CN214578601U - Dual-mass flywheel with torsion limiting structure - Google Patents

Abstract

The utility model discloses a dual mass flywheel with torque-limiting structure, which relates to the technical field of automobiles and comprises a primary flywheel component and a secondary flywheel component, wherein the primary flywheel component comprises a gear ring, a front shell and a bearing seat, the gear ring is fixedly connected on the outer circumference of the front shell, the bearing seat is arranged at the center of the front shell, the secondary flywheel component comprises a force transfer plate, a friction disc, a disc spring, a connecting ring and a pressure ring, the force transfer plate is arranged in the front shell, an arc spring is arranged between the force transfer plate and the front shell, the pressure ring, the friction disc, the disc spring and the connecting ring are sequentially overlapped from right to left, the pressure ring, the friction disc and the connecting ring are riveted together through rivets, when the dual mass flywheel is additionally impacted, the friction disc can generate relative torsion with the disc and the pressure ring, thereby skidding occurs, the system is ensured to limit torque impact when being impacted by larger torque, the flywheel can not transmit excessive torque, the dual-mass flywheel can be protected from being damaged, and the durability of the dual-mass flywheel can be improved.

Description

Dual-mass flywheel with torsion limiting structure

Technical Field

The utility model relates to the field of automotive technology, concretely relates to dual mass flywheel with limit knob structure.

Background

The dual-mass flywheel is characterized in that an original flywheel is divided into two parts: one part of the flywheel is reserved on one side of the original engine and plays the role of an original flywheel for starting and transmitting the rotation torque of the engine, and the part is called a primary flywheel assembly; and the other part is arranged on one side of the transmission system and is used for improving the rotational inertia of the transmission, and the part is called a secondary flywheel assembly.

An annular oil chamber is formed between the primary flywheel assembly and the secondary flywheel assembly, and a torsional damper is arranged in the oil chamber. The torsional damper connects the primary flywheel assembly and the secondary flywheel assembly as a unit. The dual-mass flywheel can effectively attenuate the torsional vibration of the power transmission system, reduce the low-order natural frequency of the automobile transmission system, prolong the service life of each part in the automobile transmission system and improve the riding comfort of the automobile.

Obviously, the dual-mass flywheel plays a crucial role in the power transmission system of the automobile, and because the dual-mass flywheel matched with a manual transmission or a hybrid power can generate extra large impact torque under certain use conditions, the dual-mass flywheel is easy to damage, and the service life of the dual-mass flywheel is shortened.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a dual mass flywheel with limit turns round structure to solve the problem mentioned in the above-mentioned background art.

A dual mass flywheel with a torque-limiting structure comprises a primary flywheel component and a secondary flywheel component, wherein the primary flywheel component comprises a gear ring, a front shell, a bearing seat and a rear shell, the gear ring is fixedly connected with the front shell, the bearing seat is arranged at the center of the front shell, 2 annular grooves are formed in the front shell, 2 annular grooves are also formed in the rear shell, the rear shell is fixedly connected with the front shell, and an arc-shaped spring is arranged in each annular groove;

secondary flywheel subassembly includes biography power board, friction disk, dish spring, go-between and clamping ring, the biography power board is located between procapsid and the back casing, and is located between the arc spring, the clamping ring is located the friction disk, clamping ring, friction disk, dish spring and go-between overlap mutually from the right side to a left side in proper order and place, and pass through rivet riveting together by biography power board, clamping ring, friction disk and go-between.

Preferably, the primary flywheel assembly is connected to an engine.

Preferably, the secondary flywheel assembly is connected to a gearbox.

The utility model has the advantages that: when the dual-mass flywheel receives extra impact, the friction disc can be twisted with the disc spring and the compression ring relatively, so that slipping occurs, the system is guaranteed to be limited in torque impact when being impacted by large torque, the flywheel does not transmit excessive torque, the dual-mass flywheel is protected from being damaged, and the durability of the dual-mass flywheel is improved.

Drawings

FIG. 1 is a full sectional view of the flywheel;

FIG. 2 is a schematic structural view of a force transfer plate;

FIG. 3 is a cross-sectional view of a force transfer plate;

FIG. 4 is a schematic view of the attachment ring;

FIG. 5 is a cross-sectional view of the attachment ring;

FIG. 6 is a schematic structural view of a disc spring;

FIG. 7 is a cross-sectional view of the friction disk;

FIG. 8 is a schematic view of the compression ring;

FIG. 9 is a cross-sectional view of the pressure ring;

FIG. 10 is a schematic view of the front housing and the force transfer plate;

fig. 11 is a schematic structural view of the front case.

In the figure: 1-gear ring, 2-front shell, 3-bearing seat, 4-arc spring, 5-force transmission plate, 6-friction disk, 7-disc spring, 8-connecting ring, 9-rivet, 10-press ring, 11-rear shell and 21-annular groove.

Detailed Description

In order to make the technical means, creation features, achievement purposes and functions of the present invention easy to understand, the present invention is further described below with reference to the following embodiments.

As shown in fig. 1 to 11, a dual mass flywheel with a torque-limiting structure includes a primary flywheel assembly and a secondary flywheel assembly, the primary flywheel assembly includes a gear ring 1, a front housing 2, a bearing seat 3 and a rear housing 11, the gear ring 1 is fixedly connected with the front housing 2, the bearing seat 3 is disposed at the center of the front housing 2, the front housing 2 is provided with 2 annular grooves 21, the rear housing 11 is also provided with 2 annular grooves 21, the rear housing 11 is fixedly connected with the front housing 2, and an arc-shaped spring 4 is disposed in the annular groove 21;

secondary flywheel subassembly includes biography power board 5, friction disk 6, dish spring 7, go-between 8 and clamping ring 10, biography power board 5 is located between procapsid 2 and the back casing, and is located between the arc spring 4, clamping ring 10 is located friction disk 6, clamping ring 10, friction disk 6, dish spring 7 and go-between 8 overlap mutually in proper order from the right side to a left side and place, and passes power board 5, clamping ring 10, friction disk 6 and go-between 8 through rivet 9 riveting together.

In this embodiment, the primary flywheel assembly is characterized by being connected to an engine.

In this embodiment, the secondary flywheel assembly is connected to a transmission.

The working process and the principle thereof are as follows:

when the flywheel normally works, there is frictional force in 6 left surfaces of friction disk and dish spring 7, 6 right medial surfaces of friction disk also have a frictional force with clamping ring 10, three part keeps relative quiescent condition under the effect of frictional force, when the flywheel receives extra impact, can bear great moment of torsion on the friction disk 6, when the moment of torsion is greater than the frictional force between friction disk 6 and clamping ring 10 and the dish spring 7, friction disk 6 this moment can produce certain relative torsion with dish spring 7 and clamping ring 10, thereby take place to skid, restrict excessive torque transfer, thereby realize the protection to the flywheel, improve the durability of flywheel.

Based on the above: when the dual-mass flywheel receives extra impact, the friction disc can be twisted with the disc spring and the compression ring relatively, so that slipping occurs, the system is guaranteed to be limited in torque impact when being impacted by large torque, the flywheel does not transmit excessive torque, the dual-mass flywheel is protected from being damaged, and the durability of the dual-mass flywheel is improved.

It will be appreciated by those skilled in the art that the invention may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. The embodiments disclosed above are therefore to be considered in all respects as illustrative and not restrictive. All changes which come within the scope of the invention or which are equivalent to the scope of the invention are embraced by the invention.

Claims (3)

1. The dual-mass flywheel with the torque limiting structure is characterized by comprising a primary flywheel component and a secondary flywheel component, wherein the primary flywheel component comprises a gear ring (1), a front shell (2), a bearing seat (3) and a rear shell (11), the gear ring (1) is fixedly connected with the front shell (2), the bearing seat (3) is arranged at the center of the front shell (2), 2 annular grooves (21) are formed in the front shell (2) and the rear shell (11), the rear shell (11) is fixedly connected with the front shell (2), and an arc-shaped spring (4) is arranged in each annular groove (21);

secondary flywheel subassembly includes biography power board (5), friction disk (6), dish spring (7), go-between (8) and clamping ring (10), between procapsid (2) and the back casing is located in biography power board (5), and is located between arc spring (4), clamping ring (10) are located friction disk (6), clamping ring (10), friction disk (6), dish spring (7) and go-between (8) are folded up from the right side to a left side in proper order and are placed, and just pass power board (5), clamping ring (10), friction disk (6) and go-between (8) through rivet (9) riveting together.

2. A dual mass flywheel with torque limiting structure as defined in claim 1 wherein said primary flywheel assembly is connected to an engine.

3. A dual mass flywheel with torque limiting structure as claimed in claim 1 wherein said secondary flywheel assembly is connected to a transmission.

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