EP2672801A1 - A dual-purpose agricultural machine - Google Patents

A dual-purpose agricultural machine

Info

Publication number
EP2672801A1
EP2672801A1 EP12704025.1A EP12704025A EP2672801A1 EP 2672801 A1 EP2672801 A1 EP 2672801A1 EP 12704025 A EP12704025 A EP 12704025A EP 2672801 A1 EP2672801 A1 EP 2672801A1
Authority
EP
European Patent Office
Prior art keywords
tooth
fact
agricultural
fertilizer
agricultural machine
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.)
Withdrawn
Application number
EP12704025.1A
Other languages
German (de)
French (fr)
Inventor
Antonio PETTIROSSI
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.)
Dondi SpA
Original Assignee
Dondi SpA
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 Dondi SpA filed Critical Dondi SpA
Publication of EP2672801A1 publication Critical patent/EP2672801A1/en
Withdrawn legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R1/00—Details of transducers, loudspeakers or microphones
    • H04R1/08—Mouthpieces; Microphones; Attachments therefor
    • 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
    • A01B13/00—Ploughs or like machines for special purposes ; Ditch diggers, trench ploughs, forestry ploughs, ploughs for land or marsh reclamation
    • A01B13/08—Ploughs or like machines for special purposes ; Ditch diggers, trench ploughs, forestry ploughs, ploughs for land or marsh reclamation for working subsoil
    • 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
    • A01B49/00—Combined machines
    • A01B49/04—Combinations of soil-working tools with non-soil-working tools, e.g. planting tools
    • A01B49/06—Combinations of soil-working tools with non-soil-working tools, e.g. planting tools for sowing or fertilising
    • 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
    • A01B61/00—Devices for, or parts of, agricultural machines or implements for preventing overstrain
    • A01B61/04—Devices for, or parts of, agricultural machines or implements for preventing overstrain of the connection between tools and carrier beam or frame
    • A01B61/042—Devices for, or parts of, agricultural machines or implements for preventing overstrain of the connection between tools and carrier beam or frame with shearing devices
    • 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
    • A01C7/206—Seed pipes

