JPS6438400A - Hydraulic jack - Google Patents
Hydraulic jackInfo
- Publication number
- JPS6438400A JPS6438400A JP19230087A JP19230087A JPS6438400A JP S6438400 A JPS6438400 A JP S6438400A JP 19230087 A JP19230087 A JP 19230087A JP 19230087 A JP19230087 A JP 19230087A JP S6438400 A JPS6438400 A JP S6438400A
- Authority
- JP
- Japan
- Prior art keywords
- bracket
- lock nut
- gear
- piston rod
- slide shaft
- 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.)
- Granted
Links
Abstract
PURPOSE: To automatically lock and position a ram by providing a bracket on a lock nut to be vertically interlocked with it, providing a gear, rotatably connecting a slide shaft to the bracket, and providing a drive gear on this shaft to be engaged with the above gear. CONSTITUTION: As a piston rod 3 is elongated, a lock nut 5 and a bracket 17 are moved up, and a slide shaft 20 is also moved up by interlock with the bracket 17. When the piston rod 3 is moved up to a specified position, it is stopped, a rotary shaft 26 is rotated through a motor 28 to rotate the slide shaft 20 and a gear 14, rotation force of the gear 14 is transmitted to the lock nut 5, and the lock nut 5 is rotated while being lowered to be applied to a top part of a cylinder tube 1. At this time, the bracket 17 is lowered, the slide shaft 20 is also rotated while being lowered, and load to the piston rod 3 is carried through the lock nut 5 by the cylinder tube 1, thereby the piston rod 3 is positioned.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP62192300A JP2527332B2 (en) | 1987-07-31 | 1987-07-31 | Hydraulic jack |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP62192300A JP2527332B2 (en) | 1987-07-31 | 1987-07-31 | Hydraulic jack |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS6438400A true JPS6438400A (en) | 1989-02-08 |
JP2527332B2 JP2527332B2 (en) | 1996-08-21 |
Family
ID=16288982
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP62192300A Expired - Lifetime JP2527332B2 (en) | 1987-07-31 | 1987-07-31 | Hydraulic jack |
Country Status (1)
Country | Link |
---|---|
JP (1) | JP2527332B2 (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN107630857A (en) * | 2017-11-09 | 2018-01-26 | 北京公联洁达公路养护工程有限公司 | Double action strip is servo-actuated mechanical lock oil cylinder |
CN108584830A (en) * | 2018-05-14 | 2018-09-28 | 长江三峡通航管理局 | A kind of hydraulic jack and control method with mechanical self-latching protective device |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR101831255B1 (en) * | 2017-05-29 | 2018-02-23 | (주)모든엔지니어링 | Preloading Jack Apparatus, and Lifting Method of Structure using such Jack Apparatus |
KR101945977B1 (en) * | 2017-06-20 | 2019-04-29 | (주)모든엔지니어링 | Preloading Jack Apparatus, and Lifting Method of Structure using such Jack Apparatus |
-
1987
- 1987-07-31 JP JP62192300A patent/JP2527332B2/en not_active Expired - Lifetime
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN107630857A (en) * | 2017-11-09 | 2018-01-26 | 北京公联洁达公路养护工程有限公司 | Double action strip is servo-actuated mechanical lock oil cylinder |
CN108584830A (en) * | 2018-05-14 | 2018-09-28 | 长江三峡通航管理局 | A kind of hydraulic jack and control method with mechanical self-latching protective device |
Also Published As
Publication number | Publication date |
---|---|
JP2527332B2 (en) | 1996-08-21 |
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