CN202845151U - Classifier - Google Patents
Classifier Download PDFInfo
- Publication number
- CN202845151U CN202845151U CN 201220578587 CN201220578587U CN202845151U CN 202845151 U CN202845151 U CN 202845151U CN 201220578587 CN201220578587 CN 201220578587 CN 201220578587 U CN201220578587 U CN 201220578587U CN 202845151 U CN202845151 U CN 202845151U
- Authority
- CN
- China
- Prior art keywords
- casing
- motor
- flange
- main shaft
- air cavity
- 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 - Fee Related
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Abstract
The utility model discloses a classifier, which comprises a casing, wherein the casing is in a barrel structure, a feed port is formed in the lower end of the casing, a cover plate is arranged at the upper end of the casing, a classifying wheel is arranged inside the casing, a discharge port is formed in one end of the classifying wheel, the other end of the classifying wheel is fixedly connected with a main shaft which is fixedly connected with a motor, a flange is also fixed on the motor and clamped on the casing, the main shaft penetrates through the flange to be connected with the motor, an air inlet is formed in the flange, a hollowed air cavity is also formed in the flange, the air cavity is communicated with and surrounds the main shaft, and the air inlet is communicated with the air cavity. The classifier provided by the utility model can effectively prevent a powder material from entering the motor so as to achieve a motor protection effect.
Description
Technical field
The utility model relates to a kind of grader, the screening of the material after being used for pulverizing.
Background technology
The screening of the material after grader be used for to be pulverized, its Main Function are the materials that will meet the particle diameter requirement and do not meet the material that particle diameter requires and separate.Known grader structure is comparatively simple, a grading wheel normally is set in casing, grading wheel directly is connected with motor, the driven by motor grading wheel rotates the screening that is carried out material, there is a defective in such grader, namely easily the material of pulverizing is brought in the motor, causes motor stuck even burn.
The utility model content
The utility model is for the problems referred to above, and purpose is to provide a kind of grader, can prevent effectively that powder from entering motor.
For achieving the above object, the technical solution of the utility model is: a kind of grader, comprise casing, casing is tube structure, the lower end is charging aperture, and the upper end is provided with cover plate, is provided with grading wheel in the casing, described grading wheel one end is provided with a discharging opening, the other end is fixedly connected with main shaft, and main shaft is fixedly connected with motor, also is fixed with a flange on motor, described flange is arranged on the casing, main shaft passes flange and is connected with motor, is provided with an air admission hole on the described flange, also is provided with an air cavity that hollows out on the flange, described air cavity is communicated with main shaft and around main shaft, described air admission hole is communicated with air cavity.
The beneficial effects of the utility model are: the utility model can prevent effectively that powder from entering motor, thereby plays the effect of protection motor.
Description of drawings
Fig. 1 is structural representation of the present utility model;
Fig. 2 is A of the present utility model place enlarged drawing.
Among the figure: motor 1, flange 2, casing 3, cover plate 4, grading wheel 5, main shaft 6, air admission hole 21, air cavity 22, charging aperture 31, discharging opening 51.
The specific embodiment
Below in conjunction with accompanying drawing, and in conjunction with the embodiments, the utility model is described further.
Embodiment:
Such as Fig. 1, shown in Figure 2, a kind of grader, comprise casing 3, casing 3 is tube structure, the lower end is charging aperture 31, and the upper end is provided with cover plate 4, is provided with grading wheel 5 in the casing 3, described grading wheel 5 one ends are provided with a discharging opening 51, the other end is fixedly connected with main shaft 6, and main shaft 6 is fixedly connected with motor 1, also is fixed with a flange 2 on motor 1, described flange 2 is arranged on the casing 3, main shaft 6 passes flange 2 and is connected with motor 1, is provided with an air admission hole 21 on the described flange 2, also is provided with an air cavity that hollows out 22 on the flange 2, described air cavity 22 is communicated with main shaft 6 and around main shaft 6, described air admission hole 21 is communicated with air cavity 22.
Operation principle of the present utility model is:
Discharging opening 51 is connected air-introduced machine, and air-introduced machine utilizes the vacuum intake principle that powder is sucked from charging aperture 31.
Because inevitably have the slit between the movable part of grader and the fixture, as do not have adequate measures, powder will certainly enter wherein in the course of work of grader, bonding causes movable part stuck in the slit, thereby affects the work of whole grader; Flange 2 is fixtures in the utility model; bearing 6 is movable parts; just there is the space between fixture and the movable part; but because this space communicates with air cavity 22; therefore when having compressed air in the air cavity 22, can carry out a lasting purging job to the space, therefore can prevent effectively that powder from entering wherein; and prevent that further powder from entering into motor 1, motor 1 has been played a protective effect.
For compressed-air actuated flow, generally need to set according to the concrete volume size of air cavity 22, generally, flow-control is at 0.1～0.5m
3/ min.
Claims (1)
1. grader, comprise casing (3), casing (3) is tube structure, the lower end is charging aperture (31), the upper end is provided with cover plate (4), be provided with grading wheel (5) in the casing (3), described grading wheel (5) one ends are provided with a discharging opening (51), the other end is fixedly connected with main shaft (6), main shaft (6) is fixedly connected with motor (1), it is characterized in that: on motor (1), also be fixed with a flange (2), described flange (2) is arranged on the casing (3), main shaft (6) passes flange (2) and is connected with motor (1), be provided with an air admission hole (21) on the described flange (2), also be provided with an air cavity that hollows out (22) on the flange (2), described air cavity (22) is communicated with main shaft (6) and around main shaft (6), described air admission hole (21) is communicated with air cavity (22).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220578587 CN202845151U (en) | 2012-10-25 | 2012-10-25 | Classifier |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220578587 CN202845151U (en) | 2012-10-25 | 2012-10-25 | Classifier |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202845151U true CN202845151U (en) | 2013-04-03 |
Family
ID=47976389
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220578587 Expired - Fee Related CN202845151U (en) | 2012-10-25 | 2012-10-25 | Classifier |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202845151U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104128312A (en) * | 2013-05-03 | 2014-11-05 | 浙江力普粉碎设备有限公司 | High-speed classifier |
-
2012
- 2012-10-25 CN CN 201220578587 patent/CN202845151U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104128312A (en) * | 2013-05-03 | 2014-11-05 | 浙江力普粉碎设备有限公司 | High-speed classifier |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130403 Termination date: 20151025 |
|
| EXPY | Termination of patent right or utility model |