CN109675666A - A kind of crusher - Google Patents
A kind of crusher Download PDFInfo
- Publication number
- CN109675666A CN109675666A CN201910004399.3A CN201910004399A CN109675666A CN 109675666 A CN109675666 A CN 109675666A CN 201910004399 A CN201910004399 A CN 201910004399A CN 109675666 A CN109675666 A CN 109675666A
- Authority
- CN
- China
- Prior art keywords
- rotating shaft
- shaft holder
- roller group
- roll
- actuator
- 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.)
- Pending
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Classifications
-
- 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
- B02C4/32—Adjusting, applying pressure to, or controlling the distance between, milling members
-
- 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
- B02C4/42—Driving mechanisms; Roller speed control
- B02C4/423—Driving mechanisms; Roller speed control with vibrating or oscillating mechanisms
Landscapes
- 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 includes: rotating shaft holder, the lower roll of the lower roller group are eccentrically mounted at respectively on the rotating shaft holder；Actuator, the actuator are connect with the rotating shaft holder, and the actuator can drive the rotating shaft holder to rotate to lower roll direction close to each other.Since rotating shaft holder is controlled by corresponding actuator respectively, self contained function is realized, therefore can realize that roll gap continuously adjusts in adjustable range.
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.
As shown in Fig. 2, lower roller group roller diameter original value is D, roll gap at this moment is δ, and diameter is reduced to D1 after roll wear, at this moment
Seam increases to δ 1,Roll gap increases so as to cause the increase of granularity degree, exceeds acceptability limit.It wants
So that particle size after cracking is turned again to qualified particle size range, needs to adjust the roll gap of breaker roll.Since the abrasion of breaker roll is gradually
The dynamic process become just must be adjusted continuously therefore, for the particle size after cracking of four-roller crusher meets granularity requirements steadily in the long term
The roll gap of whole breaker roll.
Therefore, how to provide a kind of crusher, it can be achieved that continuously adjusting the roll gap of crusher, 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, it can be achieved that continuously adjusting the roll gap of crusher.
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 lower roll of rotating shaft holder, the lower roller group is eccentrically mounted on the rotating shaft holder；
Actuator, the actuator are connect with the rotating shaft holder, and the actuator can drive the rotating shaft holder
Rotation rotates the lower roll of the lower roller group to direction close to each other.
Preferably, in above-mentioned crusher, the lower roll of the lower roller group is mounted on the rotating shaft holder by lower roller shaft
On.
Preferably, in above-mentioned crusher, the rotating shaft holder is mounted on the rack.
Preferably, in above-mentioned crusher, the actuator includes: swing arm, the swing arm and the rotating shaft holder
Rotating part is fixedly connected；
Hydraulic cylinder, the hydraulic push rod of the hydraulic cylinder and the swing arm are hinged.
Preferably, in above-mentioned crusher, the actuator includes: hydraulic cylinder；
Driving wheel, the driving wheel are rotated by the Driven by Hydraulic Cylinder；
Driven wheel, the driven wheel are engaged with the driving wheel, and the driven wheel fixation is set in the rotating shaft holder
Outside.
Preferably, in above-mentioned crusher, the rotational angle range of the rotating shaft holder is 0 ° -90 °.
Preferably, in above-mentioned crusher, the upper roller of the upper roller group is rotatably installed on roll shaft, and the upper roll shaft is solid
Surely it is mounted on the rack.
Preferably, in above-mentioned crusher, the rotating shaft holder is two, and the rotating shaft holder and the lower roll
It corresponds, two rotating shaft holder rotation directions are opposite.
It preferably, further include the detection device for detecting gap size between the lower roll in above-mentioned crusher, and
The actuator work is controlled when gap is greater than preset value.
It preferably, further include the limiting device for limiting gap between the lower roll, when described in above-mentioned crusher
After lower roll is contacted with the limiting device, the actuator stops working.
As can be seen from the above technical solutions, a kind of electricity disclosed in this invention drives shift executive device, including successively passes
Motor, retarder and the shifting shaft of dynamic connection, further include: the first one-way clutch, the second one-way clutch, the first shift
Drum, the second shift drum, the first shift fork and the second shift fork.By two one-way clutch of setting in the application, and unidirectionally by two
The transmitting power direction of clutch is reversed, it is ensured that in motor driven, only an one-way clutch can be transmitted dynamic
Power, i.e., only a shift fork can act, and then realize different gear switchings, since the first shift fork and the second shift fork are respectively by right
The gear shift drum control answered, realizes self contained function, therefore can realize a variety of position groupings, that is, realizes more gear.Due to only making
With a motor and a retarder, whole system is at low cost, space is small, flexible arrangement.Due to rotating shaft holder respectively by
Corresponding actuator control, realizes self contained function, therefore can realize that roll gap continuously adjusts in adjustable range.
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 structural schematic diagram of crusher disclosed in prior embodiment；
Lower roll gap size relational graph when Fig. 2 is crusher initial shape body disclosed in prior embodiment；
Fig. 3 is the procedure chart of the lower roll rotation of crusher disclosed in the embodiment of the present invention；
Fig. 4 is the structural schematic diagram of crusher disclosed in the embodiment of the present invention；
Fig. 5 is the structural schematic diagram of the lower roll rotation of crusher disclosed in the embodiment of the present invention；
Fig. 6 is the mobile distance map of the lower roll of crusher disclosed in the embodiment of the present invention；
Fig. 7 is lower roll gap size relational graph after crusher disclosed in the embodiment of the present invention is mobile.
Specific embodiment
In view of this, core of the invention is to provide a kind of crusher, to realize the roll gap for continuously adjusting crusher.
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.
As shown in Fig. 3-Fig. 7, it to further include rotation that the invention discloses a kind of crushers, including upper roller group and lower roller group
Bearing block 5 and actuator, wherein the lower roll 3 of above-mentioned lower roller group is eccentrically mounted at respectively on a rotating shaft holder 5, and is driven
Moving part is connected with rotating shaft holder 5, and rotating shaft holder 5 is driven to rotate to the direction close to each other of lower roll 3.Pass through in the application
Increase rotating shaft holder 5, and lower roll 3 is eccentrically mounted, when actuator driving rotating shaft holder 5 rotates, will drive 3 turns of lower roll
It is dynamic, to change the gap between lower roll 3, achieve the purpose that adjust gap.It, can and due to 5 continuous rotation of rotating shaft holder
Guarantee that the Connexin between lower roll 3 is adjusted, which can not need crusher shutdown can be completed lower roll 3 at work
The adjusting in gap.
The lower roll 3 of lower roller group in the application in crusher is mounted on rotating shaft holder 5 by lower roller shaft 4.Under
The installation of roll shaft 4 can guarantee that lower roll 3 is rotated around lower roller shaft 4, complete the attrition crushing to material.Specifically, the lower roller shaft 4 is opposite
The position of 4 horizontal direction of lower roller shaft is adjusted when rotating shaft holder 5 rotates in the center arranged off-centre of the rotating shaft holder 5
It sets.
In specific embodiment, above-mentioned rotating shaft holder 5 is mounted in rack 2.Disclosed herein is a kind of swivel bearings
The installation site of seat 5 can also need to install according to other position of rotating shaft holder 5 in practice.For rotating shaft holder 5
Size and lower roller shaft 4 installation site, can be set by actual needs, and in protection scope.
In preferred embodiment, above-mentioned actuator includes swing arm 8 and hydraulic cylinder 6, wherein swing arm 8 and rotating shaft holder 5
Rotating part be fixedly connected；And the hydraulic push rod 7 of hydraulic cylinder 6 and swing arm 8 are hinged.Using the driving of hydraulic cylinder 6 and hydraulic push rod 7
Mode is, it can be achieved that the rotating part of rotating shaft holder 5 gradually rotates, and can be stably maintained at a certain position.
In another embodiment, above-mentioned actuator further includes hydraulic cylinder, driving wheel and driven wheel, wherein driving wheel by
Driven by Hydraulic Cylinder rotation, and engaged from moving in turn with driving wheel, the driven wheel is fixed to be set in 5 outside of rotating shaft holder.When work,
Hydraulic cylinder starting drives driving wheel rotation, and then drives the driven wheel rotation engaged with driving wheel, due to driven wheel and rotary shaft
It holds seat 5 to be fixedly connected, therefore, it is ensured that rotating shaft holder 5 rotates synchronously, and realizes the adjusting of 3 position of lower roll.
Disclosed herein is the specific structures of two kinds of actuators, in practice, can be realized what driving rotating shaft holder 5 rotated
Mode is in protection scope.
The rotational angle range of rotating shaft holder 5 disclosed herein is 0 ° -90 °.By Fig. 5 and Fig. 6 it is found that lower roller group
Lower roller shaft 4 when being moved to B ' from B point and putting, the displacement of the horizontal direction of lower roller shaft 4 is dx, and the displacement of vertical direction is
Dy, as shown in Figure 5, the motion profile of B point are the circle that radius is R.It is not difficult to calculate:Due under
The variation of 4 position of roll shaft is transmitted to lower roller group, so that lower roller group roll gap changes.Due to the position of the lower roller shaft 4 of lower roller group
Lower roller group roll gap variation relation such as Fig. 7, is not difficult to calculate, two lower roll 3 in ensuring lower roller group in conjunction with Fig. 6 and Fig. 7 caused by changing
Under the premise of symmetrical adjustment, the dynamical roll gap X of roller group at any one time are as follows: x=(D-D1)+δ -2dx.Ensure four-roller crusher at
The constant condition of product granularity is: x=δ, the control condition that this condition is also used as product grading constant.
The maximum amount of movement of present invention change roll gap four-roller crusher unilateral side roller axis are as follows:So roll gap
Maximal regulated amount are as follows:R is the radius of the mobile trace in roller group axle center.
Based on the above technical solution, the upper roller 1 of upper roller group is rotatably installed on roll shaft 9, and upper roll shaft 9 is fixed
Be mounted in rack 2, i.e., the application only by adusting lower roller group spacing, to guarantee the granularity of finished product.
Specifically, rotating shaft holder 5 is two, and rotating shaft holder 5 and lower roll 3 are corresponded and are arranged, two rotations
5 rotation direction of bearing block is opposite.Specifically, two rotating shaft holders 5 are arranged side by side, and each rotating shaft holder 5 corresponding one
A actuator when needing to adjust gap, starts two actuators, and corresponding rotating shaft holder 5 is driven to rotate, and two rotary shafts
Hold the rotation direction of seat 5 on the contrary, and rotated towards the direction close to each other of lower roll 3, between changing between two lower rolls 3
Gap.
In order to realize automation, breakage device in practice further includes the detection for detecting gap size between lower roll 3
Device, and the control actuator work when gap is greater than preset value.Detect that the gap between two lower rolls 3 is big in detection device
When preset value, actuator can be started, to adjust the distance between lower roll 3.For being wanted according to product grading for preset value
It asks and is set.
Further include the limiting device for limiting gap between lower roll 3 in further embodiment, and when lower roll 3 with
After limiting device contact, actuator stops working, to prevent gap too small.It ensure that lower roll by limiting device and detection device
Gap is of the required size between 3.
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 (10)
1. a kind of crusher, including upper roller group and lower roller group, which is characterized in that further include:
The lower roll (3) of rotating shaft holder (5), the lower roller group is eccentrically mounted on the rotating shaft holder (5)；
Actuator, the actuator are connect with the rotating shaft holder (5), and the actuator can drive the rotating shaft holder
(5) it rotates, rotates the lower roll (3) of the lower roller group to direction close to each other.
2. crusher according to claim 1, which is characterized in that the lower roll (3) of the lower roller group is pacified by lower roller shaft (4)
On the rotating shaft holder (5).
3. crusher according to claim 2, which is characterized in that the rotating shaft holder (5) is mounted on rack (2).
4. crusher according to claim 1, which is characterized in that the actuator includes: swing arm (8), the swing arm (8)
It is fixedly connected with the center of the rotating shaft holder (5)；
Hydraulic cylinder (6), the hydraulic push rod (7) of the hydraulic cylinder (6) and the swing arm (8) are hinged.
5. crusher according to claim 1, which is characterized in that the actuator includes: hydraulic cylinder；
Driving wheel, the driving wheel are rotated by the Driven by Hydraulic Cylinder；
Driven wheel, the driven wheel are engaged with the driving wheel, and the driven wheel fixation is set in the rotating shaft holder (5) outside
Side.
6. crusher according to claim 1-5, which is characterized in that the angle of rotation of the rotating shaft holder (5)
Spending range is 0 ° -90 °.
7. crusher according to claim 1-5, which is characterized in that the upper roller (1) of the upper roller group rotates peace
On upper roll shaft (9), the upper roll shaft (9) is fixedly mounted on rack (2).
8. crusher according to claim 1, which is characterized in that the rotating shaft holder (5) is two, and the rotation
Bearing block (5) and the lower roll (3) correspond, and two rotating shaft holder (5) rotation directions are opposite.
9. crusher according to claim 1-5, which is characterized in that further include for detecting the lower roll (3)
Between gap size detection device, and actuator work is controlled when gap is greater than preset value.
10. crusher according to claim 9, which is characterized in that further include for limiting gap between the lower roll (3)
Limiting device, after the lower roll (3) and the limiting device contact, the actuator stops working.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910004399.3A CN109675666A (en) | 2019-01-03 | 2019-01-03 | A kind of crusher |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910004399.3A CN109675666A (en) | 2019-01-03 | 2019-01-03 | A kind of crusher |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109675666A true CN109675666A (en) | 2019-04-26 |
Family
ID=66191898
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910004399.3A Pending CN109675666A (en) | 2019-01-03 | 2019-01-03 | A kind of crusher |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109675666A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111940036A (en) * | 2020-08-10 | 2020-11-17 | 武汉工程大学 | Corrugated board crushing and recycling machine |
| CN112774781A (en) * | 2020-12-09 | 2021-05-11 | 上海铸研重工科技有限公司 | Swing roller type sand making machine |
Citations (6)
| 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 |
| CN103752370A (en) * | 2014-01-26 | 2014-04-30 | 上海建冶路桥机器设备有限公司 | Energy-saving roller type grading machine |
| AT515361A1 (en) * | 2014-01-27 | 2015-08-15 | Feiba Engineering & Plants Gmbh | Roller mill, in particular for comminution of dry ice pellets |
| CN105498896A (en) * | 2016-01-06 | 2016-04-20 | 常州市龙鑫化工机械有限公司 | Roller press with gaps and pressure among rollers adjustable |
| CN108576915A (en) * | 2018-07-06 | 2018-09-28 | 河南省新之林机电设备有限公司 | The high precision roller lash adjusting device of thin slice chopping fold former |
| CN208203820U (en) * | 2018-05-25 | 2018-12-07 | 肥乡县佳鑫机械制造有限公司 | A kind of eccentric bushing bearing seat for double-roll crusher |
-
2019
- 2019-01-03 CN CN201910004399.3A patent/CN109675666A/en active Pending
Patent Citations (6)
| 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 |
| CN103752370A (en) * | 2014-01-26 | 2014-04-30 | 上海建冶路桥机器设备有限公司 | Energy-saving roller type grading machine |
| AT515361A1 (en) * | 2014-01-27 | 2015-08-15 | Feiba Engineering & Plants Gmbh | Roller mill, in particular for comminution of dry ice pellets |
| CN105498896A (en) * | 2016-01-06 | 2016-04-20 | 常州市龙鑫化工机械有限公司 | Roller press with gaps and pressure among rollers adjustable |
| CN208203820U (en) * | 2018-05-25 | 2018-12-07 | 肥乡县佳鑫机械制造有限公司 | A kind of eccentric bushing bearing seat for double-roll crusher |
| CN108576915A (en) * | 2018-07-06 | 2018-09-28 | 河南省新之林机电设备有限公司 | The high precision roller lash adjusting device of thin slice chopping fold former |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111940036A (en) * | 2020-08-10 | 2020-11-17 | 武汉工程大学 | Corrugated board crushing and recycling machine |
| CN112774781A (en) * | 2020-12-09 | 2021-05-11 | 上海铸研重工科技有限公司 | Swing roller type sand making machine |
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|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
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| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20190426 |