CN202701800U - Ball screw detachable double-nut supporting device - Google Patents
Ball screw detachable double-nut supporting device Download PDFInfo
- Publication number
- CN202701800U CN202701800U CN 201220265854 CN201220265854U CN202701800U CN 202701800 U CN202701800 U CN 202701800U CN 201220265854 CN201220265854 CN 201220265854 CN 201220265854 U CN201220265854 U CN 201220265854U CN 202701800 U CN202701800 U CN 202701800U
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- China
- Prior art keywords
- bearing
- screw
- cover
- housing
- ball screw
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- Expired - Lifetime
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Abstract
The utility model discloses a ball screw detachable double-nut supporting device. The ball screw detachable double-nut supporting device comprises a bearing bush which is arranged on a fixed supporting seat, and a ball screw which is arranged in the inner and outer lock nut jam sleeves, a pair of the screw bearings and a bearing inner ring spacer bush, wherein the pair of screw bearings, the bearing inner ring spacer bush and a bearing outer ring spacer bush are arranged in the bearing bush; an inner locking nut jam sleeve is arranged in the inner looper of the bearing bush; a bearing cap is arranged on the outer looper of the bearing bush; an outer lock nut jam sleeve is arranged in the bearing cap; and inner and outer ends of the ball screw are locked by inner and outer lock nuts respectively. According to the ball screw detachable double-nut supporting device, the assembly accuracy of the ball screw of a machine tool can be improved, so that the assembly is easier, and the influence of repeated detachment to the bearing block can be avoided. The ball screw detachable double-nut supporting device has the advantages of easy in manufacture, convenience in operation and maintenance.
Description
Technical field
The utility model relates to ball-screw supporting arrangement field, is specially the detachable double nut supporting arrangement of a kind of ball-screw.
Background technology
In the numerical control equipment manufacturing industry, the motion of workbench is that the installation of ball-screw generally is to design respectively motor bearing seat and afterbody supporting base at the ball-screw two ends by ball-screw-transmission, and the feed screw nut seat is fixed on the workbench.Two supporting bases of the installation requirement of ball-screw, nut seat must be coaxial, and the ball-screw axis must be parallel with the benchmark of linear rolling guide.Two supporting base structures commonly used are separately design processing, are installed on the lathe.Measure, adjust the required precision that afterbody supporting adjusting pad guarantees ball-screw during by assembling.The traditional structure of afterbody supporting is single nut locking screw structure, bearing directly is installed in the supporting base, supporting base is installed on the lathe, after leading screw is packed supporting base into, there is a step to head on bearing inner race on the leading screw, the outside is with a nut check, should guarantee axiality with the motor bearing seat by adjusting adjusting pad during assembling, measure again the benchmark depth of parallelism with linear rolling guide, to repeatedly dismantle supporting base adjustment, operate cumbersome, be difficult to reach requirement for high precision machine tool.After bearing wear, be easy to when changing bearing the dead eye of supporting base is produced wearing and tearing.Required precision after the impact maintenance.
The utility model content
The utility model purpose provides the detachable double nut supporting arrangement of a kind of ball-screw, to solve the problem of prior art ball-screw supporting arrangement assembly work complexity.
In order to achieve the above object, the technical scheme that adopts of the utility model is:
The detachable double nut supporting arrangement of a kind of ball-screw, include the bearing holder (housing, cover) that is installed on the lathe fixed mounting base, it is characterized in that: be provided with a pair of leading screw bearing in the described bearing holder (housing, cover), and separate in the bearing of two leading screw bearings, the outer ring spacer, inside lock jack panel and tight cover are installed in the inboard running-on of bearing holder (housing, cover), on the running-on of the bearing holder (housing, cover) outside bearing cap is installed, capping is close to one of them leading screw bearing in the described bearing cap, be provided with outside locking nut and tight cover in the bearing cap, also include be installed in, outside locking nut and tight cover, a pair of leading screw bearing, ball-screw in the bearing inner race spacer, the inner of described ball-screw is locked at the inside lock jack panel by the inside lock jack panel and tightly puts, and the outer end of ball-screw is locked at outside locking nut by outside locking nut and tightly puts.
The detachable double nut supporting arrangement of described a kind of ball-screw, it is characterized in that: described bearing holder (housing, cover) is installed on the fixed mounting base by the bearing holder (housing, cover) attachment screw, and bearing cap is installed on the running-on of the bearing holder (housing, cover) outside by the bearing cap attachment screw.
The utility model has improved the assembly precision of machine tool ball screw, so that assembling is easier, avoids repeatedly dismantling the impact on bearing block, has advantages of easy to manufacture, easy and simple to handle, easy to maintenance.
Description of drawings
Fig. 1 is structural representation of the present utility model.
The specific embodiment
As shown in Figure 1.The detachable double nut supporting arrangement of a kind of ball-screw, include the bearing holder (housing, cover) 1 that is installed on the lathe fixed mounting base 13, be provided with a pair of leading screw bearing 4 in the bearing holder (housing, cover) 1, and separate in the bearing of two leading screw bearings 4, outer ring spacer 5,6, inside lock jack panel and tight cover 2 are installed in the bearing holder (housing, cover) 1 inboard running-on, on bearing holder (housing, cover) 1 outside running-on bearing cap 8 is installed, bearing cap 8 interior cappings are close to one of them leading screw bearing, be provided with outside locking nut and tight cover 9 in the bearing cap 8, also include be installed in, outside locking nut and tight cover 2,9, a pair of leading screw bearing 4, ball-screw 12 in the bearing inner race spacer 5, the inner of ball-screw 12 is locked on inside lock jack panel and the tight cover 2 by inside lock jack panel 3, and the outer end of ball-screw 12 is locked on outside locking nut and the tight cover 9 by outside locking nut 10.
Bearing holder (housing, cover) 1 is installed on the fixed mounting base 13 by bearing holder (housing, cover) attachment screw 11, and bearing cap 8 is installed on bearing holder (housing, cover) 1 outside running-on by bearing cap attachment screw 7.
The utility model is installed in the supporting base hole, supporting base and lathe disjunctor.The benchmark installed surface of two supporting bases, linear rolling guide just is cast on the machine body when casting, add man-hour, the datum level of linear rolling guide, two supporting base holes process at a machine tool, according to existing process technology, can guarantee the axiality in two supporting base holes, also guarantee the datum level depth of parallelism of its line of centres and linear rolling guide simultaneously.Improved the precision of lathe assembling.
In the utility model, P4 level pairing lead screw shaft is housed in the bearing holder (housing, cover), by bearing inner race spacer, bearing outer ring spacer bearing is separated, and bearing cap is connected on the bearing holder (housing, cover) with 6 screws, and its inner side step face and bearing outer ring are close to.Bearing holder (housing, cover) is connected on the lathe afterbody fixed mounting base with 6 screws, and ball-screw is packed into behind the bearing holder (housing, cover), by regulating two locking nuts, just can at an easy rate bearing be adjusted to required pretension requirement.Bearing holder (housing, cover) handling ease, precision are easy to guarantee, and lathe afterbody fixed mounting base precision also can lean on machine tooling to guarantee.The assembly precision of whole ball-screw is guaranteed.When needs are dismantled, unload outside locking nut, unclamp the bearing holder (housing, cover) attachment screw, bearing holder (housing, cover) integral body is extracted out from fixed mounting base.Change bearing and in bearing holder (housing, cover), carry out, produce hardly wearing and tearing between bearing holder (housing, cover) and fixed mounting base.
Claims (2)
1. detachable double nut supporting arrangement of ball-screw, include the bearing holder (housing, cover) that is installed on the lathe fixed mounting base, it is characterized in that: be provided with a pair of leading screw bearing in the described bearing holder (housing, cover), and separate in the bearing of two leading screw bearings, the outer ring spacer, inside lock jack panel and tight cover are installed in the inboard running-on of bearing holder (housing, cover), on the running-on of the bearing holder (housing, cover) outside bearing cap is installed, capping is close to one of them leading screw bearing in the described bearing cap, be provided with outside locking nut and tight cover in the bearing cap, also include be installed in, outside locking nut and tight cover, a pair of leading screw bearing, ball-screw in the bearing inner race spacer, the inner of described ball-screw is locked at the inside lock jack panel by the inside lock jack panel and tightly puts, and the outer end of ball-screw is locked at outside locking nut by outside locking nut and tightly puts.
2. the detachable double nut supporting arrangement of a kind of ball-screw according to claim 1, it is characterized in that: described bearing holder (housing, cover) is installed on the fixed mounting base by the bearing holder (housing, cover) attachment screw, and bearing cap is installed on the running-on of the bearing holder (housing, cover) outside by the bearing cap attachment screw.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220265854 CN202701800U (en) | 2012-06-07 | 2012-06-07 | Ball screw detachable double-nut supporting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220265854 CN202701800U (en) | 2012-06-07 | 2012-06-07 | Ball screw detachable double-nut supporting device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202701800U true CN202701800U (en) | 2013-01-30 |
Family
ID=47582140
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220265854 Expired - Lifetime CN202701800U (en) | 2012-06-07 | 2012-06-07 | Ball screw detachable double-nut supporting device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202701800U (en) |
-
2012
- 2012-06-07 CN CN 201220265854 patent/CN202701800U/en not_active Expired - Lifetime
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130130 |
|
| CX01 | Expiry of patent term |