KR101767047B1 - apparatus for controling cam pin of continuously variable transmission using lever crank mechanism - Google Patents

apparatus for controling cam pin of continuously variable transmission using lever crank mechanism Download PDF

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Publication number
KR101767047B1
KR101767047B1 KR1020160006992A KR20160006992A KR101767047B1 KR 101767047 B1 KR101767047 B1 KR 101767047B1 KR 1020160006992 A KR1020160006992 A KR 1020160006992A KR 20160006992 A KR20160006992 A KR 20160006992A KR 101767047 B1 KR101767047 B1 KR 101767047B1
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KR
South Korea
Prior art keywords
male
cam pin
housing
cam
bore
Prior art date
Application number
KR1020160006992A
Other languages
Korean (ko)
Other versions
KR20170087255A (en
Inventor
신용철
Original Assignee
이스트바이크 주식회사
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 이스트바이크 주식회사 filed Critical 이스트바이크 주식회사
Priority to KR1020160006992A priority Critical patent/KR101767047B1/en
Priority to PCT/KR2016/002691 priority patent/WO2017126739A1/en
Priority to CN201610160632.3A priority patent/CN106989167A/en
Publication of KR20170087255A publication Critical patent/KR20170087255A/en
Application granted granted Critical
Publication of KR101767047B1 publication Critical patent/KR101767047B1/en

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    • 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
    • F16H21/00—Gearings comprising primarily only links or levers, with or without slides
    • 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
    • F16H21/00—Gearings comprising primarily only links or levers, with or without slides
    • F16H21/10—Gearings comprising primarily only links or levers, with or without slides all movement being in, or parallel to, a single plane
    • F16H21/16—Gearings comprising primarily only links or levers, with or without slides all movement being in, or parallel to, a single plane for interconverting rotary motion and reciprocating motion
    • F16H21/18—Crank gearings; Eccentric gearings
    • 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
    • F16H21/00—Gearings comprising primarily only links or levers, with or without slides
    • F16H21/10—Gearings comprising primarily only links or levers, with or without slides all movement being in, or parallel to, a single plane
    • F16H21/16—Gearings comprising primarily only links or levers, with or without slides all movement being in, or parallel to, a single plane for interconverting rotary motion and reciprocating motion
    • F16H21/18—Crank gearings; Eccentric gearings
    • F16H21/22—Crank gearings; Eccentric gearings with one connecting-rod and one guided slide to each crank or eccentric
    • F16H21/28—Crank gearings; Eccentric gearings with one connecting-rod and one guided slide to each crank or eccentric with cams or additional guides
    • 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
    • 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
    • F16H25/2018—Screw mechanisms with both screw and nut being driven, i.e. screw and nut are both rotating

Abstract

The present invention relates to a cam pin control device which utilizes the operation principle between a bolt extending in a radial direction of a cam pin and a nut fastened to the cam pin in a radial direction of the cam pin, which is horizontally arranged in the continuously variable transmission.

Description

[0001] The present invention relates to an apparatus for controlling a cam pin of a continuously variable transmission using a lever crank mechanism,

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a continuously variable transmission using a lever crank mechanism, and more particularly, to a device for controlling a position of a cam pin provided for varying a speed in a continuously variable transmission using a lever crank mechanism.

Generally, a speed reducer is classified into a constant speed reducer that outputs power at a constant reduction ratio by combining gears having different sizes, and a continuously variable transmission that can vary the reduction ratio by applying a conical type reduction device.

The rotational force generated from a power generating device such as a motor or an engine is output at a high rotational speed, but the torque (torque) is small. Therefore, in most industrial machines, the torque is increased by using a decelerating device.

Here, the speed reducer increases the torque instead of decelerating the rotational speed transmitted from the power generator.

However, when the load applied to the output shaft is larger than the output torque of the output shaft, the load is reduced by the motor or the engine The life of the motor or the engine is shortened.

Further, a load larger than the output torque of the output shaft acts in a reverse direction to the motor or the engine, so that the target output can not be supplied to the output shaft.

A number of patent applications of the continuously variable transmission for solving such problems have been disclosed by the present inventor.

The continuously variable transmission devices disclosed by the above patent applications include a lever crank mechanism provided between an input shaft that is rotated in one direction by an external force (such as a motor or an engine) and an output shaft that receives the driving force of the input shaft, .

This lever crank mechanism is a known mechanism for causing the one-way rotational motion of the input shaft to cause the output shaft to reciprocate within a certain angle range.

The lever crank mechanism is provided with a cam pin elastically pressurized by a spring on the input link, and the cam pin is varied in the radial direction of rotation of the input link in accordance with the load of the output section to adjust the reciprocating angle of the output shaft, .

However, the method of varying the position of the cam pin by using the spring has the problem that the position of the cam pin is automatically changed according to the load of the output shaft, so that the user can not arbitrarily control the position of the cam pin.

In order to solve such a problem, there is a method of varying the position of the cam pin by connecting the cam pin formed on the input link to a pneumatic / hydraulic pressure source. Such a method is disclosed in Korean Patent Laid- 2010-0124561.

However, when the link mechanism is a hub type, the above-mentioned method has a problem that if the pneumatic / hydraulic means is incorporated in the hub case, the hub case becomes large and can not be applied to the hubs of various drive wheels. Moreover, the structure of the continuously variable transmission becomes complicated There is a problem that the manufacturing cost is increased.

A solution for solving such a problem is disclosed in Korean Patent Registration No. 10-1389280 filed by the inventor of the present invention.

In the above-described method, a tapered surface incorporating a ball is formed in the cam pin, and the ball is constrained by a rod parallel to the output shaft and the input shaft in a state of pressing the ball in a radial direction by a spring, A control method for determining the position of the cam pin. Therefore, there is a problem that a large load is generated at the time of controlling the position of the cam pin due to the frictional load between the ball and the tapered surface, and the output shaft, the input shaft, There arises a problem that the volume is increased in the axial direction, and that there arises interference between the power transmission elements, and additional components are required due to the space restriction for connection between the power transmission axes, so that the manufacturing cost and maintenance are increased Lt; / RTI >

The present invention has a problem in solving the above-mentioned problems.

The present invention can solve the above-mentioned problem by implementing the function of moving the horizontally arranged cam pin in the radial direction of the cam pin by using the operating principle between the bolt extending in the radial direction of the cam pin and the nut fastened thereto.

The present invention has been made in view of the above problems, and it is an object of the present invention to provide a method of automatically changing the position of a cam pin by a spring in accordance with a load of an output shaft irrespective of friction, It is possible to provide a cam pin control device for a continuously variable transmission that allows the user to freely control the position of the cam pin arbitrarily.

1 is a perspective view illustrating a continuously variable transmission to which a cam pin control device according to an embodiment of the present invention is applied,
Fig. 2 is a front view of only the cam pin control device of Fig. 1,
3 is a perspective view showing the cam pin control device of Fig. 2, and Fig.
Fig. 4 is a plan view showing a male cam housing and a female housing of the cam pin control device of Fig. 2 in an exploded state, and Fig.
Fig. 5 is a bottom view showing the male cam housing and the female housing of the cam pin control device of Fig. 2 in an exploded state; Fig.

Hereinafter, a cam pin control device of an embodiment according to the present invention will be described in detail with reference to Figs.

1, a continuously variable transmission to which a cam pin control device 100 according to the present embodiment is applied is indicated by reference numeral 10.

The continuously variable transmission (10) is interposed between an output shaft (1) disposed on one side and an input shaft (2) disposed on the other side.

The input gear 3 is fixedly connected to the input shaft 2 and the input gear 3 is engaged with the housing gear 5 fixed to the housing 4 provided in the continuously variable transmission 10, As shown in Fig.

Since the continuously variable transmission 10 is of the same type as that of the idle type continuously variable transmission disclosed in Patent Registration No. 10-1354154 patented and patented by the present inventor, the detailed structure can be found in detail with reference to the above registration publication, Since the invention relates to a device for controlling the position of the cam pin of the continuously variable transmission, a further detailed description of the continuously variable transmission will be omitted below.

As shown in Figs. 2 and 3, the cam pin control device 100 includes a cam pin 101 connected to one side of a cam pin 101 of a circular cross section linked to a coupler link and an unillustrated input link provided in the continuously variable transmission 10 The male cam housing 110 is integrally coupled to the male cam housing 101 and the male cam housing 110. The male cam housing 110 is mounted on the male housing 110 so as to be movable in the radial direction of the cam pin 101, A nut 130 rotatably disposed between the male cam housing 110 and the female housing 120 so as to be movable in a radial direction of the cam pin 101 and a nut 130 rotatable between the male cam housing 110 and the female housing 120, A bolt 140 which is rotatably passed through the female housing 120 and is fastened to the nut 130 and a bolt 140 which is interposed between the nut 130 and the male cam housing 110, A spring 150 rotatably passed through the bolt 140, And a motor 160 for rotating the bolt 140 in the forward and reverse directions.

2 to 5, the male cam housing 110 includes a large diameter portion 111 formed on one side of the cam pin 101 and extending in a radially outward direction and integrally formed at one side of the large diameter portion 111, A male body 112 having a D-shaped cross section and extending upward in a direction of one side of the enlarged diameter portion 111 at an upper portion of the large diameter portion 111, a bore 113 having a bottom and a tip open at the bottom of the tip portion of the male body 112, A through hole 114 formed in the center of the ceiling of the bore 113 so as to allow the bolt 140 to be rotatably passed through the through hole 114 and a through hole 114 formed in a radial direction of the cam pin 101 at both sides of the proximal end of the male body 112 A pair of female rails 115 and 115 and a pair of male rails 116 and 116 that are chamfered in the radial direction of the cam pin 101 on both outer surfaces of the male body 112 defining the bore 113, 116).

2 to 5, one side of the female housing 120 is closed and the other side and the ceiling of the female housing 120 are opened so that the male body 112 of the male cam housing 110 rotates in the radial direction of the cam pin 101 And a bore 121 having a size and shape that can be inserted into the bore 121 so that the bolt 140 is rotatably passed through the center of the bottom of the bore 121 A pair of male rails 126 and 126 formed such that the pair of male rails 116 and 116 are slidably inserted into the through hole 124 and the opposite ends of the opposite side walls of the bore 121, And a pair of male rails 125 and 125 formed such that the pair of female rails 115 and 115 are slidably inserted into base ends of opposite side walls of the bore 121.

A space S defined by the bore 113 of the male cam housing 110 and the bore 121 of the female housing 120 facing the bore 113 is formed in the bolt 140 The nut 130 is formed in a non-rotatable shape so that the nut 130 can be moved in the radial direction of the cam pin 101 and the space S is formed by the nut 130 and the male A spring 150 is built in between the bores 113 of the housing 110.

 A worm and a worm wheel (not shown) are interposed between a driving shaft (not shown) of the motor 160 and an upper end of the bolt 140. When the motor 160 is rotated in the forward direction, the bolt 140 rotates in the fastening direction The nut 130 is moved upward and the bolt 140 is rotated in the unlocking direction when the motor 160 is rotated in the reverse direction so that the nut 130 is moved downward.

The cam pin control device 100 configured as described above is configured such that the cam pin 101 elastically pressurized by the spring 150 is automatically changed in accordance with the load of the output shaft 1 to be automatically transmitted to the continuously variable transmission 10 When the user arbitrarily sets the speed change value of the continuously variable transmission 10, the motor 160 is driven in the forward or reverse direction so that the bolt 140 is rotated in the fastening direction The nut 130 is moved in the radial direction of the cam pin 101 so that the nut 130 moves toward the motor 160. When the nut 130 moves toward the motor 160, The cam pin 101 integrally coupled to the male cam housing 110 is moved toward the motor 160 by resiliently pressing the male cam housing 110 via the spring 150 so as to be connected to the continuously variable transmission 10 The speed of the output shaft 1 is increased The spring 150 is moved to the opposite side of the motor 160 and the cam 160 is coupled to the male cam housing 110 integrally with the male cam housing 110. When the nut 130 is moved to the opposite side of the motor 160, (101) is moved to the side opposite to the motor (160) to decelerate the speed of the output shaft (1) of the continuously variable transmission (10).

 Therefore, the cam pin control apparatus 100 can automatically control the position of the cam pin 101 according to the load of the output shaft irrespective of the friction, without increasing the complexity in the direction of the rotation axis of the CVT 10 and the structure thereof, It is possible to vary the position of the cam pin by the cam mechanism 150 and to freely control the position of the cam pin arbitrarily by the user.

Although the spring 150 is described as being interposed between the nut 130 and the male cam housing 110 in the above embodiment, the present invention is not limited to this, and the spring 150 may be omitted . This is because the cam pin 101 is linked to the input link and the plurality of coupler links as described in the continuously variable transmission of patent type 10-1354154, which is patented and patented by the inventor of the present invention, Since the movement in the outward radial direction is limited by the plurality of coupler links and the output shaft.

Although the motor 160 is described as rotating the bolt 140 in the forward and reverse directions in the above embodiment, the present invention is not limited to this, and the motor 160 may include a cylinder Or by other means.

The present invention relates to a camshaft control device for controlling a camshaft of a camshaft and a camshaft of a camshaft,

Claims (5)

