CN203977221U - A kind of abrasive disk of stuff grinder - Google Patents
A kind of abrasive disk of stuff grinder Download PDFInfo
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- CN203977221U CN203977221U CN201420355954.XU CN201420355954U CN203977221U CN 203977221 U CN203977221 U CN 203977221U CN 201420355954 U CN201420355954 U CN 201420355954U CN 203977221 U CN203977221 U CN 203977221U
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- fluted disc
- center
- utility
- roll flute
- inner region
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Abstract
The utility model discloses a kind of abrasive disk of stuff grinder, comprise the outskirt fluted disc, inner region fluted disc and the center fluted disc that are set gradually to center by mill outer rim; Roll flute on described outskirt fluted disc, inner region fluted disc and center fluted disc is equiangular spiral shape; Starting from described outskirt fluted disc the shape that the multiple roll flutes to inner region fluted disc and center fluted disc correspondence position form continuously successively overlaps with the part track of equiangular spiral; Rolling disc and fixed disk are in the time of relative motion at any time, and the value of the instantaneous alternate angle of formation is constant.The abrasive disk of stuff grinder that the utility model provides has improved the stability of pulp quality.
Description
Technical field
The utility model relates to paper making equipment technical field, relates in particular to a kind of abrasive disk of stuff grinder.
Background technology
People increase gradually to the demand of paper in daily life, and the requirement of paper quality is also increased day by day, and this just must bring the room for promotion of the dual aspect of quality and quantity to paper industry.
Fiberizer is one of topmost equipment in pulping and papermaking processes, and mill is the key components and parts of fiberizer.A fiberizer generally has two to three mills, is divided into Moving plate and price fixing, between Moving plate, price fixing, has certain interval, and slurry flows and sheared and grind in this area of space, and this region is called as making beating district or defibrination district.Particularly, according to defibrination requirement, above-mentioned defibrination district can be divided into several mill districts, is generally concentric circles and arranges, as corase grind district, Zhong Moqu, fine grinding district etc.On mill, being intervally distributed with roll flute, is teeth groove between adjacent roll flute.In production, slurry flows in teeth groove, is subject to the making beating effect of roll flute and forms paper pulp.
The mill using at present generally adopts radial teeth or parallel teeth, on mill the distribution arrangement of roll flute be with the axis of mill towards periphery radial distribution (being radial teeth) or with the parallel distribution of radius of mill.
Generally, when slurry enters defibrination district, itself there is certain initial velocity, rotate with mill the effect that is simultaneously subject to various power after entering defibrination district, thereby slurry is actually and flows with certain functional form.The radial distribution of roll flute or parallel distribution make slurry cannot fully enter teeth groove, easily cause stock inlet to stop up, thereby cause spindle vibration.
When moving fixed millstone roll flute intersects, form instantaneous alternate angle (as shown in Figure 2), excursion is ± 90 °.The roll flute angle of cut cuts off ability for roll flute and pulp quality has very important impact, and roll flute is parallel to each other, and making beating effect is the strongest; Roll flute is mutually vertical, and cutting action is the strongest.In fact, for specific paper, be certain to the requirement of paper properties, thereby be also certain for the requirement of slurry, so wish that keeping this angle of cut is a steady state value, at least its excursion is not too big.
The utility model is intended to solve above two problems: the one, and slurry is flowed by certain functional form; The one, keep stable alternate angle.
Utility model content
The purpose of this utility model is to provide a kind of abrasive disk of stuff grinder, to address the above problem.
In order to achieve the above object, the technical solution of the utility model is achieved in that
The utility model provides a kind of abrasive disk of stuff grinder, comprises the outskirt fluted disc, inner region fluted disc and the center fluted disc that are set gradually to center by mill outer rim;
Roll flute on described outskirt fluted disc, inner region fluted disc and center fluted disc is equiangular spiral shape; Starting from described outskirt fluted disc the shape that the multiple roll flutes to inner region fluted disc and center fluted disc correspondence position form continuously successively overlaps with the part track of equiangular spiral;
Rolling disc and fixed disk are in the time of relative motion at any time, and the value of the instantaneous alternate angle of formation is constant.
It should be noted that, slurry in defibrination district at least in the time entering defibrination district movement locus be to be spiral line type.
Preferably, increased gradually to outer rim roll flute width by mill center.
Compared with prior art, the advantage of the utility model embodiment is:
Analyze abrasive disk of stuff grinder structure known: when slurry enters defibrination district, itself there is certain initial velocity, enter behind defibrination district, move in a circle with mill, thus slurry in defibrination district at least in the time entering defibrination district movement locus be to be spiral line type (it has followed slurry by the mobile rule of certain functional form).The utility model roll flute adopts equiangular spiral type can effectively utilize the slurry characteristics of motion, makes slurry enter smoothly defibrination district, thereby improves stock inlet blockage, reduces energy loss, reduces spindle vibration, energy efficient.In addition, equiangular spiral type its mathematical property of arranging has determined that rolling disc and fixed disk are in the time of relative motion at any time, and the value of the instantaneous alternate angle of formation is constant.So, can ensure that roll flute cuts off ability and pulp quality.
Brief description of the drawings
The principle schematic at the one-tenth roll flute inclination angle of the abrasive disk of stuff grinder that Fig. 1 provides for the utility model embodiment;
The concept principle schematic diagram of the roll flute angle of cut of the abrasive disk of stuff grinder that Fig. 2 provides for the utility model embodiment;
The perspective view of the abrasive disk of stuff grinder that Fig. 3 provides for the utility model embodiment;
Fig. 4 is the plan structure schematic diagram of Fig. 5;
Fig. 5 is the partial side TV structure schematic diagram of Fig. 4.
Detailed description of the invention
Also by reference to the accompanying drawings the utility model is described in further detail below by specific embodiment.
Referring to Fig. 3, the utility model provides a kind of abrasive disk of stuff grinder, comprises the outskirt fluted disc 101 (being outskirt), inner region fluted disc 102 (being inner region) and the center fluted disc 103 that are set gradually to center by mill outer rim;
Roll flute on described outskirt fluted disc, inner region fluted disc and center fluted disc is equiangular spiral shape; Starting from described outskirt fluted disc the shape that the multiple roll flutes to inner region fluted disc and center fluted disc correspondence position form continuously successively overlaps with the part track of equiangular spiral;
Rolling disc and fixed disk are in the time of relative motion at any time, and the value of the instantaneous alternate angle of formation is constant.
It should be noted that, slurry in defibrination district at least in the time entering defibrination district movement locus be to be spiral line type.
Preferably, the groove between adjacent two roll flutes is teeth groove; The groove width of the interval teeth groove between two adjacent roll flutes can be reduced to outer rim gradually by mill center.
Preferably, between adjacent each fluted disc, be provided with slurry gear.
The concrete essence operation principle of the abrasive disk of stuff grinder below the utility model embodiment being provided is done and is described in detail:
Fig. 1, Fig. 2 have illustrated theoretical foundation of the present utility model.In figure, two circles are respectively the inner and outer boundary in Yi Gemo district.The part that between two circles, folded curve is equiangular spiral.Wherein: it should be noted that, the character of equiangular spiral is: the arbitrary line through initial point is crossing with equiangular spiral, its angle of cut equates (therefore its name) forever, gradient by name, this is also just in time the concept of roll flute gradient, therefore adopt equiangular spiral type tooth can obtain constant roll flute inclination angle.Illustrating: wherein 60 ° in Fig. 1 are the tangent line of helical and the angle of the radius of a circle that the center of circle is initial point, be the inclination angle of this helical, is also roll flute inclination angle.
As shown in Figure 2, Moving plate and price fixing roll flute intersect, and form the roll flute angle of cut.Due to the relative motion of moving price fixing, this angle of cut is only instantaneous alternate angle, again due to the distinctive character of equiangular spiral, causes this angle of cut to remain a normal value constant, and this is that other roll flutes of arranging are beyond one's reach.This value can with defibrination require difference and difference, therefore pulp quality stablize.Even if only have a mill to adopt this utility model, also can greatly dwindle the fluctuation of the roll flute angle of cut.
As Fig. 4, in order to increase the time of staying of slurry stream in defibrination district, strengthen making beating effect, between Ge Mo district, set up slurry gear 3, slurry gear can adopt the form of known technology, as circular arc, circular concentric etc.
Referring to Fig. 5 (center line that in Fig. 5, the dotted line of left-hand component signal is abrasive disk of stuff grinder), roll flute 1 is distributed on grinding disc substrate 4 according to certain rules, and the groove between two roll flutes is teeth groove 2.Slurry flows in teeth groove 2, and is subject to the interaction of the roll flute 1 on moving price fixing, comprises and grinds and cut off.Mill can divide several districts, the roll flute in each district can be identical also can be different, in the utility model, mill divides three concentric circular regions, the interval of tooth and groove can upwards reduce from inside to outside gradually in mill footpath.Difference of the present utility model is that each roll flute is a part for equiangular spiral, the center superposition of mill center and equiangular spiral.Therefore can obtain constant roll flute inclination angle.
Moving plate and price fixing roll flute intersect, and form the roll flute angle of cut.Due to the relative motion of moving price fixing, this angle of cut is only instantaneous alternate angle, again due to the distinctive character of equiangular spiral, causes this angle of cut to remain a normal value constant, and this is that other roll flutes of arranging are beyond one's reach.This value can with defibrination require difference and difference, therefore pulp quality stablize.
Even if only have a mill to adopt this utility model, also can greatly dwindle the fluctuation of the roll flute angle of cut.The quantity of above-mentioned mill is a kind of preferred structure mode in the utility model embodiment, and structure all and the utility model embodiment is close or similar, all should belong to protection domain of the present utility model fixed.
