Multi-lip framework oil seal capable of preventing oil port from being damaged

Abstract

The utility model relates to the technical field of framework oil seals, and discloses a multi-lip framework oil seal capable of preventing an oil port from being damaged, which comprises a framework main body and an oil seal wrapping layer, the framework main body is positioned on the inner side of the oil seal wrapping layer, and leakage-proof arc-shaped lips are arranged at the edges of an inner ring and an outer ring of the oil seal wrapping layer. According to the oil seal, the leakage-proof arc-shaped lip opening is arranged to serve as the main lip, the leakage-proof sealing effect is achieved, the inclined sealing lip opening serves as the auxiliary lip, the auxiliary leakage-proof and overall leakage-proof sealing performance is excellent, the leakage-proof arc-shaped lip opening is supported by the main lip supporting framework, and the inclined sealing lip opening is supported by the annular opening supporting framework. The leakage-proof outer lip is not prone to inclination and deformation, durability is excellent, the leakage-proof outer lip is assisted to be attached to the leakage-proof arc-shaped lip opening, abrasion resistance is assisted to be improved, the deformation prevention capacity is improved, the device has multi-lip-opening sealing protection, leakage-proof sealing performance is good, the lip opening framework supporting capacity is achieved, and abrasion resistance and deformation prevention capacity are excellent.

Description

Technical Field

[0001] The utility model relates to the technical field of skeleton oil seals, in particular to a multi-lip skeleton oil seal for avoiding oil port damage. Background Technique

[0002] The skeleton oil seal is a typical representative of oil seals. Generally, the oil seal refers to the skeleton oil seal. The function of the oil seal is generally to isolate the lubricated parts in the transmission parts from the external environment, so as to prevent the leakage of lubricating oil. The skeleton is like the steel bars in concrete components, playing a strengthening role and enabling the oil seal to maintain its shape and tension. According to the structural form, it can be divided into single-lip skeleton oil seals and double-lip skeleton oil seals; the secondary lip of the double-lip skeleton oil seal plays a dust-proof role, preventing external dust, impurities, etc. from entering the machine interior.

[0003] The existing skeleton oil seals can be divided into inner-encased skeleton oil seals, exposed skeleton oil seals and assembled oil seals according to the skeleton type. The inner skeleton oil seal plays an inner support role and enhances the support strength of the oil seal. However, in the actual use process, the existing skeleton oil seals are usually single-lip or double-lip oil seals, and the anti-leakage sealing ability is relatively insufficient. Moreover, the lip is easily damaged due to wear and extrusion, and the anti-damage protection ability is relatively insufficient, and the durability of the oil seal is not good. Therefore, we propose a multi-lip skeleton oil seal for avoiding oil port damage to solve the above problems. Content of the Utility Model

[0004] (1) Technical Problems to be Solved

[0005] In view of the deficiencies of the prior art, the utility model provides a multi-lip skeleton oil seal for avoiding oil port damage, which has the advantages of multi-lip seal protection, good anti-leakage sealing performance, skeleton support ability for the lip, excellent anti-wear and anti-deformation ability, etc., and solves the problems that the existing oil seals have relatively insufficient anti-leakage sealing ability, and the lip is easily damaged due to wear and extrusion, and the anti-damage protection ability is insufficient.

[0006] (2) Technical Solutions

[0007] To achieve the above-mentioned purposes of multi-lip seal protection, good anti-leakage sealing performance, skeleton support ability for the lip, and excellent anti-wear and anti-deformation ability, the utility model provides the following technical solution: a multi-lip skeleton oil seal for avoiding oil port damage, including a skeleton main body and an oil seal wrapping layer, and the skeleton main body is located inside the oil seal wrapping layer;

[0008] Anti-leakage arc lips are provided at both the inner ring and the outer ring edges of the oil seal wrapping layer, inclined sealing lips are provided at both the inner ring and the outer ring of the oil seal wrapping layer, a ring mouth support skeleton is supported inside the anti-leakage arc lip, and a main lip support skeleton is supported inside the inclined sealing lip;

[0009] Among them, the ring mouth support skeleton and the main lip support skeleton are both installed and adapted on the skeleton body.

[0010] Preferably, a plurality of the anti-leakage arc lips are all inclined outward, and two adjacent anti-leakage arc lips before and after are in a corresponding state.

