Concrete Flooring Robots And Their Specifications

A. Concrete horizontal distributor:

Specification:

Length- 20m (beam: 4m, 7m)

Weight- Main body 3500kg, attachment: 800kg

Pipe diameter-125mmf

Joint drive- Quad-axle hydraulic motor

Operation system- Automatic: 1 lever instrument

Manual: operation for each joint

Control system- Automatic: computer control,

Manual: lever direct control

Sensor- Touch sensor, rotary encoder

Drive power supply-75 KW, 3 phase 200V

Work range- Approximately 1000m

B. Concrete floor leveler:

Specification:

Dimension (LxWxH) - 63 ~ 17.3 x 1.9 x 1.9 m

Weight Approximately- 880kg

Rail width- 67 ~ 17.0m (1m pitch)

Leveling width- Maximum 15.5m

Leveling section - 2 point screw system, length 1.6m

Running speed -Maximum 18 m/min

Traverse speed -Maximum 48 m/min

Operation -Full automatic, level automatic

C. Concrete Surface Treatment Robot:

Specification:

Dimension (LxWxH)- 2200x1490x1230

Weight- 720

Laying capacity- 60 ~ 80m2/hour

Water absorption volume -1 higher/m2

Water tank- 30 l x2

Engine - 750 VA

Vacuum pump -400mm Hg, 100 l/minute

Wireless- 50m

D. Concrete Floor Finishing Robot:

Specification:

Dimension (LxWxH)- 2230x1260x1350mm

Weight- 185kg

Finishing capacity - 300m2(double finishing)

Finishing width -Approximately 2.14m

Troweling revolution- 0 ~ 35 rpm

Running speed- 0 ~ 18 m/minute

Running system- Fully automatic and remote control

*Concrete Flooring Robots And Their Specifications

Concrete Flooring Robots

Concrete floor finishing is one of the most physically demanding jobs in construction. Common features of these robots include operation on soft concrete, requires simple input of work area boundaries, operation in any direction without limits and use steel trowel end effector. The concrete floor robots had several new generations from its original prototype. The modern concrete floor robot can perform precision troweling of concrete floors to tolerance that human cannot achieve as consistently. There has been a successful progress in the field of concrete flooring robot in the past few years.

The intelligent horizontal distributor, which lays concrete while automatically avoiding obstacles such as columns, indicates the future direction of development for construction robots. The twin trowel concrete floor-finishing robot consists of a pair of trowels, each of which rotates four plastering blades, and does not have any mechanism like wheels for its locomotion. However, while leveling the concrete floor, it can move in any direction with the unbalanced friction forces occurring between the trowels and the floor, which are controlled by adjusting the posture of the trowels

Robots In Construction

A robot is a reprogrammable, multifunctional manipulator designed to move materials, parts, tools or specialized devices through variable programmed motions for the performance of a variety of tasks.There is a growing interest in the employment of robots in construction. Robots are employed today in welding, painting, assembling, palletizing, casting and forging, loading and unloading, inspection of products and other industrial task. They are also employed in special hazardous task such as disposal of explosives; work in space, under water or in contaminated environments.

The development of robots has been justified on the grounds of productivity, safety and quality. For the construction industry, a primary motivation has been the prospect of gaining competitive advantage through lower input costs.The benefits of robots in construction are:

· To improve working conditions on site

· To improve the efficiency of the building process, quality, shorten the construction time and reduce cost

· To save construction labor and then reduce the shortage of workers

In construction, robots are designed specifically for building construction and maintenance work. But in the industry every new project is unique in its working nature. Hence robots are fabricated according to a particular task which is to be performed.

Development Of Construction Robots

In 1983, Shimizu developed the world’s first construction robot,”SSR-1”, to spray fire proofing material on steel. This marked the first step to success in robotic technology.

The SSR-1 could successfully appeal the beginning of the future of robots in construction age. SSR-2 was the improved system based on the SSR-1 introducing brand new self mobile wheeled based. Traction system for SSR-1 was abandoned for poor mobility and its induction wire for the guide system was troublesome. Mobile base for SSR-2 facilitated rotation axis and travel distance measuring system, obtaining good performance of accessibility and travel belong girders and beams.

SSR-3 was band new construction robot in every performance and components and became good for hazardous environment and facilitated sensing system to be able to apply almost all sites.

History of Construction Robots

Robotic technology was first introduced in Japan by the US in 1968.The technology has played a significant role in the automation of factories especially automobile and electronic plants. Development in automation and robotics in construction was not much. In 1978, Japan industrial robot association formed a committee to investigate the possibilities of using robots in construction. The researchers who took up the task were from scratch with no prior references to draw upon.

By the early 1980’s, Japan’s construction industries started to lag behind manufacturing and production industries. At the same time, the construction industry began to experience a shortage of skilled workers. Skilled workers were aging and young people labeled construction as “3d” (difficult, dirty and dangerous). The industry began to feel even more pressure to improve its image and work environment.

In 1987, International Symposium for Automation and Robotics in Construction (ISARC) was formed to have an annual symposium on the research and developments in the field. Since then, ISARC meetings have been held annually by the international association for automation and robotics in construction (IAARC) and host countries from around the world.