7results about How to "Meet practical application requirements" patented technology

The invention relates to a precision detection device for gear processing, which is suitable for detecting the dynamic performance and single tooth precision of a gear, and comprises a base, a rotating bracket, a fixed block, a motor, a reduction gearbox, a test gear, a to-be-tested gear, a main measuring rod, a plurality of measuring rods and the like. High-precision detection of gear dynamic balance, vibration parameters and the tooth outer end and the contour line of a single gear is achieved, the reduction gearbox reduces the rotating speed of the gear and strengthens torque control, and the gear thickness difference design is matched, so that the multiple measuring rods can slide along the tooth outer end of the gear, tooth surface deformation and the contact state are accurately detected, and the device is made of high-carbon low-alloy tool steel. The gear detection device has high strength and wear resistance, adapts to various gear specifications, can output detection data and analysis results in real time, is simple to operate, high in detection precision and high in applicability, and can be widely applied to the fields of gear manufacturing, quality detection and maintenance.

A depth camera-based high-precision three-dimensional size measurement system disclosed by the present invention comprises a point cloud acquisition system and an industrial personal computer system, the point cloud acquisition system is in signal connection with the industrial personal computer system, the industrial personal computer system is also in signal connection with an upper computer, and the point cloud acquisition system can be installed or detached at a target measurement station. The point cloud acquisition system further comprises a light source, a camera, a lens and a fixing support. The invention relates to the technical field of unmanned autonomous measurement docking, in particular to a method for realizing target point cloud data acquisition through a depth camera, realizing target key three-dimensional information measurement by using a point cloud data processing algorithm, accurately sensing the three-dimensional information of a target in a practical application process, providing key data for a decision-making system, and improving the accuracy of target point cloud data acquisition. And the high-precision three-dimensional size measurement system based on the depth camera meets the actual application requirements.

The invention discloses a method for preparing a perovskite nanocrystal luminescent material, which adopts a step-by-step preparation method through a precursor, has good reaction controllability, does not require the addition of organic ligands, and does not require heating during the reaction process, and has the characteristics of simple preparation, low cost, and suitability for large-scale production. The obtained perovskite nanocrystal luminescent material has high quantum yield and good stability, and can be widely used in photoluminescent devices, lasers, and nonlinear optical devices.

The invention relates to the technical field of C09J157 / 00, and the adhesive at least comprises the following components in parts by weight: 20-40 parts of a block copolymer, 30-50 parts of tackifying resin, 0.1-1 part of an antioxidant and 20-40 parts of rubber oil, and is designed aiming at a high-density polyethylene material, and the adhesive has the characteristics of excellent adhesive property and easy damage. The defects of an existing product in the aspects of weather resistance, adhesion and destructiveness are overcome, and the method is very important for improving the overall safety and convenience of express packaging.

The application belongs to the technical field of thermosetting resin preparation, and particularly relates to a thermosetting resin capable of being heated and degraded for recycling, a preparation method and application thereof. The structural formula of the thermosetting resin is shown in formula I, II, III and IV. The thermosetting resin capable of being heated and degraded for recycling is prepared by using ester-based alkyne and di-oxime compounds. The thermosetting resin is selectively and quantitatively broken under relatively mild heat treatment conditions by using the thermal reversible characteristics of enoxyl bond, and high-purity original monomers are efficiently depolymerized and recycled. The monomer recovery rate can reach more than 88%, high-value closed-loop recycling is realized, and the resource utilization rate is greatly improved. In the preparation process, no inert gas protection is needed, and no harsh catalyst is needed, which greatly reduces the energy consumption and equipment requirements, and the recycling process is more energy-saving, safe and low in cost. Meanwhile, the alkyne-oxime click reaction has the characteristics of high efficiency, high atom utilization rate, no by-product and mild reaction conditions, which is beneficial to material preparation and recycling.

According to the testing device for testing the performance of the dual-motor system, the two motors are installed on the testing stand at the same time, the differential mechanism and the electromagnetic brake are arranged on the testing stand, output performance testing of the single motor and the two motors and fault-tolerant performance testing between the two motors can be achieved, the testing device can be installed on the impact vibration testing stand, and the testing efficiency is improved. The function performance test of the motor under the environment conditions of random vibration test, impact test and the like is realized.

The invention discloses a preparation method of a perovskite nanocrystalline composite luminescent material, which adopts a way of step-by-step compounding of a precursor and low-temperature calcination after grinding, has good reaction controllability, does not need to add an organic ligand, and has the characteristics of simple preparation, low cost and suitability for large-scale production. The obtained perovskite nanocrystalline composite luminescent material has high quantum yield and good stability, and can be applied to photoluminescent devices, laser devices and nonlinear optical devices.