Annask, RaikoVunukainen, Kardo2021-03-172021-03-172020https://dspace.tktk.ee/handle/20.500.12863/2805Lõputöö autori ülesandeks oli valmistada etteandelaua lukustussüsteem mis lihtsustab hakkurijuhi opereerimist hakkuriga ja mida saaks juhtida hakkuri tõstuki kabiinist. Esmalt tutvustati hakkurit millistest komponentidest koosneb ja milline on hakkurit käitav mootor. Lukustuse asukoha valikult lähtuti, et lukustus ei segaks igapäeva remont tööde teostamist. Asukohaks valiti vana lukustusega sama asukoht. Edasi teostati vajalikud mõõtmised piiritlemaks lukustuse suuruse. Etteande laua mõõtmisel saadud lähteandmetega arvutati välja etteande laua lükkejõud lukustuse suletud asendi korral. Tehti materjali võrdlus leidmaks sobivaim materjal lukustuse valmistamiseks. Saadud lükkejõu suuruse põhjal projekteeriti Autodesk inventori keskkonnas esimesel korral lukustus mille varutegur oli ainult 1.2 mis jäi madalaks. Teisel katsel muudeti lukustuse disaini ja saadi varuteguriks 5,7 mis on piisav kasutamisest tekkivatele kasutusvigadele. Lukustuse lihtsaks paigaldamiseks ja eemaldamiseks projekteeriti lukustus mida saaks ühendada polt liitega hakkuri vaheraami külge. Juhtimiseks tõstuki kabiinist ühe nupule vajutusega lukustussüsteemi paigaldati külge pidurikamber mis on ühendatud veduki õhusüsteemiga. Välja toodud lisakomponendid lisa ohutuse tagamiseks lukustuse kindlaks sulgemiseks. Lukustuse valmistamisel lõikas autor ise käsitsi detailid välja millega tekkisid detailidel mõõte vead mida tuli parandada. Töö tulemuseks on valmistatud lukustussüsteem mis paigaldatakse puiduhakkuri Heinola külge.The topic of the dissertation chosen by the author is the design of a mobile wood chip feed table lock. The aim is to improve the operation of the chipper driver with the machine by designing an automatic locking system. The locking system is installed on the Heinola mobile wood chipper. The chipper has been constantly redesigned and improved over the years. To unlock the old lock, the chipper driver must make excessive movements. Climb into the truck cab to lift the truck mast. The mast of the truck rests on the feed table. Move down from the truck cab to the lock at the rear of the tractor and manually remove the locking bar. Move back to the truck cab and then start work. This must be done by the chipper driver every other day when refueling and moving in normal traffic. In connection with this, the author came up with the idea to design a locking system that can be opened and closed with the push of a button. In the first part of the thesis, the components of the wood chipper heinola and the engine driving the chipper are introduced. . The location of the lock was chosen so that the lock would not interfere with the performance of daily repair work. The same location as the old lock was selected. The same section describes the measurements made on the feed table to calculate the force in the closed position and the calculation procedure performed with the source data. The choice of material compares the selected materials and selects the best one for the lock. The second part introduces the design structure in the autodesk inventory environment and the lock designed according to the calculated amount of force that would withstand a given force. The lock designed for the first time did not meet the requirements. The second time the design was changed and made compliant. Additional components are described that provide additional security for the lock to be securely closed. The location of the lock was chosen so that the lock would not interfere with the performance of daily repair work. The same location as the old lock was selected. The third part introduces welding technology and lock making. The author's hand-cut details caused measurement errors that needed to be corrected. The task of the author of the dissertation was to prepare a feed table locking system that simplifies the operation of the chipper driver with the chipper and which could be controlled from the cab of the chipper truck.Transport--Automotive Engineering--Fundamentals of Motor Vehicle DesignTransport--Autotehnika--Mootorsõiduki konstrueerimise alusedAutotehnikaAutomotive Engineeringthesis