CN107237837A - A kind of bearing locking component - Google Patents

A kind of bearing locking component Download PDF

Info

Publication number
CN107237837A
CN107237837A CN201710482743.0A CN201710482743A CN107237837A CN 107237837 A CN107237837 A CN 107237837A CN 201710482743 A CN201710482743 A CN 201710482743A CN 107237837 A CN107237837 A CN 107237837A
Authority
CN
China
Prior art keywords
bearing
gland
locking nut
outer ring
locking component
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN201710482743.0A
Other languages
Chinese (zh)
Inventor
赖燕根
陈佳
刘丹丹
伍曦
汤秀清
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Guangzhou Haozhi Electromechanical Co Ltd
Original Assignee
Guangzhou Haozhi Electromechanical Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Guangzhou Haozhi Electromechanical Co Ltd filed Critical Guangzhou Haozhi Electromechanical Co Ltd
Priority to CN201710482743.0A priority Critical patent/CN107237837A/en
Publication of CN107237837A publication Critical patent/CN107237837A/en
Pending legal-status Critical Current

Links

Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16CSHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C35/00Rigid support of bearing units; Housings, e.g. caps, covers
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16CSHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C33/00Parts of bearings; Special methods for making bearings or parts thereof
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16CSHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C33/00Parts of bearings; Special methods for making bearings or parts thereof
    • F16C33/72Sealings
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16CSHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C41/00Other accessories, e.g. devices integrated in the bearing not relating to the bearing function as such
    • F16C41/02Arrangements for equalising the load on a plurality of bearings or their elements

Abstract

The invention discloses a kind of bearing locking component, locking nut including bearing mounting base and fixing bearing, the bearing outer ring is provided with bearing outer ring gland, bearing inner race is provided with gland, the locking nut, bearing outer ring gland, mating surface between gland is provided with sealing structure, the locking nut upper surface is provided with balanced structure, by in locking nut, bearing outer ring gland, gland mutual cooperation face is provided with sealing structure, when the rotational speed is high, cutting fluid and chip is avoided to enter Bearing inner, bearing is caused damage, by setting balanced structure on locking nut, shaft core is maintained in the balance of rotary course, extend the service life of bearing.

