CN2254975Y - Air tight means for main shaft of crusher's sorting wheel - Google Patents
Air tight means for main shaft of crusher's sorting wheel Download PDFInfo
- Publication number
- CN2254975Y CN2254975Y CN 96229128 CN96229128U CN2254975Y CN 2254975 Y CN2254975 Y CN 2254975Y CN 96229128 CN96229128 CN 96229128 CN 96229128 U CN96229128 U CN 96229128U CN 2254975 Y CN2254975 Y CN 2254975Y
- Authority
- CN
- China
- Prior art keywords
- main shaft
- bearing
- pressurized air
- shredder
- seat
- 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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- Mounting Of Bearings Or Others (AREA)
- Crushing And Pulverization Processes (AREA)
Abstract
The utility model relates to an air tight device for a main shaft of a grading wheel of a disintegrator, which is characterized in that the utility model comprises a grading wheel (1) arranged in an inner cavity of a barrel body (5) of a disintegrator, a main shaft (8) connected with the grading wheel, a bearing whose inner ring is fixed on the main shaft (8) and a bearing supporting seat (9) fixedly connected with an outer ring of the bearing. A contact gap between a movable sealing ring (2) and a fixing sealing ring (3) is communicated with a compressed air source. The utility model can prevent powder entering the bearing from the gaps of the sealing rings, and can be used in chemical industries and medicine industries.
Description
The utility model relates to a kind of shredder.
In the prior art, separating the powder that reaches grinding particle size generally is to adopt grading wheel, because grading wheel is arranged in the shredder staving, and is flooded with pressurized gas in the shredder staving, so the main shaft of grading wheel and the sealing between the outside are more scabrous problems always.Generally speaking, between the main shaft of grading wheel and the bearing support seat be the effect that adopts dynamic seal ring and static seal circle to match and not only seal but also main shaft is rotated to reach.But, because gas pressure is higher in the shredder staving, in the bearing below many powder can enter in the gap between the static and dynamic sealing of the effect lower edge of pressure, causes bearing to stop up and can't work, main shaft also can't rotate again.
The purpose of this utility model is to provide a kind of main shaft gas sealing mechanism that can stop the interior powder of shredder staving by the shredder grading wheel in gap between dynamic seal ring and the static seal circle.
The technical solution of the utility model is: it comprises the grading wheel that is arranged in the mill barrels intracoelomic cavity, the main shaft that is connected with the axis of grading wheel, interior ring is fixed in the bearing on the main shaft, support seat with the bearing that outer race is fixedly connected, described bearing support seat and shredder staving are rigidly connected, be fixed with dynamic seal ring on the main shaft on described bearing top, the static seal circle of sliding contact of matching with dynamic seal ring is fixedlyed connected with sealing seat, sealing seat and shredder staving are rigidly connected, and described dynamic seal ring is connected with source of compressed air with contact gap between the static seal circle.The pressure of the source of compressed air here should can enter in the shredder staving through the contact gap between dynamic seal ring and the static seal circle with the pressurized gas that guarantees source of compressed air greater than the pressure in the mill barrels intracoelomic cavity, thereby stops powder to enter this gap.
The utility model compared with prior art has following advantage:
(1). the contact gap between described dynamic seal ring and the static seal circle is with after source of compressed air is communicated with, powder is oppositely entered in the shredder staving, thereby thoroughly stoped powder to enter in the bearing of below through this gap, prolonged the working life of bearing, the noise of machine, vibration all greatly reduce.
(2). pressurized air can be taken away the heat that dynamic and static seal ring friction is produced flowing of described gap, has solved the cooling difficult problem of static and dynamic sealing circle, makes the sealing effect of seal ring be guaranteed that prolonged working life.
The utility model will be further described below in conjunction with drawings and Examples:
Accompanying drawing is structure master's sectional view of the present utility model; Wherein:
[1]. grading wheel; [2]. dynamic seal ring; [3]. the static seal circle; [4]. annular cooling chamber; [5]. the shredder staving; [6]. the pressurized air hand-hole; [7]. bearing; [8]. main shaft; [9]. bearing is supported seat; [10]. jacket pipe; [11]. bearing; [12]. the ring casing cooling chamber; [13]. pressurized air portals; [14]. screw; [15]. gland; [16]. belt pulley; [17]. the pressurized air hand-hole; [18]. the impeller joint sleeve; [19]. sealing seat.
Embodiment: it comprises the grading wheel [1] that is arranged in shredder staving [5] inner chamber, the main shaft [8] that is connected with the axis of grading wheel, interior ring is fixed in the bearing on the main shaft [8], support seat [9] with the bearing that outer race is fixedly connected, described bearing supports seat [9] and shredder staving [5] to be rigidly connected, be fixed with dynamic seal ring [2] on the main shaft [8] on described bearing top, the static seal circle [3] of sliding contact of matching with dynamic seal ring [2] is fixedlyed connected with sealing seat [19], sealing seat [19] is rigidly connected with shredder staving [5], here because bearing is supported seat [9], shredder staving [5], sealing seat [19] all is rigidly connected to together, in three parts of Gu Jingmifengquan [3] and this any fixedlyed connected and all belonged to equivalence and replace, visual concrete condition is selected, and it only is a kind of of embodiment that above-mentioned static seal circle [3] is fixedlyed connected with sealing seat [19].Described dynamic seal ring [2] is connected with source of compressed air with contact gap between the static seal circle [3].Described outer race and bearing are supported to be provided with annular cooling chamber between the seat [9], and described annular cooling chamber is connected with source of compressed air.Described main shaft [8] and bearing are supported to be provided with three bearings between the seat [9], and two bearings [7] wherein are arranged at the top of main shaft [8], and a bearing [11] is arranged at the bottom of main shaft [8].Described bearing supports that seat [9] is provided with pressurized air hand-hole [17] and pressurized air portals [13], this pressurized air hand-hole [17] and pressurized air portal [13] all be connected with annular cooling chamber [12] outside the bearing [11]; Described bearing supports seat [9] to be provided with pressurized air hand-hole [6], and this pressurized air hand-hole [6] is connected with two annular cooling chambers [4] in two bearings [7] outside; Described annular cooling chamber [4] and dynamic seal ring [2] are connected with contact gap between the static seal circle [3]; Described pressurized air portal [13] and pressurized air hand-hole [6] pipeline connection, described pressurized air hand-hole [17] is connected with source of compressed air.Like this, source of compressed air earlier compressed air hand-hole [17] enters annular cooling chamber [12], compressed air portal [13] flow out, so can cool off bearing [11], the heat of its generation is taken away by air-flow; The pressurized air compressed more by the road air hand-hole of air-flow [6] that [13] come out that portals enters two annular cooling chambers [4], for bearing [7] cools off; The gap of air-flow between dynamic seal ring [2] and static seal circle [3] of being come out by annular cooling chamber [4] enters in shredder staving [5] inner chamber, forms a complete air-flow path.Gland [15] is supported to fixedly connected with screw [14] between the seat [9] with bearing, is driven main shaft [8] pivoted pulley [16] and coaxial being connected of main shaft [8].Main shaft [8] and bearing are supported also to be provided with jacket pipe [10] between the seat [9], are beneficial to assembling.
Claims (4)
1. the main shaft gas sealing mechanism of a shredder grading wheel, it is characterized in that: it comprises the grading wheel [1] that is arranged in shredder staving [5] inner chamber, the main shaft [8] that is connected with the axis of grading wheel, interior ring is fixed in the bearing on the main shaft [8], support seat [9] with the bearing that outer race is fixedly connected, described bearing supports seat [9] and shredder staving [5] to be rigidly connected, be fixed with dynamic seal ring [2] on the main shaft [8] on described bearing top, the static seal circle [3] of sliding contact of matching with dynamic seal ring [2] is fixedlyed connected with sealing seat [19], sealing seat [19] and shredder staving [5] are rigidly connected, and described dynamic seal ring [2] is connected with source of compressed air with contact gap between the static seal circle [3].
2. the main shaft gas sealing mechanism of shredder grading wheel according to claim 1 is characterized in that: described outer race and bearing are supported to be provided with annular cooling chamber between the seat [9], and described annular cooling chamber is connected with source of compressed air.
3. the main shaft gas sealing mechanism of shredder grading wheel according to claim 1, it is characterized in that: described main shaft [8] and bearing are supported to be provided with three bearings between the seat [9], two bearings [7] wherein are arranged at the top of main shaft [8], and a bearing [11] is arranged at the bottom of main shaft [8].
4. the main shaft gas sealing mechanism according to claim 1 or 2 or 3 described shredder grading wheels is characterized in that: described bearing supports that seat [9] is provided with pressurized air hand-hole [17] and pressurized air portals [13], and this pressurized air hand-hole [17] and pressurized air go out [13] and all is connected with the annular cooling chamber [12] in bearing [11] outside; Described bearing supports seat [9] to be provided with pressurized air hand-hole [6], and this pressurized air hand-hole [6] is connected with two annular cooling chambers [4] in two bearings [7] outside; Described annular cooling chamber [4] and dynamic seal ring [2] are connected with contact gap between the static seal circle [3]; Described pressurized air portal [13] and pressurized air hand-hole [6] pipeline connection, described pressurized air hand-hole [17] is connected with source of compressed air.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 96229128 CN2254975Y (en) | 1996-01-16 | 1996-01-16 | Air tight means for main shaft of crusher's sorting wheel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 96229128 CN2254975Y (en) | 1996-01-16 | 1996-01-16 | Air tight means for main shaft of crusher's sorting wheel |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2254975Y true CN2254975Y (en) | 1997-05-28 |
Family
ID=33906853
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 96229128 Expired - Fee Related CN2254975Y (en) | 1996-01-16 | 1996-01-16 | Air tight means for main shaft of crusher's sorting wheel |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2254975Y (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101949451A (en) * | 2010-10-11 | 2011-01-19 | 云南省机械研究设计院 | Chain sealing device for preventing superfine powder particles from dispersing |
| CN102080728A (en) * | 2009-11-27 | 2011-06-01 | 宁波科宁达工业有限公司 | Pressurized seal device of transmission shaft |
| CN102678934A (en) * | 2012-05-17 | 2012-09-19 | 东莞宏威数码机械有限公司 | Sealed transmission device |
| CN103706293A (en) * | 2013-12-30 | 2014-04-09 | 浙江迦南科技股份有限公司 | Wet mixing granulator with stirring paddle sealing structure in-place cleaning function |
| CN106104113A (en) * | 2014-01-29 | 2016-11-09 | 彻斯特顿公司 | Non-contacting labyrinth seal assembly |
-
1996
- 1996-01-16 CN CN 96229128 patent/CN2254975Y/en not_active Expired - Fee Related
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102080728A (en) * | 2009-11-27 | 2011-06-01 | 宁波科宁达工业有限公司 | Pressurized seal device of transmission shaft |
| CN102080728B (en) * | 2009-11-27 | 2015-09-30 | 宁波科宁达工业有限公司 | A kind of pressurized seal device of transmission shaft |
| CN101949451A (en) * | 2010-10-11 | 2011-01-19 | 云南省机械研究设计院 | Chain sealing device for preventing superfine powder particles from dispersing |
| CN101949451B (en) * | 2010-10-11 | 2012-05-23 | 云南省机械研究设计院 | Chain sealing device for preventing superfine powder particles from dispersing |
| CN102678934A (en) * | 2012-05-17 | 2012-09-19 | 东莞宏威数码机械有限公司 | Sealed transmission device |
| CN103706293A (en) * | 2013-12-30 | 2014-04-09 | 浙江迦南科技股份有限公司 | Wet mixing granulator with stirring paddle sealing structure in-place cleaning function |
| CN103706293B (en) * | 2013-12-30 | 2015-07-08 | 浙江迦南科技股份有限公司 | Wet mixing granulator with stirring paddle sealing structure in-place cleaning function |
| CN106104113A (en) * | 2014-01-29 | 2016-11-09 | 彻斯特顿公司 | Non-contacting labyrinth seal assembly |
| CN106104113B (en) * | 2014-01-29 | 2018-11-06 | 彻斯特顿公司 | Non-contacting labyrinth seal assembly |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |