A mute waterproof support connecting type mower hub reduction motor

Abstract

The utility model relates to hub reduction motor technical field, especially is connected type mower hub reduction motor of support of mute waterproof, including casing, the casing is the tubular structure that has the opening to set up one end, is provided with motor and planetary module in the casing, wherein: the motor has the main shaft of protruding both ends, the lower extreme of main shaft is connected with the bottom rotation of casing, the upper extreme of main shaft is connected with sun gear;The planetary group has the gear skeleton and the multiple planetary gears of rotation connection in the gear skeleton, the gear skeleton has fixed connection's upper planetary support and lower planetary support, the outside of upper planetary support is connected with first bearing;Through the integrated structure of upper planetary support and lower planetary support fixed connection, the gear skeleton is as the core assembly carrier, through the multiple positioning pins of connection between upper planetary support and lower planetary support, realize the rotation assembly of multiple planetary gears, simultaneously form the closed gear storehouse of enclosure, provide stable space for the meshing transmission of sun gear and planetary gear.

Description

Technical Field

[0001] This utility model relates to the field of hub geared motor technology, and in particular to a silent and waterproof bracket-connected lawnmower hub geared motor. Background Technology

[0002] With the continuous evolution of intelligent technologies, the fields of intelligent vehicles such as intelligent robots, autonomous vehicles, and electric balance vehicles, as well as civilian intelligent devices such as intelligent toys, intelligent lawnmowers, and robotic vacuum cleaners, have all achieved rapid development. During operation, these intelligent devices place stringent demands on the performance of their core power output components. As a key component integrating both drive and deceleration functions, the performance of the hub gear motor directly determines the operational stability, energy consumption level, and user experience of the final product.

[0003] Currently, the market demand for hub geared motors continues to rise, while the requirements for their technical specifications are also increasing. However, mainstream hub geared motors on the market generally suffer from a large number of parts and complex structures, including not only multi-stage gear meshing transmission mechanisms but also multiple positioning bearings and sealing components, resulting in a significant increase in the number of parts.

[0004] This situation directly leads to a series of drawbacks: First, the complex structure makes the assembly process of parts demanding in terms of manual skills and time-consuming, significantly increasing the overall production cost and making it difficult to meet the cost control requirements of low- and mid-range intelligent equipment; Second, too many transmission and support components occupy a lot of space, resulting in larger radial dimensions, longer axial lengths, and increased weight of the motor, which contradicts the strict requirements of intelligent robots, small intelligent toys, and other equipment for installation space, increases the difficulty of equipment design, and reduces the flexibility of equipment operation, which is not in line with the industry development trend of lightweighting and miniaturization; Third, the bearing sealing design is unreasonable, with many sealing parts, which increases the structural complexity.

[0005] In summary, existing hub geared motors are insufficient to meet the development needs of related industries, and developing hub geared motors with better performance has become an urgent technical problem to be solved in this field. Utility Model Content

[0006] To overcome the shortcomings mentioned above, this utility model aims to provide a technical solution that can solve the above problems.

[0007] A silent, waterproof, bracket-connected hub geared motor for lawnmowers includes a housing, which is a cylindrical structure with an opening at one end. Inside the housing are a motor and a planetary module. The motor has a main shaft extending to both ends. The lower end of the main shaft is rotatably connected to the bottom of the housing, and the upper end of the main shaft is connected to a sun gear. The planetary gear set has a gear frame and multiple planetary gears rotatably connected to the gear frame. The gear frame has an upper planetary carrier and a lower planetary carrier that are fixedly connected. A first bearing is connected to the outside of the upper planetary carrier. The upper planetary carrier abuts against the inside of the housing through the first bearing. A skeleton oil seal is also provided between the outside of the upper planetary carrier and the opening of the housing. The inside of the housing is sealed by the upper planetary carrier and the skeleton oil seal. A gear compartment is formed between the upper and lower planetary carriers. Multiple locating pins for connecting planetary gears are also connected between the upper and lower planetary carriers. Multiple planetary gears are rotatably connected to multiple locating pins. The side of the gear compartment is also provided with gear openings for the planetary gears to be exposed. The inner side of the housing is provided with an annular gear ring that meshes with the planetary gears. The motor is fixedly connected to the lower planetary carrier. The upper end of the main shaft extends into the gear compartment along the lower planetary carrier, so that the sun gear meshes in the middle of the planetary gears.

