48results about How to "Reduce overhang length" patented technology

An electrical machine includes an armature and at least one field magnet arrangement separated by a gap from each other. The armature and / or the field magnet arrangement include a plurality of coils. Each coil includes conductive body sections. The body sections of the coils are joined electrically by conductive end sections. At least one of the end sections of at least one coil of the armature is tilted in a direction away from the armature towards the field magnet arrangement and / or at least one of the end sections of at least one coil of the field magnet arrangement is tilted in a direction away from the field magnet arrangement towards the armature. The electrical machine may be used in a wind turbine to generate electrical power.

The invention belongs to the drilling machine field, and in particular relates to a radial drilling machine. A workbench of the radial drilling machine is fixedly arranged at one end of a base, an internal column is fixedly arranged at the other end of the base, an external column is sleeved on the internal column, a rocker arm sleeve is arranged on one end of a rocker arm, the rocker arm sleeve is sleeved on the outer side of the external column, the rocker arm sleeve and the external column form a lead-screw-and-screw-nut fit structure through a rocker arm lifting lead screw and a lifting screw nut, which are used in a matched manner; a column clamping device and a rocker arm lifting safety device are driven by a gearbox body arranged on top of the external column; an opening is formed in the outer end part of the rocker arm sleeve on one end of the rocker arm, a rocker arm clamping device is arranged at the end part, busbars are respectively arranged on the upper and lower sides of the rocker arm, and the busbars adopt the form of hyperbolic curve; a spindle gearbox is mounted on a rocker arm guide rail of the rocker arm, and a main transmission electromagnetic clutch is arranged in the spindle gearbox. With the adoption of the radial drilling machine, the purposes of increasing performance, simplifying structure, facilitating manufacturing, usability, saving energy and facilitating operation are realized.

A turbine blade has a root portion, a platform and an aerofoil, the aerofoil is mounted on the platform and is formed by a pressure side wall and a suction side wall and has an outer surface, the pressure side wall and the suction side wall meet at a leading edge and a trailing edge, the aerofoil has an axial chord length, the suction side wall defines part of the radially outward surface of the aerofoil, the suction side wall defines an overhang, the overhang has a maximum overhang length that is between 5% and 20% of the axial chord length of the blade and is located between 5% and 50% of the suction surface length from the leading edge.

The invention discloses a gob-side entry driving surrounding rock control method using remaining small pillars. The method includes: distributing blast holes of different angles and depths in a working face conveying chute during extraction on an upper region working face, preforming a weak face in a certain area of a basic roof to damage completeness of a basic roof rock stratum by deep hole presplitting, and allowing a suspension arch of the basic roof to break at predetermined positions under the action of roof pressure after extraction of the working face. Therefore, the length of the hanging arch of the lateral basic roof of a gob is shortened, gob lateral abutment pressure is reduced, roadway pressure is relieved during gob-side entry driving in a lower region using remaining small pillars, and maintenance of a roadway is facilitated.

The invention provides a bamboo latticed shell hollow sphere connecting joint welded with steel insertion sheets and an installing method. The bamboo latticed shell hollow sphere connecting joint comprises M steel insertion sheets, M bamboo rod pieces, M or M-1 reinforced steel sheets, a hollow sphere and 2M bolts, wherein a circular-arc gap is reserved in one end of each steel insertion sheet; a bolt hole A is reserved in the other end of each steel insertion sheet; one end of the circular-arc gap reserved in each steel insertion sheet is fixed together with the hollow sphere by welding; a groove and a bolt hole B are reserved in the end part of the each rod bamboo rod piece; one end, where the bolt hole is reserved, of each steel insertion sheet is inserted into the groove reserved in each bamboo rod piece; the bolt hole A reserved in each steel insertion sheet is aligned with the bolt hole B reserved in each bamboo rod piece; each bolt hole A and bolt hole B are fixed by using two bolts; the reinforced steel sheets are welded on the steel insertion sheets between the bamboo rod pieces and the hollow sphere. The bamboo latticed shell hollow sphere connecting joint has the advantages of simple structure, easiness in positioning and installing, clear force transmission, high integrity, easiness in maintaining and environmental friendliness; bamboo belonging to an environment-friendly renewable resource is taken as the rod piece material of the latticed shell connecting joint, so that an outstanding environmental protection advantage is achieved.

The invention discloses a flat-mold granulator which consists of a material bucket, a case, a working assembly, a main shaft assembly and a transmission assembly. According to the flat-mold granulator, working pressing force is directly transferred to a mold plate through a thrust bearing, and the case does not suffer from the pressing force, so that the wall thickness of the case can be reduced; moreover, a centripetal thrust bearing is directly arranged below the mold plate, so that the suspension length of the upper part of the main shaft is reduced, the working stability is facilitated, two bearings are not needed to be arranged below the case, and the height of the case can be reduced, therefore, the wall thickness of the case is reduced, the height is reduced, the overall height of the granulator is reduced, the mounting space is reduced, the amount of a metal material is reduced, and the production cost of the overall machine is lowered.