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52results about How to "Keep going" patented technology

Halo orbit on-orbit keeping method considering amplitude constraint

The invention provides a Halo orbit on-orbit keeping method considering amplitude constraint, and belongs to the aerospace technology field. The method comprises the steps that by establishing a kinetic equation under a limited three-body model composed of two main celestial bodies and a detector, the position of a balance point of a three-body system composed of the two celestial bodies and the detector is determined; a Halo orbit, near the balance point, in the three-body system composed of the big and small celestial bodies and the detector is determined; a differential correction algorithm for Halo orbit keeping is designed according to the disturbance variable; a Halo orbit on-orbit keeping strategy is designed according to the differential correction algorithm; in a real ephemeris environment, measurement errors and execution errors are considered, the speed increment of each time of orbit correction is obtained according to the orbit keeping strategy through the differential correction algorithm, orbit correction control is conducted according to the speed increments. Accordingly, Halo orbit on-orbit keeping considering amplitude constraint can be achieved, and consumption of fuel needed in orbit keeping can be reduced as much as possible.
Owner:BEIJING INSTITUTE OF TECHNOLOGYGY

Floatable track type special underwater operation robot suitable for extremely soft geology

The invention relates to a floatable track type special underwater operation robot suitable for extremely soft geology. The floatable track type special underwater operation robot suitable for extremely soft geology comprises a running mechanism; the running mechanism is a track and mud sled composite structure; mud sled board structures are fixedly arranged on the track; the bottoms of the mud sled board structures are higher than the bottom of the track and have arch-shaped board heads; board water jet devices are arranged on the arch-shaped board heads; the board water jet devices jet waterforwards; in the running process of the running mechanism, the arch-shaped board heads press water downwards; the pressed water and jet water mutually form water films at the bottoms of the mud sledboard structures to reduce the running resistance; and therefore, the floatable track type special underwater operation robot suitable for extremely soft geology can stably run in the extremely soft geology. According to the floatable track type special underwater operation robot suitable for extremely soft geology, as parts such as a propelling mechanism, a buoyancy adjusting device, an operationmodule are also designed, the underwater robot can automatically run on the sea bed and has multiple functions such as water floating, fault self-repairing and fine operation.
Owner:SHANGHAI JIAO TONG UNIV

Manufacturing method of acrylic fiber and bamboo fiber blended water-repellent shell fabric

The invention discloses a manufacturing method of an acrylic fiber and bamboo fiber blended water-repellent shell fabric. The selected warp and weft materials comprise the following components in parts by mass: 40-90 parts of acrylic fibers, 20-45 parts of natural fibers, 6-12 parts of synthetic fibers, 8-15 parts of bamboo fibers, 60-95 parts of cotton fibers and 8-18 parts of super fine denier polyesters. According to the manufacturing method, water repellent finish is carried out between sizing operation and air injection by the following steps: padding a shell fabric in a water repellent finish liquid; taking out the shell fabric; and then carrying out electron radiation and drying treatment, wherein the water repellent finish liquid comprises 2-8% by mass of a water repellent; the drying treatment comprises first drying treatment and second drying treatment. According tothe manufacturing method of the acrylic fiber and bamboo fiber blended water-repellent shell fabric designed by the invention, the cohesive force between the fibers of the acrylic fiber and bamboo fiber blended water-repellent shell fabric can be enhanced, and the acrylic fiber and bamboo fiber blended water-repellent shell fabric has a good water-repellent antibacterial performance while having the advantages of high elasticity, high strength and heat and light resistance, and the washability and the softness of textile are improved.
Owner:SUZHOU CHENHENG WEAVING

Full hydraulic rock core drilling machine unit head

A power head for all-hydraulic operated drill is driven by double hydraulic motor and adopts the mode of power input, double-geared drive, hydraulic stepless speed regulation, hydraulic chuck clamping and long-travel feeding. A middle and lower labyrinth seals and a skeleton oil seal form a three-layer sealing device of a main shaft of the drill power head. The drill is lubricated by using mixed lubricating grease and thin oil. The middle part realizes labyrinth sealing by matching a supporting sleeve and a rotary plate, so as to provide a lower end bearing sufficient accumulated grease and heat dissipation space, guarantee the reliable lubrication and heat dissipation of the bearing, and increase secondary oil splashing and splash lubrication effect. The lower part realizes labyrinth sealing by matching an oil removal driving disk and an end cover, so as to effectively preserve and retain lubricating grease in the lower bearing box. The main shaft operates at high speed to cause temperature rising, and when the lubricating grease is diluted, its loss can be effectively prevented. The lower skeleton is oil sealed to prevent backflow and splashing of the drilling fluid, and further prevent the outer discharge of the lubricating grease when being diluted to take secondary protection effect.
Owner:H H DRILL TECH DRILLING MACHINERY CO LTD

Device and method for regulating and controlling ecological water requirement in dry seasons of riverway bankside zone under dam

ActiveCN103741642ASatisfy the guarantee rate of ecological water demandWill not affect normal service functionClimate change adaptationHydraulic engineering apparatusDry seasonWater volume
The invention discloses a device and a method for regulating and controlling ecological water requirement in dry seasons of a riverway bankside zone under a dam. The device comprises an architecture device, a height adjustment device, a charge / discharge device, a pendulous device and a central control device. The invention also provides a method for regulating and controlling the ecological water requirement in dry seasons of the riverway bankside zone under the dam by using the device. The device is capable of running independently or running according to dispatching in combination with an upstream reservoir; the device does not increase, and even reduces the discharged volume under the dam in the dry seasons while meeting the basic requirements such as normal floodwater draw-off, shipping and upstream reservoir water supply, and therefore, effective regulation and control on the ecological water requirement of the bankside zone near the device can be realized; the water level of the riverway bankside zone under the dam can be remarkably banked up, and also the water level pulse amplitude of different areas can be flexibly controlled; and therefore, the assurance rate of the ecological water requirement in the dry seasons of the riverway bankside zone under the dam is achieved, and the uneven seasonal distribution problem of the water volume and the contradiction between the water conservancy project construction and the downstream ecological water requirement are solved.
Owner:HOHAI UNIV +1

Production method of copper ammonia/viscose/linen cotton fiber blended fabric

The invention discloses a production method of a copper ammonia/viscose/linen cotton fiber blended fabric. According to the production method, selected warp and weft materials are as follows in parts by mass: 30-50 parts of copper ammonia fibers, 15-25 parts of linen fibers, 40-90 parts of viscose fibers, 20-40 parts of combed cotton and 8-18 parts of ultrafine fine denier polyester. A step of slashing in the production process comprises the specific steps: (1) mixing size: adding water into a size mixing bucket and raising the temperature of the water to 50 DEG C, adding a pre-dyeing agent, wherein the adding mass of the pre-dyeing agent is 15-18% of that of water, starting a stirrer and adding solid PVA (Polyvinyl Acetate) at the mass ratio of the solid PVA to the water of (1-4) to 80, raising the temperature to 90 DEG C, and stirring and dissolving to prepare slurry; and (2) sizing: sizing by adopting a slashing machine, wherein size in a size tank does not need to be heated. The yarns of the sizing procedure are subjected to sizing by adopting the PVA with the concentration which is not higher than 4%; the sizing rate is low, size skins are not easy to form by a sizing agent and desizing is easy to carry out by post-finishing; and meanwhile, the sizing agent can be stored after being prepared and can be used at any time in future, and does not need to be prepared when being needed, so that the energy and time are saved.
Owner:SUZHOU CHENHENG WEAVING

Preparation method for acrylic fibers/regeneration, silkworm bamboo fiber blended washable fabrics

InactiveCN104695108AImprove washing strengthImprove the problem of not being washableBiochemical fibre treatmentLiquid/gas/vapor removalPolyesterPolymer science
The invention discloses a preparation method for acrylic fibers/regeneration, silkworm bamboo fiber blended washable fabrics. The selected warp and weft material comprises, by weight, 40-90 parts of acrylic fiber, 20-45 parts of natural fiber, 6-12 parts of synthetic fiber, 60-95 parts of cotton fiber, 8-18 parts of super fine denier polyester, 50-90 parts of regenerated bamboo fiber, 11-20 parts of mulberry fiber, 1-8 parts of corn protein fiber, 5-8 parts of fine staple cotton fiber and 5-10 parts of villus fiber, wherein washable treatment and water-repellency treatment are sequentially between the slashing operation and air injection operation. The washable treatment is: dipping the fabrics in the composite rare earth finishing agent for 45-60 minutes and finishing the dipped fabrics with complex enzyme after drying. Through the reasonable proportion of the composite rare earth finishing agent, the preparation method for the acrylic fibers/regeneration , silkworm bamboo fiber blended washable fabrics can improve the washing strength of the regenerated bamboo fiber, solves the problem that the regenerated bamboo fiber blended fabrics is not washable, and improves the wear-resisting property of the bamboo fiber blended fabrics.
Owner:SUZHOU CHENHENG WEAVING

Automatic stamping machine

Disclosed is an automatic stamping machine. The automatic stamping machine comprises a machine frame, a stamp rotating shaft, a rolling rotating shaft, a driving mechanism, an automatic ink adding mechanism, a stamp ink box and a locating locking device. The stamp rotating shaft and the rolling rotating shaft are arranged on the machine frame in parallel in a rotating mode, and the stamp rotating shaft is located below the rolling rotating shaft. At least one rolling stamp is arranged on the stamp rotating shaft, and a rolling printing roller which corresponds to the rolling stamp in position is arranged on the rolling rotating shaft. The driving mechanism is installed on the machine frame and drives the stamp rotating shaft and the rolling rotating shaft to synchronously rotate in the opposite directions. The automatic ink adding mechanism automatically adds ink to the stamp ink box. First rolling wheel printing cotton which makes flexible contact with the rolling stamp is arranged in the stamp ink box. The machine frame and a printer are located and locked through the locating locking device. According to the automatic stamping machine, the relative position between the automatic stamping machine and the printer is accurately guaranteed through the innovative locating locking device, the probability of paper jams is reduced, and the stability and the reliability are improved. The first rolling wheel printing cotton makes flexible contact with the rolling stamp, and the service life is long. The automatic ink adding mechanism can achieve automatic and continuous ink addition.
Owner:GUOGUANG ELECTRONICS INFORMATION TECH

Controllable three-dimensional planting and breeding circulation machine

The invention discloses a controllable three-dimensional planting and breeding circulation machine. The controllable three-dimensional planting and breeding circulation machine comprises the components of a disc body, an upper protective cover, a first breeding area, a rotatable water culture field planting device and a chassis, wherein the disc body is arranged at the upper part and used for arranging a water culture planting area, an electric control area, a quantitative feeding area and a fish taking observation area; the first breeding area and the rotatable water culture field planting device are arranged in the middle; the chassis is arranged at the lower part; a second breeding area, a dechlorination device for filtering tap water and a water suction pump body are arranged in the chassis; and the water culture field planting device comprises a plurality of field planting cylinders which are spliced with one another, a plurality of layers of annular water flowing grooves which communicate with one another, and a motor assembly for rotating the field planting cylinders. Space is fully utilized on the same occupied area, an upper vertical ecological system, a middle vertical ecological system and a lower vertical ecological system are formed through controllable design of physical conditions and microecology, the purpose of circular exchange of substances is achieved through water circulation design, and a water body has the self-purification capacity in the circulation machine, and the high-density planting and breeding requirements can be met.
Owner:黄炳南

A device, system and method for exterminating rodents in a planar current field

The present disclosure provides a device, system and method for exterminating rodents in a planar current field, including a first control terminal, a spray tube, an electrode plate and a pyroelectric infrared sensing element; the spray tube is provided with a plurality of The through hole, the spray pipe is communicated with the liquid reservoir through the pipeline, the liquid reservoir is communicated with the gas storage bottle through the solenoid valve, the first control terminal is connected with the solenoid valve, and the pyroelectric infrared sensing element is connected with the first control terminal; the first control terminal is connected with the first control terminal. The control terminal is connected to the electrode plate through the power supply module, the electrode plate includes a positive electrode plate and a negative electrode plate, and the spray range of the spray pipe covers at least the area between the positive electrode plate and the negative electrode plate, and between the positive electrode plate and the negative electrode plate. A planar electric field for shocking mice is formed in the area of ​​​​the present disclosure; the water film formed after spraying water on the ground of the present disclosure is no different from the natural environment, with strong concealment, and the mice cannot be identified, which improves the rat trapping efficiency; in addition, the rodent control system of the present disclosure The device is placed in a flexible place, and can automatically remove mouse carcasses, realizing continuous mouse capture.
Owner:山东师范大学附属中学

Preparation of polypropylene fiber fabric, and liquid all-in-one printing and dyeing pretreatment technology

The invention discloses preparation of polypropylene fiber fabric, and a liquid all-in-one printing and dyeing pretreatment technology. The polypropylene fiber fabric is prepared from the following warp and weft materials in parts by weight: 40-90 parts of polypropylene fiber, 20-40 parts of combed cotton and 8-18 parts of superfine denier polyester; in the slashing working procedure, a liquid all-in-one auxiliary agent is fed into slurry, and the pH value of the liquid all-in-one auxiliary agent for dyeing is 2g/L: 8.5+/-1; the auxiliary agent comprises the following components in parts by weight: 0.5-1.5 parts of sodium hydroxide, 0.2-0.5 part of a chelating agent and 0.2-1 part of sodium hexametaphosphate, wherein the ratio of the total mass of the sodium hydroxide, the chelating agent and the sodium hexametaphosphate to the mass of water is equal to 2:50; after the slashing technology is finished, heat preservation is carried out for 50-80 minutes according to the concentration of the material to be dyed of the fabric. After the preparation of the polypropylene fiber fabric is adopted, the fabric has the advantages of high elasticity, high strength, heat insulation, heat resistance and light resistance; furthermore, the dye liquor can rapidly permeate and diffuse into the fiber of the fabric in the subsequent dye liquor, so that the phenomena such as dye lot chromatism, dyeing defect, chromatic aberration and solid color spots can be effectively prevented in the printing and dyeing process.
Owner:SUZHOU CHENHENG WEAVING

An automatic stamping machine

Disclosed is an automatic stamping machine. The automatic stamping machine comprises a machine frame, a stamp rotating shaft, a rolling rotating shaft, a driving mechanism, an automatic ink adding mechanism, a stamp ink box and a locating locking device. The stamp rotating shaft and the rolling rotating shaft are arranged on the machine frame in parallel in a rotating mode, and the stamp rotating shaft is located below the rolling rotating shaft. At least one rolling stamp is arranged on the stamp rotating shaft, and a rolling printing roller which corresponds to the rolling stamp in position is arranged on the rolling rotating shaft. The driving mechanism is installed on the machine frame and drives the stamp rotating shaft and the rolling rotating shaft to synchronously rotate in the opposite directions. The automatic ink adding mechanism automatically adds ink to the stamp ink box. First rolling wheel printing cotton which makes flexible contact with the rolling stamp is arranged in the stamp ink box. The machine frame and a printer are located and locked through the locating locking device. According to the automatic stamping machine, the relative position between the automatic stamping machine and the printer is accurately guaranteed through the innovative locating locking device, the probability of paper jams is reduced, and the stability and the reliability are improved. The first rolling wheel printing cotton makes flexible contact with the rolling stamp, and the service life is long. The automatic ink adding mechanism can achieve automatic and continuous ink addition.
Owner:GUOGUANG ELECTRONICS INFORMATION TECH

High-temperature-resistant PVC conveying belt for food processing production line

PendingCN114408454AImprove stress resistanceImprove the temperature resistance coefficientConveyorsSynthetic resin layered productsFiberCarbon fibers
The invention discloses a high-temperature-resistant PVC conveying belt for a food processing production line, and relates to the technical field of food processing. The high-temperature-resistant PVC conveying belt for the food processing production line comprises a mounting bracket and a conveying belt body, a driving motor is mounted on the surface of the top end of the mounting bracket, a driving shaft is mounted on the surface of the outer side of the output end of the driving motor, and a driving roller shaft is mounted on the surface of the tail end of the driving shaft; and a driven roller shaft is mounted on the top end surface of the mounting bracket on one side of the driving motor, and a conveying belt body is jointly mounted on the outer side surfaces of the driving roller shaft and the driven roller shaft. The PVC base layer serves as a base structure of the conveying belt body, the compression resistance of the conveying belt body is enhanced through the carbon fiber supporting rods, so that the conveying belt body can transport objects with larger weight, and the overall temperature resistance coefficient of the conveying belt body is increased through the temperature resistance layer; and the antibacterial layer is added, so that the conveying belt body is more suitable for a food processing production line, and the safety coefficient is higher.
Owner:无锡铭成传动科技有限公司
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