CN203874844U - Dual-layer roller Raymond mill - Google Patents
Dual-layer roller Raymond mill Download PDFInfo
- Publication number
- CN203874844U CN203874844U CN201320775872.6U CN201320775872U CN203874844U CN 203874844 U CN203874844 U CN 203874844U CN 201320775872 U CN201320775872 U CN 201320775872U CN 203874844 U CN203874844 U CN 203874844U
- Authority
- CN
- China
- Prior art keywords
- grinding roller
- roller
- bull ring
- frame
- layer
- 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.)
- Expired - Fee Related
Links
Landscapes
- Crushing And Grinding (AREA)
Abstract
The utility model discloses a dual-layer roller Raymond mill which comprises a milling main machine, wherein a center shaft bracket and milling rings are coaxially arranged on a base of the milling main machine, the lower part of a main shaft of the main machine is arranged in the center shaft bracket and downwards extends out to be connected with a transmission mechanism, a relieving tool post is coaxially arranged at the upper part of the main shaft of the main machine, a fixed roller frame connected with the top of the relieving tool post is arranged at the upper end of the main shaft of the main machine, a relieving tool is arranged at the bottom of the relieving tool post, a plurality of milling roller devices are uniformly distributed into a circle around an axis and are arranged on the fixed roller frame and are divided into two or more groups, milling rollers in different groups of milling roller devices are located at positions of different layer heights to form two or more layers of rollers; corresponding to the two or more layers of rolls, the milling rings are distributed into two or more layers of milling rings which are coaxial; and the reliving height of the relieving tool corresponds to the milling roller at the bottommost layer. The dual-layer roller Raymond mill is used for gradually processing powder from coarse powder into fine powder by adopting a milling manner of two or more layers of rollers, bears small resistance in a milling process, causes small power loss and has a high production rate of the fine powder.
Description
(1) technical field:
The utility model relates to powder process equipment, is a kind of double-deck roll raymond mill specifically.
(2) background technology:
Flour mill is breeze sector application equipment the most widely, and wherein the most representative equipment is raymond mill.
The universal architecture of raymond grinding powder machine host is: hollow central shaft bracket and coaxial bull ring are housed on main machine base, main frame main shaft is located in central shaft bracket, fixed roll frame (or claiming plum blossom frame) is equipped with in the main frame main shaft upper end of stretching outside central shaft bracket, on fixed roll frame, by the even hanging of hinge device, there are a plurality of and central axes and are the grinding roller assembly of circle distribution, grinding roller assembly is comprised of grinding roller sleeve and grinding roller, in the revolution process of grinding roller assembly, grinding roller assembly makes to keep in touch between each grinding roller and bull ring by centrifugal action, mutually rolling between grinding roller and bull ring reaches crushing material the object of producing powder, this is the Cracking Mechanism place of abrasive dust main frame.
The raymond mill of traditional structure is applicable to processing and collects 60 order～200 object meal, but collect the fine powder body (as even higher in 200 order～2000 orders) of higher order number, if also adopt Raymond machine processing, the outstanding problem such as the process time of Raymond machine, efficiency, vibrations and noise is difficult to solve; Both made to adopt adding pressure type grinding roller assembly, effect neither be very desirable.If therefore want to obtain fine powder or superfine powder, need to adopt the flour mill of other structural shape to encircle roller mill.
But ring roller mill is expensive, high to initial powder degree of crushing requirement, ordinary maintenance complicated maintenance etc. factor, has restricted the selection of user to ring roller mill.
(3) utility model content:
For this reason, the utility model proposes a kind of double-deck roll raymond mill, mainly solve traditional raymond mill and can not process fine powder body and the low problem of working (machining) efficiency.
A kind of technical scheme of the double-deck roll raymond mill that can address the above problem, comprise abrasive dust main frame, central shaft bracket and bull ring are coaxially housed on the base of abrasive dust main frame, main frame main shaft bottom is located in central shaft bracket and is stretched out connection for transmission mechanism downwards, main frame main shaft top coaxial package relieving tool post, the fixed roll frame being connected with relieving tool post top is equipped with in main frame main shaft upper end, perching knife is installed in relieving tool post bottom, a plurality of Burnisher apparatus are around axis circumference uniform distribution and be hinged hanging on fixed roll frame, described Burnisher apparatus is divided into two or more sets unlike the prior art, the hanging of Burnisher apparatus is on the same group highly not different, thereby the grinding roller that makes respectively to organize Burnisher apparatus is on different floor height positions and form two-layer roller or multilayer roller, corresponding to two-layer roller or multilayer roller, described bull ring is coaxial two-layer bull ring or multilayer bull ring, the shovel material height of described perching knife is corresponding to orlop grinding roller.
Described Burnisher apparatus conventionally adopts two groups, and corresponding described grinding roller is two-layer roller, and upper strata grinding roller and lower floor's grinding roller sequence, and described bull ring is two-layer bull ring.
Described upper strata bull ring is mainly produced fine powder, and described lower floor bull ring is responsible for thickness and is processed simultaneously, and for promoting the generation of more fine powders, the diameter of described upper strata bull ring is not identical with the diameter of lower floor's bull ring.
For improving grinding efficiency, between described grinding roller sleeve and relieving tool post, also can be provided with the thrust mechanism that grinding roller sleeve is produced to radial thrust.
Described thrust mechanism is elastic body or is hydraulic mechanism, Huo Wei air pressure mechanism, or be the combining structure of elastic body and hydraulic mechanism or be the combining structure of elastic body and air pressure mechanism.
The another kind of technical scheme of the double-deck roll raymond mill that can address the above problem, comprise abrasive dust main frame, central shaft bracket and bull ring are coaxially housed on the base of abrasive dust main frame, main frame main shaft bottom is located in central shaft bracket and is stretched out connection for transmission mechanism downwards, main frame main shaft top coaxial package relieving tool post, the fixed roll frame being connected with relieving tool post top is equipped with in main frame main shaft upper end, perching knife is installed in relieving tool post bottom, a plurality of Burnisher apparatus are installed on fixed roll frame around axis circumference uniform distribution, the grinding roller position of Burnisher apparatus is corresponding to bull ring, described Burnisher apparatus is spaced longitudinal-pendulum type grinding roller mechanism and yaw formula grinding roller mechanism unlike the prior art, the grinding roller of each grinding roller mechanism is on different floor height positions and form two-layer roller or multilayer roller, grinding roller corresponding to different layers high position, described bull ring is coaxial two-layer bull ring or multilayer bull ring, the shovel material height of described perching knife is corresponding to orlop grinding roller.
Described grinding roller conventionally adopts upper and lower two-layer roller, and upper strata grinding roller and lower floor's grinding roller sequence, and corresponding described bull ring is upper and lower two-layer bull ring; The grinding roller mechanism that upper strata grinding roller is corresponding is yaw formula grinding roller mechanism, and the grinding roller mechanism that lower floor's grinding roller is corresponding is longitudinal-pendulum type grinding roller mechanism.
The grinding roller sleeve of described longitudinal-pendulum type grinding roller mechanism by linkage hanging on fixed roll frame.
Described yaw formula grinding roller mechanism comprises that grinding roller pushes away frame and thrust mechanism, described grinding roller pushes away frame and radially slides on the slide that is installed on fixed roll frame, described thrust mechanism is located at relieving tool post and grinding roller and is pushed away and between frame, grinding roller is pushed away to frame and produce radial thrust, and described grinding roller is installed on grinding roller by shaft of grinding roller and pushes away in frame.
Described upper strata bull ring is mainly produced fine powder, and described lower floor bull ring is responsible for thickness and is processed simultaneously, and for promoting the generation of more fine powders, the diameter of described upper strata bull ring is not identical with the diameter of lower floor's bull ring.
Advantage of the present utility model:
1, the utility model double-deck roll raymond mill has thoroughly been overturned the structure of traditional raymond mill individual layer mill, adopted the milling of two-layer roller or multilayer roller, powder is carried out to the progressive processing to fine powder by meal, and in mill processes, suffered resistance is little, and power attenuation is little, fine powder production rate is high.
2, the utility model is simple in structure, cost is low, manufacture handling ease, completely can substituted ring roller mill and become the preferred unit of fine powder processing.
(4) accompanying drawing explanation:
Fig. 1 is the structural representation of a kind of embodiment of the utility model.
Fig. 2 is the structural representation of the utility model the second embodiment.
Fig. 3 is the structural representation of the third embodiment of the utility model.
Fig. 4 is the distribution map of grinding roller in Fig. 1, Fig. 2, Fig. 3.
Figure number sign: 1, base; 2, central shaft bracket; 3, main frame main shaft; 4, relieving tool post; 5, fixed roll frame; 6, grinding roller sleeve; 7, grinding roller; 8, perching knife; 9, upper strata bull ring; 10, lower floor's bull ring; 11, thrust mechanism; 12, grinding roller pushes away frame; 13, slide; 14, shaft of grinding roller; 15, cover cylinder.
(5) specific embodiment:
Below in conjunction with accompanying drawing illustrated embodiment, the technical solution of the utility model is described further:
The first embodiment:
The base 1 of the abrasive dust main frame of the utility model double-deck roll raymond mill is fixed on concrete machine block, the hollow central shaft bracket 2 of coaxial installation on base 1, upper strata bull ring 9 and lower floor's bull ring 10 and cover cylinder 15, main frame main shaft 3 bottoms are installed in central shaft bracket 2, main frame main shaft 3 lower ends are stretched out central shaft bracket 2 and are connected motor by belt pulley, central shaft bracket 2 coaxial package relieving tool post 4 are stretched out in main frame main shaft 3 tops, it is plum blossom shelf structure that fixed roll frame 5(is equipped with on the top of main frame main shaft 3), fixed roll frame 5 connects relieving tool post 4 tops, perching knife 8 is installed in relieving tool post 4 bottoms, on fixed roll frame 5, circumference uniform distribution is equipped with six or eight Burnisher apparatus parallel with main frame main shaft 3 axis, described Burnisher apparatus is by grinding roller sleeve 6, shaft of grinding roller 14 and grinding roller 7 form, described shaft of grinding roller 14 is by upper, lower bearing position is installed in grinding roller sleeve 6, linkage hanging is passed through on fixed roll frame 5 in the top of described grinding roller sleeve 6, described grinding roller 7 is coaxially connected with the shaft of grinding roller 14 that stretches out grinding roller sleeve 6 in grinding roller sleeve 6 belows, as Fig. 1, shown in Fig. 2.
Eight Burnisher apparatus of take are example, eight Burnisher apparatus are divided into two groups, grinding roller sleeve 6 length in two groups of Burnisher apparatus are different, make the hanging of two groups of Burnisher apparatus highly different, cause two groups of grinding rollers 7 in Burnisher apparatus on two different floor height positions and form two-layer roller, the position that is staggeredly located of upper strata grinding roller 7 and lower floor's grinding roller 7, the height of upper strata grinding roller 7 is corresponding to upper strata bull ring 9, the height of lower floor's grinding roller 7 is corresponding to lower floor's bull ring 10, the diameter of described upper strata bull ring 9 is not identical with the diameter of lower floor bull ring 10, the quality of lower floor's grinding roller 7 is greater than the quality of upper strata grinding roller 7, in the situation that diameter is identical, the thickness of lower floor's grinding roller 7 is greater than the thickness of upper strata grinding roller 7, the shovel material height of described perching knife 8 is corresponding to lower floor's grinding roller 7, as Fig. 1, Fig. 2, shown in Fig. 4.
Between described Burnisher apparatus and relieving tool post 4, be provided with thrust mechanism 11, the outside radial thrust of described thrust mechanism 11 acts on grinding roller sleeve 6, active position is corresponding to the lower bearing position in grinding roller sleeve 6, in embodiment as shown in Figure 2, described thrust mechanism 11 adopts Compress Spring as elastic body, Compress Spring power makes Burnisher apparatus produce inclined to one side square, and realize the extra pressure of 7 pairs of bull rings of grinding roller, during abrasive dust host work, the centrifugal force of extra pressure and grinding roller 7 synthesizes the grinding pressure between grinding roller 7 and bull ring.
The second embodiment:
The base 1 of the abrasive dust main frame of the utility model double-deck roll raymond mill is fixed on concrete machine block, the hollow central shaft bracket 2 of coaxial installation on base 1, upper strata bull ring 9 and lower floor's bull ring 10 and cover cylinder 15, main frame main shaft 3 bottoms are installed in central shaft bracket 2, main frame main shaft 3 lower ends are stretched out central shaft bracket 2 and are connected motor by belt pulley, central shaft bracket 2 coaxial package relieving tool post 4 are stretched out in main frame main shaft 3 tops, it is plum blossom shelf structure that fixed roll frame 5(is equipped with on the top of main frame main shaft 3), fixed roll frame 5 connects relieving tool post 4 tops, perching knife 8 is installed in relieving tool post 4 bottoms, on fixed roll frame 5, circumference uniform distribution is equipped with six or eight Burnisher apparatus, described Burnisher apparatus is spaced longitudinal-pendulum type grinding roller mechanism and yaw formula grinding roller mechanism, eight Burnisher apparatus of take are example, eight Burnisher apparatus are divided into two groups, be respectively four groups of longitudinal-pendulum type grinding roller mechanisms and four groups of yaw formula grinding roller mechanisms, as shown in Figure 3.
Described longitudinal-pendulum type grinding roller mechanism comprises grinding roller sleeve 6, shaft of grinding roller 14 and grinding roller 7, described shaft of grinding roller 14 is installed in grinding roller sleeve 6 by upper and lower bearing position, the top of described grinding roller sleeve 6 is by linkage hanging on fixed roll frame 5, and described grinding roller 7 is coaxially connected with the shaft of grinding roller 14 that stretches out grinding roller sleeve 6 in grinding roller sleeve 6 belows; Described yaw formula grinding roller mechanism comprises that grinding roller pushes away frame 12 and thrust mechanism 11, described grinding roller pushes away frame 12 and is radially slided and be installed on fixed roll frame 5 by slide 13, described grinding roller 7 is installed on grinding roller by shaft of grinding roller 14 and pushes away in frame 12, described thrust mechanism 11 is located at relieving tool post 4 and grinding roller pushes away between frame 12,11 pairs of grinding rollers of thrust mechanism push away frame 12 and produce radial thrust, grinding roller 7 is pressed on bull ring, as shown in Figure 3.
Grinding roller 7 height of described longitudinal-pendulum type grinding roller mechanism are lower than grinding roller 7 height of yaw formula grinding roller mechanism, therefore in both position height in two different layers, form two-layer roller, the position that is staggeredly located of upper strata grinding roller 7 and lower floor's grinding roller 7, the height of upper strata grinding roller 7 is corresponding to upper strata bull ring 9, the height of lower floor's grinding roller 7 is corresponding to lower floor's bull ring 10, the diameter of described upper strata bull ring 9 and the quality of the not identical lower floor of the diameter grinding roller 7 of lower floor bull ring 10 are greater than the quality of upper strata grinding roller 7, in the situation that diameter is identical, the thickness of lower floor's grinding roller 7 is greater than the thickness of upper strata grinding roller 7, the shovel material height of described perching knife 8 is corresponding to lower floor's grinding roller 7, as Fig. 3, shown in Fig. 4.
The course of work of the present utility model:
Motor Drive main frame main shaft 3, main frame main shaft 3 drives 5 rotations of fixed roll frame, and the Burnisher apparatus on fixed roll frame 5 is around the 3 central axis revolution of main frame main shaft, and the grinding roller 7 of described Burnisher apparatus forms double-deck roll; Meanwhile, material enters from the charging aperture of cover cylinder 15.In mill processes, the middle fine powder that perching knife 8 is thrown and cover cylinder 15 analytical engine above intercept the middle fine powder getting off and mill through upper strata grinding roller 7, and the coarse fodder that perching knife 8 is thrown mainly feeds lower floor's grinding roller 7, and constantly circulation is raised the efficiency.
Claims (10)
1. double-deck roll raymond mill, comprise abrasive dust main frame, central shaft bracket (2) and bull ring are coaxially housed on the base of abrasive dust main frame (1), main frame main shaft (3) bottom is located in central shaft bracket (2) and is stretched out connection for transmission mechanism downwards, main frame main shaft (3) top coaxial package relieving tool post (4), the fixed roll frame (5) being connected with relieving tool post (4) top is equipped with in main frame main shaft (3) upper end, perching knife (8) is installed in relieving tool post (4) bottom, a plurality of Burnisher apparatus are around axis circumference uniform distribution and be hinged hanging on fixed roll frame (5), it is characterized in that: described Burnisher apparatus is divided into two or more sets, the hanging of Burnisher apparatus is on the same group highly not different, thereby the grinding roller (7) that makes respectively to organize Burnisher apparatus is on different floor height positions and form two-layer roller or multilayer roller, corresponding to two-layer roller or multilayer roller, described bull ring is coaxial two-layer bull ring or multilayer bull ring, the shovel material height of described perching knife (8) is corresponding to orlop grinding roller (7).
2. double-deck roll raymond mill according to claim 1, it is characterized in that: described Burnisher apparatus is two groups, described grinding roller (7) is upper and lower two-layer roller, and upper strata grinding roller (7) and lower floor's grinding roller (7) sequence, and described bull ring is upper and lower two-layer bull ring.
3. double-deck roll raymond mill according to claim 2, is characterized in that: the diameter of described upper and lower two-layer bull ring is not identical.
4. according to the double-deck roll raymond mill described in any one in claim 1～3, it is characterized in that: between described grinding roller sleeve (6) and relieving tool post (4), be provided with the thrust mechanism (11) that grinding roller sleeve (6) is produced to radial thrust.
5. double-deck roll raymond mill according to claim 4, it is characterized in that: described thrust mechanism (11) is for elastic body or be hydraulic mechanism, Huo Wei air pressure mechanism, or be the combining structure of elastic body and hydraulic mechanism or be the combining structure of elastic body and air pressure mechanism.
6. double-deck roll raymond mill, comprise abrasive dust main frame, central shaft bracket (2) and bull ring are coaxially housed on the base of abrasive dust main frame (1), main frame main shaft (3) bottom is located in central shaft bracket (2) and is stretched out connection for transmission mechanism downwards, main frame main shaft (3) top coaxial package relieving tool post (4), the fixed roll frame (5) being connected with relieving tool post (4) top is equipped with in main frame main shaft (3) upper end, perching knife (8) is installed in relieving tool post (4) bottom, a plurality of Burnisher apparatus are installed on fixed roll frame (5) around axis circumference uniform distribution, the grinding roller of Burnisher apparatus (7) position is corresponding to bull ring, it is characterized in that: described Burnisher apparatus is spaced longitudinal-pendulum type grinding roller mechanism and yaw formula grinding roller mechanism, the grinding roller of each grinding roller mechanism (7) is on different floor height positions and form two-layer roller or multilayer roller, grinding roller (7) corresponding to different layers high position, described bull ring is coaxial two-layer bull ring or multilayer bull ring, the shovel material height of described perching knife (8) is corresponding to orlop grinding roller (7).
7. double-deck roll raymond mill according to claim 6, is characterized in that: described grinding roller (7) is upper and lower two-layer roller, and upper strata grinding roller (7) and lower floor's grinding roller (7) sequence, and described bull ring is upper and lower two-layer bull ring; The grinding roller mechanism that upper strata grinding roller (7) is corresponding is yaw formula grinding roller mechanism, and the grinding roller mechanism that lower floor's grinding roller (7) is corresponding is longitudinal-pendulum type grinding roller mechanism.
8. double-deck roll raymond mill according to claim 7, is characterized in that: the grinding roller sleeve (6) of described longitudinal-pendulum type grinding roller mechanism by linkage hanging on fixed roll frame (5).
9. double-deck roll raymond mill according to claim 7, it is characterized in that: described yaw formula grinding roller mechanism comprises that grinding roller pushes away frame (12) and thrust mechanism (11), described grinding roller pushes away frame (12) and radially slides on the slide (13) that is installed on fixed roll frame (5), described thrust mechanism (11) is located at relieving tool post (4) and grinding roller and is pushed away and between frame (12), grinding roller is pushed away to frame (12) and produce radial thrust, and described grinding roller (7) is installed on grinding roller by shaft of grinding roller (14) and pushes away in frame (12).
10. according to the double-deck roll raymond mill described in any one in claim 7～9, it is characterized in that: the diameter of described upper and lower two-layer bull ring is not identical.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320775872.6U CN203874844U (en) | 2013-11-29 | 2013-11-29 | Dual-layer roller Raymond mill |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320775872.6U CN203874844U (en) | 2013-11-29 | 2013-11-29 | Dual-layer roller Raymond mill |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203874844U true CN203874844U (en) | 2014-10-15 |
Family
ID=51675390
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320775872.6U Expired - Fee Related CN203874844U (en) | 2013-11-29 | 2013-11-29 | Dual-layer roller Raymond mill |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203874844U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104759323A (en) * | 2015-04-15 | 2015-07-08 | 河南维科重工机械有限公司 | Combined mill |
| CN105080666A (en) * | 2015-09-06 | 2015-11-25 | 李国良 | Raymond mill |
| CN109046614A (en) * | 2018-08-09 | 2018-12-21 | 天津市国民制药机械有限公司 | A kind of modern Chinese medicine Chinese medicine grinding device |
| CN111530560A (en) * | 2020-05-09 | 2020-08-14 | 南通利元亨机械有限公司 | Eight-roller Raymond mill |
| CN115518737A (en) * | 2022-10-31 | 2022-12-27 | 徐州奔蓝机械科技有限公司 | Raymond mill for treating mine stones |
-
2013
- 2013-11-29 CN CN201320775872.6U patent/CN203874844U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104759323A (en) * | 2015-04-15 | 2015-07-08 | 河南维科重工机械有限公司 | Combined mill |
| CN104759323B (en) * | 2015-04-15 | 2017-07-25 | 河南维科重工机械有限公司 | Combined type flour mill |
| CN105080666A (en) * | 2015-09-06 | 2015-11-25 | 李国良 | Raymond mill |
| CN109046614A (en) * | 2018-08-09 | 2018-12-21 | 天津市国民制药机械有限公司 | A kind of modern Chinese medicine Chinese medicine grinding device |
| CN111530560A (en) * | 2020-05-09 | 2020-08-14 | 南通利元亨机械有限公司 | Eight-roller Raymond mill |
| CN115518737A (en) * | 2022-10-31 | 2022-12-27 | 徐州奔蓝机械科技有限公司 | Raymond mill for treating mine stones |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN203874844U (en) | Dual-layer roller Raymond mill | |
| CN105965335A (en) | Special-shaped sanding machine | |
| CN101280809A (en) | Drive axle rolling type radial support apparatus | |
| CN104759321A (en) | Breaking roll grinding mill | |
| CN102327798A (en) | Multilayer planetary roller mill | |
| CN102744127A (en) | Oscillating arm type strong grinding mill | |
| CN210906474U (en) | Superfine powder dispersion grinding device | |
| CN203577886U (en) | Dual-layer master-slave roller type Raymond flour mill | |
| CN103481195A (en) | Multi-shaft driving device for single-face grinding polisher | |
| CN107458099A (en) | A kind of bar code printer rubber roll mechanism for installing | |
| CN202762491U (en) | Integrated and efficient pulverizer | |
| CN102814212A (en) | Integrated efficient flour mill | |
| CN205200424U (en) | Can two ring rollss that encircle piece of simultaneous processing | |
| CN103721798A (en) | Oblique-swinging waterfall-discharging type grinder | |
| CN103752383A (en) | Cyclone-type crushing device | |
| CN208627421U (en) | A kind of sand making machine being able to ascend fragmentation cell working range | |
| CN201755783U (en) | High-precision plastic ball and grinder for plastic cement ball | |
| CN202762485U (en) | Swing-type pressurization raymond powder milling machine | |
| CN203002427U (en) | Automatic supercharging device for grinding roller of flour mill | |
| CN109807218A (en) | A kind of multistation spinning machine | |
| CN207223693U (en) | A kind of material-changing device of bearing Superfinishing machine | |
| CN204602313U (en) | Micronized pulverization roller is milled | |
| CN207591803U (en) | A kind of particle envelope equipment | |
| CN203648631U (en) | Eccentric type main structure for roller mill | |
| CN202538860U (en) | Multi-layer planetary roller grinding machine |
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: 20141015 Termination date: 20211129 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |