212results about How to "Improve inspection and maintenance efficiency" patented technology

The invention discloses a railway wagon fault prediction and health management system. The system comprises a vehicle-mounted PHM system and a ground PHM system. The vehicle-mounted PHM system monitors the states of a key system and parts of a railway wagon vehicle in real time to obtain key part monitoring data and transmits the key part monitoring data to the ground PHM system; the big data processing platform in the ground PHM system performs fault analysis processing on the monitoring data of the key part by using a pre-established mathematical model; different authorities are displayed through the application platform and are opened for different users, and corresponding fault information and maintenance decisions are pushed; Due to the fact that the mathematical model is obtained through comprehensive modeling by combining data obtained by monitoring the states of key systems and parts of railway freight cars and ground data, fault analysis is objective and accurate, and judgmenterrors caused by artificial subjective judgment are avoided.

The invention discloses a multifunctional integrated configuration platform system of secondary equipment of an intelligent substation. The multifunctional integrated configuration platform system of the secondary equipment of the intelligent substation comprises a sampling interface independent configuration module, a substation logical configuration module, an IEC 61850 project configuration module, an SV sampling value sending configuration module and a digital relay protection equipment platform, wherein the digital relay protection equipment platform comprises an analog quantity and fiber interface module, a common IO and operation box interface module, a protection measurement and control logical function module, a station control layer MMS service module, a GOOSE communication service module and an SV sampling value sending service module. The multifunctional integrated configuration platform system can be used in the intelligent substation, realizes the functions of an independent protection, measurement and control device, a merging unit device, an intelligent unit device and a two-to-one or multi-to-one functional device, realizes the integration of the functions of the secondary equipment of the intelligent substation and project configuration, simplifies equipment configuration inside the substation, optimizes a network structure of the intelligent substation, effectively improves the operation reliability and project designing and debugging efficiency of the whole system.

The invention discloses a fire-fighting alternating current smoke detector device which comprises a base and a joint part in matching connection with the base, wherein the base is composed of an outer shell part, a hollow slot and a joint block arranged in the hollow slot; the top of the joint block is fixedly connected with the middle part of a top wall in the hollow slot; a first sliding slot is formed at the top in the joint block; second sliding slots which extend up and down along the joint block are formed on the two sides of the joint block; a first slot part is arranged in the joint block at the bottom of the first sliding slot; an electric conducting hole is formed in the outer shell part at the top in the first sliding slot; second slot parts are correspondingly arranged in the outer shell part on the two sides of the electric conducting hole; downward extending guide rods are arranged in the second slot parts; the downward extending sections of the guide rods enter into the first sliding slot and are fixedly connected with the bottom wall in the first sliding slot; stretching blocks are in sliding connection with the guide rods; the two sides of the stretching blocks enter into and are in sliding connection with the second sliding slots; first elastic elements are wound on the outer sides of the guide rods at the upper ends of the stretching blocks; and blocking devices are correspondingly arranged in the outer shell part on left and right sides at the bottom in the hollow slot.

A power storage device for a new energy vehicle, including a machine base and a power storage frame. The power storage frame is provided with a cavity, and a detachable storage battery is provided in the cavity, and handles are provided on the left and right sides of the battery top. A sliding cavity is provided, and the rear end of the machine base is fixedly equipped with a load-bearing plate. The upper end wall of the machine base is correspondingly provided with pushing grooves that communicate with the sliding cavity and extend front and rear. The sliding cavity can be smoothly installed with a lower slide and an upper slide. There are sliders corresponding to both sides of the upper sliding plate, and the sliders are inserted into the top pushing groove. The upper end wall of the machine base is correspondingly provided with transparent grooves connecting the sliding cavity at the front and back, and at the left and right. Cooperate with the inserted post, the bottom wall of the power storage rack is provided with an insertion slot with the opening facing down and matched with the inserted post, and a placement slot for connecting the insertion slot is also provided in the outer end wall of the insertion slot. A locking arm is smoothly installed, and a locking hole matched with the locking arm is also arranged in the slide block.

The invention relates to a charging pile inspection device and inspection method based on a mobile terminal, which includes a charging pile monitoring system and a mobile inspection server connected to the charging pile monitoring system. The mobile inspection server is connected to a wireless communication server. The wireless communication server is connected with a mobile inspection terminal, the wireless communication server is also connected with a charging pile monitoring terminal for connecting with the charging pile, and the mobile inspection server is also connected with a mobile inspection client. The invention can overcome the disadvantages of poor manual inspection effect, low efficiency and high maintenance cost of charging piles, significantly improve inspection and maintenance efficiency, improve data accuracy, and reduce maintenance costs.

A loc mechanism for a vehicle body frame of a through-road comprises a vehicle body frame and a butt joint frame As the core components of the whole locking mechanism, the vehicle body frame comprisea car body frame, a connecting rod, a car body frame sealing strip, a guide seat, a positioning pin, a handle, a base, a mounting bolt, a combined seal gasket and a car body fastener, and the car bodyframe is pre-fixed on the end surface of the car body through the car body fastener; The docking frame is formed to provide a fixed connection interface for the locking mechanism, and is located on the end face of the through channel, and comprises a docking frame, a rotating shaft, a fixed shaft, a push-pull handle and a docking frame sealing strip. 12 loc hooks and that rotate shaft on the buttjoint frame are driven to be matched or separated by pulling two handle, so that the through-way and the end face of the car body are quickly connected and unknitted, the operation is convenient andquick, and the maintenance efficiency of the through-way is improved.

The invention relates to the field of high-voltage power distribution equipment and particularly relates to a high-voltage power distribution cabinet. The high-voltage power distribution cabinet comprises a storage box, hinges, a door leaf, a heat dissipation structure, a sealing groove, a guide structure, a mounting structure, a support structure and a limiting structure, wherein the heat dissipation structure for realizing heat dissipation is arranged on the side wall of the storage box; the guide structure matched with the mounting structure to slide is arranged in the storage box, and theguide structure is in slide connection with the mounting structure for mounting electrical parts; the sealing groove for sealing and limiting the mounting structure is formed in one end, deviating from the heat dissipation structure, of the storage box; the support structure for guiding is arranged at the bottom end of the mounting structure; and the limiting structure for fixing cables is arranged on the mounting structure. The mounting structure and the door leaf of the high-voltage power distribution cabinet are arranged on the adjacent side walls of the storage box, and the mounting structure is in slide connection with the storage box, so that the mounting structure can conveniently slide out during overhaul and maintenance, several workers can simultaneously overhaul and maintain thehigh-voltage power distribution cabinet conveniently, and the overhaul and maintenance efficiency is greatly improved.

The invention relates to the field of urban illumination management and in particular relates to a street lamp inspection device and a street lamp inspection method based on a mobile terminal. The inspection device comprises a mobile inspection client, a mobile inspection terminal, a mobile inspection server and a wireless communication network, wherein the mobile inspection terminal is connected with the mobile inspection server through the wireless communication network; the mobile inspection client can realize remote control, remote measuring and remote communication with the mobile inspection terminal in a noncontact mode. The mobile inspection terminal is a high-capacity tablet personal computer based on Android or IOS. According to the device, the defects of bad maintenance effect, low efficiency and high maintenance cost in the conventional street lamp inspection can be overcome, the inspection and maintenance efficiencies are obviously improved, the data accuracy is improved, and the maintenance cost is reduced.

The invention discloses a judging method for speed changing box clutch faults. The judging method comprises the following steps: a. preparing a tool pin; b. setting a pressure gage; c. installing the tool pin; and d. measuring the faults. According to the judging method, the tool pin having the specific size is utilized, rapid judging of the speed changing box clutch faults is achieved, maintaining difficulty is reduced, and maintaining efficiency and accuracy are improved.

The invention discloses an electronic installation cabinet device which comprises a loading frame (1). The loading frame (1) is provided with a front installation drawer (2) and a back installation drawer (3) in a front and back symmetry mode. The back end surface of the front installation drawer (2) is provided with a front arc-shaped lock groove (21) at a right position. The front end surface of the back installation drawer (2) is provided with a back arc-shaped lock groove (31) at a right position. The loading frame (1) between the front arc-shaped lock groove (21) and the back arc-shaped lock groove (31) is internally provided with a locking device loading cavity (100) which is equipped with a locking device assembly. The locking device assembly includes a driving gear (4). The right side of the driving gear (4) is engaged with a small gear (5) which is in power connection with the output shaft of a driving motor (6).

The invention provides an on-line monitoring method for the running state of a cigarette making machine, which comprises the following steps: taking a motor, a primary transmission shaft and a secondary transmission shaft of cigarette making machine equipment as key detection points for vibration and temperature detection, and taking a vibration signal and a temperature signal collected on site as monitoring parameters; setting a database server, and performing data storage and processing on the vibration signals and the temperature signals monitored by the key detection points in real time to form a vibration change curve graph and a temperature change curve graph; extracting fault characteristic indexes according to the vibration change curve graph and the temperature change curve graph, wherein the fault characteristic indexes comprise the vibration speed, the vibration displacement, the vibration acceleration, the operation temperature and the temperature change value; and setting an early warning threshold value and an alarm threshold value, performing pre-judgment alarm when the fault characteristic index is greater than the early warning threshold value, and performing fault alarm when the fault characteristic index is greater than the alarm threshold value. The maintenance efficiency can be improved, powerful guarantee is provided for equipment management, and the production and operation cost is reduced.

The invention discloses a novel electronic installation cabinet device which comprises a loading frame (1). A front mounting drawer (2) and a rear mounting drawer (3) are arranged symmetrically before and after the loading frame (1). A front arcuate lock groove (21) is arranged on the right side of the rear end face of the front mounting drawer (2). A rear arcuate lock groove (31) is arranged on the right side of the front end face of the rear mounting drawer (2). A locking device loading cavity (100) is arranged in the loading frame (1) between the front arcuate lock groove (21) and the rear arcuate lock groove (31). A locking device component is arranged in the locking device loading cavity (100). The locking device component comprises a drive gear (4). The right side of the drive gear (4) is engaged with a pinion (5). The pinion (5) is in power connection with the output shaft of a drive motor (6).

The invention relates to the technical field of power electronics and particularly relates to a protection method for a motor ground fault in a frequency converter. After the frequency converter is powered on and a relay is connected, the turn-on time t of an IGBT lower bridge Q2 of each phase IGBT unit or the simultaneous turn-on time t of the IGBT lower bridge Q2 or an IGBT upper bridge Q1 of each phase IGBT unit is allowed to be larger than 0 and smaller than 10 microseconds, whether the motor in the frequency converter has a ground fault is judged according to the output current of each phase IGBT unit, the operation is simple, the judgment is accurate, and an IGBT circuit is not damaged. The invention also discloses a frequency converter applying the above protection method, the circuit structure is simple, whether the motor has a short circuit fault can be accurately and accurately determined, and the IGBT circuit of the frequency converter is not damaged.

The invention relates to the field of network equipment frames, in particular to a network equipment frame for industrial internet big data, which comprises a driving structure, a storage structure, awinding structure, a height adjusting structure, a fixing structure and a rotating structure, one end of the rotating structure for overturning the storage structure is connected to the driving structure; the other end of the rotating structure is connected to the storage structure; when the electrical assembly in the storage structure is overhauled and maintained, the storage structure is drivenby the driving structure to be unfolded, and meanwhile, the unfolded storage structure is driven by the rotating structure to rotate, so that the electrical assembly faces an operator, the storage structure is prevented from shielding the electrical assembly, and the electrical assembly is more convenient and faster to overhaul and maintain; the driving structure is connected to the height adjusting structure, and when the driving structure drives the storage structure to be unfolded, the driving structure drives the height adjusting structure to reduce the height of the storage structure, sothat overhaul and maintenance of electrical components in the storage structure are more convenient and faster.

The invention discloses a fire-fighting alternating current smoke detector capable of being installed easily. The detector comprises a pedestal and a joint portion cooperatively connected to the pedestal. The pedestal is formed by a shell portion, an empty slot and a joint block arranged in the empty slot. A top of the joint block and a central section of a top wall in the empty slot are fixedly connected. A top in the joint block is provided with a first sliding connection groove. Two sides of the joint block are provided with second sliding connection grooves which are extended up and down along the joint block. A first groove portion is arranged in the joint block of a bottom portion of the first sliding connection groove. A power connection hole is arranged in the shell portion of a top portion in the first sliding connection groove. Second groove portions are correspondingly arranged in the shell portion of two sides of the power connection hole. Guide rods which are extended downwardly are arranged in the second groove portions. Downward extension segments of the guide rods enter into the first sliding connection groove and are fixedly connected to a bottom wall in the first sliding connection groove. The guide rods are slidingly connected to telescoping blocks. Two sides of each telescoping block are penetrated into the second sliding connection grooves and are slidingly connected. An outer side of each guide rod on an upper end of each telescoping block is connected to a first elastic component in a wrapped connection mode. Chucking apparatuses are correspondingly arranged in the shell portion of left and right sides of a bottom portion in the empty slot.

The invention relates to the field of papermaking pulping equipment, in particular to papermaking pulping equipment. The papermaking pulping equipment includes a drive structure, a storage box, a feeding hopper, an overhaul structure, a transmission structure, a liquid discharging pipe, a filtration structure, a support structure and a pulping structure; the drive structure is connected with the filtration structure which is used for filtering pulp and arranged inside the storage box, and the transmission structure connected with the drive structure is arranged on the end portion of the filtration structure; the pulping structure which is connected with the transmission structure and is used for conducting secondary pulping on the pulp is arranged inside the storage box. According to the papermaking pulping equipment, the drive structure cooperates with the filtration structure during usage, paper which is incompletely pulped is conveniently filtered out and then is conveyed to the pulping structure, the quality of the pulp after pulping is improved, and therefore the pulping effect is better; due to cooperation of the drive structure and the transmission structure, it is convenient to drive the pulping structure to pulp the incompletely pulped paper again, meanwhile, the pulping contact area of the pulp is increased, and therefore the pulping quality and efficiency are greatlyimproved.

The invention relates to the technical field of switch cabinets, in particular to a low-voltage switch cabinet convenient to overhaul, which comprises a driving structure, a storage structure, a filtering structure, a mounting structure, a limiting structure, a guide structure and a fixing structure. The guide structure used for adjusting the angle and position between the mounting structure and the storage structure is arranged between the mounting structure and the storage structure, and the limiting structure used for limiting the mounting structure is arranged on the storage structure; furthermore, the angle and the direction of the two mounting structures sliding out of the storage structure can be conveniently controlled through the guide structure, so that the two mounting structures are unfolded, electrical components on the mounting structures can be conveniently and quickly overhauled and maintained, and the operation flexibility is greatly improved; and the guide structure can abut against the fixing structure. Furthermore, the fixing structure is conveniently driven through the guide structure, so that the fixing structure is separated from the filtering structure, the filtering structure is more convenient and rapid to disassemble, and the operation flexibility is greatly improved.

The invention provides a thermal pipeline filtering device. The thermal pipeline filtering device comprises a sleeve, two limiting structures, a plugging structure, a filtering structure and a transmission structure, wherein the two limiting structures used for connecting a geothermal pipeline are diagonally and symmetrically fixed on the sleeve; the plugging structure for sealing the sleeve is arranged at one end of the sleeve and comprises a cover plate, a sliding sleeve, a reset spring, a slide bar and a piston; the cover plate and the sleeve are in threaded connection; the sliding sleeve is arranged at one end, which is close to the sleeve, of the cover plate; the filtering structure for filtering scraps is arranged inside the sleeve; the filtering structure comprises an end cover, a containing sleeve, a filtering sleeve and a through hole; and the transmission structure abuts against the containing sleeve and comprises a baffle and a transmission rod. The thermal pipeline filtering device provided by the invention has the advantages that a scrap filtering effect is excellent, the geothermal pipeline is convenient to repair and maintain, and plugging performance of the geothermal pipeline is good.

The invention relates to a method which utilizes a fine particle coal dehydration recovery system for coal tailings. The fine particle coal dehydration recovery system for the coal tailings comprisesa cleaned coal dehydration recovery subsystem and a middling coal dehydration recovery subsystem; the cleaned coal dehydration recovery subsystem is set to enable cleaned coal magnetic separated tailings to pass through a first laminated high-frequency screen to obtain primary rough cleaned coal and rough cleaned coal screen underflow, input the primary rough cleaned coal into a rough cleaned coalcentrifugal machine to carry out centrifugal separation to obtain rough cleaned coal and enable the rough cleaned coal screen underflow to pass through a flotation machine and a press filter to obtain flotation cleaned coal; and the middling coal dehydration recovery subsystem is set to enable middling coal magnetic separated tailings to pass through a second laminated high-frequency screen to obtain primary middling coal and middling coal screen underflow, enable the primary middling coal to pass through a middling coal centrifugal machine to separate out middling coal and input the middlingcoal screen underflow into a concentrator to obtain concentrated coal. The fine particle coal dehydration recovery system for the coal tailings has the beneficial effects that a phenomenon of ''material channeling'' water leakage of a vibration curved screen is solved; the process flow is simplified; energy consumption is saved; economic benefits are increased; and a utilization rate of water resources is improved.

The invention discloses an improved new-energy automobile storage battery device. The improved new-energy automobile storage battery device comprises an engine base and an installing box, wherein theengine base is fixedly arranged in an engine room of an automobile; the installing box is matched with the engine base for use; an installing groove with an upward opening part is formed in the installing box; a storage battery is arranged in the installing groove; handles are arranged at the top part of the storage battery in a left-right corresponding way; first sliding grooves which are in left-right corresponding arrangement and are provided with downward opening parts are formed in the installing box arranged at the left side and the right side of the installing groove; sliding columns which can smoothly slide up and down are arranged in the first sliding grooves; upper magnetic strips and lower magnetic strips are respectively and fixedly arranged on the upper ends and the lower endsof the sliding columns; locking grooves of which the left parts and the right parts are communicated are formed in the lower ends of the sliding columns; first magnetic induction devices are fixedlyarranged in the upper end walls of the first sliding grooves; an electric connecting piece electrically connected with the magnetic induction devices is fixedly arranged on the left end surface of theinstalling box; a clamping groove stretching left and right is formed in the bottom end surface of the installing box.

The invention provides an industrial internet intelligent control system convenient to maintain and a using method thereof, and belongs to the field of industrial internet intelligent control devices. The system comprises a box body; a plurality of supporting plates that are arranged between the upper inner wall and the lower inner wall of the box body in parallel from top to bottom, and an airflow hole is formed in the top of each supporting plate; a plurality of integrated control units which are fixedly connected to the tops of the multiple supporting plates correspondingly, wherein the two rotating shafts drive the two power rolling wheels to roll at the tops of the two sliding sleeves, and the two power rolling wheels pushes the four auxiliary rolling wheels to slide in the two sliding sleeves, so that the supporting plate is pushed outwards from the inside of the box body, the damaged integrated control unit is pushed out. According to the structure, the damaged integrated control unit can be pushed out, single-layer maintenance can be carried out when a single integrated control unit is damaged, and overall power-off maintenance is not needed; the structure simplifies maintenance, facilitates later maintenance, and improves the maintenance efficiency.