Bosch VLS 3132 H Manual Original página 26

en 26 | VLS 3132 H | Product description
5.8 Description of unit
5.8.1 Overview
VLS 3132 H is a double scissor lifting platform with
electro-hydraulic drive. Fig. 2 shows the principal com-
ponents.
Fig. 2: Components
1 Lifting platform
2 Operating unit with hydraulic unit
3 Connecting cable duct
5.8.2 Lifting platform
Fig. 3: Lifting platform
1 Access ramp
2 Lifting table
3 Scissor mechanism
4 Hydraulic cylinders
5 Loose bearing
6 Slider
7 Fixed bearing
8 Base frame
The lifting platform is mounted on two base frames
(8). Each base frame features a scissor mechanism (3),
which can be raised and lowered via hydraulic cylinders
(4). Each scissor mechanism carries a lifting table (2),
which acts as the load-bearing element.
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5.8.3 Lifting mechanism
Two hydraulic cylinders are attached to each scissor
strut. When the hydraulic cylinders extend, the scissors
move up, thereby raising the lifting table.
The synchronized movement of both sides is ensured as
follows:
R
Synchronized movement is monitored electronically
via a light barrier (optional).
R
The two hydraulic cylinders of each scissor strut are
powered by separate hydraulic circuits. The hyd-
raulic cylinders in a circuit are connected in series
(cylinder follow-up principle). See Fig. 4
Fig. 4: Hydraulic synchronization control
P1, P2 Hydraulic cylinders
A, B Hydraulic circuits
5.8.4 Access ramps
Fig. 5: Access ramp
1 Stop lever
The access ramps help the vehicle to drive on and off
the lifting table. If required, the access ramps can be
folded up and locked in place to extend the lifting table.
Robert Bosch GmbH