CN102511221A - Level adjusting mechanism for field seedling raising precision seeding machine - Google Patents
Level adjusting mechanism for field seedling raising precision seeding machine Download PDFInfo
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- CN102511221A CN102511221A CN2011104489649A CN201110448964A CN102511221A CN 102511221 A CN102511221 A CN 102511221A CN 2011104489649 A CN2011104489649 A CN 2011104489649A CN 201110448964 A CN201110448964 A CN 201110448964A CN 102511221 A CN102511221 A CN 102511221A
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Abstract
The patent of invention discloses a level adjusting mechanism for a field seedling raising precision seeding machine and mainly relates to the technical field of agricultural precision seeding machines. The level adjusting mechanism is characterized in that a parallel mechanism with two rotation and one translation is constituted by three different branch chains, a static platform and a mobile platform, wherein three sliding pairs serve as drive pairs; movement driving is realized in a mechanical manual adjustment manner; and the horizontal position of the seeding machine is adjusted by adjusting the displacements of the three sliding pairs. The level adjusting mechanism has the advantages of simple mechanism, low cost and compact structure, provides convenience for users to adjust the horizontal position of the seeding machine and provides conditions for realization of field seedling raising precision seeding.
Description
Technical field
The invention belongs to the agricultural seeding machine technical field, be specifically related to a kind of field precise seeder for raising level-off mechanism.
Background technology
Sowing is the important technical links in the agricultural production process, along with the high speed development of China's economic society, and the continuous progress of agricultural science and technology, the enforcement of precision agriculture is had higher requirement to seeding quality.Sower is the main means that realize mechanization precise sowing technology, and the quality of its performance directly influences upgrowth situation and the output of seeding quality and crops.The field precise seeder for raising that the present invention matches is a kind of aspiration vibration disc type precision planter, and it utilizes kind of a disc vibration to make material form " quasi-fluid ", and seed is separated from each other, and accomplishes precise sowing so that strength is inhaled kind of parts.Thrown in Zheng's process at seed and to require vibration kind of a dish to do up-down vibration, seed is done vertically and is moved up and down.Yet because the difference of field operating mode, even through the processing before the seedling, also certainly exist the irregular situation of some places, this just needs a kind of level(l)ing device to make sower vibration kind of a dish in the sowing process, keep level.
Level(l)ing mechanism of the present invention is a kind of two rotation-translation three-freedom degree spatial parallel structures, selects three moving sets as driving auxiliary, and it can accurately realize the requirement of both direction angular adjustment.Mechanism is in the level-off process; At first on sower vibration kind of dish crossbeam, adorn the digital display instrument of two angle levels; It can show sowing machine dish tilt condition; Just can guarantee to vibrate the level of kind of dish through the back of converting through the adjusting of level-off mechanism, condition is provided for realizing aspiration vibration disc type field seedling precise sowing.
When doing driving auxiliary, can adopt moving sets the form such as combining form and the driving of armstrong's patent device of hydraulic drive cylinder, linear electric motors, electric rotating machine and mechanical switching device.Hydraulic drive cylinder needs elements such as hydraulic pump, hydraulic valve to realize when driving, and control is complicated, price height but the controlled precision is very high.Load can not too greatly and cost an arm and a leg during linear motor driving.The complicated volume of the drives structure of electric rotating machine and mechanical device conversion is also bigger.Because two loops of level-off parallel institution of the present invention form that is decoupling zeros can be with the armstrong's patent device as the operation that drives the realization level to regulate, this driving auxiliary apparatus structure is simple, low price, easy to operate and precision is higher.
Summary of the invention
But the objective of the invention is to provide a kind of implementation space mechanism that two dimension is rotated, satisfy the problem that field precise seeder for raising vibration kind of dish keeps level.
Realize that technical scheme of the present invention is:
Field precise seeder for raising level-off mechanism is made up of three side chain AB, EDC, HGF of fixed platform, moving platform and connection fixed platform and moving platform, and the A place of side chain AB links with the fixed platform moving sets, and the B place of side chain AB links with the moving platform revolute pair; Side chain EDC is made up of side chain ED and side chain DC, and the E place of side chain ED links with the fixed platform moving sets, and the D place of side chain ED links with side chain DC revolute pair, and the C place of side chain DC links with the moving platform revolute pair; Side chain HGF is made up of side chain HG and side chain GF, and the H place of side chain HG links with the fixed platform moving sets, and the G place of side chain HG links with side chain GF ball is secondary, and the F place of side chain GF links with the moving platform ball is secondary, and moving platform BCF rotates around the BC axis at the I place.The line quadrature of the line of A, E and A, H.This level-off mechanism, can realize that two dimension is rotated satisfies the problem that field seedling aspiration vibration disc type precision planter vibration kind of dish keeps level.
Move driving auxiliary by the upper plate of circlip for shaft, taper roll bearing, bearing cap, band internal thread hole, regulate screw mandrel, with upper end kinematic pair connecting hole, support bar, form with road wheel connecting hole, lower bottom base.Level-off when operation, unclamp the nut on the support bar earlier, regulate screw mandrel through hand-turned, thereby the upper plate of band internal thread hole is moved up, thereby realize moving the requirement that drives, this device low price, easy to operate and precision is higher.
The invention has the advantages that:
(1) this two rotation-translations parallel institution is simple in structure, and its kinematics two loop equations are independently, and input is analytic solutions with output relation.
(2) this mechanism has advantages such as simple in structure, that rigidity is big, working space is big.
(3) simple, the low price of this driving auxiliary apparatus structure, easy to operate and precision is higher.
(4) this field precise seeder for raising level-off mechanism kinematic precision is high, is easy to control, can realize the requirement of level-off under the adverse circumstances.
Description of drawings
Below in conjunction with accompanying drawing and embodiment the present invention is described further.
Fig. 1 is a field of the present invention precise seeder for raising level-off mechanism structure sketch map.
As shown in the figure, label is represented respectively among the figure: AHE---silent flatform, BCF---moving platform, A, E, H---moving sets (P is secondary), B, C, D, I---revolute pair (R is secondary), G, F---ball secondary (S is secondary).
Fig. 2 is a field of the present invention precise seeder for raising level-off mechanism driving auxiliary structural representation.
As shown in the figure, label is represented respectively among the figure: 1, and------------upper plate, 5 of band internal thread hole---is regulated screw mandrel, 6------support bar, 8---with road wheel connecting hole, the 9---lower bottom base with upper end kinematic pair connecting hole, 7 to bearing cap, 4 to taper roll bearing, 3 to circlip for shaft, 2.
Embodiment
As shown in Figure 1; Patent of the present invention field precise seeder for raising level-off parallel institution is made up of three side chain AB, EDC, HGF of fixed platform, moving platform and connection fixed platform and moving platform; The A place of side chain AB links with the fixed platform moving sets, and the B place of side chain AB links with the moving platform revolute pair; Side chain EDC is made up of side chain ED and side chain DC, and the E place of side chain ED links with the fixed platform moving sets, and the D place of side chain ED links with side chain DC revolute pair, and the C place of side chain DC links with the moving platform revolute pair; Side chain HGF is made up of side chain HG and side chain GF, and the H place of side chain HG links with the fixed platform moving sets, and the G place of side chain HG links with side chain GF ball is secondary, and the F place of side chain GF links with the moving platform ball is secondary, and moving platform BCF rotates around the BC axis at the I place.The line quadrature of the line of A, E and A, H.Three mobile driving auxiliary by the upper plate 4 of circlip for shaft 1, taper roll bearing 2, bearing cap 3, band internal thread hole, regulate screw mandrel 5, with upper end kinematic pair connecting hole 6, support bar 7, form with road wheel connecting hole 8, lower bottom base 9.
According to the characteristics of field aspiration vibration disc type precision planter kind dish motion, draw the necessity of sower work level-off in the field.Analyze the kinetic characteristic of this parallel institution degree of freedom and moving platform; Draw this parallel institution and have three degree of freedom; The freely-movable of moving platform is along the moving of Z axle, around with the rotation of X axle with around the rotation of Y axle, can satisfy the requirement of level-off, has selected three moving sets as driving auxiliary.Parallel institution has been carried out positive and negative the separating in position to be analyzed the position that has drawn mechanism input and output and concerns mathematic(al) representation.During the level-off operation; At first obtain being contained in sower and vibrate kind of two angles of coiling the sowing machine dish heeling condition of the digital display instrument demonstration of two angle levels on the crossbeam, obtain the value that three mobile driving auxiliary need be regulated after the position relational expression conversion of input of process mechanism and output.Unclamp the nut on the support bar 7 then; Rotate the number of turns of regulating screw mandrel 5 through manual adjustment; The needed regulated value thereby the upper plate 4 that makes the band internal thread hole moves up; Reach the requirement of precise sowing machine vibration kind dish level-off, just can guarantee to vibrate the level of kind of dish, condition is provided for realizing aspiration vibration disc type field seedling precise sowing through the adjusting of level(l)ing mechanism.
This level-off mechanism low price, control is easier to, easy to operate and precision is higher, can realize the requirement of level-off under the adverse circumstances, can also be applied to other level-off occasion.
Claims (2)
1. field precise seeder for raising level-off mechanism; It is characterized in that; Mechanism is by fixed platform, moving platform and connect the two rotation-translation parallel institutions that three side chain AB, EDC, HGF of fixed platform and moving platform form; The A place of side chain AB links with the fixed platform moving sets, and the B place of side chain AB links with the moving platform revolute pair; Side chain EDC is made up of side chain ED and side chain DC, and the E place of side chain ED links with the fixed platform moving sets, and the D place of side chain ED links with side chain DC revolute pair, and the C place of side chain DC links with the moving platform revolute pair; Side chain HGF is made up of side chain HG and side chain GF, and the H place of side chain HG links with the fixed platform moving sets, and the G place of side chain HG links with side chain GF ball is secondary, and the F place of side chain GF links with the moving platform ball is secondary, and moving platform BCF rotates around the BC axis at the I place.
2. according to the described a kind of field of right 1 precise seeder for raising level-off mechanism; It is characterized in that; Article three, the moving sets in the side chain adopts the armstrong's patent structure as drive source, this driving auxiliary by the upper plate (4) of circlip for shaft (1), taper roll bearing (2), bearing cap (3), band internal thread hole, regulate screw mandrel (5), with upper end kinematic pair connecting hole (6), support bar (7), form with road wheel connecting hole (8), lower bottom base (9); Described circlip for shaft (1) is stuck in the groove of regulating screw mandrel (5); Match with lower bottom base (9) in the outer ring of said taper roll bearing (2); Described adjusting screw mandrel (5) one ends are screw mandrels, and the other end is the step that cooperates with taper roll bearing (2), and an end of screw mandrel is through on the upper plate (4) that is threadedly connected to the band internal thread hole, and an end of step matches with the inner ring of taper roll bearing (2); Described steady arm (7) is the screw mandrel of full thread, and two ends are connected on the upper plate (4) and lower bottom base (9) of band internal thread hole through nut respectively; Said bearing cap (3) is connected on the lower bottom base (9) through screw, and said upper plate (4) is provided with boss, and said boss is offered and upper end kinematic pair connecting hole (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011104489649A CN102511221A (en) | 2011-12-29 | 2011-12-29 | Level adjusting mechanism for field seedling raising precision seeding machine |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011104489649A CN102511221A (en) | 2011-12-29 | 2011-12-29 | Level adjusting mechanism for field seedling raising precision seeding machine |
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| CN102511221A true CN102511221A (en) | 2012-06-27 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2011104489649A Pending CN102511221A (en) | 2011-12-29 | 2011-12-29 | Level adjusting mechanism for field seedling raising precision seeding machine |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113224556A (en) * | 2021-05-07 | 2021-08-06 | 广东电网有限责任公司梅州供电局 | Grounding assembly |
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2011
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| JP2001235001A (en) * | 2000-02-22 | 2001-08-31 | Sankyo Seiki Mfg Co Ltd | Link mechanism having two degree of freedom |
| DE10019162A1 (en) * | 2000-04-12 | 2001-10-25 | Kai Anding | Movement system with cylindric glide has three linear drives, and fixed linear guide, work platform fixed to three ball and socket joints each with linear drive |
| CN1526514A (en) * | 2003-09-24 | 2004-09-08 | 杨廷力 | Parallel mechanisms for imaginary axis machine tool, measurer, etc. |
| EP1839804B1 (en) * | 2006-03-31 | 2009-12-02 | Jtekt Corporation | Three degree of freedom parallel mechanism, multi-axis control machine tool using the mechanism and control method for the mechanism |
| CN101249651A (en) * | 2008-04-09 | 2008-08-27 | 东华大学 | Decoupled false shaft machine tool and two-rotary and one-moving parallel connection mechanism |
| CN101745820A (en) * | 2009-12-14 | 2010-06-23 | 北京航空航天大学 | Three-degree-of-freedom parallel mechanism type dual head for five-axis machine tools and control method |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113224556A (en) * | 2021-05-07 | 2021-08-06 | 广东电网有限责任公司梅州供电局 | Grounding assembly |
| CN113224556B (en) * | 2021-05-07 | 2022-09-30 | 广东电网有限责任公司梅州供电局 | Grounding assembly |
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Application publication date: 20120627 |