5results about How to "Extend service time" patented technology

The invention discloses a wear online identification and compensation control system and method for a high-pressure distribution plunger and barrel assembly, and the system comprises a data collection module which is used for collecting working condition data and state data; a health state dynamic baseline model obtained through offline training is arranged in the data processing module, and the wear level of the plunger and barrel assembly is recognized by calculating the residual error between actual state data and health state data predicted by the model under the current working condition; and the compensation control module is used for generating a self-adaptive compensation control instruction according to the identified wear grade and the current working condition and sending the self-adaptive compensation control instruction to an execution mechanism. According to the method, the dynamic base line synchronous with the real-time working condition is constructed, early weak wear characteristics can be separated from strong working condition interference, the recognition sensitivity and accuracy are improved, the influence of wear on the system performance is actively counteracted through closed-loop adaptive compensation control, the service life of equipment is expected to be prolonged, and the system performance is improved. And technical support is provided for predictive wear monitoring management.

A kind of small milliwatt level thermoelectric cell based on americium isotope heat source, including battery main body, cooling device and external measuring circuit;Battery main body includes battery heat source component, shell cover, shell body, shell cover is installed on shell body;Battery heat source component is located in shell body, and heat insulation layer is filled between battery heat source component and shell body;Upper end of battery heat source component is connected with upper fixed part, lower end is connected with lower fixed part by thermoelectric power piece, and the upper end of heat conduction column is connected with lower fixed part, and the lower end is fixed with the inside of shell body.Electricity battery heat source component includes americium heat source core block, inner package shell, outer package shell, americium heat source core block is located in inner package shell, inner package shell includes inner package shell end cover, inner package shell body, and spring is filled between inner package shell end cover lower end and americium heat source core block, and helium is filled in inner package shell;Inner package shell is placed in lead shielding layer, lead shielding layer is placed in outer package shell, and outer package shell includes outer package shell body and outer package shell end plug.

The application relates to a communication chain-free motor control system based on physical layer self-adaption and reflection impedance mapping, which comprises a space magnetic flux self-adaption mechanism; a transmitting end coil of the space magnetic flux self-adaption mechanism is fixed on a primary side fixed base; a receiving end coil is arranged at one end of a secondary side sliding block, and the other end of the secondary side sliding block is connected with a secondary side mounting base through an SMA spiral driver and a balance spring respectively; the secondary side sliding block is slidingly mounted on a linear guide rail support and moves along the axial direction of the linear guide rail support; a metamaterial lens flat plate is coaxially arranged between the transmitting end coil and the receiving end coil; the transmitting end coil is connected with a primary side circuit for energy supply; and the receiving end coil is connected with a secondary side circuit for receiving wireless electric energy and driving a motor. The application cancels a secondary side communication module and a position sensor, converts complex algorithm optimization into self-regulation matching of a physical structure, and significantly improves the dynamic response speed, operation robustness and environmental tolerance of the system under severe working conditions such as strong radiation, deep water and high vacuum.

The invention relates to the field of high-temperature protective coatings, in particular to a metal slag corrosion resistant ceramic roller coating which comprises a matrix component and a suspension component in a weight ratio of (10-15): (4-6). Wherein the matrix component comprises the following components in parts by weight: 15-25 parts of zirconium oxide, 40-50 parts of calcined aluminum oxide, 1-5 parts of kaolin, 1-5 parts of silicon oxide, 5-15 parts of yttrium oxide and 5-15 parts of silicon carbide. Correspondingly, the invention further discloses a preparation method of the coating for the metal-erosion-resistant ceramic roller. By implementing the method, the corrosion of the metal slag to the ceramic roller can be effectively reduced, and the service life of the ceramic roller is prolonged.

The utility model belongs to the technical field of contact networks, and particularly relates to a hinge-type connected anti-skid fatigue-resistant positioning stand column which comprises an upper hoop, a lower hoop hinged to the upper hoop and a positioning column fixed to the lower hoop, the upper hoop comprises a first ring body, a first hinge portion and a first limiting portion, and the lower hoop comprises a second ring body, a second hinge portion and a second limiting portion. The lower hoop comprises a second ring body, second hinge parts and second limiting parts connected between every two adjacent second hinge parts, and each second limiting part is provided with a notch allowing the corresponding first limiting part to be embedded and limiting the rotation amplitude of the first limiting part; the stress state in the matching process of the positioning stand column and the positioning pipe is improved, the fatigue performance is improved, the service time of the positioning stand column and the positioning pipe is prolonged, the hinge type connecting structure enables the lower hoop to be thicker and more reliable, damage and breakage of the connecting portion caused by oblique shear stress are avoided, and an attaching contact plane is designed on the enclasping face of the lower hoop and the positioning pipe, so that the service life of the lower hoop is prolonged. The clamping force on the positioning pipe in the holding state is improved, the positioning pipe is prevented from sliding, and the overall reliability is improved.