The invention discloses a crane three-fulcrum bridge and a manufacturing method thereof.The crane three-fulcrum bridge comprises two main beams, a left end beam, a right end beam, a middle beam and a platform, the two main beams are symmetrically arranged, the left end beam is arranged at the left ends of the main beams, the right end beam is arranged at the right ends of the main beams, and the middle beam is arranged between the two main beams and the left end beam and between the two main beams and the right end beam; the platform is arranged on an area defined by the two main beams, the middle beam and the right end beam, and the main beams, the beam bodies, the upper end beam, the lower end beam and the middle beam are manufactured according to stress conditions and functional requirements; the two main beams, the beam body, the upper end beam and the lower end beam form an isosceles trapezoid; the first installation supporting ring and the second installation supporting ring are machined, the middle beam and the platform are welded, rigid connection is adopted, the rail gnawing factors of a bridge frame are reduced, the torsional rigidity is improved, the width of the crane is reduced, and the parallelism of the axes of the wheels is guaranteed.
本发明公开了一种起重机三支点桥架及其制作方法,起重机三支点桥架包括两个主梁、左端梁、右端梁、中间梁和平台,两个主梁对称设置,左端梁设置在主梁左端,右端梁设置主梁右端,中间梁设置在两个主梁和左端梁与右端梁之间,平台设置在两个主梁、中间梁和右端梁围出的区域上,根据受力状况和功能需求制作主梁、梁体、上端梁、下端梁和中间梁;使两个主梁、梁体、上端梁和下端梁形成等腰梯型;对第一安装支撑环和第二安装支撑环进行加工,将中间梁和平台焊接进行焊接,本发明采用刚性联接,减少了桥架啃轨因素,提高了扭转刚度,减小了起重机宽度,保证了车轮轴线的平行度。
Three-fulcrum bridge frame of crane and manufacturing method of three-fulcrum bridge frame
起重机三支点桥架及其制作方法
2023-03-03
Patent
Electronic Resource
Chinese