Inner rotor reduction gearbox motor

Abstract

The utility model relates to an inner rotor reduction gearbox motor, which comprises a motor, the motor comprises a rotating part and a fixed part, the rotating part comprises a shaft core, a rotor iron core, a magnetic ring and a stator iron core, and the rotor iron core, the magnetic ring and the stator iron core are sequentially sleeved on the outer side of the shaft core; the fixed part comprises an upper wire frame and a lower wire frame which are used for fixing the rotor core, and the upper wire frame and the lower wire frame are respectively arranged at two ends of the rotating part; the gearbox is connected with the motor, and the gearbox is provided with an output shaft, a first planetary gear set and a second planetary gear set. The motor is small in size, low in rotating speed and capable of achieving large torque, gear abrasion of a motor gearbox affects the overall service life of the motor, the motor is a direct-current brushless inner rotor motor, the service life is prolonged, the motor output is high, the motor adopts an inductive Hall design, and the rotating speed can be accurately controlled.

Description

Technical Field

[0001] This utility model relates to the field of motors, and in particular to an internal rotor gearbox motor. Background Technology

[0002] The motors for cleaning robots working underwater have high requirements for waterproofing and high output torque. To meet the waterproofing requirements, existing waterproof motors have poor heat dissipation in the underwater working environment, and it is difficult to make existing motors small in size to meet the requirement of high output torque. Utility Model Content

[0003] This utility model provides an internal rotor gearbox motor, which aims to solve at least one of the technical problems existing in the prior art.

[0004] The technical solution of this utility model is an internal rotor gearbox motor, comprising:

[0005] An electric motor, comprising a rotating part and a fixed part, wherein the rotating part comprises a shaft core, a rotor core, a magnetic ring, and a stator core, and the rotor core, the magnetic ring, and the stator core are sequentially sleeved on the outside of the shaft core;

[0006] The fixing part includes an upper wire frame and a lower wire frame for fixing the rotor core, and the upper wire frame and the lower wire frame are respectively installed at both ends of the rotating part;

[0007] A gearbox connected to the motor, the gearbox being provided with an output shaft, a first planetary gear set, and a second planetary gear set.

[0008] Furthermore, it also includes a first bearing and a second bearing respectively installed at both ends of the shaft core.

[0009] Furthermore, it also includes a retaining ring, and the shaft core is provided with a shaft groove for mounting the retaining ring.

[0010] Furthermore, it also includes a motor drive gear, which is mounted on the front end of the shaft core and meshes with the input end of the gearbox.

[0011] Furthermore, the fixing part of the motor also includes a housing and a rear end cover, the rear end cover being installed on the outside of the upper wire frame; it also includes a spring and a graphite gasket, the spring and the graphite gasket being disposed between the rear end cover and the upper wire frame.

[0012] Furthermore, it also includes a driver board and silicone wires connected to the driver board, the driver board being installed inside the housing, and the silicone wires being used to connect to an external power source.

[0013] Furthermore, the rear end cover is provided with a wire-passing hole, through which the silicone wire passes, and the wire-passing hole is coated with sealant.

[0014] Furthermore, the motor is a DC brushless internal rotor motor.

[0015] Furthermore, the first planetary gear set includes a first planetary gear and a first sun gear connected in sequence, and the first planetary gear is connected to the output shaft via a planet carrier;

[0016] The second planetary gear set includes a second planetary gear and a second sun gear connected in sequence, with the second planetary gear connected to the first sun gear.

[0017] Furthermore, the gearbox also includes an end cover, a gear ring, at least one bearing, an inner retaining circlip, an outer retaining circlip, and a gasket;

[0018] The end cap is connected to the planetary carrier, and the bearing is installed in the joint between the output shaft and the end cap.

[0019] The beneficial effects of this utility model are as follows:

[0020] In this application, the motor achieves high torque with a small size and low speed. Wear of the motor gearbox gears will affect the overall life of the motor. The motor is a DC brushless internal rotor motor to improve its service life. The motor has high output power and uses a Hall effect sensor design to accurately control the speed. Attached Figure Description

[0021] Figure 1 This is an overall schematic diagram of the internal rotor gearbox motor according to an embodiment of this utility model.

[0022] Figure 2 This is an exploded view of the internal rotor gearbox motor according to an embodiment of the present invention.

[0023] Figure 3 This is an exploded view of the motor portion of the internal rotor gearbox motor according to an embodiment of the present invention.

[0024] Figure 4 This is an exploded view of the gearbox portion of the internal rotor reducer motor according to an embodiment of this utility model.

[0025] In the above diagram, 100 is the motor; 110 is the shaft core; 111 is the first bearing; 112 is the second bearing; 113 is the snap ring; 114 is the shaft groove; 115 is the motor drive gear; 120 is the rotor core; 130 is the magnetic ring; 140 is the stator core; 150 is the upper wire frame; 160 is the lower wire frame; 170 is the housing; 180 is the rear end cover; 181 is the spring; 182 is the graphite gasket; 190 is the drive plate; 1 91. Silicone wire; 200. Gearbox; 210. Output shaft; 220. First planetary gear set; 221. First planetary gear; 222. First sun gear; 230. Second planetary gear set; 231. Second planetary gear; 232. Second sun gear; 240. Planet carrier; 250. End cover; 260. Gear ring; 270. Bearing; 271. Inner snap ring; 272. Outer snap ring; 280. Washer. Detailed Implementation

[0026] The following will provide a clear and complete description of the concept, specific structure, and technical effects of this utility model in conjunction with the embodiments and accompanying drawings, so as to fully understand the purpose, solution, and effects of this utility model. It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other.

[0027] It should be noted that, unless otherwise specified, when a feature is referred to as "fixed" or "connected" to another feature, it can be directly fixed or connected to the other feature, or it can be indirectly fixed or connected to the other feature. Furthermore, the descriptions of "upper," "lower," "left," "right," "top," and "bottom" used in this utility model are only relative to the relative positional relationships of the various components of this utility model in the accompanying drawings.

[0028] Furthermore, unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art. The terminology used herein is for the purpose of describing particular embodiments only and not for limiting the scope of the invention. The term "and / or" as used herein includes any combination of one or more of the associated listed items.

[0029] It should be understood that although the terms first, second, third, etc., may be used in this disclosure to describe various elements, these elements should not be limited to these terms. These terms are only used to distinguish elements of the same type from one another. For example, without departing from the scope of this disclosure, a first element may also be referred to as a second element, and similarly, a second element may also be referred to as a first element.

[0030] Reference Figures 1 to 4 In some embodiments, an internal rotor gearbox motor according to the present invention includes:

[0031] The motor 100 includes a rotating part and a fixed part. The rotating part includes a shaft core 110, a rotor core 120, a magnetic ring 130, and a stator core 140. The rotor core 120, the magnetic ring 130, and the stator core 120 are sequentially sleeved on the outside of the shaft core 110.

[0032] The fixing part includes an upper wire frame 150 and a lower wire frame 160 for fixing the rotor core 120, and the upper wire frame 150 and the lower wire frame 160 are respectively installed at both ends of the rotating part;

[0033] Gearbox 200, which is connected to motor 100, is provided with output shaft 210, first planetary gear set 220 and second planetary gear set 230.

[0034] The beneficial effects of this utility model are as follows:

[0035] In this application, the motor achieves high torque despite its small size and low speed. Gear wear in the motor gearbox affects the overall lifespan of the motor; therefore, the motor is a DC brushless internal rotor motor, which extends its service life. The motor has high output power and utilizes a Hall effect sensor design for precise speed control. The motor achieves high torque despite its small size and low speed.

[0036] Specifically, the internal rotor reducer motor 100 is a structure consisting of a motor 100 and a gearbox 200, featuring low speed and high torque, and a flange-mounted oil seal for waterproofing. The entire machine meets the requirements of low speed and high torque, and can operate under load for over 1000 hours without abnormalities. The motor 100 is an internal rotor motor 100, with the gearbox 200 mounted on top. Adding the gearbox 200 allows for greater torque output within a smaller footprint.

[0037] Furthermore, refer to Figure 3 It also includes a first bearing 111 and a second bearing 112 respectively installed at both ends of the shaft core 110.

[0038] Furthermore, refer to Figure 3 It also includes a retaining ring 113, and the shaft core 110 is provided with a shaft groove 114 for mounting the retaining ring 113.

[0039] Furthermore, refer to Figure 2 It also includes a motor drive gear 115, which is mounted on the front end of the shaft core 110 and meshes with the input end of the gearbox 200.

[0040] Furthermore, refer to Figure 3 The fixing part of the motor 100 also includes a housing 170 and a rear end cover 180, the rear end cover 180 being installed on the outside of the upper wire frame 150;

[0041] It also includes a spring 181 and a graphite gasket 182, which are disposed between the rear end cover 180 and the upper wire frame 150.

[0042] Furthermore, refer to Figure 1 It also includes a drive board 190 and a silicone wire 191 connected to the drive board 190. The drive board 190 is installed inside the housing 170, and the silicone wire 191 is used to connect to an external power source.

[0043] Furthermore, refer to Figure 3 The rear end cover 180 is provided with a wire hole, through which the silicone wire 191 passes, and the wire hole is coated with sealant.

[0044] Specifically, the wire passage hole is designed for sealing with adhesive. The rear end cover 180 of the motor 100 has an opening for the lead wire harness of the motor 100; the opening is coated with sealant to seal and fix the wire harness and prevent foreign objects from entering the motor 100.

[0045] Furthermore, refer to Figures 1 to 3 The motor 100 is a DC brushless internal rotor motor.

[0046] Specifically, the use of a DC brushless internal rotor motor 100 improves service life, and the motor 100 has higher output power. In addition, the motor 100 uses a Hall effect sensor design, which can precisely control the speed.

[0047] Furthermore, refer to Figure 4 The first planetary gear set 220 includes a first planetary gear 221 and a first sun gear 222 connected in sequence. The first planetary gear is connected to the output shaft 210 through a planet carrier 240.

[0048] The second planetary gear set 230 includes a second planetary gear 231 and a second sun gear 232 connected in sequence, with the second planetary gear 231 connected to the first sun gear 222.

[0049] Furthermore, refer to Figure 4 The gearbox 200 also includes an end cover 250, a gear ring 260, at least one bearing 270, an inner retaining ring 271, an outer retaining ring 272, and a gasket 280;

[0050] The end cap 250 is connected to the planetary carrier 240, and the bearing is installed in the joint between the output shaft 220 and the end cap 250.

[0051] The above description is merely a preferred embodiment of this utility model. This utility model is not limited to the above-described embodiments. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of this disclosure, as long as they achieve the same technical effect, should be included within the scope of protection of this disclosure and fall under the protection scope of this utility model. Within the protection scope of this utility model, the technical solutions and / or implementation methods can have various modifications and variations.

Claims

1. An internal rotor gearbox motor, characterized in that, include: The motor (100) includes a rotating part and a fixed part. The rotating part includes a shaft core (110), a rotor core (120), a magnetic ring (130), and a stator core (140). The rotor core (120), the magnetic ring (130), and the stator core (140) are sequentially sleeved on the outside of the shaft core (110). The fixing part includes an upper wire frame (150) and a lower wire frame (160) for fixing the rotor core (120), and the upper wire frame (150) and the lower wire frame (160) are respectively installed at both ends of the rotating part; A gearbox (200) is connected to the motor (100). The gearbox (200) is provided with an output shaft (210), a first planetary gear set (220), and a second planetary gear set (230).

2. The internal rotor gearbox motor according to claim 1, characterized in that, It also includes a first bearing (111) and a second bearing (112) respectively installed at both ends of the shaft core (110).

3. The internal rotor gearbox motor according to claim 1, characterized in that, It also includes a retaining ring (113), and the shaft core (110) is provided with a shaft groove (114) for mounting the retaining ring (113).

4. The internal rotor gearbox motor according to claim 1, characterized in that, It also includes a motor drive gear (115), which is mounted on the front end of the shaft (110) and meshes with the input end of the gearbox (200).

5. The internal rotor gearbox motor according to claim 1, characterized in that, The fixing part of the motor (100) also includes a housing (170) and a rear end cover (180), the rear end cover (180) being installed on the outside of the upper wire frame (150); It also includes a spring (181) and a graphite gasket (182), which are disposed between the rear end cover (180) and the upper wire frame (150).

6. The internal rotor gearbox motor according to claim 5, characterized in that, It also includes a drive board (190) and a silicone wire (191) connected to the drive board (190), the drive board (190) being installed inside the housing (170), and the silicone wire (191) being used to connect to an external power source.

7. The internal rotor gearbox motor according to claim 6, characterized in that, The rear end cover (180) is provided with a wire hole, through which the silicone wire (191) passes. The wire hole is coated with sealant.

8. The internal rotor gearbox motor according to claim 1, characterized in that, The motor (100) is a DC brushless internal rotor motor.

9. The internal rotor gearbox motor according to claim 1, characterized in that, The first planetary gear set (220) includes a first planetary gear (221) and a first sun gear (222) connected in sequence. The first planetary gear is connected to the output shaft (210) through a planet carrier (240). The second planetary gear set (230) includes a second planetary gear (231) and a second sun gear (232) connected in sequence, with the second planetary gear (231) connected to the first sun gear (222).

10. The internal rotor gearbox motor (100) according to claim 9, characterized in that, The gearbox (200) also includes an end cap (250), a gear ring (260), at least one bearing (270), an inner retaining ring (271), an outer retaining ring (272), and a gasket (280). The end cap (250) is connected to the planetary carrier (240), and the bearing is installed in the joint between the output shaft (210) and the end cap (250).

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