Cantilever type disc cutter rock breaking tunneling device

Abstract

The invention belongs to the technical field of roadway tunneling, and discloses a cantilever type disc cutter rock breaking tunneling device. Comprising a first-section working mechanism, a second-section working mechanism and a hinging mechanism for connecting the first-section working mechanism and the second-section working mechanism, the first-section working mechanism comprises a cutting part, a loading part, a first-section walking mechanism, a first-section machine body, a first-section conveying part and a cutting part swinging mechanism; the second-section working mechanism comprises a second-section conveying part, a second-section walking mechanism, a second-section machine body, a swingable discharging mechanism and a control system. The cutting part is high in rock breaking capacity and cutting efficiency, the cutting driving device of the cutting part rotates to drive the tool rest body and the disc cutter to rotate, meanwhile, the cutting part swing mechanism in the first section of machine body drives the disc cutter of the cutting part to be pressed into rock, the stability is good, meanwhile, left-right and up-down swing of the cutting part can be achieved, and the cutting efficiency is improved. And the cutting section can be adjusted at will within the application range.

Description

Technical Field

[0001] The invention belongs to the technical field of underground tunneling, in particular to a cantilever disc-shaped roller cutter rock breaking tunneling device. Background Art

[0002] The cantilever roadheader has the characteristics of good adaptability to geological conditions, flexible body adjustment, and good tunnel forming quality. However, it is limited by factors such as rock breaking mechanism and pick-shaped cutter characteristics. When facing hard rock cutting with a hardness greater than 100MPa, problems such as cutter wear and component failure become prominent. The method of increasing the rock breaking capacity by increasing the cutting power and increasing the weight of the whole machine can no longer meet current needs.

[0003] At present, there are two main methods for developing full-rock tunnels with a unidirectional compressive strength of rock greater than 100MPa: full-section tunnel boring machine construction method and drilling and blasting method. In the drilling and blasting method, the surrounding rock is greatly disturbed, the tunnel forming quality is poor, the degree of mechanization is low, and the risk is high. Full-section tunnel boring machines are used in long-distance hard rock tunneling projects in eastern coal mines due to their strong rock breaking ability, high degree of automation, and safe operating environment. However, due to limitations in size, cutter head shape, and structural form, full-section tunnel boring machines have shortcomings such as difficulty in underground assembly, poor flexibility, the cross-sectional shape can only be circular, and poor adaptability to geological conditions. In addition, there are also problems with high procurement and use costs. Summary of the invention

[0004] The present invention aims to solve the problems in the prior art of drilling and blasting construction, such as large disturbance of surrounding rocks, poor tunnel forming quality, low mechanization degree and high risk; the high cost of full-section tunnel boring machine construction, and the section shape can only be circular and fixed in size. To this end, a cantilever disc cutter rock breaking and tunneling device is provided, comprising: a first section working mechanism, a second section working mechanism and an articulated mechanism for connecting the two;

[0005] The first section working mechanism includes a cutting part, a loading part, a first section walking mechanism, a first section body, a first section transport part, and a cutting part swing mechanism;

[0006] The second section working mechanism includes the second section transport part, the second section walking mechanism, the second section fuselage, the swingable unloading mechanism, and the control system;

[0007] The cutting part is arranged at the head of the first fuselage section, and is used to contact the rock and generate cracks in the rock wall. The cutting part swing mechanism is arranged inside the first fuselage section and is connected to the cutting part swing mechanism. The cutting part is controlled by the cutting part swing mechanism to extend forward and press into the rock from different angles.

[0008] The first section running mechanism is arranged at the bottom of the first section fuselage, and the second section running mechanism is arranged at the bottom of the second section fuselage;

[0009] The loading part is arranged on the side of the first fuselage section close to the cutting part, the first transport part is arranged on the side of the first fuselage section close to the second working mechanism, the second transport part is arranged on the side of the second fuselage section close to the first working mechanism, the swingable unloading machine is arranged at the tail of the second fuselage section, and the loading part, the first transport part, the second transport part and the swingable unloading mechanism are connected in sequence;

[0010] The control system is arranged on one side of the second fuselage section and is electrically connected to the motor of the hydraulic system pump station to control the start and stop of the actuators of the above-mentioned parts.

[0011] Optionally, the cutting part includes a plurality of disc cutters, a plurality of tool holder bodies, a right cantilever, a left cantilever and a cutting drive device, the right cantilever and the left cantilever are connected to the swing mechanism of the cutting part, a cutter disc is arranged between the left cantilever and the right cantilever, a plurality of tool holder bodies are distributed on the circumferential surface of the cutter disc, two groups of disc cutters are rotatably arranged between adjacent tool holder bodies, and the cutting drive device is arranged inside the cutter disc, and the cutting drive device is used to drive the disc cutter to revolve around the center line of the cutter disc.

[0012] Optionally, the cutting part swing mechanism includes a cutting and rotating mechanism, a sliding upper frame, a fixed lower frame, two groups of cutting swing cylinders, a cutting telescopic cylinder and a rotating mechanism. The fixed lower frame is fixedly connected to the first fuselage section, the sliding upper frame is sleeved on one end of the fixed lower frame close to the cutting part, the left cantilever and the right cantilever are fixedly arranged on the cutting and rotating mechanism, and the cutting and rotating mechanism is fixedly arranged on the sliding upper frame. One end of the cutting and rotating cylinder is fixed to the cutting and rotating mechanism, and the other end is fixed to the sliding upper frame. The cutting part is swung left and right by the two cutting and rotating cylinders being extended and retracted in different and alternating states. One end of the cutting and telescopic cylinder is fixedly connected to the sliding upper frame, and the other end is fixed to the fixed lower frame. The sliding upper frame is advanced or retreated by the extension and contraction of the cutting and telescopic cylinder. A rotating mechanism is symmetrically arranged at the connection between the cutting part and the cutting and rotating mechanism along the center line of the circumferential surface of the cutting part, and the rotation of the rotating mechanism drives the cutting part to swing up and down.

[0013] Optionally, the swingable unloading mechanism includes two sets of telescopic swing cylinders, a conveyor, and a slewing mechanism. One end of the slewing mechanism is fixedly connected to the second fuselage section, and the other end of the slewing mechanism is rotatably arranged on the conveyor. The tail of the second transport section corresponds to the head position of the conveyor. One end of the telescopic swing cylinder is hinged to the tail of the second fuselage section, and the other end is connected to the middle section of the conveyor.

[0014] Optionally, a fixed slide is also fixedly provided on the second fuselage section, a mobile slide is sleeved on one end of the fixed slide, an anchoring mechanism is connected to one side of the mobile slide, the mobile anchoring mechanism includes a drill rack, a drill box and a rotating and swinging mechanism, a drill rack is provided above the drill box, the drill rack is connected to the drill rack fixing seat through a drill rack fixing pin, a rotating and swinging mechanism is provided on one side of the drill box, and the rotating and swinging mechanism is used to adjust the position and angle of the drill rack, thereby adjusting the position and angle of the drill anchor hole in a small range.

[0015] Optionally, the rotating and swinging mechanism includes a forward and backward swinging cylinder and a left and right rotating mechanism, one end of the forward and backward swinging cylinder is fixed on the drill rig, and the other end is fixed on the drill rig fixed seat, the forward and backward swinging cylinder drives the drill rig to swing in the running direction of the tunnel boring machine, the fixed end of the left and right rotating mechanism is fixed on the mobile slide, and the rotating end of the left and right rotating mechanism is fixed on the drill rig fixed seat, and the left and right rotating mechanism drives the drill rig to swing perpendicular to the running direction of the tunnel boring machine.

[0016] Optionally, a plurality of groups of upper supporting mechanisms are provided at the top ends of the first and second fuselage sections, and a lower supporting mechanism is provided at the bottom end of the tail of the second fuselage section.

[0017] Optionally, four groups of upper support mechanisms are respectively arranged at the top of the first fuselage section and the second fuselage section; the upper support mechanism is composed of a telescopic cylinder and a support plate, one end of the telescopic cylinder is fixedly connected to the top of the first fuselage section or the top of the second fuselage section, and the other end is fixedly connected to the support plate, and the support plate abuts against the upper wall of the tunnel when the telescopic cylinder is extended.

[0018] Optionally, the angle between the conveyor and the tunnel ground is 25°-30°.

[0019] Optionally, a centralized control center for staff operation is also provided on the second fuselage section, and a plurality of control buttons are provided in the centralized control center for electrical connection with various control branches of the control system.

[0020] The present invention provides a cantilever disc cutter rock breaking and tunneling device, which has the following beneficial effects:

[0021] The cutting part adopts the principle of disc cutter cutting and breaking rocks, with strong rock breaking ability and high cutting efficiency. The cutting part adopts a double cantilever fixed structure. The cutting drive device of the cutting part rotates to drive the cutter frame and the disc cutter to rotate. At the same time, the telescopic mechanism in the first section of the fuselage pushes the disc cutter of the cutting part into the rock. While having good stability, the cutting part can swing left and right, up and down, and the cutting section can be adjusted arbitrarily within the adaptation range. When the cutting part is cutting and breaking rocks, the upper support mechanism can adjust the number of top support cylinders in real time according to the stability of the whole machine, to ensure the working stability of the device while reducing the damage to the tunnel roof. The unloading point of the swingable unloading mechanism can be adjusted in a large range up and down, left and right, to realize flexible connection with various supporting methods such as subsequent mine cars, shovels, belt conveyors, etc. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 A schematic diagram of the structure of a cantilever disc cutter rock breaking tunneling device

[0023] Figure 2 A schematic diagram of the structure of a cantilever disc cutter rock breaking tunneling device

[0024] Figure 3 This is the first section of the mechanism structure diagram

[0025] Figure 4 This is the second section of the mechanism structure diagram

[0026] Figure 5 Schematic diagram of the cutting part structure

[0027] Figure 6 Schematic diagram of anchor protection mechanism structure

[0028] Figure 7 Schematic diagram of the swingable unloading mechanism

[0029] Figure 8 It is a structural schematic diagram of the swing mechanism of the cutting part;

[0030] Fig. 9 A top view of the swing mechanism of the cutting part;

[0031] Fig.10 It is a schematic diagram of the structure of the first transport section, the second transport section and the swingable unloading mechanism;

[0032] Fig.11 This is a schematic diagram of the structure of the anchor protection mechanism from another angle.

[0033] In the figure: 1, the first section of the working mechanism; 2, the second section of the working mechanism; 11, the cutting part; 111, the disc hob; 112, the cutter frame; 113, the right cantilever; 114, the left cantilever; 115, the cutting drive device; 12, the loading part; 13, the first section of the walking mechanism; 14, the first section of the fuselage; 141, the cutting rotary mechanism; 142, the sliding upper frame; 143, the fixed lower frame; 144, the cutting swing cylinder; 145, the cutting telescopic cylinder; 146, the rotating mechanism; 15, the upper support mechanism; 16, the lower support mechanism; 17, the first section of the transport part ; 18. Articulated mechanism; 21. The second section transport section; 22. Anchoring mechanism; 221. Drill rig; 222. Drill box; 223. Drill rig fixing pin; 224. Forward and backward swing cylinder; 225. Drill rig fixing seat; 226. Left and right rotation mechanism; 227. Fixed slide; 228. Mobile slide; 23. Centralized control center; 24. The second section walking mechanism; 25. The second section fuselage; 26. Control system; 27. The second section supporting and stabilizing mechanism; 28. Swingable unloading mechanism; 281. Telescopic swing cylinder; 282. Conveyor; 283. Rotating mechanism. DETAILED DESCRIPTION

[0034] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0035] like Figure 1-Figure 4As shown, the present invention provides a cantilever disc cutter rock breaking and tunneling device, including a first section working mechanism 1, a second section working mechanism 2 and an articulated mechanism 18 for connecting the two. The first section working mechanism 1 includes a cutting part 11, a loading part 12, a first section walking mechanism 13, a first section body 14, a first section transport part 17, and a cutting part swing mechanism. The second section working mechanism 2 includes a second section transport part 21, a centralized control center 23, a second section walking mechanism 24, a second section body 25, and a swingable unloading mechanism 28. The cutting part 11 is arranged at the front end of the first section body 14, and is used to contact with the rock and generate cracks in the rock wall. The cutting part swing mechanism is arranged inside the first section body 14 and is connected to the cutting part swing mechanism. The cutting part 11 is controlled by the cutting part swing mechanism to extend forward and press into the rock from different angles. The first section walking mechanism 13 is arranged at the bottom of the first section body 14, and the second section walking mechanism 24 is arranged at the bottom of the second section body 25. The first section walking mechanism 13 and the second section walking mechanism 24 are composed of crawlers and crawler wheels to ensure stable forward and backward movement in the tunnel. The loading part 12 is arranged on the side of the first section body 14 close to the cutting part 11, the first section transport part 17 is arranged on the side of the first section body 14 close to the second section working mechanism 2, the second section transport part 21 is arranged on the side of the second section body 25 close to the first section working mechanism 1, and the swingable unloading machine is arranged at the tail of the second section body 25. The loading part 12, the first section transport part 17, the second section transport part 21 and the swingable unloading mechanism 28 are connected in sequence. The loading part 12 is equipped with a climbing claw and a scraper chain, which can collect and transport the accumulated slag on the ground.

