JPH0724683Y2 - damper - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial application] The present invention relates to an improvement in a damper that absorbs and damps vibrations generated in various rotary drive systems such as a propeller shaft of an automobile engine.

[Conventional technology]

Conventionally, as an example of this type of damper, as shown in FIG. 4 and FIG. 5, there is a ring-shaped hub 1 attached to a propeller shaft of an automobile engine, and the hub 1 also has a ring-shaped hub. The mass dampers (2, vibrating rings) are concentrically spaced apart from each other, and the dynamic damper (also referred to as Tillger or dynamic vibration reducer) having the spring member 3 and the stopper 4 between the hub 1 and the mass body 2 is provided. Are known. The hub 1 and the mass body 2 are respectively formed of a predetermined metal, and the spring member 3 and the stopper 4 are formed of a predetermined rubber of the same kind,
The spring member 3 is vulcanized and bonded to both the spring 1 and the mass body 2 and the stopper 4 is vulcanized and bonded simultaneously to the hub 1 respectively. A plurality of spring members 3 and stoppers 4 are provided in the circumferential direction and are alternately arranged.

[Problems to be solved by the device]

The damper configured as described above constitutes a kind of resonance system with respect to the propeller shaft and absorbs vibration generated in the shaft. Has a problem of causing a large eccentricity with respect to the hub 1, that is, the center of rotation, and generating new vibration. The damper is provided with a stopper 4 so as to suppress this eccentricity.
Since the spring member 3 and the stopper 4 are simultaneously molded by combining the above, it is not possible to set the gap a between the mass body 2 and the stopper 4 to be small (an actual gap of 1 mm or more is required).
There is a problem that the eccentricity cannot sufficiently function.

The present invention has been made in view of the above points, and an object thereof is to provide a damper devised so as to efficiently suppress the eccentricity of the mass body.

[Means for Solving the Problems]

To achieve the above object, the damper according to the first aspect of the present invention comprises a metal hub having an annular shape, an annular metal mass body concentrically arranged with respect to the hub, and A spring member made of a rubber-like elastic material, which is arranged between the hub and the mass body and adhered to both the hub and the mass body, and arranged between the hub and the mass body in parallel with the spring member. A rubber-like elastic member fitted to one of the hub and the mass body via a metal sleeve and having a radial gap of a predetermined size between the hub and the mass body I decided to have a stopper made of.

A damper according to the second aspect of the present invention is a metal hub having an annular shape, a metal mass having an annular shape concentrically arranged with respect to the hub, and the hub and the mass body. A spring member made of a rubber-like elastic material, which is arranged between the hub and the mass body, and which is bonded to the hub and fitted to the mass body via a metal sleeve. And a stopper made of a rubber-like elastic material, which is bonded to one of the hub and the mass body and has a radial gap of a predetermined size set between the hub and the other of the mass body, I decided to prepare.

A damper according to the third aspect of the present invention is a metal hub having an annular shape, a metal mass having an annular shape concentrically spaced from the hub, and the hub and the mass body. A spring member made of a rubber-like elastic material, which is arranged between the hub and the mass body, and which is bonded to the hub and fitted to the mass body via a metal sleeve. A rubber having a radial gap of a predetermined size set between the hub and the mass body through a metal sleeve and fitted to one of the hub and the mass body. And a stopper made of elastic material.

A damper according to a fourth aspect of the present invention is a metal hub having an annular shape, a metal mass having an annular shape concentrically arranged with respect to the hub, and the hub and the mass body. A spring member made of a rubber-like elastic material, which is disposed between the mass member and the mass member, and is fitted to the hub through a metal sleeve, and the spring member is arranged between the hub and the mass member. And a stopper made of a rubber-like elastic material, which is bonded to one of the hub and the mass body and has a radial gap of a predetermined size set between the hub and the other of the mass body, I decided to prepare.

A damper according to a fifth aspect of the present invention is a metal hub having an annular shape, a metal mass having an annular shape concentrically arranged with respect to the hub, and the hub and the mass body. A spring member made of a rubber-like elastic material, which is disposed between the mass member and the mass member, and is fitted to the hub through a metal sleeve, and the spring member is arranged between the hub and the mass member. A rubber having a radial gap of a predetermined size set between the hub and the mass body through a metal sleeve and fitted to one of the hub and the mass body. And a stopper made of elastic material.

A damper according to the sixth aspect of the present invention is a metal hub having an annular shape, an annular metal mass body concentrically arranged with respect to the hub, and a hub and the mass body. A spring member made of a rubber-like elastic material, which is disposed between the hub and the mass body and is fitted to both the hub and the mass body through a sleeve made of metal, and the spring member is arranged between the hub and the mass body. And a stopper made of a rubber-like elastic material, which is bonded to one of the hub and the mass body and has a radial gap of a predetermined size set between the hub and the other of the mass body, I decided to prepare.

A damper according to a seventh aspect of the present invention is a metal hub having an annular shape, a metal mass having an annular shape concentrically arranged with respect to the hub, and the hub and the mass body. A spring member made of a rubber-like elastic material, which is disposed between the hub and the mass body and is fitted to both the hub and the mass body through a sleeve made of metal, and the spring member is arranged between the hub and the mass body. A rubber having a radial gap of a predetermined size set between the hub and the mass body through a metal sleeve and fitted to one of the hub and the mass body. And a stopper made of elastic material.

[Action]

In the above-mentioned prior art, the gap a between the mass body 2 and the stopper 4 could not be set small because the vulcanization mold is located at the place where the gap a is located due to the structure of the blockage or the structure. This is because a part of the above is disposed and a certain thickness is set in the part in order to secure the strength of the part. On the other hand, in the damper according to each claim of the present invention, the connection relationship of each component is finely divided into adhesion (vulcanization adhesion) and fitting, and a part of the vulcanization mold is provided at the position of the gap a. The structure is such that it is not inserted, and thereby the gap a can be set to be substantially small.

〔Example〕

 Next, the damper of the present invention will be described with reference to the drawings.

FIGS. 1A to 1G are schematic cross-sectional views of the damper in order to clarify the connection relationship between the respective parts of the damper. Common to all of A to G, the spring member 3 made of a rubber-like elastic material is used. And the stopper 4 are arranged side by side in the axial direction, and the sleeves 5, 6, 7
Is molded into an annular shape and press-fitted onto the hub 1 or the mass body 2.

(FIG. 1A) The spring member 3 is vulcanized and adhered to both the hub 1 and the mass body 2,
The stopper 4 is fitted to the hub 1 via the sleeve 5. That is, this type of damper separately molds a first vulcanization molded product composed of the hub 1, the spring member 3 and the mass body 2 and a second vulcanization molded product composed of the stopper 4 and the sleeve 5. It's a combination after all. The stopper 4 may be fitted to the mass body 2 via a sleeve.

(B in the figure) The spring member 3 is vulcanized and adhered to the hub 1, and is fitted to the mass body 2 via the sleeve 6, and the stopper 4 is vulcanized and adhered to the hub 1. That is, this type of damper is obtained by molding a vulcanized molded product including four parts 1, 3, 4, 6 excluding the mass body 2 and then combining the molded product and the mass body 2. The stopper 4 may be vulcanized and bonded to the mass body 2.

(C in the same figure) The spring member 3 is vulcanized and bonded to the hub 1, and is fitted to the mass body 2 via the sleeve 6, and the stopper 4 is fitted to the hub 1 via the sleeve 5. That is, this type of damper includes a hub 1, a spring member 3 and a sleeve 6.
The first vulcanized molded product made of the above and the second vulcanized molded product made of the stopper 4 and the sleeve 5 are separately molded, and then both the molded products and the mass body 2 are combined. The stopper 4 may be fitted to the mass body 2 via a sleeve.

(D in the figure) The spring member 3 is vulcanized and adhered to the mass body 2 and is fitted to the hub 1 through the sleeve 7, and the stopper 4 is vulcanized and adhered to the hub 1. That is, this type of damper separately molds a first vulcanized molded product composed of the hub 1 and the stopper 4 and a second vulcanized molded product composed of the mass body 2, the spring member 3 and the sleeve 7. It's a combination after all. The stopper 4 may be vulcanized and bonded to the mass body 2.

(E in the same figure) The spring member 3 is vulcanized and bonded to the mass body 2 and is fitted to the hub 1 via the sleeve 7, and the stopper 4 is fitted to the hub 1 via the sleeve 5. That is, in this type of damper, after the first vulcanization molded product composed of the mass body 2, the spring member 3 and the sleeve 7 and the second vulcanization molded product composed of the stopper 4 and the sleeve 5 are molded separately, It is a combination of both the molded products and the hub 1. One sleeve 5 or 7 may be shared. Further, the stopper 4 may be fitted to the mass body 2 via a sleeve.

(F in the figure) The spring member 3 is fitted to the hub 1 and the mass body 2 via the sleeves 6 and 7, respectively, and the stopper 4 is vulcanized and bonded to the hub 1. That is, the damper of this type includes the first vulcanization molded product including the hub 1 and the stopper 4, and the spring member 3.
And a second vulcanization molded product composed of two sleeves 6 and 7 is molded separately from each other, and then both molded products and the mass body 2 are combined. The stopper 4 may be vulcanized and bonded to the mass body 2. FIG. 2 shows a detailed cross section of this type of damper.

(G in the figure) The spring member 3 is fitted to the hub 1 and the mass body 2 via the sleeves 6 and 7, respectively, and the stopper 4 is fitted to the hub 1 via the sleeve 5. That is, this type of damper includes a first spring member 3 and two sleeves 6 and 7.
And the second vulcanized molded article composed of the stopper 4 and the sleeve 5 are separately molded, and then both the molded article, the hub 1 and the mass body 2 are combined. The sleeves 5 and 7 fitted to the hub 1 may be one sleeve in common.
FIG. 3 shows a detailed cross section of this type of damper.
Further, the stopper 4 may be fitted to the mass body 2 via a sleeve.

Each of the dampers A to G has a structure in which a part of the vulcanization mold is not inserted at the position of the gap a during molding, and the gap a can be set to be substantially small. The stopper function can be enhanced. Further, since the spring member and the stopper are separately vulcanized and molded, it is possible to select and use a rubber suitable for each function.

[Effect of device]

As described above, according to the present invention, the stopper function can be enhanced by narrowing the gap between the stopper and the mating member, and accordingly, the eccentricity of the mass body can be efficiently suppressed.

[Brief description of drawings]

1A to 1G are schematic sectional views of a damper according to the present invention, FIGS. 2 and 3 are detailed sectional views of the damper according to the present invention, and FIG. 4 is a half-cut front view of a damper according to a conventional example. 5 is a sectional view taken along the line HOH in FIG. 1 hub, 2 mass bodies, 3 spring members 4 stoppers, 5, 6, 7 sleeves a gap

Claims (7)

[Scope of utility model registration request] 1. A metal hub (1) having an annular shape, an annular metal mass body (2) concentrically arranged with respect to the hub (1), and the hub (1). And a spring member (3) made of a rubber-like elastic material, which is disposed between the mass body (2) and adhered to both the hub (1) and the mass body (2), and the hub (1) and Is arranged between the mass bodies (2) alongside the spring member (3), and is fitted to one of the hub (1) and the mass body (2) through a metal sleeve (5), A damper provided with a stopper (4) made of a rubber-like elastic material in which a radial gap (a) of a predetermined size is set between the hub (1) and the other of the mass body (2). . 2. A metal hub (1) having an annular shape, a metal mass body (2) having an annular shape which is arranged concentrically with respect to the hub (1), and the hub (1). And the mass body (2), which is arranged between the mass body (2) and is bonded to the hub (1), and which is provided with a metal sleeve (6).
The spring member (3) made of a rubber-like elastic material, which is fitted to the hub, and the spring member (3) are arranged between the hub (1) and the mass body (2). And rubber-like elasticity adhered to one of the mass bodies (2) and having a radial gap (a) of a predetermined size between the hub (1) and the other of the mass bodies (2). A damper provided with a stopper (4) made of material. 3. A metal hub (1) having an annular shape, an annular metal mass body (2) concentrically arranged with respect to the hub (1), and the hub (1). And the mass body (2), which is arranged between the mass body (2) and is bonded to the hub (1), and which is provided with a metal sleeve (6).
A spring member (3) made of a rubber-like elastic material fitted on the spring member (3) and arranged between the hub (1) and the mass body (2) side by side with the spring member (3), and a metal sleeve ( 5) is fitted to one of the hub (1) and the mass body (2) through the other side of the hub (1) and the mass body (2) in a radial direction of a predetermined size. A damper provided with a stopper (4) made of a rubber-like elastic material in which a gap (a) is set. 4. A metal hub (1) having an annular shape, an annular metal mass body (2) concentrically arranged with respect to the hub (1), and the hub (1). And the hub (1) disposed between the mass body (2) and bonded to the mass body (2) via a metal sleeve (7).
The spring member (3) made of a rubber-like elastic material, which is fitted to the hub, and the spring member (3) are arranged between the hub (1) and the mass body (2). And rubber-like elasticity adhered to one of the mass bodies (2) and having a radial gap (a) of a predetermined size between the hub (1) and the other of the mass bodies (2). A damper provided with a stopper (4) made of material. 5. A metal hub (1) having an annular shape, an annular metal mass body (2) concentrically arranged with respect to the hub (1), and the hub (1). And the hub (1) disposed between the mass body (2) and bonded to the mass body (2) via a metal sleeve (7).
A spring member (3) made of a rubber-like elastic material fitted on the spring member (3) and arranged between the hub (1) and the mass body (2) side by side with the spring member (3), and a metal sleeve ( 5) is fitted to one of the hub (1) and the mass body (2) through the other side of the hub (1) and the mass body (2) in a radial direction of a predetermined size. A damper provided with a stopper (4) made of a rubber-like elastic material in which a gap (a) is set. 6. A hub (1) made of a metal having an annular shape, a mass body (2) made of a metal having an annular shape which is arranged concentrically with respect to the hub (1), and the hub (1). And a rubber-like elastic material which is disposed between the mass body (2) and fitted to both the hub (1) and the mass body (2) through metal sleeves (7) and (6), respectively. Made of a spring member (3) and the hub (1) and the mass body (2) are arranged side by side with the spring member (3), and one of the hub (1) and the mass body (2) is disposed. A stopper (4) made of a rubber-like elastic material, which is bonded to the hub (1) and has a radial gap (a) of a predetermined size set between the hub (1) and the other of the mass bodies (2), Damper equipped with. 7. A hub (1) made of metal having an annular shape, a metal mass (2) having an annular shape arranged concentrically with respect to the hub (1), and the hub (1). And a rubber-like elastic material which is disposed between the mass body (2) and fitted to both the hub (1) and the mass body (2) through metal sleeves (7) and (6), respectively. A spring member (3) made of metal, and arranged between the hub (1) and the mass body (2) side by side with the spring member (3), and the hub (1) via a metal sleeve (5). ) And one of the mass bodies (2), and a radial gap (a) of a predetermined size is set between the other of the hub (1) and the mass body (2). Elastic material stopper (4)
And a damper equipped with.