A rubber seal skeleton ring connecting support structure

Abstract

The utility model discloses a rubber sealing element framework ring joint support structure, it includes metal framework, the surface of metal framework is evenly distributed and is equipped with a plurality of through -holes, and metal framework opposite setting first and last two ends form annular structure, the first and last two ends of metal framework are connected with each other through metal framework lock catch, and the part except first and last two ends of metal framework is covered with main body rubber, and the part of first and last two ends of metal framework is covered with joint rubber. The utility model discloses framework structure has metal framework support, and outside has rubber coverage simultaneously, can satisfy the product structure form of subsequent two kinds of rubber combination, and simultaneously, the product framework structure form can continuous production, and the final product can be cut off through arbitrary length, then through the joint of ring joint joint is connected to the joint of cutting, and finally through filling the excess rubber material and covering the ring joint joint, it is strong operability, and simultaneously, the product framework cross section form can be adjusted according to actual demand.

Description

Technical Field

[0001] This utility model relates to a ring-connected support structure for a rubber seal skeleton, belonging to the field of rubber sealing. Background Technology

[0002] Sealing is a key component of engineering equipment, ensuring effective barrier protection between the sealed and unsealed media. Due to the rapid development of the wind power industry in recent years, seals used in wind turbines have also seen significant advancements, particularly those for yaw and pitch control. However, the complex operating conditions of wind power generation, including varying wind speeds and directions, rain, dust, ultraviolet radiation, and ozone, place higher demands on the seals used, posing a major challenge to their development.

[0003] Driven by the rapid development of the wind power market, people are constantly putting forward higher requirements for wind power generation, and are beginning to develop more stable and larger megawatt-class wind turbines. The requirements for the seals used are also constantly increasing, especially the seals used in yaw and pitch bearings.

[0004] Because wind turbines are typically installed in harsh environments such as mountains, hills, coastlines, and deserts, the maintenance and replacement costs of the seals are high. Since yaw and pitch bearings mostly use pure rubber seals with consistent cross-sections, these products can be manufactured using three methods: one-time molding of the entire ring, segmented continuous molding vulcanization, and continuous extrusion vulcanization followed by hot welding. One-time molding vulcanization of the entire ring produces products with excellent consistency in appearance, dimensions, and performance, and a very high production pass rate. However, this process is limited by product size, especially when a metal frame is required for support. As the product size increases, the corresponding metal frame needs to be enlarged accordingly. Producing large-size frames presents significant challenges for both equipment and molds, making it difficult to meet the diameter requirements of larger megawatt-level seals. Segmented continuous compression molding vulcanization places extremely high demands on each segment of the vulcanization process. This requires highly skilled personnel, precise temperature control in the vulcanization equipment, and accurate assessment of the properties of the raw rubber compound. A problem in any segment's vulcanization ring will render the entire vulcanized product unusable, resulting in high production costs for this method. Products manufactured using continuous extrusion vulcanization followed by heat-sealing of the joint offer advantages such as production consistency and stability. Furthermore, identical product cross-sections can be cut to the required length, ensuring that seals of different diameters installed on the same bearing have identical cross-sections. However, because the two cut joints need to be heat-sealed during the rounding process, this method results in a heat-sealed joint in the product. The strength of this joint is crucial to the product's performance throughout its entire lifespan. Therefore, the seal needs superior anti-detachment performance and a longer service life, posing a greater challenge to the product structure.

[0005] The product structure of this application is developed for products that are continuously extruded and preformed, then have a ring-bonded skeleton structure, and finally molded and vulcanized with a second type of rubber compound. The structure of the skeleton is one of the important factors affecting the strength of vulcanized rubber products. Utility Model Content

[0006] The purpose of this invention is to provide a high-strength support structure for the ring connection of a rubber seal skeleton, which enhances the support strength of the seal skeleton and achieves high reliability after the rubber seal skeleton is installed.

[0007] To achieve the above objectives, the technical solution adopted by this utility model is: a high-strength support structure for a rubber sealing component skeleton ring connection, which includes a metal skeleton. Multiple through holes are evenly distributed on the surface of the metal skeleton, and the two ends of the metal skeleton are arranged opposite each other to form a ring structure. The two ends of the metal skeleton are connected to each other by a metal skeleton buckle. The part of the metal skeleton except for the two ends is covered with the main body rubber, and the part of the two ends of the metal skeleton is covered with the joint rubber.

[0008] Furthermore, the metal frame buckle is provided with rivet holes, and the metal frame buckle is fixedly connected to the two ends of the metal frame by rivets.

[0009] Furthermore, the lower end of the joint rubber is open, which facilitates the insertion of both ends of the metal skeleton into the joint rubber.

[0010] Furthermore, the two ends of the joint rubber are in contact with and connected to the two ends of the main body rubber.

