A rock drilling rig with a laterally folding drill arm

Abstract

This utility model relates to a rock drilling rig with a laterally foldable drill arm, belonging to the technical field of mining rock drilling equipment. The technical solution is as follows: the lower part of the vehicle body is a chassis assembly, and a propeller assembly is installed at the front end of the drill arm mechanism; the rear end of the drill arm mechanism is hinged to the vehicle body via a lateral folding mechanism, and the drill arm mechanism and the propeller assembly can be folded together to the side of the vehicle body via the lateral folding mechanism. Because the drill arm of this utility model folds laterally, folding the drill arm to the side of the vehicle body does not increase the height of the rock drilling rig. The beneficial effects of this utility model are: folding the drill arm laterally towards the vehicle body shortens the overall length of the rock drilling rig without significantly increasing its overall height; it eliminates the need to disassemble the equipment; after folding, the rock drilling rig can be directly placed in the hoisting cage for relocation operations; the structure is simple, saving time and labor.

Description

Technical Field

[0001] This utility model relates to a rock drilling rig with a laterally foldable drill arm, belonging to the technical field of mining rock drilling equipment. Background Technology

[0002] A rock drilling rig, also known as a drilling rig, is a type of rock drilling equipment used in tunnel and underground engineering projects employing the drill-and-blast method. It can move and support multiple rock drills simultaneously for drilling operations. In accordance with the "four modernizations" requirements of mining production and construction, mechanization of mining is imperative. Existing rock drilling rigs generally use a traditional rock drilling luffing mechanism, consisting of a drill arm swing mechanism, a drill arm lifting mechanism, a drill arm, and a propulsion beam orientation mechanism. The overall length of a rock drilling rig is relatively long, generally exceeding 7 meters. However, because some hoisting cages have relatively small dimensions, the overall length of the rock drilling rig is limited by the space dimensions of the hoisting cage. When transferring between different levels underground, the equipment needs to be disassembled into several parts to accommodate the space dimensions of the hoisting cage. Furthermore, the complex structure of the rock drilling rig makes disassembling the equipment, placing it in the hoisting cage, and then reassembling it after transfer time time-consuming and labor-intensive, hindering transfer operations between different levels and reducing equipment utilization. In particular, the disassembly, loading, and relocation of rock drilling rigs consumes significant time, manpower, and material resources. To avoid the impact of equipment relocation in different sections, some underground mines typically purchase separate rock drilling rigs for each section. This increases the mine's equipment investment, and the low utilization rate of equipment due to idle equipment caused by the production rhythm of the middle sections. To address these issues, the applicant's Chinese patent application CN 202520713335.1, entitled "A Drill Arm Folding Mechanism for a Rock Drilling Rig," shortens the overall length of the rock drilling rig by folding the drill arm directly upwards towards the rig body, thus solving some problems. However, since the folding direction is upwards, it requires a space with a certain height to operate. Rock drilling rigs are used underground in mines, where the height of the tunnels is limited, making it difficult to find suitable space to accommodate the upward folding of the drill arm. Furthermore, the folded drill arm is located directly above the filling material, increasing the overall height of the rig body. When relocating to the hoisting cage, the increased height may prevent entry into the hoisting cage, hindering the smooth relocation. Utility Model Content

[0003] The purpose of this utility model is to provide a rock drilling rig with a laterally foldable drill arm. Folding the drill arm to the side of the rig shortens the overall length of the rock drilling rig without significantly increasing its overall height. It eliminates the need to disassemble the equipment. After folding, the rock drilling rig can be directly placed in the hoisting cage for relocation operations. The structure is simple, time-saving, and labor-saving, solving the problems existing in the background technology.

[0004] The technical solution of this utility model is:

[0005] A rock drilling rig with a laterally foldable drill arm includes a vehicle body, a drill arm mechanism, a chassis assembly, and a propeller assembly. The chassis assembly is located at the lower part of the vehicle body, and the propeller assembly is located at the front end of the drill arm mechanism. The rear end of the drill arm mechanism is hinged to the vehicle body through a lateral folding mechanism, and the drill arm mechanism and the propeller assembly together can be folded to the side of the vehicle body through the lateral folding mechanism.

[0006] Furthermore, the lateral folding mechanism can be any known and commonly used folding mechanism. For example, the lateral folding mechanism includes at least a folding arm cylinder, which is a spiral hydraulic cylinder known and commonly used in the art. The folding arm cylinder includes a cylinder barrel and a central shaft, with the central shaft located at the center of the cylinder barrel. Driven by hydraulic pressure, the cylinder barrel can rotate along the central shaft, and the cylinder barrel of the folding arm cylinder is connected to the drill arm mechanism.

[0007] Furthermore, the folding mechanism can also be composed of a folding arm cylinder and a swing arm cylinder installed in series; the drill arm mechanism includes a drill arm, and the swing arm cylinder has the same structure as the folding arm cylinder. The rear end of the drill arm is hinged to the cylinder barrel of the swing arm cylinder via pin II. The cylinder barrel of the folding arm cylinder is connected to the central axis of the swing arm cylinder. The cylinder barrel of the folding arm cylinder can rotate left and right around the central axis of the folding arm cylinder, and the cylinder barrel of the swing arm cylinder can rotate left and right around the central axis of the swing arm cylinder. The two-stage rotation of the folding arm cylinder and the swing arm cylinder makes the lateral folding smoother.

[0008] Furthermore, the side of the vehicle body is provided with a drill arm side stacking space, where the folded drill arm mechanism and propeller assembly are stacked.

[0009] Furthermore, an engine power system is installed at the rear of the vehicle body, the chassis assembly includes a running gear, and the main motor of the engine power system is installed between the engine power system and the running gear.

[0010] Furthermore, the chassis assembly also includes a cable reel, water pump, electrical control cabinet, control panel, and safety canopy mounted on the vehicle body; the safety canopy is a liftable structure and equipped with high-intensity lighting, with the driver's cab located below it, equipped with a seat. The driver can operate the equipment conveniently from the cab.

[0011] Furthermore, a retractable front step is installed at the front of the vehicle body, allowing the driver to stand on the front step to operate the rock drilling rig when it is folded.

[0012] Furthermore, the front of the vehicle body is provided with a mounting seat, and the upper and lower ends of the central shaft of the folding arm cylinder are respectively connected to the upper and lower parts of the mounting seat; the cylinder barrel of the folding arm cylinder is connected to the central shaft of the swing arm cylinder through a connecting plate.

[0013] Furthermore, the mounting base is fixed to the operating platform at the front of the vehicle body.

[0014] Furthermore, the drill arm mechanism also includes a lifting cylinder, one end of which is hinged to the cylinder of the swing arm cylinder, and the other end is hinged to the drill arm, driving the drill arm to swing up and down; the rear end of the drill arm is a fixed arm, and the front end is a rotating arm, which can rotate in both directions within the fixed arm; a swing angle motor is installed on the rotating arm of the drill arm, and the swing angle motor is mounted on the propeller assembly through pin I, driving the propeller assembly to swing left and right.

[0015] Furthermore, the propulsion assembly includes a rock drill, a propulsion beam, a slider, a directional body, a pitch cylinder, and a compensation cylinder. The swing motor is mounted on the directional body of the propulsion assembly via pin I. A pair of guide rails are respectively provided above and below the propulsion beam. The upper guide rail is mounted on the propulsion beam, and the rock drill is mounted on the upper guide rail, allowing it to slide back and forth along the upper guide rail. The lower guide rail is installed in the groove of the slider on the directional body. One end of the compensation cylinder is connected to the directional body, and the other end is connected to the propulsion beam. The extension and retraction of the compensation cylinder can push and pull the propulsion beam and the rock drill to slide back and forth along the directional body. One end of the pitch cylinder is connected to the directional body, and the other end is connected to the swing motor. The pitch cylinder drives the directional body to swing up and down along pin I.

