CN2851705Y - High-rigidity multi-chamber feedback static pressure bearing - Google Patents
High-rigidity multi-chamber feedback static pressure bearing Download PDFInfo
- Publication number
- CN2851705Y CN2851705Y CN 200520046923 CN200520046923U CN2851705Y CN 2851705 Y CN2851705 Y CN 2851705Y CN 200520046923 CN200520046923 CN 200520046923 CN 200520046923 U CN200520046923 U CN 200520046923U CN 2851705 Y CN2851705 Y CN 2851705Y
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- oil
- feedback
- reducers
- flow controller
- static pressure
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Abstract
The utility model discloses a high-rigidity multi-chamber feedback static pressure bearing, which comprises an oil supply system, feedback reducers, a bearing body, an oil hole, oil chambers, and pressure oil inlet holes of the feedback reducers, wherein the number of the oil chambers are the multiple of two and three, and the feedback reducers are double-face thin film feedback reducers which are in a center oil-entering mode. The number of the oil chambers are six, the feedback reducers of the oil cavities are six groups of double-face thin film feedback reducer which adopt the center oil-entering mode, and the oil supply pressure is 3.5 MPa. A static pressure oil cooler is arranged in the oil supply system. The utility model can solve the difficulties in the past technology and overcome and make up the insufficiency of other bearings, and has high rigidity and turning accuracy.
Description
Technical field
The utility model relates to a kind of hydrostatic bearing, especially a kind of hydrodynamic journal liquid polymers that are used for high-accuracy grinding machine
Background technique
At present, existing a considerable amount of grinding machines have been used hydrodynamic journal liquid polymers, almost spread all over all kinds of grinding machines, and the development of product has been played certain progradation.Along with lathe develops to high speed, heavy duty, highi degree of accuracy direction, hydrodynamic journal liquid polymers are also among constantly improving and developing.Bearing is one of key foundation part that influences machining accuracy, and in precision grinder, the rotating accuracy, raising vibrationproof performance and the moving rigidity that improve bearing more and more become main research direction.In hydrodynamic journal liquid polymers, axle often is in work under the pure liquid lubrication state with bearing, and bearing is subjected to the influence of relative velocity little, is applicable to wide velocity variations scope.Owing to be pure liquid lubrication, the life-span that part uses is long, and starting power is little, and it not only has good absorbing, and also has the reduction error characteristics relevant with the oil pocket number of bearing.Extensive use four oil pocket hydrodynamic journal liquid polymers in the existing grinding machine, and the ability to function of four oil pocket hydrodynamic journal liquid polymers homogenizing errors is poor, directly has influence on the performance of the rotating accuracy and the grinding work piece of main shaft.
Summary of the invention
The utility model is to solve existing hydrodynamic journal liquid polymers poor rigidity, the problem of the grinding machine low precision that causes a little less than the homogenizing error ability, a kind of high rigidity multi-cavity feedback hydrostatic bearing with high rigidity and high rotating accuracy is provided, improves the grinding accuracy of axis system rigidity and workpiece.
The technical solution of the utility model is achieved in that
A kind of high rigidity multi-cavity feedback hydrostatic bearing comprises oil supply system, feedback flow controller, bearing body, oil pocket, oilhole, feedback flow controller pressure oil inlet hole.The oil pocket number is two and three multiple, and the feedback flow controller is the two-side film membrane feedback flow controller of center oil-feed mode.
The oil pocket number is six, and its feedback flow controller adopts six groups of two-side film membrane feedback flow controllers of center oil-feed mode, charge oil pressure 3.5MPa.
Be provided with the static pressure oil cooler in the oil supply system.
The beneficial effects of the utility model are: high rigidity multi-cavity feedback hydrostatic bearing has solved the difficult point in the conventional art, overcomes and remedied the deficiency of other bearings, has high rigidity and good rotating accuracy.
Adopt high rigidity multi-cavity feedback hydrostatic bearing, successfully be applied on the MK13100/6000-H numerical control external cylindrical grinding machine, this grinding machine spindle diameter phi 150, the moving rigidity of bearing is greater than 1 μ/1000N, the grinding diameter is that φ 810 long 3340mm weigh 12.75 tons workpiece, and grinding performance reaches and surpassed technical order.
Description of drawings
Fig. 1 is a structural representation of the present utility model;
Fig. 2 is the A-A sectional view of Fig. 1;
Fig. 3 uses grinding machine spindle structural representation of the present utility model.
Embodiment
The utility model will be further described below in conjunction with accompanying drawing and embodiment.
As Fig. 1, shown in 2, high rigidity multi-cavity feedback hydrostatic bearing comprises oil supply system, the feedback flow controller, and bearing body 1,, oil pocket 2, oilhole 3 feedback flow controller pressure oil inlet holes 4.The number of oil pocket 2 is two and three multiple, and the feedback flow controller is the two-side film membrane feedback flow controller of center oil-feed mode.
As shown in Figure 3, grinder wheel frame axis system is one of important components, and its structure precision, rigidity will directly have influence on the performance of grinding work piece.In the wheel stand main shaft hydrostatic bearing oil pocket number the more, the effect of homogenizing error is stronger.
It is that the frictional resistance hydrostatic bearing is hanged down in two and three multiple, the shallow chamber of six oil pockets that can reduce axle journal 5 triangles and oval error that the utility model adopts the oil pocket number.In order to improve bearing film rigidity, adopt six groups of two-side film membrane feedback flow controllers of center oil-feed mode, charge oil pressure 3.5MPa.
The temperature rise of hydrostatic bearing has a direct impact bearing performance, and oil supply system of the present utility model is furnished with the static pressure oil cooler, rationally uses lubricant oil to obtain stable static pressure performance and quite high rigidity.
High rigidity multi-cavity feedback hydrostatic bearing of the present utility model can solve the difficult point in the conventional art, overcomes and remedied the deficiency of other bearings, has high rigidity and good rotating accuracy.
Adopt high rigidity multi-cavity feedback hydrostatic bearing, successfully be applied on the MK13100/6000-H numerical control external cylindrical grinding machine, main shaft diameter phi 150, the moving rigidity of bearing is greater than 1 μ/1000N, the grinding diameter is that φ 810 long 3340mm weigh 12.75 tons workpiece, grinding performance reaches and has surpassed technical order, has waltzed through technical evaluation.
Claims (3)
1. one kind high rigidity multi-cavity feeds back hydrostatic bearing, comprise oil supply system, the feedback flow controller, bearing body (1), oil pocket (2), oilhole (3), feedback flow controller pressure oil inlet hole (4), it is characterized in that the number of described oil pocket (2) is two and three multiple, described feedback flow controller is the two-side film membrane feedback flow controller of center oil-feed mode.
2. high rigidity multi-cavity feedback hydrostatic bearing according to claim 1 is characterized in that the number of described oil pocket (2) is six, and its feedback flow controller adopts six groups of two-side film membrane feedback flow controllers of center oil-feed mode, charge oil pressure 3.5MPa.
3. high rigidity multi-cavity feedback hydrostatic bearing according to claim 1 is characterized in that, is provided with the static pressure oil cooler in the described oil supply system.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520046923 CN2851705Y (en) | 2005-11-25 | 2005-11-25 | High-rigidity multi-chamber feedback static pressure bearing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520046923 CN2851705Y (en) | 2005-11-25 | 2005-11-25 | High-rigidity multi-chamber feedback static pressure bearing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2851705Y true CN2851705Y (en) | 2006-12-27 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200520046923 Expired - Lifetime CN2851705Y (en) | 2005-11-25 | 2005-11-25 | High-rigidity multi-chamber feedback static pressure bearing |
Country Status (1)
| Country | Link |
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| CN (1) | CN2851705Y (en) |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100560294C (en) * | 2008-07-03 | 2009-11-18 | 厦门大学 | The block type film throttling back hydrostatic slideway structure of grinding machine |
| CN101403415B (en) * | 2008-11-04 | 2010-06-09 | 湖南大学 | End face throttling structure of high speed principal shaft liquid sliding bearing |
| CN103831718A (en) * | 2014-03-07 | 2014-06-04 | 佛山市南海区洪智机械厂 | Static-pressure grinding head |
| CN103909469A (en) * | 2014-04-25 | 2014-07-09 | 湖大海捷(湖南)工程技术研究有限公司 | Thin-film restrictor hybrid bearing for roll grinder grinding wheel spindle |
| CN104235185A (en) * | 2013-06-11 | 2014-12-24 | 镇江市申茂机械有限公司 | A sliding bearing of a forging press |
| CN105570301A (en) * | 2016-02-19 | 2016-05-11 | 天津市第二机床有限公司 | High-precision static pressure main shaft |
| CN108662105A (en) * | 2018-05-24 | 2018-10-16 | 青岛科技大学 | A kind of throttling pressurized lead screw pair of built-in two-side film membrane |
| CN109702501A (en) * | 2018-12-14 | 2019-05-03 | 广州市昊志机电股份有限公司 | Intracavitary feedback throttle static pressure turntable |
| CN114658762A (en) * | 2022-04-12 | 2022-06-24 | 西安热工研究院有限公司 | Hydrostatic bearing capable of reducing temperature |
-
2005
- 2005-11-25 CN CN 200520046923 patent/CN2851705Y/en not_active Expired - Lifetime
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100560294C (en) * | 2008-07-03 | 2009-11-18 | 厦门大学 | The block type film throttling back hydrostatic slideway structure of grinding machine |
| CN101403415B (en) * | 2008-11-04 | 2010-06-09 | 湖南大学 | End face throttling structure of high speed principal shaft liquid sliding bearing |
| CN104235185A (en) * | 2013-06-11 | 2014-12-24 | 镇江市申茂机械有限公司 | A sliding bearing of a forging press |
| CN103831718A (en) * | 2014-03-07 | 2014-06-04 | 佛山市南海区洪智机械厂 | Static-pressure grinding head |
| CN103909469A (en) * | 2014-04-25 | 2014-07-09 | 湖大海捷(湖南)工程技术研究有限公司 | Thin-film restrictor hybrid bearing for roll grinder grinding wheel spindle |
| CN105570301A (en) * | 2016-02-19 | 2016-05-11 | 天津市第二机床有限公司 | High-precision static pressure main shaft |
| CN108662105A (en) * | 2018-05-24 | 2018-10-16 | 青岛科技大学 | A kind of throttling pressurized lead screw pair of built-in two-side film membrane |
| CN109702501A (en) * | 2018-12-14 | 2019-05-03 | 广州市昊志机电股份有限公司 | Intracavitary feedback throttle static pressure turntable |
| CN114658762A (en) * | 2022-04-12 | 2022-06-24 | 西安热工研究院有限公司 | Hydrostatic bearing capable of reducing temperature |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20061227 |
|
| EXPY | Termination of patent right or utility model |