Compact two-arm side support roof bolter

Abstract

The present application belongs to the field of anchor rod supporting equipment, and particularly relates to a compact two-arm side help anchor rod drill carriage. A large lifting platform and a lifting mechanism are used to realize two-stage lifting of the side help drill carriage, a gear and rack rotary reducer is used to realize large-angle swinging of the side help drill carriage by 90 degrees, a telescopic slide rail type swinging mechanism is used to realize spacing adjustment of the two drill carriages and forward and backward swinging angle adjustment and left and right swinging angle adjustment, a scissor mechanism lifting type standing platform is used to realize lifting of the operator, and a long slot type hopper is used to realize storage of materials. The machine width is only 1.4 m, and the compact two-arm side help anchor rod drill carriage can be suitable for rapid anchoring of side help anchor rods in various roadways, has the outstanding advantages of being mobile, flexible and having a large anchoring range, and can realize rapid adjustment of the side help drill rig from the left side help anchoring position to the right side help anchoring position through the gear and rack rotary reducer.

Description

Technical Field

[0001] This invention belongs to the field of anchor bolt support equipment, specifically relating to a compact two-arm side anchor bolt drilling rig. Background Technology

[0002] Currently, the main support method used in tunnel excavation is bolt support. Traditional bolt support is carried out manually using a single drilling rig. Multiple people are needed to operate a single drilling rig to complete the bolting process, especially for sidewall bolting, which is the most difficult. This requires manual climbing and using ladders for operation. Furthermore, the bolting reaction force during sidewall bolting cannot be controlled by ground support as in top bolting; instead, it must be counteracted by the reaction force provided by the operator's body. Therefore, sidewall bolting is time-consuming and labor-intensive. Additionally, in some tunnels with poor surrounding rock properties, there is a risk of sidewall deviation, posing certain safety hazards. In well-equipped mines, bolt drilling rigs are used for roadway anchoring operations. These can be further divided into multi-arm bolt drilling rigs and ordinary two-arm bolt drilling rigs. Multi-arm bolt drilling rigs can only use the outer top anchor drilling rig for sidewall anchoring, and their sidewall anchoring spacing is not adjustable, resulting in extremely poor adaptability. Ordinary two-arm bolt drilling rigs are mainly used for roadway top anchoring. When anchoring roadway sidewalls, the bolting boom of the two-arm bolt drilling rig needs to be adjusted for anchoring positioning, which presents significant problems such as anchoring positioning adjustment time lag and difficult positioning operations. Additionally, the operating platform is narrow, resulting in low actual anchoring efficiency. Objectively speaking, currently there is no highly compact bolt drilling rig in China specifically designed for rapid sidewall anchoring in coal mine roadways to achieve rapid mechanized anchoring of sidewall bolts. To solve this prominent problem, this patent develops a compact two-arm sidewall bolt drilling rig. Summary of the Invention

[0003] This invention aims to solve the problems of traditional roadway sidewall anchoring, which relies on manual labor, requires climbing ladders for anchoring operations, and involves high labor intensity.

[0004] This invention provides the following technical solution: a compact two-arm side anchor bolt drilling rig, including a walking chassis, an anchor bolt drilling rig lifting mechanism, a lifting personnel platform, an anchor bolt storage hopper, an automatic cable winding device, a lifting platform, a driver's cab, a hydraulic system, an electrical control system, and a side anchor protection drilling rig;

[0005] The automatic cable reeling device, cab, hydraulic system and electrical control system are located at the rear of the chassis, the lifting platform is installed at the front of the chassis, and the anchor drilling rig lifting mechanism, lifting personnel platform and anchor storage hopper are arranged on the lifting platform from the front to the rear of the chassis.

[0006] The anchor drilling rig lifting mechanism includes a lifting seat, a rotating seat, and a folding and unfolding unit. The fixed part of the lifting seat is connected to the lifting platform, the rotating seat is installed on the lifting component of the lifting seat, and the folding and unfolding unit is installed on the rotating seat.

[0007] The sidewall anchoring drilling rig includes a secondary propulsion unit, a drill box, and an electro-hydraulic control box. The secondary propulsion unit is connected to the folding and spreading components of the folding and spreading unit to adjust the spacing of the drilling rig. The secondary propulsion unit and the folding and spreading components are connected by a swing assembly to change the angle of the drilling rig. The drill box is installed on the final propulsion component of the secondary propulsion unit.

[0008] Furthermore, the lifting seat includes a lifting cylinder, an inner sleeve, and an outer sleeve; the inner sleeve and the outer sleeve are connected by a frame-type sliding structure, and the lifting cylinder is used to drive the outer sleeve to lift relative to the inner sleeve;

[0009] The rotary base is a gear and rack rotary reducer;

[0010] The folding unit includes a fixed slide rail, a right-side moving slide rail, and a left-side moving slide rail. The right-side and left-side moving slide rails are slidably mounted on both sides of the fixed slide rail and are each driven by a hydraulic cylinder.

[0011] The two sets of secondary propulsion units are respectively hinged to the drilling rig swing seats on the right and left moving slide rails and driven to swing by hydraulic cylinders;

[0012] The secondary propulsion unit includes a carriage assembly, a short feed cylinder, a frame assembly, and a long feed cylinder. The carriage assembly is a frame structure formed by connecting guide posts and support plates at both ends. The frame assembly supports the carriage assembly. The drill box is slidably assembled on the carriage assembly. The guide posts of the lower layer of the carriage assembly are engaged with the guide holes of the frame assembly, and the guide posts of the upper layer are engaged with the guide holes of the drill box. The long feed cylinder connects the frame assembly and the carriage assembly, and the short feed cylinder connects the carriage assembly and the drill box.

[0013] Furthermore, the lifting platform is a four-bar linkage lifting platform, including a support platform, a platform lifting cylinder, a front linkage mechanism, a platform ladder, a rear linkage mechanism, a first operating platform, and a hopper support frame;

[0014] The anchor drilling rig lifting mechanism, the first operating platform, the hopper support frame and the lifting personnel platform are arranged on the support platform. The anchor storage hopper is installed on the hopper support frame and extends outwards towards the rear of the vehicle.

[0015] The front linkage mechanism, the support platform, and the rear linkage mechanism form a four-bar linkage lifting mechanism. The platform lifting cylinder is used to drive the front linkage mechanism to lift the support platform. The platform ladder extends downward from the support platform.

[0016] Furthermore, the lifting platform includes a fixed base, a lifting cylinder, a scissor lift mechanism, a platform body, a tilting pedal, pedal guardrails, and a platform guardrail. The fixed base is used to fix the lifting cylinder and the scissor lift mechanism. The lifting cylinder is used to drive the scissor lift mechanism to achieve lifting and lowering. The platform body is connected to the scissor lift mechanism. Tilting pedals that can be folded back are arranged on both sides of the platform. Pedal guardrails are arranged around the tilting pedals and are detachable. The platform guardrails are located on the front side of the platform body.

[0017] Furthermore, the chassis includes a front stabilizer shoe mounting bracket, a front stabilizer shoe support leg, a front stabilizer shoe support cylinder, a main frame, a tracked walking mechanism, a tail frame, a rear stabilizer shoe frame, a rear link mounting base, a front link mounting base, and a rear stabilizer shoe support cylinder.

[0018] The main frame is the main structure of the chassis. The tail frame is connected to the main frame and is used to house the cab, hydraulic system, electronic control system, and automatic cable reel device. The tracked walking mechanism is installed at the bottom of the main frame. The front stabilizer shoe mounting bracket and the rear stabilizer shoe frame are connected to the main frame. The front stabilizer shoe mounting bracket is used to fix the front stabilizer shoe support leg and the front stabilizer shoe support cylinder. The front stabilizer shoe support leg adopts a crab claw lateral support leg structure, and the front stabilizer shoe support cylinder is used to support the front stabilizer shoe support leg. The rear stabilizer shoe frame adopts a rear-folding large support surface structure, and the rear stabilizer shoe support cylinder is used to provide support force for the rear stabilizer shoe frame. The rear link mounting bracket is used to fix the rear link mechanism. The front link mounting bracket is used to fix the front link mechanism.

[0019] Furthermore, the automatic cable reel device includes a cable reel, a cable reel frame, a cable laying mechanism, cable reel rollers, and an operating valve. The cable reel is driven by a built-in electric drive. The cable reel frame is a cable storage bin. The cylinder of the cable reel and the cable laying mechanism are located inside the cable reel frame. Several cable reel rollers are arranged around the cable inlet of the cable reel frame. The cable laying mechanism is located between the cable inlet and the cable reel rollers. The cable laying mechanism is a double-helix cable laying roller, the length of which is aligned with the width of the cable reel rollers. The operating valve is installed outside the cable reel frame and is used to control the cable reel.

[0020] Furthermore, the driver's cab includes a pump station cover, a ladder, a hatch, a driver's cab body, a seat, and a second control panel; the pump station cover is the supporting frame of the driver's cab, and also the protective cover for the pump station and electrical control box; the ladder is installed between the hatch and the ground; the seat and the second control panel are installed inside the driver's cab body.

[0021] Furthermore, the hatches are divided into rear hatches and side hatches. The rear hatches are close to the hydraulic system and the electronic control system, while the side hatches are located on the side of the vehicle.

[0022] Compared with the prior art, the advantages of the present invention are:

[0023] 1. The compact two-arm side anchor drilling rig innovatively adopts a method of synchronous rotation and synchronous spacing adjustment of the dual side anchoring drilling rig. It can quickly realize the rotation of the side drilling rig and the rapid and accurate adjustment of the side spacing. Compared with traditional anchoring, it has the outstanding advantages of fast response speed and accurate positioning, thereby further improving the efficiency of side anchoring.

[0024] 2. Compared to ordinary two-arm anchor bolting rigs, its personnel platform is four times larger, offering better operational comfort and enhanced safety. Furthermore, its scissor-lift structure ensures that the personnel platform does not obstruct the machine's passage height during movement, while also guaranteeing sufficient operating height for personnel during sidewall anchoring.

[0025] 3. The innovative parallel four-bar linkage mechanism with elliptical cylinder guide double-stage lifting has outstanding advantages over the boom swing lifting of ordinary two-arm anchor bolt drilling rigs, including high lifting efficiency, simple operation, stable lifting, and large lifting range. It is specially developed for the characteristics of sidewall anchoring and is unmatched by boom swing lifting in sidewall anchoring.

[0026] 4. This invention adopts a dual-track H-type chassis, a longitudinal pump station structure, a compact cab layout, and a small-volume track frame. The machine body is only 1.4m wide, making it highly maneuverable and effectively solving the problem of narrow roadway space during side anchoring.

[0027] 5. This invention innovatively develops and designs a low center of gravity and high stability chassis, and adopts a low guide wheel track frame. Due to the low center of gravity of the chassis, and the use of crab claw-type front support legs and stabilizing boot-type rear support legs, the whole machine has excellent lateral stability, which fully meets the lateral stability requirements of the side anchoring drilling rig for anchoring operations at high altitudes.

[0028] 6. This invention innovatively adopts an automatic cable winding device, which automatically winds up and unwinds cables through a motor-embedded cable winding drum and arranges cables using a cable laying mechanism, thereby realizing automatic cable following and greatly reducing the labor intensity of manual cable dragging. Attached Figure Description

[0029] Figure 1 This is a schematic diagram of the structure of the present invention;

[0030] Figure 2 This is a schematic diagram of the lifting mechanism of the anchoring drilling rig;

[0031] Figure 3 This is a structural schematic diagram of a four-bar linkage lifting platform;

[0032] Figure 4 Schematic diagram of the sidewall anchoring drilling rig Figure 1 ;

[0033] Figure 5Schematic diagram of the sidewall anchoring drilling rig Figure 2 ;

[0034] Figure 6 This is a structural diagram of the framework components;

[0035] Figure 7 This is a structural schematic diagram of the carriage assembly;

[0036] Figure 8 This is a structural diagram of a lifting-type standing platform;

[0037] Figure 9 Schematic diagram of the chassis structure Figure 1 ;

[0038] Figure 10 Schematic diagram of the chassis structure Figure 2 ;

[0039] Figure 11 This is a structural diagram of the driver's cab;

[0040] Figure 12 This is a schematic diagram of an automatic cable reel device.

[0041] Figure 13 This is a schematic diagram of the internal structure of an automatic cable reel device;

[0042] Figure 14 This is a schematic diagram of the structure of the anchor bolt storage hopper;

[0043] Figure 15 This is a diagram showing the initial state of the anchoring protection for a compact two-arm side-mounted anchor drilling rig.

[0044] Figure 16 Diagram showing the lifting state of a four-link lifting platform;

[0045] Figure 17 To improve the lifting status diagram of the mechanism;

[0046] Figure 18 Diagram showing the side-mounted drilling rig tilted to the left and in a horizontal position;

[0047] Figure 19 This is a schematic diagram showing the adjustment of the drilling spacing for the side anchoring drilling rig.

[0048] Figure 20 A diagram showing the lifting status of the platform for station personnel;

[0049] Figure 21 Diagram showing the drilling process of the drill pipe;

[0050] Figure 22 Diagram showing the drilling rig tilted to the right and in a horizontal position for side anchoring;

[0051] Figure 23A schematic diagram showing the repositioning of a compact two-arm side-mounted anchor bolt drilling rig;

[0052] In the diagram: 1-Anchor drilling rig lifting mechanism; 2-Four-link lifting platform; 3-Side anchor drilling rig; 4-Lifting personnel platform; 5-Traveling chassis; 6-Cockpit; 7-Hydraulic system; 8-Electrical control system; 9-Automatic cable reel device; 10-Anchor bolt storage hopper; 11-Lifting cylinder; 12-Inner sleeve of lifting mechanism; 13-Outer sleeve of lifting mechanism; 14-Drilling rig swing seat; 15-Right-side moving slide rail; 16-Fixed slide rail; 17-Gear teeth 18-Swivel reducer; 19-Left side sliding rail; 20-Support platform; 21-Platform lifting cylinder; 22-Front linkage mechanism; 23-Platform ladder; 24-Rear linkage mechanism; 25-First operating platform; 26-Hopper support frame; 27-Drill box; 28-Slide assembly; 29-Short feed cylinder; 30-Frame assembly; 31-Long feed cylinder; 32-Electro-hydraulic control box; 33-Fixed base; 34-Lifting cylinder; 35-Scissor lift mechanism Mechanism; 35-Standing platform main body; 36-Tilting step; 37-Step guardrail; 38-Platform guardrail; 39-Support roller; 40-Railway groove; 41-Front stabilizer shoe fixing bracket; 42-Front stabilizer shoe support leg; 43-Front stabilizer shoe support cylinder; 44-Crawler frame guide wheel; 45-Fire extinguisher mounting bracket; 46-Main frame; 47-Crawler chain; 48-Hydraulic motor drive wheel; 49-Lifting ring; 50-Tail frame; 51-Parallel four-bar linkage mechanism 52-Rear linkage mounting bracket; 53-Front linkage mounting bracket for parallel four-bar linkage mechanism; 54-Rear stabilizer shoe frame; 55-Rear stabilizer shoe support cylinder; 56-Pump station cover; 57-Cockpit side ladder; 58-Rear ladder; 59-Cockpit body; 60-Seat; 61-Second control panel; 62-Side door; 63-Cable reel; 64-Cable reel frame; 65-Cable laying mechanism; 66-Cable reel roller; 67-Operating valve. Detailed Implementation

[0053] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0054] like Figure 1As shown: A compact two-arm side anchor bolt drilling rig includes a chassis 5, an anchor bolt drilling rig lifting mechanism 1, a lifting manned platform 4, an anchor bolt storage hopper 10, an automatic cable reeling device 9, a lifting platform 2, a cab 6, a hydraulic system 7, an electrical control system 8, and a side anchor bolt drilling rig 3; the automatic cable reeling device 9, the cab 6, the hydraulic system 7, and the electrical control system 8 are arranged at the rear of the chassis 5, and the lifting platform 2 is installed at the front of the chassis 5. The anchor bolt drilling rig lifting mechanism 1, the lifting manned platform 4, and the anchor bolt storage hopper 10 are arranged sequentially on the lifting platform 2 from the front to the rear of the chassis 5.

[0055] The anchor bolt drilling rig lifting mechanism 1 includes a lifting seat, a rotating seat, and a folding and spreading unit. The fixed part of the lifting seat is connected to the lifting platform 2. The rotating seat is installed on the lifting component of the lifting seat, and the folding and spreading unit is installed on the rotating seat. The side anchoring drilling rig 3 includes a secondary propulsion unit, a drill box 26, and an electro-hydraulic control box 31. The drill box 26 is the main actuator for drilling anchor bolts or anchor cables, driving the drill rod to perform drilling operations. The electro-hydraulic control box 31 has a built-in high-reliability solenoid valve and adopts electro-hydraulic control technology, which can realize intelligent operation and remote control operation of the drilling rig. The folding and spreading components of the secondary propulsion unit and the folding and spreading unit are connected one by one to adjust the spacing of the drilling rig. The secondary propulsion unit and the folding and spreading components are connected through a swing assembly to change the angle of the drilling rig. The drill box 26 is installed on the final propulsion component of the secondary propulsion unit.

[0056] like Figure 2 As shown: The lifting seat includes a lifting cylinder 11, an inner sleeve 12, and an outer sleeve 13. The inner sleeve 12 and the outer sleeve 13 are connected by a frame-type sliding structure, which not only has good sliding smoothness but also has high rigidity, fully meeting the heavy-load working conditions of large anchor drill reaction force and long cantilever during drilling of the anchor support drilling rig. The lifting stroke reaches 1m, enhancing the adjustment range of the drilling rig's lifting height. The lifting cylinder 11 is used to drive the lifting of the outer sleeve 13 relative to the inner sleeve 12.

[0057] The rotating base is a rack and pinion rotary reducer 17; the folding unit includes a fixed slide rail 16, a right-side moving slide rail 15, and a left-side moving slide rail 18. The right-side moving slide rail 15 and the left-side moving slide rail 18 are slidably mounted on both sides of the fixed slide rail 16 and are each driven by a hydraulic cylinder. The rack and pinion rotary reducer 17 is a low-speed, high-torque rotary reducer, mainly used to achieve a large-angle swing of the fixed slide rail 16 relative to the outer sleeve 13 of the lifting mechanism from -90° to 90°, thereby ensuring that the side-side anchoring drilling rig can be quickly adjusted from the left-side anchoring position to the right-side anchoring position without turning around. By the telescopic movement of the right-side moving slide rail 15 and the left-side moving slide rail 18 relative to the fixed slide rail 16, the spacing between the two side-side anchoring drilling rigs can be adjusted, thereby meeting the design requirements for the side-side anchor support spacing of different mines and roadways.

[0058] Two sets of secondary propulsion units are hinged to the drill swing seats 14 on the right moving slide rail 15 and the left moving slide rail 18, respectively, and are driven to swing by hydraulic cylinders. Utilizing the force of the swing hydraulic cylinders, the drill's left and right swing angles can be adjusted from -5° to 5°, and the drill's front and back swing angles can also be adjusted from -5° to 5°, meeting the micro-adjustment needs of the anchoring drill for anchoring holes.

