Oil seal convenient to install

Abstract

The utility model relates to the technical field of oil seals, and discloses an oil seal convenient to install, a split type structure is adopted, the oil seal is split into an oil seal main body and an inner ring sleeve, the inner ring sleeve is installed on the inner ring side of the oil seal main body in an embedded mode through a ring sleeve installation groove, and a sealing ring is arranged on the inner ring installation side of the inner ring sleeve. The inner ring sleeve has various sizes, the sealing ring is arranged in the middle of the inner ring sleeve, good structure installation sealing performance is achieved, the oil seal body and shaft columns of different sizes can be installed in a matched mode by replacing the inner ring sleeve in the using process, the installation adaptability and using flexibility of the oil seal are greatly improved, and the service life of the oil seal is prolonged. A mounting end seat is mounted on the rear portion of the oil seal body in an embedded mode, an inner supporting ring is arranged in the oil seal body, the mounting end seat is mounted on the rear portion of the oil seal body in an embedded and supported mode through an abutting-pushing protruding seat, and the lateral mounting support of the mounting end seat is matched with vertical supporting of the inner supporting ring. And the working installation stability of the oil seal can be effectively improved.

Description

Technical Field

[0001] This utility model relates to the field of oil seal technology, specifically to an oil seal that is easy to install. Background Technology

[0002] Oil seal is a common term for general sealing components. It is often used as a sealing structure in mechanical equipment. Oil seals are usually installed at the shaft mounting point of the machine. It isolates the lubricated parts of the transmission components from the output parts, and is used to prevent lubricating oil or other liquids from leaking out from the moving parts of the machine, and to prevent external impurities from entering the machine. It is a commonly used transmission sealing structure in mechanical structures.

[0003] In terms of structure, traditional oil seals are mostly single-unit structures. During installation, the oil seal is connected to the rotating shaft structure on the upper part of the machine through the mounting hole in the middle. Due to the limitation of the mounting hole diameter, existing oil seals can only be adapted to specific specifications of shafts. A single oil seal cannot meet the installation requirements of shafts of different sizes, which is very inconvenient to use. Therefore, an oil seal that is easy to install is proposed. Utility Model Content

[0004] The purpose of this invention is to provide an oil seal that is easy to install, so as to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: an oil seal that is easy to install, comprising an oil seal body, an inner ring sleeve, and a mounting end seat. The inner ring side of the oil seal body is provided with a ring sleeve mounting groove. The inner ring sleeve is fitted and installed on the inner ring side of the oil seal body through the ring sleeve mounting groove. A sealing ring is provided on the inner ring mounting side of the inner ring sleeve.

[0006] The oil seal body has an inner support ring inside, and side annular grooves are provided on both the front and rear sides of the oil seal body. The mounting end seat has a push-abutment on its side, and the mounting end seat is fitted and supported on the rear of the oil seal body by the push-abutment.

[0007] Preferably, the aforementioned ring mounting groove is formed in a ring shape on the inner ring side of the oil seal body. The ring mounting groove is adapted to the inner ring, and after installation, the inner ring is fitted into the inner side of the ring mounting groove.

[0008] Preferably, the inner ring sleeve has a locking protrusion fixedly provided on both the front and rear sides, and the inner sides of the sleeve mounting groove are provided with locking ring grooves. After installation, the locking protrusion and the locking ring groove are fitted together.

[0009] Preferably, the inner ring sleeve has a mounting hole in the middle, and multiple sealing rings are provided, with several sealing rings being evenly and uniformly fixed at the front opening side of the mounting hole at equal intervals.

[0010] Preferably, the inner support ring is ring-shaped and is fixedly fitted and installed on the inner side of the oil seal body.

[0011] Preferably, the side annular groove is V-shaped and is not through-hole formed in the middle of the side of the oil seal body.

[0012] Preferably, the mounting end seat is made of rigid material, and the push-protrusion is fixed to the middle of the front side of the mounting end seat. After installation, the push-protrusion is fitted into the inner side of the side annular groove at the rear.

[0013] Compared with the prior art, the present invention, by adopting the above technical solution, has the following technical effects:

[0014] This oil seal adopts a split structure, dividing the oil seal into two parts: the oil seal body and the inner ring sleeve. The inner ring sleeve is fitted into the inner ring side of the oil seal body through a ring sleeve mounting groove. The inner ring sleeve is available in various sizes and has a sealing ring in the middle. It not only has good structural installation and sealing performance, but also allows the oil seal body to be adapted to different sizes of shafts by replacing the inner ring sleeve, which greatly improves the installation adaptability and usage flexibility of the oil seal and facilitates its installation and use. In addition, an installation end seat is fitted into the rear of the oil seal body, and an inner support ring is set inside the oil seal body. The lateral installation support of the installation end seat and the vertical support of the inner support ring can effectively improve the working installation stability of the oil seal. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1 This is a schematic diagram of the overall installation front structure of this utility model;

[0017] Figure 2 This is a schematic diagram of the overall installation rear structure of this utility model;

[0018] Figure 3 This is a schematic diagram of the overall installation and disassembly structure of this utility model;

[0019] Figure 4 This is a schematic diagram of the overall central cross-sectional structure of this utility model;

[0020] Figure 5 This is a three-dimensional structural diagram of the oil seal body of this utility model;

[0021] Figure 6 This is a schematic diagram of the three-dimensional structure of the inner ring of this utility model.

[0022] Explanation of reference numerals in the attached drawings: 1. Oil seal body; 2. Inner ring sleeve; 3. Mounting end seat; 4. Ring sleeve mounting groove; 5. Fitting convex ring; 6. Fitting ring groove; 7. Sealing ring; 8. Side ring groove; 9. Pushing convex seat; 10. Inner support ring. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0024] It should be noted that the structures, proportions, sizes, etc., shown in the accompanying drawings of this specification are only for the purpose of assisting those skilled in the art in understanding and reading the content disclosed in the specification, and are not intended to limit the conditions under which this application can be implemented. Therefore, they have no substantial technical significance. Any modifications to the structure, changes in the proportions, or adjustments to the size should still fall within the scope of the technical content disclosed in this application, provided that they do not affect the effects and purposes that this application can produce.

[0025] Example

[0026] Please see Figure 1-6 This utility model provides a technical solution: an easy-to-install oil seal, comprising an oil seal body 1, an inner ring sleeve 2, and a mounting end seat 3. Both the oil seal body 1 and the inner ring sleeve 2 are made of rubber, and the hardness of the inner ring sleeve 2 is lower than that of the oil seal body 1. (See attached...) Figure 5 As shown, to facilitate the connection and installation of the inner ring sleeve 2, a ring sleeve mounting groove 4 is provided on the inner ring side of the oil seal body 1. The ring sleeve mounting groove 4 is ring-shaped and is provided on the inner ring side of the oil seal body 1. The ring sleeve mounting groove 4 is adapted to the inner ring sleeve 2. After installation, the inner ring sleeve 2 is fitted into the inner side of the ring sleeve mounting groove 4. The inner ring sleeve 2 is fitted into the inner ring side of the oil seal body 1 through the ring sleeve mounting groove 4. With a split structure, the oil seal is divided into two parts: the oil seal body 1 and the inner ring sleeve 2. The inner ring sleeve 2 is fitted into the inner ring side of the oil seal body 1 through the ring sleeve mounting groove 4. The inner ring sleeve 2 has various sizes and a sealing ring 7 is provided in the middle. It not only has good structural installation sealing performance, but also allows the oil seal body 1 to be adapted and installed with shafts of different sizes by replacing the inner ring sleeve 2 during use.

[0027] To improve the connection stability between the inner ring sleeve 2 and the oil seal body 1, as shown in the attached... Figure 5 As shown, fitting protruding rings 5 ​​are fixedly provided on both the front and rear sides of the inner ring sleeve 2, and fitting ring grooves 6 are provided on both sides of the inner side of the ring sleeve mounting groove 4. After installation, the fitting protruding rings 5 ​​and the fitting ring grooves 6 are fitted together, which increases the stability of the inner ring sleeve 2 installation and improves the sealing performance of the inner ring sleeve 2 connection side.

[0028] To further improve the sealing performance between the inner ring sleeve 2 and the shaft, a sealing ring 7 is provided on the inner ring mounting side of the inner ring sleeve 2, as shown in the attached figure. Figure 6 As shown, the inner ring sleeve 2 has a mounting hole in the middle. There are two sealing rings 7. The two sealing rings 7 are evenly fixed and installed at the front opening side of the mounting hole at equal intervals. The sealing rings 7 contact and fit with the outer peripheral side of the shaft body, which can effectively prevent oil overflow.

[0029] To improve the structural stability of the oil seal body 1, as shown in the attached... Figure 4 As shown, an inner support ring 10 is provided inside the oil seal body 1. The inner support ring 10 is a ring-shaped steel ring, which is fixedly fitted and installed inside the oil seal body 1. This can improve the vertical structural support strength of the oil seal body 1. Figure 3 As shown, the front and rear sides of the oil seal body 1 are provided with side annular grooves 8. The side annular grooves 8 are V-shaped and are not through-holes in the middle of the side of the oil seal body 1. The mounting end seat 3 is made of hard material, specifically ceramic. In order to fit and install with the oil seal body 1, a push-protrusion 9 is provided on the side of the mounting end seat 3. The push-protrusion 9 is fixed to the middle of the front side of the mounting end seat 3. After installation, the push-protrusion 9 fits and is installed inside the side annular groove 8 at the rear. The mounting end seat 3 is installed at the rear of the oil seal body 1 by fitting and supporting the push-protrusion 9. The lateral installation support of the mounting end seat 3, together with the vertical support of the inner support ring 10, can effectively improve the working installation stability of the oil seal.

[0030] The working principle or structural principle is as follows: During installation, select the appropriate inner ring sleeve 2 according to the size specifications of the shaft at the installation location. Then, keep the inner ring sleeve 2 aligned with the oil seal body 1. Next, install the inner ring sleeve 2 into the inner ring mounting groove 4 on the inner ring side of the oil seal body 1 by fitting. Then, align and fit the mounting end seat 3 on the rear mounting support side of the oil seal body 1. Then, push the oil seal set onto the upper part of the shaft. After installation, ensure that the front of the oil seal body 1 faces the oil sealing side. Finally, the oil seal is completed by the contact and pushing between the mounting end seat 3 and the fastener. The installation limit of the main body 1 completes the installation operation of the oil seal. During operation, the oil applies pressure to the oil seal main body 1 and the inner ring sleeve 2 from the front. The side annular groove 8 at the front is pushed by the oil and expands to both sides, realizing the contact and tight sealing of the inner ring sleeve 2. At the same time, the sealing ring 7 can make the inner ring sleeve 2 and the bearing tightly sealed to prevent oil leakage. At the rear of the oil seal main body 1, the oil seal main body 1 is pushed by the oil and fits tightly with the mounting end seat 3. The pushing of the pushing protrusion 9 can make the oil seal main body 1 expand on both sides, increasing the structural sealing of the inner and outer sides.

[0031] In summary, this oil seal adopts a split structure, dividing the oil seal into two parts: the oil seal body 1 and the inner ring sleeve 2. The inner ring sleeve 2 is fitted into the inner ring side of the oil seal body 1 through the ring sleeve mounting groove 4. The inner ring sleeve 2 is available in various sizes and has a sealing ring 7 in the middle. It not only has good structural installation and sealing performance, but also allows the oil seal body 1 to be adapted to different sizes of shafts by replacing the inner ring sleeve 2 during use, which greatly improves the installation adaptability and usage flexibility of the oil seal and facilitates the installation and use of the oil seal. In addition, an installation end seat 3 is fitted into the rear of the oil seal body 1, and an inner support ring 10 is set inside the oil seal body 1. The lateral installation support of the installation end seat 3 and the vertical support of the inner support ring 10 can effectively improve the working installation stability of the oil seal.

[0032] Those skilled in the art will understand that the features described in the various embodiments and / or claims of this utility model can be combined or combined in various ways, even if such combinations or combinations are not explicitly described in this utility model. In particular, the features described in the various embodiments and / or claims of this utility model can be combined or combined in various ways without departing from the spirit and teachings of this utility model. All such combinations and / or combinations fall within the scope of this utility model.

Claims

1. An easy-to-install oil seal, comprising an oil seal body (1), an inner ring sleeve (2), and a mounting end seat (3), characterized in that: The inner ring side of the oil seal body (1) is provided with a ring mounting groove (4), and the inner ring sleeve (2) is fitted and installed on the inner ring side of the oil seal body (1) through the ring mounting groove (4). The inner ring mounting side of the inner ring sleeve (2) is provided with a sealing ring (7). The oil seal body (1) is provided with an inner support ring (10) inside. The front and rear sides of the oil seal body (1) are provided with side ring grooves (8). The side of the mounting end seat (3) is provided with a push-abutment (9). The mounting end seat (3) is fitted and supported on the rear of the oil seal body (1) by the push-abutment (9).

2. The oil seal for easy installation according to claim 1, characterized in that: The ring mounting groove (4) is formed in a ring shape and is located on the inner ring side of the oil seal body (1). The ring mounting groove (4) is adapted to the inner ring (2). After installation, the inner ring (2) is fitted into the inner side of the ring mounting groove (4).

3. The oil seal for easy installation according to claim 2, characterized in that: The inner ring sleeve (2) is fixedly provided with fitting protruding rings (5) on both the front and rear sides, and the inner sides of the ring sleeve mounting groove (4) are provided with fitting ring grooves (6). After installation, the fitting protruding rings (5) and the fitting ring grooves (6) are fitted together.

4. The oil seal for easy installation according to claim 3, characterized in that: The inner ring sleeve (2) has an installation hole in the middle. Multiple sealing rings (7) are provided, and several sealing rings (7) are evenly fixed and installed at equal intervals on the front opening side of the installation hole.

5. The oil seal for easy installation according to claim 1, characterized in that: The inner support ring (10) is ring-shaped and is fixedly fitted and installed on the inner side of the oil seal body (1).

6. The oil seal for easy installation according to claim 5, characterized in that: The side annular groove (8) is V-shaped and is not through-hole opened in the middle of the side of the oil seal body (1).

7. The oil seal for easy installation according to claim 6, characterized in that: The mounting end seat (3) is made of rigid material. The push protrusion (9) is fixed to the middle of the front side of the mounting end seat (3). After installation, the push protrusion (9) is fitted into the inner side of the side annular groove (8) at the rear.

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