公开(公告)号：EP1005953A2

公开(公告)日：2000-06-07

申请号：EP99123710.8

申请日：1999-11-29

申请人： THK CO. LTD.

发明人： Michioka, Hidekazu, THK CO., LTD. ,  Saitou, Yoshiaki, Kofu Works, THK CO. LTD. ,  Katsumata, Yasuhide, Kofu Works, THK CO. LTD. ,  Honma, Mitsuaki, Kofu Works, THK CO. LTD.

IPC分类号： B23Q11/08 ,  F16C29/08

CPC分类号： F16C29/086 ,  B23Q11/0875 ,  B23Q11/0883 ,  B23Q11/124 ,  F16C29/0647 ,  F16C33/6611 ,  F16C33/6648 ,  F16C2322/39

摘要： This invention relates to a dust preventing structure of a guide unit comprising a track shaft (1) and a sliding member (2) engaging the track shaft via a plurality of rolling bodies (3) such that it is capable of reciprocating in a length direction thereof. Elastic members (16a, b, c) in firm contact with the track shaft are overlaid in the length direction of the track shaft. A lubricant pocket forming member having a concave groove portion for forming a lubricant pocket constituted of the elastic members and filled with lubricant by a help of the surface of the track shaft as well is provided so as to achieve a smooth reciprocating motion of the sliding member (2) with respect to the track shaft (1) with less sliding friction. Particularly, under even a severe use condition in which use of coolant is required or dust, dirt, wooden pieces, cutting powder or the like falls on the guide unit, a smooth reciprocating motion of the sliding member with respect to the track shaft can be maintained in a long period.

摘要翻译： 本发明涉及一种引导单元的防尘结构，其包括轨道轴（1）和滑动构件（2），其经由多个滚动体（3）与轨道轴接合，使得其能够沿长度方向 它们。 与轨道轴牢固接触的​​弹性构件（16a，b，c）在轨道轴的长度方向上重叠。 具有凹槽部分的润滑剂袋形成部件也被设置成用于形成由弹性部件构成的润滑剂袋并且通过履带轴的表面填充有润滑剂的凹槽部分，以便实现滑动件的平滑往复运动 （2）相对于具有较小滑动摩擦力的履带轴（1）。 特别地，即使在需要使用冷却剂的严酷使用条件下，或者灰尘，污垢，木质片，切割粉末等落在引导单元上时，滑动构件相对于轨道轴的平滑往复运动可以是 保持了很长时间。