78results about How to "Avoid early failure" patented technology

A semiconductor power device is supported on a semiconductor substrate with a bottom layer functioning as a bottom electrode and an epitaxial layer overlying the bottom layer as the bottom layer. The semiconductor power device includes a plurality of FET cells and each cell further includes a body region extending from a top surface into the epitaxial layer. The body region encompasses a heavy body dopant region. An insulated gate is disposed on the top surface of the epitaxial layer, overlapping a first portion of the body region. A barrier control layer is disposed on the top surface of the epitaxial layer next to the body region away from the insulated gate. A conductive layer overlies the top surface of the epitaxial layer covering a second portion of the body region and the heavy body dopant region extending over the barrier control layer forming a Schottky junction diode.

The invention discloses a fault predication and service life evaluation system of a wind power main bearing. The fault predication and service life evaluation system comprises a data acquisition unit,a data storage unit, a fault predication unit and a service life evaluation unit, wherein the data acquisition unit comprises a plurality of sensors for detecting a vibration component and a temprature signal of the wind power main bearing and a pressure signal in a cavity of the main bearing, and a data acquisition module connected with the plurality of sensors; the data storage unit is used forreceiving data and storing; the fault predication unit is used for carrying out principle component analysis on the data transmitted by the data storage unit, so as to realize fault predication of the wind power main bearing; the service life evaluation unit is used for predicating a residual service life of the main bearing through carrying out the principle component analysis on the data transmitted by the data storage unit. The invention further discloses a fault predication and service life evaluation method of the wind power main bearing. According to the fault predication and service life evaluation system, after the data is acquired, the data is subjected to PCA (Principal Component Analysis) processing; bearing faults are predicated based on a neural network model; the service life of the bearing is predicted based on a similarity principle, and real-time lubricating adjustment of the bearing is also realized based on a predication result.

The invention discloses a disc cutter type multiple drill bit suitable for a hard-to-drill stratum. The disc cutter type multiple drill bit comprises a drill bit body, a plurality of cutter wings extending to the drill bit body, a disc cutter rotatably connected relatively to the drill bit body, and a water hole or a nozzle formed in the drill bit body; a plurality of first groups of cutting teeth are formed in the cutter wings, a slot is formed in the tooth surface of the cutter wing to fix the first group of cutting teeth, the disc cutter comprises a disc cutter body and disc cutter teeth arranged on the disc cutter body, the contour line of a body of at least one cutter wing and the contour line of a body of at least another cutter wing have at least one mismatched area in the common coverage area and at least one matched point or matched area. The structural feature enables the drill bit to work in an asynchronous cutting manner, so that the longitudinal abrasion length of the drill bit is increased, the service life of the drill bit is prolonged, in addition, the drill bit is kept in a high specific pressure drilling state in the whole drilling process, and the capability of the drill bit drilling in a rock is strengthened. Therefore, and the drilling speed and the service life of the drill bit in the hard-to-drill stratum are increased and prolonged.

The invention a fault detection and response method by applying a robot in numerical control lathe machining. A programmable logic controller is used for simultaneously controlling the robot, a loading and unloading device and a plurality of numerical control machine tools to carry out self-inspection according to the steps before the production is started, the programmable logic controller displays the corresponding fault codes on a human-computer interface according to the fault information returned by self-inspection, and meanwhile, the fault lamps are turned on, fault voice prompt is played, faults are accurately positioned, and manual searching is not needed, so that great convenience is brought to maintenance personnel; meanwhile, detection is carried out before the production is started, early-stage faults are effectively avoided in the production process, and the probability of shutdown maintenance is greatly reduced.

The invention discloses a magnetron laser bionic compound reinforcing method and relates to surface modification of metal materials. The method includes the main steps of 1, polishing the surface of metal material with abrasive paper, and cleaning the surface with alcohol; 2, subjecting the surface of the metal material to magnetron laser bionic fusing so as to obtain a bionic reinforcement fusing track; 3, setting an absorbing layer and a restraint layer on the fusing track; 4, subjecting the fusing track to laser shot-peening so as to obtain the compound reinforced bionic structured surface. The magnetron laser bionic compound reinforcing method combining magneto-stirring effect has the advantages in laser thermal effect; the bionic reinforced structure is made on the surface of the metal material; microstructure and residual stress of a bionic reinforced area are comprehensively controlled, the compound reinforcing effect of fine crystal strengthening and stress strengthening is produced, and the properties of the metal material such as surface wear resistance and fatigue resistance are significantly improved. The magnetron laser bionic compound reinforcing method with simple process is easy to operate and suitable for large-scale batch production.

