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地點: 呼和浩特市
開展時間: 2025-03-26
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地點: 合肥市
開展時間: 2025-03-27
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地點: 無錫市
開展時間: 2025-03-29
舉辦單位: 中國機電產品流通協會、無錫市機床工具行業協會、無錫市工業和信息化局
2024年春耕生產農機具檢修安全注意事項
2024-03-08
08:40:40
來源:黑龍江省農業農村廳 閱讀量:20421
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【農機網 熱點關注】 為確保2024年春耕生產農機具檢修安全,提高在用農業機械的技術性能狀態,特提出以下春耕農業生產主要農機具檢修注意事項。
1.檢查
發動機冷卻系統是否有凍傷,特別是年前發動機未放水,或者未加防凍液的車,要仔細查看發動機的機體水堵、放水開關、機油
散熱器等處是否有凍裂跡象。
2.檢查拖拉機啟動、照明、儀表的電路是否正常,所有電氣附件的絕緣部分,不得有漏電、短路等現象。
3.在蓄電池電量不足時,要先用蓄電池額定電流的十分之一充電。在鉛酸電池充電時,電解液液面高度與刻線平齊或高出隔板10~15毫米,要打開加液塞,以防出氣孔堵塞,蓄電池因氣壓過高而爆炸。充電完成后,單體蓄電池電壓應在13伏左右。
4.起動前主、副變速手柄應處于“空”、“降”、“中間”或“分離”位置,液壓動力裝置應處于“中間”位置。啟動時轉速需要先低后高,逐漸增加動力轉速,同時觀察儀表,細聽聲音,檢查有無漏水、漏油、漏氣現象,如有異常,應先停機后檢查并排除故障。
5.發動機起動困難時,為保護蓄電池,不得連續、頻繁起動,再次起動必須保證足夠的時間間隔。需要使用預熱塞起動發動機時,預熱時間應根據氣溫情況確定。
6.逐一檢查變速箱、前橋、末端傳動的潤滑油;檢查方向機的鋰基潤滑脂(蝸輪蝸桿機械式方向機)或液壓油箱(液壓轉向方向機)內液壓油是否充足;檢查液壓系統的液壓油是否充足。
7.檢查左右轉向間的間隙,觀察拉桿球頭傳動和油缸(液壓油缸方向)銷軸間隙,如間隙過大,需更換拉桿球頭和油缸銷軸。更換球頭和銷軸后,需檢查前束,四輪驅動的前束是0~4毫米,兩輪驅動的前束是5~10毫米。
8.檢查離合器踏板和分離軸承與分離杠桿的間隙,保證分離徹底、靈活,無卡滯,踩下踏板行程五分之四時,能掛換檔位,無打齒異響。如離合器使用時間過長,需拆開檢查摩擦片和分離軸承,如果超限需更換;如磨損不大,分離軸承加潤滑脂后,再按標準組裝好。
9.檢查制動器制動液面和踏板行程,制動踏板第一腳能一次踩死,連續第二腳踩不動,回位正常且無卡滯,左右制動踏板高度應同步。
10.拖拉機駕駛室及駕駛座不得超員乘坐,不得放置有礙操作、影響視線及有安全隱患的物品。
11.拖拉機加油時,發動機必須熄火,加油過程中嚴禁煙火。
12.拖拉機發生故障時,應立即停機熄火,再排除故障。
13.拖拉機作業行進中,禁止用手、腳或工具清除農具上的泥土和雜草。
14.嚴禁拖拉機掛車載人或人貨混載。
15.拖拉機掛接農具或掛車時,應確保連接可靠,并加裝保險鏈。
16.拖拉機在行駛、作業過程中,不準用猛松離合器的方法起步或沖越障礙。
二、旋耕機
1.檢查傳動箱齒輪油油量,低于油面線的要補加同類型齒輪油;檢查各個齒輪之間間隙,特別是圓錐齒輪嚙合間隙,間隙過大過小都會引發故障;檢查傳動箱輸出花鍵軸和刀軸軸套之間間隙,磨損嚴重的要成套更換。
2.更換刀片等旋轉零件時,必須將拖拉機熄火。檢查刀軸兩端油封,以及刀軸、刀座和刀片,如有破損應除舊換新。更換刀片時應按照雙螺旋線方向有規律地緊固刀片固定螺栓。
3.檢查旋耕刀是否裝反和固定螺栓及萬向節鎖銷是否牢靠,確認穩妥后方可使用。
4.拖拉機啟動前,應將旋耕機離合器手柄撥到分離位置。要在提升狀態下接合動力,待旋耕機達到預定轉速后,機組方可起步,并將旋耕機緩慢降下,使旋耕刀入土。嚴禁在旋耕刀入土情況下直接起步,以防旋耕刀及相關部件損壞。嚴禁急速下降旋耕機,旋耕刀入土后嚴禁倒退和轉彎。
5.作業中,如刀軸過多地纏草,應及時停車清理,以免增加機具負荷。
6.地頭轉彎未切斷動力時,旋耕機不得提升過高,萬向節兩端傳動角度不得超過30度,同時應適當降低發動機轉速。
7.轉移地塊或遠距離行走時,應將旋耕機動力切斷,并升到最高位置后鎖定。
8.旋耕機運轉時,人嚴禁接近旋轉部件,旋耕機后面也不得有人,以防刀片甩出傷人。
9.旋耕時,拖拉機和懸掛部分不準乘人,以防不慎被旋耕機傷害。
三、秸稈粉碎還田機
1.檢查擰緊各連接螺栓、螺母。
2.檢查各插銷、開口銷有無缺損,必要時添補或更換。
3.加注潤滑脂,傳動軸伸縮套內應涂抹潤滑脂。
4.檢查齒輪箱密封情況,靜結合處不應滲油,動結合處不滴、漏油;如滲漏油,需更換紙墊或油封。
5.檢查齒輪箱潤滑油油面,不夠時添加。檢查齒輪箱上呼吸孔是否暢通,如有堵塞應及時疏通。檢查放油堵螺栓是否松動,應擰緊密封。
6.檢查刀軸甩刀(錘爪)是否缺損并及時補齊。刀片應成組更換。更換刀片時,應對稱更換徑向相鄰的兩組刀片,每組刀片重量差應小于10克。
7.清除甩刀、刀軸、定刀片上的泥土與纏留物。
8.檢查各軸承處溫升,若溫升過快、過高,即為軸承間隙過大或缺潤滑油所致,應及時調整間隙或加潤滑油潤滑。
9.隨時檢查及調整皮帶張緊度,及時清理機殼內壁上的粘集土層,發現聲音不正常、振動時,應立即停車檢查。
10.調整留茬高度。調整限深滾,在機架左右兩側側板上預留了一排調整孔,固定位置不同,得到的留茬高度也不同,調整時兩邊應同步調整。注意最低留茬高度以甩刀(錘爪)刃口不入土為宜,否則會加速甩刀(錘爪)磨損,降低粉碎效果,增加拖拉機負荷。
11.秸稈粉碎還田機運轉時,嚴禁人體接近旋轉部分,機具上和機具后嚴禁有人,以防造成人員傷亡事故。
12.轉彎、倒車時,必須提升秸稈粉碎還田機并切斷動力,嚴禁猛提猛放。
13.作業時如有異響,振動異常時,應立即停車檢查,排除故障后方可繼續工作。
14.檢修、清理機具雜物時,拖拉機必須熄火,將機具落地并穩固,防止機具傷人。
四、玉米精量播種機
1.播種機開溝器必須與施肥開溝器左右方向錯開50毫米以上,避免化肥燒苗。安裝各播種總成時要盡量保持各對應軸孔同心,螺栓旋緊時,邊擰邊觀察總成與支架梁的間隙,要保證與梁面完整接合。
2.按當地農藝要求調整播種機行距;調整時以播種機梁架中心線為基準線,向左、右對稱串動播種單體和施肥開溝部件,同時,支撐輪、傳動機構以及排肥箱也要做相應調整。移動過的零部件要重新擰緊。
3.播種株距的調整就是對播種機的傳動系統進行調整,大多數播種機的傳動系統都是由鏈條傳動來完成的,可以根據使用說明書中的播量表進行相應的調整,掛接好相應的鏈輪并張緊。
4.調整施肥深度時,應松開施肥開溝器固定座上的頂絲,上下移動犁柱調整深淺,上移則淺、下移則深。要求各施肥開溝器下尖連線與機架平行,建議施肥開溝器較播種開溝器深50毫米,以實現深施肥。
5.作物品種、畝保苗株數(壟距和株距)、土壤肥力決定畝施肥量,根據施肥量的要求,以支撐輪轉動10圈為準,測定排肥器排除肥量大小,再計算出畝排肥量(滑移率按10%計算),直到調節排肥器達到畝排肥量時為準。
6.調節每個播種單體上的限深指針手柄,操作時要讓每一個播種單體上的限深指示針處于同一刻度位置,保證整機播種深度一致。但在播種作業的實際操作中,受整地條件和土壤環境不同所限,播深調整后應進行實際播種深度測定,一旦出現指示播深與實際播深不符時,要進行二次微調,達到播深一致的效果。
