414results about How to "Guaranteed friction" patented technology

The invention discloses a method for forming thin-walled parts through stamping and drawing, which is used for reducing the thicknesses (0.4-2mm) of raw materials to 50-100% of the original thicknesses the raw materials; the raw materials comprise magnesium alloys, aluminum alloys, titanium alloys, high temperature alloys and complex splice-welded plates; and the method specifically comprises the following steps that: a flexible forming technique is adopted with the aid of moulds and a hydraulic machine, wherein the moulds are in concave-convex fit with the hydraulic machine; upper and lower blank holders and concave and convex moulds are respectively subjected to hydraulic pressure exertion control; the nominal pressure of a main hydraulic cylinder exerted on the concave and convex moulds is 25000-4500 KN, and the nominal pressure of a side-pressing hydraulic cylinder accounts for 50-67% of the nominal pressure of the main hydraulic cylinder; and the maximum operating pressure of a liquid chamber is 150MPa. By using the method disclosed by the invention, an expected effect is obtained, and the qualification rates and efficiencies of parts are obviously improved; and meanwhile, the hydroforming technology fills in the gaps in industry application, and lays a solid foundation for the thorough solving of technical bottlenecks existing in actuating cylinder cover forming and the research and preparation of future novel thin-wall parts and sheet metal forming parts.

The invention relates to a bidirectional eccentric loading device for bamboo bending members, and an installation method. The device comprises two steel cylinder sleeves which are in vertical mirror symmetry, two ball hinged seats, and the bamboo bending members. The steel cylinder sleeves are disposed on the ball hinged seats, and the bamboo bending members are inserted into hollow steel cylinders in the steel cylinder sleeves. The device is advantageous in that 1), the structure is simple and is easy to install, the main body of the loading device only comprises the steel cylinder sleeves and the ball hinged seats, and the installation step is easy; 2), the device is clear in force transmission and is good in integrity, the steel cylinder sleeves can serve as attached corbels fixed at two ends of the member so as to enlarge the force bearing range of an end face, and the ball hinged seats achieve the hinging of the members; 3), the eccentric position is flexible and controllable, ball hinges and the steel cylinder sleeves are connected through holding-on teeth, and the movable ball hinges change the relative position of the steel cylinder sleeves and the ball hinges, thereby achieving the design of different eccentric distances easily; 4), the device is high in popularity, a bamboo member in any rectangular shape can be connected with the device through a steel filling piece and a reserved bolt hole, and the device can be used for carrying out the bidirectional eccentric bearing test of many types of bamboo materials.

The invention discloses a suspended cable automatic deicing device which comprises an upper housing and a lower housing. The upper housing and a lower housing correspond to each other and are connected with a fixing buckle and a fixing bolt. The lower housing is provided therein with a feeding shaft, a first leak hole and a second leak hole. The upper housing is provided with an ice crushing rod, a bracket plate, a rotating shaft, a cam, and a first motor. The ice crushing rod is provided with a tooth groove plate and a first backing plate. A scraper plate, a torsion spring and rib teeth are arranged between the first leak hole and the second leak hole. A metal ring and brush hairs are arranged between the lower housing and the upper housing. An upper placement plate, a fixed convey wheel, and a second motor are arranged on the right end of the upper housing. A lower placement plate, a movable pressing rod, a movable pressing wheel and a second backing plate are arranged on the right end of the lower housing. After being started, the suspended cable automatic deicing device drives a cable and a device to move relatively at constant speed so as to continuously remove ice in cooperation with the ice crushing rod, the scraper plate and the brush hairs.

The invention provides an energy-saving road sweeping vehicle which comprises a tractor, a hydraulic system, a traction rod, a first hydraulic cylinder, a cleaning brush, a swinging arm and the like, wherein the hydraulic system is arranged at the rear part of the tractor, and is respectively connected with oil inlet and outlet openings in the two ends of cylinder bodies of the first hydraulic cylinder and a second hydraulic cylinder through pipelines; the power of the hydraulic system is provided by an engine of the tractor; one end of the traction rod is hinged to the rear part of the tractor, and the other end of the traction rod is hinged to the lower part of a rear axle; the first hydraulic cylinder is arranged between the traction rod and the rear axle. A rotation axis of a central turntable and an angle of a pavement can be adjusted at any moment according to pavement conditions and different wastes, so that the cleaning brush is always in an optimal working state. The energy-saving road sweeping vehicle provided by the invention is simple in structure, low in cost and good in sweeping effect.

The invention discloses an analog control rod assembly of a nuclear power station. The analog control rod assembly comprises a star frame, analog control rods and a weight steeve; analog control rod mounting holes are formed in the star frame; the centers of these mounting holes deviate from 0.1-0.5 mm relative to the theoretical centers of the corresponding guide holes of control rod guide cylinders; and the offset directions of at least two mounting holes relative to the theoretical centers of the corresponding guide holes are different. Compared with prior art, the analog control rod assembly of the nuclear power station, provided by the invention, has the advantages that through the mode of control rod malposition, the friction contact form in a friction test is the same as that of the true condition; the frictional force of the control rod guide cylinders, obtained by the test, can be ensured to be closer to the true value under the effect of lateral flow; and the test result can be extrapolated to all design conditions.

The invention provides a water-stopping sponge rubber material, a preparation method thereof, a sealing strip and a preparation method of the sealing strip and an automobile, the water-stopping spongerubber material is prepared from the following components in parts by weight: 100 parts of ethylene-propylene-diene monomer v8600, 20-30 parts of terpene resin, 20-30 parts of brominated butyl rubber, 6-10 parts of zinc oxide, 1-3 parts of stearic acid, 1-3 parts of polyethylene glycol, 30-50 parts of carbon black HS45, 70-90 parts of R-2291 paraffin oil, 6-10 parts of an OBSH foaming agent, 6-10parts of an AC foaming agent, 5-7 parts of foaming assistant K4-P, 1.5-2.5 parts of sulfur, 7-12 parts of hygroscopic agent CaO and 6-10 parts of an accelerant. The water-stopping sponge rubber material disclosed by the invention has the characteristics of low density, low damping and high viscosity, can be conveniently arranged in a sealing sleeve, has good water stopping performance, and has very good practicability.

The invention discloses a photovoltaic panel fixing device for intelligent building which is convenient to adjust daylighting angle, including the base, Support bar and fixing bar, the left and rightends of the base are penetrated with fixed bolts, the upper end of the supporting column is penetrated with a bearing plate, the right side of the support bar is provided with a first motor, the upperend of the fixing rod is fixedly connected with the fixing plate through a connecting shaft, the rear end of the limiting plate is penetrated with an adjusting shaft, The brush is fixedly connected with the connecting plate through a screw rod, the right end of the adjusting shaft is provided with a second motor, the right side of the supporting column is provided with a third motor, the upper surface of the bearing plate on the left side of the fixing rod is provided with a water tank, the right side of the water tank is penetrated with a water supply pipe, and the upper end of the water supply pipe is connected with a sprinkler head. The photovoltaic panel fixing device for intelligent buildings, which is convenient to adjust the daylighting angle, can rotate the photovoltaic panel, enable the photovoltaic panel to collect solar energy to a greater extent, and can clean the impurities on the surface of the photovoltaic panel.

The invention relates to a pressure auto-balancing anti-high-pressure water gushing air bag. The pressure auto-balancing anti-high-pressure water gushing air bag comprises an air bag body, an air compressor pump and an air bag storage room; the air bag body is internally divided into two independent parts of an elastic air bag and a hydraulic balanced bag through a partition plate, the elastic air bag is internally provided with a pressure relief pipeline, one end of the pressure relief pipeline penetrate through the partition plate and communicated with the hydraulic balanced bag, and the other end of the pressure relief pipeline stretches out of the elastic air bag to face the side of high pressure water gushing and sealed with a pressure relief plug; the air compressor pump is connected with the elastic air bag through an air pipe, and the elastic air bag is inflated; the air bag storage room is arranged on a lining and used for installing the air bag body and the air compressor pump. Compared with the prior art, the air bag is simple in structure and low in cost, and the water plugging effect is not affected by the irregular shape of the cross section; in addition, the air bag also has the secondary safety reserve, the function of being capable of automatically balancing ultra-high water pressure and the like.

The invention discloses a stone pulverizer capable of improving crushing efficiency, which comprises a casing, a feed inlet arranged at the top of the casing, and a discharge outlet arranged at the bottom of the casing, and a crushing device is arranged inside the casing, so that A vibrating screen is provided above the pulverizing device, and the side wall of the vibrating screen is set through the top wall of the housing. The side wall of the vibrating screen is provided with a first installation groove, and the installation groove is arranged near the lower end of the vibrating screen. The bottom of the installation groove is connected with a push block through a first spring, and a pulley is provided on the push block, the side wall of the housing is hollow, and a telescopic motor is arranged in the side wall of the housing, and the shaking screen is close to the telescopic One side wall of the motor is provided with a card slot. The present invention is equipped with multiple sets of crushing wheels to improve the crushing efficiency of the stones, the vibrating screen makes the stones entering the crushing device more uniform, and the fine sieve can put the stones with insufficient crushing degree back into the feeding port for crushing.

The invention relates to a preparation method of hard alloy for manufacturing automobile tyre studs. The preparation method comprises the steps of ingredient preparing, wet grinding, drying, pressing, sintering and passivating so as to prepare the hard alloy. The prepared hard alloy comprises the following ingredients in percentage by weight: 86.5%-88% of WC, 9.5%-10.5% of Co, 0.5%-1.5% of Ni and 1%-2% of TiC. The hardness (HRA) of the hard alloy prepared by the method disclosed by the invention is 88.5-89.5, the strength of the hard alloy is more than or equal to 2400N/mm<2>, the density of the hard alloy is 13.6-13.9 g/cm<3>, and the RS value of the hard alloy is 80mm-100mm. The stud manufactured by the hard alloy prepared by the method disclosed by the invention is high in strength, good in impact toughness, high in wear resistance and good in abrasion synchronicity with an automobile tyre, and can ensure the friction between the automobile tyre and the ground and prolong the service life of the automobile tyre.

The invention discloses a cold-resistant, corrosion-resistant, flame-retardant and anti-interference double-sheath cable. The cable comprises an outer sheath, an anti-torsion layer, an inner sheath, awater-blocking filler and a cable core; the inner sheath is extruded on the outer side of the cable core, the anti-torsion layer is wrapped on the outer side of the inner sheath, and the outer sheathis extruded on the outer side of the anti-torsion layer; and the cable core comprises three wire cores, a tensile rope and a fixing rope. The inner sheath, the anti-torsion layer and the outer sheathare sequentially wrapped on the outer side of the cable core; double protection can be effectively performed on the cable; the cold resistance, moisture resistance and corrosion resistance of the cable are improved; the wire core can be effectively fixed and dragged through the fixing rope; the cable core is prevented from deforming and breaking due to mutual extrusion in the bending process, thefriction force between the cable core and the sheath can be effectively improved through the circularly wrapped fixing rope, the slippage between the cable core and the inner sheath is avoided, the generated stress is homogenized and eliminated through the ductility of the fixing rope, the cracking and deformation of the cable are avoided, and the service life of the cable is prolonged.

The invention relates to the technical field of pipeline inner wall polishing, in particular to an inner wall polishing device with a self-adaptive adjusting structure for pipeline machining. The inner wall polishing device comprises a driving assembly and a second motor, and the second motor is fixedly connected to the right side of the driving assembly. A fixing support is fixedly connected to the outside of the driving assembly and the second motor, an adjusting assembly is arranged on the right side of the fixing support, and a traction assembly is movably connected to the right side of the adjusting assembly. The traction assembly comprises first traction rods, rotating blocks are movably connected to the right sides of the first traction rods, and clamping blocks are movably connected to the right sides of the rotating blocks. The second motor is fixedly connected to the bottom of the traction assembly, and a fixing ring is arranged on the right side of the second motor. Through linkage arrangement of the adjusting assembly and the traction assembly, height adjustment of polishing assemblies can be achieved, and then self-adaptive adjustment of polishing pieces on the inner diameter of a pipeline is achieved.

