X-ray tube anode bearing fatigue testing device

Abstract

The application relates to the technical field of X-ray bulb technology, in particular to an X-ray bulb anode bearing fatigue test device. The device comprises a swing plate, one end of the swing plate is rotationally connected to a fixed support, the other end of the swing plate is connected to the driven end of a crank connecting rod mechanism, the driving end of the crank connecting rod mechanism is connected to a driving assembly; a clamping assembly is fixedly arranged on the swing plate. The device is compact and reasonable in structure and convenient to operate, the device can simulate the situation that the anode bearing of the bulb is subjected to alternating loads, thereby fatigue life of the anode bearing can be tested, and the test threshold and test cost are reduced.

Description

Technical Field

[0001] This invention relates to the field of X-ray tube technology, and in particular to a fatigue testing device for an anode bearing of an X-ray tube. Background Technology

[0002] Currently, the anode bearings of X-ray tubes are subjected to alternating loads during actual operation. To verify whether their structure meets the designed lifespan requirements, fatigue tests simulating alternating loads are necessary. The fatigue test of the anode bearings of X-ray tubes simulates the loads experienced by the X-ray tube under actual operating conditions using testing equipment. This simulates the alternating load resulting from the superposition of gravity and high-speed centrifugal force, thus verifying the fatigue life of the anode bearings under specific operating conditions.

[0003] In the existing technology, only general testing devices such as vibration test benches can be used in conjunction with tooling or actual CT gantry for testing. The testing equipment is complex and the testing cost is high. Summary of the Invention

[0004] This application addresses the shortcomings of existing production technologies by providing an X-ray tube anode bearing fatigue testing device that can simulate alternating loads on the tube anode bearing, thereby conducting fatigue life tests on the anode bearing and reducing the testing threshold and cost.

[0005] The technical solution adopted in this invention is as follows: An X-ray tube anode bearing fatigue testing device includes a swing plate, one end of which is rotatably connected to a fixed support, and the other end of which is connected to the driven end of a crank-connecting rod mechanism, the driving end of which is connected to a drive assembly; a clamping assembly is fixed on the swing plate.

[0006] Furthermore, the drive component employs a motor reducer.

[0007] Furthermore, the crank-connecting rod mechanism includes a crankshaft, with a crankshaft bearing housing rotatably connected to each end of the crankshaft. The crankshaft bearing housing is connected to a fixed support via a connector. One end of the crankshaft is connected to the drive end of the motor reducer. One end of the bearing connecting rod is rotatably connected to the middle of the crankshaft. The other end of the bearing connecting rod is rotatably connected to a connecting rod mounting seat. The connecting rod mounting seat is connected to the end of the swing plate via a connector.

[0008] Furthermore, a rotating shaft is fixedly connected to one end of the swing plate, and a rotating shaft bearing seat is rotatably connected to each end of the rotating shaft. The rotating shaft bearing seat is connected to the fixed support through a connector.

[0009] Furthermore, the clamping assembly includes a lower clamping seat, an upper clamping seat connected to the lower clamping seat via multiple pillars, a fixed clamping block connected to the upper clamping seat via a connector, and a movable clamping block connected to the fixed clamping block via a connector.

[0010] Furthermore, a semi-circular fixed clamping groove is provided on the end face of the fixed clamping block facing the movable clamping block, and a semi-circular movable clamping groove is provided on the end face of the movable clamping block facing the fixed clamping block. The fixed clamping groove and the movable clamping groove are connected to form a circular rotating shaft clamping groove.

[0011] Furthermore, a positioning base is fixed on the lower clamp, and a positioning cone is fixed on the positioning base.

[0012] The beneficial effects of this invention are as follows: This invention features a compact and rational structure, and is easy to operate. It can simulate the alternating load conditions of X-ray tube anode bearings, thereby conducting fatigue life tests on the anode bearings and lowering the testing threshold and cost. Through the cooperation of fixed and movable clamping blocks, this invention can be flexibly used for fatigue testing of anode bearings in various types of X-ray tubes, expanding its application range. This invention also has significant scalability, enabling fatigue testing of anode bearings in general X-ray tubes, including common liquid metal bearing anode assemblies and ball bearing anode assemblies, and can also be extended to test general structural components. Attached Figure Description

[0013] Figure 1 This is a perspective view of the present invention.

[0014] Figure 2 This is a perspective view of the clamping assembly of the present invention.

[0015] Figure 3 This is a diagram of the internal structure of the clamping assembly of the present invention.

[0016] Figure 4 This is a schematic diagram of the clamping mechanism of the present invention.

[0017] The components are: 1. Swing plate; 2. Fixed support; 3. Motor reducer; 4. Crankshaft; 5. Crankshaft bearing housing; 6. Bearing connecting rod; 7. Connecting rod mounting seat; 8. Rotary shaft; 9. Rotary shaft bearing housing; 10. Lower clamping seat; 11. Support column; 12. Upper clamping seat; 13. Fixed clamping block; 14. Movable clamping block; 15. Positioning base; 16. Positioning cone; A. X-ray tube. Detailed Implementation

[0018] The specific embodiments of the present invention will now be described with reference to the accompanying drawings.

[0019] like Figure 1 As shown, an X-ray tube anode bearing fatigue testing device includes a swing plate 1. One end of the swing plate 1 is rotatably connected to a fixed support 2, and the other end of the swing plate 1 is connected to the driven end of a crank-connecting rod mechanism. The driving end of the crank-connecting rod mechanism is connected to a drive assembly. During operation, the drive assembly can drive the crank-connecting rod structure to swing back and forth, thereby driving the swing plate 1 to swing back and forth.

[0020] like Figure 1 As shown, the drive assembly uses a motor reducer 3. The crank-connecting rod mechanism includes a crankshaft 4, with a crankshaft bearing housing 5 rotatably connected to each end of the crankshaft 4. The crankshaft bearing housing 5 is bolted to a fixed support 2. One end of the crankshaft 4 is connected to the drive end of the motor reducer 3, which drives the crankshaft 4 to rotate. One end of the bearing connecting rod 6 is rotatably connected to the middle of the crankshaft 4, and the other end of the bearing connecting rod 6 is rotatably connected to a connecting rod mounting seat 7, which is bolted to the end of the swing plate 1. During operation, the motor reducer 3 drives the crankshaft 4 to rotate, which in turn drives the bearing connecting rod 6 to move up and down, which in turn drives one end of the swing plate 1 to move up and down.

[0021] like Figure 1 As shown, one end of the swing plate 1 is fixedly connected to the rotating shaft 8, and both ends of the rotating shaft 8 are rotatably connected to a rotating shaft bearing seat 9. The rotating shaft bearing seat 9 is connected to the fixed support 2 by bolts.

[0022] like Figure 1 As shown, a clamping assembly is fixed on the swing plate 1. The clamping assembly can clamp the X-ray tube A to be tested. The reciprocating swing of the swing plate 1 drives the X-ray tube A to reciprocate, and finally realizes the fatigue test of the liquid metal bearing of the X-ray tube A under alternating load.

[0023] like Figure 2 and Figure 3 As shown, the clamping assembly includes a lower clamping seat 10, a fixed positioning base 15 on the lower clamping seat 10, and a fixed positioning cone 16 on the positioning base 15. The positioning cone 16 can be positioned and inserted into the shaft hole of the X-ray tube A. The lower clamping seat 10 is connected to an upper clamping seat 12 via multiple support columns 11. The upper clamping seat 12 is bolted to a fixed clamping block 13, and the fixed clamping block 13 is bolted to a movable clamping block 14. The fixed clamping block 13 and the movable clamping block 14 can cooperate to clamp the anode shaft of the X-ray tube A.

[0024] The fixed clamping block 13 has a semi-circular fixed clamping groove on the end face facing the movable clamping block 14, and the movable clamping block 14 has a semi-circular movable clamping groove on the end face facing the fixed clamping block 13. The fixed clamping groove and the movable clamping groove are connected to form a circular rotating shaft clamping groove. The rotating shaft clamping groove matches the outer surface of the anode rotating shaft of the X-ray tube A and can clamp the anode rotating shaft of the X-ray tube A.

[0025] In the present invention, when performing fatigue testing on the anode bearing of X-ray tube A, if... Figure 4As shown, the positioning cone 16 of the clamping assembly first extends into the shaft hole of the X-ray tube A to position the X-ray tube A. Next, the fixed clamping block 13 and the movable clamping block 14 of the clamping assembly cooperate to clamp the anode shaft of the X-ray tube A. Then, the drive assembly drives the crank-connecting rod assembly to move. Through the crank-connecting rod mechanism, the anode bearing of the X-ray tube A can be simulated to be subjected to alternating loads, allowing for fatigue life testing, thus reducing the testing threshold and cost. This invention, through the cooperation of the fixed clamping block 13 and the movable clamping block 14, can be flexibly used for fatigue testing of anode bearings of various types of X-ray tubes A, expanding its application range. The testing device of this invention has a simple and reliable structure, is easy to assemble, and is easy to use, possessing high practicality. This invention has high safety and flexibility during testing and can also be extended to multiple functions. This invention has great scalability, capable of performing fatigue testing on the anode bearings of general X-ray tubes A, including common liquid metal bearing anode assemblies and ball bearing anode assemblies, and can also be extended to test general structural components.

Claims

1. An X-ray tube anode bearing fatigue testing device, comprising a swing plate (1), characterized in that: One end of the swing plate (1) is rotatably connected to the fixed support (2), and the other end of the swing plate (1) is connected to the driven end of the crank-connecting rod mechanism. The driving end of the crank-connecting rod mechanism is connected to the driving assembly; a fixed clamping assembly is mounted on the swing plate (1).

2. The X-ray tube anode bearing fatigue testing device as described in claim 1, characterized in that: The drive component is a motor reducer (3).

3. The X-ray tube anode bearing fatigue testing device as described in claim 2, characterized in that: The crank-connecting rod mechanism includes a crankshaft (4), with a crankshaft bearing seat (5) rotatably connected to each end of the crankshaft (4). The crankshaft bearing seat (5) is connected to a fixed support (2) via a connector. One end of the crankshaft (4) is connected to the drive end of the motor reducer (3). The middle part of the crankshaft (4) is rotatably connected to one end of the bearing connecting rod (6). The other end of the bearing connecting rod (6) is rotatably connected to the connecting rod mounting seat (7). The connecting rod mounting seat (7) is connected to the end of the swing plate (1) via a connector.

4. The X-ray tube anode bearing fatigue testing device as described in claim 3, characterized in that: One end of the swing plate (1) is fixedly connected to the rotating shaft (8), and the two ends of the rotating shaft (8) are respectively rotatably connected to a rotating shaft bearing seat (9). The rotating shaft bearing seat (9) is connected to the fixed support (2) through a connector.

5. The X-ray tube anode bearing fatigue testing device as described in claim 4, characterized in that: The clamping assembly includes a lower clamping seat (10), an upper clamping seat (12) is connected to the lower clamping seat (10) by a plurality of pillars (11), a fixed clamping block (13) is connected to the upper clamping seat (12) by a connector, and a movable clamping block (14) is connected to the fixed clamping block (13) by a connector.

6. The X-ray tube anode bearing fatigue testing device as described in claim 5, characterized in that: The fixed clamping block (13) has a semi-circular fixed clamping groove on the side facing the movable clamping block (14), and the movable clamping block (14) has a semi-circular movable clamping groove on the side facing the fixed clamping block (13). The fixed clamping groove and the movable clamping groove are connected to form a circular rotating shaft clamping groove.

7. The X-ray tube anode bearing fatigue testing device as described in claim 6, characterized in that: The lower clamp (10) is fixed with a positioning base (15), and the positioning base (15) is fixed with a positioning cone (16).

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