机械设备是机械化施工的物质基础。沥青混凝土摊铺机是铺筑沥青混凝土路面必不可少的重要工具,其本身的性能及操作对摊铺平整度的影响很大。同时,摊铺机结构参数不稳定、行走装置打滑、摊铺机摊铺速度的快慢不匀、机械猛烈起步和紧急制动以及供料速度的忽快忽慢等,都会造成面层的不平整。摊铺机厂家介绍了沥青混凝土摊铺机的选型要求及相应的摊铺机结构参数的调整与选用。

Mechanical equipment is the material foundation of mechanized construction. Asphalt concrete paver is an essential tool for laying asphalt concrete pavement, and its performance and operation have a significant impact on the smoothness of paving. At the same time, unstable structural parameters of the paver, slipping of the walking device, uneven paving speed of the paver, violent mechanical starting and emergency braking, and fluctuating feeding speed can all cause unevenness in the surface layer. The paver manufacturer introduced the selection requirements for asphalt concrete pavers and the corresponding adjustment and selection of paver structural parameters.

1 沥青混凝土摊铺机的选型

Selection of asphalt concrete paver

摊铺机的选配要考虑机械设备之间的能力匹配。就摊铺质量而言,摊铺作业速度是否均匀、摊铺

The selection of pavers should consider the ability matching between mechanical equipment. In terms of paving quality, whether the paving operation speed is uniform and whether the paving

作业是否连续、摊铺宽度及厚度能否满足工艺要求等,都是选择摊铺机时必须考虑的问题。摊铺作业

Whether the homework is continuous, and whether the paving width and thickness can meet the process requirements are all issues that must be considered when choosing a paving machine. Paving operation

速度的均匀连续,主要取决于摊铺机的有效摊铺能力与拌和设备的实际拌和能力是否匹配,而摊铺能

The uniform and continuous speed mainly depends on whether the effective paving capacity of the paver matches the actual mixing capacity of the mixing equipment, and paving can

力又是由摊铺作业速度、一次铺筑宽度、厚度以及沥青混凝土碾压密实度决定的。这就要求在选择摊铺机时,要综合考虑道路的设计宽度、摊铺密实厚度、摊铺机作业速度的可调范围以及找平、分料效果。

The strength is determined by the speed of paving operation, the width and thickness of a single paving, and the compactness of asphalt concrete compaction. This requires that when selecting a paver, comprehensive consideration should be given to the design width of the road, the compacted thickness of the paving, the adjustable range of the paver's operating speed, and the leveling and material distribution effects.

(1)根据道路的设计宽度、摊铺工艺及摊铺质量等要求,综合选择沥青混凝土摊铺机的摊铺

(1) Based on the requirements of road design width, paving technology, and paving quality, a comprehensive selection of asphalt concrete pavers is made for * * paving

宽度、**摊铺厚度、摊铺速度、摊铺机的生产率、摊铺成型精度和摊铺成型质量等。即充分考虑沥青混凝土摊铺机的主参数和基本参数满足工程设计的要求,并且与沥青混凝土搅拌设备的生产率相配套。

Width, paving thickness, paving speed, productivity of the paver, paving forming accuracy, and paving forming quality. Fully consider the main and basic parameters of the asphalt concrete paver to meet the requirements of engineering design, and match the productivity of the asphalt concrete mixing equipment.

(2)履带式沥青混凝土摊铺机具有较长的接地长度,接地面积大、接地比压小,对不平整的路面适

(2) The tracked asphalt concrete paver has a longer grounding length, a larger grounding area, and a smaller grounding pressure, making it suitable for uneven road surfaces

应性好,在稍作预压实的不平整路面上即可进行高质量的摊铺。采用专用的柔性橡胶履带,静摩擦力

Good adaptability, high-quality paving can be carried out on slightly pre compacted uneven road surfaces. Adopting specialized flexible rubber tracks with static friction force

和整机质量较大,使履带式沥青混凝土摊铺机具有更大的牵引力,可在各种路面上进行摊铺作业,也可

The larger overall weight of the machine gives the tracked asphalt concrete paver greater traction, allowing for paving operations on various road surfaces, as well as

在高低不平的道路上高速平稳行驶,具有行驶噪声低、速度快等特点。

Driving at high speed and smoothly on uneven roads has the characteristics of low driving noise and fast speed.

(3)轮胎式沥青混凝土摊铺机具有良好的机动性,转移方便,但在路基较差的情况下易打滑。在前

(3) The tire type asphalt concrete paver has good maneuverability and is easy to transfer, but it is prone to slipping in poor roadbed conditions. Before

转向轮加装具有同步与差速控制功能的独立液压驱动机构,可使前轮既驱动又转向,能在摊铺作业时提高牵引力,有效地防止摊铺机打滑,而在摊铺机高速行驶时还可使前转向轮不驱动。

The installation of an independent hydraulic drive mechanism with synchronization and differential control functions on the steering wheel can enable the front wheels to drive and turn, improve traction during paving operations, effectively prevent the paver from slipping, and also prevent the front steering wheel from being driven when the paver is traveling at high speed.

(4)采用电子控制装置控制液压泵,使其按电位器预先设定的行驶和转向数值供给所需流量。速

(4) Using an electronic control device to control the hydraulic pump, it supplies the required flow rate according to the predetermined driving and steering values of the potentiometer. speed

度传感器能不间断地检测实际速度值,并通过电信号传递给电子控制装置,再与电位器装置自动改变

The degree sensor can continuously detect the actual speed value and transmit it to the electronic control device through an electrical signal, which then automatically changes with the potentiometer device

变量泵的流量,以符合设定的行驶速度。即使在超载的情况下,也能按预选的速度行驶,因而能够获得

The flow rate of the variable pump should meet the set driving speed. Even in case of overload, it can still drive at the pre-selected speed, thus obtaining

很高的摊铺质量。

High paving quality.

(5)行驶系统备有一套应急控制装置,可保证在电子控制装置或速度传感器出现故障时仍可以继

(5) The driving system is equipped with an emergency control device, which can ensure that in the event of a malfunction in the electronic control device or speed sensor, it can still continue to operate

续作业。

Continuation of homework.

(6)除配置标准的熨平板外,还可以根据施工需要选择其他规格的熨平板。此外,电子调平装置、

(6) In addition to standard ironing plates, other specifications of ironing plates can also be selected according to construction needs. In addition, electronic leveling devices

调平梁、拖管、基准线支架、45°切边靴等附件也可根据施工情况选择。

Accessories such as leveling beams, towing pipes, baseline brackets, and 45 ° edge cutting shoes can also be selected according to the construction situation.

2 沥青混凝土摊铺机结构参数的调整

Adjustment of structural parameters of asphalt concrete paver

沥青混凝土摊铺机结构参数是指熨平板的宽度、拱度、工作角、螺旋分料器的长度及位置、振捣器和振动器的振幅、频率等。当同一台摊铺机选用了不同的结构参数时,所铺筑出的摊铺层的性质就不同。因此,合理地调整与选用各结构参数值,是保证摊铺层均匀一致、平整密实的重要前提。

The structural parameters of asphalt concrete paver refer to the width, arch, working angle of the ironing plate, length and position of the spiral distributor, amplitude and frequency of the vibrator and vibrator, etc. When the same paver uses different structural parameters, the properties of the paving layer it lays will be different. Therefore, reasonable adjustment and selection of various structural parameter values is an important prerequisite to ensure the uniformity, flatness, and compactness of the paving layer.