FR2298262A2 - Hydraulic pivot for tractor towed rotary plough - Google Patents

Hydraulic pivot for tractor towed rotary plough

Info

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
Application number
FR7508226A
Other languages
French (fr)
Other versions
FR2298262B2 (en
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
HENGSTLER HYDRAULIK
Original Assignee
HENGSTLER HYDRAULIK
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Priority claimed from DE19732363828 external-priority patent/DE2363828C3/en
Priority claimed from DE19752502811 external-priority patent/DE2502811A1/en
Application filed by HENGSTLER HYDRAULIK filed Critical HENGSTLER HYDRAULIK
Publication of FR2298262A2 publication Critical patent/FR2298262A2/en
Application granted granted Critical
Publication of FR2298262B2 publication Critical patent/FR2298262B2/fr
Granted legal-status Critical Current

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
FR7508226A 1973-12-21 1975-03-17 Hydraulic pivot for tractor towed rotary plough Granted FR2298262A2 (en)

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)

* Cited by examiner, † Cited by third party
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

Cited By (3)

* Cited by examiner, † Cited by third party
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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