CN204437289U - Carrying roller compound sealing device - Google Patents
Carrying roller compound sealing device Download PDFInfo
- Publication number
- CN204437289U CN204437289U CN201520085030.7U CN201520085030U CN204437289U CN 204437289 U CN204437289 U CN 204437289U CN 201520085030 U CN201520085030 U CN 201520085030U CN 204437289 U CN204437289 U CN 204437289U
- Authority
- CN
- China
- Prior art keywords
- seal ring
- inner seal
- bulge loop
- carrying roller
- exterior
- 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 - Fee Related
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Abstract
The utility model relates to seal arrangement, specifically a kind of carrying roller compound sealing device.Comprise enclosing cover, exterior seal ring, felt collar, felt collar gland, the first inner seal ring and the second inner seal ring, the bearing support interference fit of two inner seal rings and carrying roller; Exterior seal ring is positioned at, between two inner seal rings, and the axle interference fit of exterior seal ring and carrying roller; Inner seal ring, exterior seal ring are many bulge loops structure, enclosing cover is reverse cover form, the outside bulge loop of enclosing cover and the second inner seal ring forms first radial labyrinth formula and seals, the inner side bulge loop of the second inner seal ring and the outside bulge loop of exterior seal ring form second radial labyrinth formula and seal, the inner side bulge loop of exterior seal ring and the outside bulge loop of the first inner seal ring form the 3rd road radial labyrinth formula and seal, felt ring seal together with the inner side end of the first inner seal ring is formed with felt collar, felt collar gland.The utility model, when not increasing steering resistance, can improve the sealing effect of carrying roller, ensures the running of carrying roller longevity.
Description
Technical field
The utility model relates to seal arrangement, specifically a kind of carrying roller compound sealing device.
Background technique
Carrying roller, as the critical piece of belt conveyer, is operated in the environment of the many water of many dirt more, and the sealing of carrying roller is a difficult problem always, because carrying roller is unpowered assembly, if employing contact seal, produce huge additional load by belt conveyer, affect the transport power of belt conveyer.Existing supporting roller sealing adopts labyrinth seal structure substantially, have at most 6 throttling gaps, and throttling gap is general all comparatively large and affect by installation precision, in order to increase sealing effect, a lot of scheme is all reducing the way of between cog expansion chamber of Sealing bulge loop, this does not meet labyrinth sealing principle, and due to carrying roller in process of production, there is foozle, too small backlash, easily cause between Sealing and rub, affect the running sensitivity of carrying roller, increase carrying roller steering resistance.
Model utility content
The utility model is intended to the problem solving existing supporting roller sealing weak effect, and under providing a kind of prerequisite not increasing carrying roller steering resistance, can improve the carrying roller composite seal structure of supporting roller sealing effect.
The technological scheme that the utility model solves the employing of described problem is:
A kind of carrying roller compound sealing device, comprise enclosing cover, exterior seal ring, felt collar, felt collar gland, inner seal ring, described inner seal ring comprises near the first inner seal ring of bearing side and the second inner seal ring away from bearing side, the bearing support interference fit of the first inner seal ring and the second inner seal ring and carrying roller; Described exterior seal ring between described first inner seal ring and described second inner seal ring, the axle interference fit of exterior seal ring and carrying roller; The first described inner seal ring, the second inner seal ring, exterior seal ring are respectively many bulge loops structure, described enclosing cover is reverse cover form, the outside bulge loop of enclosing cover and the second inner seal ring forms first radial labyrinth formula and seals, the inner side bulge loop of the second inner seal ring and the outside bulge loop of exterior seal ring form second radial labyrinth formula and seal, the inner side bulge loop of exterior seal ring and the outside bulge loop of the first inner seal ring form the 3rd road radial labyrinth formula and seal, felt ring seal together with the inner side end of the first inner seal ring is formed with described felt collar, felt collar gland.
Adopt the utility model of technique scheme, compared with prior art, its beneficial effect is:
Achieve long runner, seal tooth more, the multiple labyrinth seal structure of large between cog expansion chamber, and and the composite seal structure that combines of felt ring seal, improve the sealing effect of carrying roller when not increasing steering resistance, ensureing the running of carrying roller longevity.
As preferably, the utility model further technological scheme is:
Be stamped two outside described and form labyrinth sealed annular groove with described second inner seal ring.
The outer ring great circle cylinder of described second inner seal ring and the bearing support interference fit of carrying roller, the second inner seal ring has twice respectively to the bulge loop of both sides projection, and two, outside bulge loop embeds in two annular grooves of enclosing cover, forms the sealing of first radial labyrinth formula.
The interior cylindrical hole of described exterior seal ring and the axle interference fit of carrying roller, exterior seal ring has twice respectively to the bulge loop of both sides projection, two, outside bulge loop embeds in the outer ring of the second inner seal ring and two annular grooves of twice bulge loop formation, two, the inner side bulge loop of the second inner seal ring embeds in two annular grooves that outside exterior seal ring, two bulge loops and inner cylindrical surface are formed, and forms the sealing of second radial labyrinth formula.
Described first inner seal ring is hierarchic structure near bearing side and forms a large circle and a small circle ring, the bearing support interference fit of large circle outer surface and carrying roller, the bulge loop that first inner seal ring has twice protruding laterally, twice bulge loop embeds in two annular grooves that inside exterior seal ring, two bulge loops and inner cylindrical surface are formed, inside exterior seal ring, two bulge loops embed in two annular grooves of outer ring formation of bulge loop and the second inner seal ring outside the first inner seal ring, form the 3rd road radial labyrinth formula sealing.
Accompanying drawing explanation
Fig. 1 is the structural representation of the utility model embodiment;
In figure: felt collar gland 1, felt collar 2, the first inner seal ring 3, exterior seal ring 4, the second inner seal ring 5, enclosing cover 6, circlip for shaft 7, bearing 8, bearing support 9, sealing gasket 10.
Embodiment
The embodiment provided below in conjunction with accompanying drawing is further elaborated the utility model, but embodiment does not form any restriction to the utility model.
See Fig. 1, the bearing support 9 of carrying roller is welded on Support roll pipe end, between bearing support 9, bearing 8, install sealing gasket 10, and the iron rust for sealing idler roller inside stops gas flow in carrying roller simultaneously; Compound sealing device described in the present embodiment is installed outside bearing 8, circlip for shaft 7 is installed outside enclosing cover 6, air inside and outside carrying roller, through the sealing of this compound sealing device, can stop air flowing to greatest extent, stops water and water vapour, dust enters bearing chamber.
Compound sealing device described in the present embodiment is made up of felt collar gland 1, felt collar 2, first inner seal ring 3, exterior seal ring 4, second inner seal ring 5, enclosing cover 6, first inner seal ring 3 is near bearing side, second inner seal ring 5 is away from bearing side, and exterior seal ring 4 is between the first inner seal ring 3 and the second inner seal ring 5.
Enclosing cover 6 is reverse cover form, enclosing cover 6 has two form labyrinth sealed annular groove with the second inner seal ring 5; The outer ring great circle cylinder of the second inner seal ring 5 and bearing support 9 interference fit of carrying roller, second inner seal ring 5 has twice respectively to the bulge loop of both sides projection, two, outside bulge loop embeds in two annular grooves of enclosing cover 6, form the sealing of first radial labyrinth formula, effectively prevent dust, water and water vapour from entering carrying roller inside.
The interior cylindrical hole of exterior seal ring 4 and the axle interference fit of carrying roller, exterior seal ring 4 has twice respectively to the bulge loop of both sides projection, two, outside bulge loop embeds in the outer ring of the second inner seal ring 5 and two annular grooves of twice bulge loop formation, two, the inner side bulge loop of the second inner seal ring 5 embeds in two annular grooves that outside exterior seal ring 4, two bulge loops and interior cylindrical outer surface are formed, and forms the sealing of second radial labyrinth formula.
Wherein, there is together with being formed between the outer surface of the interior cylindrical hole of the interior internal surface of hole of the second inner seal ring 5 and the interior cylindrical hole of enclosing cover 6 and seal ring 4 the throttling runner of damping, have certain retardation to air-flow; Equally, there is together with the outer ring big column internal surface of hole of the second inner seal ring 5 also form with the cylndrical surface that exterior seal ring 4 coordinates the throttling runner of damping, have certain retardation to air-flow.
First inner seal ring 3 is hierarchic structure near bearing side and forms a large circle and a small circle ring, bearing support 9 interference fit of large circle outer surface and carrying roller, the bulge loop that first inner seal ring 3 has twice protruding laterally, twice bulge loop embeds in two annular grooves that inside exterior seal ring 4, two bulge loops and interior cylindrical outer surface are formed, inside exterior seal ring 4, two bulge loops embed in two annular grooves that outside the first inner seal ring 3, bulge loop and the second inner seal ring 5 outer ring are formed, and form the 3rd road radial labyrinth formula sealing.
Wherein, in the first inner seal ring 3 internal surface of hole define with the cylndrical surface that exterior seal ring 4 coordinates together with there is the throttling runner of damping, have certain retardation to air-flow.
Felt collar 2 puts into the shrinkage pool of the first inner seal ring 3, is then pressed into felt collar gland 1, forms one felt ring seal; Felt collar 2, as the last sealing together of seal arrangement, can be stopped all foreign matters and enter bearing chamber.
In addition, 0.05 ~ 0.1 millimeter, large circle tip to face distance bearing 8 outer ring of the first inner seal ring 3, the small circle ring of the first inner seal ring 3 embeds in the outer ring great circle post holes of the second inner seal ring 5; The outer ring big column hole end surface of the second inner seal ring 5 withstands the ear end face of the large circle of the first inner seal ring 3.
The axle interference fit of enclosing cover 6 endoporus and carrying roller, the interior cylindrical hole end face of enclosing cover 6 withstands the interior cylindrical hole end face of exterior seal ring 4, and circlip for shaft 7 is stuck in outside enclosing cover 6, plays the role of positioning to carrying roller.
This compound sealing device described in the present embodiment, the triple radial labyrinth formulas sealing having 12 ~ 13 road throttling gaps with together with felt ring seal, and the throttling runner that three have a damping (damping refers to and hinders the relative movement of gas and kinergety be converted into heat energy or other can the one effect of dissipation energy), sealing effect is more than the sealing effect of 3 labyrinth type sealing rings, the flowing of gas inside and outside carrying roller can be stopped, the foreign material such as dust, water and water vapour are stoped to enter Idler bearing position, ensure sealing effect, guarantee that carrying roller high-efficiency long-life operates.
The foregoing is only the better feasible embodiment of the utility model, not thereby interest field of the present utility model is limited to, the equivalent structure change that all utilization the utility model specifications and accompanying drawing content are done, is all contained within interest field of the present utility model.
Claims (5)
1. a carrying roller compound sealing device, comprise enclosing cover (6), exterior seal ring (4), felt collar (2), felt collar gland (1), inner seal ring, it is characterized in that, described inner seal ring comprises near first inner seal ring (3) of bearing side and the second inner seal ring (5) away from bearing side, the bearing support interference fit of the first inner seal ring (3) and the second inner seal ring (5) and carrying roller, described exterior seal ring (4) is positioned between described first inner seal ring (3) and described second inner seal ring (5), the axle interference fit of exterior seal ring (4) and carrying roller, described the first inner seal ring (3), second inner seal ring (5), exterior seal ring (4) is respectively many bulge loops structure, described enclosing cover (6) is reverse cover form, enclosing cover (6) forms first radial labyrinth formula with the outside bulge loop of the second inner seal ring (5) and seals, the inner side bulge loop of the second inner seal ring (5) and the outside bulge loop of exterior seal ring (4) form second radial labyrinth formula and seal, the inner side bulge loop of exterior seal ring (4) and the outside bulge loop of the first inner seal ring (3) form the 3rd road radial labyrinth formula and seal, the inner side end of the first inner seal ring (3) and described felt collar (2), felt collar gland (1) forms one felt ring seal.
2. carrying roller compound sealing device according to claim 1, is characterized in that, described enclosing cover (6) has two to form labyrinth sealed annular groove with described second inner seal ring (5).
3. carrying roller compound sealing device according to claim 2, it is characterized in that, the outer ring great circle cylinder of described second inner seal ring (5) and the bearing support interference fit of carrying roller, second inner seal ring (5) has twice respectively to the bulge loop of both sides projection, two, outside bulge loop embeds in two annular grooves of enclosing cover (6), forms the sealing of first radial labyrinth formula.
4. carrying roller compound sealing device according to claim 1, it is characterized in that, the interior cylindrical hole of described exterior seal ring (4) and the axle interference fit of carrying roller, exterior seal ring (4) has twice respectively to the bulge loop of both sides projection, two, outside bulge loop embeds in the outer ring of the second inner seal ring (5) and two annular grooves of twice bulge loop formation, two, the inner side bulge loop of the second inner seal ring (5) embeds in two annular grooves of exterior seal ring (4) two bulge loops in outside and inner cylindrical surface formation, forms the sealing of second radial labyrinth formula.
5. carrying roller compound sealing device according to claim 1, it is characterized in that, described first inner seal ring (3) is hierarchic structure near bearing side and forms a large circle and a small circle ring, the bearing support interference fit of large circle outer surface and carrying roller, the bulge loop that first inner seal ring (3) has twice protruding laterally, twice bulge loop embeds in two annular grooves of exterior seal ring (4) two bulge loops in inner side and inner cylindrical surface formation, in two annular grooves that the outer ring that exterior seal ring (4) two, inner side bulge loop embeds the first inner seal ring (3) outside bulge loop and the second inner seal ring (5) is formed, form the 3rd road radial labyrinth formula sealing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520085030.7U CN204437289U (en) | 2015-02-06 | 2015-02-06 | Carrying roller compound sealing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520085030.7U CN204437289U (en) | 2015-02-06 | 2015-02-06 | Carrying roller compound sealing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204437289U true CN204437289U (en) | 2015-07-01 |
Family
ID=53605158
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520085030.7U Expired - Fee Related CN204437289U (en) | 2015-02-06 | 2015-02-06 | Carrying roller compound sealing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204437289U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107061746A (en) * | 2017-05-31 | 2017-08-18 | 江苏海川卓越密封材料有限公司 | A kind of sealing device |
-
2015
- 2015-02-06 CN CN201520085030.7U patent/CN204437289U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107061746A (en) * | 2017-05-31 | 2017-08-18 | 江苏海川卓越密封材料有限公司 | A kind of sealing device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150701 Termination date: 20160206 |