7.在調整播種量時,應打開排種器蓋調整隔板,隔板定位孔上移,重播率降低,但空穴率提高;隔板定位孔下移,空穴率降低,但重播率提高。需要反復調整試驗,達到滿意狀態為止。
8.通過調整鏈條張緊板的位置改變鏈條張緊程度,達到使用要求。
9.播種機在選擇作業路線時,機械應保證進出方便且便于加種。
10.播種時不能中途停車或忽慢忽快,要保持勻速直線前行,以免漏播、重播。
11.要在行進過程中操作播種機的升降,轉彎或倒退時應提升播種機,以防止開溝器被堵塞。
12.在播種時對傳動部位、開溝器、排種盒以及覆蓋器的工作情況應實時進行觀察,及時排除粘土、纏草、堵塞或種子沒覆蓋嚴的情況。
13.播種機啟動作業時,要邊走邊下落播種機,不能把播種機猛放入土作業,以免入土工作部件受到劇烈沖擊損壞,也避免造成導種管口和施肥開溝器口堵塞。
14.嚴禁在播種作業時進行調整、修理和潤滑工作。工作部件和傳動部件粘土或纏草過多時,必須停車清理,嚴禁在作業中用手清理。
15.不準在左右劃印器下站人和在機組前來回走動,以免發生人身事故。
16.播種機在作業過程中不允許急轉彎和倒車,以免損壞播種部件。
17.播拌藥種子時,工作人員應戴風鏡、口罩與手套等防護用具。播后剩余種子要妥善處理,嚴禁食用,以防人畜中毒。
五、水稻插秧機
1.清洗機體,清除異物、纏繞物;清潔空氣濾清器、散熱器、油水分離器。
2.檢查及添加燃油、冷卻液(水)。按說明書規定作業時長加注燃油,清潔或更換燃油濾清器濾芯;檢查、補充或更換發動機、變速箱、后車軸箱、插秧箱等部件機油,更換機油應同時更換機油濾清器濾芯。
3.按說明書要求,對插秧臂、旋轉箱、移動支架、浮舟、連桿、驅動軸、滑塊、導軌、各行離合器等部件涂抹或加注鋰基潤滑油脂。
4.檢查外部及連接部主要螺母有無異常、松動,如有需調整;檢查前后輪胎磨損;檢查、調整或更換發動機皮帶、變速箱驅動皮帶、縱向傳送帶;檢查調整各手柄及拉桿、拉線;檢查或更換推秧器、秧針;檢查及調整取苗量符合技術要求;檢查并補充蓄電池電量。
5.檢查啟動電機、發電機、喇叭、車燈等電器部件是否正常,發動機有無異響,排氣煙色是否正常,儀表指示是否正常等,發現故障及時維修。
6.檢查載秧臺、送秧部件及插植臂等插植部件是否工作正常,發現故障及時維修。
7.緩慢起步,檢查插秧機行走是否平穩,制動器、變速器是否正常工作等,發現故障及時維修。
8.機手和喂秧手要密切配合,操作協調,以免動作不一發生事故。
9.插秧作業時,有時因秧箱內秧苗數量少且傾倒,此時應加滿秧苗,切勿用手扶抵秧苗下部,以防秧爪傷手。
10.當插秧機下陷時,請勿硬行牽拉或上抬,可用水田輪加塞棍子法,即水田輪轉動時,將長650 mm,直徑100 mm的棍子塞在水田輪葉片間,使機具逐漸離開下陷地帶。
11.插秧機轉向時,不得繼續栽插(此時摘除插秧擋),以免扭壞萬向節。
12.在插秧機工作過程中,要確保船板清潔,避免秧盤或是其他一些雜物纏在傳動軸或萬向節上。
13.仔細閱讀并充分理解說明書和產品上粘貼的警示標牌、提示標牌。
14.飲酒后、睡眠不足和過于勞累時請不要操作機器。
15.在插秧機工作的過程中,如需要調整,必須要將插秧機停機,熄火后再進行相關的調整。
16.不得用插秧機拖拉重物。
17.進、出田塊和過田埂時,要低速行駛,并嚴格按照使用說明書的操作方法進行。
18.停車時,請務必將主變速手柄置于空擋位置,并踩下剎車踏板,必要時熄滅發動機。
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民乐县|
岑溪市|
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