Framework oil seal structure

Abstract

The utility model provides a framework oil seal structure, and relates to the technical field of sealing elements, the framework oil seal structure comprises a sealing main body, an elastic element and a Glyd ring, the inner side of the sealing main body is provided with a sealing lip, and a buffer groove is formed between the sealing lip and the sealing main body; a sealing part is arranged outside the sealing main body; the elastic piece is located in the buffer groove; the sealing lip is located on the inner side of the sealing body and plays a main sealing role. The sealing part is arranged on the outer side of the sealing main body and plays a secondary sealing role, sealing can be carried out according to the working condition with the high radial surface roughness, and the leakage condition can be eradicated; the glyd ring is arranged on the inner side of the sealing body so as to enhance the sealing effect on the inner side of the sealing body, and the double-sealing protection effect is achieved. For a product with large radial runout, the glyd ring can play a guiding role to protect the sealing lip, and the service life of the framework oil seal structure is prolonged; and the sealing lip, the glyd ring and the sealing part play a bidirectional sealing role.

Description

Technical Field

[0001] This utility model relates to the technical field of sealing components, specifically to a skeleton oil seal structure. Background Technology

[0002] Skeleton oil seals are widely used in mechanical equipment. Through the tight fit between the sealing material and the contact surface, they prevent the leakage of media such as lubricating oil, gas, dust or water, while reducing friction and wear and extending the service life of the equipment.

[0003] The skeleton oil seal structure in the relevant technology can only prevent medium leakage on one side, while it cannot effectively prevent medium penetration on the other side, and cannot meet the requirements of bidirectional sealing. Utility Model Content

[0004] To address the aforementioned problems, the purpose of this invention is to provide a skeleton oil seal structure that can meet the requirements of bidirectional sealing.

[0005] To achieve the above objectives, this utility model provides a skeleton oil seal structure, comprising:

[0006] A sealing body is provided with a sealing lip on its inner side, and a buffer groove is formed between the sealing lip and the sealing body; a sealing part is provided on the outer side of the sealing body.

[0007] The elastic element is located within the buffer groove;

[0008] A Gladley ring is disposed on the inner side of the sealing body.

[0009] The sealing lip is located on the inner side of the sealing body and plays the primary sealing role. The sealing part is located on the outer side of the sealing body and plays a secondary sealing role. It can seal the surface with high roughness and prevent leakage. The elastic element is located in the buffer groove. The elastic element can provide continuous pressure to keep the sealing lip tightly against the shaft surface to ensure the sealing effect and prevent leakage of oil or other media. The Glyd ring is located on the inner side of the sealing body to enhance the sealing effect on the inner side of the sealing body and achieve a double sealing protection. For products with large radial runout, the Glyd ring can play a guiding role to protect the sealing lip and improve the service life of the skeleton oil seal structure. The sealing lip, Glyd ring and sealing part play a bidirectional sealing role.

[0010] According to another specific embodiment of the present invention, the Glyd ring is a rotating Glyd ring for shaft use.

[0011] According to another specific embodiment of the present invention, the sealing body is provided with a first fixing groove at the lower end of the sealing lip, and the Gladley ring is located in the first fixing groove.

[0012] According to another specific embodiment of the present invention, the sealing lip is provided with a second fixing groove on the side near the sealing body, and the elastic member is disposed in the second fixing groove.

[0013] According to another specific embodiment of the present invention, the sealing body is provided with an avoidance step on the side near the sealing lip, and the avoidance step is used to avoid the elastic element.

[0014] According to another specific embodiment of the present invention, the sealing part is an O-ring.

[0015] According to another specific embodiment of the present invention, the sealing part includes a first lip and a second lip disposed opposite to each other, and a reflux hole is formed between the first lip and the second lip.

[0016] The present invention will now be described in further detail with reference to the accompanying drawings. Attached Figure Description

[0017] Figure 1 This is a three-dimensional structural diagram of the skeleton oil seal structure provided in this embodiment of the utility model;

[0018] Figure 2 This is a schematic diagram of the internal structure of the skeleton oil seal structure provided in another embodiment of this utility model.

[0019] Figure label:

[0020] 100. Sealing body; 110. Sealing lip; 120. Buffer groove; 130. Sealing part; 131. First lip; 132. Second lip; 133. Return hole; 140. First fixing groove; 150. Second fixing groove; 160. Clearance step;

[0021] 200. Elastic components;

[0022] 300. Graeme Circle. Detailed Implementation

[0023] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0024] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this utility model, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0025] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0026] In this utility model, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0027] It should be noted that when an element is referred to as being "fixed to" or "set on" another element, it can be directly on the other element or there may be an intervening element. When an element is considered to be "connected to" another element, it can be directly connected to the other element or there may be an intervening element. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only possible implementation.

[0028] This embodiment provides a skeleton oil seal structure, such as Figure 1 As shown, the device includes a sealing body 100, an elastic element 200, and a Glyd ring 300. The inner side of the sealing body 100 is provided with a sealing lip 110, and a buffer groove 120 is formed between the sealing lip 110 and the sealing body 100. The outer side of the sealing body 100 is provided with a sealing part 130. The elastic element 200 is located in the buffer groove 120. The Glyd ring 300 is disposed on the inner side of the sealing body 100.

