A bearing detection equipment for bearing production and processing

Abstract

The application discloses a bearing detection equipment for bearing production and processing, and relates to the technical field of sealed bearing detection, which comprises a detection assembly and a positioning assembly.The detection assembly comprises a rotating plate and a mounting port.The positioning assembly comprises an air pump, a support, a center rod, an air bag I, a fixed bag I, an air bag II and a fixed bag II.The mounting port is arranged on the rotating plate, and the air pump is fixed on one side of the rotating plate.The support is cross-shaped, the support is fixed in the mounting port, and the center rod is fixed on the support.The air bag I is fixed in the mounting port, and the fixed bag I is fixed in the inner ring of the air bag I.The air pump can inflate the air bag I and the air bag II, and push the annular fixed bag I and the fixed bag II to automatically adhere to the outer ring and the inner ring of the sealed bearing, so that the center is quickly positioned.Subsequently, the electro-rheological fluid in the fixed bag I and the fixed bag II is electrified to become hard, and hard contact fixation is formed, so that the sealed bearing is prevented from being displaced during the detection process, the detection precision is ensured, and the sealing effect is improved.

Description

Technical Field

[0001] This invention relates to the field of sealed bearing testing technology, and in particular to a bearing testing device used in bearing production and processing. Background Technology

[0002] A bearing is a fundamental mechanical component used to support rotating mechanical parts, reduce frictional resistance between moving parts, and ensure rotational accuracy. It converts the sliding friction between the shaft and bearing housing into rolling friction or fluid friction through rolling elements or a lubricating film, thus transmitting loads while making the shaft system run more smoothly and efficiently.

[0003] Sealed bearings play a crucial role in mechanical equipment by supporting rotating bodies, reducing the coefficient of friction, and ensuring rotational accuracy. Their sealing performance directly affects the bearing's service life and operational stability. After the bearings are manufactured and manufactured, a sealing performance test is an essential step in the final quality inspection process. This test aims to eliminate defective bearings with improperly assembled seals, micro-gaps, or damage.

[0004] Currently, the commonly used methods for testing sealed bearings in the industry mostly employ static water testing or air pressure difference testing. In actual production, operators typically place the sealed bearings to be tested one by one on a fixture, ensuring that their lower sides are in contact with a colored liquid. Then, a vacuum is drawn through a cover at the top, and the presence of a leak is determined by observing whether the absorbent material is stained.

[0005] However, existing testing equipment of this kind still has obvious shortcomings in practical applications: On the one hand, traditional bearing positioning mostly uses rigid clamps or bolt clamping methods, which are not very adaptable to bearings of different diameters and specifications. The clamping process is cumbersome and can easily cause additional compression to the sealing ring, affecting the authenticity of the test. The recording of test results mostly relies on manual visual observation, lacking automated image acquisition and retention methods. Moreover, after each test, the machine needs to be stopped to replace the absorbent material, resulting in low overall testing efficiency and difficulty in meeting the needs of large-scale continuous production. Summary of the Invention

[0006] This application provides a bearing testing device for bearing production and processing, solving the problems of existing technologies where traditional bearing positioning relies on rigid clamps or bolt tightening, which has poor adaptability to bearings of different diameters and specifications, is cumbersome in clamping, and can easily cause additional compression to the sealing ring, affecting the accuracy of the test results; the recording of test results mostly depends on manual visual observation, lacking automated image acquisition and retention methods, and requires stopping the machine to replace the absorbent material after each test, resulting in low overall testing efficiency and difficulty in meeting the needs of large-scale continuous production. The device achieves automatic inflation of air bladders one and two by an air pump, pushing the annular fixed bladders one and two. The outer and inner rings of the sealed bearing are fitted together to achieve rapid center positioning. Subsequently, the electrorheological fluid inside the first and second fixing bladders is energized and hardened to form a rigid contact fixation, completely preventing the sealed bearing from shifting during the testing process, ensuring testing accuracy, and improving the sealing effect. The second motor can drive the replacement plate to rotate, and the white absorbent paper after testing will be photographed and recorded by the monitoring head, which is convenient for result retention and traceability. At the same time, the white absorbent paper on the other side can be replaced during testing, reducing downtime for material change and further improving turnover efficiency. The expansion of the first and second air bladders can adapt to the positioning of sealed bearings of different diameters, and the cross-shaped bracket can also support sealed bearings of different diameters.

[0007] This application provides a bearing testing device for bearing production and processing, including a testing component and a positioning component; the testing component includes a rotating plate and a mounting port; the positioning component includes an air pump, a bracket, a center rod, an air bladder one, a fixed bladder one, an air bladder two, and a fixed bladder two; the rotating plate has a mounting port, the air pump is fixed on one side of the rotating plate, the bracket is cross-shaped and fixed inside the mounting port, the center rod is fixed on the bracket, the air bladder one is fixed inside the mounting port, and the fixed bladder one is fixed inside the inner ring of the air bladder one;

[0008] Airbag 2 is fixed outside the center rod, and fixed bag 2 is fixed to the outer ring of airbag 2. The output end of the air pump is connected to airbag 1 and airbag 2 respectively. Fixed bag 1 and fixed bag 2 are filled with electrorheological fluid. Fixed bag 1 and fixed bag 2 respectively abut against the outer ring and inner ring of the sealed bearing to be tested.

[0009] As an improvement, both the mounting port and the central rod are cylindrical. Airbag 1, Fixed Airbag 1, Airbag 2, and Fixed Airbag 2 are all annular. The axes of the mounting port, the central rod, Airbag 1, Fixed Airbag 1, Airbag 2, and Fixed Airbag 2 are on the same straight line. The upper and lower ends of Fixed Airbag 1 are fixed inside the mounting port, and the upper and lower ends of Fixed Airbag 1 are located on the upper and lower sides of Airbag 1, respectively. The upper and lower ends of Fixed Airbag 2 are fixed to the outer wall of the central rod, and the upper and lower ends of Fixed Airbag 2 are located on the upper and lower sides of Airbag 2, respectively. Two electrode plates are installed inside Fixed Airbag 1, and the electrode plates are in contact with the electrorheological fluid filled inside Fixed Airbag 1. The electrode plates are connected to an external power source. Two electrode plates are installed inside Fixed Airbag 2, and the electrode plates are in contact with the electrorheological fluid filled inside Fixed Airbag 2. The electrode plates are connected to an external power source.

[0010] The sealed bearing to be tested is placed on the bracket and between the first and second fixed bladders. After the sealed bearing to be tested is placed on the bracket, the first and second fixed bladders are inflated by the air pump, causing the first and second fixed bladders to contact the outer and inner rings of the sealed bearing to be tested. After the sealed bearing to be tested is placed on the bracket, the upper side of the sealed bearing to be tested is lower than the upper side of the rotating plate.

[0011] As an improvement, there are multiple mounting ports, which are evenly spaced along the length of the rotating plate. The number of positioning components is the same as the number of mounting ports, and they correspond one-to-one.

[0012] As an improvement, the positioning component also includes air supply line one, air supply line two, and air supply line three. Air supply line three is opened inside the rotating plate, air supply line one is opened inside the bracket, and air supply line two is opened inside the center rod. The two ends of air supply line three are connected to the output end of the air pump and air bag one, respectively. The two ends of air supply line one are connected to air supply line three and air supply line two, respectively. The end of air supply line two away from air supply line one is connected to air bag two.

[0013] As an improvement, the detection assembly also includes a water tank, a flipping component, a vertical plate, a mounting plate, and a monitoring head. The flipping component includes a telescopic rod one, a motor two, and a replacement plate. The water tank stores red ink, and the rotating plate is set inside the water tank. After the sealed bearing to be tested is placed on the bracket, the lower side of the sealed bearing to be tested can contact the red ink. There are two telescopic rods one and two motors two, and they correspond one-to-one. The output ends of the two motors two are symmetrically fixed at both ends of the replacement plate. The output end of the telescopic rod one is fixed to the lower side of the motor two, and the lower end of the telescopic rod is fixed to the upper side of the water tank. The vertical plate is fixed to the upper side of the water tank, and the mounting plate is fixed to one side of the vertical plate. The mounting plate is located above the water tank, and the monitoring head is fixed to the lower side of the mounting plate. The number of monitoring heads is the same as the number of positioning components, and they correspond one-to-one.

[0014] As an improvement, it also includes an adsorption component, the number of which is twice the number of the positioning components. Multiple adsorption components are evenly spaced and fixed on the upper and lower sides of the replacement plate. The number of adsorption components on the upper and lower sides of the replacement plate is the same. The adsorption components on one side of the replacement plate correspond one-to-one with multiple positioning components. The adsorption component includes a pump body, a cover, a disassembly ring and white absorbent paper.

[0015] The pump body is fixed on the replacement plate, the pump body output end is fixed with a cover, the disassembly ring is threaded on the end of the cover away from the pump body, white absorbent paper is fixed on the inner ring of the disassembly ring, the end of the disassembly ring away from the cover is made of rubber, when the telescopic rod moves the disassembly ring to lower the height, the disassembly ring can completely cover the sealing installation port.

[0016] As an improvement, a lifting assembly is also included. The lifting assembly includes an electric slide, a lifting plate, and a connecting piece. The electric slide is fixed to the vertical plate and the inner wall of the water tank. The lower end of the electric slide is located in the red ink stored in the water tank. There are multiple electric slides, which are evenly spaced. The lifting plate is fixed on the slider of the electric slide. The number of connecting pieces is the same as the number of positioning components, and they correspond one-to-one.

[0017] The connecting component includes a connecting hose, a first fixing tube, a fixing ring, a connecting rod, and a second fixing tube. The first fixing tube and the second fixing tube are respectively fixed to both ends of the connecting hose. The end of the first fixing tube away from the connecting hose is fixed to the lower side of the rotating plate. The first fixing tube is connected to the installation port. The fixing ring is annular. The end of the second fixing tube away from the connecting hose is fixed to the inner ring of the fixing ring. The two ends of the connecting rod are respectively fixed to the outer ring of the fixing ring and the first lifting plate. The detection component also includes a first motor. The two ends of the rotating plate are rotatably set inside the water storage tank in the length direction. The first motor is fixed to one side of the water storage tank. The output end of the first motor is fixed to the rotating shaft that rotatably connects the rotating plate and the water storage tank. The first motor is used to drive the rotating plate to rotate. When the first motor drives the rotating plate to rotate, the rotating plate does not come into contact with the red ink stored in the water storage tank.

[0018] As an improvement, the connecting hose, fixed tube one, and fixed tube two are used to temporarily store red ink. The electric slide one can drive the fixed tube two to adjust its height, thereby adjusting the liquid level in the connecting hose.

[0019] As an improvement, a rotating assembly is also included. The rotating assembly includes an electric slide table 2, a lifting plate 2, a telescopic rod 2, a motor 3, and a stop post. In the initial state, the electric slide table 2 is fixed on the side of the rotating plate near the upright plate. There are multiple electric slide tables 2, which are evenly spaced. The lifting plate 2 is fixed on the slider of the electric slide table 2. The number of telescopic rod 2, motor 3, and stop post are consistent with the positioning assembly, and they correspond one-to-one. The telescopic rod 2 is fixed on one side of the lifting plate 2. The motor 3 is fixed at the output end of the telescopic rod 2. The stop post is fixed at the output end of the motor 3. The outer ring of the stop post is made of rubber.

[0020] As an improvement, in the initial state, the telescopic rod 2, motor 3, and contact column are all located on the side of the rotating plate. The telescopic rod 2's extension direction intersects the axis of the mounting port, the motor 3's rotation axis intersects the axis of the mounting port, and the contact column is cylindrical. After the extension and retraction of the telescopic rod 2 and the height adjustment of the electric slide 2, the outer ring of the contact column can contact the inner or outer ring of the sealed bearing to be tested.

[0021] One or more technical solutions provided in the embodiments of this application have at least the following technical effects or advantages:

[0022] Firstly, the air pump inflates airbags one and two, pushing the annular fixing bladders one and two to automatically fit against the outer and inner rings of the sealed bearing, achieving rapid center positioning. Subsequently, the electrorheological fluid inside fixing bladders one and two hardens with electricity, forming a rigid contact fixation, completely preventing displacement of the sealed bearing during testing, ensuring testing accuracy, and improving the sealing effect. Motor two can drive the replacement plate to rotate, and the white absorbent paper after testing will be photographed and recorded by the monitoring head, facilitating result retention and traceability. At the same time, the white absorbent paper on the other side can be replaced during testing, reducing downtime for material change and further improving turnover efficiency. The expansion of airbags one and two can adapt to the positioning of sealed bearings of different diameters, and the cross-shaped bracket can also support sealed bearings of different diameters.

[0023] Secondly, the electric slide of the lifting assembly drives the fixed tube to rise and fall, which can adjust the level of red ink in the connecting part, avoiding splashing when placing the sealed bearing and affecting the accuracy of the test. Vacuuming is used to observe whether the absorbent paper is stained. If it is not stained, the motor drives the rotating plate to rotate 180 degrees, so that the original upper side is facing down, and the test is repeated, solving the problem of missed detection on one side. It can not only identify non-conformities, but also locate the leakage location. The dual judgment criteria of absorbent paper staining and liquid surface bubble observation avoid the risk of misjudgment by a single detection method and ensure the accuracy of the sealing results. It is especially suitable for the testing of precision bearings with high sealing requirements. It can not only determine whether there is a leak, but also distinguish between upper leakage, lower leakage and double-sided leakage, accurately locate the leakage location, and significantly shorten the root cause investigation time of quality abnormalities. During the 180° rotation of the rotating plate, the inner ring, outer ring and sealing ring of the sealed bearing are subjected to a slight acceleration disturbance. If the assembly itself is relatively loose, ink leakage and bubbles may occur at the moment of reversal, which tests the vibration resistance and posture change performance of the sealing ring.

[0024] Third, the rotating assembly adjusts the position of the contact column through the telescopic rod two and the electric slide two, allowing the contact column to fit against the inner or outer ring of the sealed bearing. Then, the motor three drives the rotation to simulate the force and motion state of the sealed bearing during operation. This can detect dynamic sealing defects that cannot be exposed in a static state, greatly improving the authenticity of the test and enabling a more comprehensive evaluation of the quality of the sealed bearing. This ensures that the sealed bearing will not cause failure due to dynamic sealing failure in actual operation. Attached Figure Description

[0025] Figure 1 This invention relates to a three-dimensional bearing testing device for bearing production and processing. Figure 1 ;

[0026] Figure 2 This invention relates to a three-dimensional bearing testing device for bearing production and processing. Figure 2 ;

[0027] Figure 3This is a cross-sectional view of a bearing testing device for bearing production and processing according to the present invention;

[0028] Figure 4 This is a schematic diagram of the fixed tube of a bearing testing device for bearing production and processing according to the present invention, showing the height of the tube in a raised state.

[0029] Figure 5 This is a schematic diagram of the rotating component structure of a bearing testing device for bearing production and processing according to the present invention;

[0030] Figure 6 This is a schematic diagram of the adsorption component structure of a bearing testing device for bearing production and processing according to the present invention;

[0031] Figure 7 This is a schematic diagram of the rotating plate in the flipping state of a bearing testing device for bearing production and processing according to the present invention;

[0032] Figure 8 This is a cross-sectional view of the positioning component structure of a bearing testing equipment for bearing production and processing according to the present invention;

[0033] Figure 9 This invention relates to a bearing testing device for bearing manufacturing and processing. Figure 8 Enlarged schematic diagram of the structure at point A inside;

[0034] Figure 10 This is a schematic diagram of the bracket installation for a bearing testing equipment used in bearing production and processing according to the present invention;

[0035] Figure 11 This is a schematic diagram of the bearing to be tested installed in a bearing testing device for bearing production and processing according to the present invention.

[0036] In the diagram: 100, Detection component; 110, Water storage tank; 120, Rotating plate; 121, Mounting port; 130, Motor 1; 140, Flipping component; 141, Telescopic rod 1; 142, Motor 2; 143, Replacement plate; 150, Vertical plate; 160, Mounting plate; 170, Monitoring head; 200, Adsorption component; 210, Pump body; 220, Cover; 230, Disassembly ring; 240, White absorbent paper; 300, Positioning component; 310, Air pump; 320, Bracket; 321, Air supply line 1; 330, Center rod; 33 1. Gas supply line 2; 340. Airbag 1; 350. Fixed airbag 1; 360. Airbag 2; 370. Fixed airbag 2; 380. Gas supply line 3; 400. Lifting assembly; 410. Electric slide 1; 420. Lifting plate 1; 430. Connecting component; 431. Connecting hose; 432. Fixed pipe 1; 433. Fixed ring; 434. Connecting rod; 435. Fixed pipe 2; 500. Rotating assembly; 510. Electric slide 2; 520. Lifting plate 2; 530. Telescopic rod 2; 540. Motor 3; 550. Contact column. Detailed Implementation

[0037] To facilitate understanding of the present invention, a more complete description of this application will be given below with reference to the accompanying drawings, which illustrate preferred embodiments of the invention. However, the invention can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to enable a more thorough and complete understanding of the disclosure of the present invention.

[0038] It should be noted that the terms "vertical," "horizontal," "up," "down," "left," "right," and similar expressions used in this article are for illustrative purposes only and do not represent the only possible implementation.

[0039] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains; the terminology used herein in the description of the invention is for the purpose of describing particular embodiments only and is not intended to limit the invention; the term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0040] Example 1: As Figures 1-11 As shown, this application discloses a bearing testing device for bearing production and processing, comprising a testing component 100, an adsorption component 200, and a positioning component 300. The testing component 100 includes a water storage tank 110, a rotating plate 120, a mounting port 121, a flipping component 140, a vertical plate 150, a mounting plate 160, and a monitoring head 170. The positioning component 300 includes an air pump 310, a bracket 320, an air supply pipeline 321, a center rod 330, an air supply pipeline 331, an air bladder 340, a fixing bladder 350, an air bladder 360, a fixing bladder 370, and an air supply pipeline 380. The rotating plate 120 has mounting ports 121, and the air pump 310 is fixed to one side of the rotating plate 120. There are multiple mounting ports 121, which are evenly spaced along the length of the rotating plate 120. The number of positioning components 300 is the same as the number of mounting ports 121, and they correspond one-to-one.

[0041] Specifically, the positioning component 300 is used to position the sealed bearing to be inspected, and there are multiple positioning components 300. In use, multiple sealed bearings can be inspected at the same time, improving inspection efficiency.

[0042] Both the mounting port 121 and the central rod 330 are cylindrical; airbag one 340, fixing airbag one 350, airbag two 360, and fixing airbag two 370 are all annular; the axes of the six components—mounting port 121, central rod 330, airbag one 340, fixing airbag one 350, airbag two 360, and fixing airbag two 370—are on the same straight line; the bracket 320 is cross-shaped, fixed inside the mounting port 121, and the central rod 330 is fixed on the bracket 320; airbag one 340 is fixed inside the mounting port 121, and fixing airbag one 350 is fixed inside the inner ring of airbag one 340; airbag two 360 is fixed outside the central rod 330, and fixing airbag two 370 is fixed outside the outer ring of airbag two 360; the upper and lower ends of fixing airbag one 350 are respectively fixed inside the mounting port 121, and fixing airbag two 370... The upper and lower ends of airbag 350 are located on the upper and lower sides of airbag 340, respectively; the upper and lower ends of fixed airbag 370 are fixed to the outer wall of central rod 330, and the upper and lower ends of fixed airbag 370 are located on the upper and lower sides of airbag 360, respectively; the output end of air pump 310 is connected to airbag 340 and airbag 360, respectively; air supply line 380 is opened in the rotating plate 120; air supply line 321 is opened in the bracket 320 and air supply line 331 is opened in the central rod 330; the two ends of air supply line 380 are connected to the output end of air pump 310 and airbag 340, respectively; the two ends of air supply line 321 are connected to air supply line 380 and air supply line 331, respectively, and the end of air supply line 331 away from air supply line 321 is connected to airbag 360. Both the first and second fixed bladders (350 and 370) are filled with electrorheological fluid. The first and second fixed bladders (350 and 370) respectively contact the outer and inner rings of the sealed bearing to be tested. Two electrode plates are installed inside the first fixed bladder (350), contacting the electrorheological fluid within it, and are connected to an external power source. Similarly, two electrode plates are installed inside the second fixed bladder (370), contacting the electrorheological fluid within it, and are also connected to an external power source. Both the first and second fixed bladders (350 and 370) are made of silicone rubber. The two electrode plates inside each fixed bladder (350 and 370) are spaced apart, with the spacing controlled within the range of 2mm-5mm to ensure a uniform electric field distribution.

[0043] The electrorheological fluid is composed of titanium oxide composite particles with a dielectric constant greater than 50 dispersed in insulating silicone oil. Upon application of an electric field, its rheological properties change significantly; it is liquid at zero electric field with a viscosity below 0.2 Pa·s; after applying an electric field, it rapidly solidifies within a millisecond (<10 ms) response time. Under an electric field strength of 3-5 kV / mm, the shear yield strength after solidification can reach 5 kPa-10 kPa; this is existing technology and will not be elaborated upon here.

[0044] The sealed bearing to be tested is placed on the bracket 320 and between the first fixed bladder 350 and the second fixed bladder 370. After the sealed bearing to be tested is placed on the bracket 320, the first air bladder 340 and the second air bladder 360 are inflated by the air pump 310, so that the first fixed bladder 350 and the second fixed bladder 370 abut against the outer ring and inner ring of the sealed bearing to be tested. After the sealed bearing to be tested is placed on the bracket 320, the upper side of the sealed bearing to be tested is lower than the upper side of the rotating plate 120.

[0045] Specifically, during use, the sealed bearing to be tested is first placed on the bracket 320, with the inner ring of the sealed bearing fitted onto the center rod 330. The air pump 310 inflates the first airbag 340 and the second airbag 360, causing them to expand. The inflated airbags 340 and 360 quickly center the sealed bearing to be tested, performing positioning and sealing operations. After positioning, the electrorheological fluid inside the first fixing bladder 350 and the second fixing bladder 370 hardens, thus making hard contact with the sealed bearing to be tested and fixing its position.

[0046] The flipping component 140 includes a telescopic rod 141, a motor 142, and a replacement plate 143. Red ink is stored inside the water tank 110. The rotating plate 120 is located inside the water tank 110. After the sealed bearing to be tested is placed on the bracket 320, its lower surface can contact the red ink. There are two telescopic rods 141 and two motors 142, each corresponding to one another. The output ends of the two motors 142 are symmetrically fixed at both ends of the replacement plate 143. The output end of the telescopic rod 141 is fixed to the lower surface of the motor 142, and the lower end of the telescopic rod 141 is fixed to the upper surface of the water tank 110. The upright plate 150 is fixed to the upper surface of the water tank 110, and the mounting plate 160 is fixed to one side of the upright plate 150, located above the water tank 110. The monitoring head 170 is fixed to the lower surface of the mounting plate 160. The number of monitoring heads 170 is the same as the number of positioning components 300, and they correspond one-to-one. The number of adsorption components 200 is twice the number of positioning components 300. Multiple adsorption components 200 are evenly spaced and fixed on the upper and lower sides of the replacement plate 143. The number of adsorption components 200 on the upper and lower sides of the replacement plate 143 is the same. Each adsorption component 200 on one side of the replacement plate 143 corresponds to one of the multiple positioning components 300.

[0047] The adsorption assembly 200 includes a pump body 210, a cover 220, a disassembly ring 230, and white absorbent paper 240. The pump body 210 is fixed on the replacement plate 143, and the output end of the pump body 210 is fixed to the cover 220. The disassembly ring 230 is threadedly fixed to the end of the cover 220 away from the pump body 210, and the white absorbent paper 240 is fixed to the inner ring of the disassembly ring 230. The white absorbent paper 240 is made of breathable material. The end of the disassembly ring 230 away from the cover 220 is made of rubber. When the telescopic rod 141 drives the disassembly ring 230 to descend, the disassembly ring 230 can completely cover the sealing installation port 121.

[0048] Specifically, after the sealed bearing to be tested is placed and positioned, the height of the telescopic rod 141 is lowered. During the descent, the sealed bearing to be tested is completely covered by the disassembly ring 230 above, which covers the sealing installation port 121. The end of the disassembly ring 230 away from the cover 220 is made of rubber to prevent air leakage during vacuuming. When the disassembly ring 230 completely covers and seals the installation port 121, the pump body 210 is activated to perform a vacuuming operation inside the disassembly ring 230 and the cover 220. Since the lower side of the sealed bearing to be tested can come into contact with the red ink after it is placed on the bracket 320, if the sealed bearing to be tested leaks air during vacuuming, the red ink will be sucked up and enter the interior of the sealed bearing. As the suction force increases, the white absorbent paper 240 will be stained. If the white absorbent paper 240 is not stained after the testing process, it indicates that the sealed bearing is a qualified product. When the telescopic rod 141 is lowered to test a set of sealed bearings, the disassembly ring 230 inside the adsorption assembly 200 located above the replacement plate 143 can be disassembled and replaced, thereby improving the efficiency of the test.

[0049] After completing a set of sealed bearing tests, the telescopic rod 141 is raised, and the replacement plate 143 is rotated by the motor 142. After rotation, the white absorbent paper 240 after testing will be captured by the monitoring head 170, which can be used to record and observe the test results. After a set of sealed bearing tests is completed, the electrorheological fluid in the fixed bladder 350 and fixed bladder 370 is de-energized, and the airbags 340 and 360 retract, making it easy to remove the sealed bearing after testing and replace it with a new sealed bearing to be tested. This testing operation is repeated.

[0050] The electrorheological fluid filled in telescopic rod 141, fixed bladder 1350, and fixed bladder 2370 are all existing technologies and will not be described in detail here.

[0051] The technical solutions described in the embodiments of this application above have at least the following technical effects or advantages:

[0052] Air pump 310 inflates airbags 340 and 360, pushing annular fixing bags 350 and 370 to automatically fit against the outer and inner rings of the sealed bearing, achieving rapid center positioning. Subsequently, the electrorheological fluid inside fixing bags 350 and 370 hardens with electricity, forming a rigid contact fixation, completely preventing displacement of the sealed bearing during testing, ensuring testing accuracy, and improving the sealing effect. Motor 142 can drive the replacement plate 143 to rotate, and the white absorbent paper 240 after testing will be photographed and recorded by the monitoring head 170, facilitating result retention and traceability. At the same time, the white absorbent paper 240 on the other side can be replaced during testing, reducing downtime for material change and further improving turnover efficiency. The expansion of airbags 340 and 360 can adapt to the positioning of sealed bearings of different diameters, and the cross-shaped bracket 320 can also support sealed bearings of different diameters.

[0053] Example 2: In the above solution, the sealing bearing is detected by the detection component 100, the adsorption component 200, and the positioning component 300. However, the device can only detect one side of the sealing bearing. For example, if the top of the sealing bearing is not sealed but the bottom is sealed after the sealing bearing is placed, it cannot be detected; if the top of the sealing bearing is sealed but the bottom is not, it also cannot be detected. Furthermore, if the sealing bearing collides with the liquid surface in the water storage tank 110 during placement, it will cause liquid splashing, affecting the accuracy of the detection. Therefore, the solution of Example 1 is improved, such as... Figures 3-4 , Figure 7 As shown:

[0054] It also includes a lifting assembly 400, which includes an electric slide 410, a lifting plate 420, and a connecting member 430.

[0055] Electric slide 410 is fixed to the inner wall of the upright plate 150 and the water storage tank 110. The lower end of electric slide 410 is located in the red ink stored in the water storage tank 110. There are multiple electric slides 410, which are evenly spaced. Lifting plate 420 is fixed on the slider of electric slide 410. Specifically, electric slide 410 is used to drive lifting plate 420 to perform up and down lifting operations.

[0056] The number of connecting parts 430 is the same as the number of positioning components 300, and they correspond one-to-one. The connecting part 430 includes a connecting hose 431, a first fixing tube 432, a fixing ring 433, a connecting rod 434, and a second fixing tube 435. The first fixing tube 432 and the second fixing tube 435 are respectively fixed to both ends of the connecting hose 431. The end of the first fixing tube 432 away from the connecting hose 431 is fixed to the lower side of the rotating plate 120, and the first fixing tube 432 is connected to the mounting port 121. The fixing ring 433 is annular, and the end of the second fixing tube 435 away from the connecting hose 431 is fixed to the inner ring of the fixing ring 433. The two ends of the connecting rod 434 are respectively fixed to the outer ring of the fixing ring 433 and the lifting plate 420.

[0057] The detection assembly 100 also includes a motor 130; the two ends of the rotating plate 120 are rotatably disposed inside the water storage tank 110 along its length, the motor 130 is fixed to one side of the water storage tank 110, and the output end of the motor 130 is fixed to the rotating shaft on which the rotating plate 120 and the water storage tank 110 are rotatably connected; the motor 130 is used to drive the rotating plate 120 to rotate; when the motor 130 drives the rotating plate 120 to rotate, the rotating plate 120 does not come into contact with the red ink stored in the water storage tank 110. The connecting hose 431, the fixed tube 432, and the fixed tube 435 are used to temporarily store the red ink; the electric slide 410 can drive the fixed tube 435 to adjust its height, thereby adjusting the liquid level in the connecting hose 431.

[0058] Specifically, during use, the electric slide 410 drives the lifting plate 420 to rise and fall, thereby continuously raising the fixed tube 435. The connecting part 430 has a U-shaped tube structure, which reduces the internal liquid level when the fixed tube 435 is raised and lowered, preventing splashing when placing the sealed bearing and affecting the accuracy of the test. Before testing the sealed bearing, the fixed tube 435 is lowered, allowing a certain amount of red ink to be stored in the connecting part 430. During the test, the fixed tube 435 is raised, allowing the red ink inside to contact the lower side of the sealed bearing. Then, the telescopic rod 141 lowers the adsorption assembly 200, and the disassembly ring 230 abuts against the rotating plate 120. The negative pressure of the pump body 210 adsorbs the ink. If a red mark appears on the white absorbent paper 240, it indicates that the sealed bearing is a defective product, and the observation and recording are done through the monitoring head 170.

[0059] If no red mark appears on the white absorbent paper 240, there are three possibilities: the first is that the top of the sealed bearing is not sealed, but the bottom is sealed; the second is that the top of the sealed bearing is sealed, but the bottom is not sealed; the third is that both the top and bottom are sealed, in which case it is a qualified product.

[0060] A second inspection of the sealed bearing is then required. This is done by raising the height of the fixed tube 435, and then using motor 130 to rotate the rotating plate 120 180 degrees. Figure 7 As shown; an inspection is performed on the lower side of the sealed bearing. If bubbles are continuously generated on the water surface of the fixed pipe 435 after the rotating plate 120 is rotated 180 degrees, it indicates that the upper part of the sealed bearing is sealed but the lower part is not sealed in the initial state, and it is a defective product; if no bubbles are generated on the water surface of the fixed pipe 435, a third inspection is performed.

[0061] The third testing process is as follows: After the rotating plate 120 and the connecting piece 430 are both reset, the sealed bearing is rotated 180 degrees individually. Then, by raising the height of the fixed tube 435, the motor 130 drives the rotating plate 120 to rotate 180 degrees. Figure 7 As shown, the test is performed again. If bubbles continue to be generated on the water surface of the second fixed pipe 435, it indicates that the upper part of the sealed bearing is not sealed and the lower part is sealed in the initial state, which is a defective product. If no bubbles are generated on the water surface of the second fixed pipe 435, it is a qualified product.

[0062] During the testing process, the monitoring head 170 is used to check whether air bubbles are generated inside the fixed tube 435.

[0063] The electric slide table 410 has a waterproof structure, which is existing technology and will not be described in detail here.

[0064] If, after the rotating plate 120 is flipped, the leakage bubbles on the surface are uniform and fine bubbles with a diameter of <1mm, and they overflow intermittently or continuously, then the sealed bearing is judged to be a leaking bearing.

[0065] The technical solutions described in the embodiments of this application above have at least the following technical effects or advantages:

[0066] The electric slide 410 of the lifting assembly 400 drives the fixed tube 435 to rise and fall, which can adjust the level of red ink in the connecting piece 430. This can prevent splashing when placing the sealed bearing, thus avoiding affecting the accuracy of the test. Vacuuming is performed to observe whether the absorbent paper is stained. If it is not stained, the rotating plate 120 is rotated 180 degrees by the motor 130, so that the original upper side is facing down, and the test is repeated to solve the problem of missed detection on one side. It can not only identify non-conformities, but also locate the leakage location. The dual judgment criteria of absorbent paper staining and liquid surface bubble observation avoid the risk of misjudgment by a single detection method and ensure the accuracy of the sealing results. It is especially suitable for the testing of precision bearings with high sealing requirements. It can not only determine whether there is a leak, but also distinguish between upper leakage, lower leakage and double-sided leakage, accurately locate the leakage location, and significantly shorten the root cause investigation time of quality abnormalities. During the process of rotating plate 120 rotating 180°, the inner ring, outer ring and sealing ring of the sealed bearing are subjected to a slight acceleration disturbance. If the assembly itself is relatively loose, ink leakage and bubbles may occur at the moment of reversal. This tests the vibration resistance and posture change performance of the sealing ring.

[0067] Example 3: The above solution can only be used to test the sealed bearing when it is stationary. However, the sealed bearing is usually rotating during normal operation, so the device cannot test the sealed bearing in operation. Therefore, the solution of Example 2 is improved as follows: Figures 3-5 As shown:

[0068] It also includes a rotating assembly 500; the rotating assembly 500 includes an electric slide table 510, a lifting plate 520, a telescopic rod 530, a motor 540, and a contact post 550; in the initial state, the electric slide table 510 is fixed on the side of the rotating plate 120 near the vertical plate 150; there are multiple electric slide tables 510, which are evenly spaced; the electric slide table 510 is prior art and will not be described in detail here. The lifting plate 520 is fixed on the slider of the electric slide table 510; the number of the telescopic rod 530, the motor 540, and the contact post 550 are all the same as those of the positioning assembly 300, and they correspond one-to-one; the telescopic rod 530 is fixed on one side of the lifting plate 520, the motor 540 is fixed at the output end of the telescopic rod 530, and the contact post 550 is fixed at the output end of the motor 540; the outer ring of the contact post 550 is made of rubber. In the initial state, the telescopic rod 2 530, the motor 3 540, and the abutment column 550 are all located on the upper side of the rotating plate 120; the telescopic direction of the telescopic rod 2 530 intersects the axis of the mounting port 121, and the rotation axis of the motor 3 540 intersects the axis of the mounting port 121; the abutment column 550 is cylindrical; after the telescopic rod 2 530 is telescopic and the height of the electric slide table 2 510 is adjusted, the outer ring of the abutment column 550 can abut against the inner or outer ring of the sealed bearing to be tested.

[0069] Specifically, during the testing process, the position of the contact post 550 can be controlled by extending and retracting the telescopic rod 530 and raising and lowering the electric slide 510, so that the contact post 550 can contact the inner or outer ring of the tested sealed bearing. After contact, the motor 540 drives it to rotate, thereby driving the inner or outer ring to rotate. When driving the outer ring to rotate, the electrorheological fluid in the fixed bladder 350 is de-energized; when driving the inner ring to rotate, the electrorheological fluid in the fixed bladder 370 is de-energized to avoid excessive friction during the rotation process.

[0070] When the disassembly ring 230 is attached to the rotating plate 120 for vacuum testing, if it is necessary to rotate the inner or outer ring of the sealed bearing, the disassembly ring 230 needs to be briefly separated from the rotating plate 120. After the rotation is completed, the disassembly ring 230 is attached to the rotating plate 120 for testing.

[0071] The technical solutions described in the embodiments of this application above have at least the following technical effects or advantages:

[0072] The rotating component 500, through the cooperation of the telescopic rod 530 and the electric slide 510, adjusts the position of the abutment column 550, allowing the abutment column 550 to fit against the inner or outer ring of the sealed bearing. Then, the motor 540 drives the rotation to simulate the force and motion state of the sealed bearing during operation. This can detect dynamic sealing defects that cannot be exposed in a static state, greatly improving the authenticity of the test and enabling a more comprehensive evaluation of the quality of the sealed bearing. This ensures that the sealed bearing will not fail due to dynamic sealing failure during actual operation.

[0073] The above description is merely a preferred embodiment of the present invention and is not intended to limit the invention. For those skilled in the art, the present invention can have various modifications and variations. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the scope of protection of the present invention.

Claims

1. A bearing testing device for bearing manufacturing and processing, characterized in that, Includes detection components, adsorption components, positioning components, and lifting components; The testing components include a water storage tank, a rotating plate, a mounting port, and a vertical plate; The positioning assembly includes an air pump, a bracket, a center rod, an airbag one, a fixation airbag one, an airbag two, and a fixation airbag two; An installation port is provided on the rotating plate, and the air pump is fixed to one side of the rotating plate; The bracket is cross-shaped, fixed inside the mounting opening, and the central rod is fixed on the bracket; Airbag 1 is fixed inside the installation port, and fixing bag 1 is fixed inside the airbag 1; Airbag 2 is fixed outside the central rod, and fixed airbag 2 is fixed outside the airbag 2 ring; The air pump output is connected to airbag one and airbag two respectively; The first and second fixation capsules are filled with electrorheological fluid; Fixed bladder one and fixed bladder two respectively abut against the outer ring and inner ring of the sealed bearing to be tested; The water tank contains red ink, and the upright plate is fixed to the upper side of the water tank; The adsorption assembly includes a pump body, a cover, a disassembly ring, and white absorbent paper; By using the negative pressure adsorption of the pump body, observe whether red marks appear on the white absorbent paper; The lifting assembly includes an electric slide, a lifting plate, and a connecting component; One electric slide is fixed to the vertical plate and the inner wall of the water tank, and the lower end of the electric slide is located inside the red ink stored in the water tank. There are multiple electric sliding tables, which are evenly spaced. The lifting plate is fixed on the slider of the electric slide table. The number of connecting parts and the number of positioning components are the same and correspond one-to-one; The connecting components include a connecting hose, a fixing tube one, a fixing ring, a connecting rod, and a fixing tube two; Fixing tube one and fixing tube two are respectively fixed to both ends of the connecting hose; The end of the fixed tube away from the connecting hose is fixed to the lower side of the rotating plate, and the fixed tube is connected to the installation port; The fixing ring is annular, and the end of the fixing tube away from the connecting hose is fixed to the inner ring of the fixing ring. The two ends of the connecting rod are fixed to the outer ring of the fixing ring and the lifting plate, respectively. The detection components also include motor one; The two ends of the rotating plate along its length are rotatably set inside the water storage tank. Motor 1 is fixed on one side of the water storage tank, and the output end of Motor 1 is fixed on the rotating shaft that rotatably connects the rotating plate and the water storage tank. One motor is used to drive the rotating plate to rotate; When the motor drives the rotating plate to rotate, the rotating plate does not come into contact with the red ink stored in the water tank; The connecting hose, fixing tube one, and fixing tube two are used to temporarily store red ink; The electric slide can drive the fixed tube to adjust its height, thereby adjusting the liquid level in the connecting hose. By raising the height of the second fixed pipe, observe whether any air bubbles are generated on the water surface located in the second fixed pipe.

2. The bearing testing equipment for bearing production and processing according to claim 1, characterized in that, Both the mounting port and the center rod are cylindrical. Airbag 1, Fixation Bag 1, Airbag 2 and Fixation Bag 2 are all ring-shaped; The axes of the mounting port, center rod, airbag one, fixation airbag one, airbag two, and fixation airbag two are on the same straight line; The upper and lower ends of the first fixed bladder are fixed inside the installation port, and the upper and lower ends of the first fixed bladder are located on the upper and lower sides of the first airbag, respectively. The upper and lower ends of the second fixed bladder are respectively fixed to the outer wall of the central rod, and the upper and lower ends of the second fixed bladder are respectively located on the upper and lower sides of the second airbag; Two electrode plates are installed inside the fixation bladder. The electrode plates are in contact with the electrorheological fluid filling the fixation bladder and are connected to an external power source. Two electrode plates are installed inside the fixation bladder. The electrode plates are in contact with the electrorheological fluid filling the fixation bladder and are connected to an external power source. The sealed bearing to be tested is placed on the bracket and between the first and second fixed bladders; After the sealed bearing to be tested is placed on the bracket, airbag one and airbag two are inflated by the air pump, so that fixed airbag one and fixed airbag two come into contact with the outer ring and inner ring of the sealed bearing to be tested. After the sealed bearing to be tested is placed on the bracket, the upper side of the sealed bearing to be tested is lower than the upper side of the rotating plate.

3. The bearing testing equipment for bearing production and processing according to claim 2, characterized in that, There are multiple mounting ports, which are evenly spaced along the length of the rotating plate; The number of positioning components and the number of mounting ports are the same and correspond one-to-one.

4. The bearing testing equipment for bearing production and processing according to claim 3, characterized in that, The positioning components also include gas pipeline one, gas pipeline two, and gas pipeline three; Three gas pipelines are installed inside the rotating plate; Gas pipeline 1 is installed inside the support frame; gas pipeline 2 is installed inside the central pole. The three ends of the gas pipeline are connected to the output end of the gas pump and the first air bag, respectively. The two ends of gas pipeline 1 are connected to gas pipeline 3 and gas pipeline 2 respectively, and the end of gas pipeline 2 away from gas pipeline 1 is connected to airbag 2.

5. The bearing testing equipment for bearing production and processing according to claim 4, characterized in that, The detection components also include a flip-up component, a mounting plate, and a monitoring head; The flipping component includes telescopic rod one, motor two, and replacement plate; The rotating plate is installed inside the water storage tank; After the sealed bearing to be tested is placed on the bracket, the lower side of the sealed bearing to be tested can come into contact with the red ink; There are two telescopic rods and two motors, and they correspond one-to-one. The output ends of the two motors are symmetrically fixed at both ends of the replacement plate, the output end of the telescopic rod is fixed on the lower side of the motors, and the lower end of the telescopic rod is fixed on the upper side of the water storage tank. The mounting plate is fixed to one side of the upright plate, and the mounting plate is located above the water storage tank; The monitoring head is fixed to the lower side of the mounting plate; The number of monitoring heads and the number of positioning components are the same and correspond one-to-one.

6. The bearing testing equipment for bearing production and processing according to claim 5, characterized in that, The number of adsorption components is twice the number of positioning components, and multiple adsorption components are evenly spaced and fixed on the upper and lower sides of the replacement plate. The number of adsorption components on the upper and lower sides of the plate is the same; Replace the adsorption components on one side of the plate and each one corresponds to a multiple positioning component; The pump body is fixed on the replacement plate, the pump body output end is fixed with the cover, the disassembly ring is threaded on the end of the cover away from the pump body, and white absorbent paper is fixed on the inner ring of the disassembly ring. The end of the detachment ring furthest from the cover is made of rubber. When the telescopic rod lowers the height of the disassembly ring, the disassembly ring can completely cover the sealing installation port.

7. The bearing testing equipment for bearing production and processing according to claim 1, characterized in that, It also includes rotating components; The rotating assembly includes an electric slide, a lifting plate, a telescopic rod, a motor, and a contact column; In the initial state, the electric slide table 2 is fixed on the side of the rotating plate near the vertical plate; There are multiple electric sliding tables, which are evenly spaced. The second lifting plate is fixed on the slider of the second electric slide table; The number of telescopic rod 2, motor 3, and contact post are all consistent with the number of positioning components, and they correspond one-to-one. Telescopic rod 2 is fixed to one side of lifting plate 2, motor 3 is fixed to the output end of telescopic rod 2, and contact column is fixed to the output end of motor 3; The outer ring of the abutment post is made of rubber.

8. The bearing testing equipment for bearing production and processing according to claim 7, characterized in that, In the initial state, the telescopic rod two, the motor three, and the contact post are all located on the side of the rotating plate; The telescopic rod 2's telescopic direction intersects with the axis of the mounting opening, and the rotation axis of motor 3 intersects with the axis of the mounting opening; The opposing column is cylindrical in shape; After the telescopic rod 2 is extended and the height of the electric slide 2 is adjusted, the outer ring of the contact column can contact the inner or outer ring of the sealed bearing to be tested.

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