Full-section supporting eight-arm driving and anchoring machine

Abstract

The utility model provides a full-section support eight-arm dig-anchor machine, which comprises a machine body, a temporary support assembly, two groups of top anchor rod drilling machines, two middle-high side anchor rod drilling machines and two middle-low side anchor rod drilling machines, the front side of the machine body is provided with a cutting part and a shovel plate part, the rear part of the machine body is provided with a rear support part, and the top anchor rod drilling machines are connected above the machine body through first telescopic arms; the middle-high side anchor rod drilling machine is connected to the first telescopic arm through a second telescopic arm and located on the rear side of the top anchor rod drilling machine, the temporary supporting assembly is hinged to the upper portion of the machine body, and the middle-low side anchor rod drilling machine is connected to the lower rear portion of the machine body through a third telescopic arm. According to the full-section supporting eight-arm dig-bolter provided by the utility model, different parts of a roadway are effectively supported by utilizing the two groups of top anchor rod drilling machines, the two middle-high side anchor rod drilling machines and the two middle-low side anchor rod drilling machines which are symmetrically arranged left and right, and the full-section supporting eight-arm dig-bolter can work simultaneously or independently under the condition that the dig-bolter body is not moved; and the requirement of full-section rapid support in roadway tunneling is met.

Description

Technical Field

[0001] This utility model belongs to the field of tunneling and anchoring machine structure technology, and more specifically, it relates to a full-section support eight-arm tunneling and anchoring machine. Background Technology

[0002] Due to varying geological conditions, underground coal mine roadways employ different excavation techniques, including "one excavation, one anchor," "one excavation, two anchors," and "long-distance, long-anchor excavation." Because of safety, production, and cost management requirements, underground coal mines often use intermittent transportation systems during production shifts. To improve excavation efficiency, the "one excavation, two anchors" method is employed for roadway excavation. Furthermore, because the roof conditions of coal mine roadways are relatively poor, all temporary supports must be installed promptly after excavation.

[0003] In existing technologies, two-arm roadheader machines are commonly used for tunneling operations. While two-arm roadheader machines can effectively reduce the labor intensity of manual workers and solve safety issues during operations, they also suffer from low efficiency, which affects the progress of the operation. Utility Model Content

[0004] The purpose of this invention is to provide a full-section support eight-arm tunneling and anchoring machine that can achieve synchronous support at different locations in the roadway, which helps to improve work efficiency and ensure work progress.

[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows: A full-section support eight-arm tunneling and anchoring machine is provided, comprising a machine body, a temporary support assembly, two sets of top anchor drilling rigs, two medium-high slab anchor drilling rigs, and two medium-low slab anchor drilling rigs. The machine body has a cutting section and a shovel section on its front side and a rear support section on its lower rear side. Each set of top anchor drilling rigs includes two top anchor drilling rigs spaced apart front to back. The top anchor drilling rigs are connected to the upper part of the machine body via a first telescopic arm extending in the front-rear direction for supporting the top of the roadway. The medium-high slab anchor drilling rigs are connected to the first telescopic arm via a second telescopic arm extending in the front-rear direction for supporting the sides of the roadway. The medium-high slab anchor drilling rigs are located behind the top anchor drilling rigs. The temporary support assembly is hinged to the upper part of the machine body and extends forward, capable of vertically swinging to support the area below the roadway roof. The medium-low slab anchor drilling rigs are connected to the lower rear side of the machine body via a third telescopic arm for supporting the lower part of the roadway.

[0006] In one possible implementation, the temporary support assembly includes a swing arm, a sliding telescopic arm, a telescopic drive, and a support beam. The swing arm is hinged to the top of the machine body via a pivot, the sliding telescopic arm is slidably connected to the outer end of the swing arm, the telescopic drive is hinged to the machine body and located in front of the pivot, the extended end of the telescopic drive is hinged to the sliding telescopic arm, and is used to drive the sliding telescopic arm to slide along the extension direction of the swing arm, and the support beam is connected to the outer end of the sliding telescopic arm.

[0007] In some embodiments, the outer end of the sliding telescopic arm is also provided with two symmetrical transverse telescopic arms. The transverse telescopic arms extend to the side away from the central axis of the machine body, and the support beam is connected above the extended end of the transverse telescopic arm and can extend outward under the action of the transverse telescopic arm.

[0008] In one possible implementation, the first telescopic boom is provided with a sliding seat and a top anchor lifting component. The sliding seat is connected above the first telescopic boom, and the top anchor lifting component is slidably connected above the sliding seat in the left-right direction. The top anchor lifting component extends upward, and the top anchor drilling rig is connected to the drive end of the top anchor lifting component.

[0009] In some embodiments, the sliding seat is rotatably connected to the front end of the first telescopic arm via a rotating shaft extending in the vertical direction, and the first telescopic arm is provided with a swing cylinder for driving the sliding seat to rotate around the rotating shaft.

[0010] In one possible implementation, the second telescopic boom includes a slide rail, a slide plate, and a translation drive. The slide rail is connected to the machine body in the front-to-back direction, the slide plate is slidably connected above the slide rail, the high-slab anchor drilling rig is connected above the slide plate, and the translation drive is connected to one end of the slide rail to drive the slide plate and the high-slab anchor drilling rig to move along the slide rail.

[0011] In some embodiments, the slide plate is provided with an upwardly extending anchor lifting component, and the high-strength anchor drilling rig is connected to the drive end of the anchor lifting component for lifting and lowering movement under the drive of the anchor lifting component.

[0012] In one possible implementation, the third telescopic boom includes a rearwardly extending telescopic sleeve with an upwardly extending lifting drive component on the telescopic sleeve. The low-to-medium slab anchor bolt drill is connected to the drive end of the lifting drive component to drive the low-to-medium slab anchor bolt drill to move up and down.

[0013] In one possible implementation, a working platform is provided above the cutting section, and when the top anchor drilling rig and the middle and high slab anchor drilling rig are in the extended state, the working platform is located between the top anchor drilling rig and the middle and high slab anchor drilling rig.

[0014] In one possible implementation, the full-face support eight-arm tunneling and anchoring machine also includes a controller and a hydraulic system electrically connected to the controller, the hydraulic system being connected to the first telescopic boom, the second telescopic boom and the third telescopic boom respectively.

[0015] Compared with the prior art, the solution shown in this application embodiment provides a full-face support eight-arm roadheader that utilizes two sets of top anchor bolt drilling rigs, two medium-high rib anchor bolt drilling rigs, and two medium-low rib anchor bolt drilling rigs arranged symmetrically on the left and right to achieve effective support for different parts of the roadway. The support operation is highly flexible. The above components can work simultaneously or independently without moving the machine body. It can both provide advance support for the roadway roof and complete the top and side anchor bolt and cable support operations, effectively reducing the labor intensity of workers and greatly improving the tunneling efficiency and support efficiency of the equipment. It can meet the needs of rapid full-face support for roadway tunneling. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 A front view structural diagram of the full-section support eight-arm tunneling and anchoring machine in its non-use state, provided for an embodiment of this utility model;

[0018] Figure 2 This is an embodiment of the present utility model. Figure 1 A top-view structural diagram;

[0019] Figure 3 A front view structural schematic diagram of the full-section support eight-arm tunneling and anchoring machine in use, provided in an embodiment of this utility model;

[0020] Figure 4 Provided for the embodiments of this utility model Figure 3 A top-view structural diagram;

[0021] Figure 5 A schematic diagram of the top anchor drilling rig and the first telescopic arm provided for an embodiment of this utility model;

[0022] Figure 6 A schematic diagram of the structure of the high-slope anchor drilling rig and the second telescopic boom provided in this embodiment of the utility model;

[0023] Figure 7 A schematic diagram of the structure of the low-to-medium slab anchor drilling rig and the third telescopic boom provided in this embodiment of the utility model;

[0024] Figure 8 A schematic diagram of the structure of the temporary support component provided in an embodiment of this utility model.

[0025] The following are the labeling elements in the figure:

[0026] 1. Machine body; 11. Cutting section; 12. Shovel plate section; 13. Rear support section; 14. Working platform; 2. Temporary support assembly; 21. Swing arm; 22. Sliding telescopic arm; 23. Telescopic drive component; 24. Support beam; 25. Lateral telescopic arm; 3. Top anchor bolt drilling rig; 4. Medium and high sill anchor bolt drilling rig; 5. Medium and low sill anchor bolt drilling rig; 6. First telescopic arm; 61. Sliding seat; 62. Top anchor lifting component; 63. Rotary shaft; 7. Second telescopic arm; 71. Slide rail; 72. Slide plate; 73. Translation drive component; 74. Sill anchor lifting component; 8. Third telescopic arm; 81. Lifting drive component; 9. Hydraulic system. Detailed Implementation

[0027] To make the technical problems, technical solutions, and beneficial effects of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0028] It should be noted that when an element is referred to as being "set on" another element, it can be directly on the other element or indirectly on the other element. It should be understood that the terms "length," "width," "upper," "lower," "front," "rear," "top," "bottom," "inner," and "outer," etc., indicating orientation or positional relationships, are based on the orientation or positional relationships shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. The terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a number" means two or more, unless otherwise explicitly specified.

[0029] Please refer to the following: Figures 1 to 8The following describes the full-face support eight-arm tunneling and anchoring machine provided by this utility model. The full-face support eight-arm tunneling and anchoring machine includes a body 1, a temporary support assembly 2, two sets of top anchor drilling rigs 3, two medium-high slab anchor drilling rigs 4, and two medium-low slab anchor drilling rigs 5. The body 1 has a cutting section 11 and a shovel plate section 12 on its front side, and a rear support section 13 on its lower rear side. Each set of top anchor drilling rigs 3 includes two top anchor drilling rigs 3 spaced apart front to back. The top anchor drilling rigs 3 are connected to the upper part of the body 1 via a first telescopic arm 6 extending in the front-rear direction, used for drilling the tunnel roof. The middle and high slab rock bolt drilling rig 4 is connected to the first telescopic arm 6 via the second telescopic arm 7 extending in the front-rear direction, and is used to support the side of the roadway. The middle and high slab rock bolt drilling rig 4 is located behind the top rock bolt drilling rig 3. The temporary support assembly 2 is hinged above the machine body 1 and extends forward, and can swing vertically to support the area below the roadway roof. The middle and low slab rock bolt drilling rig 5 is connected to the lower rear of the machine body 1 via the third telescopic arm 8, and is used to support the lower part of the roadway.

[0030] Compared with the prior art, the full-face support eight-arm tunneling and anchoring machine provided in this embodiment utilizes two sets of top anchor drilling rigs 3, two medium and high side anchor drilling rigs 4, and two medium and low side anchor drilling rigs 5 arranged symmetrically on the left and right to achieve effective support for different parts of the roadway. The support operation is highly flexible. The above components can work simultaneously or independently without moving the machine body 1. It can both advance support of the roadway roof and complete the top and side anchor bolt and cable support operations, effectively reducing the labor intensity of workers and greatly improving the tunneling efficiency and support efficiency of the equipment. It can meet the needs of rapid full-face support for roadway tunneling.

[0031] In this embodiment, for ease of description, the end of the machine body 1 with the cutting section 11 is defined as the front end, and the end with the rear support section 13 is defined as the rear end. The two sides of the machine body 1 are the left and right sides, respectively. Two sets of top anchor bolt drilling rigs 3 are symmetrically arranged on the left and right sides of the machine body 1, two medium-high slab anchor bolt drilling rigs 4 are symmetrically arranged on the left and right sides of the machine body 1, and two medium-low slab anchor bolt drilling rigs 5 are also symmetrically arranged on the left and right sides of the machine body 1. This can effectively cover different positions of the roadway around the machine body 1, thereby facilitating anchor bolt and cable support, meeting the requirements of full-section support, and having good practicality.

[0032] The first telescopic arm 6 can adopt a single-stage or two-stage telescopic structure. The second telescopic arm 7 can be connected to the fixed end of the first telescopic arm 6 or to the telescopic end of the first telescopic arm 6. Specifically, the first telescopic arm 6 adopts a two-stage telescopic structure, that is, two telescopic ends are set in sequence within a fixed end. The two telescopic ends are an inner telescopic end that slides with the fixed end and an outer telescopic end that slides with the inner telescopic end. The second telescopic arm 7 is connected to the inner telescopic end. When the inner telescopic end extends outward, it can drive the top anchor bolt drill 3 forward and also drive the two medium and high slab anchor bolt drill 4 forward. Then, the outer telescopic end can continue to drive the top anchor bolt drill 3 forward, and the second telescopic arm 7 can drive the two medium and high slab anchor bolt drill 4 to continue to move forward.

[0033] The cutting section 11 is located at the front end of the machine body 1 and is mainly used for breaking rocks and coal seams. This part typically consists of high-strength cutting tools and a drive mechanism, enabling it to efficiently complete tunneling operations. The performance of the cutting section 11 directly affects the working efficiency and tunneling speed of the roadheader.

[0034] The shovel section 12 is also located at the front end of the machine body 1 and below the cutting section 11. The function of the shovel section 12 is to load and transport the excavated stones, coal gangue and soil and other impurities, and to ensure the normal use and production efficiency of the tunneling and anchoring machine.

[0035] Before the permanent support structure is erected, temporary support components 2 can be used for temporary support to prevent rockfall from the roadway roof. At the same time, they can restrain and control the deformation of the surrounding rock, enhance the stability of the surrounding rock, prevent collapse and other problems, and ensure the safety of construction operations.

[0036] The temporary support component 2 can swing vertically to support the area below the roadway roof. In addition, the temporary support component 2 can also extend and retract in the front and rear directions to expand its support range, improve the roadway support efficiency, and ensure the smooth progress of the project.

[0037] The rear support 13 is mainly used to reduce vibration during the construction of the cutting section 11, improve the stability of the work, and also effectively prevent the lateral sliding of the machine body 1.

[0038] Please refer to one possible implementation as well. Figures 1 to 8 The temporary support assembly 2 includes a swing arm 21, a sliding telescopic arm 22, a telescopic drive component 23, and a support beam 24. The swing arm 21 is hinged to the top of the machine body 1 via a pivot 63. The sliding telescopic arm 22 is slidably connected to the outer end of the swing arm 21. The telescopic drive component 23 is hinged to the machine body 1 and located in front of the pivot 63. The extended end of the telescopic drive component 23 is hinged to the sliding telescopic arm 22 and is used to drive the sliding telescopic arm 22 to slide along the extension direction of the swing arm 21. The support beam 24 is connected to the outer end of the sliding telescopic arm 22.

[0039] In this embodiment, a fixed seat for mounting the swing arm 21 is provided on the upper part of the machine body 1. The bottom of the fixed seat is fixedly connected to the machine body 1 by bolts or screws and other connecting parts. The lower end of the sliding telescopic arm 22 is hinged to the fixed seat. The sliding telescopic arm 22 extends forward of the machine body 1. The supporting beam 24 is hinged to the upper end of the sliding telescopic arm 22 and is used to support the underside of the tunnel roof.

[0040] The lower end of the telescopic drive component 23 is hinged to the machine body 1, and the other end is hinged to the middle of the sliding telescopic arm 22. The hinge point between the telescopic drive component 23 and the machine body 1 is located on the front side of the rotating shaft 63. The sliding telescopic arm 22 can be supported below the sliding telescopic arm 22. The sliding telescopic arm 22 and the swing arm 21 are driven to swing upward synchronously, so as to achieve effective support for the roof of the roadway.

