Shrinkage fit connecting method of worm-gear and leadscrew nut for electric cylinder

• Main Authors: WANG XUYONG, WU QIONG, YE QIAN, JIN HUILIANG, FENG ZHENGJIN
• Format: Patent
• Language: Chinese; English
• Published: 24.06.2009
• Subjects: COMBINED OPERATIONS; MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR; OTHER WORKING OF METAL; PERFORMING OPERATIONS; TRANSPORTING; UNIVERSAL MACHINE TOOLS

The invention relates to a method for connecting a worm wheel of an electric cylinder and a feed screw nut through shrinkage fit in the technical field of mechanical engineering. The method adopts shrinkage fit for connection; the worm wheel in the electric cylinder is directly and fixedly connected with the feed screw nut: step one, a copper worm wheel is put into a resistance furnace, and the temperature of the resistance furnace is set to between 190 and 210 DEG C; step two, a temperature measuring sensor is put on the copper worm wheel for measuring the temperature of the copper worm wheel, and when the temperature of the copper worm wheel rises between 190 and 210 DEG C, the the inside diameter of a copper worm wheel hole is expanded to reach requirement of shrinkage fit; step three, the worm wheel is sleeved with the feed screw nut, and in the sleeve process, the clearance amount between the feed screw nut and the worm wheel is kept even; and step four, when the worm wheel enters a setting position, the