CN103982447B - Compound thrust disc - Google Patents
Compound thrust disc Download PDFInfo
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- CN103982447B CN103982447B CN201410240282.2A CN201410240282A CN103982447B CN 103982447 B CN103982447 B CN 103982447B CN 201410240282 A CN201410240282 A CN 201410240282A CN 103982447 B CN103982447 B CN 103982447B
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- thrust disc
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- pure iron
- iron sheet
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Abstract
The present invention discloses a kind of compound thrust disc, comprise discoideus thrust disc skeleton, rivet and the thrust disc electromagnetic pure iron sheet be installed on by rivet on thrust disc skeleton, thrust disc skeleton be provided with one run through this thrust disc skeleton front and rear surfaces and with the concentric circular hole in the center of circle of this thrust disc skeleton in order to be connected rotor shaft, be recessed to form respectively in front surface and the corresponding position on rear surface of thrust disc skeleton shape consistent and the first groove be not connected and the second groove, described first groove and the second groove are all concentric with the center of circle of thrust disc skeleton, thrust disc electromagnetic pure iron sheet includes two pieces that are installed on respectively in the first groove and the second groove, the structure of thrust disc electromagnetic pure iron sheet is consistent to make described thrust disc electromagnetic pure iron sheet just in time be arranged in the first groove and the second groove with the shape of the first groove and the second groove, described rivet include for connect described thrust disc electromagnetic pure iron sheet and thrust disc skeleton and several of uniform intervals arrangement.
Description
Technical field:
The present invention relates to a kind of compound thrust disc, refer in particular to a kind of compound thrust disc on axial magnetic bearing.
Background technique:
In existing magnetic suspension air blower, because thrust disc needs with the magnetic field interaction of magnetic bearing to reach the axial displacement controlling magnetic suspension rotor axle, the effect carrying axial force, so often use the electromagnetic pure iron material that permeability is high, remanent magnetism is little, but the mechanical property of electromagnetic pure iron is poor, in using, often there is the fault of thrust disc distortion, collision magnetic bearing.In another magnetic bearing, thrust disc often uses carbon steel or the manufacture of high strength magnet steel, but the electromagnetic performance of carbon steel is poor, need higher magnetic bearing electric current, namely can consume more electric energy, produce higher heating, high strength magnet steel is expensive simultaneously, and has high requirements to heat treatment process.
Therefore, necessary the deficiency solving prior art is improved to prior art.
Summary of the invention:
The present invention is directed to the deficiencies in the prior art, a kind of existing better electromagnetic performance is provided, has compound thrust disc compared with high-mechanical property again.
The present invention adopts following technological scheme: a kind of compound thrust disc, it comprises discoideus thrust disc skeleton, rivet and the thrust disc electromagnetic pure iron sheet be installed on by rivet on thrust disc skeleton, described thrust disc skeleton be provided with one run through this thrust disc skeleton front and rear surfaces and the circular hole concentric with the center of circle of described thrust disc skeleton, be recessed to form respectively in front surface and the corresponding position on rear surface of described thrust disc skeleton shape consistent and circle first groove be not connected and circular second groove, described first groove and the second groove are all concentric with the center of circle of described thrust disc skeleton, described thrust disc electromagnetic pure iron sheet includes two pieces that are installed on respectively in the first groove and the second groove, the structure of described thrust disc electromagnetic pure iron sheet is consistent to make described thrust disc electromagnetic pure iron sheet just in time be arranged in the first groove and the second groove with the shape of described first groove and the second groove, described rivet include for connect described thrust disc electromagnetic pure iron sheet and thrust disc skeleton and several of uniform intervals arrangement.
Further, described rivet includes four altogether, and is evenly spacedly installed on described thrust disc electromagnetic pure iron sheet.
Further, described four rivets take forward installation, oppositely installation successively, forward is installed, thrust disc electromagnetic pure iron sheet is fixedly installed on thrust disc skeleton by the mode of oppositely installation.The object taking positive and negative alternate to install is to ensure that both sides thrust disc electromagnetic pure iron sheet all can firmly be arranged on thrust disc skeleton.
Further, a segment distance is had all separately between described first groove and the outward edge of thrust disc skeleton and the edge of through hole, also a segment distance is had all separately between described second groove and the outward edge of thrust disc skeleton and the edge of through hole, and then utilize location, the cylndrical surface thrust disc pure iron sheet of thrust disc skeleton edges, ensure the dynamic balance performance of compound thrust disc.
Further, described thrust disc skeleton is formed by high-temperature alloy material manufacture, to ensure compound thrust disc intensity.
The present invention has following beneficial effect:
(1). the higher and non-magnetic refractory alloy of the thrust disc skeleton intensity of compound thrust disc of the present invention manufactures, fix with it the requirement that thrust disc electromagnetic pure iron sheet just can meet machinery and electromagnetism two aspect simultaneously, the price of this bi-material is all low than high strength magnet steel simultaneously;
(2). be interference fit between thrust disc skeleton and thrust disc electromagnetic pure iron sheet, and with four rivets, both be fixed up, and then guarantee to connect between the two fastening;
(3). thrust disc skeleton and thrust disc electromagnetic pure iron sheet are all coordinated by cylindrical interference with the connection between rotor shaft locates, and can ensure the concentricity of installing preferably, avoid the dynamic balance performance affecting high speed magnetic suspended rotor;
(4). rotor shaft material therefor hardness is all higher usually, is installed on rotor shaft, can repeatedly installs and removes rotor and can not damage fitting surface with the refractory alloy of better mechanical property as the interference of thrust disc skeleton.
Accompanying drawing illustrates:
Fig. 1 is the plan view of compound thrust disc of the present invention.
Fig. 2 is the sectional view of the thrust disc of compound shown in Fig. 1.
Wherein:
1-thrust disc skeleton, 10-circular hole; 2-thrust disc electromagnetic pure iron sheet; 3-rivet.
Embodiment:
Please refer to shown in Fig. 1 and Fig. 2, compound thrust disc of the present invention comprises and has certain thickness discoideus thrust disc skeleton 1, thrust disc skeleton 1 is provided with the circular hole 10 that runs through this thrust disc skeleton 1 front and rear surfaces, and wherein the center of circle of this circular hole 10 is concentric with the center of circle of thrust disc skeleton 1.Be recessed to form circular first groove (sign) at the front surface of thrust disc skeleton 1, the center of circle of the first groove is concentric with the center of circle of thrust disc skeleton 1 and have a segment distance all separately between the outward edge of this first groove and thrust disc skeleton 1 and the edge of through hole 10.Similarly, position corresponding with circular first groove on the rear surface of thrust disc skeleton 1 is also recessed to form one and consistent circle second groove (sign) of first shape of groove, this second groove is not connected with the first groove, the rest may be inferred, and the center of circle of the second groove is concentric with the center of circle of thrust disc skeleton 1 and also have a segment distance all separately between the outward edge of this second groove and thrust disc skeleton 1 and the edge of through hole 10.
Thrust disc electromagnetic pure iron sheet 2 includes two pieces that are installed in the first groove and the second groove altogether, and the structure of thrust disc electromagnetic pure iron sheet 2 is consistent with the shape of the first groove and the second groove, and then thrust disc electromagnetic pure iron sheet 2 can be guaranteed just in time to be arranged in the first groove and the second groove.
The present invention is provided with four rivets 3 by uniform intervals on thrust disc electromagnetic pure iron sheet 2 and then is fixedly installed on thrust disc skeleton 1 by thrust disc electromagnetic pure iron sheet 2.Wherein these four rivets 3 take forward installation, oppositely installation successively, forward is installed, thrust disc electromagnetic pure iron sheet 2 is fixedly installed on thrust disc skeleton 1 by the mode of oppositely installation.
Higher and the non-magnetic refractory alloy of the thrust disc skeleton intensity of compound thrust disc of the present invention manufactures, fix with it the requirement that thrust disc electromagnetic pure iron sheet just can meet machinery and electromagnetism two aspect simultaneously, the price of this bi-material is all low than high strength magnet steel simultaneously.Be interference fit between thrust disc skeleton simultaneously in compound thrust disc of the present invention and thrust disc electromagnetic pure iron sheet, and with four rivets, both be fixed up, so guarantee to connect between the two fastening.
