MBA September/October 2023

Page 27

Friction (Koepe) winding installations

The Electro-mechanical multi-rope clamping and lifting device The use of a Clamping and Lifting Device (CLD) for rope handling significantly simplifies a wide range of maintenance and service work on friction (Koepe) winding installations.

C

LD’s simultaneously clamp all the ropes in one winding compartment without any significant preparation work required beforehand. The CLD is able to pull down in the case of an upwards load, or lift in the case of a downwards load. Introduction The CLD configuration (shown in Figure 1) with electrically driven lead screws and manually engaged rope clamps differs from the automated hydraulic CLD design: • The linear actuation is achieved by utilizing lead screws instead of hydraulic cylinders • The rope clamps are manually positioned and not hydraulically engaged and disengaged • The system sequencing and general operation is manual as opposed to fully automated and monitored. The electro-mechanical configuration has the capability to equal the stroke length of the standard hydraulically actuated CLD design however it boasts a significantly lighter weight (weighing approximately 9 t), has fewer moving parts and no hydraulic components; all resulting in a simple, cost-effective, low-maintenance machine. The suspension beams are designed to engage with all the ropes simultaneously, or one at a time. wheel bearings, winder bearings and rope tread liners. The multi-rope CLD is designed to be located in the headgear below the upper deflection sheaves. The device is self-contained and can be moved from the parked position to the engaged positions and back by means of a geared ‘hand crank’.

Application By using the CLD, suspended loads can be removed from the head ropes and attachments of a chaired conveyance, thus creating slack rope by lifting (pulling upwards) the rope in the compartment opposite the chaired conveyance. Due to the travel range of the upper suspension beam, up to 1 700 mm of slack rope can be created with each stroke. This allows for the servicing of ropes, rope attachments, sheave

Description The manually engaged rope clamps can be inserted in both sides of the suspension beams, thus allowing the CLD to be engaged with both compartments of the Koepe hoisting system. The rope clamping wedge inserts slide in tapered wedges machined into the beam such that the clamping force on the rope is proportionally intensified as the rope pulling force is increased. Refer to Figure 2 for a diagrammatic representation.

Figure 2

The lower of the two identical suspension beams is rigidly mounted in the CLD frame, while the upper beam can be moved vertically between the guides while driven by the lead screws. The

Mining Business Africa | September - October 2023 25


Turn static files into dynamic content formats.

Create a flipbook

Articles inside

Greater Recovery Better Grade

0
page 42

The Role of Cutter Fans in Pump Agitation

1min
page 41

Collision Avoidance for Mining Vehicle Fleet New Wabtec CAS Generation 3 Solution for Level 9 compliance

2min
page 40

Driving Safety, Sustainability and Efficiency

1min
page 39

Electric-operated double Diaphragm (EODD) Pumps for Mining and Industrial Applications

2min
page 38

Electric-operated double Diaphragm (EODD) Pumps for Mining and Industrial Applications A Revolutionary Energyefficient, Low-maintenance, Low Emissions Pump

1min
pages 36-37

TUMA submersible motor line

0
page 35

Submersible Pumps for Mine Dewatering Projects

1min
page 35

Submersible Pumps for Mine Dewatering Projects Clog-resistant, low-maintenance and Long-lasting

2min
page 34

Self-regulating heating cables for process pipes in mining Uninterrupted Process Pipe Performance

4min
pages 32-33

Optimised Steam Generation

2min
pages 30-31

Friction (Koepe) winding installations

2min
pages 28-29

The Electro-mechanical multi-rope clamping and lifting device

1min
page 27

Integrated Air Solutions

1min
page 26

Air Compressor Solutions for Mining Projects Strong Product Line-up Spurs Sales

3min
pages 24-25

Return on Investment of Good Lubrication Management

5min
pages 22-23

Efficient Flow, Robust Valves

2min
pages 20-21

Agitators and Mixers for Mining Projects Mixtec’s role in lithium projects

2min
pages 19-20

Meticulous Planning, Desired Output

6min
pages 16-18

Wearables Revolutionalise Mine Safety

4min
pages 12-15

Tyre Pressure Monitoring System for Small-to-Medium-Sized Operators Revolutionary Tyre Pressure Monitoring

6min
pages 8-11

The High Cost of ‘Clean‘ Coal Power Plants

5min
pages 6-7

A Partnership Powering African Mining

2min
pages 4-5
Issuu converts static files into: digital portfolios, online yearbooks, online catalogs, digital photo albums and more. Sign up and create your flipbook.