CN116104946A - External sealing type floating oil seal for chain wheel assembly - Google Patents

External sealing type floating oil seal for chain wheel assembly Download PDF

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Publication number
CN116104946A
CN116104946A CN202111317443.XA CN202111317443A CN116104946A CN 116104946 A CN116104946 A CN 116104946A CN 202111317443 A CN202111317443 A CN 202111317443A CN 116104946 A CN116104946 A CN 116104946A
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CN
China
Prior art keywords
floating
sealing
floating seal
seat
rings
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Pending
Application number
CN202111317443.XA
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Chinese (zh)
Inventor
孙建萍
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Shanxi Jinggong Tianyou Coal Mine Machinery Manufacturing Co ltd
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Shanxi Jinggong Tianyou Coal Mine Machinery Manufacturing Co ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
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Publication date
Application filed by Shanxi Jinggong Tianyou Coal Mine Machinery Manufacturing Co ltd filed Critical Shanxi Jinggong Tianyou Coal Mine Machinery Manufacturing Co ltd
Priority to CN202111317443.XA priority Critical patent/CN116104946A/en
Publication of CN116104946A publication Critical patent/CN116104946A/en
Pending legal-status Critical Current

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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16J—PISTONS; CYLINDERS; SEALINGS
    • F16J15/00—Sealings
    • F16J15/16—Sealings between relatively-moving surfaces
    • F16J15/34—Sealings between relatively-moving surfaces with slip-ring pressed against a more or less radial face on one member
    • F16J15/3404—Sealings between relatively-moving surfaces with slip-ring pressed against a more or less radial face on one member and characterised by parts or details relating to lubrication, cooling or venting of the seal
    • F16J15/3408—Sealings between relatively-moving surfaces with slip-ring pressed against a more or less radial face on one member and characterised by parts or details relating to lubrication, cooling or venting of the seal at least one ring having an uneven slipping surface
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16J—PISTONS; CYLINDERS; SEALINGS
    • F16J15/00—Sealings
    • F16J15/16—Sealings between relatively-moving surfaces
    • F16J15/34—Sealings between relatively-moving surfaces with slip-ring pressed against a more or less radial face on one member
    • F16J15/3436—Pressing means
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16J—PISTONS; CYLINDERS; SEALINGS
    • F16J15/00—Sealings
    • F16J15/16—Sealings between relatively-moving surfaces
    • F16J15/34—Sealings between relatively-moving surfaces with slip-ring pressed against a more or less radial face on one member
    • F16J15/3464—Mounting of the seal
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16J—PISTONS; CYLINDERS; SEALINGS
    • F16J15/00—Sealings
    • F16J15/16—Sealings between relatively-moving surfaces
    • F16J15/34—Sealings between relatively-moving surfaces with slip-ring pressed against a more or less radial face on one member
    • F16J15/38—Sealings between relatively-moving surfaces with slip-ring pressed against a more or less radial face on one member sealed by a packing

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Gears, Cams (AREA)

Abstract

The invention relates to an external sealing type floating oil seal for a chain wheel assembly, belonging to the technical field of floating oil seals; the sealing device comprises two groups of symmetrical sealing rings and floating sealing rings, wherein the sealing rings are sleeved on the outer sides of the floating sealing rings, and the outer sides of each group of sealing rings and the floating sealing rings are respectively sleeved with a corresponding floating sealing seat; the large end faces of the two floating seal rings are sealing end faces, the two sealing end faces are mutually clung, the outer edge of each sealing end face is of an inclined plane structure, the inner edge is of a plane structure, when the sealing end faces are mutually clung, the plane structures of the inner edges are mutually clung and contacted, and the two inclined plane structures of the outer edge jointly form an annular V-shaped groove; the two floating seal seats are of annular structures, and are respectively an inner floating seal seat and an outer floating seal seat, the inner side surface of the inner floating seal seat is fixedly connected with the chain wheel shaft, and the outer side surface of the outer floating seal seat is fixedly connected with the inner wall of the bearing seat; solves the problem that the prior chain wheel component lacks an external sealing floating oil seal.

Description

External sealing type floating oil seal for chain wheel assembly
Technical Field
The invention belongs to the technical field of floating oil seals, and particularly relates to an external sealing type floating oil seal for a chain wheel assembly.
Background
A floating oil seal is required on the sprocket assembly to keep the lubrication oil inside the chamber in which the bearing is located from escaping outside or into other chambers inside the sprocket assembly, as shown in fig. 1 and 2. The existing floating oil seal is usually an internal sealing floating oil seal, such as reference numeral 6 in fig. 2, which is used for preventing the oil on the inner side from escaping to the outer side, so that V-shaped grooves are only formed on the inner side edges of the sealing end surfaces where the two floating seal rings are tightly attached to each other, so that the lubricating oil can lubricate and cool the floating seal rings. However, the sprocket assembly needs to use an external sealing type floating oil seal to prevent oil liquid at the outer side from entering the inside, and the existing internal sealing type floating oil seal and a floating seal seat thereof cannot be directly applied to a place where the external sealing type floating oil seal is required to be sealed, so that the external sealing type floating oil seal and the floating seal seat matched with the external sealing type floating oil seal are required.
Disclosure of Invention
The invention overcomes the defects of the prior art and provides an external sealing floating oil seal for a chain wheel assembly; solves the problem that the prior chain wheel component lacks an external sealing floating oil seal.
In order to achieve the above purpose, the present invention is realized by the following technical scheme.
The outer sealing type floating oil seal comprises two groups of symmetrical sealing rings and floating seal rings, wherein each group of sealing rings and each floating seal ring are respectively one, the sealing rings are sleeved on the outer sides of the floating seal rings, and the outer sides of each group of sealing rings and each floating seal ring are respectively sleeved with a corresponding floating seal seat; the large end faces of the two floating seal rings are sealing end faces, the two sealing end faces are mutually clung, the outer edge of the sealing end faces is of an inclined plane structure, the inner edge is of a plane structure, when the sealing end faces of the two floating seal rings are mutually clung, the plane structures of the inner edge are mutually clung and contacted, the two inclined plane structures of the outer edge jointly form an annular V-shaped groove, and the opening of the V-shaped groove faces the outer side of the floating seal ring; the two floating seal seats are annular structures, namely an inner floating seal seat and an outer floating seal seat, wherein the inner side surface of the inner floating seal seat is fixedly connected with the chain wheel shaft, and the outer side surface of the outer floating seal seat is fixedly connected with the inner wall of the bearing seat.
Further, the small end faces of the two floating seal rings are respectively positioned at the opposite ends of the two floating seal rings.
Further, an inclined ring groove is formed in the outer wall of the floating seal ring, and the inclination is 15-25 degrees; the sealing ring is sleeved on the inclined ring groove, and the inner side surface of the sealing ring is tightly attached to the bottom end surface of the inclined ring groove.
Further, be provided with the bearing between sprocket shaft and the bearing frame, the sprocket shaft passes through the bearing and rotates in the bearing frame to be connected, and the one end that the sprocket was kept away from to the bearing frame is provided with the end cover, outer sealed floating oil blanket sets up in the one side that the bearing is close to the end cover.
Further, the inner floating seal seat is arranged on one side of the bearing close to the end cover, the two groups of floating seal rings and the sealing ring are arranged on one side of the inner floating seal seat away from the bearing, the end face of one side of the inner floating seal seat away from the bearing is provided with a first annular groove which is concave inwards, and the group of sealing rings and the floating seal rings corresponding to the inner floating seal seat are arranged in the first annular groove.
Further, the outer side inner wall surface of the first annular groove is of an annular inclined surface structure with a narrow outer width, and the outer side surface of the sealing ring arranged in the inner floating seal seat is tightly attached to the outer side inner wall surface of the first annular groove.
Further, the outer floating seal seat is sleeved on the outer side of the inner floating seal seat and a group of sealing rings and floating seal rings corresponding to the outer floating seal seat, two adjacent annular grooves are formed in the inner side surface of the outer floating seal seat, namely a second annular groove and a third annular groove, the inner wall surface of the second annular groove is of an equal-thickness cylindrical surface structure, the inner diameter of the second annular groove is slightly larger than the diameter of the outer side surface of the inner floating seal seat, and the inner floating seal seat is arranged in the second annular groove.
Further, the inner wall surface of the third annular groove is of an annular inclined surface structure, and the diameter of one end, close to the bearing, is larger than that of one end, far away from the bearing; the outer side surface of the sealing ring corresponding to the outer floating seal seat is tightly attached to the inner wall surface of the third annular groove.
Further, the method comprises the steps of: the outer side surface of the outer floating seal seat is tightly contacted with the inner wall surface of the bearing seat, a peripheral annular bulge is arranged at the edge of one end of the outer side surface, which is far away from the bearing, a bolt counter bore is uniformly arranged on the annular bulge along the peripheral ring, the annular bulge is arranged on a step on the inner side surface of the bearing seat, and the annular bulge passes through the bolt counter bore on the annular bulge through a fixing bolt to be fixedly connected with the bearing seat.
Compared with the prior art, the invention has the following beneficial effects:
(1) The external sealing type floating oil seal for the chain wheel assembly provided by the invention can be applied to the position preventing oil from escaping from the outer side and the inner side through designing the matched inner floating seal seat and the matched outer floating seal seat, and ensures that the floating seal ring can be tightly attached under the functions of the floating seal seat and the sealing ring all the time when relatively rotating, thereby providing installation and action foundation for normal operation of the floating oil seal.
(2) According to the external sealing type floating oil seal for the chain wheel assembly, the V-shaped grooves are formed in the outer edges of the sealing end faces, which are mutually clung, of the floating seal rings, so that lubricating oil on the outer sides can enter the V-shaped grooves to lubricate and cool the floating seal rings, and the service life of the floating seal rings can be greatly prolonged.
Drawings
The invention is described in further detail below with reference to the accompanying drawings:
FIG. 1 is a schematic structural view of the sprocket assembly as a whole;
FIG. 2 is an enlarged partial schematic view of FIG. 1;
FIG. 3 is a schematic overall construction of the present invention;
FIG. 4 is a schematic view of the structure of the floating seal ring according to the present invention;
FIG. 5 is a schematic view of the inner floating seal holder according to the present invention;
FIG. 6 is a schematic view of the structure of the outer floating seal holder according to the present invention;
wherein, 1 is the sprocket shaft, 2 is the sprocket, 3 is the bearing frame, 4 is the end cover, 5 is the bearing, 6 is interior sealed floating oil blanket, 7 is outer sealed floating oil blanket, 8 is interior floating seal seat, 9 is outer floating seal seat, 10 is floating seal ring, 11 is the sealing washer, 12 is V-arrangement recess, 13 is sealed terminal surface, 14 is little terminal surface, 15 is oblique annular, 16 is first annular groove, 17 is annular bulge, 18 is the bolt counter bore, 19 is the second annular groove, 20 is the third annular groove, 21 is the annular face.
Detailed Description
In order to make the technical problems, technical schemes and beneficial effects to be solved more clear, the invention is further described in detail by combining the embodiments and the drawings. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the invention. The following describes the technical scheme of the present invention in detail with reference to examples and drawings, but the scope of protection is not limited thereto.
As shown in fig. 3-6, the invention provides an external sealing type floating oil seal for a sprocket assembly, which comprises two groups of symmetrical sealing rings 11 and floating seal rings 10, wherein each group of sealing rings 11 and floating seal rings 10 are respectively one, the sealing rings 11 are sleeved on the outer sides of the floating seal rings 10, and the outer sides of each group of sealing rings 11 and the floating seal rings 10 are respectively sleeved with a corresponding floating seal seat.
The floating seal ring 10 is made of a ferrous alloy material, and the seal ring 11 is made of a rubber material with elasticity.
The large end surfaces of the two floating seal rings 10 are mutually clung, and the small end surfaces 14 are respectively positioned at the opposite ends of the two floating seal rings 10. The large end face of the floating seal ring 10 is a seal end face 13, the outer edge of the seal end face 13 is of an inclined plane structure, and the inner edge of the seal end face is of a plane structure. When the sealing end surfaces 13 of the two floating seal rings 10 are tightly attached, the plane structures of the inner edges are tightly attached to each other, the two inclined structures of the outer edges form an annular V-shaped groove 12 together, and the opening of the V-shaped groove 12 faces the outer side of the floating seal ring 10.
The outer wall of the floating seal ring 10 is provided with an inclined ring groove 15 with the inclination of 15-25 degrees, one end, close to the small end face 14, of the inclined ring groove 15 is lower than one end, close to the sealing end face 13, of the inclined ring groove 15, and the joint of the inclined ring groove 15 and the outer wall of the floating seal ring 10 is in smooth transition. The sealing ring 11 is sleeved on the inclined ring groove 15, and the inner side surface of the sealing ring 11 is tightly attached to the bottom end surface of the inclined ring groove 15.
The number of the floating seal seats is two, and the floating seal seats are respectively sleeved on the outer sides of the two groups of seal rings 11 and the floating seal ring 10. The two floating seal seats are of annular structures, namely an inner floating seal seat 8 and an outer floating seal seat 9, the inner side surface of the inner floating seal seat 8 is fixedly connected with the chain wheel shaft 1, and the outer side surface of the outer floating seal seat 9 is fixedly connected with the inner wall of the bearing seat 3.
A bearing 5 is arranged between the chain wheel shaft 1 and the bearing seat 3, and the chain wheel shaft 1 is rotationally connected in the bearing seat 3 through the bearing 5. The end of the bearing housing 3 remote from the sprocket 2 is provided with an end cap 4. The external sealing floating oil seal 7 is arranged on one side of the bearing 5 close to the end cover 4, so that lubricating oil in a chamber where the bearing 5 is positioned is prevented from leaking from the outer side of the sprocket shaft 1 to the inner side of the sprocket shaft 1.
The inner floating seal seat 8 is arranged on one side of the bearing 5 close to the end cover 4 and is closely arranged with the inner ring of the bearing 5 in the axial direction. Two groups of floating seal rings 10 and sealing rings 11 are arranged on one side of the inner floating seal seat 8 far away from the bearing 5. The end face of the inner floating seal seat 8, which is far away from one side of the bearing 5, is provided with a first inward concave annular groove 16, and a group of sealing rings 11 and floating seal rings 10 corresponding to the inner floating seal seat 8 are arranged in the first annular groove 16. The outer side inner wall surface of the first annular groove 16 is an annular inclined surface structure with a narrow outer width, and the outer side surface of the sealing ring 11 arranged in the inner floating seal seat 8 is tightly attached to the outer side inner wall surface of the first annular groove 16. The diameter of the inner wall surface of the first annular groove 16 is smaller than the inner diameter of the floating seal ring 10.
The outer floating seal seat 9 is sleeved outside the inner floating seal seat 8 and a group of sealing rings 11 and floating seal rings 10 corresponding to the inner floating seal seat. The outer side surface of the outer floating seal seat 9 is tightly contacted with the inner wall surface of the bearing seat 3, a circular ring-shaped bulge 17 is arranged at the edge of one end of the outer side surface far away from the bearing 5, bolt counter bores 18 are uniformly formed in the circular ring-shaped bulge 17 along the circular ring, the circular ring-shaped bulge 17 is arranged on a step on the inner side surface of the bearing seat 3, and the outer floating seal seat 9 is fixedly connected with the bearing seat 3 by penetrating through the bolt counter bores 8 in the circular ring-shaped bulge 17 through a fixing bolt.
The inner side surface of the outer floating seal seat 9 is provided with two adjacent annular grooves, namely a second annular groove 19 and a third annular groove 20, and the second annular groove 19 and the third annular groove 10 are in transition through an annular surface 21 perpendicular to the axis of the sprocket shaft 1. The inner wall surface of the second annular groove 19 is of an equal-thick cylindrical surface structure, the inner diameter of the second annular groove is slightly larger than the diameter of the outer side surface of the inner floating seal seat 9, and the inner floating seal seat 9 is arranged in the second annular groove 19 and is spaced from the inner wall surface of the second annular groove 20 and the transitional annular surface 21.
The inner wall surface of the third annular groove 20 is an annular inclined surface structure, and the diameter of one end close to the bearing 5 is larger than that of one end far away from the bearing 5. The outer side surface of the sealing ring 11 corresponding to the outer floating seal seat 9 is tightly attached to the inner wall surface of the third annular groove 20.
The working principle of the invention is as follows:
when the sealing device is used, the inner floating seal seat 8, the outer floating seal seat 9, the two groups of sealing rings 11 and the floating seal ring 10 are sequentially installed, and as the inclined ring groove 15 with inclination is arranged on the floating seal ring 10, the annular grooves with annular inclined planes matched with the sealing rings 11 are arranged on the floating seal seat 15, the sealing rings 11 are pressed in the inclined ring groove 15 by the inner floating seal seat and the outer floating seal seat, and the sealing rings 11 can be completely and tightly attached to the inclined ring groove 15.
The seal ring 11 is deformed by the axial pressing force of the floating seal seat, and generates a pressing force on the seal end surfaces 13 where the floating seal rings 10 are in contact with each other, so that the two floating seal rings 10 are closely attached together. Along with the continuous relative rotation of the two floating seal rings 10, the two contacted seal end surfaces 13 are continuously and uniformly worn, so that the elastic energy stored by the elastic seal ring 11 is continuously released, and the seal end surfaces 13 of the two floating seal rings 10 can be continuously attached together, thereby playing a role in axial compensation.
The lubricating oil in the cavity where the bearing 5 is located passes through the gap between the inner floating seal seat 8 and the outer floating seal seat 9 to reach the outer sides of the two floating seal rings 10, and as the two floating seal rings 10 are kept tightly attached under the compression of the floating seal seat and the sealing ring 11 all the time, even if the two floating seal rings 10 rotate relatively all the time, the sealing end faces 13 which are in contact with each other are kept tightly attached all the time, so that the lubricating oil is sealed at the outer side of the outer sealing type floating oil seal 7 and cannot enter the inner chain wheel shaft 1 side, thereby playing the role of sealing oil.
Meanwhile, as the outer edges of the two mutually contacted sealing end surfaces 13 jointly form the annular V-shaped groove 12, lubricating oil can enter the V-shaped groove 12, the lubricating oil can lubricate and cool the two relatively rotating floating seal rings 10, and the service life of the floating seal rings 10 can be greatly prolonged.
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are, therefore, to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Claims (9)

1. An external seal type floating oil seal for a sprocket assembly, which is characterized in that: the sealing device comprises two groups of symmetrical sealing rings (11) and floating sealing rings (10), wherein each group of sealing rings (11) and floating sealing rings (10) are respectively one, the sealing rings (11) are sleeved on the outer sides of the floating sealing rings (10), and the outer sides of each group of sealing rings (11) and the floating sealing rings (10) are respectively sleeved with a corresponding floating sealing seat;
the large end faces of the two floating seal rings (10) are sealing end faces (13), the two sealing end faces (13) are mutually clung, the outer edge of the sealing end faces (13) is of an inclined plane structure, the inner edge is of a plane structure, when the sealing end faces (13) of the two floating seal rings (10) are mutually clung, the plane structures of the inner edges are mutually clung and contacted, the two inclined plane structures of the outer edge jointly form an annular V-shaped groove (12), and the opening of the V-shaped groove (12) faces the outer side of the floating seal ring (10);
the two floating seal seats are of annular structures, and are respectively an inner floating seal seat (8) and an outer floating seal seat (9), the inner side surface of the inner floating seal seat (8) is fixedly connected with the chain wheel shaft (1), and the outer side surface of the outer floating seal seat (9) is fixedly connected with the inner wall of the bearing seat (3).
2. An externally sealed floating oil seal for a sprocket assembly according to claim 1 wherein: the small end faces (14) of the two floating seal rings (10) are respectively positioned at the opposite ends of the two floating seal rings (10).
3. An externally sealed floating oil seal for a sprocket assembly according to claim 1 wherein: an inclined ring groove (15) is formed in the outer wall of the floating seal ring (10), and the inclination is 15-25 degrees; the sealing ring (11) is sleeved on the inclined ring groove (15), and the inner side surface of the sealing ring (11) is tightly attached to the bottom end surface of the inclined ring groove (15).
4. An externally sealed floating oil seal for a sprocket assembly according to claim 1 wherein: the chain wheel is characterized in that a bearing (5) is arranged between the chain wheel shaft (1) and the bearing seat (3), the chain wheel shaft (2) is rotationally connected in the bearing seat (3) through the bearing (5), one end, far away from the chain wheel (2), of the bearing seat (3) is provided with an end cover (4), and the outer sealing type floating oil seal (7) is arranged on one side, close to the end cover (4), of the bearing (3).
5. An externally sealed floating oil seal for a sprocket assembly according to claim 4 wherein: the inner floating seal seat (8) is arranged on one side, close to the end cover (4), of the bearing (5), the two groups of floating seal rings (10) and the sealing ring (11) are arranged on one side, far away from the bearing (5), of the inner floating seal seat (8), a first annular groove (16) which is concave inwards is formed in the end face, far away from the bearing (5), of the inner floating seal seat (8), and the group of sealing rings (11) and the floating seal rings (10) corresponding to the inner floating seal seat (8) are arranged in the first annular groove (16).
6. An externally sealed floating oil seal for a sprocket assembly according to claim 5 wherein: the outer side inner wall surface of the first annular groove (16) is of an annular inclined surface structure with a narrow outer width, and the outer side surface of a sealing ring (11) arranged in the inner floating seal seat (8) is tightly attached to the outer side inner wall surface of the first annular groove (16).
7. An externally sealed floating oil seal for a sprocket assembly according to claim 6 wherein: the outer floating seal seat (9) is sleeved on the outer side of the inner floating seal seat (8) and a group of sealing rings (11) and floating seal rings (10) corresponding to the inner floating seal seat, two adjacent annular grooves are formed in the inner side surface of the outer floating seal seat (9), namely, a second annular groove (19) and a third annular groove (20), the inner wall surface of the second annular groove (19) is of an equal-thickness cylindrical surface structure, the inner diameter of the second annular groove is slightly larger than the diameter of the outer side surface of the inner floating seal seat (8), and the inner floating seal seat (8) is arranged in the second annular groove (19).
8. An externally sealed floating oil seal for a sprocket assembly according to claim 7 wherein: the inner wall surface of the third annular groove (20) is of an annular inclined surface structure, and the diameter of one end, close to the bearing (5), of the third annular groove is larger than that of one end, far away from the bearing (5); the outer side surface of the sealing ring (11) corresponding to the outer floating seal seat (9) is tightly attached to the inner wall surface of the third annular groove (20).
9. An externally sealed floating oil seal for a sprocket assembly according to claim 4 wherein: the outer side surface of the outer floating seal seat (9) is tightly contacted with the inner wall surface of the bearing seat (3), a circular ring-shaped bulge (17) is arranged at the edge of one end of the outer side surface, far away from the bearing (5), a bolt counter bore (18) is uniformly arranged on the circular bulge (17) along the circular ring, the annular bulge (28) is arranged on a step on the inner side surface of the bearing seat (3), and the outer floating seal seat passes through the bolt counter bore (18) on the circular bulge (17) through a fixing bolt to be fixedly connected with the bearing seat (3).
CN202111317443.XA 2021-11-09 2021-11-09 External sealing type floating oil seal for chain wheel assembly Pending CN116104946A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202111317443.XA CN116104946A (en) 2021-11-09 2021-11-09 External sealing type floating oil seal for chain wheel assembly

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202111317443.XA CN116104946A (en) 2021-11-09 2021-11-09 External sealing type floating oil seal for chain wheel assembly

Publications (1)

Publication Number Publication Date
CN116104946A true CN116104946A (en) 2023-05-12

Family

ID=86265971

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202111317443.XA Pending CN116104946A (en) 2021-11-09 2021-11-09 External sealing type floating oil seal for chain wheel assembly

Country Status (1)

Country Link
CN (1) CN116104946A (en)

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