CN104534095A - Mechanical seal for pressure filtering machine with large shaft telescopic amount - Google Patents
Mechanical seal for pressure filtering machine with large shaft telescopic amount Download PDFInfo
- Publication number
- CN104534095A CN104534095A CN201410821970.8A CN201410821970A CN104534095A CN 104534095 A CN104534095 A CN 104534095A CN 201410821970 A CN201410821970 A CN 201410821970A CN 104534095 A CN104534095 A CN 104534095A
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- CN
- China
- Prior art keywords
- mechanical seal
- axle
- sleeve
- bearing
- seal
- 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
- F16J15/16—Sealings between relatively-moving surfaces
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Sealing Of Bearings (AREA)
Abstract
The invention discloses a mechanical seal for a pressure filtering machine with a large shaft telescopic amount. The mechanical seal is installed on a shaft sleeve, the shaft sleeve and a shaft adopt a key transmission mode, and a gap is reserved in a key groove of the shaft sleeve in the axial direction. The mechanical seal has the advantages of being simple in structure, being convenient to load and unload, being good in sealing performance, adopting double-end-surface, balanced type, multi-spring and spring-shared arrangement modes, effectively separating various corrosive or poisonous media, being adaptive to high use pressure, capable of providing uniform loads and good compensation performance, and being high in axial movement resistance. A built-in bearing can reduce influences of axial swing on the seal, the seal is axially positioned, the seal and the shaft adopt a key transmission mode, the axial telescopic change amount is reserved in the key groove of the shaft sleeve in the axial direction, the telescopic movement of the shaft drives a key to slide on the shaft sleeve, and the seal is not affected.
Description
Technical field
The present invention relates to mechanical seal field, be specifically related to the filter-press mechanical seal that a kind of axle extending amount is larger.
Background technique
When filter-press starts and stops, temperature variation is comparatively large, and cause the telescopic variation amount of axle comparatively large, mechanical seal is affected.
Summary of the invention
The object of the invention is to overcome above-mentioned not enough problem, the filter-press mechanical seal that axle extending amount is larger is provided.
The technological scheme that the present invention is adopted for achieving the above object is: the filter-press mechanical seal that axle extending amount is larger, and mechanical seal is arranged on axle sleeve, and described axle sleeve and axle are by key transmission, and the keyway on described axle sleeve leaves gap vertically.
Described mechanical seal comprises side medium black box, atmospheric side black box, the two to be arranged in seal chamber and to be sleeved on axle sleeve, and lay respectively at spring both sides, described spring fitting is in the drive sleeve be connected with axle sleeve, described seal chamber is connected with the intermediate disk body be sleeved on axle sleeve, and the described intermediate disk body the other end is connected with bearing unit.
Described side medium black box comprises the side medium stationary ring be sleeved on successively on axle sleeve, side medium rotating ring, side medium throw-out collar, described side medium rotating ring contacts with spring one end, described side medium rotating ring installs side medium snap ring, described atmospheric side black box comprises the atmospheric side stationary ring be sleeved on successively on axle sleeve, atmospheric side rotating ring, atmospheric side throw-out collar, described atmospheric side rotating ring contacts with the spring the other end, described atmospheric side rotating ring installs atmospheric side snap ring, and described atmospheric side stationary ring is connected with intermediate disk body.
Between described side medium rotating ring and axle sleeve, anti-throw-out collar is installed, and between side medium stationary ring and seal chamber, stationary ring pressing plate is installed.
Described axle sleeve is positioned at drive sleeve place and is set with short sleeve, and described drive sleeve is arranged on short sleeve, and described side medium rotating ring and atmospheric side rotating ring are all sleeved on short sleeve.
Described bearing unit comprises bearing, bearing housing, bearing gland, and described bearing one end is intermediate disk body, and the other end is bearing gland, and outer ring suit bearing housing, described intermediate disk body, bearing housing, bearing gland are connected.
