CN104226456A - Double-fulcrum classifying wheel structure of airflow crusher - Google Patents
Double-fulcrum classifying wheel structure of airflow crusher Download PDFInfo
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- CN104226456A CN104226456A CN201310226916.4A CN201310226916A CN104226456A CN 104226456 A CN104226456 A CN 104226456A CN 201310226916 A CN201310226916 A CN 201310226916A CN 104226456 A CN104226456 A CN 104226456A
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- grading wheel
- impeller disk
- rotating shaft
- discharger
- wheel
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Abstract
The invention discloses a double-fulcrum classifying wheel structure of an airflow crusher. The double-fulcrum classifying wheel structure comprises a classifying wheel, a rotating shaft and a discharging device. The classifying wheel is fixedly connected to the rotating shaft at the center position. The discharging device is arranged in front of the classifying wheel. The feeding end of the discharging device is opposite to the discharging end of the classifying wheel. A feeding inlet of the discharging device is communicated with a discharging outlet of the classifying wheel. A discharging outlet of the discharging device is the same as the discharging outlet of the classifying wheel in direction. One end of the rotating shaft is fixedly connected to a cylinder of the airflow crusher through a bearing. The other end of the rotating shaft is fixedly connected inside the discharging device through a bearing. The supporting structure and the discharging structure of the classifying wheel and the rotating shaft are improved, the classifying accuracy of the airflow crusher is improved, and the safe and stable operation of the airflow crusher is ensured.
Description
Technical field
The invention belongs to airslide disintegrating mill construction applications, be specifically related to a kind of two fulcrum grading wheel structure of airslide disintegrating mill of modified node method.
Background technology
All by compressed air is spurted into pulverizing cavity through nozzle at high speeds during airslide disintegrating mill work, at the joint place material of multiply high pressure draught by impact several times, friction, shearing and pulverizing, material after pulverizing moves to graded region with ascending air under blower fan draft effect, under the powerful centrifugal action that the grading wheel of High Rotation Speed produces, make thickness feed separation, meet the fine grained of granularity requirements by grading wheel discharging, coarse granule drops to disintegrating area to be continued to pulverize.Wherein, during grading wheel work, under the influence of centrifugal force, large or heavy particle centrifugalization power is large for gas powder, therefore is got rid of to grading wheel peripheral to graded region limit wall, and no longer by the impact of centrifugal force, naturally drops in pulverizer and continue to pulverize; Little or light material is little by centrifugal action, enters grading wheel with air-flow, along Flows to next unit.By regulate grading wheel rotating speed just adjustable gradation time centrifugal force size, reach the object of the material separating designated size.
In prior art, grading wheel is fixed in cylindrical shell by rotating shaft list fulcrum, and the transmission critical speed of this grading wheel is lower, once close to critical speed, violent resonance will occur grading wheel, easily causes device damage.Also have and adopt two fulcrum to fix rotating shaft, the rotating shaft of grading wheel through grading wheel and rotational positioning in the bearing that cylindrical shell both sides are corresponding, as shown in Figure 1, this pair of fulcrum roller fixes the mode of rotating shaft, to a certain degree solves single fulcrum transmission critical speed problem on the low side.But be usually located at outside discharger by the bearing of grading wheel discharge end, cause from certain angle of must turning back during discharger discharging, folding turn 90 degrees.Because grading wheel discharge end bearing is located at outside discharger, cause classification wheel shaft longer, the critical speed of grading wheel is difficult to further raising.
In prior art, for the ease of the location between grading wheel and rotating shaft, as shown in Figure 2, the middle part of the rear impeller disk 12 is extended with forward a taper connection sleeve 13, this taper connection sleeve to be placed on rotating shaft and to be fixedly connected with rotating shaft, the inner surface of this taper connection sleeve is with rotating shaft coaxle and the face of cylinder of matching and its outer surface is taper surface, and this taper connection sleeve is shorter, before generally only extending to deficiency from the rear impeller disk, the rear impeller disk 11, the half of 12 spacing, in order to increase rigidity, this taper connection sleeve adopts taper, there is following defect in the grading wheel structure of above-mentioned prior art: rigidity is not enough, critical speed is low, be not suitable for High Rotation Speed.
Summary of the invention
In order to solve the problem, the invention provides the two fulcrum grading wheel structure of a kind of airslide disintegrating mill, present invention improves over supporting construction and the discharging structure of grading wheel rotating shaft, improve the effectiveness of classification of airslide disintegrating mill, ensure the safe and stable operation of airslide disintegrating mill.
The present invention in order to the technical scheme solving its technical problem and adopt is:
The two fulcrum grading wheel structure of a kind of airslide disintegrating mill, comprise grading wheel, rotating shaft and discharger, grading wheel is fixedly connected on rotating shaft in center, grading wheel front has discharger, the feed end of described discharger is relative with the discharge end of described grading wheel, the charging aperture of described discharger is communicated with the discharging opening of described grading wheel, the discharging opening of described discharger and the discharging opening of described grading wheel are in the same way, one end of described rotating shaft is fixedly connected on the cylindrical shell of airslide disintegrating mill by bearing, the other end of described rotating shaft is fixedly connected in described discharger by bearing.
The present invention fixes grading wheel by two fulcrum, and compare traditional single pivot point suspending arm structure, substantially increase the critical speed of rotor, the bearing of grading wheel discharge end is fixed in discharger in addition, shortens the length of rotating shaft, can improve critical speed further again.Compared to prior art, grading wheel rotating speed can improve more than 50%, reaches fine grading effect; Moreover the discharge end of grading wheel is relative with the feed end of discharger, and the discharging opening of the discharging opening of discharger and grading wheel is in the same way, thus resistance when reducing grading wheel discharging, and then improve the operating efficiency of grading wheel.
The present invention in order to the further technical scheme solving its technical problem and adopt is:
Described grading wheel comprises the front impeller disk, the rear impeller disk and a circle blade, the described front impeller disk and the rear impeller disk lay respectively at the two ends of grading wheel, a described circle blade is fixedly connected between the front impeller disk and the rear impeller disk, there is between adjacent blade charging seam, the inner side of one circle blade forms cavity, the centre of the front impeller disk has discharging opening, the rear impeller disk is closed, the centre of the described rear impeller disk is extended with forward a branch sleeve, described branch sleeve can be placed on rotating shaft, the front end of described branch sleeve has extended radially outwardly middle leaf wheel disc, a described circle blade is fixedly connected with described middle leaf wheel disc, and described middle leaf wheel disc has the opening for circulating before and after material.The skeleton structure of grading wheel of the present invention is made up of the front impeller disk, the rear impeller disk, middle leaf wheel disc and branch sleeve, and blade is fixed on the front impeller disk, the rear impeller disk and middle leaf wheel disc simultaneously, improves the rigidity of grading wheel, is more suitable for High Rotation Speed.
Described branch sleeve be surfaces externally and internally all with the cylindricality branch sleeve of rotating shaft coaxle.
The invention has the beneficial effects as follows: the two fulcrum grading wheel structure of airslide disintegrating mill of the present invention has following advantage:
One, the present invention adopts two fulcrum to fix the rotating shaft of grading wheel, can increase substantially the critical speed of grading wheel, and the bearing of grading wheel discharge end is fixed in discharger, the length of rotating shaft can be shortened, the rotating speed of grading wheel can be improved further, make it to be applicable to high-precision classification;
Two, the discharge end of grading wheel is relative with the feed end of discharger, and the discharging opening of the discharging opening of discharger and grading wheel is in the same way, thus resistance when reducing grading wheel discharging, and then improve the operating efficiency of grading wheel;
Three, the skeleton structure of the present invention to grading wheel is improved: the skeleton structure of grading wheel of the present invention is made up of the front impeller disk, the rear impeller disk, middle leaf wheel disc and branch sleeve, blade is fixed on the front impeller disk, the rear impeller disk and middle leaf wheel disc simultaneously, improve the rigidity of grading wheel, be more suitable for High Rotation Speed.
Accompanying drawing explanation
Fig. 1 is a kind of two fulcrum grading wheel structural representations of prior art;
Fig. 2 is a kind of grading wheel skeleton structure schematic diagram of prior art;
Fig. 3 is of the present invention pair of fulcrum grading wheel structural representation;
Fig. 4 is grading wheel skeleton structure schematic diagram of the present invention.
Detailed description of the invention
Embodiment: the two fulcrum grading wheel structure of a kind of airslide disintegrating mill, comprise grading wheel 1, rotating shaft 2 and discharger 3, as shown in Figure 3, grading wheel 1 is fixedly connected on rotating shaft 2 in center, grading wheel 1 front has discharger 3, the feed end of described discharger is relative with the discharge end of described grading wheel, the charging aperture of described discharger is communicated with the discharging opening of described grading wheel, the discharging opening 31 of described discharger and the discharging opening of described grading wheel are in the same way, one end of described rotating shaft is fixedly connected on the cylindrical shell of airslide disintegrating mill by bearing, the other end of described rotating shaft is fixedly connected in described discharger by bearing.The present invention fixes grading wheel by two fulcrum, and compare traditional single pivot point suspending arm structure, substantially increase the critical speed of rotor, the bearing of grading wheel discharge end is fixed in discharger in addition, shortens the length of rotating shaft, can improve critical speed further again.Compared to prior art, grading wheel rotating speed can improve more than 50%, reaches fine grading effect; Moreover the discharge end of grading wheel is relative with the feed end of discharger, and the discharging opening of the discharging opening of discharger and grading wheel is in the same way, thus resistance when reducing grading wheel discharging, and then improve the operating efficiency of grading wheel.
As shown in Figure 4, described grading wheel 11 comprises the front impeller disk 11, the rear impeller disk 12 and a circle blade, the described front impeller disk and the rear impeller disk lay respectively at the two ends of grading wheel, a described circle blade is fixedly connected between the front impeller disk and the rear impeller disk, there is between adjacent blade charging seam, the inner side of one circle blade forms cavity, the centre of the front impeller disk has discharging opening, the rear impeller disk is closed, the centre of the described rear impeller disk is extended with forward a branch sleeve 14, described branch sleeve can be placed on rotating shaft, the front end of described branch sleeve has extended radially outwardly middle leaf wheel disc 15, a described circle blade is fixedly connected with described middle leaf wheel disc, and described middle leaf wheel disc has the opening for circulating before and after material.The skeleton structure of grading wheel of the present invention is made up of the front impeller disk, the rear impeller disk, middle leaf wheel disc and branch sleeve, and blade is fixed on the front impeller disk, the rear impeller disk and middle leaf wheel disc simultaneously, improves the rigidity of grading wheel, is more suitable for High Rotation Speed.
As shown in Figure 4, described branch sleeve 14 be surfaces externally and internally all with the cylindricality branch sleeve of rotating shaft coaxle.During concrete enforcement, be all the cylindrical shift sleeve on the face of cylinder it is preferred that described branch sleeve 14 is surfaces externally and internallies; The length of described branch sleeve 14 is greater than the half of the front impeller disk 11 and the rear impeller disk 12 distance between the two; The described front impeller disk, the rear impeller disk, middle leaf wheel disc and branch sleeve are integrated; Described blade is welded in the front impeller disk, the rear impeller disk and middle leaf wheel disc.
Claims (3)
1. the two fulcrum grading wheel structure of airslide disintegrating mill, comprise grading wheel (1), rotating shaft (2) and discharger (3), it is characterized in that: grading wheel (1) is fixedly connected on rotating shaft (2) in center, grading wheel (1) front has discharger (3), the feed end of described discharger is relative with the discharge end of described grading wheel, the charging aperture of described discharger is communicated with the discharging opening of described grading wheel, the discharging opening (31) of described discharger and the discharging opening of described grading wheel are in the same way, one end of described rotating shaft is fixedly connected on the cylindrical shell of airslide disintegrating mill by bearing, the other end of described rotating shaft is fixedly connected in described discharger by bearing.
2. the two fulcrum grading wheel structure of airslide disintegrating mill as claimed in claim 1, it is characterized in that: described grading wheel (11) comprises the front impeller disk (11), the rear impeller disk (12) and a circle blade, the described front impeller disk and the rear impeller disk lay respectively at the two ends of grading wheel, a described circle blade is fixedly connected between the front impeller disk and the rear impeller disk, there is between adjacent blade charging seam, the inner side of one circle blade forms cavity, the centre of the front impeller disk has discharging opening, the rear impeller disk is closed, the centre of the described rear impeller disk is extended with forward a branch sleeve (14), described branch sleeve can be placed on rotating shaft, the front end of described branch sleeve has extended radially outwardly middle leaf wheel disc (15), a described circle blade is fixedly connected with described middle leaf wheel disc, and described middle leaf wheel disc has the opening for circulating before and after material.
