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國家“智能農(nóng)機(jī)裝備”重點專項“扭腰輪式拖拉機(jī)整機(jī)試驗”完成

2020-12-29 09:23:36 來源：中國一拖 閱讀量：17271 評論

導(dǎo)讀：近日，通過系列驗證，中國一拖承擔(dān)的國家重點研發(fā)計劃“智能農(nóng)機(jī)裝備”重點專項“扭腰輪式拖拉機(jī)整機(jī)試驗”成功達(dá)到試驗任務(wù)目標(biāo)，工作時可靠性高，標(biāo)志著中國一拖圓滿完成了該任務(wù)。

　　【農(nóng)機(jī)網(wǎng) 明星企業(yè)】近日，通過系列驗證，中國一拖承擔(dān)的國家重點研發(fā)計劃“智能農(nóng)機(jī)裝備”重點專項“扭腰輪式拖拉機(jī)整機(jī)試驗”成功達(dá)到試驗任務(wù)目標(biāo)，工作時可靠性高，標(biāo)志著中國一拖圓滿完成了該任務(wù)。
 
　　扭腰輪式拖拉機(jī)采用前后分段扭腰式連接傳動系統(tǒng)，傳動系統(tǒng)中間設(shè)計有扭腰擺動姿態(tài)調(diào)整裝置連接前后變速箱，實現(xiàn)對地面的適應(yīng)，特別適用于丘陵山地作業(yè)。而中國一拖此次承接的“扭腰輪式拖拉機(jī)整機(jī)試驗”任務(wù)主要包括對扭腰輪式拖拉機(jī)常用工況車速下單輪打滑、同側(cè)雙輪打滑和異側(cè)雙輪打滑時各車輪扭矩進(jìn)行測試。
 
　　要完成扭腰輪式拖拉機(jī)的各種車輪滑轉(zhuǎn)狀態(tài)下的車輪扭矩測試試驗需要滿足兩個基本條件：一是有車輪扭矩信號采集、傳輸、分析處理系統(tǒng)；二是有軸距可以調(diào)整的四驅(qū)轉(zhuǎn)鼓試驗臺。目前國內(nèi)既沒有通用的車輪扭矩信號采集、傳輸、分析處理系統(tǒng)，也沒有合適的軸距的四驅(qū)轉(zhuǎn)鼓試驗臺。
 
　　經(jīng)過充分的市場調(diào)研，反復(fù)分析對比，中國一拖產(chǎn)品試驗部放棄了高價購買外國試驗傳感器和定制轉(zhuǎn)鼓試驗臺的方案，在現(xiàn)有條件和成本預(yù)算下創(chuàng)新思路，利用東華測試無線扭矩測試系統(tǒng)技術(shù)，在拖拉機(jī)驅(qū)動輪軸處貼應(yīng)變片，測量拖拉機(jī)驅(qū)動輪軸扭矩，完成對拖拉機(jī)驅(qū)動輪軸扭矩信號的無線采集。同時，配合使用轉(zhuǎn)速測量裝置測量拖拉機(jī)驅(qū)動輪軸轉(zhuǎn)速，將數(shù)據(jù)傳送至計算機(jī)實時存儲和顯示。此外，中國一拖產(chǎn)品試驗部還設(shè)計制作了專用滾道，模擬各種滑轉(zhuǎn)條件代替轉(zhuǎn)鼓試驗臺，免去基建施工。
 
　　經(jīng)過測試，中國一拖開發(fā)的模擬打滑輥道試驗臺可以完全實現(xiàn)樣機(jī)在單側(cè)單輪打滑、單側(cè)雙輪打滑和異側(cè)雙輪打滑狀態(tài)時的場地模擬；無線測試設(shè)備能采集到任何時間內(nèi)車輪所受的扭矩以及轉(zhuǎn)速等試驗數(shù)據(jù)；確定的扭腰輪式拖拉機(jī)扭矩分配測試試驗方法可以達(dá)到試驗任務(wù)目標(biāo)，獲得了測試專家組的一致認(rèn)可和高度評價。
 

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