56results about How to "Satisfy the requirement of coaxiality" patented technology

The invention provides an adjustable dual-optical-wedge laser scanning performing mechanism based on a cantilever beam structure. The adjustable dual-optical-wedge laser scanning performing mechanism comprises an upper end cap, an upper optical wedge support arm, a lower optical wedge support arm, a high motor support body, a low motor support body, a high motor output gear, an upper optical wedge bearing transmission gear, an upper optical wedge high speed bearing, a high micro-motor, a low micro-motor, an upper optical wedge, a lower optical wedge, a lower optical wedge bearing transmission gear, a low motor output gear and a lower optical wedge high speed bearing. The upper end cap and the high motor support body are respectively provided with a fine adjustment set screw and a fine adjustment bolt which apply force to the upper optical wedge support arm and the lower optical wedge support arm so as to realize a fine adjustment function of the position and the axial deflection angle of the upper optical wedge and the lower optical wedge. The high micro-motor and the low micro-motor respectively drive the upper optical wedge and the lower optical wedge to relatively rotate around the common optical axis, wherein rotation is different in speed and opposite in direction, so that scanning paths of different speed ratios are generated. The adjustable dual-optical-wedge laser scanning performing mechanism has the advantages of being small in size, adjustable in optical wedge axial inclination angle and reliable in structure so that scanning and imaging distortion caused by installation error of the optical wedges can be avoided, and the adjustable dual-optical-wedge laser scanning performing mechanism is suitable for the field of flexible and high speed application.

The invention provides a container and a mining dumper. The container and a mining dumper comprises a left container part, a right container part and hinge support supporting parts, wherein opening structures are formed in jointed edges between the left container and the right container correspondingly; the opening structures are butted to form mounting openings; the hinge support supporting parts are fixedly arranged in the mounting openings; hinge supports, hinged with a mining dumper frame, are arranged at the lower parts of the hinge support supporting parts symmetrically; and the upper surfaces of the hinge support supporting parts are leveled to the inner surfaces of base plates of the left container part and the right container part. According to the container, the opening structures on the left container part and the right container part form the mounting openings, so that the hinge support supporting parts are arranged in the mounting openings; as the hinge support supporting parts are added, so that the hinge supports are arranged at the lower parts of the hinge support supporting parts; the hinge supports can be welded independently; requirements of coaxial degree of pin shaft holes of the hinge supports can be met; and manufacture precision of the hinge supports can be improved.

The invention provides a container and a mining dumper. The container and a mining dumper comprises a left container part, a right container part and hinge support supporting parts, wherein opening structures are formed in jointed edges between the left container and the right container correspondingly; the opening structures are butted to form mounting openings; the hinge support supporting parts are fixedly arranged in the mounting openings; hinge supports, hinged with a mining dumper frame, are arranged at the lower parts of the hinge support supporting parts symmetrically; and the upper surfaces of the hinge support supporting parts are leveled to the inner surfaces of base plates of the left container part and the right container part. According to the container, the opening structures on the left container part and the right container part form the mounting openings, so that the hinge support supporting parts are arranged in the mounting openings; as the hinge support supporting parts are added, so that the hinge supports are arranged at the lower parts of the hinge support supporting parts; the hinge supports can be welded independently; requirements of coaxial degree of pin shaft holes of the hinge supports can be met; and manufacture precision of the hinge supports can be improved.

The invention provides a coaxiality precise control device and method used for carrying out brazing on a guide pipe in a long and straight structure. The device comprises an upper installing plate anda lower installing plate. The upper installing plate and the lower installing plate are connected through a supporting column. Locating pins are arranged at the two ends of the upper installing platerespectively. Locating bases opposite to the locating pins are arranged at the two ends of the lower installing plate respectively, wherein the locating bases share the same central axis. The controldevice further comprises an argon protection bin which is fixedly installed on one locating base. A guide pipe installing opening of the argon protection bin and the locating base on which the argonprotection bin is located share the same central axis. The method comprises the three steps that the first to-be-brazed guide pipe in the long and straight structure is installed between the locatingbase with the argon protection bin and the corresponding locating pin, and the to-be-brazed portion is totally arranged in the argon protection bin; argon is introduced, and brazing is started; afterbrazing on the first pipeline is finished, in-situ cooling is carried out, the argon protection bin is moved to the other locating base, and the brazing process of the second to-be-brazed guide pipe in the long and straight structure is started.

The invention belongs to the field of a precision measurement technology, and provides a single-sided meshing measurement device for face gear errors. The single-sided meshing measurement device comprises a cylindrical gear shafting, a cylindrical gear installation mechanism, a face gear shafting, a face gear installation mechanism, a motor, a coupler, a worm, a controller, a drive unit, a circular grating system, a subdividing device, a DSI card, a data acquisition card and an industrial personal computer. The cylindrical gear shafting is an active shafting and is driven by a servo motor. The single-sided meshing measurement device reduces the quantity of parts of an instrument, and enhances stability of a system.

The invention discloses a multi-span rotor test bench with adjustable shaft sections and supports, which comprises a driving motor arranged on a base, a transmission shaft module, a chute guiding and positioning module, a movable supporting module, and a self-centering disc rotor module The drive shaft module includes a number of drive shafts and couplings, the chute guide positioning module includes a slider assembly that slides along a linear guide rail; the movable support module includes a self-centering that is connected to the slider assembly through a support assembly The self-centering sleeve is locked and fixed to the transmission shaft through a locking assembly; the self-centering disk rotor module includes a counterweight disk that is locked and fixed to the transmission shaft through a locking assembly. The present invention has the characteristics of simple structure, convenient operation, reliable test, etc., can effectively guarantee high coaxiality between each shaft section, and can carry out experimental researches such as variable support position, variable shaft section length, variable shaft section outer diameter, etc. A practical and efficient rotor test system is provided, which greatly speeds up the research process.

The present invention relates to a wellhead system for mining underwater resources, which includes: a casing, used for mining underwater resources; a casing head, arranged on the top of the casing; a suction pile, covered and arranged on the outer periphery of the casing; wherein, The suction pile is covered with a casing catcher at the inner upper end of the outer periphery of the casing, and the outer periphery of the casing is provided with a locking structure matched with the casing catcher structure. The slope surface of the inner circumference of the upper end of the device realizes structural cooperation, so that the locking structure and the casing catcher cooperate to form a "double suspension" structure that reduces the water flow resistance when the casing moves down. The wellhead system used for underwater resource exploitation provided by the present invention can be installed within ±1°; no cementing is required, so the working time at sea is saved; all underwater wellhead systems can be recycled, which is very convenient to use .