A bearing detector based on a mobile intelligent terminal

Abstract

The present application relates to the technical field of detection instrument, specifically relates to including detection mobile terminal and detection mechanism, the detection mechanism is installed in the one end of detection mobile terminal, the detection mobile terminal includes detection rod, storage component and adsorption component, the outside of the detection rod is fixedly connected with storage component, the one end of the detection rod outside away from detection mobile terminal is fixedly connected with adsorption component, the detection rod detects bearing condition, the storage component is used for storing, spraying coupling liquid, the adsorption component is used for adsorbing in bearing outside, through the setting of coupling liquid storage bin, sucking disc, adsorption bin, scraping liquid component and liquid return plate, effectively solve the problem of uneven present manual coating coupling liquid, low detection precision.

Description

Technical Field

[0001] This invention relates to the field of testing instrument technology, specifically a bearing testing instrument based on a mobile smart terminal. Background Technology

[0002] In industrial production and machinery maintenance, bearings, as core transmission components, directly determine the stability and service life of equipment. Therefore, regular bearing inspection and timely troubleshooting are crucial for ensuring continuous production. Current mainstream bearing inspection technologies primarily rely on ultrasonic testing and vibration testing. Among these, ultrasonic testing plays a vital role in practical applications due to its ability to accurately identify internal bearing defects such as cracks and wear. However, existing ultrasonic testing equipment and operating procedures still have many technical limitations, making it difficult to meet the demands for efficient, accurate, and convenient testing.

[0003] Firstly, in the application of coupling fluid during ultrasonic testing, traditional methods often rely on manual application. Operators must hold the coupling fluid container and apply it to the bearing surface based on experience. This method is not only difficult to control the amount of coupling fluid used—too much fluid leads to waste and leakage, while too little fluid fails to form a complete ultrasonic transmission medium layer, causing signal attenuation—but also results in significant variations in the uniformity of manual application. Areas with excessively thick or thin coupling fluid directly affect the propagation path and energy of the ultrasonic waves, leading to data inaccuracies and making it impossible to accurately identify internal bearing defects. In severe cases, this may result in missed critical fault information, creating potential equipment safety hazards. Furthermore, the manual application process requires additional operating time, especially in batch bearing testing or large-scale equipment on-site testing scenarios, where the inefficiency is even more pronounced.

[0004] Secondly, the positioning and fixation of testing equipment restricts testing accuracy and ease of operation. Traditional bearing testing equipment is mostly benchtop, which cannot meet the needs of mobile testing on site. A small number of handheld testing instruments require operators to maintain a constant close contact between the probe and the bearing testing surface. Prolonged operation can easily lead to probe displacement due to hand fatigue, compromising the stability of the testing position. Although some equipment is equipped with a simple adsorption structure, the adsorption force is easily affected by residual coupling fluid. During the testing process, excess coupling fluid will adhere to the adsorption contact surface, causing the adsorption structure to not adhere tightly to the bearing surface, resulting in weakened adsorption force or even detachment. This not only requires repeated adjustments to the equipment position but may also affect data continuity due to testing interruptions, further reducing testing efficiency.

[0005] To address the problems of low coupling fluid control accuracy, poor equipment positioning stability, and low testing efficiency in traditional bearing testing technologies, there is an urgent need to develop a new type of bearing testing equipment that can achieve precise coupling fluid supply, stable equipment adsorption and positioning, and collaborative operation with mobile intelligent terminals. This would break through existing technological bottlenecks, improve the accuracy, convenience, and economy of bearing testing, and meet the industrial sector's demand for efficient and intelligent bearing operation and maintenance testing. Summary of the Invention

[0006] (a) Technical problems to be solved

[0007] In view of the above situation and to overcome the defects of the existing technology, the purpose of this invention is to provide a bearing testing instrument based on a mobile smart terminal, which effectively solves the problems of uneven application of coupling fluid and low testing accuracy in existing manual methods.

[0008] (II) Technical Solution

[0009] To achieve the above objectives, the present invention provides the following technical solution:

[0010] A bearing testing instrument based on a mobile smart terminal includes a testing mobile terminal and a testing mechanism, wherein the testing mechanism is installed at one end of the testing mobile terminal;

[0011] The mobile detection terminal includes a detection rod, a storage component, and an adsorption component. The storage component is fixedly connected to the outside of the detection rod, and the adsorption component is fixedly connected to the end of the detection rod away from the mobile detection terminal. The detection rod detects the condition of the bearing, the storage component is used to store and spray coupling liquid, and the adsorption component is used to adsorb onto the outside of the bearing.

[0012] Preferably, the storage component includes a coupling fluid storage chamber, a metering valve, and a dispensing chamber. The coupling fluid storage chamber is fixed to the outside of the detection rod, and the dispensing chamber is fixed to the bottom of the detection rod. The coupling fluid storage chamber and the dispensing chamber are connected by a dispensing pipe.

[0013] A metering valve is installed between the coupling fluid storage tank and the outlet pipe, and the metering valve discharges the coupling fluid in a metered manner.

[0014] The bottom of the liquid outlet chamber is provided with a liquid outlet, which corresponds to the detection position of the detection rod.

[0015] Preferably, the adsorption assembly includes a suction cup, an adsorption chamber, a one-way valve, and a return pipe. The suction cup is installed outside the detection rod, the adsorption chamber is located inside the detection rod, the adsorption chamber is connected to the coupling liquid storage chamber through the return pipe, and a one-way valve is provided outside the return pipe, with the one-way valve located near the end of the adsorption chamber.

[0016] Preferably, the adsorption chamber is further provided with a contact, and a first reset spring is provided between the contact and the bottom of the adsorption chamber. The contact is electrically connected to the detection mobile terminal.

[0017] Preferably, a scraping assembly is fixedly connected to the outside of the liquid outlet chamber, and the scraping assembly is used to scrape the coupling liquid level.

[0018] Preferably, the scraping assembly includes a positioning tube, a driver, a second return spring, and a scraper. The positioning tube is fixed outside the liquid outlet chamber, the driver is disposed outside the positioning tube, the second return spring is disposed between the positioning tube and the driver, and the scraper is fixedly connected to the inner bottom of the driver.

[0019] Preferably, the positioning tube has a guide rail on its outside and the driver has a guide block inside, the guide block corresponding to the guide rail.

[0020] Preferably, the suction cup includes a mounting position, an adsorption position, and a return plate. The mounting position is used to fix the suction cup, the adsorption position is fixedly connected to the lower part of the mounting position, and the return plate is fixed to the inner side of the adsorption position.

[0021] Preferably, the end of the adsorption chamber furthest from the detection mobile terminal is concave.

[0022] Preferably, a sensor is provided at the connection between the adsorption site and the return plate.

[0023] (III) Beneficial Effects

[0024] Compared with the prior art, the present invention provides a bearing testing instrument based on a mobile smart terminal, which has the following beneficial effects:

[0025] The bearing tester based on a mobile smart terminal of the present invention, through the setting of a coupling fluid storage tank, allows the coupling medium stored inside the coupling fluid storage tank to flow steadily into the internal space of the outlet tank along the channel of the outlet pipe, and spray it onto the detection position of the detection rod through the outlet. This structural design not only ensures the accurate delivery of coupling fluid and avoids uneven application by human error, but also improves the accuracy and reliability of the detection.

[0026] The bearing testing instrument based on a mobile smart terminal of the present invention utilizes a suction cup and an adsorption chamber. By pressing the suction cup, it is activated, creating a negative pressure inside the suction cup during the pressing process. Simultaneously, the adsorption chamber starts working to effectively absorb excess coupling liquid remaining inside the suction cup. This design significantly reduces the propagation time of ultrasonic signals in the coupling liquid during the testing process, thereby greatly improving the overall testing efficiency.

[0027] The bearing tester based on a mobile smart terminal of the present invention, through the setting of the scraping component, precisely gathers the coupling fluid in the area around the point to be tested by the rotation of the scraper, and significantly improves the efficiency of the coupling fluid in the testing process through centralized control.

[0028] The bearing detector based on a mobile smart terminal of the present invention features a return liquid plate arranged in a reverse configuration with the adsorption position. This unique opposing layout effectively blocks the leakage path of the coupling liquid inside the adsorption position, preventing the adsorption force of the suction cup from weakening due to liquid loss through the edge of the suction cup. Simultaneously, this design maintains a tight contact between the adsorption position and the detection rod, ensuring continuous and stable adsorption force. Attached Figure Description

[0029] Figure 1 This is a partial structural diagram of the bearing in the bearing testing instrument based on a mobile smart terminal according to the present invention.

[0030] Figure 2 This is a partial structural schematic diagram of the bearing testing mechanism based on a mobile smart terminal according to the present invention.

[0031] Figure 3 This is a cross-sectional structural schematic diagram of the bearing testing mechanism based on a mobile smart terminal according to the present invention.

[0032] Figure 4 This is an enlarged structural diagram of the bearing testing instrument mounting box A based on a mobile smart terminal according to the present invention.

[0033] Figure 5 This is a schematic diagram of the storage component of the bearing testing instrument based on a mobile smart terminal according to the present invention.

[0034] Figure 6 This is a cross-sectional structural diagram of the storage component of the bearing testing instrument based on a mobile smart terminal according to the present invention.

[0035] Figure 7 This is a cross-sectional structural diagram of the suction cup of the bearing testing instrument based on a mobile smart terminal according to the present invention.

[0036] Figure 8 This is a schematic diagram of the scraping component of the bearing detector based on a mobile smart terminal according to the present invention.

[0037] Figure 9 This is a cross-sectional structural diagram of the scraping component of the bearing detector based on a mobile smart terminal according to the present invention.

[0038] In the diagram: 11. Detection mobile terminal; 12. Detection mechanism; 13. Detection rod; 14. Storage component; 15. Adsorption component; 16. Coupling fluid storage chamber; 17. Metering valve; 18. Discharge pipe; 19. Discharge chamber; 20. Discharge port; 21. Suction cup; 22. Adsorption chamber; 23. One-way valve; 24. Return pipe; 25. First return spring; 26. Scraper assembly; 27. Positioner; 28. Driver; 29. ​​Second return spring; 30. Scraper; 31. Mounting position; 32. Adsorption position; 33. Return plate; 34. Guide rail; 35. Contact. Detailed Implementation

[0039] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0040] In the description of this invention, it should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention 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 invention.

[0041] In addition, a fixed connection refers to a connection in which parts or components are fixed and there is no relative movement; a transmission connection refers to a connection in which mechanical motion or torque is transmitted to other working parts through a transmission component; a sliding connection refers to a connection in which two objects are in contact but not fixed and can slide relative to each other; and a rotational connection refers to a connection in which two objects are in contact but not fixed and can rotate relative to each other.

[0042] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this invention, "a plurality of" means two or more, unless otherwise explicitly specified.

[0043] Example 1:

[0044] This embodiment provides a bearing testing instrument based on a mobile smart terminal, which has the following technical features.

[0045] Please see Figure 1-9A bearing testing instrument based on a mobile smart terminal includes a testing mobile terminal 11 and a testing mechanism 12, wherein the testing mechanism 12 is installed at one end of the testing mobile terminal 11.

[0046] The detection mobile terminal 11 includes a detection rod 13, a storage component 14, and an adsorption component 15. The storage component 14 is fixedly connected to the outside of the detection rod 13, and the adsorption component 15 is fixedly connected to the end of the detection rod 13 away from the detection mobile terminal 11. The detection rod 13 is used to detect the condition of the bearing, the storage component 14 is used to store and spray coupling liquid, and the adsorption component 15 is used to adsorb onto the outside of the bearing.

[0047] It should be noted that a professional testing organization 12 conducts comprehensive testing on all performance indicators of the bearing. During the testing process, a high-precision mobile testing terminal 11 is used to process and analyze the collected vibration signals, temperature signals, and other data in real time. The equipment is specially designed with a storage component 14 for the safe storage of the coupling fluid required for testing, ensuring that the liquid does not leak or deteriorate. A convenient liquid injection port is specially provided on the top of the mobile testing terminal 11, through which operators can replenish or replace the coupling fluid at any time, ensuring the continuity of the testing process. In addition, the device is also equipped with an adsorption component 15, which ensures that the detection probe end of the detection rod 13 is always in close contact with the surface of the device being tested, effectively avoiding measurement errors caused by poor contact, thereby significantly improving the data acquisition accuracy and reliability of the entire testing system.

[0048] In an optional embodiment, the storage component 14 includes a coupling fluid storage tank 16, a metering valve 17, and an outlet tank 19. The coupling fluid storage tank 16 is fixed to the outside of the detection rod 13, and the outlet tank 19 is fixed to the bottom of the detection rod 13. The coupling fluid storage tank 16 and the outlet tank 19 are connected by an outlet pipe 18.

[0049] A metering valve 17 is installed between the coupling fluid storage tank 16 and the outlet pipe 18, and the metering valve 17 discharges the coupling fluid in a metered manner;

[0050] The bottom of the liquid outlet chamber 19 is provided with a liquid outlet 20, which corresponds to the detection position of the detection rod 13.

[0051] It should be noted that during use, when the equipment is in operation, driven by gravity, the coupling medium stored inside the coupling fluid storage tank 16 flows steadily into the internal space of the outlet tank 19 along the channel of the outlet pipe 18. Through the precise control of the precisely designed metering valve 17, it can be ensured that the volume of coupling fluid flowing from the storage tank 16 to the outlet tank 19 remains constant each time, thus achieving precise quantitative control of the coupling fluid ejected from the outlet tank 19. Particularly noteworthy is that, due to the careful design of the outlet 20, a precise correspondence is formed with the detection position of the detection rod 13. This structural design not only ensures accurate delivery of the coupling fluid but also significantly increases the effective contact area between the detection position and the detection end, thereby improving the accuracy and reliability of the detection.

[0052] In an optional embodiment, the adsorption assembly 15 includes a suction cup 21, an adsorption chamber 22, a one-way valve 23, and a return pipe 24. The suction cup 21 is installed outside the detection rod 13, the adsorption chamber 22 is disposed inside the detection rod 13, the adsorption chamber 22 is connected to the coupling liquid storage chamber 16 through the return pipe 24, and a one-way valve 23 is disposed outside the return pipe 24, with the one-way valve 23 located at one end near the adsorption chamber 22.

[0053] It should be noted that during actual operation, when testing is required, the suction cup 21 should first be steadily brought close to the surface of the device to be tested. The operator needs to press the main body of the detector appropriately so that the suction cup 21 can be firmly attached to the testing surface of the device. During the continuous pressing of the detector, the suction cup 21 creates a negative pressure inside it. At the same time, the adsorption chamber 22 will start working simultaneously to effectively absorb the excess coupling liquid remaining inside the suction cup 21. This design can significantly reduce the propagation time of the ultrasonic signal in the coupling liquid during the testing process, thereby greatly improving the overall testing efficiency. The absorbed excess coupling liquid will be guided by the return pipe 24 through a specially designed liquid transmission channel and conducted into the internal space of the coupling liquid storage chamber 16 for proper storage. This design not only realizes the recycling of coupling liquid but also embodies the concept of environmental protection and energy saving. In addition, the system also has a key component, the one-way valve 23, which effectively prevents the backflow of the liquid already absorbed inside the return pipe 24, ensuring the one-wayness and reliability of the entire liquid recovery process.

[0054] In an optional embodiment, a contact 35 is also provided inside the adsorption chamber 22, and a first reset spring 25 is provided between the contact 35 and the bottom of the adsorption chamber 22. The contact 35 is electrically connected to the detection mobile terminal 11.

[0055] It should be noted that the special structural design of the contact 35 has a dual function: on the one hand, when the contact 35 contacts the surface to be tested, it moves smoothly along the inner wall of the adsorption chamber 22 into the chamber; on the other hand, this movement simultaneously triggers the adsorption port opening mechanism of the adsorption chamber 22, thereby automatically opening the adsorption port. This linkage design ensures that excess liquid that may accumulate inside the suction cup 21 during the testing process can be effectively and promptly extracted and discharged, ensuring the accuracy of the testing process. After the testing is completed, thanks to the elastic restoring force of the first reset spring 25, the contact 35 can automatically return to its initial position under the push of the spring, completing the entire reset process.

[0056] In an optional embodiment, a scraping assembly 26 is fixedly connected to the outside of the liquid outlet chamber 19. The scraping assembly 26 is used to scrape the coupling liquid level.

[0057] It should be noted that through the reasonable setting and precise adjustment of the wiper assembly 26, this assembly can accurately control the coupling fluid sprayed from the outlet chamber 19. During operation, the wiper assembly 26 precisely gathers the coupling fluid around the area to be detected. Centralized control significantly improves the efficiency of coupling fluid utilization during the detection process. Simultaneously, this design optimizes the flow characteristics of the coupling fluid, allowing the liquid to better adhere to the detection surface, thereby further enhancing the accuracy and reliability of the detection. Overall, the setting of the wiper assembly 26 improves both the distribution of the coupling fluid and its gathering effect in key detection areas, ultimately maximizing the efficiency of coupling fluid utilization.

[0058] In an optional embodiment, the scraping assembly 26 includes a positioning tube 27, an actuator 28, a second return spring 29, and a scraper 30. The positioning tube 27 is fixed to the outside of the liquid outlet chamber 19. The actuator 28 is disposed outside the positioning tube 27. The second return spring 29 is disposed between the positioning tube 27 and the actuator 28. The scraper 30 is fixedly connected to the inner bottom of the actuator 28.

[0059] In an optional embodiment, a guide rail 34 is provided on the outside of the positioning tube 27, and a guide block is provided inside the driver 28, the guide block corresponding to the guide rail 34.

[0060] It should be noted that because the guide rail 34 is spirally arranged on the outer circumferential surface of the positioning tube 27, this special design allows the guide block inside the driver 28 to move precisely along the spiral track of the guide rail 34 during the pressing test. During the movement of the guide block, the spiral structure of the guide rail 34 causes the driver 28 to rotate. When the driver 28 rotates, its internal mechanical connection structure synchronously drives the connected scraper 30 to rotate coaxially. It is worth noting that the scraper 30 is fixedly installed at the inner bottom of the driver 28, ensuring reliable transmission of rotational motion. As the scraper 30 rotates, the linked liquid outlet 20 also rotates accordingly.

[0061] In an optional embodiment, the suction cup 21 includes a mounting position 31, an adsorption position 32, and a return plate 33. The mounting position 31 is used to fix the suction cup 21, the adsorption position 32 is fixedly connected to the lower part of the mounting position 31, and the return plate 33 is fixed to the inner side of the adsorption position 32.

[0062] It should be noted that the rationally designed structural layout of the mounting position 31 effectively achieves a stable connection between the suction cup 21 and the detection rod 13, ensuring the integrity and reliability of both after installation. The adsorption position 32 adopts a multi-segment distribution design. This arrangement significantly enhances the adsorption strength of the adsorption contact surface during the adsorption process, thereby improving the overall adsorption performance. The ingenious placement of the return liquid plate 33 forms a reverse arrangement with the adsorption position 32. This unique opposing layout effectively blocks the leakage path of the coupling liquid inside the adsorption position 32, avoiding the problem of adsorption force attenuation due to liquid loss. At the same time, this design also maintains a close contact between the adsorption position 32 and the detection rod 13, ensuring the continuous stability of the adsorption force.

[0063] In an optional embodiment, the end of the adsorption chamber 22 furthest from the detection mobile terminal 11 is recessed.

[0064] It should be noted that this is to prevent the adsorption site 32 from detaching from the adsorption chamber 22.

[0065] In an optional embodiment, a sensor is provided at the connection between 32 and 33.

[0066] It should be noted that the sensor settings facilitate the control of the opening and closing of the metering valve 17.

[0067] Working Principle: When testing is required, the suction cup 21 should first be steadily brought close to the surface of the device to be tested. The operator needs to press the main body of the detector appropriately so that the suction cup 21 can be firmly adsorbed onto the detection surface of the device to be tested. During the pressing process, the sensor is touched, causing the metering valve 17 to open. Driven by gravity, the coupling medium stored in the coupling fluid storage chamber 16 will flow steadily into the internal space of the outlet chamber 19 along the channel of the outlet pipe 18. Since the position of the outlet 20 is precisely corresponding to the detection position of the detection rod 13, the coupling fluid is sprayed onto the detection position of the detection rod 13. During the continuous pressing of the detector, the scraping component 26 accurately gathers the coupling fluid around the detection point, allowing the liquid to better adhere to the detection surface, thereby further enhancing the accuracy and reliability of the test. The operation of the suction cup 21 creates a negative pressure inside the suction cup 21. At the same time, the adsorption chamber 22 will start working simultaneously to effectively absorb the excess coupling fluid remaining inside the suction cup 21. This design significantly reduces the propagation time of ultrasonic signals in the coupling fluid during the detection process, thereby greatly improving the overall detection efficiency. Excess coupling fluid is drawn in and guided by the return pipe 24 through a specially designed liquid transfer channel into the internal space of the coupling fluid storage chamber 16 for proper storage. After the detection is completed, the contact 35 automatically returns to its initial position under the elastic restoring force of the first reset spring 25, completing the entire reset process.

[0068] The bearing tester based on a mobile smart terminal, through the setting of the coupling fluid storage tank 16, allows the coupling medium stored inside the coupling fluid storage tank 16 to flow steadily into the internal space of the outlet tank 19 along the channel of the outlet pipe 18, and spray it onto the detection position of the detection rod 13 through the outlet 20. This structural design not only ensures the accurate delivery of the coupling fluid and avoids uneven application by human intervention, but also improves the accuracy and reliability of the test.

