CN201314380Y - Dustproof sealing structure of jet mill sorting wheel main axle - Google Patents
Dustproof sealing structure of jet mill sorting wheel main axle Download PDFInfo
- Publication number
- CN201314380Y CN201314380Y CNU2008202220951U CN200820222095U CN201314380Y CN 201314380 Y CN201314380 Y CN 201314380Y CN U2008202220951 U CNU2008202220951 U CN U2008202220951U CN 200820222095 U CN200820222095 U CN 200820222095U CN 201314380 Y CN201314380 Y CN 201314380Y
- Authority
- CN
- China
- Prior art keywords
- wheel main
- main shaft
- separation wheel
- sealing structure
- dust
- 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
Links
Images
Landscapes
- Sealing Using Fluids, Sealing Without Contact, And Removal Of Oil (AREA)
Abstract
The utility model discloses a dustproof sealing structure of a jet mill sorting wheel main axle. The dustproof sealing structure is characterized in that the structure comprises a plurality of magnetic fluid sealing structures sleeved on the sorting wheel main axle from left to right in sequence, wherein, all the magnetic fluid sealing structures are positioned inside a flange plate sleeved on the outer side of the sorting wheel main axle and a layer of non-magnetic circular sleeve is arranged between the magnetic fluid sealing structures and the flange plate. The utility model has the advantages of reasonable structure and good sealing effect, and can thoroughly solve the dustproof sealing problem of the jet mill sorting wheel main axle.
Description
Technical field
The utility model relates to a kind of dust-proof sealing structure, especially relates to a kind of dust-proof sealing structure of airflow milling separation wheel main shaft.
Background technique
In the prior art field, the airflow milling classification mainly relies on the separation wheel of high speed rotating to bring the centrifugal force of powder and newton's viscous suction of discharging air-flow carries out.Proved already, the separation wheel that rotational speed is fast more, diameter is more little is favourable more to the classification of powder, but, because main shaft one end of high speed separation wheel is operated in the mill chamber of malleation slightly, in a single day so fine high hardness metal magnetic seals in the bearing of main shaft inside, just can cause separation wheel speed unstability, cause the granularity of magnet powder skewness and reduce magnetic property; Simultaneously, also can cause accelerated wear test, the locking bearing of separation wheel main shaft bearing, thereby the replacing main shaft bearing that must stop production in actual use, operation is wasted time and energy; In addition, might cause that also accidents such as burning out motor takes place.To sum up, the dust-proof sealing structure of airflow milling separation wheel main shaft seems particularly important.
Existing separation wheel main shaft mainly is by the continuous purge of cleaning pressure, prevents to grind indoor magnetic and enters in the main shaft bearing.But, continuous wearing and tearing along with the main shaft seal end, air gap between Sealing and the main shaft can constantly increase, correspondingly cleaning pressure will diminish gradually, the wearing and tearing of sorting main shaft have so just further been aggravated, the vicious circle that goes round and begins again, magnetic will soon enter in the bearing of main shaft, thereby very easily causes accident.
The model utility content
Technical problem to be solved in the utility model is at above-mentioned deficiency of the prior art, a kind of dust-proof sealing structure of airflow milling separation wheel main shaft is provided, its rational in infrastructure and good sealing effect can thoroughly solve the dust sealing problem of airflow milling separation wheel main shaft.
For solving the problems of the technologies described above, the technical solution adopted in the utility model is: a kind of dust-proof sealing structure of airflow milling separation wheel main shaft, it is characterized in that: form by a plurality of magnetic fluid sealing structures that are sleeved on successively from left to right on the separation wheel main shaft, described a plurality of magnetic fluid sealing structure all is positioned at the flange plate inside that is sleeved on the separation wheel main shaft outside, is provided with the non-magnetic conduction annulus of one deck cover between described magnetic fluid sealing structure and the flange plate.
Described a plurality of magnetic fluid sealing structure is made up of the permanent magnet that is sleeved on a plurality of magnetic conduction annulus on the separation wheel main shaft side by side and be installed between adjacent two magnetic conduction annulus, and described permanent magnet is positioned at the cavity top between adjacent two magnetic conduction annulus.
Described magnetic conduction annulus is the soft iron ring.
Also be set with the sealing jacket layer that one deck soaked the high temperature vacuum grease and had adsorption function on the described separation wheel main shaft, described sealing jacket layer is between the magnetic fluid sealing structure and flange plate of the rightmost side.
Described sealing jacket layer is wool felt or teflon.
Described non-magnetic conduction annulus cover is rubber pipe.
Gap delta=0.05-0.4mm between described magnetic conduction annulus and the separation wheel main shaft, the distance L between the lower edge of described permanent magnet and the separation wheel main shaft=(10-50) * δ.
The utility model compared with prior art has the following advantages, 1, rational in infrastructure, wool felt and magnetic fluid sealing structure that the high temperature vacuum grease was soaked in employing seal, in case the wearing and tearing of the gap between sealing configuration and the separation wheel main shaft become big, the formed magnetic field of magnetic fluid sealing structure just can attract magnetic and accumulate in gap location, thereby turns the gap automatically down to stablize cleaning pressure; Simultaneously, magnetic fluid sealing structure also forms a sect in the magnetic field of above-mentioned gap location, and magnetic is played an effect that intercepts automatically; 2, dust sealing is effective, near the wool felt of airflow milling mill chamber side with a plurality of magnetic fluid sealing structure carries out the multistep dust sealing and utilize the malleation purge to carry out excessive dust sealing, thereby, can thoroughly solve the dust sealing problem of airflow milling separation wheel main shaft; 3, because to adopt wool felt and a plurality of magnet fluid sealing layer to carry out multiple dustproof preventing that magnetic from entering in the bearing of separation wheel main shaft, thereby prolong the life-span of main shaft bearing greatly, made accident rate also reduce significantly.
Below by drawings and Examples, the technical solution of the utility model is described in further detail.
Description of drawings
Fig. 1 is a structural representation of the present utility model.
Description of reference numerals:
1-separation wheel main shaft; 2-magnetic conduction annulus; 3-permanent magnet;
4-external shaft sleeve pipe; 5-flange plate; 6-wool felt;
7-rubber pipe; 9-air flue.
Embodiment
As shown in Figure 1, the utility model is made up of a plurality of magnetic fluid sealing structures that are sleeved on successively from left to right on the separation wheel main shaft 1, described a plurality of magnetic fluid sealing structure all is positioned at flange plate 5 inside that are sleeved on separation wheel main shaft 1 outside, be provided with the non-magnetic conduction annulus of one deck cover between described magnetic fluid sealing structure and the flange plate 5, and flange plate 5 is sleeved on external shaft sleeve pipe 4 inside.Wherein, described a plurality of magnetic fluid sealing structure is made up of the permanent magnet 3 that is sleeved on a plurality of magnetic conduction annulus 2 on the separation wheel main shaft 1 side by side and be installed between adjacent two magnetic conduction annulus 2, described permanent magnet 3 is positioned at the cavity top of 2 of adjacent two magnetic conduction annulus, has gap delta between described magnetic conduction annulus 2 and the separation wheel main shaft 1.In addition, also be set with the sealing jacket layer that one deck soaked the high temperature vacuum grease and had adsorption function on the described separation wheel main shaft 1, described sealing jacket layer is between the magnetic fluid sealing structure and flange plate 5 of the rightmost side.And described sealing jacket layer is a wool felt 6, in the practice, also can use teflon to replace wool felt 6.The air flue of offering in the flange plate 59 is relative with wool felt 6, has a malleation owing to be arranged in the airflow milling mill chamber on described magnetic fluid sealing structure right side, and for balance pressure, then can add a positive pressure in the internal cavities of flange plate 5 by air flue 9.
In the present embodiment, the quantity of described magnetic fluid sealing structure is 3, these 3 magnetic fluid sealing structures are made up of 3 permanent magnets 3 that are sleeved on 4 magnetic conduction annulus 2 on the separation wheel main shaft 1 side by side and be installed between adjacent two magnetic conduction annulus 2, described permanent magnet 3 is positioned at the cavity top of 2 of adjacent two magnetic conduction annulus, there is gap delta between described magnetic conduction annulus 2 and the separation wheel main shaft 1, wherein, described gap delta=0.05-0.4mm, the distance L between the lower edge of described permanent magnet 3 and the separation wheel main shaft 1=(10-50) * δ.In the actual using process,, tackle the distance L that exists between magnetic conduction annulus 2 and the separation wheel main shaft 1 between gap delta and permanent magnet 3 lower edges and the separation wheel main shaft 1 mutually and adjust according to the diameter of separation wheel main shaft 1.In the using process, in case gap between magnetic conduction annulus 2 and the separation wheel main shaft 1 and flange plate 5 and and separation wheel main shaft 1 between gap wearing and tearing become big, the formed magnetic field of magnetic fluid sealing structure just can attract magnetic and accumulate in gap location, thereby turns the gap automatically down to stablize cleaning pressure; Simultaneously, magnetic fluid sealing structure also forms a sect in the magnetic field of above-mentioned gap location, and magnetic is played an effect that intercepts automatically.In addition, described magnetic conduction annulus 2 is the soft iron ring, but not magnetic conduction annulus cover is rubber pipe 7.
The above; it only is preferred embodiment of the present utility model; be not that the utility model is imposed any restrictions; everyly any simple modification that above embodiment did, change and equivalent structure are changed, all still belong in the protection domain of technical solutions of the utility model according to the utility model technical spirit.
Claims (7)
1. the dust-proof sealing structure of an airflow milling separation wheel main shaft, it is characterized in that: form by a plurality of magnetic fluid sealing structures that are sleeved on successively from left to right on the separation wheel main shaft (1), described a plurality of magnetic fluid sealing structure all is positioned at flange plate (5) inside that is sleeved on separation wheel main shaft (1) outside, is provided with the non-magnetic conduction annulus of one deck cover between described magnetic fluid sealing structure and the flange plate (5).
2. according to the dust-proof sealing structure of the described a kind of airflow milling separation wheel main shaft of claim 1, it is characterized in that: described a plurality of magnetic fluid sealing structures are made up of the permanent magnet (3) that is sleeved on a plurality of magnetic conduction annulus (2) on the separation wheel main shaft (1) side by side and be installed between adjacent two magnetic conduction annulus (2), and described permanent magnet (3) is positioned at the cavity top between adjacent two magnetic conduction annulus (2).
3. according to the dust-proof sealing structure of the described a kind of airflow milling separation wheel main shaft of claim 2, it is characterized in that: described magnetic conduction annulus (2) is the soft iron ring.
4. according to the dust-proof sealing structure of claim 1,2 or 3 described a kind of airflow milling separation wheel main shafts, it is characterized in that: also be set with the sealing jacket layer that one deck soaked the high temperature vacuum grease and had adsorption function on the described separation wheel main shaft (1), described sealing jacket layer is positioned between the magnetic fluid sealing structure and flange plate (5) of the rightmost side.
5. according to the dust-proof sealing structure of the described a kind of airflow milling separation wheel main shaft of claim 4, it is characterized in that: described sealing jacket layer is wool felt (6) or teflon.
6. according to the dust-proof sealing structure of claim 1,2 or 3 described a kind of airflow milling separation wheel main shafts, it is characterized in that: described non-magnetic conduction annulus cover is rubber pipe (7).
7. according to the dust-proof sealing structure of the described a kind of airflow milling separation wheel main shaft of claim 2, it is characterized in that: the gap delta=0.05-0.4mm between described magnetic conduction annulus (2) and the separation wheel main shaft (1), the distance L between the lower edge of described permanent magnet (3) and the separation wheel main shaft (1)=(10-50) * δ.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008202220951U CN201314380Y (en) | 2008-10-27 | 2008-10-27 | Dustproof sealing structure of jet mill sorting wheel main axle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008202220951U CN201314380Y (en) | 2008-10-27 | 2008-10-27 | Dustproof sealing structure of jet mill sorting wheel main axle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201314380Y true CN201314380Y (en) | 2009-09-23 |
Family
ID=41126174
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008202220951U Expired - Fee Related CN201314380Y (en) | 2008-10-27 | 2008-10-27 | Dustproof sealing structure of jet mill sorting wheel main axle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201314380Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106352098A (en) * | 2015-07-15 | 2017-01-25 | 霓达株式会社 | Industrial sealing component and sealing device |
-
2008
- 2008-10-27 CN CNU2008202220951U patent/CN201314380Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106352098A (en) * | 2015-07-15 | 2017-01-25 | 霓达株式会社 | Industrial sealing component and sealing device |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN202846371U (en) | Direct-connection shot blasting machine | |
| CN101539166B (en) | Magnetic suspension bearing | |
| CN201314380Y (en) | Dustproof sealing structure of jet mill sorting wheel main axle | |
| CN201283311Y (en) | Double-dust seal structure of jet mill sorting wheel main shaft | |
| CN202031994U (en) | Labyrinth-type bearing isolator | |
| CN201650836U (en) | Mechanical seal for slurry pump | |
| CN201313068Y (en) | Double-dustproof sealing structure of jet mill sorting wheel main axle | |
| CN203702666U (en) | Centrifugal pump cooling dustproof disk | |
| CN201277326Y (en) | Double-dust sealing structure for principal shaft of jet mill separating wheel | |
| CN204941954U (en) | A kind of three lip oil sealing sealing systems for Roots pump | |
| CN208503482U (en) | A kind of Airlessly sealed device of high-speed main spindle case labyrinth type of multi-line cutting machine | |
| CN2419423Y (en) | Single end face external mounting type magnetic mechanical seal | |
| CN201487248U (en) | Eccentric liner type wear-resistant dust-laden gas butterfly valve | |
| CN206785709U (en) | A kind of shaft extension sealing structure for multistage centrifugal blower | |
| CN206332542U (en) | A kind of sealing device of high-speed electric expreess locomotive | |
| CN201802872U (en) | Shaft end sealing ring for concrete mixer | |
| CN201728132U (en) | Sealing device of vertical grinder roll bearing | |
| CN206458829U (en) | A kind of rotary shaft labyrinth type gas sealing mechanism | |
| CN203560148U (en) | Sealing structure of sand pump | |
| CN205136016U (en) | A magnetic force seal structure for lobe pump drive end | |
| CN201874876U (en) | Sealing structure of fan shaft | |
| CN203130524U (en) | Horizontal type blocking-free sand sucking pump | |
| CN204357763U (en) | A kind of shaft seal structure | |
| CN203892259U (en) | Wear-resistant fan | |
| CN203339885U (en) | Waterproof maze structure on permanent magnet speed regulator |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20090923 Termination date: 20111027 |