[0011] Preferably, auxiliary anti-leakage outer lips are snap-connected to the outer sides of a plurality of the anti-leakage arc lips, and the plurality of auxiliary anti-leakage outer lips are respectively located at the ring mouth edges on the front and rear sides of the oil seal wrapping layer.

[0012] Preferably, the skeleton body and the oil seal wrapping layer are integrally arranged in an annular shape, the top view section of the skeleton body is rectangular, and the oil seal wrapping layer is closely fitted and cast on the outer side of the skeleton body.

[0013] Preferably, a plurality of the ring mouth support skeletons and the main lip support skeletons are all installed at the inner and outer rings of the skeleton body, and the skeleton body, the ring mouth support skeletons and the main lip support skeletons are combined into a whole.

[0014] Preferably, a plurality of the inclined sealing lips are arranged at equal intervals at the inner and outer rings of the oil seal wrapping layer, and the plurality of inclined sealing lips are inclined in the same direction.

[0015] Preferably, a damage-proof filling ring is filled between a plurality of the inclined sealing lips, and the damage-proof filling ring is a metal filling ring.

[0016] (III) Beneficial effects

[0017] Compared with the prior art, the present utility model provides a multi-lip skeleton oil seal for avoiding oil port damage, which has the following beneficial effects:

[0018] 1. The multi-lip skeleton oil seal for avoiding oil port damage has an oil seal sealing ability by setting an oil seal wrapping layer. Anti-leakage arc lips are provided at the inner and outer ring edges of the oil seal wrapping layer as the main lips, which can play a main lip anti-leakage sealing effect when the oil seal wrapping layer seals the oil port. Inclined sealing lips arranged at equal intervals are also provided at the inner and outer rings of the oil seal wrapping layer as the secondary lips, which play an auxiliary anti-leakage sealing effect, so that the overall oil seal has relatively excellent anti-leakage sealing performance, enabling the device to have multi-lip sealing protection and better anti-leakage sealing performance.

[0019] 2. The multi-lip skeleton oil seal that avoids oil port damage has a skeleton body provided to play a rigid bearing and supporting role for the oil seal wrapping layer. The leak-proof arc lip is adaptively supported by the main lip support skeleton, and the inclined sealing lip is adaptively supported by the ring support skeleton. It is prone to inclination and deformation, and has excellent durability. The auxiliary leak-proof outer lip helps to increase wear resistance, making the overall lip body have excellent anti-deformation and wear resistance capabilities. The device has a skeleton support ability for the lip, and excellent anti-wear and anti-deformation capabilities. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a front view three-dimensional schematic diagram of the structure of the present utility model;

[0021] Figure 2 It is a top view sectional three-dimensional schematic diagram of the structure of the present utility model;

[0022] Figure 3 It is a side view sectional three-dimensional schematic diagram of the structure of the present utility model;

[0023] Figure 4 For the present utility model Figure 3 Enlarged schematic diagram of part A of the structure.

[0024] In the figure: 1. Skeleton body; 2. Oil seal wrapping layer; 3. Leak-proof arc lip; 4. Inclined sealing lip; 5. Ring support skeleton; 6. Main lip support skeleton; 7. Auxiliary leak-proof outer lip; 8. Anti-damage filling ring. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0025] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0026] Please refer to Figures 1-3 , a multi-lip skeleton oil seal that avoids oil port damage, including a skeleton body 1 and an oil seal wrapping layer 2, and the skeleton body 1 is located inside the oil seal wrapping layer 2;

[0027] Leak-proof arc lips 3 are provided at both the inner and outer ring edges of the oil seal wrapping layer 2, inclined sealing lips 4 are provided at both the inner and outer rings of the oil seal wrapping layer 2, a ring support skeleton 5 is supported inside the leak-proof arc lip 3, and a main lip support skeleton 6 is supported inside the inclined sealing lip 4;

[0028] Among them, both the ring support skeleton 5 and the main lip support skeleton 6 are installed and adapted on the skeleton body 1;

[0029] The beneficial effects of this solution: By providing leak - proof arc lips 3 at both the inner and outer rings of the oil - seal wrapping layer 2, which serve as the main lips and achieve the main - lip leak - proof sealing effect, and the inclined sealing lips 4 as the secondary lips to achieve the auxiliary leak - proof sealing effect, the overall leak - proof sealing performance is excellent. The leak - proof arc lip 3 is supported by the main - lip support skeleton 6, and the inclined sealing lip 4 is supported by the ring - mouth support skeleton 5. During oil - seal sealing, it is not prone to tilting and deformation, and the durability is relatively excellent. The auxiliary leak - proof outer lip 7 fits onto the leak - proof arc lip 3, which helps increase wear resistance and further improves the anti - deformation ability, enabling the device to have multi - lip sealing protection, good leak - proof sealing performance, and the ability to support the lips with a skeleton, with excellent anti - wear and anti - deformation capabilities.

[0030] Furthermore, multiple leak - proof arc lips 3 are all inclined outward, and two adjacent leak - proof arc lips 3 in the front - to - back direction are corresponding;

[0031] By setting that multiple leak - proof arc lips 3 are all inclined outward and corresponding to each other front - to - back, it can stably adapt for oil - seal type sealing, and the leak - proof performance is good.

[0032] Furthermore, auxiliary leak - proof outer lips 7 are snap - connected to the outer sides of multiple leak - proof arc lips 3, and multiple auxiliary leak - proof outer lips 7 are respectively located at the ring - mouth edges on both the front and back sides of the oil - seal wrapping layer 2;

[0033] By setting the auxiliary leak - proof outer lip 7, the auxiliary leak - proof outer lip 7 is correspondingly attached to the outer side of the leak - proof arc lip 3, which helps increase wear resistance and has excellent wear - resistant and damage - proof capabilities.

[0034] Furthermore, the skeleton main body 1 and the oil - seal wrapping layer 2 are both arranged in an annular shape as a whole. The top - view cross - section of the skeleton main body 1 is rectangular, and the oil - seal wrapping layer 2 is closely poured and attached to the outer side of the skeleton main body 1;

[0035] By setting that the skeleton main body 1 and the oil - seal wrapping layer 2 are both in an annular shape as a whole and the top - view surface of the skeleton main body 1 is rectangular, it can stably support the oil - seal wrapping layer 2, with excellent keel - support ability and good adaptability.

[0036] Furthermore, multiple ring - mouth support skeletons 5 and main - lip support skeletons 6 are both installed at the inner and outer rings of the skeleton main body 1, and the skeleton main body 1, the ring - mouth support skeletons 5, and the main - lip support skeletons 6 are combined into a whole;

[0037] By setting that the skeleton main body 1, the ring - mouth support skeletons 5, and the main - lip support skeletons 6 are combined into a whole, the overall adaptability and durability are good, the load - bearing adaptability is stable, and the anti - deformation ability is excellent.

[0038] Furthermore, multiple inclined sealing lips 4 are arranged at equal distances at the inner and outer rings of the oil - seal wrapping layer 2, and multiple inclined sealing lips 4 are inclined in the same direction;

[0039] By arranging a plurality of inclined sealing lips 4 to be adaptively installed at equal distances, it plays an auxiliary role in the oil seal sealing, and the plurality of inclined sealing lips 4 are inclined in the same direction, with good adaptability and sealing performance.

[0040] Furthermore, a damage-proof filling ring 8 is filled between the plurality of inclined sealing lips 4, and the damage-proof filling ring 8 is a metal filling ring;

[0041] By arranging the damage-proof filling ring 8, the damage-proof filling ring 8 can play an auxiliary bearing and supporting role in the gap between adjacent inclined sealing lips 4, further improving the anti-deformation ability, and making the overall lip body have excellent anti-deformation and wear-resistant capabilities.

[0042] It should be noted that each device in this application is a common device in the market, which can be selected according to needs during specific use, and the circuit connection relationships of each device all belong to simple series and parallel connection circuits. There is no innovation point in the circuit connection part, and those skilled in the art can easily implement it, which belongs to the prior art and will not be elaborated here.

[0043] Working principle: By arranging a skeleton main body 1 inside the oil seal wrapping layer 2, it plays a rigid bearing and supporting role. The oil seal wrapping layer 2 has the oil seal sealing ability. Anti-leakage arc lips 3 are provided at both the inner and outer ring edges of the oil seal wrapping layer 2, which are the main lips. When the oil seal wrapping layer 2 performs oil port sealing, it can play a main lip anti-leakage sealing effect. Inclined sealing lips 4 arranged at equal distances are also provided at the inner and outer rings of the oil seal wrapping layer 2, which are the secondary lips and play an auxiliary anti-leakage sealing effect, so that the overall oil seal has relatively excellent anti-leakage sealing performance;

[0044] The oil seal wrapping layer 2 is adaptively supported by the skeleton main body 1. The anti-leakage arc lip 3 is supported by the main lip support skeleton 6, which provides a skeleton-type support for the main lip inside. The inclined sealing lip 4 is supported by the ring mouth support skeleton 5, which provides a skeleton-type support for the secondary lip inside, so that both the main lip and the secondary lip have good support and bearing capabilities. When performing oil seal sealing, they are not prone to tilting and deformation, and have excellent durability. An auxiliary anti-leakage outer lip 7 is correspondingly attached to the outside of the anti-leakage arc lip 3 to assist in increasing wear resistance. The damage-proof filling ring 8 can play an auxiliary bearing and supporting role in the gap between adjacent inclined sealing lips 4, further improving the anti-deformation ability, making the overall lip body have excellent anti-deformation and wear-resistant capabilities, enabling the device to have multi-lip sealing protection, good anti-leakage sealing performance, and having a skeleton support ability for the lips, excellent anti-wear and anti-deformation capabilities, and solving the problems that the existing oil seal anti-leakage sealing effect is relatively insufficient, and the lips are easily damaged due to wear and extrusion, and the damage-proof protection ability is insufficient.

[0045] It should be noted that in this text, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprising", "including" or any other variant thereof are intended to cover non-exclusive inclusion, such that a process, method, article or device comprising a series of elements not only includes those elements but also includes other elements not expressly listed, or elements inherent to such process, method, article or device. Without further limitation, an element defined by the statement "comprising an..." does not exclude the presence of additional identical elements in the process, method, article or device comprising the said element.

[0046] Although embodiments of the present invention have been shown and described, it will be understood by those of ordinary skill in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A multi-lip skeleton oil seal for preventing oil port damage, characterized in that: It comprises a skeleton body (1) and an oil seal wrapping layer (2), wherein the skeleton body (1) is located inside the oil seal wrapping layer (2); The inner ring and outer ring edges of the oil seal wrapping layer (2) are both provided with leak-proof arcuate lips (3), the inner ring and outer ring edges of the oil seal wrapping layer (2) are both provided with inclined sealing lips (4), the leak-proof arcuate lips (3) are supported by a ring support frame (5), and the inclined sealing lips (4) are supported by a main lip support frame (6); Wherein, the ring mouth support frame (5) and the main lip support frame (6) are both installed and adapted on the frame body (1).

2. A multi-lip skeleton oil seal for preventing oil port damage according to claim 1, characterized in that: The plurality of leak-proof arcuate lips (3) are all inclined outwards, and two front and rear adjacent leak-proof arcuate lips (3) are in a corresponding shape.

3. A multi-lip skeleton oil seal for preventing oil port damage according to claim 2, characterized in that: The outer sides of the plurality of leak-proof arcuate lips (3) are all snap-connected with auxiliary leak-proof outer lips (7), and the plurality of auxiliary leak-proof outer lips (7) are respectively located at the edges of the ring opening on the front and rear sides of the oil seal wrapping layer (2).

4. A multi-lip skeleton oil seal for preventing oil port damage according to claim 1, characterized in that: The skeleton body (1) and the oil seal wrapping layer (2) are arranged in a ring shape as a whole; the skeleton body (1) has a rectangular cross-section when viewed from above; and the oil seal wrapping layer (2) is cast in close contact with the outer side of the skeleton body (1).

5. A multi-lip skeleton oil seal for preventing oil port damage according to claim 1, characterized in that: The plurality of ring support frames (5) and main lip support frames (6) are installed at the inner ring and the outer ring of the frame body (1); the frame body (1), the ring support frames (5) and the main lip support frames (6) are combined into a whole.

6. A multi-lip skeleton oil seal for preventing oil port damage according to claim 1, characterized in that: The plurality of inclined sealing lips (4) are installed at the inner ring and the outer ring of the oil seal wrapping layer (2) in an equidistantly arranged manner, and the plurality of inclined sealing lips (4) are inclined in the same direction.

7. A multi-lip skeleton oil seal for preventing oil port damage according to claim 1, characterized in that: An anti-damage filling ring (8) is filled between the plurality of inclined sealing lips (4), and the anti-damage filling ring (8) is a metal filling ring.

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