KR20160120071A - Cyclo speed reducing apparatus for small sized and high torque transmission - Google Patents

Cyclo speed reducing apparatus for small sized and high torque transmission Download PDF

Info

Publication number
KR20160120071A
KR20160120071A KR1020150049110A KR20150049110A KR20160120071A KR 20160120071 A KR20160120071 A KR 20160120071A KR 1020150049110 A KR1020150049110 A KR 1020150049110A KR 20150049110 A KR20150049110 A KR 20150049110A KR 20160120071 A KR20160120071 A KR 20160120071A
Authority
KR
South Korea
Prior art keywords
drive shaft
driven
electric
main body
teeth
Prior art date
Application number
KR1020150049110A
Other languages
Korean (ko)
Inventor
최진웅
황윤선
이지열
주남식
Original Assignee
최진웅
황윤선
이지열
주남식
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 최진웅, 황윤선, 이지열, 주남식 filed Critical 최진웅
Priority to KR1020150049110A priority Critical patent/KR20160120071A/en
Publication of KR20160120071A publication Critical patent/KR20160120071A/en

Links

Images

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H1/00—Toothed gearings for conveying rotary motion
    • F16H1/02—Toothed gearings for conveying rotary motion without gears having orbital motion
    • F16H1/24—Toothed gearings for conveying rotary motion without gears having orbital motion involving gears essentially having intermeshing elements other than involute or cycloidal teeth
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H48/00—Differential gearings
    • F16H48/06—Differential gearings with gears having orbital motion
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K7/00—Arrangements for handling mechanical energy structurally associated with dynamo-electric machines, e.g. structural association with mechanical driving motors or auxiliary dynamo-electric machines
    • H02K7/10—Structural association with clutches, brakes, gears, pulleys or mechanical starters
    • H02K7/116—Structural association with clutches, brakes, gears, pulleys or mechanical starters with gears
    • F16H2048/06—

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Power Engineering (AREA)
  • Retarders (AREA)

Abstract

The present invention relates to a cyclic differential reduction device comprising: a main body (10); A drive shaft 20 rotatably supported on the main body 10 and having an upstream end 21 and a downstream end 22 eccentrically; An electric disk (30) rotatably coupled to the downstream end (22) of the drive shaft (20) inside the main body (10) and having N cyclodic teeth on its outer circumferential surface or inner circumferential surface; And a driven plate (40) having a number of driven pins (41) different from N so as to partially contact the teeth of the electric disk (30).
Accordingly, the electric power of the electric motor is converted into a mechanical force to perform a predetermined operation, and it is possible to cope with a high load or an impact load based on a small structure, and to prevent durability degradation.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a small-

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a cyclic differential speed reducing device, and more particularly, to a small cycle differential speed reducing device for high torque transmission that converts a electric power of a motor into a mechanical force to perform a predetermined operation.

Cyclo speed reducers can be made compact and lightweight based on the cicloid tooth profile, while maintaining a large reduction ratio and being highly buffered and durable. For example, it is applied not only to precision control of aerospace and semiconductor equipment but also to geared motors for electric winch or electric bicycle as a small power transmission device.

As prior art documents that can be referred to in this connection, Korean Patent Laid-Open Publication No. 2014-0053287 (Prior Art 1) and Korean Patent Laid-Open Publication No. 2014-0132216 (Prior Art 2) are known.

Prior Art 1 is a motor type drum, comprising: a drum shell; A motor disposed within the drum shell and having a motor rotor; A cyclodicy reducer for generating a reduced rotational speed with respect to a rotational speed of the motor at an output portion; And a hollow input shaft through which a plurality of various components are received. Thus, the effect of maintaining a relatively constant torque and efficiency curve over a wide speed range is expected.

The prior art 2 includes a rotor core which is rotated by the magnetization of the stator winding and is mounted on an eccentric bearing mounted on the input shaft to rotate by the magnetic field of the stator winding and by the eccentric bearing . Accordingly, the cost is reduced by eliminating the permanent magnet, and the manufacturing process is expected to have a simple effect.

However, according to the method of connecting the guide pin to the opening of the cyclodial disk in the prior art document 1 and the method of accommodating the roller in the driving hole of the rotor core in the prior art document 2, there is a limit to miniaturization of the cyclic differential slowdown device, When the impact load is transmitted, the durability may be lowered due to the increase of the abrasion.

