CN106561097A - Deep scarification and soil preparation all-in-one machine - Google Patents

Deep scarification and soil preparation all-in-one machine Download PDF

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Publication number
CN106561097A
CN106561097A CN201610953834.3A CN201610953834A CN106561097A CN 106561097 A CN106561097 A CN 106561097A CN 201610953834 A CN201610953834 A CN 201610953834A CN 106561097 A CN106561097 A CN 106561097A
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CN
China
Prior art keywords
rake group
soil
fixed
group
underframe
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.)
Pending
Application number
CN201610953834.3A
Other languages
Chinese (zh)
Inventor
邓衍夫
邓传虎
邓传林
李玉
蒋娜
吴传龙
刘明
王守亚
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.)
ANHUI DENGSHI MACHINERY MANUFACTURING Co Ltd
Original Assignee
ANHUI DENGSHI MACHINERY MANUFACTURING Co Ltd
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 ANHUI DENGSHI MACHINERY MANUFACTURING Co Ltd filed Critical ANHUI DENGSHI MACHINERY MANUFACTURING Co Ltd
Priority to CN201610953834.3A priority Critical patent/CN106561097A/en
Publication of CN106561097A publication Critical patent/CN106561097A/en
Pending legal-status Critical Current

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Classifications

    • AHUMAN NECESSITIES
    • A01AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01BSOIL WORKING IN AGRICULTURE OR FORESTRY; PARTS, DETAILS, OR ACCESSORIES OF AGRICULTURAL MACHINES OR IMPLEMENTS, IN GENERAL
    • A01B49/00Combined machines
    • A01B49/02Combined machines with two or more soil-working tools of different kind
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02PCLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P60/00Technologies relating to agriculture, livestock or agroalimentary industries
    • Y02P60/14Measures for saving energy, e.g. in green houses

Abstract

The invention relates to a deep scarification and soil preparation all-in-one machine, which comprises a deep scarification device and a soil preparation device, wherein the deep scarification device comprises a plough frame, a plurality of plough posts and deep scarification shovels; the plurality of plough posts are welded under the plough frame; the deep scarification shovels are connected with the bottom ends of the plough posts; a positioning plate, a soil loosening plate and a soil loosening cutter of each deep scarification shovel are arranged in a way of mutually forming an angle, so that the soil is enabled to be loosened in the machine advancing process; the soil preparation device comprises a front harrow group and a back harrow group; the front harrow group comprises a plurality of front circular disc harrow blades; the back harrow group comprises a plurality of back circular disc harrow blades; the outer arc surfaces of the plurality of front circular disc harrow blades in the front harrow group face the same direction, and in addition, the circular disc harrow blades of the front harrow group are of sawtooth-shaped structures; and the facing direction of the outer arc surfaces of the plurality of back circular arc harrow blades arranged in the back harrow group is opposite to the facing direction of the outer arc surface of the front circular disc harrow blades. Compared with the prior art, the deep scarification and soil preparation all-in-one machine has the advantages that two groups of circular disc harrows are additionally arranged behind a deep scarification; and through the matching of the deep scarification shovels and the circular disc harrows, the goal of completing whole operation of deep scarification and soil crushing through one-step operation is achieved.

Description

A kind of subsoiling land preparation all-in-one
Technical field
The present invention relates to agricultural machinery technological field, a kind of specifically subsoiling land preparation all-in-one.
Background technology
Soil subsoiling, either abnormity shovel, curved surface shovel or all-dimensional subsoiler etc., all produce large-scale soil during subsoiling Block, it is not broken;So that peasant is not easily accepted by.Light rain in case of under, it is impossible to sow, so that peasant can not be satisfied with.Therefore Peasant has resentment, soil subsoiling work smoothly cannot be carried out.
In prior art, subsoiler does not have soil-crushing function, that is to say, that after the completion of subsoiling work, broken if desired for raking the soil level Soil, it is necessary to operate another rake to complete the purpose of site preparation.During actual job, change machinery and repeat operation and expend Plenty of time and manpower.
The content of the invention
The invention aims to solve the defect that subsoiler in prior art does not have site preparation of raking the soil level, there is provided Yi Zhongshen Loose site preparation all-in-one is solving the above problems.
To achieve these goals, technical scheme is as follows:
A kind of subsoiling land preparation all-in-one, including subsoiling device, site preparation device;Front, site preparation device exists the subsoiling device Afterwards;
The subsoiling device includes plow frame, many plow standards being welded on below the plow frame, and with the plow standard bottom The deep soil loosing shovel of connection;The deep soil loosing shovel includes location-plate, the plate that loosens the soil from top to bottom successively, loosen the soil knife;Location-plate, the plate that loosens the soil, Loosen the soil;
The site preparation device includes bracing frame;Support frame as described above is fixedly connected with the plow frame;Below support frame as described above It is fixed with front rake group and rear rake group;
The front rake group includes front rake group beam, front rake group seat, and is fixed on the front rake group by the front rake group seat Front disc on beam;The excircle of the front disc offers multiple breach and cuts native tooth to be formed;
The rear rake group includes rear rake group beam, rear rake group seat, and fixes rake group in the rear by the rear rake group seat Rear disk blade on beam;
The front rake group and the rear rake include multiple front discs and rear former disk blade respectively;In the front rake group The extrados of multiple front discs is towards same direction;The extrados of the multiple rear disk blades in the rear rake group with it is described Front disc extrados is towards on the contrary.
Preferably, the plow frame includes horizontally disposed mesh font underframe;Many are fixed with the underframe and incline drawing Bar and with it is described inclination pull bar quantity identical vertical rod;Many rod ends are connected by tie-beam;In the middle of the tie-beam Position is fixed with the pin connection seat being connected with traction apparatuss;The inclination pull bar and the vertical rod and the width over side sills direction The body of rod form three-legged structure improving the plow frame intensity.
Preferably, support frame as described above is the mesh font support body being detachably connected with the underframe.
Preferably, below support frame as described above, rake group before being respectively fixed with two groups, rake group after two groups;Harrow before described two groups The front disc intrados of group is oppositely arranged;After described two groups, the rear disk blade extrados of rake group is oppositely arranged.
Preferably, below the underframe, 4 deep soil loosing shovels are fixed with;Shape of 4 deep soil loosing shovels according to " two after the first two " Formula is arranged.
Preferably, the first two in 4 deep soil loosing shovels is arranged in the both sides of the underframe front end, and latter two is arranged in institute State the centre position of underframe rear end.
Preferably, the spacing between 4 deep soil loosing shovels is equal.
Preferably, the angle of angle one-level latter two deep soil loosing shovel of deep soil loosing shovel described in the first two is oppositely arranged.
Preferably, the support frame as described above side corresponding with the underframe is provided with key seat, by bearing pin and the pin Support frame as described above is fixed by the cooperation of seat with the underframe.
Preferably, the front rake group beam and rear rake group beam are fixed on support frame as described above by connecting pole;The connection Post upper end is fixed on support frame as described above by U-shaped screw rod, and bottom is fixed with the front rake group beam or rear rake group beam by bearing.
The present invention compared with prior art, has the advantages that:
The present invention adds two groups of disc harrows after subsoiler, by deep soil loosing shovel and the cooperation of disc harrow, realizes once-through operation, Complete the overall purpose of subsoiling and hack;
The deep soil loosing shovel that the present invention is provided is made up of the location-plate, the plate that loosens the soil that form angle fixation, the knife that loosens the soil, in subsoiling process In, deep soil loosing shovel advance resistance is little, the seam of the Zinc fractions lower arcuate for passing through, then by the broken of follow-up disc harrow, can be quick The soil of arc-shaped slit both sides is crushed, degree of crushing is good;
Two groups of disc harrow in front and back, and front group for toothed disc harrow, the tooth of disc harrow can improve crushing effect, after Group disc harrow is smooth circumferential, can improve whole structure, and the soil surface after making to crush is more smooth;
By pin joint between bracing frame and underframe, can be soft according to soil regime, such as soil property, directly can sow after subsoiling, In order to energy-saving, dismountable site preparation device, such as soil property are hardened, i.e. device site preparation device;It is so designed that, makes the suitable of this all-in-one It is wider with property.
Description of the drawings
Fig. 1 is a kind of main structure diagram of subsoiling land preparation all-in-one of the invention;
Right side structural representations of the Fig. 2 for Fig. 1;
Overlooking the structure diagrams of the Fig. 3 for Fig. 1;
Fig. 4 is the mplifying structure schematic diagram of front rake group;
The mplifying structure schematic diagram of rake group behind Fig. 5 positions;
The mplifying structure schematic diagram of Fig. 6 positions deep soil loosing shovel.
Specific embodiment
To make architectural feature and the effect reached to the present invention have a better understanding and awareness, to preferably Embodiment and accompanying drawing coordinate detailed description, are described as follows:
As shown in Figure 1, Figure 2, shown in Fig. 3, Fig. 6, a kind of subsoiling land preparation all-in-one, including subsoiling device 1, site preparation device 2;It is described Front, site preparation device 2 is rear for subsoiling device 1.
Subsoiling device 1 includes plow frame 11, many plow standards 12 being welded on below plow frame 11, and is connected with 12 bottom of plow standard Deep soil loosing shovel 13;Deep soil loosing shovel 13 includes location-plate 131, the plate 132 that loosens the soil from top to bottom successively, loosen the soil knife 133;Location-plate 131, Loosen the soil plate 132, loosen the soil be between knife 133 angle arrange with ensure advance when soil can be loosened.The present invention is provided Location-plate 131 be one flat plate, its upper end is bolted on plow standard 12, and the plate 132 that loosens the soil is one piece of arc, thereon End is bolted on the lower end of location-plate 131, and the long and thin metal rod member that knife 133 is a square-section that loosens the soil, and It is the level of state by bolt and is fixed on the bottom of the plate 132 that loosens the soil, its front end has blade 1331, for cutting soil.Location-plate 131st, loosen the soil plate 132 narrower face be front inlet side, to reduce advance resistance.Location-plate 131, the plate 132 that loosens the soil, loosen the soil knife 133 Three seamlessly transits to form entirety, and wherein location-plate 131 is formed an angle with 133 shape of knife of loosening the soil.For the spiral shell on deep soil loosing shovel 13 Bolt, nut are in corresponding counterbore, make 13 surfacing of deep soil loosing shovel, reduce resistance when advancing.
Plow frame 11 includes horizontally disposed mesh font underframe 111;Many 112 Hes of inclination pull bar are fixed with underframe 111 With inclination 112 quantity identical vertical rod 113 of pull bar;Many 113 tops of vertical rod are connected by tie-beam 14;In the middle of tie-beam 14 Position is fixed with the pin connection seat 15 being connected with traction apparatuss;Incline pull bar 112 and 111 width of vertical rod 113 and underframe The body of rod form three-legged structure improving 11 intensity of plow frame.
The spacing that the present invention is fixed between 4 deep soil loosing shovels, 13,4 deep soil loosing shovels 13 below underframe 111 is equal, and according to The form arrangement of " two after the first two ".The first two in 4 deep soil loosing shovels 13 is arranged in the both sides of underframe 111, and latter two is arranged in bottom The centre position of frame 111.
The angle of angle one-level latter two deep soil loosing shovel 13 of the first two deep soil loosing shovel 13 is oppositely arranged.
Site preparation device 2 includes bracing frame 21;Bracing frame 21 is the mesh font support body being detachably connected with underframe 111, typically By welding, pin connection, hydraulic jack connection, shaft type connection, rod-type connection etc..If by connecting pin connection, supported Frame 21 is fixed with the connecting side of underframe 111 and is connected key seat 211.
Rake group 22 and rear rake group 23 before being fixed with below bracing frame 21;Front rake group 22 includes front rake group beam 221, front rake group Seat 222, and the front disc 223 on front rake group beam 221 is fixed on by front rake group seat 222;Outside front disc 223 Circumference offers multiple breach and cuts native tooth to be formed.Front rake group 22 and rear rake group 23 are fixed on bracing frame 21 by connecting pole 24 On.The upper end of connecting pole 24 is detachably connected with bracing frame 21, is typically fixed by U-shaped screw rod 2311, bottom and front rake group beam 221 or rear rake group, 23 beam is rotated by bearing and is connected.
Such as Fig. 4, shown in Fig. 5, rake group beam 231, rear rake group seat 232 after rake group 23 includes afterwards, and by rear rake group seat 232 Rear disk blade 233 after being fixed on rake group beam 231;The extrados 2231 of front disc 223 and rear disk blade 233 Extrados 2331 is oppositely arranged.
In order that the scope of operation is wider, the present invention is harrowed after 22, two groups of rake group before being respectively fixed with two groups below bracing frame 21 Group 23;Before two groups, 223 intrados of front disc of rake group 22 is relative, and intrados is that front disc extrados 2231 is contrary Simultaneously (do not mark in figure).After two groups, 233 extrados 2331 of rear disk blade of rake group 23 is relative.Wherein, rake group 22 before two groups In disc harrow cambered surface direction it is consistent with the intrados direction of the deep soil loosing shovel 13 of both sides respectively, the disc harrow arc of rake group 23 after two groups The intrados of face direction Jun Yushen both sides pine shovel is in opposite direction.
Two groups of disc harrow cambered surface directions are different in front and back, and direction is different to cause two groups of disc harrows of before and after to be digged, and soil is big After amplitude is stirred, crush evenly, whole structure is good.
Ultimate principle, principal character and the advantages of the present invention of the present invention has been shown and described above.The technology of the industry The simply present invention of the personnel it should be appreciated that the present invention is not restricted to the described embodiments, described in above-described embodiment and description Principle, without departing from the spirit and scope of the present invention the present invention also have various changes and modifications, these change and Improvement is both fallen within the range of claimed invention.The protection domain of application claims by appending claims and its Equivalent is defined.

Claims (10)

1. a kind of subsoiling land preparation all-in-one, it is characterised in that:Including subsoiling device, site preparation device;The subsoiling device is front, whole Ground device is rear;
The subsoiling device includes plow frame, many plow standards being welded on below the plow frame, and is connected with the plow standard bottom Deep soil loosing shovel;The deep soil loosing shovel includes location-plate, the plate that loosens the soil from top to bottom successively, loosen the soil knife;Location-plate, the plate that loosens the soil, loosen the soil It is in angle to arrange to ensure soil can be loosened when advancing between knife;
The site preparation device includes bracing frame;Support frame as described above is connected with the plow frame;Before being fixed with below support frame as described above Rake group and rear rake group;
The front rake group includes front rake group beam, front rake group seat, and is fixed on the front rake group beam by the front rake group seat Front disc;The excircle of the front disc offers multiple breach and cuts native tooth to be formed;
The rear rake group includes rear rake group beam, rear rake group seat, and is fixed on rake group beam in the rear by the rear rake group seat Rear disk blade;
The front rake group and the rear rake include multiple front discs and rear former disk blade respectively;It is multiple in the front rake group The extrados of front disc is towards same direction;The extrados of the multiple rear disk blades in the rear rake group and the front circle Disk blade extrados is towards on the contrary.
2. a kind of subsoiling land preparation all-in-one according to claim 1, it is characterised in that:The plow frame includes horizontally disposed Mesh font underframe;Many inclination pull bars are fixed with the underframe and pull bar quantity identical vertical rod are inclined with described;Many Rod end is connected by tie-beam;The pin connection seat being connected with traction apparatuss is fixed with the tie-beam centre position;Institute The body of rod formation three-legged structure for inclining pull bar and the vertical rod and the width over side sills direction is stated to improve the plow frame intensity.
3. a kind of subsoiling land preparation all-in-one according to claim 1, it is characterised in that:Support frame as described above is and the underframe The mesh font support body being detachably connected.
4. a kind of subsoiling land preparation all-in-one according to claim 3, it is characterised in that:Below support frame as described above, respectively Rake group before being fixed with two groups, rake group after two groups;Before described two groups, the front disc intrados of rake group is oppositely arranged;Described two groups The rear disk blade extrados of rake group is oppositely arranged afterwards.
5. a kind of subsoiling land preparation all-in-one according to claim 2, it is characterised in that:Below the underframe, 4 are fixed with Individual deep soil loosing shovel;Form arrangement of 4 deep soil loosing shovels according to " two after the first two ".
6. a kind of subsoiling land preparation all-in-one according to claim 5, it is characterised in that:In 4 deep soil loosing shovels front two The individual both sides for being arranged in the underframe front end, latter two is arranged in the centre position of the underframe rear end.
7. a kind of subsoiling land preparation all-in-one according to claim 6, it is characterised in that:Between between 4 deep soil loosing shovels Away from equal.
8. a kind of subsoiling land preparation all-in-one according to claim 6, it is characterised in that:The angle of deep soil loosing shovel described in the first two And the angle of latter two deep soil loosing shovel is oppositely arranged.
9. a kind of subsoiling land preparation all-in-one according to claim 3, it is characterised in that:Support frame as described above and the underframe phase Corresponding side is provided with key seat, support frame as described above is fixed with the underframe by cooperation of the bearing pin with the key seat.
10. a kind of subsoiling land preparation all-in-one according to claim 1, it is characterised in that:The front rake group beam and rear rake group Liang Jun is fixed on support frame as described above by connecting pole;The connecting pole upper end is fixed on support frame as described above by U-shaped screw rod, Bottom is fixed with the front rake group beam or rear rake group beam by bearing.
CN201610953834.3A 2016-11-03 2016-11-03 Deep scarification and soil preparation all-in-one machine Pending CN106561097A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201610953834.3A CN106561097A (en) 2016-11-03 2016-11-03 Deep scarification and soil preparation all-in-one machine

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Application Number Priority Date Filing Date Title
CN201610953834.3A CN106561097A (en) 2016-11-03 2016-11-03 Deep scarification and soil preparation all-in-one machine

Publications (1)

Publication Number Publication Date
CN106561097A true CN106561097A (en) 2017-04-19

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109299566A (en) * 2018-10-22 2019-02-01 山东农业大学 A kind of optimization of lubrication drag reduction operation part performance and effect evaluation method
RU207980U1 (en) * 2021-08-24 2021-11-29 Федеральное государственное бюджетное образовательное учреждение высшего образования "Ульяновский государственный аграрный университет имени П.А. Столыпина" COMBINED TILLAGE UNIT
CN114051779A (en) * 2021-11-11 2022-02-18 徐州阳洁缘新能源有限公司 Agricultural machine with soil turning, ditching, sowing and soil covering functions

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2699633Y (en) * 2004-03-04 2005-05-18 中国农业大学 Side type deep soil pulverizer
JP3129872U (en) * 2006-12-18 2007-03-08 株式会社 イダ Combined tillage device
CN101637073A (en) * 2009-08-13 2010-02-03 郑宇虎 Two-way multi-share plough unit
CN202340370U (en) * 2011-11-30 2012-07-25 山东大华机械有限公司 Deep loosening knife for deep loosening machine
CN202889891U (en) * 2012-08-02 2013-04-24 吉林省康达农业机械有限公司 Deep scarification land preparation machine
CN203015394U (en) * 2012-11-20 2013-06-26 山东天盛机械制造有限公司 Agricultural disc harrow
CN204741677U (en) * 2015-07-02 2015-11-11 新疆农垦科学院 Novel crooked formula is pine plough deeply
CN204859926U (en) * 2015-06-16 2015-12-16 刘世恩 Soil tillage equipment with garrulous function of leveling of dark pine and harrow
CN206260218U (en) * 2016-11-03 2017-06-20 安徽邓氏机械制造有限公司 A kind of subsoiling land preparation all-in-one

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2699633Y (en) * 2004-03-04 2005-05-18 中国农业大学 Side type deep soil pulverizer
JP3129872U (en) * 2006-12-18 2007-03-08 株式会社 イダ Combined tillage device
CN101637073A (en) * 2009-08-13 2010-02-03 郑宇虎 Two-way multi-share plough unit
CN202340370U (en) * 2011-11-30 2012-07-25 山东大华机械有限公司 Deep loosening knife for deep loosening machine
CN202889891U (en) * 2012-08-02 2013-04-24 吉林省康达农业机械有限公司 Deep scarification land preparation machine
CN203015394U (en) * 2012-11-20 2013-06-26 山东天盛机械制造有限公司 Agricultural disc harrow
CN204859926U (en) * 2015-06-16 2015-12-16 刘世恩 Soil tillage equipment with garrulous function of leveling of dark pine and harrow
CN204741677U (en) * 2015-07-02 2015-11-11 新疆农垦科学院 Novel crooked formula is pine plough deeply
CN206260218U (en) * 2016-11-03 2017-06-20 安徽邓氏机械制造有限公司 A kind of subsoiling land preparation all-in-one

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109299566A (en) * 2018-10-22 2019-02-01 山东农业大学 A kind of optimization of lubrication drag reduction operation part performance and effect evaluation method
CN109299566B (en) * 2018-10-22 2023-04-18 山东农业大学 Method for optimizing performance and evaluating effect of lubricating and drag-reducing operation part
RU207980U1 (en) * 2021-08-24 2021-11-29 Федеральное государственное бюджетное образовательное учреждение высшего образования "Ульяновский государственный аграрный университет имени П.А. Столыпина" COMBINED TILLAGE UNIT
CN114051779A (en) * 2021-11-11 2022-02-18 徐州阳洁缘新能源有限公司 Agricultural machine with soil turning, ditching, sowing and soil covering functions
CN114051779B (en) * 2021-11-11 2023-12-12 江苏四达重工有限公司 Agricultural machine with soil turning, ditching, seeding and earthing functions

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Application publication date: 20170419