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▲机动性强的轮式装载机 Ahlmann公司的MZG60新型轮式装载机(通用型)装备有回转平台、伸缩式动臂和舒适的驾驶室。这是第一台以每小时62公里速度行驶的工程机械,它甚至可以在德国的高速公路上行驶。该机装有六缸涡轮增压式柴油机和液压传动装置,全轮驱动。工作时的噪声级为99dB(A),驾驶室内的噪声级为73dB(A)。作业时可采用闭锁式液压气动悬挂装置(仅用于公路干线行驶)、闭锁式差速器和双回路盘式制动系统。该公司还生产静液压行走传动装置的装载机。 ▲减振器 据美国专利介绍,安装在液压马达和执行机构之间的管路内液压减振器,可在机器(挖掘机或装载机)液压系统断开时用来限制压力聚增。液压减速器结构包括用弹簧压紧的延时动作阀,因此减少了伴随液压系统工作而产生的惯性压力聚增现象。关阀时,阀可以切断液压马达的增压线。该阀既可自动控制又可人工操作。
▲ Mobile wheel loader Ahlmann’s new MZG60 wheel loader (universal) is equipped with a swivel platform, a telescopic boom and a comfortable cab. This is the first construction machine to run at a speed of 62 kilometers per hour and it can even travel on the German motorways. The machine is equipped with six-cylinder turbocharged diesel engine and hydraulic transmission, all-wheel drive. The noise level at work is 99 dB (A) and the noise level inside the cab is 73 dB (A). Operation can be closed hydraulically suspended suspension device (only for road traffic), locking differential and double loop disc brake system. The company also manufactures hydrostatic walking gear loaders. Shock Absorber According to the U.S. patent, in-line hydraulic shock absorbers installed between the hydraulic motor and the actuator can be used to limit the pressure buildup when the hydraulic system of the machine (excavator or loader) is disconnected. The hydraulic retarder structure includes a spring-actuated delay-action valve, thus reducing the buildup of inertial pressure associated with hydraulic system operation. Valve, the valve can cut off the pressure motor line. The valve can be controlled automatically and manually.