CN211010740U - Automatic waste grease collecting device for bearing end cover of generator - Google Patents
Automatic waste grease collecting device for bearing end cover of generator Download PDFInfo
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- CN211010740U CN211010740U CN201922070716.XU CN201922070716U CN211010740U CN 211010740 U CN211010740 U CN 211010740U CN 201922070716 U CN201922070716 U CN 201922070716U CN 211010740 U CN211010740 U CN 211010740U
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- grease
- bearing
- generator
- sealing cover
- outer sealing
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Abstract
The utility model discloses an automatic waste grease collecting device for a bearing end cover of a generator, which comprises a bearing outer sealing cover, a grease throwing disc, a stepping motor, a speed reducer, a grease discharger, a spiral propelling shaft and a collector; the output shaft of the motor is connected with the spiral propelling shaft through a speed reducer; the grease discharging device is provided with a circular inner tube, and a grease inlet and a grease outlet are formed in the grease discharging device; the grease discharging device is connected with the bearing outer sealing cover, and a grease inlet of the grease discharging device is connected with a grease discharging port of the bearing outer sealing cover; the grease outlet is arranged at the rear end of the grease discharger and is connected with the collector; the grease throwing disc is arranged on a rotating shaft of the generator in the bearing outer sealing cover; the spiral propelling shaft is arranged in the circular inner tube of the grease discharging device. The utility model discloses simple structure, convenient operation, it is with low costs, moreover the utility model discloses prolonged the time interval of bearing periodic maintenance, reduced field maintenance personnel's intensity of labour, it can be according to the grease discharging condition in the bearing, adjusts useless fat collection ability in real time, and it is extravagant to reduce the energy.
Description
Technical Field
The utility model belongs to the technical field of the bearing end cover, specifically relate to a useless fat automatic collection device for generator bearing end cover.
Background
In the design structure of the end cover of the grease lubrication rolling bearing of the generator, a bearing grease discharging structure is designed, a grease throwing disk is generally arranged on a rotor shaft of the generator at the inner side of a bearing outer sealing cover as shown in figure 1, when excessive grease is supplemented in a bearing chamber, the excessive grease in the bearing chamber is thrown out through the centrifugal force adjusting action of the grease throwing disk, so that the bearing temperature is prevented from being sharply increased due to excessive grease in the bearing chamber, and bearing faults such as leakage to the inside of the generator and the like due to excessive grease are avoided. According to the bearing grease discharging structure, discharged grease generally enters an inner cavity of an outer sealing cover of an end cover, and then falls into a waste grease collecting box at the lower part of a grease discharging port of the outer sealing cover under the action of gravity. Because the fluidity of the lubricating grease is poor, most of the waste grease falls into the inner cavity of the outer sealing cover and only a small part of the waste grease really falls into the waste grease collecting box at the lower part of the grease discharging port of the outer sealing cover. Therefore, when maintenance personnel maintain and maintain the generator bearing, the outer sealing cover of the bearing needs to be opened regularly and the waste grease collecting box needs to be taken down, and waste grease in the inner cavity of the outer sealing cover and the waste grease collecting box is cleaned. When the wind driven generator is maintained, the outer sealing cover needs to be completely detached to clean waste grease, and a plurality of generator parts need to be detached firstly, so that time and labor are wasted, and the generating efficiency of the generator is influenced. Therefore, on-site maintenance personnel usually loosen the screw and open a gap of dozens of millimeters to clean waste grease under the condition of not completely detaching the outer sealing cover, and the cleaning effect can be known. For the above reasons, the generator safety accident is easily caused during the long-term use of the generator bearing. This is often the case in some motor and generator uses where maintenance is not convenient, such as in wind turbine end caps.
SUMMERY OF THE UTILITY MODEL
In order to solve the technical problem, the utility model provides a simple structure, convenient operation can prolong the time interval of bearing periodic maintenance, and can realize automatic control, reduces the useless fat automatic collection device of generator bearing end cover that is used for of field maintenance personnel intensity of labour.
The utility model adopts the technical proposal that: an automatic waste grease collecting device for a bearing end cover of a generator comprises a bearing outer sealing cover, a grease throwing disc, a motor, a speed reducer, a grease discharger, a spiral propelling shaft and a collector; the output shaft of the motor is connected with the spiral propelling shaft through a speed reducer; the grease discharging device is provided with a circular inner tube, and a grease inlet and a grease outlet which are communicated with a central hole of the circular inner tube are formed in the grease discharging device; the spiral propelling shaft is arranged in the circular inner pipe of the grease discharging device and is coaxial with the circular inner pipe; the grease discharging device is connected with the bearing outer sealing cover, and a grease inlet of the grease discharging device is connected with a grease discharging port of the bearing outer sealing cover; the grease outlet is arranged at the rear end of the grease discharger and is connected with the collector; and the grease throwing disc is arranged on a rotating shaft of the generator in the bearing outer sealing cover.
In the automatic waste grease collecting device for the bearing end cover of the generator, the grease scraping sheet is arranged on the outer diameter surface of the grease throwing disc.
In the automatic waste grease collecting device for the bearing end cover of the generator, the number of the grease scraping sheets is 2-4, and the grease scraping sheets are uniformly arranged on the outer diameter surface of the grease throwing disc along the circumferential direction.
Compared with the prior art, the beneficial effects of the utility model are that:
the utility model discloses simple structure, convenient operation, it is with low costs, moreover the utility model discloses a structure that step motor and spiral extrusion mechanism combined together, combine to be equipped with the design of scraping the fat piece on getting rid of fat dish external diameter surface, overcome grease mobility poor, only rely on the technological problem that getting rid of fat dish grease discharging difficulty, realized the automatic collection of waste fat, when the collector is full of collection, fall the waste fat in the container by the maintainer, the volume of collector is far greater than outer closing cap inner chamber, consequently prolonged the time interval of bearing periodic maintenance, reduced field maintenance personnel's intensity of labour, reduced generator bearing trouble; and the utility model discloses a step motor can adjust useless fat collection ability in real time according to the grease discharging condition in the bearing as collecting power, reduces the energy extravagant.
Drawings
Fig. 1 is a structural diagram of a grease discharging mechanism of a conventional bearing end cap.
Fig. 2 is a front view of the present invention.
Fig. 3 is a view from direction a in fig. 2.
Detailed Description
The present invention will be further described with reference to the accompanying drawings.
As shown in fig. 2 and 3, the utility model comprises an outer sealing cover 1, a grease throwing disk 2, a stepping motor 9, a reducer 10, a grease discharger 4, a screw propulsion shaft 5 and a collector 8; the output shaft of the stepping motor 9 is connected with the input shaft of the speed reducer 10, the output shaft of the speed reducer 10 is connected with the coupler 3, and the coupler 3 is connected with the spiral propelling shaft 5. The grease discharging device 4 is provided with a circular inner tube, and the grease discharging device 4 is provided with a grease inlet 6 and a grease outlet 7 which are communicated with the central hole of the circular inner tube. The spiral propelling shaft 5 is arranged in the circular inner pipe of the grease discharging device 4 and is coaxial with the circular inner pipe. The grease discharging device 4 is connected with the outer sealing cover 1, and a grease inlet of the grease discharging device 4 is connected with a grease discharging port 11 of the outer sealing cover 1; the grease outlet 7 is arranged at the rear end of the grease discharging device 4 and is connected with the collector 8. The grease throwing disk 2 is arranged on a rotating shaft of the generator in the outer sealing cover 1, 2-4 grease scraping sheets are arranged on the outer diameter surface of the grease throwing disk 2, and the grease scraping sheets are uniformly arranged on the outer diameter surface of the grease throwing disk along the circumferential direction.
The utility model discloses a theory of operation does: and grease discharging of the bearing end cover is realized by discharging part of excessive grease in the bearing under the action of centrifugal force generated by rotation through the grease throwing disc 2. The discharged redundant grease firstly enters the inner cavity of the outer sealing cover 1, and when the grease throwing disc 2 rotates, the grease discharged into the inner cavity of the outer sealing cover 1 is driven to the grease discharging port 11 at the lower part of the outer sealing cover by the grease scraping sheet on the outer diameter of the grease throwing disc, so that the grease is forced to enter the inlet of the automatic grease discharging cleaning device. The rotating shaft of the automatic waste grease cleaning device is driven by a stepping motor, and the speed reducer 10 is used for reducing the speed. The spiral propelling shaft 5 is provided with a plurality of spiral propelling blades, and the waste grease entering the device is driven to a grease outlet 7 at the end part of the spiral propelling shaft under the action of the spiral propelling blades. A waste grease collector 8 is placed at the lower part of the grease outlet 7, and the discharged grease falls into the collector 8 under the action of driving force and gravity. When the collector 8 is full, the maintenance personnel pours the waste grease in the collector 8, and puts the collector 8 well again for continuous use. The utility model discloses can furthest reduce generator maintainer's working strength, need not like in the past need regularly unpack the bearing apart and carry out the maintenance to the bearing, prolonged the time interval of bearing regular maintenance. If the electric control system is matched, the remote control of automatic waste grease collection can be conveniently realized, the automatic collection and cleaning work of the waste grease of the bearing of the generator can be realized, and the bearing of the generator is safer to use.
Claims (3)
1. The utility model provides a waste fat automatic collection device for generator bearing end cover, characterized by: comprises a bearing outer sealing cover, a grease throwing disc, a motor, a speed reducer, a grease discharger, a spiral propelling shaft and a collector; the output shaft of the motor is connected with the spiral propelling shaft through a speed reducer; the grease discharging device is provided with a circular inner tube, and a grease inlet and a grease outlet which are communicated with a central hole of the circular inner tube are formed in the grease discharging device; the spiral propelling shaft is arranged in the circular inner pipe of the grease discharging device and is coaxial with the circular inner pipe; the grease discharging device is connected with the bearing outer sealing cover, and a grease inlet of the grease discharging device is connected with a grease discharging port of the bearing outer sealing cover; the grease outlet is arranged at the rear end of the grease discharger and is connected with the collector; and the grease throwing disc is arranged on a rotating shaft of the generator in the bearing outer sealing cover.
2. The automatic waste grease collecting device for the bearing end cover of the generator as claimed in claim 1, which is characterized in that: and the outer diameter surface of the grease throwing disc is provided with a grease scraping sheet.
3. The automatic waste grease collecting device for the bearing end cover of the generator as claimed in claim 2, which is characterized in that: the number of the grease scraping sheets is 2-4, and the grease scraping sheets are uniformly arranged on the outer diameter surface of the grease throwing disk along the circumferential direction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922070716.XU CN211010740U (en) | 2019-11-27 | 2019-11-27 | Automatic waste grease collecting device for bearing end cover of generator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922070716.XU CN211010740U (en) | 2019-11-27 | 2019-11-27 | Automatic waste grease collecting device for bearing end cover of generator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211010740U true CN211010740U (en) | 2020-07-14 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922070716.XU Active CN211010740U (en) | 2019-11-27 | 2019-11-27 | Automatic waste grease collecting device for bearing end cover of generator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211010740U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113970057A (en) * | 2020-07-24 | 2022-01-25 | 北京金风科创风电设备有限公司 | Grease discharging device, bearing assembly and wind generating set |
-
2019
- 2019-11-27 CN CN201922070716.XU patent/CN211010740U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113970057A (en) * | 2020-07-24 | 2022-01-25 | 北京金风科创风电设备有限公司 | Grease discharging device, bearing assembly and wind generating set |
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| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 411101 No.9, Chayuan Road, high tech Zone, Xiangtan City, Hunan Province Patentee after: Hunan Chongde Technology Co., Ltd Address before: 411101 No.9, Chayuan Road, high tech Zone, Xiangtan City, Hunan Province Patentee before: HUNAN SUND INDUSTRIAL AND TECHNOLOGICAL Co.,Ltd. |
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| CP01 | Change in the name or title of a patent holder |