CN208778700U - A kind of sealing structure of roller and rotary shaft - Google Patents
A kind of sealing structure of roller and rotary shaft Download PDFInfo
- Publication number
- CN208778700U CN208778700U CN201821382174.9U CN201821382174U CN208778700U CN 208778700 U CN208778700 U CN 208778700U CN 201821382174 U CN201821382174 U CN 201821382174U CN 208778700 U CN208778700 U CN 208778700U
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- Prior art keywords
- roller
- axle sleeve
- big axis
- shield
- oil
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- Sealing Using Fluids, Sealing Without Contact, And Removal Of Oil (AREA)
- Sealing Devices (AREA)
Abstract
A kind of sealing structure of roller and rotary shaft, it includes the big axis (2-10) being mounted in axle sleeve (2-6) by bearing (2-9), the roller (2-1) combined by screw (2-3) with the left side of big axis boss, it is characterized by: the right end anchor ring of the boss in big axis (2-10), section is provided in the annular space that axle sleeve (2-6) inner ring surface and the left side bearing (2-9) collectively form to be stepped the oil scraper ring plate (2-8) of structure, the shield (2-2) as containment member is set in the left end anchor ring of roller (2-1) flange combined with big axis boss left side, the right elongated end of the shield (2-2) is combined by connector with the left end axle sleeve (2-6).
Description
Technical field
The utility model relates to a kind of sealing structure, particularly relate to chemical fibre equipment for after-treatment drafting machine drawing-off roller and
Rotate shaft seal.
Background technique
Chemical fibre equipment for after-treatment mainly uses the draft process of " one vapour of a water " to carry out drawing-off to tow.Thus post-processed
Tow contains a large amount of water in journey.Lubricating oil in drawing-off box body plays the bearing and transmission gear of the support big axis of drawing-off roller
Lubrication and heat spreading function.Thus to guarantee the normal operation of drafting machine, the sealing of roller and bearing is reliable, guarantees in tow
Water not can enter cabinet, and the intracorporal lubricating oil of case cannot be revealed.Meanwhile under the premise of meeting service performance, structure letter is made every effort to
It is single, it is convenient to install and maintain.
In the prior art, the sealing of roller and rotary shaft uses two covering devices.The sealing of rotary shaft uses Chinese patent
The technology of CN203962702U (see 1 right end of attached drawing).In the flange end land and bearing 12 of big axis 13 and the end face of axle sleeve 10
Between be provided with that section is stepped the sawtooth oil scraper ring plate 11 of structure and section is stepped 7 groups of plate of ear shape oil scraper ring of structure
At containment member；Ear shape oil scraper ring 7 is combined by connection bolt and sealing ring with the end face of axle sleeve 10；Ear shape oil scraper ring
The buckling surface of plate 7 and sawtooth oil scraper ring plate 11 is ring groove shape structure, and the oil return hole being arranged on axle sleeve 10 is in a horizontal state, and oil return is not
Benefit has leakage phenomenon.
The sealing of roller uses Chinese patent CN204239746U technology (1 left end of attached drawing).Roller 1 is arranged by flange portion
Land combined with the land of big 13 flange end of axis, 1 land rear portion of roller by connector be sequentially installed with oil scraper ring 5,
Baffle ring 3 is provided with O-ring seal 2, oil scraper ring 5 and roller end between the inner ring surface of oil scraper ring 5 and the mating surface of roller barrel
First of backbone sealing ring 4 is respectively arranged between the land facade of setting and between 7 end face of outer shield and second skeleton is close
Seal 6.Gap is too small between oil scraper ring and big axis and the external cylindrical surface of roller in the technology, during equipment operation, big axis
And roller is increased as bearing and gear temperature increase, in generation vacuum phenomenon, water on tow is there are in cavity, drainage
It is unsmooth, cabinet can be penetrated into the cylindrical surface gap of axle sleeve 10 and oil scraper ring plate 11, cause emulsification of lubricant in cabinet, lead to axis
It holds bad with gear lubrication, causes equipment fault.
Summary of the invention
The purpose of this utility model exactly in view of the above-mentioned deficiencies in the prior art place and a kind of structure, property are provided
It can reliable roller and rotation shaft seal.
The purpose of this utility model can be achieved through the following technical solutions:
The roller of the utility model and the sealing structure of rotary shaft include the big axis being mounted in axle sleeve by bearing, are passed through
The roller that screw is combined with the left side of big axis boss；Right end anchor ring, axle sleeve inner ring surface in the boss of big axis
And be provided with section in the annular space that collectively forms of left end face and be stepped the oil scraper ring plate of structure, with big axis axis
The left end anchor ring for the roller flange that end flanges left side combines is set with the shield as containment member, and the right side of the shield is prolonged
End is stretched to combine by connector with axle sleeve left end.
The right elongated end of shield described in the utility model is mutually tied by the left side of connection bolt and gasket and axle sleeve
It closes；Chamfering is provided on the outside of the inner hole left end that the shield is matched with the roller surface for being located at roller flange left end, and shield is right
The internal diameter of elongated end is greater than 10 ~ 15mm of outer diameter of big axis boss, roller flange.
The oil scraper ring plate is fitted together in a manner of stationary fit with large shaft sleeve, and the oil scraper ring plate matches interior with big axis
Anchor ring left end is cone annuli arrangement, and the periphery right part matched with axle sleeve inner ring surface is machined with labyrinth seal structure, ring
It is provided on the right side of shape oil groove and extends to the periphery end oil scraper ring plate；The axle sleeve right side is machined with the annular groove for loading O-ring,
The axle sleeve inner ring surface left end matched with oil scraper ring plate outer ring surface is machined with the annular groove for loading felt collar, the right side of axle sleeve inner ring surface
The labyrinth seal structure that side section is machined with to be matched with the labyrinth seal structure that oil scraper ring plate periphery right part processes；
It is machined with the annular collection oil duct of right side opening in the sleeve body, offers oil return at the concave bottom position of annular collection oil duct
Hole, the oil return hole are arranged with the angle tilt of 8 ~ 15o.
The big axis axis of land formula that the roller passes through the right part land formula roller flange being arranged and the setting of big axis left part
End flanges combine.
The beneficial effects of the utility model are as follows:
A. the gap on shield inner headed face and roller and big axis big end cylindrical surface increases, and will not generate negative pressure appearance；Lower part is returned
Water hole increases, and return water is more smooth.
B. increase sealing ring sealing together between axle sleeve inner headed face and oil scraper ring external cylindrical surface left end, right end increases to be confused together
Palace sealing, separates oil pocket and external water cavity, seals more reliable.
C. the oil return hole of axle sleeve lower end is increased and is tilted a certain angle, and oil return is smooth, guarantees that lubricating oil is not revealed.
D. number of parts is reduced, and structure is simple, and installation, maintenance is convenient.
E. it is provided with chamfering on the outside of the inner hole right end that shield is matched with the roller surface for being located at roller flange left end, facilitates shield
The installation of cover.
Detailed description of the invention
Fig. 1 is the main structure figure of the prior art.
Serial number in 1 in figure: 1 roller, 2O type circle, 3 pressing plates, 4 sealing rings, 5 outer plates, 6 sealing rings, 7 shields, 8 O
Type circle, 9 O-rings, 10 axle sleeves, 11 oil scraper rings, 12 bearings, 13 big axis.
Fig. 2 is the main sectional structure chart of the utility model.
Fig. 3 is the I position partial enlargement structure chart of Fig. 2.
Serial number in 2,3 in figure: 2-1 roller, 2-2 shield, 3 screw of 2-, 4 sealing ring of 2-, 5 gasket of 2-, 2-6 axle sleeve,
2-7 O-ring, 8 oil scraper ring of 2-, 9 bearing of 2-, the big axis of 2- 10,11 cabinet of 2-.
Specific embodiment
The utility model is described further below with reference to embodiment (attached drawing):
As shown in Figure 2,3, the sealing structure of the roller of the utility model and rotary shaft includes being mounted on axis by bearing 2-9
Cover the big axis 2-10, the roller 2-1 combined by screw 2-3 with the left side of big axis boss in 2-6；In big axis 2-10
Boss the annular space that collectively forms of right end anchor ring, axle sleeve 2-6 inner ring surface and the left side bearing 2-9 in be provided with
Section is stepped the oil scraper ring plate 2-8 of structure, in the left end of the roller 2-1 flange combined with big axis boss left side
The right elongated end that anchor ring is set with the shield 2-2, the shield 2-2 as containment member passes through connector and the left end axle sleeve 2-6
It combines.Furtherly: the land formula roller flange and the left part big axis 2-10 that the roller 2-1 is arranged by right part are arranged
The big axis boss of land formula combine.
The right elongated end of shield 2-2 described in the utility model is by connecting bolt and gasket 2-5 and axle sleeve 2-6's
Left side combines；It is provided on the outside of the inner hole left end that the shield 2-2 is matched with the roller surface for being located at roller flange left end
Chamfering, and the internal diameter of the right elongated end of shield 2-2 is greater than 10 ~ 15mm of outer diameter of big axis boss, roller flange.
The oil scraper ring plate 2-8 is set in together in a manner of stationary fit with big axis 2-10, the oil scraper ring plate 2-8 and big
The inner ring surface left end that axis 10 matches is cone annuli arrangement, the periphery right part processing matched with axle sleeve 2-6 inner ring surface
There is labyrinth seal structure, is provided on the right side of annular oil groove and extends to the periphery end oil scraper ring plate；The right side the axle sleeve 2-6 is machined with
For loading the annular groove of O-ring 2-7, the axle sleeve 2-6 inner ring surface left end matched with oil scraper ring plate 2-8 outer ring surface, which is machined with, to be used for
The annular groove of felt collar 2-4 is loaded, the right part of axle sleeve 2-6 inner ring surface is machined with and oil scraper ring plate 2-8 periphery right part
The labyrinth seal structure that the labyrinth seal structure processed matches；Right side opening is machined in the axle sleeve 2-6 ontology
Annular collection oil duct, annular collection oil duct concave bottom position offer oil return hole, the oil return hole is set with the angle tilt of 8 ~ 15o
It sets (referring to Fig. 3).
Claims (4)
1. the sealing structure of a kind of roller and rotary shaft, it includes the big axis being mounted in axle sleeve (2-6) by bearing (2-9)
(2-10), the roller (2-1) combined by screw (2-3) with the left side of big axis boss, it is characterised in that: in big axis
The annular that right end anchor ring, axle sleeve (2-6) inner ring surface and left side bearing (2-9) of the boss of (2-10) collectively form is empty
In be provided with section and be stepped the oil scraper ring plate (2-8) of structure, in the roller combined with big axis boss left side
The left end anchor ring of (2-1) flange is set with the shield (2-2) as containment member, and the right elongated end of the shield (2-2) passes through
Connector is combined with the left end axle sleeve (2-6).
2. the sealing structure of roller according to claim 1 and rotary shaft, it is characterised in that: prolong on shield (2-2) right side
It stretches end and is combined by connection bolt and gasket (2-5) with the left side of axle sleeve (2-6)；The shield (2-2) be located at
Chamfering, and the internal diameter of shield (2-2) right elongated end are provided on the outside of the inner hole left end that the roller surface of roller flange left end matches
Greater than big axis boss, 10 ~ 15mm of outer diameter of roller flange.
3. the sealing structure of roller according to claim 1 and rotary shaft, it is characterised in that: the oil scraper ring plate (2-8)
It is set in together in a manner of stationary fit with big axis (2-10), the inner ring that the oil scraper ring plate (2-8) matches with big axis (2-10)
Face left end is cone annuli arrangement, and the periphery right part matched with axle sleeve (2-6) inner ring surface is machined with labyrinth seal knot
Structure, annular oil groove right side, which is provided with, extends to the periphery end oil scraper ring plate；Axle sleeve (2-6) right side is machined with for loading O
The annular groove of type circle (2-7), axle sleeve (2-6) the inner ring surface left end matched with oil scraper ring plate (2-8) outer ring surface are machined with for filling out
The annular groove of felt collar (2-4) is filled, the right part of axle sleeve (2-6) inner ring surface is machined with and oil scraper ring plate (2-8) periphery right side
The labyrinth seal structure that the labyrinth seal structure that part processes matches；Right side is machined in the axle sleeve (2-6) ontology
The annular collection oil duct of face opening offers oil return hole at the concave bottom position of annular collection oil duct, and the oil return hole is with the angle of 8 ~ 15o
It is obliquely installed.
4. the sealing structure of roller according to claim 1 and rotary shaft, it is characterised in that: the roller (2-1) passes through
The land formula roller flange of right part setting is combined with the big axis boss of land formula that the big axis left part (2-10) is arranged.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821382174.9U CN208778700U (en) | 2018-08-27 | 2018-08-27 | A kind of sealing structure of roller and rotary shaft |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821382174.9U CN208778700U (en) | 2018-08-27 | 2018-08-27 | A kind of sealing structure of roller and rotary shaft |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208778700U true CN208778700U (en) | 2019-04-23 |
Family
ID=66158509
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821382174.9U Active CN208778700U (en) | 2018-08-27 | 2018-08-27 | A kind of sealing structure of roller and rotary shaft |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208778700U (en) |
-
2018
- 2018-08-27 CN CN201821382174.9U patent/CN208778700U/en active Active
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