Bearing with anti-slip and anti-drop sealing element

Abstract

The bearing comprises an outer ring, an inner ring and a rolling body movably arranged between the outer ring and the inner ring, sealing structures are arranged on the two sides of the rolling body respectively, and each sealing structure comprises two sealing rings arranged on the inner circumferential wall of the outer ring and the outer circumferential wall of the inner ring respectively. The two sealing rings are both provided with adjusting pieces used for adjusting the sealing strength between the inner ring and the outer ring in a self-adaptive mode when the bearing operates, and the outer ring and the inner ring are both provided with connecting structures used for being in linkage fit with the adjacent and corresponding sealing rings so as to improve the connecting strength between the outer ring and the sealing rings. And a loading piece which is used for self-adaptively adjusting when the bearing runs and applying acting force to the two sealing rings so as to improve the sealing strength between the inner ring and the outer ring is arranged between the two sealing rings. The problems that a sealing piece in a traditional bearing is low in sealing strength and prone to falling off or sliding when the bearing rotates at a high speed are solved.

Description

Technical Field

[0001] The invention relates to the technical field of bearings, in particular to a bearing with an anti-slip and anti-falling seal. Background Art

[0002] In the field of mechanical transmission, bearings are key components, and their performance directly affects the operating stability and service life of the equipment. There are many defects in the seals in traditional bearings. On the one hand, the sealing strength is low, and it is difficult to effectively prevent dust, moisture and other impurities from invading the inside of the bearing. Once these impurities enter, they will aggravate the wear of the rolling elements, inner rings and outer rings, reduce the rotation accuracy of the bearings, and thus affect the performance of the entire mechanical system. In severe cases, it may even cause equipment failure and shutdown, increase maintenance costs and production losses; on the other hand, when the bearing is in high-speed operation, traditional seals are very likely to fall off or slide. This is because the centrifugal force, vibration and temperature changes generated by high-speed operation will destroy the original connection stability between the seal and the inner and outer rings of the bearing. The falling off or sliding of the seal not only further weakens the sealing effect, but may also cause additional mechanical failures due to the abnormal movement of the seal inside the bearing, such as the jamming of the rolling element, which greatly limits the application of bearings in high-speed and high-precision equipment. Summary of the invention

[0003] In view of the shortcomings of the prior art, the present invention provides a bearing with an anti-slip and anti-falling seal to solve the problem that the seal in the traditional bearing has low sealing strength and is easy to fall off or slide when the bearing runs at high speed.

[0004] To achieve the above-mentioned objectives, the present invention provides a bearing with an anti-slip and anti-falling seal, comprising an outer ring, an inner ring and a rolling body movably arranged between the outer ring and the inner ring, sealing structures are arranged on both sides of the rolling body, the sealing structure comprises two sealing rings respectively arranged on the inner circumferential wall of the outer ring and the outer circumferential wall of the inner ring, the two sealing rings are each provided with an adjusting member for adaptively adjusting the sealing strength between the inner ring and the outer ring when the bearing is running, the outer ring and the inner ring are each provided with a connecting structure for linkage cooperation with adjacent and corresponding sealing rings to improve the connection strength between the sealing rings, and a loading member is arranged between the two sealing rings for adaptively adjusting and applying force to the two sealing rings to improve the sealing strength between the inner ring and the outer ring when the bearing is running.

[0005] The above technical solution is beneficial in that: after the bearing is installed in place, the outer ring, inner ring and rolling element are in a state of waiting for operation. At this time, the two sealing rings are respectively located on the inner peripheral wall of the outer ring and the outer peripheral wall of the inner ring, and are initially fixedly connected to the outer ring and the inner ring through the connecting structure. The loading part is in a pre-loaded state, and a certain initial force is applied to the two sealing rings, so that the sealing rings form a preliminary sealing contact with the inner ring and the outer ring; when the bearing starts to operate, the rolling element rolls between the inner ring and the outer ring, driving the inner ring and the outer ring to rotate relative to each other. At this time, the adjusting part begins to play a role. Since the inner ring and the outer ring will produce a small relative displacement and deformation due to factors such as force and temperature changes during the operation of the bearing, the adjusting part can sense these changes in real time and adaptively adjust its own structure or position, thereby changing the relative position between the two sealing rings and the sealing pressure on the inner and outer rings, ensuring that good sealing strength can be maintained under different working conditions; at the same time, the loading part will also be adaptively adjusted according to parameters such as the speed and temperature of the bearing operation. As the bearing speed increases or the temperature rises, the loader will automatically increase the force on the two sealing rings, further enhancing the sealing fit between the sealing rings and the inner and outer rings to resist the influence of adverse factors such as centrifugal force generated by high-speed operation on the sealing effect.

