3results about How to "With fine-tuning function" patented technology

The utility model discloses an automobile flywheel cold extrusion hydraulic press with a fine adjustment function, which comprises a base, first electric control telescopic rods are vertically and fixedly connected to two sides of the outer edge of the upper surface of the base, and a first device block is fixedly connected between the top ends of piston rods of the first electric control telescopic rods. According to the automobile flywheel cold extrusion hydraulic machine with the fine adjustment function, by arranging a lower die pressing ring and a height adjusting structure, when the device is actually used, after a blank is placed in a die groove, an upper extrusion structure is controlled to operate, and then an upper die pressing ring can be driven to descend; then the blank is subjected to extrusion forming under the combined action of the upper die pressing ring, the die groove, the die center column and the lower die pressing ring, the horizontal position of the top end of the lower die pressing ring of the device can be adjusted through a height adjusting structure, and the overall thickness of a final product can be changed; and a final product can be finely adjusted under the condition that the mold does not need to be replaced, so that the practicability of the device is improved.

The utility model relates to wind power generation technical field especially is a kind of wind power generator main shaft and gear box shaft expansion sleeve centering device, including main body, the top of main body is provided with position adjusting assembly, and the top of main body is fixedly connected with gear box assembly;The utility model discloses the central measurement of main shaft and gear box shaft expansion sleeve by utilizing the mode of laser measurement can provide very high measurement accuracy, help to ensure the accurate centering of main shaft and gear box shaft, laser measurement can quickly obtain measurement data, reduce manual operation and the time of repeated adjustment, the expansion of telescopic link makes the sliding block slide inside the sliding slot, and then the main shaft body inside bearing is adjusted to left and right position adjustment, and the expansion of top extension rod can be adjusted to the main shaft body up and down position, telescopic link and top extension rod all have fine adjustment function, can realize extremely accurate position adjustment.

The invention relates to the technical field of hydraulic power control and engineering testing, in particular to a hydraulic loading system based on heterogeneous valve group cooperative driving and a control method, and the hydraulic loading system comprises a double-acting pressure cylinder, an execution oil cylinder, an oil source, an oil return tank, a mixed valve control driving module, an unloading valve and a controller; a large-area driving cavity and a small-area high-pressure output cavity are formed in the double-acting pressure cylinder, and a piston of the double-acting pressure cylinder is movably arranged in the large-area driving cavity and the small-area high-pressure output cavity; an oil inlet of the mixing valve control driving module is connected with an oil source, an oil return opening of the mixing valve control driving module is connected with an oil return box, and meanwhile a working oil opening of the mixing valve control driving module is connected with a large-area driving cavity of the double-acting pressure cylinder. The unloading valve is arranged between the oil inlet of the execution oil cylinder and the oil return tank; and the controller is electrically connected with the unloading valve of the mixing valve control driving module and is used for controlling the working state. The device has the advantage of being suitable for heavy-load and high-dynamic test scenes such as large-scale wind power transmission chain loading and the like.