CN110206884A - The mechanically-sealing apparatus being axially movable - Google Patents
The mechanically-sealing apparatus being axially movable Download PDFInfo
- Publication number
- CN110206884A CN110206884A CN201910494563.3A CN201910494563A CN110206884A CN 110206884 A CN110206884 A CN 110206884A CN 201910494563 A CN201910494563 A CN 201910494563A CN 110206884 A CN110206884 A CN 110206884A
- Authority
- CN
- China
- Prior art keywords
- ring
- mechanically
- main shaft
- axle sleeve
- sealing apparatus
- 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.)
- Pending
Links
- 238000007789 sealing Methods 0.000 title claims abstract description 45
- 230000005540 biological transmission Effects 0.000 claims abstract description 31
- 239000002184 metal Substances 0.000 claims abstract description 21
- 229910052751 metal Inorganic materials 0.000 claims abstract description 21
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 14
- 229910052802 copper Inorganic materials 0.000 claims description 14
- 239000010949 copper Substances 0.000 claims description 14
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 claims 1
- 239000010931 gold Substances 0.000 claims 1
- 229910052737 gold Inorganic materials 0.000 claims 1
- 238000009434 installation Methods 0.000 abstract description 6
- 238000005299 abrasion Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 210000004907 gland Anatomy 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 230000003068 static effect Effects 0.000 description 2
- 210000003850 cellular structure Anatomy 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C33/00—Parts of bearings; Special methods for making bearings or parts thereof
- F16C33/02—Parts of sliding-contact bearings
- F16C33/04—Brasses; Bushes; Linings
- F16C33/06—Sliding surface mainly made of metal
- F16C33/08—Attachment of brasses, bushes or linings to the bearing housing
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D3/00—Yielding couplings, i.e. with means permitting movement between the connected parts during the drive
- F16D3/02—Yielding couplings, i.e. with means permitting movement between the connected parts during the drive adapted to specific functions
- F16D3/06—Yielding couplings, i.e. with means permitting movement between the connected parts during the drive adapted to specific functions specially adapted to allow axial displacement
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16J—PISTONS; CYLINDERS; SEALINGS
- F16J15/00—Sealings
- F16J15/02—Sealings between relatively-stationary surfaces
- F16J15/06—Sealings between relatively-stationary surfaces with solid packing compressed between sealing surfaces
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16J—PISTONS; CYLINDERS; SEALINGS
- F16J3/00—Diaphragms; Bellows; Bellows pistons
- F16J3/04—Bellows
- F16J3/047—Metallic bellows
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16J—PISTONS; CYLINDERS; SEALINGS
- F16J3/00—Diaphragms; Bellows; Bellows pistons
- F16J3/04—Bellows
- F16J3/048—Bellows with guiding or supporting means
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Mechanical Sealing (AREA)
- Sealing Devices (AREA)
Abstract
The invention discloses a kind of mechanically-sealing apparatus being axially movable, it include: main shaft, main shaft upper end two sides symmetrically offer the first keyway, the axle sleeve of the mechanically-sealing apparatus offers the second keyway at corresponding first keyway position, first keyway and the second keyway cooperate, the axle sleeve lower end and the upper end of metal bellows connect, and the lower end of the metal bellows is connect with main shaft.The present invention opens up keyway according to required stroke on main shaft and machine envelope axle sleeve, and when installation connects two keyways, easy for installation and stable drive；Metal bellows is only made of ring under being driven upper ring, being driven and slide, and ring and axle sleeve are driven lower boxing and are connected to main shaft, metal bellows is made to obtain bigger stroke in transmission to snap connection；It by bearing fixed hub, rotate main shaft can again while moving axially in reciprocal fashion.
Description
Technical field
The present invention relates to technical field of mechanical, and in particular to a kind of mechanically-sealing apparatus being axially movable.
Background technique
Mechanical seal is a kind of gland seal device of rotating machinery.For example centrifugal pump, centrifuge, reaction kettle and compressor etc. are set
It is standby.Since transmission shaft is applied in inside and outside equipment, in this way, the medium in equipment is logical there are a circumferential clearance between axis and equipment
It crosses the gap to leak out, it is therefore necessary to have the gland seal device for preventing leakage.
In the application scenarios of mechanical seal, there is the case where needing main shaft to be moved up and down, traditional machine sometimes
Tool is sealed to be sealed usually using metal bellows, i.e., elastic force loading mechanism and auxiliary seal are metallicity line pipe, including dynamic
The structures such as ring, rotating seat, when traditional wavy metal seal of tube, the stroke of main shaft is usually no more than 200mm, to practical application field
It is limited for scape very big.
Summary of the invention
In order to solve the above-mentioned technical problem, the invention proposes a kind of mechanically-sealing apparatus being axially movable, it is suitable for
The sealing of rotary shaft, while it being adapted to pumping for main shaft again.
To achieve the goals above, the technical solution adopted by the present invention are as follows:
A kind of mechanically-sealing apparatus being axially movable, comprising: main shaft, main shaft upper end two sides symmetrically offer first
Keyway, offers the second keyway at the corresponding first keyway position of the axle sleeve of the mechanically-sealing apparatus, first keyway and the
The upper end of the cooperation of two keyways, the axle sleeve lower end and metal bellows connects, and the lower end of the metal bellows is connect with main shaft.
Further, above-mentioned metal bellows includes being driven above ring and being driven lower ring, ring and the lower ring of transmission in the transmission
Between be equipped with slide.
Further, boxing is connected on the main shaft under above-mentioned transmission.
Further, ring is equipped with sealing ring under above-mentioned transmission.
Further, above-mentioned axle sleeve lower end is equipped with card slot, is equipped with a point semi-ring in the transmission, ring passes through in the transmission
Card slot is connect with the axle sleeve.
Further, above-mentioned mechanically-sealing apparatus further includes bearing, and the bearing is connect with the axle sleeve.
Further, above-mentioned axle sleeve tail portion is installed with copper sheathing.
Further, the stroke of above-mentioned main shaft is no more than 500mm.
Further, the size of above-mentioned first keyway and the second keyway is matched with the stroke of the main shaft.
By adopting the above-described technical solution, the beneficial effects of the present invention are:
The mechanically-sealing apparatus being axially movable of the invention is opened on main shaft and machine envelope axle sleeve according to required stroke
If keyway, two keyways are connected when installation, easy for installation and stable drive.
The metal bellows of the mechanically-sealing apparatus being axially movable of the invention is only by being driven upper ring, being driven lower ring and glass
Piece forms, and ring and axle sleeve are driven lower boxing and are connected to main shaft, metal bellows is made to obtain bigger row in transmission to snap connection
Journey.
The mechanically-sealing apparatus being axially movable of the invention allows main shaft along axial reciprocating by bearing fixed hub
It can be rotated again while movement.
It is equipped with sealing ring under the transmission of the mechanically-sealing apparatus being axially movable of the invention, ensure that main shaft lower end
Sealing, static seal is reliable, and the telescopic effect of metal bellows is splendid.
The axle sleeve tail portion of the mechanically-sealing apparatus being axially movable of the invention is equipped with copper sheathing, and copper sheathing has matter soft, wear-resisting
Good characteristics only copper sheathing is ground so not influencing the abrasion of main shaft when producing relative sliding to the main shaft of equipment
Damage when copper sheathing is worn to a certain extent, replaces copper sheathing, maintenance cost substantially reduces, while can also rise to a certain extent
Sealing function.
Detailed description of the invention
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technical description to be briefly described.
Fig. 1 is the mechanically-sealing apparatus structural schematic diagram disclosed by the embodiments of the present invention being axially movable；
Number and corresponding component title represented by letter in figure:
1, main shaft；2, axle sleeve；3, metal bellows；4, ring in transmission；5, it is driven lower ring；6, slide；7, sealing ring；8, copper
Set.
Specific embodiment
With reference to the accompanying drawing 1, detailed description of the preferred embodiments of the present invention.
A kind of mechanically-sealing apparatus being axially movable, comprising: main shaft 1, the 1 upper end two sides of main shaft symmetrically offer
One keyway, offers the second keyway at the corresponding first keyway position of the axle sleeve 2 of the mechanically-sealing apparatus, first keyway with
The cooperation of second keyway, 2 lower end of axle sleeve are connect with the upper end of metal bellows 3, the lower end of the metal bellows 3 and main shaft
1 connection.
Further, above-mentioned metal bellows 3 includes being driven upper ring 4 and the lower ring 5 of transmission, ring 4 and transmission in the transmission
Slide 6 is equipped between lower ring 5.
Further, ring 5 is welded on the main shaft 1 under above-mentioned transmission.
Further, ring 5 is equipped with sealing ring 7 under above-mentioned transmission.
Further, above-mentioned 2 lower end of axle sleeve is equipped with card slot, and ring 4, which is equipped with, in the transmission divides semi-ring, ring 4 in the transmission
It is connect by card slot with the axle sleeve 2.
Further, above-mentioned mechanically-sealing apparatus further includes bearing, and the bearing is connect with the axle sleeve 2.
Further, above-mentioned 2 tail portion of axle sleeve is installed with copper sheathing 8.
Further, the stroke of above-mentioned main shaft 1 is no more than 500mm, and specific stroke can be set according to field working conditions.
Further, the size of above-mentioned first keyway and the second keyway is matched with the stroke of the main shaft 1.
By adopting the above-described technical solution, the beneficial effects of the present invention are:
The mechanically-sealing apparatus being axially movable of the invention, according to required stroke on main shaft 1 and machine envelope axle sleeve 2
Open up keyway, when installation connects two keyways, easy for installation and stable drive.
The metal bellows 3 of the mechanically-sealing apparatus being axially movable of the invention is only by being driven upper ring 4, being driven lower ring 5
It is formed with slide 6, ring 4 is driven lower ring 5 and is welded in main shaft 1, obtain metal bellows 3 with axle sleeve 2 to snap connection in transmission
Bigger stroke.
The mechanically-sealing apparatus being axially movable of the invention allows main shaft 1 along axial past by bearing fixed hub 2
It can be rotated again while moving again.
Ring 5 is equipped with sealing ring 7 under the transmission of the mechanically-sealing apparatus being axially movable of the invention, ensure that under main shaft 1
The sealing at end, static seal is reliable, and the telescopic effect of metal bellows 3 is splendid.
2 both ends of axle sleeve of the mechanically-sealing apparatus being axially movable of the invention are installed with copper sheathing 8, and copper sheathing 8 has matter
Soft, wear-resisting good characteristics, so not influencing the abrasion of main shaft 1 when producing relative sliding to the main shaft 1 of equipment, only
Copper sheathing 8 is worn, when copper sheathing 8 is worn to a certain extent, replaces copper sheathing 8, maintenance cost substantially reduces, while can also rise
Sealing function to a certain extent.
Above-described is only the preferred embodiment of a kind of optical reflection film and photovoltaic cell component disclosed in this invention,
It should be pointed out that for those of ordinary skill in the art, without departing from the concept of the premise of the invention, can also do
Several modifications and improvements out, these are all within the scope of protection of the present invention.
Claims (9)
1. a kind of mechanically-sealing apparatus being axially movable characterized by comprising main shaft, main shaft upper end two sides are symmetrical
It offers the first keyway, offers the second keyway at the corresponding first keyway position of the axle sleeve of the mechanically-sealing apparatus, described the
One keyway and the second keyway cooperate, and the axle sleeve lower end is connected by the upper end of axle sleeve transmission ring and metal bellows, the gold
The lower end for belonging to bellows is connect with main shaft and axle sleeve transmission ring.
2. the mechanically-sealing apparatus according to claim 1 being axially movable, which is characterized in that the metal bellows packet
It includes and is driven upper ring and is driven lower ring, be equipped with slide between ring and the lower ring of transmission in the transmission.
3. the mechanically-sealing apparatus according to claim 2 being axially movable, which is characterized in that boxing connects under the transmission
In on the main shaft, ring and axle sleeve transmission ring are bolted under the transmission.
4. the mechanically-sealing apparatus according to claim 3 being axially movable, which is characterized in that ring and axis under the transmission
It covers and is equipped with sealing ring between transmission ring.
5. the mechanically-sealing apparatus according to claim 2 being axially movable, which is characterized in that the axle sleeve lower end is equipped with
Card slot, interior be equipped with of the card slot divides semi-ring, described that semi-ring is divided to connect by axle sleeve transmission ring with ring in the transmission.
6. the mechanically-sealing apparatus according to claim 1 being axially movable, which is characterized in that the mechanically-sealing apparatus
It further include bearing, the bearing is connect with the axle sleeve.
7. the mechanically-sealing apparatus according to claim 6 being axially movable, which is characterized in that inlay at the axle sleeve both ends
Equipped with copper sheathing.
8. the mechanically-sealing apparatus according to claim 1 or 2 being axially movable, which is characterized in that the row of the main shaft
Journey is no more than 500mm.
9. the mechanically-sealing apparatus according to claim 8 being axially movable, which is characterized in that first keyway and
The size of two keyways is matched with the stroke of the main shaft.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910494563.3A CN110206884A (en) | 2019-06-06 | 2019-06-06 | The mechanically-sealing apparatus being axially movable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910494563.3A CN110206884A (en) | 2019-06-06 | 2019-06-06 | The mechanically-sealing apparatus being axially movable |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110206884A true CN110206884A (en) | 2019-09-06 |
Family
ID=67791518
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910494563.3A Pending CN110206884A (en) | 2019-06-06 | 2019-06-06 | The mechanically-sealing apparatus being axially movable |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110206884A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102937187A (en) * | 2012-10-30 | 2013-02-20 | 中国核电工程有限公司 | Sealed steel wire rope drive system |
| CN103244688A (en) * | 2012-02-07 | 2013-08-14 | 上海天示机械零部件制造有限公司 | Mechanical sealing device for wide-range axial length elastic compensation |
| CN104061329A (en) * | 2014-06-12 | 2014-09-24 | 上海创异流体机械有限公司 | Double-deck mechanical seal device used for stirrer |
| CN203906801U (en) * | 2014-05-09 | 2014-10-29 | 宁波东联密封件有限公司 | Light mechanical sealing device for pump |
| CN104696516A (en) * | 2013-12-04 | 2015-06-10 | 丹东波纹管密封有限公司 | Shaft sleeve-compensable packaging mechanical seal |
| CN210371974U (en) * | 2019-06-06 | 2020-04-21 | 密友集团有限公司 | Mechanical sealing device capable of moving axially |
-
2019
- 2019-06-06 CN CN201910494563.3A patent/CN110206884A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103244688A (en) * | 2012-02-07 | 2013-08-14 | 上海天示机械零部件制造有限公司 | Mechanical sealing device for wide-range axial length elastic compensation |
| CN102937187A (en) * | 2012-10-30 | 2013-02-20 | 中国核电工程有限公司 | Sealed steel wire rope drive system |
| CN104696516A (en) * | 2013-12-04 | 2015-06-10 | 丹东波纹管密封有限公司 | Shaft sleeve-compensable packaging mechanical seal |
| CN203906801U (en) * | 2014-05-09 | 2014-10-29 | 宁波东联密封件有限公司 | Light mechanical sealing device for pump |
| CN104061329A (en) * | 2014-06-12 | 2014-09-24 | 上海创异流体机械有限公司 | Double-deck mechanical seal device used for stirrer |
| CN210371974U (en) * | 2019-06-06 | 2020-04-21 | 密友集团有限公司 | Mechanical sealing device capable of moving axially |
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| PB01 | Publication | ||
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| SE01 | Entry into force of request for substantive examination |