Ryobi RJ162VK Manuel utilisateur

Project Team 1

Christopher Clark

DanielleLaunay

JonathanLin

John Sequeira

RishiWadhera

Ryobi Reciprocating Saw

October 11, 2005

Computer Aided Drafting

14:650:388:01

Objective:

In this project, our main objective is to effectively model the Ryobi ® Variable

Speed Reciprocating Saw. It runs through normal 120-V alternating current power. When

on, the saw blade has a stroke of 19/16 inches moving at a maximum speed of 2800

strokes per minute. The entire assembly, including the removable blade, weights 6.3

pounds. The saw has 6 speed settings, a trigger which determines whether the saw is on

or off, and interchangeable blades. After completing the model and assembling it, we will

attempt to animate several aspects of the construction and functions of the saw. Finally,

we will end with an ANSYS analysis of the saw to determine certain limits, for example

under what load the blade would break, and what would be the strongest material through

which the blade can cut.

Challenges:

In undertaking our task, there are many difficulties that arise. First, the saw is

designed for maximum user comfort. That means that the external shell is contoured for

the human hand, with different grips and conveniences. These, as a whole, may be

difficult to model in ProE. A second complexity will be precisely measuring the size of

the pieces to ensure that our assembly comes together correctly. Because of the odd

external shape, some of the internal components are also oddly designed. We must also

take care in disassembling the model so that we do not damage any of the pieces. Finally,

there are approximately 50 different parts to be modeled. Having that many parts to

assemble creates complexities in and of itself.

A schematic of the saw follows

Part Number Name

1 Cover Plate

2 Gear Case Seal

3 Gear Case Cover

4 Spring Washer

5 Screw (M4 x 18mm)

6 Seal

7 Screw (M4 x 10mm)

8 Cover Plate

9 Guide Block

10 Saw Bar Assembly

11 Yoke Plate

12 Retaining Ring

13 Roller Bearing

14 Gear Assembly

15 Screw (M4 x 16mm)

16 Shaft Mounting Plate

17 Ball Bearing

18 Gear Shaft

19 Ball Bearing

20 Blade Release Lever

21 Spring

22 Pin

23 Gear Case

24 Lock Washer

25 Screw

26 Screw

27 Rubber Boot

28 Guard Plate

29 Shoe Assembly

30 Saw Blade

31 Bearing Retainer

32 Screw (M3 x 8mm)

33 Retaining Ring

34 Armature

35 Baffle

36 Screw

37 Field

38 Housing Assembly

39 Logo Plate

40 Bend Relief

41 Power Cord

42 Cord Clamp

43 Screw (M4 x 16mm)

44 Speed Control Board

45 Switch

46 Lead Assembly

47 Screw

48 Data Plate

49 Trigger

50 Brush Tube Assembly

51 Carrying Case

Expected Results:

After modeling all the parts in ProE, we expect to be able to assemble the pieces

together and animate them to show how the saw operates. Hopefully, we will animate the

creation process, the normal function of the saw, and the removal/addition of a blade.

After that, we hope to be able to use an ANSYS analysis to see the forces acting on

different portions of the saw, focusing specifically on the blade and casing. Hopefully, we

will be able to find the yield stress of the blade and the maximum hardness of the

materials through which it can cut.

Work Distribution:

Christopher Clark: Outer Casings

Writing Assignments/Presentations

Danielle Launay: Gears/Bearings

Screws

Jonathan Lin: Switches

Speed Control Mechanism

Power Cord

John Sequeira: Saw Blades

Blade Retainer Mechanism

Rishi Wadhera: Plates/Washers

Shafts

We will all be equally responsible for the assembly and animation of the pieces, and for

the force analysis portion of the project. We do, though, reserve the right to change these

responsibilities as necessary, or to suit a particular members strongest abilities.

References:

http://www.ryobi.com

http://oneworld1.inetu.net/manuals/ryobi/RJ162VK_628_r.pdf

The Ryobi ® Variable Speed Reciprocating Saw from which our models will be created.

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