Bearing abnormality detection device inside slurry mixing tank

Abstract

This utility model relates to a bearing anomaly detection device inside a slurry mixing tank, belonging to the field of mixing detection, and is used to detect bearing anomalies inside a mixing tank. It includes a base, a top cover, a power supply, and a detection unit. A probe countersunk hole is located at the center of the inner side of the base, and an induction stud is located on the outer side, with the induction stud aligned with the probe countersunk hole. The detection unit includes a base plate and a temperature sensor, a vibration sensor, a detection probe, and a signal transmission antenna mounted on the base plate. The base plate is fixed to the base, and the detection probe of the temperature sensor is installed in the probe countersunk hole. The power supply provides the necessary electrical energy for the detection unit to operate. The induction stud is rigidly connected to the bearing housing of the bearing being tested. The temperature sensor collects the bearing's temperature data, and the vibration sensor collects the bearing's temperature and vibration data through the induction stud. By comparing the normal and abnormal bearing data, it is determined whether the bearing is abnormal, and thus provides an early warning of bearing anomalies.

Description

Technical Field

[0001] This utility model belongs to the field of mixing detection, specifically a bearing abnormality detection device inside a slurry mixing tank. Background Technology

[0002] The mixing cost of some valuable material slurries is very high. For example, the cost of mixing a single tank of lithium battery slurry can reach tens of thousands of RMB. The failure of a single bearing inside the mixing tank can destroy the entire tank of lithium battery material and damage other components, leading to increased production costs. If early warnings could be issued and appropriate measures taken before bearing malfunctions, the losses caused by bearing damage could be reduced. However, currently there is no dedicated device for detecting bearing malfunctions inside mixing tanks. Utility Model Content

[0003] The purpose of this invention is to provide a bearing abnormality detection device inside a slurry mixing tank, which is used to detect bearing abnormalities inside the mixing tank and to provide an early warning function.

[0004] The technical solution adopted in this utility model is: a bearing abnormality detection device inside a slurry mixing tank, including a base, a top cover, a power supply, and a detection unit; the top cover covers the base, and the top cover and the base are sealed together to form a cavity, and the detection unit and the power supply are both set in the cavity formed by the top cover and the base; a probe countersunk hole is set at the center of the inner side of the base, and an induction stud is set on the outer side, and the induction stud is aligned with the probe countersunk hole; the detection unit includes a base plate and a temperature sensor, a vibration sensor, a detection probe, and a signal transmission antenna mounted on the base plate; the power supply includes a heat-insulating shell and a battery inside the heat-insulating shell, and the battery is sealed with sealing glue; the base plate is fixed on the base, and the detection probe of the temperature sensor is installed in the probe countersunk hole to collect the temperature data of the induction stud; the vibration sensor collects the vibration data of the induction stud; the heat-insulating shell of the power supply is fixed inside the top cover, and the battery of the power supply is connected to the detection unit to provide the power required for the operation of the detection unit.

[0005] Furthermore, the upper cover includes a top and sidewalls, with inwardly protruding guide protrusions at the four corners of the sidewalls, the guide protrusions extending vertically; and inwardly recessed notches at the four corners of the heat insulation shell, the notches penetrating vertically through the heat insulation shell; the notches of the heat insulation shell are inserted into the guide protrusions of the upper cover sidewalls.

[0006] Furthermore, a slot is provided around the top of the cover, and the top of the heat insulation shell is inserted into the slot.

[0007] Furthermore, a sealing ring is provided at the joint between the top cover and the base to seal the joint between the top cover and the base.

[0008] Furthermore, the inner side of the base plate of the base is provided with a circumferentially closed limiting platform, and the inner wall of the limiting platform is provided with a detection unit fixing hole. The base plate of the power supply is supported on the limiting platform, and the power supply is fixed to the base by fastening screws passing through the through holes on the base plate and screwing into the detection unit fixing hole; the bottom of the power supply is supported on the limiting platform.

[0009] Furthermore, a sealing groove is provided on the inner side of the base plate, and the sealing groove is set against the outer periphery of the limiting platform, and the sealing ring is snapped into the sealing groove.

[0010] Furthermore, the upper cover and the base are connected by an external threaded post, and the external threaded post and the base are made of 304 or 316 stainless steel; the gasket on the external threaded post is made of polytetrafluoroethylene.

[0011] Furthermore, the top cover is made of boron nitride ceramic or polytetrafluoroethylene material.

[0012] Furthermore, the detection probe is fixed to the inner wall of the probe countersunk hole using silicone.

