CN2527754Y - Safety explosion-proof convection rotary main ventilator for mine - Google Patents
Safety explosion-proof convection rotary main ventilator for mine Download PDFInfo
- Publication number
- CN2527754Y CN2527754Y CN 01280130 CN01280130U CN2527754Y CN 2527754 Y CN2527754 Y CN 2527754Y CN 01280130 CN01280130 CN 01280130 CN 01280130 U CN01280130 U CN 01280130U CN 2527754 Y CN2527754 Y CN 2527754Y
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- CN
- China
- Prior art keywords
- bearing
- series
- gap
- ventilator
- point contact
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- 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 - Lifetime
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- Structures Of Non-Positive Displacement Pumps (AREA)
- Rolling Contact Bearings (AREA)
Abstract
The utility model provides a safe and reliable mine explosion prevention disrotatory main ventilator which is characterized in that the configuration of bearings in a bearing device at the extending end of a motor shaft of the ventilator includes a cylindrical roller bearing of a UN series and a four-point contact ball bearing of a QJ series; wherein the four-point contact ball bearing of the UN series bears two-directional axial load while the cylindrical roller bearings of the QJ series bears radial load; an oil slinger is arranged outside the bearing of the UN series and the outside surface of the oil slinger is in parallel with the inside surface of the bearing, with a gap in between; and a gap is also arranged between the oil slinger and the outside cover of the bearing of the UN series. Compared with the prior art, the utility model can avoid too quick slinging of bearing grease and guarantee the ventilator to work safely and reliably.
Description
Technical field:
The utility model belongs to the technical field of explosion-proof main fan, is a kind of safe and reliable mine anti-explosion convection rotary type main fan.
Background technique:
Mine anti-explosion convection rotary type main fan is used in the place of explosive atmosphere, and it is important that its explosion-proof security causes the pass, directly relates to the heavy losses of personal safety and business property.Its safe and reliable long-time running is related to the steady and continuous that the mine produces.
Unreasonable in the bearing means design that exists fan motor with mine anti-explosion convection rotary type main fan at present, " seize " often can not stablize long-time running, and the used braking device of blower fan is non-anti-explosion product in addition, exists unsafe factor.
Summary of the invention:
The purpose of this utility model is a kind of mine anti-explosion convection rotary type main fan safe and reliable to operation of design.
The technical solution of the utility model is to improve to form on the basis of former mining explosion-proof convection rotary type main fan, comprise the bearing means and the two-part improvement of braking device of fan motor, the NU series garden that the is configured to post roller bearing that is fan motor shaft extension step bearing device bearing adds QJ series four-point contact ball, QJ series four-point contact ball bears the bi-directional axial load, NU series garden post roller bearing bears radial load, the bearing outside is provided with disc, the inner side surface of disc is parallel with the outer side surface of bearing, be provided with the gap between the bi-side, be provided with the gap between disc and the bearing end cover.
Because the utility model has been taked technique scheme, compared with prior art, it is too fast, safe and reliable to operation to avoid bearing grease to get rid of oil.
Description of drawings:
Fig. 1 is the structural representation of the bearing means that adopts of this main fan.
Embodiment:
Referring to Fig. 1, bearing 1 in the utility model is to select entrance rolling bearing NU series garden post roller bearing for use, only bear radial load, bearing 2 is to select entrance rolling bearing QJ series four-point contact ball for use, only bears axial load, the design bearing life-span was above 100,000 hours, the outside of bearing 1 is provided with disc 3, and the inner side surface of disc 3 is parallel with the outer side surface of bearing, and the gap between the both sides is 3.5mm, the gap of disc and bearing end cover is 1.5mm, and it is too fast to avoid getting rid of oil.
Claims (1)
1, a kind of safe and reliable mine anti-explosion convection rotary type main fan, has ventilator, the NU series garden that the is configured to post roller bearing that it is characterized in that fan motor shaft extension step bearing device bearing adds QJ series four-point contact ball, QJ series four-point contact ball bears the bi-directional axial load, NU series garden post roller bearing bears radial load, the bearing outside is provided with disc, the inner side surface of disc is parallel with the outer side surface of bearing, be provided with the gap between the bi-side, be provided with the gap between disc and the bearing end cover.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01280130 CN2527754Y (en) | 2001-12-31 | 2001-12-31 | Safety explosion-proof convection rotary main ventilator for mine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01280130 CN2527754Y (en) | 2001-12-31 | 2001-12-31 | Safety explosion-proof convection rotary main ventilator for mine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2527754Y true CN2527754Y (en) | 2002-12-25 |
Family
ID=33683216
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 01280130 Expired - Lifetime CN2527754Y (en) | 2001-12-31 | 2001-12-31 | Safety explosion-proof convection rotary main ventilator for mine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2527754Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101834480A (en) * | 2010-05-26 | 2010-09-15 | 山西防爆电机（集团）有限公司 | Special motor bearing combining device of contra-rotating fan |
| CN102305215A (en) * | 2011-08-03 | 2012-01-04 | 孝感学院 | Two-stage disrotatory axial-flow-type main ventilator for mining |
| CN109494923A (en) * | 2019-01-07 | 2019-03-19 | 中车大连机车研究所有限公司 | AC drive locomotive traction motor bearings non-transmision end mounting structure |
-
2001
- 2001-12-31 CN CN 01280130 patent/CN2527754Y/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101834480A (en) * | 2010-05-26 | 2010-09-15 | 山西防爆电机（集团）有限公司 | Special motor bearing combining device of contra-rotating fan |
| CN102305215A (en) * | 2011-08-03 | 2012-01-04 | 孝感学院 | Two-stage disrotatory axial-flow-type main ventilator for mining |
| CN109494923A (en) * | 2019-01-07 | 2019-03-19 | 中车大连机车研究所有限公司 | AC drive locomotive traction motor bearings non-transmision end mounting structure |
| CN109494923B (en) * | 2019-01-07 | 2024-04-16 | 中国国家铁路集团有限公司 | Non-transmission end mounting structure of traction motor bearing of alternating current transmission locomotive |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CX01 | Expiry of patent term |
Expiration termination date: 20111231 Granted publication date: 20021225 |