Crawler-type full-hydraulic underground drill rig

Abstract

The utility model relates to the technical field of mining machinery, in particular to a crawler-type full-hydraulic underground drill rig which comprises a machine base and a crawler belt assembly arranged below the machine base, a supporting part not higher than the crawler belt assembly is arranged in the middle of the machine base in a sinking mode, a rotary seat is installed on the supporting part through a rotary disc, and a mast carrying a drilling assembly is arranged above the rotary seat. A composite swing mechanism for driving the mast to vertically turn over by 180 degrees is arranged between the rotary seat and the mast; the mast is vertically overturned by 180 degrees for drilling through the composite swing mechanism, the height of the overturning axis of the mast is adjusted through the first oil cylinder, the posture of the mast is leveled through the second oil cylinder, and therefore the height of the mast in the horizontal rotation process is increased, and the mast effectively avoids interference of surrounding components in the rotation drilling process. A walking system composed of a walking oil tank and a walking diesel engine is adopted, the limitation of the length of a cable is eliminated, the safety risk in operation is reduced, and the trafficability and maneuverability of the drilling machine in complex terrains are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of mining machinery, in particular to a crawler-type fully hydraulic tunnel drilling rig. Background Art

[0002] After years of development, underground tunnel technology in coal mines has made substantial leaps, and related research results have surpassed the international leading level. Among them, independently developed tunnel drills and equipment have been widely used in underground supplementary exploration of coal mines, gas extraction, water hazard prevention and control, geological anomaly detection, rock burst prevention and control, fire zone detection and water injection fire extinguishing. Using tunnel drills instead of ground drilling to explore deep mines can avoid surface cover and shallow goafs, which reduces the amount of drilling work, saves construction economic costs, and speeds up the progress of operations.

[0003] The current crawler tunnel drilling rig has the following disadvantages:

[0004] 1. When the mast is rotated for drilling according to the drilling process requirements, other components on the drilling rig (such as the operating table, power unit, etc.) are relatively high and easily interfere with the mast's stops, resulting in a limited rotation angle and difficulty in rotating according to the process requirements;

[0005] 2. The machine is driven by an electric motor, and the displacement of the main machine is greatly affected by the length of the cable. In addition, the use of cables over long distances is dangerous, has low maneuverability and high cost. Utility Model Content

[0006] The technical problem to be solved by the utility model is to provide a crawler-type fully hydraulic tunnel drilling rig in response to the deficiencies of the existing technology, which can not only realize the vertical flipping of the mast 180° for drilling, but also improve the horizontal height of the mast when it is horizontal, so that the mast can effectively avoid interference from surrounding components during rotary drilling; the drilling rig adopts a traveling oil tank and a traveling diesel engine to form a traveling system, the whole machine is not affected by the length of the cable, and reduces the space occupied by the crawler assembly, has strong maneuverability and low cost of use.

[0007] In order to achieve the above purpose, the present invention adopts the following technical solutions:

[0008] A crawler-type fully hydraulic tunnel drilling rig is characterized in that: it includes a machine base and a crawler assembly arranged below the machine base, the middle part of the machine base is sunken and provided with a support part which is not higher than the crawler assembly, the support part is provided with a swivel seat through a turntable, a mast carrying a drilling assembly is provided above the swivel seat, and a compound swing mechanism for driving the mast to flip vertically 180 degrees is provided between the swivel seat and the mast; the drilling assembly includes a clamp fixedly mounted on the front end of the mast, a guide seat and a crane fixedly mounted on the rear end of the mast, a horizontal slide slidably mounted on the mast between the clamp and the guide seat, a power head fixedly mounted on the horizontal slide, and a horizontal power mechanism for driving the power head to slide back and forth and adjust its position; the compound swing mechanism includes a swing frame hinged to the swivel seat through a first pin shaft, and a flip frame press-connected to the mast through a pressure plate, the swing frame and the flip frame are hinged through a second pin shaft, and a first oil cylinder for driving the swing frame to swing around the first pin shaft and a second oil cylinder for driving the flip frame to flip around the second pin shaft are installed on the swivel seat.

[0009] The technical problem to be solved by the present invention can be further achieved by the following steps: the horizontal power mechanism is a main oil cylinder, the cylinder barrel of the main oil cylinder is fixedly connected to the horizontal slide, and the piston rod of the main oil cylinder is connected to the front and rear ends of the mast.

[0010] The technical problem to be solved by the present invention can be further achieved by the following steps: V-shaped slide rails are fixed on the left and right sides of the top of the mast, and the open ends of the two V-shaped slide rails are arranged opposite to each other, and two V-shaped sliders are provided on the horizontal slide seat, which respectively cooperate with the two V-shaped slide rails.

[0011] The technical problem to be solved by the present invention can be further achieved by the following steps: a mast positioning mechanism is provided between the horizontal slide and the turning frame, and the mast positioning mechanism includes a stop block provided on one side of the mast, one end of the stop block is plugged into the horizontal slide, and the other end of the stop block is plugged into the stop seat fixedly mounted on the turning frame.

[0012] The technical problem to be solved by the present invention can be further achieved by the following steps: a turntable positioning mechanism is provided on the support portion, the turntable positioning mechanism includes a positioning block press-connected with the turntable, and the positioning block is detachably mounted on the support portion by bolts.

[0013] The technical problem to be solved by the present invention can be further achieved by the following steps: a driving mechanism for driving the crawler assembly to move is installed on the machine base, and the driving mechanism includes a traveling diesel engine connected to the crawler assembly, and a traveling oil tank arranged on one side of the traveling diesel engine and connected to the traveling diesel engine pipeline.

[0014] The technical problem to be solved by the present invention can be further achieved through the following steps: the power head is composed of a gear box and a hydraulic chuck.

[0015] The technical problem to be solved by the present invention can be further achieved by the following steps: a plurality of support legs driven by oil cylinders are respectively installed at the front and rear ends of the machine base.

[0016] The technical problem to be solved by the present invention can be further achieved through the following steps: a hydraulic winch is installed on one side of the swing frame.

[0017] Compared with the existing technology, the beneficial effects of the utility model are: by setting up a composite swing mechanism, the vertical flipping of the mast 180° for drilling is realized, and at the same time, the height of the mast flipping axis is adjusted by the first oil cylinder, and the mast posture is leveled by the second oil cylinder, thereby increasing the height of the mast during horizontal rotation, so that the mast can effectively avoid the interference of surrounding components during rotation drilling, significantly improving the flexibility and operating range of drilling operations, and ensuring that the drilling rig can complete drilling operations of various complex angles according to process requirements; the walking system composed of a walking fuel tank and a walking diesel engine is adopted to get rid of the limitation of cable length, increase the activity space of the drilling rig, and reduce the safety risks during operation. At the same time, this design also effectively reduces the space occupied by the crawler assembly, and improves the passability and maneuverability of the drilling rig in complex terrain. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a side view schematic diagram of the utility model;

[0019] Figure 2 It is a rear view schematic diagram of the utility model;

[0020] In the figure: 1-machine base; 2-crawler assembly; 3-support part; 4-slewing seat; 5-mast; 6-clamp; 7-guide seat; 8-overhead crane; 9-horizontal slide; 10-power head; 11-swing frame; 12-turning frame; 13-first cylinder; 14-second cylinder; 15-main cylinder; 16-V-type slide rail; 17-V-type slider; 18-stop block; 19-stop seat; 20-positioning block; 21-pressing plate; 22-travel diesel engine; 23-travel fuel tank; 24-support leg; 25-hydraulic winch; 26-operating table. DETAILED DESCRIPTION

[0021] The specific technical solutions of the present invention are further described below so that those skilled in the art can further understand the present invention, but it does not constitute a limitation to their rights.

[0022] In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside", "outside", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, they cannot be understood as limitations on the utility model.

[0023] Please refer to Figure 1-2 A crawler-type fully hydraulic tunnel drilling rig includes a machine base 1 and a crawler assembly 2 provided below the machine base 1. A support portion 3 is provided at the bottom of the machine base 1 and is not higher than the crawler assembly 2, so as to reduce the overall height of the drilling rig and improve its maneuverability. A swivel seat 4 is mounted on the support portion 3 via a turntable. A mast 5 carrying a drilling assembly is provided above the swivel seat 4. The swivel seat 4 can drive the mast 5 to rotate 360 ​​degrees horizontally. A compound swing mechanism is provided between the swivel seat 4 and the mast 5 to drive the mast 5 to flip 180 degrees vertically.

[0024] The drilling assembly includes a clamp 6 fixedly mounted on the front end of the mast 5, a guide seat 7 and a crown block 8 fixedly mounted on the rear end of the mast 5, a horizontal slide 9 slidably mounted on the mast 5 between the clamp 6 and the guide seat 7, a power head 10 fixedly mounted on the horizontal slide 9, and a horizontal power mechanism that drives the power head 10 to slide back and forth.

[0025] The composite swing mechanism includes a swing frame 11 hinged to the slewing seat 4 via a first pin, and a flip frame 12 pressed against the mast 5 via a pressure plate 21. The swing frame 11 and the flip frame 12 are hinged via a second pin. Mounted on the slewing seat 4 are a first oil cylinder 13 that drives the swing frame 11 to swing about the first pin, thereby adjusting the mast 5's flip axis, and a second oil cylinder 14 that drives the flip frame 12 to flip about the second pin, thereby adjusting the mast 5's pitch. When horizontal rotary drilling is required, the first oil cylinder 13 drives the swing arm to swing upward, raising the mast 5's flip axis (i.e., the second pin) to a height. After (or simultaneously with) reaching the required height, the second oil cylinder 14 pulls the flip frame 12, driving it to rotate about the second pin, returning the mast 5 to a horizontal position, achieving mast 5 height adjustment and effectively avoiding interference from surrounding components during rotary drilling. When vertical drilling is required, the first cylinder 13 drives the swing arm to swing upward. After reaching the set position (or simultaneously), the second cylinder 14 pulls the tilting frame 12 to rotate it about the second pin, placing the mast 5 in a vertical position and achieving a 180° vertical tilt for drilling. This coordination of the first and second cylinders 13, 14 allows both a 180° vertical tilt of the mast 5 for drilling and height adjustment in a horizontal position.

[0026] The clamp 6 is designed as a mechanical clamping and hydraulic opening principle mechanism, so that it can provide sufficient and stable clamping force even after the hydraulic system fails, preventing the drill from falling and other accidents; the guide seat 7 is used to share the weight of the drill rod when the tunnel drilling rig lifts the drill rod, reducing manpower and ensuring personnel safety; the overhead crane 8 is preferably the structure shown in CN218371362U. By setting an anti-rope jumping device, the risk of the wire rope jumping and getting stuck on the outside of the overhead crane 8 pulley during rope coring, resulting in the risk of wire rope breakage, and reducing the occurrence of accidents.

[0027] The horizontal power mechanism is a main oil cylinder 15, the cylinder barrel of the main oil cylinder 15 is fixedly connected to the horizontal slide 9, and the piston rod of the main oil cylinder 15 is fixedly connected to the front and rear ends of the mast 5. The hydraulic pressure acts on the main oil cylinder 15 to realize the forward and backward reciprocating drilling of the power head 10; the main oil cylinder 15 uses a two-stage equal thrust cylinder to make the feeding force and lifting force of the tunnel drilling rig equivalent, thereby ensuring the drilling and pulling ability of the tunnel drilling rig.

[0028] V-shaped rails 16 are fixedly mounted on both the left and right sides of the top of the mast 5, with the open ends of the two V-shaped rails 16 facing each other. Two V-shaped blocks 17 are mounted on the horizontal slide 9, each of which cooperates with the two V-shaped rails 16. The V-shaped rails 16 provide greater guidance accuracy when the translational slide slides forward and backward. Even if wear and tear cause gaps, the V-shaped rails 16 can immediately compensate. This not only ensures the stability of the tunnel drilling rig during drilling, but also extends the service life of the V-shaped rails 16, saving operating costs.

[0029] A mast positioning mechanism is provided between the horizontal slide 9 and the turning frame 12. The mast positioning mechanism includes a stop block 18 provided on one side of the mast 5. One end of the stop block 18 is plugged into the horizontal slide 9, and the other end of the stop block 18 is plugged into a stop seat 19 fixedly mounted on the turning frame 12. By loosening or pulling out the stop block 18, the main oil cylinder 15 moves forward or backward to achieve the forward and backward position adjustment function of the mast 5.

[0030] The support part 3 is provided with a turntable positioning mechanism, which includes a positioning block 20 press-fitted to the turntable. The positioning block 20 is detachably mounted on the support part 3 by bolts. By loosening or tightening the positioning block 20, the tunnel drill can rotate 360° horizontally to drill.

[0031] The base 1 is equipped with a drive mechanism that drives the track assembly 2. The drive mechanism includes a diesel engine 22 connected to the track assembly 2 and a fuel tank 23 located on one side of the engine and connected to the engine 22 via a pipeline. The track assembly 2 includes tracks and a motor that drives the tracks. The diesel engine 22 drives the motor via a hydraulic pump and hydraulic pipelines, driving the tracks forward and backward. By eliminating the original electric motor drive, the machine becomes more maneuverable, unaffected by cable length, and reduces the space occupied by the track platform, improving operational efficiency.

[0032] The power head 10 consists of a gearbox and a hydraulic chuck. A circulating cooler is added to reduce the high temperatures generated by the rotation of the power head 10. The power head 10 uses a normally closed chuck to clamp the drill pipe, and a hydraulic motor drives the gearbox to achieve rotation. The hydraulic chuck is mechanically clamped, and the slips within the chuck are removable and can be replaced with different slip sizes according to the diameter of the drill pipe.

[0033] A plurality of support legs 24 are respectively installed at the front and rear ends of the machine base 1. The support legs 24 are driven to unfold by a cylinder to provide stable support for the drilling rig; a hydraulic winch 25 is installed on one side of the swing frame 11.

[0034] Obviously, the embodiments described are only some of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the present invention.

Claims

1. A crawler-type fully hydraulic tunnel drilling rig, characterized by: The machine comprises a machine base and a crawler assembly arranged below the machine base, a support portion which is not higher than the crawler assembly is provided in the middle of the machine base, a slewing seat is installed on the support portion through a turntable, a mast carrying a drilling assembly is provided above the slewing seat, and a compound swing mechanism for driving the mast to flip vertically 180° is provided between the slewing seat and the mast; the drilling assembly comprises a clamp fixedly mounted on the front end of the mast, a guide seat and a crane fixedly mounted on the rear end of the mast, a horizontal slide slidably mounted on the mast between the clamp and the guide seat, a power head fixedly mounted on the horizontal slide, and a horizontal power mechanism for driving the power head to slide back and forth; the compound swing mechanism comprises a swing frame hinged to the slewing seat through a first pin shaft, and a flip frame press-fitted to the mast through a pressure plate, the swing frame and the flip frame are hinged through a second pin shaft, a first oil cylinder for driving the swing frame to swing around the first pin shaft, and a second oil cylinder for driving the flip frame to flip around the second pin shaft are installed on the slewing seat.

2. The crawler-type fully hydraulic tunnel drilling rig according to claim 1, characterized in that: The horizontal power mechanism is a main oil cylinder, the cylinder barrel of the main oil cylinder is fixedly connected to the horizontal slide, and the piston rod of the main oil cylinder is connected to the front and rear ends of the mast.

3. The crawler-type fully hydraulic tunnel drilling rig according to claim 1, characterized in that: V-shaped slide rails are fixedly provided on the left and right sides of the mast top, and the open ends of the two V-shaped slide rails are arranged opposite to each other. Two V-shaped sliding blocks are provided on the horizontal slide seat, which respectively match the two V-shaped slide rails.

4. The crawler-type fully hydraulic tunnel drilling rig according to claim 1, characterized in that: A mast positioning mechanism is provided between the horizontal slide and the turning frame. The mast positioning mechanism includes a stop block provided on one side of the mast. One end of the stop block is plugged into the horizontal slide, and the other end of the stop block is plugged into a stop seat fixed on the turning frame.

5. The crawler-type fully hydraulic tunnel drilling rig according to claim 1, characterized in that: The support portion is provided with a turntable positioning mechanism, which includes a positioning block press-connected with the turntable, and the positioning block is detachably mounted on the support portion by means of bolts.

6. The crawler-type fully hydraulic tunnel drilling rig according to claim 1, characterized in that: A driving mechanism for driving the crawler track assembly is installed on the machine base. The driving mechanism includes a traveling diesel engine connected to the crawler track assembly and a traveling oil tank arranged on one side of the traveling diesel engine and connected to the traveling diesel engine pipeline.

7. The crawler-type fully hydraulic tunnel drilling rig according to claim 1, characterized in that: The power head consists of a gear box and a hydraulic chuck.

8. The crawler-type fully hydraulic tunnel drilling rig according to claim 1, characterized in that: A plurality of support legs driven by oil cylinders are respectively installed at the front and rear ends of the machine base.

9. The crawler-type fully hydraulic tunnel drilling rig according to claim 1, characterized in that: A hydraulic winch is installed on one side of the swing frame.

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