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In the packaging of medium and large motors, large motors are large in size and light in weight. The total weight is generally about 2-10T. The total volume is usually 2X1X1.5M-4X3X3.5M, and the total length of the asynchronous motor is larger than 4M. Large synchronous motors The total width exceeds 3M and the total height is higher than 3.5M. Past and present traditional packaging methods are shipped in large-frame, sliding wooden boxes. Each box uses less wood 0.4M 3 , large sliding box about 1.2M 3 . Annual mass production of medium and large-sized motors consumes large amounts of wood. As the wood is drastically reduced and prices are rising day by day, in order to save wood, change the current form of packaging, and reduce the packaging cost of medium and large motors, this paper proposes the following: Several wood packaging methods.
Soft packaging The so-called "flexible packaging", ie, tarpaulin packaging, uses a magnesia enamel chassis, the motor is bolted to the chassis, the motor shaft extensions, various junction boxes and temperature measuring instruments are tightly tied with a sash cover, and local reinforcement packaging is performed. The plastic film and the rag cloth are then snapped and used as a purse, and the woven cloth is nailed on the chassis to form a flexible soft leather package.
Magnesite is made into a sledge type, and the two sledge legs are the same width as the motor's bottom leg. Four bolts are fixed on the motor and two forklift holes are provided near the bottom of the sledge leg near the fixing bolt. The hole spacing should not exceed The total length of the motor base plate. Both sides of the sledge leg are equipped with a 45°C groove to facilitate the use of a rolling bar. In order to make the chassis have enough strength and save material, the chassis can be made of the upper plane except the sledge feet, with the structure with a ribbed structure below.
The cloth cover can be made of canvas or color strips to prevent rain, and the cloth cover must be provided with four lifting holes so that the hooks can be lifted through the lifting holes to hold the main body of the motor and the packages can be reliably removed. Lifting holes need to be aligned with the main hanger of the motor. The three sides of the lifting hole cover are made of nylon-bonded “Nylon adhesive locks†to facilitate opening and closing operations and protection against sand and dust rain.
Sliding awning bag The so-called "climbing awning bag" is made of Magnesite or chassis, the motor is bolted, the motor, accessories and random file bags are covered together with plastic film, and the angle steel frame is fixed on the chassis. On the top, the cover is covered with a cloth cover, and the periphery of the bottom of the cover cloth is fixed on the bottom frame of the magnesite crucible or the bottom frame of the frame.
Magnesite chassis structure can be similar to the above flexible package chassis.
In the channel steel chassis, two sledge legs are equipped with two channels of steel and welded angle steel to assist the sliding legs. Two forklift holes are left near the screw hole of the motor foot, and the two ends of the auxiliary skid leg and the forklift hole are open at 45°. Roller shift movement.
Shelving: Welded four steel frames with angles, welded several vertical and horizontal stiffeners on each side of the frame.
è‹« Cloth cover: According to the size of the awning frame, the rag cover is matched. To prevent the sling from being damaged when lifting, in addition to the lifting hole at the top of the hook, four hooked operation holes are required on the side. The lifting hole and the hook operation hole cover are provided with a nylon-bonded “stick lockâ€.
Sledge iron box packaging The so-called “sledge iron box packaging†is a semi-closed or fully enclosed package consisting of a channel steel climbing cable telegraph chassis and an angle bar frame welded spot welded steel mesh or iron skin box. The inside of the box is covered with a dark plastic cover to cover the motor and accessories and random documents.
Chassis: Since the sledge steel box packaging is a semi-closed package, a channel steel welding chassis or a diamond chassis can be used.
Box: Angled steel welded frame, spot welded steel mesh or old steel sheet of silicon steel sheet, box with four hook lifting holes, and four hook operation holes on the side. A magnetic iron bar is provided at the lower edge of the hinged hole cover so as to facilitate opening and closing of the hole cover like a refrigerator door.
Frame: The frame is similar to the upper frame frame. The use of steel net is to reduce the weight and cost, the use of silicon steel packaging scrap iron is considered that the general motor plant has this waste material can be beneficial to waste and reduce costs, cut before opening the welding mouth and roll flat, the packaging box can Spray paint for aesthetic treatment.
Concluding remarks The woodless packaging of several medium and large-sized electric motors of the creative industry is not necessarily the optimal solution. It is intended to attract valuable attention. In the light of the growing timber supply, let us adopt more and better economical and practical wood-free packaging forms. (Fu Qiyi, Shao Lanqing, Li Jiji) (From "Shanghai Packaging")
With wood packaging materials, there has been a long history, the traditional transport packaging of electric motors is the use of frame sliding wooden boxes, wood consumption. Since China's flood disaster in 1998, forest timber has been limited to cutting, and further conservation of packaging timber is imperative. This is the need of the ecological environment and also the requirements of the economic benefits of enterprises. In today's industrial development, there are conditions to broaden the logging and packing measures. For example, in the case of land and wood, the so-called soil is magnesite and wood and steel.
December 24, 2023