CN103331696A - Electric spindle of grinding railway bearing - Google Patents
Electric spindle of grinding railway bearing Download PDFInfo
- Publication number
- CN103331696A CN103331696A CN2013102059109A CN201310205910A CN103331696A CN 103331696 A CN103331696 A CN 103331696A CN 2013102059109 A CN2013102059109 A CN 2013102059109A CN 201310205910 A CN201310205910 A CN 201310205910A CN 103331696 A CN103331696 A CN 103331696A
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- bearing
- oil circuit
- angular contact
- main shaft
- lining ring
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Abstract
The invention provides an electric spindle of a grinding railway bearing, which allows the grinding railway bearing to be high in rigidity, uniform in internal lubrication, long in service life, and high in rigidity after assembled, guarantees the grinding precision, and further allows a rejection rate to be low. The electric spindle comprises a spindle part, a sleeve and a motor, wherein the spindle part is supported in the sleeve by front bearings and a rear bearing; a motor mounting cavity is arranged at the tail between the spindle part and the sleeve; and the motor is positioned in the motor mounting cavity. The electric spindle is characterized in that the front bearings are particularly uniformly distributed four columns of angular contact ball bearings; each column of angular contact ball bearings is mounted on a ring surface of the outer edge of the spindle part in a sleeving manner; general lubrication oil ways and branch oil ways are arranged in the sleeve; and lining ring structures are arranged between the adjacent angular contact ball bearings.
Description
Technical field
The present invention relates to the technical field of electric main axle structure, be specially a kind of electric main shaft of grinding railway bearing.
Background technology
Existing electric main axle structure for the grinding railway bearing, main shaft passes through fore bearing, rear bearing is supported on the inwall of sleeve, main shaft, be provided with the motor installation cavity in the gap between the sleeve, motor is positioned at the motor installation cavity, existing fore bearing is two row bearings, two row bearing holder (housing, cover)s are loaded on main shaft, the rigidity of its bearing is low, and two row bearings are inner lubricated by a lubricant passage way, and it is lubricated inhomogeneous, causes the life-span of bearing low, in addition, the rigidity of two row bearings combination is low, and it makes low to the grinding accuracy of raceway groove in the outer ring of railway bearing, the percent defective height that causes grinding to produce.
Summary of the invention
At the problems referred to above, the invention provides a kind of electric main shaft of grinding railway bearing, it makes the rigidity height of bearing, and the bearing internal lubrication is even, makes that the life-span of bearing is long, the rigidity height after the bearing combination is guaranteed grinding accuracy, and then is made percent defective low.
A kind of electric main shaft of grinding railway bearing, its technical scheme is such: it comprises main shaft, sleeve, motor, described main shaft passes through fore bearing, rear bearing is supported on described sleeve inner, described main shaft, afterbody between the sleeve is provided with the motor installation cavity, described motor is positioned at described motor installation cavity, it is characterized in that: described fore bearing is specially four uniform row angular contact ball bearings, the described angular contact ball bearing of every row is set in the outer rim anchor ring of described main shaft, described sleeve inner is provided with lubricated total oil circuit, branch's oil circuit, be provided with the lining ring structure between the adjacent described angular contact ball bearing, described lining ring structure comprises interior lining ring, outer lining ring, described liner snare is loaded on the outer rim anchor ring of described main shaft, described outer lining snare is loaded on the outer rim anchor ring of corresponding described interior lining ring, described outer lining ring is provided with the bearing oil circuit, described lubricated total oil circuit is communicated with corresponding bearing oil circuit by branch's oil circuit respectively, and described bearing oil circuit is communicated to corresponding described angular contact ball bearing.
It is further characterized in that: it comprises three lining ring structures altogether, the bearing oil circuit of the described outer lining ring of both sides is the corresponding described angular contact bearing that is communicated with corresponding both sides respectively, the bearing oil circuit of middle described outer lining ring has the both sides branch road, and described both sides branch road is two middle described angular contact ball bearings of corresponding connection respectively.
After adopting structure of the present invention, because fore bearing is specially four uniform row angular contact ball bearings, the angular contact ball bearing of every row is set in the outer rim anchor ring of described main shaft, and it makes the rigidity height of bearing; Lubricated total oil circuit is communicated with corresponding bearing oil circuit by branch's oil circuit respectively, and the bearing oil circuit is communicated to corresponding angular contact ball bearing, and it makes every row angular contact ball bearing that independently lubricating pipe be arranged, and the bearing internal lubrication is even, makes that the life-span of bearing is long; Above both in conjunction with after, the rigidity height after the four row angular contact ball bearings combinations is guaranteed grinding accuracy, and then is made percent defective low.
Description of drawings
Fig. 1 is front view structural representation of the present invention;
Fig. 2 is the local structure for amplifying schematic diagram in A place of Fig. 1.
The specific embodiment
See Fig. 1, Fig. 2, it comprises main shaft 1, sleeve 2, motor 3, main shaft 1 passes through fore bearing, rear bearing 4 is supported on sleeve 2 inside, main shaft 1, afterbody between the sleeve 2 is provided with motor installation cavity 5, motor 3 is positioned at motor installation cavity 5, fore bearing is specially four uniform row angular contact ball bearings 6, the angular contact ball bearing 6 of every row is set in the outer rim anchor ring of main shaft 1, sleeve 2 inside are provided with lubricated total oil circuit 7, branch's oil circuit 8, be provided with the lining ring structure between the adjacent angular contact ball bearing 6, the lining ring structure comprises interior lining ring 9, outer lining ring 10, interior lining ring 9 is set in the outer rim anchor ring of main shaft 1, outer lining ring 10 is set in the outer rim anchor ring of corresponding interior lining ring 9, outer lining ring 10 is provided with bearing oil circuit 11, lubricated total oil circuit 7 is communicated with corresponding bearing oil circuit 11 by branch's oil circuit 8 respectively, and bearing oil circuit 11 is communicated to corresponding angular contact ball bearing 6, and the part that the front portion of main shaft 1 exposes to sleeve 2 is set with grinding wheel structure 13.
It comprises three lining ring structures altogether, the bearing oil circuit 11 of the outer lining ring 10 of both sides is the corresponding angular contact bearing 6 that is communicated with corresponding both sides respectively, the bearing oil circuit 11 of middle outer lining ring 10 has both sides branch road 12, and both sides branch road 12 is two middle angular contact ball bearings 6 of corresponding connection respectively.
Claims (2)
1. the electric main shaft of a grinding railway bearing, it comprises main shaft, sleeve, motor, described main shaft passes through fore bearing, rear bearing is supported on described sleeve inner, described main shaft, afterbody between the sleeve is provided with the motor installation cavity, described motor is positioned at described motor installation cavity, it is characterized in that: described fore bearing is specially four uniform row angular contact ball bearings, the described angular contact ball bearing of every row is set in the outer rim anchor ring of described main shaft, described sleeve inner is provided with lubricated total oil circuit, branch's oil circuit, be provided with the lining ring structure between the adjacent described angular contact ball bearing, described lining ring structure comprises interior lining ring, outer lining ring, described liner snare is loaded on the outer rim anchor ring of described main shaft, described outer lining snare is loaded on the outer rim anchor ring of corresponding described interior lining ring, described outer lining ring is provided with the bearing oil circuit, described lubricated total oil circuit is communicated with corresponding bearing oil circuit by branch's oil circuit respectively, and described bearing oil circuit is communicated to corresponding described angular contact ball bearing.
2. the electric main shaft of a kind of grinding railway bearing according to claim 1, it is characterized in that: it comprises three lining ring structures altogether, the bearing oil circuit of the described outer lining ring of both sides is the corresponding described angular contact bearing that is communicated with corresponding both sides respectively, the bearing oil circuit of middle described outer lining ring has the both sides branch road, and described both sides branch road is two middle described angular contact ball bearings of corresponding connection respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013102059109A CN103331696A (en) | 2013-05-29 | 2013-05-29 | Electric spindle of grinding railway bearing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013102059109A CN103331696A (en) | 2013-05-29 | 2013-05-29 | Electric spindle of grinding railway bearing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103331696A true CN103331696A (en) | 2013-10-02 |
Family
ID=49239937
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013102059109A Pending CN103331696A (en) | 2013-05-29 | 2013-05-29 | Electric spindle of grinding railway bearing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103331696A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105058230A (en) * | 2015-07-24 | 2015-11-18 | 无锡诚石轴承有限公司 | Trimming shaft mechanism of bearing trimming grinder |
| CN112059212A (en) * | 2020-08-06 | 2020-12-11 | 珠海格力电器股份有限公司 | Spindle front end structure and electric spindle |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5969448A (en) * | 1997-07-03 | 1999-10-19 | Data Storage Institute | Electric spindle motor |
| CN202278490U (en) * | 2011-09-16 | 2012-06-20 | 安阳斯普机械有限公司 | Electric main shaft with built-in dynamic balancing system |
| CN202428317U (en) * | 2011-09-16 | 2012-09-12 | 安阳斯普机械有限公司 | High power internal grinding electric spindle |
| CN202910309U (en) * | 2012-10-31 | 2013-05-01 | 普瑞森（安阳）机械有限公司 | Mechanical electric main shaft |
| CN203390721U (en) * | 2013-05-29 | 2014-01-15 | 无锡机床股份有限公司 | Electric spindle for grinding railway bearing |
-
2013
- 2013-05-29 CN CN2013102059109A patent/CN103331696A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5969448A (en) * | 1997-07-03 | 1999-10-19 | Data Storage Institute | Electric spindle motor |
| CN202278490U (en) * | 2011-09-16 | 2012-06-20 | 安阳斯普机械有限公司 | Electric main shaft with built-in dynamic balancing system |
| CN202428317U (en) * | 2011-09-16 | 2012-09-12 | 安阳斯普机械有限公司 | High power internal grinding electric spindle |
| CN202910309U (en) * | 2012-10-31 | 2013-05-01 | 普瑞森（安阳）机械有限公司 | Mechanical electric main shaft |
| CN203390721U (en) * | 2013-05-29 | 2014-01-15 | 无锡机床股份有限公司 | Electric spindle for grinding railway bearing |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105058230A (en) * | 2015-07-24 | 2015-11-18 | 无锡诚石轴承有限公司 | Trimming shaft mechanism of bearing trimming grinder |
| CN112059212A (en) * | 2020-08-06 | 2020-12-11 | 珠海格力电器股份有限公司 | Spindle front end structure and electric spindle |
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| PB01 | Publication | ||
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| C12 | Rejection of a patent application after its publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20131002 |