40results about How to "Solve job instability" patented technology

The resonance converter includes a stage of transfer circuit, a stage of diode rectification circuit, a stage of filtering and load circuit, a logic circuit, a drive and a power feedback circuit. When the stage of filtering and load circuit is in light load or zero load, the method feeds back energy to the stage of transfer circuit from the stage of filtering and load circuit.

The invention discloses a full-hydraulic drive open-type double-main-shaft numerical control underwater stitch welding equipment which comprises two sets of positioning and clamping mechanisms which are bilaterally symmetrically arranged; a movable supporting frame in sliding connection with the two sets of positioning and clamping mechanisms in the peripheral direction is arranged across the two sets of positioning and clamping mechanisms; a set of peripheral moving mechanism connected with the movable supporting frame is arranged between the two sets of positioning and clamping mechanisms; a cantilever beam in sliding connection with the movable supporting frame in the X-axis direction is arranged on the movable supporting frame; an auxiliary supporting frame is fixedly connected to the lower part of the cantilever end of the cantilever beam; the auxiliary supporting frame sleeves a pipe-like object to be welded in a hollow manner; the cantilever beam is driven an X-axis moving mechanism; the X-axis moving mechanism is mounted on the movable supporting frame; a B-axis swinging oil cylinder perpendicular to the X axis is mounted on the outer side of the cantilever end of the cantilever beam; the B-axis swinging oil cylinder drives a Z-direction main shaft head vertical to the B-axis swinging oil cylinder to swing. The equipment has the outstanding characteristics that the repairing range is large, the operation of main shafts is stable, the driving is precise and reliable, and the positioning and clamping mechanisms are excellent in adaptability.

The invention relates to the technical field of electronic circuits, and particularly discloses a semiconductor device and a control method thereof. The semiconductor device comprises an HIVC driving logic circuit, an upper bridge arm driving signal output circuit and a lower bridge arm driving signal output circuit; the upper bridge arm driving signal output circuit and the lower bridge arm driving signal output circuit are both electrically connected with the HIVC driving logic circuit, and the HIVC driving logic circuit comprises a PWM signal cache circuit, an upper bridge arm driving circuit, a lower bridge arm driving circuit and a fault logic control circuit; and the PWM signal cache circuit, the lower bridge arm driving circuit and the fault logic control circuit are electrically connected with the upper bridge arm driving circuit. The double-pulse trigger circuit is adopted, the problems that an RS trigger cannot record a signal sent by a single-pulse GEN due to the fact that the time for VS to recover from the negative state is long, and an HVIC works unstably are solved, and the use efficiency and stability of the HVIC are effectively improved.

The invention provides an amplitude limiting control circuit and method. The circuit comprises a resonance coil, a resonance capacitor, a switch and an inductor. The inductor is connected with the resonance coil in series after being connected with the switch in parallel to obtain a first circuit, and the first circuit is connected with the resonance capacitor in parallel or in series. When stable voltage needs to be provided, the switch is controlled to be switched on, the inductor is short-circuited, inductance of the circuit is changed, and the resonance state is further changed, stable voltage or current can be provided, and the problem that a driven resonance ring is instable in work is solved.

The invention relates to an intelligent high-efficient control apparatus that is applied to the mechanical field. With the apparatus, a problem that a relay can not work stably when the AC 220-V working voltage is not stable can be solved. According to the scheme, a control circuit using an AT89S52 single-chip microcomputer as a core sends a corresponding signal to drive a relay circuit, thereby deciding whether the relay works. On the basis of combination of a DS1302 clock chip and an AT24C02FLASH memory, information of the year, month, date, week, hour, minute, and second is displayed. Meanwhile, automatic adjustment and power-down protection of the information are completed and all information is displayed by a liquid crystal unit; and real-time control of the relay can be realized. The input interface is realized by three keys that are used for adjusting the data and time and setting on/off of the alarm and the time of the alarm. The alarm function is realized by a buzzer. The provided intelligent high-efficient control apparatus is mainly applied to control of a relay of mechanical processing equipment.

The invention relates to a fuel gas spray gun for a fuel non-reversing heat accumulation type combustor. The fuel gas spray gun comprises a spray gun body. An ignition fuel gas channel, an ignition combustion supporting air channel, a main fuel gas channel and a combustion supporting air channel are arranged in the spray gun body in sequence from inside to outside. The front end in the main fuel gas channel and the front end in the combustion supporting air channel are each provided with a contracted-expanded tube. A combustion stabilization hole plate is arranged in the combustion supporting air channel, provided with a premixed fuel hole and further provided with a flame detection electronic eye. The fuel gas spray gun for the fuel non-reversing heat accumulation type combustor has the advantages of being simple in structure and good in flame rigidity, saving fuel, being capable of achieving real-time monitoring and the like. The problem that a flame detection electronic eye cannot work stably due to the fact that an existing spray gun is poor in flame rigidity, flame lifting is caused and flame swings left and right is solved.

The invention discloses a rapid thermal sublimation printing device, which includes a device main body, a control panel, a printing motor and a dust removal motor. An ink cartridge is installed on the device main body, and the ink cartridge is embedded in the device main body. The rapid thermal sublimation printing device adopts It combines the advantages of other sublimation printing equipment and solves the problem of unreasonable design of the original sublimation printing equipment. Through the design of solar panels, the solar energy is converted into electrical energy for the control cabinet, which is energy-saving and environmentally friendly, reducing energy consumption. The heat dissipation fan and the temperature sensor work together. The temperature sensor controls the working intensity of the heat dissipation fan according to the ambient temperature in the printing equipment, which effectively solves the problem of unstable work caused by the poor heat dissipation of the original printing equipment. Since the printing equipment is equipped with a dust removal motor, The dust removal motor absorbs the dust on the printing paper through the dust suction port, thereby improving the quality of the printed product.

The invention discloses a reverse tricycle with switchable driving modes, the tricycle comprises a deflection and steering mechanism, a rear section tricycle frame, a driving wheel and two front wheels, the deflection and steering mechanism comprises a main beam, a left front arm assembly and a right front arm assembly, the left front arm assembly and the right front arm assembly are symmetrically arranged on the two sides of the main beam, and the left front arm assembly comprises a left upper rocker arm, a left lower rocker arm and a left steering knuckle structure; the right front arm assembly comprises a right upper rocker arm, a right lower rocker arm and a right steering knuckle structure, the main beam is of a hollow structure with a mounting hole, and a damping device penetrates through the mounting hole; the left upper rocker arm, the left lower rocker arm, the right upper rocker arm and the right lower rocker arm are of split structures; the main beam is connected with the rear section tricycle frame through a plurality of pile heads. The left rocker arm and the right rocker arm are coaxially hinged to the main beam respectively, full parallelism can be achieved during turning or inclining, vehicle driving is more stable, and the left rocker arm and the right rocker arm are independent gravity center deflection systems which do not interfere with each other; meanwhile, due to the left front arm assembly and the right front arm assembly which are in universal structural design, the production cost is greatly reduced.

The invention discloses a three-electrode metal-air battery testing mold with a positive electrode resisting to fluctuation interference. The mold comprises a counter electrode wire (1), a counter electrode rubber plug (2), a three-neck flask (3), a counter electrode (4), a reference electrode wire (5), a reference electrode rubber plug (6), a reference electrode (7), a working electrode wire (8),a ventilating guide pipe (9), a working electrode sleeve (10), a working electrode assembly (11), injected gas phase air bubbles (12) and electrolyte (13). With the traditional three-neck flask (3) being a mold basis, a working electrode resisting to liquid surface fluctuation caused by gas injection is designed based on the principle of floating, and the mold is simple in structure and capable of being operated at normal voltage to prevent the electrolyte from leaking under high voltage. Injected air can fully make contact with a reaction interface, so that testing efficiency is improved. Meanwhile, by adopting the designed working electrode sleeve, the counter electrode and the reference electrode are protected, and remaining gas can be further collected.

The invention provides an amplitude-limiting control circuit and a method. The amplitude-limiting control circuit comprises a resonance coil, a resonance capacitor, a switch and a transformer, wherein a primary coil of the transformer is serially connected with the switch; the resonance coil is serially connected with the primary coil of the transformer to form a first circuit; the first circuit is connected with the resonance capacitor in parallel or series. When the stable voltage needs to be provided, the switch is controlled to be conducted; the primary coil of the transformer is short-circuited, the inductance amount of the primary coil of the transformer is reduced, the inductance amount of the circuit is changed, and the resonance state can be changed. The amplitude-limiting control circuit has the advantages that the stable voltage or current can be provided, and the problem of instable working of driven resonance ring is solved.

The invention discloses a gas burner capable of enhancing ultraviolet light signal strength. The technical problems that due to an existing gas burner structure, the distance between a flame detectionprobe and a flame is too large, the ultraviolet light strength is too weak, and an ultraviolet light flame detector is not stable in work are solved. According to the technical scheme, the gas burnercomprises a burner shell (1), a gas channel (2) and an ultraviolet flame detection cooling air channel (3) and an ultraviolet flame detection probe (4). The ultraviolet flame detection cooling air channel (3) extends into the gas channel (2), a through hole communicating with the gas channel (2) is formed in the tail end of the ultraviolet flame detection cooling air channel (3), ultraviolet flame detection cooling air is led into the tail end of the ultraviolet flame detection cooling air channel (3) to be mixed with gas to be combusted, bright flames are formed, and the distance between theultraviolet flame detection probe (4) and the flame can be shortened.