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JPS6320107A |
PURPOSE: To attain high-speed response at a min. cost by using a hydraulic motor in place of an electric motor for screw down of rolling rolls. CONSTITUTION: A screw 8 for screw down is vertically rotatably and movably screwed to the top...
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JPS6311082A |
PURPOSE: To suppress the occurrence of dished or domed camber produce at the tip of material, by changing over a speed balance circuit in engaging to a load balance circuit after engaging. CONSTITUTION: A speed balance control circuit 13...
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JPS6310015A |
PURPOSE: To high accurately agree the holding position of upper and lower spindle heads with the roll rearranging position by offsetting upper and lower spindle head holders in the travel direction of a rolling stock by cylinders indepen...
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JPS631121B2 |
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JPS62296903A |
PURPOSE: To permit the follow-up shift of a spindle to a work roll and to simplify the construction of a spindle device by executing a roll shift while the spindle is held pressed to the work roll by a spindle shift cylinder. CONSTITUTIO...
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JPS62290393A |
PURPOSE: To reduce the partial charge of load and to get the reduced portion to charge to the other helper rolls, by lowering the rotating speed of a motor for driving a corresponding helper roll in charging abnormal load. CONSTITUTION: ...
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JPS62183904U |
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JPS62263808A |
In a transmission for driving the rolls of a rolling line having a number of rolling stands disposed one after another, a respective planetary transmission stage is provided at several output shaft (20) and forms the output rotational sp...
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JPS62179104U |
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JPS62169704U |
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JPS62159906U |
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JPS62142404U |
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JPS62197207A |
PURPOSE: To supply a rolling mill with a power corresponding to requirements for producing various kinds of products in small amount for one rolling mill, to remarkably reduce the equipment cost, and to contrive an energy saving by switc...
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JPS62187512A |
PURPOSE: To recede and to support a spindle by a simple structure during the time not in use of the spindle by supporting the spindle by a support table set on turntable of a spindle supporting device and turning the turntable around a p...
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JPS62123305U |
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JPS62118604U |
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JPS62118605U |
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JPS62115754U |
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JPS62148006A |
PURPOSE: To monitor the movement of the plummer block of a motor for driving a large-sized rolling mill at all times by using a position detector consisting of a stationary part to which a constant voltage is impressed and a moving a par...
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JPS62147124A |
In order to increase the transmittable torque of universal joints on cardan shafts, tube-shaped joint halves (2, 3) of annular cross-section are used instead of the conventional yokes, the bearings (4) for the journal cross (6) being arr...
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JPS6296907U |
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JPS6227881B2 |
A device for controlling the rotation of the working rolls in a tube rolling mill of the kind comprising a number of housings, each containing three working rollers normally in axial alignment on a single bearing structure, the rolls in ...
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JPS62127110A |
PURPOSE: To increase the yield of a product by setting the number of revolutions of a mill motor at steady operation time at the reference value and by multiplying each reference value by common constant, then by commanding the number of...
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JPS6224161B2 |
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JPS6282108U |
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JPS6222682B2 |
In a hot-rolling plant, a single roughing stand directly precedes a forward reversing coiler and is closely spaced therefrom. A set of two reversing finishing stands is arranged in direct succession between the forward reversing coiler a...
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JPS6272706U |
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JPS6297707A |
PURPOSE: To prevent accidents such as crack and failure of a work roll driving shaft system by a means for controlling accelerate bite, setting the gap opening degree of a gap mechanism at zero and biting a material to be rolled to rolls...
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JPS6297706A |
PURPOSE: To judge the life of a connecting mechanism and to reduce the man- hours for maintenance, inspection and replacement and cost by measuring a speed for starting the speed reduction of a main driving speed and a speed for closing ...
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JPS6289514A |
PURPOSE: To control a tension between stands and to obtain products having excellent dimensional accuracy and shape by dividing stand driving shafts into the number of stands and connecting the shafts with variable speed transmitters whi...
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JPS6277108A |
PURPOSE: To reduce a repair cost and to extend a service life to a driving shaft system by installing a braking device which absorbs some play in a part of a rolling mill driving system and making a rolling stock be bited by a rolling mi...
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JPS6215288B2 |
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JPS6268613A |
PURPOSE: To improve a rolling efficiency of a rolling mill by equipping common spindle couplings on a roll driving unit of the rolling mill to drive all of work rolls, intermediate rolls or reinforcing rolls. CONSTITUTION: The spindle co...
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JPS6264413A |
PURPOSE: To obtain a driving device for rolling mill which is excellent in strength and adjustable while its roll is rotated, by constituting the driving device in such a way that the rotation is once taken out to the outside of its pini...
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JPS6264403A |
PURPOSE: To make an installation smaller and simpler and to obtain the reduction rate of area equiv. to the reduction rate of area of the conventional continuous rolling mill train in a hot rolling line for rolling a bloom of steel produ...
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JPS6264402A |
PURPOSE: To prevent the buckling and slip of a material and to make an installation smaller and simpler in a hot rolling line for rolling a bloom of steel products to a billet by alternately arranging a driving horizontal rolling mill gr...
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JPS627858Y2 |
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JPS6234606A |
PURPOSE: To eliminate the need for a spindle and reduction gear and to simplify the entire part of a driving system for work rolls in the stage of rolling a rolling material with two pieces of work rolls having different circumferential ...
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JPS626127B2 |
A coupling is provided in which a coupling member and coupling sleeve of a rotary coupling for coupling a drive transmission to a rolling mill stand input shaft have mating taper threads which provide torsional rigidity and facilitate qu...
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JPS6221409A |
A roll block for rolling wire to final gauge in a high speed wire mill with a plurality of roll units alternatingly positioned at right angles to each other and behind each other, which are driven by two roll drive shafts running on both...
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JPS6213206A |
PURPOSE: To form a space for disposition of ancillary equipment for rolling, etc. around each driving shaft of upper and lower work rolls by extending the driving shafts from the respective roll end faces on the opposite sides with respe...
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JPS623815A |
PURPOSE: To improve the accuracy in the prediction of spindle torque and the productivity by determining the difference between the actual value and predicted value of the spindle torque, determining a correction value from the differenc...
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JPS623814A |
PURPOSE: To shorten the time for a roll change by providing a lock pin connecting to a roll in a roll coupling and constituting the same in such a manner that the pin is unlocked by the pressure fluid supplied therein by a remote operati...
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JPS61296911A |
PURPOSE: To improve an accuracy of estimating a spindle torque and to roll on optimum condition by obtaining a ratio of an actual value to an estimated value and correcting a pass schedule based on said ratio. CONSTITUTION: A torque mete...
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JPS61200602U |
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JPS61197330U |
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JPS61195803U |
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JPS61195802U |
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JPS61273279A |
PURPOSE: To raise the press-contact property of metallic sheets, to control a draft, and to adjust the sheet thickness ratio by driving one of a pair of rolling rolls, using the other as an idle roll, and making a different speed relatio...
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JPS61185505U |
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