94results about How to "Shedding evenly" patented technology

A respiration hood assembly is effected from a thin-walled headpiece nested within the periphery of a mating exterior housing that includes a filtered aperture. The nested engagement between the headpiece and the housing is also useful in capturing one edge of a plastic membrane skirt that is thus suspended to drape over the person wearing the headpiece. A battery powered electric fan is deployed within the housing to draw ambient air through the vent aperture into the space shrouded by the skirt. The nested headpiece arrangement is useful in retaining other fibrous towels or tissue to extend the usefulness of the assembly and a parallel connection is provided to a motor vehicle battery to extend the period of electrical excitation.

A rolling type precision seeding device for small and medium-sized seeds comprises a push rod and a seed box; a spindle is mounted at the front end of the push rod; the seed box is rotationally connected onto the push rod with the spindle used as the axis; multiple seeding devices are mounted on the circumference of the seed box; and each seeding device comprises an arc-shaped plate, a seed bin, a seed receiving groove and a duck mouth, the arc-shaped plate is movably connected with the seed box, a seed taking spoon is mounted on the inner arc surface of the arc-shaped plate and is movably connected with the arc-shaped plate, a through hole is formed in the arc-shaped plate, one end, located on the outer arc surface of the arc-shaped plate, of the through hole communicates with the inside of the duck mouth, a fixed piece in the duck mouth is fixedly connected with the arc-shaped plate, the other end of the through hole communicates with a seed outlet in one end of the seed bin, a seed inlet is formed in the side surface of the other end of the seed bin and communicates with one end of the seed receiving groove, the groove opening of the seed receiving groove is opposite to the seed taking spoon, and gaps are formed between the groove opening of the seed receiving groove and the seed taking spoon and between groove opening of the seed receiving groove and the arc-shaped plate. The precision seeding device is high in mechanical seeding accuracy, good in quality and uniform in spacing, seeds, manpower and time can be saved, and the emergence rate can be guaranteed.

The invention relates to a multi-tangential-flow combined rape threshing, separation and stalk crushing integral device. The device comprises a feeding and preliminary threshing device, a main threshing device, a re-threshing device, a stalk crushing device, a clamping belt loss monitoring device and a notch board clearance adjusting device. The device is applicable to graded threshing of rape which is inconsistently matured, the threshing and separation efficiency is high, the loss is small, and notch board clearance can be adjusted in real time through a feedback system of the clamping belt loss monitoring device. The multi-tangential-flow combined rape threshing, separation and stalk crushing integral device has the advantages that not only can the agricultural mechanical and intelligent level in China be improved, but also the rape harvesting quality can be improved and the market space is wide.

The invention is a method and device for extracting stalk fiber, characterized by comprising the steps of: (1) stock preparationú”(2) cuttingú”(3) cookingú”(4) dehydratingú”(5) extracting fiberú” and (6) filtering, and the device comprises a stalk fiber extractor and a filter, where the stalk fiber extractor comprises a steel wire wheel whose peripheral surface is bestrewed with projecting points; and the filter comprises a screen wheel whose outer surface is of a steel wire sieve bestrewed with sieve pores and which is below the steel wire wheel, and one axial end of the screen wheel is connected with an exhaust fan. And the device can be driven by tractor through drive mechanism to directly extract and outputting the fiber. And the invention can synthetically utilize stalks, reducing wood consumption and beneficial to environmental improvement and applied to town and country.

The invention provides a piece of grinding stone, a grinding member including the grinding stone, and a manufacturing method of the grinding member. The grinding stone is formed by a grinding stone composition through mixing and hot compression and includes perduren and a plurality of grinding particles dispersed around the perduren, the sulphur content of the perduren in the range of 10-30 wt%. The manufacturing method of the grinding member includes a first mixing step, a second mixing step, and a hot compression forming step. The manufacturing method, by means of controlling the sulfuration crosslinking of the perduren, enables the grinding particles of the grinding stone to be properly come off, when the formed grinding member grinds an article to be grinded which is less in bending strength caused by cutting, and therefore, the polishing strengthening of the article to be grinded is facilitated and the bending strength of the article to be grinded can be recovered.

The invention relates to the technical field of ironmaking agents, in particular to a mold release agent. The mold release agent is prepared by mixing and stirring a dry material and water, the dry material comprises, by weight, 0.5-1.5% of carboxymethylcellulose, 10.0-15% of sodium bentonite, 50-60% of low carbon coal slurry, 15-20% of aluminum-magnesium refractory mortar, 10-15% of coal powder and the balance water, wherein the weight of the water is 9-11 times of the total weight of the dry material. The preparation method comprises the steps that when being poured, the mold release agent forms a sintered layer of 1-2 mm under the high temperature of molten iron, an isolation layer can be effectively formed between the molten iron and a cast iron mold, a cast iron block can smoothly fall off from the cast iron mold, the mold release performance of the mold release agent is good, the mold release rate is up to 100%, the cast iron mold can be protected and is not easily deformed, theservice life of the cast iron mold can be remarkably prolonged, the low carbon coal slurry is generally thrown away as waste, the low carbon coal slurry is used as the main component of the mold release agent, and waste using is achieved, so that the cost of the release agent is low, and popularization is facilitated.

This proposal discloses a limestone crushing device in the field of mining machinery, including a casing, a crushing rod and a negative pressure fan. The top of the casing is provided with a feeding port and the bottom is provided with a dust removal port; Directly below the feeding port, the negative pressure fan is installed at the dust removal port, and a screening mechanism is provided on both sides and below the crushing rod, and the screening mechanism includes an elastic screening net made of steel foil. There is a rotating roller fixedly connected by a fixed frame, and the screen mesh is driven and connected to the outer surface of the rotating roller. The screening mesh and the rotating roller form a U-shaped transmission channel. The surface of the rotating roller is provided with a cleaning column that fits the mesh of the mesh. A plurality of screening screens are connected side by side on the rotating roll, and a cutter is arranged between adjacent screening screens, and the cutting knife is fixed on the surface of the rotating roll, which can effectively prevent the problem of serious dust accumulation of residual limestone in the crushing device, so that the crushing device able to work.

The invention discloses a plant nutrient granulator using a piston gas jet to prevent wall-sticking. The structure includes a driving device, a charging hopper, an wall-sticking preventing granulationdevice, a discharging port, a maintenance door, and a control cabinet. The driving device is mounted on the control cabinet and is connected to the control cabinet by bonding. The charging hopper isconnected to the wall-sticking preventing granulation device by welding. According to the invention, a gas guiding chamber and a gas pressure guiding chamber which are separated by a separating platefor preventing pressure release communicate with each other through the rotation of a main wheel. Meanwhile, a heat conduction layer and a pressing element heat and pressurize gas inside the pressureguiding chamber. A clearance between a self-weight piston and a valve port slowly decreases due to the gravity action of the piston, and so the pressure speed of sprayed hot air gradually increases. Agranulation groove and the surface of nutrient balls are pre-heated to reduce the moisture and viscosity, the thrust of the sprayed gas is used to smoothly separate the nutrient balls from the granulation groove, and then the sprayed hot gas dries the surface of the dropped nutrient balls to prevent the nutrient balls from sticking to each other.

The invention relates to a special sand mold coating material produced from alumina powder as a main raw material. The technical scheme is as follows: the special sand mold coating material comprisesthe following raw materials by weight: 5.3kg to 6.7kg of water, 10.75kg to 14.75kg of alumina powder, 6g to 10g of xanthan gum and 38g to 42g of polyethylene. According to the special sand mold coating material, the production cost of an electrically-fused brick sand mold coating material is greatly reduced, and the coating material cost of electrically-fused bricks per ton can be saved by about 200 RMB; the alumina powder has refractoriness capable of reaching 2,010 DEG C to 2,050 DEG C, and thus, the requirements of high-temperature resistant coating materials of electrically-fused brick sand molds on high-temperature resistance can be met; the market price of the alumina powder per ton is 3,200 RMB, and the use cost of the coating material can be greatly reduced as the electrically-fused brick sand mold coating material; and by using the alumina powder as the sand mold coating material, the fitness is higher, a layer of crust is formed after the coating material is sintered, thus, gas generated from resin combustion is prevented from polluting brick faces, crusts formed by the coating material at high temperatures will successfully and naturally fall off during brick discharging, the brick faces are more convenient in cleaning, and the efficiency of cleaning of the brick faces is increased.

The invention discloses a spherical surface detection tool of a ball socket part, and the spherical surface detection tool comprises a standard cylinder and a base, the base comprises a positioning pin shaft, a circular truncated cone and a guide column which are coaxial from bottom to top, a through hole is formed in the center of the standard cylinder, the center hole is matched with the guide column, and the diameter of the upper end face of the circular truncated cone is matched with the diameter of a lower boundary section circle of a detection area. The height of the circular truncated cone and the diameter of the lower end face meet the standard that the base does not interfere with the spherical surface when placed into the ball socket. The size verification of the transition area between the ball socket spherical surface and an R5 rounded corner is realized, the out-of-tolerance phenomenon of the area is avoided, and the smooth falling of a booster ball head is further ensured.

The invention discloses a gap forming type hardened soil treatment method, and belongs to the technical field of soil remediation. Hardened soil is pre-softened, gap forming main balls are thrown intothe deep part of the soil in a ploughing manner, a magnetic field effect is applied above the soil to force the gap forming main balls to migrate to the surface from the deep part of the soil, a macroscopic gap forming phenomenon is formed, in addition, in the process of migrating the gap forming main balls to the soil surface, due to the structural characteristics, the gap forming main balls canbe partially inserted when encountering hardened soil blocks, gas is forced to expand through extrusion action to trigger release of gas making microspheres, and the gas making microspheres are dissolved and react to release a large amount of gas after making contact with residual moisture in the soil; and the soil blocks are loosened and disintegrated by using sharply increased gas in the soil blocks to form a microscopic gap forming effect, and meanwhile, the dissolved and residual gas making microspheres also migrate upwards under the action of a magnetic field to assist in improving the gap forming effect, so that the loosening and gap forming effect on the hardened soil can be greatly improved in a short time.

The invention provides a discharge device adjustable centrifugal machine which comprises a chassis, a rotating drum, an inner discharge device and an outer discharge device, wherein the rotating drum is rotationally mounted in the chassis and is driven to rotate by a first driving device; the inner discharge device comprises a second driving device, a driving rod, a connecting assembly and a cutter assembly; the driving rod stretches into the rotating drum from the upside; the second driving device drives the driving rod to move up and down; the outer discharge device comprises a vent pipe stretching into a part between the chassis and the rotating drum; a plurality of nozzles are formed on the vent pipe; the vent pipe is communicated with a blower; the nozzles face towards the rotating drum; the cutter assembly comprises a cutter rest, a cutter and a hair brush; and the cutter and the hair brush are respectively arranged on the two sides of the cutter rest. The discharge device adjustable centrifugal machine discharges more easily and cleanly, and the service life is increased.

The invention relates to the technical field of paint production equipment, in particular to a particle mechanical grinding device of metallic paint. The particle mechanical grinding device comprisesa hopper, a vane blade and a tool apron. The hopper is arranged on the upper portion of a top cover, and the hopper and the top cover are connected in an embedded manner. A static grinding disc is located on the lower portion of the top cover, and the static grinding disc and the top cover are connected through a fixed bolt. A cooling tank is arranged in the static grinding disc, and the cooling tank and the static grinding disc are connected in an inlaid manner. A cooling circulating pipe is arranged on the upper portion of the top cover in a penetrating manner, and the bottom of the coolingcirculating pipe is connected with the cooling tank. A dynamic grinding disc is located below the hopper, and the tool apron is arranged at the top of the dynamic grinding disc. Through the structuralimprovement, the particle mechanical grinding device has the advantages that integrated design is achieved, coarse grinding and fine grinding can be carried out at the same time, the structure is simple, the grinding process is simple and convenient, the grinding efficiency is high, and creativity is high; and therefore the problems and defects existing in existing devices are effectively solved.

The invention belongs to the field of grinding wheels and manufacturing method thereof and particularly relates to a corrugated roller grinding wheel and a manufacturing method thereof. The grinding wheel is characterized in that raw material component and weight percentage of grinding parts are that 68-80% of grinding materials with granularity of 36 [mu]m-120 [mu]m; 8-15% of ceramic bond; and 10-15% of pore-forming materials. The manufacturing method comprises following steps of 1) mixing materials; 2) forming; 3) drying; 4) kiln placing; 5) sintering; and 6) blank drying and size processing. The grinding wheel is advantageous in that the grinding wheel is high in rotation strength, rigidity, structure uniformity, static balance performance, heat radiation performance, grinding performance, grinding efficiency and grinding precision.

The invention belongs to a punch die and particularly relates to a floating side hole punch die. The floating side hole punch die comprises an upper die base, a lower die base, a first elastomer and a guide post, wherein the lower surface of the upper die base is connected with the first elastomer; the first elastomer is positioned in the guide post; the lower end of the guide post is arranged in the lower die base; a male die is fixed to the lower end of the upper die base; a workpiece groove is formed in the male die; the upper end of a workpiece is arranged in the workpiece groove; the workpiece can move up and down with an upper die and punch work is finished; the lower end of the workpiece is positioned in a gap between a female die and a discharging plate; the lower surface of the female die is arranged on the lower die base; the discharging plate is fixed to the upper surface of the female die, so that the machined position is convenient to position. The bottom of a shell part is relatively slightly punched, so that the machining efficiency is high, and the floating side hole punch die is safe and convenient to use.

The invention discloses a fall-off portable holding rod, which is characterized by comprising a holding rod body consisting of two long rods, jackets arranged on the tops of the long rods, fall-off top sleeves sleeved outside the jackets, and a connecting ring which is connected with the top sleeves and used for a pulling rope to pass through, wherein a foot pad is arranged at the bottom of each long rod and connected with each long rod through a buckle ring. The fall-off portable holding rod has the advantages that: human resources are greatly saved, and time and waste in the transportation process and in the electric pole assembling process are reduced; safety, reliability and flexibility in the electric pole assembling process are enhanced; and the labor load of personnel is reduced, and actual work efficiency is improved.

The invention discloses an automatic material collecting device for a film cutting machine, and belongs to the technical field of film cutting machines. The automatic material collecting device can automatically discharge materials through a transmission crawler belt, a plurality of uniformly distributed transfer balls are attracted from the lower side by virtue of the magnetic attraction effect of magnetic control bags, the magnetic attraction force of the magnetic control bags is automatically lost after the transmission crawler belt rotates to the upper side, the transfer balls are in contact with a thin film and then are adhered to the thin film, the thin film normally slides down when reaching an inclined collecting box, the transmission crawler belt always attracts the transfer balls in a reciprocating manner and then enables the transfer balls to be adhered to the thin film, the thin film can realize automatic collecting under the action of gravity, and meanwhile, due to the existence of the transfer balls, frictional resistance of the thin film during sliding down can be greatly reduced, and possibly appearing wear between thin films can be reduced. Compared with the prior art, the device has the advantages that the thin films can be automatically collected, arranged and stacked by means of the transfer balls, the collecting efficiency is greatly improved, and the device is suitable for large-scale production of products.

The invention provides a fruit retention method of Fortunella Crassifolia Swingle, and specifically relates to the technical field of agricultural plant protection. The fruit retention method can enhance the fruit retention effects of Fortunella Crassifolia Swingle, uniformly standardizes the time, frequency and means of flower thinning of the Fortunella Crassifolia Swingle and stipulates the flower thinning time and petal dropping rate of each blooming. The flower thinning using external force to shake branches can be manually carried out or can be carried out through the remote operation ofa plant protection unmanned aerial vehicle; and the plant protection unmanned aerial vehicle is optimally selected to carry out flower thinning operation, which is more time- and labor-saving than manual force applying, so that labor resources and labor costs can be saved to a great extent. Through the fruit retention method, the petal dropping rate of Fortunella Crassifolia Swingle trees can reach more than 80%, fruit setting rate can be stabilized at more than 65%, and special grade fruit rate can reach up to more than 63%; and especially through the adopting of the plant protection unmannedaerial vehicle to perform flower thinning, petal shedding rate can reach more than 88%, and both the fruit setting rate and the special grade fruit rate can reach more than 80%.

The invention discloses a multifunctional security equipment device for intelligent property management, and relates to the technical field of security equipment. The multifunctional security and protection equipment device for the intelligent property management comprises an equipment shell; a battery bin is fixedly connected to the right end of the lower surface of the equipment shell, a mounting bottom plate is fixedly connected to the lower surface of the battery bin, and a power line is fixedly connected to the right side face of the battery bin; and a shooting port penetrates through the left side surface of the equipment shell. side covers are fixedly connected to the front and rear ends of the inner wall of the shooting port; an air inlet penetrates through the left side surface of the side cover; a port is formed in the right side face of the equipment shell, and a dustproof net is fixedly connected to the inner wall of the port; a camera device is arranged in the device shell; a fan blade is arranged at the right end of the camera equipment; the left end of the upper surface of the equipment shell is provided with a rolling shaft, and the right side of the rolling shaft is provided with a transverse plate. According to the technical scheme, the problem that illegal persons investigate camera shielding in advance to cause potential safety hazards is avoided.

The invention belongs to the technical field of engineering surveying and mapping, and particularly relates to a precise and durable handheld measuring device for engineering surveying and mapping and a surveying and mapping method of the precise and durable handheld measuring device. And the outer walls of one sides of the two sliding openings are each fixedly connected with two first telescopic air cylinders, and the outer walls of one sides of the two first telescopic air cylinders located on one side are fixedly connected with the same sliding block. Through the arrangement of the dust suction cover, the dust suction hole, the dust suction pump, the telescopic hose and the dust collection box, when the measuring instrument is collected into the protection frame, a second telescopic rod is adjusted to enable the dust suction cover to move to an observation opening of the measuring instrument, then the dust suction pump is started, and dust around the observation opening is adsorbed through the dust suction hole in the dust suction cover on the telescopic hose; and then the dust is uniformly discharged into the dust collection box, so that dust at an observation opening of the placed measuring instrument can be effectively isolated, and the situation that the dust corrodes the measuring instrument, and the service life of the device is affected is prevented.

The invention provides a full-automatic potato grader, and relates to the field of agricultural instruments. The full-automatic potato grader comprises a lifting device, a conveying device, an air-drying device, a cleaning device, a grading device and a weighing device, wherein the lifting device is connected with one end of the conveying device; the grading device is connected with the other endof the conveying device for grading potatoes; the cleaning device is arranged at the bottom of the conveying device for cleaning the potatoes on the conveying device; the air-drying device is arrangedon the top of the conveying device for drying the potatoes on the conveying device; and the weighing device is arranged at the outlet end of the grading device for receiving the potatoes. Compared with the prior art, according to the full-automatic potato grader, soil on the potato surfaces can be air-dried by the air-drying device, and then the soil on the potato surfaces can fall off smoothly by the cleaning device, so that the influence of the soil on the subsequent grading process is avoided, and the grading effect is improved.

The invention discloses a patting sweeping device for a belt of a cigarette manufacturing machine. The patting sweeping device comprises a rotating spindle, a decelerating motor and two patting rollers. The rotating spindle is in transmission connection with the decelerating motor and arranged on the upper portion of the belt of the cigarette manufacturing machine through a rack; the two patting rollers are symmetrically arranged on the two axial sides of the rotating spindle through mounting supports connected with the rotating spindle; and the axial direction of the patting rollers is parallel to the axial direction of the rotating spindle. The structure is simple and novel, and the patting rollers pat the belt continuously and circularly so as to enable viscous matter to fall off successfully. After using, it is proved that the patting sweeping device has the obvious removing effect.