Described bearing housing is provided with lubricating cup.
Described bearing two ends are provided with lip envelope, are arranged on respectively in intermediate disk body and bearing gland.
Described drive sleeve is along the circumferential direction at least evenly provided with two springs.
Feature of the present invention is: structure is simple, be convenient to handling, good airproof performance, adopt Double End, balance type, many springs and share the arrangement of spring, the various corrosivity of effective isolation or toxic class medium, adapt to higher use pressure, uniform load and good compensatory can be provided, it is strong that anti-axle alters ability, and built-in bearing can reduce axle pendulum to the impact of sealing, and axially locating is carried out to sealing itself, sealing and axle key carry out transmission, and axle sleeve keyway axially reserve shaft extension contracting variable quantity, the flexible drive key of axle slides on axle sleeve, on sealing without impact.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention.
Fig. 2 is the partial enlarged drawing of Fig. 1.
Wherein: 1, side medium stationary ring 2, stationary ring pressing plate 3, side medium snap ring 4, side medium rotating ring 5, anti-throw-out collar 6, side medium throw-out collar 7, atmospheric side throw-out collar 8, atmospheric side rotating ring 9, atmospheric side snap ring 10, atmospheric side stationary ring 11, seal chamber 12, short sleeve 13, spring 14, drive sleeve 15, axle sleeve 16, intermediate disk body 17, lip envelope 18, lubricating cup 19, bearing housing 20, bearing 21, bearing gland 22, sheath 23, key 24, chassis.
Embodiment
As shown in Figure 1-2, the present invention is the filter-press mechanical seal that axle extending amount is larger, comprise side medium black box, atmospheric side black box, the two to be arranged in seal chamber 11 and to be sleeved on axle sleeve 15, and lay respectively at spring 13 both sides, described seal chamber 11 offers sealing liquid import and sealing liquid outlet, described spring 13 is arranged on drive sleeve 14 circumferentially uniformly for multiple spring, described axle sleeve 15 is positioned at drive sleeve 14 place and is set with short sleeve 12, short sleeve 12 is fixed on axle sleeve 15 by interior hexagonal cylindrical end jackscrew, described drive sleeve 14 is arranged on short sleeve 12, described side medium black box comprises the side medium stationary ring 1 be sleeved on successively on axle sleeve, side medium rotating ring 4, side medium throw-out collar 6, described side medium rotating ring 4 to be sleeved on short sleeve 12 and mounting O-shaped rings therebetween, and contact with spring 13 one end, described side medium rotating ring 4 installs side medium snap ring 3, between described side medium rotating ring 4 and short sleeve 12, anti-throw-out collar 5 is installed, and between side medium stationary ring 1 and seal chamber 11, stationary ring pressing plate 2 is installed, prevent from sealing from returning pressure to lose efficacy, described side medium stationary ring 1 is connected with chassis 24 by stop pin, and mounting O-shaped rings therebetween, described atmospheric side black box comprises atmospheric side stationary ring 10, atmospheric side rotating ring 8, atmospheric side throw-out collar 7, described atmospheric side rotating ring 8 to be sleeved on short sleeve 12 and mounting O-shaped rings therebetween, and contact with spring 13 the other end, described atmospheric side rotating ring 8 installs atmospheric side snap ring 9, described atmospheric side stationary ring 10 is connected with intermediate disk body 16 by stop pin, and mounting O-shaped rings therebetween, described intermediate disk body 16 one end is connected with seal chamber 11, therebetween mounting O-shaped rings, the other end is connected with bearing unit, described bearing unit comprises bearing 20, bearing housing 19, bearing gland 21, described bearing 20 one end is intermediate disk body 16, the other end is bearing gland 21, outer ring suit bearing housing 19, described bearing housing 19 is provided with lubricating cup 18, described bearing 20 two ends are provided with lip envelope 17, be arranged in intermediate disk body 16 and bearing gland 21 respectively, described bearing 20 is positioned at bearing gland 21 side and is provided with end ring, described bearing gland 21, bearing housing 20 is fixedly connected with intermediate disk body 16 by bolt, described seal chamber 11 one end is fixedly connected with chassis 24 by bolt, the other end is by stud bolt and intermediate disk body 16, bearing housing 19, bearing gland 21 is fixedly connected with, described axle sleeve 15 is positioned at atmospheric side one end and is connected with axle by key 23, keyway on described axle sleeve 15 leaves gap vertically, the end that axle sleeve 15 is positioned at key 23 place is provided with sheath 22, sheath 22 is fixed on axle sleeve 15 by jackscrew.
