To provide an axle box support device for railroad vehicle having a structure capable of easily pulling out a cylindrical lamination rubber from a support shaft.SOLUTION: In an axle box support device 100 for railroad vehicle, in which an axle box body 504 is elastically supported by a truck frame 500 by a coil spring 30 and a second cylindrical lamination rubber 50, the coil spring 30 is interposed between the truck frame 500 and the axle box body 504, and is capable of expanding and contracting in the vertical direction; and the second cylindrical lamination rubber 50 is interposed between a member on the truck frame 500 side and a member on the axle box body 504 side and arranged concentrically. A support shaft 509a, which is a tapered cylindrical pin attached to the truck frame 500 side, is inserted in the center of the second cylindrical lamination rubber 50. An inner peripheral tube 50a, which is a cylindrical member arranged on the innermost surface of the second cylindrical lamination rubber 50, has an outer peripheral threaded part 50e at its tip.SELECTED DRAWING: Figure 9
【課題】簡易に支軸から円筒積層ゴムを抜くことが可能な構成を有する鉄道車両用軸箱支持装置の提供。【解決手段】台車枠500と軸箱体504との間に介装されて上下方向に伸縮可能なコイルばね30と、台車枠500側の部材と軸箱体504側の部材との間に介装され、同心状に配置される第2円筒積層ゴム50とを備え、コイルばね30及び第2円筒積層ゴム50によって軸箱体504が台車枠500に弾性的に支持される鉄道車両用の軸箱支持装置100において、第2円筒積層ゴム50の中央には、台車枠500側に取り付けられるテーパ円筒ピンである支軸509aが挿入され、第2円筒積層ゴム50の最内面に配置される円筒部材である内周管50aは、その先端部に外周ネジ部50eを備える。【選択図】図9
AXLE BOX SUPPORT DEVICE FOR RAILROAD VEHICLE
鉄道車両用軸箱支持装置
2020-08-06
Patent
Electronic Resource
Japanese