CN101602117A - Duplex-bearing fixed structure of horizontal type numerical control boring-milling machine - Google Patents
Duplex-bearing fixed structure of horizontal type numerical control boring-milling machine Download PDFInfo
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- CN101602117A CN101602117A CNA2009100010604A CN200910001060A CN101602117A CN 101602117 A CN101602117 A CN 101602117A CN A2009100010604 A CNA2009100010604 A CN A2009100010604A CN 200910001060 A CN200910001060 A CN 200910001060A CN 101602117 A CN101602117 A CN 101602117A
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- milling machine
- fixed structure
- boring
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Abstract
The present invention discloses a kind of duplex-bearing fixed structure of horizontal type numerical control boring-milling machine, adds bearing gasket in the middle of duplex bearing, comprises outer ring and inner ring, and the external diameter of outer ring equals the external diameter of bearing, and the internal diameter of inner ring equals the internal diameter of bearing; The width of bearing gasket equal two bearings focal length and.Beneficial effect of the present invention is: after adding bearing gasket, adjust stressed distribution between two bearings by bearing gasket, can make the load-bearing of two bearings more even, reduced the requirement to two bearing accuracies of manufacture, so saved the manufacturing cost of product.
Description
Technical field
The present invention relates to a kind of duplex-bearing fixed structure, specifically a kind of duplex-bearing fixed structure of sleeve of horizontal digital-control boring-milling machine.
Background technology
At present, structure and design that the domestic boring and milling machine equipment of producing is adopted are still introduced from the Soviet Union decades ago.In this field, China does not have autonomous intellectual property fully.As a manufacturing powerhouse, need often to use boring and milling machine in fields such as machining, manufacturings.And the domestic employed high-end boring and milling machine equipment of present China generally all needs from external import.Because we can not produce the boring and milling machine equipment that satisfies domestic production processing needs ourselves, domestic relevant industry development often is limited by external technology like this.Particularly those and the closely bound up field of Defence business need to make high-precision product, have higher requirement for machining equipment.To this, grasp present state-of-the-art in the world technology in the present western developed country hand and having a large amount of intellectual properties, but in order to contain the development of rival and developing country, they are provided with numerous technology barriers for the outlet of these high-end devices.
Reform and open up to the outside world two during the last ten years, China constantly promotes the technical strength of oneself, has all obtained technological break-through and has obtained plentiful and substantial technological achievement in a lot of fields.But for the boring and milling machine apparatus field, by the end of so far, China patent total amount in disclosed this field is no more than 200, wherein at the patent quantity of horizontal boring and milling machine then still less.Simultaneously, we also can find through scrutinizing these disclosed patents, for these patent the insides, more are to carry out local improvement and design at existing boring and milling machine, can't break away from existing technological frame and carry out brand-new design.So up to now, China does not also have particularly horizontal boring and milling machine of boring and milling machine that ability produces complete independent intellectual property right.This is the common problem that the domestic boring and milling machine manufacturing enterprise of China is faced.
In sum, produce a kind of boring and milling machine of complete independent intellectual property right, not only can satisfy domestic production demand, break away from the technology barriers of western countries, also can promote technical research and the innovation of China simultaneously in this field to China.Designing the boring and milling machine of complete independent intellectual property right, is the development strategy needs that are based on whole country, also is the happiness of leaving we descendants for simultaneously.
The present invention is exactly the horizontal digital-control boring-milling machine at complete autonomous Design, the sleeve fixed structure on its top.Generally the fixed form of duplex bearing is that two bearings are installed side by side, and does not stay any slit substantially between two bearings.Such fixed form requires very high to the accuracy of manufacture and the installation accuracy of two bearings.If error is big slightly, will occur a bearing so and drive the problem that another bearing rotates, promptly driven the bearing that rotates and dallied, and the not effect of holding capacity basically of this bearing.At this moment, can cause one of them bearing load-bearing excessive, serious wear, the service life that influence is whole.
Summary of the invention
The purpose of this invention is to provide a kind of main shaft transmission mechanism of horizontal type numerical control boring-milling machine, adopt relative simple mechanism to realize transmission boring bar and sleeve simultaneously.
The objective of the invention is to be achieved through the following technical solutions:
Duplex-bearing fixed structure of horizontal type numerical control boring-milling machine adds bearing gasket in the middle of duplex bearing, comprise outer ring and inner ring, and the external diameter of outer ring equals the external diameter of bearing, and the internal diameter of inner ring equals the internal diameter of bearing; The width of bearing gasket equal two bearings focal length and.
Beneficial effect of the present invention is: after adding bearing gasket, adjust stressed distribution between two bearings by bearing gasket, can make the load-bearing of two bearings more even, reduced the requirement to two bearing accuracies of manufacture, so saved the manufacturing cost of product.
Description of drawings
With embodiment the present invention is described in further detail with reference to the accompanying drawings below.
Fig. 1 is slide block of the present invention, boring bar figure;
Fig. 2 is an A place enlarged drawing among Fig. 1.
Among the figure
1, slide block; 2, boring bar; 3, tail pipe; 4, fixed cover; 5, sleeve; 6, duplex bearing; 7, bearing gasket inner ring; 8, bearing gasket outer ring; 9, gear-box.
The specific embodiment
Horizontal digital-control boring-milling machine of the present invention comprises lathe bed, big column, slide block 1, is installed in fixed cover 4 and gear-box 9 on the slide block 1.
With reference to figure 1, be the slide block 1 of horizontal digital-control boring-milling machine, the structure chart of boring bar 2, gear-box 9 is connected with motor, gear-box 9 is connected with tail pipe 3 simultaneously, the inside of fixed cover 4 is equipped with sleeve 5, inside at sleeve 5 and tail pipe 3 is equipped with boring bar 2, and motor drives boring bar 2 and sleeve 5 runnings simultaneously by the reduction gearing in the driven gear case 9.
With reference to figure 2, duplex-bearing fixed structure of horizontal type numerical control boring-milling machine is installed between the sleeve 5 and fixed cover 4 of horizontal digital-control boring-milling machine, in the middle of duplex bearing 6, add bearing gasket 7,8, comprise outer ring 8 and inner ring 7, the external diameter of outer ring 8 equals the external diameter of bearing, and the internal diameter of inner ring 7 equals the internal diameter of bearing; The width of bearing gasket 7,8 equal two bearings focal length and.
Beneficial effect of the present invention is: after adding bearing gasket, adjust between two bearings by bearing gasket Bearing distribution can make the load-bearing of two bearings more even, has reduced wanting two bearing accuracies of manufacture Ask, so saved the manufacturing cost of product.
For duplex bearing fixed form of the present invention, its application is not limited to horizontal digital-control boring-milling machine equipment, Can solve identical problem for other equipment of using duplex bearing.
Claims (3)
1, duplex-bearing fixed structure of horizontal type numerical control boring-milling machine is characterized in that, adds bearing gasket in the middle of duplex bearing.
2, duplex-bearing fixed structure according to claim 1 is characterized in that, described bearing gasket comprises outer ring and inner ring, and the external diameter of outer ring equals the external diameter of bearing, and the internal diameter of inner ring equals the internal diameter of bearing.
3, duplex-bearing fixed structure according to claim 2 is characterized in that, the width of bearing gasket equal two bearings focal length and.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2009100010604A CN101602117A (en) | 2009-01-21 | 2009-01-21 | Duplex-bearing fixed structure of horizontal type numerical control boring-milling machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2009100010604A CN101602117A (en) | 2009-01-21 | 2009-01-21 | Duplex-bearing fixed structure of horizontal type numerical control boring-milling machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101602117A true CN101602117A (en) | 2009-12-16 |
Family
ID=41468090
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2009100010604A Pending CN101602117A (en) | 2009-01-21 | 2009-01-21 | Duplex-bearing fixed structure of horizontal type numerical control boring-milling machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101602117A (en) |
-
2009
- 2009-01-21 CN CNA2009100010604A patent/CN101602117A/en active Pending
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C12 | Rejection of a patent application after its publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20091216 |