CN104541623A - Power-saving efficient combination subsoiling plough - Google Patents

Power-saving efficient combination subsoiling plough Download PDF

Info

Publication number
CN104541623A
CN104541623A CN201410850252.3A CN201410850252A CN104541623A CN 104541623 A CN104541623 A CN 104541623A CN 201410850252 A CN201410850252 A CN 201410850252A CN 104541623 A CN104541623 A CN 104541623A
Authority
CN
China
Prior art keywords
subsoiling
shovel
plow
deep soil
soil loosing
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.)
Granted
Application number
CN201410850252.3A
Other languages
Chinese (zh)
Other versions
CN104541623B (en
Inventor
史江涛
薛娟
刘文峰
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.)
XI'AN YAAO AGRICULTURAL MACHINERY CO Ltd
Original Assignee
XI'AN YAAO AGRICULTURAL MACHINERY 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 XI'AN YAAO AGRICULTURAL MACHINERY CO Ltd filed Critical XI'AN YAAO AGRICULTURAL MACHINERY CO Ltd
Priority to CN201410850252.3A priority Critical patent/CN104541623B/en
Publication of CN104541623A publication Critical patent/CN104541623A/en
Application granted granted Critical
Publication of CN104541623B publication Critical patent/CN104541623B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Landscapes

  • Soil Working Implements (AREA)

Abstract

The invention relates to a power-saving efficient combination subsoiling plough. The power-saving efficient combination subsoiling plough comprises a stand, a soil cutting disc plough and a subsoiling plough shovel; the soil cutting disc plough and the subsoiling plough shovel are located at the same axial line and arranged on the stand in sequence; the subsoiling plough shovel comprises a subsoiling shovel handle and a subsoiling shovel body arranged at the front end of the subsoiling shovel handle; the penetrating angle of the subsoiling shovel body is 30 to 38 degrees; the working length of the subsoiling shovel body is 250 to 400 millimeters; the subsoiling shovel body is 20 to 60 millimeters in thickness; an angle between the subsoiling shovel handle and the ground advancing direction is 60 to 80 degrees; the upper surface of the subsoiling shovel body is 20 to 60 millimeters higher than the upper surface of the subsoiling shovel handle; the horizontal distance between the center of the soil cutting disc plough and the shovel point of the subsoiling shovel body of the subsoiling plough shovel is 260 to 600 millimeters; the distance between the shovel point of the subsoiling shovel body and the subsoiling shovel handle is 500 to 800 millimeters; the soil cutting disc plough enters the ground by 10 to 15 centimeters under a working state. The power-saving efficient combination subsoiling plough saves power and labor.

Description

Economize merit efficient combination subsoiling plow
Technical field
The invention belongs to agricultural mechanical field, relate to a kind of combination subsoiling plow, particularly relate to a kind of province merit efficient combination subsoiling plow.
Background technology
Subsoiling plow is made up of deep soil loosing shovel and subsoiling spade, and deep soil loosing shovel and subsoiling spade link together, and links fixing, carry out work with frame.
Block up when prior art occurs that weeds are many in the application plow standard, affects normal subsoiling work, and obviously there is the problem that power consumption is large and require great effort.The structural dimensions of deep soil loosing shovel and subsoiling spade, the size of deep soil loosing shovel and angle of penetration are within the scope of GB (JB/T9788-1999) and design manual, what it was particular about is that deep soil loosing shovel adopts less penetrating angle to bury and break ground, break ground by less penetrating angle and the power of burying and obtain plough shovel and bury, break ground, advance under the traction of tractive force, subsoiling spade adopts the principle of sliding cutting to select suitable lift angle and circular arc to break ground.Subsoiling spade adopts sliding cutting principle, reach that subsoiling spade breaks ground to the soil layer before subsoiling spade, point soil compaction, spade both sides and native frictional force.Deep soil loosing shovel working resistance=deep soil loosing shovel buries, break ground, lift that native power+subsoiling spade breaks ground, point soil compaction power/spade both sides and native frictional force.
In GB (JB/T9788-1999), the deep soil loosing shovel in subsoiling plow adopts suitable penetrating angle 3-25 °, reaches deep soil loosing shovel in the minimum power of burying of the 35cm degree of depth, carries out the burying of deep soil loosing shovel position, breaks ground, lifts geotechnique and do; Angle is little/and height that soil lifts is just little, and the lofting effect of soil is relatively just little.
Deep soil loosing shovel, plough shovel, seed opener adopt less penetrating angle at 15 °-25 °, and sower hoe shovel type ditching machine with dual adopts penetrating angle 53 °-59 °, and the active length of shovel is between 150-200mm; Plough shovel thickness 5-10mm.Subsoiling spade is of a size of 270-300mm to deep soil loosing shovel seat, setting angle 15 ° of-25 ° of standards are 23 °, subsoiling spade and-110 ° in 90 ° of ground direction of advance, the curvature heart is to shovel bottom 290-320mm, and it is concordant with subsoiling spade upper surface or a little less than subsoiling spade upper surface that deep soil loosing shovel installs rear shovel upper surface.
Deep soil loosing shovel and subsoiling spade all adopt suitable angle of burying and break ground should be most labour-saving in theory, when in fact existing structure subsoiling effect is identical with fluffy degree, and power consumption large, effort during existing structure work.Fraction horsepower (less than 30 horsepowers) tractor, wheelspan 1.2 meters, Subsoiler uses a subsoiling spade combination not cover wheelspan, can not work; Use the combination of 2-3 subsoiling spade, facility draw motionless, cannot farming; The eventful plow standard that blocks up of weeds, affects normal subsoiling work.
Summary of the invention
In order to solve the above-mentioned technical problem existed in background technology, the invention provides a kind of province merit labour-saving province merit efficient combination subsoiling plow.
Technical solution of the present invention is: the invention provides a kind of province merit efficient combination subsoiling plow, it is characterized in that: described province merit efficient combination subsoiling plow comprises frame, cuts native disk plow and subsoiling plow shovel; Described native disk plow and the subsoiling plow of cutting is shoveled and is in same axis and is successively set in frame; Described subsoiling plow shovel comprises subsoiling spade and is arranged on the deep soil loosing shovel of subsoiling spade leading section; The penetrating angle of described deep soil loosing shovel is 30 °-38 °; The active length of described deep soil loosing shovel is 250-400mm; The thickness of described deep soil loosing shovel is 20-60mm; Described subsoiling spade becomes 60 °-80 ° with ground direction of advance; The upper surface of described deep soil loosing shovel exceeds 20-60mm than subsoiling spade upper surface; Described cut native disk plow center and subsoiling plow shovel in the horizontal range of spear of deep soil loosing shovel be 260-600mm; The spear of described deep soil loosing shovel is 500-800mm to the distance of subsoiling spade; Described cut native disk plow in working order time stretch into earth's surface 10-15cm.
The penetrating angle of above-mentioned deep soil loosing shovel is 32 °-35 °; The active length of described deep soil loosing shovel is 280-350mm; The thickness of described deep soil loosing shovel is 25-35mm; Described subsoiling spade becomes 70 °-75 ° with ground direction of advance; The upper surface of described deep soil loosing shovel exceeds 30-45mm than subsoiling spade upper surface; Described cut native disk plow center and subsoiling plow shovel in the horizontal range of spear of deep soil loosing shovel be 300-450mm; The spear of described deep soil loosing shovel is 550-700mm to the distance of subsoiling spade.
Above-mentioned province merit efficient combination subsoiling plow also comprise be arranged on frame and subsoiling plow shovel between compression spring; It is 250-350kg that the precompression of described compression spring is arranged.
It is 280-320kg that the precompression of above-mentioned compression spring is arranged.
Above-mentioned compression spring is one group or two groups.
Advantage of the present invention is:
The invention provides a kind of province merit efficient combination subsoiling plow, traditional structure changes to and cuts native disk plow by this subsoiling plow, the combination of vibrations and subsoiling plow shovel, disk plow is first adopted to cut the thick soil layer of earth's surface 10-15cm and weeds, disk plow is before the combination of vibration-type deep soil loosening plough shovel, combination subsoiling plow farming 16-35cm depth, burying in the soil layer that 20-25cm is thick altogether, break ground, farming, and lift soil layer due to the thick soil layer of plough shovel top earth's surface 10-15cm and cut, split in the middle of the soil layer soil that layer 10-15cm is thick thereon of 16-35cm depth, both sides are to pressing down, under the effect that deep soil loosing shovel is lifted from bottom to top, the soil layer of 16-35cm depth is easy to be torn very soon and lift, form crack, be lifted and tear out crack period at this soil layer, subsoiling spade, through crack, just divides soil can through soil layer to soil layer slightly, because combination subsoiling plow is mainly buried to the 16-35cm depth soil layer that 20-23cm is thick altogether, break ground, lifted native farming, so combination subsoiling plow is compared with the laborsaving 30-50% of prior art.
Accompanying drawing explanation
Fig. 1 is the structural representation of province provided by the present invention merit efficient combination subsoiling plow;
Fig. 2 is the perspective view of province provided by the present invention merit efficient combination subsoiling plow;
Fig. 3 is the structural representation of deep soil loosing shovel of the present invention;
Fig. 4 is the structural representation of subsoiling plow of the present invention;
Fig. 5 is the structural representation of another embodiment of subsoiling plow of the present invention;
Fig. 6 is the average tractive force schematic diagram of the subsoiling plow adopting GB to be formed;
Fig. 7 is the average tractive force schematic diagram adopting subsoiling plow provided by the present invention;
Wherein:
1-subsoiling spade; 2-frame; 3-compression spring; 4-deep soil loosing shovel.
Embodiment
See Fig. 1, Fig. 2, Fig. 3, Fig. 4 and Fig. 5, the invention provides a kind of province merit efficient combination subsoiling plow, this province's merit efficient combination subsoiling plow comprises frame 2, cuts native disk plow and subsoiling plow shovel; Cut native disk plow and subsoiling plow to shovel and be in same axis and be successively set in frame 2; Subsoiling plow shovel comprises deep soil loosing shovel 4 handle 1 and is arranged on the deep soil loosing shovel 4 of deep soil loosing shovel 4 handle 1 leading section; For guaranteeing that soil layer lifts and tearing effects, the penetrating angle of deep soil loosing shovel 4 is 30 °-38 °, lifted by soil above deep soil loosing shovel 4 and flow backward (deep soil loosing shovel 4 advances, and soil stream is exactly backward relatively), on deep soil loosing shovel 4, necromancer lifts on flowing to, tears and the effect flowed backward; The active length of deep soil loosing shovel 4 is 250-400mm; The thickness of deep soil loosing shovel 4 is 20-60mm; Deep soil loosing shovel 4 handle 1 becomes 60 °-80 ° with ground direction of advance; The upper surface of deep soil loosing shovel 4 exceeds 20-60mm than deep soil loosing shovel 4 handle 1 upper surface; Cut the center of native disk plow and subsoiling plow shovel in the horizontal range of spear of deep soil loosing shovel 4 are 260-600mm; The spear of deep soil loosing shovel 4 is 500-800mm to the distance of deep soil loosing shovel 4 handle 1; Cut native disk plow in working order time stretch into earth's surface 10-15cm.
As preferably, the penetrating angle of deep soil loosing shovel 4 of the present invention is 32 °-35 °; The active length of deep soil loosing shovel 4 is 280-350mm; The thickness of deep soil loosing shovel 4 is 25-35mm; Deep soil loosing shovel 4 handle 1 becomes 70 °-75 ° with ground direction of advance; The upper surface of deep soil loosing shovel 4 exceeds 30-45mm than deep soil loosing shovel 4 handle 1 upper surface; Cut the center of native disk plow and subsoiling plow shovel in the horizontal range of spear of deep soil loosing shovel 4 are 300-450mm; The spear of deep soil loosing shovel 4 is 550-700mm to the distance of deep soil loosing shovel 4 handle 1.
Economize merit efficient combination subsoiling plow also comprise be arranged on frame 2 and subsoiling plow shovel between compression spring 3; It is 250-350kg that the precompression of compression spring 3 is arranged, preferred 280-320kg.Compression spring 3 can be one group or two groups.
The course of work of the present invention is: first adopt and cut the thick soil layer of native disk plow incision earth's surface 10-15cm and weeds, cut native disk plow before the combination of vibration-type deep soil loosening plough shovel, combination subsoiling plow farming 16-35cm depth, burying in the soil layer that 20-25cm is thick altogether, break ground, farming, and lift soil layer due to the thick soil layer of plough shovel top earth's surface 10-15cm and cut, split in the middle of the soil layer soil that layer 10-15cm is thick thereon of 16-35cm depth, both sides are to pressing down, under the effect that deep soil loosing shovel 4 is lifted from bottom to top, the soil layer of 16-35cm depth is easy to be torn very soon and lift, form crack, be lifted and tear out crack period at this soil layer, deep soil loosing shovel 4 handle 1, through crack, just divides soil can through soil layer to soil layer slightly, because combination subsoiling plow is mainly buried to the 16-35cm depth soil layer that 20-23cm is thick altogether, break ground, lifted native farming, so combination subsoiling plow is compared with the laborsaving 30-50% of prior art.
Subsoiling plow in the combination of vibration-type deep soil loosening plough is provided with compression spring 3, and can play overload protection, batch (-type) vibrations to subsoiling plow, precompression is arranged on 250-350kg power, is good with 280-320kg power; (to compress 10mm gross pressure for 100-180kg power, can be one, also can be two spring compositions for spring pressure and decrement;
Deep soil loosing shovel 4 to deep soil loosing shovel 4 handle 1 leave enough bulk ensure that native stream lifts, tear, backward flowing time leave the space of tearing flowing, deep soil loosing shovel 4 handle 1 just lifting, tear, pass in loose soil stream gap, point soil resistance is minimum, without breaking ground resistance, reach identical subsoiling requirement after tested, required tractive force (tillage resistance) is compared with the little 20%-35% of prior art, because deep soil loosing shovel 4 adopts large penetrating angle, the height that soil stream lifts is large, and after subsoiling, the lofting effect of soil is relatively all right.
See Fig. 6, the average tractive force adopting the subsoiling plow after GB is 5130N; See Fig. 7, the average tractive force adopting subsoiling plow provided by the present invention is 2585N, is not difficult to find, adopts subsoiling plow provided by the present invention less by 49.6% than the average tractive force of the subsoiling plow of GB, namely economizes merit 49.6%.
The structure of traditional subsoiling plow is significantly changed by province provided by the present invention merit efficient combination subsoiling plow, first, is change in structure, comprises the combination of cutting native disk plow, vibrations part and subsoiling plow shovel; Secondly, the various parameters of the deep soil loosing shovel 4 of existing (GB) are revised in detail.From by surface, the present invention is effective simple combination of several workpiece, and physical dimension just strengthens and the change of space angle everywhere, but from essential analysis, the working resistance of province provided by the present invention merit efficient combination subsoiling plow is that native power cut by disk, vibration-type deep soil loosening plough shovel buries, break ground, lift native power and the minimum native frictional force sum of deep soil loosing shovel 4 handle 1 point, by actual effect see the principle worked in actual cultivating procedure play principle change, actual effect reaches a beyond thought change, breakthrough and the change of an actual farming principle, break through principle thinking and data area that design manual and standard in decades provide, have received a beyond thought effect, technical scheme new under subsoiling requires the same terms economizes merit 30-50% (tractive force little laborsaving 20%-60%) than prior art.

Claims (5)

1. economize a merit efficient combination subsoiling plow, it is characterized in that: described province merit efficient combination subsoiling plow comprises frame, cuts native disk plow and subsoiling plow shovel; Described native disk plow and the subsoiling plow of cutting is shoveled and is in same axis and is successively set in frame; Described subsoiling plow shovel comprises subsoiling spade and is arranged on the deep soil loosing shovel of subsoiling spade leading section; The penetrating angle of described deep soil loosing shovel is 30 °-38 °; The active length of described deep soil loosing shovel is 250-400mm; The thickness of described deep soil loosing shovel is 20-60mm; Described subsoiling spade becomes 60 °-80 ° with ground direction of advance; The upper surface of described deep soil loosing shovel exceeds 20-60mm than subsoiling spade upper surface; Described cut native disk plow center and subsoiling plow shovel in the horizontal range of spear of deep soil loosing shovel be 260-600mm; The spear of described deep soil loosing shovel is 500-800mm to the distance of subsoiling spade; Described cut native disk plow in working order time stretch into earth's surface 10-15cm.
2. province according to claim 1 merit efficient combination subsoiling plow, is characterized in that: the penetrating angle of described deep soil loosing shovel is 32 °-35 °; The active length of described deep soil loosing shovel is 280-350mm; The thickness of described deep soil loosing shovel is 25-35mm; Described subsoiling spade becomes 70 °-75 ° with ground direction of advance; The upper surface of described deep soil loosing shovel exceeds 30-45mm than subsoiling spade upper surface; Described cut native disk plow center and subsoiling plow shovel in the horizontal range of spear of deep soil loosing shovel be 300-450mm; The spear of described deep soil loosing shovel is 550-700mm to the distance of subsoiling spade.
3. province according to claim 1 and 2 merit efficient combination subsoiling plow, is characterized in that: described province merit efficient combination subsoiling plow also comprise be arranged on frame and subsoiling plow shovel between compression spring; It is 250-350kg that the precompression of described compression spring is arranged.
4. province according to claim 3 merit efficient combination subsoiling plow, is characterized in that: it is 280-320kg that the precompression of described compression spring is arranged.
5. province according to claim 4 merit efficient combination subsoiling plow, is characterized in that: described compression spring is one group or two groups.
CN201410850252.3A 2014-12-30 2014-12-30 Save merit efficient combination subsoiling plow Active CN104541623B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201410850252.3A CN104541623B (en) 2014-12-30 2014-12-30 Save merit efficient combination subsoiling plow

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201410850252.3A CN104541623B (en) 2014-12-30 2014-12-30 Save merit efficient combination subsoiling plow

Publications (2)

Publication Number Publication Date
CN104541623A true CN104541623A (en) 2015-04-29
CN104541623B CN104541623B (en) 2016-08-31

Family

ID=53059573

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201410850252.3A Active CN104541623B (en) 2014-12-30 2014-12-30 Save merit efficient combination subsoiling plow

Country Status (1)

Country Link
CN (1) CN104541623B (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105474807A (en) * 2016-01-10 2016-04-13 东营市华枝工贸有限公司 Breakage-resistant subsoiling plough suit
CN107347265A (en) * 2017-08-30 2017-11-17 吉林大学 A kind of bionical oscillating airfoil deep soil loosing shovel
CN107548581A (en) * 2017-09-06 2018-01-09 山东农业大学 A kind of mouldboard plow structure
CN107580812A (en) * 2017-10-22 2018-01-16 北京鼎翰科技有限公司 A kind of deep-scarifying type rotary tillage ferti-seeding combine
CN108496424A (en) * 2018-04-09 2018-09-07 周宁县善长祥农业机械研发有限公司 A kind of anti-stone plough of deep ploughing
CN115250650A (en) * 2022-09-05 2022-11-01 吉林大学 Double-wing type subsoiling mechanism with bionic rigid-flexible coupling self-excited vibration

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1685781A (en) * 2005-02-01 2005-10-26 四平市农业机械化研究所 Deep soil loosing shovel
CN201438813U (en) * 2009-03-12 2010-04-21 云南省烟草公司曲靖市公司 Rotary tillage and subsoiling ridger for soil
CN103081590A (en) * 2013-01-03 2013-05-08 内蒙古农业大学 Combined subsoiler
RU2490845C1 (en) * 2012-02-15 2013-08-27 Федеральное государственное бюджетное образовательное учреждение высшего профессионального образования "Астраханский государственный университет" Subsurface plow fertiliser
RU2013111278A (en) * 2013-03-12 2014-09-20 Василий Михайлович Бойков METHOD FOR BASIC SOIL TREATMENT AND COMBINED SOIL PROCESSING TOOLS
CN204408864U (en) * 2014-12-30 2015-06-24 西安亚澳农机股份有限公司 Economize merit efficient combination subsoiling plow

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1685781A (en) * 2005-02-01 2005-10-26 四平市农业机械化研究所 Deep soil loosing shovel
CN201438813U (en) * 2009-03-12 2010-04-21 云南省烟草公司曲靖市公司 Rotary tillage and subsoiling ridger for soil
RU2490845C1 (en) * 2012-02-15 2013-08-27 Федеральное государственное бюджетное образовательное учреждение высшего профессионального образования "Астраханский государственный университет" Subsurface plow fertiliser
CN103081590A (en) * 2013-01-03 2013-05-08 内蒙古农业大学 Combined subsoiler
RU2013111278A (en) * 2013-03-12 2014-09-20 Василий Михайлович Бойков METHOD FOR BASIC SOIL TREATMENT AND COMBINED SOIL PROCESSING TOOLS
CN204408864U (en) * 2014-12-30 2015-06-24 西安亚澳农机股份有限公司 Economize merit efficient combination subsoiling plow

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105474807A (en) * 2016-01-10 2016-04-13 东营市华枝工贸有限公司 Breakage-resistant subsoiling plough suit
CN107347265A (en) * 2017-08-30 2017-11-17 吉林大学 A kind of bionical oscillating airfoil deep soil loosing shovel
CN107548581A (en) * 2017-09-06 2018-01-09 山东农业大学 A kind of mouldboard plow structure
CN107580812A (en) * 2017-10-22 2018-01-16 北京鼎翰科技有限公司 A kind of deep-scarifying type rotary tillage ferti-seeding combine
CN108496424A (en) * 2018-04-09 2018-09-07 周宁县善长祥农业机械研发有限公司 A kind of anti-stone plough of deep ploughing
CN115250650A (en) * 2022-09-05 2022-11-01 吉林大学 Double-wing type subsoiling mechanism with bionic rigid-flexible coupling self-excited vibration
CN115250650B (en) * 2022-09-05 2024-03-22 吉林大学 Double-wing deep scarification mechanism capable of simulating rigid-flexible coupling self-excited vibration

Also Published As

Publication number Publication date
CN104541623B (en) 2016-08-31

Similar Documents

Publication Publication Date Title
CN104541623A (en) Power-saving efficient combination subsoiling plough
CN204408864U (en) Economize merit efficient combination subsoiling plow
CN105359643A (en) Polynomial curve based bionic resistance-reducing sub-soiling shovel
CN103081590B (en) Associating subsoiler
CN202697160U (en) Layering subsoiler
CN204377351U (en) The close coupled type colter structure of rotovator
CN204408853U (en) The subsoiling plow that efficient province merit tractive resistance is little
CN206061446U (en) A kind of subsoiling rotary cultivator
CN204377350U (en) The pulverator plough knife structure of rotovator
CN104770090A (en) Plowing, grass burying and rotary tillage compound operation soil preparation machine
CN204350568U (en) Sugarcane planting machine propeller type ditching, ridging device
CN204498693U (en) A kind of simple and easy non-irrigated lotus root excavates device
CN201674763U (en) Totally-straw-covered tillage-free deep scarification machine
CN203467132U (en) Cutter shaft provided with double cutting heads
CN209572349U (en) A kind of compound clod-crusher of ploughshare
CN202135460U (en) Rotary cultivator provided with straight cutter-bent cutter combined cutter shaft
CN202178953U (en) Beet drawing machine
CN203027707U (en) Wing-shovel-type potato excavator
CN104541606B (en) Efficiently save the subsoiling plow that merit tractive resistance is little
CN105766094B (en) Dynamic bionic subsoiling device with clod-crusher
CN205161039U (en) Bionical drag reduction subsoiler based on polynomial curve
CN204616458U (en) A kind of ditching machine
CN202514246U (en) Rotary cultivator provided with cutter shaft with symmetrically arranged cutters
CN204069653U (en) A kind of deep-loosening soil-working machine
CN203748191U (en) Ploughing, grass burying and rotary tillage compound operation soil preparation machine

Legal Events

Date Code Title Description
C06 Publication
PB01 Publication
C10 Entry into substantive examination
SE01 Entry into force of request for substantive examination
C14 Grant of patent or utility model
GR01 Patent grant