[0036] Based on the above implementation, in a preferred implementation, as Figure 5 As shown, the cutting part 11 includes a plurality of disc cutters 111, a plurality of tool holder bodies 112, a right cantilever 113, a left cantilever 114 and a cutting drive device 115. The right cantilever 113 and the left cantilever 114 are both connected to the swing mechanism of the cutting part. A cutter disc is arranged between the left cantilever 114 and the right cantilever 113. A plurality of tool holder bodies 112 are distributed on the circumferential surface of the cutter disc. Two groups of disc cutters 111 are rotatably arranged between adjacent tool holder bodies 112. The cutting drive device 115 is arranged inside the cutter disc. The cutting drive device 115 is used to drive the disc cutters to revolve around the center line of the cutter disc.

[0037] like Figure 8 and Fig. 9As shown, the cutting part swing mechanism includes a cutting rotary mechanism 141, a sliding upper frame 142, a fixed lower frame 143, two sets of cutting swing oil cylinders 144, a cutting telescopic oil cylinder 145 and a rotating mechanism 146. The fixed lower frame 143 is fixedly connected to the first fuselage 14, the sliding upper frame 142 is sleeved on one end of the fixed lower frame 143 close to the cutting part 11, the left cantilever 114 and the right cantilever 113 are fixedly arranged on the cutting rotary mechanism 141, the cutting rotary mechanism 141 is fixedly arranged on the sliding upper frame 142, one end of the cutting swing oil cylinder 144 is connected to the cutting rotary mechanism 141 One end of the cutting telescopic oil cylinder 145 is fixedly connected to the sliding upper frame 142, and the other end is fixed to the sliding upper frame 142. The cutting part 11 is swung left and right by alternating between the two cutting swing cylinders 144 extending and retracting in different states. One end of the cutting telescopic oil cylinder 145 is fixedly connected to the sliding upper frame 142, and the other end is fixed to the fixed lower frame 143. The sliding upper frame 142 is advanced or retreated by the extension and contraction of the cutting telescopic oil cylinder 145. A rotating mechanism 146 is symmetrically arranged at the connection between the cutting part 11 and the cutting rotating mechanism 141 along the center line of the circumferential surface of the cutting part 11. The rotating mechanism 146 rotates to drive the cutting part 11 to swing up and down.

[0038] like Figure 6 As shown, a fixed slide 227 is also fixedly provided on the second fuselage section 25, and a movable slide 228 is sleeved on one end of the fixed slide 227, and an anchoring mechanism 22 is connected to one side of the movable slide 228. The movable anchoring mechanism 22 includes a drill frame 221, a drill box 222 and a rotating and swinging mechanism. A drill frame 221 is provided above the drill box 222, and the drill frame 221 is connected to the drill frame fixing seat 225 through a drill frame fixing pin 223. A rotating and swinging mechanism is provided on one side of the drill box 222, and the rotating and swinging mechanism is used to adjust the position and angle of the drill frame 221, thereby adjusting the position and angle of the drill anchor hole in a small range.

[0039] Specifically, Fig.11 As shown, the rotating and swinging mechanism includes a front-to-back swinging oil cylinder 224 and a left-to-right rotating mechanism 226. One end of the front-to-back swinging oil cylinder 224 is fixed on the drill frame 221, and the other end is fixed on the drill frame fixing seat 225. The front-to-back swinging oil cylinder 224 drives the drill frame 221 to swing in the direction of the tunneling machine. The fixed end of the left-to-right rotating mechanism 226 is fixed on the moving slide 228, and the rotating end of the left-to-right rotating mechanism 226 is fixed on the drill frame fixing seat 225. The left-to-right rotating mechanism 226 drives the drill frame 221 to swing perpendicular to the direction of the tunneling machine. The left-to-right rotating mechanism 226 is an existing rotary device, which is driven by a motor to rotate the worm, drive the rotating disk to rotate, and drive the drill frame 221 to rotate around the drill frame fixing seat 225 through the rotating disk.

[0040] like Figure 7As shown, based on the above embodiment, in a preferred embodiment, the swingable unloading mechanism 28 includes a telescopic swing oil cylinder 281, a conveyor 282, and a slewing mechanism 283. One end of the slewing mechanism 283 is fixedly connected to the second fuselage 25, and the other end of the slewing mechanism 283 is hingedly provided with an upwardly inclined conveyor 282. One end of the telescopic swing oil cylinder 281 is hinged to the second fuselage 25, and the other end is connected to the middle section of the conveyor 282. The unloading point of the swingable unloading mechanism 28 can be adjusted in a wide range up and down and left and right, so as to realize flexible overlap of various matching modes such as a rear matching mine car, a shovel truck, and a belt conveyor.

[0041] The angle between the conveyor 282 and the tunnel surface is 25°-30°.

[0042] On the basis of the above-mentioned embodiments, in a preferred embodiment, a plurality of groups of upper support mechanisms 15 are arranged at the top of the first fuselage section 14 and the second fuselage section 25, and a lower support mechanism 16 is arranged at the bottom of the second fuselage section 25. The upper support mechanism 15 is suitable for supporting the top of the tunnel during excavation, and the lower support mechanism 16 is used for the stable operation of the second fuselage section 25 during excavation.

[0043] Specifically, four groups of upper support mechanisms 15 are respectively arranged at the top of the first section body 14 and the second section body 25; the upper support mechanism 15 is composed of a telescopic oil cylinder and a support plate, one end of the telescopic oil cylinder is fixedly connected to the top of the first section body 14 and the top of the second section body 25, and the other end is fixedly connected to the support plate, and the support plate abuts against the upper wall of the tunnel when the telescopic oil cylinder is extended. When the cutting part 11 cuts and breaks rocks, the upper support mechanism 15 can adjust the number of telescopic oil cylinders in real time according to the stability of the whole machine, ensuring the working stability of the device while reducing damage to the tunnel roof.

[0044] Specifically, four sets of upper support mechanisms 15 are respectively arranged at the top of the first fuselage 14 and the second fuselage 25. A control system 26 is also arranged on one side of the second fuselage 25, and the control system 26 is electrically connected to the switches of the upper support mechanism 15 and the lower support mechanism 16.

[0045] The control system 26 is arranged on one side of the second fuselage 25, and is electrically connected to the motor of the hydraulic system pump station, and is used to control the start and stop of the cutting part 11, the cutting part swing mechanism, the swingable unloading mechanism 28, the upper support mechanism 15, and the lower support mechanism 16, and also controls the power on and off of auxiliary electrical components, such as lighting, signal lights, emergency stop buttons, etc. The second fuselage 25 is also provided with a centralized control center 23 for staff operation, and a number of control buttons are arranged in the centralized control center 23, which are used to be electrically connected to the control branches of each part of the control system 26.

[0046] The specific usage and function of this embodiment are as follows:

