自動(dòng)攪拌車(chē)的方向盤(pán)是攪拌車(chē)的控制部件和轉(zhuǎn)向系統(tǒng)的一部分。整個(gè)轉(zhuǎn)向機(jī)構(gòu)的原理是通過(guò)齒輪齒條將圓周運(yùn)動(dòng)變?yōu)橹本€運(yùn)動(dòng)，推動(dòng)車(chē)輪轉(zhuǎn)動(dòng)。在物理學(xué)中，方向盤(pán)本身就是一個(gè)杠桿。攪拌車(chē)方向盤(pán)的半徑是力臂的長(zhǎng)度。方向盤(pán)越大，越省力。

The steering wheel of the automatic mixer is a part of the control component and steering system of the mixer. The principle of the whole steering mechanism is to change the circular motion into the linear motion through the gear rack to drive the wheel to rotate. In physics, the steering wheel itself is a lever. The radius of the mixer steering wheel is the length of the force arm. The larger the steering wheel, the less effort.

攪拌車(chē)的舵機(jī)可分為幾種類(lèi)型。常見(jiàn)的是齒輪齒條轉(zhuǎn)向機(jī)和循環(huán)球轉(zhuǎn)向機(jī)。齒輪齒條式轉(zhuǎn)向系統(tǒng)已迅速成為密煉機(jī)和小型密煉機(jī)常用的轉(zhuǎn)向系統(tǒng)。其工作機(jī)理非常簡(jiǎn)單。攪拌車(chē)的齒輪齒條組用金屬管包裹。

The steering gear of mixer truck can be divided into several types. The common ones are rack and pinion steering gear and recirculating ball steering gear. Rack and pinion steering system has rapidly become a common steering system for internal mixer and small internal mixer. Its working mechanism is very simple. The gear rack set of the mixer truck is wrapped with metal pipes.

齒條的每個(gè)齒端伸出金屬管，并用拉桿連接在一起。小齒輪與轉(zhuǎn)向軸相連。轉(zhuǎn)動(dòng)方向盤(pán)時(shí)，齒輪轉(zhuǎn)動(dòng)，帶動(dòng)齒條運(yùn)動(dòng)。攪拌車(chē)機(jī)架每個(gè)齒端的橫拉桿連接到轉(zhuǎn)向軸的轉(zhuǎn)向臂上。

Each tooth end of the rack extends out of a metal tube and is connected together with a pull rod. The pinion is connected to the steering shaft. When the steering wheel is turned, the gear rotates to drive the rack. The tie rod at each tooth end of the mixer frame is connected to the steering arm of the steering shaft.

目前許多攪拌車(chē)采用循環(huán)球轉(zhuǎn)向系統(tǒng)。車(chē)輪的拉桿與齒輪齒條式轉(zhuǎn)向系統(tǒng)略有不同。攪拌輪的拉桿與齒輪齒條轉(zhuǎn)向系統(tǒng)略有不同。循環(huán)球系統(tǒng)的動(dòng)力轉(zhuǎn)向原理與齒輪齒條系統(tǒng)相似。其輔助動(dòng)力還通過(guò)向金屬塊的一側(cè)注入高壓液體來(lái)提供。

At present, many mixer trucks use the circulating ball steering system. The pull rod of the wheel is slightly different from the rack and pinion steering system. The pull rod of the mixing wheel is slightly different from the gear rack steering system. The power steering principle of the recirculating ball system is similar to that of the rack and pinion system. The auxiliary power is also provided by injecting high-pressure liquid into one side of the metal block.

此外要想攪拌車(chē)延長(zhǎng)使用壽命就需要做到幾點(diǎn)：當(dāng)軸承的壽命終了時(shí)，電動(dòng)機(jī)運(yùn)行的振動(dòng)及噪聲將明顯增大，檢查軸承的徑向游隙達(dá)到下列值時(shí)，即應(yīng)更換軸承。使用環(huán)境應(yīng)經(jīng)常保持干燥，電動(dòng)機(jī)表面應(yīng)保持清潔，進(jìn)風(fēng)口不應(yīng)受塵土、纖維等阻礙。應(yīng)保證電動(dòng)機(jī)在運(yùn)行過(guò)程中良好的潤(rùn)滑。

In addition, in order to prolong the service life of the mixer truck, it is necessary to do several things: when the service life of the bearing ends, the vibration and noise of the motor will increase significantly. When the radial clearance of the bearing reaches the following values, the bearing should be replaced. The operating environment should always be kept dry, the motor surface should be kept clean, and the air inlet should not be obstructed by dust, fiber, etc. The motor shall be well lubricated during operation.

自動(dòng)攪拌車(chē)更換繞組時(shí)必須記下原繞組的形式，尺寸及匝數(shù)，線規(guī)等，當(dāng)失落了這些數(shù)據(jù)時(shí)，應(yīng)向制造廠索取，隨意更改原設(shè)計(jì)繞組，常常使電動(dòng)機(jī)某項(xiàng)或幾項(xiàng)性能惡化，甚至于無(wú)法使用。當(dāng)電動(dòng)機(jī)的熱保護(hù)連續(xù)發(fā)生動(dòng)作時(shí)，應(yīng)查明故障來(lái)自電動(dòng)機(jī)還是超負(fù)荷或保護(hù)裝置整定值太低，消除故障后，方可投入運(yùn)行。拆卸電動(dòng)機(jī)時(shí)，從軸伸端或非伸端取出轉(zhuǎn)子都可以。

When replacing the winding of the automatic mixer truck, the form, size, number of turns, wire gauge, etc. of the original winding must be recorded. When these data are lost, they should be obtained from the manufacturer, and the original design winding should be changed at will, which often deteriorates the performance of one or more items of the motor, or even can not be used. When the thermal protection of the motor acts continuously, it is necessary to find out whether the fault is from the motor or overload or the setting value of the protection device is too low. The motor can be put into operation only after the fault is eliminated. When disassembling the motor, take out the rotor from the shaft extension end or non extension end.

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