Ceramic sealing accelerating tube

Abstract

The utility model discloses a ceramic sealing accelerating tube which comprises an aluminum oxide ceramic accelerating tube, a first connecting tube is arranged on the inner wall of one side of the aluminum oxide ceramic accelerating tube, and one end of the first connecting tube extends to the outside of the aluminum oxide ceramic accelerating tube and is provided with a first flange plate. A second connecting pipe is arranged on the inner wall of the other side of the aluminum oxide ceramic accelerating pipe, one end of the second connecting pipe extends out of the aluminum oxide ceramic accelerating pipe and is provided with a second flange plate, a first through hole is formed in the center of the interior of the first flange plate, and the two ends of the first through hole extend out of the first flange plate; a plurality of first flange holes are formed in the first flange plate on the outer side of the first through hole, and the two ends of each first flange hole extend out of the first flange plate. According to the accelerating tube, the service life of the accelerating tube is prolonged, the purpose that the accelerating tube is easily and stably installed and connected is achieved, the sealing performance of the accelerating tube in the using process is improved, and the firmness of the whole structure of the accelerating tube is guaranteed.

Description

TECHNICAL FIELD

[0001] The utility model relates to vacuum electron technology field, concretely is a kind of ceramic sealing acceleration tube. BACKGROUND

[0002] In the field of vacuum electron technology, as a key component, the performance of the acceleration tube directly affects the working efficiency and stability of the entire electronic device. Traditional acceleration tube structures are mostly made of metal, but in high-frequency and high-power working environments, metal acceleration tubes often face problems such as insufficient voltage resistance and poor heat dissipation performance. Ceramic materials, with their high hardness, high temperature resistance, and good insulation performance, are gradually becoming the ideal material for manufacturing acceleration tubes. Therefore, it is particularly important to develop a ceramic sealing acceleration tube.

[0003] Referring to the announcement number CN214675827U, a multi-pole metal ceramic sealing acceleration tube includes two ultra-high vacuum flanges and an acceleration tube. The two ultra-high vacuum flanges are respectively arranged at the two ends of the acceleration tube and are fixedly connected with the acceleration tube. The acceleration tube is composed of a plurality of alumina ceramic rings and one more metal pressure divider than the alumina ceramic rings, which are alternately combined and fixed. The outer side of the metal pressure divider at both ends is also provided with a Kovar transition section for connecting the ultra-high vacuum flange. The cross section of the alumina ceramic ring is annular, and the metal pressure divider is annular, and the cross section of the alumina ceramic ring and the inner radius of the metal pressure divider are the same. The center of the cross section of each alumina ceramic ring and the center of the metal pressure divider are located on the axis of the acceleration tube. The multi-pole metal ceramic sealing acceleration tube provided by the present acceleration tube has the characteristics of high voltage resistance, good vacuum air tightness, high sealing strength, good focusing performance, large acceleration energy and convenient installation. According to the above, although the acceleration tube can be well applied, it is usually set as a single-layer structure, which is not easy to block and protect the acceleration tube body, often bothering the user. SUMMARY

[0004] The utility model aims at providing a kind of ceramic sealing acceleration tube, to solve the problem that the acceleration tube can be well applied in the above background technology, but usually set as single-layer structure, not easy to block and protect the acceleration tube body.

[0005] In order to achieve the above object, the utility model provides the following technical scheme: a ceramic sealing acceleration tube, including alumina ceramic acceleration tube, the inner wall of one side of alumina ceramic acceleration tube is equipped with first connecting pipe, the one end of first connecting pipe extends to the outside of alumina ceramic acceleration tube and is equipped with first flange plate, the inner wall of the other side of alumina ceramic acceleration tube is equipped with second connecting pipe, the one end of second connecting pipe extends to the outside of alumina ceramic acceleration tube and is equipped with second flange plate, the central position of first flange plate inside is equipped with first through -hole, both ends of first through -hole extend to the outside of first flange plate, the inside of first flange plate of first through -hole outside is equipped with a plurality of first flange hole, both ends of first flange hole extend to the outside of first flange plate, the central position of second flange plate inside is equipped with second through -hole, both ends of second through -hole extend to the outside of second flange plate, the inside of second flange plate of second through -hole outside is equipped with a plurality of second flange hole, both ends of second flange hole extend to the outside of second flange plate, the outside of alumina ceramic acceleration tube is equipped with outer protection pipe.

[0006] Preferably, the inner wall of the outer protection pipe is provided with equally spaced reinforcing rings, the inner wall of the reinforcing ring is fixedly connected with the outer wall of the alumina ceramic acceleration tube, and the outer protection pipe is arranged on the outer side of the alumina ceramic acceleration tube through the arrangement of the reinforcing ring.

[0007] Preferably, the outer wall of the first flange plate on the outer side of the first connecting pipe is provided with a second outer sealing ring, the inner wall of the second outer sealing ring is fixedly connected with the outer wall of the first connecting pipe, and the connection position between the first connecting pipe and the first flange plate is sealed through the arrangement of the second outer sealing ring.

[0008] Preferably, the inner wall of the alumina ceramic acceleration tube on the side away from the first flange plate of the first connecting pipe is provided with a second inner sealing ring, the outer wall of one side of the second inner sealing ring is connected with the inner wall of the first connecting pipe, and the connection position between the first connecting pipe and the alumina ceramic acceleration tube is sealed through the arrangement of the second inner sealing ring.

[0009] Preferably, the inner wall of the alumina ceramic acceleration tube on the side away from the second flange plate of the second connecting pipe is provided with a first inner sealing ring, the outer wall of one side of the first inner sealing ring is connected with the inner wall of the second connecting pipe, and the connection position between the second connecting pipe and the alumina ceramic acceleration tube is sealed through the arrangement of the first inner sealing ring.

[0010] Preferably, the outer wall of the second flange plate on the outer side of the second connecting pipe is provided with a first outer sealing ring, the inner wall of the first outer sealing ring is fixedly connected with the outer wall of the second connecting pipe, and the connection position between the second connecting pipe and the second flange plate is sealed through the arrangement of the first outer sealing ring.

[0011] Compared with the prior art, the ceramic sealing acceleration tube not only prolongs the service life of the acceleration tube, but also achieves the purpose of easily and stably installing and connecting the acceleration tube, and improves the sealing performance of the acceleration tube during use, and guarantees the firmness of the overall structure of the acceleration tube.

[0012] (1) The outer protective pipe is arranged on the outer side of the alumina ceramic acceleration tube through the reinforcing rings, so that the structural strength between the alumina ceramic acceleration tube and the outer protective pipe is improved, and the outer protective pipe can shield and protect the alumina ceramic acceleration tube, so that the damage of the alumina ceramic acceleration tube is reduced, thereby prolonging the service life of the acceleration tube.

[0013] (2) The first flange plate and the second flange plate are arranged at one end of the first connecting pipe and the second connecting pipe respectively, and the first flange hole and the second flange hole are arranged in the first flange plate and the second flange plate respectively, and the positioning holes on the outer pipeline flange are aligned with the first flange hole and the second flange hole, so that the outer pipeline can be bolted on the first flange plate and the second flange plate by means of the bolt, thereby achieving the purpose of easily and stably installing and connecting the acceleration tube.

[0014] (3) The first inner sealing ring and the second inner sealing ring are arranged at the connecting positions between the second connecting pipe and the alumina ceramic acceleration tube and between the first connecting pipe and the alumina ceramic acceleration tube respectively, and the first outer sealing ring and the second outer sealing ring are arranged at the connecting positions between the second connecting pipe and the second flange plate and between the first connecting pipe and the first flange plate respectively, so that the connecting positions between the second connecting pipe and the second flange plate and the alumina ceramic acceleration tube and between the first connecting pipe and the first flange plate and the alumina ceramic acceleration tube are sealed, thereby improving the sealing performance of the acceleration tube during use, and guaranteeing the firmness of the overall structure of the acceleration tube. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 It is a right view structure schematic diagram of the utility model;

[0016] Figure 2 It is a left view structure schematic diagram of the utility model;

[0017] Figure 3 It is a sectional structure schematic diagram of the utility model;

[0018] Figure 4 It is a right view structure schematic diagram of the utility model Figure 3 It is an enlarged structure schematic diagram of A in the utility model.

[0019] In the figure: 1, alumina ceramic accelerating tube; 2, outer protection tube; 3, first connecting pipe; 4, first flange; 401, first through hole; 5, first flange hole; 6, second connecting pipe; 7, second flange; 701, second through hole; 8, second flange hole; 9, first outer sealing ring; 10, second outer sealing ring; 11, reinforcing ring; 12, first inner sealing ring; 13, second inner sealing ring. DETAILED DESCRIPTION

[0020] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the utility model.

[0021] Please refer to Figures 1-4 The utility model provides an embodiment: a ceramic sealing accelerating tube, including alumina ceramic accelerating tube 1, the inner wall of one side of alumina ceramic accelerating tube 1 is equipped with first connecting pipe 3, the outer wall of first flange 4 outside first connecting pipe 3 is equipped with second outer sealing ring 10, and the inner wall of second outer sealing ring 10 is fixedly connected with the outer wall of first connecting pipe 3;

[0022] When using, the second outer sealing ring 10 is arranged to seal the connection position of the first connecting pipe 3 and the first flange 4;

[0023] The inner wall of alumina ceramic accelerating tube 1 on the side, away from the first flange 4, of the first connecting pipe 3 is equipped with a second inner sealing ring 13, and the outer wall of one side of the second inner sealing ring 13 is connected with the inner wall of the first connecting pipe 3;

[0024] When using, the second inner sealing ring 13 is arranged to seal the connection position of the first connecting pipe 3 and the alumina ceramic accelerating tube 1;

[0025] One end of the first connecting pipe 3 extends to the outside of the alumina ceramic accelerating tube 1 and is equipped with the first flange 4, the inner wall of the other side of the alumina ceramic accelerating tube 1 is equipped with the second connecting pipe 6, the inner wall of alumina ceramic accelerating tube 1 on the side, away from the second flange 7, of the second connecting pipe 6 is equipped with the first inner sealing ring 12, and the outer wall of one side of the first inner sealing ring 12 is connected with the inner wall of the second connecting pipe 6;

[0026] When using, the first inner sealing ring 12 is arranged to seal the connection position of the second connecting pipe 6 and the alumina ceramic accelerating tube 1;

[0027] The outer wall of the second flange 7 outside the second connecting pipe 6 is equipped with the first outer sealing ring 9, and the inner wall of the first outer sealing ring 9 is fixedly connected with the outer wall of the second connecting pipe 6;

[0028] In use, the first outer sealing ring 9 is arranged to seal the connection position between the second connecting pipe 6 and the second flange plate 7.

[0029] One end of the second connecting pipe 6 extends to the outside of the alumina ceramic accelerating tube 1 and is provided with the second flange plate 7. The first flange plate 4 is provided with the first through hole 401 at the center position inside the first flange plate 4, and both ends of the first through hole 401 extend to the outside of the first flange plate 4. The first flange plate 4 is provided with a plurality of first flange holes 5 inside the first flange plate 4 outside the first through hole 401, and both ends of the first flange hole 5 extend to the outside of the first flange plate 4. The second flange plate 7 is provided with the second through hole 701 at the center position inside the second flange plate 7, and both ends of the second through hole 701 extend to the outside of the second flange plate 7. The second flange plate 7 is provided with a plurality of second flange holes 8 inside the second flange plate 7 outside the second through hole 701, and both ends of the second flange hole 8 extend to the outside of the second flange plate 7. The alumina ceramic accelerating tube 1 is provided with the outer protective pipe 2 outside the alumina ceramic accelerating tube 1. The inner wall of the outer protective pipe 2 is provided with equally spaced reinforcing rings 11. The inner wall of the reinforcing ring 11 is fixedly connected with the outer wall of the alumina ceramic accelerating tube 1.

[0030] In use, the reinforcing ring 11 is arranged to place the outer protective pipe 2 outside the alumina ceramic accelerating tube 1.

[0031] In use, the first flange plate 4 and the second flange plate 7 are arranged at one end of the first connecting pipe 3 and the second connecting pipe 6 respectively, and the first flange hole 5 and the second flange hole 8 are arranged inside the first flange plate 4 and the second flange plate 7 respectively. The positioning holes on the external pipeline flange are aligned with the first flange hole 5 and the second flange hole 8. The external pipeline is bolted to the first flange plate 4 and the second flange plate 7 by means of the bolt, so as to easily install and connect the accelerating tube. Then, the first inner sealing ring 12 and the second inner sealing ring 13 are arranged at the connection position between the second connecting pipe 6 and the alumina ceramic accelerating tube 1 and between the first connecting pipe 3 and the alumina ceramic accelerating tube 1 respectively, and the first outer sealing ring 9 and the second outer sealing ring 10 are arranged at the connection position between the second connecting pipe 6 and the second flange plate 7 and between the first connecting pipe 3 and the first flange plate 4 respectively. The connection position between the second connecting pipe 6 and the second flange plate 7 and the alumina ceramic accelerating tube 1, the first connecting pipe 3, the first flange plate 4 and the alumina ceramic accelerating tube 1 is sealed, so as to improve the sealing performance of the accelerating tube and ensure the firmness of the overall structure of the accelerating tube. Finally, the outer protective pipe 2 is arranged outside the alumina ceramic accelerating tube 1 by the reinforcing ring 11, so as to improve the structural strength between the alumina ceramic accelerating tube 1 and the outer protective pipe 2 and prevent the alumina ceramic accelerating tube 1 from being damaged by the outer protective pipe 2, thereby completing the use of the accelerating tube.

Claims

1. A ceramic-sealed accelerator tube, characterized by: The application relates to an alumina ceramic accelerating tube (1), which is provided with a first connecting pipe (3) on the inner wall of one side of the alumina ceramic accelerating tube (1), the first connecting pipe (3) extends to the outside of the alumina ceramic accelerating tube (1) at one end and is provided with a first flange plate (4), the alumina ceramic accelerating tube (1) is provided with a second connecting pipe (6) on the inner wall of the other side, the second connecting pipe (6) extends to the outside of the alumina ceramic accelerating tube (1) at one end and is provided with a second flange plate (7), a first through hole (401) is arranged at the central position in the first flange plate (4), the first through hole (401) extends to the outside of the first flange plate (4) at both ends, a plurality of first flange holes (5) are arranged in the first flange plate (4) outside the first through hole (401), the first flange holes (5) extend to the outside of the first flange plate (4) at both ends, a second through hole (701) is arranged at the central position in the second flange plate (7), the second through hole (701) extends to the outside of the second flange plate (7) at both ends, a plurality of second flange holes (8) are arranged in the second flange plate (7) outside the second through hole (701), the second flange holes (8) extend to the outside of the second flange plate (7) at both ends, and an outer protective pipe (2) is arranged outside the alumina ceramic accelerating tube (1).

2. A ceramic sealed accelerator tube according to claim 1, wherein: The inner wall of the outer protective pipe (2) is provided with equally-spaced reinforcing rings (11), and the inner wall of the reinforcing ring (11) is fixedly connected with the outer wall of the alumina ceramic accelerating tube (1).

3. A ceramic sealed accelerator tube according to claim 1, wherein: The outer wall of the first flange plate (4) outside the first connecting pipe (3) is provided with a second outer sealing ring (10), and the inner wall of the second outer sealing ring (10) is fixedly connected with the outer wall of the first connecting pipe (3).

4. A ceramic sealed accelerator tube according to claim 1, wherein: The inner wall of the alumina ceramic accelerating tube (1) on the side, away from the first flange plate (4), of the first connecting pipe (3) is provided with a second inner sealing ring (13), and the outer wall of one side of the second inner sealing ring (13) is connected with the inner wall of the first connecting pipe (3).

5. A ceramic sealed accelerator tube according to claim 1, wherein: The inner wall of the alumina ceramic accelerating tube (1) on the side, away from the second flange plate (7), of the second connecting pipe (6) is provided with a first inner sealing ring (12), and the outer wall of one side of the first inner sealing ring (12) is connected with the inner wall of the second connecting pipe (6).

6. A ceramic sealed accelerator tube according to claim 1, wherein: The outer wall of the second flange plate (7) outside the second connecting pipe (6) is provided with a first outer sealing ring (9), and the inner wall of the first outer sealing ring (9) is fixedly connected with the outer wall of the second connecting pipe (6).

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