CN209990897U

CN209990897U - Hydraulic sealing device

Info

Publication number: CN209990897U
Application number: CN201920552564.4U
Authority: CN
Inventors: 季旭; 陶宝瑞
Original assignee: Yangzhong Huasen Seals Co Ltd
Current assignee: Yangzhong Huasen Seals Co Ltd
Priority date: 2019-04-22
Filing date: 2019-04-22
Publication date: 2020-01-24
Anticipated expiration: 2029-04-22

Abstract

The utility model discloses a hydraulic sealing device, including sealed body, sealed body lateral wall ring is equipped with the fixed recess, both ends lateral wall ring is equipped with the retaining ring recess about the sealed body, both ends surface all is equipped with the work lip about the sealed body, work lip one side is equipped with sealed recess, inside first splint and the second splint of being equipped with of sealed recess, be equipped with the centre gripping recess between first splint and the second splint, work lip opposite side is equipped with the mounting hole, the utility model discloses simple structure, simple to operate, the modern design is sealed inseparabler to can effectively prevent that the sealing member from being corroded when using, the setting of high temperature resistant structural layer makes the life of sealing member obtain improving, is applicable to harsh environment under work.

Description

Hydraulic sealing device

Technical Field

The utility model relates to a sealing washer technical field specifically is a hydraulic pressure sealing device.

Background

The leakage of hydraulic oil is always a troublesome problem in hydraulic transmission devices, which not only affects the working performance and production efficiency of the hydraulic transmission devices, but also pollutes the production environment and wastes resources and the like. Practical production experience shows that an effective way for solving the problem of hydraulic oil leakage of the hydraulic transmission device is to select a sealing ring with excellent sealing performance. By selecting the hydraulic sealing ring with proper material and structure and taking corresponding protection measures, the sealing performance of the common hydraulic sealing ring can be improved to the maximum extent, and the economic benefit of enterprises is improved.

The existing gaskets are of various types, and can be roughly classified into rubber gaskets, plastic gaskets, metal gaskets and alloy gaskets according to the material, however, the gaskets have different defects. Such as: the rubber gasket is generally not resistant to high and low temperatures, is easy to be sticky at high temperatures, loses elasticity at low temperatures, is similar to an FFKM perfluororubber gasket, has excellent performance, but is expensive, generally only suitable for the top-end scientific and technological field, and is not suitable for general experiments; among plastic gaskets, the polytetrafluoroethylene gasket which is the most used at present has poor reusability and low comprehensive cost performance although high and low temperature resistance and good sealing effect; in the aspect of metal gaskets, at present, a plurality of metal gaskets are made of hard materials, are not easy to deform and install and are easy to damage instruments; although the alloy gasket has good performance, the alloy gasket is expensive and is not suitable for general experiments and large-scale industrial production.

At present, most of commonly used sealing elements are made of common nitrile-butadiene rubber, and the diameters of the sealing elements are equal, so that the sealing elements in the oil cylinder are poor in high-temperature resistance and sealing performance, short in service life and required to be replaced frequently, production is seriously affected, and production cost is increased.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a hydraulic pressure sealing device to solve the problem that proposes among the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: including sealed body, sealed body lateral wall encircles and is equipped with fixed recess, both ends lateral wall encircles and is equipped with the retaining ring recess about the sealed body, both ends surface all is equipped with the work lip about the sealed body, work lip one side is equipped with sealed recess, inside first splint and the second splint of being equipped with of sealed recess, be equipped with the centre gripping recess between first splint and the second splint, work lip opposite side is equipped with the mounting hole.

Furthermore, the outer surface of the working lip is provided with a high-temperature resistant structure layer.

Furthermore, a check ring is arranged in the check ring groove, and the check ring is of a nylon structure.

Further, the first clamping plate and the second clamping plate are arranged inside the sealing groove in a surrounding mode, and the first clamping plate and the second clamping plate are inwards inclined.

Further, the cross section of the fixing groove is arc-shaped or rectangular.

Further, the sealing body is made of polyurethane.

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

1. the utility model can be fixedly arranged on a workpiece to be sealed by adopting the fixing groove, and the retainer ring is fixed by adopting the retainer ring groove, so that the hydraulic seal ring can be ensured not to deform even under high pressure, and the hydraulic seal ring is used as usual, thereby enhancing the sealing performance;

2. the sealing groove is internally provided with the clamping plate, so that the sealing groove is more tightly sealed with the sealing parts to be sealed at the upper end and the lower end, the working lip can deform due to pressure when the sealing groove works, and then the sealing groove is tightly connected with the working lip, so that the sealing effect of the sealing ring is further improved;

3. the utility model discloses simple structure, simple to operate, the modern design is sealed inseparabler to can prevent effectively that the sealing member from being corroded when using, the setting of high temperature resistant structural layer makes the life of sealing member obtain improving, is applicable to and works under harsh rugged environment.

Drawings

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

FIG. 2 is a schematic side view of the present invention;

fig. 3 is a schematic view of the cross-sectional structure of the present invention.

In FIGS. 1-3: 1-sealing the body; 2-fixing the groove; 3-a retainer groove; 4-the working lip; 5-sealing the groove; 6-mounting holes; 7-a first splint; 8-a second splint; 9-clamping groove.

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, the present invention provides a technical solution: comprising a sealing body 1.

Wherein, the side wall of the sealing body 1 is annularly provided with a fixed groove 2.

Wherein, fixed recess 2 can be fixed on treating sealed work piece by fixed mounting, avoids in the use, produces because of the work piece motion and drops.

And the side walls of the upper end and the lower end of the sealing body 1 are annularly provided with retainer ring grooves 3.

Wherein, retaining ring groove 3 can the fixed retaining ring, and the guarantee hydraulic seal circle can not warp even under highly compressed condition yet, uses as usual, has strengthened sealing performance.

Wherein, the upper and lower both ends surface of sealing body 1 all is equipped with working lip 4.

Wherein, the working lip 4 can generate deformation when the workpiece is pressurized and sealed, and the workpiece is highly sealed.

Wherein, 4 one sides of working lip are equipped with sealed recess 5, sealed recess 5 is inside to be equipped with first splint 7 and second splint 8, be equipped with centre gripping recess 9 between first splint 7 and the second splint 8.

Wherein, first splint 7 and second splint 8 make it inseparabler with treating that the sealing member is sealed at upper and lower both ends to can drive working lip 4 and produce deformation because of pressure, then zonulae occludens further improves the sealed effect of sealing washer.

Wherein, the other side of the working lip 4 is provided with a mounting hole 6.

The mounting hole 6 can penetrate and fix a shaft of the hydraulic transmission device, and normal work of the hydraulic transmission device is guaranteed.

Furthermore, the outer surface of the working lip 4 is provided with a high-temperature resistant structure layer.

Wherein, make the sealing washer also can work under high temperature state, avoid producing deformation.

Furthermore, a check ring is arranged in the check ring groove 3, and the check ring is of a nylon structure.

Wherein, adopt the retaining ring of nylon construction can ensure that hydraulic seal ring can not warp even under the highly compressed condition yet, use as usual, strengthened sealing performance.

Further, the first clamping plate 7 and the second clamping plate 8 are annularly arranged inside the sealing groove 5, and the first clamping plate 7 and the second clamping plate 8 have a certain inward inclination angle.

Wherein, the first splint 7 and the second splint 8 that have certain inclination can the centre gripping about both ends treat that the sealing member seals inseparabler, then zonulae occludens, further improves the sealed effect of sealing washer.

Further, the cross section of the fixing groove 2 is arc-shaped or rectangular.

Wherein, can select according to different hydraulic transmission device work pieces, can inseparabler connection fixed.

Further, the sealing body 1 is made of polyurethane.

The polyurethane sealing ring has a plurality of excellent characteristics, including (1) wide adjustable range of performance and strong adaptability, (2) good wear resistance, (3) high mechanical strength, (4) good bonding performance, (5) good elasticity, excellent resilience and suitability for dynamic joints, (6) good low-temperature flexibility, (7) good weather resistance, long service life of 15 ~ 20 years, (8) good oil resistance, (9) biological aging resistance and (10) moderate price.

The working principle is as follows: during the use, select the sealing washer according to the hydraulic transmission device work piece of difference, it is fixed through the inseparable connection of fixed recess 2, with 3 internally mounted retaining rings of retaining ring recess before the installation, can ensure hydraulic seal even can not warp under highly compressed condition yet, then, at the during operation, the first splint 7 and the second splint 8 that have certain inclination angle can the centre gripping about both ends treat that the sealing member is sealed inseparabler, then zonulae occludens, further improves the sealed effect of sealing washer.

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 hydraulic seal device comprising a seal body (1), characterized in that: the sealing body (1) side wall is provided with a fixing groove (2) in a surrounding mode, the side wall at the upper end and the lower end of the sealing body (1) is provided with a retainer ring groove (3) in a surrounding mode, the surfaces of the upper end and the lower end of the sealing body (1) are provided with working lips (4), one side of each working lip (4) is provided with a sealing groove (5), the sealing groove (5) is internally provided with a first clamping plate (7) and a second clamping plate (8), a clamping groove (9) is arranged between the first clamping plate (7) and the second clamping plate (8), and the other side of each working lip (4) is provided with a mounting hole (.

2. A hydraulic seal according to claim 1, wherein: and a high-temperature-resistant structural layer is arranged on the outer surface of the working lip (4).

3. A hydraulic seal according to claim 1, wherein: the retainer ring is arranged in the retainer ring groove (3) and adopts a nylon structure.

4. A hydraulic seal according to claim 1, wherein: the first clamping plate (7) and the second clamping plate (8) are annularly arranged inside the sealing groove (5), and the first clamping plate (7) and the second clamping plate (8) have a certain inclination angle inwards.

5. A hydraulic seal according to claim 1, wherein: the section of the fixing groove (2) is arc-shaped or rectangular.

6. A hydraulic seal according to claim 1, wherein: the sealing body (1) is made of polyurethane.