SU1446394A1 - Screw mechanism - Google Patents
Screw mechanism Download PDFInfo
- Publication number
- SU1446394A1 SU1446394A1 SU874274114A SU4274114A SU1446394A1 SU 1446394 A1 SU1446394 A1 SU 1446394A1 SU 874274114 A SU874274114 A SU 874274114A SU 4274114 A SU4274114 A SU 4274114A SU 1446394 A1 SU1446394 A1 SU 1446394A1
- Authority
- SU
- USSR - Soviet Union
- Prior art keywords
- rods
- screw
- gap
- semi
- adjusting screws
- Prior art date
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H25/00—Gearings comprising primarily only cams, cam-followers and screw-and-nut mechanisms
- F16H25/18—Gearings comprising primarily only cams, cam-followers and screw-and-nut mechanisms for conveying or interconverting oscillating or reciprocating motions
- F16H25/20—Screw mechanisms
- F16H25/22—Screw mechanisms with balls, rollers, or similar members between the co-operating parts; Elements essential to the use of such members
- F16H25/2204—Screw mechanisms with balls, rollers, or similar members between the co-operating parts; Elements essential to the use of such members with balls
- F16H25/2209—Screw mechanisms with balls, rollers, or similar members between the co-operating parts; Elements essential to the use of such members with balls with arrangements for taking up backlash
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Transmission Devices (AREA)
Abstract
Изобретение относитс к машиностроению . Цель изобретени - повышение точности путем выполнени устройства дл выборки зазора с возможное-:. Аю его регулировани . При подаче тока в электрические обмотки 6 стержни 5, выполненные из магнитострикционно- го материала, удлин ютс и свободными концами упираютс в регулировочные винты 8. От их усили полугайки 3 и 4 раздвигаютс в осевом направлении и выбирают зазор в зацеплении. Если не требуетс высока точность перемещени , например при холостом ходе, то электрические обмотки 6 обес точиваютс . При этом стержни 5 укорачиваютс и мекдУ их концами и торцами регулировочных винтов 8 образуютс регламентированные зазоры, обеспечивающие работу механизма с пониженными потер ми на трение. 2 ил. с ФThe invention relates to mechanical engineering. The purpose of the invention is to improve accuracy by providing a device for sampling a gap with the possible- :. Ayu is his regulation. When current is supplied to the electric windings 6, the rods 5 made of magnetostrictive material are elongated and the free ends rest against the adjusting screws 8. From their efforts, the semi-nuts 3 and 4 are moved apart in the axial direction and the gap is engaged. If a high accuracy of movement is not required, for example, when idling, the electric windings 6 are treated. At the same time, the rods 5 are shortened and, at their ends and the ends of the adjustment screws 8, regulated gaps are formed, which ensure the operation of the mechanism with reduced friction losses. 2 Il. with f
Description
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Изобретение относитс к машиностроению и может быть использовано в Механизмах прецизионного перемещени The invention relates to mechanical engineering and can be used in mechanisms for precision movement.
Цель изобретени - повышение точности механизма путем выполнени устройства дл выборки зазора с возможностью его регулировани .The purpose of the invention is to improve the accuracy of the mechanism by making the device for selecting the gap with the possibility of its adjustment.
На фиг.1 изображен винтовой механизм , продольный разрез; на фиг,2 - разрез А-А на фиг.К1 shows a screw mechanism, a longitudinal section; Fig, 2 - section aa on fig.k
Винтовой механизм содержит винт 1, взаимодействз щие с ним посредством шариков 2 две полугайки 3 и 4 и устройство дл выборки зазора в задепле- НИИ, выполненное в виде по крайней мере трех стержней 5, из магнитострик дионного материала, установленных равномерно вокруг винта 1 параллельно его оси и закрепленньпс одними концами в полугайке 3, электрических обмоток 6, установленных на соответствующих стержн х 5, в стаканах 7 и регулировочные винты 8 по числу стержней 5,The screw mechanism contains a screw 1, two semi-nuts 3 and 4 interacting with it by means of balls 2 and a device for sampling a gap in the back of the scientific research institute, made in the form of at least three rods 5, made of magnetostrics of a diode material installed evenly around the screw 1 parallel to it axis and fixed with one end in a half-hayke 3, electric windings 6, installed on the respective rods x 5, in glasses 7 and adjusting screws 8 according to the number of rods 5,
установленные в соответствующих резь- 25 две полугайки и устройство дл выбовых продольных отверсти х, которые выполнены в полугайке 4 и предназначены дП взаимодействи с другими концами соответствующих стержней 5.Two semi-nuts installed in the respective threads-25 and a device for selecting longitudinal holes which are made in the half-nut 4 and are designed with dp interaction with the other ends of the respective rods 5.
Дл присоединени винтового механизма к исполнительному устройству (не показан) на полугайке 3 выполнен фланец 9 с отверсти ми 10 дл крепежаTo attach the screw mechanism to the actuator (not shown) on the half-hitch 3, a flange 9 is made with holes 10 for fastening
Винтовой механизм работает следующим образом.The screw mechanism works as follows.
При обесточенных электрических обмотках 6 стержни 5, вьтолненные из магнитострикционного материала, имеют минимальную длину и между их свободными концами и регулировочными винта- Пи 8 образуютс регламентированные зазоры, за счет которых винтовойWith de-energized electrical windings 6, the rods 5, made of a magnetostrictive material, have a minimum length and between their free ends and the adjusting screws P 8 there are formed regulated gaps, due to which screw
механизм работает с минимальньпч трением .The mechanism works with minimal friction.
Данный режим работы механизма примен етс в тех случа х, когда от него не требуетс высокой точности, например при холостом ходе.This mode of operation of the mechanism is used in cases where it does not require high accuracy, for example, when idling.
При необ,ходимости работы с высокой точностью, на электрические обмотки 6 подаетс ток. При этом стержни 5 удлин ютс , свободными концами упираютс в торцы регулировочных винтов 8 и раздвигают полугайки 3 и 4, устран тем самым осевой зазор в зацеплении .When it is necessary to operate with high precision, current is supplied to the electric windings 6. At the same time, the rods 5 are lengthened, with their free ends they rest against the ends of the adjusting screws 8 and push the semi-nuts 3 and 4 apart, thereby eliminating the axial clearance in the engagement.
При этом в винтовом механизме создаетс нат г, обеспечивающий высокую точность перемещени подвижных частей механизма.In this case, a tension mechanism is created in the screw mechanism, which ensures high accuracy of movement of the moving parts of the mechanism.
Claims (1)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SU874274114A SU1446394A1 (en) | 1987-07-01 | 1987-07-01 | Screw mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SU874274114A SU1446394A1 (en) | 1987-07-01 | 1987-07-01 | Screw mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| SU1446394A1 true SU1446394A1 (en) | 1988-12-23 |
Family
ID=21315510
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| SU874274114A SU1446394A1 (en) | 1987-07-01 | 1987-07-01 | Screw mechanism |
Country Status (1)
| Country | Link |
|---|---|
| SU (1) | SU1446394A1 (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5505104A (en) * | 1993-04-23 | 1996-04-09 | Nippon Thompson Co., Ltd. | Drive apparatus and XY table on which it is equipped |
| ES2264847A1 (en) * | 2004-05-13 | 2007-01-16 | Shuton, S.A. | Balls based clamp screw assembly pre loaded by electric motors includes two independent revolving screws with opposed axial pre load forces |
| CN102788128A (en) * | 2012-07-06 | 2012-11-21 | 宋健 | High-speed ball screw pair with automatically adjustable pre-tightening force |
| CN111120608A (en) * | 2019-12-24 | 2020-05-08 | 颀中科技（苏州）有限公司 | Half nut assembly |
-
1987
- 1987-07-01 SU SU874274114A patent/SU1446394A1/en active
Non-Patent Citations (1)
| Title |
|---|
| Авторское свидетельство СССР № 748072, кл. F 16 Н 25/22, 1978. * |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5505104A (en) * | 1993-04-23 | 1996-04-09 | Nippon Thompson Co., Ltd. | Drive apparatus and XY table on which it is equipped |
| ES2264847A1 (en) * | 2004-05-13 | 2007-01-16 | Shuton, S.A. | Balls based clamp screw assembly pre loaded by electric motors includes two independent revolving screws with opposed axial pre load forces |
| CN102788128A (en) * | 2012-07-06 | 2012-11-21 | 宋健 | High-speed ball screw pair with automatically adjustable pre-tightening force |
| CN102788128B (en) * | 2012-07-06 | 2015-07-22 | 宋健 | High-speed ball screw pair with automatically adjustable pre-tightening force |
| CN111120608A (en) * | 2019-12-24 | 2020-05-08 | 颀中科技（苏州）有限公司 | Half nut assembly |
| CN111120608B (en) * | 2019-12-24 | 2022-04-22 | 颀中科技（苏州）有限公司 | Half nut assembly |
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