X-ray tube assembly ball bearing running-in device

Abstract

The utility model provides a ball bearing running-in device for an X-ray tube assembly, which is used for running-in of a ball bearing X-ray tube assembly and comprises a running-in device support, a ball bearing and a ball bearing, the at least one X-ray tube assembly supporting frame is fixedly connected with the running-in device support, and an X-ray tube assembly is fixed on the X-ray tube assembly supporting frame; the noise sensor is arranged at a specific distance from the support frame and is used for detecting sound generated when the X-ray tube assembly works; the driving device is used for driving the X-ray tube assembly to rotate so that the X-ray tube assembly can be in different postures, and the X-ray tube assembly is at least different in angle under the different postures. The X-ray tube assembly ball bearing running-in device is provided with the noise sensor, and the running-in state can be monitored.

Description

Technical Field

[0001] The present disclosure relates to the field of machinery, and in particular to a ball bearing running-in device for an X-ray tube assembly. Background Art

[0002] An X-ray tube consists of a cathode, anode, and housing. The anode is primarily composed of a target, rotor, and bearings. For X-ray tubes with ball bearings, the noise generated by high-speed rotation is a key performance indicator that requires significant attention and evaluation during the production process. The noise level of the entire housing assembly directly impacts the patient's experience during the examination. However, during the X-ray tube manufacturing process, such as tube annealing, exhaust, and burn-in, the bearings are often subjected to high temperatures. These high temperatures and the resulting manufacturing process can affect the distribution of the coating on the balls, causing coating buildup and, in turn, abnormal noise and vibration during anode operation. Therefore, X-ray tubes with ball bearings require a run-in procedure. This process involves rotating the ball bearings, allowing the balls to reach the desired state through friction. Utility Model Content

[0003] The utility model aims to provide a ball bearing running-in device for an X-ray tube assembly, which can intelligently run-in the ball bearing of the X-ray tube assembly.

[0004] According to an exemplary embodiment of the present disclosure, an X-ray tube assembly ball bearing running-in device is provided for running-in a ball bearing X-ray tube assembly, comprising: a running-in device bracket; at least one X-ray tube assembly support frame fixedly connected to the running-in device bracket, and the X-ray tube assembly is fixed to the X-ray tube assembly support frame; a noise sensor, the noise sensor being arranged at a specific distance from the support frame and being used to detect sound generated when the X-ray tube assembly is in operation; and a driving device for driving the X-ray tube assembly to rotate so as to be in different postures, wherein the X-ray tube assembly has at least different angles in different postures.

[0005] According to an exemplary embodiment of the present disclosure, a silent test box is further included, and the X-ray tube assembly support frame is disposed inside the silent test box.

[0006] According to an exemplary embodiment of the present disclosure, there are a plurality of the silent test boxes, and a corresponding support frame is disposed in each of the silent test boxes.

[0007] According to an exemplary embodiment of the present disclosure, a rotating shaft is further included, which connects the driving device and the silent test box and is used to transmit power of the driving device to the silent test box to drive the X-ray tube assembly to rotate to different postures.

[0008] According to an exemplary embodiment of the present disclosure, it further includes a plurality of rotating shafts, which connect the driving device and the corresponding silent test box and are used to transmit power of the driving device to the silent test box to drive the X-ray tube assembly to rotate to different postures, wherein each silent test box is driven separately.

[0009] According to an exemplary embodiment of the present disclosure, the running device bracket includes an annular slide, the X-ray tube assembly support frame and the annular slide are slidably connected, and the driving device is used to drive the X-ray tube assembly to slide on the annular slide and rotate to different postures.

[0010] According to an exemplary embodiment of the present disclosure, the X-ray tube assembly support frame and the driving device are designed so that when the X-ray tube assembly slides on the annular slide, the X-ray emission window of the X-ray tube assembly is always aligned with the center of the annular slide.

[0011] According to an exemplary embodiment of the present disclosure, a silent test box is further included, and the X-ray tube support frame is arranged inside the silent test box. There are multiple silent test boxes, and a corresponding X-ray tube assembly support frame is arranged in each silent test box.

[0012] According to an exemplary embodiment of the present disclosure, a vibration sensor is further included, and the vibration sensor is placed on the X-ray tube assembly.

[0013] According to an exemplary embodiment of the present disclosure, a control processing device is further included, and the control processing device is electrically connected to the noise sensor and the driving device.

[0014] According to an exemplary embodiment of the present disclosure, at least a noise sensor is included, which can monitor the noise of the ball bearing X-ray tube assembly, thereby making it possible to intelligently monitor and control the running-in process. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The following drawings are only used to illustrate and explain the present invention, and do not limit the scope of the present invention.

[0016] Figure 1 This is a schematic diagram of an exemplary X-ray tube assembly ball bearing running-in device according to the present disclosure;

[0017] Figure 2 Schematic diagram of another exemplary X-ray tube assembly ball bearing running-in device according to the present disclosure.

[0018] Description of labels

[0019] 1 Running-in device bracket

[0020] 2 rotation axes

[0021] 3 X-ray tube assembly

[0022] 4 Silent test box

[0023] 5 Noise Sensor

[0024] 6 Vibration Sensor

[0025] 7 Control processing device

[0026] 10 Circular Slide DETAILED DESCRIPTION

[0027] To make the purpose, technical solutions and advantages of the present disclosure more clear, the present disclosure is further described in detail with reference to the following examples. It should be understood that the specific embodiments described herein are only used to illustrate and explain the present disclosure and are not intended to limit the present disclosure.

[0028] In an exemplary embodiment, an X-ray tube assembly ball bearing running-in device is provided for running-in the ball bearing of an X-ray tube assembly. Figure 1 The running-in device includes a running-in device bracket 1, at least one X-ray tube assembly support bracket, a noise sensor 5 and a driving device. The running-in device bracket 1 and the X-ray tube assembly support bracket are fixedly connected. This connection can be a direct connection or an indirect connection (that is, other components can exist in between), as long as the X-ray tube assembly support bracket can be fixed to a specific position relative to the running-in device bracket 1. The X-ray tube assembly 3 is fixed on the X-ray tube assembly support bracket, and the noise sensor 5 is arranged at a specific distance from the X-ray tube assembly, so that the noise sensor 5 can detect the sound generated by the ball bearing of the X-ray tube assembly 3 when it is working (in the running-in process, it is not necessary to generate X-rays, so the cathode does not need to emit electrons). The position of the noise sensor 5 is not particularly limited. Figure 1 In this embodiment, the noise sensor 5 can be located at any position relative to the X-ray tube assembly, as long as the noise sensor 5 can clearly capture the noise of the X-ray tube assembly's ball bearings. Thus, based on the characteristics of the collected sound, it is possible to determine whether the ball bearings have reached the required running-in level. In practice, the X-ray tube assembly 3 needs to be rotated by a specific angle and changed to another posture for further running-in. Therefore, a drive device is provided to drive the X-ray tube assembly 3 to rotate, thereby changing to another posture for further running-in. In different postures, the X-ray window of the X-ray tube assembly 3 emits X-rays at different angles. Of course, the drive device can also drive the X-ray tube assembly 3 in a continuous motion state, allowing running-in to occur during motion. The different angles of the X-ray tube assembly 3 in different postures are important because only when the X-ray tube assembly 3 is at different angles can the balls in the ball bearings run-in under different forces (especially gravity).

[0029] In one exemplary embodiment, see Figure 1 , also includes a silent test box 4, and the X-ray tube assembly support frame is set inside the silent test box 4. The silent test box 4 can effectively isolate the external interference sound, so that the sound collected by the noise sensor 5 is mainly emitted by the ball bearing, which is very beneficial in a relatively noisy environment. Otherwise, the collected noise signal needs to be filtered, and the filtering effect will greatly affect the judgment of the running-in status. Optionally, there can be multiple silent test boxes 4, and a corresponding support frame is set in each silent test box 4. This setting can run in multiple X-ray tube assemblies at the same time, greatly improving the efficiency. When running in multiple X-ray tube assemblies 3, the silent test box 4 is necessary to avoid the sound interference of multiple X-ray tube assemblies 3 running in at the same time.

[0030] In an exemplary embodiment, see Figure 1, further comprising a rotating shaft 2, which connects the driving device and the silent test box 4 and is used to transmit the power of the driving device to the silent test box 4, so that the silent test box 4 rotates, thereby driving the X-ray tube assembly 3 to rotate the required angle. Generally speaking, during the running-in process, the X-ray tube assembly 3 needs to be run-in at different angles, such as 0 degrees, plus or minus 15 degrees, plus or minus 30 degrees, plus or minus 45 degrees, plus or minus 60 degrees, 90 degrees, and other multiple angles, to ensure that the X-ray tube assembly 3 meets the running-in requirements at multiple angles. Optionally, it can also include multiple rotating shafts 2, which are respectively connected to the driving device and the corresponding silent test box 4, and are used to transmit the power of the driving device to the corresponding silent test box 4, so as to respectively drive the X-ray tube assembly 3 to rotate the required angle. Here, each silent test box 4 is driven separately. The advantage of individual drive is that each X-ray tube assembly 3 has a different run-in process, depending on its specific conditions. For example, if the first X-ray tube assembly 3 runs in at a 0-degree angle for 30 minutes and, through analysis of the signals transmitted by the noise sensor, confirms that it has met the run-in criteria, the first X-ray tube assembly 3 is then switched to a positive 30-degree angle and continues running-in. The second X-ray tube assembly, however, runs in at a 0-degree angle for 60 minutes before meeting the run-in criteria. After 60 minutes, the second X-ray tube assembly is switched to a positive 30-degree angle and continues running-in. Each silent test box 3 is individually driven, ensuring that once each X-ray tube assembly 3 meets the run-in criteria at a certain position, the run-in can proceed to the next position without having to wait for the run-in results of other X-ray tube assemblies 3. Furthermore, once all X-ray tube assemblies 3 within a silent test box 4 have met the run-in criteria, the next X-ray tube assembly 3 can be promptly replaced without having to wait for the other X-ray tube assemblies 3 to complete their run-in. This approach of individually controlling the position of each silent test box 4 and each X-ray tube assembly 3 greatly improves run-in efficiency. At the same time, the running-in effect is also guaranteed, avoiding the situation where a certain X-ray tube component fails to meet the standard due to insufficient running-in time.

[0031] In an exemplary embodiment, it is particularly directed to an X-ray tube used in a CT machine. Figure 2In a CT scanner, the X-ray tube assembly moves along a circular slideway, and X-rays are always directed toward the center of the circular slideway. To simulate the operating environment of the X-ray tube assembly in a CT scanner and ensure that the run-in scenario is more consistent with actual use, a circular slideway 10 is provided in the run-in device bracket 1. The X-ray tube assembly support frame and the circular slideway 10 are slidably connected. This sliding connection can be achieved by the X-ray tube assembly support frame sliding directly on the circular slideway 10 or through another intermediate component (such as a silent test chamber). A drive device is used to drive the X-ray tube assembly 3 to slide and rotate on the circular slideway 10 to a desired angle. This desired angle can be continuously variable, meaning that the drive device drives the X-ray tube assembly 3 to slide on the circular slideway 10 at a specific speed. The X-ray tube assembly support frame and drive device are configured so that when the X-ray tube assembly 3 slides on the circular slideway 10, the X-ray emission window of the X-ray tube assembly 3 is always aligned with the center of the circular slideway, i.e., the center of the circle, to simulate the actual operating environment of a CT scanner. When an annular slide 10 is used, a silent test box 4 may be included, an X-ray tube support frame is arranged inside the silent test box 4, and a driving device drives the silent test box 4 to slide on the annular slide 10. In order to run in multiple X-ray tube assemblies 3 at the same time, there can be multiple silent test boxes 4, and a corresponding X-ray tube assembly support frame is set in each silent test box 4. In this embodiment, the angle of the X-ray tube assembly 3 relative to the tangent direction of the circular slide is usually not adjusted again, and it is only run-in in the rotation state aligned with the center direction of the circular slide. When an X-ray tube assembly 3 meets the running-in standard, the entire running-in device is stopped, and the X-ray tube assembly 3 that meets the running-in standard is replaced by the X-ray tube assembly 3 to be run-in, and the rotation is continued for running-in.

[0032] In one exemplary embodiment, to further obtain relevant information, the running-in device further includes a vibration sensor 6, which is placed on the X-ray tube assembly 3 and collects vibration information of the X-ray tube assembly 3 during the running-in process. The information collected by the vibration sensor 6 is correlated with the information collected by the noise sensor 5. Furthermore, the vibration information also contains information that the noise sensor does not, such as abnormal vibrations indicating that the running-in may not be successful, or predictable vibrations indicating the remaining running-in time.

[0033] In one exemplary embodiment, see Figure 1-2, further comprising a control processing device 7 electrically connected to the X-ray tube assembly 3, noise sensor 5, vibration sensor 6, and drive unit. On one hand, the control processing device 7 controls the entire running-in process, such as starting and stopping the X-ray tube assembly's ball bearings and starting and stopping the drive unit. On the other hand, the control processing device 7 receives and analyzes signals from the noise sensor 6 and vibration sensor 7, providing the operator with relevant information. For example, it may indicate that a particular X-ray tube assembly 3 has completed run-in and meets standards, and control the corresponding X-ray tube assembly's ball bearings to stop rotating and wait for replacement. Alternatively, it may indicate that a particular X-ray tube assembly has a defect that prevents successful run-in, along with the possible cause, and control the corresponding X-ray tube assembly's ball bearings to stop rotating and wait for replacement.

[0034] In an exemplary embodiment, a multi-stage noise running-in analysis system is provided. The bearings of multiple X-ray tube assemblies can be run-in at the same time, and the running-in process can be intelligently controlled through real-time noise monitoring and noise trend prediction analysis. The noise status of X-ray tubes with ball bearings must be evaluated and tested before shipment. Some tubes with high noise levels or abnormal noise during testing require additional running-in of the ball bearings. Running-in is the grinding of ball bearings at different operating angles so that the coating can be more evenly distributed on the surface of the balls and raceways. This makes the noise of the anode more stable during operation. One means is to simultaneously control different tube assemblies to rotate at the same angle and for the same running-in time. This means has a low running-in pass rate and a long process time. The low running-in pass rate is because some X-ray tubes have not reached the running-in standard but the predetermined running-in time has ended, and the long process time is because some X-ray tubes have reached the running-in standard before the running-in time. In this embodiment, see Figure 1 Multiple silent test boxes 4 can be used to perform running-in and noise measurement analysis on multiple X-ray tube assemblies 3 simultaneously, thereby improving production efficiency and noise assessment accuracy.

[0035] Continue to see Figure 1 The X-ray tube assembly run-in and noise monitoring and analysis system includes a run-in device bracket 1, a silent test chamber 4, a noise sensor 5, a vibration sensor 6, and a control and processing device 7. During the run-in process, the noise sensor 5 measures and analyzes the noise generated by the X-ray tube assembly 3 during acceleration, rated speed, and deceleration, and also performs a run-in on the bearings. Noise during the run-in process is simultaneously monitored and trended, and a customized run-in duration is set for each X-ray tube bearing condition. This prevents excessive run-in that can damage the bearings and shorten their lifespan, while also improving production efficiency.

[0036] Continue to see Figure 1The running-in device bracket 1 can be installed with different numbers of workstations as needed. The 360-degree rotatable rotating shaft 2 can enable each workstation to rotate to different angles according to the program setting. The X-ray tube assembly 3 to be tested is fixed in a sealed silent test box 4. A noise sensor 5 is fixed in the silent test box 4. Furthermore, the silent test box 4 also includes a vibration sensor 6 fixed on the X-ray tube assembly 3. The control processing device 7 serving as a control device and an analysis device includes an anode drive control module, a noise signal collection module, a vibration signal collection module, and a noise trend analysis and prediction module.

[0037] The following describes the operating steps of the running-in device:

[0038] 1. Install the X-ray tube assembly 3 on different workstations of the running-in device.

[0039] 2. Connect the anode drive line to the X-ray tube assembly 3 and fix the vibration sensor 6 on the tube shell of the X-ray tube assembly 3.

[0040] 3. Close the silent test box 4 and rotate the silent test box 4 to the origin zero position (i.e. the 0 degree angle position).

[0041] 4. In the control processing device 7, open and run the program.

[0042] 5. After the running-in procedure is completed, open the silent test box 4 and remove the X-ray tube assembly 3.

[0043] In this embodiment, the X-ray tube assembly 3 with a ball bearing core is subjected to noise testing and running-in. Compared with a running-in device that can only simultaneously control different tube assemblies to rotate at the same angle and the same running-in time (its running-in pass rate is low and the process time is long), the running-in device in this embodiment can independently control a single X-ray tube assembly 3, monitor the noise and vibration of the tube assembly in real time during the running-in process, and predict and analyze the noise trend, so as to set different running-in times and running-in angles for different tubes, thereby improving the effectiveness of the running-in process, shortening the running-in time, improving process efficiency, and increasing the life of the ball bearings. The running-in device provides multiple workstations, and the running-in process is easy to operate, highly intelligent, and the measurement results are accurate. See also Figure 2 For CT tubes, the running-in device bracket is designed to include an annular slide 10 with a structural size similar to that of the CT machine, which can more accurately simulate the noise conditions of the X-ray tube assembly 3 when working on the CT rack, thereby reducing the noise ratio of the client and ensuring the delivery quality of the product.

[0044] In the present disclosure, the directional words used, such as "up, down, left, right", are merely relative directions for illustration purposes only and do not represent the direction of gravity in the state of use. In addition, the terms "first", "second", etc. used in the present disclosure are intended to distinguish one element from another and do not have sequentiality or importance. In addition, in the following description, when referring to the drawings, unless otherwise explained, the same figure numbers in different drawings represent the same or similar elements. The above definitions are only used to explain and illustrate the present disclosure and should not be understood as limitations on the present disclosure. In addition, nouns and pronouns related to people in the present disclosure are not limited to specific genders.

[0045] It should also be noted that the various specific technical features described in the above specific embodiments can be combined in any appropriate manner without contradiction. In order to avoid unnecessary repetition, the present disclosure will not further describe various possible combinations.

[0046] To simplify the drawings, only the parts related to the present disclosure are schematically shown in each figure, and they do not represent the actual structure of the product. In addition, to simplify the drawings and facilitate understanding, in some figures, only one of the components with the same structure or function is schematically depicted or labeled.

[0047] The above description is only a preferred embodiment of the present disclosure and is not intended to limit the present disclosure. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present disclosure should be included in the scope of protection of the present disclosure.

Claims

1. An X-ray tube assembly ball bearing running-in device, used for running-in an X-ray tube assembly including a ball bearing, characterized in that: include: Running-in device bracket; At least one X-ray tube assembly support frame, fixedly connected to the running-in device bracket, and the X-ray tube assembly is fixed on the X-ray tube assembly support frame; a noise sensor, the noise sensor being arranged at a specific distance from the X-ray tube assembly support frame and being used to detect the sound generated by the ball bearing of the X-ray tube assembly when it is working; The driving device is used to drive the X-ray tube assembly to rotate, so that the X-ray tube assembly is in different postures. In different postures, the X-ray tube assembly has at least different angles.

2. The X-ray tube assembly ball bearing running-in device according to claim 1, characterized in that: It also includes a silent test box, and the X-ray tube assembly support frame is arranged inside the silent test box.

3. The X-ray tube assembly ball bearing running-in device according to claim 2, characterized in that: There are multiple silent test boxes, and a corresponding X-ray tube assembly support frame is set in each silent test box.

4. The X-ray tube assembly ball bearing running-in device according to claim 2, wherein: It also includes a rotating shaft, which connects the driving device and the silent test box and is used to transmit power from the driving device to the silent test box to drive the X-ray tube assembly to rotate to different postures.

5. The X-ray tube assembly ball bearing running-in device according to claim 3, wherein: It also includes multiple rotating shafts, which connect the driving device and the corresponding silent test box and are used to transmit power from the driving device to the silent test box to drive the X-ray tube assembly to rotate to different postures, wherein each silent test box is driven separately.

6. The X-ray tube assembly ball bearing running-in device according to claim 1, wherein: The running-in device bracket includes an annular slideway, the X-ray tube assembly support frame is fixedly connected to the annular slideway, and the driving device is used to drive the X-ray tube assembly to slide on the annular slideway and rotate to different postures.

7. The X-ray tube assembly ball bearing running-in device according to claim 6, wherein: The X-ray tube assembly support frame and the driving device are designed so that when the X-ray tube assembly slides on the annular slide, the X-ray emission window of the X-ray tube assembly is always aligned with the center of the annular slide.

8. The X-ray tube assembly ball bearing running-in device according to claim 6, wherein: It also includes a silent test box, the X-ray tube assembly support frame is arranged inside the silent test box, there are multiple silent test boxes, and a corresponding X-ray tube assembly support frame is arranged in each silent test box.

9. The X-ray tube assembly ball bearing running-in device according to claim 2 or 8, characterized in that: Also included is a vibration sensor placed on the X-ray tube assembly.

10. The X-ray tube assembly ball bearing running-in device according to claim 1, wherein: It also includes a control processing device, which is electrically connected to the noise sensor and the driving device.

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