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Balance beam impact combine harvester grain flow measuring device and grain flow measuring method

A combine harvester and grain flow technology, which is applied to the harvester, detects fluid flow by measuring pressure difference, and volume/mass flow generated by mechanical effects, etc. It can solve the problem of large error in impact grain flow measurement and eliminate vibration Interference, the effect of improving measurement accuracy

Inactive Publication Date: 2015-08-26
JIANGSU UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The impact grain flow sensor is generally installed at the outlet of the grain elevator, and mainly adopts a single-plate or double-plate cantilever beam structure. The impact force of the grain is sensed by the unidirectional force sensitivity of the cantilever beam sensor element, and the flow rate is calculated according to the magnitude of the impact force. However, due to the interference of factors such as the vibration of the combine harvester, the difference in terrain, the grain flow, the impact speed and angle, the existing impact grain flow measurement error is relatively large

Method used

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  • Balance beam impact combine harvester grain flow measuring device and grain flow measuring method
  • Balance beam impact combine harvester grain flow measuring device and grain flow measuring method
  • Balance beam impact combine harvester grain flow measuring device and grain flow measuring method

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Effect test

Embodiment 1

[0028] Please refer to the structure of the balance beam impact combine harvester grain flow measuring device figure 1 , 2 , consisting of an arc-shaped impact plate 1, a first horizontal tension-compression sensor 2, a bracket 3, a support shaft 4, a vertical tension-compression sensor 6, a second horizontal tension-compression sensor 7, a balance weight 8, and an adjustment bolt 9, and the horizontally arranged bracket 3. It can rotate around the support shaft 4. One end of the bracket 3 is connected to the arc-shaped impact plate 1 through the first horizontal tension-compression sensor 2, and the other end is sequentially provided with a second horizontal tension-compression sensor 7, a balance weight 8, and an adjustment bolt 9; The upper or lower surface of the bracket 3 near the end of the second horizontal tension-compression sensor 7 is connected to the vertical tension-compression sensor 6 . A through hole is arranged in the middle part of the support 3, and an axl...

Embodiment 2

[0031] The measuring principle of the grain flow measuring device can be found in image 3 .

[0032] The grain flow measurement method using the above-mentioned balance beam impact combine harvester grain flow measurement device includes the following steps:

[0033] Step 1. Establish a grain flow measurement model

[0034] Step 1.1. Lead the grain with a known flow rate to the direction of the arc-shaped impact plate 1, record the vertical component force of the grain impact measured by the vertical tension and pressure sensor 6, and the first horizontal component force measured by the first horizontal tension and pressure sensor 2 , the second horizontal force component measured by the second horizontal tension-compression sensor 7;

[0035] Step 1.2, performing a differential operation on the first horizontal component force and the second horizontal component force to obtain the horizontal component force of the grain impacting the arc-shaped impact plate 1;

[0036] S...

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Abstract

The invention discloses a balance-beam impact combine-harvester grain flow measuring device and a grain flow measuring method, belongs to the technical field of combine-harvester grain flow measuring, and is mainly applied to real-time measuring of grain flows. The balance-beam impact combine-harvester grain flow measuring device is composed of an arc impact plate, two level pressure sensors, one vertical pressure sensor, a support, a balance weight, a support shaft and the like. According to the arrangement, vibration interference generated during operation of a combine harvester can be effectively eliminated, errors caused by the grain flows, impact angles and fluctuation of speed are reduced, and measuring accuracy is improved.

Description

technical field [0001] The invention belongs to the technical field of grain flow detection of a combine harvester, and in particular relates to a grain flow measurement device and method for a balance beam impact combine harvester. Background technique [0002] Grain flow measurement is an important part of combine harvester intelligence and precision agricultural technology. It obtains the difference in crop yield in the field by obtaining the grain flow of the combine harvester in real time during field operations, which can directly reflect farmland information (such as soil properties, fertilizer efficiency utilization, water, insect pests, etc.) on grain yield, establish spatial distribution information of crop yield, and provide decision-making basis for determining variable operations such as chemical fertilizers and pesticides, so as to achieve the goals of saving costs, increasing yields, and reducing environmental pollution. At present, grain flow sensors mainly i...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A01D41/127G01F1/34G01F1/50
Inventor 赵湛李耀明陈义粱振伟
Owner JIANGSU UNIV
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