Excavation-to-change drilling machine for tunnel face

Abstract

The utility model belongs to the technical field of tunnel construction equipment, and particularly relates to an excavating and drilling machine for a tunnel face, which comprises a drilling frame, a connecting frame used for being connected with the front end of a movable arm or the front end of a bucket rod of an excavating machine is arranged at the upper end of the drilling frame, and a drilling arm assembly is arranged on the drilling frame through a lateral moving mechanism. And the lateral moving mechanism can drive the drilling arm assembly to move left and right. The drilling arm assembly is arranged on the drilling frame through the lateral moving mechanism, after the drilling frame determines the position through an excavator, movement of the drilling arm assembly can be achieved through the action of the lateral moving mechanism, machining can be conducted multiple times through one-time positioning, and therefore machining of the linear connecting hole is achieved, and the position accuracy of the linear connecting hole is guaranteed; the method can be used for cutting off the free face of the tunnel face.

Description

Technical Field

[0001] This utility model belongs to the technical field of tunnel construction equipment, specifically relating to a tunnel face excavator-to-drill rig. Background Technology

[0002] Currently, to address the drawbacks of drilling rigs, such as their bulkiness and complex structure, a common practice is to remove the boom or bucket from an excavator and install drilling equipment on the boom, thus converting it into a drilling rig. An example of this is disclosed in Chinese Patent CN109138853A. While this type of drilling rig overcomes the bulkiness and complex structure of tower drilling rigs, it requires cutting off the free face during tunnel face processing. This necessitates drilling straight holes. Although Chinese Patent CN109138853A can drill continuous holes, it requires repositioning each time, making it impossible to guarantee that the continuous holes will be straight. Utility Model Content

[0003] This utility model proposes to provide a tunnel face drilling machine that can process multiple holes in one positioning, thereby realizing the processing of multiple holes in a straight line, which can be used for cutting off the open face of the tunnel face.

[0004] Therefore, the technical solution adopted by this utility model is as follows: a tunnel face excavator-to-drill rig, including a drill frame, the upper end of which is provided with a connecting frame for connecting with the front end of the excavator boom or the front end of the stick, and a drill arm assembly is provided on the drill frame through a side-shifting mechanism, which can drive the drill arm assembly to move left and right.

[0005] As a preferred embodiment of the above scheme, the lateral displacement mechanism includes a lateral displacement screw that extends laterally and is rotatably mounted on the drill frame. A lateral displacement nut is screwed onto the lateral displacement screw. The lateral displacement nut is mounted on a lateral displacement box for connection with the drill arm assembly. A guide rod extends laterally on the drill frame for guiding left and right movement. The guide rod is slidably connected to the lateral displacement box. One end of the lateral displacement screw passes through the drill frame and is equipped with a lateral displacement hydraulic motor for driving the lateral displacement screw to rotate. The lateral displacement hydraulic motor is mounted on the drill frame via a corresponding bracket.

[0006] In a further preferred embodiment, the lifting mechanism includes a lifting frame and a lifting motor mounted on the lifting frame. The drill rod support plate is mounted on the lifting frame via a sliding plate, and the sliding plate can slide up and down relative to the lifting frame. The lifting motor is equipped with a chain drive mechanism, and the sliding plate is fixedly connected to the chain in the chain drive mechanism.

[0007] In a further preferred embodiment, a supplementary adjustment mechanism for further adjusting the vertical displacement of the drill rod is provided between the lifting frame and the lateral shifting mechanism. The supplementary adjustment mechanism includes a lifting cylinder with its fixed end set on the lateral shifting mechanism. A connecting block is provided between the output end of the lifting cylinder and the lifting frame. The connecting block is provided with a through hole for the chain in the chain drive mechanism to move.

[0008] In a further preferred embodiment, a positioning plate is provided below the drill rod, and the positioning plate is mounted on the lifting frame via foot plates, and a top column is provided on the positioning plate to ensure the stability of the drill rod during drilling.

[0009] Further preferably, both the drill frame and the foot plate are provided with conical tips for positioning the drill frame during drilling, and there are three such conical tips.

[0010] The beneficial effects of this utility model are as follows: the drill arm assembly is mounted on the drill frame through a side-shifting mechanism. After the drill frame is positioned by the excavator, the drill arm assembly can be moved by the action of the side-shifting mechanism, so that multiple processing can be performed with one positioning, thereby realizing the processing of the straight-line continuous hole and ensuring the positional accuracy of the straight-line continuous hole, so that it can be used for the cut-off of the free face of the tunnel face. Attached Figure Description

[0011] Figure 1 This is a three-dimensional illustration of the present invention. Figure 1 .

[0012] Figure 2 This is a three-dimensional illustration of the present invention. Figure 2 .

[0013] Figure 3 This is a three-dimensional illustration of the present invention. Figure 3 .

[0014] Reference numerals: Drill frame-100, Connecting frame-110, Lateral movement mechanism-200, Lateral movement screw-210, Lateral movement nut-220, Lateral movement box-230, Guide rod-240, Drill arm assembly-300, Drill rod-310, Rotary oil motor-320, Drill rod support plate-330, Lifting frame-340, Lifting motor-350, Sliding plate-360, Lifting cylinder-370, Connecting block-380, Positioning plate-390, Foot plate-410, Top column-420, Cone tip-430. Detailed Implementation

[0015] The present invention will be further described below with reference to embodiments and accompanying drawings:

[0016] like Figure 1-3As shown, a tunnel face excavator-to-drill rig mainly consists of a drill frame 100, a lateral shifting mechanism 200, and a drill arm assembly 300. The drill arm assembly 300 is mounted on the drill frame via the lateral shifting mechanism 200, which can drive the drill arm assembly 300 to move left and right. The upper end of the drill frame 100 is provided with a connecting frame 110 for connecting with the front end of the excavator's boom or the front end of the stick.

[0017] The lateral movement mechanism 200 includes a lateral movement screw 210 extending laterally and rotatably mounted on the drill frame 100. A lateral movement nut 220 is screwed onto the lateral movement screw 210, and the lateral movement nut 220 is mounted on a lateral movement box 230 for connection with the drill arm assembly 300. When the lateral movement screw rotates, the lateral movement nut moves on the lateral movement screw, thereby achieving lateral movement and movement of the drill arm assembly. To ensure lateral movement, guide rods 240 extend laterally on the drill frame 100 for guiding lateral movement, and the guide rods 240 are slidably connected to the lateral movement box 230. To achieve rotation of the lateral movement screw, one end of the lateral movement screw 210 passes through the drill frame 100 and is equipped with a lateral movement hydraulic motor for driving the rotation of the lateral movement screw 210. The lateral movement hydraulic motor is mounted on the drill frame 100 via a corresponding bracket.

[0018] The specific structure of the drill arm assembly 300 includes a drill rod 310 for drilling, a rotary oil motor 320 for driving the drill rod 310 to rotate at the upper end of the drill rod 310, and a drill rod support plate 330 for supporting the drill rod 310 at the upper end of the drill rod 310. The drill rod support plate 330 is mounted on a lifting mechanism, which is used to drive the drill rod 310 to move up and down to achieve drilling.

[0019] The lifting mechanism includes a lifting frame 340 and a lifting motor 350 mounted on the lifting frame 340. A drill pipe support plate 330 is mounted on the lifting frame 340 via a sliding plate 360, which can slide up and down relative to the lifting frame 340. A chain drive mechanism is provided on the lifting motor 350, and the sliding plate 360 ​​is fixedly connected to the chain in the chain drive mechanism. To guide the sliding motion, lifting slide plates extend to the left and right sides of the front side of the lifting frame, and corresponding lifting grooves are provided on the sliding plates to engage with the lifting slide plates.

[0020] Preferably, a supplementary adjustment mechanism for further adjusting the vertical displacement of the drill rod is provided between the lifting frame 340 and the lateral shifting mechanism 200. Specifically, the supplementary adjustment mechanism includes a lifting cylinder 370 with its fixed end mounted on the lateral shifting mechanism 200, and a connecting block 380 is provided between the output end of the lifting cylinder 370 and the lifting frame 340. The connecting block 380 has a through hole for the chain to move in the chain drive mechanism.

[0021] The lifting mechanism and drill rod can be moved up and down by supplementary adjustment mechanism. The lifting mechanism is used to move the drill rod up and down. The combination of supplementary adjustment mechanism and lifting mechanism can effectively increase the drilling depth. To facilitate the cooling of the drill bit at the front end of the drill rod, a spray system is equipped on the drill frame to cool and reduce dust on the drill bit. The spray system adopts existing technology.

[0022] To ensure the stability of the drill rod during operation, a positioning plate 390 is provided below the drill rod 310. The positioning plate 390 is mounted on the lifting frame via a foot plate 410, and a top column 420 is provided on the positioning plate 390 to ensure the stability of the drill rod during drilling. Preferably, the top column is a cone.

[0023] To ensure the stability of the drill arm during drilling, three cone tips 430 are provided on both the drill frame 100 and the foot plate 410 for positioning the drill frame during drilling. Specifically, one cone tip 430 is provided on the foot plate, and the other two are provided at intervals on the bottom of the drill frame.

Claims

1. A tunnel face drilling rig, characterized in that: The device includes a drill frame (100), the upper end of which is provided with a connecting frame (110) for connecting with the front end of the excavator boom or the front end of the stick. A drill arm assembly (300) is provided on the drill frame (100) via a side-shifting mechanism (200), and the side-shifting mechanism (200) can drive the drill arm assembly (300) to move left and right.

2. The tunnel face drilling rig according to claim 1, characterized in that: The lateral shifting mechanism (200) includes a lateral shifting screw (210) that extends laterally and is rotatably mounted on the drill frame (100). A lateral shifting nut (220) is screwed onto the lateral shifting screw (210). The lateral shifting nut (220) is mounted on a lateral shifting box (230) that is provided for connection with the drill arm assembly (300). A guide rod (240) extends laterally on the drill frame (100) for guiding left and right movement. The guide rod (240) is slidably connected to the lateral shifting box (230). One end of the lateral shifting screw (210) passes through the drill frame (100) and is provided with a lateral shifting oil motor for driving the lateral shifting screw (210) to rotate. The lateral shifting oil motor is mounted on the drill frame (100) by a corresponding bracket.

3. The tunnel face drilling rig according to claim 1, characterized in that: The drill arm assembly (300) includes a drill rod (310) for drilling. The upper end of the drill rod (310) is provided with a rotary oil motor (320) for driving the drill rod (310) to rotate. The upper end of the drill rod (310) is provided with a drill rod support plate (330) for supporting the drill rod (310). The drill rod support plate (330) is mounted on a lifting mechanism. The lifting mechanism is used to drive the drill rod (310) to move up and down to achieve drilling.

4. The tunnel face drilling rig according to claim 3, characterized in that: The lifting mechanism includes a lifting frame (340) and a lifting motor (350) mounted on the lifting frame (340). The drill rod support plate (330) is mounted on the lifting frame (340) via a sliding plate (360), and the sliding plate (360) can slide up and down relative to the lifting frame (340). The lifting motor (350) is equipped with a chain drive mechanism, and the sliding plate (360) is fixedly connected to the chain in the chain drive mechanism.

5. The tunnel face drilling rig according to claim 4, characterized in that: A supplementary adjustment mechanism for further adjusting the vertical displacement of the drill rod is provided between the lifting frame (340) and the side-shifting mechanism (200). The supplementary adjustment mechanism includes a lifting cylinder (370) with its fixed end set on the side-shifting mechanism (200). A connecting block (380) is provided between the output end of the lifting cylinder (370) and the lifting frame (340). A through hole is provided on the connecting block (380) for the chain to move in the chain drive mechanism.

6. The tunnel face drilling rig according to claim 3, characterized in that: A positioning plate (390) is provided below the drill rod (310). The positioning plate (390) is mounted on the lifting frame via a foot plate (410), and a top column (420) is provided on the positioning plate (390) to ensure the stability of the drill rod during drilling.

7. The tunnel face drilling rig according to claim 6, characterized in that: Both the drill frame (100) and the foot plate (410) are provided with cone tips (430) for positioning the drill frame during drilling, and there are three cone tips (430).

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