276results about How to "Anti-vibration" patented technology

The invention discloses an adjustable pipe hanging bracket and an adjustable hanging bracket assembly for suppressing ship pipe vibration noise, wherein the adjustable hanging bracket assembly comprises the hanging bracket. The hanging bracket comprises a base plate and an adjustment bolt, and the base plate is fixedly connected with a ship body. The hanging bracket is characterized in that the adjustment bolt comprises a bolt part on the upper portion and a spherical part at the bottom, outer threads are arranged on the bolt part, a bolt hole matched with the bolt part is formed in the base plate, the adjustment bolt is installed in the bolt hole, the spherical part of the adjustment bolt is embedded into a spherical clamping groove, an opening is formed in the top of the spherical clamping groove, the diameter or width of the opening is smaller than the diameter of the spherical part, and the bottom of the spherical clamping groove is fixedly connected to the outer wall of a pipe or the top of a pipe clamp device. The adjustable pipe hanging bracket is flexible and adjustable in connecting mode, good in vibration resistant effect and suitable for the ship pipe, meanwhile, the hanging bracket assembly based on the hanging bracket discloses a pipe clamp structure matched with the hanging bracket, and the hanging bracket assembly has the advantages of further suppressing the pipe vibration noise and being convenient to install and use.

A bluetooth communication-based controller monitoring control system for the entire fuel cell car, more particularly, the on-site real-time monitoring for the controller of the entire fuel cell car via the intelligent handset terminal end, PDA and the laptop computer. The controller monitoring control system belongs to the field of the industrial on-site supervision and is composed of a monitor terminal with the bluetooth function, a bluetooth wireless send-receive port, a entire car controller, a CAN bus set. The monitor terminal communicates with the bluetooth wireless send-receive port via the bluetooth 2.0+EDR wireless communication protocol; the bluetooth wireless send-receive port is connected with the entire car controller; the entire car controller is connected to the CAN network. The utility model has the advantages of high stability and reliability, high transmission rate, powerful anti-jamming ability and flexible application. Also, the multi-media memory cards with the large capacity such as CF, SD and MMC are adopted so as to facilitate the carry-over due to the small size.

The invention relates to an acoustic logging-while-drilling transmitting unit and a device thereof. The transmitting unit comprises a drill collar chisel groove (17), a transmitting transducer (9) and an acoustic window (19), wherein the drill collar chisel groove (17) is provided with a step; the transmitting transducer (9) is arranged on the step and is used for generating acoustic waves; the acoustic window (19) is arranged on the transmitting transducer (9); the acoustic window (19) and the transmitting transducer (9) form a cavity; oil is injected into the cavity to form a liquid cavity; and the acoustic waves generated by the transmitting transducer (9) are transmitted outwards through the liquid cavity. The multi-pole acoustic logging-while-drilling transmitting device has the advantages of high temperature resistance, high pressure resistance, vibration resistance, small size, easiness in assembly, good insulation and sealing and the like.

The invention discloses a grid mould release agent, which comprises the following components in percentage by mass: 95.0-97.0 percent of water, 0.1-0.3 percent of polytetrafluoroethylene, 2.0-4.0 percent of cork powder, 0.15-0.2 percent of aluminum dihydrogen phosphate, 0.12-0.15 percent of adhesive and 0.2-0.35 percent of stabilizer. The mould release agent provided by the invention has the advantages of easiness in spray coating, superior adhesion, high temperature resistance, small surface tension, high pressure resistance, smooth exhaust and the like, is extremely suitable for a lead calcium alloy grid cast through gravity at a high temperature; phenomena of blowhole, cracks and the like of the grid can be extremely effectively reduced; meanwhile, mould spray frequency in a unit time can be reduced; and the production efficiency and the product quality are improved.

The invention discloses an intelligent operating system and method for a train examination robot of a railway vehicle, and belongs to the field of technical inspection of railway freight trains. The intelligent operating system for the train examination robot of the railway vehicle comprises a train examination robot system, a train examination operation, monitoring and management platform and a train examination wireless network platform; a wheel type robot and an air-control big gate are controlled to combine with an automatic control technology, a laser detection technology, an inactive radio frequency transmission technology, a position self-sensing technology, a machine visual technology and a digital image analysis technology to acquire holographic data of a to-be-detected vehicle; a mode identification technology is utilized to perform treatment and analysis as well as decision-making, so that brake test automation, part quality state diagnosis informatization, fault treatment monitoring and reexamination traceability after train maintenance in train examination operation of the railway vehicle are realized. The intelligent operating system realizes replacing manual examination by robot examination, can be suitable for different environments of train examination application places across the country, can comprehensively improve quality and efficiency of train examination operation, and has relatively great social benefits and economic benefits.

A biologic water-proof adhesive for building, wood, metal, ceramic, glass, etc is prepared from glutinous rice, water, ethene-vinyl acetate emulsion, dioctyl phthalate, PVC, tung oil, acrylic emulsion and natural rubber. Its advantages are high weatherability, adhesion, tension strength, elongation percentage for breaking and resistance to water, acid and alkali.

The invention discloses a metal plate bending machine which comprises an operating platform. The operating platform is vertically provided with two side plates which are in parallel with a certain distance and are characterized in that: the front part of each side plate is provided with a guiding device, the middle part of the side plate is respectively provided with a feeding device and a dadoing device; and the rear part of the side plate is provided with a bending device. In the invention, two rotatable bending knives controlled by stepping motors are adopted to realize the functions of bending and cutting; and the dadoing device is installed before a metal plate is bent, and a rack mark is pre-drawn, thereby the bending precision is improved. The metal plate bending machine provided by the invention has the advantages of full automation, reasonable structure, anti-vibration, wide bending angle range, small size, integration of bending and cutting and the like.

The invention provides an environmentally-friendly three-dimension sealing and packing material which is developed by using the characteristics of different film products, has different functions, can be formed quickly on use sites and has recycling value. The three-dimension packing material is combined with a plurality of layers of functional resin films without any extra supporting device. The films are sealed by heat and folded to form a space capable of storing gas media including the air for a long time, and the air and the films jointly form the functional three-dimension packing material by using a self-adhesive film preventing and air blocking technology. The three-dimension packing material is completely flat before use, is quickly formed in three dimensions by using a gas such as the air when to be used by a user and forms an air bag protective structure around an product to be protected. The three-dimension packing material has excellent comprehensive protective functions such as extrusion resistance, shock resistance, falling resistance and impact resistance and functions such as light shielding, moisture prevention, electrostatic prevention, conductivity, wear resistance, corrosion resistance, rust resistance, and printability.

The invention discloses a metal plate bending machine. The machine comprises an operation platform, wherein two side plates are vertically arranged on the operation platform, are parallel to each other and have a certain distance so as to form a material passage through which a metal plate passes. The machine is characterized in that: a guide device is arranged in front of the inlet of the material passage; a compressing device used for clamping the metal plate is arranged in the middle of the material passage; and two long striped bending knives are arranged at an outlet of the material passage, are vertical to the operation platform and can rotate horizontally. In the metal plate bending machine, a pressing wheel is arranged at an inlet of the material passage, the compressing device is arranged in the middle of the material passage, and the two bending knives which are automatically controlled are used, so the machine has the advantages of full automation, reasonable structure, shock resistance, large bending angle range, small size, integral bending and cutting and the like.

The invention provides a real-time monitoring variable temperature and pressure type laser speckle measuring system which comprises a fixing device. The fixing device is used for fixing a sample and receiving laser signals. Cement resistors are arranged around the sample on the fixing device and are used for heating the sampler. The system comprises a control unit which comprises a CPU control unit, a temperature collecting system which is connected with the input end of the CPU control unit, a key, a digital display unit and a temperature control module, wherein the digital display unit and the temperature control module are connected with the output end of the CPU control unit. The temperature sensor is used for measuring the temperature of the sample and transmitting the temperature to the CPU control unit, after the CPU control unit collects the temperature, PID operation is conducted on the temperature and the set value input by the key, pulse width modulation signals are output, the pulse width modulation signals control a power field-effect transistor of the temperature control module to change the voltages of the cement resistors, and temperature control is achieved.

