CN203890661U - Integrated rolling bearing component for sewing machine - Google Patents
Integrated rolling bearing component for sewing machine Download PDFInfo
- Publication number
- CN203890661U CN203890661U CN201420264464.9U CN201420264464U CN203890661U CN 203890661 U CN203890661 U CN 203890661U CN 201420264464 U CN201420264464 U CN 201420264464U CN 203890661 U CN203890661 U CN 203890661U
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- CN
- China
- Prior art keywords
- inner ring
- sleeve inner
- axle sleeve
- steel ball
- rolling bearing
- 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.)
- Expired - Fee Related
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Abstract
The utility model relates to the field of mechanical components, in particular to an integrated rolling bearing component for a sewing machine. The integrated rolling bearing component comprises a bearing outer ring, a shaft sleeve inner ring, a steel ball, a retainer, a seal cover and an oil seal. A steel ball inner guide rail is disposed on the shaft sleeve inner ring. A steel ball outer guide rail is disposed on the bearing outer ring. The steel ball is located between the steel ball inner guide rail and the steel ball outer guide rail. The steel ball is located in the retainer. One side of the shaft sleeve inner ring is provided with a spindle mounting hole. The oil seal is mounted on one side, close to the spindle mounting hole, of the shaft sleeve inner ring and seals the gap between the bearing outer ring and the shaft sleeve inner ring. The other side of the shaft sleeve inner ring is provided with a coupler groove. The seal cover is mounted on one side, close the coupler groove, of the shaft sleeve inner ring and seals another gap between the bearing outer ring and the shaft sleeve inner ring. Compared with the prior art, the integrated rolling bearing component is long in service life, high in precision, simple to mount and lightweight.
Description
Technical field
The utility model relates to mechanical component field, particularly the integrated rolling bearing assembly of a kind of use in sewing machine.
Background technology
The existing bearing assembly that is applied to computer controlled sewing machine comprises the oil sealing of bearing and axle sleeve and axle sleeve front end, between bearing and axle sleeve, adopting interference fit assembling to coordinate is integrated, axle sleeve and oil sealing are together assembled on main shaft, and oil sealing is positioned at axle sleeve front end, play grease proofing effect.
Bearing and axle sleeve, oil sealing installation site and structure are set to:
This bearing assembly mainly by: bearing, axle sleeve, oil sealing three parts form.
Wherein:
The effect of bearing is: supports main shaft, and turning effort, quantity is 1;
Axle sleeve effect is: axle sleeve is with shaft coupling groove, and sleeve diameter is connected with axle and screw lock, and axle sleeve external diameter and bearing bore diameter interference fit, play transmitting torque, 1 of quantity;
Oil sealing effect is: for preventing that the inner greasy dirt of casing from spraying into bearing inside, seals, and 1 of quantity;
In addition, main shaft is machine spindle; Casing is sewing machine case, plays rigid bearing outer ring.
The shortcoming of this bearing assembly is as follows:
A, bearing and axle sleeve interference fit, due to the impact that axle sleeve mating surface tolerance distributes and circularity is large and brearing bore tolerance distributes, after installation, will produce the contraction of internal diameter and raceway groove roundness deformation and play, the circular runout that has simultaneously strengthened bearing, affects running accuracy and the complete machine precision of main shaft.This bearing initial failure of the heating under running up, wearing and tearing for a long time will be caused simultaneously;
B, axle sleeve outside dimension are because Design Orientation bearing needs, and size need be greater than bearing bore diameter, and weight is larger, and the screw hole of spending with two intervals 90, when screw lock, screw is not filled, self exists compared with large unbalance, and the lower imbalance that runs up is larger, is badly in need of optimizing;
C, axle sleeve front end are equipped with oil sealing, and the whole axial dimension of bearing assembly is larger, need to extend enclosure space, increase cost.Meanwhile, oil sealing, because needs are installed to casing inside, is installed not in place or installation accuracy forfeiture, will cause oil sealing to lose efficacy in advance, causes bearing oil-feed, and grease wrecks, bearing leakage of oil, abnormal sound;
The interference of d, oil sealing installation, bearing and axle sleeve press-fits, and the installation of bearing assembly, and installation procedure is more, and installation cost is higher.
How reducing rotary part weight, is the first problem that technical staff will solve to improve bearing assembly precision and life-span; The installation procedure that how to reduce bearing assembly is the Second Problem facing; How improving bearing assembly sealing property is the 3rd problem facing.
Utility model content
In order to solve the problems of the technologies described above, the utility model provide long precision of a kind of life-span high, simple installation, the integrated rolling bearing assembly of light-weighted use in sewing machine.