The above is only the preferred embodiment of the present invention, it should be pointed out that for those skilled in the art, can also make some improvement under the premise without departing from the principles of the invention, and these improvement also should be considered as protection scope of the present invention.
Claims (5)
1. a compound thrust disc, it is characterized in that: comprise discoideus thrust disc skeleton (1), rivet (3) and the thrust disc electromagnetic pure iron sheet (2) be installed on by rivet (3) on thrust disc skeleton (1), described thrust disc skeleton (1) be provided with one run through this thrust disc skeleton (1) front and rear surfaces and the circular hole (10) concentric with the center of circle of described thrust disc skeleton (1), be recessed to form respectively in front surface and the corresponding position on rear surface of described thrust disc skeleton (1) shape consistent and the first groove of the circle be not connected and the second circular groove, described first groove and the second groove are all concentric with the center of circle of described thrust disc skeleton (1), described thrust disc electromagnetic pure iron sheet (2) includes two pieces that are installed on respectively in the first groove and the second groove, the structure of described thrust disc electromagnetic pure iron sheet (2) is consistent to make described thrust disc electromagnetic pure iron sheet (2) just in time be arranged in the first groove and the second groove with the shape of described first groove and the second groove, described rivet (3) include for connect described thrust disc electromagnetic pure iron sheet (2) and thrust disc skeleton (1) and several of uniform intervals arrangement.
2. compound thrust disc as claimed in claim 1, is characterized in that: described rivet (3) includes four altogether, and is evenly spacedly installed on described thrust disc electromagnetic pure iron sheet (2).
3. compound thrust disc as claimed in claim 2, is characterized in that: described four rivets (3) take forward installation, oppositely installation successively, forward is installed, thrust disc electromagnetic pure iron sheet (2) is fixedly installed on thrust disc skeleton (1) by the mode of oppositely installation.
4. compound thrust disc as claimed in claim 3, it is characterized in that: between the outward edge of described first groove and thrust disc skeleton (1) and the edge of through hole (10), have a segment distance all separately, between the outward edge of described second groove and thrust disc skeleton (1) and the edge of through hole (10), also have a segment distance all separately.
5. as the compound thrust disc in claim 1-4 as described in any one, it is characterized in that: described thrust disc skeleton (1) is formed by high-temperature alloy material manufacture.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410240282.2A CN103982447B (en) | 2014-05-30 | 2014-05-30 | Compound thrust disc |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410240282.2A CN103982447B (en) | 2014-05-30 | 2014-05-30 | Compound thrust disc |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103982447A CN103982447A (en) | 2014-08-13 |
| CN103982447B true CN103982447B (en) | 2016-04-06 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410240282.2A Active CN103982447B (en) | 2014-05-30 | 2014-05-30 | Compound thrust disc |
Country Status (1)
| Country | Link |
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| CN (1) | CN103982447B (en) |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5567129A (en) * | 1995-05-25 | 1996-10-22 | Bonardi; G. Fonda | Thrust control system for gas-bearing turbocompressors |
| ATE421647T1 (en) * | 2005-08-24 | 2009-02-15 | Mecos Traxler Ag | ROTOR SHAFT FOR A MAGNETIC BEARING DEVICE |
| CN101398032A (en) * | 2008-10-30 | 2009-04-01 | 上海大学 | Axial magnetic thrust bearing |
| CN103196671B (en) * | 2013-03-01 | 2015-12-09 | 北京中科科仪股份有限公司 | A kind of maglev molecular pump radial direction protection bearing detecting device and method |
| CN203892212U (en) * | 2014-05-30 | 2014-10-22 | 南京磁谷科技有限公司 | Composite thrust plate |
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2014
- 2014-05-30 CN CN201410240282.2A patent/CN103982447B/en active Active
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| CN103982447A (en) | 2014-08-13 |
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Address after: 211102 No.99, Jinxin Middle Road, Jiangning District, Nanjing City, Jiangsu Province Patentee after: Nanjing Cigu Technology Co., Ltd Address before: Nine No. 211102 Bamboo Road, Jiangning Development Zone, Nanjing, Jiangsu, 100 Patentee before: NANJING CIGU LIMITED Corp. |
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