126results about How to "Overcoming wear and tear" patented technology

The invention discloses an oil return control device, an air conditioning system and an oil return control method of the air conditioning system. The oil return control device comprises an oil separation mechanism and an oil return control assembly, wherein the oil separation mechanism is arranged at an exhaust port of a lower row of exhaust cylinders in a compressor comprising two or more parallel cylinders, and is used for separating and obtaining lubricating oil from exhaust gas of the lower row of exhaust cylinders, and the oil return control assembly is arranged between the oil separationmechanism and an oil pool at the bottom of the compressor, and is used for controlling the lubricating oil to return to the oil pool according to the pressure difference between exhaust ports of thetwo or more exhaust cylinders in the compressor. According to the scheme, the defects that in the prior art, a lower cylinder is prone to wear, short in service life, low in running reliability and the like can be overcome, so that the beneficial effects that the lower cylinder is not prone to wear, long in service life and high in running reliability are achieved.

The invention is a pillow which intelligently recognizes the lying position and intelligently adjusts the height, and belongs to the application of automatic control in necessities of human life. According to the control mechanism of checking every change, adjusting with the posture, changing with the person, the position changes unchanged, the posture changes must be changed, and the timing standby control mechanism, through 6 sets of independent circuits and air circuits, the neck and head airbags of the four lying positions can be adjusted. The combination of pressure and height data is used as the basis for judging the prone position. Through the dialogue between the mobile phone and the pillow, the "learning" data of various postures, neck and head airbag pressures are stored. Using a pillow or rolling, translation, and vacant transformation, according to the control mechanism and algorithm, compare the real-time force data in the airbag with the stored "learning" data, and adjust the neck and head to the corresponding position through circuit and air circuit control The comfort height of the posture. Under the control of the circuit air circuit, the tiled multiple airbags are responsible for the collection and precise lifting of the pressure on the neck and head. The tiled high and low equipment cabins put all the equipment in, realizing "full integration", avoiding dragging and hanging, and making it easy to move and carry.

The invention discloses a method for recognizing a human walking gait cycle with an electromyographic signal and relates to a method for measuring human limbs movements. The method for recognizing the human walking gait cycle with the electromyographic signal is characterized in that a utilized device comprises a singlechip, an electromyographic signal sensor and a three-point differential input electrocardio electrode based on a segmentation integral algorithm, wherein the electromyographic signal sensor records and processes the electromyographic signal collected by the electromyographic signal sensor to obtain a positive level unstable signal, then the singlechip transfers, moves and calculates an average filter by utilizing a peak-valley segmentation integral algorithm or a simplified algorithm of a peak-valley linear interpolation segmentation integral algorithm to obtain a human walking gait cycle, therefore, the method solves the problems of easy abrasion of a signal sensor of a human movement signal and zero drift of the electromyographic signal sensor and also overcomes the defects that the traditional gait cycle recognizing method is complex and has high equipment price and larger calculation amount. The method for recognizing the human walking gait cycle with the electromyographic signal only needs a single channel signal as an information source and improves the application universality because a plurality of muscles of a person can be selected.

The invention provides a supercritical water oxidation treatment system and a supercritical water oxidation treatment system process for high-concentration dyeing sludge. After the high-concentration dyeing sludge is ground, the particle sizes of insoluble particles are reduced, and high-flow-speed suspension conveying can be realized; the sludge is further subjected to pyrohydrolysis, cell walls are broken and the viscosity is remarkably reduced; the sludge can be stably conveyed through a high-pressure diaphragm pump and enters into a heat exchanger for preheating, so that the required temperature is reached; subsequently, the sludge and oxygen jointly enter into an inlet in the upper part of a reactor, materials completely react in the up-down flowing process, organic matters are degraded and inorganic salts are separated out; the inorganic salts are secondarily dissolved by the cooling of a small amount of reacted clean fluid introduced from an inlet in the upper part of a third heat exchanger and sludge at the inner pipe side of a fourth heat exchanger; materials flow out of a cone base at the lower part of the reactor for heating soften water to generate steam and preheating the materials; cooled and reacted fluid is decompressed through coarse adjustment of a capillary step-down transformer and fine conditions of flow; decompressed fluid is separated through a pipeline filter to obtain a solid which is finally collected into a liquid collecting tank.

The invention belongs to the technical field of micro-nanometer manufacturing and relates to a method for manufacturing the surface with resistance reduction. Micron level structure arrays in alternate arrangement are designed and manufactured on the surface of a silicon substrate, a silicon dioxide substrate, an engineering plastic substrate or a metal substrate; an ultraviolet stamping photoetching technology is used as a transferring means; a template can be repeatedly used; a fluorination process is used as a surface treatment means to obtain a microstructure substrate with the function of resistance reduction; and the microstructure surface of the substrate has quite low surface energy. The method can be used for the surface of a device for a micro-electromechanical system, and can reduce the surface friction and abrasion as well as the invalidation of adhesion under a microscale; the method can be used for the surface of a conveying pipeline and a microflow device, can reduce the on-way pressure loss of a fluid in a micro-passage and the flow resistance of the fluid, and can increase flow speed; and the method can be used in aviation, spaceflight, navigation, traffic transportation and other fields, and can reduce energy consumption and consequently save energy.

The invention discloses a high-pressure water drilling and cutting integrated machine comprising a propeller, wherein the propeller is provided with a high-pressure drill rod; the front end of the high-pressure drill rod is provided with a mining drilling and cutting integrated drill bit; a water inlet of the propeller is connected with a high-pressure rubber hose through a rotary water faucet; the other end of the high-pressure rubber hose is connected with a water pump; the water pump is respectively connected with a water tank and an explosion-proof switch; the propeller is also connected with a propeller controller and is controlled by the propeller controller; the propeller is also connected with a propeller motor; the mining drilling and cutting integrated drill bit can be used for realizing the automatic switching of cutting and drilling working states according to the condition that the water filled into an inner cavity is high-pressure water or low-pressure water. The high-pressure water drilling and cutting integrated machine is capable of realizing the drilling and cutting integration, simple and reliable in drilling and cutting switching operation, free of adding grinding materials, and capable of realizing pure water cutting.

The invention discloses an active electromagnetic bearing impeller pump. The active electromagnetic bearing impeller pump is mainly composed of a radial direction electromagnetic bearing rotor, a stator, a thrust bearing, a sensor and a bracket thereof, an impeller and a pump shell. The bearing seat and the impeller are made as an integrated body, the impeller (rotor) of the pump is embedded with the soft magnetic material (magnetic steel and the like) with good permeability, the pump shell (stator) is provided with a coil, which is connected with the electric current for generating the rotating magnetic field, driving the impeller for rotating and realizing the action of the pump. Another magnetic bearing (in radial direction and axial direction) is used for rotating and locating the main shaft and stopping the displacement in radial direction and axial direction. The rotor is soaked in the medium for rotating; the surface contacting the fluid is covered by the corrosion-resistant material, so that the pump has no sealing element of any type inside. The active electromagnetic bearing impeller pump is simple in function, the defect of the common impeller pump, which is easily worn and required to be sealed can be greatly overcome and the active electromagnetic bearing impeller pump has good application prospect.

The invention relates to a sealing lubrication structure for a plunger of an ultrahigh pressure plunger pump. The sealing lubrication structure mainly comprises a plunger, a cylinder, a pressure transfer oil cylinder and a free piston arranged in the pressure transfer oil cylinder. The free piston divides the pressure transfer oil cylinder into a pressure transfer cavity and a lubricating oil cavity. The sealing lubrication structure is characterized in that: an annular sealing oil groove formed on a working cylinder hole separates a plunger annular microgap between the plunger and the working cylinder hole into upper and lower plunger annular microgaps; when the plunger ascends to pump oil, the pressure of ultrahigh pressure fuel oil in a pump cavity is transferred to the annular oil groove through an oil duct, the pressure transfer cavity, the free piston, the lubricating oil cavity and a three-way oil duct, so that the pressure of the pump cavity is equal to that of the annular sealing oil groove; and a small amount of lubricating oil leaks from the annular sealing oil groove through the lower plunger annular microgap, and under the action of the pressure of the fuel oil in the pump cavity, the free piston descends to supplement the leaked lubricating oil to keep the pressure of the lubricating oil in the annular sealing oil groove at the lower end of the annular microgap equal to that of the fuel oil in the pump cavity at the upper end so as to effectively prevent the fuel oil from leaking through the annular microgap and overcome the wear between the plunger and the working cylinder hole.

The invention discloses a storage tank type classified sorting system with a dust removal function. The system comprises a storage tank type classified sorting device and a warm induced air device. The storage tank type classified sorting device comprises a tank body, an inverted-funnel-shaped cyclone portion and four partition plates. The inverted-funnel-shaped cyclone portion is arranged on the upper portion of the tank body. The outer side wall of the inverted-funnel-shaped cyclone portion and upper space of the tank body form an airtight heat exchange cooling chamber. The heat exchange cooling chamber is provided with a cold air inlet and a hot air outlet. The inner side wall of the inverted-funnel-shaped cyclone portion and the middle space of the tank body form a cyclone classified sorting chamber. The cyclone classified sorting chamber is provided with an air inlet and an air outlet. The partition plates are arranged on the lower portion of the tank body to divide a bottom cavity of the tank body into four fan-shaped cavities. The arm induced air device is used for forming continuous circulation airflow having a negative pressure sucking effect. The design is scientific and reasonable, classified screening and dust removal are carried out during material storage, the production procedures are simplified, and the production efficiency and quality of expanded perlite are improved.

The invention discloses a production process of acrylic fiber/biological fiber yarn-dyed flocked blended fabric. Wefts and warps are made from, by weight, 35 to 60 parts of pupa protein fiber, 16 to 45 parts of Lyocell bamboo fiber, 40 to 90 parts of acrylic fiber, 30 to 60 parts of other biological fibers, 20 to 45 parts of natural fiber, 8 to 15 parts of bamboo fiber, 60 to 95 parts of cotton fiber and 8 to 18 parts of superfine-denier polyester; the other biological fibers include one of or a combination of any of modal fiber, bamdal fiber, corn fiber, chitosan fiber, Shengma fiber, rose fiber and milk fiber. A tentering and setting step adopts the speed of 25 to 50m/min and 1 to 3% of overfeeding. A raising and shearing step adopts controlled raising tension 4.5 to 5 kg, raising speed 12 to 15m/min, shearing tension 4 to 5 kg, speed 9 to 11m/min, and a distance from a cutting edge to the fabric being 0.36 to 0.81 mm. An air washing step adopts control temperature 115 to 125 DEG C, and 3 to 5g/L of 98% softener containing silicone oil is added.

The invention discloses a whirlwind reverse blowing type self-cleaning air filter device. The whirlwind reverse blowing type self-cleaning air filter device comprises a shell, a whirlwind air exhaust device, a filter element fastening support, a dry-type filter element assembly, an air pipe and an air inlet, wherein the shell is arranged horizontally, the whirlwind air exhaust device is horizontally arranged at the center position in the shell, the filter element fastening support and the dry-type filter element assembly are located in the shell and arranged around the whirlwind air exhaust device in a matched mode from inside to outside, the air pipe is arranged at one end of the shell and is communicated with the whirlwind air exhaust device, and the air inlet is formed in the top of the shell. The air pipe can be connected with an air intake pipe of an engine. The whirlwind reverse blowing type self-cleaning air filter device can overcome the defects that in the prior art, oil consumption is high, the engine is prone to abrasion and the engine is short in service life, thereby achieving the advantages that oil consumption is low, the engine is not prone to abrasion and the engine is long in service life.

The invention relates to a telescopic mechanism of a pinion-and-rack container spreader. The telescopic mechanism comprises a main beam, a front middle beam, a rear middle beam, a front end beam and a rear end beam, wherein the front middle beam is arranged at the front end of the main beam, the rear end of the front middle beam is connected with the main beam by plugging and in telescopic fit with the front end of the main beam, the front end beam is arranged at the front end of the front middle beam and in telescopic fit with the front middle beam; the rear middle beam is arranged at the rear end of the main beam, and the front end of the rear middle beam is connected with the mean beam by plugging and in telescopic fit with the rear end of the main beam; the rear end beam is arranged at the rear end of the rear middle beam and in telescopic fit with the rear middle beam; and the maim beam is provided with a motor and a motor reducer, and a gear and rack drive mechanism is arranged between the motor reducer and the end beam. The gear and rack drive mechanism is reasonable in design, and convenient to maintain. The defects such as oil leak, high failure rate, complex and difficult maintenance and the like of hydraulic telescopic container spreaders are overcome.

The invention discloses a forced lubricating system of a single cylinder diesel. The forced lubricating system comprises an oil sump and an oil pump, wherein the oil sump is used for storing oil and cooling, the oil pump is arranged in a gear chamber cover, the oil sump is internally provided with an oil strainer, the oil is sucked by the oil pump through the oil strainer, an outlet of the oil pump is connected with an oil filter, the oil which is filtered by the oil filter can be respectively and forcedly delivered to an oil spray pump assembly, an air cylinder cover assembly and an engine body assembly after entering into an oil duct in an engine body, and oil return ports of the oil spray pump assembly, the air cylinder cover assembly and the engine body assembly are all communicated with the oil sump. According to the forced lubricating system disclosed by the invention, clear, full and forced circulating lubrication of the oil in the diesel is realized through the action of the oil pump and the oil filter, the phenomena of untimely abrasion, bearing bush hugging, cylinder scuffing and the like, which are caused by existing splash lubrication, of each moving piece of the diesel are overcome, the lubrication oil loss of a transmission gear set is avoided, the gear mesh noise and the oil temperature are reduced, the abrasion resistance of each moving piece is increased, and the service life of each moving piece is prolonged.

The invention discloses a drilling measuring system and method for detecting the height of a water flowing fracture zone through the water pressure. According to the drilling measuring system and method, a drill bit body is drilled into a down-hole roadway through a drilling measuring mechanism to conduct drilling till a hole exceeds the highest position where the water flowing fracture zone is located, after drilling is completed, a drill is withdrawn, in the drill withdrawing process, the height of the water flowing fracture zone is detected, measuring is conducted every time a water injection drill rod is withdrawn by the unit length, according to the change of water level elevation values obtained by a drilling measuring drill bit at different measuring point positions in the hole, therange of the water flowing fracture zone is judged, and the water flowing fracture zone is a zone with the water level elevation values changing along with the depth of the measuring point positionsin the hole. Drill withdrawing and detection are conducted synchronously, the labor amount is reduced, the labor intensity of a worker is lowered, and the detecting efficiency is improved; and the drilling measuring system and method are suitable for detection of the fracture development law of overburden strata with the medium hardness or above, and the good detection effect can still be achievedunder the condition that weak overburden strata or faults are more prone to hole collapse compared with developing zones and the like.

The invention discloses a gap sensor calibration system of a magnetic-levitation train, comprising a base (1), a sensor clamp (2), a vertical driving unit (3), a control mechanism and a track (8), wherein the sensor clamp (2) is used for installing a gap sensor to be calibrated; the track (8) is arranged on the base (1); the sensor clamp (2) is fixed on the vertical driving unit (3); the track (8) is arranged just above the sensor clamp (2); the base (1) is provided with a horizontal driving unit (4); the vertical driving unit (3) is fixed on the horizontal driving unit (4) and is driven to move along a horizontal direction by the horizontal driving unit (4); the track (8) is provided with more than one seam (83); and the control mechanism is respectively connected with the vertical driving unit (3), the horizontal driving unit (4) and the gap sensor to be calibrated. The invention has simple structure, low cost, fastness, effectiveness, high reliability and convenient maintenance.

The invention discloses a grain cutting machine. The grain cutting machine comprises a tooling mechanism, a cooling draught fan (1), an air inlet duct (2) and a grain cutting machine body (6). The tooling mechanism is arranged in the grain cutting machine body (6). An air inlet (7) is formed in the grain cutting machine body (6). The air inlet (7) is communicated with one end of the air inlet duct (2). The other end of the air inlet duct (2) is communicated with the cooling draught fan (1). The wind direction flowing into the grain cutting machine body (6) of the air inlet duct (2) corresponds to the tooling mechanism. The grain cutting machine solves the problems that a knife edge of the grain cutting machine is prone to wear, and the aging speed of a rubber roll is high, and the service life of the grain cutting machine is prolonged effectively.

The invention relates to a biofilter and discloses an upward-flowing fluidization biofilter coupled with a negative pressure membrane, for solving the technical problems of an existing biofilter, such as poor filtering effect on suspended particles, planktons, benthonic animals and microorganism residues in water bodies, as well as high turbidity of treated water. The upward-flowing fluidization biofilter comprises a water inlet, a water distribution layer, a supporting layer, a filling layer, an anti-interference cantboard, an air floatation releaser and a negative pressure membrane assembly. According to a water treatment process, inlet water passes through the upward-flowing biofilter, is filtered by the negative pressure membrane in an upper clear water area and is naturally siphoned by using a siphon tube to discharge water, and thus a water treatment process is finished. The method can be used for effectively removing organic pollutants, natural organic matters, ammonia nitrogen and other pollutants out of water, the loss of biological matters is reduced, a wear damage effect of particles, such as filler, on membranes is avoided, and the plugging effect of biological metabolites and biological cells on the membranes is also avoided.

The invention discloses a dual linear motor driven synchronization tracking control device and method. The device comprises a linear motor drive part, a strain detection part and a drive control part. The linear motor drive part comprises two linear motor drive devices which are completely identical in structure. The two linear motor drive devices are fixed on an experiment table in parallel and respectively comprise a linear motor, a linear guide rail, a slide block and a base. The strain detection part comprises a thin steel plate, a rotating shaft and a strain gauge. The drive control part comprises a servo driver, a motion control card, an industrial control computer, a strain controller and an A/D conversion card. Static and dynamic measurement can be performed by using the strain gauge so as to have the advantages of high sampling frequency and fast response speed, and the synchronization situation between two platforms can be monitored in real time.

The invention discloses a fine processing machine tool for foods. The fine processing machine tool is in direct contact with a mixture of a solvent and an additive for a mixture of a food material, isopropyl acetate and isobutyl acetate and is made of stainless steel which is 0Cr18Ni12Mo2Ti, wherein the content of C is less than or equal to 0.08%, the content of Cr is 16-19%, the content of Ni is 11-14%, the content of Mo is 1.80-2.50%, and the content of Ti is 5 times as much as that of C and is less than or equal to 0.7%. The machine tool is suitable for finely machining the food material and is favorable in wear resistance, convenient to clean and capable of avoiding polluting food raw materials.

The invention relates to the technical field of molds, in particular to an automatic pouring gate separation device. The automatic separation device comprises a conveying belt, a material guiding plate and a separation plate, wherein the conveying belt comprises a first side edge and a second side edge; the material guiding plate and the separation plate are sequentially arranged on the conveying belt in the conveying direction of the conveying belt; one end part of the material guiding plate is connected with the first side edge; a guided material outlet is formed between the other end part of the material guiding plate and the second side edge; the bottom edge of the material guiding plate is in press fit with the belt surface of the conveying belt; one end part of the separation plate is connected with the second side edge; a first separation outlet is formed between the other end part of the separation plate and the first side edge; and a second separation outlet used for separating pouring gates from a product is formed between the bottom edge of the separation plate and the belt surface of the conveying belt. By utilization of the automatic separation device, the pouring gates and the product can be dropped into containers separately, and thus the problem that the product is scratched and abraded by the sharp corners of the pouring gates can be solved. Besides, as the pouring gates and the gate can be put into the different containers without manual separation, the manpower is greatly save and the working efficiency is effectively improved.

The invention discloses a sealing ring used for a tieback plug. The sealing ring used for the tieback plug comprises a sealing ring body, wherein the sealing ring body is provided with a sealing groove, and the inside of the sealing groove is provided with a sealing circle fixedly connected with the sealing ring body into a whole. The sealing ring used for the tieback plug, which is disclosed by the invention, has the characteristic of small possibility of being damaged and fallen, and the reliability of the tieback plug is effectively improved.