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攪拌車主要由攪拌鍋、攪拌葉片、傳動(dòng)機(jī)構(gòu)和控制系統(tǒng)組成。攪拌葉片在攪拌鍋內(nèi)公轉(zhuǎn)和反方向旋轉(zhuǎn)，并可上下調(diào)節(jié)。攪拌鍋可上下升降，傳動(dòng)結(jié)構(gòu)的攪拌葉片按規(guī)定的方向和速度運(yùn)轉(zhuǎn)?？刂葡到y(tǒng)具有自動(dòng)控制和按程序手動(dòng)控制兩種功能。

The mixer truck is mainly composed of a mixing pot, mixing blades, a transmission mechanism and a control system. The mixing blade rotates in the rotating and reverse directions in the mixing pot, and can be adjusted up and down. The mixing pot can be lifted up and down, and the mixing blade of the transmission structure operates in the specified direction and speed. The control system has two functions: automatic control and manual control according to the program.

攪拌車標(biāo)定過程有以下技術(shù)要求：

The following technical requirements apply to the calibration process of the mixer truck:

①轉(zhuǎn)速：低速62±5r/min，高速125±10r/min；②旋轉(zhuǎn)：低速140±5r/min，高速285±20r/min；③攪拌自動(dòng)控制程序時(shí)間：慢速（120±3）s、停止（15±1）s、快（120±3）s；

① Speed: low speed 62 ± 5r/min, high speed 125 ± 10r/min; ② Rotation: low speed 140 ± 5r/min, high speed 285 ± 20r/min; ③ Mixing automatic control program time: slow (120 ± 3) s, stop (15 ± 1) s, fast (120 ± 3) s;

④攪拌鍋尺寸內(nèi)徑：(160±1)mm；外徑：(139±2)mm；壁厚≥0.8mm；⑤攪拌葉片尺寸：攪拌葉片總長(zhǎng)度：（165±1）mm；攪拌葉片總寬度：112.5～111.0mm；攪拌葉片翅片外徑：6.5～5.0mm；有效攪拌長(zhǎng)度：(110±2)mm；⑥刀片與鍋底、鍋壁間隙：(2±1)mm。

④ Inner diameter of mixing pot: (160 ± 1) mm; Outer diameter: (139 ± 2) mm; Wall thickness ≥ 0.8mm; ⑤ Dimension of mixing blade: total length of mixing blade: (165 ± 1) mm; Total width of mixing blade: 112.5 ~ 111.0mm; Outer diameter of mixing blade fin: 6.5 ~ 5.0mm; Effective mixing length: (110 ± 2) mm; ⑥ The clearance between the blade and the bottom and wall of the pot: (2 ± 1) mm.

自動(dòng)上料攪拌車校準(zhǔn)過程中的問題

Problems in calibration of automatic loading mixer

旋轉(zhuǎn)的問題是直接用轉(zhuǎn)速計(jì)測(cè)量攪拌葉片的轉(zhuǎn)速，然后根據(jù)減速比計(jì)算出攪拌葉片的轉(zhuǎn)速。但是這種間接檢測(cè)轉(zhuǎn)速的方法存在很多問題：比如減速比的計(jì)算還需要打開機(jī)箱，直接統(tǒng)計(jì)行星機(jī)構(gòu)的齒圈和齒輪的數(shù)量。這種方法是一種間接方法。開箱直接點(diǎn)數(shù)后，需要安裝，降低了工作效率，對(duì)現(xiàn)場(chǎng)檢查人員造成人身隱患。

The problem of rotation is to directly measure the rotating speed of the mixing blade with a tachometer, and then calculate the rotating speed of the mixing blade according to the reduction ratio. However, there are many problems in this method of indirect speed detection: for example, the calculation of reduction ratio needs to open the chassis and directly count the number of rings and gears of the planetary mechanism. This method is an indirect one. After unpacking and counting directly, it needs to be installed, which reduces the work efficiency and causes potential safety hazards to on-site inspectors.

葉片與鍋底及鍋壁的間隙是攪拌車攪拌葉片與鍋底、鍋壁間隙的重要指標(biāo)。間隙過小，刮壁時(shí)會(huì)發(fā)出刺耳的聲音，同時(shí)會(huì)降低攪拌葉片和攪拌鍋的使用壽命；如果間隙過大，水泥稠度、凝結(jié)時(shí)間和穩(wěn)定性等實(shí)驗(yàn)數(shù)據(jù)就會(huì)不準(zhǔn)確。攪拌葉片與鍋底、鍋壁間隙的檢測(cè)：先切斷電源，打開電機(jī)后蓋，用手轉(zhuǎn)動(dòng)電機(jī)扇葉帶動(dòng)攪拌葉片。

The clearance between the blade and the bottom and wall of the pot is an important indicator of the clearance between the mixing blade and the bottom and wall of the mixer truck. If the clearance is too small, it will make a harsh sound when scraping the wall, and reduce the service life of the mixing blade and the mixing pot; If the gap is too large, the experimental data of cement consistency, setting time and stability will be inaccurate. Detection of the gap between the mixing blade and the bottom and wall of the pot: first cut off the power supply, open the back cover of the motor, and manually rotate the motor blade to drive the mixing blade.

使自動(dòng)上料攪拌車的攪拌葉片平面呈垂直于鍋壁的狀態(tài)，在直徑為Ф1mm和Ф3mm的6根對(duì)稱鋼絲上檢查葉片與鍋底和鍋壁的間隙。符合驗(yàn)證規(guī)定的要求。雖然滿足要求的條件是直徑為Ф1mm的鋼絲通過，直徑為Ф3mm的鋼絲不通過，但對(duì)鋼絲無相關(guān)技術(shù)要求。

Make the plane of the mixing blade of the automatic feeding mixer be perpendicular to the pot wall, and Ф 1mm and Ф Check the clearance between the blade and the bottom and wall of the pot on 6 3mm symmetrical steel wires. Meet the requirements specified in the verification. Although the required condition is that the diameter is Ф 1mm steel wire passing, diameter Ф 3mm steel wire fails to pass, but there are no relevant technical requirements for steel wire.

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