CN108770491B - Stalk crop header linear cutting device - Google Patents
Stalk crop header linear cutting device Download PDFInfo
- Publication number
- CN108770491B CN108770491B CN201810899702.6A CN201810899702A CN108770491B CN 108770491 B CN108770491 B CN 108770491B CN 201810899702 A CN201810899702 A CN 201810899702A CN 108770491 B CN108770491 B CN 108770491B
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- shaft
- driven
- header
- fixed pulley
- limiting
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- 238000005520 cutting process Methods 0.000 title claims abstract description 105
- 230000033001 locomotion Effects 0.000 claims abstract description 11
- 230000005540 biological transmission Effects 0.000 claims abstract description 10
- 238000003306 harvesting Methods 0.000 claims description 14
- 230000006835 compression Effects 0.000 claims description 8
- 238000007906 compression Methods 0.000 claims description 8
- 238000006073 displacement reaction Methods 0.000 claims description 8
- 229910000831 Steel Inorganic materials 0.000 claims description 4
- 239000010959 steel Substances 0.000 claims description 4
- 230000000452 restraining effect Effects 0.000 claims description 2
- 239000010902 straw Substances 0.000 description 13
- 238000000034 method Methods 0.000 description 7
- 238000010586 diagram Methods 0.000 description 6
- 238000004804 winding Methods 0.000 description 6
- 230000000694 effects Effects 0.000 description 3
- 239000002689 soil Substances 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 239000004460 silage Substances 0.000 description 2
- 210000001015 abdomen Anatomy 0.000 description 1
- 238000012271 agricultural production Methods 0.000 description 1
- 230000035558 fertility Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 235000015097 nutrients Nutrition 0.000 description 1
- 239000003895 organic fertilizer Substances 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 230000001502 supplementing effect Effects 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Classifications
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01D—HARVESTING; MOWING
- A01D47/00—Headers for topping of plants, e.g. stalks with ears
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01D—HARVESTING; MOWING
- A01D57/00—Delivering mechanisms for harvesters or mowers
- A01D57/01—Devices for leading crops to the mowing apparatus
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Environmental Sciences (AREA)
- Harvester Elements (AREA)
Abstract
The invention discloses a stalk crop header linear cutting device, which comprises: the driving chain wheel is coaxially connected with a driving wheel of the header; the driven sprocket is in transmission connection with the driving sprocket through a chain; the driving fixed pulley is fixedly connected with the driven sprocket and can rotate at the same speed with the driving sprocket; the driven fixed pulley block comprises a plurality of driven fixed pulleys which are symmetrically distributed below a header bottom plate of the header; a cutting line which sequentially bypasses the driven fixed pulley; the driving sprocket is used for rotating to drive the driven sprocket, the driving fixed pulley and the driven fixed pulley in sequence, so that the cutting line is driven to do rotary motion.
Description
Technical Field
The invention relates to the field of agricultural engineering, in particular to a linear cutting device for a harvesting platform of a stalk crop.
Background
The straw contains a large amount of organic matters, is an important organic fertilizer source for agricultural production, realizes straw passing through abdomen and returning to the field through silage, is beneficial to supplementing and balancing soil nutrients, and has important significance for improving soil and improving the basic soil fertility of the cultivated land.
Silage machine has been developed fast in nearly three to four years, and the straw crop harvesting header that uses at present needs the cutting knife motion to turn around or reciprocate and cuts the crop, because the cutting knife quality is big, and the quantity is many, and required transmission structure is complicated, just has caused header gross mass too big, and the power consumption is big in transportation and the operation in-process, adjusts inflexible grade shortcoming.
Disclosure of Invention
The invention designs and develops a linear cutting device of a stalk crop harvesting platform, and one of the purposes of the invention is to harvest stalk crops by chain transmission and matching with linear cutting instead of a traditional cutter.
The second purpose of the invention is that the cutting line is flexibly adjustable by flexibly arranging the fixed pulleys at different positions of the cutting table bottom plate, and the universality is good.
The technical scheme provided by the invention is as follows:
a stalk crop header wire cutting apparatus comprising:
The driving chain wheel is coaxially connected with a driving wheel of the header;
the driven sprocket is in transmission connection with the driving sprocket through a chain;
The driving fixed pulley is fixedly connected with the driven sprocket and can rotate at the same speed with the driven sprocket;
The driven fixed pulley block comprises a plurality of driven fixed pulleys which are distributed below a header bottom plate of the header;
a cutting line which sequentially bypasses the driven fixed pulley;
the driving sprocket is used for rotating to drive the driven sprocket, the driving fixed pulley and the driven fixed pulley in sequence, so that the cutting line is driven to do rotary motion.
Preferably, the method further comprises:
the positioning shafts are symmetrically fixed below a header bottom plate of the header;
the limit spring is arranged in a matched mode with the driven fixed pulley, and the axis direction of the limit spring is parallel to the cutting line;
the cutting line sequentially penetrates through the limiting spring to bypass the fixed pulley.
Preferably, the method further comprises:
One end of the crank rod is hinged with a fixed shaft welded below the header bottom plate;
the tensioning movable pulley is hinged with the other end of the crank rod through a shaft, so that the tensioning movable pulley can rotate through the shaft;
a positioning pin provided on the crank lever;
the rotary buckle is fixed below a header bottom plate of the header and is provided with a first through hole;
One end of the limiting rod is provided with a second through hole and is hinged with the positioning pin, so that the limiting rod can rotate around the positioning pin, and the other end of the limiting rod passes through the first through hole and is fixed through the cotter pin;
and the limiting spring is sleeved on the limiting rod.
Preferably, the method further comprises:
And the limiting ring is fixed on the limiting rod and is close to the crank rod, and the limiting ring is used for limiting the movement displacement of the limiting spring.
Preferably, the driven fixed pulley block comprises:
a start driven fixed pulley;
A plurality of supporting driven fixed pulleys;
An end driven fixed pulley;
The cutting devices are arranged in a plurality of groups and symmetrically arranged below the cutting table bottom plate, and one supporting driven fixed pulley is arranged in each of a plurality of supporting driven movable pulleys of the same-side cutting device in a coaxial mode.
Preferably, the method further comprises:
a first shaft welded below the header floor;
A first limiting bearing cooperating with the first shaft;
The first shaft sleeve is sleeved on the first shaft, and the first shaft sleeve is in contact with the first limiting bearing inner ring;
the first compression nut is in threaded connection with the first shaft and is used for compressing the first shaft sleeve;
the driven fixed pulley is installed with the first limiting bearing in an interference fit mode.
Preferably, the method further comprises:
the second shaft is welded below the header bottom plate;
A plurality of second restraining bearings cooperating with the second shaft;
the shaft cylinder is fixedly connected with the driving fixed pulley, the shaft cylinder is sleeved on the second shaft, and the driven sprocket and the shaft cylinder are coaxially arranged;
The second shaft sleeve is sleeved on the second shaft and is arranged between the second limiting bearings;
A second compression nut in threaded engagement with the second shaft for compressing the second limiting bearing;
Wherein the second limiting bearing, the second sleeve and the shaft barrel are coaxially arranged.
Preferably, the cutting wire is wound from a steel wire.
Preferably, the positioning pin is disposed at a middle position of the crank shaft.
Preferably, grooves are formed in the cylindrical surfaces of the driven fixed pulleys, the cutting lines are matched with the grooves, and rotary motion is performed in the grooves.
Compared with the prior art, the invention has the following beneficial effects:
1. The invention replaces the traditional cutting knife cutting table for cutting by linear cutting, thereby greatly reducing the quality of the cutting table, reducing the power consumption of the agricultural implement, simultaneously only needing one driving wheel, having small running power consumption of the whole mechanism and greatly reducing the power requirement on the agricultural implement;
2. the linear cutting mechanism has small mass, small vibration generated by operation, reduced vibration source, prolonged service life and reliability of the cutting table, and the cutting device is only one cutting line without a traditional cutting knife, so that the manufacturing cost of the cutting table is reduced;
3. Two supporting driven fixed pulleys in the cutting device on the same side of the cutting table bottom plate are coaxially arranged and are not on the same rotation plane, and the rotation directions of the two supporting driven fixed pulleys are opposite when the two supporting driven fixed pulleys work, so that cutting lines bypassing the two supporting driven fixed pulleys are not interfered with each other, and when the harvesting width is smaller, one set of linear cutting device can be flexibly removed from two sides of the cutting table, so that the effect of reducing the working width is achieved;
4. The invention is nine-row harvest, the cutting system is simple, the cutting device can be reduced, the conveying mechanism can be correspondingly changed, the adjustment is flexible and convenient, and the universality is good;
5. The device has simple structure and convenient maintenance.
Drawings
Fig. 1 is a schematic diagram of the overall structure of a wire-cut straw crop harvesting header according to the invention.
Fig. 2 is a schematic view of a wire cutting apparatus according to the present invention.
Fig. 3 is a schematic view of a power transmission path according to the present invention.
Fig. 4 is a schematic view of a tensioner according to the present invention.
Fig. 5 is a schematic view of the structure of the cutting line according to the present invention.
Fig. 6 is a schematic diagram of a winding mode of the cutting line in the pulley block according to the invention.
Fig. 7 is a partial enlarged view at a in fig. 6.
Fig. 8 is a schematic diagram of a winding mode of a cutting line at a driving movable pulley according to the present invention.
Fig. 9 is a schematic diagram of a connection mode of the driven fixed pulley and the cutting table bottom plate.
Fig. 10 is a schematic diagram of connection between a driving fixed pulley and a driven sprocket, and a header bottom plate according to the present invention.
Fig. 11 is a schematic diagram of an assembly structure of a limit spring according to the present invention.
Fig. 12 is a schematic view of a spacing spring according to the present invention.
Fig. 13 is a schematic view of the bottom of the header according to the present invention.
Detailed Description
The present invention is described in further detail below with reference to the drawings to enable those skilled in the art to practice the invention by referring to the description.
As shown in fig. 2,3 and 7, the invention provides a linear cutting device for a stalk crop harvesting platform, the main structure of the linear cutting device comprises a transmission chain wheel set 120, a driving fixed pulley 124, a driven fixed pulley block 125, a tensioning device 130 and a cutting line 110, the transmission chain wheel set 120 comprises a driving chain wheel 121, a driven chain wheel 122 and a chain 123, the driving chain wheel 121 is connected with a driving wheel 211 of the harvesting platform reel through a transmission shaft 212, and power is uniformly provided by agricultural implements; when the harvester works, the driving sprocket set 120 drives the cutting table seedling pulling device driving wheel 211 to rotate, the seedling pulling device driving wheel 211 is coaxially connected with the driving sprocket 121 through the transmission shaft 212, the driving sprocket 121 is driven to rotate by the rotation of the driving wheel 211, the driving sprocket 121 is connected with the driven sprocket 122 through the chain 123, the driven sprocket 122 is driven to rotate by the driving sprocket 121, the driven sprocket 122 is rigidly connected with the driving fixed pulley 124 and is fixed into a whole, the driving fixed pulley 124 is driven by the driven sprocket 122 to rotate, and the cutting line 110 wound on the driving fixed pulley 124 and the driven fixed pulley block 125 is enabled to do rotary motion.
As shown in fig. 6, 7, 8, 11 and 12, the driven fixed pulley block 125 is composed of a plurality of driven fixed pulleys, and is approximately symmetrically distributed below the lower bottom plate 230 of the cutting table, and the cutting line 110 sequentially bypasses the plurality of driven fixed pulleys by being coaxially installed and positioned with a shaft 234 welded on the lower bottom plate; the driven fixed pulley is arranged in a matched manner with the limit spring 126, the cutting line 110 is wound in a groove on the cylindrical surface of the driven fixed pulley block 125, and the cutting line 110 passes through the inside of the limit spring 126 in parallel to the axial direction of the limit spring 126 so as to prevent the cutting line 110 from being separated from the groove of the driven fixed pulley when rotating; in operation, the cutting line 110 is wound around the grooves of the driving fixed pulley 124, the driven fixed pulley block 125 and the tensioning movable pulley 131 in a certain manner, and the driving fixed pulley 124 rotates to drive the cutting line 110 wound in the grooves to perform high-speed rotation in the winding direction due to the action of friction force.
As shown in fig. 2 and 4, the tensioning device 130 includes a crank lever 132, a spring 136, a stopper rod 134, and a swivel button 135; one end of the crank rod 132 is hinged with the lower bottom plate through a shaft welded on the lower bottom plate 230 of the cutting table, only the rotation plane can be used for rotating parallel to the lower bottom plate 230, the other end of the crank rod 132 is hinged with the tensioning fixed pulley 131 through a shaft, the tensioning fixed pulley 131 can freely rotate around the shaft, a positioning pin 133 is machined at the approximate middle position of the crank rod 132, a cylinder with a through hole is welded at one end of the limiting rod 134, the other end of the limiting rod is drilled with a through hole for installing a cotter pin 137, an inner hole of the cylinder is coaxially installed with the positioning pin 133 on the crank rod 132, a spring 136 is sleeved on the limiting rod 134, and a limiting ring is welded at one end of the crank rod 132 close to the cylinder for limiting the movement of the spring 136 sleeved on the limiting rod; the rotary buckle 135 is positioned below the lower bottom plate 230 by a welding piece, and can only perform rotary motion with the axis vertical to the lower bottom plate 230, the other end of the limiting rod 134 passes through a through hole of the rotary buckle 135, and a cotter pin 137 is arranged in a shaft end through hole of the limiting rod 134 and used for limiting the displacement of the other end of the spring 136; when the cutting line 110 is in operation, when the cutting part encounters resistance of straw and the like, the cutting line of the cutting part deforms, the length of the cutting line of the cutting part is increased, and at the moment, the spring 136 in the tensioning device is compressed, so that the length of the cutting line of the non-cutting part is reduced, and the cutting line 110 is prevented from being broken due to overlarge stress; when the resistance of the straw or the like to the cutting line 110 is reduced, the spring 136 is stretched to apply a certain pressure to the cutting line 110, so that the cutting line maintains a certain tension to achieve a good cutting effect.
As shown in FIG. 5, the cutting line 110 is similar to the saw line on a wire saw machine, and is generally made of high-quality high-strength stretched stainless steel, and is formed by winding a thinner steel wire 111 around a thicker steel wire 112 to form wire-wound saw teeth, and then forming a saw blade by winding four strands of wires; the cutting line is wound on the driving fixed pulley 124, the driven fixed pulley block 125 and the tensioning movable pulley 131 according to a certain winding mode, and when the harvester works, the cutting line 110 moves at a high speed, and the cutting of the contacted crop straws is completed rapidly.
As shown in fig. 6 and 7, in another embodiment, two sets of wire cutting devices are disposed on the left and right sides of the header base plate, and the driven fixed pulley block 125 of each set of wire cutting devices includes: a start driven fixed pulley, a plurality of support driven fixed pulleys and an end driven fixed pulley; the cutting line 110 sequentially bypasses the initial driven fixed pulley, the supporting driven fixed pulley and the tail driven fixed pulley, one supporting driven fixed pulley is arranged coaxially in each of two sets of linear cutting devices on one side of the cutting table bottom plate, one shaft 234 is shared for installation, the two supporting driven fixed pulleys are not arranged on the same rotation plane, the two supporting driven fixed pulleys are opposite in rotation direction during working, the cutting line 110 bypassing the two supporting driven fixed pulleys is not interfered with each other, when the harvesting breadth is smaller, one set of linear cutting devices can be flexibly removed from two sides of the cutting table, and the effect of reducing the working breadth is achieved.
As shown in fig. 9, the driven fixed pulley 125 is connected to the header in the following manner: the shaft 234 is welded and fixed with the header bottom plate 230, a boss is machined at one end of the shaft 234 close to the bottom plate and used as a shaft shoulder for limiting the vertical displacement of the bearing 231, the driven fixed pulley 125 is mounted with the bearing 231 in a coaxial interference fit, the cutting line 110 bypasses a groove on the cylindrical surface of the driven fixed pulley, threads are machined at the other end of the shaft 234, the shaft sleeve 232 is sleeved on the shaft 234 and contacted with the inner ring of the bearing 231, the compression nut 233 is connected with the shaft 234 through threads, the compression nut 233 rotates and compresses the shaft sleeve 232, and then the shaft sleeve 232 compresses the bearing 231 and does not displace in the axial direction of the shaft 234 under the combined action of the boss.
As shown in fig. 10, the driving fixed pulley 124, the header and the driving sprocket 122 are mounted in the following manner: the shaft 234 is welded and fixed with the header bottom plate 230, one end of the shaft 234, which is close to the bottom plate, is provided with a boss which is used as a shaft shoulder for limiting the vertical displacement of the bearing 231, the driving fixed pulley 124 is rigidly connected with the shaft cylinder 238, the other end of the shaft cylinder 238 is provided with a key slot, the driven sprocket 122 is coaxially arranged with the shaft cylinder 238, and the circumferential displacement is limited by the key; the other end of the shaft 234 is provided with threads, the bearing 231 is coaxially sleeved on the shaft 234, the shaft sleeve 232 is distributed between the bearings 231, the inner wall of the shaft barrel 238 is provided with protrusions, the protrusions are used for being matched with the shaft sleeve 232 and the inner ring of the bearing 231 to limit the displacement of the shaft barrel 238 in the axial direction of the shaft 234, the gasket 239 is sleeved on the shaft 234, the upper part of the gasket 239 is contacted with the inner ring of the bearing, the compression nut 233 is in threaded connection with the shaft 234, the compression nut 233 rotates to a certain extent to compress the gasket 239, and further, the displacement of the bearing 231, the shaft sleeve 232 and the shaft barrel 238 in the axial direction of the shaft 234 is limited.
As shown in fig. 1, 6 and 13, when the whole cutting table works, as the agricultural implement advances, the straws at the front end of the cutting table are gathered and clustered by the grain lifter 220, then the straws contact the grain pulling device 210 and are clamped and conveyed by the clamping action of the grain pulling teeth. When the cutting line 110 touches the root of the straw, the cutting line 110 cuts into the straw due to the high-speed rotation of the cutting line 110 and the knife edge, then the straw is cut off by the cutting line, the cut straw is then conveyed to the feeding port in the middle from two sides under the clamping action of the reel 210, and the next crushing process is performed.
Although embodiments of the present invention have been disclosed above, it is not limited to the details and embodiments shown and described, it is well suited to various fields of use for which the invention would be readily apparent to those skilled in the art, and accordingly, the invention is not limited to the specific details and illustrations shown and described herein, without departing from the general concepts defined in the claims and their equivalents.
Claims (7)
1. A stalk crop header wire cutting device, comprising:
The driving chain wheel is coaxially connected with a driving wheel of the header;
the driven sprocket is in transmission connection with the driving sprocket through a chain;
The driving fixed pulley is fixedly connected with the driven sprocket and can rotate at the same speed with the driven sprocket;
The driven fixed pulley block comprises a plurality of driven fixed pulleys which are distributed below a header bottom plate of the header;
a cutting line which sequentially bypasses the driven fixed pulley;
The driving sprocket wheel rotates to drive the driven sprocket wheel, the driving fixed pulley and the driven fixed pulley to rotate in sequence, so that the cutting line is driven to do rotary motion;
the positioning shafts are symmetrically fixed below a header bottom plate of the header;
the limit spring is arranged in a matched mode with the driven fixed pulley, and the axis direction of the limit spring is parallel to the cutting line;
the cutting line sequentially passes through the inside of the limit spring so as to bypass the fixed pulley;
a first shaft welded below the header floor;
A first limiting bearing cooperating with the first shaft;
The first shaft sleeve is sleeved on the first shaft, and the first shaft sleeve is in contact with the first limiting bearing inner ring;
the first compression nut is in threaded connection with the first shaft and is used for compressing the first shaft sleeve;
wherein the driven fixed pulley is in interference fit with the first limiting bearing;
the second shaft is welded below the header bottom plate;
A plurality of second restraining bearings cooperating with the second shaft;
the shaft cylinder is fixedly connected with the driving fixed pulley, the shaft cylinder is sleeved on the second shaft, and the driven sprocket and the shaft cylinder are coaxially arranged;
The second shaft sleeve is sleeved on the second shaft and is arranged between the second limiting bearings;
A second compression nut in threaded engagement with the second shaft for compressing the second limiting bearing;
Wherein the second limiting bearing, the second sleeve and the shaft barrel are coaxially arranged.
2. The stalk crop header wire cutting apparatus of claim 1, further comprising:
One end of the crank rod is hinged with a fixed shaft welded below the header bottom plate;
the tensioning movable pulley is hinged with the other end of the crank rod through a shaft, so that the tensioning movable pulley can rotate through the shaft;
a positioning pin provided on the crank lever;
the rotary buckle is fixed below a header bottom plate of the header and is provided with a first through hole;
One end of the limiting rod is provided with a second through hole and is hinged with the positioning pin, so that the limiting rod can rotate around the positioning pin, and the other end of the limiting rod passes through the first through hole and is fixed through the cotter pin;
and the limiting spring is sleeved on the limiting rod.
3. The stalk crop header wire cutting apparatus of claim 2, further comprising:
And the limiting ring is fixed on the limiting rod and is close to the crank rod, and the limiting ring is used for limiting the movement displacement of the limiting spring.
4. A stalk crop header wire-cutting apparatus as claimed in claim 3, wherein the driven fixed pulley block comprises:
a start driven fixed pulley;
A plurality of supporting driven fixed pulleys;
An end driven fixed pulley;
The wire cutting devices of the stalk crop harvesting platform are arranged in a plurality of groups, are symmetrically arranged below the bottom plate of the harvesting platform, and are arranged coaxially through one supporting and driven fixed pulley respectively among a plurality of supporting and driven movable pulleys of the same-side wire cutting device.
5. The wire cutting device of a stalk crop header of claim 4, wherein the cutting wire is wound from a steel wire.
6. The line cutting device for stalk crop harvesting header as recited in any one of claims 3-5, wherein said locating pin is disposed at a mid-position of said crank rod.
7. The linear cutting device for the stalk crop harvesting platform according to claim 6, wherein grooves are formed in the cylindrical surfaces of the driven fixed pulleys, the cutting lines are matched with the grooves, and rotary motion is performed in the grooves.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810899702.6A CN108770491B (en) | 2018-08-09 | 2018-08-09 | Stalk crop header linear cutting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810899702.6A CN108770491B (en) | 2018-08-09 | 2018-08-09 | Stalk crop header linear cutting device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108770491A CN108770491A (en) | 2018-11-09 |
| CN108770491B true CN108770491B (en) | 2024-06-25 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810899702.6A Active CN108770491B (en) | 2018-08-09 | 2018-08-09 | Stalk crop header linear cutting device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108770491B (en) |
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| CN208657381U (en) * | 2018-08-09 | 2019-03-29 | 吉林大学 | A kind of stalk crop harvesting ceding of Taiwan wire-electrode cutting device |
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| CN202185655U (en) * | 2011-07-07 | 2012-04-11 | 宋斐 | Wire cut electrical discharge machine |
| JP2013059289A (en) * | 2011-09-14 | 2013-04-04 | Hitachi Koki Co Ltd | Brush cutter and cutting unit used therefor |
| CN202841923U (en) * | 2012-10-30 | 2013-04-03 | 吴峰 | Corn harvesting machine header |
| EP2798932B1 (en) * | 2013-05-03 | 2016-03-16 | Black & Decker Inc. | A vegetation cutting device |
| CN203505056U (en) * | 2013-09-06 | 2014-04-02 | 甘肃农业大学 | Multifunctional mountain harvester with safety control device |
| CN203761869U (en) * | 2014-02-28 | 2014-08-13 | 陈永政 | Header of corn harvesting machine |
| CN103882750B (en) * | 2014-03-07 | 2016-01-06 | 柳州豪姆机械有限公司 | Steel strand wires monofilament spraying central hair tensioning apparatus |
| WO2015161465A1 (en) * | 2014-04-23 | 2015-10-29 | 赵延辉 | Universal wheel mower |
| CN104044218B (en) * | 2014-06-27 | 2017-01-25 | 泰州乐叶光伏科技有限公司 | Multi-line cutting device |
| CN205893419U (en) * | 2016-08-17 | 2017-01-18 | 张士骏 | A permanent tension maintaining device for diamond cutting line preparation |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103004370A (en) * | 2012-12-14 | 2013-04-03 | 程玉来 | Cutting height-free harvester for Chinese leeks |
| CN207669543U (en) * | 2017-12-20 | 2018-07-31 | 扬州宏祥光电科技有限公司 | A kind of diamond cutting line slicing machine tension mechanism |
| CN208657381U (en) * | 2018-08-09 | 2019-03-29 | 吉林大学 | A kind of stalk crop harvesting ceding of Taiwan wire-electrode cutting device |
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| CN108770491A (en) | 2018-11-09 |
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