CN201667573U - Motor shaft end surface sealing device - Google Patents
Motor shaft end surface sealing device Download PDFInfo
- Publication number
- CN201667573U CN201667573U CN2010201454367U CN201020145436U CN201667573U CN 201667573 U CN201667573 U CN 201667573U CN 2010201454367 U CN2010201454367 U CN 2010201454367U CN 201020145436 U CN201020145436 U CN 201020145436U CN 201667573 U CN201667573 U CN 201667573U
- Authority
- CN
- China
- Prior art keywords
- sealing ring
- metal
- endoporus
- inner hole
- end cap
- 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 - Lifetime
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Abstract
The utility model relates to a motor shaft end surface sealing device, which comprises a metal casing and a sealing ring. The metal casing is provided with a middle inner hole and a labyrinth ring. The sealing ring is provided with a second middle inner hole. The first middle inner hole of the metal casing and the second middle inner hole of the sealing ring are connected with a shaft extension in a matching way. The sealing ring is tightly connected with an end cover boss. The labyrinth ring covers the edge of the end cover boss. The sealing ring is arranged in the metal casing. Compared with the prior art, the utility model has the advantages of wide application scope, high safety and reliability, convenient use and the like.
Description
Technical field
The utility model relates to a kind of sealing device of motor, especially relates to a kind of motor reel face seals.
Background technology
As shown in Figure 1; the domestic electric machine industry is united the IP55 of unified design at present; the IP56 motor; the shaft extension place all adopts outside framework oil seal to seal gap between axle and the end cap; mainly utilize in the oil sealing skeleton steel ring tightly rubber ring to be buckled in the use to reach protection motor shaft extension on the shaft extension and do not intake; the purpose of dirt; because the outside framework oil seal design mainly is used for gear box and oil pump; be that the course of work has grease to mix with break-in; but electric motor end cap and shaft extension are dryings to be cooperated; so in use through regular meeting the electromechanics sound pitch takes place; the bearing temperature rise height; unfavorable situations such as the big efficient of the loss of electric machine is low; in addition; outside framework oil seal is owing to need be installed in the end cap counterbore when installing, and motor shaft still has low amounts of water to enter motor along counterbore when stretching to installation.
Summary of the invention
The purpose of this utility model is exactly to provide a kind of scope of application motor reel face seals wide, safe and reliable, easy to use for the defective that overcomes above-mentioned prior art existence.
The purpose of this utility model can be achieved through the following technical solutions:
A kind of motor reel face seals, it is characterized in that, comprise metal-back, sealing ring, endoporus, labyrinth circle in the middle of described metal-back is provided with first, endoporus in the middle of described sealing ring is provided with second, the first middle endoporus of described metal-back, the second middle endoporus and the shaft extension of sealing ring are connected, and described sealing ring closely is connected with the end cap boss, described labyrinth circle lid is gone into end cap boss limit, and described sealing ring is positioned within the metal-back.
Described metal-back is provided with cold-reduced sheet and zinc coat, chromium coating from inside to outside successively.
Compared with prior art, the utlity model has following advantage:
1, the scope of application is wide: motor reel end face seal structure device can be widely used in IP55, IP56, on the special degree of protection motor of IP65, also can carry out selection according to the machine operation environment, can adopt common metal, the stainless steel metal material, General Purpose Rubber, fluorine glue, especially to high temperature resistant, low temperature resistant requirement is high, special occasions such as be corrosive is all applicable, motor reel end face seal structure device especially is fit to use on the high energy efficiency motor, compared with prior art motor is reduced mechanical loss, reduce bearing temperature rise, reduce noise obvious improving effect is arranged, in the time of on motor shaft stretches to, the axial end hermetically-sealed construction is owing to stopped the phenomenon of motor shaft extension infiltration substantially under the effect in centrifugal force and labyrinth.
2, safe and reliable: invention has taken into full account safety in utilization;
3, easy to use: the axial end hermetically-sealed construction adopts pattern to be pressed into, and it is very convenient to install, safeguard.
Description of drawings
Fig. 1 is an existing hermetically-sealed construction of the present utility model;
Fig. 2 is a structural representation of the present utility model.
Embodiment
Below in conjunction with the drawings and specific embodiments the utility model is elaborated.
Embodiment
As shown in Figure 2, a kind of motor reel face seals, comprise metal-back 1, sealing ring 2, endoporus, labyrinth circle 4 in the middle of described metal-back 1 is provided with first, endoporus in the middle of described sealing ring 2 is provided with second, the first middle endoporus of described metal-back 1, the second middle endoporus and the shaft extension 5 of sealing ring 2 are connected, and described sealing ring 2 closely is connected with end cap boss 3, described labyrinth circle 4 lids are gone into end cap boss 3 limits, and described sealing ring 2 is positioned within the metal-back 1.Described metal-back 1 is provided with cold-reduced sheet and zinc coat, chromium coating from inside to outside successively.Described sealing ring 2 adopts NRB70 ℃ (Japanese auspicious father-in-law), temperature-40 ℃--and 130 ℃.
The endoporus of axial end sealing device and shaft extension 5 interference fits, rely on the mould location that the axial end sealing device is pressed into shaft extension 5, make labyrinth circle 4 lids of metal-back 1 go into end cap boss 3 limits, sealing ring 2 is close to end cap boss 3 planes, mechanical seal and lip packing are organically combined, thereby play good dustproof, waterproof action.
The protection of 1 pair of sealing ring 2 of dependence metal-back and the effect that sealing ring 2 is close to end cap boss 3 planes are gone up in the static protection of the utility model; avoided the frontal impact of solia particle intrusion and water; dynamically relying on action of centrifugal force to reach the superior dynamic seal (packing) of nature in the protection; because action of centrifugal force in the time of dynamically; sealing ring 2 becomes little being attached on end cap boss 3 planes by being close to; the motor axial friction reduces with the increase of rotary speed, makes the electromechanics loss reach minimum.
Claims (2)
1. motor reel face seals, it is characterized in that, comprise metal-back, sealing ring, endoporus, labyrinth circle in the middle of described metal-back is provided with first, endoporus in the middle of described sealing ring is provided with second, the first middle endoporus of described metal-back, the second middle endoporus and the shaft extension of sealing ring are connected, and described sealing ring closely is connected with the end cap boss, described labyrinth circle lid is gone into end cap boss limit, and described sealing ring is positioned within the metal-back.
2. a kind of motor reel face seals according to claim 1 is characterized in that described metal-back is provided with cold-reduced sheet and zinc coat, chromium coating from inside to outside successively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201454367U CN201667573U (en) | 2010-03-30 | 2010-03-30 | Motor shaft end surface sealing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201454367U CN201667573U (en) | 2010-03-30 | 2010-03-30 | Motor shaft end surface sealing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201667573U true CN201667573U (en) | 2010-12-08 |
Family
ID=43268534
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010201454367U Expired - Lifetime CN201667573U (en) | 2010-03-30 | 2010-03-30 | Motor shaft end surface sealing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201667573U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102280966A (en) * | 2011-08-03 | 2011-12-14 | 江苏微特利电机制造有限公司 | Output shaft end radial water-throwing shaft sealing structure of motor |
| CN102280967A (en) * | 2011-08-03 | 2011-12-14 | 江苏微特利电机制造有限公司 | External shaft seal structure for motor output shaft end |
| CN102738947A (en) * | 2011-03-29 | 2012-10-17 | 江海青 | Sealing device for refiner |
-
2010
- 2010-03-30 CN CN2010201454367U patent/CN201667573U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102738947A (en) * | 2011-03-29 | 2012-10-17 | 江海青 | Sealing device for refiner |
| CN102280966A (en) * | 2011-08-03 | 2011-12-14 | 江苏微特利电机制造有限公司 | Output shaft end radial water-throwing shaft sealing structure of motor |
| CN102280967A (en) * | 2011-08-03 | 2011-12-14 | 江苏微特利电机制造有限公司 | External shaft seal structure for motor output shaft end |
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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 |
Granted publication date: 20101208 |
|
| CX01 | Expiry of patent term |