2212results about How to "Achieve support" patented technology

The invention discloses an aircraft component position and pose adjusting system based on four locators and a method thereof. The position and pose adjusting system comprises four three-coordinate locators, a spherical technical connector, an aircraft component to be adjusted, a laser tracker and a target reflecting sphere, the three-coordinate locator comprises a bottom plate, and an X-direction motion mechanism, a Y-direction motion mechanism, a Z-direction motion mechanism and a displacement sensor which are arranged from the lower part and the upper part in sequence. The position and pose adjusting method comprises the following steps: firstly, a global coordinate system OXYZ is established, and the current position and pose and the target position and pose of the aircraft component to be adjusted are calculated; secondly, the path of the aircraft component to be adjusted from the current position and pose to the target position and pose is planed; thirdly, the tracks of motion mechanisms in all the directions are formed according to the path; and fourthly, the three locators are synergetically moved, and the position adjusting is realized. The method has the following advantages: firstly, the supporting to the aircraft component to be adjusted can be realized; secondly, the automatic adjusting to position and pose of the aircraft component to be adjusted can be realized; and thirdly, the inch adjusting of position and pose of the aircraft component to be adjusted can be realized.

The invention discloses a volume transformation process of a low permeability reservoir, and the volume transformation process sequentially comprises the following steps of (1) selecting a coal bed, shale, tight sand or other low-permeability reservoir; and (2) adopting a pitching current-limiting hydraulic fracturing way after perforating a plumb shaft; adopting a segmental multi-cluster perforation hydraulic fracturing way after perforating a horizontal well; and varying displacement, propping agent, fracturing fluid and sand ratio in the pumping process in both fracturing ways. Due to adopting the measures for varying the displacement, the sand ratio, the propping agent and the fracturing fluid in the hydraulic fracturing process, pitching current limitation can be adopted when the plumb shaft is fractured or the segmental multi-cluster perforation fracturing process is adopted for the horizontal well, and a netted crack system is formed in the reservoir. Due to adopting the volume transformation process, the volume transformation effect is realized, the weakness of the traditional hydraulic fracturing process that a single crank cannot conform to the commercial production capacity or the later yield is reduced too fast can be avoided, and technical support can be provided for the oil-gas resource development of the low-permeability reservoir.

A vibrator of a beam type linear ultrasonic motor using bending vibration modes belongs to the technical field of piezoelectric ultrasonic motors and is used for the piezoelectric ultrasonic motors. The vibrator solves the problem that the mechanical output capabilities of the ultrasonic motors are restricted because of low tensile strength and low electromechanical coupling efficiency of ceramic materials in the prior art. The vibrator comprises two driving pads, two end covers, two insulating sleeves, two pairs of piezoelectric ceramics with polarization directions being thickness directions, a flange, two thin-walled beams and mounting bases; wherein, studs extend out from the end faces of the flange along the axis of the flange; each stud is sleeved with a pair of piezoelectric ceramics; an end cover is screwed at the overhanging end of each stud; the tail end of each end cover is provided with a driving pad; each piezoelectric ceramic is composed of two symmetrical half piezoelectric ceramics which are combined after being split; the polarization directions of the two half piezoelectric ceramics are opposite; the splitting lines of the two pairs of piezoelectric ceramics at both sides of the flange are vertical to each other; the polarization directions of the piezoelectric ceramics in each pair are opposite.

The invention provides a travel structure of a magnetic levitation type rail polling car, wherein the travel structure is fixedly arranged at the lower part of the bottom board of carriage of the rail polling car and comprises a plurality of floating frames which are sequentially arranged as well as a long stator linear motor traction device and an outer rotor motor driven supporting wheel device which are arranged on the floating frames; wherein the floating frames comprises a plurality of beam frames and corbel frames which are arranged at the two ends of the beam frame; the long stator linear motor traction device comprises a floating magnet module arranged on the corbel frame, a plurality of guiding magnet modules and a plurality of eddy braking magnet modules; the outer rotor motor driven supporting wheel device comprises a motor supporting wheel loading device which is arranged at the two ends of the beam frame and at the inner side of the corbel frame as well as an outer rotor motor supporting wheel arranged at the two ends of the bottom of the beam frame by the loading device. The invention can realize the compatible double traction pattern of long stator linear motor traction and outer rotor motor supporting wheel traction, so that the rail polling car can have the functions of high speed polling and low speed detection.

A coordination control method of wind accumulation is characterized in that according to response of wind turbine generation set rotor control, pitch control and energy storage control to the technical economic characteristics of time, rate of power, volume, cost and the like, operation status data of a wind power plant, a wind turbine generation set, an energy storage system and an electric power system can be collected in real time. The best operating economy of wind accumulation operation is chosen as an aim. The rotor speed of the wind turbine generation set, the pitch angle and the physics limit of the energy storage system are regarded as constraint conditions. Start order, output power, lasting time and quit order of the wind turbine generation set rotor, the winder turbine generation set pitch angle and the energy storage system are coordinately controlled. Wind accumulation frequency modulation requirements and a power grid dispatching power order of an electrical power system are satisfied with the lower volume of stored energy. A Wind discharging rate of wind generating is reduced and economic benefit of wind accumulation is improved.

The invention discloses an AC/DC (Alternating Current/Direct Current) hybrid modularized microgrid network structure based on hybrid energy storage and a networking method of the structure. The AC/DC hybrid modularized microgrid network structure based on hybrid energy storage is characterized in that a back-to-back converter is connected in parallel to a grid-side converter and a microgrid-side converter by use of a DC bus, the AC side of the grid-side converter is connected to a large power grid orderly through a filter circuit and an isolation transformer, and the three-phase AC output end of the microgrid-side converter serves as an AC bus via an LC filter circuit. The AC/DC hybrid modularized microgrid network structure based on hybrid energy storage has the advantages that the modularized packaging of loads of a plurality of types and distributed power sources of a plurality of types in the AC/DC hybrid microgrid is realized and the modularized microgrid initiatively joins in the dispatching operation of the large power grid as an independently controllable power source/load unit, and moreover, due to reasonable design of the hybrid energy storage system structure and the connection manner thereof, seamless switching of two modes of grid connection and island becomes the natural attribute of the modularized microgrid without complex control algorithm.

The invention discloses a variable speed wind-power system based on a variable frequency transformer and a control method of the variable speed wind-power system. The variable speed wind-power system comprises a cage type wind-power unit group, a variable frequency AC bus, a booster transformer, a high voltage transmission line, a step down transformer, a variable frequency transformer and a power frequency power grid, wherein a variable frequency AC sent by the cage type wind-power unit group is collected to the variable frequency AC bus, the variable frequency AC subjected to voltage reduction of the step down transformer enters the variable frequency transformer, the variable frequency transformer converts the variable frequency AC into power frequency AC, and the power frequency AC is injected into the power frequency power grid. According to the variable speed wind-power system based on the variable frequency transformer, the single-machine capacity of the wind-power unit group can be increased, the failure rate of the wind-power unit group is reduced, the maintenance work is reduced, the effective power generation time is increased, the wind energy utilization rate can be increased, and mechanical stress and output power fluctuation are decreased. The control method is simple in control and is convenient for operation.

A clutch device for arrangement in a drive train of a motor vehicle between a drive unit and a transmission is provided. The clutch device may include a multiple-disk clutch arrangement for selective torque transfer between the drive unit and the transmission. The multiple-disk clutch arrangement may be actuable via a force transfer element supported on a disk carrier of the multiple-disk clutch arrangement.

The invention discloses an explosive welding method for a large-area lead-steel composite board, in which a base steel board and a composite lead board are adopted. The method comprises the following steps of: adding a high-strength metal board on the surface of the composite lead board, and bonding the composite lead board and the high-strength metal board together with adhesives; and proportioning special explosive as follows: 45-48 parts of expanded ammonium nitrate, 48-51 parts of sodium chloride and 4-6 parts of pearlite, ensuring a detonation velocity range of 1200m/s-1500m/s and adopting slop type explosive distribution at a far end. The method disclosed in the invention realizes the support of the lead board so that the explosive welding of the large-area lead-steel composite board can be implemented; and the method has the advantages of eliminating negative effects of surface burn and boundary effect on explosive composite, ensuring that the lead-steel composite board has the primary composite rate being higher than 98% and higher bond strength.

The invention relates to a capacitor touch screen, an electrode supporting layer, an adhering layer and an outer supporting layer of which are made of flexible material and form a mutually-clamped clamping structure so as to realize flexibility and bendability of the capacitor touch screen. Because all layers are made of the flexible material, the thickness of each layer can be freely set so as to achieve the purpose of thinness and free design of capacitor parameters; the outer supporting layer plays a role of covering and plays a role of supporting a first sensing electrode and a second sensing electrode, when the capacitor touch screen is bent, the outer supporting layer and the electrode supporting layer are correspondingly bent, the outer supporting layer and the electrode supportinglayer mutually interact to limit the deformation of the first sensing electrode and the second sensing electrode without easily generating breakage. Furthermore, the sensing electrode layer is arranged in the middle of the capacitor touch screen in the thickness direction to ensure that the first sensing electrode and the second sensing electrode are easily broken in a crossing part, thus the capacitor touch screen has higher reliability.

The invention provides a phase change fracturing method. The method includes the following steps that a fracturing fluid is injected into a stratum to generate cracks in the stratum, and injection ofthe fracturing fluid is stopped after the to-be-generated cracks reach preset requirements; a phase change reaction liquid and a time delay heat generating agent which can be subjected to a phase change reaction at preset temperature are injected into the stratum; after injection of the phase change material liquid is substantially completed, the time delay heat generating agent exerts a heat generating action to make phase change of the phase change material liquid to complete phase change fracturing. According to the provided technical scheme, since there is no solid phase injection, not only can the friction resistance of tubular columns be effectively reduced, but also the happening time and progress of the phase change reaction can be effectively controlled due to the use of the delayheat generating agent, so that a better fracturing effect is achieved. Especially for low-temperature reservoirs, a heat generation effect of the delay heat generating agent greatly increases the rate of the phase change reaction so that the phase change material liquid can rapidly form a solid phase at a preset position, the phase change time is shortened, and the probability of successful construction is increased.

The invention provides a carbon dioxide-anti-drag water compound fracturing method which comprises the following steps of: injecting liquid carbon dioxide fracturing fluid into a stratum; after a period of time, stopping injecting the liquid carbon dioxide fracturing fluid, and then injecting anti-drag water fracturing fluid not added with a propping agent; and after a period of time, stopping injecting the anti-drag water fracturing fluid not added with the propping agent, then injecting anti-drag water compound fracturing fluid carrying the propping agent, and stopping after a period of time. According to the method, different system fracturing fluids are adopted in different injection phases, and special properties of different fracturing fluids are reasonably utilized, so that the effect of enlarging crack network scale, communicating stratum primary fractures, enhancing fracture efficiency, improving the seepage environment of the stratum and improving the reservoir yield; a carbon dioxide-anti-drag water compound fracturing process is applied to a low percolation oil and gas reservoir, so that the per-well yield can be improved, and the problem that traditional fracturing process for low percolation oil and gas reservoirs is poor in productivity improvement effect.

The invention relates to a combined skin face measuring flexible multi-point support device, adopting a modularization design idea. The whole device is composed of a plurality of positioning plates and shape-regulating components. The positioning plate appears as a flat T-shape, and screw holes and matching faces are arranged on the plate. The shape-regulating component consists of a basic pillow and a nail-height regulating unit. The shape-regulating component is horizontally arranged along X direction, and the central distances are all fixed. The positioning plates are divided into two symmetrical lines along Y direction, and each positioning plate is connected with the same end of two neighboring shape-regulating components. The shape-regulating components and positioning plates of different quantities are connected and combined to form the support devices of different sizes and specifications. The quantity of the shape-regulating components and positioning plates can be determined according to the size of the skin parts. The device of the invention realizes the flexible clamping and greatly reduces the quantity of special clamps and work pieces so as to reduce cost and coordination links and to shorten preparation period, with distinct economical and time benefits.

The invention discloses a resonance bending fatigue test machine for railway sleepers and application of the resonance bending fatigue test machine, and belongs to the technical field of test machines. The resonance bending fatigue test machine for the railway sleepers comprises a base, two side upright columns, a vibration exciter, a constant-force hydraulic loading system and a control system. The two side upright columns are symmetrically arranged on the upper end surface of the base, force measuring sensors, support blocks and small support plates A are sequentially arranged on the upper end surfaces of the two side upright columns, and a railway sleeper can be supported by the two side upright columns; the vibration exciter is arranged between the two side upright columns, the lower end of the vibration exciter is supported on the upper end surface of the base by a constant-force hydraulic loading mechanism, the upper end of the vibration exciter is fastened and connected with the tested railway sleeper by a fastening support mechanism, and load applied by the vibration exciter acts on a loading location for the tested railway sleeper; force can be loaded on the tested railway sleeper by the constant-force hydraulic loading system via the vibration exciter, and the constant-force hydraulic loading system and the vibration exciter can work under the control of the control system. The resonance bending fatigue test machine and the application have the advantages that test frequencies can be increased by the fatigue test machine on the basis of resonance principles, the test cycle can be shortened, and accordingly the test cost can be saved to a great extent.

The invention discloses a circularly self-moving forepoling hydraulic support, which comprises a rail assembly, a supporting beam assembly, a supporting beam assembly moving device and a supporting beam assembly contracting and releasing device, wherein the supporting beam assembly comprises supporting beams, connecting beams, telescopic jacks and upright columns; both ends of the telescopic jacks are respectively hinged on the connecting beams and the supporting beams; the rail assembly is arranged between two upright columns of the supporting beam assembly; the supporting beam assembly moving device comprises a drive, a driving device and a connecting device; the rail assembly comprises rails and rail moving devices arranged on the rails; connecting ends of the connecting devices and the supporting beam assembly are provided with a revolute pair; and the supporting beam assembly contracting and releasing device is arranged on the rails. The circularly self-moving forepoling hydraulic support can support a tunnel roof during coal mining, can further be automatically moved and lifted, and is high in support moving speed.

The invention discloses a discrete floating type support method of a large thin plate workpiece and relates to a support method used in detection and scribing or other manufacturing process steps of a large thin plate workpiece, belonging to the field of mechanical engineering. The method comprises the steps as follows: a plurality of discrete floating units (1) are placed in a liquid (2) for enabling the floating units (1) to float in the liquid (2), the depth of the liquid (2) is greater than the height of the floating units (1), and different regions of a large thin plate workpiece (3) are supported by means of the buoyancy of the floating units (1). The discrete floating type support method can provide a simple and practical flexible support method for detection or scribing and other manufacturing process steps of the large thin plate workpiece (3), thereby solving the deformation problem of the large thin plate workpiece (3) caused by self weight, and realizing the flexible manufacturing of the large-size or high-precision thin plate workpiece.

The invention provides a recoverable mechanical pre-stressed anchor rod which comprises a screw rod, a first anchoring parts, a second anchoring parts and a sleeve pipe. The screw rod comprises a first threaded section, a second threaded section and an unthreaded section connected sequentially; the first anchoring parts comprises a first base, a first driving nut and a support unit; the second anchoring parts comprises a second base, a second driving nut and a support unit; each support unit comprises an upper support piece, a lower support piece and an ejector header; a clamping groove is formed in the first base; the second base is fixed onto the inner wall of the sleeve pipe; a strip-shaped hole is formed in the sleeve pipe; the first driving nut and the second driving nut are arrangedon the first threaded section; the first threaded section penetrates through an installation through hole of the second base; a clamping head of the screw rod is clamped into the clamping groove; thescrew rod can be limited to only rotate around the axis of the screw rod; and by rotating the screw rod, the distance between the ejector header of each support unit and the drill hole wall can be adjusted. The invention further provides an installation and recovery method of the anchor rod. The anchor rod is large in anchoring force and can solve the problems that an existing anchor rod is difficult to recycle.

The invention discloses a bionic cow-nosed ray oscillating pectoral fin driven by wires of a large-deformation flexible mechanism. The oscillating pectoral fin comprises a pectoral fin skin and a pectoral fin skeleton arranged in the pectoral fin skin, wherein the skeleton consists of a baseplate and fin rays; the baseplate is arranged in the chordwise direction of a bionic pectoral fin; fin rays with similar spanwise section shape to the original fin rays of the cow-nosed ray oscillating pectoral fin are mounted in the front part, in the middle and at the rear part of the baseplate in the pectoral fin spanwise direction; all fin rays are driven by wires to oscillate up and down; one or more soft limbs with similar chordwise section shape to the original fin ray of the cow-nosed ray oscillating pectoral fin is/are arranged on two sides of each fin ray; and all the soft limbs, as well as all the soft limbs and the adjacent fin rays, are connected through elastic thread ropes, so that the bionic cow-nosed ray oscillating pectoral fin achieves mild, smooth and continuous fluctuation transmission in the chordwise direction in the movement process, which more fits to the fluctuation of the natural original cow-nosed ray pectoral fin. The bionic cow-nosed ray oscillating pectoral fin has the advantages that spanwise flexible distribution and flexible deformation of the bionic fin rays are realized, and chordwise flexible distribution of the bionic pectoral fins and fluctuation transmission in the movement process are also realized.

The invention relates to an intelligent power distribution big data application system which comprises a data acquisition module, a data integration cleaning module, a public service module, a data analysis application module and an application display module. The data acquisition module is used for providing a standardized data interface and performing standardized access of multi-source and heterogeneous data sources. The data integration cleaning module is used for combining, associating, de-weighting and transposing data accessed to the data acquisition module in lines. The public service module uses the data processed by the data integration cleaning module. The data analysis application module builds an analysis algorithm library, analyzes power utilization behaviors of a user, builds an application model and an algorithm library and builds a power-saving application, a power utilization forecasting application, a power grid optimization application and a peak-alternation regulation application. The application display module displays data of results of the data analysis application module. Compared with the prior art, the system has the advantages that the data are cleaned, migrated on a distributed platform and integrated in a standardized manner, a user behavior analysis and power utilization forecasting application module is developed, intelligent power distribution and utilization level is improved and the like.