WO1987000392A1 - Organe de commande pour coutres de semoirs agricoles - Google Patents

Organe de commande pour coutres de semoirs agricoles Download PDF

Info

Publication number
WO1987000392A1
WO1987000392A1 PCT/GB1986/000407 GB8600407W WO8700392A1 WO 1987000392 A1 WO1987000392 A1 WO 1987000392A1 GB 8600407 W GB8600407 W GB 8600407W WO 8700392 A1 WO8700392 A1 WO 8700392A1
Authority
WO
WIPO (PCT)
Prior art keywords
coulters
control member
drill
springs
rotation
Prior art date
Application number
PCT/GB1986/000407
Other languages
English (en)
Inventor
Manufacturing Limited Massey-Ferguson
Services N.V. Massey-Ferguson
Original Assignee
Withers, Kenneth, Ian
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 Withers, Kenneth, Ian filed Critical Withers, Kenneth, Ian
Publication of WO1987000392A1 publication Critical patent/WO1987000392A1/fr

Links

Classifications

    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01C—PLANTING; SOWING; FERTILISING
    • A01C7/00—Sowing
    • A01C7/08—Broadcast seeders; Seeders depositing seeds in rows
    • A01C7/081—Seeders depositing seeds in rows using pneumatic means
    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01C—PLANTING; SOWING; FERTILISING
    • A01C7/00—Sowing
    • A01C7/20—Parts of seeders for conducting and depositing seed
    • A01C7/201—Mounting of the seeding tools
    • A01C7/205—Mounting of the seeding tools comprising pressure regulation means

Definitions

  • Control member for coulters of agricultural drills
  • This invention relates to agricultural drills, especially the coulter mounting and actuating mechanism of agricultural drills.
  • Pneumatic drills comprise a frame carrying a central seed hopper, metering means to dispense seed from the hopper, and distribution means to convey the seed in a flow of air to coulters spaced laterally across the width of the drill.
  • the coulters are pivotally mounted on the frame and are forced into work under control of an actuating mechanism comprising a rotatable control member connected to each coulter via an associated force transmitting spring.
  • the construction is lightweight and the drill is designed to be semi-mounted so as to reduce cost and increase work rate.
  • the coulters are pivotally mounted on a transverse beam so as to trail behind the beam, and the rotatable control member extends generally parallel to the beam and carries a plurality of levers each associated with a coulter and being connected thereto by a respective force transmitting tension spring.
  • the loading of the springs, and thus the depth of penetration of the coulters, is determined by the angular setting of the rotatable control member, which in turn is controlled by manual adjustment means.
  • a characteristic of this arrangement is that the tension in the force transmitting springs produces a reaction that increases the force needed to operate the manual adjustment means. Disclosure of the Inventicn
  • an agricultural drill comprises a frame carrying a hopper, a plurality of coulters pivotally mounted on the frame and spaced laterally across the width of the drill, and an actuating mechanism comprising a rotatable control member and force transmitting springs connected between the control member and the coulters so that rotation of the control member loads the coulters towards working engagement with the ground, characterised in that the coulters are pivotally connected to the rotatable control member so that rotation o fthe control member loads the force transmitting springs while the coulters are held against rotation by contact with the ground.
  • the coulter and force transmitting springs move together as an assembly with rotation of the control member,the springs are not loaded until the coulters engage the ground and move relative to the control member.
  • adjustment of the angular setting of the control member by a suitable manual adjustment means is easily accomodated before the coulters are put into work. It is only when in work that the coulters are loaded by the springs and a reaction is exerted on the control member and its adjustment means.
  • Figure 1 is a side elevation of a pneumatic drill according to the invention.
  • Figure 2 is a side elevation of a bearing and the adjustment means for the control member in Figure 1, and
  • Figure 3 is a rear elevation of the bearing and adjustment means of Figure 2. Best Mode of Carrying out the Invention
  • the illustrated drill comprises a frame 1 carrying a seed hopper 2.
  • a plurality of seed metering mechanisms 3 dispose seed from the hopper into pneumatic distribution means 4 that conveys the seed in a flow of air to each of a plurality of coulters 5 pivotally mounted on the frame.
  • the seed metering mechanisms 3 are mounted in two rows across the width of the hopper, one beneath each inclined bottom walls 6 of the hopper, and each delivers seed into pneumatic distribution means comprising a venturi unit 7 and a length of tube 8 connecting the unit 7 to an associated coulter 5.
  • the venturi units 7 are connected to a common air manifold 9 that is pressurised by an air pump 10.
  • Tractor mounting points 11 are provided on the front of the frame 1 for connection of the drill to the rear lifting links of a tractor.
  • a pair of landwheels 12 are mounted on the frame so as to support the drill when it is lowered onto the ground for work, and a transmission system 13 between the landwheels and the metering mechanisms serves to drive the latter and dispense seed.
  • a rotatable control beam 14 is mounted in a pair of bearings 15 ( Figures 2 and 3) so that it extends laterally across the width of the drill.
  • Each bearing 15 is a plane bearing comprising a two-part outer support 16 connected to the frame 1 and an inner ring 17 that is connected coaxially to the control beam 14 and is rotatably received in a circular cut-out 18 in the outer support 16.
  • a pair of bolted flanges 19 hold the two parts of the outer support 16 together and overlap the edges of the inner ring 17 to hold it captive.
  • Each coulter comprises an arm 20 that carries a furrow opening tool 21 at its rear end and which is pivotally connected to the control beam 14 at its leading end via a pivot pin 22 engaging a bracket 23 projecting upwards from the top of the control beam.
  • a pair of tension springs 24 are connected between the arm 20 of each coulter and a bracket 25 that projects downwards from the underside of the control beam, thereby to eact in pulling the coulter downwards.
  • the weight of the coulters and the tension springs 24 swing the coulters arms downwards to a lowermost position in which the coulters engage the control beam.
  • the coulters swing upwards by contact with the ground and extend the springs 24 to increase the tension therein.
  • the weight of the coulters and the loading of the springs 24 therefore urge the tools 21 into work and determine the sowing depth of the coulters.
  • the angular setting of the control beam within the bearings 15 can be adjusted by a manual adjustment means 25' (figures 2 and 3). It will be clear from Figure 1, that anti ⁇ clockwise rotation of the control beam by the adjustment means 25 will further extend the springs 24 and therefore increase the tension therein.
  • the adjustment means 25 comprises a lever arm 26 connected to the control beam 14 and a vertical shaft 27 rotatably supported in a bearing 28 and having a lower portion 29 on which is threaded a sleeve 30 that cooperates with the end of lever arm 26 so that rotation of the shaft 27 moves the sleeve axially on the shaft and therefore pivots the lever arm 26.
  • a bevel gearwheel 31 at the upper end of the shaft 27 engages a bevel gearwheel 32 on a cross-shaft 33, and the outer free end 34 of the cross-shaft 33 is adapted for engagement by a winding handle, whereby shafts 33 and 27 can be rotated to move the lever arm 26 and adjust the angular setting of the control beam 14.
  • the coulters 5 are of two lengths one set having long arms 20 and the other set having short arms 20 so that the tools- 21 of each set are spaced apart in the direction of travel. Accordingly, the geometry of the tension springs 24 for the long and short coulters is also made different for each so as to ensure that the loading characteristics of both are the same. Adjustment of the control beam 14 then produces the same affect on sowing depth for both the long and short coulters.

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Soil Sciences (AREA)
  • Environmental Sciences (AREA)
  • Sowing (AREA)

Abstract

Un semoir agricole comprend un bâti (1) portant une trémie (2), une pluralité de coutres (5) montés en pivot sur le bâti (1) et espacés latéralement sur toute la largeur du semoir, ainsi qu'un mécanisme d'actionnement comportant un organe de commande rotatif (14) et des ressorts (24) de transmission d'efforts reliés entre l'organe de commande (14) et les coutres (5) de sorte que la rotation de l'organe de commande (14) charge les coutres (5) de manière à ce que ceux-ci s'engagent dans la terre pour la travailler. Le semoir est caractérisé en ce que les coutres (5) sont reliés (22) de manière pivotante à l'organe de commande rotatif (14) de sorte que la rotation de ce dernier bande les ressorts (24) de transmission d'effort tandis que les coutres (5) sont bloqués contre la rotation par le contact avec la terre.
PCT/GB1986/000407 1985-07-25 1986-07-15 Organe de commande pour coutres de semoirs agricoles WO1987000392A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB08518863A GB2177885A (en) 1985-07-25 1985-07-25 Agricultural drills
GB8518863850725 1985-07-25

Publications (1)

Publication Number Publication Date
WO1987000392A1 true WO1987000392A1 (fr) 1987-01-29

Family

ID=10582881

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/GB1986/000407 WO1987000392A1 (fr) 1985-07-25 1986-07-15 Organe de commande pour coutres de semoirs agricoles

Country Status (4)

Country Link
AU (1) AU6137586A (fr)
GB (1) GB2177885A (fr)
WO (1) WO1987000392A1 (fr)
ZA (1) ZA865529B (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0728407A1 (fr) * 1995-02-22 1996-08-28 Maasland N.V. Semoir
CN109392339A (zh) * 2018-12-17 2019-03-01 贵州大学 一种新型农业犁耙

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2203923A (en) * 1987-03-28 1988-11-02 Edward Donald Smallwood Seed drill
FR2861951B1 (fr) * 2003-11-06 2006-12-29 Kuhn Nodet Sa Semoir comportant un dispositif de reglage permettant de limiter le debattement de l'ensemble des socs vers le bas
DE102004043565A1 (de) * 2004-09-09 2006-03-30 Amazonen-Werke H. Dreyer Gmbh & Co. Kg Sämaschine
CN104718847B (zh) * 2015-04-10 2016-06-29 甘肃农业大学 一种小颗粒型免耕及膜上精准播种机

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH186760A (de) * 1936-03-10 1936-10-15 Aebi & Co A G Vorrichtung zur Regulierung des Tiefganges der Schare von Sämaschinen.
FR2058671A5 (fr) * 1969-09-22 1971-05-28 Fenet Ets
FR2201613A5 (fr) * 1972-10-03 1974-04-26 Junnilia Lauri
FR2446053A1 (fr) * 1979-01-15 1980-08-08 Amazonen Werke Dreyer H Semoir mecanique
GB2077081A (en) * 1980-06-05 1981-12-16 Globus A S Seed and fertilizer distributor
DE3117536A1 (de) * 1981-05-04 1982-11-18 Franz 8623 Staffelstein Kirchberger Saescharanordnung fuer drillmaschinen oder gdl.
DE3309013A1 (de) * 1982-03-24 1983-09-29 Veb Kombinat Fortschritt Landmaschinen Neustadt In Sachsen, Ddr 8355 Neustadt Saemaschine fuer reihensaat

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2104364B (en) * 1981-08-22 1985-02-06 Massey Ferguson Perkins Ltd Seed drills
DE3226659C2 (de) * 1982-07-16 1985-10-24 Amazonen-Werke H. Dreyer Gmbh & Co Kg, 4507 Hasbergen Drillmaschine
DE3321816C2 (de) * 1983-06-16 1986-09-25 Amazonen-Werke H. Dreyer Gmbh & Co Kg, 4507 Hasbergen Drillmaschine

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH186760A (de) * 1936-03-10 1936-10-15 Aebi & Co A G Vorrichtung zur Regulierung des Tiefganges der Schare von Sämaschinen.
FR2058671A5 (fr) * 1969-09-22 1971-05-28 Fenet Ets
FR2201613A5 (fr) * 1972-10-03 1974-04-26 Junnilia Lauri
FR2446053A1 (fr) * 1979-01-15 1980-08-08 Amazonen Werke Dreyer H Semoir mecanique
GB2077081A (en) * 1980-06-05 1981-12-16 Globus A S Seed and fertilizer distributor
DE3117536A1 (de) * 1981-05-04 1982-11-18 Franz 8623 Staffelstein Kirchberger Saescharanordnung fuer drillmaschinen oder gdl.
DE3309013A1 (de) * 1982-03-24 1983-09-29 Veb Kombinat Fortschritt Landmaschinen Neustadt In Sachsen, Ddr 8355 Neustadt Saemaschine fuer reihensaat

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0728407A1 (fr) * 1995-02-22 1996-08-28 Maasland N.V. Semoir
NL9500335A (nl) * 1995-02-22 1996-10-01 Maasland Nv Zaaimachine.
CN109392339A (zh) * 2018-12-17 2019-03-01 贵州大学 一种新型农业犁耙

Also Published As

Publication number Publication date
GB2177885A (en) 1987-02-04
AU6137586A (en) 1987-02-10
ZA865529B (en) 1988-03-30
GB8518863D0 (en) 1985-08-29

Similar Documents

Publication Publication Date Title
US4423788A (en) Agricultural furrow forming apparatus depth control
US4430952A (en) Planter gauge wheels with adjustable equalizer mechanism
US4273057A (en) Planting apparatus for a grain drill
US4374500A (en) Seed planter depth control
US4596200A (en) Row crop planter
US5697455A (en) Adjustment mechanism for row unit accessory
US20110232552A1 (en) Single-Pass, Double-Shoot Opener For An Agricultural Implement
AU733357B2 (en) Farm land coulter assembly
US8479669B2 (en) Depth control arrangements for a rotary row cleaner for a planter
NZ270442A (en) Tined seeding assembly with a seeding tube that extends into a slot formed by a tine, a closing tool forward of the tube and partly closing the slot during seeding and a height adjusting ground engager
US7104206B2 (en) Agricultural apparatus
WO1987000392A1 (fr) Organe de commande pour coutres de semoirs agricoles
US4373456A (en) Agricultural furrow forming apparatus depth control
US4525988A (en) Combine planter implement
US7216596B2 (en) Agricultural apparatus
US2155443A (en) Planter
US2698114A (en) Planter valve
US4493272A (en) Agricultural planter with sled frame, vacuum dispensing and ground drive
US4831945A (en) Opener assembly with depth gauging from a press wheel
US3060873A (en) Planter adjusting means for regulating the discharge of seed and fertilizer
EP0352865B1 (fr) Appareil pour ouvrir des sillons dans le sol
US2687238A (en) Fertilizer attachment
US6886641B2 (en) Agricultural apparatus
US2120331A (en) Uniform depth seeder
JP7164838B2 (ja) 移植機

Legal Events

Date Code Title Description
AK Designated states

Kind code of ref document: A1

Designated state(s): AU BR US

AL Designated countries for regional patents

Kind code of ref document: A1

Designated state(s): AT BE CH DE FR GB IT LU NL SE

WA Withdrawal of international application