Full-hydraulic caterpillar telescopic four-arm roof bolter

Abstract

The utility model relates to a coal mine underground full -hydraulic caterpillar band telescopic four -arm anchor rod drilling machine, including the vehicle body frame, four drill arms of horizontal arrangement, including the crossbeam of connecting four drill arms, with the telescopic arm of crossbeam rotary connection, and with telescopic arm hinged slip bush, the slip bush is along the height direction and links to each other on the stand, be equipped with the rotary drive device that drives telescopic arm to rotate along the vertical direction on the slip bush, be equipped with the slewing drive that drives the rotation of crossbeam on telescopic arm, the utility model discloses the setting of rotary drive, the drilling angle of drill arm is adjusted conveniently, thereby the angle of drilling is adjusted conveniently on site, through the height of slip bush, the height of telescopic arm is adjusted conveniently, thereby conveniently through drive device drive makes telescopic arm and drill arm rotate downwards to the inside, thereby reduce the volume, through the setting of four drill arms, guarantee the working efficiency of drilling, through the setting of displacement oil cylinder and support frame, conveniently drive drill arm to move back and forth on the transverse, thereby convenient drilling.

Description

Technical Field

[0001] This utility model relates to the field of drilling rigs, and more particularly to the field of tunnel drilling rig technology, specifically referring to a fully hydraulic crawler telescopic four-arm anchor bolt drilling rig for underground coal mines. Background Technology

[0002] In coal mine roadway construction, bolt support is a crucial element in ensuring roadway stability and safety. Bolt support is a common reinforcement method used during the excavation of mine roadways or highway tunnels. Typically, after drilling into the rock wall, anchoring agent is inserted deep into the borehole, and then bolts are used to evenly mix the anchoring agent deep within the borehole, ensuring that the bolts and rock wall form a stable whole, thus providing stable support.

[0003] Currently, anchor bolt drilling rigs are commonly used for drilling. However, the current drill arms are subject to many limitations, and the size of anchor bolt drilling rigs and their working ends is generally large. This makes it difficult to move the anchor bolts and the output end of the anchor bolt drilling rig due to the narrow space in the mine tunnel. Utility Model Content

[0004] This utility model addresses the shortcomings of existing technologies by providing a fully hydraulic crawler telescopic four-arm anchor bolt drilling rig for underground coal mines, which facilitates the storage of the drill arms while ensuring drilling efficiency.

[0005] This utility model is achieved through the following technical solution: a fully hydraulic tracked telescopic four-arm anchor bolt drilling rig for underground coal mines, including a vehicle frame, four drill arms arranged laterally, a crossbeam connecting the four drill arms, a telescopic arm rotatably connected to the crossbeam, and a sliding sleeve hinged to the telescopic arm. The sliding sleeve slides on a column along the height direction, and the sliding sleeve is provided with a drive device to drive the telescopic arm to rotate in the vertical direction. The telescopic arm is provided with a rotary drive to drive the crossbeam to rotate.

[0006] In use, this utility model facilitates the adjustment of the drilling angle of the drill arm through the rotary drive, thus enabling on-site adjustment of the drilling angle. The height of the telescopic arm can be adjusted through the height of the sliding sleeve, which facilitates the downward and inward rotation of the telescopic arm and the drill arm via the drive device, thereby reducing the volume. The four drill arms ensure drilling efficiency.

[0007] Preferably, the telescopic boom includes a large boom hinged to a sliding sleeve, and a small boom slidably connected to the large boom and rotatably connected to the crossbeam. The large boom is provided with a telescopic cylinder for driving the small boom to slide.

[0008] This preferred solution increases the working distance by incorporating telescopic cylinders, a boom, and a forearm, enabling operations across conveyor belts.

[0009] Preferably, the drive device includes a boom cylinder with its base hinged to a sliding sleeve and its extended end hinged to the boom.

[0010] In this preferred embodiment, the extension length of the boom cylinder is limited. When the boom cylinder extends, it drives the boom to rotate upward and outward, thereby realizing the extension and retraction of the telescopic boom.

[0011] Preferably, the drill arm is bolted to the corresponding support frame, the support frame slides along the length of the crossbeam, and the crossbeam is provided with a displacement cylinder that corresponds to the support frame and drives the support frame to slide.

[0012] This preferred solution, through the setting of displacement cylinder and support frame, facilitates the movement of the drill arm back and forth in the lateral direction, thereby making drilling easier.

[0013] Preferably, the vehicle frame is provided with a lifting cylinder extending in the height direction, the cylinder body of the lifting cylinder is fixedly connected to the sliding sleeve, and the extended end of the lifting cylinder is fixedly connected to the vehicle frame.

[0014] This preferred solution achieves the movement of the sliding sleeve in the height direction by setting up a lifting cylinder.

[0015] Preferably, there are two telescopic arms, which are symmetrically arranged about the crossbeam and connected by a laterally extending cross brace.

[0016] This preferred solution ensures the support strength of the crossbeam by setting up two telescopic arms, and improves the connection strength of the two telescopic arms by setting up a cross brace beam.

[0017] Preferably, both the crossbeam and the crossbeam are provided with two hinge supports, and the four hinge supports are arranged in a rectangular pattern. A standing platform is provided below the hinge supports, and the standing platform is connected to the four hinge supports by hinges.

[0018] This preferred solution achieves support for the combat platform through the setting of hinge supports and hinges.

[0019] Preferably, the column is provided with a support cylinder extending along the height direction, and the top of the support cylinder is hinged to a receiving plate that supports the roof of the tunnel.

[0020] This preferred solution uses a support cylinder and a connecting plate to support and fix the car body frame by placing the connecting plate on the roof of the tunnel.

[0021] Preferably, the forearm is connected to a front-mounted stabilizing hydraulic cylinder that extends forward and is supported on the sidewall of the tunnel.

[0022] When this preferred solution is in use, after the boom extends, the front stabilizing cylinder is simultaneously driven to extend forward, so that the extended end of the stabilizing cylinder is supported on the side wall of the tunnel, which stabilizes and improves the stability of the drilling operation.

[0023] The beneficial effects of this utility model are as follows: the rotary drive facilitates the adjustment of the drilling angle of the drill arm, thus facilitating on-site adjustment of the drilling angle; the height of the sliding sleeve facilitates the adjustment of the height of the telescopic arm, thus facilitating the downward and inward rotation of the telescopic arm and the drill arm via the drive device, thereby reducing the volume; the four drill arms ensure drilling efficiency; and the displacement cylinder and support frame facilitate the lateral movement of the drill arm, thus simplifying drilling. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the present invention unfolded without the installation of a stable hydraulic cylinder; Figure 2 This is a schematic diagram showing the present invention unfolding during the installation and stabilization of the hydraulic cylinder; Figure 3 This is a schematic diagram showing the present invention retracted when the hydraulic cylinder is installed and secured. As shown in the figure: 11. Column, 12. Lifting cylinder, 13. Sliding sleeve, 21. Boom, 22. Arm, 23. Boom extension cylinder, 24. Horizontal support beam, 31. Crossbeam, 32. Rotary drive, 33. Drill arm, 34. Support frame, 41. Personnel platform, 51. Support column, 52. Front stabilizing cylinder. Detailed Implementation

[0025] To clearly illustrate the technical features of this solution, the following detailed implementation method will be used to explain the solution.

[0026] See attached document Figure 1-3 This utility model relates to a fully hydraulic tracked telescopic four-arm anchor bolt drilling rig for underground coal mines, comprising a vehicle body assembly, a lifting assembly, an attitude adjustment assembly, a personnel platform 41, and a drill arm 33 crossbeam 31 assembly.

[0027] The vehicle body assembly includes a vehicle frame with tracks and a counterweight slide plate located on the vehicle frame. The vehicle frame assembly not only enables the drilling rig to move flexibly and turn easily, but the counterweight slide plate also plays a role in stabilizing the equipment during operation. The vehicle frame is also equipped with four rotating stabilizing cylinders arranged in a rectangular shape. The extended ends of the rotating stabilizing cylinders extend downwards, and support seats are fixed to the extended ends of the rotating stabilizing cylinders. During operation, the support seats support the ground, thus stabilizing the vehicle frame.

[0028] The lifting assembly includes two horizontally arranged columns 11, a sliding sleeve 13 slidably connected to the columns 11 along the height direction, and a lifting cylinder 12 that drives the sliding sleeve 13 to slide. The cylinder body of the lifting cylinder 12 is fixedly connected to the sliding sleeve 13, and the extended end of the lifting cylinder 12 is fixedly connected to the vehicle frame. The lifting cylinder 12 extends along the height direction, thereby enabling the sliding sleeve 13 to move up and down along the columns 11 under the drive of the lifting cylinder 12.

[0029] The posture adjustment assembly includes a telescopic arm corresponding to the sliding sleeve 13. The telescopic arm includes a large arm 22 hinged to the sliding sleeve 13 and a small arm 21 slidably connected within the large arm 22 and rotatably connected to the crossbeam 31. The large arm 22 is equipped with a telescopic cylinder that drives the small arm 21 to slide. Driven by the telescopic cylinder, the small arm 21 extends and retracts along the large arm 22, increasing the working distance and enabling operation across the conveyor belt.

[0030] The boom 22 is hinged to the sliding sleeve 13 via a hinge shaft that extends laterally. A boom extension cylinder 23 is also hinged to the sliding sleeve 13. The extended end of the boom extension cylinder 23 is hinged to the boom 22. The boom extension cylinder 23 extends and retracts, driving the telescopic boom to rotate around the hinge shaft, thus accommodating operations at different angles. The lifting cylinder 12 moves the sliding sleeve 13 along the height direction, thereby expanding the anchor bolt driving range.

[0031] A cross brace beam 24 is also provided between the two booms 22. The two ends of the cross brace beam 24 are bolted to the two booms 22 respectively, ensuring the overall rigidity of the two telescopic booms. Driven by the two boom extension cylinders 23, the telescopic booms can achieve synchronous displacement operation.

[0032] The drill arm 33 crossbeam 31 assembly includes a crossbeam 31, four drill arms 33, a displacement cylinder, a support frame 34, and a valve assembly.

[0033] The two ends of the crossbeam 31 are connected to two small arms 21 via rotary drives. Each small arm 21 is equipped with a rotary drive 32 that rotates the crossbeam 31, enabling ±45° drilling and anchoring of the cross section. Four drill arms 33 are arranged along the length of the crossbeam 31 and bolted to a support frame 34. The support frame 34 slides on the crossbeam 31. A displacement cylinder, which moves along the length of the crossbeam 31, is installed inside the crossbeam 31. One end of the displacement cylinder is fixed inside the crossbeam 31, and the other end is fixed to the support frame 34. Driven by the displacement cylinder, the drill arms 33 move back and forth to drill holes, achieving a maximum of eight holes within a 3200mm range, significantly improving anchoring efficiency. The drilling valve assembly is fixed to the drill arm 33 support frame 34, facilitating observation of the drilling process during operation and ensuring the accuracy of the drilling operation.

[0034] The standing platform 41 is the platform for operators to stand on during drilling operations. Two hinge supports are provided on both the crossbeam 24 and the crossbeam 31. The four hinge supports are arranged in a rectangular pattern. The standing platform 41 is located below the hinge supports. The standing platform 41 is connected to the four hinge supports by hinges. After the crossbeam 31 is adjusted to the correct angle, the standing platform 41 is installed. The height can be adjusted appropriately by the length of the hinges to meet the corresponding standing height of the operators when working on different height working surfaces.

[0035] The drilling rig is also equipped with a height-adjustable support and stabilization device. This device includes a support cylinder 51 located inside the column 11 and extending along the height direction. The top of the support cylinder 51 is hinged to a support plate that supports the roadway roof. The support plate supports the roadway roof upwards, thus applying a downward stabilizing force to the rig. The front end of the boom 21 is also connected to a forward-extending front stabilizing cylinder 52. The front stabilizing cylinder 52 is tilted downwards at 15° to support the coal face, preventing the drilling rig from tilting forward and thus improving the stability of the drilling operation.

[0036] The vehicle frame also houses an electrical system and a hydraulic system. The electrical system provides electrical power to all the actuators of the vehicle, and the hydraulic system provides kinetic energy to each actuator. Through hydraulic lines and control valves, actions such as walking and drilling are completed.

[0037] In use, the lifting assembly can flexibly adjust the height of the crossbeam 31, and the rotation of the crossbeam 31 can adjust the tilt angle of the drill arm 33, thereby expanding the working range and meeting the needs of anchor bolt construction at different heights and angles. At the same time, it ensures that the working position is horizontal, and the setting of the standing platform 41 makes it convenient for operators to stand and carry out construction.

[0038] The four drill arms 33 can operate simultaneously or independently, greatly improving the efficiency of anchor bolt construction.

[0039] The jacking and stabilizing device improves the stability of the drilling rig during operation, ensures drilling accuracy, and reduces construction quality problems caused by drilling rig shaking.

[0040] Of course, the above description is not limited to the examples above. Technical features of this utility model not described can be implemented by or using existing technology, and will not be repeated here. The above embodiments and drawings are only used to illustrate the technical solution of this utility model and are not intended to limit this utility model. This utility model has been described in detail with reference to preferred embodiments. Those skilled in the art should understand that any changes, modifications, additions or substitutions made by those skilled in the art within the scope of this utility model do not depart from the spirit of this utility model and should also fall within the protection scope of the claims of this utility model.

Claims

1. A full-hydraulic caterpillar telescopic four-arm roofbolter, comprising a vehicle frame, four horizontally arranged drilling arms (33), characterized in that: It includes a crossbeam (31) connecting four drill arms (33), a telescopic arm rotatably connected to the crossbeam (31), and a sliding sleeve (13) hinged to the telescopic arm. The sliding sleeve (13) slides on the column (11) along the height direction. The sliding sleeve (13) is provided with a drive device to drive the telescopic arm to rotate in the vertical direction. The telescopic arm is provided with a rotary drive (32) to drive the crossbeam (31) to rotate.

2. The coal mine fully-hydraulic crawler-mounted telescopic four-arm roofbolter according to claim 1, characterized in that: The telescopic arm includes a large arm (22) hinged to a sliding sleeve (13) and a small arm (21) slidably connected to the large arm (22) and rotatably connected to the crossbeam (31). The large arm (22) is provided with a telescopic cylinder for driving the small arm (21) to slide.

3. The fully hydraulic underground coal mine caterpillar telescopic four-armed roofbolter according to claim 2, characterized in that: The drive unit includes a boom cylinder (23) with its base hinged to the slide sleeve (13) and its extended end hinged to the boom (22).

4. The fully hydraulic underground coal mine caterpillar telescopic four-armed roofbolter according to claim 1, characterized in that: The drill arm (33) is bolted to the corresponding support frame (34). The support frame (34) slides along the length of the crossbeam (31) on the crossbeam (31). The crossbeam (31) is provided with a displacement cylinder that corresponds to the support frame (34) and drives the support frame (34) to slide.

5. The fully hydraulic underground coal mine caterpillar telescopic four-armed roof-bolt drill according to claim 1, characterized in that: The vehicle frame is provided with a lifting cylinder (12) extending along the height direction. The cylinder body of the lifting cylinder (12) is fixedly connected to the sliding sleeve (13), and the extended end of the lifting cylinder (12) is fixedly connected to the vehicle frame.

6. The fully hydraulic underground coal mine caterpillar telescopic four-armed roofbolter according to claim 1, characterized in that: The telescopic arm is provided in two parts, which are symmetrically arranged about the crossbeam (31) and connected by a transversely extending cross brace (24).

7. The fully hydraulic, four boom, caterpillar, telescopic, roof bolter for underground coal mining of claim 6, characterised in that: Two hinge supports are provided on both the cross brace beam (24) and the cross beam (31). The four hinge supports are arranged in a rectangular pattern. A standing platform (41) is provided below the hinge supports. The standing platform (41) is connected to the four hinge supports by hinges.

8. The fully hydraulic crawler-mounted telescopic four-arm anchor bolt drilling rig for underground coal mines according to claim 1, characterized in that: The column (11) is provided with a support cylinder (51) extending along the height direction, and the top of the support cylinder (51) is hinged to a support plate for supporting the roadway roof.

9. The fully hydraulic underground coal mine caterpillar telescopic four-armed roofbolter according to claim 2, characterized in that: The forearm (21) is connected to a front-mounted stabilizing cylinder (52) that extends forward and supports the side wall of the tunnel.

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