Coaxial positioning and installing structure for speed reducer box and motor flange

Abstract

The invention discloses a coaxial positioning and installing structure for a speed reducer box and a motor flange. The coaxial positioning and installing structure comprises the speed reducer box anda motor. A pressing bearing and a transition end cover of a bearing cover are arranged between an input shaft of the speed reducer box and the speed reducer box. The input shaft is connected with a high-speed output shaft of the motor through a coupler. The motor is provided with the flange. The lower end face of the flange is internally provided with an annular flange female spigot boss with a notch, the speed reducer box is integrally provided with an annular box male spigot boss with a notch, the annular flange female spigot boss is clamped and connected to the outer side wall of the annular box male spigot boss, and the flange and the annular flange female spigot boss are fixed to the speed reducer box through fastening bolts. By means of the coaxial positioning and installing structure, coaxiality of the flange and the speed reducer box is guaranteed, the flange can be directly arranged on the speed reducer box, manual alignment is not needed, and the problem that a flange upper part female spigot and a high-speed output shaft are not coaxial is solved; and meanwhile, installation is convenient, and the labor cost is saved.

Description

technical field [0001] The invention relates to the field of positioning connection between a reducer casing and a motor flange, in particular to a coaxial positioning and installation structure between a reducer casing and a motor flange. Background technique [0002] In the prior art, the flange of the motor is indirectly positioned with the reducer box, wherein the reducer box and the transition end cover, the transition end cover and the flange need clearance fit for the convenience of assembly and there are machining errors. After installation The jump between the flange seam and the high-speed output shaft of the motor is generally 0.15-0.2mm, the standard value is ≤0.1mm, which is completely beyond the range specified by the standard. Since the flange seam and the transition end cover seam are clearance fit, so Some machines can be adjusted to the standard range through manual adjustment, but this greatly increases labor costs. Contents of the invention [0003] Th...

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