A seal ring support structure and a seal ring

Abstract

This invention discloses a sealing ring support structure and a sealing ring, relating to the field of bearing sealing technology. The bearing comprises an inner ring, an outer ring, and balls. Multiple protective blocks are fixedly connected to the outer surface of the outer ring. Sealing assemblies are provided on both sides of the bearing. Each sealing assembly includes two sets of sealing rings (I) fitted to both sides of the bearing. Multiple sealing rings (I) are arranged in a circular array in each set. A second sealing ring (II) is fixedly connected between every two sealing rings (I) in each set. Each sealing ring (I) has an oil injection hole. By using a ring composed of sealing rings (I) and sealing rings (II) of different materials as a sealing ring, compared to existing sealing rings that are prone to warping at high temperatures due to uneven thermal expansion, the hard rubber sealing ring (I) acts as a supporting skeleton, limiting overall deformation. Furthermore, the soft rubber sealing ring (II) absorbs the compressive force of thermal expansion through elastic deformation in adjacent areas, preventing stress caused by localized deformation from leading to warping.

Description

Technical Field

[0001] This invention relates to the field of bearing sealing technology, and more specifically, to a sealing ring support structure and a sealing ring. Background Technology

[0002] In the joints of industrial robots, numerous bearings are used for support, reducing wear on the robotic arm during rotation. Existing bearings typically use sealing rings on both sides for sealing. Traditional sealing rings are often made of materials such as nitrile rubber or fluororubber, which achieve dustproof and leak-proof functions by elastically deforming and tightly fitting with the inner and outer rings of the bearing. While this design offers advantages such as simple structure and controllable cost, high temperatures are inevitable during the long-term operation of industrial robots. Currently, most bearings use high-temperature bearing steel to prevent overheating and deformation during prolonged operation. Due to the high temperatures encountered during bearing use, the sealing rings are prone to warping due to differences in thermal expansion coefficients. Continuous friction between the sealing lip and the metal contact surface accelerates material aging, leading to wear and eventual seal failure. Furthermore, the integration of existing sealing rings with the bearing is relatively low, often simply attached to the bearing surface. Both sides of the bearing are coated with lubricating oil, which reduces wear caused by the balls moving within the bearing over a long period of time. However, after prolonged use, the lubricating oil will decrease due to high-temperature evaporation or oxidation decomposition, requiring manual refilling of the bearing. Routine lubrication maintenance requires disassembling the seal ring before lubricating oil can be injected, which not only increases downtime but also easily causes deformation or scratches to the seal ring due to repeated disassembly and assembly, leading to an expansion of the dust intrusion channel and affecting the bearing's service life. Some aged seal rings are easily damaged by pulling during disassembly, requiring replacement with new seal rings, which increases the cost of bearing maintenance. Summary of the Invention

[0003] To solve the above-mentioned technical problems, the present invention provides a sealing ring support structure and a sealing ring.

[0004] The technical solution is as follows:

[0005] A sealing ring includes a bearing, which consists of an inner ring, an outer ring, and balls. Multiple protective blocks are fixedly connected to the outer surface of the outer ring of the bearing, and sealing components are provided on both sides of the bearing.

[0006] The sealing assembly includes two sets of sealing rings 1 that fit against both sides of the bearing. Each set of sealing rings 1 has multiple rings arranged in a ring array. A sealing ring 2 is fixedly connected between every two sealing rings 1 in each set. Each sealing ring 1 has an oil injection hole. A one-way plate is fixedly connected to the inner wall of each oil injection hole. A retaining block is fixedly connected to the surface of each sealing ring 1. Multiple retaining blocks are arranged in a ring array.

[0007] Furthermore, the material of sealing ring one is hard rubber, and the material of sealing ring two is soft rubber. When sealing ring one and sealing ring two are combined, they form two ring-shaped circles. The inner and outer edges of the combined ring of sealing ring one and sealing ring two are provided with raised skeletons. The raised skeletons on the outer edges of sealing ring one and sealing ring two are in contact with the outer ring surface of the bearing, and the raised skeletons on the inner edges of sealing ring one and sealing ring two are in contact with the inner ring surface of the bearing.

[0008] Furthermore, the one-way sheet consists of four fan-shaped rubber plates. The one-way sheet can only bend elastically to one side of the retaining block. The diameter of the oil injection hole is the same as the size of the existing syringe needle. Each retaining block has a hole, and the hole of the retaining block is connected to the interior of the oil injection hole. The side of the retaining block away from the sealing ring is adapted to the shape of the bearing ball.

[0009] A sealing ring support structure includes a support assembly disposed on the outside of a bearing. The support assembly includes two support rings disposed on both sides of the bearing. A set of locking rods arranged in a ring array is fixedly connected to the side of the two support rings that are close to each other. Each set of locking rods has multiple locking rods, and each locking rod is fitted with a locking sleeve. A spring is fixedly connected between each locking sleeve and the corresponding locking rod. There are also two sets of locking sleeves and locking rods, and the two sets of locking sleeves correspond to each other.

[0010] Furthermore, the support assembly also includes two extension plates fixedly connected to one of the locking sleeves. Each of the two extension plates is slidably connected to a movable rod. The ends of the two movable rods that are far apart from each other are fitted with springs. The two ends of the springs are fixedly connected to the extension plates and the movable rods, respectively. The ends of the two movable rods that are close to each other are fixedly connected to locking blocks. The sides of the two locking blocks that are close to each other are set as bevels.

[0011] Furthermore, the support assembly also includes a fixing seat fixedly connected to another set of locking sleeves, a fixing rod fixedly connected to the fixing seat, a locking block fixedly connected to the end of the fixing rod away from the fixing seat, and a release block sleeved on the outer surface of the fixing rod.

[0012] Furthermore, the side of the locking block away from the fixing rod is set as an arc-shaped bevel, and the edge of the locking block near the fixing rod is set as a rounded corner. The edge of the releasing block away from the fixing seat is set as a rounded corner, and the side of the releasing block near the fixing seat is set as an arc-shaped bevel.

[0013] Furthermore, the support assembly also includes multiple support sleeves fixedly connected to the inner sidewalls of the two support rings. There are two sets of support sleeves, and each set of support sleeves is arranged in a circular array with multiple sleeves. Each support sleeve has a support rod inserted inside, and each support rod is fixedly connected to the support sleeve with a spring.

[0014] Furthermore, each support sleeve has a protrusion near the end connected to the support ring, and the protrusion of the support sleeve abuts against the outer edge of the outer raised skeleton of the sealing ring. The support rod also has a protrusion at the end away from the inside of the support sleeve, and the protrusion of the support rod abuts against the inner edge of the outer raised skeleton of the sealing ring.

[0015] Based on the above, the beneficial effects of the sealing ring support structure and sealing ring of the present invention are as follows:

[0016] A ring composed of sealing ring 1 and sealing ring 2 made of different materials is used as a sealing ring. Compared with the existing sealing rings, which are prone to warping due to uneven thermal expansion of materials at high temperatures, the hard rubber sealing ring 1 serves as a supporting skeleton to limit the overall deformation, while the soft rubber sealing ring 2 absorbs the compressive force of thermal expansion in adjacent areas through elastic deformation, avoiding the stress caused by local deformation that leads to warping.

[0017] The retaining block can achieve the effect of the existing ball cage. Compared with the existing separately set ball cage, the integrated design makes it easy to install the retaining block quickly. Moreover, the integrated structure is more robust than the separate structure, less prone to damage, and has a longer component life.

[0018] By injecting lubricating oil directly into the bearing through the injection hole using a syringe, the step of disassembling the seal ring and then applying lubricating oil is eliminated, saving time and effort. For some aging seal rings, it is easy to tear them when disassembling. Direct injection without disassembly can avoid damage to the seal ring, reduce the maintenance cost of replacing the seal ring, and also reduce the wear caused by the broken residue of the seal ring falling into the bearing and causing wear to the bearing operation.

[0019] By setting raised skeletons on the inner and outer edges of sealing ring one and sealing ring two, the inner or outer ring of the bearing will come into contact with and rub against the raised skeletons of sealing ring one and sealing ring two when the bearing rotates. Compared with the problem of wear caused by direct contact between the sealing ring and the bearing, the raised skeletons that can be rubbed can avoid the sealing ring from directly contacting the bearing and causing wear, thereby extending the service life of the sealing ring.

[0020] The support ring can be quickly installed on both sides of the bearing by the locking block and the locking block. With the help of the movable locking sleeve, it is possible to combine and install bearings of different thicknesses, thereby improving the adaptability of the locking sleeve to bearings of different thicknesses. In addition, the locking block can be quickly released by the release block to achieve quick disassembly and improve disassembly efficiency.

