4results about How to "Prevent co-rotation" patented technology

This utility model relates to a welding device for boiler water-cooled wall components, including a welding torch, a rotating device, and a magnetic chuck device. The rotating device includes a first gear, a second gear, a third gear, a fourth gear, a motor, a motor cage, a first shaft, and a second shaft. The magnetic chuck device includes a car body, a roof bushing, a first wheel, a second wheel, an electromagnet, a first worm gear, a first worm, and a first micro motor. The welding torch is installed in the rotating device. Two identical magnetic chuck devices are symmetrically arranged on both sides of the rotating device. The magnetic chuck device used in this utility model can be manipulated by personnel to attach to the vertical water-cooled wall and move on the boiler water-cooled wall. Since the water-cooled wall is made of metal, mostly steel, magnetic attraction can be generated by energizing the electromagnet. The rotating device allows the welding torch to rotate after the magnetic chuck device is fixed to the water-cooled wall, thereby adjusting to a suitable welding angle.

This invention discloses a silicon ring polishing device, belonging to the technical field of polishing equipment, including a base column, an inner ring polishing mechanism, and an outer ring polishing mechanism. Through the arrangement of the inner and outer polishing mechanisms, the inner and outer walls of the silicon ring can be polished simultaneously. The rotation direction of the outer disk controlled by the first motor is opposite to the rotation direction of the polishing ring, avoiding the silicon ring from rotating together during polishing in the same direction, thereby improving the polishing effect. Simultaneously, during polishing, the outer polishing mechanism can hold the silicon ring in place, preventing it from falling off.

An automatic locking device and unit, comprising driving motor, locking block and fixed block arranged in sequence from bottom to top, the output end of the driving motor is provided with the locking block, the locking block can be connected to the component to be locked, the fixed block is provided with the fixed groove for placing and limiting the rotation of the product, and the product can be movable along the axial direction of the fixed groove, and the driving motor drives the locking block to tighten the component to be locked. It can be seen that the difference between the utility model and the prior art lies in that an inverted layout scheme is adopted, that is, the driving motor is arranged below, and the locking block and the fixed block are arranged upward in sequence, so that the whole locking execution mechanism is no longer limited by the superimposed height of the product and the component to be locked. The inverted structure effectively solves the problem that the existing upright locking device has high requirements on the installation space height, thereby improving the adaptability of the device in the space limited occasions.

This utility model discloses a cultivation device for testing the salt tolerance of rice, including a box body. Multiple cultivation troughs are respectively opened on the front and rear sides of the upper end of the box body, and cultivation cups are placed in each trough. A left-right moving component is provided in the middle of the upper end of the box body, which can move left and right on the box body. An irrigation component is provided on the moving component, and a cleaning component for cleaning the cultivation cups is provided on the right side of the box body. This utility model automatically irrigates the cultivation cups on the box body by moving the irrigation component, reducing manual irrigation. The cultivation cups are distributed on both sides of the box body, facilitating observation of rice growth and salt tolerance testing. After cultivation, the cultivation cups are removed, the soil is poured out, and the cleaning component cleans them, allowing the cultivation cups to be reused and reducing the impact of the previous test on the next test.