CN201300077Y - Grinding mill maintenance-free grinding roller assembly device - Google Patents
Grinding mill maintenance-free grinding roller assembly device Download PDFInfo
- Publication number
- CN201300077Y CN201300077Y CNU2008201134501U CN200820113450U CN201300077Y CN 201300077 Y CN201300077 Y CN 201300077Y CN U2008201134501 U CNU2008201134501 U CN U2008201134501U CN 200820113450 U CN200820113450 U CN 200820113450U CN 201300077 Y CN201300077 Y CN 201300077Y
- Authority
- CN
- China
- Prior art keywords
- grinding roller
- ring
- axle sleeve
- roller assembly
- gland
- 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 - Lifetime
Links
- 238000000227 grinding Methods 0.000 title claims abstract description 67
- 210000004907 gland Anatomy 0.000 claims abstract description 27
- 238000005096 rolling process Methods 0.000 claims abstract description 16
- 238000007789 sealing Methods 0.000 claims description 40
- 235000013312 flour Nutrition 0.000 claims description 16
- 239000000956 alloy Substances 0.000 claims description 3
- 229910045601 alloy Inorganic materials 0.000 claims description 3
- 239000000428 dust Substances 0.000 abstract description 7
- 241000209140 Triticum Species 0.000 description 3
- 235000021307 Triticum Nutrition 0.000 description 3
- 238000003801 milling Methods 0.000 description 3
- 238000012856 packing Methods 0.000 description 3
- 238000009434 installation Methods 0.000 description 2
- 239000003082 abrasive agent Substances 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000008030 elimination Effects 0.000 description 1
- 238000003379 elimination reaction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 229910052500 inorganic mineral Inorganic materials 0.000 description 1
- 230000002045 lasting effect Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 239000011707 mineral Substances 0.000 description 1
- 210000002268 wool Anatomy 0.000 description 1
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- Crushing And Grinding (AREA)
Abstract
The utility model discloses a grinding mill maintenance-free grinding roller assembly device which is matched with the grinding mill; the device is characterized in that a seal structure of the grinding roller device is improved so as to prevent a rolling bearing from being damaged by the dust. The seal structure comprises skeleton seal rings which are arranged from inside to outside between a gland and an axle sleeve, mechanical seals and a self-locking locknut; wherein the mechanical seals are a rotary ring and a stationary ring which are sleeved with the axle sleeve and in friction with each other; the stationary ring is coaxially and fixedly connected with a trumpet-shaped ring rubber spring, and the rotary ring is coaxially and fixedly connected with a ring rubber gasket; after the mechanical seals are locked by a self-locking locknut, the pretightening force of the rubber spring compresses the rotary ring and the stationary ring all along, thereby leading the friction consumption between the rotary ring and the stationary ring to be compensated automatically, effectively preventing the dust from entering, and maintaining the grinding roller assembly device to be in normal operating condition, therefore the failure rate is low, the device is maintenance-free and the service life is at least over 5000 hours.
Description
(1) technical field:
The utility model relates to the flour mill parts, is a kind of non-maintaining grinding roller assembly apparatus of flour mill specifically.
(2) background technology:
Flour mill is a breeze sector application machine the most widely, it is to roll mineral by the centrifugal force that the grinding roller assembly apparatus that hangs produces to become required breeze in running, in the flour mill course of work, the grinding roller assembly apparatus will bear strong impact, vibrations and uneven pressure, this also is not the main cause that causes the grinding roller assembly apparatus to break down, because the grinding roller assembly apparatus is operated in high concentration, dynamically disorderly, in the environment of fine dust, the dustproof inefficacy of grinding roller assembly apparatus is only its main failure cause, so whether grinding roller of wheat flour-milling assembly apparatus dust seal has reliably determined the height of flour mill fault rate.
The rotating manner of grinding roller of wheat flour-milling assembly apparatus is mainly the frame mode of rolling bearing, its structure is roughly: the grinding roller spindle set is in the grinding roller cover, bearing in the grinding roller cover metal (upper position cooperates with the axle journal of grinding roller main shaft, the grinding roller main shaft is stretched downwards outside the grinding roller cover, grinding roller is installed in the lower end of grinding roller main shaft, and associated sealing arrangement for bearings then is arranged between grinding roller cover lower bearing position and the grinding roller.
The common structure of associated sealing arrangement for bearings comprises gland, axle sleeve, self-locking clamp nut and skeleton sealing ring, tetrafluoro friction plate, wool felt etc.; The axle sleeve tensioner is on the grinding roller main shaft between bearing inner race and the grinding roller, gland is sleeved on outside the axle sleeve and with grinding roller cover lower bearing position end face and tightens up installation, the convex step of gland withstands bearing outer ring, what skeleton sealing ring was installed downwards is a tetrafluoro friction plate, felt circle and a tetrafluoro friction plate, and the bottom of last tetrafluoro friction plate is engaged in the self-locking of the special use on the axle sleeve and forces jack panel to compress.From above hermetically-sealed construction as can be seen, because aging and dry shrink of felt circle in the use, the felt circle body is long-pending to be dwindled, lose original tensioner state, dust enters skeleton sealing ring from the increase gap of tetrafluoro friction plate, cause the infringement of skeleton sealing ring, after skeleton sealing ring lost efficacy, dust has finally entered in the rolling bearing, rolling bearing is suffered damage, will change rolling bearing in 2～3 months generally speaking, and just use several hrs when serious, rolling bearing just damages.
(3) utility model content:
At the weak point of above-mentioned grinding roller of wheat flour-milling assembly apparatus, the utility model purpose provides a kind of non-maintaining grinding roller assembly apparatus of flour mill of long service life.
Can realize the non-maintaining grinding roller assembly apparatus of flour mill of above-mentioned purpose; comprise gland and axle sleeve to the rolling bearing location on the grinding roller main shaft of grinding roller cover lower end; gland and grinding roller cover bottom are connected; the axle sleeve tensioner is on the grinding roller main shaft; be provided with the sealing device that rolling bearing is protected between gland and the axle sleeve, different is: described sealing device comprises that skeleton sealing ring, mechanical sealing member and the self-locking of from-inner-to-outer setting force jack panel.
Mechanical seal is a kind of axial end sealing device that can reach sealing effectiveness, the mechanical sealing member that uses in the utility model comprises the axial seal friction pair that is compressed by flexible member, be respectively rotating ring and stationary ring with the axle sleeve suit, the pretightning force of flexible member can make the wear extent between rotating ring and the stationary ring be compensated, elimination is particularly suitable for using as the part seal in the grinding roller assembly apparatus because of the gap that wearing and tearing occur.
Described flexible member is selected horn-like belt rubber spring for use, and the loudspeaker outer shroud of rubber spring forms sealing towards skeleton ring set in axle sleeve and with gland endoporus bottom, and the interior ring of rubber spring is connected with stationary ring is coaxial.
Also comprise ring-shaped rubber pad in the above-mentioned mechanical sealing member, ring-shaped rubber pad after rotating ring with the axle sleeve suit, its top is connected with rotating ring is coaxial, self-locking is forced jack panel to be pressed on rubber blanket bottom and is formed sealing with it.
Design routinely, described skeleton sealing ring is two of interior external position, sets out annular oil storage tank on the gland inner hole wall between the skeleton sealing ring.
Horn-like belt rubber spring and stationary ring, ring-shaped rubber pad and rotating ring can be made the whole series of products that form, use for design.
Stationary ring and rotating ring should select for use high-abrasive material to make, and according to the environment for use characteristics of grinding roller assembly apparatus, can select the production material of carbide alloy as stationary ring and rotating ring for use.
The beneficial effects of the utility model:
Because the utility model sealing device has adopted the unique texture of mechanical seal, in use it forms the stationary ring of axial seal and rotating ring to remain seal clearance constant, sealing state is lasting, enter rolling bearing with skeleton effective dust that prevents that is sealed and matched, keep the normal operating conditions of grinding roller, so grinding roller assembly apparatus fault rate is low, non-maintaining, service life is at least more than 5000 hours.
(4) description of drawings:
Fig. 1 is the structural representation of a kind of embodiment of the utility model.
Figure number sign: 1, grinding roller cover; 2, rolling bearing; 3, gland; 4, axle sleeve; 5, grinding roller main shaft; 6, skeleton sealing ring; 7, self-locking is forced jack panel; 8, rotating ring; 9, stationary ring; 10, rubber spring; 11, rubber blanket; 12, belt oil storage tank; 13, grinding roller.
(5) specific embodiment:
In the utility model embodiment as shown in Figure 1, the non-maintaining grinding roller assembly apparatus of flour mill suspends installation in midair in flour mill, comprises grinding roller cover 1, grinding roller main shaft 5, gland 3, axle sleeve 4, sealing device, self-locking locking nut 7 and grinding roller 13 etc.
Grinding roller main shaft 5 is assembled in the grinding roller cover 1 by two rolling bearings 2 up and down, and stretch outside grinding roller overlaps 1 bottom the lower end of grinding roller main shaft 5, and the positioner of below rolling bearing 2 is gland 3 and axle sleeve 4; Gland 3 overlaps 1 flange in the bottom dish with grinding roller and installs by bolt, and gland 3 has with grinding roller and overlaps the consistent outside dimension of 1 ring flange, and the round platform of gland 3 upper ends is linked in grinding roller and overlaps in 1 internal diameter, and the round platform of gland 3 withstands the outer ring of rolling bearing 2; Axle sleeve 4 fit tensioners are on grinding roller main shaft 5, and the inner ring of rolling bearing 2 is withstood in the upper end of axle sleeve 4, as shown in Figure 1.
As shown in Figure 1, two skeleton sealing rings 6 in the sealing device are arranged between axle sleeve 4 and the gland 3 by upper-lower position, the external diameter setting-in of skeleton sealing ring 6 is gone in the little internal diameter in gland 3 corresponding upper ends, the internal diameter Elastic Contact of skeleton sealing ring 9 is on the external diameter of axle sleeve 4, the external diameter surface of axle sleeve 4 is through anti-Wear-resistant Treatment, offers annular oil storage tank 12 on the gland 3 little internal diameter inwalls between two skeleton sealing rings 6.
Except two skeleton sealing rings 6, the mechanical sealing member of installing after sealing device also comprises.As shown in Figure 1, mechanical sealing member comprises rotating ring 8, stationary ring 9, rubber spring 10 and rubber blanket 11, rubber spring 10 is horn-like belt body, the rubber spring 10 that horn mouth makes progress overlaps on the external diameter of the axle sleeve 4 of packing into, the horn mouth outer shroud of rubber spring 10 props up the large diameter bottom (large diameter of described gland 3 lower ends is concentric with the little internal diameter of gland 3 upper ends) of gland 3 lower ends, stationary ring 9 overlaps subsequently on the external diameter of the axle sleeve 4 of packing into and is connected with the interior ring of rubber spring 10, suit is rotating ring 8 afterwards, rubber blanket 11 overlaps on the external diameter of the axle sleeve 4 of packing into, and rotating ring 8 is connected with rubber blanket 11.
Be that self-locking forces jack panel 7 to be screwed into axle sleeve 4 to compress rubber blanket 11, rotating ring 8 is contacted with stationary ring 9 at last, and make rubber spring 10 strains produce bounce, rotating ring 8 and stationary ring 9 are compressed, as shown in Figure 1.
Install grinding roller 13 at last on the grinding roller main shaft 5 of sealing device lower end, as shown in Figure 1.
Described rotating ring 8 is made with stationary ring 9 usefulness carbide alloy.
The utility model can extensively utilization in R series pendulum type ring roll pulverizer (for example: 2R2713,3R3220,4R3216,5R4119 and 6R5125).
Claims (6)
1, the non-maintaining grinding roller assembly apparatus of flour mill; comprise gland (3) and the axle sleeve (4) of grinding roller cover (1) lower end grinding roller main shaft (5) being gone up rolling bearing (2) location; gland (3) is connected with grinding roller cover (1) bottom; axle sleeve (4) tensioner is on grinding roller main shaft (5); be provided with the sealing device that rolling bearing (2) is protected between gland (3) and the axle sleeve (4), it is characterized in that: described sealing device comprises that skeleton sealing ring (6), mechanical sealing member and self-locking that from-inner-to-outer is provided with force jack panel (7).
2, the non-maintaining grinding roller assembly apparatus of flour mill according to claim 1 is characterized in that: described mechanical sealing member comprises by the axial seal friction pair of flexible member pretension, is respectively rotating ring (8) stationary ring (9) with axle sleeve (4) suit.
3, the non-maintaining grinding roller assembly apparatus of flour mill according to claim 2, it is characterized in that: described flexible member is a horn-like belt rubber spring (10), rubber spring (10) is set in axle sleeve (4), its loudspeaker outer shroud is towards interior gland (3) the endoporus bottom of being sealed in, the interior hoop of rubber spring (10) outer with coaxial being connected of stationary ring (9).
4, the non-maintaining grinding roller assembly apparatus of flour mill according to claim 3, it is characterized in that: mechanical sealing member also comprises ring-shaped rubber pad (11), ring-shaped rubber pad (11) and axle sleeve (4) suit, its top inwardly with coaxial being connected of rotating ring (8), self-locking locking nut (7) is gone up and is pressed on bottom the rubber blanket (11) from being engaged in axle sleeve (4) outside to inside.
5, according to the non-maintaining grinding roller assembly apparatus of any one described flour mill in the claim 1～4, it is characterized in that: skeleton sealing ring (6) is inside and outside two, offers annular oil storage tank (12) on gland between the two (3) inwall.
6, according to the non-maintaining grinding roller assembly apparatus of any one described flour mill in the claim 2～4, it is characterized in that: rotating ring (8) and stationary ring (9) are made with carbide alloy.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201134501U CN201300077Y (en) | 2008-10-08 | 2008-10-08 | Grinding mill maintenance-free grinding roller assembly device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201134501U CN201300077Y (en) | 2008-10-08 | 2008-10-08 | Grinding mill maintenance-free grinding roller assembly device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201300077Y true CN201300077Y (en) | 2009-09-02 |
Family
ID=41083695
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008201134501U Expired - Lifetime CN201300077Y (en) | 2008-10-08 | 2008-10-08 | Grinding mill maintenance-free grinding roller assembly device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201300077Y (en) |
Cited By (6)
| 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 |
| CN102008988A (en) * | 2010-10-27 | 2011-04-13 | 溧阳中材重型机器有限公司 | Vertical mill grinding roll sealing device |
| CN102728437A (en) * | 2011-11-21 | 2012-10-17 | 王今奇 | Self-lubricating grinding roll |
| CN102728437B (en) * | 2011-11-21 | 2016-12-14 | 上海申重矿机科技有限公司 | Self-lubricating grinding roller |
| CN113102041A (en) * | 2021-03-16 | 2021-07-13 | 肖文龙 | Sealing device for grinding roller assembly of flour mill |
| CN114145088A (en) * | 2021-12-31 | 2022-03-08 | 湖南农夫机电有限公司 | A kind of rotary tiller knife shaft sealing structure |
-
2008
- 2008-10-08 CN CNU2008201134501U patent/CN201300077Y/en not_active Expired - Lifetime
Cited By (8)
| 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 |
| CN101949451B (en) * | 2010-10-11 | 2012-05-23 | 云南省机械研究设计院 | Chain type sealing device for preventing superfine powder particles from diffusing |
| CN102008988A (en) * | 2010-10-27 | 2011-04-13 | 溧阳中材重型机器有限公司 | Vertical mill grinding roll sealing device |
| CN102008988B (en) * | 2010-10-27 | 2012-08-22 | 溧阳中材重型机器有限公司 | Vertical mill grinding roll sealing device |
| CN102728437A (en) * | 2011-11-21 | 2012-10-17 | 王今奇 | Self-lubricating grinding roll |
| CN102728437B (en) * | 2011-11-21 | 2016-12-14 | 上海申重矿机科技有限公司 | Self-lubricating grinding roller |
| CN113102041A (en) * | 2021-03-16 | 2021-07-13 | 肖文龙 | Sealing device for grinding roller assembly of flour mill |
| CN114145088A (en) * | 2021-12-31 | 2022-03-08 | 湖南农夫机电有限公司 | A kind of rotary tiller knife shaft sealing structure |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: GUILIN HONGCHENG MINE EQUIPMENT MANUFACTURE CO., L Free format text: FORMER OWNER: RONG BEIGUO Effective date: 20100622 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| COR | Change of bibliographic data |
Free format text: CORRECT: ADDRESS; FROM: 541001 NO.1, 2/F, BUILDING 2, NO.123, HUANCHENG WEST 1ST ROAD, XIANGSHAN DISTRICT, GUILIN CITY, GUANGXI ZHUANG AUTONOMOUS REGION TO: 541100 YANGTANG INDUSTRIAL PARK, XICHENG ECONOMIC DEVELOPMENT ZONE, GUILIN CITY, GUANGXI ZHUANG AUTONOMOUS REGION |
|
| TR01 | Transfer of patent right |
Effective date of registration: 20100622 Address after: 541100, the Guangxi Zhuang Autonomous Region Guilin Economic Development Zone, Yang Tong Industrial Park Patentee after: Guilin HongCheng Mining Equipment Manufacture Co., Ltd. Address before: 541001, No. 2, No. 2, building 123, No. 1, West Road, Xiangshan District, Guilin, the Guangxi Zhuang Autonomous Region Patentee before: Rong Beiguo |
|
| CX01 | Expiry of patent term |
Granted publication date: 20090902 |
|
| CX01 | Expiry of patent term |