specified and limited, the terms "installed," "connected," "linked," "set up," "equipped with," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. For those skilled in the art, the specific meaning of the above terms in this utility model can be understood according to the specific circumstances.

[0025] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0026] The embodiments described above are merely examples of several implementations of this utility model, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these modifications and improvements all fall within the protection scope of this utility model.

Claims

1. A lawnmower motor with a reduction gear, characterized in that: The system includes a support shaft, a hub assembly, a drive wheel assembly, a fixed seat assembly, a stator and rotor assembly disposed within the hub assembly, and a planetary reduction assembly. The stator and rotor assembly includes a stator core and a rotor coaxially arranged. The rotor has a rotor connection portion, which is sleeved on the support shaft via two bearings. The planetary reduction assembly includes a sun gear, a ring gear, a planetary gear carrier, several planetary gear shafts, and several planetary gears. The sun gear has a sun gear portion and a sun disk. The sun gear is sleeved on the support shaft and fixedly connected to the rotor connection portion via the sun disk. The planetary gear carrier is sleeved and connected to one end of the support shaft. The planetary gear shafts are evenly arranged circumferentially within the planetary gear carrier. The planetary gears are sleeved on the corresponding planetary gear shafts via bearings and mesh with the sun gear. The ring gear is sleeved outside the planetary gears and meshes with them. The other end of the support shaft has a fixed seat connection portion, and the fixed seat assembly is fixedly connected to the fixed seat connection portion. The drive wheel assembly is sleeved and connected to the hub assembly.

2. The lawnmower motor with reduction gear according to claim 1, characterized in that: The mounting bracket assembly includes a motor mounting bracket and a mounting plate. The motor mounting bracket has a mounting bracket connection hole that matches the outer circle of the mounting bracket connection part. The mounting bracket connection part has an anti-rotation tangential surface. The motor mounting bracket is sleeved on the mounting bracket connection part. The mounting plate is disposed corresponding to the motor mounting bracket and fits against the anti-rotation tangential surface. The motor mounting bracket and the mounting plate are connected and fixedly clamped onto the mounting bracket connection part by fasteners.

3. The lawnmower motor with reduction gear according to claim 1, characterized in that: The hub assembly includes a hub and a cover plate. The hub is a semi-enclosed structure. The closed end of the hub is sleeved on the support shaft via a bearing. The cover plate is sleeved on the support shaft via a bearing and pressed tightly to the open end of the hub. An oil seal is provided between the outer side of the cover plate and the support shaft.

4. The lawnmower motor with reduction gear according to claim 1, characterized in that: The planetary gears, sun gear, and ring gear are all helical gears.

5. The lawnmower motor with reduction gear according to claim 1, characterized in that: It also includes a waterproof sealing plug, which is fitted onto the wiring passing between the mounting bracket assembly and the frame.

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