CN101530977A - Power high efficiency grinding head - Google Patents
Power high efficiency grinding head Download PDFInfo
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- CN101530977A CN101530977A CN200910102508A CN200910102508A CN101530977A CN 101530977 A CN101530977 A CN 101530977A CN 200910102508 A CN200910102508 A CN 200910102508A CN 200910102508 A CN200910102508 A CN 200910102508A CN 101530977 A CN101530977 A CN 101530977A
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- static pressure
- dynamic
- bearing
- main shaft
- grinding
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Abstract
A power high efficiency grinding head belongs to an excircle grinding head. A main shaft (3) is mounted in an eccentric sleeve (4); a dynamic and static pressure front bearing (1) is mounted at the front end between the eccentric sleeve and the main shaft; the rear end is equipped with a dynamic and static pressure rear bearing (6) and a roll push bearing (7). All the components are mounted in a grinding rack housing (5). The front end of the eccentric sleeve (4) is equipped with a taper sleeve. The rear end of the main shaft (3) is equipped with a belt wheel (8). The structure format of the dynamic and static pressure beating oil chamber is that an upper chamber (9) is the static pressure, a lower chamber (11) is the static pressure, a front chamber (10) is the static pressure and a rear chamber (12) is the dynamic pressure. This invention improving the own rigid and the interference rejection of the grinding head is suitable for the power grinding so as to improve the grinding efficiency of the roller and the surface macroscopic quality of the roller, and to realize the grinding effect of machining-less of the middle and high rollers with the surface roughness concentration of Ra 0.03, and it is suitable for the excircle surface of the grinding roller.
Description
Technical field:
The present invention relates to the cylindrical bistrique, particularly a kind of power high efficiency grinding head.
Background technology:
Static pressure eccentric bushing main shaft bearing oil pocket version is three chamber static pressure, a chamber dynamic pressure in the prior art, and the generation of dynamic pressure effect mainly realizes by spindle eccentricity.Because reference axis is that size, pressure and other parameters specification are less, its vulnerability to jamming is relatively poor, and under certain main shaft bearing gap situation, the big more main shaft bearing rigidity of cutting force is good more.Corresponding the weakening of the more little then main shaft of cutting force rigidity because of the easy drift of spindle axis, makes that the grinding skin macroscopic quality is poor.Main shaft bearing gap, bearing draw ratio, main shaft thrust bearing are the surperficial macroscopic quality that factors such as rolling bearing also influence roll dressing in addition.
Summary of the invention:
The object of the present invention is to provide a kind of power high efficiency grinding head, it puts forth effort to strengthen the relevant specification of grinding spindle, to form the high rigidity of dynamic and static pressure under the running status, reaches the brute force, efficient and improve the surface quality of workpiece of grinding roller.
Formation of the present invention: by main shaft, eccentric bushing, tapered sleeve, the dynamic and static pressure fore bearing, the dynamic and static pressure rear bearing, the rolling thrust bearing, belt pulley, epicoele, cavity of resorption, ante-chamber and back cavity are formed, main shaft 3 is installed in the eccentric bushing 4, front end between eccentric bushing and main shaft is installed dynamic and static pressure fore bearing 1, dynamic and static pressure rear bearing 6 and rolling thrust bearing 7 are installed in the rear end, together pack into again and grind frame housing 5, front end at eccentric bushing 4 is installed tapered sleeve 2, belt pulley 8 is installed in rear end at main shaft 3, and dynamic and hydrostatic bearing oil pocket version is epicoele 9 static pressure, cavity of resorption 11 static pressure, ante-chamber 10 static pressure and back cavity 12 dynamic pressures.
Compared with the prior art, the present invention has following characteristics through improvement:
1. the enlarged diameter to 180 of front and back bearings, 160;
2. the front and back bearings draw ratio is 1;
3. the main shaft bearing fit clearance is 0.085mm～0.090mm;
4. bearing oil cavity configuration form is three chamber static pressure, a chamber dynamic pressure;
5. flow controller adopts the spiral throttling;
6. cavity pressure before improving has increased dynamic pressure effect;
7. the optimization bearing material improves specific pressure, reduces coefficient of friction.
Because the improvement of above several respects, improve the rigidity and the vulnerability to jamming of this bistrique self, be applicable to high-rate grinding, thereby improved the grinding efficiency and the roller surface macroscopic quality of roll, reach the grinding crowned roll, the ground effect of surface roughness Ra 0.03 no cutter trade.
Description of drawings:
Fig. 1 is a structural representation of the present invention, and Fig. 2 is the A-A cutaway view of Fig. 1.
1. dynamic and static pressure fore bearings among the figure, 2. tapered sleeve, 3. main shaft, 4. eccentric bushing, 5. mill frame housing, 6. dynamic and static pressure rear bearing, 7. rolling thrust bearing, 8. belt pulley, 9. epicoele, 10. ante-chamber, 11. cavity of resorptions, 12. back cavities.
The specific embodiment:
As shown in Figure 1 and Figure 2, main shaft 3 is installed in the eccentric bushing 4, front end between eccentric bushing and main shaft is installed dynamic and static pressure fore bearing 1, dynamic and static pressure rear bearing 6 and rolling thrust bearing 7 are installed in the rear end, together pack into again and grind frame housing 5, front end at eccentric bushing 4 is installed tapered sleeve 2, in the rear end of main shaft 3 belt pulley 8 is installed, and dynamic and hydrostatic bearing oil pocket version is epicoele 9 static pressure, cavity of resorption 11 static pressure, ante-chamber 10 static pressure and back cavity 12 dynamic pressures.
Claims (1)
1. power high efficiency grinding head, by main shaft, eccentric bushing, tapered sleeve, the dynamic and static pressure fore bearing, the dynamic and static pressure rear bearing, the rolling thrust bearing, belt pulley, epicoele, cavity of resorption, ante-chamber and back cavity are formed, it is characterized in that: main shaft (3) is installed in the eccentric bushing (4), front end between eccentric bushing and main shaft is installed dynamic and static pressure fore bearing (1), dynamic and static pressure rear bearing (6) and rolling thrust bearing (7) are installed in the rear end, together pack into again and grind frame housing (5), front end at eccentric bushing (4) is installed tapered sleeve (2), belt pulley (8) is installed in rear end at main shaft (3), and dynamic and hydrostatic bearing oil pocket version is epicoele (9) static pressure, cavity of resorption (11) static pressure, ante-chamber (10) static pressure and back cavity (12) dynamic pressure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910102508A CN101530977A (en) | 2009-04-10 | 2009-04-10 | Power high efficiency grinding head |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910102508A CN101530977A (en) | 2009-04-10 | 2009-04-10 | Power high efficiency grinding head |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101530977A true CN101530977A (en) | 2009-09-16 |
Family
ID=41101943
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200910102508A Pending CN101530977A (en) | 2009-04-10 | 2009-04-10 | Power high efficiency grinding head |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101530977A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102513555A (en) * | 2011-12-29 | 2012-06-27 | 重庆机床(集团)有限责任公司 | High-speed and high-rigidity main shaft system rotary support structure |
| CN102554718A (en) * | 2012-03-12 | 2012-07-11 | 无锡市启龙机床有限公司 | Main shaft supporting structure of centerless grinder for grinding valve lock groove |
| CN102785137A (en) * | 2012-08-20 | 2012-11-21 | 无锡键禾数控机床有限公司 | Grinding wheel spindle structure for valve stem numerical-control centerless grinder |
| CN104690613A (en) * | 2015-03-31 | 2015-06-10 | 马鞍山市恒利达机械刀片有限公司 | Cylindrical grinder easy to assemble and maintain |
| CN105328567A (en) * | 2015-11-27 | 2016-02-17 | 贵州大学 | Structure of adjustable high-speed precise roller grinding head and manufacturing method of structure |
-
2009
- 2009-04-10 CN CN200910102508A patent/CN101530977A/en active Pending
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102513555A (en) * | 2011-12-29 | 2012-06-27 | 重庆机床(集团)有限责任公司 | High-speed and high-rigidity main shaft system rotary support structure |
| CN102554718A (en) * | 2012-03-12 | 2012-07-11 | 无锡市启龙机床有限公司 | Main shaft supporting structure of centerless grinder for grinding valve lock groove |
| CN102785137A (en) * | 2012-08-20 | 2012-11-21 | 无锡键禾数控机床有限公司 | Grinding wheel spindle structure for valve stem numerical-control centerless grinder |
| CN104690613A (en) * | 2015-03-31 | 2015-06-10 | 马鞍山市恒利达机械刀片有限公司 | Cylindrical grinder easy to assemble and maintain |
| CN104690613B (en) * | 2015-03-31 | 2017-02-22 | 马鞍山市恒利达机械刀片有限公司 | Cylindrical grinder easy to assemble and maintain |
| CN105328567A (en) * | 2015-11-27 | 2016-02-17 | 贵州大学 | Structure of adjustable high-speed precise roller grinding head and manufacturing method of structure |
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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 | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Open date: 20090916 |