CN201265122Y - Cast iron drying cylinder end cover for paper making machine - Google Patents
Cast iron drying cylinder end cover for paper making machine Download PDFInfo
- Publication number
- CN201265122Y CN201265122Y CNU200820074902XU CN200820074902U CN201265122Y CN 201265122 Y CN201265122 Y CN 201265122Y CN U200820074902X U CNU200820074902X U CN U200820074902XU CN 200820074902 U CN200820074902 U CN 200820074902U CN 201265122 Y CN201265122 Y CN 201265122Y
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- CN
- China
- Prior art keywords
- end cap
- annulus
- drying cylinder
- end cover
- cap flange
- 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.)
- Expired - Fee Related
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Abstract
The utility model relates to a cast-iron drying cylinder end cover dedicated to a paper machine. Mounting holes are circumferentially evenly arranged on the outer edge of the end cover; wherein, a circular ring which is extended along the axial direction of the flange of the end cover is coaxially assembled on the outside of the flange of the end cover. The utility model effectively resolves the problem of the concentration of heat stress, meanwhile, processing and fabrication are easy, and the service life is long.
Description
Technical field
The utility model belongs to the papermaking equipment field, and especially a kind of paper machine is the drying cylinder end cap cylinder iron.
Background technology
Drying cylinder is the critical piece of drying section of paper machine, and during work, drying cylinder inside passes to the high temperature saturated vapor, so it is again a pressure vessel, so its safety in utilization is most important.Stress Control is its primary content when the design of drying cylinder.
The outer rim position of drying cylinder end cap is with the uniform installing hole that is shaped in footpath, and be installed on the fore side of drying cylinder, being recessed on the drying cylinder cylinder face of carrier rope, but so just in time in the inboard discontinuous construction of the end cap flange outside, this local secondary stress originally is just very big, further cause stress to strengthen behind the fluting undoubtedly again, so now method of on overhanging position, slotting that adopts more.But show that by FEM (finite element) calculation for the drying cylinder end cap edge of cast iron quality, under high temperature, high pressure effect, overhanging body heat stress is concentrated very serious.In production reality, most of drying cylinder accidents all are that the overhanging body at the end cap edge produces.
Summary of the invention
The purpose of this utility model is to overcome the deficiencies in the prior art, provides a kind of design science rationally and the paper machine that can effectively reduce thermal stress drying cylinder end cap cylinder iron.
The utility model solves its technical problem and is achieved through the following technical solutions:
A kind of paper machine is the drying cylinder end cap cylinder iron, at the uniform installing hole that is shaped in same footpath, the outer rim position of end cap, it is characterized in that: be coaxially installed with one along its axially extended annulus in the outside, end cap flange position.
And the outer rim coaxial package of described end cap flange has an annulus.
And described annulus is identical with the end cap flange outer diameter and be coaxially installed on the end cap flange outer face.
And, between described annulus and end cap flange one heat insulating mattress is installed.
And the heat insulating mattress of being installed between described annulus and end cap flange is an asbestos pad.
And, between described end cap flange outer rim and the annulus, all install between annulus and the end cap flange outer face by trip bolt.
Advantage of the present utility model and beneficial effect are:
1. the annulus of this drying cylinder end cap separates with end cap, has solved the concentrated problem of thermal stress of overhanging body.
2. the annulus of this drying cylinder end cap welds with the steel plate reel, and then is connected with end cap, and processing and manufacturing is easy.
3. this drying cylinder end cap steel plate reel heat resistanceheat resistant strain intensity height has prolonged service life.
4. separate with asbestos pad between this drying cylinder end cap and the annulus, stop the heat conduction, further reduced the problem that thermal stress is concentrated.
5. the utility model has solved the problem that thermal stress is concentrated effectively, and processing and manufacturing simultaneously is easy, long service life.
Description of drawings
Fig. 1 is a front view of the present utility model;
Fig. 2 is that the A-A of Fig. 1 is to cross-sectional view;
Fig. 3 is the B portion enlarged diagram of Fig. 2;
Fig. 4 is the front view of another embodiment of the utility model;
Fig. 5 is that the C-C of Fig. 4 is to cross-sectional view;
Fig. 6 is the D portion enlarged diagram of Fig. 5;
The specific embodiment
The utility model is described in further detail below by specific embodiment, and following examples are descriptive, is not determinate, can not limit protection domain of the present utility model with this.
Embodiment 1:
A kind of paper machine is the drying cylinder end cap cylinder iron, and same directly uniform a plurality of installing holes 2 that are shaped in the axial direction adopt construction bolt (not shown) that it is installed on the fore side of drying cylinder (not shown) by this installing hole at the outer rim position of end cap 3.Innovative point of the present utility model is: be coaxially installed with an annulus 1 in the outside, end cap flange position, this annulus is set on the end cap flange outer rim and along it and axially extends.Heat insulation asbestos pad 5 is installed between annulus and end cap flange, can stops the heat conduction to be concentrated with further reduction thermal stress by this heat insulation asbestos pad, the internal diameter of annulus should be slightly larger than the end cap flange outer diameter for this reason.Annulus radially and the outer rim of end cap flange radially all be processed with corresponding screw, realize that by this screw end cap flange outer rim and annulus employing trip bolt 4 install.
Above-mentioned annulus is a steel, and available steel plate reel is welded.
Embodiment 2:
A kind of paper machine is the drying cylinder end cap cylinder iron, and it is made up of end cap flange and annulus equally, but what be different from embodiment 1 is the installation site of annulus size and annulus and end cap flange, is described in detail below:
Annulus described in the present embodiment is the equidiameter circular ring 6 identical with the end cap flange outer diameter, at the inboard uniform lug 7 that is shaped on the band screw of this equidiameter circular ring, the screw that trip bolt 8 passes lug is installed on annulus on the end cap flange outer face, is lined with heat insulation asbestos pad 9 between described annulus and end cap flange.
Other are same as embodiment 1.
Claims (6)
1. paper machine drying cylinder end cap cylinder iron, is characterized in that: be coaxially installed with one along its axially extended annulus in the outside, end cap flange position with the uniform installing hole that is shaped in footpath at the outer rim position of end cap.
2. paper machine according to claim 1 is the drying cylinder end cap cylinder iron, it is characterized in that: the outer rim coaxial package of described end cap flange has an annulus.
3. paper machine according to claim 1 is the drying cylinder end cap cylinder iron, it is characterized in that: described annulus is identical with the end cap flange outer diameter and be coaxially installed on the end cap flange outer face.
4. according to claim 2 or 3 described paper machines drying cylinder end cap cylinder iron, it is characterized in that: between described annulus and end cap flange one heat insulating mattress is installed.
5. paper machine according to claim 4 is the drying cylinder end cap cylinder iron, it is characterized in that: the heat insulating mattress of being installed between described annulus and end cap flange is an asbestos pad.
6. according to claim 2 or 3 described paper machines drying cylinder end cap cylinder iron, it is characterized in that: between described end cap flange outer rim and the annulus, all install between annulus and the end cap flange outer face by trip bolt.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU200820074902XU CN201265122Y (en) | 2008-05-30 | 2008-05-30 | Cast iron drying cylinder end cover for paper making machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU200820074902XU CN201265122Y (en) | 2008-05-30 | 2008-05-30 | Cast iron drying cylinder end cover for paper making machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201265122Y true CN201265122Y (en) | 2009-07-01 |
Family
ID=40831487
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU200820074902XU Expired - Fee Related CN201265122Y (en) | 2008-05-30 | 2008-05-30 | Cast iron drying cylinder end cover for paper making machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201265122Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102234953A (en) * | 2010-05-06 | 2011-11-09 | 安德里特斯公开股份有限公司 | Yankee dryer for drying a pulp web |
| CN108755230A (en) * | 2018-06-19 | 2018-11-06 | 东莞市联洲知识产权运营管理有限公司 | A kind of end cap connection structure on paper-making drying cylinder |
-
2008
- 2008-05-30 CN CNU200820074902XU patent/CN201265122Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102234953A (en) * | 2010-05-06 | 2011-11-09 | 安德里特斯公开股份有限公司 | Yankee dryer for drying a pulp web |
| CN102234953B (en) * | 2010-05-06 | 2016-03-30 | 安德里特斯公开股份有限公司 | For the Yankee dryer of dry pulp web |
| CN108755230A (en) * | 2018-06-19 | 2018-11-06 | 东莞市联洲知识产权运营管理有限公司 | A kind of end cap connection structure on paper-making drying cylinder |
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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: 20090701 Termination date: 20100530 |