CN101199945A - Vertical roll grinder - Google Patents
Vertical roll grinder Download PDFInfo
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- CN101199945A CN101199945A CNA2007102026843A CN200710202684A CN101199945A CN 101199945 A CN101199945 A CN 101199945A CN A2007102026843 A CNA2007102026843 A CN A2007102026843A CN 200710202684 A CN200710202684 A CN 200710202684A CN 101199945 A CN101199945 A CN 101199945A
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- mill
- vertical roll
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- grinding
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Abstract
The invention discloses a vertical roller mill used to grind and process the cement raw meal, the cement clinker, the slag and the coal cinder; and has the characteristics of simple structure, low manufacturing and use cost. The vertical roller mill comprises a body, a grinding disc device and a transmission device; a centering device determined the gyration center is arranged between the body and the grinding disc device; the bottom of the grinding disc device is fixedly equipped with a gyration guide rail; the grinding disc device can be rotatablely supported on the body through the gyration guide rail; the grinding disc device is in transmission connection with the transmission device. Because the transmission device can not bear the weight of the grinding disc device and the high axial load of the mill pressure, etc; the transmission device can use the general reducer so that the invention has the advantages of compact structure configuration and reliable operation; and the grinding halt time can be shortened, the use and maintenance cost of the device can be reduced. By calculating, comparing with the vertical reducer, 20 percent to 30 percent of the initial investment can be saved; and the invention can be applied to the processing of the cement grinding, the slag grinding and the coal cinder grinding.
Description
Technical field
The present invention relates to widely used milling equipment in a kind of cement industry, in particular for the vertical roll grinder of cement slurry, clinker, slag and the processing of cinder grinding.
Background technology
Vertical roll grinder is called for short Vertical Mill, and Vertical Mill mainly is made up of powder concentrator (separator), grinding roller, mill, pressue device, reductor, motor, frame and housing etc.At present, though the Vertical Mill form of each manufacturer of the world is different, the MPS mill that the L/M mill of producing as German Lai Xie company, the UBE mill that Ube company produces, Atox mill that Denmark FLS Corp produces, RM mill that KHD flood fort company produces and Pfeiffer company produce, the main distinction is that grinding roller is different with the textural association of mill.The version of above-mentioned these Vertical Mills all has a common characteristic, its roller mill speed reducer that is installed on the body all adopts special-purpose vertical type speed reducer (change gear), the Vertical Mill structure of employing vertical type speed reducer (change gear) as shown in Figure 1, the mill device directly is placed on the output flange of roller mill speed reducer, general output flange is connected with bolt with the mill bottom, and transmit moment of torsion with a plurality of alignment pins, this vertical type speed reducer (change gear) should play the effect that deceleration and transmitted power, drive mill rotate, and bears the gravity of mill, material and the pressure of milling again.The Vertical Mill of above-mentioned this version has the following disadvantages:
One, vertical type speed reducer (change gear) changes transmission direction by planetary gear, cylindrical gear pair speed change, spiral bevel gear pair, and horizontally disposed main motor power is passed to the mill of vertical layout, drives mill and rotates, and reaches the grinding purpose.This is a helical tooth to the bevel gear pair, be generally crin Gen Beierge tooth system, the tooth curve of bevel gear is an involute, the type of tooth trace is for prolonging epicycloid, tooth depth is an equal-depth teeth, this helps heavy load transmission, and have and bear stronger overload and impact capacity, assembly precision is required not high yet, advantage such as error suseptibility is little, but need the dedicated gear process equipment, at present domesticly can only process little modulus (m≤20mm), the crin Gen Beierge tooth of little pitch circle (being not more than 1000mm) can not satisfy big-and-middle-sized roller mill speed reducer requirement, so this processes general the employing abroad of bevel gear, delivery cycle is long, costs an arm and a leg.
Two, because the mill of grinding machine is placed directly on the roller mill speed reducer output flange, and output flange will bear the weight of mill and the pressure of milling, therefore be provided with special thrust bearing, to absorb the high axial load that mill processes produces in the output flange lower end.The thrust slide bearing technology content is higher, and bearing material requires good urgent running-in, corrosion resistance, higher dynamic and static pressure intensity, and bearing bush is designed to secter pat, be the casting component, watt body is a carbon steel, and surface alloying layer is a babbit, and the type bearing shell is made by domestic specialized factory.Thrust slide bearing needs to infeed to every bearing shell with high-pressure oil pump the oil of equivalent, form certain thickness oil film, but a large amount of heats that friction power loss produces also need provide fresh oil to cool off, fresh oil is provided by the spray bar that is placed between tile fragment, the status requirement of oil spilling is higher than sliding surface, this just requires lubricated and cooling system complexity, safe and reliable, and cost increases.
Three, because vertical type speed reducer (change gear) complex structure and fault rate height stop the time consuming increase, thereby increase the operation and maintenance cost of equipment, reduced production efficiency.Bear the pressure of milling by hydrostatic thrust bearing, absorb the high axial load that mill processes produces, and should strict filter out iron filings, scum or the hard impurity that easily impacts, in order to avoid impact, its pressurization can not be too high, and general roll-in is 14MPa, makes the power of milling of homotype Vertical Mill on the low side.
Summary of the invention
Technical problem to be solved by this invention provides a kind of simple in structure, vertical roll grinder that manufacturing cost and use cost is low.
The technical solution adopted for the present invention to solve the technical problems is: vertical roll grinder, comprise body, mill device and transmission device, be provided with the adjective-centre structure of determining the centre of gyration between body and the mill device, it is characterized in that: the bottom of mill device is set with circular guideway, the mill device can turn round by circular guideway and be supported on the body, and mill device and transmission device are in transmission connection.
Further be that circular guideway is set to the circular cone to centre of gyration inclination, forms adjective-centre structure between this circular cone and its support.
As the further optimization to technique scheme, the adjective-centre structure that is provided with between body and the mill device is included in the centring means that is connected body and mill device that is provided with on the centre of gyration.
The invention has the beneficial effects as follows: in the bottom of mill device circular guideway is set and is supported in technical scheme on the body owing to adopted, the Vertical Mill new structure of forming a kind of compact conformation in conjunction with adjective-centre structure, because transmission device does not bear the weight of mill and the contour axial load of the pressure of milling, therefore transmission device can adopt general reductor, the structure configuration is compact, the advantage of reliable operation thereby have, can shorten and stop time consuming, reduce the operation and maintenance cost of equipment.Through calculating, compare with adopting vertical type speed reducer (change gear), it is about 20～30% to save one-time investment, can be widely used in cement grinding, slag milling and the processing of cinder grinding.
Description of drawings
Fig. 1 is the structural representation that adopts the vertical roll grinder of vertical type speed reducer (change gear).
Fig. 2 is the structural representation of vertical roll grinder of the present invention.
Fig. 3 is the structural representation of the transmission device of vertical roll grinder of the present invention.
Fig. 4 is that the present invention adopts the structural representation of roller set as rolling element.
Fig. 5 is the echelon sectional view along B-B direction among Fig. 4.
Fig. 6 is the cutaway view along A-A direction among Fig. 4.
Be labeled as among the figure: mill device 1, scraper 2, gear ring 3, centring means 6, transmission device 7, rolling element 8, support 9, body 10, circular guideway 11, back shaft 13, axle 14.
The specific embodiment
The present invention is further described below in conjunction with drawings and Examples.
As Fig. 1～shown in Figure 6, vertical roll grinder of the present invention comprises body 10, mill device 1 and transmission device 7, and mill device 1 is provided with scraper 2.Be provided with the adjective-centre structure of determining the centre of gyration between body 10 and the mill device 1, adjective-centre structure is used to keep mill device 1 to turn round along the centre of gyration, keep the revolution running orbit of mill device 1 constant, thereby guarantee that mill device 1 is along fixing centre of gyration rotation.The bottom of mill device 1 is set with circular guideway 11, and mill device 1 can turn round by circular guideway 11 and be supported on the body 10, and mill device 1 is in transmission connection with transmission device 7.
After adopting said structure,, thereby can adopt common general reductor to realize that deceleration and transmitted power, drive mill rotate because its transmission device 7 does not bear high axial load.For example, transmission device 7 comprises cylinder pinion, bevel gear pair, support, general reductor and motor etc., changes into vertical transmission by the horizontal transmission of bevel gear adjutant, drives 1 running of mill device again, as shown in Figure 3.
Above-mentioned adjective-centre structure can adopt multiple version, play high-speed track centering effect, even mill device 1 is subjected to bigger shock loading like this, the orbital motion track of mill device 1 also will remain unchanged, thereby guarantee that mill device 1 is along fixing centre of gyration rotation.Circular guideway 11 can be the plane, but centrifugal action is arranged during 1 running of mill device, in order to help steadily revolution of mill device 1 running, circular guideway 11 preferably is set to the circular cone to centre of gyration inclination, form adjective-centre structure between this circular cone and its support, thereby make its circular guideway 11 become centripetal type inclined plane.Adjective-centre structure also can adopt the centring means 6 that connection body 10 and mill device 1 are set on the centre of gyration to form, this centring means 6 adopts the form of common bearing pin, the bearing of its bearing pin can be designed to rolling bearing or sliding bearing, also can consider from structure without bearing, as adopt interference fits or matched in clearance, to satisfy the needs of bearing pin rotation.The above-mentioned adjective-centre structure that is formed by adjective-centre structure that will form between the circular guideway 11 of centripetal type circular cone and its support and centring means 6, these two kinds of adjective-centre structures can adopt separately, preferably adopt simultaneously to make its centering better effects if, move more steady.
In the said structure, mill device 1 can turn round by circular guideway 11 and be supported on the body 10, and its supporting form can adopt rolling support, sliding support, static pressure support, dynamic pressure support, dynamic and static pressure composite support and air cushion support etc.For different supporting forms, circular guideway 11 can be made into rolling supporting guide, sliding support guide rail, static pressure supporting guide, dynamic pressure supporting guide, air cushion supporting guide.Be simplified structure, improve functional reliability and reduce manufacturing cost, preferably adopt the form of rolling and supporting, can make its frictional resistance little, the machinery driving efficiency height.
1 rolling of mill device is supported on the form on the body 10, can adopt multiple version to realize, for example adopts the mode of large-scale thrust bearing or 8 supports of employing rolling element etc.The expense of making large-scale thrust bearing is higher, the mode that preferably adopts rolling element 8 to support.For example, the circular guideway 11 on the mill device 1 is supported on the body 10 by at least three rolling elements 8 of circumference, and the support component of rolling element 8 is fixed on the body 10, rolling element 8 bearing and turning guide rails 11, and circular guideway 11 turns round on rolling element 8.
In order further to strengthen the adaptive ability that roller supports, make the running of its mill device 1 more steady, roller can be made into structure with outer ring and inner ring, between outer ring and the inner ring for sphere contacts, thereby make it have effect from aligning.
Because roller will carry weight, weight of material and the grinding roller pressure of mill device 1, also will bear the shock loading in the grinding process, so roller preferably adopts many roller structures.For example: support 9 upper supports have two rollers to constitute roller set, and support 9 can make each roller stress even by axle 14 rotatable being supported on the body 10 like this.
In technique scheme, circular guideway 11 is set to the circular cone to centre of gyration inclination, therefore, when adopting roller as rolling element 8, the outer surface of its roller contacts with circular guideway 11 as supporting surface, therefore, the outer surface of roller should be made as the taper seat adaptive with circular guideway 11.
In order to make its transmission of power steadily reliable, mill device 1 is in transmission connection with transmission device 7 by the gear ring 3 that fixedly installs thereon.
For making the structure configuration compact, gear ring 3 and circular guideway 11 can be made integral body, according to the space structure requirement, the gear ring of engagement or external toothing in being designed to.Gear ring 3, circular guideway 11 both can have been made 1 independent structures with the mill device, also can make the structure that is integrated with mill device 1.In order to make its compact conformation, the ring gear of engagement in gear ring 3 is preferably made and become.Gear ring 3 is arranged on the bottom of mill device 1, and circular guideway 11 is arranged on the bottom surface of gear ring 3, and gear ring 3 tracks can adopt fixedly connected forms such as screw or bolt are connected, welding with the bottom of mill device 1.In order to install and remove conveniently, circular guideway 11 can be made the form of multistage splicing and be fixed on the gear ring 3.
According to the vertical roll grinder power situation, can be set to many cover transmission devices 7,1～3 cover transmission device 7 generally is set satisfies different power demands, for example, the small-power vertical roll grinder is provided with 1 cover transmission device 7 and gets final product, the high-power vertical roller mill can be provided with 2 cover transmission devices 7, for the superpower vertical roll grinder, 3 cover transmission devices 7 can be set.
Claims (12)
1. vertical roll grinder, comprise body (10), mill device (1) and transmission device (7), be provided with the adjective-centre structure of determining the centre of gyration between body (10) and the mill device (1), it is characterized in that: the bottom of mill device (1) is set with circular guideway (11), mill device (1) can turn round by circular guideway (11) and be supported on the body (10), and mill device (1) is in transmission connection with transmission device (7).
2. vertical roll grinder as claimed in claim 1 is characterized in that: circular guideway (11) is set to the circular cone to centre of gyration inclination, forms adjective-centre structure between this circular cone and its support.
3. vertical roll grinder as claimed in claim 2 is characterized in that: the circular guideway (11) on the mill device (1) is supported on the body (10) by at least three rolling elements (8) of circumference, and the support component of rolling element (8) is fixed on the body (10).
4. vertical roll grinder as claimed in claim 3 is characterized in that: rolling element (8) is a roller, and roller is supported on the support (9) by back shaft (13), and support (9) is supported on the body (10).
5. vertical roll grinder as claimed in claim 4 is characterized in that: roller comprises outer ring and inner ring, contacts for sphere between outer ring and the inner ring.
6. as claim 4 or 5 described vertical roll grinders, it is characterized in that: support (9) upper support has two rollers to constitute roller set, and support (9) is supported on the body (10) by spool (14) are rotatable.
7. as claim 4,5 or 6 described vertical roll grinders, it is characterized in that: back shaft (13) is supported on the support (9) by hydrostatic bearing.
8. as claim 4,5,6 or 7 described vertical roll grinders, it is characterized in that: the outer surface of roller for the suitable taper seat of circular cone of circular guideway (11).
9. according to as any described vertical roll grinder of claim in the claim 1～8, it is characterized in that: the adjective-centre structure that is provided with between body (10) and the mill device (1) is included in the centring means (6) that is connected body (10) and mill device (1) that is provided with on the centre of gyration.
10. according to as any described vertical roll grinder of claim in the claim 1～9, it is characterized in that: mill device (1) is in transmission connection with transmission device (7) by the gear ring (3) that fixedly installs thereon.
11. vertical roll grinder as claimed in claim 10 is characterized in that: gear ring (3) is arranged on the bottom of mill device (1), and circular guideway (11) is arranged on the bottom surface of gear ring (3).
12. as claim 10 or 11 described vertical roll grinders, it is characterized in that: gear ring (3) is a ring gear.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2007102026843A CN100563835C (en) | 2006-12-18 | 2007-11-27 | Vertical roll grinder |
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200610022534.X | 2006-12-18 | ||
| CN200610022534 | 2006-12-18 | ||
| CNB2007102026843A CN100563835C (en) | 2006-12-18 | 2007-11-27 | Vertical roll grinder |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101199945A true CN101199945A (en) | 2008-06-18 |
| CN100563835C CN100563835C (en) | 2009-12-02 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2007102026843A Active CN100563835C (en) | 2006-12-18 | 2007-11-27 | Vertical roll grinder |
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| Country | Link |
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| CN (1) | CN100563835C (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103191803A (en) * | 2013-04-19 | 2013-07-10 | 二重集团（德阳）重型装备股份有限公司 | Vertical roller mill |
| CN103908998A (en) * | 2014-04-04 | 2014-07-09 | 安徽科信矿山机械制造有限公司 | Roller mill for mining |
| CN104801399A (en) * | 2014-01-24 | 2015-07-29 | 上海意丰机电科技开发有限公司 | Static pressure rotary support apparatus |
| CN106382358A (en) * | 2016-08-19 | 2017-02-08 | 重庆齿轮箱有限责任公司 | Speed reducer of vertical mill |
| CN109046615A (en) * | 2018-07-20 | 2018-12-21 | 南京西普水泥工程集团有限公司 | The split type drive mechanism of Vertical Mill |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1929912C3 (en) * | 1969-06-12 | 1981-10-15 | Gebr. Pfeiffer Ag, 6750 Kaiserslautern | Vertical roller mill with revolving grinding pan |
| DE2703535C2 (en) * | 1977-01-28 | 1986-07-10 | Loesche GmbH, 4000 Düsseldorf | Roller mill |
| CN1034914C (en) * | 1994-07-22 | 1997-05-21 | 宇部兴产株式会社 | A vertical type roller mill |
| JP3309585B2 (en) * | 1994-09-20 | 2002-07-29 | 株式会社日立製作所 | Mill reducer and mill equipped with this reducer |
| CN2619716Y (en) * | 2003-06-27 | 2004-06-09 | 沈阳工业学院 | Conic crusher |
| JP2005052800A (en) * | 2003-08-07 | 2005-03-03 | Seisa Gear Ltd | Gear device for vertical crushing machine |
| CN2805925Y (en) * | 2005-04-28 | 2006-08-16 | 沈阳重型机械集团有限责任公司 | Large-sized vertical roll mill |
-
2007
- 2007-11-27 CN CNB2007102026843A patent/CN100563835C/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103191803A (en) * | 2013-04-19 | 2013-07-10 | 二重集团（德阳）重型装备股份有限公司 | Vertical roller mill |
| CN104801399A (en) * | 2014-01-24 | 2015-07-29 | 上海意丰机电科技开发有限公司 | Static pressure rotary support apparatus |
| CN103908998A (en) * | 2014-04-04 | 2014-07-09 | 安徽科信矿山机械制造有限公司 | Roller mill for mining |
| CN106382358A (en) * | 2016-08-19 | 2017-02-08 | 重庆齿轮箱有限责任公司 | Speed reducer of vertical mill |
| CN109046615A (en) * | 2018-07-20 | 2018-12-21 | 南京西普水泥工程集团有限公司 | The split type drive mechanism of Vertical Mill |
Also Published As
| Publication number | Publication date |
|---|---|
| CN100563835C (en) | 2009-12-02 |
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Effective date of registration: 20180320 Address after: 618013 Deyang Pearl River West Road, Sichuan, No. 460 Patentee after: Double (Deyang) heavy equipment Co., Ltd. Address before: 618013 Deyang Pearl River West Road, Sichuan, No. 460 Patentee before: Erzhong Group (Deyang) Heavy Equipment Co., Ltd. |
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