High-strength and high-stability geared motor

Abstract

A high-strength, high-stability geared motor includes a motor body and a reduction housing. The motor body contains a stator, rotor, and motor shaft. A worm gear is located at the end of the motor shaft. An end cover is provided on the reduction housing, and an output shaft, rotatably mounted on the end cover and perpendicular to the motor shaft, is mounted on the end of the end cover. A planetary carrier is located at the end of the output shaft. A sun shaft and several planetary shafts are located on the surface of the planetary carrier away from the output shaft. The output shaft, planetary carrier, and sun shaft are integrally machined. A sun gear and a worm gear are mounted on the sun shaft, and the worm gear is connected to the worm gear drive. The sun gear and worm gear are integrally injection molded. Planetary gears meshing with the sun gear are mounted on each of the several planetary shafts. A gear ring meshing with several planetary gears is mounted on the outside of the planetary gears within the reduction housing cavity. This invention has the advantages of simple structure, reasonable design, convenient assembly, high output torque, and stable operation.

Description

Technical Field

[0001] This utility model relates to a geared motor, and more particularly to a high-strength, high-stability geared motor. Background Technology

[0002] Traditional geared motors mostly use large-tooth-number gears and small-tooth-number gears coaxially to provide different differential ratios to assist production. However, in special fields, gear sets with specific differential ratios and high torque are required. The traditional coaxial combination of large and small gears can no longer meet the production needs. Moreover, the pressure of single-gear transmission is much greater than that of multi-gear transmission, making it easy to be damaged and not resistant to impact, thus affecting its service life. Summary of the Invention

[0003] The purpose of this utility model is to overcome the shortcomings of the existing technology and provide a high-strength and high-stability geared motor with simple structure, reasonable design, convenient assembly, high output torque, and stable operation.

[0004] The technical solution adopted by this utility model to solve its technical problem is as follows: a high-strength and high-stability geared motor, including a motor body and a gear housing. The motor body is provided with a stator, a rotor, and a motor shaft. The end of the motor shaft extends through the motor body into the inner cavity of the gear housing and is provided with a worm gear at the end. The gear housing is provided with an end cover, and an output shaft is rotatably provided on the end cover. The output shaft is perpendicular to the motor shaft. The end of the output shaft is provided with a planetary carrier. A sun shaft is provided at the geometric center of the surface of the planetary carrier away from the output shaft. Several planetary shafts are uniformly riveted to the outer ring of the sun shaft along its circumference. The output shaft, planetary carrier, and sun shaft are integrally formed. A sun gear and a worm gear are sleeved on the sun shaft. The worm gear is connected to the worm gear for transmission. The sun gear and the worm gear are integrally injection molded. Each of the several planetary shafts is sleeved with a planet gear that meshes with the sun gear. A gear ring that meshes with several planet gears is sleeved on the outer side of the planet gears in the inner cavity of the gear housing. With the above structure, the output shaft, planetary carrier, and sun shaft are integrated into one unit, which can better ensure the concentricity accuracy requirements during assembly, improve the overall stability and consistency of the machine, and facilitate mass production. Through the coordinated transmission of worm gear, worm wheel, sun gear, planetary gear and gear ring, the overall operation is guaranteed to be smooth, the load-bearing capacity in all directions is balanced, and the self-locking force is enhanced.

[0005] Preferably, the motor body has four sets of mounting screws evenly distributed around its circumference, and the motor body is fixedly connected to the reduction gear housing by the four sets of mounting screws. This structure facilitates assembly and improves adaptability.

[0006] Preferably, a brush holder is provided between the motor body and the reduction gear housing, and a wiring harness assembly and a safety capacitor are connected to the brush holder. This structure facilitates overall use, and the safety capacitor acts as a filter, effectively preventing electromagnetic interference.

[0007] Preferably, the reduction gear housing and the end cover are fixedly connected by four connecting screws, and the reduction gear housing is provided with five mounting holes for installation. By adopting the above structure and increasing the number of mounting holes, the applicability of the entire machine can be expanded, making it suitable for applications such as awnings, car pedals, retractable gates, and roller shutters.

[0008] Preferably, the planetary support has four planetary axes evenly distributed around the outer ring of the sun axis.

[0009] This utility model has the advantages of simple structure, reasonable design, convenient assembly, high output torque, and stable operation. Attached Figure Description

[0010] Figure 1 This is a schematic diagram of the overall structure of an embodiment of the present utility model;

[0011] Figure 2 This is a side view of an embodiment of the present utility model;

[0012] Figure 3 This is a utility model Figure 2 AA section view;

[0013] Figure 4 This is an exploded view of the worm gear, sun gear, planet gear, and gear ring of this utility model.

[0014] In the diagram: 1. Motor body; 2. Gearbox housing; 3. Stator; 4. Rotor; 5. Motor shaft; 6. Worm gear; 7. End cover; 8. Output shaft; 9. Planetary carrier; 10. Sun shaft; 11. Planetary shaft; 12. Sun gear; 13. Worm gear; 14. Planetary gear; 15. Gear ring; 16. Mounting screw; 17. Brush holder; 18. Wiring harness assembly; 19. Safety capacitor; 20. Connecting screw; 21. Mounting hole. Detailed Implementation

[0015] The technical solution of this utility model will be further described in detail below through specific embodiments and in conjunction with the accompanying drawings. Example

[0016] like Figures 1 to 4The high-strength, high-stability geared motor shown includes a motor body 1 and a gearbox housing 2. The motor body 1 has four sets of mounting screws 16 evenly distributed around its circumference. The motor body 1 is fixedly connected to the gearbox housing 2 via these four sets of mounting screws 16, facilitating assembly and improving adaptability. The motor body 1 contains a stator 3, a rotor 4, and a motor shaft 5. The end of the motor shaft 5 extends through the motor body 1 into the inner cavity of the gearbox housing 2 and has a worm gear 6 at its end. A brush holder 17 is provided between the motor body 1 and the gearbox housing 2. The brush holder 17 has a wiring harness assembly 18 and a safety capacitor 19, facilitating overall use. The safety capacitor 19 provides filtering, effectively blocking electromagnetic interference. The gearbox housing 2 has an end cover 7, which is fixedly connected to the gearbox housing 2 by four connecting screws 20. The gearbox housing 2 has five mounting holes 21 for installation. Increasing the number of mounting holes 21 expands the overall applicability of the motor, making it suitable for applications such as awnings, car pedals, retractable gates, and roller shutters.

[0017] An output shaft 8 is rotatably mounted on the end cover 7. The output shaft 8 is perpendicular to the motor shaft 5. A planetary carrier 9 is provided at the end of the output shaft 8. A sun shaft 10 is provided at the geometric center of the surface of the planetary carrier 9 away from the output shaft 8. Four planetary shafts 11 are evenly riveted to the outer ring of the sun shaft 10 along its circumference. The output shaft 8, planetary carrier 9, and sun shaft 10 are integrally machined. The integrated structure of the output shaft 8, planetary carrier 9, and sun shaft 10 can better ensure the concentricity accuracy requirements during assembly, improve the operation stability and consistency of the whole machine, and is conducive to mass production.

[0018] A sun gear 12 and a worm gear 13 are mounted on the sun shaft 10. The worm gear 13 is connected to the worm 6 for transmission. The sun gear 12 and the worm gear 13 are integrally injection molded. Planet gears 14 that mesh with the sun gear 12 are mounted on several planet shafts 11. A gear ring 15 that meshes with several planet gears 14 is mounted on the outside of the planet gears 14 in the inner cavity of the reduction housing 2. Through the cooperation of the worm 6, worm gear 13, sun gear 12, planet gears 14 and gear ring 15, the overall operation is stable, the load is balanced in all directions, and the self-locking force is enhanced.

[0019] The embodiments described above are merely preferred solutions of this utility model and are not intended to limit this utility model in any way. Other variations and modifications are possible without departing from the technical solutions described in the claims.

Claims

1. A high-strength and high-stability reduction motor, comprising a motor body (1) and a reduction shell (2), characterized in that: The motor body (1) contains a stator (3), a rotor (4), and a motor shaft (5). The end of the motor shaft (5) extends through the motor body (1) into the inner cavity of the reduction housing (2) and has a worm gear (6) at its end. The reduction housing (2) has an end cover (7), and an output shaft (8) is rotatably mounted on the end cover (7). The output shaft (8) is perpendicular to the motor shaft (5). The end of the output shaft (8) has a planetary carrier (9). The planetary carrier (9) has a sun axis (10) at the geometric center of its surface away from the output shaft (8). The planetary carrier (9) is positioned on the sun axis (10). 0) Several planetary shafts (11) are evenly riveted to the outer ring along its circumference. The output shaft (8), planetary carrier (9), and sun shaft (10) are integrally formed. A sun gear (12) and a worm gear (13) are sleeved on the sun shaft (10). The worm gear (13) is connected to the worm (6) for transmission. The sun gear (12) and the worm gear (13) are integrally injection molded. A planetary gear (14) that meshes with the sun gear (12) is sleeved on each of the several planetary shafts (11). A gear ring (15) that meshes with several planetary gears (14) is sleeved on the outside of the planetary gears (14) in the inner cavity of the reduction housing (2).

2. The high-strength high-stability reduction motor according to claim 1, characterized by: The motor body (1) is provided with four sets of mounting screws (16) evenly distributed around its circumference. The motor body (1) is fixedly connected to the reduction housing (2) by the four sets of mounting screws (16).

3. The high-strength high-stability reduction motor according to claim 1, characterized by: A brush holder (17) is provided between the motor body (1) and the reduction housing (2), and a wire harness assembly (18) and a safety capacitor (19) are connected to the brush holder (17).

4. The high-strength, high-stability geared motor according to claim 1, characterized in that: The deceleration housing (2) and the end cover (7) are fixedly connected by four connecting screws (20). The deceleration housing (2) is provided with five mounting holes (21) for installation.

5. The high-strength, high-stability geared motor according to claim 1, characterized in that: The planetary support (9) has four planetary axes (11) evenly arranged around the outer ring of the sun axis (10).

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