Allis-Chalmers MA-150, Инструкция

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PART 3 - STORED ENERGY OPERATOR
3.1 DESCRIPTION OF OPERATOR (Fig. 4)
The stored energy operator consists of three systems:
{a) the driving
system, (b) the spring 1 inkage, and (c) the 4-bar closing 1 inkage, The
systems are disengaged from each other except while performing their
specific function; thus, the driving system and spring 1 inkage are
completely free of each other except when the spring 1 inkage is reset
and ready to be charged. Similarly the spring 1 inkage and closing
1 inkage are free of each other except during a closing operation.
3.1 DR IV ING SYSTEM
The driving system consists of a gearmotor driving a p1n1on (4-2)
which, in turn, drives two spur gears (4-3) . A free-swinging crank
(4-4) is mounted on each spur gear shaft; it is driven by a pin (4-5)
fastened to the spur gear; and it drives the spring 1 inkage.
3. SPR ING LINKAGE
This system consists of four closing springs (4-6) , two Jinks (4-7) ,
two links (4-9) , one link (4-10) , two links (4-11) and crank {4-12) .
When the
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inkage is reset, the springs can be charged by cranks (4-4)
driving the rolls (4-24) fastened to 1 ink (4-10) until 1 inks (4-9 and
4-10) go over toggle. At the start of this operation, J inks (4-9)
will be in tension, allowing a gap between latch (4-13) and its rol
I
(4-19) . However, part way through the charging operation, as the
springs are being charged, the action of roll (4-19) coming against
latch (4-13} will be heard. The action of
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inks (4-9 and 4-10) going
over toggle wil I be heard at the end of the charging operation.
Releasing closing latch (4-13} wil 1 free the closing springs to drive
the breaker closing 1 inkage (see below) . During this operation, the
spring charging 1 inkage remains over toggle until near the end of its
stroke when the toggle is broken by crank (4-12) striking the kick-off
screw (4-32) . The spring
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inkage immediately resets allowing the
breaker closing 1 inkage room to reset when tripped.
3. 4-BAR BREAKER CLOSING L INKAGE
This system consists of two 1 inks (4-20) , two 1 inks (4-21) and arm
(4-22) .
It is always free to operate in any of its functions as it is
not secured to the spring charging 1 inkage.
In the closing operation the spring charging 1 inkage drives toggle roll
(4-15) over toggle against stop (4-59) , thus clos'ing the breaker through
arm (4-23) . Depressing latch (4-27) during a closing operation prevents
the breaker from closing, thereby making it trip free.
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