DRILLING MACHINE (SHORT REPORT) 16-10-2015 Hessel Koot - 15031985
P REFACE This report is made in response to a school assignment. This report is a short one of the official report. You can find the official report on my website http://eduweb.hhs.nl/~15031985/slb.html. The official report is written in Dutch. This report is especially written for those interested in this particular type drilling machine. This report could not have been written without help from other students. I would particularly like to thank W.R. Hoogland his detailed comments. Page 1
TABLE OF CONTENTS Summary 3 List of symbols 4 1 Introduction 5 2 Requirements and wishes 6 3 Conclusions 7 Bibliography 8 Appendix 1: Exploded view drilling machine 9 Page 2
S UMMARY In this short report you can read the most important findings about the analysis of a Vendex drilling machine type VD1550. The following paragraphs contain the most important information of the analysis: a list of requirements and wishes for the Vendex drilling machine the conclusions from the main report The main conclusion is that there are many different components in a drilling machine. These components all have different characteristics by itself. These different characteristics should yield together in the final product. This way you get the desired product. Page 3
LIST OF S YMBOLS Symbol Meaning Unit rpm Revolutions per minute Hz m Kilogram kg T Degree Celsius c U Voltage V AC Alternating current - P Watt W Page 4
1. INTRODUCTION The purpose of this report is to analyze the process of creating a unique drilling machine. This is very important because there are many different drilling machines. Our product could be unique when it has the possibility to control the speed of the drill. In addition, it has been found that other drilling machines are quite heavy. So if we create a light drill, compared with the other drilling machines on the market, we can distinguish us even more. The purpose of this product is to make a light electric device which can drill holes with various engine speeds for daily use. This analysis is created by making several assignments. First of all, the problem statement is defined. Then the requirements are drawn up and at the end of this report there will be the conclusion. Page 5
2. REQIREMENTS AND W ISHES Requirements: 23-09-2015 The speed of the engine must be between 0 and 2500 rpm. On the drill you must have the possibility to set the speed by means of a knob. The drilling machine must be lighter than 1,5 kg. The drilling machine must be turned on or off by means of a push button. The drilling machine must have a button which will keep the drill on even when you don't push the on/off button anymore. The drilling machine has to be replaceable and that has to be done with a special key. The drilling machine must have a button which can make the chuck go left or right. The drilling machine must be turned off when she's making contact with water. The drilling machine cannot be warmer than 40 c. The drilling machine must have a European plug. The drilling machine must work on 230 V AC. The drilling machine must not consume more than 500 W. The drilling machine must drill through 10 mm steel. The drilling machine must drill through 10 mm concrete. The drilling machine must drill through 25 mm hard wood. The drilling machine must drill at least 1000 h before it needs any maintenance. 06-10-2015 The drilling machine must be shorter than 40 cm. The drilling machine must be less than 20 cm high. The drilling machine must be less than 8 cm thick. The drilling machine must have a cord of at least 5 m. Wishes: 23-09-2015 Drilling machine with a maximum speed higher than 2500 rpm. Drilling machine that drills through more than 10 mm steel. Drilling machine that drills through more than 10 mm concrete. Drilling machine that drills through more than 25 mm hard wood. Drilling machine that uses less than 500 W. Drilling machine that is lighter than 1,2 kg. Page 6
3. CONCLUSION The purpose of this product was to make a light electric device which can drill holes with various engine speeds for daily use. This can be done because of the analysis that is made. First of all, the drilling machine must be light. To ensure this, thermosetting plastic is the best choice. This kind of plastic won't be effected by the heat that is produced by the electric motor. In addition, there are many transmissions in the drill machine by means of gears. The will be a lot of power on these gears and also on the housing but despite that they should stay in the same place. That is why it is important that the material is strong enough to withstand the forces. Thermosetting plastic is strong enough and is therefore suitable as housing of the drilling machine. For the energy supply, it is convenient to use a electric plug. The electric motor must get enough power to keep working. That is why it is more convenient to use a electric plug instead of a battery. As a result, the customer won't have the problem that the drilling machine ran out of power after 3 minutes of intensive drilling. Because the drilling machine has to be used in many places it is important that the length of the cord is long enough. The length of the cord is 6 meters so you can use him in all places. The drilling machine with electric plug is made according to power-class 2. This means that these devices are double isolated or that these devices have a strong housing. Besides the transformer, the chuck must have a defined speed and the chuck need to run in 2 different directions. The easiest way to do this is to make a small wheel on the push button to enable and disable the drilling machine which allows you to adjust the speed of the drill head. To determine the direction of the chuck, it's the best way to make a lever above the push button. The wheel for the rotation speed and the lever for the direction of the chuck will have to turn a switch on or off. This switch will manage the electric motor. Also, there has to be a fuse in the drill that will stop the drill if it makes contact with water. The drilling machine also be switched off when it gets too hot. Als laatste moeten we een sterke boorkop hebben die je goed kan aandraaien om de boor goed vast te zetten. Hiervoor is het gebruik van metaal een slimme keuze aangezien dit makkelijk te bewerken is en je dit heel sterk kan maken waardoor de boorkop niet zo snel zal breken. Door middel van een aandraaisleutel kan je dan de boor goed strak in de boorkop vastzetten. Finally, we need to have a strong chuck which you can secure. The use of metal is a smart choice because it can easily be edited. The chuck will also be very strong so it won't break that fast. For tighten the drill in the chuck, you can use a special key. Key that is used to put the drill in the chuck Source: https://encrypted-tbn1.gstatic.com/images?q=tbn:and9gcqpv- 9LcoRswgBZZXEYX7ezdfA1ki1CHrKPmLBblrVq4J_cD_5ATWukxXc Page 7
BIBLIOGRAPHY Author unknown, Elektrische veiligheidsklasse. 2 maart 2015, https://nl.wikipedia.org/wiki/elektrische_veiligheidsklasse Author unknown, Verbindingstechnieken. 30 november 2014, https://nl.wikipedia.org/wiki/verbindingstechnieken Author unknown, Belanghebbende (organisatie). 18 November 2014, https://nl.wikipedia.org/wiki/belanghebbende_(organisatie) I. Oskam, K. Cowan, L. Hoiting, P.Souren, Ontwerpen van technische innovaties. Groningen, 2012. K.G. Budinski, M.K. Budinski, Materiaalkunde. Ninth publication, Amsterdam, 2014. W. Hoogland, R. Dik, I. Brand, Rapport over rapporteren. Seventh publication, Groningen, 2015. H.J.J. Kals, C.A. van Luttervelt, K.A. Moulijn, J.M. Ponsen, A.H. Streppel, Industriële productie. Fifth publication, Den Haag, 2012. Page 8
APPENDIX 1: EXPLODED VIEW DRILLING MACHINE Page 9
THE DAVIT (SHORT REPORT) 16-10-2015 Hessel Koot - 15031985 Page 10
P REFACE This report is made because of a school assignment. This report is a short one of the official report. You can find the official report on my website http://eduweb.hhs.nl/~15031985/slb.html. The official report is written in Dutch. This report is written for people that are interested in water vehicles or in davits. I could not have written this report without help from other students. I also want to thank W.R. Hoogland for his detailed comments. Page 11
TABLE OF CONTENTS Summary 13 List of symbols 14 1 Introduction 15 2 Requirements and wishes 16 3 Conclusions 17 Bibliography 18 Page 12
S UMMARY In this report you can read the analysis of a davit. We're going to us the requirements and wishes for our own davit, which we have to build. The following paragraphs contain the most important information about the davit: a list of requirements and wishes for our davit the conclusions from the main report of a davit The main conclusion is that our davit must be strong enough to lift 150 kg. Besides that, there must be a transfer to the other arm to ensure that the jet ski stays horizontal while lifting. This will be further investigated in a next report. Page 13
LIST OF S YMBOLS Symbol Meaning Unit m Kilogram kg Page 14
1. INTRODUCTION The purpose of this report is to get known with the designing of a new davit and which materials we are going to use. There are lots of different davits in the world so we have to make sure we make a unique one that isn't designed yet. There is a huge gap between nowadays davits and davits that are assembled to the interior of the boat. In that way, our davit can distinguish from other davits in the world. Besides that, it is important to make sure that the davit easily get the jet ski out of the water or let it go in to the water. Easily will say that the davit is easy to control and that the davit can lift the jet ski without any problems. The purpose of this product is to make an electrical device that can easily lift a water vehicle in and out of the water and that is assembled to the interior of the boat. This analysis is created by making several assignments. First, the requirements and wishes for the davit are drawn up. At the end, the conclusion of the original report are given. An example of a davit on the back of a boat. Source: http://www.nauticexpo.com/prod/cooney-marine/product-22404-53872.html#productitem_235565 Page 15
