CN216895548U

CN216895548U - Multistage rigidity dual mass flywheel

Info

Publication number: CN216895548U
Application number: CN202122780702.4U
Authority: CN
Inventors: 方兵; 姚君
Original assignee: Changzhou Laike Intelligent Technology Co ltd
Current assignee: Changzhou Laike Intelligent Technology Co ltd
Priority date: 2021-11-15
Filing date: 2021-11-15
Publication date: 2022-07-05
Anticipated expiration: 2031-11-15

Abstract

The utility model discloses a multistage-rigidity dual-mass flywheel which comprises a first mass flywheel, a second mass flywheel and a torsion damping mechanism. The beneficial effects of the utility model are: lubricating oil is arranged on the side surface in the guide groove, and the fixed block, the guide block, the first movable block and the second movable block can slide in the guide groove, so that the friction force between the fixed block and the guide groove can be reduced, the abrasion on a flywheel component is reduced, and the service life of the dual-mass flywheel is prolonged; by arranging a plurality of groups of compression springs and permanent magnets, when the torsion angle of the engine is small, the permanent magnets are far away from each other, the repulsion force is small, the compression degree of the compression springs is small, and the idle speed vibration can be fully separated; when the corner is great, the permanent magnet interval diminishes, and rigidity increase, compression spring's compression degree is big, can guarantee that whole process torsional vibration is all smaller, and when the corner was too big, compression spring lost elastic capacity, also can realize the shock attenuation to the car through the repulsion between the permanent magnet this moment.

Description

Multistage rigidity dual mass flywheel

Technical Field

The utility model relates to a dual-mass flywheel, in particular to a multistage rigidity dual-mass flywheel, and belongs to the technical field of dual-mass flywheels.

Background

The dual-mass flywheel is usually used as a shock absorber in the power transmission process of an automobile to reduce the torsional vibration of an output shaft of an engine, so that the automobile has better NVH performance. The dual-mass flywheel is generally arranged between an engine and a gearbox, and an output shaft of the engine is fixedly connected with one of the mass flywheels to drive the flywheels to rotate; the other mass flywheel is adapted to be fixed to the input shaft of the gearbox to transfer power to the gearbox.

The existing dual-mass flywheel has some problems in use:

1) the traditional metal spring is mostly adopted as an elastic element in the existing double-mass flywheel. The springs may be provided in multiple sets to achieve multiple levels of stiffness. The metal spring as the elastic member causes the following problems: the spring is easy to deform and attenuate, so that the performance of the dual-mass flywheel is reduced, and once the torsional force is large, the spring can lose elasticity, so that the dual-mass flywheel cannot be used continuously;

2) the sliding between the existing double-mass flywheel guide groove and each moving block has large friction, so that the flywheel assembly is easily abraded, and the service life of the flywheel assembly is shortened.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the problems and provide a multistage rigidity dual-mass flywheel.

The utility model realizes the purpose through the following technical scheme: comprises that

One side of the first mass flywheel is connected with an output shaft of an automobile engine through a connecting shaft;

the axis position of one side of the second mass flywheel is connected with the output shaft of the transmission, a mounting hole is formed in the center positions of the first mass flywheel and the second mass flywheel, and a threaded hole is formed in the periphery of the mounting hole of the second mass flywheel;

and the torsional vibration damping mechanism is arranged in the guide groove arranged on the inner side of the first mass flywheel, so that the natural frequency of an engine and a transmission vibration system can be reduced, and resonance is avoided when the engine and the transmission rotate at an idle speed.

As a still further scheme of the utility model: the inboard that lies in the guide way in the first quality flywheel is provided with the axle sleeve board, and its cooperation through between fixing bolt and the screw hole installs in one side of second quality flywheel, the fixed block is installed to the bilateral symmetry of axle sleeve board, rotate between axle sleeve board and the first quality flywheel and be connected.

As a still further scheme of the utility model: and guide blocks are respectively arranged on two sides of the fixed block in the guide grooves.

As a still further scheme of the utility model: torsion damping mechanism comprises a plurality of slip settings at the inside movable block one of guide way and movable block two, the spacing groove has all been seted up on movable block one and the movable block two, and two relative spacing inslot rigid couplings have compression spring, and compression spring is provided with a plurality ofly, and compression spring sets to the arc.

As a still further scheme of the utility model: the adjacent sides of the first movable block and the second movable block are fixedly connected with a first permanent magnet and a second permanent magnet respectively, and the opposite sides of the first permanent magnet and the second permanent magnet belong to the same magnetic pole.

As a still further scheme of the utility model: lubricating oil is arranged on the side surface of the inner portion of the guide groove, and the fixed block, the guide block, the first movable block and the second movable block can slide in the guide groove.

The utility model has the beneficial effects that:

1) the lubricating oil is arranged on the inner side surface of the guide groove, and the fixed block, the guide block, the first movable block and the second movable block can slide in the guide groove, so that the friction force between the fixed block, the guide block, the first movable block and the second movable block and the guide groove can be reduced, the abrasion of a flywheel component is reduced, and the service life of the dual-mass flywheel is prolonged;

2) according to the utility model, by arranging the plurality of groups of compression springs and the plurality of groups of permanent magnets, when the torsion angle of the engine is smaller, the distance between the permanent magnets is farther, the repulsion force is small, and at the moment, the compression degree of the compression springs is small, so that idle vibration can be fully separated; when the corner is great, the permanent magnet interval diminishes, and rigidity increase, compression spring's compression degree is big this moment, can guarantee that whole process torsional vibration is all smaller, and when the corner was too big, compression spring lost the elastic capacity, and the repulsion through between the permanent magnet this moment also can realize the shock attenuation to the car.

Drawings

FIG. 1 is a schematic view of the overall installation structure of a dual mass flywheel of the present invention;

FIG. 2 is a schematic diagram of the internal structure of the dual mass flywheel of the present invention;

fig. 3 is an enlarged schematic view of a portion a in fig. 2.

In the figure: 1. the device comprises a first mass flywheel 2, a second mass flywheel 3, a mounting hole 4, a threaded hole 5, a shaft sleeve plate 6, a fixed block 7, a guide block 8, a guide groove 9, a compression spring 10, a movable block I, a movable block II, a compression spring 12, a permanent magnet I, a permanent magnet II and a permanent magnet II.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Example one

Referring to fig. 1 to 3, a multi-level stiffness dual mass flywheel includes

One side of the first mass flywheel 1 is connected with an output shaft of an automobile engine through a connecting shaft;

the axis position of one side of the second mass flywheel 2 is connected with the output shaft of the transmission, the center positions of the first mass flywheel 1 and the second mass flywheel 2 are provided with mounting holes 3, and the periphery of the second mass flywheel 2, which is positioned in the mounting holes 3, is provided with threaded holes 4;

and a torsional vibration damping mechanism which is arranged in the guide groove 8 arranged on the inner side of the first mass flywheel 1, and can reduce the natural frequency of the vibration system of the engine and the transmission by arranging the torsional vibration damping mechanism so as to avoid resonance generated at the idling speed.

In the embodiment of the utility model, lubricating oil is arranged on the inner side surface of the guide groove 8, and the fixed block 6, the guide block 7, the first movable block 10 and the second movable block 11 can slide in the guide groove 8, so that the friction between the fixed block and the guide groove 8 is reduced, and the damping effect is improved.

Example two

Referring to fig. 1 to 3, a multi-level stiffness dual mass flywheel includes

In the embodiment of the utility model, a shaft sleeve plate 5 is arranged in the first mass flywheel 1 and positioned at the inner side of the guide groove 8, and is installed at one side of the second mass flywheel 2 through the matching action between the fixing bolt and the threaded hole 4, fixing blocks 6 are symmetrically installed at two sides of the shaft sleeve plate 5, and the shaft sleeve plate 5 is rotatably connected with the first mass flywheel 1, so that the torsional force of the first mass flywheel 1 can be conveniently transmitted to the second mass flywheel 2.

In the embodiment of the utility model, the guide grooves 8 are respectively provided with the guide blocks 7 at two sides of the fixed block 6, so that the rotation of the second mass flywheel 2 can be conveniently guided.

In the embodiment of the utility model, the torsion vibration reduction mechanism is composed of a plurality of first movable blocks 10 and second movable blocks 11 which are arranged in the guide groove 8 in a sliding manner, limiting grooves 12 are respectively formed in the first movable blocks 10 and the second movable blocks 11, compression springs 9 are fixedly connected in the two opposite limiting grooves 12, the compression springs 9 are arranged in a plurality of arc shapes, and irregular vibration generated by an engine can be effectively reduced by arranging the compression springs 9.

In the embodiment of the utility model, the adjacent sides of the first movable block 10 and the second movable block 11 are respectively fixedly connected with a first permanent magnet 13 and a second permanent magnet 14, the opposite sides of the first permanent magnet 13 and the second permanent magnet 14 belong to the same magnetic pole, and by arranging the first permanent magnet 13 and the second permanent magnet 14, when the torsion angle of the engine is smaller, the distance between the permanent magnets is longer, the repulsion force is small, and the idle vibration can be separated; when the corner is larger, the distance between the permanent magnets is smaller, the rigidity is increased, and the torsional vibration in the whole process can be ensured to be smaller by matching with the compression spring 9.

The working principle is as follows: when the multistage-rigidity dual-mass flywheel is used, the second mass flywheel 2 is firstly installed on the shaft sleeve plate 5 through the matching action between the fixing bolt and the threaded hole 4, then the shaft sleeve plate 5 is installed in the guide groove 8 arranged in the first mass flywheel 1 through the fixing blocks 6 arranged on two sides, the first mass flywheel 1 is connected with the output shaft of an automobile engine, the second mass flywheel 2 is connected with the output shaft of a transmission, when the automobile runs, the torsional force of the engine can be transmitted to the second mass flywheel 2 through the torsional vibration reduction mechanism, when the torsional angle of the engine is small, the distance between the permanent magnets is far, the repulsive force is small, and at the moment, the compression degree of the compression spring 9 is small, and the compression spring can fully separate the idle vibration; when the corner is larger, the distance between the permanent magnets is smaller, the compression degree of the compression spring 9 is larger, the rigidity is increased, and the torsional vibration in the whole process is smaller by matching with the compression spring 9.

It will be evident to those skilled in the art that the utility model is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the utility model being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.

Claims

1. A multi-stage rigidity dual-mass flywheel is characterized by comprising

A first mass flywheel (1) having one side connected to an output shaft of an automobile engine via a connecting shaft;

the axis position of one side of the second mass flywheel (2) is connected with the output shaft of the transmission, the center positions of the first mass flywheel (1) and the second mass flywheel (2) are provided with mounting holes (3), and the periphery of the second mass flywheel (2) positioned in the mounting holes (3) is provided with threaded holes (4);

and a torsional vibration damping mechanism which is arranged in a guide groove (8) arranged on the inner side of the first mass flywheel (1), and can reduce the natural frequency of an engine and a transmission vibration system so as to avoid resonance when idling.

2. A multi-stage stiffness dual mass flywheel as claimed in claim 1 wherein: the inboard that lies in guide way (8) in first quality flywheel (1) is provided with axle sleeve board (5), and its cooperation through between fixing bolt and screw hole (4) installs one side at second quality flywheel (2), fixed block (6) are installed to the bilateral symmetry of axle sleeve board (5), rotate between axle sleeve board (5) and first quality flywheel (1) and be connected.

3. A multi-stage stiffness dual mass flywheel as claimed in claim 1 wherein: and guide blocks (7) are respectively arranged on two sides of the fixed block (6) in the guide groove (8).

4. A multi-stage stiffness dual mass flywheel as claimed in claim 1 wherein: torsion damping mechanism comprises a plurality of slip settings at inside movable block one (10) of guide way (8) and movable block two (11), spacing groove (12) have all been seted up on movable block one (10) and movable block two (11), and the rigid coupling has compression spring (9) in two relative spacing grooves (12), and compression spring (9) are provided with a plurality ofly, and compression spring (9) set to the arc.

5. A multi-stage stiffness dual mass flywheel as claimed in claim 4 wherein: the adjacent sides of the first movable block (10) and the second movable block (11) are fixedly connected with a first permanent magnet (13) and a second permanent magnet (14) respectively, the opposite sides of the first permanent magnet (13) and the second permanent magnet (14) belong to the same magnetic pole, and the first permanent magnet (13) and the second permanent magnet (14) are arranged.

6. A multi-stage stiffness dual mass flywheel as claimed in claim 1 wherein: lubricating oil is arranged on the inner side surface of the guide groove (8), and the fixed block (6), the guide block (7), the first movable block (10) and the second movable block (11) can slide in the guide groove (8).