CN204338888U - The little bracket bearing support structure of a kind of hobbing knife rest - Google Patents
The little bracket bearing support structure of a kind of hobbing knife rest Download PDFInfo
- Publication number
- CN204338888U CN204338888U CN201420831928.XU CN201420831928U CN204338888U CN 204338888 U CN204338888 U CN 204338888U CN 201420831928 U CN201420831928 U CN 201420831928U CN 204338888 U CN204338888 U CN 204338888U
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- Prior art keywords
- bearing
- limit base
- rotating shaft
- flange
- angular contact
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Abstract
The utility model discloses the little bracket bearing support structure of a kind of hobbing knife rest, belong to gear hobbing process technical field, comprise the rotating shaft be connected with power end, described rotating shaft is provided with a flange, also comprise the angular contact bearing multiple arranged side by side be fixedly installed between roller end and flange, be tightly placed in the bearing block of angular contact bearing outer ring, be arranged on the bearing limit base I at bearing block two ends, bearing limit base II, the locking nut of roller end for lock corner contact bearing is set, the other end of described bearing limit base I is provided with bearing cap, end face and the rotating shaft flange end face of the other end of described bearing limit base II are provided with gap.The utility model adopts multiple angular contact main shaft bearing combination in groups to install, eliminate inside and outside spacer structure in original technology, ensure that bearing load assembly precision, and have the sealing means in gap with front end, the problem of handle of a knife locating cone heating when solving main shaft high-speed rotation.
Description
Technical field
The utility model relates to gear hobbing process technical field, particularly the little bracket bearing support structure of a kind of hobbing knife rest.
Background technology
The traditional structure of the little bracket bearing supporting of hobbing knife rest adopts in the middle of three angular contact bearings in groups and adds spacer form, the bearing support structure of composition, and its end face adopts radial oil sealing to seal.There is certain error in this structure spacer amount mill when assembling, assembles out bearing load difference to some extent, if load is slightly large can cause handle of a knife tapering place Relative sliding when knife bar high-speed starting, may cause certain wearing and tearing to knife bar tapering.Radial oil sealing generally will bear certain oil pressure, so can compare tightly with rotating shaft junction, easily generates heat, cause handle of a knife thermal deformation to have certain influence when continuous high speed rotates.
Utility model content
In view of this, the purpose of this utility model is to provide the little bracket bearing support structure of a kind of hobbing knife rest, and to solve in prior art, support arm location is inaccurate and unstable causes the problem that machining gears precision is low.
The little bracket bearing support structure of a kind of hobbing knife rest of the utility model, comprise the rotating shaft be connected with power end, described rotating shaft is provided with a flange, also comprise the angular contact bearing multiple arranged side by side be fixedly installed between roller end and flange, be tightly placed in the bearing block of angular contact bearing outer ring, be arranged on the bearing limit base I at bearing block two ends, bearing limit base II, the locking nut of roller end for lock corner contact bearing is set, the other end of described bearing limit base I is provided with bearing cap, end face and the rotating shaft flange end face of the other end of described bearing limit base II are provided with gap.
Further, the quantity of described angular contact bearing is four.
Further, described gap is 0.03 ~ 0.05mm.
The beneficial effects of the utility model are: a kind of hobbing knife rest of the utility model little bracket bearing support structure adopts multiple angular contact main shaft bearing combination in groups to install, eliminate inside and outside spacer structure in original technology, ensure that bearing load assembly precision, and have the sealing means in gap with front end, the problem of handle of a knife locating cone heating when solving main shaft high-speed rotation.
Other advantages of the present utility model, target and feature will be set forth to a certain extent in the following description, and to a certain extent, based on will be apparent to those skilled in the art to investigating hereafter, or can be instructed from practice of the present utility model.Target of the present utility model and other advantages can be realized by description below and obtain.
Accompanying drawing explanation
Fig. 1 is the support arm open mode structural representation of the little bracket bearing support structure of a kind of hobbing knife rest of the utility model;
Fig. 2 is the support arm closure state structural representation of the little bracket bearing support structure of a kind of hobbing knife rest of the utility model.
Detailed description of the invention
Hereinafter with reference to accompanying drawing, preferred embodiment of the present utility model is described in detail.Should be appreciated that preferred embodiment only in order to the utility model is described, instead of in order to limit protection domain of the present utility model.
As shown in Figures 1 and 2, the little bracket bearing support structure of a kind of hobbing knife rest of the present embodiment, comprise the rotating shaft 1 be connected with power end, described rotating shaft is provided with a flange 2, also comprise the angular contact bearing 3 multiple arranged side by side be fixedly installed between rotating shaft 1 end and flange 2, be tightly placed in the bearing block 4 of angular contact bearing outer ring, be arranged on the bearing limit base I5 at bearing block 4 two ends, bearing limit base II6, the locking nut 7 of rotating shaft 1 end for lock corner contact bearing is set, the other end of described bearing limit base I5 is provided with bearing cap 8, end face and the rotating shaft flange end face of the other end of described bearing limit base II6 are provided with gap 9, in the present embodiment, described gap 9 is 0.03 ~ 0.05mm, avoid rotating shaft when high-speed rotation and produce heat between supporting, cause the problem that handle of a knife locating cone generates heat, the quantity of described angular contact bearing is preferably four, avoid the interior outer separator in original technology, thus ensure better support effects.
The present embodiment adopts four angular contact main shaft bearing combinations in groups to install, eliminate inside and outside spacer structure in original technology, ensure that bearing load assembly precision, and have the sealing means in gap with front end, the problem of handle of a knife locating cone heating when solving main shaft high-speed rotation.
What finally illustrate is, above embodiment is only in order to illustrate the technical solution of the utility model and unrestricted, although be described in detail the utility model with reference to preferred embodiment, those of ordinary skill in the art is to be understood that, can modify to the technical solution of the utility model or equivalent replacement, and not departing from aim and the scope of technical solutions of the utility model, it all should be encompassed in the middle of right of the present utility model.
Claims (3)
1. the little bracket bearing support structure of hobbing knife rest, comprise the rotating shaft be connected with power end, described rotating shaft is provided with a flange, it is characterized in that: also comprise the angular contact bearing multiple arranged side by side be fixedly installed between roller end and flange, be tightly placed in the bearing block of angular contact bearing outer ring, be arranged on the bearing limit base I at bearing block two ends, bearing limit base II, the locking nut of roller end for lock corner contact bearing is set, the other end of described bearing limit base I is provided with bearing cap, end face and the rotating shaft flange end face of the other end of described bearing limit base II are provided with gap.
2. the little bracket bearing support structure of a kind of hobbing knife rest according to claim 1, is characterized in that: the quantity of described angular contact bearing is four.
3. the little bracket bearing support structure of a kind of hobbing knife rest according to claim 1, is characterized in that: described gap is 0.03 ~ 0.05mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420831928.XU CN204338888U (en) | 2014-12-24 | 2014-12-24 | The little bracket bearing support structure of a kind of hobbing knife rest |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420831928.XU CN204338888U (en) | 2014-12-24 | 2014-12-24 | The little bracket bearing support structure of a kind of hobbing knife rest |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204338888U true CN204338888U (en) | 2015-05-20 |
Family
ID=53222190
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420831928.XU Expired - Fee Related CN204338888U (en) | 2014-12-24 | 2014-12-24 | The little bracket bearing support structure of a kind of hobbing knife rest |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204338888U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112714833A (en) * | 2018-09-13 | 2021-04-27 | 日本精工株式会社 | Spindle device |
-
2014
- 2014-12-24 CN CN201420831928.XU patent/CN204338888U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112714833A (en) * | 2018-09-13 | 2021-04-27 | 日本精工株式会社 | Spindle device |
| CN112714833B (en) * | 2018-09-13 | 2022-08-26 | 日本精工株式会社 | Spindle device |
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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: 20150520 Termination date: 20171224 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |