CN104696516B - A kind of axle sleeve can compensate for formula packaging mechanical seal - Google Patents
A kind of axle sleeve can compensate for formula packaging mechanical seal Download PDFInfo
- Publication number
- CN104696516B CN104696516B CN201310648216.4A CN201310648216A CN104696516B CN 104696516 B CN104696516 B CN 104696516B CN 201310648216 A CN201310648216 A CN 201310648216A CN 104696516 B CN104696516 B CN 104696516B
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- CN
- China
- Prior art keywords
- axle sleeve
- gland
- bearing
- mechanical seal
- stationary ring
- 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.)
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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
- F16J—PISTONS; CYLINDERS; SEALINGS
- F16J15/00—Sealings
- F16J15/50—Sealings between relatively-movable members, by means of a sealing without relatively-moving surfaces, e.g. fluid-tight sealings for transmitting motion through a wall
- F16J15/52—Sealings between relatively-movable members, by means of a sealing without relatively-moving surfaces, e.g. fluid-tight sealings for transmitting motion through a wall by means of sealing bellows or diaphragms
-
- 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
- F16J15/16—Sealings between relatively-moving surfaces
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Sealing Devices (AREA)
- Mechanical Sealing (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The invention belongs to technical field of mechanical, specifically a kind of axle sleeve can compensate for formula packaging mechanical seal.Including drive sleeve, corrugated tube, dynamic sealing assembly, stationary ring, gland, axle sleeve and bearing, wherein drive sleeve and axle sleeve are connected by corrugated tube, described drive sleeve is connected with rotary shaft, gap is left between described axle sleeve and rotary shaft, described axle sleeve is rotationally connected by bearing with gland, being provided with dynamic sealing assembly bonded to each other and stationary ring between described gland and axle sleeve, described stationary ring is connected with gland, and described dynamic sealing assembly is connected with axle sleeve and is positioned at the end of gland.The present invention and the Vibration Synchronization of the pump housing, it is ensured that friction pair does not produce relative displacement, and practical application effect is preferable.
Description
Technical field
The invention belongs to technical field of mechanical, specifically a kind of axle sleeve can compensate for formula packaging machinery
Seal.
Background technology
At present, mechanical seal for pump has replaced packing_seal and has been used widely.Mechanical seal to the processing of pump and
Service requirement is higher, and pump operation is the most steadily related to the stability in use sealed.In actual application, often meet
Operationally produce the situation of larger vibration to pump, pump due to installation foundation is insecure or pump inner bearing abrasion,
During operation, rotary shaft is beated relative to the pump housing, and the radial beat eccentricity of mechanical sealing friction pairs exceeds standard-required,
Seal operation and occur that trace uninterruptedly leaks, the normal use that impact seals.This type of phenomenon simply changes sealing
Pattern can not solve problem.
Summary of the invention
For the problems referred to above, it is an object of the invention to provide a kind of axle sleeve and can compensate for formula packaging mechanical seal.
This mechanical seal and the Vibration Synchronization of the pump housing, it is ensured that friction pair does not produce relative displacement, and practical application effect is preferable.
To achieve these goals, the present invention is by the following technical solutions:
A kind of axle sleeve can compensate for formula packaging mechanical seal, including drive sleeve, corrugated tube, dynamic sealing assembly,
Stationary ring, gland, axle sleeve and bearing, wherein drive sleeve and axle sleeve are connected by corrugated tube, described drive sleeve
Being connected with rotary shaft, leave gap between described axle sleeve and rotary shaft, described axle sleeve and gland pass through bearing
Being rotationally connected, be provided with dynamic sealing assembly and stationary ring between described gland and axle sleeve, described stationary ring is with gland even
Connecing, described dynamic sealing assembly is connected with axle sleeve and is positioned by bearing.
Between described stationary ring and gland, between dynamic sealing assembly and axle sleeve and between drive sleeve and rotary shaft all
It is provided with 0 RunddichtringO.Described dynamic sealing assembly determines relative position, described bearing with stationary ring by bearing
For deep groove ball bearing.The end of described bearing is by the pressing plate axial limiting being connected with gland.
The two ends of described corrugated tube are welded with drive sleeve and axle sleeve respectively.Described corrugated tube is metal bellows.
Advantages of the present invention and good effect be:
1. the present invention is applicable to vibrate bigger centrifugal pump.
