270results about How to "Reduce manufacturing precision" patented technology

The invention relates to a full-automatic winding machine used for winding plastic tubes, aiming at simplifying the complicated structure of the winding machine and comprising a main-machine base, a rotary big arm arranged on the main-machine base, a tube-distributing mechanism and a tension control mechanism, wherein, two winding disks are symmetrically arranged on the rotary big arm, and after improvement, two winding-disk driving motors are symmetrically arranged on the rotary big arm and respectively connected with the two winding disks in a transmission way. The invention adopts the design of configuring driving sources respectively for the two winding disks to overcome the defects of complicated winding disk supporting and jointing devices, etc. existing by sharing one driving source, and the improvement reduces parts and reduces the manufacturing accuracy of the parts so as to simplify action program and distinctly enhance the reliability of equipment. The full-automatic winding machine of the invention improves the automation capability of plastic hose winding, enhances winding efficiency and is suitable for the automatic manufacturing line of various plastic hoses.

The invention provides a rotating wheel falling prevention device of an attachment type raise scaffold and a working method thereof. The rotating wheel falling prevention device is provided with a guide rail and a guide holder, wherein the guide holder is connected with a guide rail sliding sleeve, the guide rail is provided with spaced cross rods, the guide holder is provided with a rotating wheel which can be meshed with the cross rods in a transmission way, the rotating wheel is provided with a falling prevention clamping wheel, and a shaft seat of the rotating wheel is provided with swing needles by which the rotating wheel falling prevention device of the falling prevention clamping wheel, which reversely and fast rotates, can be braked; the falling prevention swing needles slowly swing and reset and the falling prevention clamping wheel slowly rotates during the slow raise and decline process of the scaffold so as to enable the raising or declining work of a scaffold body to be normally operated; when a scaffold body is suddenly declined, the rotating wheel generates high reverse rotation speed to enable the falling prevention swing needles not to be reset in time, thus the falling prevention swing needles clamp the falling prevention clamping wheel so as to enable the rotating wheel not to continuously reversely rotate, and the rotating wheel clamps the cross rods arranged on the guide rail so as to prevent the scaffold from continuously falling. The invention has the advantages of short braking distance, flexibility, reliability, difficult clamping, relative lower manufacturing accuracy and safe and reliable use.

The invention provides a color filter, a color filter manufacturing method, a display panel, a display device and a driving method. The color filter comprises multiple colored color resistors and multiple pixel regions, wherein the multiple colored color resistors include the red color resistors, the green color resistors and the blue color resistors, the multiple pixel regions are arranged in a matrix mode, each pixel region comprises a red sub-pixel region, a green sub-pixel region and a blue sub-pixel region, each red sub-pixel region comprises red inferior sub-pixel regions, the number of the red inferior sub-pixel regions of each red sub-pixel region is an even number, one red color resistor is arranged in each red inferior sub-pixel region, each green sub-pixel region comprises green inferior sub-pixel regions, the number of the green inferior sub-pixel regions of each green sub-pixel region is an even number, one green color resistor is arranged in each green inferior sub-pixel region, each blue sub-pixel region comprises blue inferior sub-pixel regions, the number of the blue inferior sub-pixel regions of each blue sub-pixel region is an even number, and one blue color resistor is arranged in each blue inferior sub-pixel region. Compared with the prior art, the manufacturing precision of a mask plate required by the color filter is lowered, the alignment precision is lowered, and the manufacturing difficulty of the color filter is lowered.

The invention discloses a combined construction structure which comprises first keels, second keels and an interlayer module; the adjacent two first keels and the adjacent two second keels form a square frame for installing the interlayer module; flanges which are integrated with the corresponding first keels and second keels are arranged on four inner side surfaces opposite to the square frame; elastic buckle-type profile U-shaped first external spacer bars which are laterally buckled onto the first keels, and elastic buckled-type profile U-shaped second external spacer bars which are laterally buckled onto the second keels are also arranged; one of the two buckles of the first external spacer bar of the first keel on the outermost side is buckled on the related flange, and the other is buckled in a first slot; and one of the two buckles on the second external spacer of the second keel on the outermost side is buckled on the related flange, and the other is buckled on a second slot. The combined construction structure has the advantages of good heat isolation and sound isolation effects, convenience and quickness in installation, simple process, good strength and rigidity of main keels, and low cost.

The invention relates to a photonic crystal all-optical exclusive-or logic gate structure based on an interference principle. In the photonic crystal all-optical exclusive-or logic gate structure based on the interference principle, by designing a special structure of an interference arm, a phase difference is generated between in-phase lights of different port input devices; the length of the interference arm is calculated by using a coupling mode theory, so the phase difference of input lights which pass through the interference arm is even times of Pi; and by designing the structure of a wave combining area, interference lights are fully coupled, and the logic exclusive-or operation of an output waveguide is realized. The photonic crystal all-optical exclusive-or logic gate structure based on the interference principle is made of a two-dimensional air background medium column square crystal lattice material, wherein the medium column material is crystalline silicon, and an index of refraction is 3.48; and by designing the unique structures of the interference arm and the wave combining area, the broadband exclusive-or operation of a window of 1,550 nm can be realized, and a new method is provided for miniature photonic integration.

The invention discloses a device and a method for centering a wind power generator spindle and a gearbox shaft expansion sleeve. The device comprises a wind power generator spindle support, a gearbox support and a tension machine, the wind power generator spindle support comprises a base and a floating rack in up-down arrangement, the floating rack comprises a mounting seat on an upper layer and a floating seat on a lower layer, a horizontal roller set supporting a wind power generator spindle assembly is mounted on the mounting seat and brings convenience to the wind power generator spindle to horizontally move, and a spring support between the base and the floating seat enables the wind power generator spindle assembly and the floating rack to be in a floating state in the vertical direction. The device and the method for centering the wind power generator spindle and the gearbox shaft expansion sleeve are high in centering accuracy, simple to operate and few in needed personnel.

The invention discloses a tracking and aiming control method and device for a heliostat. The traditional calculation method and the traditional computer control system are not adopted, while a new way is established. According to the tracking and aiming control method and device, a low-cost high-precision aiming sensor, a sun position recognition and tracking sensor and a three-point line tracking support aiming method are combined; accordingly, the heliostat is allowed to recognize the sun position and track the sun, and the light reflected to a specified target is fixed; the fact that a reflecting point of the heliostat, namely the heliostat, is permanently fixed at the specified target everywhere on earth for all seasons while the sun moves; the heliostat control method and device is implemented all by sensors. The system and structure of computers, software, programs, equations, longitude and latitude, linked control structure, laser aiming control, CCD aiming control, PLC control, large curved mirror reflection, and servo motor drive is not considered; stability and wind resistance are increased by several times; system cost and operation and maintenance cost are reduced by tens of times.

An adjustable door hinge comprises a left containing base and a right containing base in pairs and a set of arch arm assemblies, wherein the left containing base and the right containing base can be buried in a door leaf or a door frame, and the arch arm assemblies can form variable bending angles. The left containing base and the right containing base are respectively provided with a pair of fixing parts capable of adjusting displacement, and the two ends of the arch arm assemblies are connected to the pair of fixing parts in the left containing base and the pair of fixing parts in the right containing base respectively. The adjustable door hinge is characterized in that one fixing part of the pair of fixing parts in the left containing base or the pair of fixing parts in the right containing base comprises a straight arm sunk into one of the containing bases, and straight teeth are arranged on the straight arm; the corresponding containing base is provided with a gear corresponds to the straight teeth, the gear is located on the side edges of the straight teeth and meshed with the straight teeth, and when rotated, the gear can drive the fixing parts to move. The adjustable door hinge can be applied as an adjustable concealed door hinge used in daily life because having the characteristics and advantages.

The invention belongs to the technical field of accessories for assembling profiles, and particularly relates to a compound angle code for corner combinations of the profiles. The compound angle code for the corner combinations of the profiles comprises a first angle code body and a second angle code body which are symmetrically arranged, wherein a first diversion groove which extends along first connection arms and second connection arms is formed in the inner side face of a corner, a first gel injection groove is formed in the outer side face of an adjacent portion of each two adjacent first connection arms, a second gel injection groove is formed in the outer side face of an adjacent portion of each two adjacent second connection arms, a second diversion groove is formed in the outer side face of the corner, a third diversion groove is formed in a corner on an adjacent face of the first angle code body and the second angle code body, the third diversion groove is respectively communicated with the first diversion groove, the first gel injection grooves, the second gel injection grooves and the second diversion groove, and forth diversion grooves respectively communicated with the first diversion groove and the second diversion groove are formed in a corner on a side face of the first angle code body, far away from the adjacent face, and a corner on a side face of the second angle code body, far away from the adjacent face. When used, the compound angle code for the corner combinations of the profiles can improve connection strength of the profiles after the corner combinations, simultaneously can improve flatness of corner combination portions of the profiles, and prevents water from leaking through the corner combination portions of the profiles.

The invention belongs to a resin-based composite material molding technology, and relates to a mold for integrally molding a J-shaped reinforced composite material wall plate. The mold provided by the invention comprises an appearance mold 1, a positioning block 2, an upper flange forming mold 3, a limiting mold 4, a lower flange forming mold 5, and an auxiliary mold 6. According to the invention, the appearance mold 1 is adopted as a basis, and the positioning block 2, the upper flange forming mold 3 and the limiting mold 4 are positioned sequentially. Through the controlling over position precision of the assembled upper flange forming mold 3 and the assembled limiting mold 4, precision of the upper flange appearance surface of the J-shaped reinforcing rib and axis position precision of the reinforcing rib are ensured. Therefore, mold manufacturing cost is reduced, and manufacturing cycle is shortened.

The invention provides an elastic roller, a pin-teeth cycloidal reducer with the same and a bearing. The elastic roller comprises a hollow roller and a solid roller arranged inside the hollow roller, wherein a flying height for the hollow roller to generate elastic deformation is formed between the inner wall surface of the hollow roller and the outer wall surface of the solid roller. The elastic roller can provide a certain elastic deformation space for the hollow roller through the flying height, and further the sufficient elastic compensation ability can be realized during the selection and use of the interference fit; and meanwhile, the elastic roller can provide a certain support force through the inside solid roller, and can prevent the hollow roller from being flattened due to overlarge loading, so that the elastic roller can resist strong loading impact, has high strength and can not be damaged, thus reaching the aim of reliable elastic compensation, and further prolonging the service life of the elastic roller, pin-teeth cycloidal reducer and bearing provided by the invention.

The invention relates to the valve, especially valves with floating valve core in type of open and close by rotation. The valve is composed of the triple valve body, the floating valve core, the valve rod, the valve cap, the seal ring and the unit for controlling the valve rod. By taking full advantage of elasticity characteristics of the plastics, an erect claw is utilized to replace a cylinder.The circular bead is utilized to limit and lock the erect claw so as to reduce manufacturing accuracy needed as well as number of parts, material and cost. Since the steep fall structure of screw thread and the spring are used, the valve can return to closed position automatically when water quantity is low so as to solve the drip issue caused by not closing water faucet tightly or mild wear of seal ring. The stability of quality of the product is also raised.

The testing device includes standard collimator, scan type Hartmann diaphragm, focusing mirror, and CCD camera. The Hartmann diaphragm is installed on diaphragm bracket. Encoder is fixed on upper part of the bracket, and step motor and computer are installed on lower part of the bracket. Under control of computer, step motor drives scan type Hartmann diaphragm to rotate around optical axis, and computer receives image output from CCD camera and position information of scan type Hartmann diaphragm from encoder, and carries out data process for image. The invention can be applied for guiding fabricating optical elements, adjustment of optical path, evaluating qualities of incident beam and focal spot, possessing advantages of high testing precision, quick speed, and multiple functions.

The invention discloses a power testing apparatus for a small-power motor and the apparatus has power loss-free and wide measuring range properties. According to the invention, a front supporting seat is fixed on an active plate; a half axle is supported on the front supporting seat by a bearing; a moment rod is fixed on the axle body of the half axle; and a lower end of the moment rod is inserted into a testing position of a torque sensor. A rear end of the half axle and a center of a front end of a frame are fixed to each other; a rear end of the frame is fixed on an installation disk; a power shaft is arranged on the rear of the installation disk and is connected with a rear supporting seat through a bearing; the power shaft is connected with an input shaft of a dynamometer directly or by a speed change mechanism; and a rotating speed sensor is installed on the power shaft. According to the invention, a principle of a moment balance equation of Newton's third law is employed, wherein the equation is characterized in that sigma M is equal to an absolute value of-M, so that an equal corresponding relationship between a turning moment output by an output shaft of the motor and a counter turning moment that a housing of the motor is subjected to is obtained. And then the static counter torque, which is measured, is a torque output by the motor. The testing apparatus is free of losses and has a wide range; besides, an actual parameter value of the motor can be accurately tested by utilizing the testing apparatus.

The invention discloses an automatic grain sampler. The automatic grain sampler comprises a longitudinal traveling cart which is arranged on longitudinal traveling tracks, two transverse traveling trolleys which are arranged on transverse traveling tracks of the longitudinal traveling cart, and fiche chain transmission lifting mechanisms which are arranged on the transverse traveling trolleys. The automatic grain sampler is characterized in that: a longitudinal traveling cart reducing motor drives a driving shaft of the cart by a chain wheel, and traveling wheels of the cart which are positioned at both ends of the driving shaft and a driven shaft of the cart are arranged on the longitudinal traveling tracks; the two transverse traveling trolleys have the same structure, a driving sprocket of a transverse traveling reducing motor shaft of one trolley is connected with a driven sprocket of a transverse traveling reducing motor shaft of the other trolley through a trolley chain, and moving rollers of the trolleys are arranged on the transverse traveling tracks; and driving sprockets of fiche lifting reducing motor shafts of the fiche chain transmission lifting mechanisms are connected with driven sprockets of sprocket adjustment shafts of the trolleys through fiche chains, and the fiche chains are fixedly connected with fiches. The automatic grain sampler has the advantages of simple structure, high manufacturing and assembly processability, low cost, high performance-price ratio and the like, and can be operated stably.

The invention relates to a deodorant shower room base and belongs to the field of shower rooms. The deodorant shower room base solves the problem that odor pervades a shower room. The deodorant shower room base comprises a base body, the base body is provided with a gutter channel, a drain hole is formed in the bottom wall of the gutter channel, a boss and supporting pillars are arranged on a bottom plate of the gutter channel, a groove is formed in the top end face of the boss, a gear matched with the groove is arranged in the groove, a notch is formed in the side wall of the groove, teeth of the gear penetrate through the notch and extent to the outside of the groove, hooks are arranged on the side wall of each supporting pillar, the side wall of the gutter channel is provided with a locking groove and an annular step, a mounting plate is arranged on the annular step and provided with a through hole and a water inlet hole, the water inlet hole and the drain hole are staggered, the through hole corresponds to the groove, sealing elements are arranged on the periphery of the mounting plate, and the mounting plate is connected with the annular step through the sealing elements in a sealed mode.

The invention discloses an incremental absolute grating ruler-based absolute displacement detection method. The method included the following steps that: an incremental type grating ruler is marked, so that the incremental type grating ruler can be converted into an incremental absolute grating ruler, and the uniqueness of each grid line is guaranteed; grating images are collected and de-noised, and the grid lines of the grating ruler are extracted, a neural network model for deep learning is established, each grid line is trained, and the trained neural network model is stored; a mathematical model for displacement detection is established, the image of a grating ruler to be subjected to displacement detection is collected, and the trained neural network model is used for carrying out grid line recognition, and a recognized grid line number is fed back to the mathematical model, so that a displacement detection value can be calculated. According to the method of the invention, the incremental type grating ruler is converted into the incremental absolute grating ruler; the functions of the absolute grating ruler are realized through an incremental mode; and the manufacturing precision of the grating ruler is greatly reduced.

The invention discloses a tower mill. A technical scheme adopted by the tower mill is that the tower mill comprises a main motor, a speed reducing device, a supporting system, a cylinder, a door, a spiral stirrer and protective lining plates, wherein the main motor is connected with the speed reducing device, the speed reducing device is arranged on the supporting system, the supporting system is a completely-closed structure, a driving shaft is arranged in the supporting system, the upper end of the driving shaft is connected with the speed reducing device, and the lower end of the driving shaft is connected with a screw rod shaft of the spiral stirrer by virtue of a shaft sleeve; the protective lining plates are arranged on the inner walls of the cylinder and the door; the bottom end of a first spiral blade group and the bottom end of a second spiral blade group are connected with a double-head material picking blade which is fixedly arranged on the screw rod shaft; a discharge opening and a feed opening are formed in the cylinder; and the door is movably connected with the cylinder. By adopting the tower mill disclosed by the invention, the grinding efficiency of the tower mill can be significantly improved, the service life of wear-out parts can be prolonged, the loss of a grinding medium can be reduced, the assembly and use of the tower mill can be facilitated, the mechanical efficiency of the tower mill can be improved, and the manufacturing cost of the tower mill can be reduced.

The invention discloses a sectioned bag cage which comprises multiple connected bag cage sections. A clamping groove is formed in one of any two adjacent bag cage sections, and a clamping hook which can extend into the clamping groove to be clamped with the clamping groove so as to achieve connection of the two bag cage sections is arranged on the other of the two adjacent bag cage sections. In the sectioned bag cage, hook-groove structures are adopted replace elastic clamps so as to achieve connection of the bag cage sections, the phenomenon of filter bag puncture caused by drop of the elastic clamps is fundamentally avoided, and normal work of the sectioned bag cage is ensured. In addition, in the mode that the bag cage sections are connected by adopting the hook-groove structures, the accuracy requirement for matching sizes of the connecting positions of the upper and lower bag cage sections is greatly loosened, the manufacturing accuracy of connecting members is also reduced, the clamping grooves and the clamping hooks are both fixed to the bag cage sections, integration of the bag cage sections and the connecting members is achieved, and the connecting stability can be better. Furthermore, free-hand installation can be also achieved without special installing tools, and mounting and dismounting operation are more convenient. The invention further provides a bag type dust collector provided with the sectioned bag cage.

The invention relates to a macro and micro two-stage driving precision positioning mechanism, belongs to the technical field of precision positioning and solves the technical problems of big manufacturing and mounting difficulty, complicated structure and high manufacturing cost of a two-stage guide rail in the prior art. The macro and micro two-stage driving precision positioning mechanism comprises a piezoelectric actuator, a vibration absorption system, a base, an air flotation guide rail, a macro-moving positioning system, a micro-moving positioning slide block, a support frame and a laser interference measurement instrument, wherein the base is fixedly connected with the upper end surface of the vibration absorption system through a screw; the air flotation guide rail is connected with one end of the base through a screw; the support frame is connected onto the other end of the base through a screw; the laser interference measurement instrument is connected with the support frame through a screw; the micro-moving positioning slide block is in clearance fit with the air flotation guide rail; a rotor of a linear motor is fixedly connected with a macro-moving positioning and clamping slide block; a stator of the linear motor is connected with the base through a screw; two clamping guide rails are connected with the base through screws; one end of the piezoelectric actuator is fixedly connected with the micro-moving positioning slide block, and the other end of the piezoelectric actuator is fixedly connected with the macro-moving positioning and clamping slide block.