High-temperature-resistant rotary shaft sealing ring

Abstract

The utility model relates to the technical field of sealing ring, and disclose a kind of high-temperature-resistant rotating shaft sealing ring, including rotating shaft main body, still include: sealing ring main body, installation shell and support plate, the sealing ring main body includes cavity, annular pipe, exhaust component, connecting pipe, air inlet pipe, exhaust port, heat-conducting resin and air cooler;The utility model runs through connecting pipe, annular pipe and air inlet pipe cold air delivery to the inside of cavity by air cooler in the rotating process of rotating shaft main body, so that the air pressure inside cavity increases, makes cavity expansion tightly in the inside of support plate, and radial force is generated to rotating shaft main body, avoid the gap to appear in contact position, ensure sealing, and the air pressure inside cavity reaches certain value, exhaust component opens, and the gas inside cavity is discharged through exhaust component, so that cold air flows through cavity in cavity and cools sealing ring main body, avoid that sealing ring main body is damaged due to temperature being too high.

Description

Technical Field

[0001] This utility model relates to the field of sealing ring technology, and more specifically to a high-temperature resistant rotary shaft sealing ring. Background Technology

[0002] A rotating shaft is a rigid rod in a mechanical component that transmits torque or supports rotation. During use, rotating shafts are often lubricated with lubricating oil to reduce friction and wear. Therefore, to prevent lubricating oil leakage, a sealing ring is required for the rotating shaft. The rotating shaft sealing ring is a key component for dynamic sealing of the end of a mechanical rotating shaft. Its core function is to apply radial pressure to the shaft surface through the sealing lip to prevent fluid leakage and the intrusion of external contaminants.

[0003] Existing technology has shortcomings: the high-speed rotation of the rotating shaft generates a lot of heat, and in some high-temperature environments, heat continuously accumulates on the sealing ring and cannot be dissipated in time, which can easily cause damage to the sealing ring and affect the sealing performance. Utility Model Content

[0004] In order to overcome the above-mentioned defects of the prior art, the present invention provides a high-temperature resistant rotary shaft sealing ring to solve the problems existing in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a high-temperature resistant rotary shaft sealing ring, comprising a rotary shaft body, and further comprising: a sealing ring body, a mounting shell, and a support plate. The side of the rotary shaft body is movably sleeved with the inner wall of the side of the support plate, the side of the sealing ring body is fixedly connected with the inner wall of the side of the mounting shell, the side of the mounting shell is fixed with the side of the support plate by bolts, the inner wall of the side of the sealing ring body is movably sleeved with the side of the rotary shaft body, and the side of the sealing ring body is movably connected with the side of the support plate. The sealing ring body includes a cavity, an annular tube, an exhaust assembly, a connecting pipe, an air inlet pipe, an exhaust port, thermally conductive resin, and a cooler. The cavity is formed inside the sealing ring body. The side of the annular tube is fixedly connected with the side of the mounting shell. The top end of the annular tube is connected to the output end of the cooler through a connecting pipe. The bottom end of the annular tube is fixedly connected to the top end of the cavity through an air inlet pipe. A connecting block is fixedly connected to the side of the mounting shell. The side of the connecting block is fixed with the side of the support plate by bolts. An installation groove is formed on the side of the connecting block corresponding to the position of the exhaust assembly.

[0006] Furthermore, the exhaust assembly is fixedly connected to the side of the mounting groove, and the intake pipe and exhaust assembly are evenly distributed on the side of the sealing ring body, with the intake pipe and exhaust assembly being staggered.

[0007] Furthermore, the thermally conductive resin is evenly distributed inside the sealing ring body, and the top end of the thermally conductive resin penetrates the cavity, while the bottom end of the thermally conductive resin is movably connected to the top end of the rotating shaft body.

[0008] Furthermore, the exhaust assembly includes a mounting cylinder, the side of which is fixedly connected to the side of the mounting groove, a pressure spring is fixedly connected to the inner wall of the top end of the mounting cylinder, a sealing plug is fixedly connected to the bottom end of the pressure spring, an air inlet is provided at the bottom end of the mounting cylinder corresponding to the exhaust port, the side of the air inlet is movably connected to the side of the sealing plug, and an exhaust hole is provided at the top end of the mounting cylinder.

[0009] Furthermore, the side of the air inlet is provided with an inclined surface, the sealing plug has a conical structure, and the side of the sealing plug engages with the side of the sealing plug.

[0010] Furthermore, a buffer spring is fixedly connected to the inner wall of the top end of the mounting cylinder, a pressure switch is fixedly connected to the bottom end of the buffer spring, and an indicator light is fixedly connected to the top end of the mounting cylinder.

[0011] The technical effects and advantages of this utility model are as follows: 1. This utility model utilizes the operation of a cooling fan during the rotation of the rotating shaft body to deliver cold air into the cavity through the connecting pipe, annular pipe, and air inlet pipe. This increases the air pressure inside the cavity, causing it to expand and press tightly against the inside of the support plate. It also generates radial force on the rotating shaft body, preventing gaps at the contact points and ensuring sealing. When the air pressure inside the cavity reaches a certain value, the exhaust assembly opens, and the gas inside the cavity is discharged through the exhaust assembly. This allows the cold air to flow through the cavity and cool the sealing ring body, preventing the sealing ring body from overheating and causing damage.

[0012] 2. When the exhaust assembly of this utility model exhausts air, the sealing plug contacts the pressure switch, and the control indicator light emits a green light, reminding the operator that the sealing ring body is in normal use and the air supply speed of the air cooler is constant. During use, if the sealing ring body is damaged and leaks air, the exhaust speed of the sealing ring body increases. The internal pressure of the cavity cannot reach the pressure required to push the sealing plug upward to exhaust air through the exhaust assembly. This causes the pressure spring to push the sealing plug downward, separating the sealing plug from the pressure switch. The pressure switch control indicator light emits a red light, indicating to the operator that the sealing ring body is damaged and needs to be replaced in time, which helps to ensure the normal operation of the sealing ring. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the overall cross-sectional structure of this utility model; Figure 2 This is a schematic diagram of the overall structure of this utility model; Figure 3 For the present utility model Figure 2 Schematic diagram of the structure at point B; Figure 4 For the present utility model Figure 1 Schematic diagram of the structure at point A; Figure 5 This is a schematic diagram of the main structure of the sealing ring of this utility model; Figure 6 For the present utility model Figure 2 Schematic diagram of the cross-sectional structure at point B.

[0014] The attached figures are labeled as follows: 1. Rotating shaft body; 2. Sealing ring body; 201. Cavity; 202. Annular tube; 203. Exhaust assembly; 2031. Mounting cylinder; 2032. Indicator light; 2033. Exhaust port; 2034. Pressure spring; 2035. Buffer spring; 2036. Pressure switch; 2037. Sealing plug; 2038. Inclined surface; 2039. Air inlet; 204. Connecting pipe; 205. Air inlet pipe; 206. Exhaust port; 207. Thermally conductive resin; 3. Mounting shell; 301. Connecting block; 302. Mounting groove; 4. Support plate. Detailed Implementation

[0015] The technical solution of this utility model will be clearly and completely described below with reference to the accompanying drawings. In addition, the forms of the various structures described in the following embodiments are merely illustrative. The high-temperature resistant rotary shaft sealing ring involved in this utility model is not limited to the structures described in the following embodiments. All other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0016] Reference Figures 1 to 6This utility model provides a high-temperature resistant rotary shaft sealing ring, including a rotary shaft body 1, and further including: a sealing ring body 2, a mounting shell 3, and a support plate 4. The side of the rotary shaft body 1 is movably sleeved with the inner side wall of the support plate 4. The side of the sealing ring body 2 is fixedly connected with the inner side wall of the mounting shell 3. The side of the mounting shell 3 is fixed with the side of the support plate 4 by bolts. The inner side wall of the sealing ring body 2 is movably sleeved with the side of the rotary shaft body 1, and the side of the sealing ring body 2 is movably connected with the side of the support plate 4, thus providing a seal. The main body 2 of the sealing ring includes a cavity 201, an annular pipe 202, an exhaust assembly 203, a connecting pipe 204, an air inlet pipe 205, an exhaust port 206, thermally conductive resin 207, and a cooler. The cavity 201 is formed inside the sealing ring main body 2. The side of the annular pipe 202 is fixedly connected to the side of the mounting shell 3. The top end of the annular pipe 202 is connected to the output end of the cooler through the connecting pipe 204. The bottom end of the annular pipe 202 is fixedly connected to the top end of the cavity 201 through the air inlet pipe 205. A connecting pipe is fixedly connected to the side of the mounting shell 3. Connecting block 301 is bolted to the side of support plate 4. A mounting groove 302 is provided on the side of connecting block 301 corresponding to the position of exhaust assembly 203. During use, bolts are passed through connecting block 301 to fix mounting shell 3 to the side of support plate 4. The inner wall of the sealing ring body 2 is tightly attached to the side of rotating shaft body 1, and the side of the sealing ring body 2 is tightly attached to the side of support plate 4. During the rotation of rotating shaft body 1, the air cooler operates through connecting pipe 204, annular pipe 202, and inlet... Cold air is delivered into the cavity 201 through the air pipe 205, increasing the air pressure inside the cavity 201. This causes the cavity 201 to expand and press tightly against the inside of the support plate 4, generating radial force on the rotating shaft body 1. This prevents gaps at the contact point and ensures a tight seal. When the air pressure inside the cavity 201 reaches a certain value, the exhaust assembly 203 opens, and the gas inside the cavity 201 is discharged through the exhaust assembly 203. This allows the cold air to flow through the cavity 201 and cool the sealing ring body 2, preventing it from overheating and causing damage.

[0017] The exhaust assembly 203 is fixedly connected to the side of the mounting groove 302. The intake pipe 205 and the exhaust assembly 203 are evenly distributed on the side of the sealing ring body 2, and the intake pipe 205 and the exhaust assembly 203 are staggered. Cold air enters the cavity 201 from different directions and is discharged through the exhaust assembly 203, ensuring that the cold air flows through the entire cavity 201 to achieve cooling.

[0018] The thermally conductive resin 207 is evenly distributed inside the sealing ring body 2, and the top end of the thermally conductive resin 207 penetrates the cavity 201. The bottom end of the thermally conductive resin 207 is movably connected to the top end of the rotating shaft body 1. The heat generated by the rotating shaft body 1 during rotation is quickly transferred to the cavity 201 through the thermally conductive resin 207 to achieve cooling.

[0019] The exhaust assembly 203 includes a mounting cylinder 2031, the side of which is fixedly connected to the side of the mounting groove 302. A pressure spring 2034 is fixedly connected to the inner wall of the top of the mounting cylinder 2031, and a sealing plug 2037 is fixedly connected to the bottom end of the pressure spring 2034. An air inlet 2039 is provided at the bottom end of the mounting cylinder 2031 corresponding to the position of the exhaust port 206. The side of the air inlet 2039 is movably connected to the side of the sealing plug 2037. The top has an exhaust port 2033. When the sealing ring body 2 is not in use, the pressure spring 2034 is in a compressed state. When the pressure spring 2034 pushes the sealing plug 2037 downward, the sealing plug 2037 blocks the air inlet 2039. When the air pressure increases as air is filled into the cavity 201, it pushes the sealing plug 2037 upward, so that the air inside the cavity 201 is discharged through the exhaust port 206, the air inlet 2039 and the exhaust port 2033, so that the air flows inside the cavity 201 to cool it down.

[0020] The air inlet 2039 has a bevel 2038 on its side, and the sealing plug 2037 has a conical structure. The side of the sealing plug 2037 meshes with the side of the sealing plug 2037, increasing the contact area between the sealing plug 2037 and the bevel 2038 and improving the sealing performance.

[0021] A buffer spring 2035 is fixedly connected to the inner wall of the top of the mounting cylinder 2031. A pressure switch 2036 is fixedly connected to the bottom of the buffer spring 2035. An indicator light 2032 is fixedly connected to the top of the mounting cylinder 2031. When the exhaust assembly 203 exhausts air, the sealing plug 2037 contacts the pressure switch 2036, and the control indicator light 2032 emits a green light to remind the operator that the sealing ring body 2 is in normal use and the air supply speed of the air cooler is constant. During use, when the sealing ring body 2 is damaged and leaks air, the exhaust speed of the sealing ring body 2 increases. The internal pressure of the cavity 201 cannot reach the pressure required to push the sealing plug 2037 upward to exhaust air through the exhaust assembly 203. This causes the pressure spring 2034 to push the sealing plug 2037 downward, causing the sealing plug 2037 to separate from the pressure switch 2036. The pressure switch 2036 controls the indicator light 2032 to emit a red light, indicating to the operator that the sealing ring body 2 is damaged and needs to be replaced in time.

[0022] The working principle of this utility model is as follows: During use, the mounting shell 3 is fixed to the side of the support plate 4 by bolts passing through the connecting block 301. The inner wall of the side of the sealing ring body 2 is tightly attached to the side of the rotating shaft body 1, and the side of the sealing ring body 2 is tightly attached to the side of the support plate 4. At this time, the pressure spring 2034 is in a compressed state. When the pressure spring 2034 pushes the sealing plug 2037 downward, the sealing plug 2037 blocks the air inlet 2039, so that the cavity 201 is in a sealed state. When the rotating shaft body 1 rotates, the air cooler runs and delivers cold air to the cavity 201 through the connecting pipe 204, the annular pipe 202 and the air inlet pipe 205, which increases the air pressure inside the cavity 201, causing the cavity 201 to expand and tightly adhere to the inside of the support plate 4, and generate radial force on the rotating shaft body 1, avoiding gaps at the contact point and achieving a seal. As the air pressure inside the cavity 201 increases, it pushes the sealing... When the sealing plug 2037 moves upward, the air inside the cavity 201 is discharged through the exhaust port 206, the air inlet 2039, and the exhaust hole 2033, allowing the air to flow and cool inside the cavity 201. The sealing plug 2037 then contacts the pressure switch 2036, and the control indicator light 2032 emits a green light, reminding the operator that the sealing ring body 2 is in normal use. The air cooler's air supply speed is constant. During use, if the sealing ring body 2 is damaged and leaks, the exhaust speed of the sealing ring body 2 increases. The pressure inside the cavity 201 cannot reach the required level to push the sealing plug 2037 upward, venting through the exhaust assembly 203. This causes the pressure spring 2034 to push the sealing plug 2037 downward, separating it from the pressure switch 2036. The pressure switch 2036 then controls the indicator light 2032 to emit a red light, indicating to the operator that the sealing ring body 2 is damaged and needs to be replaced immediately.

[0023] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A high-temperature resistant rotary shaft seal ring, comprising a rotary shaft body (1), characterized in that, Also includes: The sealing ring body (2), mounting shell (3), and support plate (4) are provided. The side of the rotating shaft body (1) is movably sleeved with the inner wall of the side of the support plate (4). The side of the sealing ring body (2) is fixedly connected with the inner wall of the side of the mounting shell (3). The side of the mounting shell (3) is fixed with the side of the support plate (4) by bolts. The inner wall of the side of the sealing ring body (2) is movably sleeved with the side of the rotating shaft body (1). The side of the sealing ring body (2) is movably connected with the side of the support plate (4). The sealing ring body (2) includes a cavity (201), an annular pipe (202), an exhaust assembly (203), a connecting pipe (204), an intake pipe (205), and an exhaust port (206). 6) Thermally conductive resin (207) and air cooler. The cavity (201) is opened inside the sealing ring body (2). The side of the annular tube (202) is fixedly connected to the side of the mounting shell (3). The top end of the annular tube (202) is connected to the output end of the air cooler through the connecting pipe (204). The bottom end of the annular tube (202) is fixedly connected to the top end of the cavity (201) through the air inlet pipe (205). The side of the mounting shell (3) is fixedly connected to the connecting block (301). The side of the connecting block (301) is fixed to the side of the support plate (4) by bolts. The side of the connecting block (301) is provided with a mounting groove (302) corresponding to the position of the exhaust assembly (203).

2. The high-temperature resistant rotary shaft seal ring according to claim 1, characterized in that: The exhaust assembly (203) is fixedly connected to the side of the mounting groove (302). The intake pipe (205) and the exhaust assembly (203) are evenly distributed on the side of the sealing ring body (2), and the intake pipe (205) and the exhaust assembly (203) are staggered.

3. The high-temperature resistant rotary shaft seal ring according to claim 1, characterized in that: The thermally conductive resin (207) is evenly distributed inside the sealing ring body (2), and the top end of the thermally conductive resin (207) penetrates the cavity (201), while the bottom end of the thermally conductive resin (207) is movably connected to the top end of the rotating shaft body (1).

4. The high-temperature resistant rotary shaft seal ring according to claim 2, characterized in that: The exhaust assembly (203) includes an installation cylinder (2031), the side of which is fixedly connected to the side of the installation groove (302), a pressure spring (2034) is fixedly connected to the inner wall of the top of the installation cylinder (2031), a sealing plug (2037) is fixedly connected to the bottom of the pressure spring (2034), an air inlet (2039) is provided at the bottom of the installation cylinder (2031) corresponding to the exhaust port (206), the side of the air inlet (2039) is movably connected to the side of the sealing plug (2037), and an exhaust hole (2033) is provided at the top of the installation cylinder (2031).

5. A high-temperature resistant rotary shaft seal ring according to claim 4, characterized in that: The air inlet (2039) has a bevel (2038) on its side, and the sealing plug (2037) has a conical structure. The side of the sealing plug (2037) meshes with the side of the sealing plug (2037).

6. The high-temperature resistant rotary shaft seal ring according to claim 4, characterized in that: A buffer spring (2035) is fixedly connected to the inner wall of the top end of the mounting cylinder (2031), a pressure switch (2036) is fixedly connected to the bottom end of the buffer spring (2035), and an indicator light (2032) is fixedly connected to the top end of the mounting cylinder (2031).

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