CN113346675A

CN113346675A - Novel speed reducing motor

Info

Publication number: CN113346675A
Application number: CN202110759886.8A
Authority: CN
Inventors: 曾金龙; 黄成栋; 黄柒浩; 陈伟聪; 张锋
Original assignee: Guangdong Shunde Siga Motor Co ltd
Current assignee: Guangdong Minzhuo Mechanical And Electrical Co ltd
Priority date: 2021-07-05
Filing date: 2021-07-05
Publication date: 2021-09-03

Abstract

The invention relates to a novel speed reducing motor, a motor component comprises an end cover, an outer rotor, an inner stator, a mounting disc and a transmission shaft, the mounting disc comprises a mounting plate and a mounting sleeve, the outer rotor and the inner stator are sequentially arranged at the inner side of the end cover, the inner stator is sleeved at the outer side of the mounting sleeve, bearings are respectively arranged at the inner sides of the mounting sleeve and the mounting plate, the middle part of the transmission shaft is connected with the bearings, one end of the transmission shaft is connected with the end cover, the other end of the transmission shaft is connected with the speed reducing component in a transmission way, the mounting sleeve is fixedly connected with the speed reducing component, the motor component and the speed reducing component are conveniently and integrally controlled by a control component, the control component is sleeved at the outer side of the mounting sleeve, the space is reasonably utilized, the overall volume is reduced, the outer rotor is driven to rotate, the transmission shaft is driven to rotate by the end cover, the structure is simple, the axial size is small, the speed reducing component is respectively connected with the transmission shaft in a transmission way and fixedly connected with the mounting sleeve, and then connect as integral type structure, the structure is firm, small and the assembly precision is high, and then reduce the production of noise widely.

Description

Novel speed reducing motor

Technical Field

The invention relates to the technical field of speed reducing motors, in particular to a novel speed reducing motor.

Background

The speed reducing motor in the market is widely applied to the industrial field, household appliances and household products with medium precision. The speed reduction device has the main effects of improving the output torque and reducing the rotational inertia of the load while reducing the speed, and has the advantages of compact structure, small return clearance, higher precision and very large rated output torque.

However, the existing speed reducing motor has certain limitations, for example, the motor body is longer and cannot be applied to smaller products; the motor is connected with the planetary gear set through a coupler or other switching structures; the input rotating speed of the motor body end is high, and the noise is high; the rotation speed or torque control needs to be realized through a multi-stage planetary gear set, an encoder, manual speed regulation and other modes, so that the structure is complex, the size is large, the control is inconvenient, and the practicability and the applicability of the speed reducing motor are greatly limited.

Disclosure of Invention

In order to overcome the defects of the prior art, the invention aims to provide a novel speed reducing motor which is simple in structure, small in size, convenient for controlling the rotating speed and the torque and low in noise.

The technical scheme adopted by the invention is as follows:

the utility model provides a novel gear motor, include motor element and the speed reduction subassembly of being connected with motor element, motor element includes the end cover, the external rotor, the inner stator, mounting disc and transmission shaft, the mounting disc includes mounting panel and installation cover, external rotor and inner stator set gradually in the end cover inboard, the inner stator cup joints in the outside of installation cover, the inboard of installation cover and mounting panel all is equipped with the bearing, the middle part and the bearing of transmission shaft are connected, and its one end is connected with the end cover, the other end is connected with the speed reduction subassembly transmission, installation cover and speed reduction subassembly fixed connection.

Preferably, the control assembly is sleeved on the outer side of the mounting sleeve and is electrically connected with the motor assembly and the speed reduction assembly.

Preferably, the mounting plate further comprises a limiting ring, and the limiting ring is connected between the mounting plate and the mounting sleeve.

Preferably, a first bump is arranged on the outer side of the mounting sleeve, one end of the first bump is connected with the limiting ring, the other end of the first bump is connected with a second bump, the cross section of the second bump is smaller than that of the first bump, a first groove is arranged on the inner side of the control assembly, the first groove is clamped on the first bump, a second groove is arranged on the inner side of the inner stator, and the second groove is clamped on the second bump.

Preferably, one side of the control assembly is abutted with the limiting ring, and one side of the inner stator is abutted with the first bump.

Preferably, the first groove and the first bump are correspondingly provided with a plurality of grooves, and the second groove and the second bump are correspondingly provided with a plurality of grooves.

Preferably, the speed reduction assembly comprises a sun gear, a first planetary gear set, a first planet carrier, a second planetary gear set, a second planet carrier and an output shaft which are connected in sequence, an inner gear ring is sleeved on the outer side of the speed reduction assembly, and the first planetary gear set and the second planetary gear set are both in meshing connection with the inner gear ring.

Preferably, the mounting plate is fixedly connected with the inner gear ring, and the transmission shaft is connected with the sun gear.

Preferably, the middle part of the end cover is provided with an inner groove which is in a round table shape, the middle part of the end cover is provided with a fixed sleeve, and one end of the transmission shaft is fixed on the inner side of the fixed sleeve.

Preferably, the inner stator is an iron core, and the outer rotor is a magnetic ring.

The invention has the beneficial effects that:

this novel gear motor carries out integrated control through control assembly convenience to motor element and speed reduction assembly, and control assembly cup joints in the outside of installation cover, the rational utilization space, reduce whole volume, it is rotatory to drive the external rotor, and then it is rotatory to drive the transmission shaft through the end cover, simple structure and axial dimension are little, speed reduction assembly respectively with the transmission shaft transmission be connected and with installation cover fixed connection, and then connect formula structure as an organic whole, the structure is firm, small and assembly precision is high, and then the production of noise abatement widely.

Drawings

FIG. 1 is a schematic structural diagram of the present invention.

Fig. 2 is an exploded view of the present invention.

Fig. 3 is an enlarged schematic view of a point a in fig. 2.

Fig. 4 is a cross-sectional view of the end cap.

In the figure: 1. a motor assembly; 11. an end cap; 12. an outer rotor; 13. an inner stator; 131. a second groove; 14. mounting a disc; 141. mounting a plate; 142. installing a sleeve; 1421. a first bump; 1422. a second bump; 143. a limiting ring; 15. a drive shaft; 2. a speed reduction assembly; 21. a sun gear; 22. a first planetary gear set; 23. a first carrier; 24. a second planetary gear set; 25. a second planet carrier; 26. an output shaft; 3. a bearing; 4. a control component; 41. a first groove; 5. an inner gear ring; 6. an inner groove; 7. and (4) fixing sleeves.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-4, the present invention provides a technical solution: the utility model provides a novel gear motor, including motor element 1 and the speed reduction subassembly 2 of being connected with motor element 1, motor element 1 includes end cover 11, outer rotor 12, inner stator 13, mounting disc 14 and transmission shaft 15, mounting disc 14 includes mounting panel 141 and installation cover 142, outer rotor 12 and inner stator 13 set gradually in 11 inboards of end cover, inner stator 13 cup joints in the outside of installation cover 142, the inboard of installation cover 142 and mounting panel 141 all is equipped with bearing 3, the middle part and the bearing 3 of transmission shaft 15 are connected, and its one end is connected with end cover 11, the other end is connected with speed reduction subassembly 2 transmission, installation cover 142 and speed reduction subassembly 2 fixed connection.

In order to conveniently carry out integrated control to motor element 1 and speed reduction subassembly 2, and the space of rational utilization, reduce whole volume, in this embodiment, it is preferred, control assembly 4 has been cup jointed in the outside of installation cover 142, and control assembly 4 passes through electric connection with motor element 1 and speed reduction subassembly 2, and control assembly 4 also can set up outside motor element 1.

In order to facilitate positioning and installation and improve structural stability, in this embodiment, preferably, the mounting plate 14 further includes a limiting ring 143, and the limiting ring 143 is connected between the mounting plate 141 and the mounting sleeve 142.

In order to further improve the structural stability, in this embodiment, preferably, a first protrusion 1421 is disposed on an outer side of the mounting sleeve 142, one end of the first protrusion 1421 is connected to the limiting ring 143, the other end of the first protrusion 1421 is connected to a second protrusion 1422, a cross section of the second protrusion 1422 is smaller than a cross section of the first protrusion 1421, a first groove 41 is disposed on an inner side of the control component 4, the first groove 41 is clamped on the first protrusion 1421, a second groove 131 is disposed on an inner side of the inner stator 13, and the second groove 131 is clamped on the second protrusion 1422, so as to prevent circumferential displacement of the inner stator 13 and the control component 4.

In order to facilitate positioning and installation and improve structural stability, in the present embodiment, it is preferable that one side of the control assembly 4 abuts against the limit ring 143 and one side of the inner stator 13 abuts against the first protrusion 1421, so as to prevent the inner stator 13 and the control assembly 4 from being axially displaced.

In order to further improve the structural stability, in this embodiment, preferably, the first groove 41 and the first protrusion 1421 are correspondingly provided with a plurality of grooves, and the second groove 131 and the second protrusion 1422 are correspondingly provided with a plurality of grooves, so as to prevent the inner stator 13 and the control assembly 4 from circumferentially displacing.

In order to improve the output torque and reduce the rotational inertia of the load, in the embodiment, preferably, the speed reduction assembly 2 includes a sun gear 21, a first planetary gear set 22, a first planet carrier 23, a second planetary gear set 24, a second planet carrier 25, and an output shaft 26, which are connected in sequence, an inner ring gear 5 is sleeved on an outer side of the speed reduction assembly 2, and both the first planetary gear set 22 and the second planetary gear set 24 are in meshing connection with the inner ring gear 5, wherein the speed reduction assembly 2 can be further configured to be single-stage speed reduction or multi-stage speed reduction, and an oil storage tank is designed in the speed reduction assembly 2, so that lubricating oil is conveniently added to improve the smoothness.

For convenience of driving, in this embodiment, it is preferable that the mounting plate 141 is fixedly connected to the inner ring gear 5, wherein the mounting plate 141 and the inner ring gear 5 can be fixedly connected by means of a snap, a screw, or ultrasonic welding, the transmission shaft 15 is connected to the sun gear 21, wherein the sun gear 21 and the transmission shaft 15 can be integrally designed or independently designed, and are engaged with each other by means of gears when independently designed.

In order to reduce the axial dimension conveniently, in this embodiment, preferably, the middle portion of the end cover 11 is provided with an inner groove 6, the inner groove 6 is arranged in a circular truncated cone shape, the middle portion of the end cover is provided with a fixing sleeve 7, and one end of the transmission shaft 15 is fixed on the inner side of the fixing sleeve 7, so as to improve the connection stability of the transmission shaft 15.

For driving convenience, in this embodiment, it is preferable that the inner stator 13 is an iron core, and the outer rotor 12 is a magnetic ring.

The working principle and the using process of the invention are as follows: motor element 1 is permanent magnetism brushless DC motor, can be the drive of two poles of the earth or even number utmost point electromagnetism mode, conveniently carry out integrated control to motor element 1 and speed reduction subassembly 2 through control assembly 4, and control assembly 4 cup joints in the outside of installation cover 142, the space is rationally utilized, reduce whole volume, drive external rotor 12 is rotatory, and then it is rotatory to drive transmission shaft 15 through end cover 11, simple structure and axial dimension are little, speed reduction subassembly 2 respectively with transmission shaft 15 transmission connection and with installation cover 142 fixed connection, and then connect formula structure as an organic whole, the structure is firm, small and assembly precision is high, and then the production of noise abatement widely.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that changes may be made in the embodiments and/or equivalents thereof without departing from the spirit and scope of the invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The utility model provides a novel gear motor, includes motor element (1) and the speed reduction subassembly (2) of being connected with motor element (1), its characterized in that: the motor assembly (1) comprises an end cover (11), an outer rotor (12), an inner stator (13), a mounting disc (14) and a transmission shaft (15), wherein the mounting disc (14) comprises a mounting plate (141) and a mounting sleeve (142), the outer rotor (12) and the inner stator (13) are sequentially arranged on the inner side of the end cover (11), the inner stator (13) is sleeved on the outer side of the mounting sleeve (142), bearings (3) are respectively arranged on the inner sides of the mounting sleeve (142) and the mounting plate (141), the middle of the transmission shaft (15) is connected with the bearings (3), one end of the transmission shaft is connected with the end cover (11), the other end of the transmission shaft is in transmission connection with a speed reduction assembly (2), and the mounting sleeve (142) is fixedly connected with the speed reduction assembly (2).

2. The novel gear motor according to claim 1, characterized in that: the outer side of the mounting sleeve (142) is sleeved with a control assembly (4), and the control assembly (4) is electrically connected with the motor assembly (1) and the speed reduction assembly (2).

3. The novel gear motor according to claim 2, characterized in that: the mounting disc (14) further comprises a limiting ring (143), and the limiting ring (143) is connected between the mounting plate (141) and the mounting sleeve (142).

4. The novel gear motor according to claim 3, characterized in that: the outer side of the mounting sleeve (142) is provided with a first bump (1421), one end of the first bump (1421) is connected with the limiting ring (143), the other end of the first bump (1421) is connected with a second bump (1422), the cross section of the second bump (1422) is smaller than that of the first bump (1421), the inner side of the control component (4) is provided with a first groove (41), the first groove (41) is clamped on the first bump (1421), the inner side of the inner stator (13) is provided with a second groove (131), and the second groove (131) is clamped on the second bump (1422).

5. The novel gear motor according to claim 4, characterized in that: one side of the control component (4) is abutted with the limiting ring (143), and one side of the inner stator (13) is abutted with the first bump (1421).

6. The novel gear motor according to claim 4, characterized in that: the first groove (41) and the first bump (1421) are correspondingly provided with a plurality of grooves, and the second groove (131) and the second bump (1422) are correspondingly provided with a plurality of protrusions.

7. The novel gear motor according to claim 1, characterized in that: the speed reduction assembly (2) comprises a sun gear (21), a first planetary gear set (22), a first planet carrier (23), a second planetary gear set (24), a second planet carrier (25) and an output shaft (26), wherein the sun gear, the first planet gear set (22), the second planet carrier (25) and the output shaft (26) are sequentially connected, an inner gear ring (5) is sleeved on the outer side of the speed reduction assembly (2), and the first planetary gear set (22) and the second planetary gear set (24) are both connected with the inner gear ring (5) in a meshed mode.

8. The novel gear motor according to claim 7, characterized in that: the mounting plate (141) is fixedly connected with the inner gear ring (5), and the transmission shaft (15) is connected with the sun gear (21).

9. The novel gear motor according to claim 1, characterized in that: the middle part of end cover (11) is equipped with inner groovy (6), inner groovy (6) are round platform form setting, and its middle part is equipped with fixed cover (7), the one end of transmission shaft (15) is fixed in the inboard of fixed cover (7).

10. The novel gear motor according to claim 1, characterized in that: the inner stator (13) is an iron core, and the outer rotor (12) is a magnetic ring.