CN201815914U - Preloaded ball-screw assembly with dual nuts, insertion tubes and washer - Google Patents
Preloaded ball-screw assembly with dual nuts, insertion tubes and washer Download PDFInfo
- Publication number
- CN201815914U CN201815914U CN2010205145998U CN201020514599U CN201815914U CN 201815914 U CN201815914 U CN 201815914U CN 2010205145998 U CN2010205145998 U CN 2010205145998U CN 201020514599 U CN201020514599 U CN 201020514599U CN 201815914 U CN201815914 U CN 201815914U
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- nut
- screw
- lead screw
- raceway
- leading screw
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Abstract
The utility model relates to a preloaded ball-screw assembly with dual nuts, insertion tubes and a washer. The preloaded ball-screw assembly comprises a lead screw arranged horizontally, external threads are arranged on the outer circumference of the lead screw, a main nut and an auxiliary nut are sleeved on the lead screw and respectively arranged on the left and the right of the lead screw, the washer is arranged between the main nut and the auxiliary nut, the main nut, the auxiliary nut and the washer are fixedly connected through connecting keys, internal threads are arranged on the inner surfaces of the main nut and the auxiliary nut, the thread end of each internal thread corresponds to the thread end of one external thread, the internal threads and the external threads are combined to form a multi-turn raceway, dustproof rings are respectively arranged between the left end of the main nut and the lead screw and between the right end of the auxiliary nut and the lead screw, the outer surfaces of the main nut and the auxiliary nut are respectively connected with a press plate through screws, each two insertion tubes are disposed in each press plate, the end opening of each insertion tube leads to one turn of the raceway, and a plurality of steel balls arranged in a line are respectively arranged in the multi-turn raceway and each insertion tube. The preloaded ball-screw assembly has the advantages of simple structure, convenience in assembling and disassembling, reliable operation and fine rigidity.
Description
Technical field:
The utility model relates to a kind of lathe double nut intubate pad prefastening ball screw assembly.
Background technology:
Along with engineering goods at a high speed, efficient, automation direction development, numerical control machining center and electromechanical integration machinery etc., and feeding drives and constantly carries.Location, high-speed cutting, high-speed driving have proposed brand-new requirement to the rolling function parts fast, owing to linear electric motors cost an arm and a leg, and the control system complexity, the steel ball leading screw is still the selection of high-speed driving the best.The feed speed of steel ball lead screw pair is the product of leading screw rotating speed and leading screw helical pitch, therefore realizes that the high speed feed of steel ball leading screw has two kinds of methods: the one, improve the leading screw rotating speed, and the 2nd, increase the leading screw helical pitch.The common inner circulation structure of general at present employing, but this poor processability, easy fracture after nut quenches is firm inadequately after the assembling.
Summary of the invention:
The purpose of this utility model is in order to overcome above deficiency, to provide a kind of simple in structure, easy to loading and unloading, reliable operation, the double nut intubate pad prefastening ball screw assembly, of good rigidly.
The purpose of this utility model is achieved through the following technical solutions: a kind of double nut intubate pad prefastening ball screw assembly,, comprise a leading screw of laterally placing, the excircle of leading screw is provided with external screw thread, on leading screw, be with mother nut and secondary nut, place about mother nut and secondary nut, between mother nut and secondary nut, be provided with pad, mother nut, secondary nut is fixedlyed connected by connecting key with pad, be equipped with internal thread on the inner surface of mother nut and secondary nut, the respectively corresponding externally threaded screw thread mouth of the screw thread mouth of each internal thread, and both piece together the multi-turn raceway, between the left end and leading screw of mother nut, be equipped with dust ring between the right-hand member of secondary nut and the leading screw, the outer surface of mother nut and secondary nut all respectively is connected with a pressing plate by screw, be equipped with two intubate in each pressing plate, the port of each intubate one end all leads to a described raceway, in the multi-turn raceway, and be equipped with a plurality of steel balls that are arranged in a row setting in each intubate.
The utility model compared with prior art has the following advantages: not only simple in structure, it is comparatively convenient to load and unload, reliable operation, and good rigidly, and, make two nuts produce axial displacement by adjusting the thickness of pad, reaching the double nut pretension and to transfer the purpose in crack, and compact dimensions.
Description of drawings:
Fig. 1 is a structural representation of the present utility model;
Number in the figure: 1-leading screw, 2-external screw thread, 3-mother nut, the secondary nut of 4-, 5-pad, 6-inner nut, 7-dust ring, 8-screw, 9-pressing plate, 10-intubate, 11-steel ball, 12-connecting key.
The specific embodiment:
In order to deepen understanding of the present utility model, the utility model is described in further detail below in conjunction with embodiment and accompanying drawing, and this embodiment only is used to explain the utility model, does not constitute the qualification to the utility model protection domain.
Show a kind of specific embodiment of the utility model double nut intubate pad prefastening ball screw assembly, as Fig. 1, comprise a leading screw 1 of laterally placing, the excircle of leading screw 1 is provided with external screw thread 2, on leading screw 1, be with mother nut 3 and secondary nut 4, be equipped with oil filler point on mother nut 3 and the secondary nut 4, and mother nut 3 and secondary nut about 4 are placed, between mother nut 3 and secondary nut 4, be provided with pad 5, mother nut 3, secondary nut 4 is fixedlyed connected by connecting key 12 with pad 5, be equipped with internal thread 6 on the inner surface of mother nut 3 and secondary nut 4, the screw thread mouth of the respectively corresponding external screw thread 2 of the screw thread mouth of each internal thread 6, and both piece together the multi-turn raceway, between the left end of mother nut 3 and the leading screw 1, be equipped with dust ring 7 between the right-hand member of secondary nut 4 and the leading screw 1, the outer surface of mother nut 3 and secondary nut 4 all respectively is connected with a pressing plate 9 by screw 8, be equipped with two intubate 10 in each pressing plate 9, the port of each intubate 10 1 end all leads to a described raceway, in the multi-turn raceway, and be equipped with a plurality of steel balls 11 that are arranged in a row setting in each intubate 10, be that steel ball 11 enters raceway by intubate 10, between the helicla flute that leading screw 1 and nut screw, place an amount of steel ball like this as intermediate, by means of steel ball back passage, constitute steel ball 11 screw in the shuttling movement repeatedly in the closed-loop path, when leading screw 1 or nut rotation, steel ball 11 is pushed the shuttling movement repeatedly that forms ball chain in the closed-loop path, transmission efficiency height so not only, and net synchronization capability is good, the transmission accuracy height, long service life, between mother nut 3 and secondary nut 4, be provided with pad 5, by adjusting the thickness of pad 5, make two nuts produce axial displacement, to reach double nut pretension and the mother's who transfers the crack, this ball screw assembly, is not only simple in structure, it is comparatively convenient to load and unload, reliable operation, and good rigidly, size is comparatively compact.
Claims (1)
1. double nut intubate pad prefastening ball screw assembly,, comprise a leading screw (1) of laterally placing, the excircle of described leading screw (1) is provided with external screw thread (2), it is characterized in that: be with mother nut (3) and secondary nut (4) on the described leading screw (1), place about described mother nut (3) and described secondary nut (4), between described mother nut (3) and described secondary nut (4), be provided with pad (5), described mother nut (3), described secondary nut (4) is fixedlyed connected by connecting key (12) with described pad (5), be equipped with internal thread (6) on the inner surface of described mother nut (3) and described secondary nut (4), the screw thread mouth of the respectively corresponding described external screw thread of the screw thread mouth of each described internal thread (6) (2), and both piece together the multi-turn raceway, between the left end of described mother nut (3) and the leading screw (1), be equipped with dust ring (7) between the right-hand member of described secondary nut (4) and the leading screw (1), the outer surface of described mother nut (3) and described secondary nut (4) all respectively is connected with a pressing plate (9) by screw (8), be equipped with two intubate (10) in each described pressing plate (9), the port of each described intubate (10) one end all leads to a described raceway, in the described raceway of multi-turn, and be equipped with a plurality of steel balls (11) that are arranged in a row setting in each described intubate (10).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205145998U CN201815914U (en) | 2010-08-31 | 2010-08-31 | Preloaded ball-screw assembly with dual nuts, insertion tubes and washer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205145998U CN201815914U (en) | 2010-08-31 | 2010-08-31 | Preloaded ball-screw assembly with dual nuts, insertion tubes and washer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201815914U true CN201815914U (en) | 2011-05-04 |
Family
ID=43913884
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010205145998U Expired - Fee Related CN201815914U (en) | 2010-08-31 | 2010-08-31 | Preloaded ball-screw assembly with dual nuts, insertion tubes and washer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201815914U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104214295A (en) * | 2014-08-13 | 2014-12-17 | 济宁中科先进技术研究院有限公司 | Novel inertia element device for automobile suspension frame |
| CN106402308A (en) * | 2016-11-02 | 2017-02-15 | 常州机电职业技术学院 | Dual-nut pre-tightened ball screw pair |
-
2010
- 2010-08-31 CN CN2010205145998U patent/CN201815914U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104214295A (en) * | 2014-08-13 | 2014-12-17 | 济宁中科先进技术研究院有限公司 | Novel inertia element device for automobile suspension frame |
| CN106402308A (en) * | 2016-11-02 | 2017-02-15 | 常州机电职业技术学院 | Dual-nut pre-tightened ball screw pair |
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Legal Events
| 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: 20110504 Termination date: 20130831 |