The invention relates to the technical field of elevators, in particular to a running assisting mechanism ensuring stable lifting of an elevator. The running assisting mechanism comprises an elevatorcar. A connecting seat is installed on the top of the elevator car. Flattening devices are installed on the left side and the right side of the elevator car. The flattening devices on the left side and the right side are installed on the left side wall and the right side wall of the elevator car in a mirror image manner. Each flattening device comprises a transmission frame and a moving frame, wherein fixing plates are installed at the upper end and the lower end of the transmission frame, a transmission screw rod is arranged between the fixing plates at the upper end and the lower end in a penetrating manner, the transmission screw rod is a bidirectional threaded rod, the directions of the threads on the surfaces of the left section and the right section of the transmission threaded rod are opposite, the left section and the right section of the transmission threaded rod are provided with transmission shafts, a fixing seat is installed on the outer side wall of the moving frame, and transmission connecting rods are arranged between the transmission sleeves and the fixing seats for connection. By means of the running assisting mechanism, the moving frames are driven to expand towards the outer side through threaded transmission, and therefore a pulley and a rail of an inner cavity of an elevator shell can be driven to be matched to be installed, and limiting in the left-right direction during running of the elevator car is maintained.

本发明涉及电梯技术领域，具体是一种保证电梯稳定升降的运行辅助机构，包括电梯厢，所述电梯厢的顶部安装有连接座，所述电梯厢的左右两侧均安装有平整装置，左右两侧的平整装置呈镜像安装在电梯厢的左右侧壁上，所述平整装置包括有传动架和活动架，所述传动架上下端均安装有固定板，上下两端的固定板之间穿设有传动螺杆，所述传动螺杆为双向螺纹杆并且其左右两段的表面螺纹的方向相反，所述传动螺杆的左右两段均安装有传动套，所述活动架的外侧壁上安装有固定座，所述传动套与固定座之间设置有传动连杆相连接。本发明通过螺纹传动带动活动架向外侧展开，从而带动滑轮与电梯井内腔的轨道锲合安装，保持电梯厢运行时左右向的限位。