CN208221595U - A kind of external-mounted structure machine envelope convenient for heat dissipation - Google Patents
A kind of external-mounted structure machine envelope convenient for heat dissipation Download PDFInfo
- Publication number
- CN208221595U CN208221595U CN201820749374.7U CN201820749374U CN208221595U CN 208221595 U CN208221595 U CN 208221595U CN 201820749374 U CN201820749374 U CN 201820749374U CN 208221595 U CN208221595 U CN 208221595U
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- CN
- China
- Prior art keywords
- stationary ring
- heat dissipation
- ring
- axle sleeve
- bellows
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- Expired - Fee Related
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- Mechanical Sealing (AREA)
Abstract
The utility model discloses a kind of external-mounted structure machine envelopes convenient for heat dissipation, are related to a kind of sealing structure, including stationary ring, rotating ring, bellows and the axle sleeve being sheathed on the outside of shaft；The stationary ring, rotating ring and bellows are sequentially connected, and the inner peripheral surface of stationary ring and rotating ring is arranged with the outer wall interval of shaft；The inner peripheral surface of the axle sleeve is bonded with the outer wall of shaft, and the outer peripheral surface of axle sleeve and the inner circumferential face interval of bellows are arranged and form a cavity logical for cooling liquid stream.The utility model can realize the sealing of shaft in condition not very severe working environment, and the defect that the size for overcoming existing mechanical seal structure is big, cooling effect is bad reduces its production cost, has the characteristics that structure is simple, easy for assemble or unload.
Description
Technical field
The utility model relates to a kind of sealing structure, in particular to a kind of external-mounted structure machine convenient for heat dissipation seals.
Background technique
With the rapid development of industry, requirement of the field working conditions to pump be higher and higher, it is desirable that pump can it is safe and stable,
Long-acting work.Wherein, the sealing of shaft is one of key technology, and existing rotating shaft sealing mostly uses mechanical seal structure, should
Mechanical seal structure is connected between the port and shaft of equipment to be sealed, it is therefore prevented that coolant liquid leaks from port.
Common mechanical seal structure is bonded referring to Fig. 1 with stationary ring 2 including being sheathed on the stationary ring 2 in 1 outside of shaft, one end
And it is sheathed on the bellows 4 in 1 outside of shaft, is pressed in the compression ring 8 of the 4 outside other end of bellows.
It with bellows 4 is sealed body in above-mentioned mechanical seal structure, shaft 1 can generate one under normal use environment
Fixed heat, the outer wall that stationary ring 2 fits in shaft 1 limits the end of bellows 4, and the size of stationary ring 2 is usually larger,
So that the heat between bellows 4 and shaft 1 is difficult to be quickly cooled down, be easy to make the operating temperature of mechanical seal structure compared with
It is high.
Utility model content
The purpose of the utility model is to provide a kind of external-mounted structure machine envelopes convenient for heat dissipation, are formed at the middle part of machine envelope
Convenient for the cavity of coolant liquid circulation, the heat dissipation of machine envelope is accelerated.
The above-mentioned technical purpose of the utility model has the technical scheme that
A kind of external-mounted structure machine envelope convenient for heat dissipation, including stationary ring, rotating ring, bellows and the axis being sheathed on the outside of shaft
Set；The stationary ring, rotating ring and bellows are sequentially connected, and the inner peripheral surface of stationary ring and rotating ring is arranged with the outer wall interval of shaft；
The inner peripheral surface of the axle sleeve is bonded with the outer wall of shaft, and the outer peripheral surface of axle sleeve and the inner circumferential face interval of bellows are arranged and form one
A cavity logical for cooling liquid stream.
Using the above scheme, machine be enclosed under normal use environment carry out in use, coolant liquid successively from stationary ring and shaft it
Between interval and rotating ring and shaft between interval enter in cavity, with this to shaft rotate and generate heat carry out and
When it is cooling, relative to the outside that bellows is directly sleeved on to shaft, can effectively accelerate the heat dissipation of bellows and axle sleeve, drop
The operating temperature of low machine envelope provides relatively good working environment for machine envelope；In addition, spaced mode additionally aids machine envelope
Installation and removal, while the setting of stationary ring size can also be reduced, reduce the usage amount of material, reduce its production cost.
Further preferably are as follows: the stationary ring is provided with the convenient for coolant liquid circulation on the inner peripheral surface far from rotating ring side
One guide surface.
Using the above scheme, the first guide surface provides guiding role for coolant liquid, facilitates and accelerates in coolant liquid inflow cavity,
And then realize the fast exchange of the heat between axle sleeve and shaft, have the characteristics that structure is simple, installation and replacement are convenient.
Further preferably are as follows: the stationary ring is enclosed with cushion collar in the side outer edge far from rotating ring.
Using the above scheme, the setting of cushion collar can protect stationary ring far from the outer edge of rotating ring side, reduce
The damage of stationary ring；In addition, cushion collar also can increase the sealing performance between stationary ring and device port to be sealed, coolant liquid edge is reduced
Port a possibility that leaking.
Further preferably are as follows: the rotating ring includes rotating the abutting part of fitting with stationary ring and connecting the interconnecting piece of abutting part,
The width of the abutting part radial direction is less than the width of interconnecting piece radial direction, and interconnecting piece and stationary ring interval are arranged, the bellows
One end is sheathed on the outside of interconnecting piece.
Using the above scheme, the width of abutting part radial direction is less than the width of interconnecting piece radial direction, and interconnecting piece and stationary ring interval
Setting, reduces the fitting area between rotating ring and stationary ring with this, reduces the heat generated between the two by friction, thus
Seal sealing structure to shaft at a suitable temperature.
Further preferably are as follows: the interconnecting piece is provided with convenient for coolant liquid circulation on the side inner peripheral surface far from stationary ring
Second guide surface.
Using the above scheme, the second guide surface can make coolant liquid form a whirlpool in the interval of rotating ring and shaft,
To which the replacement of the convenient coolant liquid being located in cavity has to realize the fast exchange of the heat between axle sleeve and shaft
The characteristics of simple structure and convenient processing.
Further preferably are as follows: the bellows includes between the first positioning region and the first positioning region being sheathed on the outside of rotating ring
Every setting and the second positioning region for being bonded with the axle sleeve far from stationary ring side and it connect the first positioning region and the second positioning region
Buffer part, the buffer part and the shaft room are every setting.
Using the above scheme, the first positioning region is sheathed on the outside of rotating ring, so that between bellows and rotating ring
Gap is located at the outside of rotating ring, reduces a possibility that coolant liquid is oozed out from the gap of the two；Buffer part is in the first positioning region and second
It can bend under the support of positioning region to realize its axial stretching, so that sealing structure is when axial jump occurs for shaft
Still it is able to maintain good leakproofness.
Further preferably are as follows: the outer sheath of the buffer part be equipped with buffer spring, the both ends of buffer spring respectively with it is described
First positioning region and the second positioning region abut.
Using the above scheme, the both ends of buffer spring are abutted with the first positioning region and the second positioning region respectively, to be slow
A possibility that reset for rushing portion provides good restoring force, while can play a protective role to buffer part, reduces buffer part damage.
Further preferably are as follows: the axle sleeve offers mounting groove on the side inner peripheral surface of stationary ring, in the mounting groove
It is provided with sealing ring.
Using the above scheme, sealing ring is set in mounting groove, is sealed to the gap between axle sleeve and shaft, thus
A possibility that coolant liquid is leaked along gap between the two is reduced, to increase the sealing effect of sealing structure.
In conclusion the utility model has the following beneficial effects:
1, the utility model passes through the setting of stationary ring, rotating ring, bellows, axle sleeve, cavity, directly covers relative to by bellows
Set on the outside of shaft, it can effectively accelerate the heat dissipation of bellows and axle sleeve, reduce the operating temperature of mechanical seal structure, be
Mechanical seal structure provides relatively good working environment, while the installation and removal for facilitating machine to seal, and reduces setting for stationary ring size
It sets, reduces its production cost；
2, the utility model passes through the setting of the first guide surface, the second guide surface, facilitates the quick circulation of coolant liquid, thus
The cooling for accelerating sealing structure, has the characteristics that structure is simple, installation and replacement are convenient；
3, the utility model passes through the setting of the first positioning region, the second positioning region, buffer part, spring, so that sealing structure
Good leakproofness is still able to maintain when axial jump occurs for shaft.
Detailed description of the invention
Fig. 1 is the schematic diagram of existing mechanical seal structure；
Fig. 2 is the structural schematic diagram of the utility model；
Fig. 3 is the structural schematic diagram of the utility model, and it is identical as Fig. 2, and for convenience of label, component is indicated.
In figure, 1, shaft；2, stationary ring；3, rotating ring；4, bellows；5, axle sleeve；6, cavity；7, buffer spring；8, compression ring；
21, the first guide surface；22, cushion collar；221, bulge loop；31, abutting part；32, interconnecting piece；321, the second guide surface；41, first is fixed
Position portion；411, bound edge is abutted；42, the second positioning region；421, drive plate；43, buffer part；51, sealing；511, mounting groove；
512, sealing ring；52, limiting section；521, mounting hole.
Specific embodiment
The utility model is described in further detail below in conjunction with attached drawing.
A kind of external-mounted structure machine envelope convenient for heat dissipation, referring to fig. 2, stationary ring 2, rotating ring including being sheathed on 1 outside of shaft
3, bellows 4 and axle sleeve 5.
Wherein, stationary ring 2, rotating ring 3 and bellows 4 are sequentially connected, and the inner peripheral surface of stationary ring 2 and rotating ring 3 is outer with shaft 1
The setting of wall interval；The inner peripheral surface of axle sleeve 5 is bonded with the outer wall of shaft 1, the outer peripheral surface of axle sleeve 5 and the inner circumferential face interval of bellows 4
It is arranged and forms a cavity 6 logical for cooling liquid stream.
The first guide surface 21 that stationary ring 2 is provided with convenient for coolant liquid circulation on the inner peripheral surface far from rotating ring (3) side, the
One guide surface 21 is obliquely installed, and its side opening far from rotating ring 3 is greater than the side opening close to rotating ring 3.Stationary ring 2 is separate
The side outer edge of rotating ring 3 is also enclosed with a cushion collar 22.A part of cushion collar 22 is bonded with the outer peripheral surface of stationary ring 2, and
There are two the bulge loops 221 of spaced section semicircular in shape for face protrusion on the outside；Another part and stationary ring 2 of cushion collar 22
It is bonded far from 3 one side end face of rotating ring, the abrasion of stationary ring 2 is reduced with this.
Rotating ring 3 includes the abutting part 31 being bonded with the rotation of stationary ring 2 and the interconnecting piece 32 for connecting abutting part 31, and abutting part 31 exists
Radial width is less than the radial width of interconnecting piece 32, and interconnecting piece 32 and the interval of stationary ring 2 are arranged, so that it is in rank that rotating ring 3 is whole
Scalariform.The second guide surface 321 that interconnecting piece 32 is provided with convenient for coolant liquid circulation on the side inner peripheral surface far from stationary ring 2, the
Two guide surfaces 321 are equally obliquely installed, and its side opening far from stationary ring 2 is greater than the side opening close to stationary ring 2, thus side
Just coolant liquid forms whirlpool in the interval of rotating ring 3 and shaft 1 to accelerate the circulation of coolant liquid.
Referring to figs. 2 and 3, axle sleeve 5 includes sequentially connected sealing 51 and limiting section 52.Sealing 51 is close to stationary ring
A mounting groove 511 is offered on 2 side inner peripheral surface, and a sealing ring 512 is provided in mounting groove 511, is prevented with this cold
But liquid is flowed out along the gap between axle sleeve 5 and shaft 1.A mounting hole 521 is radially offered on limiting section 52, screw is worn
To realize being fixedly connected for axle sleeve 5 and shaft 1 in mounting hole 521.
Bellows 4 is including being sheathed on first positioning region 41 in 3 interconnecting piece of rotating ring, 32 outside, setting with the first positioning region 41 interval
The buffer part 43 of the second positioning region 42 and connection the first positioning region 41 and the second positioning region 42 set.Wherein, the first positioning region
It is enclosed at the outer ledge of 41 the second positioning regions 42 of direction and abuts bound edge 411.The inner peripheral surface of second positioning region 42 and axle sleeve 5
The outer peripheral surface of sealing 51 is bonded, the limiting section 52 of the second positioning region 42 side end face far from the first positioning region 41 and axle sleeve 5
Fitting.Second positioning region 42 is towards being enclosed with a drive plate 421, and drive plate 421 at the outer ledge of the first positioning region 41
A part fixation be connected on the outer peripheral surface of the second positioning region 42, another part of drive plate 421 is overhung at buffer part 43
Outside.
Buffer part 43 is connected to the first positioning region 41 and the second positioning region 42 in the side close to sealing 51, inner circumferential surface
It is arranged with the periphery face interval of sealing 51.The outer sheath of buffer part 43 is equipped with a buffer spring 7, the both ends of buffer spring 7
The drive plate 421 for abutting bound edge 411 and the second positioning region 42 with the first positioning region 41 abuts respectively, and drive plate 421 overhangs
Partially protrude into the inside of buffer spring 7, provide good restoring force as buffer part 43.
Machine is enclosed in use, coolant liquid enters the interval between stationary ring 2 and shaft 1, subsequent edge along the first guide surface 21
The outer wall circumferential flow of shaft 1, under the action of the second guide surface 321, interval of the coolant liquid between rotating ring 3 and shaft 1
Whirlpool is formed, and then new coolant liquid enters in cavity 6, original coolant liquid is carried over cavity 6, rotates with this to shaft 1
And the heat generated is cooled down in time, relative to the outside that bellows 4 is directly sleeved on to shaft 1, can effectively accelerate wave
The heat dissipation of line pipe 4 and axle sleeve 5 reduces the operating temperature of mechanical seal structure.
This specific embodiment is only the explanation to the utility model, is not limitations of the present invention, ability
Field technique personnel can according to need the modification that not creative contribution is made to the present embodiment after reading this specification, but
As long as within the protection scope of the present utility model all by the protection of Patent Law.
Claims (8)
1. a kind of external-mounted structure machine convenient for heat dissipation seals, which is characterized in that including be sheathed on stationary ring (2) on the outside of shaft (1),
Rotating ring (3), bellows (4) and axle sleeve (5)；The stationary ring (2), rotating ring (3) and bellows (4) are sequentially connected, and stationary ring (2) and
The inner peripheral surface of rotating ring (3) is arranged with the outer wall interval of shaft (1)；The inner peripheral surface of the axle sleeve (5) and the outer wall of shaft (1) paste
It closes, the outer peripheral surface of axle sleeve (5) and the inner circumferential face interval of bellows (4) are arranged and form a cavity (6) logical for cooling liquid stream.
2. a kind of external-mounted structure machine convenient for heat dissipation according to claim 1 seals, which is characterized in that the stationary ring (2)
The first guide surface (21) convenient for coolant liquid circulation is provided on the inner peripheral surface far from rotating ring (3) side.
3. a kind of external-mounted structure machine convenient for heat dissipation according to claim 2 seals, which is characterized in that the stationary ring (2)
Cushion collar (22) are enclosed in the side outer edge far from rotating ring (3).
4. a kind of external-mounted structure machine convenient for heat dissipation according to claim 1 seals, which is characterized in that the rotating ring (3)
Including the abutting part (31) being bonded with stationary ring (2) rotation and the interconnecting piece (32) for connecting abutting part (31), the abutting part (31)
Radial width is less than the width of interconnecting piece (32) radial direction, and interconnecting piece (32) and stationary ring (2) interval are arranged, the bellows
(4) one end is sheathed on the outside of interconnecting piece (32).
5. a kind of external-mounted structure machine convenient for heat dissipation according to claim 4 seals, which is characterized in that the interconnecting piece
(32) the second guide surface (321) convenient for coolant liquid circulation is provided on the side inner peripheral surface far from stationary ring (2).
6. a kind of external-mounted structure machine convenient for heat dissipation according to claim 1 seals, which is characterized in that the bellows
(4) include be sheathed on the first positioning region (41) on the outside of rotating ring (3), with the setting of the first positioning region (41) interval and with the axle sleeve
(5) the second positioning region (42) and connection the first positioning region (41) and the second positioning region (42) far from the fitting of stationary ring (2) side
Buffer part (43), the buffer part (43) and the axle sleeve (5) interval be arranged.
7. a kind of external-mounted structure machine convenient for heat dissipation according to claim 6 seals, which is characterized in that the buffer part
(43) outer sheath is equipped with buffer spring (7), and the both ends of buffer spring (7) are fixed with first positioning region (41) and second respectively
Position portion (42) abuts.
8. a kind of external-mounted structure machine convenient for heat dissipation according to claim 1 seals, which is characterized in that the axle sleeve (5)
It is offered mounting groove (511) on the side inner peripheral surface of stationary ring (2), is provided with sealing ring in the mounting groove (511)
(512)。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820749374.7U CN208221595U (en) | 2018-05-19 | 2018-05-19 | A kind of external-mounted structure machine envelope convenient for heat dissipation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820749374.7U CN208221595U (en) | 2018-05-19 | 2018-05-19 | A kind of external-mounted structure machine envelope convenient for heat dissipation |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208221595U true CN208221595U (en) | 2018-12-11 |
Family
ID=64508859
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820749374.7U Expired - Fee Related CN208221595U (en) | 2018-05-19 | 2018-05-19 | A kind of external-mounted structure machine envelope convenient for heat dissipation |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208221595U (en) |
-
2018
- 2018-05-19 CN CN201820749374.7U patent/CN208221595U/en not_active Expired - Fee Related
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20181211 Termination date: 20210519 |