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Nine-axis non-conical gear planetary gear system transplanting mechanism for pot seedlings in wide and narrow rows

A technology of non-conical gears and planetary gear trains, which is applied in the direction of transplanting machinery, gear transmission devices, belts/chains/gears, etc., and can solve inaccurate seedling picking positions, irregular seedling positions, and large lateral offsets, etc. problems, to achieve the effect of increasing the rate of seedling picking, small lateral offset, and high degree of mechanization

Active Publication Date: 2016-08-17
ZHEJIANG SCI-TECH UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Prior to this, a two-stage non-conical gear-driven transplanting mechanism for rice pot seedlings in wide and narrow rows has been realized. However, in actual operation, due to the excessive lateral offset of the seedling needle at the seedling picking section, the seedling picking position is inaccurate. , especially in the actual operation, the position of the seedlings is irregular, and the rate of picking seedlings is very low

Method used

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  • Nine-axis non-conical gear planetary gear system transplanting mechanism for pot seedlings in wide and narrow rows
  • Nine-axis non-conical gear planetary gear system transplanting mechanism for pot seedlings in wide and narrow rows
  • Nine-axis non-conical gear planetary gear system transplanting mechanism for pot seedlings in wide and narrow rows

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0040] Such as figure 1 and 2 As shown, the nine-axis non-conical gear planetary gear system pot seedling wide and narrow line transplanting mechanism includes transmission case 33, driving sprocket wheel 31, chain 30, center sprocket wheel 1, central shaft 2, planetary gear train, upper planting arm 25 and The lower planting arm 9; the central shaft 2 and the driving sprocket shaft 32 are all supported on the transmission box 33 by bearings, and the driving sprocket 31 fixed on the driving sprocket shaft 32 and the central sprocket 1 fixed on the central shaft 2 pass through the chain 30 Connection; two planetary gear trains are symmetrically arranged at both ends of the central shaft 2, and the two ends of the central shaft 2 protruding from the transmission box 33 are respectively fixed with a gear box 28 of a planetary gear train.

[0041] Such as Figure 6 and 7 As shown, the planetary gear train includes a gearbox 28, a central non-conical gear 29, an upper first inte...

Embodiment 2

[0051] Such as image 3 As shown, the nine-axis non-conical gear planetary gear system pot seedling wide and narrow line transplanting mechanism includes transmission case 33, driving sprocket wheel 31, chain 30, center sprocket wheel 1, central shaft 2, planetary gear train, upper planting arm 25 and The lower planting arm 9; the central shaft 2 and the driving sprocket shaft 32 are all supported on the transmission box 33 by bearings, and the driving sprocket 31 fixed on the driving sprocket shaft 32 and the central sprocket 1 fixed on the central shaft 2 pass through the chain 30 Connection; two planetary gear trains are symmetrically arranged at both ends of the central shaft 2, and the two ends of the central shaft 2 protruding from the transmission box 33 are respectively fixed with a gear box 28 of a planetary gear train.

[0052] Such as Figure 8 and 9As shown, the planetary gear train includes a gearbox 28, a central non-conical gear 29, an upper first intermediate...

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Abstract

The invention discloses a wide / narrow row potted-seedling transplanting mechanism with nine-axis noncircular bevel gear planetary gear trains. A seedling needle of the existing wide / narrow row rice potted-seedling transplanting mechanism is large in lateral offset, inaccurate in seedling taking position and very low in seedling taking rate during seedling taking. According to the wide / narrow row potted-seedling transplanting mechanism, two planetary gear trains are symmetrically arranged at two ends of a central shaft and can adopt two mechanical forms, wherein the first mechanical form is four-stage transmission of fifteen noncircular bevel gears, and the second mechanical form is four-stage transmission of nine-axis noncircular bevel gears. By using the two mechanical forms, a rice transplanting point can laterally offset relative to a seedling taking point after a seedling is taken by a seedling taking claw, so that the wide / narrow row potted-seedling planting is realized. The four-stage gear transmission is beneficial for the seedling taking claw to form an 8-shaped spatial motion track; and compared with two-stage gear transmission, the four-stage gear transmission has the advantages that the lateral offset of the track during seedling taking is small, and the seedling taking claw is in a straight seedling taking posture, so that the seedling taking success rate is ensured. Meanwhile, the four-stage transmission can keep transmission ratio curves of all levels of gears more flat and is beneficial to generation of the noncircular bevel gears meeting the requirements of convexity and pressure angles.

Description

technical field [0001] The invention relates to agricultural machinery, in particular to a nine-axis non-conical gear planetary gear system transplanting mechanism for pot seedlings in wide and narrow rows suitable for high-speed pot seedling wide and narrow row transplanting machines. Background technique [0002] At present, there are various types of rice transplanters, but whether it is transplanting in wide and narrow rows or transplanting in equal rows, the seedlings taken by the transplanting mechanism are all blanket-shaped seedlings, which are easy to damage the roots. The seedlings taken by the pot seedling wide and narrow row transplanting mechanism are pot seedlings, and there is no root packing phenomenon between the pots and pots, so there is no problem of root damage during the seedling picking process. Compared with blanket seedlings, transplanting has a shorter This is of great significance for increasing rice yield. [0003] Wide and narrow row planting me...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A01C11/02F16H1/30
Inventor 孙良毛世民刘晓龙张国凤
Owner ZHEJIANG SCI-TECH UNIV
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