CN206314194U - A kind of coaxial double-rod ejection type eccentric gear non-conical bevel gear planetary system wide-and narrow-row rice seedling throwing mechanism - Google Patents
A kind of coaxial double-rod ejection type eccentric gear non-conical bevel gear planetary system wide-and narrow-row rice seedling throwing mechanism Download PDFInfo
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Abstract
The utility model discloses a kind of coaxial double-rod ejection type eccentric gear non-conical bevel gear planetary system wide-and narrow-row rice seedling throwing mechanism, including gear-box, the gear-box interior support has central gear, lower upper idler gear, lower middle eccentric bevel gear, lower upper planet non-conical bevel gear, and the lower upper planet non-conical bevel gear is coaxially connected with lower upper transplanting arm；Slide to be provided with to slide in hollow loop bar, the hollow loop bar in the planting arm housings and be provided with solid push rod；Double outline cam, shift fork and triggering pulling are hinged with the planting arm housings, the outer end of the hollow loop bar is provided with seedling-taking mechanism；The utility model takes into account eccentric gear using eccentric bevel gear, non-conical bevel gear, the non-space at the uniform velocity than transmission and bevel gear of non-circular gear is driven as transmission mechanism, coordinate coaxial double-rod ejection type planting arm, the agriculture requirement of different wide-and narrow-row rice transplantings can be effectively met, the technological gap of rice-seedling throwing machine is filled up.
Description
Technical field
The utility model is related to agricultural mechanical field, more particularly, to a kind of coaxial double-rod ejection type eccentric gear-not rounded
Bore bevel gear planetary system wide-and narrow-row rice seedling throwing mechanism.
Background technology
Current paddy machinery plantation mainly has three kinds of modes：Live, rice transplanting and rice transplanting.Wherein live is a kind of unordered plantation
Mode and growth period is long, rice transplanting has 5~7 days seedling-slowing stages, and two methods can extend growth period；But rice transplanting does not have seedling-slowing stage,
For common rice shoot, rice transplanting can improve 10-15% yield.In addition rice transplanting has transplanting speed fast, does not hinder the advantage of root, quilt
Rice Cropping expert is recommended as volume increase ratio highest plantation agronomy.But unordered rice transplanting operation is unfavorable for later stage field management,
And the ventilation of influence paddy rice, uniform pickup sunlight and soil nutrient, easily trigger pest and disease damage, be not suitable for the small field plantation of China
National conditions are so as to influence the popularization of rice-seedling throwing machine.Therefore the research and development of ordered seedling throwing mechanism are the keys for solving problem above.
The beginning of the eighties, Japan has produced ordered seedling throwing machinery, and enters market；Due to its complex structure, machining accuracy
It is required that high, high cost, the low many reasons of operating efficiency fail spread, only account for the 0.5% of Monitoring of Paddy Rice Plant Area with
Under.
In addition wide-and narrow-row rice transplanting refers to that the line space of rice seedling thrower carries out one wide one narrow planting patterns, this plantation side
Formula utilizes the principles of increase yield of crop Edge advantages, by adjusting the line space of rice transplanting, improves ventilation, light transmittance between plant, mitigates
Disease, increases leaf area index, extends leaf longevity, accelerates dry-matter accumulation, so as to reach good quality and high output, the mesh of cost-saving synergistic
's.
Wide-narrow row transplanting mechanism is to realize that seedling taking, ejection rice shoot enter Tanaka, make rice shoot into wide-narrow row planting on rice-seedling throwing machine
Part.The utility model realizes the requirement of wide-and narrow-row rice transplanting using helical gear, eccentric bevel gear, non-conical bevel gear, passes through
The axle adjusted between central gear and idler gear helical angle or planet non-conical bevel gear shaft and middle eccentric bevel gear shaft is handed over
Angle, optimizes associated mechanisms parameter, can be designed that and meets different type of machines, the wide-and narrow-row ejection machine of different wide-and narrow-row agriculture requirements
Structure.
Utility model content
The purpose of this utility model be according to existing technical deficiency there is provided a kind of coaxial double-rod ejection type eccentric gear-
Non-conical bevel gear planetary system wide-and narrow-row rice seedling throwing mechanism.
In order to achieve the above object, the technical solution adopted in the utility model is：A kind of eccentric tooth of coaxial double-rod ejection type
Wheel-non-conical bevel gear planetary system wide-and narrow-row rice seedling throwing mechanism, including gear-box, the gear-box interior support have central gear,
Lower idler gear, it is lower in the middle of eccentric bevel gear, lower planet non-conical bevel gear, upper idler gear, it is upper in the middle of eccentric bevel gear, on
Middle bias bevel gear, the lower idler gear and it is lower in the middle of eccentric bevel gear be coaxially fixedly linked, the upper idler gear and
Eccentric bevel gear is coaxially fixedly linked in the middle of upper, and the central gear is meshed with lower idler gear and upper idler gear respectively,
The lower middle eccentric bevel gear and lower planet non-conical bevel gear are meshed, and the upper middle eccentric bevel gear and upper centre are inclined
Heart bevel gear is meshed；Also include upper transplanting arm and lower transplanting arm；The lower planet non-conical bevel gear and lower transplanting arm are coaxial
It is connected, the upper middle eccentric bevel gear is coaxially connected with upper transplanting arm；
The upper and lower transplants arm member structure is identical, including planting arm housings, slides and sets in the planting arm housings
Have to slide in hollow loop bar, the hollow loop bar and be provided with solid push rod, the end of the hollow loop bar and planting arm housings it
Between be provided with loop bar spring, push rod cumulative spring is provided between the solid push rod and planting arm housings；The hollow loop bar
It is provided with the first limiting plate, the second limiting plate and open-and-close mechanism；Catching groove, the open-and-close mechanism and button are provided with the solid push rod
Groove folding is connected；Double outline cam, shift fork and triggering pulling are hinged with the planting arm housings, the shift fork and triggering pulling are same
Axle, an end-rack of the shift fork is between the first limiting plate and the second limiting plate, the other end of the shift fork and the one of triggering pulling
End is abutted with double outline cam, and the other end of the triggering pulling and open-and-close mechanism coordinate transmission, the triggering pulling it is another
Triggering pulling extension spring is provided between end and planting arm housings；The outer end of the hollow loop bar is provided with seedling-taking mechanism；
The planting arm housings are coaxially fixedly linked with lower planet non-conical bevel gear, the double outline cam and gear
Case is fixedly connected.
Further, the central gear in described gear-box, upper and lower idler gear, it is upper and lower in the middle of eccentric bevel gear and
The relative position in the axle center of the upper and lower shaft gear planetary system of planet non-conical bevel gear five be in line shape arrangement or on centre tooth
Take turns the symmetrical triangular arrangement in axle center.
Further, axis where described upper and lower idler gear and folder of the axis where central gear in interlaced arrangement
Angle is θ or in parallel arrangement, axis where described upper and lower planet non-conical bevel gear and axis where upper and lower idler gear
Between crossed axis angle be to be not equal to 90 degree of included angle.
Further, the open-and-close mechanism includes Z-shaped button and Z-shaped button compression spring, and the Z-shaped button is hinged on hollow loop bar
On, Z-shaped button compression spring, the other end and the catching groove folding of the Z-shaped button are set between one end of the Z-shaped button and hollow loop bar
Connection.
Further, there is first annular groove and the second annular groove on the double outline cam.
Further, the center of circle angular region α of the first annular groove is 75-85 degree, the central angle of the second annular groove
Range beta is 345-350 degree, the angle between the axis of symmetry where the first annular groove and the second annular grooveFor
100-250 degree.
Further, an end-rack of the shift fork is between the first limiting plate and the second limiting plate；The shift fork it is another
End is abutted with the first annular groove of double outline cam, and one end of the triggering pulling and the second annular of double outline cam are recessed
Groove is abutted, and triggering pulling extension spring, the other end of triggering pulling and Z-shaped button are set between the other end and planting arm housings of triggering pulling
Coordinate transmission.
Further, the seedling-taking mechanism includes seedling pin, and the seedling is described for claiming to be hinged on the outer end of hollow loop bar
Seedling pin fastening spring is provided between seedling pin and hollow loop bar.
Further, the outer end of the solid push rod is fixedly connected with trapezoidal guide pad, and the trapezoidal guide pad is located at two
Between individual seedling pin.
The utility model has an advantageous effect in that：
1st, using eccentric bevel gear, non-conical bevel gear take into account eccentric gear, non-circular gear it is non-at the uniform velocity than be driven and bore
The space transmission of gear coordinates coaxial double-rod ejection type planting arm, can effectively meet different width as transmission mechanism
The agriculture requirement of narrow row rice transplanting, fills up the technological gap of rice-seedling throwing machine.
2nd, current most domestic rice-seedling throwing machine uses manpower Backpack type rice seedling throwing machine, and its principle is to utilize compressed air by paddy rice
Bowl is blown out, and using gravity landing, the mode with traditional manpower rice transplanting is exactly the same, although save labour turnover, but still not
The problems such as rice shoot floating, rice shoot skewness can be solved.The utility model does innovative design, pot seedling to the planting arm of rice seedling throwing mechanism
Clamping and ejection process realize in two steps, using biconvex contour line mechanism and the pushing sprout pole device that can be separated, change
The job order of traditional rice seedling throwing mechanism, increases the ejection link of accurate rice pot seedling, and the design can reach not seedling hurting, improve rice shoot
Survival rate, and certain altitude by rice shoot ejection bury, can effectively solve rice shoot floating, rice shoot skewness the problems such as, this
Rice shoot floating, skewness relevant issues, replace artificial rice transplanting with machinery when secondary design aims to solve the problem that the work of rice seedling throwing mechanism.
Brief description of the drawings
Fig. 1 is the structural representation of the rice seedling throwing mechanism of utility model embodiment；
Fig. 2-3 is the planetary system gear drive stereogram of the utility model embodiment；
Fig. 4 is planet non-conical bevel gear of the present utility model and middle eccentric Bevel Gear Transmission layout drawing, in figureAngle table
Show the crossed axis angle between planet non-conical bevel gear and middle eccentric bevel gear；
Fig. 5 is θ angles table in travelling gear figure when central gear of the present utility model has an alternate angle with idler gear, figure
Show the alternate angle between jackshaft and center；
Fig. 6 is the sectional view of planting arm in the utility model embodiment；
Fig. 7 is the top view of planting arm in the utility model embodiment；
Fig. 8 is the partial enlarged drawing in Fig. 6；
Fig. 9 is the axonometric drawing of double outline cam in the utility model embodiment；
Figure 10 be in the utility model embodiment triggering pulling and shift fork turn match somebody with somebody shaft side figure；
Figure 11 is the central angle schematic diagram of first annular groove in the utility model embodiment；
Figure 12 is the central angle schematic diagram of the second annular groove in the utility model embodiment；
Figure 13 is the position relationship schematic diagram of first annular groove and the second annular groove in the utility model embodiment；
The signal that Figure 14 embodies for hollow 5 motion processes of loop bar in the utility model embodiment on double outline cam
Figure；
In figure：1. loop bar spring, 2. push rod cumulative springs, 3. hollow loop bars, 4. solid push rods, 5. shift forks, 6.Z shapes buckle,
7.Z shape buttons compression spring, 8. triggering pullings, 9. triggering pulling extension springs, 10. double outline cams, 11. planting arm housings, 12.
Seedling pin, 13. seedling pin fastening springs, 14. trapezoidal guide pads, 15. seedling pin fixed mounts, 16. first limiting plates, 17. catching grooves, 18.
Two limiting plates, 101. first annular grooves, 102. second annular grooves, 19. center sprocket wheels, 20. central shafts, 21. castellated methods
Orchid, 22. times idler gears, 23. lower planet axles, 24. lower planet non-conical bevel gears, 25. times planting arms, 26. times are middle eccentric
Bevel gear, 27. times jackshafts, jackshaft on 28., idler gear on 29., on 30. in the middle of eccentric bevel gear, 31. upper planet axles,
32. upper planet non-conical bevel gear, planting arm on 33., 34. gear-boxes, 35. central gears, 36. chains, 37. drive sprockets,
38. drive sprocket axle, 39. chain-wheel boxs.