In order to achieve the above object, the technical solution adopted in the utility model is: the integrated rolling bearing assembly of use in sewing machine, it is characterized in that, comprise bearing outer ring, axle sleeve inner ring, steel ball, retainer, seal cover, oil sealing, described axle sleeve inner ring is provided with guide rail in steel ball, described bearing outer ring is provided with steel ball outer guide, and described steel ball is in described steel ball between guide rail and steel ball outer guide, and described steel ball is positioned at described retainer; One side of described axle sleeve inner ring is provided with spindle mounting hole, described oil sealing is arranged on the side by spindle mounting hole of axle sleeve inner ring, seal up the space between bearing outer ring and axle sleeve inner ring, the opposite side of described axle sleeve inner ring is provided with shaft coupling groove, described seal cover is arranged on the side by shaft coupling groove of axle sleeve inner ring, seals up another space between bearing outer ring and axle sleeve inner ring.
Described axle sleeve inner ring is two-layer configuration, and the first order is positioned at one end of shaft coupling groove, and the second level is positioned at one end of spindle mounting hole, and the first order and the second level are coaxial, and the diameter of the second level is less than the first order.Melancholy does not need as conventional art, to lean on outstanding location, second level traditional bearing, thereby adds the weight that has reduced equipment, makes light-weighted effect more obvious.
The spindle mounting hole of described axle sleeve inner ring is provided with locking screw holes.Can main shaft be fixed in the spindle mounting hole of axle sleeve inner ring securely.
Described shaft coupling groove is equally distributed three-jaw groove.Shaft coupling, by the power access three-jaw groove of power set output, drives axle sleeve inner ring to rotate, and the main shaft that is fixed on axle sleeve inner ring arrives device interior by transmission of power.
Described oil sealing is FB oil sealing.Be the completely coated two-lip seal with self-tightening spring of a kind of rubber, band dust excluder lips can be prevented dust, and self-tightening spring can closely be fitted in the tangent plane of repairing of FB oil sealing on axle sleeve inner ring, plays good sealing function.
Described locking screw holes is two and mutually vertical.Screw in two screws to the main shaft in the spindle mounting hole of axle sleeve inner ring apply orthogonal in, more firmly main shaft is fixed in the spindle mounting hole of axle sleeve inner ring.
Compared with prior art, the invention has the beneficial effects as follows:
After A, integrated rolling bearing assembly rotary part axle sleeve inner ring are integrated, can reduce outside dimension, weight reduction 30%, has improved spin balancing.Avoid installing the destruction to bearing accuracy simultaneously, improved main frame running accuracy;
B, integrated rolling bearing assembly structure are removed single-groove grooved ball bearing installation process in the past, environmental pollution and the damage of debugging and having stopped installation process from.
C, integrated rolling bearing assembly, near there being oil pollution end to adopt oil sealing sealing, have saved the space of the installation of oil sealing, have reduced mechanical dimensions space.Integrated oil enveloping structure simultaneously, has improved the installation and operation precision of oil sealing, has extended the oil sealing life-span.
Accompanying drawing explanation
Fig. 1 is the structural representation of the integrated rolling bearing assembly of the utility model use in sewing machine.
The specific embodiment
Below in conjunction with Figure of description, the utility model is made to concrete elaboration:
As shown in Figure 1:
The integrated rolling bearing assembly of use in sewing machine comprises bearing outer ring 1, axle sleeve inner ring 2, steel ball 3, retainer 4, seal cover 5, oil sealing 6, described axle sleeve inner ring 2 is provided with guide rail 2-0 in steel ball, described bearing outer ring 1 is provided with steel ball outer guide 1-0, described steel ball 3 is in described steel ball between guide rail 2-0 and steel ball outer guide 1-0, and described steel ball 3 is positioned at described retainer 4; One side of described axle sleeve inner ring 2 is provided with spindle mounting hole 2-1, described oil sealing 6 is arranged on the side by spindle mounting hole 2-1 of axle sleeve inner ring 2, seal up the space between bearing outer ring 1 and axle sleeve inner ring 2, the opposite side of described axle sleeve inner ring 2 is provided with shaft coupling groove 2-3, described seal cover 5 is arranged on the side by shaft coupling groove 2-3 of axle sleeve inner ring 2, seals up another space between bearing outer ring 1 and axle sleeve inner ring 2.
Described axle sleeve inner ring 2 is two-layer configuration, and the first order is positioned at one end of shaft coupling groove 2-3, and the second level is positioned at one end of spindle mounting hole 2-1, and the first order and the second level are coaxial, and the diameter of the second level is less than the first order.Melancholy does not need as conventional art, to lean on outstanding location, second level traditional bearing, thereby adds the weight that has reduced equipment, makes light-weighted effect more obvious.
The spindle mounting hole 2-1 of described axle sleeve inner ring 2 is provided with locking screw holes 2-2.Can securely main shaft be fixed on to 2-1 in the spindle mounting hole of axle sleeve inner ring 2.
Described shaft coupling groove 2-3 is equally distributed three-jaw groove.Shaft coupling, by the power access three-jaw groove of power set output, drives axle sleeve inner ring 2 to rotate, and the main shaft that is fixed on axle sleeve inner ring 2 arrives device interior by transmission of power.
Described oil sealing 6 is FB oil sealing.Be the completely coated two-lip seal with self-tightening spring of a kind of rubber, band dust excluder lips can be prevented dust, and self-tightening spring can closely be fitted in the tangent plane of repairing of FB oil sealing on axle sleeve inner ring 2, plays good sealing function.
Described locking screw holes 2-2 is two and mutually vertical.In two locking screw holes the screw of 2-2 to the main shaft of 2-1 in the spindle mounting hole of axle sleeve inner ring 2 apply orthogonal in, more firmly main shaft is fixed on to 2-1 in the spindle mounting hole of axle sleeve inner ring 2.
Claims (6)
1. the integrated rolling bearing assembly of use in sewing machine, it is characterized in that, comprise bearing outer ring, axle sleeve inner ring, steel ball, retainer, seal cover, oil sealing, described axle sleeve inner ring is provided with guide rail in steel ball, described bearing outer ring is provided with steel ball outer guide, described steel ball is in described steel ball between guide rail and steel ball outer guide, and described steel ball is positioned at described retainer; One side of described axle sleeve inner ring is provided with spindle mounting hole, described oil sealing is arranged on the side by spindle mounting hole of axle sleeve inner ring, seal up the space between bearing outer ring and axle sleeve inner ring, the opposite side of described axle sleeve inner ring is provided with shaft coupling groove, described seal cover is arranged on the side by shaft coupling groove of axle sleeve inner ring, seals up another space between bearing outer ring and axle sleeve inner ring.
2. the integrated rolling bearing assembly of use in sewing machine as claimed in claim 1, it is characterized in that, described axle sleeve inner ring is two-layer configuration, the first order is positioned at one end of shaft coupling groove, the second level is positioned at one end of spindle mounting hole, the first order and the second level are coaxial, and the diameter of the second level is less than the first order.
3. the integrated rolling bearing assembly of use in sewing machine as claimed in claim 1, is characterized in that, the spindle mounting hole of described axle sleeve inner ring is provided with locking screw holes.
4. the integrated rolling bearing assembly of use in sewing machine as claimed in claim 1, is characterized in that, described shaft coupling groove is equally distributed three-jaw groove.
5. the integrated rolling bearing assembly of use in sewing machine as claimed in claim 1, is characterized in that, described oil sealing is FB oil sealing.
6. the integrated rolling bearing assembly of use in sewing machine as claimed in claim 3, is characterized in that, described locking screw holes is two and mutually vertical.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420264464.9U CN203890661U (en) | 2014-05-22 | 2014-05-22 | Integrated rolling bearing component for sewing machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420264464.9U CN203890661U (en) | 2014-05-22 | 2014-05-22 | Integrated rolling bearing component for sewing machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203890661U true CN203890661U (en) | 2014-10-22 |
Family
ID=51717085
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420264464.9U Expired - Fee Related CN203890661U (en) | 2014-05-22 | 2014-05-22 | Integrated rolling bearing component for sewing machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203890661U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105443583A (en) * | 2015-12-31 | 2016-03-30 | 哈尔滨轴承集团公司 | Roller bearing special for bottle blowing machine |
| CN106321644A (en) * | 2015-11-03 | 2017-01-11 | 无锡市三立轴承有限公司 | Integrated bearing inner ring structure |
-
2014
- 2014-05-22 CN CN201420264464.9U patent/CN203890661U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106321644A (en) * | 2015-11-03 | 2017-01-11 | 无锡市三立轴承有限公司 | Integrated bearing inner ring structure |
| CN105443583A (en) * | 2015-12-31 | 2016-03-30 | 哈尔滨轴承集团公司 | Roller bearing special for bottle blowing machine |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20141022 Termination date: 20210522 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |