CN202732978U - Liquid sealing device - Google Patents
Liquid sealing device Download PDFInfo
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- CN202732978U CN202732978U CN 201220324320 CN201220324320U CN202732978U CN 202732978 U CN202732978 U CN 202732978U CN 201220324320 CN201220324320 CN 201220324320 CN 201220324320 U CN201220324320 U CN 201220324320U CN 202732978 U CN202732978 U CN 202732978U
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- sealing
- rotating shaft
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- seal
- liquid sealing
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Abstract
The utility model provides a liquid sealing device and sealing liquid and relates to the mechanical field, in particular to an improvement of the structure of the liquid sealing device. The liquid sealing device is good in halt sealing effect, incapable of leakage and not prone to damage. The liquid sealing device comprises a sealing cavity body. A liquid sealing sleeve fixed with a rotating shaft of the sealing cavity body is arranged between the rotating shaft of the sealing cavity body and the sealing cavity body. A sealing liquid injection device is arranged on the sealing cavity body and corresponds to the liquid sealing sleeve. The liquid sealing device is structurally characterized in that two ends of the liquid sealing sleeve are both provided with centrifugal hammers provided with lifting hooks through cylindrical pins, a sealing iron ring is arranged outside the rotating shaft, blocking edges are arranged, corresponding to the lifting hooks of the centrifugal hammers, on the sealing iron ring, a magnetic ring, corresponding to the sealing iron ring, is arranged in the sealing cavity body, a halt sealing ring is arranged outside the magnetic ring, a tip, corresponding to the rotating shaft, is arranged on the end portion of the halt sealing ring, and a pressing plane, corresponding to the tip, is arranged on the sealing iron ring.
Description
Technical field
The utility model belongs to mechanical field, and in particular, the utility model relates to a kind of improvement of liquid sealing device structure.
Background technique
Sealing is developed into the mechanical seal of the second generation by the packing seal of the first generation, the history in more than 100 year has been arranged; Although comparing with packing seal, mechanical seal has multiple advantage; But it also has very important disadvantage, can not adapt to demand and following development of Vehicles Collected from Market.Mainly there is following shortcoming in it: 1, the sealing material cost is too high, its major part material: cemented carbide, pottery, stainless steel etc.; The cemented carbide maximum valency can reach 200 yuan of per kilograms.
2, because mechanical seal is very high for the accuracy of manufacturing requirement of Sealing, make its manufacturing process very complicated.
3, deposit the keeping difficulty large.
4, change sealing and recover difficulty.
5, working life is short.
Application number is 200610045922.X, and title is the application for a patent for invention of " hydraulic seal ", and this application for a patent for invention discloses a kind of liquid sealing device, and it has only simply introduced design and the principle of hydraulic seal; Because its technology path and Scheme design are improper, and pass through the inventor a large amount of experimental results show that after, it can't get a desired effect.Therefore say, this application for a patent for invention is a very incomplete imagination, must do and much replenish and improve and could realize.
The main problem of its existence is: the parking sealer effect is bad.
Parking sealer in the above-mentioned patent application be reach by " when stopping; liquid sealing ring can disperse axial two ends after losing axial pressure automatically; play the parking sealer effect " " on sealing gland and inner groove that side face contact; utilize high pressure with the flowable sealer of solid; be infused in from outside to inside gland interior encircle and Zhou Mian between inner groove in, play the loss of prevention seal ring " two technical characteristicss realize.
In the practical operation, it is desirable that this seal arrangement effect in initial three or four days can be said to be; After five or six days, just begin to leak, when particularly temperature is higher than 80 ℃, leak more and more serious; After beginning leakage phenomenon occurs, 5 milliliters of first day leakage rates, 8 milliliters of second day leakage rates, leakage rate was 16 milliliters in the 3rd day, and is later on more and more serious.
In addition, a side of seal arrangement and medium contact, owing to there not being parking sealer, a large amount of media can flow in the sealing fluid and mix with sealing fluid, affect sealing effect.
Be when replenishing sealing fluid in the seal arrangement, owing to there not being parking sealer, the amount that sealing fluid is injected is uncontrollable, or injects excessively, or injects inoperatively very little, uses inconvenience.
Summary of the invention
The utility model is exactly for the problems referred to above, provides a kind of parking sealer effective, can not leak, and non-damageable liquid sealing device.
For realizing above-mentioned purpose of the present utility model, the utility model adopts following technological scheme, the utility model comprises seal chamber, be provided with rotating shaft in the seal chamber, be provided with the hydraulic seal cover that fixes with rotating shaft between rotating shaft and the seal chamber, be provided with the sealing fluid injection device corresponding to the hydraulic seal cover on the seal chamber, the two ends of its structure outline hydraulic seal cover all have the centrifugal hammer of dialling hook by the straight pin setting, rotating shaft is outside equipped with the sealing iron hoop, and the hook of dialling corresponding to centrifugal hammer on the sealing iron hoop is provided with rib; Be provided with magnet ring corresponding to the sealing iron hoop in the seal chamber, magnet ring is outside equipped with the parking sealer circle, and the end of parking sealer circle is provided with the termination corresponding to rotating shaft; Described sealing iron hoop is provided with pressure surface corresponding to the termination.
As a kind of preferred version of the present utility model, the end of described seal chamber is provided with the sealing screw wheel that is fixedly connected with rotating shaft.
The beneficial effects of the utility model: 1, liquid sealing device of the present utility model is provided with the twice parking sealer in the both sides of hydraulic seal cover, has guaranteed the sealing when liquid sealing device stops; During parking, medium can not mix with sealing fluid owing to the reason of parking sealer, has guaranteed sealing effect; Maintenance free within 2 years.
2, liquid sealing device of the present utility model adopts the mode of magnetic force and centrifugal force to realize parking sealer, and under the driving state, parking sealer can guarantee that without wearing and tearing parking sealer is effective for a long time; And the reaction of parking sealer is quick, sensitive; Good sealing effect.
3, liquid sealing device of the present utility model is provided with the sealing screw wheel that is fixedly connected with rotating shaft in the end of seal chamber; When driving, 90% medium and pressure can be stopped outside, the medium of residue 10% and pressure have enough and to spare for the sealing effect of hydraulic seal cover; Make the sealing effect when driving better.
4, compare maximum advantage with mechanical seal be sealing in case reveal to liquid sealing device of the present utility model, no longer must parking maintenance, and tear open greatly greatly and unload; Under the driving state, can recover sealing as long as inject quantitative sealing fluid by the sealing fluid injection device, simple, convenient, light.
Description of drawings
Fig. 1 is structural representation of the present utility model (first half is vehicle stop state, and Lower Half is the driving state).
Fig. 2 is the I section enlarged view of Fig. 1.
In the accompanying drawing 1 for sealing screw wheel, 2 be the parking sealer circle, 3 for magnet ring, 4 for rotating shaft, 5 for seal chamber, 6 for seal groove, 7 for the sealing fluid injection device, 8 for the hydraulic seal cover, 9 for centrifugal hammer, 10 for rib, 11 for straight pin, 12 for dial hook, 13 for the sealing iron hoop, 14 for pressure surface, 15 be the termination.
Embodiment
The utility model comprises seal chamber 5, be provided with rotating shaft 4 in the seal chamber 5, be provided with the hydraulic seal cover 8 that fixes with rotating shaft 4 between rotating shaft 4 and the seal chamber 5, be provided with sealing fluid injection device 7 corresponding to hydraulic seal cover 8 on the seal chamber 5, the two ends of its structure outline hydraulic seal cover 8 all arrange by straight pin 11 has the centrifugal hammer 9 of dialling hook 12, rotating shaft 4 is outside equipped with sealing iron hoop 13, and the hook 12 of dialling corresponding to centrifugal hammer 9 on the sealing iron hoop 13 is provided with rib 10; Be provided with magnet ring 3 corresponding to sealing iron hoop 13 in the seal chamber 5, magnet ring 3 is outside equipped with parking sealer circle 2, and the end of parking sealer circle 2 is provided with termination 15 corresponding to rotating shaft 4; Described sealing iron hoop 13 is provided with pressure surface 14 corresponding to termination 15.
As a kind of preferred version of the present utility model; The end of described seal chamber 5 is provided with the sealing screw wheel 1 that is fixedly connected with rotating shaft 4.
8 liang of end surfaces of described hydraulic seal cover are provided with the spiral of opposite direction, are provided with hydraulic seal groove 6 between two spirals; Described sealing fluid injection device 7 is communicated with hydraulic seal groove 6.
Be provided with the pressure gauge that is communicated with hydraulic seal groove 6 on the described seal chamber 5.According to the manometric number of degrees, can clearly know the amount of hydraulic seal groove 6 interior sealing fluids, be convenient to replenishing sealing fluid.
Course of action below in conjunction with description of drawings the utility model liquid sealing device: during driving, shown in Fig. 1 Lower Half, at first, and 1 rotation of sealing screw wheel, it consists of spiral seal, and 90% medium and pressure of medium is stopped outside; Hydraulic seal cover 8 rotates, because the hand of spiral of its two end surfaces is opposite, therefore, along with hydraulic seal overlaps in 8 rotation processes, it can overlap hydraulic seal the sealing fluid of 8 both sides simultaneously to seal groove 6 interior pressures; Form the liquid sealing ring of a high pressure; By remaining 10% medium of this liquid sealing ring block media and pressure, have enough and to spare.
Along with hydraulic seal cover 8 rotates, the centrifugal hammer 9 on it can outwards swing because of centrifugal action, and the hook 12 of dialling on it can be with 13 groups on sealing iron hoop from magnet ring 3; At this moment, the termination 15 of parking sealer circle 2 is the pressure resilience of compression face 14 not, breaks away from rotating shaft 4; Prevent 2 wearing and tearing of parking sealer circle.
During parking, centrifugal hammer 9 is not subjected to centrifugal action; Sealing iron hoop 13 is attracted by magnet ring 3, and the pressure surface 14 of sealing iron hoop 13 is pressed onto the termination 15 of parking sealer circle 2 in the rotating shaft 4, plays the effect of parking sealer, when preventing the sealing fluid outflow, prevents that also medium from flowing in the seal groove 6.
When sealing fluid lacks, can fill by sealing fluid injection device 7.
Without the aggressive medium sealing fluid, comprise 4～6 parts of aquadags, 1～2 part of 704 Bond, 0.5～2 part of glycerine, 1～2 part of resin, 0.5～2 part of French chalk (mass fraction).
Embodiment 1: sealing fluid: without the aggressive medium sealing fluid, and concrete prescription: comprise 6 parts of aquadags, 1. parts of 704 Bonds, 0.5 part of glycerine, 1.5 parts of resins, 0.5 part of French chalk (mass fraction).
Experiment: the water medium experiment: temperature 0-180 degree, pressure 0-8 kilogram, pump revolution 2900 turn.
Use above-described embodiment configuration without the aggressive medium sealing fluid, when water medium seal, sealing effect: static pressure test 8 hours was without leaking, do not fall to press (standard-required voltage stabilizing 10 minutes qualified without leakage).
Dynamic rotary test: continuous two months, add up to and leak total amount not above 12 milliliters.12/60=0.2 milliliter hour (the international standard leakage rate per hour is no more than 3 milliliters, 1 year life-span).
Embodiment 2: sealing fluid: without the aggressive medium sealing fluid, comprise 5 parts of aquadags, 2 parts of 704 Bonds, 0.5 part of glycerine, 2 parts of resins, 0.5 part of French chalk (mass fraction).
Experiment: the experiment of sewage medium: temperature: 0-80 degree, pressure 0-8 kilogram, pump revolution 2900 turn.
Use above-described embodiment configuration without the aggressive medium sealing fluid, to the sewage medium-tight time, sealing effect: static pressure test 8 hours is without leaking, not falling to press.(standard-required voltage stabilizing nothing leakage in 10 minutes is qualified) dynamic rotary is tested continuous two months without leaking total leakage total amount not above 18 milliliters.Ml/hour 18/60=0.3 (the international standard leakage rate per hour is no more than 3 milliliters, 1 year life-span).
The medium-tight of being able to bear strong corrosion liquid comprises 3～6 parts of teflon, 1～2 part of 704 Bond, 0.5～2 part of glycerine, 1.5～3 parts of resins, 1～3 part of French chalk (mass fraction).
Embodiment 1: sealing fluid: the medium-tight of being able to bear strong corrosion liquid: 6 parts of teflon, 2 parts of 704 Bonds, 0.5 part of glycerine, 1.5 parts of resins, 1 part of French chalk (mass fraction).
Experiment 1: sulfuric acid medium experiment: temperature 60 degree, pressure: 0-8 kilogram, pump revolution 2900 turn.
Use the medium-tight liquid of being able to bear strong corrosion of above-described embodiment configuration, when 40% sulfuric acid medium was sealed, sealing effect: 8 hours nothings of static pressure test were leaked, are not fallen to press.(standard-required voltage stabilizing nothing leakage in 10 minutes is qualified) dynamic rotary is tested continuous one month without leaking.Add up to and leak total amount not above 22 milliliters.Ml/hour 22/30=0.733 (the international standard leakage rate per hour is no more than 3 milliliters, 3 months life-spans).
Experiment 2: alkali lye medium experiment: temperature 80 degree, pressure: 0～8 kilogram, pump revolution 2900 turn.
Use the medium-tight liquid of being able to bear strong corrosion of above-described embodiment configuration, to the alkali lye medium-tight time, sealing effect: 8 hours nothings of static pressure test are leaked, are not fallen to press.(standard-required voltage stabilizing nothing leakage in 10 minutes is qualified) dynamic rotary is tested continuous one month without leaking.Add up to and leak total amount not above 20 milliliters.Ml/hour 20/30=0.666 (the international standard leakage rate per hour is no more than 3 milliliters, 3 months life-spans).
The high-temperature resistant medium sealing fluid comprises 2～5 parts of cemented carbide powders, 1～2 part of rubber, 1～3 part of 704 Bond, 1～3 part of glycerine, 1～3 part of resin, 1～3 part of French chalk (mass fraction).
Embodiment: sealing fluid: high-temperature resistant medium sealing fluid: 5 parts of cemented carbide powders, 1 part of rubber, 1 part of 704 Bond, 1 part of glycerine, 1 part of resin, 1 part of French chalk (mass fraction).
Experiment 1: the experiment of conduction oil medium, temperature 300 degree, pressure: 8-40 kilogram, pump revolution 2900 turn.
Use the medium-tight liquid of being able to bear strong corrosion of above-described embodiment configuration, to the conduction oil medium-tight time, sealing effect: 8 hours nothings of static pressure test are leaked, are not fallen to press.(standard-required voltage stabilizing nothing leakage in 10 minutes is qualified) dynamic rotary is tested continuous two months without leaking.Add up to and leak total amount not above 30 milliliters.Ml/hour 30/60=0.5 (the international standard leakage rate per hour is no more than 3 milliliters, 1 year life-span).
Experiment 2: the experiment of crude oil medium, temperature 350 degree, pressure; 8-40 kilogram, pump revolution 2900 turn.
Use the medium-tight liquid of being able to bear strong corrosion of above-described embodiment configuration, to the crude oil medium-tight time, sealing effect: 8 hours nothings of static pressure test are leaked, are not fallen to press.(standard-required voltage stabilizing nothing leakage in 10 minutes is qualified) dynamic rotary is tested continuous two months without leaking.Add up to and leak total amount not above 54 milliliters.Ml/hour 54/60=0.9 (the international standard leakage rate per hour is no more than 3 milliliters, 1 year life-span).
Claims (4)
1. liquid sealing device, comprise seal chamber (5), be provided with rotating shaft (4) in the seal chamber (5), be provided with the hydraulic seal cover (8) that same rotating shaft (4) fixes between rotating shaft (4) and the seal chamber (5), seal chamber (5) is upper to be provided with sealing fluid injection device (7) corresponding to hydraulic seal cover (8), it is characterized in that: the two ends of hydraulic seal cover (8) all have the centrifugal hammer (9) of dialling hook (12) by straight pin (11) setting, rotating shaft (4) is outside equipped with sealing iron hoop (13), and the upper hook (12) of dialling corresponding to centrifugal hammer (9) of sealing iron hoop (13) is provided with rib (10); Be provided with magnet ring (3) corresponding to sealing iron hoop (13) in the seal chamber (5), magnet ring (3) is outside equipped with parking sealer circle (2), and the end of parking sealer circle (2) is provided with termination (15) corresponding to rotating shaft (4); Described sealing iron hoop (13) is provided with pressure surface (14) corresponding to termination (15).
2. liquid sealing device according to claim 1, it is characterized in that: described hydraulic seal cover (8) two end surfaces are provided with the spiral of opposite direction, are provided with hydraulic seal groove (6) between two spirals; Described sealing fluid injection device (7) is communicated with hydraulic seal groove (6).
3. liquid sealing device according to claim 1 is characterized in that: be provided with the pressure gauge that is communicated with hydraulic seal groove (6) on the described seal chamber (5).
4. liquid sealing device according to claim 1 is characterized in that: the end of described seal chamber (5) is provided with the sealing screw wheel (1) that same rotating shaft (4) is fixedly connected with.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220324320 CN202732978U (en) | 2012-07-06 | 2012-07-06 | Liquid sealing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220324320 CN202732978U (en) | 2012-07-06 | 2012-07-06 | Liquid sealing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202732978U true CN202732978U (en) | 2013-02-13 |
Family
ID=47658679
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220324320 Withdrawn - After Issue CN202732978U (en) | 2012-07-06 | 2012-07-06 | Liquid sealing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202732978U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103090011A (en) * | 2012-07-06 | 2013-05-08 | 马卫东 | Liquid sealing device and sealing liquid |
| CN104214345A (en) * | 2014-06-20 | 2014-12-17 | 辽阳泵业密封有限公司 | Multi-level sealing device |
| CN104879499A (en) * | 2015-05-04 | 2015-09-02 | 西安近代化学研究所 | Dustproof sealing device |
| CN111237472A (en) * | 2020-01-10 | 2020-06-05 | 西安交通大学 | Rotating shaft threaded water sealing structure based on sealing cavity |
-
2012
- 2012-07-06 CN CN 201220324320 patent/CN202732978U/en not_active Withdrawn - After Issue
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103090011A (en) * | 2012-07-06 | 2013-05-08 | 马卫东 | Liquid sealing device and sealing liquid |
| CN103090011B (en) * | 2012-07-06 | 2015-04-29 | 辽阳泵业密封有限公司 | Liquid sealing device and sealing liquid |
| CN104214345A (en) * | 2014-06-20 | 2014-12-17 | 辽阳泵业密封有限公司 | Multi-level sealing device |
| CN104879499A (en) * | 2015-05-04 | 2015-09-02 | 西安近代化学研究所 | Dustproof sealing device |
| CN104879499B (en) * | 2015-05-04 | 2018-01-23 | 西安近代化学研究所 | A kind of dust-proof sealing device |
| CN111237472A (en) * | 2020-01-10 | 2020-06-05 | 西安交通大学 | Rotating shaft threaded water sealing structure based on sealing cavity |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: LIAOYANG PUMP SEALING CO., LTD. Free format text: FORMER OWNER: MA WEIDONG Effective date: 20140428 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| COR | Change of bibliographic data |
Free format text: CORRECT: ADDRESS; FROM: 110021 SHENYANG, LIAONING PROVINCE TO: 111000 LIAOYANG, LIAONING PROVINCE |
|
| TR01 | Transfer of patent right |
Effective date of registration: 20140428 Address after: 111000, No. 117, Wenhua Road, Baita District, Liaoning, Liaoyang Patentee after: LIAOYANG PUMP INDUSTRY SEAL CO., LTD. Address before: Xiong Jia Gang Tiexi District Shenyang road 19 Lane 110021 No. 5-1-1 city in Liaoning Province Patentee before: Ma Weidong |
|
| AV01 | Patent right actively abandoned |
Granted publication date: 20130213 Effective date of abandoning: 20150429 |