This example Fen Sangemo district, roll flute is equiangular spiral shape.Mill Qu Yeke selects one or two as required, and roll flute also can grind district's roll flute by part according to actual defibrination situation and make equiangular spiral shape.
When slurry enters defibrination district, itself there is certain initial velocity, enter behind defibrination district, move in a circle with mill, thus slurry in defibrination district at least in the time entering defibrination district movement locus be to be spiral line type.The utility model roll flute adopts equiangular spiral type can effectively utilize the slurry characteristics of motion, makes slurry enter smoothly defibrination district, thereby improves stock inlet blockage, reduces energy loss, reduces spindle vibration, energy efficient.
The abrasive disk of stuff grinder that the utility model embodiment provides has following characteristic:
Usually the characteristic of fluted disc depends on the factors such as flute profile, tapering and material.Flute profile refers to length, quantity, the thickness of tooth, the depth, width and the distribution of teeth groove, the layout of slurry shelves, the tapering of groove arrangement and distribution character and fluted disc etc.; The abrasive disk of stuff grinder that the utility model embodiment provides also has the characteristic of equiangular spiral profile of tooth simultaneously, starts from outskirt fluted disc the shape that the multiple roll flutes to inner region fluted disc and center fluted disc correspondence position form continuously successively and overlaps with the part track of equiangular spiral; Moving fixed millstone roll flute forms instantaneous alternate angle while intersecting to remain a normal value constant, and this is that other roll flutes of arranging are beyond one's reach, and keeps often value to have very important impact for roll flute cut-out ability and pulp quality.
The abrasive disk of stuff grinder that the utility model embodiment provides, its making beating ability is strong, pulp quality is better, production efficiency high (more stable), the radial distribution or the parallel distribution that have overcome existing roll flute make slurry cannot fully enter the technological deficiency of teeth groove, its roll flute drives slurry more easily fully to enter teeth groove along spiral trajectory operation, the problem of having avoided stock inlet to stop up.
The foregoing is only preferred embodiment of the present utility model, be not limited to the utility model, for a person skilled in the art, the utility model can have various modifications and variations.All within spirit of the present utility model and principle, any amendment of doing, be equal to replacement, improvement etc., within all should being included in protection domain of the present utility model.
Claims (2)
1. an abrasive disk of stuff grinder, is characterized in that,
Comprise the outskirt fluted disc, inner region fluted disc and the center fluted disc that are set gradually to center by mill outer rim;
Roll flute on described outskirt fluted disc, inner region fluted disc and center fluted disc is equiangular spiral shape; Starting from described outskirt fluted disc the shape that the multiple roll flutes to inner region fluted disc and center fluted disc correspondence position form continuously successively overlaps with the part track of equiangular spiral;
Rolling disc and fixed disk are in the time of relative motion at any time, and the value of the instantaneous alternate angle of formation is constant.
2. abrasive disk of stuff grinder as claimed in claim 1, is characterized in that,
Increased gradually to outer rim roll flute width by mill center.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420355954.XU CN203977221U (en) | 2014-06-30 | 2014-06-30 | A kind of abrasive disk of stuff grinder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420355954.XU CN203977221U (en) | 2014-06-30 | 2014-06-30 | A kind of abrasive disk of stuff grinder |
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| Publication Number | Publication Date |
|---|---|
| CN203977221U true CN203977221U (en) | 2014-12-03 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420355954.XU Expired - Fee Related CN203977221U (en) | 2014-06-30 | 2014-06-30 | A kind of abrasive disk of stuff grinder |
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| CN (1) | CN203977221U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108212319A (en) * | 2017-12-15 | 2018-06-29 | 安徽省颍上县雪黎面制品有限公司 | A kind of annular point band mill |
| CN108236988A (en) * | 2017-12-15 | 2018-07-03 | 安徽省颍上县雪黎面制品有限公司 | A kind of stone mill with staged flour milling |
| CN109826038A (en) * | 2019-04-04 | 2019-05-31 | 黄豪杰 | Fiberizer and its mill |
-
2014
- 2014-06-30 CN CN201420355954.XU patent/CN203977221U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108212319A (en) * | 2017-12-15 | 2018-06-29 | 安徽省颍上县雪黎面制品有限公司 | A kind of annular point band mill |
| CN108236988A (en) * | 2017-12-15 | 2018-07-03 | 安徽省颍上县雪黎面制品有限公司 | A kind of stone mill with staged flour milling |
| CN108212319B (en) * | 2017-12-15 | 2024-04-19 | 山西省平遥县五阳实业有限公司 | Annular belt-dividing millstone |
| CN109826038A (en) * | 2019-04-04 | 2019-05-31 | 黄豪杰 | Fiberizer and its mill |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20141203 Termination date: 20150630 |
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| EXPY | Termination of patent right or utility model |