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Chain pull analyzer system

  • US 4,803,886 A
  • Filed: 01/14/1988
  • Issued: 02/14/1989
  • Est. Priority Date: 01/14/1988
  • Status: Expired due to Fees
First Claim
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1. A chain pull analyzer system for monitoring the tensile stresses of a conveyor chain while under load and in operation, said chain including a plurality of elongated center links, a plurality of connecting plates, and a plurality of connecting pins for pivotally connecting said center links to said connecting plates, said system comprising:

  • (a) telemetry means for sensing the strain experienced by said chain while under load and in operation and for transmitting a radio frequency signal proportional to said strain, said telemetry means including;

    (i) a strain sensing means for sensing said strain experienced by said chain while under load and in operation and for producing an electrical signal based on said strain, said strain sensing means including a body member for replacing one of said center links of said chain;

    (ii) a signal conditioning means for converting said electrical signal produced by said strain sensing means to an analog signal, said signal conditioning means including a body member for replacing one of said center links of said chain;

    (iii) a radio frequency transmitter means for transmitting said analog signal of said signal conditioning means, said radio frequency transmitter including a body member for replacing one of said center links of said chain;

    (iv) a source of electrical energy for energizing said strain sensing means, said signal conditioning means and said radio frequency transmitter; and

    (b) data means for receiving said radio frequency signal transmitted by said telemetry means and for producing strain data output based on said radio frequency signal.

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