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1. 发明授权

EP2990691B1 WHEEL LOADER 有权
公开(公告)号：EP2990691B1
公开(公告)日：2018-09-05
申请号：EP14787403.6
申请日：2014-04-02
申请人： Komatsu Ltd.
发明人： KOBIKI Yasuhiro
IPC分类号： F16H47/04 , F16H61/04 , F16H61/421 , F16H61/431 , F16H61/462 , F16H47/02
CPC分类号： E02F9/2253 , B60Y2200/415 , E02F3/34 , E02F3/422 , E02F9/2062 , E02F9/2079 , E02F9/2296 , F16H47/02 , F16H47/04 , F16H47/10 , F16H61/02 , F16H61/04 , F16H61/0437 , F16H61/421 , F16H61/431 , F16H61/462 , F16H61/66 , F16H2037/0886 , F16H2047/045 , F16H2200/2005
摘要： A wheel loader includes: a mechanical drive unit; a mechanical drive clutch (43, 47) controlling transmission/cutoff of a power in the mechanical drive unit; an HST pump (22) driven by an engine; a hydraulic motor (23, 24) driven by a hydraulic oil delivered from the HST pump (22); a hydraulic drive unit; a hydraulic drive clutch (54, 65) controlling transmission/cutoff of a power in the hydraulic drive unit; a load detecting unit (101) detecting an amount of a load; a vehicle speed sensor (116) detecting a vehicle speed; a switching controlling unit (102) setting a switching vehicle speed in accordance with the amount of the load; and a vehicle-body controller (100) switching between mechanical drive state and hydraulic drive state based on the switching controlling unit (102). The switching controlling unit (102) sets the switching vehicle speed at a high-speed side when the load becomes large and at a low-speed side when the load becomes small.

2. 发明公开

EP2990692A1 WHEEL LOADER 有权
标题翻译：轮式装载机
公开(公告)号：EP2990692A1
公开(公告)日：2016-03-02
申请号：EP14788688.1
申请日：2014-04-02
申请人： Komatsu Ltd.
发明人： KOBIKI Yasuhiro
IPC分类号： F16H47/02 , B60K17/10
CPC分类号： E02F9/20 , B60K17/10 , B60K17/344 , B60K17/356 , B60Y2200/415 , E02F3/283 , E02F3/422 , E02F9/202 , E02F9/2292 , F16H47/04 , F16H2037/0886 , F16H2200/2005 , Y02T10/76
摘要： A wheel loader (1) includes: a mechanical drive unit (21); an HST pump (22) that feeds a hydraulic oil for travelling; an accessory hydraulic pump (28) that feeds a hydraulic oil for a bucket (3); first and second hydraulic motors (23, 24) driven by the hydraulic oil from the HST pump (22); and a power combining unit (25) configured to combine powers of the first and second hydraulic motors (23, 24) with a power of the mechanical drive unit (21), in which the mechanical drive unit (21) is provided between an engine shaft to an output shaft with a shaft center (C2), the power combining unit (25) is configured to combine the power of the mechanical drive unit (21) with the powers of the first and second hydraulic motors (23, 24) at a position above the output shaft, and the first and second combining gears (52, 53) and a gear (55), to which combined powers are transmitted, are disposed between the first and second hydraulic motors (23, 24) and the output shaft.
摘要翻译：轮式装载机（1）包括：机械驱动单元（21）; HST泵（22），其输送用于行驶的液压油; 向铲斗（3）供给工作油的辅助液压泵（28）; 由来自HST泵（22）的液压油驱动的第一和第二液压马达（23,24）; 和动力组合单元（25），其被配置为将第一和第二液压马达（23,24）的动力与机械驱动单元（21）的动力组合，其中机械驱动单元（21）设置在发动机所述动力结合单元25构造成将所述机械驱动单元21的动力与所述第一和第二液压马达23,24的动力结合在一起以形成具有轴心C2的输出轴，在第一和第二液压马达（23,24）与输出轴之间的输出轴上方的位置以及第一和第二组合齿轮（52,53）和齿轮（55）轴。

3. 发明授权

EP2990692B1 WHEEL LOADER 有权
公开(公告)号：EP2990692B1
公开(公告)日：2018-09-05
申请号：EP14788688.1
申请日：2014-04-02
申请人： Komatsu Ltd.
发明人： KOBIKI Yasuhiro
IPC分类号： F16H47/04 , B60K17/10 , B60K17/344
CPC分类号： E02F9/20 , B60K17/10 , B60K17/344 , B60K17/356 , B60Y2200/415 , E02F3/283 , E02F3/422 , E02F9/202 , E02F9/2292 , F16H47/04 , F16H2037/0886 , F16H2200/2005 , Y02T10/76
摘要： A wheel loader (1) includes: a mechanical drive unit (21); an HST pump (22) that feeds a hydraulic oil for travelling; an accessory hydraulic pump (28) that feeds a hydraulic oil for a bucket (3); first and second hydraulic motors (23, 24) driven by the hydraulic oil from the HST pump (22); and a power combining unit (25) configured to combine powers of the first and second hydraulic motors (23, 24) with a power of the mechanical drive unit (21), in which the mechanical drive unit (21) is provided between an engine shaft to an output shaft with a shaft center (C2), the power combining unit (25) is configured to combine the power of the mechanical drive unit (21) with the powers of the first and second hydraulic motors (23, 24) at a position above the output shaft, and the first and second combining gears (52, 53) and a gear (55), to which combined powers are transmitted, are disposed between the first and second hydraulic motors (23, 24) and the output shaft.

4. 发明公开

EP2990691A1 WHEEL LOADER 有权
标题翻译：轮式装载机
公开(公告)号：EP2990691A1
公开(公告)日：2016-03-02
申请号：EP14787403.6
申请日：2014-04-02
申请人： Komatsu Ltd.
发明人： KOBIKI Yasuhiro
IPC分类号： F16H47/02 , F16H61/02 , F16H61/04
CPC分类号： E02F9/2253 , B60Y2200/415 , E02F3/34 , E02F3/422 , E02F9/2062 , E02F9/2079 , E02F9/2296 , F16H47/02 , F16H47/04 , F16H47/10 , F16H61/02 , F16H61/04 , F16H61/0437 , F16H61/421 , F16H61/431 , F16H61/462 , F16H61/66 , F16H2037/0886 , F16H2047/045 , F16H2200/2005
摘要： A wheel loader includes: a mechanical drive unit; a mechanical drive clutch (43, 47) controlling transmission/cutoff of a power in the mechanical drive unit; an HST pump (22) driven by an engine; a hydraulic motor (23, 24) driven by a hydraulic oil delivered from the HST pump (22); a hydraulic drive unit; a hydraulic drive clutch (54, 65) controlling transmission/cutoff of a power in the hydraulic drive unit; a load detecting unit (101) detecting an amount of a load; a vehicle speed sensor (116) detecting a vehicle speed; a switching controlling unit (102) setting a switching vehicle speed in accordance with the amount of the load; and a vehicle-body controller (100) switching between mechanical drive state and hydraulic drive state based on the switching controlling unit (102). The switching controlling unit (102) sets the switching vehicle speed at a high-speed side when the load becomes large and at a low-speed side when the load becomes small.
摘要翻译：轮式装载机包括：机械驱动单元; 控制机械驱动单元中的动力的传递/切断的机械式驱动离合器（43,47）由发动机驱动的HST泵（22）由从HST泵（22）输出的液压油驱动的液压马达（23,24）; 液压驱动单元; 液压驱动离合器（54,65），其控制液压驱动单元中的动力的传递/切断; 负载检测单元（101），用于检测负载量; 检测车速的车速传感器（116）切换控制单元（102），根据负载量设定切换车速; 以及基于所述切换控制部（102）切换机械驱动状态和液压驱动状态的车体控制器（100）。切换控制单元（102）在负载变大时将切换车速设定在高速侧，而在负载变小时将切换车速设定在低速侧。

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