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28 results about "Operation safety" patented technology

Operation safety evaluation method and system of railway freight vehicle

ActiveCN109712270AAccurate and effective assessmentRegistering/indicating working of vehiclesSafety indexDynamic models
The invention discloses an operation safety evaluation method and system of a railway freight vehicle. According to the method, a mass, a centroid position and a rotary inertia parameter of a vehiclebody loaded with cargos are calculated based on data collected by a data acquisition device; the mass, the centroid position and the rotary inertia parameter of the vehicle body loaded with cargos areinputted into a vehicle-track coupling dynamics model as dynamic parameters; a required wheel-rail contact force is calculated by combining the running condition of the vehicle; a derailment coefficient, an overturning coefficient and a wheel load shedding rate of the vehicle are respectively calculated; and then whether the derailment coefficient, the overturning coefficient and the wheel load shedding rate meet corresponding safety conditions is determined to determine whether the safety index of the vehicle is qualified. Therefore, because of consideration of the characteristic of the loaddiscrete distribution of the railway freight vehicle, the running safety state of the railway freight vehicle can be evaluated accurately and effectively, so that the risk of overturning and derailment of the railway freight vehicle is reduced.
Owner:SOUTHWEST JIAOTONG UNIV +1

Transformer substation monitoring device, method and system

InactiveCN106546219AReal-time acquisitionAccurate collectionUsing electrical meansHeight/levelling measurementTransformerElectric power system
The invention provides a transformer substation monitoring device, method and system and relates to the technical field of electric power. The device comprises a sedimentation acquisition unit, a horizontal displacement acquisition unit, a data processor and a display device, wherein the sedimentation acquisition unit is arranged at an underground position of a monitoring point and is used for acquiring sedimentation data of the monitoring point; the horizontal displacement acquisition unit is arranged at a ground surface position of the monitoring point and is used for acquiring horizontal displacement data of the monitoring point; the data processor is used for obtaining the sedimentation data and the horizontal displacement data and displaying the sedimentation data and the horizontal displacement data through the display device, and is also used for sending the sedimentation data and the horizontal displacement data to a remote terminal through a wireless manner so as to carry out analysis and early warning on the sedimentation data and the horizontal displacement data by the remote terminal. According to the transformer substation monitoring device, method and system, the sedimentation data and the horizontal displacement data of a transformer substation foundation can be acquired in real time and the analysis and early warning on the data are carried out by the remote terminal, and hidden dangers can be found in time so that operation safety of an electric power system is ensured.
Owner:JUANCHENG POWER SUPPLY CO STATE GRID SHANDONG ELECTRIC POWER CO

Maintaining device

InactiveCN105459071AEasy to operateImprove securityOther workshop equipmentMarine engineeringOperation safety
The invention provides a maintaining device. The maintaining device comprises two maintenance platforms. Each maintenance platform comprises a platform pedal, a ladder assembly, a supporting structure and a movable device, wherein the ladder assembly is arranged at one end of the platform pedal, and a connection structure is arranged at the other end of the platform pedal; the supporting structure is arranged below the platform pedal and used for supporting the platform pedal; the movable device is arranged below the supporting structure and the ladder assembly and used for conveying the maintenance platform. The two maintenance platforms are assembled and connected through the connection structures of the platform pedals. The shape after the two maintenance platforms are assembled and connected is matched with the shape of a headstock to be maintained, the maintaining device can be closer to a windshield wiper, glass and the like of the motor car headstock after assembly as the platform pedals with radians are arranged, the structures can be maintained and subjected to other treatment directly, the safety problems like falling off are avoided, and the maintenance and replacement efficiency and operation safety of the windshield wiper, glass and other components of the motor car headstock can be effectively improved.
Owner:CRRC TANGSHAN CO LTD +1

Post insulator dry ice cleaning robot with electrostatic protection function

InactiveCN112122257AImplementation checkAchieve cleaningCleaning processes and apparatusElectrostatic chargesDry iceEngineering
The invention discloses a post insulator dry ice cleaning robot with an electrostatic protection function. The post insulator dry ice cleaning robot comprises a dry ice and gas source supply assembly,a control module and a movable platform with a lifting mechanism, an operation platform is arranged on the top of the lifting mechanism, and a dry ice cleaning operation assembly is arranged on the operation platform; and the dry ice cleaning operation assembly is connected with the dry ice and gas source supply assembly, an electrostatic protection assembly used for grounding the operation platform when the operation platform descends is further fixedly arranged on the movable platform, and the movable platform and the dry ice cleaning operation assembly are both connected with the control module. According to the post insulator dry ice cleaning robot, the purpose of safely, rapidly and efficiently achieving inspection and cleaning of insulators is achieved, the convenience and efficiency of dry ice cleaning are improved, manual inspection and cleaning are avoided, the labor intensity is reduced, the operation safety is improved, electrostatic protection of the post insulator dry icecleaning robot can be achieved, and damage to people and equipment caused by high-voltage static electricity is avoided.
Owner:CHANGSHA UNIVERSITY OF SCIENCE AND TECHNOLOGY

Fire prevention and extinguishment cloth laying vehicle for grassland and laying method

The invention relates to a fire prevention and extinguishment cloth laying vehicle for grassland and a laying method. The fire prevention and extinguishment cloth laying vehicle comprises a frame, and a cab, a hoisting device, an engine and a laying device are sequentially arranged on the frame; front wheels, rear axle driving wheels and rear axle balance shafts are sequentially arranged under the frame. The laying device comprises laying frame oil cylinders and a laying frame; supporting rods are arranged on the two sides of the laying frame, one ends of the two supporting rods are connected to the two laying frame oil cylinders respectively, and a roller connecting the two supporting rods is arranged at the other ends of the supporting rods; the supporting rods form a V shape, and the middle tip part is fixed to the frame in a hinged connection mode and can rotate around a hinged shaft; one ends of the laying frame oil cylinders are fixed to the frame in a hinged connection mode, and the other ends of the laying frame oil cylinders are connected to the supporting rods; the laying frame oil cylinders telescope for driving the supporting rods to rotate around hinged shafts. By using the fire prevention and extinguishment cloth laying vehicle for the grassland, the speed of forming fire stop lines is increased, the workload of operating personnel is lowered, and the operation safety is improved.
Owner:鲁鸿天 +3

Large creepage distance European joint structure

InactiveCN104917138AExtended service lifeImprove personal safetyCable junctionsElectrical conductorLow voltage
The present invention relates to a large creepage distance European joint structure which mainly comprises a high voltage switch connector and a cable connector. An induction coil is arranged in the high voltage switch connector; the wire outlet end of the high voltage switch connector is connected with a high voltage cable by the cable connector; a distance between a conductor in the high voltage switch connector and the secondary low voltage output end of the induction coil is an along surface creepage distance; three outer skirt edges are formed at the rear end of the end, which is connected with the cable connector, of the high voltage switch connector and the three outer skirt edges are simultaneously positioned at the front end of the secondary low voltage output end of the induction coil, so that the along surface creepage distance is 200mm to 265mm; and the secondary low voltage output end of the induction coil is connected with a live display. The large creepage distance European joint structure has the beneficial effects that the service life of a switching cabinet can be greatly prolonged and operation safety of a power grid is ensured; meanwhile, currently, most European cable connection adopts a shielding type product, so that live touch can be realized; and the structure also can greatly improve personal safety of an operator.
Owner:HANGZHOU SHUGUANG ELECTRIC APPLIANCE

Automatic ore feeding device of magnetic separators and automatic ore feeding control method

ActiveCN112173743AChange open and close stateChange opening sizeConveyorsMagnetic separationMining engineeringMagnetic separator
The invention discloses an automatic ore feeding device for magnetic separators and an automatic ore feeding control method. A plurality of ore feeding openings in one-to-one correspondence with the parallel magnetic separators are formed in an ore distribution box, and the ore feeding openings are used for ore feeding of the magnetic separators correspondingly. A control unit is electrically connected with an ore feeding pump. The working current value of the ore feeding pump can be obtained, and the working current value of the ore feeding pump reflects the circulation amount of the ore dressing process. The control unit is electrically connected with a lifting driving mechanism and used for controlling the lifting displacement of the lifting driving mechanism. The lifting driving mechanism drives material plugs to move up and down in the ore distribution box, and therefore the opening and closing state and the opening size of each ore feeding opening are changed. According to the automatic ore feeding device for the magnetic separators and the automatic ore feeding control method, the on-site flow quantity change condition can be automatically detected, the automatic adjustmentof the ore feeding quantity of the magnetic separators, the start and stop of the magnetic separators and other operations are realized according to the flow quantity change condition, the convenienceof reasonably operating the number of the magnetic separators is improved, the frequency of climbing an ore distribution box platform of the magnetic separators by on-site operators is reduced, the labor intensity of the operators is reduced, and operation safety is ensured.
Owner:SHOUGANG CORPORATION

Plug-in multi-rotor unmanned plant protection machine liquid medicine spraying quick-connecting mechanism

InactiveCN109744217AAircraft componentsLaunching weaponsEngineeringScrew thread
The invention discloses a plug-in multi-rotor unmanned plant protection machine liquid medicine spraying quick-connecting mechanism. The plug-in multi-rotor unmanned plant protection machine liquid medicine spraying quick-connecting mechanism is used for quick connection of liquid medicine of a plant protection medicine box and a spraying system and includes a concave head connecting piece, a convex head connecting piece, an elastic piece, a moving piece and an O-shaped ring, wherein a connecting body of the medicine box is formed by the convex head connecting piece, the elastic piece, the moving piece and the O-shaped ring. The convex head connecting piece is provided with pagoda joints and outer pipe threads, and the pagoda joints and the outer pipe threads are connected to the inside and outside of the plant protection medicine box. The elastic piece and the moving piece sequentially enter a liquid storage space of the convex head connecting piece from a connecting shaft hole of theconvex head connecting piece until a barb buckle of the moving piece enters the liquid storage space, the connecting shaft hole of the convex head connecting piece is completely inserted into a concave hole in the concave head connecting piece, and the plant protection medicine box communicates with a liquid medicine pipeline of the spraying system. The O-shaped ring sleeves a clamping groove ofthe concave head connecting piece and is used for preventing the quick-connecting mechanism from overflowing the liquid medicine and sliding, and the outer pipe threads and the pagoda joints arrangedon the concave head connecting piece are integrally connected with the spraying system of a plant protection machine. The liquid medicine spraying quick-connecting mechanism is reasonable and reliablein structure, quick in operation, and the operation efficiency and the operation safety are effectively improved.
Owner:安徽徽航无人机科技有限公司 +1

Double cable type cable-stayed gate for under-dam culvert pipe inlet control facility

PendingCN110130281ANatural immunityAdaptableBarrages/weirsCable stayedWater flow
The invention discloses a double cable type cable-stayed gate for an under-dam culvert pipe inlet control facility. The double cable type cable-stayed gate is mainly composed of an anchored pier, a lifting ring, a manual hoist, a closing cable, an opening cable, a guide wheel and a gate; and the double cable type cable-stayed gate is characterized in that the lifting ring is arranged on the anchored pier, the manual hoist is hung on the lifting ring, the closing cable and the opening cable are connected with the gate through the guide wheel, and when the gate is opened or closed, the manual hoist is connected to the closing cable or the opening cable for opening or closing. The double cable type cable-stayed gate for the under-dam culvert pipe inlet control facility has the advantages thatin engineering application adaptability, double cable type cable-stayed gate opening and closing transmission components are wire rope cables, and the cables are in a relaxed state during non-openingand non-closing time of the gate, so that natural immunity to the uneven settlement is achieved, and adaptability is high. In the operation safety of a project, the double cable type cable-stayed gate is operated at the top of a dam or a reservoir bank, and personal safety is not affected by the flow of water. In the operation management of the project, the maintenance and replacement of each component are more convenient and simple.
Owner:JIANGXI WATER RESOURCES INST +1

Platform-free line drawing device and method for shaft and roller pieces

ActiveCN104476532ASimple structureSimple and fast operationOther workshop equipmentStructural engineeringOperation safety
The invention relates to a platform-free line drawing device and a platform-free line drawing method for shaft and roller pieces. The device comprises a fixed rod, a base, a sliding fixed sleeve, a rotary rod, a rotary fixed sleeve, a workpiece center ejector pin, an outer reference line hook and an outer reference line sliding fixed sleeve, wherein the fixed rod is fixedly connected with the base; the sliding fixed sleeve is arranged on the fixed rod and is fixedly connected with the workpiece center ejector pin; the rotary fixed sleeve is arranged on the workpiece center ejector pin and is fixedly connected with the rotary rod; the outer reference line sliding fixed sleeve is arranged on the rotary rod and is fixedly connected with the outer reference line hook. The device has the advantages that the structure is simple; two line drawing devices are cooperatively used; a line can be drawn without a platform to judge whether the machining allowance meets machining requirements; moreover, the device is simple and convenient to operate, high in efficiency, low in cost and safe to operate.
Owner:ANSTEEL HEAVY MACHINERY CO LTD

Method for determining iodine value of palm oil

ActiveCN104597079AThe experiment takes a short timeEliminate the interference of human factorsMaterial heat developmentPeak valueCrystallization temperature
The invention relates to a method for determining an iodine value of palm oil. The higher the iodine value of the palm oil is, the lower the saturation degree is, the higher the unsaturation degree is, and thus the lower the corresponding melting point of the palm oil is, and the lower the crystallization temperature corresponding to a cooling crystallizing process is. The method comprises the following steps: associating a temperature, which is obtained by using a differential scanning calorimetry, of a crystallizing peak in an exotherm of a crystallizing process of the palm oil with an iodine value of a sample, then respectively fitting a relationship among a crystallization on temperature Ton, a peak value temperature Tpeak, a crystallization of temperature Toff and the iodine value; and analyzing a series of palm oil samples subsequently without re-establishing a standard contrast curve and a corresponding incidence formula in every analysis. By using the novel method for determining the iodine value of the palm oil, provided by the invention, iodine values of palm oil samples within different iodine value ranges can be determined. According to the method, the operation is safe and simple, the experimental determination speed is high, the determining result is accurate and reliable, and the safety and the efficiency of determining a grease sample are improved.
Owner:TIANJIN UNIV

Outdoor wooden dog cage easy to be cleaned

InactiveCN107347670AScientific and reasonable structureOperational securityAnimal housingWater sourceWater drinking
The invention discloses an outdoor easy-to-clean wooden dog cage, which comprises a wooden frame, a pull-out low box, a wooden buckle, a cage door bolt, a cage door, an external control valve and a feed basin. A rainwater collection device is provided above the frame, a water delivery pipe is provided below the rainwater collection device, a drinking basin is provided below the water delivery pipe, and the feed basin is installed below the feed supply device, and a wooden fence can be moved There is a rotating shaft inside, the wooden buckle is installed on the right side of the wooden frame, and the pull-out low box is installed under the wooden frame. The invention is an outdoor easy-to-clean wooden dog cage with scientific and reasonable structure, safe and convenient operation, and can effectively collect natural and pollution-free rainwater through the rainwater collection device, which solves the problem of the dog's drinking water source and is convenient for cleaning the inside of the dog cage , through the feed supply device, it is not necessary to add feed to the feed basin every day, which solves the problem of dog feed.
Owner:FU JIAN WU PING LONG XING WOOD IND CO LTD

Mechanical arm and control method thereof

The invention discloses a mechanical arm and a control method thereof and belongs to the field of petroleum machinery. The mechanical arm comprises a mechanical arm assembly, a single-oil-way control valve, a dual-oil-way control valve and a controller, wherein the mechanical arm assembly comprises a servo cylinder and a displacement sensor, a servo cylinder front oil way and a servo cylinder back oil way are arranged on the servo cylinder, and the servo cylinder is connected with a push-pull manipulator; the servo cylinder front oil way and the servo cylinder back oil way are connected with a hydraulic oil tank respectively, the single-oil-way control valve is arranged on the servo cylinder back oil way, and the dual-oil-way control valve is arranged on the servo cylinder front oil way and the servo cylinder back oil way; the controller is connected with the displacement sensor and the single-oil-way control valve. According to the mechanical arm and the control method thereof, problems that operation processes are complex and operation safety is lower during operations related to pulling and running of oil tubes at wellheads of oil and water wells are solved, the operation processes are simplified, and the operation safety is improved; the mechanical arm and the control method thereof are used for pulling and running of the oil tubes for the oil and water wells.
Owner:PETROCHINA CO LTD

Mechanical interlocking mechanism of double-insulation cabinet

InactiveCN110957158AImprove securityOn preventionElectric switchesEngineeringOperation safety
The invention relates to a mechanical interlocking mechanism of a double-insulation cabinet. The mechanism comprises a first interlocking assembly, wherein the first interlocking assembly comprises afirst baffle plate, the first baffle plate is arranged in a first insulation cabinet, and the first baffle plate covers a first closing hole of the first insulation cabinet when a second closing holeof the second insulation cabinet is connected; and a second interlocking assembly which comprises a second baffle plate, wherein the second baffle plate is arranged in the second insulation cabinet, and the second baffle plate covers a second closing hole when the first closing hole is connected. According to the technical scheme provided by the invention, based on the existing structure of a double-solid insulation ring main unit, the interlocking assembly is arranged between an indication shaft and the closing holes by utilizing the linkage relationship between the closing hole and the indication shaft of the insulation cabinet, so that when one closing hole is connected, the other closing hole can be covered by the interlocking assembly to be prevented from being connected. The mechanism has the advantages of simple structure, convenient installation and strong interchangeability, and can improve the operation safety of the ring main unit.
Owner:SHENZHEN POWER SUPPLY BUREAU

Double-mode dust suppression device for building construction sites

InactiveCN110975494AAvoid enteringImprove working environmentCombination devicesVehicle frameSprayer
The invention discloses a double-mode dust suppression device for building construction sites. The double-mode dust suppression device comprises a vehicle frame, a transfer cylinder and a sprayer; thetransfer cylinder is located at top of the vehicle frame, the sprayer is fixed at the top of the transfer cylinder; a treatment cylinder is also arranged on the vehicle frame; the treatment cylinderand the transfer cylinder are arranged in parallel; a lifting pump is arranged between the treatment cylinder and the transfer cylinder, an input end of the lifting pump is connected with the treatment cylinder through a transfer pipe, the output end of the lifting pump is connected with the transfer cylinder through a transfer pipe, a supplementing opening is formed in the top of the treatment cylinder, a fan box communicated with the interior of the treatment cylinder is arranged on the upper portion of the side face of the treatment cylinder, and an induced draft fan is arranged in the fanbox. According to the device, dust-containing air is subjected to double-mode dust suppression treatment through the sprayer at the top of the transfer cylinder and the treatment cylinder; the workingenvironment of a building construction site can be effectively improved, the operation safety is guaranteed, solid particles are intercepted through an interception box and prevented from entering the transfer cylinder, and the operation safety of equipment is guaranteed while double-mode treatment is guaranteed.
Owner:李付民

Swinging burner flame detection probe

InactiveCN105444200ASafe swingGuaranteed flexibilityChamber safety arrangementFlame detectionEngineering
The invention discloses a swinging burner flame detection probe, particularly relates to a flame detection probe swinging along with a burner, and belongs to the field of burning equipment. The flame detection probe is formed by connecting an outer sleeve pipe (1), a sliding flange, an outer sleeve pipe (8), a nut (9), an inner sleeve pipe (10), optical fibers (11) and a flame detector (12), wherein a corrugated pipe (1) is located in the middle of the outer sleeve pipe (8); the inner sleeve pipe (10) is fixed in the outer sleeve pipe (8) through the nut (9); the optical fibers (11) are arranged in the inner sleeve pipe (10) and used for being connected with the flame detector (12); the sliding flange is arranged outside the outer sleeve pipes in a sleeving mode. The swinging burner flame detection probe integrates the property characteristics of the corrugated pipe and the sliding flange, can swing along with the burner, effectively prevents the situation that as the outer sleeve pipes are broken due to rigid pulling when the flame detection probe swings, cooling air of the probe leaks out, and the probe is burned out, and guarantees normal operation of the flame detection probe and assemblies thereof, thereby more comprehensively detecting the burning condition of flame in real time and increasing mastering of the operation safety of a boiler. Meanwhile, the thoroughness of fuel combustion can be effectively observed, combustion equipment is improved, and resources are saved.
Owner:徐州能达燃烧控制工程有限公司

Enhanced heat dissipation control method of electric vehicle

The invention discloses an enhanced heat dissipation control method of an electric vehicle. The method is characterized by comprising the following steps: detecting the real-time temperature T and pressure P in a battery box through a battery box temperature and pressure detection module; calculating the pressure P (0) of the optimal heat dissipation efficiency corresponding to the temperature T according to the real-time temperature T in the battery box; calculating the change rate of the pressure in the battery box through the pressure P, and adjusting the opening degree of the electric adjusting valve through the electric adjusting control valve module according to the change rate; and if the opening degree of the electric control valve is adjusted to 100%, controlling and adjusting the rotating speed of a vacuum pump motor through a vacuum pump frequency conversion adjustment control module, and ending the control till that the pressure error rate X is less than or equal to 5%. The heat dissipation efficiency of the battery module can be improved, the structural complexity of the battery module is reduced, the operation safety and stability of the battery module are improved, and the application of gas-liquid two-phase boiling heat transfer in an electric vehicle is promoted.
Owner:YANGZHOU UNIV

Method for batch calculation of multi-model performance chart data based on SCAP protocol

InactiveCN114841676AImprove production efficiencyReduce workloadSustainable transportationOffice automationAviationLanding performance
The invention discloses a method for batch calculation of multi-model performance chart data based on an SCAP protocol. The method comprises the following steps: configuring model parameter data based on the SCAP protocol; generating a calculation input file according to the configured model parameter data based on an SCAP protocol; calling a kernel file of the manufacturer performance calculation software in combination with the calculation input file to obtain output result data; verifying the consistency of the output result data and the result data of the manufacturer performance calculation software; configuring a performance chart calculation template according to the model; generating a calculation input file according to the configured performance chart calculation template based on the SCAP protocol; calling a kernel file of the manufacturer performance calculation software to obtain output result data; analyzing the output result data and generating performance chart data; the method is applied to the production work of the takeoff and landing performance chart data of the airline company, the workload can be reduced, the human error rate is reduced, and the aviation operation safety is improved.
Owner:CHINA AVIATION NAVIGATION DATA (BEIJING) CO LTD
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