CN115024061A - Cam connecting rod combined duckbill opening and closing mechanism - Google Patents
Cam connecting rod combined duckbill opening and closing mechanism Download PDFInfo
- Publication number
- CN115024061A CN115024061A CN202210855738.0A CN202210855738A CN115024061A CN 115024061 A CN115024061 A CN 115024061A CN 202210855738 A CN202210855738 A CN 202210855738A CN 115024061 A CN115024061 A CN 115024061A
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- cam
- duckbill
- opening
- closing mechanism
- connecting rod
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- 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
-
- Y—GENERAL 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
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A40/00—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production
- Y02A40/10—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production in agriculture
- Y02A40/28—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production in agriculture specially adapted for farming
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- Life Sciences & Earth Sciences (AREA)
- Soil Sciences (AREA)
- Environmental Sciences (AREA)
- Sowing (AREA)
Abstract
The invention relates to the technical field of agricultural machinery, and particularly discloses a cam-connecting rod combined duckbill opening and closing mechanism; the seeding roller comprises a duckbill assembly and a cam, wherein a connecting rod assembly is arranged on the seeding roller, the profile surface of the cam is composed of sine acceleration arc surfaces at two sides and an arc surface in the middle, the connecting rod assembly comprises a shifting rod connected with the duckbill assembly and a direct-acting part acting with the cam, an elastic part is arranged between the shifting rod and the seeding roller, one end of the direct-acting part is connected with the shifting rod through a pin-slot pair, and the other end of the direct-acting part acts on the profile surface of the cam; this cam connecting rod combination duckbill opening and closing mechanism has guaranteed the stable seed metering of seed metering cylinder, and makes the duckbilled keep the most open state out of earth and not press from both sides soil at the seed metering in-process, and driving lever and straight piece make the effect transmission angle for 90 constantly with the vice connection design of cotter way simultaneously, have promoted the cam mechanism drive and have moved the effective utilization ratio of the effort that the duckbilled opened, reduce the cam and open the effort that receives because of the duckbilled.
Description
Technical Field
The invention relates to the technical field of agricultural machinery, and particularly discloses a cam-connecting rod combined duckbill opening and closing mechanism.
Background
Duckbilled disseminator is a common agricultural seeding machine, and the duckbilled opening and closing mechanism on the existing seeding roller is mainly divided into two types of passive pressing plate type and forced opening type. Wherein, passive clamp plate formula duckbilled opening and closing mechanism relies on the clamp plate that the extrusion of seed metering cylinder gravity lies in the cylinder periphery, overcome the inboard spring force drive of clamp plate and move the duckbilled and open, treat that the clamp plate loses seed metering cylinder gravity after, it is closed to make the duckbilled with the help of spring force, but because the clamp plate bears the action of seed metering cylinder's gravity on the plastic film of earth's surface, the plastic film is easily destroyed, and the clamp soil in the spring, the stone, impurity etc., can cause to move duckbilled and can not open completely and closed, the degree of opening that moves the duckbilled easily receives earth's surface soil hardness, the influence of roughness. The main part of forcing open-type duckbilled mechanism that opens and shuts is generally the cam mechanism of swing follower, the cam profile is single circular arc section, make the process of opening and shutting of moving the duckbilled all have obvious impact vibration, influence the inside stable seed filling of seed metering cylinder, simultaneously because the cam profile does not have the unchangeable long angle of repose design of footpath, make move the duckbilled and do not have stable opening time, make move the duckbilled opening degree and get into closed process immediately after the biggest, the duckbilled that leads to not unearthing takes place to press from both sides native phenomenon, cause the duckbilled interior seed can't in time discharge even, thereby influence the follow-up of seed metering cylinder and seed metering.
For example, utility model patent that application number is CN2015201230782 just discloses a cam-type cavitation ware, including the driving disk, the duckbilled of setting on the driving disk circumference, the inside wheel chamber that is equipped with of driving disk, duckbilled and wheel chamber intercommunication, the quotation center of driving disk is equipped with the cam disc, evenly be provided with the actuating lever around the cam disc on the driving disk, actuating lever swing joint is in the quotation of driving disk, be provided with the reset spring corresponding with the actuating lever in the quotation of driving disk, reset spring is connected with the pole body of actuating lever, the portion of opening of duckbilled is equipped with the driven lever, the one end of actuating lever is passed through the connecting rod and is connected with the driven lever, the other end and the cam disc circumference contact of actuating lever. The utility model discloses a duckbilled is exactly the mechanism that opens and shuts of force open-type duckbilled in the patent, but the structural design of cam disc makes the action that opens and shuts of duckbilled only can open to the biggest gradually in this patent, then closed in the twinkling of an eye again for the duckbilled state that opens and shuts is the biggest does not maintain a period, leads to the duckbilled closed process to cause the duckbilled to press from both sides soil in soil. In addition, the duckbilled is closed instantly under the action of the spring, obvious impact vibration exists, and stable seed filling in the seeding roller is influenced. Based on the technical problems of the existing passive pressing plate type duckbill opening and closing mechanism and the existing forced opening type duckbill opening and closing mechanism, the invention designs the cam connecting rod combined duckbill opening and closing mechanism which can effectively solve the technical problems.
Disclosure of Invention
The invention aims to design a cam connecting rod combined duckbill opening and closing mechanism which can effectively solve the technical problems and is applied to a duckbill seeder, aiming at the problems that the existing passive pressing plate type duckbill opening and closing mechanism is easy to damage mulching films, clamps foreign matters and cannot be completely opened and closed, and the existing forced opening type duckbill opening and closing mechanism has obvious impact vibration and unstable opening time of a movable duckbill during opening and closing.
The invention is realized by the following technical scheme:
a cam-link combined duckbill opening and closing mechanism comprises a duckbill component arranged on a seeding roller and a cam fixed on a shaft, the seeding roller is provided with a connecting rod component, one end of the connecting rod component acts on the corresponding duckbilled component to realize opening and closing, the other end of the connecting rod component acts with the cam in the rotating process along with the seeding roller, the profile surface of the cam which is acted with the connecting rod component consists of sinusoidal acceleration cambered surfaces at two sides and a middle cambered surface, the connecting rod component comprises a driving lever connected with the duckbill component and a linear motion component acted with the cam, an elastic piece for realizing the rotation reset of the deflector rod is arranged between the deflector rod and the seeding roller, a guide piece for realizing the radial movement of the direct-acting piece is arranged on the seeding roller, one end of the straight moving piece is connected with the deflector rod through a pin slot pair, and the other end of the straight moving piece penetrates through the guide piece to act on the profile surface of the cam.
This cam connecting rod combination duckbilled mechanism that opens and shuts is through carrying out special design to the cam, the profile face that acts on cam and link assembly adopts sinusoidal acceleration arc section and circular arc section combination form, will move the duckbilled opening and the closed process corresponds the sinusoidal acceleration curve profile of cam push-up journey and return stroke respectively, make to move the duckbilled from opening and begin until opening to the maximum angle, and the maximum angle begins until closed process all does not have impact vibration, effectively avoid the seed and seed metering process that feed of seed metering cylinder to receive impact vibration's influence, the seed metering stable performance of seed metering cylinder has been guaranteed.
In addition, this cam connecting rod combination duckbilled mechanism that opens and shuts still carries out institutional advancement to link assembly, has adopted driving lever and the structure of directly moving the piece to adopt the vice link of groove pin between the two, the guide effect of deuterogamying guide makes the transmission angle of directly moving a drive driving lever be 90 constantly, thereby promotes the cam mechanism drive and moves the effective utilization ratio of the effort that the duckbilled opened, reduces the cam and opens the effort that receives because of the duckbilled, can prolong cam mechanism spare part life.
As the concrete setting of above-mentioned scheme, the duckbilled subassembly is including deciding the duckbilled and moving the duckbilled, decide duckbilled fixed connection on seeding cylinder's periphery, move the duckbilled and rotate through the driving lever and connect on deciding the duckbilled.
As a specific arrangement of the proposal, the seeding roller rotates around a shaft, and the cam is fixedly connected on the shaft on the outer side surface of the seeding roller.
As a specific arrangement of the above scheme, the push stroke starting point of the cam profile surface is arranged at the contact point of the top end of the linear motion member and the cam profile surface when the duckbill assembly is at the deepest position of soil.
According to the specific arrangement of the scheme, the return stroke termination point on the cam contour surface is arranged at a position above the contact point of the top end of the linear motion part and the arc surface of the cam when the duckbill assembly keeps the maximum opening state out of the soil, and the included angle between the fixed duckbill and the horizontal plane when the top end of the linear motion part is located at the return stroke termination point is larger than the sliding friction angle between the soil and the fixed duckbill.
The aforesaid is through further setting up the relation between pushing away journey initial point, return stroke termination point and the slip friction angle, makes fixed duckbill and horizontal plane contained angle be greater than soil and the slip friction angle of deciding the duckbill, can ensure on the one hand that the duckbill fully throws kind, can and avoid moving the duckbill closed in earth and cause duckbilled double-layered soil and get into the earth flow that decides the duckbill and advance the seed metering cylinder on the two sides.
In the specific arrangement of the scheme, the elastic part is a torsion spring, one end of the torsion spring is connected with the circumferential surface of the sowing roller, and the other end of the torsion spring acts on a deflector rod connected with the direct-acting part.
In a specific arrangement of the above scheme, the guide member is a linear bearing seat, and the straight moving member is a straight moving rod matched with the linear bearing seat.
As a further arrangement of the above scheme, the movable end of the straight moving part is connected with a butting wheel, and the butting wheel is butted against the profile on the cam.
Compared with the disclosed technology, the advantages of the invention include:
1) according to the invention, through the special design of the contour shape of the cam, the duckbill assembly can not generate impact vibration when switching among the opening, opening and closing maintaining states and the closing state, so that the seeding performance of the seeding roller is stable, and the service life of the whole mechanism part is prolonged.
2) According to the duckbilled seed discharging device, the duckbilled opening state can be stably maintained for a period of time by the arc section arranged in the cam profile, so that the duckbilled seed discharging is more sufficient, the included angle between the fixed duckbill and the horizontal plane is larger than the sliding friction angle between soil and the fixed duckbill at the position of the termination point of the arc section, the duckbilled is ensured to be kept in the maximum opening state to discharge soil, and the phenomenon that the duckbilled soil is clamped and the soil entering the fixed duckbill flows into the seed discharging roller due to the fact that the movable duckbill is closed in the soil is avoided.
3) According to the invention, the deflector rod and the direct-acting part are connected by adopting the groove pin pair, and the transmission angle of the acting force of the connecting component is constant to 90 degrees under the guiding action of the direct-acting part, so that the effective utilization rate of the acting force of the cam mechanism for driving the movable duckbill to open is improved, the acting force of the cam mechanism for opening the duckbill is reduced, and the service life of parts of the cam mechanism is prolonged.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a schematic front view of the entire duckbilled disseminator of the present invention;
FIG. 2 is a schematic perspective view of the entire duckbilled disseminator of the present invention;
FIG. 3 is a schematic structural diagram of a profile cam according to the present invention;
fig. 4 is a schematic perspective view of a direct-push type linkage mechanism and duckbill assembly according to embodiment 2 of the present invention.
Detailed Description
In order to make the technical solutions of the present application better understood by those skilled in the art, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only some embodiments of the present application, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict. The present application will be described in detail with reference to the accompanying drawings 1 to 4, in conjunction with the embodiments.
Example 1
Embodiment 1 discloses a special-shaped cam duckbill opening and closing mechanism, and the duckbill opening and closing mechanism is explained below in combination with the whole duckbill seeder. Referring to fig. 1 and 2, the duckbilled seeder comprises a seeding roller 1 and a shaft 9, wherein the shaft 9 is in interference fit with a bearing at the center of the end surface of the seeding roller 1, so that the whole seeding roller 1 can rotate around the shaft 9.
A plurality of duckbilled assemblies are uniformly arranged on the circumferential surface of the sowing roller 1, and the number of the specific duckbilled assemblies is determined by the size of the sowing machine, the application object and other factors. This duckbilled subassembly includes fixed duckbill 4 and the rotation of fixed connection on 1 periphery of seeding cylinder and connects the duckbilled 3 that moves on fixed duckbill 4 to move duckbill 3 and can wrap up fixed duckbilled 4 design, make and move duckbilled 3 closed can prevent to leak kind when deciding duckbill 4.
The end part of the shaft 9 extending out of the front side surface of the sowing roller 1 is fixedly connected with a special-shaped cam 2 through a flange, the structure of the special-shaped cam 2 can refer to the attached figure 3, the profile surface of the special-shaped cam 2 consists of two sections of sine acceleration cambered surfaces and one section of circular arc surface, the two sections of sine acceleration cambered surfaces are arranged at two sides of the profile of the special-shaped cam 2, and the circular arc surface is arranged in the middle.
The included angle phi corresponding to one section of the sinusoidal acceleration cambered surface is a cam pushing range motion angle, the cam pushing range motion angle phi corresponds to the motion process of opening the movable duckbill 3, and the starting point of the cam pushing range motion angle phi is arranged on the plumb line, namely the movable duckbill 3 is positioned on the vertical extension line of the deepest soil. Included angle phi corresponding to arc surface 1 The cam remote angle of repose corresponds to the process that the movable duckbill 3 keeps opening stably, and the cam remote angle of repose phi 1 Go up corresponding return stroke termination point and guarantee that duckbilled assembly unearths to make and decide duckbilled 4 and horizontal plane contained angle and be greater than soil and decide the sliding friction angle setting of duckbilled 4. With another section of sinusoidal acceleration corresponding to the arc surfaceAngle phi of inclination 2 The cam return motion angle corresponds to the motion process of the movable duck bill 3 closing.
Finally, with reference again to fig. 1 and 2, a driving lever drive is provided on the sowing cylinder 1 in correspondence with each movable duckbill 3, which is of conventional design. Be provided with between driving lever driving piece and seeding cylinder 1 and realize driving lever driving piece pivoted elastic component 5, this elastic component 5 can choose for use the torsional spring, with the one end and the 1 fixed connection of seeding cylinder of torsional spring, the other end acts on the driving lever driving piece. One end of the driving lever driving piece is connected with the movable duckbill 3 and used for driving the movable duckbill 3 to open and close, and the other end can act with the profile on the special-shaped cam 2 along with the rotation process of the seeding roller 1, so that the movable duckbill 3 is opened and the maximum opening and closing state and the closing process are kept.
Example 2
Referring to fig. 1, 2 and 4, the driving lever driving member of this embodiment 2 is a direct-push type link mechanism, which includes an L-shaped driving lever 6 and a direct-acting member 7, one end of the driving lever 6 is welded to the movable duckbill 3 and is rotatably connected to the fixed duckbill 4, and the other end of the driving lever 6 is movably connected to the direct-acting member 7 through a pin-slot pair 601. When the straight moving piece is specifically arranged, a strip groove is formed in the end portion of the shifting rod 6, strip holes are formed in two side walls of the strip groove, then the end portion of the straight moving piece 7 extends into the strip groove, and the end portion of the straight moving piece 7 is connected with a pin rod, so that two ends of the pin rod extend into the corresponding strip holes to be arranged.
Simultaneously, the elastic component 5 in this embodiment 2 also chooses the torsional spring for use, and this torsional spring is whole to be established on driving lever 6, then links firmly the one end of torsional spring on seeding cylinder 1, and the other end effect is on driving lever 6 to can realize driving lever 6's rotatory restoration under the effect of torsional spring.
The side surface of the seeding roller 1 is fixedly provided with a guide piece 8 corresponding to each driving lever driving piece, the guide piece 8 can be a linear bearing seat during specific setting, and the linear moving piece 7 is a linear moving rod matched with the linear bearing seat. The linear motion member 7 is movable in the radial direction of the sowing cylinder 1 under the action of the guide member 8 and by the connecting action of the pin-and-slot pair 601, so that the end of the linear motion member 7 can abut against the profile of the shaped cam 2 during rotation with the sowing cylinder 1. When the end of the linear motion part 7 is contacted with the starting point of the cam pushing range motion, the position where the end of the linear motion part 7 is contacted with the profile of the special-shaped cam 2 when the movable duck bill 3 is in the deepest soil corresponds to the moment. Meanwhile, the return stroke termination point of the profile of the special-shaped cam 2 is arranged at a position above the arc surface contact point of the top end of the direct-acting part 7 and the special-shaped cam 2 when the duckbill assembly keeps the maximum opening state and is excavated. Simultaneously still will satisfy when directly moving 7 tops and being located the return stroke termination point, decide duckbill 4 and horizontal plane contained angle and be greater than soil and the sliding friction angle of deciding the duckbilled for soil can the landing in the duckbilled subassembly.
Finally, in order to reduce the friction force when the straight moving piece 7 is in contact with the profile of the special-shaped cam 2 and the abrasion between the straight moving piece 7 and the special-shaped cam 2 during long-term operation, a contact wheel 701 is further arranged at the end part of the straight moving piece 7, and the friction force and the abrasion between the straight moving piece 7 and the profile of the special-shaped cam 2 can be effectively reduced through the direct contact between the contact wheel 701 and the profile of the special-shaped cam 2.
The present invention is not limited to the above preferred embodiments, and any modifications, equivalent substitutions and improvements made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (8)
1. A cam-link combined duckbill opening and closing mechanism comprises a duckbill component arranged on a seeding roller and a cam fixed on a shaft, the seeding roller is provided with a connecting rod assembly, one end of the connecting rod assembly acts on the corresponding duckbilled assembly to realize opening and closing, the other end of the connecting rod assembly acts with the cam in the rotating process along with the seeding roller, it is characterized in that the profile surface of the cam, which is acted with the connecting rod component, is composed of sinusoidal acceleration cambered surfaces at two sides and a cambered surface in the middle, the connecting rod component comprises a driving lever connected with the duckbill component and a linear motion component acted with the cam, an elastic piece for realizing the rotation reset of the deflector rod is arranged between the deflector rod and the seeding roller, a guide piece for realizing the radial movement of the direct-acting piece is arranged on the seeding roller, one end of the straight moving piece is connected with the deflector rod through a pin slot pair, and the other end of the straight moving piece penetrates through the guide piece to act on the profile surface of the cam.
2. The cam-link combination duckbill opening and closing mechanism according to claim 1, wherein the duckbill assembly includes a fixed duckbill fixedly connected to a circumferential surface of the seed roller and a movable duckbill rotatably connected to the fixed duckbill by a shift lever.
3. The cam-link combination duckbill opening and closing mechanism of claim 2 wherein the starting point of the stroke of said cam profile is located at the contact point of the tip of the linear motion member with the cam profile when the duckbill assembly is at the deepest depth in the soil.
4. The cam-link combination duckbill opening and closing mechanism of claim 3 wherein the return travel termination point on the cam profile surface is located above the contact point of the tip of the linear motion member with the circular arc surface of the cam when the duckbill assembly remains in the maximum open position out of the earth, and the angle between the fixed duckbill and the horizontal plane when the tip of the linear motion member is located at the return travel termination point is greater than the sliding friction angle between the soil and the fixed duckbill.
5. The cam-link combination duckbill opening and closing mechanism of claim 1 wherein said seed roller is rotatably disposed about an axis, said cam being fixedly attached to the axis on the outside of the seed roller.
6. The cam-link combination duckbill opening and closing mechanism of claim 1 wherein said elastic member is a torsion spring, one end of said torsion spring is connected to the circumferential surface of the sowing roller, and the other end of said torsion spring acts on a lever connected to the linear motion member.
7. The cam-link combination duckbill opening and closing mechanism of claim 1 wherein said guide member is a linear bearing seat and said linear moving member is a linear moving rod matching said linear bearing seat.
8. The cam-link combination duckbill opening and closing mechanism of claim 7 wherein the movable end of the straight moving member is connected to an abutment wheel, the abutment wheel being disposed in abutment with a contoured surface on the cam.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210855738.0A CN115024061A (en) | 2022-07-20 | 2022-07-20 | Cam connecting rod combined duckbill opening and closing mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210855738.0A CN115024061A (en) | 2022-07-20 | 2022-07-20 | Cam connecting rod combined duckbill opening and closing mechanism |
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| Publication Number | Publication Date |
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| CN115024061A true CN115024061A (en) | 2022-09-09 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210855738.0A Pending CN115024061A (en) | 2022-07-20 | 2022-07-20 | Cam connecting rod combined duckbill opening and closing mechanism |
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| CN (1) | CN115024061A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116889168A (en) * | 2023-09-11 | 2023-10-17 | 安徽农业大学 | Electric heating type membrane-breaking hole device of hill planter |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1726749A (en) * | 2004-07-26 | 2006-02-01 | 山东理工大学 | Steering wheel type dibbler for separately hole sowing fertilizer |
| CN101548604A (en) * | 2009-05-13 | 2009-10-07 | 山东理工大学 | Steering-wheel type cavitation disseminator with moving and stable vanes |
| CN103609238A (en) * | 2013-12-24 | 2014-03-05 | 湖南农业大学 | Transplanting mechanism capable of implementing continuous perpendicular planting |
| CN203505016U (en) * | 2013-10-29 | 2014-04-02 | 甘肃农业大学 | Self seeding dibbling wheel |
| CN204482272U (en) * | 2015-03-03 | 2015-07-22 | 甘肃农业大学 | Cam-type indenting tool |
| JP2017000096A (en) * | 2015-06-11 | 2017-01-05 | ヤンマー株式会社 | Drum type direct sower |
-
2022
- 2022-07-20 CN CN202210855738.0A patent/CN115024061A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1726749A (en) * | 2004-07-26 | 2006-02-01 | 山东理工大学 | Steering wheel type dibbler for separately hole sowing fertilizer |
| CN101548604A (en) * | 2009-05-13 | 2009-10-07 | 山东理工大学 | Steering-wheel type cavitation disseminator with moving and stable vanes |
| CN203505016U (en) * | 2013-10-29 | 2014-04-02 | 甘肃农业大学 | Self seeding dibbling wheel |
| CN103609238A (en) * | 2013-12-24 | 2014-03-05 | 湖南农业大学 | Transplanting mechanism capable of implementing continuous perpendicular planting |
| CN204482272U (en) * | 2015-03-03 | 2015-07-22 | 甘肃农业大学 | Cam-type indenting tool |
| JP2017000096A (en) * | 2015-06-11 | 2017-01-05 | ヤンマー株式会社 | Drum type direct sower |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116889168A (en) * | 2023-09-11 | 2023-10-17 | 安徽农业大学 | Electric heating type membrane-breaking hole device of hill planter |
| CN116889168B (en) * | 2023-09-11 | 2023-12-05 | 安徽农业大学 | Electric heating type membrane-breaking hole device of hill planter |
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