[0021] The engagement of the protrusions on the support sleeve and the support rod allows for the positioning and installation of the combined ring of sealing ring one and sealing ring two. Furthermore, the elastic return action of spring one causes the locking rod to press the support sleeve against sealing ring one via the support ring, ensuring that sealing ring one and sealing ring two are tightly fitted against both sides of the bearing. This further enhances the sealing effect of the combined ring of sealing ring one and sealing ring two on the bearing. The external support pressing method also prevents loosening and ensures the stability of the combined ring of sealing ring one and sealing ring two. Attached Figure Description

[0022] Figure 1 This is a three-dimensional schematic diagram of the overall components of the present invention;

[0023] Figure 2 This is a schematic diagram of the support ring, bearing, and retaining block of the present invention;

[0024] Figure 3 This is a three-dimensional schematic diagram of the internal structure of the bearing of the present invention;

[0025] Figure 4 This is a three-dimensional schematic diagram of the sealing ring 1, sealing ring 2, retaining block, and other components of the present invention;

[0026] Figure 5 This is a three-dimensional cross-sectional view of the overall components of the present invention;

[0027] Figure 6 For the present invention Figure 5 Enlarged schematic diagram of component A in the middle;

[0028] Figure 7 For the present invention Figure 5 Enlarged schematic diagram of component at point B;

[0029] Figure 8 This is a three-dimensional schematic diagram of the support ring, locking rod, support rod, and other components of the present invention;

[0030] Figure 9 This is a top view of the locking sleeve, locking block, and locking block components of the present invention;

[0031] Figure 10 This is a three-dimensional cross-sectional view of the support rod, support sleeve, and spring components of the present invention.

[0032] The reference numerals in the accompanying drawings of this invention are as follows:

[0033] 1. Bearing; 11. Protective block;

[0034] Sealing components: 21. Sealing ring one; 22. Sealing ring two; 23. Oil injection hole; 24. One-way disc; 25. Retaining block;

[0035] Support components: 31. Support ring; 32. Locking rod; 33. Locking sleeve; 34. Spring 1; 35. Extension plate; 36. Movable rod; 37. Spring 2; 38. Locking block; 39. Fixed seat; 310. Fixed rod; 311. Locking block; 312. Release block; 313. Support sleeve; 314. Support rod; 315. Spring 3. Detailed Implementation

[0036] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort are within the scope of protection of the present invention.

[0037] The embodiments provided by the present invention will be described in detail below:

[0038] Example 1:

[0039] like Figure 1 and Figure 3 As shown, a sealing ring includes a bearing 1, which is specifically composed of an inner ring, an outer ring, and balls. The bearing 1 is existing technology and will not be described in detail here. Multiple protective blocks 11 are fixedly connected to the outer surface of the outer ring of the bearing 1, with gaps between each pair of protective blocks 11. The outer surface of each protective block 11 is roughened. Sealing components for sealing the bearing 1 are provided on both sides of the bearing 1.

[0040] It should be noted that the protective block 11 is used to protect the outer ring of the bearing 1. If friction occurs during use, it will only affect the protective block 11 and will not cause friction to the bearing 1, thus reducing the risk of wear on the bearing 1. When the bearing 1 is installed in the hole of the mechanical equipment, the existing method is to press-fit the outer ring of the bearing 1 with the mounting hole or sleeve of the mechanical equipment. The roughened protective block 11 can increase the friction with the mounting hole or sleeve of the mechanical equipment, further improving the stability of the bearing 1 installation.

[0041] like Figures 1 to 6 and Figure 10As shown, the sealing assembly includes two sets of sealing rings 21 that adhere to both sides of the bearing 1. Multiple sealing rings 21 are arranged in a ring array within each set. The sealing rings 21 are made of hard rubber. A second sealing ring 22, made of soft rubber, is fixedly connected between every two sealing rings 21 in each set. The combination of sealing rings 21 and 22 forms two annular rings. Each sealing ring 21 has an oil injection hole 23, the diameter of which is the same as that of a conventional syringe needle. Each oil injection hole 23 has a one-way plate 24 fixedly connected to its inner sidewall, and each sealing ring 21 has a retaining block 25 fixedly connected to its surface, corresponding to the position of the oil injection hole 23. That is, there are two sets of retaining blocks 25, and each set of retaining blocks 25 is arranged in a ring array with multiple blocks. Each retaining block 25 has a hole, and the hole of the retaining block 25 is connected to the interior of the oil injection hole 23. The side of the retaining block 25 away from the sealing ring 21 is adapted to the shape of the ball of the bearing 1, so that the retaining block 25 can fit with the ball of the bearing 1.

