16results about How to "Prevent fluttering" patented technology

The utility model relates to the technical field of flour mills, and discloses a hammer type flour mill which comprises a machine body, a flour milling chamber and a collecting chamber are arranged in the machine body, a discharging port is arranged between the flour milling chamber and the collecting chamber in a communicating mode, a plurality of milling teeth are arranged on the inner wall of the flour milling chamber in an array mode, a rotating shaft is arranged in the flour milling chamber in a rotating mode, and a motor is fixedly arranged on the outer wall of the machine body and connected with one end of the rotating shaft. Each hammering assembly comprises a plurality of sleeves fixedly arranged on the rotating shaft, hammer rods are slidably inserted into the sleeves, sliding plates are arranged at the ends, located in the sleeves, of the hammer rods, hammer heads are fixedly arranged at the other ends of the hammer rods, a plurality of positioning holes are formed in the sleeves in an up-and-down symmetrical mode, and positioning grooves are formed in the sliding plates. The sliding plate penetrates through the positioning hole through a fixing bolt and is inserted into the positioning groove to be fixedly connected with the sleeve. The hammer rod can be adjusted in the sleeve in a sliding mode, so that the distance between the hammer head and the grinding teeth is changed, the device can adapt to material grinding under different hardness and humidity conditions, and the grinding efficiency is improved.

The utility model relates to nitrogen seal valve technical field, concretely for a kind of high-performance stable opening and closing nitrogen seal valve, including valve body, valve cover, valve rod, valve seat, valve flap and actuating mechanism, valve rod includes upper valve rod and lower valve rod, by setting up middle cavity sealing mechanism in upper and lower valve rod connecting part, double sealing guarantee is provided for actuating mechanism, when the sliding seal of valve rod and actuating mechanism appears wear and causes sealing failure, sealing diaphragm still can guarantee sealing effect, make lower membrane chamber be in stable operation state, guarantee the normal operation of actuating mechanism;Lower spring is set at bottom cover, by the collaborative work of lower spring and upper spring, make valve rod produce more linear, more accurate displacement response to slight pressure change, to improve overall control precision, make valve operation more stable.

The utility model discloses a drilling dust removal mechanism for aluminum substrate processing, which relates to the technical field of aluminum substrate processing and comprises a bearing plate, a hydraulic cylinder is fixedly mounted in the middle of the top of the bearing plate, a piston rod is arranged at the extension end of the hydraulic cylinder, and an extension column is fixedly mounted at the other end of the piston rod. And dust collection units are arranged on the two sides of the top of the bearing plate correspondingly, and dustproof units are arranged on the outer surfaces of the extension columns. The dustproof cover moves downwards along with the extension column, firstly makes contact with the aluminum substrate, continuously moves downwards to be extruded to slide on the outer surface of the extension column to move upwards, and extrudes the reset spring till the drill bit makes contact with the aluminum substrate for drilling. Under the elastic reverse pushing force of the reset spring, the bottom end of the dust cover is always attached to the top of the aluminum substrate and located on the periphery of the drill bit, powder generated during drilling can be covered with the dust cover and prevented from flying outwards, and then the quality of the surrounding environment is improved.

The utility model discloses a mirabilitum dehydratum screening device capable of improving screening efficiency. The mirabilitum dehydratum screening device comprises a screening tank; the feeding hopper is connected to the upper end of the screening tank; the dust recycling assembly is arranged outside the feeding hopper; an opening of the material screening concave box faces downwards, the material screening concave box is arranged in the screening tank, a feeding hose communicates between the feeding hopper and the material screening concave box, and the two sides of the lower end of the material screening concave box are both covered with screening net plates; and the material screening driving assembly is arranged outside the material screening concave box. The screening device is beneficial for effectively preventing dust from directly flying into the air, is also beneficial for timely recycling the dust of the mirabilitum dehydratum, effectively reduces the waste of the mirabilitum dehydratum, and is beneficial for driving the screening concave box and the screening net plate to swing left and right through the work of the screening driving assembly, so that the screening net plate is beneficial for swinging and screening the mirabilitum dehydratum, and the screening efficiency is improved. And the screening efficiency of the mirabilitum dehydratum is effectively improved.

A serrated panel (70) for a wind turbine blade is disclosed. The panel (70) is configured to be attached to the trailing edge of a blade to form a plurality of serrations (71) at the trailing edge of the blade. The serrated panel comprises a base part (72) for attaching the panel (70) to the trailing edge of the blade. An exterior surface (78) of the base part comprises a corrugated surface in direction between longitudinal ends of the panel such that the exterior surface comprises crests (82) aligned substantially with midpoints of bases (80) of the serrations (71) and valleys (83) aligned substantially between serrations (71).

The utility model discloses a paper conveying guide mechanism of printing machine belongs to printing mechanical technical field. The utility model adopts technical scheme, a kind of paper conveying guide mechanism of printing machine, including the guide paper wheel subassembly of being set to the paper conveying outlet of printing machine, and the regulating assembly for adjusting the position of guide wheel subassembly is equipped with on the outside of printing machine paper transmission outlet, the guide paper wheel subassembly includes wheel seat, the wheel frame is rotatably connected with the lower end of wheel seat, the wheel piece is equipped in wheel frame end, and the pressure regulating mechanism for adjusting the normal pressure of wheel piece and paper surface is equipped on wheel seat;The utility model is through the cooperation of guide paper wheel subassembly, regulating assembly and pressure regulating mechanism, realize the quick and accurate adjustment of guide paper wheel position and normal pressure, with the advantage that the normal pressure of guide paper wheel and paper surface can be conveniently and accurately adjusted, avoid the paper deformation caused by excessive pressure or the paper floating caused by too small pressure.

The utility model discloses an environmental protection device and a closed type coal conveying belt dust removal device thereof, and relates to the technical field of environmental protection equipment, and the closed type coal conveying belt dust removal device comprises an anti-dissipation channel arranged along the running direction of a coal conveying belt, the anti-dissipation channel comprises two vertical plates arranged on the two sides of the coal conveying belt and a horizontal top plate horizontally arranged above the two vertical plates. The horizontal top plate is provided with an opening used for penetrating through the dust collection channel, and one end of the dust collection channel is communicated with the opening; and the other end of the dust collection channel is communicated with the dust collection device, and the dust collection device is used for sucking the coal dust in the dissipation prevention channel into the dust collection channel and filtering the coal dust. The device can effectively reduce coal dust which is generated when the coal feeder works and floats in the air, and pollution of the coal dust to the environment is reduced.

The present application relates to a kind of local segment slice model for measuring ship slamming force, including slice segment bow model, keel beam, torque sensor, keel beam clamp, sensor clamp, slamming force sensor, I-beam, keel beam sensor axial fixing device, sectional interval break rib plate, middle sensor clamp, keel beam slamming force sensor.Each segment of the slice segment bow model of the present application has independent slamming force sensor, accurately measures the slamming force of the bow model slamming concern area and the area of large curvature change of lines;Torque sensor can measure the torsional moment of segment bow model during slamming process;Three-dimensional lines of segment can help to analyze the three-dimensional effect of segment slice during slamming process, and correct the numerical results of two-dimensional slamming calculation method;Sectional interval break rib plate reinforcing model segment stiffness, prevent segment model from being deformed and flutter by huge slamming force during slamming process, maintain the rigid properties of segment model.

Novel solid waste treatment equipment belongs to the technical field of solid waste treatment equipment, and comprises a power supply module, a power supply switch, an electric crusher, a feeding bin, a fixing frame and a box body, and is also provided with a compression mechanism, a control circuit and a prompt circuit, the power module, the power switch, the electric pulverizer, the feeding bin, the fixing frame, the box body, the compression mechanism, the control circuit and the prompt circuit are installed together, and the compression mechanism comprises a movable plate, a linear bearing and an electric push rod. Due to the shielding effect of the movable cover, peculiar smell can be prevented from flowing into the air, after solid waste is fed into the feeding bin, the photoelectric switch can output a signal to the signal input end of the control circuit, the control circuit can control the electric pulverizer to work for a period of time to pulverize the solid waste, then the pulverized solid waste is compressed, and the solid waste is recycled. And when solid waste in the box body reaches a certain amount, a worker can be automatically prompted to clean the solid waste, so that the crushed waste can be treated in time, normal work of equipment is guaranteed, and good application prospects are achieved.

This utility model discloses a floating constructed wetland, including a floating platform and a water-blocking cover. Multiple first connecting lugs are fixedly connected to both sides of the floating platform, and multiple planting baskets are snapped onto the top of the floating platform. Multiple second connecting lugs are fixedly connected to the outer wall of one side of the water-blocking cover. Fastening bolts are threaded between adjacent pairs of first connecting lugs and between the second connecting lug and a first connecting lug of one of the floating platforms. Multiple water outlet pipes are sealed and inserted into one side of the water-blocking cover, and drain pipes are inserted into both ends of the water outlet pipes. A clamp is fitted at the connection between the drain pipe and the water outlet pipe. Multiple perforations are provided on the planting baskets, and a layer of expanded clay filler is laid inside the planting baskets. A layer of silt filler is laid on top of the expanded clay filler layer. This utility model allows rainwater runoff to pass over the floating constructed wetland and drain through the water outlet and drain pipes, thereby avoiding damage to the floating constructed wetland.

The invention relates to the technical field of plastic tarpaulin processing, and provides a plastic tarpaulin processing laser cutting device which is characterized by comprising a workbench and a laser cutting assembly. A first moving assembly is installed on one side of the workbench, a supporting frame is installed at the top end of the first moving assembly, a second moving assembly is installed at the bottom end of the supporting frame, a laser cutting assembly is arranged at the bottom end of the second moving assembly, and a flattening structure is arranged on one side of the top end of the workbench. The flattening structure comprises a flattening roller, the flattening roller is installed at one end of the top of the workbench, a soft sleeve is installed on the outer side of the flattening roller, rack sleeves are installed at the two ends of the flattening roller, and installation bases are installed at the front ends of the rack sleeves. By the adoption of a double-extruding and flattening structure, secondary compaction and flattening of the plastic tarpaulin can be achieved, rough flattening and fine flattening are combined, surface wrinkles and internal stress of the tarpaulin can be thoroughly eliminated, the tarpaulin is kept in a highly flat state, and a stable and reliable machining basis is provided for laser cutting.

The utility model relates to the technical field of quartz sand screening, in particular to a dust falling device for quartz sand screening, which comprises a dust collecting component mounted at the upper end of a vibrating screen, the dust collecting component comprises a dust collecting cover fixedly covering the upper end of the vibrating screen, and a dust collecting pipe is fixedly mounted at the upper end of a discharge port of the vibrating screen. An annular pipe is fixedly installed on the outer side surface of the dust collecting cover, a plurality of dust collecting openings fixedly communicate with the outer side surface of the annular pipe at equal intervals, the filtering assembly is arranged on one side of the vibrating screen, and the discharging assembly is fixedly installed on the lower end surface of the filtering bin. The dust collecting pipes are arranged above the vibrating screen and above the discharging port of the vibrating screen, dust flying at the two positions is collected, dust flying caused by vibration during discharging of the discharging port is reduced, the dust is collected through the filter cartridge, the spiral blades rotate, the dust on the inner wall of the filter cartridge is scraped off, and then the dust is discharged through the discharging assembly. The permeability of the filter cartridge is kept, and the suction force at the dust collecting pipe is prevented from descending.

The application belongs to the technical field of garbage disposal, and particularly relates to a garbage incineration fly ash leaching desalination treatment method and device, which comprises a leaching desalination pool, the top surface of the leaching desalination pool is provided with an electric guide rail, the electric guide rail is slidably connected with a moving block, a hollow groove is formed in the moving block, the top surface of the moving block is provided with a feeding pipe which is in communication with the hollow groove, the feeding pipe is used for injecting fly ash into the hollow groove, and the bottom surface of the moving block is provided with a group of discharge pipes which are in communication with the hollow groove; the position of the moving pipe is adjusted according to the water level in the leaching desalination pool, the connecting groove on the moving pipe is immersed in water, the fly ash is injected into the feeding pipe through a feeder, the fly ash enters the hollow groove at this time, and then is directly discharged into water through the connecting groove, so that the fly ash particles are prevented from floating due to air disturbance.

The utility model relates to the technical field of measuring hoppers, in particular to a cement measuring hopper for weighing concrete powder, which comprises a measuring hopper body and a base arranged below the measuring hopper body. A dust collector is fixed to the outer side of the measuring hopper body, an annular pipe communicated with the dust collector is arranged above the measuring hopper body, and a plurality of dust collection covers inclining upwards are communicated with the inner periphery of the annular pipe. A weighing frame is arranged above the base, a weighing sensor is connected between the weighing frame and the base, a supporting plate is arranged above the weighing frame, and a material shaking driving assembly is arranged between the supporting plate and the weighing frame. According to the measuring hopper, dust flying out of the measuring hopper body can be absorbed and treated in time, a large amount of dust is prevented from flying into the air, and therefore environmental pollution is reduced, the quality of the working environment is guaranteed, the measuring hopper is more environmentally friendly, powder attached to the inner wall of the measuring hopper body can be discharged cleanly, and waste of concrete powder is effectively reduced.

The application discloses an electric control type adjustable air valve, which comprises a valve body, at least two stop blocks, a valve seat, a valve core, a lift limiter and a first spring and a second spring. The top of the valve body is provided with an air inlet, and the top of the valve body is provided with a first coil. The stop blocks are distributed on the inner side wall of the valve body. The valve seat is arranged below the valve body, and the valve body and the valve seat jointly form a containing cavity. The valve seat is provided with a through hole. The valve core is movably arranged in the through hole of the valve seat, and an exhaust passage can be formed between the valve core and the through hole. The top of the lift limiter is connected to the inner top of the valve body through the first spring, and the bottom of the lift limiter is arranged above the valve core through the second spring. The stop blocks are located outside the lift limiter. The application can adapt to different ranges of air intake working conditions. The lift height is adjusted by arranging the electromagnetic induction type lift limiter, so as to adapt to different air inlet pressures and exhaust pressures. By changing the electrification current intensity and the magnetic force, the height of the lift limiter is adjusted, so that the vibration and impact damage are avoided.

This utility model discloses a hair parting fixator for facilitating hair loss treatment by parting the hair. It includes a first hairband and a second hairband, which are hinged at one end. A first hair clip is rotatably mounted on the first hairband, and a second hair clip is rotatably mounted on the second hairband. The first hairband, the second hairband, the first hair clip, and the second hair clip are all provided with a number of comb teeth. By rotating, the first hairband and the second hairband are separated. At the same time as the first hairband and the second hairband are separated, the comb teeth comb and fix the hair, opening up the hair around the hair loss treatment area. Since the hair is of different lengths, shorter hairs will inevitably be missed after the first hairband and the second hairband are separated. The first hair clip and the second hair clip fix the shorter hairs. The above structure prevents the hair from floating, thereby ensuring the smooth progress of the hair loss treatment process.