A bearing cleaning device and a method for detecting the cleanliness of a bearing during maintenance

Abstract

The application discloses a bearing cleaning device and a maintenance bearing cleanliness detection method, and relates to the field of bearing cleanliness detection.The technical problem that a bearing after cleaning is generally detected for cleanliness by artificial naked-eye observation, and a method for accurately detecting the cleanliness of the bearing after cleaning is lacked is solved.The disassembled bearing sample is placed on a bearing placing assembly, a cover is covered, and a closed space is formed, so that splashing of cleaning liquid in the cleaning process is avoided, and inaccurate detection is avoided.The rotating assembly is rotated to drive the bearing placing assembly to rotate, so that the cleaning liquid sprayed from the nozzle can be sprayed on the bearing sample from different directions.When the cleaning liquid is sprayed to a certain liquid level, the cleaning is performed in cooperation with ultrasonic waves, impurities on the bearing sample can be more completely cleaned, the cleaning process of the whole bearing is more thorough, and finally, the measurement result is more accurate.

Description

Technical Field

[0001] This invention belongs to the field of bearing cleanliness testing, specifically relating to a bearing cleaning device and a method for testing the cleanliness of bearings under maintenance. Background Technology

[0002] To maintain the original performance of bearings in good condition for as long as possible, maintenance and repair are necessary to prevent accidents, ensure operational reliability, and improve productivity and economy. Maintenance should be carried out regularly according to the operating standards corresponding to the mechanical operating conditions. This includes monitoring the operating status, replenishing or replacing lubricant, periodic disassembly, and inspection. The bearing cleaning process mainly involves first recording the bearing's appearance, confirming the amount of residual lubricant, taking samples of the lubricant for testing, and then cleaning with gasoline or kerosene. Currently, the cleanliness of cleaned bearings is generally judged by manual visual inspection, but there is a lack of a method that can accurately test the cleanliness of cleaned bearings. Summary of the Invention

[0003] To address the aforementioned technical problems, this invention provides a bearing cleaning device and a method for detecting the cleanliness of inspected bearings. By placing a disassembled bearing sample onto a bearing placement assembly and then covering it with a lid, a closed space is formed, preventing cleaning fluid from splashing during the cleaning process and causing inaccurate measurements. The rotating assembly drives the bearing placement assembly to rotate, allowing the cleaning fluid from the nozzle to spray onto the bearing sample from different directions. When the cleaning fluid reaches a certain level, ultrasonic cleaning is employed to more thoroughly remove impurities from the bearing sample, ensuring a more complete cleaning process and thus more accurate final measurement results.

[0004] The technical solution adopted in this invention is as follows:

[0005] A bearing cleaning device includes a housing, a cover hinged to the upper part of the housing via a pivot, a plurality of nozzles spaced apart on the lower part of the cover, a rotating assembly disposed inside the housing, and a bearing placement assembly engaged at the upper part of the rotating assembly; an ultrasonic component disposed on the inner wall of the housing, the height of the ultrasonic component being lower than the height of the bearing placement assembly.

[0006] Using the above technical solution, the disassembled bearing sample is placed on the bearing placement assembly. After the cover is closed, a closed space is formed, which will not cause the cleaning fluid to splash during the cleaning process, thus preventing inaccurate detection. The rotation of the rotating assembly drives the bearing placement assembly to rotate, so that the cleaning fluid sprayed from the nozzle can spray the bearing sample from different directions. When the cleaning fluid sprays to a certain level, it is combined with ultrasonic cleaning to more completely remove impurities from the bearing sample, ensuring a more thorough cleaning process and thus more accurate final measurement results.

[0007] Preferably, a first motor is provided above the cover, a fixing plate is provided at the lower part of the cover, the upper part of the fixing plate is connected to the output shaft of the first motor, and several nozzles are spaced apart at the lower part of the fixing plate, with each nozzle connected to an external cleaning fluid pipeline.

[0008] Using the above technical solution, the rotation of the first motor drives the fixed plate to rotate, and the rotation of the fixed plate drives the spray head on it to rotate. The rotation of the spray head can spray the bearing sample at different angles.

[0009] Preferably, the rotating assembly includes a second motor, and the upper part of the second motor is engaged with the bearing placement assembly via a column.

[0010] Using the above technical solution, the rotation of the second motor drives the rotation component to rotate, and the bearing placement component is snapped onto the column to be detachably fixed to the column.

[0011] Preferably, the bearing placement assembly includes a fixing frame, with handles on both sides of the fixing frame, and several locking blocks for securing the disassembled bearing are provided on the fixing frame via several connecting rods.

[0012] Using the above technical solution, the bearing sample can be snapped onto the clamping block, the connecting rod can support and fix the clamping block, and the handle makes it easy to lift the fixing frame.

[0013] Preferably, sliders are provided on both sides of the fixing frame, and annular grooves are provided on the inner wall of the box, and the sliders and grooves can cooperate with each other.

[0014] Using the above technical solution, the sliders work together to make the fixed frame rotate, while the slide groove can provide a certain support for the fixed frame.

[0015] Preferably, the ultrasonic component includes an ultrasonic generator and several ultrasonic transducers, the several ultrasonic transducers are disposed on the side wall of the housing, the ultrasonic generator is disposed on the outer wall of the housing, and the several ultrasonic transducers are electrically connected to the ultrasonic generator.

[0016] Using the above technical solution, the ultrasonic generator converts mains power into a controllable high-frequency sinusoidal current signal and transmits this signal to the ultrasonic transducer. The ultrasonic transducer generates high-frequency high voltage, which together with the side wall of the chamber produces high-frequency resonance, thereby causing the bearing sample on the fixed frame to be subjected to ultrasonic action, so that the impurities on it are thoroughly cleaned into the cleaning fluid.

[0017] Preferably, the bottom of the box body is composed of four inclined plates, and every two inclined plates form a V-shaped inclined plate group. The two V-shaped inclined plate groups are located on both sides of the rotating assembly. The bottom of each of the two V-shaped inclined plate groups is provided with an opening, and several support legs are provided below the opening on the lower part of the box body.

[0018] Using the above technical solution, the V-shaped inclined plate assembly prevents the cleaning fluid from accumulating when it is discharged from the opening, and the support legs facilitate the lifting of the box and provide support.

[0019] Preferably, a control system is also provided on the outer wall of the housing. The control system is electrically connected to several of the nozzles, rotating components and ultrasonic components respectively. The control system is used to control the coordinated operation of several nozzles, rotating components and ultrasonic components.

[0020] A method for testing the cleanliness of bearings during maintenance, using the aforementioned bearing cleaning device, includes the following steps:

[0021] Step 1. Clean all sampling and testing tools, dry and weigh the filter membrane to obtain m1;

[0022] Step 2. Randomly sample from the several sets of bearings that have already been cleaned;

[0023] Step 3. Weigh the sample obtained in Step 2 to obtain its mass m2, and then disassemble the sample.

[0024] Step 4. Clean the sample disassembled in Step 4 to obtain a cleaning solution;

[0025] Step 5. Filter the cleaning solution using a filter membrane;

[0026] Step 6. Dry the filtered membrane to obtain a dried filter membrane;

[0027] Step 7. Weigh the dried filter membrane to obtain its weight m3;

[0028] Step 8. Take the substance on the dried filter membrane for analysis.

[0029] Preferably, the sample cleaning method described in step 4 is as follows:

[0030] Step 401: Place the disassembled bearing samples onto the mounting bracket. Different models of samples have specific clips.

[0031] Step 402: Attach the mounting bracket to the column and close the cover;

[0032] Step 403: The control system controls the first motor to rotate, and at the same time the nozzle sprays cleaning fluid to rinse the bearing from all directions;

[0033] Step 404: At the same time, the second motor rotates, driving the fixed frame to rotate in the opposite direction, increasing the cleaning force of the cleaning fluid sprayed from the nozzle;

[0034] Step 405: When the sprayed cleaning fluid covers the bearing sample located on the fixed frame, the control system controls the ultrasonic component to emit ultrasonic vibrations to further clean the bearing sample with ultrasonic waves.

[0035] Step 406: After cleaning one end for a period of time, the controller opens the opening, allowing the cleaning fluid to enter the collection device; repeat step 403 until the set number of times is reached.

[0036] In summary, due to the adoption of the above technical solution, the beneficial effects of the present invention are:

[0037] The disassembled bearing sample is placed on the bearing placement assembly. After the cover is closed, a closed space is formed, preventing the cleaning fluid from splashing during the cleaning process and causing inaccurate testing. The rotating assembly rotates, causing the bearing placement assembly to rotate, so that the cleaning fluid sprayed from the nozzle can spray the bearing sample from different directions. When the cleaning fluid sprays to a certain level, it is combined with ultrasonic cleaning to more completely remove impurities from the bearing sample, ensuring a more thorough cleaning process and thus more accurate final measurement results. Attached Figure Description

[0038] The present invention will be described by way of example and with reference to the accompanying drawings, wherein:

[0039] Figure 1 This is a schematic diagram of the structure of a bearing cleaning device according to the present invention;

[0040] Figure 2 This is a schematic diagram of the structure of the fixing frame in this invention;

[0041] Figure 3 This is a schematic diagram of the structure of the fixing plate in this invention;

[0042] Figure 4 This is a schematic diagram of the slide groove in this invention;

[0043] Figure 5 This is a flowchart illustrating the bearing cleanliness testing method of the present invention.

[0044] Figure Labels

[0045] 1-First motor; 2-Cover; 3-Rotating shaft; 4-Fixing plate; 5-Nozzle; 6-Box; 7-Ultrasonic transducer; 8-Inclined plate; 9-Support leg; 10-Opening; 11-Second motor; 12-Column; 13-Fixing frame; 14-Handle; 15-Slider; 16-Slide groove; 17-Connecting rod; 18-Clamping block. Detailed Implementation

[0046] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of the embodiments. The components of the embodiments of this application described and marked in the accompanying drawings can be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiments of this application provided in the accompanying drawings is not intended to limit the scope of the claimed application, but merely represents selected embodiments of this application. All other embodiments obtained by those skilled in the art based on the embodiments of this application without inventive effort are within the scope of protection of this application.

[0047] In the description of the embodiments of this application, it should be noted that the terms "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product of the invention is in use. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application. In addition, the terms "first," "second," and "third," etc., are only used to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0048] The following is combined Figures 1-5 The present invention will be described in detail below.

[0049] Example 1

[0050] A bearing cleaning device, as shown in the attached document. Figure 1 The system includes a housing 6, with a cover 2 hinged to the upper part of the housing 6 via a pivot 3. Thirteen nozzles 5 are spaced apart at the lower part of the cover 2. A rotating assembly is located inside the housing 6, with a bearing placement assembly engaged at the upper part of the rotating assembly. An ultrasonic component is installed on the inner wall of the housing 6, its height lower than that of the bearing placement assembly. The disassembled bearing sample is placed on the bearing placement assembly, and the cover 2 is closed, forming a sealed space that prevents cleaning fluid from splashing during the cleaning process, thus avoiding inaccurate testing. The rotating assembly rotates, causing the bearing placement assembly to rotate, allowing the cleaning fluid from the nozzles 5 to spray onto the bearing sample from different directions. When the cleaning fluid reaches a certain level, it is combined with ultrasonic cleaning to more thoroughly remove impurities from the bearing sample, ensuring a more complete cleaning process and thus more accurate final measurement results.

[0051] In this embodiment, refer to the appendix. Figure 3 The cover 2 has a first motor 1 on top and a fixing plate 4 on the bottom. The upper part of the fixing plate 4 is connected to the output shaft of the first motor 1. Thirteen nozzles 5 are spaced apart on the bottom of the fixing plate 4 and are connected to external cleaning fluid pipes. The rotation of the first motor 1 drives the fixing plate 4 to rotate, and the rotation of the fixing plate 4 drives the nozzles 5 to rotate. The rotation of the nozzles 5 can spray the bearing sample at different angles.

[0052] In this embodiment, the rotating assembly includes a second motor 11, and the upper part of the second motor 11 is connected to the bearing placement assembly via a column 12; the rotation of the second motor 11 drives the rotating assembly to rotate, and the bearing placement assembly is detachably fixed to the column 12 by being connected to the column 12.

[0053] In this embodiment, refer to the appendix. Figure 2 The bearing placement assembly includes a fixing frame 13, with handles 14 on both sides of the fixing frame 13. The fixing frame 13 is provided with thirty-two locking blocks 18 for locking the disassembled bearings via six connecting rods 17. The bearing sample can be locked and placed on the locking blocks 18, the connecting rods can support and fix the locking blocks 18, and the handles 14 facilitate lifting the fixing frame 13.

[0054] In this embodiment, refer to the appendix. Figure 4 The fixed frame 13 is provided with sliders 15 on both sides, and the inner wall of the box 6 is provided with annular grooves 16. The sliders 15 and the grooves 16 can cooperate with each other. The cooperation of the sliders 15 and the sliders 15 can make the fixed frame 13 rotate. At the same time, the grooves 16 can provide a certain support for the fixed frame 13.

[0055] In this embodiment, the ultrasonic component includes an ultrasonic generator and two ultrasonic transducers 7. The ultrasonic transducers 7 are disposed on the side wall of the housing 6, and the ultrasonic generator is disposed on the outer wall of the housing 6. The two ultrasonic transducers 7 are electrically connected to the ultrasonic generator. The ultrasonic generator converts the mains power into a controllable high-frequency sinusoidal current signal and transmits this signal to the ultrasonic transducers 7. The ultrasonic transducers 7 generate high-frequency high voltage, which together with the side wall of the housing 6 generates high-frequency resonance, thereby causing the bearing sample on the fixing frame 13 to be subjected to ultrasonic action, so that the impurities on it are thoroughly cleaned into the cleaning fluid.

[0056] In this embodiment, the bottom of the housing 6 is composed of four inclined plates 8, and every two inclined plates 8 form a V-shaped inclined plate group 8. The two V-shaped inclined plate groups 8 are located on both sides of the rotating assembly. The bottom of each of the two V-shaped inclined plate groups 8 is provided with an opening 10, and several support legs 9 are provided at the lower part of the housing 6 below the opening 10. The V-shaped inclined plate groups 8 prevent the cleaning fluid from accumulating when it is discharged from the opening 10, and the support legs 9 facilitate the lifting of the housing 6 and provide support.

[0057] In this embodiment, a control system is also provided on the outer wall of the housing 6. The control system is electrically connected to several nozzles 5, rotating components and ultrasonic components respectively. The control system is used to control the coordinated operation of several nozzles 5, rotating components and ultrasonic components.

[0058] Example 2

[0059] A method for testing the cleanliness of bearings during maintenance, as shown in the attached document. Figure 5 This includes the following steps:

[0060] Step 1. Clean all sampling and testing tools, dry and weigh the filter membrane to obtain m1;

[0061] Step 2. Randomly sample from the several sets of bearings that have already been cleaned;

[0062] Step 3. Weigh the sample obtained in Step 2 to obtain its mass m2, and then disassemble the sample.

[0063] Step 4. Clean the sample disassembled in Step 4 to obtain a cleaning solution;

[0064] The sample cleaning method described in step 4 is as follows:

[0065] Step 401: Place the disassembled bearing samples on the fixing frame 13 respectively. Different models of samples are customized with specific locking blocks 18.

[0066] Step 402: Attach the fixing bracket 13 to the column 12 and close the cover 2;

[0067] Step 403: The control system controls the first motor 1 to rotate, while the nozzle 5 sprays cleaning fluid to rinse the bearing from all directions;

[0068] Step 404: At the same time, the second motor 11 rotates, driving the fixed frame 13 to rotate in the opposite direction, increasing the cleaning force of the cleaning fluid sprayed from the nozzle 5;

[0069] Step 405: When the sprayed cleaning fluid covers the bearing sample located on the fixed frame 13, the control system controls the ultrasonic component to emit ultrasonic vibrations to further clean the bearing sample with ultrasonic waves.

[0070] Step 406: After cleaning one end for a period of time, the controller controls the opening 10 to open, so that the cleaning fluid enters the collection device; repeat step 403 until the set number of times is 3.

[0071] Step 5. Filter the cleaning solution using a filter membrane;

[0072] Step 6. Dry the filtered membrane to obtain a dried filter membrane;

[0073] Step 7. Weigh the dried filter membrane to obtain its weight m3;

[0074] Step 8. Take the substance on the dried filter membrane for analysis.

[0075] In this embodiment, the filter membrane mentioned in step 1 is a 5μm special filter membrane; the filter membrane is dried at 85-95℃ for 50-60 minutes, cooled for 25-35 minutes, and then weighed. The weighing is repeated 3 times and the average value is taken.

[0076] In this embodiment, step 2 involves sampling one set from every n sets of cleaned bearings.

[0077] In this embodiment, during the sample disassembly process in step 3, foreign objects obtained from the disassembly are collected at any time. When the dried filter membrane is weighed at the end, the total weight of the foreign objects is entered into m3.

[0078] In this embodiment, all cleaning fluid should be collected completely during step 4 of the cleaning process.

[0079] In this embodiment, the specific drying steps of step 6 are as follows:

[0080] Step 601: Place the filter membrane and the filtered impurities together into a desiccator;

[0081] Step 602: Place the desiccant in an oven at 85-95℃ and dry for 55-65 minutes;

[0082] Step 603: Remove the dried desiccator and cool it for 25-35 minutes;

[0083] Step 604: Weigh yourself every five minutes;

[0084] Step 605: The weighing error should not exceed 1% each time. If it exceeds 1%, repeat step 602.

[0085] In this embodiment, step 7, weighing, involves combining the dried filter membrane with impurities and the foreign matter collected during the disassembly process in step 3, and weighing them together to obtain a weight m3.

[0086] In this embodiment, step 8, the analysis of the dried filter membrane, specifically involves calculating the mass of impurities per kilogram, W = (m3-m1) / m2.

[0087] Example 3

[0088] A method for testing the cleanliness of bearings during maintenance includes the following steps:

[0089] Step 1. Clean all sampling and testing tools, dry and weigh the filter membrane to obtain m1;

[0090] Step 2. Randomly sample from the several sets of bearings that have already been cleaned;

[0091] Step 3. Weigh the sample obtained in Step 2 to obtain its mass m2, and then disassemble the sample.

[0092] Step 4. Clean the sample disassembled in Step 4 to obtain a cleaning solution;

[0093] Step 401: Place the disassembled bearing samples on the fixing frame 13 respectively. Different models of samples are customized with specific locking blocks 18.

[0094] Step 402: Attach the fixing bracket 13 to the column 12 and close the cover 2;

[0095] Step 403: The control system controls the first motor 1 to rotate, while the nozzle 5 sprays cleaning fluid to rinse the bearing from all directions;

[0096] Step 404: At the same time, the second motor 11 rotates, driving the fixed frame 13 to rotate in the opposite direction, increasing the cleaning force of the cleaning fluid sprayed from the nozzle 5;

[0097] Step 405: When the sprayed cleaning fluid covers the bearing sample located on the fixed frame 13, the control system controls the ultrasonic component to emit ultrasonic vibrations to further clean the bearing sample with ultrasonic waves.

[0098] Step 406: After cleaning one end for a period of time, the controller controls the opening 10 to open, so that the cleaning fluid enters the collection device; repeat step 403 until the set number of times is 3.

[0099] Step 5. Filter the cleaning solution using a filter membrane;

[0100] Step 6. Dry the filtered membrane to obtain a dried filter membrane;

[0101] Step 7. Weigh the dried filter membrane to obtain its weight m3;

[0102] Step 8. Take the substance on the dried filter membrane for analysis.

[0103] In this embodiment, the filter membrane mentioned in step 1 is a 5μm special filter membrane; the filter membrane is dried at 85℃ for 50min, cooled for 25min and then weighed, and the weighing is repeated 3 times and the average value is taken.

[0104] In this embodiment, step 2 involves sampling one set from every n sets of cleaned bearings.

[0105] In this embodiment, during the sample disassembly process in step 3, foreign objects obtained from the disassembly are collected at any time. When the dried filter membrane is weighed at the end, the total weight of the foreign objects is entered into m3.

[0106] In this embodiment, all cleaning fluid should be collected completely during step 4 of the cleaning process.

[0107] In this embodiment, the specific drying steps of step 6 are as follows:

[0108] Step 601: Place the filter membrane and the filtered impurities together into a desiccator;

[0109] Step 602: Place the desiccant in an oven at 85-95℃ and dry for 55 minutes;

[0110] Step 603: Remove the dried desiccator and cool for 25 minutes;

[0111] Step 604: Weigh yourself every five minutes;

[0112] Step 605: The weighing error should not exceed 1% each time. If it exceeds 1%, repeat step 602.

[0113] In this embodiment, step 7, weighing, involves combining the dried filter membrane with impurities and the foreign matter collected during the disassembly process in step 3, and weighing them together to obtain a weight m3.

[0114] In this embodiment, step 8, the analysis of the dried filter membrane, specifically involves calculating the mass of impurities per kilogram, W = (m3-m1) / m2.

[0115] Example 4

[0116] A method for testing the cleanliness of bearings during maintenance includes the following steps:

[0117] Step 1. Clean all sampling and testing tools, dry and weigh the filter membrane to obtain m1;

[0118] Step 2. Randomly sample from the several sets of bearings that have already been cleaned;

[0119] Step 3. Weigh the sample obtained in Step 2 to obtain its mass m2, and then disassemble the sample.

[0120] Step 4. Clean the sample disassembled in Step 4 to obtain a cleaning solution;

[0121] Step 401: Place the disassembled bearing samples on the fixing frame 13 respectively. Different models of samples are customized with specific locking blocks 18.

[0122] Step 402: Attach the fixing bracket 13 to the column 12 and close the cover 2;

[0123] Step 403: The control system controls the first motor 1 to rotate, while the nozzle 5 sprays cleaning fluid to rinse the bearing from all directions;

[0124] Step 404: At the same time, the second motor 11 rotates, driving the fixed frame 13 to rotate in the opposite direction, increasing the cleaning force of the cleaning fluid sprayed from the nozzle 5;

[0125] Step 405: When the sprayed cleaning fluid covers the bearing sample located on the fixed frame 13, the control system controls the ultrasonic component to emit ultrasonic vibrations to further clean the bearing sample with ultrasonic waves.

[0126] Step 406: After cleaning one end for a period of time, the controller controls the opening 10 to open, so that the cleaning fluid enters the collection device; repeat step 403 until the set number of times is 3.

[0127] Step 5. Filter the cleaning solution using a filter membrane;

[0128] Step 6. Dry the filtered membrane to obtain a dried filter membrane;

[0129] Step 7. Weigh the dried filter membrane to obtain its weight m3;

[0130] Step 8. Take the substance on the dried filter membrane for analysis.

[0131] In this embodiment, the filter membrane mentioned in step 1 is a 5μm special filter membrane; the filter membrane is dried at 85-95℃ for 50 minutes, cooled for 25 minutes and then weighed, and the weighing is repeated 3 times and the average value is taken.

[0132] In this embodiment, step 2 involves sampling one set from every n sets of cleaned bearings.

[0133] In this embodiment, during the sample disassembly process in step 3, foreign objects obtained from the disassembly are collected at any time. When the dried filter membrane is weighed at the end, the total weight of the foreign objects is entered into m3.

[0134] In this embodiment, all cleaning fluid should be collected completely during step 4 of the cleaning process.

[0135] In this embodiment, the specific drying steps of step 6 are as follows:

[0136] Step 601: Place the filter membrane and the filtered impurities together into a desiccator;

[0137] Step 602: Place the desiccant in an oven at 85-95℃ and dry for 55 minutes;

[0138] Step 603: Remove the dried desiccator and cool for 25 minutes;

[0139] Step 604: Weigh yourself every five minutes;

[0140] Step 605: The weighing error should not exceed 1% each time. If it exceeds 1%, repeat step 602.

[0141] In this embodiment, step 7, weighing, involves combining the dried filter membrane with impurities and the foreign matter collected during the disassembly process in step 3, and weighing them together to obtain a weight m3.

[0142] In this embodiment, step 8, the analysis of the dried filter membrane, specifically involves calculating the mass of impurities per kilogram, W = (m3-m1) / m2.

[0143] It should be noted that:

[0144] The above description of the disclosed embodiments enables those skilled in the art to make or use the invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the invention. Therefore, the invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A bearing cleaning device, characterized in that: The enclosure includes a housing (6), the upper part of which is hinged to a cover (2) via a pivot (3), the lower part of which is provided with several nozzles (5) at intervals, the interior of which is provided with a rotating assembly, the upper part of which is fitted with a bearing placement assembly; the inner wall of which is provided with an ultrasonic component, the height of which is lower than the height of the bearing placement assembly. The bearing placement assembly includes a fixing frame (13), with handles (14) on both sides of the fixing frame (13), and several locking blocks (18) for locking the disassembled bearings are provided on the fixing frame (13) via several connecting rods (17). The fixing frame (13) is provided with sliders (15) on both sides respectively, and the inner wall of the box (6) is provided with an annular groove (16). The sliders (15) and the groove (16) can cooperate with each other. The bottom of the box (6) is composed of four inclined plates (8), and every two inclined plates (8) form a V-shaped inclined plate (8) group. The two V-shaped inclined plate (8) groups are located on both sides of the rotating assembly. The bottom of the two V-shaped inclined plate (8) groups is provided with an opening (10), and the lower part of the box (6) is provided with several support legs (9) below the opening (10).

2. The bearing cleaning device according to claim 1, characterized in that: The cover (2) is provided with a first motor (1) above it and a fixing plate (4) is provided at the bottom of the cover (2). The upper part of the fixing plate (4) is connected to the output shaft of the first motor (1). Several nozzles (5) are spaced apart at the bottom of the fixing plate (4) and are respectively connected to an external cleaning fluid pipeline.

3. The bearing cleaning device according to claim 1, characterized in that: The rotating assembly includes a second motor (11), which is connected to the bearing placement assembly above a column (12).

4. The bearing cleaning device according to claim 1, characterized in that: The ultrasonic component includes an ultrasonic generator and several ultrasonic transducers (7). The several ultrasonic transducers (7) are disposed on the side wall of the housing (6), and the ultrasonic generator is disposed on the outer wall of the housing (6). The several ultrasonic transducers (7) are electrically connected to the ultrasonic generator respectively.

5. The bearing cleaning device according to claim 1, characterized in that: A control system is also provided on the outer wall of the housing (6). The control system is electrically connected to several nozzles (5), rotating components and ultrasonic components respectively. The control system is used to control the coordinated operation of several nozzles (5), rotating components and ultrasonic components.

6. A method for detecting the cleanliness of bearings during maintenance, characterized in that, Includes the following steps: Step 1. Clean all sampling and testing tools, dry and weigh the filter membrane to obtain m1; Step 2. Randomly sample from the several sets of bearings that have already been cleaned; Step 3. Weigh the sample obtained in Step 2 to obtain its mass m2, and then disassemble the sample. Step 4. Clean the sample disassembled in step 3 using any one of the bearing cleaning devices according to claims 1 to 5 to obtain a cleaning solution; Step 5. Filter the cleaning solution using a filter membrane; Step 6. Dry the filtered membrane to obtain a dried filter membrane; Step 7. Weigh the dried filter membrane to obtain its weight m3; Step 8. Take the substance on the dried filter membrane for analysis.

7. The method for detecting the cleanliness of bearings according to claim 6, characterized in that: Step 4 also includes: Step 401: The disassembled bearing samples are clipped and placed on the fixed frame (13). Different models of samples are customized with specific clips (18). Step 402: Attach the fixing bracket (13) to the column (12) and close the cover (2); Step 403: The control system controls the first motor (1) to rotate, and at the same time the nozzle (5) sprays cleaning fluid to rinse the bearing in all directions; Step 404: At the same time, the second motor (11) rotates, driving the fixed frame (13) to rotate in the opposite direction, increasing the cleaning force of the cleaning fluid sprayed by the nozzle (5); Step 405: When the sprayed cleaning fluid covers the bearing sample located on the fixed frame (13), the control system controls the ultrasonic component to emit ultrasonic vibration to further clean the bearing sample with ultrasonic waves. Step 406: After cleaning for a period of time, the controller controls the opening (10) to open, so that the cleaning fluid enters the collection device; repeat step 403 until the set number of times.

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