CN109395818A - A kind of crusher - Google Patents
A kind of crusher Download PDFInfo
- Publication number
- CN109395818A CN109395818A CN201910004406.XA CN201910004406A CN109395818A CN 109395818 A CN109395818 A CN 109395818A CN 201910004406 A CN201910004406 A CN 201910004406A CN 109395818 A CN109395818 A CN 109395818A
- Authority
- CN
- China
- Prior art keywords
- lower roll
- emery wheel
- roller group
- roll
- diameter
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- 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.)
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C4/00—Crushing or disintegrating by roller mills
- B02C4/02—Crushing or disintegrating by roller mills with two or more rollers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C4/00—Crushing or disintegrating by roller mills
- B02C4/28—Details
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- Engineering & Computer Science (AREA)
- Food Science & Technology (AREA)
- Crushing And Grinding (AREA)
Abstract
The invention discloses a kind of crushers, including upper roller group and lower roller group, further include the modified correcting device of diameter for the lower roll to lower roller group.The application by increase correcting device the diameter of lower roll is modified, with solve because wear it is inconsistent caused by diameter different problems, by correcting device amendment can guarantee lower roll diameter it is consistent, improve adjust lower roll gap accuracy.
Description
Technical field
The present invention relates to the technical field of metallurgy, in particular to a kind of crushers.
Background technique
The bunker coal of sintering machine is very high to granularity requirements, it is necessary to which control is slightly carefully all unfavorable for very much very much between 1~3mm
The requirement of sintering process.Currently, the bunker coal of steel industry sintering process is broken using four-roller crusher.
Four-roller crusher is in one kind, fine crushing equipment, and the raw material for being widely used in metallurgical mine is broken, has structure tight
It gathers, takes up little area, the features such as reduction ratio is big, yield is higher.
Four-roller crusher is made of upper roller group and lower roller group, and such as Fig. 1, upper and lower roller group respectively has two rollers.Raw material is from upper roller
Group enters, and realizes that the first order is broken after upper roller group, referred to as just broken.Lower roller group is fallen into after just broken, realizes the by lower roller group
Two-stage crushing, referred to as thin broken.
The particle size after cracking of the upper and lower roller group of four-roller crusher depends on the roll gap of roller group, and the particle size after cracking of finished product depends on down
The roll gap of roller group.The roll gap of upper roller group is P, and the roll gap of lower roller group is δ (P >=δ).
But four-roller crusher is during the work time, and with the extension of operation duration, breaker roll can be worn, the roll gap of breaker roll
Become larger with the increase of breaker roll abrasion, becomes larger so as to cause particle size after cracking, so that particle size after cracking exceeds the range of qualified product.
Usual way is the spacing for adjusting breaker roll, it is made to meet roll gap requirement again.But in actual use, due to material along
Roller axis direction and non-uniform Distribution, but concentrate in the middle part of the roller of material dispensing, this has resulted in abrasion among roller
Degree is higher than two edges, and the abrasion for just obtaining breaker roll is in the shape of a saddle, and middle part abrasion is larger, and both ends abrasion is less or does not wear.Such as
Shown in Fig. 2, lower roller group roller diameter original value is D, and roll gap at this moment is δ, and diameter reduces that (roller is most to D2 after two lateral wearing of roller
Major diameter), diameter is reduced to D1 (roller minimum diameter) after the abrasion of middle part.At this moment seam increases to δ 1 and δ 2 respectively,δ 2 is similarly.In this case, the mode by adjusting roller distance between axles cannot
Roll gap caused by completion is solved the problems, such as because of abrasion increases.Because of the difference at the middle part of roller and the both ends degree of wear, if only
Consider the roll gap adjustment roll shaft spacing in the middle part of two rollers, the both ends that may result in two rollers collide；And if only considered
Both ends, then may result in middle part roll gap it is still excessive, do not reach requirement, affect roller gap adjustment accuracy.
Therefore, how a kind of crusher is provided, with improve roller gap adjustment accuracy, be those skilled in the art urgently
Technical problem to be solved.
Summary of the invention
In view of this, the purpose of the present invention is to provide a kind of crusher, to improve the accuracy of rod gap adjustment.
To achieve the above object, the invention provides the following technical scheme:
A kind of crusher, including upper roller group and lower roller group, further include:
The modified correcting device of diameter for the lower roll to the lower roller group.
Preferably, in above-mentioned crusher, the correcting device includes:
Emery wheel, the emery wheel and the lower roll are tangent；
Force piece, the force piece are connected with the emery wheel, and the emery wheel is driven to rotate；
Height adjustment device, the height adjustment device are connected with the force piece, adjust the position of the force piece.
Preferably, in above-mentioned crusher, the force piece is driving motor, and the main body of the driving motor is fixed on institute
It states on height adjustment device, the emery wheel is set on the output shaft of the driving motor.
Preferably, in above-mentioned crusher, the height adjustment device is hydraulic cylinder, and the force piece is fixed on the liquid
On the hydraulic stem of cylinder pressure.
Preferably, in above-mentioned crusher, the distance that the hydraulic cylinder needs to move is dy1,
Wherein, the diameter of the emery wheel is d；Initial unworn lower roller diameter is D；
The lower roll needs to be ground to the minimum D1 of diameter；The axle center of lower roll is motionless, the axle center of the emery wheel and lower roll
The horizontal distance in axle center is x.
Preferably, in above-mentioned crusher, the correcting device and the lower roll are corresponded, and the correcting device closes
It is arranged symmetrically in the symmetry axis of two lower rolls, and the axle center of two lower rolls is respectively positioned on the mill of two correcting devices
Between the axle center of wheel.
Preferably, in above-mentioned crusher, the upper roller of the upper roller group is mounted on the rack by upper roll shaft.
Preferably, in above-mentioned crusher, the lower roll of the lower roller group is mounted on the rack by lower roller shaft, and it is described under
Distance is adjustable between the lower roll of roller group.
As can be seen from the above technical solutions, a kind of crusher disclosed in this invention, including upper roller group and lower roller group,
It further include the modified correcting device of diameter for the lower roll to lower roller group.The application is by increasing correcting device to the straight of lower roll
Diameter is modified, with solve because wear it is inconsistent caused by diameter different problems, under can guarantee by the amendment of correcting device
The diameter of roller is consistent, improves the accuracy for adjusting lower roll gap.
Detailed description of the invention
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, below to embodiment or existing
Attached drawing needed in technical description is briefly described, it is clear that, the accompanying drawings in the following description is only this hair
Bright embodiment for those of ordinary skill in the art without creative efforts, can also be according to mentioning
The attached drawing of confession obtains other attached drawings.
Fig. 1 is the theory structure schematic diagram of crusher disclosed in prior embodiment；
Fig. 2 is the structural schematic diagram after the lower roll abrasion of crusher disclosed in prior embodiment；
Fig. 3 is the structural schematic diagram of crusher disclosed in the embodiment of the present invention；
Fig. 4 is the modified structural schematic diagram of lower roll of crusher disclosed in the embodiment of the present invention；
Fig. 5 is the amendment size relationship figure of crusher disclosed in the embodiment of the present invention.
Specific embodiment
In view of this, core of the invention is to provide a kind of crusher, to improve the accuracy of rod gap adjustment.
In order to enable those skilled in the art to better understand the solution of the present invention, with reference to the accompanying drawings and detailed description
The present invention is described in further detail.
It as shown in Figure 3-Figure 5, further include being used for the invention discloses a kind of crusher, including upper roller group and lower roller group
To the modified correcting device of diameter of the lower roll 3 of lower roller group.Wherein, the upper roller 1 of upper roller group is used for First Extrusion material, then again
Material after will be rough and torn is delivered to lower roll and carries out thin broken.Since the gap of lower roll 3 determines the size of particle size after cracking,
The gap of lower roll 3 can be only adjusted when adjusting, in consideration of it, can be only to the straight of lower roll 3 in the gap adjustment to lower roll 3 in the application
Diameter is modified, and therefore, the application is provided with the correcting device being modified to the lower roll 3 of lower roller group.By increasing amendment dress
Set and the diameter of lower roll 3 be modified, with solve because wear it is inconsistent caused by diameter different problems, pass through correcting device
It corrects and can guarantee that the diameter of lower roll 3 is consistent, improve the accuracy for adjusting 3 gap of lower roll.
Correcting device in the application includes emery wheel 5, force piece and height adjustment device.Wherein, emery wheel 5 and 3 phase of lower roll
It cuts, is modified with the diameter to lower roll 3, force piece is connected with emery wheel 5, and emery wheel 5 is driven to rotate；And above-mentioned height adjustment
Device is connected with force piece, to adjust the position of force piece.When needing to be modified lower roll 3, can be filled by height adjustment
The height for adjusting force piece and emery wheel 5 is set, to change the axle center of emery wheel 5 with 3 axle center of lower roll at a distance from, so that realization is to lower roll
The amendment of 3 diameters.
In specific embodiment, above-mentioned force piece is driving motor 6, and the main body of driving motor 6 is fixed on height and adjusts
On regulating device, and emery wheel 5 is set on the output shaft of driving motor 6.Disclosed herein is a kind of specific structures of force piece, in reality
Other dynamic structures driving emery wheel 5 can also be used in border to rotate, and in protection scope.
In addition the height adjustment device in the application is hydraulic cylinder 7, and above-mentioned force piece is fixed on the liquid of hydraulic cylinder 7
On compression bar 8.When needing to adjust the position of emery wheel 5, can driving hydraulic cylinder 7, extend the hydraulic stem 8 of hydraulic cylinder 7, reach adjusting
With hydraulic stem 8 be connected emery wheel 5 relative to lower roll 3 at a distance from.A kind of structure of height adjustment device is provided only herein, is used
Hydraulic cylinder 7 can realize that mechanization simplifies the labor intensity of operator, can also be needed in practice according to different using other kinds
The height adjustment device of class, and in protection scope.
In further embodiment, as shown in Fig. 2, when original state, 5 axle center of emery wheel that diameter is d and unworn straight
Diameter is that the lower roll 3 of D is tangent, and two axle center distance is L=D+d at this time.After a period of time, lower roll 3 because abrasion is uneven, need by
Lower roll 3 is ground to its diameter minimum value D1, due to first not adjusting the position roll shaft heart O1, so the axis of emery wheel 5 axle center O3 and lower roll 3
Heart horizontal distance x is constant, on vertical direction 5 axle center O3 of emery wheel by the movement of hydraulic system, moving distance dy1 be by O3 extremely
O3 ', emery wheel 5 and the revised lower roll 3 that diameter is D1 are tangent.At this time at a distance from the axle center of both emery wheel 5 and lower rolls 3 for L '=
D1+d.Then hydraulic cylinder 7 needs the distance moved
Based on the above technical solution, the upper roller 1 of the upper roller group in the application is mounted on rack 2 by upper roll shaft 9
On.In order to simplify structure and reduce cost, set the upper roller 3 of upper roller group to apart from uncontrollable structure, but this field
Technical staff it is understood that can also be set as needed corresponding with upper roller 1 and for the diameter of upper roller 1 in practice
Modified correcting device.
In order to guarantee that material corresponds correcting device and lower roll 3 from the gap discharge between lower roll 3, the application,
I.e. each correcting device corrects a lower roll 3, and correcting device is arranged symmetrically about the symmetry axis of two lower rolls 3, with convenient
Two correcting devices, which can synchronize, is modified corresponding lower roll 3.The axle center of above-mentioned lower roll 3 is respectively positioned on two emery wheels 5
Between axle center, to guarantee gap between emery wheel 5, prevent correcting device from influencing the discharge of material.
Based on the above technical solution, the lower roll 3 of above-mentioned lower roller group is mounted in rack 2 by lower roller shaft 4, and
And distance is adjustable between the lower roll 3 of lower roller group.By the gap adjustment between lower roll 3, to guarantee the granularity of material.
Each embodiment in this specification is described in a progressive manner, the highlights of each of the examples are with other
The difference of embodiment, the same or similar parts in each embodiment may refer to each other.
The foregoing description of the disclosed embodiments enables those skilled in the art to implement or use the present invention.
Various modifications to these embodiments will be readily apparent to those skilled in the art, as defined herein
General Principle can be realized in other embodiments without departing from the spirit or scope of the present invention.Therefore, of the invention
It is not intended to be limited to the embodiments shown herein, and is to fit to and the principles and novel features disclosed herein phase one
The widest scope of cause.
Claims (8)
1. a kind of crusher, including upper roller group and lower roller group, which is characterized in that further include:
The modified correcting device of diameter for the lower roll (3) to the lower roller group.
2. crusher according to claim 1, which is characterized in that the correcting device includes:
Emery wheel (5), the emery wheel (5) and the lower roll (3) are tangent；
Force piece, the force piece are connected with the emery wheel (5), and the emery wheel (5) is driven to rotate；
Height adjustment device, the height adjustment device are connected with the force piece, adjust the position of the force piece.
3. crusher according to claim 2, which is characterized in that the force piece is driving motor (6), the driving electricity
The main body of machine (6) is fixed on the height adjustment device, and the emery wheel (5) is set in the output shaft of the driving motor (6)
On.
4. crusher according to claim 3, which is characterized in that the height adjustment device is hydraulic cylinder (7), described dynamic
Power part is fixed on the hydraulic stem (8) of the hydraulic cylinder (7).
5. crusher according to claim 4, which is characterized in that the distance that the hydraulic cylinder (7) needs to move is dy1,
Wherein, the diameter of the emery wheel (5) is d；Initial unworn lower roll (3) diameter is D；
The lower roll (3) needs to be ground to the minimum D1 of diameter；The axle center of lower roll (3) is motionless, and the axle center of the emery wheel (5) is under
The horizontal distance in the axle center of roller is x.
6. crusher according to claim 3, which is characterized in that the correcting device and the lower roll (3) correspond,
And the correcting device is arranged symmetrically about the symmetry axis of two lower rolls (3), and the equal position in axle center of two lower rolls (3)
Between the axle center of the emery wheel (5) of two correcting devices.
7. crusher according to claim 1-6, which is characterized in that the upper roller (1) of the upper roller group passes through upper
Roll shaft (9) is mounted on rack (2).
8. crusher according to claim 1-6, which is characterized in that under the lower roll (3) of the lower roller group passes through
Roll shaft (4) is mounted on rack (2), and distance is adjustable between the lower roll (3) of the lower roller group.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910004406.XA CN109395818A (en) | 2019-01-03 | 2019-01-03 | A kind of crusher |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910004406.XA CN109395818A (en) | 2019-01-03 | 2019-01-03 | A kind of crusher |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109395818A true CN109395818A (en) | 2019-03-01 |
Family
ID=65461918
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910004406.XA Pending CN109395818A (en) | 2019-01-03 | 2019-01-03 | A kind of crusher |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109395818A (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2796827Y (en) * | 2004-12-24 | 2006-07-19 | 上海建设路桥机械设备有限公司 | Tetra roller crushor |
| CN202983758U (en) * | 2012-06-12 | 2013-06-12 | 广东巨大重型机械有限公司 | Four-roller crusher |
| CN104669079A (en) * | 2013-11-28 | 2015-06-03 | 张弘 | Circular arc surface edge grinding device of cylindrical component |
| CN104772187A (en) * | 2015-03-30 | 2015-07-15 | 南京梅山冶金发展有限公司 | Control method for automatic adjusting of roller gap of four-roller crusher |
| CN204935387U (en) * | 2015-08-31 | 2016-01-06 | 青岛泰德汽车轴承股份有限公司 | Centreless grinding wheel trimming device |
| CN105500130A (en) * | 2016-01-19 | 2016-04-20 | 广东赛因迪科技股份有限公司 | Double-roll machine roller repair method and device |
| JP2017209771A (en) * | 2016-05-27 | 2017-11-30 | ミクロン精密株式会社 | Centerless grinder and control method for the same |
-
2019
- 2019-01-03 CN CN201910004406.XA patent/CN109395818A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2796827Y (en) * | 2004-12-24 | 2006-07-19 | 上海建设路桥机械设备有限公司 | Tetra roller crushor |
| CN202983758U (en) * | 2012-06-12 | 2013-06-12 | 广东巨大重型机械有限公司 | Four-roller crusher |
| CN104669079A (en) * | 2013-11-28 | 2015-06-03 | 张弘 | Circular arc surface edge grinding device of cylindrical component |
| CN104772187A (en) * | 2015-03-30 | 2015-07-15 | 南京梅山冶金发展有限公司 | Control method for automatic adjusting of roller gap of four-roller crusher |
| CN204935387U (en) * | 2015-08-31 | 2016-01-06 | 青岛泰德汽车轴承股份有限公司 | Centreless grinding wheel trimming device |
| CN105500130A (en) * | 2016-01-19 | 2016-04-20 | 广东赛因迪科技股份有限公司 | Double-roll machine roller repair method and device |
| JP2017209771A (en) * | 2016-05-27 | 2017-11-30 | ミクロン精密株式会社 | Centerless grinder and control method for the same |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20190301 |