Abstract: Provided is a jaw crusher driving device in which a driving torque can be transmitted reliably to a rotation driving shaft to perform a crushing operation by strongly fixing a hydraulic pressure motor between a body frame of a jaw crusher and a flywheel. The jaw crusher includes a fixed tooth, a movable tooth, a rotation driving shaft rotatably supported on a body frame, and a pair of flywheels provided in the rotation driving shaft. The driving device includes: a hydraulic pressure motor in which a rotation shaft portion can rotate in relation to a motor body when pressure fluid is supplied; a connector for connecting one flywheel of the pair of flywheels and the rotation shaft portion; and a torque arm provided between the body frame and the motor body so as to prevent the motor body from rotating about an axis of the rotation driving shaft.

Abstract: Provided is a jaw crusher driving device in which a driving torque can be transmitted reliably to a rotation driving shaft to perform a crushing operation by strongly fixing a hydraulic pressure motor between a body frame of a jaw crusher and a flywheel. The jaw crusher includes a fixed tooth, a movable tooth, a rotation driving shaft rotatably supported on a body frame, and a pair of flywheels provided in the rotation driving shaft. The driving device includes: a hydraulic pressure motor in which a rotation shaft portion can rotate in relation to a motor body when pressure fluid is supplied; a connector for connecting one flywheel of the pair of flywheels and the rotation shaft portion; and a torque arm provided between the body frame and the motor body so as to prevent the motor body from rotating about an axis of the rotation driving shaft.

Abstract: A crusher bucket includes a bucket body (70) and a crushing lid (76) provided on the bucket body. The crushing lid is capable of being opened and closed relative to the bucket body. A material feed rate adjusting mechanism is provided on the bucket body (70) and/or the crushing lid (76) to allow raw material scooped up into the bucket body (70) to be fed into a crushing chamber (70a) in a predetermined amount at a time. Hammers (74) are disposed on the outer periphery of a rotor driven rotationally by a power drive device to strike and break the raw material fed into the crushing chamber (70a). A repulsion plate (77) is provided on the crushing lid (76) to collide with the raw material struck by the hammers (74). The material feed rate adjusting mechanism is preferably a weir (72) provided on the bottom wall of the bucket body (70).

Abstract: When material is thrown in a hopper, material of small particle diameter is loaded in between breaking teeth on two rotors and transferred toward a crushing space between the rotors by rotation. The material of small particle diameter is pressed by compression teeth on one rotor against cutting teeth on the other rotor, thereby causing compressive crushing. When material of small particle diameter clogs the crushing space and stays therein, the cutting teeth cut the material to form a gap. The breaking teeth on the two rotors move odd-shaped material or the like toward the crushing space by similar action. Consequently, the odd-shaped material assumes such a posture that it is caught between the breaking teeth, and is crushed by the breaking teeth or cut by the wedge effect.

Abstract: In order to simply and easily treat drainage produced by cutting a face to be cut such as concrete without discharging the drainage on a road, a floor of a building, or the like, the concrete cutting machine of the present invention comprises a cutting mechanism for cutting the face by means of a rotating blade covered by a cover, a water supply mechanism for supplying and jetting water cooling to the rotating blade, and a collecting mechanism for collecting the drainage produced inside the cover by the jetting of the water cooling when the face is cut by the rotating blade. Further, in the collecting mechanism, the drainage produced inside the cover is sucked through a sucking portion provided on the lower end periphery of the cover to a collecting portion by a sucking operation of a suction blower so that the drainage in which air is removed at the collecting portion is discharged by a pump for collection.

Abstract: When material is thrown in a hopper, material of small particle diameter is loaded in between breaking teeth on two rotors and transferred toward a crushing space between the rotors by rotation. The material of small particle diameter is pressed by compression teeth on one rotor against cutting teeth on the other rotor, thereby causing compressive crushing. When material of small particle diameter clogs the crushing space and stays therein, the cutting teeth cut the material to form a gap. The breaking teeth on the two rotors move odd-shaped material or the like toward the crushing space by similar action. Consequently, the odd-shaped material assumes such a posture that it is caught between the breaking teeth, and is crushed by the breaking teeth or cut by the wedge effect.

Abstract: A multiaxes roll type of crusher comprises four rolls. The four rolls respectively have teeth for directly crushing materials. There would be virtually 6 pairs of rolls in mathematically. There are really at least three relations given for crushing. Raw materials are crushed with a first crushing-relation to be of smaller size. Such crushed materials are secondly crushed with a second crushing-relation and a third crushing-relation to be of still smaller size. The first roll and the second roll can rotate in reversely opposite directions. The third roll and the fourth roll can rotate in reversely opposite directions. The reverse rotations cancel the crushing-relations. The flow of the crushed materials are controlled by a flow controlling means, which opens and closes the path between the third roll and the fourth roll. The opened flow controlling means does not obstruct the flow of foreign materials between the third roll and the fourth roll.

Abstract: A moving point involved in a movable teeth plate of an eccentric jaw crusher rotates on a closed loop, being called hysteresis curve in the specification. An angle between a major axis of the curve and the surface of a fixed teeth plate is a significant factor for crushing. The inventor found the fact that the alternation of the angle enables crushing ability to be rich. The angle is incontinuously varied. One of the positions at which a toggle plate is rotatably supported is selected. A larger angle is suitable for crushing harder materials, concrete for example, a small angle being suitable for soft materials, asphalt, for example. One self moving crusher can crush harder and soft materials at the same field where buildings are destroyed, or roads are repaired.

Abstract: A moving point involved in a movable teeth plate of an eccentric jaw crusher rotates on a closed loop, being called hysteresis curve in the specification. The motion of rotation has a top side dead point and a bottom side dead point on one cycle. The normal rotation in the normal direction enables harder materials, concrete, for example to be crushed at high efficiency, the reverse rotation in the reverse direction enabling soft materials, asphalt, for example to be also crushed at high efficiency. One self moving crusher can crush harder and soft materials at the same field where buildings are destroyed, or roads are repaired.

Abstract: A swing type crusher capable of efficiently breaking a non-rigid object into pieces of small particle size. A jaw crusher breaks a lump of asphalt cast into a V-shaped crushing space (V) which is defined between a fixed tooth plate (26) and a movable tooth plate (25), and which periodically changes its volumetric capacity. A toggle plate (12) is interposed between a body (1) and the movable tooth plate (25) to swingably support the movable tooth plate (25). A support member (9) which swingably supports the body-side end portion of the toggle plate (12) is vertically movably secured to the body (1). By vertically moving the support member (9), the spacing between the fixed tooth plate (26) and the movable tooth plate (25) is narrowed (widened), and at the same time, the stroke of the movable tooth plate (25) is reduced, thereby efficiently breaking a non-rigid object, e.g. waste asphalt, into small pieces, and reusing them immediately.

Abstract: A combination of anvils in a vertical shaft-type impact crusher with deadstock spaces enables the extension of life of the tips mounted on a rotor. A combination of hard tips with softer tips overcomes the inconsistency in which the hard tips that are prone to wear by chipping but are erosive resistant to collision with stones of a large grain size accelerated by the rotor, while the softer tips are resistant to chipping-wear but are ordinarily prone to erode by collision with stones of a smaller grain size accelerated by the rotor. Crushers having anvils and dead stock spaces, have pairs of symmetrically arranged hard tips and softer tips mounted on a reversibly rotatable rotor. The pairs of tips are located in symmetry with respect to each of a number of angularly related centerlines extending radially from the rotational axis of the rotor.

Abstract: A rotor blade structure for a vertical shaft impact crusher which enables the lifetime of blades to increase and facilitates maintenance. In the early stage of wear, it takes place by collision between a blade body (2) of each blade (1), particularly teeth (4) provided thereon, and raw stone. Accordingly, in this stage, rods (9) buried in the blade body (2) do not collide with raw stone. As the wear progresses, the rods (9) become exposed. After the rods (9) have been exposed, raw stone also collides with the rods (9), which have a higher hardness than that of the blade body (2). That is, the blade (1) does not subject the rods (9) to wear from the beginning of use of it, but allows the rods (9) to be subjected to wear after the blade body (2) has become worn to a certain extent.

Abstract: A jaw crusher designed to break a non-rigid object, e.g., asphalt, into pieces of desired size without causing the object to be undesirably mashed by changing the motion of a movable tooth plate relative to a fixed tooth plate. The jaw crusher includes a fixed tooth plate (16), a swing jaw (8), a movable tooth plate (15), and a toggle plate (10). Motion of a lower end portion of the movable tooth plate (15) which is on an approximately circular locus satisfies the conditions that the relative angle between a straight line connecting the lower and upper end points of the approximately circular locus and the fixed tooth plate (16) is not smaller than 20.degree., and that the distance between the lower and upper end points is not shorter than 50 mm.

Abstract: A vertical shaft impact crusher including a housing, a vertical rotating shaft (11) rotatably provided in the housing and rotated at a high speed, a rotor (10) provided on the upper end of the vertical rotating shaft (11) to discharge centrifugally an object of crushing, which is cast into the housing, to the outer periphery thereof, and an anvil support frame (60) disposed in the housing to surround the outer periphery of the rotor (10) and provided with anvils (18) for collision with the object of crushing discharged from the rotor (10). The anvil support frame (60) is movable up and down in a direction parallel to the central axis of the vertical rotating shaft (11).

Abstract: A jaw crusher with a pass-through preventing device which prevents a flat plate-shaped object from passing through without being crushed. Also disclosed is a jaw crusher with a tooth plate structure which is capable of effectively crushing a non-rigid object, for example, a lump of asphalt, without causing such an object to stick to the area between a cheek plate and a fixed tooth plate or a movable tooth plate. The jaw crusher comprises a plurality of forks which are provided at the lower end of a crushing space to prevent a plate-shaped object from passing through the crushing space without being crushed, and a fork shaft which is provided with one end of each fork and which is rotatably provided on the crusher body. The movable tooth plate is provided with cutting projections. A plate-shaped object is first broken by the cutting projections and then crushed by intermediate projections.

Abstract: A centrifugal refining crusher for simultaneously crushing and refining feed material in which the feed material such as ores and rocks is thrown out into housing around rotor making use of the centrifugal force created by the rotation of the rotor. A further second rotor is provided under an opening for dropping the feed material formed in between the first housing and the first rotor, a second housing is provided around the second rotor, anvils are provided on the first housing mainly to crush the feed material, and a deadstock portion is formed by the material in the second housing mainly to refine grain shape of the broken feed material.