摘要:
A cylindrical dynamic damper including: a cylindrical mass member disposed about a rotating shaft and coaxially therewith; and a pair of elastic support members having a pair of ring-shaped affixing members situated at axial ends of the mass member and mounted on an outside peripheral face of the rotating shaft and a pair of elastic support portions of cylindrical shape connecting respectively to the affixing members and to the axial ends of the mass member to thereby elastically support the mass member. The mass member has on inside peripheral corners of both axial ends slanted faces disposed in chamfered profile and varying in shape in the circumferential-direction; and the elastic support portions connected at one ends to the slanted faces have free length varying in the circumferential direction.
摘要:
A dynamic damper including: a cylindrical metallic mass; a cylindrical fixing member with an inner diameter smaller than that of the metallic mass member; a connecting member connecting the metallic mass member with respect to the fixing member; and a covering member integrally formed with the cylindrical fixing member and the connecting member, and covering the mass member. A plurality of engaging recesses are formed at axial end portions of the mass member to be open in an outer circumferential surface thereof, and a plurality of engaging projections integrally formed with the covering member are held in stable engagement with the engaging recesses, respectively.
摘要:
A dynamic damper including a rubber elastic body interposed between and connecting an inner sleeve mounted at one end on a flat attachment surface of an object member and a cylindrical mass member disposed coaxially about the inner sleeve with a spacing therebetween, and an annular flange extending radially outwardly from the one end of the inner sleeve. When the dynamic damper is mounted on the attachment surface, an outer rim of the one end of the inner sleeve is surrounded by an outer rim of an area of the attachment surface where is superimposed with the flange.
摘要:
A dynamic damper mounted on a rod-shaped oscillating member is disclosed which includes: a cylindrical metallic mass member formed of sintered metal or forging and disposed radially outwardly of the oscillating member; two elastic support members formed on axially opposite sides of the metallic mass member to elastically support the metallic mass member; and an elastic covering layer integrally formed with the elastic support member and fixed in close contact with the substantially entire area of the surface of the metallic mass member. The metallic mass member has bevels in the form of tapered cylindrical surfaces formed at radially inner edges of axially opposite end faces of said metallic mass member, respectively. Each of the bevels extends over a corresponding one of the axially opposite end faces and an inner circumferential surface of the metallic mass member to thereby chamfer the corresponding one of the radially inner edges. The pair of elastic support members are fixed at large diameter end portions thereof to the bevels, respectively.
摘要:
A cylindrical dynamic damper including: a cylindrical fastening member of elastic body to be fitted onto a rod shaped vibrating member; a mass member of tubular shape disposed about the cylindrical fastening member in a concentric fashion; a plurality of elastic connecting members disposed between the cylindrical fastening member and the mass member to extend in an axis-perpendicular direction; and a plurality of thin elastic film members disposed between and integrally formed with circumferentially adjacent ones of the elastic connecting members. The cylindrical fastening member and the mass member is elastically connected together via the elastic connecting members and the elastic film members. Each of the elastic film members is inclined to one axial side, and at least one of the elastic film members is inclined to an opposite axial side in comparison with the other elastic film members.
摘要:
A cylindrical dynamic damper including: a cylindrical mass member disposed about a rotating shaft and coaxially therewith; and a pair of elastic support members having a pair of ring-shaped affixing members situated at axial ends of the mass member and mounted on an outside peripheral face of the rotating shaft and a pair of elastic support portions of cylindrical shape connecting respectively to the affixing members and to the axial ends of the mass member to thereby elastically support the mass member. The mass member has on inside peripheral corners of both axial ends slanted faces disposed in chamfered profile and varying in shape in the circumferential direction; and the elastic support portions connected at one ends to the slanted faces have free length varying in the circumferential direction.
摘要:
A structure for mounting a dynamic damper on a rotary shaft is disclosed. The dynamic damper comprises a mass member having a center of gravity at a position deviated from the axial center thereof toward a first end of axially opposite ends, and a first and second elastic support members which elastically support the mass member and allow the mass member to be relatively displaced. The mass member is mounted on the rotary shaft by fixing the first and second elastic support members to the rotary shaft, such that an axial first section having the center of gravity of the mass member is located closer to the position of the loop of the bending vibration on the rotary shaft than an axial second section, whereby the dynamic damper is mounted on the rotary shaft.
摘要:
A vibration isolator includes an inner cylindrical metal member, an outer cylindrical metal member located outside the inner cylindrical metal member in a radial direction, and a rubber elastic member interposed between the inner and outer cylindrical metal members so as to elastically connect between these metal members, and is supported by a support metal member forced and fixed into an axial hole of the inner cylindrical metal member. The inner cylindrica metal member is coaxially bulged in a radial direction.
摘要:
A dynamic damper mounted on a rod-shaped oscillating member includes: a cylindrical metallic mass member formed of sintered metal or forging and adapted to be disposed radially outwardly of the oscillating member; two elastic support members formed on axially opposite sides of the metallic mass member to elastically support the metallic mass member; and an elastic covering layer integrally formed with the elastic support member and fixed in close contact with substantially the entire area of the surface of the metallic mass member. The metallic mass member has at least two slits extending through a wall thickness thereof, which are open in and extending axially inwardly from axially opposite end faces of the metallic mass member, respectively, and are filled with the elastic covering layer. The metallic mass further has inclined planes formed at radially inner edges of circumferentially opposite open-end edge portions of each slit. The inclined plane extends over an inner surface of the corresponding slit, the corresponding axial end face of the metallic mass member and the inner circumferential surface of the metallic mass member, to chamfer the radially inner edge of the corresponding open-end edge portion.
摘要:
A dynamic damper mounted on a rod-shaped oscillating member is disclosed which includes: a cylindrical metallic mass member formed of sintered metal or forging and disposed radially outwardly of the oscillating member; two elastic support members formed on axially opposite sides of the metallic mass member to elastically support the metallic mass member; and an elastic covering layer integrally formed with the elastic support member and fixed in close contact with the substantially entire area of the surface of the metallic mass member. The metallic mass member has bevels in the form of tapered cylindrical surfaces formed at radially inner edges of axially opposite end faces of said metallic mass member, respectively. Each of the bevels extends over a corresponding one of the axially opposite end faces and an inner circumferential surface of the metallic mass member to thereby chamfer the corresponding one of the radially inner edges. The pair of elastic support members are fixed at large diameter end portions thereof to the bevels, respectively.