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Design criteria of copper worm and worm gear

Pubdate:2018-08-11 10:47:25   Hits:3513   【Large Moderate Small
Design criteria of copper worm and worm gear

When the angle of intersection of copper worm gear and worm is equal, it must be guaranteed, and the spiral direction of worm gear and worm must be the same.

Copper worm gear and worm gear are used in the case of two axles crossing 90 degrees, but they are neither parallel nor intersected. In worm gear transmission, the worm is the active part and the worm wheel is the passive part.



Copper worm gear is widely used for crushing materials in pharmaceutical, chemical and food industries. Mainly used for reducers, cranes, crystal ball mills, lawn mowers, lifts, gates, boat machines, automatic doors, coal cake machines, woodworking machinery, harvesters, dyeing machines, shredders and so on. Features: High-speed rotary knife is used in the crushing chamber. The air volume in the chamber is large, and the chamber is not easy to heat. The utility model has the advantages of smooth operation, easy disassembly and cleaning, low noise and good crushing effect.



The parameters of the worm gear are determined according to the worm, because the worm gear hob used in worm gear machining must be consistent with the parameters of the worm. The axial modulus and the diameter of the indexing circle of the copper worm gear and worm are standardized, and the standard series can be found in the Mechanical Design Manual. The spiral angle and the structural dimension of copper worm gear and worm can be calculated by modulus and indexing circle diameter. The material selection of copper worm wheel should not only care about wear resistance, but also whether the material has good lubricity. Because the scroll and worm gear pair has relative sliding in transmission, the magnitude of sliding friction determines the efficiency of the reducer, which is also one of the indicators to determine the quality of the reducer. Good lubrication materials can reduce friction, reduce friction and heat, can improve the working conditions of the reducer, thereby reducing the wear of worm gear and worm.



In addition, the wear resistance of the material is too high will reduce the running-in performance of worm gear and worm pair, in fact, increased the difficulty of manufacturing. The wear resistance of metal materials is generally proportional to the surface hardness of the metal, which means that the harder the object is, the more wearable it is. Copper worm grinder main uses: widely used in pharmaceutical, chemical, food and other industries crushing materials. Features: High-speed rotary knife is used in the crushing chamber. The air volume in the chamber is large, and the chamber is not easy to heat. The utility model has the advantages of smooth operation, easy disassembly and cleaning, low noise and good crushing effect. Working Principle: The machine adopts high-speed rotating knife of wind wheel type. The fixed knife is impacted and sheared and grinded. When crushing, a strong air flow is produced in the chamber. The heat and products of the crushing chamber flow out of the screen together. The size of the particle is obtained by changing the screen. Copper worm gear and worm gear are used in the case of two axles crossing 90 degrees, but they are neither parallel nor intersected. In worm gear transmission, the worm is the active part and the worm wheel is the passive part. Copper worm gear and worm drive has the following characteristics: 1) compact structure, and can obtain a large transmission ratio, the general transmission ratio is 7-80. 2) Working smoothly and noiseless 3) Large transmission power range 4) Self-locking 5) Low transmission efficiency, worm gears are often made of non-ferrous metals.

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