Description

A kind of bearing locking component
Technical field
The present invention relates to a kind of locking member, more particularly to a kind of bearing locking component.
Background technology
Electro spindle is recent years in the new of occur machine tool chief axis and spindle motor combine together of digit ctrol machine tool field Technology, electro spindle of the prior art generally includes body, shaft core, motor, stator core, mill bar and bearing etc., and electro spindle is A kind of precision optical machinery of high speed rotation, the rigidity, intensity, stability requirement to shaft core is very high, compared to key connection, pin connection, Shaft core, by interference fit, meets radial positioning with bearing, and the shaft shoulder or other parts carry out axially position, it is ensured that shaft core Rigidity, be extraordinary fit system generally acknowledged at present.The axially position quality of bearing determines bearing to a certain extent Service life, while influenceing the stroke of main shaft and the crudy of main shaft.People would generally be different from common spiral shell using one kind Female self-locking nut realizes the axial locking that spindle shaft mandrel is held, and reduces vibrations during main shaft rotation, existing self-locking nut by It is limited in the performance comparision of self-locking, during actual installation, it usually needs gluing, to prevent from loosening, in bearing locking component Locking nut is tapped with the internal thread matched with shaft core, it is ensured that connection reliability, while end face is provided with frock position, it is easy to disassemble, by In the poor sealing of main shaft, dust in process is often appeared in, chip etc. enters inside electro spindle, influences bearing Service life.
The content of the invention
In order to overcome the deficiencies in the prior art, it is an object of the invention to provide a kind of bearing locking component, have to bearing More preferable axial restraint and radially fixed, with good sealing function, prevents iron filings or cooling medium in the process of front end Deng the entrance of foreign matter.
The purpose of the present invention adopts the following technical scheme that realization:
A kind of bearing locking component, including bearing mounting base and the locking nut of fixing bearing, the bearing outer ring are provided with Bearing outer ring gland, bearing inner race is provided with gland, and the mating surface between the locking nut, bearing outer ring gland, gland is provided with Sealing structure, the locking nut upper surface is provided with balanced structure.
Further, the balanced structure include be located at the equally distributed screwed hole of locking nut upper surface periphery and The mass screw that the screwed hole coordinates.
Further, the sealing structure is the mating surface being located between the locking nut, bearing outer ring gland, gland On maze trough.
Further, the locking nut upper surface offers skewed slot, and the bearing outer ring gland is provided with matches somebody with somebody with skewed slot The protruding block of conjunction, the skewed slot is coordinated with the protruding block using gap.
Further, reverse thread groove is offered in the cylindrical surface of revolution of the locking nut.
Further, the bearing is connected by interference fit with shaft core, and the gland is connected by interference fits and shaft core Connect.
Further, the bearing is coordinated by gap and is arranged in the bearing mounting base.
Further, the locking nut endoporus is provided with internal thread, and the shaft core is provided with outer with the screw-internal thread fit Screw thread.
Compared with prior art, the beneficial effects of the present invention are:
(1) by locking nut, bearing outer ring gland, the mating surface between gland is provided with sealing structure, when high speed is revolved When turning, it is to avoid cutting fluid and chip enter Bearing inner, and bearing is caused damage, with good anti-dust performance;
(2) by setting balanced structure on locking nut, maintain shaft core in the balance of rotary course, extend making for bearing Use the life-span;
(3) locking bearing performance is good, is adapted to rotate at a high speed, simple in construction, ingenious, anti-loosening property is high.
Brief description of the drawings
Fig. 1 is structural representation of the invention;
Fig. 2 is locking nut structure schematic diagram of the invention;
Fig. 3 is the zoomed-in view at A in Fig. 1;
Fig. 4 is locking nut side structure schematic diagram of the invention.
In figure:1st, body;2nd, shaft core;3rd, bearing;31st, bearing outer ring gland;311st, protruding block;32nd, gland;4th, bearing is pacified Fill seat;5th, locking nut;51st, screwed hole;52nd, mass screw;53rd, reverse thread groove;6th, maze trough.
Embodiment
Below, with reference to accompanying drawing and embodiment, the present invention is described further, it is necessary to which explanation is, not Under the premise of afoul, new implementation can be formed between various embodiments described below or between each technical characteristic in any combination Example.
As shown in Figures 1 to 4:A kind of bearing locking component, including bearing mounting base 4, it is fixed in the bearing mounting base 4 There is bearing 3, bearing 3 is coordinated by gap to be arranged in bearing mounting base 4, solid by locking nut 5 in the lower surface of bearing 3 Fixed, provided with screwed hole, shaft core 2 is provided with the external screw thread coordinated with above-mentioned screwed hole, and locking nut 5 is connected by screw thread with shaft core 2 Connect, bearing 3 is connected by interference fit with shaft core 2, the outer ring of bearing 3 is provided with bearing outer ring gland 31, the inner ring of bearing 3 is provided with gland 32, the effect of fixing bearing inner ring and outer ring is each served as, above-mentioned gland 32 is connected with shaft core 2 by interference fits, locking screw Female 5 upper surfaces offer skewed slot, and bearing outer ring gland 31 is provided with the protruding block 311 coordinated with skewed slot, skewed slot and the protruding block 311 are coordinated using gap, and locking nut 5, bearing outer ring gland 31, the mutual cooperation face of gland 32 are provided with sealing structure, locking screw Female 5 upper surfaces are provided with balanced structure.
Above-mentioned bearing mounting base 4 is coordinated by gap to be arranged in body 1, and the step position of bearing mounting base 4 props up body 1 End face, the step surface of bearing outer ring gland 31 props up the other end of bearing mounting base 4, while the step surface of bearing outer ring gland 31 The outer ring of bearing 3 is propped up, fixation is played to the outer ring of bearing 3, bearing mounting base 4, bearing outer ring gland 31, body 4 are provided with Screwed hole, is connected and fixed by screw thread, limits its axial movement, and the inner ring of bearing 3 is fixed by gland 32, is limited The axially activity of the inner ring of bearing 3,.
Above-mentioned sealing structure is to be located at locking nut 5, bearing outer ring gland 31, the maze trough 6 in the mutual cooperation face of gland 32, During shaft core 2 rotates at a high speed, maze trough 6 can prevent cutting fluid and other chips from entering, and prevent to bearing 3 and its The damage of his parts;Above-mentioned balanced structure includes being located at some equally distributed screwed holes 51 of the upper surface periphery of locking nut 5, The mass screw 52 coordinated with screwed hole 51, amount of unbalance is gone out by specific apparatus measures, and balance spiral shell is added in screwed hole 51 Nail 52, makes whole bearing assembly reach balance, offers reverse thread groove 53 in the cylindrical surface of revolution of locking nut 5, this is reverse The direction of rotation when rotation direction of thread groove 53 works with shaft core 2 is on the contrary, when shaft core 2 rotates, can produce certain vortex, and then prevent Cutting fluid and the entrance of other chips.
Above-mentioned bearing locking component plays locking effect by axially engaging with radial fit, wherein the work axially engaged Principle is:The step of bearing mounting base 4 position props up the end face of body 1, and it is another that the step surface of bearing outer ring gland 31 props up bearing mounting base 4 End face, while the step surface of bearing outer ring gland 31 props up the outer ring of bearing 3, bearing mounting base 4, bearing outer ring gland 31, body 1 are equal Screwed hole is provided with, is connected and fixed by screw thread, these three parts is limited and the outer ring of bearing 3 is axially moved, bearing 3 Coordinated by gap and be arranged in bearing mounting base 4, being compressed by frock makes the end face of bearing 3 be connect with the inner face of bearing mounting base 4 Touch, the inner ring of bearing 3 is pushed down by gland 32, limit the inner ring axial float of bearing 3, locking nut 5 is connected with shaft core 2 by screw thread Connect, locking nut 5 props up gland 32, gland 32 compresses the inner ring of bearing 3, using specific frock, locked with certain torque take-up Nut 5, prevents it from loosening, it is to avoid its axial float.
The operation principle of radial fit is:Bearing mounting base 4 by gap coordinate be arranged on body 1 in, bearing 3 by Gap, which coordinates, to be arranged in bearing mounting base 4, and shaft core 2 is interference fitted with bearing 3, bearing outer ring gland 31, gland 32, locking nut 5 process maze trough 6, and better seal effect, gland 32 and the interference fits of shaft core 2, locking are reached by the structure of maze trough 6 Nut 5 is connected through a screw thread with shaft core 2, then by certain torque take-up locking nut 5, prevents it from loosening.
When the rotational speed is high:Shaft core 2 works, and the inner ring of bearing 3, gland 32, locking nut 5 rotate at a high speed, on axle core component Part easily because processing the problems such as amount of unbalance it is excessive, deflect, cause bearing 3 to damage, and then cause shaft core 2 to be damaged Bad, locking nut 5 is provided with a series of uniform screwed holes 51 of arrangement, by specific measuring instrument, measures amount of unbalance, Add mass screw 52 in screw hole 51, balance bearing assembly;Locking nut 5, gland 32, bearing outer ring gland 31 are provided with small The maze trough 6 of gap, during shaft core 2 rotates at a high speed, maze trough 6 can prevent cutting fluid and other chips from entering, and prevent Only to the damage of bearing 3 and other parts, while the reverse thread groove 53 of a constant pitch is processed on the end face of locking nut 5, Direction of rotation when its rotation direction and shaft core 2 work, and then being capable of very great Cheng on the contrary, during the rotation of shaft core 2, certain vortex can be produced Cutting fluid and the entrance of other chips are hindered on degree.
Above-mentioned embodiment is only the preferred embodiment of the present invention, it is impossible to limit the scope of protection of the invention with this, The change and replacement for any unsubstantiality that those skilled in the art is done on the basis of the present invention belong to institute of the present invention Claimed scope.

