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Coaxial double-rod ejection type eccentric gear-non-conical bevel gear planetary system wide and narrow row seedling throwing mechanism

An eccentric gear and non-conical technology, which is applied in the field of coaxial double-rod ejection type eccentric gear-non-conical bevel gear planetary system wide and narrow row seedling throwing mechanism, can solve the problems of high processing accuracy, low work efficiency and complex structure. To achieve the effect of increasing the ejection link, saving labor costs and improving the survival rate

Active Publication Date: 2019-03-08
ZHEJIANG FORESTRY UNIVERSITY
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] In the early 1980s, Japan had produced orderly rice seedling throwing machinery and entered the market; due to many reasons such as its complex structure, high processing precision requirements, high cost, and low work efficiency, it was not popularized in a large area, accounting for only 20% of the rice planting area. 0.5% or less

Method used

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  • Coaxial double-rod ejection type eccentric gear-non-conical bevel gear planetary system wide and narrow row seedling throwing mechanism
  • Coaxial double-rod ejection type eccentric gear-non-conical bevel gear planetary system wide and narrow row seedling throwing mechanism
  • Coaxial double-rod ejection type eccentric gear-non-conical bevel gear planetary system wide and narrow row seedling throwing mechanism

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Embodiment Construction

[0035] The present invention will be further described below in conjunction with drawings and embodiments.

[0036] Such as figure 1 As shown, the present invention is installed on the transmission parts of rice seedling throwing machine, and described transmission parts comprises transmission case 39, and in transmission case 39, power is delivered to by chain 36 through chain 36 by drive sprocket 37 that is contained on the drive sprocket shaft 38. On the central sprocket 19, the central sprocket 19 is fixedly connected to the central shaft 20, and the two shaft ends of the central shaft 20 are respectively fixed with the present invention having the same internal transmission structure;

[0037] Such as Figure 2-3As shown, the present invention includes a gear box 34, and the internal transmission structure of the gear box 34 is as follows: the central gear 35 is vacantly sleeved on the right side of the central shaft 20, and is affixed to the sprocket box 39 through the ...

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Abstract

The invention discloses a coaxial dual-rod ejection eccentric gear-noncircular bevel gear planetary wide-and-narrow-row-alternate seedling-throwing mechanism, comprising a gear case, wherein a sun gear, lower and upper intermediate gears, lower and upper intermediate eccentric bevel gears, and lower and upper planetary noncircular bevel gears are supported in the gear case; the lower and upper planetary noncircular bevel gears are coaxially connected with lower and upper transplanting arms; hollow sleeve rods are slidably arranged in the shells of the transplanting arms, and solid push rods are slidably arranged in the hollow sleeve rods; double-contour cams, shift forks and triggers are hinged in the shells of the transplanting arms; and seedling fetching mechanisms are arranged at the outer ends of the hollow sleeve rods. According to the invention, the eccentric bevel gears and the noncircular bevel gears, which can realize both non-uniform speed ratio transmission of eccentric gears and noncircular gears and spatial transmission of bevel gears, are used as transmission mechanisms and cooperated with the coaxial dual-rod ejection transplanting arms, so different agricultural requirements on wide-and-narrow-row-alternate seedling throwing can be effectively met, and technological gaps in seedling throwing machines can be filled in.

Description

technical field [0001] The invention relates to the field of agricultural machinery, in particular to a coaxial double-rod ejection type eccentric gear-non-conical bevel gear planetary system wide and narrow row seedling throwing mechanism. technical background [0002] At present, there are three main methods of rice mechanical planting: direct seeding, transplanting and throwing. Among them, direct seeding is a disorderly planting method with a long growth period. Transplanting has a slow seedling period of 5 to 7 days. Both methods will prolong the growth period; however, there is no slow seedling period for throwing seedlings. -15% yield. In addition, seedling throwing has the advantages of fast transplanting speed and no damage to the roots, and is recommended by rice planting experts as the planting technique with the highest yield increase rate. However, disorderly seedling throwing operation is not conducive to later field management, and affects rice ventilation, ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A01C11/00
CPCA01C11/003A01C11/006
Inventor 钱孟波秦浙赵匀何俊杰俞高红
Owner ZHEJIANG FORESTRY UNIVERSITY
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