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WO2021112410A1 - Ensemble amortisseur pendulaire pour convertisseur de couple - Google Patents

Ensemble amortisseur pendulaire pour convertisseur de couple Download PDF

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Publication number
WO2021112410A1
WO2021112410A1 PCT/KR2020/014840 KR2020014840W WO2021112410A1 WO 2021112410 A1 WO2021112410 A1 WO 2021112410A1 KR 2020014840 W KR2020014840 W KR 2020014840W WO 2021112410 A1 WO2021112410 A1 WO 2021112410A1
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WO
WIPO (PCT)
Prior art keywords
pendulum
mass
torque converter
damper assembly
circumferential surface
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/KR2020/014840
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English (en)
Korean (ko)
Inventor
배현기
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Valeo Kapec Co Ltd
Original Assignee
Valeo Kapec Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Valeo Kapec Co Ltd filed Critical Valeo Kapec Co Ltd
Publication of WO2021112410A1 publication Critical patent/WO2021112410A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H45/00—Combinations of fluid gearings for conveying rotary motion with couplings or clutches 
    • F16H45/02—Combinations of fluid gearings for conveying rotary motion with couplings or clutches  with mechanical clutches for bridging a fluid gearing of the hydrokinetic type
    • 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
    • F16D41/00—Freewheels or freewheel clutches
    • F16D41/12—Freewheels or freewheel clutches with hinged pawl co-operating with teeth, cogs, or the like
    • 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
    • F16D41/00—Freewheels or freewheel clutches
    • F16D41/20—Freewheels or freewheel clutches with expandable or contractable clamping ring or band
    • 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
    • F16F15/14—Suppression of vibrations in rotating systems by making use of members moving with the system using masses freely rotating with the system, i.e. uninvolved in transmitting driveline torque, e.g. rotative dynamic dampers
    • 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
    • F16F15/14—Suppression of vibrations in rotating systems by making use of members moving with the system using masses freely rotating with the system, i.e. uninvolved in transmitting driveline torque, e.g. rotative dynamic dampers
    • F16F15/1407—Suppression of vibrations in rotating systems by making use of members moving with the system using masses freely rotating with the system, i.e. uninvolved in transmitting driveline torque, e.g. rotative dynamic dampers the rotation being limited with respect to the driving means
    • F16F15/145—Masses mounted with play with respect to driving means thus enabling free movement over a limited range
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H45/00—Combinations of fluid gearings for conveying rotary motion with couplings or clutches 
    • F16H45/02—Combinations of fluid gearings for conveying rotary motion with couplings or clutches  with mechanical clutches for bridging a fluid gearing of the hydrokinetic type
    • F16H2045/0221—Combinations of fluid gearings for conveying rotary motion with couplings or clutches  with mechanical clutches for bridging a fluid gearing of the hydrokinetic type with damping means

Definitions

  • the present invention relates to a pendulum damper assembly for a torque converter, and more particularly, to a pendulum damper assembly for a torque converter that attenuates shock and vibration acting in a rotational direction of a shaft in a torque converter.
  • a torque converter is installed between an engine and a transmission of a vehicle and transmits the driving force of the engine to the transmission using a fluid.
  • a torque converter includes an impeller rotating by receiving the driving force of the engine, a turbine rotating by oil discharged from the impeller, and a reactor that increases the torque change rate by directing the flow of oil returned to the impeller in the rotational direction of the impeller ( Also called 'stator').
  • the torque converter is equipped with a lock-up clutch (also known as a 'damper clutch'), a means of direct connection between the engine and the transmission, as the power transmission efficiency may decrease when the load acting on the engine increases.
  • the lock-up clutch is disposed between the turbine and the front cover directly connected to the engine so that rotational power of the engine can be directly transmitted to the turbine.
  • Such a lock-up clutch includes a piston movable axially to the turbine shaft. And the piston is coupled to a friction material in frictional contact with the front cover.
  • a torsional damper capable of absorbing shock and vibration acting in the rotational direction of the shaft when the friction material is coupled to the front cover is coupled to the piston.
  • the rotational power of the engine input to the front cover is not uniformly input, there is strength and weakness, and when the frequency coincides with the natural frequency of the torque converter, resonance occurs. Accordingly, the amplitude of the frequency of the driving force input to the input shaft of the transmission through the torque converter may also increase.
  • the pendulum damper assembly may absorb the vibration by absorbing strength and weakness of the rotational power input to the input side while transmitting the input rotational power to the output side.
