Medical x-ray tube with a stable structure

Abstract

The application discloses a medical X-ray tube with stable structure and relates to the technical field of medical detection equipment. The X-ray tube comprises a transparent protective cover arranged at the top end and the bottom end of the X-ray tube, a ceramic base connected to the bottom end of the transparent protective cover, a cathode arranged in the transparent protective cover, a stator arranged on the two sides of the ceramic base, a rotor connected between the stators, a heat dissipation system sleeved outside the rotor and an anode arranged in the heat dissipation system. The X-ray tube has the advantages that the two ends of the hydraulic plate are tightly connected with the inner wall of the sealing shell, the cavity in the hydraulic plate is divided into two closed cavities by the hydraulic plate, the internal cavity generates pressure when the shaft rotates, the cooling liquid tends to flow in one direction, the cooling liquid in the heat dissipation ring can be circulated in the cooling box, the stator and the rotor work synchronously, the stator and the rotor do not work under the condition of high load, and the service life of the X-ray tube is prolonged.

Description

Technical Field

[0001] This invention relates to the field of medical detection equipment technology, specifically to a structurally stable medical X-ray tube. Background Technology

[0002] X-ray tubes are mainly used in medical equipment such as X-ray machines and CT scanners. Under the application of external high pressure, they generate X-rays for doctors to diagnose or treat patients.

[0003] The mechanism by which an X-ray tube generates X-rays is roughly as follows: When the filament (cathode) of the X-ray tube is heated, free electrons escape from the filament surface, forming an electron cloud. When a high voltage (typically 40-150 kV) is applied between the cathode and anode of the X-ray tube, electrons at the filament fly at high speed towards the target disk (anode), colliding with the anode target disk to generate X-rays, which are then output as effective X-rays through the X-ray window. In this energy conversion process, only 1% of the electron kinetic energy is converted into X-rays; the remaining 99% is converted into heat energy, which is transferred to the outside of the X-ray tube through thermal radiation or conduction and carried away by the X-ray tube sleeve and heat sink. Specifically, this includes:

[0004] (1) Of the heat from the target plate (accounting for 90% of the total heat), part of it is radiated onto the metal shell in the middle of the X-ray tube, another part is radiated to the outside of the X-ray tube through the glass shells at both ends, and the last part is carried away by the rotor copper sleeve. Of this, the heat radiated to the metal shell accounts for the largest share, about 60%, the heat radiated through the glass is about 20%, and the heat carried away by the rotor copper sleeve is about 20%.

[0005] (2) The heat from the cathode (accounting for 10% of the total heat) is carried away through the cathode glass and metal shell. Therefore, heat management of the X-ray tube is one of the key factors affecting its reliability and lifespan.

[0006] Currently, traditional X-ray tubes mainly use a glass-insulated structure, with the following general structure:

[0007] Cathode glass-intermediate metal-anode glass structure;

[0008] Integral glass-cathode metal-anode metal structure.

[0009] Traditional X-ray tubes mainly use glass insulation structures. Due to the limitations of glass strength and stress, glass structures are not suitable for X-ray tubes with large heat capacity.

[0010] Its main disadvantages are: 1. Limited glass insulation properties: especially the anode glass shell, where 20% of the target disk heat is radiated to the outside of the X-ray tube through the glass. Due to the low softening temperature of the glass (only 550°C) and the fatal defect of the TK100 value, discharge is easily generated when the heat is too concentrated. (Note: TK100 refers to the temperature at which the insulation strength of the glass rapidly decreases. Generally, the TK100 value of the glass in an X-ray tube is around 300 degrees Celsius).

[0011] Poor heat dissipation performance: Since the heat generated when the device is working exceeds the capacity of its own volume, ordinary materials cannot adapt to this load. Therefore, in the existing technical shortcomings, it is necessary to develop internal materials and also to dissipate the overall heat. Only by setting up both aspects can the device adapt to existing materials on the market before new materials are available, and this will help reduce costs.

[0012] 3. Complex process with multiple welds: New materials or components are needed to fill the gaps at the joints, and the structure cannot be too complex. Summary of the Invention

[0013] The purpose of this invention is to provide a medical X-ray tube with a stable structure.

[0014] To address the problems mentioned in the background art, the present invention provides the following technical solution: a structurally stable medical X-ray tube, comprising an X-ray tube, wherein a transparent protective cover and a ceramic base connected to the bottom end of the transparent protective cover are respectively provided at the top and bottom ends of the X-ray tube; a cathode is installed inside the transparent protective cover; the ceramic base includes stators mounted on both sides, a rotor connected between the stators, a heat dissipation system sleeved outside the rotor, and an anode installed inside the heat dissipation system; gear a and gear b are mounted on the outer ring of the stators; and the bottom end of the rotor includes mating gear a and gear b. The mating gear b has a shaft connected to its top surface, and a sleeve is connected to its top surface. A sealing shaft is tightly fitted to the top surface of the sleeve. The heat dissipation system includes a cooling box installed inside a ceramic base, an input pipe and an output pipe connected to both sides of the top surface of the cooling box, and a heat dissipation ring fitted onto the top of the input pipe and the output pipe. A pump is installed between the top surface of the sealing shaft and the heat dissipation system. The pump includes a sealing shell on its periphery, an inlet and an outlet on both sides of the sealing shell, a drive ring fitted onto the top of the sealing shaft, and a hydraulic plate adjusted outside the drive ring.

[0015] As a further embodiment of the present invention: the top surface of the transparent protective cover is provided with a through groove, and a fixing plate is installed between the inner wall and the cathode. The transparent protective cover is rotatably connected to the top of the ceramic base, and a sealing gasket is laid at the connection between the two. A U-shaped groove is provided inside the sealing gasket.

[0016] As a further aspect of the present invention: the ceramic base is hollow inside, and the cross-section of the inner ring of the top surface is equal in shape and size to the cross-section of the inner ring of the bottom surface of the transparent protective cover. Circular holes are provided on both sides of the bottom end of the ceramic base, and stators are non-fixedly engaged inside the circular holes. Inspection ports are provided on the bottom surface of the ceramic base.

[0017] As a further aspect of the present invention: the stator is located on both sides of the outer surface of the ceramic base, and a stator rod is installed between the inner surfaces of the stator. The outer ring of the stator rod is fixedly connected to gear a and gear b, and the two are asymmetrically installed on the outer ring of the stator rod. The diameter of gear a is larger than the diameter of gear b. The outer rings of gear a and gear b are provided with teeth, and the tooth pitch of the two is equal.

[0018] As a further aspect of the present invention: the shape and size of the mating gear a are equal to those of gear a, and the shape and size of the mating gear a are equal to those of gear b. The mating gear a is located above the mating gear b. The sleeve is hollow inside, and the inner ring cross-section is larger than the outer ring cross-section of the shaft. The length of the sleeve is smaller than the length of the shaft.

[0019] As a further embodiment of the present invention: the bottom outer ring of the sealing shaft is fixedly connected to the inner wall of the sleeve and is in the shape of a convex shape; the inside of the sealing shaft is hollowed out; the inner ring is tightly connected to the shaft center; the top of the sealing shaft is inserted into the inside of the pump; and the side of the outer ring is tightly engaged with the driving ring.

[0020] As a further aspect of the present invention: a control switch is installed on the bottom surface of the cooling box, and the control switch is connected to the pump through a connecting wire. The input pipe is sealed to the water inlet opened on the side of the pump, and the end of the output pipe away from the cooling box is connected to the bottom end of the heat dissipation ring. The end of the heat dissipation ring away from the output pipe is connected to the water outlet of the pump. The interiors of the input pipe, the output pipe, and the heat dissipation ring are all hollowed out and are made of ceramic.

[0021] As a further aspect of the present invention: the interior of the sealing shell is hollowed out, a circular hole is opened on the bottom surface of the sealing shell and is tightly connected to the outer ring of the shaft, a cover plate is tightly installed on the top surface, and a circular hole of the same shape and size is opened on the cover plate and the sealing shell at the same axis. The driving ring is rotatably installed inside the sealing shell, and the sealing shell is centrifugally sleeved on the outer ring of the shaft. The hydraulic plate has an annular cross section, is sleeved on the periphery of the shaft, and is movably locked inside the sealing shell. The two ends of the hydraulic plate are tightly locked to the inner wall of the sealing shell.

[0022] As a further aspect of the present invention: the bottom surface of the anode is fixedly connected to the axis, and the top surface is correspondingly connected to the bottom surface of the cathode.

[0023] The above technical solution is adopted:

[0024] This invention features a pump connected to the middle of a shaft, with the pump's interior powered by a sealed shaft. The side of the sealed shaft is fixedly connected to the driving ring, creating friction between its smooth outer wall and the inner ring of the hydraulic plate, causing them to rotate synchronously. The two ends of the hydraulic plate are tightly connected to the inner wall of the sealing shell, dividing its internal cavity into two sealed cavities. This allows pressure to be generated in the internal cavities when the shaft rotates, causing the coolant to flow in one direction. This allows the coolant inside the heat sink to circulate within the cooling tank, working synchronously with the stator and rotor. This prevents excessive load operation when not in use, reduces energy waste, and extends the overall service life.

[0025] This invention generates medical X-rays by simultaneously installing a cathode and an anode inside a transparent protective cover and a ceramic base. The bottom surface of the anode is connected to the top of the shaft, and they rotate during operation. When rotating, they form a rotational heat dissipation with the surrounding heat dissipation ring. The direction of rotation is opposite to the water flow inside the heat dissipation ring, so that the heat is dissipated towards the cooler water. This can make the overall heat dissipation effect sufficient, thereby addressing the shortcomings that need to be improved during operation and enhancing the high-temperature heat dissipation speed generated during efficient internal operation.

[0026] This invention addresses the issue that X-ray tubes, which radiate X-rays during operation, cannot be opaque. Therefore, the upper part of the X-ray tube is transparent, while the lower part is made of ceramic. The ceramic is fired to withstand temperatures up to 1400℃ and is a non-thermal conductor with a high melting point and excellent heat dissipation. A sealing gasket between the transparent protective cover and the ceramic base ensures a seamless connection. During operation, the high internal temperature of the X-ray tube directly enters the connection between the transparent protective cover and the ceramic base. The sealing gasket is a commercially available gasket with a U-shaped groove inside to drain the high temperature downwards. The U-shaped groove aligns with a heat dissipation ring, the top of which is at the same height as the top of the ceramic base. The internal coolant, during circulation, absorbs the high temperature drained from the U-shaped groove. Furthermore, the ceramic heat dissipation ring provides excellent heat dissipation and a long service life. Attached Figure Description

[0027] Figure 1 A three-dimensional schematic diagram of a structurally stable medical X-ray tube.

[0028] Figure 2 A front view of a structurally stable medical X-ray tube.

[0029] Figure 3 A structurally stable medical X-ray tube structure Figure 2 A cross-sectional schematic diagram of AA in the middle;

[0030] Figure 4 A three-dimensional cross-sectional diagram of a structurally stable medical X-ray tube.

[0031] Figure 5 A three-dimensional cross-sectional view of an X-ray tube structure with stable structure, viewed from below.

[0032] Figure 6 A structurally stable medical X-ray tube structure Figure 5 A magnified view of part A in the diagram;

[0033] Figure 7 A three-dimensional schematic diagram of the stator and rotor of a structurally stable medical X-ray tube;

[0034] Figure 8 A three-dimensional, bottom-view diagram of a stable medical X-ray tube structure, including docking gear a, docking gear b, and a disassembled pump.

[0035] Figure 9 This is an isometric three-dimensional schematic diagram of a stable medical X-ray tube structure, including docking gear a, docking gear b, and a disassembled pump.

[0036] Figure 10 A three-dimensional schematic diagram of the connection between a stable medical X-ray tube structure pump and a sealing shaft;

[0037] Figure 11 A schematic diagram showing the top of a structurally stable medical X-ray tube pump.

[0038] Figure 12 A three-dimensional schematic diagram of a sealing ring for a structurally stable medical X-ray tube;

[0039] Figure 13 This is a schematic diagram illustrating a U-shaped groove structure for a stable medical X-ray tube.

[0040] In the diagram: 1. X-ray tube; 2. Transparent protective cover; 21. Cathode; 22. Fixing plate; 23. Sealing gasket; 231. U-shaped groove; 3. Ceramic base; 4. Stator; 41. Gear a; 42. Gear b; 43. Stator rod; 5. Rotor; 51. Connecting gear a; 52. Connecting gear b; 53. Shaft; 54. Sleeve; 55. Sealing shaft; 6. Heat dissipation system; 61. Cooling box; 611. Control switch; 62. Input pipe; 63. Output pipe; 64. Heat dissipation ring; 7. Anode; 8. Pump; 81. Sealing shell; 811. Cover plate; 82. Water inlet; 83. Water outlet; 84. Drive ring; 85. Hydraulic plate. Detailed Implementation

[0041] The specific embodiments of the present invention will be further described below with reference to the accompanying drawings. It should be noted that these descriptions are for the purpose of aiding understanding the present invention, but do not constitute a limitation thereof. Furthermore, the technical features involved in the various embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other. Example 1

[0042] Please see Figures 1-13 This invention provides a technical solution: a structurally stable medical X-ray tube, comprising an X-ray tube 1, with a transparent protective cover 2 at the top and bottom of the X-ray tube 1, and a ceramic base 3 connected to the bottom of the transparent protective cover 2. A cathode 21 is installed inside the transparent protective cover 2. The ceramic base 3 includes stators 4 mounted on both sides, a rotor 5 connected between the stators 4, a heat dissipation system 6 sleeved outside the rotor 5, and an anode 7 installed inside the heat dissipation system 6. Gears a41 and b42 are mounted on the outer ring of the stators 4. The bottom of the rotor 5 includes mating gears a51 and b52, with the top surface of mating gear a51 connected to... The shaft 53 is connected to the top surface of the gear b52 via a sleeve 54. The top surface of the sleeve 54 is tightly fitted with a sealing shaft 55. The heat dissipation system 6 includes a cooling box 61 installed inside the ceramic base 3, an input pipe 62 and an output pipe 63 connected to both sides of the top surface of the cooling box 61, and a heat dissipation ring 64 fitted onto the top of the input pipe 62 and the output pipe 63. A pump 8 is installed between the top surface of the sealing shaft 55 and the heat dissipation system 6. The pump 8 includes a sealing shell 81 on the periphery, an inlet 82 and an outlet 83 on both sides of the sealing shell 81, a drive ring 84 fitted onto the top of the sealing shaft 55, and a hydraulic plate 85 adjusted outside the drive ring 84.

[0043] Please see Figure 11 The interior of the sealing shell 81 is hollow, and a circular hole is opened on the bottom surface of the sealing shell 81, which is tightly connected to the outer ring of the shaft 53. A cover plate 811 is tightly installed on the top surface. The cover plate 811 and the sealing shell 81 have a circular hole of the same shape and size at the same axis. The drive ring 84 is rotated and installed inside the sealing shell 81. The sealing shell 81 is centrifugally sleeved on the outer ring of the shaft 53. The hydraulic plate 85 has an annular cross section, is sleeved on the outer periphery of the shaft 53, and is movably locked inside the sealing shell 81. The two ends of the hydraulic plate 85 are tightly locked to the inner wall of the sealing shell 81.

[0044] In this embodiment, the pump 8 is a non-fully automatic mechanized device, so the workload is not large. Moreover, this technology is not disclosed, but it is fully disclosed in the specification of this invention. When the sealing shell 81 and the cover plate 811 cooperate to generate pressure in the internal cavity, they can make the internal air flow in a uniform direction. This allows the coolant inside the cooling box 61 to be drawn upwards to dissipate heat from the ceramic base 3 and the transparent protective cover 2. The hydraulic plate 85 rotates inside and is movable, not fixed. The pump 8 has a simple structure and a simple principle, and the maintenance cost is low, allowing the cost savings to be invested in other components of the X-ray tube 1.

[0045] During use, a pump 8 is sleeved at the middle end of the shaft 53, and the pump 8 is powered by a sealing shaft 55. The side of the sealing shaft 55 is fixedly connected to the driving ring 84, so that its smooth outer wall and the inner ring of the hydraulic plate 85 generate friction, so that they rotate synchronously. The two ends of the hydraulic plate 85 are tightly connected to the inner wall of the sealing shell 81. The hydraulic plate 85 divides the internal cavity into two sealed cavities. When the shaft 53 rotates, it generates pressure in the internal cavity, and the coolant tends to move in one direction. This allows the coolant inside the heat sink 64 to circulate inside the cooling box 61, working synchronously with the stator 4 and the rotor 5. This prevents excessive load work when not in operation, reduces energy waste, and extends the overall service life. Example 2

[0046] Please see Figures 1-13 This invention provides a technical solution: a structurally stable medical X-ray tube, comprising an X-ray tube 1, with a transparent protective cover 2 at the top and bottom of the X-ray tube 1, and a ceramic base 3 connected to the bottom of the transparent protective cover 2. A cathode 21 is installed inside the transparent protective cover 2. The ceramic base 3 includes stators 4 mounted on both sides, a rotor 5 connected between the stators 4, a heat dissipation system 6 sleeved outside the rotor 5, and an anode 7 installed inside the heat dissipation system 6. Gears a41 and b42 are mounted on the outer ring of the stators 4. The bottom of the rotor 5 includes mating gears a51 and b52, with the top surface of mating gear a51 connected to... The shaft 53 is connected to the top surface of the gear b52 via a sleeve 54. The top surface of the sleeve 54 is tightly fitted with a sealing shaft 55. The heat dissipation system 6 includes a cooling box 61 installed inside the ceramic base 3, an input pipe 62 and an output pipe 63 connected to both sides of the top surface of the cooling box 61, and a heat dissipation ring 64 fitted onto the top of the input pipe 62 and the output pipe 63. A pump 8 is installed between the top surface of the sealing shaft 55 and the heat dissipation system 6. The pump 8 includes a sealing shell 81 on the periphery, an inlet 82 and an outlet 83 on both sides of the sealing shell 81, a drive ring 84 fitted onto the top of the sealing shaft 55, and a hydraulic plate 85 adjusted outside the drive ring 84.

[0047] Please see Figure 5 A control switch 611 is installed on the bottom surface of the cooling box 61, and the control switch 611 is connected to the pump 8 through a connecting wire. The input pipe 62 is sealed to the water inlet 82 opened on the side of the pump 8, and the end of the output pipe 63 away from the cooling box 61 is connected to the bottom of the heat sink 64. The end of the heat sink 64 away from the output pipe 63 is connected to the water outlet 83 of the pump 8. The interiors of the input pipe 62, the output pipe 63, and the heat sink 64 are all hollow and made of ceramic.

[0048] In this embodiment, the control switch 611 is in contact with the cavity inside the cooling box 61, which allows for the detection of the internal temperature during later use. This also greatly facilitates the monitoring of the internal heat dissipation process, reducing the risk of the heat dissipation system 6 stopping work and the internal temperature becoming too high, which could lead to an explosion. The entire structure is made of ceramic, which enhances its heat resistance.

[0049] During use, the cathode 21 and anode 7 installed inside the transparent protective cover 2 and the ceramic base 3 work simultaneously to generate medical X-rays. The bottom surface of the anode 7 is connected to the top of the shaft 53, and rotates during operation. When rotating, it forms a rotational heat dissipation with the heat dissipation ring 64 that is sleeved on the outside. The direction of rotation is opposite to the water flow inside the heat dissipation ring 64, and it dissipates heat towards the cooler water. This can make the overall heat dissipation effect sufficient, thereby achieving the shortcomings that need to be improved during operation and enhancing the high-temperature heat dissipation speed generated during efficient internal operation. Example 3

[0050] Please see Figures 1-13This invention provides a technical solution: a structurally stable medical X-ray tube, comprising an X-ray tube 1, with a transparent protective cover 2 at the top and bottom of the X-ray tube 1, and a ceramic base 3 connected to the bottom of the transparent protective cover 2. A cathode 21 is installed inside the transparent protective cover 2. The ceramic base 3 includes stators 4 mounted on both sides, a rotor 5 connected between the stators 4, a heat dissipation system 6 sleeved outside the rotor 5, and an anode 7 installed inside the heat dissipation system 6. Gears a41 and b42 are mounted on the outer ring of the stators 4. The bottom of the rotor 5 includes mating gears a51 and b52, with the top surface of mating gear a51 connected to... The shaft 53 is connected to the top surface of the gear b52 via a sleeve 54. The top surface of the sleeve 54 is tightly fitted with a sealing shaft 55. The heat dissipation system 6 includes a cooling box 61 installed inside the ceramic base 3, an input pipe 62 and an output pipe 63 connected to both sides of the top surface of the cooling box 61, and a heat dissipation ring 64 fitted onto the top of the input pipe 62 and the output pipe 63. A pump 8 is installed between the top surface of the sealing shaft 55 and the heat dissipation system 6. The pump 8 includes a sealing shell 81 on the periphery, an inlet 82 and an outlet 83 on both sides of the sealing shell 81, a drive ring 84 fitted onto the top of the sealing shaft 55, and a hydraulic plate 85 adjusted outside the drive ring 84.

[0051] Please see Figure 13 The top surface of the transparent protective cover 2 has a through groove, and a fixing plate 22 is installed between the inner wall and the cathode 21. The transparent protective cover 2 is rotatably connected to the top of the ceramic base 3, and a sealing gasket 23 is laid at the connection between the two. A U-shaped groove 231 is opened inside the sealing gasket 23.

[0052] In this embodiment, the sealing gasket 23 mainly serves as a connector. However, the sealing gasket 23 on the market will melt under high temperature during use, and in severe cases, it will form a liquid. Furthermore, its components do not need much research and development. In conjunction with the internally installed heat dissipation ring 64, a U-shaped groove 231 is provided, which provides good protection.

[0053] When in use, the X-ray tube 1 needs to radiate X-rays, so it cannot be opaque. Therefore, the upper part of the X-ray tube 1 is transparent, while the lower part is made of ceramic. The ceramic is fired and can withstand high temperatures up to 1400℃. Ceramic is also a non-thermal conductor with a high melting point and good heat dissipation. The sealing gasket 23 between the transparent protective cover 2 and the ceramic base 3 connects them. When the X-ray tube 1 is working, the high temperature inside will directly enter the connection between the transparent protective cover 2 and the ceramic base 3. The sealing gasket 23 is a commercially available sealing gasket. The U-shaped groove 231 inside the sealing gasket 23 can drain the high temperature that enters downwards. The opening of the U-shaped groove 231 is connected to the heat dissipation ring 64. The top of the heat dissipation ring 64 is at the same height as the top of the ceramic base 3. When the internal coolant circulates, it can absorb the high temperature discharged from the U-shaped groove 231. The heat dissipation ring 64 is made of ceramic, which has good heat dissipation and a long service life.

[0054] The embodiments of the present invention have been described in detail above with reference to the accompanying drawings, but the present invention is not limited to the described embodiments. For those skilled in the art, various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the present invention, and these variations still fall within the protection scope of the present invention.

Claims

1. A structurally stable medical X-ray tube, comprising an X-ray tube (1), characterized in that: The X-ray tube (1) is provided with a transparent protective cover (2) at its top and bottom, and a ceramic base (3) connected to the bottom of the transparent protective cover (2). A cathode (21) is installed inside the transparent protective cover (2). The ceramic base (3) includes a stator (4) installed on both sides, a rotor (5) connected between the stators (4), a heat dissipation system (6) sleeved on the outside of the rotor (5), and an anode (7) installed inside the heat dissipation system (6). Gear a (41) and gear b (42) are installed on the outer ring of the stator (4). The bottom of the rotor (5) includes a mating gear a (51) and a mating gear b (52). The top surface of the mating gear a (51) is connected to a shaft (53), and the top surface of the mating gear b (52) is connected to a shaft (53). A connecting sleeve (54) is tightly fitted with a sealing shaft (55) on its top surface. The heat dissipation system (6) includes a cooling box (61) installed inside the ceramic base (3), an input pipe (62) and an output pipe (63) connected to both sides of the top surface of the cooling box (61), and a heat dissipation ring (64) fitted on the top of the input pipe (62) and the output pipe (63). A pump (8) is installed between the top surface of the sealing shaft (55) and the heat dissipation system (6). The pump (8) includes a sealing shell (81) set on the periphery, an inlet (82) and an outlet (83) opened on both sides of the sealing shell (81), a drive ring (84) fitted on the top of the sealing shaft (55), and a hydraulic plate (85) adjusted outside the drive ring (84).

2. The structurally stable medical X-ray tube according to claim 1, characterized in that: The top surface of the transparent protective cover (2) is provided with a through groove, and a fixing plate (22) is installed between the inner wall and the cathode (21). The transparent protective cover (2) is rotatably connected to the top of the ceramic base (3), and a sealing gasket (23) is laid at the connection between the two. A U-shaped groove (231) is provided inside the sealing gasket (23).

3. The structurally stable medical X-ray tube according to claim 1, characterized in that: The ceramic base (3) has a hollow interior, and the cross-section of the inner ring of the top surface is equal in shape and size to the cross-section of the inner ring of the bottom surface of the transparent protective cover (2). The ceramic base (3) has round holes on both sides of the bottom end, and a stator (4) is non-fixedly connected inside the round holes. The ceramic base (3) has an inspection port on the bottom surface.

4. A structurally stable medical X-ray tube according to claim 1, characterized in that: The stator (4) is located on both sides of the ceramic base (3). A stator rod (43) is installed between the inner sides of the stator (4). The outer ring of the stator rod (43) is fixedly connected to gear a (41) and gear b (42), and the two are asymmetrically installed on the outer ring of the stator rod (43). The diameter of gear a (41) is larger than the diameter of gear b (42). The outer rings of gear a (41) and gear b (42) are provided with teeth, and the tooth pitch of the two is equal.

5. A structurally stable medical X-ray tube according to claim 1, characterized in that: The shape and size of the mating gear a (51) are equal to those of gear a (41), and the shape and size of the mating gear b (52) are equal to those of gear b (42). The mating gear a (51) is located above the mating gear b (52). The sleeve (54) is hollow inside, and the inner ring cross-section is larger than the outer ring cross-section of the shaft (53). The length of the sleeve (54) is less than the length of the shaft (53).

6. A structurally stable medical X-ray tube according to claim 1, characterized in that: The bottom outer ring of the sealing shaft (55) is fixedly connected to the inner wall of the sleeve (54) and is convex in shape. The interior of the sealing shaft (55) is hollowed out, and the inner ring is tightly connected to the shaft (53). The top of the sealing shaft (55) is inserted into the inside of the pump (8), and the outer ring side is tightly engaged with the drive ring (84).

7. A structurally stable medical X-ray tube according to claim 1, characterized in that: A control switch (611) is installed on the bottom surface of the cooling box (61), and the control switch (611) is connected to the pump (8) through a connecting line. The input pipe (62) is sealed to the water inlet (82) opened on the side of the pump (8), and the end of the output pipe (63) away from the cooling box (61) is connected to the bottom end of the heat sink (64). The end of the heat sink (64) away from the output pipe (63) is connected to the water outlet (83) of the pump (8). The interiors of the input pipe (62), the output pipe (63) and the heat sink (64) are all hollow and made of ceramic.

8. A structurally stable medical X-ray tube according to claim 1, characterized in that: The interior of the sealing shell (81) is hollowed out. A circular hole is opened on the bottom surface of the sealing shell (81) and is tightly connected to the outer ring of the shaft (53). A cover plate (811) is tightly installed on the top surface. A circular hole of the same shape and size is opened on the same axis as the cover plate (811) and the sealing shell (81). The driving ring (84) is rotatably installed inside the sealing shell (81) and the sealing shell (81) is centrifugally sleeved on the outer ring of the shaft (53). The hydraulic plate (85) has an annular cross section and is sleeved on the outer periphery of the shaft (53) and is movably clamped inside the sealing shell (81). The two ends of the hydraulic plate (85) are tightly clamped to the inner wall of the sealing shell (81).

9. A structurally stable medical X-ray tube according to claim 1, characterized in that: The bottom surface of the anode (7) is fixedly connected to the shaft (53), and its top surface is correspondingly connected to the bottom surface of the cathode (21).

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