26results about How to "Improve maintenance quality" patented technology

This invention relates to the field of ultra-high performance concrete (UHVPC) curing technology, and more particularly to an intelligent temperature-controlled curing method for UHVPC. The method includes the following steps: generating preliminary temperature-controlled curing data for concrete based on UHVPC mix proportion parameters and temperature-controlled curing requirements data; analyzing the distributed temperature field characteristics of the pouring nodes using UHVPC pouring node data to generate distributed temperature field characteristic data for the pouring nodes; analyzing the temperature evolution and hydration state of the pouring node temperature field based on the distributed temperature field characteristic data and the preliminary temperature-controlled curing data to generate temperature evolution and hydration regulation state data; and performing dynamic temperature-controlled curing analysis on the preliminary temperature-controlled curing data to generate dynamic temperature-controlled curing data for the concrete. This invention achieves intelligent temperature-controlled curing by combining the application of UHVPC.

The utility model provides a valve measuring device and nuclear power station maintenance equipment. The valve measuring device comprises a first plate body, a second plate body which is spaced from the first plate body in parallel, a third plate body which is connected with the first plate body and the second plate body, an adjusting mechanism which is arranged on the first plate body, an ejection mechanism which is arranged on the adjusting mechanism, and a measuring mechanism which is arranged on the second plate body. Wherein a fixing hole used for fixing the valve body is formed in the second plate body, the adjusting mechanism can adjust the position of the ejection mechanism so as to be aligned with the fixing hole, the ejection mechanism can eject out a valve element of the valve body, and the measuring mechanism measures the ejection length of the valve element after the ejection mechanism ejects out the valve element. By adopting the technical scheme, the accuracy degree of off-line measurement of the starting valve is improved, and the measurement operation is simplified.

The utility model discloses a kind of maintenance mechanisms for prefabricated bridge, including support, disturbance piece is supported on the support side of support, spray pipe at the top of disturbance piece, and liquid collecting tank at the bottom of disturbance piece;Disturbance piece has multiple continuous undulating disturbance structures;Spray pipe is provided with spray head;When the spray head sprays, water body flows through disturbance structure and is dispersed and disturbed to diffuse into the air of maintenance operation interval after conversion into gaseous state, part of water body not completed conversion is collected by the liquid collecting tank;The utility model realizes temperature and humidity control by spraying water body to disturbance piece, in the flowing process of water body along disturbance piece, the guidance and obstruction of flowing through multiple continuous undulating disturbance structures on disturbance piece are dispersed, disturbed, finally in the form of tiny water molecule group escapes, and evenly diffuse into the air of maintenance operation interval, to realize the uniform promotion of ambient temperature and relative humidity, improve the maintenance quality of prefabricated bridge.

The invention discloses a large-volume coarse aggregate UHPC maintenance method based on temperature and humidity joint control, and the method comprises the steps: scanning an infrared temperature image and an infrared humidity image of a coarse aggregate UHPC structure in a maintenance process through an infrared temperature and humidity scanner, constructing a three-dimensional coordinate system, and calculating the coordinates of a pixel projection grid; fusing two adjacent infrared temperature images and infrared humidity images to obtain representative temperature and representative humidity; constructing an absolute temperature rise model and a three-dimensional heat conduction equation, and calculating a real-time ideal temperature; and formulating a temperature and humidity combined control maintenance measure. Joint detection of the temperature and humidity of each point position on the surface of the structure is realized by combining thermal imaging scanning and an image processing technology, accurate temperature and humidity joint control maintenance is performed by combining the surface humidity, accurate maintenance of a large-volume coarse aggregate UHPC area is realized, and the maintenance quality can be effectively improved.

This utility model discloses a small motor maintenance trolley, including a hydraulic system, a lifting system, an adjustable clamping mechanism, a rotating mechanism, and auxiliary tools. The lifting system includes a main frame and a lifting platform. The hydraulic system includes an oil tank, a hydraulic pump, multiple sets of hydraulic cylinders, and supporting oil pipelines. The rotating mechanism is mounted on a base and includes two opposing rotating bodies and rotating clamps. The adjustable clamping mechanism includes two opposing clamps. Auxiliary tools include a frame shell, etc. This utility model enables 360-degree rotational maintenance of motors, achieving efficient, safe, and convenient motor maintenance operations, and is suitable for various motor maintenance scenarios.

The utility model relates to the technical field of bridge construction, and provides a maintenance system and a movable formwork of a cast-in-place box girder, the maintenance system of the cast-in-place box girder comprises a movable spraying device and a fixed spraying device, and the movable spraying device is used for spraying and maintaining the demoulded box girder; the fixed spraying device comprises a water source, a first spraying pipeline and a plurality of rotating nozzles, one end of the first spraying pipeline is connected with the water source, the other end of the first spraying pipeline is connected with the rotating nozzles, and the rotating nozzles are used for conducting swing type spraying on the upper surface of the undemoulded box girder from the side of the undemoulded box girder. According to the maintenance system of the cast-in-place box girder, the plurality of rotary spray heads are arranged in the fixed spray device, and the rotary spray heads spray the upper surface of the undemoulded box girder from the side of the undemoulded box girder in a swinging manner, so that the maintenance blind area can be effectively reduced, each corner of the surface of the undemoulded box girder can be fully sprayed, and the maintenance efficiency of the cast-in-place box girder is improved. And the problem that concrete maintenance is not in place can be avoided.

The application relates to the technical field of network communication fault positioning, and provides an alarm information fault positioning method and system based on Markov inference, which comprises the following steps: evaluating device state parameters and network link state parameters collected in real time by using a support vector machine, and outputting a fault cause judgment result; summarizing historical data accumulated by a network management system into a state transition probability matrix used for describing the probability of a communication network system shifting from a certain working state to another working state, and calculating a fault cause positioning judgment result of a Markov model through the state transition probability matrix, wherein a working state sequence of the communication network system is calculated through the Markov model; and fusing the fault cause judgment result and the fault cause positioning judgment result through a DS evidence theory to obtain a final fault cause positioning result. The application can help operation and maintenance personnel to timely find key factors causing network faults, and improve the accuracy of network fault diagnosis and the overall operation and maintenance quality.

This utility model relates to the field of civil aircraft maintenance technology, specifically disclosing a maintenance and fixing device for a civil aircraft radome. Multiple flexible pins are arranged in a ring array on a fixing platform. A locking switch is configured to lock the relative positions of the flexible pins and the fixing platform, allowing the pins to grip the radome. Multiple clamping members are arranged circumferentially on the outer periphery of the fixing platform, each clamping member abutting against the outer periphery of the radome. This configuration, introducing multiple flexible pins, a locking switch, and multiple clamping members, allows for both flexible adaptation and rigid locking of the radome structure. It can adapt to the curved shape and size of the radome structure, while the flexible adaptive characteristic ensures extremely high positioning accuracy. It enables precise fitting and stable fixing for repairing radome structures of various specifications and models of aircraft, offering convenient operation and high flexibility, effectively improving the maintenance efficiency and quality of civil aircraft radomes.

This invention discloses a tool and method for holding a heavy-duty telescopic rod for shortening a protective cover, solving the problem in the prior art where the telescopic rod still retains supporting elasticity during disassembly. It effectively maintains the length of the telescopic rod, improving the efficiency of telescopic maintenance. The specific solution is as follows: A tool for holding a heavy-duty telescopic rod for shortening a protective cover includes a main base plate and a clamping component. The main base plate and clamping component clamp the upper connecting column of the telescopic rod. The upper connecting column is connected to an upper mounting block connected to the protective cover. The main base plate movably supports a torsion gear assembly. The torsion gear assembly can rotate relative to the main base plate under external force. The torsion gear assembly meshes with a screw-hole gear assembly through a transition gear assembly. The screw-hole gear assembly includes a screw-hole gear and a connecting rod. The screw-hole gear is threaded onto the connecting rod. One end of the connecting rod is connected to a fixing component. The fixing component is connected to the lower connecting column and lower mounting block of the telescopic rod.

This utility model discloses a gas distributor for a chloromethane synthesis reactor. The main support pipe and the main distribution pipe are arranged parallel to each other and positioned below the main distribution pipe. Distribution branch pipes are provided on the main distribution pipe, symmetrically arranged at a 45-degree angle to the horizontal line of the main distribution pipe. A supporting inclined pipe connects the distribution branch pipes to the main support pipe at a 90-degree angle. Both the main distribution pipe and the distribution branch pipes have three rows of distribution holes, arranged on the lower side of the main distribution pipe and the distribution branch pipes. Two rows are symmetrically arranged at a 45-degree angle to the horizontal line of the main distribution pipe and the distribution branch pipes, and one row is arranged at a 90-degree angle to the horizontal line of the main distribution pipe and the distribution branch pipes. This utility model's gas distributor device has a simple structure, uniform stress on the distribution pipes, and a firm connection. It requires fewer pipe openings at the bottom of the equipment, reducing the risk of material leakage. The steel-lined support rods with a double-layer anti-corrosion design have strong corrosion resistance, extending the service life of components and the equipment maintenance cycle.

The evaluation method for improving salt freezing damage resistance of asphalt concrete by admixture belongs to the technical field of asphalt road durability evaluation. The present application aims at the problem that the research on the influence of the existing admixture on the performance of asphalt concrete under salt freezing environment mainly focuses on macro performance, and the improvement effect of the admixture on the performance of asphalt concrete cannot be objectively quantified. Different admixtures are added to asphalt concrete under salt freezing, and each control group is obtained; the microstructure parameters of each control group are obtained; the comprehensive correlation degree of the reference sequence and the comparison sequence in the control group is calculated by using the gray correlation analysis method; combined with the calculation result of the comprehensive correlation degree, the performance damage index of the microstructure parameters on the admixture asphalt concrete is quantitatively evaluated by using the analytic hierarchy process based on the microstructure parameter change rate, so as to determine the improvement effect of the admixture on the performance of asphalt concrete. The present application is used for evaluating the influence of admixture on the performance improvement of asphalt concrete.

This invention discloses a heating and curing device for concrete, belonging to the field of concrete curing technology. It includes a device shell with a first and second flap on its front surface. A rotating buckle is provided on the first flap. A water collection tank is located at the bottom of the shell, and a water inlet pipe is located at the top. This invention utilizes a built-in temperature adaptive adjustment structure. When the air bladder inside the fixed box expands due to heat, it pushes a lifting plate to slide along the fixed box. The angle of the connecting rod is adjusted via a transmission rod and crossbar, thereby pushing the sliding baffles along a fixed track, reducing the distance between the sliding baffles and decreasing the steam flow. When the temperature decreases, the air bladder contracts, and the telescopic spring pulls the lifting plate back to its original position, increasing the distance between the sliding baffles and increasing the steam flow. This achieves automatic and constant temperature control inside the device, avoiding problems such as concrete cracking and insufficient strength caused by excessively high or low temperatures, significantly improving curing quality.

The utility model discloses a belt conveyor guide chute mounting device, which relates to the technical field of belt conveyors, and comprises a rack main body, a fixture steel plate I and a fixture steel plate II, the fixture steel plate I is rotatably connected with a one-way screw rod through a position control plate, and the outer circumferential surface of the one-way screw rod is in threaded connection with the inner wall of a position control sliding block; one side of the position control sliding block is rotationally connected with a linkage plate, one end of the linkage plate is rotationally connected to one side of the positioning block, the other side of the positioning block is fixedly connected with a second clamp steel plate, the second clamp steel plate is rotationally connected with a support plate through a positioning shaft, and the support plate is fixedly connected with the first clamp steel plate. Through the arrangement of the first clamp steel plate, the position control plate, the one-way screw rod, the position control sliding block, the linkage plate, the positioning block, the second clamp steel plate, the positioning shaft, the support plate, the anti-skid disc and the external rotary disc, the purpose of rapidly and conveniently adjusting the inclination angle of the second clamp steel plate can be effectively achieved, and the inclination angle is made to be consistent with the inclination angle of the belt conveyor supporting carrier roller; therefore, the mounting quality and the mounting efficiency are improved.

The adjustable sealing gasket manufacturing device for the low-pressure container comprises a first supporting rod plate and a second supporting rod, the first supporting rod and the second supporting rod are each provided with a sliding rail, and one end of the first supporting rod and one end of the second supporting rod are each connected with a supporting positioning unit; the end, away from the supporting and positioning unit, of the first supporting rod is connected into the second supporting rod sliding rail through a butterfly bolt, the end, away from the supporting and positioning unit, of the second supporting rod is connected into the first supporting rod sliding rail through a butterfly bolt, and a cutting unit is connected into the second supporting rod sliding rail. The invention further discloses a manufacturing method of the sealing gasket. According to the manufacturing device and method for the adjustable sealing gasket applied to the low-pressure container, the problem that in the prior art, a measuring tape is adopted for measuring and reading, large errors are likely to occur, and the manufactured asbestos sealing gasket cannot be used is solved.

The utility model relates to the technical field of shield segment production, and discloses a maintenance frame for shield segment production, which comprises a placing table, a rectangular hole is formed in the middle of the placing table, L-shaped supporting legs are fixedly connected to two ends of the bottom of the placing table, and a same second transverse pipe is rotatably connected between the two L-shaped supporting legs close to the rectangular hole. The positions, located at the bottom of the second transverse pipe, of the two L-shaped supporting legs are rotationally sleeved with the same rotating rod, the two ends of the rotating rod rotationally penetrate through the close L-shaped supporting legs to be fixedly connected with rotating rods, round holes matched with the rotating rods are formed in the two L-shaped supporting legs, and the tops of the two rotating rods are fixedly connected with the same connecting rod. According to the pipe piece maintenance device, all parts such as the two sides and the concave side of the top of a pipe piece can be uniformly covered, local drying or insufficient maintenance is avoided, the maintenance quality is greatly improved, a worker does not need to hold a spray head by hand for operation, the labor intensity of the worker is reduced, and the human input is reduced.

This invention provides an on-board static testing tool and system. The on-board static testing tool includes a cable adapter structure and a multimeter. The cable adapter structure includes a female aviation connector for connecting to a male connector structure of a pre-embedded cable interface under the vehicle. The other end of the female aviation connector is provided with a cable assembly. The cable assembly includes a connecting shell and connecting cables disposed within the connecting shell. The connecting cables are divided into two groups: ABC and PSR. Each connecting cable has a cable head at its end for connecting to the multimeter. This invention has a simple structure and reasonable design, which can transfer the test points of the train's tachometer generator from a densely distributed male connector to a more dispersed female connector cable, facilitating measurement and reducing the risk of equipment short circuits.

The invention provides a train fault diagnosis method and system. The method comprises the following steps: acquiring multi-mode state information of train operation; inputting the multi-modal state information into a pre-trained train fault diagnosis model to obtain a train fault prediction result output by the train fault diagnosis model; determining a train fault diagnosis result according to the train fault prediction result in combination with fault knowledge in the knowledge graph; wherein the train fault diagnosis model is obtained based on historical fault data training; the model parameters and the knowledge graph of the train fault diagnosis model are dynamically updated. According to the invention, the train fault can be quickly and accurately diagnosed, the maintenance time is effectively shortened, the availability of the train is improved, the systematic inheritance and sharing of maintenance knowledge are promoted, and the maintenance quality and efficiency are improved.

The utility model relates to the technical field of concrete, in particular to a concrete curing device which comprises a bottom plate, a round hole is formed in the bottom plate, a limiting disc is rotationally connected in the round hole, a cleaning brush is fixedly connected to the top of the limiting disc, a belt is in transmission connection with the outer portion of the limiting disc, and a driving motor is installed at the top of the bottom plate. The top of the bottom plate is fixedly connected with a dust removal box, the inner wall of the dust removal box is fixedly connected with activated carbon balls, the side face of the dust removal box is fixedly connected with a dust inlet pipe, the top of the dust removal box abuts against a cover plate, the top of the cover plate is provided with a dust suction pump, and the top of the dust suction pump is fixedly connected with an air outlet pipe. The dust inlet pipe and the air outlet pipe are communicated with the dust removal box; the cleaning brush can be driven to rotate under the power action of the driving motor, so that chippings and leaves on the surface of concrete can be cleaned, the cleanliness of the surface of the concrete is improved, the contact area of water and the concrete can be increased, and the curing quality of the concrete is improved.

The application provides a power transmission tower reinforcing process parameter optimization method and system, and relates to the technical field of power transmission tower reinforcement. The method comprises the following steps: obtaining image data of a power transmission tower to-be-sprayed base material; obtaining heterogeneity characteristic quantitative information of the to-be-sprayed base material by processing the image data; dividing the surface of the to-be-sprayed base material into multiple heterogeneity regions according to the heterogeneity characteristic quantitative information; determining the spraying reinforcement parameters of each heterogeneity region according to the heterogeneity characteristic quantitative information corresponding to the heterogeneity region; and controlling the spraying equipment to spray and reinforce each heterogeneity region according to the spraying reinforcement parameters. The method of the application aims to solve the problems of poor coating performance and the inability to realize real-time adaptive optimization of the base material caused by the uneven surface of the base material in the prior art, and improves the overall quality and reliability of the reinforcing coating.

The utility model relates to building construction maintenance technical field especially relates to a plastering and concrete surface layer wet maintenance device, including movable base, water storage tank, spray subassembly, height and angle adjusting mechanism and controller, spray subassembly sets up on height and angle adjusting mechanism, the spray subassembly includes main water pipe, branch water pipe and atomizing spray head, the main water pipe is arranged several branch water pipes side by side, height and angle adjusting mechanism include guide screw, sliding block, fixed base, rotary universal joint, thousand autumn frame and rotating seat, sliding block slides up and down along guide screw, fixed base fixedly connected main water pipe, the tail end of thousand autumn frame is connected branch water pipe through rotary universal joint, and the front end of thousand autumn frame is connected atomizing spray head through rotating seat, the utility model has the advantages of: improving the efficiency of spraying maintenance concrete surface layer, and the spraying wet maintenance of concrete surface layer of different angles, different regions is adapted.

The utility model relates to precast component maintenance equipment technical field, concretely is a kind of prefabricated pipeline automatic maintenance equipment, comprising: maintenance platform, the maintenance frame of two sides symmetrical arrangement, U-shaped frame, threaded rod, motor, moving block, spray pipe, atomizing head, flexible hose, pump body, water tank, controller and timer.Equipment is through atomization spray technology, automation control and reciprocating motion design, realized the even moisture retention and efficient maintenance of cement pipe surface.Meanwhile, equipment adopts arc-shaped groove flow guide and baffle design, effectively reduces maintenance dead angle and moisture evaporation, significantly improves maintenance quality and efficiency, reduces cost and water resource waste.In addition, the equipment bottom is equipped with universal wheel and antiskid block, ensure its stability and flexibility when moving and fixing, avoid the problem of traditional artificial maintenance inefficiency and resource waste, thereby significantly improve the strength and overall quality of cement pipe.

This invention relates to the field of hydropower technology and discloses a method for early warning of vibration swing of bulb turbine units under different operating conditions based on big data. Through steps S1-S5, the method specifically performs intelligent early warning of vibration swing of the bulb turbine unit under different operating conditions. It combines data from multiple Chinese turbine models and the SVR method to fit the health status of the bulb turbine unit, i.e., historical data from the initial operation or after major overhaul. Furthermore, by using different operating condition standards, it achieves personalized judgment based on a single unit. The method compares the real-time vibration swing value of the unit with standard values, alarm values, and shutdown value ranges, providing real-time warnings of exceeding limits and shutdowns for interval operation. It also makes timely intelligent diagnoses, effectively improving the effectiveness of the vibration swing early warning system, reducing false alarms and misreporting, effectively helping to reduce the probability of unit failure, improving the stable operation frequency of the unit, and creating significant economic benefits.

