33results about How to "Deformation Monitoring" patented technology

The invention discloses a monitoring device for internal deformation and fine particle loss of a track subgrade, and relates to the field of monitoring devices; it includes an internal damage monitoring device arranged in the ballast layer of the roadbed, and the internal damage monitoring device is connected with a resistance collector through a wire. The resistance collector is wirelessly connected with a resistance signal receiver. The device for monitoring the internal deformation and loss of fine particles of the rail subgrade provided by the present invention can realize real-time and continuous monitoring of the deformation and loss of fine particles in the railway subgrade under rail traffic load under remote conditions, and is economical and convenient, and has high practical value.

The invention belongs to the field of a volume pump, and particularly relates to a convenient-to-dismount diaphragm pump with the advantages that the monitoring can be realized in proper time, and a diaphragm leaf can be fast dismounted and replaced on line. The convenient-to-dismount diaphragm pump comprises a pump body and the diaphragm leaf, wherein liquid inlet and outlet holes and hydraulic holes are respectively formed in the pump wall of the pump body, a located pump cavity of the liquid inlet and outlet holes and a located pump cavity of the hydraulic holes are separated through the diaphragm leaf, the pump body also comprises a repair hole, the repair hole is sealed by an end cover, the appearance of the diaphragm leaf is of a sleeve-shaped structure, a pipe opening formed at one end of the diaphragm leaf is fixedly connected with the hole end surface of the hydraulic holes through screw bolts, a pipe opening formed in the other end of the diaphragm leaf extends towards the repair hole and is provided with an outer flange, the outer flange is arranged in a way of being matched with the surfaces between the hole ends, positioned at the outer wall parts of the the pump body, of the repair hole, and the end cover is pressed on the outer flange and is arranged in a way of being fixedly connected with screw bolts arranged between the pump walls of the pump body. The convenient-to-dismount diaphragm pump has the advantages that the monitoring and dismounting problems of the exiting conventional diaphragm pump can be effectively solved, the dismounting convenience and the maintenance replacement efficiency are high, and the work intensity of maintenance personnel can be greatly reduced.

The invention discloses a large hydraulic press crossbeam parallel control system. The large hydraulic press crossbeam parallel control system comprises a hydraulic press crossbeam physical system and an upper computer virtual system which are connected through communication modules. The hydraulic press crossbeam physical system comprises a hydraulic press crossbeam, a plurality of displacement sensors and a plurality of pressure sensors which are arranged at stress concentration positions of the hydraulic press crossbeam, and a PLC; both the displacement sensors and the pressure sensors are connected with the PLC; the upper computer virtual system comprises failure service information and management control information which are directly in communication with and in handshake with the PLC, hydraulic press crossbeam finite element analysis modules are transmitted to hydraulic press crossbeam ideal digital analogy, then the management control information is obtained through a contrastive analysis, and the management control information is in handshake with the PLC through the communication modules. According to the large hydraulic press crossbeam parallel control system, fault emergency monitoring efficiency is improved, and useful empirical data for optimization design of the large hydraulic press in later period, compensation of deflection deformation and the like are provided.

The invention discloses a device for automatic measurement of tunnel section deformation. The device comprises a plurality of measurement rod pieces and a fixed base, wherein the two ends of each measurement rod piece are fixed to the wall of a tunnel through the fixed base, and the measurement rod pieces are connected to form a folded line outline of the section of the tunnel; each measurement rod piece is provided with a tilt angle sensor, the length of each measurement rod piece changes along with the deformation of the section of the tunnel, and a displacement sensor is arranged on each measurement rod piece; the change of the length of each measurement rod piece is measured through the displacement sensors. According to the device and method for automatic measurement of tunnel section deformation, the telescopic measurement rod pieces are adaptive to tunnel section deformation; the change of the length of each measurement rod piece is measured through the displacement sensors; the three-dimensional angle of each measurement rod piece is measured through the tilt angle sensors, the fitted curve of the section of the tunnel is obtained through the measurement rod pieces, and then tunnel section deformation is monitored.

