CN217177406U

CN217177406U - Combined sealed high-pressure-resistant oil seal

Info

Publication number: CN217177406U
Application number: CN202220678447.4U
Authority: CN
Inventors: 李永波; 徐前进
Original assignee: Yantai Shuangyuan General Parts Co ltd
Current assignee: Yantai Shuangyuan General Parts Co ltd
Priority date: 2022-03-24
Filing date: 2022-03-24
Publication date: 2022-08-12
Anticipated expiration: 2032-03-24

Abstract

The utility model discloses a combined sealing type high pressure resistant oil seal, which relates to the technical field of high pressure resistant oil seals and comprises a transmission shaft, wherein the outer surface of the transmission shaft is connected with a fixed bearing, the right side of the fixed bearing is provided with an installation part, the inside of the installation part is provided with an oil seal shell, the right side of the oil seal shell is provided with a dustproof part, the inner wall of the dustproof part is provided with a thread groove, the inside of the thread groove is connected with a thread ring, and the inside of the dustproof part is provided with a dustproof ring; and the sealing gasket is arranged on the outer surface of the oil seal shell, and a reinforcing plate is arranged in the oil seal shell. This combination sealed high pressure resistant oil blanket passes through the dust ring that sets up on the dustproof, can play dirt-proof effect, can effectually reduce the dust and get into to the oil blanket shell in, under the cooperation of thread groove and thread ring, the dustproof can be lifted off from the oil blanket shell to be convenient for change the dust ring, need not to change whole oil blanket, improve the practicality.

Description

Combined sealed high-pressure-resistant oil seal

Technical Field

The utility model relates to a high pressure resistant oil blanket technical field specifically is a combination sealed high pressure resistant oil blanket.

Background

The oil seal is a common name of a sealing element, namely a sealing element of lubricating oil, and is used for sealing grease, the oil is a liquid substance which is most common in a transmission system, and also generally refers to a mechanical element which is the common liquid substance, and is used for isolating a part needing to be lubricated in a transmission part from a force-applying part so as not to allow the lubricating oil to leak, and the sealing elements for static sealing and dynamic sealing are called oil seals, static sealing and dynamic sealing, and the sealing elements for reciprocating motion are called sealing elements.

The existing high-pressure-resistant oil seal is inconvenient to combine when in use, the dust-proof part outside the oil seal can not be replaced, the dust-proof effect is seriously reduced due to long-time use, the oil seal is required to be integrally replaced, the practicability is poor, and technical innovation is performed on the basis of the existing high-pressure-resistant oil seal according to the situation.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a combination sealed high pressure resistant oil blanket to propose among the above-mentioned background art current high pressure resistant oil blanket inconvenient when using and make up, the outside dust keeper of oil blanket can't be changed, long-time use makes the dust keeper wearing and tearing seriously reduce dustproof effect, needs to wholly change the oil blanket, the relatively poor problem of practicality.

In order to achieve the above object, the utility model provides a following technical scheme: a combination sealed high pressure resistant oil seal comprising:

the outer surface of the transmission shaft is connected with a fixed bearing, a mounting part is arranged on the right side of the fixed bearing, an oil seal shell is arranged inside the mounting part, a dustproof part is arranged on the right side of the oil seal shell, a thread groove is formed in the inner wall of the dustproof part, a thread ring is connected inside the thread groove, and a dustproof ring is arranged inside the dustproof part;

and the sealing gasket is arranged on the outer surface of the oil seal shell, a reinforcing plate is arranged in the oil seal shell, and an oil seal framework is arranged on the inner wall of the oil seal shell.

Preferably, fixing bearing's inner wall closely laminates with the outer wall of transmission shaft, the dust keeper passes through the thread groove and constitutes to dismantle between helicoid and the oil blanket shell and is connected, and fixed knot as an organic whole constructs between dust keeper and the dust keeper.

Preferably, the inner wall of the dust ring is tightly attached to the outer wall of the transmission shaft, the oil seal shell forms a sealing structure with the mounting part through a sealing gasket, and the oil seal framework and the oil seal shell form an integrated fixing structure.

Preferably, the oil seal framework is further provided with:

the wear-resisting plate is arranged on the inner wall of the oil seal framework, and a compression tension spring is arranged inside the wear-resisting plate.

Preferably, as an organic whole fixed knot constructs between antifriction plate and the oil blanket skeleton, and compresses tightly the outer wall of extension spring outer wall and oil blanket skeleton and closely laminate.

Preferably, the mounting member is further provided with:

the installation pipe, its symmetry sets up the outer wall of installed part, the internal connection of installation pipe has fixing bolt, fixing bolt's lower extreme is connected with the gag lever post, the end-to-end connection of gag lever post has the fixed orifices.

Preferably, be fixed connection between installation pipe and the installed part, fixing bolt and gag lever post between fixed knot construct as an organic whole, and the vertical central line of gag lever post and fixed orifices coincides each other.

