Pfaff SHE Series User Manual

GB
Worm gear screw jack SHE type1 and type2
High-performance screw jack HSE type1 and type2
T13.01.000.0000.0003
2019/04 Rev. Index E
Subject to technical modifications Design changes under reserve Sous réserve de modifications techniques !
11
General information
6 Worm gear screw jacks, standard version
Feature Description
Rotating worm wheel Ba1
Translation thread or ball screw nut integrated into the worm wheel
Lifting screw Ba1
Trapezoidal thread, buttress thread, multiple trapezoidal thread, ball
screw
Rotating screw Ba2
From worm gear propelled trapezoidal, buttress, or ball thread spindle.
Lifting travelling nut Ba2
Travelling nut conducts the lift movement.
SHE: Worm gear with grease lubrication
HSE: Worm gear with oil lubrication
Thread spindle with grease lubrication
Suitable for an ambient temperature
-10 to +40 °C
If the temperatures deviate from these specifications, the design must
be adapted by our technical office.
6.1 Safety worm gear screw jacks
The worm gear screw jacks are equipped with a long safety nut, and an electric nut breakage monitoring
system for lifting tables acc. to EN 1570-1, elevating work platforms acc. to DIN EN 280, vehicle lifts acc. to
DIN EN 1493 and stages and studios acc. to BGV C1/DIN56950-1.
The manufacturer is responsible for the risk assessment of the entire system.
Feature Description
Safety nuts
To protect against falling of the load in case of wear of the carrying nut.
Visual wear indicator
For monitoring the wear of the carrying nut
Electrical nut breakage monitoring
For monitoring the carrying nut for breakage
Self-locking/self-braking spindle
option
On lift devices that must safely brake in the event of the failure of a
connection element, worm gear screw jacks with self-locking or self-
braking screws are required
Speed monitoring option
Standstill monitor option
To monitor the synchronisation of all screw jacks or the standstill of a
screw jack in one lifting system with several worm gear screw jacks.
Load monitor option
Electronic load monitor for monitoring the power of the drives
The selection of self-locking or braking options must be made on a case by case basis, taking into
account the complete system. Depending on lift speed and positioning accuracy, additional brake(s) will
be required.
Safety nut (wear monitoring)
2
3
4
5
1
1 Screw
2 Worm wheel
3 Worm
4 Housing
5 Sheath tube
6 Travelling nut
2
3
4
5
1
6
2
3
4
1
6
2
3
4
1

Pfaff SHE Series Specifications

General

Brand	Pfaff
Model	SHE Series
Category	Jacks
Language	English