CN104696516A - Shaft sleeve-compensable packaging mechanical seal - Google Patents
Shaft sleeve-compensable packaging mechanical seal Download PDFInfo
- Publication number
- CN104696516A CN104696516A CN201310648216.4A CN201310648216A CN104696516A CN 104696516 A CN104696516 A CN 104696516A CN 201310648216 A CN201310648216 A CN 201310648216A CN 104696516 A CN104696516 A CN 104696516A
- Authority
- CN
- China
- Prior art keywords
- axle sleeve
- gland
- bearing
- sleeve
- shaft sleeve
- 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.)
- Granted
Links
Classifications
-
- 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
Abstract
The invention belongs to the technical field of mechanical seals, in particular to a shaft sleeve-compensable packaging mechanical seal. The shaft sleeve-compensable packaging mechanical seal comprises a transmission sleeve, a corrugated pipe, a dynamic sealing component, a static ring, a gland, a shaft sleeve and a bearing, wherein the transmission sleeve and the shaft sleeve are connected through the corrugated pipe; the transmission sleeve is connected with the rotating shaft; a gap is formed between the shaft sleeve and the rotating shaft; the shaft sleeve and the gland are rotationally connected through the bearing; the dynamic sealing component and the static ring bonded with each other are arranged between the gland and the shaft sleeve; the static ring is connected with the gland; and the dynamic sealing component is connected with the shaft sleeve, and is positioned at the end part of the gland. The shaft sleeve-compensable packaging mechanical seal and a pump body are synchronously vibrated, so that a friction pair generates no relative displacement, and the actual application effect is better.
Description
Technical field
The invention belongs to technical field of mechanical, specifically a kind of axle sleeve can compensation machine for the assembly of unit load tool sealing.
Background technique
At present, mechanical seal for pump has replaced packing_seal and has been used widely.Mechanical seal to the processing of pump and service condition higher, whether pump operation is steadily related to the stability in use of sealing.In practical application, often run into the situation that pump operationally produces larger vibration, pump is because installation foundation is insecure or the wearing and tearing of pump inner bearing, during operation, the relative pump housing of running shaft is beated, the radial beat eccentricity of mechanical sealing friction pairs exceeds standard-required, sealing runs and occurs that trace uninterruptedly leaks, the normal use of impact sealing.This type of phenomenon simply changes seal style and can not deal with problems.
Summary of the invention
For the problems referred to above, a kind of axle sleeve is the object of the present invention is to provide to seal by compensation machine for the assembly of unit load tool.The Vibration Synchronization of this mechanical seal and the pump housing, ensure that friction pair does not produce relative displacement, practical application effect is better.
To achieve these goals, the present invention is by the following technical solutions:
A kind of axle sleeve can seal by compensation machine for the assembly of unit load tool, comprise drive sleeve, bellows, dynamic sealing assembly, stationary ring, gland, axle sleeve and bearing, wherein drive sleeve is connected by bellows with axle sleeve, described drive sleeve is connected with running shaft, leave gap between described axle sleeve and running shaft, described axle sleeve and gland are rotationally connected by bearing, are provided with dynamic sealing assembly 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 located by bearing.
0 RunddichtringO is equipped with between described stationary ring and gland, between dynamic sealing assembly and axle sleeve and between drive sleeve and running shaft.Described dynamic sealing assembly and stationary ring are by bearing determination relative position, and described bearing is deep groove ball bearing.The pressing plate axial limiting of end by being connected with gland of described bearing.
The two ends of described bellows are welded with drive sleeve and axle sleeve respectively.Described bellows is metal bellows.
Advantage of the present invention and good effect are:
1. the present invention is applicable to vibrate larger centrifugal pump.
2. good sealing effect of the present invention, long service life.
3. the present invention changes simply, reduces workload and cost.
4. the Vibration Synchronization of mechanical seal of the present invention and the pump housing, ensure that friction pair does not produce relative displacement, practical application effect is better.
5. mechanical seal, bearing and welded metal bellow combine by the present invention, compact structure, convenient disassembly, play mechanical seal superior function to greatest extent, use reliable and stable, solve the sealing problem of this type of pump.
6. the moment of torsion transmission of axle sleeve is separated solution with both location by the present invention, axle sleeve is divided into two-part, centre connects with welded metal bellow, bellows plays sealing, vibration damping and transmitting torque effect, location is completed by the bearing be arranged in gland, rationally solves this type of pump owing to vibrating the leakage problem caused.
7. mechanical seal is arranged on axle sleeve and gland by the present invention, and axle sleeve and gland are located by bearing, and inner hole of shaft sleeve and pump shaft have comparatively wide arc gap, and when producing vibration, the two is not interfered.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention.
Wherein: 1 is plain cushion, 2 is drive sleeve, and 3 is axle sleeve 0 shape seal ring, and 4 is bellows, and 5 is dynamic sealing assembly, 6 is stationary ring, and 7 be stationary ring 0 shape seal ring 7,8 is gland 0 shape seal ring, and 9 is gland, and 10 is axle sleeve, 11 is bearing, and 12 is jump ring, and 13 is pressing plate, and 14 is Cock screw.
Embodiment
Below in conjunction with accompanying drawing, the present invention is further described.
As shown in Figure 1, the present invention includes drive sleeve 2, bellows 4, dynamic sealing assembly 5, stationary ring 6, gland 9, axle sleeve 10 and bearing 11, wherein the two ends of bellows 4 are welded with drive sleeve 2 and axle sleeve 10 respectively, described drive sleeve 2 is connected with running shaft, the endoporus of described axle sleeve 10 is greater than running shaft, do not contact with running shaft, namely leave gap between axle sleeve 10 and running shaft.Described axle sleeve 10 is rotationally connected by bearing with gland 9, and the end of described bearing is by pressing plate 13 axial limiting, and described pressing plate 13 is connected with gland 9 by Cock screw 14, and Cock screw 14 is interior hexagon concave-end locking screw.Be provided with dynamic sealing assembly 5 bonded to each other and stationary ring 6 between described gland 9 and axle sleeve 10, described stationary ring 6 is connected with gland 9, and described dynamic sealing assembly 5 is connected with axle sleeve 10 and is located by bearing 11, and described bearing 11 is deep groove ball bearing.Be provided with stationary ring 0 RunddichtringO 7 between described stationary ring 6 and gland 9, between dynamic sealing assembly 5 and axle sleeve 10, be provided with rotating ring 0 RunddichtringO, between drive sleeve 2 and running shaft, be equipped with axle sleeve 0 RunddichtringO 3.Described dynamic sealing assembly 5 is prior art, adopts spring type mechanical sealing.
Working principle of the present invention is:
The present invention is by reducing the pump housing vibration relative displacement raw to kinematics and static friction by-product, realizing mechanical seal steady running.A transmitting torque is divided into two bodies with the axle sleeve of positioning action and adopts welding manner to be connected by metal bellows 4, bellows 4 plays sealing, vibration damping and transmitting torque effect.Axle sleeve 10 is installed seal rotary assembly position endoporus and is strengthened, and contact with pump shaft, and to be axle sleeve 10 by bearing 11 be connected with gland 9 locates for this section of pump shaft, seals installment work and highly also determined by bearing 11.Static friction pair is arranged on gland 9, and pump shaft is regulated by the metal bellows 4 welded owing to vibrating the displacement produced with housing.During pump operation, seal rotary assembly and stationary ring and pump housing synchronous shift, kinematics and static friction pair does not have relative displacement, thus realizes sealing steady running.
Erection sequence of the present invention is: install the sealing of collection dress, fastening gland and sleeve nut, get final product running device.When the present invention runs, pump shaft vibration is effectively absorbed by bellows 4, and hull vibration is synchronously passed to mechanical seal by bearing 11, although there is vibration, kinematics and static friction pair is synchronous, less to the normal influence on system operation of sealing.
Claims (6)
1. an axle sleeve can seal by compensation machine for the assembly of unit load tool, it is characterized in that: comprise drive sleeve (2), bellows (4), dynamic sealing assembly (5), stationary ring (6), gland (9), axle sleeve (10) and bearing (11), wherein drive sleeve (2) is connected by bellows (4) with axle sleeve (10), described drive sleeve (2) is connected with running shaft, gap is left between described axle sleeve (10) and running shaft, described axle sleeve (10) and gland (9) are rotationally connected by bearing (11), dynamic sealing assembly (5) and stationary ring (6) 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 by bearing (11) location.
2. can seal by compensation machine for the assembly of unit load tool by axle sleeve according to claim 1, it is characterized in that: between described stationary ring (6) and gland (9), between dynamic sealing assembly (5) and axle sleeve (10) and between drive sleeve (2) and running shaft, be equipped with 0 RunddichtringO.
3. can seal by compensation machine for the assembly of unit load tool by axle sleeve according to claim 1, it is characterized in that: described dynamic sealing assembly (5) and stationary ring (6) determine relative position by bearing (11), and described bearing (11) is deep groove ball bearing.
4. can sealing by compensation machine for the assembly of unit load tool by axle sleeve according to claim 3, it is characterized in that: pressing plate (13) axial limiting of end by being connected with gland (9) of described bearing.
5. can seal by compensation machine for the assembly of unit load tool by axle sleeve according to claim 1, it is characterized in that: the two ends of described bellows (4) are welded with drive sleeve (2) and axle sleeve (10) respectively.
6. can seal by compensation machine for the assembly of unit load tool by the axle sleeve described in claim 1 or 5, it is characterized in that: described bellows (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 true CN104696516A (en) | 2015-06-10 |
| CN104696516B 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) |
Cited By (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 |
| CN111396565A (en) * | 2019-12-11 | 2020-07-10 | 杭州大和热磁电子有限公司 | Magnetic fluid sealing device with guide mechanism |
Citations (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
Patent Citations (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 |
Cited By (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 |
| CN111396565A (en) * | 2019-12-11 | 2020-07-10 | 杭州大和热磁电子有限公司 | Magnetic fluid sealing device with guide mechanism |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104696516B (en) | 2017-01-04 |
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| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
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