13results about How to "Meet flexibility" patented technology

The invention discloses a microalloyed high-toughness martensitic stainless steel cutter head as well as a preparation method and a preparation mold thereof. Stainless steel comprises the following components in percentage by weight: 0.3%-0.7% of C, 0.3%-1.0% of Si, 0.5%-1.5% of Mn, 16%-18.5% of Cr, 1%-2% of Ni, 0.3%-0.8% of Mo, 0.1%-0.35% of V, 0.1%-0.25% of Nb, less than or equal to 0.02% of S, less than or equal to 0.02% of P and the balance of Fe. Firstly, raw materials are smelted into molten iron; then adding a deoxidizing agent and precoated sand into the molten iron for molding, and performing sand mold casting and pouring to obtain a cutterhead blank; carrying out heat treatment on the cutter head blank; and finally, shot blasting and polishing are conducted on the cutterhead subjected to heat treatment. The martensitic stainless steel cutterhead has a metallographic structure which takes a martensitic structure as a main structure, takes austenite as an auxiliary structure and dispersedly distributes CrC, VC and NbC particles, the hardness of the martensitic stainless steel cutterhead is 40-45 HRC, the impact toughness of the martensitic stainless steel cutterhead reaches 92-95 J / cm < 2 >, the abrasion resistance of the cutterhead is longer, the service life of the cutterhead is longer, and the abrasion loss of the martensitic stainless steel cutterhead is reduced by 70% compared with a cutterhead without alloy elements.

The application relates to the technical field of composite copper foil preparation, in particular to a PET composite copper foil with high peeling resistance and oxidation resistance and a preparation method thereof. The preparation method of the PET composite copper foil with high peeling resistance and oxidation resistance comprises the following steps: PET composite copper foil preparation and PET composite copper foil composite treatment. In the application, the inert structure of a PET surface is broken through corona treatment, and a polar group is introduced; then, a reinforcing liquid containing a silane coupling agent and nano silicon dioxide sol is coated to form a polar transition layer, so that the interface bonding force and the peeling resistance of the PET and the metal layer are improved through chemical bonding and physical anchoring; then, a layer of oxidation-resistant barrier metal layer is formed by using a physical vapor deposition method; then, the PET composite copper foil is placed in a copper-containing electrolyte, and electrolysis treatment is carried out by electrifying, so that a layer of copper foil is deposited, and the PET composite copper foil is obtained; and finally, the obtained PET composite copper foil is subjected to a surface treatment process.

This application belongs to the field of adhesive coating technology and discloses an adhesive coating assembly, including a mounting bracket, a mounting tube, a rotating tube, and an adhesive supply assembly. A drive assembly is mounted on the mounting tube, and a first disc is mounted at the lower end of the rotating tube. The first disc has a first upper through-hole and a second upper through-hole symmetrically arranged on it. A fixed shaft is vertically mounted on the bottom surface of the first disc, and a second disc is rotatably mounted on the fixed shaft. The second disc has a first lower through-hole and a second lower through-hole symmetrically arranged on it. A nozzle is mounted on the bottom surface of the second disc corresponding to each of the first and second lower through-holes. A fixed assembly is mounted on the rotating tube. When the first upper through-hole aligns with the first lower through-hole, adhesive is discharged from the first lower through-hole; when the second upper through-hole aligns with the second lower through-hole, adhesive is discharged from the second lower through-hole. The radial distances of the first and second lower through-holes from the axis of the rotating tube are different, allowing for different widths of adhesive coating by switching between the first and second lower through-holes, thus meeting diverse production needs.

This invention relates to the field of bone plates and discloses a minimally invasive pressure-type metal locking bone plate, comprising a first bone plate and a second bone plate. The first and second bone plates are rotatably mounted together via a rotating assembly, which is then locked and fixed between the first and second bone plates by a locking assembly. This invention includes a first bone plate, a second bone plate, a rotating assembly, and a locking assembly. The rotating assembly allows adjustment of the angle between the two bone plates, thus better satisfying the flexibility of angle adjustment during bone setting. Furthermore, an arc-shaped segment is provided at one end of the first bone plate, and a guide segment at one end of the second bone plate slides within an arc-shaped groove in the arc-shaped segment. After sliding to a suitable position, it is fixed with screws, increasing the stability between the first and second bone plates.

The present application provides a sunlight-resistant colored electrochemical energy storage fabric based on recycled cotton powder and a preparation method thereof, belonging to the technical fields of flexible electronic textiles and electrochemical energy storage. The preparation method first deposits a TiO2 film on the recycled cotton powder by ALD technology, and then performs mild hydrothermal synthesis to obtain a TMOs@TiO2@CP composite powder with a three-layer nested structure. Among them, the TiO2 film protects the internal recycled cotton powder from erosion during the hydrothermal reaction and is tightly combined with the TMOs functional layer through Ti-O-TM covalent bonds, improving the structural stability and interfacial bonding force of the composite powder. The present application uses the inherent color characteristics of different transition metal oxides to replace traditional black carbon-based materials, endowing the energy storage fabric with rich color choices and meeting the aesthetic and design requirements of high-end textiles. The process route of the present application avoids the damage to the inherent flexibility and structure of cotton fabrics by drastic means such as high-temperature carbonization.

The present application relates to the technical field of online learning data security, and relates to an online learning platform data security access control method.The present application calls the historical operation behavior of a user before the user applies for data access after identity verification, analyzes the antecedent association of the applied access operation behavior sequence and the historical operation behavior, extracts the reference access operation behavior sequence of other users with the same attribute data in accessing the current data, compares and outputs the matching degree of the applied access operation behavior sequence, dynamically adjusts the access permission according to the analyzed risk value of the user in accessing the current data, increases the risk recognition accuracy of the user operation behavior, and according to the deviation degree of the access operation data and the user behavior portrait after the adjustment of the user access permission, determines the dynamic trust score in combination with the historical trust score of the user, realizes the quick response means when abnormal access operation occurs, and provides fine user trust management for the shuttle machine in the learning platform.

The utility model relates to the technical field of biomass energy processing, in particular to a biomass fuel extrusion forming device, and solves the problem that in the prior art, the quick replacement requirement of an extrusion block (namely a forming frame) is ignored, so that the production cost is reduced in the production process. When extrusion blocks of different specifications or sizes need to be replaced to adapt to production of granular fuels of different sizes, the operation process is tedious and complex, and consumed time is long. A biomass fuel extrusion forming device comprises a machining table and a mounting frame. A forming frame is detachably connected to the center of the top of the machining table, the mounting frame is connected with the top of the machining table, and connecting cylinders are arranged on the two sides in the mounting frame. A pressing plate is arranged at the top of the forming frame and detachably connected with a moving column in the connecting cylinder through a connecting assembly, and the moving column is driven by a vertical lifting structure. According to the utility model, the rapid replacement of the extrusion block is realized, the operation process is simplified, the replacement time is greatly shortened, and the production efficiency and the flexibility are improved.

This utility model discloses an automatic loading and unloading robotic arm structure for a glass double-sided straight-edge machine, relating to the technical field of glass double-sided straight-edge machines. It includes a base assembly and a robotic arm assembly. A movable turntable assembly is connected to the middle of the base assembly, and the robotic arm assembly is mounted on the top surface of the movable turntable assembly. A material-grabbing component is connected and installed at the end of the robotic arm assembly away from the movable turntable assembly. This automatic loading and unloading robotic arm structure for a glass double-sided straight-edge machine, by incorporating the robotic arm assembly and the movable turntable assembly, maximizes the overall structural flexibility of the device. This ensures that the material-grabbing component can perform fast and stable loading and unloading operations on the glass material. The structural design of the material-grabbing component ensures stability during the loading and unloading process. The base assembly drives the movable turntable assembly, which is connected to the robotic arm assembly and the material-grabbing component, to perform stable horizontal movement.

The application belongs to the technical field of automobile equipment manufacturing, and discloses a flexible automatic production equipment for automobile multi-model and multi-process production, which comprises a work station safety peripheral device; a clamping and fixing device for implementing production work on a workpiece, a robot welding device, a clamping jaw carrying device, a first buffer device, a first welding robot, a second welding robot, a stud welding device, a second buffer device, a second carrying robot, a visual detection device, a laser marking device and a belt conveying device are arranged in a production area formed by the work station safety peripheral device. The flexible automatic production equipment for automobile multi-model and multi-process production with high integration and intelligent flexibility can be provided through mutual cooperation of the components. The application has the advantages that seamless switching production for different models can be realized to meet the flexible, automatic, high-efficiency and high-qualification production requirements of modern automobile manufacturing.

The utility model belongs to the field of live ammunition firing, and relates to a live ammunition firing device. The bullet shooting assembly comprises a bullet shooting box, the bullet shooting assembly comprises a pushing cavity, the pushing cavity is formed in the upper position of the interior of the bullet shooting box, a rotating hole is formed in one end of the bullet shooting box, a closing plate is installed in the rotating hole through a pin shaft, and a spring is installed at the end, away from the closing plate, of the interior of the pushing cavity. The end, close to the closing plate, of the spring is fixedly connected with a limiting plate, the end of the shifting block penetrates through the pushing hole to extend out of the outside, electric push rods are symmetrically installed in the installation cavity, push plates are fixedly connected to the tops of the telescopic ends of the electric push rods, a supporting assembly is installed on the ammunition sending box, and through cooperative operation of the ammunition sending assembly and the supporting assembly, the ammunition clips are sent in time; the time consumed for taking ammunition clips at different positions is shortened, the ammunition clip replacement efficiency is improved, and the effect of integrating ammunition distribution and stable supporting is achieved.

The invention relates to a data acquisition board supporting multi-protocol interface dynamic switching and a configuration method thereof. The acquisition board comprises a microprocessor module, an acquisition interface module and a software system, wherein the acquisition interface module consists of a GPIO (General Purpose Input / Output) port of the microprocessor module and a peripheral circuit. A plurality of GPIO (General Purpose Input / Output) ports of the acquisition interface module can be configured into a target port group, electrical characteristics (such as level conversion and pull-up resistance) are adjusted through a peripheral circuit, and protocols such as UART (Universal Asynchronous Receiver / Transmitter), IIC (Inter-Integrated Circuit) and SPI (Serial Peripheral Interface) are A software system analyzes a configuration command, a GPIO port is dynamically recombined into a new target port group (formed by continuous / discontinuous GPIO ports), and flexible switching of the number of protocol signal lines (for example, a two-line IIC is converted into a four-line SPI) is supported. And during switching, a logic of firstly configuring a new interface and then breaking an old interface is adopted, so that the service continuity is ensured. According to the method, hardware does not need to be replaced, multi-protocol adaptation is achieved through local / remote configuration, the method is suitable for miniature intelligent weather stations, environment monitoring and other scenes, operation and maintenance cost is reduced, and data collection continuity is improved.

The utility model discloses a kind of cement production clinker stirring equipment, including stirring rod, the top end of stirring rod is equipped with protection pole, protection pole outside is equipped with protective sleeve, protective sleeve outside is equipped with control sleeve, control sleeve side is equipped with driving wheel, protection groove is opened in the outside of protection pole, fixed plate is equipped in the outside of protective sleeve, multiple screw nuts are equipped on fixed plate, driven wheel is connected in the side of screw nut, moving sleeve is equipped in the outside of protective sleeve, screw rod is equipped in the side of moving sleeve, control sleeve is equipped in one end of protective sleeve, multiple moving blocks are equipped in the side of control sleeve, moving spring is equipped in the outside of protective sleeve, adaptive sleeve is equipped in the inside of control sleeve, multiple fixed blocks are equipped in the outside of protective sleeve, adaptive block is equipped in the outside of adaptive sleeve, inclined slot is opened in the inside of protective sleeve, inclined plate is equipped in inclined slot, movable block is equipped in the side of inclined plate, let go slot is opened in the inside of movable block, movable spring is equipped in let go slot, the utility model realizes the flexible adjustment to overload protection threshold value, and guarantees the structure stability after threshold value adjustment.

The utility model discloses a portable movable supporting device which is used for supporting a roof cover plate and is characterized in that the portable movable supporting device comprises a top beam, sliding rods and a plurality of supporting assemblies, the sliding rods are arranged on the two sides of the top beam in parallel, and the supporting assemblies are supported below the top beam at intervals. The top beam and the supporting assembly are both connected to the lower portion of the roof cover plate in a supporting mode, and the side end of the supporting assembly is slidably connected with the sliding rod. According to the supporting device, flexible adjustment of the position of a supporting point is achieved, the whole supporting device can be conveniently moved to a new working area, and therefore the requirements for flexibility and convenience of the supporting device in different scenes are met, and meanwhile resource waste is reduced.