Embodiment
The utility model is described in further detail with reference to the accompanying drawings and examples.
As shown in figure 1, the utility model is installed on the drive disk assembly of rice-seedling throwing machine, the drive disk assembly includes transmission case
39, in transmission case 39, power is delivered to center sprocket wheel 19 by the drive sprocket 37 on drive sprocket axle 38 through chain 36
On, center sprocket wheel 19 is fixed on central shaft 20, and the two axial ends of central shaft 20 are respectively fixed with internal drive structure identical this reality
With new；
As Figure 2-3, the utility model includes gear-box 34, and the internal drive structure of gear-box 34 is：Central gear
35 empty sets are on the right side of central shaft 20, and affixed by jaw flange 21 and chain-wheel box 39, central gear 35 is respectively with being packed in
Lower idler gear 22 on lower jackshaft 27 is meshed with the upper idler gear 29 being packed on jackshaft 28, lower idler gear
22 drives are rotated with the coaxial mounted lower middle eccentric bevel gear 26 of lower idler gear 22, and upper idler gear 29 drives and upper centre
Coaxial mounted middle eccentric bevel gear 30 rotates gear 29, and lower middle eccentric bevel gear 26 is with being packed on lower planet axle 23
Lower planet non-conical bevel gear 24 be meshed, it is upper in the middle of eccentric bevel gear 30 and the upper planet that is packed on upper planet axle 31 it is non-
Circular cone bevel gear 32 is meshed, and one end of lower planet axle 23 and the stretching gear-box 34 of upper planet axle 31 has been respectively and fixedly connected with lower planting arm
25 and upper planting arm 33.
As illustrated in figures 4-5, the central gear 35 in described gear-box 34, upper and lower idler gear 22,29, upper and lower centre
Eccentric bevel gear 26,30 and upper and lower planet non-conical bevel gear 24, the relative position Cheng Zhi in the axle center of 32 5 shaft gear planetary systems
Linear array or in the triangular arrangement symmetrical on central gear axle center.Described upper and lower jackshaft 27,28 and central shaft 20
It is θ or in parallel arrangement in the angle of interlaced arrangement, between described upper and lower planet axis 23,31 and upper and lower jackshaft 27,28
Crossed axis angle according to corresponding wide-and narrow-row line-spacing agriculture requirement be to be not equal to 90 degree of included angle.
As a kind of embodiment, central gear 35, lower idler gear 22 in described transmission case 34, upper idler gear
29 are angular gear.
As a kind of embodiment, the central gear 35 in described transmission case 34 is angular gear, lower idler gear 22
It is straight-tooth gear with upper idler gear 29.
As a kind of embodiment, the central gear 35 in described transmission case 34 is straight-tooth gear, lower idler gear 22
Angular gear is with upper idler gear 29.
As a kind of embodiment, the central gear 35 in described transmission case 34 is straight-tooth gear, lower idler gear 22
Straight-tooth gear is with upper idler gear 29.
As a kind of embodiment, central gear 35, lower idler gear 22 and upper center tooth in described transmission case 34
Wheel 29 is elliptic gear, non-circular gear, eccentric gear or bias-non-circular gear, positive Knucle-gear.Described elliptic gear is single order
Elliptic gear, single order modified elliptical gear, high order elliptic gear or High-Order Deformed Elliptic Gears.
As shown in figs 6-8, the upper planting arm 33 is identical with the lower structure of planting arm 25, including planting arm housings 11, institute
To state slide in planting arm housings 11 to be provided with to slide in hollow loop bar 3, the hollow loop bar 3 and be provided with solid push rod 4, the sky
Be provided with loop bar spring 1 between the end of heart loop bar 3 and planting arm housings 11, the solid push rod 4 and with planting arm housings 11
Between be provided with push rod cumulative spring 2；The hollow loop bar 3 is provided with the first limiting plate 16, the second limiting plate 18 and opening-closing machine
Structure；Catching groove is provided with the solid push rod 4, the open-and-close mechanism is connected with the folding of catching groove 17；Cut with scissors in the planting arm housings 11
Double outline cam 10, shift fork 5 and triggering pulling 8 are connected to, shift fork 5 and triggering pulling 8 are coaxial, as shown in fig. 7, the one of the shift fork 5
End-rack is between the first limiting plate 16 and the second limiting plate 18, and the other end of the shift fork 5 is abutted with double outline cam 10, institute
State triggering pulling 8 and coordinate transmission with open-and-close mechanism, triggering pulling extension spring is provided between the triggering pulling 8 and planting arm housings 11
9；The outer end of the hollow loop bar 3 is provided with seedling-taking mechanism.
The planting arm housings 11 of the upper planting arm 33 with upper planet non-conical bevel gear 32 is coaxial is fixedly linked, that is, transplant
Arm housing 11 has identical support shaft with upper planet non-conical bevel gear 32, and planting arm housings 11 are bored with upper planet non-conical
Gear 32 is without relative displacement；The planting arm housings 11 of the lower planting arm 25 are coaxial fixed with lower planet non-conical bevel gear 24
It is connected, the double outline cam 10 is fixedly connected with gear-box 34.
As shown in figure 8, the open-and-close mechanism includes Z-shaped button 6 and Z-shaped button compression spring 7, the Z-shaped button 6 is hinged on hollow
On loop bar 3, Z-shaped button compression spring 7, the other end of the Z-shaped button 6 are set between one end of the Z-shaped button 6 and hollow loop bar 3
Be buckled in on catching groove 17.
As shown in Fig. 9, Figure 11-13, there is twice annular groove, i.e., first annular groove on the double outline cam 10
101 and second annular groove 102, the center of circle angular region α of first annular groove 101 is 75-85 degree, the second annular groove 102
Center of circle angular range β is 345-350 degree, the folder between the axis of symmetry where first annular 101 and second annular groove of groove 102
AngleFor 100-250 degree.Its feature of the contrast general cam of double outline cam 10 is to only need to a power source, and in phase
In same swing circle, multiple separate work can be completed, and accomplish not disturb mutually.
In the present embodiment, using two panels shift fork 5, triggering pulling 8 is clamped in the centre of two panels shift fork 5, and these three are hinged on same
In individual rotary shaft, as shown in Figure 10, an end-rack of the shift fork 5 is between the first limiting plate 16 and the second limiting plate 18, shift fork 5
One end under the driving of double outline cam 10, around its shift fork 5 pin joint rotate, because an end-rack of shift fork 5 is first
Loop bar spring is provided between the limiting plate 18 of limiting plate 16 and second and between the end of hollow loop bar 3 and planting arm housings 11
1 so that one end of shift fork 5 props up the first limiting plate 16 all the time；When hollow loop bar 3 is displaced outwardly, the second limiting plate 18 is then limited
Make the axial stroke of hollow loop bar 3；The other end of the shift fork 5 is abutted with the first annular groove 101 of double outline cam 10,
One end of the triggering pulling 8 is abutted with the second annular groove 102 of double outline cam 10, the other end and Z of the triggering pulling 8
Shape button 6 coordinates transmission, sets triggering pulling to stretch for stirring Z-shaped button 6, between the other end and planting arm housings 11 of triggering pulling 8
Spring 9.
Coaxial double-rod ejection mechanism is one of principal organ of the design, and it is set with hollow 3 sets of solid push rods 4 of loop bar
Meter, makes double-rod always work in same axis.The hinge of Z-type button 6 is on hollow loop bar 3 in Fig. 8, and Z-type button 6 can only revolve around hinged place
Transhipment is dynamic or follows axis of the hollow loop bar 3 along hollow loop bar 3 to be axially moved, and has catching groove 17 in solid push rod 4, by Z-shaped
Button 6, which clasps solid push rod 4 (as shown in Figure 8), can be such that double-rod moves together, coordinate double outline cam 10 by such a mechanism
Two kinds of feature actions of seedling taking and ejection are completed on the same axis.
As shown in fig. 7, the seedling-taking mechanism includes seedling pin fixed mount 15 and seedling pin 12, the seedling pin fixed mount 15 is fixed on
The outer end of hollow loop bar 3, the seedling pin 12 is symmetrically hinged on seedling pin fixed mount 15, the seedling pin 12 and seedling pin fixed mount 15 it
Between be provided with seedling pin fastening spring 13.The outer end of the solid push rod 4 is fixedly connected with trapezoidal guide pad 14, the trapezoidal guiding
Block 14 is located between two seedling pins 12.Seedling-taking mechanism belongs to the end effector mechanism of this planting arm, trapezoidal guide pad 14 therein
It is rigidly connected with the outer end of solid push rod 4, coordinates real with the inner side spigot surface of seedling pin 12 while axial movement with solid push rod 4
The folding of existing seedling pin.Made comparisons with the seedling pin of existing rice transplanter, because it uses seedling pin fastening spring 13 to provide the power clamped, institute
Will not damage seedling pin when clamping hard objects, be difficult to injure rice shoot.
Operation principle of the present utility model is as follows：
Central gear 35 is affixed by jaw flange 21 and chain-wheel box 39, so, central gear 35 is static not to be turned, center
Axle 20 is rotated, and drives the gear-box 34 affixed with central shaft 20 to rotate, engage 29 with lower idler gear by central gear 35, under
Middle bias bevel gear 30 engages with lower planet non-conical bevel gear 24, the rotation of variable speed is realized, because double outline is convex
Wheel 10 is fixedly connected with gear-box 34, and the planting arm housings 11 of lower planting arm 25 and lower planet non-conical bevel gear 24 are coaxial fixed
It is connected, is relatively rotated so double outline cam 10 has with planting arm housings 11.
Seedling taking action is realized by seedling-taking mechanism, as shown in fig. 6, hollow loop bar 3 rigidly connects with the whole fixed mount of seedling pin 12
Connecing realization, both move simultaneously；
As shown in figure 14, hollow loop bar 3 (including Z-shaped buckles the He of compression spring 7 by double outline cam 10, shift fork 5 and spring
Triggering pulling extension spring 9) control, whole motion process include it is near stop, rise, backhaul, it is remote stop, 5 motion processes of ejection, in detail
It is as follows：
(1) it is near to stop：Seedling pin 12 is in initial state, absolute movement and the complete phase of transport motion in the section seedling pin 12
Together, now solid push rod 4 and trapezoidal guide pad 14 are in ejection state, the other end of Z-shaped button 6 be not buckled in on catching groove 17,
Second limiting plate 18 props up planting arm housings 11, makes hollow loop bar 3 without axial movement.
(2) rise：The seedling taking process of seedling pin 12 is realized, the other end of shift fork 5 slips into the first ring of double outline cam 10
In connected in star 101, hollow loop bar 3, the and of seedling pin fixed mount 15 are caused by the first annular groove 101 on double outline cam 10
The axially outward motion of seedling pin 12, now solid push rod 4 and trapezoidal guide pad 14 are still static, then seedling pin 12 is relatively trapezoidal
Guide pad 14 is travelled forward, and the inner side of seedling pin 12 is in contact with trapezoidal guide pad 14 so that seedling pin 12 is pressed in seedling pin fastening spring 13
Clamp bowl under power and the collective effect of trapezoidal guide pad 14, the other end of Z-shaped button 6 be buckled in on catching groove 17.
(3) backhaul：The other end of shift fork 5 is completed in the first annular groove 101 of double outline cam 10 after sliding, double
Profile line cam 10 is rotated further, and the other end of shift fork 5 starts sliding out first annular groove 101 so that shift fork 5 promotes first to limit
Position plate 16, so as to compress loop bar spring 1, Z-shaped button 6 has clasped on the catching groove 17 of solid push rod 4 and has followed sky in the process
The direction that heart loop bar 3 compresses to loop bar spring 1 together is moved, while bowl follows hollow loop bar 3 to move together.
(4) it is remote to stop：Generally in Fig. 6 states, seedling pin 12 grips bowl, loop bar spring 1, push rod cumulative spring 2 above
All in compressive state；The distance of the cusp of period seedling pin 12 to the planetary gear pivot of rice seedling throwing mechanism planet circular system is kept not
Become.
(5) launch：The motion of one end of the second annular groove 102 control triggering pulling 8 of double outline cam 10, when button is pulled
When one end of machine 8 skids off the second annular groove 102, the other end of triggering pulling 8 stirs one end of Z-type button 6, and Z-type button 6 utilizes lever
Principle so that the other end of Z-shaped button 6 disengages the connection with catching groove 17, the push rod cumulative spring 2 now compressed discharges elastic potential
Can, make solid push rod drive guide pad 14 quickly to move, the bowl that seedling pin 12 is clamped quickly is ejected, and injects soil.Shape afterwards
State is kept, and is that seedling taking is prepared next time.
Claims (9)
1. a kind of coaxial double-rod ejection type eccentric gear-non-conical bevel gear planetary system wide-and narrow-row rice seedling throwing mechanism, including gear-box,
The gear-box interior support have central gear, lower idler gear, it is lower in the middle of eccentric bevel gear, lower planet non-conical bevel gear,
Upper idler gear, upper middle eccentric bevel gear, upper middle eccentric bevel gear, the lower idler gear and lower middle bias bevel gear
Coaxially be fixedly linked, the upper idler gear and it is upper in the middle of eccentric bevel gear be coaxially fixedly linked, the central gear respectively with
Lower idler gear and upper idler gear are meshed, and the lower middle eccentric bevel gear and lower planet non-conical bevel gear are meshed,
The upper middle eccentric bevel gear and upper middle eccentric bevel gear are meshed；Also include upper transplanting arm and lower transplanting arm；Under described
Planet non-conical bevel gear is coaxially connected with lower transplanting arm, and the upper middle eccentric bevel gear is coaxially connected with upper transplanting arm；
Characterized in that, the upper and lower transplants arm member structure is identical, including planting arm housings, in the planting arm housings
Slip, which is provided with to slide in hollow loop bar, the hollow loop bar, is provided with solid push rod, the end of the hollow loop bar and plant
Loop bar spring is provided between arm housing, push rod cumulative spring is provided between the solid push rod and planting arm housings；It is described
Hollow loop bar is provided with the first limiting plate, the second limiting plate and open-and-close mechanism；Catching groove, the folding are provided with the solid push rod
Mechanism is connected with catching groove folding；Be hinged with double outline cam, shift fork and triggering pulling in the planting arm housings, the shift fork and
Triggering pulling is coaxial, and an end-rack of the shift fork is between the first limiting plate and the second limiting plate, the other end and button of the shift fork
One end of trigger is abutted with double outline cam, and the other end of the triggering pulling coordinates with open-and-close mechanism to be driven, and the button is pulled
Triggering pulling extension spring is provided between the other end and planting arm housings of machine；The outer end of the hollow loop bar is provided with seedling taking
Mechanism；
The planting arm housings are coaxially fixedly linked with lower planet non-conical bevel gear, and the double outline cam is consolidated with gear-box
Fixed connection.
2. coaxial double-rod ejection type eccentric gear according to claim 1-non-conical bevel gear planetary system wide-and narrow-row rice transplanting
Mechanism, it is characterised in that：Central gear in described gear-box, upper and lower idler gear, it is upper and lower in the middle of eccentric bevel gear and
The relative position in the axle center of the upper and lower shaft gear planetary system of planet non-conical bevel gear five be in line shape arrangement or on centre tooth
Take turns the symmetrical triangular arrangement in axle center.
3. coaxial double-rod ejection type eccentric gear according to claim 1-non-conical bevel gear planetary system wide-and narrow-row rice transplanting
Mechanism, it is characterised in that：Axis where described upper and lower idler gear and the angle that axis where central gear is in interlaced arrangement
For θ or in parallel arrangement, axis where described upper and lower planet non-conical bevel gear and axis where upper and lower idler gear it
Between crossed axis angle be to be not equal to 90 degree of included angle.
4. coaxial double-rod ejection type eccentric gear according to claim 1-non-conical bevel gear planetary system wide-and narrow-row rice transplanting
Mechanism, it is characterised in that the open-and-close mechanism includes Z-shaped button and Z-shaped button compression spring, the Z-shaped button is hinged on hollow loop bar
On, Z-shaped button compression spring, the other end and the catching groove folding of the Z-shaped button are set between one end of the Z-shaped button and hollow loop bar
Connection.
5. coaxial double-rod ejection type eccentric gear according to claim 4-non-conical bevel gear planetary system wide-and narrow-row rice transplanting
Mechanism, it is characterised in that there is first annular groove and the second annular groove on the double outline cam.
6. coaxial double-rod ejection type eccentric gear according to claim 5-non-conical bevel gear planetary system wide-and narrow-row rice transplanting
Mechanism, it is characterised in that the center of circle angular region α of the first annular groove is 75-85 degree, the central angle model of the second annular groove
β is enclosed for 345-350 degree, the angle between the axis of symmetry where the first annular groove and the second annular grooveFor 100-
250 degree.
7. coaxial double-rod ejection type eccentric gear-non-conical bevel gear planetary system wide-and narrow-row according to claim 5 or 6 is thrown
Rice seedling distribution mechanism a, it is characterised in that end-rack of the shift fork is between the first limiting plate and the second limiting plate；The shift fork it is another
End is abutted with the first annular groove of double outline cam, and one end of the triggering pulling and the second annular of double outline cam are recessed
Groove is abutted, and triggering pulling extension spring, the other end of triggering pulling and Z-shaped button are set between the other end and planting arm housings of triggering pulling
Coordinate transmission.
8. coaxial double-rod ejection type eccentric gear according to claim 7-non-conical bevel gear planetary system wide-and narrow-row rice transplanting
Mechanism, it is characterised in that the seedling-taking mechanism includes seedling pin, the seedling is described for claiming to be hinged on the outer end of hollow loop bar
Seedling pin fastening spring is provided between seedling pin and hollow loop bar.
9. coaxial double-rod ejection type eccentric gear according to claim 8-non-conical bevel gear planetary system wide-and narrow-row rice transplanting
Mechanism, it is characterised in that the outer end of the solid push rod is fixedly connected with trapezoidal guide pad, the trapezoidal guide pad is located at two
Between seedling pin.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621278376.XU CN206314194U (en) | 2016-11-26 | 2016-11-26 | A kind of coaxial double-rod ejection type eccentric gear non-conical bevel gear planetary system wide-and narrow-row rice seedling throwing mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621278376.XU CN206314194U (en) | 2016-11-26 | 2016-11-26 | A kind of coaxial double-rod ejection type eccentric gear non-conical bevel gear planetary system wide-and narrow-row rice seedling throwing mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206314194U true CN206314194U (en) | 2017-07-11 |
Family
ID=59264576
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621278376.XU Withdrawn - After Issue CN206314194U (en) | 2016-11-26 | 2016-11-26 | A kind of coaxial double-rod ejection type eccentric gear non-conical bevel gear planetary system wide-and narrow-row rice seedling throwing mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206314194U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106489386A (en) * | 2016-11-26 | 2017-03-15 | 浙江农林大学 | Coaxial double-rod ejection type eccentric gear non-conical bevel gear planetary system wide-and narrow-row rice seedling throwing mechanism |
| CN108142047A (en) * | 2018-01-30 | 2018-06-12 | 中国农业大学 | Tilting telescopic precision seeder |
-
2016
- 2016-11-26 CN CN201621278376.XU patent/CN206314194U/en not_active Withdrawn - After Issue
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106489386A (en) * | 2016-11-26 | 2017-03-15 | 浙江农林大学 | Coaxial double-rod ejection type eccentric gear non-conical bevel gear planetary system wide-and narrow-row rice seedling throwing mechanism |
| CN106489386B (en) * | 2016-11-26 | 2019-03-08 | 浙江农林大学 | Coaxial double rod ejection type eccentric gear-non-conical bevel gear planetary system wide-and narrow-row rice seedling throwing mechanism |
| CN108142047A (en) * | 2018-01-30 | 2018-06-12 | 中国农业大学 | Tilting telescopic precision seeder |
| CN108142047B (en) * | 2018-01-30 | 2024-04-26 | 中国农业大学 | Inclined telescopic precision seed sowing device |
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