[0047] The first section of the working mechanism 1 is connected to the second section of the working mechanism 2 through the hinge mechanism 18. The cutting drive device 115 in the cutting part 11 rotates to drive the cutter frame 112 and the disc cutter 111 to rotate. At the same time, the cutting telescopic cylinder 145 in the first section of the fuselage 14 pushes the disc cutter 111 of the cutting part 11 into the rock to achieve rolling cutting and rock breaking. The cutting part 11 can be swung up and down by rotating the rotating mechanism 146 clockwise or counterclockwise, and the cutting part 11 can be swung left and right by telescoping the cutting swing cylinder 144. During the rolling cutting and rock breaking process, the upper support mechanism 15 can be extended to support the top plate of the tunnel, and the lower support mechanism 16 can be extended to support the bottom plate of the tunnel to achieve the purpose of stabilizing the entire excavation device. The first section of the walking mechanism 13 and the second section of the walking mechanism 24 realize the mobilization of the entire excavation device when the cutting part is not working. The broken rocks cut by the cutting part 11 are transferred to the swingable unloading mechanism 28 through the loading part 12, the first section transport part 17, and the second section transport part 21. The swingable unloading mechanism 28 is retracted by one of the telescopic swing cylinders 281 and extended by the other telescopic swing cylinder 281. The two states are alternately swung. The rotary mechanism 283 adjusts the unloading point position of the conveyor 282 to realize direct loading of the rock fragments or transporting them to the rear matching belt. The anchor protection mechanism 22 is installed on the second section of the fuselage 25. The anchor rod (cable) is supported by the lifting and lowering of the drill frame 221 and the rotation of the drill box 222. The left and right rotating mechanism 226 drives the drill frame 221 to swing left and right, and the front and rear swing cylinders 224 drive the drill frame 221 to swing back and forth, which can realize the small range adjustment of the position and angle of the drill anchor rod (cable) hole.

Claims

1. A cantilever disc cutter rock breaking and tunneling device, characterized in that: include: A first working mechanism (1), a second working mechanism (2), and a hinge mechanism (18) for connecting the two; The first working mechanism (1) comprises a cutting part (11), a loading part (12), a first walking mechanism (13), a first body (14), a first transport part (17), and a cutting part swinging mechanism; The second working mechanism (2) comprises a second transport section (21), a second walking mechanism (24), a second body (25), a swingable unloading mechanism (28), and a control system (26); The cutting part (11) is arranged at the head of the first fuselage (14) and is used to contact the rock and generate cracks in the rock wall. The cutting part swing mechanism is arranged inside the first fuselage (14). The cutting part (11) is connected to the cutting part swing mechanism. The cutting part swing mechanism controls the cutting part (11) to extend forward and press into the rock from different angles. The first section running mechanism (13) is arranged at the bottom of the first section fuselage (14), and the second section running mechanism (24) is arranged at the bottom of the second section fuselage (25); The loading section (12) is arranged on a side of the first fuselage (14) close to the cutting section (11), the first transport section (17) is arranged on a side of the first fuselage (14) close to the second working mechanism (2), the second transport section (21) is arranged on a side of the second fuselage (25) close to the first working mechanism (1), the swingable unloading machine is arranged at the tail of the second fuselage (25), and the loading section (12), the first transport section (17), the second transport section (21) and the swingable unloading mechanism (28) are connected in sequence; The control system (26) is arranged on one side of the second fuselage (25), and is electrically connected to the motor of the hydraulic system pump station, and is used to control the start and stop of the actuators of the first working mechanism (1) and the second working mechanism (2).

2. A cantilever disc cutter rock breaking and tunneling device according to claim 1, characterized in that: The cutting part (11) comprises a plurality of disc-shaped roller cutters (111), a plurality of tool holder bodies (112), a right cantilever (113), a left cantilever (114) and a cutting drive device (115); the right cantilever (113) and the left cantilever (114) are both connected to the cutting part swing mechanism; a cutter disc is arranged between the left cantilever (114) and the right cantilever (113); a plurality of tool holder bodies (112) are distributed on the circumferential surface of the cutter disc; two groups of disc-shaped roller cutters (111) are rotatably arranged between adjacent tool holder bodies (112); the cutting drive device (115) is arranged inside the cutter disc; and the cutting drive device (115) is used to drive the disc-shaped roller cutters (111) to revolve around the center line of the cutter disc.

3. A cantilever disc cutter rock breaking and tunneling device according to claim 1, characterized in that: The cutting part swing mechanism comprises a cutting rotary mechanism (141), a sliding upper frame (142), a fixed lower frame (143), two groups of cutting swing oil cylinders (144), a cutting telescopic oil cylinder (145) and a rotating mechanism (146); the fixed lower frame (143) is fixedly connected to the first fuselage (14); the sliding upper frame (142) is sleeved on one end of the fixed lower frame (143) close to the cutting part (11); the left cantilever (114) and the right cantilever (113) are fixedly arranged on the cutting rotary mechanism (141); the cutting rotary mechanism (141) is fixedly arranged on the sliding upper frame (142); one end of the cutting swing oil cylinder (144) is connected to the cutting rotary mechanism (116); One end of the cutting and retracting oil cylinder (144) is fixed to the sliding upper frame (141), and the other end is fixed to the sliding upper frame (142). The cutting part (11) is swung left and right by the two cutting and retracting oil cylinders (144) extending and retracting in different and alternating states. One end of the cutting and retracting oil cylinder (145) is fixedly connected to the sliding upper frame (142), and the other end is fixed to the fixed lower frame (143). The sliding upper frame (142) is moved forward or backward by the extension and retraction of the cutting and retracting oil cylinder (145). A rotating mechanism (146) is symmetrically arranged at the connection between the cutting part (11) and the cutting and revolving mechanism (141) along the center line of the circumferential surface of the cutting part (11). The rotating mechanism (146) rotates to drive the cutting part (11) to swing up and down.

4. A cantilever disc cutter rock breaking and tunneling device according to claim 1, characterized in that: The swingable unloading mechanism (28) comprises two groups of telescopic swing oil cylinders (281), a conveyor (282), and a slewing mechanism (283). One end of the slewing mechanism (283) is fixedly connected to the second fuselage section (25), and the other end of the slewing mechanism (283) is rotatably connected to the conveyor (282). The tail of the second transport section (21) corresponds to the head of the conveyor (282). One end of the telescopic swing oil cylinder (281) is hinged to the tail of the second fuselage section (25), and the other end is connected to the middle section of the conveyor (282).

5. A cantilever disc cutter rock breaking and tunneling device according to claim 4, characterized in that: A fixed slide (227) is also fixedly arranged on the second fuselage (25), and a movable slide (228) is sleeved on one end of the fixed slide (227). An anchor protection mechanism (22) is connected to one side of the movable slide (228). The movable anchor protection mechanism (22) comprises a drill frame (221), a drill box (222) and a rotating and swinging mechanism. A drill frame (221) is arranged above the drill box (222), and the drill frame (221) is connected to a drill frame fixing seat (225) via a drill frame fixing pin shaft (223). A rotating and swinging mechanism is arranged on one side of the drill box (222), and the rotating and swinging mechanism is used to adjust the position and angle of the drill frame (221), thereby adjusting the position and angle of the drill anchor hole in a small range.

6. A cantilever disc cutter rock breaking and tunneling device according to claim 5, characterized in that: The rotating and swinging mechanism comprises a front-and-rear swinging oil cylinder (224) and a left-and-right rotating mechanism (226); one end of the front-and-rear swinging oil cylinder (224) is fixed on the drill frame (221), and the other end is fixed on the drill frame fixing seat (225); the front-and-rear swinging oil cylinder (224) drives the drill frame (221) to swing in the running direction of the tunnel boring machine; the fixed end of the left-and-right rotating mechanism (226) is fixed on the moving slide (228); the rotating end of the left-and-right rotating mechanism (226) is fixed on the drill frame fixing seat (225); the left-and-right rotating mechanism (226) drives the drill frame (221) to swing in a direction perpendicular to the running direction of the tunnel boring machine.

7. The cantilever disc cutter rock breaking and tunneling device according to claim 1, characterized in that: A plurality of groups of upper supporting mechanisms (15) are arranged at the top ends of the first fuselage section (14) and the second fuselage section (25), and a lower supporting mechanism (16) is arranged at the bottom end of the tail of the second fuselage section (25).

8. A cantilevered disc cutter rock breaking and tunneling device according to claim 7, characterized in that: Four groups of upper support mechanisms (15) are respectively arranged at the top of the first fuselage section (14) and the second fuselage section (25); the upper support mechanism (15) is composed of a telescopic oil cylinder and a support plate, one end of the telescopic oil cylinder is fixedly connected to the top of the first fuselage section (14) or the top of the second fuselage section (25), and the other end is fixedly connected to the support plate, and the support plate abuts against the upper wall of the tunnel when the telescopic oil cylinder is extended.

9. The cantilever disc cutter rock breaking and tunneling device according to claim 6, characterized in that: The angle between the conveyor (282) and the tunnel ground is 25°-30°.

10. The cantilever disc cutter rock breaking and tunneling device according to claim 1, characterized in that: The second fuselage (25) is also provided with a centralized control center (23) for operation by staff. The centralized control center (23) is provided with a plurality of control buttons for being electrically connected to various control branches of the control system (26).

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