Project report SWEG Südwestdeutsche Landesverkehrs-GmbH

Product: 
Stationary roof work stand with electrical height adjustment and manual extensions for the maintenance and repair of trains

Customer: 
SWEG Südwestdeutsche Landesverkehrs-GmbH

SWEG Südwestdeutsche Landesverkehrs-GmbH, headquartered in Lahr (Black Forest), is a transport company that plays an important role in local public and freight transport in southwest Germany. It maintains about 470 buses, 180 rail vehicles and 6 diesel locomotives for freight transport, which are maintained and repaired in several depots.

A customised working platform

For the transport company Hohenzollerische Landesbahn of SWEG in Gammertingen, KRAUSE has developed a roof work platform with a gap dimension of zero, which has been exclusively adapted for "Lint 54" trains of the series 622. This offers the employees of SWEG safe access to the roof areas of the trains, especially for the maintenance of the air conditioning systems. The solution by KRAUSE reduces the downtimes of the trains enormously, while ergonomics and safety at the workplace increase significantly. An investment that quickly pays for itself and sustainably increases efficiency.

The 55 m long roof work stand runs through two maintenance halls which were connected with each other by means of a breakthrough. Due to this narrow space between the two halls, the construction had to be adapted to the existing space conditions with centimetre precision. To realise this, the entire hall was measured using a 3D scanner. The 3D measurement makes it possible to integrate special solutions even in existing hall constructions with little space and special conditions (supporting posts, machines or systems).

Based on this measurement, the KRAUSE designers were able to effectively use every available centimetre in order to achieve the maximum usable area of the working platform and at the same time ensure the accuracy of fit.

Increased efficiency and work safety

The trains enter the platform from one side. The working platform can be raised electronically at the front and rear to allow the trains to enter. After the train has reached its final parking position, the extensions can be docked to the body of the trains in twelve-metre-long elements by means of retractable hand cranks. The built-in impact protection protects the paint and enables the direct connection of the roof working area to the vehicles. In order to ensure the safety of the employees and to avoid possible damage by industrial trucks, the height adjustment including the support posts was equipped with a protective grille.

The use of the roof work platform significantly increases the effectiveness of the maintenance work that needs to be done, as the roof area of the entire train can be reached with a work platform. Permanent repositioning of alternative access points is thus completely eliminated, which saves time and thus also costs. The activities are easier to manage and the number of ascents and descents is reduced to a minimum. Furthermore, the KRAUSE solution significantly increases work safety, which is reflected in less downtime of the employees and thus also optimises the overall performance of the maintenance stand.

Since the overall width of the roof work stand only allowed a working area of one metre when the extensions were retracted, it was decided to install four storage balconies for tools, materials and spare parts. These were installed on both sides of the working area and serve as a storage surface during the train change, eliminating the need to carry working materials up and down.

By focusing on a single train model, workers are protected in the area of the joint between the two railcars with a permanently installed railing. Should another or a new train model be maintained in the roof work stand at a later date, it can be quickly and easily converted due to the practical KRAUSE modular design.

This is what our customer, SWEG Südwestdeutsche Landesverkehrs-GmbH, says:

 

"We would like to thank KRAUSE for the good cooperation and
support during the entire implementation period of the project.
Despite difficult spatial initial conditions a roof working platform
was installed, which fully meets our technical
and safety-relevant requirements".

Maximum safety during ascent and descent

The two centrally placed access stairs were equipped with grating steps of slip resistance class R13 and provided with an access guard. Two emergency ladders at the ends of the roof work stand provide further safety for the employees. The platform covering on the roof working platform was made of grooved aluminium, the extensions of aluminium hot-dip galvanised sheet. In general, all step and platform coverings can always be adapted to the customer's needs.

The work surface was equipped with power and compressed air connections, and additional lamps underneath the work surface provide sufficient illumination of the workplace. A signalling system supports the train drivers when the trains enter.

A train reaches the maintenance hall
Entry of the train into the roof working stand
The train in final parking position of the maintenance stand
The extensions are docked to the body of the trains with zero gap dimension
The side extensions in parking and working position
The use of the roof work stand significantly increases the effectiveness of the maintenance work that needs to be done, as the roof area of the entire train can be reached with a single work platform.
By focusing on a single train model, employees are protected in the area of the joint between the two railcars with a permanently installed railing
The storage balconies were placed on both sides of the work area and serve as storage space during the train change, eliminating unnecessary carrying up and down of work materials.
The two centrally placed access stairs were equipped with grating steps of slip resistance class R13 and provided with access protection
Two emergency ladders at the ends of the roof work stand provide further safety for the workers

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24.09.2024 - 27.09.2024

InnoTrans 2024

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