Apparatus for wear detection
First Claim
1. Apparatus for measurement of expected wear of mechanisms that are subjected to a plurality of wear inducing factors, said apparatus comprising:
- detecting means for detecting each of said plurality of wear inducing factors during operation of said mechanisms and for converting the condition of said wear inducing factors into a plurality of electrical analog signals;
divider means receiving at least one of said analog signals and selectively dividing said analog signals by preset numbers;
an electrical counter capable of presenting a cumulative display;
electrical signal processing means for multiplying said plurality of selectively divided electrical analog signals to obtain a product signal and modifying said product signal for operation of said electrical counter, said electrical counter providing a cumulative display responsive to cumulation of said product signals.
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Accused Products
Abstract
Method and apparatus for measurement of expected wear on a wide range of mechanisms that are subjected to a plurality of wear inducing factors. Where detection of wear is desired for certain components of oilwell drilling fluid piston pumps the method may be accomplished by recording a function of the product of piston speed, pump generated fluid pressure and time. Means are provided for monitoring signals representing pump pressure and speed or cycles, multiplying these signal quantities and obtaining a product which is a function of hydraulic horsepower hours. This product is then scaled to a convenient degree, and totalized. The invention is applicable to many types of mechanical and electro-mechanical devices including centrifugal and positive displacement pumps, compressors, and to various types of engines and motors. The invention provides a means to record the work output for any machine wherein it is possible to obtain electrical analog signals representing speed or cycles and torque or pressure.
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Citations
16 Claims
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1. Apparatus for measurement of expected wear of mechanisms that are subjected to a plurality of wear inducing factors, said apparatus comprising:
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detecting means for detecting each of said plurality of wear inducing factors during operation of said mechanisms and for converting the condition of said wear inducing factors into a plurality of electrical analog signals; divider means receiving at least one of said analog signals and selectively dividing said analog signals by preset numbers; an electrical counter capable of presenting a cumulative display; electrical signal processing means for multiplying said plurality of selectively divided electrical analog signals to obtain a product signal and modifying said product signal for operation of said electrical counter, said electrical counter providing a cumulative display responsive to cumulation of said product signals. - View Dependent Claims (2, 3)
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4. Apparatus for measurement of expected wear of mechanisms that are subjected to a plurality of wear inducing factors, said apparatus comprising:
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a plurality of transducers each detecting one of said plurality of wear inducing factors during operation of said mechanisms and providing an electrical transducer signal responsive to the condition of each of said wear inducing factors; divider means receiving at least one of said transducer signals and selectively dividing said transducer signals by preset numbers; comparator means functioning responsive to one of said plurality of wear inducing factors for automatically controlling selective division by said divider means; and wear signal display means receiving signals from said divider means and providing a cumulative display of signals from said divider means. - View Dependent Claims (5, 6, 7, 8, 9, 10)
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11. Apparatus for measurement of expected wear of mechanisms that are subjected to a plurality of wear inducing factors, said apparatus comprising:
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detecting means for detecting each of said wear inducing factors during operation of said mechanism and for converting the condition of said wear inducing factors into a plurality of electrical analog signals responsive to each of said plurality of wear inducing factors; an electrical counter capable of presenting a cumulative display; electrical signal processing means for multiplying said plurality of electrical analog signals to obtain a product signal and modifying said product signal for operation of said electrical counter, said electrical counter providing a cumulative display responsive to cumulation of said product signals; converter means being coupled to said detecting means and converting said analog signals to a form acceptable for reception by said display means, said converted analog signals being accumulated and displayed by said display means; and multiplier means being coupled between said detecting means and said converter means, said multiplier means receiving the output of said detecting means and providing a converter input, said converter input being the product of the analog signals from said detecting means. - View Dependent Claims (12, 13, 14, 15)
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16. Apparatus for measurement of expected wear of mechanisms that are subjected to wear inducing factors, including fluid pressure and cycles of operation, said apparatus comprising:
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separate detecting means for detecting said cycles of operation and pressure of wear inducing factors during operation of said mechanisms and for converting said cycles of operation and pressure into electrical analog signals that represent cycles of operation and represent pressure; divider means receiving at least one of said analog signals and selectively dividing said analog signals by preset numbers; an electrical counter capable of presenting a cumulative display; electrical signal processing means for multiplying aid plurality of selectively divided electrical analog signals to obtain a product signal and modifying said product signal for operation of said electrical counter, said electrical counter providing a cumulative display responsive to cumulation of said product signals.
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Specification