73
73
Fig7.1 Mast
Fig7.1 Mast
1.
1. Outer
Outer mast
mast
4.
4. Tilt
Tilt cylinder
cylinder
7.
7. Lift
Lift bracket
bracket
2.
2. Inner
Inner mast
mast
5.
5. Load
Load backrest
backrest
8.
8. Fork
Fork
3.
3. Lift
Lift cylinder
cylinder
6. Lift
6. Lift chain
chain
7.1 General
7.1 General description
description
The lifting system is the type of lifting and descending vertically with the two-stage
The lifting system is the type of lifting and descending vertically with the two-stage
rollers. It consists of the inner mast, the outer mast and the lift bracket.
rollers. It consists of the inner mast, the outer mast and the lift bracket.
7.1.1 Inner and outer mast
7.1.1 Inner and outer mast
The inner and outer masts are welded parts. The bottom of outer mast is connected
The inner and outer masts are welded parts. The bottom of outer mast is connected
with the drive axle
with the drive axle through supporting. At the outside middle of outer mast,
through supporting. At the outside middle of outer mast, it is connected
it is connected
with the frame by
with the frame by the tilt cylinder. The mast can be tilt
the tilt cylinder. The mast can be tilt forward and backward by operating
forward and backward by operating
the tilt cylinder. The outer mast is made of C-shaped channel and main rollers and side
the tilt cylinder. The outer mast is made of C-shaped channel and main rollers and side
rollers are assembled on the upper part of i
rollers are assembled on the upper part of it. The inner mast is m
t. The inner mast is made of J-shaped channel
ade of J-shaped channel
and there are main rollers and side rollers at the bottom of it.
and there are main rollers and side rollers at the bottom of it.
Notice:
Notice:
Please pay more regard to safety when maintaining the main rollers
Please pay more regard to safety when maintaining the main rollers and side
and side
rollers on the upper of outer mast.
rollers on the upper of outer mast.
7.1.2 Lift bracket
7.1.2 Lift bracket
The lift bracket moves up and down smoothly along the channel of the
The lift bracket moves up and down smoothly along the channel of the inner mast by
inner mast by
the main rollers. The main rollers mounted on the main roller shafts and blocked by snap
the main rollers. The main rollers mounted on the main roller shafts and blocked by snap
rings. The main roller shafts are welded on the lift bracket. The side rollers fitted on the lif
rings. The main roller shafts are welded on the lift bracket. The side rollers fitted on the liftt
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