The invention discloses an aircraft which comprises a unilateral wing used for rotatablely generating lift force, and a thrust device used for pushing the unilateral wing to rotate around the barycenter of the aircraft, wherein an aileron used for controlling a fly direction is arranged on the unilateral wing; and the thrust device is connected onto the unilateral wing, and the barycenter of the aircraft deviates from the center position of the unilateral wing along the length direction. The unilateral wing rotates around the barycenter of the aircraft to generate the lift force, so that the aircraft can vertically rise. Therefore, the aircraft disclosed by the invention has the advantage of vertical take-off and landing. Meanwhile, according to the aircraft, the lift force of the aircraft is generated by the rotation of the unilateral wing, and the front-and-back as well as the left-and-right fly direction is controlled by the aileron, so that the aircraft has the advantage of being simple in structure. According to the gyroscopic effect generated by the means that the unilateral wing rotates around the barycenter of the aircraft, the wind resistance of the aircraft and the stability of fly can be effectively improved.

The invention discloses a capturing device with position compensation. The capturing device comprises a drive system, a control system and a bottom plate provided with at least one walking wheel. The capturing device further comprises a target mechanism used for intercepting a target, a moving mechanism arranged on the bottom plate and connected with the target mechanism, and a feedback mechanism. The moving mechanism is used for driving the target mechanism to move on the bottom plate. The feedback mechanism is arranged on the bottom plate and comprises a movement detection part and an orthogonal omnidirectional wheel part which is connected with the movement detection part, and the feedback mechanism is used for obtaining the deviation value between the bottom plate and the target and feeding back the deviation value to the control system. By adoption of the device, although the device slides in an inertial manner at the target drop point position, the feedback mechanism records and feeds back the sliding path to the control system, meanwhile, the control system makes the target mechanism move on the bottom plate, the target mechanism is static relative to the drop point, and the target is captured. The capturing device is simple and compact in structure and fast in feedback real-time responding, and the target mechanism can be accurately controlled at the target drop point.

The invention provides a star wheel bobbin rotary disc which is used for placing bobbins and providing paper for a molding machine. The star wheel bobbin rotary disc is composed of a rotary disc body, a gear transmission system, two bobbin supports and the like. The rotary disc body is composed of a detachable sealing metal casing, and the gear transmission system is composed of a motor, a central shaft, a plurality of groups of gears meshed or in linkage connection with one another, two transmission shafts and the like. Each bobbin support is formed by an eccentric supporting plate, a bobbin shaft, a bearing, a bobbin base, a braking assembly, a cover cap, an adjusting nut and the like. The rotary disc body can rotate around the central shaft, the motor can drive the central shaft, the gear and the two transmission shafts to rotate. Inner shaft holes of the eccentric supporting plates are sleeved on the transmission shafts, bearing inner rings are sleeved on the bobbin shafts, and bearing outer rings are connected with the bobbin bases in matching mode. The bobbins are arranged between the bobbin bases and the cover caps. The braking assemblies are used for controlling rotating or braking of the bobbin bases and the like, and the adjusting nuts are used for adjusting axial positions of the bobbins. The star wheel bobbin rotary disc is compact in components, small in rotary space, capable of replacing the bobbins automatically, good in splicing stability, and high in efficiency.

The invention discloses an automatic water draining device. The automatic water draining device comprises a valve body, an inner cylinder is arranged in the valve body and vertically arranged, the outer wall of the inner cylinder is covered with an annular coil rack, and a coil used for producing a magnetic field is wound on the coil rack; a sewer pipe is arranged on the upper portion of the valvebody, downwards stretches into the inner cylinder and communicates with the inner cylinder; and a spring jacking sealing structure and a magnetic adsorption water draining structure are arranged in the valve body. The invention further discloses a fuel filter which adopts the automatic water draining device and has an automatic water draining function and a using method thereof. According to theautomatic water draining device, the fuel filter using the automatic water draining device and the using method, water can be automatically drained in time, the condition that a water collecting cavity is filled with water is avoided, the service life of a filter element is prolonged, the condition that an engine is damaged due to the fact that fuel oil contains water is prevented, the using costof the fuel filter with the automatic water draining function and a motor vehicle is reduced, and the maintenance operation frequency is decreased.