WO2020139033A2 - Amortisseur pendulaire et convertisseur de couple de véhicule le comprenant - Google Patents

Amortisseur pendulaire et convertisseur de couple de véhicule le comprenant Download PDF

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Publication number
WO2020139033A2
WO2020139033A2 PCT/KR2019/018632 KR2019018632W WO2020139033A2 WO 2020139033 A2 WO2020139033 A2 WO 2020139033A2 KR 2019018632 W KR2019018632 W KR 2019018632W WO 2020139033 A2 WO2020139033 A2 WO 2020139033A2
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WO
WIPO (PCT)
Prior art keywords
pendulum
damper
engaging projection
support plate
turbine
Prior art date
Application number
PCT/KR2019/018632
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English (en)
Korean (ko)
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WO2020139033A3 (fr
Inventor
양상민
Original Assignee
주식회사 카펙발레오
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
Priority claimed from KR1020190004753A external-priority patent/KR102190131B1/ko
Application filed by 주식회사 카펙발레오 filed Critical 주식회사 카펙발레오
Publication of WO2020139033A2 publication Critical patent/WO2020139033A2/fr
Publication of WO2020139033A3 publication Critical patent/WO2020139033A3/fr

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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
    • F16F15/14—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

Definitions

  • the present invention relates to a pendulum damper of a vehicle torque converter provided in a vehicle torque converter to attenuate vibrations and shocks in a rotational direction of the torque converter, and more specifically, a pair of pendulums coupled to a support plate is fixed through joint bonding.
  • the present invention relates to a pendulum damper and a torque converter for a vehicle including the same.
  • a torque converter is installed between a vehicle's engine and a transmission to transmit the driving force of the engine to the transmission using fluid.
  • the torque converter receives an engine driving force and rotates an impeller, a turbine rotated by the working fluid discharged from the impeller, and a reactor that increases the rate of torque change by directing the flow of the working fluid back to the impeller in the rotating direction of the impeller. (Also known as'stator').
  • the torque converter is equipped with a lock-up clutch (also called a'damper clutch') that can directly connect the engine and the transmission because the power transmission efficiency may be reduced when the load on the engine increases.
  • the lock-up clutch is disposed between the turbine and the front cover directly connected to the engine so that the rotational power of the engine can be transmitted directly to the transmission through the turbine.
  • FIG. 1 An axial cross-sectional view of the general torque converter 101 is shown in FIG. 1.
  • the torque converter 101 is connected to the crankshaft of the engine and rotates the front cover 10, the impeller 20 connected to the front cover 10 to rotate together, and the impeller 20,
  • the turbine 30 spaced apart from each other and the reactor 40 positioned between the impeller 20 and the turbine 30 to change the flow of the working fluid discharged from the turbine 30 and transfer the flow of the working fluid to the impeller 20 side, It is disposed between the front cover 10 and the turbine 30 and has a piston 60 that can move in the axial direction and connects or releases the front cover 10 and the turbine 30 by the movement of the piston 60.
  • the lock-up clutch 50 transmits the driving force transmitted through the lock-up clutch 50 and the lock-up clutch 50 to the turbine hub 31 of the turbine 30 to absorb the torsional force acting in the rotational direction of the shaft and attenuate the lock-up clutch ( It includes a damper 70 coupled to 50).
  • the damper 70 includes a spring 71a absorbing shock and vibration acting in a circumferential direction, and a retaining plate 71 elastically accommodating the spring.
  • the torsional damper 70 includes a retaining plate 71 and a first pendulum damper 72 coupled to one side of the retaining plate 71 and a second pendulum damping member coupled to the other side of the retaining plate 71.
  • 2 includes a pendulum damper (73).
  • the first pendulum damper 72 and the second pendulum damper 73 are arranged with pendulums moving in a radial direction by centrifugal force to serve as a mass body, thereby absorbing vibration and shock in the rotational direction of the retaining plate 71.
  • a pendulum damper is added to a conventional torsional damper composed of a spring to reduce vibration and shock of a higher engine due to an increase in downsizing tendency and turbocharger adoption of an automobile engine, thereby increasing vibration reduction efficiency.
  • a torque converter is used.
  • the pendulum damper is generally arranged on both sides of a pair of pendulums around the support plate.
  • the pair of pendulums are configured to reciprocate on the support plate while being fixed to each other.
  • the pendulum damper 30 includes a support plate 31, a plurality of pendulums 32 and 33, and a plurality of coupling pins 35.
  • the support plate 31 may be riveted to the retaining plate of the torsional damper.
  • the pendulums 32 and 33 are coupled to the support plate 31 so as to be able to freely rotate a certain distance along the circumferential direction of the support plate 31.
  • FIG. 4 is a partial cross-sectional view of the support plate 31 and the pendulums 32 and 33 of the pendulum damper 30 above.
  • the pair of pendulums 32 and 33 are arranged on one surface and the other surface of the support plate 31 so that the fixing holes 32a and 33a are formed to be fixed through the rivet 35, respectively, and the support plate 31 On the ), the rivet movement hole 31a through which the rivet 35 penetrates is formed so that the pendulums 32 and 33 can reciprocate.
  • German patent publication DE102016215295 A1 by SCHAEFFLER TECHNOLOGIES discloses a configuration in which a rivet head is coupled to a recess formed in a pendulum to prevent an axial length increase of the pendulum damper.
  • this prior art requires a further process of forming a recess in the pendulum, and there is still a problem in that the configuration of the pendulum damper is complicated because several rivets are still required for each pendulum damper.
  • the present invention was devised to solve the above problems, and the pendulum damper and the torque converter for a vehicle according to the present invention form coupling protrusions on one or each of a pair of pendulums disposed on both sides of the support plate, and By combining a pair of pendulums by welding the coupling protrusions, separate coupling means such as rivets are removed to simplify the construction of the pendulum damper, prevent the axial length of the pendulum damper from being increased by the coupling means, and the manufacturing cost of the pendulum damper It aims at reducing.
  • Pendulum damper according to an embodiment of the present invention, the support plate; A pair of first and second pendulums respectively disposed on both sides in the axial direction of the support plate; Including, The first pendulum is formed on both sides in the circumferential direction of the first pendulum, and includes engaging projections protruding inside the inner surface of the first pendulum so that the end contacts the inner surface of the second pendulum, The first pendulum and the second pendulum have an end surface of the engaging projection and an inner surface of the second pendulum contacting the engaging projection.
  • the second pendulum is formed with an engaging groove so that the engaging projection is fitted on an inner surface contacting the end of the engaging projection.
  • the support plate a fixing hole through which the engaging projection is formed is formed, the fixing hole is wider than the width of the engaging projection so that the first and second pendulums can reciprocate in the circumferential or radial direction
  • the engaging projection is characterized in that the first pendulum is formed close to both ends in the circumferential direction.
  • Pendulum damper according to another embodiment of the present invention, the support plate; A pair of first and second pendulums respectively disposed on both sides in the axial direction of the support plate; Including, The first pendulum is formed on both sides in the circumferential direction of the first pendulum, and includes a first engaging projection protruding inside the first pendulum, the second pendulum, the second pendulum It is formed on both sides in the circumferential direction of, and includes a second engaging projection protruding inside the inner surface of the second pendulum so that the end contacts the end of the first engaging projection, wherein the first pendulum and the second pendulum are the An end portion of the first coupling protrusion and an end portion of the second coupling protrusion contacting the first coupling protrusion are joined.
  • the support plate is formed with a fixing hole through which the first and second coupling protrusions are formed, and the fixing hole has the coupling protrusion so that the first and second pendulums can reciprocate in a circumferential or radial direction. It has a width greater than the width of.
  • first pendulum and the second pendulum are characterized by being combined by any one method selected from welding, brazing, adhesion using an adhesive or interference fit.
  • the welding is characterized in that the projection welding (Projection Welding).
  • a torque converter for a vehicle which includes a pendulum damper according to an embodiment of the present invention, is arranged to face the front cover, an impeller coupled to the front cover and rotating in conjunction with the front cover, and spaced apart in the axial direction from the impeller A turbine, a reactor positioned between the impeller and the turbine to change the flow of the working fluid discharged from the turbine to the impeller, a lockup clutch having a front cover and a piston directly connecting the turbine, and the lockup clutch Including a damper for absorbing shock and vibration acting in the rotational direction to transmit the driving force to the transmission through the turbine,
  • the damper is coupled to the torsional damper and the torsional damper It includes a pendulum damper, the pendulum damper, a support plate; A pair of first and second pendulums respectively disposed on both sides in the axial direction of the support plate; Including, The first pendulum is formed on both sides in the circumferential direction of the first
  • first pendulum and the second pendulum are characterized by being combined by any one method selected from welding, brazing, adhesion using an adhesive or interference fit.
  • a torque converter for a vehicle which includes a pendulum damper according to another embodiment of the present invention, is arranged to face the front cover, an impeller coupled to the front cover and rotating in conjunction with the front cover, and spaced apart in the axial direction from the impeller A turbine, a reactor positioned between the impeller and the turbine to change the flow of the working fluid discharged from the turbine to the impeller, a lockup clutch having a front cover and a piston directly connecting the turbine, and the lockup clutch Including a damper for absorbing shock and vibration acting in the rotational direction to transmit the driving force to the transmission through the turbine,
  • the damper is coupled to the torsional damper and the torsional damper It includes a pendulum damper, the pendulum damper, a support plate; A pair of first and second pendulums respectively disposed on both sides in the axial direction of the support plate; Including, The first pendulum is formed on both sides in the circumferential direction of the first
  • the pendulum damper and the torque converter for a vehicle form coupling protrusions on one or each of a pair of pendulums arranged on both sides of a support plate, and weld the coupling protrusions to form a pair of pendulums
  • the separate coupling means such as rivets simplifies the configuration of the pendulum damper, prevents an increase in the axial length of the pendulum damper by the coupling means, and provides an effect of reducing the manufacturing cost of the pendulum damper.
  • the manufacturing process can be simplified and the manufacturing cost can be reduced compared to the conventional rivet coupling process. do.
  • the pendulum damper and the torque converter for a vehicle increase the weight of the pendulum to increase the vibration damping efficiency of the pendulum damper by increasing the coupling pendulum for welding engagement instead of the fixing hole for rivet coupling on the pendulum Provides the effect.
  • Figure 2 is an exploded perspective view of a conventional torsional damper and pendulum damper
  • Figure 3 is an exploded perspective view of a conventional pendulum damper
  • Figure 4 is a partial cross-sectional view of a pendulum damper using a conventional rivet coupling method
  • FIG. 5 is an exploded perspective view of a pendulum damper according to an embodiment of the present invention
  • FIG. 6 is an inner perspective view of the first and second pendulums according to the first embodiment of the present invention.
  • FIG. 7 is a partial cross-sectional view of a pendulum damper according to a first embodiment of the present invention
  • FIG. 8 is a partially exploded cross-sectional view of a pendulum damper according to a first embodiment of the present invention
  • Figure 9 is a cross-sectional view of the coupling process of the pendulum damper according to the first embodiment of the present invention
  • FIG. 10 is an inner perspective view of a first or second pendulum according to a second embodiment of the present invention
  • FIG. 11 is a partial cross-sectional view of a pendulum damper according to a second embodiment of the present invention
  • FIG. 12 is a partially exploded cross-sectional view of a pendulum damper according to a second embodiment of the present invention
  • FIG. 13 is a cross-sectional view of a coupling process of a pendulum damper according to a second embodiment of the present invention
  • first engaging projection 245 second engaging projection
  • FIG 5 is an exploded perspective view of a pendulum damper 1000 according to an embodiment of the present invention.
  • the pendulum damper 1000 is coupled to support the reciprocating motion in the circumferential and radial directions of the support plate 110, which are disposed on both sides of the support plate 110 made of an annular shape and the axial direction of the support plate 110, respectively.
  • the first and second pendulums 120 and 140, and the first and second pendulums 120 and 140 so that the first and second pendulums 120 and 140 guide the reciprocating motion when reciprocating on the support plate 110
  • a guide pin 150 fitted between the support plate 110.
  • the first pendulum 120 is disposed on one side of the support plate 110
  • the second pendulum 120 is disposed on the other side of the support plate 110.
  • first pendulum 120 and the second pendulum 140 may be combined to surround one surface and the other surface of the support plate 110 and the outer periphery.
  • the pendulum damper 1000 of the present invention having the above-described configuration has its characteristics in the coupling structure of the first and second pendulums 120 and 140, which will be described in detail with reference to the drawings.
  • FIG. 6 is an inner perspective view of the first pendulum 120 and the second pendulum 140 of the pendulum damper 1000 according to the first embodiment of the present invention.
  • 7 is a partial cross-sectional view of the pendulum damper 1000 according to the first embodiment of the present invention
  • FIG. 8 is a partially exploded cross-sectional view of the pendulum damper 1000 according to the first embodiment of the present invention. It is shown.
  • a plurality of first pendulums 120 are arranged radially along the circumferential direction of the support plate 110.
  • the first pendulum 120 is coupled to the reciprocating motion of the support plate 110 through coupling with the second pendulum 140, and is inserted into the first guide pin hole 111 (refer to FIG. 5) formed on the support plate 110.
  • the guide pin 150 is configured to be capable of pendulum movement in a circumferential direction or a radial direction as it rotates. Therefore, a 2-1 guide pin hole 121 corresponding to the first guide pin hole 111 is also formed on the first pendulum 120.
  • the first pendulum 120 is formed with a coupling protrusion 125 for coupling with the second pendulum 140.
  • the engaging projection 125 is formed to protrude inward in the axial direction of the first pendulum 120.
  • Coupling protrusions 125 may be formed on the circumferential outer side of the 2-1 guide pin hole 121, respectively. That is, the coupling protrusions 125 may be formed at both ends of the first pendulum 120 in the circumferential direction. As the coupling protrusion 125 is formed closer to the circumferential end of the first pendulum 120, the effect of dispersing the center of gravity of the first pendulum 120 increases, thereby increasing vibration damping efficiency.
  • the coupling protrusion 125 may be configured to have an end contacting the second pendulum 120.
  • the coupling protrusion 125 when the first and second pendulums 120 and 140 are respectively disposed on one surface and the other surface of the support plate 110, the coupling grooves formed at the ends of the second pendulum 120 145).
  • the coupling protrusion 125 is configured to penetrate the fixing hole 115 formed on the support plate 110, and the fixing hole 115 includes the first and second pendulums 120 in the state where the coupling protrusion 125 is fitted.
  • 140) is configured to have a size sufficient to guide the reciprocating motion.
  • a plurality of second pendulums 140 are arranged radially along the circumferential direction of the support plate 100.
  • the second pendulum 140 is coupled to the reciprocating motion of the support plate 110 through coupling with the first pendulum 120, and is inserted into the first guide pin hole 111 (refer to FIG. 5) formed on the support plate 110.
  • the guide pin 150 is configured to be capable of pendulum movement in a circumferential direction or a radial direction as it rotates. Therefore, a second-2 guide pin hole 141 corresponding to the first guide pin hole 111 is also formed on the second pendulum 140.
  • the second pendulum 140 is formed with a coupling groove 145 for welding coupling with the first pendulum 140.
  • the engaging groove 145 is recessed outward in the axial direction of the second pendulum 140.
  • the engaging groove 145 is formed at a position corresponding to the engaging projection 125, and may be formed on the outer side of the circumferential direction of the 2-2 guide pin hole 141, respectively. That is, the coupling grooves 145 may be formed at both ends of the second pendulum 140 in the circumferential direction. Therefore, the coupling groove 145 is configured to be coupled while the first and second pendulums 120 and 140 are disposed on one surface and the other surface of the support plate 110, respectively, while the coupling protrusions 125 are fitted.
  • the coupling protrusion 125 of the first pendulum 120 and the coupling protrusion 125 of the second pendulum 140 may be combined by any one method selected from welding, brazing, adhesion using an adhesive, or interference fit. have.
  • FIG. 9 is a cross-sectional view showing a coupling process of the pendulum damper 1000 according to the first embodiment of the present invention.
  • the first pendulum 120 and the second pendulum 140 are disposed on both sides of the support plate 110 in the axial direction, and the coupling protrusions 125 of the first pendulum 120 have the support plate 110. It penetrates through the fixing hole 115 and fits into the coupling groove 145 of the second pendulum 140.
  • the coupling groove 145 is not intended to be fitted with the coupling protrusion 125, and is configured to easily grasp the coupling positions of the first pendulum 120 and the second pendulum 140, so the depth is appropriately adjusted. Can be. Therefore, although the coupling groove 145 is shown in this embodiment, the coupling protrusion 125 may be configured to directly contact the inner surface of the second pendulum 140.
  • the welding method may be, for example, projection welding.
  • the projection welding applies a pressure by contacting a protrusion made of a joint of a metal member, and a constant resistance to limit the generation of resistance heat through a current to a relatively small specific portion (end of the coupling protrusion 125 in this embodiment).
  • welding method The pendulum damper 1000 of the present invention combines the first pendulum 120 and the second pendulum 140 through welding without rivets.
  • FIG. 10 is an inner perspective view of the first pendulum 220 or the second pendulum 240 of the pendulum damper 1000 according to the second embodiment of the present invention.
  • the first pendulum 220 and the second pendulum 240 of the second embodiment are formed in the same shape as each other and will be described in detail below based on the first pendulum 220.
  • FIG. 11 is a partial cross-sectional view of the pendulum damper 1000 according to the second embodiment of the present invention
  • FIG. 12 is a partially exploded cross-sectional view of the pendulum damper 1000 according to the second embodiment of the present invention. It is shown.
  • the first pendulum 220 is coupled to the reciprocating motion of the support plate 210 through coupling with the second pendulum 240, and is fitted into the first guide pin hole 111 (see FIG. 5) formed on the support plate 210.
  • the guide pin 150 is configured to be capable of pendulum movement in a circumferential direction or a radial direction as it rotates. Therefore, a 3-1 guide pin hole 221 corresponding to the first guide pin hole 111 is also formed on the first pendulum 220.
  • the first pendulum 220 is formed with a first coupling protrusion 225 for welding coupling with the second pendulum 240.
  • the first engaging projection 225 is formed to protrude inward in the axial direction of the first pendulum 220.
  • the first coupling protrusions 225 may be formed outside the circumferential direction of the 3-1 guide pin hole 221, respectively. That is, the first coupling protrusions 225 may be formed at both ends of the first pendulum 220 in the circumferential direction.
  • the coupling protrusion 225 has a second coupling protrusion 245 formed at the end of the second pendulum 220. It may be configured to contact the end of the.
  • the first coupling protrusion 225 is configured to penetrate the fixing hole 215 formed on the support plate 210, and the fixing hole 215 is the first and second in the state where the first coupling protrusion 225 is fitted It is configured to have a size sufficient to guide the reciprocating motion of the pendulum (220, 240).
  • the second pendulum 240 is coupled to the reciprocating motion of the support plate 210 through coupling with the first pendulum 220, and is fitted into the first guide pin hole 111 (see FIG. 5) formed on the support plate 210.
  • the guide pin 150 is configured to be capable of pendulum movement in a circumferential direction or a radial direction as it rotates. Accordingly, a 3-2 guide pin hole 241 corresponding to the first guide pin hole 111 is formed on the second pendulum 240.
  • the second pendulum 240 is formed with a second coupling protrusion 245 for coupling with the first pendulum 240.
  • the second coupling protrusion 245 is in contact with the end of the first coupling protrusion 225. It is configured to be combined in.
  • the coupling protrusion 125 of the first pendulum 120 and the coupling protrusion 125 of the second pendulum 140 may be combined by any one method selected from welding, brazing, or adhesion using an adhesive.
  • FIG. 13 is a cross-sectional view showing a coupling process of the pendulum damper 1000 according to the second embodiment of the present invention.
  • the first pendulum 220 and the second pendulum 240 are disposed on both sides of the support plate 210 in the axial direction, and the first engaging projection 225 of the first pendulum 220 has a support plate 210 ) Penetrates the fixing hole 215 and abuts against the end of the second coupling protrusion 245 of the second pendulum 140.
  • welding is performed on the bonding surface in the state where the ends of the first and second coupling protrusions 125 and 145 come into contact with each other.
  • the welding method may be, for example, projection welding.
  • the projection welding applies a pressure by contacting a protrusion made of a joint of a metal member, and a constant resistance to limit the generation of resistance heat through a current to a relatively small specific portion (end of the coupling protrusion 125 in this embodiment).
  • welding method we say welding method.