3. the two fulcrum grading wheel structure of airslide disintegrating mill as claimed in claim 2, is characterized in that: described branch sleeve (14) be surfaces externally and internally all with the cylindricality branch sleeve of rotating shaft coaxle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310226916.4A CN104226456B (en) | 2013-06-08 | 2013-06-08 | The double fulcrum grading wheel structure of jet mill |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310226916.4A CN104226456B (en) | 2013-06-08 | 2013-06-08 | The double fulcrum grading wheel structure of jet mill |
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| Publication Number | Publication Date |
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| CN104226456A true CN104226456A (en) | 2014-12-24 |
| CN104226456B CN104226456B (en) | 2016-09-28 |
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| CN201310226916.4A Expired - Fee Related CN104226456B (en) | 2013-06-08 | 2013-06-08 | The double fulcrum grading wheel structure of jet mill |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106669948A (en) * | 2017-02-10 | 2017-05-17 | 广州中卓智能装备有限公司 | Superfine turbine air classification wheel main piece |
| CN110090797A (en) * | 2019-04-23 | 2019-08-06 | 新德隆特种陶瓷（大连）有限公司 | A kind of integral type silicon nitride all-ceramic high-precision grading wheel |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH04349944A (en) * | 1991-05-17 | 1992-12-04 | Ube Ind Ltd | Vertical crusher |
| CN1569621A (en) * | 2004-05-10 | 2005-01-26 | 包头市晶元石墨有限责任公司 | Processing technology and system for high-purity fine crystalline graphite powder |
| CN202061677U (en) * | 2011-01-19 | 2011-12-07 | 三环瓦克华（北京）磁性器件有限公司 | Powder screening device for sintering NdFeB (neodymium iron boron) magnet material |
| CN202114015U (en) * | 2011-05-25 | 2012-01-18 | 潍坊市精华粉体工程设备有限公司 | Grading impeller |
| CN102773139A (en) * | 2011-05-09 | 2012-11-14 | 密友集团有限公司 | Method and equipment for manufacturing of ultrafine particles |
| CN203281382U (en) * | 2013-06-08 | 2013-11-13 | 昆山市密友装备制造有限责任公司 | Double- fulcrum classifying wheel structure of jet mill |
-
2013
- 2013-06-08 CN CN201310226916.4A patent/CN104226456B/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH04349944A (en) * | 1991-05-17 | 1992-12-04 | Ube Ind Ltd | Vertical crusher |
| CN1569621A (en) * | 2004-05-10 | 2005-01-26 | 包头市晶元石墨有限责任公司 | Processing technology and system for high-purity fine crystalline graphite powder |
| CN202061677U (en) * | 2011-01-19 | 2011-12-07 | 三环瓦克华（北京）磁性器件有限公司 | Powder screening device for sintering NdFeB (neodymium iron boron) magnet material |
| CN102773139A (en) * | 2011-05-09 | 2012-11-14 | 密友集团有限公司 | Method and equipment for manufacturing of ultrafine particles |
| CN202114015U (en) * | 2011-05-25 | 2012-01-18 | 潍坊市精华粉体工程设备有限公司 | Grading impeller |
| CN203281382U (en) * | 2013-06-08 | 2013-11-13 | 昆山市密友装备制造有限责任公司 | Double- fulcrum classifying wheel structure of jet mill |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106669948A (en) * | 2017-02-10 | 2017-05-17 | 广州中卓智能装备有限公司 | Superfine turbine air classification wheel main piece |
| CN110090797A (en) * | 2019-04-23 | 2019-08-06 | 新德隆特种陶瓷（大连）有限公司 | A kind of integral type silicon nitride all-ceramic high-precision grading wheel |
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| Publication number | Publication date |
|---|---|
| CN104226456B (en) | 2016-09-28 |
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Address after: 215300, No. 16 South hope road, Yushan Town, Kunshan City, Jiangsu, Suzhou Applicant after: JiangSu Miyou Powder New Equipment Manufacturing Co., Ltd. Address before: 215300, No. 16 South hope road, Yushan Town, Kunshan City, Jiangsu, Suzhou Applicant before: KUNSHAN MIYOU EQUIPMENT MANUFACTURING CO., LTD. |
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Granted publication date: 20160928 Termination date: 20210608 |
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| CF01 | Termination of patent right due to non-payment of annual fee |