CN110270412A - A kind of vertical grinding roll cover - Google Patents
A kind of vertical grinding roll cover Download PDFInfo
- Publication number
- CN110270412A CN110270412A CN201910641582.4A CN201910641582A CN110270412A CN 110270412 A CN110270412 A CN 110270412A CN 201910641582 A CN201910641582 A CN 201910641582A CN 110270412 A CN110270412 A CN 110270412A
- Authority
- CN
- China
- Prior art keywords
- taper sheath
- buffer board
- taper
- roller
- sheath
- 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.)
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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
- B02C15/00—Disintegrating by milling members in the form of rollers or balls co-operating with rings or discs
- B02C15/004—Shape or construction of rollers or balls
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- Engineering & Computer Science (AREA)
- Food Science & Technology (AREA)
- Packaging Of Machine Parts And Wound Products (AREA)
- Crushing And Grinding (AREA)
Abstract
The invention belongs to rollers to cover field, specifically a kind of vertical grinding roll cover, including grinding roller, taper sheath and flanged plate；The flanged plate is connected in the biggish one end of taper sheath diameter, and the flange on the outside of taper sheath is also provided with the connecting hole connecting with grinding roller；The taper sheath is socketed on roll shaft, and taper sheath is made of half roller set of two double of settings；It is connected between the two half roller sets by the connecting plate that end is provided with, and is socketed with fixed ring on the taper sheath outer ring being combined into；The contact surface of the taper sheath and roller set is equipped with elastic ring；It is the configuration of the present invention is simple, easy to use, and by elastic ring and the set cooperation of two halves roller, to avoid hot-fluid impact that bolt is caused to loosen to being sealed inside taper sheath, taper jacket outer surface is protected using buffer board simultaneously, improves the service life of taper sheath entirety.
Description
Technical field
The invention belongs to rollers to cover field, specifically a kind of vertical grinding roll cover.
Background technique
Vertical Mill is a kind of large-scale milling equipment, is widely used in the industries such as cement, electric power, metallurgy, chemical industry, nonmetallic ore,
It collects broken, drying, grinding, classification are transported in one, and bulk, graininess and powder raw material can be worn into institute by high production efficiency
It is required that granular material.When vertical mill works, material to be ground is fallen in mill by the percussion of gravity and air-flow
Material is uniformly distributed horizontally on mill by centre, the mill of constant speed rotary, and grinding roller bites material and pulverizes it, in centrifugal force
Under the action of smashed material from getting rid of the material for leaving mill to the edge of mill high speed under the drive of hot wind in the middle part of mill
It is moved upwards by vane.During material moves upwards, by necessarily being caused to grinding roller and grinding roller shaft surface when grinding roller
Abrasion is washed away, grinding roller and grinding roller shaft are damaged, production operation is seriously affected；And maintenance, replacement after Vertical Mill damage
Again extremely onerous, replacing construction is long, labor intensity of workers is big, causes very big inconvenience to production work, increase maintenance cost and
The repair time of equipment increases the production cost of enterprise, affects the economic benefit of enterprise.
In the prior art, to extend grinding roller service life, roller surface is generally bolted detachable and interchangeable
Loudspeaker set can re-replace after loudspeaker set abrasion for protecting grinding roller and grinding roller shaft.Due to loudspeaker noose in the prior art
Structure design is unreasonable, cannot accomplish the protection of gamut to grinding roller and grinding roller shaft, in production practice, ask there are following
Topic: loudspeaker set is usually monoblock type, and maintenance replacement trouble, not only wasted time but also increased labor intensity after abrasion；Due to loudspeaker
Set outer surface does not have any protective equipment, and material is directly contacted with loudspeaker set surface when grinding roller operates, and impact force is very
Greatly, meeting excessive wear loudspeaker set causes loudspeaker to cover premature failure；It is larger in the loudspeaker set opening taper of the prior art, with object
The hot-air flow of material can cover surface refraction deflecting along loudspeaker, cover inside into loudspeaker, cause to wash away abrasion to grinding roller shaft, rise
Less than protective effect；Material covers with the connection bolt impact force of grinding roller junction very loudspeaker under the drive of hot-air flow
Greatly, bolt looseness is not only resulted in, the time, which has been grown, can also make the head for connecting bolt abrasion or even polish completely, and seriously affecting makes
With the service life, accordingly, the invention proposes a kind of vertical grinding roll covers.
