CN205570445U - Encapsulation of wind compacting is put for flour mill - Google Patents
Encapsulation of wind compacting is put for flour mill Download PDFInfo
- Publication number
- CN205570445U CN205570445U CN201620147609.6U CN201620147609U CN205570445U CN 205570445 U CN205570445 U CN 205570445U CN 201620147609 U CN201620147609 U CN 201620147609U CN 205570445 U CN205570445 U CN 205570445U
- Authority
- CN
- China
- Prior art keywords
- pressure roller
- roller shaft
- bearing cap
- bearing
- radius
- 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.)
- Withdrawn - After Issue
Links
Landscapes
- Rolls And Other Rotary Bodies (AREA)
Abstract
The utility model provides an encapsulation of wind compacting is put for flour mill, includes compression roller axle, bearing, bearing cap, and the tip at the compression roller axle is installed to the bearing cap, and the bearing is installed at the compression roller epaxially, is located the inboard of bearing cap, install the labyrinth bush between bearing cap and the bearing, the labyrinth bush is installed at the compression roller epaxially, the one end of labyrinth bush is equipped with the notch, and the notch becomes the wind pressure room with the compression roller axiform, the fresh air inlet has been seted up at the both ends of compression roller axle, and the exhaust vent is being seted up with the wind pressure room department of contacting to the compression roller axle, the fresh air inlet links to each other with the exhaust vent. The utility model has the characteristics of as follows: 1, it is sealed effectual, adopt the labyrinth seals device, pour into high -pressure wind into in the labyrinth seals device to form a wind chamber, can effectually prevent outside dust to get into, 2, simple structure, adopting the labyrinth bush to be connected with the bearing cap, forming the labyrinth seals device, labyrinth bush and bearing cap are common structure, and assembly between it also is simple arch and being connected of recess, realizes very easily, 3, the live time is long.
Description
Technical field
This utility model relates to a kind of sealing device, particularly a kind of flour mill blast sealing device.
Background technology
Flour mill is a kind of equipment utilizing pressure roller to crush various metals or nonmetallic materials.Along with the economic development of society, the volume of production of the material such as various metals, nonmetal and chemical industry mineral, building materials, cement increases day by day so that needing broken raw material progressively to increase, the kind of flour mill and quantity are also being continuously increased.Owing to flour mill has, crushing effect is good, efficiency high, and is widely used in the industries such as mining industry, chemical industry, thermoelectricity, coal.
Material operationally, is crushed in needing to rely on pressure roller shaft band dynamic pressure roller cylinder outside by flour mill；And conventional broken material is being forcibly fed into in shattering process, can inevitably produce a large amount of dust.If dust enters in roller bearing, the effect of lubricating oil in bearing can be directly affected, thus cause bearing to be destroyed, make whole machine be difficult to smooth and easy operation.
The form that prior art generally uses labyrinth packing to seal realizes the sealing to dust, and packing seal can only realize temporarily sealing: bearing must produce high temperature during long time running, and under the influence of high temperature, be easy to hardening for airtight and watertight padding, thus lost efficacy；Therefore, this mode of packing seal have to be replaced as frequently as filler, adds the workload of workman, reduces the efficiency of production.
In order to solve, the sealing effectiveness that packing seal mode brought is the best, the use time is short, the replacement cycle frequently and safeguards the problems such as inconvenience, the document that many relevant blast seal is disclosed successively, as document CN200986023Y discloses a kind of blast sealing device, by arranging blast sealing device on the grinding roller transverse axis body of coal pulverizer, to ensure that dust is difficult to enter in bearing；This blast sealing device is to increase structural member at Bearing outer and carry blast, the structural member making outside seals dust, and the outer structural parts structure that increases is more complicated, use inconvenience, if and this blast sealing device is arranged on the bearing of high speed rotating, there may exist the risk departed from bearing, thus lose sealing effectiveness.Document CN
202914752 U disclose a kind of Vertical Mill and grinding roller thereof, are provided with wind pressure sealing structure in grinding roller front end, and wind pressure sealing structure constitutes a high pressure chest closed, and then makes dust be difficult to enter by intracavity air pressure higher than the principle of air pressure outside chamber；This mode reliability is strong, the once bad phenomenon leaked air of the sealing property of inflatable chamber, then cannot ensure that intracavity air pressure is higher than air pressure outside chamber, thus be difficult to the function that blast seals.
Utility model content
The purpose of this utility model is, in order to overcome the above-mentioned deficiency of prior art, it is provided that a kind of good sealing effect, simple in construction, good reliability, the flour mill blast sealing device of use time length.
The technical solution of the utility model is: a kind of flour mill blast sealing device, including pressure roller shaft, bearing, bearing cap, bearing cap is arranged on the end of pressure roller shaft, and bearing is arranged in pressure roller shaft, is positioned at the inner side of bearing cap；Being provided with labyrinth bush between described bearing cap and bearing, labyrinth bush is arranged in pressure roller shaft；One end of described labyrinth bush is provided with recess, and recess forms blast room with pressure roller shaft；The two ends of pressure roller shaft offer fresh air inlet, and pressure roller shaft is offering exhaust vent with blast room touching position；Fresh air inlet is connected with exhaust vent.
Labyrinth bush described in the utility model is a kind of axle sleeve, is internally provided with the groove of labyrinth shape.
Further, described fresh air inlet is opened at the axle center of pressure roller shaft, is connected with exhaust vent by air intake duct.
Fresh air inlet is for from outside air intake, and wind, after fresh air inlet enters, flows out from exhaust vent.Owing to the outlet of exhaust vent is positioned in blast room, the wind of outflow fills up rapidly whole blast room so that blast room pressure increases, and forms the blast chamber of a flowing under wind action, it is ensured that outside dust cannot be introduced in blast room.And labyrinth bush is arranged on outside bearing, ensure that external dust cannot invade bearing well.
Further, the inner side of described bearing cap is provided with groove, and the two ends up and down of labyrinth bush offer projection；Projection is arranged in groove, it is achieved labyrinth bush and the connection of bearing cap.
By the protruding connection with groove, labyrinth bush is closely mounted on bearing holder (housing, cover), thus ensure that the installation reliability of labyrinth bush.
Further, described recess and nip drum axle form the blast room of annular, and exhaust vent is opened in the downside of pressure roller shaft, and exhaust vent is through hole or blind hole.When exhaust vent is blind hole, it is indoor that the outlet of exhaust vent only one of which is positioned at blast；When exhaust vent is that through hole is, two outlets of exhaust vent are respectively positioned in blast room.
Further, described bearing cap is two, is symmetrically mounted on the two ends of pressure roller shaft；Pressure roller is arranged between two bearing caps, is positioned at the outside of bearing；The inner side of described bearing cap offers the step for installing pressure roller, is provided with the flange for cutting off pressure roller and labyrinth bush in the middle of step and groove.
Forming airtight space between pressure roller, bearing cap and labyrinth bush, have the flowing wind body transmitted by blast room in this space, the flowing of wind body makes dust cannot be introduced into.
Further, the upper end of described pressure roller shaft both sides is further opened with keyway.
Further, the radius of described fresh air inlet is more than the radius in air intake duct.
Fresh air inlet transmits wind by air intake duct aweather pressure chamber, and when the radius of fresh air inlet is more than air intake duct radius, the blast in air intake duct will be greater than the blast of fresh air inlet so that intake velocity increases, and the blast of blast room is relatively big, it is thus possible to ensure sealing effectiveness well.
Further, the radius of described fresh air inlet is the 10% ~ 20% of pressure roller shaft end face radius.The radius of fresh air inlet is too small, it is likely that cause air intake not smooth, the problem that air intake speed is little, and the radius of fresh air inlet is excessive, then can affect the intensity of pressure roller shaft end；Through test of many times and analysis, the 10% ~ 20% of the radius pressure roll shaft end face radius of fresh air inlet is the most reasonable.
Further, radius is fresh air inlet radius the 40% ~ 60% of described air intake duct；The radius of exhaust vent is the 40% ~ 60% of fresh air inlet radius.
Exhaust vent is directly opened in inside pressure roller shaft, and its radius size directly affects the intensity of air-out efficiency and pressure roller shaft, if radius is the least, then air-out efficiency is less；If radius is too big, then can reduce the intensity of pressure roller shaft.Therefore, with fresh air inlet radius as standard, it is 40% ~ 60% the most reasonable that exhaust vent radius takes fresh air inlet radius.
The shoulder hole for fixing pressure roller is offered on bearing cap described further.
Principle of the present utility model and using method be: install blower fan in the outside of pressure roller shaft, blower fan is connected with the fresh air inlet of pressure roller shaft by ventilation shaft, wind in blower fan, after fresh air inlet enters, flows into exhaust vent by air intake duct, then flows into blast room from exhaust vent.In confined space between labyrinth bush, bearing block and pressure roller, the wind in blower fan enters continuously, thus forms a high-pressure blast chamber, is blocked in beyond bearing by all kinds of being divided into, and effectively protection bearing is not destroyed.
This utility model compared with prior art has a characteristic that
1, good sealing effect；This utility model uses labyrinth gland, injects high-pressure blast, thus form a wind chamber in labyrinth gland, it is possible to the dust outside effective prevention enters.Further, due to blower fan conveying high-pressure wind continuously, wind constantly flows in labyrinth gland, it is possible to ensure the sealing of whole equipment enduringly；
2, simple in construction；This utility model uses labyrinth bush to be connected with bearing cap, forms labyrinth gland, and labyrinth bush and bearing cap are common structure, and the assembling between it is also the simple protruding connection with groove, it is easy to realize.And this utility model offers fresh air inlet and exhaust vent in existing pressure roller shaft, technique is simple, can easily realize；
3, use the time long；This utility model need not other external structure and helps to realize, and in running, have only to blower fan inwardly continually enter wind and can realize, its internal structure is not lost, whole service process energy conservation environmental protection, hereby it is ensured that the lasting use time of equipment.
Below in conjunction with the drawings and specific embodiments, detailed construction of the present utility model is further described.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model；
Fig. 2 is enlarged drawing at A of the present utility model.
In figure: 1 nip drum axle, 2 keyways, 3 fresh air inlets, 4 air intake ducts, 5 bearing caps, 6 labyrinth bush, 7 exhaust vents, 8 pressure rollers, 9 bearings, 51 grooves, 52 steps, 53 flanges, 54 shoulder holes, 61 recesses, 62 is protruding.
Detailed description of the invention
Embodiment
1
As it is shown in figure 1, a kind of flour mill blast sealing device, including pressure roller shaft 1, bearing 9, bearing cap 5, bearing cap 5 is arranged on the end of pressure roller shaft 1, and bearing 9 is arranged in pressure roller shaft 1, is positioned at the inner side of bearing cap 5；Being provided with labyrinth bush 6 between described bearing cap 5 and bearing 9, labyrinth bush 6 is arranged in pressure roller shaft 1；One end of described labyrinth bush 6 is provided with recess 61, and recess 61 and pressure roller shaft 1 form blast room；The two ends of pressure roller shaft 1 offer fresh air inlet 3, and pressure roller shaft 1 is offering exhaust vent 7 with blast room touching position；Fresh air inlet 3 is connected with exhaust vent 7.
Being provided with blower fan in the outside of blast sealing device, blower fan is connected with fresh air inlet 3 by ventilation shaft.
Fresh air inlet 3 is opened at the axle center of pressure roller shaft 1, is connected with exhaust vent 7 by air intake duct 4.
The inner side of bearing cap 5 is provided with groove 51, and the two ends up and down of labyrinth bush 6 offer protruding 62；Protruding 62 are arranged in groove 51, it is achieved labyrinth bush 6 and the connection of bearing cap 5.
Recess 61 and nip drum axle 1 form the blast room of annular, and exhaust vent 7 is opened in the downside of pressure roller shaft 1, and exhaust vent 7 is through hole or blind hole.
Bearing cap 5 is two, is symmetrically mounted on the two ends of pressure roller shaft 1；Pressure roller 8 is arranged between two bearing caps 5, is positioned at the outside of bearing 9；The inner side of described bearing cap 5 offers the step 52 for installing pressure roller 8, is provided with the flange 53 for cutting off pressure roller 8 and labyrinth bush 6 in the middle of step 52 and groove 51；The shoulder hole 54 for fixing pressure roller 8 is offered on bearing cap 5.
The upper end of pressure roller shaft 1 both sides is further opened with keyway 2.
Particularly, the radius of fresh air inlet 3 is the 10% of pressure roller shaft 1 end face radius.
The radius in air intake duct 4 is the 40% of fresh air inlet 3 radius；The radius of exhaust vent 7 is the 40% of fresh air inlet 3 radius.
Embodiment
2
Embodiment 2 is roughly the same with embodiment 1, and their difference is: in example 2, and the radius of fresh air inlet 3 is the 20% of pressure roller shaft 1 end face radius.
The radius in air intake duct 4 is the 60% of fresh air inlet 3 radius；The radius of exhaust vent 7 is the 60% of fresh air inlet 3 radius.
Obviously, those skilled in the art can carry out various change and modification without deviating from spirit and scope of the present utility model to this utility model.So, if these amendments of the present utility model and modification belong within the scope of this utility model claim and equivalent technology thereof, then this utility model is also intended to comprise these change and modification.
Claims (10)
1. a flour mill blast sealing device, including pressure roller shaft (1), bearing (9), bearing cap (5), bearing cap (5) is arranged on the end of pressure roller shaft (1), and bearing (9) is arranged in pressure roller shaft (1), is positioned at the inner side of bearing cap (5)；It is characterized in that: be provided with labyrinth bush (6) between described bearing cap (5) and bearing (9), labyrinth bush (6) is arranged in pressure roller shaft (1)；One end of described labyrinth bush (6) is provided with recess (61), and recess (61) forms blast room with pressure roller shaft (1)；The two ends of pressure roller shaft (1) offer fresh air inlet (3), and pressure roller shaft (1) is offering exhaust vent (7) with blast room touching position；Fresh air inlet (3) is connected with exhaust vent (7).
2. a flour mill blast sealing device as claimed in claim 1, it is characterised in that: described fresh air inlet (3) is opened at the axle center of pressure roller shaft (1), is connected with exhaust vent (7) by air intake duct (4).
3. a flour mill blast sealing device as claimed in claim 1 or 2, it is characterised in that: the inner side of described bearing cap (5) is provided with groove (51), and the two ends up and down of labyrinth bush (6) offer projection (62)；Protruding (62) are arranged in groove (51), it is achieved labyrinth bush (6) and the connection of bearing cap (5).
4. a flour mill blast sealing device as claimed in claim 1 or 2, it is characterized in that: described recess (61) forms the blast room of annular with nip drum axle (1), exhaust vent (7) is opened in the downside of pressure roller shaft (1), and exhaust vent (7) is through hole or blind hole.
5. a flour mill blast sealing device as claimed in claim 4, it is characterised in that: described bearing cap (5) is two, is symmetrically mounted on the two ends of pressure roller shaft (1)；Pressure roller (8) is arranged between two bearing caps (5), is positioned at the outside of bearing (9)；The inner side of described bearing cap (5) offers the step (52) for installing pressure roller (8), is provided with the flange (53) for cutting off pressure roller (8) and labyrinth bush (6) in the middle of step (52) and groove (51).
6. a flour mill blast sealing device as claimed in claim 1 or 2, it is characterised in that: the upper end of described pressure roller shaft (1) both sides is further opened with keyway (2).
7. a flour mill blast sealing device as claimed in claim 1 or 2, it is characterised in that: the radius of described fresh air inlet (3) is more than the radius in air intake duct (4).
8. a flour mill blast sealing device as claimed in claim 7, it is characterised in that: the radius of described fresh air inlet (3) is the 10% ~ 20% of pressure roller shaft (1) end face radius.
9. a flour mill blast sealing device as claimed in claim 8, it is characterised in that: radius is fresh air inlet (3) radius the 40% ~ 60% of described air intake duct (4)；The radius of exhaust vent (7) is the 40% ~ 60% of fresh air inlet (3) radius.
10. a flour mill blast sealing device as claimed in claim 1 or 2, it is characterised in that: offer the shoulder hole (54) for fixing pressure roller (8) on described bearing cap (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620147609.6U CN205570445U (en) | 2016-02-29 | 2016-02-29 | Encapsulation of wind compacting is put for flour mill |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620147609.6U CN205570445U (en) | 2016-02-29 | 2016-02-29 | Encapsulation of wind compacting is put for flour mill |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205570445U true CN205570445U (en) | 2016-09-14 |
Family
ID=56870915
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620147609.6U Withdrawn - After Issue CN205570445U (en) | 2016-02-29 | 2016-02-29 | Encapsulation of wind compacting is put for flour mill |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205570445U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105536936A (en) * | 2016-02-29 | 2016-05-04 | 长沙坚韧机械有限责任公司 | Wind pressure sealing device for pulverizer |
-
2016
- 2016-02-29 CN CN201620147609.6U patent/CN205570445U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105536936A (en) * | 2016-02-29 | 2016-05-04 | 长沙坚韧机械有限责任公司 | Wind pressure sealing device for pulverizer |
| CN105536936B (en) * | 2016-02-29 | 2018-03-20 | 长沙坚韧机械有限责任公司 | A kind of flour mill blast sealing device |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN203906802U (en) | Main shaft sealing structure of plastic high-speed mixing machine | |
| CN206598192U (en) | Grinding machine spindle high pressure air seal structure | |
| CN205570445U (en) | Encapsulation of wind compacting is put for flour mill | |
| CN203009832U (en) | Rotary seal device suitable for high-flow and high-pressure working conditions | |
| CN206813999U (en) | A kind of good airlock suitable for hot and humid environment of air-tightness | |
| CN105536936B (en) | A kind of flour mill blast sealing device | |
| CN103629357B (en) | The sealing mechanism of vane type rotary valve | |
| CN206199420U (en) | wet ball mill sealing structure | |
| CN206064509U (en) | A kind of flour mill air-supply sealing system | |
| CN203124037U (en) | Novel air seal for grinder roll of vertical roller mill | |
| CN101782083B (en) | Sealing device for fan | |
| CN106986190B (en) | Sealing air seal machinery | |
| CN105083884A (en) | Novel rotary sealing valve | |
| CN107738888B (en) | Novel sealing device for roller shaft of belt conveyor under special corrosion-resistant and dust-proof working conditions | |
| CN203162157U (en) | Pneumatic sealing device for crusher | |
| CN206358778U (en) | Do not give fat Novel rotary sealing valve | |
| CN209354541U (en) | A kind of pneumatic on-off valve divergence type gland seal device | |
| CN206072355U (en) | A kind of labyrinth gland for flour mill | |
| CN207981354U (en) | A kind of refuse grinder fixation stationary seal ring soket head cap screw anti-rust structure | |
| CN205526688U (en) | Rotary drum feeder | |
| CN103818725B (en) | Mechanical Sealed Type rotovalve | |
| CN206704200U (en) | Labyrinth sealing type rear end cap axle box forms | |
| CN205413198U (en) | Composite seal device of grinding roller axle | |
| CN206608545U (en) | One kind can limit pretightning force and easy-disassembling-assembling packing seal structure | |
| CN207357238U (en) | A kind of wear-resisting air-tight structure of kibbler roll |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20160914 Effective date of abandoning: 20180320 |
|
| AV01 | Patent right actively abandoned |