[0069] The bearing testing instrument based on a mobile smart terminal utilizes a suction cup 21 and an adsorption chamber 22. By pressing the suction cup 21, a negative pressure is created inside it. Simultaneously, the adsorption chamber 22 activates to effectively absorb excess coupling liquid remaining inside the suction cup 21. This design significantly reduces the propagation time of ultrasonic signals in the coupling liquid during testing, thereby greatly improving overall testing efficiency.

[0070] The bearing tester based on a mobile smart terminal, through the setting of the scraper component 26 and the rotation of the scraper 30, accurately gathers the coupling fluid in the area around the point to be tested, and the centralized control significantly improves the efficiency of the coupling fluid in the testing process.

[0071] The bearing tester based on a mobile smart terminal utilizes a return liquid plate 33 arranged in a reverse configuration with the adsorption position 32. This unique opposing layout effectively blocks the leakage path of the coupling liquid inside the adsorption position 32, preventing adsorption force attenuation due to liquid loss. Simultaneously, this design maintains close contact between the adsorption position 32 and the detection rod 13, ensuring continuous and stable adsorption force.

[0072] It should be noted that, in this document, relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0073] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A bearing testing instrument based on a mobile intelligent terminal, comprising a testing mobile terminal (11) and a testing mechanism (12), wherein the testing mechanism (12) is installed at one end of the testing mobile terminal (11), characterized in that: The detection mobile terminal (11) includes a detection rod (13), a storage component (14), and an adsorption component (15). The storage component (14) is fixedly connected to the outside of the detection rod (13), and the adsorption component (15) is fixedly connected to the end of the detection rod (13) away from the detection mobile terminal (11). The detection rod (13) detects the condition of the bearing, the storage component (14) is used to store and spray coupling liquid, and the adsorption component (15) is used to adsorb onto the outside of the bearing. The storage component (14) includes a coupling fluid storage tank (16), a metering valve (17), and a discharge tank (19). The coupling fluid storage tank (16) is fixed to the outside of the detection rod (13), and the discharge tank (19) is fixed to the bottom outside of the detection rod (13). The coupling fluid storage tank (16) and the discharge tank (19) are connected by a discharge pipe (18). A metering valve (17) is provided between the coupling fluid storage tank (16) and the outlet pipe (18) for metering the coupling fluid. The bottom of the liquid outlet chamber (19) is provided with a liquid outlet (20), and the liquid outlet (20) corresponds to the detection position of the detection rod (13); The adsorption assembly (15) includes a suction cup (21), an adsorption chamber (22), a one-way valve (23), and a return pipe (24). The suction cup (21) is installed outside the detection rod (13), and the adsorption chamber (22) is located inside the detection rod (13). The adsorption chamber (22) is connected to the coupling liquid storage chamber (16) through the return pipe (24). A one-way valve (23) is provided outside the return pipe (24), and the one-way valve (23) is located at one end close to the adsorption chamber (22). The adsorption chamber (22) is also provided with a contact (35), and a first reset spring (25) is provided between the contact (35) and the bottom of the adsorption chamber (22). The contact (35) is electrically connected to the detection mobile terminal (11). The external of the liquid outlet chamber (19) is fixedly connected to a scraping assembly (26), which is used to scrape the coupling liquid level. The scraping assembly (26) includes a positioning tube (27), a driver (28), a second return spring (29), and a scraper (30). The positioning tube (27) is fixed to the outside of the liquid outlet chamber (19). The driver (28) is provided on the outside of the positioning tube (27). The second return spring (29) is provided between the positioning tube (27) and the driver (28). The scraper (30) is fixedly connected to the inner bottom of the driver (28).

2. The bearing testing instrument based on a mobile intelligent terminal according to claim 1, characterized in that, The positioning tube (27) has a guide rail (34) on its outside, and the driver (28) has a guide block inside, which corresponds to the guide rail (34).

3. The bearing testing instrument based on a mobile intelligent terminal according to claim 1, characterized in that, The suction cup (21) includes a mounting position (31), an adsorption position (32), and a return plate (33). The mounting position (31) is used to fix the suction cup (21). The adsorption position (32) is fixedly connected to the lower part of the mounting position (31). The return plate (33) is fixed to the inner side of the adsorption position (32).

4. A bearing testing instrument based on a mobile intelligent terminal according to claim 1, characterized in that, The adsorption chamber (22) is recessed at the end furthest from the detection mobile terminal (11).

5. A bearing testing instrument based on a mobile intelligent terminal according to claim 3, characterized in that, A sensor is provided at the connection between the adsorption site (32) and the return plate (33).

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