Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
SERVICE VEHICLE
To suppress pressure loss or temperature rise of hydraulic oil when a high load is applied to a work device, in a state where hydraulic oil of a first hydraulic pump is make confluent with hydraulic oil of a second hydraulic pump, in a service vehicle.SOLUTION: A service vehicle comprises a first supply oil passage 31 that supplies hydraulic oil of a first hydraulic pump 21 to a first work device 11, and a second supply oil passage 32 connected between the first supply oil passage 31 and a confluence valve 25. The confluence valve 25 has a confluence position 25a at which hydraulic oil of a second hydraulic pump 22 is supplied from the second supply oil passage 32 to the first supply oil passage 31, and a non-confluence position 25b at which hydraulic oil of the second hydraulic pump 22 is not supplied to the first supply oil passage 31 and the second supply oil passage 32. The service vehicle comprises a release unit 36 that operates the confluence valve 25 to the non-confluence position 25b based on a load applied to the first work device 11.SELECTED DRAWING: Figure 2
【課題】作業車において、第１油圧ポンプの作動油と第２油圧ポンプの作動油とが合流して作業装置に供給される状態で、高い負荷が作業装置に掛かった場合、圧力損失や作動油の温度上昇を抑える。【解決手段】第１油圧ポンプ２１の作動油を第１作業装置１１に供給する第１供給油路３１と、第１供給油路３１と合流弁２５とに亘って接続された第２供給油路３２とが備えられる。合流弁２５は、第２油圧ポンプ２２の作動油を第２供給油路３２から第１供給油路３１に供給する合流位置２５ａと、第２油圧ポンプ２２の作動油を第１供給油路３１及び第２供給油路３２に供給しない非合流位置２５ｂとを有している。第１作業装置１１に掛かる負荷に基づいて、合流弁２５を非合流位置２５ｂに操作する解除部３６が備えられている。【選択図】図２
SERVICE VEHICLE
To suppress pressure loss or temperature rise of hydraulic oil when a high load is applied to a work device, in a state where hydraulic oil of a first hydraulic pump is make confluent with hydraulic oil of a second hydraulic pump, in a service vehicle.SOLUTION: A service vehicle comprises a first supply oil passage 31 that supplies hydraulic oil of a first hydraulic pump 21 to a first work device 11, and a second supply oil passage 32 connected between the first supply oil passage 31 and a confluence valve 25. The confluence valve 25 has a confluence position 25a at which hydraulic oil of a second hydraulic pump 22 is supplied from the second supply oil passage 32 to the first supply oil passage 31, and a non-confluence position 25b at which hydraulic oil of the second hydraulic pump 22 is not supplied to the first supply oil passage 31 and the second supply oil passage 32. The service vehicle comprises a release unit 36 that operates the confluence valve 25 to the non-confluence position 25b based on a load applied to the first work device 11.SELECTED DRAWING: Figure 2
【課題】作業車において、第１油圧ポンプの作動油と第２油圧ポンプの作動油とが合流して作業装置に供給される状態で、高い負荷が作業装置に掛かった場合、圧力損失や作動油の温度上昇を抑える。【解決手段】第１油圧ポンプ２１の作動油を第１作業装置１１に供給する第１供給油路３１と、第１供給油路３１と合流弁２５とに亘って接続された第２供給油路３２とが備えられる。合流弁２５は、第２油圧ポンプ２２の作動油を第２供給油路３２から第１供給油路３１に供給する合流位置２５ａと、第２油圧ポンプ２２の作動油を第１供給油路３１及び第２供給油路３２に供給しない非合流位置２５ｂとを有している。第１作業装置１１に掛かる負荷に基づいて、合流弁２５を非合流位置２５ｂに操作する解除部３６が備えられている。【選択図】図２
SERVICE VEHICLE
作業車
YANAI HIDETAKA (Autor:in) / SHITOKIDEN SHUMPEI (Autor:in)
11.10.2024
Patent
Elektronische Ressource
Japanisch
| Europäisches Patentamt | 2024