Bearing running-in device

Abstract

The utility model belongs to the technical field of bearing running-in, and discloses a bearing running-in device. The bearing running-in device is used for bearing running-in of the CT bulb tube, and a bearing is installed in the CT bulb tube. The device comprises a rack, a first driving piece, a fixing frame and a second driving piece, and the first driving piece is arranged on the rack; the CT bulb tube is arranged on the fixing frame, the first driving piece is in transmission connection with the fixing frame, and the first driving piece is used for driving the fixing frame to rotate by at least one preset angle; the second driving piece is in transmission connection with the bearing and used for driving the bearing to rotate, and the rotating axis of the bearing intersects with the rotating axis of the fixing frame. According to the utility model, the manual operation intensity can be reduced, the running-in efficiency is improved, and the running-in quality is ensured; and meanwhile, the using environment of the bearing running-in process is met, and accuracy and rationality are guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of bearing running-in, in particular to a bearing running-in device. Background Art

[0002] With the popularization of medical CT (Computed Tomography), CT scanning imaging has become a routine detection method to assist doctors in diagnosing lesions.

[0003] As a core component of CT, the performance parameters and quality indicators of CT tubes are subject to ever-greater scrutiny. Bearings, as key components within CT tubes, play a crucial role in improving tube performance. CT tube bearings are classified as either liquid metal bearings or ball bearings. Ball bearings utilize rolling friction to achieve relative rotation between the inner and outer bearing rings. During CT tube exposure, the bearing speed can reach 9,000-12,000 rpm. After initial assembly of the balls with the inner and outer rings, high-speed operation can generate significant noise and vibration due to limitations in machining accuracy and uniformity of the ball coating. This can directly impact CT tube performance. Therefore, before CT tube exposure, a run-in of the ball bearings is required to ensure smooth operation and prevent severe wear between the balls and the inner and outer ring raceways, which can lead to bearing seizure, caused by sudden high-speed operation.

[0004] Currently, the running-in of CT tube bearings is performed manually, which is labor-intensive, inefficient, and difficult to ensure the quality of the running-in. Simply running-in the bearings themselves cannot simulate the operating environment of the bearings in the CT tube, resulting in poor running-in accuracy. Utility Model Content

[0005] The purpose of the utility model is to provide a bearing running-in device, which is used to reduce the intensity of manual work, improve the running-in efficiency, and ensure the running-in quality; at the same time, it conforms to the use environment of the bearing running-in process and ensures accuracy and rationality.

[0006] To achieve this purpose, the present invention adopts the following technical solutions:

[0007] A bearing running-in device is used for running-in of the bearing of a CT tube. The bearing is installed in the CT tube. The bearing running-in device includes:

[0008] frame;

[0009] A first driving member is provided on the frame;

[0010] a fixed frame, the CT tube is mounted on the fixed frame, the first driving member is in driving connection with the fixed frame, and the first driving member is used to drive the fixed frame to rotate at least a preset angle;

[0011] The second driving member is transmission-connected to the bearing and is used to drive the bearing to rotate, and the rotation axis of the bearing intersects with the rotation axis of the fixing frame.

[0012] As an optional solution of the bearing running-in device, a noise detection component is provided on the frame, and the noise detection component is connected to the first driving member by signal.

[0013] As an optional solution of the bearing running-in device, a vibration detection component is provided on the frame, and the vibration detection component is connected to the first driving member by signal.

[0014] As an optional solution for the bearing running-in device, a cooling assembly is provided at one end of the second driving member away from the CT tube, and the cooling assembly is arranged opposite to the CT tube.

[0015] As an optional solution of the bearing running-in device, a control box is provided on the frame, and the control box is connected to the first driving member by signal.

[0016] As an optional solution for the bearing running-in device, the fixing frame is plate-shaped, and the side of the fixing frame away from the CT tube is connected to one end of the rotating shaft, and the other end of the rotating shaft is transmission-connected to the first driving member, and the first driving member and the rotating shaft are connected by a coupling.

[0017] As an optional solution of the bearing running-in device, the second driving member is a driving coil.

[0018] Beneficial effects:

[0019] In this utility model, the bearing is first assembled within the CT tube, and the second drive member drives the bearing to rotate. During the running-in process, the first drive member drives the CT tube to rotate a certain angle. This device eliminates the need for manual operation to run-in the CT tube bearing, effectively reducing manual labor intensity, improving running-in efficiency, and avoiding the problem of reduced running-in quality due to differences in manual operation skills. At the same time, this device directly runs in the bearing within the CT tube, and uses the first drive member to drive the fixed frame and CT tube to rotate to simulate various angle conditions during the running-in process. This fully meets the operating environment of the bearing running-in process, and the running-in is accurate and reasonable. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a structural schematic diagram of a bearing running-in device provided by an embodiment of the utility model;

[0021] Figure 2 Schematic diagram of different rotation angles of the bearing running-in device during the first running-in cycle provided by an embodiment of the present invention;

[0022] Figure 3 It is a schematic diagram of different rotation angles of the bearing running-in device during the second running-in cycle provided by an embodiment of the present invention.

[0023] In the picture:

[0024] 100, CT tube;

[0025] 1. Frame; 2. First drive member; 3. Fixed frame; 4. Second drive member; 5. Noise detection component; 6. Vibration detection component; 7. Cooling component; 8. Control box; 9. Rotating shaft. DETAILED DESCRIPTION

[0026] The present invention will be further described in detail below with reference to the accompanying drawings and examples. It should be understood that the specific embodiments described herein are intended only to illustrate the present invention and are not intended to limit the present invention. It should also be noted that, for ease of description, the accompanying drawings only illustrate portions relevant to the present invention, not all of its components.

[0027] In the description of this utility model, unless otherwise specified or limited, the terms "connected," "connect," and "fixed" should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integration; mechanical connection or electrical connection; direct connection or indirect connection through an intermediate medium; internal communication between two components or interaction between two components. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on the specific circumstances.

[0028] In the present invention, unless otherwise expressly specified or limited, a first feature being "above" or "below" a second feature may include the first and second features being in direct contact, or may include the first and second features being in contact not directly but through another feature between them. Moreover, a first feature being "above," "above," and "above" a second feature may include the first feature being directly above or obliquely above the second feature, or may simply mean that the first feature is higher in level than the second feature. A first feature being "below," "below," and "below" a second feature may include the first feature being directly below or obliquely below the second feature, or may simply mean that the first feature is lower in level than the second feature.

[0029] In the description of this embodiment, the terms "upper," "lower," "right," and other orientations or positional relationships are based on the orientations or positional relationships shown in the accompanying drawings and are intended solely for ease of description and simplified operation. They do not indicate or imply that the devices or components referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on the present invention. Furthermore, the terms "first" and "second" are used solely for descriptive purposes and have no special meaning.

[0030] Please see the attached Figure 1 The first aspect of this embodiment relates to a bearing running-in device (hereinafter referred to as the "device"), which is used for the running-in of the bearing of a CT tube 100, wherein the bearing is installed in the CT tube 100. The device includes a frame 1, a first driving member 2, a fixing frame 3, and a second driving member 4. The first driving member 2 is arranged on the frame 1; the CT tube 100 is arranged on the fixing frame 3, the first driving member 2 is in transmission connection with the fixing frame 3, and the first driving member 2 is used to drive the fixing frame 3 to rotate at least a preset angle; the second driving member 4 is in transmission connection with the bearing, and the second driving member 4 is used to drive the bearing to rotate, and the rotation axis of the bearing intersects with the rotation axis of the fixing frame 3.

[0031] In this embodiment, the frame 1 is a frame structure formed by welding or threading a plurality of angle steels. Casters are provided at the bottom of the frame 1. The device can be freely moved by the casters. The casters are provided with a locking mechanism to lock the casters after the device is moved to a preset position, thereby ensuring the stability of the placement. The first drive member 2 is provided at the top of the frame 1. The first drive member 2 can be a motor, specifically a stepping motor, to facilitate the control of the rotation angle of the fixing frame 3. The first drive member 2 can be fixed to the frame 1 in a detachable connection manner, specifically by a plurality of bolts. Of course, the first drive member 2 can be connected to the frame 1 via a mounting base, and a mounting hole for the bolt to pass through is provided on the mounting base, and the bolt is screwed to the frame 1.

[0032] In practice, the CT tube 100 is a circumferentially rotating body. The mounting frame 3 is provided with a connection structure for securing the CT tube 100. Specifically, the mounting frame 3 is provided with a U-shaped seat, within which half of the outer wall of the CT tube 100 rests. A U-shaped slat covers the other half of the outer wall of the CT tube 100, connecting the slat to the seat to secure the CT tube 100. The U-shaped slat and the seat can be fastened together using threaded or clipped connections. When the first drive member 2 rotates the mounting frame 3 by a certain angle, the mounting frame 3 simultaneously rotates the CT tube 100 by a certain angle. In this embodiment, a bearing is first assembled within the CT tube 100, and the second drive member 4 drives the bearing to rotate. The rotation axis of the mounting frame 3 is horizontal, and the bearing's rotation axis is perpendicular to the rotation axis of the mounting frame 3.

[0033] The present device no longer relies on manual operation to run-in the bearings of the CT tube 100, effectively reducing manual labor intensity, improving running-in efficiency, and avoiding the problem of decreased running-in quality due to differences in manual operation levels. At the same time, the present device directly runs in the bearings on the CT tube 100, and utilizes the first drive member 2 to drive the fixing frame 3 and the CT tube 100 to rotate to simulate various angle working conditions during the running-in process, which fully complies with the use environment of the bearing running-in process and ensures accurate and reasonable running-in.

[0034] Optionally, a noise detection component 5 is provided on the frame 1 , and the noise detection component 5 is signal-connected to the first driving member 2 .

[0035] In this embodiment, the noise detection component 5 includes a noise meter, which can directly measure the noise value and noise level during the bearing running-in process. At the same time, the noise detection component 5 also includes a controller, which is connected to the first drive member 2 through a signal connection to ensure that when the noise reaches a preset level, the first drive member 2 stops working or drives the fixing frame 3 to rotate a certain angle again to perform the running-in operation of the next angle working condition.

[0036] Optionally, a vibration detection component 6 is provided on the frame 1 , and the vibration detection component 6 is signal-connected to the first driving member 2 .

[0037] In this embodiment, the vibration detection component 6 includes a vibrometer, which is an instrument that can directly indicate the peak, average or root mean square value of vibration quantities such as displacement, velocity, acceleration and acceleration derivative. At the same time, the vibration detection component 6 can be further connected to the first drive member 2 by signal to ensure that when the vibration value reaches a preset value, the first drive member 2 stops working or drives the fixed frame 3 to rotate again by a certain angle to perform a running-in operation for the next angle working condition.

[0038] Those skilled in the art will appreciate that the noise detection component 5 and the vibration detection component 6 can be used in conjunction to assess and evaluate the bearing running-in status using multiple parameters to ensure the quality and effectiveness of the bearing running-in.

[0039] Optionally, a cooling assembly 7 is provided at one end of the second driving member 4 away from the CT tube 100 , and the cooling assembly 7 is arranged opposite to the CT tube 100 .

[0040] In this embodiment, the cooling assembly 7 uses a cooling air duct, which blows air toward the CT tube 100 and the bearings in the running-in process to cool them down, thereby ensuring the stability of the temperature field during the running-in process and preventing excessive temperature from affecting the running-in performance of the bearings or reducing the quality of the bearings.

[0041] Optionally, a control box 8 is provided on the frame 1 , and the control box 8 is signal-connected to the first driving member 2 .

[0042] The control box 8 and the first drive member 2 form an integrated control platform, which can not only be connected to the first drive member 2 by signal to provide the first drive member 2 with a control signal of the rotation angle, but the control box 8 can also be connected to the CT tube 100, the second drive member 4, the cooling component 7, the noise detection component 5 and the vibration detection component 6 by signal to form an automated integrated control system to ensure automation and stability during the bearing running-in process.

[0043] For example, when the noise level and vibration value fed back by the noise detection component 5 and the vibration detection component 6 exceed the preset level and preset value, the control box 8 can directly drive the CT tube 100 and the second drive member 4 to stop working, so as to facilitate manual inspection of the bearing and determine whether the bearing has entered a scrap state or a repairable state.

[0044] Optionally, the fixing frame 3 is plate-shaped, and the side of the fixing frame 3 away from the CT tube 100 is connected to one end of the rotating shaft 9, and the other end of the rotating shaft 9 is transmission-connected to the first driving member 2, and the first driving member 2 and the rotating shaft 9 are connected via a coupling.

[0045] In this embodiment, the fixing frame 3 is a plate-shaped member. One side of the fixing frame 3 is equipped with a U-shaped seat and U-shaped strips to secure the CT tube 100. The other side is directly fixedly connected to one end of the rotating shaft 9. The first driving member 2 drives the rotating shaft, thereby driving the fixing frame 3 and the CT tube 100 to rotate. A coupling is provided between the first driving member 2 and the rotating shaft 9 to transmit torque. During the torque transmission process, the coupling absorbs and mitigates shock and vibration caused by the starting and stopping of the first driving member 2 and the changes in the force applied to the rotating shaft 9. This buffering effect helps protect the first driving member 2 from damage and prolongs the service life of the device. The coupling also compensates for axial and / or radial offset caused by inaccurate manufacturing and installation, as well as deformation of the rotating shaft 9 during operation.

[0046] Optionally, the second driving member 4 is a driving coil.

[0047] In this embodiment, the second drive element 4 utilizes a drive coil that drives the bearing rotation using the principle of electromagnetic induction. Adjusting the bearing's rotational parameters requires only controlling the electrical parameters of the second drive element 4, resulting in high adjustability. Furthermore, the drive coil efficiently converts electrical energy into mechanical energy through electromagnetic induction to drive the bearing rotation. Energy loss during this process is relatively minimal, resulting in high motor efficiency. Furthermore, using the drive coil to drive the bearing prevents friction and wear during bearing rotation.

[0048] Please see the attached Figure 2 and attached Figure 3 , the running-in method of this device specifically includes:

[0049] The CT tube 100 and the second driving member 4 are respectively turned on;

[0050] The CT tube 100 is sequentially positioned at a first preset angle λ1, a second preset angle λ2, a third preset angle λ3, and a fourth preset angle λ4;

[0051] Measure a first vibration amount A1 and a first noise amount B1 at a first preset angle λ1, measure a second vibration amount A2 and a second noise amount B2 at a second preset angle λ2, measure a third vibration amount A3 at a third preset angle λ3, and measure a fourth vibration amount A4 and a fourth noise amount B4 at the first noise amount B3 and at a fourth preset angle λ4;

[0052] When the first vibration amount A1, the second vibration amount A2, the third vibration amount A3 and the fourth vibration amount A4 are all within the qualified range and the first noise amount B1, the second noise amount B2, the first noise amount B3 and the fourth noise amount B4 are all within the qualified range, the bearing running-in is judged to be qualified; otherwise, the bearing running-in is judged to be unqualified.

[0053] In this embodiment, the CT tube 100 and the second driving member 4 are first started to rotate the bearing. The first driving member 2 is then used to adjust the position of the CT tube 100 to simulate various operating conditions of the bearing.

[0054] The running-in method based on this device can accurately simulate the running-in process conditions of the bearing, thereby ensuring accuracy and rationality.

[0055] Exemplarily, the bearing undergoes a first running-in cycle, wherein the first preset angle λ1 is 0; the second preset angle λ2 is -45°; the third preset angle λ3 is +45°; and the fourth preset angle λ4 is 0. At each preset angle, the first vibration amount A1, the second vibration amount A2, the third vibration amount A3, the fourth vibration amount A4, the first noise amount B1, the second noise amount B2, the first noise amount B3, and the fourth noise amount B4 are measured. If the first vibration amount A1, the second vibration amount A2, the third vibration amount A3, the fourth vibration amount A4, the first noise amount B1, the second noise amount B2, the first noise amount B3, and the fourth noise amount B4 are all within the acceptable range, the bearing run-in is determined to be acceptable. Otherwise, the first running-in cycle is exited, and the bearing is manually inspected or repaired.

[0056] For example, the bearing can also use a second running-in cycle. During the second running-in cycle, the first preset angle λ1 is 0; the second preset angle λ2 is -90°; the third preset angle λ3 is +90°; and the fourth preset angle λ4 is 0. At each preset angle, the first vibration amount A1, the second vibration amount A2, the third vibration amount A3, the fourth vibration amount A4, the first noise amount B1, the second noise amount B2, the first noise amount B3, and the fourth noise amount B4 are measured. When the first vibration amount A1, the second vibration amount A2, the third vibration amount A3, the fourth vibration amount A4, the first noise amount B1, the second noise amount B2, the first noise amount B3, and the fourth noise amount B4 are all within the qualified range, the bearing run-in can be determined to be qualified. Otherwise, the second running-in cycle is exited, and the bearing is manually inspected or repaired.

[0057] Obviously, the above-described embodiments of the present invention are merely examples for the purpose of clearly illustrating the present invention and are not intended to limit the manner in which the present invention is to be implemented. A person skilled in the art would be able to make various obvious changes, readjustments, and substitutions without departing from the scope of protection of the present invention. It is not necessary and impossible to enumerate all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention shall be included within the scope of protection of the claims of the present invention.

Claims

1. A bearing running-in device for the bearing running-in of a CT tube (100), characterized in that: The bearing is installed in the CT tube (100), and the bearing running-in device comprises: Rack (1); A first driving member (2) is provided on the frame (1); A fixed frame (3), the CT tube (100) is arranged on the fixed frame (3), the first driving member (2) is in transmission connection with the fixed frame (3), and the first driving member (2) is used to drive the fixed frame (3) to rotate at least one preset angle; The second driving member (4) is in driving connection with the bearing and is used to drive the bearing to rotate, and the rotation axis of the bearing intersects with the rotation axis of the fixing frame (3).

2. The bearing running-in device according to claim 1, characterized in that: A noise detection component (5) is provided on the frame (1), and the noise detection component (5) is signal-connected to the first driving member (2).

3. The bearing running-in device according to claim 1, characterized in that: A vibration detection component (6) is provided on the frame (1), and the vibration detection component (6) is signal-connected to the first driving member (2).

4. The bearing running-in device according to claim 1, characterized in that: A cooling assembly (7) is provided at one end of the second driving member (4) away from the CT tube (100), and the cooling assembly (7) is arranged opposite to the CT tube (100).

5. The bearing running-in device according to claim 1, characterized in that: A control box (8) is provided on the frame (1), and the control box (8) is signal-connected to the first driving member (2).

6. The bearing running-in device according to claim 1, characterized in that: The fixing frame (3) is plate-shaped, and a side of the fixing frame (3) away from the CT tube (100) is connected to one end of a rotating shaft (9), and the other end of the rotating shaft (9) is transmission-connected to the first driving member (2), and the first driving member (2) and the rotating shaft (9) are connected via a coupling.

7. The bearing running-in device according to any one of claims 1 to 6, characterized in that: The second driving member (4) is a driving coil.

Images