Combined oil seal with precise assembly structure

Abstract

The utility model discloses a combined type oil seal with an accurate assembly structure, which relates to the technical field of oil seals and comprises a semi-ring iron piece A, a semi-ring iron piece B and a sealing lip, the semi-ring iron piece A and the semi-ring iron piece B are both arranged on the outer side of the sealing lip and are symmetrically arranged relative to the center of the sealing lip, and the semi-ring iron piece A and the semi-ring iron piece B are completely consistent in structure. An annular mounting groove is formed in the outer side of the sealing lip, the semi-ring iron piece A and the semi-ring iron piece B are both arranged in the annular mounting groove, and a connecting assembly facilitating accurate assembling and connecting of the semi-ring iron piece A and the semi-ring iron piece B is arranged between the semi-ring iron piece A and the semi-ring iron piece B. Through the arrangement of the connecting assembly, connection of the fixing clamping block of the semi-ring iron piece A is more accurate, the semi-ring iron piece A and the semi-ring iron piece B form a whole through the fastening bolt, the rigidity of the device is improved, the oil seal is not prone to deformation, and the sealing effect of the device is improved and reduced through the sealing lip made of rubber.

Description

Technical Field

[0001] The utility model relates to the technical field of oil seals, in particular to a combined oil seal with a precise assembly structure. Background Art

[0002] In the modern industrial field, especially in mechanical engineering, automobile manufacturing, aerospace and other industries, oil seals are a key sealing component, and their performance and quality directly affect the working efficiency, service life and operation safety of mechanical equipment. Although the traditional oil seal design meets the basic sealing needs to a certain extent, it often has certain limitations when facing the high precision and high reliability requirements under complex working conditions.

[0003] Application number: CN202122651116.X discloses a combined oil seal, which effectively solves the technical problems of the existing combined oil seals, such as complex structure, low overall strength and shortened overall service life of the oil seal.

[0004] However, the above device does not take the installation of the oil seal into consideration when used, and is inconvenient to install and cannot be assembled accurately. Therefore, it is necessary to propose a combined oil seal with a precise assembly structure. Utility Model Content

[0005] The utility model aims to solve the shortcomings in the prior art and proposes a combined oil seal with a precise assembly structure.

[0006] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0007] A combined oil seal with a precise assembly structure comprises a semi-ring iron piece A, a semi-ring iron piece B and a sealing lip, wherein the semi-ring iron piece A and the semi-ring iron piece B are both arranged on the outside of the sealing lip, and the semi-ring iron piece A and the semi-ring iron piece B are symmetrically arranged around the center of the sealing lip, and the structures of the semi-ring iron piece A and the semi-ring iron piece B are completely consistent, an annular mounting groove is arranged on the outside of the sealing lip, and the semi-ring iron piece A and the semi-ring iron piece B are both arranged in the annular mounting groove, and a connecting component is arranged between the semi-ring iron piece A and the semi-ring iron piece B for facilitating precise assembly and connection of the semi-ring iron piece A and the semi-ring iron piece B.

[0008] Preferably, the connecting assembly includes a fixed card block fixedly installed on one end of the semi-ring iron piece A and the semi-ring iron piece B, and the other ends of the semi-ring iron piece A and the semi-ring iron piece B are each provided with a connecting card slot, the fixed card block corresponds to the connecting card slot, and the fixed card block of the semi-ring iron piece A is arranged in the connecting card slot of the semi-ring iron piece B, and the fixed card block of the semi-ring iron piece B is arranged in the connecting card slot of the semi-ring iron piece A;

[0009] It is used to facilitate the precise assembly between the half-ring iron piece A and the half-ring iron piece B. The half-ring iron piece A and the half-ring iron piece B are arranged in the annular installation groove, so that the fixed block of the half-ring iron piece A is arranged in the connecting groove of the half-ring iron piece B, and the fixed block of the half-ring iron piece B is arranged in the connecting groove of the half-ring iron piece A, so that the connection of the fixed block of the half-ring iron piece A is more precise.

[0010] Preferably, the outer wall of the half-ring iron part A and the half-ring iron part B near one end of the connecting slot is provided with a bolt groove, a bolt through hole is provided in the bolt groove, the bolt through hole connects the bolt groove and the connecting slot, and a bolt hole is provided on the inner wall of the connecting slot; the bolt groove, the bolt through hole and the bolt hole are used for connecting with the fixed block bolts.

[0011] The fixing block is provided with a bolt through hole, and the inner diameters of the bolt through hole, the bolt through hole and the bolt hole are consistent; the bolt through hole and the bolt hole are connected with bolts.

