Intelligent dry separator bearing working condition monitoring device

Abstract

The application relates to the technical field of intelligent dry separators, and discloses a bearing working condition monitoring device of an intelligent dry separator, which is used to solve the problems of bearing damage caused by long-time operation under high temperature and the uniform entry of cooling lubricating oil into the whole bearing. The oil supply device and the rotary joint are arranged, the oil supply pipe of the oil supply device is connected with the oil inlet hole, the oil return pipe of the oil supply device is connected with the inner sealing cover, a temperature sensor is arranged at the connection position of the oil return pipe and the inner sealing cover, the cooling lubricating oil is made to pass through the bearing through the oil supply device, so that the bearing is cooled, the temperature of the discharged cooling lubricating oil is monitored, and the working condition of the bearing is detected; the chute and the sliding plate are arranged on the sealing cover, the extrusion capsules are arranged between the sliding plates, the sealing grooves are arranged on the bearing seat and the sealing cover, the extrusion capsules are communicated with the sealing grooves, the cooling sealing liquid is led into the oil storage groove, the bearing can be uniformly cooled, and the phenomenon that some structures of the bearing cannot be cooled is prevented.

Description

Technical Field

[0001] This application relates to the field of intelligent dry separator technology, and in particular to an intelligent dry separator bearing condition monitoring device. Background Technology

[0002] The intelligent dry separator uses a multi-spectral imaging system combining broadband X-rays and visible light to acquire material characteristics. Then, through intelligent identification methods, it establishes an analysis model adapted to different coal quality characteristics. Finally, it uses big data analysis to digitally identify coal and gangue, and the execution system accurately identifies and sorts coal and gangue.

[0003] Since the sorting operation is a continuous operation, the shaft of the drive roller will continuously rotate in the bearing and bearing housing during the process of conveying coal using belts. During this process, the continuously rotating bearing may generate high temperatures, and bearings operating at high temperatures are very easy to be damaged. Furthermore, the time of failure for bearings operating at high temperatures is uncertain. After a bearing fails, it may be difficult for workers to replace the damaged bearing in time, leading to equipment damage. Summary of the Invention

[0004] This application proposes an intelligent dry separator bearing condition monitoring device, which has the advantages of reducing bearing temperature and monitoring bearing condition, and is used to solve the problem of bearing damage due to long-term operation at high temperature and to ensure that cooling lubricating oil can be evenly distributed throughout the bearing.

[0005] To achieve the above objectives, this application adopts the following technical solution: an intelligent dry separator bearing condition monitoring device, comprising a slide, a bearing housing, and a sealing cover. A bearing is fixedly installed inside the bearing housing, and a drive shaft is fixedly sleeved inside the bearing. An oil supply device is fixedly installed at the top of the slide, and the oil supply device contains cooling lubricating oil. A rotary joint is fixedly sleeved on the outer side of the drive shaft, and one side of the outer ring of the rotary joint is fixedly connected to the inner sealing cover. An oil inlet hole is opened inside the drive shaft, one end of which communicates with the oil outlet of the rotary joint, and the other end of which communicates with the inside of the outer sealing cover. The oil outlet of the oil supply device is connected to the oil inlet of the drive shaft via an oil supply pipe, and the oil inlet of the oil supply device is connected to the inside of the inner sealing cover via an oil return pipe.

[0006] Furthermore, a temperature sensor is fixedly installed at the connection between the oil return pipe and the inner sealing cover. The temperature sensor is used to monitor the temperature of the cooling lubricating oil entering the oil return pipe, and the temperature sensor is connected to the control system of the intelligent dry separator.

[0007] Furthermore, the sealing cover is provided with a groove and a slide plate. The groove is arranged in a ring array on the inner wall of the sealing cover. The slide plate is slidably installed in the groove, and the side extending out of the groove is close to the side end of the bearing. Two adjacent drive slide plates, the sealing cover and the drive shaft form an oil reservoir. A connecting hole is provided on the slide plate inside the inner drive sealing cover.

[0008] Furthermore, the slide plate can only slide along the groove, causing the slide plate to make sealed contact with the sealing cover and the drive shaft.

[0009] Furthermore, the bearing housing is provided with an inner sealing groove, which is located on both sides of the bearing housing; the sealing cover is also provided with an outer sealing groove and a compression bladder, the outer sealing groove is located on the side where the sealing cover connects to the bearing housing, the outer sealing groove and the inner sealing groove form a sealing ring, and a sealing element is provided inside the sealing ring; the compression bladder is fixedly located between two adjacent sliding plates, the compression bladder is filled with silicone adhesive, and the compression bladder is connected to the sealing ring through a connecting pipe.

[0010] Furthermore, the sealing element inside the sealing ring can be bonded to the cured silicone adhesive.

[0011] This application has the following beneficial effects:

[0012] 1. This application provides an intelligent dry separator bearing condition monitoring device, which includes an oil supply device fixedly installed at the top of the slide, a rotary joint fixedly fitted on the drive shaft close to the bearing seat, an oil inlet hole opened inside the drive shaft, an oil supply pipe of the oil supply device connecting the rotary joint and the oil inlet hole, the oil inlet hole leading to the space between the sliding plates of the sealing cover, and a return oil pipe connected to the bottom of the inner sealing cover, which is connected to the oil supply device. During operation, the oil supply device continuously supplies cooling lubricating oil, allowing the lubricating oil to pass through the oil supply pipe, rotary joint, and oil inlet hole into the outer sealing cover, and the cooling lubricating oil to pass through the bearing, enter the inner slide groove, and then enter the return oil pipe from the bottom of the inner slide groove. During this process, the cooling lubricating oil carries away the heat generated by the rotation of the bearing, thereby cooling the bearing and its connecting parts and preventing the bearing from being easily damaged due to prolonged operation at high temperatures.

[0013] 2. The intelligent dry separator bearing condition monitoring device provided in this application has a groove on the side wall of the sealing cover, and a sliding plate is slidably installed in the groove. The other end of the sliding plate is in close contact with the inner side wall of the bearing to form an oil reservoir. Two adjacent sliding plates, the sealing cover and the drive shaft are sealed and fitted together. During operation, the drive shaft rotates continuously, and the cooling lubricating oil introduced from the oil inlet enters each oil reservoir. The cooling lubricating oil in the oil reservoir can only pass through the bearing to enter the inner sealing cover and then be discharged. In this process, the introduced cooling lubricating oil can evenly enter every part of the bearing, so that every part of the bearing can be cooled and prevent the phenomenon that some parts of the bearing structure cannot be cooled by the cooling lubricating oil.

[0014] 3. The intelligent dry separator bearing condition monitoring device provided in this application has bearings on both sides of the bearing housing and an outer sealing groove on the inner side of the sealing cover. The bearings and the outer sealing groove are used in conjunction. An extrusion bladder is provided between two adjacent slide plates. The extrusion bladder is filled with silicone adhesive. The extrusion bladder is connected to the sealing ring formed by the bearing and the outer sealing groove through a connecting pipe. When the sealing cover and the bearing housing become loose due to long-term vibration, the cooling lubricating oil entering the sealing cover provides a certain pressure. The pressure of the cooling lubricating oil causes the silicone adhesive in the extrusion bladder to enter the sealing ring formed by the bearing and the outer sealing groove through the connecting pipe. After the silicone adhesive in the sealing ring cures, it compensates for the gap between the sealing cover and the bearing housing, thereby preventing the leakage of cooling lubricating oil in the bearing housing and the sealing cover.

[0015] 4. The bearing condition monitoring device for an intelligent dry separator provided in this application has a temperature sensor installed at the connection between the oil return pipe and the inner sealing cover. The temperature sensor is connected to the control system of the intelligent dry separator. During operation, the temperature sensor continuously monitors the temperature of the cooling lubricating oil discharged from the bearing housing and the sealing cover. When the temperature of the discharged cooling lubricating oil reaches a high temperature, the control system of the intelligent dry separator starts timing the high temperature time. After the high temperature time exceeds the predetermined time, the control system of the intelligent dry separator issues a reminder to the staff, prompting the staff to replace the bearing. Attached Figure Description

[0016] The accompanying drawings, which form part of this specification, illustrate embodiments disclosed in this application and, together with the specification, serve to explain the principles disclosed in this application.

[0017] This disclosure will become clearer with reference to the accompanying drawings and the following detailed description, wherein:

[0018] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0019] Figure 2 This is a schematic diagram of the connection structure between the slide and the bearing seat of the present invention;

[0020] Figure 3 This is a cross-sectional view of the slide and bearing housing of the present invention;

[0021] Figure 4 This is a cross-sectional view of the bearing housing and sealing cover of the present invention;

[0022] Figure 5 This is a cross-sectional view of the sealing cap of the present invention.

[0023] In the diagram: 1. Support; 2. Drive roller; 3. Slide; 301. Oil supply device; 302. Oil supply pipe; 303. Oil return pipe; 304. Temperature sensor; 4. Bearing housing; 401. Support bearing; 402. Inner sealing groove; 5. Sealing cover; 501. Slide groove; 502. Slide plate; 503. Outer sealing groove; 504. Squeezing bladder; 505. Connecting pipe; 6. Drive shaft; 601. Oil inlet; 7. Feeding device; 8. Belt; 9. Rotary joint. Detailed Implementation

[0024] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this application.

[0025] Example 1

[0026] Please see Figure 1 , Figure 2 and Figure 3 A smart dry separator bearing condition monitoring device includes a bracket 1, a transmission roller 2, a bearing housing 4, a transmission shaft 6, a feeding device 7, and a belt 8. Slide seats 3 are slidably mounted on both sides of the bracket 1. A bearing housing 4 is fixedly mounted on the top of the slide seats 3. A support bearing 401 is fixedly mounted in the middle of the bearing housing 4. Sealing covers 5 are fixedly mounted on both sides of the bearing housing 4. The transmission shaft 6 is fixedly sleeved on the inner ring of the support bearings 401 on both sides. The transmission shaft 6 passes through the inner sealing cover 5. A power device is connected to one side of the transmission shaft 6. A transmission roller 2 is fixedly sleeved in the middle of the transmission shaft 6. A belt 8 for conveying materials is movably sleeved on the outer side of the transmission roller 2. The feeding device 7 is fixedly mounted on the top of the bracket 1.

[0027] Please see Figure 1 , Figure 2 , Figure 3 and Figure 4 An oil supply device 301 is fixedly installed at the top of the slide block 3. The oil supply device 301 contains cooling lubricating oil. A rotary joint 9 is fixedly sleeved on the outside of the drive shaft 6. One side of the outer ring of the rotary joint 9 is fixedly connected to the inner sealing cover 5. The oil inlet of the rotary joint 9 is on the outer ring, and the oil outlet of the rotary joint 9 is on the inner ring. An oil inlet hole 601 is opened inside the drive shaft 6. One end of the oil inlet hole 601 is connected to the oil outlet of the rotary joint 9, and the other end of the oil inlet hole 601 is connected to the inside of the outer sealing cover 5. The oil outlet of the oil supply device 301 is connected to the oil inlet of the drive shaft 6 through the oil supply pipe 302, and the oil inlet of the oil supply device 301 is connected to the inside of the inner sealing cover 5 through the oil return pipe 303.

[0028] A temperature sensor 304 is fixedly installed at the connection between the oil return pipe 303 and the inner sealing cover 5. The temperature sensor 304 is used to monitor the temperature of the cooling lubricating oil entering the oil return pipe 303. The temperature sensor 304 is connected to the control system of the intelligent dry separator.

[0029] When using bolts to fix the bearing housing 4 and the sealing cover 5, a sealing gasket needs to be used on the outside of the sealing cover 5 to seal the bolt holes of the bearing housing 4 and the sealing cover 5.

[0030] The working principle of Embodiment 1 of the present invention is as follows:

[0031] Please see Figure 1 , Figure 2 , Figure 3 and Figure 4 During operation, the power unit drives the drive shaft 6 and drive roller 2 to rotate. The drive roller 2 drives the belt 8 to transmit power. During this process, the oil supply device 301 starts simultaneously. The cooling lubricating oil of the oil supply device 301 enters the outer sealing cover 5 through the oil supply pipe 302, rotary joint 9 and oil inlet 601 in sequence. At this time, the pressure of the cooling lubricating oil in the outer sealing cover 5 increases. The cooling lubricating oil passes through the gap of the support bearing 401 and enters the inner sealing cover 5. The cooling lubricating oil finally returns to the oil supply device 301 through the return oil pipe 303. When the cooling lubricating oil in the outer sealing cover 5 enters the inner sealing cover 5 through the gap of the support bearing 401, the cooling lubricating oil will carry away the heat generated by the rotation of the support bearing 401, thereby cooling the support bearing 401 and preventing the support bearing 401 from overheating and being easily damaged, thus extending the service life of the support bearing 401.

[0032] When the cooling lubricating oil returns to the oil supply device 301 through the return oil pipe 303, the cooling lubricating oil will pass through the temperature sensor 304. The temperature sensor 304 monitors the temperature of the passing cooling lubricating oil and transmits the real-time temperature to the control system of the intelligent dry separator. When the temperature of the discharged cooling lubricating oil is higher than the set temperature, the control system of the intelligent dry separator will time the high temperature time. After the high temperature time exceeds the predetermined time, the control system of the intelligent dry separator will issue a reminder to the staff, prompting the staff to replace the support bearing 401.

[0033] Example 2

[0034] Example 2 is a further improvement based on Example 1.

[0035] Unlike Example 1, please refer to Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5The inner wall of the sealing cover 5 has a series of grooves 501 arranged in a ring. A slide plate 502 is slidably installed in the groove 501. The slide plate 502 extends out of the groove 501 and is closely attached to the side end of the support bearing 401. Two adjacent slide plates 502, the sealing cover 5 and the drive shaft 6 form an oil storage tank. A connecting hole is provided on the slide plate 502 inside the inner sealing cover 5 so that the inner oil storage tank is connected.

[0036] The slide plate 502 can only slide along the slide groove 501, and the slide plate 502 is in sealed contact with the sealing cover 5 and the drive shaft 6. This ensures the sealing of the oil reservoir, so that the cooling lubricating oil entering the sealing reservoir can only flow towards the support bearing 401, thereby cooling the support bearing 401.

[0037] Please see Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5 The bearing housing 4 has inner sealing grooves 402 on both sides, and the sealing cover 5 has an outer sealing groove 503 on the side connected to the bearing housing 4. The inner sealing grooves 402 and the outer sealing grooves 503 form a sealing ring. A sealing element is provided inside the sealing ring. An extrusion bladder 504 is fixed between two adjacent slide plates 502. The extrusion bladder 504 is filled with silicone glue. The extrusion bladder 504 is connected to the sealing ring through a connecting pipe 505.

[0038] The sealing element inside the sealing ring can bond with the cured silicone adhesive. After the silicone adhesive enters the sealing ring, it cures and bonds to the sealing element, thereby increasing the width of the sealing element and enabling it to seal the sealing ring.

[0039] The working principle of Embodiment 2 of the present invention is as follows:

[0040] Please see Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5During operation, the power unit drives the drive shaft 6 and drive roller 2 to rotate, and the drive roller 2 drives the belt 8 to transmit power. During this process, the oil supply device 301 starts simultaneously. The cooling lubricating oil from the oil supply device 301 passes through the oil supply pipe 302, rotary joint 9 and oil inlet 601 in sequence and enters the oil storage tank of the outer sealing cover 5. Since the drive shaft 6 and oil inlet 601 are always rotating, the cooling lubricating oil will enter each oil storage tank evenly. At this time, due to the increased pressure of the cooling lubricating oil in each oil storage tank, the cooling lubricating oil in the oil storage tank will pass through the support bearing 401 and enter the inner oil storage tank. Since the cooling lubricating oil is evenly distributed on the side of the support bearing 401, when the cooling lubricating oil passes through the support bearing 401 to the other side, every part of the support bearing 401 can be cooled by the cooling lubricating oil. This prevents the cooling lubricating oil from only passing through the bottom end of the support bearing 401 due to gravity, thus ensuring the uniformity of cooling of the support bearing 401.

[0041] When the cooling lubricating oil enters the oil reservoir, the pressure inside the reservoir increases. When the bearing housing 4 and the sealing cover 5 vibrate for a long time, and a gap appears between the bearing housing 4 and the sealing cover 5, the compression bladder 504 will be squeezed by the cooling lubricating oil. The silicone adhesive inside the compression bladder 504 is squeezed and enters the sealing ring composed of the inner sealing groove 402 and the outer sealing groove 503 through the connecting pipe 505. After the silicone adhesive in the sealing ring cures, it adheres to the seal, compensating for the gap between the sealing cover 5 and the bearing housing 4, thereby preventing the cooling lubricating oil in the bearing housing 4 and the sealing cover 5 from leaking.

Claims

1. A smart dry separator bearing condition monitoring device, comprising a slide (3), a bearing housing (4), and a sealing cover (5), wherein a support bearing (401) is fixedly installed inside the bearing housing (4), and a transmission shaft (6) is fixedly sleeved inside the support bearing (401), characterized in that: An oil supply device (301) is fixedly installed at the top of the slide (3), and the oil supply device (301) contains cooling lubricating oil. A rotary joint (9) is fixedly sleeved on the outer side of the drive shaft (6), and one side of the outer ring of the rotary joint (9) is fixedly connected to the inner sealing cover (5). The transmission shaft (6) has an oil inlet hole (601) inside. One end of the oil inlet hole (601) is connected to the oil outlet of the rotary joint (9), and the other end of the oil inlet hole (601) is connected to the inside of the outer sealing cover (5). The oil outlet of the oil supply device (301) is connected to the oil inlet of the drive shaft (6) through the oil supply pipe (302), and the oil inlet of the oil supply device (301) is connected to the inside of the inner sealing cover (5) through the oil return pipe (303). The bearing housing (4) is provided with: The inner sealing groove (402) is provided on both sides of the bearing housing (4); The sealing cap (5) is provided with: The groove (501) is arranged in a ring array on the inner wall of the sealing cover (5); The slide plate (502) is slidably installed in the slide groove (501), and the side extending out of the slide groove (501) is closely attached to the side end of the support bearing (401); The two adjacent drive slides (502), sealing cover (5) and drive shaft (6) form an oil reservoir, and a connecting hole is provided on the slide (502) inside the inner drive sealing cover (5); An outer sealing groove (503) is provided on the side where the sealing cover (5) connects to the bearing seat (4). The outer sealing groove (503) and the inner sealing groove (402) form a sealing ring, and a sealing element is provided inside the sealing ring. A compression bladder (504) is fixedly disposed between two adjacent slide plates (502). The compression bladder (504) is filled with silicone glue and is connected to a sealing ring through a connecting tube (505). The sealing element inside the sealing ring can be bonded to the cured silicone adhesive.

2. The intelligent dry separator bearing condition monitoring device according to claim 1, characterized in that, A temperature sensor (304) is fixedly installed at the connection between the return oil pipe (303) and the inner sealing cover (5). The temperature sensor (304) is used to monitor the temperature of the cooling lubricating oil entering the return oil pipe (303). The temperature sensor (304) is connected to the control system of the intelligent dry separator.

3. The intelligent dry separator bearing condition monitoring device according to claim 1, characterized in that, The slide plate (502) can only slide along the slide groove (501), causing the slide plate (502) to make sealed contact with the sealing cover (5) and the drive shaft (6).

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