CN105134790A - Rotary supporting device - Google Patents
Rotary supporting device Download PDFInfo
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- CN105134790A CN105134790A CN201510506639.1A CN201510506639A CN105134790A CN 105134790 A CN105134790 A CN 105134790A CN 201510506639 A CN201510506639 A CN 201510506639A CN 105134790 A CN105134790 A CN 105134790A
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- bearing
- outer ring
- blind hole
- support device
- rotation support
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Abstract
The invention provides a rotary supporting device which comprises a bearing and a bearing pedestal. At least two sealing rubber rings spaced in the axial direction are clamped between the outer ring of the bearing and the inner bore face of the bearing pedestal. An annular damping space filled with damping liquid is defined by the opposite side faces of every two adjacent sealing rubber rings, the peripheral face of the outer ring of the bearing and the inner bore face of the bearing pedestal jointly. The outer ring of the bearing and/or the bearing pedestal are/is provided with a liquid injection hole for injecting the damping liquid into the annular damping space. An annular damping layer is defined by the damping liquid in the portion, between the bearing and the bearing pedestal, of the annular damping space, and can provide radial supporting force for the bearing; and moreover, the damping liquid provides flexible support so that vibration can be greatly reduced, and impact is absorbed. Meanwhile, because the damping liquid is distributed in the circumferential direction, circumferential loads of the bearing can be distributed evenly, and rotation is more stable.
Description
Technical field
The present invention relates to a kind of rotation support device.
Background technique
Along with mach development, the demand of high-precision numerical control machine tool is increasing, and bearing is as the part used a large amount of in numerical control machine tool, plays very important effect to the machining accuracy of lathe, usability.Bearing is generally that inner ring overlaps on the rotating shaft in use, and outer ring is fixed in fixed base, realizes the rotational support of countershaft.Traditional bearing is generally directly coordinate with the endoporus side face of fixed base the location realizing countershaft axis by the outer circumferential face of its outer ring, but when there is vibration in axis of rotation process, because outer ring is rigid contact with contacting of fixed base, this is just easy to the transmission aggravating vibration, produce a large amount of noises, very large obstacle is brought to the stability that rotatingshaft rotates, reduce the working life of fixed base and bearing, affect the normal operation of equipment, greatly affect the machining accuracy of lathe, can not Ultra-High Speed Machine Tools be applicable to simultaneously.
Summary of the invention
The object of the present invention is to provide the rotation support device of a kind of bearing and fixed base flexible contact, in order to solve existing bearing and fixed base rigid contact, vibrate comparatively large, that ultra high speed rotation can not be realized problem.
In order to solve the problems of the technologies described above, rotation support device of the present invention adopts following technological scheme: a kind of rotation support device, comprise bearing and bearing support, the O-ring seal that at least two axially spaced-aparts are arranged is folded with between bearing outer ring and inner hole of bearing seat face, the adjacent opposite flank of two O-ring seals, the outer circumferential face of bearing outer ring and inner hole of bearing seat face surround the annular damper space for filling damping liquid jointly, and bearing outer ring and/or bearing support are provided with the liquid filling hole for injecting damping liquid in annular damper space.
Described damping liquid is lubricant oil, and described bearing outer ring is provided with the oily passage of mistake entering Bearing inner for the lubricant oil in annular damper space.
The inner peripheral surface of bearing outer ring has the raceway coordinated that to roll with rolling element, and the oily passage of described mistake has the pore oil outlet be communicated with described raceway.
The oily passage of described mistake also comprises the shoe cream room being positioned at pore oil outlet upstream, is filled with sponge in described shoe cream room.
The oily passage of described mistake comprises the large footpath blind hole extended radially inwardly by the outer circumferential face of bearing outer ring and the path blind hole extended internally by the rolling track and radial of the inner peripheral surface of bearing outer ring, shoe cream room is the inner chamber of large footpath blind hole, pore oil outlet is the aperture of path blind hole, the centerline parallel of large footpath blind hole and path blind hole and being staggered at the axial direction of bearing ring, large footpath blind hole and path blind hole are intersected by bottom and are communicated with.
The oily passage of described mistake has multiple and uniform in circumference, described lasso body is also provided with the annular oil guide groove connecting each large footpath blind hole successively.
The O-ring seal that at least two axially spaced-aparts are arranged is folded with between the bearing outer ring of rotation support device of the present invention and inner hole of bearing seat face, the opposite flank of adjacent two O-ring seals, the outer circumferential face of bearing outer ring and inner hole of bearing seat face surround the annular damper space for filling damping liquid jointly, damping liquid in it is surrounded annular damper layer by the annular damper space between such bearing and bearing support, radial support force can be provided to bearing, and provided by damping liquid be supported for flexible support, greatly can reduce vibration, absorb and impact, damping liquid circumference distribution simultaneously can make the circumferential load diatibution of bearing even, rotate more steady.
Further, damping liquid is lubricant oil, such lubricant oil can pass through oily passage and enter Bearing inner, bearing is lubricated, and the lubricant oil being positioned at annular damper space can play the effect supported bearing, so not only achieve the lubrication of bearing, reach again the object of spring bearing.
Further, cross oily passage is communicated with lasso body raceway by pore, reduce the inlet of lubricant oil, the amount of lubricant oil is avoided too much to cause waste, when rolling element rotates, the lubricant oil at pore oil outlet place can take out of and then make lubrication pockets to overlay on rolling element and raceway by rolling element, makes lubrication ratio more even, be applicable to bearing ultra high speed rotate, oily phenomenon can not be got rid of.
Further, cross in oily passage shoe cream room and be filled with sponge, sponge can reduce lubricant oil and enters flow of lubrication in bearing in use, lubricant oil is absorbed by the sponge and enters in bearing by pore oil outlet after oozing out, reduce lubricant oil and enter speed in bearing, such control can control to the amount crossing in oily passage the lubricant oil injected flow that lubricant oil enters bearing and lubricant oil be met use, avoid lubricant oil too much and cause waste.
Accompanying drawing explanation
Fig. 1 is the structural representation of the embodiment one of rotation support device of the present invention.
Embodiment
The embodiment one of rotation support device of the present invention: as shown in Figure 1, comprise bearing and bearing support 4, in the inner hole surface of its bottom bracket 4, axially spaced-apart is provided with two ring-like bearing support seal ring mounting grooves, the outer circumferential face of bearing outer ring 3 is provided with the bearing sealed ring mounting groove corresponding with the bearing support seal ring mounting groove on bearing support 4, O-ring seal 6 is housed in bearing sealed ring mounting groove, when bearing assemble is on bearing support, O-ring seal 6 is folded between bearing support and bearing outer ring, the inner hole surface of such bearing support, the side of the outer circumferential face of bearing outer ring and two O-ring seals defines an annular damper space jointly, bearing support is provided with the liquid filling hole for injecting damping liquid to annular damper space, in the present embodiment, damping liquid is lubricant oil, by the oil hole 5 on bearing support 4 in this annular damper space during oiling, the periphery of bearing outer ring defines an annular lubricant oil reservoir, this lube layer also can be referred to as liquid damping layer, radial support power can be provided and this support force is flexible support power to bearing, oil pressure one timing in this ring packing space, this liquid damping layer can ensure that bearing radial load is evenly distributed, also the vibration and noise that produce when bearing runs up is greatly reduced.
Bearing comprises coaxially sheathed bearing ring and rotation and is assemblied in rolling element between two bearing rings, bearing ring comprises bearing inner race 1 and bearing outer ring 3, the inner peripheral surface of bearing outer ring and the outer circumferential face of bearing inner race are provided with the arcuate groove coordinated of rolling with the rolling element 2 of bearing, in bearing, rolling element 2 between outer ring to be fixed on retainer 10 and by bearing, in arcuate groove on outer ring and bearing, roll and coordinate in outer ring, wherein, bearing outer ring was also provided with oily passage, cross oily passage and there is the pore oil outlet be communicated with raceway, in the present embodiment, cross oily passage to comprise and be located at the large footpath blind hole 7 extending radially inwardly to the arcuate groove of bearing outer ring inner peripheral surface by the outer circumferential face of bearing outer ring on bearing outer ring 3 and the path blind hole 9 extended radially inwardly by the inner peripheral surface of bearing outer ring, the aperture that large footpath blind hole 7 is positioned at bearing outer circumferential face is filler opening, filler opening is communicated with annular damper space and lubricant oil wherein can be made to enter oily passage, large footpath blind hole 7 has multiple and is uniformly distributed in the circumferential, the outer circumferential face of bearing outer ring is also provided with the annular oil guide groove that circumference is communicated with each large footpath blind hole successively, annular oil guide groove is between two seal ring cushion rubbers, the aperture of large footpath blind hole is greater than the aperture of path blind hole, the aperture that path blind hole 9 is positioned at bearing outer ring inner peripheral surface is pore oil outlet, the axis of large footpath blind hole and path blind hole is staggered in the axial direction, holes position at the bottom of hole is intersected and realizes being communicated with, the aperture of the intercommunicating pore of intersection location can be made so less, form bottleneck structure, slow down the flowing velocity of lubricant oil, cross oily passage and also comprise shoe cream room, shoe cream room is positioned at the upstream of pore oil outlet, sponge is filled with in shoe cream room, in the present embodiment, shoe cream room is surrounded by the hole wall of large footpath blind hole, that is, the inner chamber of large footpath blind hole is shoe cream room, sponge 8 can absorb the lubricant oil entering oily passage from filler opening, the lubricant oil that sponge 8 absorbs can penetrate in path blind hole by the intercommunicating pore connecting large footpath blind hole and path blind hole, avoid that lubricant oil is directly accessible to be entered path blind hole and then be sprayed onto on rolling element, be scrolled body to take out of be coated in rolling element and bearing when rolling element, with the raceway of bearing periphery, relative rolling occurs, on outer ring raceway, make bearing lubrication even, also achieve micro lubricating simultaneously, the convenient use amount controlling lubricant oil, in addition, when not using, sponge can also stop the lubricant oil in bearing outwards to flow out, prevent from revealing.
The embodiment two of rotation support device of the present invention: be with the difference of embodiment one, crossing oily passage is from the outer circumferential face of the bearing outer ring radially-inwardly hole that diminishes gradually, aperture, large footpath section inner chamber wherein near outer circumferential face is shoe cream room, and the path opening be positioned on inner peripheral surface raceway is pore oil outlet.
The embodiment three of rotation support device of the present invention: be with the difference of embodiment one, large footpath blind hole and the dead in line of path blind hole, intercommunication at the bottom of holes hole.
The embodiment four of rotation support device of the present invention: be with the difference of embodiment one, crossing oily passage is located on bearing inner race, correspondingly, the outer circumferential face that pore oil outlet is positioned at bearing inner race is communicated with raceway, and it is outwards flow between bearing inner race and outer ring from the inside of bearing inner race that lubricant oil flows to.
The embodiment five of rotation support device of the present invention: be with the difference of embodiment one, cross oily passage from one end end face axial extension of bearing ring and diametrically gradually near lasso raceway, and the outlet on lasso raceway is pore oil outlet.
The embodiment six of rotation support device of the present invention: be with the difference of embodiment one, liquid filling hole is located on bearing outer ring, and axial direction extends and is communicated with large footpath blind hole.
The embodiment seven of rotation support device of the present invention: be with the difference of embodiment one, bearing outer ring and bearing support is equipped with the liquid filling hole for injecting damping liquid.
The embodiment eight of rotation support device of the present invention: be with the difference of embodiment one, resisting medium is the liquid that other anti-pressure abilities are stronger.
The embodiment nine of rotation support device of the present invention: be with the difference of embodiment one, liquid filling hole has two and is located at supporting base and what way of bearing outer ring respectively,
The embodiment ten of rotation support device of the present invention: with embodiment and difference be, bearing is many row rollers bearing, often arranges ball correspondence and is provided with oily passage, bearing outer ring is equipped with O-ring seal in the both sides of every row roller,
Rotation support device of the present invention can be good at the oil mass controlling lubricant oil in use, can either realize delaying the resistance of oiling flow by sponge, can ensure that again lubricant oil can not leak, lubricated to rolling element by pore oil outlet, automatically lubricant oil can be taken out of when rolling element rotates, lubricating uniform is effective, it also avoid oil spout and gets rid of oily phenomenon, and bearing is run well under ultra high speed annular.
Claims (6)
1. a rotation support device, comprise bearing and bearing support, it is characterized in that, the O-ring seal that at least two axially spaced-aparts are arranged is folded with between bearing outer ring and inner hole of bearing seat face, the adjacent opposite flank of two O-ring seals, the outer circumferential face of bearing outer ring and inner hole of bearing seat face surround the annular damper space for filling damping liquid jointly, and bearing outer ring and/or bearing support are provided with the liquid filling hole for injecting damping liquid in annular damper space.
2. rotation support device according to claim 1, is characterized in that, described damping liquid is lubricant oil, and described bearing outer ring is provided with the oily passage of mistake entering Bearing inner for the lubricant oil in annular damper space.
3. rotation support device according to claim 2, is characterized in that, the inner peripheral surface of bearing outer ring has the raceway coordinated that to roll with rolling element, and the oily passage of described mistake has the pore oil outlet be communicated with described raceway.
4. rotation support device according to claim 3, is characterized in that, the oily passage of described mistake also comprises the shoe cream room being positioned at pore oil outlet upstream, is filled with sponge in described shoe cream room.
5. rotation support device according to claim 4, it is characterized in that, the oily passage of described mistake comprises the large footpath blind hole extended radially inwardly by the outer circumferential face of bearing outer ring and the path blind hole extended internally by the rolling track and radial of the inner peripheral surface of bearing outer ring, shoe cream room is the inner chamber of large footpath blind hole, pore oil outlet is the aperture of path blind hole, the centerline parallel of large footpath blind hole and path blind hole and being staggered at the axial direction of bearing ring, large footpath blind hole and path blind hole are intersected by bottom and are communicated with.
6. rotation support device according to claim 5, is characterized in that, the oily passage of described mistake has multiple and uniform in circumference, described lasso body is also provided with the annular oil guide groove connecting each large footpath blind hole successively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510506639.1A CN105134790B (en) | 2015-08-18 | 2015-08-18 | A kind of rotation support device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510506639.1A CN105134790B (en) | 2015-08-18 | 2015-08-18 | A kind of rotation support device |
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| Publication Number | Publication Date |
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| CN105134790A true CN105134790A (en) | 2015-12-09 |
| CN105134790B CN105134790B (en) | 2017-09-29 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510506639.1A Active CN105134790B (en) | 2015-08-18 | 2015-08-18 | A kind of rotation support device |
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| CN (1) | CN105134790B (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106763219A (en) * | 2016-12-05 | 2017-05-31 | 重庆美的通用制冷设备有限公司 | Bearing assembly and the compressor with it |
| JP2017187086A (en) * | 2016-04-04 | 2017-10-12 | Ntn株式会社 | Vibration control bearing device |
| CN107366682A (en) * | 2016-05-11 | 2017-11-21 | 株式会社捷太格特 | Rolling bearing system |
| CN109109843A (en) * | 2018-08-17 | 2019-01-01 | 苏州辉昌汽车部件有限公司 | A kind of valve body and its production technology of hydraulic vehicle braking valve |
| CN110578753A (en) * | 2019-09-22 | 2019-12-17 | 中国航发沈阳发动机研究所 | Bearing vibration damping structure |
| CN113503305A (en) * | 2021-08-03 | 2021-10-15 | 中国航发湖南动力机械研究所 | Long and thin flexible shaft structure of sectional type engine |
| CN114017487A (en) * | 2021-11-10 | 2022-02-08 | 上海纳铁福传动系统有限公司 | Motor gear shaft system and motor |
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| CN2714884Y (en) * | 2004-06-14 | 2005-08-03 | 洛阳轴研科技股份有限公司 | Outer ring raceway direct lubrication type super-high-speed angular contact ball bearing |
| JP2007321950A (en) * | 2006-06-05 | 2007-12-13 | Ntn Corp | Cylindrical roller bearing |
| JP2008075738A (en) * | 2006-09-20 | 2008-04-03 | Mitsubishi Heavy Ind Ltd | Bearing device |
| CN203453298U (en) * | 2013-08-02 | 2014-02-26 | 杭州人本大型轴承有限公司 | Grease-injection-available sealed bearing |
| CN103635708A (en) * | 2011-06-30 | 2014-03-12 | Ntn株式会社 | Rolling bearing |
| CN103790971A (en) * | 2012-10-30 | 2014-05-14 | 瓦房店福斯特轴承科技开发有限公司 | Single row tapered roller bearing |
| DE102013224596A1 (en) * | 2012-12-10 | 2014-06-12 | Aktiebolaget Skf | Rolling bearing has two bearing rings that are provided with through hole through which lubricant is introduced into gap formed between two rings |
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Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
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| JPH11141557A (en) * | 1997-11-05 | 1999-05-25 | Nippon Seiko Kk | Rolling bearing |
| CN2714884Y (en) * | 2004-06-14 | 2005-08-03 | 洛阳轴研科技股份有限公司 | Outer ring raceway direct lubrication type super-high-speed angular contact ball bearing |
| JP2007321950A (en) * | 2006-06-05 | 2007-12-13 | Ntn Corp | Cylindrical roller bearing |
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| DE102013224596A1 (en) * | 2012-12-10 | 2014-06-12 | Aktiebolaget Skf | Rolling bearing has two bearing rings that are provided with through hole through which lubricant is introduced into gap formed between two rings |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2017187086A (en) * | 2016-04-04 | 2017-10-12 | Ntn株式会社 | Vibration control bearing device |
| CN107366682A (en) * | 2016-05-11 | 2017-11-21 | 株式会社捷太格特 | Rolling bearing system |
| CN106763219A (en) * | 2016-12-05 | 2017-05-31 | 重庆美的通用制冷设备有限公司 | Bearing assembly and the compressor with it |
| CN109109843A (en) * | 2018-08-17 | 2019-01-01 | 苏州辉昌汽车部件有限公司 | A kind of valve body and its production technology of hydraulic vehicle braking valve |
| CN110578753A (en) * | 2019-09-22 | 2019-12-17 | 中国航发沈阳发动机研究所 | Bearing vibration damping structure |
| CN113503305A (en) * | 2021-08-03 | 2021-10-15 | 中国航发湖南动力机械研究所 | Long and thin flexible shaft structure of sectional type engine |
| CN114017487A (en) * | 2021-11-10 | 2022-02-08 | 上海纳铁福传动系统有限公司 | Motor gear shaft system and motor |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105134790B (en) | 2017-09-29 |
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Effective date of registration: 20180510 Address after: 471000 No. 1 axis research road, Jianxi science and Technology Industrial Park, Luoyang, Henan Patentee after: Luoyang Bearing Research Institute Address before: 471039 Fenghua Road 6, hi tech Development Zone, Luoyang, Henan. Patentee before: Zhouyan Science and Technology Co., Ltd., Luoyang |