  • the pendulum damper assembly utilizes the moment of inertia generated by the mass, which may increase as the distance from the center of rotation and as the mass of the mass increases.
  • the structure of the conventional pendulum damper assembly disclosed in US Patent No. 5,884,735 has a structure in which a front mass and a rear mass are coupled to an annular pendulum support. Such a structure has a problem in that it is difficult to increase the mass.
  • a gap is required to form an oil film through which a working fluid flows in order to prevent frictional wear between the mass and the support.
  • protrusions are formed on the mass to form a gap through which the working fluid flows between the mass and the support, but these protrusions must be supported by the support. Since the radius must be increased, the mass of the support, not the mass, is increased.
  • An object of the present invention is to provide a pendulum damper assembly for a torque converter that prevents frictional wear between a pendulum support and a mass.
  • another object of the present invention is a pendulum damper for a torque converter that has a simple shape and manufacture, and can secure the mass by maximally securing the volume of the mass, and maximally secure the moment of inertia of the mass within an allowable volume. We want to provide an assembly.
  • a pendulum damper assembly for a torque converter for achieving this object includes: a pendulum support including a plurality of flanges extending radially outward from an outer circumferential surface and arranged at equal intervals along the circumferential direction; a plurality of masses disposed in a state in which both ends face each other on the front and rear surfaces of the two flanges adjacent to each other in the radial direction; a plurality of intermediate masses disposed between the two flanges adjacent in the radial direction and coupled to the masses while being interposed between the masses facing each other; and a plurality of rollers coupling the mass to which the intermediate mass is coupled to the pendulum support so as to change a position relative to the pendulum support along a trajectory set in the circumferential direction of the pendulum support by centrifugal force.
  • Including, wherein the mass body forms a gap between the pendulum support and the pendulum support so that the working fluid flows in, a gap maintaining protrusion formed to protrude toward the pendulum support from one surface facing the front and rear of the pendulum support ; may include.
  • the mass body faces the front and rear surfaces of the pendulum support so that the intermediate mass is coupled through a rivet between the masses in a state in which the outer circumferential surface of the intermediate mass and the outer circumferential surface of the mass are aligned at the center of the circumferential direction of the mass.
  • a seating groove concavely formed toward one surface from each other surface; may further include.
  • a shape of the gap maintaining protrusion may be the same as that of the intermediate mass, and an area thereof may be formed to occupy 80% or more of the total area of the intermediate mass.
  • the gap maintaining protrusion may protrude from one surface of the mass body to a length of about 0.5 mm.
  • the ratio of the thickness of the gap maintaining protrusion to the thickness of the thinnest part of the mass body may be set to a ratio of about 5% to about 20% to secure the gap.
  • the intermediate mass may be formed in a circular arc shape having an inner circumferential surface and an outer circumferential surface having a set curvature, and both side surfaces in the circumferential direction may be formed in a sectoral shape formed as an inclined surface inclined toward the center of the pendulum support.
  • a radius of curvature of an outer circumferential surface of the intermediate mass may be the same as a radius of curvature of an outer circumferential surface of the mass body.
  • the circumferential side surface of the intermediate mass may have a shape complementary to that of the circumferential side surface of the flange.
  • An accommodating space of the intermediate mass may be defined between the two adjacent flanges, and the accommodating space may be opened radially outwardly.
  • the flange is provided with a first pendulum track, and second pendulum tracks having a shape different from the first pendulum track are respectively provided on both sides of the mass body in the circumferential direction, and the roller interposes the first pendulum track.
  • the roller may be disposed to pass through the second pendulum orbit facing each other, and a relative positional movement may be possible with respect to the flange and the mass body within the first pendulum orbit and the second pendulum orbit.
  • the first pendulum orbit may be formed so that both sides are rounded in the circumferential direction toward the center of the pendulum support.
  • the second pendulum orbit may be formed to have a shape opposite to that of the first pendulum orbit so that both sides of the second pendulum orbit are rounded in a circumferential direction toward a radially outer side of the mass body.
  • a stopper may be mounted at the center of the inner circumferential surface of the intermediate mass.
  • the side surface of the intermediate mass may be prevented from contacting the circumferential side surface of the flange.
  • a mounting groove may be formed in the intermediate mass so that the inner circumferential surface of the stopper is mounted in a state in which a portion protrudes from the intermediate mass toward the center of rotation from the center of the intermediate mass toward the radially outward direction.
  • the stopper may have a width length of an outer circumferential surface longer than a width length of an inner circumferential surface based on the radial direction, and fitting protrusions may be formed on both sides of the outer circumferential surface in the circumferential direction.
  • Fitting grooves may be respectively formed in the mounting grooves to correspond to the fitting protrusions.
  • the stopper has a fitting protrusion inserted into the fitting groove, and is coupled to the mounting groove by a force fitting method, and the length of the outer circumferential surface is longer than the length of the inner circumferential surface, so that separation from the mounting groove can be prevented by its own weight. .
  • At least a portion of both side surfaces of the stopper corresponding to each of the masses facing each other in the width direction may be supported by the masses.
  • the track may be formed such that the inner circumferential surface of the intermediate mass approaches the outer circumferential surface of the pendulum support between the flanges as the mass body deviates in the circumferential direction from a state in the center between the two flanges.
  • the mass and the intermediate mass may be fixedly coupled to each other by the rivet so that relative movement is impossible.
  • the pendulum damper assembly for a torque converter according to an embodiment of the present invention, friction between the pendulum support and the mass is maintained by maintaining a gap between the pendulum support and the mass without increasing the size and weight of the pendulum support. By minimizing the occurrence, friction wear is prevented and durability is improved.
  • the present invention has the effect of maximally securing the moment of inertia of the mass body even within an allowable volume, as the present invention can increase the mass by securing the maximum volume of the mass body while being simple in shape and manufacturing.
  • the present invention applies a stopper to limit the circumferential fluctuation of the mutually assembled mass and the intermediate mass by restricting the movement of the central portion of the inner circumferential surface of the intermediate mass in the direction of the center of rotation, so that even if a stopper made of an elastic material is installed, the mass and the intermediate mass It is possible to secure the moment of inertia as much as possible, and it also has an effect of acting on both the circumferential fluctuations of the mass and the intermediate mass through one stopper.
  • the stopper is fixed simply by assembling the mass and the intermediate mass, assembly and installation are easy, and since the stopper is seated in the mounting groove formed in the rotation center direction of the intermediate mass, the stopper is more stable by centrifugal force There is an effect that can be supported by
  • FIG. 1 is a perspective view of a pendulum damper assembly for a torque converter according to an embodiment of the present invention.
  • FIG. 2 is an exploded perspective view of a pendulum damper assembly for a torque converter according to an embodiment of the present invention.
  • FIG. 3 is a cross-sectional view taken along line A-A of FIG. 1 .
  • FIG. 4 is a cross-sectional view taken along line B-B of FIG. 1 .
  • FIG. 5 is a front perspective view of a mass applied to a pendulum damper assembly for a torque converter according to an embodiment of the present invention.
  • FIG. 6 is a rear perspective view of a mass applied to a pendulum damper assembly for a torque converter according to an embodiment of the present invention.
  • FIG. 7 is a cross-sectional view taken along line C-C of FIG. 5 .
  • FIG. 8 is a perspective view of a pendulum support, a mass assembly, and a roller in the pendulum damper assembly for a torque converter according to an embodiment of the present invention from the front.
  • FIG. 9 is a perspective view showing the front mass body in the pendulum damper assembly for a torque converter according to the embodiment of the present invention.
  • FIG. 10 is an exploded perspective view of an intermediate mass and a stopper applied to a pendulum damper assembly for a torque converter according to an embodiment of the present invention.
  • 11 to 13 are operation state diagrams of a pendulum damper assembly for a torque converter according to an embodiment of the present invention.
  • the front-rear direction or the axial direction is a direction parallel to the axis of rotation, and the front (front) refers to a direction toward the power source, such as the engine, and the rear (rear) refers to the other direction, such as the direction toward the transmission. Therefore, the front (front) means the surface on which the surface faces the front, and the rear (rear) means the surface on which the surface faces the rear.
  • the radial or radial direction means a direction approaching the center or a direction away from the center along a straight line passing through the center of the rotation axis on a plane perpendicular to the rotation axis.
  • a direction away from the center in a radial direction is referred to as a centrifugal direction, and a direction closer to the center is referred to as a centripetal direction.
  • the circumferential direction means a direction surrounding the circumference of the rotation shaft.
  • the outer circumference means the outer circumference
  • the inner circumference means the inner circumference. Accordingly, the outer circumferential surface is a surface facing away from the rotation shaft, and the inner circumferential surface is a surface facing the rotation shaft.
  • the circumferential side surface means a surface whose normal line is approximately in the circumferential direction.
  • FIG. 1 is a perspective view of a pendulum damper assembly for a torque converter according to an embodiment of the present invention
  • FIG. 2 is an exploded perspective view of a pendulum damper assembly for a torque converter according to an embodiment of the present invention
  • FIG. 3 is AA of FIG. Fig. 4 is a cross-sectional view taken along line BB of Fig. 1
  • Fig. 5 is a front perspective view of a mass applied to the pendulum damper assembly for a torque converter according to an embodiment of the present invention
  • Fig. 6 is the present invention is a rear perspective view of a mass applied to a pendulum damper assembly for a torque converter according to an embodiment
  • FIG. 7 is a cross-sectional view taken along line CC of FIG. 5, and FIG.
  • FIG. 8 is a pendulum damper for a torque converter according to an embodiment of the present invention. It is a perspective view of the pendulum support body, the mass assembly, and the roller in the assembly, and FIG. 9 is a perspective view showing the front mass body omitted from the pendulum damper assembly for a torque converter according to the embodiment of the present invention, and FIG. It is an exploded perspective view of an intermediate mass and a stopper applied to a pendulum damper assembly for a torque converter according to an embodiment of the present invention.
  • the pendulum damper assembly 100 for a torque converter may be provided inside a torque converter mounted on a vehicle.
  • the torque converter receives the rotational force of a rotational power source such as an engine or a motor and transmits it to the output side.
  • a rotational power source such as an engine or a motor
  • the torque is multiplied and transmitted, and after the initial driving, the rotational speed of the output is the rotational speed of the input.
  • the rotation speed of the input and the rotation speed of the output can be fixed at a ratio of 1:1.
  • the torque converter configured as described above directly outputs the input torque through the damper through the lock-up operation of the lock-up clutch without going through the fluid clutch. let it do
  • the embodiment of the present invention According to the pendulum damper assembly 100 may be applied.
  • the pendulum damper assembly 100 for a torque converter includes a pendulum support 102, a mass body 110, an intermediate mass 120, and a roller. (130).
  • the pendulum support 102 may be formed in a generally circular ring shape.
  • the inner peripheral surface of the pendulum support 102 is formed into a curved surface through drawing processing, etc., so that overall rigidity can be reinforced.
  • a plurality of flanges 104 extending radially outward from the outer circumferential surface and arranged at equal intervals along the circumferential direction may be integrally formed on the pendulum support 102 .
  • six flanges 104 are spaced apart from each other at an angle of 60° along the circumferential direction of the pendulum support 102 , and it will be described as an embodiment.
  • six of the flanges 104 are arranged at an angle of 60°, and three sets of adjacent two flanges 104 may be provided, and between the two adjacent flanges 104, the middle An accommodation space 106 of the mass body 120 may be formed.
  • a pair of circumferential side surfaces facing each other in one of the flanges 104 may be parallel to each other or may have a shape that gets closer to the outside in the radial direction.
  • the width of the receiving space 106 is secured, but the width of the portion disposed further away from the center of the pendulum support 102 in the radial direction can be further secured. This may further secure a moment of inertia of the intermediate mass 40, which will be described later.
  • the accommodating space 106 includes an accommodating space outer circumferential surface 106a having an outer circumferential surface recessed between the two adjacent flanges 104, and a circumferential side surface 106b in which the two adjacent flanges 104 face each other. ) can be defined by
  • the accommodation space 25 may be opened radially outward.
  • the outer peripheral surface 106a of the receiving space formed in this way may have an arc shape convex outward in the radial direction.
  • the first pendulum track 108 is formed on the flange 106 .
  • the first pendulum orbit 108 has the shape of an elongated hole penetrating in the axial direction.
  • the first pendulum track 108 may be formed so that both sides are rounded in the circumferential direction toward the center of the pendulum support 102 so as to have an arc shape formed symmetrically with each other.
  • each of the masses 110 may be disposed in a state where both ends of the masses 110 face the front and rear surfaces of the two flanges 104 adjacent to each other in the radial direction.
  • Three such masses 110 may be arranged at equal intervals from the front and rear surfaces of the pendulum support 102 .
  • the mass body 110 may be respectively mounted on the front and rear surfaces of the pendulum support 102 through the two adjacent flanges 104 forming the accommodation space 106 .
  • the mass body 110 may be formed in an arc shape having an inner circumferential surface and an outer circumferential surface having a set curvature while covering the accommodating space 106 .
  • the intermediate mass 120 is provided in plurality to correspond to the accommodation space 106 .
  • the intermediate mass 120 is disposed between the two flanges 104 adjacent to each other in the radial direction, and interposed between the mass bodies 110 facing each other. are combined
  • the intermediate mass 120 is a plate shape extending in the circumferential direction, and may be formed in an arc shape having an outer circumferential surface and an inner circumferential surface having a set curvature centered in a direction toward the rotation center of the pendulum support 102. (See Fig. 10).
  • the intermediate mass 120 may be formed in a sectoral shape in which both side surfaces in the circumferential direction are inclined toward the center of the pendulum support 102 (see FIG. 10 ).
  • the outer circumferential surface of the intermediate mass 120 has a curved surface substantially corresponding to the outer circumferential surface of the flange 104 to minimize interference with other components.
  • the outer circumferential surface of the intermediate mass 120 may protrude further in the radial direction than the arc formed by the outer circumferential surface of the flange 104 .
  • the intermediate mass 120 may have a radius of curvature of an outer circumferential surface equal to a radius of curvature of an outer circumferential surface of the mass body 110 .
  • the inner circumferential surface of the intermediate mass 120 is disposed radially outward than the outer circumferential surface 106a of the accommodation space. That is, the inner peripheral surface of the intermediate mass 120 may be disposed at a predetermined distance from the receiving space outer peripheral surface 106a (see FIG. 8 ).
  • the circumferential side surface of the intermediate mass 120 is disposed at a predetermined interval from the circumferential side surface of the flange 104 in the circumferential direction.
  • a circumferential side surface of the intermediate mass 120 may have a shape corresponding to the circumferential side surface of the flange 104 and may be substantially parallel (see FIG. 8 ).
  • the shape of the circumferential side surface of the intermediate mass 120 may be complementary to the shape of the circumferential side surface of the flange 104 .
  • the roller 130 is provided in plurality. Six such rollers 130 may be provided corresponding to the first pendulum tracks 108 formed on each of the flanges 104 .
  • the roller 130 has the intermediate mass 120 coupled thereto so as to change its position relative to the pendulum support 102 along a trajectory set in the circumferential direction of the pendulum support 102 by centrifugal force.
  • the mass body 110 may be coupled to the pendulum support 102 .
  • the inner circumferential surface of the intermediate mass 120 moves between the flanges 104 .
  • the outer peripheral surface of the rum support 102 may be formed to be close to the outer peripheral surface of the receiving space (106a).
  • mass body 110 and the intermediate mass 120 may be mounted on the pendulum support 102 through the roller 130 to swing in one side and the other in the circumferential direction.
  • the pendulum support 102 , the mass body 110 , and the intermediate mass 120 may be made of a metal plate to increase rigidity and mass and facilitate manufacturing.
  • the mass body 110 operates by forming a gap G between the pendulum support body 102 and the pendulum support body 102 as shown in FIGS. 3 to 7 . It may include a gap maintaining protrusion 112 protruding toward the pendulum support 102 from one side of each of the front and rear surfaces of the pendulum support 102 so that the fluid flows therein.
  • the gap maintaining protrusion 112 may be formed to have the same shape as that of the intermediate mass 120 and to occupy 80% or more of the total area of the intermediate mass 120 (see FIG. 6 ). .
  • the gap maintaining protrusion 112 may protrude from one surface of the mass body 110 , that is, from each surface facing the front and rear surfaces of the pendulum support 102 , to a length of about 0.5 mm.
  • the reason for forming the gap maintaining protrusion 112 is the intermediate mass 120 formed of a soft material in a riveting process for assembling the mass body 110 and the intermediate mass 120 with each other. ), so that the gap G may not be maintained or the gap G may not be formed.
  • the rivets between the mass body 110 and the intermediate mass 120 by forming the area of the gap maintaining protrusion 112 to be equal to or occupying 80% or more of the plane area of the intermediate mass 120 , the rivets between the mass body 110 and the intermediate mass 120 . It is possible to induce a smooth load distribution at the time of loading, and at the same time, it is possible to promote smooth formation and maintenance of the gap (G).
  • a ratio between the thickness of the gap maintaining protrusion 112 and the thickness of the thinnest part of the mass body 110 may be set at a ratio of about 5% to about 20% to secure the gap G.
  • the ratio is preferably set to 10%.
  • the mass body 110 is in a state in which the outer circumferential surface of the intermediate mass 120 and the outer circumferential surface of the mass 110 are aligned at the center of the circumferential direction of the mass body 110, and the intermediate mass 120 is A seating groove 114 that is concavely formed toward one surface on each of the other surfaces opposite to the front and rear surfaces of the pendulum support 102 so as to be coupled through the rivets 140 between the masses 120 may be further included.
  • the seating groove 114 may be formed in the same shape as the gap maintaining protrusion 112 , and may be formed together with the gap maintaining protrusion 112 in a pressing process.
  • the mounting groove 114 prevents the head of the rivet 140 from protruding from the mass body 110 during the riveting process of the pair of the mass body 110 and the intermediate mass body 120 , thereby providing a torque converter. It is possible to prevent the rivet 140 from interfering with other parts in the inside of the rivet.
  • the mass body 110 and the intermediate mass 120 may be fixedly coupled to each other by the rivet 140 so that relative movement is impossible.
  • second pendulum orbits 116 having a shape different from that of the first pendulum orbits 108 may be provided on both sides of the mass body 110 in the circumferential direction, respectively.
  • the second pendulum track 116 is formed in the shape of an elongated hole penetrating in the axial direction.
  • the second pendulum track 116 may have a shape opposite to that of the first pendulum track 108 , and both sides may be rounded.
  • the second pendulum track 116 is opposite to the first pendulum track 108 and has an arc shape formed symmetrically with each other in the circumferential direction toward the radially outward side of the pendulum support body 102 . Both sides may be formed to be round.
  • roller 130 is disposed to pass through each of the second pendulum tracks 116 facing each other, with the first pendulum tracks 108 interposed therebetween, and the first pendulum tracks 108 ) and within the second pendulum orbit 1106 , a relative positional movement with respect to the flange 104 and the mass body 110 may be possible.
  • the mass body 110 may have a shape that is expanded in a centrifugal direction or a rotation center direction compared to the intermediate mass 120 . Accordingly, masses of the assembled mass body 110 and the intermediate mass body 120 are increased, thereby increasing the moment of inertia.
  • a pair of the masses 110 interposed with one intermediate mass 120 interposed therebetween are spaced apart at equal intervals along the circumferential direction of the pendulum support 102 to provide three. have.
  • pair of masses 110 may be integrated by riveting through one intermediate mass 120 and two rivets 140 .
  • rollers 130 may be installed to correspond to the first pendulum tracks 108 respectively formed on the six flanges 104 .
  • a diameter of a portion inserted into the first pendulum track 108 may be larger than a diameter of a portion inserted into the second pendulum track 116 .
  • the roller 130 can be prevented from being separated from the first and second pendulum tracks 108 and 116 .
  • roller 130 relatively rolls along the longitudinal direction of the first and second pendulum tracks 108 and 116 .
  • the mass body 110 and the intermediate mass 120 may swing in the circumferential direction at the radially outer edge of the pendulum support 102 in a state in which the mass body 110 and the intermediate mass 120 are integrated with each other.
  • roller 130 is movable relative to the flange 104 and the mass body 110 within the first and second pendulum tracks 108 and 116 .
  • a stopper 126 may be mounted at the center of the inner circumferential surface of the intermediate mass 120 as shown in FIGS. 8 to 10 .
  • the intermediate mass 120 has a mounting groove 122 radially outward from the center of the inner circumferential surface so that the inner circumferential surface of the stopper 126 is mounted in a state that partially protrudes from the intermediate mass 120 toward the center of rotation. can be formed.
  • An inner circumferential surface of the mounting groove 122 may be opened such that an inner circumferential surface of the stopper 126 protrudes toward the center of the pendulum support 102 .
  • the stopper 126 may be formed of a material having elasticity while absorbing shock, for example, a rubber material.
  • the stopper 126 has a width length of an outer circumferential surface longer than a width length of an inner circumferential surface in the radial direction, and fitting projections 126a may be formed on both sides of the outer circumferential surface in the circumferential direction.
  • fitting grooves 122a may be formed in the mounting groove 122 to correspond to the fitting protrusions 126a, respectively.
  • the stopper 126 may be coupled to the mounting groove 122 by an interference fitting method while the fitting protrusion 126a is inserted into the fitting groove 122a.
  • stopper 126 may be formed to have an outer circumferential length longer than that of the inner circumferential surface to prevent separation from the mounting groove 122 by its own weight.
  • each of the stoppers facing each other in the width direction At least a portion of both side surfaces corresponding to the mass body 110 may be supported by the mass body 110 .
  • the circumferential side surface of the intermediate mass 120 is the flange 104 when the stopper 126 interferes with the outer peripheral surface 106a of the receiving space formed in the pendulum support 110 . contact with the circumferential side of the
  • the stopper 126 may limit the circumferential movement of the intermediate support 120 in the receiving space 106 .
  • the stopper 126 configured as described above is disposed at a position closest to the center of rotation in the mass body 110 and the intermediate mass 120 assembled together, and as only one stopper 126 is disposed, the volume it occupies can be reduced.
  • the stopper 126 is spaced apart from the outer peripheral surface 106a of the accommodation space to have a set interval when the intermediate mass 120 is located in the center of the accommodation space 106 . is positioned as
  • the assembled mass 110 and the intermediate mass 120 can no longer move toward one side or the other in the circumferential direction. can stop
  • the stopper 126 may limit the radial movement of the intermediate mass 120 while in contact with the outer peripheral surface 106a of the accommodation space facing the inner peripheral surface of the intermediate mass 120 .
  • the circumferential side surface of the intermediate mass 120 is prevented from contacting the circumferential side surface of the flange 104 , and noise due to the contact between the intermediate mass 120 and the flange 104 made of a metal material occurrence can be prevented.
  • the roller 130 moves the first pendulum track 108 and the second While being fitted while moving toward opposite ends on the pendulum track 116, it absorbs noise and vibration generated, and the roller 130, and the first and second pendulum tracks 108 and 116 damage and deformation can be prevented.
  • the pendulum damper assembly 100 secures the volume of the intermediate mass 120 accommodated in the accommodation space 25 as much as possible, and within a given volume, the intermediate mass ( 120) is placed further away from the axis, the moment of inertia can be further increased.
  • the shape of the inner circumferential surface of the intermediate mass 120 may correspond to the shape of the inner circumferential surface of the mass body 110 adjacent thereto.
  • the shape of the outer circumferential surface of the intermediate mass 120 may correspond to the shape of the outer circumferential surface of the mass body 110 adjacent thereto.
  • the mass body 110 and the intermediate mass 120 are positioned as far from the axis as possible in the radial direction to increase the moment of inertia while minimizing the volume occupied by the mass body 110 .
  • the above-described structure allows the intermediate mass 120 to be disposed further away from the axis within a given volume, without compromising the technical idea of further increasing the moment of inertia, which may occur when the intermediate mass 120 is oscillated.
  • the possibility of collision with the pendulum support 102 can be greatly reduced.
  • the mass 110 moves in the circumferential direction. When it oscillates, it is possible to minimize the occurrence of friction with the pendulum support 102 .
  • the stopper 126 is disposed at the position closest to the center of rotation of the mass body 110 and the intermediate mass 120 assembled together, and since only one stopper 126 can be disposed, the volume itself occupied by the stopper 126 is also reduced. can
  • 11 to 13 are operation state diagrams of a pendulum damper assembly for a torque converter according to an embodiment of the present invention.
  • the intermediate assembly 120 is positioned in the center of the accommodation space 106 . do.
  • the assembled mass 110 and the intermediate mass 120 move to the right in the circumferential direction. It can no longer move toward it and can stop.
  • the assembled mass 110 and the intermediate mass 120 move to the left in the circumferential direction. It can no longer move toward it and can stop.
  • the working fluid may flow to form an oil film.
  • This oil film minimizes direct contact between the opposing surfaces of the pendulum support 102 and the mass body 110, thereby preventing the occurrence of frictional wear between the pendulum support 102 and the mass body 110 in advance.
  • the pendulum damper assembly 100 for a torque converter configured as described above is applied, the pendulum support 102 without increasing the size and weight of the pendulum support 102 . ) and the mass body 110 to maintain a gap to minimize friction between the pendulum support 102 and the mass body 110 , thereby preventing friction wear and improving durability.
  • the present invention can increase the mass by maximally securing the volumes of the mass body 110 and the intermediate mass 120 coupled to each other while being simple in shape and manufacture, and thereby, the mass body ( 110), and the moment of inertia of the intermediate mass 120 may be secured as much as possible.
  • the stopper 126 restricts the movement of the central portion of the inner circumferential surface of the intermediate mass 120 in the direction of the center of rotation to limit the circumferential fluctuation of the mass body 110 and the intermediate mass 120 assembled together. ), even when the stopper 120 made of a resilient material is installed, the moment of inertia of the mass body 110 and the intermediate mass body 120 can be maximally secured, and the mass body through one stopper 126 . (110), and may both act on the circumferential swing of the intermediate mass (120).
  • assembling and mounting is simple as the stopper 126 is fixed only by assembling the mass body 110 and the intermediate mass 120 , and the intermediate mass 120 is formed in the direction of the center of rotation. Since the stopper 126 is seated in the mounting groove 122 , the stopper 126 may be more stably supported by centrifugal force.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Aviation & Aerospace Engineering (AREA)
  • Vibration Prevention Devices (AREA)

Abstract

La présente invention concerne un ensemble amortisseur pendulaire destiné à un convertisseur de couple. L'ensemble amortisseur pendulaire destiné à un convertisseur de couple selon un mode de réalisation de la présente invention comprend : un corps de soutien de pendule comprenant une pluralité de brides, s'étendant à partir d'une surface circonférentielle externe vers l'extérieur selon la direction radiale et agencées à des intervalles constants selon la direction circonférentielle; une pluralité de masses, agencées de sorte que leurs extrémités opposées fassent respectivement face à des surfaces avant et arrière de deux brides adjacentes selon la direction radiale; une pluralité de masses intermédiaires disposées entre deux brides adjacentes en fonction de la direction radiale et accouplées aux masses dans un état d'interposition entre les masses se faisant face; et une pluralité de rouleaux permettant d'accoupler les masses auxquelles sont accouplées les masses intermédiaires au corps de soutien de pendule, si bien que les emplacements des masses varient par rapport au corps de soutien de pendule, selon la force centrifuge, le long d'une piste définie selon la direction circonférentielle du corps de soutien de pendule. Les masses peuvent comprendre chacune des saillies de maintien d'espace faisant saillie vers le corps de soutien de pendule à partir de surfaces respectives faisant face aux surfaces avant et arrière du corps de soutien de pendule, si bien que des espaces peuvent se former entre les masses et le corps de soutien de pendule et qu'un fluide de fonctionnement est introduit entre ces derniers.
PCT/KR2020/014840 2019-12-02 2020-10-28 Ensemble amortisseur pendulaire pour convertisseur de couple Ceased WO2021112410A1 (fr)

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KR1020190158413A KR102349101B1 (ko) 2019-12-02 2019-12-02 토크 컨버터용 펜들럼 댐퍼 어셈블리
KR10-2019-0158413 2019-12-02

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KR20140146654A (ko) * 2012-04-20 2014-12-26 발레오 앙브라이아쥐 특히 자동차 트랜스미션용 진자 댐핑 장치
KR20160140699A (ko) * 2014-04-04 2016-12-07 발레오 앙브라이아쥐 토션 진동 댐핑 장치
KR101770063B1 (ko) * 2016-04-29 2017-08-21 주식회사평화발레오 밀봉형 펜듈럼을 갖춘 듀얼 매스 플라이휠
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WO2017045684A1 (fr) * 2015-09-18 2017-03-23 Schaeffler Technologies AG & Co. KG Dispositif de transmission de couple

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US20140251075A1 (en) * 2011-10-19 2014-09-11 Valeo Umbrayages Pendulum-oscillator-type damping system comprising an improved guiding device
KR20140146654A (ko) * 2012-04-20 2014-12-26 발레오 앙브라이아쥐 특히 자동차 트랜스미션용 진자 댐핑 장치
KR20160140699A (ko) * 2014-04-04 2016-12-07 발레오 앙브라이아쥐 토션 진동 댐핑 장치
KR101770063B1 (ko) * 2016-04-29 2017-08-21 주식회사평화발레오 밀봉형 펜듈럼을 갖춘 듀얼 매스 플라이휠
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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN116441065A (zh) * 2023-05-25 2023-07-18 安徽省荣昌新材料科技有限公司 一种高效分离式离心装置及其在聚酰胺树脂生产中的应用
CN116441065B (zh) * 2023-05-25 2024-05-03 安徽省荣昌新材料科技有限公司 一种分离式离心装置及其在聚酰胺树脂生产中的应用

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KR20210068863A (ko) 2021-06-10

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