A tire-mounted down-the-hole drill

Abstract

The application discloses a tire type roof bolter and relates to the technical field of roof bolters.The tire type roof bolter comprises a vehicle frame, a cab and an air compressor, the cab is installed on the vehicle frame, the air compressor is installed on the vehicle frame to provide an air source for the whole machine, a tire type walking system is installed on the vehicle frame and comprises a driving mechanism, a steering system and a suspension system, and an adjusting mechanism is connected to the vehicle frame.The tire type roof bolter can effectively improve the mobility of the device through the tire type walking system, and the adjusting mechanism which is composed of a universal joint shaft, a swing arm and a plurality of hydraulic rods drives the movement of a mounting rack and a propulsion system, so that the drill arm can be greatly deflected in a horizontal plane and the height can be flexibly adjusted, thereby enabling the roof bolter to cover a wide working area without frequent movement of the whole vehicle, greatly improving the efficiency and precision of hole searching and positioning and better satisfying actual use requirements.

Description

Technical Field

[0001] This invention relates to the field of down-the-hole drilling rig technology, specifically a tire-mounted down-the-hole drilling rig. Background Technology

[0002] Rock drilling and blasting machinery is widely used in rock and soil fracturing fields such as mining, hydropower, and transportation. During mining operations, the geological conditions of the deposit, underground goaf areas, and slope geotechnical engineering conditions may differ from the initial design plan. To adjust and optimize mining plans in a timely manner to adapt to changes and improve economic efficiency, mining operators need to understand the goaf areas in advance and incorporate underground cavities and mining boundaries into dynamic management. Currently, the mainstream international technology is down-the-hole drilling for borehole probing and sampling, directly measuring and investigating the conditions of the original underground goaf area in the center of the stope. This aims to reduce risks, increase mining output, reduce stripping, and improve the recoverable resources, thereby increasing the economic efficiency of mining. However, existing down-the-hole drilling rigs still have some shortcomings in practical use:

[0003] The limited adjustment range of the drill arm and its inflexible positioning affect the accuracy of the drilling position and the coverage of the work area.

[0004] The support legs are usually simple hydraulic cylinder direct-push type, which have a small contact area on soft or uneven ground, making them prone to sinking or slipping, which not only affects drilling accuracy but also poses safety hazards.

[0005] Dust control during drilling is inadequate, and ordinary dust removal systems are prone to clogging due to the inhalation of large particles, requiring frequent maintenance and affecting continuous operation efficiency. Summary of the Invention

[0006] The purpose of this invention is to provide a tire-mounted down-the-hole drill to solve the problems mentioned in the background art.

[0007] To achieve the above objectives, the present invention provides the following technical solution: a tire-mounted down-the-hole drill rig, comprising a frame, a cab, and an air compressor. The cab is mounted on the frame, and the air compressor is mounted on the frame to provide an air source for the entire machine. A tire-mounted walking system is mounted on the frame, and the tire-mounted walking system includes a drive mechanism, a steering system, and a suspension system. An adjustment mechanism is connected to the frame, and the adjustment mechanism is interconnected with a mounting frame to achieve angle adjustment of the mounting frame. A propulsion system is mounted on the mounting frame, and the propulsion system is used to achieve rotational and vertical driving of the drill rod. A drill bit is fixed to the lower end of the drill rod. A filter box is mounted on the frame, and a support mechanism is also mounted on the frame.

[0008] Preferably, the adjustment mechanism includes a universal joint rotatably connected to the frame, and the universal joint is rotatably connected to the swing arm, the swing arm to the mounting bracket, the swing arm to the output shaft of the first hydraulic rod, the first hydraulic rod to the frame, the swing arm to the second hydraulic rod, the output end of the second hydraulic rod to the swing arm, the swing arm to the swing arm, the swing arm to the mounting bracket, the swing arm to the output end of the third hydraulic rod, and the third hydraulic rod to the frame. The maximum forward deflection angle of the swing arm is 15°, and the maximum backward deflection angle of the swing arm is 45°. By extending the first hydraulic rod, the vertical angle between the swing arm and the frame can be adjusted; by extending and retracting the second hydraulic rod, the angle between the swing arm and the mounting bracket can be adjusted; and by extending and retracting the third hydraulic rod, the horizontal angle of the swing arm can be adjusted. This allows for drilling operations to adapt to different terrains, effectively improving the adaptability of the device.

[0009] Preferably, the mounting frame is equipped with a dustproof mechanism, which includes a dust cover fixed to the propulsion system. The dust cover is slidably connected to the drill rod, and a separation cylinder is fixed on the dust cover. The separation cylinder is also fixed with a connection port, which is connected to the filter box via a conduit and a fan. A mounting rod is connected to the bearing inside the separation cylinder, and fan plates are fixed at equal angles on the mounting rod. The dust cover can effectively prevent dust from overflowing during drilling. In conjunction with the filter box, it can achieve dust filtration. Furthermore, the fan plates are driven by wind to rotate, which can beat large particles of gravel, preventing them from entering the pipes and causing blockages that would affect the normal operation of the device.

[0010] Preferably, the support mechanism includes a fourth hydraulic rod fixed to the frame, and a fixing plate is fixed to the output end of the fourth hydraulic rod. The fixing plate is connected to the base plate through a first spring. At the same time, a first anti-slip tooth is evenly fixed to the lower end of the base plate. A self-locking mechanism is also installed on the base plate. Through the elastic action of the first spring, a basic guarantee can be provided for adjusting the distance between the fixing plate and the base plate. Through the action of the first anti-slip tooth, the adhesion between the base plate and the ground can be increased, avoiding side slippage caused by vibration during the installation process.

[0011] Preferably, a cylinder is fixed to the upper surface of the base plate, and the cylinder is located outside the first spring. The cylinder and the fixed cylinder are slidably connected. At the same time, the fixed cylinder is fixed to the lower surface of the fixed plate. When the fixed plate moves relative to the base plate, the sliding guide effect between the cylinder and the fixed cylinder can effectively ensure the stability of the movement of the fixed plate.

[0012] Preferably, the bottom plate is connected to a rotating shaft via a side bearing, and a support plate is fixed on the rotating shaft. The support plate is uniformly fixed with second anti-slip teeth, and four support plates are distributed on the side of the bottom plate. Through the function of the support plates, the support area of ​​the device can be increased when supporting the entire device, thereby effectively preventing the bottom plate from sinking or causing instability, and ensuring the stable operation of the device.

[0013] Preferably, the support plate is rotatably connected to one end of the connecting rod, and the other end of the connecting rod is rotatably connected to the vertical rod. The vertical rod and the fixed plate are slidably connected. At the same time, a second spring is fixed between the vertical rod and the fixed plate. Through the action of the connecting rod, a basic guarantee can be provided for the storage and unfolding of the support plate. Through the sliding action between the vertical rod and the fixed plate, a basic guarantee can be provided for the support plate to be supported at different angles, so as to ensure that the support plate fits better with the ground and effectively guarantees the support effect of the support plate.

[0014] Preferably, the self-locking mechanism includes gears fixed on the rotating shaft, with the gears and support plates distributed in a one-to-one correspondence. The gears cooperate with the locking plate to achieve a locking and positioning function. At the same time, the locking plate and the base plate are slidably connected. Through the locking and positioning function between the gears and the locking plate, the unfolded state of the support plate can be locked, thereby ensuring the stability of the support plate and thus ensuring the stability of the support of the device.

[0015] Preferably, a sliding rod is fixed on the toothed plate, and the sliding rod is slidably connected to the base plate and to the partition plate fixed in the base plate. At the same time, a third spring is fixed between the sliding rod and the partition plate. Through the elastic action of the third spring, a basic force can be provided for the automatic reset of the toothed plate, thereby providing a basic guarantee for the automatic unlocking between the gear and the toothed plate.

