FR2298262A2 - Hydraulic pivot for tractor towed rotary plough - Google Patents
Hydraulic pivot for tractor towed rotary ploughInfo
- Publication number
- FR2298262A2 FR2298262A2 FR7508226A FR7508226A FR2298262A2 FR 2298262 A2 FR2298262 A2 FR 2298262A2 FR 7508226 A FR7508226 A FR 7508226A FR 7508226 A FR7508226 A FR 7508226A FR 2298262 A2 FR2298262 A2 FR 2298262A2
- Authority
- FR
- France
- Prior art keywords
- valve
- cylinder
- piston
- rotary plough
- hydraulic pivot
- 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
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B11/00—Servomotor systems without provision for follow-up action; Circuits therefor
- F15B11/08—Servomotor systems without provision for follow-up action; Circuits therefor with only one servomotor
- F15B11/15—Servomotor systems without provision for follow-up action; Circuits therefor with only one servomotor with special provision for automatic return
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01B—SOIL WORKING IN AGRICULTURE OR FORESTRY; PARTS, DETAILS, OR ACCESSORIES OF AGRICULTURAL MACHINES OR IMPLEMENTS, IN GENERAL
- A01B3/00—Ploughs with fixed plough-shares
- A01B3/36—Ploughs mounted on tractors
- A01B3/40—Alternating ploughs
- A01B3/42—Turn-wrest ploughs
- A01B3/421—Turn-wrest ploughs with a headstock frame made in one piece
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- General Engineering & Computer Science (AREA)
- Soil Sciences (AREA)
- Environmental Sciences (AREA)
- Power Steering Mechanism (AREA)
Abstract
The steering device automatically converting the movement of the operating piston in the cylinder contains a pipe connecting the steering device and piston with the cylinder compartment. The pipe is opeed and closed by means of the change-over piston and incorporates a compression protection device in the form of a retaining valve. This valve has a valve tappet which operates in conjunction with a selaing gasket and is also connected to the atmosphere. The valve has a spring-loaded sealing-cone. The cylinder (1) and control apparatus (2) form a unit which is pivotally held in a mouting (4) on a construction
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19732363828 DE2363828C3 (en) | 1973-12-21 | Hydraulic turning device for a reversible plow that can be attached to a tractor | |
DE19752502811 DE2502811A1 (en) | 1975-01-24 | 1975-01-24 | ROTATING DEVICE FOR A ROTATING PLOW |
Publications (2)
Publication Number | Publication Date |
---|---|
FR2298262A2 true FR2298262A2 (en) | 1976-08-20 |
FR2298262B2 FR2298262B2 (en) | 1977-11-25 |
Family
ID=34117200
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR7508226A Granted FR2298262A2 (en) | 1973-12-21 | 1975-03-17 | Hydraulic pivot for tractor towed rotary plough |
Country Status (1)
Country | Link |
---|---|
FR (1) | FR2298262A2 (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2412242A1 (en) * | 1977-12-22 | 1979-07-20 | Weber Oelhydraulik | DEVICE FOR TILTING A REVERSIBLE PLOW |
FR2477240A1 (en) * | 1980-02-29 | 1981-09-04 | Mach Agricoles Cie Fse | Combined pressure and flow limiting valve - feeds double acting pneumatic cylinder via needle valve and screw adjuster |
FR2515920A1 (en) * | 1981-11-06 | 1983-05-13 | Demblon Claude | Hydraulic jack pivoting rear train of reversible plough - is controlled by distributor using one-way valve in upper chamber feed to reduce shock |
-
1975
- 1975-03-17 FR FR7508226A patent/FR2298262A2/en active Granted
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2412242A1 (en) * | 1977-12-22 | 1979-07-20 | Weber Oelhydraulik | DEVICE FOR TILTING A REVERSIBLE PLOW |
FR2477240A1 (en) * | 1980-02-29 | 1981-09-04 | Mach Agricoles Cie Fse | Combined pressure and flow limiting valve - feeds double acting pneumatic cylinder via needle valve and screw adjuster |
FR2515920A1 (en) * | 1981-11-06 | 1983-05-13 | Demblon Claude | Hydraulic jack pivoting rear train of reversible plough - is controlled by distributor using one-way valve in upper chamber feed to reduce shock |
Also Published As
Publication number | Publication date |
---|---|
FR2298262B2 (en) | 1977-11-25 |
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