Engine seal

Abstract

The utility model relates to the field of engine seal, especially an engine seal ring. Including seal ring, seal ring adopts fluorine rubber material, and the seal ring is connected with the elastic buffer layer, and the elastic buffer layer is connected with the support mechanism, and the support mechanism includes the support ring, and the support ring is connected with the connecting ring, and the connecting ring is connected with the support rod, and the support rod is provided with the sliding slot, and the sliding slot side wall is connected with the telescopic link with sliding, and the telescopic link telescopic end is connected with the elastic buffer layer, and the telescopic link is connected with the spring, and the spring other end is connected with the sliding slot side wall, and the telescopic link rotatory connection has the gyro wheel, and the support rod is provided with the rolling groove, and the gyro wheel is connected with the rolling groove rolling. Adopting the utility model can ensure that the pressure is evenly transmitted, avoids the overall deformation of the seal ring, effectively resists the damage of high pressure to the sealing structure, prevents oil or gas leakage.

Description

Technical Field

[0001] This utility model relates to the field of engine sealing, and in particular to an engine sealing ring. Background Technology

[0002] As the core of various power equipment, the reliability of the sealing of the engine's internal oil circuit, air passage, and coolant passage directly affects the equipment's operating efficiency and service life.

[0003] Traditional sealing rings are easily squeezed and deformed under high pressure, leading to seal failure and causing oil or gas leakage. Utility Model Content

[0004] The present invention aims to provide an engine sealing ring to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] An engine sealing ring includes a sealing ring made of fluororubber, an elastic buffer layer connected to the sealing ring, a support mechanism connected to the elastic buffer layer, a support ring including a support ring, a connecting ring connected to the support ring, a support rod connected to the connecting ring, a groove on the support rod, a telescopic rod slidably connected to the side wall of the groove, a telescopic end of the telescopic rod connected to the elastic buffer layer, a spring connected to the telescopic rod, the other end of the spring connected to the side wall of the groove, a roller rotatably connected to the telescopic rod, and a rolling groove on the support rod, with the roller rollingly connected to the rolling groove.

[0007] Preferably, the elastic buffer layer is made of silicone, and the elastic buffer layer has honeycomb-shaped pores inside.

[0008] Preferably, the outer peripheral wall of the roller is fitted with a wear-resistant rubber sleeve, which is in rolling contact with the groove.

[0009] Preferably, both the support ring and the connecting ring are made of stainless steel, and reinforcing ribs are welded between the support ring and the connecting ring.

[0010] Preferably, the outer walls of both the support rod and the telescopic rod are coated with an anti-corrosion coating, which is made of polytetrafluoroethylene.

[0011] Preferably, the sealing ring has anti-slip texture, which is serrated.

[0012] The beneficial effects of this technical solution compared to existing technologies are as follows:

[0013] (1) This solution uses fluororubber for the sealing ring. Fluororubber has excellent high temperature resistance, oil resistance and chemical corrosion resistance. It can maintain good elasticity and structural stability under the complex working conditions of the engine, reduce leakage problems caused by material deterioration, and improve the basic sealing capacity and service life of the sealing ring. By setting up a support mechanism, the stainless steel support ring and connecting ring provide overall structural strength, and the reinforcing rib enhances the connection stability of the two. The support rod, telescopic rod and spring work together. Under high pressure, the spring buffers the pressure by telescopic movement, and the telescopic rod slides along the groove and drives the roller to roll in the groove, ensuring uniform pressure transmission, avoiding overall deformation of the sealing ring, effectively resisting the damage of high pressure to the sealing structure, and preventing oil or gas leakage.

[0014] (2) By setting rollers, wear-resistant rubber sleeves and grooves, the rolling cooperation between the rollers and grooves transforms sliding friction into rolling friction, reducing frictional loss between the telescopic rod and the support rod; the wear-resistant rubber sleeve further reduces the wear rate and enhances the smoothness of movement, ensuring that the support mechanism can still respond flexibly to pressure changes and maintain effective support for the sealing ring during long-term use.

[0015] (3) By setting an elastic buffer layer and honeycomb pores, the elastic buffer layer of silicone material can absorb vibration and pressure impact through its own deformation. The honeycomb pores inside further enhance the buffering effect, disperse the local pressure on the sealing ring, prevent the sealing lip from deforming due to excessive compression, and adapt to the slight deformation of the interface to maintain the tight fit of the sealing surface.

[0016] (4) By setting a polytetrafluoroethylene anti-corrosion coating, it has excellent corrosion resistance and non-stick properties, which can isolate the corrosive medium from the metal surface, prevent the support rod and telescopic rod from being damaged by corrosion, and ensure the long-term stable operation of the support mechanism.

[0017] (5) By setting serrated anti-slip texture, the friction between the hand or tool and the sealing ring during assembly is increased, which facilitates accurate positioning and installation, reduces the risk of sealing failure caused by improper installation, and improves assembly efficiency and reliability. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the exploded structure provided by this utility model;

[0019] Figure 2 for Figure 1 Enlarged view of point A;

[0020] Figure 3 A front sectional view of the support rod provided by this utility model;

[0021] Reference numerals: 1. Sealing ring; 2. Elastic buffer layer; 3. Support ring; 4. Connecting ring; 5. Support rod; 6. Telescopic rod; 7. Slide groove; 8. Spring; 9. Roller; 10. Groove. Detailed Implementation

[0022] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments:

[0023] like Figure 1-3 The engine sealing ring shown includes a sealing ring 1, which is an annular structure made of fluororubber, possessing high temperature resistance, oil resistance, and chemical corrosion resistance. It forms an initial sealing surface with the engine interface through its own elastic deformation. An elastic buffer layer 2 is connected to the inner wall of the sealing ring 1. A support mechanism is connected inside the elastic buffer layer 2, including a support ring 3. The support ring 3 is connected to several connecting rings 4, and each connecting ring 4 is connected to four support rods 5. Each support rod 5 has a groove 7, and a telescopic rod 6 is slidably connected to the side wall of each groove 7. The telescopic end of each telescopic rod 6 is connected to the inner wall of the elastic buffer layer 2. A spring 8 is connected to the bottom of each telescopic rod 6, and the other end of each spring 8 is connected to the side wall of the groove 7. Rollers 9 are rotatably connected to both ends of each telescopic rod 6. Rolling grooves 10 are formed on both sides of the inner wall of each support rod 5, and each roller 9 rolls with its corresponding rolling groove 10 to ensure smooth sliding of the telescopic rod 6. When the pressure is too high, the telescopic rod 6 slides along the groove 7 and compresses the spring 8. The elastic force of the spring 8 pushes the telescopic rod 6 back, and applies reverse pressure to the sealing ring 1 through the elastic buffer layer 2 to compensate for the pressure loss of the sealing surface and prevent the sealing ring 1 from deforming and failing.

[0024] like Figure 1 As shown, the elastic buffer layer 2 is made of silicone and has honeycomb-shaped pores inside. The pores are evenly distributed in a hexagonal pattern and can absorb vibration and pressure impacts through the compression and expansion of the pores, while also adapting to slight deformation of the interface. When the engine vibrates or the pressure fluctuates, the honeycomb pores of the elastic buffer layer 2 compress and deform, absorbing part of the impact force, while transmitting the remaining pressure to the support mechanism.

[0025] like Figure 3 As shown, the outer peripheral wall of the roller 9 is fitted with a wear-resistant rubber sleeve, which rolls in conjunction with the groove 10. This reduces metal-to-metal friction between the roller 9 and the groove 10 and also buffers the rolling impact through the elasticity of the rubber, thus extending the service life of the component.

[0026] like Figure 1As shown, both the support ring 3 and the connecting ring 4 are made of stainless steel, and reinforcing ribs are welded between them to enhance the overall structural strength and form a stable triangular structure, preventing bending or breakage of the connection under high pressure. The outer walls of the support rod 5 and the telescopic rod 6 are coated with an anti-corrosion coating made of polytetrafluoroethylene (PTFE), which isolates them from corrosion by fuel, coolant, and other media inside the engine, ensuring long-term stable operation of the support mechanism. The sealing ring 1 has anti-slip textures, which are serrated to enhance friction during assembly.

[0027] The specific implementation process is as follows:

[0028] During use, the fluororubber sealing ring 1 conforms to the interface surface through its own elastic deformation, forming an initial sealing surface. The anti-slip texture also prevents positional displacement due to slippage during assembly. As the sealing ring 1 conforms to the interface, the inner elastic buffer layer 2 is slightly compressed first, and the honeycomb pores begin to deform. The stainless steel frame composed of the support ring 3 and the connecting ring 4 maintains the overall structural stability, and the reinforcing ribs ensure the connection strength between the support ring 3 and the connecting ring 4, preventing deformation under stress during installation.

[0029] After the engine starts, the pressure in the oil or air passages gradually increases, and this pressure is transmitted to the sealing ring 1 through the interface. The fluororubber sealing ring 1 resists the initial pressure through elastic deformation, while simultaneously transmitting some of the pressure to the inner elastic buffer layer 2. Under pressure, the elastic buffer layer 2's internal hexagonal honeycomb pores compress and deform, absorbing some of the pressure impact and reducing the force directly acting on the support mechanism. For minor vibrations during engine startup, the expansion and contraction of the pores can quickly buffer the vibration, preventing it from impacting the sealing surface.

[0030] When the pressure exceeds the initial buffer range, the elastic buffer layer 2 transmits the remaining pressure to the telescopic rod 6. The telescopic rod 6 slides along the groove 7 of the support rod 5, compressing the bottom spring 8, while the rollers 9 at both ends roll along the groove 10, ensuring smooth sliding without jamming. The elastic force of the spring 8 increases with the increase of compression, pushing the telescopic rod 6 back to apply reverse pressure to the sealing ring 1 through the elastic buffer layer 2, compensating for the deformation of the sealing surface caused by high pressure, and preventing the sealing ring 1 from being squeezed, deformed, and failing.

[0031] The above descriptions are merely embodiments of this utility model. Commonly known technical solutions and / or characteristics are not described in detail here. It should be noted that those skilled in the art can make various modifications and improvements without departing from the technical solution of this utility model. These modifications and improvements should also be considered within the scope of protection of this utility model, and will not affect the effectiveness of the implementation of this utility model or the practicality of the patent. The scope of protection claimed in this application should be determined by the content of its claims, and the specific embodiments described in the specification can be used to interpret the content of the claims.

Claims

1. An engine sealing ring, characterized in that: The system includes a sealing ring (1) made of fluororubber, an elastic buffer layer (2) connected to the sealing ring (1), a support mechanism connected to the elastic buffer layer (2), a support ring (3) connected to the support ring (3), a connecting ring (4) connected to the connecting ring (4), a support rod (5) connected to the support rod (5), a groove (7) provided on the support rod (5), a telescopic rod (6) slidably connected to the side wall of the groove (7), the telescopic end of the telescopic rod (6) connected to the elastic buffer layer (2), a spring (8) connected to the telescopic rod (6), the other end of the spring (8) connected to the side wall of the groove (7), a roller (9) rotatably connected to the telescopic rod (6), a rolling groove (10) provided on the support rod (5), and the roller (9) rollingly connected to the rolling groove (10).

2. The engine sealing ring as described in claim 1, characterized in that: The elastic buffer layer (2) is made of silicone, and the elastic buffer layer (2) has honeycomb-shaped pores inside.

3. The engine sealing ring as described in claim 1, characterized in that: The outer peripheral wall of the roller (9) is fitted with a wear-resistant rubber sleeve, which is in rolling contact with the roller groove (10).

4. An engine sealing ring as described in claim 1, characterized in that: Both the support ring (3) and the connecting ring (4) are made of stainless steel, and reinforcing ribs are welded between the support ring (3) and the connecting ring (4).

5. An engine sealing ring as described in claim 1, characterized in that: The outer walls of the support rod (5) and the telescopic rod (6) are coated with an anti-corrosion coating, which is made of polytetrafluoroethylene.

6. An engine sealing ring as described in claim 1, characterized in that: The sealing ring (1) is provided with anti-slip texture, which is serrated.

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