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.

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.

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.

The invention relates to a rubber bushing, which comprises an outer casing pipe, an inner casing pipe and bushing rubber. From one end to the other end, the outer casing pipe is sequentially provided with a guiding conical section, a front interference fit cylindrical section, an inner necking cylindrical section, a back interference fit cylindrical section and a press mounting bearing plane. The guiding conical section has a small top diameter and forms a cone structure. The inner necking cylindrical section has a smaller diameter than the interference fit cylindrical section. The metal end of the back interference fit cylindrical section is provided with an outward turnup, which forms the press mounting bearing plane. A rubber anti-collision layer is formed on the press mounting bearing plane. According to the technical scheme of the invention, through sectional design and interference fit of the outer casing pipe, no internal defects are generated in a press mounting assembly process, the press mounting tooling can be clear in positioning, the press mounting bearing surface is expanded, the influence of other controlling factors is small, and the potential interference abnormal sound is solved.

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 discloses a high-power brushless electronic water pump. The high-power brushless electronic water pump comprises a shell, an isolation sleeve and an upper cover; a mounting cavity is formed between the isolation sleeve and the shell, a fluid cavity is formed between the isolation sleeve and the upper cover, a stator assembly and a PCB are fixed in the mounting cavity, and a rotor assembly is rotationally arranged in the fluid cavity; the rotor assembly comprises an impeller and a rotor shaft sleeve, the impeller is fixed to the upper end part of the rotor shaft sleeve, and an upper wear-resisting lubricating insert and a lower wear-resisting lubricating insert are concentrically embedded into the upper end and the lower end of the rotor shaft sleeve respectively; a rotor ironcore is fixed to the periphery of the rotor shaft sleeve, sintered Ru-Fe-B magnetic steel is evenly distributed on the circumference of the circle center of the rotor iron core, and a rotor sleeve shell is fixed outside the rotor shaft sleeve; the isolation sleeve is provided with a positioning center shaft, and the positioning center shaft is inserted into a center hole; and the shell is provided with a heat dissipation device connected with the PCB in a heat conduction mode, and the shell is provided with a patch plug connected with an external wire. The brushless electronic water pump canimprove the magnetism of a rotor, and therefore the power of the brushless electronic water pump is improved.

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.

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.

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.

The invention discloses an electric connector fixed by a contact element, which comprises an outer casing (4), an upper base (2), a lower base (3) and a contact element (1), wherein a radial limiting portion (11), an interference portion (12) and a guiding portion (14) are arranged on the contact element (1), the contact element (1) is in clearance fit or transitional fit fixing with the upper base (2), the interference portion (12) is in interference fit fixing with the lower base (3), the lower portion of the interference portion (12) is equipped with the guiding portion which has guiding functions and is convenient for assembly of the contact element (1) and the base, and the outer diameter of the guiding portion (14) is smaller than that of the interference portion (12). A conical surface portion (13) for connecting the cylindrical surface of the interference portion (12) and the cylindrical surface of the guiding portion (14) is arranged between the interference portion (12) and the guiding portion (14). The contact element is closely engaged with the bases, is stable in installation, can effectively resolve the shaking problem of the contact element, and is convenient to assemble and high in assembly efficiency.

A differential housing includes a body including an outer surface. The body has a first end, a second end, and an intermediate portion extending therebetween. A ring gear support member extends outwardly of the body at the second end. A ring gear support surface forms a first section of the intermediate portion. The ring gear support surface defines a first outer diameter of the intermediate portion. A ring gear is mounted to the outer surface of the body. The ring gear includes an inner annular surface having a first region defining a first inner diameter and a second region defining a second inner diameter. The first region includes a sawtooth profile to establish a desired alignment of the ring gear and the body and the second region facilitating an interference fit with the ring gear support surface.

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.

A differential housing includes a body including an outer surface. The body has a first end, a second end, and an intermediate portion extending therebetween. A ring gear support member extends outwardly of the body at the second end. A ring gear support surface forms a first section of the intermediate portion. The ring gear support surface defines a first outer diameter of the intermediate portion. A ring gear is mounted to the outer surface of the body. The ring gear includes an inner annular surface having a first region defining a first inner diameter and a second region defining a second inner diameter. The first region includes a sawtooth profile to establish a desired alignment of the ring gear and the body and the second region facilitating an interference fit with the ring gear support surface.

This invention discloses a suction mouth of a plate overlayer including a shading base a suction mouth head characterizing that the suction mouth head is formed by compounding the upper part metal matrix and the lower part suction mouth opening, the said shading base is compounded by the upper metal matrix and the lower shading layer. Both the surface and the matrix of the said suction mouth opening and the shading layer are made of dark nonmetal material which strength, hardness and rigid of unit weight is close to or over the related numbers of Cu, Al, or their ordinary alloys. The said nonmetal material is an organic polymer evenly filled with dark colors having fine mechanical strength and pigment dispersivity.

The invention discloses an embedded part for a refrigerator, which comprises a body and grooves. A mounting space with an open rear side is defined in the body, a through hole is formed on the front wall of the body, the grooves are disposed on side walls of the body, and a first flange is formed at the edge of one side, which faces to the inner side of the body, of each groove. The embedded part in an embodiment of the invention is fixed firmly. In addition, punched holes on the refrigerator are omitted, cost is saved, the through hole brings convenience for fixing a screw, and the embedded part is simple in structure, convenient in installation and high in assembly efficiency. The invention further discloses the refrigerator comprising the embedded part.

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 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.

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 an automatic embedding device for a septum plug of a liquid collecting pipe of a condenser, which comprises a workbench, a rotating pipe rack, a septum embedding mechanism and a plug embedding mechanism fixed on the rotating pipe rack, and a rotating pipe rack It consists of a turntable, an installation platform fixed on the top of the turntable, and two limit and heating mechanisms fixed on the installation platform. There is also a rotating tube mechanism in the middle of the installation platform, and both the spacer insertion mechanism and the plug insertion mechanism include a top block. 1. A top block driving mechanism and a material guide frame. The limit and heating mechanism includes a fixed seat and two retractable limit blocks. The fixed seat and the limit block have corresponding limit grooves, and the liquid collecting pipe has an outer The limit ring and the inner limit ring, the middle part of the spacer has an arc-shaped concave transition part, and the spacer is interference-fitted on the inner limit ring of the liquid collection pipe. The structure of the invention is reasonable, the processing efficiency is high, and the processed The spacer of the liquid collecting pipe is connected reliably with the liquid collecting pipe, and the connection is not easy to produce leakage.

The invention relates to a device comprising an electromagnet (1) and a control unit (2) actuated by said magnet, which control unit can be for example a valve or a clutch, wherein the specified components are connected to each other by means of threads (4) and (5), having a protection of functional spaces of the components or of elastomer seals from damage and functional impairment by particles from the threads. The thread on the electromagnet side (4) and the thread on the control unit side (5) are axially in the two directions adjacent to chambers (6) and (7) which are closed by overlapping cylinder surfaces (11) and (12)on the one side and by further overlapping cylinder surfaces (13) and (14) on the other side on in each case the side facing away from the threads. The invention relates to control units actuated by an electromagnet.

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.

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.

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.

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.

The invention relates to a device consisting of an electromagnet (1) and an adjusting mechanism (2) operated by said electromagnet, which can be, for example, a valve or a clutch, wherein said part is passed through a thread ( 4) and (5) are connected to each other with a guard for preventing the functional space or the elastic seal of said part from being damaged by particles from the threads or affecting the function. Solution: The thread (4) on the electromagnet side and the thread (5) on the adjustment mechanism side are axially adjacent in both directions of the cavities (6) and (7) which on the one hand pass through overlapping cylindrical surfaces (11) and (12) and on the other hand are each closed on the side facing away from the thread by a further pair of overlapping cylindrical surfaces (13) and (14). Application: Adjustment mechanisms operated by electromagnets.