An apparatus for controlling a cam pin linked to an input link and a coupler link provided in a continuously variable transmission using a lever crank mechanism,
A male cam housing 110 integrally coupled to one side of the cam pin 101,
The male cam housing 110 includes a female housing 120 which is mounted on the male cam housing 110 so as to be movable in the radial direction of the cam pin 101 and fixed to the housing body 170,
A nut 130 interposed between the male cam housing 110 and the female housing 120 in such a manner as to be non-rotatable and movable in the radial direction of the cam pin 101,
A bolt 140 rotatably passed through the male cam housing 110 and the female housing 120 and fastened to the nut 130,
And means for rotating the bolt (140) in the forward and reverse directions by being connected to the bolt (140)
The male cam housing (110)
A large diameter portion 111 extending in a radially outward direction and integrally formed on one side of the cam pin 101,
A male body 112 integrally extending from one side of the enlarged diameter portion 111 to one side of the enlarged diameter portion 111 and having an upwardly convex D-shaped cross section,
A bore 113 having a bottom and a tip open at the bottom of the tip of the male body 112,
A through hole 114 formed at the center of the ceiling of the bore 113 to allow the bolt 140 to rotate therethrough,
A pair of female rails 115 and 115 chamfered in the radial direction of the cam pin 101 at both sides of the proximal end of the male body 112,
And a pair of male-type rails 116, 116 chamfered in the radial direction of the cam pin 101 on both outer surfaces of the male-type body 112 forming the bore 113,
The female housing (120)
A bore 121 having a size and shape capable of being inserted in a radial direction of the cam pin 101 can be inserted into the male body 112 of the male cam housing 110, A cylindrical female body 122,
A through hole 124 formed at the bottom center of the bore 121 so as to allow the bolt 140 to rotate therethrough,
A pair of female rails 126 and 126 formed such that the pair of male rails 116 and 116 are slidably inserted into the opposite ends of the opposite side walls of the bore 121,
And a pair of male rails (125, 125) formed such that the pair of female rails (115, 115) are slidably inserted into base ends of opposite side walls of the bore (121) Device for controlling the cam pin of a continuously variable transmission using a mechanism. The method according to claim 1,
Further comprising a spring (150) interposed between the nut (130) and the male cam housing (110) and having the bolt (140) rotatably penetrated therethrough. Apparatus for controlling the cam pin. delete The method according to claim 1,
A space S defined by the bore 113 of the male cam housing 110 and the bore 121 of the female housing 120 facing the bore 113 is formed in the bolt 140 Wherein the nut (130) fastened to the cam pin (101) is non-rotatably shaped so that the nut (130) is movably incorporated in the radial direction of the cam pin (101) Device. 5. The method of claim 4,
Wherein the space S includes a spring 150 between the nut 130 and the bore 113 of the male cam housing 110 to control the cam pin of the continuously variable transmission using the lever crank mechanism. Device.
KR1020160006992A 2016-01-20 2016-01-20 apparatus for controling cam pin of continuously variable transmission using lever crank mechanism KR101767047B1 (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
KR1020160006992A KR101767047B1 (en) 2016-01-20 2016-01-20 apparatus for controling cam pin of continuously variable transmission using lever crank mechanism
PCT/KR2016/002691 WO2017126739A1 (en) 2016-01-20 2016-03-17 Apparatus for controlling cam pin of continuously variable transmission using lever crank mechanism
CN201610160632.3A CN106989167A (en) 2016-01-20 2016-03-21 Utilize the cam pin control device of the buncher of lever crank mechanism

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1020160006992A KR101767047B1 (en) 2016-01-20 2016-01-20 apparatus for controling cam pin of continuously variable transmission using lever crank mechanism

Publications (2)

Publication Number Publication Date
KR20170087255A KR20170087255A (en) 2017-07-28
KR101767047B1 true KR101767047B1 (en) 2017-08-10

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KR1020160006992A KR101767047B1 (en) 2016-01-20 2016-01-20 apparatus for controling cam pin of continuously variable transmission using lever crank mechanism

Country Status (3)

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KR (1) KR101767047B1 (en)
CN (1) CN106989167A (en)
WO (1) WO2017126739A1 (en)

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115359709B (en) * 2022-08-12 2024-01-26 洛阳理工学院 Cam transmission mechanism motion detection system

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4361169B2 (en) * 1999-06-23 2009-11-11 Ｔｈｋ株式会社 Sliding guide unit
JP2003194174A (en) * 2001-10-29 2003-07-09 Nsk Ltd Ball screw for automobile
JP2004263857A (en) * 2003-02-10 2004-09-24 Ntn Corp Traction drive type continuously variable transmission
CN2672375Y (en) * 2003-12-25 2005-01-19 胡济荣 Automatic stepless speed variator
JP4515801B2 (en) * 2004-03-31 2010-08-04 ケーエスエス株式会社 Electric linear actuator
KR101101366B1 (en) * 2009-05-19 2012-01-02 신현우 Apparatus for Setting Range and Velocity of Variable Speed in Continuously Variable Transmission
JP5431443B2 (en) * 2011-12-15 2014-03-05 株式会社エクセディ Clutch actuator

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Publication number Publication date
WO2017126739A1 (en) 2017-07-27
KR20170087255A (en) 2017-07-28
CN106989167A (en) 2017-07-28

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