Good sealing effect the most of the present invention, service life is long.
3. the present invention changes simply, reduces workload and cost.
Mechanical seal the most of the present invention and the Vibration Synchronization of the pump housing, it is ensured that friction pair does not produce relative displacement, actual
Application effect is preferable.
5. mechanical seal, bearing and welded metal bellow are combined by the present invention, compact conformation, dismounting
Convenient, play mechanical seal superior function to greatest extent, use reliable and stable, solve the close of this type of pump
Envelope problem.
6. the moment of torsion of axle sleeve is transmitted by the present invention and the two separation of location solves, and axle sleeve is divided into two parts,
Middle connecting with welded metal bellow, corrugated tube plays sealings, vibration damping and transmission moment of torsion effect, location by
The bearing being arranged in gland completes, and rationally solves the leakage problem that this type of pump causes due to vibration.
7. mechanical seal is arranged on axle sleeve and gland by the present invention, and axle sleeve and gland are positioned by bearing, axle
Set endoporus has larger gap with pump shaft, and when producing vibration, the two is not interfered.
Accompanying drawing explanation
Fig. 1 is the structural representation of the present invention.
Wherein: 1 is plain cushion, 2 is drive sleeve, and 3 is axle sleeve 0 shape sealing ring, and 4 is corrugated tube, and 5 are
Black box, 6 is stationary ring, 7 be stationary ring 0 shape sealing ring 7,8 be gland 0 shape sealing ring, 9 is gland,
10 is axle sleeve, and 11 is bearing, and 12 is jump ring, and 13 is pressing plate, and 14 is holding screw.
Detailed description of the invention
Below in conjunction with the accompanying drawings the present invention is further described.
As it is shown in figure 1, the present invention include drive sleeve 2, corrugated tube 4, dynamic sealing assembly 5, stationary ring 6,
Gland 9, axle sleeve 10 and bearing 11, wherein the two ends of corrugated tube 4 respectively with drive sleeve 2 and axle sleeve 10
Welding, described drive sleeve 2 is connected with rotary shaft, and the endoporus of described axle sleeve 10 is more than rotary shaft, not with rotation
Shaft contacts, i.e. leaves gap between axle sleeve 10 and rotary shaft.Described axle sleeve 10 passes through axle with gland 9
Forwarding and be dynamically connected, pressing plate 13 axial limiting is passed through in the end of described bearing, and described pressing plate 13 passes through tightening
Screw 14 is connected with gland 9, and holding screw 14 is interior hexagon concave-end locking screw.Described gland 9 with
Being provided with dynamic sealing assembly 5 bonded to each other and stationary ring 6 between axle sleeve 10, described stationary ring 6 is with gland 9 even
Connecing, described dynamic sealing assembly 5 is connected with axle sleeve 10 and passes through bearing 11 and positions, and described bearing 11 is
Deep groove ball bearing.Stationary ring 0 RunddichtringO 7, dynamic sealing assembly 5 it is provided with between described stationary ring 6 and gland 9
And it is provided with rotating ring 0 RunddichtringO between axle sleeve 10, between drive sleeve 2 and rotary shaft, is equipped with axle sleeve 0 type
Sealing ring 3.Described dynamic sealing assembly 5 is prior art, uses spring type mechanical sealing.
The operation principle of the present invention is:
The present invention is the relative displacement raw to kinematics and static friction by-product by reducing pump housing vibration, it is achieved machinery
Seal steady running.The axle sleeve playing transmission moment of torsion and positioning action is divided into two bodies and uses welding manner
Being connected by metal bellows 4, corrugated tube 4 plays sealing, vibration damping and transmission moment of torsion effect.Axle sleeve 10 is pacified
Dress seals and rotates the endoporus increasing of assembly portion position, does not contacts with pump shaft, and this section of pump shaft is that axle sleeve 10 passes through bearing
11 are connected location with gland 9, seal installment work and are the most also determined by bearing 11.Static friction pair is arranged on
On gland 9, the displacement that pump shaft produces due to vibration with housing is regulated by the metal bellows 4 welded.Pump
During operation, sealing rotary components and stationary ring and pump housing synchronous shift, kinematics and static friction pair does not has relative displacement,
Thus realize sealing steady running.
Erection sequence of the present invention is: installs packaging and seals, and fastening gland and sleeve nut can operate and set
Standby.When the present invention runs, pump shaft vibration is effectively absorbed by corrugated tube 4, and hull vibration is synchronized by bearing 11
Pass to mechanical seal, although have vibration, but kinematics and static friction pair is to synchronize, properly functioning to sealing
Affect less.
Claims (6)
1. an axle sleeve can compensate for formula packaging mechanical seal, it is characterized in that: include drive sleeve (2), corrugated tube (4), dynamic sealing assembly (5), stationary ring (6), gland (9), axle sleeve (10) and bearing (11), wherein drive sleeve (2) and axle sleeve (10) are connected by corrugated tube (4), described drive sleeve (2) is connected with rotary shaft, gap is left between described axle sleeve (10) and rotary shaft, described axle sleeve (10) is rotationally connected by bearing (11) with gland (9), dynamic sealing assembly (5) and stationary ring (6) it is provided with between described gland (9) and axle sleeve (10), described stationary ring (6) is connected with gland (9), described dynamic sealing assembly (5) is connected with axle sleeve (10), and positioned by bearing (11)；
During pump operation, described corrugated tube (4) is for regulating the displacement that rotary shaft produces due to vibration with the pump housing；Described dynamic sealing assembly (5) and stationary ring (6) and pump housing synchronous shift, thus realize mechanical seal steady running.
2. the axle sleeve as described in claim 1 can compensate for formula packaging mechanical seal, it is characterised in that: it is equipped with O RunddichtringO between described stationary ring (6) and gland (9), between dynamic sealing assembly (5) and axle sleeve (10) and between drive sleeve (2) and rotary shaft.
3. the axle sleeve as described in claim 1 can compensate for formula packaging mechanical seal, it is characterized in that: by bearing (11), described dynamic sealing assembly (5) determines that relative position, described bearing (11) are deep groove ball bearing with stationary ring (6).
4. the axle sleeve as described in claim 3 can compensate for formula packaging mechanical seal, it is characterised in that: the end of described bearing is by pressing plate (13) axial limiting being connected with gland (9).
5. the axle sleeve as described in claim 1 can compensate for formula packaging mechanical seal, it is characterised in that: the two ends of described corrugated tube (4) are welded with drive sleeve (2) and axle sleeve (10) respectively.
6. the axle sleeve as described in claim 1 or 5 can compensate for formula packaging mechanical seal, it is characterised in that: described corrugated tube (4) is metal bellows.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310648216.4A CN104696516B (en) | 2013-12-04 | 2013-12-04 | A kind of axle sleeve can compensate for formula packaging mechanical seal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310648216.4A CN104696516B (en) | 2013-12-04 | 2013-12-04 | A kind of axle sleeve can compensate for formula packaging mechanical seal |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104696516A CN104696516A (en) | 2015-06-10 |
| CN104696516B true CN104696516B (en) | 2017-01-04 |
Family
ID=53343929
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310648216.4A Active CN104696516B (en) | 2013-12-04 | 2013-12-04 | A kind of axle sleeve can compensate for formula packaging mechanical seal |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104696516B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110206884A (en) * | 2019-06-06 | 2019-09-06 | 密友集团有限公司 | The mechanically-sealing apparatus being axially movable |
| CN111396565B (en) * | 2019-12-11 | 2022-07-15 | 杭州大和热磁电子有限公司 | Magnetic fluid sealing device with guide mechanism |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4114904A (en) * | 1977-10-04 | 1978-09-19 | Borg-Warner Corporation | Bellows-type mechanical seal |
| US4691927A (en) * | 1986-12-01 | 1987-09-08 | A. W. Chesterton Company | Temperature-compensating mechanical face seal |
| CN2929367Y (en) * | 2006-06-09 | 2007-08-01 | 金汉植 | Narrow mechanical seal ring |
| CN201062663Y (en) * | 2007-06-20 | 2008-05-21 | 胡滨 | Mechanical seal piece of stirrer with location bearing |
| CN201896780U (en) * | 2010-11-23 | 2011-07-13 | 安徽省天马泵阀集团有限公司 | Mechanical sealing structure of oil slurry pump |
| CN203594786U (en) * | 2013-12-04 | 2014-05-14 | 丹东波纹管密封有限公司 | Complementary type mechanical seal for shaft sleeve packaging |
-
2013
- 2013-12-04 CN CN201310648216.4A patent/CN104696516B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN104696516A (en) | 2015-06-10 |
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| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |