CN1991194A - Centrifugal clutch - Google Patents
Centrifugal clutch Download PDFInfo
- Publication number
- CN1991194A CN1991194A CN200610172466.5A CN200610172466A CN1991194A CN 1991194 A CN1991194 A CN 1991194A CN 200610172466 A CN200610172466 A CN 200610172466A CN 1991194 A CN1991194 A CN 1991194A
- Authority
- CN
- China
- Prior art keywords
- centrifugal
- aforementioned
- side plate
- clutch
- rest pin
- Prior art date
- Legal status (The legal status 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 status listed.)
- Pending
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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
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D43/00—Automatic clutches
- F16D43/02—Automatic clutches actuated entirely mechanically
- F16D43/04—Automatic clutches actuated entirely mechanically controlled by angular speed
- F16D43/14—Automatic clutches actuated entirely mechanically controlled by angular speed with centrifugal masses actuating the clutching members directly in a direction which has at least a radial component; with centrifugal masses themselves being the clutching members
- F16D43/18—Automatic clutches actuated entirely mechanically controlled by angular speed with centrifugal masses actuating the clutching members directly in a direction which has at least a radial component; with centrifugal masses themselves being the clutching members with friction clutching members
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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
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D43/00—Automatic clutches
- F16D43/02—Automatic clutches actuated entirely mechanically
- F16D43/04—Automatic clutches actuated entirely mechanically controlled by angular speed
- F16D43/14—Automatic clutches actuated entirely mechanically controlled by angular speed with centrifugal masses actuating the clutching members directly in a direction which has at least a radial component; with centrifugal masses themselves being the clutching members
- F16D2043/145—Automatic clutches actuated entirely mechanically controlled by angular speed with centrifugal masses actuating the clutching members directly in a direction which has at least a radial component; with centrifugal masses themselves being the clutching members the centrifugal masses being pivoting
Abstract
The object of the invention is to minimize the number of the centrifugal hammers of the belt-type continuously variable centrifugal clutch used for automatic two-wheel vehicle and so on. The centrifugal clutch of the invention is equipped with no more than three centrifugal hammers 5 which are installed at the peripheral portion of a substantially round clutch plate 2 by support pins 3 thereby being able to freely swing and which transfers the rotation to a clutch housing 1; and a side plate 6 which forms through holes 6a for being completely inserted by the terminal part of the support pins 3 and which is set above the centrifugal hammers 5 in the manner of covering the centrifugal hammers 5. The terminal part of the support pins 3 insert through the through holes 6a of the side plate 6 to be fixed.
Description
Technical field
The present invention relates to a kind ofly in the variable v-belt drive of automatic two-wheeled cycle etc., the number of centrifugal hammer to be restricted to minimal centrifugal clutch.
Background technique
In stepless speed variator, there is following stepless speed variator, it is respectively arranged with on live axle and driven shaft by fixed pulley half and the drive pulley that can constitute with respect to the movable pulley half that these fixed pulley half advance and retreat move, volume hangs with the annular V-shaped band between the drive pulley on live axle and the driven shaft, by move adjusting the movable pulley half on live axle and the driven shaft, and the rotation of the rotation of live axle and driven shaft is carried out stepless change and is delivered on the driven shaft.In this speed changer, aforementioned driven pulley and driven shaft generally link via centrifugal clutch.
The rotating speed of aforementioned driven pulley reaches set value when above, in the aforementioned centrifugal clutch, swing the centrifugal hammer on each rest pin that the earth's axis freely is bearing in its clutch plate, with aforementioned rest pin be rotating center to the swing of radial direction outer circumferential side, its free end side expands out laterally.Thus, the lining that is bonded on the centrifugal hammer contacts, links with the inner peripheral surface of the ring-type side of clutch outer member, and rotation is passed on the driven axle that is fixed together with clutch outer member.And the quantity of the centrifugal hammer that uses in this centrifugal clutch is generally more than 3 as disclosed in the patent documentation 1.
[patent documentation 1] spy opens 2002-39227
For the aforementioned centrifugal hammer of above-mentioned centrifugal clutch, the number that why will be connected the centrifugal hammer of the centrifugal clutch on the slave end belt wheel is set as more than three, is for following reason.That is, the number of centrifugal hammer is under 2 the situation in this centrifugal clutch, and on average the weight of each centrifugal hammer also becomes heavy, can produce bigger vibration.In general, the centrifugal hammer c of centrifugal clutch is mounted and fixed on the fulcrum b last (with reference to Fig. 8) of clutch main body a in the mode that can change by stop ring (circlip) d.
In addition, centrifugal hammer via side plate by being fixed, so, because the existence in this gap, rock and produce at the support of this centrifugal hammer sometimes at centrifugal hammer be installed between the side plate on the fulcrum and produce the gap with stop ring.When centrifugal clutch moved, this rocked and might make average each the bigger centrifugal hammer of weight become swing state.And then, with respect to the clutch housing that is configured in the centrifugal hammer periphery, aforementioned two centrifugal hammers are while swinging butt, so its bearing surface is inhomogeneous, its butt position can produce stronger strain, difference in the position of butt and the power (weight) that do not act on the position of butt is bigger, thereby becomes unbalanced state, becomes the big vibration source that rises.
Owing to this reason, if the number of centrifugal hammer is made as 2, can produce variety of issue, very inconvenience.Therefore, be set at usually more than 3.If the number of centrifugal hammer is made as more than 3, then can alleviate the weight of average each centrifugal hammer, the power that acts on the clutch housing also is distributed to three positions from two positions, can alleviate strain, and alleviates the vibration that causes thus, good on function, but the situation that is made as 2 with number with centrifugal hammer is compared, and has mechanism's complexity, adjust also difficulty, the problem that cost increases.
Summary of the invention
Problem to be solved by this invention (technical problem or purpose) is, in the centrifugal hammer below 3, will arrive inferior limit owing to the vibration suppression that the external force that acts on average each centrifugal hammer produces, and make its structure very simple.
Given this, the inventor has carried out with keen determination research in order to address the above problem, the result, and the invention of technological scheme 1 is by providing a kind of following centrifugal clutch, and solved the problems referred to above.This centrifugal clutch, via the rest pin swing centrifugal hammer below three is installed freely at the periphery position of the clutch plate of circular plate shape roughly, this centrifugal hammer passes to clutch outer member with rotation, wherein, possess side plate, described side plate is formed with the distal portion of aforementioned rest pin and inserts logical through hole, and aforementioned side plate is configured on the aforementioned centrifugal hammer in the mode that covers aforementioned centrifugal hammer, and the end of aforementioned rest pin is inserted the through hole of logical side plate and is fixed.
Secondly, the invention of technological scheme 2 is by providing a kind of following centrifugal clutch, and the problems referred to above have been solved, described centrifugal clutch, in aforementioned schemes, the end of the rest pin of the through hole of slotting logical aforementioned side plate is out of shape by riveted joint and is fixed on the aforementioned side plate.The invention of technological scheme 3 by a kind of following centrifugal clutch is provided, and has solved the problems referred to above, described centrifugal clutch, and in aforementioned schemes, the rest pin of inserting the through hole of logical aforementioned side plate is fixed on by being pressed on the aforementioned side plate.The invention of technological scheme 4 by a kind of following centrifugal clutch is provided, and has solved the problems referred to above, described centrifugal clutch, and in aforementioned schemes, the rest pin of inserting the through hole of logical aforementioned side plate is fixed on the aforementioned side plate by being pressed into and riveting distortion.The invention of technological scheme 5 by a kind of following centrifugal clutch is provided, and has solved the problems referred to above, described centrifugal clutch, and in aforementioned schemes, aforementioned centrifugal hammer is two.
At first, invention according to technological scheme 1, periphery position at the clutch plate of circular plate shape roughly is equipped with three following centrifugal hammers freely via the rest pin swing, and the side plate that is formed with the through hole that the terminal part of aforementioned rest pin connects is configured on the aforementioned centrifugal hammer in the mode that covers aforementioned centrifugal hammer.
In addition, because the end of aforementioned rest pin inserts the through hole of logical side plate and is fixed, thus axial one distolateral being fixed on the clutch plate of aforementioned rest pin, another distolateral being fixed on the side plate.And the rest pin of three following centrifugal hammers of supporting is by the supporting of same clutch plate and side plate, and the state that is fixed together for rest pin and side plate is so all rest pins all are the states that axial two ends are roughly supported.
Thereby, even on centrifugal hammer effect violent external force and produce vibration, the rest pin that supports this centrifugal hammer neither the cantilever support state, but the two supports state, so, the vibration of enough bearing this centrifugal hammer, and, can play the effect of the vibration that will produce on the inhibition centrifugal hammer.
According to the invention of technological scheme 2, the end of the rest pin of the through hole of slotting logical aforementioned side plate is out of shape by riveted joint and is fixed on the aforementioned side plate, thereby its stationary state is very firm, and then can realize durability and long lifetime.Secondly, according to the invention of technological scheme 3, the rest pin of inserting the through hole of logical aforementioned side plate is fixed on by being pressed on the aforementioned side plate, thereby should fixing can be undertaken by the simplest pressurization operation.Secondly, according to the invention of technological scheme 4, insert on the end of rest pin of through hole of logical aforementioned side plate, except by being pressed into the retention force that obtains, also effect has the retention force that riveted joint distortion obtains, end that can supported pin and the state that aforementioned side plate firmly fixes more.
Secondly, in the invention of technological scheme 5, centrifugal hammer is made as two, thereby the centrifugal hammer number of centrifugal clutch can be suppressed to minimum number, and, can be set as the very simple structure of only using a side plate, and then can provide centrifugal clutch with low price.And then, be set at 2 by number with centrifugal hammer, number on the automated variable type driving side belt wheel (master end belt wheel) that the belt wheel groove width can be changed corresponding to rotating speed, that can change the Centrifugal rolling of belt wheel groove width is made as 3, thus, the number that can realize Centrifugal rolling is non-integral minimum combination with the ratio of the number of centrifugal hammer, can also suppress the vibration of this automatic transmission integral body.In addition, can provide cheap device.And, function and quality can be improved, and then commodity and durability can be improved.
Description of drawings
Fig. 1 (A) is the vertical profile side view of the slave end speed change belt wheel that is connected with this centrifugal clutch of centrifugal clutch of the present invention, and Fig. 1 (B) is the plan view of centrifugal clutch, and Fig. 1 (C) is a portion enlarged view of Fig. 1 (A).
Fig. 2 (A) is the plan view when being installed to two clutch weights on the clutch plate, and Fig. 2 (B) is the plan view of side plate.
Fig. 3 (A) is mounted in the vertical profile side view of the clutch weight side on the clutch plate, and Fig. 3 (B) is the vertical profile side view of side plate.
Fig. 4 (A) is the process chart of riveted joint to Fig. 4 (C).
Fig. 5 (A), Fig. 5 (B) are the process charts that is pressed into.
Fig. 6 (A) is the plan view when being installed to three clutch weights on the clutch plate, and Fig. 6 (B) is the plan view of side plate.
Fig. 7 (A) forms the mode of execution that riveted joint is out of shape by form the wire groove on the path axial region, and Fig. 7 (B) is by form the mode of execution that a plurality of points form the riveted joint distortion on the path axial region.
Fig. 8 is the skeleton diagram of expression prior art.
Embodiment
Below, based on accompanying drawing embodiments of the present invention are described.Fig. 1 is centrifugal clutch and the major component amplification view thereof that connects on the stepless speed variator of the present invention.Centrifugal clutch of the present invention uses with the stepless speed variator that has same axis mechanism and disposed adjacent shown in Fig. 1 (A), plays the effect of the driving force disconnection/connection that will transmit via stepless speed variator in the vehicles such as cart.This centrifugal clutch mainly is made of clutch outer member 1, clutch plate 2, centrifugal hammer 5 etc.The equipment that is connected on this centrifugal clutch is slave end speed change belt wheel 10 (with reference to Fig. 1 (A)), is the variable pattern of belt wheel groove width.These slave end speed change belt wheel 10 never illustrated driving side speed change belt wheel transmission rotations of quilt via band.Utilize centrifugal clutch of the present invention, connect or disconnect the rotation transmission of carrying out to slave end speed change belt wheel 10 via band from driving side speed change belt wheel.
This clutch outer member 1 is roughly cup-shaped shown in Fig. 1 (A), be formed with discoideus sidepiece 1b around propeller boss 1a, is formed with tubular sidepiece 1c on the outer periphery of this discoideus sidepiece 1b.This tubular sidepiece 1c is cylindric, and the lining that is installed on the centrifugal hammer 5 of swing contacts with its inner circle wall face 1c1.
Shown in Fig. 1 (A), Fig. 1 (B), Fig. 2 (A) and Fig. 3 (A), aforementioned clutch plate 2 offers fixed hole 2b at the center of main board portion 2a, in fixed hole 2b, the shaft end of the propeller boss 10a of the fixed pulley side of installation slave end speed change belt wheel 10 (variable pulleys).This fixed hole 2b makes the elliptical shape that is formed with the straight line shape edge in the width direction both sides, can firmly fix with respect to sense of rotation on the shaft end of aforementioned propeller boss 10a.This clutch plate 2 forms the panel of flat condition.
In the surface side of this clutch plate 2, plant aforementioned rest pin 3.Be equipped with through hole 2c in order to plant this rest pin 3.In this through hole, insert the axle head of rest pin 3, fix (with reference to Fig. 1 (C)) by being pressed into or riveting.Secondly, centrifugal hammer 5 is by the metal alloy moulding of consistent and even matter, and its global shape forms roughly circular-arc or crescent shown in Fig. 2 (A).
Length direction one at this centrifugal hammer 5 is distolateral, is formed with the 5P of oscillation center portion.The 5P of this oscillation center portion forms through hole, inserts aforementioned rest pin 3, and via this rest pin 3, the 5P of oscillation center portion becomes oscillation center, and centrifugal hammer 5 carries out wobbling action on clutch plate 2.Aforementioned rest pin 3 plants on the diametric(al) end of clutch plate 2, so the 5P of oscillation center portion of centrifugal hammer 5 also is positioned at the diametric(al) end of clutch plate 2, promptly near on the position of periphery ora terminalis.
This makes roughly circular-arc centrifugal hammer 5 and is formed with outer circumferential face 5a and inner peripheral surface 5b.Aforementioned outer circumferential face 5a and inner peripheral surface 5b form circular-arc face respectively.In addition, the outer circumferential face 5a of centrifugal hammer 5 is an outer circumferential side, and towards the outside of clutch plate 2, inner peripheral surface 5b is interior all sides, towards the central side of clutch plate 2.
Shown in Fig. 1 (A), aforementioned clutch plate 2 is transmitted the rotation with slave end speed change belt wheel 10 (variable pulleys) via aforementioned propeller boss 10a, be installed with and expand the centrifugal hammer of opening 5,5 by the centrifugal force of its rotation and to peripheral direction, the centrifugal hammer 5,5 that contacts with the inner circle wall face 1c1 of the tubular sidepiece 1c of clutch outer member 1 is supported, rotation is passed to this clutch outer member 1.On the outer circumferential face 5a of this centrifugal hammer 5, lining is installed.
In addition, side plate 6 is the plates that are formed with the roughly circular plate shape of a through hole 6b at the center.And, near periphery, be formed with through hole 6a.This through hole 6a to wear number identical with the installation number of aforementioned rest pin 3.Therefore, if the type of two centrifugal hammers 5 is installed, then aforementioned through hole 6a forms two (with reference to Fig. 2).In addition, if the type of three centrifugal hammers 5 is installed, then form three through hole 6a (with reference to Fig. 6).
