Patent Application
20180142443
Although the grader has been used in many different earthworks, for instance, road construction, land escaping and dam construction for a long time, and a number of methods and techniques for spreading and leveling embankment have been developed and are part of the prior art, low efficiency and slowness remained unchanged as its drawbacks. However, this invention handles the problem of time and cost and provides more efficiency as well.
Earthworks, in particular road construction require the employ of the wide range of machineries from heavy to light; such as: bulldozers, excavator and loader for excavation and loading; grader, scraper, roller and sprinkler trucks for leveling; dump trucks for carrying the soil; and busses, minibuses and different cars as a light machine for the transportation of workers.
Low efficiency and slowness of the grader and the roller in comparison with the other machineries which are employed in road construction lead to rising the operation time and the costs of project. The present invention addressed these deficiencies by the distributing, tune-up and leveling machine of embankment which can increase efficiency and decrease the costs of project as well as operation time at any earthwork projects.
Distributing, tune-up and leveling machine of embankment (this invention) is a machine that can fulfill the expectations of contractors and earthworks operators especially in road construction area. This apparatus accelerates the implementation process by eliminating grader and merging the distinct and time-consuming operations which are classified below:
Implementing above operations simultaneously causes to prevent significant costs due to the nonuse of machineries and save time as a key feature.
One of the problems in road construction which puts each project in trouble in terms of timing and cost is grader and roller machinery and providing that is trouble making for contractors. If a contractor wants to buy this machinery, because old used machinery creates high maintenance costs and possibility of numerous stops at work so it is not economically worth, he has to buy the new one, as result he has to spend heavy costs for investments in order to buy above ones. To compensate this cost, contractor has to finish almost many projects for these machines to be in profitability phase.
With current trend of performing projects and necessary time to accomplish these projects, work hours of systems will reach that much which make them to be serviced and as result repairing will cost again. Above problems and several years of work experience in road projects make me find a method for faster implementation of projects. This multi-year effort led to invent this system and machine. This system is based on Vibration, galvanizing and compression of consumption materials seed together in levee layer.
One of the problems in road construction which creates issues in terms of time and cost; is the grader and the roller. Since old used machineries create high maintenance costs and have a high possibility of numerous interrupts in the operations and they are not economical, contractors have to pay heavy costs to buy new ones.
To recover these expenses, they have to finish almost many projects by these machines, while present process of operations leads to the early depreciation of machineries that will entail service and repairing costs. Above problems and several years of experience in road construction projects lead us to create faster and more reliable machinery for implementation of projects.
All materials are uploaded on the front body part of the machine (1) which moves on rake (2) and from there are directed to inlet port (8). Then the materials are carried into the machine by materials driving sole plate (15). The moisture of soil is measured by initial moisture measuring means (4). Then the soil is sprinkled with water by initial sprinkler pipe (6) if the moisture measuring means (4) detects low humidity or lack therefor in the soil.
Materials are mixed with water two times, first by an initial material mixer (3) and finally by a secondary mixer (32) to ensure that the mixture of water and soil has been done well. Entry of materials into the system is controlled by the operator and the incoming materials' controlling camera (7). The mixing operation is also supervised by the operator via an operation controlling camera (16).
Initial aspirator (9) and the secondary aspirator (33) gathers dust created in the mixing operation, this leads to improvement of the operation of both material and operation controlling cameras (7 and 16). Following that, the moisture of soil is measured again by secondary moisture measuring means (5), if the moisture of soil is not optimal; it is sprinkled again by secondary sprinkler pipe (14).
Required water of the machine enters through water tank (11) by water tank inlet (10) and is transferred to the initial sprinkler pipe (6) and the secondary sprinkler pipe (14) by sprinkler engine (13). For better operation and maintaining on the direction coordinates, the system is controlled by GPS (29). The whole operation is controlled by operator inside the driver cabin (12). More importantly, the cabin can also be placed and fixed on the right and/or left side of the machine by rotating its leg.
In this step, moist soil is transferred towards the rake bars (17) by materials distributor (31) and is vibrated to move the soil next to each other and therefore merging them together and creating an even layer of soil. The vibration of rake bars (17) is provided by the rake sole vibrator (20) that is installed on the connection plate of vibrator and sole (21) by vibrator mounting screw (30) and both are installed on rake sole (18) by vibrator and sole connection plate screw (26).
Considering that whole systems is moving forward, so rake bars (17) through creating vibration while passing compress soil and prepare it for pummeling and compacting by leveling sole (19). The vibration and pressure of leveling sole (19) is created either by leveling sole vibrator (34) that is connected to the vibrator and sole connection plate (21) by vibrator mounting screw to connection plate (30) and they are also braced to leveling sole (19) by vibrator and leveling sole mounting screw to connection plate (26).
The eligible height for embankment layer can be provided through two methods: a) manual method, b) computer method.
The power required of this machine is provided out of engine (39). After passing leveling sole (19) from poured layer and soil compression in each other, it can be ensured that layer density of backfill has been provided well and the rest of required density will be achieved by rollers. This machine can be used in all earthwork operation such as rock foil, planning layer, the basis and foundation in road construction projects, landscaping, airports and dams.
Screeding (Layer planning) of width 1 m to 16 m and a thickness of 10 cm to 60 cm
Dimensions of machine in screeding in the smallest size are 1.2 m length, 60 cm width, 70 cm height and in the maximum size are 16 m length, 1.5 m width, 1.3 m height.
Water tank capacity of 1.5 cubic meters to 9 cubic meters depending on kind of the machine.
The monitor of machine is LED and all operations are done touch. Operation can be also controlled by keys in case of customer request.
Installed cameras are with HD quality and of the best brand available in the market with the highest resolution.
The machines with screeding in width from 4.5 meter and higher, have two leveling plates standardly and in case of customer request, small machine can also have two leveling plates.
Lifting leveling plates up and dawn can be electrically, hydraulically, manually or the combination of them based on customer request.
System computer saves all done operations and information during the process of screeding including the memories of the system cameras, the percentage of initial moisture, the rate of added water, the percentage of secondary moisture, the rate of pressure on soil in order to compressing layers, layer length, width and thickness, longitudinal and transverse profiles of path has been implemented to control the volume of materials which are used during a work shift for proposing to people or authorities.
Operator cabin of system can be moved from right to left or vice versa on rails which are devised behind the machine or by hydraulic arms.
According to required capacity, this machine can have different dimensions and various engines with different powers to be able to meet different kinds of users' needs related to earthwork projects.
