V型吊车支撑总装

Schuitemaker

更轻的生产

The Netherlands-based agricultural machinery manufacturer Schuitemaker has trimmed its production to achieve significantly shorter throughput times by restructuring its final assembly operation. All steps for series assembly have been merged into a linear production process. The staff in the newly created workshop area are supported by cranes at almost every step in assembly. Schuitemaker invested in a total of eleven Demag V-type cranes, as their open girder architecture met in full the previously defined requirements for ergonomics, precision and energy efficiency.

在农业领域,舒特梅克在荷兰境外赢得了良好的声誉。自从100年前作为乡村铁匠厂成立以来,该公司已发展成为一家专业生产高品质农业机械的公司。Schuitemaker的产品用于饲料生产、饲养和粪便撒布,无论是饲养肉类还是饲养乳制品。在荷兰东部的Rijssen,大约180名员工开发和制造饲料车、青贮饲料车和动物饲料配送车。生产遵循季节性需求。Schuitemaker的首席执行官Johan H.Veenstra指出:“除了服务于国内市场外,我们还出口到全球30多个国家。我们在高端市场提供机械产品,并对我们的产品制定了非常高的质量标准,我们可以在短时间内按订betway88娱乐单生产。”

Schuitemaker首席执行官
约翰维恩斯特拉, CEO at Schuitemaker: „Due to the quantity of assembly stations, we need a larger number of cranes on one runway. This makes it all the more important to minimise the shadows that are caused when a crane passes above a workplace, which impacts the ability of our people to concentrate on their work. That is why we decided in favour of Demag V-type cranes, which have an open girder design that allows as much light as possible to fall on the workplaces.“

当公司12年前开始规划今天的大楼时,重点是逐步发展。生产区的预期部分总面积为40000平方米,在准备工作开始扩大生产能力之前,最初用作仓库。约翰文斯特拉:“作为一家家族企业,我们总是从长远的角度考虑。这就是为什么我们在六年前建造这座大楼时,已经考虑过它以后用作装配车间的原因。”

目标是将农业机械的所有总装活动纳入一条生产线。为此,12号楼(102 x 22米)配备了四个预装配站和七个总装工作场所。出于质量和交付性能方面的原因,Schuitemaker非常重视内部生产。从底盘和计量辊到侧板,大部分部件都在现场制造,并通过叉车运输到总装线进行安装。betway88

尽可能分散地提供必要的提升能力

然而,为了根据需要定位零件,该公司完全依赖起重机系统,这些系统有助于移动和安装部件,其中一些部件重达数吨。有利于起重机系统的决定基于“尽可能多的起重能力,尽可能分散”的原则:

  • 通过精确定位结构元件为装配工人提供支持
  • 大体积和重型部件可选择串联使用
  • 起重机与建筑结构的光学集成符合人体工程学要求

上述最后一项对起重机系统的选择起着决定性的作用。由于工作仅涉及装配活动,起重机应尽可能保持低调,起重机移动对照明情况的任何影响应尽可能低,以供其下方的工作区域使用。约翰文斯特拉:“由于装配站的数量,我们需要在一个跑道上有更多的起重机。这使得将起重机经过工作场所时产生的阴影降到最低变得更加重要,因为这会影响我们员工专注于工作的能力。这就是为什么我们决定支持Demag V型起重机的原因,这种起重机采用开放式梁设计,可以让尽可能多的光线落在工作场所。”必威体育

9台EVKE V型单梁起重机在102米长的起重机跑道上运行,该跑道安装在6.80米的高度上。起重机的跨度为21.125米,每台起重机配备一台6.3吨Demag绳索起重机。Schuitemaker的装配人员通过无线电控制起重机,使其与负载保持安全方便的距离。只需按下一个按钮,六台新起重机就可以串联操作,以安全地定位重达10吨的重型机械。必威体育

农业机械配件由起重机定位安装。
农业机械配件由起重机定位安装。

起重机的咨询、规划和安装由位于Den Haag的van Den Berg Transporttechniek公司提供,该公司多年来一直是Demag起重机和起重机在荷兰和比利时的代理。必威体育

部件转动180度的装配

Assembly of a wagon starts with the platform, which is initially delivered on its back and deposited at the first assembly station by a tandem crane arrangement. After the axles have been installed, two cranes pick up a motor-driven turning jig, which was developed and manufactured by Schuitemaker itself. It is used to turn the vehicle chassis by 180 degrees. The tyres are then installed and the unfinished wagon is attached to an electric towing device, which transports it from one assembly station to the next.

Schuitemaker
The chassis is turned by 180 degrees after the axles have been installed.

“除了经济方面,精确地搬运要安装的部件对于选择起重机设备也很重要”,他解释道约翰维恩斯特拉. “侧板的安装就是一个例子。插入这些元件的过程可能有好几吨重,涉及到最小公差。我们的团队管理这些任务时,V型起重机没有任何问题。而就吊车梁重量较轻而言,不言而喻的是,我们还可以通过使用输出功率较低的电机来节约能源。”

V型起重机为焊接机器人服务

舒itemaker还对上游生产区进行了大量投资。在生产车间2安装大型焊接机器人是未来发展的重要一步。机械工程公司正逐步将所有钢结构制造,如平台和底盘,集中在这一领域。

约翰维恩斯特拉:“This installation clearly makes us a leader in terms of speed and efficiency. The use of carbon as a material for the superstructure has enabled the weight to be cut by 7,500 kg. Thanks to this, we save a significant amount of time and energy, since the welding gantry enables us to cut throughput times by up to 80 per cent.”

在2号间隔的这一段,两台跨度为26 m的V型起重机用于将长度达12 m的大型零件从准备区运输到焊接龙门架,并在零件焊接后运回油漆车间。由于零件的长度和重量高达10吨,起重机大多是串联使用的。由于无线电控制,工作人员还可以在与负载保持安全距离的地方操作设备。

Smooth crane assembly – fast production ramp-up

The total of eleven Demag V-type cranes were assembled and commissioned by van den Berg within four weeks. Consequently, the linear production process was able to start without delay. The service department of the Demag agent van den Berg ensures that the new cranes will also have a high level of availability in the future. The service technicians have been maintaining the cranes and hoists at Schuitemaker for many years – also including some Demag chain hoists that were installed when production began at the Rijssen location in 1965. The service team is responsible for a total of some 110 installations, which are regularly serviced and maintained.

提高生产和交付性能betway88

With the restructuring of its assembly line and the installation of the large portal welding robot, the agricultural machinery manufacturer Schuitemaker has taken an important step for future growth.

约翰维恩斯特拉:“例如,在汽车工业中,纯订单式生产不能用于农业部门,因为订单是在很短的时间内发出的。我们必须根据季节性需求迅速为客户制造和交付机器。由于我们新的制造结构,我们可以更快地满足这一需求,并利用多班次操作的可能性,为进一步提高交货性能提供机会。V型起重机在人体工程学和安全性方面为我们的装配团队提供支持,这使我们能够以确定性和可靠性达到我们的高质量标准。”betway88