439results about How to "Stable job" patented technology

The invention relates to a robot joint based on harmonic reducers, which comprises a motor, an encoder connected with the motor, a harmonic reducer connected with a rotor of the motor, and a transmission mechanism connected with the harmonic reducer; wherein, the harmonic reducer comprises a wave generator, a flexible wheel outside the wave generator, a fixed steel wheel outside the flexible wheel and a rotary steel wheel; the transmission mechanism comprises a housing fixedly connected with the fixed steel wheel of the harmonic reducer and an end cover fixedly connected with the rotary steel wheel of the harmonic reducer; a bearing is arranged between the housing and the end cover. The robot joint has the advantages of high drive ratio, high reliability, compact structure, ability to substitute the robot joint in the prior art, gradual decrease with the size of the harmonic reducer, higher applicability to joint transmission of miniature robots, and wide application prospect.

The invention discloses an LED lamp which comprises an LED chip, a heat dissipation base and a lampshade, wherein the lampshade is fixed on the heat dissipation base, the LED chip is positioned in the lampshade, and the lampshade is filled with the heat conduction gas. The LED lamp promotes the heat dissipation property by a large extent and can work better at lower temperature.

The invention discloses a message processing method which comprises the following steps: classifying messages that need to be sent to a central processing unit according to the characteristics of the messages; marking the classified messages with different priorities according to the importance degrees of the messages, then sending the messages after being marked with the priorities into an array of which the priority the same as that of the messages, and carrying out multilevel rate-limiting processing for the array. The invention also discloses a message processing device. By adopting of the invention, the central processing unit can run normally, and then the stable work of network equipment is further maintained.

This invention relates to mixture power mobile load compound power device, which comprises large power accumulator motor inverter, motor, wherein; the control ends of motor and inverter are separately connected to the car controller through power controller, motor controller and motor controller. It also comprises super capacitor paralleled between the motor inverter and the accumulator through on double direction DC/AC converter, wherein; the super capacitor and double DC/AC converter control ends are separately connected to the power controller.

The invention relates to a mop. The lower end of a mop rod is hinged with a mophead with a wiping object; the mop rod at least comprises an inner rod and an outer rod; the inner rod and the outer rod can rotate relatively and make the mop rod shortened or lengthened by the sleeving connection; the lower end of either of the inner rod and the outer rod is connected with the mophead; a driving mechanism is arranged between the inner rod and the outer rod; the driving mechanism drives the rod connected with the mophead and the mophead to rotate and comprises a screw rod piece; a thread or an opening matched with the screw rod piece is formed in a rotating sleeve; a pull-off preventing mechanism is arranged between the inner rod and the outer rod and can effectively prevent the inner rod and the outer rod from being separated from each other; and the pull-off preventing mechanism works stably and can effectively reduce friction among the components to make the operation more labor-saving and improve the dehydrating effect of the mop.

The invention provides a method and device for improving the forming quality of laser additive manufacturing thin-wall parts. The device comprises a movable platform system, a laser metal deposition system, an auxiliary forming system, an active cooling system and a central control system. According to the forming method, when the laser metal deposition system conducts cladding forming on the thin-wall parts, the auxiliary forming system controls the thin-wall thicknesses and the forming directions in real time; when the multiple layers of the thin-wall parts are deposited, the problem of molten pool flowing caused by interlayer stacking can be solved, and the problem that the surface roughness in the thin-wall forming process is excessively large due to interlayer stacking is solved, andthe thickness-changeable thin wall, the flat thin wall and the curved thin wall are machined; and meanwhile, the active cooling system cools deposited layers in real time. The problems that the quality of the laser cladding formed surfaces is low; during continuous multiplayer depositing, the temperature is increased, therefore, thermal stress of the deposited layers is accumulated, consequently the deposited layers are cracked, and microstructures of the deposited layers are coarse; and the forming efficiency is low due to slow cooling are solved, and high-quality and efficient forming of thecomplex thin-wall parts is achieved.

The invention discloses a method for generating power by high efficient floating type wave energy by rubbing. A device adopting the method comprises an anchor cable system, a floating body, an upper rod pump, a lower rod pump, a rubbing support frame, a truss, a hydraulic reservoir, a generator, a hydraulic motor, a hydraulic system accumulator, a high-pressure oil tube and an oil return tube. The anchor cable system flexibly positions the whole device to float in the working sea area; the floating body is forced to sway relative to the rubbing support frame and the truss due to wave action so that the distance between the hinge points of both ends of the upper rod pump and the lower rod pump connected by a hinge of the floating body changes, thus promoting the upper rod pump and the lower rod pump to work. High pressure liquid from the two rod pumps enters the hydraulic system accumulator via the high-pressure oil tube for energy storage and pressure regulation, and then enters the hydraulic motor to drive the generator to rotate so as to generate power.

The invention relates to a door body of a refrigeration and freezing plant. The door body comprises a door body assembly, a screen assembly and a glass assembly, wherein the screen assembly and the glass assembly are installed on the door body assembly; the door body assembly comprises a front door lining, a back door lining and a door frame used for fixing the front door lining and the back door lining, and a foaming layer is formed between the front door lining and the back door lining; the front door lining sinks in the direction of the back door lining to form a first containing space, the screen assembly is contained in the first containing space, and a radiating cavity is formed between the screen assembly and the front door lining; and a radiating channel is formed between the glass assembly and the front door lining and is communicated with the radiating cavity to emit hot air. The radiating cavity is formed between the screen assembly and the front door lining, heat generated by a big screen in the working process can be emitted through the radiating cavity and the radiating channel, and work stability of the big screen is kept.

The invention relates to rail accessories, in particular to an elastic rail fixing device. The elastic rail fixing device is disposed on a base of a sleeper, fixedly connected with the sleeper through anchoring bolts and characterized by further comprising a guide component and a vertical support element. The guide component comprises guide elements and a guide supports, wherein the guide elements are disposed on two sides of a rail wed of a steel rail, and the guided elements are clamped by the guide supports. Each guide element comprises at least part of elastic high polymer material or/and a metal spring. Relative motion between the steel rail and the guide supports is achieved by the aid of elastic deformation of the guide elements. Transverse rigidity, along the steel rail, of each guide element is at least 2.5 times higher than vertical rigidity, along the steel rail, of each guide element. Vertical rigidity of the vertical support element is not lower than that of each guide element. The elastic rail fixing device has the advantages that vertical rigidity is guaranteed while high transverse rigidity is achieved, under the circumstance that vibration isolation effect is guaranteed, rail gauge variation is smaller, transverse vibration of wheel tracks is smaller, transverse shaking of trains is smaller, mutual transverse sliding between the wheel tracks is smaller, abrasion is low, and comfortableness and safety of trains are higher.

A fault direction judgment method based on positive-sequence polarization voltage phase comparison includes the steps that the measuring voltage Um, the measuring current Im and the bus positive-sequence voltage Um1 at the installation position of a directional element are respectively acquired after a smart distribution network breaks down; a working voltage Uop is set; the direction of the fault is judged. The fault direction judgment method has the advantages that due to limitation of the minimum value, it can be guaranteed that correct actions can be carried out when a short circuit occurs at the tail end of the protection range due to the resistance smaller than the largest transition resistance, and the reverse-direction fault can be judged with high reliability. The fault direction judgment method has the advantages that a voltage dead area does not exist, the capacity for resisting transition resistance is high, the working characteristics are stable, and influences cannot be caused by large changes of the operating mode of a power distribution network system or obvious difference between distributed power supplies or complex load types or other working conditions.

The invention discloses a control system for a three-dimensional parking garage. The control system comprises a PLC, wherein the input end of the PLC is connected with a scram button, a travel switch and an optoelectronic switch; the output end of the PLC is connected with a driver and an audible and visual alarm; a lifting and traverse moving motor is further connected with the driver, and mounted on each parking space; the PLC is further connected with a human-computer interface which is connected with a recognition system. The control system provided by the invention is stable in operation and high in reliability, and adopts a remote control technology and an automatic recognition system; when a car is parked safely, the parking garage can park the car at an appropriate position automatically, and unmanned operation can be realized; the management of the whole parking garage can be brought into a building automatic system, and network is accessed, so that a comprehensive computer management grid information system is formed, and unmanned management of the three-dimensional parking garage can be realized.

The invention discloses a damp-proof corrosion-resistant inflaming-retarding electric power communication cable which comprises a conductor and an insulating layer. A plurality of cable cores are arranged in the conductor which is arranged in a PVC plastic connecting rod, and a gap between the PVC plastic connecting rod and the conductor is filled with a waterproof filling layer; aluminum alloy hoses are arranged at the center of the PVC plastic connecting rod, and the insulating layer wraps the PVC plastic connecting rod in an extruding mode; a gap between the insulating layer and the PVC plastic connecting rod is filled with fillings; a shielding layer tightly wraps the insulating layer in an extruding mode; a reinforcement layer, a stainless steel armor layer and an aluminum-polythene adhesive protection layer sequentially tightly wrap the shielding layer in an extruding mode from inside to outside; an aluminum alloy interlocked armor barrier layer wraps the aluminum-polythene adhesive protection layer in an extruding mode; a plurality of current guide cores are evenly arranged in the aluminum alloy interlocked armor barrier layer; an inner sheath and an outer sheath are sequentially arranged outside the aluminum alloy interlocked armor barrier layer. The damp-proof corrosion-resistant inflaming-retarding electric power communication cable has the advantages of being good in damp-proof effect, good in corrosion resistance, long in service life, and the like.

The invention discloses a disposable high speed turbine dental drill handpiece which comprises a head and a handle, wherein, the head consists of a head shell, a connecting shaft impeller in the head shell and a rolling bearing arranged between the connecting shaft impeller and the head shell; an aqueous vapor channel in the handle leading to the rolling bearing at the head is common steel material; the head shell, the connecting shaft impeller and the handle are plastic; the rolling bearing comprises an upper rolling bearing and a lower rolling bearing, wherein, the outer surface of the upper rolling bearing is a pyramidal structural surface; a gasket is arranged between the pyramidal structural surface of the upper rolling bearing and a inverted pyramidal structural surface of the head shell; the structure of the corresponding lower rolling bearing, the gasket and the head shell is symmetrical with the structure of the upper rolling bearing; the head shell is cemented by a head shell body and a head shell cover; the physical neck of the head shell body is internally provided with an air intake channel and a return air channel which lead to the interior of the head shell and is also provided with a water spraying channel leading to the lower part of the head; the tail end of the handle is an aqueous vapor quick-connect plug; the physical neck of the head shell body is cemented with the head end of the physical handle; the air intake channel, the return air channel and the water spraying channel in the physical neck of the head shell body and the head end of the physical handle are correspondingly communicated with each other. The disposable high speed turbine dental drill handpiece lowers cost.

The invention relates to a permanent magnet direct current motor comprising: the inside of a shell of the motor is provided with a stator and a rotor, a stator core is provided with a winding coil, a rotor rotating shaft is provided with a magnetic core folded by discoid copper sheets. The periphery of the magnetic core is fixed with a rotor magnetic tile and the motor is provided with sensor magnetic steel and a position sensing element of a hall element. The sensor magnetic steel is arranged in a magnetic steel seat which is fixed on the motor rotating shaft extending out of an end cover and the sensor magnetic steel and the hall element are arranged in a cavity consisting of the end cover and a dust cover. As the magnetic steel seat is fixed on the motor rotating shaft extending out of the end cover, the permanent magnet DC motor is not interfered by the outside, so an electronic reversing signal of the motor is not interfered by the machining precision of the rotor and the armature current. The position sensing element is only influenced by the environment temperature, thereby leading the motor to work more stably.

A monitor system for monitoring a molding machine that includes a vertically-movable supporting frame, a pattern carrier on which a pattern is placed, a flask placed on a leveling frame, a sand hopper provided with an optional an air-jet chamber, sand-charging nozzles disposed around a plurality of squeeze feet that is disposed at a lower end of the sand hopper, and a filling frame connected to filling-frame cylinders and surrounding the squeeze feet and the sand-charging nozzles from their outside, the filling frame to be placed on the flask when lowered, comprising at least one sensor connected to the molding machine, for detecting an attribute of the molding sand as required and data analyzing monitor means connected to the sensor, for receiving data that correspond to the attribute detected by the sensor and analyzing the attribute and displaying the results of the analysis.

The invention discloses a secondary air injection high-efficiency ultralow temperature heat pump unit which comprises a compressor, a condenser, a liquid storage pot, a thermostatic expansion valve, an evaporator and a gas-liquid separator. All assemblies are connected in sequence to form a loop, and a compressor air supplement unit is arranged between the compressor and the liquid storage pot. The air supplement unit comprises an injection expansion valve, an economizer, a first solenoid valve and a second solenoid valve, wherein the two solenoid valves are connected in parallel, the first solenoid valve is directly connected with the compressor, the second solenoid valve is successively connected with the injection expansion valve and the economizer in series, and the economizer is connected with the compressor. In the invention, the technology of compensating air for a compressor in the course of compression is adopted, the normal operating temperature range of the compressor is greatly widened, and the system is stable and reliable and has obvious energy saving effect.

The invention provides a heat dissipation structure of a high-definition vidicon. The vidicon comprises a shell, a vidicon front panel, a CS adapter ring, a charge coupled device (CCD) chip, a CCD circuit board, an optical filter mounting plate, a vidicon mainboard, a vidicon rear panel and a CCD heating panel, wherein the CCD heating panel is of a metal strip structure; the CCD heating panel is inserted into a gap which is fixed between the CCD chip and the CCD circuit board; the back of the CCD chip is closely adhered to the CCD heating panel; and parts extending out of the two ends of the CCD heating panel are adhered to and contacted with the vidicon front panel respectively. Quantity of heat generated by the CCD chip in working can be directly conducted to the vidicon front panel by the CCD heating panel, and then the vidicon front panel performs heat exchange with the outside, so that the quantity of heat generated by the CCD chip can be dissipated outside the shell, thus avoiding the temperature of the CCD chip from being overhigh in the working, thereby ensuring that the high-definition vidicon can stably work in the long-term monitoring operation.

The invention discloses a high-temperature-resistant composite diaphragm, a preparation method thereof and a lithium battery. The high-temperature-resistant composite diaphragm comprises a base membrane with the thickness of 1-50 microns and a coating material with the thickness of 0.5-50 microns, wherein the coating material is coated on the base film or coated on the base membrane and permeatesinto the base membrane; the coating material comprises [86wt%-99.98wt%] of a high-temperature-resistant material, [0.01wt%-10wt%] of a binder, (0wt%-2wt%] of a dispersing agent and (0wt%-2wt%] of an auxiliary agent; the high-temperature-resistant material is a material which stably exists at the temperature of 100-1,000 DEG C and does not cause phase transformation; the particle size of the coating material is between 10 nm and 10 microns, and the coating material is uniformly distributed, hierarchically distributed, gradiently distributed or non-uniformly distributed.

The invention relates to a flexible suspension lifting and translating device for X-ray imaging and shooting detection of a large-scale tested workpiece. The device has the structures as follows: four light-weight conveyer belts with the same length and width are respectively winded on four scrolls with the same diameter; four scrolls are arranged on the same horizontal line shaped like a Chinese character kou; bevel gears with the same gear number are meshed with each other at 90 degrees; a driving scroll is connected with a reducer motor and is sequentially meshed with other three driven scrolls through the bevel gear; one end of the light-weight conveyer belt is retracted on the four scrolls and the other end is connected with a ray tube unit and an X-ray tube device; a cross beam and a rail are arranged close to a ceiling of a flaw detection chamber; crossbeam running gears are arranged at both ends of the crossbeam; and the rail is fixed on a wall through a bracket. Four light-weight conveyer belt retraction mechanisms ensure smooth declination of the X-ray tube or an image enhancer and balance of translation in the axle-x and axle-y directions, are beneficial to improving the X-ray imaging precision, and have small volume, reasonable moving orbit and reduced space.

The invention provides a charging prompting method for electronic equipment and the electronic equipment. The charging prompting method comprises the steps that when a wireless charging apparatus is coupled with the electronic equipment, the magnetic field strength in each of multiple predetermined points of the electronic equipment is detected independently; a first relative position relation between the electronic equipment and the wireless charging apparatus is calculated based on the detected multiple magnetic field strengths; and prompting is carried out for a user of the electronic equipment based on the first relative position relation.

The invention relates to the technical field of green energy obtaining, and discloses a DC generator based on a moving Schottky junction, the DC generator is composed of a semiconductor substrate layer and a conductive thin film layer. A preparation method includes the following steps: a first electrode is manufactured on the back of a semiconductor substrate material. And then a second electrodeis manufactured on a flexible conductive film material; then the flexible conductive thin film material is laminated on the surface of the semiconductor substrate and moved to be in contact with eachother so as to obtain the DC generator based on a moving Schottky heterojunction, and the DC signal can be obtained by movement relative to each other. The generator based on the moving Schottky junction of the invention utilizes the drift charge of the Schottky junction region to be directionally separated under a built-in electric field, and can convert the external mechanical energy into directcurrent, thereby providing a renewable green clean energy for various electronic equipment. Piezoelectric materials are not needed, and the device structure and process are simple.

The invention discloses a light emitting diode lamp with a radiating structure, which comprises a light emitting diode module and a radiator that is used for paste-arranging and cooling the light emitting diode module, and the radiator comprises a cylindrical body that is contacted with the light emitting diode module, a plurality of radiating fins are arranged on an outer surface of the body, lateral borders of the radiating fins are mutually connected, and consequently a plurality of air channels that extend along the axial direction of the body are formed between the radiating fins surrounding the body. The light emitting diode lamp carries out good radiation on the light emitting diode module by conducting air flow through the radiating structure.

The invention discloses an excitation system full-function-performance simulation system based on an MATLAB. The system comprises an electricity generator, auxiliary power, a main transformer, a short trouble setting unit, a circuit, an AVR unit, a PSS unit, a machine end voltage effective value computing module, a stator overcurrent limiting unit, a rotor overcurrent limiting unit and a low-excitation limiting unit. Some parameters of the electricity generator are input to the AVR unit. The AVR unit outputs adjusted electricity generator voltages to the electricity generator. Output of the electricity generator is connected to auxiliary power and the main transformer. Output of the main transformer is connected with a power grid through the circuit. Output of the main transformer is connected with the short trouble setting unit. The stator overcurrent limiting unit, the rotor overcurrent limiting unit and the low-excitation limiting unit carry out control processing on the parameters of the electricity generator. According to the system, an excitation system simulation model which is complete in function and practical is established first through the MATLAB, the connecting modes of the units are flexible and selectable and strong in representativeness, and simulation requirements of excitation regulators of different structures can be met.

The invention relates to a temperature difference generator utilizing the residual heat of the tail gas of an automobile, belonging to the technical field of regenerative energy. The device comprises a heat collection device, temperature difference power generation pieces and a cooling water tank. The connection of the device is in such a way that the surface of the heat collection device is provided with at least one temperature difference power generation piece, the hot end of each temperature difference power generation piece is connected with the side face of the heat collection device, and the cold end of each temperature difference power generation piece is connected with the cooling water tank. The temperature difference generator has the advantages that the heat collection device is adopted to carry out the heat collection of the residual heat of the tail gas and provide high temperature for the temperature difference power generation pieces, the cooling water tank is used for carrying out heat radiation on the cold ends of the temperature difference power generation pieces, the effect of heat radiation is good, the heat radiation is free from the influence of the outside temperature and seasonal variations, the temperature of the cold ends of the temperature difference power generation pieces keeps constant, and the temperature difference power generation pieces have stable work, simple structure, low cost, convenient use, stable performance and high energy production efficiency.

The invention provides a sensor and a sensing method based on electrostatic induction. The sensor comprises a sensing component, wherein the sensing component is composed of a first electrode layer and a second electrode layer matched with the first electrode layer, and the first electrode layer and the second electrode layer are arranged at an interval and are electrically connected with each other. When a detected object moves relative to the first electrode layer of the sensing component, the electric potential of electric charge carried by the sensing component on the first electrode layer is enabled to be changed, and the electric charge flows between the first electrode layer and the second electrode layer under the effect of the electrostatic induction so as to form current. The sensor provided by the invention is simple in structure, and can sense movement of various materials of detected objects without being provided with an external power supply.

The invention provides a manipulator, and belongs to the technical field of manipulators. The technical problems such as complicated structures and high maintenance costs of existing manipulators aresolved. The manipulator includes two symmetrical manipulator sliding blocks and a rectangular sliding seat, the upper part of the sliding seat is provided with a driving sliding block, the manipulatorsliding blocks pass through corresponding through grooves on the sliding seat, and the lower ends of the manipulator sliding blocks are provided with claws correspondingly; and the upper ends of themanipulator sliding blocks are provided with big-end-down tapered wedges correspondingly, the driving sliding block is provided with two guiding grooves matched with the tapered wedges, the tapered wedges extend into the corresponding guiding grooves, and up and down movement of the driving sliding block can drive the manipulator sliding blocks to slide left and right along the sliding seat. According to the manipulator, through cooperation of the tapered wedges and the driving sliding block, up and down movement of the driving sliding block is converted into left and right movement of the manipulator sliding blocks, clamping of workpieces is realized, the structure is simple, and operation is stable.

The invention discloses a parking mechanism of an automatic transmission for a vehicle, which comprises a parking ratchet wheel arranged on an output shaft of the transmission, and a parking pawl meshed with the parking ratchet wheel, wherein one end of the parking pawl is hinged on a transmission shell, and the other end of the parking pawl is arranged on one end of a parking locking rod; the end of the parking rocking rod is supported through a support on the transmission shell; the other end of the parking rocking rod is hinged with one end of a gear rail plate; the gear rail plate is fixedly connected with a gear shift shaft; a cam is arranged on a contact end of the parking locking rod and the parking pawl; when a park gear is shifted, a ligature connecting a first contact point between the parking pawl and the cam with the contact point between the support and the cam is vertical to an axial line of the parking locking rod; and when a reverse gear close to the park gear is shifted, the parking pawl is in contact with a transition surface on the cam. The parking mechanism can be smoothly shifted and has good shift quality, and the risk of dislocating of the park gear after the park gear is shifted is avoided.

The invention discloses a cable traction device for power construction. The cable traction device comprises traction device body composed of a traction mechanism and an elevation mechanism, the elevation mechanism is composed of a pedestal, a slide rail and first and second poles, the bottom of the pedestal is rotationally connected with rollers. A worm gear and a worm are arranged, a motor can provide power for a driving wheel, so that the traction device works smoothly with relatively low impact force, vibration and noise in the working process, and the service life of the traction device isimproved; driving and driven wheels are arranged and are used to draw cable via extruded rolling, the working efficiency is higher, use is more convenient, and the problem of low working efficiency of a present traction device is solved; and the elevation mechanism is arranged, so that the traction device can adjust the height randomly, and the traction device is more flexible and much more practical.

The invention discloses a pot seedling wide and narrow row spacing transplanting mechanism adopting a seven non-standardize cone bevel gear planetary gear train. Identical gear boxes are fixed onto two ends of the central shaft of a transmission box; the central axis is sleeved with a central non-conic bevel gear of each gear box; each gear box is fixedly connected with the transmission box through a castellated flange; each central non-conic bevel gear is meshed with a first central non-conic bevel gear fixedly mounted on the central shaft, and drives a second central non-conic bevel gear coaxially mounted with the first central non-conic bevel gear to rotate; the second central non-conic bevel gear is meshed with a planetary non-conic bevel gear fixedly mounted on a planetary shaft; the shaft angle between the central shafts and the shaft angle between the planetary shaft and the central shaft are both sharp angles; after a seedling is taken by a seedling taking claw on a transplanting arm, the seedling pushing point deflects from the seedling taking point leftwards or rightwards for a certain distance to realize pot seedling wide and narrow row spacing transplanting. The overall gear ratio curve of a secondary gear mesh has two peaks which facilitate the forming of an '8'-shaped or sharp-angle-shaped spatial motion track for the seedling taking claw.

The invention is appropriate for the detection field of an LED (Light Emitting Diode) nixie tube, and provides a detection device and method of the LED nixie tube. According to the embodiment of the invention, with the adoption of the LED nixie tube detection device which comprises a central processing module, one or more driving detection modules which are same with position selecting ends of the detected LED nixie tube in quantity and a detection result display module, the central processing module is matched with the one or more driving detection modules to judge the polarity, the eligibility and the plugging condition of pin positions for the detected LED nixie tube, so that the device is simple in circuit structure and low in cost. The one or more driving detection modules are driven by a constant current source, so that the LED nixie tube works stably in the detection process and the service life of the nixie tube is not affected. In addition, result information is further displayed and judged through the detection result display module for the convenience of detection personnel to obtain the detection result intuitively, so that the detection efficiency is greatly improved.