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

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 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 storage battery which comprises monomer batteries provided with internal threads and bolts, a battery fixing frame, a parallel connection net, confluence pieces and a battery positive and negative pole fixing frame, wherein the series connection of the batteries is realized in a threaded connection manner, the parallel connection of the batteries is realized through the parallel connection net, and the battery fixing frame, the parallel connection net and the confluence pieces are provided with heat dissipation holes; and gaps are formed among the monomer batteries, and heat dissipation is directly carried out on the batteries through the gaps and the heat dissipation holes. The storage battery realizes a battery pack with high voltage and high capacity through a series-parallel connection combination of minitype column batteries, is beneficial to installation, the maintenance and disassembly of the battery pack and is good in the heat dissipation property; and the whole operation reliability of the battery pack is improved, and the storage battery is suitable for the application of large-scale power systems such as electric vehicles and stored energy.

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 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.

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.

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 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.

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.