CN205385693U - Blade has bionical sawtooth geometry's subsoiler handle - Google Patents
Blade has bionical sawtooth geometry's subsoiler handle Download PDFInfo
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- CN205385693U CN205385693U CN201620012798.6U CN201620012798U CN205385693U CN 205385693 U CN205385693 U CN 205385693U CN 201620012798 U CN201620012798 U CN 201620012798U CN 205385693 U CN205385693 U CN 205385693U
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Abstract
The utility model relates to a blade has bionical sawtooth geometry's subsoiler handle belongs to agricultural machinery technical field. The blade circular arc of subsoiler handle distribute and to have bionical sawtooth geometry, bionical sawtooth geometry's prong angle beta is 30 to 120, back of tooth angle alpha is 15 to 60, throat of tooth angle gamma is 15 to 60, tooth depth h is 5mm to 30mm, sawtooth geometry is periodicity along subsoiler handle blade circular arc and arranges in proper order. The utility model discloses when guaranteeing dark pine work quality, can make subsoiler working resistance reduce to, for prior art, this blade structure can obviously reduce the processing cost, is convenient for promote in working ability backward areas realization.
Description
Technical field
This utility model relates to a kind of cutting edge and has the subsoiling spade of bionical sawtooth geometry, belongs to technical field of agricultural mechanical equipment.
Background technology
Subsoiling refers to the deep ploughing method not turning over random soil layer with deep soil loosing shovel chesson.Agricultural land soil has the existence of the difficult pervious bed such as plough sole or claypan, limits crop root stretching, extension and rainwater is store deeply.Turning over and be difficult to break this impermeable stratum, soil layer overturns easily caused by the loss of moisture simultaneously.Subsoiling is adopted to be possible not only to break or eliminate the claypan in plough sole or soil, deepen arable layer, it is easy to root system stretch downwards, and can soil layer not disorderly, the soil microflora keeping former topsoil is distributed, available nutrient gradient and the gradation of moisture, ripening substratum, reduces the unproductive consumption of the soil organism, also can make plant growth on mellow soil, it is thus achieved that the good supply of liquid manure.After subsoiling, soil surface keeps original state, can alleviate scattering and disappearing of wind erosion, water erosion and soil moisture.Subsoiling, as a kind of important conservation tillage pattern, has been obtained for being widely applied.
Although Subsoiler has as above plurality of advantages, but deep soil loosing shovel when carrying out Subsoiler working resistance be always up greatly the technical barrier that farm machinery tillage mechanical field fails effectively to solve for many years, deep soil loosing shovel tillage resistance not only results in greatly energy consumption and raises, makes agriculture production cost be greatly increased.More seriously, owing to Subsoiler resistance is big, when carrying out big fabric width operation it is necessary to have big-powered tractor is as the guarantee of power source, and China is for the manufacturing technology of big-powered tractor and limited in one's ability, thus limiting the popularization and application of deep loose plough pattern, therefore, the tillage resistance of deep soil loosing shovel how is reduced, energy-saving and cost-reducing, promote that the popularization and application of deep loose plough pattern have become as the important topic of current agricultural tillage machinery area research.In addition, along with agricultural modernization technology is to development energy-saving and cost-reducing, sustainable, environmental protection direction, the various typical soil-engaging components such as deep soil loosing shovel, also in continuous raising, are particularly had higher requirement by the operation quality mechanical to agricultural tillage and horsepower requirements.
Research finds, in the course of the work, after tilling depth is stable, the resistance of deep loose plough mostlys come from two aspects to deep soil loosing shovel, and one is that subsoiling spear breaks the soil resistance to shovel during plough sole；Two is the soil resistance that subsoiling spade breaks suffered by surface layer.And the working resistance of subsoiling spade mostlys come from the spade cutting edge plough to the hard soil layer in earth's surface that breaks ground and cuts effect, therefore, if being reduced by the resistance that breaks ground of spade, the working resistance of deep soil loosing shovel can will be reduced.Research confirms, its service behaviour is had appreciable impact by the geometry of deep soil loosing shovel, and improves its service behaviour and can greatly reduce its operating cost.What deep soil loosing shovel broke that the hard soil layer in hard earth's surface relies primarily on is the cutting edge that breaks ground of spade, and therefore, spade breaks ground the shape of cutting edge and version directly determines subsoiling spade and breaks ground the size of resistance.
Bionics with reside in biological and natural in feature or form for source, by means of modem technology, it is imitated, it is achieved specific technical functionality or target.This is owing to organism was through the very long evolution of 3,500,000,000 years, defines special shape and the structure of the optimization of self so that it is adapt to transition existence and the procreation of environment.Find in practice, difficult scientific problems in many human developments can find satisfactory answer from biological and natural, using bionics principle to solve engineering problem and have become as a much progress of world today's scientific technological advance, modern bionic research has almost penetrated into industrial every field with application.
Some function being had by organism surface histoorgan is applied among the design of agricultural machinery, to meet the combination that engineering needs are bionics and Agricultural Machinery Design with manufacture.Research finds, many soil burrowing animals with efficient mining ability in nature, as Gryllotalpa (GryllotalpaorientalisBurmeister), mole (Scaptochirusmoschatus), Copris ochus (CoprisochusMotschulsky), its limbs outer margin contour being used for excavating soil of Squama Manis (Manispentadactyla) have special structure and form, when these special special structures and form enable soil burrowing animal digging, pawl toe cuts soil easily, and realizes efficient excavating continuously.Reducing energy expenditure to greatest extent, improve work efficiency, these features just can provide for the Bionic Design of agricultural machinery and well use for reference.
But, the currently known agricultural machinery and implement with bionic geometric structure often adopt complex curve form, despite excellent operation effectiveness, find in reality is promoted, China's agricultural machinery and implement processing enterprise technology and equipment are comparatively backward, existing bionic geometric structure facility processing and manufacturing is difficult, relatively costly, thus limiting development and the popularization of bionical agricultural machinery and implement.For the problems referred to above, it is necessary to farthest simplify agricultural machinery and implement bionic geometric structure form so that it is be easy to processing and manufacturing, so that the bionical agricultural machinery and implement of excellent performance realize in China productivity backward areas promoting.
Summary of the invention
The technical problems to be solved in the utility model is: this utility model provides a kind of cutting edge to have the subsoiling spade of bionical sawtooth geometry, for overcoming, existing deep soil loosing shovel operation resistance is big, energy consumption is high, and the problem that the agricultural machinery and implement difficulty of processing of complex curve structure is big, this utility model with there is efficient mining ability soil burrowing animal pawl toe for bionical prototype, carry out abstract and simplify, cutting edge that the spade of deep soil loosing shovel is broken ground carries out bionic geometric structure design, to reduce the target of the tillage resistance of deep soil loosing shovel, and reduce the processing cost of bionic geometric structure deep soil loosing shovel.
Found by big quantity research, many soil burrowing animals with efficient mining ability in nature, it has special geometry for the limbs outer margin contour excavating soil, although these geometry sizes have very big-difference, but outer margin contour all has jagged architectural feature, based on above-mentioned discovery, this utility model solves the technical scheme is that integrated learning different soils burrowing animal of its technical problem and excavates the laciniation feature of organ outer margin contour, conclude its geometry feature general character and rule, extract, abstract and at utmost simplify these special broached-tooth designs, it is applied to the bionic geometric structure design of subsoiling spade cutting edge.
The concrete technical scheme of this utility model is: a kind of cutting edge has the subsoiling spade of bionical sawtooth geometry, and the cutting edge circular arc distribution of described subsoiling spade has bionical sawtooth geometry, and the tooth angle β of described bionical sawtooth geometry is 30 ° to 120 °；Clearance angle α is 15 ° to 60 °；Throat of tooth angle γ is 15 ° to 60 °；Tooth depth h is 5mm to 30mm；Sawtooth geometry is arranged in order along subsoiling spade cutting edge circular arc in periodicity.
Described tooth angle β is AC limit and AB limit angle；Tooth angle β is the angle of reflection antialiased intensity, and the little then sawtooth of tooth angle is sharp keen, to the sawing of soil is comparatively smooth and consumption power is little.But as tooth angle is too small, the mechanical property of broached-tooth design unit reduces, if deep soil loosing shovel operation process running into stiff soil or stone is easily bent and fractures；Tooth angle increases, and sawtooth is firm, if but excessive, then cutting resistance is big, it is big to consume power, sawing is not smooth.Considering factors above, the subsoiling spade tooth angle with bionical sawtooth geometry is set to 30 ° to 120 °；
Described Clearance angle α is the angle on AB limit and the extended line of OA；Clearance angle α is another basic angle of sawtooth, and it directly affects the size of the back of tooth and the frictional force of earth materials, affects the eliminating of the soil after sawing.Clearance angle increases, and tooth angle then reduces accordingly, and such sawtooth is sharp keen, and sawing is smooth；And if the back of tooth is too small, tooth angle is excessive accordingly, and sawtooth is in sawing process, and suffered by its back, the pressure of blank also increases therewith, and consequent frictional force also will increase therewith, increases power consumption simultaneously.Considering factors above, the subsoiling spade Clearance angle with bionical sawtooth geometry is set to 15 ° to 60 °；
Described throat of tooth angle γ is the extended line of OA and the angle on AC limit；Throat of tooth angle γ is one of basic angle of sawtooth, and the impact of sawing is very big.In order to improve sawing quality, throat of tooth angle value should be big.Throat of tooth angle is big, and sawtooth is sharp keen, sawing is smooth, power consumption is little.But throat of tooth angle is excessive, and tooth angle is too small, sawtooth can die down not firm, it is easy to bends and fractures.Throat of tooth angle is little, and tooth angle is big, and sawtooth is firm effectively.But throat of tooth angle is too small, and tooth angle is excessive, sawtooth just not sharp keen, sawing also not smooth, power consumption is also big.Considering factors above, the subsoiling spade throat of tooth angle with bionical sawtooth geometry is set to 15 ° to 60 °；
Described tooth depth h is a distance on A Yu BC limit；The size of reflection sawtooth geometry, for 5mm to 30mm；Sawtooth geometry is arranged in order along subsoiling spade cutting edge circular arc in periodicity；
Wherein, some O is the subsoiling spade circular arc center of curvature, and some A is the summit of sawtooth geometry drift angle, and some B is the summit at the left base angle of sawtooth geometry, and some C is the summit at the right base angle of sawtooth geometry.
The beneficial effects of the utility model are: the subsoiling spade with bionical sawtooth geometry compares with tradition subsoiling spade cutting edge, have the subsoiling spade of bionical sawtooth geometry by tradition subsoiling spade to the impact cutting of soil, cut sth. askew, sliding cutting mode has become the sawing mode that resistance is less, under the premise ensureing operation quality, under different tilling depth and operating speed, working resistance can reduce, drag-reduction effect is obvious, thus operation energy expenditure can be greatly reduced.The bionical sawtooth geometry adopted is by conventional conventional process tools and technique, based on existing China machinery industry standard JB9788-1999 subsoiling further machining processes of spade finished product, bionic geometric structure subsoiling spade can be obtained, it is easily achieved and greatly reduces manufacturing cost, it is simple to promoting in China's most area.
Accompanying drawing explanation
Fig. 1 is this utility model structural representation；
Fig. 2 is this utility model structural representation, and wherein sawtooth geometry is unsymmetric structure；
Fig. 3 is this utility model structural representation, and wherein sawtooth geometry is symmetrical structure.
In Fig. 1-3: some O is the subsoiling spade circular arc center of curvature；Point A is the summit of sawtooth geometry drift angle；Point B is the summit at the left base angle of sawtooth geometry, and some C is the summit at the right base angle of sawtooth geometry；Tooth angle β is AC limit and AB limit angle；Clearance angle α is the angle on AB limit and the extended line of OA；Throat of tooth angle γ is the extended line angle with AC limit of OA；Tooth depth h is a distance on A Yu BC limit.
Detailed description of the invention
Below in conjunction with the drawings and specific embodiments, the utility model is described in further detail.
Embodiment 1: as Figure 1-3, a kind of cutting edge has the subsoiling spade of bionical sawtooth geometry, and the cutting edge circular arc distribution of described subsoiling spade has bionical sawtooth geometry, and the tooth angle β of described bionical sawtooth geometry is 30 °；Clearance angle α is 15 °；Throat of tooth angle γ is 15 °；Tooth depth h is 5mm；Sawtooth geometry is arranged in order along subsoiling spade cutting edge circular arc in periodicity.
Described tooth angle β is AC limit and AB limit angle, and Clearance angle α is the angle on AB limit and the extended line of OA, and throat of tooth angle γ is the extended line angle with AC limit of OA, and tooth depth h is a distance on A Yu BC limit；
Wherein, some O is the subsoiling spade circular arc center of curvature, and some A is the summit of sawtooth geometry drift angle, and some B is the summit at the left base angle of sawtooth geometry, and some C is the summit at the right base angle of sawtooth geometry.
In this embodiment, sawtooth geometry is characterized as being: throat of tooth angle is equal to Clearance angle, and tooth angle takes smaller value, the arrangement of this sawtooth geometry is fine and close, cutting edge is sharp keen, it is easy to cut off, crush field soil crop cover, but it is poor that shortcoming is tool edge wear-proof, it is easily damaged broached-tooth design with soil during stone collision during operation, and processing cost is higher.
Embodiment 2: as Figure 1-3, a kind of cutting edge has the subsoiling spade of bionical sawtooth geometry, and the cutting edge circular arc distribution of described subsoiling spade has bionical sawtooth geometry, and the tooth angle β of described bionical sawtooth geometry is 120 °；Clearance angle α is 60 °；Throat of tooth angle γ is 60 °；Tooth depth h is 30mm；Sawtooth geometry is arranged in order along subsoiling spade cutting edge circular arc in periodicity.
Described tooth angle β is AC limit and AB limit angle, and Clearance angle α is the angle on AB limit and the extended line of OA, and throat of tooth angle γ is the extended line angle with AC limit of OA, and tooth depth h is a distance on A Yu BC limit；
Wherein, some O is the subsoiling spade circular arc center of curvature, and some A is the summit of sawtooth geometry drift angle, and some B is the summit at the left base angle of sawtooth geometry, and some C is the summit at the right base angle of sawtooth geometry.
In this embodiment, sawtooth geometry is characterized as being: throat of tooth angle is equal to Clearance angle, and tooth angle takes higher value, this broached-tooth design is firm wear-resisting, during operation, soil block solid in soil is had good fragmentation, and processing cost is relatively low, but shortcoming to be operation resistance relatively big, cutting edge easily twines grass.
Embodiment 3: as Figure 1-3, a kind of cutting edge has the subsoiling spade of bionical sawtooth geometry, the cutting edge circular arc distribution of described subsoiling spade has bionical sawtooth geometry, and bionical sawtooth geometry is unsymmetric structure, and the tooth angle β of described bionical sawtooth geometry is 60 °；Clearance angle α is 20 °；Throat of tooth angle γ is 40 °；Tooth depth h is 15mm；Sawtooth geometry is arranged in order along subsoiling spade cutting edge circular arc in periodicity.
Described tooth angle β is AC limit and AB limit angle, and Clearance angle α is the angle on AB limit and the extended line of OA, and throat of tooth angle γ is the extended line angle with AC limit of OA, and tooth depth h is a distance on A Yu BC limit；
Wherein, some O is the subsoiling spade circular arc center of curvature, and some A is the summit of sawtooth geometry drift angle, and some B is the summit at the left base angle of sawtooth geometry, and some C is the summit at the right base angle of sawtooth geometry.
In this embodiment, sawtooth geometry is characterized as being: throat of tooth angle is more than Clearance angle, and tooth angle is less, and sawtooth is sharp keen, sawing is smooth, power consumption is little, but broached-tooth design unit intensity is relatively low, and this embodiment is applicable to the farming area that soil is comparatively soft.
Embodiment 4: as Figure 1-3, a kind of cutting edge has the subsoiling spade of bionical sawtooth geometry, the cutting edge circular arc distribution of described subsoiling spade has bionical sawtooth geometry, and bionical sawtooth geometry is symmetrical structure, and the tooth angle β of described bionical sawtooth geometry is 90 °；Clearance angle α is 45 °；Throat of tooth angle γ is 45 °；Tooth depth h is 16mm；Sawtooth geometry is arranged in order along subsoiling spade cutting edge circular arc in periodicity.
Described tooth angle β is AC limit and AB limit angle, and Clearance angle α is the angle on AB limit and the extended line of OA, and throat of tooth angle γ is the extended line angle with AC limit of OA, and tooth depth h is a distance on A Yu BC limit；
Wherein, some O is the subsoiling spade circular arc center of curvature, and some A is the summit of sawtooth geometry drift angle, and some B is the summit at the left base angle of sawtooth geometry, and some C is the summit at the right base angle of sawtooth geometry.
In this embodiment, sawtooth geometry is characterized as being: throat of tooth angle is equal to Clearance angle, and tooth angle is relatively big, and sawtooth is firm effectively, and sawing resistance is slightly larger, and this embodiment is applicable to the farming area that soil is comparatively solid.
Above in conjunction with accompanying drawing, specific embodiment of the utility model is explained in detail, but this utility model is not limited to above-described embodiment, in the ken that those of ordinary skill in the art possess, it is also possible to make various change under the premise without departing from this utility model objective.
Claims (2)
1. a cutting edge has the subsoiling spade of bionical sawtooth geometry, it is characterised in that: the cutting edge circular arc distribution of described subsoiling spade has bionical sawtooth geometry, and the tooth angle β of described bionical sawtooth geometry is 30 ° to 120 °；Clearance angle α is 15 ° to 60 °；Throat of tooth angle γ is 15 ° to 60 °；Tooth depth h is 5mm to 30mm；Sawtooth geometry is arranged in order along subsoiling spade cutting edge circular arc in periodicity.
2. cutting edge according to claim 1 has the subsoiling spade of bionical sawtooth geometry, it is characterized in that: described tooth angle β is AC limit and AB limit angle, Clearance angle α is the angle on AB limit and the extended line of OA, throat of tooth angle γ is the extended line angle with AC limit of OA, and tooth depth h is a distance on A Yu BC limit；
Wherein, some O is the subsoiling spade circular arc center of curvature, and some A is the summit of sawtooth geometry drift angle, and some B is the summit at the left base angle of sawtooth geometry, and some C is the summit at the right base angle of sawtooth geometry.
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| CN201620012798.6U CN205385693U (en) | 2016-01-08 | 2016-01-08 | Blade has bionical sawtooth geometry's subsoiler handle |
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| CN201620012798.6U CN205385693U (en) | 2016-01-08 | 2016-01-08 | Blade has bionical sawtooth geometry's subsoiler handle |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109060577A (en) * | 2018-09-14 | 2018-12-21 | 昆明理工大学 | It is a kind of for testing the frictional wear test device and method of bionical sample surface |
| CN109463250A (en) * | 2019-01-08 | 2019-03-15 | 海南大学 | A kind of pawl toe Bionic conflguration tapping knife |
| CN110089210A (en) * | 2019-04-24 | 2019-08-06 | 昆明理工大学 | It is a kind of to build innovation mechanical shovel plate with bionic geometric structure |
| CN110149814A (en) * | 2019-04-24 | 2019-08-23 | 昆明理工大学 | It is a kind of using sand fish lizard as the Bionic wear-resisting sport of prototype |
| CN111869402A (en) * | 2020-08-28 | 2020-11-03 | 吉林大学 | Viscosity and resistance reducing potato bionic digging shovel |
| CN113508675A (en) * | 2021-07-19 | 2021-10-19 | 江苏大学 | White radish pulling type combined harvesting viscosity-reducing and resistance-reducing break shovel and harvester |
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2016
- 2016-01-08 CN CN201620012798.6U patent/CN205385693U/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109060577A (en) * | 2018-09-14 | 2018-12-21 | 昆明理工大学 | It is a kind of for testing the frictional wear test device and method of bionical sample surface |
| CN109060577B (en) * | 2018-09-14 | 2024-03-19 | 昆明理工大学 | Friction and wear test device and method for testing surface of bionic sample |
| CN109463250A (en) * | 2019-01-08 | 2019-03-15 | 海南大学 | A kind of pawl toe Bionic conflguration tapping knife |
| CN110089210A (en) * | 2019-04-24 | 2019-08-06 | 昆明理工大学 | It is a kind of to build innovation mechanical shovel plate with bionic geometric structure |
| CN110149814A (en) * | 2019-04-24 | 2019-08-23 | 昆明理工大学 | It is a kind of using sand fish lizard as the Bionic wear-resisting sport of prototype |
| CN110149814B (en) * | 2019-04-24 | 2024-03-29 | 昆明理工大学 | Bionic wear-resistant spring tooth harrow taking sandfish exendin as prototype |
| CN111869402A (en) * | 2020-08-28 | 2020-11-03 | 吉林大学 | Viscosity and resistance reducing potato bionic digging shovel |
| CN113508675A (en) * | 2021-07-19 | 2021-10-19 | 江苏大学 | White radish pulling type combined harvesting viscosity-reducing and resistance-reducing break shovel and harvester |
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