31results about How to "Avoid the disadvantages of failure" patented technology

The invention relates to a thermal process wireless virtual instruments integrating control system used in thermal process technology field. It includes virtual instrument host computer, host computer wireless communicator, a set of slave wireless communicator, a set of A/D converter, a set of input/digital converter, a set of D/A converter, and a set of digital/output converter. The host computer connects to the host wireless communicator. The main wireless communicator communicates with slave wireless communicator. The slave wireless communicator connects to A/D converter or input/digital converter or D/A converter or digital/output converter. The invention has the advantages of flexible, good adaptability, strong function, convenient to use, low cost, etc.

The invention relates to a state estimation data correction system and method for improving the accuracy. The state estimation data correction system comprises a data correction system body, a real-time database, a dynamic monitoring system, a data acquisition and monitoring control system, an electric energy acquisition system, a power transmission and transformation on-line monitoring system, a commanding platform and a dynamic management system. The state estimation data correction method includes the steps of updating a data structure of a bad data list, updating the bad data list, finding data in associated information I, marking the information I as x1, x2, x3 and x4, conducting judgment processing, considering values in the bad data list as accurate measurement values to be returned, conducting conventional state estimation, finding associated information II, and adding data in the associated information II to explanation field data of distinguishing results of the bad data list. According to the state estimation data correction system and method, the state estimation accuracy is improved, and the defect that data are invalid is avoided.

The invention relates to a method for preparing a multi-functional building coating. The flexible coating is the one with extension and retracting corresponding to stress,and suitable modulus and tensile strength when be extended, has protective and deconative effects of the usual coating as well as functions of water resistance and covering slot. It makes use of absorption and shielding of some nm particle to the ultraviolet ray,uses ball milling or high speed shearing and supersonic dispersion and self-crosslinking flexible latex to prepare nm compound self-crosslinking flexible latex,meanwhile,add the usual assistant to raise its flexibility and resistance to aging. In the productive course,use nm compound self-crosslinking flexible latex and new sound absorption material to produce the multi-functional building coating with outstanding sound absorption effect as well as high flexibility and resistance to aging,can be applied in other building,like decoration and protection of building on two sides of the high way,house and ground.

The invention relates to a method for improving the whole hydrophobicity of wood. The method comprises the steps of dissolving a hydrophobic reagent (namely Alkyl Ketene Dimer (AKD)) by hexyl hydride, preparing solution with the mass concentration being 2-10:100; then in a vacuum-high pressure dipping process, keeping the wood in the environment with the vacuum degree being -0.09MPa for 15-60min, then sucking the AKD hexyl hydride solution with the mass concentration being 2-10:100 in a dipping tank, pressurizing to be 1.0MPa-3.0MPa, keeping for 0.5h-4h under a high pressure state; and finally, heating the processed wood for 1h-5h under the temperature being 100 DEG C-120 DEG C. Therefore, the AKD and the cellulose in the wood are subjected to chemical reaction, so as to produce functional wood with whole hydrophobicity. According to the new method, the process is simple, the hydrophobic effect is obvious, and the whole hydrophobicity of the wood can be improved.

The invention relates to a sliding ball pin assembly applicable to a thrusting rod of a heavy loading vehicle balance rear suspension, which comprises a ball pin metal joint bearing and end covers, wherein the ball pin metal joint bearing comprises a ball pin and a friction pair outer ring; the middle part of the ball pin is spherical; the outside of the ball pin is assembled with the friction pair outer ring matched with the outside of the ball pin; the ball pin and the friction pair outer ring form a friction pair in a universal moving mode; the twisting and deflecting of the thrusting rod can be converted into relative movement of the friction pair; and the outer circumferential surface of the friction pair outer ring is provided with a layer of polyurethane which sulfates the friction pair outer ring and two end covers into a whole. When the ball pin performs the actions and bears impact, the polyurethane elastic body only bears extrusion; because the stress is simplified and the ball pin only bears the pressure subjected by the elastic body, the service life is greatly prolonged.

The invention provides a drug carrying microsphere with a tumor chemoradiotherapy synergistic sensitization effect and a preparation method thereof. The method comprises the following steps: carryingout amidation reaction on a polyacrylic acid PAA and polyethylene glycol PEG with two end amination under action of a first activating agent to obtain a PAA-PEG block polymer; carrying out esterification reaction on the PAA-PEG block polymer and 1-ethoxy-2-methyl-5-nitroimidazole MN under the action of a second activating agent to obtain a MN-PAA-PEG polymer microsphere; and carrying out self-assembly on the MN-PAA-PEG polymer and doxorubicin DOX to obtain a doxorubicin-loaded DOX/MN-PAA-PEG microsphere. The drug carrying microsphere can be obtained only through three steps of an acylation reaction, an esterification reaction and self-assembly, the method has characteristics of a simple process, mild reaction conditions and easiness in operation.

The invention relates to a mechanical seal ring with a magnetic ring. A first magnetic inner ring and a second magnetic inner ring in a moving ring part and a static ring part matched with the moving ring part have the same magnetism on the opposite end faces at a sealed end face side, the seal rigidity is increased by the repulsive force of the two end faces in non-contacting mechanical face seal, the disadvantage of seal failure caused by rubbing of seal faces is avoided, the structure is simple, and the use is convenient.

The invention discloses a network re-searching method, a terminal and a computer storage medium. The method comprises the following steps: when a network is in a bad state in a service operation process for the terminal used for the NB-IOT, a judgment threshold value is extracted; and whether network random access is initiated in an original cell or not is detected according to the judgment threshold value or network searching is carried out in a new cell.

The invention discloses a package structure and a manufacturing method thereof. The package structure includes: a substrate, an electrical element which is arranged on the substrate and has a sensing region, a package layer which is arranged on the substrate and covers the electrical element, and a cover body which is arranged on the package layer and covers the sensing region, such that the cover body is engineered to prevent direct contact of a finger to the sensing region. Therefore, the package structure overcomes the defect of ineffectiveness of electrical element caused by damage to the sensing region.

A package structure and a manufacturing method thereof are disclosed. The package structure comprises a substrate, an electronic assembly, which is embedded in the substrate and has a sensing surface, and an insulating layer, which is formed on the substrate and the sensing surface. By covering the sensing surface of the electronic assembly by the insulating layer, the finger will not directly touch the sensing area, the sensing area is protected, and the failure of the electronic assembly is avoided.

The invention discloses a double-swirl combustion instability control method and system. The method comprises the following steps: firstly, generating a first-generation excitation function signal by a machine learning algorithm; and then building a test system composed of a double-swirl combustor, a combustion chamber, a gas supply system, an electromagnetic valve, a pressure sensor, a data acquisition card, a controller and a computer. The controller controls the electromagnetic valve to adjust the inner rotational flow fuel flow according to the excitation function signal. The pressure sensor collects combustion chamber wall surface pressure and transmits the pressure to the computer. Finally, a cost function is defined according to pressure oscillation for updating, so that machine learning enters the second generation. Circulating like this for several generations, when there is no longer a smaller cost function in machine learning, it means that the algorithm has converged. At the moment, the excitation function signal corresponding to the minimum cost function is the optimal excitation function signal. According to the method of the invention, the advantage of global optimization of the machine learning algorithm is brought into full play, combustion instability is restrained to the maximum extent, and the service life of an aero-engine and a gas turbine is prolonged.

The invention discloses a permanent magnet magneto-rheological fan clutch of an internal combustion engine and a fan. The permanent magnet magneto-rheological fan clutch of the internal combustion engine comprises a driving shaft, a driven shell and an input flange plate; the driving shaft is sleeved with a sliding ring, and the outer side of the sliding ring is sleeved with a magnetism isolatingring; an annular groove surrounding the magnetism isolating ring by a circle is formed in the inner side of the magnetism isolating ring, and the space between the annular groove and the sliding ringis filled with magneto-rheological liquid; a plurality of oil storage holes are distributed in the left side of the magnetic isolation ring; the left end of the sliding ring is sleeved with a permanent magnet. A magnetism isolating friction plate is arranged on the left side of the sliding ring, and a piston rod is arranged on the right side of the magnetism isolating friction plate. A first shapememory alloy spring is arranged between the magnetic isolating friction plate and the left end cover. The fan comprises the permanent magnet magneto-rheological fan clutch and a fan assembly. The maximum torque transmitted by the magneto-rheological clutch can be increased, the stability of the transmission performance of the clutch at the high temperature is guaranteed, the heat dissipation effect of the fan is enhanced, the energy is saved, and the environmental protection is achieved.

The invention discloses a supercharging device used in a drill rod. The supercharging device comprises a first power device connected with a drill collar of the drill rod, a second power device arranged in a manner of rotating relative to a drill bit, and a regulation and control device connected between the first power device and the second power device; under the flowing force of drilling fluid, the first power device and the second power device rotate oppositely and reversely, the second power device pressurizes part of the drilling fluid and then discharges the pressurized drilling fluid through the drill bit, and unpowered pressurization is achieved. The invention further discloses a fluid jet guide drilling tool. The supercharging device is applied in the fluid jet guide drilling tool, therefore, a flowing force rock breaking mode of drilling fluid is used for guiding, the defect of failure of a mechanical offset structure is avoided, higher reliability and longer service life are achieved, directional rock breaking is achieved by combining rock breaking in cooperation with a mechanical mode of rotation of the drill bit, and the directional drilling speed is greatly increased.

The invention discloses an electromagnetic relay for realizing arc extinguishing based on a soft magnet. The electromagnetic relay comprises a movable spring part, a static spring part, an armature part and a push card. A movable push card is composed of a soft magnetic material body on one side and an insulating material body on the other side. The soft magnetic material body of the push card isprovided with a first clamping portion which is cooperated with a movable spring sheet in a clamping manner. The insulating material body of the push card is clamped and cooperated with the armature part. One end head of the soft magnetic material body of the push card is correspondingly arranged on a side edge where a movable contact is cooperated with a static contact, and a projection of one end head of the soft magnetic material body at the movable contact and the static contact at least covers a part of gap between the movable contact and the static contact when the contacts are disconnected. According to the above structure, arc extinguishing can be achieved, meanwhile, there is no polarity requirement for wiring of the relay, and a defect that a size of a relay product is increaseddue to the fact that an installation position of magnetic steel needs to be set in the prior art can be overcome.

The invention discloses a motor stator and rotor iron core stamping progressive die adopting dispensing lamination and a dispensing process, and a dispensing lamination device comprises a stamping station, a first component sizing material dispensing station, a second component sizing material dispensing station and a blanking station which are arranged on the motor stator and rotor iron core stamping progressive die, an automatic iron core punching sheet stacking mechanism is arranged below the blanking station, one of the first group of sizing material dispensing stations and the second group of sizing material dispensing stations is located above the material belt, and the other one of the first group of sizing material dispensing stations and the second group of sizing material dispensing stations is located below the material belt; a first component glue dispensing device is arranged on the first component glue dispensing station, and a second component glue dispensing device is arranged on the second component glue dispensing station; in the first component sizing material and the second component sizing material, one component sizing material is a main sizing material, and the other component sizing material is a catalyst. According to the invention, the quality and the production efficiency of motor stator and rotor iron core dispensing lamination are improved.

The invention discloses a direct-acting type direct-current relay with a movable contact spring. The direct-acting type direct-current relay comprises a movable assembly formed by assembling a push rod, the movable contact spring and a movable iron core together. The movable assembly further comprises a limiting part and a contact pressure spring, and the movable contact spring is movably connected to the top of the push rod in a sleeving mode through the limiting part and the contact pressure spring so that overtravel can be achieved through the contact pressure spring. The movable iron core is provided with an iron core hole into which the push rod can be inserted, the bottom end of the pushing rod integrally extends towards the side edge to be provided with a protruding edge which is formed through rotation, the overall dimension of the protruding edge is larger than that of an iron core hole of the movable iron core, the pushing rod is inserted into the iron core hole of the movable iron core from bottom to top, and the protruding edge of the pushing rod is correspondingly matched with the lower hole edge of the iron core hole of the movable iron core. Therefore, when the movable iron core moves downwards, the push rod can be driven to move downwards. According to the invention, the disadvantage of product failure caused by breakage of the snap spring can be avoided.