| 摘要 |
A caterpillar undercarriage of heading machine contains a frame, a reducer of motion, two drive sprockets, and a caterpillar track with front running roller, a track roller and a mechanism of tension of caterpillar track. The mechanism of tension has a tension roller fastened on a common axle with a cylindrical guide, which enters into guiding borings of the frame of undercarriage, in the case the tension roller is located in the upper part of the undercarriage, and the bogie frame under tension roller is made in the form of a guiding surface, which is parallel to the direction of displacement of the roller at tension; moreover the housing of tension roller is connected with the cylindrical guide with possibility of displacement and has a bearing surface connected with the guiding surface on the frame of undercarriage. |
