CN101413537B - High precision and high rigidity shaft radial combination bearing - Google Patents
High precision and high rigidity shaft radial combination bearing Download PDFInfo
- Publication number
- CN101413537B CN101413537B CN2008102291932A CN200810229193A CN101413537B CN 101413537 B CN101413537 B CN 101413537B CN 2008102291932 A CN2008102291932 A CN 2008102291932A CN 200810229193 A CN200810229193 A CN 200810229193A CN 101413537 B CN101413537 B CN 101413537B
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- Prior art keywords
- axial
- roller
- retainer
- row
- radial
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C2300/00—Application independent of particular apparatuses
- F16C2300/10—Application independent of particular apparatuses related to size
- F16C2300/14—Large applications, e.g. bearings having an inner diameter exceeding 500 mm
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- Rolling Contact Bearings (AREA)
Abstract
The invention discloses a high-precision and high-rigidity radial-axial combined bearing which mainly consists of a housing washer, a first shaft washer, a second shaft washer, lower-row axial rollers, upper-row axial rollers, a self-locking screw, a lower-row retainer, an upper-row retainer and radial rollers; the first shaft washer and the second shaft washer are connected into a whole body by the self-locking screw to form two axial race surfaces and a radial race surface; the housing washer is provided with three race surfaces, an axial lower race surface is connected with the first shaft washer by the lower-row axial rollers, an axial upper race surface is connected with the second shaft washer by the upper-row axial rollers, and a radial race surface of the housing washer is connected with the first shaft washer by the radial rollers; the lower-row axial rollers are connected with the lower-row retainer, and the upper-row axial rollers are connected with the upper-row retainer. The radial-axial combined bearing has the beneficial effects of meeting the axial and radial high-rigidity requirements of the bearing, and meeting the requirements of the product for low friction and high lubrication.
Description
Technical field
The present invention relates to machine tool field such as accurate digital control milling machine, boring machine, machining center, relate in particular to high-accuracy, high rigidity shaft radial combination bearing.
Background technique
Continuous development along with China's machine industry, especially machine tool structure is brought in constant renewal in, the required precision of worktable such as some accurate digital control milling machines, boring machine, machining center is more and more higher, and the old airframe bearing that supports precision stage has been difficult to satisfy the requirement of the highi degree of accuracy of lathe, low friction, high rigidity.
At the requirement of precision stage, urgent need will provide a kind of novel combination bearing, overcomes the shortcoming of old infrastructure product, adapts to the demand in precision machine tool field.
Summary of the invention
The purpose of this invention is to provide a kind of high-accuracy, high rigidity shaft radial combination bearing, the diameter of axle that had both satisfied bearing has satisfied the high lubricated requirement of the low friction of product again to high rigidity requirement.
In order to achieve the above object, technological scheme of the present invention is as follows:
High-accuracy, high rigidity shaft radial combination bearing, mainly by seat ring, first blowout patche, second blowout patche, down arrange axial roller, on arrange axial roller, self-locking screw, down arrange retainer, on arrange retainer and radial roller is formed, first blowout patche and second blowout patche connect into integral body by the self-locking screw, form radially roller surface of two axial roller surfaces and; Seat ring has three roller surfaces, axially descends roller surface to be connected by arranging axial roller down with first blowout patche, axially goes up roller surface to be connected by the axial roller of last row with second blowout patche, and seat ring radially roller surface is connected by radial roller with first blowout patche; Under arrange axial roller and be connected with following row's retainer, on arrange axial roller and be connected with last row's retainer.
The invention has the beneficial effects as follows: the diameter of axle replaces existing thrust and radial bearing to the combination form structure, and axial two row's ultraprecise thrust rollers have accurate retainer, and axial high rigidity requirement is satisfied in outer ring, L-cross section ring, the pre-interference in blowout patche assembling back; The L-cross section ring and the outer ring of the two rib raceways of band forms radially pre-interference, satisfies radially high rigidity requirement; The eccentric pocket hole novel high-strength nylon cages of taking turns had both guaranteed effectively separating of retainer and raceway, rolling element is gone slick in retainer pocket hole, steadily, flexibly, thereby realized the low friction of product requirement; The lubricant oil slotted eye that outer ring, the ring design of L-cross section have lubricating function again is to satisfy the lubricating requirement fully again of product; The set screw of design band self-locking screw thread packing ring makes the fastening safety of bearing parts.
Description of drawings
Fig. 1 is that the present invention is high-accuracy, the structural representation of high rigidity shaft radial combination bearing.
Fig. 2 is the take turns structural representation of pocket hole high-strength nylon retainer of off-centre of the present invention.
The A-A of Fig. 3 Fig. 2 is to sectional view.
Among the figure: 1, seat ring, 2, first blowout patche, 3, second blowout patche, 4, arrange axial roller down, 5, on arrange axial roller, 6, the self-locking screw, 7, arrange retainer down, 8, on arrange retainer, 9, radial roller.
Embodiment
Below in conjunction with accompanying drawing the present invention is done description in further detail:
As shown in Figure 1, the present invention mainly by seat ring 1, first blowout patche 2, second blowout patche 3, down arrange axial roller 4, on arrange axial roller 5, self-locking screw 6, down arrange retainer 7, on arrange retainer 8 and radial roller 9 is formed, first blowout patche 2 and second blowout patche 3 connect into integral body by self-locking screw 6, form radially roller surface of two axial roller surfaces and; Seat ring 1 has three roller surfaces, axially descends roller surface to be connected by arranging axial roller 4 down with first blowout patche 2, axially goes up roller surface to be connected by the axial roller 5 of last row with second blowout patche 3, and integral body is born bi-directional axial load; Seat ring 1 radially roller surface is connected by radial roller 9 with first blowout patche 2, bears radial load and tilting moment; Under arrange axial roller 4 and be connected with following row's retainer 7, form row roller, retainer assembly down, the axial roller 5 of last row is connected with last row's retainer 8, row roller, retainer assembly in the formation, two row's assembly control rollers turn round on correct roller surface, simultaneously lasso is connected into integral body, satisfy axially, radially high rigidity requirement.
Fig. 2 and Fig. 3 are the take turns structural representation of pocket hole novel high-strength nylon cages of off-centre of the present invention, and center, two pocket hole, B place is the eccentric pocket hole of taking turns not at same axial position.Axially the pocket hole site not in same in the heart, rolling element is gone slick in retainer pocket hole, improved the smoothness of operation and the flexibility of bearing, reduced frictional force.
High-accuracy, high rigidity shaft radial combination bearing of the present invention is applicable on the equipment such as bearing configuration in micro swivel, chuck and milling head and measurement and the experiment, this project is on probation on certain company's high speed gear grinding machine, runnability is good, steady quality, satisfy user's usage requirement fully, alternative import.
Claims (1)
1. high-accuracy, high rigidity shaft radial combination bearing, it is characterized in that, this combination bearing mainly by seat ring (1), first blowout patche (2), second blowout patche (3), down arrange axial roller (4), on arrange axial roller (5), self-locking screw (6), down arrange retainer (7), on arrange retainer (8) and radial roller (9) is formed, first blowout patche (2) and second blowout patche (3) connect into integral body by self-locking screw (6), form radially roller surface of two axial roller surfaces and; Seat ring (1) has three roller surfaces, axially roller surface is connected by arranging axial roller (4) down with first blowout patche (2) down, axially go up roller surface and be connected by the axial roller of last row (5) with second blowout patche (3), seat ring (1) radially roller surface is connected by radial roller (9) with first blowout patche (2); Under arrange axial roller (4) and be connected with following row's retainer (7), on arrange axial roller (5) and be connected with last row's retainer (8); Last row's retainer (8), arrange retainer (7) down and be center, pocket hole not at the off-centre of the same axial position pocket hole high-strength nylon retainer of taking turns.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008102291932A CN101413537B (en) | 2008-11-26 | 2008-11-26 | High precision and high rigidity shaft radial combination bearing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008102291932A CN101413537B (en) | 2008-11-26 | 2008-11-26 | High precision and high rigidity shaft radial combination bearing |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101413537A CN101413537A (en) | 2009-04-22 |
| CN101413537B true CN101413537B (en) | 2011-02-09 |
Family
ID=40594210
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2008102291932A Active CN101413537B (en) | 2008-11-26 | 2008-11-26 | High precision and high rigidity shaft radial combination bearing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101413537B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE202010002282U1 (en) * | 2009-05-25 | 2010-05-12 | Aktiebolaget Skf | Rig bearing arrangement |
| CN103527720A (en) * | 2012-07-05 | 2014-01-22 | 北京精密机电控制设备研究所 | Harmonic reducer |
| CN115045908B (en) * | 2022-04-15 | 2024-01-30 | 河南科技大学 | High-precision low-friction turntable bearing |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4386811A (en) * | 1980-07-07 | 1983-06-07 | Skf Industrial Trading & Development Co. | Ball bearing |
| CN1079806A (en) * | 1992-06-08 | 1993-12-22 | 北京市空心滚子轴承研究开发部 | The complete set of hollow roller bearing that small shrink value is arranged |
| CN201003546Y (en) * | 2006-10-25 | 2008-01-09 | 中机洛阳轴承科技有限公司 | Three-row cylindrical roller combined bearing integral retainer for rotary platform |
| CN201047394Y (en) * | 2007-05-31 | 2008-04-16 | 上海梅山钢铁股份有限公司 | Sphero-cylindrical type roller turning bearing |
| CN201301900Y (en) * | 2008-11-26 | 2009-09-02 | 瓦房店轴承集团有限责任公司 | Axial and radial combination bearing with high precision and high rigidity |
-
2008
- 2008-11-26 CN CN2008102291932A patent/CN101413537B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4386811A (en) * | 1980-07-07 | 1983-06-07 | Skf Industrial Trading & Development Co. | Ball bearing |
| CN1079806A (en) * | 1992-06-08 | 1993-12-22 | 北京市空心滚子轴承研究开发部 | The complete set of hollow roller bearing that small shrink value is arranged |
| CN201003546Y (en) * | 2006-10-25 | 2008-01-09 | 中机洛阳轴承科技有限公司 | Three-row cylindrical roller combined bearing integral retainer for rotary platform |
| CN201047394Y (en) * | 2007-05-31 | 2008-04-16 | 上海梅山钢铁股份有限公司 | Sphero-cylindrical type roller turning bearing |
| CN201301900Y (en) * | 2008-11-26 | 2009-09-02 | 瓦房店轴承集团有限责任公司 | Axial and radial combination bearing with high precision and high rigidity |
Non-Patent Citations (1)
| Title |
|---|
| 叶燚玺.大型回转支承装置故障机理及故障诊断技术的研究.《中国优秀硕士学位论文全文数据库 工程科技Ⅱ辑》.2005,7,12. * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101413537A (en) | 2009-04-22 |
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| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |