Wear detection by transponder destruction
First Claim
1. A system for detecting wear state comprising:
- an axial machine part including,a first component having a first wear period, the first component including a first radial depression of a first predetermined depth associated with the first wear period in which a first transponder is inserted and transmits a first signal associated with the first wear period, anda second component disposed over a portion of the first component, the second component having a second wear period different from the first wear period, the second component including a second radial depression of a second predetermined depth associated with the second wear period in which a second transponder is inserted and transmits a second signal associated with the second wear period;
a transmitter/receiver disposed in radial relation to the axial machine part, the transmitter/receiver adapted to transmit a third signal to the first transponder and the second transponder and adapted to receive the first signal and the second signal in response to the third signal; and
an evaluation unit communicatively coupled to transmitter/receiver and adapted to selectively determine expiration of the first wear period or the second wear period upon failure of the transmitter/receiver to receive the first signal or the second signal in response to the third signal.
1 Assignment
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Accused Products
Abstract
The invention relates to a system and a method for the detection of the wear state of machine parts which are subject to mechanical wear, by means of an electronic transmitting/receiving device (38) and at least one transponder device (36), which is embedded in the machine part (16) and sends back an acknowledgement signal in response to a transmitted signal which is transmitted by the transmitting/receiving device (38), in which case the reaching of a predetermined wear value can be indicated by the destruction of the transponder device (36) and by the lack of the acknowledgement signal associated with this. The invention is based on the discovery that the arrangement of a transponder device at a specific position which is a measure of a predetermined wear state means that the operational readiness of the transponder device, on the one hand, is indicated in advance by its signal return, and the reaching of the predetermined wear value is indicated by its destruction.
30 Citations
25 Claims
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1. A system for detecting wear state comprising:
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an axial machine part including, a first component having a first wear period, the first component including a first radial depression of a first predetermined depth associated with the first wear period in which a first transponder is inserted and transmits a first signal associated with the first wear period, and a second component disposed over a portion of the first component, the second component having a second wear period different from the first wear period, the second component including a second radial depression of a second predetermined depth associated with the second wear period in which a second transponder is inserted and transmits a second signal associated with the second wear period; a transmitter/receiver disposed in radial relation to the axial machine part, the transmitter/receiver adapted to transmit a third signal to the first transponder and the second transponder and adapted to receive the first signal and the second signal in response to the third signal; and an evaluation unit communicatively coupled to transmitter/receiver and adapted to selectively determine expiration of the first wear period or the second wear period upon failure of the transmitter/receiver to receive the first signal or the second signal in response to the third signal. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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13. A residual material compactor system comprising:
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an axial machine part including a plurality of annular ribs adapted to compress the residual material, the axial machine part including, at least one annular rib having a first wear period, the at least one annular rib including a first radial depression of a first predetermined depth associated with the first wear period in which a first transponder is inserted and transmits a first signal associated with the first wear period, and a tip disposed over a portion of the at least one annular rib, the tip having a second wear period different from the first wear period, the tip including a second radial depression of a second predetermined depth associated with the second wear period in which a second transponder is inserted and transmits a second signal associated with the second wear period; a transmitter/receiver disposed in radial relation to the axial machine part, the transmitter/receiver adapted to transmit a third signal to the first transponder and the second transponder and adapted to receive the first signal and the second signal in response to the third signal; and an evaluation unit communicatively coupled to transmitter/receiver and adapted to selectively determine expiration of the first wear period or the second wear period upon failure of the transmitter/receiver to receive the first signal or the second signal in response to the third signal. - View Dependent Claims (14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25)
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Specification