A magnetron frequency modulation device

Abstract

The invention relates to a magnetron mechanical frequency modulation device, comprising a casing, a guide device, multiple sets of connecting rod mechanisms arranged in the circumferential direction, and a pressing device; a movable rod capable of moving up and down is arranged in the casing, and the movable rod The lower end is provided with a limit block for limiting the upward movement of the movable rod; the linkage mechanism is connected with the limit block and the pressing device; the guide device is connected with the bottom of the shell; A channel for placing the press-down device. The magnetron mechanical frequency modulation device of the present invention solves the problem of uneven adjustment of existing frequency regulators, and can realize fast switching when the frequency is higher or lower than the rated frequency.

Description

technical field [0001] The invention belongs to the technical field of magnetron structures, and in particular relates to a frequency adjustment device for a magnetron and related microwave tube anode cylinders. Background technique [0002] Magnetron is a vacuum electron tube that generates microwaves. Because of its high oscillation efficiency and high microwave output power, it is not only widely used in household microwave ovens, but also widely used as a microwave source for microwave processing equipment such as industrial heating and chemical processing. The frequency stability of the magnetron directly affects the performance of the product itself. With the development of microwave technology, it is particularly important to effectively fine-tune the frequency in the manufacturing process. [0003] figure 1 It is a cross-sectional view of an anode assembly adjuster in the prior art. In the figure, the magnetron anode assembly includes an anode cylinder 1', a blade 4...

AI Technical Summary

Problems solved by technology

[0004] In the process of frequency modulation, it is necessary to press the plastic sleeve 5' with the left hand to prevent sliding, but in actual operation, the operator often holds the anode cylinder with his left hand, and the right hand holds the sliding rod 6' and starts to hit the large cross chain up and down, which will cause The five impact points are uneven, because when the plastic sleeve is not aligned with the anode cylinder, the striker can also touch the cross-connection ring, which will cause a series of problems such as long time-consuming frequency modulation and inaccurate frequency modulation.

[0005] figure 2 It is the cross-sectional view of the hook and components used to hook up the large cross-link in the prior art. In the existing frequency modulation technology, if the frequency is too low, the manual pull hook 9' in the figure can only be used to hook up the large cross-link 22 at the upper end. ’, it is necessary to use two tools to reduce and increase the frequency of the magnetron when fine-tuning the frequency. The key is that the manual hook 9’ can only hook up a point of the upper cross link 22’, which causes the inhomogeneity of the resonant cavity , affecting the performance of the magnetron

[0006] In the existing anode cylinder frequency adjustment device, the plastic sleeve cannot ensure that each frequency adjustment of the center sliding rod is in the vertical direction, which often makes the impact point on the pressing device not contact with the cross-connecting ring at the same time. When working, the center sliding rod and the plastic The sleeves are separated, which can easily cause uneven frequency adjustment

In addition, when the frequency is lower than the rated frequency point, the existing adjustment device cannot be used to lift the cross-connection ring. In actual operation, the operator often uses a spare hook to randomly hook up a point in the large cross-connection ring, which greatly damages the cross-connection ring. The chain structure also causes the inhomogeneity of the resonant cavity, which leads to poor performance of the subsequent products and reduces the service life of the product

Moreover, switching between two different adjustment tools will also increase adjustment time and reduce production efficiency

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