A rotating shaft oil seal / o-ring mounting protection structure and protection film

Abstract

The utility model discloses a kind of oil seal / O ring mounting protection structure and protective film of rotating shaft, including rotating shaft and protective film wrapped on rotating shaft, the inner surface of the corresponding protective film and rotating shaft is rough surface, and the surface of rotating shaft and rough surface contact is coated with oil liquid;The outer surface of the protective film is smooth surface.The utility model is easy to install and dismount, when worker operates, it is not necessary to consider whether there is burr, sharp angle etc. on the shaft, microscopic factor to sealing element damage, improve the installation quality of oil seal and O ring etc.

Description

Technical Field

[0001] This utility model relates to the field of machinery, and in particular to an oil seal / O-ring mounting protection structure and protective film for a rotating shaft. Background Technology

[0002] When mechanically installing a shaft, sealing structures such as oil seals and O-rings are usually installed to prevent lubricant leakage. However, before installation, the shaft surface usually needs to be polished smooth to prevent minor damage to the seals caused by tiny burrs or sharp corners, which could impair sealing performance and reduce service life. Utility Model Content

[0003] To solve the above-mentioned technical problems, this utility model proposes an oil seal / O-ring installation protection structure and protective film for a rotating shaft.

[0004] The objective of this utility model is achieved through the following technical solution: An oil seal / O-ring mounting protection structure for a rotating shaft includes a rotating shaft 2 and a protective film 1 wrapped around the rotating shaft. The inner surface of the protective film 1 corresponding to the rotating shaft 2 is a rough surface 101, and the surface of the rotating shaft 2 in contact with the rough surface 101 is coated with an oil layer (lubricating oil or other oil, mainly for adhesion). The outer surface of the protective film 1 is a smooth surface 102, and the smooth surface 102 is coated with lubricating oil.

[0005] In a further improvement, the roughness of the rough surface 101 is ≥1µm, and the roughness of the smooth surface 102 is ≤0.1µm.

[0006] As a further improvement, the protective film 1 is made of a plastic film.

[0007] As a further improvement, the protective film 1 has a thickness of 0.06-0.07 mm and a tensile strength ≥100 MPa.

[0008] A protective film 1 for the installation and protection of an oil seal / O-ring on a rotating shaft, wherein one side of the protective film 1 is a rough surface 101 and the other side is a smooth surface 102; the thickness of the protective film 1 is 0.06-0.07mm, the roughness of the rough surface 101 is ≥1um, and the roughness of the smooth surface 102 is ≤0.1um.

[0009] The beneficial effects of this utility model are as follows: Easy to install and disassemble, workers do not need to consider microscopic factors such as burrs or sharp corners on the shaft that could damage the seals, thus improving the installation quality of shaft seals such as oil seals and O-rings. Attached Figure Description

[0010] The present invention will be further described with reference to the accompanying drawings, but the content of the drawings does not constitute any limitation on the present invention.

[0011] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 A schematic diagram of the rough surface structure of the protective film; Figure 3 This is a schematic diagram of the smooth surface structure of the protective film. Detailed Implementation

[0012] To make the purpose, technical solution and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and examples.

[0013] Example 1 like Figure 1-3 The illustrated oil seal / O-ring mounting protection structure for a rotating shaft includes a rotating shaft 2 and a protective film 1 wrapped around the rotating shaft. The inner surface of the protective film 1 corresponding to the rotating shaft 2 is a rough surface 101, and the surface of the rotating shaft 2 in contact with the rough surface 101 is coated with oil. The outer surface of the protective film 1 is a smooth surface 102.

[0014] When using the protective film 1, lubricating oil is dripped onto the rough surface 101 and then wrapped around the shaft 2.

[0015] 102 drops of lubricating oil are applied to the smooth surface to guide the oil seal and O-ring.

[0016] After the oil seal and O-ring are installed in their fixed positions, simply pull out the protective film 1.

[0017] Design principles: a) The protective film has two sides, A and B, with different properties; b) Side A, which is rough and wraps around the shaft, is called the inner side. Due to its roughness, side A is oleophilic and facilitates adsorption; side B, on the other hand, is the outer side, which is smooth; c) The protective film should be thin (approximately 0.06mm) and meet certain tensile strength requirements (≥100Mpa). In terms of structural design, the protective film is: 1. Simple and quick to remove after use; 2. Reusable.

[0018] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and are not intended to limit the scope of protection of this utility model. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solution of this utility model without departing from the essence and scope of the technical solution of this utility model.

Claims

1. A protective structure for mounting an oil seal / O-ring on a rotating shaft, characterized in that, It includes a rotating shaft (2) and a protective film (1) wrapped around the rotating shaft. The inner surface of the protective film (1) corresponding to the rotating shaft (2) is a rough surface (101), and the surface of the rotating shaft (2) in contact with the rough surface (101) is coated with an oil layer. The outer surface of the protective film (1) is a smooth surface (102), and the smooth surface (102) is coated with lubricating oil.

2. The oil seal / O-ring mounting and protection structure for the rotating shaft as described in claim 1, characterized in that, The roughness of the rough surface (101) is ≥1 μm, and the roughness of the smooth surface (102) is ≤0.1 μm.

3. The oil seal / O-ring mounting and protection structure for the rotating shaft as described in claim 1, characterized in that, The protective film (1) is made of a plastic film.

4. The oil seal / O-ring mounting and protection structure for the rotating shaft as described in claim 1, characterized in that, The protective film (1) has a thickness of 0.06-0.07 mm and a tensile strength ≥100 MPa.

5. A protective film (1) for the installation and protection of oil seals / O-rings on a rotating shaft, characterized in that, The protective film (1) has a rough surface (101) on one side and a smooth surface (102) on the other side; the thickness of the protective film (1) is 0.06-0.07 mm, the roughness of the rough surface (101) is ≥1 μm, and the roughness of the smooth surface (102) is ≤0.1 μm.

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