[0008] Preferably, the upper end of the upper planetary support is provided with a positioning groove, and a wiring channel is provided in the positioning groove, which extends through the lower planetary support.

[0009] Preferably, multiple evenly distributed connecting posts are provided at the lower edge of the upper planetary support and the upper edge of the lower planetary support. The upper and lower planetary supports are fixedly connected by screws through the connecting posts. A gear compartment is formed between the upper and lower planetary supports through the height of the connecting posts. A gear opening is formed between the upper and lower planetary supports through the interval between two adjacent connecting posts. The wiring channel extends from the upper end of the upper planetary support to the lower end of the lower planetary support along the connecting posts.

[0010] Preferably, a mounting base is provided on the motor, the mounting base is connected to the lower planetary support, and the motor and the planetary support are fixedly connected by screws through the mounting base.

[0011] Preferably, a bearing groove is provided at the bottom of the housing, and a second bearing is provided in the bearing groove. The lower end of the main shaft is rotatably connected to the housing through the second bearing.

[0012] Preferably, a third bearing is connected to the locating pin, and the planetary gear is rotatably connected to the locating pin through the third bearing.

[0013] Preferably, a retaining ring groove is provided on the inner side of the housing, and a retaining ring is installed in the retaining ring groove. The retaining ring is located between the first bearing and the skeleton oil seal. The retaining ring abuts against the upper end of the outer ring of the first bearing. A boss is provided on the outer side of the upper planetary support. The boss abuts against the lower end of the inner ring of the first bearing, so that the retaining ring restricts the planetary assembly and the motor within the housing.

[0014] Preferably, multiple evenly distributed large ribs are provided on the outer side of the shell, with the two ends of the large ribs respectively connected to the two ends of the shell. The large ribs have connecting through holes that pass through both ends, and insert nuts are embedded at both ends of the connecting through holes.

[0015] Preferably, the housing is made of plastic material, the gear frame is made of aluminum alloy material, the sun gear is made of powder metallurgy material, and the planetary gear is made of plastic material.

[0016] Compared with the prior art, the beneficial effects of this utility model are: The upper and lower planetary carriers are fixedly connected to form an integrated structure. The gear frame serves as the core assembly carrier. Multiple locating pins connecting the upper and lower planetary carriers enable the rotational assembly of multiple planetary gears, while simultaneously enclosing a closed gear chamber, providing a stable space for the meshing transmission of the sun gear and planetary gears. Furthermore, the gear frame can be directly fixed to the lawnmower product, providing a reliable mounting base for the entire motor, eliminating the need for additional fixing brackets on the lawnmower hub reduction motor, thus reducing the number of parts and simplifying the assembly process of the motor and the product. Moreover, the outer side of the upper planetary carrier is not only stably connected to the inner side of the housing via the first bearing, but also... The integrated gear frame design incorporates a skeleton oil seal at the housing opening. The gear frame's structure works in synergy with the oil seal to create a sealed environment inside the housing via the upper planetary support and the skeleton oil seal. This design prevents grass clippings and dust from entering during mowing operations, while also resisting the penetration of rainwater and dew, enhancing the motor's waterproof and dustproof performance, preventing internal component corrosion or short circuits, and extending its service life. This integrated gear frame design simplifies the structure and reduces costs while simultaneously optimizing the three core functions of transmission, fixation, and sealing, significantly improving the motor's overall performance. It not only meets the needs of complex outdoor mower operations but also adapts to the requirements of other similar smart devices.

[0017] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2This is a schematic diagram of the cross-sectional structure of this utility model; Figure 3 This is an exploded structural diagram of the present invention; Figure 4 This is a schematic diagram of the exploded structure of the planetary assembly in this utility model; Figure 5 This is a structural cross-sectional view of the gear skeleton in this utility model; Figure 6 This is a schematic diagram of the shell structure in this utility model.

[0020] The reference numerals and names in the figure are as follows: Housing 10, ring gear ring 11, bearing groove 12, second bearing 13, snap ring groove 14, snap ring piece 15, large rib 16, insert nut 17, motor 20, main shaft 21, sun gear 22, fixed seat 23, planetary gear 30, upper planetary support 41, positioning groove 411, wiring channel 412, boss 413, lower planetary support 42, first bearing 43, skeleton oil seal 44, gear compartment 45, positioning pin 46, third bearing 461, gear port 47, connecting column 48. Detailed Implementation

[0021] The technical solutions in the embodiments of this utility model will be clearly and completely described below. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0022] Please see Figure 1-6 In this embodiment of the utility model, a silent and waterproof bracket-connected lawnmower hub reduction motor includes a housing 10, which is a cylindrical structure with an opening at one end. A motor 20 and a planetary module are disposed inside the housing 10. The motor 20 has a main shaft 21 extending to both ends. The lower end of the main shaft 21 is rotatably connected to the bottom of the housing 10, and the upper end of the main shaft 21 is connected to a sun gear 22. The planetary gear set has a gear frame and multiple planetary gears 30 rotatably connected in the gear frame. The gear frame is fixedly connected to the product and then connected to the working head on the product through the housing 10. The gear frame has an upper planetary support 41 and a lower planetary support 42 fixedly connected. A first bearing 43 is connected to the outside of the upper planetary support 41. The upper planetary support 41 abuts against the inside of the housing 10 through the first bearing 43. A skeleton oil seal 44 is also provided between the outside of the upper planetary support 41 and the opening of the housing 10. The inside of the housing 10 is sealed by the upper planetary support 41 and the skeleton oil seal 44. A gear compartment 45 is formed between the upper planetary carrier 41 and the lower planetary carrier 42. Multiple locating pins 46 for connecting planetary gears 30 are also connected between the upper planetary carrier 41 and the lower planetary carrier 42. Multiple planetary gears 30 are rotatably connected to multiple locating pins 46. The side of the gear compartment 45 is also provided with a gear opening 47 for the planetary gears 30 to be exposed. The inner side of the housing 10 is provided with an annular gear ring 11 that meshes with the planetary gears 30. The motor 20 is fixedly connected to the lower planetary carrier 42. The upper end of the main shaft 21 extends into the gear compartment 45 along the lower planetary carrier 42, so that the sun gear 22 meshes in the middle of the planetary gears.

[0023] After the lawnmower hub reduction motor 20 is started, the main shaft 21 extending from both ends of the motor 20 begins to rotate first. Since the upper end of the main shaft 21 is fixedly connected to a sun gear 22, and the upper end of the main shaft 21 can extend along the corresponding structure of the lower planetary support 42 into the gear compartment 45 formed by the upper planetary support 41 and the lower planetary support 42, the sun gear 22 will rotate synchronously with the main shaft 21, directly driving the multiple planetary gears 30 meshing with it within the gear compartment 45 to rotate. Furthermore, because an annular gear ring 11 meshing with the planetary gears 30 is fixedly installed on the inner wall of the housing 10, the planetary gears 3... While rotating around the sun gear 22, the planetary gear 30 is also constrained by the meshing of the ring gear 11 and revolves along the inner side of the ring gear 11. Since the gear frame is fixedly connected to the motor 20, and the planetary gear 30 is rotatably connected between the upper planetary support 41 and the lower planetary support 42 via multiple positioning pins 46, the revolving motion of the planetary gear 30 drives the housing 10 to rotate through meshing with the ring gear 11. The housing 10 is then connected to the working head of the lawnmower, ultimately achieving power reduction transmission and output, providing stable driving force for the lawnmower's cutting operation. Simultaneously, the lower end of the main shaft 21 is rotatably connected to the bottom of the housing 10, and the upper planetary support 41 abuts against the inner side of the housing 10 via the first bearing 43. These two structural designs jointly ensure the smoothness of the entire transmission process. The skeleton oil seal 44 installed between the outer side of the upper planetary support 41 and the opening of the housing 10 effectively seals the internal cavity of the housing 10, preventing external dust, grass clippings, and other impurities from entering the internal transmission mechanism, thus avoiding affecting transmission efficiency and component lifespan.

[0024] In the above technical solution, the upper planetary support 41 and the lower planetary support 42 are fixedly connected to form an integrated structure. The gear frame serves as the core assembly carrier. Multiple positioning pins 46 connect the upper planetary support 41 and the lower planetary support 42, enabling the rotational assembly of multiple planetary gears 30. Simultaneously, a closed gear compartment 45 is formed, providing a stable space for the meshing transmission of the sun gear 22 and the planetary gears 30. Furthermore, the gear frame can be directly fixedly connected to the lawnmower product, providing a reliable mounting base for the motor 20 as a whole. No additional fixing bracket is needed on the lawnmower hub reduction motor 20, thus reducing the number of parts and simplifying the assembly process of the motor 20 and the product. Moreover, the outer side of the upper planetary support 41 is connected to the first bearing 43... The inner side of the housing 10 is stably connected, and a skeleton oil seal 44 is set in conjunction with the opening of the housing 10. The gear skeleton itself and the oil seal form a synergistic seal, so that the inside of the housing 10 is closed through the upper planetary support 41 and the skeleton oil seal 44. This not only prevents grass clippings and dust from entering during lawn mowing, but also resists the penetration of moisture such as rainwater and dew, improving the waterproof and dustproof performance of the motor 20, avoiding internal component corrosion or short circuits, and extending service life. This integrated gear skeleton design simplifies the structure and reduces costs while simultaneously optimizing the three core functions of transmission, fixing and sealing, significantly improving the overall performance of the motor 20. It not only meets the needs of lawn mowers in complex outdoor operation scenarios, but can also be adapted to the usage requirements of other similar smart devices.

[0025] Building upon the integrated gear frame design, the advantages of motor 20 are further enhanced through targeted material selection: The housing 10 is made of plastic, which, compared to traditional metal housings 10, significantly reduces material costs and processing difficulty, while also lightening the overall weight of motor 20, aligning better with the trend towards lightweight design. Simultaneously, plastic materials possess excellent insulation and corrosion resistance, helping to improve the durability of motor 20 after waterproofing and dustproofing, avoiding the problem of easy rusting of metal housings 10. The gear frame is made of aluminum alloy, which combines high strength and low density. This provides stable support for the assembly of planetary gears 30 and the fixation of motor 20, ensuring structural rigidity during transmission, while further controlling the weight of motor 20. Furthermore, the corrosion resistance of aluminum alloy is suitable for the damp outdoor operating environment of lawnmowers. It also features heat dissipation, extending the lifespan of the frame. The sun gear 22 is made of powder metallurgy material, which can achieve complex tooth shapes through precision molding, ensuring tooth surface accuracy and hardness. This meets the strength requirements of the sun gear 22 as a power input end, which needs to withstand long-term meshing impacts, avoiding the problems of easy wear of plastic materials and high costs of metal cutting. The planetary gear 30 is made of plastic material. On the one hand, the self-lubricating and low-friction characteristics of plastic material reduce frictional noise when meshing with the sun gear 22 and the ring gear 11, further optimizing the quiet performance of the motor 20. On the other hand, the lightweight and low-cost plastic material can reduce the inertial loss of the planetary gear 30 during operation, improve transmission efficiency, and avoid rigid impacts during metal gear meshing, extending the life of the overall transmission mechanism. In summary, this material combination design and integrated structure work synergistically to control costs and reduce weight while taking into account strength, quietness, and durability, making the motor 20 more suitable for the long-term use needs of lawnmowers in complex outdoor operating scenarios.

[0026] Please see Figure 1-5 Based on the above technical solution, it is further proposed that the upper planetary support 41 has a positioning groove 411 at its upper end, and a wiring channel 412 is formed in the positioning groove 411, which runs through the lower planetary support 42. The positioning groove 411 at the upper end of the upper planetary support 41 provides a precise positioning reference for the installation of the motor 20 and the lawnmower product, avoiding positional deviation during assembly, greatly improving the installation accuracy and efficiency of the motor 20, and ensuring stable subsequent power transmission. The wiring channel 412 running through the lower planetary support 42 in the positioning groove 411 can neatly store the internal wiring of the motor 20, avoiding damage caused by the exposed wiring rubbing against the transmission components. At the same time, the design of the wiring channel 412 extending along the connecting column 48 makes full use of the structural space of the connecting column 48, eliminating the need for additional wiring holes, ensuring a neat wiring layout, and not compromising the overall structural strength of the gear frame.

[0027] Multiple evenly distributed connecting posts 48 are provided at the lower edge of the upper planetary support 41 and the upper edge of the lower planetary support 42. The upper planetary support 41 and the lower planetary support 42 are fixedly connected by screws through the connecting posts 48. A gear compartment 45 is formed between the upper planetary support 41 and the lower planetary support 42 through the height of the connecting posts 48. A gear opening 47 is formed between the upper planetary support 41 and the lower planetary support 42 through the interval between two adjacent connecting posts 48. The wiring channel 412 extends from the upper end of the upper planetary support 41 to the connecting posts 48. The lower end of the lower planetary carrier 42; multiple evenly distributed connecting posts 48 along the edges of the upper planetary carrier 41 and the lower planetary carrier 42, on the one hand, are fixed with screws to achieve a stable connection between the two, which is convenient for later maintenance and component replacement. On the other hand, the height of the connecting posts 48 directly forms the gear compartment 45, and the interval between adjacent connecting posts 48 forms the gear opening 47. There is no need to design additional gear compartment 45 enclosure and gear opening structure, which simplifies the gear skeleton processing process, reduces the processing error of parts, and ensures that the planetary gear 30 can operate flexibly in the gear compartment 45 and mesh precisely with the ring gear 11.

[0028] Please see Figure 2-3 Based on the above technical solution, it is further proposed that a fixing seat 23 be provided on the motor 20, the fixing seat 23 be connected to the lower planetary support 42, and the motor 20 and the planetary support be fixedly connected by screws through the fixing seat 23; the fixing seat 23 can increase the contact area between the motor 20 and the lower planetary support 42, so that the connection is more evenly stressed and avoids loosening of the connection due to local stress concentration during long-term transmission. A bearing groove 12 is provided at the bottom of the housing 10, and a second bearing 13 is provided in the bearing groove 12. The lower end of the main shaft 21 is rotatably connected to the housing 10 through the second bearing 13. This can provide precise radial positioning for the main shaft 21. Together with the first bearing 43 at the planetary support 41, it can achieve double stable support at both ends of the main shaft 21, avoiding tooth surface wear or increased transmission noise caused by the shaking of the main shaft 21. Moreover, the double bearing support and the stable connection of the fixed seat 23 work together to ensure that the motor 20 can maintain structural stability under high torque output conditions, avoid displacement of transmission components due to vibration, further improve the overall operational reliability of the motor 20, and better meet the complex load requirements of the lawnmower when cutting hard weeds.

[0029] Please see Figure 2 and Figure 4Based on the above technical solution, it is further proposed that a third bearing 461 be connected to the positioning pin 46, and the planetary gear 30 be rotatably connected to the positioning pin 46 through the third bearing 461. The addition of the third bearing 461 can convert the sliding friction between the planetary gear 30 and the positioning pin 46 into rolling friction, reduce frictional resistance, make the rotation of the planetary gear 30 around the positioning pin 46 smoother, reduce transmission energy loss, improve the overall transmission efficiency of the motor 20, and better meet the operational requirements of the lawnmower that requires continuous and stable power output. In addition, the reduction of frictional resistance can also reduce the frictional noise generated when the planetary gear 30 rotates. Combined with the vibration suppression effect of the previous double bearing support, the quiet performance of the motor 20 is further optimized, reducing the noise interference to the surrounding environment when the lawnmower is operating outdoors.

[0030] Please see Figure 2-4 Based on the above technical solution, it is further proposed that a retaining ring groove 14 be opened on the inner side of the housing 10, and a retaining ring member 15 be installed in the retaining ring groove. The retaining ring member 15 is located between the first bearing 43 and the skeleton oil seal 44. The retaining ring member 15 abuts against the upper end of the outer ring of the first bearing 43. A boss 413 is provided on the outer side of the upper planetary support 41. The boss 413 abuts against the lower end of the inner ring of the first bearing 43, so that the retaining ring member 15 restricts the planetary set and the motor 20 within the housing 10. By directly restricting the planetary set and the motor 20 within the housing 10 by the retaining ring member 15, not only is the assembly process of the motor 20 simplified and the number of parts used reduced, but the planetary set and the motor 20 can also be quickly disassembled and assembled, which is convenient for the inspection or replacement of internal components during later maintenance. Moreover, the limiting design of the retaining ring member 15 and the boss 413 does not require excessive axial space, which can effectively control the overall size of the motor 20, which is in line with the industry development trend of lightweighting and miniaturization.

[0031] Please see Figure 1 and Figure 6Based on the above technical solution, it is further proposed that multiple evenly distributed large ribs 16 be provided on the outer side of the shell 10. The two ends of the large ribs 16 are respectively connected to the two ends of the shell 10. The interior of the large ribs 16 has a through hole that runs through both ends, and the two ends of the through hole are fitted with embedded nuts 17. This can enhance the overall structural strength and deformation resistance of the plastic shell 10, and prevent the shell 10 from cracking or deforming due to collision, vibration or uneven force during lawnmower operation. At the same time, the evenly distributed design makes the shell 10 more evenly stressed, which can effectively disperse the vibration generated by the motor 20 during operation and external impact, and ensure the stability of the internal transmission components and sealing structure. The through hole and embedded nuts 17 inside the large ribs 16 replace the traditional method of separately opening mounting holes or welding nuts on the surface of the shell 10. This not only avoids the damage to the strength of the shell 10 caused by separate openings, but also improves the thread strength of the connection part through the embedded nuts 17, ensuring that the screw can be firmly locked when the motor 20 is connected to the lawnmower body or working head, and preventing the connection from loosening due to vibration during long-term operation.

[0032] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention.

Claims

1. A silent and waterproof bracket-connected hub geared motor for lawnmowers, characterized in that, Includes a housing (10), which is a cylindrical structure with an opening at one end. Inside the housing (10) are a motor (20) and a planetary module, wherein: The motor (20) has a main shaft (21) extending to both ends. The lower end of the main shaft (21) is rotatably connected to the bottom of the housing (10), and the upper end of the main shaft (21) is connected to a sun gear (22). The planetary gear set has a gear frame and multiple planetary gears (30) rotatably connected in the gear frame. The gear frame has an upper planetary support (41) and a lower planetary support (42) fixedly connected. A first bearing (43) is connected to the outside of the upper planetary support (41). The upper planetary support (41) abuts against the inside of the housing (10) through the first bearing (43). A skeleton oil seal (44) is also provided between the outside of the upper planetary support (41) and the opening of the housing (10). The inside of the housing (10) is sealed by the upper planetary support (41) and the skeleton oil seal (44). A gear compartment (45) is formed between the upper planetary carrier (41) and the lower planetary carrier (42). Multiple positioning pins (46) for connecting planetary gears (30) are also connected between the upper planetary carrier (41) and the lower planetary carrier (42). Multiple planetary gears (30) are rotatably connected to multiple positioning pins (46). A gear opening (47) for the planetary gears (30) to be exposed is also provided on the side of the gear compartment (45). An annular gear ring (11) meshing with the planetary gears (30) is provided on the inner side of the housing (10). The motor (20) is fixedly connected to the lower planetary carrier (42). The upper end of the main shaft (21) extends into the gear compartment (45) along the lower planetary carrier (42), so that the sun tooth (22) meshes in the middle of the planetary teeth.

2. The silent and waterproof bracket-connected lawnmower hub reduction motor according to claim 1, characterized in that, The upper end of the upper planetary support (41) is provided with a positioning groove (411), and a wiring channel (412) is provided in the positioning groove (411). The wiring channel (412) passes through the lower planetary support (42).

3. The silent and waterproof bracket-connected lawnmower hub reduction motor according to claim 2, characterized in that, Multiple evenly distributed connecting posts (48) are provided at the lower edge of the upper planetary support (41) and the upper edge of the lower planetary support (42). The upper planetary support (41) and the lower planetary support (42) are fixedly connected by screws through the connecting posts (48). A gear compartment (45) is formed between the upper planetary support (41) and the lower planetary support (42) through the height of the connecting posts (48). A gear mouth (47) is formed between the upper planetary support (41) and the lower planetary support (42) through the interval between two adjacent connecting posts (48). The wiring channel (412) extends from the upper end of the upper planetary support (41) to the lower end of the lower planetary support (42) along the connecting posts (48).

4. The silent and waterproof bracket-connected lawnmower hub reduction motor according to claim 1, characterized in that, A mounting base (23) is provided on the motor (20). The mounting base (23) is connected to the lower planetary support (42). The motor (20) and the planetary support are fixedly connected by screws through the mounting base (23).

5. A silent and waterproof bracket-connected lawnmower hub reduction motor according to claim 1, characterized in that, A bearing groove (12) is provided at the bottom of the housing (10), and a second bearing (13) is provided in the bearing groove (12). The lower end of the main shaft (21) is rotatably connected to the housing (10) through the second bearing (13).

6. A silent and waterproof bracket-connected lawnmower hub reduction motor according to claim 1, characterized in that, A third bearing (461) is connected to the locating pin (46), and the planetary gear (30) is rotatably connected to the locating pin (46) through the third bearing (461).

7. A silent and waterproof bracket-connected lawnmower hub reduction motor according to claim 1, characterized in that, A retaining ring groove (14) is provided on the inner side of the housing (10), and a retaining ring (15) is installed in the retaining ring groove. The retaining ring (15) is located between the first bearing (43) and the skeleton oil seal (44). The retaining ring (15) abuts against the upper end of the outer ring of the first bearing (43). A boss (413) is provided on the outer side of the upper planetary support (41). The boss (413) abuts against the lower end of the inner ring of the first bearing (43), so that the retaining ring (15) restricts the planetary assembly and the motor (20) within the housing (10).

8. A silent and waterproof bracket-connected lawnmower hub reduction motor according to claim 1, characterized in that, On the outside of the shell (10), there are also a number of evenly distributed large ribs (16). The two ends of the large ribs (16) are respectively connected to the two ends of the shell (10). The interior of the large ribs (16) is provided with connecting through holes that pass through both ends. The two ends of the connecting through holes are fitted with insert nuts (17).

9. A silent and waterproof bracket-connected lawnmower hub reduction motor according to claim 1, characterized in that, The housing (10) is made of plastic material, the gear frame is made of aluminum alloy material, the sun gear (22) is made of powder metallurgy material, and the planetary gear (30) is made of plastic material.

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