CN209569339U - Contact type sealing device for multi-line cutting machine high-speed bearing case - Google Patents
Contact type sealing device for multi-line cutting machine high-speed bearing case Download PDFInfo
- Publication number
- CN209569339U CN209569339U CN201920175078.5U CN201920175078U CN209569339U CN 209569339 U CN209569339 U CN 209569339U CN 201920175078 U CN201920175078 U CN 201920175078U CN 209569339 U CN209569339 U CN 209569339U
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- Prior art keywords
- bearing
- gland
- sealing ring
- cutting machine
- contact type
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- 238000007789 sealing Methods 0.000 title claims abstract description 130
- 238000005520 cutting process Methods 0.000 title claims abstract description 45
- 210000004907 gland Anatomy 0.000 claims abstract description 58
- 238000003825 pressing Methods 0.000 claims abstract description 16
- 230000001105 regulatory effect Effects 0.000 claims abstract description 3
- 229920001343 polytetrafluoroethylene Polymers 0.000 claims description 10
- 239000004810 polytetrafluoroethylene Substances 0.000 claims description 10
- 238000009434 installation Methods 0.000 claims description 8
- -1 polytetrafluoroethylene Polymers 0.000 claims description 5
- 239000000463 material Substances 0.000 claims description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 8
- 230000000694 effects Effects 0.000 description 7
- 239000007788 liquid Substances 0.000 description 6
- 238000005461 lubrication Methods 0.000 description 4
- 239000003595 mist Substances 0.000 description 3
- 239000000843 powder Substances 0.000 description 3
- 238000004140 cleaning Methods 0.000 description 2
- 239000002131 composite material Substances 0.000 description 2
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 230000007797 corrosion Effects 0.000 description 2
- 238000005260 corrosion Methods 0.000 description 2
- 230000007246 mechanism Effects 0.000 description 2
- 230000032683 aging Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
Landscapes
- Sealing Of Bearings (AREA)
- Sealing Devices (AREA)
Abstract
For the contact type sealing device of multi-line cutting machine high-speed bearing case, including rear end gland, bearing block, front end gland, locking nut I, pressing sleeve, sealing ring I, lantern ring, main shaft, bearing I, bearing II, locking nut II, washer, sealing ring II, gland and sealing ring III；Sealing ring II is located between the flange and front end gland of main shaft, and washer is fixed on the gland of front end；Between gland and front end gland, gland is fixedly connected sealing ring III with the flange of main shaft；Bearing II is installed on main shaft, and is locked with locking nut II, and bearing II is located in bearing block；Bearing I is fixed on main shaft, and is fixed by pressing sleeve and locking nut I to bearing I, and bearing I is located in bearing block；Sealing ring I is installed between pressing sleeve and lantern ring, and lantern ring is mounted on the inside of the gland of rear end, and so that lantern ring is held out against bearing I by the regulating part on the gland of rear end.Using the utility model, it can guarantee that sealing performance meets the seal request of high-speed bearing case high-speed rotation.
Description
Technical field
The utility model relates to a kind of contact type sealing devices for multi-line cutting machine high-speed bearing case.
Background technique
Currently, the high-speed spindle bearing case master sealing means to be used of multi-line cutting machine are mostly hermetic in the market
Or labyrinth sealing.Hermetic seal is to be passed through air to bearing housing by external equipment (such as air compressor machine), makes bearing housing is inside and outside to generate
Certain pressure difference, achievees the effect that sealing, using hermetic seal, need to configure air compressor machine and related pneumatic element, and in bearing
Associated air line is also processed on case, structure is complicated, and it is at high cost, when air pressure is inadequate or cutting machine cutting chamber internal cutting flow velocity
When excessively high, bearing housing hermetic can fail.Labyrinth sealing is equally when cutting the excessively high cutting of flow velocity, seal form meeting
Failure.It will lead to bearing housing damage when water or cutting liquid enter on the inside of bearing housing；Split bearing case is using dust-proof in rotary shaft
Circle and sealing ring sealing structure form are not able to satisfy touching water type Seal in Bearing Box requirement, and dustband is applied to slow-speed of revolution axis more
It holds among case, it is difficult to adapt to high revolving speed bearing housing；Separately there is split bearing box structure using mechanical sealing is installed in rotary shaft, it should
Structure makes sealing ring be bonded axial plane using buffer compensation mechanism, and component parts are more, and occupied space is big, are unable to satisfy narrow space from peace
The use in space being filled, and mechanical sealing is not suitable for the actual use of multi-line cutting machine, multi-line cutting machine runs a period of time,
Cutting liquid is condensed in sealing ring and rotary shaft contact position after being mixed into material powder when cutting, so that buffer compensation failure mechanisms, axis
Fitting can not be remained to sealing.With the development of multi-line cutting machine, cutting speed is greatly improved, and cutting flow quantity is big therewith
Big to increase, high-speed bearing case waterproof is no longer satisfied bearing using hermetic seal, labyrinth type or simple contact type sealing structure
Case seal request, and common mechanical seal structure be unable to satisfy the narrow installation space of multi-line cutting machine bearing housing and complexity
Working environment.
Utility model content
Technical problem to be solved in the utility model is in view of the deficiencies of the prior art, to provide a kind of for multi-wire cutting
The contact type sealing device of cutting mill high-speed bearing case.
The technical scheme adopted by the utility model to solve the technical problem is as follows: a kind of be used for multi-line cutting machine high-speed bearing
The contact type sealing device of case, including rear end gland, bearing block, front end gland, locking nut I, pressing sleeve, sealing ring I, lantern ring,
Main shaft, bearing I, bearing II, locking nut II, washer, sealing ring II, gland and sealing ring III；The sealing ring II is located at master
Between the flange and front end gland of axis, the washer is fixed on the gland of front end, is limited to sealing ring II；The sealing ring
III between gland and front end gland, and the gland is fixedly connected with the flange of main shaft；The bearing II is installed on main shaft,
And locked with locking nut II, the bearing II is located in bearing block；The bearing I is fixed on main shaft, and by pressing sleeve and
Locking nut I fixes bearing I, and the bearing I is located in bearing block；The sealing ring I is installed on pressing sleeve and set
Between ring, the lantern ring is mounted on the inside of the gland of rear end, and so that lantern ring is held out against bearing I, institute by the regulating part on the gland of rear end
Rear end gland is stated to be fixedly connected with the bearing seat.
Further, the front end gland is fixed on bearing block end face, and the gland is fixed on main shaft end face, the two shape
At a three-dimensional two-stage sealing installation structure.
Further, O-ring seal is carried on the sealing ring II, the sealing force of O-ring seal can be with system pressure
It improves and improves, to adapt to Novel oil gas lubrication, when bearing housing internal chamber has compression oil gas, sealing effect can accordingly increase
By force, to guarantee sealing performance, meet the seal request of high-speed bearing case high-speed rotation.
Further, O-ring seal is carried on the sealing ring III, the sealing force of O-ring seal can be with system pressure
Improve and improve, when outside water presses through it is big when, sealing effect can accordingly enhance, to guarantee sealing performance, meet high-speed bearing
The seal request of case high-speed rotation.
Further, the sealing ring III is flange exposed structure.
Further, the sealing ring II uses radial seal.
Further, the sealing ring III uses axial seal form.
Further, the sealing ring I, sealing ring II, sealing ring III material be polytetrafluoroethylene (PTFE) (without O-ring seal)
Composite material, polytetrafluoroethylene (PTFE) with low friction and self-lubricating spy can, under high revolving speed, dynamic friction coefficient can be lower than 0.01, fit
It contacts and seals for high-speed state, and since it possesses high temperature resistant (can work long hours in 250 DEG C or less high temperature), it is resistance to old
Change, the characteristics such as corrosion-resistant, can fully ensure that performance of the sealing ring in the high rotational speed of main shaft is stablized, while meeting high-speed bearing
The seal request of case high-speed rotation.
Further, the washer is in plum blossom-shaped, is embedded on the gland of front end.
Further, the gland passes through the flanged joint of connector and main shaft.
The non-touch water end (W.E.) of the utility model high-speed bearing case uses single-stage seal form, by the way that pressing sleeve, I and of sealing ring is arranged
Lantern ring, so that pressing sleeve and lantern ring increase the space of installation sealing ring I while holding out against bearing I simultaneously, to realize sealing and adjust
The clearance of bearings I.The touching water end (W.E.) of the utility model high-speed bearing case is sealed using two-stage, including II radial seal of sealing ring,
III axial seal of sealing ring can effectively avoid cutting liquid from entering on the inside of bearing housing, and prevent internal mist of oil from leaking.
The utility model front end gland is fixed on bearing block end face, and gland is fixed on main shaft end face, and the two forms one
The two-stage sealing installation structure of a solid, installation sealing ring II and sealing ring III easy to disassemble, and sealing ring are to main shaft (containing pressure
Lid) friction pair is formed, increase sealing effect.
III flange of the utility model sealing ring is exposed, and the cleaning after the completion of convenient cutting every time is avoided with cutting bar
The cutting liquid of powder is condensed on sealing ring III, to avoid the failure of sealing ring III or coefficient of friction changes at this when high revolving speed
Caused overheat causes sealing ring III to damage.
The utility model both ends are sealed into contact seal, so that forming enclosure space on the inside of bearing housing, are applicable to new
Type fog lubrication form.
Using the utility model, it can guarantee that sealing performance meets the seal request of high-speed bearing case high-speed rotation.
Detailed description of the invention
Fig. 1 is the contact type sealing device structural schematic diagram that the utility model is used for multi-line cutting machine high-speed bearing case:
Fig. 2 is that partial enlargement of the utility model for the contact type sealing device of multi-line cutting machine high-speed bearing case shows
It is intended to；
Wherein: the rear end 1- gland, 2- bearing block, the front end 3- gland, 4- locking nut I, 5- pressing sleeve, 6- sealing ring I, 7- set
Ring, 8- main shaft, 9- bearing I, 10- bearing II, 11- locking nut II, 12- washer, 13- sealing ring II, 14- gland, 15- sealing
Circle III.
Specific embodiment
The following is a further explanation of the present invention with reference to the accompanying drawings and embodiments.
Embodiment
- Fig. 2 referring to Fig.1, a kind of contact type sealing device for multi-line cutting machine high-speed bearing case, including rear end gland
1, bearing block 2, front end gland 3, locking nut I 4, pressing sleeve 5, sealing ring I 6, lantern ring 7, main shaft 8, bearing I 9, bearing II 10, lock
Tight nut II 11, washer 12, sealing ring II 13, gland 14 and sealing ring III 15；The sealing ring II 13 is located at the flange of main shaft 8
Between (flange and main shaft are an integral structure) and front end gland 3, the washer 12 is in plum blossom-shaped, is embedded on front end gland 3,
Sealing ring II 13 is limited；For the sealing ring III 15 between gland 14 and front end gland 3, the gland 14 passes through spiral shell
The flanged joint of nail and main shaft 8；The bearing II 10 is installed on main shaft 8, and is locked with locking nut II 11, the bearing II
10 are located in bearing block 2；The bearing I 9 is fixed on main shaft 8, and is limited by I 4 pairs of bearings I 9 of pressing sleeve 5 and locking nut
Position is fixed, and the bearing I 9 is located in bearing block 2；The sealing ring I 6 is installed between pressing sleeve 5 and lantern ring 7, and the lantern ring 7 is pacified
Mounted in 1 inside of rear end gland, and lantern ring 7 is set to hold out against bearing I 9, institute by the adjusting screw (not shown) on rear end gland 1
Rear end gland 1 is stated to be threadedly coupled with bearing block 2.
In the present embodiment, the front end gland 3 is fixed on 2 end face of bearing block, and the gland 14 is fixed on 8 end face of main shaft
On, the two one three-dimensional two-stage sealing installation structure of formation, installation sealing ring II 13 and sealing ring III 15 easy to disassemble, and it is close
Seal contains gland 14 to main shaft 8() friction pair is formed, increase sealing effect.
In the present embodiment, O-ring seal is carried on the sealing ring II 13, the sealing force of O-ring seal can be with system
The raising of pressure and improve, for adapt to oil-air lubrication, when bearing housing internal chamber have compression oil gas when, sealing effect can accordingly increase
By force, to guarantee sealing performance, meet the seal request of high-speed bearing case high-speed rotation.
In the present embodiment, O-ring seal is carried on the sealing ring III 15, the sealing force of O-ring seal can be with system
The raising of pressure and improve, when outside water presses through it is big when, sealing effect can accordingly enhance, to guarantee sealing performance, meet high
The seal request of fast bearing housing high-speed rotation.
In the present embodiment, III 15 flange of sealing ring is exposed, and the cleaning after the completion of convenient cutting every time is avoided having and be cut
The cutting liquid for cutting bar powder is condensed on sealing ring III 15, to avoid the failure of sealing ring III 15 or be rubbed when high revolving speed at this
Wiping overheat caused by coefficient changes causes sealing ring III to damage.
In the present embodiment, the sealing ring II 13 uses radial seal.
In the present embodiment, the sealing ring III 15 uses axial seal form.
In the present embodiment, the sealing ring I, sealing ring II, sealing ring III material be polytetrafluoroethylene (PTFE) (without O-shaped close
Seal) composite material, polytetrafluoroethylene (PTFE) be with low friction and self-lubricating spy can, under high revolving speed, dynamic friction coefficient can be lower than
0.01, be suitable for high-speed state contact sealing, and due to it possesses high temperature resistant (can be in 250 DEG C or less high temperature long-time works
Make), ageing-resistant, the characteristics such as corrosion-resistant can fully ensure that performance of the sealing ring in the high rotational speed of main shaft is stablized, meet simultaneously
The seal request of high-speed bearing case high-speed rotation.
In the present embodiment, pressing sleeve 5 is adjusted by locking nut I 4 and adjusts screw (not shown) adjustment collar 7 to push up
Mandrel holds I, the clearance of adjustable bearings I.
In the utility model, the front end of high-speed bearing case is in multi-line cutting machine cutting chamber, to touch water end (W.E.), using two-stage
Seal form, including II radial seal of sealing ring, III axial seal of sealing ring, effectively can avoid cutting liquid from entering in bearing housing
Side, and prevent internal mist of oil from leaking；Non-touch water end (W.E.) uses single-stage seal form, it can be achieved that sealing and adjusting the clearance of bearing I.This
Outside, the utility model both ends are sealed into contact seal, so that forming enclosure space on the inside of bearing housing, are applicable to novel mist of oil
Lubrication form.
In brief, using the utility model, it can guarantee that sealing performance meets the sealing of high-speed bearing case high-speed rotation and wants
It asks.
Claims (10)
1. it is used for the contact type sealing device of multi-line cutting machine high-speed bearing case, including rear end gland, bearing block and front end gland,
It is characterized by: being additionally provided with locking nut I, pressing sleeve, sealing ring I, lantern ring, main shaft, bearing I, bearing II, locking nut II, pad
Circle, sealing ring II, gland and sealing ring III；The sealing ring II is located between the flange and front end gland of main shaft, the washer
It is fixed on the gland of front end, sealing ring II is limited；The sealing ring III is between gland and front end gland, the pressure
Lid is fixedly connected with the flange of main shaft；The bearing II is installed on main shaft, and is locked with locking nut II, II, the bearing
In in bearing block；The bearing I is fixed on main shaft, and is fixed by pressing sleeve and locking nut I to bearing I, institute
Bearing I is stated to be located in bearing block；The sealing ring I is installed between pressing sleeve and lantern ring, and the lantern ring is mounted in the gland of rear end
Side, and so that lantern ring is held out against bearing I by the regulating part on the gland of rear end, the rear end gland is fixedly connected with the bearing seat.
2. the contact type sealing device according to claim 1 for multi-line cutting machine high-speed bearing case, it is characterised in that:
The front end gland is fixed on bearing block end face, and the gland is fixed on main shaft end face, and the two forms one three-dimensional two
Grade sealing installation structure.
3. the contact type sealing device according to claim 1 or 2 for multi-line cutting machine high-speed bearing case, feature exist
In: O-ring seal is carried on the sealing ring II.
4. the contact type sealing device according to claim 1 or 2 for multi-line cutting machine high-speed bearing case, feature exist
In: O-ring seal is carried on the sealing ring III.
5. the contact type sealing device according to claim 1 or 2 for multi-line cutting machine high-speed bearing case, feature exist
In: the sealing ring III is flange exposed structure.
6. the contact type sealing device according to claim 1 or 2 for multi-line cutting machine high-speed bearing case, feature exist
In: the sealing ring II uses radial seal.
7. the contact type sealing device according to claim 1 or 2 for multi-line cutting machine high-speed bearing case, feature exist
In: the sealing ring III uses axial seal form.
8. the contact type sealing device according to claim 1 or 2 for multi-line cutting machine high-speed bearing case, feature exist
In: the sealing ring I, sealing ring II, III material of sealing ring are polytetrafluoroethylene (PTFE).
9. the contact type sealing device according to claim 1 or 2 for multi-line cutting machine high-speed bearing case, feature exist
In: the washer is in plum blossom-shaped, is embedded on the gland of front end.
10. the contact type sealing device according to claim 1 or 2 for multi-line cutting machine high-speed bearing case, feature
Be: the gland passes through the flanged joint of connector and main shaft.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920175078.5U CN209569339U (en) | 2019-01-31 | 2019-01-31 | Contact type sealing device for multi-line cutting machine high-speed bearing case |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920175078.5U CN209569339U (en) | 2019-01-31 | 2019-01-31 | Contact type sealing device for multi-line cutting machine high-speed bearing case |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209569339U true CN209569339U (en) | 2019-11-01 |
Family
ID=68333407
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920175078.5U Withdrawn - After Issue CN209569339U (en) | 2019-01-31 | 2019-01-31 | Contact type sealing device for multi-line cutting machine high-speed bearing case |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209569339U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109707851A (en) * | 2019-01-31 | 2019-05-03 | 宇晶机器（长沙）有限公司 | A kind of contact type sealing device for multi-line cutting machine high-speed bearing case |
-
2019
- 2019-01-31 CN CN201920175078.5U patent/CN209569339U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109707851A (en) * | 2019-01-31 | 2019-05-03 | 宇晶机器（长沙）有限公司 | A kind of contact type sealing device for multi-line cutting machine high-speed bearing case |
| CN109707851B (en) * | 2019-01-31 | 2024-03-08 | 宇晶机器（长沙）有限公司 | Contact type sealing device for high-speed bearing box of multi-wire sawing machine |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20191101 Effective date of abandoning: 20240308 |
|
| AV01 | Patent right actively abandoned |
Granted publication date: 20191101 Effective date of abandoning: 20240308 |
|
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |