CN116480733A - Torque limiter and torsional vibration damper with torque limiter - Google Patents

Torque limiter and torsional vibration damper with torque limiter Download PDF

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Publication number
CN116480733A
CN116480733A CN202211445934.7A CN202211445934A CN116480733A CN 116480733 A CN116480733 A CN 116480733A CN 202211445934 A CN202211445934 A CN 202211445934A CN 116480733 A CN116480733 A CN 116480733A
Authority
CN
China
Prior art keywords
side disk
friction lining
torque limiter
disk
stamped
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
CN202211445934.7A
Other languages
Chinese (zh)
Inventor
罗曼·魏森博恩
帕斯卡尔·斯特拉塞
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.)
Schaeffler Technologies AG and Co KG
Original Assignee
Schaeffler Technologies AG and Co KG
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 Schaeffler Technologies AG and Co KG filed Critical Schaeffler Technologies AG and Co KG
Publication of CN116480733A publication Critical patent/CN116480733A/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
    • F16F15/131—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
    • F16F15/129—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 characterised by friction-damping means
    • F16F15/1297—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
    • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D7/00—Slip couplings, e.g. slipping on overload, for absorbing shock
    • F16D7/02—Slip couplings, e.g. slipping on overload, for absorbing shock of the friction type
    • F16D7/024—Slip couplings, e.g. slipping on overload, for absorbing shock of the friction type with axially applied torque limiting friction surfaces
    • F16D7/025—Slip couplings, e.g. slipping on overload, for absorbing shock of the friction type with axially applied torque limiting friction surfaces with flat clutching 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
    • F16F15/10—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
    • F16F15/129—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 characterised by friction-damping means
    • F16F15/1292—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 characterised by friction-damping means characterised by arrangements for axially clamping or positioning or otherwise influencing the frictional plates
    • 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
    • F16F15/13128—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 the damping action being at least partially controlled by centrifugal masses
    • 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
    • F16F15/13164—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 supporting arrangement of the damper unit
    • F16F15/13185—Bolting arrangements
    • 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
    • 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
    • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D2300/00—Special features for couplings or clutches
    • F16D2300/12—Mounting or assembling
    • 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
    • F16F2222/00—Special physical effects, e.g. nature of damping effects
    • F16F2222/04—Friction
    • 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
    • F16F2222/00—Special physical effects, e.g. nature of damping effects
    • F16F2222/08—Inertia

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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)
  • Mechanical Operated Clutches (AREA)

Abstract

The invention relates to a torque limiter (1) having a first side disk (2), a second side disk (3) and a flange element (4), wherein a first friction lining (9) is arranged between the first side disk and the flange element and a second friction lining (10) is arranged between the second side disk and the flange element, wherein the first friction lining is positively connected to the first side disk and the second friction lining is positively connected to the second side disk, wherein the first and/or the second side disk has at least one or more stamped-out projections (11), wherein the first and/or the second friction lining has at least one recess (13) into which the stamped-out projections engage in a positive-locking manner in an axial direction, wherein the at least one stamped-out projection has a non-circular contour as viewed in a plane parallel to the respective side disk, and wherein the at least one recess of the respective friction lining has a positively non-circular contour in a plane parallel to the respective friction lining.

Description

Torque limiter and torsional vibration damper with torque limiter
Technical Field
The invention relates to a torque limiter and a torsional vibration damper with a torque limiter, in particular for a motor vehicle or a drive train of a motor vehicle.
Background
The motor vehicle has a drive train in which torque fluctuations may occur. Such torque fluctuations occur in particular in internal combustion engines or hybrid engines having internal combustion engines, since they produce periodic torque fluctuations. In this case, torque peaks can occur, which should not be transmitted in order to protect the units in the drive train. But torque peaks that should be limited occur not only from the engine side but also from the wheel side. As a result, it is increasingly frequently required to provide torque limiters, for example in torsional vibration dampers. The torque limiter is typically configured such that friction linings are provided on both sides of the flange, which are each acted upon by the side disks on the flange. For this purpose, spring elements can be provided adjacent to the side disks, which create a preload between the side disks and the flange, or the flange itself can be embodied in the manner of a cup as a disk spring element in order to create a preload.
The side disks each have a circular collar punched out of their annular surface, which engages into a circular receptacle of an adjacently arranged friction lining, in order to connect the respective friction lining non-rotatably with respect to the respective side disk.
In modern torque limiters, there are increasing demands such that in principle an optimization of technical necessity and economic minimum should be achieved, wherein the gap between the minimum torque to be transmitted and the maximum torque to be transmitted is smaller and smaller. Here, a reliable function of the torque limiter should also be maintained during the planned service life of the torque limiter. This should correspondingly be achieved with the lowest possible costs.
Disclosure of Invention
The object of the present invention is to provide a torque limiter and a torsional vibration damper with a torque limiter, which achieve a reliable function during the intended service life, wherein this should be advantageously achieved even at reduced costs.
The object relating to the torque limiter is achieved by means of the features of the invention.
One embodiment of the invention relates to a torque limiter having a first side disk, a second side disk and a flange element arranged between the two side disks, the first side disk and the second side disk being connected to one another in a rotationally fixed manner, wherein the flange element is arranged rotatably relative to the side disks, wherein a first friction lining is arranged between the first side disk and the flange element and a second friction lining is arranged between the second side disk and the flange element, wherein the first friction lining is connected to the first side disk in a form-fitting manner and the second friction lining is connected to the second side disk in a form-fitting manner, wherein the two friction linings bear against the flange element in a friction-fitting manner under axial pretension, wherein the first side disk and/or the second side disk has at least one punched-out projection or a plurality of punched-out projections, wherein the punched-out projections engage in a form-fitting manner in the recesses in an axial direction, wherein the at least one punched-out projection has a non-circular profile in a plane parallel to the respective side disk and wherein the at least one friction lining has a non-circular profile in a respective non-circular profile in a plane. The non-circular contour of the extruded projections and the recesses do not compromise the positive connection so strongly, since the straight planar regions lie against one another, which makes it difficult or prevents the projections from sliding out of the recesses. Thereby, a reliable function of the torque limiter is achieved during the intended service life.
In a further embodiment, it is also suitable for the first side disk and/or the second side disk to have a plurality of punched-out projections distributed over the circumference, wherein the respective punched-out projections protrude from the first side disk or from the second side disk in the axial direction, wherein the first friction lining and/or the second friction lining has a plurality of recesses, wherein the punched-out projections engage in a form-fitting manner in the recesses in the axial direction. Thereby, the positive connection between the side disk and the friction lining is improved again.
In a further embodiment, it is also suitable for at least one or all of the at least one stamped-out projection or stamped-out projection to be formed as an opening with an axially projecting opening edge and/or as a planar closed flange. In particular in the case of thinner embodiments of the side disk, the stamped-out projections can thus be embodied as openings with open edges, whereas in the case of thicker side disks, solid stamped-out flanges without openings can be advantageous as stamped-out projections. It is also possible to provide the openings with opening edges and/or the mixture of flanges or only the openings with opening edges.
In a further embodiment, it is also suitable if the contour of the at least one stamped-out projection is viewed in a plane parallel to the respective side disk and/or the contour of the at least one recess of the respective friction lining is formed substantially at an angle in a plane parallel to the respective friction lining, such as, for example, substantially quadrangular, rectangular, square, trapezoidal or polygonal. In particular, the polygonal design makes it possible for the edges of the projections and recesses, which extend substantially in the circumferential direction, to be opposite one another in order to achieve good force transmission between the side disk and the friction lining.
It is also particularly advantageous if the respective contour is formed with rounded corners. Therefore, a rectangle, square, trapezoid, or the like can be configured to have a contour with rounded corners. This simplifies manufacture and reduces notch effects in the corners.
It is also particularly advantageous if the substantially square contour is arranged such that two sides of the contour are oriented substantially in a radial direction and two further sides of the contour are oriented substantially in a circumferential direction, or if the substantially rectangular contour is arranged such that two sides of the contour are oriented substantially in a radial direction and two further sides of the contour are oriented substantially in a circumferential direction, or if the substantially trapezoidal contour is arranged such that two sides of the contour are oriented substantially in a radial direction and two further sides of the contour are oriented substantially in a circumferential direction, wherein in particular the sides that are parallel to one another are oriented substantially in a circumferential direction and the two obliquely extending sides are oriented substantially in a radial direction. In this way, it is advantageously achieved that the force transmission between the side disk and the friction lining takes place in particular via the opposite expanded edges and faces of the projection and the recess.
It is also suitable if the two obliquely running sides of the profile of the stamped-out projection lie on two intersecting lines, the intersection of the two lines lying radially inward or radially outward of the stamped-out projection, in particular radially inward of the rotational axis of the torque limiter and flush therewith. It is particularly advantageous if the intersection point is located radially inward of the projection, in particular aligned with the axis of rotation. It is thereby achieved that the side edges extending in the radial direction extend almost radially so that an advantageous force transmission is present.
It is also suitable for the first side disk to be connected to the second side disk in a rotationally fixed and axially fixed manner, such as, for example, by riveting, wherein the flange elements arranged between the side disks are arranged in a basin-like manner and are tensioned in accordance with the manner of a disk spring for tensioning the friction lining to the flange elements. In this way, a preferred embodiment is achieved which can be acted upon without additional disk springs, since the flange element itself causes a force loading.
In a further embodiment, it is also suitable for the first side disk to be connected to the support disk in a rotationally fixed and axially fixed manner, such as, for example, by riveting, wherein the second side disk is arranged axially between the first side disk and the support disk, wherein the disk springs are arranged in a preloaded manner between the support disk and the second side disk for tensioning the friction lining to the flange element. In this embodiment, a good force distribution can be achieved due to the individual belleville springs.
The object relating to torsional vibration dampers is achieved by means of the features of the invention.
One embodiment of the invention relates to a torsional vibration damper having a torque limiter according to the invention.
Drawings
The invention is described in detail hereinafter with reference to the accompanying drawings according to a preferred embodiment.
Here, it is shown that:
figure 1 shows a schematic cross-section of a first embodiment of a torque limiter of a torsional vibration damper,
figure 2 shows another cross-section of the torque limiter according to figure 1,
figure 3 shows a schematic cross-section of the torque limiter according to figure 1,
figure 4 shows a view of a punched out projection of a side disc of the torque limiter according to figure 1,
figure 5 shows a view of a punched out projection of a side disk of the torque limiter according to figure 4,
figure 6 shows a view of a recess of the friction lining as receptacle according to figure 1,
figure 7 shows a view of a punched out tab of a side disc of a torque limiter according to a second embodiment,
figure 8 shows a view of a punched out tab of a side disc of a torque limiter according to a third embodiment,
figure 9 shows a view of a punched out tab of a side disc of a torque limiter according to a fourth embodiment,
figure 10 shows a schematic cross-section of a torsional vibration damper of a torque limiter according to a fifth embodiment,
figure 11 shows a cross-section of the torque limiter according to figure 10,
figure 12 shows another cross-section of the torque limiter according to figure 10 or 11,
figure 13 is a cross-sectional view of a side plate of the torque limiter according to figure 12,
figure 14 shows a cross-section of the other side disc of the torque limiter according to figure 12,
FIG. 15 shows a view of the opening of the friction lining as receptacle according to FIG. 12, and
fig. 16 shows a perspective view of the torque limiter according to fig. 11.
Detailed Description
Fig. 1 to 6 show a first embodiment of a torque limiter 1, for example a torsional vibration damper, for example a slip clutch. Fig. 1 to 6 show different parts and views of a torque limiter 1.
The torque limiter 1 has a first side disc 2 and a second side disc 3. A flange element 4 is arranged between the two side plates 2, 3.
The first side disk 2 is connected to the support disk 5 in a rotationally fixed and axially fixed manner, for example by means of a rivet element 6, which rivets the first side disk 2 and the support disk 5 to one another radially inside. Axially between the support disc 5 and the second side disc 3, a spring element 7 is arranged, which is supported radially outside at the second side disc 3 and which is axially supported radially inside at the support disc 5. The spring element 7 is designed as a disk spring and acts on the second side disk 3 in the axial direction toward the first side disk 2.
The first side disk 2 and the second side disk 3 are connected to one another in a rotationally fixed manner, for example, by: the first side disk 2 is connected to the support disk 5 in a rotationally fixed manner and the second side disk 3 is connected to the support disk 5 in a rotationally fixed manner, for example, via a web which protrudes from the second side disk 3 and engages into a recess of the support disk 5 in a form-fitting manner. The web extends here, for example, in the axial direction from the second side disk 3.
The flange element 4 arranged axially between the two side plates 2, 3 is rotatably arranged relative to the side plates 2, 3.
A first friction lining 9 is arranged between the first side disk 2 and the flange element 4 and a second friction lining 10 is arranged between the second side disk 3 and the flange element 4.
The first friction lining 9 is connected to the first side disk 2 in a positive manner and the second friction lining 10 is connected to the second side disk 3 in a positive manner.
As a result of the force applied by the spring element 7, the two friction linings 9, 10 bear in a friction fit against the flange element 4 under axial pretension.
In order to form a positive connection between the respective side disk 2, 3 and the respective friction lining 9, 10, the first side disk 2 and/or the second side disk 3 has at least one embossed projection 11 or a plurality of embossed projections 11. The embossed projections 11 project from the respective side discs 2, 3 in the axial direction.
The first friction lining 9 and/or the second friction lining 10 has at least one recess 13 into which the embossed projection 11 engages in a form-fitting manner in the axial direction.
The spring element 7, which is, for example, a disk spring, is also used here to pre-load the friction linings 9, 10 on the flange element 4.
As can be seen from fig. 1 to 6, the at least one embossed projection 11 has a non-circular contour in a plane parallel to the respective side disk 2, 3 and the at least one recess 13 of the respective friction lining 9, 10 also has a non-circular contour matching this in a plane parallel to the respective friction lining 9, 10.
In one embodiment, the first side disk 2 and/or the second side disk 3 have a plurality of stamped projections 11 distributed over the circumference, which project from the first side disk 2 and/or the second side disk 3 in the axial direction. Correspondingly, the first friction lining 9 and/or the second friction lining 10 have a plurality of recesses 13, wherein the embossed projections 11 engage in a positive-locking manner in the corresponding recesses 13 in an axially protruding manner in the axial direction.
The embossed projections 11 can be embodied, for example, as openings with circumferential, axially projecting opening edges. This configuration is preferred in the case of very thin construction of the side panels 2, 3, wherein it is not possible or not well possible to construct a closed stamped flange due to the thin material thickness.
Alternatively to the two side disks 2, 3 being embodied as stamped projections 11 with openings of axially protruding opening edges, at least one of the first side disk 2 and/or the second side disk 3 can also have at least one planar closed flange as stamped projection 11 or a plurality of planar closed flanges distributed over the circumference as stamped projections 11, wherein the respective flange protrudes as stamped projection 11 from the first side disk 2 and/or from the second side disk 3 in the axial direction. The first friction lining 9 or the second friction lining 10 can also have a recess 13 or a plurality of recesses 13, wherein the flange can be positively engaged in the recess 13 in the axial direction. The material thickness of the side panels 2, 3 with the at least one opening as the embossed projection 11 with the bead as the opening edge is formed thinner than the material thickness of the side panels 3, 2 with the at least one flange as the embossed projection 11.
Fig. 3, 4, 5 show that the embossed projections 11 have a substantially angular, e.g. substantially rectangular, contour, wherein, alternatively, a substantially square, substantially trapezoidal and/or substantially polygonal contour can also be provided. The corresponding recess 13 has a complementary contour to this for accommodating the embossed projection 11.
The embossed projections 11 can have a profile with rounded corners, wherein the diameter of the rounded portions is optionally in the range of 0.1mm to 5mm, advantageously in the range of 0.2mm to 3 mm.
Fig. 4 and 5 show a substantially rectangular outline of an embossed protrusion 11 with two short sides 14 and two long sides 15 with rounded corners 16. The two side edges 14 extend here substantially in the circumferential direction and the two side edges 15 extend substantially in the radial direction.
The recess 13 of the friction lining 9, 10 has a substantially rectangular contour with rounded corners, see fig. 6. Fig. 6 shows a substantially rectangular profile of the recess 13 with two short sides 17 and two long sides 18 with rounded corners 19. The two side edges 17 extend here substantially in the circumferential direction and the two side edges 18 extend substantially in the radial direction.
In the circumferential direction, the force transmission between the projection 11 and the recess 13 takes place via the long edges of the side edges 15 and 18.
The embossed projections 11 and recesses 13 can be distributed over the circumference of the side disks 2, 3 and the friction linings 9, 10 and/or can be arranged at the same radial level and/or at the same circumference of the opposite side disks 2, 3 or friction linings 9, 10. Alternatively or additionally, the stamped projections 11 of the opposing side discs 2, 3 can be arranged at different radial heights and/or at different circumferences.
The torque limiter 1 is, for example, part of a torsional vibration damper, which is not shown.
Fig. 7 shows a view of an embossed protrusion 11 as a view of a second embodiment, which is alternatively formed substantially square. The substantially square contour of the embossed projection 11 has two sides 14 as upper and lower sides and two sides 15 as lateral sides with rounded corners 16. The two side edges 14 extend here substantially in the circumferential direction and the two side edges 15 extend substantially in the radial direction. The side edges 14 and 15 are substantially equally long and are arranged in parallel pairs.
Fig. 8 shows a view of an embossed protrusion 11 as a view of a third embodiment, which is alternatively essentially trapezoidal in shape. The substantially trapezoidal contour of the embossed projection 11 has two sides 14 as upper and lower sides and two sides 15 as lateral sides with rounded corners 16. The two side edges 14 extend substantially in the circumferential direction and are arranged parallel and of different lengths. The two side edges 15 extend substantially in a radial direction and are arranged at an angle α to each other. The side edges 15 are formed substantially equally long. The virtual intersection point S of the extensions of the two sides 15 is located radially inside the projection 11. The virtual intersection of the extensions of the two lateral edges 15 can alternatively be located radially outside the projection 11.
Fig. 9 shows, as a view of the fourth exemplary embodiment, a view of an embossed projection 11, which is essentially trapezoidal in shape. The substantially trapezoidal contour of the embossed projection 11 has two sides 14 as upper and lower sides and two sides 15 as lateral sides with rounded corners 16. The two side edges 14 extend substantially in the circumferential direction and are arranged parallel and of different lengths. The two side edges 15 extend substantially in a radial direction and are arranged at an angle α to each other. The side edges 15 are formed substantially equally long. The virtual intersection point S of the extensions of the two lateral edges 15 is located radially inside the projection 11 and aligned with the rotation axis x-x of the torque limiter 1.
Fig. 10 to 16 show a second embodiment of a torque limiter 1, for example a torsional vibration damper 50, for example a slip clutch. Fig. 10 to 16 show different parts and views of a torque limiter 1 or a torsional vibration damper 50.
Torsional vibration damper 50 has an input member 51 and an output member 52. A damper device 53 and a torque limiter 1 are provided in series in the torque flow between the input member 51 and the output member 52. Wherein the torque limiter 1 is connected downstream of the damper device 53 as a slip clutch. The damping device 53 is, for example, a spring damper device with a friction device and/or a centrifugal pendulum device.
The torque limiter 1 has a first side disc 2 and a second side disc 3. A flange element 4 is arranged between the two side plates 2, 3.
The first side disk 2 is connected to the second side disk 3 in a rotationally fixed and axially fixed manner, for example by means of a rivet element 6, which rivets the first side disk 2 and the second side disk 3 to one another radially inside.
The flange element 4 arranged axially between the two side plates 2, 3 is rotatably arranged relative to the side plates 2, 3. The flange element 4 itself is formed in the manner of a basin according to the type of disk spring and is in this case itself tensioned relative to the side disks 2, 3.
A first friction lining 9 is arranged between the first side disk 2 and the flange element 4, and a second friction lining 10 is arranged between the second side disk 3 and the flange element 4. The first friction lining 9 is connected to the first side disk 2 in a positive manner and the second friction lining 10 is connected to the second side disk 3 in a positive manner.
As a result of the force applied by the flange element 4, the two friction linings 9, 10 bear in a friction fit against the flange element 4 under axial pretension.
In order to form a positive connection between the respective side disk 2, 3 and the respective friction lining 9, 10, the first side disk 2 and/or the second side disk 3 has at least one embossed projection 11 or a plurality of embossed projections 11. The embossed projections 11 project from the respective side discs 2, 3 in the axial direction.
The first friction lining 9 and/or the second friction lining 10 has at least one recess 13 into which the embossed projection 11 engages in a form-fitting manner in the axial direction.
The embossed protrusions 11 and recesses 13 have a non-circular contour, such as in particular a substantially angular contour, such as a substantially rectangular contour, a substantially square contour or a substantially trapezoidal contour, as has also been described with regard to fig. 1 to 9. The corners of the respective profile can be rounded.
In one embodiment, the first side disk 2 and/or the second side disk 3 have a plurality of stamped projections 11 distributed over the circumference, which project from the first side disk 2 and/or the second side disk 3 in the axial direction. Correspondingly, the first friction lining 9 and/or the second friction lining 10 have a plurality of recesses 13, wherein the embossed projections 11 engage positively in the axial direction into the corresponding recesses 13.
In other respects, with reference to the description of the previously described embodiments of fig. 1 to 9, features thereof can also be provided in the embodiments of fig. 10 to 16.
List of reference numerals:
1. torque limiter
2. First side plate
3. Second side plate
4. Flange element
5. Supporting disk
6. Riveting element
7. Spring element
9. First friction lining
10 second friction lining
11 projection
13 concave part
14 short sides
15 long sides
16 rounded corners
17 short sides
18 long sides
19 rounded corners
50 torsional vibration damper
51 input part
52 output part
53 vibration damper

Claims (10)

1. A torque limiter (1) having a first side disk (2), a second side disk (3) and a flange element (4) arranged between the two side disks (2, 3), the first side disk (2) and the second side disk (3) being connected to one another in a rotationally fixed manner, wherein the flange element (4) is arranged rotatably relative to the side disks (2, 3), wherein a first friction lining (9) is arranged between the first side disk (2) and the flange element (4) and a second friction lining (10) is arranged between the second side disk (3) and the flange element (4), wherein the first friction lining (9) is connected to the first side disk (2) in a form-fitting manner and the second friction lining (10) is connected to the second side disk (3) in a form-fitting manner, wherein the two friction linings (9, 10) rest in a friction fit under axial pretension against the flange element (4), wherein the first side disk (2) and the second side disk (3) have at least one projection (11) or at least one projection (11) in the direction of the first friction lining (11) and/or the second friction lining (11) are pressed out in a press-fit, wherein the at least one stamped-out projection (11) has a non-circular contour as seen in a plane parallel to the respective side disk (2, 3), and wherein the at least one recess (13) of the respective friction lining (9, 10) has a matching non-circular contour in a plane parallel to the respective friction lining (9, 10).
2. The torque limiter (1) according to claim 1,
the first side disk (2) and/or the second side disk (3) have a plurality of punched projections (11) distributed over the circumference, wherein the respective punched projections (11) protrude from the first side disk (2) or from the second side disk (3) in the axial direction, wherein the first friction lining (9) and/or the second friction lining (10) have a plurality of recesses (13), wherein the punched projections (11) engage in a form-fitting manner in the recesses (13) in the axial direction.
3. The torque limiter (1) according to claim 1 or 2,
characterized in that the at least one stamped-out projection (11) or at least one or all stamped-out projections (11) of the stamped-out projections (11) are designed as openings with axially projecting opening edges and/or as planar closed flanges.
4. A torque limiter (1) according to claim 1, 2 or 3,
the method is characterized in that the contour of the at least one stamped-out projection (11) is viewed in a plane parallel to the respective side disk (2, 3) and/or the contour of the at least one recess (13) of the respective friction lining (9, 10) is formed essentially at an angle in a plane parallel to the respective friction lining (9, 10), such as, for example, essentially quadrangle, rectangle, square, trapezoid or polygon.
5. The torque limiter (1) of claim 4,
characterized in that the contour is formed with rounded corners (16, 19).
6. The torque limiter (1) according to claim 4 or 5,
characterized in that the substantially square profile is arranged such that two sides of the profile are oriented substantially in a radial direction and two further sides of the profile are oriented substantially in a circumferential direction, or the substantially rectangular profile is arranged such that two sides of the profile are oriented substantially in a radial direction and two further sides of the profile are oriented substantially in a circumferential direction, or the substantially trapezoidal profile is arranged such that two sides of the profile are oriented substantially in a radial direction and two further sides of the profile are oriented substantially in a circumferential direction, wherein in particular, the sides parallel to each other are oriented substantially in a circumferential direction and the two obliquely extending sides are oriented substantially in a radial direction.
7. A torque limiter (1) according to claim 4, 5 or 6,
the method is characterized in that the two obliquely extending sides of the trapezoid contour of the stamped-out projection (11) lie on two intersecting lines, wherein the intersection of the two lines lies radially inside or radially outside the stamped-out projection (11), in particular radially inside and aligned with the axis of rotation of the torque limiter (1).
8. Torque limiter (1) according to any one of the previous claims,
the first side disk (2) is connected to the second side disk (3) in a rotationally fixed and axially fixed manner, such as, for example, by riveting, wherein a flange element (4) arranged between the side disks (2, 3) is arranged in a basin-like manner and is tensioned in accordance with the manner of a disk spring for tensioning the friction linings (9, 10) to the flange element (4).
9. The torque limiter (1) according to any one of the preceding claims 1 to 7,
characterized in that the first side disk (2) is connected to the support disk (5) in a rotationally fixed and axially fixed manner, such as, for example, by riveting, wherein the second side disk (3) is arranged axially between the first side disk (2) and the support disk (5), wherein a disk spring is arranged in a tensioned manner between the support disk (5) and the second side disk (3) for tensioning the friction linings (9, 10) to the flange element (4).
10. A torsional vibration damper (50) having a torque limiter (1) according to any of the preceding claims.
CN202211445934.7A 2022-01-13 2022-11-18 Torque limiter and torsional vibration damper with torque limiter Pending CN116480733A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102022100680.8A DE102022100680A1 (en) 2022-01-13 2022-01-13 Torque limiter and torsional vibration damper with torque limiter
DE102022100680.8 2022-01-13

Publications (1)

Publication Number Publication Date
CN116480733A true CN116480733A (en) 2023-07-25

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN202211445934.7A Pending CN116480733A (en) 2022-01-13 2022-11-18 Torque limiter and torsional vibration damper with torque limiter

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CN (1) CN116480733A (en)
DE (1) DE102022100680A1 (en)

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