CN208153695U - A kind of speed reducer shaft-head sealing device - Google Patents
A kind of speed reducer shaft-head sealing device Download PDFInfo
- Publication number
- CN208153695U CN208153695U CN201820544081.5U CN201820544081U CN208153695U CN 208153695 U CN208153695 U CN 208153695U CN 201820544081 U CN201820544081 U CN 201820544081U CN 208153695 U CN208153695 U CN 208153695U
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- CN
- China
- Prior art keywords
- sealing ring
- speed reducer
- ring
- end cap
- drainback passage
- 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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- Gasket Seals (AREA)
Abstract
A kind of speed reducer shaft-head sealing device, belongs to shaft head seal technical field.It is characterized in that：Including coaxial mounted end cap（1）And sealing ring（3）, sealing ring（3）Inner wall is equipped with O-shaped seal chamber（5）, sealing ring（3）With end cap（1）The end face of contact is equipped with sealed groove, sealing ring（3）Drainback passage, end cap are provided on inner wall（1）On be correspondingly provided with connection speed reducer inner cavity backflow through hole, backflow through hole outer end communication seals ring（2）Interior drainback passage.The utility model is using in such a way that spindle nose position increases a set of combination sealing arrangement, the advantages of two kinds of sealing means, is organically combined, form a kind of closed, the characteristics of backbone sealing ring, O-ring, mechanical seal, is combined, in sealing device bottom, drainback passage is set, drilling is penetrated through with drainback passage on original end cap, even if there is leakage phenomenon once in a while, also can return to reduction gear oil tank by drainback passage.
Description
Technical field
A kind of speed reducer shaft-head sealing device, belongs to shaft head seal technical field.
Background technique
Grinding machine main gear reducer, is the important component of drive system of cement grinding mill, it steadily passes high-voltage electric mechanomotive force
Entire cement mill is passed, low-speed heave-load device is belonged to, operating load is big, and temperature is high, and environment is more severe.In the prior art,
Speed reducer spindle nose sealing means are packing seal, in speed reducer output shaft two side ends bezel ring, to being placed with two circle packing_seal parts, by
In by factors packing agings soon such as speed reducer long term high temperature transmitting, sealing effect is lost, live oil leak is serious.Located repeatedly
Ineffective, oil leak initial stage replacement packing seal element is managed, 2 can only be maintained using the happy safe 9587 speed reducer special seal gums of high temperature resistant
There is oil leakage phenomenon again in a month time after 2 months.Not only the waste of oil product had been caused, but also has caused environmental pollution, has increased worker's
Labor intensity.
Summary of the invention
Technical problem to be solved in the utility model is：It is simple, close to overcome the deficiencies of the prior art and provide a kind of structure
Envelope is reliable, thoroughly prevents the speed reducer shaft-head sealing device of oil leak.
The utility model solve its technical problem the technical solution adopted is that：The speed reducer shaft-head sealing device, feature
It is：Including coaxial mounted end cap and sealing ring, sealing ring outer ring passes through fixing bolt connection end cap, sets on sealing ring inner wall
There is O-shaped seal chamber, the end face that sealing ring is contacted with end cap is equipped with sealed groove, is provided with drainback passage on sealing ring inner wall, holds
Cover the backflow through hole for being correspondingly provided with connection speed reducer inner cavity, the drainback passage in the communication seals ring of backflow through hole outer end.
The utility model is using in such a way that spindle nose position increases a set of combination sealing arrangement, by the excellent of two kinds of sealing means
Point organically combines, and forms a kind of closed, the characteristics of backbone sealing ring, O-ring, mechanical seal is combined,
Drainback passage is arranged in sealing device bottom, and drilling is penetrated through with drainback passage on original end cap, even if there is leakage phenomenon once in a while,
Reduction gear oil tank can be returned to by drainback passage.
The drainback passage includes oil-recovery tank and oil return hole, and oil-recovery tank is the blind hole being axially arranged, the opening of oil-recovery tank
The backflow through hole of end connection end cap, oil return hole and oil-recovery tank vertical connection, and oil return hole one end is connected to O-shaped seal chamber.
The oil return hole be equipped with it is multiple, multiple oil return holes are staggered in parallel.
Mounting O-shaped sealing ring in the O-shaped seal chamber, O-ring seal use φ 5mm rubber seal.
The backbone sealing ring of installation polyurethane material in the sealed groove.Backbone sealing ring uses high-quality polyurethane material
Aging should not occur in material, 220 DEG C of operating temperature -40- ﹢.
Compared with prior art, beneficial effect possessed by the utility model is：The utility model is used in spindle nose position
The advantages of two kinds of sealing means, is organically combined, forms a kind of closed by the mode for increasing a set of combination sealing arrangement,
The characteristics of backbone sealing ring, O-ring, mechanical seal, is combined, drainback passage is set in sealing device bottom, at original end
It covers drilling and drainback passage penetrates through, even if there is leakage phenomenon once in a while, also can return to reduction gear oil tank by drainback passage.
The characteristics of backbone sealing ring, O-ring, mechanical seal, is combined, is processed according to reductor shaft area of bed a set of
Combination sealing arrangement, the technical point for combining the unit processing are the tolerance dimension of hole and axis, the ruler of mechanical seal tolerance use ± 0
It is very little, it is equipped with backbone sealing ring sealing room in sealing device and O-ring seals room.Backbone sealing ring uses high-quality polyurethane material
Aging should not occur in material, operating temperature -40 ± 220 DEG C, and O-ring seal uses φ 5mm high-temperature resistant rubber sealing ring, effectively
The service life for improving sealing device, reduces labor intensity.
Detailed description of the invention
Fig. 1 is schematic diagram after the installation of speed reducer shaft-head sealing device.
Fig. 2 is speed reducer spindle nose schematic diagram of sealing device.
Wherein, 1, end cap 2, output shaft 3, sealing ring 4, fixing bolt 5, O-shaped seal chamber 6, oil return hole
7, oil-recovery tank 8, backbone sealing ring.
Specific embodiment
Fig. 1 ~ 2 are the most preferred embodiments of the utility model, and 1 ~ 2 pair of the utility model is done furtherly with reference to the accompanying drawing
It is bright.
Referring to attached drawing 1 ~ 2：A kind of speed reducer shaft-head sealing device, including coaxial mounted end cap 1 and sealing ring 3, sealing
3 outer ring of ring is equipped with O-shaped seal chamber 5 by 4 connection end cap 1 of fixing bolt, 3 inner wall of sealing ring, and sealing ring 3 is contacted with end cap 1
End face be equipped with sealed groove, be provided with drainback passage on 3 inner wall of sealing ring, connection speed reducer inner cavity be correspondingly provided on end cap 1
Backflow through hole, the drainback passage in backflow through hole outer end communication seals ring 2.
Drainback passage includes oil-recovery tank 7 and oil return hole 6, and oil-recovery tank 7 is the blind hole being axially arranged, the open end of oil-recovery tank 7
It is connected to the backflow through hole of end cap 1, oil return hole 6 and 7 vertical connection of oil-recovery tank, and 6 one end of oil return hole is connected to O-shaped seal chamber 5.
Oil return hole 6 be equipped with it is multiple, multiple oil return holes 6 are staggered in parallel.Mounting O-shaped sealing ring in O-shaped seal chamber 5, it is O-shaped
Sealing ring uses φ 5mm rubber seal.The backbone sealing ring 8 of installation polyurethane material in sealed groove.Combination unit processing
Technical point be the tolerance dimension of hole and axis, it is close to be equipped with skeleton in sealing device for the size of mechanical seal tolerance use ± 0
Seal sealed groove and O-ring seal chamber.The high-quality polyurethane material of the use of backbone sealing ring 8, operating temperature -40 ± 220 DEG C, no
Preferably there is aging, O-ring seal uses φ 5mm high-temperature resistant rubber sealing ring.
