A dual-mass flywheel for automobile with adjustable bidirectional clearance

Abstract

The present invention relates to the technical field of dual-mass flywheels for automobiles, and in particular to a dual-mass flywheel for automobiles with adjustable bidirectional clearance. A spring is provided in the arc cavity of a primary flywheel, a spring seat is provided at the end of each arc cavity, and at least two notches are provided on the side wall of the spring seat; a truncated cone is provided in the spring seat; a screw passes through the truncated cone and the partition and is fixedly connected to the partition, and the clearance error between the spring and the spring seat is eliminated by adjusting the protruding length of the screw passing through the partition; a stud bolt passes through the truncated cone and is fixedly connected to the blind hole on the partition, and the stud bolt away from the blind hole locks the truncated cone through a nut; a locking mechanism is embedded in the notch and abuts against the circumferential side wall of the truncated cone, and by abutting against different outer diameters of the truncated cone, the position of the spring seat in the arc cavity is locked axially and radially. The present invention not only reduces costs, but also can effectively reduce vibration and extend the service life of the dual-mass flywheel assembly.

Description

Technical Field

[0001] The invention relates to the technical field of automobile dual-mass flywheels, in particular to an automobile dual-mass flywheel with adjustable bidirectional clearance. Background Art

[0002] The dual mass flywheel is an important component that connects the engine crankshaft to the transmission system through a flywheel. The first mass flywheel is connected to the crankshaft end, the second mass flywheel is connected to the transmission system, and the elastic element is installed between them. The elastic element transfers the rotation of the first mass to the second mass flywheel, thereby transferring the rotation to the transmission system.

[0003] There are some problems when using the existing dual-mass flywheel: due to the wear of the elastic component during the operation of the dual-mass flywheel and the assembly error, a gap will be generated between the spring seat and the internal slide groove and arc spring of the dual-mass flywheel, and the gap will become larger and larger as the dual-mass flywheel works and is used. Therefore, the dual-mass flywheel will produce abnormal noise and abnormal vibration when working, and the vibration reduction effect will deteriorate. However, the elastic component often cannot be replaced alone, and directly replacing the assembly will increase the cost of use. Summary of the invention

[0004] The present invention aims to at least improve one of the technical problems existing in the prior art. To this end, the present invention proposes a dual-mass flywheel for automobiles with adjustable bidirectional clearance.

[0005] A dual-mass flywheel for automobiles with adjustable bidirectional clearance, comprising:

[0006] A first-stage flywheel has a first through hole at its center, and a pressure plate is arranged on the side of the first through hole. The first-stage flywheel has two symmetrical arc-shaped cavities, each of which has a spring arranged in it, and a spring pad is arranged at the end of the spring; the two arc-shaped cavities are separated by a boss.

[0007] A secondary flywheel is fixedly connected to the pressure plate passing through the first through hole;

[0008] A spring seat is disposed at the end of each arc-shaped cavity and is adapted to the arc-shaped cavity. A partition is disposed in the cavity of the spring seat, and the cavity is divided into a first cavity and a second cavity by the partition. The first cavity is communicated with the arc-shaped cavity, the spring and the spring pad can move along the first cavity, and the side wall of the second cavity is provided with at least two notches;

[0009] A truncated cone, disposed in the second cavity;

[0010] A screw, which penetrates the truncated cone and the partition and is fixed to the partition, wherein the screw has a protrusion that penetrates the partition, and the gap error between the spring and the spring seat can be eliminated by adjusting the length of the protrusion;

[0011] A stud bolt passes through the truncated cone and is fixedly connected to the blind hole on the partition plate, and the stud bolt away from the blind hole locks the truncated cone through a nut;

[0012] At least two locking mechanisms are embedded in the notch and abut against the peripheral side wall of the truncated cone. The position of the spring seat in the arc cavity is locked axially and radially by abutting against different outer diameters of the truncated cone.

[0013] In a possible technical solution, further, there are three notches, one of which faces the secondary flywheel, and the other two are arranged at the inner and outer circumferential positions of the second cavity, and abut against the circumferential side of the cone through a locking mechanism to lock the position of the spring seat in the arc cavity axially and radially.

[0014] In a possible technical solution, further, the central axis of the cone is perpendicular to the plane where the partition is located, and the short diameter surface of the cone faces the partition.

