16801 results about "Gasket" patented technology

The invention discloses an industrial bolt intelligent identification and accurate grabbing control method and system based on depth vision, and the method comprises the steps: obtaining multispectral image data, carrying out the fusion detection of the nut edge, thread texture and other features of a bolt through an enhanced YOLOv8 network, screening an effective bolt, and eliminating the interference of a gasket, chippings and the like; extracting feature points to solve a 6DoF attitude, fusing vibration data of the mechanical arm to realize motion compensation, and outputting a three-dimensional coordinate and an attitude angle under a coordinate system of the mechanical arm; the three-dimensional coordinates are converted into motion coordinates, and the grabbing position is corrected in combination with the normal vector of the assembly surface; planning a path and generating grabbing strategies such as clamping jaw opening amplitude and clamping force matched with the bolt specification; the clamping force is dynamically adjusted based on feedback of the six-dimensional force sensor, and accurate grabbing is achieved. The system comprises a visual perception subsystem, an intelligent decision-making subsystem and a precise execution subsystem. The bolt recognition precision and grabbing stability in the complex environment are improved, and the assembly requirements of bolts of multiple specifications can be met.

The invention relates to a paraffin type thermostat. The paraffin type thermostat comprises a main valve 1, a cover and seal gasket assembly 2, an upper support 3, a rubber pipe 4, a valve seat 5, a vent hole 6, a lower support 7, paraffin 8, an inductor 9, a bypass valve 10, a central rod 11 and a spring 12. The upper support, the lower support and the valve seat of the thermostat are riveted into a whole. The upper end of the central rod is fixed to the center of the upper support. The lower portion of the central rod is inserted into a central hole of the rubber pipe. The lower end of the central rod is conical. A cavity between the rubber pipe and a shell of the inductor contains the paraffin. The upper portion and the lower portion of the shell of the inductor are provided with the main valve and the bypass valve which are in linkage. The vent hole is formed in the main valve. The paraffin type thermostat is high in heat conductivity and guarantees that an engine cannot be excessively cold.

A container system comprises a container that includes a container body with a storage cavity and a lid assembly releasably connected to the container. The lid assembly has a lid that includes a gasket received in a channel on the lid, and a latch pivotally connected to the lid. The container may also include a perimeter lip extending outward around an entire perimeter of the container opening of the container. The latch may include a latch rib, such that when the latch is engaged with the perimeter lip of the container, the latch rib is located over the channel of the lid. The channel on the lid that receives the gasket may also include a channel rib.

The invention relates to the technical field of optical lens clamp spectacle frames, in particular to a three-jaw clamp spectacle frame capable of adjusting load of optical lenses. According to the technical scheme, the miniature three-jaw clamp comprises a miniature three-jaw clamp chuck, the miniature three-jaw clamp chuck comprises a chuck body with a round hole in the middle, three annular and uniform claws are slidably mounted on the end face of the chuck body, and polyurethane gaskets are mounted on the inner sides of the claws. A driving mechanism for driving the three claws to synchronously and radially move is arranged on the chuck body; the lens angle-adjustable lens bracket is used for mounting and supporting the micro three-jaw clamp chuck, the lens bracket comprises a three-jaw clamp fixing plate, and a chuck positioning groove and a chuck positioning hole communicated with the chuck positioning groove are formed in the three-jaw clamp fixing plate. According to the invention, through deep fusion of the self-centering symmetric clamping structure and optical adjustment requirements, a lens fixing solution which is more efficient, more reliable and higher in universality is provided for the field of precision optics.

The invention discloses a preparation method of a broadband heat-conducting and wave-absorbing gasket and the broadband heat-conducting and wave-absorbing gasket, and relates to the technical field of wave-absorbing materials. The preparation method of the broadband heat-conducting wave-absorbing gasket comprises the following steps: S300, adding pretreated Fe-Si-Al powder into a reaction system of polypyrrole under the protection of nitrogen, and continuously stirring until polypyrrole forms a coating layer on the surface of the pretreated Fe-Si-Al powder; s400, after the reaction in the step S300 is finished, separating a reaction mixture in the step S300 to obtain polypyrrole coated Fe-Si-Al powder, and washing and drying the polypyrrole coated Fe-Si-Al powder; and S500, mixing the dried polypyrrole coated Fe-Si-Al powder with a polymer matrix material, a heat-conducting filler, a curing agent, a dispersing agent, an inhibitor and a catalyst to obtain a mixture, pressing the mixture into sheets, and curing the sheets to obtain the broadband heat-conducting wave-absorbing gasket. By the adoption of the technical scheme, the advantages of being capable of effectively absorbing electromagnetic waves in a broadband and good in heat conduction performance are achieved.

The invention particularly relates to a double-sealing special-shaped ball valve which comprises a valve body, a valve rod rotating and lifting operation mechanism movably installed at the top of the valve body and a connector arranged at the bottom end of the valve rod rotating and lifting operation mechanism. A notch is formed in the top of the special-shaped ball valve clack movably installed in the valve body and can be tensioned, a thin-layer slotting plate part is arranged at the bottom of the special-shaped ball valve clack, deformation is easier, a side through opening is formed in the middle of the special-shaped ball valve clack and used for switching rapid water passing, and therefore the whole structure is an inverted-C-shaped special-shaped ball, and the special-shaped ball valve has the high opening and contracting functions. The left side and the right side of the special-shaped ball valve clack shrink and deform towards the middle portion, the two inclined holes close the notch in the top of the special-shaped ball valve clack, so that the second sealing gasket is separated from the first sealing gasket, and at the moment, in the whole rotating opening and closing process of the valve, the second sealing gasket of the special-shaped ball valve clack and the first sealing gasket of the connecting pipe do not rub; the service life is long.

The invention discloses a quick-release modularized tubing head sealing assembly which comprises a bridging carrying part and a Christmas tree detection mechanism, a casing head measuring part sleeved with a bolt is arranged at the output end of the bridging carrying part, and a tubing head sealing part sleeved with a bolt is arranged at the top end of the casing head measuring part. And the output end of the tubing head sealing component is provided with a Christmas tree detection mechanism sleeved by a bolt. According to the device, a sealed cabin shell and a lower arc-shaped inserting sleeve are inserted above a bridging pipeline in an arc-shaped manner, and after a middle backing ring and a middle lining pipe are connected with a bottom ball limiting block, a supporting cabin and a rubber fixing ring in a sleeving and inserting manner, a top backing ring, a ring bolt, an upper sleeving cabin and a top ball limiting block are further connected in a sleeving manner; the structure is a multi-layer annular sleeving installation structure, so that the equipment can be quickly disassembled, assembled and replaced when the equipment needs to be maintained, the use efficiency of the equipment is improved, and the use of the equipment is not influenced.

The invention provides a maglev traffic track structure and a construction method thereof. The maglev traffic track structure comprises a bridge deck, a maglev track assembly and an induction plate assembly. The magnetic levitation rail assembly comprises a magnetic levitation rail, a hexagon nut, a gasket, a thin nut and a screw. The induction plate assembly comprises an iron core, an aluminum plate, shear nails and screws. The iron core is vertically welded and fixedly connected with the shear nails, the shear nails and the bridge deck are cast and anchored into a whole, the iron core is arranged on the upper end face of the bridge deck, and the aluminum plate is installed on the upper end face of the iron core through screws; the construction method comprises the steps that the prefabricated bridge deck slab is modularly poured in a factory, the magnetic levitation rail is installed, adjusted and locked in the factory, the levelness and straightness of the magnetic levitation rail are measured again, and the bridge deck slab is installed on a construction site. According to the invention, high-precision, high-efficiency and low-cost installation of the maglev traffic track is realized.

A substrate holder includes a base configured to receive a substrate; a cover configured to mateably engage with the base, the cover defining an opening formed by inner sidewalls; and a removable insert defining a surface, the removable insert being configured to be received within the opening of the cover. The removable insert includes a gasket; a projection coupled to the gasket; and at least two insert tabs extending from opposite sides of the removable insert, each insert tab being configured to engage with at least one of the inner sidewalls forming the opening of the cover.

A pipe repair device includes a gasket defining a substantially cylindrical shape, the gasket defining a gasket top end and a gasket bottom end opposite the gasket top end, a gasket outer surface, and a gasket inner surface opposite the gasket outer surface, the gasket outer surface defining a plurality of raised ridges, the raised ridges extending about a circumference of the gasket outer surface; and a spring engaging the gasket inner surface, wherein the pipe repair device is configurable in an expanded configuration and one of a compressed configuration and a folded configuration, and wherein the spring biases the pipe repair device to the expanded configuration.

A method of repairing a pipe includes providing a pipe repair device, the pipe repair device comprising a spring and a gasket, the gasket defining a gasket top end, a gasket bottom end, and a gasket outer surface, wherein the gasket outer surface defines a plurality of raised ridges and recessed dimples; biasing the pipe repair device to an expanded configuration with the spring inside of the pipe; engaging the raised ridges of the gasket outer surface with an inner wall of the pipe; and creating a suction force between each of the recessed dimples and the inner wall of the pipe to retain the pipe repair device against the inner wall.

The invention discloses an automobile light-weight aluminum part connecting process and equipment based on laser welding, and relates to the technical field of automobile aluminum part laser welding, the equipment is based on a base body, a man-machine interaction control screen is arranged at the front end of the base body, and a driving motor and a threaded rod are arranged on the side wall of the base body; a lateral protection metal plate is fixed to the top end of the tool, a parameter adjusting plate is arranged on one side of the tool, a rotary station driving motor and a self-adaptive clamping tool are fixed to the parameter adjusting plate, an anti-scratching gasket is arranged on the inner wall of the tool in the circumferential direction, and the outer side of the tool is connected with a feeding air cylinder through a linkage lug base. The air cylinder is connected with a pressure controllable extrusion table through a first linkage lug base and a force transmission bending arm. A main bearing support is further welded to a base body, a laser welding head is installed on the main bearing support through a jacking air cylinder, a linear push rod and a fine adjustment lifting table, adjustment stability is guaranteed in cooperation with a guide structure, aluminum parts are prevented from being damaged through flexible clamping, precision is improved through multi-dimensional adjustment, and the precision welding requirement is met.

The utility model provides an underwater wet plugging connector convenient for oil injection, which comprises a plug assembly and a socket assembly which can be plugged with each other, the socket assembly comprises a cylindrical socket shell and a second insulating base arranged in the socket shell, the second insulating base is internally provided with a second oil cavity, and the second oil cavity is internally provided with a second oil outlet. A screw mounting hole is formed in the rear end face of the second insulating base in the axial direction, a guide screw is mounted in the screw mounting hole, the screw mounting hole is communicated with the interior of the second oil cavity, and the guide screw and the screw mounting hole are sealed through a sealing gasket. The installation hole of the guide screw is used as the oil injection hole, multiplexing of structural functions is achieved, on the premise that the oil injection hole is not additionally formed, the requirements for guiding, rotation prevention and the like are met, the problem of an oil injection channel is solved, the structure of the connector is more concise and efficient, and the design and manufacturing cost is reduced.

The utility model relates to a hollow closed sealing rubber mat mold system. Products produced by an existing die of a sealing rubber mat of a hollow closed structure are low in qualified rate of appearance quality and size, and a die core cannot be positioned. The mold comprises a sealing rubber mat semi-finished product mold and a sealing rubber mat finished product mold, the sealing rubber mat semi-finished product mold comprises a semi-finished product upper mold, a semi-finished product middle mold, a metal mold core and a semi-finished product lower mold, and a plurality of positioning columns for positioning the metal mold core are arranged on the semi-finished product lower mold; the sealing rubber mat finished product mold comprises a finished product upper mold, a finished product middle mold and a finished product lower mold, and a plurality of sealing rubber mat hole site marks are arranged on the finished product lower mold; cloth clamping grooves are formed in the sealing rubber mat semi-finished product mold and the sealing rubber mat finished product mold. According to the utility model, the metal mold core is positioned through the positioning column, so that the metal mold core is not easy to deviate, and redundant fabric is clamped and fixed by adopting the cloth clamping space, so that the appearance quality of a product is improved.

The invention relates to the technical field of speed reducers, in particular to a multi-stage coaxial speed reducer which comprises an outer cylinder, a first-stage gear ring and a second / third-stage gear ring are arranged in the outer cylinder, and a first-stage speed reducer, a second-stage speed reducer and a third-stage speed reducer are sequentially arranged in the outer cylinder. The first-stage planet carrier framework is axially fixed, and the second-stage planet carrier framework and the third-stage planet carrier framework axially float; gaskets / thrust bearings are arranged between stages to achieve axial supporting and friction reduction, and the last-stage three-stage planet gears adopt staggered-tooth gears to eliminate meshing clearances. Through the coaxial compact integrated design, the large reduction ratio and the compact structure are both considered; due to the lubricating circulation design of inter-stage antifriction supporting and self-adaptive rotating speed, the friction loss is greatly reduced, and the transmission efficiency is improved; the structure of staggered tooth clearance eliminating, elastic buffering and shaft system stabilizing effectively reduces gear abrasion and impact loads, remarkably prolongs the service life, has the advantages of being high in transmission precision, fast in response and stable in operation, and can be used for precise transmission, automobile active stabilizer bars and other scenes.

The invention relates to a fiber composite material uniform compaction device and a compaction method. The compaction device comprises a sealing gasket, a lower mold plate, a heating and cooling channel, an upper mold plate, a metal film, an oil pump, a base and the like, forming surfaces are arranged on the two opposite surfaces of the lower mold plate and the upper mold plate, and fiber prepreg is laid on the forming surfaces; the metal film is located on the lower side of the upper die plate, a metal bag cavity is formed between the metal film and the upper die plate, and the oil pump is connected with the metal bag cavity and fills oil into the metal bag cavity to generate forming pressure. The lower die plate is fixed to the base, and heating and cooling channels are arranged in the upper die plate and the lower die plate. The interior of the metal bag cavity is pressurized through the oil pump, uniform pressure is applied to all the surfaces of the fiber prepreg through expansion of the metal bag cavity, and therefore the problems that a traditional hard mold cannot apply uniform pressure to the curved surface and a soft mold cannot be attached to a blank in the whole process, so that a fiber composite material is not compacted sufficiently are solved.

The invention relates to the technical field of petrochemical equipment sealing, in particular to a flange sealing performance evaluation method based on bolt axial stress, which comprises the following steps: establishing a nonlinear stress relationship between a gasket and bolt axial force; establishing a relationship between the axial stress of the bolt and the sealing contact stress of the contact surface of the gasket under different working pressures; constructing a three-dimensional model of a real sealing surface; establishing a three-dimensional model of the sealing surface contact process; obtaining the change of a leakage gap between the contact surfaces under different contact stresses, and establishing a relation model of the leakage gap of the contact interface and the sealing contact stress; establishing a quantitative evaluation model among the sealing contact stress, the leakage clearance and the leakage rate; obtaining the contact stress under the actual working condition, and calculating whether the corresponding leakage rate meets the tightness judgment standard or not so as to judge the sealing state of the flange. The invention aims to solve the technical problem that the metal sealing performance of in-service flange connection cannot be quantitatively and online evaluated in the prior art.

The utility model relates to the technical field of valve installation assemblies, in particular to a combined safety gasket for valve sealing. According to the technical scheme, a cylindrical main body sealing combination column is included, the main body sealing combination column is made of stainless steel materials, and an all-through assembly combination connecting hole is formed in the center of the main body sealing combination column. Arc-shaped first limiting matching plates which are integrally formed and evenly distributed in the circumferential direction are arranged at the center position, in the height direction, of the interior of the assembly combination connecting hole, and second assembly limiting columns which are distributed in the circumferential direction are arranged at the lower end of the assembly combination connecting hole; a circle of second limiting matching plate is arranged at the position, located at the lower end of the first limiting matching plate, in the assembling combination connecting hole. The utility model has the advantages that: when in use, through the two groups of limiting structures arranged inside, the end parts of pipeline components of which the two ends are matched can be inserted and combined, the stop matching effect can be achieved during assembly, and the position stability during installation is better.

The invention relates to the field of composite material ultrathin laminated plates, in particular to a preparation method of a SiC fiber reinforced Ti-based composite material ultrathin laminated plate. The method comprises the following steps: plating Ti alloy on the surface of SiC fiber by using a physical vapor deposition method; the titanium alloy foil is subjected to acid pickling to remove a surface oxide layer and impurities; the plated fibers are tightly arranged to form a SiCf / Ti alloy plate, the upper surface and the lower surface of the SiCf / Ti alloy plate are bonded to a titanium alloy foil through an adhesive, and a foil-plate-foil prefabricated body is manufactured; sealing the periphery of the prefabricated body, covering gaskets on the upper surface and the lower surface of the prefabricated body, removing the adhesive from the prefabricated body, and placing the prefabricated body in a vacuum hot-pressing mold; and a hot-pressing process is adopted to realize densification composite molding of the laminated plate. According to the method, uniform distribution of SiC fibers is achieved, the mechanical property of the material is effectively improved, the surface flatness is good after the laminated plate is prepared, and the method is suitable for weight reduction application of aerospace structural parts such as skins and reinforcing ribs.

The invention relates to the technical field of press-fitting devices, in particular to an automatic press-fitting device for a motor, an oil cylinder and a bearing gasket. The device comprises a workbench, a controller, a support arranged on the workbench, a placing seat arranged on the support and used for placing a fan cover part, and a press-fitting mechanism arranged on the support and used for pressing a bearing gasket into an oil cylinder and pressing the oil cylinder into a bottom plate part at the same time. The push-in mechanism is used for pushing the bearing gasket into the press-fitting mechanism, the supporting mechanism is in linkage with the press-fitting mechanism and used for abutting against the bottom plate part, and the press-fitting mechanism and the push-in mechanism are both electrically connected with the controller. The automatic press-fitting device is high in machining efficiency, and machined products are high in consistency.

Door assemblies for insulated boxcars and refrigerated boxcars are disclosed. In some embodiments, the door assemblies include a generally planar base, a liner spaced from the rear surface of the base. The liner includes a central portion and a perimeter portion surrounding the central portion. The door assemblies additionally include a perimeter gasket attached to the perimeter portion and surrounding the central portion. The door assemblies further include first and second end wall members. The base, the liner, and the first and second end wall members define an interior compartment therebetween. The door assemblies additionally include insulation disposed within the interior compartment, wherein the first and second end wall members are shaped such that insulation is disposed within one or more planes that are perpendicular to the base and to the perimeter portion of the liner and that include a portion of the perimeter gasket.

The invention provides an electric pile assembly line which comprises a preassembling branch line, a material preparation mechanism, a transfer mechanism and a final assembly branch line, the preassembling branch line is adjacent to the final assembly branch line, the material preparation mechanism is arranged at one end of the final assembly branch line, the transfer mechanism is located between the final assembly branch line and the material preparation mechanism, and the material preparation mechanism is used for storing diaphragms, bipolar plates and sealing gaskets. The preassembled branch lines are used for assembling the liquid flow frames, the partition plates and the blankets to form electrodes; the transfer mechanism is used for transferring the diaphragms, the bipolar plates, the sealing gaskets and the electrodes on the adjacent preassembled branch lines to the final assembly branch lines so as to stack the diaphragms, the bipolar plates and the sealing gaskets to form an electric pile. According to the invention, the distances between the transfer mechanism and the material preparation mechanism, the general assembly branch line and the adjacent pre-assembly branch line are equivalent, so that bipolar plates, sealing gaskets and diaphragms on the material preparation mechanism and electrodes on the pre-assembly branch line can be well transferred and stacked on the general assembly branch line to form an electric pile, the space layout is reasonable, the occupied production space is small, the cost is reduced, and the production efficiency is improved. The production efficiency is improved.

The invention relates to a stroke-sectioned adjustable variable-damping inflatable hydraulic multi-damping device, and belongs to the technical field of vibration control. Comprising a roll shaft support assembly, a working cylinder assembly, a spring damping assembly and a piston mechanism assembly. The working cylinder assembly is mainly composed of a connecting pull ring, a main liquid storage cylinder, a limiting device, tightness adjusting threads, a piston rod connecting position, an auxiliary liquid storage cylinder and an air storage cylinder. The spring damping assembly is mainly composed of an adjusting spinning roller, a damping spring, a spinning roller damping gasket and a spring damping gasket. The piston mechanism assembly is composed of a piston rod and driving pistons on the two sides. The roller shaft support assembly is composed of a roller shaft fixing support and a pin. Through mechanism linkage of the liquid storage cylinder and the air storage cylinder, the inflatable hydraulic damping device is formed, and the purposes of damping changing and vibration reduction are achieved. The shock resistance and the transmission efficiency of a vibration reduction system can be improved, the energy consumption effect, the structural rigidity and the stability are enhanced, and the advantages of being simple in structure, convenient to implement and the like are achieved.

The invention discloses an on-machine measurement assistive device and method for abrasion of a discrete edge end mill. The auxiliary tool comprises a fixing clamp, a worm and gear and rack composite lifting mechanism, a bevel gear driven pivotal bearing mechanism, a camera platform, an industrial camera and a laser gradienter. The fixing clamp comprises a bolt and a gasket; the invention discloses a worm and gear and rack composite lifting mechanism. A bevel gear drives a pivotal bearing mechanism. The measuring method comprises the following steps: vertically lifting and positioning the camera platform by driving the worm and gear mechanism; horizontal rotation positioning of the camera platform is achieved by driving the bevel gear mechanism, the laser gradienter provides position reference, the industrial camera collects cutter abrasion images, and the image processing unit analyzes and processes the collected images and calculates abrasion loss. On-machine real-time monitoring of abrasion of the discrete edge end mill can be achieved, automatic abrasion measurement of chip separating grooves of different heights is completed, frequent manual adjustment is avoided, and the measurement precision and reliability are improved.

A soaking-device is usable to soak a given body part of a user. The body part may be a face or a portion of the face of the user. The user may be a person or other animal. The soaking-device includes a vessel-subassembly. The vessel-subassembly includes a wettable-subassembly. The wettable-subassembly itself and / or interaction of the wettable-subassembly with a part of the vessel-subassembly, its outermost-shell, may not utilize screws or the like mechanical fasteners. The wettable-subassembly may include a neck-gasket for removable physical contact with a neck portion of the user. The wettable-subassembly is configured to hold a volume of an immersion-liquid for the soaking of the body part. Prior to use, the volume of the immersion-liquid may be heated or cooled. A breathing-apparatus may be used. A tower may be placed next to the wettable-subassembly to shine light into and / or to release bubbles into the immersion-liquid.

The invention discloses an intelligent control valve with a self-adaptive sealing structure, and relates to the technical field of valves, the intelligent control valve comprises a valve main body, a self-adaptive sealing mechanism is arranged in the valve main body, a control box matched with the self-adaptive sealing mechanism is arranged on the valve main body, and the valve main body comprises a valve body, a valve rod and a gate plate; a valve seat groove in sliding fit with the gate plate is formed in the valve body, the self-adaptive sealing mechanisms comprise sealing bottom rings, sealing side rings, piston rings and sealing gaskets and are installed on the left side and the right side of the valve seat groove, and the control box comprises a box body, a controller, a pressure regulating pipe and a motor and is installed at the lower end of the valve body. The valve has the advantages of automatically compensating sealing abrasion, monitoring the sealing state in real time and intelligently regulating and controlling, and the problems that a traditional valve is poor in sealing performance, high in maintenance cost and lack of real-time monitoring are solved.

The invention discloses a modular radiator with a detachable function, which comprises a radiating machine box, a radiating unit seat is arranged in the radiating machine box, a radiating unit is arranged on the radiating unit seat, and the radiating unit seat and the radiating unit seat are fixed together through an insulating screw; a controller for controlling the heat dissipation unit seat and the heat dissipation unit, and a power supply wiring unit are arranged outside the heat dissipation machine box; an air inlet grille and an exhaust grille are mounted at the two ends of the heat dissipation machine box; channel modules are installed in a top cover and a bottom cover which are fixedly installed on the upper portion and the lower portion of the heat dissipation machine box, the channel modules are in butt joint, and sealing gaskets are arranged at joints. Through staggered work and modular design, efficient heat dissipation and convenient maintenance are achieved. The device can be flexibly arranged, air leakage is prevented, and the heat dissipation process is accurately regulated and controlled. Meanwhile, fan driving is abandoned, noise is reduced, and the device is suitable for scenes with strict noise requirements.

A valve element rotor assembly of the electric valve comprises a valve shaft assembly, a valve element assembly, a first elastic piece, a second elastic piece and a gasket component, the valve shaft assembly comprises a first valve shaft through hole part, a second valve shaft through hole part and a containing part, the first elastic piece and the gasket component are located in the containing part, the valve shaft assembly further comprises a first valve shaft abutting part, a second valve shaft abutting part, a third valve shaft abutting part and a fourth valve shaft abutting part, and the first elastic piece abuts against the second valve shaft abutting part and the gasket component. The gasket component can abut against the third valve shaft abutting part; the valve element assembly is arranged on the valve shaft assembly in a penetrating mode and penetrates through the gasket component hole part, the valve element assembly comprises a first valve element abutting part, a second valve element abutting part and a third valve element abutting part, the first valve element abutting part can abut against the first valve shaft abutting part, the valve element assembly is sleeved with the second elastic piece, and the second elastic piece abuts against the fourth valve shaft abutting part and the third valve element abutting part. The second valve element abutting portion can abut against the gasket component.

The invention discloses a fine gap-adjustable tilting pad bearing and a control method, and belongs to the technical field of bearings, and the fine gap-adjustable tilting pad bearing comprises a bearing body, pads, pre-tightening screws, set screws, a cover plate, a displacement amplification structure, pre-tightening bolts, elastic gaskets and piezoelectric ceramic stacks. A plurality of tilting pads are arranged on the inner arc surface of the bearing body and are matched with the bearing body through a spherical support; four radial grooves are formed in the outer arc face in the circumferential direction and are opposite to the centers of the four tile blocks respectively. A notch of the radial groove is connected with a cover plate, is internally provided with a piezoelectric ceramic displacement amplification mechanism and is connected with the spherical support through a positioning pin; a piezoelectric ceramic stack is arranged between a left boss and a right boss of the mechanism and is pre-tightened by a pre-tightening bolt and an elastic gasket. According to the invention, the inverse piezoelectric effect of piezoelectric ceramics is utilized, a vibration and non-linear suppression method is provided, an advanced control algorithm is matched, the piezoelectric ceramics stack is electrified and contracted, a displacement amplification effect is generated through a displacement amplification mechanism, the tile gap is finely adjusted, and the high-performance requirement of modern rotating machinery is met.

The invention relates to the technical field of injection molding, in particular to a high-efficiency encapsulation injection molding method for iron cores of a motor inner stator and a motor rotor, which comprises the following steps of: A, pre-classifying the iron cores; b, preparing a mold structure; c, matching and mounting gaskets; d, loading the iron core; and E, injection molding. Through iron core pre-classification, preparation of the adjustable gasket combination in the mold insert and accurate matching and installation of the gaskets, the size of the mold cavity can dynamically, efficiently and accurately adapt to iron core laminations with different thickness deviations. And the purchase cost of the iron core coiled material is reduced. And meanwhile, by adjusting the gasket combination instead of manufacturing inserts with various heights, the machining cost and the management complexity of mold spare parts are effectively reduced. The common defects of excessive flashes, unqualified appearance and size and the like in rubber-coated injection molding products are thoroughly eliminated, the product quality is ensured, the production efficiency and the material utilization rate are improved, and therefore the problem of high production cost in a traditional process is solved.