JPS6345253U - - Google Patents
Info
- Publication number
- JPS6345253U JPS6345253U JP13607186U JP13607186U JPS6345253U JP S6345253 U JPS6345253 U JP S6345253U JP 13607186 U JP13607186 U JP 13607186U JP 13607186 U JP13607186 U JP 13607186U JP S6345253 U JPS6345253 U JP S6345253U
- Authority
- JP
- Japan
- Prior art keywords
- ball
- groove
- ball groove
- screw shaft
- lead
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 230000002093 peripheral effect Effects 0.000 claims 2
- 230000036316 preload Effects 0.000 claims 2
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
Landscapes
- Transmission Devices (AREA)
Description
添付図面第1図〜第4図は本考案の実施例を示
し、第1図は斜視図、第2図は第1図中A―A線
に沿う断面図、第3図は正面図、第4図は多条を
構成する各ボール溝の形成ピツチを説明する図、
第5図、第6図は従来技術を示し、それぞれ縦断
面図である。
尚、図中1…ボールねじ本体、2…ねじ軸、3
…ボールナツト、4…ボール、5,6…らせん溝
、5a,5b…ボール溝、6a,6b…ボール溝
、P,P′,P″…ボール溝の形成ピツチ、をそ
れぞれ示している。
The attached drawings, FIGS. 1 to 4, show an embodiment of the present invention, in which FIG. 1 is a perspective view, FIG. 2 is a sectional view taken along line A--A in FIG. 1, FIG. 3 is a front view, and FIG. Figure 4 is a diagram illustrating the formation pitch of each ball groove that makes up the multi-strip.
FIGS. 5 and 6 show the prior art, and are longitudinal sectional views, respectively. In addition, in the figure 1...Ball screw body, 2...Screw shaft, 3
. . . ball nut, 4 . . . ball, 5, 6 . . . spiral groove, 5a, 5b .
Claims (1)
成されていると共に、ボールナツトの内周面にも
所定のリードでボール溝が形成されていて、上記
ねじ軸のボール溝とボールナツトのボール溝の間
に介在されたボールとでらせん溝が形成され、予
圧により軸方向の隙間が零になるように構成され
たボールねじに於いて、上記らせん溝を多条式に
すると共に、ねじ軸2とボールナツト3のいずれ
か一方には各条とも一定のリードL及び一定のピ
ツチPでボール溝を形成し、ねじ軸2とボールナ
ツト3のいずれか他方に形成される多条のボール
溝に関しては、そのリードLは各条とも一定に形
成するも、一つの条のボール溝とそれに対して隣
り合う何れか一方の条のボール溝間のピツチをP
′とし、一つの条のボール溝とそれに対して隣り
合う何れか他方の条のボール溝間のピツチをP″
とし、上記P′とP″との間に偏差を設け、ねじ
軸2の外周面のボール溝とボールナツト3の内周
面のボール溝間のボール4を介して軸方向に沿う
方向に予圧をかけるようにしたことを特徴とする
ボールねじ。 A ball groove is formed on the outer peripheral surface of the screw shaft with a predetermined lead, and a ball groove is also formed on the inner peripheral surface of the ball nut with a predetermined lead, so that the ball groove of the screw shaft and the ball groove of the ball nut are formed. In a ball screw configured such that a helical groove is formed by the balls interposed therebetween and the gap in the axial direction becomes zero due to preload, the helical groove is made into a multi-thread type, and the screw shaft 2 and A ball groove is formed in either one of the ball nuts 3 with a constant lead L and a constant pitch P for each thread, and as for the multi-strip ball groove formed in the other of the screw shaft 2 and the ball nut 3, The lead L is formed uniformly for each line, but the pitch between the ball groove of one line and the ball groove of one of the adjacent lines is set to P.
', and the pitch between the ball groove of one row and the ball groove of any adjacent row is P''
A deviation is provided between the above P' and P'', and a preload is applied in the axial direction via the ball 4 between the ball groove on the outer circumferential surface of the screw shaft 2 and the ball groove on the inner circumferential surface of the ball nut 3. A ball screw characterized by being designed to be hooked.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP13607186U JPS6345253U (en) | 1986-09-04 | 1986-09-04 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP13607186U JPS6345253U (en) | 1986-09-04 | 1986-09-04 |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS6345253U true JPS6345253U (en) | 1988-03-26 |
Family
ID=31038849
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP13607186U Pending JPS6345253U (en) | 1986-09-04 | 1986-09-04 |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS6345253U (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH01312262A (en) * | 1988-06-11 | 1989-12-18 | Nippon Seiko Kk | Ball screw device |
JPH0593304A (en) * | 1991-05-27 | 1993-04-16 | Toohaku:Kk | Method for sewing pocket bundle edge |
WO2020217346A1 (en) * | 2019-04-24 | 2020-10-29 | 三菱電機株式会社 | Feed screw mechanism and actuator |
-
1986
- 1986-09-04 JP JP13607186U patent/JPS6345253U/ja active Pending
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH01312262A (en) * | 1988-06-11 | 1989-12-18 | Nippon Seiko Kk | Ball screw device |
JPH0593304A (en) * | 1991-05-27 | 1993-04-16 | Toohaku:Kk | Method for sewing pocket bundle edge |
WO2020217346A1 (en) * | 2019-04-24 | 2020-10-29 | 三菱電機株式会社 | Feed screw mechanism and actuator |
JPWO2020217346A1 (en) * | 2019-04-24 | 2021-09-13 | 三菱電機株式会社 | Lead screw mechanism and actuator |