CN215110511U

CN215110511U - Lip-shaped sealing ring

Info

Publication number: CN215110511U
Application number: CN202120664693.XU
Authority: CN
Inventors: 吴亮安; 李杨
Original assignee: Suzhou Jiatai Rubber & Plastic Technology Co ltd
Current assignee: Suzhou Jiatai Rubber & Plastic Technology Co ltd
Priority date: 2021-04-01
Filing date: 2021-04-01
Publication date: 2021-12-10
Anticipated expiration: 2031-04-01

Abstract

The utility model relates to a lip seal technical field just discloses a lip seal, which comprises a frame, the last fixed surface of skeleton installs first rubber layer, the last fixed surface on first rubber layer installs the water pocket layer, the last fixed surface on water pocket layer installs the plastics enhancement layer, the last fixed surface of plastics enhancement layer installs the second rubber layer, the last fixed surface on second rubber layer installs the fluororubber layer, the lip has been seted up to the upper surface on fluororubber layer, skeleton fixed surface installs polytetrafluoroethylene. This lip seal has increased the compressive property of skeleton through the skeleton that sets up, has improved lip seal's intensity simultaneously, and through the water pocket layer that sets up, the water is filled in the crusty pancake layer or other liquid that specific heat capacity is great, guarantees lip seal when using, can not take place deformation because of the change of temperature, has enlarged the application range of device.

Description

Lip-shaped sealing ring

Technical Field

The utility model relates to a lip seal technical field specifically is a lip seal.

Background

The lip-shaped sealing ring is sealed by deforming the lip mouth under the action of hydraulic pressure to make the lip mouth tightly attached to the sealing surface. The higher the hydraulic pressure is, the tighter the lip edge is attached to the sealing surface, and the lip edge has certain automatic compensation capability after being worn. Such seals are commonly used for reciprocating dynamic seals, commonly known as Y-and V-seals.

Among the prior art, most sealing washer adopt certain single material more, and resilience force and compressive property are poor, use for a long time and easily lose sealed effect, and general life is shorter, and its material often is rubber, and no skeleton supports, and compressive property is relatively poor, and specific heat capacity is also less, very easily changes along with the change of temperature and deforms, under the effect of expend with heat and contract with cold, very easily appears sealed not firm phenomenon.

SUMMERY OF THE UTILITY MODEL

Technical problem to be solved

The utility model provides a lip seal possesses advantages such as application range that enlarges the device, has solved the frameless and has supported, and compressive property is relatively poor, and specific heat capacity is also less, very easily deforms along with the change of temperature, under the effect of expend with heat and contract with cold, very easily appears sealing the problem of not firm phenomenon.

(II) technical scheme

In order to realize the purpose of the above-mentioned application range that enlarges the device, the utility model provides a following technical scheme: the utility model provides a lip-shaped sealing ring, includes the skeleton, the last fixed surface of skeleton installs first rubber layer, the last fixed surface on first rubber layer installs the water pocket layer, the last fixed surface on water pocket layer installs the plastics enhancement layer, the last fixed surface on plastics enhancement layer installs the second rubber layer, the last fixed surface on second rubber layer installs the fluororubber layer, the lip has been seted up to the upper surface on fluororubber layer, skeleton external fixed surface installs polytetrafluoroethylene.

Preferably, the framework comprises a rubber bottom layer, and a group of aluminum alloy sheets are arranged on the upper surface of the rubber bottom layer.

Preferably, the number of the aluminum alloy sheets is more than four, every two aluminum alloy sheets are in one group, and every two groups of aluminum alloy sheets are connected with each other, and the distance between the aluminum alloy sheets is equal.

Preferably, the outer surface of the water bag layer is sleeved with a rubber sleeve.

Preferably, the projection of the cross section of the lip is V-shaped.

Preferably, the polytetrafluoroethylene has a thickness of 0.1-0.3 cm.

(III) advantageous effects

Compared with the prior art, the utility model provides a lip seal possesses following beneficial effect:

(1) this lip seal, when using, through the skeleton that sets up, increased the compressive property of skeleton, improved lip seal's intensity simultaneously, through the water pocket layer that sets up, the water is filled in the crusty pancake layer or other than the great liquid of heat capacity, guarantees lip seal when using, can not take place deformation because of the change of temperature, has enlarged the application range of device.

(2) When the lip-shaped sealing ring is used, the fluororubber is a synthetic polymer elastomer containing fluorine atoms on carbon atoms of a main chain or a side chain through the arranged fluororubber layer, the introduction of the fluorine atoms endows the rubber with excellent heat resistance, oxidation resistance, oil resistance, corrosion resistance and atmospheric aging resistance, the service life of the lip-shaped sealing ring is prolonged, and the arranged polytetrafluoroethylene is a thermoplastic polymer, so that the friction, abrasion and machine energy consumption can be reduced, and the service life of the device is prolonged.

Drawings

Fig. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic structural view of A-A in FIG. 1 according to the present invention;

fig. 3 is a schematic view of the framework structure of the present invention.

