CN205978443U - Novel grinder roll assembly is sealed device - Google Patents
Novel grinder roll assembly is sealed device Download PDFInfo
- Publication number
- CN205978443U CN205978443U CN201620945790.5U CN201620945790U CN205978443U CN 205978443 U CN205978443 U CN 205978443U CN 201620945790 U CN201620945790 U CN 201620945790U CN 205978443 U CN205978443 U CN 205978443U
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- Prior art keywords
- seal
- gland
- axle sleeve
- grinding roller
- face
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- Sealing Devices (AREA)
- Rolling Contact Bearings (AREA)
- Sealing Of Bearings (AREA)
Abstract
The utility model discloses a novel grinder roll assembly is sealed device, include gland and axle sleeve to grinder roll sleeve lower extreme antifriction bearing location, the gland is installed in the grinder roll sleeve bottom, the axle sleeve rises tightly epaxially at the grinding roller, be equipped with the seal structure of protection bearing between gland and the axle sleeve, seal structure includes by fitting the spacing seal receptacle of lock nut on the axle sleeve soon, set up respectively between the relative terminal surface of gland and seal receptacle and form end face seal on, lower floating oil seal, the oil storage tank has been seted up on the gland of floating oil seal top, be provided with the end face seal circle between the gland in the floating oil seal outside and the terminal surface of seal receptacle, form axial seal through stair structure between the axle sleeve of floating oil seal below and the seal receptacle. The utility model discloses a floating oil seal's end face seal and stair structure's axial seal, encapsulated situation is lasting, and the trapped fuel volume is chronic to effectively prevent the entering of dust and the loss of oil with the cooperation of end face seal circle, only needed refuel once in one month, significantly reduced to grinder roll assembly's maintenance.
Description
Technical field
This utility model is related to flour mill component structural, specially a kind of new grinding roller assembly sealing device.
Background technology
For ensureing the sealing effectiveness of the grinding roller sleeve lower bearing position of grinding roller of wheat flour-milling assembly, Authorization Notice No. is
CN201300077Y's《Grinding mill maintenance-free grinding roller assembly apparatus》Utility model patent is carried out to traditional labyrinth seal structure
Transformation, employs the mechanical seal structure of axial direction and end face, so that stationary ring is contacted with rotating ring holding in running, and
With framework type sealing ring cooperation thus preventing dust to enter lower bearing position, to maintain the normal operating conditions of grinding roller.
Described《Grinding mill maintenance-free grinding roller assembly apparatus》Sealing structure the sealing of dust is had significantly compared with traditional scheme
Degree improve, but for sealing structure oil storage function fail perfect because the upper end of oil storage tank is provided with skeleton-type oil seal, grinding roller
After assembly work runs a period of time, oil storage tank oil-free is supplemented, and can cause stationary ring and rotation interannular dry grinding abrasion, work as rotating ring
Elastic compensating amount when can not compensate wear extent, stationary ring forms gap, grinding roller assembly seal failure with rotation interannular, leads to powder
Dirt enters and oily loss.
Therefore, described《Grinding mill maintenance-free grinding roller assembly apparatus》In structure, to the refueling time of grinding roller sleeve lower bearing position
Need a week once, production is affected.
Utility model content
For the deficiencies in the prior art, technical problem to be solved in the utility model is to propose one kind effectively to prevent powder
Dirt enters lower bearing position and keeps the new grinding roller assembly sealing device of trapped fuel amount.
Can solve the problem that the new grinding roller assembly sealing device of above-mentioned technical problem, its technical scheme is included to grinding roller sleeve lower end
The gland of rolling bearing positioning on shaft of grinding roller and axle sleeve, described gland is installed on grinding roller sleeve bottom, and described axle sleeve tensioner is in mill
On roll shaft, be provided between gland and axle sleeve protection rolling bearing sealing structure, except that described sealing structure include by
The spacing seal receptacle of the locking nut that is combined on axle sleeve, is respectively arranged with phase interaction between the gland end face relative with seal receptacle
With forming the upper and lower float grease seal (compensating with axial elasticity) of end face seal, the gland above float grease seal offers storage
Oil groove, is provided with end-face seal ring between the gland outside float grease seal and the end face of seal receptacle；Axle sleeve below float grease seal
And seal receptacle between, axial seal is formed by ledge structure.
For improving axial seal effect further, it is provided with O-shaped between the seal receptacle below described ledge structure and axle sleeve
Sealing ring.
For effectively preventing entering and oily loss of dust, the top of described seal receptacle is matched with the bottom that gland bottom opens up
Kong Zhong.
Further it is designed as, the seal receptacle outer circumference surface matching with gland bottom outlet is provided with dust to postpartum mastitis
Air discharge structure.
The beneficial effects of the utility model：
1st, this utility model new grinding roller assembly sealing device is using the end face of the float grease seal compensating with axial elasticity
The axial seal that sealing and ledge structure and O-ring seal are constituted, persistently, the trapped fuel amount retention time is long for sealing state, and with
End-face seal ring cooperation effectively prevents the loss entering oil of dust.
2nd, this utility model only needs refuel once for one month, greatly reduces the maintenance to grinding roller assembly.
Brief description
Fig. 1 is a kind of structural representation of embodiment of this utility model.
Figure number identifies：1st, grinding roller sleeve；2nd, shaft of grinding roller；3rd, rolling bearing；4th, gland；5th, axle sleeve；6th, seal receptacle；7th, locking screw
Female；8th, float grease seal；9th, end-face seal ring；10th, air discharge structure；11st, O-ring seal；12nd, oil storage tank.
Specific embodiment
Illustrated embodiment is described further to the technical solution of the utility model below in conjunction with the accompanying drawings.
This utility model new grinding roller assembly sealing device, including to the rolling bearing 3 on grinding roller sleeve 1 lower end shaft of grinding roller 2
The gland 4 of positioning and axle sleeve 5, described gland 4 bolt is installed on grinding roller sleeve 1 bottom (limiting the outer ring of rolling bearing 3), described
Axle sleeve 5 tensioner (limits the inner ring of rolling bearing 3) on shaft of grinding roller 2, sets between the outer circumference surface of the endoporus of gland 4 and axle sleeve 5
There is the sealing structure of protection rolling bearing 3, as shown in Figure 1.
Described sealing structure includes seal receptacle 6, float grease seal 8, end-face seal ring 9 and O-ring seal 11, described seal receptacle
6 are set on axle sleeve 5 and are forced by the locking nut 7 of threaded engagement on axle sleeve 5 and tight pass through between axle sleeve 5 and seal receptacle 6 middle part
The restriction site that ledge structure (formation axial seal) is formed, the top of seal receptacle 6 is matched with the bottom outlet that gland 4 bottom opens up
In (more than the endoporus of gland 4), inside described gland 4 end face relative with seal receptacle 6, all offer pass-out each inner hole wall
Floating sealing groove, is separately installed with, in gland 4 and the floating sealing groove of seal receptacle 6, the upper and lower floating oil interacting and being formed end face seal
Envelope 8, gland 4 inner hole wall of upper float grease seal 8 top offers oil storage tank 12, on gland 4 end face of upper float grease seal 8 periphery
Open up seal groove and be provided with the end-face seal ring 9 acting on seal receptacle 6 end face, outside the axle sleeve 5 below described ledge structure
O-ring seal 11 that seal groove being provided with acts on seal receptacle 6 inner hole wall (one or more than two) is opened up on periphery
To strengthen axial sealing effectiveness, seal receptacle 6 outer circumference surface matching with gland 4 bottom outlet is provided with by row from dust to postpartum mastitis
Wind structure 10, as shown in Figure 1.
Claims (4)
1. new grinding roller assembly sealing device, including position to the rolling bearing (3) on grinding roller sleeve (1) lower end shaft of grinding roller (2)
Gland (4) and axle sleeve (5), described gland (4) is installed on grinding roller sleeve (1) bottom, described axle sleeve (5) tensioner on shaft of grinding roller (2),
Be provided between gland (4) and axle sleeve (5) protection rolling bearing (3) sealing structure it is characterised in that：Described sealing structure includes
By the spacing seal receptacle (6) of the locking nut (7) being combined on axle sleeve (5), gland (4) end face relative with seal receptacle (6) it
Between be respectively arranged with interact formed end face seal upper and lower float grease seal (8), on the gland (4) above float grease seal (8)
Offer oil storage tank (12), between the gland (4) outside float grease seal (8) and the end face of seal receptacle (6), be provided with end face seal
Circle (9)；Between axle sleeve (5) below float grease seal (8) and seal receptacle (6), axial seal is formed by ledge structure.
2. new grinding roller assembly sealing device according to claim 1 it is characterised in that：Close below described ledge structure
It is provided with O-ring seal (11) between envelope seat (6) and axle sleeve (5).
3. new grinding roller assembly sealing device according to claim 1 it is characterised in that：The top of described seal receptacle (6)
It is matched with the bottom outlet that gland (4) bottom opens up.
4. new grinding roller assembly sealing device according to claim 3 it is characterised in that：Match with gland (4) bottom outlet
Seal receptacle (6) outer circumference surface on be provided with by air discharge structure (10) from dust to postpartum mastitis.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620945790.5U CN205978443U (en) | 2016-08-25 | 2016-08-25 | Novel grinder roll assembly is sealed device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620945790.5U CN205978443U (en) | 2016-08-25 | 2016-08-25 | Novel grinder roll assembly is sealed device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205978443U true CN205978443U (en) | 2017-02-22 |
Family
ID=58035593
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620945790.5U Active CN205978443U (en) | 2016-08-25 | 2016-08-25 | Novel grinder roll assembly is sealed device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205978443U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108435336A (en) * | 2018-02-09 | 2018-08-24 | 浙江同力重型机械制造有限公司 | A kind of improved structure of grinding roller of vertical mill |
-
2016
- 2016-08-25 CN CN201620945790.5U patent/CN205978443U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108435336A (en) * | 2018-02-09 | 2018-08-24 | 浙江同力重型机械制造有限公司 | A kind of improved structure of grinding roller of vertical mill |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |