Sealing device for bearing

Abstract

The utility model provides a sealing device for a bearing, which relates to the technical field of bearings, and comprises a first sealing shell and a second sealing shell, warning components with the same size are arranged in the first sealing shell and the second sealing shell, each warning component comprises a baffle, and an annular sponge body is arranged at one end of each baffle. The racks on the first sealing shell and the second sealing shell are correspondingly arranged, so that the first sealing shell and the second sealing shell are effectively prevented from shaking, small gaps are generated, internal lubricating oil flows out and is absorbed by the annular sponge body, and the annular sponge body gradually becomes larger along with continuous absorption of the annular sponge body; and after the pressure reaches a certain value, the inductor fixedly connected with the bottom end of the baffle is in complete contact with the induction connecting port, and an alarm is given out, so that the sealing ring can be replaced in time, the sealing effect is improved, the internal structure is protected, and the service life of the sealing device is prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of bearings, in particular to a sealing device for bearings. Background Art

[0002] Bearings are an important component in modern mechanical equipment. Their main function is to support mechanical rotating bodies, reduce the friction coefficient during their movement, and ensure their rotation accuracy. Deep groove ball bearings are a widely used rolling bearing, mainly used to bear radial loads and axial loads. Due to their simple structure, deep groove ball bearings generate less friction resistance during operation, which can effectively reduce energy loss. Deep groove ball bearings are suitable for high-speed working conditions and can operate stably at extremely high speeds. In addition to bearing radial loads, deep groove ball bearings can also bear axial loads and are suitable for a variety of complex working conditions.

[0003] In the prior art, the utility model with application number CN217440602U provides an upper connecting end, a lower connecting end, an upper protective shell, a lower protective shell and a sealing ring, wherein the upper connecting end is installed on the inner side of the upper end of the bearing body; the lower connecting end is installed on the outer side of the lower end of the bearing body; the upper protective shell is installed at the top of the upper connecting end and contacts the outer side of the top of the bearing body; the lower protective shell is installed on the outer side of the lower connecting end, and the inner side of the lower protective shell fits the outer side of the lower end of the upper protective shell; a sealing ring is provided at the connection between the lower protective shell and the lower connecting end; the utility model completes the sealing of the bearing body by the device through this structure, effectively avoids the intrusion of water vapor into the interior of the bearing body, and improves the service life of the bearing body.

[0004] However, during the actual production and processing process, the applicant found that during the use of the bearings, since the bearing speeds used in different machines are different, the degree of wear on the sealing rings is also very different. This results in the sealing rings installed in some high-speed bearings being unable to be replaced in a timely manner, resulting in internal lubricating oil leakage and damage to the device. For this reason, the present application provides a sealing device for bearings. Utility Model Content

[0005] The purpose of the utility model is to solve the shortcomings of the prior art and provide a sealing device for a bearing.

[0006] In order to achieve the above-mentioned purpose, the present invention adopts the following technical solutions: a sealing device for a bearing, comprising a first sealing shell and a second sealing shell, wherein the first sealing shell and the second sealing shell are provided with sealing warning components of the same size, the sealing warning component comprises a baffle, an annular sponge is provided at one end of the baffle, a spring and a sensor are provided on the other end of the baffle, the interface parts of the first sealing shell and the second sealing shell are staggered and connected, the first sealing shell and the second sealing shell are provided with a sensing connection port corresponding to the position of the sensor, the first sealing shell and the second sealing shell are provided with a placement groove adapted to the sealing warning component, and the first sealing shell, the second sealing shell and the bearing assembly are fixedly connected by a second bolt.

[0007] As a preferred embodiment, a bearing assembly is arranged between the first sealing housing and the second sealing housing, the bearing assembly includes an outer ring, a deep groove ball is provided on the inner circumference of the outer ring, the other end of the deep groove ball is movably connected to the inner ring, a retaining frame is provided on the deep groove ball, a first bolt provided on the retaining frame fixedly connects two adjacent deep groove balls through the inner ring, a first sealing ring is provided on the inner ring, and a second sealing ring and a third sealing ring are provided on the outer ring, and grooves compatible with the first sealing ring, the second sealing ring and the third sealing ring are provided on the first sealing housing, the second sealing housing, the outer ring and the inner ring.

[0008] The technical effect of adopting the above further scheme is: during the operation, the bearing assembly mounted on the parts rotates at high speed, and the super-strong centrifugal force causes the internal lubricating oil to seep out through the tiny gaps between the components, and the first sealing ring, second sealing ring and third sealing ring arranged between the first sealing shell, the second sealing shell and the outer ring and the inner ring can effectively prevent the leakage of lubricating oil, improve the sealing performance of the device, extend the service life of the device, reduce the consumption of lubricating oil, ensure the normal operation of the equipment, and avoid equipment failure and damage due to insufficient lubrication.

[0009] Compared with the prior art, the advantages and positive effects of the present invention are:

[0010] By setting up a sealing warning component, during installation, the racks on the first sealing shell and the second sealing shell are placed correspondingly, so that during operation, even if the bearing is subjected to a large force, it can effectively prevent the first sealing shell and the second sealing shell from shaking, thereby generating a small gap, causing the internal lubricating oil to flow out, and destroying the sealing effect of the device. However, after a long period of use, the first sealing ring, the second sealing ring and the third sealing ring will inevitably be damaged due to friction, resulting in leakage of internal lubricating oil. At this time, the annular sponge placed on the second sealing shell can absorb the leaked lubricating oil. As the annular sponge continues to absorb, the annular sponge begins to gradually grow larger and exerts downward pressure on the baffle. When the pressure reaches a certain value, the sensor fixedly connected to the bottom end of the baffle is fully in contact with the sensing connection port, issuing a warning to the user so that the first sealing ring, the second sealing ring and the third sealing ring can be replaced in time, thereby improving the sealing effect, protecting the internal structure and extending the service life of the sealing device. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 A structural schematic diagram of a sealing device for a bearing provided by the present invention;

[0012] Figure 2 This is a disassembly diagram of a sealing device for a bearing provided by the utility model;

[0013] Figure 3 This is a disassembled diagram of the second sealing housing of a sealing device for a bearing provided by the present invention;

[0014] Figure 4 This is a structural schematic diagram of a sealing warning assembly of a sealing device for a bearing provided by the utility model.

[0015] Legend:

[0016] 1. First sealed housing; 2. Second sealed housing;

[0017] 3. Bearing assembly; 31. Outer ring; 32. Deep groove ball; 33. Cage; 34. First bolt; 35. Inner ring;

[0018] 4. Sealing warning assembly; 41. Annular sponge; 42. Baffle; 43. Spring; 44. Sensor;

[0019] 5. Induction connection port; 6. First sealing ring; 7. Second sealing ring; 8. Third sealing ring; 9. Second bolt. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0021] Example 1

[0022] like Figure 1-Figure 4 As shown, this embodiment provides a technical solution: a sealing device for a bearing, comprising a first sealing shell 1 and a second sealing shell 2, wherein the first sealing shell 1 and the second sealing shell 2 are provided with a sealing warning component 4 of the same size, the sealing warning component 4 comprises a baffle 42, one end of the baffle 42 is provided with an annular sponge 41, and the other end of the baffle 42 is surrounded by a spring 43 and a sensor 44, the first sealing shell 1 and the second sealing shell 2 interface are partially staggered and connected, the first sealing shell 1 and the second sealing shell 2 are surrounded by a sensing connection port 5 corresponding to the position of the sensor 44, the first sealing shell 1 and the second sealing shell 2 are provided with a placement groove adapted to the sealing warning component 4, the first sealing shell 1, the second sealing shell 2 and the bearing assembly 3 are fixedly connected by a second bolt 9, and during installation, the racks on the first sealing shell 1 and the second sealing shell 2 are placed correspondingly, so that the bearing can be kept in a stable state during operation despite being affected by the pressure. A large force can also effectively prevent the first sealing shell 1 and the second sealing shell 2 from shaking, thereby generating small gaps, causing the internal lubricating oil to flow out and destroying the sealing effect of the device. However, after a long period of use, the first sealing ring 6, the second sealing ring 7 and the third sealing ring 8 are inevitably damaged due to friction, resulting in the leakage of internal lubricating oil. At this time, the annular sponge 41 placed on the second sealing shell 2 can absorb the leaked lubricating oil. As the annular sponge 41 continues to absorb, the annular sponge 41 begins to gradually become larger and exerts downward pressure on the baffle 42. When the pressure reaches a certain value, the sensor 44 fixedly connected to the bottom end of the baffle 42 is fully in contact with the sensing connection port 5, issuing a warning to the user so that the first sealing ring 6, the second sealing ring 7 and the third sealing ring 8 can be replaced in time to improve the sealing effect, protect the internal structure and extend the service life of the sealing device.

[0023] Example 2

[0024] like Figure 1-Figure 2As shown, this embodiment provides a technical solution: a sealing device for a bearing, a bearing assembly 3 is arranged between a first sealing housing 1 and a second sealing housing 2, the bearing assembly 3 includes an outer ring 31, a deep groove ball 32 is arranged on the inner periphery of the outer ring 31, the other end of the deep groove ball 32 is movably connected to the inner ring 35, a retainer 33 is provided on the deep groove ball 32, a first bolt 34 provided on the retainer 33 fixes two adjacent deep groove balls 32 through the inner ring 35, a first sealing ring 6 is provided on the inner ring 35, a second sealing ring 7 and a third sealing ring 8 are provided on the outer ring 31, the first sealing housing 1, the second sealing housing 2, the outer ring 31, the inner ring 3 5 is provided with grooves adapted to the first sealing ring 6, the second sealing ring 7, and the third sealing ring 8. During operation, the bearing assembly 3 sleeved on the part rotates at high speed, and the super-strong centrifugal force causes the internal lubricating oil to seep out through the tiny gaps between the components. The first sealing ring 6, the second sealing ring 7, and the third sealing ring 8 arranged between the first sealing shell 1, the second sealing shell 2 and the outer ring 31 and the inner ring 35 can effectively prevent the leakage of lubricating oil, improve the sealing performance of the device, extend the service life of the device, reduce the consumption of lubricating oil, ensure the normal operation of the equipment, and avoid equipment failure and damage caused by insufficient lubrication.

[0025] How it works

[0026] like Figure 1-4As shown: during installation: the racks on the first sealing shell 1 and the second sealing shell 2 are placed correspondingly, so that during the operation of the bearing, although it is subjected to a large force, it can effectively prevent the first sealing shell 1 and the second sealing shell 2 from shaking, thereby generating a small gap, causing the internal lubricating oil to flow out and destroying the sealing effect of the device. However, after a long period of use, the first sealing ring 6, the second sealing ring 7 and the third sealing ring 8 will inevitably be damaged due to friction, resulting in the leakage of internal lubricating oil. At this time, the annular sponge 41 placed on the second sealing shell 2 can absorb the leaked lubricating oil. As the annular sponge 41 continues to absorb, the annular sponge 41 begins to gradually increase and exerts downward pressure on the baffle 42. When the pressure reaches a certain value, the bottom end of the baffle 42 is fixedly connected The connected sensor 44 is in full contact with the sensing connection port 5, and a warning is issued to the user so that the first sealing ring 6, the second sealing ring 7, and the third sealing ring 8 can be replaced in time to improve the sealing effect, protect the internal structure, and extend the service life of the sealing device. During operation, the bearing assembly 3 sleeved on the part rotates at high speed, and the super-strong centrifugal force causes the internal lubricating oil to seep out through the tiny gaps between the components. The first sealing ring 6, the second sealing ring 7 and the third sealing ring 8 arranged between the first sealing shell 1, the second sealing shell 2 and the outer ring 31 and the inner ring 35 can effectively prevent the leakage of lubricating oil, improve the sealing performance of the device, extend the service life of the device, reduce the consumption of lubricating oil, ensure the normal operation of the equipment, and avoid equipment failure and damage due to insufficient lubrication.

[0027] The above description is only a preferred embodiment of the present invention and does not limit the present invention in any other form. Any technician familiar with the profession may use the technical content disclosed above to change or modify it into an equivalent embodiment with equivalent changes for application in other fields. However, any simple modification, equivalent change and modification of the above embodiment made according to the technical essence of the present invention without departing from the content of the technical solution of the present invention shall still fall within the scope of protection of the technical solution of the present invention.

Claims

1. A sealing device for a bearing, comprising a first sealing housing (1) and a second sealing housing (2), characterized in that: A sealing warning assembly (4) of the same size is provided in the first sealing shell (1) and the second sealing shell (2), and the sealing warning assembly (4) comprises a baffle (42), one end of the baffle (42) is provided with an annular sponge (41), and the other end of the baffle (42) is provided with a spring (43) and a sensor (44).

2. A sealing device for a bearing according to claim 1, characterized in that: The first sealed housing (1) and the second sealed housing (2) are connected at interface portions that are staggered.

3. A sealing device for a bearing according to claim 1, characterized in that: A bearing assembly (3) is provided between the first sealed housing (1) and the second sealed housing (2), the bearing assembly (3) comprising an outer ring (31), a deep groove ball (32) being provided on the inner periphery of the outer ring (31), and an inner ring (35) being movably connected to the other end of the deep groove ball (32).

4. A sealing device for a bearing according to claim 3, characterized in that: A retaining frame (33) is provided on the deep groove ball (32), and a first bolt (34) provided on the retaining frame (33) fixedly connects two adjacent deep groove balls (32) through an inner ring (35).

5. A sealing device for a bearing according to claim 4, characterized in that: The inner ring (35) is provided with a first sealing ring (6), the outer ring (31) is provided with a second sealing ring (7) and a third sealing ring (8), and the first sealing shell (1), the second sealing shell (2), the outer ring (31), and the inner ring (35) are provided with grooves adapted to the first sealing ring (6), the second sealing ring (7), and the third sealing ring (8).

6. A sealing device for a bearing according to claim 1, characterized in that: The first sealing housing (1), the second sealing housing (2) and the bearing assembly (3) are fixedly connected via a second bolt (9).

7. The sealing device for a bearing according to claim 1, characterized in that: The first sealed shell (1) and the second sealed shell (2) are provided with a sensing connection port (5) corresponding to the position of the sensor (44), and the first sealed shell (1) and the second sealed shell (2) are provided with a placement groove adapted to the sealing warning component (4).

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