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搅拌车校准过程中的问题出现分析

发布时间:2022-06-29 来源:http://www.jfhntjbc.com/ 浏览量:

概述:搅拌车主要由搅拌锅、搅拌叶片、传动机构和控制系统组成。搅拌叶片在搅拌锅内公转和反方向旋转,并可上下调节。搅拌锅可上下升降,传动结构
搅拌车主要由搅拌锅、搅拌叶片、传动机构和控制系统组成。搅拌叶片在搅拌锅内公转和反方向旋转,并可上下调节。搅拌锅可上下升降,传动结构的搅拌叶片按规定的方向和速度运转。控制系统具有自动控制和按程序手动控制两种功能。
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.
搅拌车标定过程有以下技术要求:
The following technical requirements apply to the calibration process of the mixer truck:
①转速:低速62±5r/min,高速125±10r/min;②旋转:低速140±5r/min,高速285±20r/min;③搅拌自动控制程序时间: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搅拌锅尺寸内径:(160±1)mm;外径:(139±2)mm;壁厚≥0.8mm;⑤搅拌叶片尺寸:搅拌叶片总长度:(165±1)mm;搅拌叶片总宽度:112.5~111.0mm;搅拌叶片翅片外径:6.5~5.0mm;有效搅拌长度:(110±2)mm;⑥刀片与锅底、锅壁间隙:(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.
自动上料搅拌车校准过程中的问题
Problems in calibration of automatic loading mixer
旋转的问题是直接用转速计测量搅拌叶片的转速,然后根据减速比计算出搅拌叶片的转速。但是这种间接检测转速的方法存在很多问题:比如减速比的计算还需要打开机箱,直接统计行星机构的齿圈和齿轮的数量。这种方法是一种间接方法。开箱直接点数后,需要安装,降低了工作效率,对现场检查人员造成人身安全隐患。
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.
自动上料搅拌车
叶片与锅底及锅壁的间隙是搅拌车搅拌叶片与锅底、锅壁间隙的重要指标。间隙过小,刮壁时会发出刺耳的声音,同时会降低搅拌叶片和搅拌锅的使用寿命;如果间隙过大,水泥稠度、凝结时间和稳定性等实验数据就会不准确。搅拌叶片与锅底、锅壁间隙的检测:先切断电源,打开电机后盖,用手转动电机扇叶带动搅拌叶片。
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.
使自动上料搅拌车的搅拌叶片平面呈垂直于锅壁的状态,在直径为Ф1mm和Ф3mm的6根对称钢丝上检查叶片与锅底和锅壁的间隙。符合验证规定的要求。虽然满足要求的条件是直径为Ф1mm的钢丝通过,直径为Ф3mm的钢丝不通过,但对钢丝无相关技术要求。
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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