Online gear bearing wear detection device

Abstract

The utility model discloses a gear bearing wear on-line detection device, and relates to the technical field of bearing detection. According to the gear bearing wear on-line detection device, the gear box shell, the vibration meter, the electric telescopic rod, the vibration measuring head, the acoustic emission sensor, the oil return pipe, the micro oil particle sensor, the control panel and the gear bearing main body are arranged, so that the function of carrying out on-line detection on the gear bearing main body in multiple modes is realized, and the fault detection rate and the early warning capability are improved; a single sensor may be interfered to cause data errors, multi-parameter cooperation can filter false alarms and reduce the risk of false alarms and missing alarms, multi-means online detection realizes full-dimension perception of the health state of a gear bearing main body through data redundancy and cross validation, and through the arrangement of a gear box shell, a fixing frame, a first oil tank, a second oil tank and a filter plate, the detection accuracy is improved. And the function of filtering lubricating oil is achieved, and the situation that metal impurities contained in the lubricating oil abrade the gear bearing body is prevented.

Description

Technical Field

[0001] This utility model relates to the field of bearing testing technology, specifically to an online gear bearing wear detection device. Background Technology

[0002] Bearings are an important component in modern mechanical equipment. Their main function is to support rotating mechanical parts, reduce the coefficient of friction during their movement, and ensure their rotational accuracy. With the continuous progress of industrial level and the continuous improvement of production automation level, bearings have been widely used in many industries. Their quality directly affects the working performance of machine tools.

[0003] Therefore, Chinese Patent Publication No. CN221056050U discloses a bearing wear detection device, which includes a mounting base, an oil pump, an oil tank, a magnet, and an iron filings thickness detection element. The oil pump is connected to a first oil pipe and a second oil pipe, which are connected via the pump. The second oil pipe connects to the inside of the oil tank. The mounting base has an air inlet channel and an oil inlet / outlet channel. One end of the air inlet channel connects to the inside of the oil tank, and the other end connects to the outside of the oil tank. One end of the oil inlet / outlet channel connects to the first oil pipe, and the other end is used to connect to the piping of the lubrication component. The adsorption area of ​​the magnet is placed in the oil inlet / outlet channel, and the sensing area of ​​the iron filings thickness detection element is placed in the oil inlet / outlet channel and positioned directly opposite the magnet. This invention can effectively detect bearing wear and trigger an alarm when the bearing wears to a certain extent, reminding relevant personnel to conduct manual inspection and handling, ensuring the safe use of lubrication components and related equipment.

[0004] However, this bearing wear detection device relies on vibration sensors and the thickness of iron filings in the oil for detection. It requires the iron filings to accumulate to a certain amount before triggering an alarm, which may lead to missed detection of early wear, thus resulting in a defect in the use of the device. Utility Model Content

[0005] To address the shortcomings of existing technologies, this utility model provides an online gear bearing wear detection device to solve the problems mentioned in the background section.

[0006] The bearing wear detection device relies on vibration sensors and the thickness of iron filings in the oil for detection. It only triggers an alarm when the iron filings accumulate to a certain amount, which may lead to missed detection of early wear, thus causing a defect in the device's use.

[0007] To achieve the above objectives, this utility model provides the following technical solution:

[0008] An online gear bearing wear detection device includes a gearbox housing, inside which a gear bearing body is installed. A vibration meter is fixedly connected to the top of the gearbox housing via a support frame. An electric telescopic rod is fixedly connected to the bottom of the vibration meter. A vibration measuring head is installed on one side of the electric telescopic rod, which passes through the gearbox housing. The bottom of the vibration measuring head contacts the outer side of the gear bearing body. An acoustic emission sensor is installed on the side of the gearbox housing near the gear bearing body. A second oil tank is fixedly connected to one side of the gearbox housing via a fixing frame. A first oil tank is threaded to the bottom of the second oil tank. A return oil pipe is fixedly connected to the top of the second oil tank. The end of the return oil pipe away from the second oil tank extends through one side of the gearbox housing into the gear bearing body. A miniature oil particle sensor is installed inside the return oil pipe.

[0009] Preferably, an oil pump is fixedly connected inside the first oil tank, and an oil inlet pipe is fixedly connected to one end of the oil pump.

[0010] Preferably, the end of the oil inlet pipe away from the oil pump extends through one side of the gearbox housing into the interior of the gear bearing body.

[0011] Preferably, a filter plate is fixedly connected inside the first oil tank and above the oil pump.

[0012] Preferably, a control panel is fixedly connected to one side of the gearbox housing.

[0013] Preferably, the oil pump, miniature oil particle sensor, vibration meter, electric telescopic rod, vibration measuring head, and acoustic emission sensor are all electrically connected to the control panel.

[0014] This invention provides an online detection device for gear bearing wear. Compared with the prior art, it has the following advantages:

[0015] 1. This online gear bearing wear detection device, by setting up a gearbox housing, vibration meter, electric telescopic rod, vibration measuring head, acoustic emission sensor, oil return pipe, miniature oil particle sensor, control panel, and gear bearing body, realizes the function of online detection of gear bearing body in multiple ways, improves fault detection rate and early warning capability. A single sensor may be interfered with, resulting in data errors (such as vibration signal being masked by equipment noise), while multi-parameter collaboration can filter false alarms, reduce the risk of false alarms and missed alarms, and the multi-method online detection, through data redundancy and cross-validation, realizes the full-dimensional perception of the health status of gear bearing body.

[0016] 2. This online gear bearing wear detection device, by setting up a gearbox housing, a fixed frame, a first oil tank, a second oil tank, and a filter plate, realizes the function of filtering lubricating oil, preventing metal impurities in the lubricating oil from causing wear on the gear bearing body. Furthermore, by removing the first oil tank from the bottom of the second oil tank, it is convenient to clean the filter plate and prevent excessive accumulation of metal impurities. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the internal structure of the present invention;

[0018] Figure 2 This is a schematic diagram of the three-dimensional structure of the present invention. Figure 1 ;

[0019] Figure 3 This is a schematic diagram of the three-dimensional structure of the present invention. Figure 2 ;

[0020] Figure 4 This is an exploded view of the present invention;

[0021] Figure 5 This is an enlarged structural diagram of part A in this utility model.

[0022] In the diagram: 1. Gearbox housing; 2. First oil tank; 3. Fixing frame; 4. Oil inlet pipe; 5. Oil return pipe; 6. Vibration meter; 7. Electric telescopic rod; 8. Vibration measuring head; 9. Acoustic emission sensor; 10. Second oil tank; 11. Filter plate; 12. Oil pump; 13. Miniature oil particle sensor; 14. Control panel; 15. Gear bearing body. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0024] Please see Figures 1-5This utility model provides a technical solution: vibration data generated during gear operation is transmitted to a vibration meter 6 via a vibration measuring head 8. An acoustic emission sensor 9 is installed on the side of the gearbox housing 1 near the gear bearing body 15. The acoustic emission sensor 9 monitors the high-frequency stress waves released by the material of the gear bearing body 15 when microcracks propagate or plastic deformation occurs, effectively alerting the gear bearing body 15 to early wear. A second oil tank 10 is fixedly connected to one side of the gearbox housing 1 via a fixing bracket 3. The bottom of the second oil tank 10 is threadedly connected to the first oil tank 2, and the top of the second oil tank 10 is fixedly connected to an inlet. The top of the second oil tank 10 is fixedly connected to an oil return pipe 5. The end of the oil return pipe 5 away from the second oil tank 10 passes through one side of the gearbox housing 1 and extends into the gear bearing body 15. Excess lubricating oil in the gear bearing body 15 returns to the first oil tank 2 and the second oil tank 10 through the oil return pipe 5. A miniature oil particle sensor 13 is installed inside the oil return pipe 5. The lubricating oil in the oil return pipe 5 is detected by the miniature oil particle sensor 13 for the metal particles it contains. When fine particles continue to rise, it indicates bearing fatigue wear. The alarm mechanism is activated through the control panel 14 to remind the staff.

[0025] Furthermore, an oil pump 12 is fixedly connected inside the first oil tank 2, and an oil inlet pipe 4 is fixedly connected to one end of the oil pump 12. The oil pump 12 draws the filtered lubricating oil in the first oil tank 2 into the oil inlet pipe 4.

[0026] Furthermore, the end of the oil inlet pipe 4 away from the oil pump 12 extends through one side of the gearbox housing 1 to the interior of the gear bearing body 15, and the lubricating oil is drawn into the gear bearing body 15 through the oil inlet pipe 4 to lubricate the gear bearing body 15.

[0027] Furthermore, a filter plate 11 is fixedly connected inside the first oil tank 2 and above the oil pump 12 to filter the lubricating oil entering the first oil tank 2, preventing the lubricating oil from containing metal impurities that would cause accelerated wear of the gear bearing body 15.

[0028] Furthermore, a control panel 14 is fixedly connected to one side of the gearbox housing 1. The control panel 14 is connected to the alarm mechanism. When the detected data is abnormal, the control panel 14 controls the alarm mechanism to sound an alarm.

[0029] Furthermore, the oil pump 12, miniature oil particle sensor 13, vibration meter 6, electric telescopic rod 7, vibration measuring head 8, and acoustic emission sensor 9 are all electrically connected to the control panel 14 for better overall control of the bearing wear online detection device. The bearing wear online detection device includes a gearbox housing 1, inside which a gear bearing body 15 is installed. A vibration meter 6 is fixedly connected to the top of the gearbox housing 1 via a support frame. An electric telescopic rod 7 is fixedly connected to the bottom of the vibration meter 6. A vibration measuring head 8 is installed on one side of the electric telescopic rod 7, passing through the gearbox housing 1. When the electric telescopic rod 7 is activated, it moves the vibration measuring head 8, causing the bottom of the vibration measuring head 8 to contact the gear bearing body 15, thus more effectively monitoring the vibration of the gear bearing body 15. The bottom of the vibration measuring head 8 contacts the outer side of the gear bearing body 15. Vibration data generated by the gear bearing body 15 during operation is transmitted to the vibration meter 6 through the vibration measuring head 8. An acoustic emission sensor is installed on the side of the gearbox housing 1 near the gear bearing body 15. Device 9, acoustic emission sensor 9 monitors the high-frequency stress waves released by the material of the gear bearing body 15 when microcracks propagate or plastic deformation occurs, which can effectively alert the gear bearing body 15 to early wear. A second oil tank 10 is fixedly connected to one side of the gearbox housing 1 via a fixing bracket 3. The bottom of the second oil tank 10 is threadedly connected to the first oil tank 2. An inlet is fixedly connected to the top of the second oil tank 10. A return oil pipe 5 is fixedly connected to the top of the second oil tank 10. The end of the return oil pipe 5 away from the second oil tank 10 passes through one side of the gearbox housing 1 and extends into the gear bearing body 15. Excess lubricating oil in the gear bearing body 15 returns to the first oil tank 2 and the second oil tank 10 through the return oil pipe 5. A miniature oil particle sensor 13 is installed inside the return oil pipe 5. The lubricating oil in the return oil pipe 5 is detected by the miniature oil particle sensor 13 for the metal particles contained in it. When fine particles continue to rise, it indicates bearing fatigue wear. The alarm mechanism is activated through the control panel 14 to remind the staff.

[0030] Furthermore, an oil pump 12 is fixedly connected inside the first oil tank 2, and an oil inlet pipe 4 is fixedly connected to one end of the oil pump 12. The oil pump 12 draws the filtered lubricating oil in the first oil tank 2 into the oil inlet pipe 4.

[0031] Furthermore, the end of the oil inlet pipe 4 away from the oil pump 12 extends through one side of the gearbox housing 1 to the interior of the gear bearing body 15, and the lubricating oil is drawn into the gear bearing body 15 through the oil inlet pipe 4 to lubricate the gear bearing body 15.

[0032] Furthermore, a filter plate 11 is fixedly connected inside the first oil tank 2 and above the oil pump 12 to filter the lubricating oil entering the first oil tank 2, preventing the lubricating oil from containing metal impurities that would cause accelerated wear of the gear bearing body 15. The first oil tank 2 can be disassembled from the bottom of the second oil tank 10 to clean the filter plate 11.

[0033] Furthermore, a control panel 14 is fixedly connected to one side of the gearbox housing 1. The control panel 14 is connected to the alarm mechanism. When the detected data is abnormal, the control panel 14 controls the alarm mechanism to sound an alarm.

[0034] Furthermore, the oil pump 12, the miniature oil particle sensor 13, the vibration meter 6, the electric telescopic rod 7, the vibration measuring head 8, and the acoustic emission sensor 9 are all electrically connected to the control panel 14, enabling better overall control of the device.

[0035] In use, the vibration head 8 is located on one side of the gear bearing body 15 to perform real-time detection of the gear bearing body 15 during operation. The signal sensed by the vibration head 8 is transmitted to the vibration meter 6 for analysis and processing. The vibration meter 6 transmits the processed data to the control panel 14, which is connected to the alarm mechanism. When the vibration signal triggers the threshold, an alarm is triggered to alert nearby personnel. At the same time, the acoustic emission sensor 9 and the miniature oil particle sensor 13 also monitor the wear state of the gear bearing body 15. The acoustic emission sensor 9 monitors the high-frequency stress waves released by the material of the gear bearing body 15 when microcracks propagate or plastic deformation occurs. Early wear of the gear bearing body 15 will generate transient acoustic emission signals, which occur much earlier than vibration, compensating for the difficulty in detecting early wear by the vibration meter 6. The oil pump 12 pumps oil from the first oil tank 2 and the second oil tank 2. The lubricant in tank 10 is pumped to the gear bearing body 15 through the oil inlet pipe 4 to lubricate the gear bearing body 15. Excess lubricant in the gear bearing body 15 returns to the first oil tank 2 and the second oil tank 10 through the return oil pipe 5. When the lubricant passes through the return oil pipe 5, the miniature oil particle sensor 13 installed in the return oil pipe 5 monitors the metal particles in the lubricant and counts the metal particles in real time. The miniature oil particle sensor 13 is photosensitive and detects ferromagnetic particles based on the change of the electromagnetic field of the coil. When the number of large particles in the lubricant suddenly increases or the number of fine particles continues to rise, the miniature oil particle sensor 13 transmits the signal to the control panel 14, which triggers the alarm mechanism to remind the staff. The combination of multiple detection methods allows for online detection of the wear of the gear bearing body 15, detecting abnormalities before irreversible failures occur and avoiding sudden shutdowns.

[0036] Furthermore, any content not described in detail in this specification is existing technology known to those skilled in the art.

[0037] 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, the phrase "comprising an element defined as..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0038] Although embodiments of the present 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 present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A device for on-line detection of wear of a gear bearing, comprising a gear box housing (1), characterized in that: The inside of the gear box shell (1) is provided with a gear bearing body (15), the top of the gear box shell (1) is fixedly connected with a vibration tester (6) through a support frame, the bottom of the vibration tester (6) is fixedly connected with an electric telescopic rod (7), the output end of the electric telescopic rod (7) is provided with a vibration head (8) penetrating through one side of the gear box shell (1), the bottom of the vibration head (8) is in contact with the outside of the gear bearing body (15), the side of the gear box shell (1) close to the gear bearing body (15) is provided with an acoustic emission sensor (9), one side of the gear box shell (1) is fixedly connected with a second oil tank (10) through a fixing frame (3), the bottom of the second oil tank (10) is threadedly connected with a first oil tank (2), the top of the second oil tank (10) is fixedly connected with an oil return pipe (5), one end of the oil return pipe (5) away from the second oil tank (10) extends to the inside of the gear bearing body (15) penetrating through one side of the gear box shell (1), and the inside of the oil return pipe (5) is provided with a micro oil particle sensor (13).

2. A gear bearing wear on-line detection device according to claim 1, characterized in that: The inside of the first oil tank (2) is fixedly connected with an oil pump (12), and one end of the oil pump (12) is fixedly connected with an oil inlet pipe (4).

3. A gear bearing wear on-line detection device according to claim 2, characterized in that: One end of the oil inlet pipe (4) away from the oil pump (12) extends to the inside of the gear bearing body (15) penetrating through one side of the gear box shell (1).

4. A gear bearing wear on-line detection device according to claim 3, characterized in that: The inside of the first oil tank (2) and above the oil pump (12) are fixedly connected with a filter plate (11).

5. A gear bearing wear on-line detection device according to claim 2, characterized in that: One side of the gear box shell (1) is fixedly connected with a control panel (14).

6. A gear bearing wear on-line detection device according to claim 5, characterized in that: The oil pump (12), the micro oil particle sensor (13), the vibration tester (6), the electric telescopic rod (7), the vibration head (8) and the acoustic emission sensor (9) are electrically connected with the control panel (14).

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