Summary of the invention
In order to make up for the deficiencies of the prior art, the invention proposes a kind of vertical grinding roll covers, and structure is simple, easy to use,
And by elastic ring and the set cooperation of two halves roller, to avoid hot-fluid impact from causing bolt loose to being sealed inside taper sheath
It is de-, while taper jacket outer surface is protected using buffer board, improve the service life of taper sheath entirety.
The technical solution adopted by the present invention to solve the technical problems is: a kind of vertical grinding roll cover, including grinding roller, taper sheath
And flanged plate；The flanged plate is connected in the biggish one end of taper sheath diameter, the flange on the outside of taper sheath be also provided with
The connecting hole of grinding roller connection；The taper sheath is socketed on roll shaft, and taper sheath is made of half roller set of two double of settings；Two
It is connected between the half roller set by the connecting plate that end is provided with, and is socketed with fixation on the taper sheath outer ring being combined into
Ring；The contact surface of the taper sheath and roller set is equipped with elastic ring；Existing roller set during the work time usually can directly with
Material contact is substantially reduced by the direct service life for causing roller to cover of hitting of material, so, the technical program will be by that will bore
Centroid sheath covers composition using half roller half-and-half, and two halves roller set is directly connected using bolt by symmetrical connecting plate, while
Two opposite elastic rings are added between taper sheath and grinding roller, the both ends of elastic ring are located at the crevice place between half roller set, then
The taper sheath combined is fixed using fixed ring, elastic ring can deform under the extruding of fixed ring, thus to two
Seam crossing between half roller set is buffered, while convenient for slightly expanding with heat and contract with cold caused by the variation of roller sleeving temperature, so that two halves roller
What is connected between set is even closer, avoids hot-fluid impact that bolt is caused to loosen, and then improve the service life of taper sheath entirety.
Preferably, the fixed ring is fixed by screws in the outer surface of taper sheath；It is set between the adjacent fixed ring
It is equipped with a circle buffer board；The buffer board is hinged on taper jacket outer surface, and buffer board protects taper for buffering material
The impact of set；The taper sheath combined is secured using fixed ring, but under the biggish percussion of material, taper sheath
Still it can therefore damage faster, so enclosing buffer board by the addition one between adjacent fixed ring, buffer board is hinged on cone
On shape jacket outer surface, buffer board can connect two fixed rings, so that the integral strength of fixed ring enhances, simultaneous buffering plate also can be right
Material is buffered, and changes the motion track of a part of material at random, is reduced material and is directly hit taper jacket surface, to make
Obtain the service life that itself is further increased while taper sheath possesses more preferable protection grinding roller.
Preferably, the buffer board is obliquely installed, and adjacent buffer plate end is in contact and forms 30~60 ° of folder
Angle is fixed with connecting spring between the buffer board that both ends are not in contact；The connecting spring is for being supported buffer board；
Since buffer board is hinged on taper jacket outer surface, certain swing can be generated when buffering is by material impacting, is delayed by making
Punching is obliquely installed, and can preferably be changed material impacting angle in material impacting, carried out better buffering, and at both ends
It is fixed with connecting spring between the buffer board that portion is not in contact, so that two buffer boards are propped up under the action of connecting spring
Support, and then guarantee that buffer board only can be to another side oscillation, and contact with other buffer board end and to form 30~60 ° of angle,
So that material can change direction when hitting the angle of buffer board and impact connecting spring, subsequent connecting spring will do it secondary slow
Punching, improves whole buffering effect, further increases the service life of taper sheath.
Preferably, the buffer board end is made of resilient steel material, and the angle of two buffer boards composition is internally provided with
Air bag；The air bag is connected between the air cavity inside of adjacent cells by pipeline for being supported to buffer board；Material is random
It can be contacted with a part of buffer board, buffer board end can generate certain deformation, and the air bag inside angle will receive crowded
Pressure, to the gas of the inside air bag be imported on adjacent air bag, so that one side can be to angle in original state
Two buffer boards are supported, and on the other hand since different buffer boards is different from the contact series of material, will can be first impacted
Air bag in gas import connection other air bag in so that other inside air bag gas increases, to improve air bag
Local strength, and then the integrated buffer effect of taper sheath is further increased, improve the service life of taper sheath.
Preferably, it is correspondingly connected on the flanged plate at the position of plate and is provided with through slot, flanged plate is close to connecting plate
Side is symmetrically arranged with two arc panels；Described equal one end of arc panel is connected on flange face, and the other end is free end；The arc
Wirerope is connected in the middle part of plate；The wirerope other end passes through corresponding through slot and is connected on fixed ring side；Original state
When, it is connected in the middle part of arc panel first with steel wire penetrating through slot, arc panel is held in what connecting plate was fixed using bolt
At position, connecting plate may also be struck since material is hit at random, and connect under the action of taper sheath is integrally impacted
Fishplate bar also can be impacted, loosens so that bolt can generate, therefore is protected using arc panel the place of being bolted, can
The protection effect to bolt is greatly enhanced, material is reduced and directly hits the problem that loosens caused by bolt, improve taper sheath
Whole tightness, further improve the service life of taper sheath.
Preferably, the connected one end of the arc panel carries out repair welding, and the other end of arc panel is fixed with reinforcing rib, arc panel
It is made of elastic steel material；Arc panel made of resilient steel material has certain elasticity, can reduce and directly connect with material
The impact generated is touched, and one end by being connected to arc panel carries out repair welding, can reinforce the integrated connection intensity at this, simultaneously
Another free end carries out the reinforcing rib that is connected, so that the intensity of arc board ends is greater than middle part, can make when by material impacting
Portion's deformation carries out unloading power, and both ends keep stablizing, and arc panel is hardly damaged, to further increase the use of taper sheath entirety
Service life.
Beneficial effects of the present invention are as follows:
1. the present invention is by the way that by the setting of taper sheath, roller set is formed into two, so as to carry out after the damage of taper sheath
Local replacing is convenient for changing while saving material, and the elastic ring enhancing sealing effect of the crevice place addition between two halves roller set
While fruit, avoid hot-fluid impact that bolt is caused to loosen, and be able to carry out adaptive change when taper sheath expands with heat and contract with cold, and
Cooperation fixed ring is fixed, and then ensure that the whole tightness of taper sheath, improves the service life of taper sheath.
2. the buffer board of the invention by being connected between two fixed rings, and buffer board is obliquely installed, so that material is hit
The motion track of a part of material can be changed when hitting taper sheath, while the place of being bolted is prevented with arc panel cooperation
Shield, thus reduce bolt loosen cause taper sheath entirety tightness decline a possibility that while, reduce material to taper protect
The impact force of set, and then further increase the service life of taper sheath.
Detailed description of the invention
The present invention will be further explained below with reference to the attached drawings.
Fig. 1 is structural schematic diagram of the invention；
Fig. 2 is the cross-sectional view of A-A in Fig. 1；
Fig. 3 is the partial enlarged view in Fig. 1 at B；
Fig. 4 is the partial enlarged view in Fig. 2 at C；
In figure: grinding roller 1, taper sheath 2, half roller set 21, flanged plate 3, through slot 31, connecting plate 32, fixed ring 4, elasticity
Enclose 5, buffer board 6, connecting spring 7, air bag 8, arc panel 9, wirerope 10, reinforcing rib 11.
Specific embodiment
In order to be easy to understand the technical means, the creative features, the aims and the efficiencies achieved by the present invention, tie below
Specific embodiment is closed, the present invention is further explained.
As shown in Figures 1 to 4, a kind of vertical grinding roll cover of the present invention, including grinding roller 1, taper sheath 2 and flanged plate 3；
The flanged plate 3 is connected in one end that taper sheath 2 is relatively large in diameter, and the flange in 2 outside of taper sheath is also provided with to be connected with grinding roller 1
The connecting hole connect；The taper sheath 2 is socketed on roll shaft, and taper sheath 2 is made of the half roller set 21 of two double of settings；Two institutes
It states and is connected between half roller set 21 by the connecting plate 32 that end is provided with, and be socketed on 2 outer ring of taper sheath being combined into solid
Determine ring 4；The contact surface of the taper sheath 2 and roller set is equipped with elastic ring 5；Existing roller set during the work time usually can be straight
It connects and is contacted with material, substantially reduced by the direct service life for causing roller to cover of hitting of material, so, the technical program passes through
By taper heart sheath using half roller set, 21 composition half-and-half, two halves roller set 21 is directly solid using bolt by symmetrical connecting plate 32
Even, while two opposite elastic rings 5 are added between taper sheath 2 and grinding roller 1, the both ends of elastic ring 5 be located at half roller cover 21 it
Between crevice place, the taper sheath 2 combined is fixed followed by fixed ring 4, elastic ring 5 can be in fixed ring 4
Lower deformation is squeezed, to buffer to the seam crossing between two halves roller set 21, while convenient for light caused by the variation of roller sleeving temperature
It is micro- to expand with heat and contract with cold so that two halves roller set 21 between connect it is even closer, avoid hot-fluid impact cause bolt to loosen, and then improve
The whole service life of taper sheath 2.
As one such embodiment, the fixed ring 4 is fixed by screws in the outer surface of taper sheath 2；Phase
A circle buffer board 6 is provided between the adjacent fixed ring 4；The buffer board 6 is hinged on 2 outer surface of taper sheath, buffering
Plate 6 is for buffering impact of the material to taper sheath 2；The taper sheath 2 combined is secured using fixed ring 4, but in object
Expect under biggish percussion, therefore taper sheath 2 still can damage faster, so by between adjacent fixed ring 4
One circle buffer board 6 of addition, buffer board 6 are hinged on 2 outer surface of taper sheath, and buffer board 6 can connect two fixed rings 4, so that solid
Determine the integral strength enhancing of ring 4, simultaneous buffering plate 6 can also buffer material, change the moving rail of a part of material at random
Mark reduces material and directly hits 2 surface of taper sheath, so that taper sheath 2 possesses while more preferably protecting grinding roller 1 into one
Step improves the service life of itself.
As one such embodiment, the buffer board 6 is obliquely installed, and 6 end of adjacent buffer plate is in contact
And 30~60 ° of angle is formed, connecting spring 7 is fixed between the buffer board 6 that both ends are not in contact；The connecting spring 7
For being supported to buffer board 6；Since buffer board 6 is hinged on 2 outer surface of taper sheath, can be produced when buffering is by material impacting
Raw certain swing can preferably change material impacting angle by being obliquely installed buffer board 6 in material impacting,
Better buffering has been carried out, and has been fixed with connecting spring 7 between the buffer board 6 that both ends are not in contact, so that two is slow
Punching 6 is supported under the action of connecting spring 7, and then guarantees that 6 meetings of buffer board are delayed to another side oscillation, and with other
6 end of punching contact composition 30~angle so that material can hit buffer board 6 angle when change direction impact connection
Spring 7, subsequent connecting spring 7 will do it secondary buffer, improve whole buffering effect, further increase making for taper sheath 2
Use the service life.
As one such embodiment, 6 end of buffer board is made of resilient steel material, two 6 groups of buffer boards
At angle be internally provided with air bag 8；The air bag 8 is used to be supported buffer board 6, the air cavity inside of adjacent cells 8
Between pass through pipeline be connected to；Material is contacted with chance with a part of buffer board 6, and 6 end of buffer board can generate certain deformation,
Air bag 8 inside angle will receive extruding, to the gas inside the air bag 8 be imported on adjacent air bag 8, thus one
Aspect can be supported two buffer boards 6 of angle in original state, on the other hand due to different buffer board 6 and material
Contact series are different, can import gas in the air bag 8 being first impacted in the other air bag 8 of connection, so that other gas
8 internal gas of capsule increases, to improve the local strength of air bag 8, and then further increases the integrated buffer effect of taper sheath 2
Fruit improves the service life of taper sheath 2.
As one such embodiment, it is correspondingly connected on the flanged plate 3 at the position of plate 32 and is provided with through slot
31, flanged plate 3 is symmetrically arranged with two arc panels 9 close to the side of connecting plate 32；The equal one end of the arc panel 9 is connected in flange face
On, the other end is free end；Wirerope 10 is connected in the middle part of the arc panel 9；10 other end of wirerope passes through corresponding
Through slot 31 is connected on 4 side of fixed ring；When original state, through slot 31 is passed through first with wirerope 10 and is connected to arc panel 9
Arc panel 9 is held at the position that connecting plate 32 uses bolt fixed, may also strike since material is hit at random by middle part
Connecting plate 32, and connecting plate 32 also can be impacted under the action of 2 entirety of taper sheath is impacted, so that bolt can produce
Life loosens, therefore is protected using arc panel 9 place of being bolted, and can greatly enhance the protection effect to bolt, reduces
Material directly hits the problem that loosens caused by bolt, improves the whole tightness of taper sheath 2, further improves taper
The service life of sheath 2.
As one such embodiment, the connected one end of the arc panel 9 carries out repair welding, the other end of arc panel 9
It is fixed with reinforcing rib 11, arc panel 9 is made of elastic steel material；Arc panel 9 made of resilient steel material has certain bullet
Property, the impact generated with material directly contact can be reduced, and one end by being connected to arc panel 9 carries out repair welding, Neng Goujia
The integrated connection intensity that should go out by force, while another free end carries out the reinforcing rib 11 that is connected, so that the intensity at 9 both ends of arc panel is greater than
Middle part can make middle part deformation carry out unloading power when by material impacting, and both ends keep stablizing, and arc panel 9 is hardly damaged, thus
Further increase the whole service life of taper sheath 2.
When work, existing roller set usually can be contacted directly with material during the work time, by the direct shock of material
The service life for causing roller to cover substantially reduces, so, the technical program is by covering 21 using half roller half-and-half for taper heart sheath
Composition, two halves roller set 21 are directly connected using bolt by symmetrical connecting plate 32, while between taper sheath 2 and grinding roller 1
Two opposite elastic rings 5 are added, the both ends of elastic ring 5 are located at the crevice place between half roller set 21, followed by 4 pairs of groups of fixed ring
The taper sheath 2 got togather is fixed, and elastic ring 5 can deform under the extruding of fixed ring 4, thus between two halves roller set 21
Seam crossing buffered, while convenient for roller sleeving temperature variation caused by slightly expand with heat and contract with cold so that two halves roller cover 21 between connect
What is connect is even closer, and then improves the whole service life of taper sheath 2；Meanwhile it being combined although being secured using fixed ring 4
Taper sheath 2, but under the biggish percussion of material, therefore taper sheath 2 still can damage faster, so passing through
Buffer board 6 is enclosed in addition one between adjacent fixed ring 4, and buffer board 6 is hinged on 2 outer surface of taper sheath, and buffer board 6 can connect
Two fixed rings 4 are connect, so that the integral strength of fixed ring 4 enhances, simultaneous buffering plate 6 can also be buffered material, random to change
The motion track of a part of material reduces material and directly hits 2 surface of taper sheath, so that taper sheath 2 possesses more preferably
The service life of itself is further increased while protecting grinding roller 1.
The basic principles, main features and advantages of the invention have been shown and described above.The technical staff of the industry should
Understand, the present invention is not limited to the above embodiments, and the above embodiments and description only describe originals of the invention
Reason, without departing from the spirit and scope of the present invention, various changes and improvements may be made to the invention, these changes and improvements
It all fall within the protetion scope of the claimed invention.The claimed scope of the invention is by appended claims and its equivalent circle
It is fixed.
Claims (6)
1. a kind of vertical grinding roll cover, including grinding roller (1), taper sheath (2) and flanged plate (3)；The flanged plate (3) is connected in taper
One end that sheath (2) is relatively large in diameter, the flange on the outside of taper sheath (2) are also provided with the connecting hole connecting with grinding roller (1)；It is special
Sign is: the taper sheath (2) is socketed on roll shaft, and taper sheath (2) is made of half roller set (21) of two double of settings；Two
It is connected between the half roller set (21) by the connecting plate (32) that end is provided with, and on taper sheath (2) outer ring being combined into
It is socketed with fixed ring (4)；The contact surface of the taper sheath (2) and roller set is equipped with elastic ring (5).
2. a kind of vertical grinding roll cover according to claim 1, it is characterised in that: the fixed ring (4) is fixed by screws in
The outer surface of taper sheath (2)；A circle buffer board (6) is provided between the adjacent fixed ring (4)；The buffer board (6) is equal
It is hinged on taper sheath (2) outer surface, buffer board (6) is for buffering impact of the material to taper sheath (2).
3. a kind of vertical grinding roll cover according to claim 2, it is characterised in that: the buffer board (6) is obliquely installed, and phase
Adjacent buffer board (6) end is in contact and forms 30~60 ° of angle, is fixed between the buffer board (6) that both ends are not in contact
Connecting spring (7)；The connecting spring (7) is for being supported buffer board (6).
4. a kind of vertical grinding roll cover according to claim 3, it is characterised in that: in the angle of two buffer board (6) compositions
Portion is provided with air bag (8)；The air bag (8) is for being supported buffer board (6), between the air cavity inside of adjacent cells (8)
It is connected to by pipeline.
5. a kind of vertical grinding roll cover according to claim 4, it is characterised in that: be correspondingly connected with plate on the flanged plate (3)
(32) it is provided at position through slot (31), flanged plate (3) is symmetrically arranged with two arc panels close to the side of connecting plate (32)
(9)；The arc panel (9) one end is connected on flange face, and the other end is free end；It is connected in the middle part of the arc panel (9)
Wirerope (10)；Wirerope (10) other end passes through corresponding through slot (31) and is connected on fixed ring (4) side.
6. a kind of vertical grinding roll cover according to claim 5, it is characterised in that: the connected one end of the arc panel (9) carries out
Repair welding, the other end of arc panel (9) are fixed with reinforcing rib (11), and arc panel (9) is made of elastic steel material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910641582.4A CN110270412B (en) | 2019-07-16 | 2019-07-16 | Vertical mill roller sleeve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910641582.4A CN110270412B (en) | 2019-07-16 | 2019-07-16 | Vertical mill roller sleeve |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110270412A true CN110270412A (en) | 2019-09-24 |
| CN110270412B CN110270412B (en) | 2020-12-08 |
Family
ID=67964513
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910641582.4A Active CN110270412B (en) | 2019-07-16 | 2019-07-16 | Vertical mill roller sleeve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110270412B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112974536A (en) * | 2021-03-15 | 2021-06-18 | 王俊勇 | Composite roller with detachable and reusable roller sleeve |
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| CN104815744A (en) * | 2015-04-21 | 2015-08-05 | 中材（天津）粉体技术装备有限公司 | Vertical roller mill grinding roller protection sleeve |
| CN105498910A (en) * | 2016-01-16 | 2016-04-20 | 广西辉煌机械股份有限公司 | Grinding roller protecting sleeve of vertical grinder |
| CN105750013A (en) * | 2016-03-16 | 2016-07-13 | 郑州大学 | Novel grinding roller with quick-changing shell and method of changing quick-changing shell thereof |
| CN109261294A (en) * | 2018-08-02 | 2019-01-25 | 宜昌船舶柴油机有限公司 | Grind the positioning tool and positioning location mode of roll sleeve outer surface wearable ceramic bar |
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2019
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2302900C2 (en) * | 2002-05-29 | 2007-07-20 | Леше ГмбХ | Ore crushing method and apparatus |
| US20060118673A1 (en) * | 2004-11-22 | 2006-06-08 | Wark Rickey E | Method and apparatus for protected coal mill journals |
| CN104815744A (en) * | 2015-04-21 | 2015-08-05 | 中材（天津）粉体技术装备有限公司 | Vertical roller mill grinding roller protection sleeve |
| CN105498910A (en) * | 2016-01-16 | 2016-04-20 | 广西辉煌机械股份有限公司 | Grinding roller protecting sleeve of vertical grinder |
| CN105750013A (en) * | 2016-03-16 | 2016-07-13 | 郑州大学 | Novel grinding roller with quick-changing shell and method of changing quick-changing shell thereof |
| CN109261294A (en) * | 2018-08-02 | 2019-01-25 | 宜昌船舶柴油机有限公司 | Grind the positioning tool and positioning location mode of roll sleeve outer surface wearable ceramic bar |
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| CN112974536A (en) * | 2021-03-15 | 2021-06-18 | 王俊勇 | Composite roller with detachable and reusable roller sleeve |
Also Published As
| Publication number | Publication date |
|---|---|
| CN110270412B (en) | 2020-12-08 |
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