CN202023852U - Bearing support and rolling bearing thereof - Google Patents
Bearing support and rolling bearing thereof Download PDFInfo
- Publication number
- CN202023852U CN202023852U CN2011200974655U CN201120097465U CN202023852U CN 202023852 U CN202023852 U CN 202023852U CN 2011200974655 U CN2011200974655 U CN 2011200974655U CN 201120097465 U CN201120097465 U CN 201120097465U CN 202023852 U CN202023852 U CN 202023852U
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- China
- Prior art keywords
- bearing
- outer ring
- retainer
- ring
- rolling bearing
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Abstract
The utility model discloses a bearing support and a rolling bearing thereof. The bearing support comprises a bearing bush, end covers and the rolling bearing, wherein the bearing bush is of a cylinder shape; the middle inside the cylindrical bearing bush is provided with a step; the end covers are combined to both ends of the bearing bush; the rolling bearing comprises an outer ring, two check rings, a plurality of rollers and a retainer; the outer ring is arranged between the two check rings; the retainer is arranged in the outer ring; and a plurality of rollers are arranged in the retainer.
Description
Technical field
The utility model relates to a kind of bearing support and bearing thereof, more particularly, the rolling bearing that relates to a kind of bearing support and can move vertically.
Background technique
In mechanical manufacturing field, boring machine is a kind of lathe commonly used, and boring machine refers to mainly process on workpiece with boring cutter the lathe of existing pre-manufactured hole.Usually, boring cutter rotates to be main movement, and boring cutter or workpiece movement are feed movement.It is mainly used in the machining high-precision hole or one-time positioning is finished the fine finishing in a plurality of holes, can be engaged in the processing of other working surfaces relevant with hole fine finishing in addition.Boring machine is divided into according to structure and processed object: horizontal boring machine, and axial feed is arranged and done to the boring axle horizontal, and headstock is along front column guide rail vertical movement, and worktable is done vertical or horizontal moving, and carries out boring processing; Coordinate boring machine has the boring machine of precision coordinate positioning device, and it is mainly used in boring size, the higher hole system of shape, particularly position accuracy demand, also can be used for work such as precision coordinate measurement, model line, scale; Fine boring machine with cutters such as diamond or cemented carbide, carries out the boring machine of fine boring; Deep hole boring machine is used for the boring machine of boring deep hole; Floor type boring machine, workpiece are placed on the floor type table, and column moves along lathe bed is vertical or horizontal.Be used for the machining large workpiece.
At present machine-building processing enterprise is employed horizontal or floor type borer is most of all is furnished with the tailstock that is used to support and locate boring bar, so that use during the boring slotted hole.And the bearing of support and location boring bar axle journal adopts sliding bearing mostly.This class bearing in use owing to be subjected to the sliding friction of radial and axial both direction, is easy to generate wearing and tearing, causes the preceding high back of boring bar low, thereby influences the bore hole quality; In addition, if lubricated bad, the bearing shell locking takes place easily and vexed car.
Therefore, need develop a kind of bearing and bearing support to address the above problem.
The model utility content
One of the purpose of this utility model is to provide a kind of bearing support of the rolling bearing that can move vertically.
Another purpose of the present utility model is to provide a kind of and can be used in boring machine and can keep the bearing and the bearing support of the exact position of boring bar for a long time.
According to one side of the present utility model, a kind of bearing support is provided, this bearing support comprises: bearing housing, cylindrical, the centre in the cylindrical shape is provided with step; End cap is attached to the two ends of bearing housing; Rolling bearing comprises outer ring, two back-up rings, a plurality of roller and retainers,, the outer ring is arranged between two back-up rings, and retainer is arranged in the outer ring, and described a plurality of rollers are arranged in the retainer.
Can in rolling bearing pedestal, be arranged side by side two identical described rolling bearings.
The axially locating of described rolling bearing can be realized by bearing housing and end cap.
The material of outer ring, back-up ring and roller can be high-carbon-chromium bearing steel GCr15, and hardness is HRC60 °.
Can be provided with seal groove in the described end cap, be provided with oiling agent in the seal groove.
Inner ring is not set in the described rolling bearing.
Described a plurality of roller can be crisscross arranged in rolling bearing.
Can be parallel to each other between described a plurality of roller.
The width of retainer can be identical with the width of outer ring.
Roller can be evenly distributed on the internal surface of outer ring, is undertaken radially with the circumferencial direction supporting spacingly by retainer, carries out axial limiting by back-up ring.
According on the other hand of the present utility model, a kind of rolling bearing is provided, this rolling bearing comprises outer ring, two back-up rings, a plurality of roller and retainers, the outer ring is arranged between two back-up rings, and retainer is arranged in the outer ring, and described a plurality of rollers are arranged in the retainer.
The material of outer ring, back-up ring and roller can be high-carbon-chromium bearing steel GCr15, and hardness is HRC60 °.
Inner ring is not set in the described rolling bearing.
Described a plurality of roller can be crisscross arranged in rolling bearing.
Can be parallel to each other between described a plurality of roller.
The width of retainer can be identical with the width of outer ring.
Roller can be evenly distributed on the internal surface of outer ring, is undertaken radially with the circumferencial direction supporting spacingly by retainer, carries out axial limiting by back-up ring.
Adopt the bearing support of this design principle and structure, on the basis that does not change original boring machine tail spindle bearing project organization, can effectively improve the support Location accuracy of boring bar, prolong the working life of bearing, can keep long Location accuracy according to bearing of the present utility model, guarantee quality of product.
Description of drawings
By the description of embodiment being carried out below in conjunction with accompanying drawing, these of the utility model general plotting and/or others and effectiveness will become clear and easy to understand more, wherein:
Fig. 1 is the sectional view according to embodiment's of the present utility model rolling bearing pedestal.
Embodiment
Now, will describe in detail according to embodiment of the present utility model, its example is illustrated in the accompanying drawings.Below, embodiment is described with reference to the accompanying drawings, to explain general plotting of the present utility model.
Bearing according to the embodiment of model utility can be used for any bar member, but in following embodiment, is that example is described with the boring bar.
Bearing in the bearing support of the present utility model can be used for the location and the support of boring machine tailstock boring bar, and this bearing is a rolling bearing, and the boring bar axle journal is done rotation and axial motion relatively, and its use principle is identical with the sliding bearing that generally adopts now with function.
With reference to Fig. 1, comprise according to embodiment's of the present utility model bearing support: bearing housing 1, outer ring 2, back-up ring 3, cylindrical rollers 4, retainer 5 and end cap 6.Wherein, the outward appearance of this bearing support is cylindrical body, and bearing housing 1 and end cap 6 constitute the outward appearance of bearing support.Bearing housing 1 integral body roughly becomes cylindrical body, and the thickness of the intermediate portion vertically of cylindrical body that is to say greater than the thickness at two ends, is formed with step inwardly highlightedly at the intermediate portion of bearing housing 1, so that the location of each assembly and installation in the bearing support.Have two end caps in this bearing support, end cap 6 is assembled to the two ends of bearing housing 1 respectively, and the inside of end cap 6 is provided with seal groove, is used for packing lubrication oil.Utilize fastening piece for example bolt 7 end cap 6 is fastened on the bearing housing 1.
Inside at this embodiment's bearing support is provided with two bearings, and two bearings are assemblied in respectively in the endoporus of bearing housing 1, but in other embodiments, can be provided with a bearing, and the bearing more than three perhaps is set.In this embodiment, each bearing comprises an outer ring 2, two back-up rings 3, plurality of rollers 4 and retainers 5, and inner ring is not set in the rolling bearing in the present embodiment.Wherein, the material of outer ring 2, back-up ring 3 and roller 4 is high-carbon-chromium bearing steel GCr15, adopts all behind the forged steel again that the machining manufacturing obtains, and hardness is HRC60 °.Back-up ring 3 is circular, has certain width, the location that is used for each parts in the bearing, back-up ring 3 is arranged on the both sides that are formed on the step in the bearing housing 1 and the inboard of end cap 6 respectively vertically, that is, be divided into inner shield ring and outer back-up ring according to the position of back-up ring setting, inner shield ring is arranged on the step sidepiece of bearing housing 1, outer back-up ring is arranged on the inside portion of end cap 6, so that outer ring 2 is positioned.Outer ring 2 is the cylindrical shape with certain width, is arranged on the bearing housing 1, and an end of outer ring 2 contacts with back-up ring 3, and the other end of outer ring contacts with another back-up ring 3, that is, outer ring 2 is arranged between inner shield ring and the outer back-up ring, is positioned on the bearing housing 1.The width of retainer 5 equates with the width of outer ring 2, also be arranged between outer back-up ring and the inner shield ring, also by outer back-up ring and inner shield ring location, the shape of retainer 5 is cylindrical generally, along it irregular convex-concave is arranged radially, be used for roller 4 is positioned, can be identical with the shape of the retainer that is used for positioning roller of the prior art, perhaps can be the Any shape that realizes roller 4 location.A plurality of rollers 4 of two rows of mutually staggered can be set in each retainer 5,, for being arranged in parallel, not have differential seat angle between a plurality of rollers in order to realize rolling bearing motion vertically.Roller 4 be shaped as cylindrical body, its quantity is determined as required.Wherein, roller 4 is evenly distributed on the internal surface of outer ring 2, is undertaken radially with the circumferencial direction supporting spacingly by retainer 5, carries out axial limiting by back-up ring 3.The axially locating of the rolling bearing that is made of outer ring 2, back-up ring 3, roller 4 and retainer 5 is to be realized by the end cap 6 of bearing housing 1 and band seal groove.
Compare with rolling bearing of the prior art, have only outer ring and roller according to the rolling bearing in the bearing support of the present utility model, and do not have inner ring, and the orientation type of roller is also different, therefore can realize motion vertically.
Below, with the assembly process of describing according to embodiment's of the present utility model bearing support.
At first prepare bearing housing 1, then, inner shield ring 3 is set on bearing housing 1, inner shield ring 3 is separately positioned on the step sidepiece of bearing housing 1, assemble outer ring 2 then, outer ring 2 is placed on the bearing housing 1, an end of outer ring 2 is contacted, next with inner shield ring 3, assembling roller 4 and retainer 5, a plurality of rollers 4 are assembled to respectively on the retainer 5, and radially spacing with the circumferencial direction supporting by 5 pairs of rollers of retainer, 4 works, the retainer 5 that will be equipped with roller 4 then is assembled in the bearing housing 1, promptly, retainer 5 is assembled in the outer ring 2, makes roller 4 carry out axial limiting by back-up ring 3, and then the outer back-up ring 3 of assembling, at last, assembling end cap 6 utilizes fastening piece that end cap 6 is fastened on the bearing housing 1, thereby finishes the assembly technology of bearing support.In assembly process, design and select for use the relative dimensions and the tolerance fit of each part in the diagram according to self boring machine tailstock brearing bore and length dimension, boring bar axle journal diameter.
In use, earlier with this bearing support encapsulation on the back axle journal of boring bar, then, the front end and the boring axle of boring bar joined, pack in the lump in company with this bearing support in the tail spindle bearing in the rear end.In the boring bar working procedure, boring bar axle journal outer surface contacts with roller 4, along the circumferential direction does to roll relatively, in axial direction makes linear slide, and the inner outer back-up ring of the axial rub displacement of roller 43 is spacing.
Because the equal hardness of the axial rub face that radially reaches of bearing is higher, so working life is very long, still, the back axle journal surface hardness slide relative bearing of boring bar is higher.
Adopt the bearing and the bearing support of this design principle and structure, on the basis that does not change original boring machine tail spindle bearing project organization, can effectively improve the support Location accuracy of boring bar, prolong the working life of bearing.
In the course of working of reality, use length to be 5000mm, weight reaches 1.4 tons boring bar processed product, and adopting material is the sliding bearing support of tin bronze, only uses 1 month, and the circle wear extent reaches 0.4mm in the copper sheathing; And after using rolling bearing of the present utility model instead, used also no replacing of time more than a year, and precision still keeps better.
In sum, just can realize under the situation that does not change former boring machine tail spindle bearing and boring bar project organization according to bearing of the present utility model; In addition, be similar to needle bearing in the rolling bearing type according to its working principle of bearing of the present utility model, more durable in use than sliding bearing; Moreover, can keep long Location accuracy according to bearing of the present utility model, guarantee quality of product.
Though reference certain preferred embodiment of the present utility model shows the utility model and illustrates, but it should be appreciated by those skilled in the art, under the situation that does not break away from the spirit and scope of the present utility model that are defined by the claims, can carry out modification on various forms and the details to it.
Claims (15)
1. a bearing support is characterized in that, comprising:
Bearing housing, cylindrical, the centre in the cylindrical shape is provided with step;
End cap is attached to the two ends of bearing housing;
Rolling bearing comprises outer ring, two back-up rings, a plurality of roller and retainers, and the outer ring is arranged between two back-up rings, and retainer is arranged in the outer ring, and described a plurality of rollers are arranged in the retainer.
2. bearing support as claimed in claim 1, its spy just is, is arranged side by side two identical described rolling bearings in rolling bearing pedestal.
3. bearing support as claimed in claim 1, its spy just is that the axially locating of described rolling bearing is realized by bearing housing and end cap.
4. bearing support as claimed in claim 1, its spy just is that the material of outer ring, back-up ring and roller is a high-carbon-chromium bearing steel, hardness is HRC60 °.
5. bearing support as claimed in claim 1, its spy just is, is provided with seal groove in the described end cap, is provided with oiling agent in the seal groove.
6. bearing support as claimed in claim 1 is characterized in that, described a plurality of rollers are crisscross arranged in rolling bearing.
7. bearing support as claimed in claim 1 is characterized in that, is parallel to each other between described a plurality of rollers.
8. bearing support as claimed in claim 1 is characterized in that, the width of retainer is identical with the width of outer ring.
9. bearing support as claimed in claim 1 is characterized in that, roller is evenly distributed on the internal surface of outer ring, is undertaken radially with the circumferencial direction supporting spacingly by retainer, carries out axial limiting by back-up ring.
10. a rolling bearing is characterized in that comprising outer ring, two back-up rings, a plurality of roller and retainers, and the outer ring is arranged between two back-up rings, and retainer is arranged in the outer ring, and described a plurality of rollers are arranged in the retainer.
11. rolling bearing as claimed in claim 10, its spy just is that the material of outer ring, back-up ring and roller is a high-carbon-chromium bearing steel, and hardness is HRC60 °.
12. rolling bearing as claimed in claim 10 is characterized in that, described a plurality of rollers are crisscross arranged in rolling bearing.
13. rolling bearing as claimed in claim 10 is characterized in that, is parallel to each other between described a plurality of rollers.
14. rolling bearing as claimed in claim 10 is characterized in that, the width of retainer is identical with the width of outer ring.
15. rolling bearing as claimed in claim 10 is characterized in that, roller is evenly distributed on the internal surface of outer ring, is undertaken radially with the circumferencial direction supporting spacingly by retainer, carries out axial limiting by back-up ring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200974655U CN202023852U (en) | 2011-04-06 | 2011-04-06 | Bearing support and rolling bearing thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200974655U CN202023852U (en) | 2011-04-06 | 2011-04-06 | Bearing support and rolling bearing thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202023852U true CN202023852U (en) | 2011-11-02 |
Family
ID=44848802
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011200974655U Expired - Fee Related CN202023852U (en) | 2011-04-06 | 2011-04-06 | Bearing support and rolling bearing thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202023852U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103527638A (en) * | 2013-10-11 | 2014-01-22 | 平湖市山特螺纹工具有限公司 | Bearing cover of main shaft of screw tap relief-grinding machine |
| CN104747606A (en) * | 2015-02-27 | 2015-07-01 | 成都聚智工业设计有限公司 | Shaft fixing mechanism of boring lathe |
| CN106438721A (en) * | 2016-11-18 | 2017-02-22 | 广西大学 | Bearing seat with interference magnitude being adjustable |
| CN107559319A (en) * | 2017-09-26 | 2018-01-09 | 肇庆宏旺金属实业有限公司 | A kind of transparent cover and its bearing block |
-
2011
- 2011-04-06 CN CN2011200974655U patent/CN202023852U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103527638A (en) * | 2013-10-11 | 2014-01-22 | 平湖市山特螺纹工具有限公司 | Bearing cover of main shaft of screw tap relief-grinding machine |
| CN104747606A (en) * | 2015-02-27 | 2015-07-01 | 成都聚智工业设计有限公司 | Shaft fixing mechanism of boring lathe |
| CN106438721A (en) * | 2016-11-18 | 2017-02-22 | 广西大学 | Bearing seat with interference magnitude being adjustable |
| CN106438721B (en) * | 2016-11-18 | 2018-04-24 | 广西大学 | A kind of bearing block of adjustable interference volume |
| CN107559319A (en) * | 2017-09-26 | 2018-01-09 | 肇庆宏旺金属实业有限公司 | A kind of transparent cover and its bearing block |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20111102 Termination date: 20120406 |