43results about How to "Increase the difficulty of assembly" patented technology

The invention discloses an axial magnetic gear. The axial magnetic gear comprises a low-speed rotor, a high-speed rotor and a stator. The low-speed rotor and the high-speed rotor are arranged coaxially in the axial direction and have the same outer diameter. The low-speed rotor is an annular magnetizer. Evenly spaced low-speed rotor salient poles are arranged on the outer ring of the annular magnetizer. The high-speed rotor comprises a high-speed rotor iron core and a high-speed rotor permanent magnet embedded in the high-speed rotor iron core. The stator has an annular structure composed of evenly-spaced magnetic conductive blocks. The stator is fixed outside the high-speed rotor and the low-speed rotor coaxially. Two end faces of the stator are parallel and level to the outer end faces of the high-speed rotor and the low-speed rotor. A permanent magnet is filled between adjacent stator magnetic conductive blocks corresponding to the low-speed rotor side. Air gaps are arranged between the stator and the high-speed rotor and between the stator and the low-speed rotor. A gap is arranged between the high-speed rotor and the low-speed rotor in the axial direction, and free rotation of the high-speed rotor and the low-speed rotor can be ensured. The axial magnetic gear achieving variable transmission by utilization of the harmonic wave magnetic field coupling effect has characteristics of high mechanical reliability and convenient processing and manufacturing.

Disclosed is a method for designing a die molded surface for forming a groove-shaped part. An inner molded surface M of the part is extracted, and section lines Pj of the extracted inner molded surface of the part are manufactured; the various section lines Pj are corrected sequentially through correction basis points, and new section lines are obtained; and surface fitting is carried out on the obtained section lines, and a new mold outer molded surface is obtained. The maximum deformation of the groove-shaped part formed through the mold outer molded surface determined through the method is reduced to 0.2mm from 1.5mm, and the design requirements of the part are met. Compared with the traditional technology, when the mold molded surface is designed, rebound deformation obtained after part deformation is considered in the method, and the problem that according to a traditional method, an inner molded surface of a composite material groove-shaped part is directly extracted to serve as the mold molded surface for manufacturing the composite material part, the part size cannot meet the design requirement is solved; and the mold repairing frequency of a follow-up mold is reduced, and therefore the production manufacturing cost is reduced, and the production efficiency is improved.

The invention belongs to the technical field of microimaging, in particular to a lighting path of a plate lighting microscope and provides a lighting system of a plate lighting microscope with variable thickness and length of a plate. The system successively comprises a laser light source, a four-component mechanical compensation afocal zooming beam expanding system of a full spherical mirror, a cylindrical lens and a microobjective arranged along the optical axis from the object side to the image side; light emitted by the laser light source changes in aperture of a laser beam by means of theafocal zooming beam expanding system and then passes through the cylindrical lens rotating at 90 degrees by taking the optical axis as the rotating axis to form the plate light. The plate light undergoes subduction of spherical aberration generated by the afocal zooming beam expanding system and the cylindrical lens through a spherical aberration subduction microobjective, and the light intensityof the whole plate is more uniform; the plate lighting microscope can be used for observing biological samples in a certain dimensional range under the circumstance of not replacing the plate lighting system.

A jigsaw puzzle game system has a number of inter-fitting pieces which combine to create a finished visual effect. None of the puzzle pieces are interchangeable. All pieces have identical top and bottom surfaces and thus could be used on either side. The pieces do not carry a visual marker or design to assist in determining where the individual pieces fit in the overall puzzle scheme. Each puzzle is a unique design with a combination of pieces that will fit no other puzzle with similar visual appearance. Each puzzle is assigned a serial number and individual part numbers are assigned to each puzzle piece. A puzzle solution map is included with each puzzle. This map includes the unique serial number of the corresponding puzzle along with a completed visual scheme with each puzzle piece indicated with a part number that corresponds with the assigned number for each puzzle piece. A method is provided for computer-generated replacement of the puzzle solution map or individual puzzle pieces through an Internet website.

The invention relates to the technical field of wearable equipment, in particular to a watch body and a smart watch. The watch body comprises a plastic seat body, a metal frame body and a display screen; a mounting groove is formed in the plastic seat body; the mounting groove is used for mounting electrical elements of a smart watch; the metal frame body is arranged on the outer side face of the plastic seat body in a sleeving mode; and the display screen is arranged on the mounting groove in a covering mode. The watch body is simple in structure, and the manufacturing and assembling difficulty and cost of the watch body can be reduced while the attractiveness and the structural strength of the watch body are guaranteed; and the metal frame body can be used as a communication antenna of the smart watch, so that the signal strength of the smart watch is improved.

An electronic device includes an enclosure, a speaker fixed in the enclosure, and a rubber element. The enclosure defines an exposed slot, and a speaker receiving chamber communicating with the slot. The speaker includes a first surface and a opposite second surface. The speaker is configured for radiating sound at the first surface. The rubber element includes a main body a recess and a through hole penetrating through a bottom of the recess. The speaker is inserted in the recess with the first surface facing the bottom of the recess. The combined the speaker and the rubber element are engagingly received in the speaker receiving chamber.

The invention relates to the technical field of telegraph pole construction, in particular to a multi-section cement pole automatic assembly and installation device. The multi-section cement pole automatic assembly and installation device comprises a bearing mechanism, a primary lifting mechanism and a secondary lifting mechanism. The bearing mechanism comprises a transfer vehicle, a bearing platform and a dragging assembly. The primary lifting mechanism comprises a bracket, a drive assembly, a supporting assembly and a positioning assembly. The secondary lifting mechanism comprises a moving frame arranged on the bracket, a lifting assembly arranged on the moving frame, connected with the supporting assembly and used for lifting an auxiliary rod, and a translation assembly arranged on thebracket and used for positioning and transferring the auxiliary rod on the lifting assembly. Through the special structure arrangement of the primary lifting mechanism and the secondary lifting mechanism, a main rod and the auxiliary rod are constructed in sequence, the auxiliary rod is laterally dragged through the lifting assembly, the auxiliary rod is supported through the translation assembly,the auxiliary rod is lifted above the main rod and then stably and accurately subjected to translation, and the auxiliary rod and the main rod are rapidly assembled. The technical problem that in theprior art, a multi-section telegraph pole is complex in construction is solved.

The invention provides a fundus camera fixation device and a fundus camera. The fixation device comprises an annular fixing piece which is fixedly connected to the outer side of one end of a front lens cone through a fixation structure and at least one mounting arm. One end of the at least one mounting arm is fixedly connected with the annular fixing piece and the other end of the at least one mounting arm extends to be opposite to one end part of the front lens cone and is provided with a mounting position for mounting a fixation lamp. According to the fundus camera fixation device, a fixation lamp is installed outside the lens cone through the fixation device, so that the assembly difficulty of the fundus camera is not increased, the size of the lens cone is not increased, and the cost increase is small.

The invention discloses a Mini LED dodging sheet, a preparation process thereof and a backlight module, the dodging sheet comprises a substrate, a plurality of micro lens structures arranged at one side of the substrate and a convex lens structure arranged at the other side of the substrate, the plurality of micro lens structures are arranged in a plurality of rows, and the convex lens structure is arranged on the other side of the substrate. The multiple micro-lens structures in two adjacent rows are arranged in a staggered mode or a random mode or an orthogonal mode, the two adjacent micro-lens structures are partially overlapped, each micro-lens structure comprises a concave structure and/or a convex structure, and the convex lens structure comprises multiple convex lens bodies with set shapes. According to the Mini LED dodging sheet, the micro lens structure is arranged at one side of the Mini LED dodging sheet, the convex lens structure is arranged at the other side of the Mini LED dodging sheet, so that a lamp bead panel emits light uniformly, the utilization efficiency of the light is improved, the light transmittance is enhanced while the haze is guaranteed, the superposition photoetching technology is adopted, and the duty ratio of the micro lens structure on the Mini LED dodging sheet can reach 100%.

The invention discloses a slewing bearing worm wheel outer gear ring processing method and a rotary driving device. The processing method comprises the following steps: rough turning, semi finish turning, roller path thermal treatment, tempering, finish turning, hobbing, hole processing and roll path lathing and grinding. The rotary driving device comprises a worm wheel slewing bearing and a worm;conical roller bearings are arranged on the two side walls of the worm; a slewing bearing worm wheel outer gear ring is processed through a large-diameter hob; when the worm wheel and the worm drivefor operation, certain space exists between the dedendum circle of the worm wheel and the addendum circle of the worm, and an artificial oil culvert is formed in the space, so that the lubricating condition can be effectively improved and the actual contact area can be enlarged, the coefficient of friction and the contact stress value are reduced, and the purpose of improving the driving bearing capacity of the worm wheel and the worm is finally realized; and in addition, the worm wheel is processed by adopting the large-diameter hob, drum type modification is carried out in the tooth direction, and along with load increase, the contact spot becomes larger and larger, so that the bearing capacity of the worm wheel is improved, the transmission noise of a rod pair is lowered, and the service life is prolonged.

The invention discloses a small-sized electromagnetic relay applicable to an intelligent socket. The small-sized electromagnetic relay comprises a body, and a magnetic circuit part and at least two groups of contact parts which are arranged on the body, wherein the magnetic circuit part comprises a coil, a yoke and an armature; all the groups of contact parts comprise dynamic springs and static springs; the dynamic springs and the static springs are matched; first bent parts are respectively arranged on the dynamic springs and the static springs. By arrangement of the first bent parts, the flat plate design of the conventional static springs and dynamic springs is changed, so that on the basis of not increasing the manufacturing cost and the assembling difficulty, aims that the relay enlarges a current carrying area of a reed under a finite volume and improves the current carrying capacity of the reed are fulfilled; according to the quantity of the contact parts, at least two groups offirst bent parts are designed, so that the relay disclosed by the invention can switch on and switch off a zero line and a live wire; the safety of the intelligent socket is improved; mounting requirements of the socket for a high load and a small size are met.

The invention provides a harmonic reducer flexible gear structure designing and optimizing method. The harmonic reducer flexible gear structure designing and optimizing method comprises, firstly, forsolving the problem that existing harmonic flexible gears have radial warping of gear teeth after being assembled, performing similarity and contradiction analysis to acquire a number of initial design schemes; extracting the eigenvalues of every scheme through FEM (finite element method) for analysis; performing universal solution of an optimal scheme through response surface analysis and CCD (cyclic-coordinate descent) algorithm. The flexible gear structure designing and optimizing method designs a novel form of tapered flexible gear structure and is of great significance to reducing tooth warping of flexible gears and improving the contact ratio of teeth of the flexible gears.

The invention provides a vibration isolation device for an airborne electro-optical pod. The vibration isolation device comprises an outer mounting elastic adjusting layer, an outer mounting ring, a viscoelastic damping layer and an inner mounting ring; the inner mounting ring is connected with an inner cabin, the outer mounting ring is connected with an outer cabin, and the outer mounting elasticadjusting layer can realize seamless connection between the vibration isolation device and the outer cabin; the vibration isolation device has a three-direction vibration isolation buffering effect;slotted holes are distributed in the outer mounting ring, and the rigidity of the vibration isolation device can be adjusted by designing the sizes and shapes of the slotted holes and the rigidity ofthe viscoelastic damping layer; furthermore, bosses of the inner mounting ring and the outer mounting ring mutually form a limiting and interlocking device, large displacement in three directions canbe limited, meanwhile, self-locking in an ultimate failure state can be achieved, and the equipment safety and reliability are improved.

The invention relates to a slide rail which comprises a male rail and a female rail embedded together, wherein a slide rail locking mechanism is arranged between the male rail and the female rail; theslide rail locking mechanism comprises a locking disc, and an unlocking tongue, a first spring and a second spring arranged on the locking disc; the first spring and the second spring are separatelylocated on two sides of the unlocking tongue; the locking disc is fixedly mounted on the male rail; the mail rail is provided with a tongue hole and a first mounting hole and a second mounting hole intwo sides of the tongue hole; the top end of the unlocking tongue is fixed to the locking disc and the bottom end of the unlocking tongue penetrates through the tongue hole; the first and second mounting holes are provided with large diameter ends and small diameter ends; the top ends of the first and second springs are fixed to the locking disc and the bottom ends separately penetrate through the large diameter ends of the first and second mounting holes and are locked to the small diameter ends, so that the first and second springs are elastically supported between the locking disc and themale rail. The slide rail provided by the invention is compact in structure and reliable to lock, and the invention also provides the slide rail locking spring assembling device capable of processingquickly, so that the production efficiency is relatively high.

A battery module according to one embodiment of the present invention comprises: a battery cell laminate in which a plurality of battery cells are laminated; a module frame for accommodating the battery cell stack; an end plate for covering the front surface and the rear surface of the battery cell stack; a heat sink formed on the bottom of the module frame; and a cooling port for supplying a refrigerant to the heat sink, in which the module frame includes a module frame protrusion formed to extend such that a bottom of the module frame passes through the end plate, and the cooling port is arranged in a shape protruding upward from an upper surface portion of the module frame protrusion.

The invention belongs to an automobile part production process, and particularly relates to an assembly process of a safety belt and a safety belt winder. The assembly process has the advantages that the assembly process of the safety belt and the safety belt winder is improved; the assembly process of firstly connecting the safety belt onto the safety belt winder in a penetrating way and then sewing the end part of the safety belt is adopted; the problem of assembly difficulty of the safety belt and the safety belt winder in the prior art is solved; the work difficulty of workers is reduced; and the production efficiency is improved.