Bearing cleaning device and ct apparatus using the same

Abstract

The present disclosure provides a bearing cleaning device and a CT device using the same. The bearing cleaning device comprises a bracket, a connecting piece mounted on the bracket, wherein the connecting piece is configured to connect the bracket with a reserved window of the CT device, the reserved window providing a path or space for installing a first component in the CT device, and a cleaning piece mounted on the bracket, wherein the cleaning piece is configured to contact a surface to be cleaned of a bearing in the CT device during cleaning, and clean undesired substances on the surface to be cleaned during relative movement with the bearing.

Description

Technical Field

[0001] This disclosure relates to the field of safety inspection, specifically to a bearing cleaning device and a CT device using the device. Background Technology

[0002] The CT-type baggage security inspection system is a relatively new product in the international and domestic markets in recent years. It can be used for the security inspection of items and baggage in places such as airports, train stations, docks, important conferences or gatherings.

[0003] Bearings and slip rings are core components of the CT-type baggage inspection system and require regular maintenance. For example, as bearings are used, impurities such as dust, debris, or grease will accumulate on them. Cleaning these impurities by disassembling the bearings and slip rings is not only time-consuming and labor-intensive, but may also affect the normal operation of the equipment components. Summary of the Invention

[0004] In view of at least one of the above-mentioned technical problems, this disclosure provides a bearing cleaning device and a CT device using the device.

[0005] One aspect of this disclosure provides a bearing cleaning device, comprising: a bracket; a connector mounted on the bracket, wherein the connector is configured to connect the bracket to a reserved window of a CT device, the reserved window providing a path or space for mounting a first component in the CT device; and a cleaning member mounted on the bracket, wherein the cleaning member is configured to contact a surface to be cleaned of a bearing in the CT device during cleaning, and to clean undesirable material from the surface to be cleaned during relative movement with the bearing.

[0006] In some exemplary embodiments, the reserved window is located near a local area of ​​the surface to be cleaned, the bracket extends through the reserved window into the interior of the CT device, and the cleaning component is located at the end of the bracket and in contact with the local area.

[0007] In some exemplary embodiments, the bracket is fixed to the reserved window, the cleaning component is fixed to the end of the bracket, and the cleaning component cleans the unwanted substances on the surface to be cleaned by: during the rotation of the bearing, the local area on the surface to be cleaned that is close to the reserved window is continuously switched so that the unwanted substances on the contacted local area are cleaned by the cleaning component.

[0008] In some exemplary embodiments, the projection of the cleaning component onto the plane containing the reserved window is located within the reserved window area.

[0009] In some exemplary embodiments, the cleaning component includes: N scraping elements, each of the scraping elements contacting the surface to be cleaned to scrape away unwanted substances on the surface to be cleaned; wherein the N scraping elements are spaced apart along the rotation direction of the bearing, and N is an integer greater than or equal to 2.

[0010] In some exemplary embodiments, the unwanted substance includes grease, and the cleaning member cleaning the unwanted substance on the surface to be cleaned includes: each of the scraping members is configured to scrape the grease on the surface to be cleaned.

[0011] In some exemplary embodiments, each of the scrapers is plate-shaped, and the opposite sides of any two adjacent scrapers are parallel to each other. During the rotation of the bearing, for the same position on the surface to be cleaned, the grease is scraped sequentially by N scrapers. The N scrapers are arranged at intervals along the rotation direction of the bearing, including: the N scrapers are evenly spaced; or, for the first two scrapers that scrape the grease, the distance between them is greater than the distance between any of the other scrapers.

[0012] In some exemplary embodiments, the surface to be cleaned is an arc-shaped surface, and when not in contact with the surface to be cleaned, the end faces of the N scrapers that are in contact with the surface to be cleaned are located on the same plane; or, the end faces of the N scrapers that are in contact with the surface to be cleaned are arc-shaped surfaces, and the curvature of each arc-shaped surface matches the curvature of the contact position.

[0013] In some exemplary embodiments, the cleaning component further includes: a base plate, perpendicular to the direction of gravity, connected to the bottom of the N scraping components; and a side plate, parallel to the direction of gravity, connected to the base plate and opposite to the surface to be cleaned.

[0014] In some exemplary embodiments, the bracket includes: a first connecting rod, one end of which is connected to a mounting portion on one side of the reserved window, and the other end of which is connected to a mounting portion on the other side of the reserved window; a frame connected to the first connecting rod, the frame including a second connecting rod and a third connecting rod perpendicular to the first connecting rod; and a mounting rod disposed opposite to the first connecting rod, one end of which is connected to the second connecting rod, and the other end of which is connected to the third connecting rod; wherein, N scraping elements are connected to the mounting rod and extend in a direction perpendicular to the mounting rod to contact the surface to be cleaned during cleaning.

[0015] In some exemplary embodiments, the N scrapers are made of silicone.

[0016] Another aspect of this disclosure provides a CT device including a bearing cleaning device.

[0017] The above-described one or more embodiments have the following beneficial effects: They provide a bearing cleaning device for CT equipment. By incorporating cleaning components, unwanted substances are cleaned and collected while the bearing is rotating. This allows for timely removal of impurities adhering to the bearing without disassembling the bearing and slip ring, improving maintenance efficiency and service life. For example, when the unwanted substance is grease, it prevents grease from splashing onto the coding strip of the slip ring. Furthermore, the use of multiple scraping components made of materials such as silicone ensures scraping hardness without scratching the bearing surface, exhibiting high wear resistance.

[0018] Additional aspects and advantages of this disclosure will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of this disclosure. Attached Figure Description

[0019] To better understand this disclosure, it will be described in detail with reference to the following figures:

[0020] Figure 1 A simplified three-dimensional diagram of a CT scanner is shown schematically.

[0021] Figure 2 yes Figure 1 Top view of the CT equipment shown;

[0022] Figure 3 This diagram schematically illustrates the installation effect of a bearing cleaning device according to an embodiment of the present disclosure;

[0023] Figure 4 A schematic diagram of a bearing cleaning apparatus according to an embodiment of the present disclosure is shown.

[0024] Figure 5 yes Figure 4 Exploded view of the bearing cleaning device shown;

[0025] Figures 6A to 6C The diagram schematically shows top views of three different arrangements of the scraper of the bearing cleaning apparatus according to embodiments of the present disclosure;

[0026] Figure 7 yes Figure 4 The cross-sectional view of the bearing cleaning device shown.

[0027] Explanation of reference numerals in the attached figures:

[0028] 1000: CT equipment;

[0029] 100: Bearing cleaning device;

[0030] 200: Inspection Channel;

[0031] 300: Scanning device;

[0032] 400: Object to be inspected;

[0033] 500: Bearing;

[0034] 110: Bracket;

[0035] 120: Connector;

[0036] 130: Cleaning parts;

[0037] 111: First connecting rod;

[0038] 112: Frame;

[0039] 112b: Second connecting rod;

[0040] 112c: Third connecting rod;

[0041] 113: Mounting rod;

[0042] 114: Scraper mounting screws;

[0043] 115: Welding screws;

[0044] 131: Scraped parts;

[0045] 131a: First scraper;

[0046] 131b: Second scraper;

[0047] 132: Base plate;

[0048] 133: Side panel;

[0049] 310: Radiation source;

[0050] 320: Detector.

[0051] It should be noted that, for clarity, the dimensions of the overall / partial structure or the overall / partial region in the drawings used to describe the embodiments of this disclosure may be enlarged or reduced, i.e., these drawings are not drawn to actual scale. Detailed Implementation

[0052] The embodiments of the present disclosure will now be described with reference to the accompanying drawings. However, it should be understood that these descriptions are exemplary only and are not intended to limit the scope of the disclosure. In the following detailed description, numerous specific details are set forth to provide a thorough understanding of the embodiments of the present disclosure for ease of explanation. However, it will be apparent that one or more embodiments may be practiced without these specific details. Furthermore, descriptions of well-known structures and techniques are omitted in the following description to avoid unnecessarily obscuring the concepts of the present disclosure.

[0053] The terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit this disclosure. The terms “comprising,” “including,” etc., as used herein indicate the presence of the stated features, steps, operations, and / or components, but do not exclude the presence or addition of one or more other features, steps, operations, or components.

[0054] All terms used herein (including technical and scientific terms) have the meanings commonly understood by those skilled in the art, unless otherwise defined. It should be noted that the terms used herein are to be interpreted in a manner consistent with the context of this specification, and not in an idealized or overly rigid way.

[0055] When using expressions such as "at least one of A, B, and C", they should generally be interpreted in accordance with the meaning that is commonly understood by a person skilled in the art (e.g., "a system having at least one of A, B, and C" should include, but is not limited to, a system having A alone, a system having B alone, a system having C alone, a system having A and B, a system having A and C, a system having B and C, and / or a system having A, B, and C, etc.).

[0056] In related technologies, the bearings in CT-type baggage security inspection systems require periodic lubrication. During rotation, this lubricant can splash onto the coding strip of the slip ring, affecting speed feedback and data transmission. Therefore, excess lubricant needs to be cleaned promptly. Cleaning the lubricant by disassembling the bearings and slip rings is not only time-consuming and labor-intensive, but may also affect the normal operation of other equipment components.

[0057] This disclosure provides, in some embodiments, a bearing cleaning device and a CT device using the bearing cleaning device. The bearing cleaning device includes: a support; a connector mounted on the support, wherein the connector is configured to connect the support to a reserved window of the CT device, the reserved window providing a path or space for mounting a first component in the CT device; and a cleaning member mounted on the support, wherein the cleaning member is configured to contact the surface of the bearing in the CT device to be cleaned during cleaning, and to clean undesirable material from the surface of the bearing during relative movement with respect to the bearing.

[0058] According to embodiments of this disclosure, a bearing cleaning device for CT equipment is provided. By incorporating cleaning components, unwanted substances are cleaned and collected during bearing rotation, allowing for timely removal of impurities adhering to the bearing and improving maintenance efficiency and service life. For example, when the unwanted substance is grease, it prevents grease from splashing onto the coding strip of the slip ring. Simultaneously, the scraping components, made of materials such as silicone, ensure scraping hardness without scratching the bearing surface, exhibiting high wear resistance. Furthermore, the entire bearing cleaning device is easy to install and disassemble without removing the bearing and slip ring.

[0059] Figure 1A simplified three-dimensional diagram of a CT scanner is shown schematically. Figure 2 yes Figure 1 Top view of the CT equipment shown.

[0060] It is important to note that Figure 1 and Figure 2 The illustration shows a schematic CT device to help those skilled in the art understand the technical content of this disclosure, but it does not mean that the CT device in the embodiments of this disclosure cannot have other structures.

[0061] like Figure 1 and Figure 2 As shown, a CT scanner 1000 typically includes an inspection channel 200, a scanning device 300, a transport device, and an image processing system (not shown in the figure). The scanning device 300 includes a radiation source 310 and a detector 320. The radiation source 310 radiates rays into the inspection channel 200 to inspect the object 400 passing through the inspection channel 200. The detector 320 receives at least a portion of the rays to acquire a scanned image of the object 400. The rays may include X-rays. The transport device transports the object 400 within the inspection channel 200, and the image processing system processes the scanned images acquired by the detector 320. The transport device and image processing system can be selected appropriately according to the application scenario. For example, the transport device may be a conveyor belt, and the image processing system may be a computer and monitor used with security inspection equipment.

[0062] For example, the CT device 1000 can be a CT-type security inspection machine, suitable for inspecting packages, suitcases, handbags, and other items 400 in places such as train stations, airports, and docks for prohibited items such as explosives and flammable materials. The CT-type security inspection machine can generate a three-dimensional scan image of the item 400 through tomographic scanning, enabling rapid, three-dimensional imaging inspection of the item 400. The bearings and slip rings of the CT-type security inspection machine are core components. During daily use and maintenance, it is necessary to regularly add lubricating grease to the bearings and promptly remove excess grease.

[0063] In some embodiments, the CT device 1000 includes a bearing cleaning device 100 provided in some embodiments of this disclosure. Figure 1 and Figure 2 The following further elaborates on the technical solutions provided by the embodiments of this disclosure.

[0064] Figure 3 This diagram schematically illustrates the installation effect of a bearing cleaning device according to an embodiment of the present disclosure; Figure 4 A schematic diagram of a bearing cleaning apparatus according to an embodiment of the present disclosure is shown. Figure 5 yes Figure 4 Exploded view of the bearing cleaning device shown; Figures 6A to 6CThe diagram schematically shows top views of three different arrangements of the scraper of the bearing cleaning apparatus according to embodiments of the present disclosure; Figure 7 yes Figure 4 The cross-sectional view of the bearing cleaning device shown.

[0065] like Figure 3 and Figure 4 As shown, in some embodiments, the bearing cleaning device 100 includes a bracket 110, a connector 120, and a cleaning component 130.

[0066] The connector 120 is mounted on the bracket 110, and the connector 120 connects the bracket 110 to a reserved window of the CT device 1000. The reserved window provides a path or space for installing a first component (not shown) in the CT device 1000. For example, the first component may be an encoder of the CT device 1000, which is installed on the CT device 1000 through the reserved window.

[0067] The cleaning component 130 is also installed on the bracket 110. When cleaning, the cleaning component 130 contacts the surface to be cleaned of the bearing 500 in the CT device 1000. During the relative movement with the bearing 500, it cleans the undesirable substances on the surface to be cleaned.

[0068] In some embodiments, the reserved window is located near a local area of ​​the surface to be cleaned, the bracket 110 extends through the reserved window into the CT device 1000, and the cleaning component 130 is located at the end of the bracket 110 and contacts the local area.

[0069] In some embodiments, the bracket 110 is fixed to the reserved window, and the cleaning component 130 is fixed to the end of the bracket 110. During the rotation of the bearing 500, the local area near the reserved window on the surface to be cleaned is continuously switched so that the cleaning component 130 can clean the unwanted substances on the contacted local area. That is to say, the cleaning component 130 does not clean a fixed area of ​​the bearing 500, but cleans while the bearing 500 is rotating, ensuring that all areas of the bearing 500 that need to be cleaned are covered.

[0070] In some embodiments, the projection of the cleaning component 130 onto the plane containing the reserved window is within the range of the reserved window. This is because the opening size of the reserved window is usually not large, and a cleaning component 130 that is too large would be inconvenient to enter or exit the reserved window. Therefore, when designing the size of the cleaning component 130, a customized approach is adopted, taking into account both the cleaning function and the opening size of the reserved window.

[0071] In some embodiments, undesirable substances include grease. For critical components such as bearings and slip rings, undesirable substances typically refer to substances that negatively impact or even damage the operation of these components. A certain amount of grease is necessary for rotating parts such as bearings, but excessive grease can affect the components. For example, grease splashing onto the coding tape of slip rings can affect speed feedback and data transmission, requiring timely cleaning. In poorly sealed or harsh operating environments, dust or powdery substances may also fall into the bearings, thereby damaging them; therefore, these are also undesirable substances and require timely cleaning.

[0072] During rotation, bearing 500 may accumulate excess grease, dust, or debris, affecting its use. Disassembling bearing 500 to clean these substances requires nearly the same amount of work as disassembling and reassembling the entire device, which is time-consuming and labor-intensive. The bearing cleaning device 100 provided in this embodiment cleans excess grease and other substances without disassembling bearing 500, significantly reducing wasted effort.

[0073] like Figure 5 As shown, in some embodiments, the cleaning member 130 includes N scraping members 131. Each scraping member 131 contacts the surface to be cleaned to scrape away unwanted substances from the surface; wherein the N scraping members 131 are spaced apart along the rotation direction of the bearing 500, and N is an integer greater than or equal to 2. For example, Figure 5 There are 7 scraping components 131 arranged at intervals. The number of scraping components 131 can be appropriately selected according to the size of the reserved window and the amount of undesirable substances on the surface to be cleaned. Scraping components that are too dense or too sparse are not conducive to timely cleaning of undesirable substances.

[0074] It is worth noting that the primary function of the cleaning component 130 is to remove unwanted substances from the surface of the bearing 500. Therefore, the cleaning component 130 is not limited to the form of the scraper 131. For example, when the unwanted substance on the surface to be cleaned is dust or powder, scraping may not be suitable; a brush or similar cleaning method can be used. Furthermore, if the unwanted substance on the surface to be cleaned has strong adsorption properties, neither sweeping nor scraping is ideal; a shovel-like method can be employed. In short, the specific form of the cleaning component 130 can be appropriately selected based on the unwanted substance to be removed.

[0075] When the cleaning component 130 takes the form of a scraper 131, it can effectively clean undesirable substances such as grease, and each scraper 131 can scrape the grease on the surface to be cleaned.

[0076] like Figure 3 and Figure 5 As shown, in some embodiments, the bracket 110 includes a first connecting rod 111, a frame 112, and a mounting rod 113.

[0077] One end of the first connecting rod 111 is connected to the mounting part on one side of the reserved window, and the other end is connected to the mounting part on the other side of the reserved window.

[0078] The frame 112 is connected to the first connecting rod 111. For example, the frame 112 and the first connecting rod 111 can be connected together by welding screws 115, which facilitates disassembly and installation. The frame 112 includes a second connecting rod 112b and a third connecting rod 112c that are perpendicular to the first connecting rod 111.

[0079] Mounting rod 113 is positioned opposite to first connecting rod 111. One end of mounting rod 113 is connected to second connecting rod 112b, and the other end is connected to third connecting rod 112c.

[0080] N scraping elements 131 are connected to the mounting rod 113, and the N scraping elements 131 extend in a direction perpendicular to the mounting rod 113 so as to contact the surface to be cleaned during cleaning.

[0081] For example, connection holes can be made on the scraper 131 and the mounting rod 113 respectively. Scraper mounting screws 114 are then passed sequentially through the connection holes of N scrapers 131 and mounting rods 113 to connect them together, clamping the N scrapers 131 between the mounting rods 113, with adjacent scrapers 131 having a specific interval. Two scraper mounting screws 114 can be used to fix the mounting rods 113 and the N scrapers to the frame 112, preventing the N scrapers 131 from rotating and ensuring that the N scrapers 131 are in contact with the surface to be cleaned during cleaning.

[0082] A spring can also be installed at the connection between the scraper 131 and the mounting rod 113 to provide cushioning for the scraper 131 and reduce impact.

[0083] like Figures 5 to 6C As shown in the figure, in some embodiments, each scraper 131 is plate-shaped, and the opposite sides of any two adjacent scrapers 131 are parallel to each other. For example, the opposite sides of the first scraper 131a and the second scraper 131b are parallel to each other.

[0084] During the rotation of bearing 500, the same location on the surface to be cleaned is scraped by N scraping elements 131 in sequence to remove grease. For example... Figures 6A to 6C As shown, the bearing 500 rotates along the rotation direction, rotating different local areas of the surface to be cleaned to below the bearing cleaning device 100. The scraper 131 scrapes off the excess grease on the surface to be cleaned. As the bearing 500 rotates, the excess grease gradually fills the space on both sides of each scraper 131 from left to right.

[0085] Since the first scraper 131a scrapes the grease first, theoretically the gap between the first scraper 131a and the second scraper 131b will be filled with grease first. Therefore, the spacing of the scrapers can be set according to the order of scraping to make it easier for the scrapers to hold more grease and improve the service life.

[0086] In some embodiments, the N scraping elements 131 are arranged at intervals along the rotation direction of the bearing 500, including: the N scraping elements 131 are arranged at uniform intervals, such as... Figure 6A As shown, the intervals between any two adjacent scrapers 131 among the seven scraping elements 131 are all equal; or, for the first two scrapers 131 that scrape the grease, the interval between them is greater than the interval between any of the other scrapers 131, such as... Figure 6B As shown, when the distance between the first scraping member 131a and the second scraping member 131b is relatively large, the distance between the remaining five scraping members 131 is equal. Figure 6C As shown, when the distance between the first scraper 131a and the second scraper 131b is relatively large, the distance between the remaining five scrapers 131 decreases sequentially. Since more grease is scraped first, the larger distance between the scrapers allows for more grease to be accommodated, thus reducing the frequency of cleaning the grease from the scrapers.

[0087] like Figure 7 As shown, in some embodiments, the surface to be cleaned is an arc-shaped surface. When not in contact with the surface, the end faces of the N scrapers 131 that contact the surface are located on the same plane. Alternatively, the end faces of the N scrapers 131 that contact the surface are arc-shaped, and the curvature of each arc-shaped surface matches the curvature of the contact location. For example, when scrapers 131 are used to scrape excess grease from the inner ring of a bearing 500, the matching curvature of the arc-shaped surface with the curvature of the contact location allows the scrapers 131 to conform to the arc-shaped surface of the bearing (such as the surface of the inner ring), achieving a better scraping effect. It should be noted that... Figure 7 The relative positions of the bearing cleaning device 100 and the bearing 500 shown are merely an example to illustrate embodiments of this disclosure and are not intended to limit the specific location of the surface to be cleaned.

[0088] Please continue reading. Figure 7 In some embodiments, the cleaning component 130 further includes a base plate 132 and a side plate 133. The base plate 132 is perpendicular to the direction of gravity and is connected to the bottom of the N scraping components 131; the side plate 133 is parallel to the direction of gravity, is connected to the base plate 132, and is opposite to the surface to be cleaned.

[0089] Understandably, when the cleaning component 130 cleans up excess grease, some grease will be stored in the gap area between the scraping components 131. When the grease reaches a certain amount, if the cleaning component 130 is not removed in time, the grease will fall below the cleaning component 130 under the action of gravity, causing secondary pollution to the CT equipment 1000. Therefore, the introduction of the base plate 132 and the side plate 133 can catch the grease falling from the scraping component 131 and avoid secondary pollution.

[0090] In some embodiments, the scraper 131 is made of silicone.

[0091] like Figure 5 As shown, for example, the scraper 131 can be cut from a silicone sheet into a plate shape that fits the surface to be cleaned. Because silicone has a certain degree of flexibility and wear resistance, it ensures that the silicone scraper 131 adheres to the surface of the bearing 500 to be cleaned without scratching the bearing 500. After a suitable amount of grease is collected in the gaps between the scraper pieces 131, the entire bearing cleaning device 100 is removed, the grease is cleaned, and it is reinstalled for reuse. After prolonged use, the scraper 131 may experience wear, causing it to no longer fit the surface of the bearing 500 to be cleaned. It can be replaced by removing the scraper mounting screws 114.

[0092] The silicone scraper 131 of this embodiment meets the hardness requirements during cleaning without scratching the surface of the bearing 500. At the same time, the silicone scraper 131 is wear-resistant and easy to replace even after wear.

[0093] Those skilled in the art will understand that the features described in the various embodiments and / or claims of this disclosure can be combined or combined in various ways, even if such combinations or combinations are not explicitly described in this disclosure. In particular, the features described in the various embodiments and / or claims of this disclosure can be combined or combined in various ways without departing from the spirit and teachings of this disclosure. All such combinations and / or combinations fall within the scope of this disclosure.

[0094] The embodiments of this disclosure have been described above. However, these embodiments are for illustrative purposes only and are not intended to limit the scope of this disclosure. Although various embodiments have been described above, this does not mean that the measures in the various embodiments cannot be used advantageously in combination. The scope of this disclosure is defined by the appended claims and their equivalents. Various substitutions and modifications can be made by those skilled in the art without departing from the scope of this disclosure, and all such substitutions and modifications should fall within the scope of this disclosure.

Claims

1. A bearing cleaning device, comprising: support; A connector is mounted on the bracket, wherein the connector is configured to connect the bracket to a reserved window of the CT device, the reserved window providing a path or space for installing an encoder in the CT device, the reserved window being a local area near a curved surface of the inner ring of a bearing in the CT device, and the bracket extending into the interior of the CT device through the reserved window; A cleaning component is mounted on the bracket, and the cleaning component is located at the end of the bracket; The support includes: A first connecting rod, one end of which is connected to the mounting part on one side of the reserved window, and the other end of which is connected to the mounting part on the other side of the reserved window; A frame connected to the first connecting rod, the frame including a second connecting rod and a third connecting rod perpendicular to the first connecting rod; An installation rod is provided opposite to the first connecting rod, with one end of the installation rod connected to the second connecting rod and the other end connected to the third connecting rod; The cleaning component is connected to the mounting rod and is configured to contact a local area of ​​the arc-shaped surface during cleaning. During relative movement with the bearing, it cleans undesirable substances on the arc-shaped surface, including grease.

2. The bearing cleaning device according to claim 1, wherein, The bracket is fixed to the reserved window, and the cleaning component is fixed to the end of the bracket. The cleaning component removes unwanted substances from the curved surface, including: During the rotation of the bearing, the local area on the arc-shaped surface near the reserved window is constantly switching so that the cleaning component can clean the undesirable substances on the contacted local area.

3. The bearing cleaning device according to claim 1, wherein, The projection of the cleaning component onto the plane where the reserved window is located is within the range of the reserved window.

4. The bearing cleaning device according to any one of claims 1 to 3, wherein, The cleaning component includes: N scraping tools, each of which contacts the arcuate surface to scrape away unwanted material from the arcuate surface; The N scraping elements are arranged at intervals along the rotation direction of the bearing, where N is an integer greater than or equal to 2.

5. The bearing cleaning device according to claim 4, wherein, The cleaning component removes unwanted substances from the curved surface, including: Each of the scrapers is configured to scrape grease off the curved surface.

6. The bearing cleaning device according to claim 5, wherein, Each of the scraping elements is plate-shaped, and the opposite sides of any two adjacent scraping elements are parallel to each other. During the rotation of the bearing, for the same position on the arc-shaped surface, the grease is scraped by N scraping elements in sequence. The N scraping elements are arranged at intervals along the rotation direction of the bearing, including: N scraping elements are arranged at even intervals; or... For the first two scraping parts that scrape the grease, the distance between them is greater than the distance between any of the other scraping parts.

7. The bearing cleaning device according to claim 4, wherein, In a state where they are not in contact with the arc-shaped surface, the end faces of each of the N scraping components that are in contact with the arc-shaped surface are located on the same plane; or, The end faces of each of the N scraping components that contact the arc-shaped surface are arc-shaped surfaces, and the curvature of each arc-shaped surface matches the curvature of the contact position.

8. The bearing cleaning device according to claim 5, wherein, The cleaning component also includes: The base plate, perpendicular to the direction of gravity, is connected to the bottom of the N scraping components; The side plate is parallel to the direction of gravity, is connected to the bottom plate, and is opposite to the arc-shaped surface.

9. The bearing cleaning device according to claim 4, wherein, The bracket include: N scraping elements are connected to the mounting rod and extend in a direction perpendicular to the mounting rod to contact the arcuate surface during cleaning.

10. The bearing cleaning device according to claim 4, wherein, The N scraping parts are made of silicone.

11. A CT scanner, characterized in that, The bearing cleaning device includes any one of claims 1 to 10.

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