CN101265943B - Thrust ball bearing for machine tool main shaft - Google Patents

Thrust ball bearing for machine tool main shaft Download PDF

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Publication number
CN101265943B
CN101265943B CN2008100112590A CN200810011259A CN101265943B CN 101265943 B CN101265943 B CN 101265943B CN 2008100112590 A CN2008100112590 A CN 2008100112590A CN 200810011259 A CN200810011259 A CN 200810011259A CN 101265943 B CN101265943 B CN 101265943B
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CN
China
Prior art keywords
bearing
main shaft
machine tool
thrust ball
spindle
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.)
Expired - Fee Related
Application number
CN2008100112590A
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Chinese (zh)
Other versions
CN101265943A (en
Inventor
张福有
赵文爽
刘本胜
车世红
周秀宽
王洪军
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.)
DALIAN KAITELE MACHINERY Co Ltd
Original Assignee
DALIAN KAITELE MACHINERY 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 DALIAN KAITELE MACHINERY Co Ltd filed Critical DALIAN KAITELE MACHINERY Co Ltd
Priority to CN2008100112590A priority Critical patent/CN101265943B/en
Publication of CN101265943A publication Critical patent/CN101265943A/en
Application granted granted Critical
Publication of CN101265943B publication Critical patent/CN101265943B/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • 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
    • F16C19/00—Bearings with rolling contact, for exclusively rotary movement
    • F16C19/02—Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows
    • F16C19/10—Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows for axial load mainly

Abstract

The invention relates to a thrust sphere bearing used in a machine tool spindle, which mainly comprises a spindle (1), a bearing shaft washer (2), a steel ball module (3), a bearing race (4), and a machine tool case (5); the bearing is characterized in that a clearance between an internal diameter d2 of the bearing race (4) and a diameter d1 of the spindle (1) is 0.4-0.6mm, with the optimal length of 0.5mm. The bearing has the beneficial effect that concentricity can be kept for two collars of the bearing in the process of assembling the spindle, thus prolonging the service life of the spindle bearing.

Description

Thrust ball bearing for machine tool main shaft
Technical field
The invention belongs to bearing products development technique field, relate to a kind of thrust ball bearing that improves the machine tool chief axis life-span.
Background technique
At present, the contour structure size of the thrust ball bearing used of domestic machine tool chief axis is a boundary dimension of selecting bearing according to NBS " GB/T301 rolling bearing thrust ball bearing boundary dimension ".If such structural type is used under the situation of the non-cooperation of horizontal main axis and outer ring, then in the spindle mounted process, owing to there is very big gap (ordinary circumstance has several millimeters gaps) between seat ring internal diameter and the main shaft, seat ring freely hangs down into main spindle's under action of gravity, the raceway decentraction that can cause seat ring and blowout patche, cause the unbalance loading of bearing, reduced the working life of bearing.
Summary of the invention
The purpose of this invention is to provide a kind of thrust ball bearing for machine tool main shaft, can make bearing in assembly process, the sag of chain of bearing race is controlled at minimum, and two lassos of bearing keep with one heart, and then prolong the working life of main shaft bearing.
In order to achieve the above object, technological scheme of the present invention is as follows:
A kind of thrust ball bearing for machine tool main shaft mainly is made up of main shaft, bearing blowout patche, steel ball component, bearing race and lathe casing, and the inner diameter d 2 and the gap between the main shaft diameter d 1 of bearing race are 0.4～0.6 millimeter, and the best is 0.5 millimeter.
The invention has the beneficial effects as follows: two lassos of bearing are kept in the assembly process of main shaft with one heart, prolonged the working life of main shaft bearing.
Description of drawings
Fig. 1 is a structural representation of the present invention.
Among the figure: 1. main shaft, 2. bearing blowout patche, 3. steel ball component, 4. bearing race, 5. lathe casing.
Embodiment
Below in conjunction with the drawings and specific embodiments the present invention is described below in detail:
As shown in Figure 1, a kind of thrust ball bearing for machine tool main shaft of the present invention, mainly form by main shaft 1, bearing blowout patche 2, steel ball component 3, bearing race 4 and lathe casing 5, thrust ball bearing is under the immovable situation of the structure of lathe integral body, the difference of the inner diameter d 2 of thrust ball race 4 and the diameter d 1 of main shaft 1 is adjusted into 0.5 millimeter, bearing race 4 is abutted against on the lathe casing 5, steel ball component 3 is close to bearing race 4, to be close to steel ball component 3 after main shaft 1 and bearing blowout patche 2 interference fit, can carry out work after bearing is applied axial preload.Utilize bearing structure of the present invention, can guarantee that in the process of running in bearings main shaft diameter d 1 does not interfere with the inner diameter d 2 of bearing race 4 when rotated, can guarantee the concentricity of bearing race 4 and bearing blowout patche 2 again, thus reduced widely main shaft bearing in installation process because the nonconcentricity of the blowout patche 2 that the lasso deadweight causes and seat ring 4.

Claims (2)

1. thrust ball bearing for machine tool main shaft, mainly form by main shaft (1), bearing blowout patche (2), steel ball component (3), bearing race (4) and lathe casing (5), it is characterized in that the difference between the diameter d 1 of the inner diameter d 2 of bearing race (4) and main shaft (1) is 0.4～0.6 millimeter.
2. thrust ball bearing for machine tool main shaft as claimed in claim 1 is characterized in that, described difference is 0.5 millimeter.
CN2008100112590A 2008-04-30 2008-04-30 Thrust ball bearing for machine tool main shaft Expired - Fee Related CN101265943B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2008100112590A CN101265943B (en) 2008-04-30 2008-04-30 Thrust ball bearing for machine tool main shaft

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN2008100112590A CN101265943B (en) 2008-04-30 2008-04-30 Thrust ball bearing for machine tool main shaft

Publications (2)

Publication Number Publication Date
CN101265943A CN101265943A (en) 2008-09-17
CN101265943B true CN101265943B (en) 2010-06-16

Family

ID=39988554

Family Applications (1)

Application Number Title Priority Date Filing Date
CN2008100112590A Expired - Fee Related CN101265943B (en) 2008-04-30 2008-04-30 Thrust ball bearing for machine tool main shaft

Country Status (1)

Country Link
CN (1) CN101265943B (en)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4523863A (en) * 1982-10-25 1985-06-18 Nippon Seiko Kabushiki Kaisha Thrust ball bearing
CN2718313Y (en) * 2004-06-23 2005-08-17 洛阳轴研科技股份有限公司 Bidirectional thrust tapered roller bearing
CN1865723A (en) * 2006-06-06 2006-11-22 加西贝拉压缩机有限公司 Diameter-variable plane thrust ball bearing
CN201010441Y (en) * 2007-01-06 2008-01-23 聂新成 Steel wire force removing device for crane

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4523863A (en) * 1982-10-25 1985-06-18 Nippon Seiko Kabushiki Kaisha Thrust ball bearing
CN2718313Y (en) * 2004-06-23 2005-08-17 洛阳轴研科技股份有限公司 Bidirectional thrust tapered roller bearing
CN1865723A (en) * 2006-06-06 2006-11-22 加西贝拉压缩机有限公司 Diameter-variable plane thrust ball bearing
CN201010441Y (en) * 2007-01-06 2008-01-23 聂新成 Steel wire force removing device for crane

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
JP特开2007-224996A 2007.09.06

Also Published As

Publication number Publication date
CN101265943A (en) 2008-09-17

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C06 Publication
PB01 Publication
C10 Entry into substantive examination
SE01 Entry into force of request for substantive examination
C14 Grant of patent or utility model
GR01 Patent grant
C17 Cessation of patent right
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20100616

Termination date: 20140430