6results about How to "Facilitate failure analysis" patented technology

The utility model relates to a kind of three-phase voltage transformers of compartment, including shell and first, second single-phase mutual inductor, the top of shell is arranged three-phase, each phase includes a root of fusing tube, shell also includes three internal fusing tubes, the inner wall of the tube bottom of each internal fusing tube is arranged with spring contact finger, fuse is placed in tube, second nut is installed in tube mouth, the primary winding of first, second single-phase mutual inductor is electrically connected with first to fourth electrically conductive pole respectively, define three fusing tubes as first to third fusing tube, the other end of first electrically conductive pole is electrically connected with the spring contact finger of first fusing tube, the other end of second electrically conductive pole, third electrically conductive pole is electrically connected with the spring contact finger of second fusing tube, the other end of fourth electrically conductive pole is electrically connected with the spring contact finger of third fusing tube. Utilize a kind of three-phase voltage transformers of compartment designed by the utility model, can solve the problem of traditional three-phase voltage transformer common fusing tube, compact structure, increased operation and maintenance difficulty, reduced replacement efficiency.

The present application relates to servo motor production test technical field, especially relates to a kind of encoder detection method, device and storage medium, the method comprises: establishing the design requirement parameter library stored according to motor model;Connecting motor to be detected and calling corresponding preset design index;Control motor low-speed no-load rotation;Based on the same hardware timer, encoder A / B / Z signal and hall U / V / W signal are synchronously collected, and synchronous timing data is generated;Synchronous timing data is judged effectively;Actual encoder line number, actual electrical phase and actual hall phase are calculated;Actual parameter is compared with preset design index item by item, all satisfy when judging qualified, any item does not satisfy when judging unqualified and recording deviation.The present application can improve servo motor encoder detection efficiency and phase determination accuracy, adapt to multi-model mixed-line production, and realize detection process traceability.

A control device for multiple mine hoists relates to the technical field of mine hoist control and comprises an operation table composed of a control unit, a PLC (programmable logic controller) unit, a touch screen and a router, the PLC unit is connected with the control unit and receives signal instructions sent by the control unit, and the PLC unit is connected with a plurality of hoist master control systems through the router; the PLC unit is further connected with a touch screen used for displaying operation state parameters of all the elevator main control systems. According to the device, one operation table is remotely operated so as to control the running state of a plurality of elevator main control systems, an operator does not need to frequently move and operate among a plurality of elevators, and the working efficiency is improved; operators work in a centralized control center, the influence of severe environment is avoided, field operation is reduced, the number of elevator operators is reduced, and high economic benefits are achieved.

The utility model discloses a wafer inlet and outlet position detection device for an ion implantation machine in the technical field of semiconductor manufacturing equipment, which comprises a sensor support fixed above a lifting platform, a central groove is arranged on the surface of the sensor support, a plurality of detection grooves are distributed on the peripheral side of the central groove, and the detection grooves are communicated with the lifting platform. A plurality of displacement sensors matched with the detection grooves are fixed to the sensor support through a mounting frame, each displacement sensor is located above the detection grooves, and the mounting frame comprises an L-shaped main mounting frame and an L-shaped auxiliary mounting frame mounted on one side of the L-shaped main mounting frame; and the displacement sensor is installed on the surface of the L-shaped auxiliary installation frame through a sensor installation support, the displacement sensor is electrically connected with a PLC control cabinet, and the PLC control cabinet is electrically connected with the machine table and the touch screen. According to the utility model, tiny deviation of the wafer in the transmission process can be monitored in real time and alarm is triggered, so that collision between the wafer and a manipulator or a sealing door is avoided, and production safety and equipment stability are guaranteed.

The application provides a kind of support extended vehicle-mounted multi-channel camera simulation method and system.Method includes: obtaining specified picture or video data, generating the original picture data of each frame, and according to the format of PPI, it is packed into PPI data format, and the ECC and CRC data required for each line are calculated;According to the resolution size of each camera, the required simulation simulation platform memory space is generated;The generated PPI, ECC and CRC data are injected into the memory space;According to the output state of the platform, update the data in the memory space to the next frame data during frame blanking;Using the PPI format module of the platform, according to the configuration of each channel, the data is divided into different Lane according to PPI format, and is output to CSI2 HOST according to PPI format.The application can simulate different types of cameras and their parameters.

This invention relates to a test device and method for testing the leakage of metal seal rings in turbochargers, belonging to the field of turbocharger performance testing technology. It includes a simplified turbine housing, a simplified bearing housing, bolts, a pressure plate, and a housing. The simplified turbine housing and the simplified bearing housing are mated to form a pressing surface. The dimensions, roughness, seal ring installation position, and heat shield structure of the simplified turbine housing are consistent with the turbocharger under test. The seal ring installation position is consistent with the turbocharger. The bolts are tightened to the turbocharger installation torque. The housing is fitted over the pressure plate and bolts, and its bottom is pressed against the simplified bearing housing. The junction is welded with a circumferential weld to form a sealed cavity with no leakage except at the test point. The simplified turbine housing is provided with sensor holes and measurement holes. This invention simulates the actual installation conditions of the turbocharger, eliminates interference from non-seal ring leakage, achieves accurate measurement of leakage performance, and prevents secondary damage or scratches to the seal ring during disassembly after the test.