Abstract: In an operation control method capable of securely reducing required motor capacity and power consumption, a threshold based on load size is preset, and after a driven or rotated state of each of two rotating shafts becomes steady, and if the load size is smaller than the threshold, conveyance of a rotating drive to one of the two rotating shafts is stopped and the one of the two rotating shafts with the conveyance of the rotating drive stopped is interlocked and rotated together with the other of the two rotating shafts by vibration generated by a rotating drive of the other of the two rotating shafts, and if the load size becomes larger than the threshold, the conveyance of the rotating drive to the one of the two rotating shafts with the conveyance of the rotating drive stopped is started so as to drive or rotate the two rotating shafts.

Abstract: In a vibratory sieving machine having two rotary shafts provided with eccentric spindles disposed parallel to each other, motors are disposed so as to reduce the capacity or power consumption of the motors required in the vibratory sieving machine, and to drive the two rotary shafts independently, and a rotary drive control mechanism is configured such that either one of the two rotary shafts can be started upon a start, while the other of the two rotary shafts can be started after a rotary drive state of the one of the two rotary shafts is transferred to a stationary state.

Abstract: A detaching method of a filling member and the filling member to be used therein are provided, in which the filling member loaded in a space of a counterbore hole or a hole of a bolt head may be detached easily if required to remove a bolt, a prepared hole is made in the filling member by means of a drill, and female threads are formed in the filling member by a tapping process, and an extracting force is applied to the filling member by way of the female threads engaged with a rotating tap, so that the filling member can be pulled out of the space of the counterbore hole.

Abstract: A regenerated cutting blade to be mounted and used in a shearing type grinder. The cutting blade includes a fixed part and a blade tip projecting outward from this fixed part, in which the blade tip has a leading edge pointed toward the rotating direction. Side edges 110 on the lateral side outer periphery including the blade tip, the leading end edge and the side edges are regenerated and formed by build-up welding. The lateral sides are provided with slip preventive build-up welding parts 111, 112, 113 extending from the side edges 110 toward the central side of its rotation or the central direction, and the build-up welding parts are formed by three regenerating processes.

Abstract: A regenerating method of a cutting blade to be repaired includes a chamfering step of chamfering a leading edge part and side edge parts of a cutting blade, a build-up welding step of welding a build-up on the chamfered leading edge part and the chamfered side edge parts, and a processing step of regenerating and processing build-up welding portions of the cutting blade into a specified shape of the leading edge part and the side edge parts, and of the build-up welding portions formed on the side edge parts, such that a dimension L1 of a lateral build-up weld zone is 1 to 3 times a dimension L2 of an outer build-up weld zone.

Abstract: A crushing drying device includes an object-to-be-treated supply port from which an object is supplied into a main body, a crushing portion for crushing the object by hammers rotated on a drive shaft, and a classifying portion having a space for circulating the object to be treated at a position away from the crushing portion, the crushing portion has a dry gas supply port from which the heated air is supplied in a predetermined direction along an inner surface of the device main body, and the classifying portion has discharge portions from which the crushed object is discharged together with the heated air, and deviation plates for changing a flow of the object transferred to the classifying portion, so that the crushing drying device is one machine.

Abstract: A regenerating method of a cutting blade to be repaired includes a chamfering step of chamfering the leading edge part and the side edge parts of a cutting blade, a build-up welding step of welding a build-up on the chamfered leading edge part and side edge parts, and a processing step of regenerating and processing build-up welding portions of the cutting blade into a specified shape of leading edge part and side edge parts, and of the side build-up welding portions formed on the side edge part, dimension L1 of a lateral build-up weld zone is 1 to 3 times of dimension L2 of an outer build-up weld zone.

Abstract: A crushing drying device includes an object-to-be-treated supply port from which an object is supplied into a main body, a crushing portion for crushing the object by hammers rotated on a drive shaft, and a classifying portion having a space for circulating the object to be treated at a position away from the crushing portion, the crushing portion has a dry gas supply port from which the heated air is supplied in a predetermined direction along an inner surface of the device main body, and the classifying portion has discharge portions from which the crushed object is discharged together with the heated air, and deviation plates for changing a flow of the object transferred to the classifying portion, so that the crushing drying device is one machine.

Abstract: A regenerating method of a cutting blade to be repaired includes a grouping step of dividing the cutting blade differing in the degree of abrasion of the leading end part and side edge parts, into groups A to E depending on the degree of abrasion, a chamfering step of chamfering the leading edge part and the side edge parts of the cutting blade belonging to groups A to D, to positions passing reference lines K1, K2, - - - , K4 built up to a specified height determined in each group, a build-up welding step of welding a build-up on the chamfered leading edge part and side edge parts, and a processing step of regenerating and processing the build-up welding portions of the cutting blade into a specified shape of leading edge part and side edge parts.

Abstract: In order to finely crush a shredable object, two rotational shafts for supporting cutting blades are provided in parallel in the transverse direction inside a shredder main body. The cutting blades that are provided with a plurality of cutting portions protruding from outer peripheral thereof are disposed in the shaft direction of the two rotational shafts so that these cutting portions engage with each other. A throw-in port for a shredable object is provided in one end portion of the rotational shafts in an upper portion of the shredder main body in the shaft direction. A discharge port for the shredable object is provided in the other end portion of the rotational shafts in a lower portion of this shredder main body in the shaft direction.

Abstract: In order to finely crush a shredable object, two rotational shafts for supporting cutting blades are provided in parallel in the transverse direction inside a shredder main body. The cutting blades that are provided with a plurality of cutting portions protruding from outer peripheral thereof are disposed in the shaft direction of the two rotational shafts so that these cutting portions engage with each other. A throw-in port for a shredable object is provided in one end portion of the rotational shafts in an upper portion of the shredder main body in the shaft direction. A discharge port for the shredable object is provided in the other end portion of the rotational shafts in a lower portion of this shredder main body in the shaft direction.

Abstract: A shredder comprising a frame, at least two rotatable shafts supported in parallel by the frame, a plurality of cutting blades, each of the blades including a mount which is fixed to one of the shafts and has an outer peripheral side, and a number of tip pieces, each tip piece being fixed to the peripheral side of the mount, and a plurality of spacers mounted on each of the shafts alternately with the blades such that the spacers on each of the shafts are radially aligned with the blades on the other shaft.