[0013] The beneficial effects of this utility model are as follows: The bearing abnormality detection device inside the slurry mixing tank disclosed in this utility model uses an induction stud rigidly connected to the bearing seat of the bearing being tested. The detection probe of the temperature sensor is installed in the probe countersunk hole aligned with the induction stud, allowing the temperature sensor to collect the bearing's temperature data. The vibration sensor collects the bearing's temperature and vibration data through the induction stud, compares this data with normal and abnormal bearing data, determines whether the bearing is abnormal, and then issues an early warning for bearing abnormalities. This warning is transmitted wirelessly to the terminal for monitoring, coordinating with the mixer's control program to promptly stop the machine or handle abnormalities, preventing losses caused by bearing damage.

[0014] By placing the battery inside the heat-insulating shell to form a power source, heat is prevented from being transferred to the interior and affecting the battery's operation. The battery is sealed with a sealing compound to prevent slurry from entering the battery, ensuring reliable power supply in slurry environments and ensuring normal operation of the device.

[0015] The power supply, detection unit, and base are compactly assembled to achieve miniaturized embedded installation, avoiding any impact on the internal flow field of the mixing tank. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the bearing abnormality detection device inside the slurry mixing tank disclosed in this utility model;

[0017] Figure 2 This is an exploded view of the bearing abnormality detection device inside the slurry mixing tank disclosed in this utility model;

[0018] Figure 3 This is a schematic diagram showing the connection between the power supply and the top cover.

[0019] Figure 4 This is a schematic diagram of the base structure;

[0020] Figure 5 This is a schematic diagram of the upper cover structure;

[0021] Figure 6 This is a schematic diagram of the bearing abnormality detection device inside the slurry mixing tank disclosed in this utility model being installed in the bearing seat inside the mixing tank.

[0022] In the figure, the components are: base 1, probe countersunk hole 11, sensing stud 12, limiting stage 13, detection unit fixing hole 14, sealing groove 15, detection unit 2, substrate 21, temperature sensor 22, detection probe 220, vibration sensor 23, signal transmission antenna 24, power supply 3, power connector 30, heat insulation shell 31, notch 310, battery 32, top cover 4, top cover 41, slot 410, side wall 42, guide protrusion 420, external threaded post 5, washer 6, sealing ring 7, fastening screw 8, and bearing seat 9. Detailed Implementation

[0023] The present invention will be further described below with reference to the accompanying drawings and embodiments:

[0024] In this utility model, the terms "inner," "top," "bottom," "lateral," and "longitudinal," etc., indicate the orientation or positional relationship based on the appendix. Figure 1 The orientation or positional relationship shown is for the purpose of describing the present invention only, and is not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present invention.

[0025] Although the present invention has been described herein with reference to embodiments, the above embodiments are only general implementations of the present invention, and the implementation of the present invention is not limited to the above embodiments. It should be understood that any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

[0026] A bearing malfunction detection device inside the slurry mixing tank, such as... Figure 1 , Figure 2 and Figure 4 As shown, it includes a base 1, a top cover 4, a power supply 3, and a detection unit 2;

[0027] The upper cover 4 covers the base 1, and the upper cover 4 and the base 1 are sealed together to form a cavity. The detection unit 2 and the power supply 3 are both disposed within the cavity formed by the upper cover 4 and the base 1. The upper cover 4 and the base 1 form a sealed outer shell that surrounds the detection unit 2 and the power supply 3, isolating the slurry and preventing the slurry from directly contacting the detection unit 2 and the power supply 3, thus protecting the detection unit 2 and the power supply 3.

[0028] A probe countersunk hole 11 is provided at the center of the inner side of the base 1, and an induction stud 12 is provided on the outer side, with the induction stud 12 aligned with the probe countersunk hole 11. Figure 6 As shown, the sensing stud 12 is rigidly connected to the bearing housing 9 of the bearing being tested. The detection unit 2 includes a base plate 21 and a temperature sensor 22, a vibration sensor 23, a detection probe 220, and a signal transmission antenna 24 mounted on the base plate 21.

[0029] Since the sensing stud 12 is rigidly connected to the bearing housing 9 of the bearing being tested, the bearing temperature is directly transmitted to the sensing stud 12 through the bearing housing 9. The detection probe 220 of the temperature sensor 22 is installed in the probe countersunk hole 11 aligned with the sensing stud 12, allowing the detection probe 220 to directly detect the temperature of the sensing stud 12, thus enabling the temperature sensor 22 to collect the bearing temperature data. Because the sensing stud 12 is rigidly connected to the bearing housing, the vibration of the bearing housing is sensed by the vibration sensor 23. The temperature sensor 22 and the vibration sensor 23 collect the bearing temperature and vibration data through the sensing stud 12, compare this data with normal and abnormal bearing data to determine if the bearing is abnormal, and then issue an early warning for any abnormalities. This warning is then transmitted wirelessly to the terminal via the signal transmission antenna 24 for monitoring, coordinating with the mixer's control program to promptly stop the machine or handle any abnormalities, preventing losses due to bearing damage.

[0030] To prevent heat transfer to the interior and affect the operation of the battery 32, in this embodiment, the power source 3 includes a heat-insulating shell 31 and a battery 32 inside the heat-insulating shell 31, and the battery 32 is sealed with sealing adhesive. The heat-insulating shell 31 serves to insulate and protect the battery 32. The sealing adhesive of the battery 32 provides waterproofing.

[0031] The substrate 21 is fixed on the base 1, and the detection probe 220 of the temperature sensor 22 is installed in the probe countersunk hole 11; the heat insulation shell 31 of the power supply 3 is fixed in the upper cover 4, and the battery 32 of the power supply 3 is connected to the detection unit 2 to provide the power required for the operation of the detection unit 2.

[0032] The power supply 3, detection unit 2 and base 1 are compactly assembled to achieve miniaturized embedded installation and avoid affecting the internal flow field of the mixing tank.

[0033] To fix the position of power supply 3, prevent battery displacement under vibration conditions, and avoid measurement deviation caused by battery displacement, preferably, as follows: Figure 5 As shown, the upper cover 4 includes a top 41 and side walls 42. The top 41 and side walls 42 can be a single piece or separate structures connected in a sealed manner. Inwardly protruding guide protrusions 420 are provided at the four corners of the side walls 42, extending vertically. Inwardly recessed notches 310 are provided at the four corners of the heat insulation shell 31, penetrating vertically through the heat insulation shell 31. The notches 310 of the heat insulation shell 31 are inserted into the guide protrusions 420 of the side walls 42 of the upper cover 4.

[0034] like Figure 3 As shown, a slot 410 is provided around the inside of the top 41 of the upper cover 4, and the top of the heat insulation shell 31 is inserted into the slot 410. The slot 410 is inserted into the heat insulation shell 31, and the power supply 3 is fixed at the top, further improving the reliability of the limiting position.

[0035] In order to form a seal between the upper cover 4 and the base 1 and prevent the slurry from corroding, a sealing ring 7 is provided at the joint between the upper cover 4 and the base 1 to seal the joint between the upper cover 4 and the base 1.

[0036] The base 1 has a closed limiting platform 13 on its inner side. The inner wall of the limiting platform 13 has a detection unit fixing hole 14. The base plate 21 of the power supply 3 is supported on the limiting platform 13, and a fastening screw 8 is screwed into the detection unit fixing hole 14 through a through hole in the base plate 21 to fix the power supply 3 to the base 1. The bottom of the power supply 3 is supported on the limiting platform 13. The limiting platform 13 supports the power supply 3 from the bottom. Combined with the insertion slot 410 at the top of the heat insulation shell 31, and the notch 310 and guide protrusion 420 of the heat insulation shell 31 providing triple limiting, the power supply 3 is stably confined within the cavity formed by the top cover 4 and the base 1. The limiting platform 13 ensures that the bottom of the power supply 3, the inner wall of the limiting platform 13, and the inner side of the base 1 surround a space sufficient to accommodate the detection unit 2, preventing the power supply 3 from squeezing the detection unit 2 and causing damage.

[0037] To ensure sealing performance, a sealing groove 15 is provided on the inner side of the base plate of the base 1, and the sealing groove 15 is set against the outer periphery of the limiting platform 13, and the sealing ring 7 is snapped into the sealing groove 15.

[0038] Preferably, the upper cover 4 and the base 1 are connected by an external threaded post 5, and the external threaded post 5 and the base 1 are made of 304 or 316 stainless steel; the washer 6 on the external threaded post 5 is made of polytetrafluoroethylene.

[0039] 304 or 316 stainless steel has high yield strength, which can withstand the vibration and impact of the agitator shaft. It is also highly resistant to lithium battery slurry corrosion, which helps to extend its service life.

[0040] The top cover 4 is made of boron nitride ceramic or polytetrafluoroethylene. The dielectric constant of the ceramic is ≤3.0, and that of the polytetrafluoroethylene is ≤2.1, which greatly reduces the penetration loss of wireless signals. Furthermore, the top cover 4 made of this material can withstand high temperatures of 200℃ and is resistant to hydrofluoric acid corrosion, making it well-suited for lithium battery slurry environments.

[0041] The detection probe 220 is fixed to the inner wall of the probe countersunk hole 11 by silicone. The silicone has a damping coefficient of 0.15~0.35, which can filter out some high-frequency mechanical noise from slurry stirring. In addition, the silicone has a large elongation, which can adapt to the thermal deformation of the base and reduce the risk of probe detachment.

[0042] In this embodiment, the detection unit 2 is connected to an external terminal via wireless transmission. This configuration eliminates the need for wiring through openings in the tank, thus preventing the risk of slurry leakage; and by transmitting bearing data to the terminal in real time via wireless transmission, the response time for triggering the shutdown procedure is short.

Claims

1. An abnormality detection device for a shaft bearing in a slurry stirring tank, characterized by: It includes a base (1), a top cover (4), a power supply (3), and a detection unit (2); The upper cover (4) covers the base (1), and the upper cover (4) and the base (1) are sealed together and form a cavity. The detection unit (2) and the power supply (3) are both located in the cavity formed by the upper cover (4) and the base (1). The base (1) has a probe countersunk hole (11) at the center of its inner side and an induction stud (12) on its outer side, with the induction stud (12) aligned with the probe countersunk hole (11). The detection unit (2) includes a substrate (21) and a temperature sensor (22), a vibration sensor (23) and a signal transmission antenna (24) mounted on the substrate (21). The power source (3) includes a heat-insulating shell (31) and a battery (32) inside the heat-insulating shell (31), the battery (32) being sealed with a can sealant; The substrate (21) is fixed on the base (1), and the detection probe (220) of the temperature sensor (22) is installed in the probe countersunk hole (11) to collect the temperature data of the sensing stud (12); the vibration sensor (23) collects the vibration data of the sensing stud (12); the heat insulation shell (31) of the power supply (3) is fixed in the top cover (4), and the battery (32) of the power supply (3) is connected to the detection unit (2) to provide the power required for the detection unit (2) to work.

2. The abnormality detection device for a slurry mixing tank inner bearing according to claim 1, characterized in that: The top cover (4) includes a top (41) and a side wall (42). There are inwardly protruding guide protrusions (420) at the four corners of the side wall (42), and the guide protrusions (420) extend vertically. There are inwardly recessed notches (310) at the four corners of the heat insulation shell (31), and the notches (310) penetrate the heat insulation shell (31) vertically. The notches (310) of the heat insulation shell (31) are inserted into the guide protrusions (420) of the side wall (42) of the top cover (4).

3. The abnormality detecting device for a slurry mixing tank inner bearing according to claim 2, characterized in that: A slot (410) is provided around the inside of the top (41) of the cover (4), and the top of the heat insulation shell (31) is inserted into the slot (410).

4. The abnormality detection device for a slurry mixing tank inner bearing according to claim 1, characterized in that: A sealing ring (7) is provided at the joint between the upper cover (4) and the base (1) to seal the joint between the upper cover (4) and the base (1).

5. The abnormality detecting device for a slurry mixing tank inner bearing according to claim 4, characterized in that: The base (1) has a closed limiting platform (13) on the inner side of the bottom plate. The inner wall of the limiting platform (13) has a detection unit fixing hole (14). The base plate (21) of the power supply (3) is supported on the limiting platform (13), and the power supply (3) is fixed to the base (1) by fastening screws (8) through the through holes on the base plate (21) and screwed into the detection unit fixing hole (14). The bottom of the power supply (3) is supported on the limiting platform (13).

6. The abnormality detecting device for a slurry mixing tank inner bearing according to claim 5, characterized in that: A sealing groove (15) is provided on the inner side of the base plate of the base (1), and the sealing groove (15) is provided on the outer periphery of the limiting platform (13), and the sealing ring (7) is snapped into the sealing groove (15).

7. The abnormality detecting device for a shaft bearing in a slurry mixing tank according to any one of claims 1 to 6, characterized in that: The upper cover (4) and the base (1) are connected by an external threaded post (5), and the external threaded post (5) and the base (1) are made of 304 or 316 stainless steel; the gasket (6) on the external threaded post (5) is made of polytetrafluoroethylene.

8. The abnormality detecting device for a shaft bearing in a slurry mixing tank according to any one of claims 1 to 6, characterized in that: The top cover (4) is made of boron nitride ceramic or polytetrafluoroethylene material.

9. The bearing abnormality detection device inside the slurry mixing tank as described in any one of claims 1-6, characterized in that: The detection probe (220) is fixed to the inner wall of the probe countersunk hole (11) with silicone.

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