To provide a hydraulic axle driving device which achieves further downsizing compared to conventional products.SOLUTION: An axle driving device 1 includes: axles 2L, 2R; a hydraulic static transmission (HST 3) having a hydraulic pump 39 and a hydraulic motor 33 fluidly connected with each other by a center case 31; a reduction gear train 4 which transmits output of the HST 3 to the axles; and an axle driving case 10 which supports the axles 2L, 2R, houses the HST 3 and the reduction gear train 4 therein, and forms an interior into an oil reservoir. The axle driving case 10 forms a housing chamber 10a having a single space for installing the HST 3 and the reduction gear train 4 therein and comprises: an upper housing 11 forming an upper part of the housing chamber 10a; and a lower housing 12 forming a lower part of the housing part 10a. The lower housing 12 has an internal space having a substantially cubic shape.SELECTED DRAWING: Figure 3
【課題】従来に比べさらなる小型化が実現された油圧式車軸駆動装置を提供する。【解決手段】車軸駆動装置1は、車軸2L・2Rと、センターケース31によって互いに流体接続される油圧ポンプ39及び油圧モータ33を有するHST3と、HST3の出力を前記車軸に伝達する減速ギア列4と、車軸2L・2Rを支持するとともに、内部にHST3と減速ギア列4を収容して油溜まりとする車軸駆動ケース10と、を備え、車軸駆動ケース10は、その内部に、HST3と減速ギア列4を設置するための単一の空間を有する収容室10aを形成し、収容室10aの上部を形成する上ハウジング11と、収容室10aの下部を形成する下ハウジング12により構成され、下ハウジング12が略立方体状の内部空間を有する。【選択図】図3
HYDRAULIC AXLE DRIVING DEVICE
油圧式車軸駆動装置
2020-12-10
Patent
Electronic Resource
Japanese
IPC: | B60K Anordnung oder Einbau von Antriebseinheiten oder von Kraft- bzw. Drehmomentübertragungen in Fahrzeugen , ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES / B60T Bremsanlagen für Fahrzeuge oder Teile davon , VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF / F16H Getriebe , GEARING |
Vehicle steering axle hydraulic auxiliary driving device and vehicle driving method
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