CN102729090A - Ball screw device - Google Patents
Ball screw device Download PDFInfo
- Publication number
- CN102729090A CN102729090A CN2011100921154A CN201110092115A CN102729090A CN 102729090 A CN102729090 A CN 102729090A CN 2011100921154 A CN2011100921154 A CN 2011100921154A CN 201110092115 A CN201110092115 A CN 201110092115A CN 102729090 A CN102729090 A CN 102729090A
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- nut
- screw
- intubate
- thread
- circular channel
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Abstract
The invention discloses a ball screw device which comprises a screw, wherein a nut is sleeved on the screw, an outer thread is arranged on the outer surface of the screw, an inner thread is arranged on the inner surface of the nut, the outer thread is matched with the inner thread and the outer thread and the inner thread defines a circular channel, an insertion pipe is arranged in the nut, one end of the insertion pipe is pressed under a pressure plate, the pressure plate is arranged on the nut, the other end of the insertion pipe is inserted into the circular channel, and a plurality of steel balls are arranged in the insertion pipe and the circular channels. The ball screw device has the advantages of simple structure, reliable working, good manufacturability and suitability for volume production.
Description
Technical field:
The present invention relates to the ball-screw apparatus that a kind of lathe is used.
Background technology:
At present; The rolling function parts have proposed brand-new requirements such as quick location, high-speed cutting, high-speed driving, because linear electric motors cost an arm and a leg the control system complex; The steel ball leading screw is still the best selection of high-speed driving; 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 feeding of telling 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.At present general high speed steel ball lead screw pair all is that big lead screw is secondary, and when big helical pitch steel ball lead screw pair adopted common inner circulation structure, common inner circulation structure generally was on the steel ball nut, to bore to mill round back device or oval back device hole; Back device diameter or length generally are 2.5 times helical pitches, cause on the nut body back device hole too big, poor processability; Nut quenching easy fracture; Firm inadequately after the assembling, therefore can not produce in enormous quantities, production efficiency is low.
Summary of the invention:
The objective of the invention is provides a kind of simple in structure in order to overcome above deficiency, reliable operation, good manufacturability, the ball-screw apparatus that is suitable for producing in batches.
The object of the invention is realized through following technical scheme: a kind of ball-screw apparatus, comprise leading screw, and be with nut on the leading screw; The outer surface of screw mandrel is provided with external screw thread, and the inner surface of nut is provided with internal thread, and external screw thread and internal thread are complementary and enclose circular channel; Be provided with intubate in the nut, an end of intubate is crushed under the pressing plate, and pressing plate is located on the nut; The other end of intubate is inserted in the circular channel, is provided with a plurality of steel balls in intubate and the circular channel.
Further improvement of the present invention is: be provided with two dust rings between screw mandrel and the nut, two dust rings place the two ends of nut respectively.
The present invention compared with prior art has the following advantages: through adopting cannula type, make steel ball when the circulation back, leave the threads of lead screw raceway, this ball-screw apparatus is not only simple in structure, reliable operation, and be applicable to production in enormous quantities.
Description of drawings:
Fig. 1 is a structural representation of the present invention;
Fig. 2 is that the A-A of Fig. 1 is to structural representation;
Label among the figure: 1-leading screw, 2-nut, 3-external screw thread, 4-internal thread, 5-circular channel, 6-intubate, 7-pressing plate, 8-steel ball, 9-dust ring.
The specific embodiment:
In order to deepen to understanding of the present invention, will combine embodiment and accompanying drawing that the present invention is made further detailed description below, this embodiment only is used to explain the present invention, does not constitute the qualification to protection domain of the present invention.
Show a kind of specific embodiment of ball-screw apparatus of the present invention like Fig. 1 and Fig. 2, comprise leading screw 1, be with nut 2 on the leading screw 1; The outer surface of screw mandrel 1 is provided with external screw thread 3, and the inner surface of nut 2 is provided with internal thread 4, and external screw thread 3 is complementary with internal thread 4 and encloses circular channel 5; Be provided with intubate 6 in the nut 2, an end of intubate 6 is crushed under the pressing plate 7, and pressing plate 7 is located on the nut 2; The other end of intubate 6 is inserted in the circular channel 5, and intubate 6 two vertically the end ends be the ligulate angle, the ligulate angle is used for guiding steel ball 8 to get into bend pipes; Constitute circulation canal, be provided with a plurality of steel balls 8 in intubate 6 and the circular channel 5, promptly steel ball 8 is delivered in the circular channel 5 through intubate 6; Be provided with the two ends that 9, two dust rings 9 of two dust rings place nut 2 respectively between screw mandrel 1 and the nut 2, dust ring 3 is used to stop iron filings and cooling fluid to get into loop body; This ball-screw apparatus is outer circulation, is about to gyration and is converted into rectilinear motion, or rectilinear motion is converted into the desirable product of gyration; Ball-screw apparatus is made up of screw rod, nut and steel ball etc., and it will rotatablely move and change into rectilinear motion, or change torque axis into axial repetitiousness active force; So just bearing is become sliding action from scroll actions, owing to have very little frictional resistance, lead screw assembly is widely used in various industrial equipments and precision instrument; Be the actuated element that the most often uses on toolroom machine and the precision optical machinery, its major function is to convert linear movement to rotatablely moving, and has high accuracy, invertibity and high-efficiency characteristics simultaneously concurrently; With the lead screw parafacies be 1/3 than driving moment owing to be to utilize steel ball motion, so staring torque is minimum; The such creeping phenomenon of sliding motion can not occur, can guarantee the accurate little feeding of realization, and screw component does not have sideshake, rigidity height and can add and give pressure; Owing to give pressure and can make end play reach negative value, and then obtain higher rigidity and (gives pressure through adding in the steel ball leading screw, when being actually used in mechanical device etc. to steel ball; Can make the rigidity enhancing of screw portion owing to the repulsion of steel ball), so and because sport efficiency is high, the little high speed feed of can realizing of heating moves, this ball-screw apparatus is not only simple in structure; Reliable operation, good manufacturability, and be applicable to batch process.
Claims (2)
1. a ball-screw apparatus comprises leading screw (1), it is characterized in that: be with nut (2) on the said leading screw (1); The outer surface of said screw mandrel (1) is provided with external screw thread (3); The inner surface of said nut (2) is provided with internal thread (4), and said external screw thread (3) and said internal thread (4) are complementary and enclose circular channel (5), are provided with intubate (6) in the said nut (2); One end of said intubate (6) is crushed under the pressing plate (7); Said pressing plate (7) is located on the said nut (2), and the other end of said intubate (6) is inserted in the said circular channel (5), is provided with a plurality of steel balls (8) in said intubate (6) and the said circular channel (5).
2. according to the said ball-screw apparatus of claim 1, it is characterized in that: be provided with two dust rings (9) between said screw mandrel (1) and the said nut (2), two said dust rings (9) place the two ends of said nut (2) respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011100921154A CN102729090A (en) | 2011-04-11 | 2011-04-11 | Ball screw device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011100921154A CN102729090A (en) | 2011-04-11 | 2011-04-11 | Ball screw device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102729090A true CN102729090A (en) | 2012-10-17 |
Family
ID=46985757
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011100921154A Pending CN102729090A (en) | 2011-04-11 | 2011-04-11 | Ball screw device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102729090A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108759628A (en) * | 2018-02-23 | 2018-11-06 | 广州飞机维修工程有限公司 | A kind of adjustable air bleed valve lead screw assembly clearance measurement tooling of aircraft |
| CN110170877A (en) * | 2019-05-24 | 2019-08-27 | 黄石百斯特智能科技股份有限公司 | A kind of hollow ball screw with high intensity |
| CN114346760A (en) * | 2022-03-18 | 2022-04-15 | 天津龙创恒盛实业有限公司 | System and method for monitoring real-time state of ball screw |
| CN116100792A (en) * | 2023-04-12 | 2023-05-12 | 和峻（广州）胶管有限公司 | Pipe winding device and pipe winding method for high-strength winding pipe |
-
2011
- 2011-04-11 CN CN2011100921154A patent/CN102729090A/en active Pending
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108759628A (en) * | 2018-02-23 | 2018-11-06 | 广州飞机维修工程有限公司 | A kind of adjustable air bleed valve lead screw assembly clearance measurement tooling of aircraft |
| CN108759628B (en) * | 2018-02-23 | 2021-02-05 | 广州飞机维修工程有限公司 | Frock is measured in adjustable gassing valve lead screw subassembly clearance of aircraft |
| CN110170877A (en) * | 2019-05-24 | 2019-08-27 | 黄石百斯特智能科技股份有限公司 | A kind of hollow ball screw with high intensity |
| CN114346760A (en) * | 2022-03-18 | 2022-04-15 | 天津龙创恒盛实业有限公司 | System and method for monitoring real-time state of ball screw |
| CN114346760B (en) * | 2022-03-18 | 2022-06-24 | 天津龙创恒盛实业有限公司 | System and method for monitoring real-time state of ball screw |
| CN116100792A (en) * | 2023-04-12 | 2023-05-12 | 和峻（广州）胶管有限公司 | Pipe winding device and pipe winding method for high-strength winding pipe |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20121017 |