Definitions

  • the present patent application relates to an agricultural bivalent machine, that is a machine adapted to operate as subsoiler or fertilizer spreader.
  • subsoiler defines a machine adapted to be hauled or supported on the back of a tractor to plow soil surface along a series of closely-spaced parallel directions.
  • subsoilers comprise a frame acting as support for a regularly spaced series of teeth with forward inclination according to the direction of travel of the tractor, each tooth ending in lower position with a sort of shovel with sharp borders, adapted to penetrate soil and raise it in order to cut a furrow.
  • Each tooth is fixed to the frame by means of a pivoting pin with horizontal axis that hinges the top of the tooth to a sturdy fixing bracket obtained on said frame.
  • Said fixing bracket is provided with tooth-stopping device, in such manner to prevent its oscillation around said pivoting pin.
  • Said stopping device is of preset-breakage type, meaning that it uses a constraint element adapted to break beyond a preset stress value, in such manner that, in case of anomalous stress, the tooth can recover its freedom of oscillation around its pivoting pin.
  • fertilizer spreader Another agricultural machine, known as “fertilizer spreader", is used to make a preset amount of fertilizer penetrate under the soil surface.
  • said fertilizer spreaders comprise a frame provided with attachment means for the back of a tractor; said frame acts as support for the fertilizer hopper and for one or more spreading teeth, each of them practically consisting in a shaped arm, with forward inclination according to the direction of travel of the tractor, which ends in lower position with a short of shovel, with sharp edges to favor penetration in soil.
  • Each tooth is associated with a feed pipe situated on the back of the tooth and shaped in such a way to follow its profile, so that the impact with soil is exclusively borne by the shaped arm, whereas the feed pipe is only adapted to convey the fertilizer from the hopper to the lower outlet mouth, situated exactly on the back of the shovel.
  • the present invention originates from the examination of these two types of agricultural machines that, in spite of having a different structural configuration and operating purpose, are both characterized by the presence of one or more sturdy teeth, with forward inclination according to the direction of travel of the tractor, and ending at the base with a sort of shovel with sharp edges.
  • the agricultural machine of the invention has been devised from the observation of these common features, originating from the intelligent combination of the two types of agricultural machines of known type, as illustrated above.
  • the present invention consists in an evolution of an ordinary subsoiler with the integration of components from an ordinary fertilizer spreader, in such manner to realize a new, original agricultural bivalent machine to be used both to plow soil and fertilize subsoil.
  • the peculiarity of the agricultural bivalent machine according to the invention consists in the special design of the fertilizer feed pipe associated with each tooth of the subsoiler, being aware that, in case of a violent shock with the soil, said tooth must be able to oscillate freely around its pivoting pin to the frame.
  • the fertilizer feed pipe is made of two sections, a first upper section fixed to the fixing bracket of the tooth of the subsoiler, and a second lower section fixed to the tooth of the subsoiler and ending with a fertilizer outlet opening situated exactly on the back of the shovel of the tooth.
  • the outlet mouth of the first section is interfaced and engaged against the corresponding inlet mouth of the second lower section.
  • FIG. 1 is an axonometric view of the agricultural bivalent machine of the invention
  • FIG. 2 is a diagrammatic side view of the agricultural machine of the invention, showing the fertilizer flow in case the machine is temporarily use as fertilizer spreader;
  • - Fig. 3 is an axonometric view of one of the teeth of the agricultural machine of the invention, in idle and working position;
  • - Fig. 4 is a side view of one of the teeth of the agricultural machine of the invention, in idle and working position;
  • Fig. 5 is the view of Fig. 4 according to direction V-V ;
  • FIG. 6 is a view of one of the teeth of the machine according to the invention, in backward overturned position further to the actuation of the stopping device.
  • the agricultural machine of the present invention can be considered as an evolution of an ordinary subsoiler. Therefore the following description will be brief for what regards said subsoiler, which has no innovative features, whereas it will be long and detailed for what regards the structural parts that have been added in order to use an ordinary subsoiler also as fertilizer spreader.
  • the agricultural bivalent machine of the invention comprises an ordinary subsoiler (R), with teeth associated with fertilizer feed pipes fed from a hopper (TR) installed on board the frame (T) of the subsoiler.
  • R subsoiler
  • TR hopper
  • T frame
  • the subsoiler (R) comprises a frame (T) acting as support for a regularly spaced series of teeth (1 ) with forward inclination according to the direction of travel of the tractor, each of them ending in lower position with a sort of shovel (2) with sharp edges.
  • Each tooth (1 ) is fixed to the frame (T) by means of a pivoting pin (3) with horizontal axis, which hinges the top (1 a) of the tooth (1 ) to a sturdy fixing bracket (4) that is an integral part of said frame (T).
  • Said fixing bracket (4) is provided with a stopping device (5) of the tooth
  • Said preset-breakage stopping device (5) consists in a bolt (5a) that is inserted into a hole (1 b) obtained on the top (1 a) of the tooth (1 ) and anchored to the bracket (4).
  • the agricultural bivalent machine according to the invention also comprises a fertilizer hopper (TR) mounted on said frame (T) and a series of fertilizer feed pipes (6) associated with said teeth (1 ).
  • each fertilizer feed pipe (6) is obtained in two sections, a first upper section (6a) fixed to the bracket (4) and a second lower section (6b) fixed to the tooth (1 ).
  • the first upper section (6a) is fixed on the back of the bracket (4) by means of a symmetrical pair of bolts (7) inserted through anchoring flanges that protrude on the two sides of the first section (6a).
  • the second lower section (6b) is fixed by means of bolts (7) inserted on anchoring flanges on the back of the tooth (1 ) in correspondence of two points, the first point (P1 ) being situated at the height of the top (1 a) of the tooth, and the second point (P2) being situated at approximately half of the length of the tooth (1 ).
  • Said lower section (6b) is shaped in such manner to closely follow the profile of the back edge of the tooth (1 ), which basically acts as protection screen for the feed pipe (6).
  • the second section (6b) ends in lower position with an outlet mouth (8) situated immediately below said point (P2) and directed backwards with respect to the direction of travel of the tractor used to haul the agricultural bivalent machine of the invention.
  • outlet mouth (8) is shaped as a trumpet, and is laterally closed by walls (8a) that prevent soil from penetrating and ascending inside the fertilizer feed pipe (6).
  • each feed pipe (6) is connected to the hopper (TR) of the fertilizer (C) by means of flexible hoses (TF) that are inserted on one hand into outlet mouths (9) provided on the bottom of the hopper (TR), whereas on the other hand they are inserted into the inlet mouth (10) situated at the top of each first upper section (6a) of the feed pipes (6).
  • TF flexible hoses
  • the outlet mouth (1 1 ) of the first upper section (6a) is interfaced and engaged against the corresponding inlet mouth (12) of the second lower section (6b), so that - during the normal operation of the machine of the invention as fertilizer spreader - fertilizer (C) descends from the hopper (TR) through the flexible hoses (TF) until it is conveyed into each feed pipe (6), from which it is delivered through the outlet mouth (8) situated on the bottom of the furrow made by the tooth (1 ).
  • the association of feed pipes (6) to each tooth (1 ) of the subsoiler (R) does not impair the possibility for the tooth (1 ) to oscillate around its pivoting pin (3) in case of accidental breakage of said bolt (5a).

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Soil Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Environmental Sciences (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Fertilizing (AREA)

Abstract

The present invention relates to a dual-purpose agricultural machine comprising a subsoiler (R) of known type and a fertilizer hopper (TR) from the bottom of which a series of flexible hoses (TF) branch off to convey fertilizer to a series of feed pipes associated with the teeth (1) of the subsoiler and made of two sections, of which one is fixed and one is adapted to oscillate around the same pivoting pin (3) used to hinge the tooth (1).

Description

Description
A DUAL - PURPOSE AGRICULTURAL MACHINE
The present patent application relates to an agricultural bivalent machine, that is a machine adapted to operate as subsoiler or fertilizer spreader. As it is known by experts of agricultural machines, the term "subsoiler" defines a machine adapted to be hauled or supported on the back of a tractor to plow soil surface along a series of closely-spaced parallel directions.
To that end, subsoilers comprise a frame acting as support for a regularly spaced series of teeth with forward inclination according to the direction of travel of the tractor, each tooth ending in lower position with a sort of shovel with sharp borders, adapted to penetrate soil and raise it in order to cut a furrow.
Each tooth is fixed to the frame by means of a pivoting pin with horizontal axis that hinges the top of the tooth to a sturdy fixing bracket obtained on said frame.
Said fixing bracket is provided with tooth-stopping device, in such manner to prevent its oscillation around said pivoting pin.
Said stopping device, however, is of preset-breakage type, meaning that it uses a constraint element adapted to break beyond a preset stress value, in such manner that, in case of anomalous stress, the tooth can recover its freedom of oscillation around its pivoting pin.
Such a measure is taken to prevent the deformation, if not breakage, of the tooth, in the unfortunate case that, when working the soil, the shovel interferes with a large stone or any other type of obstacle that cannot be removed by the simple impact with the plow shovel.
In such a dangerous situation, the stress originated from said violent impact will cause the failure of said preset-breakage stopping device, and the tooth is overturned backwards with respect to the direction of travel of the tractor, without opposing any resistance to the shock that would otherwise impair the integrity of the tooth or the fixing bracket.
Another agricultural machine, known as "fertilizer spreader", is used to make a preset amount of fertilizer penetrate under the soil surface.
According to their standard configuration, said fertilizer spreaders comprise a frame provided with attachment means for the back of a tractor; said frame acts as support for the fertilizer hopper and for one or more spreading teeth, each of them practically consisting in a shaped arm, with forward inclination according to the direction of travel of the tractor, which ends in lower position with a short of shovel, with sharp edges to favor penetration in soil.
Each tooth is associated with a feed pipe situated on the back of the tooth and shaped in such a way to follow its profile, so that the impact with soil is exclusively borne by the shaped arm, whereas the feed pipe is only adapted to convey the fertilizer from the hopper to the lower outlet mouth, situated exactly on the back of the shovel.
The present invention originates from the examination of these two types of agricultural machines that, in spite of having a different structural configuration and operating purpose, are both characterized by the presence of one or more sturdy teeth, with forward inclination according to the direction of travel of the tractor, and ending at the base with a sort of shovel with sharp edges.
The agricultural machine of the invention has been devised from the observation of these common features, originating from the intelligent combination of the two types of agricultural machines of known type, as illustrated above.
In other words, the present invention consists in an evolution of an ordinary subsoiler with the integration of components from an ordinary fertilizer spreader, in such manner to realize a new, original agricultural bivalent machine to be used both to plow soil and fertilize subsoil.
The peculiarity of the agricultural bivalent machine according to the invention consists in the special design of the fertilizer feed pipe associated with each tooth of the subsoiler, being aware that, in case of a violent shock with the soil, said tooth must be able to oscillate freely around its pivoting pin to the frame.
To that end, the fertilizer feed pipe is made of two sections, a first upper section fixed to the fixing bracket of the tooth of the subsoiler, and a second lower section fixed to the tooth of the subsoiler and ending with a fertilizer outlet opening situated exactly on the back of the shovel of the tooth.
The outlet mouth of the first section is interfaced and engaged against the corresponding inlet mouth of the second lower section.
Moreover, attention must be drawn on the fact that said design of the feed pipe has also affected the shape of said first and second section, which were given a suitable profile, as well as the shape of the mouths interfaced of the upper and lower sections.
For explanatory reasons the description of the agricultural machine of the according to the present invention continues with reference to the attached drawings, which only have illustrative, not limiting value, wherein:
- Fig. 1 is an axonometric view of the agricultural bivalent machine of the invention;
- Fig. 2 is a diagrammatic side view of the agricultural machine of the invention, showing the fertilizer flow in case the machine is temporarily use as fertilizer spreader;
- Fig. 3 is an axonometric view of one of the teeth of the agricultural machine of the invention, in idle and working position;
- Fig. 4 is a side view of one of the teeth of the agricultural machine of the invention, in idle and working position;
- Fig. 5 is the view of Fig. 4 according to direction V-V ;
- Fig. 6 is a view of one of the teeth of the machine according to the invention, in backward overturned position further to the actuation of the stopping device. As mentioned above, the agricultural machine of the present invention can be considered as an evolution of an ordinary subsoiler. Therefore the following description will be brief for what regards said subsoiler, which has no innovative features, whereas it will be long and detailed for what regards the structural parts that have been added in order to use an ordinary subsoiler also as fertilizer spreader.
Referring to Fig. 1 , the agricultural bivalent machine of the invention comprises an ordinary subsoiler (R), with teeth associated with fertilizer feed pipes fed from a hopper (TR) installed on board the frame (T) of the subsoiler.
The subsoiler (R) comprises a frame (T) acting as support for a regularly spaced series of teeth (1 ) with forward inclination according to the direction of travel of the tractor, each of them ending in lower position with a sort of shovel (2) with sharp edges.
Each tooth (1 ) is fixed to the frame (T) by means of a pivoting pin (3) with horizontal axis, which hinges the top (1 a) of the tooth (1 ) to a sturdy fixing bracket (4) that is an integral part of said frame (T).
Said fixing bracket (4) is provided with a stopping device (5) of the tooth
(1 ) of preset-breakage type, meaning that it uses a constraint element adapted to break beyond a preset stress value, in such manner that, in case of anomalous stress, the tooth (1 ) can recover its freedom of oscillation around its pivoting pin (3).
Said preset-breakage stopping device (5) consists in a bolt (5a) that is inserted into a hole (1 b) obtained on the top (1 a) of the tooth (1 ) and anchored to the bracket (4).
The agricultural bivalent machine according to the invention also comprises a fertilizer hopper (TR) mounted on said frame (T) and a series of fertilizer feed pipes (6) associated with said teeth (1 ).
Referring to Figs. 3, 4 and 5, it must be noted that each fertilizer feed pipe (6) is obtained in two sections, a first upper section (6a) fixed to the bracket (4) and a second lower section (6b) fixed to the tooth (1 ). The first upper section (6a) is fixed on the back of the bracket (4) by means of a symmetrical pair of bolts (7) inserted through anchoring flanges that protrude on the two sides of the first section (6a).
The second lower section (6b) is fixed by means of bolts (7) inserted on anchoring flanges on the back of the tooth (1 ) in correspondence of two points, the first point (P1 ) being situated at the height of the top (1 a) of the tooth, and the second point (P2) being situated at approximately half of the length of the tooth (1 ).
Said lower section (6b) is shaped in such manner to closely follow the profile of the back edge of the tooth (1 ), which basically acts as protection screen for the feed pipe (6).
The second section (6b) ends in lower position with an outlet mouth (8) situated immediately below said point (P2) and directed backwards with respect to the direction of travel of the tractor used to haul the agricultural bivalent machine of the invention.
Moreover, it must be noted that the outlet mouth (8) is shaped as a trumpet, and is laterally closed by walls (8a) that prevent soil from penetrating and ascending inside the fertilizer feed pipe (6).
As shown in the diagrammatic view of Fig. 2, each feed pipe (6) is connected to the hopper (TR) of the fertilizer (C) by means of flexible hoses (TF) that are inserted on one hand into outlet mouths (9) provided on the bottom of the hopper (TR), whereas on the other hand they are inserted into the inlet mouth (10) situated at the top of each first upper section (6a) of the feed pipes (6).
The outlet mouth (1 1 ) of the first upper section (6a) is interfaced and engaged against the corresponding inlet mouth (12) of the second lower section (6b), so that - during the normal operation of the machine of the invention as fertilizer spreader - fertilizer (C) descends from the hopper (TR) through the flexible hoses (TF) until it is conveyed into each feed pipe (6), from which it is delivered through the outlet mouth (8) situated on the bottom of the furrow made by the tooth (1 ). As shown in Fig. 6, the association of feed pipes (6) to each tooth (1 ) of the subsoiler (R) does not impair the possibility for the tooth (1 ) to oscillate around its pivoting pin (3) in case of accidental breakage of said bolt (5a).
As shown in Fig. 6, in such a circumstance the first upper section (6a) remains stationary, whereas the second lower section (6b) oscillates together with the tooth (1 ) around the pivoting pin (3).

Claims

Claims
1 ) An agricultural bivalent machine comprising a subsoiler (R) of known type, composed of a frame (T) acting as support for a regularly spaced series of teeth (1 ), each of them being fixed to the frame (T) by means of a pivoting pin (3) with horizontal axis, which hinges the top (1 a) of the tooth (1 ) to a sturdy fixing bracket (4) being an integral part of the frame (T) and provided with a stopping device (5) of the tooth (1 );
a machine characterized by the fact that it also comprises:
- a fertilizer hopper (TR) mounted on said frame (T);
- a series of fertilizer feed pipes (6) associate with said teeth (1 );
- a series of flexible connection hoses (TF) to convey fertilizer (C) from said hopper (TR) to said feed pipes (6).
2) An agricultural machine according to the previous claim, characterized by the fact that each feed pipe (6) ends in lower position with an outlet mouth (8), shaped as a trumpet and directed backwards with respect to the direction of travel of the tractor used to haul the agricultural bivalent machine of the invention.
3) An agricultural machine according to one or more of the previous inventions, characterized by the fact that said stopping device (5) is of preset breakage type and said feed pipes (6) are made of two sections, a first upper section (6a) fixed to the bracket (4) and a second lower section (6b) fixed to the tooth (1 ).
4) An agricultural machine according to the previous claim, characterized by the fact that said second lower section (6b) is fixed by means of bolts (7) inserted on anchoring flanges protruding on the sides, on the back of the tooth (1 ) in correspondence of two points, the first point (P1 ) being situated at the height of the top (1 a) of the tooth, and the second point (P2) being situated at approximately half of the length of the tooth (1 ).
5) An agricultural machine according to one or more of the previous claims, characterized by the fact that said second lower section (6b) is shaped in such manner to closely follow the back edge of the tooth (1 ) and ends in lower position with said outlet mouth (8) situated immediately below said point (P2).
6) An agricultural machine according to one or more of the previous claims, characterized by the fact that said outlet mouth (1 1 ) of the first upper section (6a) is interfaced and engaged against the corresponding inlet mouth (1 2) of the second lower section (6b) and said mouths (1 1 and 12) are shaped in such manner to allow the second section (6b) to oscillate, together with the tooth (1 ), around the pivoting pin (3) in case of accidental breakage of the preset-breakage stopping device (5).
EP12704025.1A 2011-02-07 2012-02-03 A dual-purpose agricultural machine Withdrawn EP2672801A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ITAN20110006 ITAN20110006U1 (en) 2011-02-07 2011-02-07 BIVALENT AGRICULTURAL MACHINE.
PCT/EP2012/051860 WO2012107359A1 (en) 2011-02-07 2012-02-03 A dual-purpose agricultural machine

Publications (1)

Publication Number Publication Date
EP2672801A1 true EP2672801A1 (en) 2013-12-18

Family

ID=43976587

Family Applications (1)

Application Number Title Priority Date Filing Date
EP12704025.1A Withdrawn EP2672801A1 (en) 2011-02-07 2012-02-03 A dual-purpose agricultural machine

Country Status (4)

Country Link
EP (1) EP2672801A1 (en)
IT (1) ITAN20110006U1 (en)
RU (1) RU2012103967A (en)
WO (1) WO2012107359A1 (en)

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RU2694571C2 (en) * 2017-11-21 2019-07-16 Андрей Андреевич Михайлин Suspended chisel universal deep digger

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ES2562577B1 (en) * 2013-07-16 2016-09-13 Rubén NAVARRO VELASCO AGRICULTURAL IMPLEMENT TO INCORPORATE IN ORGANIC OR COMPOSITE SUBSCRIBE FORM IN GROWING LANDS
FR3031868A1 (en) * 2015-01-27 2016-07-29 Claude Maillard DEVICE FOR DECOMPING THE SOIL, USEFUL IN A FOREST ENVIRONMENT
RU2641624C1 (en) * 2017-02-27 2018-01-18 Федеральное государственное бюджетное образовательное учреждение высшего образования "Донской государственный аграрный университет" (ФГБОУ ВО Донской ГАУ) Soil-tilting implement
IT201900023724A1 (en) * 2019-12-12 2021-06-12 Aio Srl AGRICULTURAL FILLING MACHINE
CN114402710B (en) * 2021-12-23 2023-10-24 吉林大学 Vibration subsoiling device capable of adjusting exciting force

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RU2694571C2 (en) * 2017-11-21 2019-07-16 Андрей Андреевич Михайлин Suspended chisel universal deep digger

Also Published As

Publication number Publication date
WO2012107359A1 (en) 2012-08-16
ITAN20110006U1 (en) 2012-08-08
RU2012103967A (en) 2013-08-20

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