28 results about "Mechanical resistance" patented technology

The invention provides a speed regulation purging control method and system for a steam soot blower, and relates to the technical field of steam soot blower control. Stroke position data of a soot blowing gun barrel and a current signal of a driving motor are obtained and synchronously associated, and the speed regulation purging control method and system for the steam soot blower can be realized on the basis of data collected in a plurality of purging cycles. And identifying current anomalies which appear for multiple times at the same stroke position and have consistent current amplitudes and change forms, and identifying the stroke position as a fixed mechanical resistance position. For each fixed mechanical resistance position, a dynamically adjustable mechanical resistance reference value is determined. In the real-time purging process, according to the mechanical resistance reference value, the actual coking resistance signal value is obtained through separation from the total current value of the driving motor, and therefore the purging parameters of the soot blower are adjusted, the service life of the soot blower nozzle and the boiler heating surface can be remarkably prolonged, the operation cost is reduced, and the energy consumption is reduced. And intelligence and refinement of soot blower control are realized.

The invention is directed to a micromechanical device for sorting at least two distinct fractions of target particles and at least one non-target target particle from each other, all suspended in a fluid, comprising: - a source of magnetic flux (1) - a movable member (2) comprising permeable magnetic material (3) wherein the movable member (2) is moved from a first position (4) to a second position (5) and / or one or more third positions (6) by applying a magnetic flux to the movable member (2) - a sample inlet channel (7) through which the fluid flows into the micromechanical device - a first output channel (8) which the movable member (2) diverts the non-target particles while being in the first position (4) - a second output channel (9) into which the movable member (2) diverts one distinct fraction of the target particles while being in the second position (5) - one or more third output channels (10) into which the movable member (2) diverts further distinct fractions of the target particles while being in one of the one or more third position (6) - a spring (11) attached to the movable member (2) providing mechanical resistance to the movable member (2) when moving from the first position (4) to the second position (5) and / or to one or more of the third positions (6) characterized in that the spring (11) has non-linear elastomechanical properties when the movable member (2) is at the second position (5) and / or at one or more of the third positions (6).

This invention relates to the field of intelligent manufacturing and concrete product production equipment control technology, specifically an intelligent control system for the entire production process of concrete poles. The system includes: a reference parameter identification unit for performing a stepped acceleration test and calculating the empty mold impedance parameter characterizing the inherent mechanical resistance of the mold; a load torque observation unit for acquiring the electromagnetic drive torque in real time and extracting the net load torque acting only on the concrete material; a rheological and distribution state analysis unit for calculating the dimensionless eccentricity factor characterizing the uniformity of material distribution; and an adaptive closed-loop control unit for generating corresponding control commands: an emergency braking command is output when the eccentricity exceeds the safety limit, a constant-speed shearing command is output when the rheological state does not meet the standard, and an adaptive acceleration command is output when the rheological state meets the standard and the eccentricity is within the safe range. This invention solves the problem of the inability to directly observe the material state within a closed mold, achieving transparent monitoring of the physical properties of concrete.

The application relates to the technical field of electric propulsion, in particular to a high-structural-stability grid assembly, which comprises a screen grid, a ceramic grid sheet, an accelerating grid and a mounting assembly, wherein the ceramic grid sheet is arranged between the screen grid and the accelerating grid; the grid holes of the ceramic grid sheet are arranged in correspondence with the grid holes of the screen grid and the accelerating grid; the screen grid, the ceramic grid sheet and the accelerating grid are fixedly installed together through the mounting assembly to form a solid grid assembly. The application adopts the ceramic grid sheet with high strength and high density, combines the grid assembly into a solid whole, improves the mechanical resistance, and sets the ceramic grid sheet between the grids to prevent the opposite deformation due to thermal stress during the working process of the grid assembly. Compared with the existing products, the force and thermal environmental stability of the grid assembly is remarkably improved.

The invention belongs to the field of inertial measurement, and discloses a thermal separation inertial measurement device, which comprises a cavity, and a body assembly, a detection circuit assembly, a support frame, a shock absorber assembly, a baffle plate, a public light path assembly, a measurement circuit assembly, a secondary power supply assembly and a cover plate which are arranged in the cavity, and the cavity comprises an outer cover, a side cover, a flange and a bottom cover, the outer cover, the side cover and the flange are connected with the bottom cover, the body assembly comprises an angular velocity inertia sensitive part, a linear acceleration inertia sensitive part, a body and an accelerometer flexible circuit, the flange is of an H-shaped structure, an upper sub-cavity and a lower sub-cavity are formed, and a high-heat power part and an inertia part in the body assembly are installed on the front face and the back face of a partition plate in the H-shaped structure respectively. The high-heat-power components are installed on the side vertical face and the upper and lower end faces of the flange away from the body assembly. The invention has enough inherent frequency and good mechanical resistance, and ensures the environmental adaptability of a mechanical sensitive device.

The invention relates to a pulverizer control method and system based on destruction target recognition and a medium, and belongs to the technical field of intelligent control. The control method comprises the following steps: collecting multi-modal sensing data of a target object; identifying a medium type, extracting physical attribute features, and generating medium feature data; querying a preset parameter mapping table, generating a dynamic compensation coefficient in combination with the temperature and humidity data, and outputting an initial crushing control parameter; a crushing execution mechanism is driven, a mechanical resistance value is monitored in real time in the crushing process, and when the deviation between the monitored mechanical resistance value and an expected value exceeds a dynamic threshold value, an initial crushing control parameter is adjusted in real time; performing spectrum scanning on the crushed residues, generating residue distribution data, performing destruction compliance verification, and outputting a verification report; and storing the medium characteristic data, the crushing control parameters and the residue distribution data into a training set, and regularly updating a preset parameter mapping table. According to the invention, the high-standard requirement on physical medium disposal in a modern high-confidentiality environment can be met.

The utility model relates to a movable chain wheel ventilation cabinet which comprises a cabinet body, front stand columns and rear stand columns are arranged on the cabinet body, a window opening is formed between the front stand columns, a window sliding up and down is arranged on the window opening, a counterweight assembly is connected to the rear stand columns in a sliding mode, the window is connected with a main chain, and the other end of the main chain is fixedly connected with a hanging piece. A movable chain wheel is rotationally connected to the hanging piece, an auxiliary chain is wound on the movable chain wheel in a matched mode, one end of the auxiliary chain is fixedly connected to the counterweight assembly, and the other end of the auxiliary chain is fixedly connected to the rear stand column. According to the movable chain wheel ventilation cabinet, the mechanical relation between the movable chain wheel and the balance weight system is introduced to be optimized again, the requirement for the weight of the balance weight block is greatly reduced, mechanical resistance is remarkably reduced, operation is more convenient, the structure is light, cost is saved, and energy consumption and abrasion are reduced.

This sun protection assembly includes a structure, at least one fabric (18, 26, 28, 30) fixed to the structure at at least first, second and third non-aligned fixing points, at least one permanent attachment member (32) for securely fixing said fabric (18, 26, 28, 30) to the first fixing point, and at least one attachment member with reduced mechanical resistance (34) compared to the mechanical resistance of said permanent attachment member (32) for connecting said fabric (18, 26, 28, 30) to the second fixing point, said reduced mechanical resistance attachment member (34) being capable of fixing said fabric (18, 26, 28, 30) to the second fixing point and capable of releasing the fixing at the second fixing point when the stress exerted on said reduced mechanical resistance attachment member (34) exceeds a predetermined threshold. Figure for the summary: Fig 3

The invention relates to the technical field of cement mixing, in particular to energy-saving building cement grouting material pulping equipment and method.The energy-saving building cement grouting material pulping equipment comprises a U-shaped frame and a supporting frame fixedly connected with the top of the U-shaped frame, the top of the supporting frame is in hoisting connection with a vibration part through a traction assembly and a pushing assembly, and a center control module is fixedly arranged at the top of the supporting frame; the central control module is in control connection with the vibration part, the central control module is in communication connection with the sensor module, the central control module is used for calculating a cement grouting material mechanical resistance value according to a detection result of the sensor module, and the cement grouting material mechanical resistance value is used for judging the current cement grouting material exhaust processing degree; aiming at the problem that a traditional vibration device cannot accurately vibrate and exhaust cement grouting materials, the device detects the mechanical resistance value of the cement grouting materials so as to judge whether the content of bubbles in the cement grouting materials meets the standard or not.

The invention relates to a material performance detection device which is used for detecting the mechanical resistance of a sample in a high-pressure hydrogen environment, the sample is of a hollow tubular structure, and the detection device comprises two sample clamps which are respectively clamped at the two ends of the sample; the oxidation pond is filled with a sodium hydroxide solution, and the sample clamp and the sample are contained in the oxidation pond; the three-electrode system is used for monitoring the hydrogen permeation amount of the sample, the three-electrode system comprises an auxiliary electrode, a reference electrode and a working electrode which are contained in the oxidation pond and jointly connected to the electrochemical measurement equipment, the auxiliary electrode and the sample are arranged at an interval, and the reference electrode and the working electrode are arranged at an interval and abut against the sample; the hydrogen supply part comprises a hydrogen pipeline, and the hydrogen pipeline penetrates through the oxidation pond and is in gas communication with one end of the sample. The hydrogen permeation amount of the sample is obtained in real time while the material performance of the sample is tested, so that the sample detection requirement is met, and the test risk is reduced.

The invention relates to the technical field of automatic warehouse management, and discloses a bogie stereoscopic warehouse management method and system, and the method comprises the steps: building a dynamic control limit for a goods allocation based on a historical operation coordinate, and carrying out the real-time diagnosis of a positioning coordinate of a new operation, thereby distinguishing the chronic evolution and acute mutation of a physical structure, a dynamic offset correction process or a structure locking process is triggered respectively; meanwhile, the load of a lifting motor is monitored in real time in the goods taking operation, so that abnormal mechanical resistance is recognized and avoided; according to the method, the management system obtains multi-dimensional and multi-time-scale perception capability for the physical world, the system can adapt to chronic evolution of the structure, also can respond to acute sudden change in time, and insight into hidden physical risks in the operation process, so that the reliability of the system is changed from depending on the rigidity of hardware to the reliability of the system. The method is converted into intelligent adaptation and risk management of an uncertain environment depending on an information technology.

The invention relates to the technical field of copper material manufacturing, and discloses a preparation device for a high-conductivity copper flexible connecting wire, which comprises a first winding wheel for releasing an unoiled copper wire and a second winding wheel for storing and driving an oiled copper wire to move, and is characterized in that a servo motor is mounted on the side part of the second winding wheel; an oil coating assembly is arranged between the first winding wheel and the second winding wheel; the oiling assembly comprises a supporting frame, a first smearing wheel and a second smearing wheel, the first smearing wheel and the second smearing wheel are arranged on the supporting frame, the first smearing wheel comprises an outer shell fixedly installed above the supporting frame, a rotating wheel is rotationally installed in the outer shell, and a plurality of sponge coating brush heads are arranged on the outer side of the rotating wheel in a circumferential array mode and used for oiling passing copper wires. An anti-oxidation oil pool is arranged at the bottom of the outer shell, and the second smearing wheel and the first smearing wheel are symmetrically arranged and are the same in internal structure. According to the scheme, the friction coating effect in the oil coating process is guaranteed, the mechanical resistance when the copper wire passes through is reduced, and the continuity of the oil coating technology is improved.

A biodegradable horticultural mulch film (1) consisting of an arrangement of non-woven natural fibers (2) forming a longitudinal plane, said arrangement comprising hair (3) and flax fibers (4) mixed and assembled into a consolidated non-woven arrangement, the flax fibers constituting a mass percentage of between 35 and 80% of the total fibers, and more preferably a mass percentage of between 45 and 55% of all the film's fibers. FIGURE 2

The invention relates to the technical field of intelligent manufacturing and concrete product production equipment control, in particular to a concrete pole production full-process intelligent control system, which comprises a reference parameter identification unit used for executing a stepped speed-up test and resolving an empty mold impedance parameter representing inherent mechanical resistance of a mold; the load torque observation unit is used for acquiring electromagnetic driving torque in real time and stripping out net load torque only acting on concrete materials; the rheology and distribution state analysis unit is used for resolving a dimensionless eccentricity factor representing the material distribution uniformity degree; the self-adaptive closed-loop control unit is used for generating corresponding control instructions: outputting an emergency braking instruction when the eccentricity degree exceeds a safety limit, outputting a constant-speed shearing instruction when the rheological state does not reach the standard, and outputting a self-adaptive acceleration instruction when the rheological state reaches the standard and the eccentricity degree is within a safety range; the problem that the material state in the closed mold cannot be directly observed is solved, and perspective monitoring of the physical properties of the concrete is achieved.

The invention provides a rotational inertia measuring method based on comparison of rotational inertia and dynamic coefficients between systems. Under the condition that the total resistance moment borne by the system and the instantaneous rotating speed in the deceleration process meet a quadratic polynomial, motion parameter data, including rotating speed-time or angular position-time or initial rotating speed-stop time data, of the system to be tested and a comparison system containing a rotational inertia standard part are obtained; fitting the data by using a corresponding function model to obtain resistance moment equivalent coefficients of the two systems; and comparing the resistance moment equivalent coefficients of the two systems to obtain the rotational inertia of the to-be-tested system. The method is simplified in measurement process, low in cost, high in applicability and particularly suitable for high-precision measurement of the rotational inertia of a system under the complex conditions of mechanical resistance, fluid viscous resistance, electromagnetic damping force and the like.

The invention relates to a smart card comprising a card body (11) and an electronic module (1) comprising a dielectric substrate (2) the upper face of which is provided with metallic contacts (3) and the lower face of which has a microelectronic chip (5) mounted as a flip-chip, said electronic module (1) being intended to be fixed by means of an adhesive in a cavity (12) of the smart card body having a first zone (13) of depth P1 receiving said substrate (2) and a second zone (14) of depth P2 greater than P1 receiving the microelectronic chip (5), characterized in that a flexible material (15) suitable for forming a mechanical damper is interposed between the surface of the microelectronic chip (5) and the bottom (17) of said second zone (14) of the cavity (12), said flexible material (15) being chosen to be suitable for protecting the microelectronic chip (5) during the use of the smart card (10) or during mechanical resistance tests.Figure for the Abridged version: figure 6.

The utility model relates to a plug inner frame unit capable of resisting terminal clamping, which comprises an inner frame body provided with two terminals, the end part of each terminal for inserting a socket is defined as a front end, the forward end surface of the inner frame body forms an arc block, the arc block comprises a cambered surface, and the cambered surface is formed from the front to the back from one side close to the two terminals to the middle. An arc block is formed on the forward end face of the inner frame body, so that the two terminals are arranged at the front end opposite to the socket, and the terminals close to the rear end generate an arch-shaped structural form so as to have mechanical resistance with strength, and the phenomenon of mutual clamping of the two terminals (or called inner clamping) is reduced or avoided.

The invention belongs to the technical field of hydraulic engineering, and particularly relates to river channel dredging equipment for hydraulic engineering construction, which comprises a dredging ship, a rotating shaft is rotatably arranged on one side of the upper end of the dredging ship, a rotating arm is fixedly connected to the upper end of the rotating shaft, a rack rod is slidably connected to one end of the rotating arm, and a mounting plate is fixedly connected to the lower end of the rack rod. Sliding blocks are slidably connected to the two sides of the lower end face of the mounting plate, a cleaning shovel is rotationally arranged on one side of the lower end of each sliding block, and a polymerization type pushing-aside assembly for preventing aquatic plants from interfering with work of the cleaning shovels is further arranged on the desilting ship. Aquatic plants can be pushed to the periphery by utilizing a polymerization type pushing assembly, and the situations that the cleaning shovel is wound by stems, leaves or root systems of the plants in the descending process, so that mechanical resistance is suddenly increased, the cleaning shovel is clamped, even the storage space of the cleaning shovel is occupied by the aquatic plants, and sludge cannot normally enter an inner cavity of the cleaning shovel are avoided; and the desilting efficiency can be improved.