[0016] Because the drill arm of this invention folds laterally, folding it to the side of the vehicle body does not increase the height of the drilling rig. Since there are many branching sections in mine roadways, the drilling rig can be folded and unfolded at these locations without requiring ample height space. The folded height is very low, not occupying space above the roadway, facilitating entry into the hoisting cage for relocation operations.

[0017] The beneficial effects of this utility model are: Folding the drill arm laterally towards the vehicle body shortens the overall length of the rock drilling rig without significantly increasing its overall height. It eliminates the need to disassemble the equipment; the folded rig can be directly placed inside the hoisting cage for relocation operations. The structure is simple, saving time and labor. Attached Figure Description

[0018] Figure 1 This is a front view schematic diagram of the drill arm of this utility model in its extended and folded state;

[0019] Figure 2 This is a top view of the drill arm of this utility model in its folded state;

[0020] Figure 3 This is a front view schematic diagram of the drill arm in the extended and folded state of this utility model;

[0021] Figure 4 This is a top view of the drill arm of this utility model in its folded state;

[0022] In the diagram: 1. Engine power system; 2. Vehicle body; 3. Cable reel; 4. Lighting; 5. Water pump; 6. Safety canopy; 7. Cabin; 8. Electrical control cabinet; 9. Control panel; 10. Rock drill; 11. Propulsion beam; 12. Slider; 13. Orientation body; 14. Pitch cylinder; 15. Pin I; 16. Compensation cylinder; 17. Swing motor; 18. Drill arm; 19. Lifting cylinder; 20. Pin II; 21. Swing arm cylinder; 22. Folding arm cylinder; 23. Front pedal; 24. Mounting seat; 25. Traveling device; 26. Fixed arm; 27. Drill arm side-folding space; 28. Side folding mechanism; 29. ​​Drill arm mechanism; 30. Chassis assembly; 31. Propulsion assembly. Detailed Implementation

[0023] The present invention will be further described below with reference to the accompanying drawings and examples.

[0024] See attached document Figure 1-4 A rock drilling rig with a side-folding drill arm includes a vehicle body 2, a drill arm mechanism 29, a chassis assembly 30, and a propeller assembly 31. The chassis assembly 30 is located at the lower part of the vehicle body 2, and the propeller assembly 31 is located at the front end of the drill arm mechanism 29. The rear end of the drill arm mechanism 29 is hinged to the vehicle body 2 through a side-folding mechanism 28. The drill arm mechanism 29 and the propeller assembly 31 can be folded together on the side of the vehicle body 2 through the side-folding mechanism 28.

[0025] The lateral folding mechanism 28 can be any known and commonly used folding mechanism. For example, the lateral folding mechanism 28 includes at least a folding arm cylinder 22, which is a spiral hydraulic cylinder known and commonly used in the art. The folding arm cylinder 22 includes a cylinder barrel and a central shaft. The central shaft is located at the center of the cylinder barrel. Driven by hydraulic pressure, the cylinder barrel can rotate along the central shaft. The cylinder barrel of the folding arm cylinder 22 is connected to the drill arm mechanism 29.

[0026] See attached document Figure 1 The folding mechanism 28 can also be composed of a folding arm cylinder 22 and a swing arm cylinder 21 connected in series; the drill arm mechanism 29 includes a drill arm 18, the swing arm cylinder 21 has the same structure as the folding arm cylinder 22, the rear end of the drill arm 18 is hinged to the cylinder of the swing arm cylinder 21 through a pin II 20, the cylinder of the folding arm cylinder 22 is connected to the central axis of the swing arm cylinder 21, the cylinder of the folding arm cylinder 22 can rotate left and right around the central axis of the folding arm cylinder 22, and the cylinder of the swing arm cylinder 21 can rotate left and right around the central axis of the swing arm cylinder 21.

[0027] See attached document Figure 2 The side of the vehicle body is provided with a drill arm side stacking space 27, where the folded drill arm mechanism 29 and the propeller assembly 31 are stacked.

[0028] See attached document Figure 1The engine power system 1 is installed at the rear of the vehicle body 2, and the chassis assembly 30 includes a walking device 25. The main motor of the engine power system 1 is installed between the engine power system and the walking device 25.

[0029] The chassis assembly 30 also includes a cable reel 3, a water pump 5, an electrical control cabinet 8, an operating console 9, and a safety canopy 6, all mounted on the vehicle body 2. The safety canopy 6 is a liftable structure and is equipped with high-intensity lighting 4. Below the safety canopy 6 is the driver's cab 7, which is equipped with a seat. The driver can operate the vehicle conveniently from the cab.

[0030] The vehicle body 2 is equipped with a retractable front foot pedal 23. When the rock drilling rig is folded, the driver can stand on the front foot pedal 23 to operate the rock drilling rig.

[0031] The drill arm mechanism 29 is installed at the front of the vehicle body 2. The front of the vehicle body 2 is provided with a mounting seat 24. The upper and lower ends of the vertical central shaft of the folding arm cylinder 22 are connected to the upper and lower parts of the mounting seat 24 respectively. The cylinder of the folding arm cylinder 22 is connected to the central shaft of the swing arm cylinder 21 through a connecting plate.

[0032] The mounting base 24 is fixed on the operating table 9 at the front of the vehicle body.

[0033] The drill arm mechanism 29 also includes a lifting cylinder 19, one end of which is hinged to the cylinder of the swing arm cylinder 21, and the other end is hinged to the drill arm 18, driving the drill arm 18 to swing up and down; the rear end of the drill arm 18 is a fixed arm 26, and the front end is a rotating arm, which can rotate in both directions within the fixed arm; a swing angle motor 17 is installed on the rotating arm of the drill arm 18, and the swing angle motor 17 is mounted on the propeller assembly 31 through the pin shaft I 15, driving the propeller assembly 31 to swing left and right.

[0034] The propeller assembly 31 includes a rock drill 10, a propulsion beam 11, a slider 12, a directional body 13, a pitch cylinder 14, and a compensation cylinder 16. The swing motor 17 is mounted on the directional body 13 of the propeller assembly 31 via a pin I 15. A pair of guide rails are provided above and below the propulsion beam 11. The upper guide rail is mounted on the propulsion beam 11, and the rock drill 10 is mounted on the upper guide rail, which can slide back and forth along the upper guide rail. The lower guide rail is installed in the groove of the slider 12 on the directional body 13. One end of the compensation cylinder 16 is connected to the directional body 13, and the other end is connected to the propulsion beam 11. The extension and retraction of the compensation cylinder 16 can push and pull the propulsion beam 11 and the rock drill 10 to slide back and forth along the directional body 13. One end of the pitch cylinder 14 is connected to the directional body 13, and the other end is connected to the swing motor 17. The pitch cylinder 14 drives the directional body 13 to swing up and down along the pin I 15.

[0035] Because the drill arm of this invention folds laterally, folding it to the side of the vehicle body does not increase the height of the drilling rig. Since there are many branching sections in mine roadways, the drilling rig can be folded and unfolded at these locations without requiring ample height space. The folded height is very low, not occupying space above the roadway, facilitating entry into the hoisting cage for relocation operations.

Claims

1. A drill rig jumbo with laterally foldable drill arms, comprising a car body (2), a drill arm mechanism (29), a chassis assembly (30) and a pusher assembly (31), the chassis assembly (30) being arranged in the lower part of the car body (2), the pusher assembly (31) being arranged in the front end of the drill arm mechanism (29); characterized in that: The rear end of the drill arm mechanism (29) is hinged to the vehicle body (2) via a side folding mechanism (28). The drill arm mechanism (29) and the propeller assembly (31) together can be folded to the side of the vehicle body (2) via the side folding mechanism (28).

2. A jumbo with laterally foldable drill arms according to claim 1, characterized in that: The lateral folding mechanism (28) includes at least a folding arm cylinder (22), which includes a cylinder barrel and a central shaft. The central shaft is located at the center of the cylinder barrel. The cylinder barrel can rotate along the central shaft by hydraulic drive. The cylinder barrel of the folding arm cylinder (22) is connected to the drill arm mechanism (29).

3. A rock drilling rig with a laterally foldable drill arm according to claim 2, characterized in that: The folding mechanism (28) can also be composed of a folding arm cylinder (22) and a swing arm cylinder (21) connected in series; the drill arm mechanism (29) includes a drill arm (18), the swing arm cylinder (21) has the same structure as the folding arm cylinder (22), the rear end of the drill arm (18) is hinged to the cylinder of the swing arm cylinder (21) through pin II (20), the cylinder of the folding arm cylinder (22) is connected to the central axis of the swing arm cylinder (21), the cylinder of the folding arm cylinder (22) can rotate left and right around the central axis of the folding arm cylinder (22), and the cylinder of the swing arm cylinder (21) can rotate left and right around the central axis of the swing arm cylinder (21).

4. A rock drilling rig with a laterally foldable drill arm according to claim 3, characterized in that: The side of the vehicle body (2) is provided with a drill arm side stacking space (27), and the folded drill arm mechanism (29) and the propeller assembly (31) are stacked in the drill arm side stacking space (27).

5. A rock drilling rig with a laterally foldable drill arm according to claim 3, characterized in that: The vehicle body (2) has an engine power system (1) installed at the rear. The chassis assembly (30) includes a walking device (25). The main motor of the engine power system (1) is installed between the engine power system and the walking device (25).

6. A rock drilling rig with a laterally foldable drill arm according to claim 5, characterized in that: The chassis assembly (30) also includes a cable reel (3), a water pump (5), an electrical control cabinet (8), an operating panel (9), and a safety canopy (6) mounted on the vehicle body (2); the safety canopy (6) is a liftable structure and is equipped with high-intensity lighting (4); below the safety canopy (6) is the driver's cab (7) and is equipped with a seat.

7. A rock drilling rig with a laterally foldable drill arm according to claim 3, characterized in that: The vehicle body (2) is equipped with a retractable front pedal (23).

8. A rock drilling rig with a laterally foldable drill arm according to claim 3, characterized in that: The front of the vehicle body (2) is provided with a mounting seat (24), and the upper and lower ends of the central shaft of the folding arm cylinder (22) are respectively connected to the upper and lower parts of the mounting seat (24); the cylinder of the folding arm cylinder (22) is connected to the central shaft of the swing arm cylinder (21) through a connecting plate.

9. A rock drilling rig with a laterally foldable drill arm according to claim 3, characterized in that: The drill arm mechanism (29) also includes a lifting cylinder (19). One end of the lifting cylinder (19) is hinged to the cylinder of the swing arm cylinder (21), and the other end is hinged to the drill arm (18), driving the drill arm (18) to swing up and down. The rear end of the drill arm (18) is a fixed arm (26), and the front end is a rotating arm. The rotating arm can rotate in both directions within the fixed arm. A swing angle motor (17) is installed on the rotating arm of the drill arm (18). The swing angle motor (17) is mounted on the propeller assembly (31) through the pin I (15). The swing angle motor (17) drives the propeller assembly (31) to swing left and right.

10. A rock drilling rig with a laterally foldable drill arm according to claim 9, characterized in that: The propeller assembly (31) includes a rock drill (10), a propulsion beam (11), a slider (12), a guide body (13), a pitch cylinder (14), and a compensation cylinder (16). The swing motor (17) is mounted on the guide body (13) of the propeller assembly (31) via a pin I (15). A pair of guide rails are provided above and below the propulsion beam (11). The upper guide rail is mounted on the propulsion beam (11), and the rock drill (10) is mounted on the upper guide rail. The rock drill (10) can slide back and forth along the upper guide rail. The lower guide rail is installed in the groove of the upper slider (12) of the directional body (13). One end of the compensation cylinder (16) is connected to the directional body (13), and the other end is connected to the propulsion beam (11). The extension and retraction of the compensation cylinder (16) can push and pull the propulsion beam (11) and the rock drill (10) to slide back and forth along the directional body (13). One end of the pitch cylinder (14) is connected to the directional body (13), and the other end is connected to the swing angle motor (17). The pitch cylinder (14) drives the directional body (13) to swing up and down along the pin shaft I (15).

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