CN220759505U - Split type surrounding structure grinding roller skirt cover dress cover - Google Patents
Split type surrounding structure grinding roller skirt cover dress cover Download PDFInfo
- Publication number
- CN220759505U CN220759505U CN202321909347.9U CN202321909347U CN220759505U CN 220759505 U CN220759505 U CN 220759505U CN 202321909347 U CN202321909347 U CN 202321909347U CN 220759505 U CN220759505 U CN 220759505U
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- China
- Prior art keywords
- cover plate
- cover
- grinding roller
- split
- split type
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- 230000002093 peripheral effect Effects 0.000 claims 5
- 238000009434 installation Methods 0.000 abstract description 20
- 239000000843 powder Substances 0.000 abstract description 7
- 238000007664 blowing Methods 0.000 abstract description 3
- 239000003245 coal Substances 0.000 description 15
- 230000000694 effects Effects 0.000 description 7
- 238000007789 sealing Methods 0.000 description 6
- 239000002817 coal dust Substances 0.000 description 5
- 230000009471 action Effects 0.000 description 3
- 210000001503 joint Anatomy 0.000 description 3
- 238000005299 abrasion Methods 0.000 description 2
- 238000001035 drying Methods 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000002079 cooperative effect Effects 0.000 description 1
- 239000002274 desiccant Substances 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
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- Crushing And Grinding (AREA)
Abstract
The utility model discloses a split type enclosing structure grinding roller skirt cover mounting cover which is used for protecting a grinding roller shaft, wherein an oil seal framework is arranged on the periphery of the grinding roller shaft, a cover plate is arranged on the periphery of the grinding roller shaft, the cover plate can cover the oil seal framework after being mounted, the cover plate is of a split type detachable structure, and the cover plate is mounted without being in contact with the oil seal framework; can effectually avoid on large tracts of land back blowing powder adhesion on oil blanket skeleton and grinding roller axle through the setting that adopts the apron, and can be the convenience when the installation is guaranteed to the at utmost through split type installation.
Description
Technical Field
The utility model relates to the technical field of bowl-type medium-speed coal mills, in particular to a split-type surrounding structure mill roll skirt cover mounting cover.
Background
The bowl-type medium speed coal mill can be divided into four parts from bottom to top along the height direction: the device comprises a driving device, a grinding part, a drying and separating space and a coal dust separating and distributing device; the working process is as follows: the grinding disc or the grinding ring is driven by a motor to rotate through a speed reducing device and a vertically arranged main shaft; raw coal enters the surfaces of two groups of grinding pieces which move relatively through a coal dropping pipe, is extruded and ground under the action of a compacting force, and is crushed into coal dust; the ground coal powder rotates together with the grinding part and is thrown above the wind ring under the action of centrifugal force and pushing action of the coal and the coal powder which are continuously ground; the hot air (drying agent) is rectified by an air ring provided with flow equalizing guide vanes, enters an annular drying space at a certain air speed, dries coal dust, and brings the coal dust into a coal dust separator at the upper part of a coal mill.
The structure of present bowl formula coal pulverizer is mostly mechanical seal, and sealed face comprises embedded grinding roller seat lid's three-layer skeleton oil blanket and the wear-resisting cover that cooperatees with the grinding roller axle, but sets up the coal pulverizer like this when the operation, because the wind powder mixture that the bottom was blown up will influence the operation of coal pulverizer and increase the wearing and tearing volume of grinding roller and so the wearing and tearing condition.
Disclosure of Invention
The utility model aims to provide a split type enclosing structure grinding roller skirt cover mounting cover, which can provide secondary sealing.
The technical aim of the utility model is realized by the following technical scheme: the utility model provides a split type surrounding structure grinding roller skirt cover dress cover for protection grinding roller axle, the circumference of grinding roller axle is provided with oil blanket skeleton, characterized by: the grinding roller is characterized in that a cover plate is arranged on the periphery of the grinding roller shaft, the oil seal framework can be coated after the cover plate is installed, the cover plate is of a split detachable structure, and the cover plate is installed without being in contact with the oil seal framework.
Can effectually avoid on large tracts of land back blowing powder adhesion on oil blanket skeleton and grinding roller axle through the setting that adopts the apron, and can be the convenience when the installation is guaranteed to the at utmost through split type installation.
The utility model is further provided with: the cover plate is of a split type with two semicircular structures, and the two semicircular structural members are fixed through bolts to form a circular cover plate.
The split installation is convenient and fast when the split installation is ensured by adopting the semicircular structure, and the split installation is convenient and fast when the split installation is replaced.
The utility model is further provided with: the two ends of the structural member are provided with lug plates, the lug plates are provided with two fixing holes, and fixing bolts are arranged in the fixing holes.
The simplest installation mode can be guaranteed to be adopted through the arrangement of the fixing holes, the operation difficulty is lower, and the adopted accessory bolts are more common, so that the cost is reduced.
The utility model is further provided with: and taper pin structures are arranged between the fixing holes.
The taper pin structure is arranged, so that the auxiliary positioning effect can be achieved during installation, the cost cannot be increased, and the installation can be more convenient.
The utility model is further provided with: after the cover plate is installed, the distance between the inner wall of the cover plate and the outer wall of the oil seal framework is 1-8mm.
Through adopting the setting of booth to guarantee its effectual seal, and the rocking range of grinding roller is not big, consequently can enough guarantee dustproof effect in this interval, have the reasonable rocking that can give the grinding roller.
The utility model is further provided with: the top of the cover plate is of a disc structure, and the bottom of the cover plate is of a cylindrical structure.
The cylindrical disc structure can form a fixed and abutting effect with the grinding roller shaft, so that the operation effect and the cooperative effect are guaranteed.
In summary, the utility model has the following beneficial effects: can effectually avoid on large tracts of land back blowing powder adhesion on oil blanket skeleton and grinding roller axle through the setting that adopts the apron, and can be the convenience when the installation is guaranteed to the at utmost through split type installation.
Drawings
FIG. 1 is a bottom view of a cover plate in an embodiment of the utility model;
FIG. 2 is a cross-sectional view of a cover plate in an embodiment of the utility model;
FIG. 3 is a schematic view of the installation of a cover plate in an embodiment of the utility model;
fig. 4 is an enlarged view at a of fig. 3 in an embodiment of the present utility model.
In the figure: 1. a cover plate; 2. a grinding roll shaft; 3. an oil seal framework; 4. taper pin structure; 5. ear plate.
Detailed Description
The utility model is described in further detail below with reference to fig. 1-4.
Examples
The structure of present bowl coal pulverizer is mostly mechanical seal, and sealed face comprises embedded grinding roller seat lid's three-layer skeleton oil blanket and with grinding roller axle 2 matched with wear-resisting cover, but so set up the coal pulverizer when the operation, the wind powder mixture that the bottom was blown up will influence the operation of coal pulverizer like: the abrasion amount of the grinding roller is increased, so that abrasion condition, sealing surface sealing failure caused by long-term adhesion to the sealing surface and the like are caused.
As shown in fig. 1 and 2, the detachable cover assembly cover for the grinding roller skirt with the surrounding structure comprises a cover plate 1, wherein the whole structure of the cover plate 1 is of a circular ring structure at the top and a circular tube structure at the bottom, and the cover plate and the circular ring structure are concentrically arranged and integrally cast.
For the convenience of installation on the finished machine, the cover plate 1 is divided into two parts, and a circular cover plate 1 is formed by two semicircular mechanism parts.
For convenient with two structure equipment fixed, the both sides of every structure all are provided with otic placode 5, and otic placode 5 sets up on the lateral wall of pipe structure to with its butt joint face parallel and level, be provided with two fixed orifices on every otic placode 5, for fixing bolt passes.
As preferable: the installation itself on the finished product machinery is limited inconvenient its operation installation, and for the more accurate of installation, two otic placodes 5 on a structure are provided with taper pin structure 4, are provided with circular shape taper hole on the butt joint face of one of them otic placode 5, are provided with the awl post on the butt joint face of another otic placode 5, will be because the effect of pressure will agree with the taper hole when the awl post is installed, so just can realize the effect of location.
As preferable: in order to better combine the cover plate 1 with finished product mechanical installation, namely coal mill grinding roll shaft, evenly set up a plurality of through-hole sites that correspond on the finished product machinery on the disc structure of cover plate 1 to realize fixed effect, fix with this, through dismantling the epaxial bolt of grinding roll after this device is gone up in the increase, fix, finally realize a skirt lid that matches with grinding roll shaft itself.
As preferable: the top of pipe structure is the ring structure, still is provided with detachable brush on its bottom terminal surface, just can shutoff most because the dust adhesion condition that the return air produced after setting up the brush, can make the brush can change after the brush grinds for a long time through detachable setting up mode, and brush slope is to the outside orientation setting of grinding roller shaft 2.
In order to ensure the stable installation and sealing performance of the interface, a rubber gasket is arranged between the abutting surfaces of the two ear plates 5 and the top surface of the disc structure to serve as a sealing medium.
When the cover plate is installed, the space between the inner wall of the cover plate and the outer wall of the oil seal framework is 1-8mm.
The present embodiment is only for explanation of the present utility model and is not to be construed as limiting the present utility model, and modifications to the present embodiment, which may not creatively contribute to the present utility model as required by those skilled in the art after reading the present specification, are all protected by patent laws within the scope of claims of the present utility model.
Claims (6)
1. The utility model provides a split type surrounding structure grinding roller skirt cover dress cover for protection grinding roller axle (2), the circumference of grinding roller axle (2) is provided with oil blanket skeleton (3), characterized by: the grinding roller is characterized in that a cover plate (1) is arranged on the periphery of the grinding roller shaft (2), the cover plate (1) can be coated with the oil seal framework (3) after being installed, the cover plate (1) is of a split detachable structure, and the cover plate (1) is installed without being in contact with the oil seal framework (3).
2. The split peripheral structured grinding roll skirt cover set according to claim 1, characterized in that: the cover plate (1) is of a split type with two semicircular structures, and the two semicircular structural members are fixed through bolts to form the circular cover plate (1).
3. The split peripheral structured grinding roll skirt cover set cover according to claim 2, characterized in that: the two ends of the structural member are provided with ear plates (5), the ear plates (5) are provided with two fixing holes, and fixing bolts are arranged in the fixing holes.
4. A split-type peripheral structure grinding roll skirt cover according to claim 3, characterized in that: taper pin structures (4) are arranged between the fixing holes.
5. The split peripheral structured grinding roll skirt cover set according to claim 1, characterized in that: after the cover plate (1) is installed, the interval between the inner wall of the cover plate (1) and the outer wall of the oil seal framework (3) is 1-8mm.
6. The split peripheral structured grinding roll skirt cover set according to claim 1, characterized in that: the top of the cover plate (1) is of a disc structure, and the bottom of the cover plate is of a cylindrical structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321909347.9U CN220759505U (en) | 2023-07-19 | 2023-07-19 | Split type surrounding structure grinding roller skirt cover dress cover |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321909347.9U CN220759505U (en) | 2023-07-19 | 2023-07-19 | Split type surrounding structure grinding roller skirt cover dress cover |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220759505U true CN220759505U (en) | 2024-04-12 |
Family
ID=90619035
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321909347.9U Active CN220759505U (en) | 2023-07-19 | 2023-07-19 | Split type surrounding structure grinding roller skirt cover dress cover |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220759505U (en) |
-
2023
- 2023-07-19 CN CN202321909347.9U patent/CN220759505U/en active Active
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