[0016] Preferably, the slide rod and the inclined ring are slidably connected, and the inclined ring is fixed on the outside of the fixed cylinder. The sliding action between the slide rod and the inclined ring can provide a basic force for the movement of the gear, thereby providing a basic guarantee for the automatic engagement and locking between the gear and the tooth plate.

[0017] Compared with the prior art, the beneficial effects of the present invention are:

[0018] 1. This tire-mounted down-the-hole drill rig, through its tire-mounted walking system, can effectively improve the mobility of the device. Combined with the adjustment mechanism consisting of a universal joint, a swing arm, and multiple sets of hydraulic rods, it drives the mounting frame and propulsion system to move, realizing a large-scale deflection of the drill arm in the horizontal plane and flexible height adjustment. This allows the drill rig to cover a wide working area without frequent movement of the entire vehicle, greatly improving the efficiency and accuracy of hole finding and positioning, and better meeting the actual use needs.

[0019] 2. This tire-mounted down-the-hole drill rig, through an improved support mechanism, uses a fourth hydraulic rod to drive the base plate to contact the ground. The four support plates automatically unfold using the cooperation of connecting rods, vertical rods, and a second spring, significantly increasing the ground contact area and effectively preventing sinking on soft ground. Secondly, the support plates can achieve adaptive angle adjustment through the action of the vertical rods and second springs. Even on sloping or uneven ground, each support plate can independently rotate to fully contact the ground, ensuring the stability and reliability of the support. Finally, through a linked self-locking mechanism, the angle of the support plates can be automatically locked after the support is in place, converting the flexible support into a rigid support, greatly enhancing the overall stability during operation.

[0020] 3. This tire-mounted down-the-hole drill rig's dust control mechanism not only guides drilling dust into the filter box through a dust cover and negative pressure suction to purify the working environment, but also features freely rotating fan plates within the airflow channel. Driven by airflow, these fan plates pre-treat the inhaled dust, effectively striking and separating large particles of gravel to prevent them from entering subsequent pipes and fans. This fundamentally avoids pipe blockage problems, ensuring the continuous and efficient operation of the dust removal system and reducing maintenance costs. Attached Figure Description

[0021] Figure 1 This is a front view of the mounting bracket of the present invention in its vertical state;

[0022] Figure 2 This is a top view of the mounting bracket of the present invention in a vertical position;

[0023] Figure 3 This is a front view of the mounting bracket of the present invention in a horizontal state;

[0024] Figure 4 This is a frontal cross-sectional three-dimensional structural diagram of the dustproof mechanism of the present invention;

[0025] Figure 5 This is a frontal three-dimensional structural diagram of the support mechanism of the present invention;

[0026] Figure 6 This is a schematic diagram of the three-dimensional structure of the base plate of the present invention, viewed from below.

[0027] Figure 7 For the present invention Figure 6 Enlarged structural diagram at point A in the middle;

[0028] Figure 8 This is a schematic diagram of the cylindrical cross-sectional three-dimensional structure of the present invention from a bottom view.

[0029] In the diagram: 1. Chassis; 2. Cab; 3. Air compressor; 4. Tire-type walking system; 5. Adjustment mechanism; 501. Universal coupling; 502. Swing arm; 503. First hydraulic rod; 504. Second hydraulic rod; 505. Swing arm; 506. Third hydraulic rod; 6. Mounting frame; 7. Propulsion system; 8. Drill rod; 9. Drill bit; 10. Dustproof mechanism; 1001. Dust cover; 1002. Separator cylinder; 1003. Connection port; 1004. Mounting rod; 1005. Fan plate; 11. Filter box; 12. Support mechanism; 1201, Fourth hydraulic rod; 1202, Fixed plate; 1203, First spring; 1204, Base plate; 1205, First anti-slip tooth; 1206, Cylinder; 1207, Fixed cylinder; 1208, Rotating shaft; 1209, Support plate; 1210, Second anti-slip tooth; 1211, Connecting rod; 1212, Vertical rod; 1213, Second spring; 13, Self-locking mechanism; 1301, Gear; 1302, Gear plate; 1303, Slide rod; 1304, Partition plate; 1305, Third spring; 1306, Inclined ring. Detailed Implementation

[0030] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0031] Please see Figures 1-8 This invention provides a technical solution: a tire-mounted down-the-hole drill rig, comprising a frame 1, a cab 2, and an air compressor 3. The cab 2 is mounted on the frame 1, and the air compressor 3 is mounted on the frame 1 to provide air for the entire machine. A tire-mounted walking system 4 is mounted on the frame 1, and the tire-mounted walking system 4 includes a drive mechanism, a steering system, and a suspension system. An adjustment mechanism 5 is connected to the frame 1, and the adjustment mechanism 5 is interconnected with a mounting frame 6 to realize the angle adjustment function of the mounting frame 6. A propulsion system 7 is mounted on the mounting frame 6, and the propulsion system 7 is used to realize the rotational drive and vertical drive function of the drill rod 8. A drill bit 9 is fixed at the lower end of the drill rod 8. A filter box 11 is mounted on the frame 1, and a support mechanism 12 is also mounted on the frame 1.

[0032] The adjustment mechanism 5 includes a universal joint 501 rotatably connected to the frame 1, a swing arm 502 rotatably connected to the swing arm 502, a mounting bracket 6 rotatably connected to the swing arm 502, a first hydraulic rod 503 output shaft rotatably connected to the frame 1, a second hydraulic rod 504 rotatably connected to the second hydraulic rod 504 output end rotatably connected to a swing rod 505, a swing rod 505 rotatably connected to the swing arm 502, a mounting bracket 6 rotatably connected to the third hydraulic rod 506 output end rotatably connected to the frame 1, and a maximum forward deflection angle of 15° for the swing arm 502, and a maximum backward deflection angle of 45° for the swing arm 502.

[0033] When using this tire-mounted down-the-hole drill rig, such as Figures 1-8 As shown, the entire device can first be moved to the drilling location by the tire-type walking system 4. During the walking process, the tires can effectively increase the walking speed of the device, and the steering system can realize the walking and steering function of the entire device. The suspension system can reduce the rigid impact of the road surface on the whole machine during the walking process, ensuring the stability of the device. When the device moves to the preset position, the second hydraulic rod 504 extends and, in conjunction with the rotation of the swing arm 505, can drive the mounting frame 6 to rotate from a horizontal state to a vertical state. The tilt angle of the swing arm 502 can be adjusted by extending the first hydraulic rod 503, thereby realizing the height adjustment of the mounting frame 6. Furthermore, by controlling the extension and retraction of the third hydraulic rod 506, the swing arm 502 can be rotated in the horizontal direction, thereby realizing the adjustment of the horizontal angle of the mounting frame 6, which greatly improves the efficiency and accuracy of hole finding and positioning.

[0034] The support mechanism 12 includes a fourth hydraulic rod 1201 fixed to the frame 1, and a fixing plate 1202 is fixed to the output end of the fourth hydraulic rod 1201. The fixing plate 1202 is connected to the base plate 1204 through a first spring 1203. At the same time, the lower end of the base plate 1204 is uniformly fixed with first anti-slip teeth 1205. A self-locking mechanism 13 is also installed on the base plate 1204. A cylinder 1206 is fixed to the upper surface of the base plate 1204. The cylinder 1206 is located outside the first spring 1203, and there is a sliding connection between the cylinder 1206 and the fixing cylinder 1207. The fixing cylinder 1207 is fixed to the fixing plate. The lower end face of 1202; a rotating shaft 1208 is connected to the side bearing of the base plate 1204, and a support plate 1209 is fixed on the rotating shaft 1208. Second anti-slip teeth 1210 are evenly fixed on the support plate 1209, and four support plates 1209 are distributed on the side of the base plate 1204; one end of the support plate 1209 is rotatably connected to the connecting rod 1211, and the other end of the connecting rod 1211 is rotatably connected to the vertical rod 1212. The vertical rod 1212 is slidably connected to the fixed plate 1202, and a second spring 1213 is also fixed between the vertical rod 1212 and the fixed plate 1202.

[0035] After the mounting bracket 6 is adjusted, when drilling, if... Figures 1-8As shown, by controlling the extension of the fourth hydraulic rod 1201, the fixed plate 1202 and the base plate 1204 are moved downwards. When the base plate 1204 contacts the ground, the fourth hydraulic rod 1201 continues to extend, causing the fixed plate 1202 to move downwards relative to the base plate 1204. Combined with the sliding guide effect between the cylinder 1206 and the fixed cylinder 1207, the stability of the downward movement of the fixed plate 1202 is ensured. When the fixed plate 1202 moves downwards relative to the base plate 1204, the vertical rod 1212 moves downwards synchronously with the fixed plate 1202 due to the action of the second spring 1213. Combined with the transmission action of the connecting rod 1211 and the rotation action of the rotating shaft 1208, the side support plate 1209 of the base plate 1204 is rotated outwards under force. When the ground is flat, auxiliary support is achieved when the support plate 1209 flips to a horizontal state and contacts the ground. Through the action of the support plate 1209, the support can be effectively increased. The area is increased, thus effectively reducing the problem of the base plate 1204 sinking. During the device support process, the first anti-slip tooth 1205 and the second anti-slip tooth 1210 can effectively increase the friction between the base plate 1204 and the support plate 1209 and the ground, thus effectively preventing the device from sliding due to subsequent working vibration. When the support plate 1209 contacts the ground, the fourth hydraulic rod 1201 continues to extend, which can make the fixed cylinder 1207 continue to slide downward relative to the cylinder 1206 until the fixed cylinder 1207 contacts the base plate 1204, thus changing the flexible contact between the base plate 1204 and the fixed plate 1202 into a rigid contact, thereby ensuring the support effect of the device. After the fixed cylinder 1207 contacts the base plate 1204, the fourth hydraulic rod 1201 continues to extend, which can realize the lifting of the frame 1 until the tires on the tire-type walking system 4 separate from the ground, thus realizing the support function of the entire device.

[0036] When the ground is uneven, taking the case where the ground is level on the left and higher on the right, during the rotation of the support plate 1209 under force, when the right support plate 1209 contacts the inclined ground, the left support plate 1209 is not in contact with the ground. By extending the fourth hydraulic rod 1201, combined with the sliding action between the vertical rod 1212 and the fixed plate 1202 and the elastic action of the second spring 1213, the left support plate 1209 can continue to rotate while maintaining the different angles of the right and right support plates 1209, until the left support plate 1209 contacts the ground and achieves positioning. According to the above principle, when all support plates 1209 are in contact with the ground, the extension of the fourth hydraulic rod 1201 can make the fixed cylinder 1207 contact the bottom plate 1204 to achieve rigid support, ensuring the stability of the entire device. Moreover, through the adaptive angle adjustment of the support plate 1209, it can better adapt to the support function of complex terrain and ensure the stability of the device.

[0037] The self-locking mechanism 13 includes a gear 1301 fixed on a rotating shaft 1208, with a one-to-one correspondence between the gear 1301 and the support plate 1209. The gear 1301 cooperates with the locking plate 1302 to achieve a locking and positioning function, while the locking plate 1302 is slidably connected to the base plate 1204. A slide rod 1303 is fixed on the locking plate 1302, and the slide rod 1303 is slidably connected to the base plate 1204. The slide rod 1303 is also slidably connected to the partition 1304 fixed inside the base plate 1204, and a third spring 1305 is fixed between the slide rod 1303 and the partition 1304. The slide rod 1303 is slidably connected to the inclined ring 1306, and the inclined ring 1306 is fixed to the outside of the fixed cylinder 1207.

[0038] When supporting the entire device, after all the support plates 1209 contact the ground, the fixed cylinder 1207 continues to move down until it contacts the base plate 1204. During this process, the downward movement of the fixed cylinder 1207 can simultaneously drive the inclined ring 1306 to move down. When the inclined surface of the inclined ring 1306 contacts and slides with the sliding rod 1303, the sliding rod 1303 and the toothed plate 1302 are forced to slide outwards from the base plate 1204. When the fixed cylinder 1207 contacts the base plate 1204, the sliding rod 1303 slides from the inclined surface of the inclined ring 1306 to the plane of the inclined ring 1306. At this time, the toothed plate 1302 engages with the gear 1301 to lock the rotating shaft 1208, thereby locking the angle of the support plate 1209 and ensuring the stability of the support plate 1209.

[0039] The mounting frame 6 is equipped with a dustproof mechanism 10, which includes a dust cover 1001 fixed on the propulsion system 7. The dust cover 1001 is slidably connected to the drill rod 8. A separation cylinder 1002 is fixed on the dust cover 1001, and a connection port 1003 is fixed on the separation cylinder 1002. The connection port 1003 is connected to the filter box 11 through a duct and a fan. A mounting rod 1004 is connected to the separation cylinder 1002 by a bearing, and a fan plate 1005 is fixed at equal angles on the mounting rod 1004.

[0040] After the device is supported, the drilling rod 8 and drill bit 9 are rotated and moved downward by the propulsion system 7 to achieve drilling. During the drilling process, the dust cover 1001 can cover the flying dust to prevent dust from splashing. The fan can send the flying dust into the filter box 11 through the connection port 1003 and the duct for filtration, preventing dust from polluting the environment. When the dust flows with the airflow, the installation rod 1004 and the fan plate 1005 can rotate under the action of the airflow. The fan plate 1005 can knock out larger particles of gravel in the dust, preventing large particles of gravel from entering the pipe and causing blockage, which would affect the normal operation of the device, thus effectively ensuring the service life of the device.

[0041] It should be noted that, in this document, the terms “comprising,” “including,” or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0042] This article uses specific examples to illustrate the principles and implementation methods of the present invention. The above examples are only for the purpose of helping to understand the method and core ideas of the present invention. The above descriptions are only preferred embodiments of the present invention. It should be noted that due to the limitations of textual expression, while there are objectively infinite specific structures, those skilled in the art can make several improvements, modifications, or changes without departing from the principles of the present invention, and can also combine the above technical features in an appropriate manner. These improvements, modifications, changes, or combinations, or the direct application of the inventive concept and technical solution to other situations without modification, should all be considered within the scope of protection of the present invention.

Claims

1. A tire-mounted down-the-hole drill rig, comprising a frame (1), a cab (2), and an air compressor (3), wherein the cab (2) is mounted on the frame (1), and the air compressor (3) is mounted on the frame (1) to provide an air source for the entire machine, characterized in that: The frame (1) is equipped with a tire-type walking system (4), which includes a drive mechanism, a steering system, and a suspension system. An adjustment mechanism (5) is connected to the frame (1), and the adjustment mechanism (5) is connected to the mounting frame (6) to realize the angle adjustment of the mounting frame (6). A propulsion system (7) is installed on the mounting frame (6), which is used to realize the rotational and vertical driving of the drill rod (8). A drill bit (9) is fixed at the lower end of the drill rod (8). A filter box (11) is installed on the frame (1), and a support mechanism (12) is also installed on the frame (1). The system includes a fourth hydraulic rod (1201) fixed to the frame (1), and a fixing plate (1202) fixed to the output end of the fourth hydraulic rod (1201). The fixing plate (1202) is connected to the base plate (1204) via a first spring (1203). At the same time, the lower end of the base plate (1204) is uniformly fixed with first anti-slip teeth (1205). A self-locking mechanism (13) is also installed on the base plate (1204). The self-locking mechanism (13) includes a gear (1301) fixed to the rotating shaft (1208). The gear (1301) and the support plate (1209) are distributed in a one-to-one correspondence. The gear (1301) and the locking plate (1302) are also connected in a one-to-one correspondence. The locking and positioning functions are achieved by the locking plate (1302) and the base plate (1204). A sliding rod (1303) is fixed on the locking plate (1302), and the sliding rod (1303) is slidably connected to the base plate (1204). The sliding rod (1303) is also slidably connected to the partition plate (1304) fixed inside the base plate (1204). A third spring (1305) is fixed between the sliding rod (1303) and the partition plate (1304). The sliding rod (1303) is slidably connected to the inclined ring (1306), which is fixed to the outside of the fixed cylinder (1207). The base plate (1204)... 04) A rotating shaft (1208) is connected to the side bearing, and a support plate (1209) is fixed on the rotating shaft (1208). The support plate (1209) is evenly fixed with second anti-slip teeth (1210). At the same time, four support plates (1209) are distributed on the side of the base plate (1204). The support plate (1209) is rotatably connected to one end of the connecting rod (1211), and the other end of the connecting rod (1211) is rotatably connected to the vertical rod (1212). The vertical rod (1212) is slidably connected to the fixed plate (1202). At the same time, a second spring (1213) is also fixed between the vertical rod (1212) and the fixed plate (1202).

2. The tire-mounted down-the-hole drill rig according to claim 1, characterized in that: The adjustment mechanism (5) includes a universal joint (501) rotatably connected to the frame (1), and the universal joint (501) is rotatably connected to the swing arm (502), and the swing arm (502) is rotatably connected to the mounting bracket (6). Simultaneously, the swing arm (502) is rotatably connected to the output shaft of the first hydraulic rod (503), the first hydraulic rod (503) is rotatably connected to the frame (1), and the swing arm (502) is rotatably connected to the second hydraulic rod (504). The output end of the hydraulic rod (504) is rotatably connected to the swing rod (505), and the swing rod (505) is rotatably connected to the swing arm (502). At the same time, the swing rod (505) is rotatably connected to the mounting bracket (6). The swing arm (502) is rotatably connected to the output end of the third hydraulic rod (506), and the third hydraulic rod (506) is rotatably connected to the frame (1). The maximum forward deflection angle of the swing arm (502) is 15°, and the maximum backward deflection angle of the swing arm (502) is 45°.

3. A tire-mounted down-the-hole drill rig according to claim 1, characterized in that: The mounting frame (6) is equipped with a dustproof mechanism (10), and the dustproof mechanism (10) includes a dustproof cover (1001) fixed on the propulsion system (7), and the dustproof cover (1001) is slidably connected to the drill rod (8), and a separation cylinder (1002) is fixed on the dustproof cover (1001), and a connection port (1003) is fixed on the separation cylinder (1002). The connection port (1003) is connected to the filter box (11) through a duct and a fan. The separation cylinder (1002) is connected to a mounting rod (1004) by a bearing, and a fan plate (1005) is fixed at an equal angle on the mounting rod (1004).

4. A tire-mounted down-the-hole drill rig according to claim 1, characterized in that: A cylinder (1206) is fixed on the upper surface of the base plate (1204), and the cylinder (1206) is located outside the first spring (1203). The cylinder (1206) and the fixed cylinder (1207) are slidably connected, and the fixed cylinder (1207) is fixed on the lower surface of the fixed plate (1202).

Images