In the figure: 1. a framework; 2. a first rubber layer; 3. a water sac layer; 4. a plastic reinforcing layer; 5. a second rubber layer; 6. a fluororubber layer; 7. a lip; 8. polytetrafluoroethylene.

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.

Referring to fig. 1-3, a lip-shaped seal ring includes a frame 1, a first rubber layer 2 is fixedly mounted on an upper surface of the frame 1, a water bag layer 3 is fixedly mounted on an upper surface of the first rubber layer 2, a plastic reinforcing layer 4 is fixedly mounted on an upper surface of the water bag layer 3, a second rubber layer 5 is fixedly mounted on an upper surface of the plastic reinforcing layer 4, a fluororubber layer 6 is fixedly mounted on an upper surface of the second rubber layer 5, a lip 7 is formed on an upper surface of the fluororubber layer 6, and polytetrafluoroethylene 8 is fixedly mounted on an outer surface of the frame 1.

Further, the framework 1 comprises a rubber bottom layer 101, a group of aluminum alloy sheets 102 are mounted on the upper surface of the rubber bottom layer 101, the compression resistance of the framework 1 is improved, and meanwhile the strength of the lip-shaped sealing ring is improved.

Further, the number of the aluminum alloy sheets 102 is larger than four, every two aluminum alloy sheets 102 form a group, the distance between every two groups of aluminum alloy sheets 102 connected with each other is equal, the stress uniformity of the aluminum alloy sheets 102 is ensured, and the phenomenon that the sealing ring is locally raised or broken due to the uneven stress is avoided.

Further, the outer surface cover of water bag layer 3 is equipped with the rubber sleeve, plays the effect of protection water bag layer 3, and the water is filled in the crusty pancake layer 3 and is filled with water or other liquid that specific heat capacity is great, guarantees that lip seal can not take place deformation because of the change of temperature when using, has enlarged the application range of device.

Furthermore, the cross section projection of the lip 7 is V-shaped, so that the installation and connection with other equipment are facilitated, and the use by a user is facilitated.

Furthermore, the thickness of the polytetrafluoroethylene 8 is 0.1-0.3cm, and the polytetrafluoroethylene 8 is a thermoplastic polymer, so that the friction, the abrasion and the energy consumption of a machine can be reduced, and the service life of the device is prolonged.

To sum up, this lip seal, when using, through the skeleton 1 that sets up, increased the compressive property of skeleton 1, improved the intensity of lip seal simultaneously, through the water pocket layer 3 that sets up, the intussuseption of water crusty pancake layer 3 is filled with water or other liquid that specific heat is great, guarantees that lip seal can not take place deformation because of the change of temperature when using, has enlarged the application range of device.

When the lip-shaped sealing ring is used, the fluorine rubber layer 6 is arranged, the fluorine rubber is a synthetic polymer elastomer containing fluorine atoms on carbon atoms of a main chain or a side chain, the introduction of the fluorine atoms endows the rubber with excellent heat resistance, oxidation resistance, oil resistance, corrosion resistance and atmospheric aging resistance, the service life of the lip-shaped sealing ring is prolonged, and the polytetrafluoroethylene 8 is a thermoplastic polymer, so that the friction, abrasion and machine energy consumption can be reduced, and the service life of the device is prolonged.

It is to be noted that the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.

The standard parts used in the present application document can be purchased from the market, and can be customized according to the description of the specification and the accompanying drawings, the specific connection mode of each part adopts the conventional means matured in the prior art, the machines, the parts and the equipment adopt the conventional types in the prior art, the circuit connection adopts the conventional connection mode in the prior art, no specific description is provided here, meanwhile, the electric elements appearing in the specification are electrically connected with the external main controller and the mains supply, the peripheral controller mentioned in the specification can play a control role for the electric elements mentioned in the specification, and the peripheral controller is the conventional known equipment.

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 lip seal circle, includes skeleton (1), its characterized in that: the upper surface fixed mounting of skeleton (1) has first rubber layer (2), the upper surface fixed mounting on first rubber layer (2) has water bag layer (3), the upper surface fixed mounting of water bag layer (3) has plastics enhancement layer (4), the upper surface fixed mounting of plastics enhancement layer (4) has second rubber layer (5), the last fixed mounting of second rubber layer (5) has fluororubber layer (6), lip (7) have been seted up to the upper surface of fluororubber layer (6), skeleton (1) outer fixed mounting has polytetrafluoroethylene (8).

2. The lip seal of claim 1, wherein: the framework (1) comprises a rubber bottom layer (101), and a group of aluminum alloy sheets (102) are mounted on the upper surface of the rubber bottom layer (101).

3. The lip seal according to claim 2, wherein: the number of the aluminum alloy sheets (102) is more than four, every two aluminum alloy sheets (102) form a group, and the distances between every two groups of the aluminum alloy sheets (102) are equal.

4. The lip seal of claim 1, wherein: the outer surface of the water bag layer (3) is sleeved with a rubber sleeve.

5. The lip seal of claim 1, wherein: the cross section projection of the lip (7) is V-shaped.

6. The lip seal of claim 1, wherein: the thickness of the polytetrafluoroethylene (8) is 0.1-0.3 cm.