6results about How to "Extended test time" patented technology

This invention discloses a planar spiral spring fatigue testing machine, comprising a base, a mounting seat fixedly mounted on the base, a reducer fixedly mounted on the mounting seat, a servo motor fixedly mounted at the rear of the reducer, and mounting brackets symmetrically mounted on the left and right sides of the mounting seat. Each mounting bracket is equipped with a rotatable rotating shaft. The output shafts at both ends of the reducer are nested and fixedly connected to the rotating shafts on the mounting brackets, and the rotating shafts on the mounting brackets are arranged symmetrically front to back. In this invention, the rotating shafts on the mounting brackets are arranged symmetrically front to back and have positioning grooves, so that the spiral springs to be tested are symmetrically installed. After one end is placed, the other end needs to be rotated 180 degrees counterclockwise. The servo motor drives the reducer to rotate, and the reducer and rotating shafts rotate together, causing the spiral springs to rotate. The spiral springs at both ends rotate in the same direction, and the forces on both sides cancel each other out. The torque of the servo motor can be smaller, making it more energy-efficient and effective.

The present invention discloses a method for designing a horizontal test flange of a direct-drive generator, and relates to a method for designing a test flange. The test apparatus includes a horizontal test, a direct-drive wind turbine generator, and a horizontal test flange, wherein the upper end face of the horizontal test flange is connected to the fixed axis of the direct-drive generator by bolts, and the lower end face of the horizontal test flange is connected to the horizontal test bench by bolts. Only the basic test parameters of the generator and the test bench need to be obtained to obtain the optimal height of the flange. Compared with the prior art, the present application can calculate the size of the required test flange according to the relative positions of the test bench, the generator, and the flange, and the sizes of the test bench and the generator, and can quickly design flanges that are suitable for different test benches and generators, thereby accelerating the test time and improving the test efficiency.

The utility model discloses a chain saw brake testing arrangement, include: frame body subassembly, adjusting assembly and testing assembly, adjusting assembly includes: vertical mechanism, transverse mechanism, longitudinal mechanism and adjusting plate, vertical mechanism is located on frame body subassembly, the output of vertical mechanism is connected transverse mechanism, the output of transverse mechanism is connected longitudinal mechanism, the output of longitudinal mechanism is connected adjusting plate, testing assembly is located on adjusting plate, testing assembly includes: pendulum mechanism, positioning mechanism and reset mechanism, pendulum mechanism is hinged with adjusting plate, positioning mechanism is used for fixing pendulum mechanism at the height of setting, when testing, positioning mechanism lowers pendulum mechanism, reset mechanism is used for the pendulum mechanism after testing resets. The utility model can reduce the time of testing assembly position adjustment, improve the testing time of chain saw, improve the production efficiency of chain saw.

The invention discloses a coating method of a high-strength fastener, which comprises a pre-process and a post-process, the pre-process comprises cleaning, shot blasting, alkaline cyanide-free galvanizing, washing, passivating, washing, sealing and spin-drying, and the post-process comprises cleaning, shot blasting, alkaline cyanide-free galvanizing, washing, passivating, washing, sealing and spin-drying; the post-process comprises the steps of coating, pre-drying, sintering, secondary coating, pre-drying, sintering and blanking. The method has the advantage that the corrosion resistance is improved.

The invention discloses a production communication test method for a LoRaWAN electric meter. The method comprises the following steps: S1, placing a LoRaWAN gateway on one side of an electric meter rack and keeping a power-on state; s2, connecting the LoRaWAN gateway with a computer through a network cable, placing a plurality of ammeters needing production communication testing on an ammeter rack, and connecting the ammeters with the computer through a serial server; and S3, the computer carries out production communication test on the plurality of electricity meters on the electricity meter rack at the same time. According to the production communication testing method for the LoRaWAN electric meter, batch testing of lorawan electric meters can be rapidly completed, the production testing time is shortened, the testing accuracy is improved, and the signal value of each lorawan radio frequency circuit can be rapidly measured and uploaded to a computer for judgment.

This invention discloses a non-mechanical liquid crystal optical phased array (U-PHI) high-speed measurement system and method. The system includes: a laser, a polarizer, a liquid crystal optical phased array under test, a quarter-wave plate, a first depolarizing beam splitter, a second depolarizing beam splitter, a 135° polarization direction analyzer, a 45° polarization direction analyzer, a polarizing beam splitter, four photodetectors, a DSP signal processing module, and a main control terminal. The method of this invention, based on a small number of waveplates, optical crystals, and unit photodetectors, realizes a simple, low-cost, and highly controllable non-mechanical liquid crystal optical phased array (U-PHI) high-speed measurement system. It also achieves one-click U-PHI testing of liquid crystal devices, completing one test in 1ms, improving testing time and accuracy, greatly reducing human error caused by individual differences, and facilitating system integration, miniaturization, lightweighting, and low power consumption. This accelerates batch testing and quality assurance of mass-produced products in the liquid crystal device industry and is suitable for mass production equipment.