回车道台车起拱是带式烧结机中普遍存在的问题，过去曾有不少人对此进行过理论探讨，但未能得到很好的解决。作者提出在烧结机尾部星轮轴上设置一液压阻力矩装置的构思，通过试验证明完全能够消除过剩力矩，从而减少甚至消除由于烧结机尾部台车推力过大而引起的起拱现象。 Back to the trolley car arching belt sintering machine is a common problem in the past, there have been many people have conducted theoretical discussions, but failed to get a good solution. The author put forward the idea of ​​setting a hydraulic resistance torque device on the rear axle of the sintering machine. It proved that the excess torque can be completely eliminated by the experiment, so as to reduce or even eliminate the arching caused by the excessive thrust force of the tail car of the sintering machine.