33results about How to "Easy interference fit" patented technology

The invention primarily relates to fastening and stabilizing tissues, implants, and/or bondable materials, such as the fastening of a tissue and/or implant to a bondable material, the fastening of an implant to tissue, and/or the fastening of an implant to another implant. This may involve using an energy source to bond and/or mechanically to stabilize a tissue, an implant, a bondable material, and/or other biocompatible material. The invention may also relate to the use of an energy source to remove and/or install an implant and/or bondable material or to facilitate solidification and/or polymerization of bondable material.

To form each receiving roller with an inexpensive metal material easy to purchase and to compose a heating device with a structure capable of preventing spark between workpiece receiving rollers for providing long-term durability, in a heating device of a metal tube body for induction-heating the total length of a workpiece while rotatably supporting it with two receiving rollers. This metal tube body heating device 40 is equipped with: the receiving rollers 50 and 60 for mounting the metal tube body 10 in a manner capable of horizontally and rotatably transmitting it; roller driving devices 25-26 for rotatably driving them by pivoting them; and induction heating devices 21-22 for induction-heating the total length of the metal tube body 10. The rollers 50 and 60 are composed of: metallic core members 51 and 61; a plurality of metallic short sleeves 52 and 62 each having an axially split form; and spacers 53 and 63 serving as mutual insulation thereof.

In accordance with an exemplary embodiment of the invention, a shaft coupling is provided. The shaft coupling comprises a first shaft having a splined outer surface, a tubular second shaft having an end surface and a splined inner surface, the second shaft receiving the first shaft along a longitudinal axis of the second shaft, and at least one stake extending axially into the second shaft end surface. The at least one stake deforms at least a portion of the splined inner surface to facilitate an interference fit between the first and second shafts and configured to resist a predetermined axial separation load being applied to the first and second shafts.

The invention discloses a two-degree-of-freedom micro-nano positioning platform. The two-degree-of-freedom micro-nano positioning platform comprises a base, a motion platform, guide mechanisms, decoupling mechanisms and drivers. The motion platform is arranged in the middle portion of the base. The four sides of the motion platform are connected with the motion mechanism. The guide mechanisms areconnected with the decoupling mechanisms. The decoupling mechanisms are connected with the base. An amplifying mechanism is arranged between the motion platform and each decoupling mechanism and connected with the decoupling mechanism. The drivers are arranged in the corresponding amplifying mechanisms. The drivers are used for driving the motion platform. The space of the positioning platform iseffectively utilized through the structural layout. The overall size of the positioning platform is reduced. Force-displacement nonlinearity generated from the hinge rigidity effect of the positioningplatform and concentrated stress of hinges can be reduced. Through a driver auxiliary assembly mechanism, the drivers are more conveniently assembled into the amplifying mechanisms in an interferencemode. The positioning platform can conduct wire cutting integrated machining and has the advantages of being free of assembly, friction and lubrication and the like.

The invention relates to an assembling device of mechanical parts and in particular relates to an automated mechanical device with matched shaft and sleeve. The automated mechanical device is composed of a pneumatic device, a pressure block, a rotating shaft, a sliding groove, a connecting rod, a cam, a cam shaft, a grooved wheel mechanism, a main shaft, a spring clamping jaw, a material pushing plate and the like; the grooved wheel mechanism is arranged on the main shaft and the cam shaft, the grooved wheel mechanism is connected with the main shaft by a general flat key, an indexing turn plate is arranged on the main shaft, the spring clamping jaw is arranged right above the indexing turn plate, the spring clamping jaw is arranged at the tail end of the sliding groove and is positioned right below the pressure block, a stepped shaft is arranged in the sliding groove, the pneumatic device and the pressure block are arranged above the sliding groove, and the sliding groove is arranged obliquely. According to the automated mechanical device, the manual labor intensity for assembling the shaft and the sleeve can be alleviated greatly, the working time is saved, and meanwhile, the labor productivity can be improved greatly. The s automated mechanical device has the advantages of exquisite structure, high automation degree, accurate transferring position, consistent pressure and high assembling precision, and the parts requiring interference fit can be assembled rapidly.

A valve for an aerosol canister for containing medicaments is disclosed. The valve comprises a valve assembly, a ferrule for holding the valve assembly and a gasket for insertion into the ferrule. The ferrule has at least one ferrule interference surface and the gasket has at least one gasket interference surface, and the contact zone between the ferrule interference surface and the gasket interference surface comprises a plurality of relief portions. Preferably, the ferrule interference surface comprises a plurality of ferrule relief pockets and the gasket interference surface comprises a plurality of gasket relief pockets. Also disclosed is a method of manufacturing a valve for an aerosol canister.

Methods, tools, and systems are described to allow cost effective field/on-site installation of connectors to flexible tubes/hoses for the transfer of various higher-pressure mediums. An economical means for preparing the tube/hose to receive a fitting stem with an optional retention ring allows installers to prepare assemblies in the field/on-site and provides a method for securely attaching the fitting to the tube/hose to withstand higher working pressures without using elastomeric rings or adhesives. Tooling described is portable and capable of use in confined areas. Additionally a method for increasing the number of sealing positions contained in the fitting dramatically reduces the number of installation leaks and allows for higher operating pressures.

The embodiment of the invention discloses a sealing connecting piece, a rivet ring assembly and an electronic device, the sealing connecting piece comprises a groove, a clamping hole and a plurality of stress release notches, the stress release notches and the clamping hole all penetrate through the bottom surface of the groove, and the stress release notches are distributed in the circumferential direction of the clamping hole and are laterally communicated with the clamping hole. The groove of the sealing connecting piece enables the riveting ring to be embedded with the sealing connecting piece and enables the sealing connecting piece to be attached to the shell more tightly, and the sealing waterproof effect can be achieved without being filled with sealant. Meanwhile, the clamping hole and the stress release notch are formed in the groove, so that interference fit and stress release of the wire rod and the sealing connecting piece are facilitated, and damage to the wire rod is avoided.

The invention discloses a rotor assembly of a high-power brushless electronic water pump and a mounting structure of the rotor assembly. The rotor assembly comprises an impeller and further comprisesa rotor shaft sleeve, wherein the impeller is fixed at the upper end part of the rotor shaft sleeve; an upper wear-resisting lubricating insert and a lower wear-resisting lubricating insert are concentrically embedded in inner holes at the upper end and the lower end of the rotor shaft sleeve respectively, and the upper wear-resisting lubricating insert and the lower wear-resisting lubricating insert are provided with center holes arranged being concentric with the inner holes of the rotor shaft sleeve; and a rotor iron core is fixed to the periphery of the rotor shaft sleeve, a great deal ofsintered Ru-Fe-B magnetic steel are evenly distributed on the periphery of the rotor iron core, and a rotor shell sleeve for wrapping and fixing the rotor iron core and the sintered Ru-Fe-B magnetic steel is fixed outside the rotor shaft sleeve. According to the rotor assembly, the magnetism of a rotor can be increased, the torque is increased, and then the power of the rotor assembly is improved.

According to the cooking utensil provided by the invention, the cooking cavity is divided into the lower cooking area and the upper oil collecting area by arranging the oil collecting tray and the oil filtering assembly, so that soup and food materials do not need to be separated in the cooking process of the food materials, and extra fat removing and collecting time is not needed; part of grease and floating objects generated in the cooking cavity are effectively collected; and the boss in the oil filtering assembly is detachably connected with the cover plate, so that the oil collecting tray and the oil filtering assembly have the advantages of being convenient to disassemble and clean and rapid to assemble and use.

The invention discloses a hybrid vehicle driving motor stator core structure. The hybrid vehicle driving motor stator core structure comprises a stator yoke portion with an annular structure and a ring of stator tooth portions connected with the inner ring of the stator yoke portion, wherein gullets for filling coils therein are formed between adjacent stator tooth portions, and the inner ring of the stator yoke portion and the inner end of the ring of the stator tooth portions are of buckling connection structures. According to the invention, the stator yoke portion is of an integrally formed annular structure, such that the circularity of the outer circle of a stator is guaranteed, and interference assembling between a stator iron core and a motor housing is facilitated; the stator yoke portion and the ring of the tooth portions are of the bucking connection structures, the assembling is simple, the assembling efficiency of the stator iron core is improved, and the production cost can be effectively reduced; and when the stator yoke portion and the stator tooth portions are of split structures, the stator tooth portions can be individually replaced when being damaged, replacement of the stator yoke portion is unnecessary, materials are reduced, and at the same time, the service life of a motor is prolonged.

The invention discloses a rotating shaft for a motor rotor unit. The rotating shaft is divided into a left side part and a right side part by a shaft shoulder; a first stepped structure is formed on the left side of the rotating shaft, adjacent to the shaft shoulder and used for fixing the first motor rotor assembly; a second stepped structure is formed on the left side of the rotating shaft, adjacent to the first stepped structure and used for connecting a bearing; a third step structure is formed on the right side of the rotating shaft, adjacent to the shaft shoulder and used for fixing themagnetism isolating part; a fourth step structure is formed on the right side of the rotating shaft, is adjacent to the third step structure and is used for fixing the second motor rotor assembly; anda fifth step structure is formed on the right side of the rotating shaft, adjacent to the fourth step structure and used for connecting a bearing. The invention further discloses a motor rotor unit used for the EPS steering system redundant motor and provided with the rotating shaft. Double movement of the motor rotor in the space electrical angle can be achieved, torque fluctuation can be eliminated, the influence caused by shaking of a steering wheel of the steering system is avoided, and the safety of the EPS steering system is improved.