CN116241607A - Shock absorber, power assembly and vehicle - Google Patents

Shock absorber, power assembly and vehicle Download PDF

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Publication number
CN116241607A
CN116241607A CN202111487333.8A CN202111487333A CN116241607A CN 116241607 A CN116241607 A CN 116241607A CN 202111487333 A CN202111487333 A CN 202111487333A CN 116241607 A CN116241607 A CN 116241607A
Authority
CN
China
Prior art keywords
flange
centrifugal
block
rotating
piece
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN202111487333.8A
Other languages
Chinese (zh)
Inventor
王重
廖留钒
高嘉
华煜
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.)
Changzhou Byd Automobile Co ltd
BYD Co Ltd
Original Assignee
Changzhou Byd Automobile Co ltd
BYD 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 Changzhou Byd Automobile Co ltd, BYD Co Ltd filed Critical Changzhou Byd Automobile Co ltd
Priority to CN202111487333.8A priority Critical patent/CN116241607A/en
Publication of CN116241607A publication Critical patent/CN116241607A/en
Pending 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
    • 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
    • F16F15/1232—Wound springs characterised by the spring mounting
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D43/00—Automatic clutches
    • F16D43/02—Automatic clutches actuated entirely mechanically
    • F16D43/20—Automatic clutches actuated entirely mechanically controlled by torque, e.g. overload-release clutches, slip-clutches with means by which torque varies the clutching pressure
    • F16D43/21—Automatic clutches actuated entirely mechanically controlled by torque, e.g. overload-release clutches, slip-clutches with means by which torque varies the clutching pressure with friction members
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D43/00—Automatic clutches
    • F16D43/02—Automatic clutches actuated entirely mechanically
    • F16D43/20—Automatic clutches actuated entirely mechanically controlled by torque, e.g. overload-release clutches, slip-clutches with means by which torque varies the clutching pressure
    • F16D43/21—Automatic clutches actuated entirely mechanically controlled by torque, e.g. overload-release clutches, slip-clutches with means by which torque varies the clutching pressure with friction members
    • F16D43/213—Automatic clutches actuated entirely mechanically controlled by torque, e.g. overload-release clutches, slip-clutches with means by which torque varies the clutching pressure with friction members with axially applied torque-limiting friction surfaces
    • F16D43/215—Automatic clutches actuated entirely mechanically controlled by torque, e.g. overload-release clutches, slip-clutches with means by which torque varies the clutching pressure with friction members with axially applied torque-limiting friction surfaces with flat friction surfaces, e.g. discs
    • 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
    • F16F15/02—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems
    • F16F15/04—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems using elastic means
    • F16F15/046—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems using elastic means using combinations of springs of different kinds
    • 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
    • F16F15/02—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems
    • F16F15/04—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems using elastic means
    • F16F15/06—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems using elastic means with metal springs
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • 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
    • F16F15/127—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 using plastics springs combined with other types of springs
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • 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
    • F16F15/32—Correcting- or balancing-weights or equivalent means for balancing rotating bodies, e.g. vehicle wheels

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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 Dampers (AREA)

Abstract

The invention discloses a shock absorber, a power assembly and a vehicle, comprising: a mass disc adapted to be coupled to an engine, the mass disc having a first rotating portion; the centrifugal pendulum assembly comprises a flange and a first centrifugal block, the flange is provided with a second rotating part, the second rotating part is pushed by the first rotating part to drive the flange to rotate when the mass disc rotates, and the first centrifugal block is slidably arranged on the flange along the rotating direction of the flange; the vibration-damping elastic piece is positioned between the first rotating part and the second rotating part, and is compressed by the first rotating part and the second rotating part to transmit the power for driving the flange to rotate; the torque limiting assembly is suitable for being connected with a gearbox, the torque limiting assembly is attached to the flange, and the torque limiting assembly limits the maximum torque transmitted to the gearbox through friction force between the torque limiting assembly and the flange. The damper provided by the embodiment of the invention not only can realize the torsion limiting function, but also has the advantages of good damping effect, stable torque transmission and the like.

Description

Shock absorber, power assembly and vehicle
Technical Field
The invention relates to the technical field of vehicles, in particular to a shock absorber, a power assembly and a vehicle.
Background
The shock absorber is mainly applied to a power assembly system of an automobile, is usually arranged on a part between an engine and a gearbox, and provides the shock absorbing and noise reducing functions for the automobile. However, the shock absorber in the related art has poor shock absorbing effect and unstable torque transmission due to unreasonable structure.
Disclosure of Invention
The present invention aims to solve at least one of the technical problems existing in the prior art. Therefore, an object of the present invention is to provide a damper that not only can realize a torsion limiting function, but also has advantages of good damping effect, stable torque transmission, and the like.
The invention also provides a power assembly with the shock absorber.
The invention further provides a vehicle with the power assembly.
In order to achieve the above object, an embodiment according to a first aspect of the present invention provides a shock absorber, including: a mass disc adapted to be coupled to an engine, the mass disc having a first rotating portion; the centrifugal pendulum assembly comprises a flange and a first centrifugal block, the flange is provided with a second rotating part, the second rotating part is pushed by the first rotating part to drive the flange to rotate when the mass disc rotates, and the first centrifugal block is slidably arranged on the flange along the rotating direction of the flange; the vibration reduction elastic piece is positioned between the first rotating part and the second rotating part, and is compressed by the first rotating part and the second rotating part to transmit power for driving the flange to rotate; the torque limiting assembly is suitable for being connected with a gearbox, the torque limiting assembly is fit with the flange, and the torque limiting assembly limits the maximum torque transmitted to the gearbox through friction force between the torque limiting assembly and the flange.
The damper provided by the embodiment of the invention not only can realize the torsion limiting function, but also has the advantages of good damping effect, stable torque transmission and the like.
According to some embodiments of the invention, a side of the mass disc facing the centrifugal pendulum assembly is provided with a mounting groove; the first rotating part is arranged in the mounting groove and comprises a first rotating block and a second rotating block which are arranged at intervals along the circumferential direction of the mass disc; at least part of the second rotating part is positioned in the mounting groove and comprises a first rotating lug and a second rotating lug which are arranged at intervals along the circumferential direction of the flange; the vibration reduction elastic pieces are multiple and comprise a first vibration reduction elastic piece and a second vibration reduction elastic piece, the first rotating block and the second rotating lug are arranged between one end of the first vibration reduction elastic piece and one end of the second vibration reduction elastic piece, and the second rotating block and the first rotating lug are arranged between the other end of the first vibration reduction elastic piece and the other end of the second vibration reduction elastic piece; the first rotating part and the second rotating part are staggered in the axial direction of the damper, and the first damping elastic piece and the second damping elastic piece are overlapped with the first rotating block, the second rotating block, the first rotating lug and the second rotating lug in the axial direction of the damper.
According to some embodiments of the invention, a side of the mass disc facing the centrifugal pendulum assembly is provided with a chute structure configured with a chute extending in the circumferential direction of the mass disc, and the vibration damping elastic element is arranged in the chute of the chute structure.
According to some embodiments of the invention, the opening of the chute structure is directed towards the axis of the mass disc.
According to some embodiments of the invention, a side of the mass disc facing the centrifugal pendulum assembly is provided with a mounting groove; the first rotating part is arranged in the mounting groove and comprises a first rotating block and a second rotating block which are arranged at intervals along the circumferential direction of the mass disc; the plurality of chute structures comprise a first chute piece and a second chute piece, one end of the first chute piece and one end of the second chute piece are propped against two sides of the first rotating block in the circumferential direction of the mass disc, and the other end of the first chute piece and the other end of the second chute piece are propped against two sides of the second rotating block in the circumferential direction of the mass disc.
According to some embodiments of the invention, the vibration damping elastic member is an arc spring.
According to some embodiments of the invention, the centrifugal pendulum assembly further comprises: the guide slide column is arranged on the flange, a first slide way extending along the rotation direction of the guide slide column is arranged on the flange, a second slide way extending along the rotation direction of the flange is arranged on the first centrifugal block, and the guide slide column penetrates through the first slide way and the second slide way.
According to some embodiments of the invention, the first centrifugal block comprises a first sub-centrifugal block and a second sub-centrifugal block which are connected, the first sub-centrifugal block and the second sub-centrifugal block are respectively arranged on two axial sides of the flange and clamp the flange, the first sub-centrifugal block and the second sub-centrifugal block are respectively provided with the second slideway, and the guide slide column passes through the first slideway, the second slideway of the first sub-centrifugal block and the second slideway of the second sub-centrifugal block.
According to some embodiments of the invention, the centrifugal pendulum assembly further comprises: the centrifugal device comprises a first centrifugal block, a second centrifugal block and a third centrifugal block, wherein the first centrifugal block is arranged on one side of the first centrifugal block, which faces the first centrifugal block, and the third centrifugal block is arranged on one side of the second centrifugal block, which faces the third centrifugal block, and a gap is formed in the outer peripheral surface of the flange so as to avoid the first centrifugal block and the third centrifugal block.
According to some embodiments of the invention, the centrifugal pendulum assembly further comprises: the buffer piece, the buffer piece is located the second centrifugation piece with dodge between the inner wall of breach and the third centrifugation piece with dodge between the inner wall of breach, the buffer piece is equipped with the holding tank, the inner wall of holding tank is equipped with the draw-in table, the second centrifugation piece with the third centrifugation piece all is equipped with the draw-in groove, the second centrifugation piece with the third centrifugation piece stretches into the holding tank, the draw-in table inserts in the draw-in groove of second centrifugation piece with in the draw-in groove of third centrifugation piece.
According to some embodiments of the invention, the dimension of the buffer in the circumferential direction of the flange is gradually reduced radially inwards of the flange.
According to some embodiments of the invention, the centrifugal pendulum assembly further comprises: the limiting piece is arranged on the flange, two ends of the limiting piece protrude out of two axial sides of the flange respectively, and the limiting piece is located between the first sub-centrifugal block and the second sub-centrifugal block.
According to some embodiments of the invention, the limiting member is a plurality of limiting members and includes a first limiting member and a second limiting member, the first limiting member and the second limiting member being disposed adjacent to two ends of the first centrifugal block, respectively.
According to some embodiments of the invention, the guide strut is a plurality and comprises a first guide strut and a second guide strut, the first guide strut and the second guide strut being disposed adjacent to two ends of the first centrifugal mass, respectively.
According to some embodiments of the invention, the first centrifugal block is a plurality of centrifugal blocks arranged at intervals along the circumference of the flange.
According to some embodiments of the invention, the shock absorber further comprises: the cushion block is connected with the mass disc and is positioned between the mass disc and the centrifugal pendulum assembly; the support disc is connected to one side of the cushion block, which is opposite to the mass disc, and the centrifugal pendulum assembly is sleeved on the support disc; the elastic friction gasket is sleeved on the outer peripheral surface of the supporting disc and clamped between the centrifugal pendulum assembly and the cushion block.
According to some embodiments of the invention, the torque limiting assembly comprises: the transmission connection part is suitable for being in transmission connection with the gearbox; the first friction plate is connected to one side of the transmission connecting part, which faces the flange, and is attached to the flange.
According to some embodiments of the invention, the shock absorber further comprises: the metal sheet is attached to one side, back to the centrifugal pendulum assembly, of the torque limiting assembly, and a second friction plate is arranged between the metal sheet and the torque limiting assembly; one end of the disc spring is propped against one side of the metal sheet, which is opposite to the torsion limiting assembly; and the fixed bracket is stopped against the other end of the belleville spring and is connected with the flange.
According to some embodiments of the invention, the shock absorber further comprises: the diaphragm spring is stopped against one side of the fixed bracket, which is opposite to the belleville spring; one end of the sealing ring is propped against one side of the diaphragm spring, which is opposite to the fixed bracket; and the cover disc is stopped against the other end of the sealing ring and is connected with the mass disc.
According to a second aspect of the present invention, there is provided a powertrain comprising: an engine and a gearbox; a damper according to an embodiment of the first aspect of the present invention.
According to the power assembly of the second aspect of the embodiment of the invention, by utilizing the shock absorber of the first aspect of the embodiment of the invention, not only can the torsion limiting function be realized, but also the shock absorber has the advantages of good shock absorbing effect, stable torque transmission and the like.
According to a third aspect of the invention an embodiment is presented of a vehicle comprising a powertrain according to the second aspect of the invention.
According to the vehicle of the embodiment of the third aspect of the invention, by utilizing the power assembly according to the embodiment of the second aspect of the invention, not only the torque limiting function can be realized, but also the advantages of good vibration reduction effect, stable torque transmission and the like are achieved.
Additional aspects and advantages of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention.
Drawings
The foregoing and/or additional aspects and advantages of the invention will become apparent and may be better understood from the following description of embodiments taken in conjunction with the accompanying drawings in which:
Fig. 1 is an exploded view of a shock absorber according to an embodiment of the present invention.
Fig. 2 is a cross-sectional view of a shock absorber according to an embodiment of the present invention.
Fig. 3 is a schematic structural view of a centrifugal pendulum assembly of a shock absorber in accordance with an embodiment of the present invention.
FIG. 4 is an exploded view of a centrifugal pendulum assembly of a shock absorber in accordance with an embodiment of the present invention.
Fig. 5 is a schematic structural view of a buffering member of a shock absorber according to an embodiment of the present invention.
Fig. 6 is a schematic structural view of a third centrifugal block of the shock absorber according to an embodiment of the present invention.
Reference numerals:
a shock absorber 1,
A mass disc 100, a first rotating part 110, a first rotating block 111, a second rotating block 112, a mounting groove 120, a chute structure 130, a chute 131, a first chute member 132, a second chute member 133,
Centrifugal pendulum assembly 200, flange 210, second rotating portion 211, first rotating lug 212, second rotating lug 213, first slide 214, avoidance gap 215,
A first centrifugal block 220, a second slide 221, a first sub-centrifugal block 212, a second sub-centrifugal block 213,
A guide spool 230, a first guide spool 231, a second guide spool 232,
A second centrifugal block 240, a third centrifugal block 250, a clamping groove 251,
Buffer member 260, accommodation groove 261, clamping table 262, stopper 270, first stopper 271, second stopper 272,
Vibration damping elastic member 300, first vibration damping elastic member 310, second vibration damping elastic member 320,
Torque limiter assembly 400, drive connection 410, first friction plate 420, second friction plate 430,
A cushion block 500, a supporting disk 510, an elastic friction washer 520,
Sheet metal 600, belleville springs 700, mounting bracket 800, diaphragm spring 900, sealing ring 910, and cover plate 920.
Detailed Description
Embodiments of the present invention will be described in detail below, by way of example with reference to the accompanying drawings.
In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the device or element being referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present invention.
In the description of the present invention, "plurality" means two or more.
A shock absorber 1 according to an embodiment of the present invention is described below with reference to the accompanying drawings.
As shown in fig. 1 to 6, a shock absorber 1 according to an embodiment of the present invention includes a mass disc 100, a centrifugal pendulum assembly 200, a damping spring 300, and a torsion limiting assembly 400.
The mass disc 100 is suitable for being connected with an engine, the mass disc 100 is provided with a first rotating part 110, the centrifugal pendulum assembly 200 comprises a flange 210 and a first centrifugal block 220, the flange 210 is provided with a second rotating part 211, the second rotating part 211 is pushed by the first rotating part 110 to drive the flange 210 to rotate when the mass disc 100 rotates, the first centrifugal block 220 is slidably arranged on the flange 210 along the rotating direction of the flange 210, the vibration-damping elastic piece 300 is positioned between the first rotating part 110 and the second rotating part 211, the vibration-damping elastic piece 300 is compressed by the first rotating part 110 and the second rotating part 211 to transmit power for driving the flange 210 to rotate, the torque limiting assembly 400 is suitable for being connected with a gearbox, the torque limiting assembly 400 is attached to the flange 210, and the maximum torque transmitted to the gearbox is limited by the friction force between the torque limiting assembly 400 and the flange 210.
It should be noted that, the first centrifugal block 220 is slidably mounted to the flange 210 along the rotation direction of the flange 210, which means that the first centrifugal block 220 can move along the same direction as the rotation direction of the flange 210 relative to the flange 210, and the first centrifugal block 220 can move along the opposite direction to the rotation direction of the flange 210 relative to the flange 210.
For example, the vibration damping elastic member 300 may be an arc spring. The vibration damping elastic piece 300 is convenient to adapt to the shape of the mass disc 100, the arc-shaped spring can stably transfer force when the mass disc 100 and the flange 210 rotate, the relative torsion angle between the mass disc 100 and the flange 210 is relatively large, and the vibration isolation effect of the whole vibration damper 1 is better.
According to the damper 1 of the embodiment of the present invention, by connecting the mass disc 100 with the engine, when the mass disc 100 rotates, the first rotating portion 110 pushes the second rotating portion 211 to drive the flange 210 to rotate, the torque limiting assembly 400 is connected with the gearbox and is attached to the flange 210, for example, the mass disc 100 is connected with the crankshaft of the engine, and the torque limiting assembly 400 is connected with the input shaft of the gearbox, so that the torque output by the engine can be transmitted to the gearbox through the mass disc 100, the flange 210 and the torque limiting assembly 400, and power transmission of the vehicle is realized.
In addition, the torque limiter 400 limits the maximum torque transmitted to the gearbox through the friction between the torque limiter 400 and the flange 210, so that the torque between the torque limiter 400 and the flange 210 can not exceed the friction torque between the torque limiter 400 and the flange 210, the torque between the engine and the gearbox can be transmitted, namely the friction torque between the torque limiter 400 and the flange 210, the torque output by the engine or the gearbox exceeds the friction torque between the torque limiter 400 and the flange 210, slipping occurs between the torque limiter 400 and the flange 210, excessive torque transmission between the engine and the gearbox can be avoided through the torque limiter 400, when the vehicle is a hybrid vehicle, the starting torque of a motor of the vehicle can be very high, if the torque limiter 400 is not arranged, the torque of the motor can be transmitted to a crankshaft of the engine, so that the damage to the crankshaft can be caused, and the torque limiter 400 can reduce the damage probability of the shock absorber 1, the engine and the gearbox, and prolong the service life of the vehicle.
In addition, when the mass disc 100 rotates, the first rotating part 110 pushes the second rotating part 211 to drive the flange 210 to rotate, the damping elastic member 300 is positioned between the first rotating part 110 and the second rotating part 211, and the damping elastic member 300 is compressed by the first rotating part 110 and the second rotating part 211 to transmit the power for driving the flange 210 to rotate, so that the damping elastic member 300 can transmit the power between the first rotating part 110 and the second rotating part 211, namely, the power transmission between the mass disc 100 and the flange 210 is realized, and the damping elastic member 300 can absorb the vibration generated by the sudden change of the rotating speed of the mass disc 100 or the flange 210 (such as sudden acceleration, sudden deceleration or sudden stop of the vehicle), thereby enabling the transmission torque between the engine and the gearbox to be smoother and the generated noise to be smaller.
In addition, the first centrifugal block 220 is slidably mounted to the flange 210 along the rotation direction of the flange 210, so that when the rotation speed of the flange 210 changes, the first centrifugal block 220 moves along the opposite direction of the acceleration of the flange 210 due to the inertia effect, thereby realizing the effect of inhibiting the rotation speed change of the flange 210, further inhibiting the rotation speed change of the mass disc 100, the torque limiting assembly 400, the engine and the gearbox, further reducing the vibration of the mass disc 100, the torque limiting assembly 400, the engine and the gearbox, enabling the torque transmission between the engine and the gearbox to be smoother and generating less noise.
Thus, the damper 1 according to the embodiment of the invention not only can realize the torsion limiting function, but also has the advantages of good damping effect, stable torque transmission and the like.
According to some embodiments of the present invention, as shown in fig. 1, a mounting groove 120 is provided at a side of the mass disc 100 facing the centrifugal force pendulum assembly 200, and a first rotating part 110 is provided in the mounting groove 120 and includes a first rotating block 111 and a second rotating block 112 which are spaced apart along a circumferential direction of the mass disc 100, and at least a portion of a second rotating part 211 is provided in the mounting groove 120 and includes a first rotating ear 212 and a second rotating ear 213 which are spaced apart along the circumferential direction of the flange 210.
The vibration damping elastic members 300 are multiple and include a first vibration damping elastic member 310 and a second vibration damping elastic member 320, a first rotating block 111 and a second rotating ear 213 are disposed between one end of the first vibration damping elastic member 310 and one end of the second vibration damping elastic member 320, and a second rotating block 112 and a first rotating ear 212 are disposed between the other end of the first vibration damping elastic member 310 and the other end of the second vibration damping elastic member 320.
The first rotating portion 110 and the second rotating portion 211 are offset in the axial direction of the damper 1, that is, the first rotating portion 110 and the second rotating portion 211 do not interfere with each other in the process of assuming that the mass disk 100 and the flange 210 are 360 ° opposite to each other. Also, both the first vibration damping elastic member 310 and the second vibration damping elastic member 320 overlap the first rotating block 111, the second rotating block 112, the first rotating ear 212, and the second rotating ear 213 in the axial direction of the vibration damper 1, that is, in the process of facing the mass disc 100 and the flange 210, both the first rotating block 111, the second rotating block 112, the first rotating ear 212, and the second rotating ear 213 can be in contact with the first vibration damping elastic member 310 and the second vibration damping elastic member 320.
Assuming that the two ends of the first vibration damping elastic member 310 respectively abut against the first rotating lug 212 and the first rotating block 111 during the rotation of the flange 210 relative to the mass disc 100 in the first direction, and the two ends of the second vibration damping elastic member 320 respectively abut against the second rotating lug 213 and the second rotating block 112 during the rotation of the flange 210 relative to the mass disc 100 in the second direction, the two ends of the second vibration damping elastic member 320 respectively abut against the first rotating lug 212 and the first rotating block 111, and the two ends of the first vibration damping elastic member 310 respectively abut against the second rotating lug 213 and the second rotating block 112, wherein the first direction and the second direction are opposite directions in the circumferential direction of the vibration damper 1.
Thus, no matter how the flange 210 and the mass disc 100 relatively rotate, power transmission between the flange 210 and the mass disc 100 can be realized, an effect of reducing vibration can be generated, and the two vibration reduction elastic members 300 are arranged, so that the vibration reduction effect can be increased, and the force transmission is stable.
According to some embodiments of the present invention, as shown in fig. 1, a side of the mass disc 100 facing the centrifugal force pendulum assembly 200 is provided with a chute structure 130, the chute structure 130 is configured with a chute 131 extending along the circumferential direction of the mass disc 100, and the vibration damping elastic member 300 is provided in the chute 131 of the chute structure 130. The damping elastic member 300 may be attached to an inner wall of the chute 131, and the chute 131 may play a guiding role for movement of the damping elastic member 300, so that the damping elastic member 300 moves in the mass block according to a specified arc track.
Optionally, the opening of the chute 131 of the chute structure 130 is oriented towards the axis of the mass disc 100. Thus, the vibration damping elastic piece 300 is not easy to separate from the chute 131, a sealing structure is not needed, the number of parts is small, and the cost and the weight are low.
Further, a mounting groove 120 is formed in one side of the mass disc 100 facing the centrifugal pendulum assembly 200, the first rotating portion 110 is disposed in the mounting groove 120 and includes a first rotating block 111 and a second rotating block 112 disposed at intervals along the circumferential direction of the mass disc 100, the chute structure 130 includes a plurality of first chute pieces 132 and second chute pieces 133, one end of the first chute pieces 132 and one end of the second chute pieces 133 are stopped at two sides of the first rotating block 111 in the circumferential direction of the mass disc 100, and the other end of the first chute pieces 132 and the other end of the second chute pieces 133 are stopped at two sides of the second rotating block 112 in the circumferential direction of the mass disc 100.
For example, the chute structure 130 and the mass disc 100 may be separately disposed, and the first rotating block 111 and the second rotating block 112 may define positions of the first chute member 132 and the second chute member 133 in the circumferential direction of the mass disc 100, where the first chute member 132 and the second chute member 133 do not exceed the first rotating block 111 and the second rotating block 112 in the axial direction of the mass disc 100, i.e., the first chute member 132 and the second chute member 133 do not contact the flange 210 when the flange 210 rotates relative to the mass disc 100.
In this way, the first slide groove 132 can provide guidance for the first damping spring 310, the second slide groove 133 can provide guidance for the second damping spring 320, and the force transmission of the damper 1 is more stable.
According to some embodiments of the present invention, as shown in fig. 3 and 4, the centrifugal force pendulum assembly 200 further includes a guide post 230, the flange 210 is provided with a first slide 214 extending in a rotation direction thereof, the first centrifugal mass 220 is provided with a second slide 221 extending in the rotation direction of the flange 210, and the guide post 230 passes through the first slide 214 and the second slide 221.
It should be noted that, the rotation direction of the flange 210 is the circumferential direction of the flange 210, the first slide 214 and the second slide 221 extend along the circumferential direction of the flange 210 and have fluctuations in the radial direction of the flange 210, that is, the distance between the center line of the first slide 214 and the center of the flange 210 is not constant, and the distance between the center line of the second slide 221 and the center of the flange 210 is not constant, so that the first centrifugal block 220 will generate a centrifugal effect when sliding relative to the flange 210.
This not only enables the relative sliding between the flange 210 and the first centrifugal block 220, but also enables the stable connection between the flange 210 and the first centrifugal block 220.
Wherein the guide strut 230 is plural and includes a first guide strut 231 and a second guide strut 232, and the first guide strut 231 and the second guide strut 232 are disposed adjacent to two ends of the first centrifugal block 220, respectively. Thus, both ends of the first centrifugal block 220 are fixed to the flange 210, the first centrifugal block 220 does not rotate relative to the flange 210 around the guide sliding column 230, the relative positions of the first centrifugal block 220 and the flange 210 are more stable, and the sliding of the first centrifugal block 220 relative to the flange 210 is smoother.
Further, the first centrifugal block 220 includes a first sub-centrifugal block 212 and a second sub-centrifugal block 213 connected, the first sub-centrifugal block 212 and the second sub-centrifugal block 213 are respectively disposed at two axial sides of the flange 210 and clamp the flange 210, the first sub-centrifugal block 212 and the second sub-centrifugal block 213 are respectively provided with a second slide 221, and the guiding slide 230 passes through the first slide 214, the second slide 221 of the first sub-centrifugal block 212 and the second slide 221 of the second sub-centrifugal block 213.
For example, the guide strut 230 may be divided into three sections, the diameter of the middle section of the guide strut 230 is larger than that of the two end sections of the guide strut 230, the middle section of the guide strut 230 extends into the first slideway 214, the two end sections of the guide strut 230 extend into the second slideway 221 of the first sub-centrifugal block 212 and the second slideway 221 of the second sub-centrifugal block 213, respectively, and the middle section of the guide strut 230 is fixed with the flange 210.
In this way, the first centrifugal block 220 is more uniformly distributed on two axial sides of the flange 210, and since the two ends of the guide slide column 230 move relatively to the flange 210 at the same time, the guide slide column 230 cannot deflect relatively to the flange 210, the relative positions of the first centrifugal block 220 and the flange 210 are more stable, and the sliding of the first centrifugal block 220 relatively to the flange 210 is smoother.
Optionally, the centrifugal pendulum assembly 200 further includes a second centrifugal block 240 and a third centrifugal block 250, the second centrifugal block 240 is mounted on a side of the first sub-centrifugal block 212 facing the second sub-centrifugal block 213, the third centrifugal block 250 is mounted on a side of the second sub-centrifugal block 213 facing the third sub-centrifugal block, and an avoidance gap 215 is formed on an outer peripheral surface of the flange 210 to avoid the second centrifugal block 240 and the third centrifugal block 250.
In this way, the second centrifugal block 240 and the third centrifugal block 250 can increase the overall mass of the first centrifugal block 220, the second centrifugal block 240 and the third centrifugal block 250, so as to improve the motion inertia of the first centrifugal block 220, the second centrifugal block 240 and the third centrifugal block 250, to more effectively prevent the rotation speed of the flange 210 from changing, ensure that the vibration amplitude of the shock absorber 1 is small, and further reduce the vibration of the transmission system, so that the torque transmission of the transmission system is reliable. In addition, the arrangement of the avoidance notch 215 can reduce the collision probability of the second centrifugal block 240 and the third centrifugal block 250 and the flange 210, and ensure that the second centrifugal block 240 and the third centrifugal block 250 move smoothly.
Still further, as shown in fig. 4-6, the centrifugal force pendulum assembly 200 further includes a buffer member 260, the buffer member 260 is located between the second centrifugal force block 240 and the inner wall of the avoidance gap 215 and between the third centrifugal force block 250 and the inner wall of the avoidance gap 215, the buffer member 260 is provided with a receiving groove 261, the inner wall of the receiving groove 261 is provided with a clamping table 262, the second centrifugal force block 240 and the third centrifugal force block 250 are respectively provided with a clamping groove 251, the second centrifugal force block 240 and the third centrifugal force block 250 extend into the receiving groove 261, and the clamping table 262 is inserted into the clamping groove 251 of the second centrifugal force block 240 and the clamping groove 251 of the third centrifugal force block 250.
For example, the buffer member 260 may be a rubber member, and the second centrifugal block 240 and the third centrifugal block 250 may contact with the flange 210 through the buffer member 260, so that, on one hand, collision between the second centrifugal block 240 and the third centrifugal block 250 and the flange 210 is avoided when the second centrifugal block 240 and the third centrifugal block 250 move reversely with the flange 210, and the buffer member 260 may form a buffer between the second centrifugal block 240 and the third centrifugal block 250 and the flange 210, and on the other hand, it may be ensured that the first centrifugal block 220, the second centrifugal block 240 and the third centrifugal block 250 may act on the flange 210 to prevent the rotation speed of the flange 210 from changing, and ensure the rotation stability of the damper 1, so as to ensure stable torque transmission between the engine and the gearbox.
In addition, the arrangement of the clamping table 262 and the clamping groove 251 ensures that the buffer member 260, the second centrifugal block 240 and the third centrifugal block 250 are connected stably and reliably.
Specifically, as shown in fig. 5, the size of the buffer 260 in the circumferential direction of the flange 210 gradually decreases inward in the radial direction of the flange 210.
In this way, the contact area between the buffer member 260 and the second centrifugal block 240 and the third centrifugal block 250 is large, so that the connection strength between the buffer member 260 and the second centrifugal block 240 and the third centrifugal block 250 is high, and the connection is stable, and the contact area between the buffer member 260 and the flange 210 is small, so that the friction resistance between the buffer member 260 and the flange 210 is reduced, the first centrifugal block 220, the second centrifugal block 240 and the third centrifugal block 250 can move relative to the flange 210, and the arc surfaces of the buffer member 260 and the flange 210 are more adhered, and in addition, the opposite sides of the buffer member 260 are equal in corresponding central angles, so that the assembly and the flange 210 are facilitated.
In some embodiments of the present invention, as shown in fig. 4, the centrifugal force pendulum assembly 200 further includes a limiting member 270, wherein the limiting member 270 is mounted on the flange 210, and two ends of the limiting member 270 protrude from two axial sides of the flange 210, and the limiting member 270 is located between the first sub-centrifugal block 212 and the second sub-centrifugal block 213. Wherein, the limiting member 270 may be a plastic member.
In this way, the stopper 270 can prevent the first sub-centrifugal block 212 from being attached to the flange 210 and prevent the second sub-centrifugal block 213 from being attached to the flange 210, thereby avoiding collision between the first sub-centrifugal block 212 and the second sub-centrifugal block 213 and the flange 210.
Further, the limiting member 270 is plural and includes a first limiting member 271 and a second limiting member 272, and the first limiting member 271 and the second limiting member 272 are disposed adjacent to two ends of the first centrifugal block 220, respectively.
In this way, on one hand, the blocking of the first centrifugal block 220 by the limiting piece 270 is more uniform, so that collision between the first centrifugal block 220 and the flange 210 caused by deflection when the first centrifugal block 220 is blocked by the limiting piece 270 is avoided, and on the other hand, collision force born by each of the first limiting piece 271 and the second limiting piece 272 independently can be reduced, and the service lives of the first limiting piece 271 and the second limiting piece 272 are prolonged.
Alternatively, as shown in fig. 3, the first centrifugal block 220 is a plurality of blocks disposed at intervals along the circumferential direction of the flange 210. The plurality of first centrifugal blocks 220 may be symmetrically arranged with respect to the axis of the flange 210, so as to avoid damage to the flange 210 caused by uneven stress in the radial direction after a long time, and the plurality of first centrifugal blocks 220 may limit the acceleration change of the flange 210 together, so that the speed change of the flange 210 may be slowed down better, the vibration of the shock absorber 1 and the transmission system may be reduced, and the torque transmission of the transmission system may be smoother.
According to some embodiments of the present invention, as shown in fig. 1 and 2, the shock absorber 1 further includes a pad 500, a support plate 510, and an elastic friction washer 520, wherein the pad 500 is connected to the mass plate 100 and located between the mass plate 100 and the centrifugal force pendulum assembly 200, the support plate 510 is connected to a side of the pad 500 facing away from the mass plate 100, the centrifugal force pendulum assembly 200 is sleeved on the support plate 510, and the elastic friction washer 520 is sleeved on an outer circumferential surface of the support plate 510 and is clamped between the centrifugal force pendulum assembly 200 and the pad 500.
For example, the spacer 500 and the support plate 510 may be riveted with the mass plate 100, and the spacer 500 can increase the distance between the mass plate 100 and the flange 210 in the axial direction of the shock absorber 1, thereby preventing the first and second rotating parts 110 and 211 from colliding. Moreover, the relative positions of the elastic friction washer 520 and the support disc 510 in the circumferential direction of the support disc 510 are fixed, the elastic friction washer 520 is clamped between the centrifugal pendulum assembly 200 and the cushion block 500, on one hand, the distance between the mass disc 100 and the flange 210 in the axial direction of the shock absorber 1 can be further increased, so that collision between the first rotating part 110 and the second rotating part 211 can be better avoided, on the other hand, the elastic friction washer 520 can provide a damping force between the cushion block 500 and the flange 210, and the flange 210 and the excessive vibration amplitude of the mass disc 100 during idle running of the vehicle can be prevented, so that impact noise caused by repeated separation and lamination between the vibration damping elastic piece 300 and the flange 210 is avoided, namely, continuous lamination between the vibration damping elastic piece 300 and the flange 210 is ensured, and the NVH (noise, vibration, harshness, noise, vibration and harshness) performance of the vehicle is optimized.
According to some embodiments of the present invention, as shown in fig. 1 and 2, the torque limiting assembly 400 includes a transmission connection portion 410 and a first friction plate 420, wherein the transmission connection portion 410 is adapted to be in transmission connection with a transmission, and the first friction plate 420 is connected to a side of the transmission connection portion 410 facing the flange 210 and is fit between the flange 210. The drive connection 410 may be a splined hub provided with splines in drive connection with the input shaft of the transmission.
In other words, the first friction plate 420 is located between the transmission connection part 410 and the flange 210, for realizing synchronous rotation between the transmission connection part 410 and the flange 210, and the first friction plate 420 may be mounted on the transmission connection part 410 through a threaded fastener, since synchronous rotation is realized between the flange 210 and the transmission connection part 410 through friction torque, that is, when torque transmitted between the flange 210 and the transmission connection part 410 is not greater than friction torque between the flange 210 and the first friction plate 420, the flange 210 and the first friction plate 420 synchronously rotate, and when torque transmitted between the flange 210 and the transmission connection part 410 is greater than friction torque between the metal plate 600 and the first friction plate 420, the flange 210 and the first friction plate 420 relatively rotate.
In this way, the maximum torque that can be transmitted between the flange 210 and the transmission connection portion 410, that is, the friction torque value between the flange 210 and the transmission connection portion 410, the torque that can be transmitted between the flange 210 and the transmission connection portion 410 will not continuously increase with the increase of the torque of the input end, and the torque limiting function is provided between the flange 210 and the transmission connection portion 410, so that damage to the crankshaft of the engine caused by excessive torque can be avoided.
According to some embodiments of the present invention, as shown in fig. 1 and 2, the shock absorber 1 further includes a metal plate 600 (e.g., a steel plate), a belleville spring 700, and a fixing bracket 800, wherein the metal plate 600 is attached to a side of the torsion limiting assembly 400 facing away from the centrifugal pendulum assembly 200, a second friction plate 430 is disposed between the metal plate 600 and the torsion limiting assembly 400, one end of the belleville spring 700 is abutted against a side of the metal plate 600 facing away from the torsion limiting assembly 400, and the fixing bracket 800 is abutted against the other end of the belleville spring 700 and is connected with the flange 210.
In other words, the fixing bracket 800 and the flange 210 jointly clamp the belleville springs 700, the metal sheets 600 and the torsion limiting assembly 400, the second friction sheet 430 is located between the transmission connection portion 410 and the metal sheets 600, for achieving synchronous rotation between the transmission connection portion 410 and the metal sheets 600, the second friction sheet 430 can be mounted on the transmission connection portion 410 through the threaded fastener, and synchronous rotation is achieved between the metal sheets 600 and the transmission connection portion 410 through friction torque, namely, when torque transferred between the metal sheets 600 and the transmission connection portion 410 is greater than friction torque between the metal sheets 600 and the second friction sheets 430, the metal sheets 600 and the second friction sheets 430 synchronously rotate, and when torque transferred between the metal sheets 600 and the transmission connection portion 410 is greater than friction torque between the metal sheets 600 and the second friction sheets 430, the metal sheets 600 and the second friction sheets 430 relatively rotate.
In this way, the torque limiting function is also provided between the metal sheet 600 and the transmission connection portion 410, so that when the torque limiting function between the transmission connection portion 410 and the flange 210 fails, the connection manner between the metal sheet 600 and the transmission connection portion 410 can perform the torque limiting function, thereby improving the torque limiting reliability of the shock absorber 1.
In addition, the belleville springs 700 can elastically deform in the axial direction, when the fixing support 800 is fixed with the flange 210, the belleville springs 700 can elastically deform, so that the metal sheet 600, the torque limiting assembly 400 and the flange 210 are tightly attached, gaps among the metal sheet 600, the torque limiting assembly 400 and the flange 210 are avoided, and normal implementation of the torque limiting functions of the torque limiting assembly 400 and the flange 210 is ensured.
For example, the fixing bracket 800 is provided with a plurality of connection pins along the circumference thereof, the plurality of connection pins encircle the belleville springs 700, the metal sheet 600 and the torsion limiting assembly 400 and pass through the flange 210, and each connection pin is riveted and fixed with the flange 210 to ensure the connection stability.
Further, as shown in fig. 1 and 2, the shock absorber 1 further includes a diaphragm spring 900, a seal ring 910, and a cover plate 920, wherein the diaphragm spring 900 is abutted against a side of the fixing bracket 800 facing away from the belleville spring 700, one end of the seal ring 910 is abutted against a side of the diaphragm spring 900 facing away from the fixing bracket 800, and the cover plate 920 is abutted against the other end of the seal ring 910 and is connected with the mass plate 100.
For example, the diaphragm spring 900 may be mounted to the side of the mounting bracket 800 facing away from the belleville spring 700 by a threaded fastener (e.g., a bolt), and the seal ring 910 may be clamped by the diaphragm spring 900 and the cover plate 920, and the cover plate 920 and the mass plate 100 may be welded (e.g., laser welded) together.
On the one hand, the seal ring 910 elastically deforms, and can seal the gap between the diaphragm spring 900 and the cover disc 920, so that the sealing performance of the damper 1 is improved, lubricating oil is required between the damping elastic piece 300 and the mass disc 100 to lubricate, so that friction force is excessively large when the damping elastic piece 300 and the mass disc 100 relatively move, the damage probability of the damping elastic piece 300 and the mass disc 100 is reduced, and the seal ring 910 can prevent the lubricating oil in the damper from leaking from between the diaphragm spring 900 and the cover disc 920;
on the other hand, the sealing ring 910 can provide a damping force between the diaphragm spring 900 and the cover plate 920, and can prevent the flange 210 and the mass plate 100 from vibrating too much during idle operation of the vehicle, so as to avoid the impact noise generated by repeated separation and lamination between the vibration-damping elastic member 300 and the flange 210, that is, ensure continuous lamination between the vibration-damping elastic member 300 and the flange 210, and optimize NVH (noise, vibration, harshness, noise, vibration and harshness) performance of the vehicle.
Since the transmission connection portion 410 is required to be in transmission connection with the input shaft of the transmission, the metal plate 600, the belleville springs 700, the fixing bracket 800, the diaphragm springs 900, the seal ring 910, and the cover plate 920 are all sleeved on the input shaft.
A powertrain according to an embodiment of the present invention, including an engine, a transmission, and a shock absorber 1 according to the above-described embodiment of the present invention, will be described below with reference to the accompanying drawings.
According to the power assembly of the embodiment of the invention, by utilizing the shock absorber 1 according to the embodiment of the invention, not only the torsion limiting function can be realized, but also the advantages of good shock absorbing effect, stable torque transmission and the like are achieved.
A vehicle according to an embodiment of the present invention, which includes a powertrain according to the above-described embodiment of the present invention, is described below with reference to the accompanying drawings. Wherein the vehicle may be a hybrid vehicle.
According to the vehicle disclosed by the embodiment of the invention, by utilizing the power assembly disclosed by the embodiment of the invention, not only can the torque limiting function be realized, but also the vehicle has the advantages of good vibration reduction effect, stable torque transmission and the like.
Other constructions and operations of the shock absorber 1, the powertrain, and the vehicle according to the embodiment of the present invention are known to those of ordinary skill in the art, and will not be described in detail herein.
In the description of the present specification, reference to the terms "one embodiment," "some embodiments," "illustrative embodiments," "examples," "specific examples," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiments or examples.
While embodiments of the present invention have been shown and described, it will be understood by those of ordinary skill in the art that: many changes, modifications, substitutions and variations may be made to the embodiments without departing from the spirit and principles of the invention, the scope of which is defined by the claims and their equivalents.

