CN101625016A - Gapless rotary pair - Google Patents
Gapless rotary pair Download PDFInfo
- Publication number
- CN101625016A CN101625016A CN200910091289A CN200910091289A CN101625016A CN 101625016 A CN101625016 A CN 101625016A CN 200910091289 A CN200910091289 A CN 200910091289A CN 200910091289 A CN200910091289 A CN 200910091289A CN 101625016 A CN101625016 A CN 101625016A
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- ball
- end cap
- bearing
- axle
- hole
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Abstract
The invention relates to a gapless rotary pair which comprises a rotary shaft, ball bearings without internal sleeves, end covers and bearing seats, wherein the rotary shaft is formed by integrally connecting a thick shaft at the middle part and thin shafts at both sides; the transition parts of the thick shaft at the middle part and the thin shafts at both sides are respectively provided with a annular conical ball raceway; the two ball raceways are respectively sleeved with the ball bearings without the internal sleeves, so that the ball raceways are matched with the balls of the ball bearings without the internal sleeves; the end covers are arranged at the outer end in the axial direction of each ball bearing without the internal sleeves, and the end covers are sleeved on the thin shafts; seat holes of the ball bearings without the internal sleeves and seat holes of the end covers are arranged in the bearing seats; and the seat holes of the ball bearings without the internal sleeves are communicated with the seat holes of the end covers to form stepped holes. The gapless rotary pair has the advantages of high rotary precision, high rigidity, compact structure, convenient installation and disassembly and easy maintenance of equipment and instruments, and can be widely used in the precise operation fields, such as micro-mechanical assembly, optical micro-adjustment, biologic micro-operation, microscopic medical treatment, ultraprecision machining and the like.
Description
Technical field
The present invention relates to be used for the rotary pair on high precision instrument, the equipment, is a kind of gapless rotary pair.
Background technique
At present, precise operation is day by day towards nanoscale development, and the precision of precision equipment has been proposed requirements at the higher level, especially eager the demand working stroke is big, Location accuracy is high instrument, equipment.The moving platform Location accuracy of China's tens millimetres of movement strokes can only reach micron order (tens microns to several microns), and its main cause is the raising that pair clearance has influenced system accuracy in the mechanism.
Summary of the invention
The purpose of this invention is to provide a kind of gapless rotary pair, its running accuracy height, high rigidity and compact structure can be widely used in precise operation fields such as micromechanics assembling, optics inching, biological micromanipulator, micro-medical treatment and ultraprecise processing.
To achieve these goals, the present invention is by the following technical solutions:
To make instrument, defective that equipment precision is low owing to the rotary pair kinematic accuracy is low in order overcoming, to the invention provides a kind of gapless rotary pair, it includes turning axle, do not have in cover ball bearing, end cap, bearing support; Described turning axle is to be connected and composed by thick of middle part and the thin axle one of both sides, thick transition position with the thin axle of both sides at the middle part is respectively equipped with ring taper ball road, cover ball bearing in socket has or not respectively on these two ball road, the ball of cover ball bearing cooperates in making ball road and not having, the axial outer end of cover ball bearing is not provided with end cap in having, and this end cap is enclosed within on the thin axle; Be provided with in the described bearing support do not have in cover ball-bearing housing hole and end cap seat hole, cover ball-bearing housing hole and the end cap seat hole formation shoulder hole that communicates overlaps the diameter of the diameter in ball-bearing housing hole less than end cap seat hole in this nothings in this does not have; In the cover ball-bearing housing hole, the outer round surface of described end cap was provided with outside thread in the cover ball bearing was arranged on and does not have in the described nothing, and described end cap seat hole is provided with internal thread, and the outside thread of this end cap is connected with the screw-internal thread fit in end cap seat hole.
Described thick axle is formed with taper shape with the transition position of the thin axle of both sides, and this conical cone angle is 60 °.
During use, by screwing end cap, the matching gap of cover ball bearing improves its structural rigidity in can adjusting turning axle and not having, thereby improves the running accuracy of rotary pair of the present invention.Unscrew and unload lower end cap, just can unload easily and not have interior cover ball bearing, and then lay down turning axle.Use gapless rotary pair of the present invention, the kinematic accuracy of rotary system is greatly improved, the installation and removal of gapless rotary pair of the present invention simultaneously are all very convenient, are easy to equipment, instrument maintenance.
Advantage of the present invention is: running accuracy height, high rigidity and compact structure, mount and dismount all very convenient, be easy to equipment, instrument maintenance, can be widely used in precise operation fields such as micromechanics assembling, optics inching, biological micromanipulator, micro-medical treatment and ultraprecise processing.
Description of drawings
Fig. 1 is a structural representation of the present invention;
Fig. 2 is the structural representation of Fig. 1 turning axle.
Embodiment
Referring to Fig. 1, shown in Figure 2: a kind of gapless rotary pair, it includes turning axle 1, do not have in cover ball bearing 4, end cap 2, bearing support 3; Described turning axle 1 is to be connected and composed by thick 12 of middle part and thin axle 11 one of both sides, be respectively equipped with ring taper ball road 13 at the thick axle 12 at middle part and thin 11 transition position of both sides, cover ball bearing 4 in socket has or not respectively on these two ball road 13, the ball 5 of cover ball bearing 4 cooperates in making ball road 13 and not having, the axial outer end of cover ball bearing 4 is not provided with end cap 2 in having, and this end cap 2 is enclosed within on the thin axle 11; Be provided with in the described bearing support 3 do not have in cover ball-bearing housing hole 31 and end cap seat hole 32, cover ball-bearing housing hole 31 and the end cap seat hole 32 formation shoulder hole that communicates overlaps the diameter of the diameter in ball-bearing housing hole 31 less than end cap seat hole 32 in this nothings in this does not have; Overlap in the ball-bearing housing hole 31 in cover ball bearing 4 is arranged on and does not have in the described nothing, the outer round surface of described end cap 2 is provided with outside thread, described end cap seat hole 32 is provided with internal thread, and the outside thread of this end cap 2 is threaded with the screw-internal thread fit in end cap seat hole 32.
When thick axle 12 was thick, described thick axle was formed with taper shape 14 with the transition position of the thin axle 11 of both sides, and the cone angle of this taper shape 14 is 60 °.
During use, by screwing end cap 2, the matching gap of cover ball bearing 4 improves its structural rigidity in can adjusting turning axle 1 and not having, thereby improves the running accuracy of rotary pair of the present invention.Unscrew and unload lower end cap 2, just can unload easily and not have interior cover ball bearing 4, and then lay down turning axle 1.Use gapless rotary pair of the present invention, the kinematic accuracy of rotary system is greatly improved, the installation and removal of gapless rotary pair of the present invention simultaneously are all very convenient, are easy to equipment, instrument maintenance.
Claims (2)
1, a kind of gapless rotary pair is characterized in that, it includes turning axle, does not have interior cover ball bearing, end cap, bearing support; Described turning axle is to be connected and composed by thick of middle part and the thin axle one of both sides, thick transition position with the thin axle of both sides at the middle part is respectively equipped with ring taper ball road, cover ball bearing in socket has or not respectively on these two ball road, the ball of cover ball bearing cooperates in making ball road and not having, the axial outer end of cover ball bearing is not provided with end cap in having, and this end cap is enclosed within on the thin axle; Be provided with in the described bearing support do not have in cover ball-bearing housing hole and end cap seat hole, cover ball-bearing housing hole and the end cap seat hole formation shoulder hole that communicates overlaps the diameter of the diameter in ball-bearing housing hole less than end cap seat hole in this nothings in this does not have; In the cover ball-bearing housing hole, the outer round surface of described end cap was provided with outside thread in the cover ball bearing was arranged on and does not have in the described nothing, and described end cap seat hole is provided with internal thread, and the outside thread of this end cap is connected with the screw-internal thread fit in end cap seat hole.
2, gapless rotary pair according to claim 1 is characterized in that, described thick axle is formed with taper shape with the transition position of the thin axle of both sides, and this conical cone angle is 60 °.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910091289A CN101625016A (en) | 2009-08-18 | 2009-08-18 | Gapless rotary pair |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910091289A CN101625016A (en) | 2009-08-18 | 2009-08-18 | Gapless rotary pair |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101625016A true CN101625016A (en) | 2010-01-13 |
Family
ID=41520961
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200910091289A Pending CN101625016A (en) | 2009-08-18 | 2009-08-18 | Gapless rotary pair |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101625016A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106640988A (en) * | 2017-01-09 | 2017-05-10 | 南宁市安和机械设备有限公司 | Abraded bearing accuracy-adjustable transmission device and using method thereof |
| CN107014532A (en) * | 2017-05-17 | 2017-08-04 | 山东建筑大学 | A kind of theoretical zero error dynamometer machine |
| CN109029326A (en) * | 2018-10-11 | 2018-12-18 | 唐哲敏 | A kind of installation gap quick calculation method of two sections of axis |
| CN109883375A (en) * | 2019-04-07 | 2019-06-14 | 柳州鹿寨县唐秦泰测量技术有限公司 | The installability Accurate Assessment method of two hole of one kind based on equally accurate principle |
-
2009
- 2009-08-18 CN CN200910091289A patent/CN101625016A/en active Pending
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106640988A (en) * | 2017-01-09 | 2017-05-10 | 南宁市安和机械设备有限公司 | Abraded bearing accuracy-adjustable transmission device and using method thereof |
| CN106640988B (en) * | 2017-01-09 | 2019-04-30 | 南宁市安和机械设备有限公司 | Run out bearing adjustable accuracy transmission device and its application method |
| CN107014532A (en) * | 2017-05-17 | 2017-08-04 | 山东建筑大学 | A kind of theoretical zero error dynamometer machine |
| CN107014532B (en) * | 2017-05-17 | 2019-07-12 | 山东建筑大学 | A kind of theory zero error dynamometer machine |
| CN109029326A (en) * | 2018-10-11 | 2018-12-18 | 唐哲敏 | A kind of installation gap quick calculation method of two sections of axis |
| CN109029326B (en) * | 2018-10-11 | 2020-06-23 | 合肥源康信息科技有限公司 | Method for rapidly calculating installation clearance of two sections of shafts |
| CN109883375A (en) * | 2019-04-07 | 2019-06-14 | 柳州鹿寨县唐秦泰测量技术有限公司 | The installability Accurate Assessment method of two hole of one kind based on equally accurate principle |
| CN109883375B (en) * | 2019-04-07 | 2020-08-25 | 柳州鹿寨县唐秦泰测量技术有限公司 | Accurate installability evaluation method of two-section hole based on equal-precision principle |
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Legal Events
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Open date: 20100113 |