Negative pressure fan transmission device

A technology of transmission device and negative pressure fan, which is applied in the direction of fertilization device, mechanical equipment, single grain seeder, etc., to achieve the effect of stable performance, complete safety devices and reduced slip coefficient

Inactive Publication Date: 2012-06-13
陈恒
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the connection transmission of this structure, there is a defect that when the negative pressure fan is required to work, the four-wheel tractor and the fan must be started at the same time. Due to the increase in the load of the starting fan, it is relatively difficult to start the four-wheel tractor, especially when the crank is used. It is more difficult when four-wheel tractor

Method used

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Embodiment Construction

[0011] like figure 1 — 3 shows that the present invention mainly includes a fan and a fan and transmission device installed on the fan. The transmission device is the first leather wheel 9 and the fan belt wheel that can be connected with the active belt wheel (145mm) on the tractor output shaft (145mm).10 The second leather wheel of the connection 1 is connected through the shaft 3 coaxial of the axis 3 and locks it with a nut 4. On one side of the middle part of the second leather wheel 1, there is a ring -shaped concave.The two -leather wheel 1 is in a clutch state within a certain speed; of which, the diameter of the first leather wheel is 96mm, the diameter of the second leather wheel 17 is 206mm, and the diameter of the fan leather pulley 10 is 90mm; the second leather wheel 1 is connected with the triangular belt 10 triangular belt;The centrifugal clutch includes: fixed board 8 with the first leather wheel fixation or integration, the shape of the fixed board 8 is matched w...

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Abstract

The invention relates to a negative pressure fan transmission device which is an auxiliary device for an agricultural seeder, and concretely relates to a transmission device in a (tractor) front negative pressure fan on a pneumatic precision seeder, wherein the transmission device is provided with a clutch mechanism. The fan transmission device which mainly comprises a fan support and a fan and the transmission device arranged on the fan support is characterized in that: the transmission device comprises a first belt pulley (9) connected with the driving belt pulley on a tractor output shaft and a second belt pulley (1) connected with a fan belt pulley (10); the first belt pulley (9) has a coaxial connection with the second belt pulley (1) through a bearing (2) and a shaft (3); one side of the intermediate part of the second belt pulley (1) has a ring-shaped concave; and a centrifugal type clutch is arranged in the concave to make the second belt pulley (1) be in a clutch state withina certain rotating speed. The fan transmission device of the invention has advantages of reasonable transmission structure, stable performance, simple structure, convenient operation, low cost, and the like.

Description

Technical field [0001] The present invention involves a negative pressure fan transmission device, auxiliary device for special agricultural seeding machines. Specifically, it is a (tractor) front negative pressure fan on an air -suction precision sowing machineDevice. technical background [0002] At present, a large number of agricultural four -wheel tractor used by the air -suction seeding machine as the power, and the installation and transmission method of the air -suction negative pressure fans and the agricultural four -wheel tractor is the front form, that is, the negative pressure fans, that isThe rack is installed on the bumper of the front part of the four -wheel tractor. The side output wheel of the tractor is connected to the smaller belt wheel with the same axis of the fan blade wheel through a triangular belt. The transmission ratio of the two is about 1: 4.In the connection transmission of this structure, the defect is that when the negative pressure fan is requi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01C19/00A01C7/04
CPCF16D43/18F16D2043/145
Inventor 陈恒
Owner 陈恒
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