CN202082296U - Combined bearing clearance adjustment structure - Google Patents

Combined bearing clearance adjustment structure Download PDF

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Publication number
CN202082296U
CN202082296U CN2011201688576U CN201120168857U CN202082296U CN 202082296 U CN202082296 U CN 202082296U CN 2011201688576 U CN2011201688576 U CN 2011201688576U CN 201120168857 U CN201120168857 U CN 201120168857U CN 202082296 U CN202082296 U CN 202082296U
Authority
CN
China
Prior art keywords
spacer
bearing
thrust ball
nut
adjustment
Prior art date
Application number
CN2011201688576U
Other languages
Chinese (zh)
Inventor
尹青
鲁美成
杨志敏
丁毅翎
文斌
Original Assignee
江苏齐航数控机床有限责任公司
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 江苏齐航数控机床有限责任公司 filed Critical 江苏齐航数控机床有限责任公司
Priority to CN2011201688576U priority Critical patent/CN202082296U/en
Application granted granted Critical
Publication of CN202082296U publication Critical patent/CN202082296U/en

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Abstract

The utility model provides a combined bearing clearance adjustment structure which comprises shaft adjustment nuts, spacer bush adjustment nuts, first thrust ball bearings, first spacer bushes, second thrust ball bearings, coupling spacer bushes, second spacer bushes, double-row cylindrical roller bearings, flange covers and nuts, wherein the shaft adjustment nuts, the coupling spacer bushes, the double-row cylindrical roller bearings and the nuts are sequentially arranged on a shaft from left to right, and the spacer adjustment nuts, the first thrust ball bearings, the first spacer bushes, the second thrust ball bearings, the second spacer bushes and the flange covers are sequentially arranged on the coupling spacer bushes from left to right. By adopting the combined bearing clearance adjustment structure, a combined bearing can respectively adjust the bearing pretightening force and the clearance of different bearings according to needs, and the pretightening force needed by each bearing can be met.

Description

The combination bearing gap adjusting structure

Technical field

The utility model relates to part, parts or the annex of lathe, is meant a kind of combination bearing gap adjusting structure that needs different pretightening forces between the combination bearing middle (center) bearing especially.

Background technique

The existing machinery transmission the structure of bearing as driving component arranged, particularly in the drive mechanism of combination bearing, the mode of single adjustment pretightening force is just adopted in the adjustment of bearing pre-tightened, and when each bearing needs different pretightening forces in combination bearing, prior art can not satisfy the different pretightening force requirements of bearing, thereby can't improve the operating accuracy and the working life of mechanism.

Summary of the invention

The problem of technical problem to be solved in the utility model with regard to being can only adopt single adjustment pretightening force mode to exist at existing combination bearing provides a kind of employing that the inhomogeneity bearing is installed in respectively on axle and the shaft coupling spacer and adjusts the combination bearing gap adjusting structure that nut carries out pretightening force adjustment structure by axial adjustment nut and spacer respectively.

Combination bearing gap adjusting structure of the present utility model is adjusted nut, first thrust ball bearing, first spacer, second thrust ball bearing, shaft coupling spacer, second spacer, Biserial cylindrical roller bearing, blind flange and nut by axial adjustment nut, spacer and is formed, axial adjustment nut, shaft coupling spacer, Biserial cylindrical roller bearing and nut are installed on the axle from left to right successively, and spacer is adjusted nut, first thrust ball bearing, first spacer, second thrust ball bearing, second spacer and blind flange and is installed in successively on the shaft coupling spacer from left to right.

Above-mentioned first thrust ball bearing and second thrust ball bearing belong to similar bearing and are installed on the shaft coupling spacer, are not installed on axle and Biserial cylindrical roller bearing and thrust ball bearing do not belong to similar bearing.Therefore, the rotation spacer is adjusted pretightening force and the gap that nut just can be adjusted first thrust ball bearing and second thrust ball bearing, running shaft is adjusted nut just can adjust the pretightening force of Biserial cylindrical roller bearing, adjusts the pretightening force of bearing and the purpose in gap respectively thereby reached.

Advantage of the present utility model just is to adjust the structure that nut carries out pretightening force and gap adjustment by axial adjustment nut and spacer respectively because employing is installed in the inhomogeneity bearing respectively on axle and the shaft coupling spacer, when two or more different types of bearings are used in combination, can adjust bearing pre-fastening and gap respectively to the inhomogeneity bearing as required.Thereby reach the required pretightening force of each bearing, not only save time but also laborsaving, and improved mechanically operated operating accuracy and working life.Thereby combination bearing gap adjusting structure of the present utility model has broad prospect for its application.

Description of drawings

Below in conjunction with accompanying drawing the utility model is described further;

Fig. 1 is that the structure master of the utility model combination bearing gap adjusting structure looks schematic representation.

With reference to accompanying drawing, as figure: 1, axial adjustment nut, 2, spacer adjusts nut, 3, first thrust ball bearing, 4, first spacer, 5, second thrust ball bearing, 6, the shaft coupling spacer, 7, second spacer, 8, Biserial cylindrical roller bearing, 9, blind flange, 10, nut.

Embodiment

Below be embodiment of the present utility model, the actual use of the present utility model is not limited to embodiment.

Embodiment 1, the combination bearing gap adjusting structure

Adopt the combination bearing gap adjusting structure of the utility model structure to be applied to the adjustment structure in combination bearing gap of the headstock spindle structure of the CW series heavy machine tool of two top maximum work mounting s weight more than 20 tons.

Consult accompanying drawing, the combination bearing gap adjusting structure of headstock that is arranged at CW series heavy machine tool is by axial adjustment nut 1, spacer is adjusted nut 2, first thrust ball bearing 3, first spacer 4, second thrust ball bearing 5, shaft coupling spacer 6, second spacer 7, Biserial cylindrical roller bearing 8, blind flange 9 and nut 10 are formed, axial adjustment nut 1, shaft coupling spacer 6, Biserial cylindrical roller bearing 8 and nut 10 are installed on the axle from left to right successively, and spacer is adjusted nut 2, first thrust ball bearing 3, first spacer 4, second thrust ball bearing 5, second spacer 7 and blind flange 9 are installed on the shaft coupling spacer 6 from left to right successively.

Above-mentioned first thrust ball bearing and second thrust ball bearing belong to similar bearing and are installed on the shaft coupling spacer 6, are not installed on axle and Biserial cylindrical roller bearing and thrust ball bearing do not belong to similar bearing.Therefore, the rotation spacer is adjusted pretightening force and the gap that nut just can be adjusted first thrust ball bearing and second thrust ball bearing, running shaft is adjusted nut just can adjust the pretightening force of Biserial cylindrical roller bearing, adjusts the pretightening force of bearing and the purpose in gap respectively thereby reached.

Owing to adopt the inhomogeneity bearing is installed in the structure of carrying out the pretightening force adjustment by axial adjustment nut and spacer adjustment nut respectively on axle and the shaft coupling spacer respectively, combination bearing can be adjusted bearing pre-fastening and gap respectively to the inhomogeneity bearing as required.Thereby reach the required pretightening force of each bearing, not only save time but also laborsaving, and improved mechanically operated operating accuracy and working life.

Using effect is good.

Claims (1)

1. combination bearing gap adjusting structure, it is characterized in that adjusting nut, first thrust ball bearing, first spacer, second thrust ball bearing, shaft coupling spacer, second spacer, Biserial cylindrical roller bearing, blind flange and nut by axial adjustment nut, spacer forms, axial adjustment nut, shaft coupling spacer, Biserial cylindrical roller bearing and nut are installed on the axle from left to right successively, and spacer is adjusted nut, first thrust ball bearing, first spacer, second thrust ball bearing, second spacer and blind flange and is installed in successively on the shaft coupling spacer from left to right.
CN2011201688576U 2011-05-25 2011-05-25 Combined bearing clearance adjustment structure CN202082296U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2011201688576U CN202082296U (en) 2011-05-25 2011-05-25 Combined bearing clearance adjustment structure

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN2011201688576U CN202082296U (en) 2011-05-25 2011-05-25 Combined bearing clearance adjustment structure

Publications (1)

Publication Number Publication Date
CN202082296U true CN202082296U (en) 2011-12-21

Family

ID=45342926

Family Applications (1)

Application Number Title Priority Date Filing Date
CN2011201688576U CN202082296U (en) 2011-05-25 2011-05-25 Combined bearing clearance adjustment structure

Country Status (1)

Country Link
CN (1) CN202082296U (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102748398A (en) * 2012-07-20 2012-10-24 曹泽洪 Combined bearing clearance accurate adjustment nut for eliminating run-out errors
CN103115075A (en) * 2013-03-05 2013-05-22 徐州科源液压股份有限公司 Integrated thrust bearing
CN105041861A (en) * 2015-08-25 2015-11-11 中机洛阳轴承科技有限公司 Cross cylindrical roller bearing with flange and check ring
CN106351956A (en) * 2016-08-26 2017-01-25 洛阳轴研科技股份有限公司 Roller bearing and mounting method thereof
WO2020134451A1 (en) * 2018-12-25 2020-07-02 珠海格力电器股份有限公司 Thrust bearing assembly, compressor, and refrigerant circulation system

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102748398A (en) * 2012-07-20 2012-10-24 曹泽洪 Combined bearing clearance accurate adjustment nut for eliminating run-out errors
CN103115075A (en) * 2013-03-05 2013-05-22 徐州科源液压股份有限公司 Integrated thrust bearing
CN103115075B (en) * 2013-03-05 2016-06-15 徐州科源液压股份有限公司 Integral type thrust block
CN105041861A (en) * 2015-08-25 2015-11-11 中机洛阳轴承科技有限公司 Cross cylindrical roller bearing with flange and check ring
CN106351956A (en) * 2016-08-26 2017-01-25 洛阳轴研科技股份有限公司 Roller bearing and mounting method thereof
WO2020134451A1 (en) * 2018-12-25 2020-07-02 珠海格力电器股份有限公司 Thrust bearing assembly, compressor, and refrigerant circulation system

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Date Code Title Description
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: 20111221

Termination date: 20140525