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83results about How to "Low installation position requirements" patented technology
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Method for digital detecting rotating equipment rotary speed and rotary direction with single sensor
InactiveCN101275969ALow installation position requirementsSimple structureIndication/recording movementDevices using electric/magnetic meansRotation functionPosition angle
The present invention relates to a method for detecting a rotation speed and a rotation direction of a rotating apparatus with the digital detection of a single sensor. In the method, a turnable which is connected with a rotation axis with a same axial center is provided on the rotating apparatus. Different directions of the circumference of the turnable are provided with a plurality of inducing pieces of a same sensor. The position angles formed by adjacent inducing pieces are not equal. The inducing pieces are arranged in the sequence of the magnitude of the position angle. When the turnable rotates, a sensor detects the pulse output generated by the inducing pieces. The pulse signal is obtained through a shaping circuit and is outputted to an arithmetic circuit and is connected to a display circuit. A time period S for rotating the turnable for a circle is the summation of a plurality of adjacent pulse interval lengths of a plurality of inducing piece compositions. The rotation speed of the turnable is digitally displayed. The arrival sequence of spacing interval of random adjacent pulse is obtained for determining that the rotation direction of the turnable is clockwise direction or counter-clockwise direction. The invention requires only one sensor for completing the digital detection to the rotation speed and rotation direction of the rotating apparatus. The installation position of the inducing piece of the sensor has no high requirement and the structure is simple. The cost for digital detection and the cost for installing the sensor are reduced.
Owner:JIANGSU DAJIANG WOOD IND
Method and device for desulfurizing tail gas of ship engine by electrolytic method by using sea water
ActiveCN102698583AReduce dosageReduce concentrationDispersed particle separationElectrolysisSulfate radicals
The invention discloses a method and a device for desulfurizing the tail gas of a ship engine by an electrolytic method by using sea water. The method comprises the following steps of: feeding ship fume from which dust is removed into a first channel of a gas-to-gas heat exchanger, reducing temperature, and allowing the ship fume to flow through an absorption tower; performing electrolysis on natural sea water by using electrolysis chlorine producing equipment to produce a sodium hypochlorite sea water solution; pumping the sodium hypochlorite sea water solution into the absorption tower by a spraying pump in a certain liquid-gas ratio, forming fog drops in the tower, and allowing the fog drops to flow in a direction which is reverse to that of the fume to remove SO2; and discharging the desulfurized fume by a second channel of the gas-to-gas heat exchanger and a chimney. According to the method for desulfurizing the tail gas, the sodium hypochlorite sea water solution produced by the performing electrolysis on the sea water is used as adsorbent and replaces the original natural sea water. The sodium hypochlorite sea water solution oxidizes the sulfite ions dissolved in the sea water into sulfate radicals, so that the speed of absorbing sulfur dioxide by the sea water is improved. An aeration basin in the prior art is eliminated, the SO2 absorption rate of each unit of the sea water is improved simultaneously, the size of the absorption tower is greatly reduced, and a sea water desulfurizing process is applied to a ship.
Owner:SUNRUI MARINE ENVIRONMENT ENG
Grouting structure in tunnel driving process and grouting method matched with grouting structure
ActiveCN106761837AIncrease profitReduce grouting costsUnderground chambersTunnel liningSlurryUtilization rate
The invention relates to the technical field related to tunnel driving equipment, in particular to a grouting structure in the tunnel driving process and a grouting method matched with the grouting structure. The grouting structure in the tunnel driving process and the grouting method aim at solving the problem that in the prior art, filling a gap in the back portion of a segment cannot be achieved through synchronous grouting. The grouting structure in the tunnel driving process sequentially comprises a rock stratum and a segment stratum inwards from the inner wall of a tunnel, and accordingly a side-top arch, in unit of blocks, is formed. A support frame is arranged between the segment stratum and the rock stratum, and accordingly a hollow interlayer is formed. A base lining platform is arranged on the bottom of the side-top arch, and reserved grouting holes communicating with the hollow interlayer are formed in the positions, corresponding to the side-top arch blocks, of the top of the segment stratum. The reserved grouting holes are moveably connected with grouting pipes, and the other ends of the grouting pipes are connected with a grouting machine. The grouting structure in the tunnel driving process and the grouting method have the beneficial effects that the grouting cost is not increased, the grouting process is smooth, the utilization rate of the grout is high, the structure of equipment is simple, repairing and later maintenance are convenient, the assembling and disassembling time is short, grouting pressure can be monitored at any time, the grouting quality can be guaranteed, and a framework layer is formed on the contact surface between the grout and water glass so that flowing of the grout to a cutterhead can be reduced.
Owner:CHINA RAILWAY TUNNEL GROUP CO LTD +1
Switching device and spring operation mechanism thereof
ActiveCN106504919AImprove securityAvoid premature actionContact driving mechanismsSwitch power arrangementsElectrical equipment
The invention relates to a switching device and a spring operation mechanism thereof. The spring operation mechanism comprises an installation frame, wherein the installation frame is provided with an output shaft; the output shaft is provided with a closing position and an opening position; a driven connecting lever is fixedly arranged on the output shaft; the output shaft is rotationally sleeved with a driving connecting lever; the driving connecting lever has a release travel in a rotation travel; the output shaft is provided with a stop structure; the installation frame is rotationally provided with a retainer; the retainer is provided with a stop part; the stop part is used for being in stop fit with the stop structure to stop and position the output shaft at the corresponding closing position or opening position before the driving connecting lever strikes the driven connecting lever; the retainer is provided with a locking position for making the stop part and the stop structure in stop fit in the rotation travel; the retainer is also provided with an unlocking part; the unlocking part is struck by the driving connecting lever on the corresponding release travel to compel a retaining bar to rotate away from the locking position. The output shaft is prevented from rotating before the driving connecting lever strikes the driven connecting lever by using stopping and positioning of the retainer on the output shaft, and the safety performance of the switching device is improved.
Owner:PINGGAO GRP +2
Thermal runaway early warning method based on lithium battery safety valve opening soundacoustic signal detection
ActiveCN110188737AEasy to installLow installation position requirementsCharacter and pattern recognitionSmoke detectorsSufficient time
The invention discloses a thermal runaway early warning method based on lithium battery safety valve opening sound signal detection, and belongs to the technical field of energy storage battery safety. The method includes constructing identification classifier for identifying safety valve opening sound signal; cCollecting an acoustic signal in the battery compartment, and carrying out denoising processing on the acoustic signal; inputting the de-noised sound signal into the identification classifier; the lithium battery safety valve opening sound signal serves as a thermal runaway early warning signal, thermal runaway early warning is sent earlier compared with an existing smoke detector and an infrared detector, sufficient time is reserved for follow-up fire fighting measures, and then spreading of thermal runaway is effectively avoided.
Owner:ZHENGZHOU UNIV
Detection for corrosion of stayed cable and evaluation method thereof
InactiveCN102313680AReduce degradationReduce the difficulty of detectionInvestigating abrasion/wear resistanceEngineeringCorrosion
The invention discloses a detection of corrosion of a stayed cable and an evaluation method thereof. The method comprises the following steps: setting up an early warning detection device for corrosion of the stayed cable, using a test cable to simulate a bridge stayed cable; detecting the test cable, when the steel wire of the test cable with median diameter lower than 2.0mm exceeds 2% of total amount of the steel wire in the stayed cable, a profile cable detection is performed to the test cable, detecting the bridge stayed cable; evaluating the residual bearing capacity; and setting up an detection interval of the stayed cable for further. Compared with the present other methods, the detection method of the invention is more accurate, and the failure of the stayed cable caused by the oversized detection interval can be avoided, and the increased maintenance cost due to the undersized detection interval can be avoided either.
Owner:TONGJI UNIV
Sleeve rotating device
ActiveCN112787292ALower the altitudeEasy to installTotally enclosed bus-bar installationsSwitchgearSprocketControl theory
The invention relates to a sleeve rotating device which comprises a limiting part, the limiting part comprises at least three U-shaped limiting blocks, each U-shaped limiting block is provided with a bus barrel mounting part used for being mounted on a bus barrel, each U-shaped limiting block comprises a limiting side wall. The limiting side wall is used for being in stopping fit with the sleeve barrel flange in the axial direction of the sleeve barrel flange; the sleeve rotating device further comprises a driving part, the driving part comprises a chain wheel and chain mechanism, and the chain wheel and chain mechanism comprises a first chain wheel, a second chain wheel and a chain wound around the two chain wheels. The first chain wheel is arranged outside a sleeve cylinder in a sleeving mode when used, the first chain wheel comprises at least two chain wheel sections which are arranged in a split mode, and the chain wheel sections are oppositely combined to form the first chain wheel. The driving part further comprises a power unit, the power unit is fixedly arranged on one U-shaped limiting block, and the second chain wheel is in transmission connection with the power unit so as to rotate around the axis of the second chain wheel.
Owner:STATE GRID CORP OF CHINA +1
Motor control method
InactiveCN104360617AEasy to installFast installationProgramme controlComputer controlInformation sharingElectric machinery
The invention relates to a motor control method, in particular to a method for remotely controlling a motor through port replication. The motor control method is characterized in that a control port is replicated in a customized pLINK mode, and is separated from a controller body, control commands are issued remotely and executing data and real-time running data are fed back; and different supported protocols can be replaced or converted by the pLINK layer according to applications of a user, information is coded and decoded, the supported protocols can be changed or increased by upgrading driving software, each protocol is provided with an individual data channel, and communication instantaneity and communication efficiency are guaranteed. Installation, later maintenance and interface protection of a motor controller can be greatly simplified; the installation speed is increased; the number and the types of interfaces are reduced; the purchasing cost is reduced; a network can be controlled in a centralized and distributed mode; networking groups can run synchronously or asynchronously; and information of a plurality of controllers can be shared.
Owner:HANGZHOU YUYANG TECH
Interactive communication driving robot and control method thereof
InactiveCN108170056ASmooth driving journeyLow installation position requirementsProgramme controlComputer controlDriver/operatorTraffic accident
The invention discloses an interactive communication driving robot, which relates to a human-computer interaction technology. The interactive communication driving robot comprises a face information identification module used for collecting the face information of a driver and judging the type of expression according to the face information, a central processor used for judging the fatigue grade according to the type of expression and a pre-stored fatigue grade table, sending the fatigue grade to a human-computer interaction module and starting the human-computer interaction module, and the human-computer interaction module used for receiving the fatigue grade transmitted from the central processor and starting a corresponding dialogue list to speak to the driver according to the fatigue grade. Traffic accidents caused by fatigue driving of drivers can be reduced.
Owner:CHONGQING COLLEGE OF ELECTRONICS ENG
Ultrathin vapor chamber with composite wick structure and manufacturing method of ultrathin vapor chamber
PendingCN110972456AIncrease the heat exchange areaLow flow resistanceCooling/ventilation/heating modificationsPumping vacuumMachining
The invention discloses an ultrathin vapor chamber with a composite wick structure and a manufacturing method of the ultrathin vapor chamber. The ultrathin vapor chamber comprises an evaporation plateand a condensation plate; a cavity is formed in the inner surface of the evaporation plate, and a first capillary structure and a second capillary structure are arranged in the cavity; the first capillary structure is a micro-channel channel structure integrally machined with the evaporation plate, and the second capillary structure is a porous metal structure formed through sintering; a third capillary structure is arranged on the inner surface of the condensation plate, and the third capillary structure is provided with radial circumferential array micro-channels. The manufacturing method comprises the steps of integrated machining of the evaporation plate cavity and the first capillary structure, sintering of the second capillary structure, machining of the condensation plate, cleaningand seal welding, and vacuumizing and liquid injection. The vapor chamber with the composite wick structure has the advantages of being small in thickness, large in permeability, large in supportingstrength, high in heat dissipation efficiency and reversible in gravity.
Owner:GUANGZHOU INTELLIGENT COOLING ENERGY SAVING TECH CO LTD
Telescopic sleeve-free edge sealing device for composite board processing
The invention relates to the technical field of sleeve-free edge sealing equipment, in particular to a telescopic sleeve-free edge sealing device for composite board processing. The telescopic sleeve-free edge sealing device comprises an outer shell and a driving motor. The telescopic sleeve-free edge sealing device for composite board processing is composed of a transverse transmission shaft pipe installed in the outer shell, an inner adjusting partition plate and guide pressing wheels; the guide pressing wheels are driven by the driving motor to conduct extrusion edge sealing on the two ends of a composite board, and the guide pressing wheels stretch out and draw back automatically when the distance is changed, therefore, the supporting performance in the edge sealing device is greatly improved, deformation is avoided, the stability of the composite board in the edge sealing process is improved, and the lateral edge sealing effect is improved; The linkage is greatly improved, and the control is very convenient; and the requirement for the installation position is greatly lowered, the adjustable range is wide, assembly and disassembly are easy, and the later use cost is lowered.
Owner:江苏孜俊自动化科技有限公司
Medicine conveying mechanism for lifting ward
The invention relates to the technical field of article conveying, in particular to a medicine conveying mechanism for lifting a ward. The medicine conveying mechanism comprises an external feeding port formed in the inner wall of the ward, a guide mounting pipe, a driving motor and an electric control hydraulic supporting rod. The medicine conveying mechanism for lifting the ward is composed of the guide mounting pipe fixedly mounted on the inner wall of the ward, through mutual cooperation with a corridor medicine distribution mechanism, medicine can be directly conveyed to a designated lateral discharging opening position inside the ward, medical staff and patients can conveniently and directly take medicine in the ward, and the medicine distributing safety and efficiency are greatly improved; the improvement cost of an existing ward is very low, and popularization and promotion are convenient; a turnover cover plate can be synchronously controlled according to needs, so that distributed medicines can be separated and discharged conveniently, and the operation is simple; and a side feeding port with a built-in magnetic control side turnover cover plate is formed in the side wall, close to the external feeding port, of the guide mounting pipe, so that external linkage control is facilitated while the external sealing performance is guaranteed.
Owner:JIANGSU PANASIA MEDICAL TECH GRP CO LTD
Lifting structure at escape exit of security and protection lifesaving device
ActiveCN106522732ASimple structureImprove stabilityMan-operated mechanismPower-operated mechanismDrive shaftCurve shape
The invention discloses a lifting structure at an escape exit of a security and protection lifesaving device. The lifting structure is composed of two sets of sliding plates, rails, drive shafts and a plurality of sets of drive grooves. Linear guide blocks are arranged at the bottoms of the sliding plates correspondingly and move in the rails. The multiple through drive grooves of the same structure are formed in the planes of the sliding plates and are of a curve-shaped structure. The drive shafts are matched with the drive grooves in a one-to-one correspondence mode. One ends of the drive shafts are fixedly connected with an opening and closing part. The drive shafts are further in slide fit with the drive grooves through bearings correspondingly. The lifting structure has high bearing capacity for the escape exit which is high in weight, extremely thick and bulky in shape, particularly suitable for escape exits of a horizontally-placed structure, the transmission stability and synchronism of the lifting structure are good, complete sealing can be achieved, a structure of the multiple sets of drive grooves and the multiple sets of drive shafts for simultaneous driving can be arranged on the plane of the same sliding plate according to different escape exit requirements, and opening and closing under all conditions can meet requirements for stability, synchronism and balanced sealing.
Owner:SICHUAN SCI CITY NEW ARK SECURITY TECH
Automatic water leakage protection valve
InactiveCN107339485ALeak-proofWater-savingOperating means/releasing devices for valvesFluid-delivery valvesGear wheelControl engineering
The invention discloses an automatic water leakage protection valve which comprises a valve body, a triggering mechanism arranged on the valve body, and a connecting and disconnecting assembly making a valve body water way connected and disconnected. The valve body is provided with a water inlet and a water outlet. The triggering mechanism comprises an impeller, a reduction gear mechanism set, a clutch gear, a swing arm gear and a reset assembly. The impeller drives the reduction gear mechanism set. The clutch gear is engaged with the reduction gear mechanism set and is selectively engaged or disengaged with the swing arm gear. When the swing arm gear is engaged with the clutch gear and rotates to the limit, the connecting and disconnecting assembly is triggered to disconnect the valve body water way. When the swing arm gear is disengaged with the clutch gear, the swing arm gear rotates reversely to reset under the effect of the reset assembly.
Owner:XIAMEN EASO CO LTD
Ship rotary shaft system instantaneous rotational speed measurement device and method
InactiveCN109870588AEasy to install and maintainLow installation position requirementsDevices using optical meansSpeed measurementMeasurement device
The invention discloses a ship rotary shaft system instantaneous rotational speed measurement device and method. The device comprises a magnetic grid, a magnetic read head, a signal preprocessing unit, a signal acquisition unit and a rotational speed calculation unit; the magnetic grid surrounds the surface of a to-be-measured rotary shaft of a ship, and formed round rings are coaxial with the to-be-measured rotary shaft; the magnetic read head is arranged above the magnetic grid, an effective induction face of the magnetic read head faces the magnetic grid and is tangent to the round rings ofthe magnetic grid, and a direction where a long edge of the magnetic read head is positioned should be the same with a rotation direction of the magnetic grid; the signal preprocessing unit is used for converting a magnetic grid pulse signal read by the magnetic read head into a square wave pulse signal; the signal acquisition unit is used for acquiring the magnetic grid square wave signal processed by the signal preprocessing unit and carrying out counting; and the rotational speed calculation unit is used for generating a high-frequency clock signal and combining a magnetic grid square wavepulse number to calculate an instantaneous rotational speed of the to-be-measured rotary shaft. The device disclosed by the invention is convenient to mount, high in reliability, high in rotational speed measurement accuracy and high in frequency.
Owner:NANJING UNIV OF SCI & TECH
Electric control noninvasive installation type buoy level meter
PendingCN112525302ALow requirements for installation locationWide range of applicationsLevel indicators by floatsControl modeElectrical and Electronics engineering
The invention relates to the technical field of liquid level measurement, in particular to an electric control noninvasive installation type buoy liquid level meter which comprises a top measuring unit, a bottom detecting unit fixed to the lower end of the top measuring unit, an electromagnet and an adjusting motor. According to the electric control noninvasive installation type buoy liquid levelmeter, an internal telescopic adjusting pipe controlled by the adjusting motor is installed in a lateral connecting pipe, and a lateral containing groove internally provided with an elastic overturning control support is formed in the outer side face of the internal telescopic adjusting pipe; the lateral connecting pipe is fixedly installed on the outer wall of a container to be measured through the elastic turnover control support, punching is not needed during installation and fixation, the requirement for the installation position is low, and the application range is wider. An external manual control support is installed on the outer side of a threaded sealing cover, people can select different adjusting and control modes according to needs, and therefore the liquid level meter is simpler and more convenient to use and operate.
Owner:环弘自动化仪表科技江苏有限公司
Novel large-inertia rotating-shaft braking system
InactiveCN105822696ALow installation position requirementsContact stabilityAxially engaging brakesFluid-pressure actuatorsHydraulic cylinderPiston rod
The invention discloses a novel large-inertia rotating-shaft braking system. The novel large-inertia rotating-shaft braking system comprises brake installing supports, brakes and a brake disc. In the brakes, guiding columns are installed on an installing base, the guiding columns are sleeved with base bodies, hydraulic cylinders and lower brake pads are installed on the base bodies respectively, upper brake pads are connected with piston rods of the hydraulic cylinders, and travel sensors are installed on the upper brake pads and used for detecting the thickness of the upper brake pads; the multiple brakes are installed on the multiple brake installing supports through installing bases of the brakes, the upper brake pads and the lower brake pads of all the brakes are located on the two sides of the brake disc respectively, and the multiple brakes are evenly distributed outside the circumference of the brake disc. According to the novel large-inertia rotating-shaft braking system, the multiple brakes are adopted, two brake pads are adopted for each brake, braking force is extremely large, the braking effect is quite remarkable, and the novel large-inertia rotating-shaft braking system is suitable for large-inertia rotating-shaft braking; the thickness of the brake pads is detected through the travel sensors in real time, and safety accidents caused by excessive abrasion failure of the brake pads are avoided.
Owner:GENERAL ENG RES INST CHINA ACAD OF ENG PHYSICS
Big data optical fiber wire installation limiting device
InactiveCN111812790AExpand the range of supportLow installation position requirementsFibre mechanical structuresEngineeringMaterials science
The invention relates to the field of optical fiber installation limiting devices, in particular to a big data optical fiber wire installation limiting device which comprises a fixing structure, a telescopic structure, a first angle adjusting structure, a guiding structure, a driving structure and a second angle adjusting structure. The arrangement of the telescopic structure facilitates the adjustment of the supporting height of an optical fiber wire, enables the supporting range of the optical fiber wire to be larger, and reduces the requirements for the installation position of a telegraphpole; through the arrangement of the driving structure, limiting of the telescopic structure can be done conveniently, and the telescopic structure is more stable after height adjustment; and one endof the telescopic structure used for adjusting the supporting distance is fixed to the second angle adjusting structure, the angle between the telescopic structure and the fixing structure can be conveniently adjusted through the second angle adjusting structure, the supporting angle of the optical fiber wire in the vertical direction can be conveniently adjusted to be changed, and the supportingrange of the optical fiber wire is larger; and meanwhile, the optical fiber wire with different angles can be conveniently supported and guided, and the operation flexibility of optical fiber wire fixing is improved.
Owner:永旗农业科技发展(杭州)有限公司
Automobile sag repairing tool
The invention discloses an automobile sag repairing tool. The automobile sag repairing tool comprises a pulling force part and a pair of adsorption chains; each adsorption chain is formed in the modethat at least four rectangular hinge blocks are hinged to one another, and the bottoms of the side faces, in the same direction, of the opposite faces of the rectangular hinge blocks are provided withhinge points used for allowing the adjacent rectangular hinge blocks to be hinged; hooks are arranged on the rectangular hinge blocks located at the corresponding ends of the sides, far away from thehinge points, of the adsorption chains; and the rectangular hinge blocks are provided with T-shaped fixing rods in a penetrating mode in the width direction, and suction cups are arranged at the ends, close to the hinge points, of the T-shaped fixing rods. According to the automobile sag repairing tool, in the repairing process, a pair of the adsorption chains are symmetrically adsorbed to the two sides of an automobile sag, a rotating handle is rotated to enable a rotating shaft to wind a first connecting rope and a second connecting rope, the first connecting rope and the second connectingrope pull the adsorption chains to rotate to repair the sag, no supporting point is needed in the repairing process, the condition that in the repairing process, counter-acting force is generated to act on an automobile to generate an adverse effect is avoided, labor is saved, operation is easy, and the automobile sag repairing tool is suitable for a green hand.
Owner:ANHUI UNIVERSITY OF TECHNOLOGY AND SCIENCE
Grey cast iron platform surface polishing treatment system
PendingCN113927454AReduce lossExtended service lifeGrinding carriagesPolishing machinesPolishingStructural engineering
The invention belongs to the technical field of machining, and particularly relates to a grey cast iron platform surface polishing treatment system. The system comprises a milling machine, a grey cast iron platform and a detection mechanism, wherein the detection mechanism comprises a left square bracket-shaped frame, a cotton cushion, sliding blocks and a guide rail; the cotton cushion is arranged at the bottom of the inner side of the left square bracket-shaped frame, and the sliding blocks are arranged on the two sides of the bottom of the left square bracket-shaped frame; and the sliding blocks are in sliding connection with the guide rail. According to the system, by arranging the detection mechanism, the large and small cutting amount is prevented, manpower is saved, the machining time is shortened, the polishing cost is reduced, the loss of the gray ink cast iron platform is reduced, and the service life of the gray ink cast iron platform is prolonged.
Owner:孙宜兵
Pipeline fixing structure and air conditioner comprising same
PendingCN108204479AImprove versatilityLow installation position requirementsPipe supportsElectrical apparatusMechanical engineeringEngineering
Owner:GREE ELECTRIC APPLIANCES INC
Luminous zebra crossing warning device for traffic control system
ActiveCN113605274AAdjustable structureLow requirements for installation locationTraffic signalsRoad signsDrive motorEngineering
The invention relates to the technical field of traffic control pedestrian warning, in particular to a luminous zebra crossing warning device for a traffic control system. The device comprises longitudinal control pipes installed on the road surfaces at the two ends of the zebra crossing, LED warning lamps used for emitting warning light, a driving motor, an electric telescopic supporting rod, a first infrared human body sensor, a second infrared human body sensor and a solar cell panel used for supplying power. The luminous zebra crossing warning device for the traffic control system has the advantages that the structure is adjustable, the requirement on the mounting position is very low, and the application range is very wide; the LED warning lamp and an internal reflection ball controlled by the driving motor are installed in a lateral assembling cover, light of the LED warning lamp is reflected to the two sides of the zebra crossing through rotation of the internal reflection ball, and meanwhile follow-up display is formed in the outer side of the zebra crossing according to the moving direction of pedestrians; and therefore, early warning can be provided for a driving driver in a dynamic mode, and the warning effect is better and more visual.
Owner:NANTONG TIANCHENG OPTOELECTRONICS TECH CO LTD
Device and method for calibrating working positions of polishing head and loading and unloading table
PendingCN114678304AReduce in quantityLow installation position requirementsSemiconductor/solid-state device manufacturingLapping machinesPolishingReciprocating motion
Owner:HANGZHOU ZHONGGUI ELECTRONICS TECH CO LTD
Discharged wate deodorization device
PendingCN107620358AReduce space occupation and installation location requirementsReduce space occupationSewerage structuresDomestic plumbingWater pipeEngineering
The invention discloses a discharged water deodorization device, which comprises a main body (2) and connectors (1), wherein the connectors (1) are connected at the two ends of the main body (2) in asealed way; the connectors (1) are used for being connected with a water pipe in a sealed way; the main body (2) comprises an outer tube body and an inner post body; at least one spiral groove passageis formed between the outer tube body and the inner post body; the length of the spiral groove passage is not smaller than twice of the spiral lead. When the discharged water deodorization device provided by the invention is used, a spiral inside structure is used for forming a space U-shaped structure; the water seal deodorization effect is simply and effectively achieved; in addition, the workcan be realized only through directly connecting the connectors (1) into the water pipe; the requirements on the space occupation and installation position are reduced; the water pipe can be directlyconnected into any position of a water pipe just like a direct connector of the water pipe; the space occupation is reduced to the minimum.
Owner:GUANGDONG UNIV OF TECH
Double-spring type winding equipment
Owner:JIANGSU HUITIAN ELECTROMECHANICAL TECH CO LTD
Worm-gear clamp with spiral spring
ActiveCN104251352ALarge amount of adjustmentSmall footprintSleeve/socket jointsCoil springEngineering
The invention discloses a worm-gear clamp with a spiral spring. The worm-gear clamp comprises a washer, the spiral spring, a bolt, a clamping strip and a clamping block. The clamping strip is bent into a round worm wheel; the clamping block is provided with a worm bolt having a meshing end inserted into an inner cavity of the clamping block; the meshing end is provided with meshing teeth meshing with worm teeth of the clamping strip; the rotation forcing end of the worm bolt is sleeved with the spiral spring; the washer sleeving the worm bolt is arranged between the spiral spring and the clamping block; the washer matches with the spiral spring in diameter; the rotation forcing end of the worm bolt is provided with a bolt head; the inner side of the bolt head matches with the spiral spring in diameter so that two ends of the spiral spring are abutted between the bolt head and the washer. The worm-gear clamp has the advantages such that a clamping range is wide, spring adjustment is great, comprehensive compensation can be achieved, the requirement on a mounting position is low, breaking torque is greater, cost is low, mounting efficiency is high, the fact that tooth gnawing occurring in assembly affects free torque is avoided, and the bolt needs small space.
Owner:CHONGQING YIGE PIPELINE TECH
Ship rotating shaft system phase angle measuring device and method
InactiveCN109839059AEasy to install and maintainLow installation position requirementsUsing electrical meansDevices using electric/magnetic meansMeasurement deviceGrating
The invention discloses a ship rotating shaft phase angle measuring device and method. The device comprises a magnetic grating strip, a magnetic read head A, a magnetic read head B, a photoelectric switch, a reflective sheet, a discriminating decoupling circuit, a signal collecting unit and a phase angle calculating unit. The magnetic grating strip surrounds the surface of a to-be-measured rotating shaft of a ship to form a ring coaxial with the rotating shaft. The magnetic read head A and the magnetic read head B are symmetrically arranged above the magnetic grating strip, and the effective sense surfaces thereof face the magnetic grating strip and are tangent to the ring of the magnetic grating strip. The direction of the long side should be the same as the rotation direction of the magnetic grating strip. The magnetic grating pulse signals output by A and B have a phase difference. The reflective sheet is arranged on a ring face adjacent to the magnetic grating strip. The photoelectric switch is arranged above the ring face in which the reflective sheet is located. After the discriminating decoupling circuit discriminates and decouples two pulse signals. The collecting unit carries out unified counting to calculate the current phase angle of the rotating shaft. The device provided by the invention has the advantages of convenient installation, good reliability, high phase angle measurement accuracy, fast frequency and good low speed performance.
Owner:NANJING UNIV OF SCI & TECH
Hydroelectric impeller
PendingCN110318930AReduce construction costsLow installation requirementsHydro energy generationReaction enginesImpellerWater flow
Provided is a hydroelectric impeller. A mounting frame is fixedly connected with the middle portion of a rotating body. A plurality of isolation beams are fixedly connected inside the mounting frame.The isolation beams isolate the interior of the mounting frame into a plurality of blade unit accommodating spaces. A blade unit is arranged in each blade unit accommodating space. Each blade unit iscomposed of a hinge shaft fixedly connected to the middle of the corresponding blade unit accommodating space and two blades located on the same side of the corresponding blade unit accommodating space, each hinge shaft isolates the corresponding blade unit accommodating space into two blade accommodating spaces, every two blades and the two corresponding blade unit accommodating spaces are correspondingly arranged, the connecting ends of every two blades are correspondingly hinged to the corresponding hinge shafts, and the free ends of every two blades are limited by the ends of the blade unit accommodating spaces. A limiting stop is fixedly attached to the end, away from the rotating body, of each hinge shaft. The impeller has low installation requirements, can reduce the construction cost of hydroelectric power generation and can adapt to changes in the direction of water flow, and the hydroelectric impeller can be more conveniently installed.
Owner:XUZHOU UNIV OF TECH
Float liquid level meter with quick release mechanism
PendingCN112525301AEasy to maintain and replace laterEasy to replaceLevel indicators by floatsLiquid level measurementEngineering
The invention relates to the technical field of liquid level measurement, and particularly relates to a float liquid level meter with a quick release mechanism. The meter comprises an electric float liquid level meter body and a lateral liquid guide cylinder. The float liquid level meter with the quick release mechanism is composed of the electric float liquid level meter body, the lateral liquidguide cylinder and a transverse lateral liquid guide pipe installed at the position of a circular assembly through hole, split type arrangement is adopted, later maintenance and replacement are convenient, and meanwhile disassembly and storage are convenient; and lateral containing grooves internally provided with inner side overturning extrusion rods and outer side overturning adjusting rods areformed in the two ends of the outer side surface of the transverse lateral liquid guide pipe correspondingly, and the outer side of the transverse lateral liquid guide pipe is movably connected with an outer sealing extrusion ring controlled by an inner thread extrusion block. A lateral adjusting ring of the outer side of the transverse lateral liquid guide pipe synchronously drives the inner sideoverturning extrusion rods and the outer side overturning adjusting rods to overturn and drives the outer sealing extrusion ring to horizontally move so that installation and separation are performed, and the loading and unloading operation is simple and convenient.
Owner:环弘自动化仪表科技江苏有限公司
Three-dimensional mass center adjusting structure of solid rocket engine
PendingCN114576037AReduce the impactLow installation position requirementsRocket engine plantsMechanical engineeringSmall range
The invention provides a solid rocket engine three-dimensional mass center adjusting structure which comprises a supporting piece arranged at one end of a shell of a rocket engine. A limiting piece is arranged between the supporting piece and the shell of the rocket engine, high and low steps are formed between the limiting piece and the supporting piece, and the balancing weight is provided with a mounting part matched with the supporting piece and the limiting piece; the balancing weight is arranged on the supporting piece and the limiting piece in a sleeving mode, and the balancing weight and the limiting piece are connected together. The problems that in the prior art, the number of balancing weights is large, and each balancing weight needs to be provided with an installation position, so that design and machining are complex are solved. The structure is simple, the design is simple, the influence on the appearance of a product is small, and the requirement for excessive installation positions is omitted; less connection and high reliability are realized; the device is suitable for mass center and mass adjustment in a small range, can achieve small influence on space, and has the advantage of replacement.
Owner:西安零壹空间科技有限公司 +4
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