Crank arm drilling arch trolley

Abstract

A crank arm drilling arch trolley relates to the technical field of trolleys and comprises a wheel type engineering chassis, a left arch frame arm, a right arch frame arm and a drilling arm, the wheel type engineering chassis comprises a front cab, a motor pump set, a front drive axle assembly, a front hydraulic supporting leg, a rear drive axle assembly, a rear hydraulic supporting leg, a frame and a rear cab, the front cab, the motor pump set, the front drive axle assembly, the front hydraulic supporting leg, the rear drive axle assembly, the rear hydraulic supporting leg and the rear cab are sequentially arranged on the frame, the crank arm arch drilling trolley can rapidly achieve multi-truss vertical frame construction and drilling construction, the construction efficiency is high, the working procedure circulation time is greatly shortened, manual shoulder carrying is replaced with the mechanical arm, and the working efficiency is greatly improved. The labor intensity is reduced, the construction of the vertical arch frame and the anchor rod can be completed through one-time entering of one device, the working procedures are closely linked, the utilization rate of the device is high, and the investment cost is reduced.

Description

Technical Field

[0001] This utility model relates to the field of trolley technology, and in particular to a curved boom drilling trolley. Background Technology

[0002] When the surrounding rock is weak and fractured during tunnel construction, steel arch support is required to prevent the arch foot from shrinking and falling. Drilling and installation of anchor bolts and system anchor bolts should be carried out in a timely manner to improve the stability of the surrounding rock. The arch support and anchor bolt support processes are closely linked to ensure that the tunnel construction is carried out quickly and safely.

[0003] Currently, arch erection trolleys are widely used in China to replace traditional manual labor for arch erection. Arch erection is safe and efficient. Anchor bolt drilling is usually done manually or with a special anchor bolt trolley. Manual drilling is inefficient and does not meet the requirements of mechanized construction. On the other hand, anchor bolt trolleys increase the investment cost of large machinery and make it difficult for large machinery to enter and exit the site, resulting in long intervals between processes. Utility Model Content

[0004] The technical problem to be solved by this utility model is to overcome the existing defects and provide a curved boom arch drilling trolley, which can quickly realize the construction of multiple frames and drilling, with high construction efficiency and greatly reduced process cycle time. It replaces manual carrying with a robotic arm, reducing labor intensity. The construction of arch frames and anchor bolts can be completed in a single visit by a single machine. The process is closely connected, the equipment utilization rate is high, and the investment cost is reduced, which can effectively solve the problems in the background technology.

[0005] To achieve the aforementioned objective, this utility model adopts the following technical solution:

[0006] A boom drilling rig includes a wheeled engineering chassis, a left arch frame arm, a right arch frame arm, and a drilling arm. The wheeled engineering chassis includes a front cab, a motor-pump unit, a front drive axle assembly, a front hydraulic outrigger, a rear drive axle assembly, a rear hydraulic outrigger, a frame, and a rear cab. The front cab, motor-pump unit, front drive axle assembly, front hydraulic outrigger, rear drive axle assembly, rear hydraulic outrigger, and rear cab are sequentially mounted on the frame.

[0007] A slewing bearing is installed on the top of the frame, and the top of the slewing bearing is connected to the drill arm. A drive cylinder is installed on the top of the frame to drive the drill arm to swing left and right around the center of the slewing bearing.

[0008] The left and right arch frame arms are symmetrical structures, and both the left and right arch frame arms are hinged to the arm mounts on the vehicle frame.

[0009] Furthermore, the drill arm is fixedly connected to the outer ring of the slewing bearing by a screw, and the inner ring of the slewing bearing is fixedly connected to the frame by a screw.

[0010] Furthermore, the drill arm includes connecting rod one, turntable, connecting rod two, pitch cylinder one, pitch arm, telescopic arm, pitch cylinder two, rock drilling propulsion mechanism, rotary reducer and side support cylinder, with the turntable mounted on top of the slewing bearing;

[0011] The pitch arm is hinged to the top of the turntable, and the second connecting rod is rotatably connected to the side of the pitch arm. The other end of the second connecting rod is rotatably connected to the first pitch cylinder and the first connecting rod, respectively. The end of the first connecting rod is rotatably connected to the turntable, and the telescopic end of the first pitch cylinder is hinged to the pitch arm.

[0012] The end of the elevation boom is equipped with a second elevation cylinder for driving the telescopic boom to adjust its angle. The end of the telescopic boom is equipped with a rotary reducer, and the rotary reducer is equipped with a side-mounted cylinder for driving the rock drilling propulsion mechanism to adjust its angle.

[0013] Furthermore, the left arch frame arm includes a swing cylinder, a swing seat, a pitch cylinder, a telescopic arm, a leveling cylinder, an L-arm, a basket gripper mechanism assembly, and a rotary reducer;

[0014] The swing seat is hinged to the arm seat of the frame. The arm seat is equipped with a swing cylinder that drives the swing seat to swing. The swing seat is equipped with a pitch cylinder that drives the telescopic arm. The telescopic arm is equipped with a leveling cylinder that drives the L-arm. The end of the L-arm is connected to the basket gripper mechanism assembly through a rotary reducer.

[0015] Compared with the prior art, the beneficial effects of this utility model are as follows: This articulated boom drilling rig has the following advantages:

[0016] 1. It can quickly realize the construction of multiple frames and drilling, with high construction efficiency and greatly reduced process cycle time.

[0017] 2. It reduces labor intensity by replacing manual carrying with robotic arms.

[0018] 3. The construction of the arch frame and anchor bolts can be completed in a single visit using a single piece of equipment, with close coordination between the procedures.

[0019] 4. Its equipment has a high utilization rate, which reduces the cost of investment. Attached Figure Description

[0020] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0021] Figure 2 This is a partial structural diagram of the rear hydraulic outrigger of this utility model;

[0022] Figure 3 This is a partial structural diagram of the rock drilling propulsion mechanism of this utility model;

[0023] Figure 4 This is a partial structural diagram of the suspended platform gripper mechanism assembly of this utility model;

[0024] Figure 5 This is a schematic diagram of the left prefabricated arch frame structure of this utility model;

[0025] Figure 6 This is a schematic diagram of the right-side prefabricated arch frame structure of this utility model;

[0026] Figure 7 This is a partial structural diagram of the upper circulating arch frame of this utility model;

[0027] Figure 8 This is a schematic diagram of the anchor bolt construction structure of this utility model.

[0028] In the diagram: 1-Wheeled engineering chassis, 1.2-Front cab, 1.3-Motor pump unit, 1.4-Front drive axle assembly, 1.5-Front hydraulic outrigger, 1.6-Rear drive axle assembly, 1.7-Rear hydraulic outrigger, 1.8-Frame, 1.9-Rear cab, 2-Drill arm, 2.1-Linkage 1, 2.2-Turntable, 2.3-Linkage 2, 2.4-Pitch cylinder 1, 2.5-Pitch boom, 2.6-Telescopic boom, 2.7-Pitch cylinder 2, 2.8-Rock drilling propulsion mechanism, 2.9-Slewing reducer, 2.10-Side support cylinder, 3-Left arch support arm, 3.1-Swing cylinder, 3.2-Swing seat, 3.3-Pitch cylinder, 3.4-Telescopic boom, 3.5-Leveling cylinder, 3.6- L-arm, 3.7-Suspended basket gripper mechanism assembly, 3.8-Slewing reducer, 4-Right arch frame arm, 5-Slewing bearing, 6-Drive cylinder. Detailed Implementation

[0029] The present invention will be explained in detail through the following embodiments. The purpose of disclosing the present invention is to protect all technical improvements within the scope of the present invention.

[0030] Please see Figure 1-8 This embodiment provides a technical solution: a boom drilling rig, including a wheeled engineering chassis 1, a left arch frame arm 3, a right arch frame arm 4, and a drilling arm 2. The wheeled engineering chassis 1 includes a front cab 1.2, a motor pump unit 1.3, a front drive axle assembly 1.4, a front hydraulic outrigger 1.5, a rear drive axle assembly 1.6, a rear hydraulic outrigger 1.7, a frame 1.8, and a rear cab 1.9. The front cab 1.2, the motor pump unit 1.3, the front drive axle assembly 1.4, the front hydraulic outrigger 1.5, the rear drive axle assembly 1.6, the rear hydraulic outrigger 1.7, and the rear cab 1.9 are sequentially mounted on the frame 1.8.

[0031] A slewing bearing 5 is installed on the top of the frame 1.8. The top of the slewing bearing 5 is connected to the drill arm 2. A drive cylinder 6 is installed on the top of the frame 1.8 to drive the drill arm 2 to swing left and right around the center of the slewing bearing 5.

[0032] The left arch frame arm 3 and the right arch frame arm 4 are symmetrical structures, and both the left arch frame arm 3 and the right arch frame arm 4 are hinged to the arm seat of the 1.8 frame.

[0033] The drill arm 2 is fixedly connected to the outer ring of the slewing bearing 5 by a screw, and the inner ring of the slewing bearing 5 is fixedly connected to the frame 1.8 by a screw. The drill arm 2 includes a connecting rod 2.1, a turntable 2.2, a connecting rod 2.3, a pitch cylinder 2.4, a pitch arm 2.5, a telescopic arm 2.6, a pitch cylinder 2.7, a rock drilling propulsion mechanism 2.8, a rotary reducer 2.9, and a side-mounting cylinder 2.10. The turntable 2.2 is mounted on the top of the slewing bearing 5, and the pitch arm 2.5 is hinged to the top of the turntable 2.2. The connecting rod 2.3 is rotatably connected to the side of the pitch arm 2.5, and the other end of the connecting rod 2.3 is connected to the pitch cylinder 2.4. 2.4 and connecting rod 2.1 are rotatably connected. The end of connecting rod 2.1 is rotatably connected to turntable 2.2. The telescopic end of pitch cylinder 2.4 is hinged to pitch arm 2.5. Pitch cylinder 2.7, which drives telescopic arm 2.6 for angle adjustment, is installed at the end of pitch arm 2.5. Rotary reducer 2.9 is installed at the end of telescopic arm 2.6. Side-mounted cylinder 2.10, which drives rock drilling propulsion mechanism 2.8 for angle adjustment, is installed on rotary reducer 2.9. The working position of rock drilling propulsion mechanism 2.8 is adjusted by pitch cylinder 2.4, pitch cylinder 2.7, rotary reducer 2.9 and side-mounted cylinder 2.10.

[0034] The left arch arm 3 includes a swing cylinder 3.1, a swing seat 3.2, a pitch cylinder 3.3, a telescopic arm 3.4, a leveling cylinder 3.5, an L-arm 3.6, a basket gripper mechanism assembly 3.7, and a rotary reducer 3.8. The swing seat 3.2 is hinged to the arm seat of the frame 1.8. The swing cylinder 3.1, which drives the swing seat 3.2 to swing, is mounted on the arm seat 3.2. The pitch cylinder 3.3, which drives the telescopic arm 3.4, is mounted on the swing seat 3.2. The leveling cylinder 3.5, which drives the L-arm 3.6, is mounted on the telescopic arm 3.4. The end of the L-arm 3.6 is connected to the basket gripper mechanism assembly 3.7 through the rotary reducer 3.8. The working position of the basket gripper mechanism assembly 3.7 is adjusted by the swing cylinder 3.1, the pitch cylinder 3.3, the leveling cylinder 3.5, and the rotary reducer 3.8.

[0035] It can quickly realize the construction of multiple frames and drilling, with high construction efficiency and greatly reduced process cycle time. It replaces manual carrying with a robotic arm, reducing labor intensity. The construction of arch frame and anchor rod can be completed in a single visit by one piece of equipment. The process is closely connected, and its equipment utilization rate is high, reducing the input cost.

[0036] The working principle of the articulated boom drilling rig provided by this utility model is as follows:

[0037] 1. Precast arch frame fabrication: Each arch frame is usually divided into three sections: left, middle and right. Two or three arch frames are connected by bracing mesh and other means and welded firmly.

[0038] II. Erecting the arch frame:

[0039] The left arch frame boom 3 lifts the left section of the arch frame, while the right arch frame boom 4 lifts the middle section of the arch frame. They are then connected in mid-air. Workers stand inside the basket of the left arch frame boom 3 to connect the bolts between the two sections of the arch frame. (e.g.) Figure 5 (As shown)

[0040] The left arch frame arm 3's grab position moves upward, and the right arch frame arm 4 releases the arch frame to grab the right end of the arch frame and connects it with the middle section of the arch frame. Workers stand inside the basket of the right arch frame arm 4 to connect the bolts between the two sections of the arch frame. (e.g.) Figure 6 (As shown)

[0041] After the three arch sections are connected, the boom is adjusted to the designated position. Workers stand in the arch boom basket and weld the tie rods and mesh between the arch and the previous cycle to secure the arch. (e.g.) Figure 7 (As shown)

[0042] III. Anchor Bolt Construction: Retract the left and right arch frame arms, and operate drill arm 2 to perform drilling operations such as anchor bolting, system drilling, and pre-drilling of small guide pipes (e.g.) Figure 8 As shown in the figure, the left and right arch frame arms of the suspended basket assist manual labor in anchor bolt installation, welding and grouting.

[0043] It is worth noting that the components disclosed in the above embodiments are all general standard parts or parts known to those skilled in the art, and their structures and principles can be learned by those skilled in the art through technical manuals or conventional experimental methods.

[0044] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. For those skilled in the art, the specific meaning of the above terms in this utility model can be understood according to the specific circumstances. For example, a rotary connection can refer to a rotary connection through a bearing.

[0045] The parts of this utility model not described in detail are prior art. Although this utility model has been specifically shown and introduced in conjunction with preferred embodiments, there are many methods and approaches to implement this technical solution. The above description is only a preferred embodiment of this utility model. However, those skilled in the art should understand that various changes in form and detail can be made to this utility model without departing from the spirit and scope of this utility model as defined by the appended claims, and all such changes shall be within the protection scope of this utility model.

Claims

1. A boom drilling rig, comprising a wheeled engineering chassis (1), a left arch support arm (3), a right arch support arm (4), and a drill arm (2), characterized in that: The wheeled engineering chassis (1) includes a front cab (1.2), an electric motor pump unit (1.3), a front drive axle assembly (1.4), a front hydraulic outrigger (1.5), a rear drive axle assembly (1.6), a rear hydraulic outrigger (1.7), a frame (1.8), and a rear cab (1.9). The front cab (1.2), electric motor pump unit (1.3), front drive axle assembly (1.4), front hydraulic outrigger (1.5), rear drive axle assembly (1.6), rear hydraulic outrigger (1.7), and rear cab (1.9) are sequentially mounted on the frame (1.8). The top of the frame (1.8) is equipped with a slewing bearing (5), the top of the slewing bearing (5) is connected to the drill arm (2), and the top of the frame (1.8) is equipped with a drive cylinder (6) that drives the drill arm (2) to swing left and right around the center of the slewing bearing (5). The left arch arm (3) and the right arch arm (4) are symmetrical structures, and both the left arch arm (3) and the right arch arm (4) are hinged to the arm seat of the frame (1.8).

2. The articulated boom drilling rig according to claim 1, characterized in that: The drill arm (2) is fixedly connected to the outer ring of the slewing bearing (5) by a screw, and the inner ring of the slewing bearing (5) is fixedly connected to the frame (1.8) by a screw.

3. The articulated boom drilling rig according to claim 1, characterized in that: The drill arm (2) includes connecting rod one (2.1), turntable (2.2), connecting rod two (2.3), pitch cylinder one (2.4), pitch arm (2.5), telescopic arm (2.6), pitch cylinder two (2.7), rock drilling propulsion mechanism (2.8), rotary reducer (2.9) and side support cylinder (2.10). The turntable (2.2) is installed on top of the slewing bearing (5). The pitch arm (2.5) is hinged to the top of the turntable (2.2), and the second connecting rod (2.3) is rotatably connected to the side of the pitch arm (2.5). The other end of the second connecting rod (2.3) is rotatably connected to the first pitch cylinder (2.4) and the first connecting rod (2.1) respectively. The end of the first connecting rod (2.1) is rotatably connected to the turntable (2.2), and the telescopic end of the first pitch cylinder (2.4) is hinged to the pitch arm (2.5). The end of the elevation arm (2.5) is equipped with an elevation cylinder (2.7) for driving the telescopic arm (2.6) to adjust the angle. The end of the telescopic arm (2.6) is equipped with a rotary reducer (2.9). The rotary reducer (2.9) is equipped with a support cylinder (2.10) for driving the rock drilling propulsion mechanism (2.8) to adjust the angle.

4. The articulated boom drilling rig according to claim 1, characterized in that: The left arch frame arm (3) includes a swing cylinder (3.1), a swing seat (3.2), an elevation cylinder (3.3), a telescopic arm (3.4), a leveling cylinder (3.5), an L-arm (3.6), a basket gripper mechanism assembly (3.7), and a rotary reducer (3.8). The swing seat (3.2) is hinged to the arm seat of the frame (1.8). The arm seat is equipped with a swing cylinder (3.1) for driving the swing seat (3.2) to swing. The swing seat (3.2) is equipped with a pitch cylinder (3.3) for driving the telescopic arm (3.4). The telescopic arm (3.4) is equipped with a leveling cylinder (3.5) for driving the L-arm (3.6). The end of the L-arm (3.6) is connected to the basket gripper mechanism assembly (3.7) through a rotary reducer (3.8).

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