CN106907398B - Bearing support device for high-speed rotating shaft - Google Patents
Bearing support device for high-speed rotating shaft Download PDFInfo
- Publication number
- CN106907398B CN106907398B CN201710299503.7A CN201710299503A CN106907398B CN 106907398 B CN106907398 B CN 106907398B CN 201710299503 A CN201710299503 A CN 201710299503A CN 106907398 B CN106907398 B CN 106907398B
- Authority
- CN
- China
- Prior art keywords
- rotating shaft
- bearing
- bushing
- bearing support
- sleeve
- 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.)
- Active
Links
- 230000000712 assembly Effects 0.000 claims abstract description 4
- 238000000429 assembly Methods 0.000 claims abstract description 4
- 210000004907 gland Anatomy 0.000 claims description 20
- 239000007788 liquid Substances 0.000 claims description 14
- 239000000110 cooling liquid Substances 0.000 claims description 9
- 238000007789 sealing Methods 0.000 claims description 4
- 238000009434 installation Methods 0.000 description 6
- 230000002035 prolonged effect Effects 0.000 description 6
- 238000004519 manufacturing process Methods 0.000 description 3
- 239000000843 powder Substances 0.000 description 3
- 239000002184 metal Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 230000003628 erosive effect Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000004663 powder metallurgy Methods 0.000 description 1
- 238000010298 pulverizing process Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C35/00—Rigid support of bearing units; Housings, e.g. caps, covers
- F16C35/08—Rigid support of bearing units; Housings, e.g. caps, covers for spindles
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C37/00—Cooling of bearings
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16J—PISTONS; CYLINDERS; SEALINGS
- F16J15/00—Sealings
- F16J15/16—Sealings between relatively-moving surfaces
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Sliding-Contact Bearings (AREA)
- Mounting Of Bearings Or Others (AREA)
Abstract
The invention discloses a bearing support device for a high-speed rotating shaft, which comprises a sleeve with a hollow structure and a bushing arranged in the sleeve, wherein a mounting channel for mounting the rotating shaft is formed in the bushing, bearing support assemblies for supporting the rotating shaft are arranged on the bushing and near the two ends of the mounting channel, and each bearing support assembly consists of a plurality of bearing support units uniformly distributed along the circumferential direction of the mounting channel; the bearing support unit comprises a mandrel fixedly mounted on the bushing and a bearing sleeved on the mandrel, wherein the diameter of an inscribed circle among the bearings is smaller than that of a radial circle of the mounting channel. The invention adopts the sliding mode of the rotating shaft and the plurality of bearing outer rings to support the rotating shaft, reduces the contact area between the bearing and the rotating shaft, reduces the friction between the bearing and the rotating shaft, and prolongs the service life of the bearing.
Description
Technical Field
The invention belongs to the technical field of powder metallurgy equipment, and particularly relates to a bearing supporting device for a high-speed rotating shaft in plasma rotating electrode powder manufacturing equipment.
Background
The plasma rotary electrode pulverizing method is to melt the front end of a high-speed rotary metal bar by a plasma beam, and then throw out molten liquid drops by the centrifugal force of the high-speed rotation of the metal bar, and atomize and cool the molten liquid drops into powder.
The plasma rotary powder making equipment on the market at present consists of an atomizing chamber with the diameter of about 2-3 meters, a rotary shaft is arranged in the atomizing chamber through a dynamic seal bearing, the rotary shaft is positioned at the central line of the atomizing chamber, the rotary speed is up to 15000 r/min-20000 r/min, but most dynamic seal bearing supporting structures still depend on the traditional bearing supporting structures, namely, the rotary shaft is arranged in the bearing inner ring, and the rotary shaft is supported by two points of the bearing to realize rotation. However, in the practical use process, the rotation speed of the rotating shaft is too high, so that the problem of short service life of the bearing exists in the supporting mode of installing the rotating shaft in the bearing inner ring, and the bearing is often required to be replaced, so that the production efficiency is low. In addition, in actual production, the rotating shaft needs to move along the axial direction, and the supporting mode of installing the rotating shaft in the bearing inner ring makes the contact surface between the rotating shaft and the bearing inner ring large, so that large friction is generated when the rotating shaft moves, a large amount of heat is generated, and the bearing is often damaged.
Disclosure of Invention
The invention aims to solve the technical problems in the prior art, and provides the bearing supporting device for the high-speed rotating shaft, which adopts a sliding mode of the rotating shaft and a plurality of bearing outer rings to support the rotating shaft, so that the contact area between the bearing and the rotating shaft is reduced, the friction between the bearing and the rotating shaft is reduced, and the service life of the bearing is prolonged.
In order to solve the technical problems, the invention adopts the following technical scheme: a bearing support device for a high-speed rotating shaft, characterized in that: the bearing support assembly comprises a sleeve with a hollow structure and a bushing arranged in the sleeve, wherein a mounting channel for mounting a rotating shaft is formed in the bushing, bearing support assemblies for supporting the rotating shaft are arranged on the bushing and close to two ends of the mounting channel, and each bearing support assembly consists of a plurality of bearing support units uniformly distributed along the circumferential direction of the mounting channel; the bearing support unit comprises a mandrel fixedly mounted on the bushing and a bearing sleeved on the mandrel, wherein the diameter of an inscribed circle among the bearings is smaller than that of a radial circle of the mounting channel.
The bearing support device for a high-speed rotating shaft is characterized in that: a cavity for cooling liquid circulation is arranged between the sleeve and the bushing, and a liquid inlet and a liquid outlet which are communicated with the cavity are formed in the sleeve.
The bearing support device for a high-speed rotating shaft is characterized in that: the two ends of the bushing are respectively provided with a first gland and a second gland for sealing the bushing.
Compared with the prior art, the invention has the following advantages:
1. according to the invention, the rotating shaft is supported by the outer rings of the plurality of bearings by arranging the plurality of bearing supporting units, so that the contact area between the bearings and the rotating shaft is reduced, the friction force between the bearings and the rotating shaft is reduced, the heat generated by friction between the rotating shaft and the bearings is easier to dissipate, and the service life of the bearings is prolonged.
2. According to the invention, the sleeve and the bushing are arranged, so that the bearing support assembly is protected, and the service life of the bearing is prolonged.
3. According to the invention, the plurality of bearing support units are uniformly distributed along the circumferential direction of the mounting channel, so that the stability of the rotating shaft in rotation is improved.
In summary, the invention adopts the sliding mode of the rotating shaft and the plurality of bearing outer rings to support the rotating shaft, reduces the contact area between the bearing and the rotating shaft, reduces the friction force between the bearing and the rotating shaft, and prolongs the service life of the bearing.
The technical scheme of the invention is further described in detail through the drawings and the embodiments.
Drawings
Fig. 1 is a schematic structural view of the present invention.
Fig. 2 is a use state diagram of the present invention.
Fig. 3 is a cross-sectional view A-A of fig. 2.
Reference numerals illustrate:
1-an installation channel; 2-a bushing; 3-a first gland;
4-1-mandrel; 4-2-bearing; 5-a sleeve;
6-a second gland; 7, a liquid inlet; 8, a liquid outlet;
9-a cavity; 10-rotation axis.
Detailed Description
As shown in fig. 1, 2 and 3, the invention comprises a sleeve 5 with a hollow structure and a bushing 2 arranged in the sleeve 5, wherein a mounting channel 1 for mounting a rotating shaft 10 is arranged on the bushing 2, bearing support assemblies for supporting the rotating shaft 10 are arranged on the bushing 2 and near the two ends of the mounting channel 1, and each bearing support assembly consists of a plurality of bearing support units uniformly distributed along the circumferential direction of the mounting channel 1; the bearing support unit includes a spindle 4-1 fixedly mounted on a bush 2 and bearings 4-2 fitted over the spindle 4-1, and the diameter of an inscribed circle between the plurality of bearings 4-2 is smaller than the diameter of a radial circle of the mounting passage 1.
The mounting path of the rotary shaft 10 is defined by opening the mounting passage 1 in the bush 2. The plurality of bearing support units are uniformly distributed along the circumferential direction of the installation channel 1, so that the support of the rotating shaft 10 is realized, the stability of the rotating shaft 10 during rotation is improved, and the rotating shaft 10 can still be matched with other bearing support units for rotation when one bearing support unit in the plurality of bearing support units fails, so that the risk of instantaneous collapse of the rotating action of the rotating shaft 10 during high-speed rotation is avoided. The bearing supporting unit consists of a mandrel 4-1 fixedly arranged on the bushing 2 and a bearing 4-2 sleeved on the mandrel 4-1, so that the rotating shaft 10 is supported by the outer ring of the bearing 4-2, the contact area between the bearing 4-2 and the rotating shaft 10 is reduced, the heat generated by friction between the rotating shaft 10 and the bearing 4-2 during high-speed rotation is reduced, in addition, the friction force generated by the rotating shaft 10 and the bearing 4-2 during the movement along the axis of the rotating shaft 10 is also reduced, and the plurality of bearings 4-2 are uniformly distributed along the circumferential direction of the mounting channel 1, so that the heat generated by friction between the rotating shaft 10 and the bearing 4-2 is easily dissipated, and the service life of the bearing 4-2 is prolonged. By making the diameter of the inscribed circle between the plurality of bearings 4-2 smaller than the diameter of the radial circle of the installation passageway 1, the contact of the rotation shaft 10 with the inner wall of the installation passageway 1 is avoided while the rotation shaft 10 is supported by the bearings 4-2, and friction of the rotation shaft 10 with the inner wall of the installation passageway 1 is prevented. Through setting up sleeve 5 and bush 2, protected the bearing support unit, reduced external influence to bearing 4-2, prolonged the life of bearing 4-2, make the high-speed rotary motion of bearing 4-2 and rotation axis 10 more stable, reduced the noise volume that the bearing 4-2 sent when rotating with rotation axis 10 high-speed, also prevented that the part piece that splashes when the bearing support unit became invalid from jeopardizing staff's personal safety.
As shown in fig. 1, in this embodiment, preferably, a plurality of sealing rings are disposed between the bushing 2 and the sleeve 5, one end of the sleeve 5 is open, and the other end is a bottom plate with a hollow structure. One end of each mandrel 4-1 is fixed on the bushing 2, two bearings 4-2 are sleeved on the mandrel 4-1, and the bearings 4-2 are fixed by locking nuts arranged on the mandrel 4-1 and the shaft shoulders of the mandrel 4-1. After the bearing supporting unit is fixedly installed on the bushing 2, the bushing 2 is plugged into the sleeve 5 from the opening of the sleeve 5, then one end, close to the opening of the sleeve 5, of the bushing 2 is fixedly connected with the opening end of the sleeve 5 through a screw, as shown in fig. 2, one end of the rotating shaft 10 penetrates into the bushing 2 and penetrates out of the bottom plate of the sleeve 5. As shown in fig. 3, the outer ring of the bearing 4-2 abuts against the rotary shaft 10. In this embodiment, there are ten bearing support units in total, and five bearing support units are respectively provided at both ends of the bush 2, and are uniformly distributed along the circumferential direction of the installation channel 1.
In this embodiment, as shown in fig. 1, a cavity 9 for cooling liquid to circulate is provided between the sleeve 5 and the liner 2, and a liquid inlet 7 and a liquid outlet 8 that are communicated with the cavity 9 are provided on the sleeve 5.
It should be noted that, the rotation shaft 10 and the bearing 4-2 perform high-speed rotation, a large amount of heat is generated in the process, and the cooling liquid is discharged from the liquid inlet 7 to the cavity 9, and then the cooling liquid in the cavity 9 is discharged from the liquid outlet 8, so that the cooling liquid takes away the heat generated by the rotation of the rotation shaft 10 and the bearing 4-2 at high speed, and the service life of the bearing support assembly is prolonged.
As shown in fig. 1, in this embodiment, the two ends of the bushing 2 are respectively provided with a first gland 3 and a second gland 6 for sealing the bushing 2.
The first gland 3 is installed on one end of the bushing 2 near the opening of the sleeve 5, the second gland 6 is installed on one end of the bushing 2 near the bottom plate of the sleeve 5, and the first gland 3 and the second gland 6 are both cover plates with hollow structures. By providing the first gland 3 and the second gland 6 to seal the bushing 2, erosion of dust and moisture to the bushing 2 and bearing support assembly is reduced, extending the service life of the bearing 4-2.
When the invention is used, one end of the rotating shaft 10 sequentially passes through the first gland 3, the mounting channel 1 and the second gland 6 and then passes out of the bottom plate of the sleeve 5. The outer circles of the plurality of bearings 4-2 are abutted on the rotating shaft 10, so that the contact area between the bearings 4-2 and the rotating shaft 10 is reduced, and the friction force between the bearings 4-2 and the rotating shaft 10 is reduced. The plurality of bearings 4-2 have gaps between each other, so that heat generated when the bearings 4-2 and the rotating shaft 10 rotate at a high speed can be conveniently dissipated, the diameter of an inscribed circle between the plurality of bearings 4-2 is smaller than that of a radial circle of the mounting channel 1, the rotating shaft 10 is supported by the plurality of bearings 4-2 and has gaps with the inner wall of the mounting channel 1, in addition, gaps exist between the rotating shaft 10 and the first gland 3, the second gland 6 and the sleeve 5, and the first gland 3 and the second gland 6 respectively cover the two ends of the bushing 2 and seal the bearings 4-2 and the mandrel 4-1 in the bushing 2. Cooling liquid is continuously discharged into the cavity 9 from the liquid inlet 7, and when the cooling liquid starts to be discharged from the liquid outlet 8, the cooling liquid circulates in the cavity 9, so that heat emitted into the sleeve 2 by the rotation of the rotating shaft 10 and the bearing 4-2 at a high speed is continuously taken away, and damage and failure caused by overhigh temperature of the bearing 4-2 are avoided.
The foregoing description is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and any simple modification, variation and equivalent structural changes made to the above embodiment according to the technical substance of the present invention still fall within the scope of the technical solution of the present invention.
Claims (2)
1. A bearing support device for a high-speed rotating shaft, characterized in that: the bearing support device comprises a sleeve (5) with a hollow structure and a bushing (2) arranged in the sleeve (5), wherein a mounting channel (1) for mounting a rotating shaft (10) is formed in the bushing (2), bearing support assemblies for supporting the rotating shaft (10) are arranged on the bushing (2) and close to the two ends of the mounting channel (1), and each bearing support assembly consists of a plurality of bearing support units uniformly distributed along the circumferential direction of the mounting channel (1); the bearing support unit comprises a mandrel (4-1) fixedly mounted on the bushing (2) and bearings (4-2) sleeved on the mandrel (4-1), and the diameter of an inscribed circle among the plurality of bearings (4-2) is smaller than that of a radial circle of the mounting channel (1);
one end of each mandrel (4-1) is fixed on the bushing (2), two bearings (4-2) are sleeved on the mandrel (4-1), and the bearings (4-2) are fixed by lock nuts arranged on the mandrels (4-1) and shaft shoulders of the mandrels (4-1);
the two ends of the bushing (2) are respectively provided with a first gland (3) and a second gland (6) for sealing the bushing (2).
2. A bearing support device for a high-speed rotating shaft according to claim 1, characterized in that: a cavity (9) for cooling liquid circulation is arranged between the sleeve (5) and the bushing (2), and a liquid inlet (7) and a liquid outlet (8) which are communicated with the cavity (9) are formed in the sleeve (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710299503.7A CN106907398B (en) | 2017-05-02 | 2017-05-02 | Bearing support device for high-speed rotating shaft |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710299503.7A CN106907398B (en) | 2017-05-02 | 2017-05-02 | Bearing support device for high-speed rotating shaft |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106907398A CN106907398A (en) | 2017-06-30 |
| CN106907398B true CN106907398B (en) | 2023-09-15 |
Family
ID=59210773
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710299503.7A Active CN106907398B (en) | 2017-05-02 | 2017-05-02 | Bearing support device for high-speed rotating shaft |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106907398B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112128252A (en) * | 2020-08-19 | 2020-12-25 | 北京北一机床股份有限公司 | Supporting mechanism and method for large-diameter continuous rotary long shaft |
| CN114665353B (en) * | 2022-05-25 | 2022-08-19 | 西安赛隆金属材料有限责任公司 | Rotating shaft power supply device, power supply method and application |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB973190A (en) * | 1961-08-17 | 1964-10-21 | Robert Gallay | Improvements relating to dental instruments |
| RU1799433C (en) * | 1990-11-15 | 1993-02-28 | М.Е.Изосимов | Two-stage radial bearing |
| US20040200215A1 (en) * | 2001-10-16 | 2004-10-14 | Woollenweber William E. | Bearing system for high-speed rotating machinery |
| CN201198874Y (en) * | 2008-05-26 | 2009-02-25 | 潍坊瑞其能电气有限公司 | Rolling radial support apparatus of transmission shaft |
| JP2009174681A (en) * | 2008-01-28 | 2009-08-06 | Seiko Instruments Inc | Arm support mechanism and information regenerating device |
| CN102522845A (en) * | 2011-12-08 | 2012-06-27 | 西安泰富西玛电机有限公司 | Motor bearing apparatus with sleeve |
| CN103032458A (en) * | 2012-12-28 | 2013-04-10 | 瓦房店轴承集团有限责任公司 | Portable large-tonnage combined-type slewing bearing capable of being demounted and mounted |
| EP2677182A2 (en) * | 2012-06-21 | 2013-12-25 | Liu, Fu-Jian | A mechanism for adjusting the rotation direction and speed of an inner ring and an outer ring of a rotary bearing |
| CN105605108A (en) * | 2014-11-14 | 2016-05-25 | 中国航空工业第六一八研究所 | Double redundancy rotation support structure |
| CN106481659A (en) * | 2015-08-25 | 2017-03-08 | 深圳市沃尔曼精密机械技术有限公司 | Speed reduction bearing and motor |
| CN206738418U (en) * | 2017-05-02 | 2017-12-12 | 西安赛隆金属材料有限责任公司 | A kind of high-speed rotating shaft bearing support assembly |
-
2017
- 2017-05-02 CN CN201710299503.7A patent/CN106907398B/en active Active
Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB973190A (en) * | 1961-08-17 | 1964-10-21 | Robert Gallay | Improvements relating to dental instruments |
| RU1799433C (en) * | 1990-11-15 | 1993-02-28 | М.Е.Изосимов | Two-stage radial bearing |
| US20040200215A1 (en) * | 2001-10-16 | 2004-10-14 | Woollenweber William E. | Bearing system for high-speed rotating machinery |
| JP2009174681A (en) * | 2008-01-28 | 2009-08-06 | Seiko Instruments Inc | Arm support mechanism and information regenerating device |
| CN201198874Y (en) * | 2008-05-26 | 2009-02-25 | 潍坊瑞其能电气有限公司 | Rolling radial support apparatus of transmission shaft |
| CN102522845A (en) * | 2011-12-08 | 2012-06-27 | 西安泰富西玛电机有限公司 | Motor bearing apparatus with sleeve |
| EP2677182A2 (en) * | 2012-06-21 | 2013-12-25 | Liu, Fu-Jian | A mechanism for adjusting the rotation direction and speed of an inner ring and an outer ring of a rotary bearing |
| CN103032458A (en) * | 2012-12-28 | 2013-04-10 | 瓦房店轴承集团有限责任公司 | Portable large-tonnage combined-type slewing bearing capable of being demounted and mounted |
| CN105605108A (en) * | 2014-11-14 | 2016-05-25 | 中国航空工业第六一八研究所 | Double redundancy rotation support structure |
| CN106481659A (en) * | 2015-08-25 | 2017-03-08 | 深圳市沃尔曼精密机械技术有限公司 | Speed reduction bearing and motor |
| CN206738418U (en) * | 2017-05-02 | 2017-12-12 | 西安赛隆金属材料有限责任公司 | A kind of high-speed rotating shaft bearing support assembly |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106907398A (en) | 2017-06-30 |
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Address after: 710018 Room 303-46, Block A, Kairui, Fengcheng 12th Road, Xi'an Economic and Technological Development Zone, Xi'an City, Shaanxi Province Patentee after: Xi'an Sailong Additive Technology Co.,Ltd. Country or region after: China Address before: 710200 middle section of Jinggao West Road, Jingwei new town new material industrial park, Xi'an Economic and Technological Development Zone, Xi'an City, Shaanxi Province Patentee before: XI'AN SAILONG METAL MATERIALS Co.,Ltd. Country or region before: China |