JPH04107341A - Tortional damper - Google Patents

Abstract

PURPOSE:To improve productivity and to unify the thicknesses of inertia masses to a given value by locating a spacer to set a clearance between the opposite surfaces of the outer peripheries of a pair of inertial masses and securely nipping the outer peripheries of a pair of the inertial masses by means of a caulking ring. CONSTITUTION:Inertia masses 2 are positioned facing each other with a gap 4 therebetween and a friction plate 1 is inserted in the gap 4. A spacer 3 to set a clearance 1 is located between the opposite surfaces of the outer peripheries of a pair of the inertia masses 2, and the outer peripheral surfaces of a pair of inertia masses 2 are securely nipped by means of a caulking ring 5. Thus, a clearance between the inertial mass 2 and the friction plate 1 is properly set and managed according to the thickness of the spacer 3 located between the opposite surfaces of the outer peripheries of the inertia masses 2. This constitution simply and rapidly sets the clearance through location of the spacer 3, unifies the thicknesses of a pair of the inertial masses 2 to a value equal to each other, and improves productivity.

Description

DETAILED DESCRIPTION OF THE INVENTION <Industrial Application Field> The present invention relates to a torsional taper that damps rotational vibrations.

<Prior Art> Torsion tampers are used to damp rotational vibrations of engines, etc. As shown in FIG. 2, a conventional torsional tamper is constructed by bonding a pair of inertial masses 2 to a rotating plate 10 mounted on a rotating shaft with a rubber 11 with a gap 4 between them. Insert the friction plate 1 fixed to the gap 4 into the gap 4,
A viscous rubber tamper in which a viscous fluid such as silicone oil is sealed in the gap 4 is known.

<Problems to be Solved by the Invention> In the above-mentioned viscous rubber tamper, the damping effect of the viscous damper is greatly influenced by the clearance between the friction plate 1 and the inertial mass 2, and the adjustment setting of this clearance is important. Conventionally, this clearance has been adjusted by cutting a step 12 on the opposing surface of one outer periphery of the inertial mass 2 to set the clearance, as shown in Fig. It was fitted onto the outer peripheral surface of 2. Therefore, processing work by cutting is required, resulting in poor productivity, and there is also the problem that the inertial mass on the side to be cut needs to be thick with a cutting allowance in advance.

An object of the present invention is to provide a viscous torsional tamper that solves the above problems.

Means for Solving the Problems> The gist of the present invention to achieve the above object is to provide a spacer for setting a clearance on the opposing surfaces of the outer peripheries of a pair of inertial masses. are clamped and fixed with caulking links.

Function> With the above configuration, the clearance can be easily and quickly set by interposing the spacer, and the pair of inertial masses are unified to have the same wall thickness, thereby increasing productivity and economy.

<Example> Hereinafter, an example of the present invention will be described based on the drawings. In FIG. 1, ▪ is a friction plate, and 2 is an inertial mass, which face each other with a gap 4 between them, and the friction plate 2 is inserted into this gap 4. 3 is a spacer interposed on the opposing surface of the outer periphery of the inertial mass 2, and 5 is a caulking ring that clamps and fixes the outer periphery of the inertial mass 2.

6 indicates a 0 ring.

Since the present invention has the above-described structure, the clearance between the inertial mass 2 and the friction plate 1 can be appropriately set and managed by the thickness of the spacer 3 interposed on the opposing surface of the outer periphery of the inertial mass 2.

Note that the spacer 3 does not have to be ring-shaped and continuous around the entire circumference.

<Effects of the Invention> As described above, the present invention includes a pair of inertial masses facing each other with a gap, and a predetermined critical tamper in the gap, and the above-mentioned The structure is such that the outer circumferential surfaces of a pair of inertial masses are clamped and fixed by a crimping ring with a spacer interposed between them to set the clearance, so the relationship between the inertial masses and the friction plate, which is an important element of this type of torsional tamper, is Clearances can be easily and appropriately set and managed, eliminating the need for machining work by cutting as in the past, improving productivity, and reducing costs by standardizing the inertia mass to the required thickness without the need for cutting allowances. is obtained.

[Brief explanation of drawings]

Fig. 1 is a sectional view of the main part of the present invention, and Fig. 2 is a sectional view of the conventional structure.6 1...Friction plate, 2...Inertia mass, 3
... Spacer, 4... Gap, 5... Caulking ring.

Claims (1)

[Claims] In a torsional damper comprising a pair of inertial masses facing each other with a gap, a friction plate inserted into the gap with a predetermined clearance, and a viscous fluid sealed in the gap, the pair of inertial masses A torsional damper characterized in that a spacer for setting the clearance is interposed on opposing surfaces of the outer peripheries of the pair of inertial masses, and the outer periphery surfaces of the pair of inertial masses are clamped and fixed by caulking rings.