The utility model relates to a kind of anti-drop composite insulator device with spring leaf, by hardware, spring leaf I, spring leaf II, stop ring I, stop ring II and composite insulator core rod, hardware is hollow circular hollow pipe, length is 70~90 millimeters, one end is equipped with connecting pull handle, the other end opening, it is equipped with circular groove II on the inner circular surface of hardware opening end, width is 5~10 millimeters, depth is 1.0~5.0 millimeters, it is equipped with groove I on the outer circular surface of composite insulator core rod, width is 5~10 millimeters, depth is 1.0~5.0 millimeters, stop ring is by stop ring I and stop ring II, spring leaf is by spring leaf I and spring leaf II, stop ring I and spring leaf I are combined and fixed together to become semicircle ring I, stop ring II and spring leaf II are combined and fixed together to become semicircle ring II, semicircle ring I, semicircle ring II are embedded in groove I and groove II, hardware, semicircle ring I, semicircle ring II and composite insulator core rod are integrated, increase mechanical resistance.

This invention relates to the field of automated warehouse management technology, and discloses a bogie-based automated warehouse management method and system, including: establishing dynamic control limits for storage locations based on historical operation coordinates to perform real-time diagnosis of the positioning coordinates of new operations, thereby distinguishing between chronic evolution and acute changes in the physical structure, and triggering dynamic offset correction or structural locking processes respectively; simultaneously, real-time monitoring of the lifting motor load during picking operations to identify and avoid abnormal mechanical resistance; this invention enables the management system to gain multi-dimensional and multi-timescale perception capabilities of the physical world. The system can not only adapt to the chronic evolution of the structure, but also respond instantly to acute changes, and perceive the hidden physical risks in the operation process, thereby transforming the system's reliability from relying on the rigidity of hardware to relying on information technology for intelligent adaptation and risk management in uncertain environments.

A method of processing iron ore fines from various possible sources, with particle size up to 0.15 mm (through 100 mesh sieve) with no or limited comminution, directly into the intense mixer, with a set of binders in specific proportions, aiming to optimize physical and metallurgical properties of the pellets with minimal binder addition, thus not compromising the quality of steel products. The binders are starch, sodium silicate and sodium hydroxide, among others. The mixture with adjusted moisture content goes through conventional balling discs or drums and size screening. The green pellets then undergo drying with forced air at around 150° C. for a short time. The pellets obtained have excellent metallurgical properties, and compression resistance around 70 kgf / pellets, without the high and undesirable economic and environmental costs of the conventional indurating process. An alternative embodiment (FIG. 3) considers indurating the pellets at temperatures below 1,200° C. to obtain similar mechanical resistance than pellets made by the conventional induration process, with temperatures above 1,300° C.

The combined type hollow grouting anchor rod comprises a hollow rod, a one-way assembly, a reinforcing assembly and a grout stopping assembly, the one-way assembly is arranged at one end of the hollow rod, the reinforcing assembly is arranged on the outer side of the hollow rod, the grout stopping assembly is arranged on one side of the reinforcing assembly, and a reinforcing ring is arranged in the hollow rod, so that the grout stopping assembly can stop grout in the hollow rod. The two sides of each reinforcing ring are fixedly connected through radial teeth, the other set of radial teeth on the other set of reinforcing rings are matched with the radial teeth, locking grooves matched with the radial teeth are formed in one side of the nut and one side of the base plate, and when grouting is conducted on the hollow grouting anchor rod, vibration and the like can be generated. The radial teeth can enable the joint of the nut and the base plate to generate extra friction force and mechanical resistance, the nut is prevented from rotating in the axial direction or the circumferential direction, the anti-loosening purpose is achieved, therefore, the nut cannot be loosened in the high-stress environment, and the problem that the nut and the base plate are loosened due to vibration in the grouting process is solved.

A gate opening apparatus includes a housing, a supporting frame, a motor, a driving member connected to the motor, and a gear assembly. The gear assembly includes a main gear rotatably mounted on the supporting frame and connects to the driving member, and a plurality of driven gears rotatably mounted on the supporting frame. The gate opening apparatus is arranged to be selectively operated between a power mode and a manual mode, wherein in the power mode, the motor is electrically activated to drive the driving member and the main gear to rotate so as to drive the driven gears to rotate and move the door gate to slide, wherein in the manual mode, the motor is cut off from electricity and is arranged to exert minimal mechanical resistance so that a user is able to manually slide the door gate for opening or closing thereof.

The invention discloses a CQFP device reinforcing structure and method, and belongs to the field of electronic components, and the CQFP device reinforcing structure comprises a plurality of reinforcing frameworks which are respectively fixed between a ceramic packaging body and a printed circuit board; the reinforcing framework comprises a device connecting section, an inclined section and a printed circuit board connecting section which are fixedly connected in sequence; the device connecting section is bonded with the ceramic packaging body; and the printed circuit board connecting section is bonded with the printed circuit board. A reinforcing framework is formed by a device connecting section, an inclined section and a printed circuit board connecting section which are fixedly connected in sequence, the reinforcing framework adopts a multi-section forming framework to release stress, a reinforcing main body adopts an epoxy glass cloth plate machining mode, and a bonding main body is connected with a device through an adhesive; the adhesive is effectively prevented from overflowing to the lead and the bonding pad of the component; the thermal stress generated by the CQFP device in the temperature test process can be reduced, and the mechanical resistance of the CQFP device is improved.

The invention relates to an insulating element (100), in particular for insulating a housing component of an energy store or an energy converter, for example for an electrically driven motor vehicle, the insulating element (100) comprising or being formed from an insulating material (102), wherein the insulating material (102) comprises or is formed from at least one additive (104a, 104b), in particular for increasing the heat resistance and / or electrical resistance and / or mechanical resistance of the insulating element (100). The invention also relates to a method for producing the insulating element (100).

The invention discloses a device for sealing a spark sample, which is characterized in that a sealing tank body of the device adopts a double-layer design, a main space is used for loading a surface soil sample, and an interlayer space is used for storing a spark surface atmosphere sample and is sealed by electromagnetic valves connected in series; after work is completed, the sealed tank is automatically separated from the fixing frame and the driving mechanism, the detector only needs to carry the sample tank to return, and the return weight is reduced to the maximum extent; the driving mechanism drives the cover body assembly to complete lifting / descending and rotating movement to achieve opening and closing of the sealed tank body. The device for sealing the spark sample has the advantages of being small in size, light in weight, high in reliability, resistant to mechanics, space radiation and surface dust storm, wide in storage and working temperature range and capable of being used under the spark surface environment condition; the device is applied to loading and sealing of soil and atmosphere samples on the surface of Mars in a sampling and packaging subsystem of a Tianzhou No.3 detector.

The utility model discloses a breaker drawer structure of a GCS type low-voltage draw-out type switch cabinet, which belongs to the technical field of switch cabinets, and is characterized by comprising a cabinet body, a placement rack is bolted on the inner wall of the cabinet body, an auxiliary pushing mechanism is bolted on the inner wall of the placement rack, a drawer assembly is arranged at the top of the placement rack, and the drawer assembly is arranged on the inner wall of the placement rack. The breaker drawer structure solves the problems that when an existing breaker drawer structure of a GCS type low-voltage draw-out type switch cabinet is used, drawer plugging operation is inconvenient mostly, operation is difficult due to factors such as large friction force and mechanical resistance in the plugging process, manpower is consumed, jamming is prone to occurring, and the drawer structure is inconvenient to operate. And the problems that heat generated during operation of the circuit breaker is difficult to effectively dissipate and lacks an efficient cooling mechanism, so that the heat is accumulated in a cabinet body, the internal temperature is increased, the aging of electrical elements is easy to accelerate, the insulating property is easy to reduce, and faults are caused are solved.