Impact crushing, milling and digging device

Abstract

The utility model relates to the field of tunnel construction, in particular to an impact crushing, milling and excavating device. The device comprises a mounting seat, a drilling assembly and a propelling mechanism, the drilling assemblies are arranged on the sliding frame side by side, and each drilling assembly comprises a rock drill, a drill rod connected with the output end of the rock drill, a crushing device provided with a channel allowing the drill rod to penetrate through, and a sliding seat allowing the crushing device to slide; the propelling mechanism is arranged on the mounting base and drives the drilling assembly to advance. According to the utility model, rocks are broken through rotary drilling and extrusion drilling.

Description

Technical Field

[0001] The utility model relates to the field of tunnel construction, in particular to an impact extrusion and milling excavation device. Background Technique

[0002] In the mechanical excavation construction of tunnels, tunneling machines are restricted to a certain extent by the size of the tunnel cross-section. For small cross-section tunnels, large tunneling machines may not be able to enter or have limited operating space, and the maintenance and repair operations of the equipment are inconvenient; for extra-large cross-section tunnels, the existing mechanical technologies may face challenges in terms of excavation capacity and stability. The mechanical excavation of extra-large cross-section tunnels requires higher power and stronger structural support, and the design and manufacturing of the equipment are more difficult, and mechanical failures and safety hazards are likely to occur during the construction process.

[0003] After the tunnel is blasted, there will still be some under-excavated rocks, which affect the next primary lining process and need to be broken before proceeding; the existing equipment cannot accurately break the under-excavated part. Content of the Utility Model

[0004] The purpose of the utility model is to propose an impact extrusion and milling excavation device that breaks rocks by rotary drilling and extrusion drilling in view of the problems existing in the background technique.

[0005] The technical solution of the utility model, the impact extrusion and milling excavation device, includes a mounting seat, a drilling component and a propulsion mechanism; multiple groups of drilling components are arranged side by side on a sliding frame, including a rock drill, a drill rod connected to the output end of the rock drill, a squeezing breaker having a channel for the drill rod to pass through, and a sliding seat for the squeezing breaker to slide; the propulsion mechanism is arranged on the mounting seat and drives the drilling component to move forward.

[0006] Preferably, the squeezing breaker includes an integrally connected mounting frame part and a squeezing head part, the mounting frame part includes an integrally connected sliding plate part and a connecting plate part, the squeezing head part includes a squeezing cylinder part and two triangular knife parts arranged on the outer periphery of the squeezing cylinder part, and the front end of the squeezing cylinder part is distributed in a conical shape.

[0007] Preferably, the triangular knife part is a three-section structure with a stepped shape and gradually increasing slope, and the cross-sectional dimensions of the three-section structure gradually increase from front to back.

[0008] Preferably, the drill rod includes a hexagonal prism section, a round rod section and a drill head connected in sequence, and a circular ring part arranged on the round rod section, the round rod section is an elastic structure, the hexagonal prism section is connected and matched with the output end of the rock drill, the round rod section passes through the channel on the squeezing breaker, and the circular ring part is located behind the mounting frame part.

[0009] Preferably, the sliding seat includes a first pressing plate, a second pressing plate connected to the first pressing plate, and a plurality of self-lubricating copper blocks arranged on both sides of the sliding plate part and slidably connected to the first pressing plate and the second pressing plate respectively.

[0010] Preferably, the second pressing plate has an activity groove for the sliding plate portion to move. The activity groove is a U-shaped groove and is open at the bottom.

[0011] Preferably, the propulsion mechanism includes a guide rail frame arranged on the mounting base, a sliding frame slidably arranged on the guide rail frame, and a propulsion oil cylinder with two ends respectively connected to the guide rail frame and the sliding frame. The rock drill is arranged on the sliding frame, the sliding seat is arranged at the front end of the sliding frame, a bearing seat is arranged on the sliding frame, and a bearing connected to the drill rod is arranged on the bearing seat.

[0012] Preferably, a rubber pad is connected between the first pressing plate and the sliding frame.

[0013] Preferably, the mounting base includes a rotating seat, a slewing drive device arranged on the rotating seat and driving the guide rail frame to rotate, and an excavator mounting frame arranged on the rotating seat.

[0014] Compared with the prior art, the utility model has the following beneficial technical effects:

[0015] The utility model breaks rocks by rotary drilling and squeezing-in drilling. The rock drill provides rotational power for the drill rod. The drill rod drills a hole in the under-excavated rock, and the squeezer squeezes open the hole when continuing to move, intermittently impacting the rock, causing the rock to crack and completing the rock breaking treatment. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 is a schematic structural diagram of an embodiment of the utility model;

[0017] Figure 2 is a partial structural schematic diagram of an embodiment of the utility model;

[0018] Figure 3 is a schematic structural diagram of the drill rod;

[0019] Figure 4 is a schematic structural diagram of the squeezer;

[0020] Figure 5 is a schematic structural diagram of the second pressing plate;

[0021] Figure 6 is a schematic structural diagram of the embodiment of the utility model installed on the bucket part of an excavator for tunnel construction;

[0022] Figure 7 is Figure 6 the enlarged structural diagram at A in

[0023] Reference numerals: 1, excavator mounting frame; 2, rotating seat; 3, guide rail frame; 4, propulsion cylinder; 5, sliding frame; 6, rock drill; 7, drill rod; 71, hexagonal prism section; 72, round rod section; 73, ring part; 74, drill head part; 8, bearing seat; 9, squeezing and breaking device; 91, mounting frame part; 911, sliding plate part; 912, connecting plate part; 92, squeezing and breaking head; 921, squeezing-in cylinder part; 922, three-edge knife part; 10, first pressing plate; 11, second pressing plate; 111, movable groove; 12, self-lubricating copper block; 13, rubber pad. Detailed implementation manners

[0024] Embodiment 1

[0025] As Figures 1 - 7 shown, the impact squeezing and milling excavation device proposed in this embodiment includes a mounting seat, a drilling assembly, and a propulsion mechanism.

[0026] Multiple groups of drilling assemblies are arranged side by side on the sliding frame 5. In this embodiment, five groups of drilling assemblies are used, and other numbers of groups of drilling assemblies can also be used. Each group of drilling assemblies includes a rock drill 6, a drill rod 7 connected to the output end of the rock drill 6, a squeezing and breaking device 9 having a channel for the drill rod 7 to pass through, and a sliding seat for the squeezing and breaking device 9 to slide. The drill rod 7 provides support for the squeezing and breaking device 9. The rock drill 6 is a pneumatic or hydraulic rock drill, such as a YT28 pneumatic rock drill or a YD150 hydraulic rock drill, which drives the drill rod 7 to rotate, and the drill rod 7 drills holes in the rock. The squeezing and breaking device 9 includes an integrally connected mounting frame part 91 and a squeezing and breaking head 92. The mounting frame part 91 includes an integrally connected sliding plate part 911 and a connecting plate part 912. The squeezing and breaking head 92 includes a squeezing-in cylinder part 921 and two three-edge knife parts 922 arranged on the outer periphery of the squeezing-in cylinder part 921. The front end of the squeezing-in cylinder part 921 is tapered and is easy to squeeze into the drill hole, and then the rock is squeezed and broken at the drill hole by the three-edge knife parts 922. The three-edge knife parts 922 are of a stepped structure with a gradually increasing slope, and the cross-sectional dimensions of the three-section structure gradually increase from front to back, so that the impact force can be fully utilized and the cracked opening can be gradually enlarged to split the rock. The two three-edge knife parts 922 are horizontally symmetrically distributed and can squeeze and crack the rock up and down.

[0027] The drill rod 7 includes a hexagonal prism section 71, a round rod section 72, and a drill head part 74 connected in sequence, and a ring part 73 arranged on the round rod section 72. The round rod section 72 is an elastic structure. The hexagonal prism section 71 is connected and matched with the output end of the rock drill 6. The round rod section 72 is restricted by the squeezing and breaking device 9 and is always in an elastic deformation state. The round rod section 72 passes through the channel on the squeezing and breaking device 9. The ring part 73 is located behind the mounting frame part 91. When the round rod section 72 is elastically deformed, the ring part 73 intermittently pushes the squeezing and breaking device 9, so that the squeezing and breaking device 9 can intermittently impact the drill hole, improving the cracking effect and efficiency on the rock.

[0028] As Figure 2 andFigure 5 As shown in the figure, the sliding seat includes a first pressing plate 10, a second pressing plate 11 connected to the first pressing plate 10, and a plurality of self-lubricating copper blocks 12 disposed on both sides of the sliding plate portion 911 and slidably connected to the first pressing plate 10 and the second pressing plate 11 respectively. The second pressing plate 11 has an activity groove 111 for the sliding plate portion 911 to move. The activity groove 111 is a U-shaped groove with an open bottom. The sliding plate portion 911 has a certain movement distance between the first pressing plate 10 and the second pressing plate 11. The self-lubricating copper blocks 12 are used to reduce the friction during sliding. The circular ring portion 73 confines the sliding plate portion 911 between the first pressing plate 10 and the second pressing plate 11.

[0029] The propulsion mechanism is arranged on the mounting seat and drives the drilling assembly to advance, so that the drill rod 7 drills a hole in the rock through the drill head 74, and can enable the rock breaker 9 to crack the rock at the hole.

[0030] In this embodiment, the rock is broken by rotary drilling and squeezing into the hole. The rock drill 6 provides rotational power for the drill rod 7. The drill rod 7 drills a hole in the under-excavated rock. As the drill rod 7 continues to penetrate, the rock breaker 9 abuts against the hole and squeezes the hole open during continuous movement, causing the rock to crack. The rock breaker 9 intermittently impacts the rock, effectively ensuring that the rock is cracked at the hole.

[0031] Embodiment 2

[0032] As Figures 1 - 7 shown in the figure, for the impact extrusion milling and excavation device proposed in this embodiment, compared with Embodiment 1, in this embodiment, the propulsion mechanism includes a guide rail frame 3 arranged on the mounting seat, a sliding frame 5 slidably arranged on the guide rail frame 3, and a propulsion oil cylinder 4 with both ends connected to the guide rail frame 3 and the sliding frame 5 respectively. When the propulsion oil cylinder 4 extends, it drives the sliding frame 5 to slide forward, and uses the drilling assembly to drill and break the rock. The rock drill 6 is arranged on the sliding frame 5, the sliding seat is arranged at the front end of the sliding frame 5, a bearing seat 8 is arranged on the sliding frame 5, and a bearing connected to the drill rod 7 is arranged on the bearing seat 8. The bearing can provide auxiliary support for the rotation of the drill rod 7, and the round rod section 72 is restricted by the bearing seat 8.

[0033] A rubber pad 13 is connected between the first pressing plate 10 and the sliding frame 5 to reduce the vibration impact between the first pressing plate 10 and the sliding frame 5.

[0034] As Figure 1 shown in the figure, the mounting seat includes a rotating seat 2, a slewing drive device arranged on the rotating seat 2 and driving the guide rail frame 3 to rotate, and an excavator mounting frame 1 arranged on the rotating seat 2. As Figure 6 and Figure 7As shown, the excavator mounting frame 1 is installed at the outermost end of the excavator arm. The bucket installed at the outer end of the excavator arm of the existing excavator is removed, and at the position where the bucket is connected to the excavator arm, the excavator mounting frame 1 is reinstalled at the same position, that is, the excavator mounting frame 1 is rotatably connected to two corresponding positions of the excavator arm at two places respectively. For the excavator applying this impact extrusion and milling device, the lengths of the boom and the arm of the excavator are designed according to actual requirements. The slewing drive device adopts a hydraulic motor or other structures capable of driving the guide rail frame 3 to rotate, and adjusts the orientation of the drilling assembly by driving the guide rail frame 3 to rotate, so as to break the under-excavated rock at different orientations.

[0035] The embodiments of the present invention have been described in detail above with reference to the accompanying drawings. However, the present invention is not limited thereto. Various changes can be made without departing from the spirit of the present invention within the scope of knowledge possessed by those skilled in the art to which the present invention pertains.

Claims

1. Impact extrusion and milling and digging device, characterized in that Comprising: Mounting base; Drilling assemblies, with multiple groups arranged side by side on a sliding frame (5), including a rock drill (6), a drill pipe (7) connected to the output end of the rock drill (6), a bursting device (9) having a passage for the drill pipe (7) to pass through, and a sliding seat for the bursting device (9) to slide; A propulsion mechanism provided on the mounting base and driving the drilling assembly forward.

2. The impact extrusion milling and excavation device according to claim 1, wherein, The bursting device (9) includes an integrally connected mounting frame portion (91) and a bursting head portion (92). The mounting frame portion (91) includes an integrally connected sliding plate portion (911) and a connecting plate portion (912). The bursting head portion (92) includes a squeezing cylinder portion (921) and two triangular knife portions (922) provided on the outer periphery of the squeezing cylinder portion (921). The front end of the squeezing cylinder portion (921) is distributed in a conical shape.

3. The impact extrusion and milling device according to claim 2, wherein The triangular knife portion (922) is a stepped structure with a gradually increasing slope, and the cross-sectional dimensions of the stepped structure gradually increase from front to back.

4. The impact extrusion and milling device according to claim 2, wherein The drill pipe (7) includes a hexagonal prism section (71), a round rod section (72), and a drill head section (74) connected in sequence, as well as a ring portion (73) provided on the round rod section (72). The round rod section (72) is an elastic structure. The hexagonal prism section (71) is connected to the output end of the rock drill (6) in a mating manner. The round rod section (72) passes through the passage on the bursting device (9), and the ring portion (73) is located behind the mounting frame portion (91).

5. The impact extrusion and milling device according to claim 2, characterized in that The sliding seat includes a first pressing plate (10), a second pressing plate (11) connected to the first pressing plate (10), and a plurality of self-lubricating copper blocks (12) provided on both sides of the sliding plate portion (911) and slidably connected to the first pressing plate (10) and the second pressing plate (11) respectively.

6. The impact extrusion milling and excavation device according to claim 5, characterized in that, The second pressing plate (11) has an activity groove (111) for the sliding plate portion (911) to move. The activity groove (111) is a U-shaped groove with an open bottom.

7. The impact extrusion milling and excavation device according to claim 5, characterized in that The propulsion mechanism includes a guide rail frame (3) provided on the mounting base, a sliding frame (5) slidably arranged on the guide rail frame (3), and a propulsion oil cylinder (4) with both ends connected to the guide rail frame (3) and the sliding frame (5) respectively. The rock drill (6) is provided on the sliding frame (5). The sliding seat is provided at the front end of the sliding frame (5). A bearing seat (8) is provided on the sliding frame (5), and a bearing connected to the drill pipe (7) is provided on the bearing seat (8).

8. The impact extrusion and milling device according to claim 7, wherein A rubber pad (13) is connected between the first pressing plate (10) and the sliding frame (5).

9. The impact extrusion and milling device according to claim 7, characterized in that The mounting base includes a rotating seat (2), a slewing drive device provided on the rotating seat (2) and driving the guide rail frame (3) to rotate, and an excavator mounting frame (1) provided on the rotating seat (2).

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