CN204710536U - Jet mill grinding equipment rotating shaft bearing protection device - Google Patents
Jet mill grinding equipment rotating shaft bearing protection device Download PDFInfo
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- CN204710536U CN204710536U CN201520388030.4U CN201520388030U CN204710536U CN 204710536 U CN204710536 U CN 204710536U CN 201520388030 U CN201520388030 U CN 201520388030U CN 204710536 U CN204710536 U CN 204710536U
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- annular housing
- rotating shaft
- bearing
- jet mill
- protection device
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Abstract
The utility model discloses a kind of jet mill grinding equipment rotating shaft bearing protection device, comprise annular housing, the upper and lower end face of described annular housing offers respectively the through hole passed through for rotating shaft, the sidewall of described annular housing is provided with and is communicated with the inner chamber of described annular housing and the airflow duct of outside atmosphere; Described airflow duct is provided with air purifier.Jet mill grinding equipment rotating shaft bearing protection device of the present utility model; under suction function in pulverizing chamber; air in atmosphere outside is inhaled in annular housing along airflow duct, air inlet joint after the filtration of air purifier; the oil sealing of countershaft bearing defines hermetic seal band; effectively prevent micro powder granule and enter in bearing the problem causing bearing heel and toe wear, extend the service life of bearing.
Description
Technical field
The utility model relates to disintegrating apparatus technical field, specifically, relates to a kind of jet mill grinding equipment rotating shaft bearing protection device.
Background technology
In recent years, along with the development of science and technology, day by day increase, to the requirement also increasingly stringent of powder quality in the demand of various fields to the superfine powder of micron order or submicron order, Jet Mill, as research of super-pine crush equipment, plays important effect in many industries.
In actual production, airslide disintegrating mill and cyclone separator, deduster and air-introduced machine form a whole set of crushing system.Compressed air is after filtration drying, crushing chamber is injected by nozzle at high speeds, at the joint place material of multiply high pressure draught by impact several times, friction, shear and pulverize, material after pulverizing is under the draft effect of air-introduced machine, graded region is moved to ascending air, in graded region, the rotating shaft be in transmission connection with the output shaft of motor drives stage turbine High Rotation Speed, rotating shaft is rotationally connected with in the cylindrical shell of airslide disintegrating mill by bearing, under the powerful centrifugal action that the stage turbine of High Rotation Speed produces, make thickness feed separation, the fine grained meeting granularity requirements enters cyclone separator and deduster collection by stage turbine, coarse granule drops to disintegrating area to be continued to pulverize.
In existing this disintegrating apparatus, the bearing protecting the rotating shaft of stage turbine is crucial, and rotating shaft runs under high concentration powder ambient condition, and bearing is easy to damage.Generally take to arrange the means such as oil sealing, seal ring, felt in the side of bearing at present, effect is all undesirable, still easily causes bearing to enter micro powder granule, cause bearing heel and toe wear, production cost strengthens, and maintenance load strengthens, affect output, affect the performance of enterprises.
Utility model content
Technical problem to be solved in the utility model is: provide a kind of jet mill grinding equipment rotating shaft bearing protection device protecting bearing effect good.
For solving the problems of the technologies described above, the technical solution of the utility model is:
Jet mill grinding equipment rotating shaft bearing protection device, comprise annular housing, described annular housing comprises annular sidewall and blocks up the end face being located at the upper and lower two ends of described annular sidewall respectively, the upper and lower end face of described annular housing offers respectively the through hole passed through for rotating shaft, the sidewall of described annular housing is provided with and is communicated with the inner chamber of described annular housing and the airflow duct of outside atmosphere; Described airflow duct is provided with air purifier.
Preferably, the sidewall of described annular housing is provided with air inlet joint, and an end of described airflow duct is inserted in described air inlet joint.
Preferably, the other end of described airflow duct is connected to the outlet side of described air purifier, and the inlet end of described air purifier is communicated with outside atmosphere.
After have employed technique scheme, the beneficial effects of the utility model are:
The utility model provides a kind of jet mill grinding equipment rotating shaft bearing protection device, during use, the annular housing of protective device is sheathed on the outside of the oil sealing of rotating shaft upper bearing (metal), is close to the lateral surface of oil sealing.Because jet mill grinding equipment is in running, under the draft effect of air-introduced machine and the centrifugal action of stage turbine, in negative pressure state in the pulverizing chamber of gas crushing and classification equipment.And under suction function in pulverizing chamber, air in atmosphere outside is inhaled in annular housing along airflow duct, air inlet joint after the filtration of air purifier, the oil sealing of countershaft bearing defines hermetic seal band, effectively prevent micro powder granule and enter in bearing the problem causing bearing heel and toe wear, extend the service life of bearing.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, the utility model is described in further detail:
Fig. 1 is structural representation of the present utility model;
In figure: 1, pulverizing chamber; 11, air-introduced machine connector; 2, classification motor; 3, rotating shaft; 4, bearing; 5, oil sealing; 6, annular housing; 7, air inlet joint; 8, airflow duct; 9, air purifier.
Detailed description of the invention
In order to make the purpose of this utility model, technical scheme and advantage clearly understand, below in conjunction with drawings and Examples, the utility model is further elaborated.Should be appreciated that specific embodiment described herein only in order to explain the utility model, and be not used in restriction the utility model.
With reference to Fig. 1, the jet mill grinding equipment rotating shaft bearing protection device of the present embodiment is arranged in the pulverizing chamber 1 of jet mill grinding equipment, comprise the annular housing 6 be sheathed in rotating shaft 3, annular housing 6 comprises annular sidewall, and block up the end face being located at the upper and lower two ends of annular sidewall respectively, annular housing 6 is located at the outside of the oil sealing 5 of rotating shaft 3 upper bearing (metal) 4, the lateral surface being close to oil sealing 5 is arranged, the upper and lower end face of annular housing 6 offers respectively the through hole passed through for rotating shaft 3, the sidewall of annular housing 6 is provided with and is communicated with the inner chamber of annular housing 6 and the airflow duct 8 of outside atmosphere, airflow duct 8 is provided with air purifier 9.The top of pulverizing chamber 1 is provided with the air-introduced machine connector 11 for being connected to air-introduced machine.
In the present embodiment, the sidewall of annular housing 6 is provided with air inlet joint 7, and air inlet joint 7 can adopt gas-tpe fitting, and an end of airflow duct 8 is inserted in moral 7.The other end of airflow duct 8 is connected to the outlet side of air purifier 9, and the inlet end of air purifier 9 is communicated with outside atmosphere.
Present embodiments provide a kind of jet mill grinding equipment rotating shaft bearing protection device, during use, the annular housing 6 of protective device is sheathed on the outside of the oil sealing 5 of rotating shaft 3 upper bearing (metal) 4, is close to the lateral surface of oil sealing 5.Because jet mill grinding equipment is in running, under the draft effect of air-introduced machine and the centrifugal action of stage turbine, in negative pressure state in the pulverizing chamber 1 of gas crushing and classification equipment.And under suction function in pulverizing chamber 1, air in atmosphere outside is inhaled in annular housing 6 along airflow duct 8, air inlet joint 7 after the filtration of air purifier 9, the oil sealing 5 of countershaft bearing 4 defines hermetic seal band, effectively prevent micro powder granule and enter the problem causing bearing 4 heel and toe wear in bearing 4, extend the service life of bearing 4.
The above is the citing of the utility model preferred forms, and the part wherein do not addressed in detail is the common practise of those of ordinary skill in the art.Protection domain of the present utility model is as the criterion with the content of claim, and any equivalent transformation carried out based on technology enlightenment of the present utility model, also within protection domain of the present utility model.
Claims (3)
1. jet mill grinding equipment rotating shaft bearing protection device, it is characterized in that: comprise annular housing, described annular housing comprises annular sidewall and blocks up the end face being located at the upper and lower two ends of described annular sidewall respectively, the upper and lower end face of described annular housing offers respectively the through hole passed through for rotating shaft, the sidewall of described annular housing is provided with and is communicated with the inner chamber of described annular housing and the airflow duct of outside atmosphere; Described airflow duct is provided with air purifier.
2. jet mill grinding equipment rotating shaft bearing protection device as claimed in claim 1, is characterized in that: the sidewall of described annular housing is provided with air inlet joint, and an end of described airflow duct is inserted in described air inlet joint.
3. jet mill grinding equipment rotating shaft bearing protection device as claimed in claim 2, is characterized in that: the other end of described airflow duct is connected to the outlet side of described air purifier, and the inlet end of described air purifier is communicated with outside atmosphere.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520388030.4U CN204710536U (en) | 2015-06-08 | 2015-06-08 | Jet mill grinding equipment rotating shaft bearing protection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520388030.4U CN204710536U (en) | 2015-06-08 | 2015-06-08 | Jet mill grinding equipment rotating shaft bearing protection device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204710536U true CN204710536U (en) | 2015-10-21 |
Family
ID=54309566
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520388030.4U Active CN204710536U (en) | 2015-06-08 | 2015-06-08 | Jet mill grinding equipment rotating shaft bearing protection device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204710536U (en) |
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2015
- 2015-06-08 CN CN201520388030.4U patent/CN204710536U/en active Active
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| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |