1363662 Power steering mechanism DAVID BROWN TRACTORS Ltd 5 June 1972 [10 June 1971] 19819/71 Heading B7H Tractor power steering mechanism comprises a double-acting hydraulic cylinder 16 slidable on a piston 17 having a piston-rod 15 which projects from both ends of the cylinder and is mounted transversely of the tractor, the cylinder 16 being pivotally connected to a lever 18 which has a fulcrum at one end and is linked at the other to steering agms 20 by respective track rods 19. The steering arms 20 are secured to king-pins 13 which carry front wheel stub axles and are mounted in a front axle beam 10 connected to the tractor for oscillating movement about a horizontal axis 12. A U-shaped frame 14 extending rearwardly from the axle beam 10 carries the piston-rod 15 and a swing- ing link 25 having at its free end the fulcrum of the lever 18. The lever 18 is connected to the cylinder 16 by studs 23 projecting from upper and lower arms 21, 22 of the lever into holes 24 in the cylinder. Radial and axial bores 26, 27 in the piston-rod 15 and hoses 28 connect a steering-wheel-operated control pump to the interior of the cylinder 16.
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机译：1363662动力转向机构DAVID BROWN TRACTORS Ltd 1972年6月5日[1971年6月10日] 19819/71标题B7H拖拉机动力转向机构包括可在活塞17上滑动的双作用液压缸16，该活塞具有从活塞杆两端伸出的活塞杆15。缸16安装在拖拉机的横向上，缸16可枢转地连接至杠杆18，杠杆18的一端具有支点，而杠杆18的另一端通过相应的履带杆19与转向架20相连。转向臂20固定至支撑前轮短轴的主销13并安装在连接至拖拉机的前轴梁10中，以绕水平轴12进行振荡运动。从轴梁10向后延伸的U形框架14承载活塞杆。在图15中示出了一个旋转连杆25，该旋转连杆25在其自由端具有杠杆18的支点。杠杆18通过双头螺栓23连接到圆柱体16，双头螺栓23从杠杆的上，下臂21、22伸入圆柱体的孔24中。 。活塞杆15中的径向和轴向孔26、27和软管28将方向盘操作的控制泵连接到气缸16的内部。
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