2 results about "Mine tunnel" patented technology

The invention discloses an earthing removing device for a mine tunnel. The earthing removing device comprises a square connecting plate. Ear plates with shaft holes are mounted on two sides of the upper part of the connecting plate. A trapezoidal reinforcing plate is welded between the two ear plates. An arc-shaped toothed bar with a bucket tooth is welded in the middle of the bottom of the connecting plate. A stiffening plate is welded between the peripheral edge of the square connecting plate and the outer wall of the toothed bar. An alloy sheath is mounted on the inner side of an arc-shaped curved surface of the toothed bar by means of a pin. A toothed sleeve is mounted at the upper part of the bucket tooth by means of a pin. Two arc-shaped guide grooves are formed in the inside wall of the lower part of the bucket tooth, and extend in the direction from the bottom of the bucket tooth to the bottom of the toothed sleeve. The depths of the guide grooves are progressively increased in the extending direction of the guide grooves. Since the depths of the guide grooves are progressively increased in the extending direction of the guide grooves, with the penetration of the bucket tooth, a space for releasing the extrusion force action between the inside wall of the bucket tooth and a material matrix is gradually increased, and the downwards cutting efficiency of the bucket tooth is further improved.

The invention discloses a mine tunnel soil pressure acquisition system. The system comprises a plurality of pressure sensors, a multi-channel amplifier, a multi-channel A/D converter, a processor, a FLASH storage module, a wireless communication interface module and a wireless charging module; the plurality of pressure sensors are used for outputting a plurality of acquired pressure data signals to the multi-channel amplifier; the multi-channel amplifier is used for amplifying the plurality of pressure data signals and outputting the amplified pressure data signals to the multi-channel A/D converter; and the multi-channel A/D converter is used for converting the amplified pressure data signals into digital signals and outputting the digital signals to the processor; the processor is used for processing the digital signals, and outputting the processed pressure data to the FLASH storage module and the wireless communication interface module; the FLASH storage module is used for storingthe processed pressure data; the wireless communication interface module is used for outputting the processed pressure data to the outside; and the wireless charging module is used for charging the processor. With the system adopted, the work efficiency of pressure detection can be improved.