Power Transmission Components for Uphill Conveyors
Shrink Discs
to connect hollow gearbox shafts with pulley shafts
High Speed Backstops
to prevent reverse motion of conveyor belts
Drum Brakes
for braking and holding of conveyor belts
Tru-Line Flange-Couplings
to connect solid gearbox shafts with pulley shafts
Power Transmission Components for Downhill Conveyors
Shrink Discs
to connect hollow gearbox shafts with pulley shafts
Disc Brakes
for braking and holding of conveyor belts
Control Systems
for controlled braking of conveyor belts
Hydraulic Power Units
to supply hydraulic power to brakes
Pin and Bush Couplings
for elastic connection of solid gearbox shafts with solid pulley shafts on conveyor drives
Cone Clamping Elements
to connect pulley shafts with pulley drums
Tru-Line Flange-Couplings
to connect solid gearbox shafts with pulley shafts
Hydraulic Brakes
for braking and holding of conveyor belts
Power Transmission Components for Bucket Elevators
Shrink Discs
to connect hollow gearbox shafts with solid bucket elevator shafts
High Speed Backstops
to prevent reverse motion of bucket elevators
Freewheels as Overrunning Clutches
to automatically engage and disengage main drives and auxilliary drives
Low Speed Backstops
to prevent reverse motion of bucket elevators
Tru-Line Flange-Couplings
to connect solid gearbox shafts with bucket elevator shafts
Backstops for Belt Conveyors and Bucket Elevators
High Speed Backstops
- High Speed Backstops are located on the 2nd or 1st gearbox reduction shaft and prevent reverse motion of conveyor belts or bucket elevators.
- They are equipped with sprag lift-off X which ensures a wear free freewheeling operation when the backstop is rotating at high speeds with the gearbox shaft. In this state of operation, the backstop works wear-free, i.e. with unlimited service life.
- Maintenance free
- Cost effective
High Speed Backstops with Torque Limiting
- High Speed Backstops with Torque Limiting are used in belt conveyors with multiple drives and prevent reverse motion of conveyor belts.
- They solve the problem of uneven load distribution in multiple drives.
- They are equipped with spraglift-off X which ensures a wear free freewheeling operation when the backstop is rotating at high speeds with the gearbox shaft. In this state of operation, the backstop works wear-free, i.e. with unlimited service life.
- Maintenance free
- The integrated torque limiters protect the gearboxes and backstops from overload by dynamic peak torques.
- Smaller gearboxes can be used without negatively effecting the safety.
- Available with or without controllable release function
- Cost effective
Low Speed Backstops
- Low Speed Backstops are located on pulley or head shafts of gearboxes and prevent reverse motion of conveyor belts or bucket elevators.
- Taconite seals protect the backstop from contamination with dust or dirt.
- Low Speed Backstops allow the removal of the drive unit when the conveyor belt is loaded.
Power Transmission Components for Bucket Wheel Excavators and for Stackers and Reclaimers
Tru-Line Flange-Couplings
to connect solid gearbox shafts with solid pulley shafts on conveyor drives
Pin and Bush Couplings
for elastic connection of solid gearbox shafts with solid pulley shafts on conveyor drives
Shrink Discs
- to connect drive units with hollow shafts to bucket wheels
- to connect hollow gearbox shafts with solid pulley shafts on conveyor drives
Cone Clamping Elements
- to connect pulley drums with pulley shafts
- to connect machine elements with shafts
Brakes
for normal operation and emergency stops in
- conveyor drives
- boom hoist drives
- slewing drives
- bucket wheel drives
Friction & Positive Torque Limiters
- to protect drive units from overload
- heavy-duty series also available
Power Transmission Components for Semi-Automatic Grinding Mills
Emergency Brakes
for braking and securing of ball and grinding mills with up to three brakes per bracket
Power Transmission Components for Crushers
Positive Torque Limiters
to protect drive units from overload
Gear Couplings
for torsionally rigid connection of machine shafts
Cone Clamping Elements
to connect machine elements with shafts
Friction Torque Limiters
- to protect drive units from overload
- heavy-duty series also available
Power Transmission Components for Mine Hoists
Source: Josef Wiegand GmbH & Co. KG
Brakes and Control Systems in Mining Technology
Brakes
RINGSPANN brakes ensure the safe operation of conveyor systems and machinery in the mining industry - whether used as stopping, control, or holding brakes. Thanks to their fast closing time, they ensure reliable protection in an emergency. They also enable controlled deceleration sequences and the safe holding of heavy loads, for example in uphill or downhill conveyors, bucket wheel excavators, stackers & reclaimers, grinding mills, or mine hoists.
Performance features:
- Braking torque range from 10 Nm to over 1.000.000 Nm
- Wide selection of friction lining materials for a variety of operating conditions
- Available as a fail-safe, spring activated brake or as a hydraulically, pneumatically, electromagnetically, or electrohydraulically activated brake
- Hydraulic brakes for heavy-duty applications, including a ready-to-install bracket, hydraulic power unit, piping, and terminal box
Hydraulic Power Units
Hydraulic power units are at the heart of controlled braking processes. In heavy-duty mobile or stationary drives used in mining technology, they reliably supply the hydraulic brake calipers with the necessary pressure and ensure safe braking. Hydraulic power units are custom-designed to meet specific customer requirements. Their operation in combination with RINGSPANN hydraulic brakes is coordinated in close collaboration with the customer.
Performance features:
- High system functionality can be achieved through modular function blocks
- For one or more hydraulic brakes (even in different brake circuits)
- Individual selection of system components based on customer requirements
Brake Control Systems
RINGSPANN Brake Control Systems (BCS) were developed specifically for large overland conveyors, winches, and grinding mills and offer maximum control. This allows for the reliable execution of demanding braking operations with defined braking times, deceleration rates, or braking distances. At the same time, the BCS performs important safety and monitoring functions. It consists of a control and regulation unit as well as a hydraulic power unit. The system is complemented by brakes from the RINGSPANN product line.
Performance features:
- Continuous monitoring of speed, oil pressure, oil temperature, and direction of rotation
- Custom BCS solutions for specific requirements
- Three selectable braking profiles: constant braking time, constant deceleration, or constant belt speed
- Convenient configuration via PC, touchscreen, or potentiometer
- Optionally expandable with a hydraulic accumulator, cold-climate version, or friction pad wear monitoring