21results about How to "Inhibition rigidity" patented technology

The application provides a kind of bionic artificial stomach device based on electrostatic hydraulic drive and its application, belong to bionic medical instrument technical field.The device includes flexible bionic stomach cavity, composite peristaltic wave drive module including multiple electrostatic hydraulic drive units and programmable control module.Programmable control module applies high voltage electric signal to each electrostatic hydraulic drive unit according to preset timing, drive flexible bionic stomach cavity outer wall to produce continuous, distributed surface contraction deformation, to form annular advancing peristaltic wave propagating from fundus to antrum.The application realizes continuous surface driving of flexible interface through electrostatic hydraulic effect, solves the problem of unreasonable contact mode, discontinuous peristalsis and mechanical distortion in the prior art, improves the physiological relevance of in-vitro simulation of gastric mechanics, digestion process and drug transport.

The utility model discloses a flexible welding positioner which comprises a driving rotating side and a driven supporting side. The driving rotating side comprises a gear motor, a rotating shaft, a fixing flange, a starting button and a fixing support. The gear motor is fixedly installed on the fixing support, and the rotating shaft is in transmission connection with the output end of the gear motor and used for driving a workpiece to rotate around the rotating shaft. The fixed flange sleeves the rotating shaft and is used for assisting in positioning the driving end of the workpiece; the start button is electrically connected with the speed reduction motor and used for controlling start-stop or rotating speed adjustment of the speed reduction motor. The driven supporting side comprises a ground track, a limiting block, a roller, a bracket, a hand bolt, an adjusting screw rod and a flexible chain; the roller is mounted at the bottom of the bracket and is matched with a guide rail of the ground track, so that the bracket linearly slides along the ground track; the limiting blocks are fixedly installed at the two ends of the ground track and used for limiting the sliding range of the rollers. The clamp cost is reduced through equipment generalization, the efficiency is improved through automation, rework is reduced through structural design, and cost reduction, efficiency improvement and quality improvement cooperation are achieved.

This invention discloses a worm gear and forming wheel composite gear grinding machine for processing large gears, including a bed and a workpiece clamping mechanism and a composite machining mechanism arranged opposite to each other on the bed. The composite machining mechanism includes a column, a column slide plate, and a rotary table. The column is slidably mounted on the bed, and the column slide plate is slidably connected to the column. One side of the rotary table is rotatably connected to the column slide plate, and the other side of the rotary table is connected to a grinding feed assembly and a dressing feed assembly. The grinding feed assembly includes a grinding slide plate that slides along a first direction, a grinding spindle mounted on the grinding slide plate, and a grinding wheel. The dressing feed assembly includes a dressing slide plate that slides along a second direction and a dressing assembly. The grinding feed assembly and the dressing feed assembly are used for workpiece processing and grinding wheel dressing, respectively. This invention integrates grinding and dressing on the same rotary table, shortens the transmission chain, and realizes rapid switching between processing and online grinding wheel dressing.

The application discloses a kind of modulation depth optical switches based on plasmon-induced transparency in terahertz band, the switch includes: five-layer stack structure, from bottom to top in turn: polyimide substrate layer, rectangular graphene pattern layer, polyimide intermediate layer, circular graphene pattern layer on the intermediate layer, non-absorbing dielectric cover layer.Polyimide substrate plays a supporting role, graphene pattern is coupled with incident light.Incident light is incident from the top of chip, is transmitted to graphene the 2nd layer through cover layer, passes through the 2nd layer circular graphene, and occurs effect, is transmitted to intermediate layer medium through the 2nd layer circular graphene, after transmission through intermediate layer medium, again with substrate surface rectangular graphene effect, finally from substrate transmission.Realize the on-off of terahertz waveband transmission signal and amplitude adjustment effectively solve the technical defects of traditional terahertz optical switch, such as low modulation depth, slow response speed, single regulation mode and poor integration.

The invention provides a full-oil-free high-cleanliness air compressor which comprises a cavity, end covers are arranged at the upper end and the lower end of the cavity, a movable disc is arranged in the cavity, a first connecting rod shaft is installed between the front ends of the interiors of the upper end cover and the lower end cover, a connecting rod is arranged on the outer wall of the circumference of the first connecting rod shaft, and a second connecting rod shaft is arranged in the right end of the connecting rod. First eccentric wheel supports are installed at the upper end and the lower end of the second connecting rod shaft, an eccentric wheel is arranged between the two first eccentric wheel supports and provided with an eccentric wheel spindle, and the first eccentric wheel supports are provided with second eccentric wheel supports. The oil-free high-cleanliness air compressor has the advantages of being reasonable in structure, low in manufacturing cost, free of maintenance or long in maintenance period, simplified in maintenance process and high in cleanliness output capacity.

The application discloses a kind of based on sea condition multimodal perception's offshore dynamic docking sealing method, obtains propagation path parameter and calculates initial fluctuation index, obtains the deviation value sequence corresponding to path fluctuation;Get the corrected attitude vector;By weighted fusion method, reduce the credibility weight of corresponding direction data, and recalculate overall credibility distribution;Determine the optimized attitude vector;Judge whether path fluctuation is stable, if unstable then iteration updates deviation value sequence;Get final position attitude calculation result, for the correction of docking position deviation, output accurate docking instruction sequence.The application enhances the buffering and absorption capacity of equipment to external impact, prevents rigid collision and sealing failure caused by sudden surge or flow field pulsation, improves the safety, flexibility and sealing reliability of offshore dynamic docking.

This invention discloses a belt anti-scratch system and method for a belt sampling machine. The system includes a support frame, a protective cover, and a main controller. The support frame is mounted on the belt conveyor frame, with the protective cover connected to its upper part. Industrial cameras are installed inside the protective cover and at the bottom of the belt for real-time monitoring of the belt's condition. A rotating support is mounted on the support frame, with a rotating shaft passing through the protective cover. One end of the shaft is connected to a reducer and a motor, while the other end holds a sampling head placed inside the protective cover, forming a rotatable sampling structure. The main controller is electrically connected to the industrial cameras and the motor. It acquires belt image data through the industrial cameras, processes the data, and then controls the motor to drive the sampling head, achieving monitoring of the belt's operating status and anti-scratch control during the sampling process. Through structural integration and intelligent control, this system effectively prevents the sampling head from scratching the belt, improving the safety and reliability of equipment operation.

This invention relates to a bidirectional protection device and method for lifting beams and wire ropes. The device includes at least one protection module, comprising an upper protection seat and a lower protection seat, which are fixedly connected by a plug-in mechanism. The upper protection seat has a rebar clearance groove; the lower protection seat has a connecting groove that connects to a wedge-shaped connecting plate and is equipped with the plug-in mechanism. The upper and lower arc-shaped rope support grooves together form a wrapping channel, which has an arc-shaped groove in which an arc-shaped slider is installed. Both the upper and lower protection seats have inner grooves containing elastic damping mechanisms. The inner walls of both the upper and lower protection seats are covered with a biomimetic damping protective layer. This invention converts tensile force into self-increasing clamping force through wedge self-locking, is adaptable to various types of precast concrete beams, is easy to assemble and disassemble, reusable, and equipped with standardized protection methods, significantly improving lifting safety and construction efficiency.

The utility model relates to an assembled electric power passage, including assembly box, still including the passage pipe of installation in assembly box both sides, the inside fixed mounting of assembly box has the partition baffle, and the inside front and rear both ends of assembly box all install fixed slide rail, the surface sliding installation of fixed slide rail has bracket assembly, the top of assembly box installs maintenance top cover, the passage pipe presents array distribution, and the end of passage pipe is provided with sealing connecting piece, and sealing connecting piece is used for the connection between passage pipe, the utility model discloses the connection through sealing connecting piece, realizes the connection between multiple passage pipes, and thin connecting piece and rubber layer, can carry out elastic connection, when subsiding, absorb the displacement amount that uneven settlement of ground produced, avoid the rigid tear or bending deformation that appears in passage pipe splicing part, protect structural integrity.

The application belongs to the technical field of manipulators, and discloses a feeding and discharging manipulator for wind power generator accessories and a working method thereof, wherein the manipulator comprises a five-axis mechanical arm, the end of the five-axis mechanical arm is fixedly provided with an upper loading plate, a middle loading plate is arranged below the upper loading plate, a plurality of elastic connecting columns are connected between the upper loading plate and the middle loading plate, a position detection mechanism is arranged on the outer wall of the upper loading plate and the middle loading plate, a bottom loading plate is arranged below the middle loading plate, and a rotary shifting structure for driving the bottom loading plate to rotate horizontally is arranged at the bottom end of the middle loading plate; a double-shaft holding mechanism for synchronously clamping or releasing two shaft pieces in the radial direction is arranged on the bottom surface of the bottom loading plate, shaft end vertical pressing structures are arranged at both sides of the inside of the bottom loading plate, and the shaft end vertical pressing structures are used for applying vertical pressing force to the two end positions of the shaft piece after the shaft piece is in place; the application cooperatively designs vertical active pressing and radial clamping operation, realizes rigid limiting of the shaft piece, and improves the limiting effect.

The application discloses a low-cost soft mold manufacturing method applicable to a T-shaped rib reinforced skin structure, and comprises the following steps: adopting an isolation film and a vacuum bag to integrally encapsulate a laminated plate skin blank body, a T-shaped rib blank body and a T-shaped soft mold on a forming tool; adopting a hot press tank to perform co-curing forming of a "wet" state laminated plate skin and a "wet" state T-shaped rib according to the curing requirements allowed by the material specification of carbon fiber prepreg, and obtaining the T-shaped rib reinforced skin structure; the application has the beneficial effects that: through the structure splitting of step S1, the customization of special tooling (a forming tool, a T-shaped rib pre-compaction tool and a soft mold forming tool), the accurate positioning and cooperation of step S4 and the co-curing forming of the "wet" state laminated plate skin and the "wet" state T-shaped rib of step S6, the defects of poor adaptability of the T-shaped rib to the skin, easy interference of R angles, easy wrinkling of edges and the need of post-grinding in the traditional gluing process are effectively solved.

This invention discloses an additive manufacturing-based inertial amplification nonlinear low-frequency vibration isolation metamaterial structure, vibration isolation device, and its performance control method. The vibration isolation metamaterial structure includes a rhombic frame structure, an inertial amplification unit, and a square spring structure. The square spring structure is arranged within the rhombic frame structure, with its two ends connected to a pair of opposite corners of the rhombic frame structure. The elastic extension direction of the square spring structure is parallel to the diagonal of this pair of opposite corners of the rhombic frame structure. The inertial amplification unit has a centrally symmetrical structure, including a rigid rod, two counterweights, and two diagonal rods. The center of symmetry of the inertial amplification unit, the center of the rhombic frame structure, and the center of the square spring structure all coincide in projection. Therefore, the vibration isolation metamaterial structure of this invention significantly widens the bandgap range and enhances low-frequency vibration isolation performance, exhibiting excellent performance in suppressing longitudinal waves in the 0-1000Hz low-frequency range, increasing vibration damping, and energy absorption.

The application discloses a kind of flame-retardant high-flexibility crosslinked polyethylene insulated power cable and preparation method thereof, belong to cable technical field.The inside to outside includes conductor, insulating layer, filling layer, tape layer and sheath layer in proper order.Conductor uses the 5th or 6th soft copper conductor, insulating layer includes polyethylene, ethylene-vinyl acetate copolymer and magnesium hydroxide modified by vinyltriethoxysilane and polybutadiene, filling layer is alkali-free glass fiber rope coated with aluminum hydroxide powder on the surface, prepared by impregnation-extrusion process, sheath layer includes DOPO-PEG and pentaerythritol phosphate ester compounded intumescent halogen-free phosphorus flame-retardant system and organic modified montmorillonite.The application realizes efficient halogen-free flame-retardant by multilayer synergistic flame-retardant design, and has high flexibility and good weather resistance simultaneously.

The invention relates to the technical field of urban heat supply, and discloses a heat supply system multi-heat-source joint scheduling method and system based on an ant colony algorithm, and the method comprises the steps: obtaining real-time temperature data, carrying out the preprocessing, obtaining a temperature distribution map, calculating a deviation value between each node temperature and a preset expected temperature, carrying out the quantification of the deviation value, and carrying out the calculation of the real-time temperature data. Obtaining a temperature drift vector; calculating the contribution value of each heat source to each node, and generating a heat source contribution evaluation matrix; if the contribution value is lower than a preset contribution value threshold value, an output parameter of a heat source corresponding to the contribution value is adjusted, and a heat supply task distribution scheme is obtained; performing simulation operation according to the heat supply task distribution scheme, recording a test temperature drift response, and calculating a system stability index; and if the system stability index meets the system stability requirement, the heat supply task allocation scheme is applied to an actual heat supply network, and a multi-heat-source joint scheduling scheme is obtained. The method can solve the problem of uneven resource distribution of the heat supply system in a dynamic environment.

The utility model relates to the technical field of spindle cooling, in particular to a mechanical spindle air cooling device for a spindle box, which comprises a spindle frame, a radiator mounted in the spindle frame, a cold air frame fixedly mounted at the upper end of the spindle frame, a plurality of vent holes formed in the upper surface of one end of the spindle frame, and a first air inlet formed in the upper surface of the other end of the spindle frame. A spindle motor is installed in the spindle frame, a cooling fan is installed at the upper end of the cold air frame, and a cooling liquid hole is formed in the upper end of the radiator. The cooling device has the beneficial effects that cooling liquid can be injected into the radiator through the cooling liquid hole, meanwhile, the cooling fan at the upper end of the cold air frame is started, air in the main shaft frame can be driven to flow after the cooling fan is started, airflow enters the main shaft frame from the first air inlet in one end of the main shaft frame and flows through the radiator, and the radiator is filled with the cooling liquid; and the heat is conveyed into the cold air frame through the ventilation holes so as to be drained to the outside, so that the heat productivity is reduced.

The present application belongs to the field of honeycomb forming, and relates to a method for preventing R-angle bridging of a honeycomb sandwich part. The method comprises the following steps: cutting prepreg: cutting honeycomb lower skin prepreg and honeycomb upper skin prepreg into square zigzag shapes with anti-skid belt tethering area; the space between the square zigzags is used for tethering the anti-skid belt; laying the pieces in turn in the order of blank pages, and then carrying out honeycomb cutting, layering, paste vacuum bagging and curing.

This utility model discloses a protective steel wire rope. This protective steel wire rope aims to solve the technical problem of existing technologies that use rubber, nylon, or metal braided layers to wrap steel wire ropes. While these provide some mechanical protection, the sheaths are usually fixed and non-extensible, affecting the flexibility and dynamic performance of the steel wire rope. The protective steel wire rope includes a wire feeding box, with a drive motor bolted to one end. A feeding roller is installed at the output end of the drive motor. Through a telescopic protective tube employing a first telescopic protective layer, a second telescopic protective layer, a third telescopic protective layer, and a circular protective steel ring, it can extend or retract synchronously with the raising and lowering of the steel wire rope. This avoids the rigid constraints of traditional fixed sheaths or the jamming problems of segmented protective covers, preventing the intrusion of external dust, moisture, and corrosive media, reducing rust and wear of the steel wire rope, and exhibiting good impact resistance, cut resistance, and wear resistance.

A self-driven transposition power system based on pressure-torsion composite energy storage and tangential avoidance comprises a rack, a rotation transposition mechanism, a pressure-torsion composite energy storage mechanism, an inertia transmission mechanism and an energy storage release trigger frame. The rotary shifting mechanism is arranged on the rack; a plurality of pressure-torsion composite energy storage mechanisms are uniformly distributed on the rotary transposition mechanism along the circumferential direction; the energy storage release triggering frame is fixedly arranged on the rack and is matched with the pressure-torsion composite energy storage mechanism for use; the inertia transmission mechanism is arranged between the rotation transposition mechanism and the rack and is in transmission connection with the rotation transposition mechanism and the rack. The inertia transmission mechanism is used in cooperation with the pressure-torsion composite energy storage mechanism. All transmission teeth of a transmission rack on the compression-torsion composite energy storage mechanism and a transmission gear on the inertia transmission mechanism are in a tooth thickness changing mode, and each transmission tooth is of a gradually-reduced transition structure with the middle thick and the two ends thin. On the premise of not depending on external reset power and complex control, smooth transmission decoupling and multi-station self-driven transposition can be achieved.

The utility model relates to multistage ore dressing technical field discloses a kind of ore dressing device with multilayer vibrating screen mechanism, comprising: screen frame, the symmetrical installation slot of being opened to the opposite two side inner walls in screen frame;Several screen meshes, several screen meshes are installed in the installation slot by first buffer, and several screen meshes are sequentially distributed in the screen frame from top to bottom;Driving element, the driving element acts on second buffer, for the screen mesh provides power, and the driving element is fixed on the screen frame by fixed plate.In the device, several screen meshes are sequentially installed from top to bottom in screen frame, can carry out multiple screening to ore, distinguish different ore grain, improve screening efficiency, first buffer and second buffer are installed on screen mesh, can effectively reduce noise.

The invention relates to the technical field of machining, in particular to a core pulling structure of a stamping die, which comprises an upper die assembly and a lower die assembly, the upper die assembly comprises a driving slotting tool and a bending male die which are arranged at an interval, the bottom of the driving slotting tool is provided with a driving inclined surface, the lower die assembly comprises a sliding block and a bending female die, the bending female die is provided with a clamping block, and the clamping block is provided with a clamping groove. The clamping block is clamped to the sliding block, the side wall, deviating from the bending female die, of the sliding block is sequentially provided with a guiding inclined face, a limiting supporting face and an attaching inclined face from top to bottom, the guiding inclined face is used for being matched with the driving inclined face, an R-angle bending part and an avoiding inclined face are arranged on the forming face of the bending female die, and the avoiding inclined face is connected with the R-angle bending part; a tail receding groove is formed in the receding inclined face, and a preset fall is formed between the driving slotting tool and the bending male die in the vertical direction. The beneficial effects of the invention are that. The machining cost of the complex female die is reduced, protective demolding is achieved, and the product is prevented from being damaged during demolding.

The application relates to the battery technical field and discloses a battery pack and a power utilization device, which comprise a box body, a battery pack, a switching piece and a mounting seat. The battery pack comprises a plurality of single batteries arranged and arranged, the battery pack is accommodated in a containing cavity of the box body, and the mounting of the battery pack is realized. The mounting seat is located at one side of the battery pack, thereby providing a connecting basis for the side of the battery pack. An output row and the switching piece are connected to a first mounting portion of the mounting seat, a second mounting portion of the mounting seat is connected to the first mounting portion and movably connected to the box body, and the mounting seat has a certain movement allowance relative to the box body and the battery pack. When the battery pack expands due to charging and discharging, the expansion force of the battery pack acts on the output row, the switching piece and the mounting seat, the second mounting portion can adaptively move, the output row, the switching piece and the mounting seat have the movement allowance at one side of the battery pack, and rigid extrusion between the structures is effectively avoided.