Major Project.docx - Major Project – POWAUTO Gear Pump Photo 1 POWAUTO Gear Pump[1 48621 12956999 Raffi Jamgotchian 1 CONTENTS 2 Introduction.4 3

Major Project.docx - Major Project – POWAUTO Gear Pump...

This preview shows page 1 - 6 out of 24 pages.

Major Project – POWAUTO Gear Pump Photo 1: POWAUTO Gear Pump [1]. 48621 12956999 Raffi Jamgotchian
Image of page 1

Subscribe to view the full document.

1 C ONTENTS 2 Introduction ............................................................................................................................. 4 3 Analysis .................................................................................................................................... 5 3.1 Function and Working Condition of Components ............................................................ 5 3.1.1 Bearings ..................................................................................................................... 6 3.1.2 Dowels ....................................................................................................................... 6 3.2 Justification of Required Accuracy and Surface Integrity .................................................. 7 3.2.1 Pump Tolerances ........................................................................................................ 7 3.2.2 Critical Dimensional Tolerances ................................................................................. 7 3.3 Hydraulic Power, Shaft Power, and Driving Torque ........................................................... 8 3.3.1 Maximum Hydraulic Power ........................................................................................ 8 3.3.2 Shaft Power ................................................................................................................ 9 3.3.3 Driving Torque ............................................................................................................ 9 3.4 Material Wastage of the Driver Gear ................................................................................ 9 4 Diagrams and Pictures ........................................................................................................... 10 5 Materials ................................................................................................................................ 19 5.1 Main Components ........................................................................................................... 19 5.2 Thrust Plate ..................................................................................................................... 19 6 Manufacturing ....................................................................................................................... 20 6.1 Proposed Manufacturing Processes with Brief Flow Chart ............................................ 20 6.2 Detailed Description of Processes ................................................................................... 21 6.2.1 Lathe ........................................................................................................................ 21 6.2.2 Machining ................................................................................................................ 21 6.2.3 Clamping .................................................................................................................. 22 6.2.4 Machining the Body ................................................................................................. 22 6.3 Required Manufacturing Equipment .............................................................................. 24 6.4 Alternative Manufacturing Processes ............................................................................. 24 7 Quality Assurance and Inspection ......................................................................................... 24 48621 12956999 Raffi Jamgotchian
Image of page 2
8 Estimation of Manufacturing Costs ....................................................................................... 25 8.1 Time ................................................................................................................................. 25 8.2 Labour ............................................................................................................................. 25 8.3 Equipment ....................................................................................................................... 25 9 References ............................................................................................................................. 26 48621 12956999 Raffi Jamgotchian
Image of page 3

Subscribe to view the full document.

2 I NTRODUCTION The basic principle of the gear pump is that it helps fluid flow between gear teeth and displaces said fluid when the teeth rotate. One example of a gear pump is the POWAUTO gear pump. It is an external gear pump mainly used for heavy duty applications requiring high pressure (up to 310 BAR/5000PSI) and flow [2]. Maximising performance and flow is considered in the design of the POW pump. Well suited to high pressure applications such as cranes, garbage trucks, hydraulic presses, hook loaders and aerial platforms, ideally it is manufactured from rugged spheroidal graphite (SG) iron. The basic parts of a generic gear pump is shown below. Figure 1: Exploded view of parts [3]. This report will focus on this model of pump (as shown on the title page): Manufacturer Brand Model No. 48621 12956999 Raffi Jamgotchian
Image of page 4
David Brown Gears POWAUTO PUKS50R 3 A NALYSIS 3.1 F UNCTION AND W ORKING C ONDITION OF C OMPONENTS External gear pumps work with the meshing of two gears in and out to produce flow. The rotation of gears are against each other, and as they come out of mesh they draw in the fluid. The teeth trap the fluid in cavities, and as the mesh interlocks on the other side, fluid is forced out. One gear drives an idler gear during this process. The top gear is the driver, and rotates clockwise. The path the oil takes in the external gear pump is described by three stages: filling, transfer and delivery. 1. Filling – Oil flows into the cavities when the gears come out of mesh on the inlet side of the pump. The expansion of volume has occurred. Oil is trapped in the cavities by the gear teeth as it continues to rotate against the block casing. 2. Transfer – The trapped oils are sequentially moving from the inlet (left side of the pump), to the discharge port (on the right), around the casing.
Image of page 5

Subscribe to view the full document.

Image of page 6
  • Three '17
  • Milling machine, gear, Milling cutter, Raffi Jamgotchian

What students are saying

  • Left Quote Icon

    As a current student on this bumpy collegiate pathway, I stumbled upon Course Hero, where I can find study resources for nearly all my courses, get online help from tutors 24/7, and even share my old projects, papers, and lecture notes with other students.

    Student Picture

    Kiran Temple University Fox School of Business ‘17, Course Hero Intern

  • Left Quote Icon

    I cannot even describe how much Course Hero helped me this summer. It’s truly become something I can always rely on and help me. In the end, I was not only able to survive summer classes, but I was able to thrive thanks to Course Hero.

    Student Picture

    Dana University of Pennsylvania ‘17, Course Hero Intern

  • Left Quote Icon

    The ability to access any university’s resources through Course Hero proved invaluable in my case. I was behind on Tulane coursework and actually used UCLA’s materials to help me move forward and get everything together on time.

    Student Picture

    Jill Tulane University ‘16, Course Hero Intern

Ask Expert Tutors You can ask 0 bonus questions You can ask 0 questions (0 expire soon) You can ask 0 questions (will expire )
Answers in as fast as 15 minutes