4results about How to "Reduce flutter" patented technology

This invention discloses a cutting device and process for crankshaft machining, relating to the technical field of crankshaft machining equipment. It includes a support frame, a feeding trough, a guiding mechanism, a feeding mechanism, a tilting mechanism, a lifting mechanism, a CNC machining mechanism, a top-pressure rotation mechanism, a vibration stabilization mechanism, and a control system. The feeding trough, guiding mechanism, and feeding mechanism achieve automatic workpiece sorting and conveying; the tilting mechanism rotates the workpiece to a horizontal machining position; the lifting mechanism precisely lifts the workpiece to the machining position; the top-pressure rotation mechanism provides rotational power and works with the vibration stabilization mechanism to achieve automatic centering; the vibration stabilization mechanism detects vibration in real time through an accelerometer, and when vibration exceeds limits, drives an auxiliary pin assembly to press the crankshaft balance block, dynamically applying a damping force to counteract chatter. This invention solves the problems of large vibration, low centering accuracy, and insufficient automation in existing devices, significantly improving crankshaft machining accuracy and extending tool life, and is suitable for mass production of high-precision crankshafts.

This utility model relates to the field of drying equipment technology, and in particular to a drying device, comprising a vertical drying area surrounded by drying components. The drying area can simultaneously dry at least one pair of sides of the components to be dried. The drying area has at least one inlet and one outlet for the components to be dried. It also includes a traction mechanism that pulls the components to be dried vertically through the drying area from the inlet and out from the outlet. The drying channel is arranged vertically, with guide rollers and traction rollers positioned at the uppermost and lowermost ends, respectively. The components to be dried pass vertically through the drying area. The drying area dries the components from both sides, completely avoiding physical contact with the guide rollers and traction rollers during the drying process to prevent process defects such as printing transfer, blurring, misalignment, and deformation. This reduces the drift amplitude of the components to be dried, achieving uniform drying on both sides and controlling the migration of the components to be dried.

This utility model discloses a raft-type liftable aerator, relating to the field of aerator technology. The utility model includes plastic floats, elbows, tees, connectors, aeration risers, an aerator body, and steel wire ropes. Two floats are provided, and several elbows are provided, with the two floats connected by the elbows. By using two floats connected by several elbows and then joined by the connector to form a raft, the stability of the aerator body is increased. Four steel wire ropes are used to fix the entire raft, adding two more steel wire ropes than the single float of the original suspended chain aeration system, further reducing the swaying amplitude of the floats on the water surface. By replacing the hose (snake-skin hose) connection between the floats and the aerator body with a connector that connects to the aerator body via the aeration riser (which is a rigid pipe), tangling of the hose (snake-skin hose) is avoided, preventing tangling from affecting the equipment's performance and maintenance.

This invention relates to the field of blade processing equipment technology, and more particularly to a multi-axis rotary polishing machine tool for processing steam turbine blades, comprising: a frame, a grinding wheel base, a mounting shaft, and a clamping seat; the mounting shaft is rotatably connected to the frame; the clamping seat is rotatably connected to the mounting shaft; the grinding wheel base is connected to the frame; the support mechanism can clamp the blade and perform polishing on the blade's fluttering parts, thereby increasing the stiffness of the blade at the clamped part, and thus increasing the blade's natural frequency and eliminating flutter; this invention improves the stiffness of the polished part of the blade edge by clamping the clamping shaft on both sides of the thinner part of the blade edge during polishing, thereby increasing the natural frequency of that part of the blade, so that the natural frequency of the blade at the polished part is offset from the high-frequency vibration frequency generated by the rapid rotation of the grinding wheel base during polishing, thereby reducing the occurrence of flutter during polishing.