JPS5927548Y2 - Clutch with vibration damper - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a clutch with a vibration damper that is an improved clutch mechanism.

Clutch mechanisms that intermittent rotation from the drive unit usually have a natural frequency due to the influence of the elasticity of each component of the drive system of an automobile, etc., and they resonate at a specific rotation speed and not only generate noise but also It has the disadvantage of causing poor transmission due to vibration.

For this reason, in conventional clutch mechanisms for automobiles, etc., in order to eliminate these drawbacks, a 7-reaction damper device is added to increase the hysteresis characteristic in the rotational transmission direction and suppress the generation of vibration and noise. Since its hysteresis characteristic is linear, it has not been possible to completely eliminate the above-mentioned natural frequency.

The purpose of the present invention is to eliminate the above-mentioned drawbacks and provide a clutch without resonance.The present invention aims to eliminate the above-mentioned drawbacks and provide a clutch without resonance. The present invention provides a clutch with an attached clutch.

Hereinafter, one embodiment of the clutch with a vibration damper of the present invention will be described with reference to the drawings. The drawings show a clutch disc.

Reference numeral 1 denotes a disc-shaped damper base, with a spline 2 formed at the axial center position, the peripheral edge of the damper base 10 serving as an annular engagement portion 3, and a plurality of chevron-shaped unevenness 4, 4 extending radially on one side. ... is formed.

Further, 5 and 6 are the front boss portions 7 of the damper base 1, respectively.
and a damper case in which shaft holes 5a and 6a are rotatably inserted into the rear boss portion 8, and both damper cases 5 and 6
are joined together on the outside of the annular retaining portion 3 and fixed by bolts, nuts, rivets, etc. via the inner end of the annular cushioning plate 9 to form an annular damper chamber 10. Both damper cases 5 and , 6 base 5b,
6b is a wear-resistant annular sheet 1 made of Teflon resin, etc.
1, 11a, and are attached by retainer rings 13.degree. 13a which are fitted into the circumferential grooves 7a, 8a formed in the respective boss portions 7, 8 through washers 12.degree. 12a.

Reference numeral 14 denotes an annular backup plate which is rotatably fitted onto the ascending part 15 of the damper base 1, and the engaging part 14a facing the annular engaging part 3 has the unevenness 4 of the annular engaging part 3.
．． 15 radially extending mountain-shaped irregularities of the same number and height as 4...
．． 15... and is elastically mounted between the damper case 5 and the backup plate 14 via a flexible annular sheet 16 made of a wear-resistant synthetic resin such as Teflon resin. This allows the double concave dies 4 and 15 to fit together.

In the figure, 18 is a wear-resistant annular sheet made of Teflon resin or the like, and 19 and 19 are annular discs fixed to sandwich the cushioning plate 9 from both sides.

The clutch board with the above configuration has damper base 1 and disc 1.
9, and the rotation from a drive shaft (not shown) input to the spline 2 is shown in FIG.
This is transmitted by the engagement of the chevron-shaped radial unevenness 4 and 15 provided on the portion 14a.

However, when vibration occurs in the drive shaft, the backup plate 14 is pressed by the annular elastic member 17 toward the engagement portion 3 of the damper base 1, and the engagement portions 3 and 14a are provided with a wear-resistant flexible material. Because the annular sheet 16 is inserted, the eighth
As shown in the figure, the surfaces of the double-concave dies 4 and 15 begin to slide against each other, causing a deviation in the rotational direction.

This rotational angle deviation increases the elastic pressure of the annular elastic member 17 as the deviation angle increases, so the rotational torque also increases, but the annular elastic member 17 utilizes the elasticity of a solid such as rubber. Therefore, the internal resistance associated with elastic compression increases in a multiplier manner.

Therefore, the rotational torque with respect to the above-mentioned deviation angle increases in a multiplier manner, and a curved hysteresis characteristic is obtained.As a result, vibrations from the drive section are absorbed, and resonance at a specific rotation speed is also eliminated. It has a damping effect that completely absorbs vibrations and accompanying noise.

As explained above, the clutch of the present invention is equipped with a vibration damper that eliminates vibration and noise, but the torque of the damper mechanism A increases according to the rotational deviation angle, and the torsional rigidity becomes non-linear. Because it is a type, it is small at low torque and exhibits a large L/elastic constant at high torque, which allows the maximum permissible torque of the device to be increased, and the structure of the vibration damper is simple. The subsequent practical effects are extremely large.

[Brief explanation of drawings]

The drawings show an embodiment of the clutch with a vibration damper of the present invention, and Fig. 1 is a partially cutaway front view of the clutch disc;
Figure 2 is a sectional view taken along line B-B in Figure 1, Figure 3 is a front view of the damper base, Figure 4 is a right side view of the same, Figure 5 is a front view of the backup plate, and Figure 6 is the same. 7 is a sectional view taken along the line C--C, FIG. 7 is a developed sectional view taken along the line D--D in FIG. 1, and FIG. 8 shows the state when the same figure is shifted. 1... Damper base, 2... Spline, 3゜14a... Engaging portion 1.4, 15...
...Irregularities 5, 6... Damper case, 9...
... Cushioning plate, 10 ... Annular damper chamber, 11. Ila, 18... Annular sheet, 12, 12a... Washer, 13° 13
a... Retainer ring, 14... Backup plate, 16... Flexible annular sheet, 17... Annular resilient member, 19... ··disk.

Claims (1)

[Scope of utility model registration request] An annular backup plate having a radial surface facing the annular engaging portion on one side for a damper substrate formed with a spline at the axis of an annular engaging portion consisting of a plurality of radial surfaces that are uneven in the axial direction. is rotatably inserted and the annular retaining parts are brought into contact with each other, and a disk is fixed on the outer periphery, and an annular elastic member is placed between the damper case, which is rotatably pivoted to the damper base, and the backup plate. Loaded with ammunition,
A clutch with a vibration damper in which the backup plate is elastically pressed against the annular engagement portion of the damper base.