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Electrical IEC Testing Equipment Impact Durability For Hammer IEC6074-2-6
Product information:
Impact durability test system for hammer is suitable for the
durability test of the electric tool under 3KW. This tester meets
the requirement of IEC6074-2-6:2003 standard. It is the ideal test
equipment for professional testing organizations and electric tools
manufacturers.
The electric hammer no-load life test and durability test bench is
according to the standard requirement IEC6074-2-6, Figure 103,
loading electric hammer or electric drill, to make it intermittent
operation, test electric hammer or electric drill whether it is
possible to occur substandard requirements of the electrical and
mechanical hazards in normal use.
Test principle and structure:
No-load operation test: Rotary hammers with “drill only mode” are
operated at no-load with the impact mechanism disengaged for 12 h
at a voltage equal to 1.1 times the rated voltage, and then for 12
h at a voltage equal to 0.9 times rated voltage.
Each cycle of operation comprises an “on” period of 100 s and an
“off” period of 20 s, the “off” periods being included in the
specified operating time.
During the test, the tool is placed in three different positions,
the operating time, at each voltage, being approximately 4 h for
each position.
Note; The change of position is made to prevent abnormal
accumulation of carbon dust in any particular place. Examples for
the three positions are horizontal, vertically up and vertically
down.
All hammers, including hammers with drill only mode, are mounted
vertically in a test apparatus as shown in Figure 103 and are
operated at rated voltage or at the mean value of the rated voltage
range, for four periods of 6 h each, the interval between these
periods being at least 30 min.
During these tests, hammers are operated intermittently, each cycle
comprising a period of operation of 30 s and a rest period of 90 s
during which the tool remains switched off.
During the tests, an axial force to ensure steady operation of the
impact mechanism is applied to the hammer through a resilient
medium.
If the temperature rise of any part of the tool exceeds the
temperature rise determined during the test of 12.1, forced cooling
or rest periods are applied, the rest periods being excluded from
the specified operating time.
During these tests, overload protection devices shall not operate.
The tool may be switched on and off by means of a switch other than
incorporated in the tool.
During these tests, replacement of the carbon brushes is allowed,
and the tool is oiled and greased as in normal use.
If the impact mechanism fails mechanically during the test without
causing an accessible part to become live it may be replaced by a
new one.
Structure:
This equipment is composed of three parts, the electrical control
cabinet, the load box and the mechanical device.
1. Electrical control cabinet includes MITSUBISHI PLC, 7 Inch Touch
screen and control panel;
2. Load box includes adjustable voltage 0-250V, with voltage,
current display.
3. Mechanical device as shown in Figure 103, includes 90kg, 180kg,
270kg steel base, including the punch, transfer plate and fixture.
Under 700W,90kg base support, with punch,transfer plate, fixture,
without include the electric control |
700W-1200W, 180kg base support,with punch,transfer plate, fixture,
without include the electric control |
1200-1800W,270kg base support,with punch,transfer plate, fixture, without include the electric control cabinet |
1800-2500W,360kg base support,with punch,transfer plate, fixture, without include the electric control cabinet |
Technical parameters: