WO2015194196A1 - 皿ばね - Google Patents
皿ばね Download PDFInfo
- Publication number
- WO2015194196A1 WO2015194196A1 PCT/JP2015/003119 JP2015003119W WO2015194196A1 WO 2015194196 A1 WO2015194196 A1 WO 2015194196A1 JP 2015003119 W JP2015003119 W JP 2015003119W WO 2015194196 A1 WO2015194196 A1 WO 2015194196A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- spring
- diameter side
- cross
- shape portion
- sectional shape
- Prior art date
Links
- 210000000078 claw Anatomy 0.000 description 18
- 230000005540 biological transmission Effects 0.000 description 7
- 230000007423 decrease Effects 0.000 description 4
- 230000002093 peripheral effect Effects 0.000 description 4
- 230000035939 shock Effects 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 230000003247 decreasing effect Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000010720 hydraulic oil Substances 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 238000006073 displacement reaction Methods 0.000 description 1
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
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F1/00—Springs
- F16F1/02—Springs made of steel or other material having low internal friction; Wound, torsion, leaf, cup, ring or the like springs, the material of the spring not being relevant
- F16F1/32—Belleville-type springs
-
- 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
- F16D13/00—Friction clutches
- F16D13/22—Friction clutches with axially-movable clutching members
- F16D13/38—Friction clutches with axially-movable clutching members with flat clutching surfaces, e.g. discs
- F16D13/52—Clutches with multiple lamellae ; Clutches in which three or more axially moveable members are fixed alternately to the shafts to be coupled and are pressed from one side towards an axially-located member
-
- 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
- F16D13/00—Friction clutches
- F16D13/22—Friction clutches with axially-movable clutching members
- F16D13/38—Friction clutches with axially-movable clutching members with flat clutching surfaces, e.g. discs
- F16D13/52—Clutches with multiple lamellae ; Clutches in which three or more axially moveable members are fixed alternately to the shafts to be coupled and are pressed from one side towards an axially-located member
- F16D13/54—Clutches with multiple lamellae ; Clutches in which three or more axially moveable members are fixed alternately to the shafts to be coupled and are pressed from one side towards an axially-located member with means for increasing the effective force between the actuating sleeve or equivalent member and the pressure member
-
- 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
- F16D13/00—Friction clutches
- F16D13/58—Details
- F16D13/583—Diaphragm-springs, e.g. Belleville
-
- 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
- F16D25/00—Fluid-actuated clutches
- F16D25/06—Fluid-actuated clutches in which the fluid actuates a piston incorporated in, i.e. rotating with the clutch
- F16D25/062—Fluid-actuated clutches in which the fluid actuates a piston incorporated in, i.e. rotating with the clutch the clutch having friction surfaces
- F16D25/063—Fluid-actuated clutches in which the fluid actuates a piston incorporated in, i.e. rotating with the clutch the clutch having friction surfaces with clutch members exclusively moving axially
- F16D25/0635—Fluid-actuated clutches in which the fluid actuates a piston incorporated in, i.e. rotating with the clutch the clutch having friction surfaces with clutch members exclusively moving axially with flat friction surfaces, e.g. discs
- F16D25/0638—Fluid-actuated clutches in which the fluid actuates a piston incorporated in, i.e. rotating with the clutch the clutch having friction surfaces with clutch members exclusively moving axially with flat friction surfaces, e.g. discs with more than two discs, e.g. multiple lamellae
Definitions
- the present invention relates to a disc spring used for absorbing a shock generated when a clutch of a multi-plate clutch mechanism such as an automatic transmission for an automobile is engaged.
- a disc spring that absorbs a shock generated when the clutch is engaged is used.
- FIG. 18 is an enlarged cross-sectional view of a main part showing the configuration of a multi-plate clutch mechanism 100 to which the conventional disc spring 200 described in Patent Document 1 is applied.
- the multi-plate clutch mechanism 100 includes a clutch drum 101 having a substantially bottomed cylindrical shape, and an inner spline 103 extending in the axial direction is formed on an inner peripheral surface thereof.
- a clutch hub 105 is concentrically arranged inside the clutch drum 101, and a spline 107 is formed on the outer peripheral surface thereof.
- the outer plate 111 and the inner plate 113 of the friction clutch 109 are alternately arranged.
- the outer plate 111 is engaged with the inner spline 103 of the clutch drum 101
- the inner plate 113 is engaged with the spline 107 of the clutch hub 105.
- the piston 117 of the hydraulic actuator 115 is disposed on one side of the friction clutch 109, and the pressure receiving plate 119 is disposed on the other side.
- the hydraulic actuator 115 includes a hydraulic chamber 121 between the piston 117 and the clutch drum 101.
- a disc spring 200 is interposed between the outer plate 111 of the friction clutch 109 and the piston 117 of the hydraulic actuator 115.
- the disc spring 200 has an outer peripheral side facing the outer plate 111 of the friction clutch 109 and an inner peripheral side facing the piston 117 of the hydraulic actuator 115.
- the piston 117 driven by hydraulic pressure causes the outer plate 111 and the inner plate 113 of the friction clutch 109 to move against the pressure receiving plate 119 via the disc spring 200. Press.
- the friction clutch 109 is fastened according to the pressing force by this pressing, and torque transmission between the clutch drum 101 and the clutch hub 105 is controlled.
- the disc spring 200 is elastically deformed with respect to the outer plate 111 by the pressing of the piston 117, and absorbs a shock generated when the clutch is engaged.
- a general load characteristic of such a disc spring 200 is a characteristic in which the spring constant decreases with respect to the deflection amount as shown in FIGS. 19 (A) and 19 (B). For this reason, in order to ensure the required load, it is necessary to increase the plate thickness of the disc spring 200, and there is a problem that it is impossible to assemble in a limited space.
- the problem to be solved is that it is necessary to increase the plate thickness of the disc spring in order to secure the required load, and it is difficult to assemble in a limited space.
- the present invention makes it possible to easily secure the required load without increasing the plate thickness due to the characteristic that the spring constant increases even when the deflection amount exceeds a certain deflection amount.
- a disc spring in which the spring portion is interposed between a pair of rotating members that move relative to each other in the axial direction, and the spring portion contacts one of the rotating members. Are formed on at least one of the inner diameter side and the outer diameter side of the spring portion and are in contact with the other of the rotating members, and are in close contact with the rotating members. And having a linear cross-sectional shape portion for enabling narrow pressure.
- the present invention has the above-described configuration, when the pair of rotating members relatively move in the axial direction and approach each other, the contact position of the round cross-section portion with one of the rotating members smoothly moves to the inner diameter side or the outer diameter side.
- the spring constant increases without decreasing even when the amount of deflection exceeds a certain amount of deflection. Therefore, it becomes easy to ensure the required load without increasing the plate thickness of the disc spring.
- (A) is a front view of a disc spring
- (B) is a cross-sectional view taken along line IB-IB in (A).
- (Example 1) It is sectional drawing of a spring part.
- (Example 1) It is a load characteristic figure of a disc spring.
- (Example 1) It is sectional drawing of the spring part which shows the curvature center position of a round cross-section part.
- (Example 1) It is a load characteristic figure which shows the difference in the load characteristic of a disc spring by the difference in the curvature center position of a round cross-section part.
- (Example 1) It is sectional drawing of the spring part which shows the curvature radius of a round cross-section part.
- Example 1 It is a load characteristic figure which shows the difference in the load characteristic of a disk spring by the difference in the curvature radius of a round cross-section part.
- Example 1 It is sectional drawing which shows the positional relationship of each part of a spring part.
- Example 1 It is sectional drawing of the spring part which formed the round cross-section shape part with the some curvature.
- Example 2 It is a load characteristic figure of a disc spring.
- Example 2 It is sectional drawing of the spring part provided with the nail
- Example 3 (A) is a front view of a disc spring provided with a lever on the inner diameter side, and (B) is a cross-sectional view taken along line XIIIB-XIIIB in (A).
