WO2012011428A1 - トルク変動吸収装置 - Google Patents
トルク変動吸収装置 Download PDFInfo
- Publication number
- WO2012011428A1 WO2012011428A1 PCT/JP2011/066072 JP2011066072W WO2012011428A1 WO 2012011428 A1 WO2012011428 A1 WO 2012011428A1 JP 2011066072 W JP2011066072 W JP 2011066072W WO 2012011428 A1 WO2012011428 A1 WO 2012011428A1
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- WIPO (PCT)
- Prior art keywords
- coil spring
- rotating member
- damper
- damper portion
- spring
- Prior art date
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Classifications
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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
- F16D13/00—Friction clutches
- F16D13/58—Details
- F16D13/60—Clutching elements
- F16D13/64—Clutch-plates; Clutch-lamellae
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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
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F15/00—Suppression of vibrations in systems; Means or arrangements for avoiding or reducing out-of-balance forces, e.g. due to motion
- F16F15/10—Suppression of vibrations in rotating systems by making use of members moving with the system
- F16F15/12—Suppression of vibrations in rotating systems by making use of members moving with the system using elastic members or friction-damping members, e.g. between a rotating shaft and a gyratory mass mounted thereon
- F16F15/121—Suppression of vibrations in rotating systems by making use of members moving with the system using elastic members or friction-damping members, e.g. between a rotating shaft and a gyratory mass mounted thereon using springs as elastic members, e.g. metallic springs
- F16F15/123—Wound springs
- F16F15/1238—Wound springs with pre-damper, i.e. additional set of springs between flange of main damper and hub
Definitions
- the present invention is based on the priority claims of Japanese patent applications: Japanese Patent Application No. 2010-214348 (filed on September 24, 2010) and Japanese Patent Application No. 2010-163599 (filed on July 21, 2010). Yes, it is assumed that the entire contents of this application are incorporated in this document by reference.
- the present invention relates to a torque fluctuation absorber that absorbs fluctuation torque between rotating shafts.
- the present invention relates to a torsion buffering device that buffers torsion between rotating members, and more particularly to a torsion buffering device suitable for widening the torsion angle.
- twist buffer is used in the same meaning as the torque fluctuation absorber.
- the torque fluctuation absorber is provided in a power transmission path between an engine and a motor generator (or transmission), and fluctuating torque generated between the engine and the motor generator (or transmission). Is absorbed (suppressed).
- the damper part that absorbs the fluctuation torque by elastic force the hysteresis part that absorbs (suppresses) the fluctuation torque by the hysteresis torque due to friction, etc., and the fluctuation part can no longer absorb the fluctuation torque.
- Patent Documents 1 and 2 disclose conventional torque fluctuation absorbers that have a plurality of independent damper portions in order to increase the torsion angle of the damper portion.
- the main subject of the present invention is to provide a torque fluctuation absorbing device having a plurality of damper portions capable of suppressing an increase in size in the radial direction and axial direction of the device.
- a first damper portion that absorbs fluctuation torque due to torsion between the first rotating member and the second rotating member, the second rotating member, and a third rotating member.
- a second damper portion that absorbs a fluctuating torque due to torsion with the rotating member, and the first damper portion includes a plurality of first coils disposed at first predetermined intervals along the circumferential direction. And a plurality of first coil springs for buffering torsion between the first rotating member and the second rotating member, wherein the second damper portion is radially inward of the first damper portion.
- a plurality of second coil springs disposed at second predetermined intervals along the circumferential direction, and the second rotating member and the first coil springs by the plurality of second coil springs. Between 3 rotating members Buffered Les, positions of the plurality of first coil spring is offset a predetermined angle in the circumferential direction from the positions of the plurality of second coil springs.
- the first damper portion includes two or three first coil springs
- the second damper portion includes two or three second coil springs. It is preferable to have.
- the first damper portion includes three first coil springs
- the second damper portion includes three second coil springs
- the three first coil springs are arranged at positions shifted from each other by an angle of 120 degrees around the rotation axis
- the three second coil springs are displaced from each other by an angle of 120 degrees around the rotation axis.
- the second coil spring is disposed at a position shifted from the first coil spring by an angle of 60 degrees with the rotation axis as a center.
- the second coil spring is disposed between the adjacent first coil springs and radially inward of the first coil spring.
- a diameter of the second coil spring is larger than a diameter of the first coil spring.
- the second coil spring is heavier than the first coil spring.
- the torque fluctuation absorber further includes a first hysteresis section that absorbs fluctuation torque caused by torsion between the first rotating member and the second rotating member, and the second rotating member includes the first rotation member.
- the first hysteresis portion is disposed on both sides in the axial direction from the member, and is periodically disposed at a plurality of locations on the same circumference as the first damper portion, and in the first damper portion.
- a plurality of thrust members disposed at positions shifted in a circumferential direction from the first coil spring, the plurality of thrust members being disposed between the first rotating member and the second rotating member; At the same time, it is prevented from rotating by the second rotating member, and is biased toward the first rotating member by the spring action of the second rotating member, and the first rotating member can be slid by the plurality of thrust members. It is preferably clamped.
- the torque fluctuation absorber includes a stopper portion that restricts excessive torsion of both the first damper portion and the second damper portion, and the stopper portion is fixed to the second rotating member
- the first rotating member has a first protrusion that is formed radially inward and that can abut against the circumferential end surface of the stopper portion by twisting between the first rotating member and the second rotating member.
- the third rotating member is formed radially outward and is twisted between the third rotating member and the second rotating member so that the periphery of the stopper portion is radially inward of the first protrusion. It is preferable to have the 2nd protrusion part which can contact
- the stopper portion is periodically disposed in a plurality of locations on the same circumference as the first damper portion, and the first damper portion is provided with the first damper portion. It is preferable to be disposed at a position shifted in the circumferential direction from the coil spring.
- the stopper portion is disposed radially inward of the thrust member.
- the torque fluctuation absorbing device further includes a limiter section that causes slipping when at least the first damper section and the second damper section cannot absorb the fluctuation torque, and the limiter section includes the first rotating member.
- Two friction materials fixed on both sides of the friction material, a cover plate slidably pressed against one of the friction materials, a pressure plate slidably pressed against the other friction material, and the pressure plate on the cover plate side A disc spring that biases the disc spring, a support plate that supports the disc spring, and a rivet that connects the cover plate and the support plate, and the pressure plate projects to the outer peripheral side at the outer peripheral end surface.
- One or both of the cover plate and the support plate have the third protrusion.
- the first damper portion includes a first coil spring and a third coil spring having different lengths, and the first coil spring and the third coil spring include the first coil spring and the third coil spring.
- the first coil spring and the third coil spring are alternately arranged along the circumferential direction of one damper portion, and the torsion between the first rotating member and the second rotating member is buffered, and the third The coil spring is shorter than the first coil spring, and the inner part of the third coil spring is smaller than the inner part of the first coil spring with respect to the radial direction of the first damper part.
- the second coil spring is disposed radially outside the first damper portion, and the second coil springs are adjacent to each other in the circumferential direction of the second damper portion. It is between the coil spring and the third coil spring, and it is preferably disposed radially inward of the first damper portion than the first coil spring and the third coil springs.
- the second damper portion includes four second coil springs
- the first damper portion includes two first coil springs and two third coils.
- the two first coil springs are arranged at positions shifted from each other by 180 degrees about the rotation axis
- the two third coil springs are positions shifted from each other by 180 degrees about the rotation axis. It is preferable that the first coil spring is disposed at a position shifted from the third coil spring by 90 degrees about the rotation axis.
- the second rotating member includes a ring member that supports the second coil spring, and a flange member that engages with the ring member
- the third rotating member includes: It is preferable to provide a plate member that comes into contact with and separates from the second coil spring.
- the second coil spring is disposed between the ring member and the plate member.
- the first rotating member and the first rotating member are disposed at both ends of the first coil spring, and when twisting occurs between the first rotating member and the second rotating member.
- the first coil member is disposed at both longitudinal ends of the third coil spring, and the first rotating member is twisted between the first rotating member and the second rotating member.
- the plurality of second coil springs include a twenty-first coil spring and a twenty-second coil spring having different lengths, and the twenty-second coil spring is more than the twenty-first coil spring.
- the length of the second damper portion is short, and only the 21st coil spring acts on the second damper portion in the initial torsion between the second rotating member and the third rotating member, and the second rotating member and the third rotating portion are operated. It is preferable that the twenty-first coil spring and the twenty-second coil spring act on the later twist between the members.
- the second coil spring extends linearly with respect to a longitudinal direction of the second coil spring.
- a first damper portion having a substantially annular shape for buffering a twist between the first rotating member and the second rotating member, a third rotating member, and a fourth rotating member.
- a second damper portion having a substantially annular shape that cushions torsion between the member, the third rotating member rotates integrally with the second rotating member, and the first damper portion includes a plurality of second damper portions.
- a plurality of first coil springs disposed along a circumferential direction of the first damper, and the first coil springs between the first rotating member and the second rotating member.
- the torsion is buffered, and the second damper portion has second and third coil springs having different lengths, and the second coil spring and the third coil spring are arranged around the second damper portion.
- direction The twists between the third rotating member and the fourth rotating member are buffered by the second coil spring and the third coil spring, and the third coil spring is
- the coil spring is shorter than the second coil spring, and is disposed radially outside the second damper portion with respect to the second coil spring.
- the first coil springs are adjacent to each other in the circumferential direction of the first damper portion. It is located between the second coil spring and the third coil spring, and is disposed radially inward of the second damper portion with respect to the second coil spring and the third coil spring.
- the first damper portion includes four first coil springs
- the second damper portion includes two second coil springs and two third coils.
- the two second coil springs are arranged at positions shifted from each other by 180 degrees about the rotation axis
- the two third coil springs are positions shifted from each other by 180 degrees about the rotation axis.
- the second coil spring is disposed at a position shifted by 90 degrees from the third coil spring with the rotation axis as a center.
- the first rotating member rotates integrally with the third rotating member, and the third rotating member is engaged with the third rotating member so that twisting is allowed within a predetermined angle range with respect to the third rotating member. It is preferable to provide the 5th rotation member to match.
- the third rotating member and the second rotating member are disposed at both ends of the second coil spring, and when the torsion occurs between the third rotating member and the fourth rotating member.
- the third coil spring is disposed at both ends in the longitudinal direction, and the third coil member is twisted between the third rotating member and the fourth rotating member.
- the plurality of first coil springs include an eleventh coil spring and a twelfth coil spring having different lengths, and the twelfth coil spring is more than the eleventh coil spring.
- the first damper portion has a short length, and only the eleventh coil spring acts on the first torsion between the first rotating member and the second rotating member, and the first rotating member and the second rotating member It is preferable that the eleventh coil spring and the twelfth coil spring act in a later twist.
- the first coil spring extends linearly with respect to the longitudinal direction of the first coil spring.
- a first damper portion that absorbs fluctuation torque due to torsion between the first rotating member and the second rotating member, the second rotating member, and the third rotating member.
- a second damper portion that absorbs fluctuating torque due to torsion between the rotating member, and the first damper portion includes a plurality of first coil springs periodically disposed along the circumferential direction. The torsion between the first rotating member and the second rotating member is buffered by the plurality of first coil springs, and the second damper portion is disposed radially inward of the first damper portion.
- a plurality of second coil springs periodically disposed along the circumferential direction, and a twist between the second rotating member and the third rotating member by the plurality of second coil springs. Buffer the plurality Periodic location of one coil spring, characterized in that a predetermined angular deviation from the periodic positions of the plurality of second coil springs.
- the first damper portion includes two or three first coil springs
- the second damper portion includes two or three second coil springs. It is preferable that it is characterized by having.
- the first damper portion includes three first coil springs
- the second damper portion includes three second coil springs.
- the first coil springs are arranged at positions shifted from each other by an angle of 120 degrees around the rotation axis
- the three second coil springs are displaced from each other by an angle of 120 degrees around the rotation axis.
- the second coil spring is disposed at a position shifted from the first coil spring by an angle of 60 degrees around the rotation axis.
- the second coil spring is disposed between the adjacent first coil springs and radially inward of the first coil spring.
- a diameter of the second coil spring is larger than a diameter of the first coil spring.
- the second coil spring is heavier than the first coil spring.
- the torque fluctuation absorber further includes a first hysteresis section that absorbs fluctuation torque caused by torsion between the first rotating member and the second rotating member, and the second rotating member includes the first rotation member.
- the first hysteresis portion is disposed on both sides in the axial direction from the member, and is periodically disposed at a plurality of locations on the same circumference as the first damper portion, and in the first damper portion.
- a plurality of thrust members disposed at positions shifted in a circumferential direction from the first coil spring, the plurality of thrust members being disposed between the first rotating member and the second rotating member; At the same time, it is prevented from rotating by the second rotating member, and is biased toward the first rotating member by the spring action of the second rotating member, and the first rotating member can be slid by the plurality of thrust members. It is preferably clamped.
- the torque fluctuation absorber includes a stopper portion that restricts excessive torsion of both the first damper portion and the second damper portion, and the stopper portion is fixed to the second rotating member
- the first rotating member has a first protrusion that is formed radially inward and that can abut against the circumferential end surface of the stopper portion by twisting between the first rotating member and the second rotating member.
- the third rotating member is formed radially outward and is twisted between the third rotating member and the second rotating member so that the periphery of the stopper portion is radially inward of the first protrusion. It is preferable to have the 2nd protrusion part which can contact
- the stopper portion is periodically disposed in a plurality of locations on the same circumference as the first damper portion, and the first damper portion is provided with the first damper portion. It is preferable to be disposed at a position shifted in the circumferential direction from the coil spring.
- the stopper portion is disposed radially inward of the thrust member.
- the torque fluctuation absorbing device further includes a limiter section that causes slipping when at least the first damper section and the second damper section cannot absorb the fluctuation torque, and the limiter section includes the first rotating member.
- Two friction materials fixed on both sides of the friction material, a cover plate slidably pressed against one of the friction materials, a pressure plate slidably pressed against the other friction material, and the pressure plate on the cover plate side A disc spring that biases the disc spring, a support plate that supports the disc spring, and a rivet that connects the cover plate and the support plate, and the pressure plate projects to the outer peripheral side at the outer peripheral end surface.
- One or both of the cover plate and the support plate have the third protrusion.
- the first damper portion is radially inward. Therefore, it is not necessary to increase the size in the radial direction and the axial direction of the apparatus while ensuring the twist angle between the first damper part and the second damper part.
- the third coil spring in the second damper portion is made shorter than the length of the second coil spring, and the third coil spring is arranged radially outside the second coil spring.
- the first coil spring of the first damper portion It is possible to set the length of. Therefore, without using an arc-shaped coil spring as in the prior art, a wide angle and low rigidity of the torsion angle of the first damper portion can be realized with only a linear coil spring. A decrease in attenuation performance due to sliding resistance with the rotating member can also be suppressed. Further, the degree of freedom in designing the torsional characteristics of the first damper portion is great, which is advantageous in design.
- the third aspect of the present invention by setting the periodic position of the coil spring of the first damper portion so as to deviate from the periodic position of the coil spring of the second damper portion by a predetermined angle, Therefore, it is not necessary to increase the size in the radial direction of the apparatus while ensuring the twist angle between the first damper portion and the second damper portion.
- FIG. 2 is a cross-sectional view taken along the line XX ′ of FIG. 1 schematically showing the configuration of the torsional shock absorber according to Embodiment 1 of the present invention.
- FIG. 2 is a cross-sectional view taken along the line YY ′ of FIG. 1 schematically showing the configuration of the torsional shock absorber according to Embodiment 1 of the present invention.
- It is a schematic diagram for demonstrating operation
- FIG. 10 is a cross-sectional view taken along the line XX ′ of FIG. 9 schematically showing the configuration of the torque fluctuation absorber according to Embodiment 2 of the present invention.
- the first rotating member (117 in FIG. 9, 15, 16 in FIGS. 2, 3) and the second rotating member (120, 121, FIG. 2, FIG. 9 in FIG. 9). 3, 18, 25, 26), and the second rotating member (120, 121, FIG. 9, FIG. 9). 2, 18, 25, 26 in FIG. 3 and a second damper portion (104 in FIG. 9) that absorbs a fluctuating torque due to a twist between the third rotating member (130 in FIG. 9, 27 in FIG. 2, FIG. 3). 3), and the first damper portion includes a plurality of first coil springs (125 in FIG. 9 and 19 in FIG. 2) disposed at first predetermined intervals along the circumferential direction.
- a plurality of second coil springs that buffer torsion, and the second damper portion is disposed radially inward of the first damper portion and arranged at second predetermined intervals along the circumferential direction. (132 of FIG. 9, 28, 29 of FIG. 3, FIG. 4), and the plurality of second coil springs buffer the torsion between the second rotating member and the third rotating member,
- the positions of the plurality of first coil springs are deviated from the positions of the plurality of second coil springs by a predetermined angle in the circumferential direction.
- the first rotating member (27 in FIGS. 1 to 3) and the second rotating member (25 and 26 in FIGS. 1 to 3).
- the first damper portion (2 in FIGS. 1 to 3), the third rotating member (18 in FIGS. 1 to 3), and the fourth rotating member (FIG. 1 to 3).
- a second damper portion (3 in FIGS. 1 to 3) for buffering torsion between the third rotating member and the second rotating member.
- the first damper portion has a plurality of first coil springs (28 and 29 in FIGS. 1 to 3), and the plurality of first coils along the circumferential direction of the first damper.
- a spring is disposed, and the first coil spring buffers the torsion between the first rotating member and the second rotating member;
- the section includes a second coil spring (19 in FIGS. 1 to 3) and a third coil spring (21 in FIGS. 1 to 3) having different lengths, and the second coil spring and the third coil spring.
- the third coil spring is shorter in length than the second coil spring, and is disposed on the radially outer side of the second damper portion with respect to the second coil spring.
- the circumferential direction of the first damper portion is between the adjacent second coil spring and the third coil spring, and the second coil spring and the third coil spring.
- Yl is disposed radially inwardly of the second damper portion than the spring.
- the first fluctuation absorbing torque caused by the twist between the first rotating member (117 in FIG. 9) and the second rotating member (120, 121 in FIG. 9) is absorbed.
- the torsion between the first rotating member and the second rotating member is buffered by a coil spring, and the second damper portion is arranged radially inward of the first damper portion and extends in the circumferential direction.
- FIG. 1 is a partially cutaway plan view seen from an axial direction schematically showing the configuration of a torsional shock absorber according to Embodiment 1 of the present invention.
- 2 is a cross-sectional view taken along the line XX ′ of FIG. 1 schematically showing the configuration of the torsional shock absorber according to Embodiment 1 of the present invention.
- 3 is a cross-sectional view taken along line YY ′ of FIG. 1 schematically showing the configuration of the torsional shock absorber according to Embodiment 1 of the present invention.
- the torsional shock absorber 1 shown in FIGS. 1 to 3 is applied to a clutch disk in a clutch device.
- the torsional shock absorber 1 is provided in a clutch device disposed in a power transmission path between an engine crankshaft (not shown) and a transmission input shaft (4 in FIG. 2).
- the torsional shock absorber 1 is sandwiched between the pressure plate and the flywheel in the clutch device at the facing portions 10 and 11 so as to be connected and disconnected.
- the torsional shock absorber 1 has a damper portion (2, 3 in FIG. 2) that absorbs a varying torque by a spring force.
- the damper parts (2, 3 in FIG. 2) are a pre-damper part 2 that cushions the initial twist between the crankshaft and the input shaft (4 in FIG. 2). And a main damper portion 3 for buffering torsion between the input shaft (4 in FIG. 2).
- the pre-damper portion 2 and the main damper portion 3 each have a substantially annular shape.
- the torsional shock absorber 1 includes facing members 10 and 11, a disk spring 12, rivets 13 and 14, side plates 15 and 16, a connecting member 17, a flange member 18, and a coil spring 19 as main components.
- the facing 10 is a friction material that can be frictionally engaged with a flywheel (other member is acceptable) that rotates integrally with an engine crankshaft (not shown).
- the facing 10 is formed in an annular shape.
- the facing 10 is fixed to one surface of the disk spring 12 in the axial direction (the left surface in FIG. 2) by a plurality of rivets 13 (see FIG. 2).
- the facing 10 may include rubber, resin, fibers (short fibers, long fibers), particles for adjusting the friction coefficient ⁇ , and the like.
- the facing 11 is a friction material that can be frictionally engaged with a pressure plate that rotates integrally with an engine crankshaft (not shown).
- the facing 11 is formed in an annular shape.
- the facing 11 is fixed to the other axial surface (the right surface in FIG. 3) of the disc spring 12 by a plurality of rivets 14 (see FIG. 3).
- the facing 11 may be made of rubber, resin, fiber (short fiber, long fiber), particles containing friction coefficient ⁇ adjustment, and the like.
- the disk spring 12 is an annular and disk-shaped member having an elastic force against pressing against the disk surface.
- the disk spring 12 has facings 10 and 11 attached to both sides of the outer peripheral portion by a plurality of rivets 13 and 14.
- the disk spring 12 is caulked and fixed to one end of a plurality of connecting members 17 together with the side plate 15 at the inner peripheral portion.
- the disc spring 12 rotates integrally with the side plates 15 and 16.
- the rivet 13 is a member for fixing the facing 10 to one surface (the left surface in FIG. 2) of the disk spring 12 in the axial direction.
- the rivet 14 is a member for fixing the facing 11 to the other surface in the axial direction of the disc spring 12 (the right surface in FIG. 3).
- the side plate 15 is an annular member disposed on one side of the flange member 18 in the axial direction (left side in FIGS. 2 and 3) so as to be separated from the flange member 18.
- the side plate 15 is caulked and fixed to one end of the plurality of connecting members 17 together with the disk spring 12 at a portion near the outer peripheral end.
- the side plate 15 rotates integrally with the disc spring 12 and the side plate 16.
- the side plate 15 includes two window portions 15a for accommodating the coil spring 19 and the two seat members 20, the coil spring 21, the two seat members 22, and an elastic body in the main damper portion 3 at the intermediate portion. And two other windows (not shown) for receiving 23.
- the circumferential end surface of the window portion 15a is in contact with the sheet member 20 so as to be able to contact and separate.
- the window portion 15a holds the sheet member 20 when in contact with the sheet member 20 on the circumferential end surface, and the sheet member 20 moves in the circumferential direction (or the expansion / contraction direction of the coil spring 19) when the sheet member 20 moves away from the circumferential end surface. ) Guide to move along.
- the two window portions 15a are disposed at positions shifted from each other by 180 degrees about the rotation center axis of the side plate 15.
- the circumferential end surfaces of the other window portions (not shown) are in contact with the sheet member 22 so as to be able to contact and separate.
- the other window portion holds the sheet member 22 when contacting the sheet member 22 on the circumferential end surface, and the sheet member 22 moves in the circumferential direction (or when the sheet member 22 moves away from the circumferential end surface).
- the coil spring 21 is guided so as to move along the expansion / contraction direction).
- Two other window portions are disposed at positions shifted from each other by 180 degrees about the rotation center axis of the side plate 15.
- Other window portions are disposed at positions shifted by 90 degrees with respect to the window portion 15a with the rotation center axis of the side plate 15 as the center.
- the circumferential length of the other window portion is shorter than the circumferential length of the window portion 15a.
- the positions of other window portions are arranged so as to be shifted to the outer peripheral side (radially outer side) than the position of the window portion 15a.
- Other window portions have the same configuration as the window portion 16b of the side plate 16.
- the side plate 15 is slidably in contact with the ring member 25 at the pre-damper portion 2 on the inner peripheral side of the main damper portion 3.
- the side plate 15 is supported by the hub member 33 through the thrust member 34 at the inner peripheral end portion so as to be relatively rotatable.
- the side plate 15 is prevented from rotating by the thrust member 34 at the inner peripheral end.
- the side plate 15 is in contact with the thrust member 34 on the surface on the flange member 18 side in the vicinity of the inner peripheral end.
- the side plate 16 is an annular member disposed on the other axial side of the flange member 18 (the right side in FIGS. 2 and 3) so as to be separated from the flange member 18.
- the side plate 16 is caulked and fixed to the other ends of the plurality of connecting members 17 in the vicinity of the outer peripheral end portion.
- the side plate 16 rotates integrally with the disc spring 12 and the side plate 15.
- the side plate 16 includes two window portions 16a for accommodating the coil spring 19 and the two seat members 20, the coil spring 21, the two seat members 22, and the elastic body in the main damper portion 3 at the intermediate portion. And two window portions 16b for accommodating 23.
- the end surface in the circumferential direction of the window portion 16a is in contact with the sheet member 20 so as to be able to contact and separate.
- the window portion 16a holds the sheet member 20 when in contact with the sheet member 20 on the circumferential end surface, and the sheet member 20 moves in the circumferential direction (or the expansion / contraction direction of the coil spring 19) when the sheet member 20 moves away from the circumferential end surface. ) Guide to move along.
- the two window portions 16a are disposed at positions shifted from each other by 180 degrees around the rotation center axis of the side plate 16.
- the end surface in the circumferential direction of the window portion 16b is in contact with the sheet member 22 so as to be able to contact and separate.
- the window portion 16b holds the sheet member 22 when in contact with the sheet member 22 on the circumferential end surface, and the sheet member 22 is in the circumferential direction (or the expansion and contraction direction of the coil spring 21) when the sheet member 22 is separated from the circumferential end surface. ) Guide to move along.
- the two window portions 16b are disposed at positions shifted from each other by 180 degrees about the rotation center axis of the side plate 16.
- the window portion 16b is disposed at a position shifted by 90 degrees with respect to the window portion 16a with the rotation center axis of the side plate 15 as the center.
- the length in the circumferential direction of the window portion 16b is shorter than the length in the circumferential direction of the window portion 16a.
- the position of the window portion 16b is arranged on the outer peripheral side (radially outer side) than the position of the window portion 16a.
- the side plate 16 is engaged with the anti-rotation portion 30a of the thrust member 30 at a portion on the inner peripheral side from the main damper portion 3 so as not to rotate but to move in the axial direction.
- the side plate 16 supports one end of the disc spring 31 at a portion on the inner peripheral side of the rotation preventing portion 30 a of the thrust member 30.
- the side plate 16 supports one end of the disc spring 36 at a portion on the inner peripheral side of the disc spring 31.
- the side plate 16 is supported by the hub member 33 through the thrust member 35 at the inner peripheral end portion so as to be relatively rotatable. The side plate 16 is prevented from rotating by the thrust member 35 at the inner peripheral end.
- the connecting member 17 is a member for connecting the side plates 15 and 16 and the disc spring 12.
- a side plate 15 and a disk spring 12 are caulked and fixed to one end of the connecting member 17 (here, caulking and fixing are performed by two protrusions).
- a side plate 16 is caulked and fixed to the other end of the connecting member 17 (here, caulking is fixed by two protrusions).
- An intermediate portion (body portion) of the connecting member 17 serves as a spacer for maintaining a distance between the side plate 16 and the disc spring 12.
- a plurality (four in FIG. 1) of connecting members 17 are arranged at predetermined intervals in the circumferential direction of the side plates 15 and 16.
- the connecting member 17 is disposed on the outer peripheral side of the outer peripheral surface of the flange member 18 (the outer peripheral surface of the portion on the outermost peripheral side).
- the flange member 18 is an annular and plate-like member disposed on the outer periphery of the outer spline portion 33 b of the hub member 33.
- the flange member 18 includes two window portions 18 a for accommodating the coil spring 19 and the two seat members 20, the coil spring 21, the two seat members 22, and the elastic body 23 in the outer main damper portion 3.
- two window portions 18b for housing the housing.
- the end surface in the circumferential direction of the window portion 18a is in contact with the sheet member 20 so as to be able to contact and separate.
- the window portion 18a holds the sheet member 20 when in contact with the sheet member 20 on the circumferential end surface.
- the two window portions 18a are disposed at positions shifted from each other by 180 degrees about the rotation center axis of the flange member 18.
- the end surface in the circumferential direction of the window portion 18b is in contact with the sheet member 22 so as to be able to contact and separate.
- the window portion 18b holds the sheet member 22 when in contact with the sheet member 22 on the circumferential end surface.
- the two window portions 18b are disposed at positions shifted from each other by 180 degrees about the rotation center axis of the flange member 18.
- the window portion 18b is disposed at a position shifted by 90 degrees with respect to the window portion 18a with the rotation center axis of the flange member 18 as the center.
- the circumferential length of the window 18b is shorter than the circumferential length of the window 18a.
- the position of the window portion 18b is shifted from the position of the window portion 18a to the outer peripheral side (radially outer side).
- the window portions 18 a and 18 b are notched portions that are notched from the outer peripheral end surface of the flange member 18 toward the inner peripheral side.
- the flange member 18 is slidably sandwiched between the ring member 26 and the thrust member 30 on the axially inner surface of the main damper portion 3.
- the flange member 18 has an inner spline portion 18c in which an inner spline is formed at the inner peripheral end.
- the inner spline portion 18c engages with the outer spline portion 33b of the hub member 33 so that the hub member 33 and the flange member 18 are allowed to twist within a predetermined angle range.
- the coil spring 19 is a component part of the main damper portion 3, is accommodated in the window portions 15 a, 16 a, 18 a formed in the side plates 15, 16 and the flange member 18, and contacts the sheet members 20 disposed at both ends. ing.
- the coil spring 19 contracts when the side plates 15 and 16 and the flange member 18 are twisted, and absorbs a shock due to a rotational difference between the side plates 15 and 16 and the flange member 18.
- a coil spring that is straight (extends linearly) in the expansion / contraction direction (longitudinal direction) can be used.
- the length of the coil spring 19 in the expansion / contraction direction is set longer than the length of the coil spring 21 in the expansion / contraction direction.
- the spring force (spring coefficient) of the coil spring 19 is set larger than the spring force (spring coefficient) of the coil springs 28 and 29 in the pre-damper portion 2.
- the seat member 20 is a component part of the main damper portion 3, and is accommodated in the window portions 15a, 16a, and 18a formed in the side plates 15 and 16 and the flange member 18, and the circumferential direction of the window portions 15a, 16a, and 18a. Between the end face of the coil spring and the end of the coil spring 19. Resin can be used for the sheet member 20 in order to reduce wear of the coil spring 19.
- the sheet member 20 has a protrusion 20 a that protrudes in the circumferential direction on the inner peripheral side of the coil spring 19.
- the length of the protrusion 20a of the sheet member 20 on one end side of the coil spring 19 is such that when the side plates 15 and 16 and the flange member 18 are twisted, the other sheet member 20 on the other end side of the coil spring 19 is used.
- the side plates 15 and 16 and the flange member 18 are allowed to be twisted until they contact the other protrusion 20a.
- the coil spring 21 is a component of the main damper portion 3 and is accommodated in the window portions (other window portions of the side plate 15) formed in the side plates 15 and 16 and the flange member 18, the window portion 16b, and the window 18b.
- the sheet members 22 arranged at both ends are in contact with each other.
- the coil spring 21 contracts when the side plates 15 and 16 and the flange member 18 are twisted, and absorbs a shock due to a rotational difference between the side plates 15 and 16 and the flange member 18.
- a coil spring that is straight (extends linearly) in the expansion / contraction direction (longitudinal direction) can be used.
- the length of the coil spring 21 in the expansion / contraction direction is set shorter than the length of the coil spring 19 in the expansion / contraction direction.
- the spring force (spring coefficient) of the coil spring 21 is set larger than the spring force (spring coefficient) of the coil springs 28 and 29 in the pre-damper portion 2.
- the position of the coil spring 21 is shifted from the position of the coil spring 19 toward the outer peripheral side (outside in the radial direction).
- An elastic body 23 is inserted into the inner circumferential space of the coil spring 21.
- the sheet member 22 is a component part of the main damper portion 3, and includes a window portion (another window portion of the side plate 15 not shown) formed on the side plates 15 and 16 and the flange member 18, a window portion 16b, and a window. It is accommodated in the portion 18 b and is disposed between the circumferential end surface of the window portion and the end portion of the coil spring 21. Resin can be used for the sheet member 22 in order to reduce wear of the coil spring 21.
- the sheet member 22 is in contact with the other side of the other side of the coil spring 21 via the elastic body 23 until the side plate 15, 16 and the flange member 18 are set to be allowed to twist.
- the allowable amount of twist between the side plates 15 and 16 and the flange member 18 by the pair of sheet members 22 and the elastic body 23 is the twist between the side plates 15 and 16 and the flange member 18 by the protrusions 20a of the pair of sheet members 20. It can be set to be the same as or smaller than the allowable amount.
- the elastic body 23 is a member made of an elastic material inserted into the inner circumferential space of the coil spring 21.
- the elastic body 23 regulates the twist between the side plates 15 and 16 and the flange member 18 by being sandwiched between the pair of sheet members 22 when the side plates 15 and 16 and the flange member 18 are twisted.
- the ring member 25 is a member formed in a ring shape and is a component part of the pre-damper portion 2.
- the ring member 25 is disposed between the side plate 15 and the ring member 26.
- the ring member 25 is slidably in contact with the side plate 15 on the side plate 15 side surface.
- the ring member 25 has a stepped portion formed on the surface on the ring member 26 side so as not to interfere with the operation of the plate member 27 (including the outer peripheral protrusions 27a and 27b).
- the ring member 25 has two spring accommodating portions 25 a for accommodating the coil springs 28 and two spring accommodating portions 25 b for accommodating the coil springs 29 on the surface on the ring member 26 side.
- the spring accommodating portions 25 a and 25 b are disposed between adjacent coil springs 19 and 21 in the main damper portion 3 and at positions on the inner peripheral side of the coil springs 19 and 21.
- the circumferential end surface of the spring accommodating portion 25a is in contact with the coil spring 28 so as to be able to contact and separate.
- the spring accommodating portion 25 a guides the expansion and contraction of the coil spring 28.
- the two spring accommodating portions 25a are disposed at positions shifted from each other by 180 degrees about the rotation center axis of the ring member 25.
- the end surface in the circumferential direction of the spring accommodating portion 25b is in contact with the coil spring 29 so as to be able to contact and separate.
- the spring accommodating portion 25 b guides the expansion and contraction of the coil spring 29.
- the two spring accommodating portions 25b are disposed at positions shifted from each other by 180 degrees around the rotation center axis of the ring member 25.
- the spring accommodating portion 25b is disposed at a position that is offset by an angle of less than 90 degrees with respect to the nearest spring accommodating portion 25a about the rotation center axis of the ring member 25.
- the circumferential length of the spring accommodating portion 25b is shorter than the circumferential length of the spring accommodating portion 25a.
- the spring accommodating portions 25a and 25b are arranged along the same circumference (the radial positions are the same).
- the ring member 25 is in contact with the ring member 26 at a portion that does not conflict with the operation of the plate member 27 (including the outer peripheral protrusions 27a and 27b) on the surface on the ring member 26 side.
- the ring member 25 has a rotation preventing portion 25 c for preventing rotation with the ring member 26 and the flange member 18.
- the anti-rotation portion 25c is engaged with a recess formed on the outer peripheral surface of the ring member 26 so as not to rotate but to move in the axial direction.
- the rotation preventing portion 25c is engaged (inserted) with a hole formed in the flange member 18 so as not to rotate but to move in the axial direction.
- the ring member 26 is a member formed in a ring shape and is a component part of the pre-damper portion 2.
- the ring member 26 is disposed between the flange member 18 and the ring member 25.
- the ring member 26 is in contact with the flange member 18 on the surface on the flange member 18 side.
- the ring member 26 has a stepped portion formed on the surface on the ring member 25 side so as not to interfere with the operation of the plate member 27 (including the outer peripheral protrusions 27a and 27b).
- the ring member 26 has two spring accommodating portions 25b for accommodating the coil springs 29 and two other spring accommodating portions (not shown) for accommodating the coil springs 28 on the surface on the ring member 25 side.
- the other spring accommodating portion (not shown) and the spring accommodating portion 26b are disposed between adjacent coil springs 19 and 21 in the main damper portion 3 and at a position on the inner peripheral side of the coil springs 19 and 21. ing.
- the circumferential end surfaces of other spring accommodating portions (not shown) are in contact with the coil spring 28 so as to be able to contact and separate.
- Another spring accommodating portion (not shown) guides the expansion and contraction of the coil spring 28.
- Two other spring accommodating portions (not shown) are disposed at positions shifted from each other by 180 degrees around the rotation center axis of the ring member 26.
- the end surface in the circumferential direction of the spring accommodating portion 26b is in contact with the coil spring 29 so as to be able to contact and separate.
- the spring accommodating portion 26 b guides the expansion and contraction of the coil spring 29.
- the two spring accommodating portions 26b are disposed at positions shifted from each other by 180 degrees about the rotation center axis of the ring member 26.
- the spring accommodating portion 26b is disposed at a position shifted from the nearest other spring accommodating portion (not shown) at an angle of less than 90 degrees around the rotation center axis of the ring member 25.
- the circumferential length of the spring accommodating portion 26b is shorter than the circumferential length of another spring accommodating portion (not shown).
- the other spring accommodating portions (not shown) and the spring accommodating portion 26b are arranged along the same circumference (the radial positions are the same).
- the ring member 26 is in contact with the ring member 25 at a portion that does not conflict with the operation of the plate member 27 (including the outer peripheral protrusions 27a and 27b) on the surface on the ring member 25 side.
- the ring member 26 has a concave portion that engages with the rotation preventing portion 25c of the ring member 25 so that the ring member 26 cannot rotate but can move in the axial direction.
- the ring member 26 rotates integrally with the ring member 25 and the flange member 18 by the rotation preventing portion 25c.
- the plate member 27 is an annular and plate-like member disposed on the outer periphery of the outer spline portion 33 b of the hub member 33, and is a component part of the pre-damper portion 2.
- the plate member 27 has two pairs of outer peripheral protrusions 27 a that can abut on both ends of the coil spring 28 and two outer peripheral protrusions 27 b that can abut on one end of the coil spring 29 in the pre-damper portion 2. .
- the circumferential end surfaces of the pair of outer peripheral projections 27a are in contact with the coil spring 28 so as to be able to contact and separate.
- the two pairs of outer peripheral protrusions 27 a are disposed at positions that are shifted from each other by 180 degrees about the rotation center axis of the plate member 27.
- the circumferential end surface of the outer circumferential protrusion 27 b is in contact with the coil spring 29 so as to be able to contact and separate.
- the two outer peripheral projections 27b are disposed at positions shifted from each other by 180 degrees about the rotation center axis of the plate member 27.
- the outer peripheral projection 27b is disposed at a position shifted from the nearest pair of outer peripheral projections 27a by an angle of less than 90 degrees with the rotation center axis of the plate member 27 as the center.
- the plate member 27 has an inner spline portion 27c in which an inner spline is formed at the inner peripheral end.
- the inner spline portion 27 c is engaged with the outer spline portion 33 b of the hub member 33 so as not to rotate.
- the coil spring 28 is a component of the pre-damper portion 2 and is accommodated in a spring accommodating portion 25a formed on the ring members 25 and 26 and another spring accommodating portion (not shown; formed on the ring member 26).
- the pair of outer peripheral projections 27a of the plate member 27 disposed at both ends are in contact with and separated from each other.
- the coil spring 28 contracts when the ring members 25, 26 and the plate member 27 are twisted (twist in both directions), and absorbs a shock due to a rotational difference between the ring members 25, 26 and the plate member 27.
- a coil spring straight (extending linearly) in the expansion / contraction direction (longitudinal direction) can be used.
- the length of the coil spring 28 in the expansion / contraction direction is set longer than the length of the coil spring 29 in the expansion / contraction direction.
- the spring force (spring coefficient) of the coil spring 28 is set to be smaller than the spring force (spring coefficient) of the coil springs 19 and 21 in the main damper portion 3.
- the coil spring 29 is a component of the pre-damper part 2 and is accommodated in the spring accommodating parts 25b and 26b formed in the ring members 25 and 26, and is in contact with and separated from the outer peripheral protrusion part 27b of the plate member 27 disposed at one end. It touches as possible.
- the coil spring 29 contracts when the ring members 25 and 26 and the plate member 27 are twisted in one direction, and absorbs a shock due to a rotational difference between the ring members 25 and 26 and the plate member 27.
- the coil spring 29 does not contract when the ring members 25 and 26 and the plate member 27 are twisted in the opposite directions.
- a coil spring that is straight (extends linearly) in the expansion / contraction direction (longitudinal direction) can be used.
- the length of the coil spring 29 in the expansion / contraction direction is set shorter than the length of the coil spring 28 in the expansion / contraction direction.
- the spring force (spring coefficient) of the coil spring 29 is set to be larger than the spring force (spring coefficient) of the coil springs 19 and 21 in the main damper portion 3.
- the respective positions of the coil spring 29 and the coil spring 28 are arranged along the same circumference (the positions in the radial direction are the same).
- the thrust member 30 is an annular member disposed between the side plate 16 and the flange member 18.
- the thrust member 30 has an anti-rotation portion 30 a that engages with a hole formed in the side plate 16 so as not to rotate but to move in the axial direction.
- the thrust member 30 is urged toward the flange member 18 by a disc spring 31 and is slidably pressed against the flange member 18.
- the thrust member 30 is engaged with the thrust member 35 disposed on the inner periphery so as not to rotate but to move in the axial direction.
- the disc spring 31 is a disc-shaped spring that is disposed between the thrust member 30 and the side plate 16 and biases the thrust member 30 toward the flange member 18.
- the hub member 33 is a member that outputs the rotational power from the damper portions 2 and 3 toward the input shaft 4 of the transmission.
- the hub member 33 has a flange portion 33a extending from a predetermined portion on the outer periphery of the cylindrical portion.
- the hub member 33 is spline-engaged with the input shaft 4 on the inner peripheral surface of the cylindrical portion.
- the hub member 33 supports the side plate 15 via the thrust member 34 on the outer periphery so as to be relatively rotatable, and supports the side plate 16 via the thrust member 35 so as to be relatively rotatable.
- the flange portion 33a has an outer spline portion 33b in which an outer spline is formed on the outer peripheral surface.
- the outer spline portion 33b engages with the inner spline portion 18c of the flange member 18 so that the hub member 33 and the flange member 18 are allowed to twist within a predetermined angle range.
- the outer spline portion 33 b is engaged with the inner spline portion 27 c of the plate member 27 so as not to rotate.
- the flange portion 33b is slidably sandwiched between thrust members 34 and 35.
- the thrust member 34 is an annular member disposed between the side plate 15 and the hub member 33.
- the thrust member 34 is disposed between the side plate 15 and the flange portion 33a in the axial direction, is engaged with the side plate 15 so as not to be relatively rotatable and axially movable, and is slidable with the flange portion 33a. Is in pressure contact.
- the thrust member 34 is also interposed between the side plate 15 and the hub member 33 in the radial direction, and serves as a sliding bearing (bush) for supporting the side plate 15 on the hub member 33 so as to be relatively rotatable.
- the thrust member 35 is an annular member disposed between the side plate 16 and the hub member 33.
- the thrust member 35 is disposed between the disc spring 36 and the flange portion 33a in the axial direction.
- the thrust member 35 is urged toward the flange portion 33a by the disc spring 36 and is slidably pressed against the flange portion 33a. Yes.
- the thrust member 35 is engaged with the side plate 16 so as not to rotate relative to the side plate 16 and to be movable in the axial direction.
- the thrust member 35 is also interposed between the side plate 16 and the hub member 33 in the radial direction, and serves as a sliding bearing (bush) for supporting the side plate 16 on the hub member 33 so as to be relatively rotatable.
- the disc spring 36 is a disc-shaped spring that is disposed between the thrust member 35 and the side plate 16 and biases the thrust member 35 toward the flange portion 33a. The disc spring 36 is locked to the thrust member 35.
- the disc springs 31 and 36 can be simultaneously taken out (co-taken) by press-molding one spring steel material 40 (plate-shaped steel material, or strip-shaped steel material in the case of mass production). it can.
- the end material of the spring steel material 40 reduces to 40a, 40b, 40c, and it can improve the yield of material.
- the disc spring 31 is used for a hysteresis portion having a large diameter.
- the disc spring 36 is used for a hysteresis portion having a small diameter.
- the disc spring 36 is formed with a notch 36a in the inner peripheral portion to reduce the spring load. The notch 36 a can be used to prevent the disc spring 36 from rotating with respect to the thrust member 35.
- the end material may be prevented from coming out between the disc spring 31 ′ and the disc spring 36 ′, and the notch 31 is formed in the inner peripheral portion of the disc spring 31 ′.
- 'A may be formed to lower the spring load, and the spring load may be reduced by forming a notch 36'a on the outer periphery of the disc spring 36'.
- FIG. 4A and 4B are schematic diagrams for explaining the operation of the pre-damper portion in the torsional shock absorber according to Embodiment 1 of the present invention.
- FIG. 4A is a schematic diagram before twisting
- FIG. 4B is a schematic diagram after twisting.
- 5A and 5B are schematic diagrams for explaining the operation of the main damper portion in the torsional shock absorber according to Embodiment 1 of the present invention.
- FIG. 5A is a schematic diagram before twisting
- FIG. 5B is a schematic diagram after twisting.
- FIG. 6 is a graph schematically showing the torque characteristics with respect to the torsion angle of the torsional shock absorbers of Example 1 and Reference Example.
- the torsional shock absorber according to the reference example has the same length of the four coil springs in the main damper portion and the same length of the four coil springs in the pre-damper portion.
- the rotational power of the crankshaft of the engine is as follows: facings 10 and 11, rivets 13 and 14, disk spring 12, connecting member 17, side plates 15 and 16, coil springs 19 and 21, flange member 18, ring members 25 and 26, coil spring 28, plate member 27, and hub member 33 are transmitted in this order, and are transmitted to the input shaft 4 of the transmission.
- the pre-damper portion 2 absorbs the fluctuating torque due to the initial twist, and when the twist is generated and cannot be absorbed by the pre-damper portion 2.
- the main damper unit 3 absorbs the fluctuation torque.
- the pre-damper portion 2 is twisted as shown in FIG. 4 (A) to FIG. 4 (B). That is, until the teeth of the outer spline portion 33b of the hub member 33 come into contact with the teeth of the inner spline portion 18c of the flange member 18 until twisting occurs between the facings 10, 11 and the hub member 33, the coil in the pre-damper portion 2 Only the springs 28 and 29 act. Specifically, only the coil spring 28 acts on the pre-damper portion 2 until the outer peripheral protrusion portion 27b of the plate member 27 contacts the coil spring 29 (see the twist angle 0 to A in FIG. 6), and the outer peripheral protrusion portion 27b becomes the coil.
- the lengths of the four coil springs in the main damper portion are the same, the region between the coil springs in the main damper portion and the inner peripheral side of the coil spring cannot be increased.
