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1. 发明授权

EP0277103B1 Towing device for a tractor 失效
标题翻译：拖拉机的设备
公开(公告)号：EP0277103B1
公开(公告)日：1991-07-03
申请号：EP88850014.7
申请日：1988-01-15
申请人： Valmet Oy
发明人： Mänttäri, Erkki
IPC分类号： B60D1/00
CPC分类号： B60D1/465

2. 发明公开

EP0277103A1 Towing device for a tractor 失效
标题翻译： KupplungsvorrichtungfürTraktor。
公开(公告)号：EP0277103A1
公开(公告)日：1988-08-03
申请号：EP88850014.7
申请日：1988-01-15
申请人： Valmet Oy
发明人： Mänttäri, Erkki
IPC分类号： B60D1/00
CPC分类号： B60D1/465
摘要： The object of the invention is a towing device for a tractor, which towing device consists of the towing device's frame (20) to which the drawbar (10) is arranged to be connected. The towing device's frame (20) is connected using a hinge joint to the frame of the tractor and to facilitate the connecting of the drawbar (10) the first hitching implements consisting of the aperture (27) and the second hitching implements consisting of the top support plate (32) and the bottom support plate (35) fitted midway along the towing device's frame (20). The drawbar (10) is arranged to be connected to the towing device's frame (20) by pushing the said drawbar through the aperture (27) between the top and bottom support plates (32,35). The drawbar (10) is arranged to be connected to the aperture (27) by the fastening bolt (45) passing through the drawbar (10) and the plates bounding the aperture (27). Several holes (28) have been formed for the fastening bolt (45) in the plates and correspondingly several holes have been formed to pass transversely through the drawbar (10) so that the drawbar (10) can be installed in the towing device's frame (20) into several positions both longitudinally as well as sideways. The lateral control of the drawbar (10) is facilitated by a guide stud (40) which extends through the drawbar (10) and is supported by the top support plate (32) and the bottom support plate (35) delimiting the second hitching implements.
摘要翻译：本发明的目的是用于拖拉机的牵引装置，该牵引装置由牵引装置的框架（20）组成，牵引杆（10）布置成与之连接。拖曳装置的框架（20）使用铰链接头连接到拖拉机的框架并且便于牵引杆（10）连接由孔（27）组成的第一连接工具和由顶部支撑板（32）和底部支撑板（35）沿着牵引装置的框架（20）中间安装。牵引杆（10）被布置成通过将所述牵引杆通过顶部和底部支撑板（32,35）之间的孔（27）推动而连接到牵引装置的框架（20）。牵引杆（10）被布置成通过穿过牵引杆（10）的紧固螺栓（45）和限定孔（27）的板连接到孔（27）。已经形成了用于板中的紧固螺栓（45）的几个孔（28），并且相应地已经形成几个孔，以横向通过牵引杆（10），使得牵引杆（10）可以安装在牵引装置的框架 20）纵向和侧向分成几个位置。牵引杆（10）的横向控制通过延伸穿过牵引杆（10）并由顶部支撑板（32）支撑的导柱（40）和限定第二连接装置的底部支撑板（35）来实现。

3. 发明公开

EP0108347A1 Hydraulic system for a tractor or equivalent 失效
标题翻译： HydrauliksystemfürSchlepper oder dergleichen。
公开(公告)号：EP0108347A1
公开(公告)日：1984-05-16
申请号：EP83110758.6
申请日：1983-10-27
申请人： Valmet Oy
发明人： Mänttäri, Erkki
IPC分类号： A01B63/10 , F15B13/09
CPC分类号： F15B11/17 , A01B63/1013 , E02F9/2239 , E02F9/2292 , F15B2211/20584 , F15B2211/3116 , F15B2211/327 , F15B2211/4053 , F15B2211/40584 , F15B2211/455 , F15B2211/46 , F15B2211/473 , F15B2211/7142 , F15B2211/78
摘要： A hydraulic system for a tractor, comprising hydraulic pumps (3,4) driven by the tractor's engine (M), their intake sides connected over an intake filter (2) to an oil tank (1). The system comprises a valve mechanism (5, 7, 8, 9, 10, 11, 13, 14,15) by mediation of which the hydraulic pumps (3,4) have been connected to the lifting cylinder (12) of the tractor's three-point lifting attachment. The hydraulic system comprises at least two hydraulic pumps (3,4), which have been connected to be in parallel. Of these hydraulic pumps, one is a mini-pump (4) and the other is a bigger main pump (3) with an output several times the output of the mini-pump (4). The output (Q 0 ) of the mini-pump (4) is about 15 to 30% of the output (Q,) of the larger pump (3). The functions controlled by the control automatics (22,23,24) and/or the functions (25) based on lifting attachment manipulation from the rear of the tractor and/or the leakage compensation of the lifting cylinder (12) have been arranged to take place under control by an electric directional valve with two magnets and using exclusively the output of the mini-pump (4). The combined outputs of both pumps (3,4) can through the main governor valve (10) be directed to the lifting cylinder (12) of the tractor's lifting attachment.
摘要翻译：一种用于拖拉机的液压系统，包括由拖拉机发动机（M）驱动的液压泵（3,4），其进气侧通过进气过滤器（2）连接到油箱（1）。该系统包括阀机构（5,7,8,9,10,11,13,14,15），其中液压泵（3,4）已经被连接到拖拉机的提升缸（12）三点提升附件。液压系统包括至少两个液压泵（3,4），它们被并联连接。在这些液压泵中，一个是微型泵（4），另一个是较大的主泵（3），输出量是微型泵（4）的输出数倍。小型泵（4）的输出（Q0）为大型泵（3）的输出（Q1）的约15〜30％。基于来自拖拉机后部的提升附接操作和/或提升缸（12）的泄漏补偿的由控制自动化（22,23,24）和/或功能（25）控制的功能已被布置成由具有两个磁体的电动换向阀控制，并仅使用微型泵（4）的输出。两个泵（3,4）的组合输出可以通过主调节阀（10）被引导到拖拉机提升附件的提升缸（12）。

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