373results about How to "Easy inspection and maintenance" patented technology

An object of the invention is to embody a small and inexpensive passage selector, which can be applied by commonly using an index device even if the number of detector passages is changed, and which is easy to make inspection and maintenance. The passage selector of a reactor in-core nuclear-measuring apparatus of the invention includes: a drive motor; an index device that is driven by the drive motor and that makes a rotary output of a predetermined index number; a central rotating shaft that is driven to rotate by the index device and that causes a passage selecting guide tube to be located in opposition to any detector passage; and a speed-increasing and decreasing device that is interposed between an output shaft of the index device and the central rotating shaft, and that adjusts the index number of the central rotating shaft.

The invention provides an electromobile and a high-voltage device fault detection system and method for the same. The high-voltage device fault detection system comprises multiple high-voltage devices respectively comprising respective high-voltage interlocking monitors, a low-voltage signal line, a battery management system or a vehicle control unit and an instrument, the low-voltage signal line is serially connected among the high-voltage interlocking monitors of the high-voltage devices, the battery management system or the vehicle control unit is connected with at least one of the high-voltage devices through a controller area network connecting line and used for receiving high-voltage interlocking state information provided by the high-voltage interlocking monitors of the high-voltage devices from the high-voltage devices, and the instrument is used for displaying the high-voltage interlocking state information. After high-voltage danger appears, when a user expects to detect and find out a position with high-voltage interlocking fault, the position with the fault can be quickly located through display of the instrument without checking high-voltage wiring harnesses and the high-voltage devices one by one, so that convenience is brought to quick maintenance.

The invention discloses a method and a device using ocean wave to generate electricity. An impeller is arranged on a slack water layer at a deep position of the sea level, and the impeller can be rotated around the center after being impacted by stream. A floating body is arranged on the sea level; the floating body is fixedly connected with a generator; a transmission connecting rod is arranged between the generator and the impeller; both ends of the transmission connecting rod are respectively connected with the impeller and the generator, and kinetic energy for rotating the impeller is transmitted into the generator to be transformed into electric energy to realize power generation by a transmission device. The invention aims to provide the method and device, and uses the ocean wave to generate electricity. A dynamic force device is arranged below the sea level, and a power generation device is floated on the sea level in the invention. The invention has the advantages of simple structure, convenient detection and maintenance, long service life and high transfer efficiency.

The invention provides a combined sugarcane harvester, which relates to the technical field of agricultural machinery. The harvester comprises a gantry front axle device connected with the front end of a frame, two groups of separation mechanisms which are symmetrically arranged on the two sides in front of a front wheel of the sugarcane harvester, a header device which is located on the back side of the gantry front axle device and is connected with the lower side of a harvester cab, a channel device which is connected to the back end of the header device and is fixed on the frame, and an engine placed on the frame, wherein a channel of the channel device is enclosed by two channel side plates and is internally provided with a leaf stripping and tail cutting device, a speed limiting device and a reverse-rotation leaf discharging device; the engine is connected with a transfer case assembly; the power output end of the transfer case assembly is respectively connected with transmission shafts I and II; the transmission shaft I is used for transferring power to a roller driving shaft of the leaf stripping and tail cutting device through a tapered power-input gear box located outside the channel side plate; the roller driving shaft is used for transferring the power to the other devices in the channel through a channel transmission device; and the transmission shaft II is used for transferring the power to a rear axle assembly through a speed changing box.

The invention discloses a thyristor valve block of a static var compensator (SVC), which comprises one group or more than one group of mutually-tandem anti-parallel thyristor unit modules, resistance-capacitance protection unit modules, plate unit modules, frames and insulators, wherein the anti-parallel thyristor unit modules, the resistance-capacitance protection unit modules and the plate unitmodules are fixed on the frames; each resistance-capacitance protection unit module comprises a capacitor and a resistor; the insulators are fixed on the frames; the insulators are used for supporting and fixing the frame of the thyristor valve block; and each anti-parallel thyristor unit module comprises a thyristor and a profile self-heat dissipation structure, wherein the thyristor and the profile self-heat dissipation structure are pressed and combined together, and the heat dissipation of the thyristor is realized by heat conduction and convection. The thyristor valve block described by the implementation mode in the invention has the advantages of small volume, simple structure assembly and few hidden troubles and is easy to detect and maintain, the valve block can determine the tandem quantity according to the actual capacity conditions of users, and the self-heat dissipation mode is especially suitable for the SVC with medium or small capacity.

The invention discloses a deformation parameter testing test bench for a deformation wing. According to the test bench, a digital infrared distance measurement sensor is utilized for non-contact distance measurement, the displacement values of different positions of the deformation wing are measured and input into a computer, and software is utilized for interpolation to obtain a deformation curveof the test wing; a workpiece is not in contact in the measurement process, and the surface of the workpiece cannot be scratched. Driving force for driving the deformation of the wing is measured bya micro force sensor, an inflatable airbag is utilized for loading aerodynamic load on the deformation wing, feedback is given to a controller, a closed-loop adjusting system is formed to control theapplication of the aerodynamic load, the application process of the aerodynamic load is effectively simulated, and distributed loading is achieved. The test bench is simple in layout structure, shortin measurement time, convenient to operate, assemble, disassemble, detect and maintain and low in cost. By means of the test bench, the measurement time can be effectively shortened, and the measurement efficiency is improved; the test bench has good applicability to tests of small and medium deformation wings.

The invention discloses a dampproof and dehumidification switch cabinet. The switch cabinet comprises a cabinet body and a cabinet door arranged on the cabinet body. A handle and an observation window are arranged on the cabinet door. A hollow separator plates is parallel arranged in the cabinet body. Multiple through holes are arranged in the separator plates which are connected with an air exhausting pipe. The other end of the air exhausting pipe stretches out of the cabinet body and then is connected with a gas exhausting device. A heating groove is arranged in the middle of the bottom of the cabinet body. A heating pipe is arranged in the heating groove. A temperature sensor is arranged at the bottom of the cabinet body. A humidity sensor is arranged on the separator plate. A PLC controller is arranged in the cabinet body and is connected with the temperature sensor and the humidity sensor via data lines. The PLC controller is electrically connected with the gas exhausting device and the heating pipe. The switch cabinet is simple in structure and convenient to manufacture; temperature and humidity in the cabinet body can be automatically controlled and displayed on a liquid crystal screen on the cabinet door; and the switch cabinet is brightly illuminated and a light can be easily opened.

The invention discloses a distributed power supply grid connection interface device which comprises a shell. A field control panel and a display panel are disposed on the shell. A bus plate is disposed in the shell. The bus plate is provided with working voltage, a power supply plug-in, a CPU (central processing unit) plug-in, an alternating current sampling plug-in, a smart I/O (input/output) plug-in, a remote communication plug-in and a serial communication plug-in. The CPU plug-in is in signal connection with the alternating current sampling plug-in, the smart I/O plug-in, the remote communication plug-in and the serial communication plug-in respectively. By the distributed power supply grid connection interface device, circuit signals of secondary equipment in grid connection circuits can be processed in a centralized manner, grid connection circuit wiring can be optimized, secondary equipment intensification is facilitated, maintenance by a user is facilitated, and popularization is facilitated.

An embodiment of the invention discloses a method for network detection. The method includes: detecting operating states of an interactive network of a digital terminal and a network terminal; obtaining abnormal information when abnormal operation of the interactive network is detected; and sending the abnormal information to a communication receiving end which builds communication connection with the digital terminal. The digital terminal is further discloses. The method for the network detection and the digital terminal can collect fault content of the interactive network simply and accurately, analyze and obtain fault reasons, perform detection and maintenance conveniently when network faults occur, reduce after cost of manufacturers, and improve market competitiveness of the digital terminal.

The invention discloses a liftable central-positioned low-voltage switch cabinet and relates to the technical field of a switch cabinet. The switch cabinet comprises a cabinet body, wherein a semi-enclosed external mechanism is arranged on the periphery of the cabinet body, a motor box is arranged at a bottom end of the semi-enclosed external mechanism, a driving mechanism is arranged in the motorbox, a lifting assembly is arranged in the semi-enclosed external mechanism, and the lifting assembly is connected with the driving mechanism. By starting a motor, the motor drives a first bevel gearto rotate through a rotating shaft, so a second bevel gear is driven to rotate, the cabinet body rises and falls under cooperation of a sliding block and a screw, moreover, a clamping block at a rearend of the cabinet body is matched with a sliding groove, so the cabinet body rising and falling stability is improved. Compared with the prior art, the switch cabinet is more flexible, and a workercan conveniently detect and maintain internal instruments and the like.

The invention relates to AGC carrying equipment for an intelligent warehouse based on the Internet of Things. The AGC carrying equipment comprises a body, movable wheels, a supporting plate and a PLC.A fastening mechanism and an adjusting mechanism are further included. The fastening mechanism comprises a first fastening assembly and a second fastening assembly, and the adjusting mechanism comprises a lifting assembly and a rockover assembly. According to the AGC carrying equipment for the intelligent warehouse based on the Internet of Things, by means of the fastening mechanism, the bottomsand two sides of goods of different sizes can be fastened, multiple protection functions are achieved, and the situation that in the goods carrying process of the equipment, the goods deviate and shake, and consequently the goods fall off is avoided; by means of the adjusting mechanism, a center console can be controlled to ascend and descend and be stored in the body, detection and maintenance are convenient, the goods can be prevented from collide with the center console to damage the center console, and a good dust preventing effect can be achieved; and the practicality and reliability of the AGV carrying equipment are improved.

The invention provides an electric service test vehicle signal dynamic detection system and method. In the electric service test vehicle operation process, track circuit information, compensation capacitor information, transponder information, traction backflow information, circuit equipment appearance state information, train speed and position information and the like are mainly acquired in realtime, the information is processed through all subsystems and then input into a detection server, and after being comprehensively processed and stored through the detection server, the information isdisplayed in real time through all terminal equipment. The system comprises the comprehensive detection subsystem, the track circuit detection subsystem, the compensation capacitor detection subsystem, the transponder detection subsystem, the traction backflow detection subsystem, the video detection subsystem, the detection server, detection terminals and the like. The system and method have thebeneficial effects that a multi-task multithread processing method is used, information such as the train-mounted track circuit transmission characteristic, a compensation capacitor and a transpondermessage is detected in the electric service test vehicle operation process, and through comprehensive analysis, the equipment application quality is counted, and the level is estimated.

The invention provides an optical fiber transmission lighting device. By means of a circuit control system and a cooling system, a lasing diode is controlled to output 450 nm blue single-frequency lasers stably and continuously, the 450 nm blue single-frequency lasers are coupled into transmission optical fiber by an optical fiber coupler, a laser headlight receives parallel beams transmitted by optical fiber, after beam expansion is conducted, the parallel beams are in motivating reaction with a yellow phosphorus filter inside the laser headlight so as to be switched into 540 nm yellow light, mixing light with blue light and the yellow light being 1:3 is formed finally, and white-light illumination with high luminance is achieved. Due to the fact that optical fiber transmission is adopted in the device, separation of light and electricity is conducted, the optical fiber transmission lighting device is an safe, energy-saving, non-pollution, green and outdoor lighting device, and the problems that the energy consumption outdoor lighting is large, detection and maintenance are troublesome, and the potential safety hazard is large are solved.

The invention relates to a die cleaning method for tubular piles, which comprises the following steps: step 1, a photoelectric switch, release agent spraying equipment and die cleaning equipment are arranged in the pipe die moving direction from the front to the back in sequence; step 2, the photoelectric switch is cut off when a pipe die is detected, after the photoelectric switch is cut off, the release agent spraying equipment is started by an electrical signal to spray a release agent on the surface of a die cavity of the die, and meanwhile, the die cleaning equipment is start to enter a working state from a standby state; step 3, the pipe die moves forwards to be sprayed with the release agent gradually and cleaned by the die cleaning equipment gradually; step 4, when the photoelectric switch is switched on again, the release agent spraying equipment stops spraying, and the die cleaning equipment stops die cleaning and is reset to enter the standby state. The invention aims to provide a die cleaning line, the die cleaning equipment and the die cleaning method for the tubular piles, which have the advantages of simplicity and convenience in operation, low labor intensity, high degree of automation and high die cleaning quality.

The invention discloses an automobile park lever force simulation device. The device is characterized in that a pair of linear guide rods are arranged in parallel on a work table, a guide plate is sheathed on the guide rods on two sides by two linear bearings, a wire drawing hook head is fixedly arranged on the front side of the guide plate, the guide plate is fixedly connected with a piston rod a cylinder by a tension sensor on the back of the guide plate; a spring displacement transducer is arranged on a combined support of the work table, and a detection probe of the spring displacement transducer abuts against the back of the guide plate. The simulation device has the advantages of precision control, smooth movement, simple structure, convenient installation and maintenance, and can help effectively and really simulate automobile park lever force process.

The invention provides a portable centrifugal vertical water pump. The portable centrifugal vertical water pump comprises a buoyancy box, a centrifugal box and a flow stabilizing box, an electric cylinder bottom plate is fixed to the lower surface of the interior of the buoyancy box, an electric cylinder is arranged on the upper surface of the electric cylinder bottom plate, an action rod is arranged at the top power output end of the electric cylinder, a side block is arranged on the left side surface of the action rod, an upper limiting piece and a lower limiting piece are fixed to the top end and the bottom end of the left side surface of the side block respectively, the left end of the upper limiting piece and the left end of the lower limiting piece are fixedly connected with the top end and the bottom end of the right side surface of the left limiting piece respectively, a sports ball is arranged between the upper limiting piece and the lower limiting piece and connected with the top end of an inclined rotating rod, and a second fixed rotating shaft is arranged in the middle of the inclined rotating rod. According to the technical scheme, the technical problems that in the prior art, the capacity of flexibly adjusting the sinking depth of the water pump is not achieved, centrifugal separation of water flow impurities and stable adjustment of the water outlet flow cannot be achieved are effectively solved, and application and popularization are facilitated.

The invention provides a method for rapidly overhauling a PCBA line fault of a mobile phone, comprising the following steps: taking out poor PCBA boards and turning off all power sources thereof; selecting a diode measuring shift of a digital multimeter; connecting a red pen-shaped meter of the digital multimeter with the ground wire of the PCBA board and connecting a black pen-shaped meter of thedigital multimeter with a data signal point to be tested; observing the voltage display of the digital multimeter; confirming that the digital multimeter has a voltage display of 0.4-0.8V if the tested data signal and the relevant chip line and PCB board are under normal state, and confirming that the multimeter has no display if the tested data signal and the relevant chip line or PCB board aredisconnected; and measuring other data signals in turn to check where the fault point occurs.

The invention discloses an automatic roadblock placing device in order to solve the problems that a roadblock cannot be fully automatically and efficiently placed and control logic is tedious in the prior art. The automatic roadblock placing device comprises a vehicle body. An electric cylinder and a first motor are fixed to the top of a main body of the vehicle body. Wheels and axles are arrangedat the bottom of the vehicle body. A bottom board is arranged in the vehicle body. A second motor and a first gear are arranged on the upper side of the bottom board. The first gear is engaged with achain. The chain is engaged with a second gear. The second gear is arranged at the end of an input shaft of a speed reducer. An output shaft of the speed reducer drives a second rotary shaft and a second friction barrel to rotate. The second friction barrel makes contact with a conveyor belt and drives the conveyor belt to move. Multiple fixed magnetic discs are arranged on the upper side of theconveyor belt and attract a lower magnetic board at the bottom of the roadblock. A longitudinal rod is driven through motion of the electric cylinder, an attraction magnetic disc attracts an upper magnetic board at the top of the roadblock, so that an automatic roadblock placing function is achieved, application and popularization of the device are facilitated, and meanwhile the achieving cost isreduced.

The invention belongs to the field of mariculture, particularly relates to a cylinder floating type module, and further relates to a cylindrical floating type fishery of a self-lifting net cage. The cylinder floating type module is provided with open pores near a waterline, which can prolong the natural period of the vertical motion of the fishery, thereby reducing motion response of the fishery under the operation and extreme working conditions. The self-lifting net cage structure can be completely locked on the joint position of the upper portion and lower portion of the cylinder floating type module. When fish is completely removed from the net cage, the net cage can be dried in the sun or frozen for disinfection, and a netting can also be checked and maintained very easily. The cylindrical floating type fishery of the self-lifting net cage has the advantages that under various different environmental working conditions, the net cage maintains a constant capacity, thereby ensuring that shoals of fish are not affected by the net cage movement and volume change and live in a low-pressure environment.

The invention provides a power transmission network iron tower overhead line lightning stroke alarm device. An overhead line is connected between power transmission iron towers, the overhead line is connected with a guide line, the guide line is connected with a mutual inductor, a thunder and lightning signal transmitter is installed under the mutual inductor, and the lower end of the guide line is connected to the ground. The mutual inductor is internally provided with a thunder and lightning coil, the other side of the thunder and lightning coil is provided with an induction coil, the induction coil is connected with a current input module in the thunder and lightning signal transmitter through a power line, the current input module is connected with a transmitting module through a high frequency oscillation module, and the upper part of the transmitting module is provided with a transmitting antenna. The mutual inductor is a current transformer. The transmitting module is internally provided with iron tower position information and an oscillation frequency set value. The power transmission network iron tower overhead line lightning stroke alarm device provided by the invention can sense the position of the iron tower of a lightning stroke point, thereby facilitating checking and maintenance, and has an effect of long-distance communication notification, reducing occurrence of safety accidents, and facilitating management and detection. The power transmission network iron tower overhead line lightning stroke alarm device is suitable for being used as a device for electric power iron tower lighting stroke point notification.