CN113137452A - Method for assembling a torsional vibration damper and torsional vibration damper - Google Patents

Method for assembling a torsional vibration damper and torsional vibration damper Download PDF

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Publication number
CN113137452A
CN113137452A CN202110007871.6A CN202110007871A CN113137452A CN 113137452 A CN113137452 A CN 113137452A CN 202110007871 A CN202110007871 A CN 202110007871A CN 113137452 A CN113137452 A CN 113137452A
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CN
China
Prior art keywords
damper
input
subassembly
spring
torsional vibration
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Pending
Application number
CN202110007871.6A
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Chinese (zh)
Inventor
罗曼·魏森博恩
帕斯卡·斯特拉瑟
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Schaeffler Technologies AG and Co KG
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Schaeffler Technologies AG and Co KG
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Publication of CN113137452A publication Critical patent/CN113137452A/en
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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
    • F16F15/1407—Suppression of vibrations in rotating systems by making use of members moving with the system using masses freely rotating with the system, i.e. uninvolved in transmitting driveline torque, e.g. rotative dynamic dampers the rotation being limited with respect to the driving means
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
    • B23P19/00—Machines for simply fitting together or separating metal parts or objects, or metal and non-metal parts, whether or not involving some deformation; Tools or devices therefor so far as not provided for in other classes
    • B23P19/04—Machines for simply fitting together or separating metal parts or objects, or metal and non-metal parts, whether or not involving some deformation; Tools or devices therefor so far as not provided for in other classes for assembling or disassembling parts
    • 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
    • F16F15/131—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 the rotating system comprising two or more gyratory masses
    • F16F15/13121—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 the rotating system comprising two or more gyratory masses characterised by clutch arrangements, e.g. for activation; integrated with clutch members, e.g. pressure member
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • 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
    • F16F15/131—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 the rotating system comprising two or more gyratory masses
    • F16F15/13142—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 the rotating system comprising two or more gyratory masses characterised by the method of assembly, production or treatment
    • 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
    • F16F15/131—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 the rotating system comprising two or more gyratory masses
    • F16F15/133—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 the rotating system comprising two or more gyratory masses using springs as elastic members, e.g. metallic springs
    • F16F15/134—Wound 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
    • F16F15/131—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 the rotating system comprising two or more gyratory masses
    • F16F15/139—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 the rotating system comprising two or more gyratory masses characterised by friction-damping means
    • F16F15/1397—Overload protection, i.e. means for limiting torque
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
    • F16F15/00—Suppression of vibrations in systems; Means or arrangements for avoiding or reducing out-of-balance forces, e.g. due to motion
    • F16F15/10—Suppression of vibrations in rotating systems by making use of members moving with the system
    • F16F15/14—Suppression of vibrations in rotating systems by making use of members moving with the system using masses freely rotating with the system, i.e. uninvolved in transmitting driveline torque, e.g. rotative dynamic dampers
    • F16F15/1407—Suppression of vibrations in rotating systems by making use of members moving with the system using masses freely rotating with the system, i.e. uninvolved in transmitting driveline torque, e.g. rotative dynamic dampers the rotation being limited with respect to the driving means
    • F16F15/145—Masses mounted with play with respect to driving means thus enabling free movement over a limited range
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
    • F16F2226/00—Manufacturing; Treatments
    • F16F2226/04—Assembly or fixing methods; methods to form or fashion parts
    • 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
    • F16F2226/00—Manufacturing; Treatments
    • F16F2226/04—Assembly or fixing methods; methods to form or fashion parts
    • F16F2226/048—Welding
    • 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
    • F16F2230/00—Purpose; Design features
    • F16F2230/0011—Balancing, e.g. counterbalancing to produce static balance
    • 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
    • F16F2230/00—Purpose; Design features
    • F16F2230/0023—Purpose; Design features protective
    • 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
    • F16F2230/00—Purpose; Design features
    • F16F2230/04—Lubrication
    • 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
    • F16F2230/00—Purpose; Design features
    • F16F2230/10—Enclosure elements, e.g. for protection

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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)
  • Manufacturing & Machinery (AREA)
  • Mechanical Operated Clutches (AREA)

Abstract

The invention relates to a method for assembling a torsional vibration damper and a torsional vibration damper. In the method, the torsional vibration damper (100) has a damper input part (102), a damper output part (104) and a spring-damper mechanism (108) acting between the damper input part and the damper output part, the damper input part and the damper output part having a common axis of rotation (106) and being rotatable together about the axis of rotation and being rotatable to a limited extent relative to one another, the spring-damper mechanism having at least one spring (110), wherein the method comprises assembling a subassembly (122), the subassembly (122) having a torque limiter (124), a hub section (126) and a centrifugal pendulum mechanism (128), wherein the subassembly (122) is preassembled. The torsional vibration damper (100) has an input cover part (114) which has a section (120) extending substantially in the axial direction on the radial inside.

Description

Method for assembling a torsional vibration damper and torsional vibration damper
Technical Field
The invention relates to a method for assembling a torsional vibration damper, in particular for a drive train, having a damper input part, a damper output part and a spring damper mechanism acting between the damper input part and the damper output part, the damper input part and the damper output part having a common axis of rotation about which the damper input part and the damper output part can rotate together and can rotate in a limited manner relative to one another, the spring damper mechanism having at least one spring, wherein the method comprises assembling a subassembly having a torque limiter, a hub section and a centrifugal pendulum mechanism.
The invention also relates to a torsional vibration damper, in particular for a drive train, for example a hybrid drive train, having a damper input part, a damper output part, a spring-damper mechanism acting between the damper input part and the damper output part, which have a common axis of rotation about which the damper input part and the damper output part can rotate together and can rotate in a limited manner relative to one another, and having a subassembly, which comprises a torque limiter, a hub section and a centrifugal pendulum mechanism, wherein the damper input part has an input cover part.
Background
DE 102018124735 a1 discloses a torsional vibration damper, in particular a dual-mass flywheel, for reducing torsional vibrations in a drive train of a motor vehicle, which torsional vibration damper has: a primary side for introducing a torque having torsional non-uniformity; a secondary side which can rotate in a limited manner relative to the primary side and is used for continuously conducting torque; an energy storage element, in particular designed as a curved spring, which can couple the primary side to the secondary side in a torque-transmitting manner, wherein the energy storage element is arranged in a receiving space defined by the primary side and/or by the secondary side; an output element for deriving a damped torque; a torque limiter, in particular designed as a slip clutch, coupled to the secondary side and to the output element; and a centrifugal pendulum coupled to the output element for generating a restoring torque opposite to the torsional inhomogeneities in the torque, wherein the centrifugal pendulum is arranged in the receiving space.
Disclosure of Invention
The object of the present invention is to improve the method for assembling a torsional vibration damper described above in terms of function. The invention also has for its object to improve the torsional vibration damper described at the outset with regard to structure and/or function.
Especially for DHT hybrid applications, automobile manufacturers are increasingly demanding torque limiters to protect components within the transmission from overloading. Since the torque limiter must usually be inserted into the damper before the connection to the driven disk hub and to the centrifugal force pendulum and the damper cover welded to the primary flywheel, the secondary side with the torque limiter, the release mechanism, the driven disk hub and the centrifugal force pendulum cannot be pre-balanced together.
This object is achieved by means of a method for assembling a torsional vibration damper having the features of the invention. This object is also achieved by means of a torsional vibration damper having the features of the invention.
The method for assembling a torsional vibration damper, in particular a dual mass flywheel, can comprise assembling a subassembly, wherein the torsional vibration damper has a damper input part, a damper output part and a spring damper mechanism acting between the damper input part and the damper output part, the damper input part and the damper output part having a common axis of rotation about which the damper input part and the damper output part can rotate together and can rotate in a limited manner relative to one another, the spring damper mechanism having at least one spring, and the subassembly having a torque limiter, a hub section and a centrifugal pendulum mechanism. The subassembly can be preassembled in one method step. The torque limiter, the hub section and the centrifugal pendulum mechanism can be preassembled as a single subassembly, for example, combined together. The method can include the steps of: the torque limiter, the hub section and the centrifugal pendulum mechanism are connected to each other as a preassembled integrated unit (subassembly).
The subassembly can have a release mechanism. The release mechanism can have a spring element, for example a coil spring, and/or a support disk. The release mechanism can be fixedly connected, in particular bolted or riveted, to the torque limiter. The support disk can be fixedly connected, in particular bolted or riveted, to the limiter output part of the torque limiter. The spring element can be arranged in an active manner between the supporting disk and the driven disk hub or the disk hub section.
The torque limiter, hub section, centrifugal pendulum mechanism and release mechanism can be preassembled as a subassembly. The method can include the steps of: the torque limiter, the hub section, the centrifugal pendulum mechanism and the release mechanism are connected to one another as a preassembled integrated unit (subassembly).
The subassembly can be pre-balanced, in particular after pre-assembly thereof. The subassembly can be pre-balanced by means of at least one balancing weight or balancing rivet. At least one balancing weight or balancing rivet can be mounted on the centrifugal pendulum mechanism, in particular radially on the outside.
The method can include the steps of: the subassembly is inserted or inserted into the torsional vibration damper. The method can include the steps of: the subassembly is radially fixed to the damper input member. The step of loading, placing and/or radially fixing the sub-assembly can be performed after pre-balancing of the sub-assembly.
After the subassembly has been inserted into the torsional vibration damper and/or radially fixed to the damper input part, the subassembly can be fixed axially, in particular by inserting a spring part, for example a coil spring, and/or inserting an input cover part. The method can include the steps of: the spring element is inserted or inserted into the subassembly or is placed against the subassembly. For example, the coil spring can be placed or fitted onto a friction ring of the subassembly.
The input cover part can be connected, in particular welded, to the damper input part in a form-fitting and/or material-like manner. The positive and/or material connection, in particular the welding, of the input cover part to the damper input part can take place in particular after the spring part has been inserted or inserted. The damper input member can be a primary flywheel.
The method can comprise a step for preassembling the disc part on the input part of the damper by means of the bolt head. The method can include a step for filling a lubricant, such as grease or oil, into the spring receiving space or spring channel. The method can include a step for enclosing a sliding cover having a spring, such as an arcuate spring. The method can include a step for mounting a balance weight on the input member of the shock absorber.
In particular, after preassembly of the subassembly, the method can comprise the steps in the corresponding order:
-preassembling the disc member on the damper input member by means of the bolt head;
-filling lubricant into the spring accommodation space/spring channel;
-inserting/embedding a sliding closure with a spring;
-inserting/inserting a subassembly with a torque limiter, a release mechanism, a hub section/driven hub and a centrifugal pendulum mechanism into the torsional vibration damper;
-fitting/placing the spring member onto the friction ring of the subassembly;
-fitting/placing the input cover part onto the damper input part;
connecting, in particular welding, the input cover part to the damper input part in a form-fitting and/or material-like manner;
-mounting a balance weight on the damper input member.
Alternatively, the subassembly is preassembled immediately prior to the step of installing/inserting the subassembly into the torsional vibration damper.
The subassembly can also be preassembled after the disc part has been preassembled on the damper input part by means of the screw head, or after the lubricant has been filled into the spring receiving space/spring channel, or after the sliding cover with the spring has been inserted/inserted.
The method can include the steps of: the input cover part is deformed in such a way that it can be used as a break-proof protection for the centrifugal pendulum mechanism. For example, the inner diameter of the input cover member can be deformed. The input cover part can be deformed radially on the inside in such a way that it has a section which extends substantially in the axial direction.
For example, the method comprises, in particular before the step of pre-assembling the sub-assembly, the steps of: the input cover part is deformed radially inwards such that the input cover part has a section extending substantially in the axial direction.
The torsional vibration damper produced or assembled by means of the method according to the invention can have a damper input part, a damper output part, a spring damper mechanism acting between the damper input part and the damper output part, the damper input part and the damper output part having a common axis of rotation about which the damper input part and the damper output part can rotate together and can rotate in a limited manner relative to one another, and a subassembly having a torque limiter, a hub section and a centrifugal pendulum mechanism, wherein the damper input part has an input cover part and the input cover part has a section extending substantially in the axial direction on the radial inside.
The input cover part, in particular a radially inner section of the input cover part, can be designed as a rupture protection, in particular for a centrifugal pendulum mechanism. The input cover part can have a cover-like shape, which comprises a bottom section, a radially outwardly arranged edge section and a radially inwardly arranged edge section. The bottom section can extend at least substantially in a radial direction. The two radial sections can extend at least substantially in the axial direction. The radially outer section can extend substantially in the axial direction in the direction of the input side. The radially inwardly arranged section can extend substantially in the axial direction in the direction of the output side. The input cover member can have a discoid shape.
The subassembly can have a release mechanism. The release mechanism can have a spring element, for example a spiral spring and/or a support disk. The release mechanism can be fixedly connected, in particular bolted or riveted, to the torque limiter.
The torque limiter can have a limiter input part, in particular on the input side, and a limiter output part, in particular on the output side. The friction mechanism is operatively disposed between the limiter input member and the limiter output member. The friction mechanism can have one or more friction elements, for example friction linings or dry linings. The limiter input member can be connected to or form the spring-damper mechanism with the output member of the spring-damper mechanism. The limiter input member can have an axial ring or a friction ring. A spring element, for example a coil spring, can be arranged in a functional manner on the axial ring or the friction ring. The spring element can be supported on the input cover part.
The support disk of the release mechanism can be fixedly connected, in particular bolted or riveted, to the output part of the torque limiter. The spring element of the release mechanism can be arranged in an active manner between the supporting disk and the driven disk hub or the disk hub section.
The limiter output member is connectable with the hub section. For example, the limiter output part and the hub section can each have a toothing. The toothing of the output part of the limiter can be brought into engagement or already engaged with the toothing of the hub section.
The torsional vibration damper can be used for arrangement in a vehicle drive train, in particular in a hybrid drive train. The vehicle can be a motor vehicle, such as a hybrid vehicle. The vehicle can have a first travel drive machine and at least one second travel drive machine. The first driving machine can be an internal combustion engine. The second travel drive can be an electric machine. The electric machine can operate as a motor and/or a generator. The vehicle can have a transmission, such as a manual transmission, a step-variable transmission, or a continuously variable transmission. The transmission can be an automatically operated or automatic transmission. The at least one second drive machine can be integrated into the transmission in terms of construction and/or function. The torsional vibration damper can be used for arrangement on a crankshaft or on a transmission. The torsional vibration damper can be used for arrangement on the friction clutch. The torsional vibration damper can be embodied as a dual mass flywheel.
The expressions "input part" and "output part" relate in particular to the direction of the power flow starting from the (e.g. first) driving machine. Unless otherwise stated or when the context indicates otherwise, the descriptions "axial", "radial" and "circumferential" relate to the direction of extension of the axis of rotation. The "axial direction" thus corresponds to the direction of extension of the axis of rotation. "radial" is here a direction perpendicular to the direction of extension of the axis of rotation and intersecting the axis of rotation. The "circumferential direction" then corresponds to the direction of a circular arc about the axis of rotation.
The at least one spring can act as a mechanical accumulator. The at least one spring can be embodied as an arc spring and/or a cylindrical helical spring. The at least one spring can have a straight or curved helical axis. The at least one spring can be embodied as a compression spring. The spring-damper mechanism can have a plurality of, for example two, three or four springs. At least one spring can be guided in the spring channel/spring receiving space. At least one spring can be supported on one side on the damper input part and on the other side on the damper output part. The at least one spring is capable of receiving and/or storing mechanical energy when the damper input member and the damper output member rotate relative to each other against the force of the at least one spring. The at least one spring can pivot the damper input part and the damper output part back again relative to one another using stored and/or absorbed mechanical energy.
The damper input member can be configured as a primary flywheel or a primary flywheel. The damper input member can have an input flange member. The input flange part can have a hood-like shape comprising a bottom section and an edge section. The bottom section can extend at least substantially in a radial direction. The edge section can extend at least substantially in the axial direction. The input cover member can define with the input flange member a receiving space for the at least one spring. The receiving space can have the shape of a torus. The input cover part and the input flange part can be connected to one another in a form-fitting and/or material-like manner, in particular welded. The input flange member and the input cover member can restrict or collectively restrict the damper interior space. The input cover part and the input flange part can have a support section for the at least one spring which projects into the receiving space.
The damper output member can have an output flange member. The output flange part can extend at least substantially in a radial direction. The output flange member can be disposed substantially axially between the input cover member and the input flange member. The output flange part can have a support section for the at least one spring which projects into the receiving space. The hub section can be fixedly connected, in particular bolted or riveted, to the damper output part, for example to the output flange part. The damper output part and the hub section can be produced in one piece or in one piece. For example, the output flange part and the hub section can be manufactured in one piece or in one piece. The hub section can have a spline toothing arranged in particular radially inside. The spline teeth can be internal teeth. The spline toothing can be used for connecting with a shaft. The hub section can have, in particular, a radially outer toothing, which is operatively engaged in the toothing of the output part of the limiter.
The torsional vibration damper can have at least one centrifugal pendulum mechanism. The torsional vibration damper can have at least one centrifugal pendulum mechanism arranged on the damper output part. The centrifugal pendulum mechanism can be arranged axially on the output side on the torsional vibration damper. The centrifugal pendulum mechanism can be fixedly connected, in particular riveted or bolted, to the damper output part, for example to an output flange part of the damper output part. The centrifugal pendulum mechanism can have a pendulum mass carrier and at least one pendulum mass arranged movably on the pendulum mass carrier.
A torque limiter can act between the damper input member and the damper output member. A torque limiter can act between the spring-damper mechanism and the damper output member. The torque limiter can be fixedly connected, in particular riveted or screwed, to the damper output part, for example to an output flange part of the damper output part, or can be brought into operative engagement by means of complementarily configured teeth. The torque limiter can be used to limit the maximum torque that can be transmitted by means of the torsional vibration damper to a preset maximum value. The torque limiter can be disposed in a power path between the damper input member and the damper output member.
The limiter input member and the limiter output member can be frictionally engaged and/or non-positively connected to each other. The limiter input part and the limiter output part are rotatable together about an axis of rotation and are rotatable relative to each other when a preset maximum torque is exceeded. The limiter output part can be fixedly connected, in particular riveted or screwed, to the damper output part, for example to an output flange part of the damper output part, or can be brought into operative engagement by means of complementarily designed teeth. The spring damper mechanism or at least one spring of the spring damper mechanism can be supported on one side on the damper input part and on the other side on a torque limiter, for example a limiter input part.
In summary and in other words, the invention thus provides, in particular, a vibration damper, for example a torsional vibration damper, having a releasable torque limiter and a centrifugal pendulum which can be balanced in a sub-assembly. The sub-assembly (subassembly) can have a torque limiter, a release mechanism, a driven hub and a centrifugal pendulum. The sub-assemblies can be balanced and then placed as a combination into the shock absorber. The subassembly with the torque limiter, the release mechanism, the driven hub and the centrifugal force pendulum can be balanced and inserted into the vibration damper. A cover, e.g., an input cover member, can then be placed over and welded to the primary flywheel, e.g., the damper input member or the input flange member. The inner diameter, for example a radially inwardly arranged section/edge section, of the cover, for example the input cover part, can be deformed such that the cover serves as a break-proof protection for the centrifugal force pendulum. The assembly sequence can be performed as follows: pre-assembling the primary flywheel with the disc member by means of the bolt head; filling grease into the arc-shaped spring channel; a sliding cover with an arc spring is arranged; a sub-assembly body consisting of a torque limiter, a release mechanism, a driven disk hub and a centrifugal pendulum (the sub-assembly body can be pre-balanced by means of a balance rivet) is arranged in the shock absorber; placing a coil spring onto the friction ring; placing the cover over the primary flywheel and welding; the balance weight is mounted on the primary flywheel.
The invention enables, in particular, the preassembly and/or the pre-balancing of a subassembly/subassembly having a torque limiter, a release mechanism, a driven hub and a centrifugal force pendulum. The sub-assembly/subassembly can be placed as a combination into the shock absorber. Low isolation is achieved in the drive train while protecting transmission components and/or other drive train components from overload. The assembly of the torsional vibration damper is more efficient and simpler.
Drawings
Embodiments of the invention will be described in detail below with reference to the accompanying drawings, which show schematically and exemplarily:
FIG. 1 illustrates a torsional vibration damper including a subassembly having a torque limiter, a release mechanism, a driven hub, and a centrifugal pendulum mechanism;
FIG. 2 shows a preassembled subassembly having a torque limiter, a release mechanism, a driven hub, and a centrifugal pendulum mechanism; and
figure 3 shows a detail of the subassembly with the balance rivet.
Detailed Description
Fig. 1 shows a torsional vibration damper 100 having a damper input member 102 and a damper output member 104. The damper input part 102 and the damper output part 104 are rotatable together about a common axis of rotation 106 and can rotate in a limited manner relative to one another. A spring-damper mechanism 108 having springs 110 embodied as arcuate springs acts between damper input member 102 and damper output member 104.
The damper input member 102 has an input flange member 112 made of a plate material and an input cover member 114 welded to the input flange member 112. A balance weight 113 is arranged on the damper input member 102. The input cover part 114 has a ring-disk-like shape with a bottom section 116, a radially outer arranged edge section 118 and a radially inner arranged edge section 120. The bottom section 118 extends at least substantially in a radial direction. The radially outer edge section 118 extends substantially in the axial direction toward the input side. The radially inwardly arranged edge section 120 extends substantially in the axial direction towards the output side.
Torsional vibration damper 100 has a subassembly 122 that includes a torque limiter 124, a hub section 126, and a centrifugal pendulum mechanism 128. The subassembly 122 also has a release mechanism 130 having a coil spring 132 and a support disk 134. The input cover part 114, in particular the radially inner edge section of the input cover part 114, is designed as a burst protection for the centrifugal force pendulum mechanism 128. Centrifugal force pendulum mechanism 128 is arranged radially within radially inner arranged edge section 120 of input cover part 114 and is riveted to hub section 126.
The torque limiter 124 has an input-side limiter input member 136 and an output-side limiter output member 138. A friction mechanism 140 having friction linings is operatively disposed between the limiter input part 136 and the limiter output part 138. The limiter input member also has a friction ring 142. A coil spring 144 is operatively arranged on the friction ring 142, the coil spring being supported on the input cover member 114.
The support plate 134 of the release mechanism is riveted to the limiter output member 138. The coil spring 132 of the release mechanism 130 is operatively disposed between the support disc 134 and the hub section 126. Limiter output member 138 is operatively connected or engaged with hub section 126 via teeth 146.
Fig. 2 shows a preassembled and pre-balanced subassembly 122 having a torque limiter 124, a hub section 126, a centrifugal pendulum mechanism 128, and a release mechanism 130. A balancing weight 148, for example a balancing rivet, is arranged on the centrifugal force pendulum mechanism 128 radially on the outside and in the axial direction toward the output side.
In addition, reference is made in particular to fig. 1 and the corresponding description.
Fig. 3 shows a detail view of the centrifugal pendulum mechanism 128 of the subassembly 122, fitted with a balancing rivet 148.
In addition, reference is made in particular to fig. 1 and 2 and the corresponding description.
The method for assembling torsional vibration damper 100 provides for preassembling subassembly 122 with torque limiter 124, release mechanism 130, hub section 126 and centrifugal pendulum mechanism 128. To this end, the torque limiter 124, the release mechanism 130, the hub section 126 and the centrifugal pendulum mechanism 128 are connected to one another. Subassembly 122 is then pre-balanced by balance weight 148. The disc elements are then preassembled on the input flange part 112 of the damper input part 102 by means of the screw heads. A lubricant, such as grease, is then filled into the spring receiving space/spring channel of spring-damper mechanism 108. Next, a sliding closure with a curved spring 110 is installed. The preassembled and rebalanced subassembly 122 is then installed into the torsional vibration damper 100 and the subassembly 122 is radially secured to the damper input member 102. The coil spring 144 is then placed on the friction ring 142. Input cover member 114 is then placed over and welded to input flange member 112. Balance weight 113 is then installed on input flange member 112. See also the preceding description for additional.
By "capable" is meant, inter alia, an optional feature of the invention. There are therefore also modifications and/or embodiments of the invention which additionally or alternatively have a corresponding feature or features.
Individual features may also be derived from the combinations of features disclosed herein as appropriate and used in combination with other features to define the subject matter of the claims without necessarily requiring structural and/or functional relationships between the features.
List of reference numerals
100 torsional vibration damper
102 damper input member
104 output part of vibration damper
106 axis of rotation
108 spring-damper mechanism
110 arc spring
112 input flange part
113 balance weight
114 input cover member
116 bottom section
118 radially outwardly arranged edge section
120 radially inwardly arranged edge section
122 subassembly
124 torque limiter
126 hub section
128 centrifugal pendulum mechanism
130 loosening mechanism
132 coil spring
134 support disc
136 limiter input member
138 limiter output member
140 friction mechanism
142 friction ring
144 coil spring
146 tooth
148 balance weight

Claims (10)

1. Method for assembling a torsional vibration damper (100), in particular for a drive train, the torsional vibration damper (100) having a damper input part (102), a damper output part (104) and a spring-damper mechanism (108) which acts between the damper input part (102) and the damper output part (104) and which have a common axis of rotation (106), about which the damper input part (102) and the damper output part (104) can be rotated together and can be rotated in a limited manner relative to one another, the spring-damper mechanism having at least one spring (110), wherein the method comprises assembling a subassembly (122), the subassembly (122) having a torque limiter (124), A hub section (126) and a centrifugal pendulum mechanism (128), characterized in that the subassembly (122) is preassembled.
2. The method according to claim 1, characterized in that it comprises the steps of: the subassembly (122) is pre-balanced, in particular by means of at least one balancing weight (148) or a balancing rivet.
3. The method according to at least one of the preceding claims, characterized in that the subassembly (122) has a release mechanism (130) and the torque limiter (124), the hub section (126), the centrifugal pendulum mechanism (128) and the release mechanism (130) are preassembled into the subassembly (122).
4. Method according to at least one of the preceding claims, characterized in that the method comprises the steps of: -incorporating the subassembly (122) into the torsional vibration damper (100).
5. Method according to at least one of the preceding claims, characterized in that the method comprises the steps of: radially securing the subassembly (122) to the damper input member (102).
6. The method according to claim 4 or 5, characterized in that after the subassembly (122) is inserted into the torsional vibration damper (100) and/or radially fixed on the damper input part (102), the subassembly (122) is axially fixed, in particular by inserting a spring part, for example a disk spring, and/or inserting an input cover part (114).
7. Method according to claim 6, characterized in that the input cover part (114) is connected to the damper input part (102) in a form-fitting and/or material-like manner, in particular welded.
8. Method according to at least one of the preceding claims, characterized in that a disc is preassembled on the damper input part (102) by means of a bolt head; filling a lubricant, such as grease or oil, into the spring accommodation space; enclosing a sliding cover having a spring (110), such as an arcuate spring; and/or mounting a balance weight (113) on the damper input member (102).
9. Torsional vibration damper (100), in particular for a drive train, for example a hybrid drive train, having a damper input part (102), a damper output part (104), a spring-damper mechanism (108) which acts between the damper input part (102) and the damper output part (104) and which has a common axis of rotation (106), the damper input part (102) and the damper output part (104) being rotatable together about the axis of rotation and being rotatable in a limited manner relative to one another, and having a subassembly (122) which has at least one spring (110), the subassembly (122) having a torque limiter (124), A hub section (126) and a centrifugal pendulum mechanism (128), wherein the damper input part (102) has an input cover part (114), characterized in that the input cover part (114) has a section (120) extending substantially in the axial direction on the radial inside.
10. The torsional vibration damper (100) as claimed in claim 9, characterized in that the input cover part (114), in particular a radially inner section (120) of the input cover part (114), is configured as a burst protection, in particular for the centrifugal pendulum mechanism (128).
CN202110007871.6A 2020-01-17 2021-01-05 Method for assembling a torsional vibration damper and torsional vibration damper Pending CN113137452A (en)

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