79results about How to "Meet maintenance requirements" patented technology

The invention discloses an online image detecting device for an operation state of an onboard pantograph of a train. The online image detecting device comprises an industrial camera, a fill-in light,an onboard antenna, an onboard display and an onboard processing host unit; the industrial camera is responsible for video image acquisition; and the fill-in light enhances pantograph area brightness;the onboard antenna realizes wireless communication; the display displays videos; and the onboard processing host unit comprises an image processing module, a data transmission module, a data storagemodule and a power control module. A method of the online image detecting device is further provided. The industrial camera captures video images and transmits the video images to the onboard processing host unit in real time; the format is converted through video encoding, so as to process videos by an online image detecting method for pantograph sliding plate wear; meanwhile, subtitles are superposed to display the operation state of the pantograph through the videos on the display; and the onboard antenna sends data and messages to a ground data processing center through the wireless communication. The online image detecting device disclosed by the invention is easy and convenient to detect, high in precision and high in stability, meets requirements for overhauling a pantograph sliding plate, and can provide a reference for detecting a state of a rail transit vehicle.

The invention provides a steel ball grinding body classifying device applied to a cement ball mill which belongs to the technical field of cement ball mills. The invention further relates to a classification method of the steel ball grinding body classifying device applied to the cement ball mill. A discharging chute (2) is arranged below a receiving hopper of the steel ball grinding body classifying device applied to the cement ball mill; a sorting component (3) is arranged at the side surface of the receiving hopper (1); a long roller I (4) of the sorting component (3) is connected with a driving motor I (6); a long roller II (5) is connected with a driving motor II (7); a gap part (8) is arranged between the long roller I (4) and the long roller II (5); and the width size of the gap part (8) is set as a structure which is gradually increased from one end close to the receiving hopper (1) to one end far away from the receiving hopper (1). The steel ball grinding body classifying device and the steel ball grinding body classification method applied to the cement ball mill provided by the invention can realize automatic classification of steel balls according to the diameter of different steel balls, can realize precise control on classification of the steel balls, and improves the classification efficiency.

A rolling and lubricating automatic fluid preparation method for a cold rolled strip comprises a step of the rolling oil T-hour consumption accumulative amount within the interval time of one-time oil adding and a step of automatic oil and water supplementing; and according to the step of the rolling oil T-hour consumption accumulative amount within the interval time of one-time oil adding, according to the computational formula, J I =plate face main consumed oil + magnetic filtering consumed oil + oil skimmer consumed oil. The method has the beneficial effects that automatic control over a rolling and lubricating system is comprehensively achieved, and labor intensity of on-site operators is relieved; the system can achieve the aim that rolling oil and desalted water consumed in the rolling process are properly supplemented, the aim that oil is added in a small-amount multiple-batch manner is automatically achieved, and the maintaining and use requirement of cold rolling emulsified liquid is met; the rolling lubricating oil concentration indeterminacy is improved, after the system is put into use, the cp capability index value of the emulsified liquid concentration working procedure is kept between 1.35 and 1.76, and the standard difference ranges from 0.14 to 0.2; and high rolling oil consumption caused by manual operation in rolling is reduced, and consumption of rolling oil ton steel is reduced by 0.02kg / t.

The invention relates to a device and a method for testing health state of a battery, wherein the device comprises a main control module and the following modules that are connected with the main control module: an input module, a discharging load module, a voltage / current / temperature signal collecting module and an output module. The method comprises the steps of correcting CCA (Common Communication Adapter) and calculating the reference internal resistance R0 of the tested battery according to the testing standard, the battery type and the environmental temperature; measuring the voltage change rate DV and the current change rate DI of the measured battery by conducting and disconnecting the discharging load (recovered); calculating the practical dynamic battery resistance R which is equal to DV / DI; calculating the state of charge of battery SOH that is equal to (R-R0) / R0; and outputting the testing result or corresponding testing prompt of the health state according to the battery voltage V and SOH. According to strict verification of discharge test, the estimation precision of the testing device and the testing method can achieve within 5%, can be repeatedly tested, do not need strict conditions, have high automation degree, and can meet the practical maintenance requirements of the battery.

The invention discloses equipment for single track tunnel inverted arch construction, and relates to the technical field of inverted arch construction. The equipment for single track tunnel inverted arch construction comprises a horizontal stabilizing fixing bottom plate and vertical connecting supporting columns, the two sides of the top of the horizontal stabilizing fixing bottom plate are fixedly connected with the bottom ends of the vertical connecting supporting columns separately, and a horizontal stabilizing top plate is fixedly connected to the top ends, far away from the horizontal stabilizing fixing bottom plate, of the vertical connecting supporting columns. According to the equipment for single track tunnel inverted arch construction, rolling wheels can be driven to automatically move or move on the track surface under rotation of an auxiliary motor, therefore, the purpose that maintaining liquid is stirred on the working face on the site is achieved, the functionality of the maintaining liquid is effectively improved through newly-blended mixed curing liquid, the problems of nonuniformity and low efficiency in an manual on-site blending method are avoided, the curing effect is greatly enhanced, the using function of a curing rack is effectively guaranteed, and the safety of the curing rack is improved.

The invention discloses a single-sided slight-lifting lifting device for automobile maintenance, and relates to the technical field of lifting machine equipment. The single-sided slight-lifting lifting device comprises a substrate; a first fixed block is fixed in the middle of the upper surface of the substrate, and first guide rails are fixed on one opposite side of the first fixed block; the twofirst guide rails are in sliding connection with sliding blocks, one surface of each sliding block is fixed with a supporting plate through a connecting block, and a vehicle travelling groove channeland a guiding groove are formed in the upper surface of each supporting plate; each guiding groove is internally connected with a sliding plate in a sliding mode through a guiding block, and positioning seats are mounted on the upper surfaces of the sliding plates side by side through a second guide rail; and the two positioning seats are internally matched with rotating shafts rotatably, and oneend of each rotating shaft is fixedly connected to a limiting frame. According to the single-sided slight-lifting lifting device, the movement of the front or rear wheels of a car is limited by usingthe adjustable limiting frames, the rear or front part of the car is slightly lifted by using power telescopic rods, the time-consuming and labor-intensive problems caused by the traditional whole car lifting are solved, and the higher market promoting value is achieved.

The invention discloses an asphalt mixture with an ultra-thin overlay. The asphalt mixture comprises the following preparation raw materials in percentages by weight: 88.5%-91% of stone materials, 4.5%-5.0% of mineral powder, 5-6% of asphalt, and 0.3-0.5% of fibers; and the stone materials includes a stone material with a particle size of 0-3mm and a stone material with a particle size of 3-5mm, wherein the weight content of the stone material with the particle size of 0-3mm is 23-27% in the stone materials, and the weight content of the stone material with the particle size of 3-5mm is 73-77%in the stone materials. The asphalt mixture with the ultra-thin overlay disclosed by the invention belongs to skeleton dense types, and has a better skeleton structure, so that the asphalt mixture with the ultra-thin overlay prepared in a reasonable ratio has stronger deformation and rutting resistant ability, has a good structure depth, and meets the anti-slip requirements for road surface acceptance; and the asphalt mixture has good high-temperature, low-temperature, and water-stable properties, and has positive effects on effective prevention of early damage to the road surface.

The embodiment of the invention discloses a machine door anti-sinking device. The machine door anti-sinking device comprises a driving shaft, a composite rocker arm, a spring assembly, a touch rod with an idler wheel, an adjustable pull rod and a blocking assembly, the composite rocker arm comprises two rocker arms with hinged ends, wherein the driving shaft is installed on a cabin door skeleton,the hinged area at the end part of the composite rocker arm is nested on the outer side of the driving shaft, one rocker arm is connected with the cabin door skeleton through the spring assembly, theother rocker arm is connected with one end of the adjustable pull rod, and the other end of the adjustable pull rod is connected with the blocking assembly; and the driving shaft is used for rotatingunder the action of the touch rod with the idler wheel, the adjustable pull rod is driven by the rotation of the composite rocker arm to move, and thus the blocking assembly is locked or unlocked. Theembodiment of the invention provides a cabin door anti-sinking mechanism with simple structure, compact mechanism, convenient maintenance and less weight on the premise of meeting the use function requirements.

The invention discloses an underpinning protection system for a top socket pipeline in undercrossing construction and a construction method. The underpinning protection system comprises two first beam bodies which are oppositely arranged, at least two cast-in-place piles, at least two cast-in-place piles beam bodies, a plurality of second beam bodies and a supporting brackets, the first beam bodies are located on the lower side of the socket pipeline and are consistent with the socket pipeline in extension direction; distance between the two first beam bodies is greater than the diameter of the socket pipeline; the at least two cast-in-place piles are used for supporting the first beam body, and the cast-in-place piles are arranged at intervals in the extension direction of the socket pipeline; the second beam bodies are arranged in parallel, and the two ends of each second beam body are connected with the first beam bodies respectively; the supporting bracket is located on the second beam body and used for supporting the socket pipeline, and an arc-shaped groove matched with the outer wall of the socket pipeline is formed in the upper surface of the supporting bracket. The underpinning protection system solves the problem that normal use of the socket pipeline cannot be ensured due to the fact that disturbance on the socket pipeline is too large when the existing socket pipeline penetrates through the lower portion of a traditional newly-built box culvert.

The invention discloses an automatic stalling method for an engine. The method comprises: a running state detection step of detecting the running state of a vehicle, wherein the running state comprises a stationary state and a motion state; a driving position detection step of judging whether a driver is at the driving position of the vehicle or not; an engine state detection step of detecting the movement state of the engine, wherein the movement state comprises a stopped state and a rotating state; an execution step of transmitting a stalling signal to an execution mechanism by using a controller in the stationary state and the rotating state under the condition of no driver, and stalling the engine by using the execution mechanism. Whether the vehicle is in the stationary state or not, whether the driver is at the driving position or not and whether the engine rotates or not are judged, and the engine is stalled under the conditions that the vehicle is in the stationary state, the engine is in the rotating state and the driver is not at the driving position, so that engine abrasion caused by the long-time operation of the engine is prevented, and meanwhile, energy sources are saved.

The invention relates to a maintenance method for a blast furnace hearth. The method adopts the technical scheme that: when the temperature measured by a thermocouple at a position rises sharply and the variation value of the water temperature difference of a corresponding cooling wall 2 is less than 1 DEG C, the position of the thermocouple is taken as a datum hole 3, and the positions of the six vertical slits of the corresponding cooling wall 2 are determined as grout holes 1 respectively; after drilling and cleaning, grouting is started from the datum hole 3, and the grouting is performedon the grout holes 1 from bottom to top successively; and the temperature measured by the thermocouple and the water temperature difference of the cooling wall 2 are monitored and recorded, and if the variation value of the water temperature difference of the cooling wall 2 is more than 1 DEG C, a heat insulating layer is filled sufficiently, and the maintenance is finished; otherwise, the grouting is repeated until the variation value of the water temperature difference of the cooling wall 2 is more than 1 DEG C. The method is simple in determining positions with problems, can find the problem in a hearth zone correctly, has simple construction process and low cost, and avoids the influence on normal production of a blast furnace and improves the service life of the blast furnace during the maintenance.