[0006] In the above technology, by setting the adjusting member and the loading member, the sealing strength between the inner ring and the outer ring can be adaptively adjusted according to the actual working conditions of the bearing during operation. The connection structure on the outer ring and the inner ring cooperates with the sealing ring. When the bearing is running at high speed, the connection strength between the inner ring and the sealing ring can be timely enhanced, so that the bearing can maintain a stable sealing state even when rotating at high speed, which provides reliable guarantee for the high-speed and high-precision operation of the equipment, broadens the application range of the bearing, and is particularly suitable for precision machinery, aerospace and other fields with extremely high requirements for sealing performance and stability. At the same time, good sealing performance and stable sealing structure reduce bearing failures caused by impurity intrusion and abnormal sealing members, reduce the maintenance frequency and maintenance cost of the equipment, and the adaptive adjustment characteristics of the adjusting member and the loading member enable the bearing of the present invention to adapt to a variety of complex working conditions and different working environments. There is no need to frequently replace the bearing or sealing structure for different working conditions. It only needs to rely on its own adaptive adjustment function to meet the sealing requirements under various working conditions, improve the versatility and adaptability of the bearing, and reduce the design and use costs of the equipment.

[0007] The present invention is further provided that: connecting grooves are circumferentially opened on the inner circumferential wall of the outer ring and the outer circumferential wall of the inner ring corresponding to adjacent sealing ring positions; the connecting structure includes a plurality of connecting protrusions circumferentially evenly distributed in the connecting groove along the direction in which the connecting groove is opened; the connecting protrusions are arranged in a columnar shape and the two ends of the connecting protrusions are respectively connected to the inner walls on both sides of the connecting groove; the gaps between adjacent connecting protrusions are matched and an insertion gap is formed; a plurality of insertion blocks are circumferentially evenly distributed on the sealing ring; the plurality of insertion blocks correspond to the plurality of insertion gaps one by one and are plugged in; the insertion blocks are made of elastic rubber material.

[0008] The benefits of adopting the above technical solution are: the connecting grooves opened on the inner circumferential wall of the outer ring and the outer circumferential wall of the inner ring in the above technology, cooperate with the connecting protrusions evenly distributed along the circumferential direction thereof, to construct a stable connection frame; the connecting protrusions are columnar and the two ends are connected to the inner walls on both sides of the connecting groove, to ensure the stability of the structure itself, and will not be easily displaced or damaged during the operation of the bearing; the insertion blocks on the sealing ring and the insertion gaps between the connecting protrusions are plugged in one-to-one, forming a tight mechanical connection; compared with the traditional simple fitting or snap-on connection, this connection method greatly increases the connection strength between the sealing ring and the inner and outer rings; when the bearing generates a strong centrifugal force when running at high speed, or is subjected to complex vibrations, the sealing ring can effectively resist external forces and remain firmly in its original position by virtue of the close fit between the insertion blocks and the insertion gaps, thereby greatly reducing the risk of the sealing ring falling off or sliding, and ensuring the reliability of the bearing sealing structure; in the above technology, the connecting protrusions are arranged on the inner ring of the connecting groove The insertion gaps are evenly distributed and formed between adjacent parts, and the corresponding insertion blocks are arranged on the sealing ring, so that the installation process of the sealing ring becomes relatively simple. The installer only needs to align the insertion block on the sealing ring with the insertion gap to quickly complete the installation, which improves the assembly efficiency. In the later maintenance stage, if the sealing ring is worn or damaged and needs to be replaced, it can also be easily removed from the connection structure, reducing the maintenance difficulty and time cost; in the above technology, the insertion block made of elastic rubber material can absorb and buffer these stress changes by its own elastic characteristics when facing the temperature changes, small relative displacement and deformation of the inner ring and the outer ring during the operation of the bearing. When the temperature rises and causes the thermal expansion of the components, the insertion block can be deformed appropriately and still maintain a close fit with the insertion gap, and will not loosen due to thermal expansion and contraction; when the inner ring and the outer ring are slightly displaced due to force, the insertion block can also adjust its position accordingly to maintain a stable connection between the sealing ring and the inner and outer rings. This adaptive ability enables the entire connection structure to maintain a good working state under complex working conditions, enhances the adaptability of the bearing structure, and further broadens the application range of bearings under different working environments and working conditions.

[0009] The present invention is further provided that: each of the insertion blocks is bent with an anti-detachment hook, each of the connecting protrusions is gap-matched with the bottom wall of the connecting groove and forms an anti-detachment groove for the corresponding anti-detachment hook to be inserted, the anti-detachment hook is made of shape memory alloy, the anti-detachment hook has a first form within a first temperature range, and the anti-detachment hook has a second form within a second temperature range, the anti-detachment hook is plugged into the anti-detachment groove in the first form, and the anti-detachment hook is deformed and bent toward the opening of the connecting groove in the second form and is hooked and matched with the connecting protrusion, and the anti-detachment hook is an adjusting member.

[0010] The benefits of adopting the above technical solution are: the anti-slip hook bent on the embedded block in the above technology cooperates with the anti-slip groove formed between the connecting protrusion and the bottom wall of the connecting groove to construct an extremely stable anti-slip defense line. When the bearing is not working or in the initial operation state, that is, when the anti-slip hook is in the first temperature range and presents the first form, the anti-slip hook is inserted into the anti-slip groove. This structure further strengthens the tightness of the connection between the sealing ring and the inner and outer rings. When the bearing encounters complex external forces during operation, the plug-in connection between the anti-slip hook and the anti-slip groove can effectively prevent the sealing ring from displacing in the radial or circumferential direction, greatly reducing the risk of the sealing ring falling off. Risk, compared with the connection method that simply relies on the insertion block and the insertion gap, it significantly improves the reliability of the bearing sealing structure under extreme working conditions; the anti-unhooking hook is made of shape memory alloy and exhibits different forms in different temperature ranges. This feature provides a strong guarantee for the stable operation of the bearing in a complex temperature environment. When the bearing operating temperature is in the second temperature range, the anti-unhooking hook changes to the second form, bends toward the opening of the connecting groove and hooks with the connecting protrusion. For example, under high temperature conditions, the overall temperature of the equipment rises, and the anti-unhooking hook changes its form and connects with the connecting protrusion. The hooking further strengthens the connection between the sealing ring and the inner and outer rings. High temperature will cause the components to expand thermally, which may cause the original connection parts to loosen. The adaptive deformation of the anti-unhooking just compensates for the gap change caused by thermal expansion, always maintains a tight and stable connection, and ensures that the sealing ring can work normally in a high temperature environment, greatly enhancing the adaptability of the bearing to temperature changes and broadening its application scenarios under different temperature conditions. The design of the above technology improves the connection strength between the sealing ring and the outer ring or the inner ring, thereby improving the anti-falling strength and anti-slip strength of the sealing ring on the bearing; the shape memory alloy in the above technology is a prior art, which deforms within a certain temperature range and resets within a certain temperature range. Taking a conventional shape memory alloy as an example, when the bearing is running at high speed, its internal temperature gradually rises to more than 30 degrees. At this time, the temperature range is the second temperature range, and when the bearing is not running or stops running, the temperature gradually drops to below 30 degrees or below 30 degrees. At this time, the temperature range is the first temperature range. In different temperature ranges, the shape memory alloy has different forms. Since the shape memory alloy is a prior art, its deformation principle and material are not described in detail.

