CN202867841U - Combined seal mechanism - Google Patents
Combined seal mechanism Download PDFInfo
- Publication number
- CN202867841U CN202867841U CN 201220553226 CN201220553226U CN202867841U CN 202867841 U CN202867841 U CN 202867841U CN 201220553226 CN201220553226 CN 201220553226 CN 201220553226 U CN201220553226 U CN 201220553226U CN 202867841 U CN202867841 U CN 202867841U
- Authority
- CN
- China
- Prior art keywords
- ring
- flange plate
- sealing
- sealing structure
- seal ring
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
Landscapes
- Sealing Using Fluids, Sealing Without Contact, And Removal Of Oil (AREA)
Abstract
The utility model discloses a combined seal mechanism which is designed to solve the problems that the existing pull rod of a rolling mill is simple in structure, bad in seal effect and the like. The combined seal mechanism comprises a labyrinth ring, a flange plate and a distance collar from outside to inside. A groove is formed in the outer surface of the labyrinth ring, a first embossment and a second embossment are arranged on the inner surface of the flange plate from outside to inside, and the first embossment fits in with the groove and is installed in the groove. The distance collar, an inner side section of the flange plate and the second embossment are combined to form a ring-shaped cavity body. The cavity is provided with a first seal ring which tightly matches with the cavity body. The combined seal mechanism has the advantages of being good in seal effect, simple in structure, convenient to use and the like.
Description
Technical field
The utility model relates to a kind of sealing configuration, relates in particular to a kind of sealing configuration of roll pull bar.
Background technique
On steel rolling production-line, steel billet can produce a large amount of band high temperature oxidation iron plate and dust by rolling mill, rolling process need to provide the cooling water of injection to roll for improving roll campaign, thisly have in the large and moist environment of a large amount of high temperature oxidation iron plates, dust so just be operated in as the pull bar of the most important adjustment roller gap of milling train.
In order to carry out seal protection the working life of extending pull rod, the seal arrangement of existing pull bar mostly is single O shape circle or lip-type packing, thereby causes following deficiency:
One: sealing means is single, and sealing effect is poor;
Two: seal ring is directly exposed in this environment and very easily damages;
Three: roll is in the work engineering, and stressed generation deformation causes relative displacement or distortion occur between pull bar and bearing support and the nut, and sealing was easily lost efficacy.
Seal failure or sealing are tight not, thereby impurity, water etc. are easy to enter and cause each parts to get rusty between pull bar and bearing support and the nut embroidering bad or because foreign material block, can not adjust normally roll gap, and maintenance rate is high, maintenance expenses is many, and impact production.
The model utility content
For overcoming the problems referred to above, it is a kind of multi-layer sealed that the utility model provides, good sealing effect, the stressed combined sealing structure that does not affect sealing effect of roll.
For reaching above-mentioned purpose, the utility model combined sealing structure comprises labyrinth ring, flange plate and distance ring from outside to inside successively;
The outer surface of described labyrinth ring is recessed to form groove downwards;
The internal surface of described flange plate is provided with the first projection, the second projection from outside to inside successively; Described the first projection is suitable and be installed in the described groove with described groove;
Described distance ring and described flange plate inboard and described the second combination of protrusions form the cavity of annular; In described cavity, be provided with and friction tight the first seal ring of described cavity.
Further, described combined sealing structure also comprises the second seal ring that is positioned at described distance ring inboard.
Further, described the second seal ring is O-ring seals.
Further, described the first convex inner surface upwards forms arc-shaped concave; Also be provided with the 3rd seal ring between described arc-shaped concave and the described groove.
The beneficial effect of the utility model combined sealing structure:
1, the utility model combined sealing structure comprises successively from outside to inside labyrinth ring, flange plate and positioning ring and is positioned at flange plate and the first seal ring of the cavity that positioning ring forms.At first labyrinth ring and flange plate are positioned at the sealing of outside formation first, prevent entering of the larger particle of extraneous diameter, dust; Thereby again can stop to have formed second layer sealing from fine particle and the entering of malaria of labyrinth ring and flange plate escaping slot by the sealing of the first seal ring.When excellent sealing effect is played in double seal, be not directly exposed to external world's longer service life thereby hold flimsy the first seal ring, pull bar is connected more stable with nut, easily can rust or stopped up by impurity.And during roll stress and deformation further, so that when reserving the gap between pull bar and the rolling bearing, even the first layer seal failure also has the second layer still can play good seal action.
2, the utility model combined sealing structure, formed three-layer sealed by arranging of the second seal ring, sealing effect is better in three-layer sealed being arranged so that, has further tackled steam, the small dust of escaping from second layer sealing, has further guaranteed sealing.
3, the utility model combined sealing structure, by the setting at the 3rd seal ring, formed the secondary seal layer of first sealing, when the roll stress and deformation, the continuous and effective that deformation guarantees the first sealing also occurs in the second seal ring in the first sealing between pull bar and the roll accordingly, thereby sealing effect is better.
Comprehensively above-mentioned, the utility model combined sealing structure, multi-layer sealed by arranging, guaranteed the good of sealing effect, thereby guaranteed the long perfomance life of pull bar, meanwhile, reduced frequency of maintenance, the maintenance cost of milling train, guarantee simultaneously carrying out smoothly of production, thereby had significant effect.
Description of drawings
Fig. 1 is the described combined sealing structure connection diagram of the utility model the second embodiment.
Embodiment
Below in conjunction with Figure of description the utility model is further described.
The first embodiment:
The present embodiment combined sealing structure comprises labyrinth ring, flange plate and distance ring from outside to inside successively;
The outer surface of described labyrinth ring is recessed to form groove downwards;
The internal surface of described flange plate is provided with the first projection, the second projection from outside to inside successively; Described the first projection is suitable and be installed in the described groove with described groove; The end face of flange plate and labyrinth ring have formed the first layer sealing jointly, can be used for tackling hammer scale larger in the larger air, dust, water droplet or the globule etc.;
Described distance ring and described flange plate inboard and described the second combination of protrusions form the cavity of annular; In described cavity, be provided with and friction tight the first seal ring of described cavity.Deformation occurs and has formed second layer sealing in the first seal ring in described cavity.Second layer sealing is used for tackling the fine dusts of escaping from the first layer sealing, water vapour etc.
The formation of double-layer seal has changed the structure of individual layer sealing in the conventional method, and sealing effect is good, thereby working life that can extending pull rod, reduces maintenance rate and the maintenance expenses of milling train, thus carrying out smoothly of can guaranteeing to produce.It is large that mounting hole gap when roll deformation on pull bar and the roll upper bearing (metal) axle becomes, and first layer is sealed with and may loses efficacy, but second layer sealing still effectively protects pull bar to avoid the corrosion of dust, steam, and sealing effect is good.
The second embodiment:
As shown in Figure 1, the present embodiment combined sealing structure comprises labyrinth ring 1, flange plate 2, distance ring 3 and the second seal ring 7 from outside to inside successively;
The outer surface of described labyrinth ring is recessed to form groove downwards;
The internal surface of described flange plate is provided with the first projection 4, the second projection 5 from outside to inside successively; Described the first projection 4 is suitable and be installed in the described groove with described groove;
Described distance ring 3 is combined to form annular cavity with described flange plate 2 end faces and described the second projection 5; In described cavity, be provided with and friction tight the first seal ring 6 of described cavity.
With respect to the first embodiment, the setting of present embodiment by the second seal ring 7, formed the three-layer sealed, thereby entering of the steam that has further prevented from escaping from the second sealing, dust further improved sealing effect.When the gap appears in roll and pull bar, second layer sealing, the three-layer sealed effective status that still is in, sealing can not lost efficacy.
Further further improve as present embodiment, described the first convex inner surface of present embodiment upwards forms arc-shaped concave, between described groove and described arc-shaped concave, also be provided with the 3rd seal ring 8, form the secondary seal of first layer sealing, thereby consolidated the sealing effect of first layer sealing.When pull bar swings or roll when vibrations or when being subject to external force generation deformation, described the 3rd seal ring can guarantee the excellent sealing of first layer sealing, thus prolonged pull bar working life, guaranteed the normal operation of milling train.
In concrete application process, described the first seal ring, the second seal ring, the 3rd seal ring all can be selected required material and structure as required, in the present embodiment simple, the good sealing effect of described the second seal ring and the equal preferred structure of described the 3rd seal ring, and the low O RunddichtringO of cost.Thereby described combined sealing structure has possessed characteristics with low cost simultaneously.
More than; it only is preferred embodiment of the present utility model; but protection domain of the present utility model is not limited to this; anyly be familiar with those skilled in the art in the technical scope that the utility model discloses; the variation that can expect easily or replacement all should be encompassed within the protection domain of the present utility model.Therefore, protection domain of the present utility model should be as the criterion with the protection domain that claim was defined.
Claims (4)
1. a combined sealing structure is characterized in that, described combined sealing structure comprises labyrinth ring, flange plate and distance ring from outside to inside successively;
The outer surface of described labyrinth ring is recessed to form groove downwards;
The internal surface of described flange plate is provided with the first projection, the second projection from outside to inside successively; Described the first projection is suitable and be installed in the described groove with described groove;
Described distance ring and described flange plate inner side end and described the second combination of protrusions form the cavity of annular; In described cavity, be provided with and friction tight the first seal ring of described cavity.
2. combined sealing structure according to claim 1 is characterized in that, described combined sealing structure also comprises the second seal ring that is positioned at described distance ring inboard.
3. combined sealing structure according to claim 2 is characterized in that, described the second seal ring is O-ring seals.
4. arbitrary described combined sealing structure is characterized in that according to claim 1-3, and described the first convex inner surface upwards forms arc-shaped concave; Also be provided with the 3rd seal ring between described arc-shaped concave and the described groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220553226 CN202867841U (en) | 2012-10-25 | 2012-10-25 | Combined seal mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220553226 CN202867841U (en) | 2012-10-25 | 2012-10-25 | Combined seal mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202867841U true CN202867841U (en) | 2013-04-10 |
Family
ID=48034563
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220553226 Expired - Lifetime CN202867841U (en) | 2012-10-25 | 2012-10-25 | Combined seal mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202867841U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106321503A (en) * | 2016-08-30 | 2017-01-11 | 宁波天工机械密封有限公司 | Mechanical seal for food equipment |
| CN109630661A (en) * | 2018-12-28 | 2019-04-16 | 南京高速齿轮制造有限公司 | The wind pitch gear box of sealing structure with filtering function |
-
2012
- 2012-10-25 CN CN 201220553226 patent/CN202867841U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106321503A (en) * | 2016-08-30 | 2017-01-11 | 宁波天工机械密封有限公司 | Mechanical seal for food equipment |
| CN106321503B (en) * | 2016-08-30 | 2019-05-17 | 宁波天工机械密封有限公司 | A kind of food apparatus mechanical seal |
| CN109630661A (en) * | 2018-12-28 | 2019-04-16 | 南京高速齿轮制造有限公司 | The wind pitch gear box of sealing structure with filtering function |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN202867841U (en) | Combined seal mechanism | |
| CN203880093U (en) | Sealing ring | |
| CN201306449Y (en) | Double-lip seal structure used for oil film bearing of high-speed wire rolling mill | |
| CN201776287U (en) | Roller bending hydraulic cylinder for cold-rolling mill | |
| CN203362845U (en) | Sealed radial spherical plain bearing | |
| CN105443786A (en) | Elastic compensation sealing inner part structure of telescopic valve | |
| CN209586959U (en) | A kind of rolling mill roll roll neck seal mechanism | |
| CN201103687Y (en) | Split combined double-lip grease seal | |
| CN206997357U (en) | Roll-bending cylinder cylinder rod and gland sealing assembling pressure frame | |
| CN204438751U (en) | For the sealing device of malleation rotary kiln | |
| CN203348618U (en) | Novel pressurized sealing ball valve | |
| CN211344028U (en) | Composite sealing structure | |
| CN207114072U (en) | A kind of protection device of closed measurement of rolling force sensor | |
| CN103352990A (en) | Novel pressurizing sealing ball valve | |
| CN204152971U (en) | Carry the edger roll bearing of sealing and there is the milling train of this edger roll bearing | |
| CN201482797U (en) | Anti-loose device for snap ring of large-sized universal mill | |
| CN205504035U (en) | Telescoping valve elastic compensation seals internals structure | |
| CN201901173U (en) | Novel transition arm | |
| CN209977249U (en) | Slewing bearing multi-lip sealing device | |
| CN104455455A (en) | Bearing sealing piece | |
| CN203704653U (en) | Sintering machine head and tail sealing device | |
| CN220624959U (en) | Low-temperature trolley furnace rear sealing device | |
| CN202746747U (en) | Self-compensating double packing seal structure | |
| CN205278377U (en) | Can adapt to decentered skeleton oil blanket of dust and pivot | |
| CN205278378U (en) | High follow -up nature skeleton oil blanket |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130410 |
|
| CX01 | Expiry of patent term |