CN203199573U - Labyrinth type leakage stoppage dustproof mechanism - Google Patents
Labyrinth type leakage stoppage dustproof mechanism Download PDFInfo
- Publication number
- CN203199573U CN203199573U CN 201320186964 CN201320186964U CN203199573U CN 203199573 U CN203199573 U CN 203199573U CN 201320186964 CN201320186964 CN 201320186964 CN 201320186964 U CN201320186964 U CN 201320186964U CN 203199573 U CN203199573 U CN 203199573U
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- CN
- China
- Prior art keywords
- rotating shaft
- bearing
- casing
- labyrinth type
- box
- 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)
Abstract
The utility model discloses a labyrinth type leakage stoppage dustproof mechanism, whichcomprises a box and a rotating shaft, wherein the rotating shaft penetrates through the box; the rotating shaft positioned in the box is provided with blades; the rotating shaft at the two ends of the box is supported by bearings; a labyrinth type sealing device is arranged between each bearing and the box, and comprises a moving sleeve which is arranged on the rotating shaft and of which one end is providedwith convex teeth, and a fixed sleeve which is matched with the moving sleeve and of which one end is providedwith grooves matched and clamped with the convex teeth; one end of each bearing is providedwith a bearing seat plate through a fastener, and each fixed sleeve is arranged on the related bearing seat plate through a screw; and a flange is further arranged on each bearing seat plate and is connected with one end of the box. The convex teeth of each moving sleeve are matched and clamped with the grooves of each fixed sleeve to form a labyrinth type seal, the sealing effect is good, a travel distance when dust runs outside during spiral conveying is increased, the reliability is high, the bearings are protected, and the service life of the bearings is prolonged.
Description
Technical field
The utility model relates to sealing arrangement, and especially a kind of labyrinth type that is applicable to fine materials is cut leakage dust-proof mechanism.
Background technology
In the feeder of helical feed, the end float misalignment phenomenon of screw shaft is serious, the fine materials of higher order number particularly, as french talc (be white or off-white color, fine, without the powder of grittiness, hand touches with soapy feeling.Odorless, tasteless.This product is not all dissolved in water, the acid of rare ore deposit or rare alkali hydroxide solution.Can do medicinal.), its fineness is 400 orders, and granularity is 38um only, and its physical property is dry smooth, and good flowing properties, its physical property are dry smooth, good flowing properties namely has the slit to scurry out.
Spiral feeder structure of the prior art, by the helicallobe rotation material is constantly carried, the rotating shaft two ends of helicallobe are installed installs by bearings, seal ring or tightening seal washer sealing are adopted in the sealing of bearing, in use, fine powder easily enters in the bearing, causes grease emulsion deterioration, inefficacy, thereby cause bearing because of bad lubricated the damage, shorten bearing service life.
The utility model content
The applicant is unreliable for adopting the sealing of seal ring, tightening seal washer in the above-mentioned existing production technology, affect the shortcomings such as bearing service life, provide a kind of labyrinth type rational in infrastructure to cut leakage dust-proof mechanism, thereby increased the change of the mobile distance of dust and 180 degree flowing angles repeatedly, increased resistance, good sealing effect in the service life of prolongation bearing, reduces cost.
The technical scheme that the utility model adopts is as follows:
A kind of labyrinth type is cut leakage dust-proof mechanism, comprise casing, rotating shaft, described rotating shaft is through described casing, and the rotating shaft that is positioned at casing is equipped with blade, rotating shaft place of described tank ends is installed by bearings, between described bearing and the casing labyrinth-type excluder is installed, the structure of described labyrinth-type excluder is: comprise the moving cover that is installed in the rotating shaft, one end of described moving cover is provided with double wedge, also comprise and moving cover cooperates the cover of deciding of installing, a described fixed end that overlaps is provided with the groove of the clamping that matches with double wedge; One end of described bearing is equipped with bearing plate by fastener, and described fixed cover is installed on the bearing plate by screw; Be positioned at flange also is installed on the bearing plate, described flange links to each other with casing one end.
As further improvement in the technical proposal:
The structure of described moving cover is: the described moving terraced structure that overlaps into, its middle part has the first through hole.
The structure of described fixed cover is: described fixed cover middle part has the second through hole, has a plurality of screw holes on the anchor ring of described fixed cover.
The orthogonal structure of double wedge of described moving cover one end.
Described flange welding is on bearing plate and casing.
The beneficial effects of the utility model are as follows:
The utility model compact conformation is reasonable; make with easy for installation; utilize the groove fit clamping of double wedge with the fixed cover of moving cover, form labyrinth seal, good sealing effect; increase the mobile distance that dust is altered in the helical feed outward; repeatedly the changes of the 180 degree flow direction of altering dust outward makes outer resistance of altering very big, has stoped the outer of dust to alter good reliability; the protection bearing, the service life of prolongation bearing.
Description of drawings
Fig. 1 is structural representation of the present utility model.
Fig. 2 is the partial enlarged drawing of A section among Fig. 1.
Fig. 3 is the structural representation of the moving cover of the utility model.
Fig. 4 is the structural representation that the utility model overlaps surely.
Wherein: 1, blade; 2, rotating shaft; 3, casing; 4, moving cover; 5, flange; 6, bearing plate; 7, fixed cover; 8, screw; 9, bearing; 10, the first through hole; 11, double wedge; 12, groove; 13, screw hole; 14, the second through hole.
The specific embodiment
Below in conjunction with accompanying drawing, the specific embodiment of the present utility model is described.
As depicted in figs. 1 and 2, the labyrinth type of the present embodiment is cut leakage dust-proof mechanism, comprise casing 3, rotating shaft 2, rotating shaft 2 is through casing 3, and the rotating shaft 2 that is positioned at casing 3 is equipped with blade 1, rotating shaft 2 places at casing 3 two ends support by bearing 9 and install, between bearing 9 and the casing 3 labyrinth-type excluder is installed, the structure of labyrinth-type excluder is: comprise the moving cover 4 that is installed in the rotating shaft 2, one end of moving cover 4 is provided with double wedge 11, also comprise cooperates installation with moving cover 4 decide cover 7, surely overlap the groove 12 that an end of 7 is provided with the clamping that matches with double wedge 11; One end of bearing 9 is equipped with bearing plate 6 by fastener, surely overlaps 7 and is installed on the bearing plate 6 by screw 8; Be positioned at flange 5 also is installed on the bearing plate 6, flange 5 links to each other with casing 3 one ends; Flange 5 is welded on bearing plate 6 and the casing 3.
As shown in Figure 3, the structure of moving cover 4 is: 4 one-tenths terraced structures of moving cover, its middle part has the first through hole 10, is used for being installed on rotating shaft 2, movingly overlaps 4 and is installed in the rotating shaft 2 by key (not marking among the figure).The double wedge 11 orthogonal structures of moving cover 4 one ends.
As shown in Figure 4, surely overlap 7 structure and be: surely overlap 7 middle parts and have the second through hole 14, be used for installing and rotating shaft 2, surely overlap on 7 the anchor ring and have a plurality of screw holes 13.
The utility model compact conformation cooperates clamping by the double wedge 11 that utilizes moving cover 4 with the groove 12 that surely overlaps 7, forms labyrinth seal, good sealing effect, protection bearing 9.
Above description is to explanation of the present utility model, is not the restriction to utility model, and the utility model limited range within protection domain of the present utility model, can be done any type of modification referring to claim.
Claims (5)
1. a labyrinth type is cut leakage dust-proof mechanism, comprise casing (3), rotating shaft (2), described rotating shaft (2) is through described casing (3), and the rotating shaft (2) that is positioned at casing (3) is equipped with blade (1), the rotating shaft (2) at described casing (3) two ends is located to support installation by bearing (9), it is characterized in that: between described bearing (9) and the casing (3) labyrinth-type excluder is installed, the structure of described labyrinth-type excluder is: comprise the moving cover (4) that is installed in the rotating shaft (2), one end of described moving cover (4) is provided with double wedge (11), also comprise cooperates with moving cover (4) install decide cover (7), a described fixed end that overlaps (7) is provided with the groove (12) of the clamping that matches with double wedge (11); One end of described bearing (9) is equipped with bearing plate (6) by fastener, and described fixed cover (7) is installed on the bearing plate (6) by screw (8); Be positioned at flange (5) also is installed on the bearing plate (6), described flange (5) links to each other with casing (3) one ends.
2. labyrinth type as claimed in claim 1 is cut leakage dust-proof mechanism, it is characterized in that: the structure of described moving cover (4) is: described moving cover (4) becomes terraced structure, and its middle part has the first through hole (10).
3. labyrinth type as claimed in claim 1 is cut leakage dust-proof mechanism, it is characterized in that: the structure of described fixed cover (7) is: described fixed cover (7) middle part has the second through hole (14), has a plurality of screw holes (13) on the anchor ring of described fixed cover (7).
4. labyrinth type as claimed in claim 1 is cut leakage dust-proof mechanism, it is characterized in that: the orthogonal structure of double wedge (11) of described moving cover (4) one ends.
5. labyrinth type as claimed in claim 1 is cut leakage dust-proof mechanism, it is characterized in that: described flange (5) is welded on bearing plate (6) and the casing (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320186964 CN203199573U (en) | 2013-04-15 | 2013-04-15 | Labyrinth type leakage stoppage dustproof mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320186964 CN203199573U (en) | 2013-04-15 | 2013-04-15 | Labyrinth type leakage stoppage dustproof mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203199573U true CN203199573U (en) | 2013-09-18 |
Family
ID=49143706
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320186964 Expired - Fee Related CN203199573U (en) | 2013-04-15 | 2013-04-15 | Labyrinth type leakage stoppage dustproof mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203199573U (en) |
-
2013
- 2013-04-15 CN CN 201320186964 patent/CN203199573U/en not_active Expired - Fee Related
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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 |
Granted publication date: 20130918 Termination date: 20150415 |
|
| EXPY | Termination of patent right or utility model |