CN101619745B - Force-bearing device capable of bearing large axial load - Google Patents
Force-bearing device capable of bearing large axial load Download PDFInfo
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- CN101619745B CN101619745B CN2008100121354A CN200810012135A CN101619745B CN 101619745 B CN101619745 B CN 101619745B CN 2008100121354 A CN2008100121354 A CN 2008100121354A CN 200810012135 A CN200810012135 A CN 200810012135A CN 101619745 B CN101619745 B CN 101619745B
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- bearing
- axial
- axial load
- large axial
- fixed
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Abstract
The invention relates to a force-bearing device capable of bearing large axial load, which comprises the following parts: a thrust plate (2), inclined planes (3), a stator magnetic pole (4) and an antifriction lining (6), wherein the thrust plate (2) is fixed on a rotating shaft (1), and the stator magnetic pole (4) is fixed on a machine case (5); an axial clearance delta 1 and an axial clearancedelta 2 are formed on two sides of the thrust plate (2) respectively along the axial direction between the thrust plate (2) and the stator magnetic pole (4); and the antifriction lining (6) is fixed on an inner ring of a rolling bearing (7), and an axial clearance delta 1 and an axial clearance delta 2 are formed between the two force-bearing inclined planes (3) arranged on the two axial sides ofthe antifriction lining (6) and the antifriction lining (6) between the two force-bearing inclined planes (3) respectively. The force-bearing device has obviously higher reliability, can bear 7 tons of axial impact load and has great economic and social values.
Description
Technical field
The present invention relates to machine science, a kind of bearing that bears large axial load is provided especially.
Background technique
In the prior art, the device or the structural member that bear axial force have a lot, for example thrust bearing, sleeve, the multidiameter shaft shaft shoulder etc.But for resisting the but seldom raising of device (for example instantaneous auxiliary device that can bear 7 tons of axial forces) that very large axial load is impacted, prior art does not have corresponding solution yet.
People catch at a kind of technique effect better can bear the more bearing of large axial load impact.
Summary of the invention
The purpose of this invention is to provide a kind of bearing that can bear the large axial load impact.
The present invention specifically provides a kind of bearing that bears large axial load, and it can be installed between casing 5 and the rotating shaft 1; It is characterized in that: the described bearing that bears large axial load includes following a few part: thrust disc 2, tapered plane 3, stator magnetic pole 4, anti-attrition lining 6; Wherein:
Thrust disc 2 is fixed in the rotating shaft 1, and stator magnetic pole 4 is fixed on the casing 5;
Between thrust disc 2 and the stator magnetic pole 4 vertically the both sides at thrust disc 2 leave the axial clearance Δ respectively
1, Δ
2, and satisfy Δ in normal working conditions
1With Δ
2Substantially equal;
Anti-attrition lining 6 is fixed on the inner ring of rolling bearing 7, and anti-attrition lining 6 is arranged in rotating shaft 1 outside and forms sliding friction with it; Be arranged between the tapered plane 3 of two loads of anti-attrition lining 6 axial both sides in the rotating shaft 1 and its anti-attrition lining 6 between the two and have axial clearance δ respectively
1, δ
2, and satisfy δ in normal working conditions
1With δ
2Substantially equal;
In addition, also include latch plate 8 and distance ring 9 in the described bearing that bears large axial load;
Described latch plate 8 is for being fixed on the annular structural part on rolling bearing 7 outer rings, distance ring 9 is fixed on the static part casing 5 of whole bearing outside, in the course of normal operation after assembling, distance ring 9 is generally axially symmetric structure, and latch plate 8 is fixed on the static part casing 5 of whole bearing outside by distance ring 9;
Latch plate 8 is arranged in distance ring 9 inside, and latch plate 8 respectively and be arranged between the distance ring 9 of axial both sides of rotating shaft 1 and have axial clearance α
1, α
2, and satisfy α in normal working conditions
1With α
2Substantially equal.
Preferred content of bearing the bearing of large axial load of the present invention also comprises: at the total axial displacement ∑=δ of movement process rotor
2+ α
1+ bearing resiliently deformable and axial internal clearance require must be less than Δ
1Further preferred range is: at the total axial displacement ∑=δ of movement process rotor
2+ α
1+ bearing resiliently deformable and axial internal clearance=0.5 Δ
1～0.95 Δ
1Optimum numerical value is defined as through overtesting: ∑=δ
2+ α
1+ bearing resiliently deformable and axial internal clearance ≈ 0.7 Δ
1
Other preferred content of bearing the bearing of large axial load of the present invention also comprises:
Axial clearance Δ described in the described bearing that bears large axial load
1, Δ
2, δ
1, δ
2, α
1, α
2, magnitude range be 0～15mm;
The described bearing that bears large axial load also satisfies one of following feature or its combination: one, and described rolling bearing 7 is the rolling bearing of two-way thrust; Its two, described stator magnetic pole 4 has the dicyclo cavity configuration; Its three, described two tapered planes that are arranged in anti-attrition lining 6 axial both sides 3 are the big ring structure of the little inner ring size of outer ring size, angle of inclination, inclined-plane and axial direction are 20 °～90 ° angles;
The area dimension width radially that can form the friction fit face between described latch plate 8 and the distance ring 9 is 2～200mm., it is characterized in that:
Working principle of the present invention is: when rotor contacts anti-attrition lining 6 in a flash, its sliding pair consumes a part of impact kinetic energy, remaining impact kinetic energy passes to overcoat by rolling element, consume a part of kinetic energy again through latch plate 8 distortion, pass to the supplemental support that kinetic energy on the stator will be significantly less than other form at last.
The present invention compares with prior art and has the following advantages:
1, because the stator magnetic pole 4 in dicyclo chamber can produce bigger magnetic force with respect to the stator magnetic pole 4 in general monocycle chamber, the volumetric force of the feasible thrust disc 2 that rotates obviously reduces, and reduces 40% approximately, and then has improved the reliability of thrust magnetic bearing.
2, when bearing breaks down, 7 tons axial force at first produces relative movement on anti-attrition lining 6, consume portion of energy, drives rolling bearing 7 again and rotates, pass at last on the casing 5 by latch plate 8 buffering consumed energies, supporting rotor and avoiding bearing to damage.
3 just because of above-mentioned advantage just makes the bearing new technology can promote the use of on big machinery, and it has inevitable huge economic and social value.
Description of drawings
The present invention is further detailed explanation below in conjunction with drawings and the embodiments:
Fig. 1 is for bearing the bearing and the peripheral equipment structural principle schematic representation of large axial load.
Embodiment
The implication of each number designation is as follows in the accompanying drawing:
Stationary axle is to thrust disc 2 in the rotating shaft 1, and the tapered plane 3 of two loads is arranged at an end of axle.The stator magnetic pole 4 in band dicyclo chamber is fixed on the casing 5, and and thrust disc 2 between remain with the axial clearance Δ
1, Δ
2, and satisfy Δ
1=Δ
2, the band inclined-plane anti-attrition lining 6 be fixed on rolling bearing 7 in put, under normal circumstances and between the two load tapered planes 3 in the rotating shaft 1 axial clearance δ is arranged
1, δ
2, and δ is arranged
1=δ
2The overcoat of bearing 7 is fixed on the latch plate 8, and latch plate 8 is fixed on the distance ring 9, under normal circumstances between latch plate 8 and the distance ring 9 axial clearance α is arranged
1, α
2, and α is arranged
1=α
2, distance ring 9 is fixed on the casing 5.
When bearing was in normal working, under the effect of dicyclo chamber stator magnetic pole 4 magnetic forces, thrust button was in two stator magnetic poles, 4 middles.That is Δ
1=Δ, δ
1=δ
2, α
1=α
2After bearing is suddenly malfunctioning, i.e. magnetic field diminishes, then rotor moment moves to left, and then the inclined-plane 3 of rotor right-hand member at first contact with the inclined-plane on anti-attrition lining 6 the right, at this moment δ
2=0, and produce relatively circumferentially and slide, play the power consumption buffer function, dump energy drives rolling bearing 7 and rotates, and drives latch plate 8 and move to left, and produces resiliently deformable, and the power consumption buffering contacts with distance ring 9 up to latch plate 8, at this moment δ
1=0, at last with on the axial force transmission casing 5.At the total axial displacement ∑ δ of movement process rotor
2+ α
1+ bearing resiliently deformable and axial internal clearance＜Δ
1, design load ∑=0.7 Δ
1, or Δ
2, so both protected thrust bearing not come in contact friction damage, protected rolling bearing 7 that instantaneous welding does not take place again simultaneously.
Embodiment 2
A kind of bearing that bears large axial load, it can be installed between casing 5 and the rotating shaft 1; It is characterized in that: the described bearing that bears large axial load includes following a few part: thrust disc 2, tapered plane 3, stator magnetic pole 4, anti-attrition lining 6; Wherein:
Thrust disc 2 is fixed in the rotating shaft 1, and stator magnetic pole 4 is fixed on the casing 5;
Between thrust disc 2 and the stator magnetic pole 4 vertically the both sides at thrust disc 2 leave the axial clearance Δ respectively
1, Δ
2, and satisfy Δ in normal working conditions
1With Δ
2Substantially equal;
Anti-attrition lining 6 is fixed on the inner ring of rolling bearing 7, and anti-attrition lining 6 is arranged in rotating shaft 1 outside and forms sliding friction with it; Be arranged between the tapered plane 3 of two loads of anti-attrition lining 6 axial both sides in the rotating shaft 1 and its anti-attrition lining 6 between the two and have axial clearance δ respectively
1, δ
2, and satisfy δ in normal working conditions
1With δ
2Substantially equal;
In addition, also include latch plate 8 and distance ring 9 in the described bearing that bears large axial load;
Described latch plate 8 is fixed on annular structural part on rolling bearing 7 outer rings for its inner ring, totally two of latch plates 8, axial arranged along rotating shaft 1; The outside at two latch plates 8 is provided with spacer 11 each other, and described spacer 11 is fixed on the coolant jacket 10.Distance ring 9 is fixed on the casing 5, and in the course of normal operation after assembling, distance ring 9 is an axially symmetric structure, and latch plate 8 outer rings are fixed on coolant jacket 10 and the casing 5 by distance ring 9;
Latch plate 8 is arranged in distance ring 9 inside, and latch plate 8 respectively and be arranged between the distance ring 9 of axial both sides of rotating shaft 1 and have axial clearance α
1, α
2, and satisfy α in normal working conditions
1With α
2Substantially equal.
Static part casing 5 inboards in described bearing outside also are fixed with coolant jacket 10.
The described preferred content of bearing the bearing of large axial load of present embodiment also comprises: at the total axial displacement ∑=δ of movement process rotor
2+ α
1+ bearing resiliently deformable and axial internal clearance require must be less than Δ
1Concrete numerical value can be ∑=δ
2+ α
1+ bearing resiliently deformable and axial internal clearance ≈ 0.7 Δ
1
Axial clearance Δ described in the described bearing that bears large axial load
1, Δ
2, δ
1, δ
2, α
1, α
2, magnitude range be 0～8mm;
The described bearing that bears large axial load also satisfies one of following feature or its combination: one, and described rolling bearing 7 is the rolling bearing of two-way thrust; Its two, described stator magnetic pole 4 has the dicyclo cavity configuration; Its three, described two tapered planes that are arranged in anti-attrition lining 6 axial both sides 3 are the big ring structure of the little inner ring size of outer ring size, angle of inclination, inclined-plane and anti-attrition lining 6 axial directions are 45 ° of angles;
The area dimension width radially that can form the friction fit face between described latch plate 8 and the distance ring 9 is 90mm.
Embodiment 3
The present embodiment content is substantially the same manner as Example 2, and its difference mainly is:
The described bearing of large axial load that bears is at the total axial displacement ∑=δ of movement process rotor
2+ α
1+ bearing resiliently deformable and axial internal clearance require must be less than Δ
1Concrete scope is: at the total axial displacement ∑=δ of movement process rotor
2+ α
1+ bearing resiliently deformable and axial internal clearance=0.5 Δ
1
Described other preferred content of bearing the bearing of large axial load also comprises:
Axial clearance Δ described in the described bearing that bears large axial load
1, Δ
2, δ
1, δ
2, α
1, α
2, magnitude range be 0～15mm;
The described bearing that bears large axial load also satisfies one of following feature or its combination: one, and described rolling bearing 7 is the rolling bearing of two-way thrust; Its two, described stator magnetic pole 4 has the dicyclo cavity configuration; Its three, described two tapered planes that are arranged in anti-attrition lining 6 axial both sides 3 are the big ring structure of the little inner ring size of outer ring size, angle of inclination, inclined-plane and its axial direction are 20 ° of angles;
The area dimension width radially that can form the friction fit face between described latch plate 8 and the distance ring 9 is 200mm.
Embodiment 4
The present embodiment content is substantially the same manner as Example 2, and its difference mainly is:
The described bearing of large axial load that bears is at the total axial displacement ∑=δ of movement process rotor
2+ α
1+ bearing resiliently deformable and axial internal clearance require must be less than Δ
1Concrete scope is: at the total axial displacement ∑=δ of movement process rotor
2+ α
1+ bearing resiliently deformable and axial internal clearance=0.95 Δ
1
Described other preferred content of bearing the bearing of large axial load also comprises:
Axial clearance Δ described in the described bearing that bears large axial load
1, Δ
2, δ
1, δ
2, α
1, α
2, magnitude range be 0～2mm;
The described bearing that bears large axial load also satisfies one of following feature or its combination: one, and described rolling bearing 7 is the rolling bearing of two-way thrust; Its two, described stator magnetic pole 4 has the dicyclo cavity configuration; Its three, described two tapered planes that are arranged in anti-attrition lining 6 axial both sides 3 are the big ring structure of the little inner ring size of outer ring size, angle of inclination, inclined-plane and its axial direction are 90 ° of angles;
The area dimension width radially that can form the friction fit face between described latch plate 8 and the distance ring 9 is 2mm.
Claims (6)
1. bearing that can bear large axial load, it is characterized in that: the described bearing that bears large axial load includes following a few part: thrust disc (2), tapered plane (3), stator magnetic pole (4), anti-attrition lining (6); Wherein:
Thrust disc (2) is fixed in the rotating shaft (1), and stator magnetic pole (4) is fixed on the casing (5);
Leave the axial clearance Δ respectively in the both sides of thrust disc (2) vertically between thrust disc (2) and the stator magnetic pole (4)
1, Δ
2, and satisfy Δ in normal working conditions
1With Δ
2Substantially equal;
Anti-attrition lining (6) is fixed on the inner ring of rolling bearing (7), is arranged in anti-attrition lining (6) and axially has axial clearance δ respectively between the tapered plane (3) of two loads of both sides and its anti-attrition lining (6) between the two
1, δ
2
Also include latch plate (8) and distance ring (9) in the described bearing that bears large axial load;
Described latch plate (8) is for being fixed on the annular structural part on rolling bearing (7) outer ring, distance ring (9) is fixed on the static part of whole bearing outside, and latch plate (8) is fixed on the static part of whole bearing outside by distance ring (9);
Latch plate (8) is arranged in distance ring (9) inside, and latch plate (8) respectively and be arranged between the distance ring (9) of axial both sides of rotating shaft (1) and have axial clearance α
1, α
2
Total axial displacement ∑=δ in the bearing permission that can bear large axial load described in the movement process
2+ α
1+ bearing resiliently deformable and axial internal clearance require must be less than Δ
1
2. according to the described bearing that bears large axial load of claim 1, it is characterized in that: at total axial displacement ∑=δ of the bearing permission that can bear large axial load described in the movement process
2+ α
1+ bearing resiliently deformable and axial internal clearance=0.5 Δ
1～0.95 Δ
1
3. according to the described bearing that bears large axial load of claim 2, it is characterized in that: at total axial displacement ∑=δ of the bearing permission that can bear large axial load described in the movement process
2+ α
1+ bearing resiliently deformable and axial internal clearance=0.7 Δ
1
4. according to the described bearing that bears large axial load of claim 1, it is characterized in that:
Axial clearance Δ described in the described bearing that bears large axial load
1, Δ
2, δ
1, δ
2, α
1, α
2, magnitude range all be 0～15mm.
5. according to the described bearing that bears large axial load of claim 1, it is characterized in that: the described bearing that bears large axial load also satisfies one of following feature or its combination:
One, described rolling bearing (7) is the rolling bearing of two-way thrust; Its two, described stator magnetic pole (4) has the dicyclo cavity configuration; Its three, described be arranged in anti-attrition lining (6) axially two tapered planes (3) of both sides be the big ring structure of the little inner ring size of outer ring size, angle of inclination, inclined-plane and axial direction are 20 °～90 ° angles.
6. according to the described bearing that bears large axial load of claim 2, it is characterized in that: the friction fit face dimension width radially that can form between described latch plate (8) and the distance ring (9) is 2～200mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008100121354A CN101619745B (en) | 2008-07-04 | 2008-07-04 | Force-bearing device capable of bearing large axial load |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008100121354A CN101619745B (en) | 2008-07-04 | 2008-07-04 | Force-bearing device capable of bearing large axial load |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101619745A CN101619745A (en) | 2010-01-06 |
| CN101619745B true CN101619745B (en) | 2011-02-02 |
Family
ID=41513117
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2008100121354A Expired - Fee Related CN101619745B (en) | 2008-07-04 | 2008-07-04 | Force-bearing device capable of bearing large axial load |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101619745B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107971625B (en) * | 2017-11-24 | 2020-04-10 | 中国航发沈阳黎明航空发动机有限责任公司 | Special method for adjusting coaxiality of spindle side and tailstock side of inertia friction welding machine |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1992015795A1 (en) * | 1991-02-27 | 1992-09-17 | Leybold Aktiengesellschaft | Magnetic-bearing cell |
| EP0736696A1 (en) * | 1995-04-07 | 1996-10-09 | AEROSPATIALE Société Nationale Industrielle | Miniature magnetic bearing with at least one active axle |
| CN1487203A (en) * | 2003-05-21 | 2004-04-07 | 沈阳黎明航空发动机（集团）有限责任 | Axial-flow blower |
| CN1587712A (en) * | 2004-09-17 | 2005-03-02 | 沈阳黎明航空发动机(集团)有限责任公司 | Axial fan using electromagnetic bearing |
| CN101092990A (en) * | 2007-07-13 | 2007-12-26 | 南京航空航天大学 | Permanent magnet biased axial magnetic suspension bearing |
| CN201236890Y (en) * | 2008-07-04 | 2009-05-13 | 沈阳黎明航空发动机(集团)有限责任公司 | Force-bearing apparatus capable of bearing large axial load |
-
2008
- 2008-07-04 CN CN2008100121354A patent/CN101619745B/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1992015795A1 (en) * | 1991-02-27 | 1992-09-17 | Leybold Aktiengesellschaft | Magnetic-bearing cell |
| EP0736696A1 (en) * | 1995-04-07 | 1996-10-09 | AEROSPATIALE Société Nationale Industrielle | Miniature magnetic bearing with at least one active axle |
| CN1487203A (en) * | 2003-05-21 | 2004-04-07 | 沈阳黎明航空发动机（集团）有限责任 | Axial-flow blower |
| CN1587712A (en) * | 2004-09-17 | 2005-03-02 | 沈阳黎明航空发动机(集团)有限责任公司 | Axial fan using electromagnetic bearing |
| CN101092990A (en) * | 2007-07-13 | 2007-12-26 | 南京航空航天大学 | Permanent magnet biased axial magnetic suspension bearing |
| CN201236890Y (en) * | 2008-07-04 | 2009-05-13 | 沈阳黎明航空发动机(集团)有限责任公司 | Force-bearing apparatus capable of bearing large axial load |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101619745A (en) | 2010-01-06 |
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| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
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| C14 | Grant of patent or utility model | ||
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Granted publication date: 20110202 Termination date: 20160704 |