Thus, the utility model can compensate the unevenness of the ground, reduce the additional stress of the parts and enhance the stability of the movable scaffold.
所以本实用新型能够补偿地面不平，减小构件附加应力，提高移动式脚手架的稳定性。
2
The many indefinite exists in the design parameters and influence factors of the working stress and allowable stress of the roller movable teeth drive.