25results about How to "Prevent creep" patented technology

The utility model provides an intra-articular fracture percutaneous elastic distraction reduction fixing device which is characterized by comprising a sleeve (1) with one end open and the other end sealed, a pressure piston (4) is arranged in the sleeve (1), and a power piston (5) and a power ball (6) which are correspondingly matched are arranged on one side of the pressure piston (4). A plugging device (7) correspondingly matched with the open end of the sleeve (1) is arranged on one side of the power ball (6), a second sleeve (4a) is arranged at the other end of the pressure piston (4), one end of the second sleeve (4a) extends out of the sleeve (1), and the second sleeve (4a) is connected with a first screw (8) correspondingly matched with the second sleeve (4a). The utility model has the advantages of simple structure, convenience in use and simplicity in operation, and can avoid complications such as ankylosis and the like while maintaining fracture reduction.

The invention discloses a knocking type double-point incremental forming device and method combined with induction heating. The knocking type double-point incremental forming device comprises a passive tool head capable of conducting induction heating, an active tool head capable of conducting high-frequency knocking and a water cooling device. The driven tool head and the driving tool head are located on the two side faces of a to-be-machined plate, and the driven tool head can move along with the driving tool head. The passive tool head is subjected to induction heating through an induction coil, and the temperature of one side of the to-be-machined plate is increased; the driving tool head can knock one side of a to-be-machined plate at high frequency, and the forming performance of the to-be-machined plate is improved under the knocking action of certain amplitude and frequency. The impact tool head is adopted on one side, the forming performance of the plate can be improved under certain amplitude and frequency, meanwhile, water is sprayed to an impact point for cooling, creep deformation of the plate due to overheating is prevented, and induction heating is adopted on the other side, so that the plasticity of the material is improved.

The invention discloses a roasting device and a roasting process for preparing molybdenum concentrate in the technical field of molybdenum metal roasting. The device comprises a roasting furnace, wherein a cavity is arranged in the roasting furnace, a stirring rake is arranged in the cavity, and a central axis is rotatably arranged in the roasting furnace: a branch of the stirring rake is provided with a detachable cleaning structure, and a detachable positioning guide structure is arranged in the roasting furnace; a connecting ring is arranged in the cavity, and a guide pin slidably arranged with a movable groove is fixedly arranged on the inner wall of the stirring rake; a driving source for driving the central axis to rotate is installed in the roasting furnace; the cleaning structure comprises: a sliding sleeve, which slides with the stirring rake and is detachable; a clearance piece, which slides horizontally with the sliding sleeve; a cleaning scraper, which is rotatably arranged with the clearance piece, and the cleaning scraper is provided with a clearance groove; a pretreatment scraper, which is rotatably arranged with the cleaning scraper, and when the roasting is completed and the residual temperature of the roasting furnace still exists, the pretreatment scraper is first used for pretreatment, and then the compacted residual material is scraped off by the cleaning scraper, so that the cleaning difficulty after the residual material is completely compacted can be reduced.

The utility model relates to a fuse with an improved wiring terminal and an electric automobile with the fuse, and the fuse comprises a fuse main body which comprises a fusion tube and a melt extending in the fusion tube along the axial direction; the pair of wiring terminals are respectively arranged at two axial ends of the fusion tube and are connected with two axial ends of the fuse body, so that the fuse body is mechanically and electrically connected to an external circuit through the pair of wiring terminals; wherein each wiring terminal comprises an end cover for closing the inner periphery of the axial end part of the fusion tube and a wiring part fixed to the axial outer side of the end cover, and the end cover of each wiring terminal is of a composite structure formed by compounding a connecting part made of aluminum and a conductive layer arranged on the axial inner surface of the connecting part and made of copper; the wiring part of each wiring terminal is fixed to the axial outer side of the connecting part and is made of aluminum alloy; wherein the axial outer side of the connecting part of the end cover of each wiring terminal is provided with a connecting groove; and the wiring portion is configured to be inserted into and connected to the connection groove of the corresponding connection portion.

This invention belongs to the technical field of EPDM rubber materials, specifically relating to a high-temperature resistant steel wire reinforced hydraulic rubber hose inner rubber and its preparation method. The preparation method of the high-temperature resistant steel wire reinforced hydraulic rubber hose inner rubber of this invention includes the following steps: S1, firstly, EPDM rubber is epoxidized using hydrogen peroxide solution to obtain epoxidized EPDM rubber, and then the epoxidized EPDM rubber is modified using 4-(trimethoxysilyl)aniline to obtain modified EPDM rubber; S2, the modified EPDM rubber and silicone resin are added to a mixer for the first stage of mixing, then filler, mica powder, plasticizer, zinc oxide, sulfur, accelerator, and antioxidant are added for the second stage of mixing, followed by discharge of the rubber to obtain the high-temperature resistant steel wire reinforced hydraulic rubber hose inner rubber. This invention, through the synergistic effect of its components, ensures both good heat resistance and significantly improves wear resistance.

The utility model discloses a composite gradient yielding lining structure for a tunnel, and relates to the technical field of yielding lining structures, the composite gradient yielding lining structure comprises a main supporting soft support, a supporting assembly is arranged below the main supporting soft support, the supporting assembly comprises two fixed inner supporting frames, side fixed supporting frames are arranged on the surfaces of one sides of the two fixed inner supporting frames, and the side fixed supporting frames are arranged on the surfaces of the other sides of the two fixed inner supporting frames. Limiting convex blocks are arranged on the surfaces of one sides of the side fixing supporting frames, a center movable frame is further arranged on the bottom face of the main supporting soft support, connecting shaft bodies are arranged at the two ends of the center movable frame, and the other sides of the two connecting shaft bodies are connected with one ends of fixing inner supporting frames correspondingly; according to the tunnel lining structure, the supporting assemblies are arranged, so that elastic degradation and creep deformation caused by a single yielding layer in a long-term high-pressure environment are avoided, and the long-term stability, the maintenance efficiency and the safety of the tunnel lining structure are remarkably improved.

The utility model belongs to the technical field of metabolism cages, and provides poultry growth metabolism cage weighing equipment which comprises a metabolism cage and a weighing device, the metabolism cage is hung on a frame body through the weighing device, and an adjusting device used for adjusting the metabolism cage is arranged between the weighing device and the metabolism cage. The balance state of the metabolism cage is effectively guaranteed through the adjusting device, it is conveniently guaranteed that the gravity of the metabolism cage in the vertical direction is not affected by transverse force, the weighing accuracy of the weighing device is improved, in addition, the adjusting device is combined with the lifting device, the situation that the weighing device is pressed by the gravity for a long time and creeps is effectively avoided, and the weighing accuracy is improved. The stability and the precision of the weighing value of the weighing device are effectively ensured, and the error of the research on the growth and metabolism of the poultry is reduced.

The invention relates to a reversibly releasable coupling for a plug connection on a pipe (3) and a hose for connection to a tubular plug (1) having at least one latching shoulder or latching edge (2) which is at least partially circumferential on the outer circumference. The at least one locking element (5) assumes a locking position when the plug (1) is completely pushed in, in which locking position the locking section (7) pivots towards the plug (1) and securely engages behind the locking shoulder or the locking edge (2) of the plug (1) by means of the locking edge. Here, the locking section (7) lies completely within the locking ring (6), which is thus released in the axial direction. The elastic element (8) axially loads the locking ring (6) from the open position into a locking position completely overlapping the locking section (7). The locking element (5) is pivotable about a pivot axis (S) relative to the coupling sleeve (4) between an open position and a locked position. The locking element has a rod-shaped section (9) extending in the circumferential direction of the coupling sleeve (4), which rod-shaped section is locked relative to the coupling sleeve (4) in the open position. When the plug (1) is inserted, the section (9) is released from the latching position.

The utility model belongs to the field of respiratory metabolism cages, and provides a poultry respiratory metabolism cage weighing system which comprises an oxygen bottle, lifting devices and a weighing device, the oxygen bottle is horizontally arranged on the weighing device, the two ends of the oxygen bottle are provided with the lifting devices, and the lifting devices are used for lifting or lowering the oxygen bottle under the control of a controller. The lifting device lifts the oxygen bottle to be separated from the weighing device, the weighing device is automatically zeroed, the lifting device lowers the oxygen bottle and is separated from the lifting device, and the oxygen bottle is placed on the weighing device to be weighed and timed. According to the oxygen bottle weighing device, the lifting device and the weighing device are matched, so that the weighing device can be set to zero at intervals, creep deformation of the weighing device due to the fact that the weighing device is pressed by gravity of an oxygen bottle for a long time is avoided, the weighing precision of the weighing device is guaranteed, errors of respiratory metabolism are reduced, and the working efficiency is improved. And the accuracy of the weighing value is ensured.

This utility model discloses a novel brushless motor, including a housing, a rotor winding, a stator winding, a first bearing, a second bearing, a first pressure block, a second pressure block, and a motor shaft. The rotor winding is disposed inside the housing. The stator winding is disposed on the inner side wall of the housing and surrounds the rotor winding, and the stator winding can be connected to an external driver. The first bearing and the second bearing are mounted on the housing and are arranged on both sides of the rotor winding. The first pressure block is welded to the housing and abuts against the outer ring of the first bearing, and the second pressure block is welded to the housing and abuts against the outer ring of the second bearing. The motor shaft passes through the rotor winding, with one end connected to the inner ring of the first bearing and the other end connected to the inner ring of the second bearing. The above structure can effectively prevent the outer ring of the bearing from creeping against the housing during long-term high-speed operation of the motor, reduce wear, reduce noise and vibration, significantly extend the service life of the motor, and improve the overall operating experience.

The utility model relates to a quick charging equipment technical field provides a kind of quick charging interface sealing structure, including the lower cover and upper cover of mutual buckling, lower cover tail portion is equipped with tail plate, upper cover tail portion is equipped with the tail plug of tail plate plug-in cooperation, tail plate and tail plug are all opened a pair of wire hole, wire hole is communicated horn-shaped reverse mould hole, lower cover, upper cover and the glue injection port of upper cover form glue injection chamber, glue solidification forms the mushroom head locking structure of wrapping wire and circuit board, and mushroom head is embedded in the anchoring cavity of reverse mould hole. By abandoning plunger, adopt glue solidification and form the mushroom head locking structure of integral wrapping, completely eliminate the risk of sealing failure caused by uneven cover compression force or tolerance of traditional cable plug, eliminate water vapor / dust penetration.

This utility model relates to the field of battery technology, providing a terminal structure, a top cover assembly, a housing assembly, a single battery cell, and a battery pack. The terminal structure includes a terminal post assembly and a seal. The terminal post assembly includes a main body and a first connecting portion and a second connecting portion spaced apart from each other and arranged around the periphery of the main body. The seal is fitted onto the main body and is located between the first connecting portion and the second connecting portion. One of the first connecting portion and the seal has a first protrusion protruding towards the other, abutting against the other; and / or, one of the second connecting portion and the seal has a second protrusion protruding towards the other, abutting against the other. This prevents the seal from failing due to creep, extending its service life and ensuring the battery's sealing performance during long-cycle use.

The invention relates to an annealing treatment device for a gate plate of a gate gate of an SCR (selective catalytic reduction) denitration valve, and belongs to the technical field of heat treatment annealing luring. The annealing treatment device for the gate plate of the gate gate of the SCR denitration valve comprises a base and further comprises a displacement mechanism; and a rotating mechanism. Through cooperative use of the displacement mechanism, the rotating mechanism and the leveling mechanism, the rotating mechanism drives the gate plate of the slide plate gate to rotate through the displacement mechanism and the leveling mechanism, so that a leveling roller in the leveling mechanism rolls back and forth along the outer surface of the gate plate of the slide plate gate, and the gate plate of the slide plate gate is leveled; bending deformation of the sliding plate door caused by creep phenomena due to the fact that the strength and the elastic modulus of steel are remarkably reduced and the plasticity is remarkably improved under the action of temperature is prevented, the flatness of the sliding plate door plate in the heat treatment annealing process is guaranteed, bending deformation of the sliding plate door plate is avoided, and the service life of the sliding plate door plate is prolonged. And the quality of the gate plate of the slide plate gate after heat treatment annealing is ensured, the burden of personnel is relieved, and the heat treatment annealing quality is improved.

The present invention provides a fracturing string and a method for repeated fracturing operations in a horizontal well. The fracturing string includes: an oil pipe, which is divided into a plurality of pipe sections. The oil pipe is used as a base pipe for threaded connection with various tools of the pipe section, and provides a fracturing fluid supply channel, and runs through the casing of the horizontal well; a hanger, which is arranged on the oil pipe so that the fracturing string is fixed in the casing as a whole, and the hanger and the casing are connected to each other through slips to establish and release fixed constraints; a packer, which is provided with a plurality of packers, and the plurality of packers are connected to the oil pipe through threads; a release tool, the oil pipe includes a plurality of pipe sections connected in sequence, and the pipe section provided with the hanger is connected to the adjacent pipe section through a release tool, and the release tool is located above the hanger. The present invention solves the problems in the prior art of limited displacement of fracturing construction, easy sand burial of the fracturing string, and difficulty in salvage.

This invention provides a dielectric ion exchange membrane, its preparation method, and its application, relating to the field of membrane material preparation technology. The dielectric ion exchange membrane includes a substrate and an ion exchange membrane coated on the surface of the substrate. The ion exchange membrane comprises polyvinyl alcohol, an ion system, a UV-curable monomer, and a photoinitiator. By using UV curing technology, the crosslinking process and solvent evaporation can be precisely controlled during membrane formation, ensuring a smooth membrane surface and avoiding membrane curling caused by uneven shrinkage. The introduction of the UV-curable monomer is to form a crosslinked network under UV irradiation, inhibiting macroscopic structural flow and creep of the ion exchange membrane during film formation and service, improving the mechanical stability of the membrane, and forming a stable crosslinked structure, thereby forming a structurally stable dielectric ion exchange membrane and effectively preventing membrane curling during drying.

The invention discloses a low-pressure-change foamed EPDM (Ethylene-Propylene-Diene Monomer) material as well as a preparation method and a sealing strip thereof, and belongs to the technical field of high polymer materials. According to the material, alkali lignin is subjected to surface modification by adopting a ternary reactive deep eutectic solvent (RDES) composed of choline chloride, a functional hydrogen bond donor HBD-1 and urea; the modified alkali lignin is blended with ethylene propylene diene monomer, carbon black and the like, and HBD-1 is preferably an addition product of DOPO (9, 10-dihydro-9-oxa-10-phosphaphenanthrene-10-oxide) and GMA (glycidyl methacrylate). The problems that in the prior art, a foamed EPDM material is large in high-temperature compression permanent deformation, poor in low-temperature resistance, standard-exceeding in smell / VOC and the like are solved, and the obtained material has excellent comprehensive performance and can be used for preparing high-performance sealing strips.

The invention relates to the technical field of high-speed cables, in particular to a bending-resistant high-speed cable which comprises a spiral telescopic sheath, a prestress self-adaption mechanism and a rigid transmission wire harness which are sequentially arranged from outside to inside, and the spiral telescopic sheath is of a spiral corrugated pipe structure capable of greatly stretching out and drawing back in the axial direction and bending in the radial direction; the prestress self-adaptive mechanism is used for converting deformation of the spiral telescopic sheath into translation and / or rotation so as to isolate strain; according to the invention, through the unique layered design of flexible outside and stable inside, bending resistance can be realized on the premise that excellent electrical performance is guaranteed, and the cable can be better suitable for harsh application scenes requiring frequent plugging, repeated bending, dynamic swinging or complex three-dimensional wiring.

The invention provides a torque sensor and a manufacturing method thereof, the torque sensor comprises a sensing main body and a strain gauge, and the strain gauge is bonded to the surface of a functional area of a transition body in the sensing main body through glass solder. Compared with a mode of fixing the strain gauge and the sensing main body through an adhesive in the prior art, the connecting structure of the strain gauge and the sensing main body can effectively avoid the creep phenomenon, eliminate the influence of loads in other directions, improve the measurement precision of the torque sensor, guarantee the accuracy of torque value measurement, and improve the reliability of the torque sensor. The high-quality use experience of the user is ensured; and no adhesive is used in the manufacturing process of the torque sensor, so that the problem of glue aging can be eliminated, the structural stability of the torque sensor is ensured, and the service life of the torque sensor is ensured.

The utility model discloses an ECOM pipeline fixing device, which relates to the technical field of pipeline fixing and comprises a gas filling row, one end of the gas filling row is fixedly connected with an elastic covering layer, one end, far away from the gas filling row, of the elastic covering layer is fixedly connected with a gas fixing row, one side of the gas filling row is fixedly connected with a correction tape, and the outer surface of the gas filling row is provided with a self-adhesive strip. One side of the gas fixing row is fixedly connected with a correcting and pasting belt, a self-adhesive strip is arranged on the outer surface of the gas filling row, the correcting and pasting belt is connected with the self-adhesive strip in an adsorption mode, the gas filling row is composed of a plurality of gas injection rollers and abrasive particle columns, a plurality of tentacles are arranged on the abrasive particle columns at intervals, and the gas filling row and the gas fixing row are fixedly connected through an elastic covering layer. According to the ECOM pipe fixing device, the contact clamping area with the ECOM pipe is increased, the fixing requirement for the long ECOM pipe scattered on the ground is met, the ECOM pipe can be completely wrapped by the gas injection roller and the abrasive particle column which are filled with gas, and the outer wall of the pipe cannot be damaged by the elastic rubber material.

The invention discloses a roasting device and a roasting process for molybdenum concentrate preparation in the technical field of molybdenum metal roasting, the roasting device comprises a roasting furnace, a cavity is formed in the roasting furnace, a stirring rake is arranged in the cavity, and a middle shaft is rotationally arranged in the roasting furnace; a detachable positioning guide structure is arranged in the roasting furnace; a connecting ring is arranged in the cavity; a guide pin which is arranged in a sliding manner relative to the movable groove is fixedly arranged on the inner wall of the stirring rake; a driving source for driving the middle shaft to rotate is mounted in the roasting furnace; the cleaning structure comprises a sliding sleeve which slides with the stirring rake and is detachably arranged; the receding piece and the sliding sleeve are transversely arranged in a sliding mode. The cleaning scraping plate and the receding piece are rotationally arranged, and a receding groove is formed in the cleaning scraping plate; and the pretreatment scraping plate and the cleaning scraping plate are rotationally arranged, when roasting is completed and residual heat of the roasting furnace remains, pretreatment is conducted through the pretreatment scraping plate, then hardened excess materials are scraped away through the cleaning scraping plate, and the cleaning difficulty after the excess materials are completely hardened can be reduced.

The utility model relates to the technical field of connecting pieces, discloses a creep-resistant socket-and-spigot type connecting piece of a PPH homopolymerization pipeline for a high-temperature working condition, and solves the problems that the PPH homopolymerization pipeline is easy to creep due to the fact that an existing socket-and-spigot type connecting piece cannot effectively protect a joint of the PPH homopolymerization pipeline under the high-temperature working condition, so that a gap is generated, and leakage is caused. The device comprises a first pipeline, a mounting ring is fixedly mounted on the surface of one end of the first pipeline, a second pipeline is arranged on one side of the mounting ring, four extrusion pads are annularly and fixedly mounted on one side of the second pipeline at equal intervals, a slot is formed in the end, close to the second pipeline, of the first pipeline, and a plug is fixedly mounted at the end, close to the first pipeline, of the second pipeline; the plug is fixedly mounted in the slot; the socket type connecting piece can effectively protect the PPH homopolymerization pipeline joint under the high-temperature working condition, creep deformation of the PPH homopolymerization pipeline joint is avoided, meanwhile, the sealing effect is improved, and medium leakage is avoided.

The invention discloses a continuous pipe layered gas injection process pipe column and a working method thereof. The continuous pipe layered gas injection process pipe column comprises an inner continuous pipe and an outer continuous pipe. The inner continuous pipe is located in the outer continuous pipe, and the outer wall of the inner continuous pipe and the inner wall of the outer continuous pipe are arranged at intervals. An anchor, a first packer, a gas injection valve and a second packer are sequentially arranged on the outer wall, close to the bottom, of the outer continuous pipe from top to bottom, and the bottom of the outer continuous pipe and the bottom of the inner continuous pipe are connected in a sealed mode. An independent layered gas injection channel is formed, the ground flow is adjustable, and a new technical thought is provided for shaft matching of layered gas injection in a gas drive test and improvement of the oil field recovery ratio.

This invention discloses a downhole insertion-type long-lasting isolating production combination tool, relating to the field of long-lasting isolator technology. It includes a central tube, with a fixing block fixed at an equal angle on the outer side of the upper end of the central tube. The fixing block is fixed to a connector, and a sealing mechanism for sealing the production pipe is slidably connected to the inner side of the connector. This downhole insertion-type long-lasting isolating production combination tool employs a cleaning mechanism that converts axial gravity into rotational torque through a combination of spirally distributed rollers. When the tool is lowered, the arc-shaped panel adheres tightly to the pipe wall under the thrust of the airbag. The friction between the spiral rollers (30°-60° rise angle) and the pipe wall generates a tangential component force that causes the entire rotating assembly (ring, arc-shaped panel, scraper) to rotate around the central tube. The scraper rotates accordingly, scraping away the circumferential attachments. This process continues throughout the entire lowering stroke, achieving a pretreatment effect on the well wall of the sealing section, significantly improving the contact quality and working life of the subsequent sealing sleeve and metal slips.

The embodiment of the present application provides a diaphragm and a preparation method thereof, a battery, a battery pack and an electric device. The diaphragm provided by the embodiment of the present application comprises a diaphragm base and an inorganic coating layer arranged on at least part of the surface of the diaphragm base; the diaphragm base comprises a diaphragm substrate and a whisker material dispersed in the diaphragm substrate. The diaphragm of the embodiment of the present application has good elastic modulus and creep recovery rate, and can improve the cycle life and safety performance of the battery.

The invention provides a bearing adjusting device, a shaft system and a wind generating set. The bearing adjusting device is used for being installed in a shaft system, the shaft system comprises a rotating shaft, a bearing and a bearing seat, the rotating shaft is rotatably installed on the bearing seat through the bearing, and the bearing adjusting device is used for being arranged between the bearing seat and a fixed ring of the bearing and comprises a power loading assembly. The power loading assembly comprises a fixed end and a loading end capable of moving relative to the fixed end, and the fixed end and the loading end are used for being arranged between the bearing seat and a fixed ring of the bearing in the annular direction of the bearing and used for applying loads to the bearing seat and the fixed ring in the annular direction. And the two ends of the bearing adjusting device in the annular direction are pressed against the fixed ring and the bearing seat respectively. By means of the bearing adjusting device, the fixed ring can be prevented from wriggling relative to the bearing seat in the annular direction, and therefore the bearing is prevented from being damaged.