CN218962898U - Scraper structure of coal mill - Google Patents
Scraper structure of coal mill Download PDFInfo
- Publication number
- CN218962898U CN218962898U CN202223485096.4U CN202223485096U CN218962898U CN 218962898 U CN218962898 U CN 218962898U CN 202223485096 U CN202223485096 U CN 202223485096U CN 218962898 U CN218962898 U CN 218962898U
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- rotary drum
- receiving tray
- arc
- baffle
- front baffle
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- 239000003245 coal Substances 0.000 title claims abstract description 55
- 230000005540 biological transmission Effects 0.000 claims abstract description 12
- 238000010030 laminating Methods 0.000 claims abstract description 10
- 239000000463 material Substances 0.000 claims description 9
- 230000001681 protective effect Effects 0.000 claims description 5
- 230000006978 adaptation Effects 0.000 claims description 2
- 238000003491 array Methods 0.000 claims description 2
- 238000005096 rolling process Methods 0.000 claims description 2
- 238000007790 scraping Methods 0.000 abstract description 11
- 238000005299 abrasion Methods 0.000 abstract description 5
- 230000002035 prolonged effect Effects 0.000 abstract description 2
- 239000004575 stone Substances 0.000 description 12
- 239000002245 particle Substances 0.000 description 4
- 230000033001 locomotion Effects 0.000 description 3
- 239000000843 powder Substances 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 229910010293 ceramic material Inorganic materials 0.000 description 1
- 239000003153 chemical reaction reagent Substances 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 238000007670 refining Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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Abstract
The utility model discloses a scraper structure of a coal mill, which comprises a receiving tray, a supporting shaft, a discharge hole, a motor, a rotary drum and a transmission assembly, wherein the surface of the rotary drum is sleeved with the scraper assembly, the scraper assembly comprises a mounting frame, a front baffle and a rear baffle, one side of the front baffle, which is far away from the rear baffle, is provided with an arc-shaped groove, the position of the arc-shaped groove is matched with that of the discharge hole, the lower end of the front baffle is provided with a laminating part which is laminated with the edge of the receiving tray, and the side surface of the laminating part, which is laminated with the receiving tray, is an arc-shaped surface which is identical with the arc shape of the receiving tray; according to the utility model, the pebble coal at the edge of the receiving tray can be led into the arc-shaped groove, meanwhile, the pebble coal on the surface of the receiving tray is gathered in the arc-shaped groove and uniformly discharged, so that the problem that the pebble coal cannot be discharged due to the fact that the gap between the scraping plate component and the receiving tray is large, the pebble coal is driven to roll between the scraping plate component and the receiving tray to cause abrasion of the scraping plate component and the receiving tray, the replacement period of the receiving tray and the scraping plate component is prolonged, and meanwhile, the problem that the pebble coal cannot be discharged due to the fact that the pebble coal always moves circularly along with the scraping plate component is prevented.
Description
Technical Field
The utility model relates to the field of coal mills, in particular to a scraper structure of a coal mill.
Background
The coal mill is a machine for crushing coal blocks and grinding the coal blocks into coal powder, is an important auxiliary device of a coal powder furnace, is mainly used for grinding the coal into the coal powder in the coal mill in three modes of crushing, shredding and grinding, a grinding inner cavity of the coal mill is provided with a grinding head for grinding and refining the coal, some large-particle coal which is not ground by the grinding head can directly fall into a receiving tray, the large-particle coal is scraped to a discharge port by a scraping plate, the large-particle coal is continuously sent to the grinding inner cavity for grinding after being discharged, the scraping plate is contacted with the large-particle coal for a long time, certain abrasion can occur, and the scraping plate needs to be replaced periodically.
Through retrieving, a medium speed pulverizer stone coal scraper blade structure of publication number CN215843497U, including receiving the charging tray, connect charging tray left side top intercommunication to install the discharge gate, connect charging tray left side top fixed mounting to have the lug, connect charging tray top central part fixed mounting to have the back shaft, back shaft mid-section rotation installs the collar, and back shaft top right side demountable installation has the motor, and motor top demountable installation keeps off the cover, and collar bottom right side fixed mounting has the mounting bracket.
According to the technical scheme, the ceramic strips are arranged at the bottoms of the scrapers and are made of wear-resistant ceramic materials, wear resistance and chemical properties are excellent, the working environment which is in contact with and rubble with stone coal can be met for a long time, the baffle arranged on the front side wall of the scrapers can protect the scraper body, the detachable replaceability of the baffle is beneficial to prolonging the service life of the scrapers, the bumps arranged on the surfaces of the baffle can be used as wear expendables with the stone coal, whether the baffle is replaced or not can be judged according to the wear degree of the bumps, the gap between the outer side of the scrapers and the edge of the receiving disc is large as shown in the attached drawing of the scraper structure, the stone coal at the edge of the receiving disc cannot be well led into the discharge port through the scrapers, the stone coal at the edge is located between the scrapers and the receiving disc when the scrapers rotate, the scrapers drive the stone coal to roll between the scrapers and the receiving disc when the scrapers move, the scrapers cause moving wear to the receiving disc, the wear is caused by the abutting disc, the wear is replaced to a certain degree, the scrapers are replaced by the coal receiving disc, and the coal is replaced by the scrapers, and the coal mill structure is improved.
Disclosure of Invention
In order to overcome the defects in the prior art, the utility model provides a scraper structure of a coal mill, which aims to solve the problems in the background art.
In order to solve the technical problems, the utility model provides the following technical scheme: the coal mill scraping plate structure comprises a supporting shaft arranged in the middle of the upper side of the receiving tray and a discharge hole at one end of the upper side of the receiving tray, wherein a motor is installed at one end of the supporting shaft, a rotary drum is sleeved on the lower surface of the supporting shaft in a sliding manner, a transmission assembly is installed between the motor and the rotary drum, and the rotary drum slides along the surface of the supporting shaft;
the surface of the rotary drum is sleeved with a scraping plate assembly, the scraping plate assembly comprises a mounting frame fixedly connected with the rotary drum and a front baffle and a rear baffle which are respectively arranged on the surfaces of two ends of the mounting frame, and accommodating cavities matched with the mounting frame are respectively arranged in the front baffle and the rear baffle;
the front baffle is kept away from backplate one side and is provided with the arc recess, arc recess position and discharge gate position adaptation, the front baffle lower extreme is provided with the laminating portion that laminates with receiving the charging tray border, laminating portion is the arcwall face the same with receiving the charging tray arc with the side of receiving the charging tray laminating.
As a preferable technical scheme of the utility model, one end of the rear baffle close to the edge of the receiving disc is provided with a roller which rolls along the edge of the receiving disc.
As a preferable technical scheme of the utility model, the mounting frame comprises a connector fixedly connected with the surface of the rotary drum, the front baffle and the rear baffle respectively comprise semicircular connecting clamping rings sleeved on the surface of the rotary drum, and a second embedding block and a second embedding groove which are matched are respectively arranged on one side, which is attached to the connecting clamping rings, of the front baffle and the rear baffle.
As a preferable technical scheme of the utility model, two ends of the accommodating cavity on one side where the front baffle plate and the rear baffle plate are attached are respectively provided with a first embedded block and a first embedded groove which are matched, and the mounting frame is embedded in the two accommodating cavities through the first embedded block and the first embedded groove by the front baffle plate and the rear baffle plate.
As a preferable technical scheme of the utility model, two limiting blocks are arranged on one annular array of the surfaces, which are attached to the rotary drum, of the connecting clamping rings, and limiting grooves matched with the limiting blocks are formed in the surface of the rotary drum.
As a preferable technical scheme of the utility model, the transmission assembly comprises a first belt pulley fixedly sleeved on the surface of the rotary drum and a second belt pulley in rotary connection with the motor driving shaft, and the first belt pulley is connected with the second belt pulley through a belt.
As a preferable technical scheme of the utility model, the transmission assembly and the outer end of the motor are sleeved with a protective cover fixedly connected with the upper side of the supporting shaft.
Compared with the prior art, the utility model has the following beneficial effects:
according to the utility model, the motor, the transmission assembly drum and the scraper assembly do circular motion along the surface of the material receiving tray, the joint part matched with the end part of the scraper assembly slides along the edge of the material receiving tray, the stone coal on the edge of the material receiving tray is matched with the arc surface of the arc-shaped groove to be led into the arc-shaped groove, meanwhile, the stone coal on the surface of the material receiving tray is gathered in the arc-shaped groove, when the arc-shaped groove moves to the discharge hole, the gathered stone coal is uniformly led out through the discharge hole, the problem that the stone coal cannot be discharged due to the circular motion of the scraper assembly all the time is prevented because the gap between the scraper assembly and the material receiving tray is larger, the stone coal is driven to roll between the scraper assembly and the scraper assembly to cause abrasion of the scraper assembly, the replacement period of the material receiving tray and the scraper assembly is prolonged, and the stone coal can be gathered and discharged uniformly.
Drawings
FIG. 1 is a schematic diagram of the structure of the present utility model;
FIG. 2 is a front view of the present utility model;
FIG. 3 is a schematic view of the structure of the squeegee assembly of the present utility model;
FIG. 4 is a schematic view of the structure of the front and rear baffles of the present utility model;
FIG. 5 is an exploded view of the squeegee assembly of the present utility model;
fig. 6 is a schematic view of the structure of the drum of the present utility model.
Wherein: 1. a receiving tray; 2. a discharge port; 3. a protective cover; 4. a squeegee assembly; 41. a front baffle; 42. a rear baffle; 43. an arc-shaped groove; 44. a bonding part; 45. a roller; 46. connecting a clamping ring; 47. a first slug; 48. a first caulking groove; 49. a second slug; 410. a second caulking groove; 5. a support shaft; 6. a rotating drum; 7. a first pulley; 8. a second pulley; 9. a belt; 10. a motor; 11. a mounting frame; 12. a receiving chamber; 13. a connector; 14. a limiting block; 15. and a limit groove.
Detailed Description
In order that the manner in which the above recited features, objects and advantages of the present utility model are obtained will become readily apparent, a more particular description of the utility model will be rendered by reference to specific embodiments thereof which are illustrated in the appended drawings. Based on the examples in the embodiments, those skilled in the art can obtain other examples without making any inventive effort, which fall within the scope of the utility model. The experimental methods in the following examples are conventional methods unless otherwise specified, and materials, reagents, etc. used in the following examples are commercially available unless otherwise specified.
Examples:
as shown in fig. 1, fig. 2, fig. 3 and fig. 5, the utility model provides a scraper structure of a coal mill, which comprises a supporting shaft 5 arranged in the middle of the upper side of a receiving tray 1 and a discharge hole 2 at one end of the upper side of the receiving tray 1, wherein a motor 10 is arranged at one end of the supporting shaft 5, a rotary drum 6 is sleeved on the lower surface of the supporting shaft 5 in a sliding manner, a transmission assembly is arranged between the motor 10 and the rotary drum 6, the rotary drum 6 slides along the surface of the supporting shaft 5, the transmission assembly comprises a first belt pulley 7 fixedly sleeved on the surface of the rotary drum 6 and a second belt pulley 8 rotationally connected with a driving shaft of the motor 10, the first belt pulley 7 is connected with the second belt pulley 8 through a belt 9, a protective cover 3 fixedly connected with the upper side of the supporting shaft 5 is sleeved at the outer ends of the transmission assembly and the motor 10, and the transmission assembly and the motor 10 play a protective role;
the scraper assembly 4 is sleeved on the surface of the rotary drum 6, the scraper assembly 4 comprises a mounting frame 11 fixedly connected with the rotary drum 6 and a front baffle 41 and a rear baffle 42 which are respectively arranged on the surfaces of two ends of the mounting frame 11, accommodating cavities 12 which are matched with the mounting frame 11 are respectively arranged in the front baffle 41 and the rear baffle 42, and the overall strength of the scraper assembly 4 can be improved through the arrangement of the mounting frame 11;
an arc-shaped groove 43 is formed in one side, far away from the rear baffle 42, of the front baffle 41, the position of the arc-shaped groove 43 is matched with the position of the discharge hole 2, a fitting part 44 fitting with the edge of the receiving disc 1 is arranged at the lower end of the front baffle 41, and the side, fitting with the receiving disc 1, of the fitting part 44 is an arc-shaped surface identical to the arc-shaped surface of the receiving disc 1;
in this embodiment, when in use, the motor 10 is controlled to work, the motor 10 drives the second belt pulley 8 to rotate, simultaneously the cooperation belt 9 drives the first belt pulley 7 to rotate, the first belt pulley 7 drives the rotary drum 6 to rotate along the surface of the supporting shaft 5, simultaneously the rotary drum 6 drives the scraper assembly 4 to rotate, the laminating part 44 at the end part of the scraper assembly 4 slides along the edge of the receiving tray 1, the front baffle 41 at the front end of the scraper assembly 4 is firstly contacted with pebble coal and is matched with the arc-shaped groove 43 arranged on the surface of the front baffle 41, the pebble coal is enabled to be gathered at the most concave position of the arc-shaped groove 43 along the peripheral end arc of the arc-shaped groove 43, meanwhile, the pebble coal attached to the edge of the receiving tray 1 is scraped, and is guided into the arc-shaped groove 43 in a matched with the arc-shaped surface of the arc-shaped groove 43, and the gathered pebble coal is uniformly guided out through the discharge port 2 when the arc-shaped groove 43 moves to the position of the discharge port 2, and the abrasion of the pebble coal is prevented from being caused between the scraper assembly 4 and the receiving tray 1 due to the larger gap between the scraper assembly 1 and the scraper assembly 4.
As shown in fig. 3, this embodiment discloses that the end of the back baffle 42 near the edge of the receiving tray 1 is provided with a roller 45 rolling along the edge of the receiving tray 1, when the scraper assembly 4 moves, the roller 45 rolls along the edge of the receiving tray 1, so as to support and move the scraper assembly 4, and improve the stability of the scraper assembly 4 during movement.
As shown in fig. 4, this embodiment discloses that the mounting bracket 11 includes the connector 13 fixedly connected with the surface of the drum 6, the front baffle 41 and the rear baffle 42 respectively include a semicircular connection clamping ring 46 sleeved on the surface of the drum 6, one side of the two connection clamping rings 46, which are attached, is respectively provided with a second embedded block 49 and a second embedded groove 410, the scraper assembly 4 is sleeved on the surface of the drum 6 through the connection clamping rings 46 arranged at the end parts of the front baffle 41 and the rear baffle 42, and is engaged with the second embedded block 49 and the second embedded groove 410, so that the overall stability of the scraper assembly 4 is improved.
As shown in fig. 4 and 5, this embodiment discloses that two ends of the accommodating cavity 12 on one side where the front baffle 41 and the rear baffle 42 are attached are respectively provided with a first insert 47 and a first insert 48, the front baffle 41 and the rear baffle 42 are embedded in the two accommodating cavities 12 through the first insert 47 and the first insert 48, the embedding between the front baffle 41 and the rear baffle 42 is realized through the arrangement of the first insert 47 and the first insert 48, and meanwhile, the connector 13 is positioned in the middle of the scraper assembly 4, so that the overall stability of the scraper assembly 4 is improved, when the scraper assembly 4 needs to be replaced, only the front baffle 41 or the rear baffle 42 needs to be replaced independently according to the surface abrasion degree of the front baffle 41 and the rear baffle 42, and the whole replacement of the scraper assembly 4 is not needed, thereby saving the cost.
As shown in fig. 5 and 6, this embodiment discloses that two annular arrays of one surface, which is attached to the rotary drum 6, of two connection snap rings 46 are provided with limiting blocks 14, the surface of the rotary drum 6 is provided with limiting grooves 15 which are matched with the limiting blocks 14, and when the connection snap rings 46 are installed with the rotary drum 6, the limiting blocks 14 which are matched with the inner sides of the connection snap rings 46 extend to the limiting grooves 15 on the surface of the rotary drum 6, so that the limiting between the scraper assembly 4 and the rotary drum 6 is realized, the rotation between the scraper assembly 4 and the rotary drum 6 is prevented, and the stability of the scraper assembly 4 is further improved.
Although embodiments of the present utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.
Claims (7)
1. The utility model provides a coal pulverizer scraper blade structure, including setting up back shaft (5) at receiving charging tray (1) upside middle part and receiving discharge gate (2) of charging tray (1) upside one end, its characterized in that: a motor (10) is arranged at one end of the supporting shaft (5), a rotary drum (6) is sleeved on the lower surface of the supporting shaft (5) in a sliding mode, a transmission assembly is arranged between the motor (10) and the rotary drum (6), and the rotary drum (6) slides along the surface of the supporting shaft (5);
the surface of the rotary drum (6) is sleeved with a scraper assembly (4), the scraper assembly (4) comprises a mounting frame (11) fixedly connected with the rotary drum (6) and a front baffle (41) and a rear baffle (42) which are respectively arranged on the surfaces of two ends of the mounting frame (11), and accommodating cavities (12) which are matched with the mounting frame (11) are respectively arranged in the front baffle (41) and the rear baffle (42);
the front baffle (41) is provided with arc-shaped groove (43) on one side far away from the rear baffle (42), arc-shaped groove (43) position and discharge gate (2) position adaptation, front baffle (41) lower extreme is provided with laminating portion (44) with connect charging tray (1) border laminating, laminating portion (44) and the side of connecing charging tray (1) laminating are the arcwall face the same with connecing charging tray (1) arc.
2. The coal pulverizer flighting structure of claim 1, wherein: and a roller (45) rolling along the edge of the material receiving disc (1) is arranged at one end of the rear baffle (42) close to the edge of the material receiving disc (1).
3. The coal pulverizer flighting structure of claim 1, wherein: the mounting frame (11) comprises a connector (13) fixedly connected with the surface of the rotary drum (6), the front baffle (41) and the rear baffle (42) respectively comprise semicircular connecting clamping rings (46) sleeved on the surface of the rotary drum (6), and the matched second embedding blocks (49) and second embedding grooves (410) are respectively arranged on one side, which is jointed with the connecting clamping rings (46), of the mounting frame.
4. The coal pulverizer flighting structure of claim 3, wherein: the front baffle (41) and the rear baffle (42) are respectively provided with a first embedding block (47) and a first embedding groove (48) which are matched with each other at two ends of the accommodating cavity (12) at one side of the front baffle and the rear baffle (42), and the mounting frame (11) is embedded in the two accommodating cavities (12) through the first embedding blocks (47) and the first embedding grooves (48) by the front baffle (41) and the rear baffle (42).
5. The coal pulverizer flighting structure of claim 3, wherein: two the annular arrays of one surface of the connecting snap ring (46) attached to the rotary drum (6) are provided with limiting blocks (14), and the surface of the rotary drum (6) is provided with limiting grooves (15) matched with the limiting blocks (14).
6. The coal pulverizer flighting structure of claim 1, wherein: the transmission assembly comprises a first belt pulley (7) fixedly sleeved on the surface of the rotary drum (6) and a second belt pulley (8) rotationally connected with a driving shaft of the motor (10), and the first belt pulley (7) is connected with the second belt pulley (8) through a belt (9).
7. The coal pulverizer flighting structure of claim 6, wherein: the transmission assembly and the outer end of the motor (10) are sleeved with a protective cover (3) fixedly connected with the upper side of the supporting shaft (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223485096.4U CN218962898U (en) | 2022-12-26 | 2022-12-26 | Scraper structure of coal mill |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223485096.4U CN218962898U (en) | 2022-12-26 | 2022-12-26 | Scraper structure of coal mill |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218962898U true CN218962898U (en) | 2023-05-05 |
Family
ID=86153858
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202223485096.4U Active CN218962898U (en) | 2022-12-26 | 2022-12-26 | Scraper structure of coal mill |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218962898U (en) |
-
2022
- 2022-12-26 CN CN202223485096.4U patent/CN218962898U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address |
Address after: No. 121 Xiamen Road, Binjiang Street, Haimen District, Nantong City, Jiangsu Province, 226000 Patentee after: Haixin power equipment manufacturing (Nantong) Co.,Ltd. Country or region after: China Address before: No. 66 Oujiang South Road, Haimen Street, Nantong City, Jiangsu Province, 226000 Patentee before: Haixin power equipment manufacturing (Nantong) Co.,Ltd. Country or region before: China |
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| CP03 | Change of name, title or address |