The utility model is formd according to the use environment and work characteristics of low-speed heave-load speed reducer by many experiments
A kind of mechanical seal adds the mode that rubber seal combines, and the advantages of two kinds of sealing means is organically combined, at present using effect
Well.Specifically, increase a set of combination sealing arrangement in spindle nose position, by backbone sealing ring 8, O-ring seal, mechanical seal
Feature is combined, and processes a set of combination sealing arrangement according to reductor shaft area of bed, the technical point for combining the unit processing is
It is close to be equipped with skeleton in sealing device for the tolerance dimension in hole and speed reducer output shaft 2, the size of mechanical seal tolerance use ± 0
Seal sealed groove and O-ring seal chamber 5.The high-quality polyurethane material of the use of backbone sealing ring 8,220 DEG C of operating temperature -40- ﹢,
Aging should not occur, O-ring seal uses φ 5mm high-temperature resistant rubber sealing ring.In sealing device bottom, oil return hole 6 is set,
It drills on original end cap 1, and penetrates through it with oil-recovery tank 7, even if even have leakage phenomenon, lubricating oil can also be returned by oil-recovery tank 7
Into reduction gear oil tank, the phenomenon that thoroughly having prevented oil leak.
The above descriptions are merely preferred embodiments of the present invention, is not to make other forms to the utility model
Limitation, any person skilled in the art is changed or is modified as possibly also with the technology contents of the disclosure above equivalent
The equivalent embodiment of variation.But it is all without departing from the content of the technical scheme of the utility model, the technology according to the utility model is real
Matter any simple modification, equivalent variations and remodeling to the above embodiments, still fall within the guarantor of technical solutions of the utility model
Protect range.
Claims (5)
1. a kind of speed reducer shaft-head sealing device, it is characterised in that：Including coaxial mounted end cap（1）And sealing ring（3）, sealing
Ring（3）Outer ring passes through fixing bolt（4）Connection end cap（1）, sealing ring（3）Inner wall is equipped with O-shaped seal chamber（5）, sealing ring（3）
With end cap（1）The end face of contact is equipped with sealed groove, sealing ring（3）Drainback passage, end cap are provided on inner wall（1）Upper correspondence is set
There are the backflow through hole of connection speed reducer inner cavity, backflow through hole outer end communication seals ring（2）Interior drainback passage.
2. a kind of speed reducer shaft-head sealing device according to claim 1, it is characterised in that：The drainback passage includes
Oil-recovery tank（7）And oil return hole（6）, oil-recovery tank（7）For the blind hole being axially arranged, oil-recovery tank（7）Open end be connected to end cap（1）'s
Backflow through hole, oil return hole（6）With oil-recovery tank（7）Vertical connection, and oil return hole（6）One end is connected to O-shaped seal chamber（5）.
3. a kind of speed reducer shaft-head sealing device according to claim 2, it is characterised in that：The oil return hole（6）If
There are multiple, multiple oil return holes（6）It is staggered in parallel.
4. a kind of speed reducer shaft-head sealing device according to claim 1, it is characterised in that：The O-shaped seal chamber（5）
Interior mounting O-shaped sealing ring, O-ring seal use φ 5mm rubber seal.
5. a kind of speed reducer shaft-head sealing device according to claim 1, it is characterised in that：Peace in the sealed groove
Fill the backbone sealing ring of polyurethane material（8）.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820544081.5U CN208153695U (en) | 2018-04-17 | 2018-04-17 | A kind of speed reducer shaft-head sealing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820544081.5U CN208153695U (en) | 2018-04-17 | 2018-04-17 | A kind of speed reducer shaft-head sealing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208153695U true CN208153695U (en) | 2018-11-27 |
Family
ID=64379630
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820544081.5U Expired - Fee Related CN208153695U (en) | 2018-04-17 | 2018-04-17 | A kind of speed reducer shaft-head sealing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208153695U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116428330A (en) * | 2023-02-24 | 2023-07-14 | 浙江大学 | Sealing structure of high-pressure hydraulic speed changer |
-
2018
- 2018-04-17 CN CN201820544081.5U patent/CN208153695U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116428330A (en) * | 2023-02-24 | 2023-07-14 | 浙江大学 | Sealing structure of high-pressure hydraulic speed changer |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20181127 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |