CN203467331U - Mechanical device for shoveling and raking residual mulching films on farmland - Google Patents
Mechanical device for shoveling and raking residual mulching films on farmland Download PDFInfo
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- CN203467331U CN203467331U CN201320281001.9U CN201320281001U CN203467331U CN 203467331 U CN203467331 U CN 203467331U CN 201320281001 U CN201320281001 U CN 201320281001U CN 203467331 U CN203467331 U CN 203467331U
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Abstract
The utility model discloses a mechanical device for shoveling and raking residual mulching films on farmland. The mechanical device comprises a film peeler transverse beam (1), a three-point hanger (2), a big support arm (3), film peeler front shovels (4), film peeler rear shovels (5), and a film raking finger plate (6), wherein a lower beam of the three-point hanger (2) is additionally provided with the film peeler transverse beam (1); the film peeler front shovels and the film peeler rear shovels are hung on the film peeler transverse beam in a staggered way; and the film raking finger plate uniformly equipped with finger plate elastic teeth (12) is arranged on a shaft head of a small support arm (7) of a film raker. The mechanical device for shoveling and raking the residual mulching films on the farmland is high in residual mulching film raking efficiency and over one hectare of rubbish can be raked per hour with 60-90 horsepower; the cover earth and stubbles on the surface layer can be completely shoveled to loose by the film peeler; the residual films are unlikely to be pulled to be broken, the movement resistance is small, the damage to the farmland is small, and the films and the rubbish are raked to strips, thereby being easy to pick and mechanically packaged to transport.
Description
Technical field
The utility model belongs to the technical field of administering farmland incomplete film white pollution, relates to the mechanization recovery technology of residual film, more specifically says that a kind of shovel hugs the mechanical device of farmland residual mulching film.
Background technology
Before more than 30 year, film-mulching technique starts application in China.Because it is huge to agriculture contribution, develop very soon, application region and scope are increasing, and particularly along with the application of agricultural mulching on field crop, residual mulching film pollutes the attention that starts to cause researcher.The residual film fragment severe contamination soil that is difficult for degraded, because mulch film residual contamination is a kind of novel pollution, at the initial stage of film-mulching technique application, people's more attention is that heating of film-mulching technique preserves soil moisture and effect of increasing production, and mulch film residual contamination problem is paid close attention to seldom, many people think that the residual mulching film in ground hugs, with hand, picks up with rake, or translate in ground, just handled well, can not pollute, even, at present, this problem does not still arouse enough attention.The Ministry of Agriculture showed the investigation of national 72Ge provinces and cities in early 1990s, all had residual contamination in various degree in the agricultural land soil of all plastic mulching.
From the nineties in 20th century, China's plastic mulching area and usage amount occupy No. 1 in the world always.In recent years, mulch film application quantity remains on more than 1,100,000 tons substantially, and year area coverage surpasses 200,000,000 mu, if account for usage amount 20%～30% according to annual mulch film residual quantity, calculates, and means in annual farmland and will increase 200,000～300,000 tons of residual films newly.Troubling, agricultural mulching usage amount and area coverage present the situation that significantly rises always, and will continue to keep stable increasing at quite a long period Nei， China mulch film consumption from now on.The mulch film consumption continuing to increase and the residual film pollution prevention ，Jiang Shi China farmland incomplete film relatively lagging behind are seriously polluted.Do not clear up the residual mulching film in soil, the seed that peasant sows may be wrapped by residual film, or residual film intercepts the moisture in soil, and seed is rotted, and causes that crops are short of seedling, the underproduction.According to surveying and determination, the with serious pollution soil of residual film can make wheat yield decline 2%～3%, corn yield 11% left and right that declines, output of cotton declines 11%～23%, the harm of residual mulching film in soil becomes increasingly conspicuous, be a very serious problem, concerning national food safety, should cause that country pays much attention to.
High efficiency, residual film is collected in high-quality mechanization becomes a difficult problem.The residual film machine recovery technology growing up is at present the supporting technology growing up for plastic-film-covered cultivation technology, and it is a Mechanization Technique of the damaged mulch film of film-covering planting crop being collected after seedling stage or results by mechanical method.Reclaim farmland incomplete film, through harmless treatment, can turn waste into wealth.Residual film is a kind of discarded object of the farmland of causing harm.By centralized recovery, after harmless treatment, can be converted into a kind of available resources.By cleaning, can be used as a kind of regeneration interpolation property raw material; Also can be converted into electric power by incineration firing forms of electricity generation.Under existing situation, promote residual mulching film and reclaim Mechanization Technique, reduce the harmful effect that residual film causes soil structure, crop growth, eliminate farmland white pollution, improve rural environment quality.Promotion and implementation machine for recovering broken film tool complex art, administers farmland incomplete film white pollution, is conducive to improve Ecological Environment, promotes agricultural sustainable development, promotes this city Agro-ecology, promotes new countryside construction.
Based on agricultural later stage nineties dry area in north china, be the pesticide meridian crops such as preserving soil moisture, the insulation large area plastic film mulch maize planting that improves emergence rate and start, cotton, vegetables, peanut, herbal medicine, initial stage has reached the object of stable high yield, but the residual film fragment severe contamination soil that is difficult for degraded, disastrous effect is well-known.High efficiency, residual film is collected in high-quality mechanization becomes a difficult problem.At present 2 ~ 3 years residual film initial stages in farmland are with rotary tillage, are exactly directly with rotovator, to break into pieces and stir in the soil layer of 10 ~ 18 centimetres or with ploughing (formula of drawing is ploughed), residual film translated into 20 ~ 30 cm layer of soil prior to seeding.No matter the residual film accumulation of ploughing or rotary tillage has a strong impact on sowing and emerges and causes crop failure after 3 years, common little plot is hugged heap by creeper Ziren work and is burnt, film is hugged with graduated dial formula hay rake in large plot, but approximately have 30 ~ 40% earthing press molds parts and disconnected broken film hug less than, follow-uply still produce the alluvial of residual film, and a brief period of time is easily broken; With T-shaped rake (creeper amplifying with tractor-drawn), hug shape in heaps.Such processing is interrupted, is unfavorable for that follow-up mechanization packing clears, and burns also and can emerge because heap shape combustible burns impact by soil.A lot of local residual film is shifted onto in irrigation canals and ditches or hole, Wild vegetation suffers destruction, have a strong impact on the important factor in order of natural water storage drainability ，Zhe Shi China drought and waterlogging sensitivity of the original system in soil.Above residual film hugs that diversity method efficiency is low, weak effect.
Summary of the invention
An object of the present utility model is to disclose the mechanical device that a kind of shovel is hugged residual mulching film.
The shovel of the utility model design is hugged mechanical device loosening shovel and the ground angle little (0 ~ 7 degree) of residual mulching film, and resistance is little, can become flexible afterwards the residual mulching film of soil shallow-layer by comprehensive sliding trackle root stubble.Elastic claw is evenly contained on the circumference of hugging film machine graduated dial, and graduated dial when rotation elastic claw is easy to stir hugs collection.Many 20 ~ 40 compared with hay rake of elastic claw quantity, hug and dial that efficiency is high, graduated dial load is even.Winder rate is greater than 90%, on average operating efficiency be take 8 dishes as example, and 90 horsepowers of tractor dynamic powers are more than 20 mu/hour.4 width mulch films are hugged to integrated 1 paving, can use binder bundling, also can manually pick up entrucking and clear.Skinning device crossbeam is connected with U-bolt with trifilar suspension frame simultaneously, can accept or reject according to the concrete condition in soil, loosening shovel is also connected with U-bolt with skinning device crossbeam, and loosening shovel can be according to plantation agronomy, plastic film mulch earthing and adjustment installation site, root stubble position and number of the arrangement, and the utility model becomes current pulled straight, for elastic claw rotation is stirred, residual film is not easy-to-draw broken, and the resistance of motion is little, little to the destruction in soil, hug collection windrow, be easy to pick up and mechanization packing and transporting.
For achieving the above object, the utility model discloses following technology contents:
Shovel is hugged a mechanical device for farmland residual mulching film, and it comprises skinning device crossbeam 1, trifilar suspension frame 2, large support arm 3, skinning front shovel 4, skinning rear shovel 5, hugs film graduated dial 6; Under trifilar suspension frame 2 underbeams, install skinning device crossbeam 1 additional; Skinning front shovel 4 and skinning rear shovel 5 are staggered front to back and hang on skinning device crossbeam 1; Hug film graduated dial 6 and be contained on the spindle nose of hugging film machine ramuscule arm 7, hug the uniform elastic claw 12 of installing on film graduated dial 6.
Number of hugging film graduated dial 6 described in the utility model is 6-8, and each diameter of hugging film graduated dial is 1.1 ~ 1.7 meters.
Skinning device crossbeam 1 described in the utility model adopts U-bolt 9 to be connected with trifilar suspension frame 2; Large support arm 3 hangs on trifilar suspension frame 2 by spring pull bar 8 with trifilar suspension frame 2.
Skinning device crossbeam 1 described in the utility model adopts U-bolt 9 to be connected with 4-8 skinning rear shovel with 3-7 skinning front shovel.Skinning front shovel and ground angle are that 0 ~ 5 degree, skinning rear shovel and ground angle are 1 ~ 7 degree.
The material of elastic claw 12 described in the utility model is spring steel, and elastic claw diameter is 6 millimeters-10 millimeters.The number of teeth of elastic claw (12) is 40 ~ 80 teeth, and hugging film width is 3 ~ 7 meters.Evenly be contained on the circumference of hugging film graduated dial 6, while hugging the passive rotation of film graduated dial, elastic claw is easy to stir and hugs collection.
Graduated dial wheel rim 10 described in the utility model is used for supporting elastic claw 12, graduated dial disc 11 and is used for fixedly elastic claw 12 of calibration.
The utility model further discloses the using method that shovel is hugged farmland residual mulching film mechanical device, it is characterized in that being undertaken by following step:
(1) first skinning device is connected to the degree of depth of then controlling and adjusting shovel film, hug film with the hydraulic lifting mechanism of tractor with trifilar suspension frame;
(2) before skinning device is positioned at and hugs film graduated dial touchdown point, skinning front shovel and skinning rear shovel are hugged first back chipping stubble before film, are loosened the soil, skinning;
(3) hydraulic lifting of then applying tractor is pressed into 3 ~ 9 centimetres of soil layers by the skinning device elastic claw on graduated dial in advance, elastic claw is in by pressure condition, the walking of tractor rotates the elastic claw release elastic force on passive graduated dial, stir residual film and the foreign material of soil shallow-layer and to centre, hug integrated paving, follow-up can mechanization bundling or pick up entrucking and work continuously.
The film graduated dial 6 of hugging described in the utility model can be as required exchanges with conventional hay rake graduated dial, removes the function after skinning device with hay rake.
The products innovation that the shovel of the utility model manufacture is hugged the mechanical device of farmland residual mulching film is mainly:
1. improve graduated dial: the passive graduated dial of hay rake is encrypted elastic claw, and the elastic claw that namely the utility model is hugged on film graduated dial changes 40 elastic claws of original every dish into every dish 60 ~ 80 elastic claws, and main purpose is to hug collection rate in order to improve broken film, sees accompanying drawing 1.
2. trifilar suspension design: the hydraulic lifting of application tractor is pressed into soil layer 30 ~ 90mm by the skinning device elastic claw on graduated dial in advance, elastic claw is in by pressure condition, the walking of tractor rotates the elastic claw release elastic force on passive graduated dial, stir residual film and foreign material and to centre, hug integrated paving, follow-up can mechanization bundling or pick up entrucking and work continuously.
Innovative design play film device: the plastic film mulch edge earthing on agronomy makes residual film very easily by elastic claw cutting-off, affect winder rate, after improvement, on trifilar suspension frame 2 underbeams, install skinning device crossbeam 1 additional, base area film web is wide, definite film graduated dial width and the skinning device elastic claw quantity of hugging of the power of tractor coupling, before and after loosening shovel, stagger and hang on skinning device crossbeam 1, make membrane process not leak row, not block up, reached comprehensive skinning.
The mechanical device product that the utility model is hugged residual mulching film to shovel has carried out Performance Detection:
Detection method: (7 to 11 kilometers of tractor speed per hours)
First make the skinning device of a combination and make field trial, determine the loosening shovel structure of burying, loosening the soil suitable; Use for reference the operation experience of hay rake, hug careless operation elastic claw in graduated dial 1 ~ 4 centimetre of predeformation radially, with 40 elastic claws, elastic claw material is 65Mn, and Brinell hardness is average 30,6 millimeters of elastic claw diameters; Hug film operation elastic claw in graduated dial 3 ~ 6 centimetres of predeformation radially, with 80 elastic claws, elastic claw material is 82B, and Brinell hardness is average 35,6.5 millimeters of material diameter.Use for reference the operation experience of plough, subsoiler, cultivator, calculate loosening shovel angle and shovel post shapes, through test repeatedly, loosening shovel angle block gauge is fixed on to 0 to 5 degree, its object is to reduce resistance; The large module of anti-bending section that loosening shovel shovel post shapes is defined as under front recessed crescent (as Fig. 2), small bore is narrow thick square-section (along direction of advance), and its object is counter-bending deformability by force and weight reduction refers to following table:
| Content of the test | Dimension | Test bit n1 | Test bit n2 | Test bit n4 | Test bit n6 |
| Front loosening shovel angle | Degree | ? | 3 | 2 | 1 |
| Rear loosening shovel angle | Degree | 5 | 5 | 5 | 4 |
| Shovel post shapes (loosening shovel) | ? | Recessed month shape pachydermia pipe | Recessed month rectangular slab | Recessed month rectangular slab | Recessed month rectangular slab |
| Shovel quantity | Individual | 7 | 9 | 9 | 11 |
| Shovel is arranged front/rear | Individual | 0/7 | 4/5 | 4/5 | 5/6 |
| Graduated dial quantity | Individual | 8 | 8 | 8 | 8 |
| Net harvesting rate | % | 60 | ＞95 | ＞95 | ＞98 |
| Job state | ? | Part 1 shake part 5 is impaired, distortion | Resistance is large, the distortion of shovel head | Normally, soil is many | Normally |
| Corrective measure | ? | Wrong shovel, elimination are blocked up | Strengthen shovel head | Increase shovel number, improve the clean rate of hugging | ? |
The shovel of the utility model design is hugged the good effect that the mechanical device of residual mulching film compared with prior art had and is:
(1) efficiency is high, and 50 horsepowers of power hour are hugged collection more than 1 hectare.
(2) skinning device can be comprehensive by top layer earthing and root stubble shovel pine; Current pulled straight is become to elastic claw rotation and stir, residual film is not easy-to-draw broken.
(3) skinning is with to hug the method efficiency that combines of collection high, effective, and the resistance of motion is little, little to the destruction in soil.
(4) hug collection windrow, be easy to pick up and mechanization packing and transporting.
Accompanying drawing explanation:
Fig. 1 hugs farmland residual mulching film mechanical device structure schematic diagram for shoveling;
Fig. 2 is for shoveling the film device that rises of hugging in the residual mulching film mechanical device of farmland;
Fig. 3 is for hugging film graduated dial modular construction schematic diagram;
Fig. 4 is the structural representation of skinning front shovel and skinning rear shovel.
1 skinning device crossbeam, 2 trifilar suspension framves, 3 large support arms, 4 skinning front shovels, 5 skinning rear shovels, 6 are hugged film graduated dial; 7 little support arms, 8 spring pull bars, 9 U-bolts, 10 graduated dial wheel rims, 11 graduated dial disc, 12 elastic claws.
Embodiment:
Below in conjunction with specific embodiment, the utility model is described further, following each embodiment is only not limitation of the utility model for the utility model is described.Raw material used all have commercially available.
Embodiment 1
(1) device: a kind of shovel is hugged the machinery of farmland residual mulching film, it comprises skinning device crossbeam 1, trifilar suspension frame 2, large support arm 3, skinning front shovel 4, skinning rear shovel 5, hugs film graduated dial 6; Hug film graduated dial 6 and be contained on the spindle nose of hugging film machine ramuscule arm 7, hug the uniform elastic claw 12 of installing on film graduated dial 6.Wherein on trifilar suspension frame 2 underbeams, install skinning device crossbeam 1 additional, skinning device crossbeam adopts U-bolt 9 to be staggered front to back and to hang over skinning device crossbeam 1 with front recessed meniscate 4 skinning front shovels and 5 skinning rear shovels.Skinning front shovel and ground angle are that 2 degree, skinning rear shovel and ground angle are 3 degree.Skinning device crossbeam 1 adopts U-bolt 9 to be connected with trifilar suspension frame 2, and large support arm 3 hangs on trifilar suspension frame 2 by spring pull bar 8 with trifilar suspension frame 2.Skinning front shovel 4 and skinning rear shovel 5 are staggered front to back and hang on skinning device crossbeam 1;
Hug film graduated dial 6 for 8 and be contained on the spindle nose of hugging film machine ramuscule arm 7, each hugs film graduated dial 6 circumferences is 1.45 meters, and the number of teeth of hugging the elastic claw 12 of installing on film graduated dial 6 is 60 teeth, and hugging film width is 5.2 meters.The material of elastic claw 12 is spring steel, and diameter is 7 millimeters, is evenly contained on the circumference of hugging film graduated dial 6, and while hugging the passive rotation of film graduated dial, elastic claw is easy to stir and hugs collection.
Operation principle: skinning device moving linearly under tractor-drawn, the rectilinear motion of tractor-drawn pulls hugs film graduated dial, hugs the dependence of film graduated dial and rotates with the frictional resistance on ground.
(2) course of work: elastic claw 12 kiss the earths of hugging on film graduated dial 6 produce certain strain, tractor pulls and hugs film skinning machinery with 7 ~ 11 kilometers of speed per hours, and skinning device moving linearly gos deep into 3 centimetres of sliding trackle crop retained root stubbles of soil shallow-layer and becomes flexible the earthing on film simultaneously; The rectilinear motion of tractor-drawn pulls hugs film graduated dial, hugs the dependence of film graduated dial and rotates with the frictional resistance on ground, and soil, the top layer rubbish such as residual film, root stubble are hugged to integrated windrow (can hug heap).
Embodiment 2
Shovel is hugged a machinery for farmland residual mulching film, and it comprises skinning device crossbeam 1, trifilar suspension frame 2, large support arm 3, skinning front shovel 4, skinning rear shovel 5, hugs film graduated dial 6; Hug film graduated dial 6 and be contained on the spindle nose of hugging film machine ramuscule arm 7, hug on film graduated dial 6 elastic claw 12 is installed uniformly, material is spring steel, and elastic claw diameter is 10 millimeters.Elastic claw edge diameter is 1.7 meters.Wherein on trifilar suspension frame 2 underbeams, install skinning device crossbeam 1 additional, skinning device crossbeam adopts U-bolt 9 to be staggered front to back and to hang over skinning device crossbeam 1 with front recessed meniscate 5 skinning front shovels and 7 skinning rear shovels.Skinning front shovel and ground angle are that 5 degree, skinning rear shovel and ground angle are 7 degree.Skinning device crossbeam 1 adopts U-bolt 9 to be connected with trifilar suspension frame 2, and large support arm 3 hangs on trifilar suspension frame 2 by spring pull bar 8 with trifilar suspension frame 2.Skinning front shovel 4 and skinning rear shovel 5 are staggered front to back and hang on skinning device crossbeam 1;
Hug film graduated dial 6 for 8 and be contained on the spindle nose of hugging film machine ramuscule arm 7, each hugs film graduated dial 6 circumferences is 1.45 meters, and the number of teeth of hugging the elastic claw 12 of installing on film graduated dial 6 is 60 teeth, and hugging film width is 5.2 meters.The material of elastic claw 12 is spring steel, and diameter is 7 millimeters, is evenly contained on the circumference of hugging film graduated dial 6, and while hugging the passive rotation of film graduated dial, elastic claw is easy to stir and hugs collection.Operation principle: skinning device moving linearly under tractor-drawn, the rectilinear motion of tractor-drawn pulls hugs film graduated dial, hugs the dependence of film graduated dial and rotates with the frictional resistance on ground.
(2) course of work: elastic claw 12 tread surfaces of hugging on film graduated dial 6 produce certain strain, tractor pulls and hugs film skinning machinery with 11 kilometers of speed per hours, and skinning device moving linearly gos deep into 6 centimetres of sliding trackle crop retained root stubbles of soil shallow-layer and becomes flexible the earthing on film simultaneously; The rectilinear motion of tractor-drawn pulls hugs film graduated dial, hugs the dependence of film graduated dial and rotates with the frictional resistance on ground, and soil, the top layer rubbish such as residual film, root stubble are hugged to integrated windrow (can hug heap).
Embodiment 2
Comparative test:
Conventional graduated dial formula hay rake is hugged film, is shoveled the test of hugging farmland residual mulching film:
Method: 8 dish pullrakes
Step: be power with 50 horsepowers of tractors, drag hay rake
Result: hug collection residual mulching film poor effect, winder rate approximately 11%.
Adopting shovel of the present utility model to hug residual mulching film mechanical device tests:
Method: be improved to suspension type, many elastic claws 8 dish hay rakes, load onto skinning device before hay rake.
Step: be power with 75 horsepowers of tractors, drag hay rake
Result: winder rate more than 90%, average operating efficiency are with 20 mu/hour of 75 horsepowers of power of 8 dish.
Embodiment 3
Shovel of the present utility model is hugged the actual use of residual mulching film mechanical device and comparable situation:
Place 1: fields for spring sowing before Jinghai sowing cotton seed, overlay film grows cotton 4 ~ 5 years, has a small amount of building waste in soil.
Method: be power with 80 horsepowers of tractors, drag this product and hug the residual film in collection cotton field and do not hug film.
Result: statistics is as following table
Place 2: Inner Mongol Bayan nur drops down the front fields for spring sowing of Huanghe water, corn, overlay film kind corn is more than 10 years.
Method: be power with 80 horsepowers of tractors, drag respectively hay rake and this product and hug the residual film in collection corn field.
Result: add up as following table:
| Area/kind of plant | Winder rate | Emergence rate % | Watermelon productive rate | Quality |
| Tianjin/watermelon | The utility model device winder 90% | 98 | Unknown | Well |
| Tianjin/watermelon | Do not hug film | 70 | Unknown | Poor |
| Cover west/corn | The utility model device winder 90% | 99 | Unknown | Well |
| Cover west/corn | Adopt hay rake to hug |
60 | Unknown | Poor |
Claims (8)
1. a shovel is hugged the mechanical device of farmland residual mulching film, it is characterized in that graduated dial formula hay rake and the combination of skinning device, it comprises skinning device crossbeam (1), trifilar suspension frame (2), large support arm (3), skinning front shovel (4), skinning rear shovel (5), hugs film graduated dial (6); On trifilar suspension frame (2) underbeam, install skinning device crossbeam (1) additional, skinning front shovel (4) and skinning rear shovel (5) are staggered front to back and hang on skinning device crossbeam (1); Hug film graduated dial (6) and be contained on the spindle nose of hugging the little support arm of film machine (7), hug the upper elastic claw (12) of installing uniformly of film graduated dial (6).
2. mechanical device according to claim 1, is characterized in that the described number of hugging film graduated dial (6) is 6-8, and each hugs film graduated dial (6) diameter is 1.1 ~ 1.7 meters.
3. mechanical device according to claim 1, the number of teeth that it is characterized in that hugging the upper elastic claw (12) of installing of film graduated dial (6) is 40 ~ 80 teeth, hugging film width is 3 ~ 7 meters.
4. mechanical device according to claim 1, is characterized in that described skinning device crossbeam (1) adopts U-bolt (9) to be connected with trifilar suspension frame (2); Large support arm (3) hangs on trifilar suspension frame (2) by spring pull bar (8) with trifilar suspension frame (2).
5. mechanical device according to claim 1, is characterized in that described skinning device crossbeam (1) adopts U-bolt (9) to be connected with 4 ~ 8 skinning rear shovels (5) with 3 ~ 7 skinning front shovels (4).
6. mechanical device according to claim 1, the material that it is characterized in that elastic claw (12) is spring steel, elastic claw diameter is 6 millimeters-10 millimeters.
7. mechanical device according to claim 1, is characterized in that skinning front shovel (4) and ground angle are that 0 ~ 5 degree, skinning rear shovel (5) are 1 ~ 7 degree with ground angle.
8. mechanical device according to claim 1, is characterized in that described elastic claw (12) is evenly contained on the circumference of hugging film graduated dial (6), and while hugging the passive rotation of film graduated dial, elastic claw is easy to stir and hugs collection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201320281001.9U CN203467331U (en) | 2013-05-22 | 2013-05-22 | Mechanical device for shoveling and raking residual mulching films on farmland |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320281001.9U CN203467331U (en) | 2013-05-22 | 2013-05-22 | Mechanical device for shoveling and raking residual mulching films on farmland |
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| CN203467331U true CN203467331U (en) | 2014-03-12 |
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| CN201320281001.9U Expired - Lifetime CN203467331U (en) | 2013-05-22 | 2013-05-22 | Mechanical device for shoveling and raking residual mulching films on farmland |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109287350A (en) * | 2018-11-09 | 2019-02-01 | 通辽市农业科学研究院 | Sand ground rice field underground lining form machine |
| CN117337716A (en) * | 2023-11-27 | 2024-01-05 | 西藏自治区农牧科学院农业资源与环境研究所 | Double-effect functional integrated machine for covering mulching film and recycling residual film |
-
2013
- 2013-05-22 CN CN201320281001.9U patent/CN203467331U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109287350A (en) * | 2018-11-09 | 2019-02-01 | 通辽市农业科学研究院 | Sand ground rice field underground lining form machine |
| CN109287350B (en) * | 2018-11-09 | 2023-12-08 | 通辽市农牧科学研究所 | Underground film lining machine for sand paddy field |
| CN117337716A (en) * | 2023-11-27 | 2024-01-05 | 西藏自治区农牧科学院农业资源与环境研究所 | Double-effect functional integrated machine for covering mulching film and recycling residual film |
| CN117337716B (en) * | 2023-11-27 | 2024-05-03 | 西藏自治区农牧科学院农业资源与环境研究所 | Double-effect functional integrated machine for covering mulching film and recycling residual film |
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Granted publication date: 20140312 |