Impact crushing, milling and digging device

Abstract

The invention 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. Rock is broken through rotary drilling and extrusion drilling.

Description

Technical Field

[0001] The invention relates to the field of tunnel construction, in particular to an impact extrusion milling device. Background Art

[0002] In tunnel mechanical excavation construction, the boring machinery is limited to a certain extent by the size of the tunnel section. For small-section tunnels, large boring machinery may not be able to enter or the operating space is limited, and the repair and maintenance of the equipment are inconvenient; for ultra-large-section tunnels, existing mechanical technology may face challenges in excavation capacity and stability. Mechanical excavation of ultra-large-section tunnels requires higher power and stronger structural support, and the design and manufacturing of equipment is difficult, and mechanical failures and safety hazards are prone to occur during construction.

[0003] After the tunnel is blasted, there will still be some under-excavated rocks. The under-excavated rocks affect the next step of the primary lining process and need to be broken before it can be carried out. The existing equipment cannot accurately break the under-excavated parts. Summary of the invention

[0004] The purpose of the present invention is to solve the problems existing in the background technology and to propose an impact breaking and milling device for breaking rocks by rotating drilling and squeezing into the drilling hole.

[0005] The technical solution of the present invention is an impact crushing and milling device, which includes a mounting seat, a drilling assembly and a propulsion mechanism; a plurality of drilling assemblies 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 crusher having a channel for the drill rod to pass through, and a sliding seat for the crusher to slide; the propulsion mechanism is arranged on the mounting seat and drives the drilling assembly forward.

[0006] Preferably, the squeezer includes an integrally connected mounting frame portion and a squeeze head portion, the mounting frame portion includes an integrally connected sliding plate portion and a connecting plate portion, the squeeze head portion includes an extrusion barrel portion and two triangular knife portions arranged on the outer periphery of the extrusion barrel portion, and the front end of the extrusion barrel portion is distributed in a cone shape.

[0007] Preferably, the triangular blade portion is a three-section structure with a stepped shape and a gradually increasing slope, and the cross-sectional size of the three-section structure gradually increases from front to back.

[0008] Preferably, the drill rod includes a hexagonal prism section, a round rod section and a drill head section connected in sequence, and a circular ring section arranged on the round rod section. The round rod section is an elastic structure. The hexagonal prism section is connected to the output end of the rock drill. The round rod section passes through the channel on the squeezer, and the circular ring section is located on the rear side of the mounting frame.

[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 portion and respectively slidably connected to the first pressing plate and the second pressing plate.

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

[0011] Preferably, the propulsion mechanism includes a guide rail frame arranged on the mounting seat, a sliding frame slidably arranged on the guide rail frame, and a propulsion cylinder whose two ends are 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, the sliding frame is provided with a bearing seat, and the bearing seat is provided with a bearing connected to the drill rod.

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

[0013] Preferably, the mounting seat includes a rotating seat, a rotary 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 present invention has the following beneficial technical effects:

[0015] The present invention breaks rock by rotating the drill hole and squeezing the drill hole. The rock drill provides rotational power to the drill rod, the drill rod drills a hole in the underdug rock, and the squeezer squeezes the hole open while continuing to move, intermittently impacting the rock, causing the rock to crack, thereby completing the rock breaking process. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a structural schematic diagram of an embodiment of the present invention;

[0017] Figure 2 It is a schematic diagram of a local structure of an embodiment of the present invention;

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

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

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

[0021] Figure 6 This is a schematic diagram of the structure of an embodiment of the present invention installed in the bucket of an excavator for tunnel construction;

[0022] Figure 7 for Figure 6 A magnified view of the structure at center.

[0023] Figure numerals: 1. excavator mounting frame; 2. rotating seat; 3. guide frame; 4. thrust cylinder; 5. sliding frame; 6. rock drill; 7. drill rod; 71. hexagonal prism section; 72. round rod section; 73. annular section; 74. drill head; 8. bearing seat; 9. squeezer; 91. mounting frame section; 911. sliding plate section; 912. connecting plate section; 92. squeeze head; 921. squeeze-in barrel section; 922. triangular knife section; 10. first pressure plate; 11. second pressure plate; 111. movable groove; 12. self-lubricating copper block; 13. rubber pad. DETAILED DESCRIPTION

[0024] Embodiment 1

[0025] like Figure 1-Figure 7 As shown, the impact crushing and milling 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. This embodiment adopts five groups of drilling assemblies, and other numbers of groups of drilling assemblies may also be adopted. 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 squeezer 9 having a channel for the drill rod 7 to pass through, and a sliding seat for the squeezer 9 to slide. The drill rod 7 provides support for the squeezer 9. The rock drill 6 adopts 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 squeezer 9 includes an integrally connected mounting frame portion 91 and a squeeze head portion 92, wherein the mounting frame portion 91 includes an integrally connected sliding plate portion 911 and a connecting plate portion 912, and the squeeze head portion 92 includes an insertion barrel portion 921 and two triangular blade portions 922 arranged on the periphery of the insertion barrel portion 921, wherein the front end of the insertion barrel portion 921 is distributed in a cone shape, which is easy to be squeezed into the borehole, and then the rock is squeezed and broken at the borehole by the triangular blade portion 922. The triangular blade portion 922 is a three-section structure with a stepped shape and a gradually increasing slope, and the cross-sectional size of the three-section structure gradually increases from front to back, so that the impact force can be fully utilized and the squeezed crack can be gradually enlarged to split the rock. The two triangular blade portions 922 are horizontally symmetrically distributed, and can squeeze and crack the rock up and down.

[0027] The drill rod 7 includes a hexagonal column segment 71, a round rod segment 72 and a drill head 74 connected in sequence, and a circular ring portion 73 arranged on the circular rod segment 72, and the circular rod segment 72 is an elastic structure. The hexagonal column segment 71 is connected with the output end of the rock drill 6, and the circular rod segment 72 is limited by the squeezer 9 and is always in an elastic deformation state. The circular rod segment 72 passes through the channel on the squeezer 9, and the circular ring portion 73 is located at the rear side of the mounting frame portion 91. When the circular rod segment 72 is elastically deformed, the circular ring portion 73 intermittently pushes the squeezer 9, so that the squeezer 9 can intermittently impact the drill hole, thereby improving the cracking effect and efficiency of the rock.

[0028] like Figure 2 and Figure 5 As shown, 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 arranged on both sides of the sliding plate portion 911 and respectively connected to the first pressing plate 10 and the second pressing plate 11 in a sliding manner. The second pressing plate 11 has a movable groove 111 for the sliding plate portion 911 to move, and the movable groove 111 is a U-shaped groove with an open bottom. The sliding plate portion 911 has a certain movable distance between the first pressing plate 10 and the second pressing plate 11, and the friction during sliding is reduced by the self-lubricating copper blocks 12. The annular 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 forward, so that the drill rod 7 drills a borehole in the rock through the drill head 74, and enables the squeezer 9 to squeeze and crack the rock at the borehole.

[0030] This embodiment breaks the rock by rotating the drill hole and squeezing into the drill hole. The rock drill 6 provides rotational power for the drill rod 7, and the drill rod 7 drills a hole in the under-dug rock. As the drill rod 7 continues to go deeper, the squeezer 9 abuts against the drill hole and squeezes the drill hole open while continuing to move, so that the rock breaks. The squeezer 9 intermittently impacts the rock, effectively ensuring that the rock is squeezed and cracked at the drill hole.

[0031] Embodiment 2

[0032] like Figure 1-Figure 7 As shown, the impact crushing and milling device proposed in this embodiment is compared with the first embodiment. In this embodiment, the propulsion mechanism includes a guide frame 3 arranged on the mounting seat, a sliding frame 5 slidably arranged on the guide frame 3, and a propulsion oil cylinder 4 connected to the guide frame 3 and the sliding frame 5 at both ends. When the propulsion oil cylinder 4 is extended, the sliding frame 5 is driven to slide forward, and the drilling assembly is used to drill and crack 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, the sliding frame 5 is provided with a bearing seat 8, and the bearing seat 8 is provided with a bearing connected to the drill rod 7. The bearing can provide auxiliary support for the rotation of the drill rod 7, and the round rod segment 72 is limited 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 vibration impact between the first pressing plate 10 and the sliding frame 5 .

[0034] like Figure 1 As shown, the mounting seat includes a rotating seat 2, a rotary 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. 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 the excavator mounting frame 1 is reinstalled at the same position where the bucket and the excavator arm are connected, that is, the excavator mounting frame 1 is rotatably connected to the excavator arm at two locations respectively. For the excavator using this impact crushing and milling device, the length of the excavator arm and the arm are designed according to actual needs. The rotary drive device adopts a hydraulic motor or other structure that can drive the guide frame 3 to rotate, and adjusts the orientation of the drilling assembly by driving the guide frame 3 to rotate, so as to break the under-excavated rocks at different orientations.

[0035] The embodiments of the present invention are described in detail above with reference to the accompanying drawings, but the present invention is not limited thereto, and various changes can be made within the knowledge scope of technicians in the relevant technical field without departing from the purpose of the present invention.

Claims

1. Impact crushing and milling device, characterized in that: include: Mounting seat; A drilling assembly, which is arranged in multiple groups side by side on a sliding frame (5), including a rock drill (6), a drill rod (7) connected to the output end of the rock drill (6), a squeezer (9) having a channel for the drill rod (7) to pass through, and a sliding seat for the squeezer (9) to slide; A propulsion mechanism is arranged on the mounting seat and drives the drilling assembly forward.

2. The impact crushing and milling device according to claim 1, characterized in that: The squeezer (9) comprises an integrally connected mounting frame portion (91) and a squeeze head portion (92); the mounting frame portion (91) comprises an integrally connected sliding plate portion (911) and a connecting plate portion (912); the squeeze head portion (92) comprises an extrusion barrel portion (921) and two triangular blade portions (922) arranged on the outer periphery of the extrusion barrel portion (921); and the front end of the extrusion barrel portion (921) is distributed in a cone shape.

3. The impact crushing and milling device according to claim 2, characterized in that: The triangular blade portion (922) is a three-section structure with a stepped shape and a gradually increasing slope, and the cross-sectional dimensions of the three-section structure gradually increase from front to back.

4. The impact crushing and milling device according to claim 2, characterized in that: The drill rod (7) comprises a hexagonal column section (71), a round rod section (72) and a drill head (74) which are connected in sequence, and a circular ring section (73) arranged on the round rod section (72); the round rod section (72) is an elastic structure; the hexagonal column section (71) is cooperatively connected to the output end of the rock drill (6); the round rod section (72) passes through a channel on the squeezer (9); and the circular ring section (73) is located at the rear side of the mounting frame section (91).

5. The impact crushing and milling device according to claim 2, characterized in that: The sliding seat comprises 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) arranged on both sides of the sliding plate portion (911) and respectively slidably connected to the first pressing plate (10) and the second pressing plate (11).

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

7. The impact crushing and milling device according to claim 5, characterized in that: The propulsion mechanism comprises a guide rail frame (3) arranged on a mounting seat, a sliding frame (5) slidably arranged on the guide rail frame (3), and a propulsion oil cylinder (4) whose two ends are respectively connected to the guide rail frame (3) and the sliding frame (5); a rock drill (6) is arranged on the sliding frame (5); a 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 a drill rod (7) is arranged on the bearing seat (8).

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

9. The impact crushing and milling device according to claim 7, characterized in that: The mounting seat comprises a rotating seat (2), a rotary 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).

Images