Magnetic flux density integrated multifunctional oil seal

Abstract

The utility model discloses a magnetic flux density integrated multifunctional oil seal which comprises a framework and a rubber body connected to the framework, and is characterized in that the framework comprises a first L-shaped framework and a second L-shaped framework which are formed in an integrated machining mode, the size of the second L-shaped framework is smaller than that of the first L-shaped framework, and the rubber body is connected to the rubber body. The rubber body comprises a magnetic rubber body and a nitrile rubber body, the magnetic rubber body is connected to the side face of one end of the first L-shaped framework, the nitrile rubber body is connected to the end of one end of the second L-shaped framework, and the nitrile rubber body comprises a connecting part, a difunctional lip part and a muddy water lip part which are sequentially arranged.

Description

Technical Field

[0001] The utility model belongs to the technical field of oil seals, and relates to a magnetic density integrated multi-functional oil seal. Background Art

[0002] An oil seal is a common name for a general seal, simply speaking, it is the seal of lubricating oil; it is a mechanical component used to seal grease, which isolates the components that need lubrication in the transmission components from the output components, so as to prevent the lubricating oil from leaking.

[0003] At present, the commonly used sealing structure inside the automotive wheel hub unit is generally a magnetic combination structure, that is, a structure of a sealing ring plus a magnetic ring, and the cost is relatively high. Therefore, it is necessary to design a magnetic density integrated multi-functional oil seal to solve the above problems. Summary of the Invention

[0004] The purpose of the utility model is to provide a magnetic density integrated multi-functional oil seal for the existing technologies with the above problems.

[0005] To achieve the above purpose, the technical solution of the utility model is: a magnetic density integrated multi-functional oil seal, including a skeleton and a rubber body connected to the skeleton. It is characterized in that the skeleton includes a first L-shaped skeleton and a second L-shaped skeleton formed by an integral processing method, the size of the second L-shaped skeleton is smaller than that of the first L-shaped skeleton, the rubber body includes a magnetic rubber body and a nitrile rubber body, the magnetic rubber body is connected to the side of one end of the first L-shaped skeleton, the nitrile rubber body is connected to the end of one end of the second L-shaped skeleton, and the nitrile rubber body includes a connecting part, a dual-functional lip and a muddy water lip arranged in sequence.

[0006] The muddy water lip is arranged obliquely.

[0007] The dual-functional lip has a long inclined surface and a short inclined surface, the long inclined surface is close to the connecting part, and the short inclined surface is close to the muddy water lip.

[0008] There is a groove between the connecting part and the muddy water lip, and a spring is installed in the groove.

[0009] By adopting the above technical solution, the beneficial effect of the utility model is:

[0010] The utility model can not only effectively seal muddy water but also output a magnetic induction signal, and can be mainly applied to the inner bearing of the automotive wheel hub unit. Brief Description of the Drawings

[0011] Figure 1 It is a structural schematic diagram of the utility model.

[0012] In the figure, 1 is the skeleton; 1a is the first L-shaped skeleton; 1b is the second L-shaped skeleton; 2 is the magnetic rubber body; 3 is the nitrile rubber body; 3a is the connecting part; 3b is the dual-functional lip; 3c is the muddy water lip; 3d is the spring; 3e is the groove. Detailed implementation mode

[0013] In order to further explain the technical solution of the present invention, the present invention will be elaborated in detail below through specific embodiments.

[0014] As Figure 1 shown, this magnetic density integrated multi-functional oil seal includes a skeleton 1 and a rubber body connected to the skeleton 1. The skeleton 1 includes a first L-shaped skeleton 1a and a second L-shaped skeleton 1b formed by an integral processing method, that is, in this actual case, the entire skeleton 1 is formed by an existing integral processing method; the size of the second L-shaped skeleton 1b is smaller than that of the first L-shaped skeleton 1a. The rubber body includes a magnetic rubber body 2 and a nitrile rubber body 3. The magnetic rubber body 2 is connected to the side of one end of the first L-shaped skeleton 1a. After the magnetic rubber body 2 is magnetized, it carries a magnetic induction signal, which is an existing technology; the nitrile rubber body 3 is connected to the end of one end of the second L-shaped skeleton 1b. The nitrile rubber body 3 includes a connecting part 3a, a dual-functional lip 3b and a muddy water lip 3c arranged in sequence. The dual-functional lip 3b is both an oil lip and a muddy water lip, with an interference fit to prevent muddy water from invading and oil from overflowing, so that the nitrile rubber body 3 has an oil lip structure and two muddy water lip structures.

[0015] The muddy water lip 3c is arranged obliquely.

[0016] The dual-functional lip 3b has a long inclined surface and a short inclined surface. The long inclined surface is close to the connecting part 3a, and the short inclined surface is close to the muddy water lip 3c.

[0017] There is a groove 3e between the connecting part 3a and the muddy water lip 3c. A spring 3d is installed in the groove 3e to enhance the sealing performance of the inner diameter lip and provide interference compensation after lip wear.

[0018] The present invention adopts an integrated structure, which not only meets the performance of blocking muddy water but also takes into account the magnetic performance, effectively reducing costs, improving product performance and extending service life.

[0019] The above components are all common standard parts or parts known to those skilled in the art. Their structures and principles can all be known by those skilled in the art through technical manuals or obtained through conventional experimental methods.

[0020] The above embodiments and drawings do not limit the product form and style of the present invention. Any appropriate changes or modifications made by those of ordinary skill in the art shall be regarded as not departing from the patent scope of the present invention.

Claims

1. The magnetic flux density integrated multifunctional oil seal includes a skeleton (1) and a rubber body connected to the skeleton (1), and is characterized in that, The skeleton (1) includes a first L-shaped skeleton (1a) and a second L-shaped skeleton (1b) formed by integral processing. The size of the second L-shaped skeleton (1b) is smaller than that of the first L-shaped skeleton (1a). The rubber body includes a magnetic rubber body (2) and a nitrile rubber body (3). The magnetic rubber body (2) is connected to the side of one end of the first L-shaped skeleton (1a), and the nitrile rubber body (3) is connected to the end of one end of the second L-shaped skeleton (1b). The nitrile rubber body (3) includes a connecting portion (3a), a dual-functional lip (3b), and a muddy water lip (3c) arranged in sequence.

2. The magnetic flux density integrated multifunctional oil seal according to claim 1, wherein The muddy water lip (3c) is arranged obliquely.

3. The magnetic flux density integrated multi-functional oil seal according to claim 1, wherein The dual-functional lip (3b) has a long inclined surface and a short inclined surface. The long inclined surface is close to the connecting portion (3a), and the short inclined surface is close to the muddy water lip (3c).

4. The magnetic flux density integrated multi-functional oil seal according to claim 2, characterized in that, There is a groove (3e) between the connecting portion (3a) and the muddy water lip (3c), and a spring (3d) is installed in the groove (3e).

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