CN103283378A - Single-stalk cutting test device with double moving cutters - Google Patents
Single-stalk cutting test device with double moving cutters Download PDFInfo
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- CN103283378A CN103283378A CN201310187133XA CN201310187133A CN103283378A CN 103283378 A CN103283378 A CN 103283378A CN 201310187133X A CN201310187133X A CN 201310187133XA CN 201310187133 A CN201310187133 A CN 201310187133A CN 103283378 A CN103283378 A CN 103283378A
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- cushion block
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- 238000005520 cutting process Methods 0.000 title claims abstract description 54
- 238000012360 testing method Methods 0.000 title claims abstract description 50
- 238000005452 bending Methods 0.000 claims description 17
- 230000002146 bilateral effect Effects 0.000 claims description 3
- 230000033001 locomotion Effects 0.000 abstract description 11
- 238000006073 displacement reaction Methods 0.000 abstract description 4
- 125000006850 spacer group Chemical group 0.000 abstract 1
- 238000003306 harvesting Methods 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 238000002679 ablation Methods 0.000 description 1
- 230000001174 ascending effect Effects 0.000 description 1
- 230000000712 assembly Effects 0.000 description 1
- 238000000429 assembly Methods 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000010355 oscillation Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000003672 processing method Methods 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 238000007665 sagging Methods 0.000 description 1
- 238000004088 simulation Methods 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
- 210000001138 tear Anatomy 0.000 description 1
- 238000010998 test method Methods 0.000 description 1
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Abstract
The invention relates to a single-stalk cutting test device with double moving cutters. The technical scheme includes that the single-stalk cutting test device is fixed on a base, a universal testing machine connected on a universal testing machine connecting block drives an upper rack to move vertically and downwardly, a lower rack is driven to move upwardly through a gear, upper and lower cutters move oppositely in uniform motion till fittingly stagger in the middle of a 'U'-shaped groove of a 'U'-shaped groove stalk spacer and a crop stalk is cut off in the 'U'-shaped groove. Cutting force and cutter displacement are collected and recorded at a certain frequency by the universal testing machine, and maximum cutting force and cutting efficacy for cutting the single stalk can be obtained by analysis.
Description
Technical field
The present invention relates to a kind of crop cutting test device, is two moving knife testing machines of the single crop stem of synchronous cutting in opposite directions specifically, belongs to mechanical field.
Background technology
Harvest machinery is a kind of can working continuously in the field, finishing ripe crop continuously carries out the cutting of stem stalk, plucks also field of fringe, stem stalk, the real machine of collecting of fringe, cutter is one of harvest machinery critical component, the design quality of cutter directly affects the results performance of harvest machinery complete machine.
Double sickle cutterbar is to come in the development of the basis of single action cutter cutter, it drives two groups of blades up and down simultaneously by corresponding driving mechanism, and the direction of motion of two groups of blades is just the opposite, balance the inertia force that produces of single action cutter, it has solved preferably, and reciprocating type single action cutter cutting speed is low, to move back and forth that inertia force is big, vibration is big, balanced relation power is big and increase cutting speed and reduce cutting inertia force be the problem of a pair of contradiction.
Because it is bigger to be subjected to the field environmental influence during double sickle cutterbar field trial, it is complicated to change test parameters, and the collection of signal and processing be difficulty, and the test errors fluctuation is bigger, so need the design laboratory testing rig to solve the problem of experimental study.
Because traditional stem stalk test method is cut off the mode of stem stalk based on single blade, do not retrieve research and the corresponding patent of the stem stalk being carried out the double blade cutting at present.By patent retrieval, the relevant patent of stem stalk cutter sweep can retrieve to place an order:
The single stalk cutting test device of △ (Granted publication number: CN 202177520 U);
△ stem stalk cutting performance testing stand (Granted publication number: CN 201311382 Y).
But, for above-mentioned " single stalk cutting test device ", device adopts the cutting of single blade pendulum type, power relies on the gravitional force of pendulum type device, if will obtain bigger cutting kinetic energy, and the amplitude of oscillation that then needs to increase pendulum type device quality or increase pendulum type device, this is inappropriate during for the bigger stem stalk of cutting merit, and this device use single blade, and the blade cuts of the grain header of not simulation reality, limited to the directive function of reality.For above-mentioned " stem stalk cutting performance testing stand ", use gravitional force that ablation energy is provided equally, use the single blade cutting equally, so do not satisfy the test requirements document of double sickle cutterbar.
Summary of the invention
In order to solve the problem of above-mentioned existence, the invention discloses the two moving knife cutting test devices of a kind of single stem stalk, this experimental rig can cut single crop stem at the indoor pair moving knife of finishing, and gathers the cutting test data, improved the accuracy of test, and operability; Simultaneously, this experimental rig is equally applicable to single blade list stem stalk cutting test, and a tractor serves several purposes rationally utilizes the test resource.
The two moving knife cutting test devices of single stem stalk, comprise base, cutting assembly, stem stalk supporting component and driving member are installed on the base, described cutting assembly comprises the upper cutter knife vertical with base and following cutter, upper cutter knife and following cutter are fixed on the front end of straight shape knife bar arm and bending knife bar arm respectively by knife bar, the rear end of straight shape knife bar arm and bending knife bar arm is connected on the driving member, described stem stalk supporting component comprises " U " word groove stem stalk cushion block, and two cutteves lay respectively at vertical direction and the below of " U " word groove of " U " word groove stem stalk cushion block.
The outside of described straight shape knife bar arm and bending knife bar arm is respectively arranged with line slide rail, line slide rail comprises slide block and guide rail, and slide block is fixed with straight shape, the bending knife bar arm outside, and guide rail one side is stuck in the groove of slide block, opposite side fixedly has guide rail bracket, and the bottom of guide rail bracket is welded on the base plate.
Described upper cutter knife and following cutter all are isosceles-trapezium-shaped, and bottom and the knife bar of isosceles trapezoid are fixed, and the waist limit of isosceles trapezoid is edge of a knife limit, and edge of a knife limit is the zigzag edge of a knife that tilts towards the cutter outside, and the inboard of two cutteves fits tightly contact relatively.
There is the platform of projection at described knife bar two ends, and upper cutter knife and following cutter are separately fixed between the platform of two ends projection, and the platform of projection flushes with the upper and lower cutter outside.
Described " U " word groove stem stalk cushion block is fixed on a lateral edges of " T " font stem stalk bracing frame, " U " word groove is exposed at the outside of stem stalk support bar, be provided with stem stalk briquetting above " U " word groove stem stalk cushion block, stem stalk briquetting, " U " word groove stem stalk cushion block and stem stalk bracing frame are bolted to connection; The opposite side of stem stalk bracing frame is provided with bar shaped stem stalk cushion block and stem stalk briquetting, and the three is provided with vee by bolt in the middle of the stem stalk briquetting lower surface, and vee and bar shaped stem stalk cushion block and " U " word groove stem stalk cushion block form stem stalk passage.
Described driving member comprises the gear that is fixed on the tooth rest, and the horizontal bilateral symmetry of gear is provided with upper rack and following tooth bar, the flank profil of upper rack and following tooth bar and the flank profil clamping of gear.
Described straight shape knife bar arm and upper rack are fixed, and bending knife bar arm is fixed with following tooth bar.
Described upper rack top is provided with the universal testing machine contiguous block.
The present invention, compact conformation is during use, the universal testing machine drive upper rack cycle is rectilinear motion up and down, thereby driven gear has enough to meet the need motion back and forth, tooth bar motion under the gear driven, and upper rack is opposite with the following tooth bar direction of motion, movement velocity is identical, when upper cutter knife moves down, following cutter moves up, in opposite directions the distance that equates of constant speed movement, finally overlap in the middle of " U " word groove of " U " word groove stem stalk cushion block, the single stem stalk that will stretch the stem stalk passage below stem stalk briquetting cuts off; The present invention uses two moving knife that the single stem stalk of crop is cut, simulated two moving knife more accurately to the cutting process of crop stem, this experimental rig is simple in structure, light and handy, utilizes universal testing machine to carry out the loading of power, it is more stable to compare the gravitional force loading, and this makes test for data more reliable.This experimental rig will descend the cutter dismounting, keep upper cutter knife, namely can be used to test single action cutter crop stem cutting test, and the test for data processing method is identical with two moving knife list stem stalk cutting tests.
Description of drawings
Fig. 1 is structural representation of the present invention,
Fig. 2 is the structural representation behind the removal stem stalk supporting component among Fig. 1,
Fig. 3 be the A of Fig. 2 to view,
Fig. 4 be the B of upper cutter knife among Fig. 2 to view,
Fig. 5 be the C of upper cutter knife among Fig. 2 to view,
Fig. 6 be among Fig. 2 down the D of cutter to view,
Fig. 7 be among Fig. 2 down the E of cutter to view,
Fig. 8 is the lever structure schematic diagram,
Fig. 9 is the STRUCTURE DECOMPOSITION figure of stem stalk supporting component,
Figure 10 be the F of " U " word groove stem stalk cushion block to view,
Reference numerals list: 1-base, 2-stem stalk supporting component, 3-cutting assembly, 4-driving member, 5-crop stem, 21-" U " word groove stem stalk cushion blocks, 22-stem stalk bracing frame, 23-bar shaped stem stalk cushion block, 24-stem stalk briquetting, 25-bolt, 31-upper cutter knife, 32-following cutter, 33-knife bar, 34-straight shape knife bar arm, 35-line slide rail, 36-guide rail bracket, 37-bending knife bar arm, the platform of 39-projection, 310-edge of a knife bar, 41-tooth rest, 42-gear, 43-following tooth bar, 44-upper rack, 45-universal testing machine contiguous block.
Embodiment
Below in conjunction with the drawings and specific embodiments, further illustrate the present invention.Should understand following embodiment only is used for explanation the present invention and is not used in and limits the scope of the invention.Need to prove, word " preceding ", " back ", " left side ", " right side ", the "up" and "down" used are described below refer to the direction in the accompanying drawing, word " interior " and " outward " refer to respectively towards or away from the direction of specific features geometric center.
By reference to the accompanying drawings as seen, the two moving knife cutting test devices of this single stem stalk, comprise base 1, cutting assembly 3 is installed on the base 1, stem stalk supporting component 2 and driving member 4, described cutting assembly 3 comprises the upper cutter knife vertical with base 1 31 and following cutter 32, upper cutter knife 31 and following cutter 32 are fixed on the front end of straight shape knife bar arm 34 and bending knife bar arm 37 respectively by knife bar 33, described stem stalk supporting component 2 comprises " U " word groove stem stalk cushion block 21, upper cutter knife 31 and following cutter 32 lay respectively at vertical direction and the below of " U " word groove of " U " word groove stem stalk cushion block 21, described transmission structure 4 comprises the gear 42 that is fixed on the tooth rest 41, the horizontal bilateral symmetry of gear 42 is provided with upper rack 44 and following tooth bar 43, the flank profil of upper rack 44 and following tooth bar 43 and the flank profil clamping of gear 42, gear 42 rotations can drive upper rack 44 and following tooth bar 43 moves up and down; Straight shape knife bar arm 34 is fixing with upper rack 44, and bending knife bar arm 37 and following tooth bar 43 are fixing.The present invention, base 1 is fixed on the test operation platform, make this experimental rig be in fixed state, universal testing machine contiguous block 45 is connected with universal testing machine, during work, universal testing machine drives the downward rectilinear motion of upper rack, upper rack 44 descends, following tooth bar 43 rises, upper rack 44 drives upper cutter knife 31 by straight shape knife bar arm 34 and descends, and following tooth bar 43 drives cutter 32 ascending motions down by bending knife bar arm 37, and the edge of a knife limit of upper cutter knife 31 and following cutter 32 fits tightly staggered, final upper cutter knife 31 and following cutter 32 overlap in " U " word groove, and " U " word groove is positioned at the horizontal center of upper cutter knife 31 and following cutter 32; Bar shaped stem stalk cushion block 23 and " U " word groove stem stalk cushion block 21 are held crop stem 5, and be fixed on the platform of stem stalk support 22, two stem stalk briquettings 24 are above crop stem 5, crop stem 5 is stuck in the vee, and connect fastening with bolt 25, make crop stem 5 clamp at stem stalk bracing frame 22, the front end of stem stalk crop 5 stretches out " U " word groove stem stalk cushion block 21, in upper cutter knife 31 and following cutter 32 interlaced processes, crop stem 5 is cut disconnected in " U " word groove, " U " word groove stem stalk cushion block 21 makes has support at the right and left that cuts crop stem 5 cutting parts, crop stem 5 is difficult for bending, and guarantees accuracy of measurement better.Universal testing machine is with data such as the cutting force in its stroke under the suitable frequency record and displacements, and the maximum of the cutting force in the data then is the maximum cutting force of crop stem 5; Each cutting force and displacement data are made the two-dimensional coordinate curve map, and then the area that surrounds of curve and displacement coordinate is the cutting merit of crop stem.
The outside of described straight shape knife bar arm 34 and bending knife bar arm 37 is respectively arranged with line slide rail 35, line slide rail 35 comprises slide block 35-1 and guide rail 35-2, slide block 35-1 is fixed on straight shape, bending knife bar arm 34,37 outsides, guide rail 35-2 one side is stuck in the groove of slide block 35-1, opposite side fixedly has guide rail bracket 36, and the bottom of guide rail bracket 36 is welded on the base plate 1.36 pairs of cutting assemblies 3 of guide rail bracket play vertical supporting role, keeping movement locus is straight line, when upper rack 44 moves down, straight shape knife bar arm 34 is followed slide block 35-1 and is moved down together, slide block 35-1 is mobile at guide rail 35-2, guide rail 35-2 is the track that slide block 35-1 moves, and straight shape knife bar arm 34 drives upper cutter knife 31 and moves down; Upper rack 43 moves downward by gear 42 transmissions, and tooth bar 44 moves upward under driving, and cutter 32 moves upward thereby drive down.
Described upper cutter knife 31 and following cutter 32 all are isosceles-trapezium-shaped, the bottom of isosceles trapezoid and knife bar 33 are fixing, and the waist limit of isosceles trapezoid is edge of a knife limit 310, and edge of a knife limit 310 is the zigzag edge of a knife that tilts towards the cutter outside, upper and lower cutter 31,32 inboard relatively, fit tightly contact.Serrated edge is the blade that weares and teares certainly, and sawtooth can continue to compensate the sawtooth flank profil in a certain amount of stem stalk wearing and tearing of cutting back, increases the service life.
There is the platform 39 of projection at described knife bar 33 two ends, and upper cutter knife 31 and following cutter 32 are separately fixed between the platform 39 of two ends projection.The platform 39 of projection is just coplanar with upper and lower cutter 31,32 relative inner, and upper and lower cutter 31,32 is fitted staggered when mobile, and is mobile without hindrance, more smooth and easy.
Described " U " word groove stem stalk cushion block 21 is fixed on a lateral edges of " T " font stem stalk bracing frame 22, " U " word groove is exposed at the outside of stem stalk support bar 22, be provided with stem stalk briquetting 24 above " U " word groove stem stalk cushion block 21, stem stalk briquetting 24, " U " word groove stem stalk cushion block 21 are fixedlyed connected by bolt 25 with stem stalk bracing frame 22; The opposite side of stem stalk bracing frame 22 is provided with bar shaped stem stalk cushion block 23 and stem stalk briquetting 24, the three is fixing by bolt 25, be provided with vee in the middle of stem stalk briquetting 24 lower surfaces, vee and bar shaped stem stalk cushion block 23 and " U " word groove stem stalk cushion block 21 form stem stalk passage.Stem stalk crop 5 is sent to from stem stalk passage in the middle of upper cutter knife 31 and the following cutter 32, the front end pad of crop stem 5 is on the stem stalk cushion block of the both sides of " U " word groove, prevent crop stem 5 sagging distortion, crop stem 5 is in level when being cut, the edge of a knife is vertical with crop stem 5, cut the most laborsavingly, edge of a knife wearing and tearing are minimum, can guarantee accuracy of measurement better.
Employed universal testing machine in this patent, model is: the sub-universal testing machine WDW-10 of microcomputer controlled electro, manufacturer is: Jinan skilled worker's testing machine Co., Ltd, can buy gained in market.
The disclosed technological means of the present invention program is not limited only to the disclosed technological means of above-mentioned technological means, also comprises the technical scheme of being made up of above technical characterictic any combination.
Claims (8)
1. two moving knife cutting test devices of single stem stalk, it is characterized in that comprising base, cutting assembly, stem stalk supporting component and driving member are installed on the base, described cutting assembly comprises the upper cutter knife vertical with base and following cutter, upper cutter knife and following cutter are fixed on the front end of straight shape knife bar arm and bending knife bar arm respectively by knife bar, the rear end of straight shape knife bar arm and bending knife bar arm is connected on the driving member, described stem stalk supporting component comprises " U " word groove stem stalk cushion block, and two cutteves lay respectively at vertical direction and the below of " U " word groove of " U " word groove stem stalk cushion block.
2. two moving knife cutting test devices of single stem stalk according to claim 1, the outside that it is characterized in that described straight shape knife bar arm and bending knife bar arm is respectively arranged with line slide rail, line slide rail comprises slide block and guide rail, slide block is fixed on straight shape, the bending knife bar arm outside, guide rail one side is stuck in the groove of slide block, opposite side fixedly has guide rail bracket, and the bottom of guide rail bracket is welded on the base plate.
3. two moving knife cutting test devices of single stem stalk according to claim 1, it is characterized in that described upper cutter knife and following cutter all are isosceles-trapezium-shaped, bottom and the knife bar of isosceles trapezoid are fixed, the waist limit of isosceles trapezoid is edge of a knife limit, edge of a knife limit is the zigzag edge of a knife that tilts towards the cutter outside, the inboard of two cutteves fits tightly contact relatively.
4. the two moving knife cutting test devices of single stem stalk according to claim 1 is characterized in that there is the platform of projection at described knife bar two ends, and upper cutter knife and following cutter are separately fixed between the platform of two ends projection, and the platform of projection flushes with the upper and lower cutter outside.
5. two moving knife cutting test devices of single stem stalk according to claim 1, it is characterized in that described " U " word groove stem stalk cushion block is fixed on a lateral edges of " T " font stem stalk bracing frame, " U " word groove is exposed at the outside of stem stalk support bar, be provided with stem stalk briquetting above " U " word groove stem stalk cushion block, stem stalk briquetting, " U " word groove stem stalk cushion block and stem stalk bracing frame are bolted to connection; The opposite side of stem stalk bracing frame is provided with bar shaped stem stalk cushion block and stem stalk briquetting, and the three has vee by bolt in the middle of the stem stalk briquetting lower surface, and vee and bar shaped stem stalk cushion block and " U " word groove stem stalk cushion block form stem stalk passage.
6. two moving knife cutting test devices of single stem stalk according to claim 1, it is characterized in that described driving member comprises the gear that is fixed on the tooth rest, the horizontal bilateral symmetry of gear is provided with upper rack and following tooth bar, the flank profil clamping of the flank profil of upper and lower tooth bar and gear.
7. two moving knife cutting test devices of single stem stalk according to claim 6 is characterized in that described straight shape knife bar arm and upper rack fix, and bending knife bar arm and following tooth bar are fixed.
8. the two moving knife cutting test devices of single stem stalk according to claim 7 is characterized in that described upper rack top is provided with the universal testing machine contiguous block.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310187133.XA CN103283378B (en) | 2013-05-20 | 2013-05-20 | Single-stalk cutting test device with double moving cutters |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310187133.XA CN103283378B (en) | 2013-05-20 | 2013-05-20 | Single-stalk cutting test device with double moving cutters |
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| Publication Number | Publication Date |
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| CN103283378A true CN103283378A (en) | 2013-09-11 |
| CN103283378B CN103283378B (en) | 2015-06-17 |
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| CN201310187133.XA Expired - Fee Related CN103283378B (en) | 2013-05-20 | 2013-05-20 | Single-stalk cutting test device with double moving cutters |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103703924A (en) * | 2013-12-23 | 2014-04-09 | 江苏大学 | Bur clover harvesting method and bur clover harvester |
| CN104813802A (en) * | 2015-04-29 | 2015-08-05 | 广西大学 | Clamping mechanism of sugarcane feeding cutting experimental device for sugarcane harvester |
| CN107822180A (en) * | 2017-11-30 | 2018-03-23 | 广西大学 | A kind of pneumatic garlic rhizoma cutter device of electromechanical |
| CN110108473A (en) * | 2019-06-04 | 2019-08-09 | 南京工程学院 | A kind of double acting knife cutting test device of transverse direction vines |
| CN113008777A (en) * | 2021-03-05 | 2021-06-22 | 肖宗源 | Cutting force test jig under different circumstances of maize stalk |
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| CN2925045Y (en) * | 2006-06-05 | 2007-07-25 | 镇江农业机械技术推广站 | Vertical cutter of rape harvester |
| CN201311382Y (en) * | 2008-12-15 | 2009-09-16 | 中国农业大学 | Straw cutting performance testing table |
| CN202177520U (en) * | 2011-03-31 | 2012-03-28 | 江苏大学 | Single stem cutting test device |
| CN203243706U (en) * | 2013-05-20 | 2013-10-23 | 农业部南京农业机械化研究所 | Test device for single-stalk double-moving-cutter cutting |
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2013
- 2013-05-20 CN CN201310187133.XA patent/CN103283378B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2925045Y (en) * | 2006-06-05 | 2007-07-25 | 镇江农业机械技术推广站 | Vertical cutter of rape harvester |
| CN201311382Y (en) * | 2008-12-15 | 2009-09-16 | 中国农业大学 | Straw cutting performance testing table |
| CN202177520U (en) * | 2011-03-31 | 2012-03-28 | 江苏大学 | Single stem cutting test device |
| CN203243706U (en) * | 2013-05-20 | 2013-10-23 | 农业部南京农业机械化研究所 | Test device for single-stalk double-moving-cutter cutting |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103703924A (en) * | 2013-12-23 | 2014-04-09 | 江苏大学 | Bur clover harvesting method and bur clover harvester |
| CN103703924B (en) * | 2013-12-23 | 2016-08-31 | 江苏大学 | A kind of seedling grass harvesting method and cropper |
| CN104813802A (en) * | 2015-04-29 | 2015-08-05 | 广西大学 | Clamping mechanism of sugarcane feeding cutting experimental device for sugarcane harvester |
| CN107822180A (en) * | 2017-11-30 | 2018-03-23 | 广西大学 | A kind of pneumatic garlic rhizoma cutter device of electromechanical |
| CN110108473A (en) * | 2019-06-04 | 2019-08-09 | 南京工程学院 | A kind of double acting knife cutting test device of transverse direction vines |
| CN110108473B (en) * | 2019-06-04 | 2024-03-19 | 南京工程学院 | Transverse stem and vine double-acting cutter cutting test device |
| CN113008777A (en) * | 2021-03-05 | 2021-06-22 | 肖宗源 | Cutting force test jig under different circumstances of maize stalk |
| CN113008777B (en) * | 2021-03-05 | 2023-09-19 | 安徽四惠电缆有限公司 | Cutting dynamics test frame under different situations of maize stalk |
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| CN103283378B (en) | 2015-06-17 |
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