A giant magnetostrictive transducer and its temperature control method
A giant magnetostriction, transducer technology, applied in temperature control, instrument, control/regulation system, etc., can solve the problems of inability to apply rotary ultrasonic processing system, limited effect of air cooling on temperature rise suppression, etc., to improve energy Effectiveness of utilization, suppression of eddy current effects, and reduction of heat loss
Active Publication Date: 2021-11-23
TSINGHUA UNIV
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Problems solved by technology
[0007] In terms of temperature control, the existing technology can only realize air cooling during the processing process, and the effect of air cooling on temperature rise is relatively limited, and it is impossible to achieve temperature control under high power, while the water cooling proposed at present is all pipeline water cooling , the water pipe needs to be placed inside the transducer, which cannot be applied to the rotary ultrasonic processing system
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[0053] Embodiments of the present invention will be described below with reference to the accompanying drawings. Those skilled in the art would recognize that the described embodiments can be modified in various ways or combinations thereof without departing from the spirit and scope of the invention. Accordingly, the drawings and description are illustrative in nature and not intended to limit the scope of the claims. Also, in this specification, the drawings are not necessarily drawn to scale, and like reference numerals denote like parts.
[0054] like Figure 1-Figure 4 Commonly shown, the present embodiment provides a giant magnetostrictive transducer, the transducer 1 includes a shell 10, a sheet-shaped giant magnetostrictive body, a sheet-shaped permanent magnet, a bobbin 11, a coil 7, and a magnetically conductive sleeve Tube 8, magnetic guide sheet 9, output disc 14, gland 15, pre-tightening block 12, pre-tightening bolt 16.
[0055]Wherein the housing 10 is a cyli...
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The invention discloses a giant magnetostrictive transducer and a temperature control method thereof. The transducer comprises: a casing, which is a cylinder body; a gland, which is connected to one end of the casing; an output disc, which is connected to the casing and a plurality of sheet-shaped giant magnetostrictive bodies, a plurality of sheet-like permanent magnets and coils coaxially arranged in the housing, the sheet-like permanent magnets and the sheet-like giant magnetostrictive bodies are stacked set, and there are sheet-shaped permanent magnets located at both ends; the coil surrounds the periphery of the sheet-shaped giant magnetostrictive body and the sheet-shaped permanent magnet; wherein, the gland and the output disc are respectively connected to the sheet-shaped permanent magnet contact. The invention can greatly suppress the eddy current effect, reduce heat loss, and improve energy utilization rate; the invention can still have a good cooling effect in the case of high-power processing.
Description
technical field [0001] The invention belongs to the technical field of ultrasonic precision special processing, and in particular relates to a giant magnetostrictive transducer and a temperature control method thereof. Background technique [0002] Rotary ultrasonic machining technology is to apply ultrasonic vibration to the tool head in a certain direction and periodically change in a certain direction during processing, so as to improve the processing effect. Compared with the traditional machining method without ultrasonic vibration, rotary ultrasonic machining has significant advantages in many aspects, such as improving machining efficiency and precision, reducing cutting force, and extending tool life. [0003] Magnetostriction is a phenomenon in which ferromagnets change in size under the influence of a magnetic field. Due to the phenomenon of magnetostriction, the giant magnetostrictive body can be repeatedly elongated and shortened under the action of an applied a...
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IPC IPC(8): B06B1/08G05D23/20B05B7/02
CPCB05B7/02B06B1/085G05D23/20
Inventor 冯平法张建富兰天王健健郁鼎文吴志军
Owner TSINGHUA UNIV