Anchor rod drill carriage for coal mine

Abstract

The utility model relates to the technical field of tunnel engineering, in particular to an anchor rod drill carriage for a coal mine, which comprises a chassis, a frame assembly, a working arm, a rod adding mechanism and an anchor rod unit, the frame assembly is fixed on the chassis, the working arm is connected onto the frame assembly, the rod adding mechanism is connected onto the working arm, and the anchor rod unit is connected onto the working arm. The anchor rod unit is connected to the rod adding mechanism and used for drilling anchor rod holes, blowing cartridges and installing anchor rods. The pneumatic rock drill solves the technical problem that a pneumatic rock drill in the prior art is low in automatic operation and construction degree, and has the integrated intelligent functions of automatic station switching, automatic drilling, resin injection, automatic anchor rod installation and the like.

Description

Technical Field

[0001] This utility model relates to the field of tunnel engineering technology, specifically to a rock bolt drilling rig for coal mines. Background Technology

[0002] In tunnel construction, anchor bolts are generally required to reinforce the surrounding rock after blasting, and anchor bolt support is a crucial step in the drill-and-blast method. However, in coal mine roadway construction, the spatial complexity is much higher than that of traffic tunnels. The disturbance caused by mining blasting and the resulting voids lead to changes in the stress on the surrounding rock, making anchor bolt support even more critical. Currently, in the field of coal mine roadway anchor bolt support construction, pneumatic rock drills are still widely used for drilling. After drilling, steel scaffolds are used to assist in manual processes such as hanging mesh, installing resin rolls, and installing anchor bolts. This method suffers from drawbacks such as high labor intensity, low work efficiency, and poor safety. Utility Model Content

[0003] The purpose of this utility model is to provide a rock bolt drilling rig for coal mines, so as to solve the technical problem of low degree of automation in existing pneumatic rock drills. The specific technical solution is as follows:

[0004] This utility model provides a coal mine anchor drilling rig, including a chassis, a frame assembly, a working arm, a rod extension mechanism, and an anchor unit. The frame assembly is fixed to the chassis, the working arm is connected to the frame assembly, the rod extension mechanism is connected to the working arm, and the anchor unit is connected to the rod extension mechanism. The anchor unit is used for drilling anchor holes, blowing explosive cartridges, and installing anchors.

[0005] A further improvement of this utility model of a coal mine anchor drilling rig is that the anchor drilling rig also includes a driver's cab, which is fixed to the front of the frame assembly.

[0006] A further improvement of this utility model of a coal mine anchor drilling rig is that it also includes an electrical system, which includes a main unit, a display and a lidar scanner. The main unit and the display are fixed in the cab, and the lidar scanner is fixed at the rear of the frame assembly.

[0007] A further improvement of this utility model of a coal mine anchor drilling rig is that the rod-adding mechanism is connected to the working arm via a pin, and a first hydraulic cylinder is also connected between the rod-adding mechanism and the working arm, which drives the rod-adding mechanism to rotate around the working arm.

[0008] A further improvement of this utility model of a coal mine anchor bolt drilling rig is that the bolt-adding mechanism includes a robotic arm assembly, a C-shaped beam, an anchor bolt magazine, a magazine motor, and a double-headed hydraulic cylinder. The C-shaped beam is connected to the working arm, the anchor bolt magazine is rotatably connected to the C-shaped beam, the magazine motor is driven and connected to the anchor bolt magazine, the robotic arm assembly is connected to the bolt-adding mechanism, and the robotic arm assembly is used to grab the anchor bolt from the anchor bolt magazine to the bolt-adding mechanism. The double-headed hydraulic cylinder is connected between the C-shaped beam and the anchor bolt unit, and the double-headed hydraulic cylinder is used for work position switching.

[0009] A further improvement of this utility model of a coal mine anchor drilling rig is that the anchor unit includes a propulsion beam, a resin mechanism, a drilling assembly, and an anchor installation assembly. The double-headed hydraulic cylinder is driven and connected to the propulsion beam, and the resin mechanism, the drilling assembly, and the anchor installation assembly are respectively connected to the propulsion beam.

[0010] A further improvement of this utility model of a coal mine anchor bolt drilling rig is that the drilling assembly includes a manual drill bit clamp, a hydraulic drill bit clamp, a drilling motor, and a drill rod. The drilling motor is installed at the end of the push beam and is driven by the drill rod. The manual drill bit clamp and the hydraulic drill bit clamp are installed at the front end of the push beam. During drilling, the manual drill bit clamp supports the drill rod; when the drill rod needs to be lengthened, the hydraulic drill bit clamps the drill rod.

[0011] A further improvement of this utility model of a coal mine anchor drilling rig is that the anchor installation assembly includes an anchor motor and an anchor push rod. The anchor motor is installed at the end of the push beam, and the anchor motor is driven by the anchor push rod.

[0012] The application of the technical solution of this utility model has the following beneficial effects:

[0013] This utility model relates to a coal mine anchor bolt drilling rig. The rig is moved as a whole via chassis control, and the working arm, bolt adding mechanism, and anchor bolt unit are controlled by hydraulic and electrical systems to perform operations such as drilling anchor bolt holes, blowing resin cartridges, and installing anchor bolts. It allows for switching between drilling, resin injection, and anchor bolt positions, solving the technical problem of low automation in existing pneumatic rock drills. The anchor bolt magazine of this utility model can store multiple anchor bolts at once, and the magazine enables automatic bolt adding. Precise equipment positioning is achieved through laser radar, with a single positioning position sufficient for a 50m working distance. It integrates intelligent functions such as automatic position switching, automatic drilling, resin injection, and automatic anchor bolt installation.

[0014] In addition to the objectives, features, and advantages described above, this utility model has other objectives, features, and advantages. The present utility model will now be described in further detail with reference to the figures. Attached Figure Description

[0015] The accompanying drawings, which form part of this application, are used to provide a further understanding of the present invention. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an undue limitation of the present invention. In the drawings:

[0016] Figure 1 This is a schematic diagram of the overall structure of the coal mine anchor drilling rig of this utility model;

[0017] Figure 2 This is a top perspective view of the anchor bolt unit and the bolt reinforcement mechanism of the anchor bolt drilling rig for coal mines according to this utility model;

[0018] Figure 3 This is a bottom perspective view of the anchor bolt unit and the bolt reinforcement mechanism of the anchor bolt drilling rig for coal mines according to this utility model;

[0019] Figure 4 This is a top view of the anchor bolt unit and the bolt reinforcement mechanism of the anchor bolt drilling rig for coal mines of this utility model;

[0020] Figure 5 This is a bottom view of the anchor bolt unit and the rod-adding mechanism of the anchor bolt drilling rig for coal mines according to this utility model.

[0021] The components include: 1. Chassis; 2. Frame assembly; 3. Anchor bolt unit; 301. Push beam; 302. Anchor bolt push rod; 303. Anchor bolt motor; 304. Drill rig motor; 305. Detection target; 306. Drill rod; 307. Resin mechanism; 308. Manual drill bit clamp; 309. Hydraulic drill bit clamp; 310. Guide seat; 311. Connecting shaft; 312. Rotating shaft; 4. Rod extension mechanism; 401. Front manipulator; 402. Anchor bolt; 403. C-beam; 404. Anchor bolt magazine; 405. Rod magazine motor; 406. Rear manipulator; 407. Proximity switch; 408. Synchronizing cylinder; 409. Double-headed cylinder; 5. Working arm; 6. Cab; 7. Hydraulic system; 8. Electrical system; 9. Water and air system. Detailed Implementation

[0022] The embodiments of this utility model will be described in detail below with reference to the accompanying drawings.

[0023] See Figures 1-5 As shown, a coal mine anchor bolt drilling rig includes a chassis 1, a frame assembly 2, a working arm 5, a hydraulic system 7, an electrical system 8, a bolt extension mechanism 4, and an anchor bolt unit 3. The frame assembly 2 is fixed to the chassis 1. The hydraulic system 7 and the electrical system 8 are fixed to the frame assembly 2. The working arm 5 is connected to the frame assembly 2. The bolt extension mechanism 4 is connected to the working arm 5. The anchor bolt unit 3 is connected to the bolt extension mechanism 4. The anchor bolt unit 3 is used for drilling anchor bolt holes, blowing explosive cartridges, and installing anchor bolts 402.

[0024] Specifically, this utility model can control the working arm 5 to complete the construction function of two-ring anchor bolts 402 without moving the equipment. The operation mode can be remote control and / or local emergency operation mode for the entire vehicle, with automatic and manual mode switching functions. The remote control technology can adopt existing common remote control technology. The chassis 1 is a tracked chassis 1 for walking. The anchor bolt drilling rig also includes a water-air system 9, which has an external water pipe to cool and remove slag from the anchor bolt unit 3, and an air pipe to assist the resin mechanism 307 in blowing the injection cartridge. The hydraulic system 7 mainly includes a motor pump set, hydraulic oil tank, hydraulic pipelines, hydraulic cylinders, control valve group, etc. The electrical system 8 mainly includes an electrical control box, remote control system, early warning system, lighting system, etc. The electrical control program of the electrical system 8 is installed in the main unit. The electrical system 8 is connected to the hydraulic system 7 to realize the control of the hydraulic system 7. The hydraulic system 7 is connected to the cylinders of each component to control the movement of the entire vehicle. Further, as Figure 2 As shown, a detection target 305 is set on the anchor bolt unit 3, an encoder is set at the joint of the working arm 5, and a position sensor is set inside the hydraulic cylinder. With electrical control software, intelligent functions such as automatic boom movement, automatic drilling, automatic work station switching, and automatic anchor bolt 402 installation are achieved. This utility model features a vehicle-mounted laser radar scanner for overall machine positioning. Within a 35m range between the vehicle body and the fixed target installed on the tunnel wall, under unobstructed and strong reflective interference conditions, the positioning accuracy reaches within 3cm. The positioning process is as follows: Clicking "Start Scan" on the system, the radar automatically scans the point cloud and displays the scanned 3D point cloud data in real time in the information box, obtaining the coordinates of the fixed target on the tunnel wall, and acquiring the position and attitude of the drilling rig in the tunnel, thus achieving overall drilling rig positioning.

[0025] Preferred, such as Figure 1 As shown, the anchor drilling rig also includes a cab 6, which is fixed to the front of the frame assembly 2. The cab 6 is an open cab 6 to facilitate real-time observation of the working situation. The open cab 6 is fixedly installed at the front end of the frame assembly 2, and the working arm 5 is located directly in front of the open cab 6.

[0026] Preferably, the electrical system 8 includes a main unit, a display, and a lidar scanner. The main unit and the display are fixed inside the cab 6, and the lidar scanner is fixed to the rear of the frame assembly 2. Specifically, the display is located in the center of the cab 6, the computer main unit is located in the bottom cabinet on the right side of the cab 6, the vehicle-mounted lidar scanner is located at the rear of the vehicle body, and the main unit carries an intelligent control system. This system supports intelligent functions such as whole-machine radar positioning, boom posture control, work mode switching, process data acquisition and display, work parameter setting, work log generation, chassis 1 attitude monitoring, and reversing image monitoring. The operator selects functions using a wired keyboard and mouse, observes the overall machine status in real time on the display, and sets and operates parameters for each functional module as needed to complete human-machine interactive control. This utility model features an anchor bolt hole diagram import function, enabling automatic anchor bolt hole positioning based on the diagram; it integrates intelligent functions such as automatic workstation switching, automatic drilling, resin injection, and automatic 402 anchor bolt installation; it can automatically record and store drilling logs and provides fault information prompts; equipment maintenance records are searchable, including maintenance content, maintenance cycle, and runtime. The machine has a trial calibration mode, where the operator pre-positions the working device by swinging one ring within the tunnel to determine the drilling location, and then the working device automatically operates according to the trial calibration position.

[0027] Preferably, the rod-adding mechanism 4 is connected to the working arm 5 by a pin, and a first hydraulic cylinder is also connected between the rod-adding mechanism 4 and the working arm 5. The first hydraulic cylinder drives the rod-adding mechanism 4 to rotate around the working arm 5, thereby adjusting the construction position of the rod-adding mechanism 4.

[0028] Preferred, such as Figures 2-5As shown, the rod-adding mechanism 4 includes a robotic arm assembly, a C-shaped beam 403, an anchor bolt magazine 404, a magazine motor 405, and a double-headed hydraulic cylinder 409. The C-shaped beam 403 is connected to the working arm 5. The anchor bolt magazine 404 is rotatably connected to the C-shaped beam 403. The magazine motor 405 drives the anchor bolt magazine 404. The robotic arm assembly is connected to the rod-adding mechanism 4 and is used to grab the anchor bolts 402 from the anchor bolt magazine 404 and attach them to the rod-adding mechanism 4. The double-headed hydraulic cylinder 409 is connected between the C-shaped beam 403 and the anchor bolt unit 3 (specifically, the push beam 301). The double-headed hydraulic cylinder 409 is used for work position switching. Specifically, the outer side of the double-headed hydraulic cylinder 409 is fixed to the side of the C-shaped beam 403. The anchor bolt magazine 404 passes through the interior of the C-shaped beam 403 and is rotated by the magazine motor 405. The C-shaped beam 403 of the linkage mechanism 4 is connected to the anchor bolt unit 3 via a pin and is driven by a double-headed hydraulic cylinder 409 to switch between three positions. The double-headed hydraulic cylinder 409 is equipped with a position detection component to detect whether it has reached one of the three positions. This component can be a combination of a proximity switch 407 and a synchronous hydraulic cylinder 408, or a stroke sensor. The robotic arm assembly includes a front robotic arm 401 and a rear robotic arm 406 spaced apart.

[0029] Preferably, the anchor bolt unit 3 includes a propulsion beam 301, a resin mechanism 307, a drilling assembly, and an anchor bolt installation assembly. The double-headed hydraulic cylinder 409 is driven and connected to the propulsion beam 301, and the resin mechanism 307, the drilling assembly, and the anchor bolt installation assembly are respectively connected to the propulsion beam 301. Specifically, the anchor unit 3 also includes a transmission assembly, which includes a connecting shaft 311, a rotating shaft 312, a first main beam fixing seat, a second main beam fixing seat, and an intermediate fixing seat. The lower end of the C-shaped beam 403 is fixed to the connecting shaft 311. The connecting shaft 311 and the rotating shaft 312 pass through the first main beam fixing seat, the second main beam fixing seat, and the intermediate fixing seat. The rotating shaft 312 is parallel to the connecting shaft 311. The push beam 301 is fixed to the first main beam fixing seat and the second main beam fixing seat. The double-headed hydraulic cylinder 409 is connected to the intermediate fixing seat. The double-headed hydraulic cylinder 409 is used to drive the intermediate fixing seat to rotate around the connecting shaft 311. The intermediate fixing seat drives the first main beam fixing seat and the second main beam fixing seat to rotate around the connecting shaft 311 through the rotating shaft 312. The first main beam fixing seat and the second main beam fixing seat drive the push beam 301 to rotate around the connecting shaft 311 to the first station, the second station, and the third station, thereby realizing the automatic switching of the three stations. The double-headed hydraulic cylinder 409 on the side of the C-beam 403 can drive the propulsion beam 301 to rotate around the axis of the connecting shaft 311. The side of the C-beam 403 away from the working arm 5 is fixed to the connecting shaft 311 by a pin. Through the cooperation of this transmission component, it is convenient for the double-headed hydraulic cylinder 409 to switch between various work positions, thereby improving the automation level of the anchor bolt mechanism.

[0030] Preferably, the drilling assembly includes a manual drill chuck (308), a hydraulic drill chuck (309), a drilling motor 304, and a drill rod 306. The drilling motor 304 is mounted at the end of the feed beam 301 and is driven by the drill rod 306. When drilling, the manual drill chuck (308) is supported by the drill rod (306) when the drill rod needs to be lengthened; when the drill rod needs to be lengthened, the hydraulic drill chuck (309) clamps the drill rod 306. The axis of the drill rod 306 is parallel to the axis of the connecting shaft 311. The drilling assembly also includes a drilling mounting base mounted on the drilling motor 304, which can drive the drill rod 306 to rotate in both directions to achieve the drilling function. In this embodiment, the drill bit clamp can be either a hydraulic drill bit clamp 309 or a manual drill bit clamp 308. The difference is that the hydraulic drill bit clamp 309 can achieve the rod connection function.

[0031] In this embodiment, the material used for blowing the resin cartridge is a resin cartridge. The resin mechanism 307 includes a resin adding tube, a slide rail, a slider, a resin pushing cylinder, and a guide seat 310. The axis of the resin adding tube is parallel to the axis of the connecting shaft 311. The slider is slidably mounted on the slide rail. The guide seat 310 is fixed to the front of the slide rail. The middle part of the resin adding tube is fixed to the slider, and the front end passes through the guide seat 310. The resin pushing cylinder is fixed to the slider. The resin pushing cylinder drives the slider to slide along the slide rail, and at the same time drives the resin adding tube to perform axial extension and retraction within the guide seat 310. In this embodiment, during the driving process of the resin pushing cylinder, the resin pushing function is realized, which can inject the resin into the borehole for subsequent reinforcement of the anchor bolt 402. The rear end of the resin pushing cylinder is fixed to the push beam 301.

[0032] Preferably, the anchor bolt installation assembly includes an anchor bolt motor 303 and an anchor bolt pusher 302. The anchor bolt motor 303 is mounted at the end of the push beam 301 and is driven by the anchor bolt pusher 302. The axis of the anchor bolt pusher 302 is parallel to the axis of the connecting shaft 311. The axes of the drill rod 306 of the drilling assembly, the resin addition tube of the resin mechanism 307, and the anchor bolt pusher 302 of the anchor bolt assembly are all arranged parallel to and at equal intervals with the axis of the rotating shaft 312, thereby facilitating subsequent construction operations by aligning with the drill hole after drilling is completed. The anchor bolt installation assembly also includes an anchor bolt mounting base, on which the anchor bolt motor 303 is fixed. The robotic arm is used to grasp the anchor bolt 402, and the anchor bolt motor 303 is used to push the anchor bolt 402. Specifically, the robotic arm assembly can clamp the anchor rod 402 to be pushed provided by the anchor rod magazine 404, and the anchor rod motor 303 can drive the anchor rod 402 to rotate forward and backward and move axially, pushing the anchor rod 402 into the anchor rod hole, thereby realizing the pushing function of the anchor rod 402. The robotic arm assembly is fixed on the second main beam fixing seat. The robotic arm assembly is equipped with a return spring. After the anchor rod 402 is pushed into place, both the anchor rod installation assembly and the robotic arm assembly return to their original positions, ready to push the next anchor rod 402; the robotic arm assembly is also equipped with a gripping spring to realize the function of gripping the anchor rod 402.

[0033] This utility model has two modes: manual mode and automatic mode.

[0034] The automatic mode is as follows: The anchor bolt design drawing is imported into the on-board computer, the construction path is planned, and after pressing the automatic button, the whole machine starts to automatically adjust the posture of the working arm 5 and the anchor bolt unit 3 to find the drilling position, so that the middle support contacts the rock wall; it automatically switches to the resin blowing station, and after the manual loading of the cartridge, the resin mechanism 307 is manually operated to push into the hole, and then the "resin blowing" is manually operated to blow the cartridge into the hole, and then the resin mechanism 307 is operated to retract; the push beam 301 is automatically retracted, and it switches to the drilling station, automatically rotates the rod magazine, grabs the anchor bolt 402, automatically switches to the anchor bolt installation station, automatically pushes, tightens, and retracts to complete the installation of the anchor bolt 402, realizing the automatic integrated operation of anchor bolt installation. The key process data of drilling, cartridge blowing, and anchor bolt installation are displayed in real time on the computer interface.

[0035] The manual mode allows manual operation of the remote control buttons to move the boom, switch work positions, and perform functions such as drilling, blowing explosive cartridges, and installing anchor bolts 402.

[0036] This utility model relates to a coal mine anchor drilling rig. The chassis 1 controls the overall movement of the rig, while the hydraulic system 7 and electrical system 8 control the working arm 5, the anchor bolt extension mechanism 4, and the anchor bolt unit 3 to perform operations such as drilling anchor bolt holes, blowing resin cartridges, and installing anchor bolts 402. It allows for switching between drilling, resin injection, and anchor bolt positions, solving the technical problem of low automation in existing pneumatic rock drills. The anchor bolt magazine 404 can store multiple anchor bolts 402 at once and enables automatic anchor bolt extension. LiDAR positioning allows for precise equipment location, with a single positioning sufficient for a 50m working distance. It integrates intelligent functions such as automatic position switching, automatic drilling, resin injection, and automatic anchor bolt 402 installation.

[0037] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A rock bolt drilling rig for coal mines, characterized in that, The system includes a chassis (1), a frame assembly (2), a working arm (5), a rod extension mechanism (4), and an anchor bolt unit (3). The frame assembly (2) is fixed to the chassis (1), the working arm (5) is connected to the frame assembly (2), the rod extension mechanism (4) is connected to the working arm (5), and the anchor bolt unit (3) is connected to the rod extension mechanism (4). The anchor bolt unit (3) is used for drilling anchor bolt holes, blowing explosive cartridges, and installing anchor bolts (402).

2. The coal mine anchor drilling rig according to claim 1, characterized in that, It also includes a cab (6), which is fixed to the front of the frame assembly (2).

3. The anchor bolt drilling rig for coal mines according to claim 2, characterized in that, It also includes an electrical system (8), which includes a host, a display and a lidar scanner, the host and the display being fixed inside the cab (6) and the lidar scanner being fixed to the rear of the frame assembly (2).

4. The anchor bolt drilling rig for coal mines according to claim 1, characterized in that, The rod-adding mechanism (4) is connected to the working arm (5) by a pin. A first oil cylinder is also connected between the rod-adding mechanism (4) and the working arm (5). The first oil cylinder drives the rod-adding mechanism (4) to rotate around the working arm (5).

5. The anchor bolt drilling rig for coal mines according to claim 1, characterized in that, The rod-adding mechanism (4) includes a robotic arm assembly, a C-beam (403), an anchor bolt magazine (404), a rod magazine motor (405), and a double-headed hydraulic cylinder (409). The C-beam (403) is connected to the working arm (5). The anchor bolt magazine (404) is rotatably connected to the C-beam (403). The rod magazine motor (405) is driven and connected to the anchor bolt magazine (404). The robotic arm assembly is connected to the rod-adding mechanism (4). The robotic arm assembly is used to grab the anchor bolts (402) of the anchor bolt magazine (404) to the rod-adding mechanism (4). The double-headed hydraulic cylinder (409) is connected between the C-beam (403) and the anchor bolt unit (3). The double-headed hydraulic cylinder (409) is used for work position switching.

6. The coal mine anchor drilling rig according to claim 5, characterized in that, The anchor bolt unit (3) includes a propulsion beam (301), a resin mechanism (307), a drilling assembly, and an anchor bolt installation assembly. The double-headed hydraulic cylinder (409) is driven and connected to the propulsion beam (301). The resin mechanism (307), the drilling assembly, and the anchor bolt installation assembly are respectively connected to the propulsion beam (301).

7. The coal mine anchor drilling rig according to claim 6, characterized in that, The drilling assembly includes a manual drill chuck (308), a hydraulic drill chuck (309), a drilling motor (304), and a drill rod (306). The drilling motor (304) is installed at the end of the push beam (301) and is driven by the drill rod (306). The manual drill chuck (308) and the hydraulic drill chuck (309) are installed at the front end of the push beam (301).

8. The coal mine anchor drilling rig according to claim 6, characterized in that, The anchor bolt installation assembly includes an anchor bolt motor (303) and an anchor bolt pusher (302). The anchor bolt motor (303) is installed at the end of the push beam (301) and is driven by the anchor bolt pusher (302).

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