CN104108572A - Labyrinth leakage-intercepting dust prevention mechanism - Google Patents
Labyrinth leakage-intercepting dust prevention mechanism Download PDFInfo
- Publication number
- CN104108572A CN104108572A CN201310133947.5A CN201310133947A CN104108572A CN 104108572 A CN104108572 A CN 104108572A CN 201310133947 A CN201310133947 A CN 201310133947A CN 104108572 A CN104108572 A CN 104108572A
- Authority
- CN
- China
- Prior art keywords
- rotating shaft
- bearing
- labyrinth
- casing
- tank
- 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.)
- Pending
Links
Landscapes
- Sealing Using Fluids, Sealing Without Contact, And Removal Of Oil (AREA)
Abstract
A labyrinth leakage-intercepting dust prevention mechanism comprises a tank and a rotating shaft. The rotating shaft penetrates the tank, and a blade is mounted on the rotating shaft located inside the tank. The rotating shaft at two ends of the tank is supported and mounted through bearings. A labyrinth sealing device is mounted between each bearing and the tank and structurally comprises a moving sleeve mounted on the rotating shaft and a fixed sleeve mounted and matched with the moving sleeve, convex teeth are arranged at one end of each moving sleeve, and grooves clamped with the convex teeth in a matched manner are formed in one end of each fixed sleeve. A bearing seat plate is mounted at one end of each bearing through a fastener, and each fixed sleeve is mounted on the corresponding bearing seat plate through screws. A flange is further mounted on each bearing seat plate, and connected with one end of the tank. By matched clamping of the convex teeth of the moving sleeves and the grooves of the fixed sleeves, labyrinth seal is formed, sealing effect is good, flowing distance of dust overflowing during screw conveying is increased, reliability is good, the bearings are protected, and service lives of the bearings are prolonged.
Description
Technical field
The present invention relates to sealing arrangement, 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, good flowing properties, its physical property is dry smooth, good flowing properties, has gap to scurry out.
Spiral feeder structure of the prior art, by helicallobe, rotate material is constantly carried, the rotating shaft two ends of helicallobe are installed installs by bearings, the sealing of bearing adopts seal ring or tightening seal washer sealing, in use, fine powder easily enters in bearing, causes grease emulsion deterioration, inefficacy, thereby cause bearing because of bad lubricated damage, shorten bearing service life.
Summary of the invention
The applicant is unreliable for adopting the sealing of seal ring, tightening seal washer in 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 costs.
The technical solution adopted in the present invention 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 provided with blade, rotating shaft place of described tank ends is installed by bearings, between described bearing and casing, labyrinth-type excluder is installed, the structure of described labyrinth-type excluder is: comprise the moving cover being installed in rotating shaft, one end of described moving cover is provided with double wedge, also comprise with moving cover and coordinate the cover of determining of installing, one end of described fixed cover is provided with the groove of the clamping that matches with double wedge; One end of described bearing is provided with bearing plate by fastener, and described fixed cover is installed on bearing plate by screw; Be positioned on bearing plate flange is also installed, described flange is connected with casing one end.
Further improvement as technique scheme:
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, on the anchor ring of described fixed cover, has a plurality of screw holes.
The orthogonal structure of double wedge of described moving cover one end.
Described flange welding is on bearing plate and casing.
Beneficial effect of the present invention is as follows:
Compact conformation of the present invention 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 in helical feed, dust is altered outward; the flow direction that repeatedly dust is altered in the changes of 180 degree outward makes outer resistance of altering very big, has stoped the outer of dust to be altered, good reliability; protection bearing, the service life of prolongation bearing.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention.
Fig. 2 is the partial enlarged drawing of A portion in Fig. 1.
Fig. 3 is the structural representation of the moving cover of the present invention.
Fig. 4 is the structural representation that the present invention 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 invention 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 provided with blade 1, rotating shaft 2 places at casing 3 two ends are supported and are installed by bearing 9, between bearing 9 and casing 3, labyrinth-type excluder is installed, the structure of labyrinth-type excluder is: comprise the moving cover 4 being installed in rotating shaft 2, one end of moving cover 4 is provided with double wedge 11, also comprise coordinates installation with moving cover 4 determine cover 7, surely overlap the groove 12 that one end of 7 is provided with the clamping that matches with double wedge 11; One end of bearing 9 is provided with bearing plate 6 by fastener, surely overlaps 7 and is installed on bearing plate 6 by screw 8; Be positioned on bearing plate 6 flange 5 is also installed, flange 5 is connected with casing 3 one end; Flange 5 is welded on bearing plate 6 and casing 3.
As shown in Figure 3, the structure of moving cover 4 is: 4 one-tenth terraced structures of moving cover, and its middle part has the first through hole 10, and for being installed on rotating shaft 2, moving cover 4 is installed in rotating shaft 2 by key (not marking in figure).The orthogonal structure of double wedge 11 of moving cover 4 one end.
As shown in Figure 4, surely overlap 7 structure and be: surely overlap 7 middle parts and have the second through hole 14, for installing and rotating shaft 2, surely overlap on 7 anchor ring and have a plurality of screw holes 13.
Compact conformation of the present invention, by utilizing the double wedge 11 of moving cover 4 to coordinate clamping with the groove 12 that surely overlaps 7, forms labyrinth seal, good sealing effect, protection bearing 9.
More than describing is explanation of the invention, is not the restriction to invention, and limited range of the present invention, referring to claim, within protection scope of the present invention, can be done any type of modification.
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 provided with blade (1), the rotating shaft (2) at described casing (3) two ends is located to be supported and installed by bearing (9), it is characterized in that: between described bearing (9) and casing (3), labyrinth-type excluder is installed, the structure of described labyrinth-type excluder is: comprise the moving cover (4) being installed in rotating shaft (2), one end of described moving cover (4) is provided with double wedge (11), also comprise coordinates installation with moving cover (4) determine cover (7), one end of described fixed cover (7) is provided with the groove (12) of the clamping that matches with double wedge (11), one end of described bearing (9) is provided with bearing plate (6) by fastener, and described fixed cover (7) is installed on bearing plate (6) by screw (8), be positioned on bearing plate (6) flange (5) is also installed, described flange (5) is connected with casing (3) one end.
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), on the anchor ring of described fixed cover (7), has a plurality of screw holes (13).
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 end.
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 casing (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310133947.5A CN104108572A (en) | 2013-04-16 | 2013-04-16 | Labyrinth leakage-intercepting dust prevention mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310133947.5A CN104108572A (en) | 2013-04-16 | 2013-04-16 | Labyrinth leakage-intercepting dust prevention mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104108572A true CN104108572A (en) | 2014-10-22 |
Family
ID=51705605
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310133947.5A Pending CN104108572A (en) | 2013-04-16 | 2013-04-16 | Labyrinth leakage-intercepting dust prevention mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104108572A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105752620A (en) * | 2016-03-30 | 2016-07-13 | 江苏鑫三和机械有限公司 | Double-shaft humidifying conveyor |
-
2013
- 2013-04-16 CN CN201310133947.5A patent/CN104108572A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105752620A (en) * | 2016-03-30 | 2016-07-13 | 江苏鑫三和机械有限公司 | Double-shaft humidifying conveyor |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN204096552U (en) | Circular tube shaped belt conveyer torsion detecting device | |
| CN104108572A (en) | Labyrinth leakage-intercepting dust prevention mechanism | |
| CN203199573U (en) | Labyrinth type leakage stoppage dustproof mechanism | |
| CN203199572U (en) | Semi-labyrinth type leakage interception and dust prevention mechanism | |
| CN104108573A (en) | Semi-labyrinth type leak-stopping and dust prevention mechanism | |
| CN203926761U (en) | A kind of for lining plate of coal grinder bolt seal assembly | |
| CN203926119U (en) | A kind of large-diameter tandem double mechanical seal | |
| CN207219239U (en) | A kind of waterproof solar controller for road lamp | |
| CN103523476A (en) | Sealing device of auger mechanism | |
| CN203529319U (en) | Sealing device of auger mechanism | |
| CN203836197U (en) | Sealing ring with openings | |
| WO2017088779A1 (en) | Oil seal installation structure for use in washing machines, and washing machine | |
| CN204162012U (en) | A kind of transition roller | |
| CN204211072U (en) | Preventing side running of belt conveyer carrying roller end seal | |
| CN203214590U (en) | Single-direction thrust ball bearing | |
| CN105605109B (en) | The sensor integration sliding ring type bearing arrangement of angular domain vibration signal can be obtained | |
| CN203581859U (en) | Screw conveyer for ultrafine nano calcium carbonate powder | |
| CN205587124U (en) | Coal pulverizer sealing device with reduce coal pulverizer air leakage coefficient function | |
| CN204829957U (en) | Guide pulley in bearing is external | |
| CN204560127U (en) | Wiring interposer substrate installed by a kind of components and parts | |
| CN203784284U (en) | Sealing ring with anti-rotation groove | |
| CN204523189U (en) | Cement grinding mill entrance lock | |
| CN204384300U (en) | A kind of feeder protection mechanism | |
| CN205298548U (en) | Novel swivel joint of central authorities | |
| CN202220853U (en) | Sealing device of stirring shaft |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20141022 |