Segmented pressing plate sealing structure

Abstract

The invention discloses a sectional type pressing plate sealing structure, and aims to reduce the manufacturing cost and ensure that the sealing performance is not affected, the structure comprises a plurality of sectional type pressing plates and a rubber seal, the sectional type pressing plates and the rubber seal are vulcanized and bonded together through an adhesive, the number of the sectional type pressing plates is multiple, and the number of the rubber seal is larger than the number of the sectional type pressing plates. All the sectional type pressing plates are mutually spliced to form an annular structure, all the sectional type pressing plates are installed on the sealing seat, and after the sectional type pressing plates are installed, sealing lips of the rubber seals below the sectional type pressing plates make contact with the rotating shaft. By means of the segmented combination mode, the production cost is reduced, and installation is easy and convenient; by adjusting the number of the segments, the scheme can adapt to bearings of different specifications, so that the inventory cost is reduced, and the market competitiveness is improved; and the segmented combination design simplifies the installation process, is convenient to maintain and replace, and further improves the operation efficiency of the equipment.

Description

Technical Field

[0001] The present invention belongs to the field of bearing seals, and particularly relates to a segmented pressing plate sealing structure. Background Art

[0002] In recent years, with the continuous progress of technology and the positive guidance of policies, wind power generation, as an important part of clean energy, has developed rapidly. Subsequently, the single-unit power of wind turbines has been significantly improved, which has led to an increase in the diameter size of the main shaft system sealing ring, directly resulting in a significant increase in the cost of the sealing ring. Summary of the Invention

[0003] The purpose of the present invention is to provide a segmented pressing plate sealing structure, which can effectively reduce the production cost of the sealing ring while ensuring the sealing performance.

[0004] To achieve the above purpose, the technical solution adopted by the present invention is: a segmented pressing plate sealing structure, which includes a segmented pressing plate and a rubber seal. The segmented pressing plate and the rubber seal are vulcanized and bonded together through an adhesive. The number of the segmented pressing plates is set to be multiple, and each segmented pressing plate is spliced with each other to form an annular structure. Each segmented pressing plate is installed on a sealing seat. After the segmented pressing plate is installed, the sealing lip of the rubber seal below it contacts the rotating shaft.

[0005] Further, through holes are opened on each segmented pressing plate, and the segmented pressing plate is fixed to the sealing seat through screws.

[0006] Further, one end of the segmented pressing plate is provided with a protrusion, and the other end is provided with a groove. Two segmented pressing plates are stacked together in a head-to-tail connection form.

[0007] Further, a sealing lip anti-detachment groove is provided on the side of the segmented pressing plate that fits the sealing seat, and one side of the upper end of the rubber seal is installed in the sealing lip anti-detachment groove.

[0008] Further, an interference sealing rib is provided on the side of the rubber seal that fits the sealing seat.

[0009] Further, the lower end of the rubber seal is wrapped around the bottom end of the segmented pressing plate.

[0010] Further, one end of the rubber seal is cut with a convex surface, and the other end is cut with a concave surface. Two adjacent rubber seals are spliced together through the convex surface and the concave surface.

[0011] The beneficial effects of the present invention are as follows: The present invention adopts a segmented pressing plate sealing structure. The rubber sealing end in this structure adopts a concave-convex surface design, which not only ensures the sealing effect, but also significantly reduces the production, mold and equipment costs by optimizing the segmented combination and dividing the circumference into multiple parts, making the installation more convenient. In addition, the number of segments of this structure can be flexibly adjusted according to actual needs to adapt to bearings of different specifications, further reducing the inventory cost while ensuring the sealing effect and enhancing the market competitiveness. Its unique segmented combination method not only simplifies the installation process, but also facilitates later maintenance and replacement, greatly improving the operation efficiency of the equipment.

[0012] Additional aspects and advantages of the present invention will be given in part in the following description, become apparent in part from the following description, or be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 is a schematic cross-sectional view of the segmented pressing plate sealing structure of the present invention;

[0014] Figure 2 、 Figure 3 are two installation schematic views of the segmented pressing plate sealing structure of the present invention;

[0015] Figure 4 is an assembly schematic view between two seals of the segmented pressing plate sealing structure of the present invention.

[0016] Figure 5 is a partial enlarged schematic view of the ends of two seals of the segmented pressing plate sealing structure of the present invention.

[0017] In the figure, the markings are: 10 - segmented pressing plate seal, 11 - pressing plate skeleton, 12 - pressing plate through hole, 13 - interference sealing rib, 14 - anti - detachment groove for sealing lip, 15 - rubber seal, 16 - sealing lip, 17 - sealing protrusion, 18 - sealing groove, 191 - concave surface, 192 - convex surface; 20 - segmented pressing plate seal mounting seat, 30 - segmented pressing plate seal rubbing rotating shaft. DETAILED DESCRIPTION OF THE INVENTION

[0018] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0019] As Figures 1 to 5 shown, a segmented pressing plate sealing structure includes a segmented pressing plate seal 10, a segmented pressing plate seal mounting seat 20, and a segmented pressing plate seal rubbing rotating shaft 30.

[0020] As shown Figures 1 to 5 in the figure, the segmented pressing plate seal 10 includes a pressing plate skeleton 11, a pressing plate through hole 12, an interference sealing rib 13, a sealing lip anti - detachment groove 14, a rubber seal 15, a sealing lip 16, a sealing protrusion 17 and a sealing groove 18. Among them, the pressing plate skeleton 11 serves as a support structure, which is designed firmly and can withstand the pressure and friction generated during the operation of the bearing. The pressing plate through holes 12 are evenly distributed to ensure a stable connection with the sealing seat 20 through screws and prevent loosening during high - speed operation. The setting of the interference sealing rib 13 increases the contact pressure between the sealing surfaces, effectively prevents the leakage of the medium, improves the sealing performance. The design of the sealing lip anti - detachment groove 14 effectively avoids the risk of the sealing lip 16 falling off during high - speed rotation, further enhancing the stability and reliability of the sealing structure. One end of the rubber seal 15 is cut with a convex surface 192 and the other end is cut with a concave surface 191. The two rubber seals that are butted together are spliced through the convex and concave surfaces, which not only ensures the sealing effect, but also divides the circumference into multiple parts through optimized segmented combination.

[0021] The close combination of the rubber seal 15 and the pressing plate skeleton 11 ensures the elasticity and wear resistance of the sealing lip 16, thus extending the service life of the sealing structure. The cooperative design of the sealing protrusion 17 and the sealing groove 18 enables the two segmented pressing plate seals to be closely stacked, forming a more effective sealing barrier and effectively preventing the leakage of the medium.

[0022] As shown Figures 2 to 3 in the figure, for the segmented pressing plate seal 10, the direction of its sealing lip 16 can be adjusted according to the actual situation.

[0023] The above shows and describes the basic principles, main features and advantages of the present invention. Those of ordinary skill in the art should understand that the above - mentioned embodiments do not limit the protection scope of the present invention in any form. Any technical solutions obtained by means of equivalent replacement and the like fall within the protection scope of the present invention.

[0024] Parts not involved in the present invention are the same as or can be implemented by using the prior art.

Claims

1. A segmented pressure plate sealing structure, characterized in that: It includes a segmented pressure plate and a rubber seal, wherein the segmented pressure plate and the rubber seal are bonded together by adhesive vulcanization, a plurality of segmented pressure plates are provided, and each segmented pressure plate is spliced ​​together to form a circular ring structure, each segmented pressure plate is installed on a sealing seat, and after the segmented pressure plate is installed, the sealing lip of the rubber seal below it contacts the rotating shaft.

2. A segmented pressure plate sealing structure according to claim 1, characterized in that: A through hole is provided on each segmented pressing plate, and the segmented pressing plate is fixed to the sealing seat by screws.

3. A segmented pressure plate sealing structure according to claim 1, characterized in that: A protrusion is arranged at one end of the segmented pressing plate, and a groove is arranged at the other end, and two segmented pressing plates are stacked together in an end-to-end manner.

4. A segmented pressure plate sealing structure according to claim 1, characterized in that: The segmented pressure plate is provided with a sealing lip anti-slip groove on one side that is in contact with the sealing seat, and one side of the upper end of the rubber seal is installed in the sealing lip anti-slip groove.

5. The segmented pressure plate sealing structure according to claim 1, characterized in that: The rubber seal is provided with an interference sealing rib on one side which is in contact with the sealing seat.

6. A segmented pressure plate sealing structure according to claim 1, characterized in that: The lower end of the rubber seal is coated on the bottom end of the segmented pressure plate.

7. The segmented pressure plate sealing structure according to claim 1, characterized in that: One end of the rubber seal is cut with a convex surface, and the other end is cut with a concave surface. The two rubber seals connected to each other are spliced ​​together through the convex surface and the concave surface.

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