Novel floating oil seal with high wear-resistant structure

Abstract

The utility model relates to the technical field of floating oil seals, in particular to a novel floating oil seal with a high abrasion-resistant structure, which comprises a floating seat, an O-shaped ring is arranged on the inner side of the bottom end of the floating seat, a floating seal ring is arranged on the outer side of the O-shaped ring, the floating seat comprises a supporting ring, an outer ring and a positioning ring fixed between the supporting ring and the outer ring, and a circle of oil channel is formed between the supporting ring and the outer ring. An oil hole is formed in the middle of the positioning ring in a penetrating mode, the bottom end of the supporting ring and the bottom end of the outer ring are coated with abrasion-resistant coatings, a user can place the O-shaped ring between the floating seat and the floating seal ring, the O-shaped ring can bear large impact of the rotation speed, and the high leakage prevention and pollution resistance capacity is achieved; as an important component of the floating oil seal, the O-shaped ring not only has a pressing effect on the floating seal ring, but also plays a role in preventing leakage through static sealing, and the O-shaped ring plays a key role in normal operation of the floating oil seal.

Description

Technical Field

[0001] The utility model relates to the technical field of floating oil seals, in particular to a novel floating oil seal with a high wear-resistant structure. Background Art

[0002] Floating oil seal is a kind of dynamic seal. It has super sealing performance in harsh working environments such as coal powder, mud, sand, water vapor, etc. It is a compact mechanical seal, mainly used in low-speed and heavy-load situations. It has the advantages of wear resistance, automatic compensation after end face wear, reliable operation, simple structure, etc. It is widely used in coal mining machinery, such as scraper conveyor head (tail) sprocket assembly, roadheader loading mechanism and cantilever section, continuous coal mining machine left and right cutting drum and reducer, etc.

[0003] Currently, the sealing rubber ring of the floating oil seal on the market cannot be firmly connected, which makes it easy for the rubber ring to be damaged by friction with the floating seal seat. To address the above situation, we have launched a new type of floating oil seal with a high wear-resistant structure. Utility Model Content

[0004] Technical problems solved

[0005] In response to the above-mentioned shortcomings of the prior art, the utility model provides a new floating oil seal with a highly wear-resistant structure, which can effectively solve the problem in the prior art that the sealing rubber ring of the floating oil seal cannot be firmly fitted, thereby causing the rubber ring to easily be damaged by friction with the floating seal seat.

[0006] Technical Solution

[0007] In order to achieve the above objectives, the present invention is implemented through the following technical solutions:

[0008] The utility model provides a new floating oil seal with a high wear-resistant structure, comprising a floating seat, an O-ring being provided on the inner side of the bottom end of the floating seat, a floating seal ring being provided on the outer side of the O-ring, the floating seat comprising a support ring, an outer ring and a positioning ring fixed between the two structures, an oil channel being formed between the support ring and the outer ring, an oil hole being provided through the middle of the positioning ring, and the bottom ends of the support ring and the outer ring being coated with a wear-resistant coating.

[0009] Furthermore, the bottom end of the support ring is a sloped structure, and the outer side of the floating seal ring is a sloped structure, and the O-ring is arranged between the sloped structures of the support ring and the floating seal ring.

[0010] Furthermore, the inner side of the support ring extends toward the bottom end, and the inner side wall there is a rounded structure.

[0011] Furthermore, the wear-resistant coating coated on the bottom ends of the support ring and the outer ring is an anti-aging agent.

[0012] Furthermore, the oil holes are provided in multiple groups at equal intervals on the positioning ring.

[0013] Furthermore, the bottom end of the oil channel is a groove structure with rounded corners, and the oil channel is connected to the oil hole.

[0014] Beneficial effects

[0015] Compared with the prior art, the technical solution provided by this utility model has the following beneficial effects:

[0016] The utility model is provided with a floating seat structure, and the user can place the O-ring between the floating seat and the floating seal ring. The O-ring can withstand the impact of a large rotation speed and has a strong ability to prevent leakage and anti-fouling. The O-ring structure, as an important component of the floating oil seal, not only has a pressing effect on the floating seal ring, but also prevents leakage through static sealing. The O-ring plays a key role in the normal operation of the floating oil seal.

[0017] An anti-aging agent coating is provided at the bottom ends of the outer ring and the support ring, which can improve the wear resistance and strength of the floating oil seal ring body and extend its service life. An oil hole is provided on the surface of the positioning ring, and lubricating oil is easily injected into the oil inlet channel through the oil hole. After the lubricating oil reaches the bottom end of the floating oil seal ring body, it can improve the lubrication performance between the floating oil seal ring body and the other floating oil seal ring body. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be derived from these drawings without inventive effort.

[0019] Figure 1 It is a structural diagram of the utility model;

[0020] Figure 2 This is a structural cross-sectional view of the utility model;

[0021] Figure 3 It is a schematic diagram of the cross-sectional structure of the utility model;

[0022] Figure 4 This is a structural breakdown diagram of the present utility model.

[0023] The numbers in the figure represent: 1. floating seat; 11. support ring; 12. outer ring; 13. positioning ring; 131. oil hole; 132. oil channel; 2. floating seal ring; 3. O-ring. DETAILED DESCRIPTION

[0024] To make the purpose, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making any creative efforts are within the scope of protection of the present invention.

[0025] The present invention will be further described below with reference to the embodiments.

[0026] Example: A new type of floating oil seal with high wear resistance, see the attached Figure 1 -Attached Figure 4 , comprising a floating seat 1, an O-ring 3 is provided on the inner side of the bottom end of the floating seat 1, a floating seal ring 2 is provided on the outer side of the O-ring 3, the floating seat 1 comprises a support ring 11, an outer ring 12 and a positioning ring 13 fixed between the two structures, an oil channel 132 is formed between the support ring 11 and the outer ring 12, and an oil hole 131 is formed through the middle of the positioning ring 13, and the bottom ends of the support ring 11 and the outer ring 12 are coated with a wear-resistant coating;

[0027] The bottom end of the support ring 11 is a sloped structure, and the outer side of the floating seal ring 2 is a sloped structure, and the O-ring 3 is arranged between the support ring 11 and the sloped structure of the floating seal ring 2; through the provided floating seat 1 structure, the user can place the O-ring 3 between the floating seat 1 and the floating seal ring 2, which can withstand the impact of a large rotation speed and has a strong ability to prevent leakage and anti-fouling. The O-ring 3 structure, as an important component of the floating oil seal, not only has a pressing effect on the floating seal ring 2, but also prevents leakage through static sealing. The O-ring plays a key role in the normal operation of the floating oil seal.

[0028] The inner side of the support ring 11 extends to the bottom end, and the inner side wall there is a rounded structure; the wear-resistant coating coated on the bottom ends of the support ring 11 and the outer ring 12 is an anti-aging agent; the oil holes 131 are opened in multiple groups at equal intervals on the positioning ring 13; the bottom end of the oil channel 132 is a groove structure with rounded corners, and the oil channel 132 is connected to the oil hole 131; an anti-aging agent coating is provided at the bottom ends of the outer ring 12 and the support ring 11, which can improve the wear resistance and strength of the floating oil seal ring body and extend its service life. An oil hole 131 is opened on the surface of the positioning ring 13, and lubricating oil is easily injected into the oil inlet channel through the oil hole 131. After the lubricating oil reaches the bottom end of the floating oil seal ring body, it can improve the lubrication performance between the floating oil seal ring body and another floating oil seal ring body.

[0029] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements will not cause the essence of the corresponding technical solutions to deviate from the protection scope of the technical solutions of the various embodiments of the present invention.

Claims

1. A new type of floating oil seal with high wear-resistant structure, characterized by: The invention comprises a floating seat (1), an O-ring (3) is provided on the inner side of the bottom end of the floating seat (1), a floating seal ring (2) is provided on the outer side of the O-ring (3), the floating seat (1) comprises a support ring (11), an outer ring (12) and a positioning ring (13) fixed between the two structures, an oil channel (132) is formed between the support ring (11) and the outer ring (12), and an oil hole (131) is opened through the middle of the positioning ring (13), and the bottom ends of the support ring (11) and the outer ring (12) are coated with a wear-resistant coating.

2. The novel floating oil seal with high wear-resistant structure according to claim 1 is characterized in that: The bottom end of the support ring (11) is a sloped structure, and the outer side of the floating seal ring (2) is a sloped structure, and the O-ring (3) is arranged between the sloped structures of the support ring (11) and the floating seal ring (2).

3. The novel floating oil seal with high wear-resistant structure according to claim 1 is characterized in that: The inner side of the support ring (11) extends toward the bottom end, and the inner side wall there is a rounded structure.

4. The novel floating oil seal with high wear-resistant structure according to claim 1 is characterized in that: The wear-resistant coating applied to the bottom ends of the support ring (11) and the outer ring (12) is an anti-aging agent.

5. The novel floating oil seal with high wear-resistant structure according to claim 4 is characterized in that: The oil holes (131) are provided in multiple groups at equal intervals on the positioning ring (13).

6. The novel floating oil seal with high wear-resistant structure according to claim 1 is characterized in that: The bottom end of the oil passage (132) is a groove structure with rounded corners, and the oil passage (132) is connected to the oil hole (131).

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