Impact type crushing, milling and digging mechanism

Abstract

The utility model relates to the field of tunnel construction, in particular to an impact type crushing, milling and excavating mechanism. The device comprises a mounting and direction adjusting assembly, a guide rail frame, a sliding frame, a thrust cylinder, a drilling crushing mechanism and a height limiting assembly, the guide rail bracket is arranged at the top end of the mounting and orientation adjusting assembly; the sliding frame is slidably arranged on the guide rail frame; two ends of the thrust cylinder are rotationally connected with the guide rail frame and the sliding frame respectively; the drilling crushing mechanism comprises a crushing device and a plurality of drilling assemblies arranged side by side, each drilling assembly comprises a rock drill arranged on the sliding frame and a drill rod connected with the output end of the rock drill, and the crushing device is provided with penetrating channels allowing the multiple drill rods to penetrate through in a one-to-one correspondence mode; the height limiting assembly is provided with two rows of penetrating channels allowing a plurality of drill rods to correspondingly penetrate through, the rock drill output end, one row of penetrating channels and the other row of penetrating channels are sequentially distributed, and the heights of the penetrating channels are gradually increased. The drilling machine is miniaturized, and can efficiently excavate rocks in a mode of drilling and crushing at the same time.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of tunnel construction, in particular to a percussion type extrusion breaking milling and digging mechanism. BACKGROUND

[0002] In the tunnel mechanical excavation construction, the tunneling machine is limited by the tunnel section size to some extent, for the small section tunnel, the large tunneling machine cannot enter or the operation space is limited, leading to the underbreak rock in the tunnel construction process, the large machine has low breaking and excavation efficiency for the part rock, and even cannot carry out the breaking and excavation construction. CONTENT

[0003] The utility model aims at the problems in the background art, and provides a percussion type extrusion breaking milling and digging mechanism which is miniaturized and can efficiently excavate rock through the drilling and extrusion breaking mode.

[0004] The utility model discloses a percussion type extrusion breaking milling and digging mechanism, including installation and azimuth adjusting assembly, guide rail frame, sliding frame, push oil cylinder, drilling extrusion breaking mechanism and height limiting assembly, the guide rail frame sets up at the top of installation and azimuth adjusting assembly, the sliding frame slides and sets up on the guide rail frame, the push oil cylinder both ends are connected with the guide rail frame and sliding frame rotation respectively, the drilling extrusion breaking mechanism includes extrusion breaker and multiple groups of side -by -side setting drilling assembly, and the drilling assembly includes the rock drill that sets up on the sliding frame and the drill rod that is connected with the rock drill output end, the extrusion breaker and the drill rod are one to one, and the extrusion breaker has the passage channel that the drill rod passes through correspondingly, the height limiting assembly has two rows of through channels that a plurality of drill rods pass through correspondingly, and the rock drill output end, one row of through channels and another row of through channels are gradually raised in height and are distributed in proper order.

[0005] Preferably, the installation and azimuth adjusting assembly includes an excavator mounting frame, a rotating frame rotatably disposed on the excavator mounting frame, a rotating frame rotatably disposed on the rotating frame, a first rotating drive device disposed on the rotating frame and driving the rotating frame to rotate around the excavator mounting frame, and a second rotating drive device disposed on the rotating frame and driving the rotating frame to rotate around the rotating frame.

[0006] Preferably, the guide rail frame is slidably disposed on the top of the rotating frame, and the rotating frame is provided with a stroke compensation oil cylinder driving the guide rail frame to slide on the rotating frame.

[0007] Preferably, the drill rod includes a hexagonal prism segment, a round rod segment, and a drill bit connected in sequence, a circular ring is provided on the round rod segment, the round rod segment passes through the passage channel, the outer diameter of the circular ring is greater than the cross-sectional dimension of the passage channel, and the rock drill output end has an internal hexagonal groove matched with the hexagonal prism segment.

[0008] Preferably, the number of drill rods is at least two groups; the extrusion breaker comprises a mounting frame and a plurality of extrusion heads arranged side by side on the mounting frame, a through channel is arranged on the extrusion head, and the extrusion head corresponds to the drill rod one by one.

[0009] Preferably, the extrusion head comprises an extrusion cylinder portion and two three-edged knife portions respectively connected on both sides of the extrusion cylinder portion.

[0010] Preferably, the extrusion cylinder portion comprises a straight cylinder portion and a tapered cylinder portion, one end of the tapered cylinder portion is connected with the straight cylinder portion, the outer diameter of the tapered cylinder portion gradually decreases away from the straight cylinder portion, and the tapered cylinder portion is directed towards the drill bit.

[0011] Preferably, the three-edged knife portion is a three-section structure with a stepped shape and a slope gradually increasing away from the drill bit, and the cross-sectional size of the three sections gradually increases away from the drill bit.

[0012] Preferably, the height limiting assembly comprises a plurality of first fixing frames arranged in a row on the sliding frame and a plurality of second fixing frames arranged in a row on the guide rail frame, the first fixing frames and the second fixing frames are correspondingly distributed and each have a through channel, the height of the through channel on the first fixing frame is lower than the height of the through channel on the second fixing frame, and each drill rod sequentially passes through the through channel on the first fixing frame and the through channel on the second fixing frame away from the guide rail frame.

[0013] Compared with the prior art, the utility model has the following beneficial technical effects:

[0014] The utility model discloses miniaturization, can be integrated and installed to the existing excavator, and tunnel rock breaking construction is convenient. During construction, the rock can be efficiently excavated by the drilling and extruding breaking mode. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 It is the structure schematic diagram of the upper perspective of the embodiment of the utility model;

[0016] Figure 2 It is the structure schematic diagram of the lower perspective of the embodiment of the utility model;

[0017] Figure 3 It is the structure schematic diagram of the drill rod;

[0018] Figure 4 It is the structure schematic diagram of the extrusion breaker;

[0019] Figure 5 It is the partial structure sectional view of the extrusion breaker.

[0020] Reference numerals: 1. Excavator mounting frame; 2. Rotating frame; 3. Rotating frame; 4. Stroke compensation cylinder; 5. Guide rail frame; 6. Sliding frame; 7. Rock drill; 8. Drill rod; 81. Hexagonal prism section; 82. Round rod section; 83. Drill bit; 84. Ring; 9. First fixed frame; 10. Second fixed frame; 11. Crusher; 111. Mounting frame; 112. Crusher head; 1121. Conical section; 1122. Triangular blade section; 12. Propulsion cylinder. Detailed Implementation

[0021] Example 1

[0022] like Figures 1-5 As shown in the figure, the impact crushing and milling mechanism proposed in this embodiment includes an installation and orientation adjustment assembly, a guide rail frame 5, a sliding frame 6, a propulsion cylinder 12, a drilling and crushing mechanism, and a height limiting assembly.

[0023] The guide rail frame 5 is mounted on top of the installation and orientation adjustment assembly. The sliding frame 6 is slidably mounted on the guide rail frame 5. The two ends of the propulsion cylinder 12 are rotatably connected to the guide rail frame 5 and the sliding frame 6, respectively. The propulsion cylinder 12 can drive the sliding frame 6 to slide on the guide rail frame 5 through its extension and retraction.

[0024] The drilling and crushing mechanism includes a crusher 11 and multiple sets of drilling assemblies arranged side by side. Each drilling assembly includes a rock drill 7 mounted on a sliding frame 6 and drill rods 8 connected to the output end of the rock drill 7. The crusher 11 and drill rods 8 are paired one-to-one, with the crusher 11 having a passageway through which the drill rods 8 pass. The drill rod 8 includes a hexagonal prism section 81, a round rod section 82, and a drill bit 83 connected in sequence. The drill bit 83 can drill closely against the tunnel cross-section. A ring 84 is provided on the round rod section 82. The round rod section 82 passes through the passageway, and the outer diameter of the ring 84 is larger than the cross-sectional size of the passageway. The ring 84 and the drill bit 83 are located on opposite sides of the passageway. The output end of the rock drill 7 has an internal hexagonal groove that mates with the hexagonal prism section 81 for easy alignment and secure installation. The rock drill 7 is either a pneumatic or hydraulic rock drill, capable of driving the drill rod 8 to rotate. When the sliding frame 6 advances, the drill rod 8 advances, drilling holes in the rock through the drill bit 83. The ring 84 pushes the crusher 11 forward, and the crusher 11 crushes the rock at the borehole.

[0025] It should be noted that if the number of drill rods 8 is one, the breaking device 11 only includes a breaking head 112; if the number of drill rods 8 is at least two groups, the breaking device 11 includes a mounting frame 111 and a plurality of breaking heads 112 arranged side by side on the mounting frame 111. The breaking head 112 corresponds to the drill rod 8 one by one; the plurality of breaking heads 112 are uniformly arranged and mounted on the mounting frame 111, that is, the mounting frame 111 and the plurality of breaking heads 112 form an integrated structure to constitute a multi-breaking device structure. Specifically, in the embodiment, the breaking head 112, the drill rod 8 and the rock drill 7 are all five, and the specific number can be increased or decreased according to the construction demand. The through channel is located on the breaking head 112, and the breaking head 112 corresponds to the drill rod 8 one by one, and each drill rod 8 passes through a breaking head 112.

[0026] As shown in Figure 4 and Figure 5 , the breaking head 112 includes a breaking cylinder part and two three-edged blade parts 1122 connected on both sides of the breaking cylinder part respectively. The breaking cylinder part can be inserted into the drill hole drilled by the drill rod 8 in alignment, and the three-edged blade parts 1122 can be used to impact the drill hole to break the rock. Among them, the breaking cylinder part includes a straight cylinder part and a tapered cylinder part 1121, one end of the tapered cylinder part 1121 is connected with the straight cylinder part, the outer diameter of the tapered cylinder part 1121 gradually decreases away from the straight cylinder part, and the tapered cylinder part 1121 faces the drill bit 83. The size of the outer end of the tapered cylinder part 1121 is smaller than the size of the drill bit 83, and the tapered cylinder part 1121 can more smoothly extend into the drill hole. The three-edged blade part 1122 is a three-section structure with stepped shape and gradually increasing slope away from the drill bit 83, and the cross-sectional size of the three sections gradually increases away from the drill bit 83. When the breaking head 112 is impacted by the circular ring 84 on the round rod segment 82, the tapered cylinder part 1121 can be used to extrude into the drill hole, and the two-sided three-edged blade part 1122 can be used to extrude and crack the rock. The three-edged blade part 1122 with stepped shape and gradually increasing slope three-section structure can gradually enlarge the crack at the drill hole to break the rock, so that the rock is split up and down.

[0027] The height limiting assembly has two rows of through channels for corresponding passing of the plurality of drill rods 8, the output end of the rock drill 7, one row of through channels and the other row of through channels are sequentially distributed and gradually raised in height, so as to ensure that the rock drill 7 is not interfered by the tunnel arc surface during drilling, and the smooth progress of the whole operation process is ensured. Specifically, the height limiting assembly comprises a plurality of first fixing frames 9 arranged in rows on the sliding frame 6 and a plurality of second fixing frames 10 arranged in rows on the guide rail frame 5, the first fixing frames 9 and the second fixing frames 10 are correspondingly distributed and each have a through channel, the through channel on the first fixing frame 9 is lower in height than the through channel on the second fixing frame 10, and each drill rod 8 sequentially passes through the through channel on the first fixing frame 9 and the through channel on the second fixing frame 10 in the direction away from the guide rail frame 5. The drill rod 8 is of a resilient structure and is directionally bent to a certain radian under the joint action of the first fixing frame 9 and the second fixing frame 10, and in use, the drill rod 8 is always in an elastically deformed state.

[0028] The embodiment is small in size, low in cost, capable of being integrated and installed on an existing excavator, convenient for tunnel rock breaking construction, flexible in use, strong in adaptability, applicable to large, medium and small tunnels, simple in structure and convenient for disassembly and assembly. During construction, the rock can be efficiently excavated and constructed by the side drilling and side breaking mode. A plurality of drill rods 8 are used to drill a row of drill holes in the rock, and with the continuous drilling of the drill rod 8, the circular ring 84 on the drill rod 8 is used to push the breaking device 11 to impact forward, the tapered cylinder portion 1121 is extruded into the drill hole, and the three-edged knife portion 1122 is used to extrude and break the rock, so as to realize the efficient rock breaking construction of the side drilling and side breaking mode.

[0029] Embodiment two

[0030] As shown in Figures 1-5 , compared with embodiment one, in the impact type breaking and milling excavator proposed in the embodiment, the installation and orientation adjusting assembly comprises an excavator mounting frame 1, a rotating frame 2 rotatably arranged on the excavator mounting frame 1, a rotating frame 3 rotatably arranged on the rotating frame 2, a first rotating driving device arranged on the rotating frame 2 and driving the rotating frame 2 to rotate around the excavator mounting frame 1, and a second rotating driving device arranged on the rotating frame 2 and driving the rotating frame 3 to rotate around the rotating frame 2. The first rotating driving device and the second rotating driving device can adopt a hydraulic motor. The excavator mounting frame 1 is installed at the end of the excavator mechanical arm, which is originally used for installing the excavator bucket, and after the excavator bucket is removed, the excavator mounting frame 1 can be installed.

[0031] The guide rail frame 5 is slidingly arranged on the top of the rotating frame 3, and the rotating frame 3 is provided with a stroke compensation oil cylinder 4 for driving the guide rail frame 5 to slide on the rotating frame 3. If the rock breaking construction on the under-excavated rock cannot be performed by the drilling and extruding breaking mechanism through the driving of the propelling oil cylinder 12, the stroke compensation oil cylinder 4 is started to drive the guide rail frame 5 to advance, so as to increase the drilling and extruding breaking stroke of the drilling and extruding breaking mechanism, and ensure the rock breaking effect.

[0032] In the embodiment, the impact extruding and breaking milling mechanism can be installed on the mechanical arm of the existing excavator through the installation and orientation adjusting assembly, and the orientation of the rotating frame 3 can be adjusted to adjust the orientation of the drilling and extruding breaking mechanism, so as to facilitate the drilling and extruding breaking construction on the target under-excavated rock, and the drilling and extruding breaking stroke of the drilling and extruding breaking mechanism can be increased through the stroke compensation oil cylinder 4.

[0033] The embodiments of the utility model are described in detail above in combination with the drawings, but the utility model is not limited to this, and various changes can be made within the knowledge range possessed by the person skilled in the art without departing from the purpose of the utility model.

Claims

1. A percussion-type, extrusion-breaking, dragline excavating apparatus characterized by, The utility model relates to a drilling and breaking device for a tunneling machine, comprising: a mounting and orientation adjusting assembly; a guide rail frame (5) arranged at the top end of the mounting and orientation adjusting assembly; a sliding frame (6) slidingly arranged on the guide rail frame (5); a push oil cylinder (12) rotationally connected at both ends to the guide rail frame (5) and the sliding frame (6), respectively; a drilling and breaking mechanism comprising a plurality of breaking devices (11) and a plurality of drilling assemblies arranged side by side, wherein the drilling assembly comprises a rock drill (7) arranged on the sliding frame (6) and a drill rod (8) connected to the output end of the rock drill (7); the breaking device (11) and the drill rod (8) are in one-to-one correspondence, the breaking device (11) has a passing channel for the corresponding drill rod (8) to pass through; a height limiting assembly having two rows of through channels for the corresponding drill rods (8) to pass through, wherein the output end of the rock drill (7), one row of through channels and the other row of through channels are sequentially arranged and gradually increase in height.

2. A percussion-type extrusion-breaking mill excavating structure according to claim 1, characterized in that, The mounting and orientation adjusting assembly comprises an excavator mounting frame (1), a rotating frame (2) rotationally arranged on the excavator mounting frame (1), a rotating frame (3) rotationally arranged on the rotating frame (2), a first rotation driving device arranged on the rotating frame (2) and driving the rotating frame (2) to rotate around the excavator mounting frame (1), and a second rotation driving device arranged on the rotating frame (2) and driving the rotating frame (3) to rotate around the rotating frame (2).

3. A drag-to-cut mill excavating structure according to claim 2, wherein, The guide rail frame (5) is slidingly arranged on the top of the rotating frame (3), and the rotating frame (3) is provided with a stroke compensation oil cylinder (4) driving the guide rail frame (5) to slide on the rotating frame (3).

4. A percussion-type extrusion-cutting boring machine according to claim 1, characterized in that, The drill rod (8) comprises a hexagonal prism segment (81), a round rod segment (82) and a drill bit (83) connected in sequence, the round rod segment (82) is provided with a circular ring (84), the round rod segment (82) passes through the passing channel, the outer diameter of the circular ring (84) is larger than the cross-sectional dimension of the passing channel, and the output end of the rock drill (7) has an internal hexagonal groove matched with the hexagonal prism segment (81).

5. A drag-to-drag extrusion-cutting boring structure according to claim 4, wherein The number of drill rods (8) is at least two groups; the breaking device (11) comprises a mounting frame (111) and a plurality of breaking heads (112) arranged side by side on the mounting frame (111), the passing channel is located on the breaking head (112), and the breaking head (112) is in one-to-one correspondence with the drill rod (8).

6. A drag-to-drag extrusion-cutting tunneling structure according to claim 5, wherein The breaking head (112) comprises a breaking cylinder portion and two three-pronged knife portions (1122) connected to both sides of the breaking cylinder portion, respectively.

7. A percussion-type extrusion-cutting boring machine according to claim 6, characterized in that The breaking cylinder portion comprises a straight cylinder portion and a tapered cylinder portion (1121), one end of the tapered cylinder portion (1121) is connected to the straight cylinder portion, the outer diameter of the tapered cylinder portion (1121) gradually decreases in the direction away from the straight cylinder portion, and the tapered cylinder portion (1121) faces the drill bit (83).

8. A drag-to-drag extrusion-cutting boring structure according to claim 7, wherein The three-pronged knife portion (1122) is a three-section structure with a stepped shape and a slope gradually increasing in the direction away from the drill bit (83), and the cross-sectional dimension of the three sections gradually increases in the direction away from the drill bit (83).

9. A drag-to-ground excavating structure according to claim 1, wherein The height limiting assembly comprises a plurality of first fixing frames (9) arranged in rows on the sliding frame (6) and a plurality of second fixing frames (10) arranged in rows on the guide rail frame (5), the first fixing frames (9) and the second fixing frames (10) are correspondingly distributed and each have a through channel, the height of the through channel on the first fixing frame (9) is lower than the height of the through channel on the second fixing frame (10), and each drill rod (8) sequentially passes through the through channels on the first fixing frames (9) and the second fixing frames (10) in a direction away from the guide rail frame (5).

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