60results about How to "Reduced tipping moment" patented technology

The invention discloses a mandrel-holding device for tube mills, which relates to a tube mill. The invention solves the problem that since the prior holding device cannot effectively limit the waggle of a mandrel, equipment can be damaged. A moving mechanism comprises a slide way, a left slide carriage and a right slide carriage, the slide way is mounted on a base, and is respectively connected with the bottom slide grooves of the left and the right slide carriages, the left slide carriage is connected with the bottom ear ring of a transversely arranged oil cylinder through a pin shaft, and the threaded piston rod of the oil cylinder is connected with the bottom of the right slide carriage through a nut; holding parts are four rollers, two of the holding parts are assembled on the left slide carriage, the other two holding parts are assembled on the right slide carriage, and the rollers are assembled on the carriage in a way that the rollers are transversely staggered from each other and that parts of the longitudinal excircles are superposed; a left rack is mounted on the left slide carriage, a right rack is mounted on the right slide carriage, and the left and the right racks are engaged with a gear fixed on the central line, so that a synchronous centering unit is formed.

The invention discloses a direct-driven generator and a direct-driven generating set formed thereby. The direct-driven generator comprises a stator and a rotor, wherein the stator further comprises a stator core and a stator winding; the rotor further comprises a rotor core and permanent magnets placed in no less than one air slot of the rotor core; and the electromagnetic torque of the direct-driven generator comprises a permanent-magnet torque and a reluctance torque. The direct-driven generator synthesizes the characteristics of both a synchronous reluctance generator and a synchronous permanent-magnet generator, reflects a brand-new motor design and running concept, has the remarkable advantages of high power density, wide operation speed range, high efficiency, small size, light weight and the like, and greatly improves the competitive advantage of a direct-driven wind turbine when applied to the large-scale direct-driven wind turbine.

The invention relates to the technical field of speed reduction of pile drivers, in particular to a hypocycloid bidirectional output pile-driver speed reducer with an oil temperature alarming function. The hypocycloid bidirectional output pile-driver speed reducer comprises a box, motors, a cover plate and gear transmission parts and is characterized in that an oil temperature sensor is arranged in the box, and labyrinth vent hoods are arranged on the cover plate and each comprise an outer hood shell, a labyrinth shell and an exhaust pipe; the two motors are inversely connected with the lower side of the box, and shaft extension ends of the motors are connected with hypocycloid speed reducer bodies; the gear transmission parts comprise an outer meshing pair and an inner meshing pair; the outer meshing pair comprises a driving wheel, a distributing gear and outer teeth of a central circular ring; the inner meshing pair comprises inner teeth of the central circular ring, five quasi planet wheels and a central wheel; the central circular ring is connected with an outer sleeve, and the outer sleeve is supported in a central hole of the box through bearings; the outer sleeve is connected with a base plate, and a flange of the base plate is connected with a large sleeve of a pile driver; the central wheel is connected with an inner barrel, the inner barrel is supported in the outer sleeve through bearings, and the inner barrel is connected with a drill rod bushing. The hypocycloid bidirectional output pile-driver speed reducer has the beneficial effects that the dynamic state of the speed reducer can be mastered, the air pressure in the box and the air pressure outside the box are balanced, the motors are inversed to reduce the overturning moment of the pile driver, and thus the overturning accident probability is reduced.

A roller mill (1) for grinding granular materials such as cement raw materials, cement clinker and similar materials is described, said roller mill (1) comprising: a housing (3) surrounding a grinding table (7) , the grinding table (7) is rotatable about a vertical axis (5), said grinding table is supported by the machine bed (11) via a support (9); at least one roller (13), which is rotatable about a substantially fixed axis (12 ) rotates, said roller configured to interact with the grinding table (7); and a motor (15) comprising a rotor (16) firmly connected to the grinding table (7), and a stator (17). The roller mill is characterized in that the stator (17) constitutes an integral part of the support (9) of the grinding table (7), so that at least some of the load exerted by said at least one roller (13) on the grinding table (7) It is transmitted to the machine base (11) via the stator (17).