To provide a wheel shaft lifting device for a railway vehicle capable of securing a stroke amount larger than the depth of a pit where the device is installed.SOLUTION: A wheel shaft lifting device 100 for a railway vehicle used for maintaining a wheel shaft 50 of the railway vehicle, includes: a first shaft support unit and a second shaft support unit respectively receiving axle end parts 50a of the wheel shaft 50 and corresponding to shaft support parts rotatably supported by the wheel shaft 50; an engagement chain that has a pair of chain parts such that a pair of chain members are mutually moved in a traveling direction to be engaged and integrated with each other; a first linear motion guide unit and a second linear motion guide unit including a multistage stroke mechanism; and a first lifting device 111A and a second lifting device 111B for respectively moving up/down the first shaft support unit and the second shaft support unit by using a first motor with a brake and a second motor with a brake that correspond to driving mechanisms for moving the engagement chain forward and backward.SELECTED DRAWING: Figure 2
【課題】装置を据え付けるピットの深さより大きなストローク量を確保可能な鉄道車両用の輪軸昇降装置を提供する。【解決手段】鉄道車両の輪軸50を整備するのに用いる鉄道車両用の輪軸昇降装置100において、輪軸50の車軸端部50aをそれぞれ受け、輪軸50が回転可能に支持する軸支持部に相当する第1軸支持ユニット及び第2軸支持ユニットと、一対のチェーン部分を有し、対をなすチェーン部材同士が進行方向に移動することで相互に噛み合って一体化する噛み合いチェーンと、多段ストローク機構を備える第1直動ガイドユニット及び第2直動ガイドユニットと、噛み合いチェーンを進退させるため駆動機構に相当する第1ブレーキ付きモータ及び第2ブレーキ付きモータと、を用いた、第1軸支持ユニット及び第2軸支持ユニットをそれぞれ昇降させる第1昇降装置111A及び第2昇降装置111Bと、を備える。【選択図】図2
WHEEL SHAFT LIFTING DEVICE
輪軸昇降装置
2021-04-15
Patent
Elektronische Ressource
Japanisch
IPC: | B66F HOISTING, LIFTING, HAULING, OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD , Hub-, Verhol- oder Schubvorrichtungen, soweit nicht anderweitig vorgesehen, z.B. Vorrichtungen mit unmittelbarer Krafteinwirkung auf die Last |
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