2. REQIREMENTS AND W ISHES Requirements: 23-09-2015 The davit must be connected to the ship with bolts. The davit must be shorter than 2,00 metres. The davit must be less than 1,00 metres high. The davit must be less than 2,00 metres wide. The davit must lift at least 200 kg. The davit must lift a water vehicle that is 2,50 metres long. The davit must lift a water vehicle that is 1,00 metres wide. The davit must lift a water vehicle that is 1,00 metres high. The davit must lift a water vehicle that is up to 1,50 metres (in length) of the attachment point of the arms of the davit. The jet ski must be lifted by using mechanical energy. The jet ski must be lifted out of the water within 5 minutes. 06-10-2015 The davit must resist 500 cycle of lifting and lowering before it needs any maintenance. The davit must weight less than 150 kg. The davit must be water-resistant. The jet ski must be attached to the davit within 10 seconds. The jet ski should not fall down when the winch is suddenly released. Wishes 23-09-2015 Davit that can lift more than 200 kg. Davit that can lift a bigger jet ski. Davit that is less than 2,00 metres wide. Davit that can lift the jet ski out of the water in less than 5 minutes. Page 16
3. CONCLUSION The purpose of this product was to make an electrical device that can easily lift a water vehicle in and out of the water and that is assembled to the interior of the boat. Because of this analysis it is possible to answer the possibilities to do this.. First of all, we use steel for the 2 arms of the davit. This is a strong material that is easy to edit. besides that, you can easily produce these steel arms and production costs for these arms are very low. For our davit, we use mechanical drive. Because we use this, the use of a ready-to-go winch is the best. To make a winch is tricky because there are many different parts which are all edited and put together. Because we do not have so much time, it is easier to contract this work out to an external company. But the winch has to comply to our requirements. First of all, there must be a fuse on the winch that stops the jet ski from falling when you suddenly release the handle while turning. To do this, you can use a ratchet system (see image below). Besides that, the use of a steel laced wire is the best option for the davit. This type of cable is inexpensive and can handle the power during the lift of a jet ski very well. Of course there are better solutions but this is the cheapest. On top of the 2 arms and on the bar above the jet ski, there will be 4 pulleys in total. These pulleys must be able to hold the weight of the jet ski and also be water-resistant. Most pulleys are suitable for this It's cheaper to contract the production for pulleys out. The rod where the jet ski will hang underneath will be from steel because this is a strong material and easy to edit. On the 2 outsides of the rod, there will be 2 pulleys on the top and 2 hooks on the bottom to which you can attach the jet ski. These 2 hooks must hold the weight of the jet ski. To lift the jet ski, the easiest way to do this is to use 2 straps. These 2 straps get stuck in the 2 hooks on the bottom of the rod. After you ensure that the straps are well under the jet ski, you can start lifting the jet ski. The straps are made from nylon so the easiest way to get them is to buy them. An example of a winch with ratchet system Source: http://g02.a.alicdn.com/kf/htb1lmpahvxxxxabxxxxq6xxfxxxd/new-4- Ton-8000lb-Come-Along-font-b-Hoist-b-font-Ratchet-font-b-Hand-b.jpg Page 17
BIBLIOGRAPHY Author unknown, Elektrische veiligheidsklasse. 2 March 2015, https://nl.wikipedia.org/wiki/elektrische_veiligheidsklasse Author unknown, Verbindingstechnieken. 30 November 2014, https://nl.wikipedia.org/wiki/verbindingstechnieken Author unknown, Belanghebbende (organisatie). 18 November 2014, https://nl.wikipedia.org/wiki/belanghebbende_(organisatie) I. Oskam, K. Cowan, L. Hoiting, P.Souren, Ontwerpen van technische innovaties. Groningen, 2012. K.G. Budinski, M.K. Budinski, Materiaalkunde. Ninth publication, Amsterdam, 2014. W. Hoogland, R. Dik, I. Brand, Rapport over rapporteren. Seventh publication, Groningen, 2015. H.J.J. Kals, C.A. van Luttervelt, K.A. Moulijn, J.M. Ponsen, A.H. Streppel, Industriële productie. Fifth publication, Den Haag, 2012. Page 18