Roll end face flange water seal capable of being quickly disassembled and assembled

Abstract

The utility model discloses a roller end face flange water seal capable of being quickly disassembled and assembled, which is an annular rubber sealing body with an approximately U-shaped section, a flange plate is arranged on the right side of the annular rubber sealing body, a sealing limb is arranged on the left side of the annular rubber sealing body, and a connecting waist part is arranged on the inner side of the middle of the annular rubber sealing body. A plurality of mounting holes for assembling screws are uniformly distributed along the circumference of the flange plate at intervals, each mounting hole penetrates through the flange framework, a sealing lip is arranged at the tail end of the sealing limb, each mounting hole comprises a through hole and a stepped counter bore which are communicated with each other, the diameter of each through hole is equal to that of a large hole of the stepped counter bore, and the diameter of each stepped counter bore is equal to that of a small hole of the flange plate. And a small hole of the stepped counter bore is a through hole. The flange water seal can be quickly disassembled and assembled, the assembling efficiency is improved, and meanwhile the labor intensity of workers can be reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to a plate strip rolling mill oil film bearing waterproof sealing device, in particular to a roll end face flange water seal which can be quickly disassembled. BACKGROUND

[0002] The ambient temperature of the steel plate hot rolling line is relatively high, so a large amount of cooling water is needed to cool the rolling mill roll during the rolling of the steel plate, and the cooling water has multiple effects of reducing the surface temperature of the roll, removing the iron oxide scale on the surface of the rolled material, controlling the temperature of the rolled material and cooling the roll bearing, therefore, the cooling water should have sufficient supply and pressure, which is very unfavorable for the oil film bearing sealing device arranged between the bearing seat and the roll end face, therefore, the oil film bearing sealing device should be able to effectively prevent a large amount of cooling water and iron oxide scale and other impurities from entering the inside of the oil film bearing, so as to protect the oil film bearing from working normally under good lubrication conditions.

[0003] Most of the outermost water sealing lines of the existing oil film bearing sealing device adopt the following structure, see Figure 1 A sealing cover 2' is installed on the bearing seat 1', and a flange water seal 4' is installed on the sealing cover through screws 3', the flange plane of the flange water seal is attached to the sealing cover to form a static sealing line, and the rubber lip of the flange water seal is in contact with the end face of the roll 5' to form a dynamic sealing line, when the roll rotates, the flange water seal always maintains the lip in contact with the roll end face and slides relatively by the rubber elastic force of the waist, so as to prevent a large amount of cooling water and iron oxide scale and other impurities from entering the inside of the oil film bearing sealing assembly. The disadvantages of this sealing waterproof structure are as follows: first, the flange water seal is installed on the sealing cover through circumferentially distributed screws, all the screws need to be removed every time when disassembling, and it is difficult to align individual hole positions during installation, and in addition, the flange water seal is relatively heavy, which increases the work burden of the workers and the installation efficiency is very low. Second, the flange water seal realizes static sealing by the rubber layer of the flange plane being attached to the installation surface of the sealing cover under the pre-tightening force of the installation screws, but due to the relatively large diameter of the flange, the flatness is not high, especially under the local pressure of the installation screws, the static sealing of the positions without screws may fail. Therefore, waterproof sealing glue needs to be applied on the sealing surface, which increases the work load of installation, disassembly and cleaning. CONTENT OF THE UTILITY MODEL

[0004] The technical problem to be solved by the utility model is to provide a roll end face flange water seal which can be quickly disassembled, the flange water seal of the utility model can be quickly disassembled, the assembly efficiency is improved, and the labor intensity of the workers can be reduced.

[0005] To solve the above technical problems, the utility model discloses a kind of roll end face flange water seals of quick disassembly and assembly, for the annular rubber sealing body of section approximate U shape, the right side of annular rubber sealing body is flange, left side is sealing limb, middle inside is connecting waist, the flange skeleton of metal material is vulcanized in the inside of flange, a plurality of mounting holes for assembling screw are uniformly distributed along the circumference of the flange, every mounting hole is passed through the flange skeleton, the end of the sealing limb has sealing lip, the mounting hole includes communicating through-hole and stepped hole, the diameter of through-hole is equal to the diameter of large hole of stepped hole, the small hole of stepped hole is through-hole.

[0006] When the roll end face flange water seal of quick disassembly and assembly with the above structure is installed on the sealing cover in oil film bearing sealing device, screw can be installed on the sealing cover first, screw is screwed into a small length, then the through-hole of the utility model flange water seal is aligned with the nail cap of screw on the sealing cover, after passing, flange water seal is rotated clockwise, so that the screw rod of screw enters the small hole position of stepped hole, then each screw is respectively screwed tightly;When flange water seal is disassembled, screw does not need to be removed, and the reverse process of installation process can be taken. When the flange water seal with the above structure is installed and disassembled, the installation screw does not need to be removed, and the operation worker can be reduced from two to one, so that the assembly efficiency is greatly improved, and the labor intensity of worker is reduced.

[0007] As the improvement of the utility model, the right side of the flange disc close to the inner diameter of the flange disc is connected with annular inner sealing lip, and the outer diameter of the flange disc is connected with annular outer sealing lip.

[0008] After adopting the above technical features, the sealing cover matched with the utility model is correspondingly provided with outer diameter bevel at the outer diameter of flange water seal mounting surface and inner diameter bevel at the inner diameter, the inner sealing lip in the utility model contacts with the inner diameter bevel to form a static sealing line, the outer sealing lip contacts with the outer diameter bevel to form another static sealing line, the pressure between sealing lip and bevel gradually increases during the locking process of screw, so that the static sealing reliability during installation with sealing cover can be effectively guaranteed, and better sealing effect can be obtained. BRIEF DESCRIPTION OF DRAWINGS

[0009] The utility model will be further explained in detail in combination with drawings.

[0010] Figure 1 It is the outermost waterproof structure diagram of oil film bearing sealing device in prior art.

[0011] Figure 2 It is the sectional view of the utility model roll end face flange water seal of quick disassembly and assembly.

[0012] Figure 3The utility model relates to a partial structure of a flange plate of a roll end face flange water seal which can be quickly disassembled, and shows the structure of an installation hole thereon.

[0013] Figure 4 The utility model discloses an installation structure diagram for oil film bearing sealing.

[0014] Figure 5 The utility model discloses a flange water seal of roll end face which can be quickly disassembled. Figure 4 The utility model discloses a sectional view of the sealing cover. Specific implementation

[0015] Referring to Figure 1 , Figure 1 The utility model discloses a flange water seal of roll end face which can be quickly disassembled.

[0016] Referring to Figure 2 , Figure 3 The utility model discloses a flange water seal of roll end face which can be quickly disassembled, is annular rubber sealing body that the section is approximate U shape, the right side of annular rubber sealing body is flange plate 10, the left side is sealing limb 20, and the inside in the middle is connected waist part 30, and the inside of flange plate is vulcanized with the flange framework 11 of metal material, a plurality of installation holes 12 for assembling screw are uniformly distributed with the interval along the circumference of the flange plate, and each installation hole passes through the flange framework, and the end of sealing limb has sealing lip 21, and the installation hole 12 includes the through hole 13 and stepped hole 14 of intercommunication, and the diameter of through hole is equal with the diameter of big hole 141 of stepped hole, and the small hole 142 of stepped hole is through hole. The right side of flange plate 10 close to the inner diameter of the flange plate is connected with annular inner sealing lip 15, and the outer diameter of flange plate 10 is connected with annular outer sealing lip 16.

[0017] Finally referring to Figure 4 , Figure 5 The utility model discloses a flange water seal of roll end face which can be quickly disassembled, is annular rubber sealing body that the section is approximate U shape, the right side of annular rubber sealing body is flange plate 10, the left side is sealing limb 20, and the inside in the middle is connected waist part 30, and the inside of flange plate is vulcanized with the flange framework 11 of metal material, a plurality of installation holes 12 for assembling screw are uniformly distributed with the interval along the circumference of the flange plate, and each installation hole passes through the flange framework, and the end of sealing limb has sealing lip 21, and the installation hole 12 includes the through hole 13 and stepped hole 14 of intercommunication, and the diameter of through hole is equal with the diameter of big hole 141 of stepped hole, and the small hole 142 of stepped hole is through hole. The right side of flange plate 10 close to the inner diameter of the flange plate is connected with annular inner sealing lip 15, and the outer diameter of flange plate 10 is connected with annular outer sealing lip 16.

[0018] It can be understood that the above specific description of the utility model is only used for illustrating the utility model and is not limited to the technical scheme described in the utility model embodiment, and any modification or equivalent replacement to the utility model to achieve the same technical effect is within the protection scope of the utility model.

Claims

1. A quick-assembly and disassembly water seal for a roll end face flange, comprising an annular rubber sealing body with an approximately U-shaped cross-section, wherein the right side of the annular rubber sealing body is a flange (10), the left side is a sealing limb (20), and the inner middle side is a connecting waist (30). A metal flange skeleton (11) is vulcanized inside the flange. Multiple mounting holes (12) for mounting screws are evenly distributed along the circumference of the flange, each mounting hole passing through the flange skeleton. The end of the sealing limb has a sealing lip (21). The seal is characterized by: The mounting hole (12) includes a through hole (13) and a stepped countersunk hole (14) that are connected. The diameter of the through hole is equal to the diameter of the large hole (141) of the stepped countersunk hole, and the small hole (142) of the stepped countersunk hole is a through hole.

2. The quick-release and detachable roll end face flange water seal as described in claim 1, characterized in that: An annular inner sealing lip (15) is connected to the right side of the flange (10) near the inner diameter, and an annular outer sealing lip (16) is connected to the outer diameter of the flange (10).

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