CN104195861B - A kind of belt type spiral that can improve mechanical seal service life - Google Patents
A kind of belt type spiral that can improve mechanical seal service life Download PDFInfo
- Publication number
- CN104195861B CN104195861B CN201410421125.1A CN201410421125A CN104195861B CN 104195861 B CN104195861 B CN 104195861B CN 201410421125 A CN201410421125 A CN 201410421125A CN 104195861 B CN104195861 B CN 104195861B
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- helical axis
- belt type
- type spiral
- taper sheath
- axle sleeve
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Abstract
The invention discloses a kind of belt type spiral that can improve mechanical seal service life, including helical axis, mechanical seal, bearing, axle sleeve, locking nut and belt pulley；Described helical axis includes the first helical axis and the second helical axis, and spiral is arranged on described first helical axis；It is enclosed within outside described second helical axis described axle sleeve concentric, and leaves gap between described axle sleeve and described second helical axis；Described mechanical seal is arranged on described second helical axis one end near described first helical axis；Described bearing is two, and said two bearing is arranged on described second helical axis；Described belt pulley is connected to described second helical axis one end away from described first helical axis；Wherein, described belt type spiral farther includes to position taper sheath, and more small-bore one end of taper sheath, described location is connected with one end of described axle sleeve, and one end of described taper sheath larger caliber is connected with described locking nut.Belt type spiral mechanical seal of the present invention envelope vapour is effective, and service life extends.
Description
Technical field
The present invention relates to the belt type spiral feeder being applied in the defibrator on papermaking or medium-density fiberboard production line, particularly relate to one and can improve mechanical seal belt type spiral in service life.
Background technology
In the defibrator system of papermaking or density fiber board slurrying, in order to ensure the uniformity of charging and obtain stable fiber quality, fill process uses belt type spiral feeding structure.Existing belt type spiral machine operation part is made up of helical axis, mechanical seal, two half-axile sleeves, twice bearing, locking nut and belt pulley.During operating, because axle sleeve and between centers leave gap, the concentricity of axle is caused to can not get ensureing under the effect of inertia force; end face of shaft bush and locking nut end face are easily worn, and locking was lost efficacy, and then produced vibrations; damage mechanical seal, substantial amounts of steam be mingled with material leak cause shutdown stop production.
Summary of the invention
To this end, the present invention provides a kind of at least one of new belt type spiral that at least can solve the problems referred to above, this belt type spiral can solve the problem that the concentricity issues of axle and axle sleeve, improves the service life of mechanical seal.
The invention provides a kind of belt type spiral with positioner, including helical axis, mechanical seal, bearing, axle sleeve, locking nut and belt pulley；Described helical axis includes the first helical axis and the second helical axis, and spiral is arranged on described first helical axis；It is enclosed within outside described second helical axis described axle sleeve concentric, and leaves gap between described axle sleeve and described second helical axis；Described mechanical seal is arranged on described second helical axis one end near described first helical axis；Described bearing is two, and said two bearing is arranged on described second helical axis；Described belt pulley is connected to described second helical axis one end away from described first helical axis；Wherein, described belt type spiral farther includes to position taper sheath, and more small-bore one end of taper sheath, described location is connected with one end of described axle sleeve, and one end of described taper sheath larger caliber is connected with described locking nut.
Alternatively, according to the belt type spiral of the present invention, the material of described location taper sheath is No. 45 steel.
Alternatively, according to the belt type spiral of the present invention, the tapering of described location taper sheath is 1:1～1:3.
Alternatively, belt type spiral of the present invention, it is provided with elastic washer between described location taper sheath and described locking nut.
Alternatively, belt type spiral of the present invention, one end of described location taper sheath larger caliber has circumferentially distributed extension.
Alternatively, belt type spiral of the present invention, described elastic washer is rubber washer.
Alternatively, belt type spiral of the present invention, the gap between described axle sleeve and described second helical axis is 5-6mm.
The belt type spiral using effect with positioner after improvement of the present invention is preferable; due to good concentricity; equipment vibrations reduce; locking nut does not wear and tear; do not have loosening; mechanical seal envelope vapour effect is preferable, and service life is extended, and improves production efficiency owing to decreasing downtime.
Accompanying drawing explanation
By reading the detailed description of hereafter preferred embodiment, various other advantage and benefit those of ordinary skill in the art be will be clear from understanding.Accompanying drawing is only used for illustrating the purpose of preferred embodiment, and is not considered as limitation of the present invention.And in whole accompanying drawing, it is denoted by the same reference numerals identical parts.In the accompanying drawings:
Fig. 1 is the structural representation of the belt type spiral that can improve mechanical seal service life of the present invention；And
Fig. 2 is the structural representation positioning taper sheath in one embodiment of the present invention.
In accompanying drawing, each mark implication is:
1-the first helical axis；1 '-the second helical axis；2-mechanical seal；3-bearing；4-axle sleeve；5-positions taper sheath；6-locking nut；7-belt pulley；8-spiral；9-extension.
Detailed description of the invention
The invention provides many applicable creative concepts, this creativeness concept can be reflected in a large number of in concrete context.Specific embodiment described in the following embodiments of the present invention is only used as the exemplary illustration of the detailed description of the invention of the present invention, and is not meant to limit the scope of the invention.
The invention will be further described with specific embodiment below in conjunction with the accompanying drawings.
The invention provides a kind of belt type spiral with positioner, this belt type spiral can solve the problem that the concentricity issues of axle and axle sleeve, improves the service life of mechanical seal.
Fig. 1 shows the structural representation of the belt type spiral that can improve mechanical seal service life of the present invention.As it is shown in figure 1, the described belt type spiral that can improve mechanical seal service life includes helical axis, mechanical seal 2, bearing 3, axle sleeve 4, locking nut 6 and belt pulley 7.Further, described helical axis includes the first helical axis 1 and the second helical axis 1 ', and spiral 8 is arranged on described first helical axis 1.As it is shown in figure 1, described first helical axis 1 relatively second helical axis 1 ' is thick, the end that the first helical axis 1 is connected with the second helical axis 1 ' is tapered.It is enclosed within described second helical axis 1 ' outer described axle sleeve 4 concentric, and leaves gap between described axle sleeve 4 and described second helical axis 1 '.The external diameter of more described first helical axis 1 of internal diameter of described axle sleeve 4 is smaller, seals so that being formed between the first helical axis and axle sleeve.Described mechanical seal 2 is arranged on that one end of described second close described first helical axis 1 of helical axis 1 ', to reinforce the sealing between the first helical axis and axle sleeve.Described bearing 3 is two, and said two bearing is arranged on described second helical axis 1 '.Usually, as it is shown in figure 1, said two bearing 3 is separately positioned on the position near described second two ends of helical axis, preferably to allow helical axis keep center to fix in rotation process.Described belt pulley 7 is connected to described second helical axis 1 ' that one end away from described first helical axis 1.
In original belt type spiral, for the ease of assembling, the gap left between the second helical axis 1 ' and axle sleeve 4 is traditionally arranged to be 5-6mm.After axle sleeve has been assembled, by locking nut screwing in the end of axle sleeve, it is achieved fixing of axle sleeve.As previously mentioned; the existence in this gap causes belt type spiral the problem that the concentricity of helical axis and axle sleeve can not get ensureing occur when rotating; and then end face of shaft bush and locking nut end face are easily worn; loosening occurs in locking nut; locking was lost efficacy; within about ten days, will shut down and step up once, to have a strong impact on production efficiency to locking nut.It is additionally, since locking nut to lose efficacy, causes belt type spiral to produce vibrations when rotating, mechanical seal causes damage, original mechanical seal generally use and begins to leakage damage half a year, need it is replaced, not only affect production, and improve cost of equipment maintenance.In order to solve this problem, belt type spiral of the present invention is additionally arranged location taper sheath 5 between described axle sleeve 4 and described locking nut 6.Specifically, the more small-bore one end of described location taper sheath 5 is connected with one end of described axle sleeve 4, and one end of described taper sheath 5 larger caliber is connected with described locking nut 6.The internal diameter of the more small-bore one end of described location taper sheath 5 is equal or slightly larger than the external diameter of described second helical axis, so that location taper sheath through described second helical axis and can be in close contact between the two；The external diameter of taper sheath 5 larger caliber one end, described location is equal to or slightly less than the external diameter of described locking nut, so that described locking nut by taper cover locking location, location, and can form sealing between the two.By arranging this location taper sheath; belt type spiral can sufficiently ensure the concentricity of axle and axle sleeve in the running; reduce the vibrations of equipment; thus ensure that locking nut does not haves abrasion and loosens; the service life of mechanical seal is also extended, and not only increases the sealing of equipment, and need not often shut down reinforced lock jack panel and change mechanical seal; decrease downtime, improve production efficiency.
In belt type spiral with positioner of the present invention, the tapering of described location taper sheath 5 can adjust according to described second helical axis 1 ' and the external diameter of described locking nut 6.Applicant it has been investigated that, if tapering is the least, then location taper sheath can be longer along the length of its center axis so that locking nut is excessive with the spacing distance of axle sleeve, is substantially reduced the locking effect of locking nut；And if tapering is excessive, then location taper sheath can be the shortest along the length of its center axis, can reduce the locking effect of locking nut equally, and when range of taper is 1:1～1:3, locking effect is optimal.Therefore, in the present invention, the tapering of described location taper sheath is set to 1:1～1:3.
In the belt type spiral that can improve mechanical seal service life of the present invention, the material of described location taper sheath 5 is preferably No. 45 steel.No. 45 steel are the conventional quenched structural steel of middle carbon.This steel cold plasticity is general, and annealing, normalizing are better than time quenched, have higher intensity and preferable machinability, can obtain certain toughness, plasticity and wearability after suitable heat treatment.Use this kind of material as location taper sheath, it is possible to ensure that it has preferable intensity and wearability, extend its service life.It is understood that the location taper sheath of other materials is applied equally to the present invention.
In the belt type spiral that can improve mechanical seal service life of the present invention, it is also possible to be provided with elastic washer (not shown in figure 1) between described location taper sheath 5 and described locking nut 6.The surface of scratch location taper sheath when this elastic washer can not only increase the Area of bearing being positioned taper sheath to reduce the pressure of contact position and to avoid fastening nut, and elasticity can be to one counter-force of locking nut so that faying face be adjacent to and then plays locking effect.By arranging this elastic washer, further enhancing the fastening effect of locking nut, reduce location taper sheath and the abrasion of locking nut, extend both service life, this elastic washer also has certain cushioning effect simultaneously, reduces the machine vibration impact on locking nut in belt type spiral operation process.Owing to rubber washer has good elasticity and restorative, adapt to pressure change and temperature fluctuation has suitable flexibility, can fit well with contact surface, therefore in an embodiment of the invention, the rubber washer that described elastic washer is made up of rubber.It is understood that the resilient packing ring of tool being made up of other materials is also applied for the present invention.
In order to make the contact area between elastic washer and location taper sheath bigger, make that both fit is tightr, and the present invention is provided with extension at described location taper sheath 5 in the one end contacted with elastic washer.Fig. 2 shows the structural representation of the location taper sheath with extension.As in figure 2 it is shown, described location taper sheath 5 has extension 9 in one end of its larger caliber, circumferentially distributed along larger caliber one end of this extension 9, form skirt border structure.By arranging this extension, elastic washer can form face with location taper sheath and contact, and increases friction between the two, it is achieved fit tightly.
The present invention solves belt type spiral rotation process axis and the concentricity issues of axle sleeve, improves the service life of mechanical seal, reduces cost of equipment maintenance, improve production efficiency.
It should be noted that above-described embodiment the present invention will be described rather than limits the invention, and those skilled in the art can design alternative embodiment without departing from the scope of the appended claims.In the claims, any reference symbol that should not will be located between bracket is configured to limitations on claims.Word " comprises " and does not excludes the presence of the element or step not arranged in the claims.Word first, second and third use do not indicate that any order, can be title by these word explanations.
Claims (7)
1. the belt type spiral that can improve mechanical seal service life, it is characterised in that include spiral shell
Spin axis, mechanical seal (2), bearing (3), axle sleeve (4), locking nut (6) and skin
Tep reel (7)；Described helical axis includes the first helical axis (1) and the second helical axis (1 '), spiral
(8) it is arranged on described first helical axis (1)；It is enclosed within described described axle sleeve (4) concentric
Second helical axis (1 ') outward, and stays between described axle sleeve (4) and described second helical axis (1 ')
There is gap；Described mechanical seal (2) is arranged on described second helical axis (1 ') near described first
One end of helical axis (1)；Described bearing (3) is two, and two bearings are arranged on described second
On helical axis (1 ')；Described belt pulley is connected to described second helical axis (1 ') away from described first
One end of helical axis (1)；Wherein,
Described belt type spiral farther includes to position taper sheath (5), described location taper sheath (5)
More small-bore one end is connected with the one end of described axle sleeve (4), described taper sheath (5) large mouth
The one end in footpath is connected with described locking nut (6)；
Described first helical axis (1) relatively the second helical axis (1 ') is thick.
Belt type spiral the most according to claim 1, it is characterised in that: described location taper sheath
(5) material is No. 45 steel.
Belt type spiral the most according to claim 1, it is characterised in that: described location taper sheath
(5) tapering is 1:1～1:3.
Belt type spiral the most according to claim 1, it is characterised in that: described location taper sheath
(5) and it is provided with elastic washer between described locking nut (6).
Belt type spiral the most according to claim 4, it is characterised in that: described location taper sheath
(5) one end of larger caliber has circumferentially distributed extension (9).
Belt type spiral the most according to claim 4, it is characterised in that: described elastic washer is
Rubber washer.
Belt type spiral the most according to claim 1, it is characterised in that: described axle sleeve (4) with
Gap between described second helical axis (1 ') is 5-6mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410421125.1A CN104195861B (en) | 2014-08-25 | 2014-08-25 | A kind of belt type spiral that can improve mechanical seal service life |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410421125.1A CN104195861B (en) | 2014-08-25 | 2014-08-25 | A kind of belt type spiral that can improve mechanical seal service life |
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| Publication Number | Publication Date |
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| CN104195861A CN104195861A (en) | 2014-12-10 |
| CN104195861B true CN104195861B (en) | 2016-08-24 |
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| CN201410421125.1A Active CN104195861B (en) | 2014-08-25 | 2014-08-25 | A kind of belt type spiral that can improve mechanical seal service life |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA2269980A1 (en) * | 1999-05-03 | 1999-11-01 | William Cumming Leith | Rotating disc wood chip refiner |
| CN201744219U (en) * | 2010-07-29 | 2011-02-16 | 兰州兰石化工机械技术工程有限公司 | New-type wax conveying device |
| CN201980704U (en) * | 2011-03-29 | 2011-09-21 | 河南丰博自动化有限公司 | Screw conveyer |
| CN202087113U (en) * | 2011-05-25 | 2011-12-28 | 山东景津环保设备有限公司 | Rapid spiral filter |
| CN204039828U (en) * | 2014-08-25 | 2014-12-24 | 云南玉加宝人造板有限公司 | A kind of belt type spiral that can improve mechanical seal service life |
-
2014
- 2014-08-25 CN CN201410421125.1A patent/CN104195861B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA2269980A1 (en) * | 1999-05-03 | 1999-11-01 | William Cumming Leith | Rotating disc wood chip refiner |
| CN201744219U (en) * | 2010-07-29 | 2011-02-16 | 兰州兰石化工机械技术工程有限公司 | New-type wax conveying device |
| CN201980704U (en) * | 2011-03-29 | 2011-09-21 | 河南丰博自动化有限公司 | Screw conveyer |
| CN202087113U (en) * | 2011-05-25 | 2011-12-28 | 山东景津环保设备有限公司 | Rapid spiral filter |
| CN204039828U (en) * | 2014-08-25 | 2014-12-24 | 云南玉加宝人造板有限公司 | A kind of belt type spiral that can improve mechanical seal service life |
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| Publication number | Publication date |
|---|---|
| CN104195861A (en) | 2014-12-10 |
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Effective date of registration: 20190821 Address after: 665000 North Suburb of Ning'er Town, Ning'er Hani and Yi Autonomous County, Puer City, Yunnan Province (beside the Wei Guo Bureau) Patentee after: Puer Oasis Wood Industry Co., Ltd. Address before: 653100 Yunnan city of Yuxi province high tech Zone Teng Xiaolu No. 36 Patentee before: Yunnan Yujiabao Artifical Wood Co., Ltd. |