The present invention adopts Double End, balance type, many springs and share the arrangement of spring: the sealing of Double End placement of mechanical effectively can isolate the medium of various corrosivity or toxic class; Balanced seal can adapt to higher use pressure; Many spring structures can provide uniform load and good compensatory for end face; Shared spring design makes the anti-axle of sealing ability of altering strengthen; The intensity of seal ring is high, and resistance to temperature change capabilities is strong; Built-in bearing reduces axle pendulum to the impact of sealing, and carries out axially locating to mechanical seal itself; Sealing liquid is circulated by sealing liquid import and sealing liquid outlet, provides lubrication and cooling to sealing; Mechanical seal and axle key 23 carry out transmission, and the position of key 23 on axle is fixed, and the axle sleeve 15 of mechanical seal splines, and the axis of keyway reserves the variable quantity of shaft extension contracting, and the flexible drive key 23 of axle slides axially, on mechanical seal without impact.
The above; be only the present invention's preferably embodiment; but protection scope of the present invention is not limited thereto; anyly be familiar with those skilled in the art in the technical scope that the present invention discloses; be equal to according to technological scheme of the present invention and inventive concept thereof and replace or change, all should be encompassed within protection scope of the present invention.
Claims (9)
1. the filter-press mechanical seal that axle extending amount is larger, is characterized in that: mechanical seal is arranged on axle sleeve (15), and described axle sleeve (15) and axle are by key (23) transmission, and the keyway on described axle sleeve (15) leaves gap vertically.
2. the filter-press mechanical seal that axle extending amount as claimed in claim 1 is larger, it is characterized in that: described mechanical seal comprises side medium black box, atmospheric side black box, the two to be arranged in seal chamber (11) and to be sleeved on axle sleeve 15) on, and lay respectively at spring 13) both sides, described spring 13) be arranged in the drive sleeve (14) that is connected with axle sleeve (15), described seal chamber (11) is connected with the intermediate disk body (16) be sleeved on axle sleeve (15), and described intermediate disk body (16) the other end is connected with bearing unit.
3. the filter-press mechanical seal that axle extending amount as claimed in claim 2 is larger, it is characterized in that: described side medium black box comprises the side medium stationary ring (1) be sleeved on successively on axle sleeve, side medium rotating ring (4), side medium throw-out collar (6), described side medium rotating ring (4) contacts with spring (13) one end, described side medium rotating ring (4) is upper installs side medium snap ring (3), described atmospheric side black box comprises the atmospheric side stationary ring (10) be sleeved on successively on axle sleeve, atmospheric side rotating ring (8), atmospheric side throw-out collar (7), described atmospheric side rotating ring (8) contacts with spring (13) the other end, described atmospheric side rotating ring (8) is upper installs atmospheric side snap ring (9), described atmospheric side stationary ring (10) is connected with intermediate disk body (16).
4. the filter-press mechanical seal that axle extending amount as claimed in claim 3 is larger, it is characterized in that: between described side medium rotating ring (4) and axle sleeve (15), anti-throw-out collar (5) is installed, and between side medium stationary ring (1) and seal chamber (11), stationary ring pressing plate (2) is installed.
