KR101394183B1 - Reducer for vehicle - Google Patents
Reducer for vehicle Download PDFInfo
- Publication number
- KR101394183B1 KR101394183B1 KR1020120142105A KR20120142105A KR101394183B1 KR 101394183 B1 KR101394183 B1 KR 101394183B1 KR 1020120142105 A KR1020120142105 A KR 1020120142105A KR 20120142105 A KR20120142105 A KR 20120142105A KR 101394183 B1 KR101394183 B1 KR 101394183B1
- Authority
- KR
- South Korea
- Prior art keywords
- coupler
- motor
- magnetic body
- lead screw
- bushing
- Prior art date
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
- F16H25/00—Gearings comprising primarily only cams, cam-followers and screw-and-nut mechanisms
- F16H25/18—Gearings comprising primarily only cams, cam-followers and screw-and-nut mechanisms for conveying or interconverting oscillating or reciprocating motions
- F16H25/20—Screw mechanisms
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K11/00—Structural association of dynamo-electric machines with electric components or with devices for shielding, monitoring or protection
- H02K11/20—Structural association of dynamo-electric machines with electric components or with devices for shielding, monitoring or protection for measuring, monitoring, testing, protecting or switching
- H02K11/21—Devices for sensing speed or position, or actuated thereby
-
- 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
-
- 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
- F16H25/00—Gearings comprising primarily only cams, cam-followers and screw-and-nut mechanisms
- F16H25/18—Gearings comprising primarily only cams, cam-followers and screw-and-nut mechanisms for conveying or interconverting oscillating or reciprocating motions
- F16H25/20—Screw mechanisms
- F16H2025/2062—Arrangements for driving the actuator
- F16H2025/2081—Parallel arrangement of drive motor to screw axis
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Mechanical Engineering (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)
Abstract
Description
The present invention relates to a vehicle speed reducer, and more particularly, to a speed reducer for a vehicle that reduces vibration and noise by compensating a clearance between a motor and a deceleration portion, and increases the rotating performance by matching the axis of the motor and the deceleration portion.
Generally, a vehicle speed reducer is a device that allows a reduction in the number of revolutions of a drive source (e.g., a motor, etc.) to a required number of revolutions to obtain a higher torque. Such a vehicle speed reducer may be installed in a device such as a driving wheel or a steering device to provide a driving force suitable for a device to be driven.
Such a vehicle speed reducer is disclosed in Korean Patent Registration No. 10-1035854 and Korean Patent Laid-open No. 10-2006-0101622.
FIG. 1 is a front view for explaining a conventional vehicular speed reducer, and FIG. 2 is a sectional view for explaining a conventional vehicular speed reducer of FIG.
1 and 2, a conventional
The
The
The
In such a conventional vehicle speed reducer 100, if the torque is excessively applied to the
SUMMARY OF THE INVENTION It is an object of the present invention to provide a vehicle speed reducer capable of precisely controlling the position of a coupler so that an excessive torque load is not applied to the coupler.
It is another object of the present invention to provide a vehicle speed reducer capable of reducing vibration and noise by improving the rotation performance by matching the axis of rotation of the motor and the axis of the lead screw of the deceleration section.
It is another object of the present invention to provide a vehicle speed reducer including a coupler that can reduce vibration and noise by compensating for a rotation error of a rotation shaft of a motor and a lead screw of a deceleration portion, thereby increasing durability.
According to another aspect of the present invention, there is provided a motor including a motor for generating a rotational force, a coupler having a rotation axis of the motor inserted at one end thereof and a first magnetic body at the other end thereof, It is preferable that the first magnetic body and the second magnetic body are disposed so that different poles face each other and compensate for the deviation of the axis of the motor and the deceleration portion due to the magnetic force of each other.
The coupler includes an upper bushing having the rotation shaft of the motor inserted therein and rotating together, an upper coupler formed to surround the upper bushing and rotating together, a lower coupler connected to the lower end of the upper coupler to rotate together, And a sleeve disposed between the upper bushing and the lower bushing for transmitting the rotation of the upper coupler to the lower coupler.
Preferably, the lower magnetic coupler is disposed at a lower end of the lower coupler so as to be spaced apart from the decelerator.
The lower portion of the coupler may be spaced apart from the upper end of the decelerator through an engagement of the lower bushing.
The deceleration unit includes a top plate on which the second magnetic material is disposed, a lead screw inserted into the coupler through the top plate, and a slider which is formed to surround the lead screw and is moved up and down by rotation of the lead screw. .
Preferably, the deceleration unit receives the rotational force generated in the motor by the lead screw, and increases the output through movement of the slider.
It is preferable that the upper bushing includes the third magnetic body arranged at the outer upper end and rotating together.
It is preferable that the third magnetic body is formed in a ring shape and a plurality of magnetic poles are arranged such that the N pole and the S pole are divided at regular intervals along the outer peripheral surface.
Preferably, the position sensor further includes a position sensor fixed at a position spaced apart from one end of the coupler, and the position sensor senses rotation of the third magnetic body.
According to the present invention, the position of the coupler can be precisely controlled so that an excessive torque load is not applied to the coupler by disposing a magnetic body and a position sensor in the coupler and detecting a change in position due to rotation.
According to the present invention, the coupler is controlled through the position sensor so that the axis of rotation of the motor and the axis of the lead screw of the deceleration section coincide with each other, thereby reducing vibration and noise, and improving rotational performance.
According to the present invention, when a magnetic body is provided in a coupler and a magnetic body facing the magnetic body of the coupler is disposed in the deceleration portion, the vibration of the lead screw of the deceleration portion is compensated when the axis of the motor is rotated, There is an effect that can be increased.
1 is a front view for explaining a conventional vehicular speed reducer;
2 is a sectional view for explaining a conventional vehicular speed reducer of FIG. 1;
3 is a perspective view illustrating a vehicle speed reducer according to an embodiment of the present invention.
4 is an exploded view for explaining a vehicle speed reducer of Fig. 3;
5 is a sectional view for explaining a vehicle speed reducer of FIG. 3;
6 is an enlarged view for explaining a coupler connection structure of the vehicular speed reducer of FIG. 3;
DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings. In this process, the thicknesses of the lines and the sizes of the components shown in the drawings may be exaggerated for clarity and convenience of explanation. In addition, the terms described below are terms defined in consideration of the functions of the present invention, which may vary depending on the intention or custom of the user, the operator. Therefore, definitions of these terms should be made based on the contents throughout this specification.
FIG. 3 is a perspective view illustrating a vehicle speed reducer according to an embodiment of the present invention, FIG. 4 is an exploded view illustrating the vehicle speed reducer of FIG. 3, and FIG. 5 is a cross-sectional view illustrating the vehicle speed reducer of FIG.
3 to 5, a vehicle speed reducer 300 according to an embodiment of the present invention includes a
The
The
The rotation shaft of the
The
The decelerating
The
The
The second
The
The
A
The
The connection structure of the motor, the coupler, and the decelerator will be described in more detail with reference to FIG.
Fig. 6 is an enlarged view for explaining the coupler connection structure of the vehicular speed reducer of Fig. 3;
Referring to FIG. 6, the rotary shaft of the
The
That is, the
The third
The
The
The operation of the
The
The
While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is to be understood that the invention is not limited to the disclosed embodiments, but, on the contrary, It is understandable. Accordingly, the true scope of the present invention should be determined by the following claims.
300: Reducer for vehicle 310: Motor
320: coupler 321: upper coupler
322: lower coupler 323: upper bushing
324: Lower bushing 325: Third magnetic body
326: first magnetic body 327: position sensor
328: Sleeve 330:
331: upper plate 332: second magnetic body
333: lead screw 334: slider
335: guide shaft 336: lower plate
Claims (9)
A coupler having a rotation axis of the motor inserted at one end and a first magnetic body at the other end; And
And a deceleration part connected to the other end of the coupler and having a second magnetic body disposed thereon, wherein the first magnetic body and the second magnetic body are arranged with mutually opposite poles, and the motor and the deceleration To compensate for the deviation of the axis of the wealth,
Wherein the coupler includes an upper bushing in which a rotary shaft of the motor is inserted and rotated together,
An upper coupler formed to surround the upper bushing and rotated together,
A lower coupler connected to the lower end of the upper coupler and rotating together,
A lower bushing disposed inside the lower coupler and into which the deceleration portion is inserted,
And a sleeve disposed between the upper bushing and the lower bushing to transmit rotation of the upper coupler to the lower coupler,
And the lower magnetic coupler is disposed at a lower end thereof so that the first magnetic body is spaced apart from the decelerator.
The deceleration section
And the lower bushing is engaged with the lower bushing so that the lower end of the coupler and the upper end of the reduction portion are spaced apart from each other through the engagement of the lower bushing.
The deceleration section
A lead screw inserted into the coupler through the upper plate, and a slider formed to surround the lead screw and moved up and down by rotation of the lead screw. .
The deceleration section
Wherein a rotational force generated in the motor is transmitted to the lead screw, and the output is increased through movement of the slider.
The upper bushing
And the third magnetic body is disposed on the outer upper end and rotates together.
The third magnetic body
And a plurality of magnetic poles are arranged such that the N pole and the S pole are divided at regular intervals along the outer circumferential surface.
Further comprising a position sensor fixed at a position spaced apart from one end of the coupler, wherein the position sensor senses rotation of the third magnetic body.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1020120142105A KR101394183B1 (en) | 2012-12-07 | 2012-12-07 | Reducer for vehicle |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1020120142105A KR101394183B1 (en) | 2012-12-07 | 2012-12-07 | Reducer for vehicle |
Publications (1)
Publication Number | Publication Date |
---|---|
KR101394183B1 true KR101394183B1 (en) | 2014-05-30 |
Family
ID=50893870
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
KR1020120142105A KR101394183B1 (en) | 2012-12-07 | 2012-12-07 | Reducer for vehicle |
Country Status (1)
Country | Link |
---|---|
KR (1) | KR101394183B1 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2021502525A (en) * | 2017-11-12 | 2021-01-28 | リナック エー/エス | Linear actuator |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH09254046A (en) * | 1996-03-26 | 1997-09-30 | Matsushita Electric Works Ltd | Electric driver |
US20030200828A1 (en) | 2002-04-30 | 2003-10-30 | Eastman Kodak Company | Rotational stop |
JP2009106125A (en) * | 2007-10-25 | 2009-05-14 | Honda Motor Co Ltd | Motor rotation angle detection device |
JP2012167747A (en) | 2011-02-15 | 2012-09-06 | Canon Precision Inc | Motor device with magnet clutch and equipment with the same |
-
2012
- 2012-12-07 KR KR1020120142105A patent/KR101394183B1/en not_active IP Right Cessation
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH09254046A (en) * | 1996-03-26 | 1997-09-30 | Matsushita Electric Works Ltd | Electric driver |
US20030200828A1 (en) | 2002-04-30 | 2003-10-30 | Eastman Kodak Company | Rotational stop |
JP2009106125A (en) * | 2007-10-25 | 2009-05-14 | Honda Motor Co Ltd | Motor rotation angle detection device |
JP2012167747A (en) | 2011-02-15 | 2012-09-06 | Canon Precision Inc | Motor device with magnet clutch and equipment with the same |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2021502525A (en) * | 2017-11-12 | 2021-01-28 | リナック エー/エス | Linear actuator |
JP7269233B2 (en) | 2017-11-12 | 2023-05-08 | リナック エー/エス | linear actuator |
US11821496B2 (en) | 2017-11-12 | 2023-11-21 | Linak A/S | Linear actuator |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US7278334B2 (en) | Electric power steering apparatus | |
KR101400488B1 (en) | Reducer and electric power steering apparatus having the same | |
KR101682900B1 (en) | Reliability test equipment of pulley for vehicle | |
JP2011069495A (en) | Worm speed reducer and electric power steering device | |
KR101615230B1 (en) | Structure of worm shaft for electric power steering system | |
CN1053152C (en) | Electrically powered steering mechanism | |
KR101394183B1 (en) | Reducer for vehicle | |
JP2004291740A (en) | Steering device | |
JP6315105B2 (en) | Worm reducer and electric assist device | |
KR101688181B1 (en) | Reliability test system of pulley for vehicle with operation panel | |
US20190106146A1 (en) | Worm wheel of electric power steering apparatus | |
EP1669274A1 (en) | Speed reduction gear of electric power steering device | |
KR20130071257A (en) | Noise reduction type motor driven power steering | |
JP2005069470A (en) | Power transmission mechanism, electric power steering device incorporating it, and manufacturing method for elastic toothed ring | |
JP2005067371A (en) | Electric power steering device | |
KR101559614B1 (en) | Rack Assist Type Electric Power Steering Apparatus | |
KR20140036816A (en) | Active front steering | |
KR20130052452A (en) | Noise reduction type motor driven power steering | |
CN113574294B (en) | Friction roller speed reducer | |
KR20190035045A (en) | Rear wheel steering apparatus | |
KR102157807B1 (en) | Motor driven power steering system | |
JP4235894B2 (en) | Electric power steering device | |
JP2003042266A (en) | Worm, reduction gear mechanism and electric power steering system | |
KR101969284B1 (en) | Noise reduction type motor driven power steering | |
KR20180024174A (en) | Axle device for vehicle |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
A201 | Request for examination | ||
E902 | Notification of reason for refusal | ||
E701 | Decision to grant or registration of patent right | ||
GRNT | Written decision to grant | ||
LAPS | Lapse due to unpaid annual fee |