贵州省六枝特区矿物局机电修配厂铸件热处理炉,原台车移动是通过台车下面三对轴承式车轮来实现的。由于轴承间隙大、积尘多,致使受热后生锈;如将间隙改小,受热后变形造成台车移动阻力增大,曾多次拉断直径12毫米的钢丝绳。为解决这一问题,该厂根据差滚动式台车应用到砂型干燥炉中的有关经验,将 Liuzhi Special Zone, Guizhou Province Bureau of mineral electrical mechanical repair plant casting heat treatment furnace, the original trolley mobile through the trolley following three pairs of bearing-type wheels to achieve. As the bearing clearance, dust and more, resulting in rust after heating; such as the gap to small, deformation caused by the heat movement of the trolley increases, has repeatedly pulled off the diameter of 12 mm wire rope. To solve this problem, the plant based on poor rolling trolley applied to the sand drying furnace in the relevant experience will be