[0042] It should be noted that the one-way sheet 24 is composed of four fan-shaped rubber plates, and the one-way sheet 24 can elastically deform in the direction close to the retaining block 25. That is, the one-way sheet 24 can only be elastically bent towards the retaining block 25. The one-way sheet 24 cannot be bent away from the retaining block 25, which can achieve a sealing effect and prevent the lubricating oil in the bearing 1 from flowing out from the oil injection hole 23.

[0043] To further explain, for a ring composed of sealing ring 21 and sealing ring 22 made of different materials, compared to existing sealing rings which are prone to warping due to uneven thermal expansion of materials at high temperatures, the hard rubber sealing ring 21 serves as a supporting skeleton to limit overall deformation, while the soft rubber sealing ring 22 absorbs the compressive force of thermal expansion to adjacent areas through elastic deformation, thus avoiding stress caused by local deformation that leads to warping.

[0044] In this process, two annular sealing rings 21 and 22 are attached to both sides of the bearing 1. During this process, the retaining block 25 needs to be aligned with the balls of the bearing 1. After the two annular sealing rings 21 and 22 are attached to both sides of the bearing 1, the sealing ring 21 enables the retaining block 25 to fit with the balls of the bearing 1. In addition, after the multiple retaining blocks 25 of both sets are aligned with the balls of the bearing 1, the two sets of retaining blocks 25 will wrap around the balls. The retaining blocks 25 can form the effect of the existing ball cage. Compared with the existing separately set ball cage, the integrated design can facilitate the quick installation of the retaining block 25. Moreover, the integrated structure is more robust than the separate structure, less prone to damage, and has a longer service life.

[0045] In addition, the existing bearing 1 is coated with lubricating oil inside. However, after long-term use, the lubricating oil will decrease due to high temperature evaporation or oxidation decomposition. Therefore, it is necessary to manually re-inject the lubricating oil into the bearing 1. At this time, the staff can use an existing syringe. The staff inserts the syringe containing lubricating oil into the oil injection hole 23. After the syringe is inserted into the oil injection hole 23, it pushes the one-way plate 24. At this time, the one-way plate 24 will bend elastically towards the side closer to the retaining block 25. After pushing the syringe, the lubricating oil will be injected into the oil injection hole 23. The lubricating oil is injected into the bearing 1 after passing through the hole in the retaining block 25. This reduces the need to remove the seal ring and then apply lubricating oil, saving time and effort. For some aging seal rings, it is easy to tear them when disassembling, and oil leakage is likely to occur after reinstalling the seal ring.

[0046] When the operator pulls the syringe out of the oil injection hole 23, the one-way plate 24 returns to a sealed state under the elastic reset action. At this time, the one-way plate 24 can seal the oil injection hole 23, thereby sealing the lubricating oil injected into the bearing 1 and preventing the lubricating oil from leaking out from the inside of the oil injection hole 23.

[0047] It should be noted that both the inner and outer edges of the combined ring of sealing ring 21 and sealing ring 22 are provided with raised skeletons. The raised skeletons on the outer edges of sealing ring 21 and sealing ring 22 are in contact with the outer ring surface of bearing 1, and the raised skeletons on the inner edges of sealing ring 21 and sealing ring 22 are in contact with the inner ring surface of bearing 1. When the inner or outer ring of bearing 1 rotates, it will come into contact with and rub against the raised skeletons of sealing ring 21 and sealing ring 22. Compared with the problem of wear caused by direct contact between the sealing ring and bearing 1, the presence of raised skeletons that can be rubbed can prevent the sealing ring from directly contacting bearing 1 and causing wear, thereby extending the service life of the sealing ring.

[0048] Example 2:

[0049] like Figure 1 , Figure 2 , Figure 5 , Figures 7 to 9 As shown, a sealing ring support structure includes a support assembly disposed on the outside of a bearing 1. The support assembly includes two support rings 31 disposed on both sides of the bearing 1. A set of locking rods 32 arranged in a ring array is fixedly connected to the side of the two support rings 31 that are close to each other. Each set of locking rods 32 is provided with multiple locking rods 32. Each locking rod 32 is fitted with a locking sleeve 33. A spring 34 is fixedly connected between each locking sleeve 33 and the corresponding locking rod 32. There are also two sets of locking sleeves 33 and locking rods 32, and the two sets of locking sleeves 33 correspond to each other.

[0050] like Figures 7 to 9As shown, the support assembly also includes two extension plates 35 fixedly connected to one of the locking sleeves 33. Each of the two extension plates 35 is slidably connected to a movable rod 36. The ends of the two movable rods 36 that are far apart from each other are fitted with springs 37. The two ends of the springs 37 are fixedly connected to the extension plates 35 and the movable rods 36 respectively. The ends of the two movable rods 36 that are close to each other are fixedly connected to locking blocks 38. The sides of the two locking blocks 38 that are close to each other are both set as inclined surfaces.

[0051] like Figure 7 and Figure 9 As shown, the support assembly also includes a fixing seat 39 fixedly connected to another set of locking sleeves 33. A fixing rod 310 is fixedly connected to the fixing seat 39. A locking block 311 is fixedly connected to the end of the fixing rod 310 away from the fixing seat 39. The side of the locking block 311 away from the fixing rod 310 is set as an arc-shaped slope. A release block 312 is sleeved on the outer surface of the fixing rod 310. The side of the release block 312 near the fixing seat 39 is set as an arc-shaped slope.

[0052] It should be noted that the edge of the locking block 311 near the fixing rod 310 is rounded, and the edge of the releasing block 312 away from the fixing seat 39 is rounded.

[0053] When the support ring 31 is installed on both sides of the bearing 1, the operator can pull two corresponding locking sleeves 33 in the two sets, so that the two locking sleeves 33 approach each other on the outer surface of the locking rod 32. The moving locking sleeve 33 will stretch the spring 34. At this time, one locking sleeve 33 will cause the moving rod 36 to drive the locking block 38 to move closer to the locking block 311 through the extension plate 35. The other locking sleeve 33 will cause the locking rod 310 to drive the locking block 311 to move closer to the locking block 38 through the fixing seat 39. When the inclined surface of the locking block 38 abuts against the arc inclined surface of the locking block 311... After contact, as the two locking sleeves 33 continue to approach each other, the locking block 311 will push the locking block 38 and make it move to both sides. After the locking block 38 drives the movable rod 36 to move to both sides, it will stretch the second spring 37. When the locking block 38 passes the locking block 311, under the elastic reset action of the second spring 37, the movable rod 36 will drive the locking block 38 to abut against the outer surface of the fixed rod 310. In addition, the first spring 34 stretched in the above-mentioned process will cause the locking block 38 to abut against the side of the locking block 311 near the fixed rod 310, thereby making the locking block 38 and the locking block 311 engage. At this time, the two locking sleeves 33 are locked together.

[0054] The above steps are only for locking two individual corresponding locking sleeves 33. For every other pair of corresponding locking sleeves 33, the same operation is performed according to the above steps, so that all pairs of corresponding locking sleeves 33 are locked.

[0055] It should be noted that when pulling the locking sleeve 33, the locking sleeve 33 needs to be placed between the two protective blocks 11. The support ring 31 is locked by the movable locking sleeve 33, which can realize the combination and installation of bearings 1 of different thicknesses, thereby improving the adaptability of the locking sleeve 33 to bearings 1 of different thicknesses.

[0056] Furthermore, when the support ring 31 needs to be disassembled, the worker can pull the two corresponding locking sleeves 33 in the two sets again. After the two locking sleeves 33 approach each other, one locking sleeve 33 will cause the movable rod 36 to move the locking block 38 closer to the fixed seat 39 through the extension plate 35. The other locking sleeve 33 will cause the release block 312 on the fixed rod 310 to move closer to the locking block 38 through the fixed seat 39. At this time, the inclined surface of the locking block 38 will abut against the edge of the release block 312. Under the action of the inclined surface of the locking block 38, the support sleeve 313 will be pressed against the surface of the fixed seat 39 near the fixed rod 310. At this time, the release block 312 will not move on the fixed rod 310. When the two locking sleeves 33 continue to approach each other, the release block 312 will push the locking block 38 and make it move to both sides. After the locking block 38 moves to both sides of the movable rod 36, it will stretch the second spring 37. After the locking block 38 passes the releasing block 312, under the elastic reset action of the second spring 37, the movable rod 36 causes the locking block 38 to abut against the arc-shaped inclined surface of the releasing block 312. At this time, the operator releases the locking sleeve 33. Under the elastic reset action of the first spring 34, the locking sleeve 33 drives the locking block 38 to quickly push the releasing block 312 through the extension plate 35, causing the releasing block 312 to move towards the side closer to the locking block 311 on the outer surface of the fixed rod 310. When the releasing block 312 and the locking block 311 are in contact, the releasing block 312 can no longer move. At the same time, the locking block 38 will continue to move. At this time, the locking block 38 will move to both sides under the action of the arc-shaped inclined surface of the releasing block 312. The movement of the locking block 38 will stretch the second spring 37 again through the movable rod 36. After the locking block 38 passes the releasing block 312, it will pass the locking block 311 again. That is, the work of disengaging the locking block 38 from the locking block 311 is completed, achieving the effect of quick disassembly.

[0057] It should be noted that when the locking block 38 and the fixing rod 310 are engaged, the locking block 312 will be pushed to the end of the fixing rod 310 near the locking block 311, that is, the locking block 312 will be in a close fit with the locking block 311. At this time, the rounded corners on the locking block 311 and the rounded corners on the locking block 312 will be recessed. In the above, the inclined surface of the locking block 38 contacts the inclined surface of the locking block 311, and after the movement continues, the locking block 38 will pass the locking block 311. At this time, the locking block 38 will abut against the recess between the locking block 311 and the support sleeve 313. Under the elastic reset action of the spring 37, the locking block 38 will push the locking block 312 on the outer surface of the fixing rod 310 and move away from the locking block 311. At this time, the locking block 38 can also engage with the locking block 311.

[0058] To further explain, when the locking sleeves 33 move closer together, they are pulled manually, so the movement of the locking sleeves 33 can be relatively slow. Because of the slow movement, when the locking block 38 moves to the recess of the release block 312 and the locking block 311, there is enough time to push the release block 312. However, when the locking sleeves 33 move away from each other, they move under the elastic reset action of the spring 34, so the movement of the locking sleeves 33 is relatively fast. Because of the fast movement, when the locking block 38 moves to the recess of the release block 312 and the locking block 311, the movement speed is too fast and there is no situation where the release block 312 is pushed.

[0059] like Figure 1 , Figure 2 , Figure 8 and Figure 10 As shown, the support assembly also includes multiple support sleeves 313 fixedly connected to the inner sidewalls of the two support rings 31. There are two sets of support sleeves 313, and multiple support sleeves 313 are arranged in a circular array in each set. Each support sleeve 313 has a protrusion near the end connected to the support ring 31. The protrusion of the support sleeve 313 abuts against the outer edge protruding skeleton of the sealing ring 21. A support rod 314 is inserted inside each support sleeve 313. The end of the support rod 314 away from the inside of the support sleeve 313 has a protrusion. The protrusion of the support rod 314 abuts against the inner edge protruding skeleton of the sealing ring 21. A spring 315 is fixedly connected between each support rod 314 and the support sleeve 313.

[0060] During the locking process of the two support rings 31 by locking block 38 and locking block 311, locking sleeve 33 will cause support sleeve 313 to contact sealing ring 21. At the same time, the protrusion on support sleeve 313 will abut against the raised skeleton on the outer edge of sealing ring 21. Then, the operator pulls support rod 314, causing support rod 314 to move inside support sleeve 313 towards the center of the inner ring of bearing 1. The movement of support rod 314 will stretch spring 315. The movement of support rod 314 will cause the protrusion on it to abut against the raised skeleton on the inner edge of sealing ring 21. At this time, the protrusion of support sleeve 313 and protrusion of support rod 314 cooperate to achieve the desired effect. The ring is positioned and installed by the combination of sealing ring 21 and sealing ring 22. In addition, the two locking sleeves 33 are locked by locking block 38 and locking block 311. At the same time, the elastic reset action of spring 34 causes the locking rod 32 to drive the support sleeve 313 through the support ring 31 to press the sealing ring 21. This allows the sealing ring 21 and sealing ring 22 to be tightly attached to both sides of the bearing 1, further improving the sealing effect of the ring of sealing ring 21 and sealing ring 22 on the bearing 1. The external support pressing method can also avoid the problem of loosening, ensuring the stability of the ring after sealing ring 21 and sealing ring 22 are combined.

[0061] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. 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.

Claims

1. A sealing ring support structure, characterized in that, For use in sealing rings, the support structure includes a support assembly set on the outside of the bearing (1). The support assembly includes two support rings (31) set on both sides of the bearing (1). The two support rings (31) are fixedly connected to a set of locking rods (32) arranged in a ring array on the side close to each other. Each set of locking rods (32) is provided with multiple locking rods. Each locking rod (32) is fitted with a locking sleeve (33). Each locking sleeve (33) is fixedly connected to the corresponding locking rod (32) with a spring (34). The locking sleeves (33) and locking rods (32) are also provided with two sets, and the two sets of locking sleeves (33) correspond to each other. The support assembly also includes two extension plates (35) fixedly connected to one of the locking sleeves (33). Each of the two extension plates (35) is slidably connected to a movable rod (36). The ends of the two movable rods (36) that are far apart from each other are fitted with springs (37). The two ends of the springs (37) are fixedly connected to the extension plates (35) and the movable rods (36) respectively. The ends of the two movable rods (36) that are close to each other are fixedly connected with locking blocks (38). The sides of the two locking blocks (38) that are close to each other are set as inclined surfaces. The support assembly also includes a fixing seat (39) fixedly connected to another set of locking sleeves (33), a fixing rod (310) fixedly connected to the fixing seat (39), a locking block (311) fixedly connected to the end of the fixing rod (310) away from the fixing seat (39), and a release block (312) sleeved on the outer surface of the fixing rod (310); the side of the locking block (311) away from the fixing rod (310) is set as an arc-shaped slope, the edge of the locking block (311) near the fixing rod (310) is set as a rounded corner, the edge of the release block (312) away from the fixing seat (39) is set as a rounded corner, and the side of the release block (312) near the fixing seat (39) is set as an arc-shaped slope; The sealing ring includes a bearing (1), which is composed of an inner ring, an outer ring and balls. Multiple protective blocks (11) are fixedly connected to the outer surface of the outer ring of the bearing (1). Sealing components are provided on both sides of the bearing (1). The sealing components include two sets of sealing rings (21) that fit against both sides of the bearing (1). Multiple sealing rings (21) are arranged in a ring array in each set. A sealing ring (22) is fixedly connected between every two sealing rings (21) in each set. An oil injection hole (23) is opened on each sealing ring (21). A one-way plate (24) is fixedly connected to the inner wall of each oil injection hole (23). A retaining block (25) is fixedly connected to the surface of each sealing ring (21). Multiple retaining blocks (25) are arranged in a ring array. The material of sealing ring one (21) is hard rubber, and the material of sealing ring two (22) is soft rubber. After sealing ring one (21) and sealing ring two (22) are combined, they form two ring-shaped rings. The inner and outer edges of the rings formed by sealing ring one (21) and sealing ring two (22) are provided with raised skeletons. The raised skeletons on the outer edges of sealing ring one (21) and sealing ring two (22) are in contact with the outer ring surface of bearing (1), and the raised skeletons on the inner edges of sealing ring one (21) and sealing ring two (22) are in contact with the inner ring surface of bearing (1). The one-way sheet (24) is composed of four fan-shaped rubber plates. The one-way sheet (24) can only bend elastically to one side of the retaining block (25). The diameter of the oil injection hole (23) is the same as the size of the existing syringe needle. Each retaining block (25) has a hole. The hole of the retaining block (25) is connected to the inside of the oil injection hole (23). The side of the retaining block (25) away from the sealing ring (21) is adapted to the ball shape of the bearing (1). The support assembly also includes multiple support sleeves (313) fixedly connected to the inner sidewalls of the two support rings (31). There are two sets of support sleeves (313), and multiple support sleeves (313) are arranged in a ring array in each set. A support rod (314) is inserted inside each support sleeve (313), and a spring (315) is fixedly connected between each support rod (314) and the support sleeve (313).

2. The sealing ring support structure according to claim 1, characterized in that, Each support sleeve (313) has a protrusion near the end connected to the support ring (31). The protrusion of the support sleeve (313) abuts against the outer edge protruding skeleton of the sealing ring (21). The support rod (314) has a protrusion at the end away from the inside of the support sleeve (313). The protrusion of the support rod (314) abuts against the inner edge protruding skeleton of the sealing ring (21).

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