一般情況下，全自動(dòng)混凝土攪拌車(chē)攪拌筒的前錐、中錐、后錐長(cháng)度的參數選取通常情況下大直徑取在2100~2300mm之間，如果大直徑取在2400mm,全自動(dòng)混凝土攪拌車(chē)在轉彎時(shí)就會(huì )有發(fā)飄現象，就有可能造成事故。下面來(lái)介紹下它的攪拌筒螺旋線(xiàn)葉片。

Generally, the parameters of the length of the front cone, middle cone and back cone of the mixing drum of the automatic concrete mixer are generally 2100~2300mm. If the large diameter is 2400mm, the automatic concrete mixer will drift when turning, which may cause accidents. Now let's introduce the spiral blades of the mixing drum.

全自動(dòng)混凝土攪拌車(chē)攪拌筒內壁通常設置1對帶狀的螺旋葉片，相錯180°安裝，采用左旋葉片。攪拌筒旋轉時(shí)，2條螺旋葉片被帶動(dòng)作圍繞攪拌軸線(xiàn)的運動(dòng)，實(shí)現混凝土的進(jìn)料、攪拌、卸料作業(yè)。攪拌筒按功能可劃分為2個(gè)區段，尾錐出口段為卸料引導區段，圓柱部分、前錐部分主要用于運輸過(guò)程中對混凝土的攪動(dòng)，防止凝固、離析，在卸料時(shí)將底部混凝土推出。

The inner wall of the mixing drum of the fully automatic concrete mixer truck is usually equipped with a pair of ribbon shaped spiral blades, which are installed 180 ° staggered, and left-handed blades are used. When the mixing drum rotates, the two spiral blades are driven to move around the mixing axis to realize the concrete feeding, mixing and unloading operations. The mixing drum can be divided into two sections according to its function. The outlet section of the tail cone is the unloading guide section. The cylinder section and the front cone section are mainly used to stir the concrete during transportation to prevent solidification and segregation. The bottom concrete is pushed out during unloading.

圓錐螺旋面是指母線(xiàn)aa′繞圓錐中心軸線(xiàn)、沿筒壁螺旋線(xiàn)軌跡旋轉，母線(xiàn)的運動(dòng)軌跡所形成的圓錐螺旋面。母線(xiàn)為直線(xiàn)的形成直紋螺旋面，母線(xiàn)為曲線(xiàn)的形成非直紋螺旋面。在直紋螺旋面中，母線(xiàn)與圓錐中心軸線(xiàn)正交的，形成直紋正螺旋面；母線(xiàn)與圓錐中心軸線(xiàn)斜交的，形成直紋斜螺旋面。

Conical helicoid refers to the conical helicoid formed by the generatrix aa 'rotating around the central axis of the cone and along the spiral track of the cylinder wall, and the movement track of the generatrix. The generatrix is a straight line forming a ruled helicoid, and the generatrix is a curve forming a non ruled helicoid. In the ruled helicoid, the generatrix is orthogonal to the central axis of the cone to form the ruled helicoid; The generatrix is oblique to the central axis of the cone, forming a ruled oblique helicoid.

你以為攪拌車(chē)筒體有兩條螺旋線(xiàn)，其實(shí)筒體內共設置了9條螺旋線(xiàn)，即前錐部分葉片葉根螺旋線(xiàn)（螺旋線(xiàn)1）和葉頂螺旋線(xiàn)（螺旋線(xiàn)4），圓柱部分葉片葉根螺旋線(xiàn)（螺旋線(xiàn)2）和葉頂螺旋線(xiàn)（螺旋線(xiàn)5），尾錐部分葉根螺旋線(xiàn)（螺旋線(xiàn)3）、葉中螺旋線(xiàn)（螺旋線(xiàn)6和螺旋線(xiàn)8）、葉頂螺旋線(xiàn)（螺旋線(xiàn)7和螺旋線(xiàn)9），其中螺旋線(xiàn)8和螺旋線(xiàn)9為圓柱部分與尾錐部分的過(guò)渡螺旋線(xiàn)。

You think there are two helices in the mixer cylinder. In fact, there are nine helices in the cylinder, namely, the blade root helix (helix 1) and the blade tip helix (helix 4) in the front cone part, the blade root helix (helix 2) and the blade tip helix (helix 5) in the cylinder part, the blade root helix (helix 3) in the tail cone part, the blade middle helix (helix 6 and helix 8) Helix at blade top (Helix 7 and Helix 9), where Helix 8 and Helix 9 are transitional helices between cylindrical part and tail cone part.

這些攪拌筒螺旋線(xiàn)的根部和頂部型式、螺旋角決定混凝土在攪拌筒內沿軸向或切向運動(dòng)的強度，因而也影響著(zhù)攪拌和卸料的性能，是攪拌筒設計的關(guān)鍵。

The types of the root and top of the spiral lines and the spiral angle of these mixing drums determine the strength of the axial or tangential movement of concrete in the mixing drum, thus affecting the performance of mixing and discharging, which is the key to the design of mixing drums.

全自動(dòng)混凝土攪拌車(chē)的攪拌筒螺旋線(xiàn)葉片介紹就到這里了，您對此有什么疑惑或者需求嗎？歡迎來(lái)我們網(wǎng)站http://www.jqeq.cn查看相關(guān)信息或者聯(lián)系有關(guān)人員進(jìn)行咨詢(xún)！

That's all for the introduction of the spiral blades of the mixing drum of the automatic concrete mixer. Do you have any doubts or needs? Welcome to our website http://www.jqeq.cn Check relevant information or contact relevant personnel for consultation!