- the length of the coil spring in the pre-damper part according to the present invention is shorter than the length of the coil spring 28 in the pre-damper part 2 in the first embodiment, and the torsion angle of the pre-damper part according to the reference example (see the torsion angles 0 to B ′ in FIG. 6).
- the twist angle of the pre-damper portion 2 in the first embodiment becomes smaller.
- the pre-damper portion 2 will not twist.
- the main damper portion 3 is twisted as shown in FIGS. 5 (A) to 5 (B). That is, when the hub member 33 is twisted, the teeth of the outer spline portion 33 b of the hub member 33 press the teeth of the inner spline portion 18 c of the flange member 18, and the torsion is caused between the flange member 18 and the side plates 15 and 16.
- the coil springs 19 and 21 are acted on until the protrusions 20a of the pair of sheet members 20 are brought into contact with each other (or until both of the pair of sheet members 22 are in contact with the elastic body 23) (twist angle B in FIG. 6). To C). At this time, the coil springs 28 and 29 of the pre-damper portion 2 rotate integrally with the flange member 18 while being in the maximum compression state.
- Example 1 has the following effects.
- the coil spring 21 in the main damper part 3 is made shorter than the length of the coil spring 19, and the coil spring 21 is arrange
- the coil springs 19 and 21 can be arranged on the outer circumference in the radial direction by using the sheet members 20 and 22, the coil springs 28 and 29 of the pre-damper part 2 arranged on the inner circumference side of the main damper part 3. Can be arranged close to the radially outer peripheral side, and the length of the coil spring 28 of the pre-damper portion 2 can be set long.
- the length between the window portions 18a and 18b of the flange member 18 can be shortened, and the clutch disk within a limited dimension, the length of the coil spring 19 in the main damper portion 3 can be set long. As a result, the degree of freedom in designing the torsional characteristics (the relationship of the relative rotation angle with respect to the input torque) in the main damper portion 3 is improved.
- the coil springs 28 and 29 having different lengths are used in the pre-damper portion 2 .
- the pre-damper portion is used.
- the torsion angle at 2 can be widened.
- the position of the coil spring 21 is shifted from the position of the coil spring 19 to the outer peripheral side (radially outward)”, in other words, “the coil spring 21 is related to the radial direction of the main damper portion 3. This means that the inner portion of the coil spring 19 is disposed more radially outside the main damper portion 3 than the inner portion of the coil spring 19.
- the main damper portion 3 functions as a first damper portion.
- the pre-damper part 2 functions as a second damper part.
- the side plates 15 and 16 function as a first rotating member.
- the flange member 18, the ring member 25, and the ring member 26 function as a second rotating member.
- the plate member 27 functions as a third rotating member.
- the coil spring 19 functions as a first coil spring.
- the coil spring 28 and the coil spring 29 function as a second coil spring (a 21st coil spring and a 22nd coil spring).
- the coil spring 21 functions as a third coil spring.
- the coil spring 28 and the coil spring 29 are disposed in a power transmission path between the ring members 25 and 26 (flange member 18) and the plate member 27, and the ring members 25 and 26 (flange member 18) and the plate member 27. Absorbs the twist generated between the two.
- FIG. 9 is a partially cutaway plan view schematically showing the configuration of the torque fluctuation absorber according to Embodiment 2 of the present invention.
- FIG. 10 is a cross-sectional view taken along the line XX ′ of FIG. 9 schematically showing the configuration of the torque fluctuation absorber according to Embodiment 2 of the present invention.
- the torque fluctuation absorber 101 includes, for example, between the rotation shaft of an engine and the rotation shaft of a motor generator (a motor generator of a hybrid vehicle, a clutch drum of an automatic transmission, a CVT pulley, or the like). This is a device that absorbs (suppresses) fluctuating torque due to torsion between rotating shafts.
- the torque fluctuation absorbing device 101 has a torsional buffer function, and absorbs (suppresses) the fluctuation torque by a first torque part 102 and a second damper part 104 that absorb the fluctuation torque by a spring force, and a hysteresis torque by friction or the like.
- the torque fluctuation absorbing device 101 includes a stopper portion 107 that restricts excessive twisting of both the damper portions 102 and 104 in order to protect the coil springs 125 and 132 in the damper portions 102 and 104.
- the first damper portion 102 and the second damper portion 104 are arranged in series on the power transmission path. Both the first damper portion 102 and the second damper portion 104 act simultaneously when torsion occurs.
- the first damper unit 102 receives the rotational power of the rotation shaft on the engine side via the limiter unit 106 and outputs it to the second damper unit 104.
- the rotational power of the first damper section 102 is input via the side plates 120 and 121 and output toward the rotating shaft of the motor generator.
- the coil spring 125 is divided into a plurality of locations (2 or 3 locations; 3 locations in FIG. 9) on one circumference radially outside the second damper portion 104. It is arranged.
- the coil spring 132 is divided into a plurality of locations (two or three; three locations in FIG. 9) periodically on one circumference radially inward of the first damper portion 102. It is arranged.
- the coil springs 125 of the first damper portion 102 are arranged so as to be offset from the adjacent coil springs 125 on the same circumference by an angle of 120 degrees (or 180 degrees is acceptable).
- the coil springs 132 of the second damper portion 104 are arranged so as to be shifted from the adjacent coil springs 132 on the same circumference by an angle of 120 degrees (or 180 degrees).
- the periodic position of the coil spring 125 of the first damper portion 102 is set so as to deviate from the periodic position of the coil spring 132 of the second damper portion 104 by a predetermined angle.
- the coil spring 125 of the first damper portion 102 is arranged so as to be shifted from the coil spring 132 of the second damper portion 104 in the vicinity by an angle of 60 degrees (or 90 degrees is acceptable).
- the first hysteresis unit 103 is disposed in parallel with the first damper unit 102 on the power transmission path.
- the first hysteresis portion 103 is disposed on the same circumference as the first damper portion 102, and is provided at a plurality of locations (two or three locations) at positions shifted in the circumferential direction from the coil spring 125 in the first damper portion 102. 9 is divided into three places) and arranged periodically.
- the second hysteresis unit 105 is disposed in parallel with the second damper unit 104 on the power transmission path.
- the second hysteresis part 105 is annularly arranged on one circumference radially inward of the second damper part 104.
- the limiter unit 106 is annularly arranged on the outer circumference in the radial direction from the first damper unit 102 and the first hysteresis unit 103.
- the stopper portion 107 is disposed on the same circumference as the first damper portion 102, and is provided at a plurality of locations (two or three locations; FIG. 9) at positions shifted in the circumferential direction from the coil spring 125 in the first damper portion 102. In this case, the three portions are periodically arranged.
- the stopper portion 107 is disposed on the inner peripheral side with respect to the first hysteresis portion 103.
- the torque fluctuation absorber 101 includes a support plate 110, a cover plate 111, a rivet 112, a pressure plate 113, a disc spring 114, friction materials 115 and 116, a lining plate 117, side plates 120 and 121, and a stopper.
- the support plate 110 is an annular plate member and is a constituent member of the limiter unit 106.
- the support plate 110 is connected to the cover plate 111 at the outer peripheral portion by a plurality of rivets 112.
- the support plate 110 rotates integrally with the cover plate 111.
- the support plate 110 has a bolt hole 110a through which a bolt (not shown) is inserted, and, together with the cover plate 111, a flywheel (not shown) connected to the rotation shaft of the engine by the bolt. Mounted and fixed.
- the support plate 110 is separated from the cover plate 111 at the inner peripheral portion.
- the support plate 110 is in pressure contact with the outer peripheral end portion of the disc spring 114 on the pressure plate 113 side surface.
- the cover plate 111 is an annular plate member and is a constituent member of the limiter unit 106.
- the cover plate 111 is connected to the support plate 110 at the outer peripheral portion by a plurality of rivets 112.
- the cover plate 111 rotates integrally with the support plate 110.
- the cover plate 111 has a bolt hole 111b for inserting a bolt (not shown).
- a flywheel (not shown) connected to the rotation shaft of the engine by the bolt.
- the cover plate 111 is separated from the support plate 110 at the inner peripheral portion.
- the cover plate 111 has a notch 111a that engages with the protrusion 113a of the pressure plate 113 so as to be axially movable and non-rotatable.
- the cover plate 111 is slidably pressed against the friction material 115.
- the pressure plate 113 is an annular plate member and is a constituent member of the limiter unit 106.
- the pressure plate 113 is an annular member disposed between the disc spring 114 and the friction material 115.
- the pressure plate 113 has a plurality of protrusions 113a protruding to the outer peripheral side at the outer peripheral end.
- the protrusion 113a engages with the notch 111a of the cover plate 111 so as to be axially movable and non-rotatable.
- the pressure plate 113 is urged toward the friction material 115 by a disc spring 114 and is slidably pressed against the friction material 115.
- the disc spring 114 is an annular disc-shaped spring disposed between the cover plate 111 and the pressure plate 113, and is a constituent member of the limiter unit 106.
- the disc spring 114 biases the pressure plate 113 toward the friction material 115 side.
- the friction material 115 is an annular member disposed between the pressure plate 113 and the lining plate 117, and is a constituent member of the limiter unit 106.
- the friction material 115 is fixedly attached to the lining plate 117 by rivets (not shown) or the like.
- the friction material 115 is slidably pressed against the pressure plate 113.
- the friction material 116 is an annular member disposed between the lining plate 117 and the cover plate 111, and is a constituent member of the limiter unit 106.
- the friction material 116 is attached and fixed to the lining plate 117 by rivets (not shown) or the like.
- the friction material 116 is slidably pressed against the cover plate 111.
- the lining plate 117 is an annular plate member and is a constituent member of the first damper portion 102, the first hysteresis portion 103, and the limiter portion 106.
- the lining plate 117 is disposed between the side plates 120 and 121 and separated from the side plates 120 and 121.
- the outer peripheral part is arranged between the friction materials 115 and 116 as the limiter portion 106, and the friction materials 115 and 116 are fixed by a rivet (not shown) or the like.
- the lining plate 117 rotates integrally with the friction materials 115 and 116.
- the lining plate 117 is disposed between the thrust members 126 and 127 as the first hysteresis portion 103 on the inner peripheral side with respect to the limiter portion 106, and is slidably held between the thrust members 126 and 127.
- the lining plate 117 has a plurality of places (three places in FIG. 9) sandwiched between the thrust members 126 and 127.
- the lining plate 117 has, as the first damper portion 102, a plurality of protrusions 117a that form a pair protruding from the inner peripheral end surface to the inner peripheral side at a portion shifted in the circumferential direction from the first hysteresis portion 103, A window 117b for accommodating the sheet member 124 and the coil spring 125 is provided between the pair of protrusions 117a.
- the window portion 117b is in contact with the sheet member 124 at an end face in the circumferential direction so as to be able to contact and separate.
- the projecting portion 117a also functions as a component of the stopper portion 107, and prevents excessive twisting (twisting between the lining plate 117 and the side plates 120 and 121) at the first damper portion 102 at the circumferential end surface.
- the stopper member 122 can be contacted and separated.
- the inner peripheral end surface excluding the protruding portion 117 a is guided by the outer peripheral surface of the stopper member 122, so that the radial movement is restricted and the circumferential movement is guided.
- the side plate 120 is an annular plate member and is a constituent member of the first damper portion 102, the first hysteresis portion 103, the second damper portion 104, and the second hysteresis portion 105.
- the side plate 120 transmits the rotational power from the first damper portion 102 and the first hysteresis portion 103 to the second damper portion 104 and the second hysteresis portion 105.
- the side plate 120 is disposed so as to be separated from the side plate 121 via the stopper member 122.
- the side plate 120 is connected to the side plate 121 together with the stopper member 122 by a rivet 123.
- the side plate 120 rotates integrally with the stopper member 122 and the side plate 121.
- the side plate 120 includes a plurality of anti-rotation portions 126a (protrusions) in the thrust member 126 for each of a plurality (three in FIG. 9) of thrust members 126 at the first hysteresis portion 103 on the outer peripheral side of the stopper member 122. It has a plurality of holes that are axially movable and not circumferentially movable. The side plate 120 has a plurality of holes (three in FIG. 9).
- the side plate 120 has a window portion 120a for accommodating the sheet member 124 and the coil spring 125 at the first damper portion 102 that is shifted in the circumferential direction from the first hysteresis portion 103, and the circumferential direction of the window portion 120a The end surface is in contact with the sheet member 124 so as to be able to contact and separate.
- the side plate 120 has a window part 120b for accommodating the sheet member 131 and the coil spring 132 in the second damper part 104 on the inner peripheral side from the first damper part 102, and the circumferential direction of the window part 120b The end surface is in contact with the sheet member 131 so as to be able to contact and separate.
- the side plate 120 engages the thrust member 134 in an axially movable and non-rotatable manner at the second hysteresis portion 105 on the inner peripheral side of the second damper portion 104.
- the side plate 120 is rotatably supported by the hub member 130 via a thrust member 134 at the inner peripheral end portion.
- the side plate 121 is an annular plate member, and is a constituent member of the first damper portion 102, the first hysteresis portion 103, the second damper portion 104, and the second hysteresis portion 105.
- the side plate 121 transmits the rotational power from the first damper portion 102 and the first hysteresis portion 103 to the second damper portion 104 and the second hysteresis portion 105.
- the side plate 121 is disposed away from the side plate 120 via the stopper member 122.
- the side plate 121 is connected to the side plate 120 together with the stopper member 122 by a rivet 123.
- the side plate 121 rotates integrally with the stopper member 122 and the side plate 120.
- the side plate 121 includes a plurality of anti-rotation portions 127a (protrusions) in the thrust member 127 for each of a plurality of (three in FIG. 9) thrust members 127 at the first hysteresis portion 103 on the outer peripheral side of the stopper member 122. It has a plurality of holes that are axially movable and not circumferentially movable. The side plate 121 has a plurality of locations (three locations in FIG. 9) of the pair of holes.
- the side plate 121 includes a window 121a for accommodating the sheet member 124 and the coil spring 125 in the first damper portion 102 that is displaced in the circumferential direction from the first hysteresis portion 103, and the circumferential direction of the window 121a
- the end surface is in contact with the sheet member 124 so as to be able to contact and separate.
- the side plate 121 has a window portion 121b for accommodating the sheet member 131 and the coil spring 132 in the second damper portion 104 on the inner circumferential side from the first damper portion 102, and the circumferential direction of the window portion 121b.
- the end surface is in contact with the sheet member 131 so as to be able to contact and separate.
- the side plate 121 engages the thrust member 135 in an axially movable and non-rotatable manner at the second hysteresis portion 105 on the inner peripheral side of the second damper portion 104 and supports the outer peripheral end portion of the disc spring 136. .
- the side plate 121 is rotatably supported by the hub member 130 via a thrust member 135 at the inner peripheral end.
- the stopper member 122 is a block-shaped member and is a constituent member of the stopper portion 107.
- a plurality of stopper members 122 are arranged between the side plates 120 and 121 (three in FIG. 9) on the inner peripheral side of the thrust members 126 and 127 of the first hysteresis portion 103, and a plurality of stopper members 122 are provided for each stopper member 122.
- the rivets 123 (two in FIG. 9) are connected to the side plates 120 and 121.
- the stopper member 122 is formed on the lining plate 117 when the first damper portion 102 is twisted (twisted between the lining plate 117 and the side plates 120 and 121) at a portion near the outer periphery of the circumferential end surface.
- Excessive twisting of the first damper portion 102 is restricted by coming into contact with the protruding portion 117a.
- the stopper member 122 is twisted (twisted between the hub member 130 and the side plates 120, 121) at the inner end portion of the circumferential end surface, the hub member 130 is twisted.
- Excessive twisting of the second damper portion 104 is restricted by coming into contact with the protruding portion 130d.
- the stopper member 122 regulates the movement of the lining plate 117 in the radial direction and guides the movement of the lining plate 117 in the circumferential direction at the end face on the outer peripheral side.
- the stopper member 122 regulates the radial movement of the flange portion 130b of the hub member 130 and guides the circumferential movement of the flange portion 130b of the hub member 130 at the end surface on the inner circumferential side.
- the rivet 123 is a member for connecting the side plates 120 and 121 and the stopper member 122.
- a plurality of rivets 123 (two in FIG. 9) are assigned to one stopper member 122. Accordingly, the stopper member 122 can be coupled to the side plates 120 and 121 without the stopper member 122 swinging with respect to the side plates 120 and 121.
- the sheet member 124 is a component of the first damper portion 102 and is accommodated in the window portions 117b, 120a, and 121a formed in the lining plate 117 and the side plates 120 and 121, and the periphery of the window portions 117b, 120a, and 121a. It is arranged between the end face in the direction and the end of the coil spring 125. Resin can be used for the sheet member 124 in order to reduce wear of the coil spring 125.
- the coil spring 125 is a component of the first damper portion 102, and is housed in the window portions 117b, 120a, and 121a formed in the lining plate 117 and the side plates 120 and 121, and the sheet members 124 disposed on both ends. It touches.
- the coil spring 125 contracts when the lining plate 117 and the side plates 120 and 121 rotate relative to each other, and absorbs a shock due to a rotational difference between the lining plate 117 and the side plates 120 and 121.
- the coil spring 125 has a coil length, an outer diameter, a wire diameter, and a weight set according to the required characteristics of the vehicle in relation to the coil spring 132 of the second damper portion 104. In order to suppress the change in rigidity in the normal range below the torque as much as possible, a lighter one having an outer diameter smaller than that of the coil spring 132 is used.
- the thrust member 126 is a block-like member and is a component part of the first hysteresis portion 103.
- the thrust member 126 is disposed between the lining plate 117 and the side plate 120.
- the thrust member 126 is disposed at a position shifted in the circumferential direction from the coil spring 125 of the first damper portion 102.
- a plurality of thrust members 126 are arranged so as to correspond to the thrust member 127.
- the thrust member 126 has a plurality (two in FIG. 9) of detents 126a that engage with the side plate 120 so as to be movable in the axial direction but not in the circumferential direction.
- the thrust member 126 is slidably in contact with the lining plate 117.
- the thrust member 126 is pressed against the lining plate 117 side by the spring action of the side plate 120. By doing so, the lining plate 117 can be sandwiched between the thrust members 126 and 127 without using a disc spring in the first hysteresis section 103.
- the thrust member 127 is a block-like member and is a component part of the first hysteresis portion 103.
- the thrust member 127 is disposed between the lining plate 117 and the side plate 121.
- the thrust member 127 is disposed at a position shifted in the circumferential direction from the coil spring 125 of the first damper portion 102.
- a plurality of thrust members 127 are arranged so as to correspond to the thrust member 126.
- the thrust member 127 has a plurality (two in FIG. 9) of detents 127a that engage with the side plate 121 so as to be axially movable and immovable in the circumferential direction.
- the thrust member 127 is slidably in contact with the lining plate 117.
- the thrust member 127 is pressed against the lining plate 117 by the spring action of the side plate 121. By doing so, the lining plate 117 can be sandwiched between the thrust members 126 and 127 without using a disc spring in the first hysteresis section 103.
- the hub member 130 is a member having a flange portion 130b extending from a predetermined portion on the outer periphery of the cylindrical hub portion 130a to the outer peripheral side, and is a constituent member of the second damper portion 104 and the second hysteresis portion 105.
- the hub member 130 outputs the rotational power of the second damper unit 104 and the second hysteresis unit 105.
- the hub portion 130a has an inner spline formed on the inner peripheral surface for connection (engagement) with the rotation shaft (outer spline) of the motor generator.
- the hub part 130a rotatably supports the side plate 120 via a thrust member 134.
- the hub portion 130a rotatably supports the side plate 121 via a thrust member 135.
- the flange portion 130b has a plurality of protrusions 130d that protrude outward from the outer peripheral end surface.
- the protruding portion 130d functions as a constituent part of the stopper portion 107, and a stopper that prevents excessive twisting (twisting between the hub member 130 and the side plates 120 and 121) in the second damper portion 104 at the circumferential end surface.
- the member 122 can be contacted and separated.
- the flange portion 130b is guided by the outer peripheral end surface thereof by the inner peripheral surface of the stopper member 122, so that the radial movement is restricted and the circumferential movement is guided.
- the flange portion 130 b includes a window portion 130 c for accommodating the sheet member 131 and the coil spring 132 at a portion on the inner peripheral side of the stopper portion 107 as the second damper portion 104.
- the window part 130c is in contact with the sheet member 131 at the end face in the circumferential direction.
- the flange portion 130b is slidably held by thrust members 134 and 135 on the axial surface of the second hysteresis portion 105 on the inner peripheral side of the second damper portion 104.
- the sheet member 131 is a component part of the second damper unit 104.
- the sheet member 131 is accommodated in the window portions 120a, 121a, and 130c formed in the side plates 120 and 121 and the flange portion 130b of the hub member 130, and the circumferential end surfaces of the windows 120a, 121a, and 130c and the coil springs. It is arranged between the end portions of 132. Resin can be used for the sheet member 131 in order to reduce wear of the coil spring 132.
- the coil spring 132 is a component part of the second damper unit 104.
- the coil spring 132 is housed in the side plates 120 and 121 and the window portions 120a, 121a and 130c formed in the flange portion 130b of the hub member 130, and is in contact with the sheet members 131 disposed at both ends.
- the coil spring 132 contracts when the side plates 120 and 121 and the hub member 130 rotate relative to each other, and absorbs a shock due to a rotational difference between the side plates 120 and 121 and the hub member 130.
- the coil spring 132 has a coil length, an outer diameter, a wire diameter, and a weight set according to the required characteristics of the vehicle in relation to the coil spring 125 of the first damper portion 102. In order to suppress the change in rigidity in the normal range as much as possible, the outer diameter is larger and heavier than the coil spring 125 of the first damper portion 102.
- the floating elastic member 133 is an elastic member for absorbing a shock when the twist of the second damper portion 104 is locked by the stopper portion 107 (the stopper member 122 and the protruding portion 130d of the hub member 130 abut). is there.
- the floating elastic member 133 is arranged in a floating state inside the spiral of the coil spring 132.
- the floating elastic member 133 is sandwiched between the pair of sheet members 131 when the pair of sheet members 131 disposed at both ends of the coil spring 132 approach each other due to the twist of the second damper portion 104, whereby the second damper The shock when the twist of the portion 104 is locked by the stopper portion 107 is absorbed.
- the thrust member 134 is an annular member and is a component of the second hysteresis unit 105.
- the thrust member 134 is disposed between the side plate 120 and the flange portion 130 b of the hub member 130.
- the thrust member 134 is engaged with the side plate 120 so as to be axially movable and non-rotatable.
- the thrust member 134 is slidably pressed against the flange portion 130b.
- the thrust member 135 is an annular member and is a component part of the second hysteresis unit 105.
- the thrust member 135 is disposed between the side plate 121 and the flange portion 130 b of the hub member 130.
- the thrust member 135 is engaged with the side plate 121 and the disc spring 136 so as to be axially movable and non-rotatable.
- the thrust member 135 is urged by a disc spring 136 from the side plate 121 side, and is slidably pressed against the flange portion 130b.
- the disc spring 136 is a component of the second hysteresis portion 105, and is disposed between the thrust member 135 and the side plate 121, and biases the thrust member 135 toward the flange portion 130 b of the hub member 130. It is.
- the size of the apparatus in the axial direction is not increased by adopting a configuration in which the lining plate 117 is sandwiched by the thrust members 126 and 127 without using a disc spring in the first hysteresis portion 103.
- the first hysteresis portion 103 is disposed on the same circumference as the first damper portion 102, and at a plurality of locations (two or three locations) at positions shifted in the circumferential direction from the coil spring 125 in the first damper portion 102; In FIG. 9, it is not necessary to increase the size of the apparatus in the radial direction by arranging it in three places.
- the protrusion 113a provided on the outer periphery of the pressure plate 113 is engaged with the notch 111a of the cover plate 111 (or the support plate 110), so that the axial size is not increased. That's okay.
- the twist stoppers of the first damper portion 102 and the second damper portion 104 are satisfied by one stopper portion 107, and the space and cost of the apparatus can be reduced. Further, when the torsion of the first damper portion 102 and the second damper portion 104 is locked by the stopper portion 107, the stopper load related to the stopper member 122 that locks the protruding portion 117a of the lining plate 117 of the first damper portion 102. Since the direction and the stopper load direction related to the stopper member 122 locking the protrusion 130d of the hub member 130 of the second damper portion 104 are opposite to each other, it is possible to reduce the stress related to the stopper member 122.
- the degree of freedom in designing the stopper portion 107 increases. Moreover, the stopper part 107 is arrange
- the second viewpoint of the present invention includes the following “background art” and “problems to be solved by the invention”.
- the torsional shock absorber is provided, for example, in a clutch disposed on a power transmission path between the engine and the transmission.
- a torsional shock absorber is configured such that when a clutch is engaged, a torsion between a rotating member that transmits rotational torque from the engine and another rotating member that transmits rotational torque to the transmission is a coil spring or the like. Is used to absorb (suppress) fluctuating torque between the engine and the transmission.
- a torsional shock absorber is limited in size when mounted on a vehicle. Among these limited dimensions, in the conventional torsional shock absorber, in order to improve the damping performance, a device for widening the torsion angle between the rotating members is made.
- Patent Document 3 in a torsional cushioning disk, a flanged hub and a plate disposed around the hub of the flanged hub so as to face the flange of the flanged hub are connected to the periphery of the disk via a torsion member.
- one side surface disposed between the torsion member, the plate and the flanged hub contacts the disk circumferential end surface of the torsion member and the other side surface
- a sheet having a sheet on which the guide portion is formed is disclosed.
- the torsion member (coil spring) is arranged in a notch formed to the outside in the radial direction of the flange, and the length of the torsion member is set to be relatively long, so that the flanged hub and the plate The torsion angle between them is widened.
- a first part having an input part and an output part, and having two dampers connected in series that is, a power accumulator having a small rigidity, between the input part and the output part.
- the torsional cushioning disk described in Patent Document 3 has a configuration in which the torsion member can be disposed at a radially outer position.
- the relative rotation angle between the flanged hub and the plate is determined by the diaphragm portion (two sheets). The portion that is drawn in the vicinity of the plate connecting pin) is regulated by contacting the circumferential end of the notch of the flange (another notch formed in a portion of the flange that accommodates the torsion member). Therefore, the maximum relative rotation angle between the flanged hub and the plate must be regulated by the circumferential space of the flange notch.
- the circumferential length corresponding to the relative rotation angle is required at the portion of the flange between the notches that accommodates the torsion member, and the length of the torsion member accommodated in the notch can be set sufficiently long. Therefore, it is difficult to widen the twist angle.
- the main problem of the present invention (problem according to the second viewpoint) is to provide a twist buffer which is advantageous for widening the twist angle.
- the problem according to the second viewpoint is solved by the torsional shock absorber (torque fluctuation absorbing apparatus) according to the second aspect of the present invention.
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Abstract
Description
本発明は、日本国特許出願:特願2010-214348号(2010年9月24日出願)、及び、特願2010-163599号(2010年7月21日出願)の優先権主張に基づくものであり、同出願の全記載内容は引用をもって本書に組み込み記載されているものとする。
本発明は、回転軸間の変動トルクを吸収するトルク変動吸収装置に関する。
しかしながら、従来技術のトルク変動吸収装置において、複数のダンパ部を単に径方向にずれて配設した場合では、装置の径方向のサイズが拡大してしまう。また、径方向のサイズの拡大を回避するために、複数のダンパ部を軸方向にずれて配設した場合では、装置の軸方向のサイズが拡大してしまう。
3個の前記第1コイルスプリングは、回転軸を中心として互いに120度の角度でずれた位置に配置され、3つの前記第2コイルスプリングは、前記回転軸を中心として互いに120度の角度でずれた位置に配置され、前記第2コイルスプリングは、前記回転軸を中心として前記第1コイルスプリングと60度の角度でずれた位置に配置されていることが好ましい。
捩れ緩衝装置は、例えば、エンジンと変速機との間の動力伝達経路上に配設されたクラッチに設けられている。このような捩れ緩衝装置は、クラッチが係合しているときに、エンジンからの回転トルクが伝達される回転部材と、変速機に回転トルクを伝達する他の回転部材との捩れをコイルスプリング等を用いて緩衝することにより、エンジンと変速機との間の変動トルクを吸収(抑制)する。捩れ緩衝装置は、車両に搭載するに当たって寸法が制限される。こうした制限された寸法の中で、従来の捩れ緩衝装置においては、減衰性能を向上させるために、回転部材間の捩れ角を広角化する工夫がなされている。
しかしながら、特許文献3に記載の捩じれ緩衝ディスクでは、トーション部材を径方向外側の位置に配置できる構成となっているが、フランジ付ハブとプレートの相対回転角度は、プレートの絞り部(2枚のプレート連結するピンの近傍において絞り加工された部分)がフランジの切欠(フランジにおけるトーション部材を収容する切欠間の部位に形成された別の切欠)の周方向端部に当接させることで規制されるため、フランジ付ハブとプレートとの最大相対回転角度は、フランジの切欠の周方向スペースで規制しなければならない。そのため、フランジにおけるトーション部材を収容する切欠間の部位には相対回転角度に相当するだけの周方向長さが必要となり、切欠に収容されるトーション部材の長さを十分に長く設定することができず、捩れ角の広角化が困難になる。
2 プリダンパ部(第1ダンパ部)
3 メインダンパ部(第2ダンパ部)
4 入力軸
10、11 フェーシング
12 ディスクスプリング
13、14 リベット
15 サイドプレート(第4回転部材)
15a 窓部
16 サイドプレート(第4回転部材)
16a、16b 窓部
17 連結部材
18 フランジ部材(第3回転部材)
18a、18b 窓部
18c 内スプライン部
19 コイルスプリング(第2コイルスプリング)
20 シート部材(一対のシート部材)
20a 突起部
21 コイルスプリング(第3コイルスプリング)
22 シート部材(一対の他のシート部材)
23 弾性体
25 リング部材(第2回転部材)
25a、25b スプリング収容部
25c 回り止め部
26 リング部材(第2回転部材)
26b スプリング収容部
27 プレート部材(第1回転部材)
27a、27b 外周突起部
27c 内スプライン部
28 コイルスプリング(第1コイルスプリング、第11コイルスプリング)
29 コイルスプリング(第1コイルスプリング、第12コイルスプリング)
30 スラスト部材
30a 回り止め部
31、31´ 皿ばね
31´a 切欠部
33 ハブ部材(第5回転部材)
33a フランジ部
33b 外スプライン部
34、35 スラスト部材
36、36´ 皿ばね
36a、36´a 切欠部
40 バネ鋼材
40a、40b、40c 端材
101 トルク変動吸収装置
102 第1ダンパ部
103 第1ヒステリシス部
104 第2ダンパ部
105 第2ヒステリシス部
106 リミッタ部
107 ストッパ部
110 サポートプレート
110a ボルト用穴部
111 カバープレート
111a 切欠部
111b ボルト用穴部
112 リベット
113 プレッシャプレート
113a 突起部(第3突起部)
114 皿ばね
115、116 摩擦材
117 ライニングプレート(第1回転部材)
117a 突起部(第1突起部)
117b 窓部
120、121 サイドプレート(第2回転部材)
120a、120b、121a、121b 窓部
122 ストッパ部材
123 リベット
124 シート部材
125 コイルスプリング(第1コイルスプリング)
126、127 スラスト部材
126a、127a 回り止め部
130 ハブ部材(第3回転部材)
130a ハブ部
130b フランジ部
130c 窓部
130d 突起部(第2突起部)
131 シート部材
132 コイルスプリング(第2コイルスプリング)
133 浮遊弾性部材
134、135 スラスト部材
136 皿ばね
Claims (19)
- 第1回転部材と第2回転部材との間の捩れによる変動トルクを吸収する第1ダンパ部と、
前記第2回転部材と第3回転部材との間の捩れによる変動トルクを吸収する第2ダンパ部と、
を備え、
前記第1ダンパ部は、周方向に沿って第1の所定間隔おきに配設された複数の第1コイルスプリングを有するとともに、前記複数の第1コイルスプリングにより前記第1回転部材と前記第2回転部材との間の捩れを緩衝し、
前記第2ダンパ部は、前記第1ダンパ部よりも径方向内側に配されるとともに、周方向に沿って第2の所定間隔おきに配設された複数の第2コイルスプリングを有し、かつ、前記複数の第2コイルスプリングにより前記第2回転部材と前記第3回転部材との間の捩れを緩衝し、
前記複数の第1コイルスプリングの位置は、前記複数の第2コイルスプリングの位置から周方向において所定角度ずれているトルク変動吸収装置。 - 前記第1ダンパ部は、2個又は3個の前記第1コイルスプリングを有し、
前記第2ダンパ部は、2個又は3個の前記第2コイルスプリングを有する請求項1記載のトルク変動吸収装置。 - 前記第1ダンパ部は、3個の前記第1コイルスプリングを有し、
前記第2ダンパ部は、3個の前記第2コイルスプリングを有し、
3個の前記第1コイルスプリングは、回転軸を中心として互いに120度の角度でずれた位置に配置され、
3つの前記第2コイルスプリングは、前記回転軸を中心として互いに120度の角度でずれた位置に配置され、
前記第2コイルスプリングは、前記回転軸を中心として前記第1コイルスプリングと60度の角度でずれた位置に配置されている請求項1記載のトルク変動吸収装置。 - 前記第2コイルスプリングは、隣り合う前記第1コイルスプリング間であって、前記第1コイルスプリングよりも径方向内側に配置されている請求項1乃至3のいずれか一に記載のトルク変動吸収装置。
- 前記第2コイルスプリングの径は、前記第1コイルスプリングの径よりも大きい請求項1乃至4のいずれか一に記載のトルク変動吸収装置。
- 前記第2コイルスプリングは、前記第1コイルスプリングよりも重い請求項1乃至5のいずれか一に記載のトルク変動吸収装置。
- 前記第1回転部材と前記第2回転部材との間の捩れによる変動トルクを吸収する第1ヒステリシス部を備え、
前記第2回転部材は、前記第1回転部材から軸方向の両側に配設され、
前記第1ヒステリシス部は、前記第1ダンパ部と同一円周上にて複数個所に分かれて周期的に配設されるとともに、前記第1ダンパ部における前記第1コイルスプリングから周方向にずれた位置に配設された複数のスラスト部材を有し、
前記複数のスラスト部材は、前記第1回転部材と前記第2回転部材との間に配されるとともに、前記第2回転部材に回り止めされ、かつ、前記第2回転部材のバネ作用によって前記第1回転部材側に付勢され、
前記第1回転部材は、前記複数のスラスト部材によってスライド可能に挟持される請求項1乃至6のいずれか一に記載のトルク変動吸収装置。 - 前記第1ダンパ部及び前記第2ダンパ部の両方の過剰な捩れを規制するストッパ部を備え、
前記ストッパ部は、前記第2回転部材に固定され、
前記第1回転部材は、径方向内側に形成されるとともに前記第1回転部材と前記第2回転部材との間の捩れにより前記ストッパ部の周方向の端面に当接可能な第1突起部を有し、
前記第3回転部材は、径方向外側に形成されるとともに前記第3回転部材と前記第2回転部材との間の捩れにより前記第1突起部よりも径方向内側で前記ストッパ部の周方向の端面に当接可能な第2突起部を有する請求項1乃至7のいずれか一に記載のトルク変動吸収装置。 - 前記ストッパ部は、前記第1ダンパ部と同一円周上にて複数個所に分かれて周期的に配設されるとともに、前記第1ダンパ部における前記第1コイルスプリングから周方向にずれた位置に配設される請求項8記載のトルク変動吸収装置。
- 前記ストッパ部は、前記スラスト部材よりも径方向内側に配設される請求項9記載のトルク変動吸収装置。
- 少なくとも前記第1ダンパ部及び前記第2ダンパ部で変動トルクを吸収できなくなったときに滑りを生ずるリミッタ部を備え、
前記リミッタ部は、
前記第1回転部材の両側に固定された2つの摩擦材と、
前記摩擦材の一方とスライド可能に圧接するカバープレートと、
前記摩擦材の他方とスライド可能に圧接するプレッシャプレートと、
前記プレッシャプレートを前記カバープレート側に付勢する皿ばねと、
前記皿ばねを支持するサポートプレートと、
前記カバープレートと前記サポートプレートを連結するリベットと、
を備え、
前記プレッシャプレートは、外周端面において外周側に突出した第3突起部を有し、
前記カバープレート及びサポートプレートの一方又は両方は、前記第3突起部を軸方向移動可能かつ回転不能に係合する切欠部を有する請求項1乃至10のいずれか一に記載のトルク変動吸収装置。 - 前記第1ダンパ部は、長さの異なる第1コイルスプリングと第3コイルスプリングとを有するとともに、前記第1コイルスプリング及び前記第3コイルスプリングは、前記第1ダンパ部の周方向に沿って、交互に配置され、前記第1コイルスプリング及び前記第3コイルスプリングにより前記第1回転部材と前記第2回転部材との間の捩れが緩衝され、
前記第3コイルスプリングは、前記第1コイルスプリングよりも長さが短く、かつ、前記第1ダンパ部の径方向に関して、前記第3コイルスプリングの内側の部分は、前記第1コイルスプリングの内側の部分よりも前記第1ダンパ部の径方向外側に配置され、
前記第2コイルスプリングは、前記第2ダンパ部の周方向に関して、隣り合う前記第1コイルスプリングと前記第3コイルスプリングとの間であり、かつ、前記第1コイルスプリング及び前記第3コイルスプリングよりも前記第1ダンパ部の径方向内側に配置されている請求項1記載のトルク変動吸収装置。 - 前記第2ダンパ部は、4つの前記第2コイルスプリングを有し、
前記第1ダンパ部は、2つの前記第1コイルスプリング、及び2つの前記第3コイルスプリングを有し、
2つの前記第1コイルスプリングは、回転軸を中心として互いに180度ずれた位置に配置され、
2つの前記第3コイルスプリングは、前記回転軸を中心として互いに180度ずれた位置に配置され、
前記第1コイルスプリングは、前記回転軸を中心として前記第3コイルスプリングと90度ずれた位置に配置されている請求項12記載のトルク変動吸収装置。 - 前記第2回転部材は、前記第2コイルスプリングを支持するリング部材と、前記リング部材に係合するフランジ部材とを備え、
前記第3回転部材は、前記第2コイルスプリングに接離可能に接するプレート部材を備える請求項12又は13記載のトルク変動吸収装置。 - 前記第2コイルスプリングは、前記リング部材と前記プレート部材との間に配置される請求項14記載のトルク変動吸収装置。
- 前記第1コイルスプリングの両端に配置されるとともに、前記第1回転部材と前記第2回転部材との間に捩れが生じたときに前記第1回転部材及び前記第2回転部材の一方に保持される一対のシート部材を備え、
各シート部材は、前記第1コイルスプリング内に突出した突起部を有し、前記第1回転部材と前記第2回転部材との間に捩れが生じたとき、前記突起部同士が当接するまで前記第1回転部材と前記第2回転部材との間の捩れが許容される請求項11乃至15のいずれか一に記載のトルク変動吸収装置。 - 前記第3コイルスプリングの長手方向両端部に配置されるとともに、前記第1回転部材と前記第2回転部材との間に捩れが生じたときに前記第1回転部材及び前記第2回転部材の一方に保持される一対の他のシート部材と、
前記第3コイルスプリング内に配された弾性体と、
を備え、
前記弾性体は、前記第1回転部材と前記第2回転部材との間に捩れが生じたとき前記一対の他のシート部材と当接するまで前記第1回転部材と前記第2回転部材との間の捩れが許容される請求項11乃至16のいずれか一に記載のトルク変動吸収装置。 - 複数の前記第2コイルスプリングは、長さの異なる第21コイルスプリング及び第22コイルスプリングとからなり、
前記第22コイルスプリングは、前記第21コイルスプリングよりも長さが短く、
前記第2ダンパ部は、前記第2回転部材と前記第3回転部材との間の初期の捩れでは前記第21コイルスプリングのみが作用し、前記第2回転部材と前記第3回転部材との間の後期の捩れでは前記第21コイルスプリング及び前記第22コイルスプリングが作用する請求項11乃至17のいずれか一に記載のトルク変動吸収装置。 - 前記第2コイルスプリングは、前記第2コイルスプリングの長手方向に関して、直線状に延びる請求項11乃至18のいずれか一に記載のトルク変動吸収装置。
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JP2012525381A JP5376061B2 (ja) | 2010-07-21 | 2011-07-14 | トルク変動吸収装置 |
CN2011900006243U CN203214761U (zh) | 2010-07-21 | 2011-07-14 | 扭矩变动吸收装置 |
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Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR20150010986A (ko) * | 2012-05-14 | 2015-01-29 | 클러치 인더스트리즈 피티와이 엘티디 | 마찰 클러치 조립체 |
CN112343963A (zh) * | 2019-08-07 | 2021-02-09 | 法雷奥凯佩科液力变矩器(南京)有限公司 | 用于液力扭矩联接装置的扭转振动阻尼系统 |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP6559399B2 (ja) * | 2014-02-27 | 2019-08-14 | 株式会社エクセディ | ダンパー装置 |
JP6543919B2 (ja) * | 2014-11-25 | 2019-07-17 | アイシン精機株式会社 | ダンパ装置 |
KR102005167B1 (ko) * | 2015-03-31 | 2019-07-29 | 아이신에이더블류 가부시키가이샤 | 댐퍼 장치 |
DE102019109245A1 (de) * | 2019-04-09 | 2020-10-15 | Schaeffler Technologies AG & Co. KG | Schwungradanordnung und Antriebsstrang |
JP7314601B2 (ja) | 2019-04-24 | 2023-07-26 | 株式会社アイシン | ダンパ装置 |
TR201914875A2 (tr) * | 2019-09-30 | 2021-04-21 | Valeo Otomotiv Sanayi Ve Ticaret A S | Bi̇r tork li̇mi̇törü |
Citations (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6081520A (ja) * | 1983-10-12 | 1985-05-09 | Shiyouyou Giken Kogyo Kk | 緩衝伝動装置 |
JPH0842594A (ja) | 1994-06-30 | 1996-02-13 | Luk Lamellen & Kupplungsbau Gmbh | ねじり振動ダンパ |
JPH0842591A (ja) | 1994-07-29 | 1996-02-13 | Aisin Seiki Co Ltd | 捩じれ緩衝ディスク |
JPH09100842A (ja) * | 1984-11-23 | 1997-04-15 | Luk Lamellen & Kupplungsbau Gmbh | クラッチディスク |
DE19753557A1 (de) | 1996-12-11 | 1998-06-18 | Luk Lamellen & Kupplungsbau | Torsionsschwingungsdämpfer |
JP2000310283A (ja) * | 1999-04-27 | 2000-11-07 | Exedy Corp | ダンパー機構及びダンパーディスク組立体 |
JP2006144884A (ja) * | 2004-11-18 | 2006-06-08 | Exedy Corp | クラッチディスク組立体 |
JP2009133378A (ja) * | 2007-11-29 | 2009-06-18 | Toyota Motor Corp | トルク変動吸収装置 |
JP2009293652A (ja) | 2008-06-03 | 2009-12-17 | Aisin Seiki Co Ltd | トルク変動吸収装置 |
JP2010038312A (ja) | 2008-08-07 | 2010-02-18 | Aisin Seiki Co Ltd | ダンパ装置 |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0361458B1 (en) * | 1988-09-29 | 1993-11-18 | Aisin Seiki Kabushiki Kaisha | Clutch disk assembly |
GB2318620B (en) * | 1995-10-20 | 1999-04-14 | Exedy Corp | Friction coupling device |
JP3526139B2 (ja) * | 1996-07-03 | 2004-05-10 | 株式会社エクセディ | ダンパーディスク組立体 |
-
2011
- 2011-07-14 CN CN2011900006243U patent/CN203214761U/zh not_active Expired - Lifetime
- 2011-07-14 JP JP2012525381A patent/JP5376061B2/ja not_active Expired - Fee Related
- 2011-07-14 WO PCT/JP2011/066072 patent/WO2012011428A1/ja active Application Filing
- 2011-07-14 EP EP11809599.1A patent/EP2597331B1/en not_active Not-in-force
Patent Citations (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6081520A (ja) * | 1983-10-12 | 1985-05-09 | Shiyouyou Giken Kogyo Kk | 緩衝伝動装置 |
JPH09100842A (ja) * | 1984-11-23 | 1997-04-15 | Luk Lamellen & Kupplungsbau Gmbh | クラッチディスク |
JPH0842594A (ja) | 1994-06-30 | 1996-02-13 | Luk Lamellen & Kupplungsbau Gmbh | ねじり振動ダンパ |
JPH0842591A (ja) | 1994-07-29 | 1996-02-13 | Aisin Seiki Co Ltd | 捩じれ緩衝ディスク |
DE19753557A1 (de) | 1996-12-11 | 1998-06-18 | Luk Lamellen & Kupplungsbau | Torsionsschwingungsdämpfer |
JP2000310283A (ja) * | 1999-04-27 | 2000-11-07 | Exedy Corp | ダンパー機構及びダンパーディスク組立体 |
JP2006144884A (ja) * | 2004-11-18 | 2006-06-08 | Exedy Corp | クラッチディスク組立体 |
JP2009133378A (ja) * | 2007-11-29 | 2009-06-18 | Toyota Motor Corp | トルク変動吸収装置 |
JP2009293652A (ja) | 2008-06-03 | 2009-12-17 | Aisin Seiki Co Ltd | トルク変動吸収装置 |
JP2010038312A (ja) | 2008-08-07 | 2010-02-18 | Aisin Seiki Co Ltd | ダンパ装置 |
Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR20150010986A (ko) * | 2012-05-14 | 2015-01-29 | 클러치 인더스트리즈 피티와이 엘티디 | 마찰 클러치 조립체 |
CN104411990A (zh) * | 2012-05-14 | 2015-03-11 | 离合器实业有限公司 | 摩擦离合器组件 |
JP2015520342A (ja) * | 2012-05-14 | 2015-07-16 | クラッチ・インダストリーズ・プロプライエタリー・リミテッド | 摩擦クラッチ組立体 |
CN104411990B (zh) * | 2012-05-14 | 2017-05-31 | 离合器实业有限公司 | 摩擦离合器组件 |
US9702413B2 (en) | 2012-05-14 | 2017-07-11 | Clutch Industries Pty Ltd | Friction clutch assembly |
KR101972112B1 (ko) | 2012-05-14 | 2019-04-24 | 클러치 인더스트리즈 피티와이 엘티디 | 마찰 클러치 조립체 |
CN112343963A (zh) * | 2019-08-07 | 2021-02-09 | 法雷奥凯佩科液力变矩器(南京)有限公司 | 用于液力扭矩联接装置的扭转振动阻尼系统 |
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JPWO2012011428A1 (ja) | 2013-09-09 |
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JP5376061B2 (ja) | 2013-12-25 |
EP2597331A4 (en) | 2014-03-26 |
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