CN112889377B - High-efficient wheat is sowed back soil and is hardened and broken device - Google Patents

High-efficient wheat is sowed back soil and is hardened and broken device Download PDF

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Publication number
CN112889377B
CN112889377B CN202110055799.4A CN202110055799A CN112889377B CN 112889377 B CN112889377 B CN 112889377B CN 202110055799 A CN202110055799 A CN 202110055799A CN 112889377 B CN112889377 B CN 112889377B
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fixedly connected
side wall
outer side
lateral wall
wall
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CN112889377A (en
Inventor
鲁晋秀
李峰
董飞
贾亚琴
申艳婷
王苗
许玉娟
闫秋艳
杨峰
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Wheat Research Institute of Shanxi Academy of Agricultural Sciences
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Wheat Research Institute of Shanxi Academy of Agricultural Sciences
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    • 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
    • A01B49/065—Combinations of soil-working tools with non-soil-working tools, e.g. planting tools for sowing or fertilising the soil-working tools being actively driven
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
    • F16F15/00—Suppression of vibrations in systems; Means or arrangements for avoiding or reducing out-of-balance forces, e.g. due to motion
    • F16F15/02—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems
    • F16F15/04—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems using elastic means
    • F16F15/06—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems using elastic means with metal springs
    • F16F15/067—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems using elastic means with metal springs using only wound springs
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
    • F16F2238/00—Type of springs or dampers
    • F16F2238/02—Springs
    • F16F2238/026—Springs wound- or coil-like

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  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Soil Sciences (AREA)
  • Environmental Sciences (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Aviation & Aerospace Engineering (AREA)
  • Sowing (AREA)

Abstract

The utility model discloses a high-efficiency soil hardening breaking device after wheat seeding, which comprises a supporting base, wherein a handle is fixedly connected to the outer side wall of the supporting base, a moving wheel is fixedly installed on the outer side wall of the supporting base, a storage tank is fixedly connected to the outer side wall of the supporting base, a conveying box is fixedly connected to the outer side wall of the supporting base, a conveying mechanism is rotatably connected to the inner side wall of the conveying box, a discharge pipe is fixedly connected to the outer side wall of the conveying box, a connecting pipe is fixedly connected to the outer side wall of the storage tank, chemical fertilizer is discharged into soil through a discharge hole formed in a crushing needle, the crop is fertilized while the hardened part in the soil is broken, the hardened part is not required to be broken manually, a large amount of manpower and material resources are saved, the breaking speed of the hardened part of the soil is accelerated, meanwhile, the crops are fertilized to ensure the growth quality of the crops.

Description

High-efficient wheat is sowed back soil and is hardened and broken device
Technical Field
The utility model relates to the technical field of soil hardening and breaking, in particular to a high-efficiency device for breaking soil hardening after wheat seeding.
Background
The soil hardening refers to the phenomenon that the surface layer of soil is structurally damaged and dispersed under the action of external factors such as irrigation or rainfall due to lack of organic matters, and the soil surface is hardened under the action of cohesive force after drying, so that the soil porosity is reduced, the permeability is poor, the ground temperature is reduced under the soil hardening condition, the activity of aerobic microorganisms in the soil is inhibited, the water, gas and heat conditions cannot be well coordinated, and the fertilizer supply, fertilizer retention and water retention capacity of the soil are weak. The soil hardening also delays the decomposition of organic matters, the physical and chemical properties of the soil gradually deteriorate, the soil fertility gradually declines, the soil fertility is reduced along with the deterioration, the growth and development of crops cannot be well met, meanwhile, the respiration of cells at the roots of the crops is weakened, the nutrients such as nitrogen and the like mostly exist in an ionic state, the active transportation mode is adopted during absorption, the energy generated by cell metabolism needs to be consumed, the respiration is weakened, so the energy supply is insufficient, and the absorption is influenced.
Through the retrieval, chinese patent is CN 208095085U's utility model patent, a device for breaking soil hardening in the maize field of production of hybrid seeds is disclosed, with solve among the prior art in the maize field soil hardening after artifical the breaking waste time and energy, problem that intensity of labour is big, the device is including explaiing the roller, the crushing roller, fixed being equipped with on explaiing the roller and explaiing the roller, it is equipped with a plurality of teeth of explaiing to follow the circumferencial direction on the explaiing the roller, the fixed crushing roller that is equipped with on the crushing roller, the crushing roller is equipped with a plurality of crushing racks along the circumferencial direction, and be equipped with between the adjacent crushing rack and keep off the native board, the axle head of explaiing the roller is equipped with and explains the roller mount pad, the axle head that crushing roller mount pad is equipped with, and explain to be connected with the crossbeam that the level set up between roller mount pad, still be connected with the catch bar on the crushing roller mount pad. The utility model has simple structure and realizes the disintegration of hardened soil in the corn field. Effectively ensures the sufficiency of corn fertilization and irrigation, and the like, and ensures the yield of corn.
After the wheat seeding, the rainfall, the insolate, soil lacks organic matter and when seeding reason such as soil water content is big causes the phenomenon that hardens to appear in the soil, thereby reduce the rate of emergence of wheat, however above-mentioned device produces violent vibration at the in-process that explains the department that hardens in the soil, owing to lack damping device, thereby make the life greatly reduced of device, and only can explain the department that hardens in the soil and can't carry out wheat moisturizing benefit fertile to the crop through broken needle, and then can't guarantee that the wheat can normally sprout and emerge, and artifical moisturizing fertilization needs waste a large amount of time and manpower, consequently, need a high-efficient wheat seeding back soil hardening breaking device, complete for the seedling, the seedling is neat, the seedling is strong and provides good surface soil microorganism environment.
Disclosure of Invention
The utility model aims to solve the defects in the prior art, and provides a high-efficiency device for breaking soil hardening after wheat seeding.
In order to achieve the purpose, the utility model adopts the following technical scheme:
a high-efficiency device for breaking soil hardening after wheat seeding comprises a supporting base, wherein a handle is fixedly connected to the outer side wall of the supporting base, a moving wheel is fixedly mounted on the outer side wall of the supporting base, a storage tank is fixedly connected to the outer side wall of the supporting base, a conveying box is fixedly connected to the outer side wall of the supporting base, a material conveying mechanism is rotatably connected to the inner side wall of the conveying box, a discharge pipe is fixedly connected to the outer side wall of the conveying box, a connecting pipe is fixedly connected to the outer side wall of the storage tank, the tail end of the connecting pipe is fixedly connected with the outer side wall of the conveying box, a fixing block is fixedly connected to the outer side wall of the supporting base, an installation cavity is formed in the fixing block, a limiting block is slidably connected to the inner side wall of the installation cavity, and a damping mechanism is fixedly connected to the inner side wall of the installation cavity, the outer side wall of the fixed block is provided with a limit groove, the limit block penetrates through the limit groove, the outer side wall of the limit block is fixedly connected with a support frame, the outer side wall of the support frame is rotatably connected with a crushing wheel, the tail end of the discharge pipe penetrates through the outer side wall of the support frame and the outer side wall of the crushing wheel, a plurality of locking grooves are arranged on the outer side wall of the crushing wheel, a fixed box is fixedly connected on the inner side wall of each locking groove, the inner side wall of the fixed box is symmetrically provided with positioning grooves, the inner side wall of each positioning groove is connected with a crushing needle in a sliding way, the outer side wall of the crushing needle is symmetrically provided with feeding holes, the outer side wall of the fixed box is symmetrically provided with connecting holes, the outer side wall of the crushing needle is fixedly connected with an opening mechanism, the tail end of the crushing needle is tightly abutted to the ground, and the outer side wall of the supporting frame is fixedly connected with a traction ring.
Preferably, defeated material mechanism is including rotating the spiral output rod of connection on the delivery box inside wall, the terminal lateral wall that runs through the delivery box of spiral output rod, the terminal fixed connection of output shaft with driving motor's of spiral output rod.
Preferably, damper includes the locking lever of fixed connection on the installation cavity inside wall, the locking lever runs through the stopper, fixedly connected with damping spring on the lateral wall of locking lever, damping spring's the terminal lateral wall fixed connection with the stopper.
Preferably, the opening mechanism comprises a transmission rod fixedly connected to the outer side wall of the crushing needle, the transmission rod penetrates through the outer side wall of the fixing box, the tail end of the transmission rod is fixedly connected with a closing plate, the outer side wall of the transmission rod is fixedly connected with a pressure spring, and the tail end of the pressure spring is fixedly connected with the outer side wall of the crushing needle.
Preferably, damping spring and the outside wall of locking lever are around establishing, damping spring's material is spring steel.
Preferably, a plurality of discharge holes are formed on the outer side wall of the crushing needle.
Preferably, the pressure spring is communicated with the outer side wall of the transmission rod, and the material of the pressure spring is austenitic stainless steel.
Preferably, the mounting cavity is communicated with the limiting groove.
Compared with the prior art, the utility model has the beneficial effects that:
1. the crushing wheel is pushed to roll forwards by a hand-held handle, a plurality of fixed boxes are installed on the outer side wall of the crushing wheel, the crushing needles are connected with positioning grooves formed in the fixed boxes in a sliding mode, the hardened parts in soil can be cracked by the crushing needles, a driving motor is started again, an output shaft of the driving motor enables a spiral output rod to start rotating, the spiral output rod generates suction in the rotating process, liquid fertilizer in a storage tank is sucked into a conveying box through a connecting pipe and is conveyed into a discharge pipe through the conveying box, the spiral output rod is conveyed into the crushing wheel through the discharge pipe, when the crushing needles are in contact with the soil, the soil has upward supporting force on the crushing needles, the crushing needles drive a transmission rod to move upwards, at the moment, the liquid fertilizer in the crushing wheel enters the fixed boxes through a connecting hole, and then enters the crushing needles through a feeding hole, finally discharge the chemical fertilizer to soil through the discharge hole of seting up on the broken needle, and then realized the fertilization to the crop when the department that hardens in to soil is cracked, do not need the manual work to crack the department that hardens, thereby a large amount of manpower and materials have been saved, the speed of cracking to the department that hardens in the soil has been accelerated, fertilize the growth quality of assurance crop to the crop simultaneously, when the weather is comparatively hot and soil water content is low, can change the inside liquid chemical fertilizer of holding vessel into water, and then irrigate the wheat seed in the soil, promote the seed germination and emerge, the manpower and the time that consume of sparingly irrigating.
2. Use the jolt that can produce in the course of the work through the cooperation between locking lever and the damping spring and carry out the shock attenuation, and then the life of extension fixture, the focus of whole device is lower, can avoid appearing the phenomenon of turning on one's side at the in-process that explains the position that hardens in the soil, can pull through livestock or tractor through the circle of pulling of installing on the support frame lateral wall, uses manpower sparingly.
Drawings
FIG. 1 is a schematic structural diagram of a high-efficiency wheat-sowed soil hardening breaking device provided by the utility model;
FIG. 2 is a top view of the present invention;
FIG. 3 is an enlarged view of portion A of the present invention;
FIG. 4 is an enlarged view of portion B of the present invention;
FIG. 5 is an enlarged view of portion C of the present invention;
fig. 6 is an enlarged view of the portion D of the present invention.
In the figure: the device comprises a support base 1, a handle 2, a motion wheel 3, a storage tank 4, a driving motor 5, a conveying box 6, a connecting pipe 7, a spiral output rod 8, a discharge pipe 9, a fixing block 10, a crushing wheel 11, a mounting cavity 12, a limiting groove 13, a locking rod 14, a damping spring 15, a limiting block 16, a support frame 17, a locking groove 18, a fixing box 19, a positioning groove 20, a crushing needle 21, a feeding hole 22, a transmission rod 23, a closed plate 24, a pressure spring 25, a connecting hole 26 and a traction ring 27.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.
Referring to fig. 1-6, the efficient wheat sowed soil hardening breaking device comprises a supporting base 1, wherein a handle 2 is fixedly connected to the outer side wall of the supporting base 1, a moving wheel 3 is fixedly mounted on the outer side wall of the supporting base 1, and a storage tank 4 is fixedly connected to the outer side wall of the supporting base 1;
the outer side wall of the supporting base 1 is fixedly connected with a conveying box 6, the inner side wall of the conveying box 6 is rotatably connected with a material conveying mechanism, the material conveying mechanism comprises a spiral output rod 8 rotatably connected to the inner side wall of the conveying box 6, the tail end of the spiral output rod 8 penetrates through the outer side wall of the conveying box 6, the tail end of the spiral output rod 8 is fixedly connected with the tail end of an output shaft of a driving motor 5, the outer side wall of the conveying box 6 is fixedly connected with a discharge pipe 9, the outer side wall of the storage tank 4 is fixedly connected with a connecting pipe 7, and the tail end of the connecting pipe 7 is fixedly connected with the outer side wall of the conveying box 6;
the outer side wall of the supporting base 1 is fixedly connected with a fixed block 10, the inside of the fixed block 10 is provided with an installation cavity 12, the inner side wall of the installation cavity 12 is slidably connected with a limit block 16, the inner side wall of the installation cavity 12 is fixedly connected with a damping mechanism, the damping mechanism comprises a locking rod 14 fixedly connected with the inner side wall of the installation cavity 12, the locking rod 14 penetrates through the limit block 16, the outer side wall of the locking rod 14 is fixedly connected with a damping spring 15, the tail end of the damping spring 15 is fixedly connected with the outer side wall of the limit block 16, the damping spring 15 and the outer side wall of the locking rod 14 are arranged in a winding mode, the damping spring 15 is made of spring steel, the strength of the spring steel structure is high, the shock which can be received by self-contraction when encountering shock can be buffered, the shock generated in the working process can be reduced through the damping mechanism, the service life of the device is further prolonged, the outer side wall of the fixed block 10 is provided with a limit groove 13, the mounting cavity 12 is communicated with the limiting groove 13, the limiting block 16 penetrates through the limiting groove 13, a supporting frame 17 is fixedly connected to the outer side wall of the limiting block 16, a crushing wheel 11 is rotatably connected to the outer side wall of the supporting frame 17, and the tail end of the discharge pipe 9 penetrates through the outer side wall of the supporting frame 17 and the outer side wall of the crushing wheel 11;
the outer side wall of the crushing wheel 11 is provided with a plurality of locking grooves 18, the inner side wall of each locking groove 18 is fixedly connected with a fixed box 19, the inner side wall of each fixed box 19 is symmetrically provided with a positioning groove 20, the inner side wall of each positioning groove 20 is connected with a crushing needle 21 in a sliding manner, the outer side wall of each crushing needle 21 is symmetrically provided with a feeding hole 22, the outer side wall of each fixed box 19 is symmetrically provided with a connecting hole 26, the outer side wall of each crushing needle 21 is provided with a plurality of discharge holes, so that liquid fertilizer can be discharged conveniently, the outer side wall of each crushing needle 21 is fixedly connected with an opening mechanism, the opening mechanism comprises a transmission rod 23 fixedly connected to the outer side wall of each crushing needle 21, the transmission rod 23 penetrates through the outer side wall of each fixed box 19, the tail end of each transmission rod 23 is fixedly connected with a closing plate 24, the outer side wall of each transmission rod 23 is fixedly connected with a pressure spring 25, and the tail end of each pressure spring 25 is fixedly connected with the outer side wall of each crushing needle 21, the pressure spring 25 is communicated with the outer side wall of the transmission rod 23, the pressure spring 25 is made of austenitic stainless steel, the austenitic stainless steel structure is not prone to rusting, the pressure spring can be used for a long time without replacement, the tail end of the crushing needle 21 is tightly abutted to the ground, liquid fertilizer can be added into soil through the opening mechanism, so that the growth quality of crops is guaranteed, the outer side wall of the supporting frame 17 is fixedly connected with the traction ring 27, and the device can be pulled through livestock or a tractor through the traction ring 27, so that manpower is saved;
when hardening to the soil and breaking late, wheat seed has sprouted this moment, and the top soil is obstructed, with 4 inside liquid chemical fertilizers of filling, can guarantee crop normal growth through the chemical fertilizer, ensures the rate of emergence, when the weather is comparatively hot and the low unfavorable sprouting of seed of soil water content, can change 4 inside liquid chemical fertilizers into water, and then realize the irrigation to the soil, the manpower and the time that save artifical irrigation and consume.
In the utility model, when in use, the support base 1 is moved to a working place, the driving motor 5 is started, the output shaft of the driving motor 5 drives the spiral output rod 8 to start rotating, the spiral output rod 8 generates suction force in the rotating process, so that liquid fertilizer in the storage tank 4 is sucked into the conveying box 6 through the connecting pipe 7, is transmitted into the discharge pipe 9 through the conveying box 6, and is finally conveyed into the crushing wheel 11 through the discharge pipe 9, at the moment, the column handle 2 is held by hands to regulate and control the direction, the support base 1 is pulled by livestock or a tractor to move, the crushing needle 21 arranged on the outer side wall of the crushing wheel 11 is contacted with the ground in the moving process of the support base 1, so that the plate joint on the ground is crushed, the crushing needle 21 is supported by the upward soil, so that the crushing needle 21 moves upwards, the crushing needle 21 moves upwards to drive the driving rod 23 to move upwards, thereby liquid fertilizer inside the crushing wheel 11 enters the fixed box 19 through the connecting hole 26, then enters the crushing needle 21 to the inside of the crushing wheel 11 through the feeding hole 22, and finally is discharged to soil through the discharge hole formed in the crushing needle 21, so that the fertilizer is applied to crops in the process of cracking the joint of the soil floor, the crushing needle 21 loses upward pressure on the ground along with the forward movement of the crushing wheel 11, the crushing needle 21 moves downwards due to the downward elasticity of the pressure spring 25, the crushing needle 21 drives the closing plate 24 to move downwards through the transmission rod 23, the closing plate 24 is tightly abutted against the connecting hole 26, the closing of the connecting hole 26 is realized, and the liquid fertilizer inside the crushing needle 21 cannot be discharged through the crushing needle 21 because the aperture of the discharge hole formed in the crushing needle 21 is small and the pressure generated by the rotation of the screw output rod 8 is not generated, avoid causing the waste, can produce violent vibration at the in-process that broken wheel 11 cracked the department that hardens, damping spring 15 can carry out the shock attenuation to the vibration that produces, and then extension fixture's life.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.

Claims (7)

1. The utility model provides a high-efficient wheat seeding back soil hardening breaking device, includes supports base (1), its characterized in that, fixedly connected with handle (2) on the lateral wall of support base (1), fixedly mounted has motion wheel (3) on the lateral wall of support base (1), fixedly connected with storage jar (4) on the lateral wall of support base (1), fixedly connected with delivery box (6) on the lateral wall of support base (1), it is connected with defeated material mechanism to rotate on the inside wall of delivery box (6), fixedly connected with discharge pipe (9) on the lateral wall of delivery box (6), fixedly connected with connecting pipe (7) on the lateral wall of storage jar (4), the terminal of connecting pipe (7) and the lateral wall fixed connection of delivery box (6), fixedly connected with fixed block (10) on the lateral wall of support base (1), the mounting chamber (12) has been seted up to the inside of fixed block (10), sliding connection has stopper (16) on the inside wall of mounting chamber (12), fixedly connected with damper on the inside wall of mounting chamber (12), spacing groove (13) have been seted up on the lateral wall of fixed block (10), stopper (16) run through spacing groove (13), fixedly connected with support frame (17) on the lateral wall of stopper (16), it has broken wheel (11) to rotate to be connected with on the lateral wall of support frame (17), the terminal lateral wall that runs through support frame (17) and the lateral wall of broken wheel (11) of discharge pipe (9), a plurality of locking grooves (18) have been seted up on the lateral wall of broken wheel (11), fixedly connected with fixed box (19) on the inside wall of locking groove (18), constant head tank (20) have been seted up to the symmetry on the inside wall of fixed box (19), sliding connection has broken needle (21) on the inside wall of constant head tank (20), feed port (22) have been seted up to the symmetry on the lateral wall of broken needle (21), connecting hole (26) have been seted up to the symmetry on the lateral wall of fixed case (19), fixedly connected with opening mechanism on the lateral wall of broken needle (21), the end and the ground of broken needle (21) are held tightly, fixedly connected with pull ring (27) on the lateral wall of support frame (17), a plurality of discharge holes have been seted up on the lateral wall of broken needle (21).
2. The device for breaking the soil hardening after wheat seeding with high efficiency as claimed in claim 1, wherein the material conveying mechanism comprises a spiral output rod (8) rotatably connected to the inner side wall of the conveying box (6), the end of the spiral output rod (8) penetrates through the outer side wall of the conveying box (6), and the end of the spiral output rod (8) is fixedly connected with the end of the output shaft of the driving motor (5).
3. The efficient wheat after-sowing soil hardening breaking device as claimed in claim 1, wherein the damping mechanism comprises a locking rod (14) fixedly connected to the inner side wall of the installation cavity (12), the locking rod (14) penetrates through a limiting block (16), a damping spring (15) is fixedly connected to the outer side wall of the locking rod (14), and the tail end of the damping spring (15) is fixedly connected with the outer side wall of the limiting block (16).
4. The efficient wheat after-sowing soil hardening breaking device as claimed in claim 1, wherein the opening mechanism comprises a transmission rod (23) fixedly connected to the outer side wall of the breaking needle (21), the transmission rod (23) penetrates through the outer side wall of the fixing box (19), the end of the transmission rod (23) is fixedly connected with a closing plate (24), the outer side wall of the transmission rod (23) is fixedly connected with a pressure spring (25), and the end of the pressure spring (25) is fixedly connected with the outer side wall of the breaking needle (21).
5. The efficient wheat after-sowing soil hardening breaking device as claimed in claim 3, wherein the damping spring (15) is wound around the outer side wall of the locking rod (14), and the damping spring (15) is made of spring steel.
6. The efficient wheat after-sowing soil plate breaking device as claimed in claim 4, wherein the pressure spring (25) is communicated with the outer side wall of the transmission rod (23), and the material of the pressure spring (25) is austenitic stainless steel.
7. The efficient wheat after-sowing soil hardening breaking device as claimed in claim 1, wherein said mounting cavity (12) is communicated with a limiting groove (13).
CN202110055799.4A 2021-01-15 2021-01-15 High-efficient wheat is sowed back soil and is hardened and broken device Active CN112889377B (en)

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CN112889377B true CN112889377B (en) 2022-04-26

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GB1335268A (en) * 1971-04-15 1973-10-24 Hollins A Agricultural machinery
CN201398278Y (en) * 2009-03-13 2010-02-10 山西省农业科学院旱地农业研究中心 Hardened top soil breaker for crop seedlings emerge
CN106238448A (en) * 2016-08-26 2016-12-21 何颖 Farmland soil of sewage irrigation area prosthetic device and restorative procedure thereof
CN108525814A (en) * 2018-05-28 2018-09-14 王丹 A kind of mining cycle iron removal by magnetic separation device
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