[0011] The present invention further provides that: the gap between the two sealing rings on the same side is matched and a connecting gap is formed, the loading part includes a connecting ring arranged in the connecting gap, the two sealing rings on the same side are both provided with a matching groove in an annular direction and the two matching grooves are arranged opposite to each other, and a plurality of matching protrusions are extended on the connecting ring toward the two adjacent matching grooves, and the plurality of matching protrusions are inserted into their respective corresponding matching grooves, the radial cross-section of the matching protrusion is rectangular and is inclined relative to the bottom wall of the matching groove, the matching protrusion is made of shape memory alloy, the matching protrusion has a third form within the first temperature range, and the matching protrusion has a fourth form within the second temperature range, the matching protrusion is inserted into the matching groove in the third form, and the matching protrusion is deformed and bent toward the matching groove in the fourth form and is matched with the matching groove.

[0012] The benefits of adopting the above technical solution are: in the above technology, a connecting ring is set in the connecting gap between the two sealing rings on the same side, and the matching protrusion on the connecting ring cooperates with the matching groove on the sealing ring to establish a stable connection relationship. In the first temperature range where it is not working, the matching protrusion is in the third form and is placed in the matching groove to preliminarily fix the connecting ring and the sealing ring, providing basic stability for the sealing structure. When the temperature changes into the second temperature range, the matching protrusion is transformed into the fourth form, bent in the direction of the matching groove and abuts against the matching groove. This deformation further enhances the connection strength between the connecting ring and the sealing ring, and then when the sealing ring or the connecting ring is subjected to axial load impact, the sealing ring and the connecting ring cooperate to prevent the sealing ring from falling off or shifting from the bearing, effectively preventing the sealing ring from falling off or sliding, greatly improving the reliability of the bearing sealing structure under complex working conditions, and ensuring the long-term stable operation of the bearing. At the same time, the matching protrusion and the matching groove cooperate closely to form an efficient sealing defense line between the sealing rings. Since the radial cross-section of the mating protrusion is rectangular and is relatively inclined to the bottom wall of the mating groove, when the mating protrusion abuts the mating groove in the fourth form, it can fit the mating groove wall in all directions, fill possible tiny gaps, and effectively prevent external dust, moisture and other impurities from invading the interior of the bearing through the sealing ring connection; the shape memory alloy in the above technology is the prior art, which deforms within a certain temperature range and resets within a certain temperature range. Taking conventional shape memory alloy as an example, when the bearing is running at high speed, its internal temperature gradually rises to more than thirty degrees. At this time, the temperature range is the second temperature range, and when the bearing is not running or stops running, the temperature gradually drops to below thirty degrees or is below thirty degrees. At this time, the temperature range is the first temperature range. In different temperature ranges, the shape memory alloy has different forms. Since the shape memory alloy is the prior art, its deformation principle and material will not be described in detail.

[0013] The present invention further provides that: two clamping rings are annularly arranged on the outer peripheral wall of the connecting ring, the two clamping rings are coaxially and symmetrically arranged, and the outer peripheral walls of the two sealing rings are both bent with clamping lips toward the adjacent clamping rings, the clamping lips are made of rubber material and are hooked and coordinated with the clamping rings.

[0014] The benefits of adopting the above technical solution are: the two coaxial and symmetrical clamping rings arranged on the outer peripheral wall of the connecting ring in the above technology are hooked and cooperated with the bent clamping lip on the outer peripheral wall of the sealing ring to build another layer of stable connection system; the clamping lip made of rubber material has good flexibility and elasticity, and can be easily hooked into place with the clamping ring during installation; and during the operation of the bearing, even if it is subjected to complex external forces, such as axial movement, radial vibration, etc., the clamping lip can tightly hook the clamping ring by virtue of its own elasticity, effectively preventing the sealing ring from being displaced in the axial or circumferential direction; this connection method cooperates with the inserted block, anti-unhooking and other structures to further enhance the connection strength between the sealing ring and the connecting ring, greatly reducing the risk of the sealing ring falling off or sliding under various working conditions, and ensuring the bearing sealing structure. Reliability and stability provide a solid guarantee for the long-term stable operation of the bearing; at the same time, the close connection between the snap lip and the snap ring forms an effective sealing barrier between the sealing ring and the connecting ring. Since the snap lip is made of rubber, it can adaptively fit the surface of the snap ring and fill in the possible tiny gaps, effectively preventing external dust, moisture and other impurities from invading the interior of the bearing through the connection part; the snap lip made of rubber makes the entire connection structure have good adaptability to the slight deformation and displacement during the operation of the bearing. When the bearing is running, the inner ring and the outer ring may produce slight relative displacement and deformation due to uneven force, temperature changes and other factors. The snap lip can absorb these stress changes with its own elasticity, always maintain a hooked state with the snap ring, and ensure that the stability of the connection is not affected.

[0015] The present invention further provides that: the connecting ring is made of elastic rubber material and the connecting ring is placed into the connecting gap through a stamping process.

[0016] The benefits of adopting the above technical solution are: in the above technology, the connecting ring is placed into the connection gap by stamping process, which greatly simplifies the installation process. The stamping process is efficient and precise. Compared with traditional manual assembly or other complex installation methods, the connecting ring can be quickly and accurately installed in the connection gap between the two sealing rings. The installer does not need to perform tedious positioning and fixing operations. The installation of the connecting ring can be completed in one go through the stamping equipment, which greatly shortens the installation time and improves production efficiency. It is especially suitable for large-scale production scenarios and can effectively reduce production costs. At the same time, the connecting ring made of elastic rubber material has good flexibility and plasticity. During the stamping process, the connecting ring can adaptively deform elastically according to the actual size and shape of the connection gap, so as to fit the gap tightly and ensure the accuracy and stability of the installation.

[0017] The present invention further provides that: a frame is embedded in the sealing ring, and the frame is made of 65Mn spring steel.

[0018] The advantages of adopting the above technical solution are: in the above technology, a skeleton made of 65Mn spring steel is embedded in the sealing ring, which greatly enhances the overall strength of the sealing ring. 65Mn spring steel has high strength and good elasticity, and can effectively support the structure of the sealing ring, so that it is not easy to deform, crack or other damage when it is subjected to various complex external forces during the operation of the bearing. Under long-term high-speed operation or high-load conditions, ordinary sealing rings may gradually lose their original shape and sealing performance due to stress, while the sealing ring embedded with a skeleton can always maintain a good shape and structural integrity with the support of the spring steel skeleton, which greatly extends the service life of the sealing ring, reduces the number of equipment shutdowns and maintenance caused by damage to the sealing ring, and improves the operating efficiency and reliability of the equipment.

[0019] The present invention further provides that: the sealing ring is made of elastic rubber material.

[0020] The advantages of adopting the above technical solution are: the elastic rubber material has excellent flexibility and elasticity, and can closely fit the surfaces of the inner ring, outer ring, connecting ring and other parts of the bearing. During the operation of the bearing, even if there is a slight relative displacement or vibration between the inner ring and the outer ring, or the size of the parts changes slightly due to temperature changes, the elastic rubber sealing ring can always maintain close contact with the contact parts by virtue of its own elastic deformation ability, effectively fill the possible gaps, prevent dust, moisture, impurities and other external pollutants from invading the interior of the bearing, greatly improve the sealing performance, create a clean and stable operating environment for the bearing, and ensure the normal operation and service life of the bearing. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a cross-sectional view of the present invention; Figure 2 for Figure 1 Partial enlarged view of part A in the middle; Figure 3 A three-dimensional view of the matching state of the sealing ring and the connecting ring in the present invention; Figure 4 It is a simplified schematic diagram of the cooperation state between the anti-unhooking hook and the connecting protrusion when the bearing is running in the present invention; Figure 5 It is a simplified schematic diagram of the cooperation state between the anti-drop hook and the connecting protrusion when the bearing is not running in the present invention. DETAILED DESCRIPTION

[0022] The present invention provides a bearing with an anti-slip and anti-falling seal, comprising an outer ring 1, an inner ring 11 and a rolling body 12 movably arranged between the outer ring 1 and the inner ring 11, wherein sealing structures are arranged on both sides of the rolling body 12, wherein the sealing structure comprises two sealing rings 2 respectively arranged on the inner peripheral wall of the outer ring 1 and the outer peripheral wall of the inner ring 11, wherein the two sealing rings 2 are respectively provided with an adjusting member for adaptively adjusting the sealing strength between the inner ring 11 and the outer ring 1 when the bearing is running, wherein the outer ring 1 and the inner ring 11 are respectively provided with a connecting structure for linkage cooperation with adjacent and corresponding sealing rings 2 to improve the connection strength between the sealing rings 2, wherein a sealing member for adaptively adjusting and applying a force to the two sealing rings 2 to improve the connection strength between the inner ring 11 and the outer ring 1 is arranged between the two sealing rings 2 The loader for the sealing strength between the outer rings 1, the inner circumferential wall of the outer ring 1 and the outer circumferential wall of the inner ring 11 are circumferentially provided with connecting grooves 13 corresponding to the adjacent sealing ring 2 positions, the connecting structure includes a plurality of connecting protrusions 131 circumferentially distributed in the connecting groove 13 along the opening direction of the connecting groove 13, the connecting protrusion 131 is arranged in a columnar shape and the two ends of the connecting protrusion 131 are respectively connected to the inner walls on both sides of the connecting groove 13, the adjacent connecting protrusions 131 are gap-matched and form an insertion gap 132, a plurality of insertion blocks 21 are circumferentially distributed on the sealing ring 2, a plurality of the insertion blocks 21 correspond to a plurality of insertion gaps 132 one by one and are plug-matched, the insertion blocks 21 are made of elastic rubber material, and each of the insertion blocks 21 is bent and provided with an anti-disengagement hook 22, Each of the connecting protrusions 131 is gap-matched with the bottom wall of the connecting groove 13 and forms an anti-slip groove 133 for the corresponding anti-slip hook 22 to be inserted. The anti-slip hook 22 is made of shape memory alloy. The anti-slip hook 22 has a first form in a first temperature range and a second form in a second temperature range. The anti-slip hook 22 is plugged into the anti-slip groove 133 in the first form. The anti-slip hook 22 is deformed and bent toward the opening of the connecting groove 13 in the second form and is hooked and matched with the connecting protrusion 131. The anti-slip hook 22 is an adjusting member. The two sealing rings 2 on the same side are gap-matched and form a connecting gap 23. The loading member includes a connecting ring 3 arranged in the connecting gap 23. The two sealing rings 2 on the same side are gap-matched and form a connecting gap 23. The sealing ring 2 is provided with a matching groove 24 in an annular direction and the two matching grooves 24 are arranged opposite to each other. The connecting ring 3 is provided with a plurality of matching protrusions 31 extending in the direction of the two adjacent matching grooves 24. The matching protrusions 31 are inserted into the corresponding matching grooves 24. The matching protrusions 31 have a rectangular radial cross section and are arranged obliquely relative to the bottom wall of the matching groove 24. The matching protrusions 31 are made of shape memory alloy. The matching protrusions 31 have a third form in the first temperature range and a fourth form in the second temperature range. The matching protrusions 31 are placed in the matching grooves 24 in the third form. The matching protrusions 31 are deformed and bent in the direction of the matching grooves 24 in the fourth form and are arranged to abut against the matching grooves 24.Two snap rings 32 are arranged circumferentially on the outer peripheral wall of the connecting ring 3. The two snap rings 32 are coaxial and symmetrically arranged. The outer peripheral walls of the two sealing rings 2 are bent with snap lips 25 toward the adjacent snap rings 32. The snap lips 25 are made of rubber material and are hooked and matched with the snap rings 32. The connecting ring 3 is made of elastic rubber material and is inserted into the connecting gap 23 through a stamping process. A skeleton 26 is embedded in the sealing ring 2. The skeleton 26 is made of 65Mn spring steel material. The sealing ring 2 is made of elastic rubber material.

[0023] The basic principles and main features of the present invention and the advantages of the present invention are shown and described above. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are only for illustrating the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which shall fall within the scope of the present invention to be protected. The scope of protection of the present invention shall be defined by the attached claims and their equivalents.

Claims

1. A bearing with an anti-slip and anti-falling seal, comprising an outer ring, an inner ring and a rolling element movably arranged between the outer ring and the inner ring, characterized in that: A sealing structure is provided on both sides of the rolling body, and the sealing structure includes two sealing rings which are respectively arranged on the inner circumferential wall of the outer ring and the outer circumferential wall of the inner ring. The two sealing rings are provided with an adjusting member for adaptively adjusting the sealing strength between the inner ring and the outer ring when the bearing is running. The outer ring and the inner ring are provided with a connecting structure for cooperating with adjacent and corresponding sealing rings to improve the connection strength between the sealing rings. A loading member is provided between the two sealing rings for adaptively adjusting and applying force to the two sealing rings to improve the sealing strength between the inner ring and the outer ring when the bearing is running.

2. A bearing with an anti-slip and anti-falling seal according to claim 1, characterized in that: The inner circumferential wall of the outer ring and the outer circumferential wall of the inner ring are both circumferentially provided with connecting grooves at the positions of the adjacent sealing rings. The connecting structure comprises a plurality of connecting protrusions circumferentially distributed in the connecting grooves along the direction in which the connecting grooves are opened. The connecting protrusions are arranged in a columnar shape and the two ends of the connecting protrusions are respectively connected to the inner walls on both sides of the connecting grooves. The gaps between the adjacent connecting protrusions are matched to form an insertion gap. A plurality of insertion blocks are circumferentially distributed on the sealing ring. The plurality of insertion blocks correspond to the plurality of insertion gaps one by one and are plugged in. The insertion blocks are made of elastic rubber material.

3. A bearing with an anti-slip and anti-falling seal according to claim 2, characterized in that: Each of the insertion blocks is bent with an anti-detachment hook, each of the connecting protrusions is gap-matched with the bottom wall of the connecting groove to form an anti-detachment groove for the corresponding anti-detachment hook to be inserted, the anti-detachment hook is made of shape memory alloy, the anti-detachment hook has a first form within a first temperature range, and the anti-detachment hook has a second form within a second temperature range, the anti-detachment hook is plugged into the anti-detachment groove in the first form, and the anti-detachment hook is deformed and bent toward the opening of the connecting groove in the second form and is hooked and matched with the connecting protrusion, and the anti-detachment hook is an adjusting member.

4. A bearing with an anti-slip and anti-falling seal according to claim 2, characterized in that: The two sealing rings on the same side are gap-fitted and form a connecting gap. The loader includes a connecting ring arranged in the connecting gap. The two sealing rings on the same side are both provided with matching grooves in an annular direction and the two matching grooves are arranged opposite to each other. A plurality of matching protrusions are extended from the connecting ring toward the two adjacent matching grooves. The matching protrusions are inserted into their respective corresponding matching grooves. The radial cross-section of the matching protrusions is rectangular and is inclined relative to the bottom wall of the matching groove. The matching protrusions are made of shape memory alloy. The matching protrusions have a third form within the first temperature range and a fourth form within the second temperature range. The matching protrusions are placed in the matching groove in the third form. The matching protrusions are deformed and bent toward the matching groove in the fourth form and are matched with the matching groove.

5. A bearing with an anti-slip and anti-falling seal according to claim 4, characterized in that: Two clamping rings are arranged in an annular direction on the outer peripheral wall of the connecting ring. The two clamping rings are coaxially and symmetrically arranged. The outer peripheral walls of the two sealing rings are both bent with clamping lips towards the adjacent clamping rings. The clamping lips are made of rubber material and are hooked and matched with the clamping rings.

6. A bearing with an anti-slip and anti-falling seal according to claim 4, characterized in that: The connecting ring is made of elastic rubber material and is placed in the connecting gap through a stamping process.

7. A bearing with an anti-slip and anti-falling seal according to claim 1, characterized in that: A frame is embedded in the sealing ring, and the frame is made of 65Mn spring steel.

8. The bearing with an anti-slip and anti-falling seal according to claim 1, characterized in that: The sealing ring is made of elastic rubber material.

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