This side plate 6 is fixed on the aforementioned rest pin 3.This is fixed with riveted joint and is pressed into this dual mode.At first, in the mode of utilizing riveted joint to fix, aforementioned rest pin 3 is formed with big footpath axial region 3a and path axial region 3b (with reference to Fig. 4 (A)).And then, at the end of this path axial region 3b, be formed with poroid recess 3c vertically.The diameter of aforementioned path axial region 3b is for inserting the size of the through hole 6a that leads to aforementioned side plate 6.The diameter of aforementioned big footpath axial region 3a is bigger than the internal diameter of aforementioned through hole 6a.Thereby, become following state: the through hole 6a position of side plate 6 by and path axial region 3b between ladder surface 3d, the i.e. end bearing of big footpath axial region 3a, path axial region 3b connects this through hole 6a (with reference to Fig. 4 (B)).The position of the ladder surface 3d that forms by the end difference of determining between this big footpath axial region 3a and aforementioned path axial region 3b, the length of big footpath axial region 3a is suitably set with respect to the length of the 5P of oscillation center portion of centrifugal hammer 5, and side plate 6 is fixed on the rest pin 3 in the mode that has appropriate gap with respect to centrifugal hammer 5.
And, connect at aforementioned path axial region 3b under the state of through hole 6a, to recess 3c tool using 11 etc., the end of path axial region 3b expanded opens, with the path axial region 3b of rest pin 3 to axial advance, thereby make its riveted joint distortion (with reference to Fig. 4 (C)).Promptly, by with the path axial region 3b of rest pin 3 to the power that axially pushes, this path axial region 3b is opened to the axial-radial expansion, side plate 6 is fixed on the locational ladder surface 3d of big footpath axial region 3a end (and the end difference between path axial region 3b) of rest pin 3, and, aforementioned path axial region 3b terminal part to radially expanding, become bigger than the through hole 6a of side plate 6, thereby aforementioned rest pin 3 and side plate 6 firmly fixes by the riveted joint distortion.By adopting this fixed structure, reduced component parts, it is simple that structure becomes.
Like this, by on the terminal part of the path axial region 3b of rest pin 3, forming recess 3c, path axial region 3b, and expands to diametric(al) and to open by to axially pushing at the through hole 6a position of side plate 6, so can be axially and radially keep rest pin 3 and side plate 6 securely on this both direction.Recess 3c forms the shape that narrows vertically from the opening portion of axle head on path axial region 3b.
In addition, also recess 3c is made the hole in cone shape hole and thin footpath sometimes.Be fixed in the following manner at the between centers that is out of shape two rest pins 3 of the clutch plate 2 that centrifugal hammer 5 has been installed by such riveted joint, promptly, by the plate that is arranged at both sides from two-side supporting pin 3, described rest pin 3 is by the wobbling action of the side plate 6 supporting centrifugal hammers 5 of distolateral rest pin 3 terminal parts of supporting its another, thus, the number of centrifugal hammer 5 can be made as 2, and can not produce use in practice under the situation of rocking on the centrifugal hammer 5.Secondly, be pressed in utilization under the situation of mode, do not form aforementioned recess 3c (with reference to Fig. 5 (B)).
In addition, the diameter of aforementioned path axial region 3b forms greatlyyer slightly than the internal diameter of the through hole 6a of aforementioned side plate 6, becomes the structure (with reference to Fig. 5 (A)) of path axial region 3b with respect to through hole 6a interference fit.And then, also there be of the riveted joint distortion of the terminal part of the path axial region 3b that makes this rest pin 3 to other mode of executions that radially increase.In this embodiment, on path axial region 3b, do not form aforementioned recess 3c,, make its riveted joint distortion by forming the recess of wire slot part 3c1 or the 3c2 of point-like portion.Aforementioned wire slot part 3c1 is circular-arc groove shown in Fig. 7 (A), is formed with two.And shown in Fig. 7 (B), the 3c2 of point-like portion is formed with a plurality of (about 3).Like this, aforementioned rest pin 3 and side plate 6 are fixed to be pressed into mode, and, can be firmly fixed rest pin 3 and side plate 6 more by preventing to come off by the riveted joint distortion.
