14results about How to "Ensure safe work" patented technology

The invention relates to the technical field of bolter miner roller tooth holder assembly and repair, and discloses a bolter miner roller tooth holder assembly flexible automation device which comprises a supporting base, the supporting base is of a cuboid frame structure, a servo motor is installed in the supporting base, a coupler is installed on the upper portion of the servo motor, and a three-jaw chuck is installed on the upper portion of the coupler; a roller body is installed on the upper portion of the three-jaw chuck, and a metal stair is installed on the front side face of the supporting base. A transfer robot picks up a roller tooth holder and installs the roller tooth holder on a roller body, a binocular vision sensor monitors the relative position of the roller tooth holder and the roller body in real time to ensure the assembly precision, a triaxial pressure sensor monitors the assembly pressure in real time to ensure uniform stress, and a left monitor, a right monitor and an anti-collision inductive sensor monitor the working state in real time to ensure safe production. Data are automatically transmitted, efficiency is high, stability is high, the device is adaptive to installation of roller tooth holders of different models, and flexible automatic production is achieved.

The invention is suitable for the technical field of power adapters, and provides an overload adjustment method and device and a storage medium, and the overload adjustment method comprises the steps: obtaining the real-time temperature information of a power adapter; obtaining first working state information of the power adapter according to the real-time temperature information; if the first working state information meets a preset overload detection standard, acquiring real-time current information of each port; acquiring second working state information of each port according to the real-time current information of each port; if the second working state information of the port meets the preset overload adjustment standard, obtaining the maximum current information of the overload port and the rated current information of the overload port; and adjusting the current information of the overload port according to the maximum current information of the overload port, the rated current information of the overload port and a preset first overload adjustment formula. According to the scheme, the resource utilization efficiency of the multi-port power adapter can be improved, the resource distribution is optimized, and the safety and the stability of the power adapter are ensured.

The utility model belongs to the technical field of high-voltage switch damping, and relates to a cantilever damping structure of a high-voltage switch, which comprises a cantilever fixing flange, a connecting rod and a suspension object, the cantilever fixing flange is sleeved on an inner conductor of the high-voltage switch, a mounting hole is prefabricated on the cantilever fixing flange, one end of the connecting rod extends into the mounting hole, and the other end of the connecting rod extends into the suspension object. The other end is connected with the hanger; and an elastic damping structure is mounted in the mounting hole. According to the basic scheme, a connecting rod and a cantilever fixing flange are connected through an elastic damping structure, and the elastic damping structure is used for damping and protecting a cantilever structure. The cantilever damping structure of the high-voltage switch can ensure that the high-voltage switch with the cantilever damping structure can work safely in a high-voltage environment.

The application discloses a linear voltage stabilizing circuit based on NMOS regulating tube, comprising a bias voltage generating circuit, a voltage division feedback circuit, an oscillator circuit, a charge pump circuit and a pre-voltage stabilizing circuit, wherein the bias voltage is generated through the bias voltage generating circuit; the output voltage is divided to obtain a feedback voltage through the voltage division feedback circuit; the feedback voltage is amplified and then input to the oscillator circuit to generate an oscillation signal; the generated oscillation signal is input to the charge pump circuit; the gate voltage of the NMOS regulating tube is adjusted through the charge pump circuit, so as to obtain the output voltage; the pre-voltage stabilizing circuit widens the input voltage range, so that the linear voltage stabilizing circuit can work in a high input voltage environment; the linear voltage stabilizing circuit based on the NMOS regulating tube has the characteristics of wide input range and low voltage difference, fast transient response speed, and is fully compatible with the thin gate oxide process.

The utility model discloses a cable well descending guide frame for electric spark source micro-logging. The cable well descending guide frame comprises a fixed support and a rubber belt wheel rotationally connected to the fixed support. The fixing support comprises a base, a first supporting column and a second supporting column, wherein the first supporting column and the second supporting column are oppositely and fixedly arranged on the base. A through hole with the size larger than that of a well hole is formed in the base. A cable limiting groove is formed in the middle of the peripheral face of the rubber belt wheel in the circumferential direction. The electric spark probe is suitable for being used in electric spark source micro-logging construction, the problem of poor data quality caused by drifting of the electric spark probe can be effectively solved, the electric shock safety risk in the construction process can be eliminated, and the labor intensity of workers can be relieved.

The embodiment of the invention provides a constant-current charging system and a linear charging chip. The constant-current charging system comprises a charging circuit, a clamping module, a constant-current control module, a temperature control module and a reference voltage adjusting module, and the charging circuit provides charging current for a battery through a first transistor by using input voltage; the clamping module converts the first current and / or the second current into a control voltage, clamps the control voltage to a first reference voltage during charging, and outputs a control electrode voltage of the first transistor; the constant current control module is used for outputting a first current according to a feedback signal representing the charging current and a second reference voltage; the temperature control module is used for outputting a second current according to the junction temperature indication signal and a third reference voltage; and the reference voltage adjusting module is configured to adjust the voltage value of the second reference voltage according to the second current. The problems that in the prior art, when the junction temperature rises, the charging current cannot be decreased in time, the chip further heats, and safe work of the chip is affected are solved.

The application belongs to the technical field of the design of non-adjustable stator blades of a middle pressure compressor of an aero-engine, and particularly relates to an assembly structure of non-adjustable stator blades of a middle pressure compressor of an aero-engine, wherein a sealing and damping sheet is arranged in a lower edge plate mounting groove on the outer side of each arc segment of an inner ring of a stator, the gap between each non-adjustable stator blade segment and the arc segment is plugged by using a first-end and last-end insertion mode, so that the inward leakage of airflow can be reduced, the aerodynamic loss is reduced, and the relative bending between the two side edges of each sealing and damping sheet is V-shaped, the two side edges are in a pre-tightening form and are attached to the inner side of the lower edge plate of the non-adjustable stator blade segment and the outer side of the arc segment, so that the damping and vibration isolation capacity is good, the violent vibration can be avoided, and the safe operation of the compressor is ensured.

The invention relates to the technical field of nuts, and discloses automatic feeding and rivet nut in-mold riveting equipment which comprises a workbench, a supporting frame is fixedly connected to the back of the workbench, two vibration discs are installed at the top of the supporting frame, and a driving assembly is installed at the top of the supporting frame. According to the automatic feeding device, the vibration disc is arranged, the vibration disc is started, the vibration disc automatically conveys nuts into the feeding rail through vibration, the nuts are moved into the guide groove, automatic feeding is achieved, the adjusting air cylinder is arranged, after the nuts are moved into the guide groove, the adjusting air cylinder is started, the adjusting air cylinder drives the moving plate to move towards the back, and therefore the nuts can be automatically fed. When the nut is conveyed, the clamping groove is communicated with the guide groove, the vibration disc continues to convey the nut at the moment, the nut enters the guide groove, the adjusting air cylinder is reset, the clamping groove and the guide groove are staggered, meanwhile, the clamping groove is communicated with the discharging opening, the nut falls on the containing plate and is limited and controlled by the limiting rod, and transferring of the nut is achieved.

The utility model relates to the technical field of helicopter rotors, in particular to a damping structure for a helicopter, which comprises a connecting shaft, a damping bearing and a swing identification structure, the damping bearing is used for reducing vibration in the operation process of the helicopter, and the swing identification structure is used for identifying the centrifugal force of blades on the connecting shaft. The damping bearing comprises a shell, damping blades, a damping body and an inner shaft sleeve, the inner shaft sleeve is used for containing a rotating shaft of the blades, the rotating shaft is rotationally connected with the inner shaft sleeve, and the damping blades are concentrically and evenly distributed along the axis of the inner shaft sleeve. The problem that an existing shimmy damping structure for the helicopter is complex and not easy to maintain or replace is effectively solved. The damping bearing composed of the shell, the damping blade, the damping body, the inner shaft sleeve and the limiting ring is adopted, deflection generated by the blade can be swung under the action of the damping body and the damping blade, and vibration generated by the blade can be absorbed by the damping body in the swinging process.

The utility model relates to the technical field of lift, and disclose a lift maintenance accurate position locking device, including base, first scissor arm, second scissor arm, movable frame, lead screw and motor, the movable frame slidingly arranged in the upper surface of base, the motor fixedly connected in the upper surface of base, the lead screw fixedly connected in the output shaft end portion of motor and is screwed in the inner wall of movable frame, the top of base is equipped with the lifting platform, the fixed end of first scissor arm and second scissor arm located top is fixedly connected with the rotating lever simultaneously. The utility model provides the starting hydraulic cylinder, the piston rod of hydraulic cylinder stretches out, pushes the connecting plate movement through the push -pull rod and drives the sliding block to slide in the sliding slot on the lifting platform, the sliding block is driven the locking clamp block to move to the arc limit frame through the drive rod, finally locking clamp block is pressed on the side wall of arc limit frame, locking the lifting platform in the current position, ensure that the maintenance work is carried out safely, guarantee stability.

The application discloses a kind of adjustable oil tank overflow interface components and oil tank expansion space size adjusting method, belong to aero-engine lubrication (oil) system design technical field. Overflow interface components are mainly composed of overflow joint, overflow elbow, sealing ring, bushing, bolt, locking type has broken slot steel wire screw, mounting seat etc..The application can control the size of expansion space in oil tank according to the actual demand of oil tank, control the overflow of liquid in oil tank by rotating overflow elbow, prevent oil leakage caused by excessive oiling, maintain system pressure balance, and automatically discharge in abnormal conditions.The application is applied to aero-engine oil system oil tank, with small volume, light weight, high integration and good maintenance, etc., can realize the role of oil tank adjusting expansion space.

The invention belongs to the technical field of vacuum heaters, and discloses a vacuum heater internal temperature detection system which comprises a controller. A power supply module; a thermocouple assembly; the plurality of temperature sensors are respectively arranged on the heating cavity and the carrying table; and the temperature detector is arranged on the shell and is used for detecting the temperature change of the shell. The invention discloses a method for displaying the internal temperature of a vacuum heater. The method comprises the following steps: S1, installing a temperature sensor and an infrared temperature detector; s2, a thermocouple assembly is installed on the sealing door plate; s3, if the carrier plate and the carrier table are not loaded with components, heating after being electrified, repeating for three times, and taking an average value as a reference temperature feature point; and S4, electrifying and heating, displaying the temperature in real time by a display screen, and recording the historical change of the temperature. According to the invention, the detection accuracy is ensured, and meanwhile, the temperature change measurement on the shell is also added, so that the safety work is greatly ensured.

The invention relates to the technical field of hydrogen and oxygen production through water electrolysis, in particular to a device for producing hydrogen and oxygen through alkaline water electrolysis. Comprising an electrolytic cell, an oxygen gas-liquid separator and a hydrogen gas-liquid separator, a gas outlet of the oxygen gas-liquid separator is connected with the oxygen storage device; a gas outlet of the hydrogen gas-liquid separator is connected with the hydrogen storage device; a flash tank is arranged between liquid outlets of the oxygen gas-liquid separator and the hydrogen gas-liquid separator, a pressure release valve is arranged at the top of the flash tank, and a dissolved oxyhydrogen gas sensor and a PLC (Programmable Logic Controller) connected with the dissolved oxyhydrogen gas sensor and the pressure release valve are arranged at the bottom of the flash tank; the PLC judges whether dissolved oxyhydrogen gas in the flash tank reaches a threshold value or not according to data collected by the dissolved oxyhydrogen gas sensor, and controls the pressure release valve to be opened; a buffer tank is arranged at a liquid outlet of the flash tank and is communicated with a liquid inlet of the electrolytic bath. The concentration of dissolved hydrogen and dissolved oxygen in the alkaline solution can be kept below a safety threshold value, and safe work of the system can be maintained.

The invention relates to the field of blend oil production, in particular to a blend oil production process DCS (Distributed Control System) decentralized control system, which comprises a blend oil production process module used for executing production and processing of blend oil; the DCS control system module is used for performing decentralized control on each blend oil production process module; the DCS control system module comprises a central control module and a plurality of sub-control modules, the sub-control modules are used for independently controlling all the blend oil production process modules, and the central control module directly completes configuration with all the sub-control modules based on stored structured HAZOP deviation analysis records and LOPA grading results. The DCS control system adopts a distributed structure, a plurality of system components are distributed on an open redundant communication network, and the system components are provided with independent function processors, have maintenance and self-diagnosis functions, and can perform early warning to ensure the safe work of the blend oil production process.