1. Korean Patent Laid-Open Publication No. 2014-0053287 "Cycle Reducer Device" (Published on May 5, 2014) 2. Korean Utility Model Publication No. 2014-0132216 entitled "In-wheel motor system" (Published on November 17, 2014)

SUMMARY OF THE INVENTION It is an object of the present invention to overcome the above-mentioned problems of the prior art by providing a high torque transmission system capable of handling a high load or an impact load based on a small structure in performing a predetermined operation by converting electric power of a motor into mechanical force And a small-cycle differential decelerating device.

In order to achieve the above object, the present invention provides a cyclic differential speed reducing apparatus comprising: a main body; A drive shaft rotatably supported on the main body, the drive shaft having an upstream end and a downstream end eccentrically supported; An electric disk rotatably coupled to a downstream end of the drive shaft in the main body and having N number of cycloid teeth on an outer circumferential surface or an inner circumferential surface; And a driven plate having a number of driven pins differing from N to partially contact the teeth of the electric disk.

In a detailed configuration of the present invention, the driven pin is provided with (N + 1) corresponding to the electric disk of the external gear, and (N-1) corresponding to the electric disk of the internal gear .

As a detailed configuration of the present invention, the driven pin of the driven plate is rotatably disposed independently of the coin.

As a detailed configuration of the present invention, the driven plate is coaxially connected to one end of a winding bobbin concentrically surrounding the drive shaft.

As a detailed configuration of the present invention, the winding bobbin is rotatably supported on a pair of opposite guide plates, and is connected to an electric motor at the other end to perform a function of a winch.

As described above, according to the present invention, the electric power of the electric motor is converted into a mechanical force to perform a predetermined operation, and it is possible to cope with a high load or an impact load based on a small structure, and to prevent durability degradation.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a block diagram showing an example in which an apparatus according to the present invention is applied; FIG.
Figure 2 is a schematic diagram showing the main part of the device according to the invention
FIGS. 3 and 4 are diagrams showing a main part of an apparatus according to a modification of the present invention
5 is a schematic diagram sequentially showing the operating state of the apparatus according to the present invention.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings.

The present invention proposes a cyclic differential speed reducing device. Cyclo speed reducer is a eccentric differential type speed reducer which is based on a cycloid gear to realize a compact, high speed reduction ratio and quiet driving.

In accordance with the present invention, the body 10 is defined to include a housing 11 for receiving a primary workpiece. FIG. 1 illustrates an electric winch such as a wire harness and a winder, and the body 10 has a structure that forms an opening at a central portion thereof.

According to the present invention, a drive shaft 20 having an upstream end 21 and a downstream end 22 in an eccentric shape is rotatably supported on the main body 10. [ The upstream end 21 and the downstream end 22 of the drive shaft 20 are named based on the flow through which the power is transmitted. The downstream end (22) is integrally formed to be eccentric with the upstream end (21). That is, the structure is the same as the upstream end 21 as a whole, and the downstream end 22 is formed in a part thereof. The drive shaft (20) is rotatably supported on the housing (11) of the main body (10) via a bearing.

According to the present invention, an electric disk 30 having N number of cycloid teeth on the outer circumferential surface or the inner circumferential surface is rotatably coupled to the downstream end 22 of the drive shaft 20 in the body 10. [ The electric disk (30) is mounted on the downstream end (22) of the drive shaft (20) as a part corresponding to the cycloid gear in the cycloconductor so as to be eccentrically rotatable via an eccentric bearing. In Fig. 2, the electric disk 30 is illustrated as a circumscribed gear having (N = 9) number of cycloid teeth on the outer circumferential surface.

According to the present invention, there is provided a structure in which the driven plate (40) has a number of driven pins (41) different from N so as to partially contact the teeth of the electric disk (30). The driven pin 41 is installed on the driven plate 40 which is adjacent to the inner surface of the main body 10 but concentrically arranged with the drive shaft 20. [ The number of the driven pins 41 is different from the number of teeth of the electric disk 30 in order to apply the basic operating principle of the cycle reducer.

(N + 1) corresponding to the electric disk 30 of the external gear, and corresponding to the electric disk 30 of the internal gear as (N-1 ). Fig. 2 shows ten driven pins 41 corresponding to nine teeth of the electric disk 30 of the external gear. Fig. 3 (a) shows seven driven pins 41 corresponding to six teeth of the electric disk 30 of the external gear, Fig. 3 (b) shows eight electric disks 30 ' And seven driven pins 41 corresponding to the tooth profile. Fig. 4 (a) shows 20 electric driven disks 30 corresponding to 19 teeth, and Fig. 4 (b) shows 21 electric disks 30 ' And 20 driven pins 41 corresponding to the tooth profile.

2, the upstream end 21 of the drive shaft 20 has a diameter of 12 mm, the downstream end 22 has a diameter of 18 mm, the outer diameter of the eccentric bearing 25 is 24 mm, The diameter of the driven pin 31 is 59 mm, the diameter of the driven pin 41 is 12 mm, and the diameter of the circumference where the center of the driven pin 41 is disposed (pitch diameter) is 65 mm. 4, the eccentricity of the upstream end 21 and the downstream end 22 of the drive shaft 20 is 1.8 mm, the diameter of the tip 31 of the electric disk 30 is 68.4 mm, The diameter is 7.2 mm, and the pitch diameter of the driven pin 41 is 72 mm.

As a detailed configuration of the present invention, the driven pin (41) of the driven plate (40) is arranged so as to be independently rotatable on the same axis. The driven pin (41) is rotatably mounted on the driven plate (40) via a bearing. While the plurality of driven pins (41) are in contact with the electric disk (30) sequentially, the sliding friction is reduced while the deceleration and the function of torque increase are performed.

As described above, the electric disk 30 according to the present invention can omit one of the pair of cycloid gears and omit the connecting pin, so that it is advantageous in downsizing design, and the driven pin 30, which rotates on the tooth surface of the electric disk 30, And the durability can be expected to be improved by reducing the friction by disposing the flange 41.

5 (a) to 5 (d), the state in which the drive shaft 20 rotates once in the clockwise direction is divided into quarters so that the electric disk 30 and the driven plate 40 are rotated in the counterclockwise direction . The electric disk 30 rotates counterclockwise together with the eccentric motion, causing the driven pin 41 to rotate and revolve. Thus, it can be seen that the driven plate 40 is decelerated to A, A ', A "during one rotation of the drive shaft 20.

The driven plate 40 is connected to one end of the winding bobbin 45 concentrically surrounding the drive shaft 20 as a detailed configuration of the present invention. Referring to FIG. 1, the winding bobbin 45 is rotatably supported on the outside of the drive shaft 20 so as to be independently rotatable. One end of the winding bobbin (45) is connected to the driven plate (40) in a coincident manner. In actual production, it is advantageous to miniaturize that the driven plate 40 and the winding bobbin 45 are integrally formed.

As a detailed configuration of the present invention, the winding bobbin 45 is rotatably supported on a pair of opposite guide plates 13, and is connected to the electric motor 15 at the other end to perform a function of a winch . 1, a pair of guide plates 13 are fixed on a housing 11, and a winding bobbin 45 is rotatably received on a guide plate 13. The rotor 16 accommodated in the electric motor 15 in the one guide plate 13 is connected to the drive shaft 20 and the electric disk 30 accommodated in the main body 10 in the one guide plate 13 is connected to the drive shaft 20 . A guide plate (43) is coupled to the winding bobbin (45) so as to be interlocked with the inside of the guide plate (13). Thus, when the motor 15 is operated, the pulling plate 40 and the winding bobbin 45 can be wound around the pulling wire (not shown) at a high torque in a decelerated state to perform the winch function.

It will be apparent to those skilled in the art that various modifications and variations can be made in the present invention without departing from the spirit and scope of the invention as defined by the appended claims. It is therefore intended that such variations and modifications fall within the scope of the appended claims.

