A floating oil seal mounting structure

Abstract

The utility model relates to floating oil seal technical field, and disclose a kind of floating oil seal mounting structure, including floating seal seat, rubber ring and floating seal ring, there is rubber ring closely and firmly between floating seal seat and floating seal ring, the inside of floating seal seat is equipped with inner chamber taper face, and the outer wall of floating seal ring is equipped with back taper face;Floating seal seat includes head base, arc spring, tail base and universal level bubble, and arc spring is integrally connected between head base and tail base, and universal level bubble is embedded on the end face of tail base.The head base of the utility model floating seal seat and tail base are integrally connected by the arc spring with gap, so that there is elastic deformation space when floating oil seal assembly, can adapt to assembly tiny deviation, when equipment operation generates vibration and displacement, arc spring elastically deforms, let floating seal seat adjust position, keep floating seal ring, rubber ring and floating seal seat closely cooperate, effectively compensate sealing surface gap, ensure that sealing performance is stable.

Description

Technical Field

[0001] This utility model relates to the field of floating oil seal technology, specifically a floating oil seal installation structure. Background Technology

[0002] Floating oil seals are a common name for floating seals, belonging to the category of dynamic seals and mechanical seals. They possess superior sealing performance in harsh working environments with high levels of coal dust, silt, water vapor, and other pollutants. These compact mechanical seals are primarily used in low-speed, heavy-load applications. They offer advantages such as wear resistance, automatic compensation after end-face wear, reliable operation, and simple structure, making them widely used in coal mining machinery.

[0003] According to a search, Chinese patent document, publication number CN214367745U, discloses a high-precision floating oil seal ring installation structure. By setting up a slot, spring, elastic washer, and floating oil seal in cooperation, when the floating oil seal needs to be installed, it is snapped into the slot. The elastic washer and spring work together to allow the floating oil seal to slide along the end of the elastic washer during snapping. The spring's elasticity compresses the floating oil seal for fixation. When different types of floating oil seals need to be installed, the elastic washer and spring generate elastic force to adjust the width, thus accommodating different types of floating oil seals for fixation. Combined with the compression unit, this improves the installation efficiency of the floating oil seal.

[0004] However, the above-mentioned floating oil seal installation structure cannot effectively compensate for the vibration and displacement generated during equipment operation, causing gaps to appear on the sealing surface of the floating oil seal after wear, which leads to oil seal leakage. Utility Model Content

[0005] (a) Technical problems to be solved

[0006] To address the shortcomings of existing technologies, this utility model provides a floating oil seal installation structure that can automatically compensate for vibrations and displacements generated during equipment operation, ensuring that the sealing surface of the floating oil seal remains in contact, thereby improving sealing performance and solving the aforementioned technical problems.

[0007] (II) Technical Solution

[0008] To achieve the above objectives, this utility model provides the following technical solution: a floating oil seal installation structure, including a floating seal seat, a rubber ring, and a floating seal ring, wherein the rubber ring is tightly fitted between the floating seal seat and the floating seal ring, an inner conical surface is provided on the inner side of the floating seal seat, and a back conical surface is provided on the outer wall of the floating seal ring;

[0009] The floating seal includes a head base, an arc-shaped spring, a tail base, and a universal spirit level. The arc-shaped spring is integrally connected between the head base and the tail base, and the universal spirit level is embedded on the end face of the tail base.

[0010] Preferably, the rubber ring is tightly fitted between the inner conical surface and the back conical surface, and the inner conical surface is opened on the inner side of the head base.

[0011] Preferably, the angle between the inner conical surface and the horizontal plane is 15-20 degrees, and the angle between the back conical surface and the horizontal plane is also 15-20 degrees.

[0012] Preferably, there is a gap between the arc-shaped spring and the head base, and there is also a gap between the arc-shaped spring and the tail base.

[0013] Preferably, the outer surface of the floating seal ring is provided with a front arc-shaped surface and a rear arc-shaped surface, and the front arc-shaped surface and the rear arc-shaped surface are connected by a back conical surface.

[0014] Preferably, four slots are provided on the end face of the tail base around its axial direction, and a universal spirit level is embedded in the slots.

[0015] Compared with the prior art, this utility model provides a floating oil seal installation structure, which has the following characteristics:

[0016] Beneficial effects:

[0017] 1. The floating oil seal installation structure of this utility model has the inner conical surface of the floating seal seat and the back conical surface of the floating seal ring tightly fitted with the rubber ring, and the included angle is 15-20 degrees. At the same time, the front and rear arc surfaces of the outer surface of the floating seal ring are connected to the back conical surface. During assembly, the rubber ring and the floating seal ring can be installed more smoothly with the help of the guiding effect of the conical and arc surfaces, which reduces the assembly difficulty and improves the assembly efficiency.

[0018] 2. The head base and tail base of the floating seal seat of this utility model are integrally connected by an arc-shaped spring with a gap, so that the floating oil seal has elastic deformation space during assembly, which can adapt to minor assembly deviations. When the equipment vibrates and displaces during operation, the arc-shaped spring deforms elastically, allowing the floating seal seat to adjust its position, keeping the floating seal ring, rubber ring and floating seal seat in tight fit, effectively compensating for the gaps in the sealing surface and ensuring stable sealing performance. Attached Figure Description

[0019] Figure 1 This is a three-dimensional schematic diagram of the structure of this utility model;

[0020] Figure 2 This is a schematic diagram of the explosive decomposition of the structure of this utility model;

[0021] Figure 3This is a cross-sectional schematic diagram of the structure of this utility model.

[0022] Among them: 1. Float seal seat; 11. Head base; 12. Arc-shaped spring; 13. Tail base; 14. Universal spirit level; 2. Rubber ring; 3. Float seal ring; 4. Inner cavity conical surface; 5. Back conical surface; 6. Front arc-shaped surface; 7. Rear arc-shaped surface. 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] Please see Figures 1-3 A floating oil seal installation structure includes a floating seal seat 1, a rubber ring 2 and a floating seal ring 3. The rubber ring 2 is tightly fitted between the floating seal seat 1 and the floating seal ring 3. An inner cavity cone surface 4 is provided on the inner side of the floating seal seat 1, and a back cone surface 5 is provided on the outer wall of the floating seal ring 3.

[0025] The float seat 1 includes a head base 11, an arc-shaped spring 12, a tail base 13, and a universal level 14. The arc-shaped spring 12 is integrally connected between the head base 11 and the tail base 13, and the universal level 14 is embedded on the end face of the tail base 13.

[0026] Specifically, the rubber ring 2 is tightly fitted between the inner conical surface 4 and the back conical surface 5, with the inner conical surface 4 located on the inner side of the head base 11.

[0027] Specifically, the angle between the inner conical surface 4 and the horizontal plane is 15-20 degrees, and the angle between the back conical surface 5 and the horizontal plane is also 15-20 degrees.

[0028] The advantage is that the inner conical surface 4 of the floating seal seat 1 and the back conical surface 5 of the floating seal ring 3 are closely fitted with the rubber ring 2, and the included angle is 15-20 degrees. With such a conical surface design, the rubber ring 2 can be installed more smoothly between the two with the help of the conical surface during assembly, reducing the assembly difficulty and improving the assembly efficiency.

[0029] Specifically, there is a gap between the arc-shaped spring 12 and the head base 11, and there is also a gap between the arc-shaped spring 12 and the tail base 13.

[0030] The advantage is that, from Figure 1 , Figure 2 and Figure 3As can be seen, the head base 11 and the tail base 13 of the floating seal seat 1 are integrally connected by an arc-shaped spring piece 12, and there is a gap between the arc-shaped spring piece 12 and both of them. This allows the floating oil seal to have a certain elastic deformation space during assembly, which can better adapt to the small deviations and adjustment requirements during the assembly process. Since some equipment will vibrate and displace during operation, this may cause gaps in the sealing surface of the floating oil seal, resulting in leakage. The elasticity of the arc-shaped spring piece 12 can buffer these vibrations and displacements. When the equipment vibrates or displaces, the arc-shaped spring piece 12 can undergo elastic deformation, allowing the floating seal seat 1 to adjust its position accordingly, always maintaining a tight fit between the floating seal ring 3, the rubber ring 2 and the floating seal seat 1, effectively compensating for the gaps in the sealing surface caused by vibration and displacement, and ensuring stable sealing performance.

[0031] Specifically, the outer surface of the floating seal ring 3 is provided with a front arc-shaped surface 6 and a rear arc-shaped surface 7, and the front arc-shaped surface 6 and the rear arc-shaped surface 7 are connected by a back cone surface 5.

[0032] The advantage is that, structurally, the front arc-shaped surface 6 and the rear arc-shaped surface 7 are located on the outer surface of the floating seal ring 3 and connected to the back conical surface 5. During assembly, this arc-shaped design can reduce the assembly difficulty, so that when the floating seal ring 3 is in contact with the floating seal seat 1 and the rubber ring 2, it can be installed more smoothly with the help of the arc-shaped surface, thus improving the assembly efficiency.

[0033] Specifically, four slots are provided on the end face of the tail base 13 around its axial direction, and a universal spirit level 14 is embedded in the slots.

[0034] The advantage is that if the floating seal seat 1 is not in a horizontal state when installing the floating oil seal, the floating seal ring 3, rubber ring 2 and floating seal seat 1 will be subjected to uneven force during equipment operation. By setting a universal level bubble 14 embedded in the end face of the tail base 13, the position of the bubble inside can be observed, and the installer can quickly determine whether the floating seal seat 1 is horizontal.

[0035] During use, the entire floating oil seal is mounted on the shaft of the equipment. The position of the bubble inside the universal level 14 is observed to determine whether the floating seal seat 1 is horizontal. If it is not horizontal, it needs to be adjusted to be horizontal to ensure that the floating seal ring 3, rubber ring 2 and floating seal seat 1 are subjected to uniform force during installation. During installation, the inner conical surface 4 on the inner side of the head base 11 of the floating seal seat 1 and the back conical surface 5 on the outer wall of the floating seal ring 3 are used as guides to tightly fit the rubber ring 2 between the inner conical surface 4 and the back conical surface 5. Because the arc-shaped spring 12 is set, its elastic deformation space can adapt to the small deviations and adjustment needs during the assembly process. When the equipment vibrates and displaces during operation, the arc-shaped spring 12 undergoes elastic deformation to maintain a tight fit between the floating seal ring 3, rubber ring 2 and floating seal seat 1, ensuring stable sealing performance.

[0036] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A floating oil seal mounting structure, comprising a floating seal seat (1), a rubber ring (2), and a floating seal ring (3), wherein the rubber ring (2) is tightly fitted between the floating seal seat (1) and the floating seal ring (3), characterized in that: The inner side of the floating seal seat (1) is provided with an inner cavity cone surface (4), and the outer wall of the floating seal ring (3) is provided with a back cone surface (5); The floating seal seat (1) includes a head base (11), an arc-shaped spring (12), a tail base (13), and a universal spirit level (14). The arc-shaped spring (12) is integrally connected between the head base (11) and the tail base (13), and the universal spirit level (14) is embedded on the end face of the tail base (13).

2. The floating oil seal installation structure according to claim 1, characterized in that: The rubber ring (2) is tightly fitted between the inner conical surface (4) and the back conical surface (5), and the inner conical surface (4) is opened on the inner side of the head base (11).

3. The floating oil seal installation structure according to claim 1, characterized in that: The angle between the inner conical surface (4) and the horizontal plane is 15-20 degrees, and the angle between the back conical surface (5) and the horizontal plane is also 15-20 degrees.

4. The floating oil seal installation structure according to claim 1, characterized in that: There is a gap between the arc-shaped spring (12) and the head base (11), and there is also a gap between the arc-shaped spring (12) and the tail base (13).

5. The floating oil seal installation structure according to claim 1, characterized in that: The outer surface of the floating seal ring (3) is provided with a front arc-shaped surface (6) and a rear arc-shaped surface (7), and the front arc-shaped surface (6) and the rear arc-shaped surface (7) are connected by a back cone surface (5).

6. The floating oil seal installation structure according to claim 1, characterized in that: Four slots are provided on the end face of the tail base (13) around its axial direction, and a universal spirit bubble (14) is embedded in the slots.

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