GB1405974A - Hydraulic press with pulsating load - Google Patents
Hydraulic press with pulsating loadInfo
- Publication number
- GB1405974A GB1405974A GB3321973A GB3321973A GB1405974A GB 1405974 A GB1405974 A GB 1405974A GB 3321973 A GB3321973 A GB 3321973A GB 3321973 A GB3321973 A GB 3321973A GB 1405974 A GB1405974 A GB 1405974A
- Authority
- GB
- United Kingdom
- Prior art keywords
- main
- pressure
- space
- piston
- oscillation
- 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.)
- Expired
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21J—FORGING; HAMMERING; PRESSING METAL; RIVETING; FORGE FURNACES
- B21J9/00—Forging presses
- B21J9/10—Drives for forging presses
- B21J9/12—Drives for forging presses operated by hydraulic or liquid pressure
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B30—PRESSES
- B30B—PRESSES IN GENERAL
- B30B15/00—Details of, or accessories for, presses; Auxiliary measures in connection with pressing
- B30B15/16—Control arrangements for fluid-driven presses
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Percussion Or Vibration Massage (AREA)
- Apparatuses For Generation Of Mechanical Vibrations (AREA)
Abstract
1405974 Hydraulic presses; caulking; trimming EXPERIMENTALNY NAUCHNOISSLEDOVATELSKY INSTITUT KUZNECHNO-PRESSOVOGO MASHINOSTROENIA 12 July 1973 33219/73 Headings B3H B3U and B3W [Also in Divisions B5 and G3] An hydraulic press for applying a pulsating load has a working piston-cylinder 3, 2 whose upper space 6 is supplied with pulsating hydraulic pressure from a main 9 through a pulsator 10 and. whose lower space 7 is continuous connected to an accumulator 28 through a adjustable throttle 27 to enable the applitude of oscillation of the piston to be controlled. The pulsator 10 has a valve 13 urged by a piston 16 under air pressure to a position wherein the main 9 is ducted to the upper space 6. When the pressure rises after a working stroke the valve lifts to connect the main 9 to drain 11. The differential pressure on a pusher 14 causes the pusher to open the valve fully after the initial pressure drop. Finally the air pressure in the space 22 moves the piston 16 to close the drain and the cycle is repeated. The accumulator 23 is supplied with gas pressure, e.g. nitrogen. from a main 32 and liquid pressure from a main 30. The force of the press is determined by the air pressure in the space 22, the frequency of oscillation by the opening of the throttle 20 between the main 9 and the pusher space 18 and the amplitude of oscillation by the throttle 27 opening. The press may be used for producing stepped pipes, caulking and stretching.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB3321973A GB1405974A (en) | 1973-07-12 | 1973-07-12 | Hydraulic press with pulsating load |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB3321973A GB1405974A (en) | 1973-07-12 | 1973-07-12 | Hydraulic press with pulsating load |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1405974A true GB1405974A (en) | 1975-09-10 |
Family
ID=10350097
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB3321973A Expired GB1405974A (en) | 1973-07-12 | 1973-07-12 | Hydraulic press with pulsating load |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB1405974A (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4055063A (en) * | 1976-04-14 | 1977-10-25 | Balcke-Durr Aktiengesellschaft | Apparatus for the expansion of tube ends inside of a tube plate |
US4139982A (en) * | 1976-10-09 | 1979-02-20 | Wafios Maschinenfabrik, Wagner, Ficker & Schmid (Gmbh & Co., Kg) | Chain welding machine |
GB2246095A (en) * | 1990-07-20 | 1992-01-22 | Nisshin Spinning | Moulding friction member by controlled vibratory compaction |
-
1973
- 1973-07-12 GB GB3321973A patent/GB1405974A/en not_active Expired
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4055063A (en) * | 1976-04-14 | 1977-10-25 | Balcke-Durr Aktiengesellschaft | Apparatus for the expansion of tube ends inside of a tube plate |
FR2347993A1 (en) * | 1976-04-14 | 1977-11-10 | Balcke Duerr Ag | DEVICE FOR ENLARGING THE END OF TUBES INSIDE A JOINING PLATE |
US4139982A (en) * | 1976-10-09 | 1979-02-20 | Wafios Maschinenfabrik, Wagner, Ficker & Schmid (Gmbh & Co., Kg) | Chain welding machine |
GB2246095A (en) * | 1990-07-20 | 1992-01-22 | Nisshin Spinning | Moulding friction member by controlled vibratory compaction |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PS | Patent sealed | ||
PCNP | Patent ceased through non-payment of renewal fee |