Horizontal shaft digging and anchoring all-in-one machine

Abstract

The utility model aims at disclosing a transverse shaft digging and anchoring all-in-one machine, which relates to the technical field of coal mine tunnel drilling and comprises a chassis, a transverse shaft cutting assembly, a spraying assembly, a dust removal assembly, a temporary support assembly, an anchoring and protecting assembly and a transportation assembly, the transverse shaft cutting assembly comprises a cutting carriage, a sliding column, a large cutting arm, a pitching oil cylinder and a cutting roller; the dust removal assembly is arranged above the cutting large arm, the temporary supporting assembly is fixedly connected with the cutting assembly, a first lifting oil cylinder and a second lifting oil cylinder are arranged below the temporary supporting assembly, and the first lifting oil cylinder and the second lifting oil cylinder are arranged on the two sides of the cutting large arm; the anchor protection assembly comprises a top anchor protection assembly and a side anchor protection assembly, and has the beneficial effects that the transverse shaft cutting assembly, the transportation assembly and the anchor protection assembly do not affect one another, and the digging and anchoring efficiency is high; the first lifting oil cylinder and the second lifting oil cylinder drive the temporary supporting assembly and the dust removal assembly to pitch with the hinge point as the center, and the design is compact.

Description

Technical Field

[0001] The utility model relates to the technical field of coal mine tunnel digging and anchoring, in particular to a horizontal axis digging and anchoring integrated machine. Background Art

[0002] The integrated excavation and anchoring machine is divided into longitudinal excavation mode and transverse excavation mode. The longitudinal excavation mode is to advance through the longitudinal cutting head, stop excavation and carry out temporary support after advancing a certain distance, and continue excavation after the support is in place to ensure the safety of the tunnel; the transverse excavation mode can achieve excavation and anchoring at the same time. How to achieve the balance between excavation and anchoring is one of the technical problems that need to be solved. In addition, how to achieve dust removal while excavating and anchoring is another technical problem that needs to be solved.

[0003] In view of this, there is an urgent need to develop a horizontal axis drilling and anchoring machine to overcome the above-mentioned defects. Summary of the invention

[0004] The utility model aims to disclose a horizontal axis drilling and anchoring integrated machine.

[0005] In order to achieve the above-mentioned invention object, the utility model provides a horizontal axis excavation and anchoring integrated machine, including a chassis, a horizontal axis cutting assembly, a spray assembly, a dust removal assembly, a temporary support assembly, an anchoring assembly and a transport assembly;

[0006] The horizontal axis cutting assembly includes a cutting slide, a slide column, a cutting boom, a pitching oil cylinder and a cutting drum. The cutting slide slides forward and backward along the slide column, and the pitching oil cylinder drives the cutting drum to pitch with the cutting slide as a fulcrum and through the cutting boom.

[0007] The spray assembly is respectively arranged on both sides of the cutting arm, and the spray head of the spray assembly faces the cutting drum;

[0008] The dust removal assembly is arranged above the cutting arm, the temporary support assembly is fixedly connected to the cutting assembly, a first lifting cylinder and a second lifting cylinder are arranged below the temporary support assembly, the first lifting cylinder and the second lifting cylinder are arranged on both sides of the cutting arm, a tilting rod and a support plate are arranged at the tail of the dust removal assembly, the support plate is installed on the chassis, and the tilting rod and the support plate are hinged;

[0009] The anchor guard assembly includes a top anchor guard assembly and a side anchor guard assembly;

[0010] The transport assembly passes through the cutting carriage and extends to below the transverse-axis cutting assembly.

[0011] Preferably, slide bars are respectively arranged on both sides of the transport component, and a slide groove is arranged at the tail of the cutting slide, and the slide bar moves along the slide groove.

[0012] Preferably, the outer diameter of the slide bar is smaller than the height of the slide groove;

[0013] The third lifting cylinder drives the transport assembly to rise and fall with the chassis as a fulcrum;

[0014] The third lifting cylinder is arranged at the rear of the chassis.

[0015] Preferably, a shovel assembly is arranged at the end of the transport assembly, and a fourth lifting cylinder is arranged between the shovel assembly and the transport assembly.

[0016] Preferably, loading star wheels are respectively provided on both sides of the shovel plate assembly.

[0017] Preferably, the cutting drum comprises a reducer, an intermediate cutting drum, and a first telescopic cutting drum and a second telescopic cutting drum respectively arranged on both sides of the intermediate cutting drum.

[0018] Preferably, the first telescopic cutting drum comprises a first outer cylinder, a first inner cylinder and a first telescopic oil cylinder, and the first telescopic oil cylinder drives the first inner cylinder to telescope;

[0019] The second telescopic cutting drum comprises a second outer cylinder, a second inner cylinder and a second telescopic oil cylinder, and the second telescopic oil cylinder drives the second inner cylinder to telescope.

[0020] Preferably, the top anchor assembly comprises a first top anchor assembly and a second top anchor assembly, and the first top anchor assembly and the second top anchor assembly are symmetrically arranged on both sides of the cutting boom.

[0021] Preferably, the first top anchor assembly comprises a transverse slide rail, a transverse oil cylinder, a slide seat, a drill arm base, a first swing angle oil cylinder, a second swing angle oil cylinder, a third swing angle oil cylinder, a first drill arm and a second drill arm;

[0022] The transverse oil cylinder drives the slide seat to slide along the transverse slide rail with the transverse slide rail as a fulcrum;

[0023] The first swing angle oil cylinder drives the first drill arm to swing left and right with the drill arm base as a fulcrum, and the second swing angle oil cylinder drives the second drill arm to swing left and right with the drill arm base as a fulcrum;

[0024] The third swing angle oil cylinder drives the drill arm base to swing forward and backward with the slide seat as a fulcrum;

[0025] The first drill boom and the second drill boom are adjacent.

[0026] Preferably, the auxiliary anchor assembly comprises a first auxiliary anchor assembly and a second auxiliary anchor assembly, and the first auxiliary anchor assembly and the second auxiliary anchor assembly are symmetrically arranged on both sides of the dust removal assembly;

[0027] The first anchor assembly includes a longitudinal slide rail, a longitudinal slide table, a longitudinal oil cylinder, a vertical slide, a vertical slide rail, a vertical oil cylinder, a slewing assembly and a third drill arm;

[0028] The longitudinal oil cylinder drives the longitudinal slide table to slide with the longitudinal slide rail as a fulcrum;

[0029] The vertical slide rail is installed on the longitudinal slide platform, the vertical oil cylinder drives the vertical slide to rise and fall with the vertical slide rail as a fulcrum, and the rotary assembly is installed on the top of the vertical slide;

[0030] The slewing assembly drives the third drill arm to rotate.

[0031] Compared with the prior art, the beneficial effects of the utility model are:

[0032] Through the utility model, on the one hand, the transverse axis cutting assembly, the transport assembly and the anchor assembly do not affect each other, and the coal cut by the transverse axis cutting assembly through the pitching action directly falls into the transport assembly. While cutting, the anchor assembly is at the top and side of the anchoring tunnel, realizing the synchronization of excavation progress and anchoring, and the excavation efficiency is high; on the other hand, the dust removal assembly and the temporary support assembly are fixedly connected as a whole, and the first lifting cylinder and the second lifting cylinder drive the temporary support assembly and the dust removal assembly to pitch with the hinge point between the tilting rod and the support plate as the center, realizing a compact design, and being able to provide temporary support for the tunnel, which is safer and more reliable. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] Figure 1 It is a three-dimensional structural schematic diagram of the horizontal axis drilling and anchoring machine of the utility model.

[0034] Figure 2 It is a three-dimensional structural schematic diagram of the horizontal axis drilling and anchoring machine of the utility model.

[0035] Figure 3 It is a sectional schematic diagram of a cutting drum of the utility model.

[0036] Figure 4 It is a schematic diagram of the three-dimensional structure of the first top anchor assembly of the utility model.

[0037] Figure 5 It is a schematic diagram of the three-dimensional structure of the first top anchor assembly of the utility model.

[0038] Figure 6 It is a three-dimensional structural schematic diagram of the first anchor assembly of the utility model.

[0039] Figure 7 It is a three-dimensional structural schematic diagram of the horizontal axis cutting assembly of the utility model.

[0040] Figure 8It is a three-dimensional structural schematic diagram of the dust removal component and temporary support component of the utility model.

[0041] Fig. 9 It is a three-dimensional structural schematic diagram of the fourth lifting cylinder of the utility model.

[0042] Fig.10 It is a three-dimensional structural schematic diagram of the transverse axis cutting assembly and the transport assembly of the utility model.

[0043] Fig.11 It is a three-dimensional structural schematic diagram of the transverse axis cutting assembly and the transport assembly of the utility model.

[0044] Among them, 1. chassis; 2. transverse axis cutting assembly; 21. cutting slide; 211. slide; 22. slide column; 23. cutting boom; 24. pitch cylinder; 25. cutting drum; 251. reducer; 252. intermediate cutting drum; 253. first telescopic cutting drum; 2531. first outer cylinder; 2532. first inner cylinder; 2533. first telescopic cylinder; 254. second telescopic cutting drum; 2541. second outer cylinder; 2542. second inner cylinder; 2543. second telescopic cylinder; 3. spray assembly; 31. nozzle; 4. dust removal assembly; 41. tilt rod; 42. support plate; 43. hinge point; 5. temporary support assembly; 51. first lifting cylinder; 52. second lifting cylinder; 6. anchor assembly ;61. First top anchor assembly;611. Horizontal slide rail;612. Horizontal cylinder;613. Slide seat;614. Drill arm base;615. First swing angle cylinder;616. Second swing angle cylinder;617. Third swing angle cylinder;618. First drill arm;619. Second drill arm;62. Second top anchor assembly;63. First auxiliary anchor assembly;631. Longitudinal slide rail;632. Longitudinal slide;633. Longitudinal cylinder;634. Vertical slide;635. Vertical slide rail;636. Vertical cylinder;637. Rotation assembly;638. Third drill arm;64. Second auxiliary anchor assembly;7. Transport assembly;71. Slide rod;72. Third lifting cylinder;73. Shovel board assembly;74. Fourth lifting cylinder;75. ​​Loading star wheel. DETAILED DESCRIPTION

[0045] The present invention is described in detail below in conjunction with the various embodiments shown in the accompanying drawings, but it should be noted that these embodiments are not limitations of the present invention, and any equivalent transformations or substitutions in functions, methods, or structures made by ordinary technicians in the field based on these embodiments are all within the scope of protection of the present invention.

[0046] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like indicating directions or positional relationships are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as a limitation on the present invention.

[0047] The specific implementation process of the present utility model is described below through multiple embodiments.

[0048] Example 1

[0049] See also Figures 1 to 11 This embodiment discloses a specific implementation method of a horizontal axis drilling and anchoring machine (hereinafter referred to as "integrated machine").

[0050] Horizontal axis anchor drilling machine, see Figures 1 to 11, including a chassis 1, a transverse axis cutting assembly 2, a spray assembly 3, a dust removal assembly 4, a temporary support assembly 5, an anchor assembly 6 and a transport assembly 7; the transverse axis cutting assembly 2 includes a cutting slide 21, a slide column 22, a cutting arm 23, a pitching cylinder 24 and a cutting drum 25, the cutting slide 21 slides forward and backward along the slide column 22, so that the cutting drum 25 can achieve footage without moving the vehicle, the slide column 22 is installed on the chassis 1, the pitching cylinder 24 uses the cutting slide 21 as a fulcrum and drives the cutting drum 25 to pitch through the cutting arm 23, and the cutting drum 25 pitches and advances while pitching; the spray assemblies 3 are respectively arranged on both sides of the cutting arm 23, and the nozzles 31 of the spray assemblies 3 face the cutting drum 25 to reduce the amount of dust during cutting; the dust removal assembly 4 is arranged above the cutting arm 23, and the temporary support The protection assembly 5 and the cutting assembly 2 are fixedly connected to form a whole. The first lifting cylinder 51 and the second lifting cylinder 52 are arranged below the temporary support assembly 5. The first lifting cylinder 51 and the second lifting cylinder 52 are arranged on both sides of the cutting arm 23. The tail of the dust removal assembly 4 is provided with a tilting rod 41 and a support plate 42. The support plate 42 is installed on the chassis 1. The tilting rod 41 and the support plate 42 are hinged. When the first lifting cylinder 51 and the second lifting cylinder 52 are lifted, the temporary support assembly 5 and the cutting assembly 2 are driven to swing synchronously with the hinge point of the tilting rod 41 and the support plate 42 as the center, so that the temporary support assembly 5 temporarily supports the top of the tunnel to ensure the safety of the tunnel; the anchor protection assembly 6 includes a top anchor protection assembly and a side anchor protection assembly; the transportation assembly 7 passes through the cutting slide 21 and extends to the bottom of the horizontal axis cutting assembly 2.

[0051] Specifically, see Figures 1 to 11 In this embodiment, the transverse axis cutting assembly 2, the transport assembly 7 and the anchor assembly 6 do not affect each other. The coal cut by the transverse axis cutting assembly 2 through the pitching action directly falls into the transport assembly 7. While cutting, the anchor assembly 6 is at the top and side of the anchoring tunnel, realizing the synchronization of excavation footage and anchoring, and the excavation efficiency is high; the spray assembly 3 and the dust removal assembly 4 serve as dust reduction and dust removal assemblies, and the dust removal assembly 4 and the temporary support assembly 5 are fixedly connected as a whole. The first lifting cylinder 51 and the second lifting cylinder 52 drive the temporary support assembly 5 and the dust removal assembly 4 to pitch with the hinge point 43 between the tilting rod 41 and the support plate 42 as the center, realizing a compact design, and being able to provide temporary support for the tunnel, which is safer and more reliable.

[0052] See also Figures 7 to 11In order to ensure the stability of the transverse axis cutting assembly 2 during cutting, slide bars 71 are respectively provided on both sides of the transport assembly 7, and a slide groove 211 is provided at the tail end of the cutting slide 21, and the slide bar 71 moves along the slide groove 211. During the sliding process of the cutting slide 21 forward and backward along the slide column 22, due to the cooperation of the slide bar 71 and the slide groove 211, the longitudinal movement distance of the cutting slide 21 is limited and its displacement in the height direction is limited, so that the cutting drum 25 can achieve stable cutting; the outer diameter of the slide bar 71 is smaller than the height of the slide groove 211, that is, the slide bar 71 has a small degree of freedom in the height direction, and the third lifting cylinder 72 is provided at the tail end of the chassis 1. The third lifting cylinder 72 drives the transport assembly 7 to rise and fall with the chassis 1 as the fulcrum. Due to the restriction of the slide groove 211 on the height direction of the slide bar 71, the angle between the transport assembly 7 and the horizontal plane can only be fine-tuned. A shovel board assembly 73 is arranged at the end of the transport assembly 7, and a fourth lifting cylinder 74 is arranged between the shovel board assembly 73 and the transport assembly 7. The fourth lifting cylinder 74 drives the shovel board assembly 73 to rise and fall. When the vehicle is moved, the shovel board assembly 73 is lifted, and when the vehicle is parked and excavated, the shovel board assembly 73 falls to the ground, and the coal cut by the transverse axis cutting assembly 2 falls directly into the shovel board assembly 73. Loading star wheels 75 are arranged on both sides of the shovel board assembly 73, respectively. The loading star wheels 75 transfer the coal to the transport assembly 7 by rotating, thereby realizing continuous transportation of the coal to the outside.

[0053] In order to adapt the cutting drum 25 to tunnel excavation of different widths, see Figure 3 The cutting drum 25 includes a speed reducer 251, an intermediate cutting drum 252, and a first telescopic cutting drum 253 and a second telescopic cutting drum 254 respectively arranged on both sides of the intermediate cutting drum 252. The surfaces of the intermediate cutting drum 252, the first telescopic cutting drum 253 and the second telescopic cutting drum 254 are all provided with cutting heads. The speed reducer 251 drives the intermediate cutting drum 252, the first telescopic cutting drum 253 and the second telescopic cutting drum 254 to rotate; the first telescopic cutting drum 253 includes a first The outer cylinder 2531, the first inner cylinder 2532 and the first telescopic cylinder 2533, the first telescopic cylinder 2533 drives the first inner cylinder 2532 to be telescopic; the second telescopic cutting drum 254 includes a second outer cylinder 2541, a second inner cylinder 2542 and a second telescopic cylinder 2543, the second telescopic cylinder 2543 drives the second inner cylinder 2542 to be telescopic, and through the telescopic movement of the first inner cylinder 2532 and the second inner cylinder 2542, the width of the cutting drum 25 can be effectively increased, so that it can adapt to different lanes.

[0054] See also Figure 4 and Figure 5, the top anchor assembly includes a first top anchor assembly 61 and a second top anchor assembly 62, and the first top anchor assembly 61 and the second top anchor assembly 62 are symmetrically arranged on both sides of the cutting boom 23; the structure and working principle of the first top anchor assembly 61 and the second top anchor assembly 62 are the same, and the first top anchor assembly 61 is used as an example for explanation below, the first top anchor assembly 61 includes a transverse slide rail 611, a transverse oil cylinder 612, a slide seat 613, a drill arm base 614, a first swing angle oil cylinder 615, a second swing angle oil cylinder 616, a third swing angle oil cylinder 617, a first drill arm 618 and a second drill arm 619, the first drill arm 618 and the second drill arm 619 are adjacent, and the first drill arm 618 and the second drill arm 619; the transverse oil cylinder 612 drives the slide seat 613 to slide along the transverse slide rail 611 with the transverse slide rail 611 as a fulcrum; the first swing angle oil cylinder 615 drives the slide seat 613 to slide along the transverse slide rail 611 with the transverse oil cylinder 615 as a fulcrum The drill arm base 614 is used as a fulcrum to drive the first drill arm 618 to swing left and right, and the second swing angle cylinder 616 drives the second drill arm 619 to swing left and right with the drill arm base 614 as a fulcrum; the third swing angle cylinder 617 drives the drill arm base 614 to swing back and forth with the slide 613 as a fulcrum. Since the first drill arm 618 and the second drill arm 619 are installed on the drill arm base 614, the third swing angle cylinder 617 can drive the first drill arm 618 and the second drill arm 619; the first drill arm 618 and the second drill arm 619 are driven to move horizontally synchronously through the transverse cylinder 612, so as to hit anchors at different positions on the top, and the first swing angle cylinder 615, the second swing angle cylinder 616, and the third swing angle cylinder 617 can fine-tune the anchoring angles of the first drill arm 618 and the second drill arm 619 to improve the adaptability of hitting top anchors.

[0055] See also Figure 6The auxiliary anchor assembly includes a first auxiliary anchor assembly 63 and a second auxiliary anchor assembly 64, and the first auxiliary anchor assembly 63 and the second auxiliary anchor assembly 64 are symmetrically arranged on both sides of the dust removal assembly 4; the first auxiliary anchor assembly 63 and the second auxiliary anchor assembly 64 have the same structure and working principle, and the first auxiliary anchor assembly 63 is used as an example for explanation below. The first auxiliary anchor assembly 63 includes a longitudinal slide rail 631, a longitudinal slide table 632, a longitudinal oil cylinder 633, a vertical slide 634, a vertical slide rail 635, a vertical oil cylinder 636, a rotary assembly 637 and a third drill arm 638; the longitudinal oil cylinder 633 drives the longitudinal slide table 632 to slide with the longitudinal slide rail 631 as a fulcrum, and the longitudinal oil cylinder 636 drives the longitudinal slide table 632 to slide. The cylinder 633 drives the third drill arm 638 to move longitudinally so as to drive anchors at different longitudinal positions of the tunnel side; the vertical slide rail 635 is installed on the longitudinal slide 632, and the vertical oil cylinder 636 drives the vertical slide 634 to rise and fall with the vertical slide rail 635 as a fulcrum, and the slewing assembly 637 is installed on the top of the vertical slide 634; the slewing assembly 637 drives the third drill arm 638 to rotate, and the vertical oil cylinder 636 drives the third drill arm 638 to rise and fall so as to drive anchors at different heights of the tunnel side. The third drill arm 638 is placed in a vertical state or a horizontal state through the slewing assembly 637. The vertical state is a retracted state, and the horizontal state is a state for driving anchors on the side.

Claims

1. Horizontal axis drilling and anchoring machine, characterized in that: It includes chassis, transverse axis cutting assembly, spray assembly, dust removal assembly, temporary support assembly, anchor assembly and transportation assembly; The horizontal axis cutting assembly includes a cutting slide, a slide column, a cutting boom, a pitching oil cylinder and a cutting drum. The cutting slide slides forward and backward along the slide column, and the pitching oil cylinder drives the cutting drum to pitch with the cutting slide as a fulcrum and through the cutting boom. The spray assembly is respectively arranged on both sides of the cutting arm, and the spray head of the spray assembly faces the cutting drum; The dust removal assembly is arranged above the cutting arm, the temporary support assembly is fixedly connected to the cutting assembly, a first lifting cylinder and a second lifting cylinder are arranged below the temporary support assembly, the first lifting cylinder and the second lifting cylinder are arranged on both sides of the cutting arm, a tilting rod and a support plate are arranged at the tail of the dust removal assembly, the support plate is installed on the chassis, and the tilting rod and the support plate are hinged; The anchor guard assembly includes a top anchor guard assembly and a side anchor guard assembly; The transport assembly passes through the cutting carriage and extends to below the transverse-axis cutting assembly.

2. The horizontal axis drilling and anchoring machine according to claim 1, characterized in that: Slide bars are respectively arranged on both sides of the transport component, and a slide groove is arranged at the tail of the cutting slide, and the slide bar moves along the slide groove.

3. The horizontal axis anchoring machine according to claim 2, characterized in that: The outer diameter of the slide bar is smaller than the height of the slide groove; The third lifting cylinder drives the transport assembly to rise and fall with the chassis as a fulcrum; The third lifting cylinder is arranged at the rear of the chassis.

4. The horizontal axis drilling and anchoring machine according to claim 3, characterized in that: A shovel assembly is arranged at the end of the transport assembly, and a fourth lifting cylinder is arranged between the shovel assembly and the transport assembly.

5. The horizontal axis anchoring machine according to claim 4, characterized in that: Loading star wheels are respectively arranged on both sides of the shovel plate assembly.

6. The horizontal axis anchoring machine according to any one of claims 1 to 5, characterized in that: The cutting drum comprises a speed reducer, an intermediate cutting drum, and a first telescopic cutting drum and a second telescopic cutting drum respectively arranged on both sides of the intermediate cutting drum.

7. The horizontal axis drilling and anchoring machine according to claim 6, characterized in that: The first telescopic cutting drum comprises a first outer cylinder, a first inner cylinder and a first telescopic oil cylinder, and the first telescopic oil cylinder drives the first inner cylinder to telescope; The second telescopic cutting drum comprises a second outer cylinder, a second inner cylinder and a second telescopic oil cylinder, and the second telescopic oil cylinder drives the second inner cylinder to telescope.

8. The horizontal axis drilling and anchoring machine according to claim 6, characterized in that: The top anchor assembly comprises a first top anchor assembly and a second top anchor assembly, and the first top anchor assembly and the second top anchor assembly are symmetrically arranged on both sides of the cutting boom.

9. The horizontal axis drilling and anchoring machine according to claim 8, characterized in that: The first top anchor assembly includes a transverse slide rail, a transverse oil cylinder, a slide seat, a drill arm base, a first swing angle oil cylinder, a second swing angle oil cylinder, a third swing angle oil cylinder, a first drill arm and a second drill arm; The transverse oil cylinder drives the slide seat to slide along the transverse slide rail with the transverse slide rail as a fulcrum; The first swing angle oil cylinder drives the first drill arm to swing left and right with the drill arm base as a fulcrum, and the second swing angle oil cylinder drives the second drill arm to swing left and right with the drill arm base as a fulcrum; The third swing angle oil cylinder drives the drill arm base to swing forward and backward with the slide seat as a fulcrum; The first drill boom and the second drill boom are adjacent.

10. The horizontal axis anchoring machine according to claim 6, characterized in that: The side anchor assembly includes a first side anchor assembly and a second side anchor assembly, wherein the first side anchor assembly and the second side anchor assembly are symmetrically arranged on both sides of the dust removal assembly; The first anchor assembly includes a longitudinal slide rail, a longitudinal slide table, a longitudinal oil cylinder, a vertical slide, a vertical slide rail, a vertical oil cylinder, a slewing assembly and a third drill arm; The longitudinal oil cylinder drives the longitudinal slide table to slide with the longitudinal slide rail as a fulcrum; The vertical slide rail is installed on the longitudinal slide, the vertical oil cylinder drives the vertical slide to rise and fall with the vertical slide rail as a fulcrum, and the rotary assembly is installed on the top of the vertical slide; The slewing assembly drives the third drill arm to rotate.

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