Claims (8)

1. a kind of bearing locking component, it is characterised in that:Locking nut including bearing mounting base and fixing bearing, the bearing Outer ring is provided with bearing outer ring gland, and bearing inner race is provided with gland, matching somebody with somebody between the locking nut, bearing outer ring gland, gland Conjunction face is provided with sealing structure, and the locking nut upper surface is provided with balanced structure.
2. a kind of bearing locking component according to claim 1, it is characterised in that:The balanced structure is described including being located at The mass screw that the equally distributed screwed hole of locking nut upper surface periphery and the screwed hole coordinate.
3. a kind of bearing locking component according to claim 1, it is characterised in that:In the cylindrical revolution of the locking nut Face offers reverse thread groove.
4. a kind of bearing locking component according to claim 1, it is characterised in that:The sealing structure is to be located at the lock Maze trough in tight mating surface between nut, bearing outer ring gland, gland.
5. a kind of bearing locking component according to claim 1, it is characterised in that:The locking nut upper surface is offered Skewed slot, the bearing outer ring gland is provided with the protruding block coordinated with skewed slot, and the skewed slot is matched somebody with somebody with the protruding block using gap Close.
6. a kind of bearing locking component according to claim 1, it is characterised in that:The bearing passes through interference fit and axle Core is connected, and the gland is connected by interference fits with shaft core.
7. a kind of bearing locking component according to claim 1, it is characterised in that:The bearing is coordinated by gap to be installed In the bearing mounting base.
8. a kind of bearing locking component according to claim 1, it is characterised in that:The locking nut endoporus is provided with interior spiral shell Line, the shaft core is provided with the external screw thread with the screw-internal thread fit.
CN201710482743.0A 2017-06-22 2017-06-22 A kind of bearing locking component Pending CN107237837A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201710482743.0A CN107237837A (en) 2017-06-22 2017-06-22 A kind of bearing locking component

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201710482743.0A CN107237837A (en) 2017-06-22 2017-06-22 A kind of bearing locking component

Publications (1)

Publication Number Publication Date
CN107237837A true CN107237837A (en) 2017-10-10

Family

ID=59986793

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201710482743.0A Pending CN107237837A (en) 2017-06-22 2017-06-22 A kind of bearing locking component

Country Status (1)

Country Link
CN (1) CN107237837A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109357872A (en) * 2018-11-30 2019-02-19 瓦房店轴承集团国家轴承工程技术研究中心有限公司 Improved bear vibration detection machine pressing device
CN110500362A (en) * 2019-07-23 2019-11-26 福州三金机动车配件有限公司 A kind of motor vehicle switch bearing rod
CN113231657A (en) * 2021-04-19 2021-08-10 广州市昊志机电股份有限公司 Main shaft bearing locking structure, electric main shaft and machine tool

Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN201270444Y (en) * 2008-08-29 2009-07-08 刘森钢 Self-blowing apparatus of high speed electric main shaft having reversed thread
CN203035711U (en) * 2012-12-29 2013-07-03 广州市昊志机电股份有限公司 Locknut retaining structure for high-speed ball electric spindle bearing
CN103203691A (en) * 2013-03-14 2013-07-17 南京航空航天大学 Thickness changeable structure grinding wheel for super-high-speed grinding
CN203711870U (en) * 2013-12-31 2014-07-16 广州市昊志机电股份有限公司 Dynamic balance adjustment mechanism of machine tool direct connection main shaft
CN203778782U (en) * 2013-12-31 2014-08-20 广州市昊志机电股份有限公司 Motorized spindle for deep holes
CN204253645U (en) * 2014-11-12 2015-04-08 广州市昊志机电股份有限公司 The novel sealing structure of high-speed electric main shaft
CN204276918U (en) * 2014-11-24 2015-04-22 深圳市速锋科技有限公司 A kind of bearing locking device of high-speed electric main shaft
CN204921470U (en) * 2015-08-26 2015-12-30 哈尔滨汽轮机厂有限责任公司 Axial fan drum rotor
CN105965037A (en) * 2016-04-29 2016-09-28 宁波海天精工股份有限公司 Four-surface dynamic balance realizing method of high-speed main shaft
CN207131738U (en) * 2017-06-22 2018-03-23 广州市昊志机电股份有限公司 A kind of bearing locking component

Patent Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN201270444Y (en) * 2008-08-29 2009-07-08 刘森钢 Self-blowing apparatus of high speed electric main shaft having reversed thread
CN203035711U (en) * 2012-12-29 2013-07-03 广州市昊志机电股份有限公司 Locknut retaining structure for high-speed ball electric spindle bearing
CN103203691A (en) * 2013-03-14 2013-07-17 南京航空航天大学 Thickness changeable structure grinding wheel for super-high-speed grinding
CN203711870U (en) * 2013-12-31 2014-07-16 广州市昊志机电股份有限公司 Dynamic balance adjustment mechanism of machine tool direct connection main shaft
CN203778782U (en) * 2013-12-31 2014-08-20 广州市昊志机电股份有限公司 Motorized spindle for deep holes
CN204253645U (en) * 2014-11-12 2015-04-08 广州市昊志机电股份有限公司 The novel sealing structure of high-speed electric main shaft
CN204276918U (en) * 2014-11-24 2015-04-22 深圳市速锋科技有限公司 A kind of bearing locking device of high-speed electric main shaft
CN204921470U (en) * 2015-08-26 2015-12-30 哈尔滨汽轮机厂有限责任公司 Axial fan drum rotor
CN105965037A (en) * 2016-04-29 2016-09-28 宁波海天精工股份有限公司 Four-surface dynamic balance realizing method of high-speed main shaft
CN207131738U (en) * 2017-06-22 2018-03-23 广州市昊志机电股份有限公司 A kind of bearing locking component

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109357872A (en) * 2018-11-30 2019-02-19 瓦房店轴承集团国家轴承工程技术研究中心有限公司 Improved bear vibration detection machine pressing device
CN109357872B (en) * 2018-11-30 2024-03-15 瓦房店轴承集团国家轴承工程技术研究中心有限公司 Improved pressing device of bearing vibration detector
CN110500362A (en) * 2019-07-23 2019-11-26 福州三金机动车配件有限公司 A kind of motor vehicle switch bearing rod
CN110500362B (en) * 2019-07-23 2021-09-24 福州三金机动车配件有限公司 Motor vehicle switch bearing rod
CN113231657A (en) * 2021-04-19 2021-08-10 广州市昊志机电股份有限公司 Main shaft bearing locking structure, electric main shaft and machine tool

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Application publication date: 20171010

RJ01 Rejection of invention patent application after publication