DRIVE CONE CAVITY

Drive Cone Cavity

Table of Content

INTRODUCTION AND DEFINITION1

AIMS AND OBJECTIVES1

CURRENT STATUS2

PERSONAL ROLE AND ACHIEVEMENTS3

DISCUSSION5

ANALYSIS6

CONCLUSION9

TECHNICAL COMPETENCE10

REFERENCES14

APPENDICES16

Introduction and definition

A variable speed drive for RPM control of a revolvable device, preferably a progressing cavity pump, is proposed. It comprises parallel driving and driven shafts, coupled respectively to a first and second substantially identical cone-shaped rotors, situated in inverse positions to each other; an elastic belt, stretchably placed around the rotors, forming a left branch, a right branch, and curved sections frictionally coupled with the rotors; and a speed control means, (Tham 2005:54) capable to displace the left branch upward or alternatively to displace the right branch downward, causing corresponding displacements of the belt, changing the transmission ratio, thereby controlling the RPM of the rotatable device, in some embodiments--automatically.

Aims and objectives

The main aim of the research to study the Drive Cone Cavity with relation to the location in engine, main components, Basic parameters and the known materials, parts, and inexpensive technologies can be utilized in the drive, and can be manufactured, e.g., by establishments in the oil equipment and machinery industry, and thus can be efficient, cheap, reliable, and convenient for producers and users.

Current status

A variable speed drive for RPM control of a revolvable device comprising: a pivotable driving shaft; a pivotable driven shaft rotating the revolvable device, said driven shaft aligned in parallel to the driving shaft;a first cone-shaped rotor mounted on the driving shaft; a second cone-shaped rotor mounted on the driven shaft and substantially identical to the first rotor, said rotors situated in inverse positions to each other; an elastic belt substantially having a constant length, stretchably placed around the first and second rotors, so that forming a left straight branch and a right straight branch, a first curved section frictionally coupled with the first rotor, and a second curved section frictionally coupled with the second rotor, said belt situated in a plane substantially perpendicular to the driving shaft and the driven shaft; and a speed control means, capable to displace said left branch in a first direction or alternatively (Edmunds 2004:14) capable to displace said right branch in a second direction parallel and oppositely oriented to the first direction, causing corresponding displacements of said plane of the belt along the first direction or alternatively along the second direction, thereby controlling the RPM of the rotatable device.

Personal role and achievements

A variable speed drive for RPM control of a progressing cavity pump comprising: a frame mounted stationary in relation to the pump; a motor means mounted on the frame;a driving shaft pivotally mounted on the frame, and rotatable by the motor means; a pivotable driven shaft essentially rotating the pump, said driven shaft aligned in parallel to the driving shaft; a first cone-shaped rotor fixedly mounted on the driving shaft; a second cone-shaped rotor, fixedly mounted on the driven shaft, and substantially identical to the first rotor, said rotors situated in inverse positions to each other; an elastic belt, substantially having a constant length, and stretchably placed around the ...