7results about How to "Avoid cross influence" patented technology

This invention belongs to the field of rail vehicle technology. It proposes a method and system for adjusting the alignment of workpieces during the intermediate stage of bogie welding. Based on the design 3D model of the bogie workpiece and the process scaling requirements, key dimensions are selected and adjusted to construct a virtual intermediate model. Feature points are collected from the key feature surfaces of the virtual intermediate model to obtain reference values ​​for each feature point. A 3D scan of the actual bogie workpiece during the intermediate welding stage is performed to acquire point cloud data. Feature points are collected and processed from the corresponding key feature surfaces of the point cloud data to obtain the actual values ​​of each feature point. By comparing the reference values ​​and actual values ​​of each feature point, the deviation of each feature point is obtained. For the key dimensions of the bogie workpiece, a scribing weight mechanism is introduced to assign weight priorities to each key dimension. Based on the deviation of each feature point and the weight priorities, the position of the baseline of the key feature surface is adjusted. This invention achieves a closed-loop process from model adaptation and data comparison to baseline adjustment.

The utility model provides a kind of ground impedance detection device based on harmonic analysis, belong to ground impedance detection technical field, including main frame assembly, the inner wall of main frame assembly is connected with ground impedance detector, the outer wall of main frame assembly is fixedly connected with limiting component, the outer wall of main frame assembly is provided with honing component, the outer wall of main frame assembly is provided with side support component, the outer wall of main frame assembly is provided with take-up assembly;The utility model is provided with take-up assembly, in use, by take-up motor driving take-up rod rotation, and then realize the orderly winding of the wire connected with probe or ground electrode test point, avoid multiple wires between each other cross each other, improve the accurate detection of ground impedance detector in field use;By the setting of limiting component, in use, start and control rotary motor use, drive press plate rotation, so that multiple spring barrels are above ground impedance detector.

The invention relates to the field of fabrics, provides a microcapsule color-changeable functional fabric, and solves the defect that a color-changeable fabric in the prior art is not washable. Which comprises a fabric body coated with a phase change microcapsule, and is characterized in that the phase change microcapsule is provided with a first cavity and a second cavity which are independently distributed at an interval, a photo-thermal double-response color-changing compound is packaged in the first cavity, and a photo-thermal double-response color-changing compound is packaged in the second cavity. The photo-thermal double-response color-changing compound is composed of a spiropyrane photosensitizer and a thermochromic liquid crystal material according to the weight ratio of 1: 1-1: 2, the color-changing response wavelength range of the photo-thermal double-response color-changing compound is 300-700 nm, and the color-changing temperature interval is 20-45 DEG C; and a temperature-adjusting and energy-storing compound is packaged in the second chamber.

The invention discloses a liquid level adjustable pipeline suitable for on-line monitoring of fresh milk, the liquid level adjustable pipeline comprises a main body pipeline, the main body pipeline is also provided with an upper monitoring port and a lower monitoring port, the upper monitoring port is provided with a shading unit, and the shading unit comprises a shading sheet; the main body pipeline is provided with a lower installation pipe opening formed by extending outwards at the lower monitoring opening, a light-transmitting unit is arranged at the lower monitoring opening and comprises a light-transmitting piece and a small magnetic ring, and the liquid level control system comprises a large magnetic ring coupled with the small magnetic ring in a magnetic attraction mode and a driving unit. The small magnetic ring drives the light-transmitting piece to synchronously move in the axial direction of the lower installation pipe opening in the moving process. The light-transmitting piece is driven through magnetism between the large magnetic ring outside the pipeline and the small magnetic ring inside the pipeline, dynamic adjustment of the liquid level height is achieved, and detection errors caused by flow velocity fluctuation are avoided. The height of the light-transmitting piece can be rapidly increased when the dairy cow is replaced, so that residual liquid is rapidly discharged, and the cross influence of different batches of fresh milk is avoided.

The utility model discloses a kind of electric drive assembly and electric two-wheeled vehicle, comprising: first casing, first cooling flow passage is equipped in it;Speed reducer body, is installed in the first casing;Second casing, with the first casing detachably connected, second cooling flow passage is equipped in it;Controller, is installed in the second casing, and with the first cooling flow passage thermal coupling;Motor body, is installed in the second casing, and with the second cooling flow passage thermal coupling;Wherein, the first cooling flow passage and the second cooling flow passage are formed by casing joint surface for the continuous cooling circuit of cooling liquid circulation flow circulation.The utility model uses above structure, cooling performance is good, and motor body, controller and speed reducer body can be cooled simultaneously.

This invention discloses a sound-generating module and electronic device, relating to the field of electroacoustic transduction technology. The sound-generating module's sound-generating unit has a magnetic circuit system with a magnetic gap and a through-hole. A first diaphragm assembly and a second diaphragm assembly of the vibration system are respectively located on opposite sides of the magnetic circuit system. A connector passes through the through-hole and connects to the first and second diaphragm assemblies. The periphery of a diaphragm is connected to the magnetic circuit system, and the diaphragm is connected to the connector to seal the through-hole. A first rear cavity is formed between the first diaphragm assembly, the magnetic circuit system, and the diaphragm. A first front cavity is formed between the second diaphragm assembly, the magnetic circuit system, and the diaphragm. A second front cavity is formed between the module housing and the first diaphragm assembly. A second rear cavity is formed between the module housing and the second diaphragm assembly. The module housing has a module sound hole communicating with the second front cavity, and the module sound hole communicates with the first front cavity through the sound outlet of the sound-generating unit. This invention's sound-generating module increases the effective sound-generating area without increasing the product size.

This invention provides a permeability testing device for red mud-based roadbed fillers, relating to the field of waste utilization technology for red mud-based roadbed fillers. The device includes a permeability testing platform, which is a three-layer platform consisting of a base, a middle support plate, and an upper support plate. A control center is located on the right side of the platform. A measuring cup is located above the base. Two reinforcing motors are fixedly connected to the bottom of the middle support plate. A combined support frame is bolted to the top of the middle support plate. A flexible testing channel is fixedly installed inside the combined support frame. An elastic converging tube is fitted over the flexible testing channel, with its upper and lower edges folded outwards to form converging flanges. A collection hopper is inserted into the center of the middle support plate. This invention's testing device exhibits low testing deviation, good testing stability and consistency, high testing efficiency, automatic cleaning capability, simple structure, low cost, and suitability for industrial production.