Explosion separation structure for shaft
An explosion-proof, shaft-use technology, applied in the shape/pattern/structure of the magnetic circuit, rotating parts of the magnetic circuit, etc., can solve the problems of damage to the explosion-proof surface, long processing cycle, high price, etc., to reduce losses and improve efficiency. , time-saving effect
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[0009] Such as Figure 1 1 is the bearing inner cover; 2 is the flameproof sleeve; 3 is the shaft.
[0010] Assume that the diameter of the bearing is d; the outer diameter of the shaft 3 at the joint between the flameproof sleeve 2 and the shaft 3 is d+3~5mm; the outer diameter of the flameproof sleeve 2 is D, and the length is L, and L ≥ bearing inner cover 1 and The length of the mating surface of axis 3.
[0011] The first choice is to process the outer diameter of the shaft 3 at the joint between the explosion-proof sleeve 2 and the shaft 3 to d+3~5mm, the tolerance is s6, the length is L, and the outer diameter of the flame-proof sleeve 2 is reserved for processing, and the inner diameter is d+ 3 to 5mm, tolerance H7, after the rotor is assembled, the flameproof sleeve 2 is shrunk onto the shaft 3, and processed until the outer diameter of the flameproof sleeve 2 is D.
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