A fan bearing housing sealing device

Abstract

The utility model relates to the technical field of bearing seat, concretely is a fan bearing seat sealing device, including bearing seat, install in the bearing seat inside bearing and pass through the fan rotating shaft of bearing inner ring, the both sides of bearing seat are provided with the sealed part, and the sealed part end is provided with the mounting groove, still include two groups of sealing rings, and the sealing ring is by conical part and the two parts of connecting part constitute, the utility model discloses a sleeve ring is moved to the direction of being close to the inboard of sealed part through screwing the threaded connection on the sealed part, in this process, the contraction of sleeve ring inside will resist the conical part part on the sealing ring, and the conical part produces the tightening extrusion effect to the inside, makes the inside of sealing ring can keep with the surface of fan rotating shaft and resist the contact, and then can effectively prevent the air or water of outside from seeping into the bearing seat because of the abrasion of sealing ring, no longer need to frequently dismount and replace sealing ring, effectively improved the convenience of use.

Description

Technical Field

[0001] This utility model relates to the field of bearing housing technology, and more specifically, to a sealing device for a fan bearing housing. Background Technology

[0002] During the operation of wind turbine equipment, the bearing housing is an important component that supports the bearing and the wind turbine shaft.

[0003] To prevent dust and water from entering the bearing housing during use, a sealing ring is usually installed at the end of the bearing housing. The sealing ring seals the joint between the bearing housing and the shaft. However, the inner wall of the sealing ring will wear down during the rotation of the shaft. After long-term use, the sealing ring and the shaft will no longer be in close contact. Therefore, the worn sealing ring needs to be replaced more frequently, which is inconvenient. Utility Model Content

[0004] This utility model provides a sealing device for a fan bearing housing, which solves the technical problem in the prior art where the inner wall of the sealing ring is worn during the rotation of the shaft, and after long-term use, the sealing ring and the shaft cannot make close contact, requiring frequent replacement of the worn sealing ring.

[0005] In view of the above problems, the technical solution proposed by this utility model is as follows:

[0006] A fan bearing housing sealing device includes a bearing housing, a bearing installed inside the bearing housing, and a fan shaft passing through the inner ring of the bearing. Sealing portions are provided on both sides of the bearing housing, and mounting grooves are provided at the ends of the sealing portions. The device also includes two sets of sealing rings, each consisting of a conical portion and a connecting portion. The size of the connecting portion matches the mounting groove. A fixing component acting on the connecting portion is provided between the mounting groove and the connecting portion. The device further includes two sets of collars, each collar having a contraction portion inside that matches the conical portion.

[0007] Furthermore, the fixing component includes a set of cover rings and several sets of bolt rods fixedly connected inside the mounting groove. The connecting part and the cover rings are both provided with positioning holes corresponding to the bolt rods.

[0008] Furthermore, the inner wall of the collar is threadedly engaged with the outer wall of the sealing part, and a hexagonal ring is fixedly provided on the outer surface of the collar.

[0009] Furthermore, the bearing housing is composed of a lower housing and an upper housing joined together to form an integral structure. Bolt holes are provided on both sides of the lower housing, and connecting holes corresponding to the bolt holes are provided on both sides of the upper housing.

[0010] Furthermore, a base plate is fixedly connected to the bottom of the lower seat, and mounting holes are provided on both sides of the base plate.

[0011] Furthermore, the bearing housing is made of metal material, and the surface of the bearing housing is provided with an anti-corrosion coating.

[0012] Compared with the prior art, the beneficial effects of this utility model are as follows: When the inner wall of the sealing ring wears during the rotation of the fan shaft, the collar connected to the sealing part by the thread is turned to move it towards the inner side of the sealing part. During this process, the contraction part inside the collar will abut against the conical part on the sealing ring and exert an inward tightening and squeezing effect on the conical part, so that the inside of the sealing ring can keep in contact with the surface of the fan shaft. This can effectively prevent the air or water from the outside from seeping into the bearing seat due to the wear of the sealing ring. Therefore, while ensuring the sealing effect of the sealing ring, it is no longer necessary to frequently disassemble and replace the sealing ring, which effectively improves the convenience of use. Attached Figure Description

[0013] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained from these drawings without creative effort.

[0014] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0015] Figure 2 This is a schematic diagram showing the disassembled structure of the sealing part, sealing ring, and collar in this utility model;

[0016] Figure 3 This is a schematic diagram showing the disassembled structure of the lower seat and the upper seat in this utility model;

[0017] Figure 4 This is a cross-sectional structural diagram of the sealing ring and collar in this utility model.

[0018] In the diagram: 1. Bearing housing; 2. Bearing; 3. Fan shaft; 4. Sealing part; 5. Mounting groove; 6. Sealing ring; 7. Tapered part; 8. Connecting part; 9. Collar; 10. Contraction part; 11. Cover ring; 12. Bolt rod; 13. Positioning hole; 14. Hexagonal ring; 15. Lower seat body; 16. Upper seat body; 17. Bolt hole; 18. Connecting hole; 19. Base plate; 20. Mounting hole. Detailed Implementation

[0019] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0020] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0021] Please see Figure 1-4 A fan bearing housing sealing device includes a bearing housing 1, a bearing 2 installed inside the bearing housing 1, and a fan shaft 3 passing through the inner ring of the bearing 2. Sealing portions 4 are provided on both sides of the bearing housing 1, and mounting grooves 5 are provided at the ends of the sealing portions 4. It also includes two sets of sealing rings 6, each consisting of a conical portion 7 and a connecting portion 8. The size of the connecting portion 8 matches the mounting groove 5, allowing it to be embedded within the groove. A fixing component is provided between the mounting groove 5 and the connecting portion 8 to fix the connecting portion 8 embedded in the groove 5, thus ensuring that the sealing ring 6 is fixedly held at the end position of the sealing portion 4. When the fan shaft 3 passes through the inner ring of the bearing 2 fixed inside the bearing housing 1, the sealing ring 6 is securely held in place. The sealing ring 6, held at the end of the sealing part 4, can be nested on the surface of the fan shaft 3, thereby sealing the sealing parts 4 on both sides of the bearing housing 1 and the fan shaft 3. The device also includes two sets of collars 9. The inner wall of the collar 9 is threadedly engaged with the outer wall of the sealing part 4. Therefore, by rotating the collar 9, it can be screwed onto the sealing part 4, and the collar 9 can be moved towards the sealing part 4. The collar 9 has a contraction part 10 inside, which fits with the conical part 7. When the collar 9 moves towards the inside of the sealing part 4, the contraction part 10 inside will abut against the conical part 7 and gradually compress the conical part 7 inward, so that the inner wall of the sealing ring 6 can tightly abut against the surface of the fan shaft 3.

[0022] During use, the sealing ring 6 is fixed to the end position of the sealing part 4 by the fixing component. When the fan shaft 3 is passed through the fan shaft 3 which is fixed inside the bearing housing 1, the sealing ring 6 can be nested on the surface of the fan shaft 3, thereby sealing the joint between the fan shaft 3 and the sealing part 4, preventing external dust or water from entering the bearing housing 1 through the joint. When the fan shaft 3 wears on the inner wall of the sealing ring 6 during rotation, the collar 9 threaded to the sealing part 4 can be turned to move the collar 9 towards the end of the sealing part 4. As the ring moves towards the inner side of the sealing part 4, the contraction part 10 inside the collar 9 will abut against the conical part 7 on the sealing ring 6, and exert an inward tightening and squeezing effect on the conical part 7. Under this action, the inside of the sealing ring 6 can remain in contact with the surface of the fan shaft 3, thereby effectively preventing external air or water from seeping into the bearing housing 1 due to wear of the sealing ring 6. Therefore, while ensuring the sealing effect of the sealing ring 6, it is no longer necessary to frequently disassemble and replace the sealing ring 6, which effectively improves the convenience of use.

[0023] For further details, please refer to Figure 1-4 The fixing component includes a set of cover rings 11 and several sets of bolt rods 12 fixedly connected inside the mounting groove 5. The connecting part 8 and the cover ring 11 are both provided with positioning holes 13 corresponding to the bolt rods 12. The connecting part 8 on the sealing ring 6 is embedded into the inside of the mounting groove 5, and then the cover ring 11 is used to cover the connecting part 8. This allows several sets of bolt rods 12 to pass through the positioning holes 13 on the connecting part 8 and the cover ring 11 at the same time. After the nut is screwed onto the end of the bolt rod 12, the cover ring 11 can be pressed tightly on the outside of the connecting part 8, so that the connecting part 8 can be fixedly kept inside the mounting groove 5 and will not fall out.

[0024] For further details, please refer to Figure 1-4 A hexagonal ring 14 is fixedly provided on the outer surface of the collar 9. The hexagonal ring 14 makes it easy to use a wrench to hold the collar 9, thus making it easy to rotate and twist the collar 9.

[0025] For further details, please refer to Figure 1-4The bearing housing 1 is a whole structure formed by the butt joint of a lower housing 15 and an upper housing 16. Bolt holes 17 are provided on both sides of the lower housing 15, and connecting holes 18 corresponding to the bolt holes 17 are provided on both sides of the upper housing 16. When the lower housing 15 and the upper housing 16 are joined together, the bolt holes 17 and connecting holes 18 are aligned. Bolts are then passed through the bolt holes 17 and screwed into the connecting holes 18. The bolts securely connect the lower housing 15 and the upper housing 16 together. Alternatively, the lower seat 15 and the upper seat 16 can be separated by unscrewing the bolts out of the bolt holes 17 and the connecting holes 18, making it easier to disassemble and assemble the bearing 2 inside the bearing housing 1. In addition, the bottom of the lower seat 15 is fixedly connected to a base plate 19 for supporting the bearing housing 1 as a whole. The base plate 19 has mounting holes 20 on both sides. By passing screws through the mounting holes 20 and nailing them into the mounting holes, the bearing housing 1 can be fixed in place, preventing the fan shaft 3 from shaking during rotation.

[0026] For further details, please refer to Figure 1-4 The bearing housing 1 is made of metal materials such as cast steel or cast iron, which gives the bearing housing 1 high overall strength and makes it less prone to deformation. The surface of the bearing housing 1 is provided with an anti-corrosion coating to prevent the bearing housing 1 from rusting in the external environment, further ensuring the service life of the bearing housing 1.

[0027] The above are merely preferred embodiments of this utility model and are not intended to limit the scope of this utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A fan bearing housing sealing device, comprising a bearing housing (1), a bearing (2) installed inside the bearing housing (1), and a fan shaft (3) passing through the inner ring of the bearing (2), characterized in that, The bearing housing (1) is provided with sealing parts (4) on both sides, and the sealing parts (4) are provided with mounting grooves (5) at their ends. It also includes two sets of sealing rings (6). The sealing rings (6) are composed of two parts: a conical part (7) and a connecting part (8). The size of the connecting part (8) matches the mounting groove (5). A fixing component acting on the connecting part (8) is provided between the mounting groove (5) and the connecting part (8). The device also includes two sets of collars (9). The collars (9) are provided with a contraction part (10) that matches the conical part (7).

2. The fan bearing housing sealing device according to claim 1, characterized in that, The fixing component includes a set of cover rings (11) and several sets of bolt rods (12) fixedly connected inside the mounting groove (5). The connecting part (8) and the cover rings (11) are provided with positioning holes (13) corresponding to the bolt rods (12).

3. The fan bearing housing sealing device according to claim 1, characterized in that, The inner wall of the collar (9) is threadedly engaged with the outer wall of the sealing part (4), and a hexagonal ring (14) is fixedly provided on the outer surface of the collar (9).

4. The fan bearing housing sealing device according to claim 1, characterized in that, The bearing housing (1) is formed by connecting and splicing the lower housing (15) and the upper housing (16) together. The lower housing (15) has bolt holes (17) on both sides, and the upper housing (16) has connecting holes (18) on both sides corresponding to the bolt holes (17).

5. The fan bearing housing sealing device according to claim 4, characterized in that, The bottom of the lower seat (15) is fixedly connected to a base plate (19), and mounting holes (20) are provided on both sides of the base plate (19).

6. The fan bearing housing sealing device according to claim 1, characterized in that, The bearing housing (1) is made of metal material and the surface of the bearing housing (1) is provided with an anti-corrosion coating.

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