CN205304461U - Novel axle link up seal structure - Google Patents
Novel axle link up seal structure Download PDFInfo
- Publication number
- CN205304461U CN205304461U CN201521038572.5U CN201521038572U CN205304461U CN 205304461 U CN205304461 U CN 205304461U CN 201521038572 U CN201521038572 U CN 201521038572U CN 205304461 U CN205304461 U CN 205304461U
- Authority
- CN
- China
- Prior art keywords
- bearing
- axle
- interference fit
- axial plane
- plane oil
- Prior art date
- 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 - Fee Related
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- Sealing Of Bearings (AREA)
Abstract
The utility model discloses a novel axle link up seal structure, including axle, bearing, bearing enclosing cover, bearing inner cup and end cover, its characterized in that: adopt interference fit between axle and the bearing, the bearing enclosing cover set up in the bearing outside, the bearing enclosing cover pass through the sealing ring with spool between interference fit, the bearing inner cup set up in the bearing inboardly, the bearing inner cup is through an annular boss and an axle interference fit, the low -voltage line phase sequence signboard is advantageous in that, the utility model discloses set up the sealing ring in the position that bearing enclosing cover and coupling touched, the sealing ring can reduce the motor and let out leakage quantity, and the explosion -proof of reinforcing motor can, secondarily, the bearing in cover and be provided with annular boss, annular boss still is provided with the axial plane oil blanket with the position of motor contact, the annular metallic shell and the axle interference fit of axial plane oil blanket can guarantee the gas tightness between axial plane oil blanket and the axle, and then guarantee the bearing inner cup and spool between the gas tightness, further reduce the leakage quantity that lets out of motor, strengthened the explosion -proof ability of motor.
Description
Technical field
This utility model relates to motor technology field, particularly relates to a kind of through sealing structure of Novel shaft.
Background technology
Leakage rate size is one of main explosion-proof performance of motor, leakage rate is big, motor arises that the situation that cannot start or protect the incessantly pressure of casing internal, to directly threaten the explosion-proof performance of motor, it is also possible under serious conditions make motor lose explosion-proof performance, thus causing that motor exists the danger blasted when starting and run; At present, domestic electric machine common problem is: high-speed electric expreess locomotive many employings case structure, parts junction is many, due to encapsulant, the restriction of manufacturing process and moulds of industrial equipment etc., often only take one or two place's seal approach, as it is shown in figure 1, there is gap between the axle sealing structure motor enclosing cover 1A and axle 1B of existing motor, poorly sealed, causing that existing motor leakage rate is relatively larger, explosion-proof performance is not strong.
Utility model content
The purpose of this utility model is to provide a kind of through sealing structure of Novel shaft, solves existing motor in the big problem of axle through portion leakage rate, enhances the explosion-proof performance of motor.
This utility model is by the following technical solutions:
A kind of through sealing structure of Novel shaft, including axle, bearing, bearing end cover, internal bearing cover and end cap, interference fit is adopted between axle and bearing, described bearing end cover is arranged at outside bearing, bearing end cover is away from offering cannelure that is concentric with axis hole and that connect on the face of bearing, the sealing ring matched with cannelure it is provided with, interference fit between sealing ring and axle in described cannelure; Described internal bearing cover is arranged at inside bearing, and between internal bearing cover with end cap, adopt seam to coordinate, the annular boss extended to motor internal it is provided with in the middle part of internal bearing cover, the inwall of annular boss is provided with axial plane oil seal groove, the axial plane oil sealing matched with axial plane oil seal groove, interference fit between axial plane oil sealing and axle it is provided with in axial plane oil seal groove.
Described sealing ring adopts carbon graphite sealing ring.
Described axial plane oil sealing includes endless metal shell and rubber ring, on described endless metal shell, hoop offers groove, location bar it is provided with in groove, rubber ring is provided with hole, location, wherein, rubber ring and groove interference fit, hole, location and location bar interference fit, axial plane oil sealing is by endless metal shell and axle interference fit.
The outside of described bearing end cover is additionally provided with reinforcement baffle plate, the upper end strengthening baffle plate is fixed be connected by being fastened bolt and bearing end cover, strengthen the face that baffle plate coordinates with axle offers seal groove, it is provided with the O-shaped rubber ring matched with seal groove in seal groove, strengthens baffle plate by O-shaped rubber ring and axle interference fit.
The beneficial effects of the utility model:
First, the position that this utility model contacts with axle at bearing end cover is provided with sealing ring, on the one hand, sealing ring is possible to prevent the impurity such as moisture and dust enter bearing and then damage bearing; On the other hand, sealing ring can also reduce motor leakage rate, strengthens the explosion-proof performance of motor; Secondly, internal bearing cover described in the utility model is provided with annular boss, annular boss stretches into motor, the position that annular boss contacts with motor is additionally provided with axial plane oil sealing, the endless metal shell of axial plane oil sealing and axle interference fit, it is possible to ensure the air-tightness between axial plane oil sealing and axle, and then ensure the air-tightness between internal bearing cover and axle, reduce the leakage rate of motor further, enhance the explosion-proof performance of motor; Again, the axial plane oil sealing that this utility model adopts is novel axial plane oil sealing, and the rubber ring constituting axial plane oil sealing can pass through groove, location bar and hole, location and endless metal circle interference fit, enhances the reliability of axial plane oil sealing; Finally, reinforcement baffle plate also it is fixedly connected with outside bearing end cover described in the utility model, contact surface between reinforcement baffle plate and axle is strengthened by O-shaped rubber ring airtight, further increase the air-tightness between axle and bearing end cover, enhance the explosion-proof performance of motor.
Accompanying drawing explanation
Fig. 1 is the structural representation of the through hermetic unit of existing motor shaft;
Fig. 2 is the schematic diagram of the through sealing structure of axle described in the utility model;
Fig. 3 is the structural representation of the endless metal shell of axial plane oil sealing described in the utility model;
Fig. 4 is the structural representation of the rubber ring of axial plane oil sealing described in the utility model.
Detailed description of the invention
As depicted in figs. 1 and 2, a kind of through sealing structure of Novel shaft described in the utility model, including axle 1, bearing 5, bearing end cover 3, internal bearing cover 4 and end cap 2;
Interference fit is adopted between axle 1 and bearing 5, described bearing end cover 3 is arranged at outside bearing 5, the lateral surface of bearing end cover 3 offers cannelure that is concentric with axis hole and that connect, the sealing ring 7 matched with cannelure it is provided with in cannelure, interference fit between sealing ring 7 and bearing 5, it is preferable that the sealing ring 7 that scheme is described adopts the advantage that carbon graphite sealing ring, carbon graphite sealing ring have high intensity, resistance to oxidation, corrosion-resistant and rub resistance, reliability is high, durable in use; Meanwhile, between sealing ring 7 and axle 1, interference fit also is able between guarantee sealing ring 7 and axle 1 water-tight, air tight;
Described internal bearing cover 4 is arranged at inside bearing 5, and between internal bearing cover 4 with end cap 2, adopt seam to coordinate, the annular boss extended to motor internal it is additionally provided with in the middle part of internal bearing cover 4, the inwall of annular boss is provided with axial plane oil seal groove, the axial plane oil sealing 8 matched with axial plane oil seal groove, interference fit between axial plane oil sealing 8 and axle it is provided with in axial plane oil seal groove;Described axial plane oil sealing 8 includes endless metal shell 11 and rubber ring 13, described endless metal shell 11 circumferentially offers groove, location bar 12 it is provided with in groove, rubber ring 13 is provided with hole 14, location, wherein, rubber ring 13 and groove interference fit, hole, location 14 and location bar 12 interference fit, axial plane oil sealing 8 is by endless metal shell 11 and axle 1 interference fit, it is ensured that good seal between internal bearing cover 4 and axle 1;
The outside of described bearing end cover 3 is additionally provided with reinforcement baffle plate 6, the upper end strengthening baffle plate 6 is connected by fastening bolt 10 is fixing with bearing end cover 3, strengthen the face that baffle plate 6 coordinates with axle offers seal groove, the O-shaped rubber ring 9 matched with seal groove it is provided with in seal groove, strengthening baffle plate 6 by O-shaped rubber ring 9 and axle interference fit, described O-shaped rubber ring 9 adopts silicon rubber loop or fluorine rubber ring.
First, this utility model is provided with sealing ring 7 in the position that bearing end cover 3 contacts with axle, on the one hand, sealing ring 7 is possible to prevent the impurity such as moisture and dust enter bearing 5 and then damage bearing 5; On the other hand, sealing ring 7 can also reduce motor leakage rate, strengthens the explosion-proof performance of motor; Secondly, internal bearing cover 4 described in the utility model is provided with annular boss, annular boss stretches into motor, the position that annular boss contacts with axle 1 is additionally provided with axial plane oil sealing 8, endless metal shell 11 and axle 1 interference fit of axial plane oil sealing 8, it is possible to ensure the air-tightness between axial plane oil sealing 8 and axle, and then ensure the air-tightness between internal bearing cover 4 and axle, reduce the leakage rate of motor further, enhance the explosion-proof performance of motor; Again, the axial plane oil sealing 8 that this utility model adopts is novel axial plane oil sealing 8, and the rubber ring 13 constituting axial plane oil sealing 8 can pass through groove, location bar 12 and hole, location 14 and endless metal circle interference fit, enhances the reliability of axial plane oil sealing 8; Finally, reinforcement baffle plate 6 also it is fixedly connected with outside bearing end cover 3 described in the utility model, strengthen the contact surface between baffle plate 6 and axle is strengthened airtight by O-shaped rubber ring 9, further increase the air-tightness between axle and bearing end cover 3, enhance the explosion-proof performance of motor.
Claims (4)
1. the through sealing structure of Novel shaft, it is characterized in that: include axle, bearing, bearing end cover, internal bearing cover and end cap, it is characterized in that: between axle and bearing, adopt interference fit, described bearing end cover is arranged at outside bearing, bearing end cover is away from offering cannelure that is concentric with axis hole and that connect on the face of bearing, the sealing ring matched with cannelure it is provided with, interference fit between sealing ring and axle in described cannelure; Described internal bearing cover is arranged at inside bearing, and between internal bearing cover with end cap, adopt seam to coordinate, the annular boss extended to motor internal it is provided with in the middle part of internal bearing cover, the inwall of annular boss is provided with axial plane oil seal groove, the axial plane oil sealing matched with axial plane oil seal groove, interference fit between axial plane oil sealing and axle it is provided with in axial plane oil seal groove.
2. a kind of through sealing structure of Novel shaft according to claim 1, it is characterised in that: described sealing ring adopts carbon graphite sealing ring.
3. a kind of through sealing structure of Novel shaft according to claim 1, it is characterized in that: described axial plane oil sealing includes endless metal shell and rubber ring, on described endless metal shell, hoop offers groove, location bar it is provided with in groove, rubber ring is provided with hole, location, wherein, rubber ring and groove interference fit, hole, location and location bar interference fit, axial plane oil sealing is by endless metal shell and axle interference fit.
4. a kind of through sealing structure of Novel shaft according to claim 1, it is characterized in that: the outside of described bearing end cover is additionally provided with reinforcement baffle plate, the upper end strengthening baffle plate is fixed be connected by being fastened bolt and bearing end cover, strengthen the face that baffle plate coordinates with axle offers seal groove, it is provided with the O-shaped rubber ring matched with seal groove in seal groove, strengthens baffle plate by O-shaped rubber ring and axle interference fit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521038572.5U CN205304461U (en) | 2015-12-15 | 2015-12-15 | Novel axle link up seal structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521038572.5U CN205304461U (en) | 2015-12-15 | 2015-12-15 | Novel axle link up seal structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205304461U true CN205304461U (en) | 2016-06-08 |
Family
ID=56430827
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201521038572.5U Expired - Fee Related CN205304461U (en) | 2015-12-15 | 2015-12-15 | Novel axle link up seal structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205304461U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107404175A (en) * | 2017-08-31 | 2017-11-28 | 易助电机（苏州）有限公司 | A kind of direct current generator output shaft end waterproof construction |
-
2015
- 2015-12-15 CN CN201521038572.5U patent/CN205304461U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107404175A (en) * | 2017-08-31 | 2017-11-28 | 易助电机（苏州）有限公司 | A kind of direct current generator output shaft end waterproof construction |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160608 Termination date: 20181215 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |