Integrated rapid excavation equipment for rock roadways and method thereof

An integrated rapid excavation equipment for rock roadways, the excavation equipment comprising:

• a crawler-type main frame, serving as a support platform for an overall structure;
• an oscillatory cutting part, disposed on the crawler-type main frame, comprising an oscillatory cutting head and a telescopic portion, and configured for cutting a rock stratum through extension and retraction of the telescopic portion and vibration of the oscillatory cutting head;
• a multi-function drilling rig, disposed on one side of the crawler-type main frame, and configured for drilling holes in the rock stratum and installing anchor bolts;
• a pulse fracturing system, connected to the oscillatory cutting part and disposed behind the telescopic portion, and configured for fracturing the rock stratum by generating hydraulic pulses to improve cutting efficiency;
• a temporary support mechanism, disposed in front of the crawler-type main frame, and configured for providing temporary support in an excavation process;
• a loading mechanism, disposed below the oscillatory cutting part, comprising a shovel plate and a star wheel conveying device disposed on the shovel plate, and configured for collecting and loading cut coal and rock;
• a conveyor belt, disposed behind the loading mechanism and connected to the loading mechanism, and configured for conveying the coal and rock to a rear of the excavation equipment;
• and
• a rear support part, disposed at a rear of the crawler-type main frame, and configured for stabilizing a position of the excavation equipment during operation;
• wherein the oscillatory cutting part is rotatably connected to a front end of the telescopic portion via a connecting member, telescopic cylinders are respectively rotatably disposed above and below the pulse fracturing system, and output ends of the telescopic cylinders disposed above and below are respectively rotatably connected to hinge seats disposed above and below the oscillatory cutting part;
• the oscillatory cutting head comprises an alloy roller cutter, a front end cover, a front housing, a front sleeve, a rear sleeve, and a rear housing;
• the alloy roller cutter is fixed to a front end of the front end cover by bolts, forming a main component for cutting operations;
• the rear sleeve is connected to a front end of the rear housing by bolts and extends into an interior of the rear housing;
• an eccentric block shaft is rotatably disposed inside the rear sleeve via two deep groove ball bearings, an eccentric block shaft end cover is disposed in front of a front one of the deep groove ball bearings, and a shaft sleeve is disposed in front of a rear one of the deep groove ball bearings for adapting to the eccentric block shaft;
• and
• a bent-axis motor is installed behind the rear one of the deep groove ball bearings via a motor sleeve and a bearing sleeve, an output end of the bent-axis motor is connected to the eccentric block shaft, the front sleeve is installed to a front end of the rear sleeve by bolts, the front end cover is rotatably disposed at a front end of the front sleeve via a cylindrical roller bearing, and a retaining ring is disposed on an inner side of the cylindrical roller bearing;
• wherein the multi-function drilling rig comprises a sliding platform, a traveling mechanism, a mechanical arm, a rotary platform, a drilling rig guide rail, and a drilling machine;
• the sliding platform is disposed on the sliding platform;
• the traveling mechanism comprises a traveling body slidably disposed on the sliding platform, a traveling gear is provided inside the traveling body via a traveling motor, and a transmission rack meshing with the traveling gear is provided on the sliding platform;
• and
• a first rotary member and a second rotary member are rotatably disposed at a front end of the traveling body about a vertical axis, a rear end of the mechanical arm is rotatably connected to the first rotary member about a horizontal axis, pitch swing cylinders are rotatably disposed on the second rotary member about another horizontal axis, output ends of the pitch swing cylinders are rotatably connected to a bottom of the mechanical arm, left-right swing cylinders are rotatably disposed on two sides of the front end of the traveling body and output ends of two sides of the left-right swing cylinders are respectively rotatably connected to two sides of the first rotary member, and a pump station is disposed on the traveling body and is hydraulically connected to the pitch swing cylinders and the left-right swing cylinders;
• a first rotary motor is disposed on a front end of the mechanical arm, the rotary platform is disposed on an output shaft of the first rotary motor and is capable of rotating about yet another horizontal axis, a second rotary motor is disposed on the rotary platform and an output shaft of the second rotary motor is connected to a bottom of the drilling rig guide rail, the drilling machine is slidably disposed on the drilling rig guide rail via an electric slider, and a self-drilling anchor rod body is installed on a front end of the drilling machine via a rotary grouting adapter;
• wherein the self-drilling anchor rod body comprises a hollow anchor rod body, a drill bit, a connecting sleeve, and a centralizer;
• the hollow anchor rod body is formed by connecting two section rod bodies via the connecting sleeve, the drill bit is disposed on a front end of the hollow anchor rod body, a rear end of the drill bit is a hollow disc-shaped structure with fine holes distributed circumferentially, the centralizer is disposed on a front section rod body of the hollow anchor rod body, a bearing plate is sleeved on a rear section rod body of the hollow anchor rod body for pressing against a rock wall and reinforcing bolts are provided on the bearing plate, and the rear section rod body of the hollow anchor rod body is connected to a grouting machine via the rotary grouting adapter and a grouting pipe;
• and
• wherein the pulse fracturing system comprises a pulse fracturing housing, a piston is movably disposed inside the pulse fracturing housing and the piston divides an inner cavity of the pulse fracturing housing into an oil chamber and a water chamber, an oil injection port of the oil chamber is connected to a hydraulic system of the excavation equipment, the telescopic portion is capable of moving back and forth within the water chamber, a water inlet of the water chamber is connected to a low-pressure water pump via a water inlet passage, a hydraulic operated check valve is provided on the water inlet passage, and a water outlet of the water chamber is connected to the hollow anchor rod body via a water outlet passage.