摘要:
An apparatus for substantially eliminating deflection of cantilevered work roll shafts and work rolls of a cantilevered type rolling mill comprising adjustable work roll support rollers which rotatably brace work rolls at points approximately 180 angular degrees from the metal stock and work roll contact area.
摘要:
A method of taper rolling for producing leaf springs and the like, including the step of reducing the width of the deformable blank, between a pair of auxiliary rolls, to a width somewhat less than the required final width so that during a final ''''pass'''' between a pair of main rolls the blank returns to the required final width as it is brought to the required taper form.
摘要:
A rolling apparatus has a frame and a first eccentric journal sleeve mounted on the frame, defining a first axis, and having axially inner and outer ends. A first shaft journaled in the sleeve has respective inner and outer ends at the first-sleeve inner and outer ends. The first-shaft outer end projects axially from the frame and carries a workpiece-deforming first roller. A rocker is displaceable transversely of the axis on the frame and carries a second eccentric journal sleeve defining a second axis generally parallel to the first axis and having axially inner and outer ends. A second shaft journaled in the second sleeve has respective inner and outer ends at the second-sleeve inner and outer ends. The second-shaft outer end also projects axially from the frame and carries a workpiece deforming second roller forming with the first roller a workpiece-receiving nip. Respective first and second drive gears engaging the respective first and second shafts between the respective ends rotate same about the respective axes. an actuator having a radially displaceable element urges the rocker radially toward the first axis and for holding the first and second axes at a predetermined spacing from each other at the outer ends.
摘要:
IN AN APPARATUS FOR SHAPING METAL BARS, PARTICULARLY CASTINGS IMMEDIATELY SUPPLIED FROM A CONTINUOUS CASTING PLANT, COMPRISING A SERIES OF ROLLING STANDS IN TANDEM ARRANGEMENT CONTAINING PAIRS OF ROLLS, IN WHICH THE ROLLS ARE ARRANGED BY MEANS OF INSERTS, EASY AND ACCURATE ALIGNMENT OF THE ROLL GAPS IN THE DIRECTION OF ROLLING IS ACHIEVED ACCORDING TO THE INVENTION BY PROVIDING FOR EACH ROLL OF A PAIR OFF ROLLS BEING ADJUSTABLE AWAY FROM AND TOWARDS THE ROLL PASS AXIS IN THAT THE TWO INSERTS OF A PAIR WHICH ARE SLIDINGLY ARRANGED WITHIN COMMON VERTICAL OR HORIZONTAL GUIDE MEANS, ARE INTERCONNECTED AND URGED AGAINST INTERPOSED WEDGES BY HYDRAULIC MEANS EXERTING A PRESSURE EXCEEDING THE MAXIMUM ROLL PRESSURE THAT MAY OCCUR, SAID WEDGES BEING INTERCONNECTED TO BE RELATIVELY MOVABLE BY A THREADED SPINDLE SO AS TO CHANGE THE DISTANCE BETWEEN SAID INSERTS AND THEREBY THE ROLL GAP.
摘要:
DEVICE ALLOWING FOR THE VARIATION OF THE STRESSES EXERTED UPON THE WORKING CHOCKS OF ROLLERS, WITH THE AID OF JACKS DISPOSED OUTSIDE THE SUPPORT HOUSING OF THE SAID ROLLERS AND MEANS FOR TRANSMITTING THE STRESSES TO THE CHOCKS BY MEANS OF APPROPRIATE AXLES AND ACTUATING ARMS CONNECTED TO THE JACKS.
摘要:
An assembly for producing a finished shape for a rod after the last rolling stage of a multi stand steel mill. This apparatus provides an operation for correcting minor surface irregularities and shape distortion of the rod as it exits from the finishing roll stand. The apparatus consists of four rollers mounted in an assembly which resembles a roller entry guide except that the rollers are capable of producing changes in shape of a work product passing therethrough. The orientation of the roller axis is slowly and constantly changed to prevent wear distortion of the rollers which may result when the rollers are required to roll a malformed product from fixed roller axes. The rollers may be driven in some circumstances.
摘要:
A pair of roll support shafts which are supported by bearings provided at both ends of the roll support shafts, wherein, between the bearings, toothed drums are mounted on the roll support shafts or the circumference of the roll support shafts is provided with toothings. Outside of the bearings, roll disks can be mounted on the ends of the roll support shafts, wherein one of the toothed drums meshes with a drive pinion mounted on a parallel drive shaft and the other toothed drum meshes with a loosely mounted intermediate pinion, wherein the drive and the intermediate pinion also mesh with each other. The roll support shafts are each supported in a free end of a single-armed tumbler lever which is swingable about the longitudinal axis of the drive pinion or the intermediate pinion, wherein the tumbler levers are supported relative to the roll stand by means of adjustable and securable rigid or elastic support members and the free ends are supported relative to each other through elastic members.