Floating oil seal with efficient heat dissipation function

Abstract

The utility model relates to the field of floating oil seals, in particular to an efficient heat dissipation floating oil seal. The technical problems that in the prior art, heat cannot be fully transmitted to the whole floating seal ring for cooling, and the cooling efficiency of the whole floating seal ring is low are solved. According to the technical scheme, the floating oil seal with the efficient heat dissipation function comprises a floating seal base, a floating seal ring and the like. The inner surfaces of the two floating seal seats are each sleeved with a floating seal ring. After the inert gas is heated through the heat conduction ring, the inert gas uniformly transfers heat to the heat dissipation cavity, so that the heat of the contact surface of the floating seal ring is uniformly conducted to the whole floating seal ring, and the heat dissipation effect is effectively improved; the floating oil seal can be directly contacted with the heat-conducting gasket for heat conduction, then the heat-conducting gasket dissipates heat to the corresponding wall surface of the cavity, and at the moment, efficient heat dissipation of the floating oil seal can be achieved only by strongly cooling the local position.

Description

Technical Field

[0001] The utility model relates to the field of floating oil seals, in particular to a floating oil seal with high-efficiency heat dissipation. Background Art

[0002] Floating oil seal is a kind of mechanical seal, mainly used in low speed and heavy load occasions. It has the advantages of wear resistance, automatic end face compensation and reliable operation.

[0003] In actual use, the two floating seal rings will rotate relative to each other, so a large amount of heat will be generated between the two floating seal rings due to friction, which will cause the temperature of the contact surfaces of the two floating seal rings to rise rapidly, the wear of the floating seal rings to increase, and the service life of the floating oil seal is reduced. In the prior art, Chinese patent: (CN214699185U) a high wear-resistant floating oil seal ring, which is achieved by adding an annular heat sink, a heat sink connecting plate, a thermal pad, a first heat sink, a second heat sink, a third heat sink and other parts in the floating seal ring, thereby quickly transferring the heat of the contact surface to the entire floating seal ring, thereby reducing the heat of the contact surface, but due to the arrangement of the heat sink, the heat cannot be completely transferred to the entire floating seal ring, so the heat dissipation effect of the floating seal ring is affected by the arrangement of the heat sink, and after the heat is transferred to the entire floating seal ring, the entire floating seal ring needs to be cooled in the subsequent cooling process, the overall cooling efficiency of the floating seal ring is not high, and the heat dissipation efficiency of the floating seal ring is low. Utility Model Content

[0004] The technical problems of the utility model are:

[0005] In order to overcome the shortcomings of the prior art that heat cannot be fully transferred to the entire floating seal ring for cooling and the cooling efficiency of the entire floating seal ring is low, the utility model provides a floating oil seal with high efficiency in heat dissipation.

[0006] The technical implementation scheme adopted by this utility model is:

[0007] A floating oil seal with high-efficiency heat dissipation comprises a floating seal seat, a floating seal ring and a sealing ring; a floating seal ring is sleeved on the inner surface of each of the two floating seal seats; a sealing ring is installed between each floating seal ring and the corresponding floating seal seat; a heat conduction ring and heat dissipation fins are also included; a heat dissipation cavity is opened in each floating seal ring; a heat conduction ring is arranged in each heat dissipation cavity; the heat conduction ring does not contact the inner wall of the heat dissipation cavity; a plurality of heat dissipation fins are fixedly connected to the side where the two heat conduction rings are close to each other; and the side where the two heat dissipation cavities are close to each other is fixedly connected to the corresponding heat dissipation fins.

[0008] Furthermore, it is particularly preferred that all the heat dissipating fins in the heat conducting ring are coaxial.

[0009] In addition, it is particularly preferred that the distance between adjacent heat dissipating fins in the heat conductive ring gradually decreases from the center to the edge of the heat conductive ring.

[0010] Furthermore, it is particularly preferred that a plurality of arc-shaped grooves are respectively formed on one side of the heat-conducting ring close to the center thereof.

[0011] In addition, it is particularly preferred that a thermally conductive gasket is further included; one thermally conductive gasket is fixedly connected to each side of the two thermally conductive rings away from the heat dissipation fins; and one side of the two thermally conductive gaskets away from each other is in contact with each heat dissipation cavity.

[0012] In addition, it is particularly preferred that a heat pipe is further included; two thermally conductive gaskets are close to the thermally conductive ring. In addition, it is particularly preferred that the heat pipe corrugated disk is on the thermally conductive gasket.

[0013] Compared with the prior art, the utility model has the following advantages: 1. The heat-conducting ring of the utility model is not in direct contact with the heat dissipation cavity. After the heat-conducting ring heats the inert gas, the inert gas fills the heat dissipation cavity again. Therefore, the inert gas evenly transfers heat to the heat dissipation cavity, thereby evenly transferring the heat on the contact surface of the floating seal ring to the entire floating seal ring, effectively improving the heat dissipation effect.

[0014] By arranging a thermally conductive gasket between the sides of the two thermally conductive rings that are away from each other and the corresponding heat dissipation cavity, the heat on the thermally conductive ring can not only be transferred to the inert gas, but also be transferred to the thermally conductive gasket by direct contact. The thermally conductive gasket then transfers the heat to the wall of the heat dissipation cavity away from the heat dissipation fins by direct contact. At this time, only the heat dissipation mechanism provided outside the floating seal ring and the location of the thermally conductive gasket need to be strongly cooled to achieve efficient heat dissipation of the floating oil seal. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a three-dimensional structural schematic diagram of the floating oil seal with high efficiency heat dissipation of the utility model;

[0016] Figure 2 It is an exploded view of the floating oil seal with high efficiency heat dissipation of the utility model;

[0017] Figure 3 It is a cross-sectional view of the floating oil seal with high efficiency heat dissipation of the utility model;

[0018] Figure 4 This is a schematic diagram of the installation position of the heat conducting ring of the utility model.

[0019] In the figure: 1-floating seal seat, 2-floating seal ring, 3-sealing ring, 4-thermal conductive ring, 5-heat dissipation fin, 6-thermal conductive gasket, 7-heat pipe, 2001-heat dissipation cavity, 4001-arc groove. DETAILED DESCRIPTION

[0020] In order to make the purpose, technical solution and advantages of the utility model clearer, the utility model is further described in detail below in combination with specific implementation methods and with reference to the accompanying drawings. It should be understood that these descriptions are only exemplary and are not intended to limit the scope of the utility model. In addition, in the following description, the description of well-known structures and technologies is omitted to avoid unnecessary confusion of the concept of the utility model.

[0021] Example

[0022] A floating oil seal with high efficiency in heat dissipation, as shown in the figure, comprises a floating seal seat 1, a floating seal ring 2 and a sealing ring 3; a floating seal ring 2 is sleeved on the inner surface of each of the two floating seal seats 1; a sealing ring 3 is installed between each floating seal ring 2 and the corresponding floating seal seat 1, and the sealing ring 3 is O-shaped;

[0023] It also includes a heat-conducting ring 4 and heat-dissipating fins 5; each floating seal ring 2 has a heat-dissipating cavity 2001; each heat-dissipating cavity 2001 has a heat-conducting ring 4; the heat-conducting ring 4 does not contact the inner wall of the heat-dissipating cavity 2001; a plurality of heat-dissipating fins 5 are welded on the side where two heat-conducting rings 4 are close to each other; the side where two heat-dissipating cavities 2001 are close to each other is welded to the corresponding heat-dissipating fins 5.

[0024] All the heat dissipation fins 5 in the heat-conducting ring 4 are coaxial.

[0025] The distance between adjacent heat dissipation fins 5 in the heat conductive ring 4 gradually decreases from the center to the edge of the heat conductive ring 4 .

[0026] A plurality of arc grooves 4001 are formed on one side of the heat conducting ring 4 close to the center thereof.

[0027] It also includes a heat-conducting gasket 6 ; one side of the two heat-conducting rings 4 away from the heat-dissipating fins 5 is fixedly connected with a heat-conducting gasket 6 ; and one side of the two heat-conducting gaskets 6 away from each other is in contact with a heat-dissipating cavity 2001 .

[0028] Also includes a heat pipe 7; two heat conductive pads 6 close to the heat conductive ring 4

[0029] The heat pipe 7 is coiled on the thermal conductive pad 6 in a wave shape.

[0030] See attached Figure 1-4 , the specific usage process is:

[0031] Inert gas is poured into the heat dissipation cavity 2001, and the heat dissipation cavity 2001 is sealed;

[0032] Before use, the floating seal rings 2 are respectively installed in the corresponding floating seal seats 1, and an O-shaped sealing ring 3 is installed between the floating seal ring 2 and the floating seal seat 1. The floating seal seat 1 is then installed on the shaft of the rotating equipment. The O-shaped sealing ring 3 is used to seal the floating oil seal;

[0033] When in use, the two floating seal rings 2 will rotate relative to each other, and a large amount of heat will be generated on the contact surfaces of the two floating seal rings 2. At this time, the heat on the contact surfaces of the two floating seal rings 2 is transferred to the heat-conducting ring 4 through the heat dissipation fins 5, wherein the heat conduction efficiency on the heat dissipation fins 5 is greater than the heat conduction efficiency directly to the inert gas. Thus, the heat generated on the contact surface is quickly transferred to the heat-conducting ring 4 through the heat dissipation fins 5, thereby achieving heat dissipation of the floating seal ring 2. Then, since the heat-conducting ring 4 is not in direct contact with the heat dissipation cavity 2001, the heat-conducting ring 4 transfers the heat to the inert gas in the heat dissipation cavity 2001, and the temperature of the inert gas increases, and the inert gas fills the heat dissipation cavity 2001. Then, the inert gas transfers the heat evenly to the side wall of the heat dissipation cavity 2001, thereby achieving even heat transfer to the floating seal ring 2. Thus, the heat on the contact surface of the floating seal ring 2 is evenly transferred to the entire floating seal ring 2, thereby effectively improving the heat dissipation effect.

[0034] Considering the different usage conditions of the floating oil seal, it is impossible to achieve efficient heat dissipation of the entire floating seal ring 2 of the floating oil seal over a large area, but only efficient heat dissipation can be provided locally. At this time, a heat-conducting gasket 6 is respectively arranged between the side of the two heat-conducting rings 4 that are away from each other and the corresponding heat dissipation cavity 2001. Therefore, in addition to conducting heat to the inert gas, the heat on the heat-conducting ring 4 can also be conducted to the heat-conducting gasket 6 by direct contact, and then the heat-conducting gasket 6 conducts the heat to the wall of the heat dissipation cavity 2001 away from the heat dissipation fin 5 by direct contact. At this time, only the heat dissipation mechanism provided outside the floating seal ring 2 and the location of the heat-conducting gasket 6 need to be strongly cooled to achieve efficient heat dissipation of the floating oil seal.

[0035] Considering that when the heat conducting ring 4 conducts heat to the inert gas, the surface area of ​​the heat conducting ring 4 directly affects the heat conducting efficiency to the inert gas. At this time, by providing a plurality of arc grooves 4001 on the heat conducting ring 4, the contact area between the heat conducting ring 4 and the inert gas is increased, thereby effectively improving the heat conducting efficiency of the heat conducting ring 4, and further improving the heat dissipation efficiency of the floating oil seal.

[0036] By arranging a plurality of heat pipes 7 on the thermally conductive gasket 6, the contact area between the thermally conductive gasket 6 and the thermally conductive ring 4 is increased, thereby effectively increasing the heat conduction efficiency of the thermally conductive ring 4. By bending the heat pipe 7 in a wave shape and coiling it on the thermally conductive gasket 6, the thermally conductive ring 4 has a larger contact area per unit area with the heat pipe 7 in a wave shape than with the heat pipe 7 in a ring shape, thereby further increasing the heat conduction efficiency of the thermally conductive ring 4 to the heat pipe 7, achieving rapid heat transfer, and further improving the heat dissipation effect of the floating oil seal.

[0037] The technical principles of the embodiments of the present utility model are described above in combination with specific embodiments. These descriptions are only for explaining the principles of the embodiments of the present utility model, and cannot be interpreted in any way as limiting the protection scope of the embodiments of the present utility model. Based on the explanations here, technicians in this field can think of other specific implementation methods of the embodiments of the present utility model without creative work, and these methods will fall within the protection scope of the embodiments of the present utility model.

Claims

1. A floating oil seal with high heat dissipation efficiency, comprising a floating seal seat (1), a floating seal ring (2) and a sealing ring (3); a floating seal ring (2) is sleeved on the inner surface of each of the two floating seal seats (1); a sealing ring (3) is installed between each floating seal ring (2) and the corresponding floating seal seat (1); the characteristics are: It also comprises a heat-conducting ring (4) and heat-dissipating fins (5); each floating seal ring (2) is provided with a heat-dissipating cavity (2001); each heat-dissipating cavity (2001) is provided with a heat-conducting ring (4); the heat-conducting ring (4) does not contact the inner wall of the heat-dissipating cavity (2001); a plurality of heat-dissipating fins (5) are fixedly connected to the sides of the two heat-conducting rings (4) close to each other; and the sides of the two heat-dissipating cavities (2001) close to each other are fixedly connected to the corresponding heat-dissipating fins (5).

2. A floating oil seal with high heat dissipation efficiency according to claim 1, characterized in that: All the heat dissipation fins (5) in the heat conduction ring (4) are coaxial.

3. A floating oil seal with high heat dissipation efficiency according to claim 1, characterized in that: The distance between adjacent heat dissipation fins (5) in the heat conductive ring (4) gradually decreases from the center to the edge of the heat conductive ring (4).

4. A floating oil seal with high heat dissipation efficiency according to claim 1, characterized in that: A plurality of arc-shaped grooves (4001) are respectively formed on one side of the heat-conducting ring (4) close to the center thereof.

5. A floating oil seal with high heat dissipation efficiency according to any one of claims 1 to 4, characterized in that: It also includes a heat-conducting gasket (6); one side of the two heat-conducting rings (4) away from the heat-dissipating fins (5) is fixedly connected to each heat-conducting gasket (6); and the sides of the two heat-conducting gaskets (6) away from each other are in contact with each heat-dissipating cavity (2001).

6. A floating oil seal with high heat dissipation efficiency according to claim 5, characterized in that: The heat pipe (7) is coiled in a wave shape on the thermal conductive pad (6).

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