The invention discloses a method and a device for ageing three-phase rectifier bridges. The method is that an ageing device is utilized to perform batch ageing of the three-phase rectifier bridges. The three-phase rectifier bridges to be tested are clamped on clamps at an ageing area of a device, and a connecting terminal of a high voltage output control unit and a connecting terminal of a current control unit on the device are connected with the three-phase rectifier bridges to be tested. A temperature-measuring unit is fixed on a cooling fin at the ageing area and connected with a temperature displaying control unit, and the temperature displaying control unit is connected with a cooling fan unit. The current control unit and the high voltage output control unit are respectively connected with a test parameter displaying unit. The current control unit is respectively connected with a low voltage alternating current power supply adjusting unit and a synchronous trigger control unit. The method and the device for ageing the three-phase rectifier bridges can perform dynamic ageing to inner tubes of the three-phase rectifier bridges completely, perform batch selection and avoid the earlier failure of the three-phase rectifier bridges or circuit faults due to the fact that the three-phase rectifier bridges cannot bear large-loading impact. The method and the device for ageing the three-phase rectifier bridges aim at meeting the requirements of customers for quality grade of products and guaranteeing product reliability.

The invention discloses an energy-saving casing of an induction heating device universally used in an iron section cladding sand cast production line. The casing adopts metal materials and is installed on an iron section delivery section. The induction heating device and the iron section delivery section of the casing are wrapped on the periphery of the casing, and an iron section delivery inlet and an iron section delivery outlet are arranged at two ends of the casing. The casing comprises an upper casing and a lower casing which are connected through a fixing piece, a rib and an opening position are respectively arranged on the upper casing and the lower casing, and the opening position is located at the top of the casing. A casing part of the iron section heating device is improved. The energy-saving casing resolves the technical problems of early failure and high energy consumption of relative parts caused by the fact that the induction heating device in the iron section cladding sand cast production line is heated in non-control mode, reduces energy consumption of the iron section heating device, prevents early failure of other parts (like heat-resistant bearings) in the device, and has the advantages of saving energy, reducing consumption, being high in generality and durable in use.

The invention discloses auto-processing technology and system for modified asphalt and relates to the field of asphalt processing. The system includes: a swelling tank assembly, a heating device, a modifier feeding system, a storage tank, a milling machine, and a control device. A stirrer and a temperature sensor are disposed in the swelling tank assembly; the heating device heats the swelling tank assembly; the modifier feeding system is connected with the swelling tank assembly for feeding a modifier thereinto; the storage tank is used for storing asphalt and is connected to the swelling tank for feeding matrix asphalt to the swelling tank assembly; the control device is electrically connected with the stirrer, the temperature sensor and the heating device. Modified asphalt produced in the system can effectively improve high-temperature stability of road surface and reduces generation of tracks and improves low-temperature performance of the road surface, thus preventing road surfacecracking, effectively preventing early stage damage of the road surface, reducing maintenance and repair load, and prolonging service life of the road surface.

The invention provides a supporting bearing for a drawing shaft of a spinning machine, which comprises a bearing seat, an outer ring, an inner ring, needle rollers, steel balls, a steel ball retainer, a needle roller retainer and shield rings. The surface of the outer ring is provided with a circular-arc raceway and a straight raceway. The surface of the inner ring is provided with a circular-arc raceway and a straight raceway corresponding to those of the outer ring. A group of steel balls are arranged at the centers of the circular-arc raceways of the inner and outer rings and the steel balls separated at along the circumstantial direction by the steel ball retainer. A group of needle rollers are arranged at the centers of the straight raceways of the inner and outer rings and the needle rollers are separated by the needle roller retainer. Two shield rings which limit the needle rollers and the needle roller retainer to deflect axially are arranged at both sides of the straight raceways. The invention is designed of a set of combination bearing instead of two sets of bearings in the prior art, which avoids early invalidation during operation resulted from differences in different bearings. The invention meets the use requirements of high load for the bearing and simultaneously improves the lubrication of the bearing.

The invention relates to an energy-saving window frame or window sash profile of a polyurethane composite material consisting of polyurethane resin and glass fibers and a forming method. The profile comprises the glass fibers; a plurality of bundles of glass fibers are densely distributed to form a window frame or window sash profile forming skeleton; and the polyurethane is compounded on the inner and outer surfaces of the window frame or window sash profile forming skeleton to form the polyurethane window frame or window sash profile. The profile has the advantages that: the profile has light weight, high strength, energy conservation, heat insulation, health, environmental friendliness, remarkable energy-saving effect, corrosion and ageing resistance, long service life, good dimensional stability, good weather resistance, good high temperature resistance, better low temperature resistance, good insulating performance, good shock absorption performance and rich colors; the polyurethane composite material has high hardness and can be used for coating various paints to prepare the profiles of various colors to adapt the application of different styles and grades; and the profile has fatigue resistance, and the polyurethane composite material has high fatigue resistance so as to ensure use safety and reliability of the material.

The invention discloses a composite diamond drill bit with a fixed buffer structure, and belongs to the field of drilling. The drill bit mainly comprises a drill bit body, multiple cutter wings and atleast two tooth palms extending from the drill bit body or fixed on the drill bit body, and at least two tooth wheels consisting of tooth wheel bodies and teeth, water holes or nozzles; the tooth wheels are rotationally connected with the tooth palms; and scraping teeth are arranged on the cutter wings. For any two adjacent tooth wheels, in the rotating direction of the drill bit, front tooth wheels are on the front side, and back tooth wheels are on the back side; at least one cutter wing is arranged in areas before the back tooth wheels and behind the front tooth wheels; a buffer base extending from the drill bit body or fixed on the drill bit body is arranged between the at last one cutter wing and the front tooth wheels; and a fixed buffer element is arranged on the buffer base. The drill bit can obviously reduce the impact vibration in the guide drilling process, reduces the impact failure of the scraping teeth, and improves the continuous drilling capacity.

The invention discloses a medical detection device, in particular to a multi-project grouped reagent cold storage device for a clinical biochemical analysis instrument. The multi-project grouped reagent cold storage device for the clinical biochemical analysis instrument comprises an installation base which can be used for installing an R2 reagent bottle. The R2 reagent bottle is arranged on a base of the installation base. The periphery of the installation base is covered with heat insulation materials. A Peltier is connected to the lower portion of the base. A radiator is connected to the lower portion of the Peltier and located on an installation support. An exhaust fan right facing the radiator is arranged below the installation support. By the adoption of the structure, the R2 reagent bottle is arranged on the installation base connected with the Peltier, and the radiator is connected to the lower portion of the Peltier, so that cold storage and protection of the R2 reagent bottle are achieved, early failure of reagent in the multi-project reagent bottle is effectively prevented, and the multi-project grouped reagent cold storage device is particularly suitable for being applied to a clinical sample multi-project grouped detection device.

The invention discloses a combined type diamond bit with a rotary buffer structure, and belongs to the field of drilling. The bit mainly comprises a bit body, multiple blades and at least two tooth palms extending from the bit body or fixed to the bit body, at least two tooth wheels composed of tooth wheel bodies and teeth, water holes or nozzles; the tooth wheels are rotatably connected with thetooth palms, scraping teeth are arranged on the blades, for any two adjacent tooth wheels, in the rotating direction of the bit, the tooth wheel with the circumferential position close to the front isthe front tooth wheel, the tooth wheel with the circumferential position close to the back is the rear tooth wheel, at least one blade is arranged on the area in front of the rear tooth wheel and behind the front tooth wheel, a buffer base extending from the bit body or fixed to the bit body is arranged between at least one blade and the front tooth wheel, and a rotary buffer element is arrangedon the buffer base. According to the bit, the impact vibration of the bit in the guide drilling process can be obviously reduced, impact failures of the scraping teeth can be reduced, and the continuous drilling capacity of the bit can be improved.

A tie foundation (1) for a railway tie (2) having at least a first elastic, preferably elastomer layer (3) and at least a second elastic, preferably elastomer layer (4), with a reinforcement layer (5) being embedded between the first elastic layer (3) and the second elastic layer (4), with the second elastic layer (4) forming an outer surface (6) of the tie foundation (1) and the reinforcement layer (5) comprising a fibrous material.

The invention provides a RS2000 anti-rutting modified asphalt processing technic which belongs to the road and bridge engineering technique field, relates to a road asphalt processing technique. The technique uses a technical scheme as follows: the RS2000 anti-rutting modified asphalt is prepared by adding RS2000 modifying agent to basic asphalt which has characteristics that: adding 8% modifying agent into the basic asphalt evenly, heating to 160-170 DEG. C, and stirring 30 minutes with a stirring speed 350 revolutions per minute. The technique also can use a technical scheme as follows: adding RS2000 modifying agent into the basic asphalt which has characteristics of: adding 8% RS2000 modifying agent into the basic asphalt with 150-160 DEG. C, stirring 10 minutes, then rubbing the mixed material twice by a colloid mill. Compared with the prior modified asphalt, the modified asphalt provided by the invention has excellent performance and low cost.

The invention relates to a reinforcing rib section for a polyurethane composite material energy-saving door frame or door sash frame or window frame or window sash frame, which is made from polyurethane resin and glass fiber, and a molding method. The reinforcing rib section comprises glass fibers, wherein a reinforcing rib section molding framework for a door frame/sash or a window frame/sash consists of a plurality of bundles of densely covered glass fibers; and polyurethane resin is compounded with the inner and outer surfaces of the reinforcing rib section molding framework for the door frame/sash or the window frame/sash. The reinforcing rib section has the advantages of light weight, high intensity, energy conservation, heat preservation, heat insulation, health, environmental friendliness, remarkable energy-saving effect, corrosion resistance, ageing resistance, long service life, high size stability, high weather resistance, high high-temperature resistance, higher low-temperature resistance, good insulating property, high damping performance and rich color; a polyurethane composite material has high hardness; and the reinforcing rib section can be painted with various paints to obtain sections of various colors so as to adapt to different styles and grades.

The invention discloses an air inlet assembly. An L-shaped upper flow guide rib and a lower dust and water discharging port, wherein the upper flow guide rib is arranged in an air inlet cavity and isolates the front end and the back end of the air inlet cavity, the upper flow guide rib comprises a bottom arm part located at the bottom of an air inlet grille and transversely arranged as well as a longitudinal arm part longitudinally arranged along the air inlet cavity, the longitudinal arm part extends upwards to an air inlet upper fixing support and has a gap with the lower edge of the air inlet upper fixing support; the lower dust and water discharging port is located in the middle of an air inlet lower fixing support and arranged transversely, the lower dust and water discharging port effectively removes water entering the air inlet, early failure of an air filter element is avoided, and the service life of the filter element is prolonged.

A coaxial cable copper pipe connecting device is formed through blanking and punching of an entire beryllium bronze band. Through punching, an installation fixing hole is formed in the bottom surface and a plurality of spring sheets are formed on the bottom surface. A ball surface is arranged on the top end of each spring sheet. The maximum distance between the ball surface and the top end of each spring sheet is less than 0.5 mm. The bottom surface of the installation fixing hole and each spring sheet form a certain angle. The connecting device is then subjected to heat treatment of a vacuum furnace, the temperature of the inside of which is between 305 and 310 DEG C, kept for 2 h, and subjected to vacuum-cooling until the temperature of the device is below 40 DEG C, so that it is ensured that the ratio of the outer diameter of each spring sheet before contraction to that after contraction is 2:1, and the spring sheet can rebound without breaking. The connecting device has an excellent contraction ratio, and can be adapted to coaxial cable copper pipes with different inner diameters. The ball surfaces on the top ends of the spring sheets increase the effective contact area of the device and a coaxial cable copper pipe, reduces the contact resistance and the friction resistance at the same time, and prevents the spring sheet from fracturing.

The invention discloses an independent steering and suspension system for a three-wheeled automobile, which comprises a vehicle frame, a rocker arm is hinged at the front end of the vehicle frame, and a shock absorber is arranged between the rear part of the rocker arm and the vehicle frame. system, the front end of the rocker arm is rotated and provided with a front suspension assembly for installing the front wheel of a three-wheeled vehicle; A rod system connects the front suspension components. The invention makes the steering and suspension system completely independent, and the two no longer affect each other, avoiding the early failure of the steering column shaft and steering bearing in the existing steering system, avoiding the influence on the steering wheel, reducing the vibration of the steering wheel, and improving driving comfort , and the structure is compact, saves installation space, avoids early failures such as oil leakage and fracture of the shock absorbing element, and can meet the different needs of light load and heavy load, and has good ride comfort.

The invention discloses a ball connecting rod, a connecting rod assembly and a processing method of the ball connecting rod. The ball connecting rod is used for matching a ball socket. The ball connecting rod contains a ball which matches the ball socket, a connecting rod which is connected with the ball and has screw thread and a coating which is arranged on the outer surface of the connecting rod and is at least covered with screw thread. The processing method of the ball connecting rod comprises the following steps: S1, blanking is carried out to generate a blank with a ball and a connecting rod; S2, the connecting rod of the blank undergoes thread rolling to form a first part with screw thread; S3, the surface of the first part is electroplated to form a second part with a coating; S4, the second part is cut and processed, and the coating formed at the ball of the second part is at least removed to form a third part; and S5, the third part undergoes barreling and cleaning. According to the ball connecting rod manufactured by the above processing method, the ball has high machining precision and low roughness, the ball matches the ball socket greatly, and early failure of the connecting rod assembly is avoided.

The invention discloses a production process of a maintenance-free triangular belt with transverse fiber bundles. The triangular belt comprises a core layer and an adhesive tape layer on the back of the belt body, wherein the core layer sequentially comprises a bottom adhesive layer, a cord thread layer, a viscose layer, a polyester hard line rope and a buffer adhesive layer from the bottom to top; the bottom adhesive layer is burdened according to technical requirements, and production is performed according to the production process including mixing, rolling, reversed splicing, molding, vulcanizing, cutting, milling and the like. According to the process disclosed by the invention, the service life of the product is prolonged, early damage on the surface of the triangular belt is effectively avoided, the wear resistance is improved, the grip between the triangular belt and a grooved pulley is increased, noise during transmission is reduced, and the maintenance-free technical requirement is met.

The invention relates to a health care device preventing and decomposing in-vivo calculus, and aims to provide a medical health care method and related device, namely an in-vivo calculus preventer capable of improving quality of drinking water and activating the water to prevent and decompose various kinds of calculus in vivo to the greatest extent. Accordingly, incidence rate of the in-vivo calculus is reduced, and deterioration of the lithiasis is reduced. Besides, the in-vivo calculus preventer can help patients enhance the postoperative calculus removal function after the ultrasonic lithotripsy and can be complementary to the ultrasonic lithotripsy. Indeed, the in-vivo calculus preventer has some actions on life prolonging of people. The problem of secondary pollution of the last kilometer is solved, and tap water for cooking and drinking can be subjected to strong magnetization in advance before entering the human body.

The invention discloses an automobile differential mechanism and bearing combination structure. The combination structure is characterized in that a thrust bearing is clamped between a differential case and the top ends of planetary gears, and the thrust bearing and the planetary gears are arranged on a same shaft together in a sleeving mode. Contact surfaces of the thrust bearing and the differential case are spherical surfaces corresponding to each other, and the contact surface on the thrust bearing is a static surface. The combination structure has the beneficial effects that roller pin bearings rotate along with rolling of the planetary gears, grinding scrap iron is reduced, the internal lubrication environment is improved, the faults of the automobile differential mechanism are reduced, and the overall service life of the differential mechanism is prolonged.

The invention discloses a method for discriminating the application range of a flexible surface under the overload condition. According to the method, the flexible surface is introduced, and the traditional method that only a semi-rigid surface is adopted, and the thickness of a base layer is increased to avoid overloads is changed. Under the same traffic flow, overload rate and overload limit, the fatigue service life period of the semi-rigid surface is compared with that of the flexible surface, and therefore when the flexible surface or the semi-rigid surface is adopted is discriminated. According to the method, the traditional method that only the semi-rigid surface is adopted, and the thickness of the base layer is increased to avoid the overloads is changed, and the flexible surface is introduced. Under the same traffic flow, overload rate and overload limit, the fatigue service life period of the semi-rigid surface is compared with that of the flexible surface, and therefore the application range of the flexible surface and the semi-rigid surface is provided. Under the same condition, for the urban road with the large overload rate and overload limit, a flexible surface structure should be adopted by a surface structure, and therefore early damage caused by the overloads is avoided; meanwhile, the cost of later maintenance is reduced, and the fatigue service life period is prolonged.

The invention discloses a high-strength multi-performance wire cable. The high-strength multi-performance wire cable comprises a cable core, a coating layer, a functional layer and an outer sheath, the cable core layer is internally provided with at least one cable core, and a filler is filled between the cable core and the coating layer; and the outer side of the cable core layer is provided witha coating layer. A functional layer is arranged outside the coating layer, the functional layer is composed of a functional material and an adhesive, the functional layer is coated with an outer sheath, and the coating layer and the outer sheath contain at least one layer containing modified reinforcing fibers. According to the cable, the functional layer composed of the reinforcing net and the fireproof glue is contained, the cable has very good mechanical performance and electrical performance, the cable is not prone to deformation and more stable in form, multiple functional materials canbe added into the fireproof glue layer, and the service life of the cable can be greatly prolonged.