[0041] Specifically, the sliding telescopic boom 22 can be set in two or more stages, and adopts a structure of sequentially nested sliding fit. It can extend forward and upward under the drive of the telescopic drive component 23 to meet the height and position requirements of temporary support.

[0042] In some embodiments, please refer to the following: Figures 1 to 8 The outer end of the sliding telescopic arm 22 is also provided with two symmetrical transverse telescopic arms 25. The transverse telescopic arms 25 extend to the side away from the central axis of the body 1. The supporting beam 24 is connected above the extended end of the transverse telescopic arm 25 and can extend outward under the drive of the transverse telescopic arm 25.

[0043] In this embodiment, the support area of ​​the supporting beam 24 can be effectively expanded by extending the transverse telescopic arm 25, forming a more comprehensive support effect for the roadway roof. The anchor mesh steel strips on both sides are used to provide temporary support for both sides of the roadway roof in the width direction at the same time.

[0044] Please refer to one possible implementation as well. Figures 1 to 8 The first telescopic arm 6 is provided with a sliding seat 61 and a top anchor lifting component 62. The sliding seat 61 is connected above the first telescopic arm 6, and the top anchor lifting component 62 is slidably connected above the sliding seat 61 in the left and right direction. The top anchor lifting component 62 extends upward, and the top anchor drill 3 is connected to the drive end of the top anchor lifting component 62.

[0045] In this embodiment, a translation drive 73 is provided above the sliding seat 61 to drive the top anchor lifting component 62 to move left and right. The first telescopic arm 6 can move the top anchor drilling rig 3 back and forth, and can also move the top anchor drilling rig 3 horizontally left and right using the sliding seat 61. Additionally, it can drive the top anchor assembly to move up and down via the top anchor lifting component 62. The two top anchor drilling rigs 3 can perform anchor bolt and cable support operations simultaneously and in parallel, or they can perform anchor bolt and cable support operations independently.

[0046] In some embodiments, please refer to the following: Figures 1 to 8 The sliding seat 61 is rotatably connected to the front end of the first telescopic arm 6 via a rotating shaft 63 extending vertically. The first telescopic arm 6 is equipped with a swing cylinder for driving the sliding seat 61 to rotate around the rotating shaft 63. The swing cylinder drives the sliding seat 61 to rotate around the rotating shaft 63, thereby causing the top anchor lifting component 62 and the top anchor drilling rig 3 above the sliding seat 61 to swing horizontally by 90 degrees, so that the two top anchor drilling rigs 3 on the sliding seat 61 are arranged at intervals in the left and right directions, achieving effective coverage in the width direction of the roadway.

[0047] Please refer to one possible implementation as well. Figures 1 to 8 The second telescopic arm 7 includes a slide rail 71, a slide plate 72, and a translation drive component 73. The slide rail 71 is connected to the body 1 in the front-to-back direction. The slide plate 72 is slidably connected above the slide rail 71. The medium-high slab anchor drilling rig 4 is connected above the slide plate 72. The translation drive component 73 is connected to one end of the slide rail 71 and is used to drive the slide plate 72 and the medium-high slab anchor drilling rig 4 to move along the slide rail 71.

[0048] In this embodiment, the slide rail 71 and the slide plate 72 can slide and cooperate with each other. The translation drive component 73 drives the slide plate 72 to move horizontally back and forth along the slide rail 71, thereby adjusting the front and rear position of the medium and high slab anchor bolt drilling machine 4. The medium and high slab anchor bolt drilling machine 4 can move forward to the front two sides of the machine body 1, located behind the top anchor bolt drilling machine 3, to achieve effective support for the medium and high positions on both sides of the roadway, ensuring a reliable support effect.

[0049] In some embodiments, please refer to the following: Figures 1 to 8 The sliding plate 72 is provided with an upwardly extending anchor lifting component 74. The medium and high anchor drilling machine 4 is connected to the drive end of the anchor lifting component 74 and is used to move up and down under the drive of the anchor lifting component 74.

[0050] In this embodiment, the side anchor lifting component 74 installed on the sliding plate 72 can drive the medium and high side anchor drilling machine 4 to move up and down, thereby adjusting the support position in the height direction and meeting the support needs at different height positions on both sides of the roadway.

[0051] Please refer to one possible implementation as well. Figures 1 to 8 The third telescopic arm 8 includes a telescopic sleeve extending backward, and a lifting drive component 81 extending upward is provided on the telescopic sleeve. The low-to-medium slab anchor bolt drill 5 is connected to the drive end of the lifting drive component 81 and is used to drive the low-to-medium slab anchor bolt drill 5 to move up and down.

[0052] In this embodiment, the low-slope anchor drilling rig 5 is installed on the rear support 13 and located behind the rear support 13. The third telescopic arm 8 adopts a telescopic sleeve structure, and the telescopic sleeve can be adjusted to meet the needs of moving the low-slope anchor assembly back and forth.

[0053] Based on this, the extended end of the rear of the lifting sleeve is also provided with a lifting drive component 81. The lifting action of the lifting drive component 81 is used to adjust the up and down movement of the low-to-medium rib anchor bolt drilling machine 5, so as to meet the support needs of the low-to-medium rib anchor bolt drilling machine 5 for different positions in the rear area of ​​the roadway.

[0054] Please refer to one possible implementation as well. Figures 1 to 8 A working platform 14 is provided above the cutting section 11. When the top anchor drilling machine 3 and the middle and high slab anchor drilling machine 4 are in the extended state, the working platform 14 is located between the top anchor drilling machine 3 and the middle and high slab anchor drilling machine 4.

[0055] In this embodiment, a working platform 14 can be provided above the cutting section 11. The working platform 14 is located between the two sets of top anchor drilling machines 3 and the two sets of medium and high slab anchor drilling machines 4 that extend forward, which makes it convenient for operators to operate the two sets of top anchor drilling machines 3 and the two sets of medium and high slab anchor drilling machines 4.

[0056] Furthermore, the work platform 14 adopts an expandable structure to increase the working area. The work platform 14 can adopt an outward flip-open expansion structure or an outward sliding expansion structure, which is convenient for folding when not in use and can also meet the needs of different sizes of work during use.

[0057] Please refer to one possible implementation as well. Figures 1 to 8 The full-face support eight-arm tunneling and anchoring machine also includes a controller and a hydraulic system 9 electrically connected to the controller. The hydraulic system 9 is connected to the first telescopic arm 6, the second telescopic arm 7 and the third telescopic arm 8 respectively.

[0058] In this embodiment, the controller can control the hydraulic system 9, which enables the first telescopic arm 6, the second telescopic arm 7, and the third telescopic arm 8 to extend and retract. In addition, a water system and solenoid valves are installed on the machine body 1. The controller is also electrically connected to the solenoid valves to send control commands to them, thereby opening and closing the water system to meet the dust reduction requirements during cutting and the cooling requirements of the equipment.

[0059] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A full-face support eight-arm tunneling and anchoring machine, characterized in that, The system includes a main body (1), a temporary support assembly (2), two sets of top anchor drilling rigs (3), two medium-high slab anchor drilling rigs (4), and two medium-low slab anchor drilling rigs (5). The main body (1) has a cutting section on its front side. 11) and shovel plate (12), and rear support (13) are provided at the rear bottom. Each set of top anchor drilling rigs (3) includes two top anchor drilling rigs (3) arranged at intervals in front and behind. The top anchor drilling rig (3) is connected to the upper part of the machine body (1) through a first telescopic arm (6) extending in the front-back direction and is used to support the top of the roadway. The medium and high side anchor drilling rig (4) is connected to the first telescopic arm (6) through a second telescopic arm (7) extending in the front-back direction and is used to support the side of the roadway. The medium and high side anchor drilling rig (4) is located on the rear side of the top anchor drilling rig (3). The temporary support assembly (2) is hinged to the upper part of the machine body (1) and extends forward. It can swing vertically to support the bottom of the roadway roof. The medium and low side anchor drilling rig (5) is connected to the rear bottom of the machine body (1) through a third telescopic arm (8) and is used to support the lower part of the roadway.

2. The full-face support eight-arm tunneling and anchoring machine as described in claim 1, characterized in that, The temporary support assembly (2) includes a swing arm (21), a sliding telescopic arm (22), a telescopic drive (23), and a support beam (24). The swing arm (21) is hinged to the top of the body (1) via a pivot (63). The sliding telescopic arm (22) is slidably connected to the outer end of the swing arm (21). The telescopic drive (23) is hinged to the body (1) and located in front of the pivot (63). The extended end of the telescopic drive (23) is hinged to the sliding telescopic arm (22) to drive the sliding telescopic arm (22) to slide along the extension direction of the swing arm (21). The support beam (24) is connected to the outer end of the sliding telescopic arm (22).

3. The full-face support eight-arm tunneling and anchoring machine as described in claim 2, characterized in that, The outer end of the sliding telescopic arm (22) is also provided with two left-right symmetrical transverse telescopic arms (25). The transverse telescopic arms (25) extend to the side away from the central axis of the body (1). The supporting beam (24) is connected above the extended end of the transverse telescopic arm (25) and can extend outward under the drive of the transverse telescopic arm (25).

4. The full-face support eight-arm tunneling and anchoring machine as described in claim 1, characterized in that, The first telescopic arm (6) is provided with a sliding seat (61) and a top anchor lifting component (62). The sliding seat (61) is connected above the first telescopic arm (6). The top anchor lifting component (62) is slidably connected above the sliding seat (61) in the left and right direction. The top anchor lifting component (62) extends upward. The top anchor drilling machine (3) is connected to the drive end of the top anchor lifting component (62).

5. The full-face support eight-arm tunneling and anchoring machine as described in claim 4, characterized in that, The sliding seat (61) is rotatably connected to the front end of the first telescopic arm (6) via a rotating shaft (63) extending in the vertical direction. The first telescopic arm (6) is provided with a swing cylinder for driving the sliding seat (61) to rotate around the rotating shaft (63).

6. The full-face support eight-arm tunneling and anchoring machine as described in claim 1, characterized in that, The second telescopic arm (7) includes a slide rail (71), a slide plate (72), and a translation drive (73). The slide rail (71) is connected to the body (1) in the front-back direction. The slide plate (72) is slidably connected above the slide rail (71). The medium-high slab anchor drill (4) is connected above the slide plate (72). The translation drive (73) is connected to one end of the slide rail (71) and is used to drive the slide plate (72) and the medium-high slab anchor drill (4) to move along the slide rail (71).

7. The full-face support eight-arm tunneling and anchoring machine as described in claim 6, characterized in that, The sliding plate (72) is provided with an upwardly extending anchor lifting member (74), and the medium and high anchor drilling machine (4) is connected to the drive end of the anchor lifting member (74) for lifting and moving under the drive of the anchor lifting member (74).

8. The full-face support eight-arm tunneling and anchoring machine as described in claim 1, characterized in that, The third telescopic arm (8) includes a telescopic sleeve extending backward, and the telescopic sleeve is provided with an upwardly extending lifting drive (81). The low-to-medium slab anchor drill (5) is connected to the drive end of the lifting drive (81) and is used to drive the low-to-medium slab anchor drill (5) to move up and down.

9. The full-face support eight-arm tunneling and anchoring machine as described in claim 1, characterized in that, A working platform (14) is provided above the cutting section (11). When the top anchor drilling machine (3) and the middle and high slab anchor drilling machine (4) are in the extended state, the working platform (14) is located between the top anchor drilling machine (3) and the middle and high slab anchor drilling machine (4).

10. The full-face support eight-arm tunneling and anchoring machine as described in claim 1, characterized in that, The full-section support eight-arm tunneling and anchoring machine also includes a controller and a hydraulic system (9) electrically connected to the controller. The hydraulic system (9) is connected to the first telescopic arm (6), the second telescopic arm (7) and the third telescopic arm (8) respectively.

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