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WO1991016811A1 - Dispositif pour le montage en saillie d'outillages sur un tracteur - Google Patents

Dispositif pour le montage en saillie d'outillages sur un tracteur Download PDF

Info

Publication number
WO1991016811A1
WO1991016811A1 PCT/EP1991/000828 EP9100828W WO9116811A1 WO 1991016811 A1 WO1991016811 A1 WO 1991016811A1 EP 9100828 W EP9100828 W EP 9100828W WO 9116811 A1 WO9116811 A1 WO 9116811A1
Authority
WO
WIPO (PCT)
Prior art keywords
frame
coupling
coupling part
tractor
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.)
Ceased
Application number
PCT/EP1991/000828
Other languages
German (de)
English (en)
Inventor
Josef Steiner
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.)
Individual
Original Assignee
Individual
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
Application filed by Individual filed Critical Individual
Publication of WO1991016811A1 publication Critical patent/WO1991016811A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • 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
    • A01B71/00—Construction or arrangement of setting or adjusting mechanisms, of implement or tool drive or of power take-off; Means for protecting parts against dust, or the like; Adapting machine elements to or for agricultural purposes
    • A01B71/06—Special adaptations of coupling means between power take-off and transmission shaft to the implement or machine
    • A01B71/063—Special adaptations of coupling means between power take-off and transmission shaft to the implement or machine for enabling transmission coupling and connection between tractor and implements to be controlled from the driver's seat

Definitions

  • the invention relates to a device for cultivating agricultural and municipal implements on the front or rear of a tractor according to the preamble of claim 1.
  • Such a device is known from AT-PS 379048.
  • the coupling part mounted on the connecting frame is designed to be axially displaceable. This is associated with a relatively complicated and troublesome, time-consuming to use mechanism. There is also a high level of wear on the two coupling parts.
  • the object of the invention is to simplify the connection of the drive shaft of the implement with the PTO of the tractor and to make it more solid and reliable than before.
  • Figure 1 is a side view of the front of a tractor with a side view of the frontally arranged coupling frame.
  • Fig. 2 is a front view of the clutch frame
  • Figure 3 is a partial view from above of the front of the tractor, the coupling frame and the lead frame with attached implement.
  • Fig. 4 shows a section through the coupling part elastically mounted on the coupling frame;
  • Fig. 5 is a rear view of the lead frame;
  • Fig. 6 is a section along the line VI-VI in Fig. 5;
  • FIG. 7 shows a longitudinal section through another embodiment of the lead frame.
  • Fig. 8 shows a section through a further embodiment of the coupling part mounted on the coupling frame.
  • the front of a tractor 1 has a three-point linkage, which comprises a length-adjustable upper link 2 and two lower links 3, 4.
  • the upper link 2 and the lower link 3, 4 carry a coupling frame 5, whereby they are articulated to the tractor 1 and the coupling frame 5 by means of pivot pins 6, 7 and 8, 9, 10, respectively.
  • the coupling frame 5 is essentially designed as a triangle, the upward tip 11 of which is inclined away from the tractor 1. To adjust the height of the coupling frame 5, working cylinders 12 are articulated on the one hand on the tractor 1 and on the other hand on the lower links 3, 4.
  • the triangular coupling frame 5 consists essentially of two side parts 16, 17 from a z. B. box-shaped profile, the head part 18 with the tip 11 and a plate-shaped web 19 between the two side parts 16, 17th
  • the coupling part 15 has a sleeve or a mouth 15 ', which is provided on the inside with a spline 20.
  • the mouth 15 * or the coupling part 15 passes through a corresponding recess 21 in the web 19.
  • a ball or similar rolling bearing 22 is provided for mounting the coupling part 15 on the web 19.
  • Two or more circumferentially distributed radial projections 24, 25 are provided on the outer race 23 of the roller bearing 22.
  • a plate 28 is vulcanized onto the end face of the element 27 facing the projection 25 and is used to fasten the element 27 to the projection 25 with a bolt 29.
  • the rubber elements 26, 27 can also be fastened to the web 19 by vulcanizing, gluing or the like.
  • an elastic element 26 * can also be provided, which surrounds the outer ring 23 'of the bearing 22 "in an annular manner and is fastened to the web 19 of the coupling frame 5 (cf. FIG. 8).
  • the pivot pins 9, 10 on the coupling frame 5, on which the lower links 3, 4 engage are each fastened between two tractor-side straps 30, 31 and 32, 33 arranged on the lower end of the side parts 16, 17 . This ensures proper transmission of the tensile force F from the lower links 3, 4 to the coupling frame 5 without fear of shearing or other deformation of the pivot pins 9, 10.
  • the coupling frame 5 is used for coupling an agricultural or municipal implement 34 by means of a connecting frame 35, to which the implement 34 can be firmly attached.
  • the implement 34 can be, for example, a mower, a rake or the like.
  • the lead frame 35 is formed according to the coupling frame as a triangle, that is, with two side parts 36, 37, a head part 38 and a web 39 between the two side parts 36, 37.
  • the side parts 36, 37 have a box-shaped according to FIG Profile on and are provided with a projection 43 projecting to the coupling frame 5, which is inclined outwards at its end facing the coupling frame 5.
  • the head part 38 has between two cheeks 40, 41 a bolt 42 or a corresponding hanging part which engages over the tip 11 of the head part 18 of the coupling frame 5 when the lead frame 35 is coupled to the implement 34 on the coupling frame 5. For this purpose, the tip 11 projects beyond the level of the coupling frame 5 in the direction of the connecting frame 35.
  • the coupling frame 5 and the lead frame 35 are folded together.
  • the coupling frame 5 is positively gripped by the projections 43 on the connection frame 35.
  • a locking device which according to FIG. 2 consists of a single-acting working cylinder 44 attached to the coupling frame 5.
  • the working cylinder 44 has a rod 46 which is fastened to the cylinder housing on the side opposite the piston rod 44.
  • the rods 45, 46 are guided in bores in the inner plates 31, 33 and additionally engage in bores in the outer plates 30, 34 in the extended state of the working cylinder 43.
  • connection frame 35 is provided at the lower end of the two side parts 36, 37 each with a projection 47, 48 directed towards the coupling frame 5, which has a bore 49, 50. If the lead frame 35 and the coupling frame 5 have been folded, 48 35, the projections 47 of the lead frame between 'the tab pairs 30, 31 and 32, 33 on the coupling frame 5, the bores 49, 50 of the projections 47, 48 with the holes in the lugs 30 to 34 cursed. In this position, the rods 45, 46 are pushed through the bores 49, 50 in the projections 47, 48 of the lead frame 35 when the working cylinder 44 is extended, and thus the lead frame 35 is firmly locked to the coupling frame 5.
