94results about How to "Keep the service life" patented technology

A method for controlling a wind turbine may generally include operating the wind turbine at an initial power output that is greater than a rated power output associated with the wind turbine. The wind turbine may have an anticipated operational life at the rated power output. In addition, the method may include decreasing a power output of the wind turbine over time in order to maintain an actual operating life of the wind turbine substantially equal to or greater than the anticipated operational life. A final power output of the wind turbine at an end of the anticipated operating life may be less than the rated power output.

A chisel holder system including a base part and a chisel holder. The base part includes a socket wherein the chisel holder with a plug-in insert is introduced. The chisel holder has a bearing surface supported on a supporting surface of the base plate, and the base part has a shoulder connected to the supporting surface. A replacement chamber is formed between the shoulder and a facing end surface of the chisel holder. According to this invention, the supporting surface is placed in the transition region in relation to the shoulder by at least one recess of the shoulder so that the flat-shaped connection between the supporting surface and the shoulder, in the region of the recess, is interrupted in order to optimize the resistance to wear and tear of the base part.

A firefighting pump transmission for use with an emergency vehicle pump comprising a housing receiving a drive shaft, the drive shaft having a PTO gear affixed thereto within the housing, an impeller shaft for turning an impeller of a pump, and means for selectively powering the impeller shaft from the drive shaft, the means for powering may include a multi-disk clutch. The transmission allows for powering the PTO gear while the impeller shaft is idle. A Commercially Available PTO device may be mounted to the housing to power a variety of devices.

An antifriction bushing is provided for the bearing of a telescopable steering spindle having an inner spindle and an outer spindle which are disposed coaxially with respect to one another and displaceably with respect to one another and for the torque transmission have a cross section differing from circular. Between the outer spindle and the inner spindle, an interspace is provided for receiving the antifriction bushing consisting of a thermoplastic synthetic material or comprising such material. The bushing includes an inner surface and an outer surface, and consists of a mixture comprising the material PEEK and additionally at least one of the materials PTFE at a volume fraction of up to maximally 15% and/or graphite at a volume fraction of up to maximally 15% and/or carbon fibers at a volume fraction of up to maximally 40%.

The invention provides a refrigerator which comprises a refrigerator body, a first refrigerating system and a second refrigerating system, wherein the refrigerator body is provided with a freezing chamber and/or a temperature varying chamber and a low temperature chamber not communicated with the freezing chamber and/or the temperature varying chamber; the first refrigerating system comprises a first refrigerating component for providing cold quantity for the low temperature chamber by adopting a direct cooling or air cooling refrigerating way; the second refrigerating system is provided with a semiconductor refrigerating module arranged on the peripheral wall of the low temperature chamber. The cold end of the semiconductor refrigerating module is arranged in the low temperature chamber, and the hot end of the semiconductor refrigerating module is arranged outside the peripheral wall.

The invention discloses a cross roller bearing and a retainer thereof. The retainer is suitable to be assembled between inner and outer rings and contains cylindrical rollers; the outer ring is provided with an outer rolling track; the outer rolling track comprises a first outer track surface and a second outer track surface forming a right angle; the retainer is an annular body and comprises a first containing unit and a second containing unit arranged at an interval; the first and second containing units are provided with isolation parts to isolate the end surface of the roller from direct contact with the first and second outer track surfaces of the outer ring, prevent the abrasion of the first and second outer track surfaces caused by the roller and consequent scratch and maintain smooth operation and service life of the roller bearing; moreover, the rollers can be contained and assembled through the first and second containing units, thus the assembly of the cross roller bearing is quicker, and the production benefits are increased.

The invention relates to the field of engineering building materials, belongs to the category of new materials, and in particular relates to a glass fiber reinforced plastic (FRP) engineering anchor rod and a manufacturing method thereof. The invention is characterized in that: raw materials mainly comprise glass fibers, resins and additives, wherein the glass fibers account for 70 to 85 weight percent of the raw materials. The invention has the advantages that: the FRP material has the advantages of light weight, high strength, corrosion resistance, capacity of being easily cut, insulativity (not conducting electricity or magnetism), flame retardancy, low-temperature resistance, fatigue resistance and the like; the anchor rod can locally replace steel bars according to the characteristics of the FRP material so as to fulfill the aim of saving steel and labor cost, the labor efficiency can be greatly improved, and the cost is saved; the anchor rod can be applied to environments with serious corrosion of corrosive media for a long time, can maintain the strength and service life, and meet the requirement of structure durability; the anchor rod can be applied to structure with special requirements; and prestress loss due to concrete creep and shrinkage can be reduced, and the prestress loss due to prestressed reinforcing steel loosening can be reduced.

An illuminator capable of increasing the service life of discharge tubes includes a pair of an a ultraviolet light-emitting discharge tube and a white visible light-emitting discharge tube that are alternately and periodically placed in a lighted state and an unlighted state, such that a state of illumination using only one of the discharge tubes is realized in at least part of a time domain during the repetition period. The illuminator includes a hot-cathode tube used for at least one of the discharge tubes, the hot-cathode tube being arranged in a state where a heating power supply for heating filaments, and an illuminating power supply for enabling motion of thermoelectrons within the hot-cathode tube and at the same time periodic repetition of the lighted state and unlighted state, are capable of executing and interrupting application of voltage, independently of each other.

The invention discloses a building aluminum mold plate punching machine. The building aluminum mold plate punching machine comprises a punching machine body. A servo pump is installed at the top end of the punching machine body, fixing plates are connected with the front surface of the punching machine body, and a strip-shaped groove is formed in the portion, close to the bottom of the fixing plate, of the front surface of the punching machine body. A conveying belt is arranged on one side of the punching machine body, and a punching platform is connected with the inner wall of the punching machine body. According to the building aluminum mold plate punching machine, a servo motor and a polishing piece are arranged, the servo motor drives the polishing piece to rotate through a rotating shaft and a rotating plate, the polishing piece polishes a punching portion of an aluminum mold plate, and therefore the problem that after punching is accomplished, secondary operation needs to be conducted is effectively solved. Due to the fact that springs, connecting plates and bearing columns are arranged, when punching is conducted, the aluminum mold plate transmits the impact force to the punching platform, the punching platform transmits the impact force to the springs, the connecting plates and the bearing columns, the impact force can be dispersed, and the service life of the device iseffectively prolonged.

The present invention discloses a controller for suppressing the temperature of a screen in order to maintain the ambient temperature of the screen to the level of a predetermined standard temperature as to avoid the screen from being operated at abnormal temperature and lowering its service life. The present invention utilizes a temperature detector unit connected to a control unit for detecting the ambient temperature and outputting a temperature signal to the control unit. The temperature signal is compared with the predetermined standard temperature to determine the magnitude of a cold cathode fluorescent lamp for suppressing the operation of the screen to the best ambient temperature and maintaining the normal service temperature.

The invention relates to a bifunctional organic thiosulfate of an anti-reversion agent for rubber industry and a preparation method thereof. The bifunctional organic thiosulfate provided by the invention has two active groups, a sulfur-containing active group generates a cross-linking reaction with rubber macromolecules in a rubber vulcanization process to insert a thermostable alkyl into a sulfur crosslinking bond; in addition, when reversion occurs in an over-vulcanization or application process of vulcanized rubber, the unsaturated double bond groups of the bifunctional organic thiosulfate would generate a Diels-Adel reaction with the C=C bond in the rubber so as to generate a thermostable C-C crosslinking bond to maintain the crosslinking density of the vulcanized rubber, improve the vulcanized reversion of the vulcanized rubber and enhance the service performance and service life of the products.

A reciprocating piston pump may include a pump chamber, a piston seal, a monolithic partially fluorinated polymer piston with a fluid engaging end, a seating end, and a longitudinal outer piston surface extending between the fluid engaging end and the seating end. The reciprocating piston pump may further include a drive assembly coupled to the seating end of the monolithic partially fluorinated polymer piston. The drive assembly operates to reciprocate the monolithic partially fluorinated polymer piston within the pump chamber between full aspirate and full dispense positions. The piston seal forms an interface between the longitudinal outer piston surface of the piston and the pump chamber. The monolithic partially fluorinated polymer piston and the drive assembly are configured such that the piston seal interfaces with the longitudinal outer piston surface over a full stroke length of the drive assembly between the full aspirate and full dispense positions.

The invention relates to a motor vibration absorption structure, which comprises an upper shell and a lower shell, wherein the upper shell and the lower shell are respectively equipped with a shaft seat, and a bearing is respectively provided in the two shaft seats; a rotor connected with a rotating shaft, which is rotatably articulated between the bearings of the two rotating shafts; and a vibration absorption component respectively is equipped between the shaft seat and the bearing, wherein the vibration absorption component has to be made from elastic material capable of both absorbing and buffering the vibration. The inventive vibration absorption component can absorb, isolate and buffer the vibratory magnitude due to the rotor's rotation and the vibratory magnitude due to friction of the rotating shaft and bearing, so as to avoid the influence of the vibratory magnitude on an electronic system, and sustain the normal efficacy and service life thereof.

The invention discloses a computer hard disk anti-shock protection device and includes an upper connection plate. The bottom end of the upper connecting plate is connected with a telescopic rod, and the inner wall of the upper connecting plate is provided with a fan, the inner wall of the upper connecting plate is provided with a battery box close to the inner side of the fan, a sleeve is sleevedat the bottom end of the expansion rod, a lower connecting plate is installed at the bottom end of the sleeve, an outer spring is arranged near the outer surface of the expansion rod at the top end ofthe sleeve, fixed columns are fixed on both sides of the lower connecting plate and the upper connecting plate, and splints are connected on the upper surface of the lower connecting plate and the lower surface of the upper connecting plate. By arranging an inner spring, an outer spring and a shock absorbing spring, the vibration force generated around the hard disk can be absorbed, the shock absorbing effect of the protection device is further improved, and the problem of looseness in the use process of the hard disk is prevented. By arranging a fan and a battery, the hard disk can quickly dissipate heat when the hard disk is running, and the service life of the device is maintained.

The invention discloses an insect-proof solid wood floor which comprises a plurality of wood boards sequentially stacked from top to bottom. The wood boards are combined to form the insect-proof solid wood floor, an adhesive layer is arranged between every two adjacent wood boards, and the bottom of the lowest wood board is coated with insect repellent agents. The insect-proof solid wood floor has the advantages that the solid wood floor has an insect-proof function and normal service life of the floor is ensured by the aid of the insect repellent agents coating the bottom of the lowest wood board, and the wood boards are not easily delaminated in the use process as the adhesive layer is arranged between every two adjacent wood boards in a coating manner.

The invention relates to the chemical field and in particular relates to paint and a production method thereof. The fluorocarbon paint mainly comprises the following steps of: adding pigments to polyvinylidene fluoride and thermoplastic acrylic resin by adopting dimethylbenzene and isophoron as solvents according to the color requirements; and obtaining the fluorocarbon paint through the processes such as pre-mixing, grinding, diluting, viscosity-adjusting and the like. The fluorocarbon paint disclosed by the invention can be extensively applied to the base materials of high-level external wall decorative protective materials such as aluminum curtain wallboards, color plates and the like, so that the service life of the building can be prolonged to several tens of years even hundreds of years, and the original color of the building is kept.

The invention discloses a use method of a socket device for an intelligent charging pile. Fixed holes are uniformly distributed in the positions, close to the edge, of the periphery of the front sideof a backboard; a socket matching box is arranged in the middle of the front side of the backboard; a pair of fixed plates are symmetrically arranged at the two ends of the front side of the socket matching box; a metering mechanism is arranged in the socket matching box; a pair of jacks are symmetrically formed in the lower end of the front side of the backboard; locks are arranged in the positions, corresponding to the jacks, of the rear side of the backboard; a protective cover is arranged in front of the backboard; spring rotating mechanisms are arranged between the two sides of the upperend of the protective cover and the two sides of the upper end of the backboard; a pair of inserting pieces are symmetrically arranged at the lower end of the front side in the protective cover; a wire passing groove is longitudinally formed in the middle of the front side of the protective cover; a rubber layer is arranged in the wire passing groove; and a gap is reserved in the middle of a longitudinal center line of the rubber layer. The charging duration can be managed; the service life of a battery of an electric vehicle is prolonged; the problem of exposed sockets with potential safety hazards in an existing charging pile system can be well solved; the unknown potential hazards under the participation of children are eliminated; the occurrence rate of a fire disaster is greatly reduced; and the life safety and the property loss of a user are guaranteed.