CN208457202U - A kind of simple double mechanical seal - Google Patents
A kind of simple double mechanical seal Download PDFInfo
- Publication number
- CN208457202U CN208457202U CN201821032568.1U CN201821032568U CN208457202U CN 208457202 U CN208457202 U CN 208457202U CN 201821032568 U CN201821032568 U CN 201821032568U CN 208457202 U CN208457202 U CN 208457202U
- Authority
- CN
- China
- Prior art keywords
- axle sleeve
- ring
- sealing ring
- seal
- seal receptacle
- 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
Links
- 238000007789 sealing Methods 0.000 claims abstract description 105
- 238000011010 flushing procedure Methods 0.000 abstract description 8
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 8
- 238000005299 abrasion Methods 0.000 abstract description 3
- 230000000694 effects Effects 0.000 description 3
- 239000012530 fluid Substances 0.000 description 3
- 230000008094 contradictory effect Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000008901 benefit Effects 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
Landscapes
- Mechanical Sealing (AREA)
Abstract
The utility model relates to mechanical seal fields, specifically a kind of simple double mechanical seal, including axle sleeve, the main sealing device of sleeve end is set and axle sleeve middle position is set spring arrangement, axle sleeve is in cirque structure, the first sealing ring and the second sealing ring are equipped in axle sleeve, main sealing device and spring arrangement are set on the outer circle wall of axle sleeve.The VDA shape sealing ring of the utility model holds the sealing formed between axle sleeve to flushing water on axle sleeve tightly, and sealing ring lip and sealing ring section form the primary seal to flushing water, and sealing ring lip, which is in, is compressed axially state to ensure that the performance for following compensation.Such sealing is changed to be compressed axially sealing between sealing ring and sealing ring by the radial seal to rotation existing between traditional outside framework oil seal and axis.The abrasion of axle sleeve is avoided, while axial decrement can also be adjusted by pump shaft, and then improve the service life of mechanical seal.
Description
Technical field
The utility model relates to mechanical seal field, specifically a kind of simple double mechanical seal.
Background technique
Mechanical seal is also known as end face seal, is a kind of device that limitation working fluid is leaked along rotary shaft, usually by rotating
The composition such as ring, stationary ring, elastic element and auxiliary seal ring.When work, two of rotating ring and stationary ring relative rotation are utilized
Coating surface and auxiliary seal realize the function of its sealing, and the abrasion of sealing surface can be compensated automatically by elastic element.
Double mechanical seal lean on perpendicular to rotation axis end face Fluid pressure and compensation mechanism elastic force effect with
And the device for preventing fluid from leaking for being bonded and constituting with respect to sliding is kept under the cooperation of auxiliary seal.In the prior art, double
The structure of end surface mechanical sealing is single, is easy to influence sealing effect during use, and single structure will cause sealing
The transition loss of part influences whole service life.
Utility model content
The purpose of this utility model is to provide a kind of simple double mechanical seals, to solve to mention in above-mentioned background technique
Out the problem of.
The technical solution of the utility model is: including axle sleeve, the main sealing device of sleeve end is arranged in and is arranged in axis
The spring arrangement in middle position is covered, axle sleeve is in cirque structure, is equipped with the first sealing ring and the second sealing ring, primary seal in axle sleeve
Device and spring arrangement are set on the outer circle wall of axle sleeve, main sealing device include third sealing ring, retainer ring, sealing ring,
The right end of axle sleeve is arranged in plain cushion, VDA shape sealing ring, the first seal receptacle and the second seal receptacle, retainer ring, and sealing ring is mounted on axle sleeve
Side that is upper and being located at retainer ring, one end inner sidewall of sealing ring and the first seal receptacle fit closely, and sealing ring is arranged in plain cushion
Left end and contradicting with VDA shape sealing ring connects, and the third sealing ring is arranged between the first seal receptacle and sealing ring, and second is close
In first seal receptacle is wrapped in by envelope seat, the 4th sealing ring, spring dress are equipped between first seal receptacle and the second seal receptacle
It sets including spring, rotating ring, stationary ring and throw-out collar, spring is arranged in the first seal receptacle and is arranged close to VDA shape sealing ring, described to push away
The left end of spring is arranged in ring, and the right end of stationary ring contradicts the left end for being connected to throw-out collar, and one end of rotating ring is fixedly connected with stationary ring, moves
The other end of ring engages with axle sleeve, and the two sides that rotating ring engages with axle sleeve are respectively equipped with the first seal ring of moving ring and the second ring seal
Circle, stationary ring and the first seal receptacle equipped with the first stationary ring sealing ring, the lateral wall of the first stationary ring sealing ring respectively with stationary ring and the
One seal receptacle fits closely.
In one preferred embodiment of the utility model, the position of the right end of the axle sleeve and close first seal receptacle is equipped with circle
Column cap soket head cap screw, the soket head cap screw is through the first seal receptacle and is finally fixedly connected with the second seal receptacle.
In one preferred embodiment of the utility model, the lower half portion of the axle sleeve left end is equipped with locating piece, the positioning
The hexagon socket cap head screw for connecting three is equipped between block and the first seal receptacle and the second seal receptacle.
In one preferred embodiment of the utility model, below the hexagon socket cap head screw and it is located at the left end of axle sleeve also
Equipped with hexagon-headed bolt, the hexagon-headed bolt is fixed-type by the second seal receptacle and axle sleeve.
The utility model provides a kind of simple double mechanical seal herein and has compared with prior art by improving
Following improvement and advantage: VDA shape sealing ring holds the sealing formed between axle sleeve to flushing water on axle sleeve tightly.Sealing ring lip
The primary seal to flushing water is formed with sealing ring section, sealing ring lip, which is in, is compressed axially state to ensure that and follow compensation
Performance.Such sealing is changed to sealing ring and sealing ring by the radial seal to rotation existing between traditional outside framework oil seal and axis
Between be compressed axially sealing.The abrasion of axle sleeve is avoided, while axial decrement can also be adjusted by pump shaft, and then improve
The service life of mechanical seal.
Detailed description of the invention
The utility model is further explained with reference to the accompanying drawings and examples:
Fig. 1 is the cross-sectional view of the utility model
Description of symbols:
First stationary ring sealing ring 2, the first seal ring of moving ring 3, axle sleeve 4, the first sealing ring 5, rotating ring 6, stationary ring 7, first is close
Seal seat 8, throw-out collar 9, spring 10, the 4th sealing ring 11, socket cap screw 12, the second sealing ring 13, retainer ring 14, sealing ring
15, plain cushion 16, VDA shape sealing ring 17, locating piece 18, hexagon socket cap head screw 19,20 second seal receptacle 21 of hexagon-headed bolt,
Second seal ring of moving ring 22, the second sealing ring 23.
Specific embodiment
The utility model is described in detail below in conjunction with attached drawing 1, to the technical side in the utility model embodiment
Case is clearly and completely described, it is clear that and the described embodiments are only a part of the embodiments of the utility model, rather than
Whole embodiments.Based on the embodiments of the present invention, those of ordinary skill in the art are not making creative work
Under the premise of every other embodiment obtained, fall within the protection scope of the utility model.
The utility model by improve a kind of simple double mechanical seal is provided herein, as shown in Figure 1, include axle sleeve 4,
The main sealing device that 4 end of axle sleeve is arranged in and the spring arrangement that 4 middle position of axle sleeve is arranged in, axle sleeve 4 are in cirque structure,
The first sealing ring 5 and the second sealing ring 23 are equipped in axle sleeve 4, main sealing device and spring arrangement are set in the outer circle of axle sleeve 4
On peripheral wall, main sealing device is close including the second sealing ring 13, retainer ring 14, sealing ring 15, plain cushion 16, VDA shape sealing ring 17, first
Seat 8 and the second seal receptacle 21 are sealed, the right end of axle sleeve 4 is arranged in retainer ring 14, and sealing ring 15 is mounted on axle sleeve 4 and is located at retainer ring 14
Side, sealing ring 15 and one end inner sidewall of the first seal receptacle 8 fit closely, plain cushion 16 be arranged in the left end of sealing ring 15 and
It contradicting and connects with VDA shape sealing ring 17, second sealing ring 13 is arranged between the first seal receptacle 8 and sealing ring 15, and second
In first seal receptacle 8 is wrapped in by seal receptacle 21, the 4th sealing ring is equipped between first seal receptacle 8 and the second seal receptacle 21
11, spring arrangement includes spring 10, rotating ring 6, stationary ring 7 and throw-out collar 9, and spring 10 is arranged in the first seal receptacle 8 and close to VDA shape
Sealing ring 17 is arranged, and the left end of spring is arranged in the throw-out collar 9, and the right end of stationary ring 7 contradicts the left end for being connected to throw-out collar 9, rotating ring 6
One end be fixedly connected with stationary ring 7, the other end of rotating ring 6 engages with axle sleeve 4, and the two sides that rotating ring 6 engages with axle sleeve 4 are respectively equipped with
First seal ring of moving ring 3 and the second seal ring of moving ring 22, stationary ring 7 and the first seal receptacle 8 are equipped with the first stationary ring sealing ring 2, this
The lateral wall of one stationary ring sealing ring 2 is fitted closely with stationary ring 7 and the first seal receptacle 8 respectively.
The position of the right end of the axle sleeve 4 and close first seal receptacle 8 is equipped with socket cap screw 12, the interior hexagonal
Screw is through the first seal receptacle 8 and is finally fixedly connected with the second seal receptacle 21, can be real by socket cap screw 12
It is now to the first seal receptacle 8 and finally locked with the fixation of the second seal receptacle 21, the stability of entire secret is improved, sealing is improved
Property.
The lower half portion of 4 left end of axle sleeve is equipped with locating piece 18, and the locating piece 18 and the first seal receptacle 8 and second are close
The hexagon socket cap head screw 19 being equipped with for connecting three is sealed between seat 21；Meet locating piece 18 and the second seal receptacle 21 it
Between fixed operation.
It is additionally provided with hexagon-headed bolt 20 below the hexagon socket cap head screw 19 and positioned at the left end of axle sleeve 4, the hexagonal
Hook bolt 20 is fixed-type by the second seal receptacle 21 and axle sleeve 4, to realize being connected and fixed between the second seal receptacle 21 and the pump housing.
This machinery is sealed in the structure member in use, main body, transmits power to rotating ring 6 by trundle.Pump assembly is logical
It crosses 4 both ends of axle sleeve and clamps axle sleeve 4 and be driven, the first sealing ring 5 and the second sealing ring 23 play close between axle sleeve 4 and axis
Envelope, sealing retainer ring 14 and sealing ring of second sealing ring 13 for external flushing water between sealing ring 15 and the second seal receptacle 21
15 connect with seal receptacle II, play the role of fixing seal ring 15.Sealing ring 15 and VDA shape sealing ring 17 and the second sealing ring 13
The auxiliary seal system being sealed to flushing water is formed, plain cushion 16 prevents the hardness between sealing ring 15 and the second seal receptacle 21
Contact VDA shape sealing ring 17 and sealing ring 15 and the second sealing ring 13 form the auxiliary seal system being sealed to flushing water,
This sealing ring completes the sealing between axle sleeve 4 by being interference fitted locking on axle sleeve 4, and sealing ring is contacted with sealing ring 15
Lip has certain being compressed axially to form the sealing to flushing water, and throw-out collar 9 is mounted on stationary ring 7 and the second seal receptacle 21, spring it
Between, play the role of 7 anti-rotation of stationary ring, cooperate spring, stationary ring 7 follows counterbalance spring and is mounted on throw-out collar 9 and seal receptacle, plays and follow
The effect of compensation sealing.
The foregoing description of the disclosed embodiments can be realized professional and technical personnel in the field or using originally practical new
Type.Various modifications to these embodiments will be readily apparent to those skilled in the art, and determine herein
The General Principle of justice can be realized in other embodiments without departing from the spirit or scope of the present utility model.Cause
This, the present invention will not be limited to the embodiments shown herein, and is to fit to and principles disclosed herein
The widest scope consistent with features of novelty.
Claims (4)
1. a kind of simple double mechanical seal, it is characterised in that: including axle sleeve (4), setting axle sleeve (4) end primary seal
Device and setting are in the spring arrangement in axle sleeve (4) middle position, and axle sleeve (4) is in cirque structure, and it is close to be equipped with first in axle sleeve (4)
Seal (5) and the second sealing ring (13), main sealing device and spring arrangement are set on the outer circle wall of axle sleeve (4), and master is close
Seal apparatus includes the second sealing ring (13), retainer ring (14), sealing ring (15), plain cushion (16), VDA shape sealing ring (17), first close
Seat (8) and the second seal receptacle (21) are sealed, the right end in axle sleeve (4) is arranged in retainer ring (14), and sealing ring (15) is mounted on axle sleeve (4)
And it is located at the side of retainer ring (14), sealing ring (15) and one end inner sidewall of the first seal receptacle (8) fit closely, and plain cushion (16) is set
It sets the left end in sealing ring (15) and is contradicted with VDA shape sealing ring (17) and connected, second sealing ring (13) is arranged first
Between seal receptacle (8) and sealing ring (15), the first seal receptacle (8) is wrapped in interior, first sealing by the second seal receptacle (21)
The 4th sealing ring (11) is equipped between seat (8) and the second seal receptacle (21), spring arrangement includes spring (10), rotating ring (6), stationary ring
(7) it is arranged in the first seal receptacle (8) and close to VDA shape sealing ring (17) with throw-out collar (9), spring (10) setting, the throw-out collar
(9) left end of spring is set, and the right end of stationary ring (7) contradicts the left end for being connected to throw-out collar (9), one end of rotating ring (6) and stationary ring
(7) it is fixedly connected, the other end of rotating ring (6) engages with axle sleeve (4), and the two sides that rotating ring (6) engages with axle sleeve (4) are respectively equipped with
One seal ring of moving ring (3) and the second seal ring of moving ring (22), stationary ring (7) and the first seal receptacle (8) are equipped with the first stationary ring sealing ring
(2), the lateral wall of the first stationary ring sealing ring (2) is fitted closely with stationary ring (7) and the first seal receptacle (8) respectively.
2. simple double mechanical seal according to claim 1, it is characterised in that: the right end of the axle sleeve (4) and lean on
The position of nearly first seal receptacle (8) is equipped with socket cap screw (12), which runs through the first seal receptacle (8) simultaneously
Finally it is fixedly connected with the second seal receptacle (21).
3. simple double mechanical seal according to claim 1, it is characterised in that: the lower half of axle sleeve (4) left end
Part is equipped with locating piece (18), is equipped with and is used between the locating piece (18) and the first seal receptacle (8) and the second seal receptacle (21)
Connect the hexagon socket cap head screw (19) of three.
4. simple double mechanical seal according to claim 3, it is characterised in that: the hexagon socket cap head screw
(19) lower section and it is located at the left end of axle sleeve (4) and is additionally provided with hexagon-headed bolt (20), the hexagon-headed bolt (20) is by the second seal receptacle
(21) fixed-type with axle sleeve (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821032568.1U CN208457202U (en) | 2018-07-02 | 2018-07-02 | A kind of simple double mechanical seal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821032568.1U CN208457202U (en) | 2018-07-02 | 2018-07-02 | A kind of simple double mechanical seal |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208457202U true CN208457202U (en) | 2019-02-01 |
Family
ID=65169404
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821032568.1U Expired - Fee Related CN208457202U (en) | 2018-07-02 | 2018-07-02 | A kind of simple double mechanical seal |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208457202U (en) |
-
2018
- 2018-07-02 CN CN201821032568.1U patent/CN208457202U/en not_active Expired - Fee Related
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105953000B (en) | Middle pressure high-speed joint | |
| CN204201078U (en) | A kind of y-type seal ring | |
| CN2869403Y (en) | Mechanical sealing for pump | |
| CN206145132U (en) | Multiple sealed Y type sealing washer | |
| CN208457202U (en) | A kind of simple double mechanical seal | |
| CN108730225A (en) | A kind of non-contact chemical industry pump seal of modified | |
| CN208457207U (en) | A kind of integrated form both-end mechanical seal | |
| CN205136017U (en) | A self -lubricating double seal structure for lobe pump drive end | |
| CN101718309B (en) | Drum-type gear coupling | |
| CN208764328U (en) | Containerization type | |
| CN205503989U (en) | Hydro -cylinder compensation formula sliding seal structure | |
| CN213206878U (en) | Ball bearing rotary joint | |
| CN210371637U (en) | Cross roller bearing with composite sealing structure | |
| CN204677637U (en) | A kind of universal joint with the double needle roller of nylon spacer | |
| CN209354658U (en) | A kind of novel sealing component | |
| CN201763942U (en) | Air cylinder piston | |
| CN2599329Y (en) | Combined washer oil seal | |
| CN202708073U (en) | Rotary body sealing device and rotary bit of horizontal directed drilling rig | |
| CN218347677U (en) | Double-stroke supercharging cylinder | |
| CN205896495U (en) | High -speed rotary joint of middling pressure | |
| CN208565563U (en) | A kind of anti-dry friction mechanical sealing of Double End | |
| CN201582184U (en) | Combined type shaft seal device of centrifugal pump | |
| CN2921428Y (en) | Improved ectosphere surface ball bearing sealing washer | |
| CN216009274U (en) | Universal joint capable of exhausting gas and having long service life | |
| CN209414624U (en) | A kind of mechanical seal of the outer glue of acid-resisting |
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: 20190201 |