CN202691045U - Centrifugal lossless seal dual oil return structure - Google Patents
Centrifugal lossless seal dual oil return structure Download PDFInfo
- Publication number
- CN202691045U CN202691045U CN 201220339823 CN201220339823U CN202691045U CN 202691045 U CN202691045 U CN 202691045U CN 201220339823 CN201220339823 CN 201220339823 CN 201220339823 U CN201220339823 U CN 201220339823U CN 202691045 U CN202691045 U CN 202691045U
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- Prior art keywords
- end cap
- casing
- oil return
- oil
- spill port
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Abstract
The utility model discloses a centrifugal lossless seal dual oil return structure, characterized in that a shaft (2) is arranged in a case (1) through a bearing (3), an adjusting ring (5) and an end cover (7) are used for locating the bearing (3), the shaft (2) is respectively provided with an oil slinger (4) and a dust cover (9) from interior to exterior, the end cover (7) is located between the oil slinger (4) and the dust cover (9), a left sealing cavity (8) and a right sealing cavity (11) are respectively formed by the end cover (7), the oil slinger (4) and the dust cover (9), the end cover (7) and the case (1) are respectively provided with two ways of an end cover oil return hole (6) and a case oil return hole (10), and the end cover oil return hole (6) and the case oil return hole (10) are connected in the case so as to form an oil return passage. According to the utility model, centrifugal motion is generated by a medium into the sealing cavity through shaft rotation, so that a sealing effect is realized, the centrifugal lossless seal dual oil return structure is a non-contact lossless seal dual oil return structure, which has the advantages of incapability of replacing quick-wear parts and low maintenance cost.
Description
Technical field
The utility model belongs to mechanical field, is specifically related to the two oil-returning structures of centrifugal lossless sealing of mechanical transmission swivel gear.
Background technique
Swivel gear is widely used in the mechanical transmission industries such as metallurgy, mine, transportation, lifting, coal mine machinery, cement building material.Relative movement part is lubricated take bath-splash lubrication or external recycle oil pressure lubrication as main in the mechanical transmission swivel gear casing of domestic market.Mainly with seal ring or the auxiliary master that is sealed into other structural types of seal ring, the effect of sealing depends primarily on manufacturing, the installation precision of axle and hole and seal ring in the sealing at the positions such as the power input shaft of mechanical transmission swivel gear and output shaft.Seal ring is usually because wearing and tearing or failure cause cause seal ring from the lip leakage of oil in the machine using process.
Summary of the invention
The purpose of this utility model is: design the two oil-returning structures of a kind of centrifugal lossless sealing, the two oil-returning structures of sealing are positioned at power input shaft and the output shaft position of mechanical transmission swivel gear and play sealing oil return effect, be noncontact seal, two-way oil-returning structure, nothing wearing and tearing in the machine using process, non-maintaining, sealability is reliable, and sealing effect is desirable.
Technical solution of the present utility model is: the mechanical transmission swivel gear comprises casing, axle, bearing, adjustment ring, end cap, axle is installed in the casing by bearing, adjustment ring and end cap are used for positioning bearing in the position of casing, it is characterized in that: at axle the two oil-returning structures of sealing are installed, the two oil-returning structures of described sealing comprise disc, dust cover, end cap spill port and casing spill port, disc and dust cover are installed respectively on the axle from inside to outside, end cap is between disc and dust cover, end cap and disc and dust cover form respectively left Seal cage and right Seal cage, establish respectively end cap spill port and the casing spill port of two-way on end cap and the casing, end cap spill port and casing spill port interpenetrate to get back to and form drainback passage in the casing.
Wherein, end cap axially is provided with a circular groove at least at its two ends.
During work, the disc and the dust cover that are installed on the axle rotate with axle, when disc rotates with axle, drive enters the lubricant oil rotation of left Seal cage and produces centrifugal motion, lubricant oil flies away from disc and converges rear inflow end cap spill port along left Seal cage, flow back in the casing along end cap spill port and casing spill port; The foreign material such as dust that enter simultaneously right Seal cage outside the casing also are barred from outside the right Seal cage because producing centrifugal motion with the dust cover rotation.
The utlity model has following advantage: 1. utilize axle to rotate and make the medium generation centrifugal motion that enters Seal cage reach sealing effect; 2. the sealing structure is contactless harmless sealing, need not to change easily damaged parts, and maintenance cost is low; 3. the dust cover on the axle, disc form Seal cage with end cap respectively, need not accurate centering during installation, have reduced the mounting process level.
Description of drawings
Fig. 1 is one of structural representation of the present utility model.
Fig. 2 is two of structural representation of the present utility model.
Among the figure: 1. casing, 2. axle, 3. bearing, 4. disc, 5. adjustment ring, 6. end cap spill port, 7. end cap, 8. left Seal cage, 9. dust cover, 10 casing spill ports, 11 right Seal cages.
Embodiment
The utility model is described in further detail below in conjunction with accompanying drawing.
Such as Fig. 1, shown in 2, the mechanical transmission swivel gear comprises casing 1, axle 2, bearing 3, adjustment ring 5, end cap 7, axle 2 is installed in the casing 1 by bearing 3, adjustment ring 5 and end cap 7 are used for positioning bearing 3 in the position of casing 1, it is characterized in that: at axle 2 the two oil-returning structures of sealing are installed, the two oil-returning structures of described sealing comprise disc 4, dust cover 9, end cap spill port 6 and casing spill port 10, disc 4 and dust cover 9 are installed respectively on axle 2 from inside to outside, end cap 7 is between disc 4 and dust cover 9, end cap 7 forms respectively left Seal cage 8 and right Seal cage 11 with disc 4 and dust cover 9, establish respectively end cap spill port 6 and the casing spill port 10 of two-way on end cap 7 and casing 1, end cap spill port 6 and casing spill port 10 interpenetrate to get back to and form drainback passage in the casing.
Wherein, end cap 7 is axially established a circular groove at least at its two ends.
During work, the disc 4 and the dust cover 9 that are installed on the axle 2 rotate with axle 2, when disc 4 rotates with axle 2, drive enters the lubricant oil rotation of left Seal cage 8 and produces centrifugal motion, lubricant oil flies away from disc 4 and converges rear inflow end cap spill port 6 along left Seal cage 8, flow back in the casing along end cap spill port 6 and casing spill port 10; The foreign material such as dust that enter simultaneously right Seal cage 11 outside the casing also leave right Seal cage 11 because producing centrifugal motion with dust cover 9 rotations.
Claims (2)
1. centrifugal lossless seals two oil-returning structures, the mechanical transmission swivel gear comprises casing (1), axle (2), bearing (3), adjustment ring (5), end cap (7), axle (2) is installed in the casing (1) by bearing (3), adjustment ring (5) and end cap (7) are used for positioning bearing (3) in the position of casing (1), it is characterized in that: at axle (2) the two oil-returning structures of sealing are installed, the two oil-returning structures of described sealing comprise disc (4), dust cover (9), end cap spill port (6) and casing spill port (10), disc (4) and dust cover (9) are installed respectively on axle (2) from inside to outside, end cap (7) is positioned between disc (4) and the dust cover (9), end cap (7) forms respectively left Seal cage (8) and right Seal cage (11) with disc (4) and dust cover (9), establish respectively end cap spill port (6) and the casing spill port (10) of two-way on end cap (7) and casing (1), end cap spill port (6) and casing spill port (10) interpenetrate to get back to and form drainback passage in the casing.
2. two oil-returning structures of centrifugal lossless according to claim 1 sealing is characterized in that: end cap (7) axially is provided with a circular groove at least its two ends.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220339823 CN202691045U (en) | 2012-07-14 | 2012-07-14 | Centrifugal lossless seal dual oil return structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220339823 CN202691045U (en) | 2012-07-14 | 2012-07-14 | Centrifugal lossless seal dual oil return structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202691045U true CN202691045U (en) | 2013-01-23 |
Family
ID=47546669
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220339823 Expired - Lifetime CN202691045U (en) | 2012-07-14 | 2012-07-14 | Centrifugal lossless seal dual oil return structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202691045U (en) |
Cited By (1)
| 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 |
-
2012
- 2012-07-14 CN CN 201220339823 patent/CN202691045U/en not_active Expired - Lifetime
Cited By (1)
| 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 |
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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 | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130123 |