Double-machine-head rock drilling carriage for mine

Abstract

The invention relates to the technical field of rock drilling equipment, in particular to a mine double-head rock drilling carriage which comprises a rock drilling carriage supporting assembly, a drill rod extending and positioning assembly is installed at the top of the rock drilling carriage supporting assembly through a mechanical arm assembly, and auxiliary positioning assemblies are installed on the two sides of the drill rod extending and positioning assembly. The drill rod extending and positioning assembly comprises a positioning frame, a fixing clamping rod is fixedly installed on one side of the positioning frame, and an inner triangular clamping rod is fixedly installed at the end, away from the positioning frame, of the fixing clamping rod. The split type triangular positioning frame is driven by the hollow sliding block to slide left and right along the sliding rod to finely adjust the position, then the positioning requirements of different positioning positions are met, and the actual state of the split type triangular positioning frame is controlled according to the states of the magnetic suction type turbine threaded rod and the magnetic suction assembly; the ground clamping stability of the split type triangular positioning frame is better improved, and the split type triangular positioning frame is suitable for different mine grounds.

Description

Technical Field

[0001] The present invention relates to the technical field of rock drilling equipment, in particular to a double-head rock drilling vehicle for mines. Background Art

[0002] As shallow mines are often exploited, leading to the depletion of mineral resources, global mining depths are continuously increasing. Due to the deep burial depth of the ore bodies, the high pressure of the surrounding rock, and the complex development of joints and fissures, traditional single-bit drilling rigs (with low drilling efficiency and rapid drill bit wear) are unable to meet demand. The dual-head design, through alternating or simultaneous operation of the two drill bits, can increase drilling footage per unit time (by 30%-50%) and shorten the mining cycle.

[0003] Since there are extremely broken rock layers deep in the mine, the existing dual-head rock drilling rigs in the mine start with the drill bit to drill holes during the process of mining the rock layers. As the drill bit mines deeper (hole depth > 4m), the drill bit's operating support is insufficient, so the drill rod needs to be replaced frequently (taking > 10 minutes / time). In the process of the drill rod moving outward from the ultra-deep hole, the extremely broken rock layer around the hole is prone to collision with the drill rod, and the other drill bit, as the support point for the robotic arm and the drill hole, is prone to position deviation under the influence of the other drill rod that replaces the drill bit, thereby affecting the overall hole opening accuracy of the drilling rig.

[0004] Therefore, we propose a double-head rock drilling vehicle for mining. Summary of the Invention

[0005] The purpose of the present invention is to address the problems existing in the background technology and to provide a mining double-head rock drilling vehicle.

[0006] The technical solution of the present invention is: a mining double-head rock drilling rig, comprising a rock drilling rig support assembly, a drill rod extension and positioning assembly being installed on the top of the rock drilling rig support assembly via a mechanical arm assembly, and auxiliary positioning assemblies being installed on both sides of the drill rod extension and positioning assembly; The drill rod extension positioning assembly includes a positioning frame, a fixed clamping rod is fixedly installed on one side of the positioning frame, an inner triangular clamping rod is fixedly installed on the end of the fixed clamping rod away from the positioning frame, and slide rail frames are fixedly installed on the upper and lower sides of the inner triangular clamping rod; The worm gear is meshed with the first turbine gear and is arranged on the inside of the L-shaped positioning box. The worm gear is meshed with the first turbine gear and is arranged in a meshing state with the first turbine gear. The worm gear is meshed with a magnetic turbine threaded rod on the side away from the L-shaped positioning box. A hollow slider is slidably installed on the inside of the slide rod, and the magnetic turbine threaded rod is threadedly installed on the inside of the hollow slider. The inside of the hollow slider is slidably installed with a split triangular positioning frame through the magnetic turbine threaded rod.

[0007] Optionally, a steering gear is fixedly installed on the outer side of the L-shaped positioning box, and a gear assembly is rotatably installed on the outer side of the positioning telescopic block, and the gear assembly is arranged in a meshing state with the steering gear.

[0008] Optionally, the robotic arm assembly is installed at the top of the rock drilling vehicle support assembly, and the robotic arm assembly includes a secondary robotic arm hinged on the top of the positioning frame, a third hydraulic rod is hinged between the secondary robotic arm and the positioning frame, and a main robotic arm is hinged at one end of the secondary robotic arm away from the positioning frame, and a second hydraulic rod is hinged between the main robotic arm and the secondary robotic arm.

[0009] Optionally, a robotic arm base is hinged to the bottom of the main robotic arm, and two first hydraulic rods are hinged between the robotic arm base and the main robotic arm.

[0010] Optionally, the rock drilling vehicle support assembly includes a rock drilling vehicle shell fixedly mounted on the bottom end of the main mechanical arm, a console is fixedly mounted on the top of the rock drilling vehicle shell, and four wheels are provided at the bottom end of the rock drilling vehicle shell.

[0011] Optionally, a shielding positioning plate is fixedly installed on one side of the inner triangular clamping rod facing the positioning frame, and a positioning box is slidably installed on the outer side of the slide rail frame.

[0012] Optionally, two sets of pulleys are fixedly mounted on one side of the positioning box body facing the inner triangular clamping rod, and the pulleys are slidably mounted on the side of the slide rail frame.

[0013] Optionally, the positioning box is rotatably installed on one side of the pulley, the outer side of the first gear is meshed with a rack, the rack is fixedly installed on the top of the slide rail frame, a first telescopic positioning belt is fixedly installed between the positioning box and the slide rail frame, and a telescopic belt positioning frame is fixedly installed on the outer side of the first telescopic positioning belt.

[0014] Optionally, a vertical positioning plate is fixedly installed on the outside of the positioning box, a drill rod clamping frame is slidably installed on the outside of the vertical positioning plate, a second telescopic positioning belt is fixedly installed between the telescopic belt positioning frame and the vertical positioning plate, a first telescopic positioning belt is arranged inside the drill rod clamping frame, a drill rod positioning tube is slidably installed on the outside of the first telescopic positioning belt, and the drill rod positioning tube is fixedly installed on the outside of the vertical positioning plate.

[0015] Optionally, a vehicle body positioning assembly is installed on the outside of the rock drilling vehicle support assembly, and the vehicle body positioning assembly includes two groups of crossbeam frames fixedly installed on the front and rear sides of the rock drilling vehicle shell, and two groups of limit clamps are fixedly installed on both sides of the crossbeam frames. Steel beam positioning feet are hinged on both sides of the crossbeam frames, and a fourth hydraulic telescopic rod is hinged between the steel beam positioning feet and the crossbeam frames, and an adaptive pressure plate is provided at the bottom of the steel beam positioning feet.

[0016] In summary, this application includes at least one of the following beneficial technical effects: The split triangular positioning frame is driven by the hollow slider to slide left and right along the slide bar to fine-tune its position, thereby adapting to the positioning requirements of different positioning positions. The actual state of the split triangular positioning frame is controlled according to the state of the magnetic turbine threaded rod and the magnetic assembly to better improve the stability of the split triangular positioning frame on the ground clamping, which is suitable for different mine surfaces. When the positioning box drives the vertical positioning plate to adjust its orientation, the stability of the drill bit in left and right position adjustment is improved. At the same time, the hydraulic pushing system on the top of the drill rod clamping frame drives the first telescopic positioning belt to move up and down, thereby adjusting the stability of the drill bit in up and down position adjustment. The first telescopic positioning belt is limited by the pulling distance between the second telescopic positioning belt and the telescopic belt positioning frame, thereby facilitating adjustment for different drilling positions and reducing the difficulty of drilling position adjustment. The fourth hydraulic telescopic rod drives the steel beam positioning foot to move toward the ground through hydraulic drive until the steel beam positioning foot and the adaptive pressure plate compact the ground, thereby improving the stability of the entire equipment during drilling and reducing the interference of the entire equipment on drilling. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a structural diagram of a double-head rock drilling rig for a mine; Figure 2 For the present invention Figure 1 Enlarged view of the middle A area; Figure 3 This is a schematic structural diagram of the drill rod clamping frame of the present invention; Figure 4 Schematic diagram of the structure of the auxiliary robotic arm of the present invention; Figure 5Schematic diagram of the structure of the first telescopic positioning belt of the present invention; Figure 6 Schematic diagram of the structure of the triangular positioning frame of the present invention; Figure 7 This is a schematic structural diagram of the hydraulic push rod of the present invention; Figure 8 Schematic diagram of the structure of the slide bar of the present invention; Figure 9 This is a schematic structural diagram of a turbine threaded rod of the present invention; Figure 10 Schematic diagram of the structure of the second telescopic positioning belt of the present invention; Figure 11 It is a structural schematic diagram of the positioning frame of the present invention; Figure 12 The present invention Figure 10 Enlarged view of the middle B area; Figure 13 It is a structural schematic diagram of the vehicle body positioning assembly of the present invention.

[0018] Figure 1: 1. Drilling vehicle support assembly; 101. Drilling vehicle housing; 102. Control console; 103. Wheel; 2. Mechanical arm assembly; 201. Main mechanical arm; 202. Mechanical arm base; 203. First hydraulic rod; 204. Second hydraulic rod; 205. Auxiliary mechanical arm; 206. Third hydraulic rod; 3. Drill rod extension positioning assembly; 301. Positioning frame; 302. Vertical positioning plate; 303. Positioning box; 304. Slide frame; 305. Drill rod positioning tube; 306. First telescopic positioning belt; 307. Drill rod clamping frame; 308. Telescopic belt positioning frame; 309. Second telescopic positioning belt; 310. Shielding positioning plate; 311. Fixed Clamping rod; 312, inner triangular clamping rod; 313, pulley; 314, first gear; 315, rack; 4, auxiliary positioning assembly; 401, hydraulic push rod; 402, positioning telescopic block; 403, L-shaped positioning box; 404, hollow slider; 405, split triangular positioning frame; 406, inner triangular slide; 407, auxiliary forward and reverse motor; 408, magnetic turbine threaded rod; 409, first turbine; 410, slide; 411, worm; 412, adjustment gear; 5, vehicle body positioning assembly; 501, crossbeam frame; 502, fourth hydraulic telescopic rod; 503, limit clamp; 504, steel beam positioning foot; 505, adaptive pressure plate. DETAILED DESCRIPTION

[0019] The technical solution of the present application is further described in detail below with reference to the accompanying drawings and specific embodiments.

[0020] The components of the embodiments of the present application generally described and shown in the drawings herein may be arranged and designed in a variety of different configurations. Therefore, the following detailed description of the embodiments of the present application provided in the drawings is not intended to limit the scope of the claimed application, but merely represents selected embodiments of the present application.

[0021] Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without making any creative work shall fall within the scope of protection of this application.

[0022] In the description of this application, it should be noted that the terms "upper," "lower," "inner," "outer," "front end," "rear end," "both ends," "one end," "the other end," and the like, indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings and are intended solely to facilitate description and simplify the description of the present invention. They do not indicate or imply that the devices or components referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0023] In the description of this application, it should be noted that, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; mechanical connections or electrical connections; direct connections or indirect connections through an intermediate medium; and internal connections between two components. Those skilled in the art will understand the specific meanings of the above terms in this application based on the specific circumstances.

[0024] like Figures 1 to 4As shown, the present invention proposes a dual-head rock drilling rig for mining, including a rock drilling rig support assembly 1, a drill rod extension positioning assembly 3 is installed on the top of the rock drilling rig support assembly 1 through a mechanical arm assembly 2, and auxiliary positioning assemblies 4 are installed on both sides of the drill rod extension positioning assembly 3, the mechanical arm assembly 2 is installed on the top of the rock drilling rig support assembly 1, the mechanical arm assembly 2 includes a secondary mechanical arm 205 hinged on the top of the positioning frame 301, a third hydraulic rod 206 is hinged between the secondary mechanical arm 205 and the positioning frame 301, and the main mechanical arm 201 is hinged on the end of the secondary mechanical arm 205 away from the positioning frame 301, and the main mechanical arm 201 and the secondary mechanical arm 205. A second hydraulic rod 204 is hinged between the main mechanical arm 201, a mechanical arm base 202 is hinged at the bottom of the main mechanical arm 201, and two first hydraulic rods 203 are hinged between the mechanical arm base 202 and the main mechanical arm 201. The rock drilling vehicle support assembly 1 includes a rock drilling vehicle shell 101 fixedly installed at the bottom end of the main mechanical arm 201, a console 102 is fixedly installed on the top of the rock drilling vehicle shell 101, and four wheels 103 are provided at the bottom end of the rock drilling vehicle shell 101. The rock drilling vehicle support assembly 1 serves as the main body of the rock drilling vehicle. The staff operates the mine double-head rock drilling vehicle through the console 102, and because the console 102 is in a semi-sealed state, it can prevent excessive dust in the mine from entering the console 102 and endangering the health of the staff.

[0025] As an implementation method, Figure 1 and Figure 4 As shown, for deep and narrow areas, the equipment cannot completely pass through this area, and the staff controls the auxiliary robotic arm 205 and the drill rod extension positioning assembly 3 to move along the X-axis by operating the first hydraulic rod 203. Under the hydraulic drive of the hydraulic pump equipped on the first hydraulic rod 203, the main robotic arm 201 drives the drill rod extension positioning assembly 3 and the auxiliary positioning assembly 4 along the X-axis to drill toward the deep and narrow area. At the same time, under the hydraulic drive of the hydraulic pump equipped on the second hydraulic rod 204, the auxiliary robotic arm 205 is driven to deflect along the end of the main robotic arm 201, that is, to move up and down along the Y-axis to adjust the up and down position of the deep and narrow area. The positioning frame 301 is driven by the hydraulic drive of the hydraulic pump equipped on the second hydraulic rod 204 to adjust the position within a small range along the X-axis and the Y-axis to fit the complex terrain of the deep and narrow area of ​​the mine for drilling, thereby improving the efficiency and range of rock drilling and improving the practicality of the equipment.

[0026] As an implementation method, Figures 10 to 12As shown, in this embodiment, the drill rod extension positioning assembly 3 includes a positioning frame 301, a fixed clamping rod 311 is fixedly installed on one side of the positioning frame 301, an inner triangular clamping rod 312 is fixedly installed on the end of the fixed clamping rod 311 away from the positioning frame 301, and a slide rail frame 304 is fixedly installed on the upper and lower sides of the inner triangular clamping rod 312, and a shielding positioning plate 310 is fixedly installed on the side of the inner triangular clamping rod 312 facing the positioning frame 301, and a positioning box body 303 is slidably installed on the outer side of the slide rail frame 304, and two sets of pulleys 313 are fixedly installed on the side of the positioning box body 303 facing the inner triangular clamping rod 312. The pulley 313 is slidably installed on the side of the slide rail frame 304, and the positioning box body 303 is rotatably installed on the side of the pulley 313 The outer side of the first gear 314 is meshed with a rack 315, and the rack 315 is fixedly installed on the top of the slide rail frame 304. A first telescopic positioning belt 306 is fixedly installed between the positioning box 303 and the slide rail frame 304. A telescopic belt positioning frame 308 is fixedly installed on the outer side of the first telescopic positioning belt 306. A vertical positioning plate 302 is fixedly installed on the outer side of the positioning box 303. A drill rod clamping frame 307 is slidably installed on the outer side of the vertical positioning plate 302. A second telescopic positioning belt 309 is fixedly installed between the telescopic belt positioning frame 308 and the vertical positioning plate 302. The interior of the drill rod clamping frame 307 is provided with the first telescopic positioning belt 306. Usually, multiple drilling points need to be determined in the rock drilling area to improve the overall rock drilling efficiency. When drilling around the initial drilling position, the existing technology usually requires the drilling vehicle to adjust the processing direction as a whole. Due to the large overall mass of the drilling vehicle, it usually requires very skilled workers to adjust the drill bit position multiple times. The front and rear positions of the drilling vehicle are easier to adjust, while the left and right positions require frequent steering wheel adjustments, resulting in slow drilling position adjustment efficiency and low hole positioning accuracy. In this application, the first forward and reverse motor is fixedly installed on the positioning box 303. As the first forward and reverse motor drives the first gear 314 to rotate, the first gear 314 slides along the rack 315 by meshing with the rack 315. At the same time, the positioning box 303 slides synchronously along the slide rail frame 304. The characteristics of the pulleys between the two sets of pulleys 313 and the slide rail frame 304 result in The friction between the two is small, which makes it easy for the positioning box 303 to adjust its position along the slide frame 304, and when the positioning box 303 drives the vertical positioning plate 302 to adjust its position, the positioning box 303 is limited by the pulling distance between the first telescopic positioning belt 306 and the slide frame 304, thereby improving the stability of the drill bit in adjusting the left and right positions. At the same time, the hydraulic pushing system on the top of the drill rod clamping frame 307 drives the first telescopic positioning belt 306 to move up and down, thereby adjusting the stability of the drill bit in adjusting the up and down positions, and the first telescopic positioning belt 306 is limited by the pulling distance between the second telescopic positioning belt 309 and the telescopic belt positioning frame 308, thereby facilitating adjustment to different drilling positions and reducing the operational difficulty of drilling position adjustment.

[0027] Furthermore, a drill rod positioning tube 305 is slidably installed on the outer side of the first telescopic positioning belt 306, and the drill rod positioning tube 305 is fixedly installed on the outer side of the vertical positioning plate 302. During the process of the hydraulic pushing assembly driving the drill rod clamping frame 307 to drill downward along the vertical positioning plate 302, the first telescopic positioning belt 306 is always positioned by the drill rod positioning tube 305, thereby improving the stability of the first telescopic positioning belt 306 when drilling in the mine.

[0028] As an implementation method, Figures 5 to 9As shown, the auxiliary positioning assembly 4 includes two groups of inner triangular slide bars 406 installed on the left and right sides of the slide rail frame 304, a hydraulic push rod 401 is fixedly installed on one side of the inner triangular slide bar 406, a positioning telescopic block 402 is slidably installed inside the hydraulic push rod 401, an L-shaped positioning box 403 is rotatably installed on one side of the positioning telescopic block 402, an auxiliary forward and reverse motor 407 is fixedly installed on the top of the L-shaped positioning box 403, the auxiliary forward and reverse motor 407 passes through one end of the L-shaped positioning box 403 and is fixedly installed with a first turbine 409, a slide bar 410 is fixedly installed inside the L-shaped positioning box 403, a worm 411 is rotatably installed inside the L-shaped positioning box 403, the worm 411 is arranged in a meshing state with the first turbine 409, and the worm 411 is away from the L-shaped positioning box One side of the positioning box 403 is meshedly connected with a magnetic turbine threaded rod 408, and a hollow slider 404 is slidably installed inside the slide rod 410. The magnetic turbine threaded rod 408 is threadedly installed inside the hollow slider 404, and a split triangular positioning frame 405 is slidably installed inside the hollow slider 404 through the magnetic turbine threaded rod 408. When the first telescopic positioning belt 306 adjusts the drilling position along the slide rail frame 304 and before the first telescopic positioning belt 306 drills up and down along the vertical positioning plate 302, the two groups of hydraulic push rods 401 at both ends of the slide rail frame 304 are symmetrically arranged with respect to the vertical center line of the positioning box 303. Therefore, the force spacing of the two groups of split triangular positioning frames 405 on the mine is equal, which improves the first telescopic positioning The stability of the belt 306 during the movement, at the same time, during this process, the hydraulic push rod 401 first drives the positioning telescopic block 402 to move downward until the split triangular positioning frame 405 is compacted with the ground. Due to the complex internal environment of the mine, the split triangular positioning frame 405 is equipped with a pressure sensor, which can record the pressure applied to the ground by the two sets of split triangular positioning frames 405. In order to avoid the vibration or tilt of the drill bit caused by uneven force on both sides of the slide rail frame 304, the split triangular positioning frame 405 needs to fine-tune its position. At this time, the auxiliary forward and reverse motor 407 drives the first turbine 409 to rotate, and the first turbine 409 is engaged with the worm 411, and the worm 411 rotates along the L-shaped positioning box 403. The hollow slider 404 is equipped with a magnetic vortex. The magnetic component adapted to the wheel threaded rod 408, if the magnetic turbine threaded rod 408 is fixed and cannot rotate by the magnetic component, as the worm 411 rotates, the gear teeth on its surface will generate friction with the gear teeth engaged with the magnetic turbine threaded rod 408, that is, when the rotational freedom of the magnetic turbine threaded rod 408 is locked, the rotational power of the magnetic turbine threaded rod 408 is forcibly converted into the linear motion of the magnetic turbine threaded rod 408 through the engagement of the tooth surface, which is similar to the existing situation where the nut is stuck when tightening a screw, and the rotation of the screw will drive the nut to move back and forth. At this time, the hollow slider 404 drives the split triangular positioning frame 405 to slide left and right along the slide rod 410 to fine-tune its position, thereby adapting to the positioning requirements of different positioning positions.If the magnetic turbine threaded rod 408 is not attracted by the magnetic attraction of the magnetic assembly, the worm 411 rotates, and the magnetic turbine threaded rod 408 is engaged with the worm 411 and rotates together. Since the hollow slider 404 is limited by the slide bar 410 and can only slide, the magnetic turbine threaded rod 408 rotates along the hollow slider 404, and a spiral thrust is formed between the split triangular positioning frame 405 and the split triangular positioning frame 405. Since the split triangular positioning frame 405 is clamped by the slideway of the hollow slider 404 and can only slide up and down, the split triangular positioning frame 405 forms different pressures on the ground under the thread thrust of the magnetic turbine threaded rod 408, thereby better improving the stability of the split triangular positioning frame 405 clamping on the ground, and is suitable for different mine surfaces.

[0029] Among them, the outer side of the L-shaped positioning box 403 is fixedly installed with a steering gear 412, and the outer side of the positioning telescopic block 402 is rotatably installed with a gear assembly, and the gear assembly is arranged in a meshing state with the steering gear 412. At the same time, the outer side of the steering gear 412 is meshed with an auxiliary gear and a second forward and reverse motor. The second forward and reverse motor is fixedly installed on the inner wall of the positioning telescopic block 402, and the second forward and reverse motor drives the auxiliary gear to rotate, and the auxiliary gear drives the steering gear 412 to rotate, and the steering gear 412 drives the L-shaped positioning box 403 and the split triangular positioning frame 405 to adjust the angle, avoiding the subsidence areas of some mines, thereby improving the stability and safety of drilling.

[0030] As an implementation method, Figure 1 and Figure 3 As shown, a vehicle body positioning assembly 5 is installed on the outside of the rock drilling vehicle support assembly 1. The vehicle body positioning assembly 5 includes two groups of crossbeams 501 fixedly installed on the front and rear sides of the rock drilling vehicle shell 101. Two groups of limit clamps 503 are fixedly installed on both sides of the crossbeam 501. Steel beam positioning feet 504 are hinged on both sides of the crossbeam 501. A fourth hydraulic telescopic rod 502 is hinged between the steel beam positioning feet 504 and the crossbeam 501. An adaptive pressure plate 505 is provided at the bottom of the steel beam positioning foot 504. The inner triangular slide bar 406 is positioned by the split triangular positioning frame 405. The overall movement of the equipment is controlled by the wheels 103. It is easy to vibrate or move under the influence of external forces, which interferes with the drilling accuracy. Therefore, the fourth hydraulic telescopic rod 502 drives the steel beam positioning foot 504 to move toward the ground through hydraulic drive until the steel beam positioning foot 504 and the adaptive pressure plate 505 compact the ground, thereby improving the stability of the overall equipment during drilling and reducing the interference of the overall equipment on drilling.

[0031] If the equipment is in the driving state, the fourth hydraulic telescopic rod 502 will retract the steel beam positioning foot 504 under the limit of the limit clamping plate 503 to avoid interference with the driving of the equipment.

[0032] The above specific embodiments are merely several optional embodiments of the present invention. Based on the technical solutions of the present invention and the relevant inspirations of the above embodiments, those skilled in the art may make various alternative improvements and combinations to the above specific embodiments.

Claims

1. A mining double-head rock drilling rig, comprising a rock drilling rig support assembly (1), characterized in that: A drill rod extension positioning assembly (3) is installed on the top of the rock drilling vehicle support assembly (1) via a mechanical arm assembly (2), and auxiliary positioning assemblies (4) are installed on both sides of the drill rod extension positioning assembly (3); The drill rod extension positioning assembly (3) comprises a positioning frame (301), a fixed clamping rod (311) is fixedly mounted on one side of the positioning frame (301), an inner triangular clamping rod (312) is fixedly mounted on one end of the fixed clamping rod (311) away from the positioning frame (301), and slide rail frames (304) are fixedly mounted on both the upper and lower sides of the inner triangular clamping rod (312); The auxiliary positioning assembly (4) includes two sets of inner triangular slide bars (406) installed on the left and right sides of the slide rail frame (304), a hydraulic push rod (401) is fixedly installed on one side of the inner triangular slide bar (406), a positioning telescopic block (402) is slidably installed inside the hydraulic push rod (401), an L-shaped positioning box (403) is rotatably installed on one side of the positioning telescopic block (402), and an auxiliary forward and reverse motor (407) is fixedly installed on the top of the L-shaped positioning box (403). The auxiliary forward and reverse motor (407) passes through one end of the L-shaped positioning box (403) and is fixedly installed with a first turbine (409); a sliding rod (410) is fixedly installed inside the L-shaped positioning box (403); a worm (411) is rotatably installed inside the L-shaped positioning box (403); the worm (411) is arranged in a meshing state with the first turbine (409); and a side of the worm (411) away from the L-shaped positioning box (403) is meshedly connected with a magnetic turbine threaded rod (408).

2. A mining double-head rock drilling rig according to claim 1, characterized in that: A hollow slider (404) is slidably mounted inside the sliding rod (410), the magnetic turbine threaded rod (408) is threadedly mounted inside the hollow slider (404), a split triangular positioning frame (405) is slidably mounted inside the hollow slider (404) via the magnetic turbine threaded rod (408), a steering gear (412) is fixedly mounted on the outside of the L-shaped positioning box (403), a gear assembly is rotatably mounted on the outside of the positioning telescopic block (402), and the gear assembly is arranged in a meshing state with the steering gear (412).

3. The mining double-head rock drilling rig according to claim 1, characterized in that: The mechanical arm assembly (2) is mounted on the top of the rock drilling vehicle support assembly (1), and comprises an auxiliary mechanical arm (205) hinged on the top of a positioning frame (301), a third hydraulic rod (206) is hinged between the auxiliary mechanical arm (205) and the positioning frame (301), an end of the auxiliary mechanical arm (205) away from the positioning frame (301) is hinged to a main mechanical arm (201), and a second hydraulic rod (204) is hinged between the main mechanical arm (201) and the auxiliary mechanical arm (205).

4. A mining double-head rock drilling rig according to claim 3, characterized in that: The bottom of the main mechanical arm (201) is hingedly connected to a mechanical arm base (202), and two first hydraulic rods (203) are hingedly connected between the mechanical arm base (202) and the main mechanical arm (201).

5. The mining double-head rock drilling rig according to claim 4, characterized in that: The rock drilling vehicle support assembly (1) comprises a rock drilling vehicle housing (101) fixedly mounted on the bottom end of a main mechanical arm (201), a console (102) fixedly mounted on the top of the rock drilling vehicle housing (101), and four wheels (103) provided at the bottom end of the rock drilling vehicle housing (101).

6. The mining double-head rock drilling rig according to claim 1, characterized in that: A shielding positioning plate (310) is fixedly mounted on one side of the inner triangular clamping rod (312) facing the positioning frame (301), and a positioning box (303) is slidably mounted on the outer side of the slide rail frame (304).

7. The mining double-head rock drilling rig according to claim 6, characterized in that: Two sets of pulleys (313) are fixedly mounted on one side of the positioning box (303) facing the inner triangular clamping rod (312), and the pulleys (313) are slidably mounted on the side of the slide rail frame (304).

8. The mining double-head rock drilling rig according to claim 7, characterized in that: A first gear (314) is rotatably mounted on one side of the positioning box (303) toward the pulley (313); a rack (315) is meshedly connected to the outer side of the first gear (314); the rack (315) is fixedly mounted on the top of the slide rail frame (304); a first telescopic positioning belt (306) is fixedly mounted between the positioning box (303) and the slide rail frame (304); and a telescopic belt positioning frame (308) is fixedly mounted on the outer side of the first telescopic positioning belt (306).

9. The mining double-head rock drilling rig according to claim 8, characterized in that: A vertical positioning plate (302) is fixedly installed on the outer side of the positioning box (303), a drill rod clamping frame (307) is slidably installed on the outer side of the vertical positioning plate (302), a second telescopic positioning belt (309) is fixedly installed between the telescopic belt positioning frame (308) and the vertical positioning plate (302), a first telescopic positioning belt (306) is provided inside the drill rod clamping frame (307), a drill rod positioning tube (305) is slidably installed on the outer side of the first telescopic positioning belt (306), and the drill rod positioning tube (305) is fixedly installed on the outer side of the vertical positioning plate (302).

10. The mining double-head rock drilling rig according to claim 1, characterized in that: A vehicle body positioning assembly (5) is installed on the outer side of the rock drilling vehicle support assembly (1), and the vehicle body positioning assembly (5) comprises two groups of crossbeam frames (501) fixedly installed on the front and rear sides of the rock drilling vehicle shell (101), two groups of limit clamping plates (503) are fixedly installed on both sides of the crossbeam frame (501), and steel beam positioning feet (504) are hinged on both sides of the crossbeam frame (501), and a fourth hydraulic telescopic rod (502) is hinged between the steel beam positioning feet (504) and the crossbeam frame (501), and an adaptive pressure plate (505) is provided at the bottom of the steel beam positioning feet (504).

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