[0059] like Figure 4 , Figure 5 , Figure 6 , Figure 7 As shown: The secondary propulsion unit includes a slide assembly 27, a short feed cylinder 28, a frame assembly 29, and a long feed cylinder 30. The slide assembly 27 is a frame structure formed by connecting guide posts and support plates at both ends. The frame assembly 29 is used to support the slide assembly 27. The drill box 26 is slidably assembled on the slide assembly 27. The guide posts of the lower layer of the slide assembly 27 are engaged with the guide holes of the frame assembly 29, and the guide posts of the upper layer are engaged with the guide holes of the drill box 26. The long feed cylinder 30 is connected between the frame assembly 29 and the slide assembly 27, and the short feed cylinder 28 is connected between the slide assembly 27 and the drill box 26.

[0060] Specifically, the carriage assembly 27 adopts a four-cylinder high-precision guide frame structure, mainly used for drilling and lifting of the drill box 26, and has the advantages of high guiding accuracy and stable guidance.

[0061] like Figure 3 As shown: The lifting platform 2 is a four-bar linkage lifting platform, including a support platform 19, a platform lifting cylinder 20, a front linkage mechanism 21, a platform ladder 22, a rear linkage mechanism 23, a first operating platform 24, and a hopper support frame 25. The anchor bolt drilling rig lifting mechanism 1, the first operating platform 24, the hopper support frame 25, and the lifting personnel platform 4 are arranged on the support platform 19. The anchor bolt storage hopper 10 is installed on the hopper support frame 25 and extends cantilevered towards the rear of the vehicle. The anchor bolt storage hopper 10 is a rectangular hopper, mainly used for storing anchor bolts, explosive cartridges, drill rods, pallets, and other anchoring materials.

[0062] The front linkage mechanism 21, the support platform 19, and the rear linkage mechanism 23 form a four-bar linkage lifting mechanism, which has the advantages of strong load-bearing capacity, good stability, and smooth lifting. The platform lifting cylinder 20 is used to drive the front linkage mechanism 21 to lift the support platform 19, with a lifting height of 1m. The platform ladder 22 extends downward from the support platform 19 and is mainly used for workers to climb from the ground to the platform position. The first operating panel 24 is mainly used for lifting control and overall machine movement control of the four-bar linkage lifting platform 2.

[0063] The entire four-link lifting platform 2 fully considers the platform's lifting overload capacity and the personnel's operation and passage space. Compared with the traditional guide column lifting method, it has significant advantages in terms of strong lifting capacity and stable lifting.

[0064] like Figure 8 As shown: The lifting platform 4 includes a fixed base 32, a lifting cylinder 33, a scissor lift mechanism 34, a platform body 35, a flip-up pedal 36, a pedal guardrail 37, and a platform guardrail 38; the fixed base 32 is used to fix the lifting cylinder 33 and the scissor lift mechanism 34; the lifting cylinder 33 is used to push the scissor lift mechanism 34 to achieve the lifting of the scissor lift mechanism 34; the scissor lift mechanism 34 has the characteristics of small space occupation and high lifting height, with a minimum folding height of only 0.2m and a maximum lifting height of 1m, which meets the lifting requirements. The main body 35 of the personnel platform is connected to the scissor lift mechanism 34. Foldable inward-folding ramps 36 are arranged on both sides of the platform. In the traveling state, the ramps 36 are folded back to ensure the machine's width for passage. In the anchoring state, the ramps 36 are unfolded to increase the platform area and ensure sufficient space for anchoring operations. Ramp guardrails 37 are arranged around the ramps 36 to protect personnel during anchoring operations. The ramp guardrails 37 are detachable; in the traveling state, they can be removed to allow the ramps 36 to fold and flip. Platform guardrails 38 are located at the front of the main body 35 of the personnel platform to ensure the safety of personnel during anchoring operations. The scissor lift mechanism 34 utilizes the relative sliding of support rollers 39 within the track groove 40 to achieve compression of the scissor mechanism.

[0065] like Figure 9 , Figure 10 As shown: The chassis 5 includes a front stabilizer shoe mounting bracket 41, a front stabilizer shoe support leg 42, a front stabilizer shoe support cylinder 43, a main frame 46, a track walking mechanism, a tail frame 50, a rear stabilizer shoe frame 53, a rear connecting rod mounting seat 51, a fire extinguisher mounting bracket 45, a lifting ring 49, a front connecting rod mounting seat 52, and a rear stabilizer shoe support cylinder 54.

[0066] The main frame 46 is the main structure of the traveling chassis 5 and the main fixed structure for arranging other components of the machine. The tail frame 50 is connected to the main frame 46 and is used to arrange the cab 6, hydraulic system 7, electrical control system 8 and automatic cable reel device 9. The track walking mechanism is installed at the bottom of the main frame 46. The front stabilizer shoe fixing frame 41 and the rear stabilizer shoe frame 53 are connected to the main frame 46. The front stabilizer shoe fixing frame 41 is used to fix the front stabilizer shoe support leg 42 and the front stabilizer shoe support cylinder 43. The front stabilizer shoe support leg 42 adopts a crab claw lateral support leg structure. The front stabilizer shoe support cylinder 43 is used to support the front stabilizer shoe support leg 42. When the front stabilizer shoe support leg 42 is on the ground, it exceeds the width of the machine, which greatly improves the lateral stability of the whole machine. The rear stabilizing shoe frame 53 adopts a rear-folding large support surface structure, which has the advantage of a large support area and good support effect on muddy road surfaces in tunnels. The rear stabilizing shoe support cylinder 54 is used to provide support force for the rear stabilizing shoe frame 53; the rear connecting rod fixing seat 51 is used to fix the rear connecting rod mechanism 23; the front connecting rod fixing seat 52 is used to fix the front connecting rod mechanism 21. The fire extinguisher mounting bracket 45 is mainly used to fix fire extinguishers, and the lifting ring 49 is used to lift the entire machine.

[0067] The tracked walking mechanism includes a track chain 47, a track frame guide wheel 44, and a hydraulic motor drive wheel 48. The track frame guide wheel 44 is the front guide device for the track chain, providing support for the front guidance of the track chain. The track chain 47 is the main actuator for the machine to move. Compared with wheeled anchor drilling rigs, it has the characteristics of small turning radius and low ground pressure. The hydraulic motor drive wheel 48 is the power supply device for the machine to move.

[0068] like Figure 12 , Figure 13 As shown: The automatic cable winding device 9 includes a cable winding drum 63, a cable winding device frame 64, a cable laying mechanism 65, cable winding idlers 66, and an operating valve 67. The cable winding drum 63 is driven by a built-in electric drive, and realizes automatic cable winding and storage through rotation and dragging. The cable winding device frame 64 is a cable storage bin, which can realize a large-capacity cable storage of 170m at a time. The drum body of the cable winding drum 63 and the cable laying mechanism 65 are placed inside the cable winding device frame 64. Several cable winding idlers 66 are arranged around the cable inlet of the cable winding device frame 64. The cable winding idlers 66 are used to feed the cable into the winding drum. The cable device frame 64 is a cable protection device that converts sliding friction into rolling friction, effectively protecting the cable from damage. The cable laying mechanism 65 is located between the cable inlet and the cable winding roller 66. The cable laying mechanism 65 is a double helix cable laying roller (a commercially available finished product), the length of which is aligned with the width of the cable winding roller 66. During the cable winding process, the cable swings left and right through the groove of the double helix cable laying roller and is evenly distributed on the cable winding drum 63, ensuring that the cable is evenly distributed on the cable winding drum 63. The operating valve 67 is installed outside the cable winding device frame 64 and is used to control the cable winding drum 63.

[0069] like Figure 11 As shown: The cab 6 consists of a pump station cover 55, a side ladder 56, a rear ladder 57, a rear hatch 58, a cab body 59, a seat 60, a second control panel 61, and a side hatch 62. The pump station cover 55 is the supporting frame of the cab 6 and also serves as a protective cover for the pump station and electrical control box. The side ladder 56 mainly facilitates access to the cab 6 for workers on the side of the machine. The rear hatch 58 is located near the hydraulic system 7 and the electrical control system 8, while the side hatch 62 is located on the side of the vehicle. The rear hatch 58 is mainly used for the inspection and maintenance of the pump station and electrical control box. The cab body 59 is the main activity area for the cab workers. The second control panel 61 integrates the machine's movement, front and rear stabilizer shoe support, four-link lifting platform lifting, lifting of the lifting-type personnel platform, automatic cable reel device, and other machine operation functions, and is the main operating platform for the overall machine control. To ensure the compactness of the overall fuselage width, the development and system layout of the cab have achieved the optimal design and development of the layout space. At the same time, the seat height and the front and rear positions of the control panel have fully considered the ergonomic requirements. The seat 60 and the second control panel 61 are installed inside the cab body 59.

[0070] like Figures 15-23As shown: When the compact two-arm side anchor drilling rig switches from the walking state to the anchoring state, the front and rear stabilizing shoes support the ground respectively. The four-link lifting platform is lifted to the predetermined position by the platform lifting cylinder 20, simultaneously lifting the side anchoring drilling rig 3 and the lifting personnel platform 4 to a certain height. After the four-link lifting platform is lifted into position, the lifting mechanism, under the action of the lifting cylinder 11, anchors and positions the side anchoring drilling rig 3. It adopts a large-section elliptical sleeve structure, which has good rigidity and strength, ensuring the stability of the side anchoring. After the lifting mechanism is lifted into position, the side anchoring drilling rig 3 is flipped from the vertical position to the left horizontal position under the action of the gear and rack rotary reducer 17. The left moving slide rail 18 and the right moving slide rail 15 slide relative to the fixed slide rail 16, adjusting the anchoring distance between the upper and lower side anchoring drilling rigs 3. Before drilling operations, to facilitate the operation of the drilling rig by anchor maintenance personnel, the personnel platform is a scissor-lift mechanism, which has the advantages of small minimum compression thickness and large lifting height. The height of the personnel is adjusted by lifting the personnel platform 4 to ensure the comfort of anchor drilling operations. The personnel platform 4 is an operating platform with a flip-up footboard and protective railings to ensure the safety of anchor maintenance personnel operating on the platform. Anchor maintenance personnel place drill rods into the two side drilling rigs to carry out drilling operations. The anchor maintenance drilling rig integrates an electro-hydraulic control system and can also be operated by remote control. During the anchor maintenance operation, the drill rods, anchor rods, explosive cartridges, trays, and mesh used for anchor support are all retrieved from the anchor rod storage hopper 10 located at the rear of the machine. The dual-drilling rig synchronous anchoring system boasts high efficiency. Its two-stage lifting scheme, employing both platform and lifting mechanism, significantly increases the sidewall anchoring stroke. The large lifting manned platform offers better safety and a more comfortable operating space compared to the narrow manned platform of traditional top-anchoring two-arm anchoring drill rigs. After anchoring the left sidewall tunnel, the sidewall anchoring drill rig can be quickly flipped to a horizontal position on the right side using the rack and pinion rotary reducer 17, without needing to be dismounted, by rotating it 180° in the opposite direction. After anchoring, the sidewall anchoring drill rig is flipped to a vertical position using the rack and pinion rotary reducer 17, the lifting mechanism descends to its initial position, the four-link lifting platform descends to its initial position, the front and rear stabilizing shoes are raised, and the entire machine moves forward to the next anchoring position. Due to the integrated automatic cable reel device 9, manual cable dragging is eliminated during the forward movement, greatly reducing worker workload. With a machine body of only 1.4m, it can pass other equipment such as belt conveyors in roadways, and has a strong adaptability to roadways.

[0071] This invention is a compact anchor drilling rig specifically developed for rapid anchoring of sidewall anchors and cables in roadways. It effectively solves the prominent problems of traditional roadway sidewall anchoring, which relies on manual labor, requires climbing ladders for operation, and involves high labor intensity. The entire machine adopts a combination of a large drilling rig lifting platform and a lifting personnel platform, enabling large-stroke adjustment for sidewall anchoring. A gear and rack rotary reducer allows for rapid adjustment of the sidewall drilling rig from the left side anchoring position to the right side anchoring position. Its compact design allows for quick interchange with tunneling machines, belt conveyors, and other equipment, greatly enhancing its maneuverability and adaptability to different roadways. It can be widely used for rapid anchoring of sidewall anchors and cables in various types of roadways.

[0072] The above description of the disclosed embodiments enables those skilled in the art to make or use the invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the invention. Therefore, the invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A compact two-arm side-mounted anchor bolt drilling rig, characterized in that: Includes a walking chassis (5), a bolt drilling rig lifting mechanism (1), a lifting manned platform (4), a bolt storage hopper (10), an automatic cable winding device (9), a lifting platform (2), a driver's cab (6), a hydraulic system (7), an electrical control system (8), and a side anchoring drilling rig (3). Automatic cable reel device (9), cab (6), hydraulic system (7) and electrical control system (8) are arranged at the rear of the walking chassis (5), and lifting platform (2) is installed at the front of the walking chassis (5). Anchor drilling rig lifting mechanism (1), lifting manned platform (4) and anchor storage hopper (10) are arranged on the lifting platform (2) from the front to the rear. The anchor drilling rig lifting mechanism (1) includes a lifting seat, a rotating seat and a folding unit. The fixed part of the lifting seat is connected to the lifting platform (2). The rotating seat is installed on the lifting component of the lifting seat, and the folding unit is installed on the rotating seat. The side-mounted anchor drilling rig (3) includes a secondary propulsion unit, a drill box (26) and an electro-hydraulic control box (31). The secondary propulsion unit is connected to the folding and unfolding components of the folding and unfolding unit to adjust the spacing of the drilling rig. The secondary propulsion unit and the folding and unfolding components are connected by a swing assembly to change the angle of the drilling rig. The drill box (26) is installed on the last propulsion component of the secondary propulsion unit. The lifting platform (2) is a four-bar linkage lifting platform, including a support platform (19), a platform lifting cylinder (20), a front linkage mechanism (21), a platform ladder (22), a rear linkage mechanism (23), a first operating table (24), and a hopper support frame (25). The anchor drilling rig lifting mechanism (1), the first operating platform (24), the hopper support frame (25) and the lifting platform (4) are arranged on the support platform (19). The anchor storage hopper (10) is installed on the hopper support frame (25) and extends outwards towards the rear of the vehicle. The front linkage mechanism (21), the support platform (19) and the rear linkage mechanism (23) form a four-bar linkage lifting mechanism. The platform lifting cylinder (20) is used to push the front linkage mechanism (21) to lift the support platform (19). The platform ladder (22) extends downward from the support platform (19). The aforementioned chassis (5) includes a front stabilizer shoe mounting bracket (41), a front stabilizer shoe support leg (42), a front stabilizer shoe support cylinder (43), a main frame (46), a track walking mechanism, a tail frame (50), a rear stabilizer shoe frame (53), a rear connecting rod mounting seat (51), a front connecting rod mounting seat (52), and a rear stabilizer shoe support cylinder (54). The main frame (46) is the main structure of the chassis (5). The tail frame (50) is connected to the main frame (46) and is used to house the cab (6), hydraulic system (7), electrical control system (8), and automatic cable reel device (9). The track walking mechanism is installed at the bottom of the main frame (46). The front stabilizer shoe mounting bracket (41) and the rear stabilizer shoe frame (53) are connected to the main frame (46). The front stabilizer shoe mounting bracket (41) is used to fix the front stabilizer shoe support leg (42) and the front stabilizer shoe support. The front stabilizer shoe support leg (42) adopts a crab claw lateral support leg structure, and the front stabilizer shoe support cylinder (43) is used to support the front stabilizer shoe support leg (42); the rear stabilizer shoe frame (53) adopts a rear-folding large support surface structure, and the rear stabilizer shoe support cylinder (54) is used to provide support force for the rear stabilizer shoe frame (53); the rear link fixing seat (51) is used to fix the rear link mechanism (23); and the front link fixing seat (52) is used to fix the front link mechanism (21).

2. The compact two-arm side-mounted anchor bolt drilling rig according to claim 1, characterized in that: The lifting seat includes a lifting cylinder (11), an inner sleeve (12) and an outer sleeve (13); the inner sleeve (12) and the outer sleeve (13) are connected by a frame-type sliding structure, and the lifting cylinder (11) is used to drive the outer sleeve (13) to lift relative to the inner sleeve (12); The rotating seat is a gear and rack rotary reducer (17); The folding unit includes a fixed slide rail (16), a right-side moving slide rail (15) and a left-side moving slide rail (18). The right-side moving slide rail (15) and the left-side moving slide rail (18) are slidably mounted on both sides of the fixed slide rail (16) and are each driven by a hydraulic cylinder. The two sets of secondary propulsion units are respectively hinged to the drilling rig swing seat (14) on the right moving slide rail (15) and the left moving slide rail (18) and driven to swing by the hydraulic cylinder; The secondary propulsion unit includes a slide assembly (27), a short feed cylinder (28), a frame assembly (29), and a long feed cylinder (30). The slide assembly (27) is a frame structure formed by connecting guide posts and support plates at both ends. The frame assembly (29) is used to support the slide assembly (27). The drill box (26) is slidably assembled on the slide assembly (27). The guide posts of the lower layer of the slide assembly (27) are engaged with the guide holes of the frame assembly (29), and the guide posts of the upper layer are engaged with the guide holes of the drill box (26). The long feed cylinder (30) is connected between the frame assembly (29) and the slide assembly (27), and the short feed cylinder (28) is connected between the slide assembly (27) and the drill box (26).

3. The compact two-arm side-mounted anchor bolt drilling rig according to claim 1, characterized in that: The lifting platform (4) includes a fixed base (32), a lifting cylinder (33), a scissor lift mechanism (34), a platform body (35), a flip-up pedal (36), a pedal guardrail (37), and a platform guardrail (38). The fixed base (32) is used to fix the lifting cylinder (33) and the scissor lift mechanism (34). The lifting cylinder (33) is used to push the scissor lift mechanism (34) to realize the lifting of the scissor lift mechanism (34). The platform body (35) is connected to the scissor lift mechanism (34). Flip-up pedals (36) that can be folded back are arranged on both sides of the platform. The pedal guardrail (37) is arranged around the flip-up pedals (36). The pedal guardrail (37) is detachable. The platform guardrail (38) is located on the front side of the platform body (35).

4. The compact two-arm side-mounted anchor bolt drilling rig according to claim 1, characterized in that: The automatic cable reel device (9) includes a cable reel (63), a cable reel frame (64), a cable laying mechanism (65), a cable reel roller (66), and an operating valve (67); the cable reel (63) is driven by a built-in electric drive, the cable reel frame (64) is a cable storage bin, and the cylinder of the cable reel (63) and the cable laying mechanism (65) are placed inside the cable reel frame (64); Several cable reel rollers (66) are arranged around the cable inlet of the cable reel frame (64). The cable laying mechanism (65) is located between the cable inlet and the cable reel rollers (66). The cable laying mechanism (65) is a double helical cable laying roller with its length aligned with the width of the cable reel rollers (66). An operating valve (67) is installed outside the cable reel frame (64) to control the cable reel rollers (63).

5. The compact two-arm side-mounted anchor bolt drilling rig according to claim 1, characterized in that: The cab (6) includes a pump station cover (55), a ladder, a hatch, a cab body (59), a seat (60), and a second control panel (61); the pump station cover (55) is the supporting frame of the cab (6), and also the protective cover for the pump station and the electrical control box; the ladder is installed between the hatch and the ground; the seat (60) and the second control panel (61) are installed inside the cab body (59).

6. The compact two-arm side-mounted anchor bolt drilling rig according to claim 5, characterized in that: The hatches are divided into a rear hatch (58) and a side hatch (62). The rear hatch (58) is close to the hydraulic system (7) and the electronic control system (8), while the side hatch (62) is located on the side of the vehicle.

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