[0015] In a possible technical solution, further, the locking mechanism includes a cover plate and a ball stud, the cover plate close to the truncated cone is provided with a connecting boss, the ball stud is elastically connected to the connecting boss, and can buffer the vibration of the cover plate and the inner wall of the flywheel.

[0016] In a possible technical solution, further, the cover plate includes:

[0017] A first cover plate, having an outer curved surface away from the ball stud, increasing the contact area between the first cover plate and the arc-shaped cavity, and being used to increase the friction force during radial locking;

[0018] A second cover plate, having an inner curved surface facing the ball stud, increasing the contact area between the second cover plate and the arc-shaped cavity, and being used to increase the friction force during radial locking;

[0019] The third cover plate has a plane facing the secondary flywheel, which increases the contact area between the third cover plate and the secondary flywheel and is used to increase the friction force during axial locking.

[0020] In a possible technical solution, further, the end of the ball head column away from the cover plate is hemispherical and is used to abut against the circumference of the truncated cone.

[0021] In a possible technical solution, further, the short-diameter surface is fixedly connected with at least two resilient members, which can not only reset the frustum after loosening the nut, but also provide a pre-tightening force between the frustum and the nut.

[0022] In a possible technical solution, further, the inner ring of the pressure plate is made of wear-resistant material.

[0023] In a possible technical solution, further, the side wall of the second cavity is provided with an adjustment window.

[0024] The flywheel also includes an adjustment window cover plate, which is arranged corresponding to the adjustment window. The adjustment window cover plate is fixed to the primary flywheel through an adjustment window screw. By removing the adjustment window cover plate, the spring seat can be adjusted using an Allen wrench or an open-end wrench.

[0025] In a possible technical solution, further, the flywheel also includes:

[0026] The force transfer plate is a double-eared circular ring structure, with a third through hole at its center and eight evenly distributed connecting holes around the third through hole. The force transfer plate is connected to the secondary flywheel through connecting rivets.

[0027] The automotive dual-mass flywheel with adjustable bidirectional clearance according to the embodiment of the present invention has the following beneficial effects:

[0028] The gap between the spring seat and the spring can be eliminated by tightening the screw, so that the spring does not need to be replaced. The gap between the spring seat and the side wall of the inner cavity of the dual-mass flywheel can be eliminated by tightening the adjusting nut, so that the spring seat also does not need to be replaced, thereby reducing the cost of use.

[0029] The present invention can make the spring seat and the internal slide groove of the dual mass flywheel fit tightly in the axial and radial directions after a gap is generated between the spring seat and the internal slide groove of the dual mass flywheel, and can make the spring fit tightly in the inside of the spring seat opening after a gap is generated between the spring seat and the spring, thereby eliminating abnormal noise and abnormal vibration of the dual mass flywheel during operation, enabling it to better reduce vibration, and achieving the effect of extending the service life of the dual mass flywheel assembly.

[0030] The invention has a simple structure and reliable operation, and the clearance adjustment can be realized without dismantling the entire flywheel, so the adjustment is very convenient.

[0031] Additional aspects and advantages of the present invention will be given in part in the following description and in part will be obvious from the following description, or will be learned through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0033] Figure 1 is a cross-sectional view of a dual-mass flywheel for an automobile with adjustable bidirectional clearance according to an embodiment of the present invention;

[0034] Figure 2 is a three-dimensional exploded view of a dual-mass flywheel for an automobile with adjustable bidirectional clearance according to an embodiment of the present invention;

[0035] Figure 3 is a front three-dimensional half-section view of a dual-mass flywheel for an automobile with adjustable bidirectional clearance according to an embodiment of the present invention;

[0036] Figure 4 is a three-dimensional half-section view of the back side of a dual-mass flywheel for automobile with adjustable bidirectional clearance according to an embodiment of the present invention;

[0037] Figure 5 3D exploded view of a spring seat of a dual-mass flywheel for an automobile with adjustable bidirectional clearance according to an embodiment of the present invention;

[0038] Figure 6 It is a schematic diagram of the radial adjustment direction inside the spring seat;

[0039] Figure 7 It is a schematic diagram of the axial adjustment direction inside the spring seat.

[0040] Reference numerals:

[0041] The first-stage flywheel 1, the arc-shaped cavity 100, the pressure plate 2, the pressure plate connecting rivet 21, the second-stage flywheel 3, the spring seat 4, the partition 40, the first cavity 41, the second cavity 42, the frustum 5, the screw 6, the stud 7, the nut 8, the cover plate 9, the first cover plate 91, the second cover plate 92, the third cover plate 93, the ball stud 10, the spring 11, the spring pad 12, the adjustment window 13, the adjustment window cover plate 14, the adjustment window screw 15, the force transmission plate 16, the connecting rivet 17, and the starting gear ring 18. DETAILED DESCRIPTION

[0042] The embodiments of the present invention are described in detail below. The embodiments described with reference to the accompanying drawings are exemplary. It should be understood that the specific embodiments described herein are only used to explain the present application and are not used to limit the present application.

[0043] It should be noted that when an element is referred to as being "fixed to" another element, it may be directly on the other element or there may be an intermediate element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be an intermediate element at the same time.

[0044] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art to which the present invention belongs. The terms used herein in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention. The term "and / or" used herein includes any and all combinations of one or more of the related listed items.

[0045] The terms "first", "second", "third", etc. in the specification and claims of the present application and the drawings are used to distinguish different objects rather than to describe a specific order. In addition, the terms "including" and "having" and any variations thereof are intended to cover non-exclusive inclusions. For example, a series of steps or units are included, or optionally, steps or units not listed are included, or optionally, other steps or units inherent to these processes, methods, products or devices are included.

[0046] See also Figures 1 to 7 As shown, this embodiment provides a dual-mass flywheel for automobiles with adjustable bidirectional clearance, which includes:

[0047] A first-stage flywheel 1 is provided with a first through hole at its center position, and a pressure plate 2 is provided on the side of the first through hole. The first-stage flywheel 1 has two symmetrical arc-shaped cavities 100, each of which is provided with a spring 11, and a spring pad 12 is provided at the end of the spring 11; the two arc-shaped cavities 100 are separated by a boss.

[0048] The secondary flywheel 3 is fixedly connected to the pressure plate 2 passing through the first through hole;

[0049] A spring seat 4 is disposed at the end of each arc cavity 100 and is adapted to the arc cavity 100 and can move along the arc cavity 100. A partition plate 40 is disposed in the cavity of the spring seat 4, and the cavity is divided into a first cavity 41 and a second cavity 42 by the partition plate 40. The spring seat 4 has an opening toward the arc cavity 100, so that the first cavity 41 communicates with the arc cavity 100. The spring 11 and the spring pad 12 can move along the first cavity 41, and the side wall of the second cavity 42 is provided with at least two notches;

[0050] The truncated cone 5 is disposed in the second cavity 42;

[0051] A screw 6, which passes through the truncated cone 5 and the partition plate 40 and is fixedly connected to the partition plate 40, wherein the screw 6 has a protrusion that passes through the partition plate 40, and the gap error between the spring 11 and the spring seat 4 can be eliminated by adjusting the length of the protrusion;

[0052] A stud bolt 7 is passed through the truncated platform 5 and fixedly connected to the blind hole on the partition plate 40. The stud bolt 7 away from the blind hole locks the truncated platform 5 through a nut 8;

[0053] At least two locking mechanisms are embedded in the notch and abut against the peripheral side walls of the truncated cone 5 , and lock the position of the spring seat 4 in the arc cavity 100 axially and radially by abutting against different outer diameters of the truncated cone 5 .

[0054] It should be noted that there are three notches, corresponding to three locking mechanisms, one of which faces the secondary flywheel 3, and the other two are arranged at the inner and outer circumferential positions of the second cavity 42, and abut against the circumference of the truncated cone 5 through the locking mechanism to lock the position of the spring seat 4 in the arc cavity 100 from the axial and radial directions.

[0055] It should be noted that the central axis of the truncated cone 5 is perpendicular to the plane where the partition 40 is located, and the short-diameter surface of the truncated cone 5 faces the partition 40 .

[0056] It should be noted that the short-diameter surface of the truncated cone 5 refers to the upper surface with a smaller radius.

[0057] It should be noted that the locking mechanism includes a cover plate 9 and a ball stud 10. The cover plate 9 close to the truncated table 5 is provided with a connecting boss. The ball stud 10 is elastically connected to the connecting boss to buffer the vibration between the cover plate 9 and the inner wall of the flywheel.

[0058] It should be noted that limiting feet are provided at the edges of both sides of the cover plate 9 to prevent the cover plate 9 from escaping from the notch.

[0059] It should be noted that the ball stud 10 is connected to the connecting boss via an elastic member, and the elastic member includes but is not limited to a spring.

[0060] It should be noted that the cover plate 9 includes:

[0061] The first cover plate 91 has an outer curved surface facing away from the ball stud 10, which increases the contact area between the first cover plate 91 and the arc cavity 100, and is used to increase the friction force during radial locking;

[0062] The second cover plate 92 has an inner curved surface facing the ball stud 10, which increases the contact area between the second cover plate 92 and the arc cavity 100, and is used to increase the friction force during radial locking;

[0063] The third cover plate 93 has a plane facing the secondary flywheel 3, which increases the contact area between the third cover plate 93 and the secondary flywheel 3, and is used to increase the friction force during axial locking.

[0064] It should be noted that the end of the ball stud 10 away from the cover plate 9 is hemispherical and is used to abut against the circumference of the truncated cone 5 .

[0065] It should be noted that the short-diameter surface is fixedly connected with at least two resilient members, which can not only reset the frustum 5 after loosening the nut 8 , but also provide a pre-tightening force between the frustum 5 and the nut 8 .

[0066] It should be noted that the resilient members are symmetrically distributed about the central axis of the truncated cone, and include but are not limited to short springs.

[0067] It should be noted that a second through hole is provided at the center position of the pressure plate 2, and three connecting through holes are evenly provided around the circumference of the second through hole. After one end of the pressure plate 2 passes through the first through hole of the first-stage flywheel 1, it is connected to the second-stage flywheel 3 at the second through hole on the pressure plate 2 by a pressure plate connecting rivet 21 to ensure the axial fixation of the first-stage flywheel 1 and the second-stage flywheel 3. The inner ring of the pressure plate 2 is made of wear-resistant material.

[0068] It should be noted that the flywheel also includes a force transfer plate 16, which is a double-eared circular ring structure, with a third through hole at its center, and eight connecting holes evenly distributed around the third through hole. The force transfer plate 16 is connected to the secondary flywheel 3 by connecting rivets 17.

[0069] It should be noted that the spring washer 12 is composed of two upper and lower cylinders of different diameters that cooperate with the inner and outer circles of the spring 11 so that it can be fixed in the opening of the spring seat 4. The surface of the spring washer 12 and the inner wall of the opening of the spring seat 4 are coated with grease, which can reduce the wear between the spring 11 and the inner wall of the spring seat 4.

[0070] It should be noted that a starting gear ring 18 is fixedly welded on the outer cylindrical shell of the first-stage flywheel 1, and eight threaded holes are symmetrically distributed on the side of the first-stage flywheel 1 facing away from the second-stage flywheel 3, which are connected to the engine crankshaft through screws. A spline is provided at the central axis of the second-stage flywheel 3 to connect with the gearbox input shaft. The starting gear ring 18 on the first-stage flywheel 1 is driven to rotate by the starter of the engine, driving the engine to ignite and start.

[0071] The automotive dual-mass flywheel with adjustable bidirectional clearance according to the embodiment of the present invention has the following beneficial effects:

[0072] The gap between the spring seat and the spring can be eliminated by tightening the screw, so that the spring does not need to be replaced. The gap between the spring seat and the side wall of the inner cavity of the dual-mass flywheel can be eliminated by tightening the adjusting nut, so that the spring seat also does not need to be replaced, thereby reducing the cost of use.

[0073] The present invention can make the spring seat and the internal slide groove of the dual mass flywheel fit tightly in the axial and radial directions after a gap is generated between the spring seat and the internal slide groove of the dual mass flywheel, and can make the spring fit tightly in the inside of the spring seat opening after a gap is generated between the spring seat and the spring, thereby eliminating abnormal noise and abnormal vibration of the dual mass flywheel during operation, enabling it to better reduce vibration, and achieving the effect of extending the service life of the dual mass flywheel assembly.

[0074] The invention has simple structure and reliable operation.

[0075] Example 2

[0076] This embodiment provides a dual-mass flywheel for automobiles with adjustable bidirectional clearance, which includes:

[0077] A first-stage flywheel 1 is provided with a first through hole at its center position, and a pressure plate 2 is provided on the side of the first through hole. The first-stage flywheel 1 has two symmetrical arc-shaped cavities 100, each of which is provided with a spring 11, and a spring pad 12 is provided at the end of the spring 11; the two arc-shaped cavities 100 are separated by a boss.

[0078] The secondary flywheel 3 is fixedly connected to the pressure plate 2 passing through the first through hole;

[0079] A spring seat 4 is disposed at the end of each arc cavity 100 and is adapted to the arc cavity 100. A partition 40 is disposed in the cavity of the spring seat 4, and the cavity is divided into a first cavity 41 and a second cavity 42 by the partition 40. The spring seat 4 has an opening toward the arc cavity 100, so that the first cavity 41 is communicated with the arc cavity 100. The spring 11 and the spring pad 12 can move along the first cavity 41. The side wall of the second cavity 42 is provided with three notches, and the side wall of the second cavity 42 is provided with an adjustment window 13;

[0080] The truncated cone 5 is disposed in the second cavity 42;

[0081] A screw 6, which passes through the truncated cone 5 and the partition plate 40 and is fixedly connected to the partition plate 40, wherein the screw 6 has a protrusion that passes through the partition plate 40, and the gap error between the spring 11 and the spring seat 4 can be eliminated by adjusting the length of the protrusion;

[0082] A stud bolt 7 is passed through the truncated platform 5 and fixedly connected to the blind hole on the partition plate 40. The stud bolt 7 away from the blind hole locks the truncated platform 5 through a nut 8;

[0083] Three locking mechanisms are embedded in the notch and abut against the peripheral side wall of the truncated cone 5 . By abutting against different outer diameters of the truncated cone 5 , the position of the spring seat 4 in the arc cavity 100 is locked axially and radially.

[0084] The adjusting window cover 14 is arranged corresponding to the adjusting window 13 , and the adjusting window cover 14 is fixed on the primary flywheel 1 through the adjusting window screw 15 . By removing the adjusting window cover 14 , the spring seat 4 can be adjusted using an Allen wrench or an open-end wrench.

[0085] The automotive dual-mass flywheel with adjustable bidirectional clearance according to the embodiment of the present invention has the following beneficial effects:

[0086] The gap between the spring seat and the spring can be eliminated by tightening the screw, so that the spring does not need to be replaced. The gap between the spring seat and the side wall of the inner cavity of the dual-mass flywheel can be eliminated by tightening the adjusting nut, so that the spring seat also does not need to be replaced, thereby reducing the cost of use.

[0087] The present invention can make the spring seat and the internal slide groove of the dual mass flywheel fit tightly in the axial and radial directions after a gap is generated between the spring seat and the internal slide groove of the dual mass flywheel, and can make the spring fit tightly in the inside of the spring seat opening after a gap is generated between the spring seat and the spring, thereby eliminating abnormal noise and abnormal vibration of the dual mass flywheel during operation, enabling it to better reduce vibration, and achieving the effect of extending the service life of the dual mass flywheel assembly.

[0088] The invention has a simple structure and reliable operation, and the clearance adjustment can be realized without dismantling the entire flywheel, so the adjustment is very convenient.

[0089] Example 3

[0090] This embodiment provides a dual-mass flywheel for automobiles with adjustable bidirectional clearance, which includes:

[0091] A first-stage flywheel 1 is provided with a first through hole at its center, and a pressure plate 2 is provided on the side of the first through hole. The first-stage flywheel 1 has two symmetrical arc-shaped cavities 100, each of which is provided with a spring 11, and a spring pad 12 is provided at the end of the spring 11; the two arc-shaped cavities 11 are separated by a boss.

[0092] The secondary flywheel 3 is fixedly connected to the pressure plate 2 passing through the first through hole;

[0093] A spring seat 4 is disposed at the end of each arc cavity 100 and is adapted to the arc cavity 100. A partition 40 is disposed in the cavity of the spring seat 4, and the cavity is divided into a first cavity 41 and a second cavity 42 by the partition 40. The spring seat 4 has an opening toward the arc cavity 100, so that the first cavity 41 communicates with the arc cavity 100. The spring 11 and the spring pad 12 can move along the first cavity 41, and the side wall of the second cavity 42 is provided with at least two notches;

[0094] A regular tetrahedron, disposed in the second cavity 42;

[0095] A screw 6, which passes through the square pyramid and the partition 40 and is fixed to the partition 40, and the screw 6 has a protrusion that passes through the partition 40, and the gap error between the spring 11 and the spring seat 4 is eliminated by adjusting the length of the protrusion;

[0096] A stud bolt 7 is passed through the square pyramid and fixedly connected to the blind hole on the partition 40. The stud bolt 7 away from the blind hole locks the square pyramid through a nut 8.

[0097] Three locking mechanisms are embedded in the notch and abut against the peripheral side walls of the regular quadrangular pyramid. By abutting against different outer diameters of the regular quadrangular pyramid, the position of the spring seat 4 in the arc cavity 100 is locked axially and radially.

[0098] It should be noted that there are three notches, corresponding to three locking mechanisms, one of which faces the secondary flywheel 3, and the other two are respectively arranged at the inner and outer circumferential positions of the second cavity 42, and abut against the circumference of the regular tetrahedron through the locking mechanism to lock the position of the spring seat 4 in the arc cavity 100 from the axial and radial directions.

[0099] It should be noted that the central axis of the regular quadrangular pyramid is perpendicular to the plane where the partition 40 is located, and the small square surface of the regular quadrangular pyramid faces the partition 40 .

[0100] It should be noted that the truncated cone 5 and the regular tetrahedron in the present application are only some examples in the present solution and cannot be used as a technical solution to limit the present application. The regular tetrahedron in the present application can also be replaced by a prism structure with a polygonal shape.

[0101] It should be noted that the locking mechanism includes a cover plate 9 and a ball head column 10. The cover plate 9 close to the regular tetrahedron is provided with a connecting boss. The ball head column 10 is elastically connected to the connecting boss to buffer the vibration between the cover plate 9 and the inner wall of the flywheel.

[0102] It should be noted that the end of the ball head column 10 away from the cover plate 9 is hemispherical and is used to abut against the peripheral side of the regular tetrahedron.

[0103] It should be noted that two resilient parts are fixedly connected to the surface of the regular tetrahedron located on the small square surface, which can not only reset the regular tetrahedron after loosening the nut 8, but also provide a pre-tightening force between the regular tetrahedron and the nut 8.

[0104] It should be noted that the resilient members are symmetrically distributed about the central axis of the regular tetrahedron, including but not limited to short springs.

[0105] The automotive dual-mass flywheel with adjustable bidirectional clearance according to the embodiment of the present invention has the following beneficial effects:

[0106] The gap between the spring seat and the spring can be eliminated by tightening the screw, so that the spring does not need to be replaced. The gap between the spring seat and the side wall of the inner cavity of the dual-mass flywheel can be eliminated by tightening the adjusting nut, so that the spring seat also does not need to be replaced, thereby reducing the cost of use.

[0107] The present invention can make the spring seat and the internal slide groove of the dual mass flywheel fit tightly in the axial and radial directions after a gap is generated between the spring seat and the internal slide groove of the dual mass flywheel, and can make the spring fit tightly in the inside of the spring seat opening after a gap is generated between the spring seat and the spring, thereby eliminating abnormal noise and abnormal vibration of the dual mass flywheel during operation, enabling it to better reduce vibration, and achieving the effect of extending the service life of the dual mass flywheel assembly.

[0108] In the description of the present invention, it is to be understood that the terms “center”, “longitudinal”, “lateral”, “length”, “width”, “thickness”, “up”, “down”, “front”, “back”, “left”, “right”, “vertical”, “horizontal”, “top”, “bottom”, “inside”, “outside”, “clockwise”, “counterclockwise”, “axial”, “radial”, “circumferential”, etc., indicating orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation to the invention.

[0109] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "illustrative embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials, or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example.

[0110] Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Mentioning "embodiment" in this article means that the specific features, structures or characteristics described in conjunction with the embodiment may be included in at least one embodiment of the present embodiment application. The appearance of this phrase in various positions in the specification is not necessarily the same embodiment, nor is it an independent or alternative embodiment that is mutually exclusive with other embodiments. It can be explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of this application.

[0111] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.

Claims

1. A dual-mass flywheel for automobiles with adjustable bidirectional clearance, characterized in that: include: A first-stage flywheel (1), wherein a first through hole is arranged at a central position thereof, and a pressure plate (2) is arranged on the side of the first through hole, the first-stage flywheel (1) having two symmetrical arc-shaped cavities (100), each of the arc-shaped cavities (100) correspondingly having a spring (11), and a spring pad (12) correspondingly arranged at the end of the spring (11); A secondary flywheel (3) fixedly connected to the pressure plate (2) passing through the first through hole; A spring seat (4) is disposed at both ends of each arc-shaped cavity (100) and is adapted to the arc-shaped cavity (100) and can move along the arc-shaped cavity (100); a partition plate (40) is disposed in the cavity of the spring seat (4); the cavity is divided into a first cavity (41) and a second cavity (42) by the partition plate (40); the spring seat (4) has an opening toward the arc-shaped cavity (100) so that the first cavity (41) communicates with the arc-shaped cavity (100); the spring (11) and the spring pad (12) can move along the first cavity (41); and the second cavity (42) has three notches; A truncated cone (5) disposed in the second cavity (42); a screw (6) fixedly connected to the partition (40), the screw (6) having a protruding portion penetrating the partition (40), and the gap error between the spring (11) and the spring seat (4) being eliminated by adjusting the length of the protruding portion; A stud bolt (7) fixedly connected to the blind hole on the partition (40), and the other end of which is used to lock the round table (5) via a nut (8); Three adjustment mechanisms are embedded in the notch in a one-to-one correspondence, one of which faces the secondary flywheel (3), and the other two are arranged at inner and outer circumferential positions of the second cavity (42), the adjustment mechanism comprising a cover plate (9) and a ball head column (10), the cover plate (9) close to the truncated table (5) is provided with a connecting boss, the ball head column (10) is elastically connected to the connecting boss, and the cover plate (9) comprises: A first cover plate (91) having an outer curved surface facing away from the ball stud (10); A second cover plate (92) having an inner curved surface facing the ball stud (10); A third cover plate (93) having a flat surface facing the secondary flywheel (3); The adjustment mechanism abuts against the peripheral side wall of the truncated cone (5), and by abutting against different outer diameters of the truncated cone (5), after a gap is generated between the spring seat (4) and the arc-shaped cavity (100), the spring seat (4) and the arc-shaped cavity (100) can be tightly fitted in the axial and radial directions.

2. The automotive dual-mass flywheel with adjustable bidirectional clearance according to claim 1, characterized in that: The central axis of the truncated cone (5) is perpendicular to the plane where the partition (40) is located, and the short-diameter surface of the truncated cone (5) faces the partition (40).

3. The automotive dual-mass flywheel with adjustable bidirectional clearance according to claim 1, characterized in that: The end of the ball head column (10) away from the cover plate (9) is hemispherical.

4. The automotive dual-mass flywheel with bidirectional gap adjustment according to claim 2, characterized in that: The short-diameter surface is fixedly connected with at least two resilient members.

5. The automotive dual-mass flywheel with adjustable bidirectional clearance according to claim 1, characterized in that: The inner ring of the pressure plate (2) is made of wear-resistant material.

6. The automotive dual-mass flywheel with adjustable bidirectional clearance according to claim 1, characterized in that: The side wall of the second cavity (42) is also provided with an adjustment window (13). The flywheel further comprises an adjustment window cover plate (14) which is arranged corresponding to the adjustment window (13); the adjustment window cover plate (14) is fixed to the primary flywheel (1) via an adjustment window screw (15).

7. The automotive dual-mass flywheel with adjustable bidirectional clearance according to claim 1, characterized in that: The flywheel also includes, The force transmission plate (16) is a double-eared annular structure, a third through hole is provided at the center thereof, and evenly distributed connecting holes are provided around the third through hole. The force transmission plate (16) is connected to the secondary flywheel (3) via connecting rivets (17).

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