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Test bed for pneumatic rape seed sowing device

A technology of seed metering device and test bench, which is applied in the direction of planter parts, etc., can solve the problems of inability to discharge consistency of multiple seed metering devices, detection of displacement stability indicators, inability to test the performance of seed metering devices, and complex structure. , to achieve the effect of simple structure, convenient operation and high measurement accuracy

Inactive Publication Date: 2013-02-13
HUAZHONG AGRI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The shortcoming of this test bench is that it cannot detect the discharge consistency and discharge stability indicators of multiple seed meters; it cannot test the performance of the seed meters in the entire pneumatic system
In addition, its structure is more complicated, huge, and the cost is high.

Method used

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  • Test bed for pneumatic rape seed sowing device
  • Test bed for pneumatic rape seed sowing device
  • Test bed for pneumatic rape seed sowing device

Examples

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Embodiment Construction

[0019] specific implementation plan

[0020] The present invention is further described in conjunction with the accompanying drawings.

[0021] Depend on figure 1 As shown, the present embodiment provides a test bench for a pneumatic rapeseed metering device, which includes thermal gas mass flow meter supports 1a and 1b, a total negative pressure air pipe 2, a total positive pressure air pipe 12, a positive Pressure branch air pipe 10, negative pressure branch air pipe 11, thermal gas mass flowmeters 3a and 3b, test bench support 4, universal vertical support 5, universal horizontal long support 8, universal horizontal short support 9, combined positive and negative air pressure Rapeseed precision metering device 6 (Patent No. 200620172781.3), positive and negative air pressure tube combination 7, transition shaft combination 14, seed metering device power input motor 13, negative pressure fan power input motor 21, positive pressure fan power input motor 23, Power distributi...

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PUM

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Abstract

The invention belongs to the agricultural machine performance test equipment, and concretely relates to a test bed for a pneumatic rape seed sowing device. The test bed is characterized in that the test bed comprises test bed supports, thermal gas mass flow-meters, a positive pressure fan, a negative pressure fan, a positive and negative pressure tube precision seed sowing device, a positive and negative pressure tube assembly, a transition shaft assembly, a power input motor, a regulation and control frequency converter and the like. The test bed can be used for the simultaneous test researches on the sowing amount consistency and stability of a plurality of the pneumatic rape seed sowing devices, and also can be used for the test researches on the change rules of the sow amount consistency and stability of the seed sowing device under the synergistic action of different positive pressure gas flows, negative pressure gas flows and the rotation speeds of the seed sowing device. The test bed has the advantages of simple structure, convenient use operation, high measure precision and wide application range, and can also be used for the test researches on other pneumatic seed sowing devices.

Description

technical field [0001] The invention belongs to agricultural machinery performance test equipment, in particular to a test bench for a pneumatic rapeseed metering device. Background technique [0002] With the continuous popularization of the pneumatic rape seeder, the core component of the pneumatic rapeseed metering device and its pneumatic system urgently need a special test bench for experimental research. The current computer vision seed meter test bench is mainly composed of fuel injection device, seed meter drive motor, seed meter installation frame, seed bed conveyor belt, air source fan, computer vision system and control system, etc. The shaft speed, the speed of the air source fan, and the forward speed of the seed bed belt are adjusted to realize the seeding performance detection of a single pneumatic seed metering device under different working parameters. The disadvantage of this test bench is that it cannot realize the detection of the discharge consistency a...

Claims

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Application Information

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IPC IPC(8): A01C7/20
Inventor 廖庆喜杨松黄海东丁幼春廖宜涛
Owner HUAZHONG AGRI UNIV
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