70results about How to "Reduce maintenance downtime" patented technology

The system includes a field working station and a remote service center. The field working station runs the OPC data collection module and the network data releasing module conforming to TCP/IP protocol by using the OPC data collection and network data releasing application program, and is connected to the field control center through OPC interface. The remote service center runs the network terminal module conforming to TCP/IP protocol, the remote OPC server module and the remote control module supporting OPC interface by using network terminal application program and the remote OPC service application program. The network communication terminal module receives the field data released by the network data releasing module, and then releases the received data to the remote OPC service module by which the data is transmitted to the remote monitoring module.

The invention discloses a Gaussian process modeling based wind turbine shafting state monitoring method in the field of wind turbine state monitoring. The technical scheme includes: collecting values of normal temperature of a bearing to be monitored and of correlated variables of the bearing temperature from historical data of a wind turbine SCADA system to form a bearing temperature vector set; building a bearing temperature model by the aid of a Gaussian process regression method; using the bearing temperature model for monitoring the bearing in real time, and using difference between the measured bearing temperature and the predicated temperature outputted by the model as predicated model residual; comparing the predicated model residual with a set residual threshold, and when the predicated model residual is larger than the residual threshold, judging the bearing to be abnormal; and otherwise, judging the bearing to be in a normal state. The method has the advantages that under the operation conditions of random changing of wind speed and time varying of rotating speed of a wind turbine shafting, states of bearings on the wind turbine shafting are analyzed and judged accurately, bearing fault alarm is sent timely, and maintenance complexity and cost are lowered.

This invention relates to auto-control field, which in detail is used to a wireless LAN on-site bus net control station. It comprises main control station and I/O module, wherein, its main control station runs the wireless LAN on-site bus agreements and accomplishes the distribution I/O control through I/O module controller and receives and transmits data to Ethernet through wireless LAN transmission module. The I/O module is to accomplish the collection and conversion of the on-site signals. It is based on intelligence control device of the wireless Ethernet and turns the DCS total distributed system structure into new type of total distribution structure to completely distribute the control into the on site by network control station. This invention especially applies to old industry control system reconstruction to make it possible for old enterprises to enter the new time of on-site bus.

The invention relates to a bus intelligent control system, belonging to the technical field of automatic control of power distribution. The system comprises a bus trunk system and intelligent type complete equipment, wherein the bus trunk system comprises a set of bus trunk unit and a bus branching unit which is electrically connected with the corresponding bus trunk unit through a bus-bar pile head; the intelligent type complete equipment mainly comprises a monitoring sensor piece, a CPU, a CAN controller and a CAN transceiver; the monitoring sensor piece comprises a current transformer, a voltage measuring device and a temperature sensor; output terminals of the current transformer, the voltage measuring device and the temperature sensor are respectively connected with corresponding signal input terminal of the CPU; a communication terminal of the CPU is connected with a CAN bus which is communicated with an upper computer through the CAN controller and the CAN transceiver, and a control output terminal is connected with a controlled terminal of a motor switch. The invention organically combines a bus duct technology and an intelligent power grid, and realizes the automatic control function on the power distribution system.

A blue-tooth wireless sensor includes a data collection module, a blue-tooth wireless moule further processing and transmitting data wirelessly, a program control module responsible for data collection, process and data communication with a level device. This device is mainly used in wireless data collection under industrial field control, it can set up connection and carry out data exchange with any device in conformity with blue-tooth wireless sensor stipulations and forms a wireless acess system with the level device by forming networks with multiple sensors to be used in many fields difficult of laying out cables.

The invention discloses a heat collection device for recycling waste heat in the calcium carbide cooling process. The heat collection device comprises a heat collection module. The heat collection module comprises a main frame, a heat exchange pipe bundle assembly and a circulating fan assembly. The circulating fan assembly is installed on the top of the main frame. The main frame is fixed to an installation face, and the section of the main frame is of an n structure. A cavity defined by the main frame forms a channel through which a carrier vehicle passes. The tunnel heat collection device for recycling waste heat in the calcium carbide cooling process has the advantages of not changing the original production technology process or production site layout, being compact and reasonable in structure and easy to install, overhaul and replace, saving device maintenance cost and the like; on-site maintenance workloads are reduced, the device maintenance halt time is shortened, and production cost is reduced.

The invention relates to a harvester control system, belonging to the technical field of the harvester and comprising a starting system, a charging system and an illuminating system. The harvester control system is characterized in that the control system comprises a controller, a steering control and indication system, an electric control harvesting system, an electric control grain conveying system, a monitoring instrument of a whole machine and an alarm system, wherein the controller is connected with and controls the steering control and indication system, the electric control harvesting system, the electric control grain conveying system, the monitoring instrument of the whole machine and the alarm system. The harvester control system has the advantages of functions of concentrated monitoring, display, control and alarming, improved automation, strong adaptability, convenient maintenance, simple and comfortable operation, low labor intensity and high operation efficiency and the like.

