A device for monitoring and warning the state of a motor bearing

Abstract

The present invention relates to the field of bearing monitoring, and discloses a device for monitoring and warning the state of an electric motor bearing, which includes a mounting seat, an electric motor body fixedly connected to the mounting seat, and a bearing seat. The bearing seat is sleeved outside the bearing of the output shaft of the electric motor body. A placement groove is penetrated and opened on the inner wall of the bearing seat, and a detection component for monitoring the state of the bearing and a plurality of rotating components movably engaged with the detection component are movably arranged inside the placement groove. A plurality of connection components movably attached to the bearing seat are movably arranged inside the bearing seat; through the cooperation among the rotating components, the connection components, the detection component, the toothed ring, etc., the present invention can drive the detection component to move itself and rotate relative to the bearing, so that different positions of the detection component can contact and detect different positions on the outer surface of the bearing. At the same time, different positions of the detection component will detect the same position, and data comparison is carried out to obtain more accurate and comprehensive temperature data.

Description

Technical Field

[0001] The present invention relates to the technical field of bearing monitoring, and particularly to a device for monitoring and warning the state of a motor bearing. Background Art

[0002] Bearings are a common device widely used in motors in the fields of electric power, metallurgy, aviation, etc. They play the role of bearing and transmitting loads in the motor. Whether its operating state is normal directly affects the performance of the entire motor. Therefore, it is very necessary to monitor and warn the operating state of the bearing.

[0003] Chinese Patent Publication No. CN210969432U discloses a device for monitoring the temperature rise of a bearing of a stone saw, which relates to an on-line bearing monitoring system, including an outer bearing ring, a base, a temperature sensor, a power supply module, an electromagnetic valve, a microprocessor, an indicator light, and a wireless communication module, including a base, a rotating motor, and a bearing housing. The upper surface of the base is fixed with a rotating motor; it has the advantages of real-time monitoring of the temperature change of the bearing, etc.

[0004] This device uses a temperature sensor with a fixed arc-shaped metal sheet to monitor the temperature of the bearing for a long time. The positions of the arc-shaped metal sheet and the temperature sensor are fixed, and the long-term rotation of the bearing causes relatively fast damage to the arc-shaped metal sheet and the temperature sensor, resulting in a low service life of the arc-shaped metal sheet and the temperature sensor, and it is impossible to effectively monitor the bearing for a long time.

[0005] Therefore, it is necessary to provide a device for monitoring and warning the state of a motor bearing to solve the above technical problems. Summary of the Invention

[0006] The purpose of the present invention is to provide a device for monitoring and warning the state of a motor bearing to solve the problems in the above background art that the positions of the arc-shaped metal sheet and the temperature sensor are fixed, and the long-term rotation of the bearing causes relatively fast damage to the arc-shaped metal sheet and the temperature sensor, resulting in a low service life of the arc-shaped metal sheet and the temperature sensor, and it is impossible to effectively monitor the bearing for a long time, etc.

[0007] To achieve the above purpose, the temperature sensor and the component for installing the temperature sensor can also rotate as the bearing rotates, so that the contact with the bearing changes, reducing damage.

[0008] Based on the above ideas, the present invention provides the following technical solutions: a motor bearing state monitoring and early warning device, comprising a mounting seat and a motor body and a bearing seat fixedly connected to the mounting seat, the bearing seat sleeve being arranged on the outside of the bearing of the output shaft of the motor body, the inner wall of the bearing seat being penetrated by a placement groove, the interior of the placement groove being movably provided with a detection component for monitoring the bearing state and a plurality of rotating components movably engaged with the detection component, the interior of the bearing seat being movably provided with a plurality of connecting components movably engaged with the bearing seat, a plurality of rotating components being connected to a plurality of connecting components in a one-to-one correspondence, the detection component being annular and passing through each rotating component and connecting component in turn, and a gear ring being transmission-connected to the rotating component being fixedly installed inside the bearing seat;

[0009] The motor body drives the bearing to rotate through the output shaft, the bearing drives the detection component to move relative to the rotating component, the detection component drives the rotating component to rotate, and the rotating component rotates along the gear ring under the action of the gear ring and drives the connecting component to move synchronously.

[0010] As a further solution of the present invention: the rotating assembly includes a U-shaped bracket located inside the placement groove, a first spring is arranged between the surface of the U-shaped bracket and the inner wall of the bearing seat, a first support rod movably connected to the connecting assembly is penetrated and rotatably installed on the surface of the U-shaped bracket, a gear connected to the gear ring is fixedly installed on the end of the first support rod, a second support rod is fixedly installed inside the U-shaped bracket, a synchronous transmission mechanism is arranged between the first support rod and the second support rod, a rotating roller movably engaged with the detection assembly is fixedly installed on the outer surface of the second support rod, and a plurality of grooves are opened on the outer surface of the rotating roller.

[0011] As a further solution of the present invention: the synchronous transmission mechanism is two pulleys, the two pulleys are fixedly mounted on the outer surfaces of the first support rod and the second support rod respectively, and the two pulleys are driven by a belt.

[0012] As a further solution of the present invention: the connecting assembly includes a connecting rod located inside the bearing seat, a cylinder rotatably mounted on the outer surface of the connecting rod and movably fitted with the detection assembly, a roller movably fitted with the inner wall of the bearing seat is fixedly mounted on the end of the connecting rod, and a limit plate movably connected to the rotating assembly is movably mounted on the outer surface of the connecting rod.

[0013] As a further solution of the present invention: the roller and the gear ring are arranged in parallel, and the size of the roller is larger than the cylinder.

[0014] As a further solution of the present invention: the detection component includes an elastic metal belt and a warning light fixedly installed on the bearing seat, the elastic metal belt is ring-shaped and passes around each rotating component and connecting component in sequence, a plurality of connecting blocks are fixedly installed on the surface of the elastic metal belt, the connecting blocks correspond to the position of the groove and are adapted in size, and a temperature sensor is arranged on the elastic metal belt.

[0015] As a further solution of the present invention: several temperature sensors are provided, and the several temperature sensors are arranged in one-to-one correspondence with several connecting blocks, and the temperature sensors are electrically connected to the warning lights.

[0016] As a further solution of the present invention: the elastic metal strip is arranged in multiple segments, the connecting block is composed of two identical half-blocks, and the two half-blocks of the connecting plate are connected by a snap connection.

[0017] As a further solution of the present invention: a second spring is arranged between the connecting rod and the inner wall of the bearing seat, and the second spring is arranged on the side of the connecting rod close to the bearing.

[0018] Compared with the prior art, the beneficial effects of the present invention are: through the cooperation between the rotating assembly, the connecting assembly, the detection assembly, the toothed ring, etc., the detection assembly can be driven to move itself and rotate relative to the bearing, so that different positions of the detection assembly can contact different positions on the outer surface of the bearing, perform temperature detection to obtain data, effectively reduce the damage to the detection assembly, and at the same time different positions of the detection assembly will detect the same position, realize data comparison to obtain more accurate and comprehensive temperature data, with better monitoring effect and higher practicability. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The present invention will be further described below with reference to the drawings and embodiments:

[0020] Figure 1 is a schematic diagram of the overall structure of the present invention;

[0021] Figure 2 is a three-dimensional view of the internal structure of the bearing seat of the present invention;

[0022] Figure 3 is a front view of the internal structure of the bearing seat of the present invention;

[0023] Figure 4 is an arrangement diagram of the rotating assembly and the connecting assembly of the present invention;

[0024] Figure 5 is Figure 4 an enlarged view of the structure at A in

[0025] Figure 6 is Figure 4 an enlarged view of the structure at B in

[0026] Figure 7 is a schematic diagram of the structure of the rotating assembly of the present invention;

[0027] Figure 8 is a schematic diagram of the structure of the connecting assembly of the present invention;

[0028] Figure 9 It is a left view of the internal structure of the bearing seat of the present invention;

[0029] Figure 10 It is a schematic diagram of the structure of the detection component of the present invention.

[0030] In the figure: 1. motor body; 2. bearing seat; 3. rotating assembly; 4. connecting assembly; 5. detection assembly; 6. gear ring; 7. mounting seat; 301. U-shaped bracket; 302. first spring; 303. first support rod; 304. pulley; 305. gear; 306. rotating roller; 307. groove; 401. connecting rod; 402. cylinder; 403. roller; 404. limit plate; 501. elastic metal belt; 502. connecting block; 503. temperature sensor. DETAILED DESCRIPTION

[0031] Embodiment 1:

[0032] See also Figures 1 to 4 The embodiment of the present invention provides a motor bearing state monitoring and early warning device: it includes a mounting seat 7 and a motor body 1 and a bearing seat 2 fixedly connected to the mounting seat 7, the bearing seat 2 is sleeved on the outside of the bearing of the output shaft of the motor body 1; the mounting seat 7 and the motor body 1 are both existing mature technologies and are not described in detail here; the bottom of the bearing seat 2 is fixedly connected to the mounting seat 7, and an annular sleeve is arranged above it and is arranged outside the bearing, and the interior is hollow and an annular placement groove is opened through the inner wall.

[0033] The internal movement of the placement groove is provided with a detection component 5 for monitoring the bearing status, and the internal movement of the bearing seat 2 is provided with a plurality of rotating components 3 and a plurality of connecting components 4, and the plurality of rotating components 3 and the connecting components 4 are used to support the detection component 5; the plurality of rotating components 3 are connected with the plurality of connecting components 4 in a one-to-one correspondence, and the detection component 5 is in a closed ring shape and passes around each rotating component 3 and the connecting component 4 in turn, and the detection component 5 is movably engaged with the rotating component 3, and the connecting component 4 is movably fitted, and under the action of the rotating component 3, the detection component 5 can be tightly fitted with the outer surface of the bearing; a gear ring 6 which is transmission-connected to the rotating component 3 is fixedly installed inside the bearing seat 2.

[0034] In order to facilitate the inspection and replacement of the rotating assembly 3, the connecting assembly 4 and the detecting assembly 5, a detachably connected cover is provided on the front surface of the mounting seat 2.

[0035] When the motor body 1 starts, the output shaft drives the bearing to rotate, and the bearing drives the detection component 5 to move relative to the rotating component 3, so that the rotating component 3 rotates. Under the action of the gear ring 6, the rotating component 3 starts to rotate along the gear ring 6 and drives the connecting component 4 to move synchronously.

[0036] In this embodiment, preferably: when in use, the motor body 1 is started. The motor body 1 drives the bearing to rotate through the output shaft. The bearing is in close contact with the detection component 5, and can drive the detection component 5 to rotate relative to the rotating component 3. The detection component 5 then causes the rotating component 3 to rotate. When the rotating component 3 rotates, it is in transmission connection with the toothed ring 6 and can also rotate along the toothed ring 6. When the rotating component 3 rotates along the toothed ring 6, it will drive the connecting component 4 to move synchronously, that is, the rotating component 3 and the connecting component 4 rotate relative to the output shaft, and then drive the detection component 5 to also rotate relative to the bearing, so as to monitor the bearing more accurately and comprehensively. When the temperature of the bearing on the motor body 1 is too high, the detection component 5 will give a warning, indicating to the staff that something is wrong at this time, which is convenient for the staff to grasp the working state of the bearing in real time; by setting the rotating component 3, the connecting component 4, the toothed ring 6 and the placement groove, it not only ensures that the detection component 5 can realize the real-time monitoring of the bearing, but also realizes the self-movement of the detection component 5 and its rotation relative to the bearing. The advantage of working like this is that the detection component 5 can monitor all positions of the bearing instead of stopping at a certain position. Because the detection component 5 can also move itself, the contact position with the bearing is not fixed, and the damage to the detection component 5 is smaller; during the rotation of the detection component 5 relative to the bearing, different positions of the detection component 5 will detect the same position of the bearing, and data comparison is carried out to obtain more accurate and comprehensive temperature data, and the monitoring effect is better and the practicability is higher.

[0037] Embodiment Two:

[0038] Please refer to Figures 1 to 10On the basis of the first embodiment, the rotating assembly 3 includes a U-shaped bracket 301 located inside the placement groove, and a first spring 302 is arranged between the surface of the U-shaped bracket 301 away from the bearing and the inner wall of the bearing seat 2. The first spring 302 is fixedly connected to the U-shaped bracket 301, but not to the bearing seat 2. Because the first spring 302 is arranged, the U-shaped bracket 301 has a tendency to move relative to the bearing, and through the first spring 302, the detection assembly 5 can better contact with the bearing, so that the detection assembly 5 can better detect data; the surface of the U-shaped bracket 301 is penetrated and rotatably installed with a first support rod 303, and the end of the first support rod 303 is fixedly installed with a gear 305 that is transmission-connected to the gear ring 6. A second support rod (not shown in the figure) is fixedly installed inside the U-shaped bracket 301, and the second support rod is located between the bearing and the first support rod 303. Pulleys 304 are fixedly installed on the outer surfaces of the first support rod 303 and the second support rod, and the two pulleys 304 are driven by a belt, that is, the first support rod 303 and the second support rod are synchronously rotated by the cooperation of the belt and the pulley 304. Of course, the pulley 304 and the belt can also be replaced by a sprocket and a chain for transmission respectively; a rotating roller 306 that is movably engaged with the detection component 5 is fixedly installed on the outer surface of the second support rod, and a plurality of grooves 307 are opened on the outer surface of the rotating roller 306, and the plurality of grooves 307 are arranged in a ring array along the outer surface of the rotating roller 306.

[0039] The connecting assembly 4 includes a connecting rod 401 located inside the bearing seat 2, a cylinder 402 movably fitted with the detection assembly 5 is rotatably mounted on the outer surface of the connecting rod 401, a roller 403 movably fitted with the inner wall of the bearing seat 2 is fixedly mounted on the end of the connecting rod 401, and a limiting plate 404 movably connected to the first support rod 303 is also movably mounted on the outer surface of the connecting rod 401. By setting the limiting plate 404, the synchronous movement of the connecting rod 401 and the first support rod 303 can be achieved; the size of the roller 403 is larger than the cylinder 402, so that the cylinder 402 can be hidden inside the bearing seat 2, so as to achieve the following effect: Figure 3 The installation effect shown reduces the exposed parts in the bearing seat 2, so that the staff can still see the real-time status of the bearing in a timely and clear manner; and because the cylinder 402 is provided, the turning of the detection component 5 after passing the rotating roller 306 can be realized.

[0040] The thickness of the gear ring 6 in the bearing seat 2 is relatively small. Figure 8 As shown, the roller 403 moves on the inner wall of the bearing seat 2 and cooperates with the gear 305 and the gear ring 6 without interfering with each other.

[0041] The detection component 5 includes an elastic metal strip 501 and a warning light (not shown in the figure) fixedly installed on the bearing seat 2. The elastic metal strip 501 is arranged in a ring shape and bypasses successively from below the rotating roller 306 and above the cylinder 402. A plurality of connecting blocks 502 are fixedly installed on the surface of the elastic metal strip 501 away from the bearing. The connecting blocks 502 are arranged in a circular array along the elastic metal strip 501. The sizes of the connecting blocks 502 and the grooves 307 are adapted. When the elastic metal strip 501 passes over the rotating roller 306, the connecting blocks 502 and the grooves 307 are in one-to-one correspondence, that is, when the elastic metal strip 501 moves, it drives the connecting blocks 502 to move synchronously. The connecting blocks 502 can achieve the rotation of the rotating roller 306 through the grooves 307. When the rotating roller 306 rotates, the contact between it and the elastic metal strip 501 is not in a state of continuous friction, which can reduce the damage to the elastic metal strip 501. And under the action of the first spring 302, the U-shaped bracket 301 makes the elastic metal strip 501 always closely fit the outer surface of the bearing through the rotating roller 306 and the grooves 307; A plurality of temperature sensors 503 are arranged on the elastic metal strip 501, and the plurality of temperature sensors 503 and the plurality of connecting blocks 502 are arranged in one-to-one correspondence. The warning light and the temperature sensors 503 are electrically connected by wires, and both the warning light and the temperature sensors 503 are connected to an external control terminal through a wireless transmission module. The warning light, the temperature sensors 503, the wireless transmission module and the control terminal are all existing mature technologies and will not be described in detail here; When the bearing rotates with the motor body 1, the generated heat is transferred to the elastic metal strip 501. The temperature sensors 503 on the elastic metal strip 501 are transmitted to the external control terminal through the wireless transmission module. The staff can understand the temperature change of the bearing through the control terminal, and at the same time can judge whether the bearing is in a normal working state according to whether the warning light is working.

[0042] In this embodiment, preferably: The motor body 1 drives the bearing to rotate through the output shaft. The bearing is in close contact with the elastic metal belt 501, driving the elastic metal belt 501 to rotate relative to the rotating roller 306. Since there are connecting blocks 502 and grooves 307, the movement of the elastic metal belt 501 will also drive the rotating roller 306 to rotate. The rotating roller 306 drives the second support rod to rotate. Through the cooperation of structures such as the pulley 304 and the belt, the first support rod 303 can be driven to rotate. The first support rod 303 drives the gear 305 to rotate synchronously. Under the action of the toothed ring 6, finally the second support rod can drive the U-shaped bracket 301 to rotate relative to the toothed ring 6 (bearing). During the movement of the U-shaped bracket 301, through the cooperation of the second support rod and the limiting plate 404, the connecting rod 401 can be driven to move synchronously. The connecting rod 401 cooperates with the roller 403 to move along the inner wall of the bearing seat 2, that is, it also realizes rotation relative to the bearing, so that the distance between the cylinder 402 and the rotating roller 306 does not change, ensuring the normal operation of the elastic metal belt 501. At the same time, the elastic metal belt 501 will also rotate relative to the bearing while moving itself, so that different temperature sensors 503 can contact different positions on the outer surface of the bearing, ensuring better and more accurate temperature data; when the bearing works, the heat generated by it will be transferred to the elastic metal belt 501, and is transmitted to the external control terminal through the temperature sensor 503 on the elastic metal belt 501 and the wireless transmission module. When the temperature is too high, the warning light flashes to prompt the staff that the situation of the bearing is incorrect at this time, and the working state of the bearing needs to be changed to reduce the temperature.

[0043] Through the cooperation of structures such as the toothed ring 6, the rotating roller 306, the connecting block 502 and the limiting plate 404, the elastic metal belt 501 can be driven to move and also to rotate relative to the bearing, so that different temperature sensors 503 can contact different positions on the outer surface of the bearing. Compared with the temperature sensor 503 being fixed and in long-term frictional contact with the bearing for detection, the damage to the temperature sensor 503 and the elastic metal belt 501 is smaller, making the service life of the two longer; at the same time, during the movement of the temperature sensor 503 and the elastic metal belt 501, there will be a situation where different temperature sensors 503 monitor the same position of the bearing. Therefore, data comparison of the same position can be obtained, and then more accurate and comprehensive temperature data can be obtained, and the monitoring effect is better; through the cooperation of structures such as the rotating roller 306, the connecting block 502, the groove 307 and the elastic metal belt 501, when the elastic metal belt 501 moves itself, it can drive the rotating roller 306 to rotate synchronously, so that the frictional contact between the elastic metal belt 501 and the rotating roller 306 is not fixed, further reducing the damage to the elastic metal belt 501 and the temperature sensor 503, and extending the service life of the two, meeting more requirements in actual use.

[0044] As a further improvement of this embodiment: during actual use, as Figure 10 shown, the elastic metal strip 501 can be set in multiple segments, and the connecting block 502 can be set into two identical half-blocks. The two half-blocks are connected in a snap-fit manner, that is, half of the two half-blocks are provided at both ends of each segment of the elastic metal strip 501, and the two metal strips can be connected together through the two half-connecting blocks 502. The snap-fit connection is an existing mature technology and will not be described in detail here.

[0045] Through the multi-segment elastic metal strip 501 and the two-half-set connecting block 502, not only can the effect of driving the rotating roller 306 to rotate in cooperation with the groove 307 in the second embodiment be achieved, but also the rapid installation and disassembly of the multi-segment elastic metal strip 501 can be realized. When one or more temperature sensors 503 at different positions fail and need to be replaced and repaired, the corresponding segment of the elastic metal strip 501 can be quickly disassembled and assembled, and then the corresponding temperature sensor 503 can be quickly overhauled and replaced. Compared with the second embodiment, the practicality in actual use is further improved.

[0046] Embodiment Three:

[0047] Please refer to Figures 1 to 10 , on the basis of the second embodiment, a second spring (not shown in the figure) is provided between the connecting rod 401 and the inner wall of the bearing seat 2. The second spring is provided on the side of the connecting rod 401 close to the bearing. The second spring is not fixedly connected to the connecting rod 401 and the bearing seat 2, and will not affect the rotation of the connecting rod 401, but under the action of the second spring, the connecting rod 401 has a tendency to move away from the bearing.

[0048] In this embodiment, preferably: when the elastic metal strip 501 rotates itself and rotates relative to the bearing under the action of the rotating roller 306 and the cylinder 402, its moving route is from below the rotating roller 306, above the cylinder 402, and then below the next rotating roller 306. Because the second spring is provided, the connecting rod 401 and the cylinder 402 both have a tendency to move away from the bearing, and thus the elastic metal strip 501 can be tensioned, ensuring the tensioning effect of the elastic metal strip 501, enabling it to be properly adapted to the rotating roller 306 and the groove 307, and ensuring the normal operation of the elastic metal strip 501.

[0049] Through the cooperation of structures such as the connecting rod 401, the cylinder 402, and the second spring, continuous tensioning of the elastic metal strip 501 can be achieved, ensuring the normal movement of the elastic metal strip 501 and the normal operation of the temperature sensor 503, effectively improving the detection effect on the bearing, and having stronger applicability.

[0050] The working principle of the present invention is as follows: When in use, the motor body 1 is started. The motor body 1 drives the bearing to rotate through the output shaft. The bearing is in close contact with the elastic metal belt 501, driving the elastic metal belt 501 to rotate relative to the rotating roller 306. Through the cooperation of structures such as the connecting block 502 and the groove 307, the elastic metal belt 501 also drives the rotating roller 306 to rotate. The rotating roller 306 then drives the first support rod 303 to rotate through the cooperation of structures such as the second support rod, the pulley 304, and the belt. The first support rod 303 cooperates with structures such as the gear 305 and the toothed ring 6, and finally drives the U-shaped bracket 301 to rotate relative to the toothed ring 6 (bearing). During the movement of the U-shaped bracket 301, through the cooperation of structures such as the second support rod, the limiting plate 404, and the roller 403, the connecting rod 401 can be made to move along the inner wall of the bearing seat 2, that is, the rotation of the rotating roller 306, the cylinder 402, and the elastic metal belt 501 relative to the bearing is also realized, so that the elastic metal belt 501 rotates relative to the bearing while moving itself; when the bearing is working, its heat is transferred to the elastic metal belt 501 and then transmitted to the external control terminal and the warning light through the temperature sensor 503. When the temperature is too high, the warning light flashes to prompt the staff to maintain the bearing state. Because the first spring 302 is provided, the elastic metal belt 501 can be in close contact with the bearing, ensuring that the elastic metal belt 501 can move as the bearing rotates; because the second spring is provided, the cylinder 402 can effectively tension the elastic metal belt 501, ensuring the normal operation of the elastic metal belt 501 and the temperature sensor 503; at the same time, because the rotating roller 306, the connecting block 502, the groove 307, and the cylinder 402 are provided, different temperature sensors 503 can contact different positions on the outer surface of the bearing, so that the temperature sensor 503 is not fixed at a certain position and continuously rubs against the bearing for data transmission, greatly reducing the damage to the temperature sensor 503, ensuring the normal use of the temperature sensor 503, and more comprehensive and accurate temperature data can also be obtained, effectively improving the monitoring effect of the bearing, and the overall practicality is higher.

Claims

1. A motor bearing status monitoring and early warning device, comprising a mounting seat, a motor body and a bearing seat fixedly connected to the mounting seat, wherein the bearing seat is sleeved on the outside of the bearing of the output shaft of the motor body, It is characterized in that The inner wall of the bearing seat is provided with a placement groove, and a detection component for monitoring the bearing state and a plurality of rotating components movably engaged with the detection component are movably arranged inside the placement groove, and a plurality of connecting components movably engaged with the bearing seat are movably arranged inside the bearing seat, and a plurality of rotating components are connected with a plurality of connecting components in a one-to-one correspondence, and the detection component is annular and passes through each rotating component and connecting component in turn, and a gear ring drivingly connected with the rotating component is fixedly installed inside the bearing seat; The motor body drives the bearing to rotate through the output shaft, the bearing drives the detection component to move relative to the rotating component, the detection component drives the rotating component to rotate, and the rotating component rotates along the gear ring under the action of the gear ring and drives the connecting component to move synchronously; The rotating assembly comprises a U-shaped bracket located inside the placement groove, a first spring is arranged between the surface of the U-shaped bracket and the inner wall of the bearing seat, a first support rod movably connected to the connecting assembly is penetrated and rotatably installed on the surface of the U-shaped bracket, a gear connected to the gear ring is fixedly installed on the end of the first support rod, a second support rod is fixedly installed inside the U-shaped bracket, a synchronous transmission mechanism is arranged between the first support rod and the second support rod, a rotating roller movably engaged with the detection assembly is fixedly installed on the outer surface of the second support rod, and a plurality of grooves are opened on the outer surface of the rotating roller; The connecting assembly includes a connecting rod located inside the bearing seat, a cylinder rotatably mounted on the outer surface of the connecting rod and movably fitted with the detection assembly, a roller movably fitted with the inner wall of the bearing seat is fixedly mounted on the end of the connecting rod, and a limit plate movably connected to the rotating assembly is movably mounted on the outer surface of the connecting rod.

2. The motor bearing status monitoring and early warning device according to claim 1, It is characterized in that The synchronous transmission mechanism is two pulleys, which are respectively fixedly mounted on the outer surfaces of the first support rod and the second support rod, and the two pulleys are driven by a belt.

3. The motor bearing status monitoring and early warning device according to claim 1, It is characterized in that The roller and the gear ring are arranged in parallel, and the size of the roller is larger than the cylinder.

4. The motor bearing status monitoring and early warning device according to claim 1, It is characterized in that The detection component includes an elastic metal belt and a warning light fixedly installed on the bearing seat. The elastic metal belt is ring-shaped and passes through each rotating component and connecting component in sequence. Several connecting blocks are fixedly installed on the surface of the elastic metal belt. The connecting blocks correspond to the positions of the grooves and are adapted in size. A temperature sensor is arranged on the elastic metal belt.

5. The motor bearing status monitoring and early warning device according to claim 4, It is characterized in that There are a plurality of temperature sensors, and the temperature sensors are arranged in a one-to-one correspondence with the connection blocks, and the temperature sensors are electrically connected to the warning lights.

6. The motor bearing status monitoring and early warning device according to claim 4 or 5, It is characterized in that The elastic metal strip is arranged in a multi-segment form, the connecting block is composed of two identical half-blocks, and the two half-blocks of the connecting plate are connected by a snap connection.

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