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en jämförande studie av skördarkran med och utan horisontellt ledad vipparm
One of the most important components of a harvester is the crane. Most harvester cranes are only possible to pivot (or horizontally rotate) at the crane pillar. Cranab in Vindeln, Sweden, has developed a new type of harvester crane which has an extra pivot point on the outer …
… constructions are available within the department which is well sought. Crane girders used in the industry are exposed to large loads that vary over time that includes instantaneous lifts and the crane girders movement which lead to the phenomenon fatigue in the crane girder and …
… and picks up the whole crew. The submarine rescue ship HMS Belos has a special crane located in the aft of the ship to lift the surfaced DSRV aboard, which then docks on to the on board pressure chambers located below deck. During inspections the aforementioned crane has shown …
… consisting of a wagon with three slots for disc-cutter transport, a foldable crane with a hoist and a lifting tool adapted to the disc-cutters were chosen for further development. Since the concept was quite extensive the decision was made to focus the work around the lifting …
Avseende på injustering av värmedistributionssystemet och installation av värmepump
… of prefabricated steel and concrete elements. All activities that required cranes were recorded and afterwards identified as waste or non-waste. The identification of waste is a part of ”lean production” and its philosophy. In lean production, there are eight defined waste …
En tidseffektivisering av monteringsprocessen inom stål- och betongprefab
… of prefabricated steel and concrete elements. All activities that required cranes were recorded and afterwards identified as waste or non-waste. The identification of waste is a part of ”lean production” and its philosophy. In lean production, there are eight defined waste …
… how much of the time that the machine was working effectively. The number of crane cycles that were used for feeding the machine was also counted.The machines produced between 55 and 168 MWh / h. The cost for comminution was calculated for each machine and it ranged between 14.4 …
… på tyska hittas. För att kunna jämföra resultaten används ett svenskt program CraneGirder EC3 under arbetet. Rapporten innehåller en beräkningsmodell för en valsad profil balk, beräkningar baserades på eurokod ekvationer och föreskrifter vilket var som dimensionerings underlag …
En universell lösning
… the universalization, improvement and further development of a compact crane support frame for flatbed trucks. The work has been conducted at El och Fordonsteknik AB (henceforth EFAB) in Uppsala. The aim of the work has been to shorten the assembly time of the product. By doing …
… the driver strived to accumulate as many stems as possible during each crane cycle and chose to cut taller stems in half so as to make the handling and forwarding of the harvested stems easier. On average, the Vimek harvester required ca 57 effective hours per ha to harvest ca …
… application for the positioning system is to control hydraulic systems, e.g. cranes on mobile units. The user interface consists of a keyboard, an LCD-display and a user menu. Different user menus are developed for the different applications. In the horse feeder system the user …
… was done. From the preliminary study the conclusion that some kind of overhead crane would be suitable for the task was drawn. After that a lift for installing batteries in base stations was designed, built and tested. The tests show that it is possible to minimize heavy lifting …
… about 70 % of the total energy during the building phase. The rest is used by cranes, containers, fan heaters, tools etc. The dominant part of the energy, 98 %, used only for production (portacabins excluded) is used during the frame construction, fit out and finishing work. The …
… 100 % of the stumps were removed. The average withdrawal was 54.7 tonTS/ha. Crane movement was the work phase that took the longest time, 48 % of the total time consumption was due to that phase. The number of soil preparation points was on average 3675 per hectare.
… in a good way. The rolls are heavy and have to be lifted with a construction crane which saves the reinforcement iron workers body. The traditional work with reinforcement involves a lot of heavy lifting and trying work positions for the workers. Therefore is it fairly usual …
