Novel oil seal spiral sealing ring

Abstract

The utility model relates to the technical field of sealing rings, and discloses a novel oil seal spiral sealing ring which comprises a sealing ring body and an inner ring, the inner ring is fixedly connected to the upper portion of the sealing ring body, a through groove is formed in the upper side of the interior of the sealing ring body, and a fastening assembly is fixedly connected to the interior of the through groove. The fastening assembly is used for enabling the inner ring to be tightly attached to the shaft wall and comprises an upper sealing lip, the upper sealing lip is fixedly connected to the upper side of the outer wall of the inner ring, a connecting groove is formed in the upper sealing lip, a spring is arranged in the connecting groove in a sleeved mode, an internal thread is formed in the inner wall of the inner ring, and the spring is arranged in the connecting groove in a sleeved mode. Grooves are formed in the upper portion and the lower portion of the interior of the outer wall of the sealing ring body, and a rigid ring is fixedly connected to the interior of the sealing ring body. According to the sealing structure, the situation that oil leaks when the oil enters the space between the shaft and the internal threads is avoided, the sealing performance is ensured, the sealing ring is tightly connected with the shell and the shaft, and the situation that oil leaks due to the fact that equipment is loosened in the running process is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of sealing rings, in particular to a novel oil-sealed spiral sealing ring. Background Art

[0002] Oil seals are used to prevent the leakage of oil, lubricants, or other fluids, while also preventing dust, dirt, and moisture from entering mechanical components. They are widely used in automotive engines, transmissions, hydraulic systems, and industrial machinery to maintain proper operation and extend the life of the equipment.

[0003] The sealing ring is an annular cover composed of one or more parts, which is fixed on a ring or washer of the bearing and contacts with the other ring or washer or forms a narrow labyrinth gap to prevent lubricating oil leakage and foreign objects from intruding. However, the existing sealing rings are prone to loose sealing, resulting in leakage that affects equipment operation, causes resource waste and environmental pollution. Therefore, a new type of oil seal spiral sealing ring is proposed to solve the above problems. Utility Model Content

[0004] In order to make up for the above shortcomings, the utility model provides a new oil seal spiral sealing ring, which aims to improve the problem in the existing technology that the sealing ring is prone to poor sealing, resulting in leakage, affecting equipment operation, causing resource waste and environmental pollution.

[0005] In order to achieve the above-mentioned purpose, the present invention adopts the following technical solution: a new oil seal spiral sealing ring, including a sealing ring body and an inner ring, the inner ring is fixedly connected to the upper part of the sealing ring body, a through groove is opened on the upper side of the inner part of the sealing ring body, and a fastening component is fixedly connected to the inside of the through groove, and the fastening component is used to make the inner ring close to the shaft wall.

[0006] As a further description of the above technical solution:

[0007] An inner thread is provided on the inner wall of the inner ring, grooves are provided on the upper and lower inner sides of the outer wall of the sealing ring body, and a rigid ring is fixedly connected to the interior of the sealing ring body.

[0008] As a further description of the above technical solution:

[0009] The fastening assembly includes an upper sealing lip, which is fixedly connected to the upper side of the outer wall of the inner ring. A connecting groove is provided inside the upper sealing lip, and a spring is sleeved inside the connecting groove.

[0010] As a further description of the above technical solution:

[0011] The bottom of the inner wall of the through groove is fixedly connected with a lower sealing lip, and the lower sealing lip is fixedly connected to the bottom of the upper sealing lip.

[0012] As a further description of the above technical solution:

[0013] The upper sealing lip and the lower sealing lip are both made of silicone rubber.

[0014] As a further description of the above technical solution:

[0015] The inner ring is made of polyurethane rubber.

[0016] As a further description of the above technical solution:

[0017] The sealing ring body is made of fluororubber.

[0018] The utility model has the following beneficial effects:

[0019] 1. In the utility model, the inner ring is screwed into the interior of the housing so that the internal thread is connected to the shaft thread, so that the sealing ring body is fixed to the housing, and the sealing ring body is supported by the rigid ring so that the sealing ring body is tightly connected to the housing through the groove, and when the shaft squeezes the inner ring through the lower sealing lip, the lower sealing lip is made of silicone rubber, so that when it squeezes the lower sealing lip, it clings to the inner wall of the through groove and has elasticity, ensuring that the inner ring and the shaft are always tightly connected, realizing a tight connection between the sealing ring, the housing and the shaft, and avoiding loosening during equipment operation, which leads to oil leakage.

[0020] 2. In the present invention, the upper sealing lip and the spring are provided so that when the shaft presses the inner ring and the lower sealing lip at the same time, the upper sealing lip and the spring are squeezed at the same time, so that the inner ring is pressed against the sealing ring body, the upper sealing lip is squeezed and adheres to the inner wall of the through groove, and the tension of the spring makes the entire inner ring close to the shaft, thereby preventing oil from entering the space between the shaft and the internal thread and causing oil leakage, thereby ensuring sealing. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 A three-dimensional diagram of the novel oil seal spiral seal ring proposed in the utility model;

[0022] Figure 2 This is a cross-sectional view of the novel oil seal spiral seal ring proposed in the utility model;

[0023] Figure 3 for Figure 2 Enlarged view of point A in the middle.

[0024] Legend:

[0025] 1. Sealing ring body; 2. Groove; 3. Upper sealing lip; 4. Internal thread; 5. Inner ring; 6. Spring; 7. Connecting groove; 8. Lower sealing lip; 9. Rigid ring; 10. Through groove. DETAILED DESCRIPTION

[0026] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0027] Reference Figure 1 、 Figure 2 、 Figure 3 The utility model provides an embodiment: a new oil seal spiral sealing ring, including a sealing ring body 1 and an inner ring 5, the inner ring 5 is fixedly connected to the upper part of the sealing ring body 1, and a through groove 10 is opened on the inner upper side of the sealing ring body 1. A fastening component is fixedly connected to the inside of the through groove 10, and the fastening component is used to make the inner ring 5 close to the shaft wall; the fastening component includes an upper sealing lip 3, which is fixedly connected to the upper side of the outer wall of the inner ring 5, and a connecting groove 7 is opened inside the upper sealing lip 3. A spring 6 is sleeved inside the connecting groove 7; the inner ring 5 is made of polyurethane rubber; the sealing ring body 1 is made of fluororubber.

[0028] Through the upper sealing lip 3 and the spring 6 that are provided, when the shaft squeezes the inner ring 5 and the lower sealing lip 8 at the same time, the upper sealing lip 3 and the spring 6 are squeezed at the same time, so that the inner ring 5 is close to the sealing ring body 1. Because the inner ring 5 is made of polyurethane rubber, it has the advantages of high hardness, good strength, high elasticity, high wear resistance, tear resistance, aging resistance, ozone resistance, radiation resistance and good conductivity. The upper sealing lip 3 is squeezed and sticks to the inner wall of the through groove 10, and the tension of the spring 6 makes the entire section of the inner ring 5 close to the shaft, so that it prevents oil from entering the shaft and the internal thread 4 and causing oil leakage, thereby ensuring the sealing performance. The sealing ring body 1 is made of fluororubber, which is resistant to high temperature, oil, aging, high vacuum, acid and alkali, and various chemicals, thereby improving the service life of the sealing ring.

[0029] Reference Figure 1 、 Figure 2 、 Figure 3 The inner wall of the inner ring 5 is provided with an internal thread 4, and grooves 2 are provided on the upper and lower inner sides of the outer wall of the sealing ring body 1. A rigid ring 9 is fixedly connected to the inside of the sealing ring body 1; a lower sealing lip 8 is fixedly connected to the bottom of the inner wall of the through groove 10, and the lower sealing lip 8 is fixedly connected to the bottom of the upper sealing lip 3; the upper sealing lip 3 and the lower sealing lip 8 are both made of silicone rubber.

[0030] By screwing the inner ring 5 into the interior of the housing so that the internal thread 4 is connected to the shaft thread, the sealing ring body 1 is fixed to the housing, and the sealing ring body 1 is supported by the rigid ring 9 so that the sealing ring body 1 is tightly connected to the housing through the groove 2, and when the shaft squeezes the inner ring 5 through the lower sealing lip 8, the lower sealing lip 8 is made of silicone rubber, so that it has high and low temperature resistance, weather resistance, electrical properties and physical and mechanical properties, etc., so that when it squeezes the lower sealing lip 8, it is close to the inner wall of the through groove 10 and has elasticity, ensuring that the inner ring 5 is always tightly connected to the shaft, so that the sealing ring is tightly connected to the housing and the shaft, avoiding loosening during equipment operation and causing oil leakage.

[0031] Working principle: Screw the inner ring 5 into the housing so that the internal thread 4 is connected to the shaft thread, and the sealing ring body 1 is fixed to the housing. The sealing ring body 1 is supported by the rigid ring 9 so that the sealing ring body 1 is tightly connected to the housing through the groove 2. When the shaft squeezes the inner ring 5 through the lower sealing lip 8, the lower sealing lip 8 is made of silicone rubber, so when it squeezes the lower sealing lip 8, it clings to the inner wall of the through groove 10 and has elasticity, ensuring that the inner ring 5 is always tightly connected to the shaft, realizing a tight connection between the sealing ring, the housing and the shaft, and avoiding loosening during equipment operation, which may lead to oil leakage.

[0032] The upper sealing lip 3 and spring 6 are provided so that when the shaft squeezes the inner ring 5 and the lower sealing lip 8 at the same time, the upper sealing lip 3 and the spring 6 are squeezed at the same time, so that the inner ring 5 is close to the sealing ring body 1, and the upper sealing lip 3 is squeezed and sticks to the inner wall of the through groove 10. The tension of the spring 6 makes the entire inner ring 5 close to the shaft, thereby preventing oil from entering the space between the shaft and the internal thread 4 and causing oil leakage, thereby ensuring sealing.

[0033] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent replacements for some of the technical features therein. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A novel oil seal spiral seal ring, comprising a seal ring body (1) and an inner ring (5), characterized in that: The inner ring (5) is fixedly connected to the upper part of the sealing ring body (1); a through groove (10) is provided on the inner upper side of the sealing ring body (1); a fastening component is fixedly connected to the interior of the through groove (10); the fastening component is used to make the inner ring (5) close to the shaft wall.

2. The novel oil seal spiral seal ring according to claim 1 is characterized in that: An inner thread (4) is provided on the inner wall of the inner ring (5), grooves (2) are provided on the upper and lower sides of the outer wall of the sealing ring body (1), and a rigid ring (9) is fixedly connected to the interior of the sealing ring body (1).

3. The novel oil seal spiral seal ring according to claim 1 is characterized in that: The fastening assembly comprises an upper sealing lip (3), wherein the upper sealing lip (3) is fixedly connected to the upper side of the outer wall of the inner ring (5), a connecting groove (7) is provided inside the upper sealing lip (3), and a spring (6) is sleeved inside the connecting groove (7).

4. The novel oil seal spiral seal ring according to claim 1 is characterized in that: A lower sealing lip (8) is fixedly connected to the bottom of the inner wall of the through groove (10), and the lower sealing lip (8) is fixedly connected to the bottom of the upper sealing lip (3).

5. The novel oil seal spiral seal ring according to claim 3 is characterized in that: The upper sealing lip (3) and the lower sealing lip (8) are both made of silicone rubber.

6. The novel oil seal spiral seal ring according to claim 1 is characterized in that: The inner ring (5) is made of polyurethane rubber.

7. The novel oil seal spiral seal ring according to claim 1 is characterized in that: The sealing ring body (1) is made of fluororubber.

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