CN203362522U - Oil seal protection device for brushless generator with pump - Google Patents
Oil seal protection device for brushless generator with pump Download PDFInfo
- Publication number
- CN203362522U CN203362522U CN 201320445341 CN201320445341U CN203362522U CN 203362522 U CN203362522 U CN 203362522U CN 201320445341 CN201320445341 CN 201320445341 CN 201320445341 U CN201320445341 U CN 201320445341U CN 203362522 U CN203362522 U CN 203362522U
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- oil sealing
- retainer
- pump
- generator
- rotating shaft
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Abstract
The utility model discloses an oil seal protection device for a brushless generator with a pump. The brushless generator comprises a generator, wherein a vacuum pump is fixedly connected to a rear end cover of the generator and comprises a pump casing and a pump bottom fixedly connected with the rear end cover; a rotating shaft of the generator, in the rear end cover, is sleeved with a rear bearing; the outer ring of the rear bearing is fixedly mounted in the rear end cover; a rotating shaft hole is formed in the middle of the pump bottom; part of the rotating shaft in the rotating shaft hole is sleeved with an oil seal; the rotating shaft of the generator extends into the vacuum pump through the rotating shaft hole; the rotating shaft between the rear bearing and the oil seal is sleeved with an oil seal stop pad used for preventing the oil seal from dropping out; the oil seal stop pad and the rotating shaft are in clearance fit with each other; the oil seal stop pad comprises a ring-shaped stop part propped against the outer end surface of the oil seal, the outer edge end part of the stop part extends towards the rear bearing to form an extending part, and the end of the extending part, far away from the stop part, is propped against the end surface of the outer ring of the rear bearing. The oil seal protection device for the brushless generator with the pump can prevent the oil seal from dropping out of the pump bottom.
Description
Technical field
The utility model relates to technical field of generators, specifically, relates to a kind of brushless generator with pump oil sealing protective gear.
Background technique
The brushless generator with pump that generator and vacuum pump are installed together, both reduced volume, saved again installation cost.Brushless generator with pump is very extensive at automobile lighting and the application of skidding field at present.
Existing brushless generator with pump comprises generator, be fixedly connected with vacuum pump on the rear end cover of generator, at the bottom of vacuum pump comprises pump case and the close pump of rear end cover, rear bearing is sheathed in the rotating shaft of the generator that is positioned at rear end cover, the rotating shaft of generator extends in vacuum pump, at the bottom of pump, the rotating shaft of inside partly is arranged with oil sealing, and coaxially installs with rear bearing.In order to prevent that bearing is in rotation process, the exterior edge face of friction oil sealing causes oil sealing to damage, and between the exterior edge face of oil sealing and the exterior edge face of rear bearing, can leave certain distance, is generally 6 to 8mm, form space, thereby prevented the rear bearing oil sealing that rubs in rotation process.But the brushless generator with pump of this structure in use, alternator shaft rotates, drive the pump core blade rotary in vacuum pump, when vacuumizing to vacuum chamber, pressure in vacuum pump increases, and causes oil sealing easily to be deviate from from space laterally at the bottom of pump, causes leakage of oil, vacuum pump vacuum action to lose efficacy, and cause braking automobile malfunctioning, reduced the reliability of automobile current generator.
In order to address the above problem, existing some brushless generator with pump arranges spring between oil sealing and rear bearing.But spring is set and need to spring groove be set on the madial wall at the bottom of pump in order to block spring, adopt the brushless generator with pump of this structure, at the bottom of oil sealing is fit into to pump in the process of inside, the seamed edge of spring groove is easily by the scratch of oil sealing outer side wall, and causes the oil sealing leakage of oil.
The model utility content
Technical problem to be solved in the utility model is: provide a kind of and can prevent that oil sealing from deviating from the brushless generator with pump oil sealing protective gear of inside at the bottom of pump.
For solving the problems of the technologies described above, the technical solution of the utility model is:
A kind of brushless generator with pump oil sealing protective gear, comprise generator, be fixedly connected with vacuum pump on the rear end cover of described generator, at the bottom of described vacuum pump comprises pump case and the pump be fixedly connected with described rear end cover, be arranged with rear bearing in the rotating shaft of the generator in described rear end cover, the outer ring of described rear bearing is fixedly installed in described rear end cover, at the bottom of described pump, middle part is provided with rotary shaft hole, rotating shaft in described rotary shaft hole partly is arranged with oil sealing, the rotating shaft of described generator extends in vacuum pump through described rotary shaft hole, be arranged with the oil sealing stop pad for stoping described oil sealing to be deviate from rotating shaft between described rear bearing and described oil sealing, between described oil sealing stop pad and described rotating shaft, it is Spielpassung,
Described oil sealing stop pad comprises the ring-type retainer that relies on described oil sealing exterior edge face, the outward edge end of described retainer extends to form extension part to described rear bearing direction, and described extension part relies on the cycle surface of described rear bearing away from an end of described retainer.
Preferably, described extension part arranges with described retainer is vertical.
Preferably, described retainer comprises the first retainer of ring-type and the kink extended to form to described rear bearing direction by the outward edge of described the first retainer, and described kink forms the second retainer away from an end outward of described the first retainer; Described the first retainer relies on the exterior edge face of described oil sealing, and described the second retainer relies on the exterior edge face at the bottom of described pump; Described extension part extends and arranges to described rear bearing direction along the outward edge of described the second retainer, and described extension part relies on the cycle surface of described rear bearing away from an end of described the second retainer; The external diameter of described the first retainer and the external diameter of described oil sealing are suitable or be less than the external diameter of described oil sealing.
Preferably, described the first retainer arranges with described kink is vertical, described kink and vertical setting of described the second retainer, and described the second retainer arranges with described extension part is vertical.
Preferably, the oil sealing stop pad that described oil sealing stop pad is metal material.
After having adopted technique scheme, the beneficial effects of the utility model are:
Brushless generator with pump oil sealing protective gear of the present utility model is arranged with the oil sealing stop pad for stoping described oil sealing to be deviate from the rotating shaft between described rear bearing and described oil sealing, between described oil sealing stop pad and described rotating shaft, is Spielpassung; Described oil sealing stop pad comprises the ring-type retainer that relies on described oil sealing exterior edge face, the outward edge end of described retainer extends to form extension part to described rear bearing direction, and described extension part relies on the cycle surface of described rear bearing away from an end of described retainer.Because the outer ring of rear bearing closely is fixedly mounted in generator, therefore the outer ring of rear bearing is fixed, remain static, in addition, between oil sealing stop pad and rotating shaft, be Spielpassung, therefore, when rotating shaft is rotated together with the rear bearing inner ring, the rear bearing inner ring of rotation can not cause that the oil sealing stop pad rotates, the oil sealing stop pad is static, has eliminated the friction hidden danger of itself and rotating shaft and oil sealing.And the exterior edge face that its ring-type retainer withstands oil sealing, the outer ring of rear bearing is to the support force of oil sealing stop pad extension part, pass to oil sealing with balanced support force by the ring-type retainer, can prevent that oil sealing from deviating from, solve the excessive problem that causes oil sealing to deviate from leakage of oil of vacuum pump when work internal pressure, improved the reliability of brushless generator with pump, and static oil sealing stop pad can not bring friction to oil sealing, avoid the friction damage oil sealing, thereby extended its working life.
When the oil sealing stop pad adopts following structure, that is: described retainer comprises the first retainer of ring-type, the kink extended to form to described rear bearing direction by the outward edge of described the first retainer, and described kink forms the second retainer away from an end outward of described the first retainer; Described the first retainer relies on the exterior edge face of described oil sealing, and described the second retainer relies on the exterior edge face at the bottom of described pump; Described extension part extends and arranges to described rear bearing direction along the outward edge of described the second retainer, and described extension part relies on the cycle surface of described rear bearing away from an end of described the second retainer; The external diameter of described the first retainer and the external diameter of described oil sealing are suitable or be less than the external diameter of described oil sealing.Because the outer ring of rear bearing snugly fits in generator, therefore outer ring is fixed, remain static, in addition, between oil sealing stop pad and rotating shaft, be Spielpassung, therefore, when rotating shaft is rotated together with the rear bearing inner ring, the rear bearing inner ring of rotation can not cause that the oil sealing stop pad rotates, the oil sealing stop pad is static, has eliminated the friction hidden danger of itself and rotating shaft and oil sealing.And the exterior edge face that the first retainer of its ring-type withstands oil sealing, the second retainer of ring-type relies on the exterior edge face at the bottom of pump, the outer ring of rear bearing is to the support force of oil sealing stop pad extension part, pass to oil sealing with balanced support force by the second retainer and the first retainer, can prevent that oil sealing from deviating from, the excessive problem that causes oil sealing to deviate from leakage of oil of internal pressure while having solved vacuum pump work, improved the reliability of brushless generator with pump, and static oil sealing stop pad can not bring friction to oil sealing, avoided the friction damage oil sealing, thereby extended its working life.
The accompanying drawing explanation
Below in conjunction with drawings and Examples, the utility model is described in further detail:
Fig. 1 is the structural representation of embodiment's one of the present utility model brushless generator with pump oil sealing protective gear;
Fig. 2 is the generalized section of the oil sealing stop pad in Fig. 1;
Fig. 3 is the structural representation of embodiment's two of the present utility model brushless generator with pump oil sealing protective gear;
Fig. 4 is the generalized section of the oil sealing stop pad in Fig. 3;
In figure: 1, vacuum pump; 11, at the bottom of pump; 12, pump case; 2, rear end cover; 3, rear bearing; 4, rotating shaft; 5, oil sealing; 6, oil sealing stop pad; 61, retainer; 62, extension part; 63, rotating shaft is through hole; 64, the first retainer; 65, kink; 66, the second retainer.
Embodiment
Specifically set forth the utility model below in conjunction with the drawings and specific embodiments.
Embodiment one
Fig. 1 is the structural representation of embodiment's one of the present utility model brushless generator with pump oil sealing protective gear, Fig. 2 is the generalized section of the oil sealing stop pad in Fig. 1, see figures.1.and.2, the brushless generator with pump oil sealing protective gear of the present embodiment, comprise generator, be fixedly connected with vacuum pump 1 on the rear end cover 2 of generator, vacuum pump 1 comprises at the bottom of pump case 12 and the pump be fixedly connected with rear end cover 2 11, be arranged with rear bearing 3 in the rotating shaft 4 of the generator in rear end cover 2, the outer ring of rear bearing 3 is fixedly installed in rear end cover 2, at the bottom of pump, 11 middle parts are provided with rotary shaft hole, rotating shaft 4 parts in rotary shaft hole are arranged with oil sealing 5, oil sealing 5 is coaxially installed with rear bearing 3, the rotating shaft 4 of generator extends in vacuum pump 1, when rotating shaft 4 is rotated, drive the pump core blade rotation in vacuum pump 1, make vacuum pump 1 carry out work.Being arranged with the oil sealing stop pad 6 for stoping oil sealing 5 to be deviate from rotating shaft 4 between rear bearing 3 and oil sealing 5, is Spielpassung between oil sealing stop pad 6 and rotating shaft 4.Certainly, also can adopt transition fit between oil sealing stop pad 6 and rotating shaft 4.
Oil sealing stop pad 6 comprises the retainer 61 of the ring-type of the exterior edge face that relies on oil sealing 5, the middle part of retainer 61 is provided with rotating shaft through hole 63, the outward edge of retainer 61 extends to form the extension part 62 of ring-type to rear bearing 3 directions, extension part 62 relies on the cycle surface of rear bearing 3 away from an end of retainer 61.Certainly, extension part 62 also can be the strip at interval, and the extension part 62 of strip relies on the cycle surface of rear bearing 3 away from the end of retainer 61.
In the present embodiment, vacuum pump 1 is the oil sealing vacuum pump, and the sealing that the oil sealed with oil sealing 5 keeps vacuum pump 1 interior moving element changes and realizes that the oil-sealed rotary pump of bleeding claims the oil sealing vacuum pump by pump chamber.The working principle of oil sealing vacuum pump is the pump chamber swept volume of a single chamber is mechanically increased and dwindle and bleed.In pump chamber, swept volume of a single chamber becomes hour, with the pump intake piping road, be communicated with, so gas enters the pump suction chamber, until the suction chamber volume is maximum and while again separating with suction port till.When volume reducing, gas is compressed, until the pressure of gas is greater than a barometric pressure, outlet valve is opened, and gas is discharged.For a long time, on automobile, the extensive use vacuum pump is as the source of vacuum power in the automobile vacuum booster brake system, but the generator on automobile and vacuum pump were all to separate installation in the past, had not only increased space but also wasted installation cost, caused the waste that some are unnecessary.In the present embodiment, by vacuum pump and generator integrated setting, saved installing space.
The brushless generator with pump oil sealing protective gear of the present embodiment; because the outer ring of rear bearing 3 closely is fixed in generator; therefore the outer ring of rear bearing 3 is fixed; remaining static, in addition, is Spielpassung between oil sealing stop pad 6 and rotating shaft 4; therefore when rotating shaft 4 is rotated together with the rear bearing inner ring; the rear bearing inner ring rotated can not cause that oil sealing stop pad 6 rotates, and oil sealing stop pad 6 is static, has eliminated the friction hidden danger of itself and rotating shaft 4 and oil sealing 5.And the exterior edge face that the retainer 61 of ring-type withstands oil sealing 5, the outer ring of rear bearing 3 is to the support force of the extension part 62 of oil sealing stop pad 6, retainer 61 by ring-type passes to oil sealing 5 with balanced support force, can prevent that oil sealing 5 from deviating from, solved the excessive problem that causes oil sealing 5 to deviate from leakage of oil of vacuum pump 1 internal pressure, improved the reliability of brushless generator with pump, and static oil sealing stop pad 6 brings friction can to oil sealing 5, avoid friction damage oil sealing 5, thereby extended its working life.
Embodiment two
Fig. 3 is the structural representation of embodiment's two of the present utility model brushless generator with pump oil sealing protective gear, Fig. 4 is the generalized section of the oil sealing stop pad in Fig. 3, with reference to Fig. 3 and Fig. 4, the brushless generator with pump oil sealing protective gear of the present embodiment, the brushless generator with pump oil sealing protective gear of the present embodiment, comprise generator, be fixedly connected with vacuum pump 1 on the rear end cover 2 of generator, vacuum pump 1 comprises at the bottom of pump case 12 and the pump be fixedly connected with rear end cover 2 11, be arranged with rear bearing 3 in the rotating shaft 4 of the generator in rear end cover 2, the outer ring of rear bearing 3 is fixedly installed in rear end cover 2, at the bottom of pump, 11 middle parts are provided with rotary shaft hole, rotating shaft in rotary shaft hole partly is arranged with oil sealing 5, oil sealing 5 is coaxially installed with rear bearing 3, the rotating shaft 4 of generator extends in vacuum pump 1, when rotating shaft 4 is rotated, drive the pump core blade rotation in vacuum pump 1, make vacuum pump 1 carry out work.Being arranged with the oil sealing stop pad 6 for stoping oil sealing 5 to be deviate from rotating shaft 4 between rear bearing 3 and oil sealing 5, is Spielpassung between oil sealing stop pad and rotating shaft.
Oil sealing stop pad 6 comprises the retainer of the ring-type that relies on oil sealing 5 exterior edge faces, retainer comprises the first retainer 64 of ring-type and the kink 65 extended to form to the direction of rear bearing 3 by the outward edge of the first retainer 64, and kink 65 forms the second retainer 66 away from an end outward of the first retainer 64; The first retainer 64 relies on the exterior edge face of oil sealing 5, and the second retainer 66 relies at the bottom of pump 11 exterior edge face; The outward edge of the second retainer 66 extends to rear bearing 3 directions the extension part 62 that is provided with ring-type, and extension part 62 relies on the exterior edge face of rear bearing 3 away from an end of the second retainer 66; The external diameter of the external diameter of the first retainer 64 and oil sealing 5 is suitable or be less than the external diameter of oil sealing 5.Certainly, extension part 62 also can be the strip at interval, and the extension part 62 of strip relies on the cycle surface of rear bearing 3 away from the end of the second retainer 66.
The first retainer 64 is vertical with kink to be arranged, kink 65 and the vertical setting of the second retainer 66, the setting vertical with extension part 62 of the second retainer 66.
Oil sealing stop pad 6 adopts iron material to make, and certainly, also can adopt other that metallic material of enough hardness is arranged.
In the present embodiment, vacuum pump 1 is the oil sealing vacuum pump, and the sealing that the oil sealed with oil sealing 5 keeps vacuum pump 1 interior moving element changes and realizes that the oil-sealed rotary pump of bleeding claims the oil sealing vacuum pump by pump chamber.The working principle of oil sealing vacuum pump is the pump chamber swept volume of a single chamber is mechanically increased and dwindle and bleed.In pump chamber, swept volume of a single chamber becomes hour, with the pump intake piping road, be communicated with, so gas enters the pump suction chamber, until the suction chamber volume is maximum and while again separating with suction port till.When volume reducing, gas is compressed, until the pressure of gas is greater than a barometric pressure, outlet valve is opened, and gas is discharged.For a long time, on automobile, the extensive use vacuum pump is as the source of vacuum power in the automobile vacuum booster brake system, but the generator on automobile and vacuum pump were all to separate installation in the past, had not only increased space but also wasted installation cost, caused the waste that some are unnecessary.In the present embodiment, by vacuum pump and generator integrated setting, saved installing space.
The brushless generator with pump oil sealing protective gear of the present embodiment; because the outer ring of rear bearing 3 closely is fixed in generator; therefore outer ring is fixed; remaining static, in addition, is Spielpassung between oil sealing stop pad 6 and rotating shaft 4; therefore when rotating shaft 4 is rotated together with the rear bearing inner ring; the rear bearing inner ring rotated can not cause that oil sealing stop pad 6 rotates, and oil sealing stop pad 6 is static, has eliminated the friction hidden danger of itself and rotating shaft 4 and oil sealing 5.And the exterior edge face that the first retainer 64 of its ring-type withstands oil sealing 5, the second retainer 66 of ring-type withstands at the bottom of pump 11 exterior edge face, the outer ring of rear bearing 3 is to the support force of the extension part 62 of oil sealing stop pad 6, pass to oil sealing 5 with balanced support force by the second retainer 66 and the first retainer 64, can prevent that oil sealing 5 from deviating from, solved the excessive problem that causes oil sealing 5 to deviate from leakage of oil of vacuum pump 1 internal pressure, improved the reliability of brushless generator with pump, and static oil sealing stop pad 6 brings friction can to oil sealing 5, avoided friction damage oil sealing 5, thereby extended its working life.
The above is giving an example of the utility model preferred forms, and the part of wherein not addressing in detail is those of ordinary skills' common practise.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 (5)
1. brushless generator with pump oil sealing protective gear, comprise generator, be fixedly connected with vacuum pump on the rear end cover of described generator, at the bottom of described vacuum pump comprises pump case and the pump be fixedly connected with described rear end cover, be arranged with rear bearing in the rotating shaft of the generator in described rear end cover, the outer ring of described rear bearing is fixedly installed in described rear end cover, at the bottom of described pump, middle part is provided with rotary shaft hole, rotating shaft in described rotary shaft hole partly is arranged with oil sealing, the rotating shaft of described generator extends in vacuum pump through described rotary shaft hole, it is characterized in that: be arranged with the oil sealing stop pad for stoping described oil sealing to be deviate from the rotating shaft between described rear bearing and described oil sealing, between described oil sealing stop pad and described rotating shaft, it is Spielpassung,
Described oil sealing stop pad comprises the ring-type retainer that relies on described oil sealing exterior edge face, the outward edge end of described retainer extends to form extension part to described rear bearing direction, and described extension part relies on the cycle surface of described rear bearing away from an end of described retainer.
2. brushless generator with pump oil sealing protective gear as claimed in claim 1, it is characterized in that: described extension part arranges with described retainer is vertical.
3. brushless generator with pump oil sealing protective gear as claimed in claim 1, it is characterized in that: described retainer comprises the first retainer of ring-type and the kink extended to form to described rear bearing direction by the outward edge of described the first retainer, and described kink forms the second retainer away from an end outward of described the first retainer; Described the first retainer relies on the exterior edge face of described oil sealing, and described the second retainer relies on the exterior edge face at the bottom of described pump; Described extension part extends and arranges to described rear bearing direction along the outward edge of described the second retainer, and described extension part relies on the cycle surface of described rear bearing away from an end of described the second retainer; The external diameter of described the first retainer and the external diameter of described oil sealing are suitable or be less than the external diameter of described oil sealing.
4. brushless generator with pump oil sealing protective gear as claimed in claim 3; it is characterized in that: described the first retainer arranges with described kink is vertical; described kink and vertical setting of described the second retainer, described the second retainer arranges with described extension part is vertical.
5. as the described brushless generator with pump oil sealing of claim 1-4 any one protective gear, it is characterized in that: the oil sealing stop pad that described oil sealing stop pad is metal material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320445341 CN203362522U (en) | 2013-07-24 | 2013-07-24 | Oil seal protection device for brushless generator with pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320445341 CN203362522U (en) | 2013-07-24 | 2013-07-24 | Oil seal protection device for brushless generator with pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203362522U true CN203362522U (en) | 2013-12-25 |
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ID=49810298
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320445341 Expired - Fee Related CN203362522U (en) | 2013-07-24 | 2013-07-24 | Oil seal protection device for brushless generator with pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203362522U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106194649A (en) * | 2016-08-26 | 2016-12-07 | 宁波东电电力设备制造有限公司 | A kind of hydro-generating Unit pump case |
-
2013
- 2013-07-24 CN CN 201320445341 patent/CN203362522U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106194649A (en) * | 2016-08-26 | 2016-12-07 | 宁波东电电力设备制造有限公司 | A kind of hydro-generating Unit pump case |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: Oil seal protection device for brushless generator with pump Effective date of registration: 20141022 Granted publication date: 20131225 Pledgee: Societe Generale Bank, Limited by Share Ltd, Weifang branch Pledgor: Weifang Wanlong Electric Limited by Share Ltd. Registration number: 2014990000882 |
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| PLDC | Enforcement, change and cancellation of contracts on pledge of patent right or utility model | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20131225 Termination date: 20180724 |