Compared with the prior art, the beneficial effects of the utility model are as follows:

1. the combined sealed high-pressure resistant oil seal can play a role of dust prevention through the dust ring arranged on the dust prevention piece, dust can be effectively reduced from entering the oil seal shell, and the dust prevention piece can be detached from the oil seal shell under the matching of the thread groove and the thread ring, so that the dust ring is convenient to replace, the whole oil seal does not need to be replaced, and the practicability is improved;

2. the combined sealed high-pressure-resistant oil seal can compress the oil seal framework through the compression tension spring arranged on the oil seal framework, so that the wear-resistant plate is better contacted with the outer wall of the transmission shaft, the leakage of lubricating oil is avoided, and the wear-resistant plate has a wear-resistant effect, so that the service life of the oil seal framework is prolonged;

3. this combination sealed high pressure resistant oil blanket is through the fixing bolt who sets up, screws up fixing bolt for the gag lever post inserts to the fixed orifices in, can fix installed part and oil blanket shell like this, thereby reduces the condition that oil blanket shell takes place the displacement.

Drawings

FIG. 1 is a schematic perspective view of the present invention;

FIG. 2 is a schematic view of the structure of the joint between the oil seal housing and the dust-proof member of the present invention;

FIG. 3 is an enlarged view of a portion A of FIG. 2 according to the present invention;

fig. 4 is a schematic view of the sectional structure of the installation pipe of the present invention.

In the figure: 1. a drive shaft; 2. fixing the bearing; 3. a mounting member; 4. an oil seal housing; 5. a thread ring; 6. a dust-proof member; 7. a thread groove; 8. a dust ring; 9. sealing gaskets; 10. a reinforcing plate; 11. an oil seal framework; 12. a wear plate; 13. pressing the tension spring; 14. a fixing hole; 15. installing a pipe; 16. fixing the bolt; 17. a limiting rod.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

The utility model discloses an improve and provide a combination sealed high pressure resistant oil blanket here, as shown in fig. 1-3, include: the transmission shaft 1, the outer surface of the transmission shaft 1 is connected with a fixed bearing 2, the inner wall of the fixed bearing 2 is tightly attached to the outer wall of the transmission shaft 1, the right side of the fixed bearing 2 is provided with an installation part 3, the inside of the installation part 3 is provided with an oil seal shell 4, the right side of the oil seal shell 4 is provided with a dustproof part 6, the inner wall of the dustproof part 6 is provided with a thread groove 7, the inside of the thread groove 7 is connected with a thread ring 5, the dustproof part 6 is detachably connected with the oil seal shell 4 through the thread groove 7 and the thread ring 5, the inside of the dustproof part 6 is provided with a dustproof ring 8, the dustproof ring 8 and the dustproof part 6 are in an integrated fixed structure, a sealing gasket 9 is arranged on the outer surface of the oil seal shell 4, the oil seal shell 4 forms a sealing structure with the installation part 3 through the sealing gasket 9, the inner wall of the dustproof ring 8 is tightly attached to the outer wall of the transmission shaft 1, and passes through the dustproof ring 8 arranged on the dustproof part 6, the dustproof function can be achieved, dust can be effectively prevented from entering the oil seal shell 4, the dustproof piece 6 can be detached from the oil seal shell 4 under the matching of the thread groove 7 and the thread ring 5, so that the dustproof ring 8 can be conveniently replaced, the whole oil seal does not need to be replaced, and the practicability is improved; the inside of oil blanket shell 4 is provided with reinforcing plate 10, and oil blanket skeleton 11 is installed to the inner wall of oil blanket shell 4, and fixed knot as an organic whole constructs between oil blanket skeleton 11 and the oil blanket shell 4, through the seal gasket 9 that sets up, thereby can play sealed effect and reduce liquid and get into to the installed part 3 in.

The utility model discloses an improve and provide a combination sealed high pressure resistant oil blanket here, as shown in fig. 2-4, include: the wear-resisting plate 12 is arranged on the inner wall of the oil seal framework 11, an integrated fixed structure is arranged between the wear-resisting plate 12 and the oil seal framework 11, a compression tension spring 13 is arranged inside the wear-resisting plate 12, the outer wall of the compression tension spring 13 is tightly attached to the outer wall of the oil seal framework 11, and the oil seal framework 11 can be compressed through the compression tension spring 13 arranged on the oil seal framework 11, so that the wear-resisting plate 12 is better contacted with the outer wall of the transmission shaft 1, the leakage of lubricating oil is avoided, the wear-resisting plate 12 has a wear-resisting effect, and the service life of the oil seal framework 11 is prolonged; installation pipe 15, its symmetry sets up the outer wall at installed part 3, be fixed connection between installation pipe 15 and the installed part 3, the internal connection of installation pipe 15 has fixing bolt 16, fixing bolt 16's lower extreme is connected with gag lever post 17, fixed knot as an organic whole constructs between fixing bolt 16 and the gag lever post 17, the end-to-end connection of gag lever post 17 has fixed orifices 14, gag lever post 17 and the vertical central line of fixed orifices 14 coincide each other, fixing bolt 16 through setting up, screw up fixing bolt 16, make gag lever post 17 insert to the fixed orifices in 14, can fix installed part 3 and oil blanket shell 4 like this, thereby reduce the condition that oil blanket shell 4 takes place the displacement.

The working principle of the combined sealed high-pressure resistant oil seal is as follows: before the combined sealed high-pressure resistant oil seal is used, the transmission shaft 1 and the fixed bearing 2 are connected, then the mounting part 3 is sleeved on the transmission shaft 1, the fixing bolt 16 is unscrewed through the mounting pipe 15 arranged on the transmission shaft 1, so that the limiting rod 17 is taken out, then the oil seal shell 4 is aligned to the mounting part 3, the mounting part 3 is horizontally pushed, so that the mounting part 3 is assembled on the transmission shaft 1, then the fixing bolt 16 is inserted into the mounting pipe 15, the fixing bolt 16 is screwed, the limiting rod 17 can be inserted into the fixing hole 14 through the fixing hole 14 formed in the sealing gasket 9, the oil seal shell 4 is fixed, the displacement of the oil seal shell 4 is reduced, the sealing effect can be achieved through the sealing gasket 9 arranged on the mounting part 3, so that liquid is prevented from entering the mounting part 3, and the reinforcing plate 10 is arranged on the mounting part 3, the strength of the whole oil seal can be enhanced, the abrasion-resistant plate 12 on the oil seal framework 11 can be better contacted with the outer wall of the transmission shaft 1 through the arranged oil seal framework 11 under the matching of the compression tension spring 13, so that the leakage of lubricating oil between the transmission shaft 1 and the fixed bearing 2 is effectively reduced, the abrasion-resistant plate 12 can play a role of abrasion resistance, the excessive abrasion of the transmission shaft 1 to the oil seal framework 11 during rotation can be effectively reduced, the dustproof function can be played through the dustproof ring 8 arranged on the dustproof piece 6, the external dust can be effectively reduced from entering the oil seal shell 4, the dustproof piece 6 can be detached from the oil seal shell 4 through the threaded ring 5 arranged on the oil seal shell 4 under the matching of the threaded groove 7, the dustproof piece 6 is convenient to replace, the whole oil seal does not need to be replaced, and resources are saved, the practicability is strong.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. A combination sealed high pressure resistant oil seal, characterized by includes:

the oil seal device comprises a transmission shaft (1), wherein the outer surface of the transmission shaft (1) is connected with a fixed bearing (2), a mounting part (3) is arranged on the right side of the fixed bearing (2), an oil seal shell (4) is arranged inside the mounting part (3), a dustproof part (6) is arranged on the right side of the oil seal shell (4), a thread groove (7) is formed in the inner wall of the dustproof part (6), a thread ring (5) is connected inside the thread groove (7), and a dustproof ring (8) is arranged inside the dustproof part (6);

the sealing gasket (9) is arranged on the outer surface of the oil seal shell (4), the reinforcing plate (10) is arranged inside the oil seal shell (4), and an oil seal framework (11) is installed on the inner wall of the oil seal shell (4).

2. The combination sealed high-pressure resistant oil seal according to claim 1, wherein: the inner wall of the fixed bearing (2) is tightly attached to the outer wall of the transmission shaft (1), the dustproof piece (6) is detachably connected with the oil seal shell (4) through a thread groove (7) and a thread ring (5), and the dustproof ring (8) and the dustproof piece (6) are of an integrated fixed structure.

3. The combination sealed high-pressure resistant oil seal according to claim 1, wherein: the inner wall of the dust ring (8) is tightly attached to the outer wall of the transmission shaft (1), the oil seal shell (4) forms a sealing structure with the mounting part (3) through a sealing gasket (9), and the oil seal framework (11) and the oil seal shell (4) form an integrated fixing structure.

4. The combination sealed high-pressure resistant oil seal according to claim 1, wherein: the oil seal framework (11) is also provided with:

the wear-resisting plate (12) is arranged on the inner wall of the oil seal framework (11), and a compression tension spring (13) is arranged inside the wear-resisting plate (12).

5. The combination sealed high-pressure resistant oil seal according to claim 4, wherein: the wear-resisting plate (12) and the oil seal framework (11) are of an integrated fixing structure, and the outer wall of the compression tension spring (13) is tightly attached to the outer wall of the oil seal framework (11).

6. The combination sealed high-pressure resistant oil seal according to claim 1, wherein: the mounting piece (3) is further provided with:

installation pipe (15), its symmetry sets up the outer wall of installed part (3), the internal connection of installation pipe (15) has fixing bolt (16), the lower extreme of fixing bolt (16) is connected with gag lever post (17), the end-to-end connection of gag lever post (17) has fixed orifices (14).

7. The combination sealed high-pressure resistant oil seal according to claim 6, wherein: be fixed connection between installation pipe (15) and installed part (3), be fixed knot structure as an organic whole between fixing bolt (16) and gag lever post (17), and the vertical central line of gag lever post (17) and fixed orifices (14) coincides each other.