SIEMENS
FLENDER Standard Couplings
Technical Information
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Siemens MD 10.1 · 2015
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Corrosion protection
Depending on the environmental conditions, suitable corrosion
protection must be specified for the coupling. Unless otherwise
specified in the order, steel and cast iron surfaces are shipped
with a simple preservative.
Ambient conditions
Because of the environment, the coupling has to meet a large
额外要求的数量。耦合必须是适合的 -
able for use in a potentially explosive environment as for use at
a high or low ambient temperature. The environment may be de-
fined as chemically aggressive or be subject to laboratory con-
食品生产的区分或要求。
ATEX and EC Machinery Directive
Wherever a potentially explosive environment cannot be ruled
out, the machinery used must meet special conditions in order
to prevent the outbreak of fire as far as possible. Within the Eu-
ropean Union, Directive 94/9/EC applies to these applications.
This directive, harmonizes the individual states' legal require-
预防爆炸的方法，并清楚地定义了程序
dure for checking and circulating machines and parts. Whether
或者不使用机器在潜在的爆炸气氛中
the manufacturer is required under EC Machinery Directive
2006/42/EC评估并尽可能防止危险
which may arise from his product.
The operator has an obligation to ascertain whether an environ-
可能具有爆炸性。有关此的详细信息
Directive 1999/92/EC.
制造商负责确保产品为
safe as defined in the EC Machinery Directive and conforms to
Directive 94/9/EC if the EX requirement is specified by the oper-
ator.
驱动列车主要包括单个设备
which are put together to form a subassembly. If the individual
pieces of equipment, such as motor, coupling, gear unit or
driven machine conform to Directive 94/9/EC, the manufacturer
of the overall unit can limit the risk assessment to the additional
由不同个体的组合引起的危害
pieces of equipment. The hazards which can arise from the indi-
相关的供应评估了各种设备
ers。
The Directive 2014/34/EU of the European Parliament and of the
Council of 26 February 2014 on the harmonisation of the laws of
the Member States relating to equipment and protective systems
旨在用于潜在爆炸性气氛中的
1994年3月23日的指令94/9/ec，其作用
20 April 2016.
以下适用于此手册中显示的产品
潜在explosi适合预期用途ve atmospheres:
•
Products placed on the market before
20 April 2016 meet the
requirements of Directive 94/9/EC.
•
Products placed on the market from
20 April 2016 meet the re-
quirements of Directive 2014/34/EC.
耦合序列适用于潜在爆炸性的连接
vironments are marked with EX in the catalog.
FLENDER couplings are to be rated as components accord-
ing to the new EC Machinery Directive 2006/42/EC. There-
最重要的是，西门子没有发布一份融合声明
this products.
Overload conditions
Overload conditions are operating conditions that go beyond the
limit loads of the coupling.
Overload conditions may occur under abnormal operating con-
ditions, e.g. drive blockage, short circuit or supply deviations, as
well as under normal operating conditions, e.g. during starting
or breaking. Particularly in the case of high mass moments of
inertia of the driven machine, torques that are a multiple of the
电动机启动扭矩可能在直接启动期间有效 -
ing or star-delta starting.
Overload conditions may damage not only the coupling but also
the entire drive train.
Overload conditions can frequently be prevent with special de-
sign measures. SIRIUS soft starters or SINAMICS frequency
converters are suitable for considerably reducing starting
torques of asynchronous motors. If drive blockages and over-
loads of the driven machine cannot be ruled out, torque limiting
SECUREX couplings can prevent damage to the drive train.
耦合behavior under overload conditions
耦合behavior under overload where the torque is consider-
相关耦合的使用极限非常高于相关的限制
mined by the engineering design of the coupling series.
The ZAPEX, ARPEX, N-EUPEX, RUPEX and N-BIPEX coupling
series can withstand overloads until the breakage of metal parts.
这些耦合系列被指定为故障安全。耦合
types which can withstand overload, i.e. fail-safe types, are used
e.g. in crane systems. In case of coupling breakage due to over-
loads, the splintering metall parts may cause injury to persons
and property damages.
N-Eupex DS，ELPEX-B，ELPEX-S和ELPEX耦合SE-
ries throw overload. The elastomer element of these couplings is
irreparably damaged without damage to metal parts when sub-
jected to excessive overload. These coupling series are desig-
nated as non-fail-safe. The types that fail can be fitted with a fail-
安全设备。该组件使紧急操作，
even after the rubber element of the coupling has been irrepara-
布莱损坏了。
Fludex系列的流体耦合可承受A的负载
short time. Persistent overload causes the FLUDEX coupling to
heat up beyond limits, causing the fuse to operate and so emp-
耦合和干扰力矩的交易nsmission.
Torsional and bending vibrations
On drives which are prone to torsional and bending vibrations,
measurements or calculations such as natural frequency calcu-
lations, torsional vibration simulations or bending vibration cal-
有必要。
The drive train may, depending on complexity, be regarded as a
two-mass vibration-generating system or N-mass vibration-gen-
ERATION系统。振动产生的质量由
the rotating bodies and the couplings by the coupling stiffnesses
and shaft stiffnesses. The effect of torsional vibration excitations
on the behavior of the system is calculated.
Torsional vibration excitations may occur during the starting of
an asynchronous motor, during a motor short circuit or in diesel
engine drives. Bending vibrations may be critical if the coupling
保持平衡和/或以接近的运行速度
临界速度。
计算扭转振动所需的细节是指示
fied in the coupling catalog:
•
Dynamic torsional stiffness
•
Damping (specification of the damping coefficient
ψ
or Lehr's
阻尼D =
ψ
/4
π
).
•
Mass moment of inertia of the coupling halves.
©Siemens AG 2015