混凝土攪拌機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。那么混凝土攪拌機攪拌筒設計的關鍵是什么呢？下面小編就來為您講講相關內容吧。

The inner wall of the mixing drum of the concrete mixer is usually provided with a pair of ribbon shaped spiral blades, which are installed 180 ° apart and adopt left-handed blades. So what is the key to the design of the mixing drum of the concrete mixer? Let me tell you something about it.

攪拌筒旋轉時，2條螺旋葉片被帶動作圍繞攪拌軸線的運動，實現混凝土的進料、攪拌、卸料作業。

When the mixing drum rotates, the two spiral blades are driven to move around the mixing axis to realize the feeding, mixing and unloading of concrete.

攪拌筒按功能可劃分為2個區段，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程中對混凝土的攪動，防止凝固、離析，在卸料時將底部混凝土推出。

The mixing drum can be divided into two sections according to its function. The tail cone outlet section is the unloading guide section. The cylindrical section and the front cone section are mainly used to stir the concrete during transportation, prevent solidification and segregation, and push out the bottom concrete during unloading.

圓錐螺旋面是指母線aa′繞圓錐中心軸線、沿筒壁螺旋線軌跡旋轉，母線的運動軌跡所形成的圓錐螺旋面。母線為直線的形成直紋螺旋面，母線為曲線的形成非直紋螺旋面。

Conical helicoid refers to the conical helicoid formed by the movement track of generatrix AA 'when generatrix AA' rotates around the central axis of the cone and along the spiral track of the cylinder wall. If the generatrix is a straight line, it forms a ruled spiral surface, and if the generatrix is a curve, it forms a non ruled spiral surface.

在直紋螺旋面中，母線與圓錐中心軸線正交的，形成直紋正螺旋面；母線與圓錐中心軸線斜交的，形成直紋斜螺旋面。

In the ruled helicoid, the generatrix is orthogonal to the central axis of the cone, forming a ruled positive helicoid; The generatrix is oblique to the central axis of the cone, forming a ruled oblique helical surface.

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

You think that there are two helices in the mixer barrel, but in fact, there are nine helices in the barrel, namely, the blade root helix (helix 1) and the blade tip helix (helix 4) of the front cone part, the blade root helix (helix 2) and the blade tip helix (Helix 5) of the cylindrical part, the blade root helix (helix 3) of the tail cone part, the middle helix (helix 6 and helix 8) The blade tip helix (helix 7 and helix 9), wherein helix 8 and helix 9 are transition helices between the cylindrical part and the tail cone part.

這些攪拌筒螺旋線的根部和頂部型式、螺旋角決定混凝土在攪拌筒內沿軸向或切向運動的強度，因而也影響著攪拌和卸料的性能，是攪拌筒設計的關鍵。更多內容就來我們網站http://www.gdfcx.net咨詢吧！

The root and top types and spiral angles of the spiral lines of these mixing drums determine the strength of the concrete moving in the axial or tangential direction in the mixing drum, and thus affect the mixing and unloading performance, which is the key to the design of the mixing drum. Come to our website for more information http://www.gdfcx.net Consult!