35results about How to "Good centering performance" patented technology

The invention discloses an energy-saving ball mill which consists of a first hydrostatic bearing, a second hydrostatic bearing, a rotating body, hydrostatic bearing sealing covers, a local dust collector, a pinion and a transmission system, wherein hollow shafts at two ends of the rotating body are respectively arranged on the first hydrostatic bearing and the second hydrostatic bearing and are respectively covered by the two hydrostatic bearing sealing covers; the periphery of the rotating body is provided with a gearwheel meshed with the pinion; high pressure oil forms a lubricating oil film among the first hydrostatic bearing, the second hydrostatic bearing and the shaft neck of the hollow shaft of the rotating body, the rotating body can float, the lubricating oil film can be kept complete, and the liquid lubrication is completely realized; the bearing has high bearing capacity; when the rotating body generates small elastic bending deformation, the bearing bodies of the first hydrostatic bearing and the second hydrostatic bearing relatively rotate by a small angle around first pin shafts respectively, so that the thickness of the oil film is basically invariable along the axial direction; according to the corrugated lining plate in the rotating body, the abrasive action between the abrasive medium and mineral aggregate and between the mineral aggregate is enhanced; and moreover, according to the sealing covers and the local dust collector, the dust particles in the ball mill operating environment can be efficiently prevented from entering the operating space of the hydrostatic bearings.

The invention discloses a dislocated support-type centering guide for a cased well logger. The dislocated support-type centering guide for the cased well logger is characterized in that support arms, ejector rods, springs and socket sleeves are adopted to form a lever structure. When the inner diameter of a casing pipe is slightly changed, the support arms rotate, forces received by the springs are not changed much, and moment arms of the springs are nearly unchanged, so that support forces of rollers are nearly unchanged by the buffering and the compensation of lever mechanisms; all rollers are centripetally arranged, so that the centering performance of the centering guide is better; two sets of centering arms are dislocated in an axis direction, so that the centering guide is more stable, and can more easily overcome obstacles. A positioning boss located on a center rod is capable of preventing the phenomenon that the support arms at both sides of each roller are damaged due to the fact that the support arms are excessively close, and meanwhile, the positioning boss also plays a role of limiting the sliding socket sleeves. The dislocated support-type centering guide for the cased well logger disclosed by the invention is suitable for casing pipes of various specifications. By rotating threads between glands and slide carriages, the length of an inner gap between each socket sleeve and the corresponding gland is adjusted to control magnitudes of the forces of the springs, and therefore, the magnitudes of the support forces can be adjusted according to the size of the inner diameter of the casing pipe in actual logging operations.

The invention discloses a novel energy-saving mixer-mill. The novel energy-saving mixer-mill consists of a first hydrostatic bearing, a second hydrostatic bearing, a rotator, hydrostatic bearing sealing covers, a first local dust collector, a second local dust collector, a first gear, a first transmission system, a second transmission system, a third gear, a fourth gear, a first rolling bearing, a support of the first rolling bearing, a second rolling bearing, a support of the second rolling bearing, and a crushing and grinding component, wherein the shaft journals of hollow shafts at the two ends of the rotator are respectively placed on the first hydrostatic bearing and the second hydrostatic bearing and are covered by the two hydrostatic bearing sealing covers respectively; the first gear is connected with an output shaft of the transmission system; the second gear is arranged at the left end of a cylinder in a penetrating way; the first gear is engaged with the second gear; the crushing and grinding component is arranged in the rotator in the penetrating way; cage stirring shafts at the two ends of the crushing and grinding component respectively penetrate from the hollow shafts at the two ends of the rotator; and the crushing and grinding component is driven to rotate by the second transmission system. When the novel energy-saving mixer-mill works, the rotator floats, and the complete liquid lubrication is realized; the grinding effects between a grinding medium and a mineral aggregate and amoing the mineral aggregates are enhanced because of a corrugated liner plate in the rotator; and the mineral aggregate can be ground quickly by the crushing and grinding component.

The invention discloses an energy-saving mixer mill which is formed by a first static-pressure bearing, a second static-pressure bearing, a rotary body, static-pressure bearing sealing covers, a first partial dust collector, a second partial dust collector, a first gear, a first transmission system, a second transmission system, a third gear, a fourth gear, a first rolling bearing and a support thereof, a second rolling bearing and a support thereof, and a crushing grinding part, wherein shaft necks of hollow shafts at the two ends of the rotary body are respectively placed on the first static-pressure bearing and the second static-pressure bearing, and are respectively covered by the two static-pressure bearing sealing covers; the crushing grinding part is arranged in the rotary body in a penetrating manner; stirring cage shafts at the two ends of the crushing grinding part respectively stretch out from the hollow shafts at the two ends of the rotary body; and the crushing grinding part is driven by the second transmission system. In a working process, the rotary body is floated by the static-pressure bearings to ensure that a lubricating oil film is complete and complete liquid lubrication is realized; the collision between the crushing grinding part and mineral aggregates, the grinding between the crushing grinding part and the mineral aggregates, and the grinding between the mineral aggregates are enhanced under the common effect of corrugated linings in the crushing grinding part and the rotary body; and therefore, the rapid fine grinding of the mineral aggregates can be realized.