Apparatus for detecting intensity of shot peening and replacement unit for the apparatus

An improved apparatus for detecting an intensity of shot peening by detecting at least one of the number of shot that have collided with the apparatus and an intensity of the colliding shot, comprising:

• a box-like case having an opening at a top thereof;
• a resilient member disposed under the top of the case;
• a supporting member resiliently supported in the case between the resilient member and a great-load deformable coil spring which is mounted in the case, the supporting member having a lower portion and a hollow, upper portion, the hollow, upper portion including a small-load deformable coil spring mounted therein and an intermediate supporting portion mounted on the small-load deformable coil spring;
• a shot collision propagating member mounted in the hollow, upper portion of the supporting member to close the opening of the top of the box-like case by way of the resilient member, the shot collision propagating member producing and propagating an elastic wave when a shot collides with the resilient member;
• a transducer, for receiving the propagating elastic wave from the shot collision propagating member and converting the elastic wave to high frequency signals, disposed in the hollow, upper portion and resiliently supported by the small-load deformable coil spring through the intermediate supporting portion such that a top surface of the transducer contacts a lower surface of the shot collision propagating member;
• and
• a cable passing through the supporting member to be connected at one end to the transducer and to be connected at the other end to a measuring circuit.

An improved apparatus for detecting an intensity of shot peening by detecting at least one of the number of shot that have collided with the apparatus and an intensity of the colliding shot, comprising:

• a box-like case having a circular opening of 20 mm-10 mm in diameter at a top thereof;
• a first resilient member disposed under the top of the case;
• a hollow supporting member resiliently supported in the case between the first resilient member and a second resilient member which is mounted in the case, the hollow supporting member including a third resilient member mounted therein;
• a shot collision propagating member supported by the hollow supporting member to close the opening of the top of the box-like case by way of the first resilient member, the shot collision propagating member producing and propagating an elastic wave when colliding with a shot;
• a transducer, for receiving the propagating elastic wave from the shot collision propagating member and converting the elastic wave to high frequency signals, disposed in the hollow supporting member and resiliently supported by the third resilient member such that a top surface of the transducer contacts a lower surface of the shot collision propagating member;
• and
• a cable passing through the hollow supporting member so as to be connected at one end to the transducer and to be connected at the other end to a measuring circuit,
• wherein the apparatus is of a size so as to be carried by just one hand.

A replacement unit to be used in an improved apparatus that detects an intensity of shot peening by detecting at least one of the number of shot that have collided with the apparatus and an intensity of the colliding shot, the apparatus comprising a box-like case having an opening at a top thereof;

• a first resilient member disposed under the top of the case;
• a hollow supporting member resiliently supported in the case between the first resilient member and a second resilient member which is mounted in the case, the hollow supporting member including a third resilient member mounted therein;
• a shot collision propagating member supported by the hollow supporting member to close the opening of the top of the box-like case by way of the first resilient member, the shot collision propagating member producing and propagating an elastic wave when colliding with a shot;
• and a transducer, for receiving the propagating elastic wave from the shot collision propagating member and converting the elastic wave to high frequency signals, disposed in the hollow supporting member and resiliently supported by the third resilient member such that a top surface of the transducer contacts a lower surface of the shot collision propagating member, the replacement unit comprising the hollow supporting member including the third resilient member, the transducer, and the shot collision propagating member.