Crawler-type down-the-hole drill carriage

Abstract

The crawler-type down-the-hole drill carriage comprises a crawler, crawler wheels are fixedly installed on the outer surfaces of driving shafts at the two ends of the crawler, a containing groove is formed in the upper surface of the crawler in an inwards-concave mode, a first motor is rotatably installed in the containing groove, and output shafts of the first motor are fixedly installed on the two sides in the containing groove; connecting plates are fixedly installed on the two sides of the outer surface of the first motor, drilling mechanisms are slidably installed in the two sets of connecting plates, chain wheels are fixedly installed at one ends of driving shafts on the two sides of the front end of the crawler and are in transmission connection with triangular driving mechanisms, and the triangular driving mechanisms are fixedly installed on the two sides of the front end of the crawler. In the drilling process, water mist can be sprayed between the drilling teeth, the drilling head can be efficiently cooled in the mode that water is sprayed between the drilling teeth, heat generated in the drilling process is taken away in time, and dust generated in the drilling process is effectively restrained while the drilling head is cooled.

Description

Technical Field

[0001] The invention relates to the technical field of down-the-hole drilling vehicles, in particular to a crawler-type down-the-hole drilling vehicle. Background Art

[0002] A down-the-hole drill is a professional equipment used in geological exploration, mineral resource mining, underground engineering and other fields. Its main features are that it provides good passability through a crawler chassis, adapts to complex terrain, and can work smoothly on rugged or uneven working surfaces. A down-the-hole drill uses a down-the-hole drill to perform drilling operations. The drill bit can drill underground and break rock layers to obtain rock and soil samples or conduct mineral mining.

[0003] The patent with the announcement number CN210798847U discloses a drill bit for a down-the-hole drilling vehicle, including a drill rod, one end of which is evenly provided with three stirring plates along its circumference, one side of the stirring plates is connected to each other, and a cylinder is provided at the connection, the central axis of the cylinder is consistent with the central axis of the drill rod, the free end of the cylinder is connected to a cone, and the end of the stirring plate close to the cylinder is connected with a plurality of first digging teeth, the cross section of the first digging teeth is triangular, and the side of the stirring plate adjacent to the first digging teeth is provided with a plurality of second digging teeth, the cross section of the second digging teeth is triangular. The above technical solution solves the problem of poor soil tamping performance and easy damage of the drill bit in the prior art.

[0004] During the drilling operation of the above-mentioned down-the-hole drilling vehicle special drill bit, water mist cannot be sprayed between the drill teeth of the drill bit, which will cause the drill teeth to anneal due to overheating. After the drill teeth are annealed, the hardness will decrease and the cutting ability will decrease, which will slow down the drilling speed and reduce the drilling efficiency. Summary of the invention

[0005] The object of the present invention is to provide a crawler-type down-the-hole drilling vehicle to solve the problem in the above-mentioned background technology that water mist cannot be sprayed between the drill teeth of the drill bit during the drilling operation.

[0006] To achieve the above object, the present invention provides the following technical solutions:

[0007] A crawler type down-the-hole drilling vehicle comprises a crawler vehicle, track wheels are fixedly mounted on the outer surfaces of driving shafts at both ends of the crawler vehicle, a placement groove is provided in an inwardly concave manner on the upper surface of the crawler vehicle, a first motor is rotatably mounted in the placement groove, an output shaft of the first motor is fixedly mounted on both sides of the placement groove, connecting plates are fixedly mounted on both sides of the outer surface of the first motor, and drilling mechanisms are slidably mounted in two sets of connecting plates, so that the drilling mechanism can be driven by the first motor to flip through the connecting plates, so that the drilling mechanism can slide down in the direction of the connecting plates and drill into the working surface.

[0008] Among them, a sprocket is fixedly installed at one end of the driving shaft on both sides of the front end of the crawler vehicle, the sprocket is transmission-connected with the triangular driving mechanism, and the triangular driving mechanism is fixedly installed on both sides of the front end of the crawler vehicle.

[0009] As a further solution of the present invention, the triangular drive mechanism includes two sets of triangular frames, which are fixedly installed on both sides of the front end of the tracked vehicle and through which the drive shaft passes. Three sets of drive wheels are rotatably installed in the triangular frames, and the outer surfaces of the three sets of drive wheels are covered with track strips.

[0010] As a further solution of the present invention, a chain is sleeved on the outer surface of the sprocket, and the other end of the chain is sleeved on the outer surface of another set of sprockets, and the other set of sprockets is fixedly installed in an embedded groove opened on the outer surface of one set of driving wheels.

[0011] As a preferred solution of the present invention, the drilling mechanism includes two groups of linear modules, the two groups of linear modules are fixedly installed at one end of two groups of connecting plates, a second motor is fixedly installed between the moving blocks of the two groups of linear modules, a driving rod is fixedly installed at one end of the output shaft of the second motor, a threaded opening is opened at one end of the driving rod, and a drilling probe is installed in the inner thread of the threaded opening.

[0012] As a further solution of the present invention, one end of the two sets of linear modules is rotatably connected to the piston rod of the hydraulic rod, and the hydraulic rod is rotatably mounted on the upper surface of the crawler vehicle.

[0013] As a further solution of the present invention, the hydraulic rod can be driven synchronously with the first motor through the hydraulic control valve, so that the first motor can push the connecting plate together with the hydraulic rod during the process of twisting the connecting plate.

[0014] As a further preferred solution of the present invention, the outer front end portion of the driving rod slides through a guide ring, and the guide ring is fixedly installed between the two groups of connecting plates.

[0015] As a further solution of the present invention, a water hole is opened in the driving rod, and a connecting port is opened in an embedded manner on the outer surface of the driving rod, which is connected to the water hole. A ring is rotatably sealed on the outer surface of the connecting port, and a water inlet pipe is installed on the outer surface of the ring, so that the water inlet pipe can supply water into the water hole opened in the driving rod.

[0016] As a further solution of the present invention, connecting arms are fixedly installed on both sides of the outer surface of the collar, and the other ends of the two groups of connecting arms are fixedly installed on one end of the moving blocks of the two groups of linear modules, so that the linear modules can push the connecting arms together during the process of pushing the second motor and the driving rod, so that the connecting arms can drive the collar to always be tightly fitted on the surface of the connecting port.

[0017] As a further preferred embodiment of the present invention, a water inlet is provided in the drilling head, and the water inlet can be installed into the threaded port through the drilling head thread and connected with the water hole. Three groups of drainage holes are provided at one end of the water inlet, and the three groups of drainage holes are connected to the drill teeth of the drilling head and are connected and installed with an atomizing nozzle.

[0018] Compared with the prior art, the crawler-type down-the-hole drilling vehicle of the present invention has the following beneficial effects:

[0019] 1. When drilling, the crawler wheel and the triangular drive mechanism are driven by the driving shaft to drive the crawler vehicle to move, and the triangular drive mechanism at the front end of the crawler vehicle is triangular in shape to drive the crawler vehicle, providing a more stable driving force for the crawler vehicle, enhancing the traction of the crawler vehicle, and enabling it to maintain good driving performance even in complex terrain. When the drilling position is reached, the first motor can be stopped and started, and the first motor will drive the two sets of connecting plates to flip to the required drilling angle, thereby causing the two sets of connecting plates to drive the drilling mechanism installed between them to flip, and start the drilling mechanism to slide down between the two sets of connecting plates for drilling operation, and the drilling mechanism sprays water mist to the drilled part during the drilling process, and the sprayed water mist can effectively absorb heat and cool the drilling mechanism, thereby preventing the drilling mechanism from overheating, resulting in reduced hardness, increased wear, etc., thereby maintaining good performance of the drill bit and enabling drilling to be carried out continuously and efficiently.

[0020] 2. When the crawler vehicle is driving, it will drive the chain set on the outer surface of the sprocket wheel fixedly installed at one end of the driving shaft, thereby rotating one of the driving wheels in the chain driving triangle frame, so that this group of driven driving wheels drives the track strips set on the outer surface to rotate, and the three groups of driving wheels are distributed in a triangular shape in the triangle frame, so that the driving wheels support the track strips set on the outer surface to form a triangular shape. When the crawler vehicle is driving, the center of gravity of the vehicle is more evenly distributed. When the crawler vehicle is driving on rugged terrain, the uniform center of gravity distribution can reduce the risk of vehicle rollover, making the vehicle more stable during driving. When turning or being subjected to lateral force, it can better resist lateral deformation and maintain driving posture, ensuring stable operation under various complex working conditions.

[0021] 3. After the crawler vehicle travels to the drilling site, the first motor and the hydraulic rod are started simultaneously, so that the first motor twists the connecting plate to flip it and is pushed and supported by the hydraulic rod at the same time. The first motor and the hydraulic rod work together to accurately control the flipping angle of the connecting plate, thereby realizing accurate regulation of the drilling angle. After the connecting plate is flipped to the required drilling angle, the water inlet pipe connected to the outer surface of the collar can be connected to the faucet and installed, so that the faucet supplies water to the water inlet pipe, so that water flows along the water inlet pipe through the connecting port opened on the outer surface of the driving rod into the water through hole opened in the driving rod, and then enters the water inlet in the drilling head through the water through hole, and the other end of the water inlet is connected and installed with three groups of drainage holes, and the other end of the drainage hole extends between the drill teeth of the drilling head and is connected and installed with an atomizing nozzle, so that water flows along the water inlet into the drainage hole By spraying water between the drill teeth through the atomizing nozzle, the drill bit can be efficiently cooled, the heat generated during drilling can be taken away in time, the good performance of the drill bit can be maintained, and the service life of the drill bit can be extended. The atomizing nozzle sprays water between the drill teeth, which effectively suppresses the dust generated during the drilling process while cooling the drill bit, reduces the pollution of the working environment caused by flying dust, improves the working environment, and is beneficial to protect the surrounding equipment from dust erosion. Start the second motor and the linear module, the linear module will drive the second motor between the moving blocks and the drive rod fixedly connected to one end of the output shaft to slide down, and the second motor will drive the drill bit at one end of the drive rod to perform drilling operations on the working surface. The linear module can provide stable linear motion to ensure the horizontal drop of the drill bit during drilling and reduce shaking during drilling. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for use in the embodiments are briefly introduced below. Obviously, the drawings described below are only examples of the embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0023] Figure 1 It is a structural schematic diagram of an embodiment of the present invention;

[0024] Figure 2 It is a schematic diagram of the structure of the placement slot in an embodiment of the present invention;

[0025] Figure 3 It is a structural schematic diagram of a triangular frame in an embodiment of the present invention;

[0026] Figure 4 It is a structural schematic diagram of the triangular driving mechanism in an embodiment of the present invention;

[0027] Figure 5 Schematic diagram of the structure of the second motor and the driving rod in an embodiment of the present invention;

[0028] Figure 6 A schematic diagram of the structure of a drilling mechanism in an embodiment of the present invention;

[0029] Figure 7 This is a schematic diagram of the structure of the communication port in an embodiment of the present invention;

[0030] Figure 8 Schematic diagram of the structure of the water inlet and the drain hole in the embodiment of the present invention.

[0031] Figure numerals: 1. crawler vehicle; 101. track wheel; 102. placement groove; 103. first motor; 104. connecting plate; 105. sprocket; 2. triangular drive mechanism; 201. triangular frame; 202. driving wheel; 203. track strip; 204. chain; 205. embedded groove; 3. drilling mechanism; 301. linear module; 302. hydraulic rod; 303. second motor; 304. driving rod; 305. guide ring; 306. drilling head; 307. collar; 308. water inlet pipe; 309. threaded port; 310. drainage hole; 311. connecting port; 312. water inlet; 313. atomizing nozzle; 314. connecting arm; 315. water through hole. DETAILED DESCRIPTION

[0032] In order to make the purpose, technical solution and advantages of the embodiments of the present invention more clear, the embodiments of the present invention are further described in detail in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0033] In the description of the embodiments of the present invention, it should be understood that the terms "upper", "lower", "front", "back", "inside", "outside", etc. indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the embodiments of the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as a limitation on the embodiments of the present invention.

[0034] In the description of the embodiments of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense. For example, it can be a fixed connection, an integral connection, or a detachable connection; it can be the internal connection of two components; it can be a direct connection or an indirect connection through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the embodiments of the present invention will be understood based on the specific circumstances.

[0035] See also Figure 1-Figure 2As shown, an embodiment of the present invention is a crawler-type down-the-hole drilling vehicle, comprising a crawler vehicle 1, crawler wheels 101 are fixedly installed on the outer surfaces of the driving shafts at both ends of the crawler vehicle 1, a placement groove 102 is provided on the upper surface of the crawler vehicle 1 in an inwardly concave manner, a first motor 103 is rotatably installed in the placement groove 102, an output shaft of the first motor 103 is fixedly installed on both sides of the placement groove 102, connecting plates 104 are fixedly installed on both sides of the outer surface of the first motor 103, and drilling mechanisms 3 are slidably installed in the two groups of connecting plates 104, so that the drilling mechanism 3 can be driven by the first motor 103 to flip through the connecting plates 104, so that the drilling mechanism 3 can slide and drill into the working surface along the direction of the connecting plates 104.

[0036] Sprockets 105 are fixedly installed at one end of the driving shaft on both sides of the front end of the crawler vehicle 1. The sprockets 105 are transmission-connected with the triangular driving mechanism 2, and the triangular driving mechanism 2 is fixedly installed on both sides of the front end of the crawler vehicle 1.

[0037] During drilling operation, the crawler vehicle 1 drives the crawler wheel 101 and the triangular driving mechanism 2 through the driving shaft to drive the crawler vehicle 1 to move, and the triangular driving mechanism 2 at the front end of the crawler vehicle 1 is triangular in shape to drive the crawler vehicle 1, which can provide a more stable driving force for the crawler vehicle 1, enhance the traction of the crawler vehicle 1, and enable it to maintain good driving performance even in complex terrain, until it moves to the part that needs to be drilled, then the first motor 103 can be stopped and started, and the first motor 103 will drive the two sets of connecting plates 104 to flip to the required drilling position. Angle, and then the two sets of connecting plates 104 can drive the drilling mechanism 3 installed therebetween to flip, and then the drilling mechanism 3 can be started to slide down between the two sets of connecting plates 104 to perform drilling operations, and the drilling mechanism 3 will spray water mist to the drilled part during the drilling process, and the sprayed water mist can effectively absorb heat, and cool the drilling mechanism 3, and then prevent the drilling mechanism 3 from overheating, resulting in reduced hardness and increased wear, etc., thereby maintaining the good performance of the drill bit and allowing drilling to be carried out continuously and efficiently.

[0038] See also Figure 3-Figure 4 As shown, the triangular drive mechanism 2 includes two sets of triangular frames 201, which are fixedly mounted on both sides of the front end of the crawler vehicle 1 and through which the drive shaft passes. Three sets of drive wheels 202 are rotatably mounted in the triangular frames 201, and the outer surfaces of the three sets of drive wheels 202 are covered with track strips 203.

[0039] The outer surface of the sprocket 105 is sleeved with a chain 204 , and the other end of the chain 204 is sleeved on the outer surface of another set of sprockets 105 , and the other set of sprockets 105 is fixedly installed in an embedded groove 205 opened on the outer surface of one set of driving wheels 202 .

[0040] When the tracked vehicle 1 is traveling, the sprocket 105 fixedly installed at one end of the driving shaft will drive the chain 204 mounted on the outer surface, so that the chain 204 can drive one group of driving wheels 202 in the triangular frame 201 to rotate, and then this group of driven driving wheels 202 can drive the track strips 203 mounted on the outer surface to rotate. The three groups of driving wheels 202 are distributed in a triangular shape in the triangular frame 201, so that the driving wheels 202 can support the track strips 203 mounted on the outer surface to form a triangular shape, so that when the tracked vehicle 1 is traveling, this structure can make the center of gravity of the vehicle more evenly distributed. When the tracked vehicle 1 is traveling on rugged terrain, the even center of gravity distribution can reduce the risk of the vehicle rolling over, making the vehicle more stable during driving. When turning or being subjected to lateral force, this structure can better resist lateral deformation, maintain the driving posture of the vehicle, and ensure the stable operation of the vehicle under various complex working conditions.

[0041] See also Figure 5-Figure 8 As shown, the drilling mechanism 3 includes two groups of linear modules 301, and the two groups of linear modules 301 are fixedly installed at one end of the two groups of connecting plates 104. A second motor 303 is fixedly installed between the moving blocks of the two groups of linear modules 301, and a driving rod 304 is fixedly installed at one end of the output shaft of the second motor 303. A threaded opening 309 is opened at one end of the driving rod 304, and a drilling head 306 is installed in the inner thread of the threaded opening 309.

[0042] One end of the two sets of linear modules 301 is rotatably connected to the piston rod of the hydraulic rod 302 , and the hydraulic rod 302 is rotatably mounted on the upper surface of the crawler vehicle 1 .

[0043] The hydraulic rod 302 can be driven synchronously with the first motor 103 through the hydraulic control valve, so that the first motor 103 can push the connecting plate 104 together with the hydraulic rod 302 during the process of twisting the connecting plate 104 .

[0044] The outer front end of the driving rod 304 slides through the guide ring 305 , and the guide ring 305 is fixedly installed between the two sets of connecting plates 104 .

[0045] A water hole 315 is provided in the driving rod 304, and a connecting port 311 is provided on the outer surface of the driving rod 304 in an embedded manner. The connecting port 311 is connected to the water hole 315, and a ring 307 is rotatably sealed on the outer surface of the connecting port 311. A water inlet pipe 308 is installed on the outer surface of the ring 307, so that the water inlet pipe 308 can supply water into the water hole 315 provided in the driving rod 304.

[0046] Connecting arms 314 are fixedly installed on both sides of the outer surface of the ring 307, and the other ends of the two groups of connecting arms 314 are fixedly installed on one end of the moving blocks of the two groups of linear modules 301, so that the linear module 301 can push the connecting arms 314 together during the process of pushing the second motor 303 and the driving rod 304, so that the connecting arms 314 can drive the ring 307 to always be tightly fitted on the surface of the connecting port 311.

[0047] A water inlet 312 is provided in the drilling head 306, and the water inlet 312 can be installed in the threaded port 309 through the threaded hole of the drilling head 306 and connected to the water hole 315. One end of the water inlet 312 is connected to three groups of drainage holes 310, and the three groups of drainage holes 310 are connected to the drill teeth of the drilling head 306 and connected to an atomizing nozzle 313.

[0048] After the crawler vehicle 1 travels to the drilling site, the first motor 103 and the hydraulic rod 302 are started at the same time, so that the first motor 103 can twist the connecting plate 104 to turn it over, and the connecting plate 104 will be pushed and supported by the hydraulic rod 302. The first motor 103 and the hydraulic rod 302 work together in this way, and the turning angle of the connecting plate 104 can be accurately controlled, so as to achieve accurate regulation of the drilling angle. After the connecting plate 104 is turned to the required drilling angle, the water inlet pipe 308 installed on the outer surface of the collar 307 can be connected to the water inlet pipe 308 installed on the outer surface of the collar 307. The faucet is connected and installed, so that the faucet can supply water to the water inlet pipe 308, so that the water flows along the water inlet pipe 308 through the connecting port 311 opened on the outer surface of the driving rod 304 and enters the water through hole 315 opened in the driving rod 304, and then the water can enter the water inlet 312 in the drilling head 306 through the water through hole 315, and the other end of the water inlet 312 is connected and installed with three groups of drainage holes 310, and the other end of the drainage hole 310 extends between the drill teeth of the drilling head 306 and is connected and installed with an atomizing nozzle 313, so that The water can flow into the drainage hole 310 through the water inlet 312 and be sprayed between the drill teeth through the atomizing nozzle 313. This method of directly spraying water between the drill teeth can effectively cool the drill bit 306, and can timely take away the heat generated during drilling, maintain the good performance of the drill bit 306, and extend the service life of the drill bit 306. The atomizing nozzle 313 sprays water between the drill teeth, which can effectively suppress the dust generated during the drilling process while cooling the drill bit, reducing the pollution of the working environment caused by the flying dust, and improving the safety of the operator. working environment and is beneficial to protect the surrounding equipment from dust erosion. Then the second motor 303 and the linear module 301 can be started, and the linear module 301 will drive the second motor 303 between the moving blocks and the driving rod 304 fixedly connected at one end of the output shaft to slide down, and the second motor 303 will drive the drilling head 306 at one end of the driving rod 304 to drill the working surface, and the linear module 301 can provide stable linear motion to ensure the horizontal drop of the drilling head 306 during the drilling process and reduce the shaking during the drilling process.

[0049] According to the above technical solution, the working steps of the embodiment of the present invention are as follows: when drilling, the crawler vehicle 1 drives the crawler wheel 101 and the sprocket 105 fixedly installed at one end to rotate through the driving shaft, and the chain 204 set on the outer surface of the sprocket 105 can make the chain 204 drive one of the driving wheels 202 in the triangular frame 201 to rotate, and then this group of driven driving wheels 202 can drive the crawler strip 203 set on the outer surface to rotate, and the three groups of driving wheels 202 are distributed in a triangular shape in the triangular frame 201, so that the driving wheels 202 can drive the outer surface set of the crawler strip 203 to rotate. The top support of the crawler bar 203 is opened in a triangular shape, so that the crawler vehicle 1 can make the center of gravity of the vehicle more evenly distributed during driving, reducing the risk of the vehicle rolling over. After moving to the position where drilling is required, the first motor 103 and the hydraulic rod 302 can be stopped and started, so that the first motor 103 can twist the connecting plate 104 to turn it over, and it will be pushed and supported by the hydraulic rod 302 together, until the connecting plate 104 is turned over to the required drilling angle, and the water inlet pipe 308 installed on the outer surface of the collar 307 can be connected to the faucet and installed, so that The faucet supplies water to the water inlet pipe 308, so that the water flows along the water inlet pipe 308 through the connecting port 311 provided on the outer surface of the driving rod 304 and enters the water through hole 315 provided in the driving rod 304, and then the water can enter the water inlet 312 in the drilling head 306 through the water through hole 315, and the other end of the water inlet 312 is connected to the three sets of drainage holes 310, and the other end of the drainage hole 310 extends between the drill teeth of the drilling head 306 and is connected to the atomizing nozzle 313, so that the water can flow along the water inlet 312 into the drainage hole 310 and be sprayed by the atomizing nozzle 313. Sprinkling water between the drill teeth can efficiently cool the drill bit 306, and can promptly take away the heat generated during drilling. While cooling the drill bit, it can also effectively suppress the dust generated during the drilling process, reducing the pollution of the working environment caused by flying dust. Then the second motor 303 and the linear module 301 can be started, and the linear module 301 will drive the second motor 303 between the moving blocks and the driving rod 304 fixedly connected to one end of the output shaft to slide down, and the second motor 303 will drive the drill bit 306 at one end of the driving rod 304 to perform drilling operations on the working surface.

[0050] In summary, a crawler-type down-the-hole drilling vehicle of the present invention can spray water mist between the drill teeth during the drilling process. The method of spraying water between the drill teeth can efficiently cool the drill head 306, promptly take away the heat generated during drilling, and effectively suppress the dust generated during the drilling process while cooling the drill bit, thereby reducing the pollution of the working environment caused by flying dust.

[0051] The above shows and describes the basic principle of the present invention. The above is only a preferred embodiment of the present invention and is not intended to limit the present invention. The above embodiments and descriptions in the specification only illustrate the principle of the present invention. Without departing from the scope of the present invention, any modifications, equivalent substitutions and improvements made within the scope of the present invention should be included in the protection scope of the present invention.

Claims

1. A crawler-type down-the-hole drilling vehicle, characterized in that: The invention comprises a crawler vehicle (1), wherein crawler wheels (101) are fixedly mounted on the outer surfaces of the drive shafts at both ends of the crawler vehicle (1), a placement groove (102) is provided on the upper surface of the crawler vehicle (1) in an inwardly concave manner, a first motor (103) is rotatably mounted in the placement groove (102), an output shaft of the first motor (103) is fixedly mounted on both sides of the placement groove (102), connecting plates (104) are fixedly mounted on both sides of the outer surface of the first motor (103), a drilling mechanism (3) is slidably mounted in two groups of the connecting plates (104), the drilling mechanism (3) is driven by the first motor (103) to flip over through the connecting plates (104), and the drilling mechanism (3) slides down along with the direction of the connecting plates (104); Wherein, a sprocket (105) is fixedly mounted on one end of the drive shaft on both sides of the front end of the crawler vehicle (1), the sprocket (105) is drivingly connected to a triangular drive mechanism (2), and the triangular drive mechanism (2) is fixedly mounted on both sides of the front end of the crawler vehicle (1).

2. A crawler-type down-the-hole drilling vehicle according to claim 1, characterized in that: The triangular drive mechanism (2) comprises two sets of triangular frames (201), the two sets of triangular frames (201) being fixedly mounted on both sides of the front end of the crawler vehicle (1) and having a drive shaft passing therethrough, three sets of drive wheels (202) being rotatably mounted in the triangular frames (201), and track strips (203) being sleeved on the outer surfaces of the three sets of drive wheels (202).

3. The crawler-type down-the-hole drilling vehicle according to claim 2, characterized in that: A chain (204) is sleeved on the outer surface of the sprocket (105), and the other end of the chain (204) is sleeved on the outer surface of another set of sprockets (105). The other set of sprockets (105) is fixedly mounted in an embedded groove (205) provided on the outer surface of one set of driving wheels (202).

4. The crawler-type down-the-hole drilling vehicle according to claim 1, characterized in that: The drilling mechanism (3) comprises two groups of linear modules (301), the two groups of linear modules (301) are fixedly mounted on one end of two groups of connecting plates (104), a second motor (303) is fixedly mounted between the moving blocks of the two groups of linear modules (301), a driving rod (304) is fixedly mounted on one end of the output shaft of the second motor (303), a threaded opening (309) is provided at one end of the driving rod (304), and a drilling head (306) is mounted on the inner thread of the threaded opening (309).

5. The crawler-type down-the-hole drilling vehicle according to claim 4, characterized in that: One end of the two sets of linear modules (301) is rotatably connected to the piston rod of a hydraulic rod (302), and the hydraulic rod (302) is rotatably mounted on the upper surface of the crawler vehicle (1).

6. The crawler-type down-the-hole drilling vehicle according to claim 5, characterized in that: The hydraulic rod (302) is driven synchronously with the first motor (103) via a hydraulic control valve.

7. The crawler-type down-the-hole drilling vehicle according to claim 4, characterized in that: The outer front end portion of the driving rod (304) slides through a guide ring (305), and the guide ring (305) is fixedly installed between two sets of connecting plates (104).

8. The crawler-type down-the-hole drilling vehicle according to claim 7, characterized in that: A water hole (315) is provided in the driving rod (304), and a connecting port (311) is provided on the outer surface of the driving rod (304) in an embedded manner. The connecting port (311) is connected to the water hole (315), and a collar (307) is rotatably sealed on the outer surface of the connecting port (311). A water inlet pipe (308) is installed on the outer surface of the collar (307).

9. The crawler-type down-the-hole drilling vehicle according to claim 8, characterized in that: Connecting arms (314) are fixedly mounted on both sides of the outer surface of the collar (307); the other ends of the two groups of connecting arms (314) are fixedly mounted on one end of the moving blocks of the two groups of linear modules (301); the linear modules (301) push the second motor (303) and the driving rod (304) and simultaneously push the connecting arms (314); the connecting arms (314) drive the collar (307) to be sleeved on the outer surface of the connecting port (311).

10. The crawler-type down-the-hole drilling vehicle according to claim 4, characterized in that: A water inlet (312) is provided in the drilling head (306), and the water inlet (312) can be installed in the threaded port (309) of the drilling head (306) through a thread to communicate with the water through hole (315). Three groups of drainage holes (310) are provided at one end of the water inlet (312), and the three groups of drainage holes (310) are connected to the drill teeth of the drilling head (306) and are connected to an atomizing nozzle (313).

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