Projectile collection system

A system for detecting the rotational speed of a projectile collection auger, the system comprising:

• a projectile transport system for a bullet trap comprising:
• a bullet trap having an inlet for receiving projectiles and an outlet for projectiles passing out of the trap, the outlet being disposed adjacent a bottom portion of the bullet trap;
• an auger system comprising a discharge screw conveyor disposed in communication with the outlet of the bullet trap, the discharge screw conveyor including a elongate shaft having a first end disposed lower than the outlet of the bullet trap, and a second end disposed higher than the first end, such that the elongate shaft extends upwardly at an angle between horizontal and vertical, and a flighting extending along the elongate shaft from the first end to a position proximal the second end,
• the auger system further comprising a housing having a rounded bottom, the housing having a housing first end disposed proximal to the first end of the elongate shaft of the discharge screw conveyor, and a housing second end adjacent the second end of the elongate shaft of the discharge screw conveyor, and wherein the housing further comprises an opening in the housing second end for discharging material moved in the housing by the discharge screw conveyor;
• and the auger system further comprising a motor unit having a shaft and a shear coupling connecting the elongate shaft of the auger system to the shaft of the motor unit, the shear coupling comprising:
• a first shear bolt and a second shear bolt, wherein each of the first shear bolt and the second shear bolt comprise a groove thereon defining a shearing plane;
• a first adapter, the first adapter having a flange extending radially equally outwardly therefrom, the flange defining a first hole and a second hole therethrough to receive the first shear bolt and the second shear bolt, respectively;
• and
• a second adapter, the second adapter having a flange extending radially equally outwardly therefrom, the flange defining a first hole and a second hole therethrough to receive the first shear bolt and the second shear bolt, respectively;
• the elongate shaft of the auger system having a material to be sensed located thereon;
• and
• a sensor configured to sense the material to be sensed, the sensor placed proximally to the material to be sensed,
• wherein the sensor and the material to be sensed are located on the first end of the elongate shaft and a motor is attached to the second end of the elongate shaft.

A system for detecting the level of projectiles collected in a projectile collection barrel in an auger projectile collection system, the system comprising:

• a projectile transport system for a bullet trap comprising:
• a bullet trap having an inlet for receiving projectiles and an outlet for projectiles passing out of the trap, the outlet being disposed adjacent a bottom portion of the bullet trap;
• an auger system comprising a discharge screw conveyor disposed in communication with the outlet of the bullet trap, the discharge screw conveyor including a elongate shaft having a first end disposed lower than the outlet of the bullet trap, and a second end disposed higher than the first end, such that the elongate shaft extends upwardly at an angle between horizontal and vertical, and a flighting extending along the elongate shaft from the first end to a position proximal the second end,
• the auger system further comprising a housing having a rounded bottom, the housing having a housing first end disposed proximal to the first end of the elongate shaft of the discharge screw conveyor, and a housing second end adjacent the second end of the elongate shaft of the discharge screw conveyor, and wherein the housing further comprises an opening in the housing second end for discharging material moved in the housing by the discharge screw conveyor;
• and the auger system further comprising a motor unit having a shaft and a shear coupling connecting the elongate shaft of the auger system to the shaft of the motor unit, the shear coupling comprising:
• a first shear bolt and a second shear bolt, wherein each of the first shear bolt and the second shear bolt comprise a groove thereon defining a shearing plane;
• a first adapter, the first adapter having a flange extending radially equally outwardly therefrom, the flange defining a first hole and a second hole therethrough to receive the first shear bolt and the second shear bolt, respectively;
• and
• a second adapter, the second adapter having a flange extending radially equally outwardly therefrom, the flange defining a first hole and a second hole therethrough to receive the first shear bolt and the second shear bolt, respectively;
• a projectile collection barrel disposed adjacent the second end of the elongate shaft;
• and
• an ultrasonic sensor placed in communication with an interior of the projectile collection barrel, and a processor in communication with the ultrasonic sensor, the processor programmed to receive one or more signals from the ultrasonic sensor indicating the level of projectiles within the projectile collection barrel, and wherein the processor is further programmed to shut down the auger projectile collection system when the processor receives a signal from the ultrasonic sensor indicating the level of projectiles within the collection barrel are above a predetermined threshold.