Claims (21)

1. A shock absorber, comprising:
a mass disc adapted to be coupled to an engine, the mass disc having a first rotating portion;
the centrifugal pendulum assembly comprises a flange and a first centrifugal block, the flange is provided with a second rotating part, the second rotating part is pushed by the first rotating part to drive the flange to rotate when the mass disc rotates, and the first centrifugal block is slidably arranged on the flange along the rotating direction of the flange;
The vibration reduction elastic piece is positioned between the first rotating part and the second rotating part, and is compressed by the first rotating part and the second rotating part to transmit power for driving the flange to rotate;
the torque limiting assembly is suitable for being connected with a gearbox, the torque limiting assembly is fit with the flange, and the torque limiting assembly limits the maximum torque transmitted to the gearbox through friction force between the torque limiting assembly and the flange.
2. The shock absorber of claim 1 wherein a side of said mass disk facing said centrifugal pendulum assembly is provided with a mounting groove;
the first rotating part is arranged in the mounting groove and comprises a first rotating block and a second rotating block which are arranged at intervals along the circumferential direction of the mass disc;
at least part of the second rotating part is positioned in the mounting groove and comprises a first rotating lug and a second rotating lug which are arranged at intervals along the circumferential direction of the flange;
the vibration reduction elastic pieces are multiple and comprise a first vibration reduction elastic piece and a second vibration reduction elastic piece, the first rotating block and the second rotating lug are arranged between one end of the first vibration reduction elastic piece and one end of the second vibration reduction elastic piece, and the second rotating block and the first rotating lug are arranged between the other end of the first vibration reduction elastic piece and the other end of the second vibration reduction elastic piece;
The first rotating part and the second rotating part are staggered in the axial direction of the damper, and the first damping elastic piece and the second damping elastic piece are overlapped with the first rotating block, the second rotating block, the first rotating lug and the second rotating lug in the axial direction of the damper.
3. The shock absorber of claim 1 wherein a side of said mass disk facing said centrifugal pendulum assembly is provided with a chute structure configured with a chute extending circumferentially of said mass disk, said shock absorbing resilient member being disposed within a chute of said chute structure.
4. A damper according to claim 3, wherein the opening of the chute structure is directed towards the axis of the mass disc.
5. The shock absorber of claim 4 wherein a side of said mass disk facing said centrifugal pendulum assembly is provided with a mounting groove;
the first rotating part is arranged in the mounting groove and comprises a first rotating block and a second rotating block which are arranged at intervals along the circumferential direction of the mass disc;
the plurality of chute structures comprise a first chute piece and a second chute piece, one end of the first chute piece and one end of the second chute piece are propped against two sides of the first rotating block in the circumferential direction of the mass disc, and the other end of the first chute piece and the other end of the second chute piece are propped against two sides of the second rotating block in the circumferential direction of the mass disc.
6. The shock absorber of claim 1 wherein said shock absorbing resilient member is an arcuate spring.
7. The shock absorber of claim 1 wherein said centrifugal pendulum assembly further comprises:
the guide slide column is arranged on the flange, a first slide way extending along the rotation direction of the guide slide column is arranged on the flange, a second slide way extending along the rotation direction of the flange is arranged on the first centrifugal block, and the guide slide column penetrates through the first slide way and the second slide way.
8. The shock absorber of claim 7 wherein said first centrifugal mass comprises first and second connected sub-centrifugal masses, said first and second sub-centrifugal masses being disposed on axially opposite sides of said flange and clamping said flange, said first and second sub-centrifugal masses each being provided with said second slide, said guide strut passing through said first slide, said second slide of said first sub-centrifugal mass, and said second slide of said second sub-centrifugal mass.
9. The shock absorber of claim 8 wherein said centrifugal pendulum assembly further comprises:
the centrifugal device comprises a first centrifugal block, a second centrifugal block and a third centrifugal block, wherein the first centrifugal block is arranged on one side of the first centrifugal block, which faces the first centrifugal block, and the third centrifugal block is arranged on one side of the second centrifugal block, which faces the third centrifugal block, and a gap is formed in the outer peripheral surface of the flange so as to avoid the first centrifugal block and the third centrifugal block.
10. The shock absorber of claim 9 wherein said centrifugal pendulum assembly further comprises:
the buffer piece, the buffer piece is located the second centrifugation piece with dodge between the inner wall of breach and the third centrifugation piece with dodge between the inner wall of breach, the buffer piece is equipped with the holding tank, the inner wall of holding tank is equipped with the draw-in table, the second centrifugation piece with the third centrifugation piece all is equipped with the draw-in groove, the second centrifugation piece with the third centrifugation piece stretches into the holding tank, the draw-in table inserts in the draw-in groove of second centrifugation piece with in the draw-in groove of third centrifugation piece.
11. The shock absorber according to claim 10, wherein a dimension of said cushioning member in a circumferential direction of said flange is gradually reduced radially inward of said flange.
12. The shock absorber of claim 8 wherein said centrifugal pendulum assembly further comprises:
the limiting piece is arranged on the flange, two ends of the limiting piece protrude out of two axial sides of the flange respectively, and the limiting piece is located between the first sub-centrifugal block and the second sub-centrifugal block.
13. The shock absorber of claim 12 wherein said stop is a plurality and includes a first stop and a second stop, said first stop and said second stop being disposed adjacent respective ends of said first centrifugal mass.
14. The shock absorber of claim 7 wherein said guide strut is a plurality and includes a first guide strut and a second guide strut, said first guide strut and said second guide strut being disposed adjacent respective ends of said first centrifugal mass.
15. The shock absorber of claim 1 wherein said first centrifugal mass is a plurality of said centrifugal masses spaced apart along a circumference of said flange.
16. The shock absorber of claim 1 further comprising:
the cushion block is connected with the mass disc and is positioned between the mass disc and the centrifugal pendulum assembly;
the support disc is connected to one side of the cushion block, which is opposite to the mass disc, and the centrifugal pendulum assembly is sleeved on the support disc;
the elastic friction gasket is sleeved on the outer peripheral surface of the supporting disc and clamped between the centrifugal pendulum assembly and the cushion block.
17. The shock absorber of claim 1 wherein said torsion limiting assembly comprises:
the transmission connection part is suitable for being in transmission connection with the gearbox;
the first friction plate is connected to one side of the transmission connecting part, which faces the flange, and is attached to the flange.
18. The shock absorber of claim 1 further comprising:
the metal sheet is attached to one side, back to the centrifugal pendulum assembly, of the torque limiting assembly, and a second friction plate is arranged between the metal sheet and the torque limiting assembly;
one end of the disc spring is propped against one side of the metal sheet, which is opposite to the torsion limiting assembly;
and the fixed bracket is stopped against the other end of the belleville spring and is connected with the flange.
19. The shock absorber of claim 18 further comprising:
the diaphragm spring is stopped against one side of the fixed bracket, which is opposite to the belleville spring;
one end of the sealing ring is propped against one side of the diaphragm spring, which is opposite to the fixed bracket;
and the cover disc is stopped against the other end of the sealing ring and is connected with the mass disc.
20. A powertrain, comprising:
an engine and a gearbox;
the shock absorber according to any of claims 1-19.
21. A vehicle comprising a powertrain according to claim 20.
CN202111487333.8A 2021-12-07 2021-12-07 Shock absorber, power assembly and vehicle Pending CN116241607A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202111487333.8A CN116241607A (en) 2021-12-07 2021-12-07 Shock absorber, power assembly and vehicle

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202111487333.8A CN116241607A (en) 2021-12-07 2021-12-07 Shock absorber, power assembly and vehicle

Publications (1)

Publication Number Publication Date
CN116241607A true CN116241607A (en) 2023-06-09

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN202111487333.8A Pending CN116241607A (en) 2021-12-07 2021-12-07 Shock absorber, power assembly and vehicle

Country Status (1)

Country Link
CN (1) CN116241607A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN118423405A (en) * 2024-07-04 2024-08-02 比亚迪股份有限公司 Vibration damping flywheel, power assembly and vehicle

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN118423405A (en) * 2024-07-04 2024-08-02 比亚迪股份有限公司 Vibration damping flywheel, power assembly and vehicle
CN118423405B (en) * 2024-07-04 2024-09-10 比亚迪股份有限公司 Vibration damping flywheel, power assembly and vehicle

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