CN203308940U - Special pressurizing device for bearing air sealing cover - Google Patents
Special pressurizing device for bearing air sealing cover Download PDFInfo
- Publication number
- CN203308940U CN203308940U CN2013203511090U CN201320351109U CN203308940U CN 203308940 U CN203308940 U CN 203308940U CN 2013203511090 U CN2013203511090 U CN 2013203511090U CN 201320351109 U CN201320351109 U CN 201320351109U CN 203308940 U CN203308940 U CN 203308940U
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- Prior art keywords
- tube
- rubber
- bearing
- connecting tube
- pressurizing
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- Expired - Fee Related
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- 238000007789 sealing Methods 0.000 title claims abstract description 14
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 22
- 239000010959 steel Substances 0.000 claims abstract description 22
- 210000004907 gland Anatomy 0.000 claims description 10
- 239000003595 mist Substances 0.000 abstract description 4
- 238000005452 bending Methods 0.000 abstract 2
- 238000001816 cooling Methods 0.000 description 2
- 239000000314 lubricant Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000033558 biomineral tissue development Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000001095 motoneuron effect Effects 0.000 description 1
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- Sealing Of Bearings (AREA)
Abstract
The utility model discloses a special pressurizing device for a bearing air sealing cover. The special pressurizing device comprises a motor shell, a motor core shaft, a fan impeller, a bearing seat and an inner bearing cover, wherein a first pressurizing assembly and a second pressurizing assembly are fixedly connected to the bearing seat; the first pressurizing assembly consists of a long steel pipe, a bending pipe, a connection pipe and a long rubber pipe; one end of the first pressurizing assembly is communicated with external atmosphere, and the other end of the first pressurizing assembly is positioned between the inner bearing cover and the fan impeller; the second pressurizing assembly consists of a short steel pipe, a side-hole bending pipe, a connection pipe and a short rubber pipe; one end of the second pressurizing assembly is communicated with the external atmosphere, and the other end of the second pressurizing assembly is fixed on the inner bearing cover and is communicated with a cavity of the inner bearing cover. The special pressurizing device for the bearing air sealing cover is simple in structure; the first pressurizing assembly and the second pressurizing assembly are communicated with the external atmosphere and a negative pressure region outside the inner bearing cover, and the negative pressure outside the inner bearing cover is neutralized by the atmospheric pressure, so that the oil of a bearing is effectively prevented from being leaked into a motor in an oil mist form.
Description
Technical field:
The utility model relates to the ventilated machine technical field, more specifically to the special-purpose supercharging device of a kind of bearing sealing gland lid.
Background technique:
Internal fan all is equipped with in general box ventilated machine inside at present, to guarantee air circulation in motor, plays the cooling motor effect.But due to fan often from bearing sealing gland lid close to, easily at sealing gland lid periphery, form negative pressuren zone, cause bearing cavity and sealing gland lid to form pressure reduction, the lubricant oil of bearing cavity will suck motor internal through seal clearance with the mist of oil form like this, causes motor internal greasy dirt or oil leakage phenomenon to occur.Do not solving under negative pressure condition at present, the simple sealing number of plies or the increase impingement ring of increasing, can only temporarily deal with problems, and can not fundamentally solve the negative pressure oil leakage phenomenon.
The model utility content:
The purpose of this utility model is exactly the deficiency for prior art, and provides a kind of bearing sealing gland lid special-purpose supercharging device, and it is simple in structure, is conducive to reduce the negative pressure in the internal bearing cover outside, thereby prevents the bearing leakage of oil.
Technology solution of the present utility model is as follows:
The special-purpose supercharging device of a kind of bearing sealing gland lid, comprise electric machine casing, motor mandrel, blast fan, bearing support and internal bearing cover, on bearing support, be fixedly connected with the first pressurizing pack and the second pressurizing pack, the first pressurizing pack is comprised of long steel pipe, bend pipe, connecting tube and rubber long tube, one end of long steel pipe is fixed on bearing support and is connected with outside atmosphere, the other end of long steel pipe is fixed together by bend pipe and connecting tube, the other end of connecting tube is fixedly connected on the rubber long tube, and the other end of rubber long tube is between internal bearing cover and blast fan;
Described the second pressurizing pack is comprised of short steel pipes, side opening bend pipe, connecting tube and rubber short tube, one end of short steel pipes is fixed on bearing support and is connected with outside atmosphere, the other end of short steel pipes is fixedly connected with on rubber short tube with connecting tube by the side opening bend pipe, the other end of rubber short tube is fixedly connected with connecting tube, and connecting tube is fixed on internal bearing cover and is connected with the internal bearing cover chamber.
Connecting tube sleeve in described the first pressurizing pack is fixed on the rubber long tube by anchor ear in the rubber long tube, the connecting tube sleeve in the second pressurizing pack is fixed on rubber short tube by anchor ear 44 in rubber short tube.
The beneficial effects of the utility model are:
It is simple in structure, and it utilizes the first pressurizing pack and the second pressurizing pack to be communicated with the negative pressuren zone in outside atmosphere and the internal bearing cover outside, by barometric pressure and the negative pressure in the internal bearing cover outside, thereby effectively prevent bearing with the mist of oil form to the motor internal leakage of oil.
The accompanying drawing explanation:
Fig. 1 is the structural representation in motor of the present utility model;
Fig. 2 is the structural representation of the first pressurizing pack 4 in Fig. 1;
Fig. 3 is the structural representation of the second pressurizing pack 6 in Fig. 1.
In figure: 1, electric machine casing; 2, motor mandrel; 3, blast fan; 4, the first pressurizing pack; 5, bearing support; 6, the second pressurizing pack; 7, internal bearing cover; 41, long steel pipe; 42, bend pipe; 43, connecting tube; 44, anchor ear; 45, rubber long tube; 61, short steel pipes; 62, side opening bend pipe; 63, rubber short tube.
Embodiment:
Embodiment: see Fig. 1, 2, shown in 3, the special-purpose supercharging device of a kind of bearing sealing gland lid, comprise electric machine casing 1, motor mandrel 2, blast fan 3, bearing support 5 and internal bearing cover 7, on bearing support 5, be fixedly connected with the first pressurizing pack 4 and the second pressurizing pack 6, the first pressurizing pack 4 is by long steel pipe 41, bend pipe 42, connecting tube 43 and rubber long tube 45 form, one end of long steel pipe 41 is fixed on bearing support 5 and is connected with outside atmosphere, the other end of long steel pipe 41 is fixed together by bend pipe 42 and connecting tube 43, the other end of connecting tube 43 is fixedly connected on rubber long tube 45, the other end of rubber long tube 45 is between internal bearing cover 7 and blast fan 3,
Described the second pressurizing pack 6 is comprised of short steel pipes 61, side opening bend pipe 62, connecting tube 43 and rubber short tube 63, one end of short steel pipes 61 is fixed on bearing support 5 and is connected with outside atmosphere, the other end of short steel pipes 61 is fixedly connected with on rubber short tube 63 with connecting tube 43 by side opening bend pipe 62, the other end of rubber short tube 63 is fixedly connected with connecting tube 43, and connecting tube 43 is fixed on internal bearing cover 7 and is connected with the internal bearing cover chamber.
Connecting tube 43 sleeves in described the first pressurizing pack 4 are fixed on rubber long tube 45 by anchor ear 44 in rubber long tube 45, connecting tube 43 sleeves in the second pressurizing pack 6 are fixed on rubber short tube 63 by anchor ear 44 in rubber short tube 63.
Working principle: when electric motor starting, motor mandrel 2 drives the cooling blower rotation, and blast fan 3 forms low pressure area near the bearing side, and the opposite side of blast fan 3 forms zone of high pressure, cause bearing cavity and bearing outside mineralization pressure poor, one end of the first pressurizing pack 4 is connected on bearing support 5 and is connected with outside atmosphere, the other end is positioned at negative pressuren zone, one end of the second pressurizing pack 6 also is connected on bearing support 5 and is connected with outside atmosphere, the other end is connected on internal bearing cover and with the inner cap chamber of bearing and is connected, the inner cap chamber of bearing is the adapter cavity in bearing cavity and the bearing outside, the second pressurizing pack 6 side opening elbows also are positioned at negative pressuren zone simultaneously, thereby external pressure enters negative pressuren zone by the pipeline of the first pressurizing pack 4 and the second pressurizing pack 6, balance the pressure reduction in bearing cavity and the bearing outside, thereby can not make the lubricant oil in bearing enter in motor and cause the leakage of oil imagination with the form of mist of oil.
Claims (2)
1. a bearing sealing gland is covered special-purpose supercharging device, comprise electric machine casing (1), motor mandrel (2), blast fan (3), bearing support (5) and internal bearing cover (7), it is characterized in that: on bearing support (5), be fixedly connected with the first pressurizing pack (4) and the second pressurizing pack (6), the first pressurizing pack (4) is by long steel pipe (41), bend pipe (42), connecting tube (43) and rubber long tube (45) form, one end of long steel pipe (41) is fixed on bearing support (5) and is connected with outside atmosphere, the other end of long steel pipe (41) is fixed together by bend pipe (42) and connecting tube (43), the other end of connecting tube (43) is fixedly connected on rubber long tube (45), the other end of rubber long tube (45) is positioned between internal bearing cover (7) and blast fan (3),
Described the second pressurizing pack (6) is comprised of short steel pipes (61), side opening bend pipe (62), connecting tube (43) and rubber short tube (63), one end of short steel pipes (61) is fixed on bearing support (5) and is connected with outside atmosphere, the other end of short steel pipes (61) is fixedly connected with on rubber short tube (63) with connecting tube (43) by side opening bend pipe (62), the other end of rubber short tube (63) is fixedly connected with connecting tube (43), and connecting tube (43) is fixed on internal bearing cover (7) and above with the internal bearing cover chamber, is connected.
2. a kind of bearing sealing gland according to claim 1 is covered special-purpose supercharging device, it is characterized in that: connecting tube (43) sleeve in described the first pressurizing pack (4) is fixed on rubber long tube (45) by anchor ear (44) in rubber long tube (45) upper, and connecting tube (43) sleeve in the second pressurizing pack (6) is fixed on rubber short tube (63) by anchor ear (44) in rubber short tube (63).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013203511090U CN203308940U (en) | 2013-06-17 | 2013-06-17 | Special pressurizing device for bearing air sealing cover |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013203511090U CN203308940U (en) | 2013-06-17 | 2013-06-17 | Special pressurizing device for bearing air sealing cover |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203308940U true CN203308940U (en) | 2013-11-27 |
Family
ID=49615153
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013203511090U Expired - Fee Related CN203308940U (en) | 2013-06-17 | 2013-06-17 | Special pressurizing device for bearing air sealing cover |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203308940U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103790872A (en) * | 2014-01-16 | 2014-05-14 | 成都科创佳思科技有限公司 | Pressurizing device |
-
2013
- 2013-06-17 CN CN2013203511090U patent/CN203308940U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103790872A (en) * | 2014-01-16 | 2014-05-14 | 成都科创佳思科技有限公司 | Pressurizing device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20131127 |
|
| CU01 | Correction of utility model | ||
| CU01 | Correction of utility model |
Correction item: Termination upon expiration of patent Correct: Revocation of Patent Expiration and Termination False: On July 4, 2023, the expiration and termination of the 39 volume 2701 patent Number: 27-01 Volume: 39 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20131127 |