- Example 3) (A) is a front view of a disc spring provided with a claw on the outer diameter side, and (B) is a cross-sectional view taken along line XIVB-XIVB in (A).
- Example 3) It is sectional drawing of a spring part.
- Example 4 It is a graph which shows the fluctuation
- Example 4 It is a graph which shows the fluctuation
- Example 4 It is principal part sectional drawing of the multi-plate clutch mechanism which shows attachment of a disk spring.
- (A) (B) is a load characteristic figure of a disc spring.
- a round cross-section for contacting one of the rotating members, and at least one of the inner diameter side or the outer diameter side of the spring portion that is continuous with the round cross-section and making contact with the other of the rotating members It has been realized by having a linear cross-sectional shape portion for enabling narrow pressure tightly between members.
- FIG. 1A is a front view of a disc spring
- FIG. 1B is a cross-sectional view taken along line IB-IB of FIG. 2A
- FIG. 2 is a cross-sectional view of a spring portion
- FIG. 3 is a load characteristic of the disc spring.
- the disc spring 1 has a circular disc-shaped spring portion 3.
- a hole 5 is provided in the inner diameter of the spring portion 3.
- the spring portion 3 of the disc spring 1 is used by being interposed between a pair of rotating members that move relative to each other in the axial direction to approach and separate from each other.
- the disc spring 1 is assembled to a multi-plate clutch mechanism such as an automatic transmission (AT) for automobiles or a metal belt type automatic transmission (CVT).
- a multi-plate clutch mechanism such as an automatic transmission (AT) for automobiles or a metal belt type automatic transmission (CVT).
- the outer plate 7 of the clutch and the piston 9 of the hydraulic actuator serve as the other side.
- the inner diameter side of the disc spring 1 can be tightly pressed in close contact with the pressure of the piston 9 against the outer plate 7. Note that the outer plate 7 and the piston 9 are not shown.
- the assembly of the disc spring 1 is not particularly limited, and the pressure receiving plate of the friction clutch and the stopper on the clutch drum side may be assembled as a pair of rotating members.
- the outer diameter side of the disc spring 1 can be narrowed tightly by both rotating members. Moreover, the linear cross-sectional shape part mentioned later of an internal diameter side can also be eliminated.
- the spring portion 3 is formed with a uniform plate thickness, and has a round cross-sectional shape portion 11 and a straight cross-sectional shape portion 13.
- the spring portion 3 is formed by pressing, and the round cross-sectional shape portion 11 is for contacting the outer plate 7 which is one of the rotating members.
- the center portion of the round cross-sectional shape portion 11 serves as a contact point and contacts the outer plate 7 in a free state.
- the radius of curvature R and the central angle ⁇ (not shown) of the R-shaped cross-section portion 11 can be arbitrarily set as long as the following formula is satisfied.
- the center of curvature of the round cross-section portion 11 is located on a straight line passing through the contact point of the round cross-section portion 11 with respect to the outer plate 7 and parallel to the rotational axis of the outer plate 7.
- round cross-section portion 11 can be constituted by a hyperbola, an elliptic curve, or other curves.
- the straight cross-sectional shape portion 13 is continuous with the round cross-section shape portion 11 and is formed on the inner diameter side and the outer diameter side of the spring portion 3, and has an inner diameter side linear cross-section shape portion 13a and an outer diameter-side straight cross-section shape portion 13b. Yes.
- the inner diameter side linear cross-sectional shape portion 13 a indicates a range with a pair of thick lines for the sake of clarity.
- the linear cross-sectional shape part 13 can also be formed in one of an inner diameter side or an outer diameter side.
- the round cross-sectional shape portion 11 is formed so as to reach the outer diameter side or the inner diameter side where the linear cross-sectional shape portion 13 is not formed.
- the inner diameter side linear cross-sectional shape portion 13a is brought into contact with the piston 9 which is the other of the rotating members, and can be tightly pressed between the outer plate 7 and the piston 9 which are both rotating members. In this narrow pressure, the round cross-section portion 11 is not narrowed between the outer plate 7 and the piston 9. Therefore, the inner diameter side linear cross-sectional shape portion 13a can be reliably narrowed tightly between the outer plate 7 and the piston 9, and load characteristics can be obtained accurately.
- the continuation of the inner diameter side linear sectional shape portion 13a and the outer diameter side linear sectional shape portion 13b to the rounded sectional shape portion 11 is continuously and smoothly performed without having a step or a corner. Specifically, an inner diameter side linear sectional shape portion 13 a and an outer diameter side linear sectional shape portion 13 b are extended in the direction of a radius tangent to each end of the radius sectional shape portion 11.
- the outer diameter side linear cross-sectional shape portion 13b it is also possible to set the outer diameter side linear cross-sectional shape portion 13b to have an angle parallel to the outer plate 7.
- the pressing force of the piston 9 is transmitted to the outer plate 7 of the friction clutch through the round cross-sectional shape portion 11 of the disc spring 1, and the outer plate 7 and the inner plate (not shown) are pressed against the pressure receiving plate.
- the friction clutch is engaged according to the pressing force by this pressing, and torque transmission between the clutch drum and the clutch hub is controlled.
- the disc spring 1 is elastically deformed while gradually moving the contact point of the round cross-section portion 11 to the outer plate 7 toward the inner diameter side as described above, and the shock generated at the time of clutch engagement while increasing the spring constant as described above. To absorb.
- the load characteristics of the disc spring 1 are such that the spring constant increases with respect to the amount of deflection and the load increases even if the amount of deflection exceeds a certain amount of deflection as shown in FIG. For this reason, the disc spring 1 can easily ensure the required load without increasing the plate thickness.
- FIG. 4 is a cross-sectional view of the spring portion showing the position of the center of curvature of the round cross-section shape portion
- FIG. 5 is a load characteristic diagram showing the difference in the load characteristics of the disc spring due to the difference in the center of curvature position of the round-section shape portion.
- the position of the contact point of the round cross-section portion 11 with respect to the outer plate 7 can be specified as a round center position (R center position): ⁇ A with respect to the rotation center of the rotating member.
- R center position a round center position
- ⁇ A the initial force point changes, so that the magnitude of the load can be controlled.
- the limit of the position of the R center is a position where the linear cross-sectional shape portion 13 is not provided on the inner diameter side or the outer diameter side.
- FIG. 6 is a cross-sectional view of the spring portion showing the radius of curvature of the round cross-section shape portion
- FIG. 7 is a load characteristic diagram showing the difference in the load characteristic of the disc spring due to the difference in the curvature radius of the round cross-section shape portion.
- the upper limit value of the size of R is a size at which the linear cross-section 13 is not provided on the inner diameter side or the outer diameter side.
- the load characteristics of the disc spring 1 due to the change in the curvature radius R are as shown in FIG. As R increases, the rise of the load with respect to the stroke increases, and the increase in the spring constant with respect to the deflection amount can be further increased.
- FIG. 8 is a cross-sectional view showing the positional relationship of each part of the spring part.
- the spring portion 3 has the round cross-sectional shape portion 11 and the linear cross-sectional shape portion 13 exists on the inner diameter side or the outer diameter side.
- This constraint can be defined as follows.
- a straight cross-sectional shape portion 13 is formed on the inner diameter side of the spring portion 3.
- the inner diameter of the spring portion 3 is ⁇ D1
- the camber angle is ⁇ relative to the outer plate 7 of the inner diameter side linear cross-sectional shape portion 13a
- the spring portion 3 is R ⁇ tan ⁇ 1 ⁇ (A ⁇ D1) / cos ⁇ Is established.
- the inner diameter side central angle ⁇ 1 is an inner diameter when the central angle of the round cross-section portion 11 is divided by a radius R connecting the contact point of the round cross-section portion 11 with the outer plate 7 and the center of curvature of the round cross-section portion 11. Means the side.
- a straight cross-sectional shape portion 13 is formed on the outer diameter side of the spring portion 3.
- the spring portion 3 is R ⁇ tan ⁇ 2 ⁇ (D2-A) / cos ⁇ Is established.
- the outer-diameter side central angle ⁇ 2 means the outer-diameter side angle when the central angle of the round cross-section portion 11 is divided as described above.
- FIGS. 9 and 10 relate to Example 2 of the present invention
- FIG. 9 is a cross-sectional view of a spring portion in which a round cross-sectional shape portion is formed with a plurality of curvatures
- FIG. 10 is a load characteristic diagram of a disc spring.
- the spring portion 3A of the disc spring 1A of the present embodiment has a round cross-sectional shape portion formed with a plurality of radii of curvature R1 and R2, and the first and second round cross-sectional shape portions 11Aa and 11Ab are smooth each other. It was made continuous.
- the first rounded cross-sectional shape portion 11Aa smoothly continues to the outer-diameter-side linear cross-sectional shape portion 13Ab, and the second rounded cross-sectional shape portion 11Ab smoothly continues to the inner-diameter-side linear cross-sectional shape portion 13Aa as in the first embodiment. is there.
- the load characteristics of the disc spring 1A due to the change in the curvature radius R are as shown in FIG.
- the operating range of R2 can be made continuous with the operating range of R1, and the increase of the spring constant with respect to the deflection amount can be further increased.
- FIGS. 11 to 14 relate to a third embodiment of the present invention
- FIGS. 11 and 12 are cross-sectional views of a spring portion provided with claws on the inner and outer diameter sides
- FIG. 13 (A) is provided with a lever on the inner diameter side
- Front view of disc spring (B) is a cross-sectional view taken along line XIIIB-XIIIB in (A)
- FIG. 14 (A) is a front view of a disc spring having a claw on the outer diameter side
- (B) is It is XIVB-XIVB arrow sectional drawing of (A).
- This Example 3 was provided with claws and levers as engaging convex portions on at least one of the inner diameter side and the outer diameter side of the spring portion.
- 11 is provided with an inner diameter claw 3Ba and an outer diameter claw 3Bb as claws. It is the same as in the first embodiment that it has a rounded cross-sectional shape portion 11B, an inner-diameter-side linear cross-sectional shape portion 13Ba, and an outer-diameter-side linear cross-sectional shape portion 13Bb.
- the inner diameter claw 3Ca and the outer diameter claw 3Cb are bent in opposite directions with respect to the spring portion 3C. It is the same as in the first embodiment that it has a round cross-sectional shape portion 11C, an inner diameter side linear cross-sectional shape portion 13Ca, and an outer diameter side linear cross-sectional shape portion 13Cb.
- 13 is provided with an inner diameter lever 3Da as a lever. It is the same as in the first embodiment that it has a rounded cross-sectional shape portion 11D, an inner diameter-side linear cross-sectional shape portion 13Da, and an outer-diameter-side linear cross-sectional shape portion 13Db.
- Example 14 is provided with an outer diameter claw 3Eb as a claw. It is the same as that of Example 1 that the rounded cross-sectional shape portion 11E, the inner diameter side linear cross-sectional shape portion 13Ea, and the outer diameter side linear cross-sectional shape portion 13Eb are provided.
- FIG. 15 to 17 relate to a fourth embodiment of the present invention
- FIG. 15 is a cross-sectional view of the spring portion
- FIG. 16 is a variation in load corresponding to the radial length of the outer diameter side of the spring portion of FIG.
- FIG. 17 is a graph showing the variation in load characteristics due to the relationship between the load and the stroke according to the radial direction length on the outer diameter side of the spring portion of FIG.
- the load variation characteristic is such that the load gradually increases in a non-linear manner (curved) in accordance with the increase in the radial length L of the outer diameter side linear cross-section 13Fb.
- the load in a state where the disc spring 1F having different radial lengths L is bent with a specific stroke is compared.
- the increase in the load of the load variation characteristic is based on the fact that the rigidity of the spring portion 3F increases as the radial length L of the outer diameter side linear cross-sectional shape portion 13Fb increases. Further, the increase in load depends on the increase in the volume of the outer diameter side linear cross-sectional shape portion 13Fb, and therefore becomes non-linear with respect to the increase in the radial length L of the outer diameter side linear cross-sectional shape portion 13Fb.
- the load characteristic changes as a whole with respect to the rise of the load with respect to the stroke.
- the radial length L of the outer diameter side linear cross-sectional shape portion 13Fb is increased, the rise of the load with respect to the stroke is increased, and the increase of the spring constant with respect to the stroke (deflection amount) can be further increased.
- the radial length L becomes small, the rise of the load with respect to the stroke becomes small.
- the disc spring 1F of the present embodiment it is possible to control the load characteristics by setting the radial length L of the outer diameter side linear cross-section 13Fb. Moreover, in the disc spring 1F of the present embodiment, the load can be increased or decreased nonlinearly in accordance with the increase or decrease of the radial length L. Therefore, when the radial length L is increased and the increase of the spring constant is further increased. However, it is possible to prevent the radial length L from being inadvertently increased, and it is possible to assemble in a limited space.
- the present embodiment is the same as the first embodiment in terms of structural deformation and operational effects.
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Springs (AREA)
- Hydraulic Clutches, Magnetic Clutches, Fluid Clutches, And Fluid Joints (AREA)
- Mechanical Operated Clutches (AREA)
Abstract
Description
図1(A)は、皿ばねの正面図、(B)は、(A)のIB-IB線矢視断面図、図2は、ばね部の断面図、図3は、皿ばねの荷重特性図である。
そして、図18と同様にして皿ばね1が組み付けられた多板式クラッチ機構では、油圧室に作動油を供給すると、油圧により駆動されたピストン9が、皿ばね1の内径側直線断面形状部13aの内径側縁部を押圧し始め、押圧力の増大と共に内径側直線断面形状部13aがアウタープレート7への密着方向へ変位する。
R×tanθ1<(A-D1)/cosα
が成立する。
R×tanθ2<(D2-A)/cosβ
が成立する。
3、3A、3B、3C、3D、3E、3F ばね部
3Ba、3Ca、3Ca 内径爪(凸部)
3Bb、3Cb、3Cb、3Eb 外径爪(凸部)
3Da 内径レバー(凸部)
11、11B、11C、11D、11E アール断面形状部
11Aa 第1アール断面形状部(アール断面形状部)
11Ab 第2アール断面形状部(アール断面形状部)
13 直線断面形状部
13a、13Aa、13Ba、13Ca、13Da、13Ea、13Fa 内径側直線断面形状部
13b、13Ab、13Bb、13Cb、13Db、13Eb、13Fb 外径側直線断面形状部
R、R1、R2 曲率半径
θ アール断面形状部の中心角
φA アール断面形状部の曲率中心の径方向位置
φD1 ばね部の内径
α、β キャンバー角度
Claims (6)
- 周回皿形状のばね部を有し、軸方向に相対移動して接近離反する一対の回転部材間に前記ばね部が介設される皿ばねであって、
前記ばね部は、前記回転部材の一方に当接させるためのアール断面形状部と、このアール断面形状部に連続し前記ばね部の内径側又は外径側の少なくとも一方に形成されて前記回転部材の他方に当接させ前記両回転部材間で密着状に狭圧可能とするための直線断面形状部とを有する、
ことを特徴とする皿ばね。 - 請求項1に記載の皿ばねであって、
前記ばね部は、前記アール断面形状部を複数の曲率半径で形成した、
ことを特徴とする皿ばね。 - 請求項1記載の皿ばねであって、
前記直線断面形状部が前記ばね部の内径側に形成され、前記アール断面形状部の曲率半径:R、前記アール断面形状部の内径側中心角:θ1、前記アール断面形状部の曲率中心の径方向位置:φA、前記ばね部の内径:φD1、前記内径側の直線断面形状部の前記回転部材の一方に対するキャンバー角度:αとしたとき、
前記ばね部は、
R×tanθ1<(A-D1)/cosα
が成立する
ことを特徴とする皿ばね。 - 請求項1記載の皿ばねであって、
前記直線断面形状部が前記ばね部の外径側に形成され、前記アール断面形状部の曲率半径:R、前記アール断面形状部の外径側中心角:θ2、前記アール断面形状部の曲率中心の径方向位置:φA、前記ばね部の外径:φD2、前記外径側の直線断面形状部の前記回転部材の一方に対するキャンバー角度:βとしたとき、
前記ばね部は、
R×tanθ2<(D2-A)/cosβ
が成立する
ことを特徴とする皿ばね。 - 請求項1~4の何れか1項記載の皿ばねであって、
前記ばね部の内径側又は外径側の少なくとも一方に係合用の凸部を備えた、
ことを特徴とする皿ばね。 - 請求項1~5の何れか1項記載の皿ばねであって、
前記ばね部の外径側の部分の径方向長さは、該部分の径方向長さの増加に応じて非線形に漸次荷重が増加する前記ばね部の荷重変動特性に基づいて設定された、
ことを特徴とする皿ばね。
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201580032697.3A CN106460984B (zh) | 2014-06-20 | 2015-06-22 | 碟形弹簧 |
JP2016529073A JP6538047B2 (ja) | 2014-06-20 | 2015-06-22 | 皿ばね |
US15/320,257 US10060493B2 (en) | 2014-06-20 | 2015-06-22 | Disk spring |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2014127762 | 2014-06-20 | ||
JP2014-127762 | 2014-06-20 |
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PCT/JP2015/003119 WO2015194196A1 (ja) | 2014-06-20 | 2015-06-22 | 皿ばね |
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JP (1) | JP6538047B2 (ja) |
CN (1) | CN106460984B (ja) |
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Cited By (2)
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CN106015415A (zh) * | 2016-08-07 | 2016-10-12 | 上海核工碟形弹簧制造有限公司 | 接触点可变的碟形弹簧 |
JP2016223585A (ja) * | 2015-06-02 | 2016-12-28 | 平和発條株式会社 | 皿ばね |
Families Citing this family (4)
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JP6731265B2 (ja) * | 2016-03-18 | 2020-07-29 | 株式会社エクセディ | トルクコンバータのロックアップ装置 |
CH714910A1 (de) * | 2018-04-17 | 2019-10-31 | Liebherr Machines Bulle Sa | Axialkolbenmaschine. |
EP3862592A4 (en) * | 2018-10-02 | 2022-06-29 | NHK Spring Co., Ltd. | Disc spring, disc spring device, and method for manufacturing disc spring |
IT201800010034A1 (it) * | 2018-11-05 | 2020-05-05 | Adler Spa | Frizione con molla anti-judder, in particolare per un motociclo |
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- 2015-06-22 CN CN201580032697.3A patent/CN106460984B/zh active Active
- 2015-06-22 WO PCT/JP2015/003119 patent/WO2015194196A1/ja active Application Filing
- 2015-06-22 JP JP2016529073A patent/JP6538047B2/ja active Active
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JP2008075877A (ja) * | 2007-10-12 | 2008-04-03 | Nhk Spring Co Ltd | 皿ばね |
JP2009144545A (ja) * | 2007-12-12 | 2009-07-02 | Ihi Corp | ターボチャージャ |
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JP2016223585A (ja) * | 2015-06-02 | 2016-12-28 | 平和発條株式会社 | 皿ばね |
CN106015415A (zh) * | 2016-08-07 | 2016-10-12 | 上海核工碟形弹簧制造有限公司 | 接触点可变的碟形弹簧 |
Also Published As
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US10060493B2 (en) | 2018-08-28 |
JP6538047B2 (ja) | 2019-07-03 |
CN106460984A (zh) | 2017-02-22 |
JPWO2015194196A1 (ja) | 2017-04-20 |
US20170159739A1 (en) | 2017-06-08 |
CN106460984B (zh) | 2018-12-11 |
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