45results about How to "Achieve close contact" patented technology

The invention provides heating devices used for bearing protection of an aerogenerator and a bearing system. The heating devices are applied to main shafts externally sleeve joint with bearings. The heating devices are arranged in interiors of the main shafts and correspond to positions where the bearings are disposed in terms of positions. Each heating device comprises multiple circular arc segments, a flexible heat source and a support device. Each flexile heat source is arranged between each circular arc segment and the inner wall of each main shaft. Each support device is used for the inner surface of each circular arc segment such that each flexible heat source is closely attached to the inner wall of each main shaft. The heating devices used for bearing protection of the aerogenerator and the bearing system have following beneficial effects: due to the fact that flexible heat sources are enabled to be closely fixed on inner walls of main shafts of the aerogenerator by means of combination among support devices and multiple circular arc segments, heat sources are provided for the bearings such that bearing grease is not frozen and fluidzed state of lubricating grease can be maintained; and service lifetime of bearings is prolonged in order to achieve close contact among the flexible heat sources and the inner walls of the main shafts of the aerogenerator.

A rolling and connecting method of heterogeneous refractory metal molybdenum and stainless steel clad plates relates to a composition method of a heterogeneous refractory metal molybdenum and the stainless steel clad plate, aiming at the problems that owing to the great difference between the physical properties of molybdenum and stainless steel, the welding stress is high, great amount of intermetallic compounds with high hardness and great brittleness can be easily produced due to direct connection, and the impact ductility of molybdenum is low in the condition of low temperature, etc. The method comprises the steps that: the connecting surface of a stainless steel plate and a molybdenum plate is milled to be flat; after the acid cleaning of the stainless steel plate, the molybdenum plate and purple copper foil, the purple copper foil is placed and fixed between the stainless steel plate and the molybdenum plate to form the clad plate which is then placed into a vacuum chamber; the vacuity is (1 to 3) multiplied by 10<-3>Pa, the heating temperature is 850 to 1050 DEG C, and the heating speed is 300 to 600 DEG C/h; after the insulation for 10 to 45 minutes, the clad plate is rolled and connected; the rolling temperature is 850 to 1050 DEG C, the compression rate is 15 to 35 percent and the rolling speed is 0.038 to 0.2m/s; the clad plate after being rolled is cooled to be below 200 DEG C in vacuum and then the clad plate is taken out. The method can realize the purpose of the high strength connection between the molybdenum, the ductility of which is low in the condition of low temperature, and the stainless steel.

The present invention provides a deep order reasoning method based on occlusion feature learning, comprising the following steps: obtaining an over-segmented image through the Berkeley algorithm, using an occlusion edge classifier to extract over-segmented edges from common edges; after color model processing, Extract occlusion edge features; select sparse-based classifiers, train and determine occlusion edges; remove false edges by fusing same-layer regions, and avoid misjudgment problems in the process of occlusion edge classifiers; adopt a new triple description operator to realize semi-local depth order reasoning; finally, through modeling, describe the local depth order as a partial order relationship, and use the relevant knowledge of graph theory to transform the global depth order reasoning into a kind of The problem of effective path, so as to complete the depth order reasoning of the whole image.

The invention belongs to the field of lithium ion batteries, and discloses an intercalation material for a lithium-sulfur battery. The intercalation material comprises a substrate layer and an isolation layer attached to the substrate layer, wherein the substrate layer is a polypropylene diaphragm in the lithium-sulfur battery; the raw material of the isolation layer is an n-type bismuth tellurideblock, and the bismuth telluride block is directly sputtered on the polypropylene diaphragm through a magnetron sputtering method, so that a layer of thin film is formed on the substrate layer, namely the isolation layer, and the isolation layer is used for forming a barrier on the surface of the polypropylene diaphragm, the lithium polysulfide can be prevented from shuttling back and forth between positive and negative electrodes in the charging process of the lithium-sulfur battery, and the shuttle effect of the lithium polysulfide is inhibited. According to the intercalation material for the lithium-sulfur battery provided by the invention, the shuttle effect of the lithium-sulfur battery is effectively relieved, and the cycling stability of the lithium-sulfur battery is improved.

The invention discloses a minimally invasive supporting type rectum electrical impedance characteristic detecting device, and belongs to the technical field of medical equipment. The minimally invasive supporting type rectum electrical impedance characteristic detecting device comprises an endoscope, a detecting electrode, a pressure sensor, a supporting rod, a stepping motor and a signal generating and collecting device. The supporting rod is mounted on an endoscope pipe in a sleeved mode through a circular ring and a connecting rod connected with the circular ring, the detecting electrode and the pressure sensor are arranged on the supporting rod, the unfolding mode of the supporting rod is umbrella-shaped unfolding, and the stepping motor rotates to drive the circular ring to move in the same direction along the endoscope pipe, so the connecting rod and the supporting rod are driven to enable the supporting rod connected with the electrode to stretch outwards, and the detecting electrode and the pressure sensor mounted on the supporting rod can make tightly contact with the inner wall of a rectum. When the stepping motor rotates reversely, the supporting rod returns to an original position, and the detecting electrode is separated from the inner wall of the rectum. According to the minimally invasive supporting type rectum electrical impedance characteristic detecting device, the detecting electrode and other instruments can make tightly contact with the inner wall of the rectum, tiny changes of diseases of rectum tissue can be reflected, the position of diseased region can be found in time, and three-dimensional imaging is carried out.

The invention provides an electric resistance welding method for a dissimilar metal joint. The electric resistance welding method is used for welding a laminated structure, wherein an outer layer is made of iron or an iron-based alloy, and an inner layer is made of metal with the density smaller than 5g/cm < 3 > or the melting point lower than 800 DEG C. The electric resistance welding method comprises a splashing stage, and in the splashing stage, light metal or low-melting-point metal in the middle of the stacked structure is separated in a splashing mode, so that iron or iron-based alloy layers in a welding interface directly form a connecting structure to complete welding. According to the method, the formation of brittle intermetallic compounds on the welding interface of the dissimilar joint can be avoided, the mechanical property of the joint is improved, and reliable connection between dissimilar metals is realized. The invention further provides a dissimilar metal joint.

The invention discloses a connector. The connector comprises a semi-arc first connecting main body and a semi-arc second connecting main body, wherein the first connecting main body and the second connecting main body are connected through a buckle assembly; the first connecting main body and the second connecting main body are each provided with an outer shell, an inner shell and a semicircular inner hole. The semicircular inner hole is clamped with an insulation shielding layer of the cable, and the inner shell is sleeved on the outer surface of the cable; the first connection main body is also provided with a through pipe hole, and the pipe hole is arranged between the insulation shielding layer and the aluminum sheath layer of the cable. The invention further discloses a device for repairing poor electric contact in the high-voltage cable. The device comprises a pressurizing gas cylinder, a repairing liquid storage bottle, repairing liquid, a first liquid guide pipe, a residual liquid collector, a vacuum pump and the connector. According to the invention, the electric contact performance between the insulation shielding layer and the aluminum sheath of the cable can be effectively improved, and the cable failure rate caused by poor contact between the insulation shielding layer and the aluminum sheath of the cable is reduced, so the operation reliability of the defective cable is greatly improved.

The invention discloses Pt nanoparticle/hydroxyl bastnaesite nanocluster/graphene composite and a preparation method thereof. On the basis of hydroxyl bastnaesite nanocluster/graphene composite prepared, a solvothermal method, with chloroplatinic acid as a platinum precursor, is utilized to adjust pH of a reaction solution before oil bathing is performed to reduce platinum from the solution; platinum is dispersed evenly on the surface of the hydroxyl bastnaesite nanocluster/graphene composite and is in tight contact with hydroxyl bastnaesite nanoparticles. The concept herein is simple and clear; the prepared composite has the structural intactness of platinum, hydroxyl bastnaesite and graphene; since hydroxyl bastnaesite attaches to the surface of graphene, alcohol fuel batteries are improved; the high specific surface area of graphene helps improve electrical conductivity; tight contact of the components is achieved; the synergy of the components effectively promotes activity and durability of platinum-catalyzed methanol oxidation. The composite and the preparation method thereof have a promising application prospect.

The invention relates to a welding device for a flat plate collector and a user method of the welding device, wherein a metal runner in the flat plate collector is of a semi-circular structure; the welding device comprises a left electrode roller, an insulator and a right electrode roller which are arranged sequentially; and an annular groove matching with the circular arc-shaped surface of the metal runner is arranged on the insulator. Based on the electric resistance welding principle, the close contact of metal bars and a heat absorption plate is realized by the compression of rollers; meanwhile, electric current flows through the electrodes at two sides of the rollers to form an inductive effect, so that the welding fixation between the metal bars and the heat absorption plate is realized; the welding between the metal bars and the heat absorption plate has strength requirement and no sealing requirement, so that the rollers do not have higher requirements on moving speed and pressure strength; the manual welding can be carried out completely by using a handle, so that the cost of the present ultrasonic and laser welding equipment is reduced greatly.

This invention relates to the design and production of oxygen-generating groove in the field of electrochemistry. It is specially about a kind of piled up oxygen-generating groove than use air electrode as cathode, metal electrode as anode, as well as neutral or alkaline polyampholyte solutions. It uses two splints to press several air electrode, metal electrode, seal ring, functional ring, gas room ring. This invention resolves the problem of leakage and creepage of traditional oxygen-generating groove structure. It is easy to assemble and maintain.

The invention provides a heat pipe body, a heat pipe, a heat pipe roadbed system of a yin-yang slope roadbed and a construction method of the heat pipe roadbed system, and relates to the technical field of road construction. The heat pipe body comprises a pipe body and a first switch device. The pipe body is used for containing a condensation medium and comprises a first condensation section and an evaporation section which are arranged in an axial direction. The first switch device is arranged on the pipe body and used for connecting or disconnecting the evaporation section and the first condensation section. An effective working length and the effective working time of the heat pipe with the heat pipe body can be controlled through the first switch device, and the working efficiency of the heat pipe is enhanced.

The invention provides a depth order inference method for an object in a monocular image, which comprises the steps of extracting an over-segmentation image, acquiring over-segmentation edges, extracting shielded edge features, performing feature subspace learning, classifying the edges by using a ridge regression model, performing semi-local depth order inference and performing global depth order inference. According to the invention, shielded edges are detected through using a sparse coding based classifier, the time and the space are saved, and the calculation efficiency is improved; a new triple description operator is adopted, and shielded edge description is performed by taking an edge and angular points at two ends as a clue, thereby realizing close contact of points between edges; a kernel function ridge regression model is adopted to further acquire a most reliable edge probability graph, and the shielded edges are extracted, thereby providing enough clues for depth order inference; and the process of global depth order inference is transformed into a directed graph model through modeling, and problem solving is transformed into a problem of solving an effective path of the directed graph.

The invention discloses an ejection type injection molding machine convenient to maintain a heating cylinder. The ejection type injection molding machine comprises an injection molding machine body, a feed hopper, a heating mantle, a fixing bolt, a mounting table, a feeding box, an injection molding port, a heating wire, a heating cavity and a bearing, wherein the feed hopper is arranged above the injection molding machine body; the lower portion of the feed hopper is connected with the feeding box; the mounting table is arranged at one side of the feeding box; meanwhile, the output end of the feeding box is connected with a spiral pushing ram; a mounting groove is formed in the middle of the upper portion of the mounting table; the heating cylinder is placed on the mounting groove; limiting chutes are formed in the upper end faces, at the two sides of the mounting groove, of the mounting table; connecting columns are arranged in the limiting chutes in a penetrating mode; a splicing opening is formed in one end of the heating cylinder; and a splicing strip is integrally formed at the other end of the heating cylinder. According to the ejection type injection molding machine convenient to maintain the heating cylinder, by improving the structure of the heating cylinder of an existing injection molding machine, the heating cylinder can be conveniently detached, and the heating cylinder can be prevented from falling off, and accidents can be avoided.

The invention discloses a beam assembly structure for fixing glass, and relates to the technical field of glass fixing. The structure aims at solving the problems that when an existing beam assembly structure is used for fixing glass, positioning between glass panels is inaccurate, dislocation is liable to occur, the structure is complex, and the installation action is tedious. A first unit beam assembly structure and a second unit beam assembly structure are equal in size, are both located at the front end of a wall body and each comprise a mounting bottom plate. Mounting side plates are mounted on the two sides of the front end of each mounting bottom plate correspondingly, a stand column is mounted between the two mounting side plates, a fixed beam structure is arranged at the front endof the stand column, the fixed beam structure comprises a first vertical beam, a second vertical beam, a first cross beam and a second cross beam, the first vertical beam is located at the upper endof the fixed beam structure, and the second vertical beam is located at the lower end of the fixed beam structure.

The invention discloses an anti-derailment bearing vehicle for drifting a tunnel. The anti-derailment bearing vehicle comprises a frame and a supporting foot, wherein a wheel is arranged at the lower part of the supporting foot; the frame comprises a front cross beam and a back cross beam; the front cross beam is fixedly connected with a first front connecting beam and a second front connecting beam which are arranged in a bilateral symmetric way; the back cross beam is fixedly connected with a first back connecting beam and a second back connecting beam which are arranged in a bilateral symmetric way; the back end of the first front connecting beam is fixed with a first limiting plate; the back end of the first limiting plate is welded with a first connecting block; the first connecting block extends into a first rotatable joint side plate and is connected with the first rotatable joint side plate by a first connecting shaft pin; the first limiting plate and the first rotatable joint side plate are arranged at an interval; the back end of the first rotatable joint side plate is welded with a first shaft sleeve; the front end of the first back connecting beam extends into the first shaft sleeve and is in clearance fit with the first shaft sleeve; and the front end of the first back connecting beam is axially located together with a first baffle by a first bolt. Through the adoption of the anti-derailment bearing vehicle for drifting the tunnel, the wheel can be effectively prevented from derailing.

The invention belongs to the technical field of pump sealing, and particularly relates to an annular sealing gasket for a liquid pump. The main structure comprises a sealing gasket base, a cylinder, a boss, a bolt penetration hole, a first inner ring sealing line, a second inner ring sealing line, a first outer ring sealing line, a second outer ring sealing line, an outer circle and an inner circle, wherein the cylinder is arranged on the periphery of the inner circle of the sealing gasket base; the boss is arranged on the cylinder; the bolt penetration hole is formed in the sealing gasket base; the first inner ring sealing line, the second inner ring sealing line, the first outer ring sealing line and the second outer ring sealing line are arranged on the sealing gasket base; the air tightness at the inlet connection position of the liquid pump is increased; and sealing line structures are arranged on the upper face and the lower face of a sealing gasket disk, so that close contact of an impeller and a water inlet pipe during connection is achieved, gas-liquid leakage is reduced, the lift value is increased and the sealing effect is improved effectively. The structure of the annular sealing gasket is simple and ingenious; materials are used scientifically and reasonably; the preparation cost is low; the use effect and the energy-saving effect are excellent; mass production is facilitated; and the application environment is friendly.

The invention discloses a sample rod for a magnetothermal effect measuring instrument. The sample rod comprises a sample rod body and a sample chamber, the sample chamber is arranged at the front end of the sample rod body, and a rear cone top is arranged on the rear side wall of the sample chamber; a threaded hole is formed in the front side wall of the sample chamber, a front jackscrew is arranged in the threaded hole, and the sample chamber is provided with a sample chamber cover. The invention further discloses a using method of the sample rod for the magnetothermal effect measuring instrument. According to the invention, a temperature sensor is tightly attached to a sample, the measurement precision is ensured, and the sample is prevented from being basically contacted with surrounding substances, so that the requirement of adiabatic measurement is met.