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

Abstract

La présente invention concerne un amortisseur pendulaire d'un convertisseur de couple de véhicule, l'amortisseur pendulaire étant disposé dans le convertisseur de couple de véhicule de manière à amortir les vibrations et l'impact dans la direction de rotation du convertisseur de couple et, plus spécifiquement, un amortisseur pendulaire dans lequel une paire de pendules sont couplés à une plaque de support et fixés en étant joints l'un à l'autre, et un convertisseur de couple de véhicule le comprenant.
PCT/KR2019/018632 2018-12-28 2019-12-27 Amortisseur pendulaire et convertisseur de couple de véhicule le comprenant WO2020139033A2 (fr)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
KR10-2018-0172717 2018-12-28
KR20180172717 2018-12-28
KR1020190004753A KR102190131B1 (ko) 2018-12-28 2019-01-14 진자 댐퍼 및 이를 포함하는, 차량용 토크 컨버터
KR10-2019-0004753 2019-01-14

Publications (2)

Publication Number Publication Date
WO2020139033A2 true WO2020139033A2 (fr) 2020-07-02
WO2020139033A3 WO2020139033A3 (fr) 2020-12-17

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Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2015113877A (ja) * 2013-12-10 2015-06-22 トヨタ自動車株式会社 振動低減装置
JP5928515B2 (ja) * 2014-04-04 2016-06-01 トヨタ自動車株式会社 捩り振動低減装置
FR3027362B1 (fr) * 2014-10-17 2016-11-04 Valeo Embrayages Systeme d'amortissement pendulaire equipe d'un organe de support presentant des pistes de roulement juxtaposees en continu autour de l'axe de rotation
DE102015215269A1 (de) * 2015-08-11 2017-02-16 Schaeffler Technologies AG & Co. KG Fliehkraftpendeleinrichtung
DE102016215295A1 (de) * 2016-08-17 2018-02-22 Schaeffler Technologies AG & Co. KG Fliehkraftpendel

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