The invention relates to the technical field of afterheat utilization of waste heat exhaust gas, and discloses detachable pipe bundle flue type heat collection equipment. The detachable pipe bundle flue type heat collection equipment is formed by communicating an exhaust gas air flue (3) of a heat exchange pipe bundle assembly positioned in a framework assembly (2) with an exhaust gas outlet air flue (11) by an exhaust gas inlet air flue (1), wherein the heat exchange pipe bundle assembly at least comprises a plurality of detachable heat exchange pipe bundle units (12) which are connected in series along the flue direction. The detachable pipe bundle flue type heat collection equipment has the characteristics of compact and reasonable structure, convenience in repairing and replacement, reduction of equipment repairing cost and the like; the workload of on-site repairing is reduced, the downtime for equipment repairing is shortened, and the production cost is reduced; meanwhile, high product competitiveness can be created for the flue type heat collection equipment in the field of industrial afterheat recycling, and the detachable pipe bundle flue type heat collection equipment can be better applied and popularized in a low-temperature exhaust gas afterheat recycling system, and has a considerable prospect.

The invention comprises a main control module and a radio communication module. Wherein the main control module runs the EPA industrial Ethernet field bus communication protocol stack, and the radio communication module takes charge of the communication to the other radio field devices, provides seamless connection to Ethernet and through USB interface circuit connects to the main control module to commonly build the EPA control network.

The invention discloses a disc screen. The disc screen comprises a frame of a sealed box body structure. A feed port is formed in an upper sealing plate of the frame, multiple separation openings areformed in a lower sealing plate, and connecting seats are connected below two upper end beams of the frame. Each screening roller comprises a mandrel, wherein a regular hexagonal spindle section is arranged in the middle of the mandrel, the positioning section of the mandrel is rotationally connected to the lower surfaces of the connecting seats through mounted bearings, double rows of chain wheels are fixed to the transmission section of the mandrel, and the double rows of chain wheels are in transmission through a single-row chain. Another transmission section of the mandrel on the outermostside is connected with a reduction motor through a coupler, multiple regular hexagonal discs are arranged at equal intervals and distributed on the spindle sections by periodically spirally rotatingat certain angles, and the discs of the former screening roller are located in the gap between every two adjacent discs in the later screening roller. The disc screen has the effects that the regularhexagonal discs are long in service life, the maintenance interruption time is shortened, the equipment utilization rate is high, mounting is convenient, and the screening effect is good.

A full-automatic multi-long-aluminum-rod translation type heating production line comprises a furnace body. The furnace body is provided with a heating chamber. The furnace body further comprises a feeding device, a discharging device, a mounting platform, a heating platform and a linkage frame. The heating platform is arranged in the heating chamber. Stabilizing grooves are formed in the heating platform. A linkage position adjusting hole is formed in the bottom face of the furnace body. The linkage frame comprises a lifting frame and a translation frame. A lifting device and a translation device are arranged in the mounting platform. A connecting rod is arranged on the upper side of the translation frame. The connecting rod penetrates the linkage position adjusting hole and is fixedly connected with the heating platform. According to the full-automatic multi-long-aluminum-rod translation type heating production line, lifting and translation of the heating platform in the heating chamber can be achieved due to the arrangement of the linkage frame, aluminum rods are moved by the adoption of the translation type, and the heating production line has the beneficial effects that rod moving is stable, the vibration is small and the failure rate is low; due to the fact that the aluminum rods are transferred stably, the service life of the furnace body is prolonged, and besides, the problem that the aluminum rods are stuck or stacked is solved; and by the adoption of the production line, the maintenance downtime is shortened, and the production cost, the equipment maintenance cost and the like are lowered.

The invention relates to a rotary press roller clutch press with a novel eccentric bushing device. An eccentric bushing cover of a rubber roller A is arranged on the outer wall of an eccentric bushing of the rubber roller A; an A type wallboard hole bushing is arranged on the inner wall of an A type wallboard hole; a support bearing of the rubber roller A is mounted in an eccentric bushing inner hole of the rubber roller A; a roller shaft head of the rubber roller A is mounted in a support bearing inner hole of the rubber roller A; the eccentric bushing cover of the rubber roller A fits the A type wallboard hole bushing; an eccentric bushing cover of a plate cylinder B is arranged on the outer wall of an eccentric bushing of the plate cylinder B; a B type wallboard hole bushing is arranged on the inner wall of a B type wallboard hole; a support bearing of the plate cylinder B is mounted in an eccentric bushing inner hole of the plate cylinder B; a roller shaft head of the plate cylinder B is mounted in a support bearing inner hole of the plate cylinder B; and the eccentric bushing cover of the plate cylinder B fits the B type wallboard hole bushing. The rotary press roller clutch press with novel eccentric bushing device simplifies the repairing process of the eccentric bushing of the rubber roller A and the eccentric bushing of the plate cylinder B, shortens the repairing stop time, and guarantees the printing quality.

The invention discloses a low-cost field bus remote input-output system comprising a control module and an I/O (Input/Output) module; a control program is stored in the control module; the control module is used for managing the I/O module through an internal bus; the acquisition and the conversion of field signals are finished by the I/O module; and field equipment is controlled by the control module through the I/O module. An MODBUS communication protocol is stored in the control module which operates an MODBUS-RTU protocol stack; the MODBUS communication protocol comprises an MODBUS slave station protocol and an MODBUS master station protocol; and the MODBUS master station protocol realizes data acquisition and remote monitoring of the field equipment through the MODBUS slave station protocol. The low-cost field bus remote input-output system is simple in structure and convenient to install. Due to the adoption of RS-485 bus, the workload for design and installation is reduced, and the investment is saved. The low-cost field bus remote input-output system can realize real-time monitoring and controlling functions and has rather high real-time property and reliability.

A flexible leak testing machine for tightness testing of a cylinder head, an engine block or similar workpiece has at least one sealing plate, a machine frame with at least one workpiece holding device for the workpiece and an adjusting device with a first drive for bringing together the workpiece and the sealing plate into a test position. The leak testing machine is flexibly usable in that it includes a changeover device for sealing plates. The changeover device has an adjustable holding arrangement on the machine frame, with sealing plate holders and an associated drive for sealing plate changeover.

The invention relates to a safety circuit voltage diagnosis system and method for an elevator. The system involves a voltage-stabilized power supply, an elevator safety circuit, a contactor and a main control module, wherein the front end of the elevator safety circuit is connected with the output of the voltage-stabilized power supply, the tail end of the elevator safety circuit is connected with one end of a contactor coil, the other end of the contactor coil is connected with a driving port of the main control module, a contactor contact is connected to an input port of the main control module, and the main control module is used for driving the contactor contact to be attracted, generating attraction time of the contactor contact and judging whether the difference value between the attraction time and reference time obtained through self-learning is larger than a preset time threshold value or not, if not, it is judged that the voltage drop of the elevator safety circuit is normal, and if yes, it is judged that the voltage drop of the elevator safety circuit is abnormal, and warning information is sent out. According to the safety circuit voltage diagnosis system, the elevator can automatically detect whether the voltage drop of the elevator safety circuit is abnormal or not so that maintenance personnel can check and maintain an electrical safety switch in the elevator safety circuit in time.

The invention is directed to a material for coating iron ore pelletizing disks and drums and a constructive arrangement for pelletizing disks and drums that is comprised of a mixture of binders with ores (that may or not be ground) of the group consisting of iron, manganese or others, the inclusion of fluxes being also provided. The bottom (1) of the disk or drum (5) is coated with a cold cure coating material, vegetal oils, minerals and/or gel-forming products in order to form a bottom layer (2) that may or not be on the surface, and polyethylene plates (7) to aid in the separation of the fines from the pellets (6) can also be incorporated into the inner perimetral edge (6) of said pelletizing disk or drum (5).

The invention provides an intelligent speed reducer. On the basis of a traditional speed reducer, modern intelligent control means such as the latest sensor technology and the communication and information technology are comprehensively applied, and the running state of the speed reducer is monitored in real time. An input end assembly is provided with a first sensor group corresponding to the connection position of each component, and the first sensor group receives corresponding parameters of vibration, torque and force; an output end assembly is provided with a second sensor group corresponding to the connection position of each component, and the first sensor group receives corresponding parameters of vibration, torque and force; gratings are arranged in the input end assembly and theoutput end assembly, and the gratings are used for analyzing the angle difference between the input rotation and the output rotation of the speed reducer and detecting transmission errors and differential stability; and a first signal receiver is further arranged on an outer shell of the input end assembly, and a second signal receiver is further arranged on an outer shell of the output end assembly.

The invention discloses a horizontal vacuum belt type filter which comprises a rack, a driving roller, a driven roller, a belt support system, an annular belt, a piece of filtering cloth, a vacuum boxmechanism and a feeder, wherein the belt support system comprises a support track and a support track sliding strip; the vacuum box mechanism comprises vacuum boxes, liquid collection branch tubes, airbags, push discs, mounting platforms and vacuum box chutes; the vacuum boxes consist of multiple sections of vacuum box bodies, vacuum box flanges, front vacuum box guides, rear vacuum box guides and vacuum box elbows; the feeder comprises a box-shaped overflowing mechanism, an upper cover and a feeding tube; and the box-shaped overflowing mechanism comprises a box-shaped overflowing cavity, a storage tank, a front buffer tank, a rear buffer tank, a front adjusting plate, a rear adjusting plate, a front inner support, a rear inner support, a front cover plate, a rear cover plate, a left sidesupport and a right side support. By adopting the horizontal vacuum belt type filter, an excellent filtering effect can be ensured, the overall deformation resistance of a vacuum box is improved in the operation process, the feeding amount can be increased, product consumption in the filtering process is reduced, and uniform feeding can be ensured.