[0029] The sealing lip 110 is located inside the sealing body 100 and plays a primary sealing role. The sealing part 130 is located outside the sealing body 100 and plays a secondary sealing role, which can seal the surface with high roughness and prevent leakage. The elastic element 200 is located in the buffer groove 120 and can provide continuous pressure to keep the sealing lip 110 tightly against the shaft surface to ensure the sealing effect and prevent leakage of oil or other media. The Glyd ring 300 is located inside the sealing body 100 to enhance the sealing effect inside the sealing body 100 and achieve double sealing protection. For products with large radial runout, the Glyd ring 300 can play a guiding role to protect the sealing lip 110 and improve the service life of the skeleton oil seal structure. The sealing lip 110, Glyd ring 300 and sealing part 130 play a bidirectional sealing role.

[0030] Generally, the sealing lip 110 extends along the circumferential direction of the sealing body 100 to improve the sealing effect.

[0031] In some embodiments, the Glyd ring 300 is a rotating Glyd ring 300 for shafts. The rotating Glyd ring 300 for shafts effectively prevents leakage of oil, lubricant, or other media by sealing the gap between the shaft and the external environment; and the rotating Glyd ring 300 for shafts can provide stable sealing performance, avoiding unnecessary friction between the shaft and the sealing body 100, thereby reducing wear.

[0032] In some embodiments, the sealing body 100 is provided with a first fixing groove 140 at the lower end of the sealing lip 110, and the Glyd ring 300 is located in the first fixing groove 140; the Glyd ring 300 can be fixed by the first fixing groove 140, so that the relative position of the Glyd ring 300 and the sealing lip 110 remains unchanged, so as to ensure the sealing effect of the Glyd ring 300 and the sealing lip 110.

[0033] In some embodiments, the sealing lip 110 has a second fixing groove 150 on the side near the sealing body 100, and the elastic member 200 is disposed in the second fixing groove 150. The elastic member 200 is fixed by the second fixing groove 150, so that after the elastic member 200 is deformed by force, the elastic force of the elastic member 200 can directly act on the sealing lip 110 to ensure that the sealing lip 110 is tightly attached to the shaft surface. Generally, the elastic member 200 is a stainless steel spring.

[0034] In some embodiments, the sealing body 100 is provided with a clearance step 160 on the side near the sealing lip 110. The clearance step 160 is used to avoid the elastic member 200, so as to facilitate the installation of the elastic member 200 into the buffer groove 120.

[0035] In some embodiments, the sealing part 130 is an O-ring; the main function of the O-ring is to prevent leakage of media (such as liquids, gases, lubricating oils, etc.). The O-ring ensures a tight seal between the fitting shaft and the sealing body 100 by adapting to the gap, thereby preventing external contaminants from entering the system and avoiding leakage of internal media; the O-ring can work effectively under certain pressure to maintain a tight sealing performance.

[0036] In some embodiments, such as Figure 2 As shown, the sealing part 130 includes a first lip 131 and a second lip 132 disposed opposite to each other, with a reflux hole 133 formed between the first lip 131 and the second lip 132. The sealing effect of the sealing part 130 can be improved through the first lip 131 and the second lip 132. If the pressure difference between the inside and outside of the skeleton oil seal structure is large, it may cause the sealing ring to deform or fail. The reflux hole 133 can balance the pressure difference between the inside and outside of the skeleton oil seal structure, preventing the sealing ring from being excessively squeezed or stretched. The reflux hole 133 allows fluid to flow back from the inside of the skeleton oil seal structure, thereby preventing seal failure. The reflux hole 133 ensures that the skeleton oil seal structure maintains optimal sealing condition in different working environments, avoiding seal failure caused by internal and external pressure differences.

[0037] While the present invention has been disclosed above with reference to preferred embodiments, it is not intended to limit the scope of the present invention. Any person skilled in the art may make some modifications without departing from the scope of the present invention; that is, all equivalent modifications made in accordance with the present invention should be covered by the scope of the present invention.

Claims

1. A skeleton oil seal structure characterized by, The application relates to a seal body, which comprises a seal lip on the inner side of the seal body, a buffer groove formed between the seal lip and the seal body, a seal part on the outer side of the seal body, an elastic piece in the buffer groove, and a garter spring on the inner side of the seal body. The garter spring is a rotating garter spring for a shaft. The seal body is provided with a first fixing groove at the lower end of the seal lip, and the garter spring is located in the first fixing groove. The seal lip is provided with a second fixing groove on the side close to the seal body, and the elastic piece is located in the second fixing groove.

2. The skeleton oil seal structure according to claim 1, wherein The seal body is provided with an avoiding step on the side close to the seal lip, which is used for avoiding the elastic piece.

3. The skeleton oil seal structure of claim 1, wherein The seal part is an O-shaped ring.

4. The skeleton oil seal structure of claim 1, wherein The seal part comprises oppositely arranged first and second lips, and a backflow hole is formed between the first and second lips.

5. The skeleton oil seal structure of claim 1, wherein ​ 6. The skeleton oil seal structure according to any one of claims 1 to 5, wherein ​ 7. The skeleton oil seal structure according to any one of claims 1 to 5, wherein ​

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