The invention relates to an online monitoring system for a GIS busbar barrel. The online monitoring system comprises a monitoring terminal arranged on the barrel and a data processing unit connected with the monitoring terminal, wherein the monitoring terminal comprises a pull rod resistance displacement rule used for detecting the axial displacement of a barrel wall relative to a support, a stay cord displacement sensor used for detecting the displacement of the barrel relative to the ground, and a three-axis acceleration sensor used for detecting the axial and radial warping degrees of the barrel relative to a horizontal plane. By adopting the monitoring system, real-time monitoring can be realized, routing inspection work of workers is reduced, and the labor cost is reduced. Meanwhile, the operation safety of a busbar is improved, accidents, such as cracking of a busbar support, can be effectively prevented, and safety hazards and economic loss caused by bad breakdown repair can be avoided. The system is particularly applied to northwestern districts with a high diurnal temperature difference, high altitude regions, tundra regions and southern geological sedimentation districts.

The invention discloses an underground chamber whole-section deformation automatic monitoring device and a method involved in the device. The underground chamber whole-section deformation automatic monitoring device comprises an angle measurement mechanism and a distance measurement mechanism. The angle measurement mechanism is provided with a pointer, a dial, a gradienter, a base and a fixing hole. The distance measurement mechanism is provided with a rotary body, a bearing, a rotary rod, a fixing nut, a laser probe and a displayer. Through efficient coordination of the angle measurement mechanism and the distance measurement mechanism, deformation of any point of the chamber section, the over-excavated volume and the excavated volume of the chamber section at the monitoring point and the supporting thickness of a gunite layer of a chamber can be measured, and the purpose that deformation of each portion of the chamber is accurately, efficiently and rapidly measured is achieved.

The invention provides a permeability test experimental system of low-permeability clay, and belongs to the field of geotechnique clay permeability tests. The system comprises a water head supply unitcapable of supplying tiny water heads and high-pressure water heads, a sample treatment unit for clamping and pressurizing samples, a water supply and storage unit for providing percolating fluid andcollecting the fluid, a data acquiring and processing unit for acquiring and processing experimental data, and an incubator for controlling experimental environments. According to the system, the principles of variable water heads and constant water heads of the geotechnique permeability tests are combined, the modern data acquisition technology is introduced, and the test precision is effectively improved. On the aspect of scientific research, a device can provide temperatures, loads and water head differences to be used as variables, when low-permeability clay samples with different water contents are provided, the water contents can serve as variables for permeability research of the samples, and application of conversion between the constant water heads and the variable water heads can be carried out. On the aspect of engineering parameter requirements, the device can adopt the high-pressure variable water heads to test the permeability coefficient of the low-permeability clay, and the experimental time is effectively shortened.

The present invention relates to a spring for a preloaded bearing, in particular a rolling bearing, with an elastomeric core, wherein the elastomer core comprises a support sleeve of a hardenable material is disposed cohesively, and is formed less elastic than the elastomeric core. The present invention also relates to a structural component, which comprises a housing member, a bearing and the spring.

The invention discloses a method for real-time prediction of the risk of tower sweeping when blades pass through the tower. By installing a millimeter-wave radar at a preset position at the tail of the wind turbine nacelle, reliable measurement information is collected and a clearance model of the wind turbine tower is established; using millimeter-wave The radar detects the overall blade passing through the designated area in the rotation plane of the wind rotor to obtain the spatial position and deformation velocity information of the target point when the blade passes through the designated area in the rotation plane of the wind rotor, and calculates the clearance value at each target point and each target point The amount of deformation when passing through the tower, and assess the risk of blade sweeping the tower, and make different control actions according to the risk level. The invention can predict the tower-sweeping risk when the blades pass through the tower for a certain time in advance, and simultaneously monitor the clearance values ​​of multiple target points and the deformation when passing through the tower, thereby improving the reliability and safety of the system.