US3672453A - Machine for digging soil - Google Patents

Machine for digging soil Download PDF

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Publication number
US3672453A
US3672453A US9688A US3672453DA US3672453A US 3672453 A US3672453 A US 3672453A US 9688 A US9688 A US 9688A US 3672453D A US3672453D A US 3672453DA US 3672453 A US3672453 A US 3672453A
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US
United States
Prior art keywords
rotor
frame
machine
spades
digging
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 - Lifetime
Application number
US9688A
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English (en)
Inventor
Herbert Vissers
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.)
LANDBOUWERKTUIGEN EN MAS FAB H
Original Assignee
LANDBOUWERKTUIGEN EN MAS FAB H
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Application filed by LANDBOUWERKTUIGEN EN MAS FAB H filed Critical LANDBOUWERKTUIGEN EN MAS FAB H
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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
    • A01B9/00—Ploughs with rotary driven tools
    • A01B9/003—Ploughs with rotary driven tools with tools on horizontal shaft transverse to direction of travel

Definitions

  • ABSTRACT A machine for digging soil is provided, comprising a rotor, [30] Forelgn Application Priority Data spades mounted tiltably on said rotor and retaining members Feb. 13, 1969 Netherlands: ..6902245 which prevent dug-up clods of being moved further around with said spades instead of being moved to the ground [52] US. Cl ..172/39, 172/71, 172/94,
  • the invention relates to a machine for digging soil, comprising a travelling frame, a driven rotor mounted on said frame for rotation around a digging axis, and a number of circular sets of spades, each circular set of spades comprising a retaining member retaining clods dug up by the spades of said circular set, each spade being mounted on said rotor for tilting about a tilting axis transverse of said digging axis and being coupled to a guide member guided by a cam member so shaped that said spade tilts as it rises, said cam member being rotatably mounted concentric with said rotor on said frame and being connected thereto in the operational position by means of a connection comprising a connecting element which is disposed when such connection is
  • the cam member is connected to the frame by means of the aforementioned connection, so that the cam member can be uncoupled from the frame and then co-rotate with the rotor when the connection is overloaded.
  • the spades then pass the retaining members which, in the prior art machine, are attached with provision for movement in such a way that they move out of the way of the spades, against the force of a spring, when the spades strike against them. Nevertheless, the shock with which the spades strike against the retaining members may be so great that the spades and/or the machine parts coupled thereto are nevertheless damaged.
  • the invention has the object to provide a machine of the kind specified and to prevent damage of retaining members, spades and/or machine parts coupled thereto.
  • the invention provides a machine of the kind specified in which the spades and retaining members have a shape such that in every tilted position, the spades can pass between the retaining members disposed adjacent one another.
  • the invention further has the object to provide a machine for digging the soil to an uniform ground surface.
  • the invention provides a machine having on its rear a soil guide for guiding dug-up clods to their places in the ground surface.
  • FIG. 1 is a plan view of a preferred embodiment of the machine according to the invention.
  • FIG. 2 is a side elevation of the machine shown in FIG. 1, showing only one circular set ofspades;
  • FIG. 3 is a section, taken on the line IlI-III in FIG. 1;
  • FIG. 4 is a section, to an enlarged scale, taken on the line lV-IV in FIG. 1;
  • FIG. 5 is a section, taken on the line VV in FIG. 4;
  • FIG. 6 shows the movement of the cam of a cam member in a prior art machine
  • FIG. 7 shows the movement, corresponding to FIG. 6, in the machine illustrated in FIGS. l-5;
  • FIG. 8 shows the movement, corresponding to FIG. 6, in a variant embodiment of the machine according to the invention.
  • FIG. 9 shows the movement, corresponding to FIG. 6, in a second variant of the machine according to the invention.
  • the machine comprises a frame 1 suspended by means of suspension rods 3 from a tractor (not shown).
  • the machine also has a driven tubular rotor 5 which is mounted for rotation in the frame I around a digging axis 4 and to which six circular sets 7 of three spades 6 each are attached.
  • a camshaft 8 stationary during operation is mounted to pivot around the digging axis 4.
  • the camshaft 8 has a cam member 9 for each circular set 7.
  • Each spade 6 is mounted on the rotor 5, via a pin 10 hearing a pinion 12, to tilt around a tilting axis 11 transverse of the digging axis 4.
  • the pinion 12 engages in a rack 13 mounted with provision for displacement axially of the digging axis 4 in the rotor 5.
  • the rack 13 bears a guide member 14 which engages a groove 15 matching a cam 16 in the cam member 9.
  • the position of plane 0 of the camshaft 8 can be adjusted in relation to the vertical b through an angle a of, for instance, a maximum of 10 to -10", by a disc 18 coupled to the camshaft 8 engaging an adjusting member 19 adjustably disposed on a rod 20 by means of a screw 21.
  • the rod 20 can be displaced into the frame 1 against the force of a compression spring 22. Whenever, due to abnormal circumstances, the spades 6 exert too much torque on the camshaft 8, the camshaft 8 together with the disc 18 rotates against the action of the compression spring 22, so that the camshaft 8 co-rotates with the rotor 5.
  • the camshaft 8 is so arranged that spade tilting around the tilting axis 11 starts when the spade 6 passes the plane c.
  • the angular displacement of the rotor is ofiset from the plane 0 in FIGS. 6-9, the spade tilting angle k 0.
  • Cam 17 (cf. FIG. 6) of the prior art machine is sinusoidal, while the spades tilt through an angle of In contrast, the cam 16 in the machine illustrated in FIGS. 1-5 is not sinusoidal, but as shown in FIG. 7.
  • an an gular displacement cd of the rotor of 70 spade tilting is very slightly accelerated, and during an angular displacement de of the rotor of 20 it is strongly decelerated.
  • angular displacement fg of the rotor the spade 6 is tilted back into its starting position, in which it remains until the following tilting, again beginning at 0.
  • the spade tilting angle is 92 (instead of 120), and this proved to be adequate. In this way the required acceleration is further reduced during the angular displacement cd of the rotor.
  • the cam member has the cam 23 of FIG. 8, which is so shaped that during angular displacement st of the rotor of 15 the acceleration is small, for instance increases gradually, so that the force required for acceleration is still low at that period, where the force on the spade for loosening the clod from the ground is great.
  • Cam 23 is so constructed that acceleration during angular displacement tu of the rotor is constant, the tilting movement is uniform during the angular displacement uv of the rotor, and the tilting is considerably decelerated during angular displacement vw of the rotor. During angular displacement xy of the rotor the spade tilts back again.
  • the preferred cam 24 differs from cam 23 by the feature that with the spade tilting concerning cam 24 is suddenly decelerated. To this end, cam 24 is completely straight over angular displacement nj of the rotor until the maximum tilting angle of 92 is reached, when the tilting suddenly terminates.
  • a machine having a cam like this can reach a speed of 53 rpm. and a digging speed (arrow 2) of 3 km per hour with a cam of this kind, a working depth of 30 cm and a rotor diameter of l 10 cm.
  • the capacity of the machine according to the invention is substantially greater than that of the prior art machine.
  • the spades 6 mainly consist of a narrow spade blade 25, a bowed member 26 engaging said blade 25 outside the center thereof.
  • Each circular set 7 has a matching retaining member 27 so bent as to extend at the inner side of the passing spade blade 25.
  • the arrangement of the retaining members 27 on carrier 28, the shape of the retaining members 27 and the shape of the spades 6 are such (cf. the drawings) that in each of their tilted positions, the spades 6 can pass the retaining members 27. If the spade tilting mechanism becomes accidentally locked, the camshaft 8 co-rotates with the rotor 5, and the spades 6 remain in any tilted position, the spades 6 do not knock against the retaining members 27. The latter can therefore be coupled to the frame 1 in a fixed position, without the interposition of springs or similar means yielding on overloading.
  • the carrier 28 consists of a shaft which is pivotably mounted in the frame 1 and has an arm 29 which can be adjusted to various pivoted positions on the frame 1 by means of a screw 30.
  • the pivoted positions are selected in dependence on the position of the camshaft 8 adjusted by means of adjusting member 19.
  • a soil guide 31 Disposed on the rear side of the machine is a soil guide 31 mainly consisting of a shaft 32 pivotably mounted in the frame 1, and a number, for instance two, of guide rods 38 for each circular set 7.
  • the shaft 32 can be adjusted to various positions on the frame 1 by means of an attached arm 34 and ascrew 35. The adjusted position is so chosen that the soil guide 3] guides the dug-up clods hurled backwards by the spades 6 in their flight to the place for which they are intended.
  • a machine for digging soil which machine is of the type comprising a travelling frame, a driven rotor mounted on said frame for rotation about a digging axis, a plurality of sets of spades disposed in longitudinally spaced relation with respect to said digging axis, each set comprising a plurality of arms having inner ends disposed in circumferentially spaced relation and each being connected to said rotor about a tilting axis disposed in a plane transverse to said digging axis, each spade also including a blade fixed to the free end of its associated arm, each blade presenting a cutting edge and an inner face for supporting a clod sliced loose by said cutting edge, cam means concentric with said rotor and normally held in relatively fixed relation to said frame for tilting each spade as it sweeps through a selected are about said digging axis, a retaining member for each set of spades, each said retaining member being fixed to said frame and including a portion disposed inwardly of and in substantially opposed relation to the inner face of each blade as
  • each arm is of curvilinear form having a free end portion which lies nearly tangential with respect to said selected are;
  • each said blade being fixed to a free end portion of an associated arm so as to lie also in said nearly tangential relation, and each blade being of selected transverse width;
  • said retaining members being spaced apart by amounts greater than said selected transverse width whereby said blades may clear same when said cam means rotates with said rotor as aforesaid.
  • a digging machine as defined in claim 1 including a soil guide fixed to said frame for guiding dug-up clods, said soil guide being fixed to said frame in trailing relation to said retaining members.
  • the assignor's name is Landbouwwerktuigenen Machinefabriek H. Vissers N.V.

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  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Soil Sciences (AREA)
  • Environmental Sciences (AREA)
  • Soil Working Implements (AREA)
US9688A 1969-02-13 1970-02-10 Machine for digging soil Expired - Lifetime US3672453A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL6902245A NL6902245A (de) 1969-02-13 1969-02-13

Publications (1)

Publication Number Publication Date
US3672453A true US3672453A (en) 1972-06-27

Family

ID=19806139

Family Applications (1)

Application Number Title Priority Date Filing Date
US9688A Expired - Lifetime US3672453A (en) 1969-02-13 1970-02-10 Machine for digging soil

Country Status (10)

Country Link
US (1) US3672453A (de)
AT (1) AT295903B (de)
BE (1) BE745843A (de)
CA (1) CA917988A (de)
DE (3) DE2064887A1 (de)
ES (1) ES376733A1 (de)
FR (1) FR2031404B1 (de)
GB (1) GB1292734A (de)
NL (1) NL6902245A (de)
ZA (1) ZA70938B (de)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112470558A (zh) * 2020-12-03 2021-03-12 洛阳福格森机械装备有限公司 一种旋耕机用旋耕刀轴支架

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3066967D1 (en) * 1979-08-29 1984-04-19 Jules Durieux Motorized spade
AT366534B (de) * 1980-07-16 1982-04-26 Steyr Daimler Puch Ag Bodenbearbeitungsgeraet

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1662088A (en) * 1926-10-25 1928-03-13 Raussendorff Hans Von Tiller
US3012616A (en) * 1957-08-19 1961-12-12 Ontwikkelingmij Multinorm Nv Machine for cultivating the soil
US3164212A (en) * 1963-02-25 1965-01-05 Landbouwwerktuigen & Maschf Machine for cultivating the soil
US3331448A (en) * 1963-10-24 1967-07-18 Landbouwwerktuigen & Maschf Machines for cultivating the soil

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1662088A (en) * 1926-10-25 1928-03-13 Raussendorff Hans Von Tiller
US3012616A (en) * 1957-08-19 1961-12-12 Ontwikkelingmij Multinorm Nv Machine for cultivating the soil
US3164212A (en) * 1963-02-25 1965-01-05 Landbouwwerktuigen & Maschf Machine for cultivating the soil
US3331448A (en) * 1963-10-24 1967-07-18 Landbouwwerktuigen & Maschf Machines for cultivating the soil

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112470558A (zh) * 2020-12-03 2021-03-12 洛阳福格森机械装备有限公司 一种旋耕机用旋耕刀轴支架

Also Published As

Publication number Publication date
AT295903B (de) 1972-01-25
FR2031404A1 (de) 1970-11-20
NL6902245A (de) 1970-08-17
ES376733A1 (es) 1972-10-16
DE2005999A1 (de) 1970-08-27
BE745843A (nl) 1970-07-16
FR2031404B1 (de) 1974-03-01
DE7004560U (de) 1973-03-08
CA917988A (en) 1973-01-02
ZA70938B (en) 1971-04-28
GB1292734A (en) 1972-10-11
DE2064887A1 (de) 1971-10-28

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