公开(公告)号：EP1027503A1

公开(公告)日：2000-08-16

申请号：EP98945736.1

申请日：1998-09-25

申请人： Volvo Wheel Loaders AB

发明人： Vigholm, Bo

IPC分类号： E02F9/22

CPC分类号： E02F9/2217 ,  E02F9/2207

摘要： The invention relates to a load arm suspension system (6) for a load arm assembly (2) with at least one hydraulic cylinder (4), which load arm suspension system (6) comprises an accumulator (8) which is connected to a first cylinder space (14) of the at least one cylinder (4). A tank (20) for hydraulic oil is connected to a second cylinder space (16) of the at least one cylinder (4). A first valve member (12) is arranged between the accumulator (8) and the first cylinder space (14) of the at least one cylinder (4) and a second valve member (18) is arranged between the tank (20) and the second cylinder space (16) of the at least one cylinder (4).

公开(公告)号：EP1027503B1

公开(公告)日：2010-01-06

申请号：EP98945736.1

申请日：1998-09-25

申请人： Volvo Wheel Loaders AB

发明人： Vigholm, Bo

IPC分类号： E02F9/22

CPC分类号： E02F9/2217 ,  E02F9/2207

公开(公告)号：EP1224101A1

公开(公告)日：2002-07-24

申请号：EP00973307.2

申请日：2000-10-18

申请人： Volvo Wheel Loaders AB

发明人： Vigholm, Bo

IPC分类号： B60T8/18 ,  B60T11/24 ,  B60T15/34

CPC分类号： B60T13/141 ,  B60T8/26 ,  B60T13/686

摘要： The invention relates to a brake device (1) for a construction machine, comprising a first brake circuit (2), which is coupled to a first brake member (4) on a first wheel axle (6) of the machine, a second brake circuit (8), which is coupled to a second brake member (10) on a second wheel axle (12) of the machine, the first and second brake circuits (2, 8) being independent of one another, a pressure source (14) for hydraulic oil, which is coupled to the first and second brake circuit (2, 8), and a brake valve (16, 16'), which is coupled to the first and second brake circuit (2, 8), which brake valve (16, 16') is designed to control the hydraulic oil from the pressure source (14) to the brake members (4, 10) on the wheel axles (6, 12). The first or second brake circuit (2, 8) comprises limiting elements (18, 42'), which limit the pressure and/or flow of hydraulic oil when the brake valve (16, 16') controls the hydraulic oil from the pressure source (14) to the brake members (4, 10) on the wheel axles (6, 12).