Claims (5)
1. centrifugal clutch, via the rest pin swing centrifugal hammer below three is installed freely at the periphery position of the clutch plate of circular plate shape roughly, this centrifugal hammer passes to clutch outer member with rotation, it is characterized in that, possess side plate, described side plate is formed with the distal portion of aforementioned rest pin and inserts logical through hole, and aforementioned side plate is configured on the aforementioned centrifugal hammer in the mode that covers aforementioned centrifugal hammer, and the end of aforementioned rest pin is inserted the through hole of logical side plate and is fixed.
2. centrifugal clutch as claimed in claim 1 is characterized in that, the end of the rest pin of the through hole of slotting logical aforementioned side plate is out of shape by riveted joint and is fixed on the aforementioned side plate.
3. centrifugal clutch as claimed in claim 1 or 2 is characterized in that, the rest pin of inserting the through hole of logical aforementioned side plate is fixed on by being pressed on the aforementioned side plate.
4. centrifugal clutch as claimed in claim 1 or 2 is characterized in that, the rest pin of inserting the through hole of logical aforementioned side plate is fixed on the aforementioned side plate by being pressed into and riveting distortion.
5. as each described centrifugal clutch in the claim 1 to 4, it is characterized in that aforementioned centrifugal hammer is two.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2005380513A JP4309889B2 (en) | 2005-12-28 | 2005-12-28 | Centrifugal clutch |
| JP2005380513 | 2005-12-28 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1991194A true CN1991194A (en) | 2007-07-04 |
Family
ID=38213642
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200610172466.5A Pending CN1991194A (en) | 2005-12-28 | 2006-12-26 | Centrifugal clutch |
Country Status (2)
| Country | Link |
|---|---|
| JP (1) | JP4309889B2 (en) |
| CN (1) | CN1991194A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102203449A (en) * | 2008-10-29 | 2011-09-28 | Brp罗泰克斯有限两合公司 | Centrifugal clutch |
| CN112005027A (en) * | 2018-05-11 | 2020-11-27 | 株式会社F.C.C. | Centrifugal clutch |
| CN112074668A (en) * | 2018-05-18 | 2020-12-11 | 株式会社F.C.C. | Centrifugal clutch |
| CN112984002A (en) * | 2019-12-17 | 2021-06-18 | 赢擎斯工程有限责任公司 | Centrifugal clutch |
-
2005
- 2005-12-28 JP JP2005380513A patent/JP4309889B2/en not_active Expired - Fee Related
-
2006
- 2006-12-26 CN CN200610172466.5A patent/CN1991194A/en active Pending
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102203449A (en) * | 2008-10-29 | 2011-09-28 | Brp罗泰克斯有限两合公司 | Centrifugal clutch |
| CN102203449B (en) * | 2008-10-29 | 2013-03-27 | Brp罗泰克斯有限两合公司 | Centrifugal clutch |
| CN112005027A (en) * | 2018-05-11 | 2020-11-27 | 株式会社F.C.C. | Centrifugal clutch |
| CN112005027B (en) * | 2018-05-11 | 2022-07-05 | 株式会社F.C.C. | Centrifugal clutch |
| CN112074668A (en) * | 2018-05-18 | 2020-12-11 | 株式会社F.C.C. | Centrifugal clutch |
| CN112074668B (en) * | 2018-05-18 | 2023-01-17 | 株式会社F.C.C. | Centrifugal clutch |
| CN112984002A (en) * | 2019-12-17 | 2021-06-18 | 赢擎斯工程有限责任公司 | Centrifugal clutch |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2007177989A (en) | 2007-07-12 |
| JP4309889B2 (en) | 2009-08-05 |
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