  • two stops are provided, namely a ring 51 fastened to the piston rod 45 between the inner tab 31 of the coupling frame 5 and the working cylinder 44, and a projection 52 fastened to the web 19 of the coupling frame 5 between the Ring 51 and the working cylinder 44th
  • the working cylinder 44 thus changes its axial position according to the arrow P according to FIG. 2 when locking and unlocking.
  • This can be used to actuate a device arranged on the working device, for example a support (not shown) on Tool 34, which is moved downward when the working cylinder 44 is moved into the unlocked position in order to support the tool 34 after uncoupling from the tractor 1.
  • projections 53, 54 are provided on the working cylinder, with which levers, traction means or similar organs are operatively connected in order to actuate the corresponding device.
  • the drive shaft 34 'of the implement 34 is connected to a second coupling part 55.
  • the coupling part 55 can be designed as a stub shaft, which is provided with a toothing 56 complementary to the spline 22 of the mouth 15 'of the coupling part 15 on the coupling frame 5.
  • the coupling part or the shaft stub 55 is mounted on the web 39 of the lead frame 35 with a roller bearing, that is to say for example a ball bearing 57.
  • the coupling frame 5 When the coupling frame 5 is coupled to the coupling frame 5, the stub shaft 55 with the spline 56 is inserted into the mouth 15 'on the coupling frame 5 in order to connect the first coupling part 15 to the stub shaft or the second coupling part 55 and thus the drive shaft of the implement 34 to connect the PTO 13 of the tractor 1.
  • the implement 34 can be attached to both the front and the rear of the tractor 1.
  • the lead frame 35 'shown in FIG. 7 is primarily intended for rear attachment, namely of tools that are pulled, for example, by a drawbar, for. B. a loading wagon.
  • a trailer coupling 69 which is designed, for example, as a hitch, is fastened to the web 59 of the connecting frame 35 ', the drive shaft of the towed implement, for example the loading wagon, via a drive shaft (not shown) (corresponding to the drive shaft 14 according to FIG. 1) with the stub shaft 55 connected is.
  • the trailer coupling 69 is arranged according to FIG. 7 above the shaft end 55. However, if the drive shaft of the implement lies over its drawbar, the trailer coupling 69 can also be fastened at 70.
  • connection frame 35 ' can also be rigidly connected to the tractor 1 instead of via the links 2 to 4.
  • the coupling frame 5 must then be designed such that it can be pivoted against the connection frame 35'.
  • plug-in couplings 71, 72 are provided on the web 19 of the coupling frame 5 and on the web 39 of the connecting frame 35.
  • the tip 11 of the coupling frame 5 inclined to the connecting frame 35, 35 ', which protrudes beyond the level of the coupling frame 5, has the advantage that the coupling frame 5 is only at a relatively small angle with respect to the connecting frame 35, 35' when it is attached to the tip 11 must be tilted, namely only by the length with which the stub shaft 55 protrudes from the bearing 57.
  • the bearing 57 that is to say the second coupling part 55, can also be elastically fastened to the connecting frame 35, 35 '. It is also conceivable to fasten both bearings 22 and 57 elastically, although problems can then arise due to the uncertainty of the assignment of the two coupling parts 15 and 55 to one another.
  • the first coupling part 15 is designed as a unit, which can be cast or forged.
  • this unit consists of a fork 15 '* to which the propeller shaft 14 is connected, as shown in FIG. 1.
  • the stub shaft 55 is formed as a unit with a fork 55 ', to which the drive shaft 34' can be connected via a cardan shaft, if necessary.
  • the first coupling part 15 is also formed as a unit.
  • a connecting part 60 for as a constant velocity universal joint shaft trained drive shaft 14 is provided. That is, the propeller shaft 14 is provided with a spherical joint head 61 which is mounted in the shell-shaped connecting part 60 such that the propeller shaft 14 and the coupling part 15 are mutually angularly movable.
  • balls 62 are provided which engage in the axially extending grooves in the inner surface of the shell-shaped connecting part 60 and in the spherical joint head 31.
  • a cover device is provided on the coupling frame 5 to protect the coupling part 15 from contamination.
  • the cover device is designed as a cover plate 63, which can be rotatably or displaceably attached to the web 19. With the cover plate 63, the plug-in couplings 71 can also be protected from dirt.
  • the cover plate 63 can be designed such that it is automatically actuated when the coupling frame 5 approaches the connecting frame 35, 35 'in order to release the coupling part 15 or the plug-in couplings 71.
  • a central adjustment device can be provided on the coupling frame 5, which has a shaft 64 mounted on the web 19, with which a device of the working device 34 can be actuated.
  • the central adjustment device or the shaft 64 can be driven, for example, by an electric motor, pneumatically or hydraulically. It can be used to control an operating device on the implement 34, for example to adjust the height of a rake, or for example to regulate the application rates of fertilizer, seeds, herbicides, etc.
  • the coupling part 55 mounted in the connecting frame 35, 35 ' can also be connected directly to the propeller shaft 14 instead of to the coupling part 15 mounted in the coupling frame 5.

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Soil Sciences (AREA)
  • Environmental Sciences (AREA)
  • Agricultural Machines (AREA)

Abstract

Un dispositif pour le montage en saillie d'un outillage agricole (34) sur un tracteur (1) présente un cadre d'accouplement (5) relié au tracteur (1) et un cadre de raccordement (35) relié à l'outillage (34) et accouplable avec le cadre d'accouplement (5). L'arbre de prise de force (13) du tracteur (1) est relié par l'intermédiaire d'un arbre articulé (14) à un demi-accouplement (15), lequel est logé de manière rotative dans le cadre d'accouplement (5). Le demi-accouplement (15) sur le cadre d'accouplement (35) est accouplable avec un demi-accouplement (55) logé sur le cadre d'accouplement (35). Le demi-accouplement (15) sur le cadre d'accouplement (5) est monté mobile radialement, axialement et angulairement dans le plan du cadre d'accouplement (5).
PCT/EP1991/000828 1990-04-30 1991-04-30 Dispositif pour le montage en saillie d'outillages sur un tracteur Ceased WO1991016811A1 (fr)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
ATA987/90 1990-04-30
AT98790 1990-04-30
AT242090 1990-11-30
ATA2420/90 1990-11-30

Publications (1)

Publication Number Publication Date
WO1991016811A1 true WO1991016811A1 (fr) 1991-11-14

Family

ID=25594512

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP1991/000828 Ceased WO1991016811A1 (fr) 1990-04-30 1991-04-30 Dispositif pour le montage en saillie d'outillages sur un tracteur

Country Status (4)

Country Link
EP (1) EP0480005A1 (fr)
AU (1) AU7770791A (fr)
CA (1) CA2063450A1 (fr)
WO (1) WO1991016811A1 (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU639801B2 (en) * 1990-06-28 1993-08-05 John William Ryan Improvements in or relating to ploughs
ES2128902A1 (es) * 1995-09-13 1999-05-16 Euro Implementos S L Dispositivo para enganchar un implemento a una maquina.
AT6440U3 (de) * 2003-07-22 2004-04-26 Gangl Johann Universell einsetzbares anspannsystem
US10794457B2 (en) 2017-08-25 2020-10-06 Blount, Inc. Power take off driveline lift and coupling assist device

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH433999A (fr) * 1963-06-18 1967-04-15 Weather Seal Inc Accouplement de prise de force entre un véhicule et un instrument attelé
GB1088954A (en) * 1963-07-10 1967-10-25 Rubery Owen & Company Ltd Improvements to power take-off couplings
US3961677A (en) * 1972-09-29 1976-06-08 Jean Walterscheid Gmbh Device for connecting a power transmission shaft of an agricultural implement, machine or the like to a tractor power take-off shaft
FR2340675A2 (fr) * 1975-03-19 1977-09-09 Fiat France Sa Dispositif d'accouplement automatique des outils a l'avant et a l'arriere d'un vehicule automoteur
AT379048B (de) * 1983-03-01 1985-11-11 Steiner Josef Schnellkupplung zum anschluss landwirtschaftlicher arbeitsmaschinen

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH433999A (fr) * 1963-06-18 1967-04-15 Weather Seal Inc Accouplement de prise de force entre un véhicule et un instrument attelé
GB1088954A (en) * 1963-07-10 1967-10-25 Rubery Owen & Company Ltd Improvements to power take-off couplings
US3961677A (en) * 1972-09-29 1976-06-08 Jean Walterscheid Gmbh Device for connecting a power transmission shaft of an agricultural implement, machine or the like to a tractor power take-off shaft
FR2340675A2 (fr) * 1975-03-19 1977-09-09 Fiat France Sa Dispositif d'accouplement automatique des outils a l'avant et a l'arriere d'un vehicule automoteur
AT379048B (de) * 1983-03-01 1985-11-11 Steiner Josef Schnellkupplung zum anschluss landwirtschaftlicher arbeitsmaschinen

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU639801B2 (en) * 1990-06-28 1993-08-05 John William Ryan Improvements in or relating to ploughs
ES2128902A1 (es) * 1995-09-13 1999-05-16 Euro Implementos S L Dispositivo para enganchar un implemento a una maquina.
AT6440U3 (de) * 2003-07-22 2004-04-26 Gangl Johann Universell einsetzbares anspannsystem
US10794457B2 (en) 2017-08-25 2020-10-06 Blount, Inc. Power take off driveline lift and coupling assist device

Also Published As

Publication number Publication date
AU7770791A (en) 1991-11-27
CA2063450A1 (fr) 1991-10-31
EP0480005A1 (fr) 1992-04-15

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