CN202030296U - Sealing device with protective curve cavity gap - Google Patents
Sealing device with protective curve cavity gap Download PDFInfo
- Publication number
- CN202030296U CN202030296U CN2011200892547U CN201120089254U CN202030296U CN 202030296 U CN202030296 U CN 202030296U CN 2011200892547 U CN2011200892547 U CN 2011200892547U CN 201120089254 U CN201120089254 U CN 201120089254U CN 202030296 U CN202030296 U CN 202030296U
- Authority
- CN
- China
- Prior art keywords
- seal ring
- inner seal
- sealing ring
- over cap
- inner sealing
- 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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- Sealing Using Fluids, Sealing Without Contact, And Removal Of Oil (AREA)
- Sealing Devices (AREA)
Abstract
A sealing device with a protective curve cavity gap comprises an inner sealing ring (4), an outer sealing ring (2) and an outer protective cover (1); the outer sealing ring (2) consists of a pedestal body arranged on a bearing support and a labyrinth seal cavity; the inner sealing ring (4) is provided with a shaft sleeve and a labyrinth seal cavity; a curve cavity gap having an Epsilon-shaped cross section is arranged between the inner sealing ring (4) and the outer sealing ring (2); the outer protective cover (1) is arranged at the outer side of the inner sealing ring (4); a bulge part (41) is arranged on the outer end of the contact surface formed by the inner sealing ring (4) and the outer protective cover (1); the outer protective cover (1) is provided with a concave part (11) corresponding to the bulge part (41) of the inner sealing ring (4); the cross section of the bulge part (41) of the inner sealing ring (4) is C-shaped; and the inner side of the outer protective cover (1) and the outer side of the inner sealing ring (4) have the same shape at the contact part and are matched with each other. The intensity of the outer protective cover (1) is extremely larger than that of the inner sealing ring (4) so as to efficiently protect the inner sealing ring (4) from being damaged; therefore, the service life is prolonged.
Description
One, technical field
The utility model relates to a kind of sealing arrangement with protection bend lacuna, and especially a kind of adaptation is used for the sealing arrangement with bend lacuna of ribbon conveyer carrying roller.
Two, background technology
In order to keep the cleaning inside of Idler bearing, increase the service life, the sealing arrangement of bearing is an important mechanical part, special mechanical device such as ribbon conveyer of in harsh environment, working, ribbon conveyer is widely used in metallurgy, the mine, coal, the harbour, the power station, a plurality of industries such as harbour, be used to carry various loose unpacked materials and member article, carrying roller is to be used for the material that carries on support belt and the load-transfer device, and the device of assurance load-transfer device smooth running, it also is the critical component in the belt conveyer use, it is dustproof, waterproof and rotational resistance are three important indicators indicating capability and performance, mostly adopt labyrinth type bend hermetically-sealed construction at the existing mechanical sealing arrangement, preferably resolve above problem, but because labyrinth type bend sealing mechanism adopts plastics and nylon, injection moulding or compression moulding, its intensity is low, fragility is big and expose, in installation and transportation and operation use, very easily damage, reduced service life.
Three, summary of the invention
In order to overcome above-mentioned technical disadvantages, the purpose of this utility model provides a kind of sealing arrangement with protection bend lacuna, has therefore prolonged service life.
For achieving the above object; the technical scheme that the utility model is taked is: include inner seal ring; exterior seal ring and outer over cap; pedestal and labyrinth packing chamber that exterior seal ring is located on the bearing seat are formed; inner seal ring is provided with axle sleeve and labyrinth packing chamber; being provided with cross-sectional plane between inner seal ring and the exterior seal ring is ε shape bend lacuna; outer over cap is arranged on the outside of inner seal ring; inner seal ring is provided with lug boss with the outer end of the face that outer over cap contacts; outer over cap is provided with and the corresponding recess of the lug boss of inner seal ring, and the cross-sectional plane of the lug boss of inner seal ring is set to c shape.
After exterior seal ring and inner seal ring are installed; again outer over cap is installed on the inner seal ring; outer over cap is buckled on the inner seal ring; owing to designed outer over cap, making and having formed the outer end between outer over cap and the inner seal ring is that C shape the inner is the gap of straight line, makes outer over cap directly form protection to inner seal ring and exterior seal ring; enclosing cover is made simply, material is extensive, intensity is high; protect inner seal ring effectively, the Idler bearing in-to-in is kept clean, therefore prolonged service life.
The utility model has designed, inner seal ring and outside to be set to the outer end be that C shape is inner the gap that forms between the over cap is straight line.
The utility model has designed, and the medial surface of over cap is corresponding with the lateral surface shape of inner seal ring.Promptly the inboard of outer over cap is the same with contact position, inner seal ring outside profile, works in coordination, and outer over cap intensity is higher than inner seal ring, has effectively protected interior outer gland sealing.
Four, description of drawings
Fig. 1 is a scheme drawing of the present utility model:
Fig. 2 is the structural representation of enclosing cover 1.
Five, the specific embodiment
Accompanying drawing is an embodiment of the present utility model; specify present embodiment in conjunction with the accompanying drawings; include inner seal ring 4; exterior seal ring 2 and outer over cap 1; but exterior seal ring 2 is made up of pedestal and labyrinth packing chamber that interference is located on the bearing seat; inner seal ring 4 is provided with axle sleeve and labyrinth packing chamber; being provided with cross-sectional plane between inner seal ring 4 and the exterior seal ring 2 is ε shape bend lacuna; outer over cap 1 is arranged on the outside of inner seal ring 4; inner seal ring 4 is provided with lug boss 41 with the outer end of the face that outer over cap 1 contacts; outer over cap 1 is provided with the lug boss 41 corresponding recesses 11 with inner seal ring 4; the cross-sectional plane of the lug boss 41 of inner seal ring 4 is set to c shape, inner seal ring 4 and outside to be set to the outer end be that C shape is inner the gap that forms between the over cap 1 is straight line.
The utility model has designed, and the medial surface of over cap 1 is corresponding with the lateral surface shape of inner seal ring 4.
After exterior seal ring 2 and inner seal ring 4 are installed, outer over cap 1 is installed on the inner seal ring 4, outer over cap 1 is buckled on the inner seal ring 4.
Be applied in the belt transporter at the utility model, the projection of exterior seal ring 2 and cavity cooperate by grease with the cavity and the projection of corresponding inner seal ring 4, anti-sealing and dust enter Idler bearing inside, improved the service life of carrying roller, again owing to adopt the sealing of lacuna formula, so its rotational resistance also meets the requirement of rotational resistance.But inner seal ring 4 adopts plastics or nylon injection-molding compacting to form, and in transportation, the installation and operation, because exposed parts intensity is low, fragility is greatly very easily damaged, and influences service life under coal mine.For this reason our company outside interior sealing by the profile of interior sealing (exposed parts) with the high material of certain thickness intensity (as iron plate, stainless steel sheet) be pressed into a kind of outside over cap 1, actv. has been protected inner seal ring 4, has prolonged the service life of sealing arrangement.
The characteristics of the utlity model has down:
1, owing to designed outer over cap 1; making and having formed the outer end between outer over cap 1 and the inner seal ring 4 is that C shape the inner is the gap of straight line; make outer over cap 1 directly form protection to inner seal ring 4 and exterior seal ring 2; outer over cap 1 is made simply, material is extensive, intensity is high; protect Idler bearing in-to-in cleaning effectively, therefore prolonged service life.
2, the utility model is reasonable in design, easy to install and use, and actv. has been protected interior sealing exposed parts, has increased the life-span.
3, owing to designed that to be provided with cross-sectional plane between inner seal ring 4 and the exterior seal ring 2 be ε shape bend lacuna, therefore most of trickle and dust are got rid of away, fraction may enter in the ring cavity, can only destroy the first road oil film seal like this, the central column projection of inner seal ring and exterior seal ring combine with axle sleeve and pass through grease seal, further stop water and dust to enter bearing inside, and then reach dustproof, water repellant purpose.
In having the sealing arrangement technical field of bend lacuna; Every inner seal ring 4 that includes; exterior seal ring 2 and outer over cap 1; pedestal and labyrinth packing chamber that exterior seal ring 2 is located on the bearing seat are formed; inner seal ring 4 is provided with axle sleeve and labyrinth packing chamber; being provided with cross-sectional plane between inner seal ring 4 and the exterior seal ring 2 is ε shape bend lacuna; outer over cap 1 is arranged on the outside of inner seal ring 4; inner seal ring 4 is provided with lug boss 41 with the outer end of the face that outer over cap 1 contacts; outer over cap 1 is provided with the lug boss 41 corresponding recesses 11 with inner seal ring 4; the cross-sectional plane of the lug boss 41 of inner seal ring 4 is set to c shape, and (inboard of promptly outer over cap 1 is the same with contact position, inner seal ring 4 outside shape; work in coordination; outer over cap intensity is higher than inner seal ring, has effectively protected interior outer gland sealing) technology contents all in protection domain of the present utility model.
Claims (3)
1. one kind has the sealing arrangement of protecting the bend lacuna; it is characterized in that: include inner seal ring (4); exterior seal ring (2) and outer over cap (1); pedestal and labyrinth packing chamber that exterior seal ring (2) is located on the bearing seat are formed; inner seal ring (4) is provided with axle sleeve and labyrinth packing chamber; being provided with cross-sectional plane between inner seal ring (4) and the exterior seal ring (2) is ε shape bend lacuna; outer over cap (1) is arranged on the outside of inner seal ring (4); the outer end of the face that inner seal ring (4) contacts with outer over cap (1) is provided with lug boss (41); enclosing cover (1) is provided with the corresponding recess of lug boss (41) (11) with inner seal ring (4), and the cross-sectional plane of the lug boss (41) of inner seal ring (4) is set to c shape.
2. the sealing arrangement with protection bend lacuna according to claim 1; It is characterized in that: inner seal ring (4) and outside to be set to the outer end be that C shape is inner the gap that forms between the over cap (1) is straight line.
3. the sealing arrangement with protection bend lacuna according to claim 1 and 2; It is characterized in that: the medial surface of over cap (1) is corresponding with the lateral surface shape of inner seal ring (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200892547U CN202030296U (en) | 2011-03-30 | 2011-03-30 | Sealing device with protective curve cavity gap |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200892547U CN202030296U (en) | 2011-03-30 | 2011-03-30 | Sealing device with protective curve cavity gap |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202030296U true CN202030296U (en) | 2011-11-09 |
Family
ID=44892603
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011200892547U Expired - Fee Related CN202030296U (en) | 2011-03-30 | 2011-03-30 | Sealing device with protective curve cavity gap |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202030296U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102438927A (en) * | 2009-05-20 | 2012-05-02 | 英特诺控股公司 | Drum motor with inner and outer covers |
-
2011
- 2011-03-30 CN CN2011200892547U patent/CN202030296U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102438927A (en) * | 2009-05-20 | 2012-05-02 | 英特诺控股公司 | Drum motor with inner and outer covers |
| CN102438927B (en) * | 2009-05-20 | 2017-02-08 | 英特诺控股公司 | Drum motor having inner and outer cover |
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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: 20111109 Termination date: 20180330 |