Corrosion-resistant rubber framework oil seal for automobile

Abstract

The corrosion-resistant rubber framework oil seal for the automobile comprises sealing rubber, a framework groove is formed in the sealing rubber, a framework is fixedly arranged in the framework groove, a sealing ring is connected to the bottom end in the sealing rubber, a sealing lip is arranged in the position, close to the upper end, of the sealing ring, and the sealing lip is connected with the framework. A spring groove is formed in the side, away from the sealing lip, of the upper end of the sealing ring, a spiral spring is arranged in the spring groove, and a dustproof lip inclining outwards is arranged at the bottom end in the sealing ring. Continuous radial pressure is provided after the spiral spring is installed, the sealing effect is ensured, the tongue plate arranged at the spring groove can effectively clamp the spiral spring, the spiral spring is still kept in the spring groove and is not prone to falling off even under the action of external centrifugal force, and the sealing effect is good. And the sealing rubber and the sealing ring are made of fluororubber, so that excellent high-temperature resistance and corrosion resistance are achieved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of skeleton oil seal, specifically is a kind of automobile corrosion-resistant rubber skeleton oil seal. BACKGROUND

[0002] The main function of automobile rubber skeleton oil seal is to isolate the parts needing lubrication in transmission components from the external environment, to prevent lubricating oil leakage. The skeleton oil seal, through its structural design and material properties, ensures effective sealing under various working conditions, prevents lubricating oil leakage, and prevents external impurities such as dust and sand from entering the mechanical interior.

[0003] Some automobile rubber skeleton oil seals do not have a spring groove to protect the spiral spring, which can easily cause the spiral spring to fall off under the action of external centrifugal force, resulting in sealing failure. Therefore, it does not meet the current needs, and for this purpose, we propose a kind of automobile corrosion-resistant rubber skeleton oil seal. UTILITY MODEL CONTENT

[0004] The utility model aims at providing a kind of automobile corrosion-resistant rubber skeleton oil seal to solve the problem of automobile rubber skeleton oil seal spring groove without protecting spiral spring, which can easily cause the spiral spring to fall off under the action of external centrifugal force, resulting in sealing failure.

[0005] To achieve the above purpose, the utility model provides the following technical scheme: a kind of automobile corrosion-resistant rubber skeleton oil seal, including sealing rubber, the inside of the sealing rubber is provided with skeleton groove, the inside of the skeleton groove is fixedly provided with skeleton, the inside bottom end of the sealing rubber is connected with sealing ring, the inside of the sealing ring near upper end is provided with sealing lip, the upper end of the sealing ring is provided with spring groove on the side away from sealing lip, the inside of the spring groove is provided with spiral spring, the bottom end of the inside of the sealing ring is provided with inclined outward dust lip.

[0006] Preferably, the outer diameter of the spiral spring is the same size as the inner diameter of the spring groove, and forms an embedded structure.

[0007] Preferably, the outer surface of the sealing ring, and the side of the spring groove bottom end is fixedly connected with tongue plate, and the tongue plate is inclined upward.

[0008] Preferably, the inside of the bottom end of the sealing rubber is equidistantly provided with a plurality of disassembly grooves.

[0009] Preferably, the material of the sealing rubber and the sealing ring is fluorine rubber.

[0010] Compared with the prior art, the utility model has the beneficial effects that:

[0011] 1. This utility model installs the sealing ring inside the sealing rubber on the outside of the rotating shaft, and the skeleton plays a reinforcing role, so that the oil seal can maintain its shape and tension. Then, the helical spring provides continuous radial pressure after installation to ensure the sealing effect. The tongue plate set at the spring groove can effectively clamp the helical spring. Even under the action of external centrifugal force, the helical spring will still remain in the spring groove and will not easily fall off. Furthermore, the sealing rubber and the sealing ring are both made of fluororubber. Fluororubber has excellent high temperature resistance and corrosion resistance, with a temperature range of over 300°C, and excellent corrosion resistance to a variety of chemical substances.

[0012] 2. This utility model has a disassembly groove on the inner side of the bottom of the sealing rubber, which allows the oil seal to be pried out directly by inserting a hook into the disassembly groove, avoiding the need to re-drill holes when disassembling the skeleton oil seal, which could lead to accidental damage to the rotating shaft. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0014] Figure 2 This is a front sectional view of the entire utility model;

[0015] Figure 3 This utility model Figure 2 A schematic diagram of the structure at point A in the middle.

[0016] In the diagram: 1. Sealing rubber; 101. Skeleton groove; 102. Disassembly groove; 2. Sealing ring; 201. Spring groove; 3. Skeleton; 4. Dustproof lip; 5. Sealing lip; 6. Helical spring; 7. Tongue plate. Detailed Implementation

[0017] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0018] Please see Figures 1 to 3 An embodiment of this utility model provides a corrosion-resistant rubber skeleton oil seal for automobiles, comprising a sealing rubber 1, a skeleton groove 101 inside the sealing rubber 1, a skeleton 3 fixedly installed inside the skeleton groove 101, a sealing ring 2 connected to the bottom of the sealing rubber 1, a sealing lip 5 inside the sealing ring 2 near the upper end, a spring groove 201 on the upper end of the sealing ring 2 away from the sealing lip 5, a helical spring 6 installed inside the spring groove 201, and an outwardly inclined dustproof lip 4 at the bottom of the sealing ring 2.

[0019] The outer diameter of the helical spring 6 is the same as the inner diameter of the spring groove 201, forming an embedded structure. The outer surface of the sealing ring 2 and one side of the bottom end of the spring groove 201 are fixedly connected to a tongue plate 7, which is inclined upward. The helical spring 6 provides continuous radial pressure after installation to ensure the sealing effect. The tongue plate 7 at the spring groove 201 can effectively clamp the helical spring 6, so that the helical spring 6 remains in the spring groove 201 even under the action of external centrifugal force and is not easy to fall off.

[0020] Both the sealing rubber 1 and the sealing ring 2 are made of fluororubber. Fluororubber has excellent high temperature resistance and corrosion resistance, with a temperature range of over 300°C. It also has excellent corrosion resistance to a variety of chemicals. Several disassembly grooves 102 are evenly spaced on the inner side of the bottom of the sealing rubber 1. The oil seal can be pried out by inserting a hook into the disassembly groove 102, thus avoiding the need to re-drill holes when disassembling the skeleton oil seal, which could lead to accidental damage to the rotating shaft.

[0021] When using a corrosion-resistant rubber skeleton oil seal for automobiles, the sealing ring 2 inside the sealing rubber 1 is installed on the outside of the rotating shaft. The skeleton 3 provides reinforcement and ensures that the oil seal maintains its shape and tension. Then, the coil spring 6 provides continuous radial pressure after installation to ensure the sealing effect. The tongue plate 7 set at the spring groove 201 can effectively hold the coil spring 6. Even under the action of external centrifugal force, the coil spring 6 remains in the spring groove 201 and is not easy to fall off. Furthermore, both the sealing rubber 1 and the sealing ring 2 are made of fluororubber, which has excellent high temperature resistance and corrosion resistance, with a temperature range of over 300°C and excellent corrosion resistance to a variety of chemicals. Through the disassembly groove 102 opened on the inner side of the bottom of the sealing rubber 1, the oil seal can be directly pried out by inserting a hook into the disassembly groove 102, avoiding the need to re-drill holes when disassembling the skeleton oil seal, which could lead to accidental damage to the rotating shaft.

[0022] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A corrosion-resistant rubber skeleton oil seal for automobiles, comprising sealing rubber (1), characterized in that: The sealing rubber (1) has a skeleton groove (101) inside, and a skeleton (3) is fixed inside the skeleton groove (101). A sealing ring (2) is connected to the bottom of the sealing rubber (1). A sealing lip (5) is provided inside the sealing ring (2) near the top. A spring groove (201) is provided on the side of the upper end of the sealing ring (2) away from the sealing lip (5). A helical spring (6) is provided inside the spring groove (201). A dustproof lip (4) is provided at the bottom of the sealing ring (2) with an outward tilt. The outer diameter of the helical spring (6) is the same as the inner diameter of the spring groove (201), and they form an embedded structure; the outer surface of the sealing ring (2) and the side located at the bottom of the spring groove (201) are fixedly connected to a tongue plate (7), and the tongue plate (7) is inclined upward.

2. The automotive corrosion-resistant rubber skeleton oil seal according to claim 1, characterized in that: The sealing rubber (1) has several disassembly grooves (102) evenly spaced on the inner side of its bottom end.

3. The automotive corrosion-resistant rubber skeleton oil seal according to claim 1, characterized in that: The sealing rubber (1) and the sealing ring (2) are both made of fluororubber.

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