CN201891048U - Sealing device for vacuum chamber of vacuum roll - Google Patents
Sealing device for vacuum chamber of vacuum roll Download PDFInfo
- Publication number
- CN201891048U CN201891048U CN2010205214199U CN201020521419U CN201891048U CN 201891048 U CN201891048 U CN 201891048U CN 2010205214199 U CN2010205214199 U CN 2010205214199U CN 201020521419 U CN201020521419 U CN 201020521419U CN 201891048 U CN201891048 U CN 201891048U
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- sealing strip
- sealing
- seal groove
- elastic device
- vacuum
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Abstract
The utility model relates to the field of a papermaking machine, and particularly to a sealing device for a vacuum chamber of a vacuum roll. For prolonging the service life of sealing strip for the vacuum chamber of the vacuum roll, the utility model provides the sealing device of the vacuum chamber of the vacuum roll, which is mainly composed of the following components: a sealing groove 3, the sealing strip 4, an elastic device, etc. The sealing strip and the elastic device are provided in the sealing groove. The sealing strip is provided at an upper part of the elastic device. The utility model is characterized in that: a plurality of fixing holes are machined on the sealing groove 3 and the sealing strip 4; and pins or bolts which pass through the fixing holes on the sealing strip are fixed in unthreaded holes or screw holes of the sealing groove 3. According to the utility model, while the sealing performance is ensured, the wearing is stopped after the sealing strip is worn to a certain degree. A critical contact state between the inner walls of the tube of the vacuum roll is obtained thereby greatly reducing or preventing various items of loss caused by sealing strip wearing.
Description
Technical field
The utility model relates to the papermaking equipment field, is a kind of sealing device of vacuum furnace vacuum tank specifically.
Background technology
Vacuum furnace is widely used in the wet end and the press section of paper machine, is the nucleus equipment of paper machine, and it mainly is made up of parts such as the vacuum tank of cylindrical shell, inner barrel, bearing support assemblies, and the vacuum furnace that has also has speed reduction gearing.Vacuum furnace mainly utilizes the negative-pressure adsorption page in the vacuum tank or the net blanket is dewatered on the paper machine, in order to guarantee that vacuum tank has enough negative pressure, between vacuum tank and the cylinder inboard wall good sealing must be arranged, existing sealing device mainly contains parts such as seal groove, sealing strip, elastic device to be formed, and seal groove is the straight trench structure of inwall.Sealing strip and elastic device all are installed in the seal groove, the sealing strip both sides are straight, cooperate with the inwall of seal groove, sealing strip all is wear-resisting macromolecular material or the rubber graphite composite material with good self-lubricating property generally, elastic device generally all is a plurality of spiral compression springs or rubber pneumatic tyre, the top that sealing strip is installed in elastic device contacts with the roller inwall, the effect of elastic device is to make to be in the excellent contact state between sealing strip and the cylindrical shell all the time, because contact all the time between the cylindrical shell of sealing strip and rotation, elastic force effect lower seal bar at elastic device can produce wearing and tearing, be consumable accessory, need periodic replacement.In case the sealing strip excessive wear can not in time be changed, will cause vacuum tank vacuum low excessively, can't reach the instructions for use of production, cause the paper machine to shut down, production is caused damage.The periodic replacement sealing strip is one of vacuum furnace most principal work, changes sealing strip and generally vacuum furnace could need be changed from opening roller after the paper machine is pulled down, and have to pay a large amount of expenses for this reason and purchase a same vacuum furnace in addition as standby.Therefore and the power of consumption is bigger simultaneously because sealing strip has caused sealing strip " brake " effect to cylinder inboard wall to the pressure of cylinder inboard wall, roller.
Vacuum furnace is one of the most expensive roller of paper machine, and the production loss of using the standby roller cause to order, shut down roll change to cause because of sealing strip, to change expenses such as sealing strip, power consumption huge.
The utility model content
In order to prolong the service life of vacuum furnace vacuum tank sealing strip as far as possible, minimizing is because of changing the sealing strip influence that production causes to the paper machine, the utility model provides a kind of sealing device of vacuum furnace vacuum tank, the sealing strip of sealing device is when guaranteeing sealing, stop wearing and tearing after making sealing strip may wear to certain state, and reach a kind of critical contact condition between the vacuum furnace cylinder inboard wall, thereby the every loss that reduces in a large number or avoid causing because of the sealing strip wearing and tearing comprises power consumption.
The technical scheme that its technical problem that solves the utility model adopts is: the utility model mainly is made up of parts such as seal groove, sealing strip, elastic devices, sealing strip and elastic device all are installed in the seal groove, sealing strip is contained in the top of elastic device, the top of sealing strip contacts with the roller inwall, the inwall of both sides and seal groove cooperates, elastic device is contained in the seal groove bottom, and elastic device is rubber pneumatic tyre or a plurality of spiral compression spring.It is characterized in that, the a plurality of fixing holes of processing on seal groove and sealing strip, the fixing hole axial location of seal groove and sealing strip is to correspondence, fixing hole on the seal groove is circular unthreaded hole or screwed hole, passes the bearing pin of the fixing hole on the sealing strip or is bolted in the unthreaded hole or screwed hole of seal groove.
The beneficial effects of the utility model are, the utility model can be when guaranteeing sealing, stop wearing and tearing after making sealing strip may wear to a certain degree, and reach a kind of critical contact condition between the vacuum furnace cylinder inboard wall, thereby the every loss that reduces in a large number or avoid causing because of the sealing strip wearing and tearing comprises power consumption.
Description of drawings
Below in conjunction with drawings and Examples the utility model is further specified.
Fig. 1 is the utility model specific embodiment structural representation Fig. 1.
Fig. 2 is the utility model specific embodiment structural representation Fig. 2.
1. cylindrical shells among the figure, 2. vacuum tank, 3. seal groove, 4. sealing strip, 5. rubber pneumatic tyre, 6. bearing pin.
The specific embodiment
Specific embodiment as depicted in figs. 1 and 2, mainly form by seal groove 3, sealing strip 4, rubber pneumatic tyre 5, bearing pin 6, sealing strip 4 and rubber pneumatic tyre 5 all are installed in the seal groove 3, sealing strip 4 is contained in the top of rubber pneumatic tyre 5, the top of sealing strip 4 contacts with the inwall of roller cylindrical shell 1, and rubber pneumatic tyre 5 is contained in the bottom of seal groove 3.The a plurality of fixing holes of processing on seal groove 3 and sealing strip 5, the fixing hole axial location of seal groove 3 and sealing strip 4 is to correspondence, fixing hole on the seal groove 3 is circular unthreaded hole, fixing hole on the sealing strip 4 is the strip shape hole, bearing pin 6 passes the fixing hole on seal groove 3 and the sealing strip 4, is welded on the side of seal groove.
Fig. 1 is the structural representation of sealing strip when just having brought into use, this moment, bearing pin 6 was positioned at the top of sealing strip 4 fixing holes, under the effect of rubber pneumatic tyre 5, sealing strip 4 be pressed on cylindrical shell 1 inwall wearing and tearing gradually and gradually on move, until as shown in Figure 2, bearing pin 6 is positioned at the bottom of sealing strip 4 fixing holes, because stopping of bearing pin six, sealing strip 4 can not continue to move, reach critical contact condition between sealing strip 4 and cylindrical shell 1 inwall, sealing strip 4 no longer continues wearing and tearing, at this moment, owing to be in critical contact condition between sealing strip 4 and cylindrical shell 1 inwall, the very little or not friction of the friction between sealing strip 4 and cylindrical shell 1 inwall also reduces significantly because of friction between sealing strip 4 and cylindrical shell 1 inwall produces power consumption.
Claims (2)
1. the sealing device of a vacuum furnace vacuum tank, mainly by seal groove, sealing strip, elastic device is formed, sealing strip and elastic device all are installed in the seal groove, sealing strip is contained in the top of elastic device, the top of sealing strip contacts with the roller inwall, the inwall of both sides and seal groove cooperates, elastic device is contained in the seal groove bottom, it is characterized in that, the a plurality of fixing holes of processing on seal groove and sealing strip, the fixing hole axial location of seal groove and sealing strip is to correspondence, fixing hole on the seal groove is circular unthreaded hole or screwed hole, passes the bearing pin of the fixing hole on the sealing strip or is bolted in the unthreaded hole or screwed hole of seal groove.
2. the sealing device of vacuum furnace vacuum tank according to claim 1, elastic device are rubber pneumatic tyre or a plurality of compression spring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205214199U CN201891048U (en) | 2010-08-29 | 2010-08-29 | Sealing device for vacuum chamber of vacuum roll |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205214199U CN201891048U (en) | 2010-08-29 | 2010-08-29 | Sealing device for vacuum chamber of vacuum roll |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201891048U true CN201891048U (en) | 2011-07-06 |
Family
ID=44220525
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010205214199U Expired - Fee Related CN201891048U (en) | 2010-08-29 | 2010-08-29 | Sealing device for vacuum chamber of vacuum roll |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201891048U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111058328A (en) * | 2018-10-16 | 2020-04-24 | 李飞 | Vacuum roll for mesh pressing part of paper machine |
-
2010
- 2010-08-29 CN CN2010205214199U patent/CN201891048U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111058328A (en) * | 2018-10-16 | 2020-04-24 | 李飞 | Vacuum roll for mesh pressing part of paper machine |
| CN111058328B (en) * | 2018-10-16 | 2024-04-09 | 李飞 | Vacuum roller of paper machine net press part |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110706 Termination date: 20110829 |