CN102748398A - Combined bearing clearance accurate adjustment nut for eliminating run-out errors - Google Patents

Combined bearing clearance accurate adjustment nut for eliminating run-out errors Download PDF

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Publication number
CN102748398A
CN102748398A CN201210252766XA CN201210252766A CN102748398A CN 102748398 A CN102748398 A CN 102748398A CN 201210252766X A CN201210252766X A CN 201210252766XA CN 201210252766 A CN201210252766 A CN 201210252766A CN 102748398 A CN102748398 A CN 102748398A
Authority
CN
China
Prior art keywords
nut
accurate adjustment
combined bearing
adjustment nut
bearing clearance
Prior art date
Application number
CN201210252766XA
Other languages
Chinese (zh)
Inventor
曹泽洪
Original Assignee
曹泽洪
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 曹泽洪 filed Critical 曹泽洪
Priority to CN201210252766XA priority Critical patent/CN102748398A/en
Publication of CN102748398A publication Critical patent/CN102748398A/en

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Abstract

The invention discloses a combined bearing clearance accurate adjustment nut for eliminating run-out errors. The combined bearing clearance accurate adjustment nut is mounted on a shaft end thread for compressing a bearing, a shaft and the combined bearing clearance accurate adjustment nut are in threaded connection, the combined bearing clearance accurate adjustment nut at least comprises a mother nut (4), a compression nut (3), connecting screws (7) and a plurality of evenly distributed adjusting screws (5), the combined bearing clearance accurate adjustment nut is mounted on the shaft in a threaded manner, the mother nut (4) and the compression nut (3) are connected together by the aid of the countersunk head screws (7), and a step is arranged on the end face of the compression nut (3) and contacts with a bearing locating ring to compress the bearing locating ring. Bearing clearance is accurately adjusted by means of accurately adjusting the screw-in depth of the evenly distributed adjusting screws (5) during assembly so that the run-out errors of the shaft are eliminated, operation accuracy of equipment is effectively guaranteed, and the combined bearing clearance accurate adjustment nut for eliminating the run-out errors is simple in structure, convenient to operate, low in cost and high in accuracy.

Description

Eliminate the combined bearing gap accurate adjustment nut of runout error
Affiliated technical field
The present invention relates to a kind of bearing play accurate adjustment nut, specially refer to a kind of combined bearing gap accurate adjustment nut of eliminating runout error.
Background technique
At present; The adjustment general round nut that uses in the gap of domestic machinery Middle shaft assembly positioning bearing when occurring the bearing pre-tightened gap in the assembly process when inhomogeneous, can cause the straightness error of shaft assembly axis and the coaxiality error of shaft assembly and bearing support; Cause beating of axle after the assembling; Influence the running accuracy of equipment, the round nut that tradition is used can only whole adjustment axial position compressing bearing, and be difficult to repair the runout error of transferring axle.
Summary of the invention
[0003] in order to solve the problems of the technologies described above; The invention provides a kind of simple in structure; The combined bearing gap accurate adjustment nut of easy to operate elimination runout error, it mainly comprises mother nut, gland nut, attachment screw, circumferential equally distributed some adjusting screw.
For reaching above purpose; The present invention has adopted following technological scheme: a kind of combined bearing gap accurate adjustment nut of eliminating runout error is installed on the axle head screw thread; Compress the bearing positioning ring, the axle with this combined bearing gap accurate adjustment nut through being threaded, mother nut and gland nut fit together through attachment screw; The outside end face of gland nut is provided with step, and mother nut is provided with equally distributed adjusting screw.
The step of gland nut according to the invention outside end face contacts with the positioning ring of bearing; The end face step of gland nut is provided with according to the position of bearing positioning ring; The end face step of gland nut just was located at side inner ring position, hole when bearing was the inner ring location, and the end face step just was located at the position, outer ring when bearing was the location, outer ring.
After combined bearing according to the invention gap accurate adjustment nut compressed the bearing positioning ring, the screw-in depth of regulating 4 equally distributed Cock screws was respectively adjusted the working state of gland nut, thereby accurately adjusted the gap of bearing, effectively eliminated the runout error of axle.
After adopting above technological scheme, the present invention has simple in structure, and is easy and simple to handle, low cost and other advantages.
Below in conjunction with accompanying drawing the present invention is further described.
Description of drawings
Fig. 1 is a sectional arrangement drawing of the present invention.
Fig. 2 is a structural representation of the present invention.
Fig. 3 is the sectional view of the present invention's gland nut when bearing is the inner ring location.
Fig. 4 is the sectional view of the present invention's gland nut when bearing is the location, outer ring.
Fig. 5 is the left view of gland nut among Fig. 4 and Fig. 3.
Fig. 6 is the structural representation of mother nut of the present invention.
Embodiment
According to shown in Figure 1; A kind of combined bearing gap accurate adjustment nut of eliminating runout error of the present invention; Mainly comprise mother nut 4, gland nut 3, circumferential 5,2 countersunk head screws 7 of equally distributed 4 Cock screws, mother nut 4 fits together through 2 countersunk head screws 7 with gland nut 3, and the outside end face of gland nut 3 is provided with step; Mother nut 4 is provided with equally distributed 4 adjusting screw 5; This combined bearing gap accurate adjustment nut is installed on the axle head screw thread, compresses the bearing positioning ring, the axle with this combined bearing gap accurate adjustment nut through being threaded.
The step of gland nut 3 outside end faces according to the invention contacts with the bearing positioning ring.
According to Fig. 2, Fig. 3, Fig. 4, shown in Figure 5, gland nut 3 end faces of the present invention are provided with step, and the position of step is provided with according to the position of bearing positioning ring, can be that side position also can be side position in the outer ring in the hole.
According to shown in Figure 6; Mother nut 4 of the present invention is provided with mounting hole and 2 auxiliary holes of the mounting hole of 2 countersunk head screws 7,4 Cock screws; Be tightened onto on the axle head screw thread through the integral body of 2 auxiliary holes the combined bearing of the present invention gap accurate adjustment nut that assembles; After compressing bearing 8 and 9, regulate the working state that the circumferential screw-in depth of equally distributed 4 Cock screws 5 is come accurate adjustment gland nut 3 more respectively, with the gap of accurate adjustment bearing 8 and 9.

Claims (3)

1. combined bearing gap accurate adjustment nut of eliminating runout error; Mainly comprise mother nut (4), gland nut (3), circumferential equally distributed some adjusting screw (5), attachment screw (7); It is characterized in that this combined bearing gap accurate adjustment nut is installed on the axle head screw thread; Compress bearing, the axle with this combined bearing gap accurate adjustment nut through being threaded, mother nut (4) and gland nut (3) fit together through attachment screw (7); The outside end face of gland nut (3) is provided with step, and mother nut (4) is provided with equally distributed adjusting screw (5).
2. a kind of combined bearing gap accurate adjustment nut of eliminating runout error according to claim 1 is characterized in that the step surface in said gland nut (3) outside contacts with the bearing positioning ring.
3. according to claim 1 and 2 described a kind of combined bearing gap accurate adjustment nuts of eliminating runout error, it is characterized in that said gland nut (3) step surface is arranged near hole side position or outer ring side position.
CN201210252766XA 2012-07-20 2012-07-20 Combined bearing clearance accurate adjustment nut for eliminating run-out errors CN102748398A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201210252766XA CN102748398A (en) 2012-07-20 2012-07-20 Combined bearing clearance accurate adjustment nut for eliminating run-out errors

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201210252766XA CN102748398A (en) 2012-07-20 2012-07-20 Combined bearing clearance accurate adjustment nut for eliminating run-out errors

Publications (1)

Publication Number Publication Date
CN102748398A true CN102748398A (en) 2012-10-24

Family

ID=47028810

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201210252766XA CN102748398A (en) 2012-07-20 2012-07-20 Combined bearing clearance accurate adjustment nut for eliminating run-out errors

Country Status (1)

Country Link
CN (1) CN102748398A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103438105A (en) * 2013-08-29 2013-12-11 南车株洲电力机车研究所有限公司 Axial bearing positioning and locking nut, and storage and installation method
CN105003553A (en) * 2015-08-01 2015-10-28 烟台力凯电子科技有限公司 Transmission shaft bearing compressing device of multi-wire sawing machine

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB510144A (en) * 1939-03-01 1939-07-27 Churchill Machine Tool Co Ltd Improvements relating to locking nuts
GB578833A (en) * 1944-06-20 1946-07-12 Bechler Andre Device for play adjustment in a machine bearing
JPH0124422Y2 (en) * 1983-03-09 1989-07-25
DE4223256A1 (en) * 1992-07-15 1994-01-20 Schaeffler Waelzlager Kg Vibration-damping roller-bearing adjuster esp for machine tool spindle - attenuates radial and axial vibrations by compression of liq., pref. electro-rheological liq., in gap between sawtooth projections and grooves around nut
CN202082296U (en) * 2011-05-25 2011-12-21 江苏齐航数控机床有限责任公司 Combined bearing clearance adjustment structure
CN202746417U (en) * 2012-07-20 2013-02-20 曹泽洪 Combined type bearing gap fine-adjusting nut with function of run-out error elimination

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB510144A (en) * 1939-03-01 1939-07-27 Churchill Machine Tool Co Ltd Improvements relating to locking nuts
GB578833A (en) * 1944-06-20 1946-07-12 Bechler Andre Device for play adjustment in a machine bearing
JPH0124422Y2 (en) * 1983-03-09 1989-07-25
DE4223256A1 (en) * 1992-07-15 1994-01-20 Schaeffler Waelzlager Kg Vibration-damping roller-bearing adjuster esp for machine tool spindle - attenuates radial and axial vibrations by compression of liq., pref. electro-rheological liq., in gap between sawtooth projections and grooves around nut
CN202082296U (en) * 2011-05-25 2011-12-21 江苏齐航数控机床有限责任公司 Combined bearing clearance adjustment structure
CN202746417U (en) * 2012-07-20 2013-02-20 曹泽洪 Combined type bearing gap fine-adjusting nut with function of run-out error elimination

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103438105A (en) * 2013-08-29 2013-12-11 南车株洲电力机车研究所有限公司 Axial bearing positioning and locking nut, and storage and installation method
CN103438105B (en) * 2013-08-29 2016-04-13 南车株洲电力机车研究所有限公司 Bearing shaft to positioning and locking nut, and accumulating, installation method
CN105003553A (en) * 2015-08-01 2015-10-28 烟台力凯电子科技有限公司 Transmission shaft bearing compressing device of multi-wire sawing machine

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WD01 Invention patent application deemed withdrawn after publication

Application publication date: 20121024

C02 Deemed withdrawal of patent application after publication (patent law 2001)