Cutting device and heading machine

Abstract

The embodiment of the utility model provides a cutting device and a heading machine, and relates to the technical field of heading equipment, the cutting device comprises at least two cutting structures, and each cutting structure comprises two cutting rollers arranged in an up-down relation; and the two large cutting arms are correspondingly connected with the cutting rollers so as to drive the cutting rollers to move for cutting through the large cutting arms, so that the adaptability of the cutting device is improved through the plurality of cutting rollers capable of working independently, and the working efficiency of the heading machine is effectively improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of tunneling equipment, and particularly relates to a cutting device and a tunneling machine. BACKGROUND

[0002] The cutting device is a core component of the tunneling equipment. Taking a coal mine tunneling machine as an example, in the working process of the coal mine tunneling machine, the coal blocks need to be stripped by the cutting device, and then the coal blocks are transported out by a conveyor.

[0003] The efficiency of the cutting device greatly determines the working efficiency of the tunneling machine. However, the adaptability of the cutting device to the excavation environment is poor. When the soil of the section is relatively complex, the excavation range of the cutting device can only be adjusted by frequently moving the position of the tunneling machine, so that the working efficiency of the tunneling machine is difficult to improve. SUMMARY

[0004] The present application provides a cutting device and a tunneling machine, so as to improve the working efficiency of the tunneling machine.

[0005] In a first aspect, the present application provides a cutting device for a tunneling machine, comprising at least two cutting structures arranged side by side, wherein the cutting structure comprises:

[0006] two cutting drums arranged in an up-down relationship;

[0007] two cutting arms corresponding to the cutting drums, connected to drive the cutting drums to move for cutting.

[0008] In a possible implementation, the cutting arm comprises:

[0009] an arm frame connected to the cutting drum;

[0010] a sliding mechanism configured to be connected to a rack of the tunneling machine, and configured to drive the arm frame to move along the tunneling direction of the tunneling machine.

[0011] In a possible implementation, the sliding mechanism comprises:

[0012] at least one guide column extending along the tunneling direction of the tunneling machine, configured to be connected to the rack, and the arm frame is slidingly connected to the guide column,

[0013] a first driving member configured to connect the arm frame and the rack, and configured to drive the arm frame to move along the guide column.

[0014] In a possible implementation, the cutting arm further comprises an adjusting member, and the arm frame comprises:

[0015] a first support connected with the cutting drum;

[0016] a second support rotatably connected with the first support at an end away from the cutting drum, and connected with the sliding mechanism;

[0017] The adjusting member is configured to drive the first support to rotate relative to the second support to change the included angle between the first support and the second support.

[0018] In a possible implementation, the adjusting member includes at least one first oil cylinder, the first oil cylinder is rotatably connected with the second support, and an output end of the first oil cylinder is rotatably connected with the first support.

[0019] In a possible implementation, the cutting drum includes:

[0020] an intermediate drum;

[0021] two outer drums, arranged at two ends of the intermediate drum, and provided with mounting cavities at ends away from the intermediate drum;

[0022] two telescopic drums, arranged in the mounting cavities of the two outer drums respectively, and movable along the length direction of the outer drum to change the length of the telescopic drum extending out of the mounting cavity.

[0023] In a possible implementation, the telescopic drum includes:

[0024] a drum body, at least partially located in the mounting cavity;

[0025] a second oil cylinder, located in the mounting cavity, and having an output end connected with the drum body to drive the drum body to move.

[0026] In a possible implementation, the cutting drum further includes a driving motor and a speed reducer, the driving motor is in transmission connection with the speed reducer, and the speed reducer is in transmission connection with the intermediate drum to drive the intermediate drum, the outer drum and the telescopic drum to rotate for cutting.

[0027] In a second aspect, the embodiments of the present application provide a tunneling machine, including a rack and the cutting device of any one of the first aspect, and the cutting arm of the cutting device is connected with the rack.

[0028] In a possible implementation, the rack is provided with a loading device, a conveyor and a crusher;

[0029] The loading device and the conveyer are arranged in one-to-one correspondence with the cutting structure, the loading device is located below the cutting structure to collect the material cut by the cutting structure and deliver the material into the conveyer, and the conveyer is used to deliver the material into the crusher.

[0030] The cutting device and the tunneling machine provided by the embodiment of the application have the following advantages: the cutting device is provided with at least two cutting structures, the cutting structure includes two cutting drums and two cutting arms, the two cutting drums are arranged in an up-down relationship and are arranged on the two cutting arms correspondingly, the cutting arm can drive the cutting drum to move and cut independently, one cutting drum can cut the material in the corresponding cuttable range independently, a plurality of cutting drums can be combined to realize the overall cutting of a section in different cooperation modes, the cutting requirement of different soil sections can be met, the cutting range is obviously increased by cooperation of the plurality of cutting drums, the cutting arm can further drive the cutting drum to move, the cutting range of the cutting drum is further expanded, the tunneling machine can avoid frequent movement, and the working efficiency of the tunneling machine is effectively improved. BRIEF DESCRIPTION OF DRAWINGS

[0031] The accompanying drawings, which are incorporated into and form a part of the specification, illustrate an embodiment consistent with the present application and, together with the description, serve to explain the principles of the application.

[0032] Figure 1 A structural schematic diagram of the tunneling machine provided by the embodiment of the application is shown in the figure.

[0033] Figure 2 A structural schematic diagram of the cutting device provided by the embodiment of the application is shown in the figure.

[0034] Figure 3 A structural schematic diagram of the cutting drum of the cutting device provided by the embodiment of the application is shown in the figure.

[0035] Figure 4 A structural schematic diagram of the cutting arm of the cutting device provided by the embodiment of the application is shown in the figure.

[0036] Figure 5 A cutting area schematic diagram of the cutting device provided by the embodiment of the application is shown in the figure.

[0037] Reference signs:

[0038] 100 - cutting structure;

[0039] 110 - cutting drum; 111 - intermediate drum; 112 - outer drum; 113 - telescopic drum; 114 - speed reducer;

[0040] 120 - Cutting boom; 121 - Boom; 1211 - First support; 1212 - Second support; 122 - Sliding mechanism; 1221 - Guide column; 1222 - First drive component; 123 - Adjusting component;

[0041] 200 - Loading device;

[0042] 300 - Transport aircraft;

[0043] 400 - Crusher; 410 - Hopper;

[0044] 500-chassis;

[0045] 600 - Covering;

[0046] 700-Electrical side platform;

[0047] 800-Hydraulic side platform;

[0048] 900-Cockpit.

[0049] The accompanying drawings illustrate specific embodiments of this application, which will be described in more detail below. These drawings and descriptions are not intended to limit the scope of the concept in any way, but rather to illustrate the concept of this application to those skilled in the art through reference to particular embodiments. Detailed Implementation

[0050] Exemplary embodiments will now be described in detail, examples of which are illustrated in the accompanying drawings. When the following description relates to the drawings, unless otherwise indicated, the same numbers in different drawings denote the same or similar elements. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with this application. Rather, they are merely examples of apparatuses and methods consistent with some aspects of this application as detailed in the appended claims.

[0051] In the embodiments of this application, 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. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the embodiments of this application, unless otherwise stated, "multiple" means two or more.

[0052] Furthermore, in the embodiments of this application, directional terms such as "upper," "lower," "left," and "right" are defined relative to the positions in which the components are schematically placed in the accompanying drawings. It should be understood that these directional terms are relative concepts, used for relative description and clarification, and can change accordingly depending on the position of the components in the accompanying drawings.

[0053] In the embodiments of this application, unless otherwise explicitly specified and limited, the term "connection" should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral part; it can be a direct connection or an indirect connection through an intermediate medium.

[0054] In embodiments of this application, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes that element.

[0055] In the embodiments of this application, the terms "exemplary" or "for example" are used to indicate that something is an example, illustration, or description. Any embodiment or design that is described as "exemplary" or "for example" in the embodiments of this application should not be construed as being more preferred or advantageous than other embodiments or design. Specifically, the use of the terms "exemplary" or "for example" is intended to present the relevant concepts in a specific manner.

[0056] Due to its advantages in construction safety and environmental protection, the non-blasting mining method of tunnel boring machines is being used more and more widely in coal mines and tunnels.

[0057] The cutting device is one of the core components of a tunneling machine. Taking a coal mine tunneling machine as an example, when the tunneling machine is working, it first uses the cutting device to strip the coal blocks. The stripped coal and ore fall onto the loading device. The star wheel on the loading device rotates to load the coal blocks, ore and other fragments into the scraper conveyor. Then, the drive sprocket of the scraper conveyor drives the scraper chain to rotate, transferring the material to the belt conveyor. Subsequently, the belt conveyor continues to transport the material backward, and finally, the material is transported out by the mine car.

[0058] Currently, the cutting range of the cutting device is small and the cutting method is relatively simple. It is necessary to move the tunneling machine frequently to meet the tunneling needs under different conditions, which greatly affects the working efficiency of the tunneling machine.

[0059] To avoid the aforementioned problems, this application provides a cutting device and a tunneling machine. The cutting device has at least two cutting structures, each including two cutting rollers and two cutting booms. The two cutting rollers are arranged vertically and are correspondingly mounted on the two cutting booms. The cutting booms can drive the cutting rollers to move independently for cutting, allowing each cutting roller to cut the material within its corresponding cutting range individually. Multiple cutting rollers can be combined in different ways to achieve overall cutting of the cross-section, adapting to the cutting needs of different application scenarios. Furthermore, the combined cutting of multiple cutting rollers significantly increases the cutting range, avoiding frequent relocation of the tunneling machine and effectively improving the cutting efficiency of the tunneling machine.

[0060] It is understood that the tunneling machine in this embodiment can be a mining machine, a full-face tunnel boring machine, a shield machine, or other equipment, as long as a cutting device is used for cutting. This embodiment does not limit it.

[0061] The technical solution of this application and how the technical solution of this application solves the above-mentioned technical problems are described in detail below with specific embodiments. These specific embodiments can be combined with each other, and the same or similar concepts or processes may not be described again in some embodiments. The embodiments of this application will now be described with reference to the accompanying drawings.

[0062] In some embodiments, see Figure 1 and Figure 2 As shown, the cutting device includes at least two cutting structures 100.

[0063] The cutting structure 100 includes two cutting rollers 110 and two cutting booms 120. The cutting rollers 110 are correspondingly mounted on the cutting booms 120. The cutting rollers 110 are used to cut the cross-section so that the tunneling machine can tunnel. The cutting booms 120 can adjust the position of the cutting rollers 110 so that each cutting roller 110 can independently cut grooves. This facilitates the cooperation of multiple cutting rollers 110 in the cutting structure 100 to cut materials, avoids frequent machine relocation, and effectively improves cutting efficiency.

[0064] The number of cutting structures 100 and the location of the cutting device can be selected according to the actual situation. For example, when the cross-section is large, four cutting structures 100 can be set at the same time, two sets at the top and two sets at the bottom. This embodiment does not limit them.

[0065] Taking the setting of two cut structures 100 as an example, such as Figure 2 and Figure 5 As shown, the two slit structures 100 can be arranged side by side in the horizontal direction.

[0066] When the tunneling machine is working, the four cutting booms 120 are located at the top, bottom, left, and right of the front end of the tunneling machine, respectively, corresponding to... Figure 5 The four regions A, B, C, and D are defined as follows: the two cutting arms 120 of one cutting structure 100 are located in regions A and C respectively, the two cutting arms 120 of another cutting structure 100 are located in regions B and D respectively, and the cutting roller 110 is also located in the four regions A, B, C, and D respectively.

[0067] All four cutting rollers 110 and the cutting boom 120 can operate independently. Their operation can be controlled by programming according to actual conditions. For example, the position of each cutting roller 110 can be determined according to the degree of soil looseness in the area corresponding to each cutting roller 110, and the cutting sequence of the cutting rollers 110 can be determined.

[0068] For example, when the soil looseness is similar in areas A and B, and similar in areas B and D, the movement trajectories of the two cutting rollers 110 in areas A and B can be the same, while the movement trajectories of the two cutting rollers 110 in areas C and D can be the same.

[0069] For example, when the soil looseness in regions A and C is similar, and the soil looseness in regions B and D is similar, the movement trajectories of the two cutting rollers 110 in regions A and C are the same, and the movement trajectories of the two cutting rollers 110 in regions B and D are the same.

[0070] For example, when there are significant differences in the looseness of the soil in areas A, B, C, and D, the cutting rollers 110 in the four areas A, B, C, and D can be moved in different ways.

[0071] When the cutting device is working, each cutting roller 110 is independent of each other and does not interfere with each other. Therefore, the movement of each cutting arm 120 can be controlled according to the actual situation to change the movement mode of the corresponding cutting roller 110. This allows the cutting device to flexibly adjust its working mode according to the working environment, thereby improving the applicability of the cutting device. Furthermore, the cutting efficiency can be greatly improved by having multiple cutting rollers 110 cut different areas.

[0072] In some embodiments, see Figure 4 As shown, the cutting boom 120 includes a boom 121 and a sliding mechanism 122. The boom 121 is connected to the cutting drum 110. The sliding mechanism 122 is used to connect to the frame of the tunneling machine. The sliding mechanism 122 is configured to drive the boom 121 to move along the tunneling direction of the tunneling machine.

[0073] Specifically, the boom 121 can move forward S meters relative to the frame under the drive of the sliding mechanism 122, where S is a value within the sliding stroke range of the sliding mechanism 122, which can be selected according to the actual situation. This embodiment does not limit it.

[0074] When the cutting device is cutting, the sliding mechanism 122 can drive the boom 121 to move the cutting drum 110 forward a certain distance to make grooves, so that each cutting drum 110 can cut individually according to the actual situation, thereby improving the adaptability of the cutting device.

[0075] For example, the sliding mechanism 122 includes at least one guide post 1221 and a first drive member 1222.

[0076] The guide post 1221 extends along the tunneling direction of the tunneling machine and is used to connect with the frame. The boom 121 is slidably connected to the guide post 1221. The first drive member 1222 is used to connect the boom 121 and the frame. The first drive member 1222 can drive the boom 121 to move along the guide post 1221, so that the cutting drum 110 can move relative to the frame in the tunneling direction.

[0077] A sleeve can be provided at one end of the boom 121 connected to the guide column 1221. The sleeve is fitted onto the guide column 1221 and slidably connected to the guide column 1221. Thus, during the process of the first driving member 1222 driving the boom 121 to move, the movement direction of the boom 121 can be guided by the cooperation of the guide column 1221 and the sleeve, so as to avoid the boom 121 from deviating.

[0078] It is understood that the first driving component 1222 can also be a hydraulic cylinder or a pneumatic cylinder or other driving device, as long as it can drive the boom 121 to move and is suitable for the operating environment of the tunneling machine. This embodiment does not limit it.

[0079] For example, the sliding mechanism 122 may include a guide rail, a guide block and a first driving member 1222. The guide block is fixedly connected to the boom 121 and can move along the guide rail. Of course, the guide rail is set on the frame along the tunneling direction of the tunneling machine. The first driving member 1222 can drive the boom 121 to slide along the guide rail.

[0080] It is understood that the sliding mechanism 122 can also be other structures, as long as it can drive the boom 121 to move the cutting drum 110 along the tunneling direction. This embodiment does not limit it.

[0081] In some embodiments, the cutting boom 120 further includes an adjusting member 123, and the boom 121 includes a first support 1211 and a second support 1212. The first support 1211 is connected to the cutting roller 110; the second support 1212 is rotatably connected to the end of the first support 1211 away from the cutting roller 110, and the second support 1212 is also connected to the sliding mechanism 122.

[0082] The adjusting member 123 is used to drive the first support 1211 to rotate relative to the second support 1212, thereby changing the included angle between the first support 1211 and the second support 1212, thereby driving the cutting roller 110 to rotate and changing the angle of the cutting roller 110 so that it can perform complete cutting in the corresponding area.

[0083] For example, the adjusting member 123 includes at least one first hydraulic cylinder, which is rotatably connected to the second bracket 1212, and the output end of the first hydraulic cylinder is rotatably connected to the first bracket 1211.

[0084] To improve stability, a first hydraulic cylinder can be installed on each of the opposite sides of the first support 1211. The two first hydraulic cylinders can operate synchronously to drive the support to rotate relative to the second support 1212, thereby adjusting the tilt angle of the first support 1211 and preventing the first support 1211 from shaking during use.

[0085] It is understandable that the number and location of the first hydraulic cylinder can be adjusted according to the actual situation, and this embodiment does not limit them.

[0086] In some embodiments, see Figure 3 As shown, the cutting roller 110 includes an intermediate roller 111, two outer rollers 112, and two telescopic rollers 113. The two outer rollers 112 are respectively disposed at both ends of the intermediate roller 111, and the outer rollers 112 have a mounting cavity at the end opposite to the intermediate roller 111. The two telescopic rollers 113 are correspondingly disposed in the mounting cavities of the two outer rollers 112. The telescopic rollers 113 can move along the length direction of the outer rollers 112 to change the length of the telescopic rollers 113 extending out of the mounting cavity. Of course, the intermediate roller 111, outer rollers 112, and telescopic rollers 113 are all provided with sharp teeth, which are used for cutting.

[0087] The telescopic drum 113 can extend and retract relative to the outer drum 112. When the cutting area is small, the telescopic drum 113 can retract into the mounting cavity to reduce the length of the cutting drum 110, thereby reducing the cutting range. When the cutting area is large, the telescopic drum 113 can extend out of the mounting cavity to effectively extend the length of the cutting drum 110. Without moving the tunneling machine, the cutting range of the cutting drum 110 can be expanded, thereby improving the adaptability of the cutting device to different operating environments.

[0088] The telescopic roller 113 may include a roller body and a second hydraulic cylinder. The second hydraulic cylinder is fixed in the mounting cavity, and its output end is connected to the roller body. The roller body is slidably connected to the mounting cavity. The second hydraulic cylinder can drive the roller body to retract or extend out of the mounting cavity, thereby changing the position of the roller body.

[0089] It is understood that the telescopic roller 113 can also be of other structures, as long as its cutting part can retract or extend out of the mounting cavity to adjust the length of the cutting roller 110. This embodiment does not limit it.

[0090] In some embodiments, the cutting drum 110 further includes a drive motor and a reducer 114. The drive motor is connected to the reducer 114 in a transmission connection, and the reducer 114 is connected to the intermediate drum 111 in a transmission connection, so as to drive the intermediate drum 111, the outer drum 112 and the shrinking drum to rotate for cutting.

[0091] Specifically, the intermediate roller 111 can be divided into a left roller and a right roller, which are connected by a drive shaft. The output end of the reducer 114 is connected to the drive shaft. When the drive motor starts, the reducer 114 will synchronously drive the drive shaft to rotate, thereby connecting the left roller and the right roller. The outer roller 112 can also be connected to the left roller and the right roller through the drive shaft. So when the left roller and the right roller rotate, the outer roller 112 will rotate synchronously to cut. In addition, the telescopic roller 113 is connected to the outer roller 112 and will rotate synchronously with the outer roller 112. Thus, the drive motor can drive the intermediate roller 111, the outer roller 112, and the telescopic roller 113 to rotate synchronously for cutting.

[0092] This application also provides a tunneling machine, including a frame and the cutting device in the above embodiment, wherein the cutting boom 120 of the cutting device is connected to the frame.

[0093] The frame supports the cutting device and can move the cutting device. After the cutting device completes the cutting of one section, the frame can move the cutting device forward to process the next section. The cutting arm 120 can drive the cutting roller 110 forward a certain distance. Therefore, after each frame movement, the cutting roller 110 can cut within a larger length range. This effectively reduces the number of frame movements within the same tunnel length, thereby significantly improving cutting efficiency.

[0094] Understandably, similar to existing tunneling machines, the frame includes structures such as the chassis 500, electrical side platform 700, hydraulic side platform 800, operator's cab 900, and cover 600 to ensure the normal operation of the tunneling machine.

[0095] The frame is also equipped with a loading device 200, a conveyor 300, and a crusher 400. The loading device 200 and the conveyor 300 are each configured in a one-to-one correspondence with the cutting structure 100, that is, one loading device 200 and one conveyor 300 are configured for each cutting structure 100. The loading device 200 is located below the cutting structure 100 to collect the material cut by the cutting structure 100 and transport the material to the conveyor 300. The conveyor 300 is used to transport the material to the crusher 400. The crusher 400 is equipped with a hopper 410 located at the discharge end of the conveyor. The hopper 410 can receive the material transported by the conveyor and send it into the crusher 400, where it is crushed to reduce its volume for subsequent transportation.

[0096] It is understandable that the loading device 200 can use an existing structure, such as including a main body, two side panels, two star wheels and a hydraulic motor that drives the star wheels to rotate. The side panels are arranged opposite each other on both sides of the main body and can be driven to move closer or further away from each other to adjust the width of the receiving part of the main body. The scraper chain of the conveyor is connected to the main body. The two star wheels rotate in opposite directions, which can transport the material falling on the main body to the scraper chain and transport it to the crusher 400 through the scraper chain.

[0097] Finally, it should be noted that other embodiments of the invention will readily occur to those skilled in the art upon consideration of the specification and practice of the invention disclosed herein. This invention is intended to cover any variations, uses, or adaptations of the invention that follow the general principles of the invention and include common knowledge or customary techniques in the art not disclosed herein, and is not limited to the precise structures described above and shown in the accompanying drawings, and various modifications and changes can be made without departing from its scope. The scope of the invention is limited only by the appended claims.

Claims

1. A cutting device for a tunneling machine, characterized in that, Includes at least two sectional structures (100) arranged side by side, said sectional structure (100) comprising: Two cutting rollers (110) are arranged vertically; Two cutting arms (120) are connected to the cutting drum (110) to drive the cutting drum (110) to move for cutting.

2. The cutting device according to claim 1, characterized in that, The cutting arm (120) includes: The boom (121) is connected to the cutting roller (110); A sliding mechanism (122) is used to connect to the frame of the tunneling machine, the sliding mechanism (122) being configured to drive the boom (121) to move along the tunneling direction of the tunneling machine.

3. The cutting device according to claim 2, characterized in that, The sliding mechanism (122) includes: At least one guide post (1221) extends along the tunneling direction of the tunneling machine, the guide post (1221) being used for connection with the frame, and the boom (121) being slidably connected to the guide post (1221). A first drive member (1222) is used to connect the boom (121) to the frame, and the first drive member (1222) is configured to drive the boom (121) to move along the guide post (1221).

4. The cutting device according to claim 2, characterized in that, The cutting boom (120) also includes an adjusting member (123), and the boom (121) includes: The first support (1211) is connected to the cutting roller (110); The second bracket (1212) is rotatably connected to the end of the first bracket (1211) away from the cutting roller (110), and the second bracket (1212) is also connected to the sliding mechanism (122); The adjusting member (123) is configured to drive the first bracket (1211) to rotate relative to the second bracket (1212) to change the angle between the first bracket (1211) and the second bracket (1212).

5. The cutting device according to claim 4, characterized in that, The adjusting member (123) includes at least one first hydraulic cylinder, which is rotatably connected to the second bracket (1212), and the output end of the first hydraulic cylinder is rotatably connected to the first bracket (1211).

6. The cutting device according to any one of claims 1-5, characterized in that, The cutting roller (110) includes: Intermediate roller (111); Two outer rollers (112) are respectively disposed at both ends of the intermediate roller (111), and the outer roller (112) has an installation cavity at the end away from the intermediate roller (111); Two telescopic rollers (113) are respectively arranged in the mounting cavities of the two outer rollers (112). The telescopic rollers (113) can move along the length direction of the outer rollers (112) to change the length of the telescopic rollers (113) extending out of the mounting cavity.

7. The cutting device according to claim 6, characterized in that, The telescopic roller (113) includes: The roller body is at least partially located within the mounting cavity; The second hydraulic cylinder is located inside the mounting cavity, and its output end is connected to the roller body to drive the roller body to move.

8. The cutting device according to claim 6, characterized in that, The cutting roller (110) also includes a drive motor and a reducer (114). The drive motor is connected to the reducer (114) and the reducer (114) is connected to the intermediate roller (111) to drive the intermediate roller (111), the outer roller (112) and the telescopic roller (113) to rotate for cutting.

9. A tunneling machine, characterized in that, It includes a frame and a cutting device as described in any one of claims 1-8, wherein the cutting arm (120) of the cutting device is connected to the frame.

10. The tunneling machine according to claim 9, characterized in that, The frame is equipped with a loading device (200), a conveyor (300), and a crusher (400); The loading device (200) and the conveyor (300) are each configured in a one-to-one correspondence with the cutting structure (100). The loading device (200) is located below the cutting structure (100) to collect the material cut by the cutting structure (100) and transport the material to the conveyor (300). The conveyor (300) is used to transport the material to the crusher (400).

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