The utility model discloses a multi-angle adjustable electromechanical maintenance platform, which belongs to the field of electromechanical maintenance and comprises a workbench, the upper surface of the workbench is fixedly connected with a fixing frame, an inner cavity of the fixing frame is slidably connected with a sliding frame, and an adjusting mechanism is arranged above the sliding frame; the adjusting mechanism comprises a rack, mounting side plates are fixedly connected to the two sides of the upper surface of the fixing frame, a rotating rod is arranged above the fixing frame, the outer ring of the rotating rod is sleeved with a half gear, and the half gear is meshed with the rack through clamping teeth; through the cooperative use of the devices, the operation comfort and the working efficiency are improved, particularly when the maintenance task of precise electronic elements or complex mechanical structures is carried out, it can be ensured that maintenance personnel obtain a clear visual field and a sufficient operation space, the misoperation risk caused by sight blocking or operation space limitation is avoided, and the service life of the maintenance personnel is prolonged. And therefore, the maintenance quality and safety are improved.

The application relates to an electromagnet technical field, in particular to an electromagnet winding process method and device, the electromagnet winding device comprises a rack and a tensioner frame; a large base plate is arranged at the top of the rack, tail top mechanisms, main shaft boxes, winding motors and wire arranging mechanisms are correspondingly arranged on the large base plate, the tail top mechanisms are arranged opposite to the main shaft boxes, the winding motors are connected with the main shaft boxes, a wire feeding mechanism is slidably arranged on the wire arranging mechanism, and a winding length detection mechanism is fixedly arranged on the wire feeding mechanism; a servo motor driving wire feeding tensioner is fixedly arranged at the upper end of the tensioner frame, and the enameled wire is placed at the bottom of the tensioner frame. The application has the characteristics of simple operation, convenient use and maintenance, high servo control precision, strong practicability, safety, reliability and the like; the original design state of the electromagnetic force of the electromagnet coil can be effectively recovered, the use quality is stable, and the scrapped electromagnet can be 100% reused.

The present application relates to the technical field of equipment maintenance, and more particularly to a power generation equipment maintenance strategy dynamic generation method based on a vectorized knowledge graph, comprising: obtaining a plurality of maintenance fault data; determining the length of the monitoring period of a target power generation equipment according to the historical fault frequency and load anomaly degree of the target power generation equipment, and reducing the length of the monitoring period based on the fault influence degree under a preset condition; determining whether to perform secondary determination according to the maximum abnormal signal characteristic value or to generate a maintenance strategy according to the vibration anomaly degree and temperature anomaly degree corresponding to the current period monitoring data. The present application can improve the maintenance efficiency and quality of power generation equipment.

This utility model relates to the field of road and bridge construction technology, and in particular to a road paving device for road and bridge construction. The device includes a vehicle body, a mixing tank fixedly installed on the upper front side of the vehicle body, a discharge mechanism on the lower front side of the vehicle body, a material cylinder rotatably installed at the middle position of the upper end of the vehicle body, a curing film wound onto the material cylinder, and compaction mechanisms on the front and rear sides of the material cylinder. A connecting rod rotatably installs at the end of the vehicle body, and a first roller is rotatably connected to the lower end of the connecting rod. The first roller is driven by a third servo motor mounted on the connecting rod, and its direction of travel is opposite to that of the vehicle body. This application, through the design of mixing, discharge control, and multi-roller operation, achieves a comprehensive improvement in the uniformity, flatness, and curing quality of concrete paving. The mixing system prevents concrete from solidifying, the discharge mechanism precisely controls the amount of material used, and the multiple rollers sequentially complete the paving, film covering, and air bubble elimination, forming a continuous and efficient construction process.