46results about How to "Solve the problem of eccentricity" patented technology

The invention relates to a lens module manufacture device and the manufacture method thereof; the lens module manufacture device comprises a lens (a separating cushion piece can be selected to match with the lens), a forming mould and moulding processes; wherein the lens can be the lenses in various catalogs; the separating cushion piece is equipped between the lenses; the forming mould comprises a mould cavity; the mould cavity consists of an upper film kernel, a lower film kernel, a left sliding block film kernel and a right sliding block film kernel (or the film kernel in other direction); cushioning devices can be equipped on the film kernel and under the film kernel; the cushioning devices are used to cushion the lens and the separating cushion piece and regulate the tolerances of the lens and the separating cushion piece; stop sliding blocks can be equipped on the front ends of the left and the right sliding block film kernels, which avoids the migration or the transplacement of the center line of the lens when the lens module is formed. The invention makes at least one lens and more than one separating cushion piece selected to match with the lens pass through a thermohardening or a thermoplastic forming mould and be processed into the lens module through an integral forming processing procedure.

The invention provides a stirling engine. The stirling engine comprises a first cylinder, a second cylinder, an air moving piston and a power piston. The stirling engine is characterized in that the bottom end of the power piston is arranged to a magnet, and a guide groove is obliquely formed in the periphery or the inner wall of the power piston; a driving block which is in match with the magnet by magnetic attracting through a clearance manner is arranged on the air moving piston; a flywheel is arranged on the top end of the second cylinder through a rotating shaft; the rotating direction of the flywheel is perpendicular to the moving direction of the power piston; the rotating shaft is downwards connected with a driving rod; the end part of the driving rod is arranged in the guide groove and can move along the guide groove. The invention further discloses a cup cover and a cup which are both provided with the engine. Compared with the prior art, the stirling engine has the advantages that the power piston drives the flywheel through the driving rod to rotate in the horizontal direction, so that the structure and type of the existing stirling engine model is enriched; the whole structure is compact, and the design is nice.

The invention discloses a self-locking steel bar connecting grouting sleeve which comprises a sleeve body. The sleeve body is provided with a grouting hole and a grout outlet hole, a grouting cavity communicated with the grouting hole and the grout outlet hole is formed in the sleeve body, the inner wall of the grouting cavity is provided with ribs or corrugations, and the inner wall of the grouting cavity is also provided with multiple clamping tongues. On one hand, when steel bars are inserted into the self-locking steel bar connecting grouting sleeve, a mechanical anchoring force can be effectively provided through the self-locking effect between the steel bars and threaded steel bar ribs; on the other hand, when connected steel bars inserted into prefabricated members have deviations,and when the steel bars are inserted into the grouting sleeve, the situation of wall attachment or eccentricity occurring during connection of the self-locking steel bar connecting grouting sleeve canbe effectively avoided through appropriate position correction of the steel bars due to the vertical radial effect of the clamping tongues.

The invention relates to a method for mounting and fixing a purging plug brick on outer upper portion of a ladle. The method includes the steps of firstly, fixing a spiral slideway on the inner side of a reference ring of the purging plug brick, fixing a bolt at the bottom of the purging plug brick, sleeving a screwing slider on the outer side of the bolt, and inserting the top end of an automatic torque wrench to the screwing slider; secondly, starting the power of the automatic torque wrench, and allowing rotation torque to drive the screwing slider to be screwed into the purging plug brick along the spiral slideway; thirdly, demounting a nut and the automatic torque wrench, embedding a support brick with ash into a groove of the screwing slider, mounting support iron, a cover plate and the nut, and tightening the nut and the bolt to fix the cover plate and the support iron. The method has the advantages that due to the fact that mounting is performed through the automatic torque wrench, accurate mounting of the purging plug brick is achieved, the purging plug brick defects such as air channels, eccentricity, position difference, large seam and twin brick raising during purging plug brick mounting are overcome, the purging plug brick can be replaced conveniently, and ladle leakage accidents caused by purging plug brick mounting mistakes are avoided.

The invention relates to a locomotive for an individual rapid transport system, and the individual rapid transport system. The locomotive comprises a locomotive body, a first stabilizing wheel used for stabilizing the locomotive is arranged on the lower part of the locomotive body, the rotary axis of the first stabilizing wheel is perpendicular to the length direction of the locomotive body, and the first stabilizing wheel is used for rolling along with a rail of the locomotive. The individual rapid transport system is simple and compact in structure and low in cost, stable operation is facilitated, resonance is prevented, noise is reduced, the problem of eccentricity of the locomotive during monorail operation can be effectively solved, and force balance of the locomotive is facilitated.

The invention relates to automatic decoking equipment. The automatic decoking equipment comprises a hollow bit, a coupling, a motor reduction gearbox, a stepping motor, a linear sliding rail, a ball screw, a feeding support frame, a first fixing piece, a decoking equipment support, a coke tower and a second fixing piece; the linear sliding rail is arranged above one side of the decoking equipment support, and the feeding support frame, the first fixing piece and the second fixing piece are arranged above the other side of the feeding support frame; the stepping motor is arranged at the right end part of the decoking equipment support and is connected with the motor reduction gearbox and the coupling; the hollow bit is connected in the axial direction of the coupling and is axially butted with the coke tower; the ball screw is arranged between the motor reduction gearbox and the feeding support frame; the hollow bit is fixedly arranged on the feeding support frame and a sliding block of the linear sliding rail; the coke tower is arranged on the first fixing piece and the second fixing piece. The automatic decoking equipment has the advantages that the labor intensity of operators can be greatly reduced, the working efficiency can be improved and the testing cost is reduced.

The invention provides an integrated rodless lifting string, which includes: an outer cylinder and an oil pipe pierced in the outer cylinder; a screw pump, which is arranged in the outer cylinder, and the screw pump is connected to the Below the oil pipe, and includes a screw and a screw pump stator sleeved outside the screw, an oil delivery chamber communicated with the oil pipe is formed between the screw pump stator and the screw; the submersible motor is located at In the outer cylinder, it includes a motor rotor connected to the stator of the screw pump, and a motor stator sleeved outside the motor rotor and connected to the outer cylinder, and the motor rotor can drive the screw pump The stator rotates; the flexible shaft is arranged in the outer cylinder and connected under the screw rod; the thrust device is fixed in the outer cylinder and connected under the flexible shaft. The invention can reduce the length of the tool string of the lifting pipe string and improve the passability of the inclined well section.

The invention provides an automatic assembling device of a rotor and an end cover of a permanent magnet synchronous motor. The automatic assembling device comprises a fixed platform, a horizontal moving platform, a radical moving platform, a supporting platform, an end cover transferring platform, a rotor and case transferring platform, an end cover gripping assembly, a rotor gripping assembly and an ejector rod assembly, wherein the end cover gripping assembly comprises a pushing cylinder, a pushing rod assembly, an end cover gripper fixing platform and an end cover gripper; and the rotor gripping assembly comprises a rotor gripper fixing platform, a rotor gripper and a bidirectional cylinder. The working process of the device provided by the invention comprises the steps of firstly gripping the end cover of the motor, then gripping the rotor of the motor, and finally completing the assembling of the rotor and the end cover of the motor, so that the problem of rotor displacement generated by magnetic force attraction with the inner wall of a stator in the process that the rotor of the permanent magnet synchronous motor is pressed is solved, and the problems that the end cover is deformed and the cooperation is non-uniform caused by knocking when the end cover of the permanent magnet synchronous motor is mounted are solved.

The invention relates to the technical field of civil defense protection equipment and discloses a machining device for door furniture axial central holes for civil defense. The machining device includes a drill bit, a lifting rod is fixedly installed on the front surface of the drill bit, a supporting plate is fixedly connected to the portion, on the right side of the lifting rod, of the bottom of the drill bit, a worktable is fixedly connected to the portion, at the bottom of the drill bit, of the left side of the supporting plate, and a fixed clamping plate is fixedly connected to the portion, at the bottom of the drill bit, of the top of the worktable. According to the machining device for the door furniture axial central holes for civil defense, through arrangement of two triangular head anti-declination blocks, after a movable clamping plate and the fixed clamping plate are both in contact with an object to be machined, a turntable is still selected at that time, and the left ends of the triangular head anti-declination blocks can be clamped to the inner walls of anti-declination grooves. Since the two triangular head anti-declination blocks are symmetric and a left structureis triangular, the fixed clamping plate is relatively parallel to the movable clamping plate, and a problem that the axial central holes are eccentric since clamping is not stable is solved.

The present invention relates to one kind of welding fixture and welding method for vacuum tube. The welding fixture made of heat conducting and electric insulating material has outer diameter equal to the inner diameter of the anode tube, and coaxial through hole in the middle part in the diameter equal to the outer diameter of the shielding cover of the filament assembly. The vacuum tube welding method with the welding fixture includes the following steps: 1. setting the fixture inside the anode tube; 2. setting the shielding cover of the filament assembly inside the through hole; and 3. welding the filament assembly coaxially with the anode tube. The fixture of the present invention has simple structure, and the welding method is simple, high in efficiency and low in cost, and can ensure the use performance of the vacuum tube.

The present invention belongs to the technical field of optics, and particularly relates to a horizon type theodolite collimation error adjustment method, which mainly comprises: 1) adjusting the auto-collimating centering of a main mirror; 2) adjusting the lens auto-collimating centering of a CCD; and 3) installing a sub-mirror assembly, eliminating the coma and the astigmatism between the main mirror assembly and the sub-mirror assembly, and ensuring that the spherical aberration and the focal distance of the main mirror system and the sub-mirror system meet the requirements. According to the present invention, the operation of the method is simple, and the problem that the processing precision of the mechanical structure member in the horizon type theodolite difficultly meets the optical system precision requirement so as to cause the inclination or decentration of the visual axis and the optical axis is solved.

The invention discloses an adjustable center returning base of a center penetrating jack. The base comprises adjustable legs, a bracket baseplate, a stiffened plate and a ground foot cushion plate, wherein the adjustable legs are connected through the bracket baseplate; the lower ends of the adjustable legs are mounted on the ground foot cushion plate; four adjustable legs are provided; each adjustable leg comprises an adjustable screw rod; screw rod casings are mounted outside the adjustable screw rods; and multiple square nuts are connected with the screw rod casings. The base has the advantages of simple structure, convenience for operation, safety and reliability; and the jack eccentricity problem can be solved only by manually adjusting the adjustable screw rods through a spanner, so that the problems of capability of performing the jack eccentricity adjustment through the fit of multiple persons, prevention of repeated adjustment, long adjustment time and inaccurate centering precision are solved.

The embodiment of the invention discloses a magnetic steel sheet, a magnetic focusing system and a traveling wave tube comprising the magnetic focusing system. The magnetic steel sheet comprises a first body with a first central through hole, and a U-shaped notch formed in the first body and penetrating through the upper side surface and the lower side surface of the magnetic steel sheet, whereinthe hole center of the first central through hole extends in the radial direction of the first central through hole to penetrate through the surface of the outer side wall of the first body to form the U-shaped notch, the magnetic steel sheet further comprises a first compensation notch, the first compensation notch and the U-shaped notch are arranged in the same center line, the opening directionof the first compensation notch is opposite to the opening direction of the U-shaped notch, the first compensation notch penetrates through the upper side surface and the lower side surface of the magnetic steel sheet, and the length of the first compensation notch is smaller than the radius length of the first body of the magnetic steel sheet. According to the invention, the magnetic steel sheetis simple to process and convenient to install, the asymmetry of the magnetic steel sheet is reduced, the eccentric distance of a magnetic induction line is shortened, and the passing rate of electron beams is improved.