Domestic Shield Machine Main Drive Reducer

The “domestic shield machine main drive reducer” independently developed by Handan City Planetary Construction Machinery Co., Ltd. passed the scientific and technological achievements appraisal organized by the Ministry of Industry and Information Technology.

The appraisal committee carefully reviewed the project materials, heard technical reports, research reports, usage reports, test reports, etc., conducted inquiries about relevant issues, and examined the operation of the reducer on site. The experts of the appraisal committee unanimously held that the shield drive main drive reducer independently developed by Handan City Planetary Construction Machinery Co., Ltd. has reached the international advanced level and has agreed to pass the results appraisal.

The shield drive main drive reducer developed by Handan City Planetary Construction Machinery Co., Ltd. has broken through new technologies such as gear bearing compounding, input spline preset over-limit safety device, and optimized drive oil release. The company has made significant innovations in material selection, gear module and size optimization, bearing selection, and cooling system improvements. It has been successfully applied to the terminals of Terminal 1 and Terminal 2 of Chongqing Jiangbei Airport. The successful application of the equipment in China has solved the problem of high damage rate of the reducer in the tunnel, railway and national defense projects during the construction of the shield machine in China, and has provided strong support for the production and manufacture of the shield machine in China.