10: main body 11: housing
13: guide plate 15: electric motor
16: rotor 20: drive shaft
21: upstream end 22: downstream end
25: eccentric bearing 30, 30 ': electric disk
31: Diptera 32: Diptera
40: driven plate 41: driven pin
43: guide plate 45: winding bobbin

Claims (5)

A cyclic differential speed reducing apparatus comprising:
A main body 10;
A drive shaft 20 rotatably supported on the main body 10 and having an upstream end 21 and a downstream end 22 eccentrically;
An electric disk (30) rotatably coupled to the downstream end (22) of the drive shaft (20) inside the main body (10) and having N cyclodic teeth on its outer circumferential surface or inner circumferential surface; And
And a driven plate (40) having a number of driven pins (41) different from N so as to partially contact the teeth of the electric disk (30). The method according to claim 1,
The driven pin 41 has (N + 1) teeth corresponding to the electric disk 30 of the external gear and has (N-1) teeth corresponding to the electric disk 30 of the internal gear Speed, small-cycle differential reduction device for high-torque transmission. The method according to claim 1,
Characterized in that the driven pin (41) of the driven plate (40) is arranged so as to be independently rotatable on a concentric circle. The method of claim 3,
Wherein the driven plate (40) is concentrically connected to one end of a winding bobbin (45) concentrically surrounding the drive shaft (20). The method of claim 4,
Characterized in that the winding bobbin (45) is rotatably supported on a pair of opposite guide plates (13) and connected to the electric motor (15) at the other end to perform a function of a winch Deceleration device.
KR1020150049110A 2015-04-07 2015-04-07 Cyclo speed reducing apparatus for small sized and high torque transmission KR20160120071A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1020150049110A KR20160120071A (en) 2015-04-07 2015-04-07 Cyclo speed reducing apparatus for small sized and high torque transmission

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1020150049110A KR20160120071A (en) 2015-04-07 2015-04-07 Cyclo speed reducing apparatus for small sized and high torque transmission

Publications (1)

Publication Number Publication Date
KR20160120071A true KR20160120071A (en) 2016-10-17

Family

ID=57250243

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1020150049110A KR20160120071A (en) 2015-04-07 2015-04-07 Cyclo speed reducing apparatus for small sized and high torque transmission

Country Status (1)

Country Link
KR (1) KR20160120071A (en)

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20140053287A (en) 2011-08-11 2014-05-07 몰 벨팅 시스템즈, 인코포레이티드. Cyclo reducer arrangement
KR20140132216A (en) 2013-05-07 2014-11-17 주식회사 만도 In wheel motor system

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20140053287A (en) 2011-08-11 2014-05-07 몰 벨팅 시스템즈, 인코포레이티드. Cyclo reducer arrangement
KR20140132216A (en) 2013-05-07 2014-11-17 주식회사 만도 In wheel motor system

Similar Documents

Publication Publication Date Title
JP5331125B2 (en) Drive device having at least one transmission stage
TWI608689B (en) Combined motor speed reducer
CN108400677B (en) Birotor input planet gear speed reducer
TWI685621B (en) Speed reducing device having power source
WO2012029756A1 (en) Multi-stage reduction gear
WO2018008692A1 (en) Motor unit for wave gear speed reducer
CN1996718A (en) A rotating electrical machine with a transmission and a driving apparatus using the same
WO2018043398A1 (en) Electric motor-equipped wave gear speed reducer
KR20140132216A (en) In wheel motor system
JP2012205441A (en) Motor device with reducer
CN108036034B (en) Bidirectional output type harmonic speed reducer
CN103199650A (en) Three-phase inner rolling type meshing motor
CN103490555B (en) A kind of single eccentric shaft formula engagement motor
JP2013245801A (en) Internal gear reducer utilizing planetary motion
CN203554183U (en) Single eccentric shaft type meshed motor
KR20160120071A (en) Cyclo speed reducing apparatus for small sized and high torque transmission
KR101759171B1 (en) Motor module with transmission
CN103296832B (en) A kind of permanent magnetism translational meshing motor
JP2012016200A (en) Cylindrical motor
TWI636206B (en) Speed ??reducer combined with motor
JP2010223277A (en) Linear actuator
CN210309905U (en) Driving motor assembly for electric vehicle
JP2004046023A (en) Method of driving rotating body by rotary electric machine
CN103532298B (en) Four rotor drive-type engagement motor
CN203261185U (en) Harmonic-wave deceleration apparatus for built-in outwards rotating motor

Legal Events

Date Code Title Description
AMND Amendment
E601 Decision to refuse application
AMND Amendment
X701 Decision to grant (after re-examination)