[0011] In summary, this skeleton structure features a metal frame support and an external rubber cover, accommodating the product structure of two subsequent rubber combinations. Furthermore, this skeleton structure can be continuously produced, and the final product can be cut to any length. The cut joints are then connected via a ring joint, and excess rubber is used to cover the ring joint. This design offers high operability, and the cross-sectional shape of the skeleton can be adjusted according to actual needs, allowing the two joints to be re-cured together under the action of the vulcanizing rubber sheet.

[0012] The beneficial effects of this utility model are as follows:

[0013] The structure of this invention can produce preformed products of any length through continuous extrusion.

[0014] The structure of this invention can achieve a combination of two different adhesives. Depending on the usage conditions, different formulations are selected for the skeleton support adhesive and the lip adhesive.

[0015] The skeleton structure of this invention has a perforated surface (which can be expanded into various structures), and the holes are eventually filled with rubber. After vulcanization, the load-bearing capacity of the rubber and the skeleton is increased.

[0016] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the assembly of the metal and rubber skeleton; where (a) is the main view after assembly, and (b) is the sectional view along line AA of (a).

[0018] Figure 2 It is an exploded view of the metal and rubber skeleton;

[0019] Figure 2 The markings are as follows: A1 is the high-hardness main rubber ring, A2 is the embedded porous metal skeleton, A3 is the riveted joint, A4 is the metal skeleton lock, and A5 is the high-hardness joint rubber at the joint (the rubbers corresponding to 1 and 5 can be the same or different rubber materials according to actual needs). Detailed Implementation

[0020] The present invention will now be described in detail with reference to the accompanying drawings and specific embodiments.

[0021] like Figure 1 and 2 A high-strength support structure for a rubber seal skeleton ring is provided, comprising a metal skeleton A2, wherein multiple through holes are evenly distributed on the surface of the metal skeleton A2, and the two ends of the metal skeleton A2 are arranged opposite each other to form a ring structure. The two ends of the metal skeleton A2 are connected to each other by a metal skeleton buckle A4. The portion of the metal skeleton A2 excluding the two ends is covered with a main body rubber A1, and the portion of the metal skeleton at the two ends is covered with a joint rubber A5.

[0022] In this embodiment, the metal frame buckle A4 is provided with rivet holes, and the metal frame buckle A4 and the two ends of the metal frame A2 are fixedly connected to each other by rivets.

[0023] In this embodiment, the lower end of the connector rubber A5 is open, facilitating the insertion of both ends of the metal skeleton A2 into the connector rubber A5. After installation, both ends of the connector rubber A5 contact and mate with both ends of the main body rubber A1.

[0024] The principle of this invention is as follows: First, a pre-formed rubber material of the required length is cut according to the product dimensions. The rubber ends are removed, leaving only the metal skeleton. Then, the metal ends are fitted onto the metal buckles A4, aligning the holes of the metal buckles and the metal skeleton. Next, a riveting connector A3 is inserted into the exposed holes, connecting the two ends of the metal skeleton by riveting to form a ring shape. Finally, the rubber material A5 at the connector is secured to the connector to form a ring shape. Figure 1 The skeleton ring structure shown is then combined with other rubber materials to form a sealed product through compression molding and vulcanization.

[0025] In summary, this type of rubber product, through the ring-joint skeleton and rubber seal processed by this method, can ensure the consistency and stability of the joint and guarantee high interface strength. At the same time, this structure is very user-friendly for most researchers when developing new products, as it greatly reduces the difficulty of operation.

[0026] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that the above embodiments do not limit the scope of protection of this utility model in any way, and all technical solutions obtained by equivalent substitution or other means fall within the scope of protection of this utility model.

[0027] The parts not covered in this utility model are the same as or can be implemented using existing technologies.

Claims

1. A rubber seal skeleton ring support structure, characterized in that, The device includes a metal frame with multiple through holes evenly distributed on its surface. The two ends of the metal frame are arranged opposite each other to form a ring structure. The two ends of the metal frame are connected to each other by metal frame buckles. The part of the metal frame excluding the two ends is covered with a main body rubber, and the part of the two ends of the metal frame is covered with a joint rubber.

2. The rubber seal skeleton ring support structure according to claim 1, characterized in that, The metal frame buckle has rivet holes, and the metal frame buckle is fixedly connected to the two ends of the metal frame by rivets.

3. The rubber seal skeleton ring support structure according to claim 1, characterized in that, The lower end of the joint rubber is open, which facilitates the insertion of the metal skeleton into the joint rubber at both ends.

4. A rubber seal skeleton ring support structure according to claim 1 or 3, characterized in that, The two ends of the joint rubber are in contact with the two ends of the main body rubber.

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