The invention provides a double-component epoxy structural adhesive and a preparation method thereof. The structural adhesive is prepared from a component A and a component B in a weight ratio of 1:1, wherein the component A comprises 100 parts by weight of modified bisphenol A epoxy resin and 40-100 parts by weight of active filler; and the component B comprises 30-40 parts by weight of modified fatty amine, 10-25 parts by weight of toughener, 1.5-5 parts by weight of coupling agent and 75-140 parts by weight of thixotropic filler. The double-component epoxy structural adhesive is curable at normal temperature, can be cured quickly at moderate temperature, and can be completely cured at 80 DEG C within 1 hour or at 100 DEG C within half an hour. The adhesive has thixotropy, and the adhesive liquid does not flow when being cured at normal temperature and raised temperature; and the double-component epoxy structural adhesive has the advantages of shock resistance, vibration resistance and high bonding strength, and has favorable effects on bonding glass fiber reinforced plastics, steel, aluminum and other metal profiles.

The invention relates to a non-contact stress detection system and method. The system comprises a coil, an alternating current power supply, a giant magneto resistance element and a steel rail, wherein the giant magneto resistance element is arranged in the coil, the coil is connected with the alternating current power supply, the alternating current power supply on the coil is used for providing alternating current at fixed frequency for the coil, the alternating current can generate an alternating magnetic field, corresponding eddy current is produced by the magnetic field on the steel rail, and the giant magneto resistance element is used for measuring the magnetic field intensity that the magnetic field produced by the alternating current interacts with a magnetic field produced by the eddy current and realizing the detection of stress of the steel rail. The system disclosed by the invention adopts an electromagnetic induction way to measure the stress of the steel rail, and the problems that precision and service life of a contact type stress sensor are affected by vibration of the steel rail can be solved in a non-contact way.

This invention relates to a transformer on a sea platform, in which, its winding is formed by multiple transposed conductors, longitudinal gas channels are set between high voltage coils, formation bracing strips are used to isolate the windings and the insulation tube to form axial gas channels, which are formed between low voltage coils and between coils and the high voltage tube, a top-blown cooling fan is set at the bottom of the coils, bracing plates are used to fix many places between a core post and the internal winding filled with insulation bars, the places between internal and external windings are fixed by bracing strips, an U-steel and a square iron are welded to an iron yoke, multiple pairs of screw rods are used to locate the top of the device and the shell and positions between the bottom of the device and the shell are fixed by foot screws and the side wall of the shell is welded with locating round bars.

The invention relates to a functional type self-adhesive film one-way air blocking three-dimensional packing material and a preparation method thereof. The three-dimensional packing material is formed by combing a plurality of layers of functional resin thin films, the functional resin thin films form a space used for storing the gaseous medium including air through hot sealing and folding, and the air and the thin films are combined into the functional type self-adhesive film one-way air blocking three-dimensional packing material. Compared with the prior art, the air three-dimensional packing material of the invention has excellent comprehensive protective properties of extrusion resistance, vibration resistance, falling prevention and buffering, and meanwhile, can be embodied with the functions of light prevention, moisture resistance, electrostatic prevention, electric conduction, wear-resistance, corrosion resistance, rust protection and impressionability, etc.

The invention discloses a high-current cage type belt spring inserting hole which is simple in processing process, low in cost, tight and reliable in contact, long in service life and large in rated load. A comb-shaped metal sheet metal 2 which is formed by elastic metal strips with one ends connected and with a certain angle of inclination with the end surface is inserted in an inserting hole body 1, wherein an enveloping surface formed by the elastic metal strips of the comb-shaped sheet metal 2 is a single-blade rotation double-curved surface, and is shaped like a waist drum with large two ends and small middle part. The integral comb-shaped sheet metal 2 replaces a conventional wire spring thread and a conventional inner sleeve, a plurality of elastic metal strips are uniformly enveloped on the surface of an inserting needle, are in multi-wire envelop and parallel contact, the shortcomings and the defects are overcome, and the advantages of a wire spring inserting hole contact mode and a crest spring structure are integrated into a whole.

A viaduct structure comprises a deck and a supporting body used for supporting the deck. The viaduct structure is characterized in that the deck and / or the supporting body is made of a metal plate; the metal plate comprises a first panel, a second panel and multiple hollow pipes, wherein the multiple hollow pipes are arranged between the first panel and the second panel; brazing layers are arranged between the hollow pipe and the first panel and between the hollow pipe and the second panels; and a turned-up edge is arranged at at least one end of each hollow pipe. The viaduct structure has theadvantages of light deadweight, high strength, stable structure, high pressure bearing capacity, sound insulation and noise reduction, high temperature resistance, vibration resistance, long servicelife and the like, and the viaduct structure can also be conveyed and spliced.

The invention discloses a permanent magnet brushless direct current motor equipped with a magnetic encoder. The permanent magnet brushless direct current motor comprises a machine shell, a control electric board, a rotor and a stator, wherein the control electric board is fixed in the center of the inner side of the front end cover; a magnetic encoder chip is arranged in the center of the control electric board; the rotor comprises a central rotary shaft and a rotor disc; a cylindrical permanent magnet is embedded in the center of the front end of the central rotary shaft; the front end plane of the cylindrical permanent magnet is close to and not fitted with the magnetic encoder chip; four Hall sensors, distributed around the circumference, are arranged in the magnetic encoder chip; two opposite Hall sensors are connected together by an encoding circuit through a corresponding differential amplifier; each analog-digital converter converts analog signals into digital signals and noise is filtered out by a corresponding digital filter; and then a digital signal processor is connected for processing so as to obtain an angle and magnitude. The permanent magnet brushless direct current motor is simple in structure, convenient to assemble, efficient and reliable, and effectively improves recognition accuracy on the rotor angle; and in addition, the magnetic encoder has the characteristics of vibration resistance, corrosion resistance, interference resistance and the like.

The invention discloses a shock-resistant supporter and hanger based on variable-stiffness spring vibration reduction. The shock-resistant supporter and hanger comprises an oblique strut, a vertical strut and a horizontal strut; the oblique strut serves as a main shock-resistant assembly and adopts a superimposed spring shock absorber; the superimposed spring shock absorber mainly comprises threesprings in different lengths and two sleeves; and with such structure, a variable-stiffness flexible shock-resistant mechanism is provided and the shock-resistant supporter and hanger has a good vibration reduction ability and shock resistance. The three superimposed springs in different lengths can be subjected to stiffness adjustment passively according to external excitation, and can be appliedto the shock resistance and the vibration reduction of a pipe network supporter and hanger in a bad service environment more. The shock-resistant supporter and hanger has the functions of the shock resistance, the vibration reduction and the reinforcement; the structure is simple, the production is convenient, the mounting is convenient, and the cost is reduced substantially; the adaptability isgood, the stiffness can be adjusted passively according to the external excitation, and the superimposed springs can be applied to the bad service environment; and the shock-resistant supporter and hanger has the good variable-stiffness flexible shock-resistant mechanism, so that the shock resistance and vibration reduction efficiency is improved substantially.

It relates to a half conductive regenerative battery free warning LED environment friendly multi function light. It is battery and chemical energy and pollution free light. It has cloche cap and LED lens lamp holder set in front rear of the lens cloche cap, with the latter set in front of the chemical reflector and LED, converting switch components outside the housing, magnetic sensing switch external member connecting with the seal housing, inner container inside the outer housing, coil frame set around the inner container, permanent magnet inside the inner container, circuit board inside the circuit base that has upper opening contain circuit board and super capacitor, with the lower part half supporting the inner parts and fastening the front limit protective washer. The super capacitor is set inside the outside housing, between the inner container and the circuit board, with the LED at the front of the housing, optical reflector between the inner front of the outer housing, LED top and housing head triangle bracket, with optical seal cover at the front of the housing.

The invention relates to an improved air packaging device. Two layers of thermoplastic films are subjected to secondary thermoplastic packaging to form a stereoscopic packaging body which can be sealed. The improved air packaging device comprises a plurality of independent seal air chambers and a main passage, wherein the main passage is provided with an air inlet; and each seal air chamber is communicated with the main passage by a check valve formed by two layers of films. The improved air packaging device is characterized in that the check valve and the main passage for inflating the check valve are formed by carrying out thermoplastic packaging on the two layers of films and one layer of thermoplastic film of the packaging body into a whole and can be arranged in any position of the seal air chambers. Meanwhile, because the two layers of check valve films are only fixed on any layer of thermoplastic film, and the check valve films are adhered to the thermoplastic film after inflated and do not bear any tension, the tearing risk does not exist, and the safety of the packaging device is greatly improved.

The invention relates to optical-mechanical-electrical integrated control devices, in particular to an optical-mechanical-electrical integrated device for removing impurities in rice. The optical-mechanical-electrical integrated device is composed of a vibrator, a vibrator switch, a right-side charge coupled device (CCD) camera, a blowing nozzle, an electromagnetic valve, a touch screen, a central control unit and the like. Heating electrothermal wires are installed on an outer layer of a sliding groove channel. An upper illuminating lamp and a lower illuminating lamp are installed below the sliding groove channel and arranged horizontally. The central control unit is a programmable logic controller (PLC). The touch screen is installed on a console of a machine. The optical-mechanical-electrical integrated device is ingenious in structure; the CCD camera is adopted and has a powerful self-scanning function, the image definition is high, and the CCD camera is capable of capturing images at any moment; the adopted PLC is high in reliability and disturbance resistance, fully furnished, complete in function and high in applicability.

An air vehicle structure comprises a framework structure and a skin connected with the framework structure, wherein at least one of the framework structure and the skin is made of plate metal; the plate metal comprises a first panel, a second panel as well as a plurality of hollow tubes arranged between the first panel and the second panel, and brazing layers are arranged between the hollow tubesand the first panel as well as between the hollow tubes and the second panel; a turning edge is arranged at at least one end of the hollow tubes. The aerial vehicle structure has the advantages of being small in self-weight, high in strength, stable in structure, high in impact resistance, capable of insulating sound and reducing noise, resistant to high temperature, corrosion and vibration, longin service life, capable of being carried and spliced and the like.

The invention discloses a detection sensor and a detection method for an angle of a rocker arm of a coal cutter. The sensor includes a base, a base top cover and a rocking bar; the base is connected with a revolving shaft, and the rocking bar is fixedly connected with the revolving shaft; one end of the rocking bar that is not fixedly connected with the revolving shaft is connected with a connection base; the top of the revolving shaft is provided with circular magnetic steel; the top of the base top cover is connected with a sensor protective shell; an inner cavity of the sensor protective shell is a circuit board installation cavity and a sensor circuit board is installed in the circuit board installation cavity; the sensor circuit board is integrated with a sensor circuit; and the sensor circuit includes a microprocessor module, a power supply module, a communication module, an angle sensor, and a display module. The method includes the following steps: 1. installing the sensor; and2. detecting the angle of the rocker arm of the coal cutter. The sensor is novel and reasonable in design, is convenient to implement, is good in work stability and reliability, is strong in anti-interference capability, is high in detection precision, provides guarantee for realization of automatic height adjustment of the coal cutter, is strong in practicability, and is convenient for popularization and usage.

The invention relates to a snow melting device of a railroad switch, which can fast melt the ice and the snow of switch positions automatically. The snow melting device of the railroad switch is characterized by being started as required by adopting the high-frequency electromagnetic heating principle and fast melting the accumulated snow of closed switch parts, an intelligent controller is connected with an electromagnetic heater through a high-frequency current generator and a high-frequency buried cable, and a temperature sensor is installed inside the electromagnetic heater fastened on the rail waist of a basic switch rail by connecting bolts through fixing holes on the basic railroad switch rail. The fast snow melting device of the railroad switch is conveniently installed without interfering with any other electrical systems of the railroad, can quickly heat and has overtemperature protection function, short work time, high efficiency of thermal energy conversion and snow melting, and obvious energy-saving effect without being influenced external environment climate. When accumulated snow or ice dreg is left in closed switch gaps, the snow melting procedure is started to ensure that the ice and the snow of the switch positions can be fast removed, so that a switch transforming device can be closely attached normally and the railroad transportation is normal.

The handling equipment of the present invention consists of conveyer, lifter and plurality of detecting units. Said control equipment consists of bogie control casing and plurality of control modules; site bus based network connected with input equipment consisting of button, scram switch, proximity switch, photoelectric switch travel switch and central control computer used for controlling delivery system through network. Said output equipment is based on EtherNet network, used for connecting slide contact line bogie control casing and plurality of controlling modules with monitor computer of EtherNet, displaying each bogie casing running status, operation parameter, automatically malfunction alarm, recording trouble point, through adopting decentralized control, centralized management, each production line central-controlled scheme, to realize complete monitoring and managing to production line. Said invention has advantages of safety, reliable, convenient for managing debugging.

The invention is a device for on-line monitoring the water content of the SF6 gas of high voltage switching electrical appliance, characterized in mainly comprising power supply module, three signal process amplifying circuits, multi-channel switch, MCU, communication switching circuit, and three temperature sensors, three pressure transducers and three humidity sensors for measuring for three SF6 gas rooms in A-B-C three-phase separately-acting high voltage switch, etc. The device has the following advantages: 1. it can realize on-line and remote monitoring; 2. every sensor has good output linearity and the humidity accuracy is above twice higher than the national standard; 3. it is applied to high frequency electric field and outdoor environments; 4. it largely reduce the effluence of SF6 gas, thus assuring the health of operating personnel and reducing environmental pollution, and having completely important significance.

The invention relates to a liquid-level sensor for integrated armoured continuous measurement. The liquid-level sensor comprises a tubular metal housing with a sealed front end; and a platinum filament into a loop and a thermocouple filament into a loop are arranged in an inner cavity of the tubular metal housing and extend axially along the tubular metal housing. The inner cavity of the tubular metal housing is filled with insulating materials. The platinum filament and the thermocouple filament are separated by the filled insulating materials. A sealed connecting head is arranged at the rear end of the tubular metal housing for sealing. The platinum filament and the thermocouple filament are connected with a multi-core shielding cable by a sealing connecting head electrically; and a platinum resistor is arranged at the sealing connecting head and is connected with the multi-core shielding cable electrically. According to the invention, reliability of the measurement performance of the liquid-level sensor is high and the operation power is low; and real-time and continuous measurement is carried out on a liquid level position and a liquid temperature.

An air-isolated 3D packing material with high resistance to squeeze, vibration and impact and excellent buffering effect is prepared from two thicker films and two narrower films through local heat sealing several times and folding several times to form multiple chambers containing air.

The invention discloses a three-dimensional sandwich structure fabric and a weaving method thereof. The three-dimensional sandwich structure fabric comprises an upper panel layer formed by interweaving at least one layer of upper layer warp yarns and weft yarns, a lower panel layer formed by interweaving at least one layer of lower layer warp yarns and weft yarns, and a core layer formed by interweaving at least one layer of intermediate layer warp yarns and weft yarns; and the upper panel layer and the lower panel layer are connected with the core layer by layer connection structures, and thefabric is formed by integral continuous weaving. The three-dimensional sandwich structure fabric provided by the invention has the advantages of diversified tissue structures, large fabric size control range, diversified cross-sectional shapes, strong designability, suitability for continuous weaving and the like; and a fabric composite reinforced material has the characteristics of high specificstrength, high specific rigidity, good structural stability, fatigue resistance, vibration resistance, sound and heat insulation and the like, and can be widely applied to the fields of aviation, aerospace, ships, automobiles, buildings and the like.