[0012] A fastening bolt is arranged in the bolt groove, and the screw rod of the fastening bolt is threadedly installed in the bolt through hole, the bolt penetration hole and the bolt hole in sequence;

[0013] It is used to fasten the fixed blocks of the semi-ring iron piece A. The screw of the fastening bolt is threadedly installed in the bolt through hole, the bolt penetration hole and the bolt hole in sequence. The semi-ring iron piece A and the semi-ring iron piece B are formed into a whole by the fastening bolt, which increases the rigidity of the device and prevents the oil seal from being easily deformed.

[0014] Preferably, the inner diameters of the half-ring iron piece A and the half-ring iron piece B are consistent with the outer diameter of the annular mounting groove, the half-ring iron piece A and the half-ring iron piece B are made of carbon steel, and the sealing lip is made of rubber;

[0015] The half-ring iron piece A and the half-ring iron piece B form the basic framework of the device, increasing the rigidity of the device so that the oil seal will not be easily deformed. The sealing lip made of rubber material has elastic properties and has a very good sealing effect on the shaft.

[0016] The utility model has the following beneficial effects:

[0017] By setting a connecting component, the semi-ring iron piece A and the semi-ring iron piece B are set in the annular installation groove, so that the fixed block of the semi-ring iron piece A is set in the connecting groove of the semi-ring iron piece B, and the fixed block of the semi-ring iron piece B is set in the connecting groove of the semi-ring iron piece A, so that the connection of the fixed block of the semi-ring iron piece A is more precise, and the screw of the fastening bolt is threadedly installed in the bolt through hole, the bolt through hole and the bolt hole in sequence. The semi-ring iron piece A and the semi-ring iron piece B are formed into a whole by the fastening bolt, which increases the rigidity of the device so that the oil seal will not be easily deformed. The sealing lip made of rubber material has elastic properties and has a very good sealing effect on the shaft. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic diagram of the external structure of a combined oil seal with a precise assembly structure proposed by the utility model;

[0019] Figure 2 This is a schematic diagram of the separation structure of a combined oil seal with a precise assembly structure proposed by the utility model;

[0020] Figure 3 This is a schematic diagram of the structure of the connection assembly of the utility model;

[0021] Figure 4 It is a schematic diagram of the cross-sectional structure of the semi-ring iron piece B of the utility model.

[0022] In the figure: 1. semi-ring iron piece A; 2. semi-ring iron piece B; 3. sealing lip; 31. annular mounting groove; 4. connecting assembly; 41. fixing block; 411. bolt through hole; 42. connecting slot; 43. bolt slot; 44. bolt through hole; 45. bolt hole; 46. fastening bolt. DETAILED DESCRIPTION

[0023] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0024] In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside", "outside", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as a limitation on the present invention.

[0025] Reference Figure 1-4 A combined oil seal with a precise assembly structure comprises a semi-ring iron piece A1, a semi-ring iron piece B2 and a sealing lip 3. The semi-ring iron piece A1 and the semi-ring iron piece B2 are both arranged on the outside of the sealing lip 3. The semi-ring iron piece A1 and the semi-ring iron piece B2 are symmetrically arranged with the center of the sealing lip 3. The structures of the semi-ring iron piece A1 and the semi-ring iron piece B2 are completely consistent. An annular mounting groove 31 is arranged on the outside of the sealing lip 3. The semi-ring iron piece A1 and the semi-ring iron piece B2 are both arranged in the annular mounting groove 31. A connecting component 4 is arranged between the semi-ring iron piece A1 and the semi-ring iron piece B2 for facilitating the precise assembly and connection of the semi-ring iron piece A1 and the semi-ring iron piece B2.

[0026] The connecting component 4 includes a fixed block 41 fixedly installed on one end of the semi-ring iron piece A1 and the semi-ring iron piece B2. The other ends of the semi-ring iron piece A1 and the semi-ring iron piece B2 are both provided with a connecting slot 42. The fixed block 41 corresponds to the connecting slot 42, and the fixed block 41 of the semi-ring iron piece A1 is arranged in the connecting slot 42 of the semi-ring iron piece B2, and the fixed block 41 of the semi-ring iron piece B2 is arranged in the connecting slot 42 of the semi-ring iron piece A1.

[0027] A bolt slot 43 is formed on the outer wall of the half-ring iron piece A1 and the half-ring iron piece B2 near one end of the connecting slot 42 , a bolt through hole 44 is formed in the bolt slot 43 , the bolt through hole 44 connects the bolt slot 43 with the connecting slot 42 , and a bolt hole 45 is formed on the inner wall of the connecting slot 42 .

[0028] The fixing block 41 is provided with a bolt through hole 411 , and the inner diameters of the bolt through hole 411 , the bolt through hole 44 and the bolt hole 45 are consistent.

[0029] A fastening bolt 46 is disposed in the bolt groove 43 , and a screw rod of the fastening bolt 46 is threadedly installed in the bolt through hole 44 , the bolt through hole 411 and the bolt hole 45 in sequence.

[0030] The inner diameters of the half-ring iron piece A1 and the half-ring iron piece B2 are consistent with the outer diameter of the annular mounting groove 31 . The half-ring iron piece A1 and the half-ring iron piece B2 are made of carbon steel, and the sealing lip 3 is made of rubber.

[0031] In the utility model, the semi-ring iron piece A1 and the semi-ring iron piece B2 are arranged in the annular installation groove 31, so that the fixed block 41 of the semi-ring iron piece A1 is arranged in the connecting groove 42 of the semi-ring iron piece B2, and the fixed block 41 of the semi-ring iron piece B2 is arranged in the connecting groove 42 of the semi-ring iron piece A1, so that the connection of the fixed block 41 of the semi-ring iron piece A1 is more precise, and the screw of the fastening bolt 46 is threadedly installed in the bolt through hole 44, the bolt through hole 411 and the bolt hole 45 in sequence. The semi-ring iron piece A1 and the semi-ring iron piece B2 are formed into a whole by the fastening bolt 46, which increases the rigidity of the device so that the oil seal will not be easily deformed, and the sealing lip 3 made of rubber material has elastic properties and has a very good sealing effect on the shaft.

[0032] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A combined oil seal with a precise assembly structure, comprising a half-ring iron piece A (1), a half-ring iron piece B (2) and a sealing lip (3), characterized in that: The half-ring iron piece A (1) and the half-ring iron piece B (2) are both arranged on the outside of the sealing lip (3); the half-ring iron piece A (1) and the half-ring iron piece B (2) are symmetrically arranged with respect to the center of the sealing lip (3); the half-ring iron piece A (1) and the half-ring iron piece B (2) have completely identical structures; an annular mounting groove (31) is arranged on the outside of the sealing lip (3); the half-ring iron piece A (1) and the half-ring iron piece B (2) are both arranged in the annular mounting groove (31); and a connecting component (4) is arranged between the half-ring iron piece A (1) and the half-ring iron piece B (2) for facilitating accurate assembly and connection of the half-ring iron piece A (1) and the half-ring iron piece B (2).

2. The combined oil seal with a precise assembly structure according to claim 1, characterized in that: The connecting assembly (4) comprises a fixed clamping block (41) fixedly mounted on one end of the semi-ring iron piece A (1) and the semi-ring iron piece B (2); the other ends of the semi-ring iron piece A (1) and the semi-ring iron piece B (2) are both provided with a connecting clamping slot (42); the fixed clamping block (41) corresponds to the connecting clamping slot (42); the fixed clamping block (41) of the semi-ring iron piece A (1) is arranged in the connecting clamping slot (42) of the semi-ring iron piece B (2); and the fixed clamping block (41) of the semi-ring iron piece B (2) is arranged in the connecting clamping slot (42) of the semi-ring iron piece A (1).

3. The combined oil seal with a precise assembly structure according to claim 2, characterized in that: The outer side walls of the half-ring iron piece A (1) and the half-ring iron piece B (2) close to one end of the connecting slot (42) are provided with a bolt slot (43), a bolt through hole (44) is provided in the bolt slot (43), the bolt through hole (44) connects the bolt slot (43) and the connecting slot (42), and the inner side wall of the connecting slot (42) is provided with a bolt hole (45), and the bolt slot (43), the bolt through hole (44) and the bolt hole (45) are used for bolt connection with the fixing block (41).

4. The combined oil seal with a precise assembly structure according to claim 3, characterized in that: The fixing block (41) is provided with a bolt through hole (411), and the bolt through hole (411), the bolt through hole (44) and the bolt hole (45) have the same inner diameter, and are connected with the bolt through hole (44) and the bolt hole (45) by bolts.

5. The combined oil seal with a precise assembly structure according to claim 4, characterized in that: A fastening bolt (46) is arranged in the bolt groove (43), and the screw rod of the fastening bolt (46) is threadedly installed in the bolt through hole (44), the bolt through hole (411) and the bolt hole (45) in sequence.

6. The combined oil seal with a precise assembly structure according to claim 1, characterized in that: The inner diameters of the semi-ring iron piece A (1) and the semi-ring iron piece B (2) are consistent with the outer diameter of the annular mounting groove (31); the semi-ring iron piece A (1) and the semi-ring iron piece B (2) are made of carbon steel, and the sealing lip (3) is made of rubber.

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