A borehole inflation and cracking type pit digging device

Abstract

The invention belongs to the technical field of pit excavation, and discloses a drilling and bulging pit excavation device, which comprises a vehicle frame, a sliding frame main mechanism, drilling and bulging mechanisms, a crushing and excavating mechanism and a slag removal mechanism. A caterpillar walking mechanism is installed at the bottom of the vehicle frame, the slag removal mechanism is installed at the middle of the top surface of the vehicle frame, the sliding frame main mechanism is arranged at the side of the slag removal mechanism, the sliding frame main mechanism has the movement freedom along three directions of X-axis, Y-axis and Z-axis, two groups of drilling and bulging mechanisms are symmetrically installed on the sliding frame main mechanism, the crushing and excavating mechanism is arranged on the vehicle frame, the input end of the slag removal mechanism is located on the movement path of the crushing and excavating mechanism, the drilling and bulging mechanism is used for drilling the rock mass wall and bulging the drilling position through hydraulic pressure, and the crushing and excavating mechanism is used for rock drilling and crushing of the bulged drilling. The wet static excavation technology is adopted, the degree of automation is high, and the problems of low excavation efficiency, high cost and great harm to workers' bodies in the prior art are solved.

Description

Technical Field

[0001] This invention relates to the field of pit excavation technology, specifically to a drill-explosion type pit excavation device. Background Technology

[0002] Current tunnel excavation technology is relatively primitive, and the following three methods are commonly used: First, blasting with explosives placed in blast holes, followed by manual or simple mechanical slag removal. This method carries high safety risks, generates large amounts of dust and sulfur fumes, which are detrimental to the health of miners, and is also very costly and inefficient. Second, the tunneling machines used in large coal mines are too large and heavy, resulting in high maintenance costs and long working face relocation times, ranging from half a month to one to two months. Almost all tunnel sections smaller than 2.4m x 2.2m cannot be accommodated by this type of machinery. Third, emulsion blasting, which essentially involves using explosives... The expansion of the material causes solids to crack, achieving the required looseness of the soil and rock at the tunneling face, before manual or simple mechanical excavation can proceed. However, this method uses chemicals that pollute the coal, which is detrimental to the environment and has a significant impact on the physical and mental health of miners. Furthermore, this method is slow, with a long reaction time for the chemicals, and the chemicals are ineffective against soft soil and minerals, resulting in low efficiency. In summary, existing tunnel excavation technology has low automation, low excavation efficiency, and significant excavation risks. Therefore, it is necessary to design a new type of tunnel excavation device to solve the problems of low excavation efficiency, high cost, and significant harm to workers associated with existing technologies. Summary of the Invention

[0003] The purpose of this invention is to overcome the shortcomings of the prior art and provide a drilling and fracturing type pit excavation device that adopts wet static excavation technology, has a high degree of automation, and solves the problems of low excavation efficiency, high cost and great harm to workers' health in the prior art.

[0004] The objective of this invention is achieved through the following technical solution: a drilling and fracturing type pit excavation device, comprising a chassis, a slide body mechanism, a drilling and fracturing mechanism, a crushing and excavating mechanism, and a slag removal mechanism. A tracked walking mechanism is installed at the bottom of the chassis. The slag removal mechanism is installed in the middle of the top surface of the chassis. The slide body mechanism is located on the side of the slag removal mechanism. The slide body mechanism has three degrees of freedom of movement along the X-axis, Y-axis, and Z-axis. Two sets of the drilling and fracturing mechanisms are symmetrically installed on the slide body mechanism. The crushing and excavating mechanism is installed on the chassis. The input end of the slag removal mechanism is located on the movement path of the crushing and excavating mechanism.

[0005] The drilling and fracturing mechanism includes a large rotary support, a water-cooled drill, and a fracturing rod. The water-cooled drill and the fracturing rod are slidably mounted on the large rotary support, which is mounted on the main slide body. The water-cooled drill is used for directional drilling into the rock wall, and the fracturing rod is used for hydraulically fracturing the borehole drilled by the water-cooled drill. The crushing and excavation mechanism is used for drilling and crushing the fracturing borehole.

[0006] In some embodiments, the carriage main body mechanism includes a crossbeam and two sets of carriage beam mechanisms symmetrically arranged on the left and right. The carriage beam mechanism includes a fixed beam, a sliding beam, and a column. The fixed beam is fixedly connected to the frame, and the sliding beam is slidably disposed on the fixed beam and moves along the length direction of the fixed beam. The column is vertically fixed to the top of one end of the sliding beam. The two ends of the crossbeam are slidably connected to the two columns respectively, and the crossbeam moves along the height direction of the columns. Two sliding blocks are slidably disposed on the crossbeam and move along the length direction of the crossbeam. The large rotary supports on the two sets of drilling and fracturing mechanisms are respectively installed on the two sliding blocks.

[0007] In some embodiments, the large rotary support includes a slide rail fixing plate, a rotary slip ring, and a support rod. The slide rail fixing plate is mounted on the slide block, the rotary slip ring is mounted on the slide rail fixing plate, one end of the support rod is mounted on the rotary slip ring, and the support rod is fixed with a front fixing seat and a rear fixing seat at intervals along its length. Each of the opposite end faces of the front and rear fixing seats is provided with an electric rotary slip ring. A water-cooled drill slide rail and a splitting rod slide rail are symmetrically fixed to the sidewalls of the electric rotary slip ring. A rotating lead screw is provided between the front and rear fixing seats, and both ends of the rotating lead screw pass through… The electric rotary slip ring is rotatably connected to the front fixed seat and the rear fixed seat respectively. A torque control servo motor is installed on the rear fixed seat. The output shaft of the torque control servo motor is driven to one end of the rotating lead screw. A lead screw power take-off is threaded onto the rotating lead screw. A water-grinding drill slider and a cracking rod slider are slidably mounted on the water-grinding drill slider and the cracking rod slider respectively. A drill-expansion power take-off electric control commutator and a cracking power take-off electric control commutator are respectively mounted on the water-grinding drill slider and the cracking rod slider. The water-grinding drill and the cracking rod are respectively mounted on the drill-expansion power take-off electric control commutator and the cracking power take-off electric control commutator.

[0008] In some embodiments, a motor frame is provided on the drill expansion power take-off electronic control commutator, a water-grinding drill motor is mounted on the motor frame, the output shaft of the water-grinding drill motor is connected to the water-grinding drill, and a positioning tip is fixed at the end of the support rod away from the rotating slip ring.

[0009] In some embodiments, a drive box is fixed to one end of the sliding beam away from the column. A first shaft and a second shaft are rotatably arranged inside the drive box. A first sprocket and a second sprocket are respectively mounted on the first shaft and the second shaft. The first sprocket is connected to the second sprocket via a chain drive. A drive gear is mounted on the second shaft. A rack is provided on the fixed beam. The drive gear meshes with the rack. One end of the first shaft is driven to the output shaft of a first gearbox. The input shaft of the first gearbox is driven to the output shaft of a first motor. A rail wheel is fixed to the bottom of the sliding beam. A guide rail is fixed to the top of the fixed beam. The rail wheel slides on the guide rail.

[0010] In some embodiments, a lead screw is vertically mounted on the side wall of the column, the lead screw is rotatably connected to the column, a power take-off is threaded onto the lead screw, an mounting sleeve is slidably mounted on the column, the power take-off is mounted on the side wall of the mounting sleeve, a crossbeam is fixedly connected to the mounting sleeve, a lead screw motor is mounted at one end of the lead screw, the output shaft of the lead screw motor is drivenly connected to one end of the lead screw, a second gearbox and a second motor are mounted on the slide, the output shaft of the second motor is drivenly connected to the output shaft of the second gearbox, the output shaft of the second gearbox is connected to a gear, a spur rack is fixed to the top of the crossbeam, the spur rack is parallel to the crossbeam, and the gear meshes with the spur rack.

[0011] In some embodiments, the breaking and excavating mechanism includes a breaking mounting frame, a U-shaped seat, a breaking rotary slip ring, a boom, a forearm, a rock drill, and a digging bucket. The breaking mounting frame is fixed at the front of the vehicle frame. The opening of the U-shaped seat is horizontally oriented towards the breaking mounting frame. The U-shaped seat is hinged to the breaking mounting frame via a hinge shaft, which is vertically oriented. The breaking rotary slip ring is mounted on the end of the U-shaped seat away from the breaking mounting frame. A boom mounting seat is provided on the breaking rotary slip ring. One end of the boom is hinged to the boom mounting seat, and the other end of the boom is hinged to one end of the forearm. The digging bucket is hinged to the other end of the forearm. The rock drill is slidably mounted on the forearm and has a degree of freedom to move along the length of the forearm.

[0012] In some embodiments, deflection hydraulic cylinders are provided on both sides of the hinge shaft. The cylinder body of the deflection hydraulic cylinder is hinged to the crusher mounting frame, and the telescopic shaft of the deflection hydraulic cylinder is hinged to the U-shaped seat. A boom hydraulic cylinder is provided on the boom mounting seat, and the cylinder body of the boom hydraulic cylinder is hinged to the boom mounting seat. The telescopic shaft of the boom hydraulic cylinder is hinged to the boom. A forearm hydraulic cylinder is provided at the bottom of the boom, and the cylinder body of the forearm hydraulic cylinder is hinged to the boom. The telescopic shaft of the forearm hydraulic cylinder is hinged to the forearm. The forearm is equipped with a digging hydraulic cylinder, the cylinder body of which is hinged to the forearm. The telescopic shaft of the digging hydraulic cylinder is hinged to the digging bucket. The forearm is hollow and is equipped with a rock drill mounting slide. The rock drill is fixedly mounted on the rock drill mounting slide. Both the left and right side walls of the forearm are equipped with breaking hydraulic cylinders. Both the left and right side walls of the forearm have strip-shaped grooves. The side wall of the rock drill mounting slide is fixed with an ear plate, which passes through the strip-shaped groove and connects to the telescopic shaft of the breaking hydraulic cylinder.

[0013] In some embodiments, the slag removal mechanism includes an arc-shaped slag removal bottom plate and an arc-shaped slag removal top plate. The bottom end of the arc-shaped slag removal bottom plate is hinged to the frame. A lifting hydraulic cylinder is provided between the upper end of the arc-shaped slag removal bottom plate and the frame. The cylinder body of the lifting hydraulic cylinder is hinged to the frame. The telescopic shaft of the lifting hydraulic cylinder is hinged to the arc-shaped slag removal bottom plate. The arc-shaped slag removal top plate is fixedly connected to the arc-shaped slag removal bottom plate. A transmission gap is formed between the arc-shaped slag removal bottom plate and the arc-shaped slag removal top plate. A slag removal chain is sleeved on the arc-shaped slag removal top plate. Multiple slag removal plates are evenly distributed and fixed on both sides of the slag removal chain along its own annular direction.

[0014] In some embodiments, the two ends of the arc-shaped slag removal top plate are respectively provided with a drive shaft and a driven shaft, both of which are rotatably connected to the arc-shaped slag removal bottom plate. A drive sprocket and a driven sprocket are respectively mounted on the drive shaft and the driven shaft. The slag removal chain drive is mounted on the drive sprocket and the driven sprocket. A slag removal motor is provided on the arc-shaped slag removal bottom plate, and the output shaft of the slag removal motor is drivenly connected to one end of the drive shaft.

[0015] The beneficial effects of this invention are:

[0016] 1. A hole is drilled into the rock wall using a water-powered drill. Then, a rock-breaking rod is inserted into the drill hole and hydraulically expands the rock. The expanded rock is then separated by a crushing and excavation mechanism and broken into small pieces. These pieces are then excavated and sent to a slag removal mechanism. The slag removal chain and slag removal plate transport the rock to the rear of the vehicle, thus achieving automated pit excavation. This greatly improves excavation efficiency and reduces the intensity and cost of manual labor.

[0017] 2. The wet static excavation technology is adopted, which breaks the rock mass through expansion and fracturing. It does not generate dust, which is beneficial to the physical and mental health of miners and environmental protection. In addition, the solidity of the static excavation tunnel is not easily damaged. It can be applied to the crushing of various rocks and has a wide range of applications. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of a drilling and fracturing type pit excavation device according to the present invention.

[0019] Figure 2 This is a schematic diagram of the drilling and fracturing mechanism in a drilling and fracturing type pit excavation device of the present invention;

[0020] Figure 3 This is a schematic diagram of the main structure of the slide body in a drilling and fracturing type pit excavation device of the present invention. Figure 1 ;

[0021] Figure 4 This is a schematic diagram of the main structure of the slide body in a drilling and fracturing type pit excavation device of the present invention. Figure 2 ;

[0022] Figure 5 for Figure 4 Enlarged view of point A in the middle;

[0023] Figure 6 This is a partial structural diagram of the slide body mechanism in a drilling and fracturing type pit excavation device of the present invention;

[0024] Figure 7 for Figure 6 Enlarged view at point B in the middle;

[0025] Figure 8 This is a schematic diagram of the crushing and excavation mechanism in a borehole expansion and fracturing type pit excavation device of the present invention. Figure 1 ;

[0026] Figure 9 This is a schematic diagram of the crushing and excavation mechanism in a borehole expansion and fracturing type pit excavation device of the present invention. Figure 2 ;

[0027] Figure 10 This is a schematic diagram of the slag removal mechanism in a drilling and fracturing type pit excavation device of the present invention;

[0028] Figure 11 This is a perspective view of the drilling expansion and fracturing mechanism in a drilling expansion and fracturing device for pit excavation according to the present invention.

[0029] Figure 12 for Figure 4 Enlarged view of point A in the middle;

[0030] In the diagram, 1-frame, 2-tracked walking mechanism, 3-fixed beam, 4-sliding beam, 5-column, 6-large slewing support, 7-water drill, 8-crossbeam, 9-slide seat, 10-slide rail fixing plate, 11-rotary slip ring, 12-support rod, 13-front fixed seat, 14-rear fixed seat, 15-electric rotary slip ring, 16-water drill slide rail, 17-expansion bar slide rail, 18-rotary lead screw, 19-torque control Servo motor, 20-Screw power take-off, 21-Drill expansion power take-off electronic control commutator, 22-Expansion and cracking power take-off electronic control commutator, 23-Expansion and cracking rod, 24-Motor frame, 25-Water drill motor, 26-Positioning tip, 27-Drive box, 28-First axis, 29-Second axis, 30-Chain, 32-Drive gear, 33-Rack, 35-Screw, 36-Power take-off, 37-Mounting sleeve, 38-Screw motor, 39 - Second gearbox, 40- Gear, 41- Spur rack, 42- Breaker mounting bracket, 43- U-shaped seat, 44- Breaker rotary slip ring, 45- Boom, 46- Arm, 47- Rock drill, 48- Excavator bucket, 49- Articulation shaft, 50- Boom mounting base, 51- Deflection hydraulic cylinder, 52- Boom hydraulic cylinder, 53- Arm hydraulic cylinder, 54- Excavator hydraulic cylinder, 55- Rock drill mounting slide, 56- Breaker hydraulic cylinder Cylinder, 57-strip chute, 58-ear plate, 59-arc-shaped slag removal bottom plate, 60-arc-shaped slag removal top plate, 62-slag removal chain, 63-slag removal lever, 64-drive shaft, 65-driven shaft, 66-drive sprocket, 67-driven sprocket, 68-slag removal motor, 69-first gearbox, 70-first motor, 71-rail wheel, 72-guide rail, 73-electric push rod, 74-insertion tube, 75-hollow round tube. Detailed Implementation

[0031] The technical solution of the present invention will be further described in detail below with reference to the accompanying drawings, but the scope of protection of the present invention is not limited to the following description.

[0032] Example 1, such as Figures 1 to 12As shown, a drilling and fracturing type pit excavation device includes a frame 1, a slide body mechanism, a drilling and fracturing mechanism, a crushing and excavating mechanism, and a slag removal mechanism. A tracked walking mechanism 2 is installed at the bottom of the frame 1 to adapt to uneven road surfaces. The slag removal mechanism is installed in the middle of the top surface of the frame 1. The slide body mechanism is located on the side of the slag removal mechanism and has three degrees of freedom of movement along the X, Y, and Z axes. Two sets of drilling and fracturing mechanisms are symmetrically installed on the slide body mechanism. The frame 1 is equipped with a crushing and excavating mechanism. The input end of the slag removal mechanism is located on the movement path of the crushing and excavating mechanism. The slide body mechanism can drive the drilling and fracturing mechanism to move along the X, Y, and Z directions, moving the drilling and fracturing device to a designated position on the rock wall to drill and hydraulically fracture the drilled hole. The drilling and fracturing mechanism includes... The system includes a large slewing support 6, a water-cooled drill 7, and a rock-breaking rod 23. Both the water-cooled drill 7 and the rock-breaking rod 23 are slidably mounted on the large slewing support 6, which is mounted on the main body of the carriage. The water-cooled drill 7 is used for directional drilling of the rock wall, and the rock-breaking rod 23 is used for hydraulically expanding and fracturing the drilled hole. The crushing and excavating mechanism is used for drilling and crushing the expanded drilled hole. The water-cooled drill 7 drills a hole in the rock wall, and then the rock-breaking rod 23 is inserted into the drilled hole of the water-cooled drill 7. The rock is hydraulically expanded and fractured by the rock-breaking rod 23. Then, the crushing and excavating mechanism separates the expanded rock and breaks it into small pieces, which are then excavated and sent to the slag removal mechanism. The slag removal mechanism transports the rock to the rear of the carriage 1, realizing automated pit excavation, greatly improving excavation efficiency, and reducing the intensity and cost of manual labor.

[0033] Example 2, as follows Figures 2 to 7 As shown, based on Embodiment 1, the main structure of the carriage includes a crossbeam 8 and two sets of carriage beam mechanisms symmetrically arranged on the left and right. Each carriage beam mechanism includes a fixed beam 3, a sliding beam 4, and a column 5. The fixed beam 3 is fixedly connected to the frame 1. The sliding beam 4 is slidably mounted on the fixed beam 3 and moves along the length of the fixed beam 3. The column 5 is vertically fixed to the top of one end of the sliding beam 4. Both ends of the crossbeam 8 are slidably connected to the two columns 5 respectively. The crossbeam 8 moves along the height of the columns 5. Two sliding blocks 9 are slidably mounted on the crossbeam 8, extending along the length of the crossbeam 8. The large rotary supports 6 on the two sets of drilling and fracturing mechanisms are respectively installed on two slide blocks 9. The slide block 9 moves along the X-axis by sliding the sliding beam 4 on the fixed beam 3, and moves along the Z-axis by sliding the crossbeam 8 on the column 5. The position of the slide block 9 in the Y-axis direction is adjusted by sliding the slide block 9 on the crossbeam 8. Thus, the slide block 9 has three degrees of freedom of movement, which can adjust the position of the drilling and fracturing mechanism on the slide block 9 within a large range. This gives the drilling and fracturing mechanism a large adjustment range and adjustment accuracy, improving the efficiency and effect of pit excavation.

[0034] Furthermore, such as Figure 6 and Figure 7 As shown, a drive box 27 is fixed to the end of the sliding beam 4 away from the column 5. A first shaft 28 and a second shaft 29 are rotatably arranged inside the drive box 27. A first sprocket and a second sprocket are respectively mounted on the first shaft 28 and the second shaft 29. The first sprocket is connected to the second sprocket via a chain 32. A drive gear 32 is mounted on the second shaft 29. A rack 33 is provided on the fixed beam 3. The drive gear 32 meshes with the rack 33. One end of the first shaft 28 is connected to the output shaft of the first gearbox 69. The input shaft of the first gearbox 69 is connected to the output shaft of the first motor 70. A guide wheel 71 is fixed to the bottom of the sliding beam 4. A guide rail 72 is fixed to the top of the fixed beam 3. The guide wheel 71 slides and adapts to the guide rail. On the slide rail 72, the first motor 70 drives the first shaft 28 to rotate via the first gearbox 69. The first shaft 28 drives the first sprocket to rotate, and the first sprocket drives the second sprocket to rotate via the chain 32. The second sprocket drives the second shaft 29 to rotate, and the second shaft 29 drives the drive gear 32 to rotate. Through the meshing principle of the drive gear 32 and the rack 33, the drive gear 32 drives the sliding beam 4 to move on the fixed beam 4. The matching of the track wheel 71 and the guide slide rail 72 guides the movement of the sliding beam 4, making the movement of the sliding beam 4 more stable. This gives the slide block 9 the freedom to move along the X-axis, so that the movement of the sliding beam 4 allows the drilling and fracturing mechanism to contact the rock wall for drilling and fracturing. Figures 2 to 6 As shown, a lead screw 35 is vertically installed on the side wall of the column 5, rotatably connecting the column 5. A power take-off (PTO) 36 is threaded onto the lead screw 35. A mounting sleeve 37 is slidably mounted on the column 5, and the PTO 36 is mounted on the side wall of the mounting sleeve 37. The crossbeam 8 is fixedly connected to the mounting sleeve 37. A lead screw motor 38 is installed at one end of the lead screw 35, and the output shaft of the lead screw motor 38 is driven to one end of the lead screw 35. The lead screw motor 38 drives the lead screw 35 to rotate, causing the PTO 36 to move linearly along the axial direction of the lead screw 35. By rotating the lead screw motor 38 forward and reverse, the PTO 36 moves up and down. The PTO 36 drives the crossbeam 8 to move up and down through the mounting sleeve 37, thereby adjusting the position of the drilling and fracturing mechanism in the Z-axis direction. A slide block 9 is provided with... The system includes a second gearbox 39 and a second motor 40. The output shaft of the second motor 40 is connected to the output shaft of the second gearbox 39, which is connected to a gear 40. A rack 41 is fixed to the top of the crossbeam 8, and the rack 41 is parallel to the crossbeam 8. The gear 40 meshes with the rack 41. The second motor 40 transmits its output power to the second gearbox 39, which drives the gear 40 to rotate. Through the meshing of the gear 40 and the rack 41, the slide 9 moves along the length of the rack 41, adjusting the position of the drilling and fracturing mechanism in the Y-axis direction. In summary, the slide body mechanism provides the drilling and fracturing mechanism with three degrees of freedom of movement, facilitating the adjustment of the working position of the drilling and fracturing mechanism.

[0035] Example 3: Based on Example 2, as follows... Figure 1 and Figure 2 As shown, the large rotary support 6 includes a slide rail fixing plate 10, a rotary slip ring 11, and a support rod 12. The slide rail fixing plate 10 is mounted on the slide block 9, the rotary slip ring 11 is mounted on the slide rail fixing plate 10, and one end of the support rod 12 is mounted on the rotary slip ring 11. The rotation of the rotary slip ring 11 drives the drilling and fracturing mechanism to deflect, thereby adjusting the position of the water drill 7 and the fracturing rod 23, facilitating drilling operations at different positions on the rock wall. The support rod 12 is fixed with spacers along its length. The front fixed seat 13 and the rear fixed seat 14 are equipped with electric rotary slip rings 15 on their opposite end faces. Water drill slide rails 16 and expansion rod slide rails 17 are symmetrically fixed to the side walls of the electric rotary slip rings 15. A rotating lead screw 18 is provided between the front fixed seat 13 and the rear fixed seat 14. Both ends of the rotating lead screw 18 pass through the electric rotary slip rings 15 and rotatably connect the front fixed seat 13 and the rear fixed seat 14 respectively. A torque-controlled servo motor 1 is installed on the rear fixed seat 14. 9. The output shaft of the torque control servo motor 19 is connected to one end of the rotating lead screw 18. A lead screw power take-off 20 is threaded onto the rotating lead screw 18. A water-grinding drill slider and a cracking rod slider are slidably mounted on the water-grinding drill slide rail 16 and the cracking rod slide rail 17, respectively. A drill expansion power take-off electronic control commutator 21 and a cracking power take-off electronic control commutator 22 are respectively mounted on the water-grinding drill slider and the cracking rod slider. The water-grinding drill 7 and the cracking rod 23 are respectively mounted on the drill expansion power take-off electronic control commutator 21 and the cracking power take-off electronic control commutator 22. On the commutator 22, a motor frame 24 is set on the drill expansion power take-off electric control commutator 21. A water-grinding drill motor 25 is installed on the motor frame 24. The output shaft of the water-grinding drill motor 25 is connected to the water-grinding drill 7. A positioning tip 26 is fixed at the end of the support rod 12 away from the rotating slip ring 11. Before drilling, the main body mechanism of the slide moves the drilling expansion mechanism, so that the positioning tip 26 is inserted into the rock wall, thereby stabilizing the entire drilling expansion device and enabling the water-grinding drill 7 to stably perform drilling operations at the designated position. The water-cooled drill 7 or the fracturing rod 23 is switched to working state by alternating rotation of the electric rotary slip ring 15. First, the water-cooled drill 7 drills a hole in the rock wall. After drilling is completed, it is reset. Then, the fracturing rod 23 is switched to working state and inserted into the hole drilled by the water-cooled drill 7. The fracturing rod 23 expands to cause the rock structure to tear explosively, achieving fracturing excavation of the rock wall. Hydraulic fracturing achieves a static, non-explosive effect, producing less dust and not affecting the miner's health. Furthermore, the fracturing method can cause the rock structure to tear explosively, resulting in high excavation efficiency and low cost. After fracturing, the torn rock is crushed and excavated by a crushing and excavation mechanism to excavate a pit; among which, such as Figure 11 and Figure 12As shown, electric push rods 73 are installed on the side walls of both the drilling expansion power take-off (DPTO) commutator 15 and the expansion fracture power take-off (EPTO) commutator 17. The telescopic shaft of the electric push rod 73 is connected to the insertion tube 74. A hollow round tube 75 is installed on the lead screw power take-off 12. The electric push rod 73 drives the insertion tube 74 to be inserted into the hollow round tube 75, which in turn drives the drilling expansion power take-off (DPTO) commutator 15 or the expansion fracture power take-off (EPTO) commutator 17 to move through the lead screw power take-off 12. Specifically, during drilling, the electric push rod 73 on the drilling expansion power take-off (DPTO) commutator 21 pushes the insertion tube 74 into the hollow round tube 75. The torque control servo motor 19 drives the rotating lead screw 18 to rotate. The rotating lead screw 18 drives the lead screw power take-off 20 to move along the axial direction of the rotating lead screw 18, thereby driving the drilling expansion power take-off (DPTO) commutator 17 through the lead screw power take-off 20. The commutator 21 slides on the water drill slide rail 16, causing the water drill 7 to move horizontally to complete the drilling operation. After drilling is completed, the torque control servo motor 19 reverses to drive the lead screw power take-off 20 to reset. Then, the electric push rod 73 on the drill expansion power take-off electric control commutator 21 resets. The electric push rod 73 on the expansion fracture power take-off electric control commutator 22 pushes the insertion tube 74 into the hollow round tube 75. The movement of the lead screw power take-off 20 drives the expansion fracture power take-off electric control commutator 22 to move on the expansion fracture rod slide rail 17, so that the expansion fracture rod 23 has horizontal movement freedom to extend into the borehole for expansion fracture operation. After expansion fracture is completed, the expansion fracture rod 23 resets. Then, the main carriage mechanism drives the entire drilling expansion fracture mechanism to move backward and exit the working state. The crushing and excavation mechanism then works to crush and excavate the fractured rock.

[0036] Example 4: Based on Example 3, as follows... Figure 8 and Figure 9As shown, the crushing and excavating mechanism includes a crushing mounting frame 42, a U-shaped seat 43, a crushing rotary slip ring 44, a boom 45, a forearm 46, a rock drill 47, and an excavating bucket 48. The crushing mounting frame 42 is fixed at the front of the chassis 1. The opening of the U-shaped seat 43 faces horizontally towards the crushing mounting frame 42. The U-shaped seat 43 is hinged to the crushing mounting frame 42 via a hinge shaft 49, which is vertically arranged. A crushing rotary slip ring is installed at the end of the U-shaped seat 43 away from the crushing mounting frame 42. 44. A boom mounting base 50 is provided on the crushing rotary slip ring 44. One end of the boom 45 is hinged to the boom mounting base 50, and the other end of the boom 45 is hinged to one end of the forearm 46. The other end of the forearm 46 is hinged to a digging bucket 48. A rock drill 47 is slidably mounted on the forearm 46 and has the freedom to move along the length of the forearm 46. The rotation of the crushing rotary slip ring 44 drives the rock drill 47 and the digging bucket 48 to rotate 360° around the horizontal axis. The rock drill 47 and the excavating bucket 48 can be deflected to any angle for crushing and excavation operations. During crushing and excavation, the rock drill 47 first drills the fractured end face to separate the fractured rock. The deflection of the boom 45 drives the rock drill 47 on the forearm 46 to adjust the pitch angle within a wide range. Then, the deflection of the forearm 46 adjusts the pitch angle of the rock drill 47 within a small range, so that the rock drill 47 can accurately aim at the rock mass and separate the rock. At the same time, the rock drill 47 can also break large pieces of rock into smaller pieces for easy transportation. After the rock drilling is completed, the excavating bucket 48 switches to the working state. With the rotation of the crushing rotary slip ring 44, the pitch deflection of the boom 45 and the pitch deflection of the forearm 46, the excavating bucket 48 can excavate rocks in different directions and positions. The excavated rocks are placed on the slag removal mechanism, which promptly transports the excavated rocks to the rear of the frame 1 without affecting the continuous excavation.

[0037] Furthermore, such as Figure 8As shown, deflection hydraulic cylinders 51 are installed on both sides of the hinge shaft 49. The cylinder body of the deflection hydraulic cylinder 51 is hinged to the crusher mounting frame 42, and the telescopic shaft of the deflection hydraulic cylinder 51 is hinged to the U-shaped seat 43. The two deflection hydraulic cylinders 51 work together to drive the U-shaped seat 43 to deflect, ensuring the stability of the U-shaped seat 43 deflection. When one deflection hydraulic cylinder 51 extends to drive the U-shaped seat 43 to deflect, the other deflection hydraulic cylinder 51 retracts synchronously to avoid interference. A boom hydraulic cylinder 52 is installed on the boom mounting base 50. The cylinder body of the boom hydraulic cylinder 52 is hinged to the boom mounting base 42. On the boom mounting base 50, the telescopic shaft of the boom hydraulic cylinder 52 is hinged to the boom 45. The telescopic movement of the boom hydraulic cylinder 52 causes the boom 45 to rotate up and down around its hinged position with the boom mounting base 50, achieving a wide range of pitch angle adjustments. A forearm hydraulic cylinder 53 is installed at the bottom of the boom 45. The cylinder body of the forearm hydraulic cylinder 53 is hinged to the boom 45, and the telescopic shaft of the forearm hydraulic cylinder 53 is hinged to the forearm 46. The telescopic movement of the forearm hydraulic cylinder 53 causes the forearm 46 to rotate around its hinged shaft with the boom 45, achieving a small range of pitch adjustments. Angle adjustment is used to adjust the working posture of the rock drill 47 and the excavator bucket 48. A digging hydraulic cylinder 54 is installed on the boom 46, with its cylinder body hinged to the boom 46. The telescopic shaft of the digging hydraulic cylinder 54 is hinged to the excavator bucket 48. The telescopic movement of the digging hydraulic cylinder 54 causes the excavator bucket 48 to deflect on the boom 46, thus realizing the digging action of the excavator bucket 48, completing the excavation of the rock mass and transporting the rock to the slag removal mechanism. The boom 46 is hollow and equipped with a rock drill mounting slide 55, which fixes the rock drill 47. Installed on the rock drill mounting slide 55, the left and right sides of the forearm 46 are equipped with hydraulic breaking cylinders 56, and the left and right sides of the forearm 46 are provided with strip-shaped grooves 57. The side walls of the rock drill mounting slide 55 are fixed with ear plates 58. The ear plates 58 pass through the strip-shaped grooves 57 and connect to the telescopic shaft of the hydraulic breaking cylinders 56. The telescopic movement of the hydraulic breaking cylinders 56 drives the rock drill 47 to make reciprocating linear motion, thereby causing the rock drill 47 to impact the rock. Through this impact, the fractured rock body is separated into rocks and large rocks are broken into small pieces.

[0038] Example 5: Based on Example 4, as follows... Figure 10As shown, the slag removal mechanism includes an arc-shaped slag removal bottom plate 59 and an arc-shaped slag removal top plate 60. The bottom end of the arc-shaped slag removal bottom plate 59 is hinged to the frame 1. A lifting hydraulic cylinder is installed between the top end of the arc-shaped slag removal bottom plate 59 and the frame 1. The cylinder body of the lifting hydraulic cylinder is hinged to the frame 1, and the telescopic shaft of the lifting hydraulic cylinder is hinged to the arc-shaped slag removal bottom plate 59. The lifting hydraulic cylinder drives the arc-shaped slag removal bottom plate 59 to rotate up and down around the hinge position with the frame 1 to adjust the slag removal mechanism. The arc-shaped slag removal top plate 60 is fixedly connected to the arc-shaped slag removal bottom plate 59 at an inclination angle. A transmission gap is formed between the arc-shaped slag removal bottom plate 59 and the arc-shaped slag removal top plate 60. A slag removal chain 62 is sleeved on the arc-shaped slag removal top plate 60. Multiple slag removal baffles 63 are evenly distributed and fixed on both sides of the slag removal chain 62 along its own annular direction. A drive shaft 64 and a driven shaft 65 are respectively provided at both ends of the arc-shaped slag removal top plate 60. Both the drive shaft 64 and the driven shaft 65 are rotatably connected to the arc-shaped slag removal bottom plate 59. The slag removal base plate 59 has a drive shaft 64 and a driven shaft 65 respectively equipped with a drive sprocket 66 and a driven sprocket 67. The slag removal chain 62 is driven and mounted on the drive sprocket 66 and the driven sprocket 67. The slag removal motor 68 is installed on the slag removal base plate 59. The output shaft of the slag removal motor 68 is connected to one end of the drive shaft 64. The excavated rock is placed at the bottom of the slag removal top plate 60 by the excavation bucket 48. The slag removal motor 68 drives the drive shaft 64 to rotate. The drive shaft 64 drives the drive sprocket 66 to rotate. The drive sprocket 66 drives the driven sprocket 67 to rotate through the slag removal chain 62. This causes the slag removal chain 62 to drive the slag removal plate 63 to move in a ring around the slag removal top plate 60. The slag removal plate 63 continuously carries the rock at the bottom of the slag removal top plate 60 to the top. Finally, the rock is discharged from the top of the slag removal mechanism, thus transporting the rock to the rear of the frame 1, realizing continuous pit excavation operation.

[0039] In the description of this invention, it should be understood that the terms "coaxial," "bottom," "one end," "top," "middle," "other end," "upper," "side," "top," "inner," "front," "center," and "both ends," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limiting this invention. Furthermore, those skilled in the art will understand that the beneficial effects to be achieved by this invention are merely to achieve better beneficial effects compared with the current embodiments in the prior art under specific conditions, rather than to directly achieve the best use effect in the industry.

[0040] The above description is merely a preferred embodiment of the present invention. It should be understood that the present invention is not limited to the forms disclosed herein and should not be construed as excluding other embodiments. It can be used in various other combinations, modifications, and environments, and can be altered within the scope of the concept described herein through the above teachings or related technologies or knowledge. Modifications and variations made by those skilled in the art that do not depart from the spirit and scope of the present invention should be within the protection scope of the appended claims.

Claims

1. A drilling and fracturing type pit excavation device, characterized in that, The system includes a frame (1), a slide body mechanism, a drilling and fracturing mechanism, a crushing and excavating mechanism, and a slag removal mechanism. A tracked walking mechanism (2) is installed at the bottom of the frame (1). The slag removal mechanism is installed in the middle of the top surface of the frame (1). The slide body mechanism is located on the side of the slag removal mechanism. The slide body mechanism has three degrees of freedom of movement along the X-axis, Y-axis, and Z-axis. Two sets of drilling and fracturing mechanisms are symmetrically installed on the slide body mechanism. The frame (1) is equipped with a crushing and excavating mechanism. The input end of the slag removal mechanism is located on the movement path of the crushing and excavating mechanism. The drilling and fracturing mechanism includes a large rotary support (6), a water drill (7), and a fracturing rod (23). The water drill (7) and the fracturing rod (23) are both slidably mounted on the large rotary support (6). The large rotary support (6) is mounted on the slide body mechanism. The water drill (7) is used to drill directional holes in the rock wall. The fracturing rod (23) is used to hydraulically fracture the holes drilled by the water drill (7). The crushing and excavation mechanism is used to drill and crush the fracturing holes. The main structure of the carriage includes a crossbeam (8) and two sets of carriage beam mechanisms symmetrically arranged on the left and right. The carriage beam mechanism includes a fixed beam (3), a sliding beam (4) and a column (5). The fixed beam (3) is fixedly connected to the frame (1). The sliding beam (4) is slidably arranged on the fixed beam (3). The sliding beam (4) moves along the length direction of the fixed beam (3). The column (5) is vertically fixed to the top of one end of the sliding beam (4). The two ends of the crossbeam (8) are slidably connected to the two columns (5). The crossbeam (8) moves along the height direction of the column (5). Two sliding seats (9) are slidably arranged on the crossbeam (8). The sliding seats (9) move along the length direction of the crossbeam (8). The large rotary supports (6) on the two sets of drilling and expansion mechanisms are respectively installed on the two sliding seats (9). The large slewing support (6) includes a slide rail fixing plate (10), a rotating slip ring (11), and a support rod (12). The slide rail fixing plate (10) is mounted on the slide block (9), the rotating slip ring (11) is mounted on the slide rail fixing plate (10), and one end of the support rod (12) is mounted on the rotating slip ring (11). The support rod (12) is fixed with a front fixing seat (13) and a rear fixing seat (14) at intervals along its own length. The front fixing seat (13) Electric rotary slip rings (15) are provided on the end faces opposite to the rear fixed seat (14). Water-grinding drill slide rails (16) and expansion rod slide rails (17) are symmetrically fixed to the side walls of the electric rotary slip rings (15). A rotating screw (18) is provided between the front fixed seat (13) and the rear fixed seat (14). The two ends of the rotating screw (18) pass through the electric rotary slip rings (15) and rotatably connect the front fixed seat (13) and the rear fixed seat (14) respectively. A torque control servo motor (19) is installed on the rotating screw (18). The output shaft of the torque control servo motor (19) is connected to one end of the rotating screw (18). A screw power take-off (20) is threaded onto the rotating screw (18). A water-grinding drill slider and a cracking rod slider are slidably mounted on the water-grinding drill slide rail (16) and the cracking rod slide rail (17), respectively. A drill expansion power take-off electric control commutator (21) and a cracking power take-off electric control commutator (22) are respectively mounted on the water-grinding drill slider and the cracking rod slider. 2) The water drill (7) and the expansion rod (23) are respectively installed on the drill expansion power take-off electric control commutator (21) and the expansion power take-off electric control commutator (22). Electric push rods are installed on the side walls of the drill expansion power take-off electric control commutator and the expansion power take-off electric control commutator. The telescopic shaft of the electric push rod is connected to the insertion tube. A hollow round tube is installed on the screw power take-off device. The electric push rod drives the insertion tube to be inserted into the hollow round tube, which can drive the drill expansion power take-off electric control commutator or the expansion power take-off electric control commutator to move through the screw power take-off device.

2. The drilling and fracturing type pit excavation device according to claim 1, characterized in that, The drill expansion power take-off electric control commutator (21) is provided with a motor frame (24), and a water grinding drill motor (25) is installed on the motor frame (24). The output shaft of the water grinding drill motor (25) is connected to the water grinding drill (7). The end of the support rod (12) away from the rotating slip ring (11) is fixed with a positioning tip (26).

3. The drilling and fracturing type pit excavation device according to claim 1, characterized in that, A drive box (27) is fixed at one end of the sliding beam (4) away from the column (5). A first shaft (28) and a second shaft (29) are rotatably arranged inside the drive box (27). A first sprocket and a second sprocket are respectively mounted on the first shaft (28) and the second shaft (29). The first sprocket is connected to the second sprocket through a chain (30). A drive gear (32) is mounted on the second shaft (29). A rack (33) is provided on the fixed beam (3). The drive gear (32) meshes with the rack (33). One end of the first shaft (28) is connected to the output shaft of the first gearbox (69). The input shaft of the first gearbox (69) is connected to the output shaft of the first motor (70). A rail wheel (71) is fixed at the bottom of the sliding beam (4). A guide rail (72) is fixed at the top of the fixed beam (3). The rail wheel (71) slides on the guide rail (72).

4. The drilling and fracturing type pit excavation device according to claim 3, characterized in that, A lead screw (35) is vertically installed on the side wall of the column (5). The lead screw (35) is rotatably connected to the column (5). A power take-off (36) is threaded onto the lead screw (35). An installation sleeve (37) is slidably installed on the column (5). The power take-off (36) is installed on the side wall of the installation sleeve (37). The crossbeam (8) is fixedly connected to the installation sleeve (37). A lead screw motor (38) is installed at one end of the lead screw (35). The output shaft of the lead screw motor (38) is driven to one end of the lead screw (35). A second gearbox (39) and a second motor are installed on the slide (9). The output shaft of the second motor is driven to the output shaft of the second gearbox (39). A gear (40) is connected to the output shaft of the second gearbox (39). A rack (41) is fixed to the top of the crossbeam (8). The rack (41) is parallel to the crossbeam (8). The gear (40) meshes with the rack (41).

5. The drilling and fracturing type pit excavation device according to claim 1, characterized in that, The crushing and excavating mechanism includes a crushing mounting frame (42), a U-shaped seat (43), a crushing rotary slip ring (44), a boom (45), a forearm (46), a rock drill (47), and an excavation bucket (48). The crushing mounting frame (42) is fixed at the front of the vehicle frame (1). The opening of the U-shaped seat (43) faces horizontally toward the crushing mounting frame (42). The U-shaped seat (43) is hinged to the crushing mounting frame (42) via a hinge shaft (49), which is vertically arranged. The U-shaped seat (43) is located away from the crushing frame. The crushing mounting frame (42) is equipped with the crushing rotating slip ring (44) at one end. The crushing rotating slip ring (44) is provided with a boom mounting seat (50). One end of the boom (45) is hinged to the boom mounting seat (50). The other end of the boom (45) is hinged to one end of the forearm (46). The other end of the forearm (46) is hinged to the digging bucket (48). The rock drill (47) is slidably mounted on the forearm (46). The rock drill (47) has the freedom to move along the length direction of the forearm (46).

6. The drilling and fracturing type pit excavation device according to claim 5, characterized in that, A deflection hydraulic cylinder (51) is provided on both sides of the hinge shaft (49). The cylinder body of the deflection hydraulic cylinder (51) is hinged to the crusher mounting frame (42). The telescopic shaft of the deflection hydraulic cylinder (51) is hinged to the U-shaped seat (43). A boom hydraulic cylinder (52) is provided on the boom mounting seat (50). The cylinder body of the boom hydraulic cylinder (52) is hinged to the boom mounting seat (50). The telescopic shaft of the boom hydraulic cylinder (52) is hinged to the boom (45). A forearm hydraulic cylinder (53) is provided at the bottom of the boom (45). The cylinder body of the forearm hydraulic cylinder (53) is hinged to the boom (45). The telescopic shaft of the forearm hydraulic cylinder (53) is hinged to the forearm (46). A digging hydraulic cylinder (54) is provided on the upper part of the digging hydraulic cylinder (54), the cylinder body of the digging hydraulic cylinder (54) is hinged to the arm (46), the telescopic shaft of the digging hydraulic cylinder (54) is hinged to the digging bucket (48), the arm (46) is hollow, the arm (46) is provided with a rock drill mounting slide (55), the rock drill (47) is fixedly installed on the rock drill mounting slide (55), the left and right side walls of the arm (46) are provided with a breaking hydraulic cylinder (56), the left and right side walls of the arm (46) are provided with a strip groove (57), the side wall of the rock drill mounting slide (55) is fixed with an ear plate (58), the ear plate (58) passes through the strip groove (57) and connects to the telescopic shaft of the breaking hydraulic cylinder (56).

7. The drilling and fracturing type pit excavation device according to claim 1, characterized in that, The slag removal mechanism includes an arc-shaped slag removal bottom plate (59) and an arc-shaped slag removal top plate (60). The bottom end of the arc-shaped slag removal bottom plate (59) is hinged to the frame (1). A lifting hydraulic cylinder is provided between the upper end of the arc-shaped slag removal bottom plate (59) and the frame (1). The cylinder body of the lifting hydraulic cylinder is hinged to the frame (1). The telescopic shaft of the lifting hydraulic cylinder is hinged to the arc-shaped slag removal bottom plate (59). The arc-shaped slag removal top plate (60) is fixedly connected to the arc-shaped slag removal bottom plate (59). A transmission gap is formed between the arc-shaped slag removal bottom plate (59) and the arc-shaped slag removal top plate (60). A slag removal chain (62) is sleeved on the arc-shaped slag removal top plate (60). Multiple slag removal plates (63) are evenly distributed and fixed on both sides of the slag removal chain (62) along its own annular direction.

8. The drilling and fracturing type pit excavation device according to claim 7, characterized in that, The arc-shaped slag removal top plate (60) is provided with a drive shaft (64) and a driven shaft (65) at both ends. The drive shaft (64) and the driven shaft (65) are rotatably connected to the arc-shaped slag removal bottom plate (59). The drive shaft (64) and the driven shaft (65) are respectively fitted with a drive sprocket (66) and a driven sprocket (67). The slag removal chain (62) is driven and fitted on the drive sprocket (66) and the driven sprocket (67). The arc-shaped slag removal bottom plate (59) is provided with a slag removal motor (68). The output shaft of the slag removal motor (68) is driven and connected to one end of the drive shaft (64).

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