KR101555784B1

KR101555784B1 - The overrunning alternator pulley for automobile efficiency damping means

Info

Publication number: KR101555784B1
Application number: KR1020140072549A
Authority: KR
Inventors: 주숙희
Original assignee: 주숙희
Priority date: 2014-06-16
Filing date: 2014-06-16
Publication date: 2015-09-24
Also published as: WO2015194803A1

Abstract

The present invention relates to a new damper means which can act more positively in minimizing twisting vibration, impact, load, noise, etc. during a driving operation of an overrunning pulley for an automotive alternator.
That is, a belt 20 that draws the power of an automotive internal combustion engine, a pulley 30 that receives rotation by the belt 20, and a rotor drive And a drive shaft (12) that is mounted between the pulley (30) and the rotor driving shaft (12) to transmit power by engaging during acceleration among irregular powers applied to the pulley (30) (A) of a conventional automotive alternator (alternator) in which an over running clutch 110 in which idling proportional to the idle running clutch 110 is performed is built in the over running clutch 110 itself, (Twisting vibration, shock, load, stress, fatigue accumulation, noise, etc.) caused by irregular power and inertia applied to the pulley 30 can be coped with with more flexible and high elasticity, In addition to the installation hayeoseo excellent engaging the ring-shaped damper device 200 to a new one.

Description

[0001] The present invention relates to an overrunning pulley for an automotive alternator,

The present invention relates to a new damper means which can more positively act on the minimization of twisting vibration, impact, load, noise and the like during driving operation of an overrunning pulley for an automotive alternator.

The operation of the alternator (alternator) and the rotor (driven side), which are usually provided in the vehicle, is driven by receiving the rotational power (driven side) output from the automotive internal combustion engine from the driving operation of the belt and the overrunning pulley.
On the other hand, the rotation (rotation on the driving side) output from the internal combustion engine to the alternator via the belt is a periodic interval at which the cycle changes due to a difference in power between the explosion of the engine and the non-explosion (suction, compression, An irregular phenomenon (accelerating and temporarily slowing down) which repeats acceleration and deceleration appears.
The overrunning pulley of the alternator, the rotor shaft and the rotor (weight of the rotating body), which receives the power output from the automotive internal combustion engine and is rotated by the belt, is temporarily decelerated or powered off in the course of high- And has an inertia moment which is constantly idling by the drag force.
Therefore, when the rotor of the alternator, which is the driven side, is driven normally by the power output from the drive side (vehicle internal combustion engine) (acceleration at the drive side) between the overlaying pulley and the rotor shaft, On the other hand, when the rotation of the rotor, which is the driven side, is faster than the drive side (overrun due to the inertia moment of the driven side given when decelerating the drive side), free rotation Way clutch that allows idle rotation of the engine.
However, since the overrunning pulley in which the one-way clutch is built is ineffectively synchronized with the rotation irregularity of the crankshaft of the internal combustion engine and the inertia of the alternator, the load of the belt drive, the motion of the tension adjusting device, It offers various functions and effects such as increased life span, improved noise behavior of the belt drive, increased alternator speed in the idling speed range, belt slip and noise reduction in the alternator drive wheel during gear shifting.
However, when an overrunning pulley, an inertia moment of the rotor driving shaft and a rotor (weight rotating body) together act inevitably accompanied by an irregular phenomenon in which the power output from the automobile engine suddenly accelerates or decelerates repeatedly There is only a basic operation in which a slight slip is caused with respect to a momentary shock or a torsional vibration, a load, a stress, a fatigue, a noise, etc.,

There is no special means, so it is inevitably subject to considerable remaining defects. Such a problem is limited to the improvement of the quality, function and performance of the overrunning pulley and alternator with built-in one-way clutch An urgent solution is required.

delete

The present invention was conceived to eliminate the above-mentioned problems, and it is an object of the present invention to provide a method and apparatus for detecting defects (warping vibration, shock, load, stress, fatigue) caused by irregular rotation (acceleration or deceleration repetition) Accumulation, noise, etc.), as well as being capable of contributing to cost reduction and productivity enhancement, as well as being excellent in manufacturing and installation assemblability. In particular, Efficiency damping means for an overrunning pulley for an automotive alternator, which is more advantageous in terms of quality stability and addedness as a result of being integrated in a simple integrated manner in the way clutch itself.

According to an aspect of the present invention, there is provided a drive system (A) for an ordinary automotive alternator including an overrunning pulley (30) having a one-way clutch unit (220) While the hub 210 of the one-way clutch unit 220 is splined to the outer ring member 220a of the one-way clutch unit 220, the inner diameter of the overrunning pulley 30 and the fine gap are maintained ; &Lt; / RTI > One or both sides of the one-way clutch unit 220 are coupled to the hub 210 by bearings and idly rotated. On the other hand, the inner running of the overrunning pulley 30 is a power coupling The flange 240 is coupled; (The load appearing when the belt and the pulley are accelerated) or the reverse load (the rotor when the pulley is decelerated) can be transmitted between the one-way clutch unit 220 and the power connection flange 240, Type damper member 230 for elastically absorbing and attenuating the load caused by inertia.

The high-efficiency damping means of the overrunning pulley for an automotive alternator of the present invention is designed as a damper ring damper device 200 capable of being assembled and assembled in the overrunning pulley 30 and having excellent manufacturing and assembling performance as described above (Torsional vibration, shock, load, stress, fatigue accumulation, noise, etc.) due to irregular power and inertia applied to the overrunning pulley 30 from the engine It is a very useful invention to cope flexibly and resiliently so that perfect damping function can be given.

1 is a perspective view showing a preferred embodiment of the present invention.
Figure 2 is a diagram of a preferred disassembly assembly of the present invention
3 is an exploded assembly state diagram of the overrunning pulley of the present invention
Figure 4 is a plan view of the disassembly assembly of the overrunning pulley of the present invention
5 is an exploded view of a power connecting flange according to the present invention

The high-efficiency damping means of the overrunning pulley for an automotive alternator according to the present invention will be described in more detail with reference to the accompanying drawings.
That is, the present invention relates to a motorcycle comprising: a belt (20) for drawing power of an automotive internal combustion engine; Way clutch unit 220 that is capable of transmitting power by the operation of the clutch during acceleration of the irregular power applied by the belt 20 but idling in proportion to the inertia at the time of deceleration so that the one- A running pulley 30; A driving system for a normal automotive alternator including a shaft for driving a rotor 11 for driving a weighted rotor 11 in accordance with the operation of the overrunning pulley 30 and the one- A)
The hub ring 210 of the one-way clutch unit 220 is fastened to the rotor driving shaft 12 while the outer ring ring member 220a of the one-way clutch unit 220 is fastened to the inner ring of the overrunning pulley 30 And a state in which a minute gap is maintained;
One or both sides of the one-way clutch unit 220 are coupled to the hub 210 by bearings and idly rotated. On the other hand, the inner running of the overrunning pulley 30 is a power coupling The flange 240 is coupled;
(The load appearing when the belt and the pulley are accelerated) or the reverse load (the rotor when the pulley is decelerated) can be transmitted between the one-way clutch unit 220 and the power connection flange 240, A dam ring member 230 for elastically absorbing and attenuating the load caused by inertia) is installed;
An engaging groove 221 and an engaging step 222 are alternately formed on the one side or both sides of the outer ring member 220a formed in the one-way clutch unit 220 at a predetermined interval;
The damper-side damper member 230 includes a damper-side engaging groove 231 and an engaging jaw 232 which are angularly engageable with the clutch-side engaging groove 221 and the engaging jaw 222 in an alternating manner.
A damper side engagement groove 231 of the engagement ring type damper member 230 and a flange side engagement groove 241 which engages with the engagement protrusion 232 in mutually male and female are formed on one side of the power connection flange 240, 242) alternating with a negative, embossed;
And a damper ring-type damper device (200) including a damper ring-type damper device (200).
When the damper ring device 200 is installed, it is possible to prevent the occurrence of defects (such as torsional vibration, shock, load, stress, fatigue accumulation, noise) caused by irregular power and inertia applied to the overrunning pulley 30 Absorbing and attenuating, so that it can be more flexibly coped with, as well as being excellent in manufacturing and assembling, so that the convenience of installation can be provided.
On the respective sides of the damper side engagement groove 231 and the engagement protrusion 232 formed on one side or both sides of the engagement ring type damper member 230,
It is possible to constitute the concavo-convex portion 233 in which the cutout groove 233a of the one-way clutch unit 220 is suitably arranged as a means for easily securing the material avoiding space required in the elastic damping operation,
The cutout grooves 233a of the concave and convex portions 233 can be configured to be large or small depending on the situation for a desired degree of damper function,
The shape and number of the cutout groove 223a can be variously selected depending on the situation.
Each side of the damper side engagement groove 231 formed on one side or both sides of the engagement ring type damper member 230 and the engagement step 232 is formed at an inclination angle of a constant slope as shown in the figure,
It is possible to make it possible to provide more flexible and stable engagement with the power connection by the damping function after the mutual engagement is achieved,
It is also sufficient that the power transmission by mutual engagement is sufficient, so that it may be configured to be engaged at a right angle without giving an inclination angle.
As described above, the damming member 230 can be variously modified by various synthetic resin materials, which are advantageously used for integrated injection molding, while resiliently absorbing and extinction of a certain impact or momentary load. However,
It is more preferable to select a rubber material more effective for increasing function and quality due to flexibility given to the synthetic resin and durability (absorption and dying) against the load.
With such a configuration, when the rotational power of the acceleration output from the internal combustion engine transmitted by the overrunning pulley 30 is connected to the one-way clutch unit 220 to drive the rotor,
Or when the load is applied to the overrunning pulley 30 side in the one-way clutch unit 220 due to inertia due to deceleration during irregular operation of the engine, a very effective new damper member 230 Since the damping function can be exercised,
An effective damping function for minimizing and absorbing and extinguishing defects (torsional vibration, shock, load, stress, fatigue accumulation, noise, etc.) caused by irregular power and inertia applied to the overrunning pulley 30 from the engine,
In the overrunning pulley 30 for one automobile alternator, and at the same time, by the engagement ring-type damper member 230 of a rubber material of a particularly flexible elasticity,
Since the damper function is performed, not only can it greatly contribute to the damping effect and function increase,
The overlapping pulley 30 for the alternator is assembled by mutual engagement and occupies a very small space. Therefore, the spatial loss and the cost burden to be added due to the installation of the rubber damper function can be greatly reduced,
In the manufacture of the damper ring 230, the damper member 230 can be mass-produced rapidly by integrated injection molding, which is very useful for improving the productivity.

delete

11: rotor 12: shaft for driving rotor
20: belt 30: overrunning pulley
200: damming ring damper device 210: hub
220: One-way clutch unit 230: Retaining ring type damper member
231: Retaining groove 232: Retaining jaw
240: Flange for power connection

Claims

A belt (20) for drawing power of an automotive internal combustion engine; Way clutch unit 220 that is capable of transmitting power by the operation of the clutch during acceleration of the irregular power applied by the belt 20 but idling in proportion to the inertia at the time of deceleration so that the one- A running pulley 30; A driving system for a normal automotive alternator including a shaft for driving a rotor 11 for driving a weighted rotor 11 in accordance with the operation of the overrunning pulley 30 and the one- A)

The hub ring 210 of the one-way clutch unit 220 is fastened to the rotor driving shaft 12 while the outer ring ring member 220a of the one-way clutch unit 220 is fastened to the inner ring of the overrunning pulley 30 And a state in which a minute gap is maintained;
One or both sides of the one-way clutch unit 220 are coupled to the hub 210 by bearings and idly rotated. On the other hand, the inner running of the overrunning pulley 30 is a power coupling The flange 240 is coupled;
(The load appearing when the belt and the pulley are accelerated) or the reverse load (the rotor when the pulley is decelerated) can be transmitted between the one-way clutch unit 220 and the power connection flange 240, A dam ring member 230 for elastically absorbing and attenuating the load caused by inertia) is installed;
An engaging groove 221 and an engaging step 222 are alternately formed on the one side or both sides of the outer ring member 220a formed in the one-way clutch unit 220 at a predetermined interval;
The damper-side damper member 230 includes a damper-side engaging groove 231 and an engaging jaw 232 which are angularly engageable with the clutch-side engaging groove 221 and the engaging jaw 222 in an alternating manner.
A damper side engagement groove 231 of the engagement ring type damper member 230 and a flange side engagement groove 241 which engages with the engagement protrusion 232 in mutually male and female are formed on one side of the power connection flange 240, 242) alternating with a negative, embossed;
And a damper ring-type damper device (200) including a damper ring-type damper device (200).

The method according to claim 1,
At the sides of the damper side engagement groove 231 and the engagement protrusion 232 formed on one side or both sides of the engagement ring type damper member 230,
The uneven portion 233 including the one-way clutch unit 220 opening clearance groove 233a of a predetermined size can be further configured to secure a space for avoiding the material required in the elastic damping operation Of the overrunning pulley for an automotive alternator.

delete