| 1. | Crawler bulldozer . bolts for drive sprocket segment 履带式推土机.驱动轮齿块用螺栓 |
| 2. | Crawler bulldozer . nuts for track shoe and sprocket segment 履带式推土机.履带和齿块用螺母 |
| 3. | Crawler bulldozer . sprocket segment for drive 履带式推土机.驱动轮齿块 |
| 4. | Crawler bulldozer . steering brake bands 履带式推土机.转向制动带 |
| 5. | Crawler bulldozer . track rollers 履带式推土机.支重轮 |
| 6. | According to the mechanical conditions of ty220 crawler bulldozer , the strength analysis and test research for the frames under different operations are proceeded . the main contents included in this paper as follows : 1 本文针对ty220履带式推土机的受力状况,对台车架不同工况进行了强度分析与试验研究,主要内容包括: 1 |