CN102315716A - Adjustable electromotor shaft seal structure - Google Patents
Adjustable electromotor shaft seal structure Download PDFInfo
- Publication number
- CN102315716A CN102315716A CN2010102116803A CN201010211680A CN102315716A CN 102315716 A CN102315716 A CN 102315716A CN 2010102116803 A CN2010102116803 A CN 2010102116803A CN 201010211680 A CN201010211680 A CN 201010211680A CN 102315716 A CN102315716 A CN 102315716A
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- Prior art keywords
- oil sealing
- sealing cap
- bearing
- shaft seal
- adjustable
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Abstract
The invention discloses an adjustable electromotor shaft seal structure, which comprises a radial shaft seal at the left side of a bearing and a radial shaft seal at the right side of the bearing; the radial shaft seal at the left side of the bearing is of an adjustable shaft seal structure and comprises an external oil sealing cap, an adjustable annular plate and an adjusting screw, wherein the external oil sealing cap is in clearance fit with an output shaft; the adjustable annular plate is arranged between the external oil sealing cap and the bearing, and the axial thickness of the adjustable annular plate is smaller than the axial distance between the external oil sealing cap and the bearing; and a felt ring is embedded in a radial concave annular groove of the external oil sealing cap, which is opposite to an inner hole of the adjustable annular plate, and the axial thickness size of the felt ring under a free state is more than the axial distance between the external oil sealing cap and the radial concave annular groove, which is opposite to the inner hole of the adjustable angular plate. According to the invention, the matching between the felt ring and the output shaft is adjusted to reach a better sealing fit state, and the sealing property can be ensured for a long time.
Description
Technical field
The present invention relates to a kind of shaft seal structure, particularly a kind of shaft seal structure of motor output shaft end.
Background technology
The axle envelope of motor output shaft end is the important component that the protection bearing moves under lubricating condition.The axle envelope of commercially available motor is a kind of radial shaft seal structure, and this shaft seal structure is sealed and matched with static oil sealing cap endoporus middle concave annular groove setting-in felt circle and motor output shaft and forms.The radial shaft seal of prior art is simple in structure, can play effectively the restriction lubricant grease excessive with stop that extraneous dust gets into the effect of bearing.But; The sealing property of radial shaft seal depends on felt circle and motor output shaft mated condition; In case its sealing property of felt circle wearing and tearing just descends, supply the grease of bearing lubrication to be prone to from the gap, leak in the back that is heated, the loss of lubricant grease will worsen the service conditions of bearing; The wearing and tearing of aggravation bearing, the useful life of reducing motor.
Summary of the invention
The present invention is directed to the deficiency of prior art, provide a kind of simple in structure, easy to manufacture, can guarantee the adjustable electric arbor seal structure of sealing property for a long time.
The present invention realizes technical goal through following technical proposals.
Adjustable electric arbor seal structure, it comprises the radial shaft seal in bearing left side and the radial shaft seal on right side; The radial shaft seal on said bearing right side is by constituting with the interior oil sealing cap of motor output shaft matched in clearance, the interior oil sealing cap internal orifice dimension felt circle of setting-in in the spill annular groove; The radial shaft seal in bearing left side is by constituting with the outer oil sealing cap of motor output shaft matched in clearance, the outer oil sealing cap internal orifice dimension felt circle of setting-in in the spill annular groove; Its improvements are: the radial shaft seal in said bearing left side is adjustable shaft seal structure, and it comprises adjustable ring flat-plate, the adjustment screw that cooperates with output shaft clearance; Said adjustable ring flat-plate is arranged between outer oil sealing cap and the bearing, and its axial width is less than axial distance between outer oil sealing cap and the bearing; Said felt circle is inlaid in the outer oil sealing cap radially spill annular groove relative with adjustable ring flat-plate endoporus, and the axial width size under the felt circle free state is greater than the axial distance between the outer oil sealing cap radially spill annular groove relative with adjustable ring flat-plate endoporus; Between said outer oil sealing cap and the adjustable ring flat-plate elastic washer is set.
In the said structure, clockwise rotate the adjustment screw, adjustable ring flat-plate axially is moved to the left, and tightens up cooperating of felt circle and output shaft.
The present invention compared with prior art has following good effect:
1. simple in structure, easy to manufacture, easy to adjust;
2. adopt adjustable shaft seal structure, can felt circle and cooperating of output shaft be adjusted to the better seal mated condition at any time, can guarantee sealing property for a long time.
Description of drawings
Fig. 1 is a structural representation of the present invention.
Embodiment
Below according to accompanying drawing and combine embodiment that the present invention is described further.
Adjustable electric arbor seal structure shown in the drawings, it comprises the radial shaft seal in bearing 7 left sides and the radial shaft seal on right side; The radial shaft seal on said bearing 7 right sides is by constituting with the interior oil sealing cap 9 of motor output shaft 4 matched in clearance, the interior oil sealing cap 9 internal orifice dimensions felt circle 10 of setting-in in the spill annular groove; The radial shaft seal in said bearing 7 left sides is adjustable shaft seal structure; It comprises outer oil sealing cap 1, adjustable ring flat-plate 3, adjustment screw 6 with output shaft 4 matched in clearance; Outer oil sealing cap 1 is located by connecting with End cover for motor 8; Adjustable ring flat-plate 3 is arranged between outer oil sealing cap 1 and the bearing 7, and its axial width is less than axial distance between outer oil sealing cap 1 and the bearing 7; Said felt circle 5 is inlaid in the outer oil sealing cap 1 radially spill annular groove relative with adjustable ring flat-plate 3 endoporus, and the axial width size under felt circle 5 free states is greater than outer oil sealing cap 1 radially axial distance spill annular groove between relative with adjustable ring flat-plate 3 endoporus; Between said outer oil sealing cap 1 and the adjustable ring flat-plate 3 elastic washer 2 is set.
The radial shaft seal in middle (center) bearing of the present invention 7 left sides and the radial shaft seal on right side all play sealing function.For the radial shaft seal on bearing 7 right sides, the felt circle 10 of interior oil sealing cap 9 internal orifice dimensions setting-in in the spill annular groove cooperates formation radial seal structure performance sealing function with motor output shaft 4; Adjustable shaft seal structure for bearing 7 left sides; When 5 wearing and tearing of felt circle; When felt circle 5 is loose with cooperating of output shaft 4, regulate adjustment screw 6, outer oil sealing cap 1 radially axial distance spill annular groove between relative with adjustable ring flat-plate 3 endoporus dwindled; Tighten up cooperating of felt circle 5 and output shaft 4, can guarantee sealing property.
Claims (1)
1. adjustable electric arbor seal structure, it comprises the radial shaft seal in bearing (7) left side and the radial shaft seal on right side; The radial shaft seal on said bearing (7) right side is by constituting with the interior oil sealing cap (9) of motor output shaft (4) matched in clearance, the felt circle (10) of interior oil sealing cap (9) internal orifice dimension setting-in in the spill annular groove; The radial shaft seal in bearing (7) left side is by constituting with the outer oil sealing cap (1) of motor output shaft (4) matched in clearance, the felt circle (5) of outer oil sealing cap (1) internal orifice dimension setting-in in the spill annular groove; It is characterized in that: the radial shaft seal in said bearing (7) left side is adjustable shaft seal structure, and it comprises adjustable ring flat-plate (3), adjustment screw (6) with output shaft (4) matched in clearance; Said adjustable ring flat-plate (3) is arranged between outer oil sealing cap (1) and the bearing (7), and its axial width is less than axial distance between outer oil sealing cap (1) and the bearing (7); Said felt circle (5) is inlaid in outer oil sealing cap (1) the radially spill annular groove relative with adjustable ring flat-plate (3) endoporus, and the axial width size under felt circle (5) free state is greater than the axial distance between outer oil sealing cap (1) the radially spill annular groove relative with adjustable ring flat-plate (3) endoporus; Between said outer oil sealing cap (1) and the adjustable ring flat-plate (3) elastic washer (2) is set.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010102116803A CN102315716A (en) | 2010-06-29 | 2010-06-29 | Adjustable electromotor shaft seal structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010102116803A CN102315716A (en) | 2010-06-29 | 2010-06-29 | Adjustable electromotor shaft seal structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102315716A true CN102315716A (en) | 2012-01-11 |
Family
ID=45428604
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010102116803A Pending CN102315716A (en) | 2010-06-29 | 2010-06-29 | Adjustable electromotor shaft seal structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102315716A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107947432A (en) * | 2017-12-14 | 2018-04-20 | 江苏世隆电机有限公司 | Ultra high efficiency permasyn morot adjustable shaft seal structure |
| CN113565882A (en) * | 2021-07-30 | 2021-10-29 | 北京曙光航空电气有限责任公司 | Front end cover sealing structure for preventing oil leakage of high-speed generator |
-
2010
- 2010-06-29 CN CN2010102116803A patent/CN102315716A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107947432A (en) * | 2017-12-14 | 2018-04-20 | 江苏世隆电机有限公司 | Ultra high efficiency permasyn morot adjustable shaft seal structure |
| CN113565882A (en) * | 2021-07-30 | 2021-10-29 | 北京曙光航空电气有限责任公司 | Front end cover sealing structure for preventing oil leakage of high-speed generator |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20120111 |