CN211009729U

CN211009729U - Dual-mass flywheel

Info

Publication number: CN211009729U
Application number: CN201921657101.0U
Authority: CN
Inventors: 周孟祥; 刘燚军; 李必刚; 黎凡
Original assignee: HUBEI LIOHO-TIANLUN MACHINERY CO LTD
Current assignee: HUBEI LIOHO-TIANLUN MACHINERY CO LTD
Priority date: 2019-09-30
Filing date: 2019-09-30
Publication date: 2020-07-14
Anticipated expiration: 2029-09-30

Abstract

The utility model provides a dual mass flywheel, includes elementary mass flywheel, secondary mass flywheel, torsional vibration damper, elementary mass flywheel and supporting disk fixed connection, the outer lane on the supporting disk is equipped with the location boss, secondary mass flywheel includes driver plate, spline hub, driver plate, spline hub riveting are in the same place, the inboard of spline hub is provided with the indent structure with location boss looks adaptation, the outside of indent structure is equipped with the driver plate, form the annular oil pocket between elementary mass flywheel and the secondary mass flywheel, be equipped with the torsional vibration damper in the annular oil pocket, driver plate and secondary mass flywheel pass through the torsional vibration damper and couple into a whole. The utility model discloses excircle location boss adopts machine tooling shaping, and is efficient.

Description

Dual-mass flywheel

Technical Field

The utility model belongs to the technical field of the automobile transmission part and specifically relates to a dual mass flywheel.

Background

The automobile power transmission system is a multi-degree-of-freedom torsional vibration system, and torsional vibration and noise generated by the torsional vibration are important aspects influencing the service performance of an automobile. The dual-mass flywheel is used between an engine and a transmission to eliminate vibration of a vehicle transmission system and improve the comfort of the whole vehicle. The dual-mass flywheel consists of a primary mass flywheel and a secondary mass flywheel, an annular oil cavity is formed between the primary mass flywheel and the secondary mass flywheel, a torsional vibration damper consisting of an arc spring is arranged in the annular oil cavity, and the primary mass flywheel and the secondary mass flywheel are connected into a whole.

The primary mass flywheel and the secondary mass flywheel are rotatable relative to each other. A primary mass flywheel is coupled to the engine for starting and transmitting engine speed and torque, and a secondary mass flywheel is coupled to the transmission for increasing rotational inertia of the transmission. The primary and secondary mass flywheels are typically positioned with bearings therebetween.

However, in the actual working state, because the primary mass flywheel is connected with the engine and the secondary mass flywheel is connected with the transmission, the primary mass flywheel and the secondary mass flywheel are well positioned, and a bearing between the primary mass flywheel and the secondary mass flywheel is a redundant part. Some dual mass flywheels eliminate bearings. Therefore, the primary mass flywheel and the secondary mass flywheel are not fixedly connected, and a large amount of freedom exists in the radial direction in the transportation and assembly processes, so that the product is damaged and the assembly is difficult in the transportation process.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a dual mass flywheel to solve the problem that exists among the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a dual mass flywheel, includes elementary mass flywheel, secondary mass flywheel, torsional vibration damper, elementary mass flywheel and supporting disk fixed connection, outer lane on the supporting disk is equipped with the location boss, secondary mass flywheel includes driver plate, spline hub, driver plate, spline hub riveting are in the same place, the inboard of spline hub is provided with the indent structure with location boss looks adaptation, the outside of indent structure is equipped with the driver plate, form annular oil pocket between elementary mass flywheel and the secondary mass flywheel, be equipped with the torsional vibration damper in the annular oil pocket, driver plate and secondary mass flywheel pass through the torsional vibration damper and couple into a whole.

Preferably, a balancing weight is arranged on the outer side of the spline hub, and the driving plate, the spline hub and the balancing weight are connected together.

Preferably, the concave structure on the spline hub is matched with the outer circle positioning boss on the supporting disk.

Preferably, the clearance between the positioning boss and the concave structure is less than 0.5 mm.

Preferably, the torsional vibration damper comprises a resilient element.

Preferably, the elastic element is one of an arc spring, a leaf spring, a rubber spring and an air spring.

The utility model discloses simple structure realizes easily, and is little to product overall structure influence, has reduced manufacturing cost simultaneously. The supporting disc is formed by punching, so that the precision is high and the cost is low; the excircle positioning boss is machined and formed, and the efficiency is high. The concave structure on the spline hub is matched with the excircle positioning boss on the supporting disk, so that a gap smaller than 0.5mm is ensured, relative movement between the primary mass flywheel and the secondary mass flywheel can be limited, relative fixation in a transportation process is ensured, and damage to parts is reduced.

Drawings

Fig. 1 is a schematic structural view of the present invention;

fig. 2 is an enlarged view of a portion a in fig. 1.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-2, a dual mass flywheel includes a primary mass flywheel 1, a secondary mass flywheel 2, and a torsional vibration damper 3, where the primary mass flywheel 1 is fixedly connected with a support plate 5, the support plate 5 is formed by stamping, and has high efficiency, high precision, and low cost, and a positioning boss 51 is disposed on an outer ring of the support plate 5. The secondary mass flywheel 2 comprises a driving plate 4, a spline hub 6 and a balancing weight 7, the driving plate 4 and the balancing weight 7 are riveted with the spline hub 6, an inner concave structure 61 matched with the positioning boss 51 is arranged on the inner side of the spline hub 6, the driving plate 4 is arranged on the outer side of the inner concave structure 61, and a driving handle of the driving plate 4 extends into the cavity and leans against the end part of the elastic element. One end of the elastic element is abutted to the end part of the dial 4, and the other end of the elastic element is limited by a boss on the primary mass flywheel 1. An annular oil cavity is formed between the primary mass flywheel 1 and the secondary mass flywheel 2, a torsional vibration damper 3 composed of arc springs is arranged in the annular oil cavity, and an elastic element of the torsional vibration damper 3 is one of the arc springs 8, leaf springs, rubber springs and air springs.

According to the working principle, the dual-mass flywheel comprises a primary mass flywheel 1 and a secondary mass flywheel 2, an annular oil cavity is formed between the primary mass flywheel 1 and the secondary mass flywheel 2, a torsional vibration damper 3 is arranged in the annular oil cavity, the torsional vibration damper 3 is one of an arc spring 8, a leaf spring, a rubber spring and an air spring, and the primary mass flywheel 1 and the secondary mass flywheel 2 are connected into a whole through the torsional vibration damper 3 and a driving plate 4. A supporting plate 5 is fixedly connected to the primary mass flywheel 1, an outer circle positioning boss 51 is arranged on the supporting plate 5, an inner concave structure 61 matched with the outer circle positioning boss on the supporting plate is arranged on the spline hub 6, the gap between the inner concave structure and the spline hub is guaranteed to be smaller than 0.5mm, relative movement between the primary mass flywheel 1 and the secondary mass flywheel 2 can be limited, relative fixation in the transportation process is guaranteed, and damage to parts is reduced.

It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention 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. The utility model provides a dual mass flywheel, includes elementary mass flywheel, secondary mass flywheel, torsional vibration damper, its characterized in that elementary mass flywheel and supporting disk fixed connection, the outer lane on the supporting disk is equipped with the location boss, secondary mass flywheel includes driver plate, spline hub, driver plate, spline hub riveting are in the same place, the inboard of spline hub is provided with the indent structure with location boss looks adaptation, the outside of indent structure is equipped with the driver plate, form annular oil pocket between elementary mass flywheel and the secondary mass flywheel, be equipped with the torsional vibration damper in the annular oil pocket, driver plate and secondary mass flywheel pass through the torsional vibration damper and couple into a whole.

2. A twin mass flywheel as defined in claim 1 in which a weight is located on the outside of said splined hub, said drive plate, splined hub and weight being connected together.

3. A twin mass flywheel as defined in claim 1 in which the indent on the splined hub is adapted to the outer cylindrical locating boss on the support disk.

4. A twin mass flywheel as defined in claim 1 in which the clearance between the locating boss and the recess is less than 0.5 mm.

5. A twin mass flywheel as defined in claim 1 in which the torsional vibration damper comprises a resilient element.

6. A twin mass flywheel as defined in claim 5 in which the resilient member is one of an arcuate spring, a leaf spring, a rubber spring, an air spring.