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公开(公告)号：US20200331345A1
公开(公告)日：2020-10-22
申请号：US16782351
申请日：2020-02-05
Applicant: ZF Friedrichshafen AG
Inventor： Walter FISCHER , Jürgen POHLENZ , Jan BAUDIS , Christian HERRMANN
Abstract: A drive-train of an agricultural machine, such as a tractor, has a power-split transmission (1) and a separate transfer case (2). The transfer case (2) can be connected to a drive motor and the gear ratio of the transfer case (2) can be adapted in such manner that the power-split transmission (1) can be used for various drive powers.
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公开(公告)号：US20160097442A1
公开(公告)日：2016-04-07
申请号：US14868479
申请日：2015-09-29
Applicant: ZF Friedrichshafen AG
Inventor： Tobias KREß , Jürgen POHLENZ , Christian HERRMANN , Erwin BAUR
CPC classification number: F16H47/02 , F16H47/04 , F16H2037/0886 , F16H2047/025 , F16H2047/045 , F16H2200/0034 , F16H2200/0086 , F16H2200/2012 , F16H2200/2043
Abstract: A transmission device with secondarily coupled power splitting, having hydrostatic and mechanical branches which can be summed by a summing gear system provided in the area of a central transmission shaft. At least two transmission ratio ranges, in the forward and reverse driving directions, can be obtained such that within the transmission ratio ranges the transmission ratio can, in each case, be varied continuously by a hydrostatic variator in the area of the hydrostatic branch. On the transmission input side, the central transmission shaft can directly couple a drive engine and functionally connect to both an auxiliary drive output shaft and a hydrostatic shaft of the variator, in the form of countershafts, and also to hydraulic pumps in the area of the transmission input. In the area of the transmission output, the central transmission shaft is coupled to a further hydrostatic shaft in the form of a countershaft.
Abstract translation: 一种具有二次耦合动力分配的传动装置，具有静压和机械分支，其可由设置在中心传动轴的区域中的加法齿轮系统相加。 可以获得在正向和反向行驶方向上的至少两个传动比范围，使得在传动比范围内，在每种情况下，传动比可以通过静液力分支区域中的静液力变速器连续变化。 在变速器输入侧，中央传动轴可以直接连接驱动发动机，并以功能方式连接辅助驱动输出轴和变速器的静液压轴，以中间轴的形式，以及液压泵在 传输输入。 在变速器输出区域，中心传动轴与中间轴形式的另一静水力轴相连。
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公开(公告)号：US20170350489A1
公开(公告)日：2017-12-07
申请号：US15498935
申请日：2017-04-27
Applicant: ZF Friedrichshafen AG
Inventor： Gerhard BAILLY , Jürgen POHLENZ
CPC classification number: F16H47/04 , F16H3/089 , F16H3/091 , F16H37/042 , F16H2003/0803
Abstract: A power split transmission which has a first part (2) and a second part (22) The first part (2) includes a variator (10), a summing gearset (6) and a shiftable transmission gear assembly (18). A standard transmission can be used as the multispeed transmission (23).
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公开(公告)号：US20170350486A1
公开(公告)日：2017-12-07
申请号：US15498932
申请日：2017-04-27
Applicant: ZF Friedrichshafen AG
Inventor： Gerhard BAILLY , Jürgen POHLENZ
CPC classification number: F16H37/043 , F16H3/006 , F16H2037/045 , F16H2200/0078
Abstract: A powershift transmission for agricultural machines, which is of modular design and has a first part (1) with a splitter group (3) and a second part (2) with a multi-speed transmission (4). The splitter group (3) is designed such that the rotational direction of the input shaft (5) and the rotational direction of the output shaft (8) remain the same, even when shifts are carried out in the splitter group (3).
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