Device and method for rolling forming of spindle nose of vehicle axle of semi-trailer difficult to form
A semi-trailer axle and roll technology, applied in the direction of metal rolling, can solve the problems of reducing the output of rolling mills, increasing energy consumption, etc., and achieve the effects of avoiding secondary rolling, significant technological progress, and obvious economic benefits
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[0019] The present invention will be further described below in conjunction with the accompanying drawings.
[0020] like figure 1 As shown, the axle end rolling device mainly includes a roll box 1 (containing four rolls 3 symmetrically arranged in the circumferential direction of the shaft blank) and a shaft blank rotating box 2 (clamping and driving the shaft blank 5 to rotate). The non-feed end of each roll 3 is provided with two symmetrically distributed hydraulic units 4, through which the axial position of the rolls can be adjusted.
[0021] On the basis of the existing semi-trailer axle head rolling equipment, an axial adjustment device is added to each roll. like figure 2 As shown, axially movable bearings 8 are installed at both ends of each roller, and the axial movement of the rollers is realized by the hydraulic mechanism 4 . The hydraulic mechanism 4 is composed of a hydraulic cylinder 4a, a piston rod 4b, a base 4c of the hydraulic cylinder, and a hydraulic p...
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