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1. 发明授权

US6003391A Transmission mechanism for a working vehicle 有权
标题翻译：工作车辆传动机构
公开(公告)号：US6003391A
公开(公告)日：1999-12-21
申请号：US145022
申请日：1998-09-01
申请人： Masaaki Kojima , Masashi Inanaga , Akinobu Rugou
发明人： Masaaki Kojima , Masashi Inanaga , Akinobu Rugou
IPC分类号： B60K17/28 , F16H37/04 , F16H61/70 , F16H37/00
CPC分类号： B60K17/28 , F16H37/04 , F16H2037/044 , F16H2037/049 , F16H37/043 , F16H61/70
摘要： A transmission mechanism having a PTO transmission system and a traveling transmission system and used for a working vehicle, which is so constructed that a input shaft 8 is coaxially freely perforated through a hollow traveling clutch shaft 13, both ends of input shaft 8 projects from the traveling clutch shaft 13, one projecting portion is journalled between a bearing wall 1b of a front transmission casing 1 and a front bearing plate 4 for covering an opening at the front end of the wall 1b, and a selecting device A including a forward and rearward movement switching clutch B, as an embodiment of an auxiliary speed change device, is disposed at this projecting portion. At the front bearing plate 4 is formed an oil relaying unit 4a in which an oil passage for the forward and rearward movement switching clutch B is bored, so that an oil passage bored in a thick portion 1d of the outer wall connects through a hydraulic control valve unit 35 attached to the outer wall of the front transmission casing 1 with the oil passage of oil relaying unit 4a without need of piping. Meanwhile, a PTO clutch 9 is coaxially disposed with the input shaft 8 sequentially to the projection thereof, between the input shaft 8 and the PTO clutch shaft 9 is disposed a PTO assembly of combination of a hydraulic PTO clutch D and hydraulic PTO brake E, an annular groove 53c is formed on the outer peripheral surface, a rear surface portion of the drum 53 is rotatably mounted to a bearing wall 2a of the rear transmission casing 2, and abutting portion 53e is formed on the inner periphery of the brake drum 53 and made possible to abut against a stopper pin 61 projecting into a recess 2f at the bearing wall 2, thereby allowing the idling of brake drum 53 in a predetermined angle with respect to the bearing wall 2a.
摘要翻译：具有PTO传动系统和行驶传动系统并用于作业车辆的传动机构，其结构使得输入轴8通过空心行进离合器轴13同轴地穿过，输入轴8的两端从行驶离合器轴13，一个突出部分被轴颈安装在前变速器壳体1的轴承壁1b和用于覆盖壁1b前端的开口的前轴承板4之间，以及包括前后的选择装置A 作为辅助变速装置的一个实施例的动作切换离合器B设置在该突出部分。在前轴承板4上形成有用于前后转换离合器B的油路被钻孔的油路继电单元4a，使得在外壁的厚壁部1d中钻出的油路通过液压控制阀单元35，其连接到前变速器壳体1的外壁，其中油介质单元4a的油通道不需要管道。同时，PTO离合器9与输入轴8同时布置成与其突起顺序，在输入轴8和PTO离合器轴9之间设置有液压PTO离合器D和液压PTO制动器E组合的PTO组件，在外周面形成有环状槽53c，滚筒53的后表面部分可旋转地安装在后传动壳体2的轴承壁2a上，并且在制动鼓53的内周上形成有抵接部分53e 并且能够抵靠在轴承壁2上突出到凹部2f中的止动销61，从而允许制动鼓53相对于轴承壁2a以预定角度怠速。

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