5. the filter-press mechanical seal that axle extending amount as claimed in claim 3 is larger, it is characterized in that: described axle sleeve (15) is positioned at drive sleeve (14) place and is set with short sleeve (12), described drive sleeve (14) is arranged on short sleeve (12), and described side medium rotating ring (4) and atmospheric side rotating ring (8) are all sleeved on short sleeve (12).
6. the filter-press mechanical seal that axle extending amount as claimed in claim 2 is larger, it is characterized in that: described bearing unit comprises bearing (20), bearing housing (19), bearing gland (21), described bearing (20) one end is intermediate disk body (16), the other end is bearing gland (21), outer ring suit bearing housing (19), described intermediate disk body (16), bearing housing (19), bearing gland (21) are connected.
7. the filter-press mechanical seal that axle extending amount as claimed in claim 6 is larger, is characterized in that: described bearing housing (19) is provided with lubricating cup (18).
8. the filter-press mechanical seal that axle extending amount as claimed in claim 6 is larger, is characterized in that: described bearing (20) two ends are provided with lip envelope (17), are arranged on respectively in intermediate disk body (16) and bearing gland (21).
9. the filter-press mechanical seal that axle extending amount as claimed in claim 2 is larger, is characterized in that: described drive sleeve (14) is along the circumferential direction at least evenly provided with two springs (13).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410821970.8A CN104534095A (en) | 2014-12-26 | 2014-12-26 | Mechanical seal for pressure filtering machine with large shaft telescopic amount |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410821970.8A CN104534095A (en) | 2014-12-26 | 2014-12-26 | Mechanical seal for pressure filtering machine with large shaft telescopic amount |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104534095A true CN104534095A (en) | 2015-04-22 |
Family
ID=52849682
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410821970.8A Pending CN104534095A (en) | 2014-12-26 | 2014-12-26 | Mechanical seal for pressure filtering machine with large shaft telescopic amount |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104534095A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109973657A (en) * | 2018-01-03 | 2019-07-05 | 双龙集团有限公司 | Lip type mechanically-sealing apparatus |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2172376Y (en) * | 1993-04-29 | 1994-07-20 | 张秋翔 | Double axle sleeve mechanical sealing device |
| JPH08285087A (en) * | 1995-04-10 | 1996-11-01 | Nippon Pillar Packing Co Ltd | Shaft seal system |
| CN2746210Y (en) * | 2004-12-04 | 2005-12-14 | 倪文龙 | Mechanical sealing |
| CN102537369A (en) * | 2012-01-01 | 2012-07-04 | 浙江兰天机械密封件有限公司 | Mechanical seal device for stirrer with vertically reciprocating stirring shaft |
| CN203348554U (en) * | 2013-07-03 | 2013-12-18 | 温州亚光机械制造有限公司 | Mechanical seal device |
-
2014
- 2014-12-26 CN CN201410821970.8A patent/CN104534095A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2172376Y (en) * | 1993-04-29 | 1994-07-20 | 张秋翔 | Double axle sleeve mechanical sealing device |
| JPH08285087A (en) * | 1995-04-10 | 1996-11-01 | Nippon Pillar Packing Co Ltd | Shaft seal system |
| CN2746210Y (en) * | 2004-12-04 | 2005-12-14 | 倪文龙 | Mechanical sealing |
| CN102537369A (en) * | 2012-01-01 | 2012-07-04 | 浙江兰天机械密封件有限公司 | Mechanical seal device for stirrer with vertically reciprocating stirring shaft |
| CN203348554U (en) * | 2013-07-03 | 2013-12-18 | 温州亚光机械制造有限公司 | Mechanical seal device |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109973657A (en) * | 2018-01-03 | 2019-07-05 | 双龙集团有限公司 | Lip type mechanically-sealing apparatus |
| CN109973657B (en) * | 2018-01-03 | 2024-05-31 | 双龙集团有限公司 | Lip type mechanical sealing device |
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Application publication date: 20150422 |