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420results about How to "Improve maintenance efficiency" patented technology

Inertial navigation measurement method for pipeline center line

The invention provides an inertial navigation measurement method for a pipeline center line of a buried pipeline. An inertial navigation detection positioner is adopted for measurement, and is composed of a mobile carrier unit, an inertial measurement unit, an odometer wheel, a data storage unit, a data downloading and processing unit, a speed control unit, and a ground tracking positioning and power management unit. The method comprises the procedures: firstly setting parameters of a detection device; combining with a GPS system to complete initial coordinate setting; carrying out self-inspection of the device, and returning to zero; if being not completed, going back to set the parameters of the detection device; if being completed, mounting an inertial navigation system on a detector or other carriers; detecting and carrying out real-time data acquisition; completing the detection; calibrating a terminal position by the GPS system; downloading data, carrying out post treatment, and resolving center line data; carrying out error correction, and completing drawing of coordinates; and ending. The method can accurately draw out the three-dimensional coordinates, moving directions and displacement of the pipeline center line and even pipeline deformation.
Owner:PETROCHINA CO LTD

Intelligent external inspection and maintenance vehicle for rail beam of suspension monorail transit

Suspended monorail traffic track beam external intelligent inspection and maintenance vehicle to realize the automation, informatization and intelligence of track beam external faults and defect inspections, and provide inspection and maintenance operating conditions. It has a car body, a drive unit, an intelligent detection unit, a driving control unit and a safety protection unit. The drive unit is composed of a power storage battery and a suspension bogie. The rear of the car body is equipped with a suspended monorail track beam inspection and maintenance operation platform, which is equipped with a sensor lifting bracket, a contour detector, a lifting fence translation track, an inspection and maintenance operation lifting platform, a limit detection laser sensor, and a corrosion detection camera; the suspended monorail The track beam inspection and maintenance work platform can move laterally and vertically on the translation track of the lifting fence, and the range of motion covers the left, right and lower sides of the track beam, providing an inspection and maintenance platform that can be moved horizontally and vertically outside the track beam. The contour detector and the corrosion detection camera of the intelligent detection system are installed on the vertically movable sensor lifting brackets on both sides of the middle of the car body, the corrosion detection camera is installed outside the middle of the bracket, and the contour detector is installed on the inside of the middle and top of the bracket .
Owner:CHINA RAILWAY ERYUAN ENG GRP CO LTD +2

Device for correcting pre-tightening force between firing pin and nozzle and piezoelectric injection valve thereof

The invention relates to the technical field of piezoelectric injection valves, in particular to a device for correcting pre-tightening force between a firing pin and a nozzle. The device comprises afirst adjusting mechanism and a second adjusting mechanism, wherein the first adjusting mechanism is provided with a pre-tightening piece and an upper adjusting block and a lower adjusting block whichare matched with each other; and the second adjusting mechanism is provided with an adjusting rod, and the bottom end of the adjusting rod abuts against the upper surface of the upper adjusting block. According to the device, the first adjusting mechanism is ingeniously utilized to roughly adjust the horizontal position of a lever so as to facilitate assembly of a piezoelectric actuator, the position of the lever is accurately adjusted in a follow-up manner by matching with the second adjusting mechanism, so that the pre-tightening force between the firing pin and the nozzle is adjusted, andthe problem that the piezoelectric actuator is too loose or too tight during adjustment can be avoided; and the nozzle at the current installation position can be adapted by driving the firing pin tomove after being mounted in the nozzle, the mounting position of the nozzle does not need to be accurately mastered, the assembly difficulty of the nozzle is greatly reduced, and the maintenance efficiency of the nozzle is improved.
Owner:CHANGZHOU GAO KAI PRECISION MACHINERY CO LTD

On-line monitoring device for roll gap of plate blank continuous casting machine

The invention relates to an on-line monitoring device for roll gap of a plate blank continuous casting machine, which belongs to the technical field of metallurgy professional measurement device. The middle part of a displacement sensor of the device is fixed on the middle part of the internal surface of an upper measurement positioning board through an upper positioning seat of a measuring rod, and the lower end of the displacement sensor is movably inserted in a lower positioning seat of the measuring rod; a sensing end of the displacement sensor is extended out of the upper and lower measurement positioning boards respectively; the upper and lower positioning seats of the measuring rod are movably sleeve and connected with each other; the two sides of the internal surface are fixedly connected with two upper guide rod positioning seats respectively, and the two upper guide rod positioning seats are movably sleeved and connected with the two lower guide rod positioning seats respectively; and the upper and lower measurement positioning boards are extended toward the two ends along the width direction respectively so as to form support heads which contact with an upper continuouscast roller and a lower continuous cast roller during measurement respectively. In the invention, the abnormal changes of the roll gap can be found in time by the displacement sensor tracking the measuring value of the roll gap and analyzing the trend in an on-line manner, and the overhauling work can be quantitatively instructed, thereby improving the overhauling efficiency and being favorable to improving the capacity and reducing the mass loss.
Owner:SHANGHAI MEISHAN IRON & STEEL CO LTD

Combined electrical appliance partial discharge defect diagnosis method and system

The invention discloses a combined electrical appliance partial discharge defect diagnosis method and system. The combined electrical appliance partial discharge defect diagnosis method comprises thesteps of: inputting an obtained ultrahigh-frequency partial discharge map of a to-be-detected transformer substation combined electrical appliance into a trained convolutional neural network model, and outputting a defect recognition result; and matching the defect identification result with a knowledge base to obtain a reason and a processing principle for forming the defect, wherein the convolutional neural network model is trained through utilizing a pre-constructed atlas library, and the atlas library comprises a plurality of substation combined electrical appliance detection atlas data sets with annotation information, and the knowledge base comprises defect reasons and processing principles corresponding to different defect types. According to the combined electrical appliance partial discharge defect diagnosis method and the system, an improved VGG16 structure is adopted, a transfer learning mode is utilized, model parameters of a convolution layer, a pooling layer and a full connection layer are optimized through utilizing VGG16 network model parameters, identification of a partial discharge map type is achieved, and the accuracy rate of a partial discharge mode can be improved.
Owner:DONGYING POWER SUPPLY COMPANY STATE GRID SHANDONG ELECTRIC POWER +1

Elevator cloud system for achieving lifelong responsibility of manufacturer for elevator and elevator operation control method of elevator cloud system

The invention belongs to the technical field of elevator equipment and an intelligent control technology, and relates to an elevator cloud system for achieving lifelong responsibility of a manufacturer for an elevator and an elevator operation control method of the elevator cloud system. The elevator cloud system for achieving lifelong responsibility of the manufacturer for the elevator and the elevator operation control method of the elevator cloud system solve the technical problem that an existing technology is not reasonable enough in design. The system comprises an elevator cloud and a remote monitoring center, the elevator cloud comprises a cloud processing module, the cloud processing module is connected with an elevator communication module and a wireless communication module, the elevator communication module can be connected with an elevator control system and conduct data exchange with the elevator control system, the wireless communication module can be connected with the remote monitoring center through a wireless communication network and conduct data exchange with the remote monitoring center, and the cloud processing module is further connected with a cloud storage. The elevator cloud system and the elevator operation control method have the advantages that effective monitoring and management can be achieved on the elevator, the use safety of the elevator is guaranteed, and the fault maintenance can be conducted in time; the wireless communication module enables information of a broken-down elevator to be fed back to the remote monitoring center in time, the remote monitoring center can assign people to maintain the broken-down elevator in time, the maintenance cost is lowered and the repairing efficiency is increased virtually, and the practicability is high.
Owner:SYNEY ELECTRIC HANGZHOU CO LTD

Outdoor carrying full trailer and operating method thereof

The invention relates to an outdoor carrying full trailer and an operating method of the outdoor carrying full trailer. The outdoor carrying full trailer comprises a traction bracket, an inner pipe, a traction ring, a dustproof cover, an air spring and a backup pin, wherein a front rotating shaft is arranged on the lower part of the traction bracket; a braking device, a braking connection rod mechanism and a pair of inner and outer meshed tooth disks are arranged on the front rotating shaft; the two inner tooth disks are connected with the traction bracket; the two outer tooth disks are connected with the front end of a rotating bracket; the rear end of the rotating bracket is connected with a guide wheel bracket through a rear rotating shaft; two ends of the rear rotating shaft are respectively sleeved with a pair of inner and outer meshed tooth disks; the two inner tooth disks are connected with the guide wheel bracket; the two outer tooth disks are connected with the rotating bracket; the front rotating shaft and the rear rotating shaft on the outer sides of the two outer tooth disks on one side are respectively in threaded connection with locking handles; the locking handles are rotated to adjust the angle of the rotating bracket; the tail of the guide wheel bracket is connected with a compartment and is connected with two upper supporting legs and two lower supporting legs through a groove steel support, and the upper supporting legs and the lower supporting legs are connected through fixing pins; the bottom of each lower supporting leg is in threaded connection with a supporting foot and is also connected with a base through a universal joint.
Owner:北京军适机械有限公司

On-line recognition device and method of diesel engine power performance

InactiveCN103967631AImprove maintenance qualityImprove maintenance efficiencyProgramme-controlMachines/enginesPower performanceAccelerograph
The invention discloses an on-line recognition device and method of diesel engine power performance. The on-line recognition device comprises a vehicle speed sensor, an engine speed sensor, a diesel engine accelerograph rack position sensor, an ECU and an alarm device. The vehicle speed sensor, the engine speed sensor and the diesel engine accelerograph rack position sensor are connected with the ECU respectively. The circumstance revising Map and the standard torque Map are stored in the ECU. The ECU compares the revised torque with the standard torque Map, and if revised torque does not meet the requirement of the standard torque Map, the alarm device is notified to conduct alarm prompt. The on-line recognition device is simple in structure, the vehicle driving force is worked out by collecting the revolving speed, the accelerograph position and the speed of a vehicle, the diesel engine output torque is further obtained, the diesel engine power performance can be recognized in a quantitative mode through the comparison with the standard torque in the ECU, the diesel engine output torque can be measured directly under the condition of vehicle loading, the diesel engine state can be monitored, and reliability of diesel engine operation is improved.
Owner:CHINA NORTH ENGINE INST TIANJIN

Derusting device for outer side walls of building pipes

A rust removal device for the outer wall of a construction pipeline, comprising a base, on which a moving groove with an opening facing upwards is provided, a moving block is arranged in the moving groove, and a horizontal thread through hole is arranged on the moving block, and the horizontal thread The threaded rod is connected to the internal thread of the through hole, and the two ends of the threaded rod are erected on the base on both sides of the moving groove, and the right end of the threaded rod is fixedly connected with the first motor output shaft fixedly arranged on the right side wall of the base; The side is fixedly connected with a first support frame, the top of the first support frame is fixedly connected with a baffle plate, a circular groove is opened on the left side wall of the baffle plate, and the right end of the pipe is against the inner side of the circular groove. Compared with the prior art, the beneficial effect of the present invention is that when the pipeline is moving, the outer wall of the pipeline is derusted by a rotating wire brush, thereby improving the maintenance efficiency of the pipeline. The invention has the advantages of reasonable structural design, convenient use, high derusting efficiency, etc., and has certain popularization and application value.
Owner:刘奇美
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