联轴器
 
SPIDEX联轴器
 
DENTEX联轴器
 
内燃机(发动机)用联轴器
 
轮胎联轴器
 
膜片式联轴器
 
扭力限制器
 
套筒式联轴器
 
蛇簧式联轴器
油箱
钟罩
 
钟罩
 
钟罩减震降噪元件
液压控制元件
 
液压过滤元件
 
机械电子控制开关
 
泵和马达
冷却器
 
油/风冷却器
 
油/水冷却器
液压工作站

钟罩


 

MDL电机底脚减震

 

n 适用于标准支架底脚减震

n 适用于水平安装,使用耐油橡胶,可以有效降低噪音和减少震动

 

 

 




KPV系列钟罩

n 用于联接IEC标准及NEMA标准电机和液压泵

n 电机轴和泵轴自对中设计,产品尺寸按照VDMA24561标准制造,可用于重载

n 材质:铝合金。重量轻,内部组织密,强度好,散热性好

n 循环冷却,无需额外散热设备,结构紧凑,安装方便。可在野外无电,无水的环境下工作

n 结构组成:压铸铝合金钟罩/冷却模块/带联轴器的风扇叶轮

n 测试压力:根据D1IN50104标准,标准静压力26bar,最大可达40bar

 

瑞吉产品选型软件RAJAWIN及3D万维成型软件支持

NRS降噪专用带

 

n 可降低噪音达50%,通用改型工具包,安装方便简易

n 防撕裂,并能在-零下40120摄氏度之间工作

 

 

 

 

Standard bellhousings available on today’s market are generally made of metal. Rising costs have meant that the cast steel originally used has now been replaced by aluminium. To save material, the wall thickness – especially in the case of cast aluminium – has been reduced more and more, with the load level remaining constant.

This reduced wall thickness means that there is only minimal absorption of the noise made by the coupling in the bellhousing. Unlike their cast steel counterparts, the more lightweight aluminium bellhousings have comparatively poor damping characteristics.

The pulsation of hydraulic pumps generates very strong vibrations that are not damped sufficiently by an aluminium bellhousing. Moreover, at rigid bellhousings there is no isolation of mechanical vibration between the electric motor and the hydraulic pump due to the lack of damping characteristics.

Vibration studies have revealed that airborne and structure-borne vibration is at frequencies where human hearing is at its most sensitive. Under certain unfavourable circumstances, the thin-walled aluminium bellhousing amplifies the running noise of the pump even more; in these cases, the bellhousing resonates in sympathy, similar to a real bell, which can then lead to an additional increase in oscillation amplitude.


The NRS-solution

In line with EC Directive “Noise“ (2003/10/EG), the planned retrofitting measures are intended to resolve acute problems caused by poor soundproofing and vibration damping, including problems
that occur in hydraulic apparatus already in use. The best noise level reductions were achieved using the NRS System.


The best noise level reductions were achieved using the NRS System.
The NRS System is:

  • a newly-developed 3D “High Density- “ polyester structure
  • tear-proof & temperature-resistant from -40° C to +120° C
  • resistant to most currently available hydraulic oil types
  • easy to fit and 100% recyclable
  • available in 4 different system widths and 3 lengths for retrofitting or as original equipment.

 

With the NRS System, it was possible to reduce the total noise emission level of a cast aluminium bellhousing in critical frequency ranges by more than 10 dB. This reduction is clearly audible to the human ear. The graph shows examples of frequency ranges of a standard cast aluminium bellhousing and a version with NRS.

 

R/RV系列标准型

 

  

n 适用于IEC标准电机,NAMA标准电机及部分汽轮机(发动机)与各类液压泵,特殊法兰液压齿轮泵的联接。(可配装IEC电机0.37-315kw及相应NAMA电机)

n 使用高强度铝合金精铸成型, 重量轻,内部组织致密,机械强度高,散热传导性能好.(所有产品结构均带有加强筋和散热设计)

n 可带内嵌式或外法兰连接式减震结构

 

 

材质;铝合金,其中RV系列采用1000-4000吨压机高压压铸成型 重量轻,内部组织致密 强度高 散热性好。R系列采用中低压铸成型,强度高,有GG25材质可选

有内嵌式减震与法兰式减震可选

瑞吉产品选型软件RAJAWIN及3D万维成型软件支持

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