A low-frequency pulsed abrasive jet precision feeding device and method
An abrasive jet, low-frequency pulse technology, applied in the field of jet, can solve the problems of inability to precisely control the abrasive output, unstable material supply, complex structure, etc., to shorten the transportation time, improve the utilization rate, and improve the work efficiency.
Active Publication Date: 2021-12-17
WUHAN UNIV
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Problems solved by technology
For the pulsed abrasive jet, the removal of workpiece material is mainly in the high-speed section of the jet. This continuous feeding method will cause a lot of waste of abrasives; and the frequency of the pulsed jet is different, and the amount of abrasive required is also different. The feeding method cannot accurately control the abrasive output at different frequencies
There are also some patents that disclose the method of using magnetic field to accurately control the feeding amount, but the structure is complicated and the requirement must be magnetic abrasive
Above-mentioned shortcoming has caused the waste of resources, the instability of feeding and the increase of cost, therefore, research and develop a kind of accurate feeding device that is used for pulse abrasive jet system is the important problem urgently to be solved by those skilled in the art
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[0061] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.
[0062] It should be noted that the experimental methods described in the following embodiments, unless otherwise specified, are conventional methods, and the reagents and materials, if not otherwise specified, can be obtained from commercial sources; in the description of the present invention, The terms "landscape", "portrait", "top", "bottom", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", The orientation or positional relations...
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The invention discloses a low-frequency pulsed abrasive jet precision feeding device and method. The abrasive tank is nested and installed in the discharge tank. The abrasive tank and the discharge tank can rotate with each other. Distributed outlets, the wall of the outlet tank is provided with a material chamber connected to the outlet, the material chamber is connected to the feeding channel in the base, and then connected to the mixing chamber of the nozzle through a hose; the power assembly is installed in the base to drive the abrasive The tank rotates; the pulse jet generated by the pulse water jet generator and the abrasive are mixed in the mixing chamber of the nozzle and ejected from the nozzle. The invention realizes the same discharge frequency as the pulse frequency by adjusting the rotation speed of the motor; and adjusts the position of the stopper according to the required abrasive supply amount at a certain pulse frequency to realize accurate material feeding. The invention has a simple structure and is applicable to any kind of abrasive materials, and can also improve the utilization rate of the abrasive materials, save resources and reduce costs through the cooperation of the abrasive tank and the pulse frequency.
Description
technical field [0001] The invention belongs to the field of jet technology, and in particular relates to a low-frequency pulsed abrasive jet precision feeding device and method. Background technique [0002] Pulsed abrasive jet is a new type of jet developed on the basis of pulsed jet and abrasive jet. The energy exchange and acceleration effect of abrasive in the state of pulsed jet is better than that of ordinary abrasive jet. It integrates the advantages of both and has the advantages of pulsed jet. The pulsating nature and destructiveness of abrasive jets have broad application prospects in industrialized society. [0003] The abrasive supply device is an important part of the abrasive water jet processing system. At present, the material supply of water jet equipment is mainly realized by negative pressure generated by high-speed water flow to suck the abrasive into the mixing chamber or by pneumatic conveying. For the pulsed abrasive jet, the removal of workpiece ma...
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IPC IPC(8): B24C7/00B24C9/00
CPCB24C7/0076B24C7/0053B24C9/00
Inventor 李登熊杰巫世晶王晓笋康勇姚致远罗文悦
Owner WUHAN UNIV