이 방음 차륜은, 차륜의 림부(5)의 내주면(6)에 장착된 방음 장치(3)를 포함한다. 방음 장치(3)는, 내주면(6)에 형성된 홈(8)에 끼워넣어져서 고정된 고정 링(10)과, 고정 링(10)의 외주면(10a)에 고착되고, 홈(8) 내에 배치되며, 복수의 제1 탄성체편을 갖는 제1 탄성체부(11A)와, 제1 탄성체부(11A)에 있어서 고정 링(10)과는 반대측에 고착되고, 홈(8) 내에 배치되며, 복수의 부가 질량편을 갖는 부가 질량부(12)와, 부가 질량부(12)에 있어서 제1 탄성체부(11A)와는 반대측에 고착되고, 홈(8) 내에 배치되며, 복수의 제2 탄성체편을 갖는 제2 탄성체부(11B)를 구비하고 있다. 방음 장치(3)는, 복수의 동적 흡진기를 포함한다. 각 동적 흡진기는, 제1 및 제2 탄성체편, 및 부가 질량편을 갖는다. 이 방음 차륜은, 차륜의 진동에 의한 소음을 큰 폭으로 저감 가능하고, 내구성이 뛰어나다.
This soundproof wheel includes a soundproofing device (3) which is mounted to an inner peripheral surface (6) of a rim section (5) of the wheel. The soundproofing device (3) is provided with: a fixing ring (10) which is fitted in and fixed to a groove (8) formed in the inner peripheral surface (6); a first elastic body section (11A) which is stuck to an outer peripheral surface (10a) of the fixing ring (10), is disposed within the groove (8), and has a plurality of first elastic body pieces; an additional mass section (12) which is stuck to a side of the first elastic body section (11A) opposite to the fixing ring (10), is disposed within the groove (8), and has a plurality of additional mass pieces; and a second elastic body section (11B) which is stuck to a side of the additional mass section (12) opposite to the first elastic body section (11A), is disposed within the groove (8), and has a plurality of second elastic body pieces. The soundproofing device (3) includes a plurality of dynamic vibration absorbers. Each of the dynamic vibration absorbers has first and second elastic body pieces and an additional mass piece. This soundproof wheel allows for significant reduction in wheel vibration noise and is highly durable.
NOISE-DAMPED WHEEL FOR RAILWAY VEHICLE
철도 차량용 방음 차륜
2017-03-22
Patent
Electronic Resource
Korean
IPC: | B60B VEHICLE WHEELS , Räder für Fahrzeuge |
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